diff options
| author | Andy Wingo <wingo@pobox.com> | 2015-04-19 13:28:46 +0200 |
|---|---|---|
| committer | Andy Wingo <wingo@pobox.com> | 2015-04-19 13:32:24 +0200 |
| commit | e418908760d8b7826017b07b2a5d2e365152e7ae (patch) | |
| tree | 82044c18a470e935170c97b5870a545de47f4084 /src | |
| parent | a2109619cd5c28c4739e659e40b6b524c7c0d488 (diff) | |
Remove src/libsystemd-network
Diffstat (limited to 'src')
47 files changed, 0 insertions, 15070 deletions
diff --git a/src/libsystemd-network/Makefile b/src/libsystemd-network/Makefile deleted file mode 120000 index d0b0e8e008..0000000000 --- a/src/libsystemd-network/Makefile +++ /dev/null @@ -1 +0,0 @@ -../Makefile
\ No newline at end of file diff --git a/src/libsystemd-network/dhcp-identifier.c b/src/libsystemd-network/dhcp-identifier.c deleted file mode 100644 index f7a1492363..0000000000 --- a/src/libsystemd-network/dhcp-identifier.c +++ /dev/null @@ -1,98 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2015 Tom Gundersen <teg@jklmen> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - - -#include "sd-id128.h" -#include "libudev.h" -#include "udev-util.h" - -#include "virt.h" -#include "sparse-endian.h" -#include "siphash24.h" - -#include "dhcp6-protocol.h" -#include "dhcp-identifier.h" -#include "network-internal.h" - -#define SYSTEMD_PEN 43793 -#define HASH_KEY SD_ID128_MAKE(80,11,8c,c2,fe,4a,03,ee,3e,d6,0c,6f,36,39,14,09) - -int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len) { - sd_id128_t machine_id; - int r; - - assert(duid); - assert(len); - - r = sd_id128_get_machine(&machine_id); - if (r < 0) - return r; - - duid->type = htobe16(DHCP6_DUID_EN); - duid->en.pen = htobe32(SYSTEMD_PEN); - *len = sizeof(duid->type) + sizeof(duid->en); - - /* a bit of snake-oil perhaps, but no need to expose the machine-id - directly */ - siphash24(duid->en.id, &machine_id, sizeof(machine_id), HASH_KEY.bytes); - - return 0; -} - - -int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, uint32_t *_id) { - /* name is a pointer to memory in the udev_device struct, so must - have the same scope */ - _cleanup_udev_device_unref_ struct udev_device *device = NULL; - const char *name = NULL; - uint64_t id; - - if (detect_container(NULL) <= 0) { - /* not in a container, udev will be around */ - _cleanup_udev_unref_ struct udev *udev; - char ifindex_str[2 + DECIMAL_STR_MAX(int)]; - - udev = udev_new(); - if (!udev) - return -ENOMEM; - - sprintf(ifindex_str, "n%d", ifindex); - device = udev_device_new_from_device_id(udev, ifindex_str); - if (device) { - if (udev_device_get_is_initialized(device) <= 0) - /* not yet ready */ - return -EBUSY; - - name = net_get_name(device); - } - } - - if (name) - siphash24((uint8_t*)&id, name, strlen(name), HASH_KEY.bytes); - else - /* fall back to MAC address if no predictable name available */ - siphash24((uint8_t*)&id, mac, mac_len, HASH_KEY.bytes); - - /* fold into 32 bits */ - *_id = (id & 0xffffffff) ^ (id >> 32); - - return 0; -} diff --git a/src/libsystemd-network/dhcp-identifier.h b/src/libsystemd-network/dhcp-identifier.h deleted file mode 100644 index 643d4970d5..0000000000 --- a/src/libsystemd-network/dhcp-identifier.h +++ /dev/null @@ -1,64 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2015 Tom Gundersen <teg@jklmen> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - - -#include "macro.h" -#include "sparse-endian.h" -#include "sd-id128.h" - -/* RFC 3315 section 9.1: - * A DUID can be no more than 128 octets long (not including the type code). - */ -#define MAX_DUID_LEN 128 - -struct duid { - uint16_t type; - union { - struct { - /* DHCP6_DUID_LLT */ - uint16_t htype; - uint32_t time; - uint8_t haddr[0]; - } _packed_ llt; - struct { - /* DHCP6_DUID_EN */ - uint32_t pen; - uint8_t id[8]; - } _packed_ en; - struct { - /* DHCP6_DUID_LL */ - int16_t htype; - uint8_t haddr[0]; - } _packed_ ll; - struct { - /* DHCP6_DUID_UUID */ - sd_id128_t uuid; - } _packed_ uuid; - struct { - uint8_t data[MAX_DUID_LEN]; - } _packed_ raw; - }; -} _packed_; - -int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len); -int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, uint32_t *_id); diff --git a/src/libsystemd-network/dhcp-internal.h b/src/libsystemd-network/dhcp-internal.h deleted file mode 100644 index 7c60ef123c..0000000000 --- a/src/libsystemd-network/dhcp-internal.h +++ /dev/null @@ -1,74 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdint.h> -#include <linux/if_packet.h> -#include <net/if_arp.h> -#include <net/ethernet.h> - -#include "socket-util.h" - -#include "sd-dhcp-client.h" -#include "dhcp-protocol.h" - -int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link, - uint32_t xid, const uint8_t *mac_addr, - size_t mac_addr_len, uint16_t arp_type); -int dhcp_network_bind_udp_socket(be32_t address, uint16_t port); -int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, - const void *packet, size_t len); -int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port, - const void *packet, size_t len); - -int dhcp_option_append(DHCPMessage *message, size_t size, size_t *offset, uint8_t overload, - uint8_t code, size_t optlen, const void *optval); - -typedef int (*dhcp_option_cb_t)(uint8_t code, uint8_t len, - const uint8_t *option, void *user_data); - -int dhcp_option_parse(DHCPMessage *message, size_t len, - dhcp_option_cb_t cb, void *user_data); - -int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid, - uint8_t type, uint16_t arp_type, size_t optlen, - size_t *optoffset); - -uint16_t dhcp_packet_checksum(uint8_t *buf, size_t len); - -void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr, - uint16_t source, be32_t destination_addr, - uint16_t destination, uint16_t len); - -int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum); - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_client*, sd_dhcp_client_unref); -#define _cleanup_dhcp_client_unref_ _cleanup_(sd_dhcp_client_unrefp) - -/* If we are invoking callbacks of a dhcp-client, ensure unreffing the - * client from the callback doesn't destroy the object we are working - * on */ -#define DHCP_CLIENT_DONT_DESTROY(client) \ - _cleanup_dhcp_client_unref_ _unused_ sd_dhcp_client *_dont_destroy_##client = sd_dhcp_client_ref(client) - -#define log_dhcp_client(client, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "DHCP CLIENT (0x%x): " fmt, client->xid, ##__VA_ARGS__) diff --git a/src/libsystemd-network/dhcp-lease-internal.h b/src/libsystemd-network/dhcp-lease-internal.h deleted file mode 100644 index 9e184ac4b5..0000000000 --- a/src/libsystemd-network/dhcp-lease-internal.h +++ /dev/null @@ -1,87 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdint.h> -#include <linux/if_packet.h> - -#include "refcnt.h" -#include "util.h" - -#include "dhcp-protocol.h" - -#include "sd-dhcp-client.h" - -struct sd_dhcp_route { - struct in_addr dst_addr; - struct in_addr gw_addr; - unsigned char dst_prefixlen; -}; - -struct sd_dhcp_lease { - RefCount n_ref; - - int32_t time_offset; - uint32_t t1; - uint32_t t2; - uint32_t lifetime; - uint32_t mtu_aging_timeout; - be32_t address; - be32_t server_address; - be32_t subnet_mask; - be32_t router; - be32_t next_server; - be32_t broadcast; - struct in_addr *dns; - size_t dns_size; - struct in_addr *ntp; - size_t ntp_size; - struct in_addr *policy_filter; - size_t policy_filter_size; - struct sd_dhcp_route *static_route; - size_t static_route_size; - size_t static_route_allocated; - uint16_t boot_file_size; - uint16_t mdr; - uint16_t mtu; - uint8_t ttl; - bool ip_forward; - bool ip_forward_non_local; - char *domainname; - char *hostname; - char *root_path; - uint8_t *client_id; - size_t client_id_len; -}; - -int dhcp_lease_new(sd_dhcp_lease **ret); -int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option, - void *user_data); - -int dhcp_lease_set_default_subnet_mask(sd_dhcp_lease *lease); - -int dhcp_lease_set_client_id(sd_dhcp_lease *lease, const uint8_t *client_id, - size_t client_id_len); - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_lease*, sd_dhcp_lease_unref); -#define _cleanup_dhcp_lease_unref_ _cleanup_(sd_dhcp_lease_unrefp) diff --git a/src/libsystemd-network/dhcp-network.c b/src/libsystemd-network/dhcp-network.c deleted file mode 100644 index 7f10838de1..0000000000 --- a/src/libsystemd-network/dhcp-network.c +++ /dev/null @@ -1,235 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <sys/socket.h> -#include <string.h> -#include <linux/if_packet.h> -#include <linux/if_infiniband.h> -#include <net/ethernet.h> -#include <net/if_arp.h> -#include <stdio.h> -#include <linux/filter.h> - -#include "socket-util.h" - -#include "dhcp-internal.h" - -static int _bind_raw_socket(int ifindex, union sockaddr_union *link, - uint32_t xid, const uint8_t *mac_addr, - size_t mac_addr_len, - const uint8_t *bcast_addr, - const struct ether_addr *eth_mac, - uint16_t arp_type, uint8_t dhcp_hlen) { - struct sock_filter filter[] = { - BPF_STMT(BPF_LD + BPF_W + BPF_LEN, 0), /* A <- packet length */ - BPF_JUMP(BPF_JMP + BPF_JGE + BPF_K, sizeof(DHCPPacket), 1, 0), /* packet >= DHCPPacket ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(DHCPPacket, ip.protocol)), /* A <- IP protocol */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_UDP, 1, 0), /* IP protocol == UDP ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(DHCPPacket, ip.frag_off)), /* A <- Flags */ - BPF_STMT(BPF_ALU + BPF_AND + BPF_K, 0x20), /* A <- A & 0x20 (More Fragments bit) */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0, 1, 0), /* A == 0 ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(DHCPPacket, ip.frag_off)), /* A <- Flags + Fragment offset */ - BPF_STMT(BPF_ALU + BPF_AND + BPF_K, 0x1fff), /* A <- A & 0x1fff (Fragment offset) */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0, 1, 0), /* A == 0 ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(DHCPPacket, udp.dest)), /* A <- UDP destination port */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, DHCP_PORT_CLIENT, 1, 0), /* UDP destination port == DHCP client port ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(DHCPPacket, dhcp.op)), /* A <- DHCP op */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, BOOTREPLY, 1, 0), /* op == BOOTREPLY ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(DHCPPacket, dhcp.htype)), /* A <- DHCP header type */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, arp_type, 1, 0), /* header type == arp_type ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(DHCPPacket, dhcp.hlen)), /* A <- MAC address length */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, dhcp_hlen, 1, 0), /* address length == dhcp_hlen ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_W + BPF_ABS, offsetof(DHCPPacket, dhcp.xid)), /* A <- client identifier */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, xid, 1, 0), /* client identifier == xid ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_IMM, htobe32(*((unsigned int *) eth_mac))), /* A <- 4 bytes of client's MAC */ - BPF_STMT(BPF_MISC + BPF_TAX, 0), /* X <- A */ - BPF_STMT(BPF_LD + BPF_W + BPF_ABS, offsetof(DHCPPacket, dhcp.chaddr)), /* A <- 4 bytes of MAC from dhcp.chaddr */ - BPF_STMT(BPF_ALU + BPF_XOR + BPF_X, 0), /* A xor X */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0, 1, 0), /* A == 0 ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_IMM, htobe16(*((unsigned short *) (((char *) eth_mac) + 4)))), /* A <- remainder of client's MAC */ - BPF_STMT(BPF_MISC + BPF_TAX, 0), /* X <- A */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(DHCPPacket, dhcp.chaddr) + 4), /* A <- remainder of MAC from dhcp.chaddr */ - BPF_STMT(BPF_ALU + BPF_XOR + BPF_X, 0), /* A xor X */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0, 1, 0), /* A == 0 ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_W + BPF_ABS, offsetof(DHCPPacket, dhcp.magic)), /* A <- DHCP magic cookie */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, DHCP_MAGIC_COOKIE, 1, 0), /* cookie == DHCP magic cookie ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_RET + BPF_K, 65535), /* return all */ - }; - struct sock_fprog fprog = { - .len = ELEMENTSOF(filter), - .filter = filter - }; - _cleanup_close_ int s = -1; - int r, on = 1; - - assert(ifindex > 0); - assert(link); - - s = socket(AF_PACKET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); - if (s < 0) - return -errno; - - r = setsockopt(s, SOL_PACKET, PACKET_AUXDATA, &on, sizeof(on)); - if (r < 0) - return -errno; - - r = setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)); - if (r < 0) - return -errno; - - link->ll.sll_family = AF_PACKET; - link->ll.sll_protocol = htons(ETH_P_IP); - link->ll.sll_ifindex = ifindex; - link->ll.sll_hatype = htons(arp_type); - link->ll.sll_halen = mac_addr_len; - memcpy(link->ll.sll_addr, bcast_addr, mac_addr_len); - - r = bind(s, &link->sa, sizeof(link->ll)); - if (r < 0) - return -errno; - - r = s; - s = -1; - - return r; -} - -int dhcp_network_bind_raw_socket(int ifindex, union sockaddr_union *link, - uint32_t xid, const uint8_t *mac_addr, - size_t mac_addr_len, uint16_t arp_type) { - static const uint8_t eth_bcast[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; - /* Default broadcast address for IPoIB */ - static const uint8_t ib_bcast[] = { - 0x00, 0xff, 0xff, 0xff, 0xff, 0x12, 0x40, 0x1b, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xff, 0xff, 0xff, 0xff - }; - struct ether_addr eth_mac = { { 0, 0, 0, 0, 0, 0 } }; - const uint8_t *bcast_addr = NULL; - uint8_t dhcp_hlen = 0; - - assert_return(mac_addr_len > 0, -EINVAL); - - if (arp_type == ARPHRD_ETHER) { - assert_return(mac_addr_len == ETH_ALEN, -EINVAL); - memcpy(ð_mac, mac_addr, ETH_ALEN); - bcast_addr = eth_bcast; - dhcp_hlen = ETH_ALEN; - } else if (arp_type == ARPHRD_INFINIBAND) { - assert_return(mac_addr_len == INFINIBAND_ALEN, -EINVAL); - bcast_addr = ib_bcast; - } else - return -EINVAL; - - return _bind_raw_socket(ifindex, link, xid, mac_addr, mac_addr_len, - bcast_addr, ð_mac, arp_type, dhcp_hlen); -} - -int dhcp_network_bind_udp_socket(be32_t address, uint16_t port) { - union sockaddr_union src = { - .in.sin_family = AF_INET, - .in.sin_port = htobe16(port), - .in.sin_addr.s_addr = address, - }; - _cleanup_close_ int s = -1; - int r, on = 1, tos = IPTOS_CLASS_CS6; - - s = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); - if (s < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)); - if (r < 0) - return -errno; - - r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); - if (r < 0) - return -errno; - - if (address == INADDR_ANY) { - r = setsockopt(s, IPPROTO_IP, IP_PKTINFO, &on, sizeof(on)); - if (r < 0) - return -errno; - - r = setsockopt(s, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)); - if (r < 0) - return -errno; - } else { - r = setsockopt(s, IPPROTO_IP, IP_FREEBIND, &on, sizeof(on)); - if (r < 0) - return -errno; - } - - r = bind(s, &src.sa, sizeof(src.in)); - if (r < 0) - return -errno; - - r = s; - s = -1; - - return r; -} - -int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, - const void *packet, size_t len) { - int r; - - assert(link); - assert(packet); - assert(len); - - r = sendto(s, packet, len, 0, &link->sa, sizeof(link->ll)); - if (r < 0) - return -errno; - - return 0; -} - -int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port, - const void *packet, size_t len) { - union sockaddr_union dest = { - .in.sin_family = AF_INET, - .in.sin_port = htobe16(port), - .in.sin_addr.s_addr = address, - }; - int r; - - assert(s >= 0); - assert(packet); - assert(len); - - r = sendto(s, packet, len, 0, &dest.sa, sizeof(dest.in)); - if (r < 0) - return -errno; - - return 0; -} diff --git a/src/libsystemd-network/dhcp-option.c b/src/libsystemd-network/dhcp-option.c deleted file mode 100644 index b6110c5f16..0000000000 --- a/src/libsystemd-network/dhcp-option.c +++ /dev/null @@ -1,253 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <stdio.h> - -#include "dhcp-internal.h" - -static int option_append(uint8_t options[], size_t size, size_t *offset, - uint8_t code, size_t optlen, const void *optval) { - assert(options); - assert(offset); - - if (code != DHCP_OPTION_END) - /* always make sure there is space for an END option */ - size --; - - switch (code) { - - case DHCP_OPTION_PAD: - case DHCP_OPTION_END: - if (size < *offset + 1) - return -ENOBUFS; - - options[*offset] = code; - *offset += 1; - break; - - default: - if (size < *offset + optlen + 2) - return -ENOBUFS; - - options[*offset] = code; - options[*offset + 1] = optlen; - - if (optlen) { - assert(optval); - - memcpy(&options[*offset + 2], optval, optlen); - } - - *offset += optlen + 2; - - break; - } - - return 0; -} - -int dhcp_option_append(DHCPMessage *message, size_t size, size_t *offset, - uint8_t overload, - uint8_t code, size_t optlen, const void *optval) { - size_t file_offset = 0, sname_offset =0; - bool file, sname; - int r; - - assert(message); - assert(offset); - - file = overload & DHCP_OVERLOAD_FILE; - sname = overload & DHCP_OVERLOAD_SNAME; - - if (*offset < size) { - /* still space in the options array */ - r = option_append(message->options, size, offset, code, optlen, optval); - if (r >= 0) - return 0; - else if (r == -ENOBUFS && (file || sname)) { - /* did not fit, but we have more buffers to try - close the options array and move the offset to its end */ - r = option_append(message->options, size, offset, DHCP_OPTION_END, 0, NULL); - if (r < 0) - return r; - - *offset = size; - } else - return r; - } - - if (overload & DHCP_OVERLOAD_FILE) { - file_offset = *offset - size; - - if (file_offset < sizeof(message->file)) { - /* still space in the 'file' array */ - r = option_append(message->file, sizeof(message->file), &file_offset, code, optlen, optval); - if (r >= 0) { - *offset = size + file_offset; - return 0; - } else if (r == -ENOBUFS && sname) { - /* did not fit, but we have more buffers to try - close the file array and move the offset to its end */ - r = option_append(message->options, size, offset, DHCP_OPTION_END, 0, NULL); - if (r < 0) - return r; - - *offset = size + sizeof(message->file); - } else - return r; - } - } - - if (overload & DHCP_OVERLOAD_SNAME) { - sname_offset = *offset - size - (file ? sizeof(message->file) : 0); - - if (sname_offset < sizeof(message->sname)) { - /* still space in the 'sname' array */ - r = option_append(message->sname, sizeof(message->sname), &sname_offset, code, optlen, optval); - if (r >= 0) { - *offset = size + (file ? sizeof(message->file) : 0) + sname_offset; - return 0; - } else { - /* no space, or other error, give up */ - return r; - } - } - } - - return -ENOBUFS; -} - -static int parse_options(const uint8_t options[], size_t buflen, uint8_t *overload, - uint8_t *message_type, dhcp_option_cb_t cb, - void *user_data) { - uint8_t code, len; - size_t offset = 0; - - while (offset < buflen) { - switch (options[offset]) { - case DHCP_OPTION_PAD: - offset++; - - break; - - case DHCP_OPTION_END: - return 0; - - case DHCP_OPTION_MESSAGE_TYPE: - if (buflen < offset + 3) - return -ENOBUFS; - - len = options[++offset]; - if (len != 1) - return -EINVAL; - - if (message_type) - *message_type = options[++offset]; - else - offset++; - - offset++; - - break; - - case DHCP_OPTION_OVERLOAD: - if (buflen < offset + 3) - return -ENOBUFS; - - len = options[++offset]; - if (len != 1) - return -EINVAL; - - if (overload) - *overload = options[++offset]; - else - offset++; - - offset++; - - break; - - default: - if (buflen < offset + 3) - return -ENOBUFS; - - code = options[offset]; - len = options[++offset]; - - if (buflen < ++offset + len) - return -EINVAL; - - if (cb) - cb(code, len, &options[offset], user_data); - - offset += len; - - break; - } - } - - if (offset < buflen) - return -EINVAL; - - return 0; -} - -int dhcp_option_parse(DHCPMessage *message, size_t len, - dhcp_option_cb_t cb, void *user_data) { - uint8_t overload = 0; - uint8_t message_type = 0; - int r; - - if (!message) - return -EINVAL; - - if (len < sizeof(DHCPMessage)) - return -EINVAL; - - len -= sizeof(DHCPMessage); - - r = parse_options(message->options, len, &overload, &message_type, - cb, user_data); - if (r < 0) - return r; - - if (overload & DHCP_OVERLOAD_FILE) { - r = parse_options(message->file, sizeof(message->file), - NULL, &message_type, cb, user_data); - if (r < 0) - return r; - } - - if (overload & DHCP_OVERLOAD_SNAME) { - r = parse_options(message->sname, sizeof(message->sname), - NULL, &message_type, cb, user_data); - if (r < 0) - return r; - } - - if (message_type) - return message_type; - - return -ENOMSG; -} diff --git a/src/libsystemd-network/dhcp-packet.c b/src/libsystemd-network/dhcp-packet.c deleted file mode 100644 index cd7f5095ca..0000000000 --- a/src/libsystemd-network/dhcp-packet.c +++ /dev/null @@ -1,192 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> -#include <net/ethernet.h> -#include <net/if_arp.h> - - -#include "dhcp-protocol.h" -#include "dhcp-internal.h" - -#define DHCP_CLIENT_MIN_OPTIONS_SIZE 312 - -int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid, - uint8_t type, uint16_t arp_type, size_t optlen, - size_t *optoffset) { - size_t offset = 0; - int r; - - assert(op == BOOTREQUEST || op == BOOTREPLY); - assert(arp_type == ARPHRD_ETHER || arp_type == ARPHRD_INFINIBAND); - - message->op = op; - message->htype = arp_type; - message->hlen = (arp_type == ARPHRD_ETHER) ? ETHER_ADDR_LEN : 0; - message->xid = htobe32(xid); - message->magic = htobe32(DHCP_MAGIC_COOKIE); - - r = dhcp_option_append(message, optlen, &offset, 0, - DHCP_OPTION_MESSAGE_TYPE, 1, &type); - if (r < 0) - return r; - - *optoffset = offset; - - return 0; -} - -uint16_t dhcp_packet_checksum(uint8_t *buf, size_t len) { - uint64_t *buf_64 = (uint64_t*)buf; - uint64_t *end_64 = buf_64 + (len / sizeof(uint64_t)); - uint64_t sum = 0; - - /* See RFC1071 */ - - while (buf_64 < end_64) { - sum += *buf_64; - if (sum < *buf_64) - /* wrap around in one's complement */ - sum++; - - buf_64 ++; - } - - if (len % sizeof(uint64_t)) { - /* If the buffer is not aligned to 64-bit, we need - to zero-pad the last few bytes and add them in */ - uint64_t buf_tail = 0; - - memcpy(&buf_tail, buf_64, len % sizeof(uint64_t)); - - sum += buf_tail; - if (sum < buf_tail) - /* wrap around */ - sum++; - } - - while (sum >> 16) - sum = (sum & 0xffff) + (sum >> 16); - - return ~sum; -} - -void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr, - uint16_t source_port, be32_t destination_addr, - uint16_t destination_port, uint16_t len) { - packet->ip.version = IPVERSION; - packet->ip.ihl = DHCP_IP_SIZE / 4; - packet->ip.tot_len = htobe16(len); - - packet->ip.tos = IPTOS_CLASS_CS6; - - packet->ip.protocol = IPPROTO_UDP; - packet->ip.saddr = source_addr; - packet->ip.daddr = destination_addr; - - packet->udp.source = htobe16(source_port); - packet->udp.dest = htobe16(destination_port); - - packet->udp.len = htobe16(len - DHCP_IP_SIZE); - - packet->ip.check = packet->udp.len; - packet->udp.check = dhcp_packet_checksum((uint8_t*)&packet->ip.ttl, len - 8); - - packet->ip.ttl = IPDEFTTL; - packet->ip.check = 0; - packet->ip.check = dhcp_packet_checksum((uint8_t*)&packet->ip, DHCP_IP_SIZE); -} - -int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum) { - size_t hdrlen; - - assert(packet); - - /* IP */ - - if (packet->ip.version != IPVERSION) { - log_debug("ignoring packet: not IPv4"); - return -EINVAL; - } - - if (packet->ip.ihl < 5) { - log_debug("ignoring packet: IPv4 IHL (%u words) invalid", - packet->ip.ihl); - return -EINVAL; - } - - hdrlen = packet->ip.ihl * 4; - if (hdrlen < 20) { - log_debug("ignoring packet: IPv4 IHL (%zu bytes) " - "smaller than minimum (20 bytes)", hdrlen); - return -EINVAL; - } - - if (len < hdrlen) { - log_debug("ignoring packet: packet (%zu bytes) " - "smaller than expected (%zu) by IP header", len, - hdrlen); - return -EINVAL; - } - - /* UDP */ - - if (packet->ip.protocol != IPPROTO_UDP) { - log_debug("ignoring packet: not UDP"); - return -EINVAL; - } - - if (len < hdrlen + be16toh(packet->udp.len)) { - log_debug("ignoring packet: packet (%zu bytes) " - "smaller than expected (%zu) by UDP header", len, - hdrlen + be16toh(packet->udp.len)); - return -EINVAL; - } - - if (be16toh(packet->udp.dest) != DHCP_PORT_CLIENT) { - log_debug("ignoring packet: to port %u, which " - "is not the DHCP client port (%u)", - be16toh(packet->udp.dest), DHCP_PORT_CLIENT); - return -EINVAL; - } - - /* checksums - computing these is relatively expensive, so only do it - if all the other checks have passed - */ - - if (dhcp_packet_checksum((uint8_t*)&packet->ip, hdrlen)) { - log_debug("ignoring packet: invalid IP checksum"); - return -EINVAL; - } - - if (checksum && packet->udp.check) { - packet->ip.check = packet->udp.len; - packet->ip.ttl = 0; - - if (dhcp_packet_checksum((uint8_t*)&packet->ip.ttl, - be16toh(packet->udp.len) + 12)) { - log_debug("ignoring packet: invalid UDP checksum"); - return -EINVAL; - } - } - - return 0; -} diff --git a/src/libsystemd-network/dhcp-protocol.h b/src/libsystemd-network/dhcp-protocol.h deleted file mode 100644 index abca9422c5..0000000000 --- a/src/libsystemd-network/dhcp-protocol.h +++ /dev/null @@ -1,141 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/udp.h> -#include <netinet/ip.h> -#include <stdint.h> - -#include "macro.h" -#include "sparse-endian.h" - -struct DHCPMessage { - uint8_t op; - uint8_t htype; - uint8_t hlen; - uint8_t hops; - be32_t xid; - be16_t secs; - be16_t flags; - be32_t ciaddr; - be32_t yiaddr; - be32_t siaddr; - be32_t giaddr; - uint8_t chaddr[16]; - uint8_t sname[64]; - uint8_t file[128]; - be32_t magic; - uint8_t options[0]; -} _packed_; - -typedef struct DHCPMessage DHCPMessage; - -struct DHCPPacket { - struct iphdr ip; - struct udphdr udp; - DHCPMessage dhcp; -} _packed_; - -typedef struct DHCPPacket DHCPPacket; - -#define DHCP_IP_SIZE (int32_t)(sizeof(struct iphdr)) -#define DHCP_IP_UDP_SIZE (int32_t)(sizeof(struct udphdr) + DHCP_IP_SIZE) -#define DHCP_MESSAGE_SIZE (int32_t)(sizeof(DHCPMessage)) -#define DHCP_DEFAULT_MIN_SIZE 576 /* the minimum internet hosts must be able to receive */ -#define DHCP_MIN_OPTIONS_SIZE DHCP_DEFAULT_MIN_SIZE - DHCP_IP_UDP_SIZE - DHCP_MESSAGE_SIZE -#define DHCP_MAGIC_COOKIE (uint32_t)(0x63825363) - -enum { - DHCP_PORT_SERVER = 67, - DHCP_PORT_CLIENT = 68, -}; - -enum DHCPState { - DHCP_STATE_INIT = 0, - DHCP_STATE_SELECTING = 1, - DHCP_STATE_INIT_REBOOT = 2, - DHCP_STATE_REBOOTING = 3, - DHCP_STATE_REQUESTING = 4, - DHCP_STATE_BOUND = 5, - DHCP_STATE_RENEWING = 6, - DHCP_STATE_REBINDING = 7, - DHCP_STATE_STOPPED = 8, -}; - -typedef enum DHCPState DHCPState; - -enum { - BOOTREQUEST = 1, - BOOTREPLY = 2, -}; - -enum { - DHCP_DISCOVER = 1, - DHCP_OFFER = 2, - DHCP_REQUEST = 3, - DHCP_DECLINE = 4, - DHCP_ACK = 5, - DHCP_NAK = 6, - DHCP_RELEASE = 7, - DHCP_INFORM = 8, - DHCP_FORCERENEW = 9, -}; - -enum { - DHCP_OVERLOAD_FILE = 1, - DHCP_OVERLOAD_SNAME = 2, -}; - -enum { - DHCP_OPTION_PAD = 0, - DHCP_OPTION_SUBNET_MASK = 1, - DHCP_OPTION_TIME_OFFSET = 2, - DHCP_OPTION_ROUTER = 3, - DHCP_OPTION_DOMAIN_NAME_SERVER = 6, - DHCP_OPTION_HOST_NAME = 12, - DHCP_OPTION_BOOT_FILE_SIZE = 13, - DHCP_OPTION_DOMAIN_NAME = 15, - DHCP_OPTION_ROOT_PATH = 17, - DHCP_OPTION_ENABLE_IP_FORWARDING = 19, - DHCP_OPTION_ENABLE_IP_FORWARDING_NL = 20, - DHCP_OPTION_POLICY_FILTER = 21, - DHCP_OPTION_INTERFACE_MDR = 22, - DHCP_OPTION_INTERFACE_TTL = 23, - DHCP_OPTION_INTERFACE_MTU_AGING_TIMEOUT = 24, - DHCP_OPTION_INTERFACE_MTU = 26, - DHCP_OPTION_BROADCAST = 28, - DHCP_OPTION_STATIC_ROUTE = 33, - DHCP_OPTION_NTP_SERVER = 42, - DHCP_OPTION_REQUESTED_IP_ADDRESS = 50, - DHCP_OPTION_IP_ADDRESS_LEASE_TIME = 51, - DHCP_OPTION_OVERLOAD = 52, - DHCP_OPTION_MESSAGE_TYPE = 53, - DHCP_OPTION_SERVER_IDENTIFIER = 54, - DHCP_OPTION_PARAMETER_REQUEST_LIST = 55, - DHCP_OPTION_MAXIMUM_MESSAGE_SIZE = 57, - DHCP_OPTION_RENEWAL_T1_TIME = 58, - DHCP_OPTION_REBINDING_T2_TIME = 59, - DHCP_OPTION_VENDOR_CLASS_IDENTIFIER = 60, - DHCP_OPTION_CLIENT_IDENTIFIER = 61, - DHCP_OPTION_CLASSLESS_STATIC_ROUTE = 121, - DHCP_OPTION_END = 255, -}; diff --git a/src/libsystemd-network/dhcp-server-internal.h b/src/libsystemd-network/dhcp-server-internal.h deleted file mode 100644 index 58750c4418..0000000000 --- a/src/libsystemd-network/dhcp-server-internal.h +++ /dev/null @@ -1,93 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -#include "sd-event.h" -#include "sd-dhcp-server.h" - -#include "hashmap.h" -#include "refcnt.h" -#include "util.h" -#include "log.h" - -#include "dhcp-internal.h" - -typedef struct DHCPClientId { - size_t length; - uint8_t *data; -} DHCPClientId; - -typedef struct DHCPLease { - DHCPClientId client_id; - - be32_t address; - be32_t gateway; - uint8_t chaddr[16]; - usec_t expiration; -} DHCPLease; - -struct sd_dhcp_server { - RefCount n_ref; - - sd_event *event; - int event_priority; - sd_event_source *receive_message; - int fd; - int fd_raw; - - int index; - be32_t address; - be32_t netmask; - be32_t pool_start; - size_t pool_size; - size_t next_offer; - - Hashmap *leases_by_client_id; - DHCPLease **bound_leases; -}; - -typedef struct DHCPRequest { - /* received message */ - DHCPMessage *message; - - /* options */ - DHCPClientId client_id; - size_t max_optlen; - be32_t server_id; - be32_t requested_ip; - int lifetime; -} DHCPRequest; - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_server*, sd_dhcp_server_unref); -#define _cleanup_dhcp_server_unref_ _cleanup_(sd_dhcp_server_unrefp) - -#define log_dhcp_server(client, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "DHCP SERVER: " fmt, ##__VA_ARGS__) - -int dhcp_server_handle_message(sd_dhcp_server *server, DHCPMessage *message, - size_t length); -int dhcp_server_send_packet(sd_dhcp_server *server, - DHCPRequest *req, DHCPPacket *packet, - int type, size_t optoffset); - -unsigned long client_id_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]); -int client_id_compare_func(const void *_a, const void *_b); diff --git a/src/libsystemd-network/dhcp6-internal.h b/src/libsystemd-network/dhcp6-internal.h deleted file mode 100644 index 4f54ad89a6..0000000000 --- a/src/libsystemd-network/dhcp6-internal.h +++ /dev/null @@ -1,79 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <net/ethernet.h> -#include <netinet/in.h> - -#include "sparse-endian.h" -#include "sd-event.h" -#include "list.h" -#include "macro.h" - -typedef struct DHCP6Address DHCP6Address; - -struct DHCP6Address { - LIST_FIELDS(DHCP6Address, addresses); - - struct { - struct in6_addr address; - be32_t lifetime_preferred; - be32_t lifetime_valid; - } iaaddr _packed_; -}; - -struct DHCP6IA { - uint16_t type; - struct { - be32_t id; - be32_t lifetime_t1; - be32_t lifetime_t2; - } _packed_; - sd_event_source *timeout_t1; - sd_event_source *timeout_t2; - - LIST_HEAD(DHCP6Address, addresses); -}; - -typedef struct DHCP6IA DHCP6IA; - -#define log_dhcp6_client(p, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "DHCPv6 CLIENT: " fmt, ##__VA_ARGS__) - -int dhcp_network_icmp6_bind_router_solicitation(int index); -int dhcp_network_icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr); - -int dhcp6_option_append(uint8_t **buf, size_t *buflen, uint16_t code, - size_t optlen, const void *optval); -int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, DHCP6IA *ia); -int dhcp6_option_parse(uint8_t **buf, size_t *buflen, uint16_t *optcode, - size_t *optlen, uint8_t **optvalue); -int dhcp6_option_parse_ia(uint8_t **buf, size_t *buflen, uint16_t iatype, - DHCP6IA *ia); - -int dhcp6_network_bind_udp_socket(int index, struct in6_addr *address); -int dhcp6_network_send_udp_socket(int s, struct in6_addr *address, - const void *packet, size_t len); - -const char *dhcp6_message_type_to_string(int s) _const_; -int dhcp6_message_type_from_string(const char *s) _pure_; -const char *dhcp6_message_status_to_string(int s) _const_; -int dhcp6_message_status_from_string(const char *s) _pure_; diff --git a/src/libsystemd-network/dhcp6-lease-internal.h b/src/libsystemd-network/dhcp6-lease-internal.h deleted file mode 100644 index 109e0f4f21..0000000000 --- a/src/libsystemd-network/dhcp6-lease-internal.h +++ /dev/null @@ -1,62 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdint.h> - -#include "refcnt.h" - -#include "sd-dhcp6-lease.h" -#include "dhcp6-internal.h" - -struct sd_dhcp6_lease { - RefCount n_ref; - - uint8_t *serverid; - size_t serverid_len; - uint8_t preference; - bool rapid_commit; - - DHCP6IA ia; - - DHCP6Address *addr_iter; -}; - -int dhcp6_lease_clear_timers(DHCP6IA *ia); -int dhcp6_lease_ia_rebind_expire(const DHCP6IA *ia, uint32_t *expire); -DHCP6IA *dhcp6_lease_free_ia(DHCP6IA *ia); - -int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id, - size_t len); -int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **id, size_t *len); -int dhcp6_lease_set_preference(sd_dhcp6_lease *lease, uint8_t preference); -int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *preference); -int dhcp6_lease_set_rapid_commit(sd_dhcp6_lease *lease); -int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease *lease, bool *rapid_commit); - -int dhcp6_lease_get_iaid(sd_dhcp6_lease *lease, be32_t *iaid); - -int dhcp6_lease_new(sd_dhcp6_lease **ret); - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp6_lease*, sd_dhcp6_lease_unref); -#define _cleanup_dhcp6_lease_free_ _cleanup_(sd_dhcp6_lease_unrefp) diff --git a/src/libsystemd-network/dhcp6-network.c b/src/libsystemd-network/dhcp6-network.c deleted file mode 100644 index fe56c10273..0000000000 --- a/src/libsystemd-network/dhcp6-network.c +++ /dev/null @@ -1,194 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <string.h> -#include <linux/if_packet.h> -#include <stdio.h> -#include <unistd.h> -#include <netinet/ip6.h> -#include <netinet/icmp6.h> -#include <netinet/in.h> - -#include "socket-util.h" - -#include "dhcp6-internal.h" -#include "dhcp6-protocol.h" - -#define IN6ADDR_ALL_ROUTERS_MULTICAST_INIT \ - { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 } } } - -#define IN6ADDR_ALL_NODES_MULTICAST_INIT \ - { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } } - -int dhcp_network_icmp6_bind_router_solicitation(int index) -{ - struct icmp6_filter filter = { }; - struct ipv6_mreq mreq = { - .ipv6mr_multiaddr = IN6ADDR_ALL_NODES_MULTICAST_INIT, - .ipv6mr_interface = index, - }; - _cleanup_close_ int s = -1; - int r, zero = 0, hops = 255; - - s = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC | SOCK_NONBLOCK, - IPPROTO_ICMPV6); - if (s < 0) - return -errno; - - ICMP6_FILTER_SETBLOCKALL(&filter); - ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter); - r = setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filter, - sizeof(filter)); - if (r < 0) - return -errno; - - /* RFC 3315, section 6.7, bullet point 2 may indicate that an - IPV6_PKTINFO socket option also applies for ICMPv6 multicast. - Empirical experiments indicates otherwise and therefore an - IPV6_MULTICAST_IF socket option is used here instead */ - r = setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &index, - sizeof(index)); - if (r < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &zero, - sizeof(zero)); - if (r < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, - sizeof(hops)); - if (r < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &mreq, - sizeof(mreq)); - if (r < 0) - return -errno; - - r = s; - s = -1; - return r; -} - -int dhcp_network_icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) -{ - struct sockaddr_in6 dst = { - .sin6_family = AF_INET6, - .sin6_addr = IN6ADDR_ALL_ROUTERS_MULTICAST_INIT, - }; - struct { - struct nd_router_solicit rs; - struct nd_opt_hdr rs_opt; - struct ether_addr rs_opt_mac; - } _packed_ rs = { - .rs.nd_rs_type = ND_ROUTER_SOLICIT, - }; - struct iovec iov[1] = { - { &rs, }, - }; - struct msghdr msg = { - .msg_name = &dst, - .msg_namelen = sizeof(dst), - .msg_iov = iov, - .msg_iovlen = 1, - }; - int r; - - if (ether_addr) { - memcpy(&rs.rs_opt_mac, ether_addr, ETH_ALEN); - rs.rs_opt.nd_opt_type = ND_OPT_SOURCE_LINKADDR; - rs.rs_opt.nd_opt_len = 1; - iov[0].iov_len = sizeof(rs); - } else - iov[0].iov_len = sizeof(rs.rs); - - r = sendmsg(s, &msg, 0); - if (r < 0) - return -errno; - - return 0; -} - -int dhcp6_network_bind_udp_socket(int index, struct in6_addr *local_address) { - struct in6_pktinfo pktinfo = { - .ipi6_ifindex = index, - }; - union sockaddr_union src = { - .in6.sin6_family = AF_INET6, - .in6.sin6_port = htobe16(DHCP6_PORT_CLIENT), - .in6.sin6_addr = IN6ADDR_ANY_INIT, - }; - _cleanup_close_ int s = -1; - int r, off = 0, on = 1; - - if (local_address) - memcpy(&src.in6.sin6_addr, local_address, - sizeof(src.in6.sin6_addr)); - - s = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, - IPPROTO_UDP); - if (s < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &pktinfo, - sizeof(pktinfo)); - if (r < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)); - if (r < 0) - return -errno; - - r = setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &off, sizeof(off)); - if (r < 0) - return -errno; - - r = bind(s, &src.sa, sizeof(src.in6)); - if (r < 0) - return -errno; - - r = s; - s = -1; - return r; -} - -int dhcp6_network_send_udp_socket(int s, struct in6_addr *server_address, - const void *packet, size_t len) { - union sockaddr_union dest = { - .in6.sin6_family = AF_INET6, - .in6.sin6_port = htobe16(DHCP6_PORT_SERVER), - }; - int r; - - assert(server_address); - - memcpy(&dest.in6.sin6_addr, server_address, sizeof(dest.in6.sin6_addr)); - - r = sendto(s, packet, len, 0, &dest.sa, sizeof(dest.in6)); - if (r < 0) - return -errno; - - return 0; -} diff --git a/src/libsystemd-network/dhcp6-option.c b/src/libsystemd-network/dhcp6-option.c deleted file mode 100644 index ea863f45e4..0000000000 --- a/src/libsystemd-network/dhcp6-option.c +++ /dev/null @@ -1,319 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/in.h> -#include <errno.h> -#include <string.h> - -#include "sparse-endian.h" -#include "unaligned.h" -#include "util.h" - -#include "dhcp6-internal.h" -#include "dhcp6-protocol.h" - -#define DHCP6_OPTION_IA_NA_LEN 12 -#define DHCP6_OPTION_IA_TA_LEN 4 - -typedef struct DHCP6Option { - be16_t code; - be16_t len; - uint8_t data[]; -} _packed_ DHCP6Option; - -static int option_append_hdr(uint8_t **buf, size_t *buflen, uint16_t optcode, - size_t optlen) { - DHCP6Option *option = (DHCP6Option*) *buf; - - assert_return(buf, -EINVAL); - assert_return(*buf, -EINVAL); - assert_return(buflen, -EINVAL); - - if (optlen > 0xffff || *buflen < optlen + sizeof(DHCP6Option)) - return -ENOBUFS; - - option->code = htobe16(optcode); - option->len = htobe16(optlen); - - *buf += sizeof(DHCP6Option); - *buflen -= sizeof(DHCP6Option); - - return 0; -} - -int dhcp6_option_append(uint8_t **buf, size_t *buflen, uint16_t code, - size_t optlen, const void *optval) { - int r; - - assert_return(optval || optlen == 0, -EINVAL); - - r = option_append_hdr(buf, buflen, code, optlen); - if (r < 0) - return r; - - if (optval) - memcpy(*buf, optval, optlen); - - *buf += optlen; - *buflen -= optlen; - - return 0; -} - -int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, DHCP6IA *ia) { - uint16_t len; - uint8_t *ia_hdr; - size_t ia_buflen, ia_addrlen = 0; - DHCP6Address *addr; - int r; - - assert_return(buf && *buf && buflen && ia, -EINVAL); - - switch (ia->type) { - case DHCP6_OPTION_IA_NA: - len = DHCP6_OPTION_IA_NA_LEN; - break; - - case DHCP6_OPTION_IA_TA: - len = DHCP6_OPTION_IA_TA_LEN; - break; - - default: - return -EINVAL; - } - - if (*buflen < len) - return -ENOBUFS; - - ia_hdr = *buf; - ia_buflen = *buflen; - - *buf += sizeof(DHCP6Option); - *buflen -= sizeof(DHCP6Option); - - memcpy(*buf, &ia->id, len); - - *buf += len; - *buflen -= len; - - LIST_FOREACH(addresses, addr, ia->addresses) { - r = option_append_hdr(buf, buflen, DHCP6_OPTION_IAADDR, - sizeof(addr->iaaddr)); - if (r < 0) - return r; - - memcpy(*buf, &addr->iaaddr, sizeof(addr->iaaddr)); - - *buf += sizeof(addr->iaaddr); - *buflen -= sizeof(addr->iaaddr); - - ia_addrlen += sizeof(DHCP6Option) + sizeof(addr->iaaddr); - } - - r = option_append_hdr(&ia_hdr, &ia_buflen, ia->type, len + ia_addrlen); - if (r < 0) - return r; - - return 0; -} - - -static int option_parse_hdr(uint8_t **buf, size_t *buflen, uint16_t *optcode, size_t *optlen) { - DHCP6Option *option = (DHCP6Option*) *buf; - uint16_t len; - - assert_return(buf, -EINVAL); - assert_return(optcode, -EINVAL); - assert_return(optlen, -EINVAL); - - if (*buflen < sizeof(DHCP6Option)) - return -ENOMSG; - - len = be16toh(option->len); - - if (len > *buflen) - return -ENOMSG; - - *optcode = be16toh(option->code); - *optlen = len; - - *buf += 4; - *buflen -= 4; - - return 0; -} - -int dhcp6_option_parse(uint8_t **buf, size_t *buflen, uint16_t *optcode, - size_t *optlen, uint8_t **optvalue) { - int r; - - assert_return(buf && buflen && optcode && optlen && optvalue, -EINVAL); - - r = option_parse_hdr(buf, buflen, optcode, optlen); - if (r < 0) - return r; - - if (*optlen > *buflen) - return -ENOBUFS; - - *optvalue = *buf; - *buflen -= *optlen; - *buf += *optlen; - - return 0; -} - -int dhcp6_option_parse_ia(uint8_t **buf, size_t *buflen, uint16_t iatype, - DHCP6IA *ia) { - int r; - uint16_t opt, status; - size_t optlen; - size_t iaaddr_offset; - DHCP6Address *addr; - uint32_t lt_t1, lt_t2, lt_valid, lt_pref, lt_min = ~0; - - assert_return(ia, -EINVAL); - assert_return(!ia->addresses, -EINVAL); - - switch (iatype) { - case DHCP6_OPTION_IA_NA: - - if (*buflen < DHCP6_OPTION_IA_NA_LEN + sizeof(DHCP6Option) + - sizeof(addr->iaaddr)) { - r = -ENOBUFS; - goto error; - } - - iaaddr_offset = DHCP6_OPTION_IA_NA_LEN; - memcpy(&ia->id, *buf, iaaddr_offset); - - lt_t1 = be32toh(ia->lifetime_t1); - lt_t2 = be32toh(ia->lifetime_t2); - - if (lt_t1 && lt_t2 && lt_t1 > lt_t2) { - log_dhcp6_client(client, "IA T1 %ds > T2 %ds", - lt_t1, lt_t2); - r = -EINVAL; - goto error; - } - - break; - - case DHCP6_OPTION_IA_TA: - if (*buflen < DHCP6_OPTION_IA_TA_LEN + sizeof(DHCP6Option) + - sizeof(addr->iaaddr)) { - r = -ENOBUFS; - goto error; - } - - iaaddr_offset = DHCP6_OPTION_IA_TA_LEN; - memcpy(&ia->id, *buf, iaaddr_offset); - - ia->lifetime_t1 = 0; - ia->lifetime_t2 = 0; - - break; - - default: - r = -ENOMSG; - goto error; - } - - ia->type = iatype; - - *buflen -= iaaddr_offset; - *buf += iaaddr_offset; - - while ((r = option_parse_hdr(buf, buflen, &opt, &optlen)) >= 0) { - - switch (opt) { - case DHCP6_OPTION_IAADDR: - - addr = new0(DHCP6Address, 1); - if (!addr) { - r = -ENOMEM; - goto error; - } - - LIST_INIT(addresses, addr); - - memcpy(&addr->iaaddr, *buf, sizeof(addr->iaaddr)); - - lt_valid = be32toh(addr->iaaddr.lifetime_valid); - lt_pref = be32toh(addr->iaaddr.lifetime_valid); - - if (!lt_valid || lt_pref > lt_valid) { - log_dhcp6_client(client, "IA preferred %ds > valid %ds", - lt_pref, lt_valid); - free(addr); - } else { - LIST_PREPEND(addresses, ia->addresses, addr); - if (lt_valid < lt_min) - lt_min = lt_valid; - } - - break; - - case DHCP6_OPTION_STATUS_CODE: - if (optlen < sizeof(status)) - break; - - status = (*buf)[0] << 8 | (*buf)[1]; - if (status) { - log_dhcp6_client(client, "IA status %d", - status); - r = -EINVAL; - goto error; - } - - break; - - default: - log_dhcp6_client(client, "Unknown IA option %d", opt); - break; - } - - *buflen -= optlen; - *buf += optlen; - } - - if (r == -ENOMSG) - r = 0; - - if (!ia->lifetime_t1 && !ia->lifetime_t2) { - lt_t1 = lt_min / 2; - lt_t2 = lt_min / 10 * 8; - ia->lifetime_t1 = htobe32(lt_t1); - ia->lifetime_t2 = htobe32(lt_t2); - - log_dhcp6_client(client, "Computed IA T1 %ds and T2 %ds as both were zero", - lt_t1, lt_t2); - } - - if (*buflen) - r = -ENOMSG; - -error: - *buf += *buflen; - *buflen = 0; - - return r; -} diff --git a/src/libsystemd-network/dhcp6-protocol.h b/src/libsystemd-network/dhcp6-protocol.h deleted file mode 100644 index 3e0f339237..0000000000 --- a/src/libsystemd-network/dhcp6-protocol.h +++ /dev/null @@ -1,144 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/ip6.h> -#include <netinet/udp.h> - -#include "macro.h" -#include "sparse-endian.h" - -struct DHCP6Message { - union { - struct { - uint8_t type; - uint8_t _pad[3]; - } _packed_; - be32_t transaction_id; - }; -} _packed_; - -typedef struct DHCP6Message DHCP6Message; - -#define DHCP6_MIN_OPTIONS_SIZE \ - 1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr) - -#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \ - { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } } - -enum { - DHCP6_PORT_SERVER = 547, - DHCP6_PORT_CLIENT = 546, -}; - -#define DHCP6_INF_TIMEOUT 1 * USEC_PER_SEC -#define DHCP6_INF_MAX_RT 120 * USEC_PER_SEC -#define DHCP6_SOL_MAX_DELAY 1 * USEC_PER_SEC -#define DHCP6_SOL_TIMEOUT 1 * USEC_PER_SEC -#define DHCP6_SOL_MAX_RT 120 * USEC_PER_SEC -#define DHCP6_REQ_TIMEOUT 1 * USEC_PER_SEC -#define DHCP6_REQ_MAX_RT 120 * USEC_PER_SEC -#define DHCP6_REQ_MAX_RC 10 -#define DHCP6_REN_TIMEOUT 10 * USEC_PER_SEC -#define DHCP6_REN_MAX_RT 600 * USEC_PER_SEC -#define DHCP6_REB_TIMEOUT 10 * USEC_PER_SEC -#define DHCP6_REB_MAX_RT 600 * USEC_PER_SEC - -enum { - DHCP6_DUID_LLT = 1, - DHCP6_DUID_EN = 2, - DHCP6_DUID_LL = 3, - DHCP6_DUID_UUID = 4, -}; - -enum DHCP6State { - DHCP6_STATE_STOPPED = 0, - DHCP6_STATE_INFORMATION_REQUEST = 1, - DHCP6_STATE_SOLICITATION = 2, - DHCP6_STATE_REQUEST = 3, - DHCP6_STATE_BOUND = 4, - DHCP6_STATE_RENEW = 5, - DHCP6_STATE_REBIND = 6, -}; - -enum { - DHCP6_SOLICIT = 1, - DHCP6_ADVERTISE = 2, - DHCP6_REQUEST = 3, - DHCP6_CONFIRM = 4, - DHCP6_RENEW = 5, - DHCP6_REBIND = 6, - DHCP6_REPLY = 7, - DHCP6_RELEASE = 8, - DHCP6_DECLINE = 9, - DHCP6_RECONFIGURE = 10, - DHCP6_INFORMATION_REQUEST = 11, - DHCP6_RELAY_FORW = 12, - DHCP6_RELAY_REPL = 13, - _DHCP6_MESSAGE_MAX = 14, -}; - -enum { - DHCP6_OPTION_CLIENTID = 1, - DHCP6_OPTION_SERVERID = 2, - DHCP6_OPTION_IA_NA = 3, - DHCP6_OPTION_IA_TA = 4, - DHCP6_OPTION_IAADDR = 5, - DHCP6_OPTION_ORO = 6, - DHCP6_OPTION_PREFERENCE = 7, - DHCP6_OPTION_ELAPSED_TIME = 8, - DHCP6_OPTION_RELAY_MSG = 9, - /* option code 10 is unassigned */ - DHCP6_OPTION_AUTH = 11, - DHCP6_OPTION_UNICAST = 12, - DHCP6_OPTION_STATUS_CODE = 13, - DHCP6_OPTION_RAPID_COMMIT = 14, - DHCP6_OPTION_USER_CLASS = 15, - DHCP6_OPTION_VENDOR_CLASS = 16, - DHCP6_OPTION_VENDOR_OPTS = 17, - DHCP6_OPTION_INTERFACE_ID = 18, - DHCP6_OPTION_RECONF_MSG = 19, - DHCP6_OPTION_RECONF_ACCEPT = 20, - - DHCP6_OPTION_DNS_SERVERS = 23, /* RFC 3646 */ - DHCP6_OPTION_DOMAIN_LIST = 24, /* RFC 3646 */ - - DHCP6_OPTION_SNTP_SERVERS = 31, /* RFC 4075 */ - - /* option code 35 is unassigned */ - - DHCP6_OPTION_NTP_SERVER = 56, /* RFC 5908 */ - - /* option codes 89-142 are unassigned */ - /* option codes 144-65535 are unassigned */ -}; - -enum { - DHCP6_STATUS_SUCCESS = 0, - DHCP6_STATUS_UNSPEC_FAIL = 1, - DHCP6_STATUS_NO_ADDRS_AVAIL = 2, - DHCP6_STATUS_NO_BINDING = 3, - DHCP6_STATUS_NOT_ON_LINK = 4, - DHCP6_STATUS_USE_MULTICAST = 5, - _DHCP6_STATUS_MAX = 6, -}; diff --git a/src/libsystemd-network/ipv4ll-internal.h b/src/libsystemd-network/ipv4ll-internal.h deleted file mode 100644 index ae0ce43985..0000000000 --- a/src/libsystemd-network/ipv4ll-internal.h +++ /dev/null @@ -1,38 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2014 Axis Communications AB. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/if_ether.h> - -#include "sparse-endian.h" -#include "socket-util.h" - -int arp_network_bind_raw_socket(int index, union sockaddr_union *link); -int arp_network_send_raw_socket(int fd, const union sockaddr_union *link, - const struct ether_arp *arp); - -void arp_packet_init(struct ether_arp *arp); -void arp_packet_probe(struct ether_arp *arp, be32_t pa, const struct ether_addr *ha); -void arp_packet_announcement(struct ether_arp *arp, be32_t pa, const struct ether_addr *ha); -int arp_packet_verify_headers(struct ether_arp *arp); - -#define log_ipv4ll(ll, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "IPv4LL: " fmt, ##__VA_ARGS__) diff --git a/src/libsystemd-network/ipv4ll-network.c b/src/libsystemd-network/ipv4ll-network.c deleted file mode 100644 index 93ffed408f..0000000000 --- a/src/libsystemd-network/ipv4ll-network.c +++ /dev/null @@ -1,91 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2014 Axis Communications AB. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <linux/filter.h> - -#include "util.h" -#include "ipv4ll-internal.h" - -int arp_network_send_raw_socket(int fd, const union sockaddr_union *link, - const struct ether_arp *arp) { - int r; - - assert(arp); - assert(link); - assert(fd >= 0); - - r = sendto(fd, arp, sizeof(struct ether_arp), 0, &link->sa, sizeof(link->ll)); - if (r < 0) - return -errno; - - return 0; -} - -int arp_network_bind_raw_socket(int ifindex, union sockaddr_union *link) { - - static const struct sock_filter filter[] = { - BPF_STMT(BPF_LD + BPF_W + BPF_LEN, 0), /* A <- packet length */ - BPF_JUMP(BPF_JMP + BPF_JGE + BPF_K, sizeof(struct ether_arp), 1, 0), /* packet >= arp packet ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(struct ether_arp, ea_hdr.ar_hrd)), /* A <- header */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ARPHRD_ETHER, 1, 0), /* header == ethernet ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(struct ether_arp, ea_hdr.ar_pro)), /* A <- protocol */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ETHERTYPE_IP, 1, 0), /* protocol == IP ? */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(struct ether_arp, ea_hdr.ar_op)), /* A <- operation */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ARPOP_REQUEST, 0, 1), /* protocol == request ? */ - BPF_STMT(BPF_RET + BPF_K, 65535), /* return all */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ARPOP_REPLY, 0, 1), /* protocol == reply ? */ - BPF_STMT(BPF_RET + BPF_K, 65535), /* return all */ - BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - }; - struct sock_fprog fprog = { - .len = ELEMENTSOF(filter), - .filter = (struct sock_filter*) filter - }; - _cleanup_close_ int s = -1; - int r; - - assert(ifindex > 0); - assert(link); - - s = socket(PF_PACKET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); - if (s < 0) - return -errno; - - r = setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)); - if (r < 0) - return -errno; - - link->ll.sll_family = AF_PACKET; - link->ll.sll_protocol = htons(ETH_P_ARP); - link->ll.sll_ifindex = ifindex; - link->ll.sll_halen = ETH_ALEN; - memset(link->ll.sll_addr, 0xff, ETH_ALEN); - - r = bind(s, &link->sa, sizeof(link->ll)); - if (r < 0) - return -errno; - - r = s; - s = -1; - - return r; -} diff --git a/src/libsystemd-network/ipv4ll-packet.c b/src/libsystemd-network/ipv4ll-packet.c deleted file mode 100644 index 2b6c73ab4b..0000000000 --- a/src/libsystemd-network/ipv4ll-packet.c +++ /dev/null @@ -1,71 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2014 Axis Communications AB. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ -#include <arpa/inet.h> - -#include "util.h" -#include "ipv4ll-internal.h" - -void arp_packet_init(struct ether_arp *arp) { - assert(arp); - - memzero(arp, sizeof(struct ether_arp)); - /* Header */ - arp->ea_hdr.ar_hrd = htons(ARPHRD_ETHER); /* HTYPE */ - arp->ea_hdr.ar_pro = htons(ETHERTYPE_IP); /* PTYPE */ - arp->ea_hdr.ar_hln = ETH_ALEN; /* HLEN */ - arp->ea_hdr.ar_pln = sizeof arp->arp_spa; /* PLEN */ - arp->ea_hdr.ar_op = htons(ARPOP_REQUEST); /* REQUEST */ -} - -void arp_packet_probe(struct ether_arp *arp, be32_t pa, const struct ether_addr *ha) { - assert(ha); - - arp_packet_init(arp); - memcpy(arp->arp_sha, ha, ETH_ALEN); - memcpy(arp->arp_tpa, &pa, sizeof(pa)); -} - -void arp_packet_announcement(struct ether_arp *arp, be32_t pa, const struct ether_addr *ha) { - assert(ha); - - arp_packet_init(arp); - memcpy(arp->arp_sha, ha, ETH_ALEN); - memcpy(arp->arp_tpa, &pa, sizeof(pa)); - memcpy(arp->arp_spa, &pa, sizeof(pa)); -} - -int arp_packet_verify_headers(struct ether_arp *arp) { - assert(arp); - - if (arp->ea_hdr.ar_hrd != htons(ARPHRD_ETHER)) { - log_ipv4ll(NULL, "ignoring packet: header is not ARPHRD_ETHER"); - return -EINVAL; - } - if (arp->ea_hdr.ar_pro != htons(ETHERTYPE_IP)) { - log_ipv4ll(NULL, "ignoring packet: protocol is not ETHERTYPE_IP"); - return -EINVAL; - } - if (arp->ea_hdr.ar_op != htons(ARPOP_REQUEST) && - arp->ea_hdr.ar_op != htons(ARPOP_REPLY)) { - log_ipv4ll(NULL, "ignoring packet: operation is not ARPOP_REQUEST or ARPOP_REPLY"); - return -EINVAL; - } - - return 0; -} diff --git a/src/libsystemd-network/lldp-internal.c b/src/libsystemd-network/lldp-internal.c deleted file mode 100644 index 0f354461f7..0000000000 --- a/src/libsystemd-network/lldp-internal.c +++ /dev/null @@ -1,533 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "lldp-internal.h" - -/* We store maximum 1K chassis entries */ -#define LLDP_MIB_MAX_CHASSIS 1024 - -/* Maximum Ports can be attached to any chassis */ -#define LLDP_MIB_MAX_PORT_PER_CHASSIS 32 - -int lldp_read_chassis_id(tlv_packet *tlv, - uint8_t *type, - uint16_t *length, - uint8_t **data) { - uint8_t subtype; - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_CHASSIS_ID); - if (r < 0) - goto out2; - - r = tlv_packet_read_u8(tlv, &subtype); - if (r < 0) - goto out1; - - switch (subtype) { - case LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS: - - r = tlv_packet_read_bytes(tlv, data, length); - if (r < 0) - goto out1; - - break; - default: - r = -EOPNOTSUPP; - break; - } - - *type = subtype; - - out1: - (void) lldp_tlv_packet_exit_container(tlv); - - out2: - return r; -} - -int lldp_read_port_id(tlv_packet *tlv, - uint8_t *type, - uint16_t *length, - uint8_t **data) { - uint8_t subtype; - char *s; - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_PORT_ID); - if (r < 0) - goto out2; - - r = tlv_packet_read_u8(tlv, &subtype); - if (r < 0) - goto out1; - - switch (subtype) { - case LLDP_PORT_SUBTYPE_PORT_COMPONENT: - case LLDP_PORT_SUBTYPE_INTERFACE_ALIAS: - case LLDP_PORT_SUBTYPE_INTERFACE_NAME: - case LLDP_PORT_SUBTYPE_LOCALLY_ASSIGNED: - - r = tlv_packet_read_string(tlv, &s, length); - if (r < 0) - goto out1; - - *data = (uint8_t *) s; - - break; - case LLDP_PORT_SUBTYPE_MAC_ADDRESS: - - r = tlv_packet_read_bytes(tlv, data, length); - if (r < 0) - goto out1; - - break; - default: - r = -EOPNOTSUPP; - break; - } - - *type = subtype; - - out1: - (void) lldp_tlv_packet_exit_container(tlv); - - out2: - return r; -} - -int lldp_read_ttl(tlv_packet *tlv, uint16_t *ttl) { - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_TTL); - if (r < 0) - goto out; - - r = tlv_packet_read_u16(tlv, ttl); - - (void) lldp_tlv_packet_exit_container(tlv); - - out: - return r; -} - -int lldp_read_system_name(tlv_packet *tlv, - uint16_t *length, - char **data) { - char *s; - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_SYSTEM_NAME); - if (r < 0) - return r; - - r = tlv_packet_read_string(tlv, &s, length); - if (r < 0) - goto out; - - *data = (char *) s; - - out: - (void) lldp_tlv_packet_exit_container(tlv); - - return r; -} - -int lldp_read_system_description(tlv_packet *tlv, - uint16_t *length, - char **data) { - char *s; - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_SYSTEM_DESCRIPTION); - if (r < 0) - return r; - - r = tlv_packet_read_string(tlv, &s, length); - if (r < 0) - goto out; - - *data = (char *) s; - - out: - (void) lldp_tlv_packet_exit_container(tlv); - - return r; -} - -int lldp_read_port_description(tlv_packet *tlv, - uint16_t *length, - char **data) { - char *s; - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_PORT_DESCRIPTION); - if (r < 0) - return r; - - r = tlv_packet_read_string(tlv, &s, length); - if (r < 0) - goto out; - - *data = (char *) s; - - out: - (void) lldp_tlv_packet_exit_container(tlv); - - return r; -} - -int lldp_read_system_capability(tlv_packet *tlv, uint16_t *data) { - int r; - - assert_return(tlv, -EINVAL); - - r = lldp_tlv_packet_enter_container(tlv, LLDP_TYPE_SYSTEM_CAPABILITIES); - if (r < 0) - return r; - - r = tlv_packet_read_u16(tlv, data); - if (r < 0) - goto out; - - return 0; - out: - - (void) lldp_tlv_packet_exit_container(tlv); - - return r; -} - -/* 10.5.5.2.2 mibUpdateObjects () - * The mibUpdateObjects () procedure updates the MIB objects corresponding to - * the TLVs contained in the received LLDPDU for the LLDP remote system - * indicated by the LLDP remote systems update process defined in 10.3.5 */ - -int lldp_mib_update_objects(lldp_chassis *c, tlv_packet *tlv) { - lldp_neighbour_port *p; - uint16_t length, ttl; - uint8_t *data; - uint8_t type; - int r; - - assert_return(c, -EINVAL); - assert_return(tlv, -EINVAL); - - r = lldp_read_port_id(tlv, &type, &length, &data); - if (r < 0) - return r; - - /* Update the packet if we already have */ - LIST_FOREACH(port, p, c->ports) { - - if ((p->type == type && p->length == length && !memcmp(p->data, data, p->length))) { - - r = lldp_read_ttl(tlv, &ttl); - if (r < 0) - return r; - - p->until = ttl * USEC_PER_SEC + now(clock_boottime_or_monotonic()); - - tlv_packet_free(p->packet); - p->packet = tlv; - - prioq_reshuffle(p->c->by_expiry, p, &p->prioq_idx); - - return 0; - } - } - - return -1; -} - -int lldp_mib_remove_objects(lldp_chassis *c, tlv_packet *tlv) { - lldp_neighbour_port *p, *q; - uint8_t *data; - uint16_t length; - uint8_t type; - int r; - - assert_return(c, -EINVAL); - assert_return(tlv, -EINVAL); - - r = lldp_read_port_id(tlv, &type, &length, &data); - if (r < 0) - return r; - - LIST_FOREACH_SAFE(port, p, q, c->ports) { - - /* Find the port */ - if (p->type == type && p->length == length && !memcmp(p->data, data, p->length)) { - lldp_neighbour_port_remove_and_free(p); - break; - } - } - - return 0; -} - -int lldp_mib_add_objects(Prioq *by_expiry, - Hashmap *neighbour_mib, - tlv_packet *tlv) { - _cleanup_lldp_neighbour_port_free_ lldp_neighbour_port *p = NULL; - _cleanup_lldp_chassis_free_ lldp_chassis *c = NULL; - lldp_chassis_id chassis_id; - bool new_chassis = false; - uint8_t subtype, *data; - uint16_t ttl, length; - int r; - - assert_return(by_expiry, -EINVAL); - assert_return(neighbour_mib, -EINVAL); - assert_return(tlv, -EINVAL); - - r = lldp_read_chassis_id(tlv, &subtype, &length, &data); - if (r < 0) - goto drop; - - r = lldp_read_ttl(tlv, &ttl); - if (r < 0) - goto drop; - - /* Make hash key */ - chassis_id.type = subtype; - chassis_id.length = length; - chassis_id.data = data; - - /* Try to find the Chassis */ - c = hashmap_get(neighbour_mib, &chassis_id); - if (!c) { - - /* Don't create chassis if ttl 0 is received . Silently drop it */ - if (ttl == 0) { - log_lldp("TTL value 0 received. Skiping Chassis creation."); - goto drop; - } - - /* Admission Control: Can we store this packet ? */ - if (hashmap_size(neighbour_mib) >= LLDP_MIB_MAX_CHASSIS) { - - log_lldp("Exceeding number of chassie: %d. Dropping ...", - hashmap_size(neighbour_mib)); - goto drop; - } - - r = lldp_chassis_new(tlv, by_expiry, neighbour_mib, &c); - if (r < 0) - goto drop; - - new_chassis = true; - - r = hashmap_put(neighbour_mib, &c->chassis_id, c); - if (r < 0) - goto drop; - - } else { - - /* When the TTL field is set to zero, the receiving LLDP agent is notified all - * system information associated with the LLDP agent/port is to be deleted */ - if (ttl == 0) { - log_lldp("TTL value 0 received . Deleting associated Port ..."); - - lldp_mib_remove_objects(c, tlv); - - c = NULL; - goto drop; - } - - /* if we already have this port just update it */ - r = lldp_mib_update_objects(c, tlv); - if (r >= 0) { - c = NULL; - return r; - } - - /* Admission Control: Can this port attached to the existing chassis ? */ - if (REFCNT_GET(c->n_ref) >= LLDP_MIB_MAX_PORT_PER_CHASSIS) { - log_lldp("Port limit reached. Chassis has: %d ports. Dropping ...", - REFCNT_GET(c->n_ref)); - - c = NULL; - goto drop; - } - } - - /* This is a new port */ - r = lldp_neighbour_port_new(c, tlv, &p); - if (r < 0) - goto drop; - - r = prioq_put(c->by_expiry, p, &p->prioq_idx); - if (r < 0) - goto drop; - - /* Attach new port to chassis */ - LIST_PREPEND(port, c->ports, p); - REFCNT_INC(c->n_ref); - - p = NULL; - c = NULL; - - return 0; - - drop: - tlv_packet_free(tlv); - - if (new_chassis) - hashmap_remove(neighbour_mib, &c->chassis_id); - - return r; -} - -void lldp_neighbour_port_remove_and_free(lldp_neighbour_port *p) { - lldp_chassis *c; - - assert(p); - assert(p->c); - - c = p->c; - - prioq_remove(c->by_expiry, p, &p->prioq_idx); - - LIST_REMOVE(port, c->ports, p); - lldp_neighbour_port_free(p); - - /* Drop the Chassis if no port is attached */ - if (REFCNT_DEC(c->n_ref) <= 1) { - hashmap_remove(c->neighbour_mib, &c->chassis_id); - lldp_chassis_free(c); - } -} - -void lldp_neighbour_port_free(lldp_neighbour_port *p) { - - if(!p) - return; - - tlv_packet_free(p->packet); - - free(p->data); - free(p); -} - -int lldp_neighbour_port_new(lldp_chassis *c, - tlv_packet *tlv, - lldp_neighbour_port **ret) { - _cleanup_lldp_neighbour_port_free_ lldp_neighbour_port *p = NULL; - uint16_t length, ttl; - uint8_t *data; - uint8_t type; - int r; - - assert(tlv); - - r = lldp_read_port_id(tlv, &type, &length, &data); - if (r < 0) - return r; - - r = lldp_read_ttl(tlv, &ttl); - if (r < 0) - return r; - - p = new0(lldp_neighbour_port, 1); - if (!p) - return -ENOMEM; - - p->c = c; - p->type = type; - p->length = length; - p->packet = tlv; - p->prioq_idx = PRIOQ_IDX_NULL; - p->until = ttl * USEC_PER_SEC + now(clock_boottime_or_monotonic()); - - p->data = memdup(data, length); - if (!p->data) - return -ENOMEM; - - *ret = p; - p = NULL; - - return 0; -} - -void lldp_chassis_free(lldp_chassis *c) { - - if (!c) - return; - - if (REFCNT_GET(c->n_ref) > 1) - return; - - free(c->chassis_id.data); - free(c); -} - -int lldp_chassis_new(tlv_packet *tlv, - Prioq *by_expiry, - Hashmap *neighbour_mib, - lldp_chassis **ret) { - _cleanup_lldp_chassis_free_ lldp_chassis *c = NULL; - uint16_t length; - uint8_t *data; - uint8_t type; - int r; - - assert(tlv); - - r = lldp_read_chassis_id(tlv, &type, &length, &data); - if (r < 0) - return r; - - c = new0(lldp_chassis, 1); - if (!c) - return -ENOMEM; - - c->n_ref = REFCNT_INIT; - c->chassis_id.type = type; - c->chassis_id.length = length; - - c->chassis_id.data = memdup(data, length); - if (!c->chassis_id.data) - return -ENOMEM; - - LIST_HEAD_INIT(c->ports); - - c->by_expiry = by_expiry; - c->neighbour_mib = neighbour_mib; - - *ret = c; - c = NULL; - - return 0; -} diff --git a/src/libsystemd-network/lldp-internal.h b/src/libsystemd-network/lldp-internal.h deleted file mode 100644 index 8e09ee8f3a..0000000000 --- a/src/libsystemd-network/lldp-internal.h +++ /dev/null @@ -1,99 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -#include "log.h" -#include "list.h" -#include "refcnt.h" -#include "lldp-tlv.h" -#include "prioq.h" - -typedef struct lldp_neighbour_port lldp_neighbour_port; -typedef struct lldp_chassis lldp_chassis; -typedef struct lldp_chassis_id lldp_chassis_id; -typedef struct lldp_agent_statistics lldp_agent_statistics; - -struct lldp_neighbour_port { - uint8_t type; - uint8_t *data; - - uint16_t length; - usec_t until; - - unsigned prioq_idx; - - lldp_chassis *c; - tlv_packet *packet; - - LIST_FIELDS(lldp_neighbour_port, port); -}; - -int lldp_neighbour_port_new(lldp_chassis *c, tlv_packet *tlv, lldp_neighbour_port **ret); -void lldp_neighbour_port_free(lldp_neighbour_port *p); -void lldp_neighbour_port_remove_and_free(lldp_neighbour_port *p); - -DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_neighbour_port *, lldp_neighbour_port_free); -#define _cleanup_lldp_neighbour_port_free_ _cleanup_(lldp_neighbour_port_freep) - -struct lldp_chassis_id { - uint8_t type; - uint16_t length; - - uint8_t *data; -}; - -struct lldp_chassis { - RefCount n_ref; - - lldp_chassis_id chassis_id; - - Prioq *by_expiry; - Hashmap *neighbour_mib; - - LIST_HEAD(lldp_neighbour_port, ports); -}; - -int lldp_chassis_new(tlv_packet *tlv, - Prioq *by_expiry, - Hashmap *neighbour_mib, - lldp_chassis **ret); - -void lldp_chassis_free(lldp_chassis *c); - -DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_chassis *, lldp_chassis_free); -#define _cleanup_lldp_chassis_free_ _cleanup_(lldp_chassis_freep) - -int lldp_mib_update_objects(lldp_chassis *c, tlv_packet *tlv); -int lldp_mib_add_objects(Prioq *by_expiry, Hashmap *neighbour_mib, tlv_packet *tlv); -int lldp_mib_remove_objects(lldp_chassis *c, tlv_packet *tlv); - -int lldp_read_chassis_id(tlv_packet *tlv, uint8_t *type, uint16_t *length, uint8_t **data); -int lldp_read_port_id(tlv_packet *tlv, uint8_t *type, uint16_t *length, uint8_t **data); -int lldp_read_ttl(tlv_packet *tlv, uint16_t *ttl); -int lldp_read_system_name(tlv_packet *tlv, uint16_t *length, char **data); -int lldp_read_system_description(tlv_packet *tlv, uint16_t *length, char **data); -int lldp_read_system_capability(tlv_packet *tlv, uint16_t *data); -int lldp_read_port_description(tlv_packet *tlv, uint16_t *length, char **data); - -int lldp_handle_packet(tlv_packet *m, uint16_t length); -#define log_lldp(fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "LLDP: " fmt, ##__VA_ARGS__) diff --git a/src/libsystemd-network/lldp-network.c b/src/libsystemd-network/lldp-network.c deleted file mode 100644 index 664d2f7867..0000000000 --- a/src/libsystemd-network/lldp-network.c +++ /dev/null @@ -1,111 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <linux/filter.h> -#include <linux/if_ether.h> - -#include "socket-util.h" -#include "lldp-tlv.h" -#include "lldp-network.h" -#include "lldp-internal.h" - -int lldp_network_bind_raw_socket(int ifindex) { - typedef struct LLDPFrame { - struct ethhdr hdr; - uint8_t tlvs[0]; - } LLDPFrame; - - struct sock_filter filter[] = { - BPF_STMT(BPF_LD + BPF_W + BPF_ABS, offsetof(LLDPFrame, hdr.h_dest)), /* A <- 4 bytes of destination MAC */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0x0180c200, 1, 0), /* A != 01:80:c2:00 */ - BPF_STMT(BPF_RET + BPF_K, 0), /* drop packet */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(LLDPFrame, hdr.h_dest) + 4), /* A <- remaining 2 bytes of destination MAC */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0x0000, 3, 0), /* A != 00:00 */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0x0003, 2, 0), /* A != 00:03 */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0x000e, 1, 0), /* A != 00:0e */ - BPF_STMT(BPF_RET + BPF_K, 0), /* drop packet */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(LLDPFrame, hdr.h_proto)), /* A <- protocol */ - BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ETHERTYPE_LLDP, 1, 0), /* A != ETHERTYPE_LLDP */ - BPF_STMT(BPF_RET + BPF_K, 0), /* drop packet */ - BPF_STMT(BPF_RET + BPF_K, (uint32_t) -1), /* accept packet */ - }; - - struct sock_fprog fprog = { - .len = ELEMENTSOF(filter), - .filter = filter - }; - - _cleanup_close_ int s = -1; - - union sockaddr_union saddrll = { - .ll.sll_family = AF_PACKET, - .ll.sll_ifindex = ifindex, - }; - - int r; - - assert(ifindex > 0); - - s = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); - if (s < 0) - return -errno; - - r = setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)); - if (r < 0) - return -errno; - - r = bind(s, &saddrll.sa, sizeof(saddrll.ll)); - if (r < 0) - return -errno; - - r = s; - s = -1; - - return r; -} - -int lldp_receive_packet(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - _cleanup_tlv_packet_free_ tlv_packet *packet = NULL; - tlv_packet *p; - uint16_t length; - int r; - - assert(fd); - assert(userdata); - - r = tlv_packet_new(&packet); - if (r < 0) - return r; - - length = read(fd, &packet->pdu, sizeof(packet->pdu)); - - /* Silently drop the packet */ - if ((size_t) length > ETHER_MAX_LEN) - return 0; - - packet->userdata = userdata; - - p = packet; - packet = NULL; - - return lldp_handle_packet(p, (uint16_t) length); -} diff --git a/src/libsystemd-network/lldp-network.h b/src/libsystemd-network/lldp-network.h deleted file mode 100644 index b7f8d3bf80..0000000000 --- a/src/libsystemd-network/lldp-network.h +++ /dev/null @@ -1,28 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -#include "sd-event.h" - -int lldp_network_bind_raw_socket(int ifindex); -int lldp_receive_packet(sd_event_source *s, int fd, uint32_t revents, void *userdata); diff --git a/src/libsystemd-network/lldp-port.c b/src/libsystemd-network/lldp-port.c deleted file mode 100644 index aa6a3b9224..0000000000 --- a/src/libsystemd-network/lldp-port.c +++ /dev/null @@ -1,116 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "async.h" -#include "lldp-port.h" -#include "lldp-network.h" - -int lldp_port_start(lldp_port *p) { - int r; - - assert_return(p, -EINVAL); - - r = lldp_network_bind_raw_socket(p->ifindex); - if (r < 0) - return r; - - p->rawfd = r; - - r = sd_event_add_io(p->event, &p->lldp_port_rx, - p->rawfd, EPOLLIN, lldp_receive_packet, p); - if (r < 0) { - log_debug("Failed to allocate event source: %s", strerror(-r)); - return r; - } - - r = sd_event_source_set_priority(p->lldp_port_rx, p->event_priority); - if (r < 0) { - log_debug("Failed to set event priority: %s", strerror(-r)); - goto fail; - } - - r = sd_event_source_set_description(p->lldp_port_rx, "lldp-port-rx"); - if (r < 0) { - log_debug("Failed to set event name: %s", strerror(-r)); - goto fail; - } - - return 0; - -fail: - lldp_port_stop(p); - - return r; -} - -int lldp_port_stop(lldp_port *p) { - - assert_return(p, -EINVAL); - - p->rawfd = asynchronous_close(p->rawfd); - p->lldp_port_rx = sd_event_source_unref(p->lldp_port_rx); - - return 0; -} - -void lldp_port_free(lldp_port *p) { - if (!p) - return; - - lldp_port_stop(p); - - free(p->ifname); - free(p); -} - -int lldp_port_new(int ifindex, - const char *ifname, - const struct ether_addr *addr, - void *userdata, - lldp_port **ret) { - _cleanup_free_ lldp_port *p = NULL; - - assert_return(ifindex, -EINVAL); - assert_return(ifname, -EINVAL); - assert_return(addr, -EINVAL); - - p = new0(lldp_port, 1); - if (!p) - return -ENOMEM; - - p->rawfd = -1; - p->ifindex = ifindex; - - p->ifname = strdup(ifname); - if (!p->ifname) - return -ENOMEM; - - memcpy(&p->mac, addr, ETH_ALEN); - - p->userdata = userdata; - - *ret = p; - - p = NULL; - - return 0; -} diff --git a/src/libsystemd-network/lldp-port.h b/src/libsystemd-network/lldp-port.h deleted file mode 100644 index b2d3180091..0000000000 --- a/src/libsystemd-network/lldp-port.h +++ /dev/null @@ -1,63 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -#include <net/ethernet.h> - -#include "sd-event.h" -#include "sd-lldp.h" - -#include "util.h" - -typedef struct lldp_port lldp_port; - -struct lldp_port { - LLDPPortStatus status; - - int ifindex; - char *ifname; - - struct ether_addr mac; - - int rawfd; - - sd_event *event; - sd_event_source *lldp_port_rx; - - int event_priority; - - void *userdata; -}; - -int lldp_port_new(int ifindex, - const char *ifname, - const struct ether_addr *addr, - void *userdata, - lldp_port **ret); -void lldp_port_free(lldp_port *p); - -DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_port*, lldp_port_free); -#define _cleanup_lldp_port_free_ _cleanup_(lldp_port_freep) - -int lldp_port_start(lldp_port *p); -int lldp_port_stop(lldp_port *p); diff --git a/src/libsystemd-network/lldp-tlv.c b/src/libsystemd-network/lldp-tlv.c deleted file mode 100644 index e32783f3eb..0000000000 --- a/src/libsystemd-network/lldp-tlv.c +++ /dev/null @@ -1,321 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <net/ethernet.h> -#include <arpa/inet.h> - -#include "macro.h" -#include "lldp-tlv.h" - -int tlv_section_new(tlv_section **ret) { - tlv_section *s; - - s = new0(tlv_section, 1); - if (!s) - return -ENOMEM; - - *ret = s; - - return 0; -} - -void tlv_section_free(tlv_section *m) { - - if (!m) - return; - - free(m); -} - -int tlv_packet_new(tlv_packet **ret) { - tlv_packet *m; - - m = new0(tlv_packet, 1); - if (!m) - return -ENOMEM; - - LIST_HEAD_INIT(m->sections); - - *ret = m; - - return 0; -} - -void tlv_packet_free(tlv_packet *m) { - tlv_section *s, *n; - - if (!m) - return; - - LIST_FOREACH_SAFE(section, s, n, m->sections) - tlv_section_free(s); - - free(m); -} - -int tlv_packet_append_bytes(tlv_packet *m, const void *data, size_t data_length) { - uint8_t *p; - - assert_return(m, -EINVAL); - assert_return(data, -EINVAL); - assert_return(data_length, -EINVAL); - - if (m->length + data_length > ETHER_MAX_LEN) - return -ENOMEM; - - p = m->pdu + m->length; - memcpy(p, data, data_length); - m->length += data_length; - - return 0; -} - -int tlv_packet_append_u8(tlv_packet *m, uint8_t data) { - - assert_return(m, -EINVAL); - - return tlv_packet_append_bytes(m, &data, sizeof(uint8_t)); -} - -int tlv_packet_append_u16(tlv_packet *m, uint16_t data) { - uint16_t type; - - assert_return(m, -EINVAL); - - type = htons(data); - - return tlv_packet_append_bytes(m, &type, sizeof(uint16_t)); -} - -int tlv_packet_append_u32(tlv_packet *m, uint32_t data) { - uint32_t type; - - assert_return(m, -EINVAL); - - type = htonl(data); - - return tlv_packet_append_bytes(m, &type, sizeof(uint32_t)); -} - -int tlv_packet_append_string(tlv_packet *m, char *data, uint16_t size) { - - assert_return(m, -EINVAL); - - return tlv_packet_append_bytes(m, data, size); -} - -int lldp_tlv_packet_open_container(tlv_packet *m, uint16_t type) { - - assert_return(m, -EINVAL); - - m->container_pos = m->pdu + m->length; - - return tlv_packet_append_u16(m, type << 9); -} - -int lldp_tlv_packet_close_container(tlv_packet *m) { - uint16_t type; - - assert_return(m, -EINVAL); - assert_return(m->container_pos, -EINVAL); - - memcpy(&type, m->container_pos, sizeof(uint16_t)); - - type |= htons(((m->pdu + m->length) - (m->container_pos + 2)) & 0x01ff); - memcpy(m->container_pos, &type, sizeof(uint16_t)); - - return 0; -} - -static inline int tlv_packet_read_internal(tlv_section *m, void **data) { - - assert_return(m->read_pos, -EINVAL); - - *data = m->read_pos; - - return 0; -} - -int tlv_packet_read_u8(tlv_packet *m, uint8_t *data) { - void *val = NULL; - int r; - - assert_return(m, -EINVAL); - - r = tlv_packet_read_internal(m->container, &val); - if (r < 0) - return r; - - memcpy(data, val, sizeof(uint8_t)); - - m->container->read_pos ++; - - return 0; -} - -int tlv_packet_read_u16(tlv_packet *m, uint16_t *data) { - uint16_t t; - void *val = NULL; - int r; - - assert_return(m, -EINVAL); - - r = tlv_packet_read_internal(m->container, &val); - if (r < 0) - return r; - - memcpy(&t, val, sizeof(uint16_t)); - *data = ntohs(t); - - m->container->read_pos += 2; - - return 0; -} - -int tlv_packet_read_u32(tlv_packet *m, uint32_t *data) { - uint32_t t; - void *val; - int r; - - assert_return(m, -EINVAL); - - r = tlv_packet_read_internal(m->container, &val); - if (r < 0) - return r; - - memcpy(&t, val, sizeof(uint32_t)); - *data = ntohl(t); - - m->container->read_pos += 4; - - return r; -} - -int tlv_packet_read_string(tlv_packet *m, char **data, uint16_t *data_length) { - void *val = NULL; - int r; - - assert_return(m, -EINVAL); - - r = tlv_packet_read_internal(m->container, &val); - if (r < 0) - return r; - - *data = (char *) val; - *data_length = m->container->length; - - m->container->read_pos += m->container->length; - - return 0; -} - -int tlv_packet_read_bytes(tlv_packet *m, uint8_t **data, uint16_t *data_length) { - void *val = NULL; - int r; - - assert_return(m, -EINVAL); - - r = tlv_packet_read_internal(m->container, &val); - if (r < 0) - return r; - - *data = (uint8_t *) val; - *data_length = m->container->length; - - m->container->read_pos += m->container->length; - - return 0; -} - -/* parse raw TLV packet */ -int tlv_packet_parse_pdu(tlv_packet *m, uint16_t size) { - tlv_section *section, *tail; - uint16_t t, l; - uint8_t *p; - int r; - - assert_return(m, -EINVAL); - assert_return(size, -EINVAL); - - p = m->pdu; - - /* extract ethernet herader */ - memcpy(&m->mac, p, ETH_ALEN); - p += sizeof(struct ether_header); - - for (l = 0; l <= size; ) { - r = tlv_section_new(§ion); - if (r < 0) - return r; - - memcpy(&t, p, sizeof(uint16_t)); - - section->type = ntohs(t) >> 9; - section->length = ntohs(t) & 0x01ff; - - if (section->type == LLDP_TYPE_END || section->type >=_LLDP_TYPE_MAX) { - tlv_section_free(section); - break; - } - - p += 2; - section->data = p; - - LIST_FIND_TAIL(section, m->sections, tail); - LIST_INSERT_AFTER(section, m->sections, tail, section); - - p += section->length; - l += (section->length + 2); - } - - return 0; -} - -int lldp_tlv_packet_enter_container(tlv_packet *m, uint16_t type) { - tlv_section *s; - - assert_return(m, -EINVAL); - - LIST_FOREACH(section, s, m->sections) - if (s->type == type) - break; - if (!s) - return -1; - - m->container = s; - - m->container->read_pos = s->data; - if (!m->container->read_pos) { - m->container = 0; - return -1; - } - - return 0; -} - -int lldp_tlv_packet_exit_container(tlv_packet *m) { - assert_return(m, -EINVAL); - - m->container = 0; - - return 0; -} diff --git a/src/libsystemd-network/lldp-tlv.h b/src/libsystemd-network/lldp-tlv.h deleted file mode 100644 index ce3334e115..0000000000 --- a/src/libsystemd-network/lldp-tlv.h +++ /dev/null @@ -1,87 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -#include <net/ethernet.h> - -#include "util.h" -#include "lldp.h" -#include "list.h" - -typedef struct tlv_packet tlv_packet; -typedef struct tlv_section tlv_section; - -struct tlv_section { - uint16_t type; - uint16_t length; - - uint8_t *read_pos; - uint8_t *data; - - LIST_FIELDS(tlv_section, section); -}; - -int tlv_section_new(tlv_section **ret); -void tlv_section_free(tlv_section *ret); - -struct tlv_packet { - uint16_t type; - uint16_t length; - usec_t ts; - - uint8_t *container_pos; - uint8_t pdu[ETHER_MAX_LEN]; - - void *userdata; - - struct ether_addr mac; - tlv_section *container; - - LIST_HEAD(tlv_section, sections); -}; - -int tlv_packet_new(tlv_packet **ret); -void tlv_packet_free(tlv_packet *m); - -DEFINE_TRIVIAL_CLEANUP_FUNC(tlv_packet*, tlv_packet_free); -#define _cleanup_tlv_packet_free_ _cleanup_(tlv_packet_freep) - -int lldp_tlv_packet_open_container(tlv_packet *m, uint16_t type); -int lldp_tlv_packet_close_container(tlv_packet *m); - -int tlv_packet_append_bytes(tlv_packet *m, const void *data, size_t data_length); -int tlv_packet_append_u8(tlv_packet *m, uint8_t data); -int tlv_packet_append_u16(tlv_packet *m, uint16_t data); -int tlv_packet_append_u32(tlv_packet *m, uint32_t data); -int tlv_packet_append_string(tlv_packet *m, char *data, uint16_t size); - -int lldp_tlv_packet_enter_container(tlv_packet *m, uint16_t type); -int lldp_tlv_packet_exit_container(tlv_packet *m); - -int tlv_packet_read_bytes(tlv_packet *m, uint8_t **data, uint16_t *data_length); -int tlv_packet_read_string(tlv_packet *m, char **data, uint16_t *data_length); -int tlv_packet_read_u8(tlv_packet *m, uint8_t *data); -int tlv_packet_read_u16(tlv_packet *m, uint16_t *data); -int tlv_packet_read_u32(tlv_packet *m, uint32_t *data); - -int tlv_packet_parse_pdu(tlv_packet *t, uint16_t size); diff --git a/src/libsystemd-network/lldp-util.h b/src/libsystemd-network/lldp-util.h deleted file mode 100644 index 112001e4b9..0000000000 --- a/src/libsystemd-network/lldp-util.h +++ /dev/null @@ -1,26 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_lldp *, sd_lldp_free); -#define _cleanup_lldp_free_ _cleanup_(sd_lldp_freep) diff --git a/src/libsystemd-network/lldp.h b/src/libsystemd-network/lldp.h deleted file mode 100644 index 5e4b283e26..0000000000 --- a/src/libsystemd-network/lldp.h +++ /dev/null @@ -1,115 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#pragma once - -#define LLDP_MULTICAST_ADDR { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e } - -#define ETHERTYPE_LLDP 0x88cc - -/* IEEE 802.3AB Clause 9: TLV Types */ -typedef enum LLDPTypes { - LLDP_TYPE_END = 0, - LLDP_TYPE_CHASSIS_ID = 1, - LLDP_TYPE_PORT_ID = 2, - LLDP_TYPE_TTL = 3, - LLDP_TYPE_PORT_DESCRIPTION = 4, - LLDP_TYPE_SYSTEM_NAME = 5, - LLDP_TYPE_SYSTEM_DESCRIPTION = 6, - LLDP_TYPE_SYSTEM_CAPABILITIES = 7, - LLDP_TYPE_MGMT_ADDRESS = 8, - LLDP_TYPE_PRIVATE = 127, - _LLDP_TYPE_MAX, - _LLDP_TYPE_INVALID = -1, -} LLDPTypes; - -/* IEEE 802.3AB Clause 9.5.2: Chassis subtypes */ -typedef enum LLDPChassisSubtypes { - LLDP_CHASSIS_SUBTYPE_RESERVED = 0, - LLDP_CHASSIS_SUBTYPE_CHASSIS_COMPONENT = 1, - LLDP_CHASSIS_SUBTYPE_INTERFACE_ALIAS = 2, - LLDP_CHASSIS_SUBTYPE_PORT_COMPONENT = 3, - LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS = 4, - LLDP_CHASSIS_SUBTYPE_NETWORK_ADDRESS = 5, - LLDP_CHASSIS_SUBTYPE_INTERFACE_NAME = 6, - LLDP_CHASSIS_SUBTYPE_LOCALLY_ASSIGNED = 7, - _LLDP_CHASSIS_SUBTYPE_MAX, - _LLDP_CHASSIS_SUBTYPE_INVALID = -1, -} LLDPChassisSubtypes; - -/* IEEE 802.3AB Clause 9.5.3: Port subtype */ -typedef enum LLDPPortSubtypes { - LLDP_PORT_SUBTYPE_RESERVED = 0, - LLDP_PORT_SUBTYPE_INTERFACE_ALIAS = 1, - LLDP_PORT_SUBTYPE_PORT_COMPONENT = 2, - LLDP_PORT_SUBTYPE_MAC_ADDRESS = 3, - LLDP_PORT_SUBTYPE_NETWORK = 4, - LLDP_PORT_SUBTYPE_INTERFACE_NAME = 5, - LLDP_PORT_SUBTYPE_AGENT_CIRCUIT_ID = 6, - LLDP_PORT_SUBTYPE_LOCALLY_ASSIGNED = 7, - _LLDP_PORT_SUBTYPE_MAX, - _LLDP_PORT_SUBTYPE_INVALID = -1 -} LLDPPortSubtypes; - -typedef enum LLDPSystemCapabilities { - LLDP_SYSTEM_CAPABILITIES_OTHER = 1 << 0, - LLDP_SYSTEM_CAPABILITIES_REPEATER = 1 << 1, - LLDP_SYSTEM_CAPABILITIES_BRIDGE = 1 << 2, - LLDP_SYSTEM_CAPABILITIES_WLAN_AP = 1 << 3, - LLDP_SYSTEM_CAPABILITIES_ROUTER = 1 << 4, - LLDP_SYSTEM_CAPABILITIES_PHONE = 1 << 5, - LLDP_SYSTEM_CAPABILITIES_DOCSIS = 1 << 6, - LLDP_SYSTEM_CAPABILITIES_STATION = 1 << 7, - LLDP_SYSTEM_CAPABILITIES_CVLAN = 1 << 8, - LLDP_SYSTEM_CAPABILITIES_SVLAN = 1 << 9, - LLDP_SYSTEM_CAPABILITIES_TPMR = 1 << 10, - _LLDP_SYSTEM_CAPABILITIES_MAX, - _LLDP_SYSTEM_CAPABILITIES_INVALID = -1, -} LLDPSystemCapabilities; - -typedef enum LLDPMedSubtype { - LLDP_MED_SUBTYPE_RESERVED = 0, - LLDP_MED_SUBTYPE_CAPABILITIES = 1, - LLDP_MED_SUBTYPE_NETWORK_POLICY = 2, - LLDP_MED_SUBTYPE_LOCATION_ID = 3, - LLDP_MED_SUBTYPE_EXTENDED_PVMDI = 4, - LLDP_MED_SUBTYPE_INV_HWREV = 5, - LLDP_MED_SUBTYPE_INV_FWREV = 6, - LLDP_MED_SUBTYPE_INV_SWREV = 7, - LLDP_MED_SUBTYPE_INV_SERIAL = 8, - LLDP_MED_SUBTYPE_INV_MANUFACTURER = 9, - LLDP_MED_SUBTYPE_INV_MODELNAME = 10, - LLDP_MED_SUBTYPE_INV_ASSETID = 11, - _LLDP_MED_SUBTYPE_MAX, - _LLDP_MED_SUBTYPE_INVALID = -1, -} LLDPMedSubtype; - -typedef enum LLDPMedCapability { - LLDP_MED_CAPABILITY_CAPAPILITIES = 1 << 0, - LLDP_MED_CAPABILITY_NETWORK_POLICY = 1 << 1, - LLDP_MED_CAPABILITY_LOCATION_ID = 1 << 2, - LLDP_MED_CAPABILITY_EXTENDED_PSE = 1 << 3, - LLDP_MED_CAPABILITY_EXTENDED_PD = 1 << 4, - LLDP_MED_CAPABILITY_INVENTORY = 1 << 5, - LLDP_MED_CAPABILITY_MAX, - LLDP_MED_CAPABILITY_INVALID = -1, -} LLDPMedCapability; diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c deleted file mode 100644 index d579755cc8..0000000000 --- a/src/libsystemd-network/network-internal.c +++ /dev/null @@ -1,511 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Tom Gundersen <teg@jklm.no> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/ether.h> -#include <linux/if.h> -#include <arpa/inet.h> - -#include "strv.h" -#include "siphash24.h" -#include "dhcp-lease-internal.h" -#include "log.h" -#include "utf8.h" -#include "util.h" -#include "conf-parser.h" -#include "condition.h" -#include "network-internal.h" - -const char *net_get_name(struct udev_device *device) { - const char *name, *field; - - assert(device); - - /* fetch some persistent data unique (on this machine) to this device */ - FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") { - name = udev_device_get_property_value(device, field); - if (name) - return name; - } - - return NULL; -} - -#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a) - -int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]) { - size_t l, sz = 0; - const char *name = NULL; - int r; - uint8_t *v; - - assert(device); - - name = net_get_name(device); - if (!name) - return -ENOENT; - - l = strlen(name); - sz = sizeof(sd_id128_t) + l; - v = alloca(sz); - - /* fetch some persistent data unique to this machine */ - r = sd_id128_get_machine((sd_id128_t*) v); - if (r < 0) - return r; - memcpy(v + sizeof(sd_id128_t), name, l); - - /* Let's hash the machine ID plus the device name. We - * use a fixed, but originally randomly created hash - * key here. */ - siphash24(result, v, sz, HASH_KEY.bytes); - - return 0; -} - -bool net_match_config(const struct ether_addr *match_mac, - char * const *match_paths, - char * const *match_drivers, - char * const *match_types, - char * const *match_names, - Condition *match_host, - Condition *match_virt, - Condition *match_kernel, - Condition *match_arch, - const struct ether_addr *dev_mac, - const char *dev_path, - const char *dev_parent_driver, - const char *dev_driver, - const char *dev_type, - const char *dev_name) { - - if (match_host && !condition_test(match_host)) - return false; - - if (match_virt && !condition_test(match_virt)) - return false; - - if (match_kernel && !condition_test(match_kernel)) - return false; - - if (match_arch && !condition_test(match_arch)) - return false; - - if (match_mac && (!dev_mac || memcmp(match_mac, dev_mac, ETH_ALEN))) - return false; - - if (!strv_isempty(match_paths) && - (!dev_path || !strv_fnmatch(match_paths, dev_path, 0))) - return false; - - if (!strv_isempty(match_drivers) && - (!dev_driver || !strv_fnmatch(match_drivers, dev_driver, 0))) - return false; - - if (!strv_isempty(match_types) && - (!dev_type || !strv_fnmatch_or_empty(match_types, dev_type, 0))) - return false; - - if (!strv_isempty(match_names) && - (!dev_name || !strv_fnmatch_or_empty(match_names, dev_name, 0))) - return false; - - return true; -} - -int config_parse_net_condition(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ConditionType cond = ltype; - Condition **ret = data; - bool negate; - Condition *c; - _cleanup_free_ char *s = NULL; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - negate = rvalue[0] == '!'; - if (negate) - rvalue++; - - s = strdup(rvalue); - if (!s) - return log_oom(); - - c = condition_new(cond, s, false, negate); - if (!c) - return log_oom(); - - if (*ret) - condition_free(*ret); - - *ret = c; - return 0; -} - -int config_parse_ifname(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char **s = data; - _cleanup_free_ char *n = NULL; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = strdup(rvalue); - if (!n) - return log_oom(); - - if (!ascii_is_valid(n) || strlen(n) >= IFNAMSIZ) { - log_syntax(unit, LOG_ERR, filename, line, EINVAL, - "Interface name is not ASCII clean or is too long, ignoring assignment: %s", rvalue); - return 0; - } - - free(*s); - if (*n) { - *s = n; - n = NULL; - } else - *s = NULL; - - return 0; -} - -int config_parse_ifnames(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char ***sv = data; - const char *word, *state; - size_t l; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - FOREACH_WORD(word, l, rvalue, state) { - char *n; - - n = strndup(word, l); - if (!n) - return log_oom(); - - if (!ascii_is_valid(n) || strlen(n) >= IFNAMSIZ) { - log_syntax(unit, LOG_ERR, filename, line, EINVAL, - "Interface name is not ASCII clean or is too long, ignoring assignment: %s", rvalue); - free(n); - return 0; - } - - r = strv_consume(sv, n); - if (r < 0) - return log_oom(); - } - - return 0; -} - -int config_parse_ifalias(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char **s = data; - _cleanup_free_ char *n = NULL; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = strdup(rvalue); - if (!n) - return log_oom(); - - if (!ascii_is_valid(n) || strlen(n) >= IFALIASZ) { - log_syntax(unit, LOG_ERR, filename, line, EINVAL, - "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue); - return 0; - } - - free(*s); - if (*n) { - *s = n; - n = NULL; - } else - *s = NULL; - - return 0; -} - -int config_parse_hwaddr(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - struct ether_addr **hwaddr = data; - struct ether_addr *n; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = new0(struct ether_addr, 1); - if (!n) - return log_oom(); - - r = sscanf(rvalue, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", - &n->ether_addr_octet[0], - &n->ether_addr_octet[1], - &n->ether_addr_octet[2], - &n->ether_addr_octet[3], - &n->ether_addr_octet[4], - &n->ether_addr_octet[5]); - if (r != 6) { - log_syntax(unit, LOG_ERR, filename, line, EINVAL, - "Not a valid MAC address, ignoring assignment: %s", rvalue); - free(n); - return 0; - } - - free(*hwaddr); - *hwaddr = n; - - return 0; -} - -void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) { - unsigned i; - - assert(f); - assert(addresses); - assert(size); - - for (i = 0; i < size; i++) - fprintf(f, "%s%s", inet_ntoa(addresses[i]), - (i < (size - 1)) ? " ": ""); -} - -int deserialize_in_addrs(struct in_addr **ret, const char *string) { - _cleanup_free_ struct in_addr *addresses = NULL; - int size = 0; - const char *word, *state; - size_t len; - - assert(ret); - assert(string); - - FOREACH_WORD(word, len, string, state) { - _cleanup_free_ char *addr_str = NULL; - struct in_addr *new_addresses; - int r; - - new_addresses = realloc(addresses, (size + 1) * sizeof(struct in_addr)); - if (!new_addresses) - return -ENOMEM; - else - addresses = new_addresses; - - addr_str = strndup(word, len); - if (!addr_str) - return -ENOMEM; - - r = inet_pton(AF_INET, addr_str, &(addresses[size])); - if (r <= 0) - continue; - - size ++; - } - - *ret = addresses; - addresses = NULL; - - return size; -} - -int deserialize_in6_addrs(struct in6_addr **ret, const char *string) { - _cleanup_free_ struct in6_addr *addresses = NULL; - int size = 0; - const char *word, *state; - size_t len; - - assert(ret); - assert(string); - - FOREACH_WORD(word, len, string, state) { - _cleanup_free_ char *addr_str = NULL; - struct in6_addr *new_addresses; - int r; - - new_addresses = realloc(addresses, (size + 1) * sizeof(struct in6_addr)); - if (!new_addresses) - return -ENOMEM; - else - addresses = new_addresses; - - addr_str = strndup(word, len); - if (!addr_str) - return -ENOMEM; - - r = inet_pton(AF_INET6, addr_str, &(addresses[size])); - if (r <= 0) - continue; - - size++; - } - - *ret = addresses; - addresses = NULL; - - return size; -} - -void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *routes, size_t size) { - unsigned i; - - assert(f); - assert(key); - assert(routes); - assert(size); - - fprintf(f, "%s=", key); - - for (i = 0; i < size; i++) { - fprintf(f, "%s/%" PRIu8, inet_ntoa(routes[i].dst_addr), - routes[i].dst_prefixlen); - fprintf(f, ",%s%s", inet_ntoa(routes[i].gw_addr), - (i < (size - 1)) ? " ": ""); - } - - fputs("\n", f); -} - -int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string) { - _cleanup_free_ struct sd_dhcp_route *routes = NULL; - size_t size = 0, allocated = 0; - const char *word, *state; - size_t len; - - assert(ret); - assert(ret_size); - assert(ret_allocated); - assert(string); - - FOREACH_WORD(word, len, string, state) { - /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */ - _cleanup_free_ char* entry = NULL; - char *tok, *tok_end; - unsigned n; - int r; - - if (!GREEDY_REALLOC(routes, allocated, size + 1)) - return -ENOMEM; - - entry = strndup(word, len); - if(!entry) - return -ENOMEM; - - tok = entry; - - /* get the subnet */ - tok_end = strchr(tok, '/'); - if (!tok_end) - continue; - *tok_end = '\0'; - - r = inet_aton(tok, &routes[size].dst_addr); - if (r == 0) - continue; - - tok = tok_end + 1; - - /* get the prefixlen */ - tok_end = strchr(tok, ','); - if (!tok_end) - continue; - - *tok_end = '\0'; - - r = safe_atou(tok, &n); - if (r < 0 || n > 32) - continue; - - routes[size].dst_prefixlen = (uint8_t) n; - tok = tok_end + 1; - - /* get the gateway */ - r = inet_aton(tok, &routes[size].gw_addr); - if (r == 0) - continue; - - size++; - } - - *ret_size = size; - *ret_allocated = allocated; - *ret = routes; - routes = NULL; - - return 0; -} diff --git a/src/libsystemd-network/network-internal.h b/src/libsystemd-network/network-internal.h deleted file mode 100644 index 06aba893ce..0000000000 --- a/src/libsystemd-network/network-internal.h +++ /dev/null @@ -1,76 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#pragma once - -/*** - This file is part of systemd. - - Copyright (C) 2013 Tom Gundersen <teg@jklm.no> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> - -#include "udev.h" -#include "condition.h" - -bool net_match_config(const struct ether_addr *match_mac, - char * const *match_path, - char * const *match_driver, - char * const *match_type, - char * const *match_name, - Condition *match_host, - Condition *match_virt, - Condition *match_kernel, - Condition *match_arch, - const struct ether_addr *dev_mac, - const char *dev_path, - const char *dev_parent_driver, - const char *dev_driver, - const char *dev_type, - const char *dev_name); - -int config_parse_net_condition(const char *unit, const char *filename, unsigned line, - const char *section, unsigned section_line, const char *lvalue, - int ltype, const char *rvalue, void *data, void *userdata); - -int config_parse_hwaddr(const char *unit, const char *filename, unsigned line, - const char *section, unsigned section_line, const char *lvalue, - int ltype, const char *rvalue, void *data, void *userdata); - -int config_parse_ifname(const char *unit, const char *filename, unsigned line, - const char *section, unsigned section_line, const char *lvalue, - int ltype, const char *rvalue, void *data, void *userdata); - -int config_parse_ifnames(const char *unit, const char *filename, unsigned line, - const char *section, unsigned section_line, const char *lvalue, - int ltype, const char *rvalue, void *data, void *userdata); - -int config_parse_ifalias(const char *unit, const char *filename, unsigned line, - const char *section, unsigned section_line, const char *lvalue, - int ltype, const char *rvalue, void *data, void *userdata); - -int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]); -const char *net_get_name(struct udev_device *device); - -void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size); -int deserialize_in_addrs(struct in_addr **addresses, const char *string); -int deserialize_in6_addrs(struct in6_addr **addresses, const char *string); - -/* don't include "dhcp-lease-internal.h" as it causes conflicts between netinet/ip.h and linux/ip.h */ -struct sd_dhcp_route; - -void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *routes, size_t size); -int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string); diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c deleted file mode 100644 index a477cccecb..0000000000 --- a/src/libsystemd-network/sd-dhcp-client.c +++ /dev/null @@ -1,1733 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <stdio.h> -#include <net/ethernet.h> -#include <net/if_arp.h> -#include <linux/if_infiniband.h> -#include <sys/ioctl.h> - -#include "util.h" -#include "refcnt.h" -#include "async.h" - -#include "dhcp-protocol.h" -#include "dhcp-internal.h" -#include "dhcp-lease-internal.h" -#include "dhcp-identifier.h" -#include "sd-dhcp-client.h" - -#define MAX_CLIENT_ID_LEN (sizeof(uint32_t) + MAX_DUID_LEN) /* Arbitrary limit */ -#define MAX_MAC_ADDR_LEN INFINIBAND_ALEN - -struct sd_dhcp_client { - RefCount n_ref; - - DHCPState state; - sd_event *event; - int event_priority; - sd_event_source *timeout_resend; - int index; - int fd; - union sockaddr_union link; - sd_event_source *receive_message; - bool request_broadcast; - uint8_t *req_opts; - size_t req_opts_allocated; - size_t req_opts_size; - be32_t last_addr; - uint8_t mac_addr[MAX_MAC_ADDR_LEN]; - size_t mac_addr_len; - uint16_t arp_type; - struct { - uint8_t type; - union { - struct { - /* 0: Generic (non-LL) (RFC 2132) */ - uint8_t data[MAX_CLIENT_ID_LEN]; - } _packed_ gen; - struct { - /* 1: Ethernet Link-Layer (RFC 2132) */ - uint8_t haddr[ETH_ALEN]; - } _packed_ eth; - struct { - /* 2 - 254: ARP/Link-Layer (RFC 2132) */ - uint8_t haddr[0]; - } _packed_ ll; - struct { - /* 255: Node-specific (RFC 4361) */ - uint32_t iaid; - struct duid duid; - } _packed_ ns; - struct { - uint8_t data[MAX_CLIENT_ID_LEN]; - } _packed_ raw; - }; - } _packed_ client_id; - size_t client_id_len; - char *hostname; - char *vendor_class_identifier; - uint32_t mtu; - uint32_t xid; - usec_t start_time; - unsigned int attempt; - usec_t request_sent; - sd_event_source *timeout_t1; - sd_event_source *timeout_t2; - sd_event_source *timeout_expire; - sd_dhcp_client_cb_t cb; - void *userdata; - sd_dhcp_lease *lease; -}; - -static const uint8_t default_req_opts[] = { - DHCP_OPTION_SUBNET_MASK, - DHCP_OPTION_ROUTER, - DHCP_OPTION_HOST_NAME, - DHCP_OPTION_DOMAIN_NAME, - DHCP_OPTION_DOMAIN_NAME_SERVER, - DHCP_OPTION_NTP_SERVER, -}; - -static int client_receive_message_raw(sd_event_source *s, int fd, - uint32_t revents, void *userdata); -static int client_receive_message_udp(sd_event_source *s, int fd, - uint32_t revents, void *userdata); -static void client_stop(sd_dhcp_client *client, int error); - -int sd_dhcp_client_set_callback(sd_dhcp_client *client, sd_dhcp_client_cb_t cb, - void *userdata) { - assert_return(client, -EINVAL); - - client->cb = cb; - client->userdata = userdata; - - return 0; -} - -int sd_dhcp_client_set_request_broadcast(sd_dhcp_client *client, int broadcast) { - assert_return(client, -EINVAL); - - client->request_broadcast = !!broadcast; - - return 0; -} - -int sd_dhcp_client_set_request_option(sd_dhcp_client *client, uint8_t option) { - size_t i; - - assert_return(client, -EINVAL); - assert_return (IN_SET(client->state, DHCP_STATE_INIT, - DHCP_STATE_STOPPED), -EBUSY); - - switch(option) { - case DHCP_OPTION_PAD: - case DHCP_OPTION_OVERLOAD: - case DHCP_OPTION_MESSAGE_TYPE: - case DHCP_OPTION_PARAMETER_REQUEST_LIST: - case DHCP_OPTION_END: - return -EINVAL; - - default: - break; - } - - for (i = 0; i < client->req_opts_size; i++) - if (client->req_opts[i] == option) - return -EEXIST; - - if (!GREEDY_REALLOC(client->req_opts, client->req_opts_allocated, - client->req_opts_size + 1)) - return -ENOMEM; - - client->req_opts[client->req_opts_size++] = option; - - return 0; -} - -int sd_dhcp_client_set_request_address(sd_dhcp_client *client, - const struct in_addr *last_addr) { - assert_return(client, -EINVAL); - assert_return (IN_SET(client->state, DHCP_STATE_INIT, - DHCP_STATE_STOPPED), -EBUSY); - - if (last_addr) - client->last_addr = last_addr->s_addr; - else - client->last_addr = INADDR_ANY; - - return 0; -} - -int sd_dhcp_client_set_index(sd_dhcp_client *client, int interface_index) { - assert_return(client, -EINVAL); - assert_return (IN_SET(client->state, DHCP_STATE_INIT, - DHCP_STATE_STOPPED), -EBUSY); - assert_return(interface_index > 0, -EINVAL); - - client->index = interface_index; - - return 0; -} - -int sd_dhcp_client_set_mac(sd_dhcp_client *client, const uint8_t *addr, - size_t addr_len, uint16_t arp_type) { - DHCP_CLIENT_DONT_DESTROY(client); - bool need_restart = false; - - assert_return(client, -EINVAL); - assert_return(addr, -EINVAL); - assert_return(addr_len > 0 && addr_len <= MAX_MAC_ADDR_LEN, -EINVAL); - assert_return(arp_type > 0, -EINVAL); - - if (arp_type == ARPHRD_ETHER) - assert_return(addr_len == ETH_ALEN, -EINVAL); - else if (arp_type == ARPHRD_INFINIBAND) - assert_return(addr_len == INFINIBAND_ALEN, -EINVAL); - else - return -EINVAL; - - if (client->mac_addr_len == addr_len && - memcmp(&client->mac_addr, addr, addr_len) == 0) - return 0; - - if (!IN_SET(client->state, DHCP_STATE_INIT, DHCP_STATE_STOPPED)) { - log_dhcp_client(client, "Changing MAC address on running DHCP " - "client, restarting"); - need_restart = true; - client_stop(client, DHCP_EVENT_STOP); - } - - memcpy(&client->mac_addr, addr, addr_len); - client->mac_addr_len = addr_len; - client->arp_type = arp_type; - - if (need_restart && client->state != DHCP_STATE_STOPPED) - sd_dhcp_client_start(client); - - return 0; -} - -int sd_dhcp_client_get_client_id(sd_dhcp_client *client, uint8_t *type, - const uint8_t **data, size_t *data_len) { - - assert_return(client, -EINVAL); - assert_return(type, -EINVAL); - assert_return(data, -EINVAL); - assert_return(data_len, -EINVAL); - - *type = 0; - *data = NULL; - *data_len = 0; - if (client->client_id_len) { - *type = client->client_id.type; - *data = client->client_id.raw.data; - *data_len = client->client_id_len - sizeof(client->client_id.type); - } - - return 0; -} - -int sd_dhcp_client_set_client_id(sd_dhcp_client *client, uint8_t type, - const uint8_t *data, size_t data_len) { - DHCP_CLIENT_DONT_DESTROY(client); - bool need_restart = false; - - assert_return(client, -EINVAL); - assert_return(data, -EINVAL); - assert_return(data_len > 0 && data_len <= MAX_CLIENT_ID_LEN, -EINVAL); - - switch (type) { - case ARPHRD_ETHER: - if (data_len != ETH_ALEN) - return -EINVAL; - break; - case ARPHRD_INFINIBAND: - if (data_len != INFINIBAND_ALEN) - return -EINVAL; - break; - default: - break; - } - - if (client->client_id_len == data_len + sizeof(client->client_id.type) && - client->client_id.type == type && - memcmp(&client->client_id.raw.data, data, data_len) == 0) - return 0; - - if (!IN_SET(client->state, DHCP_STATE_INIT, DHCP_STATE_STOPPED)) { - log_dhcp_client(client, "Changing client ID on running DHCP " - "client, restarting"); - need_restart = true; - client_stop(client, DHCP_EVENT_STOP); - } - - client->client_id.type = type; - memcpy(&client->client_id.raw.data, data, data_len); - client->client_id_len = data_len + sizeof (client->client_id.type); - - if (need_restart && client->state != DHCP_STATE_STOPPED) - sd_dhcp_client_start(client); - - return 0; -} - -int sd_dhcp_client_set_hostname(sd_dhcp_client *client, - const char *hostname) { - char *new_hostname = NULL; - - assert_return(client, -EINVAL); - - if (streq_ptr(client->hostname, hostname)) - return 0; - - if (hostname) { - new_hostname = strdup(hostname); - if (!new_hostname) - return -ENOMEM; - } - - free(client->hostname); - client->hostname = new_hostname; - - return 0; -} - -int sd_dhcp_client_set_vendor_class_identifier(sd_dhcp_client *client, - const char *vci) { - char *new_vci = NULL; - - assert_return(client, -EINVAL); - - new_vci = strdup(vci); - if (!new_vci) - return -ENOMEM; - - free(client->vendor_class_identifier); - - client->vendor_class_identifier = new_vci; - - return 0; -} - -int sd_dhcp_client_set_mtu(sd_dhcp_client *client, uint32_t mtu) { - assert_return(client, -EINVAL); - assert_return(mtu >= DHCP_DEFAULT_MIN_SIZE, -ERANGE); - - client->mtu = mtu; - - return 0; -} - -int sd_dhcp_client_get_lease(sd_dhcp_client *client, sd_dhcp_lease **ret) { - assert_return(client, -EINVAL); - assert_return(ret, -EINVAL); - - if (client->state != DHCP_STATE_BOUND && - client->state != DHCP_STATE_RENEWING && - client->state != DHCP_STATE_REBINDING) - return -EADDRNOTAVAIL; - - *ret = sd_dhcp_lease_ref(client->lease); - - return 0; -} - -static void client_notify(sd_dhcp_client *client, int event) { - if (client->cb) - client->cb(client, event, client->userdata); -} - -static int client_initialize(sd_dhcp_client *client) { - assert_return(client, -EINVAL); - - client->receive_message = - sd_event_source_unref(client->receive_message); - - client->fd = asynchronous_close(client->fd); - - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - - client->timeout_t1 = sd_event_source_unref(client->timeout_t1); - client->timeout_t2 = sd_event_source_unref(client->timeout_t2); - client->timeout_expire = sd_event_source_unref(client->timeout_expire); - - client->attempt = 1; - - client->state = DHCP_STATE_INIT; - client->xid = 0; - - if (client->lease) - client->lease = sd_dhcp_lease_unref(client->lease); - - return 0; -} - -static void client_stop(sd_dhcp_client *client, int error) { - assert(client); - - if (error < 0) - log_dhcp_client(client, "STOPPED: %s", strerror(-error)); - else if (error == DHCP_EVENT_STOP) - log_dhcp_client(client, "STOPPED"); - else - log_dhcp_client(client, "STOPPED: Unknown event"); - - client_notify(client, error); - - client_initialize(client); -} - -static int client_message_init(sd_dhcp_client *client, DHCPPacket **ret, - uint8_t type, size_t *_optlen, size_t *_optoffset) { - _cleanup_free_ DHCPPacket *packet; - size_t optlen, optoffset, size; - be16_t max_size; - usec_t time_now; - uint16_t secs; - int r; - - assert(client); - assert(client->start_time); - assert(ret); - assert(_optlen); - assert(_optoffset); - assert(type == DHCP_DISCOVER || type == DHCP_REQUEST); - - optlen = DHCP_MIN_OPTIONS_SIZE; - size = sizeof(DHCPPacket) + optlen; - - packet = malloc0(size); - if (!packet) - return -ENOMEM; - - r = dhcp_message_init(&packet->dhcp, BOOTREQUEST, client->xid, type, - client->arp_type, optlen, &optoffset); - if (r < 0) - return r; - - /* Although 'secs' field is a SHOULD in RFC 2131, certain DHCP servers - refuse to issue an DHCP lease if 'secs' is set to zero */ - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - return r; - assert(time_now >= client->start_time); - - /* seconds between sending first and last DISCOVER - * must always be strictly positive to deal with broken servers */ - secs = ((time_now - client->start_time) / USEC_PER_SEC) ? : 1; - packet->dhcp.secs = htobe16(secs); - - /* RFC2132 section 4.1 - A client that cannot receive unicast IP datagrams until its protocol - software has been configured with an IP address SHOULD set the - BROADCAST bit in the 'flags' field to 1 in any DHCPDISCOVER or - DHCPREQUEST messages that client sends. The BROADCAST bit will - provide a hint to the DHCP server and BOOTP relay agent to broadcast - any messages to the client on the client's subnet. - - Note: some interfaces needs this to be enabled, but some networks - needs this to be disabled as broadcasts are filteretd, so this - needs to be configurable */ - if (client->request_broadcast || client->arp_type != ARPHRD_ETHER) - packet->dhcp.flags = htobe16(0x8000); - - /* RFC2132 section 4.1.1: - The client MUST include its hardware address in the ’chaddr’ field, if - necessary for delivery of DHCP reply messages. Non-Ethernet - interfaces will leave 'chaddr' empty and use the client identifier - instead (eg, RFC 4390 section 2.1). - */ - if (client->arp_type == ARPHRD_ETHER) - memcpy(&packet->dhcp.chaddr, &client->mac_addr, ETH_ALEN); - - /* If no client identifier exists, construct an RFC 4361-compliant one */ - if (client->client_id_len == 0) { - size_t duid_len; - - client->client_id.type = 255; - - r = dhcp_identifier_set_iaid(client->index, client->mac_addr, client->mac_addr_len, &client->client_id.ns.iaid); - if (r < 0) - return r; - - r = dhcp_identifier_set_duid_en(&client->client_id.ns.duid, &duid_len); - if (r < 0) - return r; - - client->client_id_len = sizeof(client->client_id.type) + sizeof(client->client_id.ns.iaid) + duid_len; - } - - /* Some DHCP servers will refuse to issue an DHCP lease if the Client - Identifier option is not set */ - if (client->client_id_len) { - r = dhcp_option_append(&packet->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_CLIENT_IDENTIFIER, - client->client_id_len, - &client->client_id); - if (r < 0) - return r; - } - - /* RFC2131 section 3.5: - in its initial DHCPDISCOVER or DHCPREQUEST message, a - client may provide the server with a list of specific - parameters the client is interested in. If the client - includes a list of parameters in a DHCPDISCOVER message, - it MUST include that list in any subsequent DHCPREQUEST - messages. - */ - r = dhcp_option_append(&packet->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_PARAMETER_REQUEST_LIST, - client->req_opts_size, client->req_opts); - if (r < 0) - return r; - - /* RFC2131 section 3.5: - The client SHOULD include the ’maximum DHCP message size’ option to - let the server know how large the server may make its DHCP messages. - - Note (from ConnMan): Some DHCP servers will send bigger DHCP packets - than the defined default size unless the Maximum Messge Size option - is explicitly set - - RFC3442 "Requirements to Avoid Sizing Constraints": - Because a full routing table can be quite large, the standard 576 - octet maximum size for a DHCP message may be too short to contain - some legitimate Classless Static Route options. Because of this, - clients implementing the Classless Static Route option SHOULD send a - Maximum DHCP Message Size [4] option if the DHCP client's TCP/IP - stack is capable of receiving larger IP datagrams. In this case, the - client SHOULD set the value of this option to at least the MTU of the - interface that the client is configuring. The client MAY set the - value of this option higher, up to the size of the largest UDP packet - it is prepared to accept. (Note that the value specified in the - Maximum DHCP Message Size option is the total maximum packet size, - including IP and UDP headers.) - */ - max_size = htobe16(size); - r = dhcp_option_append(&packet->dhcp, client->mtu, &optoffset, 0, - DHCP_OPTION_MAXIMUM_MESSAGE_SIZE, - 2, &max_size); - if (r < 0) - return r; - - *_optlen = optlen; - *_optoffset = optoffset; - *ret = packet; - packet = NULL; - - return 0; -} - -static int dhcp_client_send_raw(sd_dhcp_client *client, DHCPPacket *packet, - size_t len) { - dhcp_packet_append_ip_headers(packet, INADDR_ANY, DHCP_PORT_CLIENT, - INADDR_BROADCAST, DHCP_PORT_SERVER, len); - - return dhcp_network_send_raw_socket(client->fd, &client->link, - packet, len); -} - -static int client_send_discover(sd_dhcp_client *client) { - _cleanup_free_ DHCPPacket *discover = NULL; - size_t optoffset, optlen; - int r; - - assert(client); - assert(client->state == DHCP_STATE_INIT || - client->state == DHCP_STATE_SELECTING); - - r = client_message_init(client, &discover, DHCP_DISCOVER, - &optlen, &optoffset); - if (r < 0) - return r; - - /* the client may suggest values for the network address - and lease time in the DHCPDISCOVER message. The client may include - the ’requested IP address’ option to suggest that a particular IP - address be assigned, and may include the ’IP address lease time’ - option to suggest the lease time it would like. - */ - if (client->last_addr != INADDR_ANY) { - r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_REQUESTED_IP_ADDRESS, - 4, &client->last_addr); - if (r < 0) - return r; - } - - /* it is unclear from RFC 2131 if client should send hostname in - DHCPDISCOVER but dhclient does and so we do as well - */ - if (client->hostname) { - r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_HOST_NAME, - strlen(client->hostname), client->hostname); - if (r < 0) - return r; - } - - if (client->vendor_class_identifier) { - r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_VENDOR_CLASS_IDENTIFIER, - strlen(client->vendor_class_identifier), - client->vendor_class_identifier); - if (r < 0) - return r; - } - - r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_END, 0, NULL); - if (r < 0) - return r; - - /* We currently ignore: - The client SHOULD wait a random time between one and ten seconds to - desynchronize the use of DHCP at startup. - */ - r = dhcp_client_send_raw(client, discover, sizeof(DHCPPacket) + optoffset); - if (r < 0) - return r; - - log_dhcp_client(client, "DISCOVER"); - - return 0; -} - -static int client_send_request(sd_dhcp_client *client) { - _cleanup_free_ DHCPPacket *request = NULL; - size_t optoffset, optlen; - int r; - - r = client_message_init(client, &request, DHCP_REQUEST, - &optlen, &optoffset); - if (r < 0) - return r; - - switch (client->state) { - /* See RFC2131 section 4.3.2 (note that there is a typo in the RFC, - SELECTING should be REQUESTING) - */ - - case DHCP_STATE_REQUESTING: - /* Client inserts the address of the selected server in ’server - identifier’, ’ciaddr’ MUST be zero, ’requested IP address’ MUST be - filled in with the yiaddr value from the chosen DHCPOFFER. - */ - - r = dhcp_option_append(&request->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_SERVER_IDENTIFIER, - 4, &client->lease->server_address); - if (r < 0) - return r; - - r = dhcp_option_append(&request->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_REQUESTED_IP_ADDRESS, - 4, &client->lease->address); - if (r < 0) - return r; - - break; - - case DHCP_STATE_INIT_REBOOT: - /* ’server identifier’ MUST NOT be filled in, ’requested IP address’ - option MUST be filled in with client’s notion of its previously - assigned address. ’ciaddr’ MUST be zero. - */ - r = dhcp_option_append(&request->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_REQUESTED_IP_ADDRESS, - 4, &client->last_addr); - if (r < 0) - return r; - break; - - case DHCP_STATE_RENEWING: - /* ’server identifier’ MUST NOT be filled in, ’requested IP address’ - option MUST NOT be filled in, ’ciaddr’ MUST be filled in with - client’s IP address. - */ - - /* fall through */ - case DHCP_STATE_REBINDING: - /* ’server identifier’ MUST NOT be filled in, ’requested IP address’ - option MUST NOT be filled in, ’ciaddr’ MUST be filled in with - client’s IP address. - - This message MUST be broadcast to the 0xffffffff IP broadcast address. - */ - request->dhcp.ciaddr = client->lease->address; - - break; - - case DHCP_STATE_INIT: - case DHCP_STATE_SELECTING: - case DHCP_STATE_REBOOTING: - case DHCP_STATE_BOUND: - case DHCP_STATE_STOPPED: - return -EINVAL; - } - - if (client->hostname) { - r = dhcp_option_append(&request->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_HOST_NAME, - strlen(client->hostname), client->hostname); - if (r < 0) - return r; - } - - r = dhcp_option_append(&request->dhcp, optlen, &optoffset, 0, - DHCP_OPTION_END, 0, NULL); - if (r < 0) - return r; - - if (client->state == DHCP_STATE_RENEWING) { - r = dhcp_network_send_udp_socket(client->fd, - client->lease->server_address, - DHCP_PORT_SERVER, - &request->dhcp, - sizeof(DHCPMessage) + optoffset); - } else { - r = dhcp_client_send_raw(client, request, sizeof(DHCPPacket) + optoffset); - } - if (r < 0) - return r; - - switch (client->state) { - case DHCP_STATE_REQUESTING: - log_dhcp_client(client, "REQUEST (requesting)"); - break; - case DHCP_STATE_INIT_REBOOT: - log_dhcp_client(client, "REQUEST (init-reboot)"); - break; - case DHCP_STATE_RENEWING: - log_dhcp_client(client, "REQUEST (renewing)"); - break; - case DHCP_STATE_REBINDING: - log_dhcp_client(client, "REQUEST (rebinding)"); - break; - default: - log_dhcp_client(client, "REQUEST (invalid)"); - break; - } - - return 0; -} - -static int client_start(sd_dhcp_client *client); - -static int client_timeout_resend(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_dhcp_client *client = userdata; - DHCP_CLIENT_DONT_DESTROY(client); - usec_t next_timeout = 0; - uint64_t time_now; - uint32_t time_left; - int r; - - assert(s); - assert(client); - assert(client->event); - - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - goto error; - - switch (client->state) { - case DHCP_STATE_RENEWING: - - time_left = (client->lease->t2 - client->lease->t1) / 2; - if (time_left < 60) - time_left = 60; - - next_timeout = time_now + time_left * USEC_PER_SEC; - - break; - - case DHCP_STATE_REBINDING: - - time_left = (client->lease->lifetime - client->lease->t2) / 2; - if (time_left < 60) - time_left = 60; - - next_timeout = time_now + time_left * USEC_PER_SEC; - break; - - case DHCP_STATE_REBOOTING: - /* start over as we did not receive a timely ack or nak */ - r = client_initialize(client); - if (r < 0) - goto error; - - r = client_start(client); - if (r < 0) - goto error; - else { - log_dhcp_client(client, "REBOOTED"); - return 0; - } - - case DHCP_STATE_INIT: - case DHCP_STATE_INIT_REBOOT: - case DHCP_STATE_SELECTING: - case DHCP_STATE_REQUESTING: - case DHCP_STATE_BOUND: - - if (client->attempt < 64) - client->attempt *= 2; - - next_timeout = time_now + (client->attempt - 1) * USEC_PER_SEC; - - break; - - case DHCP_STATE_STOPPED: - r = -EINVAL; - goto error; - } - - next_timeout += (random_u32() & 0x1fffff); - - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - - r = sd_event_add_time(client->event, - &client->timeout_resend, - clock_boottime_or_monotonic(), - next_timeout, 10 * USEC_PER_MSEC, - client_timeout_resend, client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->timeout_resend, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->timeout_resend, "dhcp4-resend-timer"); - if (r < 0) - goto error; - - switch (client->state) { - case DHCP_STATE_INIT: - r = client_send_discover(client); - if (r >= 0) { - client->state = DHCP_STATE_SELECTING; - client->attempt = 1; - } else { - if (client->attempt >= 64) - goto error; - } - - break; - - case DHCP_STATE_SELECTING: - r = client_send_discover(client); - if (r < 0 && client->attempt >= 64) - goto error; - - break; - - case DHCP_STATE_INIT_REBOOT: - case DHCP_STATE_REQUESTING: - case DHCP_STATE_RENEWING: - case DHCP_STATE_REBINDING: - r = client_send_request(client); - if (r < 0 && client->attempt >= 64) - goto error; - - if (client->state == DHCP_STATE_INIT_REBOOT) - client->state = DHCP_STATE_REBOOTING; - - client->request_sent = time_now; - - break; - - case DHCP_STATE_REBOOTING: - case DHCP_STATE_BOUND: - - break; - - case DHCP_STATE_STOPPED: - r = -EINVAL; - goto error; - } - - return 0; - -error: - client_stop(client, r); - - /* Errors were dealt with when stopping the client, don't spill - errors into the event loop handler */ - return 0; -} - -static int client_initialize_io_events(sd_dhcp_client *client, - sd_event_io_handler_t io_callback) { - int r; - - assert(client); - assert(client->event); - - r = sd_event_add_io(client->event, &client->receive_message, - client->fd, EPOLLIN, io_callback, - client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->receive_message, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->receive_message, "dhcp4-receive-message"); - if (r < 0) - goto error; - -error: - if (r < 0) - client_stop(client, r); - - return 0; -} - -static int client_initialize_time_events(sd_dhcp_client *client) { - int r; - - assert(client); - assert(client->event); - - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - - r = sd_event_add_time(client->event, - &client->timeout_resend, - clock_boottime_or_monotonic(), - 0, 0, - client_timeout_resend, client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->timeout_resend, - client->event_priority); - - r = sd_event_source_set_description(client->timeout_resend, "dhcp4-resend-timer"); - if (r < 0) - goto error; - -error: - if (r < 0) - client_stop(client, r); - - return 0; - -} - -static int client_initialize_events(sd_dhcp_client *client, - sd_event_io_handler_t io_callback) { - client_initialize_io_events(client, io_callback); - client_initialize_time_events(client); - - return 0; -} - -static int client_start(sd_dhcp_client *client) { - int r; - - assert_return(client, -EINVAL); - assert_return(client->event, -EINVAL); - assert_return(client->index > 0, -EINVAL); - assert_return(client->fd < 0, -EBUSY); - assert_return(client->xid == 0, -EINVAL); - assert_return(client->state == DHCP_STATE_INIT || - client->state == DHCP_STATE_INIT_REBOOT, -EBUSY); - - client->xid = random_u32(); - - r = dhcp_network_bind_raw_socket(client->index, &client->link, - client->xid, client->mac_addr, - client->mac_addr_len, client->arp_type); - if (r < 0) { - client_stop(client, r); - return r; - } - client->fd = r; - - if (client->state == DHCP_STATE_INIT || client->state == DHCP_STATE_INIT_REBOOT) - client->start_time = now(clock_boottime_or_monotonic()); - - return client_initialize_events(client, client_receive_message_raw); -} - -static int client_timeout_expire(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_dhcp_client *client = userdata; - DHCP_CLIENT_DONT_DESTROY(client); - - log_dhcp_client(client, "EXPIRED"); - - client_notify(client, DHCP_EVENT_EXPIRED); - - /* lease was lost, start over if not freed or stopped in callback */ - if (client->state != DHCP_STATE_STOPPED) { - client_initialize(client); - client_start(client); - } - - return 0; -} - -static int client_timeout_t2(sd_event_source *s, uint64_t usec, void *userdata) { - sd_dhcp_client *client = userdata; - DHCP_CLIENT_DONT_DESTROY(client); - int r; - - client->receive_message = sd_event_source_unref(client->receive_message); - client->fd = asynchronous_close(client->fd); - - client->state = DHCP_STATE_REBINDING; - client->attempt = 1; - - r = dhcp_network_bind_raw_socket(client->index, &client->link, - client->xid, client->mac_addr, - client->mac_addr_len, client->arp_type); - if (r < 0) { - client_stop(client, r); - return 0; - } - client->fd = r; - - return client_initialize_events(client, client_receive_message_raw); -} - -static int client_timeout_t1(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_dhcp_client *client = userdata; - DHCP_CLIENT_DONT_DESTROY(client); - - client->state = DHCP_STATE_RENEWING; - client->attempt = 1; - - return client_initialize_time_events(client); -} - -static int client_handle_offer(sd_dhcp_client *client, DHCPMessage *offer, - size_t len) { - _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL; - int r; - - r = dhcp_lease_new(&lease); - if (r < 0) - return r; - - if (client->client_id_len) { - r = dhcp_lease_set_client_id(lease, - (uint8_t *) &client->client_id, - client->client_id_len); - if (r < 0) - return r; - } - - r = dhcp_option_parse(offer, len, dhcp_lease_parse_options, lease); - if (r != DHCP_OFFER) { - log_dhcp_client(client, "received message was not an OFFER, ignoring"); - return -ENOMSG; - } - - lease->next_server = offer->siaddr; - - lease->address = offer->yiaddr; - - if (lease->address == INADDR_ANY || - lease->server_address == INADDR_ANY || - lease->lifetime == 0) { - log_dhcp_client(client, "received lease lacks address, server " - "address or lease lifetime, ignoring"); - return -ENOMSG; - } - - if (lease->subnet_mask == INADDR_ANY) { - r = dhcp_lease_set_default_subnet_mask(lease); - if (r < 0) { - log_dhcp_client(client, "received lease lacks subnet " - "mask, and a fallback one can not be " - "generated, ignoring"); - return -ENOMSG; - } - } - - sd_dhcp_lease_unref(client->lease); - client->lease = lease; - lease = NULL; - - log_dhcp_client(client, "OFFER"); - - return 0; -} - -static int client_handle_forcerenew(sd_dhcp_client *client, DHCPMessage *force, - size_t len) { - int r; - - r = dhcp_option_parse(force, len, NULL, NULL); - if (r != DHCP_FORCERENEW) - return -ENOMSG; - - log_dhcp_client(client, "FORCERENEW"); - - return 0; -} - -static int client_handle_ack(sd_dhcp_client *client, DHCPMessage *ack, - size_t len) { - _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL; - int r; - - r = dhcp_lease_new(&lease); - if (r < 0) - return r; - - if (client->client_id_len) { - r = dhcp_lease_set_client_id(lease, - (uint8_t *) &client->client_id, - client->client_id_len); - if (r < 0) - return r; - } - - r = dhcp_option_parse(ack, len, dhcp_lease_parse_options, lease); - if (r == DHCP_NAK) { - log_dhcp_client(client, "NAK"); - return -EADDRNOTAVAIL; - } - - if (r != DHCP_ACK) { - log_dhcp_client(client, "received message was not an ACK, ignoring"); - return -ENOMSG; - } - - lease->next_server = ack->siaddr; - - lease->address = ack->yiaddr; - - if (lease->address == INADDR_ANY || - lease->server_address == INADDR_ANY || - lease->lifetime == 0) { - log_dhcp_client(client, "received lease lacks address, server " - "address or lease lifetime, ignoring"); - return -ENOMSG; - } - - if (lease->subnet_mask == INADDR_ANY) { - r = dhcp_lease_set_default_subnet_mask(lease); - if (r < 0) { - log_dhcp_client(client, "received lease lacks subnet " - "mask, and a fallback one can not be " - "generated, ignoring"); - return -ENOMSG; - } - } - - r = DHCP_EVENT_IP_ACQUIRE; - if (client->lease) { - if (client->lease->address != lease->address || - client->lease->subnet_mask != lease->subnet_mask || - client->lease->router != lease->router) { - r = DHCP_EVENT_IP_CHANGE; - } else - r = DHCP_EVENT_RENEW; - - client->lease = sd_dhcp_lease_unref(client->lease); - } - - client->lease = lease; - lease = NULL; - - log_dhcp_client(client, "ACK"); - - return r; -} - -static uint64_t client_compute_timeout(sd_dhcp_client *client, - uint32_t lifetime, double factor) { - assert(client); - assert(client->request_sent); - assert(lifetime); - - return client->request_sent + ((lifetime - 3) * USEC_PER_SEC * factor) + - + (random_u32() & 0x1fffff); -} - -static int client_set_lease_timeouts(sd_dhcp_client *client) { - usec_t time_now; - uint64_t lifetime_timeout; - uint64_t t2_timeout; - uint64_t t1_timeout; - char time_string[FORMAT_TIMESPAN_MAX]; - int r; - - assert(client); - assert(client->event); - assert(client->lease); - assert(client->lease->lifetime); - - client->timeout_t1 = sd_event_source_unref(client->timeout_t1); - client->timeout_t2 = sd_event_source_unref(client->timeout_t2); - client->timeout_expire = sd_event_source_unref(client->timeout_expire); - - /* don't set timers for infinite leases */ - if (client->lease->lifetime == 0xffffffff) - return 0; - - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - return r; - assert(client->request_sent <= time_now); - - /* convert the various timeouts from relative (secs) to absolute (usecs) */ - lifetime_timeout = client_compute_timeout(client, client->lease->lifetime, 1); - if (client->lease->t1 && client->lease->t2) { - /* both T1 and T2 are given */ - if (client->lease->t1 < client->lease->t2 && - client->lease->t2 < client->lease->lifetime) { - /* they are both valid */ - t2_timeout = client_compute_timeout(client, client->lease->t2, 1); - t1_timeout = client_compute_timeout(client, client->lease->t1, 1); - } else { - /* discard both */ - t2_timeout = client_compute_timeout(client, client->lease->lifetime, 7.0 / 8.0); - client->lease->t2 = (client->lease->lifetime * 7) / 8; - t1_timeout = client_compute_timeout(client, client->lease->lifetime, 0.5); - client->lease->t1 = client->lease->lifetime / 2; - } - } else if (client->lease->t2 && client->lease->t2 < client->lease->lifetime) { - /* only T2 is given, and it is valid */ - t2_timeout = client_compute_timeout(client, client->lease->t2, 1); - t1_timeout = client_compute_timeout(client, client->lease->lifetime, 0.5); - client->lease->t1 = client->lease->lifetime / 2; - if (t2_timeout <= t1_timeout) { - /* the computed T1 would be invalid, so discard T2 */ - t2_timeout = client_compute_timeout(client, client->lease->lifetime, 7.0 / 8.0); - client->lease->t2 = (client->lease->lifetime * 7) / 8; - } - } else if (client->lease->t1 && client->lease->t1 < client->lease->lifetime) { - /* only T1 is given, and it is valid */ - t1_timeout = client_compute_timeout(client, client->lease->t1, 1); - t2_timeout = client_compute_timeout(client, client->lease->lifetime, 7.0 / 8.0); - client->lease->t2 = (client->lease->lifetime * 7) / 8; - if (t2_timeout <= t1_timeout) { - /* the computed T2 would be invalid, so discard T1 */ - t2_timeout = client_compute_timeout(client, client->lease->lifetime, 0.5); - client->lease->t2 = client->lease->lifetime / 2; - } - } else { - /* fall back to the default timeouts */ - t1_timeout = client_compute_timeout(client, client->lease->lifetime, 0.5); - client->lease->t1 = client->lease->lifetime / 2; - t2_timeout = client_compute_timeout(client, client->lease->lifetime, 7.0 / 8.0); - client->lease->t2 = (client->lease->lifetime * 7) / 8; - } - - /* arm lifetime timeout */ - r = sd_event_add_time(client->event, &client->timeout_expire, - clock_boottime_or_monotonic(), - lifetime_timeout, 10 * USEC_PER_MSEC, - client_timeout_expire, client); - if (r < 0) - return r; - - r = sd_event_source_set_priority(client->timeout_expire, - client->event_priority); - if (r < 0) - return r; - - r = sd_event_source_set_description(client->timeout_expire, "dhcp4-lifetime"); - if (r < 0) - return r; - - log_dhcp_client(client, "lease expires in %s", - format_timespan(time_string, FORMAT_TIMESPAN_MAX, - lifetime_timeout - time_now, 0)); - - /* don't arm earlier timeouts if this has already expired */ - if (lifetime_timeout <= time_now) - return 0; - - /* arm T2 timeout */ - r = sd_event_add_time(client->event, - &client->timeout_t2, - clock_boottime_or_monotonic(), - t2_timeout, - 10 * USEC_PER_MSEC, - client_timeout_t2, client); - if (r < 0) - return r; - - r = sd_event_source_set_priority(client->timeout_t2, - client->event_priority); - if (r < 0) - return r; - - r = sd_event_source_set_description(client->timeout_t2, "dhcp4-t2-timeout"); - if (r < 0) - return r; - - log_dhcp_client(client, "T2 expires in %s", - format_timespan(time_string, FORMAT_TIMESPAN_MAX, - t2_timeout - time_now, 0)); - - /* don't arm earlier timeout if this has already expired */ - if (t2_timeout <= time_now) - return 0; - - /* arm T1 timeout */ - r = sd_event_add_time(client->event, - &client->timeout_t1, - clock_boottime_or_monotonic(), - t1_timeout, 10 * USEC_PER_MSEC, - client_timeout_t1, client); - if (r < 0) - return r; - - r = sd_event_source_set_priority(client->timeout_t1, - client->event_priority); - if (r < 0) - return r; - - r = sd_event_source_set_description(client->timeout_t1, "dhcp4-t1-timer"); - if (r < 0) - return r; - - log_dhcp_client(client, "T1 expires in %s", - format_timespan(time_string, FORMAT_TIMESPAN_MAX, - t1_timeout - time_now, 0)); - - return 0; -} - -static int client_handle_message(sd_dhcp_client *client, DHCPMessage *message, - int len) { - DHCP_CLIENT_DONT_DESTROY(client); - int r = 0, notify_event = 0; - - assert(client); - assert(client->event); - assert(message); - - switch (client->state) { - case DHCP_STATE_SELECTING: - - r = client_handle_offer(client, message, len); - if (r >= 0) { - - client->timeout_resend = - sd_event_source_unref(client->timeout_resend); - - client->state = DHCP_STATE_REQUESTING; - client->attempt = 1; - - r = sd_event_add_time(client->event, - &client->timeout_resend, - clock_boottime_or_monotonic(), - 0, 0, - client_timeout_resend, client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->timeout_resend, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->timeout_resend, "dhcp4-resend-timer"); - if (r < 0) - goto error; - } else if (r == -ENOMSG) - /* invalid message, let's ignore it */ - return 0; - - break; - - case DHCP_STATE_REBOOTING: - case DHCP_STATE_REQUESTING: - case DHCP_STATE_RENEWING: - case DHCP_STATE_REBINDING: - - r = client_handle_ack(client, message, len); - if (r >= 0) { - client->timeout_resend = - sd_event_source_unref(client->timeout_resend); - client->receive_message = - sd_event_source_unref(client->receive_message); - client->fd = asynchronous_close(client->fd); - - if (IN_SET(client->state, DHCP_STATE_REQUESTING, - DHCP_STATE_REBOOTING)) - notify_event = DHCP_EVENT_IP_ACQUIRE; - else if (r != DHCP_EVENT_IP_ACQUIRE) - notify_event = r; - - client->state = DHCP_STATE_BOUND; - client->attempt = 1; - - client->last_addr = client->lease->address; - - r = client_set_lease_timeouts(client); - if (r < 0) { - log_dhcp_client(client, "could not set lease timeouts"); - goto error; - } - - r = dhcp_network_bind_udp_socket(client->lease->address, - DHCP_PORT_CLIENT); - if (r < 0) { - log_dhcp_client(client, "could not bind UDP socket"); - goto error; - } - - client->fd = r; - - client_initialize_io_events(client, client_receive_message_udp); - - if (notify_event) { - client_notify(client, notify_event); - if (client->state == DHCP_STATE_STOPPED) - return 0; - } - - } else if (r == -EADDRNOTAVAIL) { - /* got a NAK, let's restart the client */ - client->timeout_resend = - sd_event_source_unref(client->timeout_resend); - - r = client_initialize(client); - if (r < 0) - goto error; - - r = client_start(client); - if (r < 0) - goto error; - - log_dhcp_client(client, "REBOOTED"); - - return 0; - } else if (r == -ENOMSG) - /* invalid message, let's ignore it */ - return 0; - - break; - - case DHCP_STATE_BOUND: - r = client_handle_forcerenew(client, message, len); - if (r >= 0) { - r = client_timeout_t1(NULL, 0, client); - if (r < 0) - goto error; - } else if (r == -ENOMSG) - /* invalid message, let's ignore it */ - return 0; - - break; - - case DHCP_STATE_INIT: - case DHCP_STATE_INIT_REBOOT: - - break; - - case DHCP_STATE_STOPPED: - r = -EINVAL; - goto error; - } - -error: - if (r < 0) - client_stop(client, r); - - return r; -} - -static int client_receive_message_udp(sd_event_source *s, int fd, - uint32_t revents, void *userdata) { - sd_dhcp_client *client = userdata; - _cleanup_free_ DHCPMessage *message = NULL; - int buflen = 0, len, r; - const struct ether_addr zero_mac = { { 0, 0, 0, 0, 0, 0 } }; - bool expect_chaddr; - uint8_t expected_hlen = 0; - - assert(s); - assert(client); - - r = ioctl(fd, FIONREAD, &buflen); - if (r < 0) - return r; - - if (buflen < 0) - /* this can't be right */ - return -EIO; - - message = malloc0(buflen); - if (!message) - return -ENOMEM; - - len = read(fd, message, buflen); - if (len < 0) { - log_dhcp_client(client, "could not receive message from UDP " - "socket: %m"); - return 0; - } else if ((size_t)len < sizeof(DHCPMessage)) { - log_dhcp_client(client, "too small to be a DHCP message: ignoring"); - return 0; - } - - if (be32toh(message->magic) != DHCP_MAGIC_COOKIE) { - log_dhcp_client(client, "not a DHCP message: ignoring"); - return 0; - } - - if (message->op != BOOTREPLY) { - log_dhcp_client(client, "not a BOOTREPLY message: ignoring"); - return 0; - } - - if (message->htype != client->arp_type) { - log_dhcp_client(client, "packet type does not match client type"); - return 0; - } - - if (client->arp_type == ARPHRD_ETHER) { - expected_hlen = ETH_ALEN; - expect_chaddr = true; - } else { - /* Non-ethernet links expect zero chaddr */ - expected_hlen = 0; - expect_chaddr = false; - } - - if (message->hlen != expected_hlen) { - log_dhcp_client(client, "unexpected packet hlen %d", message->hlen); - return 0; - } - - if (memcmp(&message->chaddr[0], expect_chaddr ? - (void *)&client->mac_addr : - (void *)&zero_mac, - ETH_ALEN)) { - log_dhcp_client(client, "received chaddr does not match " - "expected: ignoring"); - return 0; - } - - if (client->state != DHCP_STATE_BOUND && - be32toh(message->xid) != client->xid) { - /* in BOUND state, we may receive FORCERENEW with xid set by server, - so ignore the xid in this case */ - log_dhcp_client(client, "received xid (%u) does not match " - "expected (%u): ignoring", - be32toh(message->xid), client->xid); - return 0; - } - - return client_handle_message(client, message, len); -} - -static int client_receive_message_raw(sd_event_source *s, int fd, - uint32_t revents, void *userdata) { - sd_dhcp_client *client = userdata; - _cleanup_free_ DHCPPacket *packet = NULL; - uint8_t cmsgbuf[CMSG_LEN(sizeof(struct tpacket_auxdata))]; - struct iovec iov = {}; - struct msghdr msg = { - .msg_iov = &iov, - .msg_iovlen = 1, - .msg_control = cmsgbuf, - .msg_controllen = sizeof(cmsgbuf), - }; - struct cmsghdr *cmsg; - bool checksum = true; - int buflen = 0, len, r; - - assert(s); - assert(client); - - r = ioctl(fd, FIONREAD, &buflen); - if (r < 0) - return r; - - if (buflen < 0) - /* this can't be right */ - return -EIO; - - packet = malloc0(buflen); - if (!packet) - return -ENOMEM; - - iov.iov_base = packet; - iov.iov_len = buflen; - - len = recvmsg(fd, &msg, 0); - if (len < 0) { - log_dhcp_client(client, "could not receive message from raw " - "socket: %m"); - return 0; - } else if ((size_t)len < sizeof(DHCPPacket)) - return 0; - - for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) { - if (cmsg->cmsg_level == SOL_PACKET && - cmsg->cmsg_type == PACKET_AUXDATA && - cmsg->cmsg_len == CMSG_LEN(sizeof(struct tpacket_auxdata))) { - struct tpacket_auxdata *aux = (struct tpacket_auxdata*)CMSG_DATA(cmsg); - - checksum = !(aux->tp_status & TP_STATUS_CSUMNOTREADY); - break; - } - } - - r = dhcp_packet_verify_headers(packet, len, checksum); - if (r < 0) - return 0; - - len -= DHCP_IP_UDP_SIZE; - - return client_handle_message(client, &packet->dhcp, len); -} - -int sd_dhcp_client_start(sd_dhcp_client *client) { - int r; - - assert_return(client, -EINVAL); - - r = client_initialize(client); - if (r < 0) - return r; - - if (client->last_addr) - client->state = DHCP_STATE_INIT_REBOOT; - - r = client_start(client); - if (r >= 0) - log_dhcp_client(client, "STARTED on ifindex %i", client->index); - - return r; -} - -int sd_dhcp_client_stop(sd_dhcp_client *client) { - DHCP_CLIENT_DONT_DESTROY(client); - - assert_return(client, -EINVAL); - - client_stop(client, DHCP_EVENT_STOP); - client->state = DHCP_STATE_STOPPED; - - return 0; -} - -int sd_dhcp_client_attach_event(sd_dhcp_client *client, sd_event *event, - int priority) { - int r; - - assert_return(client, -EINVAL); - assert_return(!client->event, -EBUSY); - - if (event) - client->event = sd_event_ref(event); - else { - r = sd_event_default(&client->event); - if (r < 0) - return 0; - } - - client->event_priority = priority; - - return 0; -} - -int sd_dhcp_client_detach_event(sd_dhcp_client *client) { - assert_return(client, -EINVAL); - - client->event = sd_event_unref(client->event); - - return 0; -} - -sd_event *sd_dhcp_client_get_event(sd_dhcp_client *client) { - if (!client) - return NULL; - - return client->event; -} - -sd_dhcp_client *sd_dhcp_client_ref(sd_dhcp_client *client) { - if (client) - assert_se(REFCNT_INC(client->n_ref) >= 2); - - return client; -} - -sd_dhcp_client *sd_dhcp_client_unref(sd_dhcp_client *client) { - if (client && REFCNT_DEC(client->n_ref) == 0) { - log_dhcp_client(client, "FREE"); - - client_initialize(client); - - client->receive_message = - sd_event_source_unref(client->receive_message); - - sd_dhcp_client_detach_event(client); - - sd_dhcp_lease_unref(client->lease); - - free(client->req_opts); - free(client->hostname); - free(client->vendor_class_identifier); - free(client); - } - - return NULL; -} - -int sd_dhcp_client_new(sd_dhcp_client **ret) { - _cleanup_dhcp_client_unref_ sd_dhcp_client *client = NULL; - - assert_return(ret, -EINVAL); - - client = new0(sd_dhcp_client, 1); - if (!client) - return -ENOMEM; - - client->n_ref = REFCNT_INIT; - client->state = DHCP_STATE_INIT; - client->index = -1; - client->fd = -1; - client->attempt = 1; - client->mtu = DHCP_DEFAULT_MIN_SIZE; - - client->req_opts_size = ELEMENTSOF(default_req_opts); - - client->req_opts = memdup(default_req_opts, client->req_opts_size); - if (!client->req_opts) - return -ENOMEM; - - *ret = client; - client = NULL; - - return 0; -} diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c deleted file mode 100644 index fa1fa112b1..0000000000 --- a/src/libsystemd-network/sd-dhcp-lease.c +++ /dev/null @@ -1,865 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <stdio.h> -#include <arpa/inet.h> - -#include "fileio.h" -#include "unaligned.h" -#include "in-addr-util.h" - -#include "dhcp-protocol.h" -#include "dhcp-lease-internal.h" -#include "sd-dhcp-lease.h" -#include "network-internal.h" - -int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - addr->s_addr = lease->address; - - return 0; -} - -int sd_dhcp_lease_get_lifetime(sd_dhcp_lease *lease, uint32_t *lifetime) { - assert_return(lease, -EINVAL); - assert_return(lifetime, -EINVAL); - - *lifetime = lease->lifetime; - - return 0; -} - -int sd_dhcp_lease_get_mtu(sd_dhcp_lease *lease, uint16_t *mtu) { - assert_return(lease, -EINVAL); - assert_return(mtu, -EINVAL); - - if (lease->mtu) - *mtu = lease->mtu; - else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_dns(sd_dhcp_lease *lease, const struct in_addr **addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - if (lease->dns_size) { - *addr = lease->dns; - return lease->dns_size; - } else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_ntp(sd_dhcp_lease *lease, const struct in_addr **addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - if (lease->ntp_size) { - *addr = lease->ntp; - return lease->ntp_size; - } else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_domainname(sd_dhcp_lease *lease, const char **domainname) { - assert_return(lease, -EINVAL); - assert_return(domainname, -EINVAL); - - if (lease->domainname) - *domainname = lease->domainname; - else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_hostname(sd_dhcp_lease *lease, const char **hostname) { - assert_return(lease, -EINVAL); - assert_return(hostname, -EINVAL); - - if (lease->hostname) - *hostname = lease->hostname; - else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_root_path(sd_dhcp_lease *lease, const char **root_path) { - assert_return(lease, -EINVAL); - assert_return(root_path, -EINVAL); - - if (lease->root_path) - *root_path = lease->root_path; - else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_router(sd_dhcp_lease *lease, struct in_addr *addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - if (lease->router != INADDR_ANY) - addr->s_addr = lease->router; - else - return -ENOENT; - - return 0; -} - -int sd_dhcp_lease_get_netmask(sd_dhcp_lease *lease, struct in_addr *addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - addr->s_addr = lease->subnet_mask; - - return 0; -} - -int sd_dhcp_lease_get_server_identifier(sd_dhcp_lease *lease, struct in_addr *addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - addr->s_addr = lease->server_address; - - return 0; -} - -int sd_dhcp_lease_get_next_server(sd_dhcp_lease *lease, struct in_addr *addr) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - - addr->s_addr = lease->next_server; - - return 0; -} - -int sd_dhcp_lease_get_routes(sd_dhcp_lease *lease, struct sd_dhcp_route **routes) { - - assert_return(lease, -EINVAL); - assert_return(routes, -EINVAL); - - if (lease->static_route_size) { - *routes = lease->static_route; - return lease->static_route_size; - } else - return -ENOENT; - - return 0; -} - -sd_dhcp_lease *sd_dhcp_lease_ref(sd_dhcp_lease *lease) { - if (lease) - assert_se(REFCNT_INC(lease->n_ref) >= 2); - - return lease; -} - -sd_dhcp_lease *sd_dhcp_lease_unref(sd_dhcp_lease *lease) { - if (lease && REFCNT_DEC(lease->n_ref) == 0) { - free(lease->hostname); - free(lease->domainname); - free(lease->dns); - free(lease->ntp); - free(lease->static_route); - free(lease->client_id); - free(lease); - } - - return NULL; -} - -static void lease_parse_u32(const uint8_t *option, size_t len, uint32_t *ret, uint32_t min) { - assert(option); - assert(ret); - - if (len == 4) { - *ret = unaligned_read_be32((be32_t*) option); - - if (*ret < min) - *ret = min; - } -} - -static void lease_parse_s32(const uint8_t *option, size_t len, int32_t *ret) { - lease_parse_u32(option, len, (uint32_t *)ret, 0); -} - -static void lease_parse_u16(const uint8_t *option, size_t len, uint16_t *ret, uint16_t min) { - assert(option); - assert(ret); - - if (len == 2) { - *ret = unaligned_read_be16((be16_t*) option); - - if (*ret < min) - *ret = min; - } -} - -static void lease_parse_be32(const uint8_t *option, size_t len, be32_t *ret) { - assert(option); - assert(ret); - - if (len == 4) - memcpy(ret, option, 4); -} - -static void lease_parse_bool(const uint8_t *option, size_t len, bool *ret) { - assert(option); - assert(ret); - - if (len == 1) - *ret = !!(*option); -} - -static void lease_parse_u8(const uint8_t *option, size_t len, uint8_t *ret, uint8_t min) { - assert(option); - assert(ret); - - if (len == 1) { - *ret = *option; - - if (*ret < min) - *ret = min; - } -} - -static int lease_parse_string(const uint8_t *option, size_t len, char **ret) { - assert(option); - assert(ret); - - if (len >= 1) { - char *string; - - string = strndup((const char *)option, len); - if (!string) - return -errno; - - free(*ret); - *ret = string; - } - - return 0; -} - -static int lease_parse_in_addrs_aux(const uint8_t *option, size_t len, struct in_addr **ret, size_t *ret_size, size_t mult) { - assert(option); - assert(ret); - assert(ret_size); - - if (len && !(len % (4 * mult))) { - size_t size; - struct in_addr *addresses; - - size = len / 4; - - addresses = newdup(struct in_addr, option, size); - if (!addresses) - return -ENOMEM; - - free(*ret); - *ret = addresses; - *ret_size = size; - } - - return 0; -} - -static int lease_parse_in_addrs(const uint8_t *option, size_t len, struct in_addr **ret, size_t *ret_size) { - return lease_parse_in_addrs_aux(option, len, ret, ret_size, 1); -} - -static int lease_parse_in_addrs_pairs(const uint8_t *option, size_t len, struct in_addr **ret, size_t *ret_size) { - return lease_parse_in_addrs_aux(option, len, ret, ret_size, 2); -} - -static int lease_parse_routes(const uint8_t *option, size_t len, struct sd_dhcp_route **routes, - size_t *routes_size, size_t *routes_allocated) { - - struct in_addr addr; - - assert(option); - assert(routes); - assert(routes_size); - assert(routes_allocated); - - if (!len) - return 0; - - if (len % 8 != 0) - return -EINVAL; - - if (!GREEDY_REALLOC(*routes, *routes_allocated, *routes_size + (len / 8))) - return -ENOMEM; - - while (len >= 8) { - struct sd_dhcp_route *route = *routes + *routes_size; - int r; - - r = in_addr_default_prefixlen((struct in_addr*) option, &route->dst_prefixlen); - if (r < 0) { - log_error("Failed to determine destination prefix length from class based IP, ignoring"); - continue; - } - - lease_parse_be32(option, 4, &addr.s_addr); - route->dst_addr = inet_makeaddr(inet_netof(addr), 0); - option += 4; - - lease_parse_be32(option, 4, &route->gw_addr.s_addr); - option += 4; - - len -= 8; - (*routes_size)++; - } - - return 0; -} - -/* parses RFC3442 Classless Static Route Option */ -static int lease_parse_classless_routes(const uint8_t *option, size_t len, struct sd_dhcp_route **routes, - size_t *routes_size, size_t *routes_allocated) { - - assert(option); - assert(routes); - assert(routes_size); - assert(routes_allocated); - - /* option format: (subnet-mask-width significant-subnet-octets gateway-ip)* */ - - while (len > 0) { - uint8_t dst_octets; - struct sd_dhcp_route *route; - - if (!GREEDY_REALLOC(*routes, *routes_allocated, *routes_size + 1)) - return -ENOMEM; - - route = *routes + *routes_size; - - dst_octets = (*option == 0 ? 0 : ((*option - 1) / 8) + 1); - route->dst_prefixlen = *option; - option++; - len--; - - /* can't have more than 4 octets in IPv4 */ - if (dst_octets > 4 || len < dst_octets) - return -EINVAL; - - route->dst_addr.s_addr = 0; - memcpy(&route->dst_addr.s_addr, option, dst_octets); - option += dst_octets; - len -= dst_octets; - - if (len < 4) - return -EINVAL; - - lease_parse_be32(option, 4, &route->gw_addr.s_addr); - option += 4; - len -= 4; - - (*routes_size)++; - } - - return 0; -} - -int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option, - void *user_data) { - sd_dhcp_lease *lease = user_data; - int r; - - assert(lease); - - switch(code) { - - case DHCP_OPTION_TIME_OFFSET: - lease_parse_s32(option, len, &lease->time_offset); - - break; - - case DHCP_OPTION_INTERFACE_MTU_AGING_TIMEOUT: - lease_parse_u32(option, len, &lease->mtu_aging_timeout, 0); - - break; - - case DHCP_OPTION_IP_ADDRESS_LEASE_TIME: - lease_parse_u32(option, len, &lease->lifetime, 1); - - break; - - case DHCP_OPTION_SERVER_IDENTIFIER: - lease_parse_be32(option, len, &lease->server_address); - - break; - - case DHCP_OPTION_SUBNET_MASK: - lease_parse_be32(option, len, &lease->subnet_mask); - - break; - - case DHCP_OPTION_BROADCAST: - lease_parse_be32(option, len, &lease->broadcast); - - break; - - case DHCP_OPTION_ROUTER: - lease_parse_be32(option, len, &lease->router); - - break; - - case DHCP_OPTION_DOMAIN_NAME_SERVER: - r = lease_parse_in_addrs(option, len, &lease->dns, &lease->dns_size); - if (r < 0) - return r; - - break; - - case DHCP_OPTION_NTP_SERVER: - r = lease_parse_in_addrs(option, len, &lease->ntp, &lease->ntp_size); - if (r < 0) - return r; - - break; - - case DHCP_OPTION_POLICY_FILTER: - r = lease_parse_in_addrs_pairs(option, len, &lease->policy_filter, &lease->policy_filter_size); - if (r < 0) - return r; - - break; - - case DHCP_OPTION_STATIC_ROUTE: - r = lease_parse_routes(option, len, &lease->static_route, &lease->static_route_size, - &lease->static_route_allocated); - if (r < 0) - return r; - - break; - - case DHCP_OPTION_INTERFACE_MTU: - lease_parse_u16(option, len, &lease->mtu, 68); - - break; - - case DHCP_OPTION_INTERFACE_MDR: - lease_parse_u16(option, len, &lease->mdr, 576); - - break; - - case DHCP_OPTION_INTERFACE_TTL: - lease_parse_u8(option, len, &lease->ttl, 1); - - break; - - case DHCP_OPTION_BOOT_FILE_SIZE: - lease_parse_u16(option, len, &lease->boot_file_size, 0); - - break; - - case DHCP_OPTION_DOMAIN_NAME: - { - _cleanup_free_ char *domainname = NULL; - char *e; - - r = lease_parse_string(option, len, &domainname); - if (r < 0) - return r; - - /* Chop off trailing dot of domain name that some DHCP - * servers send us back. Internally we want to store - * host names without trailing dots and - * host_name_is_valid() doesn't accept them. */ - e = endswith(domainname, "."); - if (e) - *e = 0; - - if (!hostname_is_valid(domainname) || is_localhost(domainname)) - break; - - free(lease->domainname); - lease->domainname = domainname; - domainname = NULL; - - break; - } - case DHCP_OPTION_HOST_NAME: - { - _cleanup_free_ char *hostname = NULL; - char *e; - - r = lease_parse_string(option, len, &hostname); - if (r < 0) - return r; - - e = endswith(hostname, "."); - if (e) - *e = 0; - - if (!hostname_is_valid(hostname) || is_localhost(hostname)) - break; - - free(lease->hostname); - lease->hostname = hostname; - hostname = NULL; - - break; - } - case DHCP_OPTION_ROOT_PATH: - r = lease_parse_string(option, len, &lease->root_path); - if (r < 0) - return r; - - break; - - case DHCP_OPTION_RENEWAL_T1_TIME: - lease_parse_u32(option, len, &lease->t1, 1); - - break; - - case DHCP_OPTION_REBINDING_T2_TIME: - lease_parse_u32(option, len, &lease->t2, 1); - - break; - - case DHCP_OPTION_ENABLE_IP_FORWARDING: - lease_parse_bool(option, len, &lease->ip_forward); - - break; - - case DHCP_OPTION_ENABLE_IP_FORWARDING_NL: - lease_parse_bool(option, len, &lease->ip_forward_non_local); - - break; - - case DHCP_OPTION_CLASSLESS_STATIC_ROUTE: - r = lease_parse_classless_routes(option, len, &lease->static_route, &lease->static_route_size, - &lease->static_route_allocated); - if (r < 0) - return r; - - break; - } - - return 0; -} - -int dhcp_lease_new(sd_dhcp_lease **ret) { - sd_dhcp_lease *lease; - - lease = new0(sd_dhcp_lease, 1); - if (!lease) - return -ENOMEM; - - lease->router = INADDR_ANY; - lease->n_ref = REFCNT_INIT; - - *ret = lease; - return 0; -} - -int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - struct in_addr address; - const struct in_addr *addresses; - const uint8_t *client_id; - size_t client_id_len; - const char *string; - uint16_t mtu; - struct sd_dhcp_route *routes; - int r; - - assert(lease); - assert(lease_file); - - r = fopen_temporary(lease_file, &f, &temp_path); - if (r < 0) - goto finish; - - fchmod(fileno(f), 0644); - - r = sd_dhcp_lease_get_address(lease, &address); - if (r < 0) - goto finish; - - fprintf(f, - "# This is private data. Do not parse.\n" - "ADDRESS=%s\n", inet_ntoa(address)); - - r = sd_dhcp_lease_get_netmask(lease, &address); - if (r < 0) - goto finish; - - fprintf(f, "NETMASK=%s\n", inet_ntoa(address)); - - r = sd_dhcp_lease_get_router(lease, &address); - if (r >= 0) - fprintf(f, "ROUTER=%s\n", inet_ntoa(address)); - - r = sd_dhcp_lease_get_server_identifier(lease, &address); - if (r >= 0) - fprintf(f, "SERVER_ADDRESS=%s\n", - inet_ntoa(address)); - - r = sd_dhcp_lease_get_next_server(lease, &address); - if (r >= 0) - fprintf(f, "NEXT_SERVER=%s\n", inet_ntoa(address)); - - r = sd_dhcp_lease_get_mtu(lease, &mtu); - if (r >= 0) - fprintf(f, "MTU=%" PRIu16 "\n", mtu); - - fputs("DNS=", f); - r = sd_dhcp_lease_get_dns(lease, &addresses); - if (r >= 0) - serialize_in_addrs(f, addresses, r); - fputs("\n", f); - - fputs("NTP=", f); - r = sd_dhcp_lease_get_ntp(lease, &addresses); - if (r >= 0) - serialize_in_addrs(f, addresses, r); - fputs("\n", f); - - r = sd_dhcp_lease_get_domainname(lease, &string); - if (r >= 0) - fprintf(f, "DOMAINNAME=%s\n", string); - - r = sd_dhcp_lease_get_hostname(lease, &string); - if (r >= 0) - fprintf(f, "HOSTNAME=%s\n", string); - - r = sd_dhcp_lease_get_root_path(lease, &string); - if (r >= 0) - fprintf(f, "ROOT_PATH=%s\n", string); - - r = sd_dhcp_lease_get_routes(lease, &routes); - if (r >= 0) - serialize_dhcp_routes(f, "ROUTES", routes, r); - - r = sd_dhcp_lease_get_client_id(lease, &client_id, &client_id_len); - if (r >= 0) { - _cleanup_free_ char *client_id_hex; - - client_id_hex = hexmem (client_id, client_id_len); - if (!client_id_hex) { - r = -ENOMEM; - goto finish; - } - fprintf(f, "CLIENTID=%s\n", client_id_hex); - } - - r = 0; - - fflush(f); - - if (ferror(f) || rename(temp_path, lease_file) < 0) { - r = -errno; - unlink(lease_file); - unlink(temp_path); - } - -finish: - if (r < 0) - log_error_errno(r, "Failed to save lease data %s: %m", lease_file); - - return r; -} - -int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) { - _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL; - _cleanup_free_ char *address = NULL, *router = NULL, *netmask = NULL, - *server_address = NULL, *next_server = NULL, - *dns = NULL, *ntp = NULL, *mtu = NULL, - *routes = NULL, *client_id_hex = NULL; - struct in_addr addr; - int r; - - assert(lease_file); - assert(ret); - - r = dhcp_lease_new(&lease); - if (r < 0) - return r; - - r = parse_env_file(lease_file, NEWLINE, - "ADDRESS", &address, - "ROUTER", &router, - "NETMASK", &netmask, - "SERVER_IDENTIFIER", &server_address, - "NEXT_SERVER", &next_server, - "DNS", &dns, - "NTP", &ntp, - "MTU", &mtu, - "DOMAINNAME", &lease->domainname, - "HOSTNAME", &lease->hostname, - "ROOT_PATH", &lease->root_path, - "ROUTES", &routes, - "CLIENTID", &client_id_hex, - NULL); - if (r < 0) { - if (r == -ENOENT) - return 0; - - return log_error_errno(r, "Failed to read %s: %m", lease_file); - } - - r = inet_pton(AF_INET, address, &addr); - if (r < 0) - return r; - - lease->address = addr.s_addr; - - if (router) { - r = inet_pton(AF_INET, router, &addr); - if (r < 0) - return r; - - lease->router = addr.s_addr; - } - - r = inet_pton(AF_INET, netmask, &addr); - if (r < 0) - return r; - - lease->subnet_mask = addr.s_addr; - - if (server_address) { - r = inet_pton(AF_INET, server_address, &addr); - if (r < 0) - return r; - - lease->server_address = addr.s_addr; - } - - if (next_server) { - r = inet_pton(AF_INET, next_server, &addr); - if (r < 0) - return r; - - lease->next_server = addr.s_addr; - } - - if (dns) { - r = deserialize_in_addrs(&lease->dns, dns); - if (r < 0) - return r; - - lease->dns_size = r; - } - - if (ntp) { - r = deserialize_in_addrs(&lease->ntp, ntp); - if (r < 0) - return r; - - lease->ntp_size = r; - } - - if (mtu) { - uint16_t u; - if (sscanf(mtu, "%" SCNu16, &u) > 0) - lease->mtu = u; - } - - if (routes) { - r = deserialize_dhcp_routes(&lease->static_route, &lease->static_route_size, - &lease->static_route_allocated, routes); - if (r < 0) - return r; - } - - if (client_id_hex) { - if (strlen (client_id_hex) % 2) - return -EINVAL; - - lease->client_id = unhexmem (client_id_hex, strlen (client_id_hex)); - if (!lease->client_id) - return -ENOMEM; - lease->client_id_len = strlen (client_id_hex) / 2; - } - - *ret = lease; - lease = NULL; - - return 0; -} - -int dhcp_lease_set_default_subnet_mask(sd_dhcp_lease *lease) { - struct in_addr address; - struct in_addr mask; - int r; - - assert(lease); - - address.s_addr = lease->address; - - /* fall back to the default subnet masks based on address class */ - r = in_addr_default_subnet_mask(&address, &mask); - if (r < 0) - return r; - - lease->subnet_mask = mask.s_addr; - - return 0; -} - -int sd_dhcp_lease_get_client_id(sd_dhcp_lease *lease, const uint8_t **client_id, - size_t *client_id_len) { - assert_return(lease, -EINVAL); - assert_return(client_id, -EINVAL); - assert_return(client_id_len, -EINVAL); - - *client_id = lease->client_id; - *client_id_len = lease->client_id_len; - return 0; -} - -int dhcp_lease_set_client_id(sd_dhcp_lease *lease, const uint8_t *client_id, - size_t client_id_len) { - assert_return(lease, -EINVAL); - assert_return((!client_id && !client_id_len) || - (client_id && client_id_len), -EINVAL); - - free (lease->client_id); - lease->client_id = NULL; - lease->client_id_len = 0; - - if (client_id) { - lease->client_id = memdup (client_id, client_id_len); - lease->client_id_len = client_id_len; - } - - return 0; -} diff --git a/src/libsystemd-network/sd-dhcp-server.c b/src/libsystemd-network/sd-dhcp-server.c deleted file mode 100644 index a0a2320efa..0000000000 --- a/src/libsystemd-network/sd-dhcp-server.c +++ /dev/null @@ -1,991 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/ioctl.h> - -#include "siphash24.h" - -#include "sd-dhcp-server.h" -#include "dhcp-server-internal.h" -#include "dhcp-internal.h" - -#define DHCP_DEFAULT_LEASE_TIME 3600 /* one hour */ - -int sd_dhcp_server_set_lease_pool(sd_dhcp_server *server, - struct in_addr *address, - size_t size) { - assert_return(server, -EINVAL); - assert_return(address, -EINVAL); - assert_return(address->s_addr, -EINVAL); - assert_return(size, -EINVAL); - assert_return(server->pool_start == htobe32(INADDR_ANY), -EBUSY); - assert_return(!server->pool_size, -EBUSY); - assert_return(!server->bound_leases, -EBUSY); - - server->bound_leases = new0(DHCPLease*, size); - if (!server->bound_leases) - return -ENOMEM; - - server->pool_start = address->s_addr; - server->pool_size = size; - - return 0; -} - -int sd_dhcp_server_set_address(sd_dhcp_server *server, struct in_addr *address, - unsigned char prefixlen) { - assert_return(server, -EINVAL); - assert_return(address, -EINVAL); - assert_return(address->s_addr, -EINVAL); - assert_return(prefixlen <= 32, -ERANGE); - assert_return(server->address == htobe32(INADDR_ANY), -EBUSY); - assert_return(server->netmask == htobe32(INADDR_ANY), -EBUSY); - - server->address = address->s_addr; - server->netmask = htobe32(0xfffffffflu << (32 - prefixlen)); - - return 0; -} - -bool sd_dhcp_server_is_running(sd_dhcp_server *server) { - assert_return(server, -EINVAL); - - return !!server->receive_message; -} - -sd_dhcp_server *sd_dhcp_server_ref(sd_dhcp_server *server) { - if (server) - assert_se(REFCNT_INC(server->n_ref) >= 2); - - return server; -} - -unsigned long client_id_hash_func(const void *p, - const uint8_t hash_key[HASH_KEY_SIZE]) { - uint64_t u; - const DHCPClientId *id = p; - - assert(id); - assert(id->length); - assert(id->data); - - siphash24((uint8_t*) &u, id->data, id->length, hash_key); - - return (unsigned long) u; -} - -int client_id_compare_func(const void *_a, const void *_b) { - const DHCPClientId *a, *b; - - a = _a; - b = _b; - - assert(!a->length || a->data); - assert(!b->length || b->data); - - if (a->length != b->length) - return a->length < b->length ? -1 : 1; - - return memcmp(a->data, b->data, a->length); -} - -static const struct hash_ops client_id_hash_ops = { - .hash = client_id_hash_func, - .compare = client_id_compare_func -}; - -static void dhcp_lease_free(DHCPLease *lease) { - if (!lease) - return; - - free(lease->client_id.data); - free(lease); -} - -sd_dhcp_server *sd_dhcp_server_unref(sd_dhcp_server *server) { - DHCPLease *lease; - - if (!server) - return NULL; - - if (REFCNT_DEC(server->n_ref) > 0) - return NULL; - - log_dhcp_server(server, "UNREF"); - - sd_dhcp_server_stop(server); - - sd_event_unref(server->event); - - while ((lease = hashmap_steal_first(server->leases_by_client_id))) - dhcp_lease_free(lease); - hashmap_free(server->leases_by_client_id); - - free(server->bound_leases); - free(server); - - return NULL; -} - -int sd_dhcp_server_new(sd_dhcp_server **ret, int ifindex) { - _cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL; - - assert_return(ret, -EINVAL); - assert_return(ifindex > 0, -EINVAL); - - server = new0(sd_dhcp_server, 1); - if (!server) - return -ENOMEM; - - server->n_ref = REFCNT_INIT; - server->fd_raw = -1; - server->fd = -1; - server->address = htobe32(INADDR_ANY); - server->netmask = htobe32(INADDR_ANY); - server->index = ifindex; - server->leases_by_client_id = hashmap_new(&client_id_hash_ops); - - *ret = server; - server = NULL; - - return 0; -} - -int sd_dhcp_server_attach_event(sd_dhcp_server *server, sd_event *event, - int priority) { - int r; - - assert_return(server, -EINVAL); - assert_return(!server->event, -EBUSY); - - if (event) - server->event = sd_event_ref(event); - else { - r = sd_event_default(&server->event); - if (r < 0) - return r; - } - - server->event_priority = priority; - - return 0; -} - -int sd_dhcp_server_detach_event(sd_dhcp_server *server) { - assert_return(server, -EINVAL); - - server->event = sd_event_unref(server->event); - - return 0; -} - -sd_event *sd_dhcp_server_get_event(sd_dhcp_server *server) { - assert_return(server, NULL); - - return server->event; -} - -int sd_dhcp_server_stop(sd_dhcp_server *server) { - assert_return(server, -EINVAL); - - server->receive_message = - sd_event_source_unref(server->receive_message); - - server->fd_raw = safe_close(server->fd_raw); - server->fd = safe_close(server->fd); - - log_dhcp_server(server, "STOPPED"); - - return 0; -} - -static int dhcp_server_send_unicast_raw(sd_dhcp_server *server, - DHCPPacket *packet, size_t len) { - union sockaddr_union link = { - .ll.sll_family = AF_PACKET, - .ll.sll_protocol = htons(ETH_P_IP), - .ll.sll_ifindex = server->index, - .ll.sll_halen = ETH_ALEN, - }; - int r; - - assert(server); - assert(server->index > 0); - assert(server->address); - assert(packet); - assert(len > sizeof(DHCPPacket)); - - memcpy(&link.ll.sll_addr, &packet->dhcp.chaddr, ETH_ALEN); - - dhcp_packet_append_ip_headers(packet, server->address, DHCP_PORT_SERVER, - packet->dhcp.yiaddr, - DHCP_PORT_CLIENT, len); - - r = dhcp_network_send_raw_socket(server->fd_raw, &link, packet, len); - if (r < 0) - return r; - - return 0; -} - -static int dhcp_server_send_udp(sd_dhcp_server *server, be32_t destination, - DHCPMessage *message, size_t len) { - union sockaddr_union dest = { - .in.sin_family = AF_INET, - .in.sin_port = htobe16(DHCP_PORT_CLIENT), - .in.sin_addr.s_addr = destination, - }; - struct iovec iov = { - .iov_base = message, - .iov_len = len, - }; - uint8_t cmsgbuf[CMSG_LEN(sizeof(struct in_pktinfo))] = {}; - struct msghdr msg = { - .msg_name = &dest, - .msg_namelen = sizeof(dest.in), - .msg_iov = &iov, - .msg_iovlen = 1, - .msg_control = cmsgbuf, - .msg_controllen = sizeof(cmsgbuf), - }; - struct cmsghdr *cmsg; - struct in_pktinfo *pktinfo; - int r; - - assert(server); - assert(server->fd > 0); - assert(message); - assert(len > sizeof(DHCPMessage)); - - cmsg = CMSG_FIRSTHDR(&msg); - assert(cmsg); - - cmsg->cmsg_level = IPPROTO_IP; - cmsg->cmsg_type = IP_PKTINFO; - cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo)); - - /* we attach source interface and address info to the message - rather than binding the socket. This will be mostly useful - when we gain support for arbitrary number of server addresses - */ - pktinfo = (struct in_pktinfo*) CMSG_DATA(cmsg); - assert(pktinfo); - - pktinfo->ipi_ifindex = server->index; - pktinfo->ipi_spec_dst.s_addr = server->address; - - r = sendmsg(server->fd, &msg, 0); - if (r < 0) - return -errno; - - return 0; -} - -static bool requested_broadcast(DHCPRequest *req) { - assert(req); - - return req->message->flags & htobe16(0x8000); -} - -int dhcp_server_send_packet(sd_dhcp_server *server, - DHCPRequest *req, DHCPPacket *packet, - int type, size_t optoffset) { - be32_t destination = INADDR_ANY; - int r; - - assert(server); - assert(req); - assert(req->max_optlen); - assert(optoffset <= req->max_optlen); - assert(packet); - - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &optoffset, 0, - DHCP_OPTION_SERVER_IDENTIFIER, - 4, &server->address); - if (r < 0) - return r; - - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &optoffset, 0, - DHCP_OPTION_END, 0, NULL); - if (r < 0) - return r; - - /* RFC 2131 Section 4.1 - - If the ’giaddr’ field in a DHCP message from a client is non-zero, - the server sends any return messages to the ’DHCP server’ port on the - BOOTP relay agent whose address appears in ’giaddr’. If the ’giaddr’ - field is zero and the ’ciaddr’ field is nonzero, then the server - unicasts DHCPOFFER and DHCPACK messages to the address in ’ciaddr’. - If ’giaddr’ is zero and ’ciaddr’ is zero, and the broadcast bit is - set, then the server broadcasts DHCPOFFER and DHCPACK messages to - 0xffffffff. If the broadcast bit is not set and ’giaddr’ is zero and - ’ciaddr’ is zero, then the server unicasts DHCPOFFER and DHCPACK - messages to the client’s hardware address and ’yiaddr’ address. In - all cases, when ’giaddr’ is zero, the server broadcasts any DHCPNAK - messages to 0xffffffff. - - Section 4.3.2 - - If ’giaddr’ is set in the DHCPREQUEST message, the client is on a - different subnet. The server MUST set the broadcast bit in the - DHCPNAK, so that the relay agent will broadcast the DHCPNAK to the - client, because the client may not have a correct network address - or subnet mask, and the client may not be answering ARP requests. - */ - if (req->message->giaddr) { - destination = req->message->giaddr; - if (type == DHCP_NAK) - packet->dhcp.flags = htobe16(0x8000); - } else if (req->message->ciaddr && type != DHCP_NAK) - destination = req->message->ciaddr; - - if (destination != INADDR_ANY) - return dhcp_server_send_udp(server, destination, &packet->dhcp, - sizeof(DHCPMessage) + optoffset); - else if (requested_broadcast(req) || type == DHCP_NAK) - return dhcp_server_send_udp(server, INADDR_BROADCAST, - &packet->dhcp, - sizeof(DHCPMessage) + optoffset); - else - /* we cannot send UDP packet to specific MAC address when the - address is not yet configured, so must fall back to raw - packets */ - return dhcp_server_send_unicast_raw(server, packet, - sizeof(DHCPPacket) + optoffset); -} - -static int server_message_init(sd_dhcp_server *server, DHCPPacket **ret, - uint8_t type, size_t *_optoffset, - DHCPRequest *req) { - _cleanup_free_ DHCPPacket *packet = NULL; - size_t optoffset = 0; - int r; - - assert(server); - assert(ret); - assert(_optoffset); - assert(IN_SET(type, DHCP_OFFER, DHCP_ACK, DHCP_NAK)); - - packet = malloc0(sizeof(DHCPPacket) + req->max_optlen); - if (!packet) - return -ENOMEM; - - r = dhcp_message_init(&packet->dhcp, BOOTREPLY, - be32toh(req->message->xid), type, ARPHRD_ETHER, - req->max_optlen, &optoffset); - if (r < 0) - return r; - - packet->dhcp.flags = req->message->flags; - packet->dhcp.giaddr = req->message->giaddr; - memcpy(&packet->dhcp.chaddr, &req->message->chaddr, ETH_ALEN); - - *_optoffset = optoffset; - *ret = packet; - packet = NULL; - - return 0; -} - -static int server_send_offer(sd_dhcp_server *server, DHCPRequest *req, - be32_t address) { - _cleanup_free_ DHCPPacket *packet = NULL; - size_t offset; - be32_t lease_time; - int r; - - r = server_message_init(server, &packet, DHCP_OFFER, &offset, req); - if (r < 0) - return r; - - packet->dhcp.yiaddr = address; - - lease_time = htobe32(req->lifetime); - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &offset, 0, - DHCP_OPTION_IP_ADDRESS_LEASE_TIME, 4, - &lease_time); - if (r < 0) - return r; - - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &offset, 0, - DHCP_OPTION_SUBNET_MASK, 4, &server->netmask); - if (r < 0) - return r; - - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &offset, 0, - DHCP_OPTION_ROUTER, 4, &server->address); - if (r < 0) - return r; - - r = dhcp_server_send_packet(server, req, packet, DHCP_OFFER, offset); - if (r < 0) - return r; - - return 0; -} - -static int server_send_ack(sd_dhcp_server *server, DHCPRequest *req, - be32_t address) { - _cleanup_free_ DHCPPacket *packet = NULL; - size_t offset; - be32_t lease_time; - int r; - - r = server_message_init(server, &packet, DHCP_ACK, &offset, req); - if (r < 0) - return r; - - packet->dhcp.yiaddr = address; - - lease_time = htobe32(req->lifetime); - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &offset, 0, - DHCP_OPTION_IP_ADDRESS_LEASE_TIME, 4, - &lease_time); - if (r < 0) - return r; - - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &offset, 0, - DHCP_OPTION_SUBNET_MASK, 4, &server->netmask); - if (r < 0) - return r; - - r = dhcp_option_append(&packet->dhcp, req->max_optlen, &offset, 0, - DHCP_OPTION_ROUTER, 4, &server->address); - if (r < 0) - return r; - - r = dhcp_server_send_packet(server, req, packet, DHCP_ACK, offset); - if (r < 0) - return r; - - return 0; -} - -static int server_send_nak(sd_dhcp_server *server, DHCPRequest *req) { - _cleanup_free_ DHCPPacket *packet = NULL; - size_t offset; - int r; - - r = server_message_init(server, &packet, DHCP_NAK, &offset, req); - if (r < 0) - return r; - - r = dhcp_server_send_packet(server, req, packet, DHCP_NAK, offset); - if (r < 0) - return r; - - return 0; -} - -static int server_send_forcerenew(sd_dhcp_server *server, be32_t address, - be32_t gateway, uint8_t chaddr[]) { - _cleanup_free_ DHCPPacket *packet = NULL; - size_t optoffset = 0; - int r; - - assert(server); - assert(address != INADDR_ANY); - assert(chaddr); - - packet = malloc0(sizeof(DHCPPacket) + DHCP_MIN_OPTIONS_SIZE); - if (!packet) - return -ENOMEM; - - r = dhcp_message_init(&packet->dhcp, BOOTREPLY, 0, - DHCP_FORCERENEW, ARPHRD_ETHER, - DHCP_MIN_OPTIONS_SIZE, &optoffset); - if (r < 0) - return r; - - r = dhcp_option_append(&packet->dhcp, DHCP_MIN_OPTIONS_SIZE, - &optoffset, 0, DHCP_OPTION_END, 0, NULL); - if (r < 0) - return r; - - memcpy(&packet->dhcp.chaddr, chaddr, ETH_ALEN); - - r = dhcp_server_send_udp(server, address, &packet->dhcp, - sizeof(DHCPMessage) + optoffset); - if (r < 0) - return r; - - return 0; -} - -static int parse_request(uint8_t code, uint8_t len, const uint8_t *option, - void *user_data) { - DHCPRequest *req = user_data; - - assert(req); - - switch(code) { - case DHCP_OPTION_IP_ADDRESS_LEASE_TIME: - if (len == 4) - req->lifetime = be32toh(*(be32_t*)option); - - break; - case DHCP_OPTION_REQUESTED_IP_ADDRESS: - if (len == 4) - req->requested_ip = *(be32_t*)option; - - break; - case DHCP_OPTION_SERVER_IDENTIFIER: - if (len == 4) - req->server_id = *(be32_t*)option; - - break; - case DHCP_OPTION_CLIENT_IDENTIFIER: - if (len >= 2) { - uint8_t *data; - - data = memdup(option, len); - if (!data) - return -ENOMEM; - - free(req->client_id.data); - req->client_id.data = data; - req->client_id.length = len; - } - - break; - case DHCP_OPTION_MAXIMUM_MESSAGE_SIZE: - if (len == 2) - req->max_optlen = be16toh(*(be16_t*)option) - - - sizeof(DHCPPacket); - - break; - } - - return 0; -} - -static void dhcp_request_free(DHCPRequest *req) { - if (!req) - return; - - free(req->client_id.data); - free(req); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(DHCPRequest*, dhcp_request_free); -#define _cleanup_dhcp_request_free_ _cleanup_(dhcp_request_freep) - -static int ensure_sane_request(DHCPRequest *req, DHCPMessage *message) { - assert(req); - assert(message); - - req->message = message; - - /* set client id based on MAC address if client did not send an explicit - one */ - if (!req->client_id.data) { - uint8_t *data; - - data = new0(uint8_t, ETH_ALEN + 1); - if (!data) - return -ENOMEM; - - req->client_id.length = ETH_ALEN + 1; - req->client_id.data = data; - req->client_id.data[0] = 0x01; - memcpy(&req->client_id.data[1], &message->chaddr, ETH_ALEN); - } - - if (req->max_optlen < DHCP_MIN_OPTIONS_SIZE) - req->max_optlen = DHCP_MIN_OPTIONS_SIZE; - - if (!req->lifetime) - req->lifetime = DHCP_DEFAULT_LEASE_TIME; - - return 0; -} - -static int get_pool_offset(sd_dhcp_server *server, be32_t requested_ip) { - assert(server); - - if (!server->pool_size) - return -EINVAL; - - if (be32toh(requested_ip) < be32toh(server->pool_start) || - be32toh(requested_ip) >= be32toh(server->pool_start) + - + server->pool_size) - return -EINVAL; - - return be32toh(requested_ip) - be32toh(server->pool_start); -} - -int dhcp_server_handle_message(sd_dhcp_server *server, DHCPMessage *message, - size_t length) { - _cleanup_dhcp_request_free_ DHCPRequest *req = NULL; - DHCPLease *existing_lease; - int type, r; - - assert(server); - assert(message); - - if (message->op != BOOTREQUEST || - message->htype != ARPHRD_ETHER || - message->hlen != ETHER_ADDR_LEN) - return 0; - - req = new0(DHCPRequest, 1); - if (!req) - return -ENOMEM; - - type = dhcp_option_parse(message, length, parse_request, req); - if (type < 0) - return 0; - - r = ensure_sane_request(req, message); - if (r < 0) - /* this only fails on critical errors */ - return r; - - existing_lease = hashmap_get(server->leases_by_client_id, - &req->client_id); - - switch(type) { - case DHCP_DISCOVER: - { - be32_t address = INADDR_ANY; - unsigned i; - - log_dhcp_server(server, "DISCOVER (0x%x)", - be32toh(req->message->xid)); - - if (!server->pool_size) - /* no pool allocated */ - return 0; - - /* for now pick a random free address from the pool */ - if (existing_lease) - address = existing_lease->address; - else { - for (i = 0; i < server->pool_size; i++) { - if (!server->bound_leases[server->next_offer]) { - address = htobe32(be32toh(server->pool_start) + server->next_offer); - break; - } else - server->next_offer = (server->next_offer + 1) % server->pool_size; - } - } - - if (address == INADDR_ANY) - /* no free addresses left */ - return 0; - - r = server_send_offer(server, req, address); - if (r < 0) { - /* this only fails on critical errors */ - log_dhcp_server(server, "could not send offer: %s", - strerror(-r)); - return r; - } else { - log_dhcp_server(server, "OFFER (0x%x)", - be32toh(req->message->xid)); - return DHCP_OFFER; - } - - break; - } - case DHCP_DECLINE: - log_dhcp_server(server, "DECLINE (0x%x)", - be32toh(req->message->xid)); - - /* TODO: make sure we don't offer this address again */ - - return 1; - - break; - case DHCP_REQUEST: - { - be32_t address; - bool init_reboot = false; - int pool_offset; - - /* see RFC 2131, section 4.3.2 */ - - if (req->server_id) { - log_dhcp_server(server, "REQUEST (selecting) (0x%x)", - be32toh(req->message->xid)); - - /* SELECTING */ - if (req->server_id != server->address) - /* client did not pick us */ - return 0; - - if (req->message->ciaddr) - /* this MUST be zero */ - return 0; - - if (!req->requested_ip) - /* this must be filled in with the yiaddr - from the chosen OFFER */ - return 0; - - address = req->requested_ip; - } else if (req->requested_ip) { - log_dhcp_server(server, "REQUEST (init-reboot) (0x%x)", - be32toh(req->message->xid)); - - /* INIT-REBOOT */ - if (req->message->ciaddr) - /* this MUST be zero */ - return 0; - - /* TODO: check more carefully if IP is correct */ - address = req->requested_ip; - init_reboot = true; - } else { - log_dhcp_server(server, "REQUEST (rebinding/renewing) (0x%x)", - be32toh(req->message->xid)); - - /* REBINDING / RENEWING */ - if (!req->message->ciaddr) - /* this MUST be filled in with clients IP address */ - return 0; - - address = req->message->ciaddr; - } - - pool_offset = get_pool_offset(server, address); - - /* verify that the requested address is from the pool, and either - owned by the current client or free */ - if (pool_offset >= 0 && - server->bound_leases[pool_offset] == existing_lease) { - DHCPLease *lease; - usec_t time_now = 0; - - if (!existing_lease) { - lease = new0(DHCPLease, 1); - lease->address = req->requested_ip; - lease->client_id.data = memdup(req->client_id.data, - req->client_id.length); - if (!lease->client_id.data) { - free(lease); - return -ENOMEM; - } - lease->client_id.length = req->client_id.length; - memcpy(&lease->chaddr, &req->message->chaddr, - ETH_ALEN); - lease->gateway = req->message->giaddr; - } else - lease = existing_lease; - - r = sd_event_now(server->event, - clock_boottime_or_monotonic(), - &time_now); - if (r < 0) - time_now = now(clock_boottime_or_monotonic()); - lease->expiration = req->lifetime * USEC_PER_SEC + time_now; - - r = server_send_ack(server, req, address); - if (r < 0) { - /* this only fails on critical errors */ - log_dhcp_server(server, "could not send ack: %s", - strerror(-r)); - - if (!existing_lease) - dhcp_lease_free(lease); - - return r; - } else { - log_dhcp_server(server, "ACK (0x%x)", - be32toh(req->message->xid)); - - server->bound_leases[pool_offset] = lease; - hashmap_put(server->leases_by_client_id, - &lease->client_id, lease); - - return DHCP_ACK; - } - } else if (init_reboot) { - r = server_send_nak(server, req); - if (r < 0) { - /* this only fails on critical errors */ - log_dhcp_server(server, "could not send nak: %s", - strerror(-r)); - return r; - } else { - log_dhcp_server(server, "NAK (0x%x)", - be32toh(req->message->xid)); - return DHCP_NAK; - } - } - - break; - } - case DHCP_RELEASE: { - int pool_offset; - - log_dhcp_server(server, "RELEASE (0x%x)", - be32toh(req->message->xid)); - - if (!existing_lease) - return 0; - - if (existing_lease->address != req->message->ciaddr) - return 0; - - pool_offset = get_pool_offset(server, req->message->ciaddr); - if (pool_offset < 0) - return 0; - - if (server->bound_leases[pool_offset] == existing_lease) { - server->bound_leases[pool_offset] = NULL; - hashmap_remove(server->leases_by_client_id, existing_lease); - dhcp_lease_free(existing_lease); - - return 1; - } else - return 0; - } - } - - return 0; -} - -static int server_receive_message(sd_event_source *s, int fd, - uint32_t revents, void *userdata) { - _cleanup_free_ DHCPMessage *message = NULL; - uint8_t cmsgbuf[CMSG_LEN(sizeof(struct in_pktinfo))]; - sd_dhcp_server *server = userdata; - struct iovec iov = {}; - struct msghdr msg = { - .msg_iov = &iov, - .msg_iovlen = 1, - .msg_control = cmsgbuf, - .msg_controllen = sizeof(cmsgbuf), - }; - struct cmsghdr *cmsg; - int buflen = 0, len, r; - - assert(server); - - r = ioctl(fd, FIONREAD, &buflen); - if (r < 0) - return r; - if (buflen < 0) - return -EIO; - - message = malloc0(buflen); - if (!message) - return -ENOMEM; - - iov.iov_base = message; - iov.iov_len = buflen; - - len = recvmsg(fd, &msg, 0); - if (len < buflen) - return 0; - else if ((size_t)len < sizeof(DHCPMessage)) - return 0; - - for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) { - if (cmsg->cmsg_level == IPPROTO_IP && - cmsg->cmsg_type == IP_PKTINFO && - cmsg->cmsg_len == CMSG_LEN(sizeof(struct in_pktinfo))) { - struct in_pktinfo *info = (struct in_pktinfo*)CMSG_DATA(cmsg); - - /* TODO figure out if this can be done as a filter on - * the socket, like for IPv6 */ - if (server->index != info->ipi_ifindex) - return 0; - - break; - } - } - - return dhcp_server_handle_message(server, message, (size_t)len); -} - -int sd_dhcp_server_start(sd_dhcp_server *server) { - int r; - - assert_return(server, -EINVAL); - assert_return(server->event, -EINVAL); - assert_return(!server->receive_message, -EBUSY); - assert_return(server->fd_raw == -1, -EBUSY); - assert_return(server->fd == -1, -EBUSY); - assert_return(server->address != htobe32(INADDR_ANY), -EUNATCH); - - r = socket(AF_PACKET, SOCK_DGRAM | SOCK_NONBLOCK, 0); - if (r < 0) { - r = -errno; - sd_dhcp_server_stop(server); - return r; - } - server->fd_raw = r; - - r = dhcp_network_bind_udp_socket(INADDR_ANY, DHCP_PORT_SERVER); - if (r < 0) { - sd_dhcp_server_stop(server); - return r; - } - server->fd = r; - - r = sd_event_add_io(server->event, &server->receive_message, - server->fd, EPOLLIN, - server_receive_message, server); - if (r < 0) { - sd_dhcp_server_stop(server); - return r; - } - - r = sd_event_source_set_priority(server->receive_message, - server->event_priority); - if (r < 0) { - sd_dhcp_server_stop(server); - return r; - } - - log_dhcp_server(server, "STARTED"); - - return 0; -} - -int sd_dhcp_server_forcerenew(sd_dhcp_server *server) { - unsigned i; - int r = 0; - - assert_return(server, -EINVAL); - assert(server->bound_leases); - - for (i = 0; i < server->pool_size; i++) { - DHCPLease *lease = server->bound_leases[i]; - - if (!lease) - continue; - - r = server_send_forcerenew(server, lease->address, - lease->gateway, - lease->chaddr); - if (r < 0) - return r; - else - log_dhcp_server(server, "FORCERENEW"); - } - - return r; -} diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c deleted file mode 100644 index 3db1cb09db..0000000000 --- a/src/libsystemd-network/sd-dhcp6-client.c +++ /dev/null @@ -1,1249 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> -#include <sys/ioctl.h> -#include <linux/if_infiniband.h> - -#include "udev.h" -#include "udev-util.h" -#include "util.h" -#include "refcnt.h" - -#include "network-internal.h" -#include "sd-dhcp6-client.h" -#include "dhcp6-protocol.h" -#include "dhcp6-internal.h" -#include "dhcp6-lease-internal.h" -#include "dhcp-identifier.h" - -#define MAX_MAC_ADDR_LEN INFINIBAND_ALEN - -struct sd_dhcp6_client { - RefCount n_ref; - - enum DHCP6State state; - sd_event *event; - int event_priority; - int index; - uint8_t mac_addr[MAX_MAC_ADDR_LEN]; - size_t mac_addr_len; - uint16_t arp_type; - DHCP6IA ia_na; - be32_t transaction_id; - usec_t transaction_start; - struct sd_dhcp6_lease *lease; - int fd; - bool information_request; - be16_t *req_opts; - size_t req_opts_allocated; - size_t req_opts_len; - sd_event_source *receive_message; - usec_t retransmit_time; - uint8_t retransmit_count; - sd_event_source *timeout_resend; - sd_event_source *timeout_resend_expire; - sd_dhcp6_client_cb_t cb; - void *userdata; - struct duid duid; - size_t duid_len; -}; - -static const uint16_t default_req_opts[] = { - DHCP6_OPTION_DNS_SERVERS, - DHCP6_OPTION_DOMAIN_LIST, - DHCP6_OPTION_NTP_SERVER, -}; - -const char * dhcp6_message_type_table[_DHCP6_MESSAGE_MAX] = { - [DHCP6_SOLICIT] = "SOLICIT", - [DHCP6_ADVERTISE] = "ADVERTISE", - [DHCP6_REQUEST] = "REQUEST", - [DHCP6_CONFIRM] = "CONFIRM", - [DHCP6_RENEW] = "RENEW", - [DHCP6_REBIND] = "REBIND", - [DHCP6_REPLY] = "REPLY", - [DHCP6_RELEASE] = "RELEASE", - [DHCP6_DECLINE] = "DECLINE", - [DHCP6_RECONFIGURE] = "RECONFIGURE", - [DHCP6_INFORMATION_REQUEST] = "INFORMATION-REQUEST", - [DHCP6_RELAY_FORW] = "RELAY-FORW", - [DHCP6_RELAY_REPL] = "RELAY-REPL", -}; - -DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_type, int); - -const char * dhcp6_message_status_table[_DHCP6_STATUS_MAX] = { - [DHCP6_STATUS_SUCCESS] = "Success", - [DHCP6_STATUS_UNSPEC_FAIL] = "Unspecified failure", - [DHCP6_STATUS_NO_ADDRS_AVAIL] = "No addresses available", - [DHCP6_STATUS_NO_BINDING] = "Binding unavailable", - [DHCP6_STATUS_NOT_ON_LINK] = "Not on link", - [DHCP6_STATUS_USE_MULTICAST] = "Use multicast", -}; - -DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_status, int); - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp6_client*, sd_dhcp6_client_unref); -#define _cleanup_dhcp6_client_unref_ _cleanup_(sd_dhcp6_client_unrefp) - -#define DHCP6_CLIENT_DONT_DESTROY(client) \ - _cleanup_dhcp6_client_unref_ _unused_ sd_dhcp6_client *_dont_destroy_##client = sd_dhcp6_client_ref(client) - -static int client_start(sd_dhcp6_client *client, enum DHCP6State state); - -int sd_dhcp6_client_set_callback(sd_dhcp6_client *client, - sd_dhcp6_client_cb_t cb, void *userdata) -{ - assert_return(client, -EINVAL); - - client->cb = cb; - client->userdata = userdata; - - return 0; -} - -int sd_dhcp6_client_set_index(sd_dhcp6_client *client, int interface_index) -{ - assert_return(client, -EINVAL); - assert_return(interface_index >= -1, -EINVAL); - - client->index = interface_index; - - return 0; -} - -int sd_dhcp6_client_set_mac(sd_dhcp6_client *client, const uint8_t *addr, - size_t addr_len, uint16_t arp_type) -{ - assert_return(client, -EINVAL); - assert_return(addr, -EINVAL); - assert_return(addr_len > 0 && addr_len <= MAX_MAC_ADDR_LEN, -EINVAL); - assert_return(arp_type > 0, -EINVAL); - - if (arp_type == ARPHRD_ETHER) - assert_return(addr_len == ETH_ALEN, -EINVAL); - else if (arp_type == ARPHRD_INFINIBAND) - assert_return(addr_len == INFINIBAND_ALEN, -EINVAL); - else - return -EINVAL; - - if (client->mac_addr_len == addr_len && - memcmp(&client->mac_addr, addr, addr_len) == 0) - return 0; - - memcpy(&client->mac_addr, addr, addr_len); - client->mac_addr_len = addr_len; - client->arp_type = arp_type; - - return 0; -} - -static int client_ensure_duid(sd_dhcp6_client *client) -{ - if (client->duid_len != 0) - return 0; - return dhcp_identifier_set_duid_en(&client->duid, &client->duid_len); -} - -int sd_dhcp6_client_set_duid(sd_dhcp6_client *client, uint16_t type, uint8_t *duid, - size_t duid_len) -{ - assert_return(client, -EINVAL); - assert_return(duid, -EINVAL); - assert_return(duid_len > 0 && duid_len <= MAX_DUID_LEN, -EINVAL); - - switch (type) { - case DHCP6_DUID_LLT: - if (duid_len <= sizeof(client->duid.llt)) - return -EINVAL; - break; - case DHCP6_DUID_EN: - if (duid_len != sizeof(client->duid.en)) - return -EINVAL; - break; - case DHCP6_DUID_LL: - if (duid_len <= sizeof(client->duid.ll)) - return -EINVAL; - break; - case DHCP6_DUID_UUID: - if (duid_len != sizeof(client->duid.uuid)) - return -EINVAL; - break; - default: - /* accept unknown type in order to be forward compatible */ - break; - } - - client->duid.type = htobe16(type); - memcpy(&client->duid.raw.data, duid, duid_len); - client->duid_len = duid_len + sizeof(client->duid.type); - - return 0; -} - -int sd_dhcp6_client_set_information_request(sd_dhcp6_client *client, - bool enabled) { - assert_return(client, -EINVAL); - - client->information_request = enabled; - - return 0; -} - -int sd_dhcp6_client_get_information_request(sd_dhcp6_client *client, - bool *enabled) { - assert_return(client, -EINVAL); - assert_return(enabled, -EINVAL); - - *enabled = client->information_request; - - return 0; -} - -int sd_dhcp6_client_set_request_option(sd_dhcp6_client *client, - uint16_t option) { - size_t t; - - assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); - - switch(option) { - case DHCP6_OPTION_DNS_SERVERS: - case DHCP6_OPTION_DOMAIN_LIST: - case DHCP6_OPTION_SNTP_SERVERS: - case DHCP6_OPTION_NTP_SERVER: - break; - - default: - return -EINVAL; - } - - for (t = 0; t < client->req_opts_len; t++) - if (client->req_opts[t] == htobe16(option)) - return -EEXIST; - - if (!GREEDY_REALLOC(client->req_opts, client->req_opts_allocated, - client->req_opts_len + 1)) - return -ENOMEM; - - client->req_opts[client->req_opts_len++] = htobe16(option); - - return 0; -} - -int sd_dhcp6_client_get_lease(sd_dhcp6_client *client, sd_dhcp6_lease **ret) { - assert_return(client, -EINVAL); - assert_return(ret, -EINVAL); - - if (!client->lease) - return -ENOMSG; - - *ret = sd_dhcp6_lease_ref(client->lease); - - return 0; -} - -static void client_notify(sd_dhcp6_client *client, int event) { - if (client->cb) - client->cb(client, event, client->userdata); -} - -static int client_reset(sd_dhcp6_client *client) { - assert_return(client, -EINVAL); - - client->receive_message = - sd_event_source_unref(client->receive_message); - - client->fd = safe_close(client->fd); - - client->transaction_id = 0; - client->transaction_start = 0; - - client->ia_na.timeout_t1 = - sd_event_source_unref(client->ia_na.timeout_t1); - client->ia_na.timeout_t2 = - sd_event_source_unref(client->ia_na.timeout_t2); - - client->retransmit_time = 0; - client->retransmit_count = 0; - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - client->timeout_resend_expire = - sd_event_source_unref(client->timeout_resend_expire); - - client->state = DHCP6_STATE_STOPPED; - - return 0; -} - -static void client_stop(sd_dhcp6_client *client, int error) { - DHCP6_CLIENT_DONT_DESTROY(client); - - assert(client); - - client_notify(client, error); - - client_reset(client); -} - -static int client_send_message(sd_dhcp6_client *client, usec_t time_now) { - _cleanup_free_ DHCP6Message *message = NULL; - struct in6_addr all_servers = - IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT; - size_t len, optlen = 512; - uint8_t *opt; - int r; - usec_t elapsed_usec; - be16_t elapsed_time; - - len = sizeof(DHCP6Message) + optlen; - - message = malloc0(len); - if (!message) - return -ENOMEM; - - opt = (uint8_t *)(message + 1); - - message->transaction_id = client->transaction_id; - - switch(client->state) { - case DHCP6_STATE_INFORMATION_REQUEST: - message->type = DHCP6_INFORMATION_REQUEST; - - break; - - case DHCP6_STATE_SOLICITATION: - message->type = DHCP6_SOLICIT; - - r = dhcp6_option_append(&opt, &optlen, - DHCP6_OPTION_RAPID_COMMIT, 0, NULL); - if (r < 0) - return r; - - r = dhcp6_option_append_ia(&opt, &optlen, &client->ia_na); - if (r < 0) - return r; - - break; - - case DHCP6_STATE_REQUEST: - case DHCP6_STATE_RENEW: - - if (client->state == DHCP6_STATE_REQUEST) - message->type = DHCP6_REQUEST; - else - message->type = DHCP6_RENEW; - - r = dhcp6_option_append(&opt, &optlen, DHCP6_OPTION_SERVERID, - client->lease->serverid_len, - client->lease->serverid); - if (r < 0) - return r; - - r = dhcp6_option_append_ia(&opt, &optlen, &client->lease->ia); - if (r < 0) - return r; - - break; - - case DHCP6_STATE_REBIND: - message->type = DHCP6_REBIND; - - r = dhcp6_option_append_ia(&opt, &optlen, &client->lease->ia); - if (r < 0) - return r; - - break; - - case DHCP6_STATE_STOPPED: - case DHCP6_STATE_BOUND: - return -EINVAL; - } - - r = dhcp6_option_append(&opt, &optlen, DHCP6_OPTION_ORO, - client->req_opts_len * sizeof(be16_t), - client->req_opts); - if (r < 0) - return r; - - assert (client->duid_len); - r = dhcp6_option_append(&opt, &optlen, DHCP6_OPTION_CLIENTID, - client->duid_len, &client->duid); - if (r < 0) - return r; - - elapsed_usec = time_now - client->transaction_start; - if (elapsed_usec < 0xffff * USEC_PER_MSEC * 10) - elapsed_time = htobe16(elapsed_usec / USEC_PER_MSEC / 10); - else - elapsed_time = 0xffff; - - r = dhcp6_option_append(&opt, &optlen, DHCP6_OPTION_ELAPSED_TIME, - sizeof(elapsed_time), &elapsed_time); - if (r < 0) - return r; - - r = dhcp6_network_send_udp_socket(client->fd, &all_servers, message, - len - optlen); - if (r < 0) - return r; - - log_dhcp6_client(client, "Sent %s", - dhcp6_message_type_to_string(message->type)); - - return 0; -} - -static int client_timeout_t2(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_dhcp6_client *client = userdata; - - assert_return(s, -EINVAL); - assert_return(client, -EINVAL); - assert_return(client->lease, -EINVAL); - - client->lease->ia.timeout_t2 = - sd_event_source_unref(client->lease->ia.timeout_t2); - - log_dhcp6_client(client, "Timeout T2"); - - client_start(client, DHCP6_STATE_REBIND); - - return 0; -} - -static int client_timeout_t1(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_dhcp6_client *client = userdata; - - assert_return(s, -EINVAL); - assert_return(client, -EINVAL); - assert_return(client->lease, -EINVAL); - - client->lease->ia.timeout_t1 = - sd_event_source_unref(client->lease->ia.timeout_t1); - - log_dhcp6_client(client, "Timeout T1"); - - client_start(client, DHCP6_STATE_RENEW); - - return 0; -} - -static int client_timeout_resend_expire(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_dhcp6_client *client = userdata; - DHCP6_CLIENT_DONT_DESTROY(client); - enum DHCP6State state; - - assert(s); - assert(client); - assert(client->event); - - state = client->state; - - client_stop(client, DHCP6_EVENT_RESEND_EXPIRE); - - /* RFC 3315, section 18.1.4., says that "...the client may choose to - use a Solicit message to locate a new DHCP server..." */ - if (state == DHCP6_STATE_REBIND) - client_start(client, DHCP6_STATE_SOLICITATION); - - return 0; -} - -static usec_t client_timeout_compute_random(usec_t val) { - return val - val / 10 + - (random_u32() % (2 * USEC_PER_SEC)) * val / 10 / USEC_PER_SEC; -} - -static int client_timeout_resend(sd_event_source *s, uint64_t usec, - void *userdata) { - int r = 0; - sd_dhcp6_client *client = userdata; - usec_t time_now, init_retransmit_time = 0, max_retransmit_time = 0; - usec_t max_retransmit_duration = 0; - uint8_t max_retransmit_count = 0; - char time_string[FORMAT_TIMESPAN_MAX]; - uint32_t expire = 0; - - assert(s); - assert(client); - assert(client->event); - - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - - switch (client->state) { - case DHCP6_STATE_INFORMATION_REQUEST: - init_retransmit_time = DHCP6_INF_TIMEOUT; - max_retransmit_time = DHCP6_INF_MAX_RT; - - break; - - case DHCP6_STATE_SOLICITATION: - - if (client->retransmit_count && client->lease) { - client_start(client, DHCP6_STATE_REQUEST); - return 0; - } - - init_retransmit_time = DHCP6_SOL_TIMEOUT; - max_retransmit_time = DHCP6_SOL_MAX_RT; - - break; - - case DHCP6_STATE_REQUEST: - init_retransmit_time = DHCP6_REQ_TIMEOUT; - max_retransmit_time = DHCP6_REQ_MAX_RT; - max_retransmit_count = DHCP6_REQ_MAX_RC; - - break; - - case DHCP6_STATE_RENEW: - init_retransmit_time = DHCP6_REN_TIMEOUT; - max_retransmit_time = DHCP6_REN_MAX_RT; - - /* RFC 3315, section 18.1.3. says max retransmit duration will - be the remaining time until T2. Instead of setting MRD, - wait for T2 to trigger with the same end result */ - - break; - - case DHCP6_STATE_REBIND: - init_retransmit_time = DHCP6_REB_TIMEOUT; - max_retransmit_time = DHCP6_REB_MAX_RT; - - if (!client->timeout_resend_expire) { - r = dhcp6_lease_ia_rebind_expire(&client->lease->ia, - &expire); - if (r < 0) { - client_stop(client, r); - return 0; - } - max_retransmit_duration = expire * USEC_PER_SEC; - } - - break; - - case DHCP6_STATE_STOPPED: - case DHCP6_STATE_BOUND: - return 0; - } - - if (max_retransmit_count && - client->retransmit_count >= max_retransmit_count) { - client_stop(client, DHCP6_EVENT_RETRANS_MAX); - return 0; - } - - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - goto error; - - r = client_send_message(client, time_now); - if (r >= 0) - client->retransmit_count++; - - if (!client->retransmit_time) { - client->retransmit_time = - client_timeout_compute_random(init_retransmit_time); - - if (client->state == DHCP6_STATE_SOLICITATION) - client->retransmit_time += init_retransmit_time / 10; - - } else { - if (max_retransmit_time && - client->retransmit_time > max_retransmit_time / 2) - client->retransmit_time = client_timeout_compute_random(max_retransmit_time); - else - client->retransmit_time += client_timeout_compute_random(client->retransmit_time); - } - - log_dhcp6_client(client, "Next retransmission in %s", - format_timespan(time_string, FORMAT_TIMESPAN_MAX, - client->retransmit_time, 0)); - - r = sd_event_add_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), - time_now + client->retransmit_time, - 10 * USEC_PER_MSEC, client_timeout_resend, - client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->timeout_resend, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->timeout_resend, "dhcp6-resend-timer"); - if (r < 0) - goto error; - - if (max_retransmit_duration && !client->timeout_resend_expire) { - - log_dhcp6_client(client, "Max retransmission duration %"PRIu64" secs", - max_retransmit_duration / USEC_PER_SEC); - - r = sd_event_add_time(client->event, - &client->timeout_resend_expire, - clock_boottime_or_monotonic(), - time_now + max_retransmit_duration, - USEC_PER_SEC, - client_timeout_resend_expire, client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->timeout_resend_expire, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->timeout_resend_expire, "dhcp6-resend-expire-timer"); - if (r < 0) - goto error; - } - -error: - if (r < 0) - client_stop(client, r); - - return 0; -} - -static int client_ensure_iaid(sd_dhcp6_client *client) { - int r; - - assert(client); - - if (client->ia_na.id) - return 0; - - r = dhcp_identifier_set_iaid(client->index, client->mac_addr, client->mac_addr_len, &client->ia_na.id); - if (r < 0) - return r; - - return 0; -} - -static int client_parse_message(sd_dhcp6_client *client, - DHCP6Message *message, size_t len, - sd_dhcp6_lease *lease) { - int r; - uint8_t *optval, *option, *id = NULL; - uint16_t optcode, status; - size_t optlen, id_len; - bool clientid = false; - be32_t iaid_lease; - - option = (uint8_t *)message + sizeof(DHCP6Message); - len -= sizeof(DHCP6Message); - - while ((r = dhcp6_option_parse(&option, &len, &optcode, &optlen, - &optval)) >= 0) { - switch (optcode) { - case DHCP6_OPTION_CLIENTID: - if (clientid) { - log_dhcp6_client(client, "%s contains multiple clientids", - dhcp6_message_type_to_string(message->type)); - return -EINVAL; - } - - if (optlen != client->duid_len || - memcmp(&client->duid, optval, optlen) != 0) { - log_dhcp6_client(client, "%s DUID does not match", - dhcp6_message_type_to_string(message->type)); - - return -EINVAL; - } - clientid = true; - - break; - - case DHCP6_OPTION_SERVERID: - r = dhcp6_lease_get_serverid(lease, &id, &id_len); - if (r >= 0 && id) { - log_dhcp6_client(client, "%s contains multiple serverids", - dhcp6_message_type_to_string(message->type)); - return -EINVAL; - } - - r = dhcp6_lease_set_serverid(lease, optval, optlen); - if (r < 0) - return r; - - break; - - case DHCP6_OPTION_PREFERENCE: - if (optlen != 1) - return -EINVAL; - - r = dhcp6_lease_set_preference(lease, *optval); - if (r < 0) - return r; - - break; - - case DHCP6_OPTION_STATUS_CODE: - if (optlen < 2) - return -EINVAL; - - status = optval[0] << 8 | optval[1]; - if (status) { - log_dhcp6_client(client, "%s Status %s", - dhcp6_message_type_to_string(message->type), - dhcp6_message_status_to_string(status)); - return -EINVAL; - } - - break; - - case DHCP6_OPTION_IA_NA: - if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { - log_dhcp6_client(client, "Information request ignoring IA NA option"); - - break; - } - - r = dhcp6_option_parse_ia(&optval, &optlen, optcode, - &lease->ia); - if (r < 0 && r != -ENOMSG) - return r; - - r = dhcp6_lease_get_iaid(lease, &iaid_lease); - if (r < 0) - return r; - - if (client->ia_na.id != iaid_lease) { - log_dhcp6_client(client, "%s has wrong IAID", - dhcp6_message_type_to_string(message->type)); - return -EINVAL; - } - - break; - - case DHCP6_OPTION_RAPID_COMMIT: - r = dhcp6_lease_set_rapid_commit(lease); - if (r < 0) - return r; - - break; - } - } - - if (r == -ENOMSG) - r = 0; - - if (r < 0 || !clientid) { - log_dhcp6_client(client, "%s has incomplete options", - dhcp6_message_type_to_string(message->type)); - return -EINVAL; - } - - if (client->state != DHCP6_STATE_INFORMATION_REQUEST) { - r = dhcp6_lease_get_serverid(lease, &id, &id_len); - if (r < 0) - log_dhcp6_client(client, "%s has no server id", - dhcp6_message_type_to_string(message->type)); - } - - return r; -} - -static int client_receive_reply(sd_dhcp6_client *client, DHCP6Message *reply, - size_t len) -{ - int r; - _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL; - bool rapid_commit; - - if (reply->type != DHCP6_REPLY) - return 0; - - r = dhcp6_lease_new(&lease); - if (r < 0) - return -ENOMEM; - - r = client_parse_message(client, reply, len, lease); - if (r < 0) - return r; - - if (client->state == DHCP6_STATE_SOLICITATION) { - r = dhcp6_lease_get_rapid_commit(lease, &rapid_commit); - if (r < 0) - return r; - - if (!rapid_commit) - return 0; - } - - if (client->lease) { - dhcp6_lease_clear_timers(&client->lease->ia); - client->lease = sd_dhcp6_lease_unref(client->lease); - } - - if (client->state != DHCP6_STATE_INFORMATION_REQUEST) { - client->lease = lease; - lease = NULL; - } - - return DHCP6_STATE_BOUND; -} - -static int client_receive_advertise(sd_dhcp6_client *client, - DHCP6Message *advertise, size_t len) { - int r; - _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL; - uint8_t pref_advertise = 0, pref_lease = 0; - - if (advertise->type != DHCP6_ADVERTISE) - return 0; - - r = dhcp6_lease_new(&lease); - if (r < 0) - return r; - - r = client_parse_message(client, advertise, len, lease); - if (r < 0) - return r; - - r = dhcp6_lease_get_preference(lease, &pref_advertise); - if (r < 0) - return r; - - r = dhcp6_lease_get_preference(client->lease, &pref_lease); - - if (r < 0 || pref_advertise > pref_lease) { - sd_dhcp6_lease_unref(client->lease); - client->lease = lease; - lease = NULL; - r = 0; - } - - if (pref_advertise == 255 || client->retransmit_count > 1) - r = DHCP6_STATE_REQUEST; - - return r; -} - -static int client_receive_message(sd_event_source *s, int fd, uint32_t revents, - void *userdata) { - sd_dhcp6_client *client = userdata; - DHCP6_CLIENT_DONT_DESTROY(client); - _cleanup_free_ DHCP6Message *message; - int r, buflen, len; - - assert(s); - assert(client); - assert(client->event); - - r = ioctl(fd, FIONREAD, &buflen); - if (r < 0 || buflen <= 0) - buflen = DHCP6_MIN_OPTIONS_SIZE; - - message = malloc0(buflen); - if (!message) - return -ENOMEM; - - len = read(fd, message, buflen); - if ((size_t)len < sizeof(DHCP6Message)) { - log_dhcp6_client(client, "could not receive message from UDP socket: %m"); - return 0; - } - - switch(message->type) { - case DHCP6_SOLICIT: - case DHCP6_REQUEST: - case DHCP6_CONFIRM: - case DHCP6_RENEW: - case DHCP6_REBIND: - case DHCP6_RELEASE: - case DHCP6_DECLINE: - case DHCP6_INFORMATION_REQUEST: - case DHCP6_RELAY_FORW: - case DHCP6_RELAY_REPL: - return 0; - - case DHCP6_ADVERTISE: - case DHCP6_REPLY: - case DHCP6_RECONFIGURE: - break; - - default: - log_dhcp6_client(client, "unknown message type %d", - message->type); - return 0; - } - - if (client->transaction_id != (message->transaction_id & - htobe32(0x00ffffff))) - return 0; - - switch (client->state) { - case DHCP6_STATE_INFORMATION_REQUEST: - r = client_receive_reply(client, message, len); - if (r < 0) - return 0; - - client_notify(client, DHCP6_EVENT_INFORMATION_REQUEST); - - client_start(client, DHCP6_STATE_STOPPED); - - break; - - case DHCP6_STATE_SOLICITATION: - r = client_receive_advertise(client, message, len); - - if (r == DHCP6_STATE_REQUEST) { - client_start(client, r); - - break; - } - - /* fall through for Soliciation Rapid Commit option check */ - case DHCP6_STATE_REQUEST: - case DHCP6_STATE_RENEW: - case DHCP6_STATE_REBIND: - - r = client_receive_reply(client, message, len); - if (r < 0) - return 0; - - if (r == DHCP6_STATE_BOUND) { - - r = client_start(client, DHCP6_STATE_BOUND); - if (r < 0) { - client_stop(client, r); - return 0; - } - - client_notify(client, DHCP6_EVENT_IP_ACQUIRE); - } - - break; - - case DHCP6_STATE_BOUND: - - break; - - case DHCP6_STATE_STOPPED: - return 0; - } - - if (r >= 0) { - log_dhcp6_client(client, "Recv %s", - dhcp6_message_type_to_string(message->type)); - } - - return 0; -} - -static int client_start(sd_dhcp6_client *client, enum DHCP6State state) -{ - int r; - usec_t timeout, time_now; - char time_string[FORMAT_TIMESPAN_MAX]; - - assert_return(client, -EINVAL); - assert_return(client->event, -EINVAL); - assert_return(client->index > 0, -EINVAL); - assert_return(client->state != state, -EINVAL); - - client->timeout_resend_expire = - sd_event_source_unref(client->timeout_resend_expire); - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - client->retransmit_time = 0; - client->retransmit_count = 0; - - if (client->state == DHCP6_STATE_STOPPED) { - time_now = now(clock_boottime_or_monotonic()); - } else { - r = sd_event_now(client->event, clock_boottime_or_monotonic(), - &time_now); - if (r < 0) - return r; - } - - switch (state) { - case DHCP6_STATE_STOPPED: - if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { - client->state = DHCP6_STATE_STOPPED; - - return 0; - } - - /* fall through */ - case DHCP6_STATE_SOLICITATION: - client->state = DHCP6_STATE_SOLICITATION; - - break; - - case DHCP6_STATE_INFORMATION_REQUEST: - case DHCP6_STATE_REQUEST: - case DHCP6_STATE_RENEW: - case DHCP6_STATE_REBIND: - - client->state = state; - - break; - - case DHCP6_STATE_BOUND: - - if (client->lease->ia.lifetime_t1 == 0xffffffff || - client->lease->ia.lifetime_t2 == 0xffffffff) { - - log_dhcp6_client(client, "infinite T1 0x%08x or T2 0x%08x", - be32toh(client->lease->ia.lifetime_t1), - be32toh(client->lease->ia.lifetime_t2)); - - return 0; - } - - timeout = client_timeout_compute_random(be32toh(client->lease->ia.lifetime_t1) * USEC_PER_SEC); - - log_dhcp6_client(client, "T1 expires in %s", - format_timespan(time_string, - FORMAT_TIMESPAN_MAX, - timeout, 0)); - - r = sd_event_add_time(client->event, - &client->lease->ia.timeout_t1, - clock_boottime_or_monotonic(), time_now + timeout, - 10 * USEC_PER_SEC, client_timeout_t1, - client); - if (r < 0) - return r; - - r = sd_event_source_set_priority(client->lease->ia.timeout_t1, - client->event_priority); - if (r < 0) - return r; - - r = sd_event_source_set_description(client->lease->ia.timeout_t1, "dhcp6-t1-timeout"); - if (r < 0) - return r; - - timeout = client_timeout_compute_random(be32toh(client->lease->ia.lifetime_t2) * USEC_PER_SEC); - - log_dhcp6_client(client, "T2 expires in %s", - format_timespan(time_string, - FORMAT_TIMESPAN_MAX, - timeout, 0)); - - r = sd_event_add_time(client->event, - &client->lease->ia.timeout_t2, - clock_boottime_or_monotonic(), time_now + timeout, - 10 * USEC_PER_SEC, client_timeout_t2, - client); - if (r < 0) - return r; - - r = sd_event_source_set_priority(client->lease->ia.timeout_t2, - client->event_priority); - if (r < 0) - return r; - - r = sd_event_source_set_description(client->lease->ia.timeout_t2, "dhcp6-t2-timeout"); - if (r < 0) - return r; - - client->state = state; - - return 0; - } - - client->transaction_id = random_u32() & htobe32(0x00ffffff); - client->transaction_start = time_now; - - r = sd_event_add_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), 0, 0, client_timeout_resend, - client); - if (r < 0) - return r; - - r = sd_event_source_set_priority(client->timeout_resend, - client->event_priority); - if (r < 0) - return r; - - r = sd_event_source_set_description(client->timeout_resend, "dhcp6-resend-timeout"); - if (r < 0) - return r; - - return 0; -} - -int sd_dhcp6_client_stop(sd_dhcp6_client *client) -{ - client_stop(client, DHCP6_EVENT_STOP); - - return 0; -} - -int sd_dhcp6_client_start(sd_dhcp6_client *client) -{ - int r = 0; - enum DHCP6State state = DHCP6_STATE_SOLICITATION; - - assert_return(client, -EINVAL); - assert_return(client->event, -EINVAL); - assert_return(client->index > 0, -EINVAL); - - r = client_reset(client); - if (r < 0) - return r; - - r = client_ensure_iaid(client); - if (r < 0) - return r; - - r = client_ensure_duid(client); - if (r < 0) - return r; - - r = dhcp6_network_bind_udp_socket(client->index, NULL); - if (r < 0) - return r; - - client->fd = r; - - r = sd_event_add_io(client->event, &client->receive_message, - client->fd, EPOLLIN, client_receive_message, - client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->receive_message, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->receive_message, - "dhcp6-receive-message"); - if (r < 0) - goto error; - - if (client->information_request) - state = DHCP6_STATE_INFORMATION_REQUEST; - - log_dhcp6_client(client, "Started in %s mode", - client->information_request? "Information request": - "Managed"); - - return client_start(client, state); - -error: - client_reset(client); - return r; -} - -int sd_dhcp6_client_attach_event(sd_dhcp6_client *client, sd_event *event, - int priority) -{ - int r; - - assert_return(client, -EINVAL); - assert_return(!client->event, -EBUSY); - - if (event) - client->event = sd_event_ref(event); - else { - r = sd_event_default(&client->event); - if (r < 0) - return 0; - } - - client->event_priority = priority; - - return 0; -} - -int sd_dhcp6_client_detach_event(sd_dhcp6_client *client) { - assert_return(client, -EINVAL); - - client->event = sd_event_unref(client->event); - - return 0; -} - -sd_event *sd_dhcp6_client_get_event(sd_dhcp6_client *client) { - if (!client) - return NULL; - - return client->event; -} - -sd_dhcp6_client *sd_dhcp6_client_ref(sd_dhcp6_client *client) { - if (client) - assert_se(REFCNT_INC(client->n_ref) >= 2); - - return client; -} - -sd_dhcp6_client *sd_dhcp6_client_unref(sd_dhcp6_client *client) { - if (client && REFCNT_DEC(client->n_ref) == 0) { - client_reset(client); - - sd_dhcp6_client_detach_event(client); - - free(client->req_opts); - free(client); - - return NULL; - } - - return client; -} - -int sd_dhcp6_client_new(sd_dhcp6_client **ret) -{ - _cleanup_dhcp6_client_unref_ sd_dhcp6_client *client = NULL; - size_t t; - - assert_return(ret, -EINVAL); - - client = new0(sd_dhcp6_client, 1); - if (!client) - return -ENOMEM; - - client->n_ref = REFCNT_INIT; - - client->ia_na.type = DHCP6_OPTION_IA_NA; - - client->index = -1; - - client->fd = -1; - - client->req_opts_len = ELEMENTSOF(default_req_opts); - - client->req_opts = new0(be16_t, client->req_opts_len); - if (!client->req_opts) - return -ENOMEM; - - for (t = 0; t < client->req_opts_len; t++) - client->req_opts[t] = htobe16(default_req_opts[t]); - - *ret = client; - client = NULL; - - return 0; -} diff --git a/src/libsystemd-network/sd-dhcp6-lease.c b/src/libsystemd-network/sd-dhcp6-lease.c deleted file mode 100644 index 2442269a3f..0000000000 --- a/src/libsystemd-network/sd-dhcp6-lease.c +++ /dev/null @@ -1,207 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> - -#include "util.h" - -#include "dhcp6-lease-internal.h" - -int dhcp6_lease_clear_timers(DHCP6IA *ia) { - assert_return(ia, -EINVAL); - - ia->timeout_t1 = sd_event_source_unref(ia->timeout_t1); - ia->timeout_t2 = sd_event_source_unref(ia->timeout_t2); - - return 0; -} - -int dhcp6_lease_ia_rebind_expire(const DHCP6IA *ia, uint32_t *expire) { - DHCP6Address *addr; - uint32_t valid = 0, t; - - assert_return(ia, -EINVAL); - assert_return(expire, -EINVAL); - - LIST_FOREACH(addresses, addr, ia->addresses) { - t = be32toh(addr->iaaddr.lifetime_valid); - if (valid < t) - valid = t; - } - - t = be32toh(ia->lifetime_t2); - if (t > valid) - return -EINVAL; - - *expire = valid - t; - - return 0; -} - -DHCP6IA *dhcp6_lease_free_ia(DHCP6IA *ia) { - DHCP6Address *address; - - if (!ia) - return NULL; - - dhcp6_lease_clear_timers(ia); - - while (ia->addresses) { - address = ia->addresses; - - LIST_REMOVE(addresses, ia->addresses, address); - - free(address); - } - - return NULL; -} - -int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id, - size_t len) { - assert_return(lease, -EINVAL); - assert_return(id, -EINVAL); - - free(lease->serverid); - - lease->serverid = memdup(id, len); - if (!lease->serverid) - return -EINVAL; - - lease->serverid_len = len; - - return 0; -} - -int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **id, size_t *len) { - assert_return(lease, -EINVAL); - assert_return(id, -EINVAL); - assert_return(len, -EINVAL); - - *id = lease->serverid; - *len = lease->serverid_len; - - return 0; -} - -int dhcp6_lease_set_preference(sd_dhcp6_lease *lease, uint8_t preference) { - assert_return(lease, -EINVAL); - - lease->preference = preference; - - return 0; -} - -int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *preference) { - assert_return(preference, -EINVAL); - - if (!lease) - return -EINVAL; - - *preference = lease->preference; - - return 0; -} - -int dhcp6_lease_set_rapid_commit(sd_dhcp6_lease *lease) { - assert_return(lease, -EINVAL); - - lease->rapid_commit = true; - - return 0; -} - -int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease *lease, bool *rapid_commit) { - assert_return(lease, -EINVAL); - assert_return(rapid_commit, -EINVAL); - - *rapid_commit = lease->rapid_commit; - - return 0; -} - -int dhcp6_lease_get_iaid(sd_dhcp6_lease *lease, be32_t *iaid) { - assert_return(lease, -EINVAL); - assert_return(iaid, -EINVAL); - - *iaid = lease->ia.id; - - return 0; -} - -int sd_dhcp6_lease_get_address(sd_dhcp6_lease *lease, struct in6_addr *addr, - uint32_t *lifetime_preferred, - uint32_t *lifetime_valid) { - assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - assert_return(lifetime_preferred, -EINVAL); - assert_return(lifetime_valid, -EINVAL); - - if (!lease->addr_iter) - return -ENOMSG; - - memcpy(addr, &lease->addr_iter->iaaddr.address, - sizeof(struct in6_addr)); - *lifetime_preferred = - be32toh(lease->addr_iter->iaaddr.lifetime_preferred); - *lifetime_valid = be32toh(lease->addr_iter->iaaddr.lifetime_valid); - - lease->addr_iter = lease->addr_iter->addresses_next; - - return 0; -} - -void sd_dhcp6_lease_reset_address_iter(sd_dhcp6_lease *lease) { - if (lease) - lease->addr_iter = lease->ia.addresses; -} - -sd_dhcp6_lease *sd_dhcp6_lease_ref(sd_dhcp6_lease *lease) { - if (lease) - assert_se(REFCNT_INC(lease->n_ref) >= 2); - - return lease; -} - -sd_dhcp6_lease *sd_dhcp6_lease_unref(sd_dhcp6_lease *lease) { - if (lease && REFCNT_DEC(lease->n_ref) == 0) { - free(lease->serverid); - dhcp6_lease_free_ia(&lease->ia); - - free(lease); - } - - return NULL; -} - -int dhcp6_lease_new(sd_dhcp6_lease **ret) { - sd_dhcp6_lease *lease; - - lease = new0(sd_dhcp6_lease, 1); - if (!lease) - return -ENOMEM; - - lease->n_ref = REFCNT_INIT; - - LIST_HEAD_INIT(lease->ia.addresses); - - *ret = lease; - return 0; -} diff --git a/src/libsystemd-network/sd-icmp6-nd.c b/src/libsystemd-network/sd-icmp6-nd.c deleted file mode 100644 index 2f867e8562..0000000000 --- a/src/libsystemd-network/sd-icmp6-nd.c +++ /dev/null @@ -1,715 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/icmp6.h> -#include <netinet/ip6.h> -#include <string.h> -#include <stdbool.h> -#include <netinet/in.h> -#include <sys/ioctl.h> - -#include "socket-util.h" -#include "refcnt.h" -#include "async.h" - -#include "dhcp6-internal.h" -#include "sd-icmp6-nd.h" - -#define ICMP6_ROUTER_SOLICITATION_INTERVAL 4 * USEC_PER_SEC -#define ICMP6_MAX_ROUTER_SOLICITATIONS 3 - -enum icmp6_nd_state { - ICMP6_NEIGHBOR_DISCOVERY_IDLE = 0, - ICMP6_ROUTER_SOLICITATION_SENT = 10, - ICMP6_ROUTER_ADVERTISMENT_LISTEN = 11, -}; - -#define IP6_MIN_MTU (unsigned)1280 -#define ICMP6_ND_RECV_SIZE (IP6_MIN_MTU - sizeof(struct ip6_hdr)) -#define ICMP6_OPT_LEN_UNITS 8 - -typedef struct ICMP6Prefix ICMP6Prefix; - -struct ICMP6Prefix { - RefCount n_ref; - - LIST_FIELDS(ICMP6Prefix, prefixes); - - uint8_t len; - sd_event_source *timeout_valid; - struct in6_addr addr; -}; - -struct sd_icmp6_nd { - RefCount n_ref; - - enum icmp6_nd_state state; - sd_event *event; - int event_priority; - int index; - struct ether_addr mac_addr; - uint32_t mtu; - ICMP6Prefix *expired_prefix; - LIST_HEAD(ICMP6Prefix, prefixes); - int fd; - sd_event_source *recv; - sd_event_source *timeout; - int nd_sent; - sd_icmp6_nd_callback_t callback; - void *userdata; -}; - -#define log_icmp6_nd(p, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "ICMPv6 CLIENT: " fmt, ##__VA_ARGS__) - -static ICMP6Prefix *icmp6_prefix_unref(ICMP6Prefix *prefix) { - if (prefix && REFCNT_DEC(prefix->n_ref) <= 0) { - prefix->timeout_valid = - sd_event_source_unref(prefix->timeout_valid); - - free(prefix); - } - - return NULL; -} - -static int icmp6_prefix_new(ICMP6Prefix **ret) { - _cleanup_free_ ICMP6Prefix *prefix = NULL; - - assert(ret); - - prefix = new0(ICMP6Prefix, 1); - if (!prefix) - return -ENOMEM; - - prefix->n_ref = REFCNT_INIT; - LIST_INIT(prefixes, prefix); - - *ret = prefix; - prefix = NULL; - - return 0; -} - -static void icmp6_nd_notify(sd_icmp6_nd *nd, int event) -{ - if (nd->callback) - nd->callback(nd, event, nd->userdata); -} - -int sd_icmp6_nd_set_callback(sd_icmp6_nd *nd, sd_icmp6_nd_callback_t callback, - void *userdata) { - assert(nd); - - nd->callback = callback; - nd->userdata = userdata; - - return 0; -} - -int sd_icmp6_nd_set_index(sd_icmp6_nd *nd, int interface_index) { - assert(nd); - assert(interface_index >= -1); - - nd->index = interface_index; - - return 0; -} - -int sd_icmp6_nd_set_mac(sd_icmp6_nd *nd, const struct ether_addr *mac_addr) { - assert(nd); - - if (mac_addr) - memcpy(&nd->mac_addr, mac_addr, sizeof(nd->mac_addr)); - else - zero(nd->mac_addr); - - return 0; - -} - -int sd_icmp6_nd_attach_event(sd_icmp6_nd *nd, sd_event *event, int priority) { - int r; - - assert_return(nd, -EINVAL); - assert_return(!nd->event, -EBUSY); - - if (event) - nd->event = sd_event_ref(event); - else { - r = sd_event_default(&nd->event); - if (r < 0) - return 0; - } - - nd->event_priority = priority; - - return 0; -} - -int sd_icmp6_nd_detach_event(sd_icmp6_nd *nd) { - assert_return(nd, -EINVAL); - - nd->event = sd_event_unref(nd->event); - - return 0; -} - -sd_event *sd_icmp6_nd_get_event(sd_icmp6_nd *nd) { - assert(nd); - - return nd->event; -} - -sd_icmp6_nd *sd_icmp6_nd_ref(sd_icmp6_nd *nd) { - assert (nd); - - assert_se(REFCNT_INC(nd->n_ref) >= 2); - - return nd; -} - -static int icmp6_nd_init(sd_icmp6_nd *nd) { - assert(nd); - - nd->recv = sd_event_source_unref(nd->recv); - nd->fd = asynchronous_close(nd->fd); - nd->timeout = sd_event_source_unref(nd->timeout); - - return 0; -} - -sd_icmp6_nd *sd_icmp6_nd_unref(sd_icmp6_nd *nd) { - if (nd && REFCNT_DEC(nd->n_ref) == 0) { - ICMP6Prefix *prefix, *p; - - icmp6_nd_init(nd); - sd_icmp6_nd_detach_event(nd); - - LIST_FOREACH_SAFE(prefixes, prefix, p, nd->prefixes) { - LIST_REMOVE(prefixes, nd->prefixes, prefix); - - prefix = icmp6_prefix_unref(prefix); - } - - free(nd); - } - - return NULL; -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_icmp6_nd*, sd_icmp6_nd_unref); -#define _cleanup_sd_icmp6_nd_free_ _cleanup_(sd_icmp6_nd_unrefp) - -int sd_icmp6_nd_new(sd_icmp6_nd **ret) { - _cleanup_sd_icmp6_nd_free_ sd_icmp6_nd *nd = NULL; - - assert(ret); - - nd = new0(sd_icmp6_nd, 1); - if (!nd) - return -ENOMEM; - - nd->n_ref = REFCNT_INIT; - - nd->index = -1; - nd->fd = -1; - - LIST_HEAD_INIT(nd->prefixes); - - *ret = nd; - nd = NULL; - - return 0; -} - -int sd_icmp6_ra_get_mtu(sd_icmp6_nd *nd, uint32_t *mtu) { - assert_return(nd, -EINVAL); - assert_return(mtu, -EINVAL); - - if (nd->mtu == 0) - return -ENOMSG; - - *mtu = nd->mtu; - - return 0; -} - -static int icmp6_ra_prefix_timeout(sd_event_source *s, uint64_t usec, - void *userdata) { - sd_icmp6_nd *nd = userdata; - ICMP6Prefix *prefix, *p; - - assert(nd); - - LIST_FOREACH_SAFE(prefixes, prefix, p, nd->prefixes) { - if (prefix->timeout_valid != s) - continue; - - log_icmp6_nd(nd, "Prefix expired "SD_ICMP6_ADDRESS_FORMAT_STR"/%d", - SD_ICMP6_ADDRESS_FORMAT_VAL(prefix->addr), - prefix->len); - - LIST_REMOVE(prefixes, nd->prefixes, prefix); - - nd->expired_prefix = prefix; - icmp6_nd_notify(nd, - ICMP6_EVENT_ROUTER_ADVERTISMENT_PREFIX_EXPIRED); - nd->expired_prefix = NULL; - - prefix = icmp6_prefix_unref(prefix); - - break; - } - - return 0; -} - -static int icmp6_ra_prefix_set_timeout(sd_icmp6_nd *nd, - ICMP6Prefix *prefix, - usec_t valid) { - usec_t time_now; - int r; - - assert_return(prefix, -EINVAL); - - r = sd_event_now(nd->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - return r; - - prefix->timeout_valid = sd_event_source_unref(prefix->timeout_valid); - - r = sd_event_add_time(nd->event, &prefix->timeout_valid, - clock_boottime_or_monotonic(), time_now + valid, - USEC_PER_SEC, icmp6_ra_prefix_timeout, nd); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(prefix->timeout_valid, - nd->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(prefix->timeout_valid, - "icmp6-prefix-timeout"); - -error: - if (r < 0) - prefix->timeout_valid = - sd_event_source_unref(prefix->timeout_valid); - - return r; -} - -static int icmp6_prefix_match(const struct in6_addr *prefix, uint8_t prefixlen, - const struct in6_addr *addr, - uint8_t addr_prefixlen) { - uint8_t bytes, mask, len; - - assert_return(prefix, -EINVAL); - assert_return(addr, -EINVAL); - - len = MIN(prefixlen, addr_prefixlen); - - bytes = len / 8; - mask = 0xff << (8 - len % 8); - - if (memcmp(prefix, addr, bytes) != 0 || - (prefix->s6_addr[bytes] & mask) != (addr->s6_addr[bytes] & mask)) - return -EADDRNOTAVAIL; - - return 0; -} - -static int icmp6_ra_prefix_match(ICMP6Prefix *head, const struct in6_addr *addr, - uint8_t addr_len, ICMP6Prefix **result) { - ICMP6Prefix *prefix; - - LIST_FOREACH(prefixes, prefix, head) { - if (icmp6_prefix_match(&prefix->addr, prefix->len, addr, - addr_len) >= 0) { - *result = prefix; - return 0; - } - } - - return -EADDRNOTAVAIL; -} - -int sd_icmp6_prefix_match(struct in6_addr *prefix, uint8_t prefixlen, - struct in6_addr *addr) { - return icmp6_prefix_match(prefix, prefixlen, addr, - sizeof(addr->s6_addr) * 8); -} - -int sd_icmp6_ra_get_prefixlen(sd_icmp6_nd *nd, const struct in6_addr *addr, - uint8_t *prefixlen) { - int r; - ICMP6Prefix *prefix; - - assert_return(nd, -EINVAL); - assert_return(addr, -EINVAL); - assert_return(prefixlen, -EINVAL); - - r = icmp6_ra_prefix_match(nd->prefixes, addr, - sizeof(addr->s6_addr) * 8, &prefix); - if (r < 0) - return r; - - *prefixlen = prefix->len; - - return 0; -} - -int sd_icmp6_ra_get_expired_prefix(sd_icmp6_nd *nd, struct in6_addr **addr, - uint8_t *prefixlen) -{ - assert_return(nd, -EINVAL); - assert_return(addr, -EINVAL); - assert_return(prefixlen, -EINVAL); - - if (!nd->expired_prefix) - return -EADDRNOTAVAIL; - - *addr = &nd->expired_prefix->addr; - *prefixlen = nd->expired_prefix->len; - - return 0; -} - -static int icmp6_ra_prefix_update(sd_icmp6_nd *nd, ssize_t len, - const struct nd_opt_prefix_info *prefix_opt) { - int r; - ICMP6Prefix *prefix; - uint32_t lifetime; - char time_string[FORMAT_TIMESPAN_MAX]; - - assert_return(nd, -EINVAL); - assert_return(prefix_opt, -EINVAL); - - if (len < prefix_opt->nd_opt_pi_len) - return -ENOMSG; - - if (!(prefix_opt->nd_opt_pi_flags_reserved & ND_OPT_PI_FLAG_ONLINK)) - return 0; - - lifetime = be32toh(prefix_opt->nd_opt_pi_valid_time); - - r = icmp6_ra_prefix_match(nd->prefixes, - &prefix_opt->nd_opt_pi_prefix, - prefix_opt->nd_opt_pi_prefix_len, &prefix); - - if (r < 0 && r != -EADDRNOTAVAIL) - return r; - - /* if router advertisment prefix valid timeout is zero, the timeout - callback will be called immediately to clean up the prefix */ - - if (r == -EADDRNOTAVAIL) { - r = icmp6_prefix_new(&prefix); - if (r < 0) - return r; - - prefix->len = prefix_opt->nd_opt_pi_prefix_len; - - memcpy(&prefix->addr, &prefix_opt->nd_opt_pi_prefix, - sizeof(prefix->addr)); - - log_icmp6_nd(nd, "New prefix "SD_ICMP6_ADDRESS_FORMAT_STR"/%d lifetime %d expires in %s", - SD_ICMP6_ADDRESS_FORMAT_VAL(prefix->addr), - prefix->len, lifetime, - format_timespan(time_string, FORMAT_TIMESPAN_MAX, - lifetime * USEC_PER_SEC, 0)); - - LIST_PREPEND(prefixes, nd->prefixes, prefix); - - } else { - if (prefix->len != prefix_opt->nd_opt_pi_prefix_len) { - uint8_t prefixlen; - - prefixlen = MIN(prefix->len, prefix_opt->nd_opt_pi_prefix_len); - - log_icmp6_nd(nd, "Prefix length mismatch %d/%d using %d", - prefix->len, - prefix_opt->nd_opt_pi_prefix_len, - prefixlen); - - prefix->len = prefixlen; - } - - log_icmp6_nd(nd, "Update prefix "SD_ICMP6_ADDRESS_FORMAT_STR"/%d lifetime %d expires in %s", - SD_ICMP6_ADDRESS_FORMAT_VAL(prefix->addr), - prefix->len, lifetime, - format_timespan(time_string, FORMAT_TIMESPAN_MAX, - lifetime * USEC_PER_SEC, 0)); - } - - r = icmp6_ra_prefix_set_timeout(nd, prefix, lifetime * USEC_PER_SEC); - - return r; -} - -static int icmp6_ra_parse(sd_icmp6_nd *nd, struct nd_router_advert *ra, - ssize_t len) { - void *opt; - struct nd_opt_hdr *opt_hdr; - - assert_return(nd, -EINVAL); - assert_return(ra, -EINVAL); - - len -= sizeof(*ra); - if (len < ICMP6_OPT_LEN_UNITS) { - log_icmp6_nd(nd, "Router Advertisement below minimum length"); - - return -ENOMSG; - } - - opt = ra + 1; - opt_hdr = opt; - - while (len != 0 && len >= opt_hdr->nd_opt_len * ICMP6_OPT_LEN_UNITS) { - struct nd_opt_mtu *opt_mtu; - uint32_t mtu; - struct nd_opt_prefix_info *opt_prefix; - - if (opt_hdr->nd_opt_len == 0) - return -ENOMSG; - - switch (opt_hdr->nd_opt_type) { - case ND_OPT_MTU: - opt_mtu = opt; - - mtu = be32toh(opt_mtu->nd_opt_mtu_mtu); - - if (mtu != nd->mtu) { - nd->mtu = MAX(mtu, IP6_MIN_MTU); - - log_icmp6_nd(nd, "Router Advertisement link MTU %d using %d", - mtu, nd->mtu); - } - - break; - - case ND_OPT_PREFIX_INFORMATION: - opt_prefix = opt; - - icmp6_ra_prefix_update(nd, len, opt_prefix); - - break; - } - - len -= opt_hdr->nd_opt_len * ICMP6_OPT_LEN_UNITS; - opt = (void *)((char *)opt + - opt_hdr->nd_opt_len * ICMP6_OPT_LEN_UNITS); - opt_hdr = opt; - } - - if (len > 0) - log_icmp6_nd(nd, "Router Advertisement contains %zd bytes of trailing garbage", len); - - return 0; -} - -static int icmp6_router_advertisment_recv(sd_event_source *s, int fd, - uint32_t revents, void *userdata) -{ - sd_icmp6_nd *nd = userdata; - int r, buflen = 0; - ssize_t len; - _cleanup_free_ struct nd_router_advert *ra = NULL; - int event = ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE; - - assert(s); - assert(nd); - assert(nd->event); - - r = ioctl(fd, FIONREAD, &buflen); - if (r < 0 || buflen <= 0) - buflen = ICMP6_ND_RECV_SIZE; - - ra = malloc(buflen); - if (!ra) - return -ENOMEM; - - len = read(fd, ra, buflen); - if (len < 0) { - log_icmp6_nd(nd, "Could not receive message from UDP socket: %m"); - return 0; - } - - if (ra->nd_ra_type != ND_ROUTER_ADVERT) - return 0; - - if (ra->nd_ra_code != 0) - return 0; - - nd->timeout = sd_event_source_unref(nd->timeout); - - nd->state = ICMP6_ROUTER_ADVERTISMENT_LISTEN; - - if (ra->nd_ra_flags_reserved & ND_RA_FLAG_OTHER ) - event = ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER; - - if (ra->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED) - event = ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED; - - log_icmp6_nd(nd, "Received Router Advertisement flags %s/%s", - ra->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED? "MANAGED": "none", - ra->nd_ra_flags_reserved & ND_RA_FLAG_OTHER? "OTHER": "none"); - - if (event != ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE) { - r = icmp6_ra_parse(nd, ra, len); - if (r < 0) { - log_icmp6_nd(nd, "Could not parse Router Advertisement: %s", - strerror(-r)); - return 0; - } - } - - icmp6_nd_notify(nd, event); - - return 0; -} - -static int icmp6_router_solicitation_timeout(sd_event_source *s, uint64_t usec, - void *userdata) -{ - sd_icmp6_nd *nd = userdata; - uint64_t time_now, next_timeout; - struct ether_addr unset = { }; - struct ether_addr *addr = NULL; - int r; - - assert(s); - assert(nd); - assert(nd->event); - - nd->timeout = sd_event_source_unref(nd->timeout); - - if (nd->nd_sent >= ICMP6_MAX_ROUTER_SOLICITATIONS) { - icmp6_nd_notify(nd, ICMP6_EVENT_ROUTER_ADVERTISMENT_TIMEOUT); - nd->state = ICMP6_ROUTER_ADVERTISMENT_LISTEN; - } else { - if (memcmp(&nd->mac_addr, &unset, sizeof(struct ether_addr))) - addr = &nd->mac_addr; - - r = dhcp_network_icmp6_send_router_solicitation(nd->fd, addr); - if (r < 0) - log_icmp6_nd(nd, "Error sending Router Solicitation"); - else { - nd->state = ICMP6_ROUTER_SOLICITATION_SENT; - log_icmp6_nd(nd, "Sent Router Solicitation"); - } - - nd->nd_sent++; - - r = sd_event_now(nd->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) { - icmp6_nd_notify(nd, r); - return 0; - } - - next_timeout = time_now + ICMP6_ROUTER_SOLICITATION_INTERVAL; - - r = sd_event_add_time(nd->event, &nd->timeout, clock_boottime_or_monotonic(), - next_timeout, 0, - icmp6_router_solicitation_timeout, nd); - if (r < 0) { - icmp6_nd_notify(nd, r); - return 0; - } - - r = sd_event_source_set_priority(nd->timeout, - nd->event_priority); - if (r < 0) { - icmp6_nd_notify(nd, r); - return 0; - } - - r = sd_event_source_set_description(nd->timeout, "icmp6-timeout"); - if (r < 0) { - icmp6_nd_notify(nd, r); - return 0; - } - } - - return 0; -} - -int sd_icmp6_nd_stop(sd_icmp6_nd *nd) { - assert_return(nd, -EINVAL); - assert_return(nd->event, -EINVAL); - - log_icmp6_nd(client, "Stop ICMPv6"); - - icmp6_nd_init(nd); - - nd->state = ICMP6_NEIGHBOR_DISCOVERY_IDLE; - - return 0; -} - -int sd_icmp6_router_solicitation_start(sd_icmp6_nd *nd) { - int r; - - assert(nd); - assert(nd->event); - - if (nd->state != ICMP6_NEIGHBOR_DISCOVERY_IDLE) - return -EINVAL; - - if (nd->index < 1) - return -EINVAL; - - r = dhcp_network_icmp6_bind_router_solicitation(nd->index); - if (r < 0) - return r; - - nd->fd = r; - - r = sd_event_add_io(nd->event, &nd->recv, nd->fd, EPOLLIN, - icmp6_router_advertisment_recv, nd); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(nd->recv, nd->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(nd->recv, "icmp6-receive-message"); - if (r < 0) - goto error; - - r = sd_event_add_time(nd->event, &nd->timeout, clock_boottime_or_monotonic(), - 0, 0, icmp6_router_solicitation_timeout, nd); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(nd->timeout, nd->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(nd->timeout, "icmp6-timeout"); -error: - if (r < 0) - icmp6_nd_init(nd); - else - log_icmp6_nd(client, "Start Router Solicitation"); - - return r; -} diff --git a/src/libsystemd-network/sd-ipv4ll.c b/src/libsystemd-network/sd-ipv4ll.c deleted file mode 100644 index 02f2f9e0a9..0000000000 --- a/src/libsystemd-network/sd-ipv4ll.c +++ /dev/null @@ -1,648 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2014 Axis Communications AB. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <stdio.h> -#include <arpa/inet.h> - -#include "util.h" -#include "siphash24.h" -#include "list.h" -#include "refcnt.h" - -#include "ipv4ll-internal.h" -#include "sd-ipv4ll.h" - -/* Constants from the RFC */ -#define PROBE_WAIT 1 -#define PROBE_NUM 3 -#define PROBE_MIN 1 -#define PROBE_MAX 2 -#define ANNOUNCE_WAIT 2 -#define ANNOUNCE_NUM 2 -#define ANNOUNCE_INTERVAL 2 -#define MAX_CONFLICTS 10 -#define RATE_LIMIT_INTERVAL 60 -#define DEFEND_INTERVAL 10 - -#define IPV4LL_NETWORK 0xA9FE0000L -#define IPV4LL_NETMASK 0xFFFF0000L - -typedef enum IPv4LLTrigger{ - IPV4LL_TRIGGER_NULL, - IPV4LL_TRIGGER_PACKET, - IPV4LL_TRIGGER_TIMEOUT, - _IPV4LL_TRIGGER_MAX, - _IPV4LL_TRIGGER_INVALID = -1 -} IPv4LLTrigger; - -typedef enum IPv4LLState { - IPV4LL_STATE_INIT, - IPV4LL_STATE_WAITING_PROBE, - IPV4LL_STATE_PROBING, - IPV4LL_STATE_WAITING_ANNOUNCE, - IPV4LL_STATE_ANNOUNCING, - IPV4LL_STATE_RUNNING, - IPV4LL_STATE_STOPPED, - _IPV4LL_STATE_MAX, - _IPV4LL_STATE_INVALID = -1 -} IPv4LLState; - -struct sd_ipv4ll { - RefCount n_ref; - - IPv4LLState state; - int index; - int fd; - union sockaddr_union link; - int iteration; - int conflict; - sd_event_source *receive_message; - sd_event_source *timer; - usec_t next_wakeup; - usec_t defend_window; - int next_wakeup_valid; - be32_t address; - struct random_data *random_data; - char *random_data_state; - /* External */ - be32_t claimed_address; - struct ether_addr mac_addr; - sd_event *event; - int event_priority; - sd_ipv4ll_cb_t cb; - void* userdata; -}; - -static void ipv4ll_run_state_machine(sd_ipv4ll *ll, IPv4LLTrigger trigger, void *trigger_data); - -static void ipv4ll_set_state(sd_ipv4ll *ll, IPv4LLState st, int reset_counter) { - - assert(ll); - assert(st < _IPV4LL_STATE_MAX); - - if (st == ll->state && !reset_counter) { - ll->iteration++; - } else { - ll->state = st; - ll->iteration = 0; - } -} - -static sd_ipv4ll *ipv4ll_client_notify(sd_ipv4ll *ll, int event) { - assert(ll); - - if (ll->cb) { - ll = sd_ipv4ll_ref(ll); - ll->cb(ll, event, ll->userdata); - ll = sd_ipv4ll_unref(ll); - } - - return ll; -} - -static sd_ipv4ll *ipv4ll_stop(sd_ipv4ll *ll, int event) { - assert(ll); - - ll->receive_message = sd_event_source_unref(ll->receive_message); - ll->fd = safe_close(ll->fd); - - ll->timer = sd_event_source_unref(ll->timer); - - log_ipv4ll(ll, "STOPPED"); - - ll = ipv4ll_client_notify(ll, event); - - if (ll) { - ll->claimed_address = 0; - ipv4ll_set_state (ll, IPV4LL_STATE_INIT, 1); - } - - return ll; -} - -static int ipv4ll_pick_address(sd_ipv4ll *ll, be32_t *address) { - be32_t addr; - int r; - int32_t random; - - assert(ll); - assert(address); - assert(ll->random_data); - - do { - r = random_r(ll->random_data, &random); - if (r < 0) - return r; - addr = htonl((random & 0x0000FFFF) | IPV4LL_NETWORK); - } while (addr == ll->address || - (ntohl(addr) & IPV4LL_NETMASK) != IPV4LL_NETWORK || - (ntohl(addr) & 0x0000FF00) == 0x0000 || - (ntohl(addr) & 0x0000FF00) == 0xFF00); - - *address = addr; - return 0; -} - -static int ipv4ll_timer(sd_event_source *s, uint64_t usec, void *userdata) { - sd_ipv4ll *ll = (sd_ipv4ll*)userdata; - - assert(ll); - - ll->next_wakeup_valid = 0; - ipv4ll_run_state_machine(ll, IPV4LL_TRIGGER_TIMEOUT, NULL); - - return 0; -} - -static void ipv4ll_set_next_wakeup(sd_ipv4ll *ll, int sec, int random_sec) { - usec_t next_timeout = 0; - usec_t time_now = 0; - - assert(sec >= 0); - assert(random_sec >= 0); - assert(ll); - - next_timeout = sec * USEC_PER_SEC; - - if (random_sec) - next_timeout += random_u32() % (random_sec * USEC_PER_SEC); - - if (sd_event_now(ll->event, clock_boottime_or_monotonic(), &time_now) < 0) - time_now = now(clock_boottime_or_monotonic()); - - ll->next_wakeup = time_now + next_timeout; - ll->next_wakeup_valid = 1; -} - -static bool ipv4ll_arp_conflict (sd_ipv4ll *ll, struct ether_arp *arp) { - assert(ll); - assert(arp); - - if (memcmp(arp->arp_spa, &ll->address, sizeof(ll->address)) == 0 && - memcmp(arp->arp_sha, &ll->mac_addr, ETH_ALEN) != 0) - return true; - - return false; -} - -static bool ipv4ll_arp_probe_conflict (sd_ipv4ll *ll, struct ether_arp *arp) { - assert(ll); - assert(arp); - - if (ipv4ll_arp_conflict(ll, arp)) - return true; - - if (memcmp(arp->arp_tpa, &ll->address, sizeof(ll->address)) == 0 && - memcmp(arp->arp_sha, &ll->mac_addr, ETH_ALEN)) - return true; - - return false; -} - -static void ipv4ll_run_state_machine(sd_ipv4ll *ll, IPv4LLTrigger trigger, void *trigger_data) { - struct ether_arp out_packet; - int out_packet_ready = 0; - int r = 0; - - assert(ll); - assert(trigger < _IPV4LL_TRIGGER_MAX); - - if (ll->state == IPV4LL_STATE_INIT) { - - log_ipv4ll(ll, "PROBE"); - ipv4ll_set_state(ll, IPV4LL_STATE_WAITING_PROBE, 1); - ipv4ll_set_next_wakeup(ll, 0, PROBE_WAIT); - - } else if ((ll->state == IPV4LL_STATE_WAITING_PROBE && trigger == IPV4LL_TRIGGER_TIMEOUT) || - (ll->state == IPV4LL_STATE_PROBING && trigger == IPV4LL_TRIGGER_TIMEOUT && ll->iteration < PROBE_NUM-2)) { - - /* Send a probe */ - arp_packet_probe(&out_packet, ll->address, &ll->mac_addr); - out_packet_ready = 1; - ipv4ll_set_state(ll, IPV4LL_STATE_PROBING, 0); - - ipv4ll_set_next_wakeup(ll, PROBE_MIN, (PROBE_MAX-PROBE_MIN)); - - } else if (ll->state == IPV4LL_STATE_PROBING && trigger == IPV4LL_TRIGGER_TIMEOUT && ll->iteration >= PROBE_NUM-2) { - - /* Send the last probe */ - arp_packet_probe(&out_packet, ll->address, &ll->mac_addr); - out_packet_ready = 1; - ipv4ll_set_state(ll, IPV4LL_STATE_WAITING_ANNOUNCE, 1); - - ipv4ll_set_next_wakeup(ll, ANNOUNCE_WAIT, 0); - - } else if ((ll->state == IPV4LL_STATE_WAITING_ANNOUNCE && trigger == IPV4LL_TRIGGER_TIMEOUT) || - (ll->state == IPV4LL_STATE_ANNOUNCING && trigger == IPV4LL_TRIGGER_TIMEOUT && ll->iteration < ANNOUNCE_NUM-1)) { - - /* Send announcement packet */ - arp_packet_announcement(&out_packet, ll->address, &ll->mac_addr); - out_packet_ready = 1; - ipv4ll_set_state(ll, IPV4LL_STATE_ANNOUNCING, 0); - - ipv4ll_set_next_wakeup(ll, ANNOUNCE_INTERVAL, 0); - - if (ll->iteration == 0) { - log_ipv4ll(ll, "ANNOUNCE"); - ll->claimed_address = ll->address; - ll = ipv4ll_client_notify(ll, IPV4LL_EVENT_BIND); - if (!ll || ll->state == IPV4LL_STATE_STOPPED) - goto out; - - ll->conflict = 0; - } - - } else if ((ll->state == IPV4LL_STATE_ANNOUNCING && trigger == IPV4LL_TRIGGER_TIMEOUT && - ll->iteration >= ANNOUNCE_NUM-1)) { - - ipv4ll_set_state(ll, IPV4LL_STATE_RUNNING, 0); - ll->next_wakeup_valid = 0; - - } else if (trigger == IPV4LL_TRIGGER_PACKET) { - - int conflicted = 0; - usec_t time_now; - struct ether_arp* in_packet = (struct ether_arp*)trigger_data; - - assert(in_packet); - - if (IN_SET(ll->state, IPV4LL_STATE_ANNOUNCING, IPV4LL_STATE_RUNNING)) { - - if (ipv4ll_arp_conflict(ll, in_packet)) { - - r = sd_event_now(ll->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - goto out; - - /* Defend address */ - if (time_now > ll->defend_window) { - ll->defend_window = time_now + DEFEND_INTERVAL * USEC_PER_SEC; - arp_packet_announcement(&out_packet, ll->address, &ll->mac_addr); - out_packet_ready = 1; - } else - conflicted = 1; - } - - } else if (IN_SET(ll->state, IPV4LL_STATE_WAITING_PROBE, - IPV4LL_STATE_PROBING, - IPV4LL_STATE_WAITING_ANNOUNCE)) { - - conflicted = ipv4ll_arp_probe_conflict(ll, in_packet); - } - - if (conflicted) { - log_ipv4ll(ll, "CONFLICT"); - ll = ipv4ll_client_notify(ll, IPV4LL_EVENT_CONFLICT); - if (!ll || ll->state == IPV4LL_STATE_STOPPED) - goto out; - - ll->claimed_address = 0; - - /* Pick a new address */ - r = ipv4ll_pick_address(ll, &ll->address); - if (r < 0) - goto out; - ll->conflict++; - ll->defend_window = 0; - ipv4ll_set_state(ll, IPV4LL_STATE_WAITING_PROBE, 1); - - if (ll->conflict >= MAX_CONFLICTS) { - log_ipv4ll(ll, "MAX_CONFLICTS"); - ipv4ll_set_next_wakeup(ll, RATE_LIMIT_INTERVAL, PROBE_WAIT); - } else - ipv4ll_set_next_wakeup(ll, 0, PROBE_WAIT); - - } - } - - if (out_packet_ready) { - r = arp_network_send_raw_socket(ll->fd, &ll->link, &out_packet); - if (r < 0) { - log_ipv4ll(ll, "failed to send arp packet out"); - goto out; - } - } - - if (ll->next_wakeup_valid) { - ll->timer = sd_event_source_unref(ll->timer); - r = sd_event_add_time(ll->event, &ll->timer, clock_boottime_or_monotonic(), - ll->next_wakeup, 0, ipv4ll_timer, ll); - if (r < 0) - goto out; - - r = sd_event_source_set_priority(ll->timer, ll->event_priority); - if (r < 0) - goto out; - - r = sd_event_source_set_description(ll->timer, "ipv4ll-timer"); - if (r < 0) - goto out; - } - -out: - if (r < 0 && ll) - ipv4ll_stop(ll, r); -} - -static int ipv4ll_receive_message(sd_event_source *s, int fd, - uint32_t revents, void *userdata) { - int r; - struct ether_arp arp; - sd_ipv4ll *ll = (sd_ipv4ll*)userdata; - - assert(ll); - - r = read(fd, &arp, sizeof(struct ether_arp)); - if (r < (int) sizeof(struct ether_arp)) - return 0; - - r = arp_packet_verify_headers(&arp); - if (r < 0) - return 0; - - ipv4ll_run_state_machine(ll, IPV4LL_TRIGGER_PACKET, &arp); - - return 0; -} - -int sd_ipv4ll_set_index(sd_ipv4ll *ll, int interface_index) { - assert_return(ll, -EINVAL); - assert_return(interface_index > 0, -EINVAL); - assert_return(IN_SET(ll->state, IPV4LL_STATE_INIT, - IPV4LL_STATE_STOPPED), -EBUSY); - - ll->index = interface_index; - - return 0; -} - -int sd_ipv4ll_set_mac(sd_ipv4ll *ll, const struct ether_addr *addr) { - bool need_restart = false; - - assert_return(ll, -EINVAL); - assert_return(addr, -EINVAL); - - if (memcmp(&ll->mac_addr, addr, ETH_ALEN) == 0) - return 0; - - if (!IN_SET(ll->state, IPV4LL_STATE_INIT, IPV4LL_STATE_STOPPED)) { - log_ipv4ll(ll, "Changing MAC address on running IPv4LL " - "client, restarting"); - ll = ipv4ll_stop(ll, IPV4LL_EVENT_STOP); - need_restart = true; - } - - if (!ll) - return 0; - - memcpy(&ll->mac_addr, addr, ETH_ALEN); - - if (need_restart) - sd_ipv4ll_start(ll); - - return 0; -} - -int sd_ipv4ll_detach_event(sd_ipv4ll *ll) { - assert_return(ll, -EINVAL); - - ll->event = sd_event_unref(ll->event); - - return 0; -} - -int sd_ipv4ll_attach_event(sd_ipv4ll *ll, sd_event *event, int priority) { - int r; - - assert_return(ll, -EINVAL); - assert_return(!ll->event, -EBUSY); - - if (event) - ll->event = sd_event_ref(event); - else { - r = sd_event_default(&ll->event); - if (r < 0) { - ipv4ll_stop(ll, IPV4LL_EVENT_STOP); - return r; - } - } - - ll->event_priority = priority; - - return 0; -} - -int sd_ipv4ll_set_callback(sd_ipv4ll *ll, sd_ipv4ll_cb_t cb, void *userdata) { - assert_return(ll, -EINVAL); - - ll->cb = cb; - ll->userdata = userdata; - - return 0; -} - -int sd_ipv4ll_get_address(sd_ipv4ll *ll, struct in_addr *address){ - assert_return(ll, -EINVAL); - assert_return(address, -EINVAL); - - if (ll->claimed_address == 0) { - return -ENOENT; - } - - address->s_addr = ll->claimed_address; - return 0; -} - -int sd_ipv4ll_set_address_seed (sd_ipv4ll *ll, uint8_t seed[8]) { - unsigned int entropy; - int r; - - assert_return(ll, -EINVAL); - assert_return(seed, -EINVAL); - - entropy = *seed; - - free(ll->random_data); - free(ll->random_data_state); - - ll->random_data = new0(struct random_data, 1); - ll->random_data_state = new0(char, 128); - - if (!ll->random_data || !ll->random_data_state) { - r = -ENOMEM; - goto error; - } - - r = initstate_r((unsigned int)entropy, ll->random_data_state, 128, ll->random_data); - if (r < 0) - goto error; - -error: - if (r < 0){ - free(ll->random_data); - free(ll->random_data_state); - ll->random_data = NULL; - ll->random_data_state = NULL; - } - return r; -} - -bool sd_ipv4ll_is_running(sd_ipv4ll *ll) { - assert_return(ll, -EINVAL); - - return !IN_SET(ll->state, IPV4LL_STATE_INIT, IPV4LL_STATE_STOPPED); -} - -#define HASH_KEY SD_ID128_MAKE(df,04,22,98,3f,ad,14,52,f9,87,2e,d1,9c,70,e2,f2) - -int sd_ipv4ll_start (sd_ipv4ll *ll) { - int r; - - assert_return(ll, -EINVAL); - assert_return(ll->event, -EINVAL); - assert_return(ll->index > 0, -EINVAL); - assert_return(IN_SET(ll->state, IPV4LL_STATE_INIT, - IPV4LL_STATE_STOPPED), -EBUSY); - - ll->state = IPV4LL_STATE_INIT; - - r = arp_network_bind_raw_socket(ll->index, &ll->link); - - if (r < 0) - goto out; - - ll->fd = r; - ll->conflict = 0; - ll->defend_window = 0; - ll->claimed_address = 0; - - if (!ll->random_data) { - uint8_t seed[8]; - - /* Fallback to mac */ - siphash24(seed, &ll->mac_addr.ether_addr_octet, - ETH_ALEN, HASH_KEY.bytes); - - r = sd_ipv4ll_set_address_seed(ll, seed); - if (r < 0) - goto out; - } - - if (ll->address == 0) { - r = ipv4ll_pick_address(ll, &ll->address); - if (r < 0) - goto out; - } - - ipv4ll_set_state (ll, IPV4LL_STATE_INIT, 1); - - r = sd_event_add_io(ll->event, &ll->receive_message, ll->fd, - EPOLLIN, ipv4ll_receive_message, ll); - if (r < 0) - goto out; - - r = sd_event_source_set_priority(ll->receive_message, ll->event_priority); - if (r < 0) - goto out; - - r = sd_event_source_set_description(ll->receive_message, "ipv4ll-receive-message"); - if (r < 0) - goto out; - - r = sd_event_add_time(ll->event, - &ll->timer, - clock_boottime_or_monotonic(), - now(clock_boottime_or_monotonic()), 0, - ipv4ll_timer, ll); - - if (r < 0) - goto out; - - r = sd_event_source_set_priority(ll->timer, ll->event_priority); - if (r < 0) - goto out; - - r = sd_event_source_set_description(ll->timer, "ipv4ll-timer"); -out: - if (r < 0) - ipv4ll_stop(ll, IPV4LL_EVENT_STOP); - - return 0; -} - -int sd_ipv4ll_stop(sd_ipv4ll *ll) { - ipv4ll_stop(ll, IPV4LL_EVENT_STOP); - if (ll) - ipv4ll_set_state(ll, IPV4LL_STATE_STOPPED, 1); - - return 0; -} - -sd_ipv4ll *sd_ipv4ll_ref(sd_ipv4ll *ll) { - if (ll) - assert_se(REFCNT_INC(ll->n_ref) >= 2); - - return ll; -} - -sd_ipv4ll *sd_ipv4ll_unref(sd_ipv4ll *ll) { - if (ll && REFCNT_DEC(ll->n_ref) == 0) { - ll->receive_message = - sd_event_source_unref(ll->receive_message); - ll->fd = safe_close(ll->fd); - - ll->timer = sd_event_source_unref(ll->timer); - - sd_ipv4ll_detach_event(ll); - - free(ll->random_data); - free(ll->random_data_state); - free(ll); - - return NULL; - } - - return ll; -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(sd_ipv4ll*, sd_ipv4ll_unref); -#define _cleanup_ipv4ll_free_ _cleanup_(sd_ipv4ll_unrefp) - -int sd_ipv4ll_new(sd_ipv4ll **ret) { - _cleanup_ipv4ll_free_ sd_ipv4ll *ll = NULL; - - assert_return(ret, -EINVAL); - - ll = new0(sd_ipv4ll, 1); - if (!ll) - return -ENOMEM; - - ll->n_ref = REFCNT_INIT; - ll->state = IPV4LL_STATE_INIT; - ll->index = -1; - ll->fd = -1; - - *ret = ll; - ll = NULL; - - return 0; -} diff --git a/src/libsystemd-network/sd-lldp.c b/src/libsystemd-network/sd-lldp.c deleted file mode 100644 index fddda97f52..0000000000 --- a/src/libsystemd-network/sd-lldp.c +++ /dev/null @@ -1,684 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <arpa/inet.h> - -#include "siphash24.h" -#include "hashmap.h" - -#include "lldp-tlv.h" -#include "lldp-port.h" -#include "sd-lldp.h" -#include "prioq.h" -#include "lldp-internal.h" -#include "lldp-util.h" - -typedef enum LLDPAgentRXState { - LLDP_AGENT_RX_WAIT_PORT_OPERATIONAL = 4, - LLDP_AGENT_RX_DELETE_AGED_INFO, - LLDP_AGENT_RX_LLDP_INITIALIZE, - LLDP_AGENT_RX_WAIT_FOR_FRAME, - LLDP_AGENT_RX_RX_FRAME, - LLDP_AGENT_RX_DELETE_INFO, - LLDP_AGENT_RX_UPDATE_INFO, - _LLDP_AGENT_RX_STATE_MAX, - _LLDP_AGENT_RX_INVALID = -1, -} LLDPAgentRXState; - -/* Section 10.5.2.2 Reception counters */ -struct lldp_agent_statistics { - uint64_t stats_ageouts_total; - uint64_t stats_frames_discarded_total; - uint64_t stats_frames_in_errors_total; - uint64_t stats_frames_in_total; - uint64_t stats_tlvs_discarded_total; - uint64_t stats_tlvs_unrecognized_total; -}; - -struct sd_lldp { - lldp_port *port; - - Prioq *by_expiry; - Hashmap *neighbour_mib; - - sd_lldp_cb_t cb; - - void *userdata; - - LLDPAgentRXState rx_state; - lldp_agent_statistics statistics; -}; - -static unsigned long chassis_id_hash_func(const void *p, - const uint8_t hash_key[HASH_KEY_SIZE]) { - uint64_t u; - const lldp_chassis_id *id = p; - - assert(id); - - siphash24((uint8_t *) &u, id->data, id->length, hash_key); - - return (unsigned long) u; -} - -static int chassis_id_compare_func(const void *_a, const void *_b) { - const lldp_chassis_id *a, *b; - - a = _a; - b = _b; - - assert(!a->length || a->data); - assert(!b->length || b->data); - - if (a->type != b->type) - return -1; - - if (a->length != b->length) - return a->length < b->length ? -1 : 1; - - return memcmp(a->data, b->data, a->length); -} - -static const struct hash_ops chassis_id_hash_ops = { - .hash = chassis_id_hash_func, - .compare = chassis_id_compare_func -}; - -static void lldp_mib_delete_objects(sd_lldp *lldp); -static void lldp_set_state(sd_lldp *lldp, LLDPAgentRXState state); -static void lldp_run_state_machine(sd_lldp *ll); - -static int lldp_receive_frame(sd_lldp *lldp, tlv_packet *tlv) { - int r; - - assert(lldp); - assert(tlv); - - /* Remove expired packets */ - if (prioq_size(lldp->by_expiry) > 0) { - - lldp_set_state(lldp, LLDP_AGENT_RX_DELETE_INFO); - - lldp_mib_delete_objects(lldp); - } - - r = lldp_mib_add_objects(lldp->by_expiry, lldp->neighbour_mib, tlv); - if (r < 0) - goto out; - - lldp_set_state(lldp, LLDP_AGENT_RX_UPDATE_INFO); - - log_lldp("Packet added. MIB size: %d , PQ size: %d", - hashmap_size(lldp->neighbour_mib), - prioq_size(lldp->by_expiry)); - - lldp->statistics.stats_frames_in_total ++; - - return 0; - - out: - if (r < 0) - log_lldp("Receive frame failed: %s", strerror(-r)); - - lldp_set_state(lldp, LLDP_AGENT_RX_WAIT_FOR_FRAME); - - return 0; -} - -/* 10.3.2 LLDPDU validation: rxProcessFrame() */ -int lldp_handle_packet(tlv_packet *tlv, uint16_t length) { - uint16_t type, len, i, l, t; - bool chassis_id = false; - bool malformed = false; - bool port_id = false; - bool ttl = false; - bool end = false; - lldp_port *port; - uint8_t *p, *q; - sd_lldp *lldp; - int r; - - assert(tlv); - assert(length > 0); - - port = (lldp_port *) tlv->userdata; - lldp = (sd_lldp *) port->userdata; - - if (lldp->port->status == LLDP_PORT_STATUS_DISABLED) { - log_lldp("Port is disabled : %s . Dropping ...", - lldp->port->ifname); - goto out; - } - - lldp_set_state(lldp, LLDP_AGENT_RX_RX_FRAME); - - p = tlv->pdu; - p += sizeof(struct ether_header); - - for (i = 1, l = 0; l <= length; i++) { - - memcpy(&t, p, sizeof(uint16_t)); - - type = ntohs(t) >> 9; - len = ntohs(t) & 0x01ff; - - if (type == LLDP_TYPE_END) { - if (len != 0) { - log_lldp("TLV type end is not length 0. Length:%d received . Dropping ...", - len); - - malformed = true; - goto out; - } - - end = true; - - break; - } else if (type >=_LLDP_TYPE_MAX) { - log_lldp("TLV type not recognized %d . Dropping ...", - type); - - malformed = true; - goto out; - } - - /* skip type and lengh encoding */ - p += 2; - q = p; - - p += len; - l += (len + 2); - - if (i <= 3) { - if (i != type) { - log_lldp("TLV missing or out of order. Dropping ..."); - - malformed = true; - goto out; - } - } - - switch(type) { - case LLDP_TYPE_CHASSIS_ID: - - if (len < 2) { - log_lldp("Received malformed Chassis ID TLV len = %d. Dropping", - len); - - malformed = true; - goto out; - } - - if (chassis_id) { - log_lldp("Duplicate Chassis ID TLV found. Dropping ..."); - - malformed = true; - goto out; - } - - /* Look what subtype it has */ - if (*q == LLDP_CHASSIS_SUBTYPE_RESERVED || - *q > LLDP_CHASSIS_SUBTYPE_LOCALLY_ASSIGNED) { - log_lldp("Unknown subtype: %d found in Chassis ID TLV . Dropping ...", - *q); - - malformed = true; - goto out; - - } - - chassis_id = true; - - break; - case LLDP_TYPE_PORT_ID: - - if (len < 2) { - log_lldp("Received malformed Port ID TLV len = %d. Dropping", - len); - - malformed = true; - goto out; - } - - if (port_id) { - log_lldp("Duplicate Port ID TLV found. Dropping ..."); - - malformed = true; - goto out; - } - - /* Look what subtype it has */ - if (*q == LLDP_PORT_SUBTYPE_RESERVED || - *q > LLDP_PORT_SUBTYPE_LOCALLY_ASSIGNED) { - log_lldp("Unknown subtype: %d found in Port ID TLV . Dropping ...", - *q); - - malformed = true; - goto out; - - } - - port_id = true; - - break; - case LLDP_TYPE_TTL: - - if(len != 2) { - log_lldp( - "Received invalid lenth: %d TTL TLV. Dropping ...", - len); - - malformed = true; - goto out; - } - - if (ttl) { - log_lldp("Duplicate TTL TLV found. Dropping ..."); - - malformed = true; - goto out; - } - - ttl = true; - - break; - default: - - if (len == 0) { - log_lldp("TLV type = %d's, length 0 received . Dropping ...", - type); - - malformed = true; - goto out; - } - break; - } - } - - if(!chassis_id || !port_id || !ttl || !end) { - log_lldp( "One or more mandotory TLV missing . Dropping ..."); - - malformed = true; - goto out; - - } - - r = tlv_packet_parse_pdu(tlv, length); - if (r < 0) { - log_lldp( "Failed to parse the TLV. Dropping ..."); - - malformed = true; - goto out; - } - - return lldp_receive_frame(lldp, tlv); - - out: - lldp_set_state(lldp, LLDP_AGENT_RX_WAIT_FOR_FRAME); - - if (malformed) { - lldp->statistics.stats_frames_discarded_total ++; - lldp->statistics.stats_frames_in_errors_total ++; - } - - tlv_packet_free(tlv); - - return 0; -} - -static int ttl_expiry_item_prioq_compare_func(const void *a, const void *b) { - const lldp_neighbour_port *p = a, *q = b; - - if (p->until < q->until) - return -1; - - if (p->until > q->until) - return 1; - - return 0; -} - -static void lldp_set_state(sd_lldp *lldp, LLDPAgentRXState state) { - - assert(lldp); - assert(state < _LLDP_AGENT_RX_STATE_MAX); - - lldp->rx_state = state; - - lldp_run_state_machine(lldp); -} - -static void lldp_run_state_machine(sd_lldp *lldp) { - - if (lldp->rx_state == LLDP_AGENT_RX_UPDATE_INFO) - if (lldp->cb) - lldp->cb(lldp, LLDP_AGENT_RX_UPDATE_INFO, lldp->userdata); -} - -/* 10.5.5.2.1 mibDeleteObjects () - * The mibDeleteObjects () procedure deletes all information in the LLDP remote - * systems MIB associated with the MSAP identifier if an LLDPDU is received with - * an rxTTL value of zero (see 10.3.2) or the timing counter rxInfoTTL expires. */ - -static void lldp_mib_delete_objects(sd_lldp *lldp) { - lldp_neighbour_port *p; - usec_t t = 0; - - /* Remove all entries that are past their TTL */ - for (;;) { - - if (prioq_size(lldp->by_expiry) <= 0) - break; - - p = prioq_peek(lldp->by_expiry); - if (!p) - break; - - if (t <= 0) - t = now(CLOCK_BOOTTIME); - - if (p->until > t) - break; - - lldp_neighbour_port_remove_and_free(p); - - lldp->statistics.stats_ageouts_total ++; - } -} - -static void lldp_mib_objects_flush(sd_lldp *lldp) { - lldp_neighbour_port *p, *q; - lldp_chassis *c; - - assert(lldp); - assert(lldp->neighbour_mib); - assert(lldp->by_expiry); - - /* Drop all packets */ - while ((c = hashmap_steal_first(lldp->neighbour_mib))) { - - LIST_FOREACH_SAFE(port, p, q, c->ports) { - lldp_neighbour_port_remove_and_free(p); - } - } - - assert(hashmap_size(lldp->neighbour_mib) == 0); - assert(prioq_size(lldp->by_expiry) == 0); -} - -int sd_lldp_save(sd_lldp *lldp, const char *lldp_file) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - uint8_t *mac, *port_id, type; - lldp_neighbour_port *p; - uint16_t data = 0, length = 0; - char buf[LINE_MAX]; - lldp_chassis *c; - usec_t time; - Iterator i; - int r; - - assert(lldp); - assert(lldp_file); - - r = fopen_temporary(lldp_file, &f, &temp_path); - if (r < 0) - goto finish; - - fchmod(fileno(f), 0644); - - HASHMAP_FOREACH(c, lldp->neighbour_mib, i) { - LIST_FOREACH(port, p, c->ports) { - _cleanup_free_ char *s = NULL; - char *k, *t; - - r = lldp_read_chassis_id(p->packet, &type, &length, &mac); - if (r < 0) - continue; - - sprintf(buf, "'_Chassis=%02x:%02x:%02x:%02x:%02x:%02x' '_CType=%d' ", - mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], type); - - s = strdup(buf); - if (!s) - return -ENOMEM; - - r = lldp_read_port_id(p->packet, &type, &length, &port_id); - if (r < 0) - continue; - - if (type != LLDP_PORT_SUBTYPE_MAC_ADDRESS) { - k = strndup((char *) port_id, length -1); - if (!k) - return -ENOMEM; - - sprintf(buf, "'_Port=%s' '_PType=%d' ", k , type); - free(k); - } else { - mac = port_id; - sprintf(buf, "'_Port=%02x:%02x:%02x:%02x:%02x:%02x' '_PType=%d' ", - mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], type); - } - - k = strappend(s, buf); - if (!k) - return -ENOMEM; - - free(s); - s = k; - - time = now(CLOCK_BOOTTIME); - - /* Don't write expired packets */ - if (time - p->until <= 0) - continue; - - sprintf(buf, "'_TTL="USEC_FMT"' ", p->until); - - k = strappend(s, buf); - if (!k) - return -ENOMEM; - - free(s); - s = k; - - r = lldp_read_system_name(p->packet, &length, &k); - if (r < 0) - k = strappend(s, "'_NAME=N/A' "); - else { - t = strndup(k, length); - if (!t) - return -ENOMEM; - - k = strjoin(s, "'_NAME=", t, "' ", NULL); - free(t); - } - - if (!k) - return -ENOMEM; - - free(s); - s = k; - - (void) lldp_read_system_capability(p->packet, &data); - - sprintf(buf, "'_CAP=%x'", data); - - k = strappend(s, buf); - if (!k) - return -ENOMEM; - - free(s); - s = k; - - fprintf(f, "%s\n", s); - } - } - r = 0; - - fflush(f); - - if (ferror(f) || rename(temp_path, lldp_file) < 0) { - r = -errno; - unlink(lldp_file); - unlink(temp_path); - } - - finish: - if (r < 0) - log_error("Failed to save lldp data %s: %s", lldp_file, strerror(-r)); - - return r; -} - -int sd_lldp_start(sd_lldp *lldp) { - int r; - - assert_return(lldp, -EINVAL); - assert_return(lldp->port, -EINVAL); - - lldp->port->status = LLDP_PORT_STATUS_ENABLED; - - lldp_set_state(lldp, LLDP_AGENT_RX_LLDP_INITIALIZE); - - r = lldp_port_start(lldp->port); - if (r < 0) { - log_lldp("Failed to start Port : %s , %s", - lldp->port->ifname, - strerror(-r)); - - lldp_set_state(lldp, LLDP_AGENT_RX_WAIT_PORT_OPERATIONAL); - - return r; - } - - lldp_set_state(lldp, LLDP_AGENT_RX_WAIT_FOR_FRAME); - - return 0; -} - -int sd_lldp_stop(sd_lldp *lldp) { - int r; - - assert_return(lldp, -EINVAL); - assert_return(lldp->port, -EINVAL); - - lldp->port->status = LLDP_PORT_STATUS_DISABLED; - - r = lldp_port_stop(lldp->port); - if (r < 0) - return r; - - lldp_mib_objects_flush(lldp); - - return 0; -} - -int sd_lldp_attach_event(sd_lldp *lldp, sd_event *event, int priority) { - int r; - - assert_return(lldp, -EINVAL); - assert_return(!lldp->port->event, -EBUSY); - - if (event) - lldp->port->event = sd_event_ref(event); - else { - r = sd_event_default(&lldp->port->event); - if (r < 0) - return r; - } - - lldp->port->event_priority = priority; - - return 0; -} - -int sd_lldp_detach_event(sd_lldp *lldp) { - - assert_return(lldp, -EINVAL); - - lldp->port->event = sd_event_unref(lldp->port->event); - - return 0; -} - -int sd_lldp_set_callback(sd_lldp *lldp, sd_lldp_cb_t cb, void *userdata) { - assert_return(lldp, -EINVAL); - - lldp->cb = cb; - lldp->userdata = userdata; - - return 0; -} - -void sd_lldp_free(sd_lldp *lldp) { - - if (!lldp) - return; - - /* Drop all packets */ - lldp_mib_objects_flush(lldp); - - lldp_port_free(lldp->port); - - hashmap_free(lldp->neighbour_mib); - prioq_free(lldp->by_expiry); - - free(lldp); -} - -int sd_lldp_new(int ifindex, - const char *ifname, - const struct ether_addr *mac, - sd_lldp **ret) { - _cleanup_lldp_free_ sd_lldp *lldp = NULL; - int r; - - assert_return(ret, -EINVAL); - assert_return(ifindex > 0, -EINVAL); - assert_return(ifname, -EINVAL); - assert_return(mac, -EINVAL); - - lldp = new0(sd_lldp, 1); - if (!lldp) - return -ENOMEM; - - r = lldp_port_new(ifindex, ifname, mac, lldp, &lldp->port); - if (r < 0) - return r; - - lldp->neighbour_mib = hashmap_new(&chassis_id_hash_ops); - if (!lldp->neighbour_mib) - return -ENOMEM; - - r = prioq_ensure_allocated(&lldp->by_expiry, - ttl_expiry_item_prioq_compare_func); - if (r < 0) - return r; - - lldp->rx_state = LLDP_AGENT_RX_WAIT_PORT_OPERATIONAL; - - *ret = lldp; - lldp = NULL; - - return 0; -} diff --git a/src/libsystemd-network/sd-pppoe.c b/src/libsystemd-network/sd-pppoe.c deleted file mode 100644 index 601f3bd400..0000000000 --- a/src/libsystemd-network/sd-pppoe.c +++ /dev/null @@ -1,801 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -/* See RFC 2516 */ - -#include <sys/ioctl.h> -#include <linux/ppp_defs.h> -#include <linux/ppp-ioctl.h> -#include <net/if.h> -#include <netinet/in.h> -#include <linux/if_pppox.h> - -#include "sd-pppoe.h" - -#include "event-util.h" - -#include "util.h" -#include "socket-util.h" -#include "async.h" -#include "refcnt.h" -#include "utf8.h" - -#define PPPOE_MAX_PACKET_SIZE 1484 -#define PPPOE_MAX_PADR_RESEND 16 - -/* TODO: move this to socket-util.h without getting into - * a mess with the includes */ -union sockaddr_union_pppox { - struct sockaddr sa; - struct sockaddr_pppox pppox; -}; - -typedef enum PPPoEState { - PPPOE_STATE_INITIALIZING, - PPPOE_STATE_REQUESTING, - PPPOE_STATE_RUNNING, - PPPOE_STATE_STOPPED, - _PPPOE_STATE_MAX, - _PPPOE_STATE_INVALID = -1, -} PPPoEState; - -typedef struct PPPoETags { - char *service_name; - char *ac_name; - uint8_t *host_uniq; - size_t host_uniq_len; - uint8_t *cookie; - size_t cookie_len; -} PPPoETags; - -struct sd_pppoe { - RefCount n_ref; - - PPPoEState state; - uint64_t host_uniq; - - int ifindex; - char *ifname; - - sd_event *event; - int event_priority; - int fd; - sd_event_source *io; - sd_event_source *timeout; - int padr_resend_count; - - char *service_name; - struct ether_addr peer_mac; - be16_t session_id; - - int pppoe_fd; - int channel; - - sd_pppoe_cb_t cb; - void *userdata; - - PPPoETags tags; -}; - -#define PPPOE_PACKET_LENGTH(header) \ - be16toh((header)->length) - -#define PPPOE_PACKET_TAIL(packet) \ - (struct pppoe_tag*)((uint8_t*)(packet) + sizeof(struct pppoe_hdr) + PPPOE_PACKET_LENGTH(packet)) - -#define PPPOE_TAG_LENGTH(tag) \ - be16toh((tag)->tag_len) - -#define PPPOE_TAG_TYPE(tag) \ - (tag)->tag_type - -#define PPPOE_TAG_NEXT(tag) \ - (struct pppoe_tag *)((uint8_t *)(tag) + sizeof(struct pppoe_tag) + PPPOE_TAG_LENGTH(tag)) - -#define PPPOE_TAGS_FOREACH(tag, header) \ - for (tag = (header)->tag; \ - ((uint8_t *)(tag) + sizeof(struct pppoe_tag) < (uint8_t*)PPPOE_PACKET_TAIL(header)) && \ - (PPPOE_TAG_NEXT(tag) <= PPPOE_PACKET_TAIL(header)) && \ - (tag >= (header)->tag) && \ - (PPPOE_TAG_TYPE(tag) != PTT_EOL); \ - tag = PPPOE_TAG_NEXT(tag)) - -static void pppoe_tags_clear(PPPoETags *tags) { - free(tags->service_name); - free(tags->ac_name); - free(tags->host_uniq); - free(tags->cookie); - - zero(*tags); -} - -int sd_pppoe_set_ifindex(sd_pppoe *ppp, int ifindex) { - assert_return(ppp, -EINVAL); - assert_return(ifindex > 0, -EINVAL); - - ppp->ifindex = ifindex; - - return 0; -} - -int sd_pppoe_set_ifname(sd_pppoe *ppp, const char *ifname) { - char *name; - - assert_return(ppp, -EINVAL); - assert_return(ifname, -EINVAL); - - if (strlen(ifname) > IFNAMSIZ) - return -EINVAL; - - name = strdup(ifname); - if (!name) - return -ENOMEM; - - free(ppp->ifname); - ppp->ifname = name; - - return 0; -} - -int sd_pppoe_set_service_name(sd_pppoe *ppp, const char *service_name) { - _cleanup_free_ char *name = NULL; - - assert_return(ppp, -EINVAL); - - if (service_name) { - name = strdup(service_name); - if (!name) - return -ENOMEM; - } - - free(ppp->service_name); - ppp->service_name = name; - name = NULL; - - return 0; -} - -int sd_pppoe_attach_event(sd_pppoe *ppp, sd_event *event, int priority) { - int r; - - assert_return(ppp, -EINVAL); - assert_return(!ppp->event, -EBUSY); - - if (event) - ppp->event = sd_event_ref(event); - else { - r = sd_event_default(&ppp->event); - if (r < 0) - return r; - } - - ppp->event_priority = priority; - - return 0; -} - -int sd_pppoe_detach_event(sd_pppoe *ppp) { - assert_return(ppp, -EINVAL); - - ppp->event = sd_event_unref(ppp->event); - - return 0; -} - -sd_pppoe *sd_pppoe_ref(sd_pppoe *ppp) { - if (ppp) - assert_se(REFCNT_INC(ppp->n_ref) >= 2); - - return ppp; -} - -sd_pppoe *sd_pppoe_unref(sd_pppoe *ppp) { - if (ppp && REFCNT_DEC(ppp->n_ref) <= 0) { - pppoe_tags_clear(&ppp->tags); - free(ppp->ifname); - free(ppp->service_name); - sd_pppoe_stop(ppp); - sd_pppoe_detach_event(ppp); - - free(ppp); - } - - return NULL; -} - -int sd_pppoe_new (sd_pppoe **ret) { - sd_pppoe *ppp; - - assert_return(ret, -EINVAL); - - ppp = new0(sd_pppoe, 1); - if (!ppp) - return -ENOMEM; - - ppp->n_ref = REFCNT_INIT; - ppp->state = _PPPOE_STATE_INVALID; - ppp->ifindex = -1; - ppp->fd = -1; - ppp->pppoe_fd = -1; - ppp->padr_resend_count = PPPOE_MAX_PADR_RESEND; - - *ret = ppp; - - return 0; -} - -int sd_pppoe_get_channel(sd_pppoe *ppp, int *channel) { - assert_return(ppp, -EINVAL); - assert_return(channel, -EINVAL); - assert_return(ppp->pppoe_fd != -1, -EUNATCH); - assert_return(ppp->state == PPPOE_STATE_RUNNING, -EUNATCH); - - *channel = ppp->channel; - - return 0; -} - -int sd_pppoe_set_callback(sd_pppoe *ppp, sd_pppoe_cb_t cb, void *userdata) { - assert_return(ppp, -EINVAL); - - ppp->cb = cb; - ppp->userdata = userdata; - - return 0; -} - -static void pppoe_tag_append(struct pppoe_hdr *packet, size_t packet_size, be16_t tag_type, const void *tag_data, uint16_t tag_len) { - struct pppoe_tag *tag; - - assert(packet); - assert(sizeof(struct pppoe_hdr) + PPPOE_PACKET_LENGTH(packet) + sizeof(struct pppoe_tag) + tag_len <= packet_size); - assert(!(!tag_data ^ !tag_len)); - - tag = PPPOE_PACKET_TAIL(packet); - - tag->tag_len = htobe16(tag_len); - tag->tag_type = tag_type; - if (tag_data) - memcpy(tag->tag_data, tag_data, tag_len); - - packet->length = htobe16(PPPOE_PACKET_LENGTH(packet) + sizeof(struct pppoe_tag) + tag_len); -} - -static int pppoe_send(sd_pppoe *ppp, uint8_t code) { - union sockaddr_union link = { - .ll = { - .sll_family = AF_PACKET, - .sll_protocol = htons(ETH_P_PPP_DISC), - .sll_halen = ETH_ALEN, - }, - }; - _cleanup_free_ struct pppoe_hdr *packet = NULL; - int r; - - assert(ppp); - assert(ppp->fd != -1); - assert(IN_SET(code, PADI_CODE, PADR_CODE, PADT_CODE)); - - link.ll.sll_ifindex = ppp->ifindex; - if (code == PADI_CODE) - memset(&link.ll.sll_addr, 0xff, ETH_ALEN); - else - memcpy(&link.ll.sll_addr, &ppp->peer_mac, ETH_ALEN); - - packet = malloc0(PPPOE_MAX_PACKET_SIZE); - if (!packet) - return -ENOMEM; - - packet->ver = 0x1; - packet->type = 0x1; - packet->code = code; - if (code == PADT_CODE) - packet->sid = ppp->session_id; - - /* Service-Name */ - pppoe_tag_append(packet, PPPOE_MAX_PACKET_SIZE, PTT_SRV_NAME, - ppp->service_name, ppp->service_name ? strlen(ppp->service_name) : 0); - - /* AC-Cookie */ - if (code == PADR_CODE && ppp->tags.cookie) - pppoe_tag_append(packet, PPPOE_MAX_PACKET_SIZE, PTT_AC_COOKIE, - ppp->tags.cookie, ppp->tags.cookie_len); - - /* Host-Uniq */ - if (code != PADT_CODE) { - ppp->host_uniq = random_u64(); - - pppoe_tag_append(packet, PPPOE_MAX_PACKET_SIZE, PTT_HOST_UNIQ, - &ppp->host_uniq, sizeof(ppp->host_uniq)); - } - - r = sendto(ppp->fd, packet, sizeof(struct pppoe_hdr) + PPPOE_PACKET_LENGTH(packet), - 0, &link.sa, sizeof(link.ll)); - if (r < 0) - return -errno; - - return 0; -} - -static int pppoe_timeout(sd_event_source *s, uint64_t usec, void *userdata); - -static int pppoe_arm_timeout(sd_pppoe *ppp) { - _cleanup_event_source_unref_ sd_event_source *timeout = NULL; - usec_t next_timeout = 0; - int r; - - assert(ppp); - - r = sd_event_now(ppp->event, clock_boottime_or_monotonic(), &next_timeout); - if (r == -ENODATA) - next_timeout = now(clock_boottime_or_monotonic()); - else if (r < 0) - return r; - - next_timeout += 500 * USEC_PER_MSEC; - - r = sd_event_add_time(ppp->event, &timeout, clock_boottime_or_monotonic(), next_timeout, - 10 * USEC_PER_MSEC, pppoe_timeout, ppp); - if (r < 0) - return r; - - r = sd_event_source_set_priority(timeout, ppp->event_priority); - if (r < 0) - return r; - - sd_event_source_unref(ppp->timeout); - ppp->timeout = timeout; - timeout = NULL; - - return 0; -} - -static int pppoe_send_initiation(sd_pppoe *ppp) { - int r; - - r = pppoe_send(ppp, PADI_CODE); - if (r < 0) - return r; - - log_debug("PPPoE: sent DISCOVER (Service-Name: %s)", - ppp->service_name ? : ""); - - pppoe_arm_timeout(ppp); - - return r; -} - -static int pppoe_send_request(sd_pppoe *ppp) { - int r; - - r = pppoe_send(ppp, PADR_CODE); - if (r < 0) - return r; - - log_debug("PPPoE: sent REQUEST"); - - ppp->padr_resend_count --; - - pppoe_arm_timeout(ppp); - - return 0; -} - -static int pppoe_send_terminate(sd_pppoe *ppp) { - int r; - - r = pppoe_send(ppp, PADT_CODE); - if (r < 0) - return r; - - log_debug("PPPoE: sent TERMINATE"); - - return 0; -} - -static int pppoe_timeout(sd_event_source *s, uint64_t usec, void *userdata) { - sd_pppoe *ppp = userdata; - int r; - - assert(ppp); - - switch (ppp->state) { - case PPPOE_STATE_INITIALIZING: - r = pppoe_send_initiation(ppp); - if (r < 0) - log_warning_errno(r, "PPPoE: sending PADI failed: %m"); - - break; - case PPPOE_STATE_REQUESTING: - if (ppp->padr_resend_count <= 0) { - log_debug("PPPoE: PADR timed out, restarting PADI"); - - r = pppoe_send_initiation(ppp); - if (r < 0) - log_warning_errno(r, "PPPoE: sending PADI failed: %m"); - - ppp->padr_resend_count = PPPOE_MAX_PADR_RESEND; - ppp->state = PPPOE_STATE_INITIALIZING; - } else { - r = pppoe_send_request(ppp); - if (r < 0) - log_warning_errno(r, "PPPoE: sending PADR failed: %m"); - } - - break; - default: - assert_not_reached("timeout in invalid state"); - } - - return 0; -} - -static int pppoe_tag_parse_binary(struct pppoe_tag *tag, uint8_t **ret, size_t *length) { - uint8_t *data; - - assert(ret); - assert(length); - - data = memdup(tag->tag_data, PPPOE_TAG_LENGTH(tag)); - if (!data) - return -ENOMEM; - - free(*ret); - *ret = data; - *length = PPPOE_TAG_LENGTH(tag); - - return 0; -} - -static int pppoe_tag_parse_string(struct pppoe_tag *tag, char **ret) { - char *string; - - assert(ret); - - string = strndup(tag->tag_data, PPPOE_TAG_LENGTH(tag)); - if (!string) - return -ENOMEM; - - free(*ret); - *ret = string; - - return 0; -} - -static int pppoe_payload_parse(PPPoETags *tags, struct pppoe_hdr *header) { - struct pppoe_tag *tag; - int r; - - assert(tags); - - pppoe_tags_clear(tags); - - PPPOE_TAGS_FOREACH(tag, header) { - switch (PPPOE_TAG_TYPE(tag)) { - case PTT_SRV_NAME: - r = pppoe_tag_parse_string(tag, &tags->service_name); - if (r < 0) - return r; - - break; - case PTT_AC_NAME: - r = pppoe_tag_parse_string(tag, &tags->ac_name); - if (r < 0) - return r; - - break; - case PTT_HOST_UNIQ: - r = pppoe_tag_parse_binary(tag, &tags->host_uniq, &tags->host_uniq_len); - if (r < 0) - return r; - - break; - case PTT_AC_COOKIE: - r = pppoe_tag_parse_binary(tag, &tags->cookie, &tags->cookie_len); - if (r < 0) - return r; - - break; - case PTT_SRV_ERR: - case PTT_SYS_ERR: - case PTT_GEN_ERR: - { - _cleanup_free_ char *error = NULL; - - /* TODO: do something more sensible with the error messages */ - r = pppoe_tag_parse_string(tag, &error); - if (r < 0) - return r; - - if (strlen(error) > 0 && utf8_is_valid(error)) - log_debug("PPPoE: error - '%s'", error); - else - log_debug("PPPoE: error"); - - break; - } - default: - log_debug("PPPoE: ignoring unknown PPPoE tag type: 0x%.2x", PPPOE_TAG_TYPE(tag)); - } - } - - return 0; -} - -static int pppoe_open_pppoe_socket(sd_pppoe *ppp) { - int s; - - assert(ppp); - assert(ppp->pppoe_fd == -1); - - s = socket(AF_PPPOX, SOCK_STREAM, 0); - if (s < 0) - return -errno; - - ppp->pppoe_fd = s; - - return 0; -} - -static int pppoe_connect_pppoe_socket(sd_pppoe *ppp) { - union sockaddr_union_pppox link = { - .pppox = { - .sa_family = AF_PPPOX, - .sa_protocol = PX_PROTO_OE, - }, - }; - int r, channel; - - assert(ppp); - assert(ppp->pppoe_fd != -1); - assert(ppp->session_id); - assert(ppp->ifname); - - link.pppox.sa_addr.pppoe.sid = ppp->session_id; - memcpy(link.pppox.sa_addr.pppoe.dev, ppp->ifname, strlen(ppp->ifname)); - memcpy(link.pppox.sa_addr.pppoe.remote, &ppp->peer_mac, ETH_ALEN); - - r = connect(ppp->pppoe_fd, &link.sa, sizeof(link.pppox)); - if (r < 0) - return r; - - r = ioctl(ppp->pppoe_fd, PPPIOCGCHAN, &channel); - if (r < 0) - return -errno; - - ppp->channel = channel; - - return 0; -} - -static int pppoe_handle_message(sd_pppoe *ppp, struct pppoe_hdr *packet, struct ether_addr *mac) { - int r; - - assert(packet); - - if (packet->ver != 0x1 || packet->type != 0x1) - return 0; - - r = pppoe_payload_parse(&ppp->tags, packet); - if (r < 0) - return 0; - - switch (ppp->state) { - case PPPOE_STATE_INITIALIZING: - if (packet->code != PADO_CODE) - return 0; - - if (ppp->tags.host_uniq_len != sizeof(ppp->host_uniq) || - memcmp(ppp->tags.host_uniq, &ppp->host_uniq, sizeof(ppp->host_uniq)) != 0) - return 0; - - log_debug("PPPoE: got OFFER (Peer: " - "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx; " - "Service-Name: '%s'; AC-Name: '%s')", - mac->ether_addr_octet[0], - mac->ether_addr_octet[1], - mac->ether_addr_octet[2], - mac->ether_addr_octet[3], - mac->ether_addr_octet[4], - mac->ether_addr_octet[5], - ppp->tags.service_name ? : "", - ppp->tags.ac_name ? : ""); - - memcpy(&ppp->peer_mac, mac, ETH_ALEN); - - r = pppoe_open_pppoe_socket(ppp); - if (r < 0) { - log_warning("PPPoE: could not open socket"); - return r; - } - - r = pppoe_send_request(ppp); - if (r < 0) - return 0; - - ppp->state = PPPOE_STATE_REQUESTING; - - break; - case PPPOE_STATE_REQUESTING: - if (packet->code != PADS_CODE) - return 0; - - if (ppp->tags.host_uniq_len != sizeof(ppp->host_uniq) || - memcmp(ppp->tags.host_uniq, &ppp->host_uniq, - sizeof(ppp->host_uniq)) != 0) - return 0; - - if (memcmp(&ppp->peer_mac, mac, ETH_ALEN) != 0) - return 0; - - ppp->session_id = packet->sid; - - log_debug("PPPoE: got CONFIRMATION (Session ID: %"PRIu16")", - be16toh(ppp->session_id)); - - r = pppoe_connect_pppoe_socket(ppp); - if (r < 0) { - log_warning("PPPoE: could not connect socket"); - return r; - } - - ppp->state = PPPOE_STATE_RUNNING; - - ppp->timeout = sd_event_source_unref(ppp->timeout); - assert(ppp->cb); - ppp->cb(ppp, PPPOE_EVENT_RUNNING, ppp->userdata); - - break; - case PPPOE_STATE_RUNNING: - if (packet->code != PADT_CODE) - return 0; - - if (memcmp(&ppp->peer_mac, mac, ETH_ALEN) != 0) - return 0; - - if (ppp->session_id != packet->sid) - return 0; - - log_debug("PPPoE: got TERMINATE"); - - ppp->state = PPPOE_STATE_STOPPED; - - assert(ppp->cb); - ppp->cb(ppp, PPPOE_EVENT_STOPPED, ppp->userdata); - - break; - case PPPOE_STATE_STOPPED: - break; - default: - assert_not_reached("PPPoE: invalid state when receiving message"); - } - - return 0; -} - -static int pppoe_receive_message(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - sd_pppoe *ppp = userdata; - _cleanup_free_ struct pppoe_hdr *packet = NULL; - union sockaddr_union link = {}; - socklen_t addrlen = sizeof(link); - int buflen = 0, len, r; - - assert(ppp); - assert(fd != -1); - - r = ioctl(fd, FIONREAD, &buflen); - if (r < 0) - return r; - - if (buflen < 0) - /* this can't be right */ - return -EIO; - - packet = malloc0(buflen); - if (!packet) - return -ENOMEM; - - len = recvfrom(fd, packet, buflen, 0, &link.sa, &addrlen); - if (len < 0) { - log_warning_errno(r, "PPPoE: could not receive message from raw socket: %m"); - return 0; - } else if ((size_t)len < sizeof(struct pppoe_hdr)) - return 0; - else if ((size_t)len != sizeof(struct pppoe_hdr) + PPPOE_PACKET_LENGTH(packet)) - return 0; - - if (link.ll.sll_halen != ETH_ALEN) - /* not ethernet? */ - return 0; - - r = pppoe_handle_message(ppp, packet, (struct ether_addr*)&link.ll.sll_addr); - if (r < 0) - return r; - - return 1; -} - -int sd_pppoe_start(sd_pppoe *ppp) { - union sockaddr_union link = { - .ll = { - .sll_family = AF_PACKET, - .sll_protocol = htons(ETH_P_PPP_DISC), - }, - }; - _cleanup_close_ int s = -1; - _cleanup_event_source_unref_ sd_event_source *io = NULL; - int r; - - assert_return(ppp, -EINVAL); - assert_return(ppp->fd == -1, -EBUSY); - assert_return(!ppp->io, -EBUSY); - assert_return(ppp->ifindex > 0, -EUNATCH); - assert_return(ppp->ifname, -EUNATCH); - assert_return(ppp->event, -EUNATCH); - assert_return(ppp->cb, -EUNATCH); - - s = socket(AF_PACKET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); - if (s < 0) - return -errno; - - link.ll.sll_ifindex = ppp->ifindex; - - r = bind(s, &link.sa, sizeof(link.ll)); - if (r < 0) - return r; - - r = sd_event_add_io(ppp->event, &io, - s, EPOLLIN, pppoe_receive_message, - ppp); - if (r < 0) - return r; - - r = sd_event_source_set_priority(io, ppp->event_priority); - if (r < 0) - return r; - - ppp->fd = s; - s = -1; - ppp->io = io; - io = NULL; - - r = pppoe_send_initiation(ppp); - if (r < 0) - return r; - - ppp->state = PPPOE_STATE_INITIALIZING; - - return 0; -} - -int sd_pppoe_stop(sd_pppoe *ppp) { - assert_return(ppp, -EINVAL); - - if (ppp->state == PPPOE_STATE_RUNNING) - pppoe_send_terminate(ppp); - - ppp->io = sd_event_source_unref(ppp->io); - ppp->timeout = sd_event_source_unref(ppp->timeout); - ppp->fd = asynchronous_close(ppp->fd); - ppp->pppoe_fd = asynchronous_close(ppp->pppoe_fd); - - return 0; -} diff --git a/src/libsystemd-network/test-dhcp-client.c b/src/libsystemd-network/test-dhcp-client.c deleted file mode 100644 index d341210887..0000000000 --- a/src/libsystemd-network/test-dhcp-client.c +++ /dev/null @@ -1,528 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <stdio.h> -#include <sys/socket.h> -#include <unistd.h> - -#include "util.h" -#include "sd-event.h" -#include "event-util.h" - -#include "dhcp-identifier.h" -#include "dhcp-protocol.h" -#include "dhcp-internal.h" -#include "sd-dhcp-client.h" - -static uint8_t mac_addr[] = {'A', 'B', 'C', '1', '2', '3'}; - -typedef int (*test_callback_recv_t)(size_t size, DHCPMessage *dhcp); - -static bool verbose = true; -static int test_fd[2]; -static test_callback_recv_t callback_recv; -static be32_t xid; -static sd_event_source *test_hangcheck; - -static int test_dhcp_hangcheck(sd_event_source *s, uint64_t usec, - void *userdata) -{ - assert_not_reached("Test case should have completed in 2 seconds"); - - return 0; -} - -static void test_request_basic(sd_event *e) -{ - int r; - - sd_dhcp_client *client; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - r = sd_dhcp_client_new(&client); - - assert_se(r >= 0); - assert_se(client); - - r = sd_dhcp_client_attach_event(client, e, 0); - assert_se(r >= 0); - - assert_se(sd_dhcp_client_set_request_option(NULL, 0) == -EINVAL); - assert_se(sd_dhcp_client_set_request_address(NULL, NULL) == -EINVAL); - assert_se(sd_dhcp_client_set_index(NULL, 0) == -EINVAL); - - assert_se(sd_dhcp_client_set_index(client, 15) == 0); - assert_se(sd_dhcp_client_set_index(client, -42) == -EINVAL); - assert_se(sd_dhcp_client_set_index(client, -1) == -EINVAL); - assert_se(sd_dhcp_client_set_index(client, 0) == -EINVAL); - assert_se(sd_dhcp_client_set_index(client, 1) == 0); - - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_SUBNET_MASK) == -EEXIST); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_ROUTER) == -EEXIST); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_HOST_NAME) == -EEXIST); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_DOMAIN_NAME) == -EEXIST); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_DOMAIN_NAME_SERVER) - == -EEXIST); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_NTP_SERVER) == -EEXIST); - - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_PAD) == -EINVAL); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_END) == -EINVAL); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_MESSAGE_TYPE) == -EINVAL); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_OVERLOAD) == -EINVAL); - assert_se(sd_dhcp_client_set_request_option(client, - DHCP_OPTION_PARAMETER_REQUEST_LIST) - == -EINVAL); - - assert_se(sd_dhcp_client_set_request_option(client, 33) == 0); - assert_se(sd_dhcp_client_set_request_option(client, 33) == -EEXIST); - assert_se(sd_dhcp_client_set_request_option(client, 44) == 0); - assert_se(sd_dhcp_client_set_request_option(client, 33) == -EEXIST); - - sd_dhcp_client_unref(client); -} - -static void test_checksum(void) -{ - uint8_t buf[20] = { - 0x45, 0x00, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, - 0x40, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xff, 0xff, 0xff, 0xff - }; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(dhcp_packet_checksum((uint8_t*)&buf, 20) == be16toh(0x78ae)); -} - -static int check_options(uint8_t code, uint8_t len, const uint8_t *option, - void *user_data) -{ - switch(code) { - case DHCP_OPTION_CLIENT_IDENTIFIER: - { - uint32_t iaid; - struct duid duid; - size_t duid_len; - - assert_se(dhcp_identifier_set_duid_en(&duid, &duid_len) >= 0); - assert_se(dhcp_identifier_set_iaid(42, mac_addr, ETH_ALEN, &iaid) >= 0); - - assert_se(len == sizeof(uint8_t) + sizeof(uint32_t) + duid_len); - assert_se(len == 19); - assert_se(option[0] == 0xff); - - assert_se(memcmp(&option[1], &iaid, sizeof(iaid)) == 0); - assert_se(memcmp(&option[5], &duid, duid_len) == 0); - break; - } - - default: - break; - } - - return 0; -} - -int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, - const void *packet, size_t len) -{ - size_t size; - _cleanup_free_ DHCPPacket *discover; - uint16_t ip_check, udp_check; - - assert_se(s >= 0); - assert_se(packet); - - size = sizeof(DHCPPacket); - assert_se(len > size); - - discover = memdup(packet, len); - - assert_se(discover->ip.ttl == IPDEFTTL); - assert_se(discover->ip.protocol == IPPROTO_UDP); - assert_se(discover->ip.saddr == INADDR_ANY); - assert_se(discover->ip.daddr == INADDR_BROADCAST); - assert_se(discover->udp.source == be16toh(DHCP_PORT_CLIENT)); - assert_se(discover->udp.dest == be16toh(DHCP_PORT_SERVER)); - - ip_check = discover->ip.check; - - discover->ip.ttl = 0; - discover->ip.check = discover->udp.len; - - udp_check = ~dhcp_packet_checksum((uint8_t*)&discover->ip.ttl, len - 8); - assert_se(udp_check == 0xffff); - - discover->ip.ttl = IPDEFTTL; - discover->ip.check = ip_check; - - ip_check = ~dhcp_packet_checksum((uint8_t*)&discover->ip, sizeof(discover->ip)); - assert_se(ip_check == 0xffff); - - assert_se(discover->dhcp.xid); - assert_se(memcmp(discover->dhcp.chaddr, &mac_addr, ETH_ALEN) == 0); - - size = len - sizeof(struct iphdr) - sizeof(struct udphdr); - - assert_se(callback_recv); - callback_recv(size, &discover->dhcp); - - return 575; -} - -int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link, - uint32_t id, const uint8_t *addr, - size_t addr_len, uint16_t arp_type) -{ - if (socketpair(AF_UNIX, SOCK_STREAM, 0, test_fd) < 0) - return -errno; - - return test_fd[0]; -} - -int dhcp_network_bind_udp_socket(be32_t address, uint16_t port) -{ - int fd; - - fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC, 0); - if (fd < 0) - return -errno; - - return fd; -} - -int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port, - const void *packet, size_t len) -{ - return 0; -} - -static int test_discover_message_verify(size_t size, struct DHCPMessage *dhcp) -{ - int res; - - res = dhcp_option_parse(dhcp, size, check_options, NULL); - assert_se(res == DHCP_DISCOVER); - - if (verbose) - printf(" recv DHCP Discover 0x%08x\n", be32toh(dhcp->xid)); - - return 0; -} - -static void test_discover_message(sd_event *e) -{ - sd_dhcp_client *client; - int res, r; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - r = sd_dhcp_client_new(&client); - assert_se(r >= 0); - assert_se(client); - - r = sd_dhcp_client_attach_event(client, e, 0); - assert_se(r >= 0); - - assert_se(sd_dhcp_client_set_index(client, 42) >= 0); - assert_se(sd_dhcp_client_set_mac(client, mac_addr, ETH_ALEN, ARPHRD_ETHER) >= 0); - - assert_se(sd_dhcp_client_set_request_option(client, 248) >= 0); - - callback_recv = test_discover_message_verify; - - res = sd_dhcp_client_start(client); - - assert_se(res == 0 || res == -EINPROGRESS); - - sd_event_run(e, (uint64_t) -1); - - sd_dhcp_client_stop(client); - sd_dhcp_client_unref(client); - - test_fd[1] = safe_close(test_fd[1]); - - callback_recv = NULL; -} - -static uint8_t test_addr_acq_offer[] = { - 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, - 0x80, 0x11, 0xb3, 0x84, 0xc0, 0xa8, 0x02, 0x01, - 0xc0, 0xa8, 0x02, 0xbf, 0x00, 0x43, 0x00, 0x44, - 0x01, 0x34, 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, - 0x6f, 0x95, 0x2f, 0x30, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xc0, 0xa8, 0x02, 0xbf, - 0xc0, 0xa8, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x63, 0x82, 0x53, 0x63, 0x35, 0x01, 0x02, 0x36, - 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x33, 0x04, 0x00, - 0x00, 0x02, 0x58, 0x01, 0x04, 0xff, 0xff, 0xff, - 0x00, 0x2a, 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x0f, - 0x09, 0x6c, 0x61, 0x62, 0x2e, 0x69, 0x6e, 0x74, - 0x72, 0x61, 0x03, 0x04, 0xc0, 0xa8, 0x02, 0x01, - 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -static uint8_t test_addr_acq_ack[] = { - 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, - 0x80, 0x11, 0xb3, 0x84, 0xc0, 0xa8, 0x02, 0x01, - 0xc0, 0xa8, 0x02, 0xbf, 0x00, 0x43, 0x00, 0x44, - 0x01, 0x34, 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xc0, 0xa8, 0x02, 0xbf, - 0xc0, 0xa8, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x63, 0x82, 0x53, 0x63, 0x35, 0x01, 0x05, 0x36, - 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x33, 0x04, 0x00, - 0x00, 0x02, 0x58, 0x01, 0x04, 0xff, 0xff, 0xff, - 0x00, 0x2a, 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x0f, - 0x09, 0x6c, 0x61, 0x62, 0x2e, 0x69, 0x6e, 0x74, - 0x72, 0x61, 0x03, 0x04, 0xc0, 0xa8, 0x02, 0x01, - 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -static void test_addr_acq_acquired(sd_dhcp_client *client, int event, - void *userdata) { - sd_event *e = userdata; - sd_dhcp_lease *lease; - struct in_addr addr; - - assert_se(client); - assert_se(event == DHCP_EVENT_IP_ACQUIRE); - - assert_se(sd_dhcp_client_get_lease(client, &lease) >= 0); - assert_se(lease); - - assert_se(sd_dhcp_lease_get_address(lease, &addr) >= 0); - assert_se(memcmp(&addr.s_addr, &test_addr_acq_ack[44], - sizeof(addr.s_addr)) == 0); - - assert_se(sd_dhcp_lease_get_netmask(lease, &addr) >= 0); - assert_se(memcmp(&addr.s_addr, &test_addr_acq_ack[285], - sizeof(addr.s_addr)) == 0); - - assert_se(sd_dhcp_lease_get_router(lease, &addr) >= 0); - assert_se(memcmp(&addr.s_addr, &test_addr_acq_ack[308], - sizeof(addr.s_addr)) == 0); - - if (verbose) - printf(" DHCP address acquired\n"); - - sd_dhcp_lease_unref(lease); - sd_event_exit(e, 0); -} - -static int test_addr_acq_recv_request(size_t size, DHCPMessage *request) { - uint16_t udp_check = 0; - uint8_t *msg_bytes = (uint8_t *)request; - int res; - - res = dhcp_option_parse(request, size, check_options, NULL); - assert_se(res == DHCP_REQUEST); - assert_se(xid == request->xid); - - assert_se(msg_bytes[size - 1] == DHCP_OPTION_END); - - if (verbose) - printf(" recv DHCP Request 0x%08x\n", be32toh(xid)); - - memcpy(&test_addr_acq_ack[26], &udp_check, sizeof(udp_check)); - memcpy(&test_addr_acq_ack[32], &xid, sizeof(xid)); - memcpy(&test_addr_acq_ack[56], &mac_addr, ETHER_ADDR_LEN); - - callback_recv = NULL; - - res = write(test_fd[1], test_addr_acq_ack, - sizeof(test_addr_acq_ack)); - assert_se(res == sizeof(test_addr_acq_ack)); - - if (verbose) - printf(" send DHCP Ack\n"); - - return 0; -}; - -static int test_addr_acq_recv_discover(size_t size, DHCPMessage *discover) { - uint16_t udp_check = 0; - uint8_t *msg_bytes = (uint8_t *)discover; - int res; - - res = dhcp_option_parse(discover, size, check_options, NULL); - assert_se(res == DHCP_DISCOVER); - - assert_se(msg_bytes[size - 1] == DHCP_OPTION_END); - - xid = discover->xid; - - if (verbose) - printf(" recv DHCP Discover 0x%08x\n", be32toh(xid)); - - memcpy(&test_addr_acq_offer[26], &udp_check, sizeof(udp_check)); - memcpy(&test_addr_acq_offer[32], &xid, sizeof(xid)); - memcpy(&test_addr_acq_offer[56], &mac_addr, ETHER_ADDR_LEN); - - callback_recv = test_addr_acq_recv_request; - - res = write(test_fd[1], test_addr_acq_offer, - sizeof(test_addr_acq_offer)); - assert_se(res == sizeof(test_addr_acq_offer)); - - if (verbose) - printf(" sent DHCP Offer\n"); - - return 0; -} - -static void test_addr_acq(sd_event *e) { - usec_t time_now = now(clock_boottime_or_monotonic()); - sd_dhcp_client *client; - int res, r; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - r = sd_dhcp_client_new(&client); - assert_se(r >= 0); - assert_se(client); - - r = sd_dhcp_client_attach_event(client, e, 0); - assert_se(r >= 0); - - assert_se(sd_dhcp_client_set_index(client, 42) >= 0); - assert_se(sd_dhcp_client_set_mac(client, mac_addr, ETH_ALEN, ARPHRD_ETHER) >= 0); - - assert_se(sd_dhcp_client_set_callback(client, test_addr_acq_acquired, e) >= 0); - - callback_recv = test_addr_acq_recv_discover; - - assert_se(sd_event_add_time(e, &test_hangcheck, - clock_boottime_or_monotonic(), - time_now + 2 * USEC_PER_SEC, 0, - test_dhcp_hangcheck, NULL) >= 0); - - res = sd_dhcp_client_start(client); - assert_se(res == 0 || res == -EINPROGRESS); - - assert_se(sd_event_loop(e) >= 0); - - test_hangcheck = sd_event_source_unref(test_hangcheck); - - assert_se(sd_dhcp_client_set_callback(client, NULL, NULL) >= 0); - assert_se(sd_dhcp_client_stop(client) >= 0); - sd_dhcp_client_unref(client); - - test_fd[1] = safe_close(test_fd[1]); - - callback_recv = NULL; - xid = 0; -} - -int main(int argc, char *argv[]) { - _cleanup_event_unref_ sd_event *e; - - log_set_max_level(LOG_DEBUG); - log_parse_environment(); - log_open(); - - assert_se(sd_event_new(&e) >= 0); - - test_request_basic(e); - test_checksum(); - - test_discover_message(e); - test_addr_acq(e); - -#ifdef VALGRIND - /* Make sure the async_close thread has finished. - * valgrind would report some of the phread_* structures - * as not cleaned up properly. */ - sleep(1); -#endif - - return 0; -} diff --git a/src/libsystemd-network/test-dhcp-option.c b/src/libsystemd-network/test-dhcp-option.c deleted file mode 100644 index a63a4ea738..0000000000 --- a/src/libsystemd-network/test-dhcp-option.c +++ /dev/null @@ -1,382 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#include <stdio.h> -#include <stdbool.h> -#include <errno.h> -#include <string.h> - -#include "util.h" -#include "macro.h" - -#include "dhcp-protocol.h" -#include "dhcp-internal.h" - -struct option_desc { - uint8_t sname[64]; - int snamelen; - uint8_t file[128]; - int filelen; - uint8_t options[128]; - int len; - bool success; - int filepos; - int snamepos; - int pos; -}; - -static bool verbose = false; - -static struct option_desc option_tests[] = { - { {}, 0, {}, 0, { 42, 5, 65, 66, 67, 68, 69 }, 7, false, }, - { {}, 0, {}, 0, { 42, 5, 65, 66, 67, 68, 69, 0, 0, - DHCP_OPTION_MESSAGE_TYPE, 1, DHCP_ACK }, 12, true, }, - { {}, 0, {}, 0, { 8, 255, 70, 71, 72 }, 5, false, }, - { {}, 0, {}, 0, { 0x35, 0x01, 0x05, 0x36, 0x04, 0x01, 0x00, 0xa8, - 0xc0, 0x33, 0x04, 0x00, 0x01, 0x51, 0x80, 0x01, - 0x04, 0xff, 0xff, 0xff, 0x00, 0x03, 0x04, 0xc0, - 0xa8, 0x00, 0x01, 0x06, 0x04, 0xc0, 0xa8, 0x00, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, - 40, true, }, - { {}, 0, {}, 0, { DHCP_OPTION_MESSAGE_TYPE, 1, DHCP_OFFER, - 42, 3, 0, 0, 0 }, 8, true, }, - { {}, 0, {}, 0, { 42, 2, 1, 2, 44 }, 5, false, }, - - { {}, 0, - { 222, 3, 1, 2, 3, DHCP_OPTION_MESSAGE_TYPE, 1, DHCP_NAK }, 8, - { DHCP_OPTION_OVERLOAD, 1, DHCP_OVERLOAD_FILE }, 3, true, }, - - { { 1, 4, 1, 2, 3, 4, DHCP_OPTION_MESSAGE_TYPE, 1, DHCP_ACK }, 9, - { 222, 3, 1, 2, 3 }, 5, - { DHCP_OPTION_OVERLOAD, 1, - DHCP_OVERLOAD_FILE|DHCP_OVERLOAD_SNAME }, 3, true, }, -}; - -static const char *dhcp_type(int type) { - switch(type) { - case DHCP_DISCOVER: - return "DHCPDISCOVER"; - case DHCP_OFFER: - return "DHCPOFFER"; - case DHCP_REQUEST: - return "DHCPREQUEST"; - case DHCP_DECLINE: - return "DHCPDECLINE"; - case DHCP_ACK: - return "DHCPACK"; - case DHCP_NAK: - return "DHCPNAK"; - case DHCP_RELEASE: - return "DHCPRELEASE"; - default: - return "unknown"; - } -} - -static void test_invalid_buffer_length(void) { - DHCPMessage message; - - assert_se(dhcp_option_parse(&message, 0, NULL, NULL) == -EINVAL); - assert_se(dhcp_option_parse(&message, sizeof(DHCPMessage) - 1, NULL, NULL) - == -EINVAL); -} - -static void test_message_init(void) { - _cleanup_free_ DHCPMessage *message = NULL; - size_t optlen = 4, optoffset; - size_t len = sizeof(DHCPMessage) + optlen; - uint8_t *magic; - - message = malloc0(len); - - assert_se(dhcp_message_init(message, BOOTREQUEST, 0x12345678, - DHCP_DISCOVER, ARPHRD_ETHER, optlen, &optoffset) >= 0); - - assert_se(message->xid == htobe32(0x12345678)); - assert_se(message->op == BOOTREQUEST); - - magic = (uint8_t*)&message->magic; - - assert_se(magic[0] == 99); - assert_se(magic[1] == 130); - assert_se(magic[2] == 83); - assert_se(magic[3] == 99); - - assert_se(dhcp_option_parse(message, len, NULL, NULL) >= 0); -} - -static DHCPMessage *create_message(uint8_t *options, uint16_t optlen, - uint8_t *file, uint8_t filelen, - uint8_t *sname, uint8_t snamelen) { - DHCPMessage *message; - size_t len = sizeof(DHCPMessage) + optlen; - - message = malloc0(len); - assert_se(message); - - if (options && optlen) - memcpy(&message->options, options, optlen); - - if (file && filelen <= 128) - memcpy(&message->file, file, filelen); - - if (sname && snamelen <= 64) - memcpy(&message->sname, sname, snamelen); - - return message; -} - -static void test_ignore_opts(uint8_t *descoption, int *descpos, int *desclen) { - assert(*descpos >= 0); - - while (*descpos < *desclen) { - switch(descoption[*descpos]) { - case DHCP_OPTION_PAD: - *descpos += 1; - break; - - case DHCP_OPTION_MESSAGE_TYPE: - case DHCP_OPTION_OVERLOAD: - *descpos += 3; - break; - - default: - return; - } - } -} - -static int test_options_cb(uint8_t code, uint8_t len, const uint8_t *option, void *user_data) { - struct option_desc *desc = user_data; - uint8_t *descoption = NULL; - int *desclen = NULL, *descpos = NULL; - uint8_t optcode = 0; - uint8_t optlen = 0; - uint8_t i; - - assert_se((!desc && !code && !len) || desc); - - if (!desc) - return -EINVAL; - - assert_se(code != DHCP_OPTION_PAD); - assert_se(code != DHCP_OPTION_END); - assert_se(code != DHCP_OPTION_MESSAGE_TYPE); - assert_se(code != DHCP_OPTION_OVERLOAD); - - while (desc->pos >= 0 || desc->filepos >= 0 || desc->snamepos >= 0) { - - if (desc->pos >= 0) { - descoption = &desc->options[0]; - desclen = &desc->len; - descpos = &desc->pos; - } else if (desc->filepos >= 0) { - descoption = &desc->file[0]; - desclen = &desc->filelen; - descpos = &desc->filepos; - } else if (desc->snamepos >= 0) { - descoption = &desc->sname[0]; - desclen = &desc->snamelen; - descpos = &desc->snamepos; - } - - assert_se(descoption && desclen && descpos); - - if (*desclen) - test_ignore_opts(descoption, descpos, desclen); - - if (*descpos < *desclen) - break; - - if (*descpos == *desclen) - *descpos = -1; - } - - assert_se(descpos); - assert_se(*descpos != -1); - - optcode = descoption[*descpos]; - optlen = descoption[*descpos + 1]; - - if (verbose) - printf("DHCP code %2d(%2d) len %2d(%2d) ", code, optcode, - len, optlen); - - assert_se(code == optcode); - assert_se(len == optlen); - - for (i = 0; i < len; i++) { - - if (verbose) - printf("0x%02x(0x%02x) ", option[i], - descoption[*descpos + 2 + i]); - - assert_se(option[i] == descoption[*descpos + 2 + i]); - } - - if (verbose) - printf("\n"); - - *descpos += optlen + 2; - - test_ignore_opts(descoption, descpos, desclen); - - if (desc->pos != -1 && desc->pos == desc->len) - desc->pos = -1; - - if (desc->filepos != -1 && desc->filepos == desc->filelen) - desc->filepos = -1; - - if (desc->snamepos != -1 && desc->snamepos == desc->snamelen) - desc->snamepos = -1; - - return 0; -} - -static void test_options(struct option_desc *desc) { - uint8_t *options = NULL; - uint8_t *file = NULL; - uint8_t *sname = NULL; - int optlen = 0; - int filelen = 0; - int snamelen = 0; - int buflen = 0; - _cleanup_free_ DHCPMessage *message = NULL; - int res; - - if (desc) { - file = &desc->file[0]; - filelen = desc->filelen; - if (!filelen) - desc->filepos = -1; - - sname = &desc->sname[0]; - snamelen = desc->snamelen; - if (!snamelen) - desc->snamepos = -1; - - options = &desc->options[0]; - optlen = desc->len; - desc->pos = 0; - } - message = create_message(options, optlen, file, filelen, - sname, snamelen); - - buflen = sizeof(DHCPMessage) + optlen; - - if (!desc) { - assert_se((res = dhcp_option_parse(message, buflen, - test_options_cb, - NULL)) == -ENOMSG); - } else if (desc->success) { - assert_se((res = dhcp_option_parse(message, buflen, - test_options_cb, - desc)) >= 0); - assert_se(desc->pos == -1 && desc->filepos == -1 && - desc->snamepos == -1); - } else - assert_se((res = dhcp_option_parse(message, buflen, - test_options_cb, - desc)) < 0); - - if (verbose) - printf("DHCP type %s\n", dhcp_type(res)); -} - -static uint8_t options[64] = { - 'A', 'B', 'C', 'D', - 160, 2, 0x11, 0x12, - 0, - 31, 8, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, - 0, - 55, 3, 0x51, 0x52, 0x53, - 17, 7, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, - 255 -}; - -static void test_option_set(void) { - _cleanup_free_ DHCPMessage *result = NULL; - size_t offset = 0, len, pos; - unsigned i; - - result = malloc0(sizeof(DHCPMessage) + 11); - assert_se(result); - - result->options[0] = 'A'; - result->options[1] = 'B'; - result->options[2] = 'C'; - result->options[3] = 'D'; - - assert_se(dhcp_option_append(result, 0, &offset, 0, DHCP_OPTION_PAD, - 0, NULL) == -ENOBUFS); - assert_se(offset == 0); - - offset = 4; - assert_se(dhcp_option_append(result, 5, &offset, 0, DHCP_OPTION_PAD, - 0, NULL) == -ENOBUFS); - assert_se(offset == 4); - assert_se(dhcp_option_append(result, 6, &offset, 0, DHCP_OPTION_PAD, - 0, NULL) >= 0); - assert_se(offset == 5); - - offset = pos = 4; - len = 11; - while (pos < len && options[pos] != DHCP_OPTION_END) { - assert_se(dhcp_option_append(result, len, &offset, DHCP_OVERLOAD_SNAME, - options[pos], - options[pos + 1], - &options[pos + 2]) >= 0); - - if (options[pos] == DHCP_OPTION_PAD) - pos++; - else - pos += 2 + options[pos + 1]; - - if (pos < len) - assert_se(offset == pos); - } - - for (i = 0; i < 9; i++) { - if (verbose) - printf("%2u: 0x%02x(0x%02x) (options)\n", i, result->options[i], - options[i]); - assert_se(result->options[i] == options[i]); - } - - if (verbose) - printf("%2d: 0x%02x(0x%02x) (options)\n", 9, result->options[9], - DHCP_OPTION_END); - - assert_se(result->options[9] == DHCP_OPTION_END); - - if (verbose) - printf("%2d: 0x%02x(0x%02x) (options)\n", 10, result->options[10], - DHCP_OPTION_PAD); - - assert_se(result->options[10] == DHCP_OPTION_PAD); - - for (i = 0; i < pos - 8; i++) { - if (verbose) - printf("%2u: 0x%02x(0x%02x) (sname)\n", i, result->sname[i], - options[i + 9]); - assert_se(result->sname[i] == options[i + 9]); - } - - if (verbose) - printf ("\n"); -} - -int main(int argc, char *argv[]) { - unsigned i; - - test_invalid_buffer_length(); - test_message_init(); - - test_options(NULL); - - for (i = 0; i < ELEMENTSOF(option_tests); i++) - test_options(&option_tests[i]); - - test_option_set(); - - return 0; -} diff --git a/src/libsystemd-network/test-dhcp-server.c b/src/libsystemd-network/test-dhcp-server.c deleted file mode 100644 index 9f60ab761e..0000000000 --- a/src/libsystemd-network/test-dhcp-server.c +++ /dev/null @@ -1,250 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation. All rights reserved. - Copyright (C) 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> - -#include "sd-event.h" -#include "event-util.h" - -#include "sd-dhcp-server.h" -#include "dhcp-server-internal.h" - -static int test_basic(sd_event *event) { - _cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL; - struct in_addr address_lo = { - .s_addr = htonl(INADDR_LOOPBACK), - }; - struct in_addr address_any = { - .s_addr = htonl(INADDR_ANY), - }; - int r; - - /* attach to loopback interface */ - assert_se(sd_dhcp_server_new(&server, 1) >= 0); - assert_se(server); - - assert_se(sd_dhcp_server_attach_event(server, event, 0) >= 0); - assert_se(sd_dhcp_server_attach_event(server, event, 0) == -EBUSY); - assert_se(sd_dhcp_server_get_event(server) == event); - assert_se(sd_dhcp_server_detach_event(server) >= 0); - assert_se(!sd_dhcp_server_get_event(server)); - assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0); - assert_se(sd_dhcp_server_attach_event(server, NULL, 0) == -EBUSY); - - assert_se(sd_dhcp_server_ref(server) == server); - assert_se(!sd_dhcp_server_unref(server)); - - assert_se(sd_dhcp_server_start(server) == -EUNATCH); - assert_se(sd_dhcp_server_set_address(server, &address_any, 28) == -EINVAL); - assert_se(sd_dhcp_server_set_address(server, &address_lo, 38) == -ERANGE); - assert_se(sd_dhcp_server_set_address(server, &address_lo, 8) >= 0); - assert_se(sd_dhcp_server_set_address(server, &address_lo, 8) == -EBUSY); - - assert_se(sd_dhcp_server_set_lease_pool(server, &address_any, 1) == -EINVAL); - assert_se(sd_dhcp_server_set_lease_pool(server, &address_lo, 0) == -EINVAL); - assert_se(sd_dhcp_server_set_lease_pool(server, &address_lo, 1) >= 0); - assert_se(sd_dhcp_server_set_lease_pool(server, &address_lo, 1) == -EBUSY); - - r = sd_dhcp_server_start(server); - - if (r == -EPERM) - return EXIT_TEST_SKIP; - assert_se(r >= 0); - - assert_se(sd_dhcp_server_start(server) == -EBUSY); - assert_se(sd_dhcp_server_stop(server) >= 0); - assert_se(sd_dhcp_server_stop(server) >= 0); - assert_se(sd_dhcp_server_start(server) >= 0); - - return 0; -} - -static void test_message_handler(void) { - _cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL; - struct { - DHCPMessage message; - struct { - uint8_t code; - uint8_t length; - uint8_t type; - } _packed_ option_type; - struct { - uint8_t code; - uint8_t length; - be32_t address; - } _packed_ option_requested_ip; - struct { - uint8_t code; - uint8_t length; - be32_t address; - } _packed_ option_server_id; - struct { - uint8_t code; - uint8_t length; - uint8_t id[7]; - } _packed_ option_client_id; - uint8_t end; - } _packed_ test = { - .message.op = BOOTREQUEST, - .message.htype = ARPHRD_ETHER, - .message.hlen = ETHER_ADDR_LEN, - .message.xid = htobe32(0x12345678), - .message.chaddr = { 'A', 'B', 'C', 'D', 'E', 'F' }, - .option_type.code = DHCP_OPTION_MESSAGE_TYPE, - .option_type.length = 1, - .option_type.type = DHCP_DISCOVER, - .end = DHCP_OPTION_END, - }; - struct in_addr address_lo = { - .s_addr = htonl(INADDR_LOOPBACK), - }; - - assert_se(sd_dhcp_server_new(&server, 1) >= 0); - assert_se(sd_dhcp_server_set_address(server, &address_lo, 8) >= 0); - assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0); - assert_se(sd_dhcp_server_start(server) >= 0); - - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - assert_se(sd_dhcp_server_set_lease_pool(server, &address_lo, 10) >= 0); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - - test.end = 0; - /* TODO, shouldn't this fail? */ - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - test.end = DHCP_OPTION_END; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - - test.option_type.code = 0; - test.option_type.length = 0; - test.option_type.type = 0; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.option_type.code = DHCP_OPTION_MESSAGE_TYPE; - test.option_type.length = 1; - test.option_type.type = DHCP_DISCOVER; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - - test.message.op = 0; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.message.op = BOOTREQUEST; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - - test.message.htype = 0; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.message.htype = ARPHRD_ETHER; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - - test.message.hlen = 0; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.message.hlen = ETHER_ADDR_LEN; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); - - test.option_type.type = DHCP_REQUEST; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.option_requested_ip.code = DHCP_OPTION_REQUESTED_IP_ADDRESS; - test.option_requested_ip.length = 4; - test.option_requested_ip.address = htobe32(0x12345678); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_NAK); - test.option_server_id.code = DHCP_OPTION_SERVER_IDENTIFIER; - test.option_server_id.length = 4; - test.option_server_id.address = htobe32(INADDR_LOOPBACK); - test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); - - test.option_server_id.address = htobe32(0x12345678); - test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.option_server_id.address = htobe32(INADDR_LOOPBACK); - test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 4); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); - test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); - - test.option_client_id.code = DHCP_OPTION_CLIENT_IDENTIFIER; - test.option_client_id.length = 7; - test.option_client_id.id[0] = 0x01; - test.option_client_id.id[1] = 'A'; - test.option_client_id.id[2] = 'B'; - test.option_client_id.id[3] = 'C'; - test.option_client_id.id[4] = 'D'; - test.option_client_id.id[5] = 'E'; - test.option_client_id.id[6] = 'F'; - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); - - test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 30); - assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); -} - -static void test_client_id_hash(void) { - DHCPClientId a = { - .length = 4, - }, b = { - .length = 4, - }; - uint8_t hash_key[HASH_KEY_SIZE] = { - '0', '1', '2', '3', '4', '5', '6', '7', - '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', - }; - - a.data = (uint8_t*)strdup("abcd"); - b.data = (uint8_t*)strdup("abcd"); - - assert_se(client_id_compare_func(&a, &b) == 0); - assert_se(client_id_hash_func(&a, hash_key) == client_id_hash_func(&b, hash_key)); - a.length = 3; - assert_se(client_id_compare_func(&a, &b) != 0); - a.length = 4; - assert_se(client_id_compare_func(&a, &b) == 0); - assert_se(client_id_hash_func(&a, hash_key) == client_id_hash_func(&b, hash_key)); - - b.length = 3; - assert_se(client_id_compare_func(&a, &b) != 0); - b.length = 4; - assert_se(client_id_compare_func(&a, &b) == 0); - assert_se(client_id_hash_func(&a, hash_key) == client_id_hash_func(&b, hash_key)); - - free(b.data); - b.data = (uint8_t*)strdup("abce"); - assert_se(client_id_compare_func(&a, &b) != 0); - - free(a.data); - free(b.data); -} - -int main(int argc, char *argv[]) { - _cleanup_event_unref_ sd_event *e; - int r; - - log_set_max_level(LOG_DEBUG); - log_parse_environment(); - log_open(); - - assert_se(sd_event_new(&e) >= 0); - - r = test_basic(e); - if (r != 0) - return r; - - test_message_handler(); - test_client_id_hash(); - - return 0; -} diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c deleted file mode 100644 index 9386f31ce4..0000000000 --- a/src/libsystemd-network/test-dhcp6-client.c +++ /dev/null @@ -1,707 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> -#include <stdio.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <unistd.h> -#include <net/ethernet.h> - -#include "socket-util.h" -#include "macro.h" -#include "sd-event.h" -#include "event-util.h" -#include "virt.h" - -#include "sd-dhcp6-client.h" -#include "dhcp6-protocol.h" -#include "dhcp6-internal.h" -#include "dhcp6-lease-internal.h" - -static struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'} -}; - -static bool verbose = true; - -static sd_event_source *hangcheck; -static int test_dhcp_fd[2]; -static int test_index = 42; -static int test_client_message_num; -static be32_t test_iaid = 0; -static uint8_t test_duid[14] = { }; - -static int test_client_basic(sd_event *e) { - sd_dhcp6_client *client; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(sd_dhcp6_client_new(&client) >= 0); - assert_se(client); - - assert_se(sd_dhcp6_client_attach_event(client, e, 0) >= 0); - - assert_se(sd_dhcp6_client_set_index(client, 15) == 0); - assert_se(sd_dhcp6_client_set_index(client, -42) == -EINVAL); - assert_se(sd_dhcp6_client_set_index(client, -1) == 0); - assert_se(sd_dhcp6_client_set_index(client, 42) >= 0); - - assert_se(sd_dhcp6_client_set_mac(client, (const uint8_t *) &mac_addr, - sizeof (mac_addr), - ARPHRD_ETHER) >= 0); - - assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_CLIENTID) == -EINVAL); - assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_DNS_SERVERS) == -EEXIST); - assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_NTP_SERVER) == -EEXIST); - assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_SNTP_SERVERS) == 0); - assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_DOMAIN_LIST) == -EEXIST); - assert_se(sd_dhcp6_client_set_request_option(client, 10) == -EINVAL); - - assert_se(sd_dhcp6_client_set_callback(client, NULL, NULL) >= 0); - - assert_se(sd_dhcp6_client_detach_event(client) >= 0); - assert_se(!sd_dhcp6_client_unref(client)); - - return 0; -} - -static int test_option(sd_event *e) { - uint8_t packet[] = { - 'F', 'O', 'O', - 0x00, DHCP6_OPTION_ORO, 0x00, 0x07, - 'A', 'B', 'C', 'D', 'E', 'F', 'G', - 0x00, DHCP6_OPTION_VENDOR_CLASS, 0x00, 0x09, - '1', '2', '3', '4', '5', '6', '7', '8', '9', - 'B', 'A', 'R', - }; - uint8_t result[] = { - 'F', 'O', 'O', - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 'B', 'A', 'R', - }; - uint16_t optcode; - size_t optlen; - uint8_t *optval, *buf, *out; - size_t zero = 0, pos = 3; - size_t buflen = sizeof(packet), outlen = sizeof(result); - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(buflen == outlen); - - assert_se(dhcp6_option_parse(&buf, &zero, &optcode, &optlen, - &optval) == -ENOMSG); - - buflen -= 3; - buf = &packet[3]; - outlen -= 3; - out = &result[3]; - - assert_se(dhcp6_option_parse(&buf, &buflen, &optcode, &optlen, - &optval) >= 0); - pos += 4 + optlen; - assert_se(buf == &packet[pos]); - assert_se(optcode == DHCP6_OPTION_ORO); - assert_se(optlen == 7); - assert_se(buflen + pos == sizeof(packet)); - - assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen, - optval) >= 0); - assert_se(out == &result[pos]); - assert_se(*out == 0x00); - - assert_se(dhcp6_option_parse(&buf, &buflen, &optcode, &optlen, - &optval) >= 0); - pos += 4 + optlen; - assert_se(buf == &packet[pos]); - assert_se(optcode == DHCP6_OPTION_VENDOR_CLASS); - assert_se(optlen == 9); - assert_se(buflen + pos == sizeof(packet)); - - assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen, - optval) >= 0); - assert_se(out == &result[pos]); - assert_se(*out == 'B'); - - assert_se(memcmp(packet, result, sizeof(packet)) == 0); - - return 0; -} - -static uint8_t msg_advertise[198] = { - 0x02, 0x0f, 0xb4, 0xe5, 0x00, 0x01, 0x00, 0x0e, - 0x00, 0x01, 0x00, 0x01, 0x1a, 0x6b, 0xf3, 0x30, - 0x3c, 0x97, 0x0e, 0xcf, 0xa3, 0x7d, 0x00, 0x03, - 0x00, 0x5e, 0x0e, 0xcf, 0xa3, 0x7d, 0x00, 0x00, - 0x00, 0x50, 0x00, 0x00, 0x00, 0x78, 0x00, 0x05, - 0x00, 0x18, 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, - 0xbe, 0xef, 0x78, 0xee, 0x1c, 0xf3, 0x09, 0x3c, - 0x55, 0xad, 0x00, 0x00, 0x00, 0x96, 0x00, 0x00, - 0x00, 0xb4, 0x00, 0x0d, 0x00, 0x32, 0x00, 0x00, - 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x28, - 0x65, 0x73, 0x29, 0x20, 0x72, 0x65, 0x6e, 0x65, - 0x77, 0x65, 0x64, 0x2e, 0x20, 0x47, 0x72, 0x65, - 0x65, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x20, 0x66, - 0x72, 0x6f, 0x6d, 0x20, 0x70, 0x6c, 0x61, 0x6e, - 0x65, 0x74, 0x20, 0x45, 0x61, 0x72, 0x74, 0x68, - 0x00, 0x17, 0x00, 0x10, 0x20, 0x01, 0x0d, 0xb8, - 0xde, 0xad, 0xbe, 0xef, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x01, 0x00, 0x18, 0x00, 0x0b, - 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, - 0x72, 0x61, 0x00, 0x00, 0x1f, 0x00, 0x10, 0x20, - 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, - 0x02, 0x00, 0x0e, 0x00, 0x01, 0x00, 0x01, 0x19, - 0x40, 0x5c, 0x53, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, - 0x53, 0x00, 0x07, 0x00, 0x01, 0x00 -}; - -static uint8_t msg_reply[173] = { - 0x07, 0xf7, 0x4e, 0x57, 0x00, 0x02, 0x00, 0x0e, - 0x00, 0x01, 0x00, 0x01, 0x19, 0x40, 0x5c, 0x53, - 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53, 0x00, 0x01, - 0x00, 0x0e, 0x00, 0x01, 0x00, 0x01, 0x1a, 0x6b, - 0xf3, 0x30, 0x3c, 0x97, 0x0e, 0xcf, 0xa3, 0x7d, - 0x00, 0x03, 0x00, 0x4a, 0x0e, 0xcf, 0xa3, 0x7d, - 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x78, - 0x00, 0x05, 0x00, 0x18, 0x20, 0x01, 0x0d, 0xb8, - 0xde, 0xad, 0xbe, 0xef, 0x78, 0xee, 0x1c, 0xf3, - 0x09, 0x3c, 0x55, 0xad, 0x00, 0x00, 0x00, 0x96, - 0x00, 0x00, 0x00, 0xb4, 0x00, 0x0d, 0x00, 0x1e, - 0x00, 0x00, 0x41, 0x6c, 0x6c, 0x20, 0x61, 0x64, - 0x64, 0x72, 0x65, 0x73, 0x73, 0x65, 0x73, 0x20, - 0x77, 0x65, 0x72, 0x65, 0x20, 0x61, 0x73, 0x73, - 0x69, 0x67, 0x6e, 0x65, 0x64, 0x2e, 0x00, 0x17, - 0x00, 0x10, 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, - 0xbe, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x01, 0x00, 0x18, 0x00, 0x0b, 0x03, 0x6c, - 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, 0x72, 0x61, - 0x00, 0x00, 0x1f, 0x00, 0x10, 0x20, 0x01, 0x0d, - 0xb8, 0xde, 0xad, 0xbe, 0xef, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x01 -}; - -static int test_advertise_option(sd_event *e) { - _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL; - DHCP6Message *advertise = (DHCP6Message *)msg_advertise; - uint8_t *optval, *opt = msg_advertise + sizeof(DHCP6Message); - uint16_t optcode; - size_t optlen, len = sizeof(msg_advertise) - sizeof(DHCP6Message); - be32_t val; - uint8_t preference = 255; - struct in6_addr addr; - uint32_t lt_pref, lt_valid; - int r; - bool opt_clientid = false; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(dhcp6_lease_new(&lease) >= 0); - - assert_se(advertise->type == DHCP6_ADVERTISE); - assert_se((be32toh(advertise->transaction_id) & 0x00ffffff) == - 0x0fb4e5); - - while ((r = dhcp6_option_parse(&opt, &len, &optcode, &optlen, - &optval)) >= 0) { - - switch(optcode) { - case DHCP6_OPTION_CLIENTID: - assert_se(optlen == 14); - - opt_clientid = true; - break; - - case DHCP6_OPTION_IA_NA: - assert_se(optlen == 94); - assert_se(!memcmp(optval, &msg_advertise[26], optlen)); - - val = htobe32(0x0ecfa37d); - assert_se(!memcmp(optval, &val, sizeof(val))); - - val = htobe32(80); - assert_se(!memcmp(optval + 4, &val, sizeof(val))); - - val = htobe32(120); - assert_se(!memcmp(optval + 8, &val, sizeof(val))); - - assert_se(dhcp6_option_parse_ia(&optval, &optlen, - optcode, - &lease->ia) >= 0); - - break; - - case DHCP6_OPTION_SERVERID: - assert_se(optlen == 14); - assert_se(!memcmp(optval, &msg_advertise[179], optlen)); - - assert_se(dhcp6_lease_set_serverid(lease, optval, - optlen) >= 0); - break; - - case DHCP6_OPTION_PREFERENCE: - assert_se(optlen == 1); - assert_se(!*optval); - - assert_se(dhcp6_lease_set_preference(lease, - *optval) >= 0); - break; - - case DHCP6_OPTION_ELAPSED_TIME: - assert_se(optlen == 2); - - break; - - default: - break; - } - } - - - assert_se(r == -ENOMSG); - - assert_se(opt_clientid); - - sd_dhcp6_lease_reset_address_iter(lease); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) >= 0); - assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr))); - assert_se(lt_pref == 150); - assert_se(lt_valid == 180); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) == -ENOMSG); - - sd_dhcp6_lease_reset_address_iter(lease); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) >= 0); - assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr))); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) == -ENOMSG); - sd_dhcp6_lease_reset_address_iter(lease); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) >= 0); - assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr))); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) == -ENOMSG); - - assert_se(dhcp6_lease_get_serverid(lease, &opt, &len) >= 0); - assert_se(len == 14); - assert_se(!memcmp(opt, &msg_advertise[179], len)); - - assert_se(dhcp6_lease_get_preference(lease, &preference) >= 0); - assert_se(preference == 0); - - return 0; -} - -static int test_hangcheck(sd_event_source *s, uint64_t usec, void *userdata) { - assert_not_reached("Test case should have completed in 2 seconds"); - - return 0; -} - -int detect_vm(const char **id) { - return 1; -} - -int detect_container(const char **id) { - return 1; -} - -int detect_virtualization(const char **id) { - return 1; -} - -static void test_client_solicit_cb(sd_dhcp6_client *client, int event, - void *userdata) { - sd_event *e = userdata; - - assert_se(e); - assert_se(event == DHCP6_EVENT_IP_ACQUIRE); - - assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_DNS_SERVERS) == -EBUSY); - - if (verbose) - printf(" got DHCPv6 event %d\n", event); - - sd_event_exit(e, 0); -} - -static int test_client_send_reply(DHCP6Message *request) { - DHCP6Message reply; - - reply.transaction_id = request->transaction_id; - reply.type = DHCP6_REPLY; - - memcpy(msg_reply, &reply.transaction_id, 4); - - memcpy(&msg_reply[26], test_duid, sizeof(test_duid)); - - memcpy(&msg_reply[44], &test_iaid, sizeof(test_iaid)); - - assert_se(write(test_dhcp_fd[1], msg_reply, sizeof(msg_reply)) - == sizeof(msg_reply)); - - return 0; -} - -static int test_client_verify_request(DHCP6Message *request, uint8_t *option, - size_t len) { - _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL; - uint8_t *optval; - uint16_t optcode; - size_t optlen; - bool found_clientid = false, found_iana = false, found_serverid = false, - found_elapsed_time = false; - int r; - struct in6_addr addr; - be32_t val; - uint32_t lt_pref, lt_valid; - - assert_se(request->type == DHCP6_REQUEST); - - assert_se(dhcp6_lease_new(&lease) >= 0); - - while ((r = dhcp6_option_parse(&option, &len, - &optcode, &optlen, &optval)) >= 0) { - switch(optcode) { - case DHCP6_OPTION_CLIENTID: - assert_se(!found_clientid); - found_clientid = true; - - assert_se(!memcmp(optval, &test_duid, - sizeof(test_duid))); - - break; - - case DHCP6_OPTION_IA_NA: - assert_se(!found_iana); - found_iana = true; - - - assert_se(optlen == 40); - assert_se(!memcmp(optval, &test_iaid, sizeof(test_iaid))); - - val = htobe32(80); - assert_se(!memcmp(optval + 4, &val, sizeof(val))); - - val = htobe32(120); - assert_se(!memcmp(optval + 8, &val, sizeof(val))); - - assert_se(!dhcp6_option_parse_ia(&optval, &optlen, - optcode, &lease->ia)); - - break; - - case DHCP6_OPTION_SERVERID: - assert_se(!found_serverid); - found_serverid = true; - - assert_se(optlen == 14); - assert_se(!memcmp(&msg_advertise[179], optval, optlen)); - - break; - - case DHCP6_OPTION_ELAPSED_TIME: - assert_se(!found_elapsed_time); - found_elapsed_time = true; - - assert_se(optlen == 2); - - break; - } - } - - assert_se(r == -ENOMSG); - assert_se(found_clientid && found_iana && found_serverid && - found_elapsed_time); - - sd_dhcp6_lease_reset_address_iter(lease); - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) >= 0); - assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr))); - assert_se(lt_pref == 150); - assert_se(lt_valid == 180); - - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) == -ENOMSG); - - return 0; -} - -static int test_client_send_advertise(DHCP6Message *solicit) -{ - DHCP6Message advertise; - - advertise.transaction_id = solicit->transaction_id; - advertise.type = DHCP6_ADVERTISE; - - memcpy(msg_advertise, &advertise.transaction_id, 4); - - memcpy(&msg_advertise[8], test_duid, sizeof(test_duid)); - - memcpy(&msg_advertise[26], &test_iaid, sizeof(test_iaid)); - - assert_se(write(test_dhcp_fd[1], msg_advertise, sizeof(msg_advertise)) - == sizeof(msg_advertise)); - - return 0; -} - -static int test_client_verify_solicit(DHCP6Message *solicit, uint8_t *option, - size_t len) { - uint8_t *optval; - uint16_t optcode; - size_t optlen; - bool found_clientid = false, found_iana = false, - found_elapsed_time = false; - int r; - - assert_se(solicit->type == DHCP6_SOLICIT); - - while ((r = dhcp6_option_parse(&option, &len, - &optcode, &optlen, &optval)) >= 0) { - switch(optcode) { - case DHCP6_OPTION_CLIENTID: - assert_se(!found_clientid); - found_clientid = true; - - assert_se(optlen == sizeof(test_duid)); - memcpy(&test_duid, optval, sizeof(test_duid)); - - break; - - case DHCP6_OPTION_IA_NA: - assert_se(!found_iana); - found_iana = true; - - assert_se(optlen == 12); - - memcpy(&test_iaid, optval, sizeof(test_iaid)); - - break; - - case DHCP6_OPTION_ELAPSED_TIME: - assert_se(!found_elapsed_time); - found_elapsed_time = true; - - assert_se(optlen == 2); - - break; - } - } - - assert_se(r == -ENOMSG); - assert_se(found_clientid && found_iana && found_elapsed_time); - - return 0; -} - -static void test_client_information_cb(sd_dhcp6_client *client, int event, - void *userdata) { - sd_event *e = userdata; - - assert_se(e); - assert_se(event == DHCP6_EVENT_INFORMATION_REQUEST); - - if (verbose) - printf(" got DHCPv6 event %d\n", event); - - assert_se(sd_dhcp6_client_set_information_request(client, false) >= 0); - assert_se(sd_dhcp6_client_set_callback(client, - test_client_solicit_cb, e) >= 0); - - assert_se(sd_dhcp6_client_start(client) >= 0); -} - -static int test_client_verify_information_request(DHCP6Message *information_request, - uint8_t *option, size_t len) { - - _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL; - uint8_t *optval; - uint16_t optcode; - size_t optlen; - bool found_clientid = false, found_elapsed_time = false; - int r; - struct in6_addr addr; - uint32_t lt_pref, lt_valid; - - assert_se(information_request->type == DHCP6_INFORMATION_REQUEST); - - assert_se(dhcp6_lease_new(&lease) >= 0); - - while ((r = dhcp6_option_parse(&option, &len, - &optcode, &optlen, &optval)) >= 0) { - switch(optcode) { - case DHCP6_OPTION_CLIENTID: - assert_se(!found_clientid); - found_clientid = true; - - assert_se(optlen == sizeof(test_duid)); - memcpy(&test_duid, optval, sizeof(test_duid)); - - break; - - case DHCP6_OPTION_IA_NA: - assert_not_reached("IA TA option must not be present"); - - break; - - case DHCP6_OPTION_SERVERID: - assert_not_reached("Server ID option must not be present"); - - break; - - case DHCP6_OPTION_ELAPSED_TIME: - assert_se(!found_elapsed_time); - found_elapsed_time = true; - - assert_se(optlen == 2); - - break; - } - } - - assert_se(r == -ENOMSG); - assert_se(found_clientid && found_elapsed_time); - - sd_dhcp6_lease_reset_address_iter(lease); - - assert_se(sd_dhcp6_lease_get_address(lease, &addr, <_pref, - <_valid) == -ENOMSG); - - return 0; -} - -int dhcp6_network_send_udp_socket(int s, struct in6_addr *server_address, - const void *packet, size_t len) { - struct in6_addr mcast = - IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT; - DHCP6Message *message; - uint8_t *option; - - assert_se(s == test_dhcp_fd[0]); - assert_se(server_address); - assert_se(packet); - assert_se(len > sizeof(DHCP6Message) + 4); - - assert_se(IN6_ARE_ADDR_EQUAL(server_address, &mcast)); - - message = (DHCP6Message *)packet; - option = (uint8_t *)(message + 1); - len -= sizeof(DHCP6Message); - - assert_se(message->transaction_id & 0x00ffffff); - - if (test_client_message_num == 0) { - test_client_verify_information_request(message, option, len); - test_client_send_reply(message); - test_client_message_num++; - } else if (test_client_message_num == 1) { - test_client_verify_solicit(message, option, len); - test_client_send_advertise(message); - test_client_message_num++; - } else if (test_client_message_num == 2) { - test_client_verify_request(message, option, len); - test_client_send_reply(message); - test_client_message_num++; - } - - return len; -} - -int dhcp6_network_bind_udp_socket(int index, struct in6_addr *local_address) { - assert_se(index == test_index); - - if (socketpair(AF_UNIX, SOCK_STREAM, 0, test_dhcp_fd) < 0) - return -errno; - - return test_dhcp_fd[0]; -} - -static int test_client_solicit(sd_event *e) { - sd_dhcp6_client *client; - usec_t time_now = now(clock_boottime_or_monotonic()); - bool val = true; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(sd_dhcp6_client_new(&client) >= 0); - assert_se(client); - - assert_se(sd_dhcp6_client_attach_event(client, e, 0) >= 0); - - assert_se(sd_dhcp6_client_set_index(client, test_index) == 0); - assert_se(sd_dhcp6_client_set_mac(client, (const uint8_t *) &mac_addr, - sizeof (mac_addr), - ARPHRD_ETHER) >= 0); - - assert_se(sd_dhcp6_client_get_information_request(client, &val) >= 0); - assert_se(val == false); - assert_se(sd_dhcp6_client_set_information_request(client, true) >= 0); - assert_se(sd_dhcp6_client_get_information_request(client, &val) >= 0); - assert_se(val == true); - - assert_se(sd_dhcp6_client_set_callback(client, - test_client_information_cb, e) >= 0); - - assert_se(sd_event_add_time(e, &hangcheck, clock_boottime_or_monotonic(), - time_now + 2 * USEC_PER_SEC, 0, - test_hangcheck, NULL) >= 0); - - assert_se(sd_dhcp6_client_start(client) >= 0); - - sd_event_loop(e); - - hangcheck = sd_event_source_unref(hangcheck); - - assert_se(!sd_dhcp6_client_unref(client)); - - test_dhcp_fd[1] = safe_close(test_dhcp_fd[1]); - - return 0; -} - -int main(int argc, char *argv[]) { - _cleanup_event_unref_ sd_event *e; - - assert_se(sd_event_new(&e) >= 0); - - log_set_max_level(LOG_DEBUG); - log_parse_environment(); - log_open(); - - test_client_basic(e); - test_option(e); - test_advertise_option(e); - test_client_solicit(e); - - assert_se(!sd_event_unref(e)); - - return 0; -} diff --git a/src/libsystemd-network/test-icmp6-rs.c b/src/libsystemd-network/test-icmp6-rs.c deleted file mode 100644 index 8ba21106a7..0000000000 --- a/src/libsystemd-network/test-icmp6-rs.c +++ /dev/null @@ -1,357 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Intel Corporation. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/icmp6.h> - -#include "socket-util.h" - -#include "dhcp6-internal.h" -#include "sd-icmp6-nd.h" - -static struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'} -}; - -static bool verbose = false; -static sd_event_source *test_hangcheck; -static int test_fd[2]; - -typedef int (*send_ra_t)(uint8_t flags); -static send_ra_t send_ra_function; - -static int test_rs_hangcheck(sd_event_source *s, uint64_t usec, - void *userdata) { - assert_se(false); - - return 0; -} - -int dhcp_network_icmp6_bind_router_solicitation(int index) { - assert_se(index == 42); - - if (socketpair(AF_UNIX, SOCK_DGRAM, 0, test_fd) < 0) - return -errno; - - return test_fd[0]; -} - -static int send_ra_short_prefix(uint8_t flags) { - uint8_t advertisement[] = { - 0x86, 0x00, 0xbe, 0xd7, 0x40, 0xc0, 0x00, 0xb4, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - - 0x03, 0x04, 0x34, 0xc0, 0x00, 0x00, 0x01, 0xf4, - 0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00, - 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 - }; - - assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) == - sizeof(advertisement)); - - return 0; -} - -static void test_short_prefix_cb(sd_icmp6_nd *nd, int event, void *userdata) { - sd_event *e = userdata; - struct { - struct in6_addr addr; - uint8_t prefixlen; - bool success; - } addrs[] = { - { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 52, true }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 64, false }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 60, true }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 64, true }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xed, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } }, - 52, true }, - }; - uint8_t prefixlen; - unsigned int i; - - for (i = 0; i < ELEMENTSOF(addrs); i++) { - printf(" %s prefix %02x%02x:%02x%02x:%02x%02x:%02x%02x", - __FUNCTION__, - addrs[i].addr.s6_addr[0], addrs[i].addr.s6_addr[1], - addrs[i].addr.s6_addr[2], addrs[i].addr.s6_addr[3], - addrs[i].addr.s6_addr[4], addrs[i].addr.s6_addr[5], - addrs[i].addr.s6_addr[6], addrs[i].addr.s6_addr[7]); - - if (addrs[i].success) { - assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr, - &prefixlen) >= 0); - assert_se(addrs[i].prefixlen == prefixlen); - printf("/%d onlink\n", prefixlen); - } else { - assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr, - &prefixlen) == -EADDRNOTAVAIL); - printf("/128 offlink\n"); - } - } - - sd_event_exit(e, 0); -} - -static int send_ra_prefixes(uint8_t flags) { - uint8_t advertisement[] = { - 0x86, 0x00, 0xbe, 0xd7, 0x40, 0xc0, 0x00, 0xb4, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x04, 0x3f, 0xc0, 0x00, 0x00, 0x01, 0xf4, - 0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00, - 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x04, 0x40, 0x00, 0x00, 0x00, 0x02, 0x58, - 0x00, 0x00, 0x02, 0x1c, 0x00, 0x00, 0x00, 0x00, - 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x04, 0x3c, 0x80, 0x00, 0x00, 0x03, 0x84, - 0x00, 0x00, 0x03, 0x20, 0x00, 0x00, 0x00, 0x00, - 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x03, 0x84, - 0x00, 0x00, 0x03, 0x20, 0x00, 0x00, 0x00, 0x00, - 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, - 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, - 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, - 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53 - }; - - assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) == - sizeof(advertisement)); - - return 0; -} - -static void test_prefixes_cb(sd_icmp6_nd *nd, int event, void *userdata) { - sd_event *e = userdata; - struct { - struct in6_addr addr; - uint8_t prefixlen; - bool success; - } addrs[] = { - { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 63, true }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 64, false }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 60, true }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, - 64, true }, - { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xed, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } }, - 63, false }, - }; - uint8_t prefixlen; - unsigned int i; - - for (i = 0; i < ELEMENTSOF(addrs); i++) { - printf(" %s prefix %02x%02x:%02x%02x:%02x%02x:%02x%02x", - __FUNCTION__, - addrs[i].addr.s6_addr[0], addrs[i].addr.s6_addr[1], - addrs[i].addr.s6_addr[2], addrs[i].addr.s6_addr[3], - addrs[i].addr.s6_addr[4], addrs[i].addr.s6_addr[5], - addrs[i].addr.s6_addr[6], addrs[i].addr.s6_addr[7]); - - if (addrs[i].success) { - assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr, - &prefixlen) >= 0); - assert_se(addrs[i].prefixlen == prefixlen); - printf("/%d onlink\n", prefixlen); - } else { - assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr, - &prefixlen) == -EADDRNOTAVAIL); - printf("/128 offlink\n"); - } - } - - send_ra_function = send_ra_short_prefix; - assert_se(sd_icmp6_nd_set_callback(nd, test_short_prefix_cb, e) >= 0); - assert_se(sd_icmp6_nd_stop(nd) >= 0); - assert_se(sd_icmp6_router_solicitation_start(nd) >= 0); -} - -static void test_prefixes(void) { - sd_event *e; - sd_icmp6_nd *nd; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - send_ra_function = send_ra_prefixes; - - assert_se(sd_event_new(&e) >= 0); - - assert_se(sd_icmp6_nd_new(&nd) >= 0); - assert_se(nd); - - assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0); - - assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0); - assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0); - assert_se(sd_icmp6_nd_set_callback(nd, test_prefixes_cb, e) >= 0); - - assert_se(sd_icmp6_router_solicitation_start(nd) >= 0); - - sd_event_loop(e); - - nd = sd_icmp6_nd_unref(nd); - assert_se(!nd); - - close(test_fd[1]); - - sd_event_unref(e); -} - -static int send_ra(uint8_t flags) { - uint8_t advertisement[] = { - 0x86, 0x00, 0xde, 0x83, 0x40, 0xc0, 0x00, 0xb4, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x01, 0xf4, - 0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00, - 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, - 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, - 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, - 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53, - }; - - advertisement[5] = flags; - - assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) == - sizeof(advertisement)); - - if (verbose) - printf(" sent RA with flag 0x%02x\n", flags); - - return 0; -} - -int dhcp_network_icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) { - return send_ra_function(0); -} - -static void test_rs_done(sd_icmp6_nd *nd, int event, void *userdata) { - sd_event *e = userdata; - static int idx = 0; - struct { - uint8_t flag; - int event; - } flag_event[] = { - { 0, ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE }, - { ND_RA_FLAG_OTHER, ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER }, - { ND_RA_FLAG_MANAGED, ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED } - }; - uint32_t mtu; - - assert_se(nd); - - assert_se(event == flag_event[idx].event); - idx++; - - if (verbose) - printf(" got event %d\n", event); - - if (idx < 3) { - send_ra(flag_event[idx].flag); - return; - } - - assert_se(sd_icmp6_ra_get_mtu(nd, &mtu) == -ENOMSG); - - sd_event_exit(e, 0); -} - -static void test_rs(void) { - sd_event *e; - sd_icmp6_nd *nd; - usec_t time_now = now(clock_boottime_or_monotonic()); - - if (verbose) - printf("* %s\n", __FUNCTION__); - - send_ra_function = send_ra; - - assert_se(sd_event_new(&e) >= 0); - - assert_se(sd_icmp6_nd_new(&nd) >= 0); - assert_se(nd); - - assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0); - - assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0); - assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0); - assert_se(sd_icmp6_nd_set_callback(nd, test_rs_done, e) >= 0); - - assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(), - time_now + 2 *USEC_PER_SEC, 0, - test_rs_hangcheck, NULL) >= 0); - - assert_se(sd_icmp6_nd_stop(nd) >= 0); - assert_se(sd_icmp6_router_solicitation_start(nd) >= 0); - assert_se(sd_icmp6_nd_stop(nd) >= 0); - - assert_se(sd_icmp6_router_solicitation_start(nd) >= 0); - - sd_event_loop(e); - - test_hangcheck = sd_event_source_unref(test_hangcheck); - - nd = sd_icmp6_nd_unref(nd); - assert_se(!nd); - - close(test_fd[1]); - - sd_event_unref(e); -} - -int main(int argc, char *argv[]) { - - log_set_max_level(LOG_DEBUG); - log_parse_environment(); - log_open(); - - test_rs(); - test_prefixes(); - - return 0; -} diff --git a/src/libsystemd-network/test-ipv4ll.c b/src/libsystemd-network/test-ipv4ll.c deleted file mode 100644 index 459d5c324d..0000000000 --- a/src/libsystemd-network/test-ipv4ll.c +++ /dev/null @@ -1,225 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ -/*** - This file is part of systemd. - - Copyright (C) 2014 Axis Communications AB. All rights reserved. - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <assert.h> -#include <errno.h> -#include <stdio.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <unistd.h> - -#include "util.h" -#include "socket-util.h" - -#include "sd-ipv4ll.h" -#include "ipv4ll-internal.h" - -static bool verbose = false; -static bool extended = false; -static int test_fd[2]; - -static int basic_request_handler_bind = 0; -static int basic_request_handler_stop = 0; -static void* basic_request_handler_user_data = (void*)0xCABCAB; -static void basic_request_handler(sd_ipv4ll *ll, int event, void *userdata) { - assert_se(userdata == basic_request_handler_user_data); - - switch(event) { - case IPV4LL_EVENT_STOP: - basic_request_handler_stop = 1; - break; - case IPV4LL_EVENT_BIND: - basic_request_handler_bind = 1; - break; - default: - assert_se(0); - break; - } -} - -int arp_network_send_raw_socket(int fd, const union sockaddr_union *link, - const struct ether_arp *arp) { - assert_se(arp); - assert_se(link); - assert_se(fd >= 0); - - if (send(fd, arp, sizeof(struct ether_arp), 0) < 0) - return -errno; - - return 0; -} - -int arp_network_bind_raw_socket(int index, union sockaddr_union *link) { - if (socketpair(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0, test_fd) < 0) - return -errno; - - return test_fd[0]; -} - -static void test_arp_header(struct ether_arp *arp) { - assert_se(arp); - assert_se(arp->ea_hdr.ar_hrd == htons(ARPHRD_ETHER)); /* HTYPE */ - assert_se(arp->ea_hdr.ar_pro == htons(ETHERTYPE_IP)); /* PTYPE */ - assert_se(arp->ea_hdr.ar_hln == ETH_ALEN); /* HLEN */ - assert_se(arp->ea_hdr.ar_pln == sizeof arp->arp_spa); /* PLEN */ - assert_se(arp->ea_hdr.ar_op == htons(ARPOP_REQUEST)); /* REQUEST */ -} - -static void test_arp_probe(void) { - struct ether_arp arp; - struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}}; - be32_t pa = 0x3030; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - arp_packet_probe(&arp, pa, &mac_addr); - test_arp_header(&arp); - assert_se(memcmp(arp.arp_sha, &mac_addr, ETH_ALEN) == 0); - assert_se(memcmp(arp.arp_tpa, &pa, sizeof(pa)) == 0); -} - -static void test_arp_announce(void) { - struct ether_arp arp; - struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}}; - be32_t pa = 0x3131; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - arp_packet_announcement(&arp, pa, &mac_addr); - test_arp_header(&arp); - assert_se(memcmp(arp.arp_sha, &mac_addr, ETH_ALEN) == 0); - assert_se(memcmp(arp.arp_tpa, &pa, sizeof(pa)) == 0); - assert_se(memcmp(arp.arp_spa, &pa, sizeof(pa)) == 0); -} - -static void test_public_api_setters(sd_event *e) { - uint8_t seed[8]; - sd_ipv4ll *ll; - struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}}; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(sd_ipv4ll_new(&ll) == 0); - assert_se(ll); - - assert_se(sd_ipv4ll_attach_event(NULL, NULL, 0) == -EINVAL); - assert_se(sd_ipv4ll_attach_event(ll, e, 0) == 0); - assert_se(sd_ipv4ll_attach_event(ll, e, 0) == -EBUSY); - - assert_se(sd_ipv4ll_set_callback(NULL, NULL, NULL) == -EINVAL); - assert_se(sd_ipv4ll_set_callback(ll, NULL, NULL) == 0); - - assert_se(sd_ipv4ll_set_address_seed(NULL, NULL) == -EINVAL); - assert_se(sd_ipv4ll_set_address_seed(ll, NULL) == -EINVAL); - assert_se(sd_ipv4ll_set_address_seed(ll, seed) == 0); - - assert_se(sd_ipv4ll_set_mac(NULL, NULL) == -EINVAL); - assert_se(sd_ipv4ll_set_mac(ll, NULL) == -EINVAL); - assert_se(sd_ipv4ll_set_mac(ll, &mac_addr) == 0); - - assert_se(sd_ipv4ll_set_index(NULL, -1) == -EINVAL); - assert_se(sd_ipv4ll_set_index(ll, -1) == -EINVAL); - assert_se(sd_ipv4ll_set_index(ll, -99) == -EINVAL); - assert_se(sd_ipv4ll_set_index(ll, 1) == 0); - assert_se(sd_ipv4ll_set_index(ll, 99) == 0); - - assert_se(sd_ipv4ll_ref(ll) == ll); - assert_se(sd_ipv4ll_unref(ll) == ll); - - /* Cleanup */ - assert_se(sd_ipv4ll_unref(ll) == NULL); -} - -static void test_basic_request(sd_event *e) { - - sd_ipv4ll *ll; - struct ether_arp arp; - struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}}; - - if (verbose) - printf("* %s\n", __FUNCTION__); - - assert_se(sd_ipv4ll_new(&ll) == 0); - assert_se(sd_ipv4ll_start(ll) == -EINVAL); - - assert_se(sd_ipv4ll_attach_event(ll, e, 0) == 0); - assert_se(sd_ipv4ll_start(ll) == -EINVAL); - - assert_se(sd_ipv4ll_set_mac(ll, &mac_addr) == 0); - assert_se(sd_ipv4ll_start(ll) == -EINVAL); - - assert_se(sd_ipv4ll_set_callback(ll, basic_request_handler, - basic_request_handler_user_data) == 0); - assert_se(sd_ipv4ll_start(ll) == -EINVAL); - - assert_se(sd_ipv4ll_set_index(ll, 1) == 0); - assert_se(sd_ipv4ll_start(ll) == 0); - - sd_event_run(e, (uint64_t) -1); - assert_se(sd_ipv4ll_start(ll) == -EBUSY); - - /* PROBE */ - sd_event_run(e, (uint64_t) -1); - assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp)); - test_arp_header(&arp); - - if (extended) { - /* PROBE */ - sd_event_run(e, (uint64_t) -1); - assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp)); - test_arp_header(&arp); - - /* PROBE */ - sd_event_run(e, (uint64_t) -1); - assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp)); - test_arp_header(&arp); - - sd_event_run(e, (uint64_t) -1); - assert_se(basic_request_handler_bind == 1); - } - - sd_ipv4ll_stop(ll); - assert_se(basic_request_handler_stop == 1); - - /* Cleanup */ - assert_se(sd_ipv4ll_unref(ll) == NULL); - safe_close(test_fd[1]); -} - -int main(int argc, char *argv[]) { - sd_event *e; - - assert_se(sd_event_new(&e) >= 0); - - test_public_api_setters(e); - test_arp_probe(); - test_arp_announce(); - test_basic_request(e); - - return 0; -} diff --git a/src/libsystemd-network/test-lldp.c b/src/libsystemd-network/test-lldp.c deleted file mode 100644 index 06545aee59..0000000000 --- a/src/libsystemd-network/test-lldp.c +++ /dev/null @@ -1,231 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Susant Sahani - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> -#include <string.h> -#include <net/ethernet.h> -#include <arpa/inet.h> - -#include "macro.h" -#include "lldp.h" -#include "lldp-tlv.h" - -#define TEST_LLDP_PORT "em1" -#define TEST_LLDP_TYPE_SYSTEM_NAME "systemd-lldp" -#define TEST_LLDP_TYPE_SYSTEM_DESC "systemd-lldp-desc" - -static struct ether_addr mac_addr = { - .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'} -}; - -static int lldp_build_tlv_packet(tlv_packet **ret) { - _cleanup_tlv_packet_free_ tlv_packet *m = NULL; - const uint8_t lldp_dst[] = LLDP_MULTICAST_ADDR; - struct ether_header ether = { - .ether_type = htons(ETHERTYPE_LLDP), - }; - - /* Append ethernet header */ - memcpy(ðer.ether_dhost, lldp_dst, ETHER_ADDR_LEN); - memcpy(ðer.ether_shost, &mac_addr, ETHER_ADDR_LEN); - - assert_se(tlv_packet_new(&m) >= 0); - - assert_se(tlv_packet_append_bytes(m, ðer, sizeof(struct ether_header)) >= 0); - - assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_CHASSIS_ID) >= 0); - - assert_se(tlv_packet_append_u8(m, LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS) >= 0); - assert_se(tlv_packet_append_bytes(m, &mac_addr, ETHER_ADDR_LEN) >= 0); - - assert_se(lldp_tlv_packet_close_container(m) >= 0); - - /* port name */ - assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_PORT_ID) >= 0); - - assert_se(tlv_packet_append_u8(m, LLDP_PORT_SUBTYPE_INTERFACE_NAME) >= 0); - assert_se(tlv_packet_append_bytes(m, TEST_LLDP_PORT, strlen(TEST_LLDP_PORT) + 1) >= 0); - - assert_se(lldp_tlv_packet_close_container(m) >= 0); - - /* ttl */ - assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_TTL) >= 0); - - assert_se(tlv_packet_append_u16(m, 170) >= 0); - - assert_se(lldp_tlv_packet_close_container(m) >= 0); - - /* system name */ - assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_SYSTEM_NAME) >= 0); - - assert_se(tlv_packet_append_bytes(m, TEST_LLDP_TYPE_SYSTEM_NAME, - strlen(TEST_LLDP_TYPE_SYSTEM_NAME)) >= 0); - assert_se(lldp_tlv_packet_close_container(m) >= 0); - - /* system descrition */ - assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_SYSTEM_DESCRIPTION) >= 0); - - assert_se(tlv_packet_append_bytes(m, TEST_LLDP_TYPE_SYSTEM_DESC, - strlen(TEST_LLDP_TYPE_SYSTEM_DESC)) >= 0); - - assert_se(lldp_tlv_packet_close_container(m) >= 0); - - /* Mark end of packet */ - assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_END) >= 0); - assert_se(lldp_tlv_packet_close_container(m) >= 0); - - *ret = m; - - m = NULL; - - return 0; -} - -static int lldp_parse_chassis_tlv(tlv_packet *m, uint8_t *type) { - uint8_t *p, subtype; - uint16_t length; - - assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_CHASSIS_ID) >= 0); - assert_se(tlv_packet_read_u8(m, &subtype) >= 0); - - switch (subtype) { - case LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS: - - *type = LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS; - assert_se(tlv_packet_read_bytes(m, &p, &length) >= 0); - - assert_se(memcmp(p, &mac_addr.ether_addr_octet, ETHER_ADDR_LEN) == 0); - - break; - default: - assert_not_reached("Unhandled option"); - } - - assert_se(lldp_tlv_packet_exit_container(m) >= 0); - - return 0; -} - -static int lldp_parse_port_id_tlv(tlv_packet *m) { - _cleanup_free_ char *p = NULL; - char *str = NULL; - uint16_t length; - uint8_t subtype; - - assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_PORT_ID) >= 0); - - assert_se(tlv_packet_read_u8(m, &subtype) >= 0); - - switch (subtype) { - case LLDP_PORT_SUBTYPE_INTERFACE_NAME: - assert_se(tlv_packet_read_string(m, &str, &length) >= 0); - - p = strndup(str, length-1); - assert_se(p); - - assert_se(streq(p, TEST_LLDP_PORT) == 1); - break; - default: - assert_not_reached("Unhandled option"); - } - - assert_se(lldp_tlv_packet_exit_container(m) >= 0); - - return 0; -} - -static int lldp_parse_system_name_tlv(tlv_packet *m) { - _cleanup_free_ char *p = NULL; - char *str = NULL; - uint16_t length; - - assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_SYSTEM_NAME) >= 0); - assert_se(tlv_packet_read_string(m, &str, &length) >= 0); - - p = strndup(str, length); - assert_se(p); - - assert_se(streq(p, TEST_LLDP_TYPE_SYSTEM_NAME) == 1); - - assert_se(lldp_tlv_packet_exit_container(m) >= 0); - - return 1; -} - -static int lldp_parse_system_desc_tlv(tlv_packet *m) { - _cleanup_free_ char *p = NULL; - char *str = NULL; - uint16_t length; - - assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_SYSTEM_DESCRIPTION) >= 0); - assert_se(tlv_packet_read_string(m, &str, &length) >= 0); - - p = strndup(str, length); - assert_se(p); - - assert_se(streq(p, TEST_LLDP_TYPE_SYSTEM_DESC) == 1); - - assert_se(lldp_tlv_packet_exit_container(m) >= 0); - - return 0; -} - -static int lldp_parse_ttl_tlv(tlv_packet *m) { - uint16_t ttl; - - assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_TTL) >= 0); - assert_se(tlv_packet_read_u16(m, &ttl) >= 0); - - assert_se(ttl == 170); - - assert_se(lldp_tlv_packet_exit_container(m) >= 0); - - return 0; -} - -static int lldp_parse_tlv_packet(tlv_packet *m, int len) { - uint8_t subtype; - - assert_se(tlv_packet_parse_pdu(m, len) >= 0); - assert_se(lldp_parse_chassis_tlv(m, &subtype) >= 0); - assert_se(lldp_parse_port_id_tlv(m) >= 0); - assert_se(lldp_parse_system_name_tlv(m) >= 0); - assert_se(lldp_parse_ttl_tlv(m) >= 0); - assert_se(lldp_parse_system_desc_tlv(m) >= 0); - - return 0; -} - -int main(int argc, char *argv[]) { - _cleanup_tlv_packet_free_ tlv_packet *tlv = NULL; - - /* form a packet */ - lldp_build_tlv_packet(&tlv); - - /* parse the packet */ - tlv_packet_parse_pdu(tlv, tlv->length); - - /* verify */ - lldp_parse_tlv_packet(tlv, tlv->length); - - return 0; -} diff --git a/src/libsystemd-network/test-pppoe.c b/src/libsystemd-network/test-pppoe.c deleted file mode 100644 index 40d04fdb21..0000000000 --- a/src/libsystemd-network/test-pppoe.c +++ /dev/null @@ -1,175 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 Tom Gundersen <teg@jklm.no> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdlib.h> -#include <errno.h> -#include <unistd.h> - -#include <linux/veth.h> -#include <net/if.h> - -#include "util.h" -#include "sd-event.h" -#include "event-util.h" -#include "sd-rtnl.h" -#include "sd-pppoe.h" - -static void pppoe_handler(sd_pppoe *ppp, int event, void *userdata) { - static int pppoe_state = -1; - sd_event *e = userdata; - - assert_se(ppp); - assert_se(e); - - switch (event) { - case PPPOE_EVENT_RUNNING: - assert_se(pppoe_state == -1); - log_info("running"); - break; - case PPPOE_EVENT_STOPPED: - assert_se(pppoe_state == PPPOE_EVENT_RUNNING); - log_info("stopped"); - assert_se(sd_event_exit(e, 0) >= 0); - break; - default: - assert_not_reached("invalid pppoe event"); - } - - pppoe_state = event; -} - -static int client_run(const char *client_name, sd_event *e) { - sd_pppoe *pppoe; - int client_ifindex; - - client_ifindex = (int) if_nametoindex(client_name); - assert_se(client_ifindex > 0); - - assert_se(sd_pppoe_new(&pppoe) >= 0); - assert_se(sd_pppoe_attach_event(pppoe, e, 0) >= 0); - - assert_se(sd_pppoe_set_ifname(pppoe, "pppoe-client") >= 0); - assert_se(sd_pppoe_set_ifindex(pppoe, client_ifindex) >= 0); - assert_se(sd_pppoe_set_callback(pppoe, pppoe_handler, e) >= 0); - - log_info("starting PPPoE client, it will exit when the server times out and sends PADT"); - - assert_se(sd_pppoe_start(pppoe) >= 0); - - assert_se(sd_event_loop(e) >= 0); - - assert_se(!sd_pppoe_unref(pppoe)); - - return EXIT_SUCCESS; -} - -static int test_pppoe_server(sd_event *e) { - sd_rtnl *rtnl; - sd_rtnl_message *m; - pid_t pid; - int r, client_ifindex, server_ifindex; - - r = unshare(CLONE_NEWNET); - if (r < 0 && errno == EPERM) - return EXIT_TEST_SKIP; - - assert_se(r >= 0); - - assert_se(sd_rtnl_open(&rtnl, 0) >= 0); - assert_se(sd_rtnl_attach_event(rtnl, e, 0) >= 0); - - assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0); - assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "pppoe-server") >= 0); - assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0); - assert_se(sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "veth") >= 0); - assert_se(sd_rtnl_message_open_container(m, VETH_INFO_PEER) >= 0); - assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "pppoe-client") >= 0); - assert_se(sd_rtnl_message_close_container(m) >= 0); - assert_se(sd_rtnl_message_close_container(m) >= 0); - assert_se(sd_rtnl_message_close_container(m) >= 0); - assert_se(sd_rtnl_call(rtnl, m, 0, NULL) >= 0); - - client_ifindex = (int) if_nametoindex("pppoe-client"); - assert_se(client_ifindex > 0); - server_ifindex = (int) if_nametoindex("pppoe-server"); - assert_se(server_ifindex > 0); - - m = sd_rtnl_message_unref(m); - assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_SETLINK, client_ifindex) >= 0); - assert_se(sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP) >= 0); - assert_se(sd_rtnl_call(rtnl, m, 0, NULL) >= 0); - - m = sd_rtnl_message_unref(m); - assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_SETLINK, server_ifindex) >= 0); - assert_se(sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP) >= 0); - assert_se(sd_rtnl_call(rtnl, m, 0, NULL) >= 0); - - pid = fork(); - assert_se(pid >= 0); - if (pid == 0) { - /* let the client send some discover messages before the server is started */ - sleep(2); - - /* TODO: manage pppoe-server-options */ - execlp("pppoe-server", "pppoe-server", "-F", - "-I", "pppoe-server", - "-C", "Test-AC", - "-S", "Service-Default", - "-S", "Service-First-Auxiliary", - "-S", "Service-Second-Auxiliary", - NULL); - assert_not_reached("failed to execute pppoe-server. not installed?"); - } - - client_run("pppoe-client", e); - - assert_se(kill(pid, SIGTERM) >= 0); - assert_se(wait_for_terminate(pid, NULL) >= 0); - - assert_se(!sd_rtnl_message_unref(m)); - assert_se(!sd_rtnl_unref(rtnl)); - - return EXIT_SUCCESS; -} - -int main(int argc, char *argv[]) { - _cleanup_event_unref_ sd_event *e = NULL; - - log_set_max_level(LOG_DEBUG); - log_parse_environment(); - log_open(); - - assert_se(sd_event_new(&e) >= 0); - - if (argc == 1) { - log_info("running PPPoE client against local server"); - - return test_pppoe_server(e); - } else if (argc == 2) { - log_info("running PPPoE client over '%s'", argv[1]); - - return client_run(argv[1], e); - } else { - log_error("This program takes one or no arguments.\n" - "\t %s [<ifname>]", program_invocation_short_name); - return EXIT_FAILURE; - } -} |