From 5e1f646c67c954fe7d55a747e3ffdd07e20cb46a Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Thu, 15 Sep 2016 01:52:25 -0400 Subject: ./tools/notsd-move --- src/libsystemd-network/dhcp-network.c | 235 ---------------------------------- 1 file changed, 235 deletions(-) delete mode 100644 src/libsystemd-network/dhcp-network.c (limited to 'src/libsystemd-network/dhcp-network.c') diff --git a/src/libsystemd-network/dhcp-network.c b/src/libsystemd-network/dhcp-network.c deleted file mode 100644 index a9f5a0a5de..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 . -***/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "dhcp-internal.h" -#include "fd-util.h" -#include "socket-util.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 = htobe16(ETH_P_IP); - link->ll.sll_ifindex = ifindex; - link->ll.sll_hatype = htobe16(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; -} -- cgit v1.2.3-54-g00ecf