diff options
Diffstat (limited to 'src/network/networkd-dhcp6.c')
| -rw-r--r-- | src/network/networkd-dhcp6.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/network/networkd-dhcp6.c b/src/network/networkd-dhcp6.c new file mode 100644 index 0000000000..bf8d78b6d0 --- /dev/null +++ b/src/network/networkd-dhcp6.c @@ -0,0 +1,165 @@ +/*-*- 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/ether.h> +#include <linux/if.h> + +#include "networkd-link.h" +#include "network-internal.h" + +#include "sd-icmp6-nd.h" +#include "sd-dhcp6-client.h" + +static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) { + Link *link = userdata; + + assert(link); + assert(link->network); + assert(link->manager); + + if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) + return; + + switch(event) { + case DHCP6_EVENT_STOP: + case DHCP6_EVENT_RESEND_EXPIRE: + case DHCP6_EVENT_RETRANS_MAX: + case DHCP6_EVENT_IP_ACQUIRE: + log_link_debug(link, "DHCPv6 event %d", event); + + break; + + default: + if (event < 0) + log_link_warning(link, "DHCPv6 error: %s", + strerror(-event)); + else + log_link_warning(link, "DHCPv6 unknown event: %d", + event); + return; + } +} + +static int dhcp6_configure(Link *link) { + int r; + + assert_return(link, -EINVAL); + + if (link->dhcp6_client) + return 0; + + r = sd_dhcp6_client_new(&link->dhcp6_client); + if (r < 0) + return r; + + r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0); + if (r < 0) { + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + return r; + } + + r = sd_dhcp6_client_set_mac(link->dhcp6_client, + (const uint8_t *) &link->mac, + sizeof (link->mac), ARPHRD_ETHER); + if (r < 0) { + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + return r; + } + + r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex); + if (r < 0) { + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + return r; + } + + r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler, + link); + if (r < 0) { + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + return r; + } + + r = sd_dhcp6_client_start(link->dhcp6_client); + if (r < 0) + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + + return r; +} + +static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) { + Link *link = userdata; + + assert(link); + assert(link->network); + assert(link->manager); + + if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) + return; + + switch(event) { + case ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE: + case ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER: + return; + + case ICMP6_EVENT_ROUTER_ADVERTISMENT_TIMEOUT: + case ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED: + break; + + default: + if (event < 0) + log_link_warning(link, "ICMPv6 error: %s", + strerror(-event)); + else + log_link_warning(link, "ICMPv6 unknown event: %d", + event); + + return; + } + + dhcp6_configure(link); +} + +int icmp6_configure(Link *link) { + int r; + + assert_return(link, -EINVAL); + + r = sd_icmp6_nd_new(&link->icmp6_router_discovery); + if (r < 0) + return r; + + r = sd_icmp6_nd_attach_event(link->icmp6_router_discovery, NULL, 0); + if (r < 0) + return r; + + r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery, &link->mac); + if (r < 0) + return r; + + r = sd_icmp6_nd_set_index(link->icmp6_router_discovery, link->ifindex); + if (r < 0) + return r; + + r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery, + icmp6_router_handler, link); + + return r; +} |