1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2014 Susant Sahani <susant@redhat.com>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <netinet/ether.h>
23 #include <arpa/inet.h>
31 static int netdev_fill_vxlan_rtnl_message(NetDev *netdev, Link *link, sd_rtnl_message *m) {
35 assert(link->network);
38 r = sd_rtnl_message_append_string(m, IFLA_IFNAME, netdev->ifname);
40 log_error_netdev(netdev,
41 "Could not append IFLA_IFNAME, attribute: %s",
46 r = sd_rtnl_message_open_container(m, IFLA_LINKINFO);
48 log_error_netdev(netdev,
49 "Could not append IFLA_LINKINFO attribute: %s",
54 r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA,
55 netdev_kind_to_string(netdev->kind));
57 log_error_netdev(netdev,
58 "Could not append IFLA_INFO_DATA attribute: %s",
63 if (netdev->vlanid <= VXLAN_VID_MAX) {
64 r = sd_rtnl_message_append_u32(m, IFLA_VXLAN_ID, netdev->vxlanid);
66 log_error_netdev(netdev,
67 "Could not append IFLA_VXLAN_ID attribute: %s",
73 r = sd_rtnl_message_append_in_addr(m, IFLA_VXLAN_GROUP, &netdev->group.in);
75 log_error_netdev(netdev,
76 "Could not append IFLA_VXLAN_GROUP attribute: %s",
81 r = sd_rtnl_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex);
83 log_error_netdev(netdev,
84 "Could not append IFLA_VXLAN_LINK attribute: %s",
90 r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_TTL, netdev->ttl);
92 log_error_netdev(netdev,
93 "Could not append IFLA_VXLAN_TTL attribute: %s",
100 r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_TOS, netdev->tos);
102 log_error_netdev(netdev,
103 "Could not append IFLA_VXLAN_TOS attribute: %s",
109 r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_LEARNING, netdev->learning);
111 log_error_netdev(netdev,
112 "Could not append IFLA_VXLAN_LEARNING attribute: %s",
117 r = sd_rtnl_message_close_container(m);
119 log_error_netdev(netdev,
120 "Could not append IFLA_LINKINFO attribute: %s",
128 int netdev_create_vxlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback) {
129 _cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL;
133 assert(!(netdev->kind == NETDEV_KIND_VXLAN) || (link && callback));
134 assert(netdev->ifname);
135 assert(netdev->manager);
136 assert(netdev->manager->rtnl);
138 r = sd_rtnl_message_new_link(netdev->manager->rtnl, &m, RTM_NEWLINK, 0);
140 log_error_netdev(netdev,
141 "Could not allocate RTM_NEWLINK message: %s",
146 r = netdev_fill_vxlan_rtnl_message(netdev, link, m);
150 r = sd_rtnl_call_async(netdev->manager->rtnl, m, callback, link, 0, NULL);
152 log_error_netdev(netdev,
153 "Could not send rtnetlink message: %s", strerror(-r));
159 log_debug_netdev(netdev, "Creating vxlan netdev: %s",
160 netdev_kind_to_string(netdev->kind));
162 netdev->state = NETDEV_STATE_CREATING;