diff options
Diffstat (limited to 'src/network/networkd-vxlan.c')
| -rw-r--r-- | src/network/networkd-vxlan.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/network/networkd-vxlan.c b/src/network/networkd-vxlan.c new file mode 100644 index 0000000000..d6721222f2 --- /dev/null +++ b/src/network/networkd-vxlan.c @@ -0,0 +1,162 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2014 Susant Sahani <susant@redhat.com> + + 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 <arpa/inet.h> +#include <net/if.h> + +#include "sd-rtnl.h" +#include "networkd.h" + + +static int netdev_fill_vxlan_rtnl_message(NetDev *netdev, Link *link, sd_rtnl_message *m) { + int r; + + assert(link); + assert(link->network); + assert(m); + + r = sd_rtnl_message_append_string(m, IFLA_IFNAME, netdev->ifname); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_IFNAME, attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_open_container(m, IFLA_LINKINFO); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_LINKINFO attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, + netdev_kind_to_string(netdev->kind)); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_INFO_DATA attribute: %s", + strerror(-r)); + return r; + } + + if (netdev->vlanid <= VXLAN_VID_MAX) { + r = sd_rtnl_message_append_u32(m, IFLA_VXLAN_ID, netdev->vxlanid); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_VXLAN_ID attribute: %s", + strerror(-r)); + return r; + } + } + + r = sd_rtnl_message_append_in_addr(m, IFLA_VXLAN_GROUP, &netdev->group); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_VXLAN_GROUP attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_VXLAN_LINK attribute: %s", + strerror(-r)); + return r; + } + + if(netdev->ttl) { + r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_TTL, netdev->ttl); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_VXLAN_TTL attribute: %s", + strerror(-r)); + return r; + } + } + + if(netdev->tos) { + r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_TOS, netdev->tos); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_VXLAN_TOS attribute: %s", + strerror(-r)); + return r; + } + } + + r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_LEARNING, netdev->learning); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_VXLAN_LEARNING attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_close_container(m); + if (r < 0) { + log_error_netdev(netdev, + "Could not append IFLA_LINKINFO attribute: %s", + strerror(-r)); + return r; + } + + return r; +} + +int netdev_create_vxlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback) { + _cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL; + int r; + + assert(netdev); + assert(!(netdev->kind == NETDEV_KIND_VXLAN) || (link && callback)); + assert(netdev->ifname); + assert(netdev->manager); + assert(netdev->manager->rtnl); + + r = sd_rtnl_message_new_link(netdev->manager->rtnl, &m, RTM_NEWLINK, 0); + if (r < 0) { + log_error_netdev(netdev, + "Could not allocate RTM_NEWLINK message: %s", + strerror(-r)); + return r; + } + + r = netdev_fill_vxlan_rtnl_message(netdev, link, m); + if(r < 0) + return r; + + r = sd_rtnl_call_async(netdev->manager->rtnl, m, callback, link, 0, NULL); + if (r < 0) { + log_error_netdev(netdev, + "Could not send rtnetlink message: %s", strerror(-r)); + return r; + } + + log_debug_netdev(netdev, "Creating vxlan netdev: %s", + netdev_kind_to_string(netdev->kind)); + + netdev->state = NETDEV_STATE_CREATING; + + return 0; +} |