/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 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/if.h> #include "sd-netlink.h" #include "networkd-netdev-vxlan.h" #include "networkd-link.h" #include "conf-parser.h" #include "missing.h" static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { VxLan *v = VXLAN(netdev); int r; assert(netdev); assert(v); assert(link); assert(m); if (v->id <= VXLAN_VID_MAX) { r = sd_netlink_message_append_u32(m, IFLA_VXLAN_ID, v->id); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_ID attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_GROUP, &v->group.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GROUP attribute: %m"); r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LINK attribute: %m"); if(v->ttl) { r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TTL, v->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TTL attribute: %m"); } if(v->tos) { r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TOS, v->tos); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TOS attribute: %m"); } r = sd_netlink_message_append_u8(m, IFLA_VXLAN_LEARNING, v->learning); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LEARNING attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_VXLAN_RSC, v->route_short_circuit); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_RSC attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_VXLAN_PROXY, v->arp_proxy); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PROXY attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L2MISS, v->l2miss); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L2MISS attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L3MISS, v->l3miss); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L3MISS attribute: %m"); if(v->fdb_ageing) { r = sd_netlink_message_append_u32(m, IFLA_VXLAN_AGEING, v->fdb_ageing / USEC_PER_SEC); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_AGEING attribute: %m"); } r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_CSUM, v->udpcsum); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_CSUM attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_TX attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %m"); if (v->group_policy) { r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GBP attribute: %m"); } return r; } int config_parse_vxlan_group_address(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) { VxLan *v = userdata; union in_addr_union *addr = data, buffer; int r, f; assert(filename); assert(lvalue); assert(rvalue); assert(data); r = in_addr_from_string_auto(rvalue, &f, &buffer); if (r < 0) { log_syntax(unit, LOG_ERR, filename, line, EINVAL, "vxlan multicast group address is invalid, ignoring assignment: %s", rvalue); return 0; } if(v->family != AF_UNSPEC && v->family != f) { log_syntax(unit, LOG_ERR, filename, line, EINVAL, "vxlan multicast group incompatible, ignoring assignment: %s", rvalue); return 0; } v->family = f; *addr = buffer; return 0; } static int netdev_vxlan_verify(NetDev *netdev, const char *filename) { VxLan *v = VXLAN(netdev); assert(netdev); assert(v); assert(filename); if (v->id > VXLAN_VID_MAX) { log_warning("VXLAN without valid Id configured in %s. Ignoring", filename); return -EINVAL; } return 0; } static void vxlan_init(NetDev *netdev) { VxLan *v = VXLAN(netdev); assert(netdev); assert(v); v->id = VXLAN_VID_MAX + 1; v->learning = true; v->udpcsum = false; v->udp6zerocsumtx = false; v->udp6zerocsumrx = false; } const NetDevVTable vxlan_vtable = { .object_size = sizeof(VxLan), .init = vxlan_init, .sections = "Match\0NetDev\0VXLAN\0", .fill_message_create = netdev_vxlan_fill_message_create, .create_type = NETDEV_CREATE_STACKED, .config_verify = netdev_vxlan_verify, };