static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t = SIT(netdev); int r; assert(netdev); assert(m); assert(t); assert(IN_SET(t->family, AF_INET, AF_UNSPEC)); if (link) { r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_PMTUDISC attribute: %m"); return r; }
static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t = VTI(netdev); int r; assert(netdev); assert(m); assert(t); assert(t->family == AF_INET); if (link) { r = sd_netlink_message_append_u32(m, IFLA_VTI_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); } r = netdev_vti_fill_message_key(netdev, link, m); if (r < 0) return r; r = sd_netlink_message_append_in_addr(m, IFLA_VTI_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_VTI_REMOTE, &t->remote.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); return r; }
int routing_policy_rule_remove(RoutingPolicyRule *routing_policy_rule, Link *link, sd_netlink_message_handler_t callback) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; int r; assert(routing_policy_rule); assert(link); assert(link->manager); assert(link->manager->rtnl); assert(link->ifindex > 0); assert(IN_SET(routing_policy_rule->family, AF_INET, AF_INET6)); r = sd_rtnl_message_new_routing_policy_rule(link->manager->rtnl, &m, RTM_DELRULE, routing_policy_rule->family); if (r < 0) return log_error_errno(r, "Could not allocate RTM_DELRULE message: %m"); if (!in_addr_is_null(routing_policy_rule->family, &routing_policy_rule->from)) { if (routing_policy_rule->family == AF_INET) r = sd_netlink_message_append_in_addr(m, FRA_SRC, &routing_policy_rule->from.in); else r = sd_netlink_message_append_in6_addr(m, FRA_SRC, &routing_policy_rule->from.in6); if (r < 0) return log_error_errno(r, "Could not append FRA_SRC attribute: %m"); r = sd_rtnl_message_routing_policy_rule_set_rtm_src_prefixlen(m, routing_policy_rule->from_prefixlen); if (r < 0) return log_error_errno(r, "Could not set source prefix length: %m"); } if (!in_addr_is_null(routing_policy_rule->family, &routing_policy_rule->to)) { if (routing_policy_rule->family == AF_INET) r = sd_netlink_message_append_in_addr(m, FRA_DST, &routing_policy_rule->to.in); else r = sd_netlink_message_append_in6_addr(m, FRA_DST, &routing_policy_rule->to.in6); if (r < 0) return log_error_errno(r, "Could not append FRA_DST attribute: %m"); r = sd_rtnl_message_routing_policy_rule_set_rtm_dst_prefixlen(m, routing_policy_rule->to_prefixlen); if (r < 0) return log_error_errno(r, "Could not set destination prefix length: %m"); } r = sd_netlink_call_async(link->manager->rtnl, m, callback, link, 0, NULL); if (r < 0) return log_error_errno(r, "Could not send rtnetlink message: %m"); link_ref(link); return 0; }
static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t; int r; assert(netdev); if (netdev->kind == NETDEV_KIND_GRE) t = GRE(netdev); else t = GRETAP(netdev); assert(t); assert(IN_SET(t->family, AF_INET, AF_UNSPEC)); assert(m); if (link) { r = sd_netlink_message_append_u32(m, IFLA_GRE_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LINK attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_GRE_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_GRE_REMOTE, &t->remote.in); if (r < 0) log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_REMOTE attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GRE_TTL, t->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TTL attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GRE_TOS, t->tos); if (r < 0) log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TOS attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GRE_PMTUDISC, t->pmtudisc); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_PMTUDISC attribute: %m"); return r; }
static void test_route(sd_netlink *rtnl) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req; struct in_addr addr, addr_data; uint32_t index = 2, u32_data; int r; r = sd_rtnl_message_new_route(rtnl, &req, RTM_NEWROUTE, AF_INET, RTPROT_STATIC); if (r < 0) { log_error_errno(r, "Could not create RTM_NEWROUTE message: %m"); return; } addr.s_addr = htonl(INADDR_LOOPBACK); r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &addr); if (r < 0) { log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); return; } r = sd_netlink_message_append_u32(req, RTA_OIF, index); if (r < 0) { log_error_errno(r, "Could not append RTA_OIF attribute: %m"); return; } assert_se(sd_netlink_message_rewind(req) >= 0); assert_se(sd_netlink_message_read_in_addr(req, RTA_GATEWAY, &addr_data) >= 0); assert_se(addr_data.s_addr == addr.s_addr); assert_se(sd_netlink_message_read_u32(req, RTA_OIF, &u32_data) >= 0); assert_se(u32_data == index); assert_se((req = sd_netlink_message_unref(req)) == NULL); }
int route_drop(Route *route, Link *link, sd_netlink_message_handler_t callback) { _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; int r; assert(link); assert(link->manager); assert(link->manager->rtnl); assert(link->ifindex > 0); assert(route->family == AF_INET || route->family == AF_INET6); r = sd_rtnl_message_new_route(link->manager->rtnl, &req, RTM_DELROUTE, route->family, route->protocol); if (r < 0) return log_error_errno(r, "Could not create RTM_DELROUTE message: %m"); if (!in_addr_is_null(route->family, &route->in_addr)) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->in_addr.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->in_addr.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); } if (route->dst_prefixlen) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst_addr.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst_addr.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_DST attribute: %m"); r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); if (r < 0) return log_error_errno(r, "Could not set destination prefix length: %m"); } if (route->src_prefixlen) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src_addr.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src_addr.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_DST attribute: %m"); r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); if (r < 0) return log_error_errno(r, "Could not set source prefix length: %m"); } if (!in_addr_is_null(route->family, &route->prefsrc_addr)) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc_addr.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc_addr.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); } r = sd_rtnl_message_route_set_scope(req, route->scope); if (r < 0) return log_error_errno(r, "Could not set scope: %m"); r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->metrics); if (r < 0) return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); if (r < 0) return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); if (r < 0) return log_error_errno(r, "Could not send rtnetlink message: %m"); link_ref(link); return 0; }
int routing_policy_rule_configure(RoutingPolicyRule *rule, Link *link, sd_netlink_message_handler_t callback, bool update) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; int r; assert(rule); assert(link); assert(link->ifindex > 0); assert(link->manager); assert(link->manager->rtnl); r = sd_rtnl_message_new_routing_policy_rule(link->manager->rtnl, &m, RTM_NEWRULE, rule->family); if (r < 0) return log_error_errno(r, "Could not allocate RTM_NEWRULE message: %m"); if (!in_addr_is_null(rule->family, &rule->from)) { if (rule->family == AF_INET) r = sd_netlink_message_append_in_addr(m, FRA_SRC, &rule->from.in); else r = sd_netlink_message_append_in6_addr(m, FRA_SRC, &rule->from.in6); if (r < 0) return log_error_errno(r, "Could not append FRA_SRC attribute: %m"); r = sd_rtnl_message_routing_policy_rule_set_rtm_src_prefixlen(m, rule->from_prefixlen); if (r < 0) return log_error_errno(r, "Could not set source prefix length: %m"); } if (!in_addr_is_null(rule->family, &rule->to)) { if (rule->family == AF_INET) r = sd_netlink_message_append_in_addr(m, FRA_DST, &rule->to.in); else r = sd_netlink_message_append_in6_addr(m, FRA_DST, &rule->to.in6); if (r < 0) return log_error_errno(r, "Could not append FRA_DST attribute: %m"); r = sd_rtnl_message_routing_policy_rule_set_rtm_dst_prefixlen(m, rule->to_prefixlen); if (r < 0) return log_error_errno(r, "Could not set destination prefix length: %m"); } r = sd_netlink_message_append_u32(m, FRA_PRIORITY, rule->priority); if (r < 0) return log_error_errno(r, "Could not append FRA_PRIORITY attribute: %m"); if (rule->tos > 0) { r = sd_rtnl_message_routing_policy_rule_set_tos(m, rule->tos); if (r < 0) return log_error_errno(r, "Could not set ip rule tos: %m"); } if (rule->table < 256) { r = sd_rtnl_message_routing_policy_rule_set_table(m, rule->table); if (r < 0) return log_error_errno(r, "Could not set ip rule table: %m"); } else { r = sd_rtnl_message_routing_policy_rule_set_table(m, RT_TABLE_UNSPEC); if (r < 0) return log_error_errno(r, "Could not set ip rule table: %m"); r = sd_netlink_message_append_u32(m, FRA_TABLE, rule->table); if (r < 0) return log_error_errno(r, "Could not append FRA_TABLE attribute: %m"); } if (rule->fwmark > 0) { r = sd_netlink_message_append_u32(m, FRA_FWMARK, rule->fwmark); if (r < 0) return log_error_errno(r, "Could not append FRA_FWMARK attribute: %m"); } if (rule->fwmask > 0) { r = sd_netlink_message_append_u32(m, FRA_FWMASK, rule->fwmask); if (r < 0) return log_error_errno(r, "Could not append FRA_FWMASK attribute: %m"); } if (rule->iif) { r = sd_netlink_message_append_string(m, FRA_IFNAME, rule->iif); if (r < 0) return log_error_errno(r, "Could not append FRA_IFNAME attribute: %m"); } if (rule->oif) { r = sd_netlink_message_append_string(m, FRA_OIFNAME, rule->oif); if (r < 0) return log_error_errno(r, "Could not append FRA_OIFNAME attribute: %m"); } rule->link = link; r = sd_netlink_call_async(link->manager->rtnl, m, callback, link, 0, NULL); if (r < 0) return log_error_errno(r, "Could not send rtnetlink message: %m"); link_ref(link); r = routing_policy_rule_add(link->manager, rule->family, &rule->from, rule->from_prefixlen, &rule->to, rule->to_prefixlen, rule->tos, rule->fwmark, rule->table, rule->iif, rule->oif, NULL); if (r < 0) return log_error_errno(r, "Could not add rule : %m"); return 0; }
static int netdev_geneve_create(NetDev *netdev) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; Geneve *v; int r; assert(netdev); v = GENEVE(netdev); r = sd_rtnl_message_new_link(netdev->manager->rtnl, &m, RTM_NEWLINK, 0); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not allocate RTM_NEWLINK message: %m"); r = sd_netlink_message_append_string(m, IFLA_IFNAME, netdev->ifname); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IFNAME, attribute: %m"); if (netdev->mac) { r = sd_netlink_message_append_ether_addr(m, IFLA_ADDRESS, netdev->mac); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_ADDRESS attribute: %m"); } if (netdev->mtu != 0) { r = sd_netlink_message_append_u32(m, IFLA_MTU, netdev->mtu); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_MTU attribute: %m"); } r = sd_netlink_message_open_container(m, IFLA_LINKINFO); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m"); r = sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m"); if (v->id <= GENEVE_VID_MAX) { r = sd_netlink_message_append_u32(m, IFLA_GENEVE_ID, v->id); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_ID attribute: %m"); } if (in_addr_is_null(v->remote_family, &v->remote) == 0) { if (v->remote_family == AF_INET) r = sd_netlink_message_append_in_addr(m, IFLA_GENEVE_REMOTE, &v->remote.in); else r = sd_netlink_message_append_in6_addr(m, IFLA_GENEVE_REMOTE6, &v->remote.in6); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_REMOTE/IFLA_GENEVE_REMOTE6 attribute: %m"); } if (v->ttl > 0) { r = sd_netlink_message_append_u8(m, IFLA_GENEVE_TTL, v->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_TTL attribute: %m"); } r = sd_netlink_message_append_u8(m, IFLA_GENEVE_TOS, v->tos); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_TOS attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GENEVE_UDP_CSUM, v->udpcsum); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_UDP_CSUM attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_UDP_ZERO_CSUM6_TX attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_UDP_ZERO_CSUM6_RX attribute: %m"); if (v->dest_port != DEFAULT_GENEVE_DESTINATION_PORT) { r = sd_netlink_message_append_u16(m, IFLA_GENEVE_PORT, htobe16(v->dest_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_PORT attribute: %m"); } if (v->flow_label > 0) { r = sd_netlink_message_append_u32(m, IFLA_GENEVE_LABEL, htobe32(v->flow_label)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GENEVE_LABEL attribute: %m"); } r = sd_netlink_message_close_container(m); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m"); r = sd_netlink_message_close_container(m); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m"); r = netlink_call_async(netdev->manager->rtnl, NULL, m, geneve_netdev_create_handler, netdev_destroy_callback, netdev); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m"); netdev_ref(netdev); netdev->state = NETDEV_STATE_CREATING; log_netdev_debug(netdev, "Creating"); return r; }
int route_configure( Route *route, Link *link, sd_netlink_message_handler_t callback) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; _cleanup_(sd_event_source_unrefp) sd_event_source *expire = NULL; usec_t lifetime; int r; assert(link); assert(link->manager); assert(link->manager->rtnl); assert(link->ifindex > 0); assert(route->family == AF_INET || route->family == AF_INET6); if (route_get(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, NULL) <= 0 && set_size(link->routes) >= ROUTES_PER_LINK_MAX) return -E2BIG; r = sd_rtnl_message_new_route(link->manager->rtnl, &req, RTM_NEWROUTE, route->family, route->protocol); if (r < 0) return log_error_errno(r, "Could not create RTM_NEWROUTE message: %m"); if (!in_addr_is_null(route->family, &route->gw)) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); r = sd_rtnl_message_route_set_family(req, route->family); if (r < 0) return log_error_errno(r, "Could not set route family: %m"); } if (route->dst_prefixlen) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_DST attribute: %m"); r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); if (r < 0) return log_error_errno(r, "Could not set destination prefix length: %m"); } if (route->src_prefixlen) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_SRC attribute: %m"); r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); if (r < 0) return log_error_errno(r, "Could not set source prefix length: %m"); } if (!in_addr_is_null(route->family, &route->prefsrc)) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); } r = sd_rtnl_message_route_set_scope(req, route->scope); if (r < 0) return log_error_errno(r, "Could not set scope: %m"); r = sd_rtnl_message_route_set_flags(req, route->flags); if (r < 0) return log_error_errno(r, "Could not set flags: %m"); if (route->table != RT_TABLE_DEFAULT) { if (route->table < 256) { r = sd_rtnl_message_route_set_table(req, route->table); if (r < 0) return log_error_errno(r, "Could not set route table: %m"); } else { r = sd_rtnl_message_route_set_table(req, RT_TABLE_UNSPEC); if (r < 0) return log_error_errno(r, "Could not set route table: %m"); /* Table attribute to allow more than 256. */ r = sd_netlink_message_append_data(req, RTA_TABLE, &route->table, sizeof(route->table)); if (r < 0) return log_error_errno(r, "Could not append RTA_TABLE attribute: %m"); } } r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); if (r < 0) return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref); if (r < 0) return log_error_errno(r, "Could not append RTA_PREF attribute: %m"); r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); if (r < 0) return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); if (r < 0) return log_error_errno(r, "Could not send rtnetlink message: %m"); link_ref(link); lifetime = route->lifetime; r = route_add(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, &route); if (r < 0) return log_error_errno(r, "Could not add route: %m"); /* TODO: drop expiration handling once it can be pushed into the kernel */ route->lifetime = lifetime; if (route->lifetime != USEC_INFINITY) { r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(), route->lifetime, 0, route_expire_handler, route); if (r < 0) return log_error_errno(r, "Could not arm expiration timer: %m"); } sd_event_source_unref(route->expire); route->expire = expire; expire = NULL; return 0; }
int route_remove(Route *route, Link *link, sd_netlink_message_handler_t callback) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; int r; assert(link); assert(link->manager); assert(link->manager->rtnl); assert(link->ifindex > 0); assert(IN_SET(route->family, AF_INET, AF_INET6)); r = sd_rtnl_message_new_route(link->manager->rtnl, &req, RTM_DELROUTE, route->family, route->protocol); if (r < 0) return log_error_errno(r, "Could not create RTM_DELROUTE message: %m"); if (!in_addr_is_null(route->family, &route->gw)) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); } if (route->dst_prefixlen) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_DST attribute: %m"); r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); if (r < 0) return log_error_errno(r, "Could not set destination prefix length: %m"); } if (route->src_prefixlen) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_SRC attribute: %m"); r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); if (r < 0) return log_error_errno(r, "Could not set source prefix length: %m"); } if (!in_addr_is_null(route->family, &route->prefsrc)) { if (route->family == AF_INET) r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in); else if (route->family == AF_INET6) r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6); if (r < 0) return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); } r = sd_rtnl_message_route_set_scope(req, route->scope); if (r < 0) return log_error_errno(r, "Could not set scope: %m"); r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); if (r < 0) return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE)) { r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); if (r < 0) return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); } r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); if (r < 0) return log_error_errno(r, "Could not send rtnetlink message: %m"); link_ref(link); return 0; }
static int netdev_ipip_sit_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t; int r; assert(netdev); if (netdev->kind == NETDEV_KIND_IPIP) t = IPIP(netdev); else t = SIT(netdev); assert(m); assert(t); assert(t->family == AF_INET); if (link) { r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_PMTUDISC attribute: %m"); if (t->fou_tunnel) { r = sd_netlink_message_append_u16(m, IFLA_IPTUN_ENCAP_TYPE, t->fou_encap_type); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_TYPE attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_IPTUN_ENCAP_SPORT, htobe16(t->encap_src_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_SPORT attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_IPTUN_ENCAP_DPORT, htobe16(t->fou_destination_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_DPORT attribute: %m"); } if (netdev->kind == NETDEV_KIND_SIT) { if (t->sixrd_prefixlen > 0) { r = sd_netlink_message_append_in6_addr(m, IFLA_IPTUN_6RD_PREFIX, &t->sixrd_prefix); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_6RD_PREFIX attribute: %m"); /* u16 is deliberate here, even though we're passing a netmask that can never be >128. The kernel is * expecting to receive the prefixlen as a u16. */ r = sd_netlink_message_append_u16(m, IFLA_IPTUN_6RD_PREFIXLEN, t->sixrd_prefixlen); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_6RD_PREFIXLEN attribute: %m"); } if (t->isatap >= 0) { uint16_t flags = 0; SET_FLAG(flags, SIT_ISATAP, t->isatap); r = sd_netlink_message_append_u16(m, IFLA_IPTUN_FLAGS, flags); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLAGS attribute: %m"); } } return r; }
static int netdev_gre_erspan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { uint32_t ikey = 0; uint32_t okey = 0; uint16_t iflags = 0; uint16_t oflags = 0; Tunnel *t; int r; assert(netdev); assert(m); switch (netdev->kind) { case NETDEV_KIND_GRE: t = GRE(netdev); break; case NETDEV_KIND_ERSPAN: t = ERSPAN(netdev); break; case NETDEV_KIND_GRETAP: t = GRETAP(netdev); break; default: assert_not_reached("invalid netdev kind"); } assert(t); assert(t->family == AF_INET); if (link) { r = sd_netlink_message_append_u32(m, IFLA_GRE_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LINK attribute: %m"); } if (netdev->kind == NETDEV_KIND_ERSPAN) { r = sd_netlink_message_append_u32(m, IFLA_GRE_ERSPAN_INDEX, t->erspan_index); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_ERSPAN_INDEX attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_GRE_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_GRE_REMOTE, &t->remote.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_REMOTE attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GRE_TTL, t->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TTL attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GRE_TOS, t->tos); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TOS attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_GRE_PMTUDISC, t->pmtudisc); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_PMTUDISC attribute: %m"); if (t->key != 0) { ikey = okey = htobe32(t->key); iflags |= GRE_KEY; oflags |= GRE_KEY; } if (t->ikey != 0) { ikey = htobe32(t->ikey); iflags |= GRE_KEY; } if (t->okey != 0) { okey = htobe32(t->okey); oflags |= GRE_KEY; } if (t->gre_erspan_sequence > 0) { iflags |= GRE_SEQ; oflags |= GRE_SEQ; } else if (t->gre_erspan_sequence == 0) { iflags &= ~GRE_SEQ; oflags &= ~GRE_SEQ; } r = sd_netlink_message_append_u32(m, IFLA_GRE_IKEY, ikey); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_IKEY attribute: %m"); r = sd_netlink_message_append_u32(m, IFLA_GRE_OKEY, okey); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_OKEY attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_GRE_IFLAGS, iflags); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_IFLAGS attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_GRE_OFLAGS, oflags); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_OFLAGS, attribute: %m"); if (t->fou_tunnel) { r = sd_netlink_message_append_u16(m, IFLA_GRE_ENCAP_TYPE, t->fou_encap_type); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_ENCAP_TYPE attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_GRE_ENCAP_SPORT, htobe16(t->encap_src_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_ENCAP_SPORT attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_GRE_ENCAP_DPORT, htobe16(t->fou_destination_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_ENCAP_DPORT attribute: %m"); } return r; }
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; }