+ assert(link->network);
+ assert(link->state == LINK_STATE_INITIALIZING);
+
+ link->state = LINK_STATE_ENSLAVING;
+
+ link_save(link);
+
+ if (!link->network->bridge &&
+ !link->network->bond &&
+ !link->network->tunnel &&
+ hashmap_isempty(link->network->vlans) &&
+ hashmap_isempty(link->network->macvlans) &&
+ hashmap_isempty(link->network->vxlans))
+ return link_enslaved(link);
+
+ if (link->network->bond) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%-*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, link->network->bond->ifname,
+ NETDEV(link->network->bond),
+ NULL);
+
+ r = netdev_enslave(link->network->bond, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, link->network->bond->ifname, strerror(-r),
+ NETDEV(link->network->bond),
+ NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
+ if (link->network->bridge) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%-*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, link->network->bridge->ifname,
+ NETDEV(link->network->bridge),
+ NULL);
+
+ r = netdev_enslave(link->network->bridge, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, link->network->bridge->ifname, strerror(-r),
+ NETDEV(link->network->bridge),
+ NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
+ if (link->network->tunnel) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%-*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, link->network->tunnel->ifname,
+ NETDEV(link->network->tunnel),
+ NULL);
+
+ r = netdev_enslave(link->network->tunnel, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, link->network->tunnel->ifname, strerror(-r),
+ NETDEV(link->network->tunnel),
+ NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
+ HASHMAP_FOREACH(vlan, link->network->vlans, i) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%-*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, vlan->ifname, NETDEV(vlan), NULL);
+
+ r = netdev_enslave(vlan, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, vlan->ifname, strerror(-r),
+ NETDEV(vlan), NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
+ HASHMAP_FOREACH(macvlan, link->network->macvlans, i) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%-*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, macvlan->ifname, NETDEV(macvlan), NULL);
+
+ r = netdev_enslave(macvlan, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, macvlan->ifname, strerror(-r),
+ NETDEV(macvlan), NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
+ HASHMAP_FOREACH(vxlan, link->network->vxlans, i) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, vxlan->ifname, NETDEV(vxlan), NULL);
+
+ r = netdev_enslave(vxlan, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, vxlan->ifname, strerror(-r),
+ NETDEV(vxlan), NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
+ return 0;
+}
+
+static int link_configure(Link *link) {
+ int r;
+
+ assert(link);
+ assert(link->state == LINK_STATE_INITIALIZING);
+
+ if (link->network->ipv4ll) {
+ uint8_t seed[8];
+
+ r = sd_ipv4ll_new(&link->ipv4ll);
+ if (r < 0)
+ return r;
+
+ if (link->udev_device) {
+ r = net_get_unique_predictable_data(link->udev_device, seed);
+ if (r >= 0) {
+ r = sd_ipv4ll_set_address_seed(link->ipv4ll, seed);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ r = sd_ipv4ll_attach_event(link->ipv4ll, NULL, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4ll_set_index(link->ipv4ll, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4ll_set_callback(link->ipv4ll, ipv4ll_handler, link);
+ if (r < 0)
+ return r;
+ }
+
+ if (link->network->dhcp) {
+ r = sd_dhcp_client_new(&link->dhcp_client);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_client_attach_event(link->dhcp_client, NULL, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_client_set_mac(link->dhcp_client, &link->mac);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_client_set_index(link->dhcp_client, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_client_set_callback(link->dhcp_client, dhcp_handler, link);
+ if (r < 0)
+ return r;
+
+ if (link->network->dhcp_mtu) {
+ r = sd_dhcp_client_set_request_option(link->dhcp_client, 26);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ if (link->network->dhcp_server) {
+ r = sd_dhcp_server_new(&link->dhcp_server, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_server_attach_event(link->dhcp_server, NULL, 0);
+ if (r < 0)
+ return r;
+ }
+
+ if (link->network->dhcp6) {
+ 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);
+ if (r < 0)
+ return r;
+ }
+
+ if (link_has_carrier(link->flags, link->kernel_operstate)) {
+ r = link_acquire_conf(link);
+ if (r < 0)
+ return r;
+ }
+
+ return link_enter_enslave(link);
+}
+
+static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ Link *link = userdata;
+ Network *network;
+ int r;
+
+ assert(link);
+ assert(link->ifname);
+ assert(link->manager);
+
+ if (link->state != LINK_STATE_INITIALIZING)
+ return 0;
+
+ log_debug_link(link, "link state is up-to-date");
+
+ r = network_get(link->manager, link->udev_device, link->ifname, &link->mac, &network);
+ if (r == -ENOENT) {
+ link_enter_unmanaged(link);
+ return 0;
+ } else if (r < 0)
+ return r;
+
+ r = network_apply(link->manager, network, link);
+ if (r < 0)
+ return r;
+
+ r = link_configure(link);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int link_initialized(Link *link, struct udev_device *device) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ int r;
+
+ assert(link);
+ assert(link->manager);
+ assert(link->manager->rtnl);
+ assert(device);
+
+ if (link->state != LINK_STATE_INITIALIZING)
+ return 0;
+
+ log_debug_link(link, "udev initialized link");
+
+ link->udev_device = udev_device_ref(device);
+
+ /* udev has initialized the link, but we don't know if we have yet processed
+ the NEWLINK messages with the latest state. Do a GETLINK, when it returns
+ we know that the pending NEWLINKs have already been processed and that we
+ are up-to-date */
+
+ r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_GETLINK, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_initialized_and_synced, link, 0, NULL);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
+ Manager *m = userdata;
+ Link *link = NULL;
+ uint16_t type;
+ _cleanup_address_free_ Address *address = NULL;
+ Address *ad;
+ char buf[INET6_ADDRSTRLEN];
+ bool address_dropped = false;
+ int r, ifindex;
+
+ assert(rtnl);
+ assert(message);