-static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
- int r;
-
- r = sd_rtnl_message_get_errno(m);
- if (r < 0) {
- log_warning("%s: could not bring up interface: %s",
- link->ifname, strerror(-r));
- link_enter_failed(link);
- }
-
- return 1;
-}
-
-static int link_up(Link *link) {
- _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
- int r;
-
- assert(link);
- assert(link->manager);
- assert(link->manager->rtnl);
-
- log_debug("%s: bringing up link", link->ifname);
-
- r = sd_rtnl_message_link_new(RTM_SETLINK, link->ifindex, &req);
- if (r < 0) {
- log_error("Could not allocate RTM_SETLINK message");
- return r;
- }
-
- r = sd_rtnl_message_link_set_flags(req, IFF_UP);
- if (r < 0) {
- log_error("Could not set link flags");
- return r;
- }
-
- r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link, 0, NULL);
- if (r < 0) {
- log_error("Could not send rtnetlink message: %s", strerror(-r));
- return r;
- }
-
- return 0;
-}
-
-static int link_bridge_joined(Link *link) {
- int r;
-
- assert(link);
- assert(link->state == LINK_STATE_JOINING_BRIDGE);
- assert(link->network);
-
- r = link_up(link);
- if (r < 0) {
- link_enter_failed(link);
- return r;
- }
-
- if (!link->network->dhcp) {
- r = link_enter_set_addresses(link);
- if (r < 0)
- link_enter_failed(link);
- return r;
- }
-
- return 0;
-}
-
-static int bridge_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
- int r;
-
- assert(link->state == LINK_STATE_JOINING_BRIDGE || link->state == LINK_STATE_FAILED);
- assert(link->network);
-
- if (link->state == LINK_STATE_FAILED)
- return 1;
-
- r = sd_rtnl_message_get_errno(m);
- if (r < 0) {
- log_warning("%s: could not join bridge '%s': %s",
- link->ifname, link->network->bridge->name, strerror(-r));
- link_enter_failed(link);
- return 1;
- } else
- log_debug("%s: joined bridge '%s'",
- link->ifname, link->network->bridge->name);
-
- link_bridge_joined(link);
-
- return 1;
-}
-
-static int link_enter_join_bridge(Link *link) {
- int r;
-
- assert(link);
- assert(link->network);
- assert(link->state == _LINK_STATE_INVALID);
-
- link->state = LINK_STATE_JOINING_BRIDGE;
-
- if (!link->network->bridge)
- return link_bridge_joined(link);
-
- log_debug("%s: joining bridge", link->ifname);
-
- r = bridge_join(link->network->bridge, link, &bridge_handler);
- if (r < 0) {
- log_warning("%s: could not join bridge '%s'", link->ifname,
- link->network->bridge->name);
- link_enter_failed(link);
- return r;
- }
-
- return 0;
-}
-
-static int link_get_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
- int r;
-
- r = sd_rtnl_message_get_errno(m);
- if (r < 0) {
- log_warning("%s: could not get state: %s",
- link->ifname, strerror(-r));
- link_enter_failed(link);
- }
-
- link_update(link, m);
-
- return 1;
-}
-
-static int link_get(Link *link) {
- _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
- int r;
-
- assert(link);
- assert(link->manager);
- assert(link->manager->rtnl);
-
- log_debug("%s: requesting link status", link->ifname);
-
- r = sd_rtnl_message_link_new(RTM_GETLINK, link->ifindex, &req);
- if (r < 0) {
- log_error("Could not allocate RTM_GETLINK message");
- return r;
- }
-
- r = sd_rtnl_call_async(link->manager->rtnl, req, link_get_handler, link, 0, NULL);
- if (r < 0) {
- log_error("Could not send rtnetlink message: %s", strerror(-r));
- return r;
- }
-
- return 0;
-}
-
-int link_configure(Link *link) {
- int r;
-
- assert(link);
- assert(link->network);
- assert(link->state == _LINK_STATE_INVALID);
-
- r = link_get(link);
- if (r < 0) {
- link_enter_failed(link);
- return r;
- }
-
- r = link_enter_join_bridge(link);
- if (r < 0)
- return r;
-
- return 0;
-}
-