chiark / gitweb /
networkd: integrate LLDP
[elogind.git] / src / network / networkd-link.c
index 26ef0feaae2d6c635d9fe6284e0db28adfb6b635..725e22b93f69bda768e7c28fe6e164cafe55b6c7 100644 (file)
@@ -75,6 +75,19 @@ static bool link_ipv4ll_enabled(Link *link) {
         return link->network->ipv4ll;
 }
 
+static bool link_lldp_enabled(Link *link) {
+        if (link->flags & IFF_LOOPBACK)
+                return false;
+
+        if (!link->network)
+                return false;
+
+        if(link->network->bridge)
+                return false;
+
+        return link->network->lldp;
+}
+
 #define FLAG_STRING(string, flag, old, new) \
         (((old ^ new) & flag) \
                 ? ((old & flag) ? (" -" string) : (" +" string)) \
@@ -89,7 +102,7 @@ static int link_update_flags(Link *link, sd_rtnl_message *m) {
 
         r = sd_rtnl_message_link_get_flags(m, &flags);
         if (r < 0) {
-                log_warning_link(link, "Could not get link flags");
+                log_link_warning(link, "Could not get link flags");
                 return r;
         }
 
@@ -103,7 +116,7 @@ static int link_update_flags(Link *link, sd_rtnl_message *m) {
                 return 0;
 
         if (link->flags != flags) {
-                log_debug_link(link, "flags change:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+                log_link_debug(link, "flags change:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
                                FLAG_STRING("LOOPBACK", IFF_LOOPBACK, link->flags, flags),
                                FLAG_STRING("MASTER", IFF_MASTER, link->flags, flags),
                                FLAG_STRING("SLAVE", IFF_SLAVE, link->flags, flags),
@@ -136,12 +149,12 @@ static int link_update_flags(Link *link, sd_rtnl_message *m) {
                 /* link flags are currently at most 18 bits, let's align to
                  * printing 20 */
                 if (unknown_flags_added)
-                        log_debug_link(link,
+                        log_link_debug(link,
                                        "unknown link flags gained: %#.5x (ignoring)",
                                        unknown_flags_added);
 
                 if (unknown_flags_removed)
-                        log_debug_link(link,
+                        log_link_debug(link,
                                        "unknown link flags lost: %#.5x (ignoring)",
                                        unknown_flags_removed);
         }
@@ -194,7 +207,7 @@ static int link_new(Manager *manager, sd_rtnl_message *message, Link **ret) {
 
         r = sd_rtnl_message_read_ether_addr(message, IFLA_ADDRESS, &link->mac);
         if (r < 0)
-                log_debug_link(link, "MAC address not found for new device, continuing without");
+                log_link_debug(link, "MAC address not found for new device, continuing without");
 
         r = asprintf(&link->state_file, "/run/systemd/netif/links/%d",
                      link->ifindex);
@@ -299,7 +312,7 @@ void link_drop(Link *link) {
 
         link->state = LINK_STATE_LINGER;
 
-        log_debug_link(link, "link removed");
+        log_link_debug(link, "link removed");
 
         link_unref(link);
 
@@ -309,7 +322,7 @@ void link_drop(Link *link) {
 static void link_enter_unmanaged(Link *link) {
         assert(link);
 
-        log_debug_link(link, "unmanaged");
+        log_link_debug(link, "unmanaged");
 
         link->state = LINK_STATE_UNMANAGED;
 
@@ -329,7 +342,7 @@ static int link_stop_clients(Link *link) {
         if (link->dhcp_client) {
                 k = sd_dhcp_client_stop(link->dhcp_client);
                 if (k < 0) {
-                        log_warning_link(link, "Could not stop DHCPv4 client: %s",
+                        log_link_warning(link, "Could not stop DHCPv4 client: %s",
                                          strerror(-r));
                         r = k;
                 }
@@ -338,7 +351,7 @@ static int link_stop_clients(Link *link) {
         if (link->ipv4ll) {
                 k = sd_ipv4ll_stop(link->ipv4ll);
                 if (k < 0) {
-                        log_warning_link(link, "Could not stop IPv4 link-local: %s",
+                        log_link_warning(link, "Could not stop IPv4 link-local: %s",
                                          strerror(-r));
                         r = k;
                 }
@@ -349,7 +362,7 @@ static int link_stop_clients(Link *link) {
                 if (link->dhcp6_client) {
                         k = sd_dhcp6_client_stop(link->dhcp6_client);
                         if (k < 0) {
-                                log_warning_link(link, "Could not stop DHCPv6 client: %s",
+                                log_link_warning(link, "Could not stop DHCPv6 client: %s",
                                                  strerror(-r));
                                 r = k;
                         }
@@ -357,13 +370,23 @@ static int link_stop_clients(Link *link) {
 
                 k = sd_icmp6_nd_stop(link->icmp6_router_discovery);
                 if (k < 0) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "Could not stop ICMPv6 router discovery: %s",
                                          strerror(-r));
                         r = k;
                 }
         }
 
+        if (link->lldp) {
+
+                k = sd_lldp_stop(link->lldp);
+                if (k < 0) {
+                        log_link_warning(link, "Could not stop LLDP : %s",
+                                         strerror(-r));
+                        r = k;
+                }
+        }
+
         return r;
 }
 
@@ -373,7 +396,7 @@ void link_enter_failed(Link *link) {
         if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
                 return;
 
-        log_warning_link(link, "failed");
+        log_link_warning(link, "failed");
 
         link->state = LINK_STATE_FAILED;
 
@@ -425,13 +448,13 @@ static int link_enter_configured(Link *link) {
 
                 address = link_find_dhcp_server_address(link);
                 if (!address) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "Failed to find suitable address for DHCPv4 server instance.");
                         link_enter_failed(link);
                         return 0;
                 }
 
-                log_debug_link(link, "offering DHCPv4 leases");
+                log_link_debug(link, "offering DHCPv4 leases");
 
                 r = sd_dhcp_server_set_address(link->dhcp_server,
                                                &address->in_addr.in,
@@ -460,7 +483,7 @@ static int link_enter_configured(Link *link) {
 
                 r = sd_dhcp_server_start(link->dhcp_server);
                 if (r < 0) {
-                        log_warning_link(link, "could not start DHCPv4 server "
+                        log_link_warning(link, "could not start DHCPv4 server "
                                          "instance: %s", strerror(-r));
 
                         link_enter_failed(link);
@@ -469,7 +492,7 @@ static int link_enter_configured(Link *link) {
                 }
         }
 
-        log_info_link(link, "link configured");
+        log_link_info(link, "link configured");
 
         link->state = LINK_STATE_CONFIGURED;
 
@@ -515,15 +538,10 @@ static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 
         r = sd_rtnl_message_get_errno(m);
         if (r < 0 && r != -EEXIST)
-                log_struct_link(LOG_WARNING, link,
-                                "MESSAGE=%-*s: could not set route: %s",
-                                IFNAMSIZ,
-                                link->ifname, strerror(-r),
-                                "ERRNO=%d", -r,
-                                NULL);
+                log_link_warning_errno(link, -r, "%-*s: could not set route: %m", IFNAMSIZ, link->ifname);
 
         if (link->link_messages == 0) {
-                log_debug_link(link, "routes set");
+                log_link_debug(link, "routes set");
                 link->static_configured = true;
                 link_client_handler(link);
         }
@@ -544,7 +562,7 @@ static int link_enter_set_routes(Link *link) {
         LIST_FOREACH(routes, rt, link->network->static_routes) {
                 r = route_configure(rt, link, &route_handler);
                 if (r < 0) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "could not set routes: %s",
                                          strerror(-r));
                         link_enter_failed(link);
@@ -558,7 +576,7 @@ static int link_enter_set_routes(Link *link) {
                 link->static_configured = true;
                 link_client_handler(link);
         } else
-                log_debug_link(link, "setting routes");
+                log_link_debug(link, "setting routes");
 
         return 0;
 }
@@ -576,38 +594,7 @@ int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 
         r = sd_rtnl_message_get_errno(m);
         if (r < 0 && r != -ESRCH)
-                log_struct_link(LOG_WARNING, link,
-                                "MESSAGE=%-*s: could not drop route: %s",
-                                IFNAMSIZ,
-                                link->ifname, strerror(-r),
-                                "ERRNO=%d", -r,
-                                NULL);
-
-        return 1;
-}
-
-int link_get_address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
-        _cleanup_link_unref_ Link *link = userdata;
-        int r;
-
-        assert(rtnl);
-        assert(m);
-        assert(link);
-        assert(link->manager);
-
-        for (; m; m = sd_rtnl_message_next(m)) {
-                r = sd_rtnl_message_get_errno(m);
-                if (r < 0) {
-                        log_debug_link(link, "getting address failed: %s",
-                                       strerror(-r));
-                        continue;
-                }
-
-                r = link_rtnl_process_address(rtnl, m, link->manager);
-                if (r < 0)
-                        log_warning_link(link, "could not process address: %s",
-                                         strerror(-r));
-        }
+                log_link_warning_errno(link, -r, "%-*s: could not drop route: %m", IFNAMSIZ, link->ifname);
 
         return 1;
 }
@@ -631,20 +618,12 @@ static int address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 
         r = sd_rtnl_message_get_errno(m);
         if (r < 0 && r != -EEXIST)
-                log_struct_link(LOG_WARNING, link,
-                                "MESSAGE=%-*s: could not set address: %s",
-                                IFNAMSIZ,
-                                link->ifname, strerror(-r),
-                                "ERRNO=%d", -r,
-                                NULL);
-        else if (r >= 0) {
-                /* calling handler directly so take a ref */
-                link_ref(link);
-                link_get_address_handler(rtnl, m, link);
-        }
+                log_link_warning_errno(link, -r, "%-*s: could not set address: %m", IFNAMSIZ, link->ifname);
+        else if (r >= 0)
+                link_rtnl_process_address(rtnl, m, link->manager);
 
         if (link->link_messages == 0) {
-                log_debug_link(link, "addresses set");
+                log_link_debug(link, "addresses set");
                 link_enter_set_routes(link);
         }
 
@@ -664,7 +643,7 @@ static int link_enter_set_addresses(Link *link) {
         LIST_FOREACH(addresses, ad, link->network->static_addresses) {
                 r = address_configure(ad, link, &address_handler);
                 if (r < 0) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "could not set addresses: %s",
                                          strerror(-r));
                         link_enter_failed(link);
@@ -677,7 +656,7 @@ static int link_enter_set_addresses(Link *link) {
         if (link->link_messages == 0) {
                 link_enter_set_routes(link);
         } else
-                log_debug_link(link, "setting addresses");
+                log_link_debug(link, "setting addresses");
 
         return 0;
 }
@@ -695,14 +674,45 @@ int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata)
 
         r = sd_rtnl_message_get_errno(m);
         if (r < 0 && r != -EADDRNOTAVAIL)
-                log_struct_link(LOG_WARNING, link,
-                                "MESSAGE=%-*s: could not drop address: %s",
+                log_link_warning_errno(link, -r, "%-*s: could not drop address: %m", IFNAMSIZ, link->ifname);
+
+        return 1;
+}
+
+static int link_set_bridge_fdb(const Link *const link) {
+        FdbEntry *fdb_entry;
+        int r = 0;
+
+        LIST_FOREACH(static_fdb_entries, fdb_entry, link->network->static_fdb_entries) {
+                r = fdb_entry_configure(link->manager->rtnl, fdb_entry, link->ifindex);
+                if(r < 0) {
+                        log_link_error(link, "Failed to add MAC entry to static MAC table: %s", strerror(-r));
+                        break;
+                }
+        }
+
+        return r;
+}
+
+static int link_set_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+        _cleanup_link_unref_ Link *link = userdata;
+        int r;
+
+        log_link_debug(link, "set link");
+
+        r = sd_rtnl_message_get_errno(m);
+        if (r < 0 && r != -EEXIST) {
+                log_link_struct(link, LOG_ERR,
+                                "MESSAGE=%-*s: could not join netdev: %s",
                                 IFNAMSIZ,
                                 link->ifname, strerror(-r),
                                 "ERRNO=%d", -r,
                                 NULL);
+                link_enter_failed(link);
+                return 1;
+        }
 
-        return 1;
+        return 0;
 }
 
 static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata,
@@ -717,7 +727,7 @@ static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata,
 
         r = sd_bus_message_get_errno(m);
         if (r > 0)
-                log_warning_link(link, "Could not set hostname: %s",
+                log_link_warning(link, "Could not set hostname: %s",
                                  strerror(r));
 
         return 1;
@@ -731,11 +741,11 @@ int link_set_hostname(Link *link, const char *hostname) {
         assert(link->manager);
         assert(hostname);
 
-        log_debug_link(link, "Setting transient hostname: '%s'", hostname);
+        log_link_debug(link, "Setting transient hostname: '%s'", hostname);
 
         if (!link->manager->bus) {
                 /* TODO: replace by assert when we can rely on kdbus */
-                log_info_link(link,
+                log_link_info(link,
                               "Not connected to system bus, ignoring transient hostname.");
                 return 0;
         }
@@ -757,7 +767,7 @@ int link_set_hostname(Link *link, const char *hostname) {
         r = sd_bus_call_async(link->manager->bus, NULL, m, set_hostname_handler,
                               link, 0);
         if (r < 0) {
-                log_error_link(link, "Could not set transient hostname: %s",
+                log_link_error(link, "Could not set transient hostname: %s",
                                strerror(-r));
                 return r;
         }
@@ -780,11 +790,7 @@ static int set_mtu_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 
         r = sd_rtnl_message_get_errno(m);
         if (r < 0)
-                log_struct_link(LOG_WARNING, link,
-                                "MESSAGE=%-*s: could not set MTU: %s",
-                                IFNAMSIZ, link->ifname, strerror(-r),
-                                "ERRNO=%d", -r,
-                                NULL);
+                log_link_warning_errno(link, -r, "%-*s: could not set MTU: %m", IFNAMSIZ, link->ifname);
 
         return 1;
 }
@@ -797,25 +803,25 @@ int link_set_mtu(Link *link, uint32_t mtu) {
         assert(link->manager);
         assert(link->manager->rtnl);
 
-        log_debug_link(link, "setting MTU: %" PRIu32, mtu);
+        log_link_debug(link, "setting MTU: %" PRIu32, mtu);
 
         r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
                                      RTM_SETLINK, link->ifindex);
         if (r < 0) {
-                log_error_link(link, "Could not allocate RTM_SETLINK message");
+                log_link_error(link, "Could not allocate RTM_SETLINK message");
                 return r;
         }
 
         r = sd_rtnl_message_append_u32(req, IFLA_MTU, mtu);
         if (r < 0) {
-                log_error_link(link, "Could not append MTU: %s", strerror(-r));
+                log_link_error(link, "Could not append MTU: %s", strerror(-r));
                 return r;
         }
 
         r = sd_rtnl_call_async(link->manager->rtnl, req, set_mtu_handler, link,
                                0, NULL);
         if (r < 0) {
-                log_error_link(link,
+                log_link_error(link,
                                "Could not send rtnetlink message: %s",
                                strerror(-r));
                 return r;
@@ -826,104 +832,67 @@ int link_set_mtu(Link *link, uint32_t mtu) {
         return 0;
 }
 
-static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) {
-        Link *link = userdata;
-
-        assert(link);
-        assert(link->network);
-        assert(link->manager);
-
-        if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
-                return;
-
-        switch(event) {
-        case DHCP6_EVENT_STOP:
-        case DHCP6_EVENT_RESEND_EXPIRE:
-        case DHCP6_EVENT_RETRANS_MAX:
-        case DHCP6_EVENT_IP_ACQUIRE:
-                log_debug_link(link, "DHCPv6 event %d", event);
-
-                break;
-
-        default:
-                if (event < 0)
-                        log_warning_link(link, "DHCPv6 error: %s",
-                                         strerror(-event));
-                else
-                        log_warning_link(link, "DHCPv6 unknown event: %d",
-                                         event);
-                return;
-        }
-}
-
-static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) {
-        Link *link = userdata;
+static int link_set_bridge(Link *link) {
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
         int r;
 
         assert(link);
         assert(link->network);
-        assert(link->manager);
 
-        if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
-                return;
-
-        switch(event) {
-        case ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE:
-        case ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER:
-                return;
-
-        case ICMP6_EVENT_ROUTER_ADVERTISMENT_TIMEOUT:
-        case ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED:
-                break;
-
-        default:
-                if (event < 0)
-                        log_warning_link(link, "ICMPv6 error: %s",
-                                         strerror(-event));
-                else
-                        log_warning_link(link, "ICMPv6 unknown event: %d",
-                                         event);
+        if(link->network->cost == 0)
+                return 0;
 
-                return;
+        r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
+                                     RTM_SETLINK, link->ifindex);
+        if (r < 0) {
+                log_link_error(link, "Could not allocate RTM_SETLINK message");
+                return r;
         }
 
-        if (link->dhcp6_client)
-                return;
-
-        r = sd_dhcp6_client_new(&link->dhcp6_client);
-        if (r < 0)
-                return;
-
-        r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0);
+        r = sd_rtnl_message_link_set_family(req, PF_BRIDGE);
         if (r < 0) {
-                link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
-                return;
+                log_link_error(link,
+                               "Could not set message family %s", strerror(-r));
+                return r;
         }
 
-        r = sd_dhcp6_client_set_mac(link->dhcp6_client,
-                                    (const uint8_t *) &link->mac,
-                                    sizeof (link->mac), ARPHRD_ETHER);
+        r = sd_rtnl_message_open_container(req, IFLA_PROTINFO);
         if (r < 0) {
-                link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
-                return;
+                log_link_error(link,
+                               "Could not append IFLA_PROTINFO attribute: %s",
+                               strerror(-r));
+                return r;
         }
 
-        r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex);
+        if(link->network->cost != 0) {
+                r = sd_rtnl_message_append_u32(req, IFLA_BRPORT_COST, link->network->cost);
+                if (r < 0) {
+                        log_link_error(link,
+                                       "Could not append IFLA_BRPORT_COST attribute: %s",
+                                       strerror(-r));
+                        return r;
+                }
+        }
+
+        r = sd_rtnl_message_close_container(req);
         if (r < 0) {
-                link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
-                return;
+                log_link_error(link,
+                               "Could not append IFLA_LINKINFO attribute: %s",
+                               strerror(-r));
+                return r;
         }
 
-        r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler,
-                                         link);
+        r = sd_rtnl_call_async(link->manager->rtnl, req, link_set_handler, link, 0, NULL);
         if (r < 0) {
-                link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
-                return;
+                log_link_error(link,
+                               "Could not send rtnetlink message: %s",
+                               strerror(-r));
+                return r;
         }
 
-        r = sd_dhcp6_client_start(link->dhcp6_client);
-        if (r < 0)
-                link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
+        link_ref(link);
+
+        return r;
 }
 
 static int link_acquire_conf(Link *link) {
@@ -937,11 +906,11 @@ static int link_acquire_conf(Link *link) {
         if (link_ipv4ll_enabled(link)) {
                 assert(link->ipv4ll);
 
-                log_debug_link(link, "acquiring IPv4 link-local address");
+                log_link_debug(link, "acquiring IPv4 link-local address");
 
                 r = sd_ipv4ll_start(link->ipv4ll);
                 if (r < 0) {
-                        log_warning_link(link, "could not acquire IPv4 "
+                        log_link_warning(link, "could not acquire IPv4 "
                                          "link-local address");
                         return r;
                 }
@@ -950,11 +919,11 @@ static int link_acquire_conf(Link *link) {
         if (link_dhcp4_enabled(link)) {
                 assert(link->dhcp_client);
 
-                log_debug_link(link, "acquiring DHCPv4 lease");
+                log_link_debug(link, "acquiring DHCPv4 lease");
 
                 r = sd_dhcp_client_start(link->dhcp_client);
                 if (r < 0) {
-                        log_warning_link(link, "could not acquire DHCPv4 "
+                        log_link_warning(link, "could not acquire DHCPv4 "
                                          "lease");
                         return r;
                 }
@@ -963,16 +932,28 @@ static int link_acquire_conf(Link *link) {
         if (link_dhcp6_enabled(link)) {
                 assert(link->icmp6_router_discovery);
 
-                log_debug_link(link, "discovering IPv6 routers");
+                log_link_debug(link, "discovering IPv6 routers");
 
                 r = sd_icmp6_router_solicitation_start(link->icmp6_router_discovery);
                 if (r < 0) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "could not start IPv6 router discovery");
                         return r;
                 }
         }
 
+        if (link_lldp_enabled(link)) {
+                assert(link->lldp);
+
+                log_link_debug(link, "Starting LLDP");
+
+                r = sd_lldp_start(link->lldp);
+                if (r < 0) {
+                        log_link_warning(link, "could not start LLDP ");
+                        return r;
+                }
+        }
+
         return 0;
 }
 
@@ -1003,12 +984,7 @@ static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
         if (r < 0) {
                 /* we warn but don't fail the link, as it may
                    be brought up later */
-                log_struct_link(LOG_WARNING, link,
-                                "MESSAGE=%-*s: could not bring up interface: %s",
-                                IFNAMSIZ,
-                                link->ifname, strerror(-r),
-                                "ERRNO=%d", -r,
-                                NULL);
+                log_link_warning_errno(link, -r, "%-*s: could not bring up interface: %m", IFNAMSIZ, link->ifname);
         }
 
         return 1;
@@ -1019,29 +995,46 @@ static int link_up(Link *link) {
         int r;
 
         assert(link);
+        assert(link->network);
         assert(link->manager);
         assert(link->manager->rtnl);
 
-        log_debug_link(link, "bringing link up");
+        log_link_debug(link, "bringing link up");
 
         r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
                                      RTM_SETLINK, link->ifindex);
         if (r < 0) {
-                log_error_link(link, "Could not allocate RTM_SETLINK message");
+                log_link_error(link, "Could not allocate RTM_SETLINK message");
                 return r;
         }
 
         r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
         if (r < 0) {
-                log_error_link(link, "Could not set link flags: %s",
+                log_link_error(link, "Could not set link flags: %s",
                                strerror(-r));
                 return r;
         }
 
+        if (link->network->mac) {
+                r = sd_rtnl_message_append_ether_addr(req, IFLA_ADDRESS, link->network->mac);
+                if (r < 0) {
+                        log_link_error(link, "Could not set MAC address: %s", strerror(-r));
+                        return r;
+                }
+        }
+
+        if (link->network->mtu) {
+                r = sd_rtnl_message_append_u32(req, IFLA_MTU, link->network->mtu);
+                if (r < 0) {
+                        log_link_error(link, "Could not set MTU: %s", strerror(-r));
+                        return r;
+                }
+        }
+
         r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link,
                                0, NULL);
         if (r < 0) {
-                log_error_link(link,
+                log_link_error(link,
                                "Could not send rtnetlink message: %s",
                                strerror(-r));
                 return r;
@@ -1066,6 +1059,15 @@ static int link_joined(Link *link) {
                 }
         }
 
+        if(link->network->bridge) {
+                r = link_set_bridge(link);
+                if (r < 0) {
+                        log_link_error(link,
+                                       "Could not set bridge message: %s",
+                                       strerror(-r));
+                }
+        }
+
         return link_enter_set_addresses(link);
 }
 
@@ -1084,16 +1086,11 @@ static int netdev_join_handler(sd_rtnl *rtnl, sd_rtnl_message *m,
 
         r = sd_rtnl_message_get_errno(m);
         if (r < 0 && r != -EEXIST) {
-                log_struct_link(LOG_ERR, link,
-                                "MESSAGE=%-*s: could not join netdev: %s",
-                                IFNAMSIZ,
-                                link->ifname, strerror(-r),
-                                "ERRNO=%d", -r,
-                                NULL);
+                log_link_error_errno(link, -r, "%-*s: could not join netdev: %m", IFNAMSIZ, link->ifname);
                 link_enter_failed(link);
                 return 1;
         } else
-                log_debug_link(link, "joined netdev");
+                log_link_debug(link, "joined netdev");
 
         if (link->enslaving <= 0)
                 link_joined(link);
@@ -1120,7 +1117,7 @@ static int link_enter_join_netdev(Link *link) {
                 return link_joined(link);
 
         if (link->network->bond) {
-                log_struct_link(LOG_DEBUG, link,
+                log_link_struct(link, LOG_DEBUG,
                                 "MESSAGE=%-*s: enslaving by '%s'",
                                 IFNAMSIZ,
                                 link->ifname, link->network->bond->ifname,
@@ -1129,7 +1126,7 @@ static int link_enter_join_netdev(Link *link) {
 
                 r = netdev_join(link->network->bond, link, &netdev_join_handler);
                 if (r < 0) {
-                        log_struct_link(LOG_WARNING, link,
+                        log_link_struct(link, LOG_WARNING,
                                         "MESSAGE=%-*s: could not join netdev '%s': %s",
                                         IFNAMSIZ,
                                         link->ifname, link->network->bond->ifname,
@@ -1144,7 +1141,7 @@ static int link_enter_join_netdev(Link *link) {
         }
 
         if (link->network->bridge) {
-                log_struct_link(LOG_DEBUG, link,
+                log_link_struct(link, LOG_DEBUG,
                                 "MESSAGE=%-*s: enslaving by '%s'",
                                 IFNAMSIZ,
                                 link->ifname, link->network->bridge->ifname,
@@ -1154,7 +1151,7 @@ static int link_enter_join_netdev(Link *link) {
                 r = netdev_join(link->network->bridge, link,
                                 &netdev_join_handler);
                 if (r < 0) {
-                        log_struct_link(LOG_WARNING, link,
+                        log_link_struct(link, LOG_WARNING,
                                         "MESSAGE=%-*s: could not join netdev '%s': %s",
                                         IFNAMSIZ,
                                         link->ifname, link->network->bridge->ifname,
@@ -1169,7 +1166,7 @@ static int link_enter_join_netdev(Link *link) {
         }
 
         HASHMAP_FOREACH(netdev, link->network->stacked_netdevs, i) {
-                log_struct_link(LOG_DEBUG, link,
+                log_link_struct(link, LOG_DEBUG,
                                 "MESSAGE=%-*s: enslaving by '%s'",
                                 IFNAMSIZ,
                                 link->ifname, netdev->ifname, NETDEVIF(netdev),
@@ -1177,7 +1174,7 @@ static int link_enter_join_netdev(Link *link) {
 
                 r = netdev_join(netdev, link, &netdev_join_handler);
                 if (r < 0) {
-                        log_struct_link(LOG_WARNING, link,
+                        log_link_struct(link, LOG_WARNING,
                                         "MESSAGE=%-*s: could not join netdev '%s': %s",
                                         IFNAMSIZ,
                                         link->ifname, netdev->ifname,
@@ -1200,6 +1197,10 @@ static int link_configure(Link *link) {
         assert(link->network);
         assert(link->state == LINK_STATE_PENDING);
 
+        r = link_set_bridge_fdb(link);
+        if (r < 0)
+                return r;
+
         if (link_ipv4ll_enabled(link)) {
                 r = ipv4ll_configure(link);
                 if (r < 0)
@@ -1223,27 +1224,17 @@ static int link_configure(Link *link) {
         }
 
         if (link_dhcp6_enabled(link)) {
-                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);
+                r = icmp6_configure(link);
                 if (r < 0)
                         return r;
+        }
 
-                r = sd_icmp6_nd_set_index(link->icmp6_router_discovery,
-                                          link->ifindex);
+        if (link_lldp_enabled(link)) {
+                r = sd_lldp_new(link->ifindex, link->ifname, &link->mac, &link->lldp);
                 if (r < 0)
                         return r;
 
-                r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery,
-                                             icmp6_router_handler, link);
+                r = sd_lldp_attach_event(link->lldp, NULL, 0);
                 if (r < 0)
                         return r;
         }
@@ -1270,7 +1261,7 @@ static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m,
         if (link->state != LINK_STATE_PENDING)
                 return 1;
 
-        log_debug_link(link, "link state is up-to-date");
+        log_link_debug(link, "link state is up-to-date");
 
         r = network_get(link->manager, link->udev_device, link->ifname,
                         &link->mac, &network);
@@ -1282,13 +1273,13 @@ static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m,
 
         if (link->flags & IFF_LOOPBACK) {
                 if (network->ipv4ll)
-                        log_debug_link(link, "ignoring IPv4LL for loopback link");
+                        log_link_debug(link, "ignoring IPv4LL for loopback link");
 
                 if (network->dhcp != DHCP_SUPPORT_NONE)
-                        log_debug_link(link, "ignoring DHCP clients for loopback link");
+                        log_link_debug(link, "ignoring DHCP clients for loopback link");
 
                 if (network->dhcp_server)
-                        log_debug_link(link, "ignoring DHCP server for loopback link");
+                        log_link_debug(link, "ignoring DHCP server for loopback link");
         }
 
         r = network_apply(link->manager, network, link);
@@ -1317,7 +1308,7 @@ int link_initialized(Link *link, struct udev_device *device) {
         if (link->udev_device)
                 return 0;
 
-        log_debug_link(link, "udev initialized link");
+        log_link_debug(link, "udev initialized link");
 
         link->udev_device = udev_device_ref(device);
 
@@ -1341,8 +1332,7 @@ int link_initialized(Link *link, struct udev_device *device) {
         return 0;
 }
 
-int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
-                              void *userdata) {
+int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
         Manager *m = userdata;
         Link *link = NULL;
         uint16_t type;
@@ -1358,6 +1348,14 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
         assert(message);
         assert(m);
 
+        if (sd_rtnl_message_is_error(message)) {
+                r = sd_rtnl_message_get_errno(message);
+                if (r < 0)
+                        log_warning_errno(r, "rtnl: failed to receive address: %m");
+
+                return 0;
+        }
+
         r = sd_rtnl_message_get_type(message, &type);
         if (r < 0) {
                 log_warning("rtnl: could not get message type");
@@ -1365,13 +1363,16 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
         }
 
         r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
-        if (r < 0 || ifindex <= 0) {
-                log_warning("rtnl: received address message without valid ifindex, ignoring");
+        if (r < 0) {
+                log_warning_errno(r, "rtnl: could not get ifindex: %m");
+                return 0;
+        } else if (ifindex <= 0) {
+                log_warning("rtnl: received address message with invalid ifindex: %d", ifindex);
                 return 0;
         } else {
                 r = link_get(m, ifindex, &link);
                 if (r < 0 || !link) {
-                        log_warning("rtnl: received address for nonexistent link (%d), ignoring", ifindex);
+                        log_warning("rtnl: received address for nonexistent link (%d), ignoring", ifindex);
                         return 0;
                 }
         }
@@ -1382,28 +1383,28 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
 
         r = sd_rtnl_message_addr_get_family(message, &address->family);
         if (r < 0 || !IN_SET(address->family, AF_INET, AF_INET6)) {
-                log_warning_link(link,
+                log_link_warning(link,
                                  "rtnl: received address with invalid family, ignoring");
                 return 0;
         }
 
         r = sd_rtnl_message_addr_get_prefixlen(message, &address->prefixlen);
         if (r < 0) {
-                log_warning_link(link,
+                log_link_warning(link,
                                  "rtnl: received address with invalid prefixlen, ignoring");
                 return 0;
         }
 
         r = sd_rtnl_message_addr_get_scope(message, &address->scope);
         if (r < 0) {
-                log_warning_link(link,
+                log_link_warning(link,
                                  "rtnl: received address with invalid scope, ignoring");
                 return 0;
         }
 
         r = sd_rtnl_message_addr_get_flags(message, &address->flags);
         if (r < 0) {
-                log_warning_link(link,
+                log_link_warning(link,
                                  "rtnl: received address with invalid flags, ignoring");
                 return 0;
         }
@@ -1413,7 +1414,7 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
                 r = sd_rtnl_message_read_in_addr(message, IFA_LOCAL,
                                                  &address->in_addr.in);
                 if (r < 0) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "rtnl: received address without valid address, ignoring");
                         return 0;
                 }
@@ -1424,7 +1425,7 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
                 r = sd_rtnl_message_read_in6_addr(message, IFA_ADDRESS,
                                                   &address->in_addr.in6);
                 if (r < 0) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "rtnl: received address without valid address, ignoring");
                         return 0;
                 }
@@ -1437,7 +1438,7 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
 
         if (!inet_ntop(address->family, &address->in_addr, buf,
                        INET6_ADDRSTRLEN)) {
-                log_warning_link(link, "could not print address");
+                log_link_warning(link, "could not print address");
                 return 0;
         }
 
@@ -1467,10 +1468,10 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
         switch (type) {
         case RTM_NEWADDR:
                 if (!address_dropped)
-                        log_debug_link(link, "added address: %s/%u (valid for %s)",
+                        log_link_debug(link, "added address: %s/%u (valid for %s)",
                                        buf, address->prefixlen, valid_str);
                 else
-                        log_debug_link(link, "updated address: %s/%u (valid for %s)",
+                        log_link_debug(link, "updated address: %s/%u (valid for %s)",
                                        buf, address->prefixlen, valid_str);
 
                 LIST_PREPEND(addresses, link->addresses, address);
@@ -1481,12 +1482,12 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
                 break;
         case RTM_DELADDR:
                 if (address_dropped) {
-                        log_debug_link(link, "removed address: %s/%u (valid for %s)",
+                        log_link_debug(link, "removed address: %s/%u (valid for %s)",
                                        buf, address->prefixlen, valid_str);
 
                         link_save(link);
                 } else
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "removing non-existent address: %s/%u (valid for %s)",
                                          buf, address->prefixlen, valid_str);
 
@@ -1500,7 +1501,6 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message,
 
 int link_add(Manager *m, sd_rtnl_message *message, Link **ret) {
         Link *link;
-        _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
         _cleanup_udev_device_unref_ struct udev_device *device = NULL;
         char ifindex_str[2 + DECIMAL_STR_MAX(int)];
         int r;
@@ -1516,33 +1516,21 @@ int link_add(Manager *m, sd_rtnl_message *message, Link **ret) {
 
         link = *ret;
 
-        log_debug_link(link, "link %d added", link->ifindex);
-
-        r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, link->ifindex,
-                                     0);
-        if (r < 0)
-                return r;
-
-        r = sd_rtnl_call_async(m->rtnl, req, link_get_address_handler, link, 0,
-                               NULL);
-        if (r < 0)
-                return r;
-
-        link_ref(link);
+        log_link_debug(link, "link %d added", link->ifindex);
 
         if (detect_container(NULL) <= 0) {
                 /* not in a container, udev will be around */
                 sprintf(ifindex_str, "n%d", link->ifindex);
                 device = udev_device_new_from_device_id(m->udev, ifindex_str);
                 if (!device) {
-                        log_warning_link(link,
+                        log_link_warning(link,
                                          "could not find udev device: %m");
                         return -errno;
                 }
 
                 if (udev_device_get_is_initialized(device) <= 0) {
                         /* not yet ready */
-                        log_debug_link(link, "link pending udev initialization...");
+                        log_link_debug(link, "link pending udev initialization...");
                         return 0;
                 }
 
@@ -1574,13 +1562,13 @@ int link_update(Link *link, sd_rtnl_message *m) {
 
         if (link->state == LINK_STATE_LINGER) {
                 link_ref(link);
-                log_info_link(link, "link readded");
+                log_link_info(link, "link readded");
                 link->state = LINK_STATE_ENSLAVING;
         }
 
         r = sd_rtnl_message_read_string(m, IFLA_IFNAME, &ifname);
         if (r >= 0 && !streq(ifname, link->ifname)) {
-                log_info_link(link, "renamed to %s", ifname);
+                log_link_info(link, "renamed to %s", ifname);
 
                 free(link->ifname);
                 link->ifname = strdup(ifname);
@@ -1593,7 +1581,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                 link->mtu = mtu;
                 if (!link->original_mtu) {
                         link->original_mtu = mtu;
-                        log_debug_link(link, "saved original MTU: %"
+                        log_link_debug(link, "saved original MTU: %"
                                        PRIu32, link->original_mtu);
                 }
 
@@ -1601,7 +1589,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                         r = sd_dhcp_client_set_mtu(link->dhcp_client,
                                                    link->mtu);
                         if (r < 0) {
-                                log_warning_link(link,
+                                log_link_warning(link,
                                                  "Could not update MTU in DHCP client: %s",
                                                  strerror(-r));
                                 return r;
@@ -1619,7 +1607,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                         memcpy(link->mac.ether_addr_octet, mac.ether_addr_octet,
                                ETH_ALEN);
 
-                        log_debug_link(link, "MAC address: "
+                        log_link_debug(link, "MAC address: "
                                        "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
                                        mac.ether_addr_octet[0],
                                        mac.ether_addr_octet[1],
@@ -1631,7 +1619,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                         if (link->ipv4ll) {
                                 r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
                                 if (r < 0) {
-                                        log_warning_link(link,
+                                        log_link_warning(link,
                                                          "Could not update MAC address in IPv4LL client: %s",
                                                          strerror(-r));
                                         return r;
@@ -1644,7 +1632,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                                                            sizeof (link->mac),
                                                            ARPHRD_ETHER);
                                 if (r < 0) {
-                                        log_warning_link(link,
+                                        log_link_warning(link,
                                                          "Could not update MAC address in DHCP client: %s",
                                                          strerror(-r));
                                         return r;
@@ -1657,7 +1645,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                                                             sizeof (link->mac),
                                                             ARPHRD_ETHER);
                                 if (r < 0) {
-                                        log_warning_link(link,
+                                        log_link_warning(link,
                                                          "Could not update MAC address in DHCPv6 client: %s",
                                                          strerror(-r));
                                         return r;
@@ -1676,7 +1664,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
         carrier_lost = had_carrier && !link_has_carrier(link);
 
         if (carrier_gained) {
-                log_info_link(link, "gained carrier");
+                log_link_info(link, "gained carrier");
 
                 if (link->network) {
                         r = link_acquire_conf(link);
@@ -1686,7 +1674,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
                         }
                 }
         } else if (carrier_lost) {
-                log_info_link(link, "lost carrier");
+                log_link_info(link, "lost carrier");
 
                 r = link_stop_clients(link);
                 if (r < 0) {
@@ -1857,7 +1845,7 @@ int link_save(Link *link) {
         if (link->dhcp_lease) {
                 assert(link->network);
 
-                r = dhcp_lease_save(link->dhcp_lease, link->lease_file);
+                r = sd_dhcp_lease_save(link->dhcp_lease, link->lease_file);
                 if (r < 0)
                         goto fail;
 
@@ -1878,7 +1866,7 @@ int link_save(Link *link) {
 
         return 0;
 fail:
-        log_error_link(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
+        log_link_error(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
         unlink(link->state_file);
         unlink(temp_path);
         return r;