networkd: Add bridge port capabilities

This PR adds the configuration switches for multicast flooding, neighbor
suppression and learning of a bridge port.

src/network/networkd-link.c

@@ -1595,12 +1595,30 @@ static int link_set_bridge(Link *link) {
                         return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_UNICAST_FLOOD attribute: %m");
         }
 
+        if (link->network->multicast_flood >= 0) {
+                r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MCAST_FLOOD, link->network->multicast_flood);
+                if (r < 0)
+                        return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MCAST_FLOOD attribute: %m");
+        }
+
         if (link->network->multicast_to_unicast >= 0) {
                 r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MCAST_TO_UCAST, link->network->multicast_to_unicast);
                 if (r < 0)
                         return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MCAST_TO_UCAST attribute: %m");
         }
 
+        if (link->network->neighbor_suppression >= 0) {
+                r = sd_netlink_message_append_u8(req, IFLA_BRPORT_NEIGH_SUPPRESS, link->network->neighbor_suppression);
+                if (r < 0)
+                        return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_NEIGH_SUPPRESS attribute: %m");
+        }
+
+        if (link->network->learning >= 0) {
+                r = sd_netlink_message_append_u8(req, IFLA_BRPORT_LEARNING, link->network->learning);
+                if (r < 0)
+                        return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_LEARNING attribute: %m");
+        }
+
         if (link->network->cost != 0) {
                 r = sd_netlink_message_append_u32(req, IFLA_BRPORT_COST, link->network->cost);
                 if (r < 0)

src/network/networkd-network-gperf.gperf

@@ -170,7 +170,10 @@ Bridge.HairPin,                         config_parse_tristate,
 Bridge.FastLeave,                       config_parse_tristate,                          0,                             offsetof(Network, fast_leave)
 Bridge.AllowPortToBeRoot,               config_parse_tristate,                          0,                             offsetof(Network, allow_port_to_be_root)
 Bridge.UnicastFlood,                    config_parse_tristate,                          0,                             offsetof(Network, unicast_flood)
+Bridge.MulticastFlood,                  config_parse_tristate,                          0,                             offsetof(Network, multicast_flood)
 Bridge.MulticastToUnicast,              config_parse_tristate,                          0,                             offsetof(Network, multicast_to_unicast)
+Bridge.NeighborSuppression,             config_parse_tristate,                          0,                             offsetof(Network, neighbor_suppression)
+Bridge.Learning,                        config_parse_tristate,                          0,                             offsetof(Network, learning)
 Bridge.Priority,                        config_parse_bridge_port_priority,              0,                             offsetof(Network, priority)
 BridgeFDB.MACAddress,                   config_parse_fdb_hwaddr,                        0,                             0
 BridgeFDB.VLANId,                       config_parse_fdb_vlan_id,                       0,                             0

src/network/networkd-network.c

@@ -368,7 +368,10 @@ int network_load_one(Manager *manager, const char *filename) {
                 .fast_leave = -1,
                 .allow_port_to_be_root = -1,
                 .unicast_flood = -1,
+                .multicast_flood = -1,
                 .multicast_to_unicast = -1,
+                .neighbor_suppression = -1,
+                .learning = -1,
                 .priority = LINK_BRIDGE_PORT_PRIORITY_INVALID,
 
                 .lldp_mode = LLDP_MODE_ROUTERS_ONLY,

src/network/networkd-network.h

@@ -179,7 +179,10 @@ struct Network {
         int fast_leave;
         int allow_port_to_be_root;
         int unicast_flood;
+        int multicast_flood;
         int multicast_to_unicast;
+        int neighbor_suppression;
+        int learning;
         uint32_t cost;
         uint16_t priority;