static void
mac_create(switchlink_mac_addr_t mac_addr, switchlink_handle_t bridge_h,
switchlink_handle_t intf_h) {
switchlink_handle_t old_intf_h;
switchlink_db_status_t status;
status = switchlink_db_mac_get_intf(mac_addr, bridge_h, &old_intf_h);
if (status == SWITCHLINK_DB_STATUS_SUCCESS) {
if (old_intf_h != intf_h) {
switchlink_mac_update(mac_addr, bridge_h, intf_h);
switchlink_db_mac_set_intf(mac_addr, bridge_h, intf_h);
return;
}
}
switchlink_mac_create(mac_addr, bridge_h, intf_h);
switchlink_db_mac_add(mac_addr, bridge_h, intf_h);
}
void
switchlink_linux_mac_update(switchlink_mac_addr_t mac_addr,
switchlink_handle_t bridge_h,
switchlink_handle_t intf_h, bool create) {
switchlink_db_status_t status;
uint32_t ifindex;
if (!create) {
status = switchlink_db_mac_get_intf(mac_addr, bridge_h, &intf_h);
if (status != SWITCHLINK_DB_STATUS_SUCCESS) {
assert(false);
return;
}
}
status = switchlink_db_interface_get_ifindex(intf_h, &ifindex);
if (status != SWITCHLINK_DB_STATUS_SUCCESS) {
assert(false);
return;
}
struct nl_sock *nlsk = switchlink_get_nl_sock();
if (!nlsk) {
return;
}
struct nl_addr *nl_addr = nl_addr_build(AF_LLC, mac_addr, ETH_ALEN);
struct rtnl_neigh *rtnl_neigh = rtnl_neigh_alloc();
rtnl_neigh_set_ifindex(rtnl_neigh, ifindex);
rtnl_neigh_set_lladdr(rtnl_neigh, nl_addr);
rtnl_neigh_set_state(rtnl_neigh, rtnl_neigh_str2state("permanent"));
rtnl_neigh_set_family(rtnl_neigh, AF_BRIDGE);
if (create) {
status = switchlink_db_mac_add(mac_addr, bridge_h, intf_h);
assert(status == SWITCHLINK_DB_STATUS_SUCCESS);
rtnl_neigh_add(nlsk, rtnl_neigh, NLM_F_CREATE|NLM_F_REPLACE);
} else {
status = switchlink_db_mac_delete(mac_addr, bridge_h);
assert(status == SWITCHLINK_DB_STATUS_SUCCESS);
rtnl_neigh_delete(nlsk, rtnl_neigh, 0);
}
rtnl_neigh_put(rtnl_neigh);
nl_addr_put(nl_addr);
}
static void
mac_create(switchlink_mac_addr_t mac_addr, switchlink_handle_t bridge_h,
switchlink_handle_t intf_h) {
switchlink_handle_t old_intf_h;
switchlink_db_status_t status;
status = switchlink_db_mac_get_intf(mac_addr, bridge_h, &old_intf_h);
if (status == SWITCHLINK_DB_STATUS_SUCCESS) {
if (old_intf_h == intf_h) {
// no change
return;
} else {
// update handled as delete followed by add
mac_delete(mac_addr, bridge_h);
}
}
switchlink_mac_create(mac_addr, bridge_h, intf_h);
switchlink_db_mac_add(mac_addr, bridge_h, intf_h);
}
