diff options
Diffstat (limited to 'net/bridge/br_fdb.c')
-rw-r--r-- | net/bridge/br_fdb.c | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 2b862cffc03a..835cec1e5a03 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -780,7 +780,7 @@ int br_fdb_replay(const struct net_device *br_dev, const struct net_device *dev, struct net_device *dst_dev; dst_dev = dst ? dst->dev : br->dev; - if (dst_dev != br_dev && dst_dev != dev) + if (dst_dev && dst_dev != dev) continue; err = br_fdb_replay_one(nb, fdb, dst_dev, action, ctx); @@ -1019,7 +1019,8 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source, static int __br_fdb_add(struct ndmsg *ndm, struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, - u16 nlh_flags, u16 vid, struct nlattr *nfea_tb[]) + u16 nlh_flags, u16 vid, struct nlattr *nfea_tb[], + struct netlink_ext_ack *extack) { int err = 0; @@ -1038,7 +1039,15 @@ static int __br_fdb_add(struct ndmsg *ndm, struct net_bridge *br, rcu_read_unlock(); local_bh_enable(); } else if (ndm->ndm_flags & NTF_EXT_LEARNED) { - err = br_fdb_external_learn_add(br, p, addr, vid, true); + if (!p && !(ndm->ndm_state & NUD_PERMANENT)) { + NL_SET_ERR_MSG_MOD(extack, + "FDB entry towards bridge must be permanent"); + return -EINVAL; + } + + err = br_fdb_external_learn_add(br, p, addr, vid, + ndm->ndm_state & NUD_PERMANENT, + true); } else { spin_lock_bh(&br->hash_lock); err = fdb_add_entry(br, p, addr, ndm, nlh_flags, vid, nfea_tb); @@ -1110,9 +1119,11 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], } /* VID was specified, so use it. */ - err = __br_fdb_add(ndm, br, p, addr, nlh_flags, vid, nfea_tb); + err = __br_fdb_add(ndm, br, p, addr, nlh_flags, vid, nfea_tb, + extack); } else { - err = __br_fdb_add(ndm, br, p, addr, nlh_flags, 0, nfea_tb); + err = __br_fdb_add(ndm, br, p, addr, nlh_flags, 0, nfea_tb, + extack); if (err || !vg || !vg->num_vlans) goto out; @@ -1124,7 +1135,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], if (!br_vlan_should_use(v)) continue; err = __br_fdb_add(ndm, br, p, addr, nlh_flags, v->vid, - nfea_tb); + nfea_tb, extack); if (err) goto out; } @@ -1264,7 +1275,7 @@ void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p) } int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, - const unsigned char *addr, u16 vid, + const unsigned char *addr, u16 vid, bool is_local, bool swdev_notify) { struct net_bridge_fdb_entry *fdb; @@ -1281,6 +1292,10 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, if (swdev_notify) flags |= BIT(BR_FDB_ADDED_BY_USER); + + if (is_local) + flags |= BIT(BR_FDB_LOCAL); + fdb = fdb_create(br, p, addr, vid, flags); if (!fdb) { err = -ENOMEM; @@ -1307,6 +1322,9 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, if (swdev_notify) set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags); + if (is_local) + set_bit(BR_FDB_LOCAL, &fdb->flags); + if (modified) fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify); } |