diff options
| -rw-r--r-- | net/bridge/br_fdb.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 68def3b7fb49..c8e7861b88b0 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -558,19 +558,28 @@ skip: /* Create new static fdb entry */ static int fdb_add_entry(struct net_bridge_port *source, const __u8 *addr, - __u16 state) + __u16 state, __u16 flags) { struct net_bridge *br = source->br; struct hlist_head *head = &br->hash[br_mac_hash(addr)]; struct net_bridge_fdb_entry *fdb; fdb = fdb_find(head, addr); - if (fdb) - return -EEXIST; + if (fdb == NULL) { + if (!(flags & NLM_F_CREATE)) + return -ENOENT; - fdb = fdb_create(head, source, addr); - if (!fdb) - return -ENOMEM; + fdb = fdb_create(head, source, addr); + if (!fdb) + return -ENOMEM; + } else { + if (flags & NLM_F_EXCL) + return -EEXIST; + + if (flags & NLM_F_REPLACE) + fdb->updated = fdb->used = jiffies; + fdb->is_local = fdb->is_static = 0; + } if (state & NUD_PERMANENT) fdb->is_local = fdb->is_static = 1; @@ -626,7 +635,7 @@ int br_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) } spin_lock_bh(&p->br->hash_lock); - err = fdb_add_entry(p, addr, ndm->ndm_state); + err = fdb_add_entry(p, addr, ndm->ndm_state, nlh->nlmsg_flags); spin_unlock_bh(&p->br->hash_lock); return err; |