diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/input.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/sctp/input.c b/net/sctp/input.c index 704ad19c1565..fc458968fe4b 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -872,6 +872,8 @@ void sctp_transport_hashtable_destroy(void) int sctp_hash_transport(struct sctp_transport *t) { + struct sctp_transport *transport; + struct rhlist_head *tmp, *list; struct sctp_hash_cmp_arg arg; int err; @@ -882,8 +884,19 @@ int sctp_hash_transport(struct sctp_transport *t) arg.paddr = &t->ipaddr; arg.lport = htons(t->asoc->base.bind_addr.port); + list = rhltable_lookup(&sctp_transport_hashtable, &arg, + sctp_hash_params); + + rhl_for_each_entry_rcu(transport, tmp, list, node) + if (transport->asoc->ep == t->asoc->ep) { + err = -EEXIST; + goto out; + } + err = rhltable_insert_key(&sctp_transport_hashtable, &arg, &t->node, sctp_hash_params); + +out: if (err) pr_err_once("insert transport fail, errno %d\n", err); |