diff options
Diffstat (limited to 'net/sctp/auth.c')
| -rw-r--r-- | net/sctp/auth.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/sctp/auth.c b/net/sctp/auth.c index a073123fc485..e64630cd3331 100644 --- a/net/sctp/auth.c +++ b/net/sctp/auth.c @@ -992,6 +992,20 @@ int sctp_auth_deact_key_id(struct sctp_endpoint *ep, if (!found) return -EINVAL; + /* refcnt == 1 and !list_empty mean it's not being used anywhere + * and deactivated will be set, so it's time to notify userland + * that this shkey can be freed. + */ + if (asoc && !list_empty(&key->key_list) && + refcount_read(&key->refcnt) == 1) { + struct sctp_ulpevent *ev; + + ev = sctp_ulpevent_make_authkey(asoc, key->key_id, + SCTP_AUTH_FREE_KEY, GFP_KERNEL); + if (ev) + asoc->stream.si->enqueue_event(&asoc->ulpq, ev); + } + key->deactivated = 1; return 0; |