diff options
Diffstat (limited to 'net/sctp/output.c')
| -rw-r--r-- | net/sctp/output.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c index 01a26ee051e3..d6e1c90cc09a 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -241,10 +241,13 @@ static enum sctp_xmit sctp_packet_bundle_auth(struct sctp_packet *pkt, if (!chunk->auth) return retval; - auth = sctp_make_auth(asoc); + auth = sctp_make_auth(asoc, chunk->shkey->key_id); if (!auth) return retval; + auth->shkey = chunk->shkey; + sctp_auth_shkey_hold(auth->shkey); + retval = __sctp_packet_append_chunk(pkt, auth); if (retval != SCTP_XMIT_OK) @@ -490,7 +493,8 @@ merge: } if (auth) { - sctp_auth_calculate_hmac(tp->asoc, nskb, auth, gfp); + sctp_auth_calculate_hmac(tp->asoc, nskb, auth, + packet->auth->shkey, gfp); /* free auth if no more chunks, or add it back */ if (list_empty(&packet->chunk_list)) sctp_chunk_free(packet->auth); @@ -770,6 +774,16 @@ static enum sctp_xmit sctp_packet_will_fit(struct sctp_packet *packet, enum sctp_xmit retval = SCTP_XMIT_OK; size_t psize, pmtu, maxsize; + /* Don't bundle in this packet if this chunk's auth key doesn't + * match other chunks already enqueued on this packet. Also, + * don't bundle the chunk with auth key if other chunks in this + * packet don't have auth key. + */ + if ((packet->auth && chunk->shkey != packet->auth->shkey) || + (!packet->auth && chunk->shkey && + chunk->chunk_hdr->type != SCTP_CID_AUTH)) + return SCTP_XMIT_PMTU_FULL; + psize = packet->size; if (packet->transport->asoc) pmtu = packet->transport->asoc->pathmtu; |