diff options
| -rw-r--r-- | net/sctp/stream.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/net/sctp/stream.c b/net/sctp/stream.c index c91d97e5d590..dda53a293986 100644 --- a/net/sctp/stream.c +++ b/net/sctp/stream.c @@ -529,12 +529,21 @@ struct sctp_chunk *sctp_process_strreset_tsnreq( __u16 i; request_seq = ntohl(tsnreq->request_seq); - if (request_seq > asoc->strreset_inseq) { + if (TSN_lt(asoc->strreset_inseq, request_seq) || + TSN_lt(request_seq, asoc->strreset_inseq - 2)) { result = SCTP_STRRESET_ERR_BAD_SEQNO; - goto out; - } else if (request_seq == asoc->strreset_inseq) { - asoc->strreset_inseq++; + goto err; + } else if (TSN_lt(request_seq, asoc->strreset_inseq)) { + i = asoc->strreset_inseq - request_seq - 1; + result = asoc->strreset_result[i]; + if (result == SCTP_STRRESET_PERFORMED) { + next_tsn = asoc->next_tsn; + init_tsn = + sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map) + 1; + } + goto err; } + asoc->strreset_inseq++; if (!(asoc->strreset_enable & SCTP_ENABLE_RESET_ASSOC_REQ)) goto out; @@ -591,6 +600,8 @@ struct sctp_chunk *sctp_process_strreset_tsnreq( next_tsn, GFP_ATOMIC); out: + sctp_update_strreset_result(asoc, result); +err: return sctp_make_strreset_tsnresp(asoc, result, request_seq, next_tsn, init_tsn); } |