diff options
| -rw-r--r-- | include/net/sctp/command.h | 1 | ||||
| -rw-r--r-- | net/sctp/outqueue.c | 3 | ||||
| -rw-r--r-- | net/sctp/sm_sideeffect.c | 3 | ||||
| -rw-r--r-- | net/sctp/sm_statefuns.c | 18 |
4 files changed, 25 insertions, 0 deletions
diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h index 10ae2da6f93..35b1e83fb96 100644 --- a/include/net/sctp/command.h +++ b/include/net/sctp/command.h @@ -104,6 +104,7 @@ typedef enum { SCTP_CMD_ADAPTATION_IND, /* generate and send adaptation event */ SCTP_CMD_ASSOC_SHKEY, /* generate the association shared keys */ SCTP_CMD_T1_RETRAN, /* Mark for retransmission after T1 timeout */ + SCTP_CMD_UPDATE_INITTAG, /* Update peer inittag */ SCTP_CMD_LAST } sctp_verb_t; diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index 1bb3c5c35d2..c0714469233 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -793,6 +793,9 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout) break; case SCTP_CID_ABORT: + if (sctp_test_T_bit(chunk)) { + packet->vtag = asoc->c.my_vtag; + } case SCTP_CID_SACK: case SCTP_CID_HEARTBEAT: case SCTP_CID_HEARTBEAT_ACK: diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index 28eb38eb608..a4763fd24fd 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -1536,6 +1536,9 @@ static int sctp_cmd_interpreter(sctp_event_t event_type, error = sctp_auth_asoc_init_active_key(asoc, GFP_ATOMIC); break; + case SCTP_CMD_UPDATE_INITTAG: + asoc->peer.i.init_tag = cmd->obj.u32; + break; default: printk(KERN_WARNING "Impossible command: %u, %p\n", diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index f2ed6473fee..3ef97499df0 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -4144,6 +4144,24 @@ static sctp_disposition_t sctp_sf_abort_violation( goto nomem; if (asoc) { + /* Treat INIT-ACK as a special case during COOKIE-WAIT. */ + if (chunk->chunk_hdr->type == SCTP_CID_INIT_ACK && + !asoc->peer.i.init_tag) { + sctp_initack_chunk_t *initack; + + initack = (sctp_initack_chunk_t *)chunk->chunk_hdr; + if (!sctp_chunk_length_valid(chunk, + sizeof(sctp_initack_chunk_t))) + abort->chunk_hdr->flags |= SCTP_CHUNK_FLAG_T; + else { + unsigned int inittag; + + inittag = ntohl(initack->init_hdr.init_tag); + sctp_add_cmd_sf(commands, SCTP_CMD_UPDATE_INITTAG, + SCTP_U32(inittag)); + } + } + sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort)); SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS); |