diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index a8b38e123f97..5051317162df 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -377,10 +377,11 @@ typedef struct sctp_sender_hb_info { __u64 hb_nonce; } sctp_sender_hb_info_t; -int sctp_stream_new(struct sctp_association *asoc, gfp_t gfp); -int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp); +int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt, + gfp_t gfp); void sctp_stream_free(struct sctp_stream *stream); void sctp_stream_clear(struct sctp_stream *stream); +void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new); /* What is the current SSN number for this stream? */ #define sctp_ssn_peek(stream, type, sid) \ @@ -1750,7 +1751,7 @@ struct sctp_association { __u32 default_rcv_context; /* Stream arrays */ - struct sctp_stream *stream; + struct sctp_stream stream; /* All outbound chunks go through this structure. */ struct sctp_outq outqueue; diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 95238284c422..288c5e0cda5d 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -246,7 +246,8 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a if (!sctp_ulpq_init(&asoc->ulpq, asoc)) goto fail_init; - if (sctp_stream_new(asoc, gfp)) + if (sctp_stream_init(&asoc->stream, asoc->c.sinit_num_ostreams, + 0, gfp)) goto fail_init; /* Assume that peer would support both address types unless we are @@ -291,7 +292,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a return asoc; stream_free: - sctp_stream_free(asoc->stream); + sctp_stream_free(&asoc->stream); fail_init: sock_put(asoc->base.sk); sctp_endpoint_put(asoc->ep); @@ -365,7 +366,7 @@ void sctp_association_free(struct sctp_association *asoc) sctp_tsnmap_free(&asoc->peer.tsn_map); /* Free stream information. */ - sctp_stream_free(asoc->stream); + sctp_stream_free(&asoc->stream); if (asoc->strreset_chunk) sctp_chunk_free(asoc->strreset_chunk); @@ -1151,7 +1152,7 @@ void sctp_assoc_update(struct sctp_association *asoc, /* Reinitialize SSN for both local streams * and peer's streams. */ - sctp_stream_clear(asoc->stream); + sctp_stream_clear(&asoc->stream); /* Flush the ULP reassembly and ordered queue. * Any data there will now be stale and will @@ -1177,11 +1178,8 @@ void sctp_assoc_update(struct sctp_association *asoc, asoc->ctsn_ack_point = asoc->next_tsn - 1; asoc->adv_peer_ack_point = asoc->ctsn_ack_point; - if (sctp_state(asoc, COOKIE_WAIT)) { - sctp_stream_free(asoc->stream); - asoc->stream = new->stream; - new->stream = NULL; - } + if (sctp_state(asoc, COOKIE_WAIT)) + sctp_stream_update(&asoc->stream, &new->stream); if (!asoc->assoc_id) { /* get a new association id since we don't have one diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c index 697721a7a3f1..81466f6442e8 100644 --- a/net/sctp/chunk.c +++ b/net/sctp/chunk.c @@ -307,7 +307,7 @@ int sctp_chunk_abandoned(struct sctp_chunk *chunk) if (SCTP_PR_TTL_ENABLED(chunk->sinfo.sinfo_flags) && time_after(jiffies, chunk->msg->expires_at)) { struct sctp_stream_out *streamout = - &chunk->asoc->stream->out[chunk->sinfo.sinfo_stream]; + &chunk->asoc->stream.out[chunk->sinfo.sinfo_stream]; if (chunk->sent_count) { chunk->asoc->abandoned_sent[SCTP_PR_INDEX(TTL)]++; @@ -320,7 +320,7 @@ int sctp_chunk_abandoned(struct sctp_chunk *chunk) } else if (SCTP_PR_RTX_ENABLED(chunk->sinfo.sinfo_flags) && chunk->sent_count > chunk->sinfo.sinfo_timetolive) { struct sctp_stream_out *streamout = - &chunk->asoc->stream->out[chunk->sinfo.sinfo_stream]; + &chunk->asoc->stream.out[chunk->sinfo.sinfo_stream]; chunk->asoc->abandoned_sent[SCTP_PR_INDEX(RTX)]++; streamout->abandoned_sent[SCTP_PR_INDEX(RTX)]++; diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index fe4c3d462f6e..20299df163b9 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -363,7 +363,7 @@ static int sctp_prsctp_prune_sent(struct sctp_association *asoc, sctp_insert_list(&asoc->outqueue.abandoned, &chk->transmitted_list); - streamout = &asoc->stream->out[chk->sinfo.sinfo_stream]; + streamout = &asoc->stream.out[chk->sinfo.sinfo_stream]; asoc->sent_cnt_removable--; asoc->abandoned_sent[SCTP_PR_INDEX(PRIO)]++; streamout->abandoned_sent[SCTP_PR_INDEX(PRIO)]++; @@ -400,9 +400,9 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc, q->out_qlen -= chk->skb->len; asoc->sent_cnt_removable--; asoc->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++; - if (chk->sinfo.sinfo_stream < asoc->stream->outcnt) { + if (chk->sinfo.sinfo_stream < asoc->stream.outcnt) { struct sctp_stream_out *streamout = - &asoc->stream->out[chk->sinfo.sinfo_stream]; + &asoc->stream.out[chk->sinfo.sinfo_stream]; streamout->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++; } @@ -1036,7 +1036,7 @@ static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp) /* RFC 2960 6.5 Every DATA chunk MUST carry a valid * stream identifier. */ - if (chunk->sinfo.sinfo_stream >= asoc->stream->outcnt) { + if (chunk->sinfo.sinfo_stream >= asoc->stream.outcnt) { /* Mark as failed send. */ sctp_chunk_fail(chunk, SCTP_ERROR_INV_STRM); @@ -1054,7 +1054,7 @@ static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp) continue; } - if (asoc->stream->out[sid].state == SCTP_STREAM_CLOSED) { + if (asoc->stream.out[sid].state == SCTP_STREAM_CLOSED) { sctp_outq_head_data(q, chunk); goto sctp_flush_out; } diff --git a/net/sctp/proc.c b/net/sctp/proc.c index a0b29d43627f..5a27d0f03df5 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -361,8 +361,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v) sctp_seq_dump_remote_addrs(seq, assoc); seq_printf(seq, "\t%8lu %5d %5d %4d %4d %4d %8d " "%8d %8d %8d %8d", - assoc->hbinterval, assoc->stream->incnt, - assoc->stream->outcnt, assoc->max_retrans, + assoc->hbinterval, assoc->stream.incnt, + assoc->stream.outcnt, assoc->max_retrans, assoc->init_retries, assoc->shutdown_retries, assoc->rtx_data_chunks, atomic_read(&sk->sk_wmem_alloc), diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 92e332e17391..bd439edf2d8a 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -1544,7 +1544,7 @@ void sctp_chunk_assign_ssn(struct sctp_chunk *chunk) /* All fragments will be on the same stream */ sid = ntohs(chunk->subh.data_hdr->stream); - stream = chunk->asoc->stream; + stream = &chunk->asoc->stream; /* Now assign the sequence number to the entire message. * All fragments must have the same stream sequence number. @@ -2454,7 +2454,8 @@ int sctp_process_init(struct sctp_association *asoc, struct sctp_chunk *chunk, * stream sequence number shall be set to 0. */ - if (sctp_stream_init(asoc, gfp)) + if (sctp_stream_init(&asoc->stream, asoc->c.sinit_num_ostreams, + asoc->c.sinit_max_instreams, gfp)) goto clean_up; if (!asoc->temp && sctp_assoc_set_id(asoc, gfp)) diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index f863b5573e42..df73190da761 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -3958,7 +3958,7 @@ sctp_disposition_t sctp_sf_eat_fwd_tsn(struct net *net, /* Silently discard the chunk if stream-id is not valid */ sctp_walk_fwdtsn(skip, chunk) { - if (ntohs(skip->stream) >= asoc->stream->incnt) + if (ntohs(skip->stream) >= asoc->stream.incnt) goto discard_noforce; } @@ -4029,7 +4029,7 @@ sctp_disposition_t sctp_sf_eat_fwd_tsn_fast( /* Silently discard the chunk if stream-id is not valid */ sctp_walk_fwdtsn(skip, chunk) { - if (ntohs(skip->stream) >= asoc->stream->incnt) + if (ntohs(skip->stream) >= asoc->stream.incnt) goto gen_shutdown; } @@ -6365,7 +6365,7 @@ static int sctp_eat_data(const struct sctp_association *asoc, * and discard the DATA chunk. */ sid = ntohs(data_hdr->stream); - if (sid >= asoc->stream->incnt) { + if (sid >= asoc->stream.incnt) { /* Mark tsn as received even though we drop it */ sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_TSN, SCTP_U32(tsn)); @@ -6387,7 +6387,7 @@ static int sctp_eat_data(const struct sctp_association *asoc, * and is invalid. */ ssn = ntohs(data_hdr->ssn); - if (ordered && SSN_lt(ssn, sctp_ssn_peek(asoc->stream, in, sid))) + if (ordered && SSN_lt(ssn, sctp_ssn_peek(&asoc->stream, in, sid))) return SCTP_IERROR_PROTO_VIOLATION; /* Send the data up to the user. Note: Schedule the diff --git a/net/sctp/socket.c b/net/sctp/socket.c index f16c8d97b7f3..0822046e4f3f 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1920,7 +1920,7 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len) } /* Check for invalid stream. */ - if (sinfo->sinfo_stream >= asoc->stream->outcnt) { + if (sinfo->sinfo_stream >= asoc->stream.outcnt) { err = -EINVAL; goto out_free; } @@ -4497,8 +4497,8 @@ int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc, info->sctpi_rwnd = asoc->a_rwnd; info->sctpi_unackdata = asoc->unack_data; info->sctpi_penddata = sctp_tsnmap_pending(&asoc->peer.tsn_map); - info->sctpi_instrms = asoc->stream->incnt; - info->sctpi_outstrms = asoc->stream->outcnt; + info->sctpi_instrms = asoc->stream.incnt; + info->sctpi_outstrms = asoc->stream.outcnt; list_for_each(pos, &asoc->base.inqueue.in_chunk_list) info->sctpi_inqueue++; list_for_each(pos, &asoc->outqueue.out_chunk_list) @@ -4727,8 +4727,8 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, status.sstat_unackdata = asoc->unack_data; status.sstat_penddata = sctp_tsnmap_pending(&asoc->peer.tsn_map); - status.sstat_instrms = asoc->stream->incnt; - status.sstat_outstrms = asoc->stream->outcnt; + status.sstat_instrms = asoc->stream.incnt; + status.sstat_outstrms = asoc->stream.outcnt; status.sstat_fragmentation_point = asoc->frag_point; status.sstat_primary.spinfo_assoc_id = sctp_assoc2id(transport->asoc); memcpy(&status.sstat_primary.spinfo_address, &transport->ipaddr, @@ -6600,10 +6600,10 @@ static int sctp_getsockopt_pr_streamstatus(struct sock *sk, int len, goto out; asoc = sctp_id2assoc(sk, params.sprstat_assoc_id); - if (!asoc || params.sprstat_sid >= asoc->stream->outcnt) + if (!asoc || params.sprstat_sid >= asoc->stream.outcnt) goto out; - streamout = &asoc->stream->out[params.sprstat_sid]; + streamout = &asoc->stream.out[params.sprstat_sid]; if (policy == SCTP_PR_SCTP_NONE) { params.sprstat_abandoned_unsent = 0; params.sprstat_abandoned_sent = 0; diff --git a/net/sctp/stream.c b/net/sctp/stream.c index dda53a293986..82e6d40052a8 100644 --- a/net/sctp/stream.c +++ b/net/sctp/stream.c @@ -35,70 +35,43 @@ #include #include -int sctp_stream_new(struct sctp_association *asoc, gfp_t gfp) +int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt, + gfp_t gfp) { - struct sctp_stream *stream; - int i; - - stream = kzalloc(sizeof(*stream), gfp); - if (!stream) - return -ENOMEM; - - stream->outcnt = asoc->c.sinit_num_ostreams; - stream->out = kcalloc(stream->outcnt, sizeof(*stream->out), gfp); - if (!stream->out) { - kfree(stream); - return -ENOMEM; - } - for (i = 0; i < stream->outcnt; i++) - stream->out[i].state = SCTP_STREAM_OPEN; - - asoc->stream = stream; - - return 0; -} - -int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp) -{ - struct sctp_stream *stream = asoc->stream; int i; /* Initial stream->out size may be very big, so free it and alloc * a new one with new outcnt to save memory. */ kfree(stream->out); - stream->outcnt = asoc->c.sinit_num_ostreams; - stream->out = kcalloc(stream->outcnt, sizeof(*stream->out), gfp); - if (!stream->out) - goto nomem; + stream->out = kcalloc(outcnt, sizeof(*stream->out), gfp); + if (!stream->out) + return -ENOMEM; + + stream->outcnt = outcnt; for (i = 0; i < stream->outcnt; i++) stream->out[i].state = SCTP_STREAM_OPEN; - stream->incnt = asoc->c.sinit_max_instreams; - stream->in = kcalloc(stream->incnt, sizeof(*stream->in), gfp); + if (!incnt) + return 0; + + stream->in = kcalloc(incnt, sizeof(*stream->in), gfp); if (!stream->in) { kfree(stream->out); - goto nomem; + stream->out = NULL; + return -ENOMEM; } + stream->incnt = incnt; + return 0; - -nomem: - asoc->stream = NULL; - kfree(stream); - - return -ENOMEM; } void sctp_stream_free(struct sctp_stream *stream) { - if (unlikely(!stream)) - return; - kfree(stream->out); kfree(stream->in); - kfree(stream); } void sctp_stream_clear(struct sctp_stream *stream) @@ -112,6 +85,19 @@ void sctp_stream_clear(struct sctp_stream *stream) stream->in[i].ssn = 0; } +void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new) +{ + sctp_stream_free(stream); + + stream->out = new->out; + stream->in = new->in; + stream->outcnt = new->outcnt; + stream->incnt = new->incnt; + + new->out = NULL; + new->in = NULL; +} + static int sctp_send_reconf(struct sctp_association *asoc, struct sctp_chunk *chunk) { @@ -128,7 +114,7 @@ static int sctp_send_reconf(struct sctp_association *asoc, int sctp_send_reset_streams(struct sctp_association *asoc, struct sctp_reset_streams *params) { - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; __u16 i, str_nums, *str_list; struct sctp_chunk *chunk; int retval = -EINVAL; @@ -214,6 +200,7 @@ int sctp_send_reset_streams(struct sctp_association *asoc, int sctp_send_reset_assoc(struct sctp_association *asoc) { + struct sctp_stream *stream = &asoc->stream; struct sctp_chunk *chunk = NULL; int retval; __u16 i; @@ -230,8 +217,8 @@ int sctp_send_reset_assoc(struct sctp_association *asoc) return -ENOMEM; /* Block further xmit of data until this request is completed */ - for (i = 0; i < asoc->stream->outcnt; i++) - asoc->stream->out[i].state = SCTP_STREAM_CLOSED; + for (i = 0; i < stream->outcnt; i++) + stream->out[i].state = SCTP_STREAM_CLOSED; asoc->strreset_chunk = chunk; sctp_chunk_hold(asoc->strreset_chunk); @@ -241,8 +228,8 @@ int sctp_send_reset_assoc(struct sctp_association *asoc) sctp_chunk_put(asoc->strreset_chunk); asoc->strreset_chunk = NULL; - for (i = 0; i < asoc->stream->outcnt; i++) - asoc->stream->out[i].state = SCTP_STREAM_OPEN; + for (i = 0; i < stream->outcnt; i++) + stream->out[i].state = SCTP_STREAM_OPEN; return retval; } @@ -255,7 +242,7 @@ int sctp_send_reset_assoc(struct sctp_association *asoc) int sctp_send_add_streams(struct sctp_association *asoc, struct sctp_add_streams *params) { - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; struct sctp_chunk *chunk = NULL; int retval = -ENOMEM; __u32 outcnt, incnt; @@ -357,7 +344,7 @@ struct sctp_chunk *sctp_process_strreset_outreq( struct sctp_ulpevent **evp) { struct sctp_strreset_outreq *outreq = param.v; - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; __u16 i, nums, flags = 0, *str_p = NULL; __u32 result = SCTP_STRRESET_DENIED; __u32 request_seq; @@ -449,7 +436,7 @@ struct sctp_chunk *sctp_process_strreset_inreq( struct sctp_ulpevent **evp) { struct sctp_strreset_inreq *inreq = param.v; - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; __u32 result = SCTP_STRRESET_DENIED; struct sctp_chunk *chunk = NULL; __u16 i, nums, *str_p; @@ -523,7 +510,7 @@ struct sctp_chunk *sctp_process_strreset_tsnreq( { __u32 init_tsn = 0, next_tsn = 0, max_tsn_seen; struct sctp_strreset_tsnreq *tsnreq = param.v; - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; __u32 result = SCTP_STRRESET_DENIED; __u32 request_seq; __u16 i; @@ -612,7 +599,7 @@ struct sctp_chunk *sctp_process_strreset_addstrm_out( struct sctp_ulpevent **evp) { struct sctp_strreset_addstrm *addstrm = param.v; - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; __u32 result = SCTP_STRRESET_DENIED; struct sctp_stream_in *streamin; __u32 request_seq, incnt; @@ -687,7 +674,7 @@ struct sctp_chunk *sctp_process_strreset_addstrm_in( struct sctp_ulpevent **evp) { struct sctp_strreset_addstrm *addstrm = param.v; - struct sctp_stream *stream = asoc->stream; + struct sctp_stream *stream = &asoc->stream; __u32 result = SCTP_STRRESET_DENIED; struct sctp_stream_out *streamout; struct sctp_chunk *chunk = NULL; @@ -758,8 +745,8 @@ struct sctp_chunk *sctp_process_strreset_resp( union sctp_params param, struct sctp_ulpevent **evp) { + struct sctp_stream *stream = &asoc->stream; struct sctp_strreset_resp *resp = param.v; - struct sctp_stream *stream = asoc->stream; struct sctp_transport *t; __u16 i, nums, flags = 0; sctp_paramhdr_t *req; diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c index aa3624d50278..25f7e4140566 100644 --- a/net/sctp/ulpqueue.c +++ b/net/sctp/ulpqueue.c @@ -764,7 +764,7 @@ static void sctp_ulpq_retrieve_ordered(struct sctp_ulpq *ulpq, __u16 sid, csid, cssn; sid = event->stream; - stream = ulpq->asoc->stream; + stream = &ulpq->asoc->stream; event_list = (struct sk_buff_head *) sctp_event2skb(event)->prev; @@ -858,7 +858,7 @@ static struct sctp_ulpevent *sctp_ulpq_order(struct sctp_ulpq *ulpq, /* Note: The stream ID must be verified before this routine. */ sid = event->stream; ssn = event->ssn; - stream = ulpq->asoc->stream; + stream = &ulpq->asoc->stream; /* Is this the expected SSN for this stream ID? */ if (ssn != sctp_ssn_peek(stream, in, sid)) { @@ -893,7 +893,7 @@ static void sctp_ulpq_reap_ordered(struct sctp_ulpq *ulpq, __u16 sid) struct sk_buff_head *lobby = &ulpq->lobby; __u16 csid, cssn; - stream = ulpq->asoc->stream; + stream = &ulpq->asoc->stream; /* We are holding the chunks by stream, by SSN. */ skb_queue_head_init(&temp); @@ -958,7 +958,7 @@ void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn) struct sctp_stream *stream; /* Note: The stream ID must be verified before this routine. */ - stream = ulpq->asoc->stream; + stream = &ulpq->asoc->stream; /* Is this an old SSN? If so ignore. */ if (SSN_lt(ssn, sctp_ssn_peek(stream, in, sid)))