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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 16:40:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 16:40:27 -0700
commit8d65b08debc7e62b2c6032d7fe7389d895b92cbc (patch)
tree0c3141b60c3a03cc32742b5750c5e763b9dae489 /net/sctp/stream.c
parent5a0387a8a8efb90ae7fea1e2e5c62de3efa74691 (diff)
parent5d15af6778b8e4ed1fd41b040283af278e7a9a72 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Millar: "Here are some highlights from the 2065 networking commits that happened this development cycle: 1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri) 2) Add a generic XDP driver, so that anyone can test XDP even if they lack a networking device whose driver has explicit XDP support (me). 3) Sparc64 now has an eBPF JIT too (me) 4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei Starovoitov) 5) Make netfitler network namespace teardown less expensive (Florian Westphal) 6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana) 7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger) 8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky) 9) Multiqueue support in stmmac driver (Joao Pinto) 10) Remove TCP timewait recycling, it never really could possibly work well in the real world and timestamp randomization really zaps any hint of usability this feature had (Soheil Hassas Yeganeh) 11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay Aleksandrov) 12) Add socket busy poll support to epoll (Sridhar Samudrala) 13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso, and several others) 14) IPSEC hw offload infrastructure (Steffen Klassert)" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits) tipc: refactor function tipc_sk_recv_stream() tipc: refactor function tipc_sk_recvmsg() net: thunderx: Optimize page recycling for XDP net: thunderx: Support for XDP header adjustment net: thunderx: Add support for XDP_TX net: thunderx: Add support for XDP_DROP net: thunderx: Add basic XDP support net: thunderx: Cleanup receive buffer allocation net: thunderx: Optimize CQE_TX handling net: thunderx: Optimize RBDR descriptor handling net: thunderx: Support for page recycling ipx: call ipxitf_put() in ioctl error path net: sched: add helpers to handle extended actions qed*: Fix issues in the ptp filter config implementation. qede: Fix concurrency issue in PTP Tx path processing. stmmac: Add support for SIMATIC IOT2000 platform net: hns: fix ethtool_get_strings overflow in hns driver tcp: fix wraparound issue in tcp_lp bpf, arm64: fix jit branch offset related to ldimm64 bpf, arm64: implement jiting of BPF_XADD ...
Diffstat (limited to 'net/sctp/stream.c')
-rw-r--r--net/sctp/stream.c464
1 files changed, 433 insertions, 31 deletions
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index bbed997e1c5f..dda53a293986 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -294,18 +294,6 @@ int sctp_send_add_streams(struct sctp_association *asoc,
stream->out = streamout;
}
- if (in) {
- struct sctp_stream_in *streamin;
-
- streamin = krealloc(stream->in, incnt * sizeof(*streamin),
- GFP_KERNEL);
- if (!streamin)
- goto out;
-
- memset(streamin + stream->incnt, 0, in * sizeof(*streamin));
- stream->in = streamin;
- }
-
chunk = sctp_make_strreset_addstrm(asoc, out, in);
if (!chunk)
goto out;
@@ -330,13 +318,14 @@ out:
}
static sctp_paramhdr_t *sctp_chunk_lookup_strreset_param(
- struct sctp_association *asoc, __u32 resp_seq)
+ struct sctp_association *asoc, __u32 resp_seq,
+ __be16 type)
{
struct sctp_chunk *chunk = asoc->strreset_chunk;
struct sctp_reconf_chunk *hdr;
union sctp_params param;
- if (ntohl(resp_seq) != asoc->strreset_outseq || !chunk)
+ if (!chunk)
return NULL;
hdr = (struct sctp_reconf_chunk *)chunk->chunk_hdr;
@@ -347,13 +336,21 @@ static sctp_paramhdr_t *sctp_chunk_lookup_strreset_param(
*/
struct sctp_strreset_tsnreq *req = param.v;
- if (req->request_seq == resp_seq)
+ if ((!resp_seq || req->request_seq == resp_seq) &&
+ (!type || type == req->param_hdr.type))
return param.v;
}
return NULL;
}
+static void sctp_update_strreset_result(struct sctp_association *asoc,
+ __u32 result)
+{
+ asoc->strreset_result[1] = asoc->strreset_result[0];
+ asoc->strreset_result[0] = result;
+}
+
struct sctp_chunk *sctp_process_strreset_outreq(
struct sctp_association *asoc,
union sctp_params param,
@@ -370,15 +367,19 @@ struct sctp_chunk *sctp_process_strreset_outreq(
if (ntohl(outreq->send_reset_at_tsn) >
sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map)) {
result = SCTP_STRRESET_IN_PROGRESS;
- goto out;
+ goto err;
}
- 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];
+ goto err;
}
+ asoc->strreset_inseq++;
/* Check strreset_enable after inseq inc, as sender cannot tell
* the peer doesn't enable strreset after receiving response with
@@ -388,13 +389,9 @@ struct sctp_chunk *sctp_process_strreset_outreq(
goto out;
if (asoc->strreset_chunk) {
- sctp_paramhdr_t *param_hdr;
- struct sctp_transport *t;
-
- param_hdr = sctp_chunk_lookup_strreset_param(
- asoc, outreq->response_seq);
- if (!param_hdr || param_hdr->type !=
- SCTP_PARAM_RESET_IN_REQUEST) {
+ if (!sctp_chunk_lookup_strreset_param(
+ asoc, outreq->response_seq,
+ SCTP_PARAM_RESET_IN_REQUEST)) {
/* same process with outstanding isn't 0 */
result = SCTP_STRRESET_ERR_IN_PROGRESS;
goto out;
@@ -404,6 +401,8 @@ struct sctp_chunk *sctp_process_strreset_outreq(
asoc->strreset_outseq++;
if (!asoc->strreset_outstanding) {
+ struct sctp_transport *t;
+
t = asoc->strreset_chunk->transport;
if (del_timer(&t->reconf_timer))
sctp_transport_put(t);
@@ -439,6 +438,8 @@ struct sctp_chunk *sctp_process_strreset_outreq(
GFP_ATOMIC);
out:
+ sctp_update_strreset_result(asoc, result);
+err:
return sctp_make_strreset_resp(asoc, result, request_seq);
}
@@ -455,12 +456,18 @@ struct sctp_chunk *sctp_process_strreset_inreq(
__u32 request_seq;
request_seq = ntohl(inreq->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)
+ return NULL;
+ goto err;
}
+ asoc->strreset_inseq++;
if (!(asoc->strreset_enable & SCTP_ENABLE_RESET_STREAM_REQ))
goto out;
@@ -495,12 +502,407 @@ struct sctp_chunk *sctp_process_strreset_inreq(
asoc->strreset_outstanding = 1;
sctp_chunk_hold(asoc->strreset_chunk);
+ result = SCTP_STRRESET_PERFORMED;
+
*evp = sctp_ulpevent_make_stream_reset_event(asoc,
SCTP_STREAM_RESET_INCOMING_SSN, nums, str_p, GFP_ATOMIC);
out:
+ sctp_update_strreset_result(asoc, result);
+err:
if (!chunk)
chunk = sctp_make_strreset_resp(asoc, result, request_seq);
return chunk;
}
+
+struct sctp_chunk *sctp_process_strreset_tsnreq(
+ struct sctp_association *asoc,
+ union sctp_params param,
+ struct sctp_ulpevent **evp)
+{
+ __u32 init_tsn = 0, next_tsn = 0, max_tsn_seen;
+ struct sctp_strreset_tsnreq *tsnreq = param.v;
+ struct sctp_stream *stream = asoc->stream;
+ __u32 result = SCTP_STRRESET_DENIED;
+ __u32 request_seq;
+ __u16 i;
+
+ request_seq = ntohl(tsnreq->request_seq);
+ if (TSN_lt(asoc->strreset_inseq, request_seq) ||
+ TSN_lt(request_seq, asoc->strreset_inseq - 2)) {
+ result = SCTP_STRRESET_ERR_BAD_SEQNO;
+ 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;
+
+ if (asoc->strreset_outstanding) {
+ result = SCTP_STRRESET_ERR_IN_PROGRESS;
+ goto out;
+ }
+
+ /* G3: The same processing as though a SACK chunk with no gap report
+ * and a cumulative TSN ACK of the Sender's Next TSN minus 1 were
+ * received MUST be performed.
+ */
+ max_tsn_seen = sctp_tsnmap_get_max_tsn_seen(&asoc->peer.tsn_map);
+ sctp_ulpq_reasm_flushtsn(&asoc->ulpq, max_tsn_seen);
+ sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
+
+ /* G1: Compute an appropriate value for the Receiver's Next TSN -- the
+ * TSN that the peer should use to send the next DATA chunk. The
+ * value SHOULD be the smallest TSN not acknowledged by the
+ * receiver of the request plus 2^31.
+ */
+ init_tsn = sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map) + (1 << 31);
+ sctp_tsnmap_init(&asoc->peer.tsn_map, SCTP_TSN_MAP_INITIAL,
+ init_tsn, GFP_ATOMIC);
+
+ /* G4: The same processing as though a FWD-TSN chunk (as defined in
+ * [RFC3758]) with all streams affected and a new cumulative TSN
+ * ACK of the Receiver's Next TSN minus 1 were received MUST be
+ * performed.
+ */
+ sctp_outq_free(&asoc->outqueue);
+
+ /* G2: Compute an appropriate value for the local endpoint's next TSN,
+ * i.e., the next TSN assigned by the receiver of the SSN/TSN reset
+ * chunk. The value SHOULD be the highest TSN sent by the receiver
+ * of the request plus 1.
+ */
+ next_tsn = asoc->next_tsn;
+ asoc->ctsn_ack_point = next_tsn - 1;
+ asoc->adv_peer_ack_point = asoc->ctsn_ack_point;
+
+ /* G5: The next expected and outgoing SSNs MUST be reset to 0 for all
+ * incoming and outgoing streams.
+ */
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].ssn = 0;
+ for (i = 0; i < stream->incnt; i++)
+ stream->in[i].ssn = 0;
+
+ result = SCTP_STRRESET_PERFORMED;
+
+ *evp = sctp_ulpevent_make_assoc_reset_event(asoc, 0, init_tsn,
+ 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);
+}
+
+struct sctp_chunk *sctp_process_strreset_addstrm_out(
+ struct sctp_association *asoc,
+ union sctp_params param,
+ struct sctp_ulpevent **evp)
+{
+ struct sctp_strreset_addstrm *addstrm = param.v;
+ struct sctp_stream *stream = asoc->stream;
+ __u32 result = SCTP_STRRESET_DENIED;
+ struct sctp_stream_in *streamin;
+ __u32 request_seq, incnt;
+ __u16 in, i;
+
+ request_seq = ntohl(addstrm->request_seq);
+ if (TSN_lt(asoc->strreset_inseq, request_seq) ||
+ TSN_lt(request_seq, asoc->strreset_inseq - 2)) {
+ result = SCTP_STRRESET_ERR_BAD_SEQNO;
+ goto err;
+ } else if (TSN_lt(request_seq, asoc->strreset_inseq)) {
+ i = asoc->strreset_inseq - request_seq - 1;
+ result = asoc->strreset_result[i];
+ goto err;
+ }
+ asoc->strreset_inseq++;
+
+ if (!(asoc->strreset_enable & SCTP_ENABLE_CHANGE_ASSOC_REQ))
+ goto out;
+
+ if (asoc->strreset_chunk) {
+ if (!sctp_chunk_lookup_strreset_param(
+ asoc, 0, SCTP_PARAM_RESET_ADD_IN_STREAMS)) {
+ /* same process with outstanding isn't 0 */
+ result = SCTP_STRRESET_ERR_IN_PROGRESS;
+ goto out;
+ }
+
+ asoc->strreset_outstanding--;
+ asoc->strreset_outseq++;
+
+ if (!asoc->strreset_outstanding) {
+ struct sctp_transport *t;
+
+ t = asoc->strreset_chunk->transport;
+ if (del_timer(&t->reconf_timer))
+ sctp_transport_put(t);
+
+ sctp_chunk_put(asoc->strreset_chunk);
+ asoc->strreset_chunk = NULL;
+ }
+ }
+
+ in = ntohs(addstrm->number_of_streams);
+ incnt = stream->incnt + in;
+ if (!in || incnt > SCTP_MAX_STREAM)
+ goto out;
+
+ streamin = krealloc(stream->in, incnt * sizeof(*streamin),
+ GFP_ATOMIC);
+ if (!streamin)
+ goto out;
+
+ memset(streamin + stream->incnt, 0, in * sizeof(*streamin));
+ stream->in = streamin;
+ stream->incnt = incnt;
+
+ result = SCTP_STRRESET_PERFORMED;
+
+ *evp = sctp_ulpevent_make_stream_change_event(asoc,
+ 0, ntohs(addstrm->number_of_streams), 0, GFP_ATOMIC);
+
+out:
+ sctp_update_strreset_result(asoc, result);
+err:
+ return sctp_make_strreset_resp(asoc, result, request_seq);
+}
+
+struct sctp_chunk *sctp_process_strreset_addstrm_in(
+ struct sctp_association *asoc,
+ union sctp_params param,
+ struct sctp_ulpevent **evp)
+{
+ struct sctp_strreset_addstrm *addstrm = param.v;
+ struct sctp_stream *stream = asoc->stream;
+ __u32 result = SCTP_STRRESET_DENIED;
+ struct sctp_stream_out *streamout;
+ struct sctp_chunk *chunk = NULL;
+ __u32 request_seq, outcnt;
+ __u16 out, i;
+
+ request_seq = ntohl(addstrm->request_seq);
+ if (TSN_lt(asoc->strreset_inseq, request_seq) ||
+ TSN_lt(request_seq, asoc->strreset_inseq - 2)) {
+ result = SCTP_STRRESET_ERR_BAD_SEQNO;
+ 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)
+ return NULL;
+ goto err;
+ }
+ asoc->strreset_inseq++;
+
+ if (!(asoc->strreset_enable & SCTP_ENABLE_CHANGE_ASSOC_REQ))
+ goto out;
+
+ if (asoc->strreset_outstanding) {
+ result = SCTP_STRRESET_ERR_IN_PROGRESS;
+ goto out;
+ }
+
+ out = ntohs(addstrm->number_of_streams);
+ outcnt = stream->outcnt + out;
+ if (!out || outcnt > SCTP_MAX_STREAM)
+ goto out;
+
+ streamout = krealloc(stream->out, outcnt * sizeof(*streamout),
+ GFP_ATOMIC);
+ if (!streamout)
+ goto out;
+
+ memset(streamout + stream->outcnt, 0, out * sizeof(*streamout));
+ stream->out = streamout;
+
+ chunk = sctp_make_strreset_addstrm(asoc, out, 0);
+ if (!chunk)
+ goto out;
+
+ asoc->strreset_chunk = chunk;
+ asoc->strreset_outstanding = 1;
+ sctp_chunk_hold(asoc->strreset_chunk);
+
+ stream->outcnt = outcnt;
+
+ result = SCTP_STRRESET_PERFORMED;
+
+ *evp = sctp_ulpevent_make_stream_change_event(asoc,
+ 0, 0, ntohs(addstrm->number_of_streams), GFP_ATOMIC);
+
+out:
+ sctp_update_strreset_result(asoc, result);
+err:
+ if (!chunk)
+ chunk = sctp_make_strreset_resp(asoc, result, request_seq);
+
+ return chunk;
+}
+
+struct sctp_chunk *sctp_process_strreset_resp(
+ struct sctp_association *asoc,
+ union sctp_params param,
+ struct sctp_ulpevent **evp)
+{
+ 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;
+ __u32 result;
+
+ req = sctp_chunk_lookup_strreset_param(asoc, resp->response_seq, 0);
+ if (!req)
+ return NULL;
+
+ result = ntohl(resp->result);
+ if (result != SCTP_STRRESET_PERFORMED) {
+ /* if in progress, do nothing but retransmit */
+ if (result == SCTP_STRRESET_IN_PROGRESS)
+ return NULL;
+ else if (result == SCTP_STRRESET_DENIED)
+ flags = SCTP_STREAM_RESET_DENIED;
+ else
+ flags = SCTP_STREAM_RESET_FAILED;
+ }
+
+ if (req->type == SCTP_PARAM_RESET_OUT_REQUEST) {
+ struct sctp_strreset_outreq *outreq;
+ __u16 *str_p;
+
+ outreq = (struct sctp_strreset_outreq *)req;
+ str_p = outreq->list_of_streams;
+ nums = (ntohs(outreq->param_hdr.length) - sizeof(*outreq)) / 2;
+
+ if (result == SCTP_STRRESET_PERFORMED) {
+ if (nums) {
+ for (i = 0; i < nums; i++)
+ stream->out[ntohs(str_p[i])].ssn = 0;
+ } else {
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].ssn = 0;
+ }
+
+ flags = SCTP_STREAM_RESET_OUTGOING_SSN;
+ }
+
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].state = SCTP_STREAM_OPEN;
+
+ *evp = sctp_ulpevent_make_stream_reset_event(asoc, flags,
+ nums, str_p, GFP_ATOMIC);
+ } else if (req->type == SCTP_PARAM_RESET_IN_REQUEST) {
+ struct sctp_strreset_inreq *inreq;
+ __u16 *str_p;
+
+ /* if the result is performed, it's impossible for inreq */
+ if (result == SCTP_STRRESET_PERFORMED)
+ return NULL;
+
+ inreq = (struct sctp_strreset_inreq *)req;
+ str_p = inreq->list_of_streams;
+ nums = (ntohs(inreq->param_hdr.length) - sizeof(*inreq)) / 2;
+
+ *evp = sctp_ulpevent_make_stream_reset_event(asoc, flags,
+ nums, str_p, GFP_ATOMIC);
+ } else if (req->type == SCTP_PARAM_RESET_TSN_REQUEST) {
+ struct sctp_strreset_resptsn *resptsn;
+ __u32 stsn, rtsn;
+
+ /* check for resptsn, as sctp_verify_reconf didn't do it*/
+ if (ntohs(param.p->length) != sizeof(*resptsn))
+ return NULL;
+
+ resptsn = (struct sctp_strreset_resptsn *)resp;
+ stsn = ntohl(resptsn->senders_next_tsn);
+ rtsn = ntohl(resptsn->receivers_next_tsn);
+
+ if (result == SCTP_STRRESET_PERFORMED) {
+ __u32 mtsn = sctp_tsnmap_get_max_tsn_seen(
+ &asoc->peer.tsn_map);
+
+ sctp_ulpq_reasm_flushtsn(&asoc->ulpq, mtsn);
+ sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
+
+ sctp_tsnmap_init(&asoc->peer.tsn_map,
+ SCTP_TSN_MAP_INITIAL,
+ stsn, GFP_ATOMIC);
+
+ sctp_outq_free(&asoc->outqueue);
+
+ asoc->next_tsn = rtsn;
+ asoc->ctsn_ack_point = asoc->next_tsn - 1;
+ asoc->adv_peer_ack_point = asoc->ctsn_ack_point;
+
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].ssn = 0;
+ for (i = 0; i < stream->incnt; i++)
+ stream->in[i].ssn = 0;
+ }
+
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].state = SCTP_STREAM_OPEN;
+
+ *evp = sctp_ulpevent_make_assoc_reset_event(asoc, flags,
+ stsn, rtsn, GFP_ATOMIC);
+ } else if (req->type == SCTP_PARAM_RESET_ADD_OUT_STREAMS) {
+ struct sctp_strreset_addstrm *addstrm;
+ __u16 number;
+
+ addstrm = (struct sctp_strreset_addstrm *)req;
+ nums = ntohs(addstrm->number_of_streams);
+ number = stream->outcnt - nums;
+
+ if (result == SCTP_STRRESET_PERFORMED)
+ for (i = number; i < stream->outcnt; i++)
+ stream->out[i].state = SCTP_STREAM_OPEN;
+ else
+ stream->outcnt = number;
+
+ *evp = sctp_ulpevent_make_stream_change_event(asoc, flags,
+ 0, nums, GFP_ATOMIC);
+ } else if (req->type == SCTP_PARAM_RESET_ADD_IN_STREAMS) {
+ struct sctp_strreset_addstrm *addstrm;
+
+ /* if the result is performed, it's impossible for addstrm in
+ * request.
+ */
+ if (result == SCTP_STRRESET_PERFORMED)
+ return NULL;
+
+ addstrm = (struct sctp_strreset_addstrm *)req;
+ nums = ntohs(addstrm->number_of_streams);
+
+ *evp = sctp_ulpevent_make_stream_change_event(asoc, flags,
+ nums, 0, GFP_ATOMIC);
+ }
+
+ asoc->strreset_outstanding--;
+ asoc->strreset_outseq++;
+
+ /* remove everything for this reconf request */
+ if (!asoc->strreset_outstanding) {
+ t = asoc->strreset_chunk->transport;
+ if (del_timer(&t->reconf_timer))
+ sctp_transport_put(t);
+
+ sctp_chunk_put(asoc->strreset_chunk);
+ asoc->strreset_chunk = NULL;
+ }
+
+ return NULL;
+}