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authorXin Long <lucien.xin@gmail.com>2016-09-29 02:37:28 +0800
committerDavid S. Miller <davem@davemloft.net>2016-09-30 02:07:05 -0400
commitbe4947bf46cb0e7a7d089e03c61bab35f1e695ce (patch)
tree859152992bd65e3da93767dbda6fbdf7e011e69c
parent0605483f6ace1f6b63e397c819a115ddcd13af0d (diff)
downloadlinux-sh-be4947bf46cb0e7a7d089e03c61bab35f1e695ce.tar.gz
sctp: change to check peer prsctp_capable when using prsctp polices
Now before using prsctp polices, sctp uses asoc->prsctp_enable to check if prsctp is enabled. However asoc->prsctp_enable is set only means local host support prsctp, sctp should not abandon packet if peer host doesn't enable prsctp. So this patch is to use asoc->peer.prsctp_capable to check if prsctp is enabled on both side, instead of asoc->prsctp_enable, as asoc's peer.prsctp_capable is set only when local and peer both enable prsctp. Fixes: a6c2f792873a ("sctp: implement prsctp TTL policy") Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/sctp/chunk.c4
-rw-r--r--net/sctp/outqueue.c8
2 files changed, 6 insertions, 6 deletions
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 14990e21cf55..0a3dbec0a8fb 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -179,7 +179,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
msg, msg->expires_at, jiffies);
}
- if (asoc->prsctp_enable &&
+ if (asoc->peer.prsctp_capable &&
SCTP_PR_TTL_ENABLED(sinfo->sinfo_flags))
msg->expires_at =
jiffies + msecs_to_jiffies(sinfo->sinfo_timetolive);
@@ -340,7 +340,7 @@ errout:
/* Check whether this message has expired. */
int sctp_chunk_abandoned(struct sctp_chunk *chunk)
{
- if (!chunk->asoc->prsctp_enable ||
+ if (!chunk->asoc->peer.prsctp_capable ||
!SCTP_PR_POLICY(chunk->sinfo.sinfo_flags)) {
struct sctp_datamsg *msg = chunk->msg;
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index e084f35d40d2..107233da5cc9 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -326,7 +326,7 @@ int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk, gfp_t gfp)
sctp_chunk_hold(chunk);
sctp_outq_tail_data(q, chunk);
- if (chunk->asoc->prsctp_enable &&
+ if (chunk->asoc->peer.prsctp_capable &&
SCTP_PR_PRIO_ENABLED(chunk->sinfo.sinfo_flags))
chunk->asoc->sent_cnt_removable++;
if (chunk->chunk_hdr->flags & SCTP_DATA_UNORDERED)
@@ -442,7 +442,7 @@ void sctp_prsctp_prune(struct sctp_association *asoc,
{
struct sctp_transport *transport;
- if (!asoc->prsctp_enable || !asoc->sent_cnt_removable)
+ if (!asoc->peer.prsctp_capable || !asoc->sent_cnt_removable)
return;
msg_len = sctp_prsctp_prune_sent(asoc, sinfo,
@@ -1055,7 +1055,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
/* Mark as failed send. */
sctp_chunk_fail(chunk, SCTP_ERROR_INV_STRM);
- if (asoc->prsctp_enable &&
+ if (asoc->peer.prsctp_capable &&
SCTP_PR_PRIO_ENABLED(chunk->sinfo.sinfo_flags))
asoc->sent_cnt_removable--;
sctp_chunk_free(chunk);
@@ -1347,7 +1347,7 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_chunk *chunk)
tsn = ntohl(tchunk->subh.data_hdr->tsn);
if (TSN_lte(tsn, ctsn)) {
list_del_init(&tchunk->transmitted_list);
- if (asoc->prsctp_enable &&
+ if (asoc->peer.prsctp_capable &&
SCTP_PR_PRIO_ENABLED(chunk->sinfo.sinfo_flags))
asoc->sent_cnt_removable--;
sctp_chunk_free(tchunk);