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sctp: add SCTP_PR_STREAM_STATUS sockopt for prsctp

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Before when implementing sctp prsctp, SCTP_PR_STREAM_STATUS wasn't
added, as it needs to save abandoned_(un)sent for every stream.

After sctp stream reconf is added in sctp, assoc has structure
sctp_stream_out to save per stream info.

This patch is to add SCTP_PR_STREAM_STATUS by putting the prsctp
per stream statistics into sctp_stream_out.

v1->v2:
  fix an indent issue.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long
2017-04-01 17:07:46 +08:00
committed by David S. Miller
parent cdccf74b95
commit d229d48d18
5 changed files with 84 additions and 2 deletions
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14
net/sctp/chunk.c
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@@ -306,14 +306,24 @@ int sctp_chunk_abandoned(struct sctp_chunk *chunk)
if (SCTP_PR_TTL_ENABLED(chunk->sinfo.sinfo_flags) &&
time_after(jiffies, chunk->msg->expires_at)) {
if (chunk->sent_count)
struct sctp_stream_out *streamout =
&chunk->asoc->stream->out[chunk->sinfo.sinfo_stream];
if (chunk->sent_count) {
chunk->asoc->abandoned_sent[SCTP_PR_INDEX(TTL)]++;
else
streamout->abandoned_sent[SCTP_PR_INDEX(TTL)]++;
} else {
chunk->asoc->abandoned_unsent[SCTP_PR_INDEX(TTL)]++;
streamout->abandoned_unsent[SCTP_PR_INDEX(TTL)]++;
}
return 1;
} 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->abandoned_sent[SCTP_PR_INDEX(RTX)]++;
streamout->abandoned_sent[SCTP_PR_INDEX(RTX)]++;
return 1;
} else if (!SCTP_PR_POLICY(chunk->sinfo.sinfo_flags) &&
chunk->msg->expires_at &&