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| author | Wei Yongjun <yjwei@cn.fujitsu.com> | 2008-05-09 15:13:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-05-09 15:13:26 -0700 |
| commit | d364d9276b54af16fcb4db83f1315b620daec102 (patch) | |
| tree | 1554b1e3f951cdbde62500056f3b26630c8e09ab /net/sctp/sm_sideeffect.c | |
| parent | 5c5e12898af0978a780991950be12d0d73c02f04 (diff) | |
| download | blackbird-op-linux-d364d9276b54af16fcb4db83f1315b620daec102.tar.gz blackbird-op-linux-d364d9276b54af16fcb4db83f1315b620daec102.zip | |
sctp: Bring SCTP_DELAYED_ACK socket option into API compliance
Brings delayed_ack socket option set/get into line with the latest ietf
socket extensions API draft, while maintaining backwards compatibility.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_sideeffect.c')
| -rw-r--r-- | net/sctp/sm_sideeffect.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index 23a9f1a95b7d..b083312c725a 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -190,20 +190,28 @@ static int sctp_gen_sack(struct sctp_association *asoc, int force, * unacknowledged DATA chunk. ... */ if (!asoc->peer.sack_needed) { - /* We will need a SACK for the next packet. */ - asoc->peer.sack_needed = 1; + asoc->peer.sack_cnt++; /* Set the SACK delay timeout based on the * SACK delay for the last transport * data was received from, or the default * for the association. */ - if (trans) + if (trans) { + /* We will need a SACK for the next packet. */ + if (asoc->peer.sack_cnt >= trans->sackfreq - 1) + asoc->peer.sack_needed = 1; + asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] = trans->sackdelay; - else + } else { + /* We will need a SACK for the next packet. */ + if (asoc->peer.sack_cnt >= asoc->sackfreq - 1) + asoc->peer.sack_needed = 1; + asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] = asoc->sackdelay; + } /* Restart the SACK timer. */ sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_RESTART, @@ -216,6 +224,7 @@ static int sctp_gen_sack(struct sctp_association *asoc, int force, goto nomem; asoc->peer.sack_needed = 0; + asoc->peer.sack_cnt = 0; sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(sack)); |
