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[SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft.

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This patch adds support to set/get heartbeat interval, maximum number of
retransmissions, pathmtu, sackdelay time for a particular transport/
association/socket as per the latest SCTP sockets api draft11.

Signed-off-by: Frank Filz <ffilz@us.ibm.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Frank Filz
2005-12-22 11:36:46 -08:00
committed by David S. Miller
parent fd9662555c
commit 52ccb8e90c
9 changed files with 602 additions and 227 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
net/sctp/output.c
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@@ -234,8 +234,8 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
goto finish;
pmtu = ((packet->transport->asoc) ?
(packet->transport->asoc->pmtu) :
(packet->transport->pmtu));
(packet->transport->asoc->pathmtu) :
(packet->transport->pathmtu));
too_big = (psize + chunk_len > pmtu);
@@ -482,7 +482,9 @@ int sctp_packet_transmit(struct sctp_packet *packet)
if (!dst || (dst->obsolete > 1)) {
dst_release(dst);
sctp_transport_route(tp, NULL, sctp_sk(sk));
sctp_assoc_sync_pmtu(asoc);
if (asoc->param_flags & SPP_PMTUD_ENABLE) {
sctp_assoc_sync_pmtu(asoc);
}
}
nskb->dst = dst_clone(tp->dst);
@@ -492,7 +494,10 @@ int sctp_packet_transmit(struct sctp_packet *packet)
SCTP_DEBUG_PRINTK("***sctp_transmit_packet*** skb len %d\n",
nskb->len);
(*tp->af_specific->sctp_xmit)(nskb, tp, packet->ipfragok);
if (tp->param_flags & SPP_PMTUD_ENABLE)
(*tp->af_specific->sctp_xmit)(nskb, tp, packet->ipfragok);
else
(*tp->af_specific->sctp_xmit)(nskb, tp, 1);
out:
packet->size = packet->overhead;
@@ -577,7 +582,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
* if ((flightsize + Max.Burst * MTU) < cwnd)
* cwnd = flightsize + Max.Burst * MTU
*/
max_burst_bytes = asoc->max_burst * asoc->pmtu;
max_burst_bytes = asoc->max_burst * asoc->pathmtu;
if ((transport->flight_size + max_burst_bytes) < transport->cwnd) {
transport->cwnd = transport->flight_size + max_burst_bytes;
SCTP_DEBUG_PRINTK("%s: cwnd limited by max_burst: "
@@ -622,7 +627,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
* data will fit or delay in hopes of bundling a full
* sized packet.
*/
if (len < asoc->pmtu - packet->overhead) {
if (len < asoc->pathmtu - packet->overhead) {
retval = SCTP_XMIT_NAGLE_DELAY;
goto finish;
}