[SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft.
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>
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 8239471..2d7d8a5 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -157,9 +157,12 @@
{
__u32 ctsn, max_tsn_seen;
struct sctp_chunk *sack;
+ struct sctp_transport *trans = asoc->peer.last_data_from;
int error = 0;
- if (force)
+ if (force ||
+ (!trans && (asoc->param_flags & SPP_SACKDELAY_DISABLE)) ||
+ (trans && (trans->param_flags & SPP_SACKDELAY_DISABLE)))
asoc->peer.sack_needed = 1;
ctsn = sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map);
@@ -189,7 +192,22 @@
if (!asoc->peer.sack_needed) {
/* We will need a SACK for the next packet. */
asoc->peer.sack_needed = 1;
- goto out;
+
+ /* 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)
+ asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] =
+ trans->sackdelay;
+ else
+ asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] =
+ asoc->sackdelay;
+
+ /* Restart the SACK timer. */
+ sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_RESTART,
+ SCTP_TO(SCTP_EVENT_TIMEOUT_SACK));
} else {
if (asoc->a_rwnd > asoc->rwnd)
asoc->a_rwnd = asoc->rwnd;
@@ -205,7 +223,7 @@
sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
SCTP_TO(SCTP_EVENT_TIMEOUT_SACK));
}
-out:
+
return error;
nomem:
error = -ENOMEM;
@@ -415,7 +433,7 @@
asoc->overall_error_count++;
if (transport->state != SCTP_INACTIVE &&
- (transport->error_count++ >= transport->max_retrans)) {
+ (transport->error_count++ >= transport->pathmaxrxt)) {
SCTP_DEBUG_PRINTK_IPADDR("transport_strike:association %p",
" transport IP: port:%d failed.\n",
asoc,