Commit ddc4bbee authored by Michio Honda's avatar Michio Honda Committed by David S. Miller

sctp: fasthandoff with ASCONF at mobile-node

Fast retransmission after changing the last address
with ASCONF negotiation
Signed-off-by: default avatarMichio Honda <micchie@sfc.wide.ad.jp>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8ce120f1
......@@ -1085,6 +1085,7 @@ void sctp_transport_burst_reset(struct sctp_transport *);
unsigned long sctp_transport_timeout(struct sctp_transport *);
void sctp_transport_reset(struct sctp_transport *);
void sctp_transport_update_pmtu(struct sctp_transport *, u32);
void sctp_transport_immediate_rtx(struct sctp_transport *);
/* This is the structure we use to queue packets as they come into
......
......@@ -3400,8 +3400,10 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
asconf_len -= length;
}
if (no_err && asoc->src_out_of_asoc_ok)
if (no_err && asoc->src_out_of_asoc_ok) {
asoc->src_out_of_asoc_ok = 0;
sctp_transport_immediate_rtx(asoc->peer.primary_path);
}
/* Free the cached last sent asconf chunk. */
list_del_init(&asconf->transmitted_list);
......
......@@ -641,3 +641,19 @@ void sctp_transport_reset(struct sctp_transport *t)
t->cacc.next_tsn_at_change = 0;
t->cacc.cacc_saw_newack = 0;
}
/* Schedule retransmission on the given transport */
void sctp_transport_immediate_rtx(struct sctp_transport *t)
{
/* Stop pending T3_rtx_timer */
if (timer_pending(&t->T3_rtx_timer)) {
(void)del_timer(&t->T3_rtx_timer);
sctp_transport_put(t);
}
sctp_retransmit(&t->asoc->outqueue, t, SCTP_RTXR_T3_RTX);
if (!timer_pending(&t->T3_rtx_timer)) {
if (!mod_timer(&t->T3_rtx_timer, jiffies + t->rto))
sctp_transport_hold(t);
}
return;
}
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment