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sctp: fasthandoff with ASCONF at server-node

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Retransmit chunks to newly confirmed destination when ASCONF and
HEARTBEAT negotiation has success with a single-homed peer.

Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michio Honda 2011-06-17 11:22:35 +09:00 committed by David S. Miller
parent ddc4bbee6e
commit 34d2d89f2d
1 changed files with 7 additions and 1 deletions
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8
net/sctp/sm_sideeffect.c
View file

@ -666,6 +666,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
struct sctp_chunk *chunk)
{
sctp_sender_hb_info_t *hbinfo;
int was_unconfirmed = 0;
/* 8.3 Upon the receipt of the HEARTBEAT ACK, the sender of the
* HEARTBEAT should clear the error counter of the destination
@ -692,9 +693,11 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
/* Mark the destination transport address as active if it is not so
* marked.
*/
if ((t->state == SCTP_INACTIVE) || (t->state == SCTP_UNCONFIRMED))
if ((t->state == SCTP_INACTIVE) || (t->state == SCTP_UNCONFIRMED)) {
was_unconfirmed = 1;
sctp_assoc_control_transport(asoc, t, SCTP_TRANSPORT_UP,
SCTP_HEARTBEAT_SUCCESS);
}
/* The receiver of the HEARTBEAT ACK should also perform an
* RTT measurement for that destination transport address
@ -712,6 +715,9 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
/* Update the heartbeat timer. */
if (!mod_timer(&t->hb_timer, sctp_transport_timeout(t)))
sctp_transport_hold(t);
if (was_unconfirmed && asoc->peer.transport_count == 1)
sctp_transport_immediate_rtx(t);
}