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sctp: Bundle HEAERTBEAT into ASCONF_ACK

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With this patch a HEARTBEAT chunk is bundled into the ASCONF-ACK
for ADD IP ADDRESS, confirming the new destination as quickly as
possible.

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 2011-06-16 17:14:34 +09:00 committed by David S. Miller
parent f207c050fb
commit 6af29ccc22
4 changed files with 8 additions and 0 deletions
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1
include/net/sctp/structs.h
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@ -1915,6 +1915,7 @@ struct sctp_association {
__u32 addip_serial;
union sctp_addr *asconf_addr_del_pending;
int src_out_of_asoc_ok;
struct sctp_transport *new_transport;
/* SCTP AUTH: list of the endpoint shared keys. These
* keys are provided out of band by the user applicaton

1
net/sctp/associola.c
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@ -282,6 +282,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
asoc->peer.asconf_capable = 1;
asoc->asconf_addr_del_pending = NULL;
asoc->src_out_of_asoc_ok = 0;
asoc->new_transport = NULL;
/* Create an input queue. */
sctp_inq_init(&asoc->base.inqueue);

1
net/sctp/sm_make_chunk.c
View File

@ -3015,6 +3015,7 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
/* Start the heartbeat timer. */
if (!mod_timer(&peer->hb_timer, sctp_transport_timeout(peer)))
sctp_transport_hold(peer);
asoc->new_transport = peer;
break;
case SCTP_PARAM_DEL_IP:
/* ADDIP 4.3 D7) If a request is received to delete the

5
net/sctp/sm_statefuns.c
View File

@ -3612,6 +3612,11 @@ sctp_disposition_t sctp_sf_do_asconf(const struct sctp_endpoint *ep,
*/
asconf_ack->dest = chunk->source;
sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(asconf_ack));
if (asoc->new_transport) {
sctp_sf_heartbeat(ep, asoc, type, asoc->new_transport,
commands);
((struct sctp_association *)asoc)->new_transport = NULL;
}
return SCTP_DISPOSITION_CONSUME;
}