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