From ad8fec1720e000ba2384de6408076a60fc92a981 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Fri, 21 Jul 2006 14:48:50 -0700 Subject: [SCTP]: Verify all the paths to a peer via heartbeat before using them. This patch implements Path Initialization procedure as described in Sec 2.36 of RFC4460. Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller --- net/sctp/transport.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'net/sctp/transport.c') diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 160f62ad1cc5..2763aa93de1a 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -49,6 +49,7 @@ */ #include +#include #include #include @@ -85,7 +86,6 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer, peer->init_sent_count = 0; - peer->state = SCTP_ACTIVE; peer->param_flags = SPP_HB_DISABLE | SPP_PMTUD_ENABLE | SPP_SACKDELAY_ENABLE; @@ -109,6 +109,9 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer, peer->hb_timer.function = sctp_generate_heartbeat_event; peer->hb_timer.data = (unsigned long)peer; + /* Initialize the 64-bit random nonce sent with heartbeat. */ + get_random_bytes(&peer->hb_nonce, sizeof(peer->hb_nonce)); + atomic_set(&peer->refcnt, 1); peer->dead = 0; @@ -517,7 +520,9 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport, unsigned long sctp_transport_timeout(struct sctp_transport *t) { unsigned long timeout; - timeout = t->hbinterval + t->rto + sctp_jitter(t->rto); + timeout = t->rto + sctp_jitter(t->rto); + if (t->state != SCTP_UNCONFIRMED) + timeout += t->hbinterval; timeout += jiffies; return timeout; } -- cgit v1.2.1