sctp: Make sysctl tunables per net

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 7 deletions

diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index aada963c9d6b..953c21e4af97 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -77,7 +77,7 @@ static struct sctp_transport *sctp_transport_init(struct net *net,
          * given destination transport address, set RTO to the protocol
          * parameter 'RTO.Initial'.
          */
-        peer->rto = msecs_to_jiffies(sctp_rto_initial);
+        peer->rto = msecs_to_jiffies(net->sctp.rto_initial);
 
         peer->last_time_heard = jiffies;
         peer->last_time_ecne_reduced = jiffies;
@@ -87,8 +87,8 @@ static struct sctp_transport *sctp_transport_init(struct net *net,
                             SPP_SACKDELAY_ENABLE;
 
         /* Initialize the default path max_retrans.  */
-        peer->pathmaxrxt  = sctp_max_retrans_path;
-        peer->pf_retrans  = sctp_pf_retrans;
+        peer->pathmaxrxt  = net->sctp.max_retrans_path;
+        peer->pf_retrans  = net->sctp.pf_retrans;
 
         INIT_LIST_HEAD(&peer->transmitted);
         INIT_LIST_HEAD(&peer->send_ready);
@@ -318,6 +318,7 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
         SCTP_ASSERT(tp->rto_pending, "rto_pending not set", return);
 
         if (tp->rttvar || tp->srtt) {
+                struct net *net = sock_net(tp->asoc->base.sk);
                 /* 6.3.1 C3) When a new RTT measurement R' is made, set
                  * RTTVAR <- (1 - RTO.Beta) * RTTVAR + RTO.Beta * |SRTT - R'|
                  * SRTT <- (1 - RTO.Alpha) * SRTT + RTO.Alpha * R'
@@ -329,10 +330,10 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
                  * For example, assuming the default value of RTO.Alpha of
                  * 1/8, rto_alpha would be expressed as 3.
                  */
-                tp->rttvar = tp->rttvar - (tp->rttvar >> sctp_rto_beta)
-                        + ((abs(tp->srtt - rtt)) >> sctp_rto_beta);
-                tp->srtt = tp->srtt - (tp->srtt >> sctp_rto_alpha)
-                        + (rtt >> sctp_rto_alpha);
+                tp->rttvar = tp->rttvar - (tp->rttvar >> net->sctp.rto_beta)
+                        + ((abs(tp->srtt - rtt)) >> net->sctp.rto_beta);
+                tp->srtt = tp->srtt - (tp->srtt >> net->sctp.rto_alpha)
+                        + (rtt >> net->sctp.rto_alpha);
         } else {
                 /* 6.3.1 C2) When the first RTT measurement R is made, set
                  * SRTT <- R, RTTVAR <- R/2.