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, 90 insertions, 0 deletions

diff --git a/include/net/netns/sctp.h b/include/net/netns/sctp.h
index 9576b60cbd25..5e5eb1f9f14b 100644
--- a/include/net/netns/sctp.h
+++ b/include/net/netns/sctp.h
@@ -36,6 +36,96 @@ struct netns_sctp {
         /* Lock that protects the local_addr_list writers */
         spinlock_t local_addr_lock;
 
+        /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values
+         *
+         * The following protocol parameters are RECOMMENDED:
+         *
+         * RTO.Initial              - 3  seconds
+         * RTO.Min                  - 1  second
+         * RTO.Max                 -  60 seconds
+         * RTO.Alpha                - 1/8  (3 when converted to right shifts.)
+         * RTO.Beta                 - 1/4  (2 when converted to right shifts.)
+         */
+        unsigned int rto_initial;
+        unsigned int rto_min;
+        unsigned int rto_max;
+
+        /* Note: rto_alpha and rto_beta are really defined as inverse
+         * powers of two to facilitate integer operations.
+         */
+        int rto_alpha;
+        int rto_beta;
+
+        /* Max.Burst                - 4 */
+        int max_burst;
+
+        /* Whether Cookie Preservative is enabled(1) or not(0) */
+        int cookie_preserve_enable;
+
+        /* Valid.Cookie.Life        - 60  seconds  */
+        unsigned int valid_cookie_life;
+
+        /* Delayed SACK timeout  200ms default*/
+        unsigned int sack_timeout;
+
+        /* HB.interval              - 30 seconds  */
+        unsigned int hb_interval;
+
+        /* Association.Max.Retrans  - 10 attempts
+         * Path.Max.Retrans         - 5  attempts (per destination address)
+         * Max.Init.Retransmits     - 8  attempts
+         */
+        int max_retrans_association;
+        int max_retrans_path;
+        int max_retrans_init;
+        /* Potentially-Failed.Max.Retrans sysctl value
+         * taken from:
+         * http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05
+         */
+        int pf_retrans;
+
+        /*
+         * Policy for preforming sctp/socket accounting
+         * 0   - do socket level accounting, all assocs share sk_sndbuf
+         * 1   - do sctp accounting, each asoc may use sk_sndbuf bytes
+         */
+        int sndbuf_policy;
+
+        /*
+         * Policy for preforming sctp/socket accounting
+         * 0   - do socket level accounting, all assocs share sk_rcvbuf
+         * 1   - do sctp accounting, each asoc may use sk_rcvbuf bytes
+         */
+        int rcvbuf_policy;
+
+        int default_auto_asconf;
+
+        /* Flag to indicate if addip is enabled. */
+        int addip_enable;
+        int addip_noauth;
+
+        /* Flag to indicate if PR-SCTP is enabled. */
+        int prsctp_enable;
+
+        /* Flag to idicate if SCTP-AUTH is enabled */
+        int auth_enable;
+
+        /*
+         * Policy to control SCTP IPv4 address scoping
+         * 0   - Disable IPv4 address scoping
+         * 1   - Enable IPv4 address scoping
+         * 2   - Selectively allow only IPv4 private addresses
+         * 3   - Selectively allow only IPv4 link local address
+         */
+        int scope_policy;
+
+        /* Threshold for rwnd update SACKS.  Receive buffer shifted this many
+         * bits is an indicator of when to send and window update SACK.
+         */
+        int rwnd_upd_shift;
+
+        /* Threshold for autoclose timeout, in seconds. */
+        unsigned long max_autoclose;
 };
 
 #endif /* __NETNS_SCTP_H__ */