Merge master.kernel.org:/pub/scm/linux/kernel/git/sridhar/lksctp-2.6

2 files changed, 53 insertions, 38 deletions

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index a553f39..e673b2c 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -175,6 +175,8 @@ void sctp_icmp_frag_needed(struct sock *, struct sctp_association *,
 void sctp_icmp_proto_unreachable(struct sock *sk,
 				 struct sctp_association *asoc,
 				 struct sctp_transport *t);
+void sctp_backlog_migrate(struct sctp_association *assoc,
+			  struct sock *oldsk, struct sock *newsk);
 
 /*
  *  Section:  Macros, externs, and inlines
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index f5c22d7..8c522ae 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -127,9 +127,9 @@ extern struct sctp_globals {
 	 * RTO.Alpha		    - 1/8  (3 when converted to right shifts.)
 	 * RTO.Beta		    - 1/4  (2 when converted to right shifts.)
 	 */
-	__u32 rto_initial;
-	__u32 rto_min;
-	__u32 rto_max;
+	unsigned long rto_initial;
+	unsigned long rto_min;
+	unsigned long rto_max;
 
 	/* Note: rto_alpha and rto_beta are really defined as inverse
 	 * powers of two to facilitate integer operations.
@@ -140,12 +140,18 @@ extern struct sctp_globals {
 	/* Max.Burst		    - 4 */
 	int max_burst;
 
-	/* Valid.Cookie.Life	    - 60  seconds  */
-	int valid_cookie_life;
-
 	/* Whether Cookie Preservative is enabled(1) or not(0) */
 	int cookie_preserve_enable;
 
+	/* Valid.Cookie.Life	    - 60  seconds  */
+	unsigned long valid_cookie_life;
+
+	/* Delayed SACK timeout  200ms default*/
+	unsigned long sack_timeout;
+
+	/* HB.interval		    - 30 seconds  */
+	unsigned long hb_interval;
+
 	/* Association.Max.Retrans  - 10 attempts
 	 * Path.Max.Retrans	    - 5	 attempts (per destination address)
 	 * Max.Init.Retransmits	    - 8	 attempts
@@ -168,12 +174,6 @@ extern struct sctp_globals {
 	 */
 	int rcvbuf_policy;
 
-	/* Delayed SACK timeout  200ms default*/
-	int sack_timeout;
-
-	/* HB.interval		    - 30 seconds  */
-	int hb_interval;
-
 	/* The following variables are implementation specific.	 */
 
 	/* Default initialization values to be applied to new associations. */
@@ -405,8 +405,9 @@ struct sctp_cookie {
 /* The format of our cookie that we send to our peer. */
 struct sctp_signed_cookie {
 	__u8 signature[SCTP_SECRET_SIZE];
+	__u32 __pad;		/* force sctp_cookie alignment to 64 bits */
 	struct sctp_cookie c;
-};
+} __attribute__((packed));
 
 /* This is another convenience type to allocate memory for address
  * params for the maximum size and pass such structures around
@@ -827,7 +828,7 @@ struct sctp_transport {
 	__u32 rtt;		/* This is the most recent RTT.	 */
 
 	/* RTO	       : The current retransmission timeout value.  */
-	__u32 rto;
+	unsigned long rto;
 
 	/* RTTVAR      : The current RTT variation.  */
 	__u32 rttvar;
@@ -877,22 +878,10 @@ struct sctp_transport {
 	/* Heartbeat interval: The endpoint sends out a Heartbeat chunk to
 	 * the destination address every heartbeat interval.
 	 */
-	__u32 hbinterval;
-
-	/* This is the max_retrans value for the transport and will
-	 * be initialized from the assocs value.  This can be changed
-	 * using SCTP_SET_PEER_ADDR_PARAMS socket option.
-	 */
-	__u16 pathmaxrxt;
-
-	/* PMTU	      : The current known path MTU.  */
-	__u32 pathmtu;
+	unsigned long hbinterval;
 
 	/* SACK delay timeout */
-	__u32 sackdelay;
-
-	/* Flags controling Heartbeat, SACK delay, and Path MTU Discovery. */
-	__u32 param_flags;
+	unsigned long sackdelay;
 
 	/* When was the last time (in jiffies) that we heard from this
 	 * transport?  We use this to pick new active and retran paths.
@@ -904,6 +893,18 @@ struct sctp_transport {
 	 */
 	unsigned long last_time_ecne_reduced;
 
+	/* This is the max_retrans value for the transport and will
+	 * be initialized from the assocs value.  This can be changed
+	 * using SCTP_SET_PEER_ADDR_PARAMS socket option.
+	 */
+	__u16 pathmaxrxt;
+
+	/* PMTU	      : The current known path MTU.  */
+	__u32 pathmtu;
+
+	/* Flags controling Heartbeat, SACK delay, and Path MTU Discovery. */
+	__u32 param_flags;
+
 	/* The number of times INIT has been sent on this transport. */
 	int init_sent_count;
 
@@ -1249,6 +1250,14 @@ struct sctp_endpoint {
 	int last_key;
 	int key_changed_at;
 
+ 	/* digest:  This is a digest of the sctp cookie.  This field is
+ 	 * 	    only used on the receive path when we try to validate
+ 	 * 	    that the cookie has not been tampered with.  We put
+ 	 * 	    this here so we pre-allocate this once and can re-use
+ 	 * 	    on every receive.
+ 	 */
+ 	__u8 digest[SCTP_SIGNATURE_SIZE];
+ 
 	/* sendbuf acct. policy.	*/
 	__u32 sndbuf_policy;
 
@@ -1499,9 +1508,9 @@ struct sctp_association {
 	 * These values will be initialized by system defaults, but can
 	 * be modified via the SCTP_RTOINFO socket option.
 	 */
-	__u32 rto_initial;
-	__u32 rto_max;
-	__u32 rto_min;
+	unsigned long rto_initial;
+	unsigned long rto_max;
+	unsigned long rto_min;
 
 	/* Maximum number of new data packets that can be sent in a burst.  */
 	int max_burst;
@@ -1519,13 +1528,13 @@ struct sctp_association {
 	__u16 init_retries;
 
 	/* The largest timeout or RTO value to use in attempting an INIT */
-	__u16 max_init_timeo;
+	unsigned long max_init_timeo;
 
 	/* Heartbeat interval: The endpoint sends out a Heartbeat chunk to
 	 * the destination address every heartbeat interval. This value
 	 * will be inherited by all new transports.
 	 */
-	__u32 hbinterval;
+	unsigned long hbinterval;
 
 	/* This is the max_retrans value for new transports in the
 	 * association.
@@ -1537,13 +1546,14 @@ struct sctp_association {
 	 */
 	__u32 pathmtu;
 
-	/* SACK delay timeout */
-	__u32 sackdelay;
-
 	/* Flags controling Heartbeat, SACK delay, and Path MTU Discovery. */
 	__u32 param_flags;
 
-	int timeouts[SCTP_NUM_TIMEOUT_TYPES];
+	/* SACK delay timeout */
+	unsigned long sackdelay;
+
+
+	unsigned long timeouts[SCTP_NUM_TIMEOUT_TYPES];
 	struct timer_list timers[SCTP_NUM_TIMEOUT_TYPES];
 
 	/* Transport to which SHUTDOWN chunk was last sent.  */
@@ -1648,7 +1658,10 @@ struct sctp_association {
 	/* How many duplicated TSNs have we seen?  */
 	int numduptsns;
 
-	/* Number of seconds of idle time before an association is closed.  */
+	/* Number of seconds of idle time before an association is closed.
+	 * In the association context, this is really used as a boolean
+	 * since the real timeout is stored in the timeouts array
+	 */
 	__u32 autoclose;
 
 	/* These are to support