1 files changed, 34 insertions, 29 deletions

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index edfcacf3250e..42d00ced5eb8 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -219,6 +219,15 @@ extern struct sctp_globals {
         /* 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 ipv4_scope_policy;
+
         /* Flag to indicate whether computing and verifying checksum
          * is disabled. */
         int checksum_disable;
@@ -252,6 +261,7 @@ extern struct sctp_globals {
 #define sctp_port_hashtable             (sctp_globals.port_hashtable)
 #define sctp_local_addr_list            (sctp_globals.local_addr_list)
 #define sctp_local_addr_lock            (sctp_globals.addr_list_lock)
+#define sctp_scope_policy               (sctp_globals.ipv4_scope_policy)
 #define sctp_addip_enable               (sctp_globals.addip_enable)
 #define sctp_addip_noauth               (sctp_globals.addip_noauth_enable)
 #define sctp_prsctp_enable              (sctp_globals.prsctp_enable)
@@ -628,7 +638,7 @@ struct sctp_datamsg {
         /* Chunks waiting to be submitted to lower layer. */
         struct list_head chunks;
         /* Chunks that have been transmitted. */
-        struct list_head track;
+        size_t msg_size;
         /* Reference counting. */
         atomic_t refcnt;
         /* When is this message no longer interesting to the peer? */
@@ -643,6 +653,7 @@ struct sctp_datamsg {
 struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *,
                                             struct sctp_sndrcvinfo *,
                                             struct msghdr *, int len);
+void sctp_datamsg_free(struct sctp_datamsg *);
 void sctp_datamsg_put(struct sctp_datamsg *);
 void sctp_chunk_fail(struct sctp_chunk *, int error);
 int sctp_chunk_abandoned(struct sctp_chunk *);
@@ -811,22 +822,12 @@ struct sctp_packet {
         /* pointer to the auth chunk for this packet */
         struct sctp_chunk *auth;
 
-        /* This packet contains a COOKIE-ECHO chunk. */
-        __u8 has_cookie_echo;
-
-        /* This packet contains a SACK chunk. */
-        __u8 has_sack;
-
-        /* This packet contains an AUTH chunk */
-        __u8 has_auth;
-
-        /* This packet contains at least 1 DATA chunk */
-        __u8 has_data;
-
-        /* SCTP cannot fragment this packet. So let ip fragment it. */
-        __u8 ipfragok;
-
-        __u8 malloced;
+        u8  has_cookie_echo:1,  /* This packet contains a COOKIE-ECHO chunk. */
+            has_sack:1,         /* This packet contains a SACK chunk. */
+            has_auth:1,         /* This packet contains an AUTH chunk */
+            has_data:1,         /* This packet contains at least 1 DATA chunk */
+            ipfragok:1,         /* So let ip fragment this packet */
+            malloced:1;         /* Is it malloced? */
 };
 
 struct sctp_packet *sctp_packet_init(struct sctp_packet *,
@@ -1567,13 +1568,13 @@ struct sctp_association {
                 __u32   sack_cnt;
 
                 /* These are capabilities which our peer advertised.  */
-                __u8    ecn_capable;     /* Can peer do ECN? */
-                __u8    ipv4_address;    /* Peer understands IPv4 addresses? */
-                __u8    ipv6_address;    /* Peer understands IPv6 addresses? */
-                __u8    hostname_address;/* Peer understands DNS addresses? */
-                __u8    asconf_capable;  /* Does peer support ADDIP? */
-                __u8    prsctp_capable;  /* Can peer do PR-SCTP? */
-                __u8    auth_capable;    /* Is peer doing SCTP-AUTH? */
+                __u8    ecn_capable:1,      /* Can peer do ECN? */
+                        ipv4_address:1,     /* Peer understands IPv4 addresses? */
+                        ipv6_address:1,     /* Peer understands IPv6 addresses? */
+                        hostname_address:1, /* Peer understands DNS addresses? */
+                        asconf_capable:1,   /* Does peer support ADDIP? */
+                        prsctp_capable:1,   /* Can peer do PR-SCTP? */
+                        auth_capable:1;     /* Is peer doing SCTP-AUTH? */
 
                 __u32   adaptation_ind;  /* Adaptation Code point. */
 
@@ -1738,6 +1739,12 @@ struct sctp_association {
          */
         __u32 rwnd_over;
 
+        /* Keeps treack of rwnd pressure.  This happens when we have
+         * a window, but not recevie buffer (i.e small packets).  This one
+         * is releases slowly (1 PMTU at a time ).
+         */
+        __u32 rwnd_press;
+
         /* This is the sndbuf size in use for the association.
          * This corresponds to the sndbuf size for the association,
          * as specified in the sk->sndbuf.
@@ -1756,6 +1763,7 @@ struct sctp_association {
 
         /* The message size at which SCTP fragmentation will occur. */
         __u32 frag_point;
+        __u32 user_frag;
 
         /* Counter used to count INIT errors. */
         int init_err_counter;
@@ -1905,11 +1913,8 @@ struct sctp_association {
 
         __u16 active_key_id;
 
-        /* Need to send an ECNE Chunk? */
-        char need_ecne;
-
-        /* Is it a temporary association? */
-        char temp;
+        __u8 need_ecne:1,       /* Need to send an ECNE Chunk? */
+             temp:1;            /* Is it a temporary association? */
 };