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Diffstat (limited to 'include/net/sctp')
-rw-r--r--include/net/sctp/command.h1
-rw-r--r--include/net/sctp/sctp.h3
-rw-r--r--include/net/sctp/sm.h2
-rw-r--r--include/net/sctp/structs.h67
4 files changed, 39 insertions, 34 deletions
diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h
index 8be5135ff7aa..2c55a7ea20af 100644
--- a/include/net/sctp/command.h
+++ b/include/net/sctp/command.h
@@ -107,6 +107,7 @@ typedef enum {
SCTP_CMD_T1_RETRAN, /* Mark for retransmission after T1 timeout */
SCTP_CMD_UPDATE_INITTAG, /* Update peer inittag */
SCTP_CMD_SEND_MSG, /* Send the whole use message */
+ SCTP_CMD_SEND_NEXT_ASCONF, /* Send the next ASCONF after ACK */
SCTP_CMD_LAST
} sctp_verb_t;
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 59151557406c..65946bc43d00 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -128,6 +128,7 @@ extern int sctp_register_pf(struct sctp_pf *, sa_family_t);
int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
int sctp_inet_listen(struct socket *sock, int backlog);
void sctp_write_space(struct sock *sk);
+void sctp_data_ready(struct sock *sk, int len);
unsigned int sctp_poll(struct file *file, struct socket *sock,
poll_table *wait);
void sctp_sock_rfree(struct sk_buff *skb);
@@ -546,7 +547,7 @@ for (pos = chunk->subh.fwdtsn_hdr->skip;\
#define WORD_ROUND(s) (((s)+3)&~3)
/* Make a new instance of type. */
-#define t_new(type, flags) (type *)kmalloc(sizeof(type), flags)
+#define t_new(type, flags) (type *)kzalloc(sizeof(type), flags)
/* Compare two timevals. */
#define tv_lt(s, t) \
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 851c813adb3a..273a8bb683e3 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -437,7 +437,7 @@ sctp_vtag_verify_either(const struct sctp_chunk *chunk,
*/
if ((!sctp_test_T_bit(chunk) &&
(ntohl(chunk->sctp_hdr->vtag) == asoc->c.my_vtag)) ||
- (sctp_test_T_bit(chunk) &&
+ (sctp_test_T_bit(chunk) && asoc->c.peer_vtag &&
(ntohl(chunk->sctp_hdr->vtag) == asoc->c.peer_vtag))) {
return 1;
}
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index ff3017744711..43257b903c82 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -643,17 +643,15 @@ struct sctp_pf {
struct sctp_datamsg {
/* Chunks waiting to be submitted to lower layer. */
struct list_head chunks;
- /* Chunks that have been transmitted. */
- size_t msg_size;
/* Reference counting. */
atomic_t refcnt;
/* When is this message no longer interesting to the peer? */
unsigned long expires_at;
/* Did the messenge fail to send? */
int send_error;
- char send_failed;
- /* Control whether chunks from this message can be abandoned. */
- char can_abandon;
+ u8 send_failed:1,
+ can_abandon:1, /* can chunks from this message can be abandoned. */
+ can_delay; /* should this message be Nagle delayed */
};
struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *,
@@ -757,7 +755,6 @@ struct sctp_chunk {
#define SCTP_NEED_FRTX 0x1
#define SCTP_DONT_FRTX 0x2
__u16 rtt_in_progress:1, /* This chunk used for RTT calc? */
- resent:1, /* Has this chunk ever been resent. */
has_tsn:1, /* Does this chunk have a TSN yet? */
has_ssn:1, /* Does this chunk have a SSN yet? */
singleton:1, /* Only chunk in the packet? */
@@ -778,6 +775,7 @@ int sctp_user_addto_chunk(struct sctp_chunk *chunk, int off, int len,
struct iovec *data);
void sctp_chunk_free(struct sctp_chunk *);
void *sctp_addto_chunk(struct sctp_chunk *, int len, const void *data);
+void *sctp_addto_chunk_fixed(struct sctp_chunk *, int len, const void *data);
struct sctp_chunk *sctp_chunkify(struct sk_buff *,
const struct sctp_association *,
struct sock *);
@@ -878,7 +876,30 @@ struct sctp_transport {
/* Reference counting. */
atomic_t refcnt;
- int dead;
+ int dead:1,
+ /* RTO-Pending : A flag used to track if one of the DATA
+ * chunks sent to this address is currently being
+ * used to compute a RTT. If this flag is 0,
+ * the next DATA chunk sent to this destination
+ * should be used to compute a RTT and this flag
+ * should be set. Every time the RTT
+ * calculation completes (i.e. the DATA chunk
+ * is SACK'd) clear this flag.
+ */
+ rto_pending:1,
+
+ /*
+ * hb_sent : a flag that signals that we have a pending
+ * heartbeat.
+ */
+ hb_sent:1,
+
+ /* Is the Path MTU update pending on this tranport */
+ pmtu_pending:1,
+
+ /* Is this structure kfree()able? */
+ malloced:1;
+
/* This is the peer's IP address and port. */
union sctp_addr ipaddr;
@@ -908,22 +929,6 @@ struct sctp_transport {
/* SRTT : The current smoothed round trip time. */
__u32 srtt;
- /* RTO-Pending : A flag used to track if one of the DATA
- * chunks sent to this address is currently being
- * used to compute a RTT. If this flag is 0,
- * the next DATA chunk sent to this destination
- * should be used to compute a RTT and this flag
- * should be set. Every time the RTT
- * calculation completes (i.e. the DATA chunk
- * is SACK'd) clear this flag.
- * hb_sent : a flag that signals that we have a pending heartbeat.
- */
- __u8 rto_pending;
- __u8 hb_sent;
-
- /* Flag to track the current fast recovery state */
- __u8 fast_recovery;
-
/*
* These are the congestion stats.
*/
@@ -943,9 +948,6 @@ struct sctp_transport {
__u32 burst_limited; /* Holds old cwnd when max.burst is applied */
- /* TSN marking the fast recovery exit point */
- __u32 fast_recovery_exit;
-
/* Destination */
struct dst_entry *dst;
/* Source address. */
@@ -976,9 +978,6 @@ struct sctp_transport {
*/
__u16 pathmaxrxt;
- /* is the Path MTU update pending on this tranport */
- __u8 pmtu_pending;
-
/* PMTU : The current known path MTU. */
__u32 pathmtu;
@@ -1022,8 +1021,6 @@ struct sctp_transport {
/* This is the list of transports that have chunks to send. */
struct list_head send_ready;
- int malloced; /* Is this structure kfree()able? */
-
/* State information saved for SFR_CACC algorithm. The key
* idea in SFR_CACC is to maintain state at the sender on a
* per-destination basis when a changeover happens.
@@ -1065,7 +1062,7 @@ void sctp_transport_route(struct sctp_transport *, union sctp_addr *,
struct sctp_sock *);
void sctp_transport_pmtu(struct sctp_transport *);
void sctp_transport_free(struct sctp_transport *);
-void sctp_transport_reset_timers(struct sctp_transport *, int);
+void sctp_transport_reset_timers(struct sctp_transport *);
void sctp_transport_hold(struct sctp_transport *);
void sctp_transport_put(struct sctp_transport *);
void sctp_transport_update_rto(struct sctp_transport *, __u32);
@@ -1719,6 +1716,12 @@ struct sctp_association {
/* Highest TSN that is acknowledged by incoming SACKs. */
__u32 highest_sacked;
+ /* TSN marking the fast recovery exit point */
+ __u32 fast_recovery_exit;
+
+ /* Flag to track the current fast recovery state */
+ __u8 fast_recovery;
+
/* The number of unacknowledged data chunks. Reported through
* the SCTP_STATUS sockopt.
*/
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