diff options
Diffstat (limited to 'include/net/sctp/structs.h')
| -rw-r--r-- | include/net/sctp/structs.h | 146 |
1 files changed, 104 insertions, 42 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 9c385b6417c..8c522ae031b 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 @@ -161,11 +167,12 @@ extern struct sctp_globals { */ int sndbuf_policy; - /* Delayed SACK timeout 200ms default*/ - int sack_timeout; - - /* HB.interval - 30 seconds */ - int hb_interval; + /* + * 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; /* The following variables are implementation specific. */ @@ -218,6 +225,7 @@ extern struct sctp_globals { #define sctp_cookie_preserve_enable (sctp_globals.cookie_preserve_enable) #define sctp_max_retrans_association (sctp_globals.max_retrans_association) #define sctp_sndbuf_policy (sctp_globals.sndbuf_policy) +#define sctp_rcvbuf_policy (sctp_globals.rcvbuf_policy) #define sctp_max_retrans_path (sctp_globals.max_retrans_path) #define sctp_max_retrans_init (sctp_globals.max_retrans_init) #define sctp_sack_timeout (sctp_globals.sack_timeout) @@ -269,6 +277,24 @@ struct sctp_sock { __u32 default_context; __u32 default_timetolive; + /* Heartbeat interval: The endpoint sends out a Heartbeat chunk to + * the destination address every heartbeat interval. This value + * will be inherited by all new associations. + */ + __u32 hbinterval; + + /* This is the max_retrans value for new associations. */ + __u16 pathmaxrxt; + + /* The initial Path MTU to use for new associations. */ + __u32 pathmtu; + + /* The default SACK delay timeout for new associations. */ + __u32 sackdelay; + + /* Flags controling Heartbeat, SACK delay, and Path MTU Discovery. */ + __u32 param_flags; + struct sctp_initmsg initmsg; struct sctp_rtoinfo rtoinfo; struct sctp_paddrparams paddrparam; @@ -379,8 +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 @@ -801,7 +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; @@ -837,9 +864,6 @@ struct sctp_transport { /* Data that has been sent, but not acknowledged. */ __u32 flight_size; - /* PMTU : The current known path MTU. */ - __u32 pmtu; - /* Destination */ struct dst_entry *dst; /* Source address. */ @@ -854,7 +878,10 @@ struct sctp_transport { /* Heartbeat interval: The endpoint sends out a Heartbeat chunk to * the destination address every heartbeat interval. */ - int hb_interval; + unsigned long hbinterval; + + /* SACK delay timeout */ + 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. @@ -866,6 +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; @@ -874,22 +913,11 @@ struct sctp_transport { */ int state; - /* hb_allowed : The current heartbeat state of this destination, - * : i.e. ALLOW-HB, NO-HEARTBEAT, etc. - */ - int hb_allowed; - /* These are the error stats for this destination. */ /* Error count : The current error count for this destination. */ unsigned short error_count; - /* This is the max_retrans value for the transport and will - * be initialized to proto.max_retrans.path. This can be changed - * using SCTP_SET_PEER_ADDR_PARAMS socket option. - */ - int max_retrans; - /* Per : A timer used by each destination. * Destination : * Timer : @@ -1222,11 +1250,19 @@ struct sctp_endpoint { int last_key; int key_changed_at; - /* Default timeouts. */ - int timeouts[SCTP_NUM_TIMEOUT_TYPES]; - + /* 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; + + /* rcvbuf acct. policy. */ + __u32 rcvbuf_policy; }; /* Recover the outter endpoint structure. */ @@ -1472,9 +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; @@ -1492,9 +1528,32 @@ 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. + */ + unsigned long hbinterval; + + /* This is the max_retrans value for new transports in the + * association. + */ + __u16 pathmaxrxt; + + /* Association : The smallest PMTU discovered for all of the + * PMTU : peer's transport addresses. + */ + __u32 pathmtu; + + /* Flags controling Heartbeat, SACK delay, and Path MTU Discovery. */ + __u32 param_flags; + + /* SACK delay timeout */ + unsigned long sackdelay; + - int timeouts[SCTP_NUM_TIMEOUT_TYPES]; + unsigned long timeouts[SCTP_NUM_TIMEOUT_TYPES]; struct timer_list timers[SCTP_NUM_TIMEOUT_TYPES]; /* Transport to which SHUTDOWN chunk was last sent. */ @@ -1553,16 +1612,16 @@ struct sctp_association { */ int sndbuf_used; + /* This is the amount of memory that this association has allocated + * in the receive path at any given time. + */ + atomic_t rmem_alloc; + /* This is the wait queue head for send requests waiting on * the association sndbuf space. */ wait_queue_head_t wait; - /* Association : The smallest PMTU discovered for all of the - * PMTU : peer's transport addresses. - */ - __u32 pmtu; - /* The message size at which SCTP fragmentation will occur. */ __u32 frag_point; @@ -1599,7 +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 |