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Kirill Smelkov
linux
Commits
030ce1c7
Commit
030ce1c7
authored
Jan 21, 2003
by
Jon Grimm
Browse files
Options
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Merge
parents
3c1ef96d
b5c1e5fd
Changes
14
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Showing
14 changed files
with
272 additions
and
224 deletions
+272
-224
include/net/sctp/command.h
include/net/sctp/command.h
+17
-16
include/net/sctp/sm.h
include/net/sctp/sm.h
+1
-1
include/net/sctp/structs.h
include/net/sctp/structs.h
+41
-41
net/sctp/associola.c
net/sctp/associola.c
+26
-26
net/sctp/endpointola.c
net/sctp/endpointola.c
+6
-5
net/sctp/input.c
net/sctp/input.c
+8
-8
net/sctp/output.c
net/sctp/output.c
+3
-3
net/sctp/outqueue.c
net/sctp/outqueue.c
+21
-18
net/sctp/sm_make_chunk.c
net/sctp/sm_make_chunk.c
+5
-5
net/sctp/sm_sideeffect.c
net/sctp/sm_sideeffect.c
+52
-36
net/sctp/sm_statefuns.c
net/sctp/sm_statefuns.c
+32
-14
net/sctp/sm_statetable.c
net/sctp/sm_statetable.c
+5
-5
net/sctp/socket.c
net/sctp/socket.c
+7
-7
net/sctp/transport.c
net/sctp/transport.c
+48
-39
No files found.
include/net/sctp/command.h
View file @
030ce1c7
...
...
@@ -73,7 +73,8 @@ typedef enum {
SCTP_CMD_STRIKE
,
/* Mark a strike against a transport. */
SCTP_CMD_TRANSMIT
,
/* Transmit the outqueue. */
SCTP_CMD_HB_TIMERS_START
,
/* Start the heartbeat timers. */
SCTP_CMD_HB_TIMERS_UPDATE
,
/* Update the heartbeat timers. */
SCTP_CMD_HB_TIMER_UPDATE
,
/* Update a heartbeat timers. */
SCTP_CMD_HB_TIMERS_STOP
,
/* Stop the heartbeat timers. */
SCTP_CMD_TRANSPORT_RESET
,
/* Reset the status of a transport. */
SCTP_CMD_TRANSPORT_ON
,
/* Mark the transport as active. */
SCTP_CMD_REPORT_ERROR
,
/* Pass this error back out of the sm. */
...
...
@@ -112,7 +113,7 @@ typedef union {
void
*
ptr
;
sctp_chunk_t
*
chunk
;
sctp_association_t
*
asoc
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_bind_addr_t
*
bp
;
sctp_init_chunk_t
*
init
;
sctp_ulpevent_t
*
ulpevent
;
...
...
@@ -160,7 +161,7 @@ SCTP_ARG_CONSTRUCTOR(TO, sctp_event_timeout_t, to)
SCTP_ARG_CONSTRUCTOR
(
PTR
,
void
*
,
ptr
)
SCTP_ARG_CONSTRUCTOR
(
CHUNK
,
sctp_chunk_t
*
,
chunk
)
SCTP_ARG_CONSTRUCTOR
(
ASOC
,
sctp_association_t
*
,
asoc
)
SCTP_ARG_CONSTRUCTOR
(
TRANSPORT
,
s
ctp_transport_
t
*
,
transport
)
SCTP_ARG_CONSTRUCTOR
(
TRANSPORT
,
s
truct
sctp_transpor
t
*
,
transport
)
SCTP_ARG_CONSTRUCTOR
(
BA
,
sctp_bind_addr_t
*
,
bp
)
SCTP_ARG_CONSTRUCTOR
(
PEER_INIT
,
sctp_init_chunk_t
*
,
init
)
SCTP_ARG_CONSTRUCTOR
(
ULPEVENT
,
sctp_ulpevent_t
*
,
ulpevent
)
...
...
include/net/sctp/sm.h
View file @
030ce1c7
...
...
@@ -256,7 +256,7 @@ sctp_chunk_t *sctp_make_abort_user(const sctp_association_t *,
const
sctp_chunk_t
*
,
const
struct
msghdr
*
);
sctp_chunk_t
*
sctp_make_heartbeat
(
const
sctp_association_t
*
,
const
s
ctp_transport_
t
*
,
const
s
truct
sctp_transpor
t
*
,
const
void
*
payload
,
const
size_t
paylen
);
sctp_chunk_t
*
sctp_make_heartbeat_ack
(
const
sctp_association_t
*
,
...
...
include/net/sctp/structs.h
View file @
030ce1c7
...
...
@@ -107,7 +107,7 @@ union sctp_addr {
struct
sctp_protocol
;
struct
SCTP_endpoint
;
struct
SCTP_association
;
struct
SCTP
_transport
;
struct
sctp
_transport
;
struct
SCTP_packet
;
struct
SCTP_chunk
;
struct
SCTP_inqueue
;
...
...
@@ -121,7 +121,6 @@ struct sctp_ssnmap;
typedef
struct
sctp_protocol
sctp_protocol_t
;
typedef
struct
SCTP_endpoint
sctp_endpoint_t
;
typedef
struct
SCTP_association
sctp_association_t
;
typedef
struct
SCTP_transport
sctp_transport_t
;
typedef
struct
SCTP_packet
sctp_packet_t
;
typedef
struct
SCTP_chunk
sctp_chunk_t
;
typedef
struct
SCTP_inqueue
sctp_inqueue_t
;
...
...
@@ -561,7 +560,7 @@ struct SCTP_chunk {
* For an outbound chunk, it tells us where we'd like it to
* go. It is NULL if we have no preference.
*/
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
};
sctp_chunk_t
*
sctp_make_chunk
(
const
sctp_association_t
*
,
__u8
type
,
...
...
@@ -605,7 +604,7 @@ struct SCTP_packet {
* The function we finally use to pass down to the next lower
* layer lives in the transport structure.
*/
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
/* Allow a callback for getting a high priority chunk
* bundled early into the packet (This is used for ECNE).
...
...
@@ -630,7 +629,7 @@ typedef int (sctp_outq_thandler_t)(struct sctp_outq *, void *);
typedef
int
(
sctp_outq_ehandler_t
)(
struct
sctp_outq
*
);
typedef
sctp_packet_t
*
(
sctp_outq_ohandler_init_t
)
(
sctp_packet_t
*
,
s
ctp_transport_
t
*
,
s
truct
sctp_transpor
t
*
,
__u16
sport
,
__u16
dport
);
typedef
sctp_packet_t
*
(
sctp_outq_ohandler_config_t
)
...
...
@@ -670,7 +669,7 @@ void sctp_packet_free(sctp_packet_t *);
* period.
*
*/
struct
SCTP
_transport
{
struct
sctp
_transport
{
/* A list of transports. */
struct
list_head
transports
;
...
...
@@ -819,24 +818,25 @@ struct SCTP_transport {
int
malloced
;
/* Is this structure kfree()able? */
};
extern
sctp_transport_
t
*
sctp_transport_new
(
const
union
sctp_addr
*
,
int
);
extern
sctp_transport_t
*
sctp_transport_init
(
sctp_transport_
t
*
,
struct
sctp_transpor
t
*
sctp_transport_new
(
const
union
sctp_addr
*
,
int
);
struct
sctp_transport
*
sctp_transport_init
(
struct
sctp_transpor
t
*
,
const
union
sctp_addr
*
,
int
);
extern
void
sctp_transport_set_owner
(
sctp_transport_
t
*
,
sctp_association_t
*
);
extern
void
sctp_transport_route
(
sctp_transport_
t
*
,
union
sctp_addr
*
,
void
sctp_transport_set_owner
(
struct
sctp_transpor
t
*
,
sctp_association_t
*
);
void
sctp_transport_route
(
struct
sctp_transpor
t
*
,
union
sctp_addr
*
,
struct
sctp_opt
*
);
extern
void
sctp_transport_free
(
sctp_transport_t
*
);
extern
void
sctp_transport_destroy
(
sctp_transport_t
*
);
extern
void
sctp_transport_reset_timers
(
sctp_transport_t
*
);
extern
void
sctp_transport_hold
(
sctp_transport_t
*
);
extern
void
sctp_transport_put
(
sctp_transport_t
*
);
extern
void
sctp_transport_update_rto
(
sctp_transport_t
*
,
__u32
);
extern
void
sctp_transport_raise_cwnd
(
sctp_transport_t
*
,
__u32
,
__u32
);
extern
void
sctp_transport_lower_cwnd
(
sctp_transport_t
*
,
sctp_lower_cwnd_t
);
void
sctp_transport_free
(
struct
sctp_transport
*
);
void
sctp_transport_destroy
(
struct
sctp_transport
*
);
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
);
void
sctp_transport_raise_cwnd
(
struct
sctp_transport
*
,
__u32
,
__u32
);
void
sctp_transport_lower_cwnd
(
struct
sctp_transport
*
,
sctp_lower_cwnd_t
);
unsigned
long
sctp_transport_timeout
(
struct
sctp_transport
*
);
/* This is the structure we use to queue packets as they come into
* SCTP. We write packets to it and read chunks from it. It handles
* fragment reassembly and chunk unbundling.
* SCTP. We write packets to it and read chunks from it.
*/
struct
SCTP_inqueue
{
/* This is actually a queue of sctp_chunk_t each
...
...
@@ -940,9 +940,8 @@ int sctp_outq_set_output_handlers(struct sctp_outq *,
sctp_outq_ohandler_t
build
,
sctp_outq_ohandler_force_t
force
);
void
sctp_outq_restart
(
struct
sctp_outq
*
);
void
sctp_retransmit
(
struct
sctp_outq
*
,
sctp_transport_t
*
,
sctp_retransmit_reason_t
);
void
sctp_retransmit_mark
(
struct
sctp_outq
*
,
sctp_transport_t
*
,
__u8
);
void
sctp_retransmit
(
struct
sctp_outq
*
,
struct
sctp_transport
*
,
__u8
);
void
sctp_retransmit_mark
(
struct
sctp_outq
*
,
struct
sctp_transport
*
,
__u8
);
/* These bind address data fields common between endpoints and associations */
...
...
@@ -1131,7 +1130,7 @@ void sctp_endpoint_hold(sctp_endpoint_t *);
void
sctp_endpoint_add_asoc
(
sctp_endpoint_t
*
,
sctp_association_t
*
asoc
);
sctp_association_t
*
sctp_endpoint_lookup_assoc
(
const
sctp_endpoint_t
*
ep
,
const
union
sctp_addr
*
paddr
,
s
ctp_transport_
t
**
);
s
truct
sctp_transpor
t
**
);
int
sctp_endpoint_is_peeled_off
(
sctp_endpoint_t
*
,
const
union
sctp_addr
*
);
sctp_endpoint_t
*
sctp_endpoint_is_match
(
sctp_endpoint_t
*
,
const
union
sctp_addr
*
);
...
...
@@ -1232,7 +1231,7 @@ struct SCTP_association {
* designate the connection we are currently using to
* transmit new data and most control chunks.
*/
s
ctp_transport_
t
*
primary_path
;
s
truct
sctp_transpor
t
*
primary_path
;
/* Cache the primary path address here, when we
* need a an address for msg_name.
...
...
@@ -1243,7 +1242,7 @@ struct SCTP_association {
* The path that we are currently using to
* transmit new data and most control chunks.
*/
s
ctp_transport_
t
*
active_path
;
s
truct
sctp_transpor
t
*
active_path
;
/* retran_path
*
...
...
@@ -1255,13 +1254,13 @@ struct SCTP_association {
* different from the last destination address to
* which the DATA chunk was sent.
*/
s
ctp_transport_
t
*
retran_path
;
s
truct
sctp_transpor
t
*
retran_path
;
/* Pointer to last transport I have sent on. */
s
ctp_transport_
t
*
last_sent_to
;
s
truct
sctp_transpor
t
*
last_sent_to
;
/* This is the last transport I have recieved DATA on. */
s
ctp_transport_
t
*
last_data_from
;
s
truct
sctp_transpor
t
*
last_data_from
;
/*
* Mapping An array of bits or bytes indicating which out of
...
...
@@ -1373,7 +1372,7 @@ struct SCTP_association {
struct
timer_list
timers
[
SCTP_NUM_TIMEOUT_TYPES
];
/* Transport to which SHUTDOWN chunk was last sent. */
s
ctp_transport_
t
*
shutdown_last_sent_to
;
s
truct
sctp_transpor
t
*
shutdown_last_sent_to
;
/* Next TSN : The next TSN number to be assigned to a new
* : DATA chunk. This is sent in the INIT or INIT
...
...
@@ -1612,16 +1611,17 @@ void sctp_association_free(sctp_association_t *);
void
sctp_association_put
(
sctp_association_t
*
);
void
sctp_association_hold
(
sctp_association_t
*
);
s
ctp_transport_
t
*
sctp_assoc_choose_shutdown_transport
(
sctp_association_t
*
);
s
ctp_transport_
t
*
sctp_assoc_lookup_paddr
(
const
sctp_association_t
*
,
s
truct
sctp_transpor
t
*
sctp_assoc_choose_shutdown_transport
(
sctp_association_t
*
);
s
truct
sctp_transpor
t
*
sctp_assoc_lookup_paddr
(
const
sctp_association_t
*
,
const
union
sctp_addr
*
);
s
ctp_transport_
t
*
sctp_assoc_add_peer
(
sctp_association_t
*
,
s
truct
sctp_transpor
t
*
sctp_assoc_add_peer
(
sctp_association_t
*
,
const
union
sctp_addr
*
address
,
const
int
priority
);
void
sctp_assoc_control_transport
(
sctp_association_t
*
,
sctp_transport_t
*
,
void
sctp_assoc_control_transport
(
sctp_association_t
*
,
struct
sctp_transport
*
,
sctp_transport_cmd_t
,
sctp_sn_error_t
);
s
ctp_transport_
t
*
sctp_assoc_lookup_tsn
(
sctp_association_t
*
,
__u32
);
s
ctp_transport_
t
*
sctp_assoc_is_match
(
sctp_association_t
*
,
s
truct
sctp_transpor
t
*
sctp_assoc_lookup_tsn
(
sctp_association_t
*
,
__u32
);
s
truct
sctp_transpor
t
*
sctp_assoc_is_match
(
sctp_association_t
*
,
const
union
sctp_addr
*
,
const
union
sctp_addr
*
);
void
sctp_assoc_migrate
(
sctp_association_t
*
,
struct
sock
*
);
...
...
net/sctp/associola.c
View file @
030ce1c7
...
...
@@ -291,7 +291,7 @@ sctp_association_t *sctp_association_init(sctp_association_t *asoc,
*/
void
sctp_association_free
(
sctp_association_t
*
asoc
)
{
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_endpoint_t
*
ep
;
struct
list_head
*
pos
,
*
temp
;
int
i
;
...
...
@@ -337,7 +337,7 @@ void sctp_association_free(sctp_association_t *asoc)
/* Release the transport structures. */
list_for_each_safe
(
pos
,
temp
,
&
asoc
->
peer
.
transport_addr_list
)
{
transport
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
transport
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
list_del
(
pos
);
sctp_transport_free
(
transport
);
}
...
...
@@ -363,11 +363,11 @@ static void sctp_association_destroy(sctp_association_t *asoc)
/* Add a transport address to an association. */
s
ctp_transport_
t
*
sctp_assoc_add_peer
(
sctp_association_t
*
asoc
,
s
truct
sctp_transpor
t
*
sctp_assoc_add_peer
(
sctp_association_t
*
asoc
,
const
union
sctp_addr
*
addr
,
int
priority
)
{
s
ctp_transport_
t
*
peer
;
s
truct
sctp_transpor
t
*
peer
;
sctp_opt_t
*
sp
;
unsigned
short
port
;
...
...
@@ -476,16 +476,16 @@ sctp_transport_t *sctp_assoc_add_peer(sctp_association_t *asoc,
}
/* Lookup a transport by address. */
s
ctp_transport_
t
*
sctp_assoc_lookup_paddr
(
const
sctp_association_t
*
asoc
,
s
truct
sctp_transpor
t
*
sctp_assoc_lookup_paddr
(
const
sctp_association_t
*
asoc
,
const
union
sctp_addr
*
address
)
{
s
ctp_transport_
t
*
t
;
s
truct
sctp_transpor
t
*
t
;
struct
list_head
*
pos
;
/* Cycle through all transports searching for a peer address. */
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
t
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
t
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
if
(
sctp_cmp_addr_exact
(
address
,
&
t
->
ipaddr
))
return
t
;
}
...
...
@@ -498,13 +498,13 @@ sctp_transport_t *sctp_assoc_lookup_paddr(const sctp_association_t *asoc,
* Select and update the new active and retran paths.
*/
void
sctp_assoc_control_transport
(
sctp_association_t
*
asoc
,
s
ctp_transport_
t
*
transport
,
s
truct
sctp_transpor
t
*
transport
,
sctp_transport_cmd_t
command
,
sctp_sn_error_t
error
)
{
s
ctp_transport_
t
*
t
=
NULL
;
s
ctp_transport_
t
*
first
;
s
ctp_transport_
t
*
second
;
s
truct
sctp_transpor
t
*
t
=
NULL
;
s
truct
sctp_transpor
t
*
first
;
s
truct
sctp_transpor
t
*
second
;
sctp_ulpevent_t
*
event
;
struct
list_head
*
pos
;
int
spc_state
=
0
;
...
...
@@ -545,7 +545,7 @@ void sctp_assoc_control_transport(sctp_association_t *asoc,
first
=
NULL
;
second
=
NULL
;
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
t
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
t
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
if
(
!
t
->
active
)
continue
;
...
...
@@ -693,12 +693,12 @@ sctp_chunk_t *sctp_get_no_prepend(sctp_association_t *asoc)
/*
* Find which transport this TSN was sent on.
*/
s
ctp_transport_
t
*
sctp_assoc_lookup_tsn
(
sctp_association_t
*
asoc
,
__u32
tsn
)
s
truct
sctp_transpor
t
*
sctp_assoc_lookup_tsn
(
sctp_association_t
*
asoc
,
__u32
tsn
)
{
s
ctp_transport_
t
*
active
;
s
ctp_transport_
t
*
match
;
s
truct
sctp_transpor
t
*
active
;
s
truct
sctp_transpor
t
*
match
;
struct
list_head
*
entry
,
*
pos
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_chunk_t
*
chunk
;
__u32
key
=
htonl
(
tsn
);
...
...
@@ -732,7 +732,7 @@ sctp_transport_t *sctp_assoc_lookup_tsn(sctp_association_t *asoc, __u32 tsn)
/* If not found, go search all the other transports. */
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
transport
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
transport
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
if
(
transport
==
active
)
break
;
...
...
@@ -750,11 +750,11 @@ sctp_transport_t *sctp_assoc_lookup_tsn(sctp_association_t *asoc, __u32 tsn)
}
/* Is this the association we are looking for? */
s
ctp_transport_
t
*
sctp_assoc_is_match
(
sctp_association_t
*
asoc
,
s
truct
sctp_transpor
t
*
sctp_assoc_is_match
(
sctp_association_t
*
asoc
,
const
union
sctp_addr
*
laddr
,
const
union
sctp_addr
*
paddr
)
{
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_read_lock
(
&
asoc
->
base
.
addr_lock
);
...
...
@@ -897,9 +897,9 @@ void sctp_assoc_update(sctp_association_t *asoc, sctp_association_t *new)
* through the inactive transports as this is the next best thing
* we can try.
*/
s
ctp_transport_
t
*
sctp_assoc_choose_shutdown_transport
(
sctp_association_t
*
asoc
)
s
truct
sctp_transpor
t
*
sctp_assoc_choose_shutdown_transport
(
sctp_association_t
*
asoc
)
{
s
ctp_transport_
t
*
t
,
*
next
;
s
truct
sctp_transpor
t
*
t
,
*
next
;
struct
list_head
*
head
=
&
asoc
->
peer
.
transport_addr_list
;
struct
list_head
*
pos
;
...
...
@@ -922,7 +922,7 @@ sctp_transport_t *sctp_assoc_choose_shutdown_transport(sctp_association_t *asoc)
else
pos
=
pos
->
next
;
t
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
t
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
/* Try to find an active transport. */
...
...
net/sctp/endpointola.c
View file @
030ce1c7
...
...
@@ -262,7 +262,7 @@ sctp_endpoint_t *sctp_endpoint_is_match(sctp_endpoint_t *ep,
sctp_association_t
*
__sctp_endpoint_lookup_assoc
(
const
sctp_endpoint_t
*
endpoint
,
const
union
sctp_addr
*
paddr
,
s
ctp_transport_
t
**
transport
)
s
truct
sctp_transpor
t
**
transport
)
{
int
rport
;
sctp_association_t
*
asoc
;
...
...
@@ -287,9 +287,10 @@ sctp_association_t *__sctp_endpoint_lookup_assoc(
}
/* Lookup association on an endpoint based on a peer address. BH-safe. */
sctp_association_t
*
sctp_endpoint_lookup_assoc
(
const
sctp_endpoint_t
*
ep
,
sctp_association_t
*
sctp_endpoint_lookup_assoc
(
const
sctp_endpoint_t
*
ep
,
const
union
sctp_addr
*
paddr
,
sctp_transport_
t
**
transport
)
struct
sctp_transpor
t
**
transport
)
{
sctp_association_t
*
asoc
;
...
...
@@ -331,7 +332,7 @@ static void sctp_endpoint_bh_rcv(sctp_endpoint_t *ep)
{
sctp_association_t
*
asoc
;
struct
sock
*
sk
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_chunk_t
*
chunk
;
sctp_inqueue_t
*
inqueue
;
sctp_subtype_t
subtype
;
...
...
net/sctp/input.c
View file @
030ce1c7
...
...
@@ -66,7 +66,7 @@ static int sctp_rcv_ootb(struct sk_buff *);
sctp_association_t
*
__sctp_rcv_lookup
(
struct
sk_buff
*
skb
,
const
union
sctp_addr
*
laddr
,
const
union
sctp_addr
*
paddr
,
s
ctp_transport_
t
**
transportp
);
s
truct
sctp_transpor
t
**
transportp
);
sctp_endpoint_t
*
__sctp_rcv_lookup_endpoint
(
const
union
sctp_addr
*
laddr
);
...
...
@@ -104,7 +104,7 @@ int sctp_rcv(struct sk_buff *skb)
sctp_association_t
*
asoc
;
sctp_endpoint_t
*
ep
=
NULL
;
sctp_endpoint_common_t
*
rcvr
;
s
ctp_transport_
t
*
transport
=
NULL
;
s
truct
sctp_transpor
t
*
transport
=
NULL
;
sctp_chunk_t
*
chunk
;
struct
sctphdr
*
sh
;
union
sctp_addr
src
;
...
...
@@ -601,12 +601,12 @@ void __sctp_unhash_established(sctp_association_t *asoc)
/* Look up an association. */
sctp_association_t
*
__sctp_lookup_association
(
const
union
sctp_addr
*
laddr
,
const
union
sctp_addr
*
paddr
,
s
ctp_transport_
t
**
transportp
)
s
truct
sctp_transpor
t
**
transportp
)
{
sctp_hashbucket_t
*
head
;
sctp_endpoint_common_t
*
epb
;
sctp_association_t
*
asoc
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
int
hash
;
/* Optimize here for direct hit, only listening connections can
...
...
@@ -637,7 +637,7 @@ sctp_association_t *__sctp_lookup_association(const union sctp_addr *laddr,
/* Look up an association. BH-safe. */
sctp_association_t
*
sctp_lookup_association
(
const
union
sctp_addr
*
laddr
,
const
union
sctp_addr
*
paddr
,
s
ctp_transport_
t
**
transportp
)
s
truct
sctp_transpor
t
**
transportp
)
{
sctp_association_t
*
asoc
;
...
...
@@ -653,7 +653,7 @@ int sctp_has_association(const union sctp_addr *laddr,
const
union
sctp_addr
*
paddr
)
{
sctp_association_t
*
asoc
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
if
((
asoc
=
sctp_lookup_association
(
laddr
,
paddr
,
&
transport
)))
{
sock_put
(
asoc
->
base
.
sk
);
...
...
@@ -683,7 +683,7 @@ int sctp_has_association(const union sctp_addr *laddr,
*
*/
static
sctp_association_t
*
__sctp_rcv_init_lookup
(
struct
sk_buff
*
skb
,
const
union
sctp_addr
*
laddr
,
s
ctp_transport_
t
**
transportp
)
const
union
sctp_addr
*
laddr
,
s
truct
sctp_transpor
t
**
transportp
)
{
sctp_association_t
*
asoc
;
union
sctp_addr
addr
;
...
...
@@ -743,7 +743,7 @@ static sctp_association_t *__sctp_rcv_init_lookup(struct sk_buff *skb,
sctp_association_t
*
__sctp_rcv_lookup
(
struct
sk_buff
*
skb
,
const
union
sctp_addr
*
paddr
,
const
union
sctp_addr
*
laddr
,
s
ctp_transport_
t
**
transportp
)
s
truct
sctp_transpor
t
**
transportp
)
{
sctp_association_t
*
asoc
;
...
...
net/sctp/output.c
View file @
030ce1c7
...
...
@@ -90,7 +90,7 @@ sctp_packet_t *sctp_packet_config(sctp_packet_t *packet,
/* Initialize the packet structure. */
sctp_packet_t
*
sctp_packet_init
(
sctp_packet_t
*
packet
,
s
ctp_transport_
t
*
transport
,
s
truct
sctp_transpor
t
*
transport
,
__u16
sport
,
__u16
dport
)
{
...
...
@@ -236,7 +236,7 @@ sctp_xmit_t sctp_packet_append_chunk(sctp_packet_t *packet, sctp_chunk_t *chunk)
*/
int
sctp_packet_transmit
(
sctp_packet_t
*
packet
)
{
s
ctp_transport_
t
*
transport
=
packet
->
transport
;
s
truct
sctp_transpor
t
*
transport
=
packet
->
transport
;
sctp_association_t
*
asoc
=
transport
->
asoc
;
struct
sctphdr
*
sh
;
__u32
crc32
;
...
...
@@ -477,7 +477,7 @@ static sctp_xmit_t sctp_packet_append_data(sctp_packet_t *packet,
{
sctp_xmit_t
retval
=
SCTP_XMIT_OK
;
size_t
datasize
,
rwnd
,
inflight
;
s
ctp_transport_
t
*
transport
=
packet
->
transport
;
s
truct
sctp_transpor
t
*
transport
=
packet
->
transport
;
__u32
max_burst_bytes
;
/* RFC 2960 6.1 Transmission of DATA Chunks
...
...
net/sctp/outqueue.c
View file @
030ce1c7
...
...
@@ -58,7 +58,7 @@
static
int
sctp_acked
(
sctp_sackhdr_t
*
sack
,
__u32
tsn
);
static
void
sctp_check_transmitted
(
struct
sctp_outq
*
q
,
struct
list_head
*
transmitted_queue
,
s
ctp_transport_
t
*
transport
,
s
truct
sctp_transpor
t
*
transport
,
sctp_sackhdr_t
*
sack
,
__u32
highest_new_tsn
);
...
...
@@ -104,13 +104,13 @@ void sctp_outq_init(sctp_association_t *asoc, struct sctp_outq *q)
*/
void
sctp_outq_teardown
(
struct
sctp_outq
*
q
)
{
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
struct
list_head
*
lchunk
,
*
pos
,
*
temp
;
sctp_chunk_t
*
chunk
;
/* Throw away unacknowledged chunks. */
list_for_each
(
pos
,
&
q
->
asoc
->
peer
.
transport_addr_list
)
{
transport
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
transport
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
while
((
lchunk
=
sctp_list_dequeue
(
&
transport
->
transmitted
)))
{
chunk
=
list_entry
(
lchunk
,
sctp_chunk_t
,
transmitted_list
);
...
...
@@ -224,13 +224,13 @@ void sctp_retransmit_insert(struct list_head *tlchunk, struct sctp_outq *q)
}
/* Mark all the eligible packets on a transport for retransmission. */
void
sctp_retransmit_mark
(
struct
sctp_outq
*
q
,
sctp_transport_t
*
transport
,
void
sctp_retransmit_mark
(
struct
sctp_outq
*
q
,
struct
sctp_transport
*
transport
,
__u8
fast_retransmit
)
{
struct
list_head
*
lchunk
,
*
ltemp
;
sctp_chunk_t
*
chunk
;
/* Walk through the specified transmitted queue. */
list_for_each_safe
(
lchunk
,
ltemp
,
&
transport
->
transmitted
)
{
chunk
=
list_entry
(
lchunk
,
sctp_chunk_t
,
transmitted_list
);
...
...
@@ -295,7 +295,7 @@ void sctp_retransmit_mark(struct sctp_outq *q, sctp_transport_t *transport,
/* Mark all the eligible packets on a transport for retransmission and force
* one packet out.
*/
void
sctp_retransmit
(
struct
sctp_outq
*
q
,
s
ctp_transport_
t
*
transport
,
void
sctp_retransmit
(
struct
sctp_outq
*
q
,
s
truct
sctp_transpor
t
*
transport
,
sctp_retransmit_reason_t
reason
)
{
int
error
=
0
;
...
...
@@ -334,7 +334,7 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, sctp_packet_t *pkt,
{
struct
list_head
*
lqueue
;
struct
list_head
*
lchunk
;
s
ctp_transport_
t
*
transport
=
pkt
->
transport
;
s
truct
sctp_transpor
t
*
transport
=
pkt
->
transport
;
sctp_xmit_t
status
;
sctp_chunk_t
*
chunk
;
sctp_association_t
*
asoc
;
...
...
@@ -442,7 +442,7 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, sctp_packet_t *pkt,
void
sctp_xmit_frag
(
struct
sctp_outq
*
q
,
struct
sk_buff
*
pos
,
sctp_packet_t
*
packet
,
sctp_chunk_t
*
frag
,
__u32
tsn
)
{
s
ctp_transport_
t
*
transport
=
packet
->
transport
;
s
truct
sctp_transpor
t
*
transport
=
packet
->
transport
;
struct
sk_buff_head
*
queue
=
&
q
->
out
;
sctp_xmit_t
status
;
int
error
;
...
...
@@ -655,8 +655,8 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
sctp_packet_phandler_t
*
s_ecne_handler
=
NULL
;
sctp_packet_phandler_t
*
ecne_handler
=
NULL
;
struct
sk_buff_head
*
queue
;
s
ctp_transport_
t
*
transport
=
NULL
;
s
ctp_transport_
t
*
new_transport
;
s
truct
sctp_transpor
t
*
transport
=
NULL
;
s
truct
sctp_transpor
t
*
new_transport
;
sctp_chunk_t
*
chunk
;
sctp_xmit_t
status
;
int
error
=
0
;
...
...
@@ -967,8 +967,9 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
* --xguo
*/
while
((
ltransport
=
sctp_list_dequeue
(
&
transport_list
))
!=
NULL
)
{
sctp_transport_t
*
t
=
list_entry
(
ltransport
,
sctp_transport_t
,
send_ready
);
struct
sctp_transport
*
t
=
list_entry
(
ltransport
,
struct
sctp_transport
,
send_ready
);
if
(
t
!=
transport
)
transport
=
t
;
...
...
@@ -1020,7 +1021,7 @@ static __u32 sctp_highest_new_tsn(sctp_sackhdr_t *sack,
sctp_association_t
*
asoc
)
{
struct
list_head
*
ltransport
,
*
lchunk
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_chunk_t
*
chunk
;
__u32
highest_new_tsn
,
tsn
;
struct
list_head
*
transport_list
=
&
asoc
->
peer
.
transport_addr_list
;
...
...
@@ -1028,7 +1029,7 @@ static __u32 sctp_highest_new_tsn(sctp_sackhdr_t *sack,
highest_new_tsn
=
ntohl
(
sack
->
cum_tsn_ack
);
list_for_each
(
ltransport
,
transport_list
)
{
transport
=
list_entry
(
ltransport
,
s
ctp_transport_
t
,
transport
=
list_entry
(
ltransport
,
s
truct
sctp_transpor
t
,
transports
);
list_for_each
(
lchunk
,
&
transport
->
transmitted
)
{
chunk
=
list_entry
(
lchunk
,
sctp_chunk_t
,
...
...
@@ -1053,7 +1054,7 @@ static __u32 sctp_highest_new_tsn(sctp_sackhdr_t *sack,
int
sctp_outq_sack
(
struct
sctp_outq
*
q
,
sctp_sackhdr_t
*
sack
)
{
sctp_association_t
*
asoc
=
q
->
asoc
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_chunk_t
*
tchunk
;
struct
list_head
*
lchunk
,
*
transport_list
,
*
pos
;
sctp_sack_variable_t
*
frags
=
sack
->
variable
;
...
...
@@ -1089,7 +1090,8 @@ int sctp_outq_sack(struct sctp_outq *q, sctp_sackhdr_t *sack)
* This is a MASSIVE candidate for optimization.
*/
list_for_each
(
pos
,
transport_list
)
{
transport
=
list_entry
(
pos
,
sctp_transport_t
,
transports
);
transport
=
list_entry
(
pos
,
struct
sctp_transport
,
transports
);
sctp_check_transmitted
(
q
,
&
transport
->
transmitted
,
transport
,
sack
,
highest_new_tsn
);
}
...
...
@@ -1142,7 +1144,8 @@ int sctp_outq_sack(struct sctp_outq *q, sctp_sackhdr_t *sack)
goto
finish
;
list_for_each
(
pos
,
transport_list
)
{
transport
=
list_entry
(
pos
,
sctp_transport_t
,
transports
);
transport
=
list_entry
(
pos
,
struct
sctp_transport
,
transports
);
q
->
empty
=
q
->
empty
&&
list_empty
(
&
transport
->
transmitted
);
if
(
!
q
->
empty
)
goto
finish
;
...
...
@@ -1178,7 +1181,7 @@ int sctp_outq_is_empty(const struct sctp_outq *q)
*/
static
void
sctp_check_transmitted
(
struct
sctp_outq
*
q
,
struct
list_head
*
transmitted_queue
,
s
ctp_transport_
t
*
transport
,
s
truct
sctp_transpor
t
*
transport
,
sctp_sackhdr_t
*
sack
,
__u32
highest_new_tsn_in_sack
)
{
...
...
net/sctp/sm_make_chunk.c
View file @
030ce1c7
...
...
@@ -897,7 +897,7 @@ sctp_chunk_t *sctp_make_abort_user(const sctp_association_t *asoc,
/* Make a HEARTBEAT chunk. */
sctp_chunk_t
*
sctp_make_heartbeat
(
const
sctp_association_t
*
asoc
,
const
s
ctp_transport_
t
*
transport
,
const
s
truct
sctp_transpor
t
*
transport
,
const
void
*
payload
,
const
size_t
paylen
)
{
sctp_chunk_t
*
retval
=
sctp_make_chunk
(
asoc
,
SCTP_CID_HEARTBEAT
,
...
...
@@ -909,7 +909,7 @@ sctp_chunk_t *sctp_make_heartbeat(const sctp_association_t *asoc,
/* Cast away the 'const', as this is just telling the chunk
* what transport it belongs to.
*/
retval
->
transport
=
(
s
ctp_transport_
t
*
)
transport
;
retval
->
transport
=
(
s
truct
sctp_transpor
t
*
)
transport
;
retval
->
subh
.
hbs_hdr
=
sctp_addto_chunk
(
retval
,
paylen
,
payload
);
nodata:
...
...
@@ -1686,7 +1686,7 @@ int sctp_process_init(sctp_association_t *asoc, sctp_cid_t cid,
int
priority
)
{
union
sctp_params
param
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
struct
list_head
*
pos
,
*
temp
;
char
*
cookie
;
...
...
@@ -1761,7 +1761,7 @@ int sctp_process_init(sctp_association_t *asoc, sctp_cid_t cid,
* advertised window).
*/
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
transport
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
transport
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
transport
->
ssthresh
=
asoc
->
peer
.
i
.
a_rwnd
;
}
...
...
@@ -1801,7 +1801,7 @@ int sctp_process_init(sctp_association_t *asoc, sctp_cid_t cid,
clean_up:
/* Release the transport structures. */
list_for_each_safe
(
pos
,
temp
,
&
asoc
->
peer
.
transport_addr_list
)
{
transport
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
transport
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
list_del
(
pos
);
sctp_transport_free
(
transport
);
}
...
...
net/sctp/sm_sideeffect.c
View file @
030ce1c7
...
...
@@ -56,33 +56,31 @@
#include <net/sctp/sm.h>
/* Do forward declarations of static functions. */
static
void
sctp_do_ecn_ce_work
(
sctp_association_t
*
asoc
,
__u32
lowest_tsn
);
static
void
sctp_do_ecn_ce_work
(
sctp_association_t
*
,
__u32
lowest_tsn
);
static
sctp_chunk_t
*
sctp_do_ecn_ecne_work
(
sctp_association_t
*
asoc
,
__u32
lowest_tsn
,
sctp_chunk_t
*
);
static
void
sctp_do_ecn_cwr_work
(
sctp_association_t
*
asoc
,
__u32
lowest_tsn
);
static
void
sctp_do_8_2_transport_strike
(
sctp_association_t
*
asoc
,
sctp_transport_t
*
transport
);
static
void
sctp_cmd_init_failed
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
asoc
);
static
void
sctp_cmd_assoc_failed
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
asoc
,
sctp_event_t
event_type
,
sctp_subtype_t
stype
,
static
void
sctp_do_ecn_cwr_work
(
sctp_association_t
*
,
__u32
lowest_tsn
);
static
void
sctp_do_8_2_transport_strike
(
sctp_association_t
*
,
struct
sctp_transport
*
);
static
void
sctp_cmd_init_failed
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
);
static
void
sctp_cmd_assoc_failed
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
sctp_event_t
,
sctp_subtype_t
,
sctp_chunk_t
*
chunk
);
static
int
sctp_cmd_process_init
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
asoc
,
static
int
sctp_cmd_process_init
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
sctp_chunk_t
*
chunk
,
sctp_init_chunk_t
*
peer_init
,
int
priority
);
static
void
sctp_cmd_hb_timers_start
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
);
static
void
sctp_cmd_hb_timers_update
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
sctp_transport_t
*
);
static
void
sctp_cmd_hb_timers_stop
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
);
static
void
sctp_cmd_hb_timer_update
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
struct
sctp_transport
*
);
static
void
sctp_cmd_set_bind_addrs
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
sctp_bind_addr_t
*
);
static
void
sctp_cmd_transport_reset
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
s
ctp_transport_
t
*
);
s
truct
sctp_transpor
t
*
);
static
void
sctp_cmd_transport_on
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
s
ctp_transport_
t
*
,
sctp_chunk_t
*
);
s
truct
sctp_transpor
t
*
,
sctp_chunk_t
*
);
static
int
sctp_cmd_process_sack
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
sctp_sackhdr_t
*
);
static
void
sctp_cmd_setup_t2
(
sctp_cmd_seq_t
*
,
sctp_association_t
*
,
...
...
@@ -264,7 +262,7 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
struct
list_head
*
pos
;
struct
timer_list
*
timer
;
unsigned
long
timeout
;
s
ctp_transport_
t
*
t
;
s
truct
sctp_transpor
t
*
t
;
sctp_sackhdr_t
sackh
;
if
(
SCTP_EVENT_T_TIMEOUT
!=
event_type
)
...
...
@@ -503,7 +501,7 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
* COOKIE-ECHO we need to resend.
*/
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
t
=
list_entry
(
pos
,
s
ctp_transport_
t
,
t
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
sctp_retransmit_mark
(
&
asoc
->
outqueue
,
t
,
0
);
}
...
...
@@ -573,9 +571,13 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_cmd_hb_timers_start
(
commands
,
asoc
);
break
;
case
SCTP_CMD_HB_TIMER
S
_UPDATE
:
case
SCTP_CMD_HB_TIMER_UPDATE
:
t
=
command
->
obj
.
transport
;
sctp_cmd_hb_timers_update
(
commands
,
asoc
,
t
);
sctp_cmd_hb_timer_update
(
commands
,
asoc
,
t
);
break
;
case
SCTP_CMD_HB_TIMERS_STOP
:
sctp_cmd_hb_timers_stop
(
commands
,
asoc
);
break
;
case
SCTP_CMD_REPORT_ERROR
:
...
...
@@ -657,7 +659,7 @@ static sctp_chunk_t *sctp_do_ecn_ecne_work(sctp_association_t *asoc,
* recent than the last response.
*/
if
(
TSN_lt
(
asoc
->
last_cwr_tsn
,
lowest_tsn
))
{
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
/* Find which transport's congestion variables
* need to be adjusted.
...
...
@@ -803,7 +805,7 @@ void sctp_do_TSNdup(sctp_association_t *asoc, sctp_chunk_t *chunk, long gap)
void
sctp_generate_t3_rtx_event
(
unsigned
long
peer
)
{
int
error
;
s
ctp_transport_t
*
transport
=
(
sctp_transport_
t
*
)
peer
;
s
truct
sctp_transport
*
transport
=
(
struct
sctp_transpor
t
*
)
peer
;
sctp_association_t
*
asoc
=
transport
->
asoc
;
/* Check whether a task is in the sock. */
...
...
@@ -918,7 +920,7 @@ void sctp_generate_autoclose_event(unsigned long data)
void
sctp_generate_heartbeat_event
(
unsigned
long
data
)
{
int
error
=
0
;
s
ctp_transport_t
*
transport
=
(
sctp_transport_
t
*
)
data
;
s
truct
sctp_transport
*
transport
=
(
struct
sctp_transpor
t
*
)
data
;
sctp_association_t
*
asoc
=
transport
->
asoc
;
sctp_bh_lock_sock
(
asoc
->
base
.
sk
);
...
...
@@ -991,7 +993,7 @@ sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
*
*/
static
void
sctp_do_8_2_transport_strike
(
sctp_association_t
*
asoc
,
s
ctp_transport_
t
*
transport
)
s
truct
sctp_transpor
t
*
transport
)
{
/* The check for association's overall error counter exceeding the
* threshold is done in the state function.
...
...
@@ -1119,7 +1121,7 @@ static int sctp_cmd_process_init(sctp_cmd_seq_t *commands,
static
void
sctp_cmd_hb_timers_start
(
sctp_cmd_seq_t
*
cmds
,
sctp_association_t
*
asoc
)
{
s
ctp_transport_
t
*
t
;
s
truct
sctp_transpor
t
*
t
;
struct
list_head
*
pos
;
/* Start a heartbeat timer for each transport on the association.
...
...
@@ -1127,22 +1129,35 @@ static void sctp_cmd_hb_timers_start(sctp_cmd_seq_t *cmds,
* the needed data structures go away.
*/
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
t
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
if
(
!
mod_timer
(
&
t
->
hb_timer
,
t
->
hb_interval
+
t
->
rto
+
sctp_jitter
(
t
->
rto
)
+
jiffies
))
{
t
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
if
(
!
mod_timer
(
&
t
->
hb_timer
,
sctp_transport_timeout
(
t
)))
sctp_transport_hold
(
t
);
}
}
static
void
sctp_cmd_hb_timers_stop
(
sctp_cmd_seq_t
*
cmds
,
sctp_association_t
*
asoc
)
{
struct
sctp_transport
*
t
;
struct
list_head
*
pos
;
/* Stop all heartbeat timers. */
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
t
=
list_entry
(
pos
,
struct
sctp_transport
,
transports
);
if
(
del_timer
(
&
t
->
hb_timer
))
sctp_transport_put
(
t
);
}
}
/* Helper function to update the heartbeat timer. */
static
void
sctp_cmd_hb_timer
s
_update
(
sctp_cmd_seq_t
*
cmds
,
static
void
sctp_cmd_hb_timer_update
(
sctp_cmd_seq_t
*
cmds
,
sctp_association_t
*
asoc
,
sctp_transport_
t
*
t
)
struct
sctp_transpor
t
*
t
)
{
/* Update the heartbeat timer. */
if
(
!
mod_timer
(
&
t
->
hb_timer
,
t
->
hb_interval
+
t
->
rto
+
sctp_jitter
(
t
->
rto
)
+
jiffies
))
if
(
!
mod_timer
(
&
t
->
hb_timer
,
sctp_transport_timeout
(
t
)))
sctp_transport_hold
(
t
);
}
...
...
@@ -1166,7 +1181,8 @@ void sctp_cmd_set_bind_addrs(sctp_cmd_seq_t *cmds, sctp_association_t *asoc,
/* Helper function to handle the reception of an HEARTBEAT ACK. */
static
void
sctp_cmd_transport_on
(
sctp_cmd_seq_t
*
cmds
,
sctp_association_t
*
asoc
,
sctp_transport_t
*
t
,
sctp_chunk_t
*
chunk
)
struct
sctp_transport
*
t
,
sctp_chunk_t
*
chunk
)
{
sctp_sender_hb_info_t
*
hbinfo
;
...
...
@@ -1198,7 +1214,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
*/
static
void
sctp_cmd_transport_reset
(
sctp_cmd_seq_t
*
cmds
,
sctp_association_t
*
asoc
,
s
ctp_transport_
t
*
t
)
s
truct
sctp_transpor
t
*
t
)
{
sctp_transport_lower_cwnd
(
t
,
SCTP_LOWER_CWND_INACTIVE
);
...
...
@@ -1235,7 +1251,7 @@ static int sctp_cmd_process_sack(sctp_cmd_seq_t *cmds,
static
void
sctp_cmd_setup_t2
(
sctp_cmd_seq_t
*
cmds
,
sctp_association_t
*
asoc
,
sctp_chunk_t
*
chunk
)
{
s
ctp_transport_
t
*
t
;
s
truct
sctp_transpor
t
*
t
;
t
=
sctp_assoc_choose_shutdown_transport
(
asoc
);
asoc
->
shutdown_last_sent_to
=
t
;
...
...
net/sctp/sm_statefuns.c
View file @
030ce1c7
...
...
@@ -678,7 +678,7 @@ sctp_disposition_t sctp_sf_heartbeat(const sctp_endpoint_t *ep,
void
*
arg
,
sctp_cmd_seq_t
*
commands
)
{
s
ctp_transport_t
*
transport
=
(
sctp_transport_
t
*
)
arg
;
s
truct
sctp_transport
*
transport
=
(
struct
sctp_transpor
t
*
)
arg
;
sctp_chunk_t
*
reply
;
sctp_sender_hb_info_t
hbinfo
;
size_t
paylen
=
0
;
...
...
@@ -711,7 +711,7 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const sctp_endpoint_t *ep,
void
*
arg
,
sctp_cmd_seq_t
*
commands
)
{
s
ctp_transport_t
*
transport
=
(
sctp_transport_
t
*
)
arg
;
s
truct
sctp_transport
*
transport
=
(
struct
sctp_transpor
t
*
)
arg
;
if
(
asoc
->
overall_error_count
>=
asoc
->
overall_error_threshold
)
{
/* CMD_ASSOC_FAILED calls CMD_DELETE_TCB. */
...
...
@@ -737,7 +737,7 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const sctp_endpoint_t *ep,
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_TRANSPORT_RESET
,
SCTP_TRANSPORT
(
transport
));
}
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_HB_TIMER
S
_UPDATE
,
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_HB_TIMER_UPDATE
,
SCTP_TRANSPORT
(
transport
));
return
SCTP_DISPOSITION_CONSUME
;
...
...
@@ -842,7 +842,7 @@ sctp_disposition_t sctp_sf_backbeat_8_3(const sctp_endpoint_t *ep,
{
sctp_chunk_t
*
chunk
=
arg
;
union
sctp_addr
from_addr
;
s
ctp_transport_
t
*
link
;
s
truct
sctp_transpor
t
*
link
;
sctp_sender_hb_info_t
*
hbinfo
;
unsigned
long
max_interval
;
...
...
@@ -944,7 +944,7 @@ static int sctp_sf_check_restart_addrs(const sctp_association_t *new_asoc,
sctp_chunk_t
*
init
,
sctp_cmd_seq_t
*
commands
)
{
s
ctp_transport_
t
*
new_addr
,
*
addr
;
s
truct
sctp_transpor
t
*
new_addr
,
*
addr
;
struct
list_head
*
pos
,
*
pos2
;
int
found
;
...
...
@@ -963,10 +963,11 @@ static int sctp_sf_check_restart_addrs(const sctp_association_t *new_asoc,
found
=
0
;
list_for_each
(
pos
,
&
new_asoc
->
peer
.
transport_addr_list
)
{
new_addr
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
new_addr
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
found
=
0
;
list_for_each
(
pos2
,
&
asoc
->
peer
.
transport_addr_list
)
{
addr
=
list_entry
(
pos2
,
sctp_transport_t
,
transports
);
addr
=
list_entry
(
pos2
,
struct
sctp_transport
,
transports
);
if
(
sctp_cmp_addr_exact
(
&
new_addr
->
ipaddr
,
&
addr
->
ipaddr
))
{
found
=
1
;
...
...
@@ -1629,7 +1630,7 @@ sctp_disposition_t sctp_sf_do_5_2_4_dupcook(const sctp_endpoint_t *ep,
new_asoc
);
break
;
case
'C'
:
/* Collisio
u
n case C. */
case
'C'
:
/* Collision case C. */
retval
=
sctp_sf_do_dupcook_c
(
ep
,
asoc
,
chunk
,
commands
,
new_asoc
);
break
;
...
...
@@ -1799,7 +1800,7 @@ sctp_disposition_t sctp_sf_do_5_2_6_stale(const sctp_endpoint_t *ep,
sctp_cookie_preserve_param_t
bht
;
sctp_errhdr_t
*
err
;
struct
list_head
*
pos
;
s
ctp_transport_
t
*
t
;
s
truct
sctp_transpor
t
*
t
;
sctp_chunk_t
*
reply
;
sctp_bind_addr_t
*
bp
;
int
attempts
;
...
...
@@ -1848,9 +1849,11 @@ sctp_disposition_t sctp_sf_do_5_2_6_stale(const sctp_endpoint_t *ep,
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_COUNTER_INC
,
SCTP_COUNTER
(
SCTP_COUNTER_INIT_ERROR
));
/* If we've sent any data bundled with COOKIE-ECHO we need to resend. */
/* If we've sent any data bundled with COOKIE-ECHO we need to
* resend.
*/
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
t
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
t
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_RETRAN
,
SCTP_TRANSPORT
(
t
));
}
...
...
@@ -3767,7 +3770,7 @@ sctp_disposition_t sctp_sf_do_prm_requestheartbeat(
void
*
arg
,
sctp_cmd_seq_t
*
commands
)
{
return
sctp_sf_heartbeat
(
ep
,
asoc
,
type
,
(
s
ctp_transport_
t
*
)
arg
,
return
sctp_sf_heartbeat
(
ep
,
asoc
,
type
,
(
s
truct
sctp_transpor
t
*
)
arg
,
commands
);
}
...
...
@@ -3837,6 +3840,13 @@ sctp_disposition_t sctp_sf_do_9_2_start_shutdown(const sctp_endpoint_t *ep,
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_NEW_STATE
,
SCTP_STATE
(
SCTP_STATE_SHUTDOWN_SENT
));
/* sctp-implguide 2.10 Issues with Heartbeating and failover
*
* HEARTBEAT ... is discontinued after sending either SHUTDOWN
* or SHUTDOWN-ACK.
*/
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_HB_TIMERS_STOP
,
SCTP_NULL
());
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_REPLY
,
SCTP_CHUNK
(
reply
));
return
SCTP_DISPOSITION_CONSUME
;
...
...
@@ -3889,6 +3899,14 @@ sctp_disposition_t sctp_sf_do_9_2_shutdown_ack(const sctp_endpoint_t *ep,
/* Enter the SHUTDOWN-ACK-SENT state. */
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_NEW_STATE
,
SCTP_STATE
(
SCTP_STATE_SHUTDOWN_ACK_SENT
));
/* sctp-implguide 2.10 Issues with Heartbeating and failover
*
* HEARTBEAT ... is discontinued after sending either SHUTDOWN
* or SHUTDOWN-ACK.
*/
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_HB_TIMERS_STOP
,
SCTP_NULL
());
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_REPLY
,
SCTP_CHUNK
(
reply
));
return
SCTP_DISPOSITION_CONSUME
;
...
...
@@ -3933,7 +3951,7 @@ sctp_disposition_t sctp_sf_do_6_3_3_rtx(const sctp_endpoint_t *ep,
void
*
arg
,
sctp_cmd_seq_t
*
commands
)
{
s
ctp_transport_
t
*
transport
=
arg
;
s
truct
sctp_transpor
t
*
transport
=
arg
;
if
(
asoc
->
overall_error_count
>=
asoc
->
overall_error_threshold
)
{
/* CMD_ASSOC_FAILED calls CMD_DELETE_TCB. */
...
...
@@ -4333,7 +4351,7 @@ sctp_packet_t *sctp_ootb_pkt_new(const sctp_association_t *asoc,
const
sctp_chunk_t
*
chunk
)
{
sctp_packet_t
*
packet
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
__u16
sport
;
__u16
dport
;
__u32
vtag
;
...
...
net/sctp/sm_statetable.c
View file @
030ce1c7
...
...
@@ -206,7 +206,7 @@ sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
/* SCTP_STATE_COOKIE_WAIT */
\
{.fn = sctp_sf_violation, .name = "sctp_sf_violation"}, \
/* SCTP_STATE_COOKIE_ECHOED */
\
{.fn = sctp_sf_
not_impl, .name = "sctp_sf_not_impl
"}, \
{.fn = sctp_sf_
discard_chunk, .name = "sctp_sf_discard_chunk
"}, \
/* SCTP_STATE_ESTABLISHED */
\
{.fn = sctp_sf_backbeat_8_3, .name = "sctp_sf_backbeat_8_3"}, \
/* SCTP_STATE_SHUTDOWN_PENDING */
\
...
...
@@ -216,7 +216,7 @@ sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
/* SCTP_STATE_SHUTDOWN_RECEIVED */
\
{.fn = sctp_sf_backbeat_8_3, .name = "sctp_sf_backbeat_8_3"}, \
/* SCTP_STATE_SHUTDOWN_ACK_SENT */
\
{.fn = sctp_sf_
not_impl, .name = "sctp_sf_not_impl
"}, \
{.fn = sctp_sf_
discard_chunk, .name = "sctp_sf_discard_chunk
"}, \
}
/* TYPE_SCTP_HEARTBEAT_ACK */
#define TYPE_SCTP_ABORT { \
...
...
@@ -1089,11 +1089,11 @@ sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STA
/* SCTP_STATE_SHUTDOWN_PENDING */
\
{.fn = sctp_sf_sendbeat_8_3, .name = "sctp_sf_sendbeat_8_3"}, \
/* SCTP_STATE_SHUTDOWN_SENT */
\
{.fn = sctp_sf_
not_impl, .name = "sctp_sf_not_impl
"}, \
{.fn = sctp_sf_
timer_ignore, .name = "sctp_sf_timer_ignore
"}, \
/* SCTP_STATE_SHUTDOWN_RECEIVED */
\
{.fn = sctp_sf_
not_impl, .name = "sctp_sf_not_impl
"}, \
{.fn = sctp_sf_
sendbeat_8_3, .name = "sctp_sf_sendbeat_8_3
"}, \
/* SCTP_STATE_SHUTDOWN_ACK_SENT */
\
{.fn = sctp_sf_
not_impl, .name = "sctp_sf_not_impl
"}, \
{.fn = sctp_sf_
timer_ignore, .name = "sctp_sf_timer_ignore
"}, \
}
#define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
...
...
net/sctp/socket.c
View file @
030ce1c7
...
...
@@ -717,7 +717,7 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
sctp_opt_t
*
sp
;
sctp_endpoint_t
*
ep
;
sctp_association_t
*
new_asoc
=
NULL
,
*
asoc
=
NULL
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_chunk_t
*
chunk
=
NULL
;
union
sctp_addr
to
;
struct
sockaddr
*
msg_name
=
NULL
;
...
...
@@ -1253,7 +1253,7 @@ static inline int sctp_setsockopt_set_peer_addr_params(struct sock *sk,
struct
sctp_paddrparams
params
;
sctp_association_t
*
asoc
;
union
sctp_addr
*
addr
;
s
ctp_transport_
t
*
trans
;
s
truct
sctp_transpor
t
*
trans
;
int
error
;
if
(
optlen
!=
sizeof
(
struct
sctp_paddrparams
))
...
...
@@ -1442,7 +1442,7 @@ SCTP_STATIC int sctp_connect(struct sock *sk, struct sockaddr *uaddr,
sctp_opt_t
*
sp
;
sctp_endpoint_t
*
ep
;
sctp_association_t
*
asoc
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
union
sctp_addr
to
;
sctp_scope_t
scope
;
long
timeo
;
...
...
@@ -1659,7 +1659,7 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
struct
sctp_status
status
;
sctp_endpoint_t
*
ep
;
sctp_association_t
*
assoc
=
NULL
;
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
sctp_assoc_t
associd
;
int
retval
=
0
;
...
...
@@ -1878,7 +1878,7 @@ static inline int sctp_getsockopt_get_peer_addr_params(struct sock *sk,
struct
sctp_paddrparams
params
;
sctp_association_t
*
asoc
;
union
sctp_addr
*
addr
;
s
ctp_transport_
t
*
trans
;
s
truct
sctp_transpor
t
*
trans
;
if
(
len
!=
sizeof
(
struct
sctp_paddrparams
))
return
-
EINVAL
;
...
...
@@ -1962,7 +1962,7 @@ static inline int sctp_getsockopt_get_peer_addrs(struct sock *sk, int len,
struct
list_head
*
pos
;
int
cnt
=
0
;
struct
sctp_getaddrs
getaddrs
;
s
ctp_transport_
t
*
from
;
s
truct
sctp_transpor
t
*
from
;
struct
sockaddr_storage
*
to
;
if
(
len
!=
sizeof
(
struct
sctp_getaddrs
))
...
...
@@ -1981,7 +1981,7 @@ static inline int sctp_getsockopt_get_peer_addrs(struct sock *sk, int len,
to
=
getaddrs
.
addrs
;
list_for_each
(
pos
,
&
asoc
->
peer
.
transport_addr_list
)
{
from
=
list_entry
(
pos
,
s
ctp_transport_
t
,
transports
);
from
=
list_entry
(
pos
,
s
truct
sctp_transpor
t
,
transports
);
if
(
copy_to_user
(
to
,
&
from
->
ipaddr
,
sizeof
(
from
->
ipaddr
)))
return
-
EFAULT
;
to
++
;
...
...
net/sctp/transport.c
View file @
030ce1c7
/* SCTP kernel reference Implementation
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 International Business Machines Corp.
* Copyright (c) 2001
-2003
International Business Machines Corp.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 La Monte H.P. Yarroll
*
...
...
@@ -54,11 +54,12 @@
/* 1st Level Abstractions. */
/* Allocate and initialize a new transport. */
sctp_transport_t
*
sctp_transport_new
(
const
union
sctp_addr
*
addr
,
int
priority
)
struct
sctp_transport
*
sctp_transport_new
(
const
union
sctp_addr
*
addr
,
int
priority
)
{
s
ctp_transport_
t
*
transport
;
s
truct
sctp_transpor
t
*
transport
;
transport
=
t_new
(
s
ctp_transport_
t
,
priority
);
transport
=
t_new
(
s
truct
sctp_transpor
t
,
priority
);
if
(
!
transport
)
goto
fail
;
...
...
@@ -78,7 +79,7 @@ sctp_transport_t *sctp_transport_new(const union sctp_addr *addr, int priority)
}
/* Intialize a new transport from provided memory. */
s
ctp_transport_t
*
sctp_transport_init
(
sctp_transport_
t
*
peer
,
s
truct
sctp_transport
*
sctp_transport_init
(
struct
sctp_transpor
t
*
peer
,
const
union
sctp_addr
*
addr
,
int
priority
)
{
...
...
@@ -140,7 +141,7 @@ sctp_transport_t *sctp_transport_init(sctp_transport_t *peer,
/* This transport is no longer needed. Free up if possible, or
* delay until it last reference count.
*/
void
sctp_transport_free
(
s
ctp_transport_
t
*
transport
)
void
sctp_transport_free
(
s
truct
sctp_transpor
t
*
transport
)
{
transport
->
dead
=
1
;
...
...
@@ -154,7 +155,7 @@ void sctp_transport_free(sctp_transport_t *transport)
/* Destroy the transport data structure.
* Assumes there are no more users of this structure.
*/
void
sctp_transport_destroy
(
s
ctp_transport_
t
*
transport
)
void
sctp_transport_destroy
(
s
truct
sctp_transpor
t
*
transport
)
{
SCTP_ASSERT
(
transport
->
dead
,
"Transport is not dead"
,
return
);
...
...
@@ -169,7 +170,7 @@ void sctp_transport_destroy(sctp_transport_t *transport)
/* Start T3_rtx timer if it is not already running and update the heartbeat
* timer. This routine is called everytime a DATA chunk is sent.
*/
void
sctp_transport_reset_timers
(
s
ctp_transport_
t
*
transport
)
void
sctp_transport_reset_timers
(
s
truct
sctp_transpor
t
*
transport
)
{
/* RFC 2960 6.3.2 Retransmission Timer Rules
*
...
...
@@ -178,16 +179,15 @@ void sctp_transport_reset_timers(sctp_transport_t *transport)
* start it running so that it will expire after the RTO of that
* address.
*/
if
(
!
timer_pending
(
&
transport
->
T3_rtx_timer
))
{
if
(
!
timer_pending
(
&
transport
->
T3_rtx_timer
))
if
(
!
mod_timer
(
&
transport
->
T3_rtx_timer
,
jiffies
+
transport
->
rto
))
sctp_transport_hold
(
transport
);
}
/* When a data chunk is sent, reset the heartbeat interval. */
if
(
!
mod_timer
(
&
transport
->
hb_timer
,
transport
->
hb_interval
+
transport
->
rto
+
sctp_jitter
(
transport
->
rto
)
+
jiffies
))
if
(
!
mod_timer
(
&
transport
->
hb_timer
,
sctp_transport_timeout
(
transport
)))
sctp_transport_hold
(
transport
);
}
...
...
@@ -195,7 +195,7 @@ void sctp_transport_reset_timers(sctp_transport_t *transport)
* Initialize fields from the association or from the sock itself.
* Register the reference count in the association.
*/
void
sctp_transport_set_owner
(
s
ctp_transport_
t
*
transport
,
void
sctp_transport_set_owner
(
s
truct
sctp_transpor
t
*
transport
,
sctp_association_t
*
asoc
)
{
transport
->
asoc
=
asoc
;
...
...
@@ -205,8 +205,8 @@ void sctp_transport_set_owner(sctp_transport_t *transport,
/* Caches the dst entry for a transport's destination address and an optional
* souce address.
*/
void
sctp_transport_route
(
s
ctp_transport_t
*
transport
,
union
sctp_addr
*
saddr
,
struct
sctp_opt
*
opt
)
void
sctp_transport_route
(
s
truct
sctp_transport
*
transport
,
union
sctp_addr
*
saddr
,
struct
sctp_opt
*
opt
)
{
sctp_association_t
*
asoc
=
transport
->
asoc
;
struct
sctp_af
*
af
=
transport
->
af_specific
;
...
...
@@ -277,7 +277,7 @@ void sctp_transport_route(sctp_transport_t *transport, union sctp_addr *saddr,
}
/* Hold a reference to a transport. */
void
sctp_transport_hold
(
s
ctp_transport_
t
*
transport
)
void
sctp_transport_hold
(
s
truct
sctp_transpor
t
*
transport
)
{
atomic_inc
(
&
transport
->
refcnt
);
}
...
...
@@ -285,14 +285,14 @@ void sctp_transport_hold(sctp_transport_t *transport)
/* Release a reference to a transport and clean up
* if there are no more references.
*/
void
sctp_transport_put
(
s
ctp_transport_
t
*
transport
)
void
sctp_transport_put
(
s
truct
sctp_transpor
t
*
transport
)
{
if
(
atomic_dec_and_test
(
&
transport
->
refcnt
))
sctp_transport_destroy
(
transport
);
}
/* Update transport's RTO based on the newly calculated RTT. */
void
sctp_transport_update_rto
(
s
ctp_transport_
t
*
tp
,
__u32
rtt
)
void
sctp_transport_update_rto
(
s
truct
sctp_transpor
t
*
tp
,
__u32
rtt
)
{
sctp_protocol_t
*
proto
=
sctp_get_protocol
();
...
...
@@ -362,8 +362,8 @@ void sctp_transport_update_rto(sctp_transport_t *tp, __u32 rtt)
/* This routine updates the transport's cwnd and partial_bytes_acked
* parameters based on the bytes acked in the received SACK.
*/
void
sctp_transport_raise_cwnd
(
s
ctp_transport_t
*
transport
,
__u32
sack_ctsn
,
__u32
bytes_acked
)
void
sctp_transport_raise_cwnd
(
s
truct
sctp_transport
*
transport
,
__u32
sack_ctsn
,
__u32
bytes_acked
)
{
__u32
cwnd
,
ssthresh
,
flight_size
,
pba
,
pmtu
;
...
...
@@ -391,8 +391,8 @@ void sctp_transport_raise_cwnd(sctp_transport_t *transport, __u32 sack_ctsn,
* two conditions are met can the cwnd be increased otherwise
* the cwnd MUST not be increased. If these conditions are met
* then cwnd MUST be increased by at most the lesser of
* 1) the total size of the previously outstanding DATA
chunk(s)
* acknowledged, and 2) the destination's path MTU.
* 1) the total size of the previously outstanding DATA
*
chunk(s)
acknowledged, and 2) the destination's path MTU.
*/
if
(
bytes_acked
>
pmtu
)
cwnd
+=
pmtu
;
...
...
@@ -405,18 +405,18 @@ void sctp_transport_raise_cwnd(sctp_transport_t *transport, __u32 sack_ctsn,
transport
,
bytes_acked
,
cwnd
,
ssthresh
,
flight_size
,
pba
);
}
else
{
/* RFC 2960 7.2.2 Whenever cwnd is greater than ssthresh,
upon
*
each SACK arrival that advances the Cumulative TSN Ack Point,
*
increase partial_bytes_acked by the total number of bytes of
*
all new chunks acknowledged in that SACK including chunks
*
acknowledged by the new Cumulative TSN Ack and by Gap Ack
* Blocks.
/* RFC 2960 7.2.2 Whenever cwnd is greater than ssthresh,
*
upon each SACK arrival that advances the Cumulative TSN Ack
*
Point, increase partial_bytes_acked by the total number of
*
bytes of all new chunks acknowledged in that SACK including
*
chunks acknowledged by the new Cumulative TSN Ack and by
*
Gap Ack
Blocks.
*
* When partial_bytes_acked is equal to or greater than cwnd
and
*
before the arrival of the SACK the sender had cwnd or more
*
bytes of data outstanding (i.e., before arrival of the SACK,
*
flightsize was greater than or equal to cwnd), increase cwnd
* by MTU, and reset partial_bytes_acked to
* When partial_bytes_acked is equal to or greater than cwnd
*
and before the arrival of the SACK the sender had cwnd or
*
more bytes of data outstanding (i.e., before arrival of the
*
SACK, flightsize was greater than or equal to cwnd),
*
increase cwnd
by MTU, and reset partial_bytes_acked to
* (partial_bytes_acked - cwnd).
*/
pba
+=
bytes_acked
;
...
...
@@ -439,7 +439,7 @@ void sctp_transport_raise_cwnd(sctp_transport_t *transport, __u32 sack_ctsn,
/* This routine is used to lower the transport's cwnd when congestion is
* detected.
*/
void
sctp_transport_lower_cwnd
(
s
ctp_transport_
t
*
transport
,
void
sctp_transport_lower_cwnd
(
s
truct
sctp_transpor
t
*
transport
,
sctp_lower_cwnd_t
reason
)
{
switch
(
reason
)
{
...
...
@@ -516,3 +516,12 @@ void sctp_transport_lower_cwnd(sctp_transport_t *transport,
transport
,
reason
,
transport
->
cwnd
,
transport
->
ssthresh
);
}
/* What is the next timeout value for this transport? */
unsigned
long
sctp_transport_timeout
(
struct
sctp_transport
*
t
)
{
unsigned
long
timeout
;
timeout
=
t
->
hb_interval
+
t
->
rto
+
sctp_jitter
(
t
->
rto
);
timeout
+=
jiffies
;
return
timeout
;
}
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