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Kirill Smelkov
linux
Commits
9b10f4ba
Commit
9b10f4ba
authored
Apr 19, 2004
by
David S. Miller
Browse files
Options
Browse Files
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Plain Diff
Merge nuts.davemloft.net:/disk1/BK/network-2.6
into nuts.davemloft.net:/disk1/BK/net-2.6
parents
28f95425
9e130292
Changes
25
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Showing
25 changed files
with
862 additions
and
324 deletions
+862
-324
include/linux/sctp.h
include/linux/sctp.h
+67
-3
include/linux/sysctl.h
include/linux/sysctl.h
+1
-2
include/net/sctp/command.h
include/net/sctp/command.h
+4
-1
include/net/sctp/constants.h
include/net/sctp/constants.h
+3
-11
include/net/sctp/sctp.h
include/net/sctp/sctp.h
+13
-2
include/net/sctp/sm.h
include/net/sctp/sm.h
+7
-20
include/net/sctp/structs.h
include/net/sctp/structs.h
+56
-68
include/net/sctp/tsnmap.h
include/net/sctp/tsnmap.h
+5
-1
include/net/sctp/ulpqueue.h
include/net/sctp/ulpqueue.h
+5
-1
net/sctp/associola.c
net/sctp/associola.c
+5
-10
net/sctp/chunk.c
net/sctp/chunk.c
+13
-31
net/sctp/debug.c
net/sctp/debug.c
+5
-1
net/sctp/output.c
net/sctp/output.c
+49
-47
net/sctp/outqueue.c
net/sctp/outqueue.c
+219
-92
net/sctp/protocol.c
net/sctp/protocol.c
+7
-1
net/sctp/sm_make_chunk.c
net/sctp/sm_make_chunk.c
+67
-9
net/sctp/sm_sideeffect.c
net/sctp/sm_sideeffect.c
+27
-2
net/sctp/sm_statefuns.c
net/sctp/sm_statefuns.c
+139
-11
net/sctp/sm_statetable.c
net/sctp/sm_statetable.c
+37
-3
net/sctp/socket.c
net/sctp/socket.c
+12
-5
net/sctp/sysctl.c
net/sctp/sysctl.c
+10
-1
net/sctp/transport.c
net/sctp/transport.c
+2
-1
net/sctp/tsnmap.c
net/sctp/tsnmap.c
+36
-1
net/sctp/ulpevent.c
net/sctp/ulpevent.c
+8
-0
net/sctp/ulpqueue.c
net/sctp/ulpqueue.c
+65
-0
No files found.
include/linux/sctp.h
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 200
3
* (C) Copyright IBM Corp. 2001, 200
4
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
...
@@ -93,6 +93,9 @@ typedef enum {
...
@@ -93,6 +93,9 @@ typedef enum {
SCTP_CID_ECN_CWR
=
13
,
SCTP_CID_ECN_CWR
=
13
,
SCTP_CID_SHUTDOWN_COMPLETE
=
14
,
SCTP_CID_SHUTDOWN_COMPLETE
=
14
,
/* PR-SCTP Sec 3.2 */
SCTP_CID_FWD_TSN
=
0xC0
,
/* Use hex, as defined in ADDIP sec. 3.1 */
/* Use hex, as defined in ADDIP sec. 3.1 */
SCTP_CID_ASCONF
=
0xC1
,
SCTP_CID_ASCONF
=
0xC1
,
SCTP_CID_ASCONF_ACK
=
0x80
,
SCTP_CID_ASCONF_ACK
=
0x80
,
...
@@ -168,6 +171,9 @@ typedef enum {
...
@@ -168,6 +171,9 @@ typedef enum {
SCTP_PARAM_SUPPORTED_ADDRESS_TYPES
=
__constant_htons
(
12
),
SCTP_PARAM_SUPPORTED_ADDRESS_TYPES
=
__constant_htons
(
12
),
SCTP_PARAM_ECN_CAPABLE
=
__constant_htons
(
0x8000
),
SCTP_PARAM_ECN_CAPABLE
=
__constant_htons
(
0x8000
),
/* PR-SCTP Sec 3.1 */
SCTP_PARAM_FWD_TSN_SUPPORT
=
__constant_htons
(
0xc000
),
/* Add-IP Extension. Section 3.2 */
/* Add-IP Extension. Section 3.2 */
SCTP_PARAM_ADD_IP
=
__constant_htons
(
0xc001
),
SCTP_PARAM_ADD_IP
=
__constant_htons
(
0xc001
),
SCTP_PARAM_DEL_IP
=
__constant_htons
(
0xc002
),
SCTP_PARAM_DEL_IP
=
__constant_htons
(
0xc002
),
...
@@ -472,9 +478,67 @@ typedef struct sctp_cwr_chunk {
...
@@ -472,9 +478,67 @@ typedef struct sctp_cwr_chunk {
sctp_cwrhdr_t
cwr_hdr
;
sctp_cwrhdr_t
cwr_hdr
;
}
__attribute__
((
packed
))
sctp_cwr_chunk_t
;
}
__attribute__
((
packed
))
sctp_cwr_chunk_t
;
/*
/* PR-SCTP
* ADDIP Section 3.1 New Chunk Types
* 3.2 Forward Cumulative TSN Chunk Definition (FORWARD TSN)
*
* Forward Cumulative TSN chunk has the following format:
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Type = 192 | Flags = 0x00 | Length = Variable |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | New Cumulative TSN |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Stream-1 | Stream Sequence-1 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* \ /
* / \
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Stream-N | Stream Sequence-N |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* Chunk Flags:
*
* Set to all zeros on transmit and ignored on receipt.
*
* New Cumulative TSN: 32 bit u_int
*
* This indicates the new cumulative TSN to the data receiver. Upon
* the reception of this value, the data receiver MUST consider
* any missing TSNs earlier than or equal to this value as received
* and stop reporting them as gaps in any subsequent SACKs.
*
* Stream-N: 16 bit u_int
*
* This field holds a stream number that was skipped by this
* FWD-TSN.
*
* Stream Sequence-N: 16 bit u_int
* This field holds the sequence number associated with the stream
* that was skipped. The stream sequence field holds the largest stream
* sequence number in this stream being skipped. The receiver of
* the FWD-TSN's can use the Stream-N and Stream Sequence-N fields
* to enable delivery of any stranded TSN's that remain on the stream
* re-ordering queues. This field MUST NOT report TSN's corresponding
* to DATA chunk that are marked as unordered. For ordered DATA
* chunks this field MUST be filled in.
*/
*/
struct
sctp_fwdtsn_skip
{
__u16
stream
;
__u16
ssn
;
}
__attribute__
((
packed
));
struct
sctp_fwdtsn_hdr
{
__u32
new_cum_tsn
;
struct
sctp_fwdtsn_skip
skip
[
0
];
}
__attribute
((
packed
));
struct
sctp_fwdtsn_chunk
{
struct
sctp_chunkhdr
chunk_hdr
;
struct
sctp_fwdtsn_hdr
fwdtsn_hdr
;
}
__attribute
((
packed
));
/* ADDIP
/* ADDIP
* Section 3.1.1 Address Configuration Change Chunk (ASCONF)
* Section 3.1.1 Address Configuration Change Chunk (ASCONF)
...
...
include/linux/sysctl.h
View file @
9b10f4ba
...
@@ -602,8 +602,7 @@ enum {
...
@@ -602,8 +602,7 @@ enum {
NET_SCTP_PRESERVE_ENABLE
=
11
,
NET_SCTP_PRESERVE_ENABLE
=
11
,
NET_SCTP_MAX_BURST
=
12
,
NET_SCTP_MAX_BURST
=
12
,
NET_SCTP_ADDIP_ENABLE
=
13
,
NET_SCTP_ADDIP_ENABLE
=
13
,
NET_SCTP_RMEM
=
14
,
NET_SCTP_PRSCTP_ENABLE
=
14
,
NET_SCTP_WMEM
=
15
,
};
};
/* /proc/sys/net/bridge */
/* /proc/sys/net/bridge */
...
...
include/net/sctp/command.h
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 200
3
* (C) Copyright IBM Corp. 2001, 200
4
* Copyright (C) 1999-2001 Cisco, Motorola
* Copyright (C) 1999-2001 Cisco, Motorola
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
...
@@ -29,6 +29,7 @@
...
@@ -29,6 +29,7 @@
* La Monte H.P. Yarroll <piggy@acm.org>
* La Monte H.P. Yarroll <piggy@acm.org>
* Karl Knutson <karl@athena.chicago.il.us>
* Karl Knutson <karl@athena.chicago.il.us>
* Ardelle Fan <ardelle.fan@intel.com>
* Ardelle Fan <ardelle.fan@intel.com>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -90,6 +91,8 @@ typedef enum {
...
@@ -90,6 +91,8 @@ typedef enum {
SCTP_CMD_RENEGE
,
/* Renege data on an association. */
SCTP_CMD_RENEGE
,
/* Renege data on an association. */
SCTP_CMD_SETUP_T4
,
/* ADDIP, setup T4 RTO timer parms. */
SCTP_CMD_SETUP_T4
,
/* ADDIP, setup T4 RTO timer parms. */
SCTP_CMD_PROCESS_OPERR
,
/* Process an ERROR chunk. */
SCTP_CMD_PROCESS_OPERR
,
/* Process an ERROR chunk. */
SCTP_CMD_REPORT_FWDTSN
,
/* Report new cumulative TSN Ack. */
SCTP_CMD_PROCESS_FWDTSN
,
/* Skips were reported, so process further. */
SCTP_CMD_LAST
SCTP_CMD_LAST
}
sctp_verb_t
;
}
sctp_verb_t
;
...
...
include/net/sctp/constants.h
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 200
3
* (C) Copyright IBM Corp. 2001, 200
4
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
...
@@ -57,15 +57,6 @@ enum { SCTP_MAX_STREAM = 0xffff };
...
@@ -57,15 +57,6 @@ enum { SCTP_MAX_STREAM = 0xffff };
enum
{
SCTP_DEFAULT_OUTSTREAMS
=
10
};
enum
{
SCTP_DEFAULT_OUTSTREAMS
=
10
};
enum
{
SCTP_DEFAULT_INSTREAMS
=
SCTP_MAX_STREAM
};
enum
{
SCTP_DEFAULT_INSTREAMS
=
SCTP_MAX_STREAM
};
/* Define the amount of space to reserve for SCTP, IP, LL.
* There is a little bit of waste that we are always allocating
* for ipv6 headers, but this seems worth the simplicity.
*/
#define SCTP_IP_OVERHEAD ((sizeof(struct sctphdr)\
+ sizeof(struct ipv6hdr)\
+ MAX_HEADER))
/* Since CIDs are sparse, we need all four of the following
/* Since CIDs are sparse, we need all four of the following
* symbols. CIDs are dense through SCTP_CID_BASE_MAX.
* symbols. CIDs are dense through SCTP_CID_BASE_MAX.
*/
*/
...
@@ -77,6 +68,8 @@ enum { SCTP_DEFAULT_INSTREAMS = SCTP_MAX_STREAM };
...
@@ -77,6 +68,8 @@ enum { SCTP_DEFAULT_INSTREAMS = SCTP_MAX_STREAM };
#define SCTP_NUM_ADDIP_CHUNK_TYPES 2
#define SCTP_NUM_ADDIP_CHUNK_TYPES 2
#define SCTP_NUM_PRSCTP_CHUNK_TYPES 1
/* These are the different flavours of event. */
/* These are the different flavours of event. */
typedef
enum
{
typedef
enum
{
...
@@ -355,7 +348,6 @@ typedef enum {
...
@@ -355,7 +348,6 @@ typedef enum {
SCTP_XMIT_OK
,
SCTP_XMIT_OK
,
SCTP_XMIT_PMTU_FULL
,
SCTP_XMIT_PMTU_FULL
,
SCTP_XMIT_RWND_FULL
,
SCTP_XMIT_RWND_FULL
,
SCTP_XMIT_MUST_FRAG
,
SCTP_XMIT_NAGLE_DELAY
,
SCTP_XMIT_NAGLE_DELAY
,
}
sctp_xmit_t
;
}
sctp_xmit_t
;
...
...
include/net/sctp/sctp.h
View file @
9b10f4ba
...
@@ -437,12 +437,15 @@ static inline __s32 sctp_jitter(__u32 rto)
...
@@ -437,12 +437,15 @@ static inline __s32 sctp_jitter(__u32 rto)
static
inline
int
sctp_frag_point
(
const
struct
sctp_opt
*
sp
,
int
pmtu
)
static
inline
int
sctp_frag_point
(
const
struct
sctp_opt
*
sp
,
int
pmtu
)
{
{
int
frag
=
pmtu
;
int
frag
=
pmtu
;
frag
-=
SCTP_IP_OVERHEAD
+
sizeof
(
struct
sctp_data_chunk
);
frag
-=
sizeof
(
struct
sctp_sack_chunk
);
frag
-=
sp
->
pf
->
af
->
net_header_len
;
frag
-=
sizeof
(
struct
sctphdr
)
+
sizeof
(
struct
sctp_data_chunk
);
if
(
sp
->
user_frag
)
if
(
sp
->
user_frag
)
frag
=
min_t
(
int
,
frag
,
sp
->
user_frag
);
frag
=
min_t
(
int
,
frag
,
sp
->
user_frag
);
frag
=
min_t
(
int
,
frag
,
SCTP_MAX_CHUNK_LEN
);
return
frag
;
return
frag
;
}
}
...
@@ -472,6 +475,14 @@ for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
...
@@ -472,6 +475,14 @@ for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
err = (sctp_errhdr_t *)((void *)err + \
err = (sctp_errhdr_t *)((void *)err + \
WORD_ROUND(ntohs(err->length))))
WORD_ROUND(ntohs(err->length))))
#define sctp_walk_fwdtsn(pos, chunk)\
_sctp_walk_fwdtsn((pos), (chunk), ntohs((chunk)->chunk_hdr->length) - sizeof(struct sctp_fwdtsn_chunk))
#define _sctp_walk_fwdtsn(pos, chunk, end)\
for (pos = chunk->subh.fwdtsn_hdr->skip;\
(void *)pos <= (void *)chunk->subh.fwdtsn_hdr->skip + end - sizeof(struct sctp_fwdtsn_skip);\
pos++)
/* Round an int up to the next multiple of 4. */
/* Round an int up to the next multiple of 4. */
#define WORD_ROUND(s) (((s)+3)&~3)
#define WORD_ROUND(s) (((s)+3)&~3)
...
...
include/net/sctp/sm.h
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 200
3
* (C) Copyright IBM Corp. 2001, 200
4
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
...
@@ -141,6 +141,9 @@ sctp_state_fn_t sctp_sf_cookie_echoed_err;
...
@@ -141,6 +141,9 @@ sctp_state_fn_t sctp_sf_cookie_echoed_err;
sctp_state_fn_t
sctp_sf_do_5_2_6_stale
;
sctp_state_fn_t
sctp_sf_do_5_2_6_stale
;
sctp_state_fn_t
sctp_sf_do_asconf
;
sctp_state_fn_t
sctp_sf_do_asconf
;
sctp_state_fn_t
sctp_sf_do_asconf_ack
;
sctp_state_fn_t
sctp_sf_do_asconf_ack
;
sctp_state_fn_t
sctp_sf_do_9_2_reshutack
;
sctp_state_fn_t
sctp_sf_eat_fwd_tsn
;
sctp_state_fn_t
sctp_sf_eat_fwd_tsn_fast
;
/* Prototypes for primitive event state functions. */
/* Prototypes for primitive event state functions. */
sctp_state_fn_t
sctp_sf_do_prm_asoc
;
sctp_state_fn_t
sctp_sf_do_prm_asoc
;
...
@@ -170,25 +173,6 @@ sctp_state_fn_t sctp_sf_do_6_3_3_rtx;
...
@@ -170,25 +173,6 @@ sctp_state_fn_t sctp_sf_do_6_3_3_rtx;
sctp_state_fn_t
sctp_sf_do_6_2_sack
;
sctp_state_fn_t
sctp_sf_do_6_2_sack
;
sctp_state_fn_t
sctp_sf_autoclose_timer_expire
;
sctp_state_fn_t
sctp_sf_autoclose_timer_expire
;
/* These are state functions which are either obsolete or not in use yet.
* If any of these functions needs to be revived, it should be renamed with
* the "sctp_sf_xxx" prefix, and be moved to the above prototype groups.
*/
/* Prototypes for chunk state functions. Not in use. */
sctp_state_fn_t
sctp_sf_do_9_2_reshutack
;
sctp_state_fn_t
sctp_sf_do_9_2_reshut
;
sctp_state_fn_t
sctp_sf_do_9_2_shutack
;
/* Prototypes for timeout event state functions. Not in use. */
sctp_state_fn_t
sctp_do_4_2_reinit
;
sctp_state_fn_t
sctp_do_4_3_reecho
;
sctp_state_fn_t
sctp_do_9_2_reshut
;
sctp_state_fn_t
sctp_do_9_2_reshutack
;
sctp_state_fn_t
sctp_do_8_3_hb_err
;
sctp_state_fn_t
sctp_heartoff
;
/* Prototypes for utility support functions. */
/* Prototypes for utility support functions. */
__u8
sctp_get_chunk_type
(
struct
sctp_chunk
*
chunk
);
__u8
sctp_get_chunk_type
(
struct
sctp_chunk
*
chunk
);
const
sctp_sm_table_entry_t
*
sctp_sm_lookup_event
(
sctp_event_t
,
const
sctp_sm_table_entry_t
*
sctp_sm_lookup_event
(
sctp_event_t
,
...
@@ -277,6 +261,9 @@ struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
...
@@ -277,6 +261,9 @@ struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
struct
sctp_chunk
*
asconf
);
struct
sctp_chunk
*
asconf
);
int
sctp_process_asconf_ack
(
struct
sctp_association
*
asoc
,
int
sctp_process_asconf_ack
(
struct
sctp_association
*
asoc
,
struct
sctp_chunk
*
asconf_ack
);
struct
sctp_chunk
*
asconf_ack
);
struct
sctp_chunk
*
sctp_make_fwdtsn
(
const
struct
sctp_association
*
asoc
,
__u32
new_cum_tsn
,
size_t
nstreams
,
struct
sctp_fwdtsn_skip
*
skiplist
);
void
sctp_chunk_assign_tsn
(
struct
sctp_chunk
*
);
void
sctp_chunk_assign_tsn
(
struct
sctp_chunk
*
);
void
sctp_chunk_assign_ssn
(
struct
sctp_chunk
*
);
void
sctp_chunk_assign_ssn
(
struct
sctp_chunk
*
);
...
...
include/net/sctp/structs.h
View file @
9b10f4ba
...
@@ -193,6 +193,9 @@ extern struct sctp_globals {
...
@@ -193,6 +193,9 @@ extern struct sctp_globals {
/* Flag to indicate if addip is enabled. */
/* Flag to indicate if addip is enabled. */
int
addip_enable
;
int
addip_enable
;
/* Flag to indicate if PR-SCTP is enabled. */
int
prsctp_enable
;
}
sctp_globals
;
}
sctp_globals
;
#define sctp_rto_initial (sctp_globals.rto_initial)
#define sctp_rto_initial (sctp_globals.rto_initial)
...
@@ -221,6 +224,7 @@ extern struct sctp_globals {
...
@@ -221,6 +224,7 @@ extern struct sctp_globals {
#define sctp_local_addr_list (sctp_globals.local_addr_list)
#define sctp_local_addr_list (sctp_globals.local_addr_list)
#define sctp_local_addr_lock (sctp_globals.local_addr_lock)
#define sctp_local_addr_lock (sctp_globals.local_addr_lock)
#define sctp_addip_enable (sctp_globals.addip_enable)
#define sctp_addip_enable (sctp_globals.addip_enable)
#define sctp_prsctp_enable (sctp_globals.prsctp_enable)
/* SCTP Socket type: UDP or TCP style. */
/* SCTP Socket type: UDP or TCP style. */
typedef
enum
{
typedef
enum
{
...
@@ -317,6 +321,8 @@ struct sctp_cookie {
...
@@ -317,6 +321,8 @@ struct sctp_cookie {
/* This holds the originating address of the INIT packet. */
/* This holds the originating address of the INIT packet. */
union
sctp_addr
peer_addr
;
union
sctp_addr
peer_addr
;
__u8
prsctp_capable
;
/* This is a shim for my peer's INIT packet, followed by
/* This is a shim for my peer's INIT packet, followed by
* a copy of the raw address list of the association.
* a copy of the raw address list of the association.
* The length of the raw address list is saved in the
* The length of the raw address list is saved in the
...
@@ -413,6 +419,13 @@ static inline __u16 sctp_ssn_next(struct sctp_stream *stream, __u16 id)
...
@@ -413,6 +419,13 @@ static inline __u16 sctp_ssn_next(struct sctp_stream *stream, __u16 id)
return
stream
->
ssn
[
id
]
++
;
return
stream
->
ssn
[
id
]
++
;
}
}
/* Skip over this ssn and all below. */
static
inline
void
sctp_ssn_skip
(
struct
sctp_stream
*
stream
,
__u16
id
,
__u16
ssn
)
{
stream
->
ssn
[
id
]
=
ssn
+
1
;
}
/*
/*
* Pointers to address related SCTP functions.
* Pointers to address related SCTP functions.
* (i.e. things that depend on the address family.)
* (i.e. things that depend on the address family.)
...
@@ -514,8 +527,8 @@ struct sctp_datamsg {
...
@@ -514,8 +527,8 @@ struct sctp_datamsg {
/* Did the messenge fail to send? */
/* Did the messenge fail to send? */
int
send_error
;
int
send_error
;
char
send_failed
;
char
send_failed
;
/* Control whether
fragments from this message can expire
. */
/* Control whether
chunks from this message can be abandoned
. */
char
can_
expire
;
char
can_
abandon
;
};
};
struct
sctp_datamsg
*
sctp_datamsg_from_user
(
struct
sctp_association
*
,
struct
sctp_datamsg
*
sctp_datamsg_from_user
(
struct
sctp_association
*
,
...
@@ -527,8 +540,8 @@ void sctp_datamsg_hold(struct sctp_datamsg *);
...
@@ -527,8 +540,8 @@ void sctp_datamsg_hold(struct sctp_datamsg *);
void
sctp_datamsg_free
(
struct
sctp_datamsg
*
);
void
sctp_datamsg_free
(
struct
sctp_datamsg
*
);
void
sctp_datamsg_track
(
struct
sctp_chunk
*
);
void
sctp_datamsg_track
(
struct
sctp_chunk
*
);
void
sctp_datamsg_assign
(
struct
sctp_datamsg
*
,
struct
sctp_chunk
*
);
void
sctp_datamsg_assign
(
struct
sctp_datamsg
*
,
struct
sctp_chunk
*
);
void
sctp_
datamsg
_fail
(
struct
sctp_chunk
*
,
int
error
);
void
sctp_
chunk
_fail
(
struct
sctp_chunk
*
,
int
error
);
int
sctp_
datamsg_expires
(
struct
sctp_chunk
*
);
int
sctp_
chunk_abandoned
(
struct
sctp_chunk
*
);
/* RFC2960 1.4 Key Terms
/* RFC2960 1.4 Key Terms
...
@@ -583,6 +596,7 @@ struct sctp_chunk {
...
@@ -583,6 +596,7 @@ struct sctp_chunk {
struct
sctp_cwrhdr
*
ecn_cwr_hdr
;
struct
sctp_cwrhdr
*
ecn_cwr_hdr
;
struct
sctp_errhdr
*
err_hdr
;
struct
sctp_errhdr
*
err_hdr
;
struct
sctp_addiphdr
*
addip_hdr
;
struct
sctp_addiphdr
*
addip_hdr
;
struct
sctp_fwdtsn_hdr
*
fwdtsn_hdr
;
}
subh
;
}
subh
;
__u8
*
chunk_end
;
__u8
*
chunk_end
;
...
@@ -667,6 +681,9 @@ struct sctp_packet {
...
@@ -667,6 +681,9 @@ struct sctp_packet {
/* This contains the payload chunks. */
/* This contains the payload chunks. */
struct
sk_buff_head
chunks
;
struct
sk_buff_head
chunks
;
/* This is the overhead of the sctp and ip headers. */
size_t
overhead
;
/* This is the total size of all chunks INCLUDING padding. */
/* This is the total size of all chunks INCLUDING padding. */
size_t
size
;
size_t
size
;
...
@@ -676,16 +693,6 @@ struct sctp_packet {
...
@@ -676,16 +693,6 @@ struct sctp_packet {
*/
*/
struct
sctp_transport
*
transport
;
struct
sctp_transport
*
transport
;
/* Allow a callback for getting a high priority chunk
* bundled early into the packet (This is used for ECNE).
*/
sctp_packet_phandler_t
*
get_prepend_chunk
;
/* This packet should advertise ECN capability to the network
* via the ECT bit.
*/
char
ecn_capable
;
/* This packet contains a COOKIE-ECHO chunk. */
/* This packet contains a COOKIE-ECHO chunk. */
char
has_cookie_echo
;
char
has_cookie_echo
;
...
@@ -698,29 +705,21 @@ struct sctp_packet {
...
@@ -698,29 +705,21 @@ struct sctp_packet {
int
malloced
;
int
malloced
;
};
};
typedef
int
(
sctp_outq_thandler_t
)(
struct
sctp_outq
*
,
void
*
);
struct
sctp_packet
*
sctp_packet_init
(
struct
sctp_packet
*
,
typedef
int
(
sctp_outq_ehandler_t
)(
struct
sctp_outq
*
);
struct
sctp_transport
*
,
typedef
struct
sctp_packet
*
(
sctp_outq_ohandler_init_t
)
__u16
sport
,
__u16
dport
);
(
struct
sctp_packet
*
,
struct
sctp_packet
*
sctp_packet_config
(
struct
sctp_packet
*
,
__u32
vtag
,
int
);
struct
sctp_transport
*
,
sctp_xmit_t
sctp_packet_transmit_chunk
(
struct
sctp_packet
*
,
__u16
sport
,
struct
sctp_chunk
*
);
__u16
dport
);
sctp_xmit_t
sctp_packet_append_chunk
(
struct
sctp_packet
*
,
typedef
struct
sctp_packet
*
(
sctp_outq_ohandler_config_t
)
struct
sctp_chunk
*
);
(
struct
sctp_packet
*
,
int
sctp_packet_transmit
(
struct
sctp_packet
*
);
__u32
vtag
,
int
ecn_capable
,
sctp_packet_phandler_t
*
get_prepend_chunk
);
typedef
sctp_xmit_t
(
sctp_outq_ohandler_t
)(
struct
sctp_packet
*
,
struct
sctp_chunk
*
);
typedef
int
(
sctp_outq_ohandler_force_t
)(
struct
sctp_packet
*
);
sctp_outq_ohandler_init_t
sctp_packet_init
;
sctp_outq_ohandler_config_t
sctp_packet_config
;
sctp_outq_ohandler_t
sctp_packet_append_chunk
;
sctp_outq_ohandler_t
sctp_packet_transmit_chunk
;
sctp_outq_ohandler_force_t
sctp_packet_transmit
;
void
sctp_packet_free
(
struct
sctp_packet
*
);
void
sctp_packet_free
(
struct
sctp_packet
*
);
static
inline
int
sctp_packet_empty
(
struct
sctp_packet
*
packet
)
{
return
(
packet
->
size
==
packet
->
overhead
);
}
/* This represents a remote transport address.
/* This represents a remote transport address.
* For local transport addresses, we just use union sctp_addr.
* For local transport addresses, we just use union sctp_addr.
...
@@ -905,7 +904,7 @@ struct sctp_transport {
...
@@ -905,7 +904,7 @@ struct sctp_transport {
/* A flag which indicates the occurrence of a changeover */
/* A flag which indicates the occurrence of a changeover */
char
changeover_active
;
char
changeover_active
;
/* A
g
lag which indicates whether the change of primary is
/* A
f
lag which indicates whether the change of primary is
* the first switch to this destination address during an
* the first switch to this destination address during an
* active switch.
* active switch.
*/
*/
...
@@ -1008,15 +1007,10 @@ struct sctp_outq {
...
@@ -1008,15 +1007,10 @@ struct sctp_outq {
*/
*/
struct
list_head
retransmit
;
struct
list_head
retransmit
;
/* Call these functions to send chunks down to the next lower
/* Put chunks on this list to save them for FWD TSN processing as
* layer. This is always sctp_packet, but we separate the two
* they were abandoned.
* structures to make testing simpler.
*/
*/
sctp_outq_ohandler_init_t
*
init_output
;
struct
list_head
abandoned
;
sctp_outq_ohandler_config_t
*
config_output
;
sctp_outq_ohandler_t
*
append_output
;
sctp_outq_ohandler_t
*
build_output
;
sctp_outq_ohandler_force_t
*
force_output
;
/* How many unackd bytes do we have in-flight? */
/* How many unackd bytes do we have in-flight? */
__u32
outstanding_bytes
;
__u32
outstanding_bytes
;
...
@@ -1039,12 +1033,6 @@ int sctp_outq_tail(struct sctp_outq *, struct sctp_chunk *chunk);
...
@@ -1039,12 +1033,6 @@ int sctp_outq_tail(struct sctp_outq *, struct sctp_chunk *chunk);
int
sctp_outq_flush
(
struct
sctp_outq
*
,
int
);
int
sctp_outq_flush
(
struct
sctp_outq
*
,
int
);
int
sctp_outq_sack
(
struct
sctp_outq
*
,
struct
sctp_sackhdr
*
);
int
sctp_outq_sack
(
struct
sctp_outq
*
,
struct
sctp_sackhdr
*
);
int
sctp_outq_is_empty
(
const
struct
sctp_outq
*
);
int
sctp_outq_is_empty
(
const
struct
sctp_outq
*
);
int
sctp_outq_set_output_handlers
(
struct
sctp_outq
*
,
sctp_outq_ohandler_init_t
init
,
sctp_outq_ohandler_config_t
config
,
sctp_outq_ohandler_t
append
,
sctp_outq_ohandler_t
build
,
sctp_outq_ohandler_force_t
force
);
void
sctp_outq_restart
(
struct
sctp_outq
*
);
void
sctp_outq_restart
(
struct
sctp_outq
*
);
void
sctp_retransmit
(
struct
sctp_outq
*
,
struct
sctp_transport
*
,
void
sctp_retransmit
(
struct
sctp_outq
*
,
struct
sctp_transport
*
,
...
@@ -1387,16 +1375,25 @@ struct sctp_association {
...
@@ -1387,16 +1375,25 @@ struct sctp_association {
struct
sctp_tsnmap
tsn_map
;
struct
sctp_tsnmap
tsn_map
;
__u8
_map
[
sctp_tsnmap_storage_size
(
SCTP_TSN_MAP_SIZE
)];
__u8
_map
[
sctp_tsnmap_storage_size
(
SCTP_TSN_MAP_SIZE
)];
/* Do we need to sack the peer? */
/* Ack State : This flag indicates if the next received
__u8
sack_needed
;
* : packet is to be responded to with a
* : SACK. This is initializedto 0. When a packet
* : is received it is incremented. If this value
* : reaches 2 or more, a SACK is sent and the
* : value is reset to 0. Note: This is used only
* : when no DATA chunks are received out of
* : order. When DATA chunks are out of order,
* : SACK's are not delayed (see Section 6).
*/
__u8
sack_needed
;
/* Do we need to sack the peer? */
/* These are capabilities which our peer advertised. */
/* These are capabilities which our peer advertised. */
__u8
ecn_capable
;
/* Can peer do ECN? */
__u8
ecn_capable
;
/* Can peer do ECN? */
__u8
ipv4_address
;
/* Peer understands IPv4 addresses? */
__u8
ipv4_address
;
/* Peer understands IPv4 addresses? */
__u8
ipv6_address
;
/* Peer understands IPv6 addresses? */
__u8
ipv6_address
;
/* Peer understands IPv6 addresses? */
__u8
hostname_address
;
/* Peer understands DNS addresses? */
__u8
hostname_address
;
/* Peer understands DNS addresses? */
__u8
asconf_capable
;
/* Does peer support ADDIP? */
/* Does peer support ADDIP? */
__u8
prsctp_capable
;
/* Can peer do PR-SCTP? */
__u8
asconf_capable
;
/* This mask is used to disable sending the ASCONF chunk
/* This mask is used to disable sending the ASCONF chunk
* with specified parameter to peer.
* with specified parameter to peer.
...
@@ -1489,6 +1486,9 @@ struct sctp_association {
...
@@ -1489,6 +1486,9 @@ struct sctp_association {
__u32
ctsn_ack_point
;
__u32
ctsn_ack_point
;
/* PR-SCTP Advanced.Peer.Ack.Point */
__u32
adv_peer_ack_point
;
/* Highest TSN that is acknowledged by incoming SACKs. */
/* Highest TSN that is acknowledged by incoming SACKs. */
__u32
highest_sacked
;
__u32
highest_sacked
;
...
@@ -1529,19 +1529,7 @@ struct sctp_association {
...
@@ -1529,19 +1529,7 @@ struct sctp_association {
/* The message size at which SCTP fragmentation will occur. */
/* The message size at which SCTP fragmentation will occur. */
__u32
frag_point
;
__u32
frag_point
;
/* Ack State : This flag indicates if the next received
/* Currently only one counter is used to count INIT errors. */
* : packet is to be responded to with a
* : SACK. This is initializedto 0. When a packet
* : is received it is incremented. If this value
* : reaches 2 or more, a SACK is sent and the
* : value is reset to 0. Note: This is used only
* : when no DATA chunks are received out of
* : order. When DATA chunks are out of order,
* : SACK's are not delayed (see Section 6).
*/
/* Do we need to send an ack?
* When counters[SctpCounterAckState] is above 1 we do!
*/
int
counters
[
SCTP_NUMBER_COUNTERS
];
int
counters
[
SCTP_NUMBER_COUNTERS
];
/* Default send parameters. */
/* Default send parameters. */
...
...
include/net/sctp/tsnmap.h
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 2004
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001-2003 International Business Machines, Corp.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
...
@@ -37,6 +37,7 @@
...
@@ -37,6 +37,7 @@
* Jon Grimm <jgrimm@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* La Monte H.P. Yarroll <piggy@acm.org>
* La Monte H.P. Yarroll <piggy@acm.org>
* Karl Knutson <karl@athena.chicago.il.us>
* Karl Knutson <karl@athena.chicago.il.us>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -145,6 +146,9 @@ int sctp_tsnmap_check(const struct sctp_tsnmap *, __u32 tsn);
...
@@ -145,6 +146,9 @@ int sctp_tsnmap_check(const struct sctp_tsnmap *, __u32 tsn);
/* Mark this TSN as seen. */
/* Mark this TSN as seen. */
void
sctp_tsnmap_mark
(
struct
sctp_tsnmap
*
,
__u32
tsn
);
void
sctp_tsnmap_mark
(
struct
sctp_tsnmap
*
,
__u32
tsn
);
/* Mark this TSN and all lower as seen. */
void
sctp_tsnmap_skip
(
struct
sctp_tsnmap
*
map
,
__u32
tsn
);
/* Retrieve the Cumulative TSN ACK Point. */
/* Retrieve the Cumulative TSN ACK Point. */
static
inline
__u32
sctp_tsnmap_get_ctsn
(
const
struct
sctp_tsnmap
*
map
)
static
inline
__u32
sctp_tsnmap_get_ctsn
(
const
struct
sctp_tsnmap
*
map
)
{
{
...
...
include/net/sctp/ulpqueue.h
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 2004
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001-2003 International Business Machines, Corp.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Nokia, Inc.
* Copyright (c) 2001 Nokia, Inc.
* Copyright (c) 2001 La Monte H.P. Yarroll
* Copyright (c) 2001 La Monte H.P. Yarroll
...
@@ -38,6 +38,7 @@
...
@@ -38,6 +38,7 @@
* Written or modified by:
* Written or modified by:
* Jon Grimm <jgrimm@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* La Monte H.P. Yarroll <piggy@acm.org>
* La Monte H.P. Yarroll <piggy@acm.org>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -79,6 +80,9 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *, int);
...
@@ -79,6 +80,9 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *, int);
/* Clear the partial data delivery condition on this socket. */
/* Clear the partial data delivery condition on this socket. */
int
sctp_clear_pd
(
struct
sock
*
sk
);
int
sctp_clear_pd
(
struct
sock
*
sk
);
/* Skip over an SSN. */
void
sctp_ulpq_skip
(
struct
sctp_ulpq
*
ulpq
,
__u16
sid
,
__u16
ssn
);
#endif
/* __sctp_ulpqueue_h__ */
#endif
/* __sctp_ulpqueue_h__ */
...
...
net/sctp/associola.c
View file @
9b10f4ba
...
@@ -210,6 +210,7 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
...
@@ -210,6 +210,7 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
asoc
->
next_tsn
=
asoc
->
c
.
initial_tsn
;
asoc
->
next_tsn
=
asoc
->
c
.
initial_tsn
;
asoc
->
ctsn_ack_point
=
asoc
->
next_tsn
-
1
;
asoc
->
ctsn_ack_point
=
asoc
->
next_tsn
-
1
;
asoc
->
adv_peer_ack_point
=
asoc
->
ctsn_ack_point
;
asoc
->
highest_sacked
=
asoc
->
ctsn_ack_point
;
asoc
->
highest_sacked
=
asoc
->
ctsn_ack_point
;
asoc
->
last_cwr_tsn
=
asoc
->
ctsn_ack_point
;
asoc
->
last_cwr_tsn
=
asoc
->
ctsn_ack_point
;
asoc
->
unack_data
=
0
;
asoc
->
unack_data
=
0
;
...
@@ -261,12 +262,6 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
...
@@ -261,12 +262,6 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
/* Create an output queue. */
/* Create an output queue. */
sctp_outq_init
(
asoc
,
&
asoc
->
outqueue
);
sctp_outq_init
(
asoc
,
&
asoc
->
outqueue
);
sctp_outq_set_output_handlers
(
&
asoc
->
outqueue
,
sctp_packet_init
,
sctp_packet_config
,
sctp_packet_append_chunk
,
sctp_packet_transmit_chunk
,
sctp_packet_transmit
);
if
(
!
sctp_ulpq_init
(
&
asoc
->
ulpq
,
asoc
))
if
(
!
sctp_ulpq_init
(
&
asoc
->
ulpq
,
asoc
))
goto
fail_init
;
goto
fail_init
;
...
@@ -482,10 +477,8 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
...
@@ -482,10 +477,8 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
/* The asoc->peer.port might not be meaningful yet, but
/* The asoc->peer.port might not be meaningful yet, but
* initialize the packet structure anyway.
* initialize the packet structure anyway.
*/
*/
(
asoc
->
outqueue
.
init_output
)(
&
peer
->
packet
,
sctp_packet_init
(
&
peer
->
packet
,
peer
,
asoc
->
base
.
bind_addr
.
port
,
peer
,
asoc
->
peer
.
port
);
asoc
->
base
.
bind_addr
.
port
,
asoc
->
peer
.
port
);
/* 7.2.1 Slow-Start
/* 7.2.1 Slow-Start
*
*
...
@@ -967,6 +960,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
...
@@ -967,6 +960,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
asoc
->
next_tsn
=
new
->
next_tsn
;
asoc
->
next_tsn
=
new
->
next_tsn
;
asoc
->
ctsn_ack_point
=
new
->
ctsn_ack_point
;
asoc
->
ctsn_ack_point
=
new
->
ctsn_ack_point
;
asoc
->
adv_peer_ack_point
=
new
->
adv_peer_ack_point
;
/* Reinitialize SSN for both local streams
/* Reinitialize SSN for both local streams
* and peer's streams.
* and peer's streams.
...
@@ -975,6 +969,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
...
@@ -975,6 +969,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
}
else
{
}
else
{
asoc
->
ctsn_ack_point
=
asoc
->
next_tsn
-
1
;
asoc
->
ctsn_ack_point
=
asoc
->
next_tsn
-
1
;
asoc
->
adv_peer_ack_point
=
asoc
->
ctsn_ack_point
;
if
(
!
asoc
->
ssnmap
)
{
if
(
!
asoc
->
ssnmap
)
{
/* Move the ssnmap. */
/* Move the ssnmap. */
asoc
->
ssnmap
=
new
->
ssnmap
;
asoc
->
ssnmap
=
new
->
ssnmap
;
...
...
net/sctp/chunk.c
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
*
Copyright (c) 2003 International Business Machines Corp.
*
(C) Copyright IBM Corp. 2003, 2004
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
*
*
...
@@ -31,6 +31,7 @@
...
@@ -31,6 +31,7 @@
*
*
* Written or modified by:
* Written or modified by:
* Jon Grimm <jgrimm@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -55,7 +56,8 @@ void sctp_datamsg_init(struct sctp_datamsg *msg)
...
@@ -55,7 +56,8 @@ void sctp_datamsg_init(struct sctp_datamsg *msg)
atomic_set
(
&
msg
->
refcnt
,
1
);
atomic_set
(
&
msg
->
refcnt
,
1
);
msg
->
send_failed
=
0
;
msg
->
send_failed
=
0
;
msg
->
send_error
=
0
;
msg
->
send_error
=
0
;
msg
->
can_expire
=
0
;
msg
->
can_abandon
=
0
;
msg
->
expires_at
=
0
;
INIT_LIST_HEAD
(
&
msg
->
chunks
);
INIT_LIST_HEAD
(
&
msg
->
chunks
);
}
}
...
@@ -182,34 +184,17 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
...
@@ -182,34 +184,17 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
* have the same expiration.
* have the same expiration.
*/
*/
if
(
sinfo
->
sinfo_timetolive
)
{
if
(
sinfo
->
sinfo_timetolive
)
{
struct
timeval
tv
;
__u32
ttl
=
sinfo
->
sinfo_timetolive
;
/* sinfo_timetolive is in milliseconds */
/* sinfo_timetolive is in milliseconds */
tv
.
tv_sec
=
ttl
/
1000
;
msg
->
expires_at
=
jiffies
+
tv
.
tv_usec
=
ttl
%
1000
*
1000
;
MSECS_TO_JIFFIES
(
sinfo
->
sinfo_timetolive
);
msg
->
expires_at
=
jiffies
+
timeval_to_jiffies
(
&
tv
);
msg
->
can_abandon
=
1
;
msg
->
can_expire
=
1
;
SCTP_DEBUG_PRINTK
(
"%s: msg:%p expires_at: %ld jiffies:%ld
\n
"
,
__FUNCTION__
,
msg
,
msg
->
expires_at
,
jiffies
);
}
}
/* What is a reasonable fragmentation point right now? */
max
=
asoc
->
frag_point
;
max
=
asoc
->
pmtu
;
if
(
max
<
SCTP_MIN_PMTU
)
max
=
SCTP_MIN_PMTU
;
max
-=
SCTP_IP_OVERHEAD
;
/* Make sure not beyond maximum chunk size. */
if
(
max
>
SCTP_MAX_CHUNK_LEN
)
max
=
SCTP_MAX_CHUNK_LEN
;
/* Subtract out the overhead of a data chunk header. */
max
-=
sizeof
(
struct
sctp_data_chunk
);
whole
=
0
;
whole
=
0
;
/* If user has specified smaller fragmentation, make it so. */
if
(
sctp_sk
(
asoc
->
base
.
sk
)
->
user_frag
)
max
=
min_t
(
int
,
max
,
sctp_sk
(
asoc
->
base
.
sk
)
->
user_frag
);
first_len
=
max
;
first_len
=
max
;
/* Encourage Cookie-ECHO bundling. */
/* Encourage Cookie-ECHO bundling. */
...
@@ -303,14 +288,11 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
...
@@ -303,14 +288,11 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
}
}
/* Check whether this message has expired. */
/* Check whether this message has expired. */
int
sctp_
datamsg_expires
(
struct
sctp_chunk
*
chunk
)
int
sctp_
chunk_abandoned
(
struct
sctp_chunk
*
chunk
)
{
{
struct
sctp_datamsg
*
msg
=
chunk
->
msg
;
struct
sctp_datamsg
*
msg
=
chunk
->
msg
;
/* FIXME: When PR-SCTP is supported we can make this
if
(
!
msg
->
can_abandon
)
* check more lenient.
*/
if
(
!
msg
->
can_expire
)
return
0
;
return
0
;
if
(
time_after
(
jiffies
,
msg
->
expires_at
))
if
(
time_after
(
jiffies
,
msg
->
expires_at
))
...
@@ -320,7 +302,7 @@ int sctp_datamsg_expires(struct sctp_chunk *chunk)
...
@@ -320,7 +302,7 @@ int sctp_datamsg_expires(struct sctp_chunk *chunk)
}
}
/* This chunk (and consequently entire message) has failed in its sending. */
/* This chunk (and consequently entire message) has failed in its sending. */
void
sctp_
datamsg
_fail
(
struct
sctp_chunk
*
chunk
,
int
error
)
void
sctp_
chunk
_fail
(
struct
sctp_chunk
*
chunk
,
int
error
)
{
{
chunk
->
msg
->
send_failed
=
1
;
chunk
->
msg
->
send_failed
=
1
;
chunk
->
msg
->
send_error
=
error
;
chunk
->
msg
->
send_error
=
error
;
...
...
net/sctp/debug.c
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 2004
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 International Business Machines Corp.
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
*
*
...
@@ -43,6 +43,7 @@
...
@@ -43,6 +43,7 @@
* Xingang Guo <xingang.guo@intel.com>
* Xingang Guo <xingang.guo@intel.com>
* Jon Grimm <jgrimm@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* Daisy Chang <daisyc@us.ibm.com>
* Daisy Chang <daisyc@us.ibm.com>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -88,6 +89,9 @@ const char *sctp_cname(const sctp_subtype_t cid)
...
@@ -88,6 +89,9 @@ const char *sctp_cname(const sctp_subtype_t cid)
case
SCTP_CID_ASCONF_ACK
:
case
SCTP_CID_ASCONF_ACK
:
return
"ASCONF_ACK"
;
return
"ASCONF_ACK"
;
case
SCTP_CID_FWD_TSN
:
return
"FWD_TSN"
;
default:
default:
return
"unknown chunk"
;
return
"unknown chunk"
;
};
};
...
...
net/sctp/output.c
View file @
9b10f4ba
...
@@ -62,29 +62,35 @@
...
@@ -62,29 +62,35 @@
#include <net/sctp/sm.h>
#include <net/sctp/sm.h>
/* Forward declarations for private helpers. */
/* Forward declarations for private helpers. */
static
void
sctp_packet_reset
(
struct
sctp_packet
*
packet
);
static
sctp_xmit_t
sctp_packet_append_data
(
struct
sctp_packet
*
packet
,
static
sctp_xmit_t
sctp_packet_append_data
(
struct
sctp_packet
*
packet
,
struct
sctp_chunk
*
chunk
);
struct
sctp_chunk
*
chunk
);
/* Config a packet.
/* Config a packet.
* This appears to be a followup set of initializations.
)
* This appears to be a followup set of initializations.
*/
*/
struct
sctp_packet
*
sctp_packet_config
(
struct
sctp_packet
*
packet
,
struct
sctp_packet
*
sctp_packet_config
(
struct
sctp_packet
*
packet
,
__u32
vtag
,
int
ecn_capable
,
__u32
vtag
,
int
ecn_capable
)
sctp_packet_phandler_t
*
prepend_handler
)
{
{
int
packet_empty
=
(
packet
->
size
==
SCTP_IP_OVERHEAD
);
struct
sctp_chunk
*
chunk
=
NULL
;
SCTP_DEBUG_PRINTK
(
"%s: packet:%p vtag:0x%x
\n
"
,
__FUNCTION__
,
packet
,
vtag
);
packet
->
vtag
=
vtag
;
packet
->
vtag
=
vtag
;
packet
->
ecn_capable
=
ecn_capable
;
packet
->
get_prepend_chunk
=
prepend_handler
;
packet
->
has_cookie_echo
=
0
;
packet
->
has_cookie_echo
=
0
;
packet
->
has_sack
=
0
;
packet
->
has_sack
=
0
;
packet
->
ipfragok
=
0
;
packet
->
ipfragok
=
0
;
/* We might need to call the prepend_handler right away. */
if
(
ecn_capable
&&
sctp_packet_empty
(
packet
))
{
if
(
packet_empty
)
chunk
=
sctp_get_ecne_prepend
(
packet
->
transport
->
asoc
);
sctp_packet_reset
(
packet
);
/* If there a is a prepend chunk stick it on the list before
* any other chunks get appended.
*/
if
(
chunk
)
sctp_packet_append_chunk
(
packet
,
chunk
);
}
return
packet
;
return
packet
;
}
}
...
@@ -93,19 +99,30 @@ struct sctp_packet *sctp_packet_init(struct sctp_packet *packet,
...
@@ -93,19 +99,30 @@ struct sctp_packet *sctp_packet_init(struct sctp_packet *packet,
struct
sctp_transport
*
transport
,
struct
sctp_transport
*
transport
,
__u16
sport
,
__u16
dport
)
__u16
sport
,
__u16
dport
)
{
{
struct
sctp_association
*
asoc
=
transport
->
asoc
;
size_t
overhead
;
SCTP_DEBUG_PRINTK
(
"%s: packet:%p transport:%p
\n
"
,
__FUNCTION__
,
packet
,
transport
);
packet
->
transport
=
transport
;
packet
->
transport
=
transport
;
packet
->
source_port
=
sport
;
packet
->
source_port
=
sport
;
packet
->
destination_port
=
dport
;
packet
->
destination_port
=
dport
;
skb_queue_head_init
(
&
packet
->
chunks
);
skb_queue_head_init
(
&
packet
->
chunks
);
packet
->
size
=
SCTP_IP_OVERHEAD
;
if
(
asoc
)
{
struct
sctp_opt
*
sp
=
sctp_sk
(
asoc
->
base
.
sk
);
overhead
=
sp
->
pf
->
af
->
net_header_len
;
}
else
{
overhead
=
sizeof
(
struct
ipv6hdr
);
}
overhead
+=
sizeof
(
struct
sctphdr
);
packet
->
overhead
=
overhead
;
packet
->
size
=
overhead
;
packet
->
vtag
=
0
;
packet
->
vtag
=
0
;
packet
->
ecn_capable
=
0
;
packet
->
get_prepend_chunk
=
NULL
;
packet
->
has_cookie_echo
=
0
;
packet
->
has_cookie_echo
=
0
;
packet
->
has_sack
=
0
;
packet
->
has_sack
=
0
;
packet
->
ipfragok
=
0
;
packet
->
ipfragok
=
0
;
packet
->
malloced
=
0
;
packet
->
malloced
=
0
;
sctp_packet_reset
(
packet
);
return
packet
;
return
packet
;
}
}
...
@@ -114,6 +131,8 @@ void sctp_packet_free(struct sctp_packet *packet)
...
@@ -114,6 +131,8 @@ void sctp_packet_free(struct sctp_packet *packet)
{
{
struct
sctp_chunk
*
chunk
;
struct
sctp_chunk
*
chunk
;
SCTP_DEBUG_PRINTK
(
"%s: packet:%p
\n
"
,
__FUNCTION__
,
packet
);
while
((
chunk
=
(
struct
sctp_chunk
*
)
__skb_dequeue
(
&
packet
->
chunks
)))
while
((
chunk
=
(
struct
sctp_chunk
*
)
__skb_dequeue
(
&
packet
->
chunks
)))
sctp_chunk_free
(
chunk
);
sctp_chunk_free
(
chunk
);
...
@@ -134,6 +153,9 @@ sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
...
@@ -134,6 +153,9 @@ sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
sctp_xmit_t
retval
;
sctp_xmit_t
retval
;
int
error
=
0
;
int
error
=
0
;
SCTP_DEBUG_PRINTK
(
"%s: packet:%p chunk:%p
\n
"
,
__FUNCTION__
,
packet
,
chunk
);
switch
((
retval
=
(
sctp_packet_append_chunk
(
packet
,
chunk
))))
{
switch
((
retval
=
(
sctp_packet_append_chunk
(
packet
,
chunk
))))
{
case
SCTP_XMIT_PMTU_FULL
:
case
SCTP_XMIT_PMTU_FULL
:
if
(
!
packet
->
has_cookie_echo
)
{
if
(
!
packet
->
has_cookie_echo
)
{
...
@@ -148,7 +170,6 @@ sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
...
@@ -148,7 +170,6 @@ sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
}
}
break
;
break
;
case
SCTP_XMIT_MUST_FRAG
:
case
SCTP_XMIT_RWND_FULL
:
case
SCTP_XMIT_RWND_FULL
:
case
SCTP_XMIT_OK
:
case
SCTP_XMIT_OK
:
case
SCTP_XMIT_NAGLE_DELAY
:
case
SCTP_XMIT_NAGLE_DELAY
:
...
@@ -201,6 +222,9 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
...
@@ -201,6 +222,9 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
size_t
pmtu
;
size_t
pmtu
;
int
too_big
;
int
too_big
;
SCTP_DEBUG_PRINTK
(
"%s: packet:%p chunk:%p
\n
"
,
__FUNCTION__
,
packet
,
chunk
);
retval
=
sctp_packet_bundle_sack
(
packet
,
chunk
);
retval
=
sctp_packet_bundle_sack
(
packet
,
chunk
);
psize
=
packet
->
size
;
psize
=
packet
->
size
;
...
@@ -215,17 +239,14 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
...
@@ -215,17 +239,14 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
/* Decide if we need to fragment or resubmit later. */
/* Decide if we need to fragment or resubmit later. */
if
(
too_big
)
{
if
(
too_big
)
{
int
packet_empty
=
(
packet
->
size
==
SCTP_IP_OVERHEAD
);
/* Both control chunks and data chunks with TSNs are
/* Both control chunks and data chunks with TSNs are
* non-fragmentable.
* non-fragmentable.
*/
*/
if
(
packet_empty
||
!
sctp_chunk_is_data
(
chunk
))
{
if
(
sctp_packet_empty
(
packet
)
||
!
sctp_chunk_is_data
(
chunk
))
{
/* We no longer do re-fragmentation.
/* We no longer do re-fragmentation.
* Just fragment at the IP layer, if we
* Just fragment at the IP layer, if we
* actually hit this condition
* actually hit this condition
*/
*/
packet
->
ipfragok
=
1
;
packet
->
ipfragok
=
1
;
goto
append
;
goto
append
;
...
@@ -233,9 +254,6 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
...
@@ -233,9 +254,6 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
retval
=
SCTP_XMIT_PMTU_FULL
;
retval
=
SCTP_XMIT_PMTU_FULL
;
goto
finish
;
goto
finish
;
}
}
}
else
{
/* The chunk fits in the packet. */
goto
append
;
}
}
append:
append:
...
@@ -260,6 +278,7 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
...
@@ -260,6 +278,7 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
/* It is OK to send this chunk. */
/* It is OK to send this chunk. */
__skb_queue_tail
(
&
packet
->
chunks
,
(
struct
sk_buff
*
)
chunk
);
__skb_queue_tail
(
&
packet
->
chunks
,
(
struct
sk_buff
*
)
chunk
);
packet
->
size
+=
chunk_len
;
packet
->
size
+=
chunk_len
;
chunk
->
transport
=
packet
->
transport
;
finish:
finish:
return
retval
;
return
retval
;
}
}
...
@@ -283,6 +302,8 @@ int sctp_packet_transmit(struct sctp_packet *packet)
...
@@ -283,6 +302,8 @@ int sctp_packet_transmit(struct sctp_packet *packet)
__u8
has_data
=
0
;
__u8
has_data
=
0
;
struct
dst_entry
*
dst
;
struct
dst_entry
*
dst
;
SCTP_DEBUG_PRINTK
(
"%s: packet:%p
\n
"
,
__FUNCTION__
,
packet
);
/* Do NOT generate a chunkless packet. */
/* Do NOT generate a chunkless packet. */
chunk
=
(
struct
sctp_chunk
*
)
skb_peek
(
&
packet
->
chunks
);
chunk
=
(
struct
sctp_chunk
*
)
skb_peek
(
&
packet
->
chunks
);
if
(
unlikely
(
!
chunk
))
if
(
unlikely
(
!
chunk
))
...
@@ -297,7 +318,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
...
@@ -297,7 +318,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
goto
nomem
;
goto
nomem
;
/* Make sure the outbound skb has enough header room reserved. */
/* Make sure the outbound skb has enough header room reserved. */
skb_reserve
(
nskb
,
SCTP_IP_OVERHEAD
);
skb_reserve
(
nskb
,
packet
->
overhead
);
/* Set the owning socket so that we know where to get the
/* Set the owning socket so that we know where to get the
* destination IP address.
* destination IP address.
...
@@ -471,7 +492,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
...
@@ -471,7 +492,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
(
*
tp
->
af_specific
->
sctp_xmit
)(
nskb
,
tp
,
packet
->
ipfragok
);
(
*
tp
->
af_specific
->
sctp_xmit
)(
nskb
,
tp
,
packet
->
ipfragok
);
out:
out:
packet
->
size
=
SCTP_IP_OVERHEAD
;
packet
->
size
=
packet
->
overhead
;
return
err
;
return
err
;
no_route:
no_route:
kfree_skb
(
nskb
);
kfree_skb
(
nskb
);
...
@@ -497,7 +518,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
...
@@ -497,7 +518,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
goto
out
;
goto
out
;
nomem:
nomem:
err
=
-
ENOMEM
;
err
=
-
ENOMEM
;
printk
(
"%s alloc_skb failed.
\n
"
,
__FUNCTION__
);
goto
err
;
goto
err
;
}
}
...
@@ -505,25 +525,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
...
@@ -505,25 +525,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
* 2nd Level Abstractions
* 2nd Level Abstractions
********************************************************************/
********************************************************************/
/*
* This private function resets the packet to a fresh state.
*/
static
void
sctp_packet_reset
(
struct
sctp_packet
*
packet
)
{
struct
sctp_chunk
*
chunk
=
NULL
;
packet
->
size
=
SCTP_IP_OVERHEAD
;
if
(
packet
->
get_prepend_chunk
)
chunk
=
packet
->
get_prepend_chunk
(
packet
->
transport
->
asoc
);
/* If there a is a prepend chunk stick it on the list before
* any other chunks get appended.
*/
if
(
chunk
)
sctp_packet_append_chunk
(
packet
,
chunk
);
}
/* This private function handles the specifics of appending DATA chunks. */
/* This private function handles the specifics of appending DATA chunks. */
static
sctp_xmit_t
sctp_packet_append_data
(
struct
sctp_packet
*
packet
,
static
sctp_xmit_t
sctp_packet_append_data
(
struct
sctp_packet
*
packet
,
struct
sctp_chunk
*
chunk
)
struct
sctp_chunk
*
chunk
)
...
@@ -609,7 +610,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
...
@@ -609,7 +610,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
* if any previously transmitted data on the connection remains
* if any previously transmitted data on the connection remains
* unacknowledged.
* unacknowledged.
*/
*/
if
(
!
sp
->
nodelay
&&
SCTP_IP_OVERHEAD
==
packet
->
size
&&
if
(
!
sp
->
nodelay
&&
sctp_packet_empty
(
packet
)
&&
q
->
outstanding_bytes
&&
sctp_state
(
asoc
,
ESTABLISHED
))
{
q
->
outstanding_bytes
&&
sctp_state
(
asoc
,
ESTABLISHED
))
{
unsigned
len
=
datasize
+
q
->
out_qlen
;
unsigned
len
=
datasize
+
q
->
out_qlen
;
...
@@ -617,7 +618,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
...
@@ -617,7 +618,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
* data will fit or delay in hopes of bundling a full
* data will fit or delay in hopes of bundling a full
* sized packet.
* sized packet.
*/
*/
if
(
len
<
asoc
->
pmtu
-
SCTP_IP_OVERHEAD
)
{
if
(
len
<
asoc
->
pmtu
-
packet
->
overhead
)
{
retval
=
SCTP_XMIT_NAGLE_DELAY
;
retval
=
SCTP_XMIT_NAGLE_DELAY
;
goto
finish
;
goto
finish
;
}
}
...
@@ -637,7 +638,8 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
...
@@ -637,7 +638,8 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
asoc
->
peer
.
rwnd
=
rwnd
;
asoc
->
peer
.
rwnd
=
rwnd
;
/* Has been accepted for transmission. */
/* Has been accepted for transmission. */
chunk
->
msg
->
can_expire
=
0
;
if
(
!
asoc
->
peer
.
prsctp_capable
)
chunk
->
msg
->
can_abandon
=
0
;
finish:
finish:
return
retval
;
return
retval
;
...
...
net/sctp/outqueue.c
View file @
9b10f4ba
This diff is collapsed.
Click to expand it.
net/sctp/protocol.c
View file @
9b10f4ba
...
@@ -1004,7 +1004,9 @@ __init int sctp_init(void)
...
@@ -1004,7 +1004,9 @@ __init int sctp_init(void)
goto
err_init_mibs
;
goto
err_init_mibs
;
/* Initialize proc fs directory. */
/* Initialize proc fs directory. */
sctp_proc_init
();
status
=
sctp_proc_init
();
if
(
status
)
goto
err_init_proc
;
/* Initialize object count debugging. */
/* Initialize object count debugging. */
sctp_dbg_objcnt_init
();
sctp_dbg_objcnt_init
();
...
@@ -1127,6 +1129,9 @@ __init int sctp_init(void)
...
@@ -1127,6 +1129,9 @@ __init int sctp_init(void)
/* Disable ADDIP by default. */
/* Disable ADDIP by default. */
sctp_addip_enable
=
0
;
sctp_addip_enable
=
0
;
/* Enable PR-SCTP by default. */
sctp_prsctp_enable
=
1
;
sctp_sysctl_register
();
sctp_sysctl_register
();
INIT_LIST_HEAD
(
&
sctp_address_families
);
INIT_LIST_HEAD
(
&
sctp_address_families
);
...
@@ -1171,6 +1176,7 @@ __init int sctp_init(void)
...
@@ -1171,6 +1176,7 @@ __init int sctp_init(void)
sizeof
(
struct
sctp_hashbucket
)));
sizeof
(
struct
sctp_hashbucket
)));
err_ahash_alloc:
err_ahash_alloc:
sctp_dbg_objcnt_exit
();
sctp_dbg_objcnt_exit
();
err_init_proc:
sctp_proc_exit
();
sctp_proc_exit
();
cleanup_sctp_mibs
();
cleanup_sctp_mibs
();
err_init_mibs:
err_init_mibs:
...
...
net/sctp/sm_make_chunk.c
View file @
9b10f4ba
...
@@ -6,10 +6,6 @@
...
@@ -6,10 +6,6 @@
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
*
*
* This file includes part of the implementation of the add-IP extension,
* based on <draft-ietf-tsvwg-addip-sctp-02.txt> June 29, 2001,
* for the SCTP kernel reference Implementation.
*
* These functions work with the state functions in sctp_sm_statefuns.c
* These functions work with the state functions in sctp_sm_statefuns.c
* to implement the state operations. These functions implement the
* to implement the state operations. These functions implement the
* steps which require modifying existing data structures.
* steps which require modifying existing data structures.
...
@@ -89,11 +85,13 @@ int sctp_chunk_iif(const struct sctp_chunk *chunk)
...
@@ -89,11 +85,13 @@ int sctp_chunk_iif(const struct sctp_chunk *chunk)
* Note 2: The ECN capable field is reserved for future use of
* Note 2: The ECN capable field is reserved for future use of
* Explicit Congestion Notification.
* Explicit Congestion Notification.
*/
*/
static
const
sctp_ecn_capable_param_t
ecap_param
=
{
static
const
struct
sctp_paramhdr
ecap_param
=
{
{
SCTP_PARAM_ECN_CAPABLE
,
SCTP_PARAM_ECN_CAPABLE
,
__constant_htons
(
sizeof
(
struct
sctp_paramhdr
)),
__constant_htons
(
sizeof
(
sctp_ecn_capable_param_t
)),
};
}
static
const
struct
sctp_paramhdr
prsctp_param
=
{
SCTP_PARAM_FWD_TSN_SUPPORT
,
__constant_htons
(
sizeof
(
struct
sctp_paramhdr
)),
};
};
/* A helper to initialize to initialize an op error inside a
/* A helper to initialize to initialize an op error inside a
...
@@ -196,6 +194,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
...
@@ -196,6 +194,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
chunksize
=
sizeof
(
init
)
+
addrs_len
+
SCTP_SAT_LEN
(
num_types
);
chunksize
=
sizeof
(
init
)
+
addrs_len
+
SCTP_SAT_LEN
(
num_types
);
chunksize
+=
sizeof
(
ecap_param
);
chunksize
+=
sizeof
(
ecap_param
);
if
(
sctp_prsctp_enable
)
chunksize
+=
sizeof
(
prsctp_param
);
chunksize
+=
vparam_len
;
chunksize
+=
vparam_len
;
/* RFC 2960 3.3.2 Initiation (INIT) (1)
/* RFC 2960 3.3.2 Initiation (INIT) (1)
...
@@ -232,6 +232,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
...
@@ -232,6 +232,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
sctp_addto_chunk
(
retval
,
num_types
*
sizeof
(
__u16
),
&
types
);
sctp_addto_chunk
(
retval
,
num_types
*
sizeof
(
__u16
),
&
types
);
sctp_addto_chunk
(
retval
,
sizeof
(
ecap_param
),
&
ecap_param
);
sctp_addto_chunk
(
retval
,
sizeof
(
ecap_param
),
&
ecap_param
);
if
(
sctp_prsctp_enable
)
sctp_addto_chunk
(
retval
,
sizeof
(
prsctp_param
),
&
prsctp_param
);
nodata:
nodata:
if
(
addrs
.
v
)
if
(
addrs
.
v
)
kfree
(
addrs
.
v
);
kfree
(
addrs
.
v
);
...
@@ -278,6 +280,10 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
...
@@ -278,6 +280,10 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
if
(
asoc
->
peer
.
ecn_capable
)
if
(
asoc
->
peer
.
ecn_capable
)
chunksize
+=
sizeof
(
ecap_param
);
chunksize
+=
sizeof
(
ecap_param
);
/* Tell peer that we'll do PR-SCTP only if peer advertised. */
if
(
asoc
->
peer
.
prsctp_capable
)
chunksize
+=
sizeof
(
prsctp_param
);
/* Now allocate and fill out the chunk. */
/* Now allocate and fill out the chunk. */
retval
=
sctp_make_chunk
(
asoc
,
SCTP_CID_INIT_ACK
,
0
,
chunksize
);
retval
=
sctp_make_chunk
(
asoc
,
SCTP_CID_INIT_ACK
,
0
,
chunksize
);
if
(
!
retval
)
if
(
!
retval
)
...
@@ -293,6 +299,8 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
...
@@ -293,6 +299,8 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
sctp_addto_chunk
(
retval
,
cookie_len
,
cookie
);
sctp_addto_chunk
(
retval
,
cookie_len
,
cookie
);
if
(
asoc
->
peer
.
ecn_capable
)
if
(
asoc
->
peer
.
ecn_capable
)
sctp_addto_chunk
(
retval
,
sizeof
(
ecap_param
),
&
ecap_param
);
sctp_addto_chunk
(
retval
,
sizeof
(
ecap_param
),
&
ecap_param
);
if
(
asoc
->
peer
.
prsctp_capable
)
sctp_addto_chunk
(
retval
,
sizeof
(
prsctp_param
),
&
prsctp_param
);
/* We need to remove the const qualifier at this point. */
/* We need to remove the const qualifier at this point. */
retval
->
asoc
=
(
struct
sctp_association
*
)
asoc
;
retval
->
asoc
=
(
struct
sctp_association
*
)
asoc
;
...
@@ -1286,6 +1294,9 @@ sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
...
@@ -1286,6 +1294,9 @@ sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
/* Save the raw address list length in the cookie. */
/* Save the raw address list length in the cookie. */
cookie
->
c
.
raw_addr_list_len
=
addrs_len
;
cookie
->
c
.
raw_addr_list_len
=
addrs_len
;
/* Remember PR-SCTP capability. */
cookie
->
c
.
prsctp_capable
=
asoc
->
peer
.
prsctp_capable
;
/* Set an expiration time for the cookie. */
/* Set an expiration time for the cookie. */
do_gettimeofday
(
&
cookie
->
c
.
expiration
);
do_gettimeofday
(
&
cookie
->
c
.
expiration
);
TIMEVAL_ADD
(
asoc
->
cookie_life
,
cookie
->
c
.
expiration
);
TIMEVAL_ADD
(
asoc
->
cookie_life
,
cookie
->
c
.
expiration
);
...
@@ -1442,6 +1453,8 @@ struct sctp_association *sctp_unpack_cookie(
...
@@ -1442,6 +1453,8 @@ struct sctp_association *sctp_unpack_cookie(
retval
->
next_tsn
=
retval
->
c
.
initial_tsn
;
retval
->
next_tsn
=
retval
->
c
.
initial_tsn
;
retval
->
ctsn_ack_point
=
retval
->
next_tsn
-
1
;
retval
->
ctsn_ack_point
=
retval
->
next_tsn
-
1
;
retval
->
addip_serial
=
retval
->
c
.
initial_tsn
;
retval
->
addip_serial
=
retval
->
c
.
initial_tsn
;
retval
->
adv_peer_ack_point
=
retval
->
ctsn_ack_point
;
retval
->
peer
.
prsctp_capable
=
retval
->
c
.
prsctp_capable
;
/* The INIT stuff will be done by the side effects. */
/* The INIT stuff will be done by the side effects. */
return
retval
;
return
retval
;
...
@@ -1653,6 +1666,10 @@ static int sctp_verify_param(const struct sctp_association *asoc,
...
@@ -1653,6 +1666,10 @@ static int sctp_verify_param(const struct sctp_association *asoc,
case
SCTP_PARAM_HOST_NAME_ADDRESS
:
case
SCTP_PARAM_HOST_NAME_ADDRESS
:
/* Tell the peer, we won't support this param. */
/* Tell the peer, we won't support this param. */
return
sctp_process_hn_param
(
asoc
,
param
,
chunk
,
err_chunk
);
return
sctp_process_hn_param
(
asoc
,
param
,
chunk
,
err_chunk
);
case
SCTP_PARAM_FWD_TSN_SUPPORT
:
if
(
sctp_prsctp_enable
)
break
;
/* Fall Through */
default:
default:
SCTP_DEBUG_PRINTK
(
"Unrecognized param: %d for chunk %d.
\n
"
,
SCTP_DEBUG_PRINTK
(
"Unrecognized param: %d for chunk %d.
\n
"
,
ntohs
(
param
.
p
->
type
),
cid
);
ntohs
(
param
.
p
->
type
),
cid
);
...
@@ -1968,6 +1985,12 @@ int sctp_process_param(struct sctp_association *asoc, union sctp_params param,
...
@@ -1968,6 +1985,12 @@ int sctp_process_param(struct sctp_association *asoc, union sctp_params param,
asoc
->
peer
.
ecn_capable
=
1
;
asoc
->
peer
.
ecn_capable
=
1
;
break
;
break
;
case
SCTP_PARAM_FWD_TSN_SUPPORT
:
if
(
sctp_prsctp_enable
)
{
asoc
->
peer
.
prsctp_capable
=
1
;
break
;
}
/* Fall Through */
default:
default:
/* Any unrecognized parameters should have been caught
/* Any unrecognized parameters should have been caught
* and handled by sctp_verify_param() which should be
* and handled by sctp_verify_param() which should be
...
@@ -2622,3 +2645,38 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
...
@@ -2622,3 +2645,38 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
return
retval
;
return
retval
;
}
}
/* Make a FWD TSN chunk. */
struct
sctp_chunk
*
sctp_make_fwdtsn
(
const
struct
sctp_association
*
asoc
,
__u32
new_cum_tsn
,
size_t
nstreams
,
struct
sctp_fwdtsn_skip
*
skiplist
)
{
struct
sctp_chunk
*
retval
=
NULL
;
struct
sctp_fwdtsn_chunk
*
ftsn_chunk
;
struct
sctp_fwdtsn_hdr
ftsn_hdr
;
struct
sctp_fwdtsn_skip
skip
;
size_t
hint
;
int
i
;
hint
=
(
nstreams
+
1
)
*
sizeof
(
__u32
);
/* Maybe set the T-bit if we have no association. */
retval
=
sctp_make_chunk
(
asoc
,
SCTP_CID_FWD_TSN
,
0
,
hint
);
if
(
!
retval
)
return
NULL
;
ftsn_chunk
=
(
struct
sctp_fwdtsn_chunk
*
)
retval
->
subh
.
fwdtsn_hdr
;
ftsn_hdr
.
new_cum_tsn
=
htonl
(
new_cum_tsn
);
retval
->
subh
.
fwdtsn_hdr
=
sctp_addto_chunk
(
retval
,
sizeof
(
ftsn_hdr
),
&
ftsn_hdr
);
for
(
i
=
0
;
i
<
nstreams
;
i
++
)
{
skip
.
stream
=
skiplist
[
i
].
stream
;
skip
.
ssn
=
skiplist
[
i
].
ssn
;
sctp_addto_chunk
(
retval
,
sizeof
(
skip
),
&
skip
);
}
return
retval
;
}
net/sctp/sm_sideeffect.c
View file @
9b10f4ba
...
@@ -579,7 +579,7 @@ static void sctp_cmd_transport_reset(sctp_cmd_seq_t *cmds,
...
@@ -579,7 +579,7 @@ static void sctp_cmd_transport_reset(sctp_cmd_seq_t *cmds,
/* Helper function to process the process SACK command. */
/* Helper function to process the process SACK command. */
static
int
sctp_cmd_process_sack
(
sctp_cmd_seq_t
*
cmds
,
static
int
sctp_cmd_process_sack
(
sctp_cmd_seq_t
*
cmds
,
struct
sctp_association
*
asoc
,
struct
sctp_association
*
asoc
,
s
ctp_sackhdr_t
*
sackh
)
s
truct
sctp_sackhdr
*
sackh
)
{
{
int
err
;
int
err
;
...
@@ -729,6 +729,19 @@ static void sctp_cmd_process_operr(sctp_cmd_seq_t *cmds,
...
@@ -729,6 +729,19 @@ static void sctp_cmd_process_operr(sctp_cmd_seq_t *cmds,
}
}
}
}
/* Process variable FWDTSN chunk information. */
static
void
sctp_cmd_process_fwdtsn
(
struct
sctp_ulpq
*
ulpq
,
struct
sctp_chunk
*
chunk
)
{
struct
sctp_fwdtsn_skip
*
skip
;
/* Walk through all the skipped SSNs */
sctp_walk_fwdtsn
(
skip
,
chunk
)
{
sctp_ulpq_skip
(
ulpq
,
ntohs
(
skip
->
stream
),
ntohs
(
skip
->
ssn
));
}
return
;
}
/* These three macros allow us to pull the debugging code out of the
/* These three macros allow us to pull the debugging code out of the
* main flow of sctp_do_sm() to keep attention focused on the real
* main flow of sctp_do_sm() to keep attention focused on the real
* functionality there.
* functionality there.
...
@@ -903,7 +916,7 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
...
@@ -903,7 +916,7 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
struct
timer_list
*
timer
;
struct
timer_list
*
timer
;
unsigned
long
timeout
;
unsigned
long
timeout
;
struct
sctp_transport
*
t
;
struct
sctp_transport
*
t
;
s
ctp_sackhdr_t
sackh
;
s
truct
sctp_sackhdr
sackh
;
int
local_cork
=
0
;
int
local_cork
=
0
;
if
(
SCTP_EVENT_T_TIMEOUT
!=
event_type
)
if
(
SCTP_EVENT_T_TIMEOUT
!=
event_type
)
...
@@ -962,6 +975,18 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
...
@@ -962,6 +975,18 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_tsnmap_mark
(
&
asoc
->
peer
.
tsn_map
,
cmd
->
obj
.
u32
);
sctp_tsnmap_mark
(
&
asoc
->
peer
.
tsn_map
,
cmd
->
obj
.
u32
);
break
;
break
;
case
SCTP_CMD_REPORT_FWDTSN
:
/* Move the Cumulattive TSN Ack ahead. */
sctp_tsnmap_skip
(
&
asoc
->
peer
.
tsn_map
,
cmd
->
obj
.
u32
);
/* Abort any in progress partial delivery. */
sctp_ulpq_abort_pd
(
&
asoc
->
ulpq
,
GFP_ATOMIC
);
break
;
case
SCTP_CMD_PROCESS_FWDTSN
:
sctp_cmd_process_fwdtsn
(
&
asoc
->
ulpq
,
cmd
->
obj
.
ptr
);
break
;
case
SCTP_CMD_GEN_SACK
:
case
SCTP_CMD_GEN_SACK
:
/* Generate a Selective ACK.
/* Generate a Selective ACK.
* The argument tells us whether to just count
* The argument tells us whether to just count
...
...
net/sctp/sm_statefuns.c
View file @
9b10f4ba
...
@@ -3204,6 +3204,143 @@ sctp_disposition_t sctp_sf_do_asconf_ack(const struct sctp_endpoint *ep,
...
@@ -3204,6 +3204,143 @@ sctp_disposition_t sctp_sf_do_asconf_ack(const struct sctp_endpoint *ep,
return
SCTP_DISPOSITION_DISCARD
;
return
SCTP_DISPOSITION_DISCARD
;
}
}
/*
* PR-SCTP Section 3.6 Receiver Side Implementation of PR-SCTP
*
* When a FORWARD TSN chunk arrives, the data receiver MUST first update
* its cumulative TSN point to the value carried in the FORWARD TSN
* chunk, and then MUST further advance its cumulative TSN point locally
* if possible.
* After the above processing, the data receiver MUST stop reporting any
* missing TSNs earlier than or equal to the new cumulative TSN point.
*
* Verification Tag: 8.5 Verification Tag [Normal verification]
*
* The return value is the disposition of the chunk.
*/
sctp_disposition_t
sctp_sf_eat_fwd_tsn
(
const
struct
sctp_endpoint
*
ep
,
const
struct
sctp_association
*
asoc
,
const
sctp_subtype_t
type
,
void
*
arg
,
sctp_cmd_seq_t
*
commands
)
{
struct
sctp_chunk
*
chunk
=
arg
;
struct
sctp_fwdtsn_hdr
*
fwdtsn_hdr
;
__u16
len
;
__u32
tsn
;
/* RFC 2960 8.5 Verification Tag
*
* When receiving an SCTP packet, the endpoint MUST ensure
* that the value in the Verification Tag field of the
* received SCTP packet matches its own Tag.
*/
if
(
ntohl
(
chunk
->
sctp_hdr
->
vtag
)
!=
asoc
->
c
.
my_vtag
)
{
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_REPORT_BAD_TAG
,
SCTP_NULL
());
return
sctp_sf_pdiscard
(
ep
,
asoc
,
type
,
arg
,
commands
);
}
fwdtsn_hdr
=
(
struct
sctp_fwdtsn_hdr
*
)
chunk
->
skb
->
data
;
chunk
->
subh
.
fwdtsn_hdr
=
fwdtsn_hdr
;
len
=
ntohs
(
chunk
->
chunk_hdr
->
length
);
len
-=
sizeof
(
struct
sctp_chunkhdr
);
skb_pull
(
chunk
->
skb
,
len
);
tsn
=
ntohl
(
fwdtsn_hdr
->
new_cum_tsn
);
SCTP_DEBUG_PRINTK
(
"%s: TSN 0x%x.
\n
"
,
__FUNCTION__
,
tsn
);
/* The TSN is too high--silently discard the chunk and count on it
* getting retransmitted later.
*/
if
(
sctp_tsnmap_check
(
&
asoc
->
peer
.
tsn_map
,
tsn
)
<
0
)
goto
discard_noforce
;
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_REPORT_FWDTSN
,
SCTP_U32
(
tsn
));
if
(
len
>
sizeof
(
struct
sctp_fwdtsn_hdr
))
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_PROCESS_FWDTSN
,
SCTP_CHUNK
(
chunk
));
/* Count this as receiving DATA. */
if
(
asoc
->
autoclose
)
{
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_TIMER_RESTART
,
SCTP_TO
(
SCTP_EVENT_TIMEOUT_AUTOCLOSE
));
}
/* FIXME: For now send a SACK, but DATA processing may
* send another.
*/
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_GEN_SACK
,
SCTP_NOFORCE
());
/* Start the SACK timer. */
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_TIMER_RESTART
,
SCTP_TO
(
SCTP_EVENT_TIMEOUT_SACK
));
return
SCTP_DISPOSITION_CONSUME
;
discard_noforce:
return
SCTP_DISPOSITION_DISCARD
;
}
sctp_disposition_t
sctp_sf_eat_fwd_tsn_fast
(
const
struct
sctp_endpoint
*
ep
,
const
struct
sctp_association
*
asoc
,
const
sctp_subtype_t
type
,
void
*
arg
,
sctp_cmd_seq_t
*
commands
)
{
struct
sctp_chunk
*
chunk
=
arg
;
struct
sctp_fwdtsn_hdr
*
fwdtsn_hdr
;
__u16
len
;
__u32
tsn
;
/* RFC 2960 8.5 Verification Tag
*
* When receiving an SCTP packet, the endpoint MUST ensure
* that the value in the Verification Tag field of the
* received SCTP packet matches its own Tag.
*/
if
(
ntohl
(
chunk
->
sctp_hdr
->
vtag
)
!=
asoc
->
c
.
my_vtag
)
{
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_REPORT_BAD_TAG
,
SCTP_NULL
());
return
sctp_sf_pdiscard
(
ep
,
asoc
,
type
,
arg
,
commands
);
}
fwdtsn_hdr
=
(
struct
sctp_fwdtsn_hdr
*
)
chunk
->
skb
->
data
;
chunk
->
subh
.
fwdtsn_hdr
=
fwdtsn_hdr
;
len
=
ntohs
(
chunk
->
chunk_hdr
->
length
);
len
-=
sizeof
(
struct
sctp_chunkhdr
);
skb_pull
(
chunk
->
skb
,
len
);
tsn
=
ntohl
(
fwdtsn_hdr
->
new_cum_tsn
);
SCTP_DEBUG_PRINTK
(
"%s: TSN 0x%x.
\n
"
,
__FUNCTION__
,
tsn
);
/* The TSN is too high--silently discard the chunk and count on it
* getting retransmitted later.
*/
if
(
sctp_tsnmap_check
(
&
asoc
->
peer
.
tsn_map
,
tsn
)
<
0
)
goto
gen_shutdown
;
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_REPORT_FWDTSN
,
SCTP_U32
(
tsn
));
if
(
len
>
sizeof
(
struct
sctp_fwdtsn_hdr
))
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_PROCESS_FWDTSN
,
SCTP_CHUNK
(
chunk
));
/* Go a head and force a SACK, since we are shutting down. */
gen_shutdown:
/* Implementor's Guide.
*
* While in SHUTDOWN-SENT state, the SHUTDOWN sender MUST immediately
* respond to each received packet containing one or more DATA chunk(s)
* with a SACK, a SHUTDOWN chunk, and restart the T2-shutdown timer
*/
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_GEN_SHUTDOWN
,
SCTP_NULL
());
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_GEN_SACK
,
SCTP_FORCE
());
sctp_add_cmd_sf
(
commands
,
SCTP_CMD_TIMER_RESTART
,
SCTP_TO
(
SCTP_EVENT_TIMEOUT_T2_SHUTDOWN
));
return
SCTP_DISPOSITION_CONSUME
;
}
/*
/*
* Process an unknown chunk.
* Process an unknown chunk.
*
*
...
@@ -4671,28 +4808,20 @@ struct sctp_packet *sctp_ootb_pkt_new(const struct sctp_association *asoc,
...
@@ -4671,28 +4808,20 @@ struct sctp_packet *sctp_ootb_pkt_new(const struct sctp_association *asoc,
/* Make a transport for the bucket, Eliza... */
/* Make a transport for the bucket, Eliza... */
transport
=
sctp_transport_new
(
sctp_source
(
chunk
),
GFP_ATOMIC
);
transport
=
sctp_transport_new
(
sctp_source
(
chunk
),
GFP_ATOMIC
);
if
(
!
transport
)
if
(
!
transport
)
goto
nomem
;
goto
nomem
;
/* Allocate a new packet for sending the response. */
packet
=
t_new
(
struct
sctp_packet
,
GFP_ATOMIC
);
if
(
!
packet
)
goto
nomem_packet
;
/* Cache a route for the transport with the chunk's destination as
/* Cache a route for the transport with the chunk's destination as
* the source address.
* the source address.
*/
*/
sctp_transport_route
(
transport
,
(
union
sctp_addr
*
)
&
chunk
->
dest
,
sctp_transport_route
(
transport
,
(
union
sctp_addr
*
)
&
chunk
->
dest
,
sctp_sk
(
sctp_get_ctl_sock
()));
sctp_sk
(
sctp_get_ctl_sock
()));
packet
=
sctp_packet_init
(
packet
,
transport
,
sport
,
dport
);
packet
=
sctp_packet_init
(
&
transport
->
packet
,
transport
,
sport
,
dport
);
packet
=
sctp_packet_config
(
packet
,
vtag
,
0
,
NULL
);
packet
=
sctp_packet_config
(
packet
,
vtag
,
0
);
return
packet
;
return
packet
;
nomem_packet:
sctp_transport_free
(
transport
);
nomem:
nomem:
return
NULL
;
return
NULL
;
}
}
...
@@ -4701,7 +4830,6 @@ struct sctp_packet *sctp_ootb_pkt_new(const struct sctp_association *asoc,
...
@@ -4701,7 +4830,6 @@ struct sctp_packet *sctp_ootb_pkt_new(const struct sctp_association *asoc,
void
sctp_ootb_pkt_free
(
struct
sctp_packet
*
packet
)
void
sctp_ootb_pkt_free
(
struct
sctp_packet
*
packet
)
{
{
sctp_transport_free
(
packet
->
transport
);
sctp_transport_free
(
packet
->
transport
);
sctp_packet_free
(
packet
);
}
}
/* Send a stale cookie error when a invalid COOKIE ECHO chunk is found */
/* Send a stale cookie error when a invalid COOKIE ECHO chunk is found */
...
...
net/sctp/sm_statetable.c
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 200
3
* (C) Copyright IBM Corp. 2001, 200
4
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
...
@@ -40,6 +40,7 @@
...
@@ -40,6 +40,7 @@
* Hui Huang <hui.huang@nokia.com>
* Hui Huang <hui.huang@nokia.com>
* Daisy Chang <daisyc@us.ibm.com>
* Daisy Chang <daisyc@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
* Ardelle Fan <ardelle.fan@intel.com>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -50,7 +51,7 @@
...
@@ -50,7 +51,7 @@
#include <net/sctp/sm.h>
#include <net/sctp/sm.h>
static
const
sctp_sm_table_entry_t
bug
=
{
static
const
sctp_sm_table_entry_t
bug
=
{
.
fn
=
sctp_sf_bug
,
.
fn
=
sctp_sf_bug
,
.
name
=
"sctp_sf_bug"
.
name
=
"sctp_sf_bug"
};
};
...
@@ -73,7 +74,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
...
@@ -73,7 +74,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
return
sctp_chunk_event_lookup
(
event_subtype
.
chunk
,
state
);
return
sctp_chunk_event_lookup
(
event_subtype
.
chunk
,
state
);
break
;
break
;
case
SCTP_EVENT_T_TIMEOUT
:
case
SCTP_EVENT_T_TIMEOUT
:
DO_LOOKUP
(
SCTP_EVENT_TIMEOUT_MAX
,
timeout
,
DO_LOOKUP
(
SCTP_EVENT_TIMEOUT_MAX
,
timeout
,
timeout_event_table
);
timeout_event_table
);
break
;
break
;
...
@@ -486,6 +487,34 @@ const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][
...
@@ -486,6 +487,34 @@ const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][
TYPE_SCTP_ASCONF_ACK
,
TYPE_SCTP_ASCONF_ACK
,
};
/*state_fn_t addip_chunk_event_table[][] */
};
/*state_fn_t addip_chunk_event_table[][] */
#define TYPE_SCTP_FWD_TSN { \
/* SCTP_STATE_EMPTY */
\
{.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
/* SCTP_STATE_CLOSED */
\
{.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
/* SCTP_STATE_COOKIE_WAIT */
\
{.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
/* SCTP_STATE_COOKIE_ECHOED */
\
{.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
/* SCTP_STATE_ESTABLISHED */
\
{.fn = sctp_sf_eat_fwd_tsn, .name = "sctp_sf_eat_fwd_tsn"}, \
/* SCTP_STATE_SHUTDOWN_PENDING */
\
{.fn = sctp_sf_eat_fwd_tsn, .name = "sctp_sf_eat_fwd_tsn"}, \
/* SCTP_STATE_SHUTDOWN_SENT */
\
{.fn = sctp_sf_eat_fwd_tsn_fast, .name = "sctp_sf_eat_fwd_tsn_fast"}, \
/* SCTP_STATE_SHUTDOWN_RECEIVED */
\
{.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
/* SCTP_STATE_SHUTDOWN_ACK_SENT */
\
{.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
}
/* TYPE_SCTP_FWD_TSN */
/* The primary index for this table is the chunk type.
* The secondary index for this table is the state.
*/
const
sctp_sm_table_entry_t
prsctp_chunk_event_table
[
SCTP_NUM_PRSCTP_CHUNK_TYPES
][
SCTP_STATE_NUM_STATES
]
=
{
TYPE_SCTP_FWD_TSN
,
};
/*state_fn_t prsctp_chunk_event_table[][] */
static
const
sctp_sm_table_entry_t
static
const
sctp_sm_table_entry_t
chunk_event_table_unknown
[
SCTP_STATE_NUM_STATES
]
=
{
chunk_event_table_unknown
[
SCTP_STATE_NUM_STATES
]
=
{
/* SCTP_STATE_EMPTY */
/* SCTP_STATE_EMPTY */
...
@@ -924,6 +953,11 @@ const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
...
@@ -924,6 +953,11 @@ const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
if
(
cid
>=
0
&&
cid
<=
SCTP_CID_BASE_MAX
)
if
(
cid
>=
0
&&
cid
<=
SCTP_CID_BASE_MAX
)
return
&
chunk_event_table
[
cid
][
state
];
return
&
chunk_event_table
[
cid
][
state
];
if
(
sctp_prsctp_enable
)
{
if
(
cid
==
SCTP_CID_FWD_TSN
)
return
&
prsctp_chunk_event_table
[
0
][
state
];
}
if
(
sctp_addip_enable
)
{
if
(
sctp_addip_enable
)
{
if
(
cid
==
SCTP_CID_ASCONF
)
if
(
cid
==
SCTP_CID_ASCONF
)
return
&
addip_chunk_event_table
[
0
][
state
];
return
&
addip_chunk_event_table
[
0
][
state
];
...
...
net/sctp/socket.c
View file @
9b10f4ba
...
@@ -1948,6 +1948,9 @@ static int sctp_setsockopt_mappedv4(struct sock *sk, char *optval, int optlen)
...
@@ -1948,6 +1948,9 @@ static int sctp_setsockopt_mappedv4(struct sock *sk, char *optval, int optlen)
*/
*/
static
int
sctp_setsockopt_maxseg
(
struct
sock
*
sk
,
char
*
optval
,
int
optlen
)
static
int
sctp_setsockopt_maxseg
(
struct
sock
*
sk
,
char
*
optval
,
int
optlen
)
{
{
struct
sctp_association
*
asoc
;
struct
list_head
*
pos
;
struct
sctp_opt
*
sp
=
sctp_sk
(
sk
);
int
val
;
int
val
;
if
(
optlen
<
sizeof
(
int
))
if
(
optlen
<
sizeof
(
int
))
...
@@ -1956,7 +1959,15 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char *optval, int optlen)
...
@@ -1956,7 +1959,15 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char *optval, int optlen)
return
-
EFAULT
;
return
-
EFAULT
;
if
((
val
<
8
)
||
(
val
>
SCTP_MAX_CHUNK_LEN
))
if
((
val
<
8
)
||
(
val
>
SCTP_MAX_CHUNK_LEN
))
return
-
EINVAL
;
return
-
EINVAL
;
sctp_sk
(
sk
)
->
user_frag
=
val
;
sp
->
user_frag
=
val
;
if
(
val
)
{
/* Update the frag_point of the existing associations. */
list_for_each
(
pos
,
&
(
sp
->
ep
->
asocs
))
{
asoc
=
list_entry
(
pos
,
struct
sctp_association
,
asocs
);
asoc
->
frag_point
=
sctp_frag_point
(
sp
,
asoc
->
pmtu
);
}
}
return
0
;
return
0
;
}
}
...
@@ -2531,10 +2542,6 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
...
@@ -2531,10 +2542,6 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
status
.
sstat_penddata
=
sctp_tsnmap_pending
(
&
asoc
->
peer
.
tsn_map
);
status
.
sstat_penddata
=
sctp_tsnmap_pending
(
&
asoc
->
peer
.
tsn_map
);
status
.
sstat_instrms
=
asoc
->
c
.
sinit_max_instreams
;
status
.
sstat_instrms
=
asoc
->
c
.
sinit_max_instreams
;
status
.
sstat_outstrms
=
asoc
->
c
.
sinit_num_ostreams
;
status
.
sstat_outstrms
=
asoc
->
c
.
sinit_num_ostreams
;
/* Just in time frag_point update. */
if
(
sctp_sk
(
sk
)
->
user_frag
)
asoc
->
frag_point
=
min_t
(
int
,
asoc
->
frag_point
,
sctp_sk
(
sk
)
->
user_frag
);
status
.
sstat_fragmentation_point
=
asoc
->
frag_point
;
status
.
sstat_fragmentation_point
=
asoc
->
frag_point
;
status
.
sstat_primary
.
spinfo_assoc_id
=
sctp_assoc2id
(
transport
->
asoc
);
status
.
sstat_primary
.
spinfo_assoc_id
=
sctp_assoc2id
(
transport
->
asoc
);
memcpy
(
&
status
.
sstat_primary
.
spinfo_address
,
memcpy
(
&
status
.
sstat_primary
.
spinfo_address
,
...
...
net/sctp/sysctl.c
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
*
Copyright (c) 2002 International Business Machines Corp.
*
(C) Copyright IBM Corp. 2002, 2004
* Copyright (c) 2002 Intel Corp.
* Copyright (c) 2002 Intel Corp.
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
...
@@ -35,6 +35,7 @@
...
@@ -35,6 +35,7 @@
* Jon Grimm <jgrimm@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
* Ardelle Fan <ardelle.fan@intel.com>
* Ryan Layer <rmlayer@us.ibm.com>
* Ryan Layer <rmlayer@us.ibm.com>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -170,6 +171,14 @@ static ctl_table sctp_table[] = {
...
@@ -170,6 +171,14 @@ static ctl_table sctp_table[] = {
.
mode
=
0644
,
.
mode
=
0644
,
.
proc_handler
=
&
proc_dointvec
.
proc_handler
=
&
proc_dointvec
},
},
{
.
ctl_name
=
NET_SCTP_PRSCTP_ENABLE
,
.
procname
=
"prsctp_enable"
,
.
data
=
&
sctp_prsctp_enable
,
.
maxlen
=
sizeof
(
int
),
.
mode
=
0644
,
.
proc_handler
=
&
proc_dointvec
},
{
.
ctl_name
=
0
}
{
.
ctl_name
=
0
}
};
};
...
...
net/sctp/transport.c
View file @
9b10f4ba
...
@@ -118,7 +118,6 @@ struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
...
@@ -118,7 +118,6 @@ struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
INIT_LIST_HEAD
(
&
peer
->
transmitted
);
INIT_LIST_HEAD
(
&
peer
->
transmitted
);
INIT_LIST_HEAD
(
&
peer
->
send_ready
);
INIT_LIST_HEAD
(
&
peer
->
send_ready
);
INIT_LIST_HEAD
(
&
peer
->
transports
);
INIT_LIST_HEAD
(
&
peer
->
transports
);
sctp_packet_init
(
&
peer
->
packet
,
peer
,
0
,
0
);
/* Set up the retransmission timer. */
/* Set up the retransmission timer. */
init_timer
(
&
peer
->
T3_rtx_timer
);
init_timer
(
&
peer
->
T3_rtx_timer
);
...
@@ -169,6 +168,8 @@ void sctp_transport_destroy(struct sctp_transport *transport)
...
@@ -169,6 +168,8 @@ void sctp_transport_destroy(struct sctp_transport *transport)
if
(
transport
->
asoc
)
if
(
transport
->
asoc
)
sctp_association_put
(
transport
->
asoc
);
sctp_association_put
(
transport
->
asoc
);
sctp_packet_free
(
&
transport
->
packet
);
dst_release
(
transport
->
dst
);
dst_release
(
transport
->
dst
);
kfree
(
transport
);
kfree
(
transport
);
SCTP_DBG_OBJCNT_DEC
(
transport
);
SCTP_DBG_OBJCNT_DEC
(
transport
);
...
...
net/sctp/tsnmap.c
View file @
9b10f4ba
/* SCTP kernel reference Implementation
/* SCTP kernel reference Implementation
* (C) Copyright IBM Corp. 2001, 2004
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2000 Cisco, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001-2003 International Business Machines, Corp.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001 Intel Corp.
*
*
* This file is part of the SCTP kernel reference Implementation
* This file is part of the SCTP kernel reference Implementation
...
@@ -36,6 +36,7 @@
...
@@ -36,6 +36,7 @@
* La Monte H.P. Yarroll <piggy@acm.org>
* La Monte H.P. Yarroll <piggy@acm.org>
* Jon Grimm <jgrimm@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* Karl Knutson <karl@athena.chicago.il.us>
* Karl Knutson <karl@athena.chicago.il.us>
* Sridhar Samudrala <sri@us.ibm.com>
*
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
* be incorporated into the next SCTP release.
...
@@ -253,6 +254,40 @@ int sctp_tsnmap_next_gap_ack(const struct sctp_tsnmap *map,
...
@@ -253,6 +254,40 @@ int sctp_tsnmap_next_gap_ack(const struct sctp_tsnmap *map,
return
ended
;
return
ended
;
}
}
/* Mark this and any lower TSN as seen. */
void
sctp_tsnmap_skip
(
struct
sctp_tsnmap
*
map
,
__u32
tsn
)
{
__s32
gap
;
/* Vacuously mark any TSN which precedes the map base or
* exceeds the end of the map.
*/
if
(
TSN_lt
(
tsn
,
map
->
base_tsn
))
return
;
if
(
!
TSN_lt
(
tsn
,
map
->
base_tsn
+
map
->
len
+
map
->
len
))
return
;
/* Bump the max. */
if
(
TSN_lt
(
map
->
max_tsn_seen
,
tsn
))
map
->
max_tsn_seen
=
tsn
;
/* Assert: TSN is in range. */
gap
=
tsn
-
map
->
base_tsn
+
1
;
/* Mark the TSNs as received. */
if
(
gap
<=
map
->
len
)
memset
(
map
->
tsn_map
,
0x01
,
gap
);
else
{
memset
(
map
->
tsn_map
,
0x01
,
map
->
len
);
memset
(
map
->
overflow_map
,
0x01
,
(
gap
-
map
->
len
));
}
/* Go fixup any internal TSN mapping variables including
* cumulative_tsn_ack_point.
*/
sctp_tsnmap_update
(
map
);
}
/********************************************************************
/********************************************************************
* 2nd Level Abstractions
* 2nd Level Abstractions
********************************************************************/
********************************************************************/
...
...
net/sctp/ulpevent.c
View file @
9b10f4ba
...
@@ -839,6 +839,9 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
...
@@ -839,6 +839,9 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
sctp_ulpevent_set_owner
(
event
,
asoc
);
sctp_ulpevent_set_owner
(
event
,
asoc
);
sctp_assoc_rwnd_decrease
(
asoc
,
skb_headlen
(
skb
));
sctp_assoc_rwnd_decrease
(
asoc
,
skb_headlen
(
skb
));
if
(
!
skb
->
data_len
)
return
;
/* Note: Not clearing the entire event struct as this is just a
/* Note: Not clearing the entire event struct as this is just a
* fragment of the real event. However, we still need to do rwnd
* fragment of the real event. However, we still need to do rwnd
* accounting.
* accounting.
...
@@ -867,6 +870,9 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
...
@@ -867,6 +870,9 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
skb
=
sctp_event2skb
(
event
);
skb
=
sctp_event2skb
(
event
);
sctp_assoc_rwnd_increase
(
event
->
asoc
,
skb_headlen
(
skb
));
sctp_assoc_rwnd_increase
(
event
->
asoc
,
skb_headlen
(
skb
));
if
(
!
skb
->
data_len
)
goto
done
;
/* Don't forget the fragments. */
/* Don't forget the fragments. */
for
(
frag
=
skb_shinfo
(
skb
)
->
frag_list
;
frag
;
frag
=
frag
->
next
)
{
for
(
frag
=
skb_shinfo
(
skb
)
->
frag_list
;
frag
;
frag
=
frag
->
next
)
{
/* NOTE: skb_shinfos are recursive. Although IP returns
/* NOTE: skb_shinfos are recursive. Although IP returns
...
@@ -875,6 +881,8 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
...
@@ -875,6 +881,8 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
*/
*/
sctp_ulpevent_release_data
(
sctp_skb2event
(
frag
));
sctp_ulpevent_release_data
(
sctp_skb2event
(
frag
));
}
}
done:
sctp_ulpevent_release_owner
(
event
);
sctp_ulpevent_release_owner
(
event
);
}
}
...
...
net/sctp/ulpqueue.c
View file @
9b10f4ba
...
@@ -680,6 +680,71 @@ static inline struct sctp_ulpevent *sctp_ulpq_order(struct sctp_ulpq *ulpq,
...
@@ -680,6 +680,71 @@ static inline struct sctp_ulpevent *sctp_ulpq_order(struct sctp_ulpq *ulpq,
return
event
;
return
event
;
}
}
/* Helper function to gather skbs that have possibly become
* ordered by forward tsn skipping their dependencies.
*/
static
inline
void
sctp_ulpq_reap_ordered
(
struct
sctp_ulpq
*
ulpq
)
{
struct
sk_buff
*
pos
,
*
tmp
;
struct
sctp_ulpevent
*
cevent
;
struct
sctp_ulpevent
*
event
=
NULL
;
struct
sctp_stream
*
in
;
struct
sk_buff_head
temp
;
__u16
csid
,
cssn
;
in
=
&
ulpq
->
asoc
->
ssnmap
->
in
;
/* We are holding the chunks by stream, by SSN. */
sctp_skb_for_each
(
pos
,
&
ulpq
->
lobby
,
tmp
)
{
cevent
=
(
struct
sctp_ulpevent
*
)
pos
->
cb
;
csid
=
cevent
->
stream
;
cssn
=
cevent
->
ssn
;
if
(
cssn
!=
sctp_ssn_peek
(
in
,
csid
))
break
;
/* Found it, so mark in the ssnmap. */
sctp_ssn_next
(
in
,
csid
);
__skb_unlink
(
pos
,
pos
->
list
);
if
(
!
event
)
{
/* Create a temporary list to collect chunks on. */
event
=
sctp_skb2event
(
pos
);
skb_queue_head_init
(
&
temp
);
__skb_queue_tail
(
&
temp
,
sctp_event2skb
(
event
));
}
else
{
/* Attach all gathered skbs to the event. */
__skb_queue_tail
(
sctp_event2skb
(
event
)
->
list
,
pos
);
}
}
/* Send event to the ULP. */
if
(
event
)
sctp_ulpq_tail_event
(
ulpq
,
event
);
}
/* Skip over an SSN. */
void
sctp_ulpq_skip
(
struct
sctp_ulpq
*
ulpq
,
__u16
sid
,
__u16
ssn
)
{
struct
sctp_stream
*
in
;
/* Note: The stream ID must be verified before this routine. */
in
=
&
ulpq
->
asoc
->
ssnmap
->
in
;
/* Is this an old SSN? If so ignore. */
if
(
SSN_lt
(
ssn
,
sctp_ssn_peek
(
in
,
sid
)))
return
;
/* Mark that we are no longer expecting this SSN or lower. */
sctp_ssn_skip
(
in
,
sid
,
ssn
);
/* Go find any other chunks that were waiting for
* ordering and deliver them if needed.
*/
sctp_ulpq_reap_ordered
(
ulpq
);
return
;
}
/* Renege 'needed' bytes from the ordering queue. */
/* Renege 'needed' bytes from the ordering queue. */
static
__u16
sctp_ulpq_renege_order
(
struct
sctp_ulpq
*
ulpq
,
__u16
needed
)
static
__u16
sctp_ulpq_renege_order
(
struct
sctp_ulpq
*
ulpq
,
__u16
needed
)
{
{
...
...
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