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nexedi
linux
Commits
e8120ed0
Commit
e8120ed0
authored
Dec 05, 2002
by
Sridhar Samudrala
Committed by
Sridhar Samudrala
Dec 05, 2002
Browse files
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Plain Diff
[SCTP] Stale cookie support. (ardelle.fan)
parent
079b9dc1
Changes
10
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Showing
10 changed files
with
206 additions
and
70 deletions
+206
-70
include/linux/sysctl.h
include/linux/sysctl.h
+2
-1
include/net/sctp/sm.h
include/net/sctp/sm.h
+10
-3
include/net/sctp/structs.h
include/net/sctp/structs.h
+4
-1
net/sctp/associola.c
net/sctp/associola.c
+3
-2
net/sctp/input.c
net/sctp/input.c
+5
-2
net/sctp/protocol.c
net/sctp/protocol.c
+4
-0
net/sctp/sm_make_chunk.c
net/sctp/sm_make_chunk.c
+37
-5
net/sctp/sm_statefuns.c
net/sctp/sm_statefuns.c
+135
-55
net/sctp/sm_statetable.c
net/sctp/sm_statetable.c
+1
-1
net/sctp/sysctl.c
net/sctp/sysctl.c
+5
-0
No files found.
include/linux/sysctl.h
View file @
e8120ed0
...
...
@@ -543,7 +543,8 @@ enum {
NET_SCTP_PATH_MAX_RETRANS
=
8
,
NET_SCTP_MAX_INIT_RETRANSMITS
=
9
,
NET_SCTP_HB_INTERVAL
=
10
,
NET_SCTP_MAX_BURST
=
11
,
NET_SCTP_PRESERVE_ENABLE
=
11
,
NET_SCTP_MAX_BURST
=
12
,
};
/* CTL_PROC names: */
...
...
include/net/sctp/sm.h
View file @
e8120ed0
...
...
@@ -140,6 +140,8 @@ sctp_state_fn_t sctp_sf_do_5_2_2_dupinit;
sctp_state_fn_t
sctp_sf_do_5_2_4_dupcook
;
sctp_state_fn_t
sctp_sf_unk_chunk
;
sctp_state_fn_t
sctp_sf_do_8_5_1_E_sa
;
sctp_state_fn_t
sctp_sf_cookie_echoed_err
;
sctp_state_fn_t
sctp_sf_do_5_2_6_stale
;
/* Prototypes for primitive event state functions. */
sctp_state_fn_t
sctp_sf_do_prm_asoc
;
...
...
@@ -175,7 +177,6 @@ sctp_state_fn_t sctp_sf_autoclose_timer_expire;
*/
/* Prototypes for chunk state functions. Not in use. */
sctp_state_fn_t
sctp_sf_do_5_2_6_stale
;
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
;
...
...
@@ -211,7 +212,7 @@ void sctp_populate_tie_tags(__u8 *cookie, __u32 curTag, __u32 hisTag);
/* Prototypes for chunk-building functions. */
sctp_chunk_t
*
sctp_make_init
(
const
sctp_association_t
*
,
const
sctp_bind_addr_t
*
,
int
priority
);
int
priority
,
int
vparam_len
);
sctp_chunk_t
*
sctp_make_init_ack
(
const
sctp_association_t
*
,
const
sctp_chunk_t
*
,
const
int
priority
,
...
...
@@ -322,9 +323,15 @@ sctp_pack_cookie(const sctp_endpoint_t *, const sctp_association_t *,
const
__u8
*
,
int
addrs_len
);
sctp_association_t
*
sctp_unpack_cookie
(
const
sctp_endpoint_t
*
,
const
sctp_association_t
*
,
sctp_chunk_t
*
,
int
priority
,
int
*
err
);
sctp_chunk_t
*
,
int
priority
,
int
*
err
,
sctp_chunk_t
**
err_chk_p
);
int
sctp_addip_addr_config
(
sctp_association_t
*
,
sctp_param_t
,
struct
sockaddr_storage
*
,
int
);
void
sctp_send_stale_cookie_err
(
const
sctp_endpoint_t
*
ep
,
const
sctp_association_t
*
asoc
,
const
sctp_chunk_t
*
chunk
,
sctp_cmd_seq_t
*
commands
,
sctp_chunk_t
*
err_chunk
);
/* 3rd level prototypes */
__u32
sctp_generate_tag
(
const
sctp_endpoint_t
*
);
...
...
include/net/sctp/structs.h
View file @
e8120ed0
...
...
@@ -42,6 +42,7 @@
* Sridhar Samudrala <sri@us.ibm.com>
* Daisy Chang <daisyc@us.ibm.com>
* Dajiang Zhang <dajiang.zhang@nokia.com>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
...
...
@@ -182,6 +183,9 @@ struct SCTP_protocol {
/* Valid.Cookie.Life - 60 seconds */
int
valid_cookie_life
;
/* Whether Cookie Preservative is enabled(1) or not(0) */
int
cookie_preserve_enable
;
/* Association.Max.Retrans - 10 attempts
* Path.Max.Retrans - 5 attempts (per destination address)
...
...
@@ -1278,7 +1282,6 @@ struct SCTP_association {
/* The cookie life I award for any cookie. */
struct
timeval
cookie_life
;
__u32
cookie_preserve
;
/* Overall : The overall association error count.
* Error Count : [Clear this any time I get something.]
...
...
net/sctp/associola.c
View file @
e8120ed0
...
...
@@ -128,8 +128,9 @@ sctp_association_t *sctp_association_init(sctp_association_t *asoc,
asoc
->
state_timestamp
=
jiffies
;
/* Set things that have constant value. */
asoc
->
cookie_life
.
tv_sec
=
SCTP_DEFAULT_COOKIE_LIFE_SEC
;
asoc
->
cookie_life
.
tv_usec
=
SCTP_DEFAULT_COOKIE_LIFE_USEC
;
asoc
->
cookie_life
.
tv_sec
=
sctp_proto
.
valid_cookie_life
/
HZ
;
asoc
->
cookie_life
.
tv_usec
=
(
sctp_proto
.
valid_cookie_life
%
HZ
)
*
1000000L
/
HZ
;
asoc
->
pmtu
=
0
;
asoc
->
frag_point
=
0
;
...
...
net/sctp/input.c
View file @
e8120ed0
...
...
@@ -42,6 +42,7 @@
* Hui Huang <hui.huang@nokia.com>
* Daisy Chang <daisyc@us.ibm.com>
* Sridhar Samudrala <sri@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
...
...
@@ -279,6 +280,7 @@ int sctp_rcv_ootb(struct sk_buff *skb)
{
sctp_chunkhdr_t
*
ch
;
__u8
*
ch_end
;
sctp_errhdr_t
*
err
;
ch
=
(
sctp_chunkhdr_t
*
)
skb
->
data
;
...
...
@@ -308,8 +310,9 @@ int sctp_rcv_ootb(struct sk_buff *skb)
goto
discard
;
if
(
ch
->
type
==
SCTP_CID_ERROR
)
{
/* FIXME - Need to check the "Stale cookie" ERROR. */
goto
discard
;
err
=
(
sctp_errhdr_t
*
)(
ch
+
sizeof
(
sctp_chunkhdr_t
));
if
(
SCTP_ERROR_STALE_COOKIE
==
err
->
cause
)
goto
discard
;
}
ch
=
(
sctp_chunkhdr_t
*
)
ch_end
;
...
...
net/sctp/protocol.c
View file @
e8120ed0
...
...
@@ -40,6 +40,7 @@
* Jon Grimm <jgrimm@us.ibm.com>
* Sridhar Samudrala <sri@us.ibm.com>
* Daisy Chang <daisyc@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
...
...
@@ -691,6 +692,9 @@ int sctp_init(void)
/* Valid.Cookie.Life - 60 seconds */
sctp_proto
.
valid_cookie_life
=
60
*
HZ
;
/* Whether Cookie Preservative is enabled(1) or not(0) */
sctp_proto
.
cookie_preserve_enable
=
1
;
/* Max.Burst - 4 */
sctp_proto
.
max_burst
=
SCTP_MAX_BURST
;
...
...
net/sctp/sm_make_chunk.c
View file @
e8120ed0
...
...
@@ -163,7 +163,7 @@ void sctp_init_cause(sctp_chunk_t *chunk, __u16 cause_code,
*/
sctp_chunk_t
*
sctp_make_init
(
const
sctp_association_t
*
asoc
,
const
sctp_bind_addr_t
*
bp
,
int
priority
)
int
priority
,
int
vparam_len
)
{
sctp_inithdr_t
init
;
union
sctp_params
addrs
;
...
...
@@ -192,6 +192,7 @@ sctp_chunk_t *sctp_make_init(const sctp_association_t *asoc,
chunksize
=
sizeof
(
init
)
+
addrs_len
+
SCTP_SAT_LEN
;
chunksize
+=
sizeof
(
ecap_param
);
chunksize
+=
vparam_len
;
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
...
...
@@ -1337,7 +1338,7 @@ sctp_cookie_param_t *sctp_pack_cookie(const sctp_endpoint_t *ep,
sctp_association_t
*
sctp_unpack_cookie
(
const
sctp_endpoint_t
*
ep
,
const
sctp_association_t
*
asoc
,
sctp_chunk_t
*
chunk
,
int
priority
,
int
*
error
)
int
*
error
,
sctp_chunk_t
**
err_chk_p
)
{
sctp_association_t
*
retval
=
NULL
;
sctp_signed_cookie_t
*
cookie
;
...
...
@@ -1394,7 +1395,29 @@ sctp_association_t *sctp_unpack_cookie(const sctp_endpoint_t *ep,
* for init collision case of lost COOKIE ACK.
*/
if
(
!
asoc
&&
tv_lt
(
bear_cookie
->
expiration
,
chunk
->
skb
->
stamp
))
{
*
error
=
-
SCTP_IERROR_STALE_COOKIE
;
/*
* Section 3.3.10.3 Stale Cookie Error (3)
*
* Cause of error
* ---------------
* Stale Cookie Error: Indicates the receipt of a valid State
* Cookie that has expired.
*/
*
err_chk_p
=
sctp_make_op_error_space
(
asoc
,
chunk
,
ntohs
(
chunk
->
chunk_hdr
->
length
));
if
(
*
err_chk_p
)
{
suseconds_t
usecs
=
(
chunk
->
skb
->
stamp
.
tv_sec
-
bear_cookie
->
expiration
.
tv_sec
)
*
1000000L
+
chunk
->
skb
->
stamp
.
tv_usec
-
bear_cookie
->
expiration
.
tv_usec
;
usecs
=
htonl
(
usecs
);
sctp_init_cause
(
*
err_chk_p
,
SCTP_ERROR_STALE_COOKIE
,
&
usecs
,
sizeof
(
usecs
));
*
error
=
-
SCTP_IERROR_STALE_COOKIE
;
}
else
*
error
=
-
SCTP_IERROR_NOMEM
;
goto
fail
;
}
...
...
@@ -1751,6 +1774,7 @@ int sctp_process_param(sctp_association_t *asoc, union sctp_params param,
__u16
sat
;
int
retval
=
1
;
sctp_scope_t
scope
;
time_t
stale
;
/* We maintain all INIT parameters in network byte order all the
* time. This allows us to not worry about whether the parameters
...
...
@@ -1770,8 +1794,16 @@ int sctp_process_param(sctp_association_t *asoc, union sctp_params param,
break
;
case
SCTP_PARAM_COOKIE_PRESERVATIVE
:
asoc
->
cookie_preserve
=
ntohl
(
param
.
life
->
lifespan_increment
);
if
(
!
sctp_proto
.
cookie_preserve_enable
)
break
;
stale
=
ntohl
(
param
.
life
->
lifespan_increment
);
/* Suggested Cookie Life span increment's unit is msec,
* (1/1000sec).
*/
asoc
->
cookie_life
.
tv_sec
+=
stale
/
1000
;
asoc
->
cookie_life
.
tv_usec
+=
(
stale
%
1000
)
*
1000
;
break
;
case
SCTP_PARAM_HOST_NAME_ADDRESS
:
...
...
net/sctp/sm_statefuns.c
View file @
e8120ed0
This diff is collapsed.
Click to expand it.
net/sctp/sm_statetable.c
View file @
e8120ed0
...
...
@@ -295,7 +295,7 @@ sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
/* SCTP_STATE_COOKIE_WAIT */
\
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
/* SCTP_STATE_COOKIE_ECHOED */
\
{.fn = sctp_sf_
not_impl, .name = "sctp_sf_not_impl
"}, \
{.fn = sctp_sf_
cookie_echoed_err, .name = "sctp_sf_cookie_echoed_err
"}, \
/* SCTP_STATE_ESTABLISHED */
\
{.fn = sctp_sf_operr_notify, .name = "sctp_sf_operr_notify"}, \
/* SCTP_STATE_SHUTDOWN_PENDING */
\
...
...
net/sctp/sysctl.c
View file @
e8120ed0
/* SCTP kernel reference Implementation
* Copyright (c) 2002 International Business Machines Corp.
* Copyright (c) 2002 Intel Corp.
*
* This file is part of the SCTP kernel reference Implementation
*
...
...
@@ -32,6 +33,7 @@
* Written or modified by:
* Mingqin Liu <liuming@us.ibm.com>
* Jon Grimm <jgrimm@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
...
...
@@ -70,6 +72,9 @@ static ctl_table sctp_table[] = {
{
NET_SCTP_HB_INTERVAL
,
"hb_interval"
,
&
sctp_proto
.
hb_interval
,
sizeof
(
int
),
0644
,
NULL
,
&
proc_dointvec_jiffies
,
&
sysctl_jiffies
},
{
NET_SCTP_PRESERVE_ENABLE
,
"cookie_preserve_enable"
,
&
sctp_proto
.
cookie_preserve_enable
,
sizeof
(
int
),
0644
,
NULL
,
&
proc_dointvec_jiffies
,
&
sysctl_jiffies
},
{
NET_SCTP_RTO_ALPHA
,
"rto_alpha_exp_divisor"
,
&
sctp_proto
.
rto_alpha
,
sizeof
(
int
),
0644
,
NULL
,
&
proc_dointvec
},
...
...
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