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Main
Synchronet
Commits
0c5a796c
Commit
0c5a796c
authored
1 year ago
by
Deucе
Browse files
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Patches
Plain Diff
Somewhat working now... still some issues getting the second channel
working reliably though.
parent
ab866866
No related branches found
No related tags found
No related merge requests found
Pipeline
#5115
failed
1 year ago
Stage: build
Changes
1
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1
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1 changed file
src/syncterm/ssh.c
+75
-39
75 additions, 39 deletions
src/syncterm/ssh.c
with
75 additions
and
39 deletions
src/syncterm/ssh.c
+
75
−
39
View file @
0c5a796c
...
...
@@ -2,11 +2,13 @@
/* $Id: ssh.c,v 1.31 2020/05/28 22:58:26 deuce Exp $ */
#include
<assert.h>
#include
<stdlib.h>
#include
"bbslist.h"
#include
"ciolib.h"
#include
"conn.h"
#include
"eventwrap.h"
#include
"gen_defs.h"
#include
"genwrap.h"
#include
"sftp.h"
...
...
@@ -51,60 +53,95 @@ cryptlib_error_message(int status, const char *msg)
static
void
close_sftp_channel
(
void
)
{
if
(
sftp_state
==
NULL
)
return
;
pthread_mutex_lock
(
&
ssh_mutex
);
if
(
sftp_channel
!=
-
1
)
{
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
sftp_channel
)
;
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL_ACTIVE
,
0
);
if
(
cryptStatusOK
(
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
sftp_channel
)
))
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL_ACTIVE
,
0
);
sftp_channel
=
-
1
;
}
pthread_mutex_unlock
(
&
ssh_mutex
);
sftpc_finish
(
sftp_state
);
sftp_state
=
NULL
;
}
static
void
close_ssh_channel
(
void
)
{
pthread_mutex_lock
(
&
ssh_mutex
);
if
(
ssh_channel
!=
-
1
)
{
if
(
cryptStatusOK
(
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
ssh_channel
)))
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL_ACTIVE
,
0
);
ssh_channel
=
-
1
;
}
pthread_mutex_unlock
(
&
ssh_mutex
);
}
void
ssh_input_thread
(
void
*
args
)
{
int
status
;
int
popstatus
,
gchstatus
,
status
;
int
rd
;
size_t
buffered
;
size_t
buffer
;
int
chan
;
SetThreadName
(
"SSH Input"
);
conn_api
.
input_thread_running
=
1
;
while
(
ssh_active
&&
!
conn_api
.
terminate
)
{
if
(
!
socket_readable
(
ssh_sock
,
100
))
continue
;
pthread_mutex_lock
(
&
ssh_mutex
);
status
=
cl
.
FlushData
(
ssh_session
)
;
status
=
cl
.
Pop
Data
(
ssh_session
,
conn_api
.
rd_buf
,
conn_api
.
rd_buf_size
,
&
rd
);
if
(
cryptStatusOK
(
status
))
status
=
cl
.
GetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
&
chan
);
conn_api
.
input_thread_running
=
1
;
cl
.
Flush
Data
(
ssh_session
);
popstatus
=
cl
.
PopData
(
ssh_session
,
conn_api
.
rd_buf
,
conn_api
.
rd_buf_size
,
&
rd
);
gch
status
=
cl
.
GetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
&
chan
);
pthread_mutex_unlock
(
&
ssh_mutex
);
// Handle case where there was socket activity without readable data (ie: rekey)
if
(
status
==
CRYPT_ERROR_TIMEOUT
)
if
(
pop
status
==
CRYPT_ERROR_TIMEOUT
)
continue
;
if
(
cryptStatusError
(
status
))
{
if
((
status
==
CRYPT_ERROR_COMPLETE
)
||
(
status
==
CRYPT_ERROR_READ
)
||
(
status
==
CRYPT_ERROR_NOTFOUND
))
{
/* connection closed */
ssh_active
=
true
;
// A final read on a channel just occured... figure out which is missing...
if
(
gchstatus
==
CRYPT_ERROR_NOTFOUND
)
{
if
(
ssh_channel
!=
-
1
)
{
status
=
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
ssh_channel
);
if
(
status
==
CRYPT_ERROR_NOTFOUND
)
{
chan
=
ssh_channel
;
}
}
if
(
chan
==
-
1
)
{
if
(
sftp_channel
!=
-
1
)
{
status
=
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
ssh_channel
);
if
(
status
==
CRYPT_ERROR_NOTFOUND
)
{
chan
=
sftp_channel
;
}
}
}
}
if
(
cryptStatusError
(
popstatus
))
{
if
((
popstatus
==
CRYPT_ERROR_COMPLETE
)
||
(
popstatus
==
CRYPT_ERROR_READ
))
{
/* connection closed */
if
(
chan
==
ssh_channel
)
break
;
}
else
{
cryptlib_error_message
(
popstatus
,
"recieving data"
);
break
;
}
cryptlib_error_message
(
status
,
"recieving data"
);
ssh_active
=
true
;
break
;
}
else
{
if
(
chan
==
sftp_channel
)
{
if
(
!
sftpc_recv
(
sftp_state
,
conn_api
.
rd_buf
,
rd
))
{
ssh_active
=
true
;
close_sftp_channel
();
continue
;
}
if
(
gchstatus
==
CRYPT_ERROR_NOTFOUND
)
{
sftp_channel
=
-
1
;
}
}
else
{
else
if
(
chan
==
ssh_channel
)
{
buffered
=
0
;
while
(
buffered
<
rd
)
{
pthread_mutex_lock
(
&
(
conn_inbuf
.
mutex
));
...
...
@@ -112,6 +149,13 @@ ssh_input_thread(void *args)
buffered
+=
conn_buf_put
(
&
conn_inbuf
,
conn_api
.
rd_buf
+
buffered
,
buffer
);
pthread_mutex_unlock
(
&
(
conn_inbuf
.
mutex
));
}
if
(
gchstatus
==
CRYPT_ERROR_NOTFOUND
)
{
ssh_channel
=
-
1
;
}
}
else
{
assert
(
true
);
cryptlib_error_message
(
gchstatus
,
"unknown channel"
);
}
}
}
...
...
@@ -128,7 +172,7 @@ ssh_output_thread(void *args)
SetThreadName
(
"SSH Output"
);
conn_api
.
output_thread_running
=
1
;
while
(
ssh_active
&&
!
conn_api
.
terminate
)
{
while
(
ssh_active
&&
!
conn_api
.
terminate
&&
ssh_channel
!=
-
1
)
{
pthread_mutex_lock
(
&
(
conn_outbuf
.
mutex
));
wr
=
conn_buf_wait_bytes
(
&
conn_outbuf
,
1
,
100
);
if
(
wr
)
{
...
...
@@ -138,17 +182,19 @@ ssh_output_thread(void *args)
while
(
ssh_active
&&
sent
<
wr
)
{
ret
=
0
;
pthread_mutex_lock
(
&
ssh_mutex
);
if
(
ssh_channel
==
-
1
)
{
pthread_mutex_unlock
(
&
ssh_mutex
);
break
;
}
status
=
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
ssh_channel
);
if
(
cryptStatusOK
(
status
))
status
=
cl
.
PushData
(
ssh_session
,
conn_api
.
wr_buf
+
sent
,
wr
-
sent
,
&
ret
);
pthread_mutex_unlock
(
&
ssh_mutex
);
if
(
cryptStatusError
(
status
))
{
if
((
status
==
CRYPT_ERROR_COMPLETE
)
||
(
status
==
CRYPT_ERROR_NOTFOUND
))
{
/* connection closed */
ssh_active
=
true
;
break
;
}
cryptlib_error_message
(
status
,
"sending data"
);
ssh_active
=
true
;
break
;
}
sent
+=
ret
;
...
...
@@ -187,11 +233,9 @@ sftp_send(uint8_t *buf, size_t sz, void *cb_data)
cryptlib_error_message
(
status
,
"sending sftp data"
);
if
(
cryptStatusError
(
status
))
{
if
(
status
==
CRYPT_ERROR_COMPLETE
)
{
/* connection closed */
ssh_active
=
true
;
// TODO: Why are we doing this?
break
;
}
cryptlib_error_message
(
status
,
"sending sftp data"
);
ssh_active
=
true
;
break
;
}
sent
+=
ret
;
...
...
@@ -380,6 +424,7 @@ ssh_connect(struct bbslist *bbs)
uifc
.
pop
(
NULL
);
return
-
1
;
}
cl
.
FlushData
(
ssh_session
);
ssh_active
=
true
;
if
(
!
bbs
->
hidepopups
)
{
...
...
@@ -426,57 +471,47 @@ ssh_connect(struct bbslist *bbs)
#if NOTYET
// TODO: Without this sleep, all is woe.
SLEEP
(
10
);
//SLEEP(10);
while
(
!
conn_api
.
input_thread_running
)
SLEEP
(
1
);
if
(
cryptStatusOK
(
status
))
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
if
(
!
bbs
->
hidepopups
)
{
/* Clear ownership */
uifc
.
pop
(
NULL
);
uifc
.
pop
(
"Creating SFTP Channel"
);
}
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
pthread_mutex_lock
(
&
ssh_mutex
);
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
status
=
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
CRYPT_UNUSED
);
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
if
(
cryptStatusError
(
status
))
cryptlib_error_message
(
status
,
"setting new channel"
);
if
(
cryptStatusOK
(
status
))
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
status
=
cl
.
SetAttributeString
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL_TYPE
,
"subsystem"
,
9
);
if
(
cryptStatusError
(
status
))
cryptlib_error_message
(
status
,
"setting channel type"
);
if
(
cryptStatusOK
(
status
))
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
status
=
cl
.
SetAttributeString
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL_ARG1
,
"sftp"
,
4
);
if
(
cryptStatusError
(
status
))
cryptlib_error_message
(
status
,
"setting subsystem"
);
if
(
cryptStatusOK
(
status
))
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
status
=
cl
.
GetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
&
sftp_channel
);
if
(
cryptStatusError
(
status
))
cryptlib_error_message
(
status
,
"getting new channel"
);
if
(
cryptStatusOK
(
status
))
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
// TODO: Do something...
}
}
}
}
pthread_mutex_unlock
(
&
ssh_mutex
);
}
if
(
sftp_channel
!=
-
1
)
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
pthread_mutex_lock
(
&
ssh_mutex
);
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL
,
sftp_channel
);
status
=
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_SSH_CHANNEL_ACTIVE
,
1
);
pthread_mutex_unlock
(
&
ssh_mutex
);
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
if
(
cryptStatusError
(
status
))
if
(
cryptStatusError
(
status
))
{
cryptlib_error_message
(
status
,
"activating sftp session"
);
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
}
if
(
cryptStatusOK
(
status
))
{
fprintf
(
stderr
,
"%s:%d
\n
"
,
__FILE__
,
__LINE__
);
sftp_state
=
sftpc_begin
(
sftp_send
,
NULL
);
if
(
sftp_state
==
NULL
)
fprintf
(
stderr
,
"Failure!
\n
"
);
...
...
@@ -498,7 +533,8 @@ ssh_close(void)
char
garbage
[
1024
];
conn_api
.
terminate
=
1
;
cl
.
SetAttribute
(
ssh_session
,
CRYPT_SESSINFO_ACTIVE
,
0
);
close_sftp_channel
();
close_ssh_channel
();
ssh_active
=
false
;
while
(
conn_api
.
input_thread_running
==
1
||
conn_api
.
output_thread_running
==
1
)
{
conn_recv_upto
(
garbage
,
sizeof
(
garbage
),
0
);
...
...
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