Bug 761

Summary:

sftp not exiting in batch mode

Product:

Portable OpenSSH

Reporter:

Mark Murray <mmurra28>

Component:

sftp

Assignee:

OpenSSH Bugzilla mailing list <openssh-bugs>

Status:

CLOSED WORKSFORME

Severity:

normal

Priority:

Version:

3.6.1p2

Hardware:

All

OS:

AIX

Attachments:

Description	Flags
sshd_config file	none

Description Mark Murray 2003-11-18 11:14:57 AEDT

The root cause appears to be the way sshd parses it's configuration file and 
subsequently processes exit codes from subprocesses (such as sftp-server).  
When the sftp server exits , it passes either a signal or exit code back to 
sshd, and then sshd should in turn drop the connection.  sshd does not drop the 
connection.  However, when we switch LogLevel from INFO to DEBUG in 
sshd_config, when sftp exits, sshd now exits properly.  The only difference 
here, is the processing thread within sshd's subsystem shell.  We even verified 
different versions of the sftp-server subsystem, both with the same results.

Comment 1 Damien Miller 2003-11-18 12:44:34 AEDT

Can't replicate:

[djm@sakura djm]$ sftp -b testbatch localhost
Connecting to localhost...
root@localhost's password:
sftp> get /bin/ls /tmp/foo
Fetching /bin/ls to /tmp/foo
sftp> ls /tmp/foo
/tmp/foo
sftp> put /tmp/foo /tmp/bar
Uploading /tmp/foo to /tmp/bar
Uploading /tmp/foo to /tmp/bar
sftp> ls -l /tmp/bar
-rwxr-xr-x    0 0        0          178028 Nov 19 06:42 /tmp/bar
sftp>
sftp>
[djm@sakura djm]$ ps ax | grep sftp
 3917 p2  I+      0:00.01 grep sftp
[djm@sakura djm]$ cat testbatch
get /bin/ls /tmp/foo
ls /tmp/foo
put /tmp/foo /tmp/bar
ls -l /tmp/bar

Comment 2 Tim Schauer 2003-11-18 14:21:51 AEDT

Created attachment 502 [details]
sshd_config file

try changing the LogLevel from DEBUG3 to INFO or AUTH, it appears that sftp
doesn't exit (this test was conducted from a sun client to an AIX sftp-server.

Comment 3 Darren Tucker 2003-11-18 17:07:27 AEDT

Can't replicate either (AIX 5.2 ML1), with LogLevel either INFO or DEBUG3.  
Tried both a local and remote (Solaris 8) client.

What version and maintenance level of AIX do you have?  Can you replicate with 
both client and server on the AIX box?  For that matter, can you replicate with 
the current version of OpenSSH?  Can you attach (note: create attachment, not 
paste into comments) the debug output from sftp (eg "sftp -vvv -b testbatch 
localhost").

$ echo `uname` `oslevel -r`
AIX 5200-01
$ ssh -V
OpenSSH_3.6.1p2, SSH protocols 1.5/2.0, OpenSSL 0x0090702f
 grep LogLevel /usr/local/etc/sshd_config
LogLevel INFO
$ sftp -b testbatch localhost
Connecting to localhost...
dtucker@localhost's password:
sftp> get /bin/ls /tmp/foo
sftp> ls /tmp/foo
/tmp/foo
sftp> put /tmp/foo /tmp/bar
Uploading /tmp/foo to /tmp/bar
sftp> ls -l /tmp/bar
-rwxr-xr-x    0 500      1           22488 Nov 19 11:00 /tmp/bar
sftp>
$ ps -eaf |grep sftp
 dtucker  2610 10118   1 11:00:27  pts/0  0:00 grep sftp

Comment 4 Darren Tucker 2003-12-23 00:25:44 AEDT

No followup = closed bug.

Comment 5 Damien Miller 2004-04-14 12:24:20 AEST

Mass change of RESOLVED bugs to CLOSED