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On Thu, 7 Aug 2014, Ben Johnson wrote:
On 7/29/2014 11:20 AM, Ben Johnson wrote:
On 7/29/2014 3:13 AM, Steffen Kaiser wrote:
On Mon, 28 Jul 2014, Ben Johnson wrote:
I have some debugging output in my pipe script; the output looks
How does your script looks like?
http://pastebin.com/nh8SwQtw
Copying message contents to temporary file for debugging
purposes; file is: /tmp/sendmail-msg-7662.txt Checking if the
command-line input argument string (--spam) contains the string
"ham" or "spam" Mode is "SPAM" Calling (as user vmail)
'/usr/lib/dovecot/deliver -d "sa-train...@example.com" -m
"Training.SPAM" -p "/tmp/sendmail-msg-7662.txt"' Exit status was
134
Check out your local /usr/include/sysexits.h, if the exit code is
defined there. It's not in mine.
Exit code 134 is not defined in /usr/include/sysexits.h on my system.
Yet, I'm able to copy the above command and execute it manually,
via the command-line, and it works (and by "works", I mean to
say that the behavior is correct and exactly as expected; I
receive the "Spam" email at the designated mailbox). Here's how
I'm calling it when it works perfectly well (as "root"):
# su -c '/usr/lib/dovecot/deliver -d "sa-train...@example.com" -m
"Training.HAM" -p "/tmp/sendmail-msg-7460.txt"' vmail
Any idea what status 134 might be or how to work around it? It
looks to be some kind of "temporary failure exception", but that
is less than informative in this context.
# 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-32-generic
x86_64 Ubuntu 14.04.1 LTS plugin { antispam_backend = pipe
antispam_debug_target = syslog antispam_pipe_program = /bin/bash
antispam_pipe_program_args = /usr/local/bin/sa-learn-pipe.sh
antispam_pipe_program_notspam_arg = --ham
antispam_pipe_program_spam_arg = --spam antispam_pipe_tmpdir =
/tmp antispam_spam_pattern_ignorecase = SPAM;JUNK
antispam_trash_pattern_ignorecase = trash;Deleted *
antispam_verbose_debug = 1 }
-- Steffen Kaiser
Is it possible that this is some kind of apparmor restriction? I ask
because apparmor is indeed installed on this machine.
Well, of course apparmor can interject with any operation. You ought to
see that in the apparmor logs. I do not have no experience with it though.
If you examine the script source (cited above), you will see that I've
had to use "the hammer that is strace" to debug issues with Dovecot +
Antispam before... maybe it's worth trying in this case.
Still struggling with this. strace doesn't reveal anything useful, either.
In short, dovecot deliver is returning with exit code 134 when I try to
execute the following command in the context of my dovecot-antispam pipe
script:
/usr/lib/dovecot/deliver -d "sa-train...@example.com" -m
"Training.HAM" -p "/tmp/sendmail-msg-7460.txt"' vmail
Yet, if I execute the same exact command after su-ing to the vmail user,
it works:
# su vmail
$ whoami
vmail
$ /usr/lib/dovecot/deliver -d "sa-train...@example.com" -m
"Training.HAM" -p "/tmp/sendmail-msg-7460.txt"
I have ensured that the pipe script is, in fact, being executed as the
vmail user, by inserting the following into my debug output:
CURRENT_USER=$(whoami)
echo "$CURRENT_USER"
This outputs "vmail".
I have this working with exactly the same setup (near as I can tell) on
a machine with Dovevot 2.0.19 (via Ubuntu 12.04 LTS). This problem
machine is running 2.2.9 (via Ubuntu 14.04 LTS). My "doveconf -n" output
is at the bottom of my original post.
I would love to figure this out; it will be the capstone on an otherwise
perfect build. :)
Thanks for any ideas!
one idea: http://www.tldp.org/LDP/abs/html/exitcodes.html
exit code 134 would be in bash's meaning (if this website is correct all)
some program died off signal 6. This would be Abort in Linux.
prepend your script with
exec >> /tmp/trace 2>&1
set -vx
that will dump anything visible into /tmp/trace
- --
Steffen Kaiser
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