[exim-dev] [Bug 2751] New: include_directory option nonworki…

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Autor: admin
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A: exim-dev
Assumptes nous: [exim-dev] [Bug 2751] include_directory option nonworking, never allows access
Assumpte: [exim-dev] [Bug 2751] New: include_directory option nonworking, never allows access
https://bugs.exim.org/show_bug.cgi?id=2751

            Bug ID: 2751
           Summary: include_directory option nonworking, never allows
                    access
           Product: Exim
           Version: 4.94
          Hardware: x86
               URL: https://bugs.debian.org/988301
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Routing
          Assignee: unallocated@???
          Reporter: eximusers@???
                CC: exim-dev@???


Hello,

once I add

include_directory = /etc/exim4

to the system_aliases redirect router
this setting in /etc/aliases

priprema: :include:/etc/exim4/dynaliases/priprema

(with /etc/exim4/dynaliases/priprema simply containing "somewhere@???")
stopped working.

Without include_directory:
root@argenau:~# /usr/sbin/exim4 -bt priprema
R: system_aliases for priprema@???
R: smarthost for somewhere@???
[...]

with include_directory:
root@argenau:~# /usr/sbin/exim4 -bt priprema
R: system_aliases for priprema@???
priprema@??? cannot be resolved at this time: error in redirect
data: failed to open /etc/exim4/dynaliases/priprema (component of included
file); could be symbolic link

There is no permission issue, it is all regular world-readable files and
directories.

This was reported by Josip Rodin in the Debian BTS on upgrading from 4.84 to
4.89. I can reproduce with 4.92.2.
---------------------------
Version: 4.89-2+deb9u8

Hi,

After an upgrade to stretch, and likewise buster, the :include:
functionality of the redirect router seems to be broken.

I have include_directory set to /etc/exim4, and a subdirectory with
files containing alias content, an an aliases file containing e.g.:

priprema: :include:/etc/exim4/dynaliases/priprema

This worked perfectly up to jessie, but after the upgrade, deliveries
started choking with messages like:

R=aliases defer (-17): error in redirect data: failed to open
/etc/exim4/dynaliases/priprema (component of included file); could
be symbolic link

strace shows:

openat(AT_FDCWD, "/etc/exim4/dynaliases", O_RDONLY|O_LARGEFILE) = 7
openat(7, "/priprema", O_RDONLY|O_LARGEFILE|O_NOFOLLOW) = -1 ENOENT (No such
+file or directory)

Obviously it's supposed to continue to find the file in that directory,
because the file hasn't been touched...

Am I missing something here?

A diff between 4.84 and 4.89 sources shows that this code was changed
inbetween, with a block of new code using EXIM_HAVE_OPENAT replacing
the old logic...?
---------------------------

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