dovecot - Jun 2006 - Problem with default_mail_env in beta9

Hallo,

I am playing arround with dovecot
I hat version 1.0.beta7 running fine. After installing beta9 there is a problem
with default_mail_env setting.

I have all users in ldap.
there is an attribute "mailMessageStore" which contains a relative
path to users maildir
mailMessageStore: sca/

my mailer completes this relative pathinformation to /var/mail/sca/

therefor I setup default_mail_env to "maildir:/var/mail/%h"
dovecot-ldap.conf includes "user_attrs =
mailMessageStore=home,uidNumber=uid,gidNumber=gid"

all fine in beta7

in beta9
I got this in my log:
dovecot: Jun 16 14:50:22 Info: Dovecot v1.0.beta9 starting up
dovecot: Jun 16 14:50:30 Info: auth(default): client in: AUTH   1       PLAIN  
service=POP3    lip=127.0.0.1        rip=127.0.0.1 resp=random
dovecot: Jun 16 14:50:30 Info: auth(default): ldap(sca,127.0.0.1): bind search:
base=o=datev,c=de filter=(uid=sca)
dovecot: Jun 16 14:50:30 Info: auth(default): client out: OK    1       user=sca
dovecot: Jun 16 14:50:30 Info: auth(default): master in: REQUEST        1      
30400   1
dovecot: Jun 16 14:50:30 Info: auth(default): ldap(sca,127.0.0.1):
base=o=datev,c=de scope=subtree filter=(uid=sca)
fields=mailMessageStore,uidNumber,gidNumber
dovecot: Jun 16 14:50:30 Info: auth(default): master out: USER  1       t02985a
home=sca/   uid=30014       gid=30007
dovecot: Jun 16 14:50:30 Info: pop3-login: Login: user=<sca>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1
dovecot: Jun 16 14:50:30 Error: POP3(sca): dovecot: Jun 16 14:50:30 Fatal:
chdir(sca/) failed with uid 30014: Permission denied
dovecot: Jun 16 14:50:30 Error: child 30407 (pop3) returned error 89

If I change user_attrs to "user_attrs =
mailMessageStore=FOO,uidNumber=uid,gidNumber=gid"
I got
dovecot: Jun 16 14:54:36 Info: Dovecot v1.0.beta9 starting up
dovecot: Jun 16 14:54:41 Info: auth(default): client in: AUTH   1       PLAIN  
service=POP3    lip=127.0.0.1        rip=127.0.0.1 resp=random
dovecot: Jun 16 14:54:41 Info: auth(default): ldap(sca,127.0.0.1): bind search:
base=o=datev,c=de filter=(uid=sca)
dovecot: Jun 16 14:54:41 Info: auth(default): client out: OK    1       user=sca
dovecot: Jun 16 14:54:41 Info: auth(default): master in: REQUEST        1      
30475   1
dovecot: Jun 16 14:54:41 Info: auth(default): ldap(sca,127.0.0.1):
base=o=datev,c=de scope=subtree filter=(uid=sca)
fields=mailmessagestore,uidNumber,gidNumber
dovecot: Jun 16 14:54:41 Info: auth(default): master out: USER  1       sca
uid=30014       gid=30007
dovecot: Jun 16 14:54:41 Info: pop3-login: Login: user=<sca>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1
dovecot: Jun 16 14:54:41 Info: POP3(sca): Effective uid=30014, gid=30007
dovecot: Jun 16 14:54:41 Info: POP3(sca): maildir:
data=/var/mail//HOME_DIRECTORY_USED_BUT_NOT_GIVEN_BY_USERDB
dovecot: Jun 16 14:54:41 Info: POP3(sca): maildir:
root=/var/mail//HOME_DIRECTORY_USED_BUT_NOT_GIVEN_BY_USERDB,
index=/var/mail//HOME_DIRECTORY_USED_BUT_NOT_GIVEN_BY_USERDB, control=, inbox
this inicates to me, that
 1. homedirvariable is unset
    OK, because I assigned mailMessageStore to local FOO
 2. default_mail_env is correct evaluated to maildir:/var/mail/%h


Question:
Why is default_mail_env not correct evalueted to maildir:/var/mail/sca/ if sca/
is set as homedir ?

As mentions above, this worked fine with beta7 ...

What do I wrong ???
My I provide more Informations ?

-- 
Andreas Schulze

DATEV eG, Paumgartner Strasse 6-14, D - 90429 N?rnberg
Abt. Internet- und Securitydienste
 Telefon : +49 911 276 2648
 Telefax : +49 911 276 7892
   Mobil : +49 172 8122883
  E-Mail : andreas.schulze_at_datev.de
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On Fri, 2006-06-16 at 15:00 +0200, Andreas Schulze
wrote:
> I have all users in ldap.
> there is an attribute "mailMessageStore" which contains a
relative path to users maildir
> mailMessageStore: sca/
> 
> my mailer completes this relative pathinformation to /var/mail/sca/
> 
> therefor I setup default_mail_env to "maildir:/var/mail/%h"
> dovecot-ldap.conf includes "user_attrs =
mailMessageStore=home,uidNumber=uid,gidNumber=gid"
..
> dovecot: Jun 16 14:50:30 Error: POP3(sca): dovecot: Jun 16 14:50:30 Fatal:
chdir(sca/) failed with uid 30014: Permission denied
Dovecot tries to chdir() to the home directory before starting up the
pop3 process, and since the default startup directory
is /var/run/dovecot, it tried to chdir() under it. I've no idea why it
happened to be working for you with beta7. Maybe I added some extra
check which broke it for you.

One easy way to fix this would be to just comment out the chdir() call
from src/master/mail-process.c. The proper way would be to make the home
directory be an absolute path.

Perhaps the LDAP code needs a bit more changing so that you can use the
values received from LDAP in a template for Dovecot's settings.
Something like:

user_attrs = mailMessageStore=home=/var/mail/%1,uidNumber=uid,gidNumber=gid

BTW. This would break that other guy's quota configuration who I just
recently replied to that I wouldn't be breaking it.. :)

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