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Bug 177181 - dev-vcs/cvsd-1.0.7 doesn't work on LDAP systems
Summary: dev-vcs/cvsd-1.0.7 doesn't work on LDAP systems
Status: RESOLVED TEST-REQUEST
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Server (show other bugs)
Hardware: x86 Linux
: High normal
Assignee: No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it
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Reported: 2007-05-05 14:05 UTC by Christian Schoenebeck
Modified: 2017-11-09 13:50 UTC (History)
1 user (show)

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Runtime testing required: ---


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Description Christian Schoenebeck 2007-05-05 14:05:36 UTC
We are using cvsd on LDAP enabled systems without any problems for years. But it seems as some kind of bug was introduced, probably when the implementation of the interaction between cvs and cvsd changed (a year ago?). Now with recent versions of cvsd&cvs, whenever we enable LDAP support in /etc/nsswitch.conf:

passwd:      files ldap
shadow:      files ldap
group:       files ldap

All cvs operations via cvsd fail. For example:

cuse@trinity:~/footest$ cvs -d:pserver:anonymous@cvs.linuxsampler.org:/var/cvs/linuxsampler co libgig
cvs [checkout aborted]: received broken pipe signal
cvs [checkout aborted]: end of file from server (consult above messages if any)
cuse@trinity:~/footest$

With debug verbosity enabled, the log file of cvsd shows this:

cvsd: version 1.0.7 starting
cvsd: debug: binding :: 2401 family=10 socktype=1 protocol=6
cvsd: listening on :: 2401
cvsd: debug: binding 0.0.0.0 2401 family=2 socktype=1 protocol=6
cvsd: debug: bind() failed (ignored): Address already in use
cvsd: debug: nice(1) done
cvsd: debug: setgroups(0,NULL) done
cvsd: debug: setgid(441) done
cvsd: debug: setuid(101) done
cvsd: debug: cvs command to execute: '/usr/bin/cvs -f --allow-root=/var/cvs/linuxsampler pserver'
cvsd: accepting connections
cvsd: connection from x.x.x.x 41819
cvsd: debug: limit coredumpsize to 0(soft) and 0(hard)
cvsd: debug: fork() succeeded (child pid=8009)
cvsd: debug: select() failed (ignored): Interrupted system call
cvsd: cvs command exited with exit-status 1

However, as soon as I disable LDAP support in /etc/nsswitch.conf with:

passwd:      files
shadow:      files
group:       files

all cvs operations via cvsd work smoothly again.

Here are the use flags we are using for cvs and cvsd:
dev-util/cvs-1.12.12-r4  USE="crypt nls pam server -doc -emacs -kerberos"
dev-util/cvsd-1.0.7  USE="tcpd"

I recompiled cvs without the use flags "crypt", "nls" and of course "pam", but it didn't help, I got the same error again.

Btw, the CVS repository directories do not use user accounts mapped by LDAP, only regular, local system accounts. Using cvs locally on that box (that is without using pserver) works smoothly without problems.

Our LDAP configuration hasn't changed in years and works flawlessly on our servers. This LDAP-cvsd problem occured on any of our servers we tried. So I'm pretty sure it's a bug in recent versions of either cvsd or probably cvs, or somewhere in between. ;)

So far we sticked with old versions of cvsd & cvs to avoid this LDAP related problem, but due to security reasons we cannot do this anymore, so we were forced to upgrade cvsd and cvs.

Any pointers or help very much appreciated!

Reproducible: Always
Comment 1 Christian Schoenebeck 2007-05-06 15:55:02 UTC
I think I narrowed the main problem down a bit: our CVSROOT/passwd files look like this:

joe:ENCRYPTEDPASS:cvsd
bob:ENCRYPTEDPASS:cvsd
...

so we force all cvs commands to be executed as "cvsd" user, not as the user as authenticated to cvsd. But again: cvsd is an ordinary local unix account, not a LDAP user account.
Comment 2 Pacho Ramos gentoo-dev 2017-11-09 13:49:54 UTC
please retry with 1.0.17