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Bug 856098 - service slapd start causes AVC message
Summary: service slapd start causes AVC message
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: openldap
Version: 7.0
Hardware: All
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Jan Synacek
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks: 859019
TreeView+ depends on / blocked
 
Reported: 2012-09-11 08:15 UTC by David Spurek
Modified: 2015-03-02 05:27 UTC (History)
4 users (show)

Fixed In Version: openldap-2.4.33-1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 859019 (view as bug list)
Environment:
Last Closed: 2014-06-13 10:52:01 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description David Spurek 2012-09-11 08:15:26 UTC 
Description of problem:
service slapd start cause avc message, slaptest fail to write. /usr/lib/systemd/system/slapd.service have in config ExecStartPre=/usr/libexec/openldap/check-config.sh which run slaptest

type=AVC msg=audit(1347360019.846:833): avc:  denied  { write } for  pid=12425 comm="slaptest" path="/tmp/tmp.t4gJT7yp7p" dev="dm-2" ino=654207 scontext=system_u:system_r:slapd_t:s0 tcontext=system_u:object_r:initrc_tmp_t:s0 tclass=file

Version-Release number of selected component (if applicable):
selinux-policy-3.11.1-11.el7
openldap-2.4.32-2.el7

How reproducible:
always
Comment 1 Milos Malik 2012-09-11 08:33:30 UTC 
Following AVCs appeared in enforcing mode:
----
time->Tue Sep 11 10:27:23 2012
type=PATH msg=audit(1347352043.811:10189): item=1 name=(null) inode=3670626 dev=08:04 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:ld_so_t:s0
type=PATH msg=audit(1347352043.811:10189): item=0 name="/usr/sbin/slaptest" inode=3678745 dev=08:04 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:slapd_exec_t:s0
type=CWD msg=audit(1347352043.811:10189):  cwd="/"
type=EXECVE msg=audit(1347352043.811:10189): argc=2 a0="/usr/sbin/slaptest" a1="-u"
type=SYSCALL msg=audit(1347352043.811:10189): arch=c000003e syscall=59 success=yes exit=0 a0=1fa9e50 a1=1fa9420 a2=1fa8f90 a3=18 items=2 ppid=31277 pid=31278 auid=4294967295 uid=55 gid=55 euid=55 suid=55 fsuid=55 egid=55 sgid=55 fsgid=55 tty=(none) ses=4294967295 comm="slaptest" exe="/usr/sbin/slapd" subj=system_u:system_r:slapd_t:s0 key=(null)
type=AVC msg=audit(1347352043.811:10189): avc:  denied  { write } for  pid=31278 comm="slaptest" path="/tmp/tmp.ERiA2LfAdC" dev="tmpfs" ino=320241 scontext=system_u:system_r:slapd_t:s0 tcontext=system_u:object_r:initrc_tmp_t:s0 tclass=file
type=AVC msg=audit(1347352043.811:10189): avc:  denied  { write } for  pid=31278 comm="slaptest" path="/tmp/tmp.ERiA2LfAdC" dev="tmpfs" ino=320241 scontext=system_u:system_r:slapd_t:s0 tcontext=system_u:object_r:initrc_tmp_t:s0 tclass=file
----
Comment 2 Daniel Walsh 2012-09-11 11:54:53 UTC 
Does slaptest do something like

command < _EOF
line1
line2
_EOF

BTW is this a real test or just some testing code you guys are doing?
Comment 3 Milos Malik 2012-09-11 12:10:49 UTC 
slaptest is a part of openldap-servers package and it's executed from slapd.service file.
Comment 4 Milos Malik 2012-09-11 12:16:03 UTC 
# rpm -ql openldap-servers | grep slaptest
/usr/sbin/slaptest
/usr/share/man/man8/slaptest.8.gz
# cat /usr/lib/systemd/system/slapd.service 
[Unit]
Description=OpenLDAP Server Daemon
After=syslog.target

[Service]
Type=forking
PIDFile=/var/run/openldap/slapd.pid
Environment="SLAPD_URLS=ldap:/// ldapi:///" "SLAPD_OPTIONS="
EnvironmentFile=/etc/sysconfig/slapd
ExecStartPre=/usr/libexec/openldap/check-config.sh
ExecStart=/usr/sbin/slapd -u ldap -h ${SLAPD_URLS} $SLAPD_OPTIONS

[Install]
WantedBy=multi-user.target
# head /usr/libexec/openldap/check-config.sh
#!/bin/sh
# Author: Jan Vcelak <jvcelak>

. /usr/libexec/openldap/functions

function check_config_syntax()
{
	retcode=0
	tmp_slaptest=`mktemp`
	run_as_ldap "/usr/sbin/slaptest $SLAPD_GLOBAL_OPTIONS -u" &>$tmp_slaptest
# ls -l /usr/sbin/slaptest 
lrwxrwxrwx. 1 root root 5 Aug 22 10:36 /usr/sbin/slaptest -> slapd
#
Comment 5 Daniel Walsh 2012-09-18 15:03:45 UTC 
How about
	
	run_as_ldap "/usr/sbin/slaptest $SLAPD_GLOBAL_OPTIONS -u" &> /var/run/openldap/slaptest.log
Comment 6 Daniel Walsh 2012-09-18 15:04:06 UTC 
Services should not be using /tmp.
Comment 8 Jan Vcelak 2012-10-11 14:32:34 UTC 
Resolved in openldap-2.4.33-1.el7
Comment 11 Ludek Smid 2014-06-13 10:52:01 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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