Alan M. Evans wrote:
On Tue, 2006-05-30 at 10:48, Paul Howarth wrote:
Alan M. Evans wrote:
On Tue, 2006-05-30 at 09:10, Paul Howarth wrote:
[ ... ]
If that's all you have, it shouldn't be difficult to fix.
Set yourself up for making local policy modules:
# yum install checkpolicy
# cd /root
# mkdir selinux.local
# cd selinux.local
# chcon -R -t usr_t .
# ln -s /usr/share/selinux/devel/Makefile .
Make a local policy module for this issue, in this directory:
1. Create a file postgresql.te with this content:
module postgresql 0.1;
require {
class dir search;
class lnk_file read;
type home_root_t;
type postgresql_t;
type var_lib_t;
};
# Allow postgresql to read /var/lib/pgsql -> /home/pgsql symlink
# if present
allow postgresql_t var_lib_t:lnk_file read;
# Allow postgresql to search directory /home
allow postgresql_t home_root_t:dir search;
2. Create a file postgresql.fc with this content:
/home/pgsql -d
gen_context(system_u:object_r:var_lib_t,s0)
/home/pgsql/data(/.*)?
gen_context(system_u:object_r:postgresql_db_t,s0)
/home/pgsql/pgstartup.log --
gen_context(system_u:object_r:postgresql_log_t,s0)
(that's three long lines)
3. Create an empty postgresql.if file:
# touch postgresql.if
4. Build the policy module
# make
Install your new policy module:
# semodule -i postgresql.pp
Fix file contexts:
# restorecon -Rv /home/pgsql
Hopefully that should get you going in enforcing mode.
Well, that restorecon set all the contexts back to user_home_t. Ugh.
Ugh indeed. My fix is incomplete. Can you post the output of:
# semanage fcontext -l | grep pgsql
Sure:
# semanage fcontext -l | grep pgsql
/usr/lib/pgsql/test/regress/pg_regress regular file
system_u:object_r:postgresql_exec_t:s0
/var/lib/pgsql/data(/.*)? all files
system_u:object_r:postgresql_db_t:s0
/home/pgsql/pgstartup.log regular file
system_u:object_r:postgresql_log_t:s0
/var/lib/pgsql/pgstartup.log all files
system_u:object_r:postgresql_log_t:s0
/usr/share/jonas/pgsql(/.*)? all files
system_u:object_r:postgresql_db_t:s0
/home/pgsql directory
system_u:object_r:var_lib_t:s0
/home/pgsql/data(/.*)? all files
system_u:object_r:postgresql_db_t:s0
/usr/lib/pgsql/test/regress/.*\.sh regular file
system_u:object_r:bin_t:s0
/usr/lib/pgsql/test/regres(/.*)? all files
system_u:object_r:postgresql_db_t:s0
I trust that /home/pgsql is not some user's home directory?
That is correct.
It appears that there is no easy fix for this problem, other than moving
the data somewhere other than under /home:
http://www.redhat.com/archives/fedora-selinux-list/2006-May/msg00253.html
Paul.
