Stephen Smalley wrote:
On Fri, 2008-08-15 at 10:42 -0400, Vikram Ambrose wrote:
I have a problem in which file_contexts gets to 11mb (152kb unique)
because of duplicates.
Using selinux-svn2950 and refpolicy-svn2780 I built the standard policy
distro=redhat
unknown perms=deny
no direct admin init
Now using the .pp files that got installed into /usr/share/selinux/standard
I attempted to create a 2nd policy by hand using semodule.
# export NAME=vikram
# mkdir -v -p \
/etc/selinux/$NAME/modules/active \
/etc/selinux/$NAME/contexts/files \
/etc/selinux/$NAME/policy
# cd /usr/share/selinux/standard
# semodule -v -n -s $NAME -b base.pp $(for i in *.pp ; do if [ "$i" !=
"base.pp" ] ; then echo -n "-i $i "; fi; done)
This command appears to run for eternity. But after investigation, it
seems setfiles is getting stuck up reading file_contexts. And is
relabeling the file system again and again because of the duplicate
definitions.
Shorting out setfiles lets the command complete in 30mins. ie
Transaction return 0. However because the file_contexts is 11mb of
duplicates. It cannot be used. Doing a:
# sort /etc/selinux/$NAME/contexts/files/file_contexts | uniq > clean
# mv clean /etc/selinux/$NAME/contexts/files/file_contexts
Produces a 152kb file.
Note: /etc/selinux/standard/context/files/file_contexts is 156kb
Relabeling the file system now with the new 152kb file. Causes
/usr/lib64 to get usr_t which causes massive denial at boot up. And
eventually haults login.
What in the world is going on? Where would I begin to debug these
problems: 1) Duplicates in file_contexts and 2) Missing contexts
Is there a reason you aren't doing this the usual way, e.g. by doing a
make load from the refpolicy directory rather than manually trying to
install the modules?
Why not?
And why are you changing the NAME= part way
through the install, from standard to vikram?
I think you misunderstood, the name is not changing. standard is what
was produced by refpolicy, It is also the running policy when the steps
I mentioned are run. Please read my email again.
I tried reproducing your steps above with the same revisions of the
selinux toolchain and refpolicy on a x86_64 box with f10/rawhide as the
base distribution, but it all ran fine for me and my file_contexts is a
reasonable size (146956 bytes).
To be precise, I did:
svn co -r2950 http://selinux.svn.sourceforge.net/svnroot/selinux/trunk selinux
cd selinux
make LIBDIR=/usr/lib64 SHLIBDIR=/lib64 install install-pywrap relabel
cd ..
svn co -r2780 http://oss.tresys.com/repos/refpolicy/trunk refpolicy
cd refpolicy
make conf
make NAME=standard DISTRO=redhat MONOLITHIC=n install
cd /usr/share/selinux/standard
and then I ran the commands you showed above. It completed without
errors and produced a valid, reasonable size file_contexts file.
Yes, this seems to be the consensus. For some reason my build tools dont
seem to be doing their job quite right.
Oh and on another note, did you get a chance to see the new build system
that I have proposed and mailed to the list?
Vikram
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