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Created attachment 865188 [details]
DHCP Paranoia Patch

Description of problem:

On ever start, dhcpd reverts ownership of /var/lib/dhcpd/dhcpd.leases to root:root, where it should be dhcpd:dhcpd

This was a bug in Fedora 16, bug 837474
And Fedora 17, bug 866714

Version-Release number of selected component (if applicable):

dhcp-4.1.1-39.P1.el6

How reproducible:

Always

Steps to Reproduce:
1. Restart dhcpd service
2. Check ownership of /var/lib/dhcpd/dhcpd.leases

Actual results:
root:root

Expected results:
dhcpd:dhcpd

Additional info:

I've attached a patch based on the Fedora version.
http://pkgs.fedoraproject.org/cgit/dhcp.git/tree/dhcp-paranoia.patch

The patch includes all the code fixes, but doesn't include the man page updates.

After building and installing, it seemed to test fine except for an AVC denial preventing chown operation. The following rule fixed this issue:

allow dhcpd_t self:capability chown;

cvs-commit http://bulk-mail.corp.redhat.com/archives/cvs-commits-list/2014-April/msg01424.html

The patch fixed this issue for us.

After restart:

# ls -lZ /var/lib/dhcpd/dhcpd.leases 
-rw-r--r--. dhcpd dhcpd unconfined_u:object_r:dhcpd_state_t:s0 /var/lib/dhcpd/dhcpd.leases

Tested with dhcp-4.1.1-43.P1.el6.x86_64

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2014-1406.html