RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Description of problem:
during merge of file /etc/dhcp/dhclient.conf by NetworkManager conditional lines do not propagate into /var/lib/NetworkManager/dhclient-<device>.conf file any longer. It seems like regression as I can confirm it's working with NetworkManager-1.12.0-10.el7_6.


Version-Release number of selected component (if applicable):
NetworkManager-1.18.0-5.el7.x86_64 onwards 

How reproducible:
Put conditional statements into /etc/dhcp/dhclient.conf and make sure NetworkManager runs dhclient.

Steps to Reproduce:
1. Put conditional setting into /etc/dhcp/dhclient.conf 
For simplicity take example from man dhcp-eval

if not option domain-name = "example.org" {
         prepend domain-name-servers 127.0.0.1;
       }

2. Make sure dhclient will run & reboot

Actual results:
/var/lib/NetworkManager/dhclient-<device>.conf doesn't contain conditional statements from /etc/dhcp/dhclient.conf

Expected results:
/var/lib/NetworkManager/dhclient-<device>.conf contains all the configuration statements from /etc/dhcp/dhclient.conf

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/301

test added:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager-ci/-/merge_requests/571

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 (Moderate: NetworkManager security and bug fix update), and where to find the updated
files, follow the link below.

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

https://access.redhat.com/errata/RHSA-2020:4003