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Description of problem:
After upgrading a RHEL 7 system to RHEL8 the semanage port configuration is not fully preserved.
Customer has configured type `http_cache_port_t` to port 8000.
Leap fails to set this configuration because it conflicts with the existing configuration for port 8000 as type `soundd_port_t`.
Version-Release number of selected component (if applicable):
policycoreutils-python-utils-2.9-24.el8.noarch
leapp-0.15.1-1.el7_9.noarch
How reproducible:
always
Steps to Reproduce:
1. spin up a rhel7 image (I used kcli from the rhel7 image from the portal downloads)
~~~
# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.9 (Maipo)
~~~
2. check default SELinux port for http_cache and port 8000:
~~~
# semanage port -l |grep http_cache
http_cache_port_t tcp 8080, 8118, 8123, 10001-10010
http_cache_port_t udp 3130
# semanage port -l |grep 8000
soundd_port_t tcp 8000, 9433, 16001
~~~
3. Add/modify port 8000
~~~
# semanage port -a -t http_cache_port_t -p tcp 8000
ValueError: Port tcp/8000 already defined
# semanage port -l |grep http_cache
http_cache_port_t tcp 8080, 8118, 8123, 10001-10010
http_cache_port_t udp 3130
# semanage port -l |grep 8000
soundd_port_t tcp 8000, 9433, 16001
# semanage port -m -t http_cache_port_t -p tcp 8000
# semanage port -l |grep http_cache
http_cache_port_t tcp 8000, 8080, 8118, 8123, 10001-10010
http_cache_port_t udp 3130
# semanage port -l |grep 8000
http_cache_port_t tcp 8000, 8080, 8118, 8123, 10001-10010
soundd_port_t tcp 8000, 9433, 16001
~~~
4. reboot and verify
~~~
# semanage port -l |grep http_cache
http_cache_port_t tcp 8000, 8080, 8118, 8123, 10001-10010
http_cache_port_t udp 3130
# semanage port -l |grep 8000
http_cache_port_t tcp 8000, 8080, 8118, 8123, 10001-10010
soundd_port_t tcp 8000, 9433, 16001
~~~
5. perform the leapp upgrade
~~~
# subscription-manager repos --enable rhel-7-server-rpms
# subscription-manager repos --enable rhel-7-server-extras-rpms
# subscription-manager release --unset
# yum versionlock clear
# yum update
# reboot
# yum install leapp-upgrade
# leapp answer --section remove_pam_pkcs11_module_check.confirm=True
# rmmod floppy
# rmmod pata_acpi
# leapp upgrade --debug
# reboot
~~~
Actual results:
The selinux port config is not retained:
~~~
# semanage port -l |grep 8000
soundd_port_t tcp 8000, 9433, 16001
# semanage port -l |grep http_cache
http_cache_port_t tcp 8080, 8118, 8123, 10001-10010
http_cache_port_t udp 3130
~~~
Expected results:
SELinux configuration to be retained after Leapp upgrade
Additional info:
The log `/var/log/leapp/leapp-upgrade.log` shows that Leapp attempts to set the type but fails because a definition already exists for port 8000:
~~~
2023-08-10 10:26:53.522 INFO PID: 1268 leapp.workflow.Applications.selinuxapplycustom: Importing the following SELinux customizations collected by "semanage export":
2023-08-10 10:26:55.156 WARNING PID: 1268 leapp.workflow.Applications.selinuxapplycustom: Error applying "semanage port -a -t http_cache_port_t -r 's0' -p tcp 8000": ValueError: Port tcp/8000 already defined
~~~
This is identical to the error seen in step 3. above.
The resulting configuration may not be valid for SELinux and may need to be adressed in policycore-utils but Leapp needs to handle or at least warn about this issue.
Comment 5RHEL Program Management
2023-09-12 11:55:41 UTC
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.
Comment 6RHEL Program Management
2023-09-12 12:24:14 UTC
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.
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