Vit,
I can do it with:
setfiles -v /etc/selinux/mcs/contexts/files/file_contexts /home/root/yolo
Relabeled /home/root/yolo from root:object_r:unlabeled_t:s0 to root:object_r:user_home_t:s0
setfiles -v /etc/selinux/mcs/contexts/files/file_contexts /home/root/yolo
Relabeled /home/root/yolo from root:object_r:unlabeled_t:s0 to root:object_r:user_home_t:s0
when I use "restorecon -R -v /home/root/yolo"
Relabeled /sysroot/home/root/yolo from root:object_r:user_home_t:s0 to root:object_r:root_home_t:s0
Relabeled /sysroot/home/root/yolo from root:object_r:user_home_t:s0 to root:object_r:root_home_t:s0
setfiles relabels yolo back to user_home_t
and
restorecon relabels yolo back to root_home_t
Should setfiles or restorecon be used for me?
---henry
On Mon, Jun 12, 2023 at 11:59 PM Vit Mojzis <vmojzis@xxxxxxxxxx> wrote:
On 6/12/23 17:20, Henry Zhang wrote:
Vit,
Thanks for the links.
I can use restorecon to recover to default value if file content is changed by the chcon command.But setfiles does nothing when the file is changed by chcon.
May I change something and let setfiles recover it?
Sure. But you need to specify the full path (unlike when using restorecon, which uses "realpath" to get the full path on its own).
$ touch yolo
$ ls -lZ
total 0
-rw-r--r--. 1 root root unconfined_u:object_r:user_home_t:s0 0 Jun 12 13:05 yolo
# chcon -t unlabeled_t yolo
$ ls -lZ
total 0
-rw-r--r--. 1 root root unconfined_u:object_r:unlabeled_t:s0 0 Jun 12 13:05 yolo
# setfiles -v /etc/selinux/targeted/contexts/files/file_contexts /home/testuser/yolo
Relabeled /home/testuser/yolo from unconfined_u:object_r:unlabeled_t:s0 to unconfined_u:object_r:user_home_t:s0
Vit
---henry
On Mon, Jun 12, 2023 at 6:15 AM Vit Mojzis <vmojzis@xxxxxxxxxx> wrote:
Hi,
let me walk you through the steps to find this info on your own.
# dnf provides setfiles
policycoreutils-3.3-4.fc36.x86_64 : SELinux policy core utilities
# dnf provides restorecon
policycoreutils-3.3-4.fc36.x86_64 : SELinux policy core utilities
So both utilities are shipped as part of policycoreutils package.
The package is build from the following repository:
https://src.fedoraproject.org/rpms/policycoreutils
The spec file
(https://src.fedoraproject.org/rpms/policycoreutils/blob/rawhide/f/policycoreutils.spec#_18)
shows that the source code repository is
https://github.com/SELinuxProject/selinux
$ git clone https://github.com/SELinuxProject/selinux ; cd selinux
$ find -name setfiles.c
./policycoreutils/setfiles/setfiles.c
This is actually the source file for both tools. Their behavior changes
based on the executable name
https://github.com/SELinuxProject/selinux/blob/main/policycoreutils/setfiles/setfiles.c#L178
Hope this helps,
Vit
On 6/8/23 20:01, Henry Zhang wrote:
> Hi folks,
>
> I want to know the difference between setfiles and restorecon.
> Where can I get source codes of setfiles and restorecon?
>
> ---henry
>
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