procmail_selinux(8) - Linux man page

Name

procmail_selinux - Security Enhanced Linux Policy for the procmail processes

Description

Security-Enhanced Linux secures the procmail processes via flexible mandatory access control.

The procmail processes execute with the procmail_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep procmail_t

Entrypoints

The procmail_t SELinux type can be entered via the "procmail_exec_t" file type. The default entrypoint paths for the procmail_t domain are the following:"

/usr/bin/procmail

Process Types

SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to ps

Policy governs the access confined processes have to files. SELinux procmail policy is very flexible allowing users to setup their procmail processes in as secure a method as possible.

The following process types are defined for procmail:

procmail_t

Note: semanage permissive -a procmail_t

can be used to make the process type procmail_t permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.

File Contexts

SELinux requires files to have an extended attribute to define the file type.

You can see the context of a file using the -Z option to ls

Policy governs the access confined processes have to these files. SELinux procmail policy is very flexible allowing users to setup their procmail processes in as secure a method as possible.

The following file types are defined for procmail:

procmail_exec_t

- Set files with the procmail_exec_t type, if you want to transition an executable to the procmail_t domain.

procmail_home_t

- Set files with the procmail_home_t type, if you want to store procmail files in the users home directory.

procmail_log_t

- Set files with the procmail_log_t type, if you want to treat the data as procmail log data, usually stored under the /var/log directory.

procmail_tmp_t

- Set files with the procmail_tmp_t type, if you want to store procmail temporary files in the /tmp directories.

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.

Managed Files

The SELinux process type procmail_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.

anon_inodefs_t

initrc_tmp_t

mail_home_rw_t

/root/Maildir(/.*)?

/home/[^/]*/Maildir(/.*)?

mail_spool_t

/var/mail(/.*)?

/var/spool/imap(/.*)?

/var/spool/mail(/.*)?

mnt_t

/mnt(/[^/]*)

/mnt(/[^/]*)?

/rhev(/[^/]*)?

/media(/[^/]*)

/media(/[^/]*)?

/etc/rhgb(/.*)?

/media/.hal-.*

/net

/afs

/misc

/rhev

nfs_t
procmail_tmp_t
tmp_t

/tmp

/usr/tmp

/var/tmp

/var/tmp/vi.recover

user_home_t

/home/[^/]*/.+

Commands

semanage fcontext can also be used to manipulate default file context mappings.

semanage permissive can also be used to manipulate whether or not a process type is permissive.

semanage module can also be used to enable/disable/install/remove policy modules.

system-config-selinux is a GUI tool available to customize SELinux policy settings.

Author

This manual page was auto-generated using sepolicy manpage by mgrepl.