gpg_agent_selinux(8)

💖 gpg_agent_selinux(8) 💖

Bestie, this is the glow-up manual page for gpg_agent_selinux — Security Enhanced Linux Policy for the gpg_agent processes. Periodt. 💅

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🌸 NAME 🌸

gpg_agent_selinux — Security Enhanced Linux Policy for the gpg_agent processes ✨

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🦋 DESCRIPTION 🦋

Okay so Security-Enhanced Linux secures the gpg_agent processes via flexible mandatory access control. No cap. 🔥

The gpg_agent processes execute with the gpg_agent_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. Vibe check time:

ps -eZ | grep gpg_agent_t

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🎀 ENTRYPOINTS 🎀

The gpg_agent_t SELinux type can be entered via the gpg_agent_exec_t file type. Iconic little doorway, honestly. 🚪✨

The default entrypoint paths for the gpg_agent_t domain are the following:

/usr/bin/gpg-agent

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👑 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 gpg_agent policy is very flexible allowing users to setup their gpg_agent processes in as secure a method as possible. Love that for us. 🫶

The following process types are defined for gpg_agent:

• gpg_agent_t

Note: semanage permissive -a gpg_agent_t can be used to make the process type gpg_agent_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like, it’s still talking, bestie. 😭

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🌈 BOOLEANS 🌈

SELinux policy is customizable based on least access required. gpg_agent policy is extremely flexible and has several booleans that allow you to manipulate the policy and run gpg_agent with the tightest access possible. Tightest access = main character energy. 💅

If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

setsebool -P fips_mode 1

If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

setsebool -P nis_enabled 1

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🧚 MANAGED FILES 🧚

The SELinux process type gpg_agent_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. K thanks 💖

• cifs_t
• ecryptfs_t
  • /home/[^/]+/.Private(/.*)?
  • /home/[^/]+/.ecryptfs(/.*)?
• fusefs_t
  • /run/user/[0-9]+/gvfs
• gnome_home_type
• gpg_agent_tmp_t
  • /home/[^/]+/.gnupg/log-socket
• gpg_agent_tmpfs_t
• gpg_secret_t
  • /root/.gnupg(/.+)?
  • /etc/mail/spamassassin/sa-update-keys(/.*)?
  • /home/[^/]+/.gnupg(/.+)?
• insights_client_var_lib_t
  • /var/lib/insights(/.*)?
• krb5_host_rcache_t
  • /var/tmp/krb5_0.rcache2
  • /var/cache/krb5rcache(/.*)?
  • /var/tmp/nfs_0
  • /var/tmp/DNS_25
  • /var/tmp/host_0
  • /var/tmp/imap_0
  • /var/tmp/HTTP_23
  • /var/tmp/HTTP_48
  • /var/tmp/ldap_55
  • /var/tmp/ldap_487
  • /var/tmp/ldapmap1_0
• nfs_t
• user_home_t
  • /home/[^/]+/.+
• user_tmp_type
  • all user tmp files

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🌸 FILE CONTEXTS 🌸

SELinux requires files to have an extended attribute to define the file type. Slay, labels. 🏷️✨

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 gpg_agent policy is very flexible allowing users to setup their gpg_agent processes in as secure a method as possible. 💜

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the gpg_agent, if you wanted to store files with these types in a different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. Bestie, it’s giving “relabel responsibly.” 🎀

semanage fcontext -a -t gpg_agent_exec_t '/srv/gpg_agent/content(/.*)?'
restorecon -R -v /srv/mygpg_agent_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. Regex girlies rise. 🌈

The following file types are defined for gpg_agent:

• gpg_agent_exec_t — Set files with the gpg_agent_exec_t type, if you want to transition an executable to the gpg_agent_t domain.
• gpg_agent_tmp_t — Set files with the gpg_agent_tmp_t type, if you want to store gpg agent temporary files in the /tmp directories.
• gpg_agent_tmpfs_t — Set files with the gpg_agent_tmpfs_t type, if you want to store gpg agent files on a tmpfs file system.

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. Don’t skip the restorecon step, bestie. 😭💅

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🔥 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.
• semanage boolean can also be used to manipulate the booleans.
• system-config-selinux is a GUI tool available to customize SELinux policy settings.

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🫶 AUTHOR 🫶

This manual page was auto-generated using sepolicy manpage . 💖

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🌟 SEE ALSO 🌟

selinux(8), gpg_agent(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

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💌 cute little sign-off: source/version gpg_agent, date 26-10-06, manual name gpg_agent_selinux(8) — byeee, go read those SEE ALSO pages bestie 🫶💅