pcp_pmproxy_selinux(8)

📦 version 38.1.87, in centos-stream 9

💅 pcp_pmproxy_selinux(8) — the SELinux policy page for pcp_pmproxy, bestie edition

okay so this is the pcp_pmproxy_selinux page, part of the SELinux Policy pcp_pmproxy manual. sit down, grab a matcha, we're learning how SELinux keeps the pcp_pmproxy processes on a leash 🎀

✨ NAME ✨

pcp_pmproxy_selinux — the Security Enhanced Linux Policy for the pcp_pmproxy processes. that's it, that's the whole name. iconic behavior honestly 👑

🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the pcp_pmproxy processes via flexible mandatory access control. yes bestie, mandatory — not the polite suggestion kind 💅

The pcp_pmproxy processes execute with the pcp_pmproxy_t SELinux type. you can check if you have these processes running by executing the ps command with the -Z qualifier. vibe check for your processes, basically 🦋

For example:

ps -eZ | grep pcp_pmproxy_t

🚪 ENTRYPOINTS 🚪

The pcp_pmproxy_t SELinux type can be entered via the pcp_pmproxy_exec_t file type. that's the door, and yes there's a bouncer 🫶

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

/usr/bin/pmproxy, /usr/libexec/pcp/bin/pmproxy

👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. every process gets its own little domain, main character energy for everyone ✨

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

Policy governs the access confined processes have to files. SELinux pcp_pmproxy policy is very flexible, allowing users to setup their pcp_pmproxy processes in as secure a method as possible. flexible and secure, we love a multitasker 💖

The following process types are defined for pcp_pmproxy:

  • pcp_pmproxy_t
Note: semanage permissive -a pcp_pmproxy_t can be used to make the process type pcp_pmproxy_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it stops yelling at you but it's still taking notes 📝

🔘 BOOLEANS 🔘

SELinux policy is customizable based on least access required. pcp_pmproxy policy is extremely flexible and has several booleans that allow you to manipulate the policy and run pcp_pmproxy with the tightest access possible. toggles!! we love toggles 🎀

  • If you want to dontaudit all daemons scheduling requests (setsched, sys_nice), you must turn on the daemons_dontaudit_scheduling boolean. Enabled by default.
setsebool -P daemons_dontaudit_scheduling 1
  • 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

📂 MANAGED FILES 📂

The SELinux process type pcp_pmproxy_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 — SELinux isn't doing all the work, bestie, it's a team effort 🤝

  • cluster_conf_t
/etc/cluster(/.*)?
  • cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
  • cluster_var_run_t
/var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/pcsd-ruby.socket
/var/run/corosync-qnetd(/.*)?
/var/run/corosync-qdevice(/.*)?
/var/run/pcsd.socket
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk
  • 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
  • pcp_log_t
/var/log/pcp(/.*)?
  • pcp_tmp_t — no paths listed, it's mysterious like that 🙈
  • pcp_tmpfs_t — also no paths, keep the mystery 🧚
  • pcp_var_lib_t
/var/lib/pcp(/.*)?
  • pcp_var_run_t
/var/run/pcp(/.*)?
/var/run/pmcd.socket
/var/run/pmlogger.primary.socket
  • root_t
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd

🗂️ FILE CONTEXTS 🗂️

SELinux requires files to have an extended attribute to define the file type. yes, files have ✨labels✨ now 💅

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

The following file types are defined for pcp_pmproxy:

pcp_pmproxy_exec_t

  • Set files with the pcp_pmproxy_exec_t type, if you want to transition an executable to the pcp_pmproxy_t domain.

Paths:

/usr/bin/pmproxy, /usr/libexec/pcp/bin/pmproxy

pcp_pmproxy_initrc_exec_t

  • Set files with the pcp_pmproxy_initrc_exec_t type, if you want to transition an executable to the pcp_pmproxy_initrc_t domain.

Paths:

/etc/rc.d/init.d/pmproxy, /usr/libexec/pcp/lib/pmproxy
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. temporary vs permanent, know the difference bestie 😭

🛠️ 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. a whole GUI, fancy 🎀

✍️ AUTHOR ✍️

This manual page was auto-generated using sepolicy manpage. not me being auto-generated and still having more personality than half the manpages out there 💀

👀 SEE ALSO 👀

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

one last thing bestie — this whole thing is filed under pcp_pmproxy in the pcp_pmproxy_selinux(8) manual, dated 26-10-23. slay, go secure those processes 🫶💖🌈

📦 where this page comes from