failsafe_context man page

failsafe_context — The SELinux fail safe context configuration file

Description

The failsafe_context file allows SELinux-aware applications such as PAM(8) to obtain a known valid login context for an administrator if no valid default entries can be found elsewhere.

selinux_failsafe_context_path(3) will return the active policy path to this file. The default failsafe context file is:

/etc/selinux/{SELINUXTYPE}/contexts/failsafe_context

Where {SELINUXTYPE} is the entry from the selinux configuration file config (see selinux_config(5)).

The following functions read this file from the active policy path if they cannot obtain a default context:

get_default_context(3)
get_ordered_context_list(3)
get_ordered_context_list_with_level(3)
get_default_context_with_level(3)
get_default_context_with_role(3)
get_default_context_with_rolelevel(3)
query_user_context(3)
manual_user_enter_context(3)

File Format

The file consists of a single line entry as follows:

role:type[:range]

Where:

role type range
A role, type and optional range (for MCS/MLS), separated by colons (:) to form a valid login process context for an administrator to access the system.

Example

# ./contexts/failsafe_context
unconfined_r:unconfined_t:s0

See Also

selinux(8), selinux_failsafe_context_path(3), PAM(8), selinux_default_type_path(3), get_default_context(3), get_ordered_context_list(3), get_ordered_context_list_with_level(3), get_default_context_with_level(3), get_default_context_with_role(3), get_default_context_with_rolelevel(3), query_user_context(3), manual_user_enter_context(3), selinux_config(5)

Info

28-Nov-2011 Security Enhanced Linux SELinux configuration