selinux-policy/refpolicy/policy/modules/system/corecommands.if

## <module name="corecommands" layer="system">
## <summary>
##	Core policy for shells, and generic programs
##	in /bin, /sbin, /usr/bin, and /usr/sbin.
## </summary>

#######################################
#
# corecommands_make_shell_entrypoint(domain)
#
define(`corecommands_make_shell_entrypoint',`
	requires_block_template(`$0'_depend)

	domain_make_entrypoint_file($1,shell_exec_t)
')

define(`corecommands_make_shell_entrypoint_depend',`
	type shell_exec_t;
')

########################################
#
# corecommands_search_general_programs_directory(domain)
#
define(`corecommands_search_general_programs_directory',`
	requires_block_template(`$0'_depend)

	allow $1 bin_t:dir search;
')

define(`corecommands_search_general_programs_directory_depend',`
	type bin_t;

	class dir search;
')

########################################
#
# corecommands_read_general_programs_directory(domain)
#
define(`corecommands_read_general_programs_directory',`
	requires_block_template(`$0'_depend)

	allow $1 bin_t:dir { getattr search read };
')

define(`corecommands_read_general_programs_directory_depend',`
	type bin_t;

	class dir { getattr search read };
')

########################################
#
# corecommands_execute_general_programs(domain)
#
define(`corecommands_execute_general_programs',`
	requires_block_template(`$0'_depend)

	allow $1 bin_t:dir { getattr search read };
	allow $1 bin_t:lnk_file { getattr read };
	allow $1 bin_t:file { getattr read ioctl lock execute execute_no_trans };
')

define(`corecommands_execute_general_programs_depend',`
	type bin_t;

	class dir { getattr search read };
	class lnk_file { getattr read };
	class file { getattr read ioctl lock execute execute_no_trans };
')

########################################
#
# corecommands_search_system_programs_directory(domain)
#
define(`corecommands_search_system_programs_directory',`
	requires_block_template(`$0'_depend)

	allow $1 sbin_t:dir search;
')

define(`corecommands_search_system_programs_directory_depend',`
	type sbin_t;

	class dir search;
')

########################################
#
# corecommands_read_system_programs_directory(domain)
#
define(`corecommands_read_system_programs_directory',`
	requires_block_template(`$0'_depend)

	allow $1 sbin_t:dir r_dir_perms;
')

define(`corecommands_read_system_programs_directory_depend',`
	type sbin_t;

	class dir r_dir_perms;
')

########################################
#
# corecommands_ignore_get_system_programs_attributes(domain)
#
define(`corecommands_ignore_get_system_programs_attributes',`
	requires_block_template(`$0'_depend)

	allow $1 sbin_t:file getattr;
')

define(`corecommands_ignore_get_system_programs_attributes_depend',`
	type sbin_t;

	class file getattr;
')

########################################
#
# corecommands_execute_system_programs(domain)
#
define(`corecommands_execute_system_programs',`
	requires_block_template(`$0'_depend)

	allow $1 sbin_t:dir { getattr search read };
	allow $1 sbin_t:lnk_file { getattr read };
	allow $1 sbin_t:file { getattr read ioctl lock execute execute_no_trans };
')

define(`corecommands_execute_system_programs_depend',`
	type sbin_t;

	class dir { getattr search read };
	class lnk_file { getattr read };
	class file { getattr read ioctl lock execute execute_no_trans };
')

########################################
#
# corecommands_execute_shell(domain)
#
define(`corecommands_execute_shell',`
	requires_block_template(`$0'_depend)

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file { getattr read };
	allow $1 shell_exec_t:file { getattr read lock ioctl execute execute_no_trans };
')

define(`corecommands_execute_shell_depend',`
	type bin_t, shell_exec_t;

	class dir r_dir_perms;
	class lnk_file { getattr read };
	class file { getattr read lock ioctl execute execute_no_trans };
')

########################################
#
# corecommands_execute_ls(domain)
#
define(`corecommands_execute_ls',`
	requires_block_template(`$0'_depend)

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file { getattr read };
	allow $1 ls_exec_t:file { getattr read lock ioctl execute execute_no_trans };
')

define(`corecommands_execute_shell_depend',`
	type bin_t, ls_exec_t;

	class dir r_dir_perms;
	class lnk_file { getattr read };
	class file { getattr read lock ioctl execute execute_no_trans };
')

########################################
## <interface name="corecommands_shell_explicit_transition">
##	<description>
##		Execute a shell in the target domain.  This
##		is an explicit transition, requiring the
##		caller to use setexeccon().
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="target_domain">
##		The type of the shell process.
##	</parameter>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`corecommands_shell_explicit_transition',`
	requires_block_template(`$0'_depend)

	allow $1 bin_t:dir { getattr search read };
	allow $1 bin_t:lnk_file { getattr read };
	allow $1 shell_exec_t:file { getattr read execute };
	allow $1 $2:process transition;
	dontaudit $1 $2:process { noatsecure siginh rlimitinh };

	allow $1 $2:fd use;
	allow $2 $1:fd use;
	allow $2 $1:fifo_file rw_file_perms;
	allow $2 $1:process sigchld;
')

define(`corecommands_shell_explicit_transition_depend',`
	type bin_t, shell_exec_t;

	class dir { getattr search read };
	class lnk_file { getattr read };
	class file { getattr read execute };
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd use;
	class fifo_file rw_file_perms;
')

########################################
## <interface name="corecommands_shell_transition">
##	<description>
##		Execute a shell in the target domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="target_domain">
##		The type of the shell process.
##	</parameter>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`corecommands_shell_transition',`
	requires_block_template(`$0'_depend)

	corecommands_shell_explicit_transition($1,$2)
	type_transition $1 shell_exec_t:process $2;
')

define(`corecommands_shell_transition_depend',`
	type shell_exec_t;
')

########################################
#
# corecommands_chroot(domain)
#
define(`corecommands_chroot',`
	requires_block_template(`$0'_depend)

	allow $1 chroot_exec_t:file { getattr read execute execute_no_trans };
	allow $1 self:capability sys_chroot;
')

define(`corecommands_chroot_depend',`
	type chroot_exec_t;

	class file { getattr read execute execute_no_trans };
	class capability sys_chroot;
')

## </module>