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

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

#######################################
#
# corecmd_shell_entry_type(domain)
#
define(`corecmd_shell_entry_type',`
	gen_require(`
		type shell_exec_t;
	')

	domain_entry_file($1,shell_exec_t)
')

########################################
#
# corecmd_search_bin(domain)
#
define(`corecmd_search_bin',`
	gen_require(`
		type bin_t;
		class dir search;
	')

	allow $1 bin_t:dir search;
')

########################################
#
# corecmd_list_bin(domain)
#
define(`corecmd_list_bin',`
	gen_require(`
		type bin_t;
		class dir r_dir_perms;
	')

	allow $1 bin_t:dir r_dir_perms;
')

########################################
#
# corecmd_exec_bin(domain)
#
define(`corecmd_exec_bin',`
	gen_require(`
		type bin_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	can_exec($1,bin_t)

')

########################################
#
# corecmd_search_sbin(domain)
#
define(`corecmd_search_sbin',`
	gen_require(`
		type sbin_t;
		class dir search;
	')

	allow $1 sbin_t:dir search;
')

########################################
#
# corecmd_list_sbin(domain)
#
define(`corecmd_list_sbin',`
	gen_require(`
		type sbin_t;
		class dir r_dir_perms;
	')

	allow $1 sbin_t:dir r_dir_perms;
')

########################################
#
# corecmd_dontaudit_getattr_sbin_file(domain)
#
define(`corecmd_dontaudit_getattr_sbin_file',`
	gen_require(`
		type sbin_t;
		class file getattr;
	')

	allow $1 sbin_t:file getattr;
')

########################################
#
# corecmd_exec_sbin(domain)
#
define(`corecmd_exec_sbin',`
	gen_require(`
		type sbin_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
	')

	allow $1 sbin_t:dir r_dir_perms;
	allow $1 sbin_t:lnk_file r_file_perms;
	can_exec($1,sbin_t)

')

########################################
#
# corecmd_exec_shell(domain)
#
define(`corecmd_exec_shell',`
	gen_require(`
		type bin_t, shell_exec_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	can_exec($1,shell_exec_t)
')

########################################
#
# corecmd_exec_ls(domain)
#
define(`corecmd_exec_ls',`
	gen_require(`
		type bin_t, ls_exec_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	can_exec($1,ls_exec_t)
')

########################################
## <interface name="corecmd_shell_spec_domtrans">
##	<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>
## </interface>
#
define(`corecmd_shell_spec_domtrans',`
	gen_require(`
		type bin_t, shell_exec_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
		class fd use;
		class fifo_file rw_file_perms;
		class process sigchld;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;

	domain_trans($1,shell_exec_t,$2)

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

########################################
## <interface name="corecmd_domtrans_shell">
##	<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>
## </interface>
#
define(`corecmd_domtrans_shell',`
	gen_require(`
		type shell_exec_t;
	')

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

########################################
#
# corecmd_chroot_exec_chroot(domain)
#
define(`corecmd_chroot_exec_chroot',`
	gen_require(`
		type chroot_exec_t;
		class capability sys_chroot;
	')

	can_exec($1,chroot_exec_t)
	allow $1 self:capability sys_chroot;
')

## </module>