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

## <summary>Policy for mount.</summary>

########################################
## <summary>
##	Execute mount in the mount domain.
## </summary>
## <param name="domain">
##	<summary>
##	The type of the process performing this action.
##	</summary>
## </param>
#
interface(`mount_domtrans',`
	gen_require(`
		type mount_t, mount_exec_t;
	')

	domain_auto_trans($1,mount_exec_t,mount_t)

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

########################################
## <summary>
##	Execute mount in the mount domain, and
##	allow the specified role the mount domain,
##	and use the caller's terminal.
## </summary>
## <param name="domain">
##	<summary>
##	The type of the process performing this action.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to be allowed the mount domain.
##	</summary>
## </param>
## <param name="terminal">
##	<summary>
##	The type of the terminal allow the mount domain to use.
##	</summary>
## </param>
#
interface(`mount_run',`
	gen_require(`
		type mount_t;
	')

	mount_domtrans($1)
	role $2 types mount_t;
	allow mount_t $3:chr_file rw_file_perms;
')

########################################
## <summary>
##	Execute mount in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	The type of the process performing this action.
##	</summary>
## </param>
#
interface(`mount_exec',`
	gen_require(`
		type mount_exec_t;
	')

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

')

########################################
## <summary>
##	Use file descriptors for mount.
## </summary>
## <param name="domain">
##	<summary>
##	The type of the process performing this action.
##	</summary>
## </param>
#
interface(`mount_use_fds',`
	gen_require(`
		type mount_t;
	')

	allow $1 mount_t:fd use; 
')

########################################
## <summary>
##	Allow the mount domain to send nfs requests for mounting
##	network drives
## </summary>
## <param name="domain">
##	<summary>
##	The type of the process performing this action.
##	</summary>
## </param>
#
interface(`mount_send_nfs_client_request',`
	gen_require(`
		type mount_t;
	')

	allow $1 mount_t:udp_socket rw_socket_perms;
')

########################################
## <summary>
##	Execute mount in the unconfined mount domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`mount_domtrans_unconfined',`
	ifdef(`targeted_policy',`
		gen_require(`
			type unconfined_mount_t, mount_exec_t;
		')

		domain_auto_trans($1,mount_exec_t,unconfined_mount_t)

		allow $1 unconfined_mount_t:fd use;
		allow unconfined_mount_t $1:fd use;
		allow unconfined_mount_t $1:fifo_file rw_file_perms;
		allow unconfined_mount_t $1:process sigchld;
	',`
		errprint(`Warning: $0($1) has no effect in strict policy.'__endline__)
	')
')