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

## <module name="mount" layer="system">
## <summary>Policy for mount.</summary>

########################################
## <interface name="mount_domtrans">
##	<description>
##		Execute mount in the mount domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`mount_domtrans',`
	requires_block_template(`$0'_depend)

	allow $1 mount_exec_t:file rx_file_perms;
	allow $1 mount_t:process transition;
	type_transition $1 mount_exec_t:process mount_t;
	dontaudit $1 mount_t:process { noatsecure siginh rlimitinh };

	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;
')

define(`mount_domtrans_depend',`
	type mount_t, mount_exec_t;

	class file rx_file_perms;
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd use;
	class fifo_file rw_file_perms;
')

########################################
## <interface name="mount_run">
##	<description>
##		Execute mount in the mount domain, and
##		allow the specified role the mount domain,
##		and use the caller's terminal.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="role">
##		The role to be allowed the mount domain.
##	</parameter>
##	<parameter name="terminal">
##		The type of the terminal allow the mount domain to use.
##	</parameter>
## </interface>
#
define(`mount_run',`
	requires_block_template(`$0'_depend)

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

define(`mount_run_depend',`
	type mount_t;

	class chr_file rw_file_perms;
')

########################################
## <interface name="mount_use_fd">
##     <description>
##             Use file descriptors for mount.
##     </description>
##     <parameter name="domain">
##             The type of the process performing this action.
##     </parameter>
## </interface>
#
define(`mount_use_fd',`
	requires_block_template(`$0'_depend)

	allow $1 mount_t:fd use; 
')

define(`mount_use_fd_depend',`
	type mount_t;

	class fd use;
')

########################################
## <interface name="mount_send_nfs_client_request">
##     <description>
##             Allow the mount domain to send nfs requests for mounting
##             network drives
##     </description>
##     <parameter name="domain">
##             The type of the process performing this action.
##     </parameter>
## </interface>
#
define(`mount_send_nfs_client_request',`
	requires_block_template(`$0'_depend)

	allow $1 mount_t:udp_socket rw_socket_perms;
')

define(`mount_send_nfs_client_request_depend',`
	type mount_t;

	class udp_socket rw_socket_perms;
')

## </module>