## <summary>

##	Policy for kernel threads, proc filesystem,and unlabeled processes and objects.

## </summary>

## <required val="true">

##	This module has initial SIDs.

## </required>

########################################

## <summary>

##	Allows to start userland processes

##	by transitioning to the specified domain.

## </summary>

## <param name="domain">

##	The process type entered by kernel.

## </param>

## <param name="entrypoint">

##	The executable type for the entrypoint.

## </param>

#

interface(`kernel_userland_entry',`

	gen_require(`

		type kernel_t;

		class process sigchld;

		class fifo_file rw_file_perms;

		class fd use;

	')

	domain_auto_trans(kernel_t, $2, $1)

	allow kernel_t $1:fd use;

	allow $1 kernel_t:fd use;

	allow $1 kernel_t:fifo_file rw_file_perms;

	allow $1 kernel_t:process sigchld;

	ifdef(`enable_mls',`

		allow kernel_t $1:process noatsecure;

	')

')

########################################

## <summary>

##	Allows the kernel to mount filesystems on

##	the specified directory type.

## </summary>

## <param name="directory_type">

##	The type of the directory to use as a mountpoint.

## </param>

#

interface(`kernel_rootfs_mountpoint',`

	gen_require(`

		type kernel_t;

		class dir mounton;

	')

	allow kernel_t $1:dir mounton;

')

########################################

## <summary>

##	Set the process group of kernel threads.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_setpgid',`

	gen_require(`

		type kernel_t;

		class process setpgid;

	')

	allow $1 kernel_t:process setpgid;

')

########################################

## <summary>

##	Send a SIGCHLD signal to kernel threads.

## </summary>

## <param name="domain">

##	The type of the process sending the signal.

## </param>

#

interface(`kernel_sigchld',`

	gen_require(`

		type kernel_t;

		class process sigchld;

	')

	allow $1 kernel_t:process sigchld;

')

########################################

## <summary>

##	Send a generic signal to kernel threads.

## </summary>

## <param name="domain">

##	The type of the process sending the signal.

## </param>

#

interface(`kernel_signal',`

	gen_require(`

		type kernel_t;

		class process signal;

	')

	allow kernel_t $1:process signal;

')

########################################

## <summary>

##	Allows the kernel to share state information with

##	the caller.

## </summary>

## <param name="domain">

##	The type of the process with which to share state information.

## </param>

#

interface(`kernel_share_state',`

	gen_require(`

		type kernel_t;

		class process share;

	')

	allow kernel_t $1:process share;

')

########################################

## <summary>

##	Permits caller to use kernel file descriptors.

## </summary>

## <param name="domain">

##	The type of the process using the descriptors.

## </param>

#

interface(`kernel_use_fd',`

	gen_require(`

		type kernel_t;

		class fd use;

	')

	allow $1 kernel_t:fd use;

')

########################################

## <summary>

##	Do not audit attempts to use

##	kernel file descriptors.

## </summary>

## <param name="domain">

##	The type of process not to audit.

## </param>

#

interface(`kernel_dontaudit_use_fd',`

	gen_require(`

		type kernel_t;

		class fd use;

	')

	dontaudit $1 kernel_t:fd use;

')

########################################

## <summary>

##	Read and write kernel unnamed pipes.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_rw_pipe',`

	gen_require(`

		type kernel_t;

		class fifo_file { read write };

	')

	allow $1 kernel_t:fifo_file { read write };

')

########################################

## <summary>

##	Read and write kernel unix datagram sockets.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_rw_unix_dgram_socket',`

	gen_require(`

		type kernel_t;

		class unix_dgram_socket { read write ioctl };

	')

	allow $1 kernel_t:unix_dgram_socket { read write ioctl };

')

########################################

## <summary>

##	Send messages to kernel unix datagram sockets.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_sendto_unix_dgram_socket',`

	gen_require(`

		type kernel_t;

		class unix_dgram_socket sendto;

	')

	allow $1 kernel_t:unix_dgram_socket sendto;

')

########################################

## <summary>

##	Receive messages from kernel TCP sockets.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_tcp_recvfrom',`

	gen_require(`

		type kernel_t;

		class tcp_socket recvfrom;

	')

	allow $1 kernel_t:tcp_socket recvfrom;

')

########################################

## <summary>

##	Receive messages from kernel UDP sockets.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_udp_recvfrom',`

	gen_require(`

		type kernel_t;

		class udp_socket recvfrom;

	')

	allow $1 kernel_t:udp_socket recvfrom;

')

########################################

## <summary>

##	Allows caller to load kernel modules

## </summary>

## <param name="domain">

##	The process type to allow to load kernel modules.

## </param>

#

interface(`kernel_load_module',`

	gen_require(`

		attribute can_load_kernmodule;

		class capability sys_module;

	')

	allow $1 self:capability sys_module;

	typeattribute $1 can_load_kernmodule;

')

########################################

## <summary>

##	Allows caller to read the ring buffer.

## </summary>

## <param name="domain">

##	The process type allowed to read the ring buffer.

## </param>

#

interface(`kernel_read_ring_buffer',`

	gen_require(`

		type kernel_t;

		class system syslog_read;

	')

	allow $1 kernel_t:system syslog_read;

')

########################################

## <summary>

##	Do not audit attempts to read the ring buffer.

## </summary>

## <param name="domain">

##	The domain to not audit.

## </param>

#

interface(`kernel_dontaudit_read_ring_buffer',`

	gen_require(`

		type kernel_t;

		class system syslog_read;

	')

	dontaudit $1 kernel_t:system syslog_read;

')

########################################

## <summary>

##	Change the level of kernel messages logged to the console.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_change_ring_buffer_level',`

	gen_require(`

		type kernel_t;

		class system syslog_console;

	')

	allow $1 kernel_t:system syslog_console;

')

########################################

## <summary>

##	Allows the caller to clear the ring buffer.

## </summary>

## <param name="domain">

##	The process type clearing the buffer.

## </param>

#

interface(`kernel_clear_ring_buffer',`

	gen_require(`

		type kernel_t;

		class system syslog_mod;

	')

	allow $1 kernel_t:system syslog_mod;

')

########################################

## <summary>

##	Get information on all System V IPC objects.

## </summary>

## <param name="domain">

##	

## </param>

#

interface(`kernel_get_sysvipc_info',`

	gen_require(`

		type kernel_t;

		class system ipc_info;

	')

	allow $1 kernel_t:system ipc_info;

')

########################################

## <summary>

##	Get the attributes of a kernel debugging filesystem.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_getattr_debugfs',`

	gen_require(`

		type debugfs_t;

	')

	allow $1 debugfs_t:filesystem getattr;

')

########################################

## <summary>

##	Mount a kernel debugging filesystem.

## </summary>

## <param name="domain">

##	The type of the domain mounting the filesystem.

## </param>

#

interface(`kernel_mount_debugfs',`

	gen_require(`

		type debugfs_t;

	')

	allow $1 debugfs_t:filesystem mount;

')

########################################

## <summary>

##	Unmount a kernel debugging filesystem.

## </summary>

## <param name="domain">

##	The type of the domain unmounting the filesystem.

## </param>

#

interface(`kernel_unmount_debugfs',`

	gen_require(`

		type debugfs_t;

	')

	allow $1 debugfs_t:filesystem unmount;

')

########################################

## <summary>

##	Remount a kernel debugging filesystem.

## </summary>

## <param name="domain">

##	The type of the domain remounting the filesystem.

## </param>

#

interface(`kernel_remount_debugfs',`

	gen_require(`

		type debugfs_t;

	')

	allow $1 debugfs_t:filesystem remount;

')

########################################

## <summary>

##	Search the contents of a kernel debugging filesystem.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_search_debugfs',`

	gen_require(`

		type debugfs_t;

	')

	allow $1 debugfs_t:dir search;

')

########################################

## <summary>

##	Read information from the debugging filesystem.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_read_debugfs',`

	gen_require(`

		type debugfs_t;

	')

	allow $1 debugfs_t:dir r_dir_perms;

	allow $1 debugfs_t:file r_file_perms;

	allow $1 debugfs_t:lnk_file { getattr read };

')

########################################

## <summary>

##	Get the attributes of the proc filesystem.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_getattr_proc',`

	gen_require(`

		type proc_t;

		class filesystem getattr;

	')

	allow $1 proc_t:filesystem getattr;

')

########################################

## <summary>

##	Search directories in /proc.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_search_proc',`

	gen_require(`

		type proc_t;

		class dir search;

	')

	allow $1 proc_t:dir search;

')

########################################

## <summary>

##	List the contents of directories in /proc.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_list_proc',`

	gen_require(`

		type proc_t;

		class dir r_dir_perms;

	')

	allow $1 proc_t:dir r_dir_perms;

')

########################################

## <summary>

##	Do not audit attempts to list the

##	contents of directories in /proc.

## </summary>

## <param name="domain">

##	Domain to not audit.

## </param>

#

interface(`kernel_dontaudit_list_proc',`

	gen_require(`

		type proc_t;

	')

	dontaudit $1 proc_t:dir list_dir_perms;

')

########################################

## <summary>

##	Get the attributes of files in /proc.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_getattr_proc_files',`

	gen_require(`

		type proc_t;

	')

	allow $1 proc_t:dir search;

	allow $1 proc_t:file getattr;

')

########################################

## <summary>

##	Read symbolic links in /proc.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`kernel_read_proc_symlinks',`

	gen_require(`

		type proc_t;

		class dir search;

		class lnk_file { getattr read };

	')

	allow $1 proc_t:dir search;

	allow $1 proc_t:lnk_file { getattr read };

')

########################################

## <summary>

##	Allows caller to read system state information in proc.

## </summary>

## <param name="domain">

##	The process type reading the system state information.

## </param>

#

interface(`kernel_read_system_state',`

	gen_require(`

		type proc_t;

	')

	allow $1 proc_t:dir r_dir_perms;

	allow $1 proc_t:lnk_file { getattr read };

	allow $1 proc_t:file r_file_perms;

')

########################################

## <summary>

##	Write to generic proc entries.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

# cjp: this should probably go away.  any

# file thats writable in proc should really

# have its own label.

#

interface(`kernel_write_proc_file',`

	gen_require(`

		type proc_t;

	')

	allow $1 proc_t:dir search;

	allow $1 proc_t:file { append write };

')

########################################

## <summary>

##	Do not audit attempts by caller to

##	read system state information in proc.

## </summary>

## <param name="domain">

##	The process type not to audit.

## </param>

#

interface(`kernel_dontaudit_read_system_state',`

	gen_require(`

		type proc_t;

		class file read;

	')

	dontaudit $1 proc_t:file read;

')

########################################

## <summary>

##	Do not audit attempts by caller to

##	read system state information in proc.

## </summary>

## <param name="domain">

##	The process type not to audit.

## </param>

#

interface(`kernel_dontaudit_read_proc_symlink',`

	gen_require(`

		type proc_t;

		class lnk_file read;

	')

	dontaudit $1 proc_t:lnk_file read;

')

#######################################

## <summary>

##	Allow caller to read the state information for software raid.

## </summary>

## <param name="domain">

##	The process type reading software raid state.

## </param>

#

interface(`kernel_read_software_raid_state',`

	gen_require(`

		type proc_t, proc_mdstat_t;

		class dir r_dir_perms;

		class file r_file_perms;

	')

	allow $1 proc_t:dir r_dir_perms;

	allow $1 proc_mdstat_t:file r_file_perms;

')

#######################################

## <summary>

##	Allow caller to read and set the state information for software raid.

## </summary>

## <param name="domain">

##	The process type reading software raid state.

## </param>

#

interface(`kernel_rw_software_raid_state',`

	gen_require(`

		type proc_t, proc_mdstat_t;

		class dir r_dir_perms;

		class file rw_file_perms;

	')

	allow $1 proc_t:dir r_dir_perms;

	allow $1 proc_mdstat_t:file rw_file_perms;

')

########################################

## <summary>

##	Allows caller to get attribues of core kernel interface.

## </summary>

## <param name="domain">

##	The process type getting the attibutes.

## </param>

#

interface(`kernel_getattr_core',`

	gen_require(`

		type proc_t, proc_kcore_t;

		class dir { search getattr read };

		class file getattr;

	')

	allow $1 proc_t:dir r_dir_perms;

	allow $1 proc_kcore_t:file getattr;

')

########################################

## <summary>

##	Do not audit attempts to get the attributes of

##	core kernel interfaces.

## </summary>

## <param name="domain">

##	The process type to not audit.

## </param>

#

interface(`kernel_dontaudit_getattr_core',`

	gen_require(`

		type proc_kcore_t;

		class file getattr;

	')

	dontaudit $1 proc_kcore_t:file getattr;

')

########################################

## <summary>

##	Allow caller to read kernel messages

##	using the /proc/kmsg interface.

## </summary>

## <param name="domain">

##	The process type reading the messages.

## </param>

#

interface(`kernel_read_messages',`

	gen_require(`

		attribute can_receive_kernel_messages;

		type proc_kmsg_t, proc_t;

		class dir search;

		class file r_file_perms;

	')

	allow $1 proc_t:dir search;

	allow $1 proc_kmsg_t:file r_file_perms;

	typeattribute $1 can_receive_kernel_messages;

')

########################################

## <summary>

##	Allow caller to get the attributes of kernel message

##	interface (/proc/kmsg).

## </summary>

## <param name="domain">

##	The process type getting the attributes.

## </param>

#

interface(`kernel_getattr_message_if',`

	gen_require(`

		type proc_kmsg_t, proc_t;

		class dir search;

		class file getattr;

	')

	allow $1 proc_t:dir search;

	allow $1 proc_kmsg_t:file getattr;

')

########################################

## <summary>

##	Do not audit attempts by caller to get the attributes of kernel

##	message interfaces.

## </summary>

## <param name="domain">

##	The process type not to audit.

## </param>

#

interface(`kernel_dontaudit_getattr_message_if',`

	gen_require(`

		type proc_kmsg_t, proc_t;

		class file getattr;

	')

	dontaudit $1 proc_kmsg_t:file getattr;

')

########################################

## <summary>

##	Do not audit attempts to search the network

##	state directory.

## </summary>

## <param name="domain">

##	The process type reading the state.

## </param>

##

#

interface(`kernel_dontaudit_search_network_state',`

	gen_require(`

		type proc_net_t;

		class dir search;

	')

	dontaudit $1 proc_net_t:dir search;

')

########################################

## <summary>

##	Allow searching of network state directory.

## </summary>

## <param name="domain">

##	The process type reading the state.

## </param>

##

#

interface(`kernel_search_network_state',`

	gen_require(`

		type proc_net_t;

	')

	allow $1 proc_net_t:dir search;

')

########################################

## <summary>

##	Allow caller to read the network state information.

## </summary>

## <param name="domain">

##	The process type reading the state.

## </param>

##

#

interface(`kernel_read_network_state',`

	gen_require(`

		type proc_t, proc_net_t;

	')

	allow $1 proc_t:dir search;

	allow $1 proc_net_t:dir r_dir_perms;

	allow $1 proc_net_t:file r_file_perms;

	allow $1 proc_net_t:lnk_file { getattr read };

')

########################################

## <summary>

##	Allow caller to read the network state symbolic links.

## </summary>

## <param name="domain">

##	The process type reading the state.

## </param>

##

#

interface(`kernel_read_network_state_symlinks',`

	gen_require(`

		type proc_t, proc_net_t;

		class dir r_dir_perms;

		class lnk_file r_file_perms;

	')

	allow $1 proc_t:dir search;

	allow $1 proc_net_t:dir r_dir_perms;

	allow $1 proc_net_t:lnk_file r_file_perms;

')

########################################

## <summary>

##	Do not audit attempts by caller to search

##	the base directory of sysctls.

## </summary>

## <param name="domain">

##	The process type not to audit.

## </param>

##

#

interface(`kernel_dontaudit_search_sysctl',`

	gen_require(`

		type sysctl_t;

	')

	dontaudit $1 sysctl_t:dir search;

')

########################################

## <summary>

##	Allow access to read sysctl directories.

## </summary>

## <param name="domain">

##	The process type to allow to read sysctl directories.

## </param>

##

#

interface(`kernel_read_sysctl',`

	gen_require(`

		type sysctl_t;

		class dir r_dir_perms;

	')

	allow $1 sysctl_t:dir r_dir_perms;

')

########################################

## <summary>

##	Allow caller to read the device sysctls.