## <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.
## </summary>
## <param name="domain">
## The process type to allow to read the device sysctls.
## </param>
#
interface(`kernel_read_device_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_dev_t;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_dev_t:dir r_dir_perms;
allow $1 sysctl_dev_t:file r_file_perms;
')
########################################
## <summary>
## Read and write device sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_device_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_dev_t;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_dev_t:file rw_file_perms;
')
########################################
## <summary>
## Allow caller to search virtual memory sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
##
#
interface(`kernel_search_vm_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_vm_t;
')
allow $1 { proc_t sysctl_t sysctl_vm_t }:dir search_dir_perms;
')
########################################
## <summary>
## Allow caller to read virtual memory sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
##
#
interface(`kernel_read_vm_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_vm_t;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_vm_t:file r_file_perms;
')
########################################
## <summary>
## Read and write virtual memory sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_vm_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_vm_t;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_vm_t:file rw_file_perms;
')
########################################
## <summary>
## Search network sysctl directories.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_search_network_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_net_t;
')
allow $1 { proc_t sysctl_t sysctl_net_t }:dir search;
')
########################################
## <summary>
## Do not audit attempts by caller to search network sysctl directories.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_search_network_sysctl',`
gen_require(`
type sysctl_net_t;
')
dontaudit $1 sysctl_net_t:dir search;
')
########################################
## <summary>
## Allow caller to read network sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
##
#
interface(`kernel_read_net_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_net_t;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_net_t:dir r_dir_perms;
allow $1 sysctl_net_t:file r_file_perms;
')
########################################
## <summary>
## Allow caller to modiry contents of sysctl network files.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_net_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_net_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_net_t:dir r_dir_perms;
allow $1 sysctl_net_t:file rw_file_perms;
')
########################################
## <summary>
## Allow caller to read unix domain
## socket sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_unix_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_net_t, sysctl_net_unix_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_net_t:dir r_dir_perms;
allow $1 sysctl_net_unix_t:file r_file_perms;
')
########################################
## <summary>
## Read and write unix domain
## socket sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_unix_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_net_t, sysctl_net_unix_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_net_t:dir r_dir_perms;
allow $1 sysctl_net_unix_t:file rw_file_perms;
')
########################################
## <summary>
## Read the hotplug sysctl.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_hotplug_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_kernel_t, sysctl_hotplug_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:dir r_dir_perms;
allow $1 sysctl_hotplug_t:file r_file_perms;
')
########################################
## <summary>
## Read and write the hotplug sysctl.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_hotplug_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_kernel_t, sysctl_hotplug_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:dir r_dir_perms;
allow $1 sysctl_hotplug_t:file rw_file_perms;
')
########################################
## <summary>
## Read the modprobe sysctl.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_modprobe_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_kernel_t, sysctl_modprobe_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:dir r_dir_perms;
allow $1 sysctl_modprobe_t:file r_file_perms;
')
########################################
## <summary>
## Read and write the modprobe sysctl.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_modprobe_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_kernel_t, sysctl_modprobe_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:dir r_dir_perms;
allow $1 sysctl_modprobe_t:file rw_file_perms;
')
########################################
## <summary>
## Do not audit attempts to search generic kernel sysctls.
## </summary>
## <param name="domain">
## Domain to not audit.
## </param>
#
interface(`kernel_dontaudit_search_kernel_sysctl',`
gen_require(`
type sysctl_kernel_t;
')
dontaudit $1 sysctl_kernel_t:dir search;
')
########################################
## <summary>
## Read generic kernel sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_kernel_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_kernel_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:file r_file_perms;
')
########################################
## <summary>
## Do not audit attempts to write generic kernel sysctls.
## </summary>
## <param name="domain">
## Domain to not audit.
## </param>
#
interface(`kernel_dontaudit_write_kernel_sysctl',`
gen_require(`
type sysctl_kernel_t;
class file write;
')
dontaudit $1 sysctl_kernel_t:file write;
')
########################################
## <summary>
## Read and write generic kernel sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_kernel_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_kernel_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:dir r_dir_perms;
allow $1 sysctl_kernel_t:file rw_file_perms;
')
########################################
## <summary>
## Read filesystem sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_fs_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_fs_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_fs_t:dir r_dir_perms;
allow $1 sysctl_fs_t:file r_file_perms;
')
########################################
## <summary>
## Read and write fileystem sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_fs_sysctl',`
gen_require(`
type proc_t, sysctl_t, sysctl_fs_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_t:dir r_dir_perms;
allow $1 sysctl_fs_t:dir r_dir_perms;
allow $1 sysctl_fs_t:file rw_file_perms;
')
########################################
## <summary>
## Read IRQ sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_irq_sysctl',`
gen_require(`
type proc_t, sysctl_irq_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_irq_t:dir r_dir_perms;
allow $1 sysctl_irq_t:file r_file_perms;
')
########################################
## <summary>
## Read and write IRQ sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
##
#
interface(`kernel_rw_irq_sysctl',`
gen_require(`
type proc_t, sysctl_irq_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 sysctl_irq_t:dir r_dir_perms;
allow $1 sysctl_irq_t:file rw_file_perms;
')
########################################
#
# kernel_read_rpc_sysctl(domain)
#
interface(`kernel_read_rpc_sysctl',`
gen_require(`
type proc_t, proc_net_t, sysctl_rpc_t;
class dir r_dir_perms;
class file r_file_perms;
')
allow $1 proc_t:dir search;
allow $1 proc_net_t:dir search;
allow $1 sysctl_rpc_t:dir r_dir_perms;
allow $1 sysctl_rpc_t:file r_file_perms;
')
########################################
#
# kernel_rw_rpc_sysctl(domain)
#
interface(`kernel_rw_rpc_sysctl',`
gen_require(`
type proc_t, proc_net_t, sysctl_rpc_t;
class dir r_dir_perms;
class file rw_file_perms;
')
allow $1 proc_t:dir search;
allow $1 proc_net_t:dir search;
allow $1 sysctl_rpc_t:dir r_dir_perms;
allow $1 sysctl_rpc_t:file rw_file_perms;
')
########################################
## <summary>
## Allow caller to read all sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_read_all_sysctl',`
gen_require(`
attribute sysctl_type;
type proc_t, proc_net_t;
class dir r_dir_perms;
class file r_file_perms;
')
# proc_net_t for /proc/net/rpc sysctls
allow $1 { proc_t proc_net_t }:dir search;
allow $1 sysctl_type:dir r_dir_perms;
allow $1 sysctl_type:file r_file_perms;
')
########################################
## <summary>
## Read and write all sysctls.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_all_sysctl',`
gen_require(`
attribute sysctl_type;
type proc_t, proc_net_t;
class dir r_dir_perms;
class file { rw_file_perms setattr };
')
# proc_net_t for /proc/net/rpc sysctls
allow $1 { proc_t proc_net_t }:dir search;
allow $1 sysctl_type:dir r_dir_perms;
allow $1 sysctl_type:file { rw_file_perms setattr };
')
########################################
## <summary>
## Send a kill signal to unlabeled processes.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_kill_unlabeled',`
gen_require(`
type unlabeled_t;
class process sigkill;
')
allow $1 unlabeled_t:process sigkill;
')
########################################
## <summary>
## Send general signals to unlabeled processes.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_signal_unlabeled',`
gen_require(`
type unlabeled_t;
class process signal;
')
allow $1 unlabeled_t:process signal;
')
########################################
## <summary>
## Send a null signal to unlabeled processes.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_signull_unlabeled',`
gen_require(`
type unlabeled_t;
class process signull;
')
allow $1 unlabeled_t:process signull;
')
########################################
## <summary>
## Send a stop signal to unlabeled processes.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_sigstop_unlabeled',`
gen_require(`
type unlabeled_t;
class process sigstop;
')
allow $1 unlabeled_t:process sigstop;
')
########################################
## <summary>
## Send a child terminated signal to unlabeled processes.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_sigchld_unlabeled',`
gen_require(`
type unlabeled_t;
class process sigchld;
')
allow $1 unlabeled_t:process sigchld;
')
########################################
## <summary>
## List unlabeled directories.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_list_unlabeled',`
gen_require(`
type unlabeled_t;
')
allow $1 unlabeled_t:dir r_dir_perms;
')
########################################
## <summary>
## Do not audit attempts to list unlabeled directories.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_dontaudit_list_unlabeled',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:dir list_dir_perms;
')
########################################
## <summary>
## Read and write unlabeled directories.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_rw_unlabeled_dir',`
gen_require(`
type unlabeled_t;
')
allow $1 unlabeled_t:dir rw_dir_perms;
')
########################################
## <summary>
## Do not audit attempts by caller to get the
## attributes of an unlabeled file.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_file',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:file getattr;
')
########################################
## <summary>
## Do not audit attempts by caller to
## read an unlabeled file.
## </summary>
## <param name="domain">
## Domain to not audit.
## </param>
#
interface(`kernel_dontaudit_read_unlabeled_file',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:file { getattr read };
')
########################################
## <summary>
## Do not audit attempts by caller to get the
## attributes of unlabeled symbolic links.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_symlinks',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:lnk_file getattr;
')
########################################
## <summary>
## Do not audit attempts by caller to get the
## attributes of unlabeled named pipes.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_pipes',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:fifo_file getattr;
')
########################################
## <summary>
## Do not audit attempts by caller to get the
## attributes of unlabeled named sockets.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_sockets',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:sock_file getattr;
')
########################################
## <summary>
## Do not audit attempts by caller to get attributes for
## unlabeled block devices.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_blk_dev',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:blk_file getattr;
')
########################################
## <summary>
## Read and write unlabeled block device nodes.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_use_unlabeled_blk_dev',`
gen_require(`
type unlabeled_t;
')
allow $1 unlabeled_t:blk_file getattr;
')
########################################
## <summary>
## Do not audit attempts by caller to get attributes for
## unlabeled character devices.
## </summary>
## <param name="domain">
## The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_chr_dev',`
gen_require(`
type unlabeled_t;
')
dontaudit $1 unlabeled_t:chr_file getattr;
')
########################################
## <summary>
## Allow caller to relabel unlabeled objects.
## </summary>
## <param name="domain">
## The process type relabeling the objects.
## </param>
#
interface(`kernel_relabel_unlabeled',`
gen_require(`
type unlabeled_t;
gen_require_set({ getattr relabelfrom },dir_file_class_set)
')
kernel_list_unlabeled($1)
allow $1 unlabeled_t:dir_file_class_set { getattr relabelfrom };
')
########################################
## <summary>
## Send and receive messages from an
## unlabeled IPSEC association.
## </summary>
## <desc>
## <p>
## Send and receive messages from an
## unlabeled IPSEC association. Network
## connections that are not protected
## by IPSEC have use an unlabeled
## assocation.
## </p>
## <p>
## The corenetwork interface
## corenet_sendrecv_no_ipsec() should
## be used instead of this one.
## </p>
## </desc>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_sendrecv_unlabeled_association',`
gen_require(`
type unlabeled_t;
')
allow $1 unlabeled_t:association { sendto recvfrom };
')
########################################
## <summary>
## Unconfined access to the kernel.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`kernel_unconfined',`
gen_require(`
type kernel_t, unlabeled_t, sysctl_t;
attribute proc_type, sysctl_type;
attribute kern_unconfined;
attribute can_load_kernmodule, can_receive_kernel_messages;
class dir r_dir_perms;
class file { rw_file_perms setattr };
')
allow $1 proc_type:{ dir file } *;
allow $1 sysctl_t:{ dir file } *;
allow $1 kernel_t:system *;
allow $1 unlabeled_t:dir_file_class_set *;
allow $1 unlabeled_t:filesystem *;
allow $1 unlabeled_t:association *;
typeattribute $1 can_load_kernmodule, can_receive_kernel_messages;
typeattribute $1 kern_unconfined;
kernel_rw_all_sysctl($1)
')
################################################################################
#
# Reversed interfaces
#
# The following are reversed interfaces, meaning the point of view of the caller
# of the interface is the object (target) type, rather than the subject (source)
# type, like all other interfaces in the policy. These interfaces are here to
# decouple policy from the base module, and should not be used anywhere else.
#
################################################################################
########################################
## <summary>
## Allow the kernel to send a SIGCHLD
## signal to the specified domain.
## </summary>
## <param name="domain">
## Domain receiving the SIGCHLD.
## </param>
#
interface(`kernel_sigchld_from',`
gen_require(`
type kernel_t;
class process sigchld;
')
allow kernel_t $1:process sigchld;
')
########################################
## <summary>
## Allow unlabeled processes to send a SIGCHLD
## signal to the specified domain.
## </summary>
## <param name="domain">
## Domain receiving the SIGCHLD.
## </param>
#
interface(`kernel_sigchld_from_unlabeled',`
gen_require(`
type unlabeled_t;
class process sigchld;
')
allow unlabeled_t $1:process sigchld;
')
########################################
## <summary>
## Allow the kernel to search the
## specified directory.
## </summary>
## <param name="dir_type">
## Directory type to search.
## </param>
#
interface(`kernel_search_from',`
gen_require(`
type kernel_t;
class dir search;
')
allow kernel_t $1:dir search;
')
########################################
## <summary>
## Allow the kernel to read the contents
## of the specified directory.
## </summary>
## <param name="dir_type">
## Directory type to list.
## </param>
#
interface(`kernel_list_from',`
gen_require(`
type kernel_t;
class dir r_dir_perms;
')
allow kernel_t $1:dir r_dir_perms;
')
########################################
## <summary>
## Allow the kernel to read the
## specified file.
## </summary>
## <param name="dir_type">
## Directory type to list.
## </param>
#
interface(`kernel_read_file_from',`
gen_require(`
type kernel_t;
class dir r_dir_perms;
')
allow kernel_t $1:file r_file_perms;
')
########################################
## <summary>
## Use the specified types for /lib directory
## and use the dynamic link/loader for automatic loading
## of shared libraries, and the link/loader
## cache.
## </summary>
## <param name="lib_type">
## The type of the lib directories.
## </param>
## <param name="ld_type">
## The type of the dynamic link/loader.
## </param>
## <param name="cache_type">
## The type of the dynamic link/loader cache.
## </param>
#
interface(`kernel_use_ld_so_from',`
gen_require(`
type kernel_t;
class dir r_dir_perms;
class lnk_file r_file_perms;
class file rx_file_perms;
')
files_list_etc(kernel_t)
allow kernel_t $1:dir r_dir_perms;
allow kernel_t $1:lnk_file r_file_perms;
allow kernel_t $2:lnk_file r_file_perms;
allow kernel_t $2:file rx_file_perms;
allow kernel_t $3:file r_file_perms;
')
########################################
## <summary>
## Allow the kernel to load and execute
## functions from the specified shared libraries.
## </summary>
## <param name="lib_dir_type">
## The type of the lib directories.
## </param>
## <param name="shlib_type">
## Shared library type.
## </param>
#
interface(`kernel_use_shared_libs_from',`
gen_require(`
type kernel_t;
class lnk_file r_file_perms;
class file rx_file_perms;
')
allow kernel_t $1:dir r_dir_perms;
allow kernel_t $1:lnk_file r_file_perms;
allow kernel_t $2:lnk_file r_file_perms;
allow kernel_t $2:file rx_file_perms;
')
#######################################
## <summary>
## Allow the kernel to send a syslog
## message to the specified domain,
## connecting over the specified named
## socket.
## </summary>
## <param name="socket">
## The type of the named socket file.
## </param>
## <param name="syslog_type">
## The domain of the syslog daemon.
## </param>
#
interface(`kernel_send_syslog_msg_from',`
gen_require(`
type syslogd_t, devlog_t;
class lnk_file read;
class sock_file rw_file_perms;
class unix_dgram_socket sendto;
class unix_stream_socket connectto;
')
allow kernel_t $1:lnk_file read;
allow kernel_t $1:sock_file rw_file_perms;
# the type of socket depends on the syslog daemon
allow kernel_t $2:unix_dgram_socket sendto;
allow kernel_t $2:unix_stream_socket connectto;
')
########################################
## <summary>
## Allow the kernel to send UDP network traffic
## the specified domain.
## </summary>
## <param name="domain">
## The type of the receiving domain.
## </param>
#
interface(`kernel_udp_sendfrom',`
gen_require(`
type kernel_t;
class udp_socket { sendto recvfrom };
')
allow kernel_t $1:udp_socket sendto;
allow $1 kernel_t:udp_socket recvfrom;
')