# Copyright (C) 2005 Tresys Technology, LLC

policy_module(logging,1.0)

attribute logfile;

type devlog_t;

files_make_file(devlog_t)

type klogd_t;

type klogd_exec_t;

init_make_daemon_domain(klogd_t,klogd_exec_t)

type klogd_tmp_t;

files_make_temporary_file(klogd_tmp_t)

type klogd_var_run_t;

files_make_daemon_runtime_file(klogd_var_run_t)

type syslogd_t;

type syslogd_exec_t;

init_make_daemon_domain(syslogd_t,syslogd_exec_t)

type syslogd_tmp_t;

files_make_temporary_file(syslogd_tmp_t)

type syslogd_var_run_t;

files_make_daemon_runtime_file(syslogd_var_run_t)

type var_log_t, logfile;

files_make_file(var_log_t)

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

#

# klogd local policy

#

allow klogd_t klogd_tmp_t:file { getattr create read write append setattr unlink };

allow klogd_t klogd_var_run_t:file { getattr create read write append setattr unlink };

allow klogd_t self:capability sys_admin;

dontaudit klogd_t self:capability sys_resource;

kernel_read_system_state(klogd_t)

kernel_read_messages(klogd_t)

# Control syslog and console logging

kernel_clear_ring_buffer(klogd_t)

kernel_change_ring_buffer_level(klogd_t)

devices_raw_read_memory(klogd_t)

filesystem_get_all_filesystems_attributes(klogd_t)

bootloader_read_kernel_symbol_table(klogd_t)

libraries_use_dynamic_loader(klogd_t)

libraries_read_shared_libraries(klogd_t)

files_create_daemon_runtime_data(klogd_t,klogd_var_run_t)

files_create_private_tmp_data(klogd_t,klogd_tmp_t)

# read /etc/nsswitch.conf

files_read_general_system_config(klogd_t)

files_read_runtime_system_config(klogd_t)

miscfiles_read_localization(klogd_t)

logging_send_system_log_message(klogd_t)

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

#

# syslogd local policy

#

# Use capabilities.

allow syslogd_t self:capability { dac_override net_bind_service sys_resource sys_tty_config };

dontaudit syslogd_t self:capability sys_tty_config;

# create/append log files.

allow syslogd_t var_log_t:dir { read getattr search add_name write };

allow syslogd_t var_log_t:file { create ioctl getattr setattr append link };

# manage temporary files

allow syslogd_t syslogd_tmp_t:file { getattr create read write append setattr unlink };

allow syslogd_t syslogd_var_run_t:file { getattr create read write append setattr unlink };

# receive messages to be logged

allow syslogd_t devlog_t:unix_stream_socket name_bind;

allow syslogd_t devlog_t:unix_dgram_socket name_bind;

allow syslogd_t self:unix_dgram_socket { create read getattr write setattr append bind connect getopt setopt shutdown };

allow syslogd_t self:unix_stream_socket { create read getattr write setattr append bind connect getopt setopt shutdown listen accept };

allow syslogd_t self:unix_dgram_socket sendto;

allow syslogd_t self:fifo_file { getattr read write ioctl lock };

# Create and bind to /dev/log or /var/run/log.

allow syslogd_t devlog_t:sock_file { create ioctl read getattr lock write setattr append link unlink rename };

# manage pid file

allow syslogd_t syslogd_var_run_t:file { getattr create read write append setattr unlink };

files_create_daemon_runtime_data(syslogd_t,syslogd_var_run_t)

kernel_read_hardware_state(syslogd_t)

kernel_read_kernel_sysctl(syslogd_t)

devices_create_dev_entry(syslogd_t,devlog_t,sock_file)

terminal_ignore_use_console(syslogd_t)

corenetwork_network_raw_on_all_interfaces(syslogd_t)

corenetwork_network_udp_on_all_interfaces(syslogd_t)

corenetwork_network_raw_on_all_nodes(syslogd_t)

corenetwork_network_udp_on_all_nodes(syslogd_t)

corenetwork_network_udp_on_all_ports(syslogd_t)

corenetwork_bind_udp_on_all_nodes(syslogd_t)

corenetwork_bind_udp_on_syslogd_port(syslogd_t)

filesystem_get_all_filesystems_attributes(syslogd_t)

init_use_file_descriptors(syslogd_t)

init_script_use_pseudoterminal(syslogd_t)

domain_use_widely_inheritable_file_descriptors(syslogd_t)

files_read_general_system_config(syslogd_t)

files_create_daemon_runtime_data(syslogd_t,syslogd_var_run_t,file)

files_create_daemon_runtime_data(syslogd_t,devlog_t,sock_file)

files_create_private_tmp_data(syslogd_t,syslogd_tmp_t)

libraries_use_dynamic_loader(syslogd_t)

libraries_read_shared_libraries(syslogd_t)

sysnetwork_read_network_config(syslogd_t)

miscfiles_read_localization(syslogd_t)

#

# /initrd is not umounted before minilog starts

#

#dontaudit syslogd_t file_t:dir search;

#allow syslogd_t { tmpfs_t devpts_t }:dir search;

#dontaudit syslogd_t unlabeled_t:file read;

#dontaudit syslogd_t { userpty_type devpts_t }:chr_file getattr;

allow syslogd_t self:capability net_admin;

allow syslogd_t self:netlink_route_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown nlmsg_read };

ifdef(`klogd.te', `', `

# Allow access to /proc/kmsg for syslog-ng

kernel_read_messages(syslogd_t)

kernel_clear_ring_buffer(syslogd_t)

kernel_change_ring_buffer_level(syslogd_t)

')

optional_policy(`selinux.te',`

selinux_newrole_sigchld(syslogd_t)

')

optional_policy(`udev.te', `

udev_read_database(syslogd_t)

')

tunable_policy(`targeted_policy', `

terminal_ignore_use_general_physical_terminal(syslogd_t)

terminal_ignore_use_general_pseudoterminal(syslogd_t)

files_ignore_read_rootfs_file(syslogd_t)

')

ifdef(`TODO',`

allow syslogd_t proc_t:lnk_file read;

dontaudit syslogd_t unpriv_userdomain:fd use;

allow syslogd_t autofs_t:dir { search getattr };

dontaudit syslogd_t sysadm_home_dir_t:dir search;

optional_policy(`rhgb.te', `

allow syslogd_t rhgb_t:process sigchld;

allow syslogd_t rhgb_t:fd use;

allow syslogd_t rhgb_t:fifo_file { read write };

')

tunable_policy(`direct_sysadm_daemon',`

dontaudit syslogd_t admin_tty_type:chr_file rw_file_perms;

')

tunable_policy(`distro_suse', `

# suse creates a /dev/log under /var/lib/stunnel for chrooted stunnel

file_type_auto_trans(syslogd_t, var_lib_t, devlog_t, sock_file)

')

# can_network is for the UDP socket

can_ypbind(syslogd_t)

# log to the xconsole

allow syslogd_t xconsole_device_t:fifo_file { ioctl read write };

ifdef(`crond.te', `

# Write to the cron log.

allow syslogd_t crond_log_t:file rw_file_perms;

# for daemon re-start

allow system_crond_t syslogd_t:lnk_file read;

')

ifdef(`logrotate.te', `

allow logrotate_t syslogd_exec_t:file r_file_perms;

')

# for sending messages to logged in users

allow syslogd_t initrc_var_run_t:file { read lock };

dontaudit syslogd_t initrc_var_run_t:file write;

allow syslogd_t ttyfile:chr_file { getattr write };

#

# Special case to handle crashes

#

allow syslogd_t { device_t file_t }:sock_file unlink;

# Allow syslog to a terminal

allow syslogd_t tty_device_t:chr_file { getattr write ioctl append };

') dnl end TODO