selinux-policy/refpolicy/policy/modules/system/logging.te

policy_module(logging,1.3.1)

########################################
#
# Declarations
#

attribute logfile;

type auditctl_t;
type auditctl_exec_t;
init_system_domain(auditctl_t,auditctl_exec_t)
role system_r types auditctl_t;

type auditd_etc_t;
files_security_file(auditd_etc_t)

type auditd_log_t;
files_security_file(auditd_log_t)

type auditd_t;
# real declaration moved to mls until
# range_transition works in loadable modules
gen_require(`
	type auditd_exec_t;
')
init_daemon_domain(auditd_t,auditd_exec_t)

type auditd_var_run_t;
files_pid_file(auditd_var_run_t)

type devlog_t;
files_type(devlog_t)
mls_trusted_object(devlog_t)

type klogd_t;
type klogd_exec_t;
init_daemon_domain(klogd_t,klogd_exec_t)

type klogd_tmp_t;
files_tmp_file(klogd_tmp_t)

type klogd_var_run_t;
files_pid_file(klogd_var_run_t)

type syslogd_t;
type syslogd_exec_t;
init_daemon_domain(syslogd_t,syslogd_exec_t)

type syslogd_tmp_t;
files_tmp_file(syslogd_tmp_t)

type syslogd_var_run_t;
files_pid_file(syslogd_var_run_t)

type var_log_t;
logging_log_file(var_log_t)

########################################
#
# Auditd local policy
#

allow auditctl_t self:capability { audit_write audit_control };
allow auditctl_t self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay nlmsg_readpriv };

libs_use_ld_so(auditctl_t)
libs_use_shared_libs(auditctl_t)

allow auditctl_t etc_t:file { getattr read };

allow auditctl_t auditd_etc_t:file r_file_perms;

kernel_read_kernel_sysctls(auditctl_t)
kernel_read_proc_symlinks(auditctl_t)

domain_read_all_domains_state(auditctl_t)
domain_use_interactive_fds(auditctl_t)

mls_file_read_up(auditctl_t)

term_use_all_terms(auditctl_t)

init_use_script_ptys(auditctl_t)
init_dontaudit_use_fds(auditctl_t)

locallogin_dontaudit_use_fds(auditctl_t)

logging_send_syslog_msg(auditctl_t)

ifdef(`targeted_policy',`
	term_use_generic_ptys(auditctl_t)
	term_use_unallocated_ttys(auditctl_t)
')

ifdef(`TODO',`
role secadm_r types auditctl_t;
role sysadm_r types auditctl_t;
audit_manager_domain(secadm_t)

ifdef(`targeted_policy', `', `
ifdef(`enable_mls', `
audit_manager_domain(secadm_t)
', `
audit_manager_domain(sysadm_t)
') 
allow auditctl_t admin_tty_type:chr_file rw_file_perms;
')
') dnl end TODO

########################################
#
# Auditd local policy
#

allow auditd_t self:capability { audit_write audit_control sys_nice sys_resource };
dontaudit auditd_t self:capability sys_tty_config;
allow auditd_t self:process { signal_perms setpgid setsched };
allow auditd_t self:file { getattr read write };
allow auditd_t self:unix_dgram_socket create_socket_perms;
allow auditd_t self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay nlmsg_readpriv };
allow auditd_t self:fifo_file rw_file_perms;

allow auditd_t auditd_etc_t:file r_file_perms;

allow auditd_t auditd_log_t:dir rw_dir_perms;
allow auditd_t auditd_log_t:file create_file_perms;
allow auditd_t auditd_log_t:lnk_file create_lnk_perms;
allow auditd_t var_log_t:dir search;

allow auditd_t auditd_var_run_t:file create_file_perms;
allow auditd_t auditd_var_run_t:dir rw_dir_perms;
files_pid_filetrans(auditd_t,auditd_var_run_t,file)

kernel_read_kernel_sysctls(auditd_t)
kernel_list_proc(auditd_t)
kernel_read_proc_symlinks(auditd_t)

dev_read_sysfs(auditd_t)

fs_getattr_all_fs(auditd_t)
fs_search_auto_mountpoints(auditd_t)

term_dontaudit_use_console(auditd_t)

# cjp: why?
corecmd_exec_sbin(auditd_t)

domain_use_interactive_fds(auditd_t)

files_read_etc_files(auditd_t)
files_list_usr(auditd_t)

init_use_fds(auditd_t)
init_exec(auditd_t)
init_write_initctl(auditd_t)
init_use_script_ptys(auditd_t)

logging_send_syslog_msg(auditd_t)

libs_use_ld_so(auditd_t)
libs_use_shared_libs(auditd_t)

miscfiles_read_localization(auditd_t)

mls_file_read_up(auditd_t)
mls_rangetrans_target(auditd_t)

seutil_dontaudit_read_config(auditd_t)

userdom_dontaudit_use_unpriv_user_fds(auditd_t)
userdom_dontaudit_search_sysadm_home_dirs(auditd_t)
# cjp: this is questionable
userdom_use_sysadm_ttys(auditd_t)

ifdef(`targeted_policy',`
	term_dontaudit_use_generic_ptys(auditd_t)
	term_dontaudit_use_unallocated_ttys(auditd_t)
	unconfined_dontaudit_read_pipes(auditd_t)
')

optional_policy(`
	seutil_sigchld_newrole(auditd_t)
')

optional_policy(`
	udev_read_db(auditd_t)
')

########################################
#
# klogd local policy
#

allow klogd_t self:capability sys_admin;
dontaudit klogd_t self:capability { sys_resource sys_tty_config };
allow klogd_t self:process signal_perms;

allow klogd_t klogd_tmp_t:file create_file_perms;
allow klogd_t klogd_tmp_t:dir create_dir_perms;
files_tmp_filetrans(klogd_t,klogd_tmp_t,{ file dir })

allow klogd_t klogd_var_run_t:file create_file_perms;
allow klogd_t klogd_var_run_t:dir rw_dir_perms;
files_pid_filetrans(klogd_t,klogd_var_run_t,file)

kernel_read_system_state(klogd_t)
kernel_read_messages(klogd_t)
kernel_read_kernel_sysctls(klogd_t)
# Control syslog and console logging
kernel_clear_ring_buffer(klogd_t)
kernel_change_ring_buffer_level(klogd_t)

files_read_kernel_symbol_table(klogd_t)

dev_read_raw_memory(klogd_t)
dev_read_sysfs(klogd_t)

fs_getattr_all_fs(klogd_t)
fs_search_auto_mountpoints(klogd_t)

term_dontaudit_use_console(klogd_t)

domain_use_interactive_fds(klogd_t)

files_read_etc_runtime_files(klogd_t)
# read /etc/nsswitch.conf
files_read_etc_files(klogd_t)

init_use_fds(klogd_t)
init_use_script_ptys(klogd_t)

libs_use_ld_so(klogd_t)
libs_use_shared_libs(klogd_t)

logging_send_syslog_msg(klogd_t)

miscfiles_read_localization(klogd_t)

mls_file_read_up(klogd_t)

userdom_dontaudit_search_sysadm_home_dirs(klogd_t)

optional_policy(`
	udev_read_db(klogd_t)
')

ifdef(`targeted_policy',`
	term_dontaudit_use_generic_ptys(klogd_t)
	term_dontaudit_use_unallocated_ttys(klogd_t)
')

optional_policy(`
	seutil_sigchld_newrole(klogd_t)
')

########################################
#
# syslogd local policy
#

# sys_admin chown fsetid for syslog-ng
# cjp: why net_admin!
allow syslogd_t self:capability { dac_override sys_resource sys_tty_config net_admin sys_admin chown fsetid };
dontaudit syslogd_t self:capability sys_tty_config;
allow syslogd_t self:process signal_perms;
allow syslogd_t self:netlink_route_socket r_netlink_socket_perms;
# receive messages to be logged
allow syslogd_t self:unix_dgram_socket create_socket_perms;
allow syslogd_t self:unix_stream_socket create_stream_socket_perms;
allow syslogd_t self:unix_dgram_socket sendto;
allow syslogd_t self:fifo_file rw_file_perms;
allow syslogd_t self:udp_socket { connected_socket_perms connect };

# Create and bind to /dev/log or /var/run/log.
allow syslogd_t devlog_t:sock_file create_file_perms;
files_pid_filetrans(syslogd_t,devlog_t,sock_file)

# create/append log files.
allow syslogd_t var_log_t:dir rw_dir_perms;
allow syslogd_t var_log_t:file create_file_perms;
# Allow access for syslog-ng
allow syslogd_t var_log_t:dir { create setattr };

# manage temporary files
allow syslogd_t syslogd_tmp_t:file create_file_perms;
allow syslogd_t syslogd_tmp_t:dir create_dir_perms;
files_tmp_filetrans(syslogd_t,syslogd_tmp_t,{ dir file })

allow syslogd_t syslogd_var_run_t:file create_file_perms;
files_pid_filetrans(syslogd_t,syslogd_var_run_t,file)

# manage pid file
allow syslogd_t syslogd_var_run_t:file create_file_perms;
allow syslogd_t syslogd_var_run_t:dir rw_dir_perms;
files_pid_filetrans(syslogd_t,syslogd_var_run_t,file)

kernel_read_kernel_sysctls(syslogd_t)
kernel_read_proc_symlinks(syslogd_t)
# 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)

dev_filetrans(syslogd_t,devlog_t,sock_file)
dev_read_sysfs(syslogd_t)

fs_search_auto_mountpoints(syslogd_t)

term_dontaudit_use_console(syslogd_t)
# Allow syslog to a terminal
term_write_unallocated_ttys(syslogd_t)

# for sending messages to logged in users
init_read_utmp(syslogd_t)
init_dontaudit_write_utmp(syslogd_t)
term_write_all_user_ttys(syslogd_t)

corenet_raw_sendrecv_all_if(syslogd_t)
corenet_udp_sendrecv_all_if(syslogd_t)
corenet_raw_sendrecv_all_nodes(syslogd_t)
corenet_udp_sendrecv_all_nodes(syslogd_t)
corenet_udp_sendrecv_all_ports(syslogd_t)
corenet_non_ipsec_sendrecv(syslogd_t)
corenet_udp_bind_all_nodes(syslogd_t)
corenet_tcp_bind_syslogd_port(syslogd_t)
corenet_udp_bind_syslogd_port(syslogd_t)

fs_getattr_all_fs(syslogd_t)

init_use_fds(syslogd_t)
init_use_script_ptys(syslogd_t)

domain_use_interactive_fds(syslogd_t)

files_read_etc_files(syslogd_t)
files_read_etc_runtime_files(syslogd_t)
# /initrd is not umounted before minilog starts
files_dontaudit_search_isid_type_dirs(syslogd_t)

libs_use_ld_so(syslogd_t)
libs_use_shared_libs(syslogd_t)

# cjp: this doesnt make sense
logging_send_syslog_msg(syslogd_t)

sysnet_read_config(syslogd_t)

miscfiles_read_localization(syslogd_t)

userdom_dontaudit_use_unpriv_user_fds(syslogd_t)
userdom_dontaudit_search_sysadm_home_dirs(syslogd_t)

ifdef(`distro_suse',`
	# suse creates a /dev/log under /var/lib/stunnel for chrooted stunnel
	files_var_lib_filetrans(syslogd_t,devlog_t,sock_file)
')

ifdef(`targeted_policy',`
	allow syslogd_t var_run_t:fifo_file { ioctl read write };
	term_dontaudit_use_unallocated_ttys(syslogd_t)
	term_dontaudit_use_generic_ptys(syslogd_t)
	files_dontaudit_read_root_files(syslogd_t)
')

optional_policy(`
	inn_manage_log(syslogd_t)
')

optional_policy(`
	nis_use_ypbind(syslogd_t)
')

optional_policy(`
	nscd_socket_use(syslogd_t)
')

optional_policy(`
	seutil_sigchld_newrole(syslogd_t)
')

optional_policy(`
	udev_read_db(syslogd_t)
')

ifdef(`TODO',`
allow syslogd_t tmpfs_t:dir search;
dontaudit syslogd_t { userpty_type devpts_t }:chr_file getattr;

# log to the xconsole
allow syslogd_t xconsole_device_t:fifo_file { ioctl read write };

#
# Special case to handle crashes
#
allow syslogd_t { device_t file_t }:sock_file { getattr unlink };
') dnl end TODO