Oreon-Lime-R2/selinux-policy/selinux-policy-bc228bd/selinux-policy-bc228bd0c249a9e4aa3dcf238c2b1bb138943b07/policy/modules/kernel/domain.te

712 lines
17 KiB
Text
Raw Normal View History

policy_module(domain, 1.11.0)
########################################
#
# Declarations
#
## <desc>
## <p>
## Allow all domains to use other domains file descriptors
## </p>
## </desc>
#
gen_tunable(domain_fd_use, true)
## <desc>
## <p>
## Allow all domains to execute in fips_mode
## </p>
## </desc>
#
gen_tunable(fips_mode, true)
## <desc>
## <p>
## Allow all domains to have the kernel load modules
## </p>
## </desc>
#
gen_tunable(domain_kernel_load_modules, false)
## <desc>
## <p>
## Control the ability to mmap a low area of the address space,
## as configured by /proc/sys/vm/mmap_min_addr.
## </p>
## </desc>
gen_tunable(mmap_low_allowed, false)
## <desc>
## <p>
## Allow all domains write to kmsg_device,
## while kernel is executed with systemd.log_target=kmsg parameter.
## </p>
## </desc>
gen_tunable(domain_can_write_kmsg, false)
## <desc>
## <p>
## Allow any process to mmap any file on system with attribute file_type.
## </p>
## </desc>
gen_tunable(domain_can_mmap_files, false)
# Mark process types as domains
attribute domain;
attribute named_filetrans_domain;
# Transitions only allowed from domains to other domains
neverallow domain ~domain:process { transition dyntransition };
# Domains that are unconfined
attribute unconfined_domain_type;
# Domains that can mmap low memory.
attribute mmap_low_domain_type;
neverallow { domain -mmap_low_domain_type } self:memprotect mmap_zero;
# Domains that can set their current context
# (perform dynamic transitions)
attribute set_curr_context;
# enabling setcurrent breaks process tranquility. If you do not
# know what this means or do not understand the implications of a
# dynamic transition, you should not be using it!!!
neverallow { domain -set_curr_context } self:process setcurrent;
# entrypoint executables
attribute entry_type;
# widely-inheritable file descriptors
attribute privfd;
#
# constraint related attributes
#
# [1] types that can change SELinux identity on transition
attribute can_change_process_identity;
# [2] types that can change SELinux role on transition
attribute can_change_process_role;
# [3] types that can change the SELinux identity on a filesystem
# object or a socket object on a create or relabel
attribute can_change_object_identity;
# [3] types that can change to system_u:system_r
attribute can_system_change;
# [4] types that have attribute 1 can change the SELinux
# identity only if the target domain has this attribute.
# Types that have attribute 2 can change the SELinux role
# only if the target domain has this attribute.
attribute process_user_target;
# For cron jobs
# [5] types used for cron daemons
attribute cron_source_domain;
# [6] types used for cron jobs
attribute cron_job_domain;
# [7] types that are unconditionally exempt from
# SELinux identity and role change constraints
attribute process_uncond_exempt; # add userhelperdomain to this one
neverallow { domain unlabeled_t } ~{ domain unlabeled_t }:process *;
neverallow ~{ domain unlabeled_t } *:process *;
########################################
#
# Rules applied to all domains
#
allow domain domain:anon_inode common_anon_inode_perms;
# read /proc/(pid|self) entries
allow domain self:dir { list_dir_perms watch_dir_perms };
allow domain self:lnk_file { read_lnk_file_perms lock ioctl };
allow domain self:file rw_file_perms;
allow domain self:fifo_file rw_fifo_file_perms;
allow domain self:sem create_sem_perms;
allow domain self:shm create_shm_perms;
kernel_getattr_proc(domain)
kernel_read_proc_symlinks(domain)
kernel_read_crypto_sysctls(domain)
kernel_read_usermodehelper_state(domain)
kernel_read_vm_overcommit_sysctls(domain)
# Every domain gets the key ring, so we should default
# to no one allowed to look at it; afs kernel support creates
# a keyring
kernel_dontaudit_search_key(domain)
kernel_dontaudit_link_key(domain)
kernel_dontaudit_search_debugfs(domain)
# create child processes in the domain
allow domain self:process { getcap fork getsched signal_perms };
# Use trusted objects in /dev
dev_read_cpu_online(domain)
dev_rw_null(domain)
dev_rw_zero(domain)
term_use_controlling_term(domain)
# Allow all domains stat /sys. It is needed by services reading hardware
# state information, but there is no harm to allow it to all domains in general.
dev_getattr_sysfs_fs(domain)
# Allow all domains to read /dev/urandom. It is needed by all apps/services
# linked to libgcrypt. There is no harm to allow it by default.
dev_read_urand(domain)
# list the root directory
files_list_root(domain)
# allow all domains to search through base_file_type directory, since users
# sometimes place labels within these directories. (samba_share_t) for example.
files_search_base_file_types(domain)
files_read_inherited_tmp_files(domain)
files_append_inherited_tmp_files(domain)
files_mmap_usr_files(domain)
files_read_all_base_ro_files(domain)
files_dontaudit_getattr_kernel_symbol_table(domain)
files_dontaudit_map_all_dirs(domain)
fs_dontaudit_map_all_dirs(domain)
# All executables should be able to search the directory they are in
corecmd_search_bin(domain)
optional_policy(`
userdom_search_admin_dir(domain)
')
tunable_policy(`domain_can_write_kmsg',`
dev_write_kmsg(domain)
')
tunable_policy(`domain_kernel_load_modules',`
kernel_request_load_module(domain)
')
tunable_policy(`domain_can_mmap_files',`
allow domain file_type:file map;
allow domain file_type:chr_file map;
allow domain file_type:blk_file map;
allow domain file_type:lnk_file map;
')
ifdef(`hide_broken_symptoms',`
# This check is in the general socket
# listen code, before protocol-specific
# listen function is called, so bad calls
# to listen on UDP sockets should be silenced
dontaudit domain self:udp_socket listen;
')
tunable_policy(`global_ssp',`
# enable reading of urandom for all domains:
# this should be enabled when all programs
# are compiled with ProPolice/SSP
# stack smashing protection.
dev_read_urand(domain)
')
optional_policy(`
afs_rw_cache(domain)
')
optional_policy(`
libs_use_ld_so(domain)
libs_use_shared_libs(domain)
libs_read_lib_files(domain)
')
optional_policy(`
miscfiles_read_localization(domain)
miscfiles_read_man_pages(domain)
miscfiles_read_fonts(domain)
')
optional_policy(`
setrans_translate_context(domain)
')
# xdm passes an open file descriptor to xsession-errors.log which is then audited by all confined domains.
optional_policy(`
xserver_dontaudit_use_xdm_fds(domain)
xserver_dontaudit_rw_xdm_pipes(domain)
xserver_dontaudit_append_xdm_home_files(domain)
xserver_dontaudit_write_log(domain)
xserver_dontaudit_xdm_rw_stream_sockets(domain)
')
########################################
#
# Unconfined access to this module
#
# unconfined access also allows constraints, but this
# is handled in the interface as typeattribute cannot
# be used on an attribute.
# allow special io_uring features
allow unconfined_domain_type domain:io_uring override_creds;
allow unconfined_domain_type self:io_uring sqpoll;
files_io_uring_cmd_on_all_files(unconfined_domain_type)
# allow using the user_namespace class
allow unconfined_domain_type self:user_namespace create;
# Use bpf tools
allow unconfined_domain_type domain:bpf { map_create map_read map_write prog_load prog_run };
allow unconfined_domain_type self:lnk_file setattr;
# Use/sendto/connectto sockets created by any domain.
allow unconfined_domain_type self:cap_userns all_cap_userns_perms;
allow unconfined_domain_type domain:{ socket_class_set socket key_socket } *;
allow unconfined_domain_type domain:system all_system_perms;
# Use descriptors and pipes created by any domain.
allow unconfined_domain_type domain:fd use;
allow unconfined_domain_type domain:fifo_file rw_file_perms;
allow unconfined_domain_type unconfined_domain_type:dbus send_msg;
# Act upon any other process.
allow unconfined_domain_type domain:process ~{ ptrace transition dyntransition execmem execstack execheap };
tunable_policy(`deny_ptrace',`',`
allow unconfined_domain_type domain:process ptrace;
')
# Create/access any System V IPC objects.
allow unconfined_domain_type domain:{ sem msgq shm } *;
allow unconfined_domain_type domain:msg { send receive };
# For /proc/pid
allow unconfined_domain_type domain:dir { list_dir_perms watch_dir_perms };
allow unconfined_domain_type domain:file manage_file_perms;
allow unconfined_domain_type domain:lnk_file { read_lnk_file_perms ioctl lock };
# act on all domains keys
allow unconfined_domain_type domain:key *;
allow unconfined_domain_type domain:perf_event rw_inherited_perf_event_perms;
kernel_manage_perf_event(unconfined_domain_type)
corenet_filetrans_all_named_dev(named_filetrans_domain)
dev_filetrans_all_named_dev(named_filetrans_domain)
# receive from all domains over labeled networking
domain_all_recvfrom_all_domains(unconfined_domain_type)
files_filetrans_named_content(named_filetrans_domain)
files_filetrans_system_conf_named_files(named_filetrans_domain)
files_config_all_files(unconfined_domain_type)
dev_config_null_dev_service(unconfined_domain_type)
optional_policy(`
miscfiles_filetrans_named_content_letsencrypt(unconfined_domain_type)
')
optional_policy(`
kdump_filetrans_named_content(unconfined_domain_type)
')
optional_policy(`
fstools_filetrans_named_content_fsadm(named_filetrans_domain)
')
optional_policy(`
ipa_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
locallogin_filetrans_home_content(named_filetrans_domain)
')
optional_policy(`
mandb_filetrans_named_home_content(named_filetrans_domain)
')
optional_policy(`
ppp_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
snapper_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
seutil_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
wine_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
storage_filetrans_all_named_dev(named_filetrans_domain)
')
term_filetrans_all_named_dev(named_filetrans_domain)
optional_policy(`
init_disable_services(unconfined_domain_type)
init_enable_services(unconfined_domain_type)
init_reload_services(unconfined_domain_type)
init_status(unconfined_domain_type)
init_reboot(unconfined_domain_type)
init_halt(unconfined_domain_type)
init_undefined(unconfined_domain_type)
init_filetrans_named_content(named_filetrans_domain)
')
# Allow manage transient unit files
optional_policy(`
init_start_transient_unit(unconfined_domain_type)
init_stop_transient_unit(unconfined_domain_type)
init_status_transient_unit(unconfined_domain_type)
init_reload_transient_unit(unconfined_domain_type)
init_enable_transient_unit(unconfined_domain_type)
init_disable_transient_unit(unconfined_domain_type)
')
optional_policy(`
libs_filetrans_named_content(unconfined_domain_type)
')
optional_policy(`
auth_filetrans_named_content(named_filetrans_domain)
auth_filetrans_admin_home_content(named_filetrans_domain)
')
optional_policy(`
libs_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
logging_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
miscfiles_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
abrt_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
alsa_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
apache_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
apcupsd_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
bootloader_filetrans_config(named_filetrans_domain)
')
optional_policy(`
clock_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
cups_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
cvs_filetrans_home_content(named_filetrans_domain)
')
optional_policy(`
dbus_filetrans_named_content_system(named_filetrans_domain)
')
optional_policy(`
devicekit_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
dnsmasq_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
gnome_filetrans_admin_home_content(named_filetrans_domain)
')
optional_policy(`
iscsi_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
iptables_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
kerberos_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
mta_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
mplayer_filetrans_home_content(named_filetrans_domain)
')
optional_policy(`
modules_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
mysql_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
networkmanager_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
ntp_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
nx_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
plymouthd_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
postgresql_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
postfix_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
prelink_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
pulseaudio_filetrans_admin_home_content(named_filetrans_domain)
')
optional_policy(`
quota_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
rpcbind_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
rsync_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
sysnet_filetrans_named_content(named_filetrans_domain)
sysnet_filetrans_named_content_ifconfig(named_filetrans_domain)
sysnet_filetrans_named_content(unconfined_domain_type)
sysnet_filetrans_named_content_ifconfig(unconfined_domain_type)
')
optional_policy(`
systemd_chat_resolved(domain)
systemd_login_status(unconfined_domain_type)
systemd_login_reboot(unconfined_domain_type)
systemd_login_halt(unconfined_domain_type)
systemd_login_undefined(unconfined_domain_type)
systemd_resolved_write_pid_sock_files(domain)
systemd_filetrans_named_content(named_filetrans_domain)
systemd_filetrans_named_hostname(named_filetrans_domain)
systemd_filetrans_home_content(named_filetrans_domain)
systemd_dontaudit_write_inherited_logind_sessions_pipes(domain)
')
optional_policy(`
sssd_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
tftp_filetrans_named_content(named_filetrans_domain)
')
optional_policy(`
userdom_user_home_dir_filetrans_user_home_content(named_filetrans_domain, { dir file lnk_file fifo_file sock_file })
')
optional_policy(`
ssh_filetrans_admin_home_content(named_filetrans_domain)
ssh_filetrans_keys(unconfined_domain_type)
')
optional_policy(`
userdom_filetrans_named_user_tmp_files(named_filetrans_domain)
')
optional_policy(`
virt_filetrans_named_content(named_filetrans_domain)
')
selinux_getattr_fs(domain)
selinux_search_fs(domain)
selinux_dontaudit_read_fs(domain)
optional_policy(`
seutil_dontaudit_read_config(domain)
')
optional_policy(`
init_sigchld(domain)
init_signull(domain)
init_read_machineid(domain)
')
ifdef(`distro_redhat',`
files_search_mnt(domain)
')
# these seem questionable:
optional_policy(`
abrt_domtrans_helper(domain)
abrt_read_pid_files(domain)
abrt_read_state(domain)
abrt_signull(domain)
abrt_append_cache(domain)
abrt_rw_fifo_file(domain)
')
optional_policy(`
# A workaround to handle additional permissions check
# introduced as an involuntary result of a kernel change
automount_write_pipes(domain)
')
optional_policy(`
sosreport_append_tmp_files(domain)
')
tunable_policy(`domain_fd_use',`
# Allow all domains to use fds past to them
allow domain domain:fd use;
')
optional_policy(`
cron_dontaudit_write_system_job_tmp_files(domain)
cron_rw_pipes(domain)
cron_rw_system_job_pipes(domain)
')
optional_policy(`
devicekit_dbus_chat_power(domain)
')
ifdef(`hide_broken_symptoms',`
dontaudit domain self:capability { net_admin };
dontaudit domain self:udp_socket listen;
allow domain domain:key { link search };
dontaudit domain domain:socket_class_set { read write };
dontaudit domain self:capability sys_module;
')
optional_policy(`
ica_filetrans_named_content(domain)
')
optional_policy(`
ipsec_match_default_spd(domain)
')
optional_policy(`
miscfiles_read_pkcs11_modules(domain)
')
optional_policy(`
ifdef(`hide_broken_symptoms',`
afs_rw_udp_sockets(domain)
')
')
optional_policy(`
rolekit_dbus_chat(domain)
')
optional_policy(`
vmtools_unconfined_dbus_chat(domain)
')
optional_policy(`
ssh_rw_pipes(domain)
')
optional_policy(`
unconfined_dontaudit_rw_pipes(domain)
unconfined_server_dontaudit_rw_pipes(domain)
unconfined_sigchld(domain)
')
# broken kernel
dontaudit can_change_object_identity can_change_object_identity:key link;
dontaudit domain self:file create;
ifdef(`distro_redhat',`
optional_policy(`
unconfined_use_fds(domain)
')
')
# these seem questionable:
optional_policy(`
puppet_rw_tmp(domain)
')
dontaudit domain domain:process { noatsecure siginh rlimitinh } ;
optional_policy(`
rkhunter_append_lib_files(domain)
')
optional_policy(`
rpm_rw_script_inherited_pipes(domain)
rpm_use_fds(domain)
rpm_read_pipes(domain)
rpm_search_log(domain)
rpm_append_tmp_files(domain)
rpm_dontaudit_leaks(domain)
rpm_read_script_tmp_files(domain)
rpm_named_filetrans(named_filetrans_domain)
')
tunable_policy(`fips_mode',`
allow domain self:fifo_file manage_fifo_file_perms;
kernel_read_kernel_sysctls(domain)
')
optional_policy(`
tunable_policy(`fips_mode',`
prelink_exec(domain)
')
')
optional_policy(`
container_spc_stream_connect(domain)
')