path: root/policy/modules/system/lvm.te

policy_module(lvm, 1.9.1)

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

type clvmd_t;
type clvmd_exec_t;
init_daemon_domain(clvmd_t,clvmd_exec_t)

type clvmd_var_run_t;
files_pid_file(clvmd_var_run_t)

type lvm_t;
type lvm_exec_t;
init_system_domain(lvm_t,lvm_exec_t)
# needs privowner because it assigns the identity system_u to device nodes
# but runs as the identity of the sysadmin
domain_obj_id_change_exemption(lvm_t)
role system_r types lvm_t;

type lvm_etc_t;
files_type(lvm_etc_t)

type lvm_lock_t;
files_lock_file(lvm_lock_t)

type lvm_metadata_t;
files_type(lvm_metadata_t)

type lvm_var_lib_t;
files_type(lvm_var_lib_t)

type lvm_var_run_t;
files_pid_file(lvm_var_run_t)

type lvm_tmp_t;
files_tmp_file(lvm_tmp_t)

########################################
#
# Cluster LVM daemon local policy
#

allow clvmd_t self:capability { sys_admin mknod };
dontaudit clvmd_t self:capability sys_tty_config;
allow clvmd_t self:process signal_perms;
dontaudit clvmd_t self:process ptrace;
allow clvmd_t self:socket create_socket_perms;
allow clvmd_t self:fifo_file rw_fifo_file_perms;
allow clvmd_t self:unix_stream_socket { connectto create_stream_socket_perms };
allow clvmd_t self:tcp_socket create_stream_socket_perms;
allow clvmd_t self:udp_socket create_socket_perms;

manage_files_pattern(clvmd_t,clvmd_var_run_t,clvmd_var_run_t)
files_pid_filetrans(clvmd_t,clvmd_var_run_t,file)

read_files_pattern(clvmd_t,lvm_metadata_t,lvm_metadata_t)

kernel_read_kernel_sysctls(clvmd_t)
kernel_read_system_state(clvmd_t)
kernel_list_proc(clvmd_t)
kernel_read_proc_symlinks(clvmd_t)
kernel_search_debugfs(clvmd_t)
kernel_dontaudit_getattr_core_if(clvmd_t)

corecmd_exec_shell(clvmd_t)
corecmd_getattr_bin_files(clvmd_t)

corenet_all_recvfrom_unlabeled(clvmd_t)
corenet_all_recvfrom_netlabel(clvmd_t)
corenet_tcp_sendrecv_all_if(clvmd_t)
corenet_udp_sendrecv_all_if(clvmd_t)
corenet_raw_sendrecv_all_if(clvmd_t)
corenet_tcp_sendrecv_all_nodes(clvmd_t)
corenet_udp_sendrecv_all_nodes(clvmd_t)
corenet_raw_sendrecv_all_nodes(clvmd_t)
corenet_tcp_sendrecv_all_ports(clvmd_t)
corenet_udp_sendrecv_all_ports(clvmd_t)
corenet_tcp_bind_all_nodes(clvmd_t)
corenet_tcp_bind_reserved_port(clvmd_t)
corenet_dontaudit_tcp_bind_all_reserved_ports(clvmd_t)
corenet_sendrecv_generic_server_packets(clvmd_t)

dev_read_sysfs(clvmd_t)
dev_manage_generic_chr_files(clvmd_t)
dev_rw_lvm_control(clvmd_t)
dev_dontaudit_getattr_all_blk_files(clvmd_t)
dev_dontaudit_getattr_all_chr_files(clvmd_t)

files_read_etc_files(clvmd_t)
files_list_usr(clvmd_t)

fs_getattr_all_fs(clvmd_t)
fs_search_auto_mountpoints(clvmd_t)
fs_dontaudit_list_tmpfs(clvmd_t)
fs_dontaudit_read_removable_files(clvmd_t)

storage_dontaudit_getattr_removable_dev(clvmd_t)

domain_use_interactive_fds(clvmd_t)

storage_raw_read_fixed_disk(clvmd_t)

auth_use_nsswitch(clvmd_t)

logging_send_syslog_msg(clvmd_t)

miscfiles_read_localization(clvmd_t)

seutil_dontaudit_search_config(clvmd_t)
seutil_sigchld_newrole(clvmd_t)

userdom_dontaudit_use_unpriv_user_fds(clvmd_t)
userdom_dontaudit_search_user_home_dirs(clvmd_t)

lvm_domtrans(clvmd_t)
lvm_read_config(clvmd_t)

optional_policy(`
	ccs_stream_connect(clvmd_t)
')

optional_policy(`
	gpm_dontaudit_getattr_gpmctl(clvmd_t)
')

optional_policy(`
	ricci_dontaudit_rw_modcluster_pipes(clvmd_t)
	ricci_dontaudit_use_modcluster_fds(clvmd_t)
')

optional_policy(`
	udev_read_db(clvmd_t)
')

########################################
#
# LVM Local policy
#

# DAC overrides and mknod for modifying /dev entries (vgmknodes)
# rawio needed for dmraid
allow lvm_t self:capability { dac_override fowner ipc_lock sys_admin sys_nice mknod chown sys_resource sys_rawio };
dontaudit lvm_t self:capability sys_tty_config;
allow lvm_t self:process { sigchld sigkill sigstop signull signal };
# LVM will complain a lot if it cannot set its priority.
allow lvm_t self:process setsched;
allow lvm_t self:file rw_file_perms;
allow lvm_t self:fifo_file rw_file_perms;
allow lvm_t self:unix_dgram_socket create_socket_perms;
allow lvm_t self:netlink_kobject_uevent_socket create_socket_perms;

allow lvm_t clvmd_t:unix_stream_socket connectto;

manage_dirs_pattern(lvm_t,lvm_tmp_t,lvm_tmp_t)
manage_files_pattern(lvm_t,lvm_tmp_t,lvm_tmp_t)
files_tmp_filetrans(lvm_t, lvm_tmp_t, { file dir })

# /lib/lvm-<version> holds the actual LVM binaries (and symlinks)
read_files_pattern(lvm_t,lvm_exec_t,lvm_exec_t)
read_lnk_files_pattern(lvm_t,lvm_exec_t,lvm_exec_t)

# LVM is split into many individual binaries
can_exec(lvm_t, lvm_exec_t)

# Creating lock files
manage_files_pattern(lvm_t,lvm_lock_t,lvm_lock_t)
files_lock_filetrans(lvm_t,lvm_lock_t,file)

manage_dirs_pattern(lvm_t,lvm_var_lib_t,lvm_var_lib_t)
manage_files_pattern(lvm_t,lvm_var_lib_t,lvm_var_lib_t)
files_var_lib_filetrans(lvm_t,lvm_var_lib_t,{ dir file })

manage_dirs_pattern(lvm_t,lvm_var_run_t,lvm_var_run_t)
manage_files_pattern(lvm_t,lvm_var_run_t,lvm_var_run_t)
manage_sock_files_pattern(lvm_t,lvm_var_run_t,lvm_var_run_t)
files_pid_filetrans(lvm_t,lvm_var_run_t,{ file sock_file })

read_files_pattern(lvm_t,lvm_etc_t,lvm_etc_t)
read_lnk_files_pattern(lvm_t,lvm_etc_t,lvm_etc_t)
# Write to /etc/lvm, /etc/lvmtab, /etc/lvmtab.d
manage_files_pattern(lvm_t,lvm_metadata_t,lvm_metadata_t)
filetrans_pattern(lvm_t,lvm_etc_t,lvm_metadata_t,file)
files_etc_filetrans(lvm_t,lvm_metadata_t,file)

kernel_read_system_state(lvm_t)
kernel_read_kernel_sysctls(lvm_t)
# Read system variables in /proc/sys
kernel_read_kernel_sysctls(lvm_t)
# it has no reason to need this
kernel_dontaudit_getattr_core_if(lvm_t)

selinux_get_fs_mount(lvm_t)
selinux_validate_context(lvm_t)
selinux_compute_access_vector(lvm_t)
selinux_compute_create_context(lvm_t)
selinux_compute_relabel_context(lvm_t)
selinux_compute_user_contexts(lvm_t)

dev_create_generic_chr_files(lvm_t)
dev_delete_generic_dirs(lvm_t)
dev_read_rand(lvm_t)
dev_read_urand(lvm_t)
dev_rw_lvm_control(lvm_t)
dev_manage_generic_symlinks(lvm_t)
dev_relabel_generic_dev_dirs(lvm_t)
dev_manage_generic_blk_files(lvm_t)
# Read /sys/block. Device mapper metadata is kept there.
dev_read_sysfs(lvm_t)
# cjp: this has no effect since LVM does not
# have lnk_file relabelto for anything else.
# perhaps this should be blk_files?
dev_relabel_generic_symlinks(lvm_t)
# LVM (vgscan) scans for devices by stating every file in /dev and applying a regex...
dev_dontaudit_read_all_chr_files(lvm_t)
dev_dontaudit_read_all_blk_files(lvm_t)
dev_dontaudit_getattr_generic_chr_files(lvm_t)
dev_dontaudit_getattr_generic_blk_files(lvm_t)
dev_dontaudit_getattr_generic_pipes(lvm_t)
dev_create_generic_dirs(lvm_t)

fs_getattr_xattr_fs(lvm_t)
fs_search_auto_mountpoints(lvm_t)
fs_list_tmpfs(lvm_t)
fs_read_tmpfs_symlinks(lvm_t)
fs_dontaudit_read_removable_files(lvm_t)
fs_dontaudit_getattr_tmpfs_files(lvm_t)

storage_relabel_fixed_disk(lvm_t)
storage_dontaudit_read_removable_device(lvm_t)
# LVM creates block devices in /dev/mapper or /dev/<vg>
# depending on its version
# LVM(2) needs to create directores (/dev/mapper, /dev/<vg>)
# and links from /dev/<vg> to /dev/mapper/<vg>-<lv>
# cjp: need create interface here for fixed disk create
storage_dev_filetrans_fixed_disk(lvm_t)
# Access raw devices and old /dev/lvm (c 109,0).  Is this needed?
storage_manage_fixed_disk(lvm_t)

corecmd_exec_bin(lvm_t)
corecmd_exec_shell(lvm_t)

domain_use_interactive_fds(lvm_t)

files_read_etc_files(lvm_t)
files_read_etc_runtime_files(lvm_t)
# for when /usr is not mounted:
files_dontaudit_search_isid_type_dirs(lvm_t)

init_use_fds(lvm_t)
init_dontaudit_getattr_initctl(lvm_t)
init_use_script_ptys(lvm_t)

logging_send_syslog_msg(lvm_t)

miscfiles_read_localization(lvm_t)

seutil_read_config(lvm_t)
seutil_read_file_contexts(lvm_t)
seutil_search_default_contexts(lvm_t)
seutil_sigchld_newrole(lvm_t)

userdom_use_user_terminals(lvm_t)

ifdef(`distro_redhat',`
	# this is from the initrd:
	files_rw_isid_type_dirs(lvm_t)
')

optional_policy(`
	bootloader_rw_tmp_files(lvm_t)
')

optional_policy(`
	ccs_stream_connect(lvm_t)
')

optional_policy(`
	gpm_dontaudit_getattr_gpmctl(lvm_t)
')

optional_policy(`
	udev_read_db(lvm_t)
')