125 lines
4.0 KiB
Plaintext
125 lines
4.0 KiB
Plaintext
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#DESC LVM - Linux Volume Manager
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#
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# Author: Michael Kaufman <walker@screwage.com>
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# X-Debian-Packages: lvm10 lvm2 lvm-common
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#
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#################################
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#
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# Rules for the lvm_t domain.
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#
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# lvm_t is the domain for LVM administration.
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# lvm_exec_t is the type of the corresponding programs.
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# lvm_etc_t is for read-only LVM configuration files.
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# lvm_metadata_t is the type of LVM metadata files in /etc that are
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# modified at runtime.
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#
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type lvm_vg_t, file_type, sysadmfile;
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type lvm_metadata_t, file_type, sysadmfile;
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type lvm_control_t, device_type, dev_fs;
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etcdir_domain(lvm)
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allow lvm_t var_t:dir search;
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lock_domain(lvm)
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allow lvm_t lvm_lock_t:dir rw_dir_perms;
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# needs privowner because it assigns the identity system_u to device nodes
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# but runs as the identity of the sysadmin
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daemon_base_domain(lvm, `, fs_domain, privowner')
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role sysadm_r types lvm_t;
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domain_auto_trans(sysadm_t, lvm_exec_t, lvm_t)
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# LVM will complain a lot if it cannot set its priority.
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allow lvm_t self:process setsched;
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allow lvm_t self:fifo_file rw_file_perms;
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allow lvm_t self:unix_dgram_socket create_socket_perms;
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r_dir_file(lvm_t, proc_t)
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allow lvm_t self:file r_file_perms;
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# Read system variables in /proc/sys
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read_sysctl(lvm_t)
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# Read /sys/block. Device mapper metadata is kept there.
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r_dir_file(lvm_t, sysfs_t)
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allow lvm_t fs_t:filesystem getattr;
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# Read configuration files in /etc.
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allow lvm_t { etc_t etc_runtime_t }:file { getattr read };
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# LVM creates block devices in /dev/mapper or /dev/<vg>
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# depending on its version
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file_type_auto_trans(lvm_t, device_t, fixed_disk_device_t, blk_file)
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# LVM(2) needs to create directores (/dev/mapper, /dev/<vg>)
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# and links from /dev/<vg> to /dev/mapper/<vg>-<lv>
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allow lvm_t device_t:dir create_dir_perms;
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allow lvm_t device_t:lnk_file create_lnk_perms;
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# /lib/lvm-<version> holds the actual LVM binaries (and symlinks)
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allow lvm_t lvm_exec_t:dir search;
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allow lvm_t lvm_exec_t:{ file lnk_file } r_file_perms;
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tmp_domain(lvm)
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allow lvm_t { random_device_t urandom_device_t }:chr_file { getattr read ioctl };
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# DAC overrides and mknod for modifying /dev entries (vgmknodes)
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allow lvm_t self:capability { dac_override ipc_lock sys_admin sys_nice mknod };
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# Write to /etc/lvm, /etc/lvmtab, /etc/lvmtab.d
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file_type_auto_trans(lvm_t, { etc_t lvm_etc_t }, lvm_metadata_t, file)
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allow lvm_t lvm_metadata_t:dir rw_dir_perms;
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# Inherit and use descriptors from init.
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allow lvm_t init_t:fd use;
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# LVM is split into many individual binaries
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can_exec(lvm_t, lvm_exec_t)
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# Access raw devices and old /dev/lvm (c 109,0). Is this needed?
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allow lvm_t fixed_disk_device_t:chr_file create_file_perms;
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# relabel devices
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allow lvm_t { default_context_t file_context_t }:dir search;
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allow lvm_t file_context_t:file { getattr read };
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can_getsecurity(lvm_t)
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allow lvm_t fixed_disk_device_t:blk_file { relabelfrom relabelto };
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allow lvm_t device_t:lnk_file { relabelfrom relabelto };
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# Access terminals.
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allow lvm_t { initrc_devpts_t admin_tty_type }:chr_file rw_file_perms;
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allow lvm_t devtty_t:chr_file rw_file_perms;
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ifdef(`gnome-pty-helper.te', `allow lvm_t sysadm_gph_t:fd use;')
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allow lvm_t privfd:fd use;
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allow lvm_t devpts_t:dir { search getattr read };
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read_locale(lvm_t)
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# LVM (vgscan) scans for devices by stating every file in /dev and applying a regex...
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dontaudit lvm_t device_type:{ chr_file blk_file } getattr;
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dontaudit lvm_t ttyfile:chr_file getattr;
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dontaudit lvm_t device_t:{ fifo_file dir chr_file blk_file } getattr;
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dontaudit lvm_t devpts_t:dir { getattr read };
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ifdef(`gpm.te', `
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dontaudit lvm_t gpmctl_t:sock_file getattr;
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')
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dontaudit lvm_t initctl_t:fifo_file getattr;
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allow lvm_t sbin_t:dir search;
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dontaudit lvm_t sbin_t:file getattr;
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allow lvm_t lvm_control_t:chr_file rw_file_perms;
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allow initrc_t lvm_control_t:chr_file { getattr read unlink };
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allow initrc_t device_t:chr_file create;
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dontaudit lvm_t var_run_t:dir getattr;
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# for when /usr is not mounted
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dontaudit lvm_t file_t:dir search;
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allow lvm_t tmpfs_t:dir r_dir_perms;
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r_dir_file(lvm_t, selinux_config_t)
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# it has no reason to need this
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dontaudit lvm_t proc_kcore_t:file getattr;
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