187 lines
4.9 KiB
Plaintext
187 lines
4.9 KiB
Plaintext
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policy_module(lvm,1.0)
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########################################
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#
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# Declarations
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#
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type lvm_t;
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type lvm_exec_t;
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init_system_domain(lvm_t,lvm_exec_t)
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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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domain_obj_id_change_exempt(lvm_t)
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role system_r types lvm_t;
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type lvm_etc_t;
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files_file_type(lvm_etc_t)
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type lvm_lock_t;
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files_lock_file(lvm_lock_t)
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type lvm_metadata_t;
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files_file_type(lvm_metadata_t)
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type lvm_tmp_t;
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files_tmp_file(lvm_tmp_t)
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########################################
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#
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# Local policy
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#
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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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dontaudit lvm_t self:capability sys_tty_config;
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allow lvm_t self:process { sigchld sigkill sigstop signull signal };
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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:file r_file_perms;
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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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allow lvm_t lvm_tmp_t:dir create_dir_perms;
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allow lvm_t lvm_tmp_t:file create_file_perms;
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files_create_tmp_files(lvm_t, lvm_tmp_t, { file dir })
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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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# LVM is split into many individual binaries
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can_exec(lvm_t, lvm_exec_t)
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# Creating lock files
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allow lvm_t lvm_lock_t:dir rw_dir_perms;
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allow lvm_t lvm_lock_t:file create_file_perms;
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files_create_lock_file(lvm_t,lvm_lock_t)
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allow lvm_t lvm_etc_t:file r_file_perms;
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allow lvm_t lvm_etc_t:lnk_file r_file_perms;
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# Write to /etc/lvm, /etc/lvmtab, /etc/lvmtab.d
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allow lvm_t lvm_etc_t:dir rw_dir_perms;
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allow lvm_t lvm_metadata_t:file create_file_perms;
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allow lvm_t lvm_metadata_t:dir rw_dir_perms;
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type_transition lvm_t lvm_etc_t:file lvm_metadata_t;
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files_create_etc_config(lvm_t,lvm_metadata_t,file)
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kernel_read_system_state(lvm_t)
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kernel_get_selinuxfs_mount_point(lvm_t)
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kernel_validate_context(lvm_t)
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kernel_compute_access_vector(lvm_t)
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kernel_compute_create_context(lvm_t)
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kernel_compute_relabel_context(lvm_t)
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kernel_compute_reachable_user_contexts(lvm_t)
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kernel_read_kernel_sysctl(lvm_t)
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dev_read_sysfs(lvm_t)
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# Read /sys/block. Device mapper metadata is kept there.
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dev_read_sysfs(sysfs_t)
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# Read system variables in /proc/sys
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kernel_read_kernel_sysctl(lvm_t)
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# it has no reason to need this
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kernel_dontaudit_getattr_core(lvm_t)
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dev_create_generic_chr_file(lvm_t)
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dev_read_rand(lvm_t)
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dev_read_urand(lvm_t)
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dev_rw_lvm_control(lvm_t)
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dev_manage_generic_symlinks(lvm_t)
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dev_relabel_dev_dirs(lvm_t)
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dev_manage_generic_blk_file(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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dev_dontaudit_getattr_all_chr_files(lvm_t)
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dev_dontaudit_getattr_all_blk_files(lvm_t)
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dev_dontaudit_getattr_generic_chr_file(lvm_t)
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dev_dontaudit_getattr_generic_blk_file(lvm_t)
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dev_dontaudit_getattr_generic_pipe(lvm_t)
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term_dontaudit_getattr_all_user_ttys(lvm_t)
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fs_getattr_xattr_fs(lvm_t)
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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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# 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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storage_create_fixed_disk_dev_entry(lvm_t)
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# Access raw devices and old /dev/lvm (c 109,0). Is this needed?
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storage_manage_fixed_disk(lvm_t)
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corecmd_search_sbin(lvm_t)
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corecmd_dontaudit_getattr_sbin_file(lvm_t)
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domain_use_wide_inherit_fd(lvm_t)
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files_search_var(lvm_t)
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files_read_generic_etc_files(lvm_t)
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files_read_etc_runtime_files(lvm_t)
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# for when /usr is not mounted:
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files_dontaudit_search_isid_type_dir(lvm_t)
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init_use_fd(lvm_t)
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init_dontaudit_getattr_initctl(lvm_t)
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init_use_script_pty(lvm_t)
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libs_use_ld_so(lvm_t)
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libs_use_shared_libs(lvm_t)
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logging_send_syslog_msg(lvm_t)
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miscfiles_read_localization(lvm_t)
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selinux_read_config(lvm_t)
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selinux_read_file_contexts(lvm_t)
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selinux_newrole_sigchld(lvm_t)
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ifdef(`distro_redhat',`
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# this is from the initrd:
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files_rw_isid_type_dir(lvm_t)
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')
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ifdef(`targeted_policy', `
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term_dontaudit_use_unallocated_tty(lvm_t)
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term_dontaudit_use_generic_pty(lvm_t)
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files_dontaudit_read_root_file(lvm_t)
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')
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optional_policy(`bootloader.te',`
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bootloader_rw_tmp_file(lvm_t)
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')
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optional_policy(`udev.te', `
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udev_read_db(lvm_t)
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')
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ifdef(`TODO',`
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allow lvm_t autofs_t:dir { search getattr };
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allow lvm_t default_context_t:dir search;
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allow lvm_t fixed_disk_device_t:blk_file { relabelfrom relabelto };
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# cjp: ? this has no effect since LVM does not
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# have lnk_file relabelto for anything else.
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allow lvm_t device_t:lnk_file { relabelfrom relabelto };
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dontaudit lvm_t var_run_t:dir getattr;
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optional_policy(`gnome-pty-helper.te', `
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allow lvm_t sysadm_gph_t:fd use;
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')
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optional_policy(`gpm.te', `
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dontaudit lvm_t gpmctl_t:sock_file getattr;
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')
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optional_policy(`rhgb.te', `
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allow $1_t rhgb_t:process sigchld;
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allow $1_t rhgb_t:fd use;
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allow $1_t rhgb_t:fifo_file { read write };
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')
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') dnl end TODO
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