441 lines
13 KiB
Plaintext
441 lines
13 KiB
Plaintext
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policy_module(xdm,1.1.3)
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########################################
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#
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# Declarations
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#
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type xdm_t;
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# real declaration moved to mls until
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# range_transition works in loadable modules
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gen_require(`
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type xdm_exec_t;
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')
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init_domain(xdm_t,xdm_exec_t)
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init_daemon_domain(xdm_t,xdm_exec_t)
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type xsession_exec_t;
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files_type(xsession_exec_t)
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type xdm_xserver_tmp_t;
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files_type(xdm_xserver_tmp_t)
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type xdm_lock_t;
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files_lock_file(xdm_lock_t)
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type xdm_rw_etc_t;
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files_type(xdm_rw_etc_t)
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type xdm_var_lib_t;
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files_type(xdm_var_lib_t)
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type xdm_var_run_t;
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files_type(xdm_var_run_t)
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type xdm_tmp_t;
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files_tmp_file(xdm_tmp_t)
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type xdm_tmpfs_t;
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files_tmpfs_file(xdm_tmpfs_t)
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########################################
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#
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# Local policy
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#
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allow xdm_t self:capability { setgid setuid sys_resource kill sys_tty_config mknod chown dac_override dac_read_search fowner fsetid ipc_owner sys_nice sys_rawio net_bind_service };
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allow xdm_t self:process { setexec setpgid setsched setrlimit signal_perms };
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allow xdm_t self:fifo_file rw_file_perms;
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allow xdm_t self:shm create_shm_perms;
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allow xdm_t self:sem create_sem_perms;
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allow xdm_t self:unix_stream_socket { connectto create_stream_socket_perms };
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allow xdm_t self:unix_dgram_socket create_socket_perms;
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allow xdm_t self:tcp_socket create_stream_socket_perms;
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allow xdm_t self:udp_socket create_socket_perms;
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# Allow gdm to run gdm-binary
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can_exec(xdm_t, xdm_exec_t)
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# wdm has its own config dir /etc/X11/wdm
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# this is ugly, daemons should not create files under /etc!
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allow xdm_t xdm_rw_etc_t:dir rw_dir_perms;
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allow xdm_t xdm_rw_etc_t:file create_file_perms;
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allow xdm_t xdm_var_run_t:dir setattr;
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# for xdmctl
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allow xdm_t xdm_var_run_t:fifo_file create_file_perms;
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kernel_read_system_state(xdm_t)
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kernel_read_kernel_sysctl(xdm_t)
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corecmd_exec_shell(xdm_t)
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corecmd_exec_bin(xdm_t)
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corecmd_exec_sbin(xdm_t)
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corenet_tcp_sendrecv_generic_if(xdm_t)
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corenet_udp_sendrecv_generic_if(xdm_t)
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corenet_raw_sendrecv_generic_if(xdm_t)
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corenet_tcp_sendrecv_all_nodes(xdm_t)
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corenet_udp_sendrecv_all_nodes(xdm_t)
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corenet_raw_sendrecv_all_nodes(xdm_t)
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corenet_tcp_sendrecv_all_ports(xdm_t)
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corenet_udp_sendrecv_all_ports(xdm_t)
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corenet_non_ipsec_sendrecv(xdm_t)
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corenet_tcp_bind_all_nodes(xdm_t)
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corenet_udp_bind_all_nodes(xdm_t)
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corenet_tcp_connect_all_ports(xdm_t)
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# xdm tries to bind to biff_port_t
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corenet_dontaudit_tcp_bind_all_ports(xdm_t)
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dev_read_rand(xdm_t)
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dev_read_urand(xdm_t)
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dev_read_sysfs(xdm_t)
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dev_getattr_framebuffer(xdm_t)
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dev_setattr_framebuffer(xdm_t)
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dev_getattr_mouse(xdm_t)
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dev_setattr_mouse(xdm_t)
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dev_rw_apm_bios(xdm_t)
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dev_setattr_apm_bios(xdm_t)
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dev_rw_dri_dev(xdm_t)
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dev_rw_agp_dev(xdm_t)
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dev_getattr_xserver_misc_dev(xdm_t)
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dev_setattr_xserver_misc_dev(xdm_t)
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dev_getattr_misc(xdm_t)
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dev_setattr_misc(xdm_t)
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dev_dontaudit_rw_misc(xdm_t)
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dev_getattr_video_dev(xdm_t)
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dev_setattr_video_dev(xdm_t)
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dev_getattr_scanner(xdm_t)
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dev_setattr_scanner(xdm_t)
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dev_getattr_snd_dev(xdm_t)
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dev_setattr_snd_dev(xdm_t)
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dev_getattr_power_management(xdm_t)
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dev_setattr_power_management(xdm_t)
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domain_use_wide_inherit_fd(xdm_t)
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# Do not audit denied probes of /proc.
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domain_dontaudit_read_all_domains_state(xdm_t)
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files_read_etc_files(xdm_t)
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files_read_etc_runtime_files(xdm_t)
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files_exec_etc_files(xdm_t)
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files_list_mnt(xdm_t)
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# Read /usr/share/terminfo/l/linux and /usr/share/icons/default/index.theme...
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files_read_usr_files(xdm_t)
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# Poweroff wants to create the /poweroff file when run from xdm
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files_create_boot_flag(xdm_t)
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fs_getattr_all_fs(xdm_t)
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fs_search_auto_mountpoints(xdm_t)
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selinux_get_fs_mount(xdm_t)
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selinux_validate_context(xdm_t)
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selinux_compute_access_vector(xdm_t)
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selinux_compute_create_context(xdm_t)
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selinux_compute_relabel_context(xdm_t)
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selinux_compute_user_contexts(xdm_t)
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storage_dontaudit_read_fixed_disk(xdm_t)
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storage_dontaudit_write_fixed_disk(xdm_t)
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storage_dontaudit_setattr_fixed_disk(xdm_t)
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storage_dontaudit_raw_read_removable_device(xdm_t)
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storage_dontaudit_raw_write_removable_device(xdm_t)
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storage_dontaudit_setattr_removable_device(xdm_t)
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storage_dontaudit_rw_scsi_generic(xdm_t)
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term_setattr_console(xdm_t)
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term_dontaudit_use_console(xdm_t)
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term_use_unallocated_tty(xdm_t)
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term_setattr_unallocated_ttys(xdm_t)
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auth_rw_lastlog(xdm_t)
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auth_read_login_records(xdm_t)
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auth_append_login_records(xdm_t)
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auth_manage_pam_pid(xdm_t)
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auth_exec_pam(xdm_t)
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auth_manage_pam_console_data(xdm_t)
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init_rw_utmp(xdm_t)
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init_use_script_pty(xdm_t)
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# Run telinit->init to shutdown.
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init_exec(xdm_t)
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init_write_initctl(xdm_t)
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libs_use_ld_so(xdm_t)
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libs_use_shared_libs(xdm_t)
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libs_exec_lib_files(xdm_t)
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logging_send_syslog_msg(xdm_t)
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logging_read_generic_logs(xdm_t)
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miscfiles_read_localization(xdm_t)
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miscfiles_read_fonts(xdm_t)
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seutil_read_config(xdm_t)
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seutil_read_default_contexts(xdm_t)
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sysnet_read_config(xdm_t)
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userdom_dontaudit_use_unpriv_user_fd(xdm_t)
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userdom_dontaudit_search_sysadm_home_dir(xdm_t)
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# for .dmrc
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userdom_read_unpriv_user_home_files(xdm_t)
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# Search /proc for any user domain processes.
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userdom_read_all_userdomains_state(xdm_t)
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ifdef(`strict_policy',`
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allow xdm_t xdm_lock_t:file create_file_perms;
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files_filetrans_lock(xdm_t,xdm_lock_t)
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allow xdm_t xdm_tmp_t:dir create_dir_perms;
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allow xdm_t xdm_tmp_t:file create_file_perms;
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allow xdm_t xdm_tmp_t:file create_file_perms;
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files_filetrans_tmp(xdm_t, xdm_tmp_t, { file dir sock_file })
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allow xdm_t xdm_tmpfs_t:dir { read getattr lock search ioctl add_name remove_name write };
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allow xdm_t xdm_tmpfs_t:file { create ioctl read getattr lock write setattr append link unlink rename };
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allow xdm_t xdm_tmpfs_t:lnk_file { create read getattr setattr link unlink rename };
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allow xdm_t xdm_tmpfs_t:sock_file { create ioctl read getattr lock write setattr append link unlink rename };
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allow xdm_t xdm_tmpfs_t:fifo_file { create ioctl read getattr lock write setattr append link unlink rename };
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fs_filetrans_tmpfs(xdm_t,xdm_tmpfs_t,{ dir file lnk_file sock_file fifo_file })
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allow xdm_t xdm_var_lib_t:file create_file_perms;
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allow xdm_t xdm_var_lib_t:dir create_dir_perms;
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files_filetrans_var_lib(xdm_t,xdm_var_lib_t)
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allow xdm_t xdm_var_run_t:dir manage_dir_perms;
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allow xdm_t xdm_var_run_t:fifo_file manage_file_perms;
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files_filetrans_pid(xdm_t,xdm_var_run_t,{ dir fifo_file })
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domain_subj_id_change_exempt(xdm_t)
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domain_role_change_exempt(xdm_t)
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domain_obj_id_change_exempt(xdm_t)
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auth_domtrans_chk_passwd(xdm_t)
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auth_domtrans_pam_console(xdm_t)
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xserver_dontaudit_read_all_users_iceauth(xdm_t)
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optional_policy(`alsa',`
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alsa_domtrans(xdm_t)
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')
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')
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ifdef(`targeted_policy',`
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allow xdm_t self:process { execheap execmem };
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unconfined_domain_template(xdm_t)
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unconfined_domtrans(xdm_t)
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')
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optional_policy(`gpm',`
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# Talk to the console mouse server.
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gpm_stream_connect(xdm_t)
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gpm_setattr_gpmctl(xdm_t)
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')
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optional_policy(`hostname',`
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hostname_exec(xdm_t)
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')
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optional_policy(`loadkeys',`
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loadkeys_exec(xdm_t)
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')
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optional_policy(`locallogin',`
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locallogin_signull(xdm_t)
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')
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optional_policy(`nscd',`
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nscd_use_socket(xdm_t)
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')
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optional_policy(`selinuxutil',`
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seutil_sigchld_newrole(xdm_t)
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')
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optional_policy(`udev',`
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udev_read_db(xdm_t)
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')
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optional_policy(`userhelper',`
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userhelper_dontaudit_search_config(xdm_t)
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')
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optional_policy(`usermanage',`
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usermanage_read_crack_db(xdm_t)
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')
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ifdef(`TODO',`
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# cjp: TODO: integrate strict policy:
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allow initrc_t xdm_var_run_t:fifo_file unlink;
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# NB we do NOT allow xdm_xserver_t xdm_var_lib_t:dir, only access to an open
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# handle of a file inside the dir!!!
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allow xdm_xserver_t xdm_var_lib_t:file { getattr read };
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dontaudit xdm_xserver_t xdm_var_lib_t:dir search;
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allow xdm_xserver_t xdm_var_run_t:file { getattr read };
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allow xdm_t xdm_xserver_tmp_t:dir r_dir_perms;
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allow xdm_t xdm_xserver_t:process signal;
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allow xdm_t xdm_xserver_t:unix_stream_socket connectto;
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allow xdm_t xdm_xserver_tmp_t:sock_file rw_file_perms;
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allow xdm_t xdm_xserver_tmp_t:dir { setattr r_dir_perms };
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allow xdm_xserver_t xdm_t:process signal;
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# init script wants to check if it needs to update windowmanagerlist
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allow initrc_t xdm_rw_etc_t:file { getattr read };
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ifdef(`distro_suse', `
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# set permissions on /tmp/.X11-unix
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allow initrc_t xdm_tmp_t:dir setattr;
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')
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# Transition to user domains for user sessions.
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domain_trans(xdm_t, xsession_exec_t, unpriv_userdomain)
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allow unpriv_userdomain xdm_xserver_t:unix_stream_socket connectto;
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allow unpriv_userdomain xdm_xserver_t:shm r_shm_perms;
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allow unpriv_userdomain xdm_xserver_t:fd use;
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allow unpriv_userdomain xdm_xserver_tmpfs_t:file { getattr read };
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allow xdm_xserver_t unpriv_userdomain:shm rw_shm_perms;
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allow xdm_xserver_t unpriv_userdomain:fd use;
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# Do not audit user access to the X log files due to file handle inheritance
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dontaudit unpriv_userdomain xserver_log_t:file { write append };
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# gnome-session creates socket under /tmp/.ICE-unix/
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allow unpriv_userdomain xdm_tmp_t:dir rw_dir_perms;
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allow unpriv_userdomain xdm_tmp_t:sock_file create;
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# Allow xdm logins as sysadm_r:sysadm_t
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bool xdm_sysadm_login false;
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if (xdm_sysadm_login) {
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domain_trans(xdm_t, xsession_exec_t, sysadm_t)
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allow sysadm_t xdm_xserver_t:unix_stream_socket connectto;
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allow sysadm_t xdm_xserver_t:shm r_shm_perms;
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allow sysadm_t xdm_xserver_t:fd use;
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allow sysadm_t xdm_xserver_tmpfs_t:file { getattr read };
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allow xdm_xserver_t sysadm_t:shm rw_shm_perms;
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allow xdm_xserver_t sysadm_t:fd use;
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}
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# Label pid and temporary files with derived types.
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rw_dir_create_file(xdm_xserver_t, xdm_tmp_t)
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allow xdm_xserver_t xdm_tmp_t:sock_file create_file_perms;
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allow xdm_t xconsole_device_t:fifo_file { getattr setattr };
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allow xdm_t device_t:dir rw_dir_perms;
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can_resmgrd_connect(xdm_t)
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# Access xdm log files.
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file_type_auto_trans(xdm_t, var_log_t, xserver_log_t, file)
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allow xdm_t xserver_log_t:dir rw_dir_perms;
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allow xdm_t xserver_log_t:dir setattr;
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# Access /var/gdm/.gdmfifo.
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allow xdm_t xserver_log_t:fifo_file create_file_perms;
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allow { xdm_t unpriv_userdomain } xdm_xserver_t:unix_stream_socket connectto;
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allow { xdm_t unpriv_userdomain } xdm_xserver_t:shm rw_shm_perms;
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allow { xdm_t unpriv_userdomain } xdm_xserver_t:fd use;
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allow { xdm_t unpriv_userdomain } xdm_xserver_tmpfs_t:file { getattr read };
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allow xdm_xserver_t { xdm_t unpriv_userdomain }:shm rw_shm_perms;
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allow xdm_xserver_t { xdm_t unpriv_userdomain }:fd use;
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# Remove /tmp/.X11-unix/X0.
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allow xdm_t xdm_xserver_tmp_t:dir { remove_name write };
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allow xdm_t xdm_xserver_tmp_t:sock_file unlink;
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# Need to further investigate these permissions and
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# perhaps define derived types.
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allow xdm_t var_lib_t:dir { write search add_name remove_name create unlink };
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allow xdm_t var_lib_t:file { create write unlink };
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# Connect to xfs.
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ifdef(`xfs.te', `
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allow xdm_t xfs_tmp_t:dir search;
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allow xdm_t xfs_tmp_t:sock_file write;
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can_unix_connect(xdm_t, xfs_t)
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')
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# Signal any user domain.
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allow xdm_t userdomain:process signal_perms;
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# Do not audit denied attempts to access devices.
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dontaudit xdm_t devpts_t:dir search;
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# Do not audit attempts to write to index files under /usr
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dontaudit xdm_t usr_t:file write;
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# Do not audit user access to the X log files due to file handle inheritance
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dontaudit unpriv_userdomain xserver_log_t:file { write append };
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# Do not audit attempts to check whether user root has email
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dontaudit xdm_t { var_spool_t mail_spool_t }:dir search;
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dontaudit xdm_t mail_spool_t:file getattr;
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# Run the X server in a derived domain.
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xserver_domain(xdm)
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ifdef(`rhgb.te', `
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allow xdm_xserver_t ramfs_t:dir rw_dir_perms;
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allow xdm_xserver_t ramfs_t:file create_file_perms;
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allow rhgb_t xdm_xserver_t:process signal;
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')
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# Insert video drivers.
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allow insmod_t xserver_log_t:file write;
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allow insmod_t xdm_xserver_t:unix_stream_socket { read write };
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# Search /var/run.
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allow xdm_xserver_t var_run_t:dir search;
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# FIXME: After per user fonts are properly working
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# xdm_xserver_t may no longer have any reason
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# to read ROLE_home_t - examine this in more detail
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# (xauth?)
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# Search home directories.
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allow xdm_xserver_t home_root_t:dir search;
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allow xdm_xserver_t user_home_type:dir search;
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allow xdm_xserver_t user_home_type:file { getattr read };
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if (use_nfs_home_dirs) {
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allow { xdm_t xdm_xserver_t } autofs_t:dir { search getattr };
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allow { xdm_t xdm_xserver_t } nfs_t:dir create_dir_perms;
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allow { xdm_t xdm_xserver_t } nfs_t:{file lnk_file} create_file_perms;
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can_exec(xdm_t, nfs_t)
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}
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if (use_samba_home_dirs) {
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allow { xdm_t xdm_xserver_t } cifs_t:dir create_dir_perms;
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allow { xdm_t xdm_xserver_t } cifs_t:{file lnk_file} create_file_perms;
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can_exec(xdm_t, cifs_t)
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}
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ifdef(`support_polyinstatiation', `
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# xdm_t can polyinstantiate
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files_polyinstantiate_all(xdm_t)
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# xdm needs access for linking .X11-unix to poly /tmp
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allow xdm_t polymember:dir { add_name remove_name write };
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allow xdm_t polymember:lnk_file { create unlink };
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# xdm needs access for copying .Xauthority into new home
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allow xdm_t polymember:file { create getattr write };
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')
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#
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# Wants to delete .xsession-errors file
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#
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allow xdm_t user_home_type:file unlink;
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#
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# Should fix exec of pam_timestamp_check is not closing xdm file descriptor
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#
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allow pam_t xdm_t:fifo_file { getattr ioctl write };
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# VNC v4 module in X server
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corenet_tcp_bind_vnc_port(xdm_xserver_t)
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# Supress permission check on .ICE-unix
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dontaudit xdm_t ice_tmp_t:dir { getattr setattr };
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') dnl end TODO
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