657 lines
17 KiB
Plaintext
657 lines
17 KiB
Plaintext
## <summary>X Windows Server</summary>
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template(`xserver_common_domain_template',`
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##############################
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#
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# Declarations
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#
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type $1_xserver_t;
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domain_type($1_xserver_t)
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type $1_xserver_tmp_t;
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files_tmp_file($1_xserver_tmp_t)
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type $1_xserver_tmpfs_t;
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files_tmpfs_file($1_xserver_tmpfs_t)
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##############################
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#
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# $1_xserver_t local policy
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#
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# setuid/setgid for the wrapper program to change UID
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# sys_rawio is for iopl access - should not be needed for frame-buffer
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# sys_admin, locking shared mem? chowning IPC message queues or semaphores?
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# admin of APM bios?
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# sys_nice is so that the X server can set a negative nice value
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# execheap needed until the X module loader is fixed.
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allow $1_xserver_t self:capability { dac_override fsetid setgid setuid ipc_owner sys_rawio sys_admin sys_nice sys_tty_config mknod net_bind_service };
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dontaudit $1_xserver_t self:capability chown;
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allow $1_xserver_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
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allow $1_xserver_t self:process { execmem execheap setsched };
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allow $1_xserver_t self:fd use;
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allow $1_xserver_t self:fifo_file rw_file_perms;
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allow $1_xserver_t self:sock_file r_file_perms;
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allow $1_xserver_t self:shm create_shm_perms;
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allow $1_xserver_t self:sem create_sem_perms;
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allow $1_xserver_t self:msgq create_msgq_perms;
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allow $1_xserver_t self:msg { send receive };
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allow $1_xserver_t self:unix_dgram_socket { create_socket_perms sendto };
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allow $1_xserver_t self:unix_stream_socket { create_stream_socket_perms connectto };
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allow $1_xserver_t self:tcp_socket create_stream_socket_perms;
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allow $1_xserver_t self:udp_socket create_socket_perms;
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allow $1_xserver_t $1_xserver_tmp_t:dir manage_dir_perms;
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allow $1_xserver_t $1_xserver_tmp_t:file manage_file_perms;
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allow $1_xserver_t $1_xserver_tmp_t:sock_file manage_file_perms;
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files_filetrans_tmp($1_xserver_t, $1_xserver_tmp_t, { file dir sock_file })
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allow $1_xserver_t xdm_xserver_tmp_t:dir rw_dir_perms;
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type_transition $1_xserver_t xdm_xserver_tmp_t:sock_file $1_xserver_tmp_t;
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allow $1_xserver_t $1_xserver_tmpfs_t:dir manage_dir_perms;
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allow $1_xserver_t $1_xserver_tmpfs_t:file manage_file_perms;
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allow $1_xserver_t $1_xserver_tmpfs_t:lnk_file create_lnk_perms;
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allow $1_xserver_t $1_xserver_tmpfs_t:sock_file manage_file_perms;
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allow $1_xserver_t $1_xserver_tmpfs_t:fifo_file manage_file_perms;
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fs_filetrans_tmpfs($1_xserver_t,$1_xserver_tmpfs_t,{ dir file lnk_file sock_file fifo_file })
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allow $1_xserver_t xkb_var_lib_t:dir rw_dir_perms;
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allow $1_xserver_t xkb_var_lib_t:file manage_file_perms;
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allow $1_xserver_t xkb_var_lib_t:lnk_file create_lnk_perms;
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files_search_var_lib($1_xserver_t)
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# Create files in /var/log with the xserver_log_t type.
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allow $1_xserver_t xserver_log_t:file manage_file_perms;
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allow $1_xserver_t xserver_log_t:dir r_dir_perms;
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logging_filetrans_log($1_xserver_t,xserver_log_t,file)
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kernel_read_system_state($1_xserver_t)
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kernel_read_device_sysctls($1_xserver_t)
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kernel_read_modprobe_sysctls($1_xserver_t)
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# Xorg wants to check if kernel is tainted
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kernel_read_kernel_sysctls($1_xserver_t)
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# Run helper programs in $1_xserver_t.
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corecmd_search_sbin($1_xserver_t)
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corecmd_exec_bin($1_xserver_t)
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corecmd_exec_shell($1_xserver_t)
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corenet_non_ipsec_sendrecv($1_xserver_t)
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corenet_tcp_sendrecv_generic_if($1_xserver_t)
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corenet_udp_sendrecv_generic_if($1_xserver_t)
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corenet_raw_sendrecv_generic_if($1_xserver_t)
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corenet_tcp_sendrecv_all_nodes($1_xserver_t)
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corenet_udp_sendrecv_all_nodes($1_xserver_t)
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corenet_raw_sendrecv_all_nodes($1_xserver_t)
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corenet_tcp_sendrecv_all_ports($1_xserver_t)
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corenet_udp_sendrecv_all_ports($1_xserver_t)
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corenet_tcp_bind_all_nodes($1_xserver_t)
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corenet_udp_bind_all_nodes($1_xserver_t)
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corenet_tcp_bind_xserver_port($1_xserver_t)
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corenet_tcp_connect_all_ports($1_xserver_t)
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dev_read_sysfs($1_xserver_t)
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dev_rw_mouse($1_xserver_t)
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dev_rw_mtrr($1_xserver_t)
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dev_rw_apm_bios($1_xserver_t)
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dev_rw_agp($1_xserver_t)
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dev_rw_framebuffer($1_xserver_t)
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dev_manage_dri_dev($1_xserver_t)
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dev_create_generic_dirs($1_xserver_t)
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dev_setattr_generic_dirs($1_xserver_t)
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# raw memory access is needed if not using the frame buffer
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dev_read_raw_memory($1_xserver_t)
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dev_write_raw_memory($1_xserver_t)
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# for other device nodes such as the NVidia binary-only driver
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dev_rw_xserver_misc($1_xserver_t)
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# read events - the synaptics touchpad driver reads raw events
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dev_rw_input_dev($1_xserver_t)
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files_read_etc_files($1_xserver_t)
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files_read_etc_runtime_files($1_xserver_t)
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# brought on by rhgb
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files_search_mnt($1_xserver_t)
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# for nscd
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files_dontaudit_search_pids($1_xserver_t)
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fs_getattr_xattr_fs($1_xserver_t)
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fs_search_nfs($1_xserver_t)
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fs_search_auto_mountpoints($1_xserver_t)
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term_setattr_unallocated_ttys($1_xserver_t)
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term_use_unallocated_ttys($1_xserver_t)
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libs_use_ld_so($1_xserver_t)
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libs_use_shared_libs($1_xserver_t)
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logging_send_syslog_msg($1_xserver_t)
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miscfiles_read_localization($1_xserver_t)
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miscfiles_read_fonts($1_xserver_t)
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modutils_domtrans_insmod($1_xserver_t)
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seutil_dontaudit_search_config($1_xserver_t)
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sysnet_read_config($1_xserver_t)
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optional_policy(`authlogin',`
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auth_search_pam_console_data($1_xserver_t)
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')
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optional_policy(`nis',`
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nis_use_ypbind($1_xserver_t)
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')
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optional_policy(`nscd',`
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nscd_socket_use($1_xserver_t)
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')
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optional_policy(`xfs',`
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xfs_stream_connect($1_xserver_t)
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')
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ifdef(`TODO',`
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ifdef(`distro_redhat',`
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ifdef(`rpm.te', `
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allow $1_xserver_t rpm_t:shm { unix_read unix_write read write associate getattr };
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allow $1_xserver_t rpm_tmpfs_t:file { read write };
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rpm_use_fd($1_xserver_t)
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')
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')
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') dnl end TODO
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')
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#######################################
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## <summary>
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## The per user domain template for the xserver module.
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## </summary>
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## <desc>
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## <p>
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## Define a derived domain for the X server when executed
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## by a user domain (e.g. via startx). See the xdm module
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## if using an X Display Manager.
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## </p>
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## <p>
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## This is invoked automatically for each user and
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## generally does not need to be invoked directly
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## by policy writers.
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## </p>
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## </desc>
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## <param name="prefix">
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## <summary>
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## The prefix of the user domain (e.g., user
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## is the prefix for user_t).
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## </summary>
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## </param>
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## <param name="user_domain">
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## <summary>
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## The type of the user domain.
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## </summary>
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## </param>
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## <param name="user_role">
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## <summary>
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## The role associated with the user domain.
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## </summary>
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## </param>
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#
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template(`xserver_per_userdomain_template',`
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##############################
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#
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# Declarations
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#
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xserver_common_domain_template($1)
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role $3 types $1_xserver_t;
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type $1_iceauth_t;
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domain_type($1_iceauth_t)
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role $3 types $1_iceauth_t;
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type $1_iceauth_home_t alias $1_iceauth_rw_t;
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files_poly_member($1_iceauth_home_t)
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userdom_home_file($1,$1_iceauth_home_t)
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type $1_xauth_t;
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domain_type($1_xauth_t)
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role $3 types $1_xauth_t;
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type $1_xauth_home_t alias $1_xauth_rw_t;
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files_poly_member($1_xauth_home_t)
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userdom_home_file($1,$1_xauth_home_t)
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type $1_xauth_tmp_t;
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files_tmp_file($1_xauth_tmp_t)
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##############################
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#
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# $1_xserver_t Local policy
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#
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domain_auto_trans($1_xserver_t, xauth_exec_t, $1_xauth_t)
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allow $1_xserver_t $1_xauth_t:fd use;
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allow $1_xauth_t $1_xserver_t:fd use;
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allow $1_xauth_t $1_xserver_t:fifo_file rw_file_perms;
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allow $1_xauth_t $1_xserver_t:process sigchld;
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allow $1_xserver_t $1_xauth_home_t:file { getattr read };
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domain_auto_trans($2, xserver_exec_t, $1_xserver_t)
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allow $2 $1_xserver_t:fd use;
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allow $1_xserver_t $2:fd use;
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allow $1_xserver_t $2:fifo_file rw_file_perms;
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allow $1_xserver_t $2:process { signal sigchld };
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allow $1_xserver_t $2:shm rw_shm_perms;
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allow $2 $1_xserver_tmp_t:dir r_dir_perms;
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allow $2 $1_xserver_tmp_t:sock_file rw_file_perms;
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allow $2 $1_xserver_t:unix_stream_socket connectto;
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allow $2 $1_xserver_tmpfs_t:file rw_file_perms;
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# Communicate via System V shared memory.
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allow $1_xserver_t $2:shm rw_shm_perms;
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allow $2 $1_xserver_t:shm rw_shm_perms;
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getty_use_fd($1_xserver_t)
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locallogin_use_fd($1_xserver_t)
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userdom_search_user_home($1,$1_xserver_t)
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userdom_use_user_tty($1,$1_xserver_t)
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userdom_setattr_user_tty($1,$1_xserver_t)
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userdom_rw_user_tmpfs_files($1,$1_xserver_t)
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optional_policy(`userhelper',`
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userhelper_search_config($1_xserver_t)
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')
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ifdef(`TODO',`
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# Read fonts
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read_fonts($1_xserver_t, $1)
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allow $1_t xdm_xserver_tmp_t:dir r_dir_perms;
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allow $1_t xdm_xserver_t:unix_stream_socket connectto;
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ifdef(`xdm.te', `
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allow $1_t xdm_tmp_t:sock_file unlink;
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allow $1_xserver_t xdm_var_run_t:dir search;
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')
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') dnl end TODO
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##############################
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#
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# $1_xauth_t Local policy
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#
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allow $1_xauth_t self:process signal;
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allow $1_xauth_t self:unix_stream_socket create_stream_socket_perms;
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allow $1_xauth_t $1_xauth_home_t:file manage_file_perms;
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userdom_filetrans_user_home_dir($1,$1_xauth_t,$1_xauth_home_t,file)
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allow $1_xauth_t $1_xauth_tmp_t:dir create_dir_perms;
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allow $1_xauth_t $1_xauth_tmp_t:file create_file_perms;
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files_filetrans_tmp($1_xauth_t, $1_xauth_tmp_t, { file dir })
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domain_auto_trans($2, xauth_exec_t, $1_xauth_t)
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allow $2 $1_xauth_t:fd use;
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allow $1_xauth_t $2:fd use;
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allow $1_xauth_t $2:fifo_file rw_file_perms;
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allow $1_xauth_t $2:process sigchld;
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allow $2 $1_xauth_t:process signal;
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# allow ps to show xauth
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allow $2 $1_xauth_t:dir { search getattr read };
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allow $2 $1_xauth_t:{ file lnk_file } { read getattr };
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allow $2 $1_xauth_t:process getattr;
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# We need to suppress this denial because procps tries to access
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# /proc/pid/environ and this now triggers a ptrace check in recent kernels
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# (2.4 and 2.6). Might want to change procps to not do this, or only if
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# running in a privileged domain.
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dontaudit $2 $1_xauth_t:process ptrace;
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allow $2 $1_xauth_home_t:file manage_file_perms;
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allow $2 $1_xauth_home_t:file { relabelfrom relabelto };
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allow xdm_t $1_xauth_home_t:file manage_file_perms;
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userdom_filetrans_user_home_dir($1,xdm_t,$1_xauth_home_t,file)
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domain_use_wide_inherit_fd($1_xauth_t)
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files_read_etc_files($1_xauth_t)
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files_search_pids($1_xauth_t)
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fs_getattr_xattr_fs($1_xauth_t)
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fs_search_auto_mountpoints($1_xauth_t)
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# cjp: why?
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term_use_ptmx($1_xauth_t)
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libs_use_ld_so($1_xauth_t)
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libs_use_shared_libs($1_xauth_t)
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sysnet_dns_name_resolve($1_xauth_t)
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userdom_use_user_terminals($1,$1_xauth_t)
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userdom_read_user_tmp_files($1,$1_xauth_t)
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tunable_policy(`use_nfs_home_dirs',`
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fs_manage_nfs_files($1_xauth_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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fs_manage_cifs_files($1_xauth_t)
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')
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optional_policy(`nis',`
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nis_use_ypbind($1_xauth_t)
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')
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optional_policy(`ssh',`
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ssh_sigchld($1_xauth_t)
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ssh_read_pipes($1_xauth_t)
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ssh_dontaudit_rw_tcp_sockets($1_xauth_t)
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')
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##############################
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#
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# $1_iceauth_t Local policy
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#
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domain_auto_trans($2, iceauth_exec_t, $1_iceauth_t)
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allow $2 $1_iceauth_t:fd use;
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allow $1_iceauth_t $2:fd use;
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allow $1_iceauth_t $2:fifo_file rw_file_perms;
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allow $1_iceauth_t $2:process sigchld;
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allow $1_iceauth_t $1_iceauth_home_t:file manage_file_perms;
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userdom_filetrans_user_home_dir($1,$1_iceauth_t,$1_iceauth_home_t,file)
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# allow ps to show iceauth
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allow $2 $1_iceauth_t:dir { search getattr read };
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allow $2 $1_iceauth_t:{ file lnk_file } { read getattr };
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allow $2 $1_iceauth_t:process getattr;
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# We need to suppress this denial because procps tries to access
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# /proc/pid/environ and this now triggers a ptrace check in recent kernels
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# (2.4 and 2.6). Might want to change procps to not do this, or only if
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# running in a privileged domain.
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dontaudit $2 $1_iceauth_t:process ptrace;
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allow $2 $1_iceauth_home_t:file manage_file_perms;
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allow $2 $1_iceauth_home_t:file { relabelfrom relabelto };
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fs_search_auto_mountpoints($1_iceauth_t)
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libs_use_ld_so($1_iceauth_t)
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libs_use_shared_libs($1_iceauth_t)
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userdom_use_user_terminals($1,$1_iceauth_t)
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tunable_policy(`use_nfs_home_dirs',`
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fs_manage_nfs_files($1_iceauth_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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fs_manage_cifs_files($1_iceauth_t)
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')
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')
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########################################
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## <summary>
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## Transition to a user Xauthority domain.
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## </summary>
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## <desc>
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## <p>
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## Transition to a user Xauthority domain.
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## </p>
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## <p>
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## This is a templated interface, and should only
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## be called from a per-userdomain template.
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## </p>
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## </desc>
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## <param name="userdomain_prefix">
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## <summary>
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## The prefix of the user domain (e.g., user
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## is the prefix for user_t).
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## </summary>
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## </param>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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template(`xserver_domtrans_user_xauth',`
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gen_require(`
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type $1_xauth_t, xauth_exec_t;
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')
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domain_auto_trans($2, xauth_exec_t, $1_xauth_t)
|
|
allow $2 $1_xauth_t:fd use;
|
|
allow $1_xauth_t $2:fd use;
|
|
allow $1_xauth_t $2:fifo_file rw_file_perms;
|
|
allow $1_xauth_t $2:process sigchld;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Connect to XDM over a unix domain
|
|
## stream socket.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_stream_connect_xdm',`
|
|
gen_require(`
|
|
type xdm_t;
|
|
')
|
|
|
|
allow $1 xdm_t:unix_stream_socket connectto;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Read xdm-writable configuration files.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_read_xdm_rw_config',`
|
|
gen_require(`
|
|
type xdm_rw_etc_t;
|
|
')
|
|
|
|
files_search_etc($1)
|
|
allow $1 xdm_rw_etc_t:dir { getattr read };
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Set the attributes of XDM temporary directories.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_setattr_xdm_tmp_dirs',`
|
|
gen_require(`
|
|
type xdm_tmp_t;
|
|
')
|
|
|
|
allow $1 xdm_tmp_t:dir setattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Create a named socket in a XDM
|
|
## temporary directory.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_create_xdm_tmp_sockets',`
|
|
gen_require(`
|
|
type xdm_tmp_t;
|
|
')
|
|
|
|
files_search_tmp($1)
|
|
allow $1 xdm_tmp_t:dir ra_dir_perms;
|
|
allow $1 xdm_tmp_t:sock_file create;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Read XDM pid files.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_read_xdm_pid',`
|
|
gen_require(`
|
|
type xdm_var_run_t;
|
|
')
|
|
|
|
files_search_pids($1)
|
|
allow $1 xdm_var_run_t:file r_file_perms;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Execute the X server in the XDM X server domain.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_domtrans_xdm_xserver',`
|
|
gen_require(`
|
|
type xdm_xserver_t, xserver_exec_t;
|
|
')
|
|
|
|
domain_auto_trans($1,xserver_exec_t,xdm_xserver_t)
|
|
|
|
allow $1 xdm_xserver_t:fd use;
|
|
allow xdm_xserver_t $1:fd use;
|
|
allow xdm_xserver_t $1:fifo_file rw_file_perms;
|
|
allow xdm_xserver_t $1:process sigchld;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Make an X session script an entrypoint for the specified domain.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## The domain for which the shell is an entrypoint.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_xsession_entry_type',`
|
|
gen_require(`
|
|
type xsession_exec_t;
|
|
')
|
|
|
|
domain_entry_file($1,xsession_exec_t)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Execute an X session in the target domain. This
|
|
## is an explicit transition, requiring the
|
|
## caller to use setexeccon().
|
|
## </summary>
|
|
## <desc>
|
|
## <p>
|
|
## Execute an Xsession in the target domain. This
|
|
## is an explicit transition, requiring the
|
|
## caller to use setexeccon().
|
|
## </p>
|
|
## <p>
|
|
## No interprocess communication (signals, pipes,
|
|
## etc.) is provided by this interface since
|
|
## the domains are not owned by this module.
|
|
## </p>
|
|
## </desc>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
## <param name="target_domain">
|
|
## <summary>
|
|
## The type of the shell process.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_xsession_spec_domtrans',`
|
|
gen_require(`
|
|
type xsession_exec_t;
|
|
')
|
|
|
|
domain_trans($1,xsession_exec_t,$2)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to write the X server
|
|
## log files.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain to not audit
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_dontaudit_write_log',`
|
|
gen_require(`
|
|
type xserver_log_t;
|
|
')
|
|
|
|
dontaudit $1 xserver_log_t:file { append write };
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to write the X server
|
|
## log files.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain to not audit
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`xserver_delete_log',`
|
|
gen_require(`
|
|
type xserver_log_t;
|
|
')
|
|
|
|
logging_search_logs($1)
|
|
allow $1 xserver_log_t:dir rw_dir_perms;
|
|
allow $1 xserver_log_t:file unlink;
|
|
')
|