Chrome/Chromium patches

Russell Coker <[email protected]>
Newsgroups org.kernel.vger.selinux-refpolicy
Message-ID <4241549.o4G3l8VaYd@xev>
The attached patch against the git refpolicy from 3 days ago makes Chrome work 
with Pulseaudio, DRI, Flash, and lots of little things.

Adds tunables chromium_exec_plugins and xserver_allow_dri.

I think this is ready to merge with the names of the tunables and interfaces 
being the only possible changes needed.

-- 
My Main Blog         http://etbe.coker.com.au/
My Documents Blog    http://doc.coker.com.au/
chromium.diff (text/x-patch, 10.3 KB)
Chromium and DRI policy

Index: refpolicy-2.20200209/policy/modules/apps/chromium.te
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/apps/chromium.te
+++ refpolicy-2.20200209/policy/modules/apps/chromium.te
@@ -39,6 +39,13 @@ gen_tunable(chromium_bind_tcp_unreserved
 ## </desc>
 gen_tunable(chromium_rw_usb_dev, false)
 
+## <desc>
+## <p>
+## Allow chromium to execute it's config (for plugins like Flash)
+## </p>
+## </desc>
+gen_tunable(chromium_exec_plugins, false)
+
 type chromium_t;
 domain_dyntrans_type(chromium_t)
 
@@ -63,6 +70,9 @@ type chromium_tmpfs_t;
 userdom_user_tmpfs_file(chromium_tmpfs_t)
 optional_policy(`
 	pulseaudio_tmpfs_content(chromium_tmpfs_t)
+	pulseaudio_rw_tmpfs_files(chromium_t)
+	pulseaudio_stream_connect(chromium_t)
+	pulseaudio_use_fds(chromium_t)
 ')
 
 type chromium_xdg_config_t;
@@ -77,7 +87,9 @@ xdg_cache_content(chromium_xdg_cache_t)
 #
 
 # execmem for load in plugins
-allow chromium_t self:process { execmem getsched getcap setcap setrlimit setsched sigkill signal };
+allow chromium_t self:process { execmem getsched getcap setcap setrlimit setsched sigkill signal signull };
+allow chromium_t self:dir { write add_name };
+allow chromium_t self:file create;
 allow chromium_t self:fifo_file rw_fifo_file_perms;
 allow chromium_t self:sem create_sem_perms;
 allow chromium_t self:netlink_kobject_uevent_socket client_stream_socket_perms;
@@ -96,6 +108,7 @@ allow chromium_t chromium_renderer_t:uni
 
 allow chromium_t chromium_sandbox_t:unix_dgram_socket { getattr read write };
 allow chromium_t chromium_sandbox_t:unix_stream_socket { getattr read write };
+allow chromium_t chromium_sandbox_t:file read_file_perms;
 
 allow chromium_t chromium_naclhelper_t:process { share };
 
@@ -108,6 +121,9 @@ manage_sock_files_pattern(chromium_t, ch
 manage_fifo_files_pattern(chromium_t, chromium_tmp_t, chromium_tmp_t)
 files_tmp_filetrans(chromium_t, chromium_tmp_t, { file dir sock_file })
 
+# for /run/user/$UID
+userdom_user_runtime_filetrans(chromium_t, chromium_tmp_t, { file sock_file })
+
 manage_files_pattern(chromium_t, chromium_tmpfs_t, chromium_tmpfs_t)
 allow chromium_t chromium_tmpfs_t:file map;
 fs_tmpfs_filetrans(chromium_t, chromium_tmpfs_t, file)
@@ -128,7 +144,11 @@ dyntrans_pattern(chromium_t, chromium_re
 domtrans_pattern(chromium_t, chromium_sandbox_exec_t, chromium_sandbox_t)
 domtrans_pattern(chromium_t, chromium_naclhelper_exec_t, chromium_naclhelper_t)
 
+# for self:file create
+kernel_associate_proc(chromium_t)
+
 kernel_list_proc(chromium_t)
+kernel_read_kernel_sysctls(chromium_t)
 kernel_read_net_sysctls(chromium_t)
 
 corecmd_exec_bin(chromium_t)
@@ -145,6 +165,9 @@ dev_read_sound(chromium_t)
 dev_write_sound(chromium_t)
 dev_read_urand(chromium_t)
 dev_read_rand(chromium_t)
+tunable_policy(`xserver_allow_dri', `
+	dev_rw_dri(chromium_t)
+')
 dev_rw_xserver_misc(chromium_t)
 dev_map_xserver_misc(chromium_t)
 
@@ -178,14 +201,15 @@ userdom_use_user_terminals(chromium_t)
 userdom_manage_user_certs(chromium_t)
 userdom_user_home_dir_filetrans_user_cert(chromium_t, dir, ".pki")
 
-xdg_create_cache_dirs(chromium_t)
-xdg_create_config_dirs(chromium_t)
-xdg_create_data_dirs(chromium_t)
+xdg_manage_cache(chromium_t)
+xdg_manage_config(chromium_t)
+xdg_manage_data(chromium_t)
 xdg_manage_downloads(chromium_t)
-xdg_read_config_files(chromium_t)
-xdg_read_data_files(chromium_t)
 
 xserver_user_x_domain_template(chromium, chromium_t, chromium_tmpfs_t)
+xserver_stream_connect_xdm(chromium_t)
+
+xserver_manage_mesa_shader_cache(chromium_t)
 
 tunable_policy(`chromium_bind_tcp_unreserved_ports',`
 	corenet_tcp_bind_generic_node(chromium_t)
@@ -198,6 +222,11 @@ tunable_policy(`chromium_rw_usb_dev',`
 	udev_read_db(chromium_t)
 ')
 
+tunable_policy(`chromium_exec_plugins',`
+	# sometimes .config/google-chrome/PepperFlash/32.0.0.142/libpepflashplayer.so gets chromium_tmp_t
+	can_exec(chromium_t, { chromium_xdg_config_t chromium_tmp_t })
+')
+
 tunable_policy(`chromium_read_system_info',`
 	kernel_read_kernel_sysctls(chromium_t)
 	# Memory optimizations & optimizations based on OS/version
@@ -229,6 +258,10 @@ optional_policy(`
 ')
 
 optional_policy(`
+	networkmanager_dbus_chat(chromium_t)
+')
+
+optional_policy(`
 	dbus_all_session_bus_client(chromium_t)
 	dbus_system_bus_client(chromium_t)
 
@@ -241,8 +274,13 @@ optional_policy(`
 	')
 
 	optional_policy(`
+		devicekit_dbus_chat_disk(chromium_t)
 		devicekit_dbus_chat_power(chromium_t)
 	')
+
+	optional_policy(`
+		systemd_dbus_chat_hostnamed(chromium_t)
+	')
 ')
 
 optional_policy(`
@@ -252,6 +290,10 @@ optional_policy(`
 	dpkg_read_db(chromium_t)
 ')
 
+optional_policy(`
+	ssh_dontaudit_agent_tmp(chromium_t)
+')
+
 ifdef(`use_alsa',`
 	optional_policy(`
 		alsa_domain(chromium_t, chromium_tmpfs_t)
@@ -259,6 +301,7 @@ ifdef(`use_alsa',`
 
 	optional_policy(`
 		pulseaudio_domtrans(chromium_t)
+		pulseaudio_read_home(chromium_t)
 	')
 ')
 
@@ -299,6 +342,9 @@ userdom_use_user_terminals(chromium_rend
 
 xdg_read_config_files(chromium_renderer_t)
 
+# should we have a tunable for this?
+xdg_read_pictures(chromium_t)
+
 xserver_user_x_domain_template(chromium_renderer, chromium_renderer_t, chromium_tmpfs_t)
 
 tunable_policy(`chromium_read_system_info',`
@@ -360,3 +406,6 @@ tunable_policy(`chromium_read_system_inf
 
 dev_read_sysfs(chromium_naclhelper_t)
 dev_read_urand(chromium_naclhelper_t)
+kernel_list_proc(chromium_naclhelper_t)
+
+miscfiles_read_localization(chromium_naclhelper_t)
Index: refpolicy-2.20200209/policy/modules/kernel/kernel.if
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/kernel/kernel.if
+++ refpolicy-2.20200209/policy/modules/kernel/kernel.if
@@ -2424,6 +2424,24 @@ interface(`kernel_rw_all_sysctls',`
 
 ########################################
 ## <summary>
+##	Associate a file to proc_t (/proc)
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+## <rolecap/>
+#
+interface(`kernel_associate_proc',`
+	gen_require(`
+		type proc_t;
+	')
+	allow $1 proc_t:filesystem associate;
+')
+
+########################################
+## <summary>
 ##	Send a kill signal to unlabeled processes.
 ## </summary>
 ## <param name="domain">
Index: refpolicy-2.20200209/policy/modules/services/xserver.te
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/services/xserver.te
+++ refpolicy-2.20200209/policy/modules/services/xserver.te
@@ -55,6 +55,13 @@ gen_tunable(xserver_gnome_xdm, false)
 ## </desc>
 gen_tunable(xserver_object_manager, false)
 
+## <desc>
+## <p>
+## Allow DRI access
+## </p>
+## </desc>
+gen_tunable(xserver_allow_dri, false)
+
 attribute x_domain;
 
 # X Events
Index: refpolicy-2.20200209/policy/modules/services/xserver.if
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/services/xserver.if
+++ refpolicy-2.20200209/policy/modules/services/xserver.if
@@ -48,8 +48,9 @@ interface(`xserver_restricted_role',`
 	files_search_tmp($2)
 
 	# Communicate via System V shared memory.
+	allow $2 xserver_t:fd use;
 	allow $2 xserver_t:shm r_shm_perms;
-	allow $2 xserver_tmpfs_t:file read_file_perms;
+	allow $2 xserver_tmpfs_t:file { map read_file_perms };
 
 	# allow ps to show iceauth
 	ps_process_pattern($2, iceauth_t)
@@ -75,10 +76,6 @@ interface(`xserver_restricted_role',`
 	allow $2 xdm_tmp_t:sock_file { read write };
 	dontaudit $2 xdm_t:tcp_socket { read write };
 
-	# Client read xserver shm
-	allow $2 xserver_t:fd use;
-	allow $2 xserver_tmpfs_t:file read_file_perms;
-
 	# Read /tmp/.X0-lock
 	allow $2 xserver_tmp_t:file { getattr read };
 
@@ -91,6 +88,9 @@ interface(`xserver_restricted_role',`
 	# open office is looking for the following
 	dev_getattr_agp_dev($2)
 	dev_dontaudit_rw_dri($2)
+	tunable_policy(`xserver_allow_dri',`
+		dev_rw_dri($2)
+	')
 	# GNOME checks for usb and other devices:
 	dev_rw_usbfs($2)
 
@@ -1670,6 +1670,26 @@ interface(`xserver_rw_mesa_shader_cache'
 
 	rw_dirs_pattern($1, mesa_shader_cache_t, mesa_shader_cache_t)
 	rw_files_pattern($1, mesa_shader_cache_t, mesa_shader_cache_t)
+	xdg_search_cache_dirs($1)
+')
+
+########################################
+## <summary>
+##	Manage the mesa shader cache.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`xserver_manage_mesa_shader_cache',`
+	gen_require(`
+		type mesa_shader_cache_t;
+	')
+
+	manage_dirs_pattern($1, mesa_shader_cache_t, mesa_shader_cache_t)
+	manage_files_pattern($1, mesa_shader_cache_t, mesa_shader_cache_t)
 	allow $1 mesa_shader_cache_t:file map;
 
 	xdg_search_cache_dirs($1)
Index: refpolicy-2.20200209/policy/modules/apps/chromium.if
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/apps/chromium.if
+++ refpolicy-2.20200209/policy/modules/apps/chromium.if
@@ -38,7 +38,15 @@ interface(`chromium_role',`
 
 	allow $2 chromium_t:process signal_perms;
 	allow $2 chromium_renderer_t:process signal_perms;
+	allow $2 chromium_sandbox_t:process signal_perms;
 	allow $2 chromium_naclhelper_t:process signal_perms;
+	allow chromium_t $2:process { signull signal };
+	allow $2 chromium_t:file manage_file_perms;
+
+	allow $2 chromium_t:unix_stream_socket connectto;
+
+	# for /tmp/.ICE-unix/* sockets
+	allow chromium_t $2:unix_stream_socket connectto;
 
 	allow chromium_sandbox_t $2:fd use;
 	allow chromium_naclhelper_t $2:fd use;
@@ -109,6 +117,7 @@ interface(`chromium_domtrans',`
 	gen_require(`
 		type chromium_t;
 		type chromium_exec_t;
+		class dbus send_msg;
 	')
 
 	corecmd_search_bin($1)
Index: refpolicy-2.20200209/policy/modules/services/ssh.if
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/services/ssh.if
+++ refpolicy-2.20200209/policy/modules/services/ssh.if
@@ -772,3 +772,21 @@ interface(`ssh_delete_tmp',`
 	files_search_tmp($1)
 	delete_files_pattern($1, sshd_tmp_t, sshd_tmp_t)
 ')
+
+#######################################
+## <summary>
+##	dontaudit access to ssh agent tmp dirs
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain not to audit.
+##	</summary>
+## </param>
+#
+interface(`ssh_dontaudit_agent_tmp',`
+	gen_require(`
+		type ssh_agent_tmp_t;
+	')
+
+	dontaudit $1 ssh_agent_tmp_t:dir list_dir_perms;
+')
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.