Signed-off-by: Jason Zaman <jason@xxxxxxxxxxxxx> --- policy/modules/apps/chromium.fc | 31 +++ policy/modules/apps/chromium.if | 139 +++++++++++++ policy/modules/apps/chromium.te | 342 ++++++++++++++++++++++++++++++++ 3 files changed, 512 insertions(+) create mode 100644 policy/modules/apps/chromium.fc create mode 100644 policy/modules/apps/chromium.if create mode 100644 policy/modules/apps/chromium.te diff --git a/policy/modules/apps/chromium.fc b/policy/modules/apps/chromium.fc new file mode 100644 index 00000000..534235dc --- /dev/null +++ b/policy/modules/apps/chromium.fc @@ -0,0 +1,31 @@ +/opt/google/chrome/chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/opt/google/chrome/chrome_sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/opt/google/chrome/chrome-sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/opt/google/chrome/google-chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/opt/google/chrome/nacl_helper_bootstrap -- gen_context(system_u:object_r:chromium_naclhelper_exec_t,s0) +/opt/google/chrome/libudev.so.0 gen_context(system_u:object_r:lib_t,s0) + +/opt/google/chrome-beta/chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/opt/google/chrome-beta/chrome_sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/opt/google/chrome-beta/chrome-sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/opt/google/chrome-beta/google-chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/opt/google/chrome-beta/nacl_helper_bootstrap -- gen_context(system_u:object_r:chromium_naclhelper_exec_t,s0) +/opt/google/chrome-beta/libudev.so.0 gen_context(system_u:object_r:lib_t,s0) + +/opt/google/chrome-unstable/chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/opt/google/chrome-unstable/chrome_sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/opt/google/chrome-unstable/chrome-sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/opt/google/chrome-unstable/google-chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/opt/google/chrome-unstable/nacl_helper_bootstrap -- gen_context(system_u:object_r:chromium_naclhelper_exec_t,s0) +/opt/google/chrome-unstable/libudev.so.0 gen_context(system_u:object_r:lib_t,s0) + +/usr/lib/chromium-browser/chrome -- gen_context(system_u:object_r:chromium_exec_t,s0) +/usr/lib/chromium-browser/chrome_sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/usr/lib/chromium-browser/chrome-sandbox -- gen_context(system_u:object_r:chromium_sandbox_exec_t,s0) +/usr/lib/chromium-browser/chromium-launcher\.sh -- gen_context(system_u:object_r:chromium_exec_t,s0) +/usr/lib/chromium-browser/nacl_helper_bootstrap -- gen_context(system_u:object_r:chromium_naclhelper_exec_t,s0) + +HOME_DIR/\.cache/chromium(/.*)? gen_context(system_u:object_r:chromium_xdg_cache_t,s0) +HOME_DIR/\.cache/google-chrome(/.*)? gen_context(system_u:object_r:chromium_xdg_cache_t,s0) +HOME_DIR/\.config/chromium(/.*)? gen_context(system_u:object_r:chromium_xdg_config_t,s0) +HOME_DIR/\.config/google-chrome(/.*)? gen_context(system_u:object_r:chromium_xdg_config_t,s0) diff --git a/policy/modules/apps/chromium.if b/policy/modules/apps/chromium.if new file mode 100644 index 00000000..26eb0259 --- /dev/null +++ b/policy/modules/apps/chromium.if @@ -0,0 +1,139 @@ +## <summary> +## Chromium browser +## </summary> + +####################################### +## <summary> +## Role access for chromium +## </summary> +## <param name="role"> +## <summary> +## Role allowed access +## </summary> +## </param> +## <param name="domain"> +## <summary> +## User domain for the role +## </summary> +## </param> +# +interface(`chromium_role',` + gen_require(` + type chromium_t; + type chromium_renderer_t; + type chromium_sandbox_t; + type chromium_naclhelper_t; + type chromium_exec_t; + ') + + role $1 types chromium_t; + role $1 types chromium_renderer_t; + role $1 types chromium_sandbox_t; + role $1 types chromium_naclhelper_t; + + # Transition from the user domain to the derived domain + chromium_domtrans($2) + + # Allow ps to show chromium processes and allow the user to signal it + ps_process_pattern($2, chromium_t) + ps_process_pattern($2, chromium_renderer_t) + + allow $2 chromium_t:process signal_perms; + allow $2 chromium_renderer_t:process signal_perms; + allow $2 chromium_naclhelper_t:process signal_perms; + + allow chromium_sandbox_t $2:fd use; + allow chromium_naclhelper_t $2:fd use; +') + +####################################### +## <summary> +## Read-write access to Chromiums' temporary fifo files +## </summary> +## <param name="domain"> +## <summary> +## Domain allowed access +## </summary> +## </param> +# +interface(`chromium_rw_tmp_pipes',` + gen_require(` + type chromium_tmp_t; + ') + + rw_fifo_files_pattern($1, chromium_tmp_t, chromium_tmp_t) +') + +############################################## +## <summary> +## Automatically use the specified type for resources created in chromium's +## temporary locations +## </summary> +## <param name="domain"> +## <summary> +## Domain that creates the resource(s) +## </summary> +## </param> +## <param name="class"> +## <summary> +## Type of the resource created +## </summary> +## </param> +## <param name="filename" optional="true"> +## <summary> +## The name of the resource being created +## </summary> +## </param> +# +interface(`chromium_tmp_filetrans',` + gen_require(` + type chromium_tmp_t; + ') + + search_dirs_pattern($1, chromium_tmp_t, chromium_tmp_t) + filetrans_pattern($1, chromium_tmp_t, $2, $3, $4) +') + +####################################### +## <summary> +## Execute a domain transition to the chromium domain (chromium_t) +## </summary> +## <param name="domain"> +## <summary> +## Domain allowed access +## </summary> +## </param> +# +interface(`chromium_domtrans',` + gen_require(` + type chromium_t; + type chromium_exec_t; + ') + + corecmd_search_bin($1) + domtrans_pattern($1, chromium_exec_t, chromium_t) +') + +####################################### +## <summary> +## Execute chromium in the chromium domain and allow the specified role to access the chromium domain +## </summary> +## <param name="domain"> +## <summary> +## Domain allowed access +## </summary> +## </param> +## <param name="role"> +## <summary> +## Role allowed access +## </summary> +## </param> +# +interface(`chromium_run',` + gen_require(` + type chromium_t; + ') + + chromium_domtrans($1) + role $2 types chromium_t; +') diff --git a/policy/modules/apps/chromium.te b/policy/modules/apps/chromium.te new file mode 100644 index 00000000..5219cb87 --- /dev/null +++ b/policy/modules/apps/chromium.te @@ -0,0 +1,342 @@ +policy_module(chromium, 1.0.0) + +######################################## +# +# Declarations +# + +## <desc> +## <p> +## Allow chromium to read system information +## </p> +## <p> +## Although not needed for regular browsing, this will allow chromium to update +## its own memory consumption based on system state, support additional +## debugging, detect specific devices, etc. +## </p> +## </desc> +gen_tunable(chromium_read_system_info, false) + +## <desc> +## <p> +## Allow chromium to bind to tcp ports +## </p> +## <p> +## Although not needed for regular browsing, some chrome extensions need to +## bind to tcp ports and accept connections. +## </p> +## </desc> +gen_tunable(chromium_bind_tcp_unreserved_ports, false) + +## <desc> +## <p> +## Allow chromium to read/write USB devices +## </p> +## <p> +## Although not needed for regular browsing, used for debugging over usb +## or using FIDO U2F tokens. +## </p> +## </desc> +gen_tunable(chromium_rw_usb_dev, false) + +type chromium_t; +domain_dyntrans_type(chromium_t) + +type chromium_exec_t; +application_domain(chromium_t, chromium_exec_t) + +type chromium_naclhelper_t; +type chromium_naclhelper_exec_t; +application_domain(chromium_naclhelper_t, chromium_naclhelper_exec_t) + +type chromium_sandbox_t; +type chromium_sandbox_exec_t; +application_domain(chromium_sandbox_t, chromium_sandbox_exec_t) + +type chromium_renderer_t; +domain_base_type(chromium_renderer_t) + +type chromium_tmp_t; +userdom_user_tmp_file(chromium_tmp_t) + +type chromium_tmpfs_t; +userdom_user_tmpfs_file(chromium_tmpfs_t) +optional_policy(` + pulseaudio_tmpfs_content(chromium_tmpfs_t) +') + +type chromium_xdg_config_t; +xdg_config_content(chromium_xdg_config_t) + +type chromium_xdg_cache_t; +xdg_cache_content(chromium_xdg_cache_t) + + + +######################################## +# +# chromium local policy +# + +# execmem for load in plugins +allow chromium_t self:process { execmem getsched getcap setcap setrlimit setsched sigkill signal }; +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; +# cap_userns sys_admin for the sandbox +allow chromium_t self:cap_userns { sys_admin sys_chroot sys_ptrace }; + +allow chromium_t chromium_exec_t:file execute_no_trans; + +allow chromium_t chromium_renderer_t:dir list_dir_perms; +allow chromium_t chromium_renderer_t:file rw_file_perms; +allow chromium_t chromium_renderer_t:fd use; +allow chromium_t chromium_renderer_t:process signal_perms; +allow chromium_t chromium_renderer_t:shm rw_shm_perms; +allow chromium_t chromium_renderer_t:unix_dgram_socket { read write }; +allow chromium_t chromium_renderer_t:unix_stream_socket { read write }; + +allow chromium_t chromium_sandbox_t:unix_dgram_socket { read write }; +allow chromium_t chromium_sandbox_t:unix_stream_socket { read write }; + +allow chromium_t chromium_naclhelper_t:process { share }; + +# tmp has a wide class access (used for plugins) +manage_files_pattern(chromium_t, chromium_tmp_t, chromium_tmp_t) +allow chromium_t chromium_tmp_t:file map; +manage_dirs_pattern(chromium_t, chromium_tmp_t, chromium_tmp_t) +manage_lnk_files_pattern(chromium_t, chromium_tmp_t, chromium_tmp_t) +manage_sock_files_pattern(chromium_t, chromium_tmp_t, chromium_tmp_t) +manage_fifo_files_pattern(chromium_t, chromium_tmp_t, chromium_tmp_t) +files_tmp_filetrans(chromium_t, chromium_tmp_t, { file dir 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) +fs_tmpfs_filetrans(chromium_renderer_t, chromium_tmpfs_t, file) + +manage_files_pattern(chromium_t, chromium_xdg_config_t, chromium_xdg_config_t) +allow chromium_t chromium_xdg_config_t:file map; +manage_lnk_files_pattern(chromium_t, chromium_xdg_config_t, chromium_xdg_config_t) +manage_dirs_pattern(chromium_t, chromium_xdg_config_t, chromium_xdg_config_t) +xdg_config_filetrans(chromium_t, chromium_xdg_config_t, dir, "chromium") + +manage_files_pattern(chromium_t, chromium_xdg_cache_t, chromium_xdg_cache_t) +allow chromium_t chromium_xdg_cache_t:file map; +manage_dirs_pattern(chromium_t, chromium_xdg_cache_t, chromium_xdg_cache_t) +xdg_cache_filetrans(chromium_t, chromium_xdg_cache_t, dir, "chromium") + +dyntrans_pattern(chromium_t, chromium_renderer_t) +domtrans_pattern(chromium_t, chromium_sandbox_exec_t, chromium_sandbox_t) +domtrans_pattern(chromium_t, chromium_naclhelper_exec_t, chromium_naclhelper_t) + +kernel_list_proc(chromium_t) +kernel_read_net_sysctls(chromium_t) + +corecmd_exec_bin(chromium_t) +# Look for /etc/gentoo-release through a shell invocation running find +corecmd_exec_shell(chromium_t) + +corenet_tcp_connect_all_unreserved_ports(chromium_t) +corenet_tcp_connect_ftp_port(chromium_t) +corenet_tcp_connect_http_port(chromium_t) +corenet_udp_bind_generic_node(chromium_t) +corenet_udp_bind_all_unreserved_ports(chromium_t) + +dev_read_sound(chromium_t) +dev_write_sound(chromium_t) +dev_read_urand(chromium_t) +dev_read_rand(chromium_t) +dev_rw_xserver_misc(chromium_t) +dev_map_xserver_misc(chromium_t) + +domain_dontaudit_search_all_domains_state(chromium_t) + +files_list_home(chromium_t) +files_search_home(chromium_t) +files_read_usr_files(chromium_t) +files_map_usr_files(chromium_t) +files_read_etc_files(chromium_t) +# During find for /etc/whatever-release we get lots of output otherwise +files_dontaudit_getattr_all_dirs(chromium_t) + +fs_dontaudit_getattr_xattr_fs(chromium_t) + +miscfiles_read_all_certs(chromium_t) +miscfiles_read_localization(chromium_t) + +sysnet_dns_name_resolve(chromium_t) + +userdom_user_content_access_template(chromium, chromium_t) +userdom_dontaudit_list_user_home_dirs(chromium_t) +# Debugging. Also on user_tty_device_t if X is started through "startx" for instance +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_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) + +tunable_policy(`chromium_bind_tcp_unreserved_ports',` + corenet_tcp_bind_generic_node(chromium_t) + corenet_tcp_bind_all_unreserved_ports(chromium_t) + allow chromium_t self:tcp_socket { listen accept }; +') + +tunable_policy(`chromium_rw_usb_dev',` + dev_rw_generic_usb_dev(chromium_t) + udev_read_db(chromium_t) +') + +tunable_policy(`chromium_read_system_info',` + kernel_read_kernel_sysctls(chromium_t) + # Memory optimizations & optimizations based on OS/version + kernel_read_system_state(chromium_t) + + # Debugging (sys/kernel/debug) and device information (sys/bus and sys/devices). + dev_read_sysfs(chromium_t) + + storage_getattr_fixed_disk_dev(chromium_t) + + files_read_etc_runtime_files(chromium_t) + + dev_dontaudit_getattr_all_chr_files(chromium_t) + init_dontaudit_getattr_initctl(chromium_t) +',` + kernel_dontaudit_read_kernel_sysctl(chromium_t) + kernel_dontaudit_read_system_state(chromium_t) + + dev_dontaudit_read_sysfs(chromium_t) + + files_dontaudit_read_etc_runtime_files(chromium_t) +') + +optional_policy(` + cups_read_config(chromium_t) + cups_stream_connect(chromium_t) +') + +optional_policy(` + dbus_all_session_bus_client(chromium_t) + dbus_system_bus_client(chromium_t) + + optional_policy(` + unconfined_dbus_chat(chromium_t) + ') + optional_policy(` + gnome_dbus_chat_all_gkeyringd(chromium_t) + ') + optional_policy(` + devicekit_dbus_chat_power(chromium_t) + ') +') + +ifdef(`use_alsa',` + optional_policy(` + alsa_domain(chromium_t, chromium_tmpfs_t) + ') + + optional_policy(` + pulseaudio_domtrans(chromium_t) + ') +') + +######################################## +# +# chromium_renderer local policy +# + +allow chromium_renderer_t self:process execmem; + +allow chromium_renderer_t self:fifo_file rw_fifo_file_perms; +allow chromium_renderer_t self:shm create_shm_perms; +allow chromium_renderer_t self:unix_dgram_socket { create read sendto }; +allow chromium_renderer_t self:unix_stream_socket { create getattr read write }; + +allow chromium_renderer_t chromium_t:fd use; +allow chromium_renderer_t chromium_t:unix_stream_socket rw_stream_socket_perms; +allow chromium_renderer_t chromium_tmpfs_t:file rw_file_perms; + +dontaudit chromium_renderer_t chromium_t:dir search; # /proc/... access +dontaudit chromium_renderer_t self:process getsched; + +read_files_pattern(chromium_renderer_t, chromium_xdg_config_t, chromium_xdg_config_t) + +rw_fifo_files_pattern(chromium_renderer_t, chromium_tmp_t, chromium_tmp_t) + +dev_read_urand(chromium_renderer_t) + +files_dontaudit_list_tmp(chromium_renderer_t) +files_dontaudit_read_etc_files(chromium_renderer_t) +files_search_var(chromium_renderer_t) + +init_sigchld(chromium_renderer_t) + +miscfiles_read_localization(chromium_renderer_t) + +userdom_dontaudit_use_all_users_fds(chromium_renderer_t) +userdom_use_user_terminals(chromium_renderer_t) + +xdg_read_config_files(chromium_renderer_t) + +xserver_user_x_domain_template(chromium_renderer, chromium_renderer_t, chromium_tmpfs_t) + +tunable_policy(`chromium_read_system_info',` + kernel_read_kernel_sysctls(chromium_renderer_t) + kernel_read_system_state(chromium_renderer_t) +',` + kernel_dontaudit_read_kernel_sysctl(chromium_renderer_t) + kernel_dontaudit_read_system_state(chromium_renderer_t) +') + +######################################### +# +# Chromium sandbox local policy +# + +allow chromium_sandbox_t self:capability { dac_read_search setgid setuid sys_admin sys_chroot sys_ptrace }; +allow chromium_sandbox_t self:process { setrlimit }; +allow chromium_sandbox_t self:unix_stream_socket create_stream_socket_perms; + +allow chromium_sandbox_t chromium_t:process { share }; +# /proc access +allow chromium_sandbox_t chromium_t:dir list_dir_perms; +allow chromium_sandbox_t chromium_t:lnk_file read_lnk_file_perms; +allow chromium_sandbox_t chromium_t:file rw_file_perms; + +allow chromium_sandbox_t chromium_t:unix_stream_socket { read write }; +allow chromium_sandbox_t chromium_t:unix_dgram_socket { read write }; + +kernel_list_proc(chromium_sandbox_t) + +domain_dontaudit_read_all_domains_state(chromium_sandbox_t) + +userdom_use_user_ptys(chromium_sandbox_t) + +chromium_domtrans(chromium_sandbox_t) + +########################################## +# +# Chromium nacl helper local policy +# + +allow chromium_naclhelper_t chromium_t:unix_stream_socket { read write }; + +domain_mmap_low_uncond(chromium_naclhelper_t) + +userdom_use_user_ptys(chromium_naclhelper_t) + +tunable_policy(`chromium_read_system_info',` + kernel_read_kernel_sysctls(chromium_naclhelper_t) + kernel_read_system_state(chromium_naclhelper_t) +',` + kernel_dontaudit_read_kernel_sysctl(chromium_naclhelper_t) + kernel_dontaudit_read_system_state(chromium_naclhelper_t) +') + -- 2.19.2