a93398051c
... such as Cuttlefish (Cloud Android virtual device) which has a DRM virtio-gpu based gralloc and (sometimes) DRM virtio-gpu based rendering (when forwarding rendering commands to the host machine with Mesa3D in the guest and virglrenderer on the host). After this change is submitted, changes such as aosp/1997572 can be submitted to removed sepolicy that is currently duplicated across device/google/cuttlefish and device/linaro/dragonboard as well. Adds a sysfs_gpu type (existing replicated sysfs_gpu definitions across several devices are removed in the attached topic). The uses of `sysfs_gpu:file` comes from Mesa using libdrm's `drmGetDevices2()` which calls into `drmParsePciDeviceInfo()` to get vendor id, device id, version etc. Bug: b/161819018 Test: launch_cvd Test: launch_cvd --gpu_mode=gfxstream Change-Id: I4f7d4b0fb90bfeef72f94396ff0c5fe44d53510c Merged-In: I4f7d4b0fb90bfeef72f94396ff0c5fe44d53510c
399 lines
11 KiB
Text
399 lines
11 KiB
Text
# dumpstate
|
|
type dumpstate, domain, mlstrustedsubject;
|
|
type dumpstate_exec, system_file_type, exec_type, file_type;
|
|
|
|
net_domain(dumpstate)
|
|
binder_use(dumpstate)
|
|
wakelock_use(dumpstate)
|
|
|
|
# Allow setting process priority, protect from OOM killer, and dropping
|
|
# privileges by switching UID / GID
|
|
allow dumpstate self:global_capability_class_set { setuid setgid sys_resource };
|
|
|
|
# Allow dumpstate to scan through /proc/pid for all processes
|
|
r_dir_file(dumpstate, domain)
|
|
|
|
allow dumpstate self:global_capability_class_set {
|
|
# Send signals to processes
|
|
kill
|
|
# Run iptables
|
|
net_raw
|
|
net_admin
|
|
};
|
|
|
|
# Allow executing files on system, such as:
|
|
# /system/bin/toolbox
|
|
# /system/bin/logcat
|
|
# /system/bin/dumpsys
|
|
allow dumpstate system_file:file execute_no_trans;
|
|
not_full_treble(`allow dumpstate vendor_file:file execute_no_trans;')
|
|
allow dumpstate toolbox_exec:file rx_file_perms;
|
|
|
|
# hidl searches for files in /system/lib(64)/hw/
|
|
allow dumpstate system_file:dir r_dir_perms;
|
|
|
|
# Create and write into /data/anr/
|
|
allow dumpstate self:global_capability_class_set { dac_override dac_read_search chown fowner fsetid };
|
|
allow dumpstate anr_data_file:dir rw_dir_perms;
|
|
allow dumpstate anr_data_file:file create_file_perms;
|
|
|
|
# Allow reading /data/system/uiderrors.txt
|
|
# TODO: scope this down.
|
|
allow dumpstate system_data_file:file r_file_perms;
|
|
|
|
# Allow dumpstate to append into apps' private files.
|
|
allow dumpstate { privapp_data_file app_data_file }:file append;
|
|
|
|
# Read dmesg
|
|
allow dumpstate self:global_capability2_class_set syslog;
|
|
allow dumpstate kernel:system syslog_read;
|
|
|
|
# Read /sys/fs/pstore/console-ramoops
|
|
allow dumpstate pstorefs:dir r_dir_perms;
|
|
allow dumpstate pstorefs:file r_file_perms;
|
|
|
|
# Get process attributes
|
|
allow dumpstate domain:process getattr;
|
|
|
|
# Signal java processes to dump their stack
|
|
allow dumpstate { appdomain system_server zygote }:process signal;
|
|
|
|
# Signal native processes to dump their stack.
|
|
allow dumpstate {
|
|
# This list comes from native_processes_to_dump in dumputils/dump_utils.c
|
|
audioserver
|
|
cameraserver
|
|
drmserver
|
|
inputflinger
|
|
mediadrmserver
|
|
mediaextractor
|
|
mediametrics
|
|
mediaserver
|
|
mediaswcodec
|
|
sdcardd
|
|
surfaceflinger
|
|
vold
|
|
|
|
# This list comes from hal_interfaces_to_dump in dumputils/dump_utils.c
|
|
hal_audio_server
|
|
hal_audiocontrol_server
|
|
hal_bluetooth_server
|
|
hal_camera_server
|
|
hal_codec2_server
|
|
hal_drm_server
|
|
hal_evs_server
|
|
hal_face_server
|
|
hal_fingerprint_server
|
|
hal_graphics_allocator_server
|
|
hal_graphics_composer_server
|
|
hal_health_server
|
|
hal_neuralnetworks_server
|
|
hal_omx_server
|
|
hal_power_server
|
|
hal_power_stats_server
|
|
hal_sensors_server
|
|
hal_thermal_server
|
|
hal_vehicle_server
|
|
hal_vr_server
|
|
system_suspend_server
|
|
}:process signal;
|
|
|
|
# Connect to tombstoned to intercept dumps.
|
|
unix_socket_connect(dumpstate, tombstoned_intercept, tombstoned)
|
|
|
|
# Access to /sys
|
|
allow dumpstate sysfs_type:dir r_dir_perms;
|
|
|
|
allow dumpstate {
|
|
sysfs_devices_block
|
|
sysfs_dm
|
|
sysfs_loop
|
|
sysfs_usb
|
|
sysfs_zram
|
|
}:file r_file_perms;
|
|
|
|
# Other random bits of data we want to collect
|
|
no_debugfs_restriction(`
|
|
allow dumpstate debugfs:file r_file_perms;
|
|
auditallow dumpstate debugfs:file r_file_perms;
|
|
|
|
allow dumpstate debugfs_mmc:file r_file_perms;
|
|
')
|
|
|
|
# df for
|
|
allow dumpstate {
|
|
block_device
|
|
cache_file
|
|
metadata_file
|
|
rootfs
|
|
selinuxfs
|
|
storage_file
|
|
tmpfs
|
|
}:dir { search getattr };
|
|
allow dumpstate fuse_device:chr_file getattr;
|
|
allow dumpstate { dm_device cache_block_device }:blk_file getattr;
|
|
allow dumpstate { cache_file rootfs }:lnk_file { getattr read };
|
|
|
|
# Read /dev/cpuctl and /dev/cpuset
|
|
r_dir_file(dumpstate, cgroup)
|
|
r_dir_file(dumpstate, cgroup_v2)
|
|
|
|
# Allow dumpstate to make binder calls to any binder service
|
|
binder_call(dumpstate, binderservicedomain)
|
|
binder_call(dumpstate, { appdomain netd wificond })
|
|
|
|
# Allow dumpstate to call dump() on specific hals.
|
|
dump_hal(hal_dumpstate)
|
|
dump_hal(hal_wifi)
|
|
dump_hal(hal_graphics_allocator)
|
|
dump_hal(hal_light)
|
|
dump_hal(hal_neuralnetworks)
|
|
dump_hal(hal_nfc)
|
|
dump_hal(hal_thermal)
|
|
dump_hal(hal_power)
|
|
dump_hal(hal_power_stats)
|
|
dump_hal(hal_identity)
|
|
dump_hal(hal_face)
|
|
dump_hal(hal_fingerprint)
|
|
dump_hal(hal_gnss)
|
|
dump_hal(hal_contexthub)
|
|
dump_hal(hal_drm)
|
|
|
|
# Vibrate the device after we are done collecting the bugreport
|
|
hal_client_domain(dumpstate, hal_vibrator)
|
|
|
|
# Reading /proc/PID/maps of other processes
|
|
allow dumpstate self:global_capability_class_set sys_ptrace;
|
|
|
|
# Allow the bugreport service to create a file in
|
|
# /data/data/com.android.shell/files/bugreports/bugreport
|
|
allow dumpstate shell_data_file:dir create_dir_perms;
|
|
allow dumpstate shell_data_file:file create_file_perms;
|
|
|
|
# Run a shell.
|
|
allow dumpstate shell_exec:file rx_file_perms;
|
|
|
|
# For running am and similar framework commands.
|
|
# Run /system/bin/app_process.
|
|
allow dumpstate zygote_exec:file rx_file_perms;
|
|
|
|
# For Bluetooth
|
|
allow dumpstate bluetooth_data_file:dir search;
|
|
allow dumpstate bluetooth_logs_data_file:dir r_dir_perms;
|
|
allow dumpstate bluetooth_logs_data_file:file r_file_perms;
|
|
|
|
# For Nfc
|
|
allow dumpstate nfc_logs_data_file:dir r_dir_perms;
|
|
allow dumpstate nfc_logs_data_file:file r_file_perms;
|
|
|
|
# Dumpstate calls screencap, which grabs a screenshot. Needs gpu access
|
|
allow dumpstate gpu_device:chr_file rw_file_perms;
|
|
allow dumpstate gpu_device:dir r_dir_perms;
|
|
|
|
# logd access
|
|
read_logd(dumpstate)
|
|
control_logd(dumpstate)
|
|
read_runtime_log_tags(dumpstate)
|
|
|
|
# Read files in /proc
|
|
allow dumpstate {
|
|
proc_buddyinfo
|
|
proc_cmdline
|
|
proc_meminfo
|
|
proc_modules
|
|
proc_net_type
|
|
proc_pipe_conf
|
|
proc_pagetypeinfo
|
|
proc_qtaguid_ctrl
|
|
proc_qtaguid_stat
|
|
proc_slabinfo
|
|
proc_version
|
|
proc_vmallocinfo
|
|
proc_vmstat
|
|
}:file r_file_perms;
|
|
|
|
# Read network state info files.
|
|
allow dumpstate net_data_file:dir search;
|
|
allow dumpstate net_data_file:file r_file_perms;
|
|
|
|
# List sockets via ss.
|
|
allow dumpstate self:netlink_tcpdiag_socket { create_socket_perms_no_ioctl nlmsg_read };
|
|
|
|
# Access /data/tombstones.
|
|
allow dumpstate tombstone_data_file:dir r_dir_perms;
|
|
allow dumpstate tombstone_data_file:file r_file_perms;
|
|
|
|
# Access /cache/recovery
|
|
allow dumpstate cache_recovery_file:dir r_dir_perms;
|
|
allow dumpstate cache_recovery_file:file r_file_perms;
|
|
|
|
# Access /data/misc/recovery
|
|
allow dumpstate recovery_data_file:dir r_dir_perms;
|
|
allow dumpstate recovery_data_file:file r_file_perms;
|
|
|
|
#Access /data/misc/update_engine_log
|
|
allow dumpstate update_engine_log_data_file:dir r_dir_perms;
|
|
allow dumpstate update_engine_log_data_file:file r_file_perms;
|
|
|
|
# Access /data/misc/profiles/{cur,ref}/
|
|
userdebug_or_eng(`
|
|
allow dumpstate { user_profile_root_file user_profile_data_file}:dir r_dir_perms;
|
|
allow dumpstate user_profile_data_file:file r_file_perms;
|
|
')
|
|
|
|
# Access /data/misc/logd
|
|
allow dumpstate misc_logd_file:dir r_dir_perms;
|
|
allow dumpstate misc_logd_file:file r_file_perms;
|
|
|
|
# Access /data/misc/prereboot
|
|
allow dumpstate prereboot_data_file:dir r_dir_perms;
|
|
allow dumpstate prereboot_data_file:file r_file_perms;
|
|
|
|
allow dumpstate app_fuse_file:dir r_dir_perms;
|
|
allow dumpstate overlayfs_file:dir r_dir_perms;
|
|
|
|
allow dumpstate {
|
|
service_manager_type
|
|
-apex_service
|
|
-dumpstate_service
|
|
-gatekeeper_service
|
|
-hal_service_type
|
|
-virtual_touchpad_service
|
|
-vold_service
|
|
-default_android_service
|
|
}:service_manager find;
|
|
# suppress denials for services dumpstate should not be accessing.
|
|
dontaudit dumpstate {
|
|
apex_service
|
|
dumpstate_service
|
|
gatekeeper_service
|
|
hal_service_type
|
|
virtual_touchpad_service
|
|
vold_service
|
|
}:service_manager find;
|
|
|
|
# Most of these are neverallowed.
|
|
dontaudit dumpstate hwservice_manager_type:hwservice_manager find;
|
|
|
|
allow dumpstate servicemanager:service_manager list;
|
|
allow dumpstate hwservicemanager:hwservice_manager list;
|
|
|
|
allow dumpstate devpts:chr_file rw_file_perms;
|
|
|
|
# Read any system properties
|
|
get_prop(dumpstate, property_type)
|
|
|
|
# Access to /data/media.
|
|
# This should be removed if sdcardfs is modified to alter the secontext for its
|
|
# accesses to the underlying FS.
|
|
allow dumpstate media_rw_data_file:dir getattr;
|
|
allow dumpstate proc_interrupts:file r_file_perms;
|
|
allow dumpstate proc_zoneinfo:file r_file_perms;
|
|
|
|
# Create a service for talking back to system_server
|
|
add_service(dumpstate, dumpstate_service)
|
|
|
|
# use /dev/ion for screen capture
|
|
allow dumpstate ion_device:chr_file r_file_perms;
|
|
|
|
# Allow dumpstate to run top
|
|
allow dumpstate proc_stat:file r_file_perms;
|
|
|
|
allow dumpstate proc_pressure_cpu:file r_file_perms;
|
|
allow dumpstate proc_pressure_mem:file r_file_perms;
|
|
allow dumpstate proc_pressure_io:file r_file_perms;
|
|
|
|
# Allow dumpstate to run ps
|
|
allow dumpstate proc_pid_max:file r_file_perms;
|
|
|
|
# Allow dumpstate to talk to installd over binder
|
|
binder_call(dumpstate, installd);
|
|
|
|
# Allow dumpstate to talk to iorapd over binder.
|
|
binder_call(dumpstate, iorapd)
|
|
|
|
# Allow dumpstate to run ip xfrm policy
|
|
allow dumpstate self:netlink_xfrm_socket { create_socket_perms_no_ioctl nlmsg_read };
|
|
|
|
# Allow dumpstate to run iotop
|
|
allow dumpstate self:netlink_socket create_socket_perms_no_ioctl;
|
|
# newer kernels (e.g. 4.4) have a new class for sockets
|
|
allow dumpstate self:netlink_generic_socket create_socket_perms_no_ioctl;
|
|
|
|
# Allow dumpstate to run ss
|
|
allow dumpstate { domain pdx_channel_socket_type pdx_endpoint_socket_type }:socket_class_set getattr;
|
|
|
|
# Allow dumpstate to read linkerconfig directory
|
|
allow dumpstate linkerconfig_file:dir { read open };
|
|
|
|
# For when dumpstate runs df
|
|
dontaudit dumpstate {
|
|
mnt_vendor_file
|
|
mirror_data_file
|
|
mnt_user_file
|
|
}:dir search;
|
|
dontaudit dumpstate {
|
|
apex_mnt_dir
|
|
linkerconfig_file
|
|
mirror_data_file
|
|
mnt_user_file
|
|
}:dir getattr;
|
|
|
|
# Allow dumpstate to talk to bufferhubd over binder
|
|
binder_call(dumpstate, bufferhubd);
|
|
|
|
# Allow dumpstate to talk to mediaswcodec over binder
|
|
binder_call(dumpstate, mediaswcodec);
|
|
|
|
# Allow dumpstate to talk to these stable AIDL services over binder
|
|
binder_call(dumpstate, hal_rebootescrow_server)
|
|
allow hal_rebootescrow_server dumpstate:fifo_file write;
|
|
allow hal_rebootescrow_server dumpstate:fd use;
|
|
|
|
binder_call(dumpstate, hal_authsecret_server)
|
|
allow hal_authsecret_server dumpstate:fifo_file write;
|
|
allow hal_authsecret_server dumpstate:fd use;
|
|
|
|
binder_call(dumpstate, hal_keymint_server)
|
|
allow hal_keymint_server dumpstate:fifo_file write;
|
|
allow hal_keymint_server dumpstate:fd use;
|
|
|
|
binder_call(dumpstate, hal_memtrack_server)
|
|
allow hal_memtrack_server dumpstate:fifo_file write;
|
|
allow hal_memtrack_server dumpstate:fd use;
|
|
|
|
binder_call(dumpstate, hal_oemlock_server)
|
|
allow hal_oemlock_server dumpstate:fifo_file write;
|
|
allow hal_oemlock_server dumpstate:fd use;
|
|
|
|
binder_call(dumpstate, hal_weaver_server)
|
|
allow hal_weaver_server dumpstate:fifo_file write;
|
|
allow hal_weaver_server dumpstate:fd use;
|
|
|
|
#Access /data/misc/snapshotctl_log
|
|
allow dumpstate snapshotctl_log_data_file:dir r_dir_perms;
|
|
allow dumpstate snapshotctl_log_data_file:file r_file_perms;
|
|
|
|
#Allow access to /dev/binderfs/binder_logs
|
|
allow dumpstate binderfs_logs:dir r_dir_perms;
|
|
allow dumpstate binderfs_logs:file r_file_perms;
|
|
allow dumpstate binderfs_logs_proc:file r_file_perms;
|
|
|
|
allow dumpstate apex_info_file:file getattr;
|
|
|
|
###
|
|
### neverallow rules
|
|
###
|
|
|
|
# dumpstate has capability sys_ptrace, but should only use that capability for
|
|
# accessing sensitive /proc/PID files, never for using ptrace attach.
|
|
neverallow dumpstate *:process ptrace;
|
|
|
|
# only system_server, dumpstate, traceur_app and shell can find the dumpstate service
|
|
neverallow {
|
|
domain
|
|
-system_server
|
|
-shell
|
|
-traceur_app
|
|
-dumpstate
|
|
} dumpstate_service:service_manager find;
|