342362ae3e
kernel commit 2a4c22426955d4fc04069811997b7390c0fb858e (fs: switch order of CAP_DAC_OVERRIDE and CAP_DAC_READ_SEARCH checks) swapped the order of dac_override and dac_read_search checks. Domains that have dac_override will now generate spurious denials for dac_read_search unless they also have that permission. Since dac_override is a strict superset of dac_read_search, grant dac_read_search to all domains that already have dac_override to get rid of the denials. Bug: 114280985 Bug: crbug.com/877588 Test: Booted on a device running 4.14. Change-Id: I5c1c136b775cceeb7f170e139e8d4279e73267a4
60 lines
1.7 KiB
Text
60 lines
1.7 KiB
Text
# storaged daemon
|
|
type storaged, domain, coredomain, mlstrustedsubject;
|
|
type storaged_exec, exec_type, file_type;
|
|
|
|
init_daemon_domain(storaged)
|
|
|
|
# Read access to pseudo filesystems
|
|
r_dir_file(storaged, domain)
|
|
|
|
# Read /proc/uid_io/stats
|
|
allow storaged proc_uid_io_stats:file r_file_perms;
|
|
|
|
# Read /data/system/packages.list
|
|
allow storaged system_data_file:file r_file_perms;
|
|
|
|
# Store storaged proto file
|
|
allow storaged storaged_data_file:dir rw_dir_perms;
|
|
allow storaged storaged_data_file:file create_file_perms;
|
|
|
|
userdebug_or_eng(`
|
|
# Read access to debugfs
|
|
allow storaged debugfs_mmc:dir search;
|
|
allow storaged debugfs_mmc:file r_file_perms;
|
|
')
|
|
|
|
# Needed to provide debug dump output via dumpsys pipes.
|
|
allow storaged shell:fd use;
|
|
allow storaged shell:fifo_file write;
|
|
|
|
# Needed for GMScore to call dumpsys storaged
|
|
allow storaged priv_app:fd use;
|
|
allow storaged { privapp_data_file app_data_file }:file write;
|
|
allow storaged permission_service:service_manager find;
|
|
|
|
# Binder permissions
|
|
add_service(storaged, storaged_service)
|
|
|
|
binder_use(storaged)
|
|
binder_call(storaged, system_server)
|
|
|
|
hal_client_domain(storaged, hal_health)
|
|
|
|
# Implements a dumpsys interface.
|
|
allow storaged dumpstate:fd use;
|
|
|
|
# use a subset of the package manager service
|
|
allow storaged package_native_service:service_manager find;
|
|
|
|
# Kernel does extra check on CAP_DAC_OVERRIDE for libbinder when storaged is
|
|
# running as root. See b/35323867 #3.
|
|
dontaudit storaged self:global_capability_class_set { dac_override dac_read_search };
|
|
|
|
# For collecting bugreports.
|
|
allow storaged dumpstate:fifo_file write;
|
|
|
|
###
|
|
### neverallow
|
|
###
|
|
neverallow storaged domain:process ptrace;
|
|
neverallow storaged self:capability_class_set *;
|