You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.7 KiB
38 lines
1.7 KiB
4 months ago
|
# Domain used when running /system/bin/simpleperf to profile a specific app.
|
||
|
|
# Entered either by the app itself exec-ing the binary, or through
|
||
|
|
# simpleperf_app_runner (with shell as its origin). Certain other domains
|
||
|
|
# (runas_app, shell) can also exec this binary without a domain transition.
|
||
|
|
typeattribute simpleperf coredomain;
|
||
|
|
type simpleperf_exec, system_file_type, exec_type, file_type;
|
||
|
|
|
||
|
|
domain_auto_trans({ untrusted_app_all -runas_app }, simpleperf_exec, simpleperf)
|
||
|
|
|
||
|
|
# When running in this domain, simpleperf is scoped to profiling an individual
|
||
|
|
# app. The necessary MAC permissions for profiling are more maintainable and
|
||
|
|
# consistent if simpleperf is marked as an app domain as well (as, for example,
|
||
|
|
# it will then see the same set of system libraries as the app).
|
||
|
|
app_domain(simpleperf)
|
||
|
|
untrusted_app_domain(simpleperf)
|
||
|
|
|
||
|
|
# Allow ptrace attach to the target app, for reading JIT debug info (using
|
||
|
|
# process_vm_readv) during unwinding and symbolization.
|
||
|
|
allow simpleperf untrusted_app_all:process ptrace;
|
||
|
|
|
||
|
|
# Allow using perf_event_open syscall for profiling the target app.
|
||
|
|
allow simpleperf self:perf_event { open read write kernel };
|
||
|
|
|
||
|
|
# Allow /proc/<pid> access for the target app (for example, when trying to
|
||
|
|
# discover it by cmdline).
|
||
|
|
r_dir_file(simpleperf, untrusted_app_all)
|
||
|
|
|
||
|
|
# Suppress denial logspam when simpleperf is trying to find a matching process
|
||
|
|
# by scanning /proc/<pid>/cmdline files. The /proc/<pid> directories are within
|
||
|
|
# the same domain as their respective processes, most of which this domain is
|
||
|
|
# not allowed to see.
|
||
|
|
dontaudit simpleperf domain:dir search;
|
||
|
|
|
||
|
|
# Neverallows:
|
||
|
|
|
||
|
|
# Profiling must be confined to the scope of an individual app.
|
||
|
|
neverallow simpleperf self:perf_event ~{ open read write kernel };
|