cdda2dc3c9
This change allows the perfetto cmdline client to access the (unprivileged) producer socket of traced, with the intent of triggering finalization of already running traces (see b/130135730). Matching change: aosp/932138 Note that: - perfetto cmdline can already access the consumer socket (to start tracing sessions). - The producer socket is already exposed to most domains, including unprivileged apps. Bug: 130135730 Bug: 128966650 Change-Id: Id9106279584798e6689102085fa46a0b7ecb1ba7
75 lines
2.7 KiB
Plaintext
75 lines
2.7 KiB
Plaintext
# Perfetto command-line client. Can be used only from the domains that are
|
|
# explicitly whitelisted with a domain_auto_trans(X, perfetto_exec, perfetto).
|
|
# This command line client accesses the privileged socket of the traced
|
|
# daemon.
|
|
|
|
type perfetto_exec, system_file_type, exec_type, file_type;
|
|
type perfetto_tmpfs, file_type;
|
|
|
|
tmpfs_domain(perfetto);
|
|
|
|
# Allow to access traced's privileged consumer socket.
|
|
unix_socket_connect(perfetto, traced_consumer, traced)
|
|
|
|
# Connect to the Perfetto traced daemon as a producer. This requires
|
|
# connecting to its producer socket and obtaining a (per-process) tmpfs fd.
|
|
allow perfetto traced:fd use;
|
|
allow perfetto traced_tmpfs:file { read write getattr map };
|
|
unix_socket_connect(perfetto, traced_producer, traced)
|
|
|
|
|
|
# Allow to write and unlink traces into /data/misc/perfetto-traces.
|
|
allow perfetto perfetto_traces_data_file:dir rw_dir_perms;
|
|
allow perfetto perfetto_traces_data_file:file create_file_perms;
|
|
|
|
# Allow to access binder to pass the traces to Dropbox.
|
|
binder_use(perfetto)
|
|
binder_call(perfetto, system_server)
|
|
allow perfetto dropbox_service:service_manager find;
|
|
|
|
# Allow perfetto to read the trace config from statsd and shell
|
|
# (both root and non-root) on stdin and also to write the resulting trace to
|
|
# stdout.
|
|
allow perfetto { statsd shell su }:fd use;
|
|
allow perfetto { statsd shell su }:fifo_file { getattr read write };
|
|
|
|
# Allow to communicate use, read and write over the adb connection.
|
|
allow perfetto adbd:fd use;
|
|
allow perfetto adbd:unix_stream_socket { read write };
|
|
|
|
# allow adbd to reap perfetto
|
|
allow perfetto adbd:process { sigchld };
|
|
|
|
# Allow to access /dev/pts when launched in an adb shell.
|
|
allow perfetto devpts:chr_file rw_file_perms;
|
|
|
|
###
|
|
### Neverallow rules
|
|
###
|
|
### perfetto should NEVER do any of this
|
|
|
|
# Disallow mapping executable memory (execstack and exec are already disallowed
|
|
# globally in domain.te).
|
|
neverallow perfetto self:process execmem;
|
|
|
|
# Block device access.
|
|
neverallow perfetto dev_type:blk_file { read write };
|
|
|
|
# ptrace any other process
|
|
neverallow perfetto domain:process ptrace;
|
|
|
|
# Disallows access to other /data files.
|
|
neverallow perfetto {
|
|
data_file_type
|
|
-system_data_file
|
|
# TODO(b/72998741) Remove exemption. Further restricted in a subsequent
|
|
# neverallow. Currently only getattr and search are allowed.
|
|
-vendor_data_file
|
|
-zoneinfo_data_file
|
|
-perfetto_traces_data_file
|
|
}:dir *;
|
|
neverallow perfetto { system_data_file -perfetto_traces_data_file }:dir ~{ getattr search };
|
|
neverallow perfetto zoneinfo_data_file:dir ~r_dir_perms;
|
|
neverallow perfetto { data_file_type -zoneinfo_data_file -perfetto_traces_data_file }:lnk_file *;
|
|
neverallow perfetto { data_file_type -zoneinfo_data_file -perfetto_traces_data_file }:file ~write;
|