Introduce Pixel mailbox module

Introduce Pixel mailbox module to dump debugging messages and integrate
with bugreport.
This patch also create sepolicy files to avoid avc denied.

avc:  denied  { search } for  comm="dump_mailbox" name="radio" dev="dm-57" ino=375 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=dir permissive=1
avc:  denied  { search } for  comm="dump_mailbox" name="instances" dev="tracefs" ino=4203 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:debugfs_tracing_instances:s0 tclass=dir permissive=1
avc:  denied  { read } for  comm="dump_mailbox" name="trace" dev="tracefs" ino=7250 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:debugfs_tracing_instances:s0 tclass=file permissive=1
avc:  denied  { open } for  comm="dump_mailbox" path="/sys/kernel/tracing/instances/goog_cpm_mailbox/trace" dev="tracefs" ino=7187 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:debugfs_traci
avc:  denied  { create } for  comm="dump_mailbox" name="goog_cpm_mailbox_trace" scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=file permissive=1
avc:  denied  { write open } for  comm="dump_mailbox" path="/data/vendor/radio/logs/always-on/all_logs/mailbox/goog_cpm_mailbox_trace" dev="dm-52" ino=29097 scontext=u:r:dump_mailbox:s0 tcontex=1
avc:  denied  { getattr } for  comm="dump_mailbox" path="/data/vendor/radio/logs/always-on/all_logs/mailbox/goog_cpm_mailbox_trace" dev="dm-52" ino=29097 scontext=u:r:dump_mailbox:s0 tcontext=ut=5 audit_backlog_limit=64
=1
avc:  denied  { read } for  comm="dump_mailbox" name="trace" dev="tracefs" ino=5239 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:debugfs_tracing_instances_mailbox:s0 tclass=file permissive=1
avc:  denied  { open } for  comm="dump_mailbox" path="/sys/kernel/tracing/instances/goog_cpm_mailbox/trace" dev="tracefs" ino=5239 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:debugfs_tracing_instances_mailbox:s0 tclass=file permissive=1
avc:  denied  { create } for  comm="dump_mailbox" name="goog_cpm_mailbox_trace" scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=file permissive=1
avc:  denied  { write open } for  comm="dump_mailbox" path="/data/vendor/radio/logs/always-on/all_logs/mailbox/goog_cpm_mailbox_trace" dev="dm-52" ino=30937 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=file permissive=1
avc:  denied  { getattr } for  comm="dump_mailbox" path="/sys/kernel/tracing/instances/goog_cpm_mailbox/trace" dev="tracefs" ino=5239 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:debugfs_tracing_instances_mailbox:s0 tclass=file permissive=1
avc:  denied  { getattr } for  comm="dump_mailbox" path="/data/vendor/radio/logs/always-on/all_logs/mailbox/goog_cpm_mailbox_trace" dev="dm-52" ino=30937 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=file permissive=1
avc:  denied  { create } for  comm="dump_mailbox" name="goog_cpm_mailbox_trace" scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclas(6 results) 15:39:41 [4796/19306]
avc:  denied  { write open } for  comm="dump_mailbox" path="/data/vendor/radio/logs/always-on/all_logs/mailbox/goog_cpm_mailbox_trace" dev="dm-52" ino=32864 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=file permissive=1
avc:  denied  { getattr } for  comm="dump_mailbox" path="/data/vendor/radio/logs/always-on/all_logs/mailbox/goog_cpm_mailbox_trace" dev="dm-52" ino=32864 scontext=u:r:dump_mailbox:s0 tcontext=u:object_r:radio_vendor_data_file:s0 tclass=file permissive=1

Flag: EXEMPT, add mailbox dump program to bugreport
Bug: 363168077
Change-Id: I622f37bf8f913df8d9b242ab206fc267d446753d
diff --git a/mailbox/Android.bp b/mailbox/Android.bp
new file mode 100644
index 0000000..6969685
--- /dev/null
+++ b/mailbox/Android.bp
@@ -0,0 +1,21 @@
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_binary {
+    name: "dump_mailbox",
+    srcs: ["dump/dump_mailbox.cpp"],
+    init_rc: ["init.mailbox.rc"],
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+    shared_libs: [
+        "libbase",
+        "libdump",
+        "liblog",
+    ],
+    vendor: true,
+    relative_install_path: "dump",
+}