gs-common: add fingerprint dump
Bug: 346450599
Test: adb bugreport
Change-Id: I224171a532bba537c11e53cf46be0042038b7732
diff --git a/fingerprint/Android.bp b/fingerprint/Android.bp
new file mode 100644
index 0000000..b5bd008
--- /dev/null
+++ b/fingerprint/Android.bp
@@ -0,0 +1,21 @@
+package {
+ default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_binary {
+ name: "dump_fingerprint",
+ srcs: ["dump_fingerprint.cpp"],
+ init_rc: ["init.fingerprint.dump.rc"],
+ cflags: [
+ "-Wall",
+ "-Wextra",
+ "-Werror",
+ ],
+ shared_libs: [
+ "libbase",
+ "libdump",
+ "liblog",
+ ],
+ vendor: true,
+ relative_install_path: "dump",
+}
diff --git a/fingerprint/dump_fingerprint.cpp b/fingerprint/dump_fingerprint.cpp
new file mode 100644
index 0000000..1c8c7cd
--- /dev/null
+++ b/fingerprint/dump_fingerprint.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <android-base/file.h>
+#include <dump/pixel_dump.h>
+#include <log/log.h>
+#include <stdio.h>
+#include <string.h>
+
+static constexpr const char *kTombstonesDirPath = "/data/vendor/tombstones/fingerprint/";
+
+int main() {
+ printf("------ Fingerprint tombstones ------\n");
+ std::unique_ptr<DIR, decltype(&closedir)> tombstones_dir(opendir(kTombstonesDirPath), closedir);
+ if (tombstones_dir) {
+ dirent *entry;
+ while ((entry = readdir(tombstones_dir.get())) != nullptr) {
+ std::string file_name(entry->d_name);
+ if (!strcmp(file_name.c_str(), ".") || !strcmp(file_name.c_str(), ".."))
+ continue;
+ std::string file_path(kTombstonesDirPath + file_name);
+ dumpFileContent(file_name.c_str(), file_path.c_str());
+ }
+ }
+
+ return 0;
+}
diff --git a/fingerprint/fingerprint.mk b/fingerprint/fingerprint.mk
new file mode 100644
index 0000000..fb3ceda
--- /dev/null
+++ b/fingerprint/fingerprint.mk
@@ -0,0 +1,3 @@
+BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/fingerprint/sepolicy
+
+PRODUCT_PACKAGES += dump_fingerprint
diff --git a/fingerprint/init.fingerprint.dump.rc b/fingerprint/init.fingerprint.dump.rc
new file mode 100644
index 0000000..f00cdc4
--- /dev/null
+++ b/fingerprint/init.fingerprint.dump.rc
@@ -0,0 +1,2 @@
+on post-fs-data
+ mkdir /data/vendor/tombstones/fingerprint 0770 system system
diff --git a/fingerprint/sepolicy/dump_fingerprint.te b/fingerprint/sepolicy/dump_fingerprint.te
new file mode 100644
index 0000000..9af033b
--- /dev/null
+++ b/fingerprint/sepolicy/dump_fingerprint.te
@@ -0,0 +1,5 @@
+pixel_bugreport(dump_fingerprint)
+
+allow dump_fingerprint fingerprint_vendor_data_file:dir r_dir_perms;
+allow dump_fingerprint fingerprint_vendor_data_file:file r_file_perms;
+
diff --git a/fingerprint/sepolicy/file_contexts b/fingerprint/sepolicy/file_contexts
new file mode 100644
index 0000000..a035703
--- /dev/null
+++ b/fingerprint/sepolicy/file_contexts
@@ -0,0 +1,2 @@
+/vendor/bin/dump/dump_fingerprint u:object_r:dump_fingerprint_exec:s0
+/data/vendor/tombstones/fingerprint(/.*)? u:object_r:fingerprint_vendor_data_file:s0
diff --git a/fingerprint/sepolicy/hal_fingerprint.te b/fingerprint/sepolicy/hal_fingerprint.te
new file mode 100644
index 0000000..6e1af7e
--- /dev/null
+++ b/fingerprint/sepolicy/hal_fingerprint.te
@@ -0,0 +1 @@
+allow hal_fingerprint trusty_log_device:chr_file r_file_perms;