Merge "gs-common: add fingerprint dump" into main

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",
+}

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;
+}

fingerprint/fingerprint.mk

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+BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/fingerprint/sepolicy
+
+PRODUCT_PACKAGES += dump_fingerprint

fingerprint/init.fingerprint.dump.rc

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+on post-fs-data
+    mkdir /data/vendor/tombstones/fingerprint 0770 system system

fingerprint/sepolicy/dump_fingerprint.te

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+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;
+

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

fingerprint/sepolicy/hal_fingerprint.te

@@ -0,0 +1 @@
+allow hal_fingerprint trusty_log_device:chr_file r_file_perms;