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 +#include +#include +#include +#include + +static constexpr const char *kTombstonesDirPath = "/data/vendor/tombstones/fingerprint/"; + +int main() { + printf("------ Fingerprint tombstones ------\n"); + std::unique_ptr 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;