6 files changed, 0 insertions, 532 deletions

diff --git a/otafault/Android.bp b/otafault/Android.bp
deleted file mode 100644
index b39d5bee2..000000000
--- a/otafault/Android.bp
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (C) 2017 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.
-
-cc_library_static {
-    name: "libotafault",
-
-    host_supported: true,
-
-    srcs: [
-        "config.cpp",
-        "ota_io.cpp",
-    ],
-
-    static_libs: [
-        "libbase",
-        "liblog",
-        "libziparchive",
-    ],
-
-    export_include_dirs: [
-        "include",
-    ],
-
-    cflags: [
-        "-D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS",
-        "-Wall",
-        "-Werror",
-        "-Wthread-safety",
-        "-Wthread-safety-negative",
-    ],
-
-    target: {
-        darwin: {
-            enabled: false,
-        },
-    },
-}
-
-cc_test {
-    name: "otafault_test",
-
-    srcs: ["test.cpp"],
-
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
-
-    static_executable: true,
-
-    static_libs: [
-        "libotafault",
-        "libziparchive",
-        "libbase",
-        "liblog",
-    ],
-}
diff --git a/otafault/config.cpp b/otafault/config.cpp
deleted file mode 100644
index 3993948ff..000000000
--- a/otafault/config.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2015 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 "otafault/config.h"
-
-#include <map>
-#include <string>
-
-#include <android-base/stringprintf.h>
-#include <ziparchive/zip_archive.h>
-
-#include "otafault/ota_io.h"
-
-#define OTAIO_MAX_FNAME_SIZE 128
-
-static ZipArchiveHandle archive;
-static bool is_retry = false;
-static std::map<std::string, bool> should_inject_cache;
-
-static std::string get_type_path(const char* io_type) {
-    return android::base::StringPrintf("%s/%s", OTAIO_BASE_DIR, io_type);
-}
-
-void ota_io_init(ZipArchiveHandle za, bool retry) {
-    archive = za;
-    is_retry = retry;
-    ota_set_fault_files();
-}
-
-bool should_fault_inject(const char* io_type) {
-    // archive will be NULL if we used an entry point other
-    // than updater/updater.cpp:main
-    if (archive == nullptr || is_retry) {
-        return false;
-    }
-    const std::string type_path = get_type_path(io_type);
-    if (should_inject_cache.find(type_path) != should_inject_cache.end()) {
-        return should_inject_cache[type_path];
-    }
-    ZipString zip_type_path(type_path.c_str());
-    ZipEntry entry;
-    int status = FindEntry(archive, zip_type_path, &entry);
-    should_inject_cache[type_path] = (status == 0);
-    return (status == 0);
-}
-
-bool should_hit_cache() {
-    return should_fault_inject(OTAIO_CACHE);
-}
-
-std::string fault_fname(const char* io_type) {
-    std::string type_path = get_type_path(io_type);
-    std::string fname;
-    fname.resize(OTAIO_MAX_FNAME_SIZE);
-    ZipString zip_type_path(type_path.c_str());
-    ZipEntry entry;
-    if (FindEntry(archive, zip_type_path, &entry) != 0) {
-        return {};
-    }
-    ExtractToMemory(archive, &entry, reinterpret_cast<uint8_t*>(&fname[0]), OTAIO_MAX_FNAME_SIZE);
-    return fname;
-}
diff --git a/otafault/include/otafault/config.h b/otafault/include/otafault/config.h
deleted file mode 100644
index cc4bfd2ad..000000000
--- a/otafault/include/otafault/config.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-
-/*
- * Read configuration files in the OTA package to determine which files, if any, will trigger
- * errors.
- *
- * OTA packages can be modified to trigger errors by adding a top-level directory called
- * .libotafault, which may optionally contain up to three files called READ, WRITE, and FSYNC.
- * Each one of these optional files contains the name of a single file on the device disk which
- * will cause an IO error on the first call of the appropriate I/O action to that file.
- *
- * Example:
- * ota.zip
- *   <normal package contents>
- *   .libotafault
- *     WRITE
- *
- * If the contents of the file WRITE were /system/build.prop, the first write action to
- * /system/build.prop would fail with EIO. Note that READ and FSYNC files are absent, so these
- * actions will not cause an error.
- */
-
-#ifndef _UPDATER_OTA_IO_CFG_H_
-#define _UPDATER_OTA_IO_CFG_H_
-
-#include <string>
-
-#include <ziparchive/zip_archive.h>
-
-#define OTAIO_BASE_DIR ".libotafault"
-#define OTAIO_READ "READ"
-#define OTAIO_WRITE "WRITE"
-#define OTAIO_FSYNC "FSYNC"
-#define OTAIO_CACHE "CACHE"
-
-/*
- * Initialize libotafault by providing a reference to the OTA package.
- */
-void ota_io_init(ZipArchiveHandle zip, bool retry);
-
-/*
- * Return true if a config file is present for the given IO type.
- */
-bool should_fault_inject(const char* io_type);
-
-/*
- * Return true if an EIO should occur on the next hit to /cache/saved.file
- * instead of the next hit to the specified file.
- */
-bool should_hit_cache();
-
-/*
- * Return the name of the file that should cause an error for the
- * given IO type.
- */
-std::string fault_fname(const char* io_type);
-
-#endif
diff --git a/otafault/include/otafault/ota_io.h b/otafault/include/otafault/ota_io.h
deleted file mode 100644
index 45e481a62..000000000
--- a/otafault/include/otafault/ota_io.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-
-/*
- * Provide a series of proxy functions for basic file accessors.
- * The behavior of these functions can be changed to return different
- * errors under a variety of conditions.
- */
-
-#ifndef _UPDATER_OTA_IO_H_
-#define _UPDATER_OTA_IO_H_
-
-#include <stddef.h>
-#include <stdio.h>
-#include <sys/stat.h>  // mode_t
-
-#include <memory>
-
-#include <android-base/unique_fd.h>
-
-#define OTAIO_CACHE_FNAME "/cache/saved.file"
-
-void ota_set_fault_files();
-
-int ota_open(const char* path, int oflags);
-
-int ota_open(const char* path, int oflags, mode_t mode);
-
-FILE* ota_fopen(const char* filename, const char* mode);
-
-size_t ota_fread(void* ptr, size_t size, size_t nitems, FILE* stream);
-
-ssize_t ota_read(int fd, void* buf, size_t nbyte);
-
-size_t ota_fwrite(const void* ptr, size_t size, size_t count, FILE* stream);
-
-ssize_t ota_write(int fd, const void* buf, size_t nbyte);
-
-int ota_fsync(int fd);
-
-struct OtaCloser {
-  static void Close(int);
-};
-
-using unique_fd = android::base::unique_fd_impl<OtaCloser>;
-
-int ota_close(unique_fd& fd);
-
-struct OtaFcloser {
-  void operator()(FILE*) const;
-};
-
-using unique_file = std::unique_ptr<FILE, OtaFcloser>;
-
-int ota_fclose(unique_file& fh);
-
-#endif
diff --git a/otafault/ota_io.cpp b/otafault/ota_io.cpp
deleted file mode 100644
index 63ef18e26..000000000
--- a/otafault/ota_io.cpp
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright (C) 2015 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 "otafault/ota_io.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <map>
-#include <mutex>
-#include <string>
-
-#include <android-base/thread_annotations.h>
-
-#include "otafault/config.h"
-
-static std::mutex filename_mutex;
-static std::map<intptr_t, const char*> filename_cache GUARDED_BY(filename_mutex);
-static std::string read_fault_file_name = "";
-static std::string write_fault_file_name = "";
-static std::string fsync_fault_file_name = "";
-
-static bool get_hit_file(const char* cached_path, const std::string& ffn) {
-    return should_hit_cache()
-        ? !strncmp(cached_path, OTAIO_CACHE_FNAME, strlen(cached_path))
-        : !strncmp(cached_path, ffn.c_str(), strlen(cached_path));
-}
-
-void ota_set_fault_files() {
-    if (should_fault_inject(OTAIO_READ)) {
-        read_fault_file_name = fault_fname(OTAIO_READ);
-    }
-    if (should_fault_inject(OTAIO_WRITE)) {
-        write_fault_file_name = fault_fname(OTAIO_WRITE);
-    }
-    if (should_fault_inject(OTAIO_FSYNC)) {
-        fsync_fault_file_name = fault_fname(OTAIO_FSYNC);
-    }
-}
-
-bool have_eio_error = false;
-
-int ota_open(const char* path, int oflags) {
-    // Let the caller handle errors; we do not care if open succeeds or fails
-    int fd = open(path, oflags);
-    std::lock_guard<std::mutex> lock(filename_mutex);
-    filename_cache[fd] = path;
-    return fd;
-}
-
-int ota_open(const char* path, int oflags, mode_t mode) {
-    int fd = open(path, oflags, mode);
-    std::lock_guard<std::mutex> lock(filename_mutex);
-    filename_cache[fd] = path;
-    return fd;
-}
-
-FILE* ota_fopen(const char* path, const char* mode) {
-    FILE* fh = fopen(path, mode);
-    std::lock_guard<std::mutex> lock(filename_mutex);
-    filename_cache[(intptr_t)fh] = path;
-    return fh;
-}
-
-static int __ota_close(int fd) {
-    // descriptors can be reused, so make sure not to leave them in the cache
-    std::lock_guard<std::mutex> lock(filename_mutex);
-    filename_cache.erase(fd);
-    return close(fd);
-}
-
-void OtaCloser::Close(int fd) {
-    __ota_close(fd);
-}
-
-int ota_close(unique_fd& fd) {
-    return __ota_close(fd.release());
-}
-
-static int __ota_fclose(FILE* fh) {
-    std::lock_guard<std::mutex> lock(filename_mutex);
-    filename_cache.erase(reinterpret_cast<intptr_t>(fh));
-    return fclose(fh);
-}
-
-void OtaFcloser::operator()(FILE* f) const {
-    __ota_fclose(f);
-};
-
-int ota_fclose(unique_file& fh) {
-  return __ota_fclose(fh.release());
-}
-
-size_t ota_fread(void* ptr, size_t size, size_t nitems, FILE* stream) {
-    if (should_fault_inject(OTAIO_READ)) {
-        std::lock_guard<std::mutex> lock(filename_mutex);
-        auto cached = filename_cache.find((intptr_t)stream);
-        const char* cached_path = cached->second;
-        if (cached != filename_cache.end() &&
-                get_hit_file(cached_path, read_fault_file_name)) {
-            read_fault_file_name = "";
-            errno = EIO;
-            have_eio_error = true;
-            return 0;
-        }
-    }
-    size_t status = fread(ptr, size, nitems, stream);
-    // If I/O error occurs, set the retry-update flag.
-    if (status != nitems && errno == EIO) {
-        have_eio_error = true;
-    }
-    return status;
-}
-
-ssize_t ota_read(int fd, void* buf, size_t nbyte) {
-    if (should_fault_inject(OTAIO_READ)) {
-        std::lock_guard<std::mutex> lock(filename_mutex);
-        auto cached = filename_cache.find(fd);
-        const char* cached_path = cached->second;
-        if (cached != filename_cache.end()
-                && get_hit_file(cached_path, read_fault_file_name)) {
-            read_fault_file_name = "";
-            errno = EIO;
-            have_eio_error = true;
-            return -1;
-        }
-    }
-    ssize_t status = read(fd, buf, nbyte);
-    if (status == -1 && errno == EIO) {
-        have_eio_error = true;
-    }
-    return status;
-}
-
-size_t ota_fwrite(const void* ptr, size_t size, size_t count, FILE* stream) {
-    if (should_fault_inject(OTAIO_WRITE)) {
-        std::lock_guard<std::mutex> lock(filename_mutex);
-        auto cached = filename_cache.find((intptr_t)stream);
-        const char* cached_path = cached->second;
-        if (cached != filename_cache.end() &&
-                get_hit_file(cached_path, write_fault_file_name)) {
-            write_fault_file_name = "";
-            errno = EIO;
-            have_eio_error = true;
-            return 0;
-        }
-    }
-    size_t status = fwrite(ptr, size, count, stream);
-    if (status != count && errno == EIO) {
-        have_eio_error = true;
-    }
-    return status;
-}
-
-ssize_t ota_write(int fd, const void* buf, size_t nbyte) {
-    if (should_fault_inject(OTAIO_WRITE)) {
-        std::lock_guard<std::mutex> lock(filename_mutex);
-        auto cached = filename_cache.find(fd);
-        const char* cached_path = cached->second;
-        if (cached != filename_cache.end() &&
-                get_hit_file(cached_path, write_fault_file_name)) {
-            write_fault_file_name = "";
-            errno = EIO;
-            have_eio_error = true;
-            return -1;
-        }
-    }
-    ssize_t status = write(fd, buf, nbyte);
-    if (status == -1 && errno == EIO) {
-        have_eio_error = true;
-    }
-    return status;
-}
-
-int ota_fsync(int fd) {
-    if (should_fault_inject(OTAIO_FSYNC)) {
-        std::lock_guard<std::mutex> lock(filename_mutex);
-        auto cached = filename_cache.find(fd);
-        const char* cached_path = cached->second;
-        if (cached != filename_cache.end() &&
-                get_hit_file(cached_path, fsync_fault_file_name)) {
-            fsync_fault_file_name = "";
-            errno = EIO;
-            have_eio_error = true;
-            return -1;
-        }
-    }
-    int status = fsync(fd);
-    if (status == -1 && errno == EIO) {
-        have_eio_error = true;
-    }
-    return status;
-}
-
diff --git a/otafault/test.cpp b/otafault/test.cpp
deleted file mode 100644
index 63e2445af..000000000
--- a/otafault/test.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2015 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 <fcntl.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "otafault/ota_io.h"
-
-int main(int /* argc */, char** /* argv */) {
-    int fd = open("testdata/test.file", O_RDWR);
-    char buf[8];
-    const char* out = "321";
-    int readv = ota_read(fd, buf, 4);
-    printf("Read returned %d\n", readv);
-    int writev = ota_write(fd, out, 4);
-    printf("Write returned %d\n", writev);
-    close(fd);
-    return 0;
-}