am 7d86b454: Merge "frameworks/native: move idmap to frameworks/base"
* commit '7d86b45472898373bbe3ef03286b66d71ea82b79':
frameworks/native: move idmap to frameworks/base
diff --git a/cmds/idmap/Android.mk b/cmds/idmap/Android.mk
deleted file mode 100644
index ffa83f2..0000000
--- a/cmds/idmap/Android.mk
+++ /dev/null
@@ -1,28 +0,0 @@
-# Copyright (C) 2012 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.
-
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := idmap.cpp create.cpp scan.cpp inspect.cpp
-
-LOCAL_SHARED_LIBRARIES := liblog libutils libandroidfw
-
-LOCAL_MODULE := idmap
-
-LOCAL_C_INCLUDES := external/zlib
-
-LOCAL_MODULE_TAGS := optional
-
-include $(BUILD_EXECUTABLE)
diff --git a/cmds/idmap/create.cpp b/cmds/idmap/create.cpp
deleted file mode 100644
index ae35f7b..0000000
--- a/cmds/idmap/create.cpp
+++ /dev/null
@@ -1,222 +0,0 @@
-#include "idmap.h"
-
-#include <UniquePtr.h>
-#include <androidfw/AssetManager.h>
-#include <androidfw/ResourceTypes.h>
-#include <androidfw/ZipFileRO.h>
-#include <utils/String8.h>
-
-#include <fcntl.h>
-#include <sys/stat.h>
-
-using namespace android;
-
-namespace {
- int get_zip_entry_crc(const char *zip_path, const char *entry_name, uint32_t *crc)
- {
- UniquePtr<ZipFileRO> zip(ZipFileRO::open(zip_path));
- if (zip.get() == NULL) {
- return -1;
- }
- ZipEntryRO entry = zip->findEntryByName(entry_name);
- if (entry == NULL) {
- return -1;
- }
- if (!zip->getEntryInfo(entry, NULL, NULL, NULL, NULL, NULL, (long*)crc)) {
- return -1;
- }
- zip->releaseEntry(entry);
- return 0;
- }
-
- int open_idmap(const char *path)
- {
- int fd = TEMP_FAILURE_RETRY(open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644));
- if (fd == -1) {
- ALOGD("error: open %s: %s\n", path, strerror(errno));
- goto fail;
- }
- if (fchmod(fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) < 0) {
- ALOGD("error: fchmod %s: %s\n", path, strerror(errno));
- goto fail;
- }
- if (TEMP_FAILURE_RETRY(flock(fd, LOCK_EX | LOCK_NB)) != 0) {
- ALOGD("error: flock %s: %s\n", path, strerror(errno));
- goto fail;
- }
-
- return fd;
-fail:
- if (fd != -1) {
- close(fd);
- unlink(path);
- }
- return -1;
- }
-
- int write_idmap(int fd, const uint32_t *data, size_t size)
- {
- if (lseek(fd, SEEK_SET, 0) < 0) {
- return -1;
- }
- size_t bytesLeft = size;
- while (bytesLeft > 0) {
- ssize_t w = TEMP_FAILURE_RETRY(write(fd, data + size - bytesLeft, bytesLeft));
- if (w < 0) {
- fprintf(stderr, "error: write: %s\n", strerror(errno));
- return -1;
- }
- bytesLeft -= w;
- }
- return 0;
- }
-
- bool is_idmap_stale_fd(const char *target_apk_path, const char *overlay_apk_path, int idmap_fd)
- {
- static const size_t N = ResTable::IDMAP_HEADER_SIZE_BYTES;
- struct stat st;
- if (fstat(idmap_fd, &st) == -1) {
- return true;
- }
- if (st.st_size < N) {
- // file is empty or corrupt
- return true;
- }
-
- char buf[N];
- ssize_t bytesLeft = N;
- if (lseek(idmap_fd, SEEK_SET, 0) < 0) {
- return true;
- }
- for (;;) {
- ssize_t r = TEMP_FAILURE_RETRY(read(idmap_fd, buf + N - bytesLeft, bytesLeft));
- if (r < 0) {
- return true;
- }
- bytesLeft -= r;
- if (bytesLeft == 0) {
- break;
- }
- if (r == 0) {
- // "shouldn't happen"
- return true;
- }
- }
-
- uint32_t cached_target_crc, cached_overlay_crc;
- String8 cached_target_path, cached_overlay_path;
- if (!ResTable::getIdmapInfo(buf, N, &cached_target_crc, &cached_overlay_crc,
- &cached_target_path, &cached_overlay_path)) {
- return true;
- }
-
- if (cached_target_path != target_apk_path) {
- return true;
- }
- if (cached_overlay_path != overlay_apk_path) {
- return true;
- }
-
- uint32_t actual_target_crc, actual_overlay_crc;
- if (get_zip_entry_crc(target_apk_path, AssetManager::RESOURCES_FILENAME,
- &actual_target_crc) == -1) {
- return true;
- }
- if (get_zip_entry_crc(overlay_apk_path, AssetManager::RESOURCES_FILENAME,
- &actual_overlay_crc) == -1) {
- return true;
- }
-
- return cached_target_crc != actual_target_crc || cached_overlay_crc != actual_overlay_crc;
- }
-
- bool is_idmap_stale_path(const char *target_apk_path, const char *overlay_apk_path,
- const char *idmap_path)
- {
- struct stat st;
- if (stat(idmap_path, &st) == -1) {
- // non-existing idmap is always stale; on other errors, abort idmap generation
- return errno == ENOENT;
- }
-
- int idmap_fd = TEMP_FAILURE_RETRY(open(idmap_path, O_RDONLY));
- if (idmap_fd == -1) {
- return false;
- }
- bool is_stale = is_idmap_stale_fd(target_apk_path, overlay_apk_path, idmap_fd);
- close(idmap_fd);
- return is_stale;
- }
-
- int create_idmap(const char *target_apk_path, const char *overlay_apk_path,
- uint32_t **data, size_t *size)
- {
- uint32_t target_crc, overlay_crc;
- if (get_zip_entry_crc(target_apk_path, AssetManager::RESOURCES_FILENAME,
- &target_crc) == -1) {
- return -1;
- }
- if (get_zip_entry_crc(overlay_apk_path, AssetManager::RESOURCES_FILENAME,
- &overlay_crc) == -1) {
- return -1;
- }
-
- AssetManager am;
- bool b = am.createIdmap(target_apk_path, overlay_apk_path, target_crc, overlay_crc,
- data, size);
- return b ? 0 : -1;
- }
-
- int create_and_write_idmap(const char *target_apk_path, const char *overlay_apk_path,
- int fd, bool check_if_stale)
- {
- if (check_if_stale) {
- if (!is_idmap_stale_fd(target_apk_path, overlay_apk_path, fd)) {
- // already up to date -- nothing to do
- return 0;
- }
- }
-
- uint32_t *data = NULL;
- size_t size;
-
- if (create_idmap(target_apk_path, overlay_apk_path, &data, &size) == -1) {
- return -1;
- }
-
- if (write_idmap(fd, data, size) == -1) {
- free(data);
- return -1;
- }
-
- free(data);
- return 0;
- }
-}
-
-int idmap_create_path(const char *target_apk_path, const char *overlay_apk_path,
- const char *idmap_path)
-{
- if (!is_idmap_stale_path(target_apk_path, overlay_apk_path, idmap_path)) {
- // already up to date -- nothing to do
- return EXIT_SUCCESS;
- }
-
- int fd = open_idmap(idmap_path);
- if (fd == -1) {
- return EXIT_FAILURE;
- }
-
- int r = create_and_write_idmap(target_apk_path, overlay_apk_path, fd, false);
- close(fd);
- if (r != 0) {
- unlink(idmap_path);
- }
- return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
-}
-
-int idmap_create_fd(const char *target_apk_path, const char *overlay_apk_path, int fd)
-{
- return create_and_write_idmap(target_apk_path, overlay_apk_path, fd, true) == 0 ?
- EXIT_SUCCESS : EXIT_FAILURE;
-}
diff --git a/cmds/idmap/idmap.cpp b/cmds/idmap/idmap.cpp
deleted file mode 100644
index 46c0edc..0000000
--- a/cmds/idmap/idmap.cpp
+++ /dev/null
@@ -1,237 +0,0 @@
-#include "idmap.h"
-
-#include <private/android_filesystem_config.h> // for AID_SYSTEM
-
-#include <stdlib.h>
-#include <string.h>
-
-namespace {
- const char *usage = "NAME\n\
- idmap - create or display idmap files\n\
-\n\
-SYNOPSIS \n\
- idmap --help \n\
- idmap --fd target overlay fd \n\
- idmap --path target overlay idmap \n\
- idmap --scan dir-to-scan target-to-look-for target dir-to-hold-idmaps \n\
- idmap --inspect idmap \n\
-\n\
-DESCRIPTION \n\
- Idmap files play an integral part in the runtime resource overlay framework. An idmap \n\
- file contains a mapping of resource identifiers between overlay package and its target \n\
- package; this mapping is used during resource lookup. Idmap files also act as control \n\
- files by their existence: if not present, the corresponding overlay package is ignored \n\
- when the resource context is created. \n\
-\n\
- Idmap files are stored in /data/resource-cache. For each pair (target package, overlay \n\
- package), there exists exactly one idmap file, or none if the overlay should not be used. \n\
-\n\
-NOMENCLATURE \n\
- target: the original, non-overlay, package. Each target package may be associated with \n\
- any number of overlay packages. \n\
-\n\
- overlay: an overlay package. Each overlay package is associated with exactly one target \n\
- package, specified in the overlay's manifest using the <overlay target=\"...\"/> \n\
- tag. \n\
-\n\
-OPTIONS \n\
- --help: display this help \n\
-\n\
- --fd: create idmap for target package 'target' (path to apk) and overlay package 'overlay' \n\
- (path to apk); write results to file descriptor 'fd' (integer). This invocation \n\
- version is intended to be used by a parent process with higher privileges to call \n\
- idmap in a controlled way: the parent will open a suitable file descriptor, fork, \n\
- drop its privileges and exec. This tool will continue execution without the extra \n\
- privileges, but still have write access to a file it could not have opened on its \n\
- own. \n\
-\n\
- --path: create idmap for target package 'target' (path to apk) and overlay package \n\
- 'overlay' (path to apk); write results to 'idmap' (path). \n\
-\n\
- --scan: non-recursively search directory 'dir-to-scan' (path) for overlay packages with \n\
- target package 'target-to-look-for' (package name) present at 'target' (path to \n\
- apk). For each overlay package found, create an idmap file in 'dir-to-hold-idmaps' \n\
- (path). \n\
-\n\
- --inspect: decode the binary format of 'idmap' (path) and display the contents in a \n\
- debug-friendly format. \n\
-\n\
-EXAMPLES \n\
- Create an idmap file: \n\
-\n\
- $ adb shell idmap --path /system/app/target.apk \\ \n\
- /vendor/overlay/overlay.apk \\ \n\
- /data/resource-cache/vendor@overlay@overlay.apk@idmap \n\
-\n\
- Display an idmap file: \n\
-\n\
- $ adb shell idmap --inspect /data/resource-cache/vendor@overlay@overlay.apk@idmap \n\
- SECTION ENTRY VALUE OFFSET COMMENT \n\
- IDMAP HEADER magic 0x706d6469 0x0 \n\
- base crc 0x484aa77f 0x1 \n\
- overlay crc 0x03c66fa5 0x2 \n\
- base path .......... 0x03-0x42 /system/app/target.apk \n\
- overlay path .......... 0x43-0x82 /vendor/overlay/overlay.apk \n\
- DATA HEADER types count 0x00000003 0x83 \n\
- padding 0x00000000 0x84 \n\
- type offset 0x00000004 0x85 absolute offset 0x87, xml \n\
- type offset 0x00000007 0x86 absolute offset 0x8a, string \n\
- DATA BLOCK entry count 0x00000001 0x87 \n\
- entry offset 0x00000000 0x88 \n\
- entry 0x7f020000 0x89 xml/integer \n\
- DATA BLOCK entry count 0x00000002 0x8a \n\
- entry offset 0x00000000 0x8b \n\
- entry 0x7f030000 0x8c string/str \n\
- entry 0x7f030001 0x8d string/str2 \n\
-\n\
- In this example, the overlay package provides three alternative resource values:\n\
- xml/integer, string/str and string/str2.\n\
-\n\
-NOTES \n\
- This tool and its expected invocation from installd is modelled on dexopt.";
-
- bool verify_directory_readable(const char *path)
- {
- return access(path, R_OK | X_OK) == 0;
- }
-
- bool verify_directory_writable(const char *path)
- {
- return access(path, W_OK) == 0;
- }
-
- bool verify_file_readable(const char *path)
- {
- return access(path, R_OK) == 0;
- }
-
- bool verify_root_or_system()
- {
- uid_t uid = getuid();
- gid_t gid = getgid();
-
- return (uid == 0 && gid == 0) || (uid == AID_SYSTEM && gid == AID_SYSTEM);
- }
-
- int maybe_create_fd(const char *target_apk_path, const char *overlay_apk_path,
- const char *idmap_str)
- {
- // anyone (not just root or system) may do --fd -- the file has
- // already been opened by someone else on our behalf
-
- char *endptr;
- int idmap_fd = strtol(idmap_str, &endptr, 10);
- if (*endptr != '\0') {
- fprintf(stderr, "error: failed to parse file descriptor argument %s\n", idmap_str);
- return -1;
- }
-
- if (!verify_file_readable(target_apk_path)) {
- ALOGD("error: failed to read apk %s: %s\n", target_apk_path, strerror(errno));
- return -1;
- }
-
- if (!verify_file_readable(overlay_apk_path)) {
- ALOGD("error: failed to read apk %s: %s\n", overlay_apk_path, strerror(errno));
- return -1;
- }
-
- return idmap_create_fd(target_apk_path, overlay_apk_path, idmap_fd);
- }
-
- int maybe_create_path(const char *target_apk_path, const char *overlay_apk_path,
- const char *idmap_path)
- {
- if (!verify_root_or_system()) {
- fprintf(stderr, "error: permission denied: not user root or user system\n");
- return -1;
- }
-
- if (!verify_file_readable(target_apk_path)) {
- ALOGD("error: failed to read apk %s: %s\n", target_apk_path, strerror(errno));
- return -1;
- }
-
- if (!verify_file_readable(overlay_apk_path)) {
- ALOGD("error: failed to read apk %s: %s\n", overlay_apk_path, strerror(errno));
- return -1;
- }
-
- return idmap_create_path(target_apk_path, overlay_apk_path, idmap_path);
- }
-
- int maybe_scan(const char *overlay_dir, const char *target_package_name,
- const char *target_apk_path, const char *idmap_dir)
- {
- if (!verify_root_or_system()) {
- fprintf(stderr, "error: permission denied: not user root or user system\n");
- return -1;
- }
-
- if (!verify_directory_readable(overlay_dir)) {
- ALOGD("error: no read access to %s: %s\n", overlay_dir, strerror(errno));
- return -1;
- }
-
- if (!verify_file_readable(target_apk_path)) {
- ALOGD("error: failed to read apk %s: %s\n", target_apk_path, strerror(errno));
- return -1;
- }
-
- if (!verify_directory_writable(idmap_dir)) {
- ALOGD("error: no write access to %s: %s\n", idmap_dir, strerror(errno));
- return -1;
- }
-
- return idmap_scan(overlay_dir, target_package_name, target_apk_path, idmap_dir);
- }
-
- int maybe_inspect(const char *idmap_path)
- {
- // anyone (not just root or system) may do --inspect
- if (!verify_file_readable(idmap_path)) {
- ALOGD("error: failed to read idmap %s: %s\n", idmap_path, strerror(errno));
- return -1;
- }
- return idmap_inspect(idmap_path);
- }
-}
-
-int main(int argc, char **argv)
-{
-#if 0
- {
- char buf[1024];
- buf[0] = '\0';
- for (int i = 0; i < argc; ++i) {
- strncat(buf, argv[i], sizeof(buf) - 1);
- strncat(buf, " ", sizeof(buf) - 1);
- }
- ALOGD("%s:%d: uid=%d gid=%d argv=%s\n", __FILE__, __LINE__, getuid(), getgid(), buf);
- }
-#endif
-
- if (argc == 2 && !strcmp(argv[1], "--help")) {
- printf("%s\n", usage);
- return 0;
- }
-
- if (argc == 5 && !strcmp(argv[1], "--fd")) {
- return maybe_create_fd(argv[2], argv[3], argv[4]);
- }
-
- if (argc == 5 && !strcmp(argv[1], "--path")) {
- return maybe_create_path(argv[2], argv[3], argv[4]);
- }
-
- if (argc == 6 && !strcmp(argv[1], "--scan")) {
- return maybe_scan(argv[2], argv[3], argv[4], argv[5]);
- }
-
- if (argc == 3 && !strcmp(argv[1], "--inspect")) {
- return maybe_inspect(argv[2]);
- }
-
- fprintf(stderr, "Usage: don't use this (cf dexopt usage).\n");
- return EXIT_FAILURE;
-}
diff --git a/cmds/idmap/idmap.h b/cmds/idmap/idmap.h
deleted file mode 100644
index f507dd8..0000000
--- a/cmds/idmap/idmap.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#ifndef _IDMAP_H_
-#define _IDMAP_H_
-
-#define LOG_TAG "idmap"
-
-#include <utils/Log.h>
-
-#include <errno.h>
-#include <stdio.h>
-
-#ifndef TEMP_FAILURE_RETRY
-// Used to retry syscalls that can return EINTR.
-#define TEMP_FAILURE_RETRY(exp) ({ \
- typeof (exp) _rc; \
- do { \
- _rc = (exp); \
- } while (_rc == -1 && errno == EINTR); \
- _rc; })
-#endif
-
-int idmap_create_path(const char *target_apk_path, const char *overlay_apk_path,
- const char *idmap_path);
-
-int idmap_create_fd(const char *target_apk_path, const char *overlay_apk_path, int fd);
-
-// Regarding target_package_name: the idmap_scan implementation should
-// be able to extract this from the manifest in target_apk_path,
-// simplifying the external API.
-int idmap_scan(const char *overlay_dir, const char *target_package_name,
- const char *target_apk_path, const char *idmap_dir);
-
-int idmap_inspect(const char *idmap_path);
-
-#endif // _IDMAP_H_
diff --git a/cmds/idmap/inspect.cpp b/cmds/idmap/inspect.cpp
deleted file mode 100644
index a59f5d3..0000000
--- a/cmds/idmap/inspect.cpp
+++ /dev/null
@@ -1,291 +0,0 @@
-#include "idmap.h"
-
-#include <androidfw/AssetManager.h>
-#include <androidfw/ResourceTypes.h>
-#include <utils/String8.h>
-
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-
-using namespace android;
-
-#define NEXT(b, i, o) do { if (buf.next(&i, &o) < 0) { return -1; } } while (0)
-
-namespace {
- static const uint32_t IDMAP_MAGIC = 0x706d6469;
- static const size_t PATH_LENGTH = 256;
- static const uint32_t IDMAP_HEADER_SIZE = (3 + 2 * (PATH_LENGTH / sizeof(uint32_t)));
-
- void printe(const char *fmt, ...);
-
- class IdmapBuffer {
- private:
- char *buf_;
- size_t len_;
- mutable size_t pos_;
- public:
- IdmapBuffer() : buf_((char *)MAP_FAILED), len_(0), pos_(0) {}
-
- ~IdmapBuffer() {
- if (buf_ != MAP_FAILED) {
- munmap(buf_, len_);
- }
- }
-
- int init(const char *idmap_path)
- {
- struct stat st;
- int fd;
-
- if (stat(idmap_path, &st) < 0) {
- printe("failed to stat idmap '%s': %s\n", idmap_path, strerror(errno));
- return -1;
- }
- len_ = st.st_size;
- if ((fd = TEMP_FAILURE_RETRY(open(idmap_path, O_RDONLY))) < 0) {
- printe("failed to open idmap '%s': %s\n", idmap_path, strerror(errno));
- return -1;
- }
- if ((buf_ = (char*)mmap(NULL, len_, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED) {
- close(fd);
- printe("failed to mmap idmap: %s\n", strerror(errno));
- return -1;
- }
- close(fd);
- return 0;
- }
-
- int next(uint32_t *i, uint32_t *offset) const
- {
- if (!buf_) {
- printe("failed to read next uint32_t: buffer not initialized\n");
- return -1;
- }
- if (pos_ + 4 > len_) {
- printe("failed to read next uint32_t: end of buffer reached at pos=0x%08x\n",
- pos_);
- return -1;
- }
- *offset = pos_ / sizeof(uint32_t);
- char a = buf_[pos_++];
- char b = buf_[pos_++];
- char c = buf_[pos_++];
- char d = buf_[pos_++];
- *i = (d << 24) | (c << 16) | (b << 8) | a;
- return 0;
- }
-
- int nextPath(char *b, uint32_t *offset_start, uint32_t *offset_end) const
- {
- if (!buf_) {
- printe("failed to read next path: buffer not initialized\n");
- return -1;
- }
- if (pos_ + PATH_LENGTH > len_) {
- printe("failed to read next path: end of buffer reached at pos=0x%08x\n", pos_);
- return -1;
- }
- memcpy(b, buf_ + pos_, PATH_LENGTH);
- *offset_start = pos_ / sizeof(uint32_t);
- pos_ += PATH_LENGTH;
- *offset_end = pos_ / sizeof(uint32_t) - 1;
- return 0;
- }
- };
-
- void printe(const char *fmt, ...)
- {
- va_list ap;
-
- va_start(ap, fmt);
- fprintf(stderr, "error: ");
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- }
-
- void print_header()
- {
- printf("SECTION ENTRY VALUE OFFSET COMMENT\n");
- }
-
- void print(const char *section, const char *subsection, uint32_t value, uint32_t offset,
- const char *fmt, ...)
- {
- va_list ap;
-
- va_start(ap, fmt);
- printf("%-12s %-12s 0x%08x 0x%-4x ", section, subsection, value, offset);
- vprintf(fmt, ap);
- printf("\n");
- va_end(ap);
- }
-
- void print_path(const char *section, const char *subsection, uint32_t offset_start,
- uint32_t offset_end, const char *fmt, ...)
- {
- va_list ap;
-
- va_start(ap, fmt);
- printf("%-12s %-12s .......... 0x%02x-0x%02x ", section, subsection, offset_start,
- offset_end);
- vprintf(fmt, ap);
- printf("\n");
- va_end(ap);
- }
-
- int resource_metadata(const AssetManager& am, uint32_t res_id,
- String8 *package, String8 *type, String8 *name)
- {
- const ResTable& rt = am.getResources();
- struct ResTable::resource_name data;
- if (!rt.getResourceName(res_id, false, &data)) {
- printe("failed to get resource name id=0x%08x\n", res_id);
- return -1;
- }
- if (package) {
- *package = String8(String16(data.package, data.packageLen));
- }
- if (type) {
- *type = String8(String16(data.type, data.typeLen));
- }
- if (name) {
- *name = String8(String16(data.name, data.nameLen));
- }
- return 0;
- }
-
- int package_id(const AssetManager& am)
- {
- return (am.getResources().getBasePackageId(0)) << 24;
- }
-
- int parse_idmap_header(const IdmapBuffer& buf, AssetManager& am)
- {
- uint32_t i, o, e;
- char path[PATH_LENGTH];
-
- NEXT(buf, i, o);
- if (i != IDMAP_MAGIC) {
- printe("not an idmap file: actual magic constant 0x%08x does not match expected magic "
- "constant 0x%08x\n", i, IDMAP_MAGIC);
- return -1;
- }
- print_header();
- print("IDMAP HEADER", "magic", i, o, "");
-
- NEXT(buf, i, o);
- print("", "base crc", i, o, "");
-
- NEXT(buf, i, o);
- print("", "overlay crc", i, o, "");
-
- if (buf.nextPath(path, &o, &e) < 0) {
- // printe done from IdmapBuffer::nextPath
- return -1;
- }
- print_path("", "base path", o, e, "%s", path);
- if (!am.addAssetPath(String8(path), NULL)) {
- printe("failed to add '%s' as asset path\n", path);
- return -1;
- }
-
- if (buf.nextPath(path, &o, &e) < 0) {
- // printe done from IdmapBuffer::nextPath
- return -1;
- }
- print_path("", "overlay path", o, e, "%s", path);
-
- return 0;
- }
-
- int parse_data_header(const IdmapBuffer& buf, const AssetManager& am, Vector<uint32_t>& types)
- {
- uint32_t i, o;
- const uint32_t numeric_package = package_id(am);
-
- NEXT(buf, i, o);
- print("DATA HEADER", "types count", i, o, "");
- const uint32_t N = i;
-
- for (uint32_t j = 0; j < N; ++j) {
- NEXT(buf, i, o);
- if (i == 0) {
- print("", "padding", i, o, "");
- } else {
- String8 type;
- const uint32_t numeric_type = (j + 1) << 16;
- const uint32_t res_id = numeric_package | numeric_type;
- if (resource_metadata(am, res_id, NULL, &type, NULL) < 0) {
- // printe done from resource_metadata
- return -1;
- }
- print("", "type offset", i, o, "absolute offset 0x%02x, %s",
- i + IDMAP_HEADER_SIZE, type.string());
- types.add(numeric_type);
- }
- }
-
- return 0;
- }
-
- int parse_data_block(const IdmapBuffer& buf, const AssetManager& am, size_t numeric_type)
- {
- uint32_t i, o, n, id_offset;
- const uint32_t numeric_package = package_id(am);
-
- NEXT(buf, i, o);
- print("DATA BLOCK", "entry count", i, o, "");
- n = i;
-
- NEXT(buf, i, o);
- print("", "entry offset", i, o, "");
- id_offset = i;
-
- for ( ; n > 0; --n) {
- String8 type, name;
-
- NEXT(buf, i, o);
- if (i == 0) {
- print("", "padding", i, o, "");
- } else {
- uint32_t res_id = numeric_package | numeric_type | id_offset;
- if (resource_metadata(am, res_id, NULL, &type, &name) < 0) {
- // printe done from resource_metadata
- return -1;
- }
- print("", "entry", i, o, "%s/%s", type.string(), name.string());
- }
- ++id_offset;
- }
-
- return 0;
- }
-}
-
-int idmap_inspect(const char *idmap_path)
-{
- IdmapBuffer buf;
- if (buf.init(idmap_path) < 0) {
- // printe done from IdmapBuffer::init
- return EXIT_FAILURE;
- }
- AssetManager am;
- if (parse_idmap_header(buf, am) < 0) {
- // printe done from parse_idmap_header
- return EXIT_FAILURE;
- }
- Vector<uint32_t> types;
- if (parse_data_header(buf, am, types) < 0) {
- // printe done from parse_data_header
- return EXIT_FAILURE;
- }
- const size_t N = types.size();
- for (size_t i = 0; i < N; ++i) {
- if (parse_data_block(buf, am, types.itemAt(i)) < 0) {
- // printe done from parse_data_block
- return EXIT_FAILURE;
- }
- }
- return EXIT_SUCCESS;
-}
diff --git a/cmds/idmap/scan.cpp b/cmds/idmap/scan.cpp
deleted file mode 100644
index c5fc941..0000000
--- a/cmds/idmap/scan.cpp
+++ /dev/null
@@ -1,244 +0,0 @@
-#include "idmap.h"
-
-#include <UniquePtr.h>
-#include <androidfw/ResourceTypes.h>
-#include <androidfw/StreamingZipInflater.h>
-#include <androidfw/ZipFileRO.h>
-#include <private/android_filesystem_config.h> // for AID_SYSTEM
-#include <utils/SortedVector.h>
-#include <utils/String16.h>
-#include <utils/String8.h>
-
-#include <dirent.h>
-
-#define NO_OVERLAY_TAG (-1000)
-
-using namespace android;
-
-namespace {
- struct Overlay {
- Overlay() {}
- Overlay(const String8& a, const String8& i, int p) :
- apk_path(a), idmap_path(i), priority(p) {}
-
- bool operator<(Overlay const& rhs) const
- {
- // Note: order is reversed by design
- return rhs.priority < priority;
- }
-
- String8 apk_path;
- String8 idmap_path;
- int priority;
- };
-
- bool writePackagesList(const char *filename, const SortedVector<Overlay>& overlayVector)
- {
- FILE* fout = fopen(filename, "w");
- if (fout == NULL) {
- return false;
- }
-
- for (size_t i = 0; i < overlayVector.size(); ++i) {
- const Overlay& overlay = overlayVector[i];
- fprintf(fout, "%s %s\n", overlay.apk_path.string(), overlay.idmap_path.string());
- }
-
- fclose(fout);
-
- // Make file world readable since Zygote (running as root) will read
- // it when creating the initial AssetManger object
- const mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH; // 0644
- if (chmod(filename, mode) == -1) {
- unlink(filename);
- return false;
- }
-
- return true;
- }
-
- String8 flatten_path(const char *path)
- {
- String16 tmp(path);
- tmp.replaceAll('/', '@');
- return String8(tmp);
- }
-
- int mkdir_p(const String8& path, uid_t uid, gid_t gid)
- {
- static const mode_t mode =
- S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | S_IXOTH;
- struct stat st;
-
- if (stat(path.string(), &st) == 0) {
- return 0;
- }
- if (mkdir_p(path.getPathDir(), uid, gid) < 0) {
- return -1;
- }
- if (mkdir(path.string(), 0755) != 0) {
- return -1;
- }
- if (chown(path.string(), uid, gid) == -1) {
- return -1;
- }
- if (chmod(path.string(), mode) == -1) {
- return -1;
- }
- return 0;
- }
-
- int parse_overlay_tag(const ResXMLTree& parser, const char *target_package_name)
- {
- const size_t N = parser.getAttributeCount();
- String16 target;
- int priority = -1;
- for (size_t i = 0; i < N; ++i) {
- size_t len;
- String16 key(parser.getAttributeName(i, &len));
- if (key == String16("targetPackage")) {
- const uint16_t *p = parser.getAttributeStringValue(i, &len);
- if (p) {
- target = String16(p, len);
- }
- } else if (key == String16("priority")) {
- Res_value v;
- if (parser.getAttributeValue(i, &v) == sizeof(Res_value)) {
- priority = v.data;
- if (priority < 0 || priority > 9999) {
- return -1;
- }
- }
- }
- }
- if (target == String16(target_package_name)) {
- return priority;
- }
- return NO_OVERLAY_TAG;
- }
-
- int parse_manifest(const void *data, size_t size, const char *target_package_name)
- {
- ResXMLTree parser(data, size);
- if (parser.getError() != NO_ERROR) {
- ALOGD("%s failed to init xml parser, error=0x%08x\n", __FUNCTION__, parser.getError());
- return -1;
- }
-
- ResXMLParser::event_code_t type;
- do {
- type = parser.next();
- if (type == ResXMLParser::START_TAG) {
- size_t len;
- String16 tag(parser.getElementName(&len));
- if (tag == String16("overlay")) {
- return parse_overlay_tag(parser, target_package_name);
- }
- }
- } while (type != ResXMLParser::BAD_DOCUMENT && type != ResXMLParser::END_DOCUMENT);
-
- return NO_OVERLAY_TAG;
- }
-
- int parse_apk(const char *path, const char *target_package_name)
- {
- UniquePtr<ZipFileRO> zip(ZipFileRO::open(path));
- if (zip.get() == NULL) {
- ALOGW("%s: failed to open zip %s\n", __FUNCTION__, path);
- return -1;
- }
- ZipEntryRO entry;
- if ((entry = zip->findEntryByName("AndroidManifest.xml")) == NULL) {
- ALOGW("%s: failed to find entry AndroidManifest.xml\n", __FUNCTION__);
- return -1;
- }
- size_t uncompLen = 0;
- int method;
- if (!zip->getEntryInfo(entry, &method, &uncompLen, NULL, NULL, NULL, NULL)) {
- ALOGW("%s: failed to read entry info\n", __FUNCTION__);
- return -1;
- }
- if (method != ZipFileRO::kCompressDeflated) {
- ALOGW("%s: cannot handle zip compression method %d\n", __FUNCTION__, method);
- return -1;
- }
- FileMap *dataMap = zip->createEntryFileMap(entry);
- if (!dataMap) {
- ALOGW("%s: failed to create FileMap\n", __FUNCTION__);
- return -1;
- }
- char *buf = new char[uncompLen];
- if (NULL == buf) {
- ALOGW("%s: failed to allocate %d byte\n", __FUNCTION__, uncompLen);
- dataMap->release();
- return -1;
- }
- StreamingZipInflater inflater(dataMap, uncompLen);
- if (inflater.read(buf, uncompLen) < 0) {
- ALOGW("%s: failed to inflate %d byte\n", __FUNCTION__, uncompLen);
- delete[] buf;
- dataMap->release();
- return -1;
- }
-
- int priority = parse_manifest(buf, uncompLen, target_package_name);
- delete[] buf;
- dataMap->release();
- return priority;
- }
-}
-
-int idmap_scan(const char *overlay_dir, const char *target_package_name,
- const char *target_apk_path, const char *idmap_dir)
-{
- String8 filename = String8(idmap_dir);
- filename.appendPath("overlays.list");
- if (unlink(filename.string()) != 0 && errno != ENOENT) {
- return EXIT_FAILURE;
- }
-
- DIR *dir = opendir(overlay_dir);
- if (dir == NULL) {
- return EXIT_FAILURE;
- }
-
- SortedVector<Overlay> overlayVector;
- struct dirent *dirent;
- while ((dirent = readdir(dir)) != NULL) {
- struct stat st;
- char overlay_apk_path[PATH_MAX + 1];
- snprintf(overlay_apk_path, PATH_MAX, "%s/%s", overlay_dir, dirent->d_name);
- if (stat(overlay_apk_path, &st) < 0) {
- continue;
- }
- if (!S_ISREG(st.st_mode)) {
- continue;
- }
-
- int priority = parse_apk(overlay_apk_path, target_package_name);
- if (priority < 0) {
- continue;
- }
-
- String8 idmap_path(idmap_dir);
- idmap_path.appendPath(flatten_path(overlay_apk_path + 1));
- idmap_path.append("@idmap");
-
- if (idmap_create_path(target_apk_path, overlay_apk_path, idmap_path.string()) != 0) {
- ALOGE("error: failed to create idmap for target=%s overlay=%s idmap=%s\n",
- target_apk_path, overlay_apk_path, idmap_path.string());
- continue;
- }
-
- Overlay overlay(String8(overlay_apk_path), idmap_path, priority);
- overlayVector.add(overlay);
- }
-
- closedir(dir);
-
- if (!writePackagesList(filename.string(), overlayVector)) {
- return EXIT_FAILURE;
- }
-
- return EXIT_SUCCESS;
-}