2028 lines
69 KiB
C++
2028 lines
69 KiB
C++
/*
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** Copyright 2008, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#include "installd.h"
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#include <base/stringprintf.h>
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#include <base/logging.h>
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#include <cutils/sched_policy.h>
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#include <diskusage/dirsize.h>
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#include <logwrap/logwrap.h>
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#include <system/thread_defs.h>
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#include <selinux/android.h>
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#include <inttypes.h>
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#include <sys/capability.h>
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#include <sys/file.h>
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#include <unistd.h>
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using android::base::StringPrintf;
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/* Directory records that are used in execution of commands. */
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dir_rec_t android_data_dir;
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dir_rec_t android_asec_dir;
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dir_rec_t android_app_dir;
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dir_rec_t android_app_private_dir;
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dir_rec_t android_app_lib_dir;
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dir_rec_t android_media_dir;
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dir_rec_t android_mnt_expand_dir;
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dir_rec_t android_prebundled_dir;
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dir_rec_array_t android_system_dirs;
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static const char* kCpPath = "/system/bin/cp";
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int install(const char *uuid, const char *pkgname, uid_t uid, gid_t gid, const char *seinfo)
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{
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if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) {
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ALOGE("invalid uid/gid: %d %d\n", uid, gid);
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return -1;
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}
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std::string _pkgdir(create_data_user_package_path(uuid, 0, pkgname));
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const char* pkgdir = _pkgdir.c_str();
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if (mkdir(pkgdir, 0751) < 0) {
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ALOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno));
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return -1;
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}
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if (chmod(pkgdir, 0751) < 0) {
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ALOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -1;
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}
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if (selinux_android_setfilecon(pkgdir, pkgname, seinfo, uid) < 0) {
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ALOGE("cannot setfilecon dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -errno;
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}
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if (chown(pkgdir, uid, gid) < 0) {
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ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -1;
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}
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return 0;
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}
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int uninstall(const char *uuid, const char *pkgname, userid_t userid)
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{
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std::string _pkgdir(create_data_user_package_path(uuid, userid, pkgname));
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const char* pkgdir = _pkgdir.c_str();
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remove_profile_file(pkgname);
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/* delete contents AND directory, no exceptions */
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return delete_dir_contents(pkgdir, 1, NULL);
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}
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int renamepkg(const char *oldpkgname, const char *newpkgname)
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{
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char oldpkgdir[PKG_PATH_MAX];
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char newpkgdir[PKG_PATH_MAX];
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if (create_pkg_path(oldpkgdir, oldpkgname, PKG_DIR_POSTFIX, 0))
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return -1;
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if (create_pkg_path(newpkgdir, newpkgname, PKG_DIR_POSTFIX, 0))
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return -1;
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if (rename(oldpkgdir, newpkgdir) < 0) {
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ALOGE("cannot rename dir '%s' to '%s': %s\n", oldpkgdir, newpkgdir, strerror(errno));
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return -errno;
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}
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return 0;
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}
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int fix_uid(const char *uuid, const char *pkgname, uid_t uid, gid_t gid)
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{
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struct stat s;
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if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) {
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ALOGE("invalid uid/gid: %d %d\n", uid, gid);
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return -1;
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}
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std::string _pkgdir(create_data_user_package_path(uuid, 0, pkgname));
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const char* pkgdir = _pkgdir.c_str();
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if (stat(pkgdir, &s) < 0) return -1;
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if (s.st_uid != 0 || s.st_gid != 0) {
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ALOGE("fixing uid of non-root pkg: %s %" PRIu32 " %" PRIu32 "\n", pkgdir, s.st_uid, s.st_gid);
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return -1;
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}
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if (chmod(pkgdir, 0751) < 0) {
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ALOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -errno;
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}
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if (chown(pkgdir, uid, gid) < 0) {
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ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -errno;
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}
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return 0;
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}
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int delete_user_data(const char *uuid, const char *pkgname, userid_t userid)
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{
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std::string _pkgdir(create_data_user_package_path(uuid, userid, pkgname));
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const char* pkgdir = _pkgdir.c_str();
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return delete_dir_contents(pkgdir, 0, NULL);
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}
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int make_user_data(const char *uuid, const char *pkgname, uid_t uid, userid_t userid, const char* seinfo)
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{
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std::string _pkgdir(create_data_user_package_path(uuid, userid, pkgname));
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const char* pkgdir = _pkgdir.c_str();
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if (mkdir(pkgdir, 0751) < 0) {
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ALOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno));
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return -errno;
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}
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if (chmod(pkgdir, 0751) < 0) {
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ALOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -errno;
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}
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if (selinux_android_setfilecon(pkgdir, pkgname, seinfo, uid) < 0) {
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ALOGE("cannot setfilecon dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -errno;
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}
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if (chown(pkgdir, uid, uid) < 0) {
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ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(pkgdir);
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return -errno;
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}
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return 0;
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}
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int copy_complete_app(const char *from_uuid, const char *to_uuid,
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const char *package_name, const char *data_app_name, appid_t appid,
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const char* seinfo) {
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std::vector<userid_t> users = get_known_users(from_uuid);
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// Copy app
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{
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std::string from(create_data_app_package_path(from_uuid, data_app_name));
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std::string to(create_data_app_package_path(to_uuid, data_app_name));
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std::string to_parent(create_data_app_path(to_uuid));
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char *argv[] = {
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(char*) kCpPath,
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(char*) "-F", /* delete any existing destination file first (--remove-destination) */
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(char*) "-p", /* preserve timestamps, ownership, and permissions */
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(char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
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(char*) "-P", /* Do not follow symlinks [default] */
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(char*) "-d", /* don't dereference symlinks */
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(char*) from.c_str(),
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(char*) to_parent.c_str()
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};
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LOG(DEBUG) << "Copying " << from << " to " << to;
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int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
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if (rc != 0) {
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LOG(ERROR) << "Failed copying " << from << " to " << to
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<< ": status " << rc;
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goto fail;
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}
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if (selinux_android_restorecon(to.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) {
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LOG(ERROR) << "Failed to restorecon " << to;
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goto fail;
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}
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}
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// Copy private data for all known users
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for (auto user : users) {
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std::string from(create_data_user_package_path(from_uuid, user, package_name));
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std::string to(create_data_user_package_path(to_uuid, user, package_name));
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std::string to_parent(create_data_user_path(to_uuid, user));
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// Data source may not exist for all users; that's okay
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if (access(from.c_str(), F_OK) != 0) {
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LOG(INFO) << "Missing source " << from;
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continue;
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}
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std::string user_path(create_data_user_path(to_uuid, user));
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if (fs_prepare_dir(user_path.c_str(), 0771, AID_SYSTEM, AID_SYSTEM) != 0) {
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LOG(ERROR) << "Failed to prepare user target " << user_path;
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goto fail;
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}
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uid_t uid = multiuser_get_uid(user, appid);
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if (make_user_data(to_uuid, package_name, uid, user, seinfo) != 0) {
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LOG(ERROR) << "Failed to create package target " << to;
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goto fail;
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}
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char *argv[] = {
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(char*) kCpPath,
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(char*) "-F", /* delete any existing destination file first (--remove-destination) */
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(char*) "-p", /* preserve timestamps, ownership, and permissions */
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(char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
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(char*) "-P", /* Do not follow symlinks [default] */
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(char*) "-d", /* don't dereference symlinks */
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(char*) from.c_str(),
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(char*) to_parent.c_str()
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};
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LOG(DEBUG) << "Copying " << from << " to " << to;
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int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
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if (rc != 0) {
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LOG(ERROR) << "Failed copying " << from << " to " << to
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<< ": status " << rc;
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goto fail;
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}
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}
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if (restorecon_data(to_uuid, package_name, seinfo, multiuser_get_uid(0, appid)) != 0) {
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LOG(ERROR) << "Failed to restorecon";
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goto fail;
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}
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// We let the framework scan the new location and persist that before
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// deleting the data in the old location; this ordering ensures that
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// we can recover from things like battery pulls.
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return 0;
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fail:
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// Nuke everything we might have already copied
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{
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std::string to(create_data_app_package_path(to_uuid, data_app_name));
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if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
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LOG(WARNING) << "Failed to rollback " << to;
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}
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}
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for (auto user : users) {
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std::string to(create_data_user_package_path(to_uuid, user, package_name));
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if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
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LOG(WARNING) << "Failed to rollback " << to;
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}
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}
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return -1;
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}
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int make_user_config(userid_t userid)
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{
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if (ensure_config_user_dirs(userid) == -1) {
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return -1;
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}
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return 0;
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}
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int delete_user(const char *uuid, userid_t userid)
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{
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int status = 0;
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std::string data_path(create_data_user_path(uuid, userid));
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if (delete_dir_contents(data_path.c_str(), 1, NULL) != 0) {
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status = -1;
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}
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std::string media_path(create_data_media_path(uuid, userid));
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if (delete_dir_contents(media_path.c_str(), 1, NULL) != 0) {
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status = -1;
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}
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// Config paths only exist on internal storage
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if (uuid == nullptr) {
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char config_path[PATH_MAX];
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if ((create_user_config_path(config_path, userid) != 0)
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|| (delete_dir_contents(config_path, 1, NULL) != 0)) {
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status = -1;
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}
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}
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return status;
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}
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int delete_cache(const char *uuid, const char *pkgname, userid_t userid)
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{
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std::string _cachedir(
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create_data_user_package_path(uuid, userid, pkgname) + CACHE_DIR_POSTFIX);
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const char* cachedir = _cachedir.c_str();
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/* delete contents, not the directory, no exceptions */
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return delete_dir_contents(cachedir, 0, NULL);
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}
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int delete_code_cache(const char *uuid, const char *pkgname, userid_t userid)
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{
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std::string _codecachedir(
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create_data_user_package_path(uuid, userid, pkgname) + CODE_CACHE_DIR_POSTFIX);
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const char* codecachedir = _codecachedir.c_str();
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struct stat s;
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/* it's okay if code cache is missing */
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if (lstat(codecachedir, &s) == -1 && errno == ENOENT) {
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return 0;
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}
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/* delete contents, not the directory, no exceptions */
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return delete_dir_contents(codecachedir, 0, NULL);
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}
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/* Try to ensure free_size bytes of storage are available.
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* Returns 0 on success.
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* This is rather simple-minded because doing a full LRU would
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* be potentially memory-intensive, and without atime it would
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* also require that apps constantly modify file metadata even
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* when just reading from the cache, which is pretty awful.
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*/
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int free_cache(const char *uuid, int64_t free_size)
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{
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cache_t* cache;
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int64_t avail;
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DIR *d;
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struct dirent *de;
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char tmpdir[PATH_MAX];
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char *dirpos;
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std::string data_path(create_data_path(uuid));
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avail = data_disk_free(data_path);
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if (avail < 0) return -1;
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ALOGI("free_cache(%" PRId64 ") avail %" PRId64 "\n", free_size, avail);
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if (avail >= free_size) return 0;
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cache = start_cache_collection();
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// Special case for owner on internal storage
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if (uuid == nullptr) {
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std::string _tmpdir(create_data_user_path(nullptr, 0));
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add_cache_files(cache, _tmpdir.c_str(), "cache");
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}
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// Search for other users and add any cache files from them.
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std::string _tmpdir(create_data_path(uuid) + "/" + SECONDARY_USER_PREFIX);
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strcpy(tmpdir, _tmpdir.c_str());
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dirpos = tmpdir + strlen(tmpdir);
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d = opendir(tmpdir);
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if (d != NULL) {
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while ((de = readdir(d))) {
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if (de->d_type == DT_DIR) {
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const char *name = de->d_name;
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/* always skip "." and ".." */
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if (name[0] == '.') {
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if (name[1] == 0) continue;
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if ((name[1] == '.') && (name[2] == 0)) continue;
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}
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if ((strlen(name)+(dirpos-tmpdir)) < (sizeof(tmpdir)-1)) {
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strcpy(dirpos, name);
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//ALOGI("adding cache files from %s\n", tmpdir);
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add_cache_files(cache, tmpdir, "cache");
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} else {
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ALOGW("Path exceeds limit: %s%s", tmpdir, name);
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}
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}
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}
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closedir(d);
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}
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// Collect cache files on external storage for all users (if it is mounted as part
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// of the internal storage).
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strcpy(tmpdir, android_media_dir.path);
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dirpos = tmpdir + strlen(tmpdir);
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d = opendir(tmpdir);
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if (d != NULL) {
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while ((de = readdir(d))) {
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if (de->d_type == DT_DIR) {
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const char *name = de->d_name;
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/* skip any dir that doesn't start with a number, so not a user */
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if (name[0] < '0' || name[0] > '9') {
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continue;
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}
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if ((strlen(name)+(dirpos-tmpdir)) < (sizeof(tmpdir)-1)) {
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strcpy(dirpos, name);
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if (lookup_media_dir(tmpdir, "Android") == 0
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&& lookup_media_dir(tmpdir, "data") == 0) {
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//ALOGI("adding cache files from %s\n", tmpdir);
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add_cache_files(cache, tmpdir, "cache");
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}
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} else {
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ALOGW("Path exceeds limit: %s%s", tmpdir, name);
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}
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}
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}
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closedir(d);
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}
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clear_cache_files(data_path, cache, free_size);
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finish_cache_collection(cache);
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return data_disk_free(data_path) >= free_size ? 0 : -1;
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}
|
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|
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int move_dex(const char *src, const char *dst, const char *instruction_set)
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{
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char src_dex[PKG_PATH_MAX];
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char dst_dex[PKG_PATH_MAX];
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|
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if (validate_apk_path(src)) {
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ALOGE("invalid apk path '%s' (bad prefix)\n", src);
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return -1;
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}
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if (validate_apk_path(dst)) {
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ALOGE("invalid apk path '%s' (bad prefix)\n", dst);
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return -1;
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}
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|
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if (create_cache_path(src_dex, src, instruction_set)) return -1;
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if (create_cache_path(dst_dex, dst, instruction_set)) return -1;
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ALOGV("move %s -> %s\n", src_dex, dst_dex);
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if (rename(src_dex, dst_dex) < 0) {
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ALOGE("Couldn't move %s: %s\n", src_dex, strerror(errno));
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return -1;
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} else {
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return 0;
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}
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}
|
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|
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int rm_dex(const char *path, const char *instruction_set)
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{
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char dex_path[PKG_PATH_MAX];
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|
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if (validate_apk_path(path) && validate_system_app_path(path)) {
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ALOGE("invalid apk path '%s' (bad prefix)\n", path);
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return -1;
|
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}
|
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|
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if (create_cache_path(dex_path, path, instruction_set)) return -1;
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|
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ALOGV("unlink %s\n", dex_path);
|
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if (unlink(dex_path) < 0) {
|
|
if (errno != ENOENT) {
|
|
ALOGE("Couldn't unlink %s: %s\n", dex_path, strerror(errno));
|
|
}
|
|
return -1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int get_size(const char *uuid, const char *pkgname, int userid, const char *apkpath,
|
|
const char *libdirpath, const char *fwdlock_apkpath, const char *asecpath,
|
|
const char *instruction_set, int64_t *_codesize, int64_t *_datasize,
|
|
int64_t *_cachesize, int64_t* _asecsize)
|
|
{
|
|
DIR *d;
|
|
int dfd;
|
|
struct dirent *de;
|
|
struct stat s;
|
|
char path[PKG_PATH_MAX];
|
|
|
|
int64_t codesize = 0;
|
|
int64_t datasize = 0;
|
|
int64_t cachesize = 0;
|
|
int64_t asecsize = 0;
|
|
|
|
/* count the source apk as code -- but only if it's not
|
|
* on the /system partition and its not on the sdcard. */
|
|
if (validate_system_app_path(apkpath) &&
|
|
strncmp(apkpath, android_asec_dir.path, android_asec_dir.len) != 0) {
|
|
if (stat(apkpath, &s) == 0) {
|
|
codesize += stat_size(&s);
|
|
if (S_ISDIR(s.st_mode)) {
|
|
d = opendir(apkpath);
|
|
if (d != NULL) {
|
|
dfd = dirfd(d);
|
|
codesize += calculate_dir_size(dfd);
|
|
closedir(d);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* count the forward locked apk as code if it is given */
|
|
if (fwdlock_apkpath != NULL && fwdlock_apkpath[0] != '!') {
|
|
if (stat(fwdlock_apkpath, &s) == 0) {
|
|
codesize += stat_size(&s);
|
|
}
|
|
}
|
|
|
|
/* count the cached dexfile as code */
|
|
if (!create_cache_path(path, apkpath, instruction_set)) {
|
|
if (stat(path, &s) == 0) {
|
|
codesize += stat_size(&s);
|
|
}
|
|
}
|
|
|
|
/* add in size of any libraries */
|
|
if (libdirpath != NULL && libdirpath[0] != '!') {
|
|
d = opendir(libdirpath);
|
|
if (d != NULL) {
|
|
dfd = dirfd(d);
|
|
codesize += calculate_dir_size(dfd);
|
|
closedir(d);
|
|
}
|
|
}
|
|
|
|
/* compute asec size if it is given */
|
|
if (asecpath != NULL && asecpath[0] != '!') {
|
|
if (stat(asecpath, &s) == 0) {
|
|
asecsize += stat_size(&s);
|
|
}
|
|
}
|
|
|
|
std::vector<userid_t> users;
|
|
if (userid == -1) {
|
|
users = get_known_users(uuid);
|
|
} else {
|
|
users.push_back(userid);
|
|
}
|
|
|
|
for (auto user : users) {
|
|
std::string _pkgdir(create_data_user_package_path(uuid, user, pkgname));
|
|
const char* pkgdir = _pkgdir.c_str();
|
|
|
|
d = opendir(pkgdir);
|
|
if (d == NULL) {
|
|
PLOG(WARNING) << "Failed to open " << pkgdir;
|
|
continue;
|
|
}
|
|
dfd = dirfd(d);
|
|
|
|
/* most stuff in the pkgdir is data, except for the "cache"
|
|
* directory and below, which is cache, and the "lib" directory
|
|
* and below, which is code...
|
|
*/
|
|
while ((de = readdir(d))) {
|
|
const char *name = de->d_name;
|
|
|
|
if (de->d_type == DT_DIR) {
|
|
int subfd;
|
|
int64_t statsize = 0;
|
|
int64_t dirsize = 0;
|
|
/* always skip "." and ".." */
|
|
if (name[0] == '.') {
|
|
if (name[1] == 0) continue;
|
|
if ((name[1] == '.') && (name[2] == 0)) continue;
|
|
}
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
|
|
statsize = stat_size(&s);
|
|
}
|
|
subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY);
|
|
if (subfd >= 0) {
|
|
dirsize = calculate_dir_size(subfd);
|
|
}
|
|
if(!strcmp(name,"lib")) {
|
|
codesize += dirsize + statsize;
|
|
} else if(!strcmp(name,"cache")) {
|
|
cachesize += dirsize + statsize;
|
|
} else {
|
|
datasize += dirsize + statsize;
|
|
}
|
|
} else if (de->d_type == DT_LNK && !strcmp(name,"lib")) {
|
|
// This is the symbolic link to the application's library
|
|
// code. We'll count this as code instead of data, since
|
|
// it is not something that the app creates.
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
|
|
codesize += stat_size(&s);
|
|
}
|
|
} else {
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
|
|
datasize += stat_size(&s);
|
|
}
|
|
}
|
|
}
|
|
closedir(d);
|
|
}
|
|
*_codesize = codesize;
|
|
*_datasize = datasize;
|
|
*_cachesize = cachesize;
|
|
*_asecsize = asecsize;
|
|
return 0;
|
|
}
|
|
|
|
int create_cache_path(char path[PKG_PATH_MAX], const char *src, const char *instruction_set)
|
|
{
|
|
char *tmp;
|
|
int srclen;
|
|
int dstlen;
|
|
|
|
srclen = strlen(src);
|
|
|
|
/* demand that we are an absolute path */
|
|
if ((src == 0) || (src[0] != '/') || strstr(src,"..")) {
|
|
return -1;
|
|
}
|
|
|
|
if (srclen > PKG_PATH_MAX) { // XXX: PKG_NAME_MAX?
|
|
return -1;
|
|
}
|
|
|
|
dstlen = srclen + strlen(DALVIK_CACHE_PREFIX) +
|
|
strlen(instruction_set) +
|
|
strlen(DALVIK_CACHE_POSTFIX) + 2;
|
|
|
|
if (dstlen > PKG_PATH_MAX) {
|
|
return -1;
|
|
}
|
|
|
|
sprintf(path,"%s%s/%s%s",
|
|
DALVIK_CACHE_PREFIX,
|
|
instruction_set,
|
|
src + 1, /* skip the leading / */
|
|
DALVIK_CACHE_POSTFIX);
|
|
|
|
for(tmp = path + strlen(DALVIK_CACHE_PREFIX) + strlen(instruction_set) + 1; *tmp; tmp++) {
|
|
if (*tmp == '/') {
|
|
*tmp = '@';
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int split_count(const char *str)
|
|
{
|
|
char *ctx;
|
|
int count = 0;
|
|
char buf[PROPERTY_VALUE_MAX];
|
|
|
|
strncpy(buf, str, sizeof(buf));
|
|
char *pBuf = buf;
|
|
|
|
while(strtok_r(pBuf, " ", &ctx) != NULL) {
|
|
count++;
|
|
pBuf = NULL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static int split(char *buf, const char **argv)
|
|
{
|
|
char *ctx;
|
|
int count = 0;
|
|
char *tok;
|
|
char *pBuf = buf;
|
|
|
|
while((tok = strtok_r(pBuf, " ", &ctx)) != NULL) {
|
|
argv[count++] = tok;
|
|
pBuf = NULL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static void run_patchoat(int input_fd, int oat_fd, const char* input_file_name,
|
|
const char* output_file_name, const char *pkgname __unused, const char *instruction_set)
|
|
{
|
|
static const int MAX_INT_LEN = 12; // '-'+10dig+'\0' -OR- 0x+8dig
|
|
static const unsigned int MAX_INSTRUCTION_SET_LEN = 7;
|
|
|
|
static const char* PATCHOAT_BIN = "/system/bin/patchoat";
|
|
if (strlen(instruction_set) >= MAX_INSTRUCTION_SET_LEN) {
|
|
ALOGE("Instruction set %s longer than max length of %d",
|
|
instruction_set, MAX_INSTRUCTION_SET_LEN);
|
|
return;
|
|
}
|
|
|
|
/* input_file_name/input_fd should be the .odex/.oat file that is precompiled. I think*/
|
|
char instruction_set_arg[strlen("--instruction-set=") + MAX_INSTRUCTION_SET_LEN];
|
|
char output_oat_fd_arg[strlen("--output-oat-fd=") + MAX_INT_LEN];
|
|
char input_oat_fd_arg[strlen("--input-oat-fd=") + MAX_INT_LEN];
|
|
const char* patched_image_location_arg = "--patched-image-location=/system/framework/boot.art";
|
|
// The caller has already gotten all the locks we need.
|
|
const char* no_lock_arg = "--no-lock-output";
|
|
sprintf(instruction_set_arg, "--instruction-set=%s", instruction_set);
|
|
sprintf(output_oat_fd_arg, "--output-oat-fd=%d", oat_fd);
|
|
sprintf(input_oat_fd_arg, "--input-oat-fd=%d", input_fd);
|
|
ALOGV("Running %s isa=%s in-fd=%d (%s) out-fd=%d (%s)\n",
|
|
PATCHOAT_BIN, instruction_set, input_fd, input_file_name, oat_fd, output_file_name);
|
|
|
|
/* patchoat, patched-image-location, no-lock, isa, input-fd, output-fd */
|
|
char* argv[7];
|
|
argv[0] = (char*) PATCHOAT_BIN;
|
|
argv[1] = (char*) patched_image_location_arg;
|
|
argv[2] = (char*) no_lock_arg;
|
|
argv[3] = instruction_set_arg;
|
|
argv[4] = output_oat_fd_arg;
|
|
argv[5] = input_oat_fd_arg;
|
|
argv[6] = NULL;
|
|
|
|
execv(PATCHOAT_BIN, (char* const *)argv);
|
|
ALOGE("execv(%s) failed: %s\n", PATCHOAT_BIN, strerror(errno));
|
|
}
|
|
|
|
static bool check_boolean_property(const char* property_name, bool default_value = false) {
|
|
char tmp_property_value[PROPERTY_VALUE_MAX];
|
|
bool have_property = property_get(property_name, tmp_property_value, nullptr) > 0;
|
|
if (!have_property) {
|
|
return default_value;
|
|
}
|
|
return strcmp(tmp_property_value, "true") == 0;
|
|
}
|
|
|
|
static void run_dex2oat(int zip_fd, int oat_fd, const char* input_file_name,
|
|
const char* output_file_name, int swap_fd, const char *pkgname, const char *instruction_set,
|
|
bool vm_safe_mode, bool debuggable, bool post_bootcomplete)
|
|
{
|
|
static const unsigned int MAX_INSTRUCTION_SET_LEN = 7;
|
|
|
|
if (strlen(instruction_set) >= MAX_INSTRUCTION_SET_LEN) {
|
|
ALOGE("Instruction set %s longer than max length of %d",
|
|
instruction_set, MAX_INSTRUCTION_SET_LEN);
|
|
return;
|
|
}
|
|
|
|
char prop_buf[PROPERTY_VALUE_MAX];
|
|
bool profiler = (property_get("dalvik.vm.profiler", prop_buf, "0") > 0) && (prop_buf[0] == '1');
|
|
|
|
char dex2oat_Xms_flag[PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_Xms_flag = property_get("dalvik.vm.dex2oat-Xms", dex2oat_Xms_flag, NULL) > 0;
|
|
|
|
char dex2oat_Xmx_flag[PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_Xmx_flag = property_get("dalvik.vm.dex2oat-Xmx", dex2oat_Xmx_flag, NULL) > 0;
|
|
|
|
char dex2oat_compiler_filter_flag[PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_compiler_filter_flag = property_get("dalvik.vm.dex2oat-filter",
|
|
dex2oat_compiler_filter_flag, NULL) > 0;
|
|
|
|
char dex2oat_threads_buf[PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_threads_flag = false;
|
|
if (!post_bootcomplete) {
|
|
have_dex2oat_threads_flag = property_get("dalvik.vm.boot-dex2oat-threads",
|
|
dex2oat_threads_buf,
|
|
NULL) > 0;
|
|
// If there's no boot property, fall back to the image property.
|
|
if (!have_dex2oat_threads_flag) {
|
|
have_dex2oat_threads_flag = property_get("dalvik.vm.image-dex2oat-threads",
|
|
dex2oat_threads_buf,
|
|
NULL) > 0;
|
|
}
|
|
// If there's neither, fall back to the default property.
|
|
}
|
|
if (!have_dex2oat_threads_flag) {
|
|
have_dex2oat_threads_flag = property_get("dalvik.vm.dex2oat-threads",
|
|
dex2oat_threads_buf,
|
|
NULL) > 0;
|
|
}
|
|
char dex2oat_threads_arg[PROPERTY_VALUE_MAX + 2];
|
|
if (have_dex2oat_threads_flag) {
|
|
sprintf(dex2oat_threads_arg, "-j%s", dex2oat_threads_buf);
|
|
}
|
|
|
|
char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
|
|
sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
|
|
char dex2oat_isa_features[PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_isa_features = property_get(dex2oat_isa_features_key,
|
|
dex2oat_isa_features, NULL) > 0;
|
|
|
|
char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
|
|
sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
|
|
char dex2oat_isa_variant[PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_isa_variant = property_get(dex2oat_isa_variant_key,
|
|
dex2oat_isa_variant, NULL) > 0;
|
|
|
|
const char *dex2oat_norelocation = "-Xnorelocate";
|
|
bool have_dex2oat_relocation_skip_flag = false;
|
|
|
|
char dex2oat_flags[PROPERTY_VALUE_MAX];
|
|
int dex2oat_flags_count = property_get("dalvik.vm.dex2oat-flags",
|
|
dex2oat_flags, NULL) <= 0 ? 0 : split_count(dex2oat_flags);
|
|
ALOGV("dalvik.vm.dex2oat-flags=%s\n", dex2oat_flags);
|
|
|
|
// If we booting without the real /data, don't spend time compiling.
|
|
char vold_decrypt[PROPERTY_VALUE_MAX];
|
|
bool have_vold_decrypt = property_get("vold.decrypt", vold_decrypt, "") > 0;
|
|
bool skip_compilation = (have_vold_decrypt &&
|
|
(strcmp(vold_decrypt, "trigger_restart_min_framework") == 0 ||
|
|
(strcmp(vold_decrypt, "1") == 0)));
|
|
|
|
bool use_jit = check_boolean_property("debug.usejit");
|
|
bool generate_debug_info = check_boolean_property("debug.generate-debug-info");
|
|
|
|
static const char* DEX2OAT_BIN = "/system/bin/dex2oat";
|
|
|
|
static const char* RUNTIME_ARG = "--runtime-arg";
|
|
|
|
static const int MAX_INT_LEN = 12; // '-'+10dig+'\0' -OR- 0x+8dig
|
|
|
|
char zip_fd_arg[strlen("--zip-fd=") + MAX_INT_LEN];
|
|
char zip_location_arg[strlen("--zip-location=") + PKG_PATH_MAX];
|
|
char oat_fd_arg[strlen("--oat-fd=") + MAX_INT_LEN];
|
|
char oat_location_arg[strlen("--oat-location=") + PKG_PATH_MAX];
|
|
char instruction_set_arg[strlen("--instruction-set=") + MAX_INSTRUCTION_SET_LEN];
|
|
char instruction_set_variant_arg[strlen("--instruction-set-variant=") + PROPERTY_VALUE_MAX];
|
|
char instruction_set_features_arg[strlen("--instruction-set-features=") + PROPERTY_VALUE_MAX];
|
|
char profile_file_arg[strlen("--profile-file=") + PKG_PATH_MAX];
|
|
char top_k_profile_threshold_arg[strlen("--top-k-profile-threshold=") + PROPERTY_VALUE_MAX];
|
|
char dex2oat_Xms_arg[strlen("-Xms") + PROPERTY_VALUE_MAX];
|
|
char dex2oat_Xmx_arg[strlen("-Xmx") + PROPERTY_VALUE_MAX];
|
|
char dex2oat_compiler_filter_arg[strlen("--compiler-filter=") + PROPERTY_VALUE_MAX];
|
|
bool have_dex2oat_swap_fd = false;
|
|
char dex2oat_swap_fd[strlen("--swap-fd=") + MAX_INT_LEN];
|
|
|
|
sprintf(zip_fd_arg, "--zip-fd=%d", zip_fd);
|
|
sprintf(zip_location_arg, "--zip-location=%s", input_file_name);
|
|
sprintf(oat_fd_arg, "--oat-fd=%d", oat_fd);
|
|
sprintf(oat_location_arg, "--oat-location=%s", output_file_name);
|
|
sprintf(instruction_set_arg, "--instruction-set=%s", instruction_set);
|
|
sprintf(instruction_set_variant_arg, "--instruction-set-variant=%s", dex2oat_isa_variant);
|
|
sprintf(instruction_set_features_arg, "--instruction-set-features=%s", dex2oat_isa_features);
|
|
if (swap_fd >= 0) {
|
|
have_dex2oat_swap_fd = true;
|
|
sprintf(dex2oat_swap_fd, "--swap-fd=%d", swap_fd);
|
|
}
|
|
|
|
bool have_profile_file = false;
|
|
bool have_top_k_profile_threshold = false;
|
|
if (profiler && (strcmp(pkgname, "*") != 0)) {
|
|
char profile_file[PKG_PATH_MAX];
|
|
snprintf(profile_file, sizeof(profile_file), "%s/%s",
|
|
DALVIK_CACHE_PREFIX "profiles", pkgname);
|
|
struct stat st;
|
|
if ((stat(profile_file, &st) == 0) && (st.st_size > 0)) {
|
|
sprintf(profile_file_arg, "--profile-file=%s", profile_file);
|
|
have_profile_file = true;
|
|
if (property_get("dalvik.vm.profile.top-k-thr", prop_buf, NULL) > 0) {
|
|
snprintf(top_k_profile_threshold_arg, sizeof(top_k_profile_threshold_arg),
|
|
"--top-k-profile-threshold=%s", prop_buf);
|
|
have_top_k_profile_threshold = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (have_dex2oat_Xms_flag) {
|
|
sprintf(dex2oat_Xms_arg, "-Xms%s", dex2oat_Xms_flag);
|
|
}
|
|
if (have_dex2oat_Xmx_flag) {
|
|
sprintf(dex2oat_Xmx_arg, "-Xmx%s", dex2oat_Xmx_flag);
|
|
}
|
|
if (skip_compilation) {
|
|
strcpy(dex2oat_compiler_filter_arg, "--compiler-filter=verify-none");
|
|
have_dex2oat_compiler_filter_flag = true;
|
|
have_dex2oat_relocation_skip_flag = true;
|
|
} else if (vm_safe_mode) {
|
|
strcpy(dex2oat_compiler_filter_arg, "--compiler-filter=interpret-only");
|
|
have_dex2oat_compiler_filter_flag = true;
|
|
} else if (use_jit) {
|
|
strcpy(dex2oat_compiler_filter_arg, "--compiler-filter=verify-at-runtime");
|
|
have_dex2oat_compiler_filter_flag = true;
|
|
} else if (have_dex2oat_compiler_filter_flag) {
|
|
sprintf(dex2oat_compiler_filter_arg, "--compiler-filter=%s", dex2oat_compiler_filter_flag);
|
|
}
|
|
|
|
// Check whether all apps should be compiled debuggable.
|
|
if (!debuggable) {
|
|
debuggable =
|
|
(property_get("dalvik.vm.always_debuggable", prop_buf, "0") > 0) &&
|
|
(prop_buf[0] == '1');
|
|
}
|
|
|
|
ALOGV("Running %s in=%s out=%s\n", DEX2OAT_BIN, input_file_name, output_file_name);
|
|
|
|
const char* argv[7 // program name, mandatory arguments and the final NULL
|
|
+ (have_dex2oat_isa_variant ? 1 : 0)
|
|
+ (have_dex2oat_isa_features ? 1 : 0)
|
|
+ (have_profile_file ? 1 : 0)
|
|
+ (have_top_k_profile_threshold ? 1 : 0)
|
|
+ (have_dex2oat_Xms_flag ? 2 : 0)
|
|
+ (have_dex2oat_Xmx_flag ? 2 : 0)
|
|
+ (have_dex2oat_compiler_filter_flag ? 1 : 0)
|
|
+ (have_dex2oat_threads_flag ? 1 : 0)
|
|
+ (have_dex2oat_swap_fd ? 1 : 0)
|
|
+ (have_dex2oat_relocation_skip_flag ? 2 : 0)
|
|
+ (generate_debug_info ? 1 : 0)
|
|
+ (debuggable ? 1 : 0)
|
|
+ dex2oat_flags_count];
|
|
int i = 0;
|
|
argv[i++] = DEX2OAT_BIN;
|
|
argv[i++] = zip_fd_arg;
|
|
argv[i++] = zip_location_arg;
|
|
argv[i++] = oat_fd_arg;
|
|
argv[i++] = oat_location_arg;
|
|
argv[i++] = instruction_set_arg;
|
|
if (have_dex2oat_isa_variant) {
|
|
argv[i++] = instruction_set_variant_arg;
|
|
}
|
|
if (have_dex2oat_isa_features) {
|
|
argv[i++] = instruction_set_features_arg;
|
|
}
|
|
if (have_profile_file) {
|
|
argv[i++] = profile_file_arg;
|
|
}
|
|
if (have_top_k_profile_threshold) {
|
|
argv[i++] = top_k_profile_threshold_arg;
|
|
}
|
|
if (have_dex2oat_Xms_flag) {
|
|
argv[i++] = RUNTIME_ARG;
|
|
argv[i++] = dex2oat_Xms_arg;
|
|
}
|
|
if (have_dex2oat_Xmx_flag) {
|
|
argv[i++] = RUNTIME_ARG;
|
|
argv[i++] = dex2oat_Xmx_arg;
|
|
}
|
|
if (have_dex2oat_compiler_filter_flag) {
|
|
argv[i++] = dex2oat_compiler_filter_arg;
|
|
}
|
|
if (have_dex2oat_threads_flag) {
|
|
argv[i++] = dex2oat_threads_arg;
|
|
}
|
|
if (have_dex2oat_swap_fd) {
|
|
argv[i++] = dex2oat_swap_fd;
|
|
}
|
|
if (generate_debug_info) {
|
|
argv[i++] = "--generate-debug-info";
|
|
}
|
|
if (debuggable) {
|
|
argv[i++] = "--debuggable";
|
|
}
|
|
if (dex2oat_flags_count) {
|
|
i += split(dex2oat_flags, argv + i);
|
|
}
|
|
if (have_dex2oat_relocation_skip_flag) {
|
|
argv[i++] = RUNTIME_ARG;
|
|
argv[i++] = dex2oat_norelocation;
|
|
}
|
|
// Do not add after dex2oat_flags, they should override others for debugging.
|
|
argv[i] = NULL;
|
|
|
|
execv(DEX2OAT_BIN, (char * const *)argv);
|
|
ALOGE("execv(%s) failed: %s\n", DEX2OAT_BIN, strerror(errno));
|
|
}
|
|
|
|
static int wait_child(pid_t pid)
|
|
{
|
|
int status;
|
|
pid_t got_pid;
|
|
|
|
while (1) {
|
|
got_pid = waitpid(pid, &status, 0);
|
|
if (got_pid == -1 && errno == EINTR) {
|
|
printf("waitpid interrupted, retrying\n");
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
if (got_pid != pid) {
|
|
ALOGW("waitpid failed: wanted %d, got %d: %s\n",
|
|
(int) pid, (int) got_pid, strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
|
|
return 0;
|
|
} else {
|
|
return status; /* always nonzero */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Whether dexopt should use a swap file when compiling an APK.
|
|
*
|
|
* If kAlwaysProvideSwapFile, do this on all devices (dex2oat will make a more informed decision
|
|
* itself, anyways).
|
|
*
|
|
* Otherwise, read "dalvik.vm.dex2oat-swap". If the property exists, return whether it is "true".
|
|
*
|
|
* Otherwise, return true if this is a low-mem device.
|
|
*
|
|
* Otherwise, return default value.
|
|
*/
|
|
static bool kAlwaysProvideSwapFile = false;
|
|
static bool kDefaultProvideSwapFile = true;
|
|
|
|
static bool ShouldUseSwapFileForDexopt() {
|
|
if (kAlwaysProvideSwapFile) {
|
|
return true;
|
|
}
|
|
|
|
// Check the "override" property. If it exists, return value == "true".
|
|
char dex2oat_prop_buf[PROPERTY_VALUE_MAX];
|
|
if (property_get("dalvik.vm.dex2oat-swap", dex2oat_prop_buf, "") > 0) {
|
|
if (strcmp(dex2oat_prop_buf, "true") == 0) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Shortcut for default value. This is an implementation optimization for the process sketched
|
|
// above. If the default value is true, we can avoid to check whether this is a low-mem device,
|
|
// as low-mem is never returning false. The compiler will optimize this away if it can.
|
|
if (kDefaultProvideSwapFile) {
|
|
return true;
|
|
}
|
|
|
|
bool is_low_mem = check_boolean_property("ro.config.low_ram");
|
|
if (is_low_mem) {
|
|
return true;
|
|
}
|
|
|
|
// Default value must be false here.
|
|
return kDefaultProvideSwapFile;
|
|
}
|
|
|
|
/*
|
|
* Computes the odex file for the given apk_path and instruction_set.
|
|
* /system/framework/whatever.jar -> /system/framework/oat/<isa>/whatever.odex
|
|
*
|
|
* Returns false if it failed to determine the odex file path.
|
|
*/
|
|
static bool calculate_odex_file_path(char path[PKG_PATH_MAX],
|
|
const char *apk_path,
|
|
const char *instruction_set)
|
|
{
|
|
if (strlen(apk_path) + strlen("oat/") + strlen(instruction_set)
|
|
+ strlen("/") + strlen("odex") + 1 > PKG_PATH_MAX) {
|
|
ALOGE("apk_path '%s' may be too long to form odex file path.\n", apk_path);
|
|
return false;
|
|
}
|
|
|
|
strcpy(path, apk_path);
|
|
char *end = strrchr(path, '/');
|
|
if (end == NULL) {
|
|
ALOGE("apk_path '%s' has no '/'s in it?!\n", apk_path);
|
|
return false;
|
|
}
|
|
const char *apk_end = apk_path + (end - path); // strrchr(apk_path, '/');
|
|
|
|
strcpy(end + 1, "oat/"); // path = /system/framework/oat/\0
|
|
strcat(path, instruction_set); // path = /system/framework/oat/<isa>\0
|
|
strcat(path, apk_end); // path = /system/framework/oat/<isa>/whatever.jar\0
|
|
end = strrchr(path, '.');
|
|
if (end == NULL) {
|
|
ALOGE("apk_path '%s' has no extension.\n", apk_path);
|
|
return false;
|
|
}
|
|
strcpy(end + 1, "odex");
|
|
return true;
|
|
}
|
|
|
|
static void SetDex2OatAndPatchOatScheduling(bool set_to_bg) {
|
|
if (set_to_bg) {
|
|
if (set_sched_policy(0, SP_BACKGROUND) < 0) {
|
|
ALOGE("set_sched_policy failed: %s\n", strerror(errno));
|
|
exit(70);
|
|
}
|
|
if (setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_BACKGROUND) < 0) {
|
|
ALOGE("setpriority failed: %s\n", strerror(errno));
|
|
exit(71);
|
|
}
|
|
}
|
|
}
|
|
|
|
int dexopt(const char *apk_path, uid_t uid, bool is_public,
|
|
const char *pkgname, const char *instruction_set, int dexopt_needed,
|
|
bool vm_safe_mode, bool debuggable, const char* oat_dir, bool boot_complete)
|
|
{
|
|
struct utimbuf ut;
|
|
struct stat input_stat;
|
|
char out_path[PKG_PATH_MAX];
|
|
char swap_file_name[PKG_PATH_MAX];
|
|
const char *input_file;
|
|
char in_odex_path[PKG_PATH_MAX];
|
|
int res, input_fd=-1, out_fd=-1, swap_fd=-1;
|
|
|
|
// Early best-effort check whether we can fit the the path into our buffers.
|
|
// Note: the cache path will require an additional 5 bytes for ".swap", but we'll try to run
|
|
// without a swap file, if necessary.
|
|
if (strlen(apk_path) >= (PKG_PATH_MAX - 8)) {
|
|
ALOGE("apk_path too long '%s'\n", apk_path);
|
|
return -1;
|
|
}
|
|
|
|
if (oat_dir != NULL && oat_dir[0] != '!') {
|
|
if (validate_apk_path(oat_dir)) {
|
|
ALOGE("invalid oat_dir '%s'\n", oat_dir);
|
|
return -1;
|
|
}
|
|
if (calculate_oat_file_path(out_path, oat_dir, apk_path, instruction_set)) {
|
|
return -1;
|
|
}
|
|
} else {
|
|
if (create_cache_path(out_path, apk_path, instruction_set)) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
switch (dexopt_needed) {
|
|
case DEXOPT_DEX2OAT_NEEDED:
|
|
input_file = apk_path;
|
|
break;
|
|
|
|
case DEXOPT_PATCHOAT_NEEDED:
|
|
if (!calculate_odex_file_path(in_odex_path, apk_path, instruction_set)) {
|
|
return -1;
|
|
}
|
|
input_file = in_odex_path;
|
|
break;
|
|
|
|
case DEXOPT_SELF_PATCHOAT_NEEDED:
|
|
input_file = out_path;
|
|
break;
|
|
|
|
default:
|
|
ALOGE("Invalid dexopt needed: %d\n", dexopt_needed);
|
|
exit(72);
|
|
}
|
|
|
|
memset(&input_stat, 0, sizeof(input_stat));
|
|
stat(input_file, &input_stat);
|
|
|
|
input_fd = open(input_file, O_RDONLY, 0);
|
|
if (input_fd < 0) {
|
|
ALOGE("installd cannot open '%s' for input during dexopt\n", input_file);
|
|
return -1;
|
|
}
|
|
|
|
unlink(out_path);
|
|
out_fd = open(out_path, O_RDWR | O_CREAT | O_EXCL, 0644);
|
|
if (out_fd < 0) {
|
|
ALOGE("installd cannot open '%s' for output during dexopt\n", out_path);
|
|
goto fail;
|
|
}
|
|
if (fchmod(out_fd,
|
|
S_IRUSR|S_IWUSR|S_IRGRP |
|
|
(is_public ? S_IROTH : 0)) < 0) {
|
|
ALOGE("installd cannot chmod '%s' during dexopt\n", out_path);
|
|
goto fail;
|
|
}
|
|
if (fchown(out_fd, AID_SYSTEM, uid) < 0) {
|
|
ALOGE("installd cannot chown '%s' during dexopt\n", out_path);
|
|
goto fail;
|
|
}
|
|
|
|
// Create profile file if there is a package name present.
|
|
if (strcmp(pkgname, "*") != 0) {
|
|
create_profile_file(pkgname, uid);
|
|
}
|
|
|
|
// Create a swap file if necessary.
|
|
if (ShouldUseSwapFileForDexopt()) {
|
|
// Make sure there really is enough space.
|
|
size_t out_len = strlen(out_path);
|
|
if (out_len + strlen(".swap") + 1 <= PKG_PATH_MAX) {
|
|
strcpy(swap_file_name, out_path);
|
|
strcpy(swap_file_name + strlen(out_path), ".swap");
|
|
unlink(swap_file_name);
|
|
swap_fd = open(swap_file_name, O_RDWR | O_CREAT | O_EXCL, 0600);
|
|
if (swap_fd < 0) {
|
|
// Could not create swap file. Optimistically go on and hope that we can compile
|
|
// without it.
|
|
ALOGE("installd could not create '%s' for swap during dexopt\n", swap_file_name);
|
|
} else {
|
|
// Immediately unlink. We don't really want to hit flash.
|
|
unlink(swap_file_name);
|
|
}
|
|
} else {
|
|
// Swap file path is too long. Try to run without.
|
|
ALOGE("installd could not create swap file for path %s during dexopt\n", out_path);
|
|
}
|
|
}
|
|
|
|
ALOGV("DexInv: --- BEGIN '%s' ---\n", input_file);
|
|
|
|
pid_t pid;
|
|
pid = fork();
|
|
if (pid == 0) {
|
|
/* child -- drop privileges before continuing */
|
|
if (setgid(uid) != 0) {
|
|
ALOGE("setgid(%d) failed in installd during dexopt\n", uid);
|
|
exit(64);
|
|
}
|
|
if (setuid(uid) != 0) {
|
|
ALOGE("setuid(%d) failed in installd during dexopt\n", uid);
|
|
exit(65);
|
|
}
|
|
// drop capabilities
|
|
struct __user_cap_header_struct capheader;
|
|
struct __user_cap_data_struct capdata[2];
|
|
memset(&capheader, 0, sizeof(capheader));
|
|
memset(&capdata, 0, sizeof(capdata));
|
|
capheader.version = _LINUX_CAPABILITY_VERSION_3;
|
|
if (capset(&capheader, &capdata[0]) < 0) {
|
|
ALOGE("capset failed: %s\n", strerror(errno));
|
|
exit(66);
|
|
}
|
|
SetDex2OatAndPatchOatScheduling(boot_complete);
|
|
if (flock(out_fd, LOCK_EX | LOCK_NB) != 0) {
|
|
ALOGE("flock(%s) failed: %s\n", out_path, strerror(errno));
|
|
exit(67);
|
|
}
|
|
|
|
if (dexopt_needed == DEXOPT_PATCHOAT_NEEDED
|
|
|| dexopt_needed == DEXOPT_SELF_PATCHOAT_NEEDED) {
|
|
run_patchoat(input_fd, out_fd, input_file, out_path, pkgname, instruction_set);
|
|
} else if (dexopt_needed == DEXOPT_DEX2OAT_NEEDED) {
|
|
const char *input_file_name = strrchr(input_file, '/');
|
|
if (input_file_name == NULL) {
|
|
input_file_name = input_file;
|
|
} else {
|
|
input_file_name++;
|
|
}
|
|
run_dex2oat(input_fd, out_fd, input_file_name, out_path, swap_fd, pkgname,
|
|
instruction_set, vm_safe_mode, debuggable, boot_complete);
|
|
} else {
|
|
ALOGE("Invalid dexopt needed: %d\n", dexopt_needed);
|
|
exit(73);
|
|
}
|
|
exit(68); /* only get here on exec failure */
|
|
} else {
|
|
res = wait_child(pid);
|
|
if (res == 0) {
|
|
ALOGV("DexInv: --- END '%s' (success) ---\n", input_file);
|
|
} else {
|
|
ALOGE("DexInv: --- END '%s' --- status=0x%04x, process failed\n", input_file, res);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
ut.actime = input_stat.st_atime;
|
|
ut.modtime = input_stat.st_mtime;
|
|
utime(out_path, &ut);
|
|
|
|
close(out_fd);
|
|
close(input_fd);
|
|
if (swap_fd != -1) {
|
|
close(swap_fd);
|
|
}
|
|
return 0;
|
|
|
|
fail:
|
|
if (out_fd >= 0) {
|
|
close(out_fd);
|
|
unlink(out_path);
|
|
}
|
|
if (input_fd >= 0) {
|
|
close(input_fd);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int mark_boot_complete(const char* instruction_set)
|
|
{
|
|
char boot_marker_path[PKG_PATH_MAX];
|
|
sprintf(boot_marker_path,"%s%s/.booting", DALVIK_CACHE_PREFIX, instruction_set);
|
|
|
|
ALOGV("mark_boot_complete : %s", boot_marker_path);
|
|
if (unlink(boot_marker_path) != 0) {
|
|
ALOGE("Unable to unlink boot marker at %s, error=%s", boot_marker_path,
|
|
strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mkinnerdirs(char* path, int basepos, mode_t mode, int uid, int gid,
|
|
struct stat* statbuf)
|
|
{
|
|
while (path[basepos] != 0) {
|
|
if (path[basepos] == '/') {
|
|
path[basepos] = 0;
|
|
if (lstat(path, statbuf) < 0) {
|
|
ALOGV("Making directory: %s\n", path);
|
|
if (mkdir(path, mode) == 0) {
|
|
chown(path, uid, gid);
|
|
} else {
|
|
ALOGW("Unable to make directory %s: %s\n", path, strerror(errno));
|
|
}
|
|
}
|
|
path[basepos] = '/';
|
|
basepos++;
|
|
}
|
|
basepos++;
|
|
}
|
|
}
|
|
|
|
int movefileordir(char* srcpath, char* dstpath, int dstbasepos,
|
|
int dstuid, int dstgid, struct stat* statbuf)
|
|
{
|
|
DIR *d;
|
|
struct dirent *de;
|
|
int res;
|
|
|
|
int srcend = strlen(srcpath);
|
|
int dstend = strlen(dstpath);
|
|
|
|
if (lstat(srcpath, statbuf) < 0) {
|
|
ALOGW("Unable to stat %s: %s\n", srcpath, strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
if ((statbuf->st_mode&S_IFDIR) == 0) {
|
|
mkinnerdirs(dstpath, dstbasepos, S_IRWXU|S_IRWXG|S_IXOTH,
|
|
dstuid, dstgid, statbuf);
|
|
ALOGV("Renaming %s to %s (uid %d)\n", srcpath, dstpath, dstuid);
|
|
if (rename(srcpath, dstpath) >= 0) {
|
|
if (chown(dstpath, dstuid, dstgid) < 0) {
|
|
ALOGE("cannot chown %s: %s\n", dstpath, strerror(errno));
|
|
unlink(dstpath);
|
|
return 1;
|
|
}
|
|
} else {
|
|
ALOGW("Unable to rename %s to %s: %s\n",
|
|
srcpath, dstpath, strerror(errno));
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
d = opendir(srcpath);
|
|
if (d == NULL) {
|
|
ALOGW("Unable to opendir %s: %s\n", srcpath, strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
res = 0;
|
|
|
|
while ((de = readdir(d))) {
|
|
const char *name = de->d_name;
|
|
/* always skip "." and ".." */
|
|
if (name[0] == '.') {
|
|
if (name[1] == 0) continue;
|
|
if ((name[1] == '.') && (name[2] == 0)) continue;
|
|
}
|
|
|
|
if ((srcend+strlen(name)) >= (PKG_PATH_MAX-2)) {
|
|
ALOGW("Source path too long; skipping: %s/%s\n", srcpath, name);
|
|
continue;
|
|
}
|
|
|
|
if ((dstend+strlen(name)) >= (PKG_PATH_MAX-2)) {
|
|
ALOGW("Destination path too long; skipping: %s/%s\n", dstpath, name);
|
|
continue;
|
|
}
|
|
|
|
srcpath[srcend] = dstpath[dstend] = '/';
|
|
strcpy(srcpath+srcend+1, name);
|
|
strcpy(dstpath+dstend+1, name);
|
|
|
|
if (movefileordir(srcpath, dstpath, dstbasepos, dstuid, dstgid, statbuf) != 0) {
|
|
res = 1;
|
|
}
|
|
|
|
// Note: we will be leaving empty directories behind in srcpath,
|
|
// but that is okay, the package manager will be erasing all of the
|
|
// data associated with .apks that disappear.
|
|
|
|
srcpath[srcend] = dstpath[dstend] = 0;
|
|
}
|
|
|
|
closedir(d);
|
|
return res;
|
|
}
|
|
|
|
int movefiles()
|
|
{
|
|
DIR *d;
|
|
int dfd, subfd;
|
|
struct dirent *de;
|
|
struct stat s;
|
|
char buf[PKG_PATH_MAX+1];
|
|
int bufp, bufe, bufi, readlen;
|
|
|
|
char srcpkg[PKG_NAME_MAX];
|
|
char dstpkg[PKG_NAME_MAX];
|
|
char srcpath[PKG_PATH_MAX];
|
|
char dstpath[PKG_PATH_MAX];
|
|
int dstuid=-1, dstgid=-1;
|
|
int hasspace;
|
|
|
|
d = opendir(UPDATE_COMMANDS_DIR_PREFIX);
|
|
if (d == NULL) {
|
|
goto done;
|
|
}
|
|
dfd = dirfd(d);
|
|
|
|
/* Iterate through all files in the directory, executing the
|
|
* file movements requested there-in.
|
|
*/
|
|
while ((de = readdir(d))) {
|
|
const char *name = de->d_name;
|
|
|
|
if (de->d_type == DT_DIR) {
|
|
continue;
|
|
} else {
|
|
subfd = openat(dfd, name, O_RDONLY);
|
|
if (subfd < 0) {
|
|
ALOGW("Unable to open update commands at %s%s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name);
|
|
continue;
|
|
}
|
|
|
|
bufp = 0;
|
|
bufe = 0;
|
|
buf[PKG_PATH_MAX] = 0;
|
|
srcpkg[0] = dstpkg[0] = 0;
|
|
while (1) {
|
|
bufi = bufp;
|
|
while (bufi < bufe && buf[bufi] != '\n') {
|
|
bufi++;
|
|
}
|
|
if (bufi < bufe) {
|
|
buf[bufi] = 0;
|
|
ALOGV("Processing line: %s\n", buf+bufp);
|
|
hasspace = 0;
|
|
while (bufp < bufi && isspace(buf[bufp])) {
|
|
hasspace = 1;
|
|
bufp++;
|
|
}
|
|
if (buf[bufp] == '#' || bufp == bufi) {
|
|
// skip comments and empty lines.
|
|
} else if (hasspace) {
|
|
if (dstpkg[0] == 0) {
|
|
ALOGW("Path before package line in %s%s: %s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp);
|
|
} else if (srcpkg[0] == 0) {
|
|
// Skip -- source package no longer exists.
|
|
} else {
|
|
ALOGV("Move file: %s (from %s to %s)\n", buf+bufp, srcpkg, dstpkg);
|
|
if (!create_move_path(srcpath, srcpkg, buf+bufp, 0) &&
|
|
!create_move_path(dstpath, dstpkg, buf+bufp, 0)) {
|
|
movefileordir(srcpath, dstpath,
|
|
strlen(dstpath)-strlen(buf+bufp),
|
|
dstuid, dstgid, &s);
|
|
}
|
|
}
|
|
} else {
|
|
char* div = strchr(buf+bufp, ':');
|
|
if (div == NULL) {
|
|
ALOGW("Bad package spec in %s%s; no ':' sep: %s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp);
|
|
} else {
|
|
*div = 0;
|
|
div++;
|
|
if (strlen(buf+bufp) < PKG_NAME_MAX) {
|
|
strcpy(dstpkg, buf+bufp);
|
|
} else {
|
|
srcpkg[0] = dstpkg[0] = 0;
|
|
ALOGW("Package name too long in %s%s: %s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp);
|
|
}
|
|
if (strlen(div) < PKG_NAME_MAX) {
|
|
strcpy(srcpkg, div);
|
|
} else {
|
|
srcpkg[0] = dstpkg[0] = 0;
|
|
ALOGW("Package name too long in %s%s: %s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name, div);
|
|
}
|
|
if (srcpkg[0] != 0) {
|
|
if (!create_pkg_path(srcpath, srcpkg, PKG_DIR_POSTFIX, 0)) {
|
|
if (lstat(srcpath, &s) < 0) {
|
|
// Package no longer exists -- skip.
|
|
srcpkg[0] = 0;
|
|
}
|
|
} else {
|
|
srcpkg[0] = 0;
|
|
ALOGW("Can't create path %s in %s%s\n",
|
|
div, UPDATE_COMMANDS_DIR_PREFIX, name);
|
|
}
|
|
if (srcpkg[0] != 0) {
|
|
if (!create_pkg_path(dstpath, dstpkg, PKG_DIR_POSTFIX, 0)) {
|
|
if (lstat(dstpath, &s) == 0) {
|
|
dstuid = s.st_uid;
|
|
dstgid = s.st_gid;
|
|
} else {
|
|
// Destination package doesn't
|
|
// exist... due to original-package,
|
|
// this is normal, so don't be
|
|
// noisy about it.
|
|
srcpkg[0] = 0;
|
|
}
|
|
} else {
|
|
srcpkg[0] = 0;
|
|
ALOGW("Can't create path %s in %s%s\n",
|
|
div, UPDATE_COMMANDS_DIR_PREFIX, name);
|
|
}
|
|
}
|
|
ALOGV("Transfering from %s to %s: uid=%d\n",
|
|
srcpkg, dstpkg, dstuid);
|
|
}
|
|
}
|
|
}
|
|
bufp = bufi+1;
|
|
} else {
|
|
if (bufp == 0) {
|
|
if (bufp < bufe) {
|
|
ALOGW("Line too long in %s%s, skipping: %s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name, buf);
|
|
}
|
|
} else if (bufp < bufe) {
|
|
memcpy(buf, buf+bufp, bufe-bufp);
|
|
bufe -= bufp;
|
|
bufp = 0;
|
|
}
|
|
readlen = read(subfd, buf+bufe, PKG_PATH_MAX-bufe);
|
|
if (readlen < 0) {
|
|
ALOGW("Failure reading update commands in %s%s: %s\n",
|
|
UPDATE_COMMANDS_DIR_PREFIX, name, strerror(errno));
|
|
break;
|
|
} else if (readlen == 0) {
|
|
break;
|
|
}
|
|
bufe += readlen;
|
|
buf[bufe] = 0;
|
|
ALOGV("Read buf: %s\n", buf);
|
|
}
|
|
}
|
|
close(subfd);
|
|
}
|
|
}
|
|
closedir(d);
|
|
done:
|
|
return 0;
|
|
}
|
|
|
|
int linklib(const char* uuid, const char* pkgname, const char* asecLibDir, int userId)
|
|
{
|
|
struct stat s, libStat;
|
|
int rc = 0;
|
|
|
|
std::string _pkgdir(create_data_user_package_path(uuid, userId, pkgname));
|
|
std::string _libsymlink(_pkgdir + PKG_LIB_POSTFIX);
|
|
|
|
const char* pkgdir = _pkgdir.c_str();
|
|
const char* libsymlink = _libsymlink.c_str();
|
|
|
|
if (stat(pkgdir, &s) < 0) return -1;
|
|
|
|
if (chown(pkgdir, AID_INSTALL, AID_INSTALL) < 0) {
|
|
ALOGE("failed to chown '%s': %s\n", pkgdir, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (chmod(pkgdir, 0700) < 0) {
|
|
ALOGE("linklib() 1: failed to chmod '%s': %s\n", pkgdir, strerror(errno));
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (lstat(libsymlink, &libStat) < 0) {
|
|
if (errno != ENOENT) {
|
|
ALOGE("couldn't stat lib dir: %s\n", strerror(errno));
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
} else {
|
|
if (S_ISDIR(libStat.st_mode)) {
|
|
if (delete_dir_contents(libsymlink, 1, NULL) < 0) {
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
} else if (S_ISLNK(libStat.st_mode)) {
|
|
if (unlink(libsymlink) < 0) {
|
|
ALOGE("couldn't unlink lib dir: %s\n", strerror(errno));
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (symlink(asecLibDir, libsymlink) < 0) {
|
|
ALOGE("couldn't symlink directory '%s' -> '%s': %s\n", libsymlink, asecLibDir,
|
|
strerror(errno));
|
|
rc = -errno;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
if (chmod(pkgdir, s.st_mode) < 0) {
|
|
ALOGE("linklib() 2: failed to chmod '%s': %s\n", pkgdir, strerror(errno));
|
|
rc = -errno;
|
|
}
|
|
|
|
if (chown(pkgdir, s.st_uid, s.st_gid) < 0) {
|
|
ALOGE("failed to chown '%s' : %s\n", pkgdir, strerror(errno));
|
|
return -errno;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void run_idmap(const char *target_apk, const char *overlay_apk, const char *cache_path,
|
|
int idmap_fd, uint32_t target_hash, uint32_t overlay_hash)
|
|
{
|
|
static const char *IDMAP_BIN = "/system/bin/idmap";
|
|
static const size_t MAX_INT_LEN = 32;
|
|
char idmap_str[MAX_INT_LEN];
|
|
char target_hash_str[MAX_INT_LEN];
|
|
char overlay_hash_str[MAX_INT_LEN];
|
|
|
|
snprintf(idmap_str, sizeof(idmap_str), "%d", idmap_fd);
|
|
snprintf(target_hash_str, sizeof(target_hash_str), "%d", target_hash);
|
|
snprintf(overlay_hash_str, sizeof(overlay_hash_str), "%d", overlay_hash);
|
|
|
|
execl(IDMAP_BIN, IDMAP_BIN, "--fd", target_apk, overlay_apk, cache_path, idmap_str,
|
|
target_hash_str, overlay_hash_str, (char*)NULL);
|
|
ALOGE("execl(%s) failed: %s\n", IDMAP_BIN, strerror(errno));
|
|
}
|
|
|
|
static int get_idmap_path(const char *prefix, const char *suffix, char *idmap_path, size_t N)
|
|
{
|
|
if (idmap_path == NULL) return -1;
|
|
|
|
memset(idmap_path, 0, N);
|
|
int len = snprintf(idmap_path, N, "%s/%s", prefix, suffix);
|
|
if (len < 0 || (size_t)len >= N) {
|
|
return -1; // error or truncated
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int idmap(const char *target_apk, const char *overlay_apk, const char *cache_path,
|
|
uid_t uid, uint32_t target_hash, uint32_t overlay_hash)
|
|
{
|
|
ALOGD("idmap target_apk=%s overlay_apk=%s cache_path=%s uid=%d\n", target_apk, overlay_apk,
|
|
cache_path, uid);
|
|
|
|
int idmap_fd = -1;
|
|
char idmap_path[PATH_MAX];
|
|
|
|
if (get_idmap_path(cache_path, IDMAP_SUFFIX, idmap_path, sizeof(idmap_path)) == -1) {
|
|
ALOGE("idmap cannot generate idmap path for overlay %s\n", overlay_apk);
|
|
goto fail;
|
|
}
|
|
|
|
unlink(idmap_path);
|
|
idmap_fd = open(idmap_path, O_RDWR | O_CREAT | O_EXCL, 0644);
|
|
if (idmap_fd < 0) {
|
|
ALOGE("idmap cannot open '%s' for output: %s\n", idmap_path, strerror(errno));
|
|
goto fail;
|
|
}
|
|
if (fchown(idmap_fd, AID_SYSTEM, uid) < 0) {
|
|
ALOGE("idmap cannot chown '%s'\n", idmap_path);
|
|
goto fail;
|
|
}
|
|
if (fchmod(idmap_fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) < 0) {
|
|
ALOGE("idmap cannot chmod '%s'\n", idmap_path);
|
|
goto fail;
|
|
}
|
|
|
|
pid_t pid;
|
|
pid = fork();
|
|
if (pid == 0) {
|
|
/* child -- drop privileges before continuing */
|
|
if (setgid(uid) != 0) {
|
|
ALOGE("setgid(%d) failed during idmap\n", uid);
|
|
exit(1);
|
|
}
|
|
if (setuid(uid) != 0) {
|
|
ALOGE("setuid(%d) failed during idmap\n", uid);
|
|
exit(1);
|
|
}
|
|
if (flock(idmap_fd, LOCK_EX | LOCK_NB) != 0) {
|
|
ALOGE("flock(%s) failed during idmap: %s\n", idmap_path, strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
run_idmap(target_apk, overlay_apk, cache_path, idmap_fd, target_hash, overlay_hash);
|
|
exit(1); /* only if exec call to idmap failed */
|
|
} else {
|
|
int status = wait_child(pid);
|
|
if (status != 0) {
|
|
ALOGE("idmap failed, status=0x%04x\n", status);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
close(idmap_fd);
|
|
return 0;
|
|
fail:
|
|
if (idmap_fd >= 0) {
|
|
close(idmap_fd);
|
|
unlink(idmap_path);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void run_aapt(const char *source_apk, const char *internal_path,
|
|
int resapk_fd, int pkgId, int min_sdk_version, const char *common_res_path)
|
|
{
|
|
static const char *AAPT_BIN = "/system/bin/aapt";
|
|
static const char *MANIFEST = "/data/app/AndroidManifest.xml";
|
|
static const char *FRAMEWORK_RES = "/system/framework/framework-res.apk";
|
|
|
|
static const size_t MAX_INT_LEN = 32;
|
|
char resapk_str[MAX_INT_LEN];
|
|
char pkgId_str[MAX_INT_LEN];
|
|
char minSdkVersion_str[MAX_INT_LEN];
|
|
|
|
snprintf(resapk_str, sizeof(resapk_str), "%d", resapk_fd);
|
|
snprintf(pkgId_str, sizeof(pkgId_str), "%d", pkgId);
|
|
snprintf(minSdkVersion_str, sizeof(minSdkVersion_str), "%d", min_sdk_version);
|
|
bool hasCommonResources = (common_res_path != NULL && common_res_path[0] != '\0');
|
|
|
|
if (hasCommonResources) {
|
|
execl(AAPT_BIN, AAPT_BIN, "package",
|
|
"--min-sdk-version", minSdkVersion_str,
|
|
"-M", MANIFEST,
|
|
"-S", source_apk,
|
|
"-X", internal_path,
|
|
"-I", FRAMEWORK_RES,
|
|
"-I", common_res_path,
|
|
"-r", resapk_str,
|
|
"-x", pkgId_str,
|
|
"-f",
|
|
(char*)NULL);
|
|
} else {
|
|
execl(AAPT_BIN, AAPT_BIN, "package",
|
|
"--min-sdk-version", minSdkVersion_str,
|
|
"-M", MANIFEST,
|
|
"-S", source_apk,
|
|
"-X", internal_path,
|
|
"-I", FRAMEWORK_RES,
|
|
"-r", resapk_str,
|
|
"-x", pkgId_str,
|
|
"-f",
|
|
(char*)NULL);
|
|
}
|
|
ALOGE("execl(%s) failed: %s\n", AAPT_BIN, strerror(errno));
|
|
}
|
|
|
|
int aapt(const char *source_apk, const char *internal_path, const char *out_restable, uid_t uid,
|
|
int pkgId, int min_sdk_version, const char *common_res_path)
|
|
{
|
|
ALOGD("aapt source_apk=%s internal_path=%s out_restable=%s uid=%d, pkgId=%d,min_sdk_version=%d, common_res_path=%s",
|
|
source_apk, internal_path, out_restable, uid, pkgId, min_sdk_version, common_res_path);
|
|
static const int PARENT_READ_PIPE = 0;
|
|
static const int CHILD_WRITE_PIPE = 1;
|
|
|
|
int resapk_fd = -1;
|
|
char restable_path[PATH_MAX];
|
|
char resapk_path[PATH_MAX];
|
|
|
|
// create pipes for redirecting STDERR to a buffer that can be displayed in logcat
|
|
int pipefd[2];
|
|
if (pipe(pipefd) != 0) {
|
|
pipefd[0] = pipefd[1] = -1;
|
|
}
|
|
|
|
pid_t pid = fork();
|
|
|
|
if (pid == 0) {
|
|
// get file descriptor for resources.arsc
|
|
snprintf(restable_path, PATH_MAX, "%s/resources.arsc", out_restable);
|
|
unlink(restable_path);
|
|
|
|
// get file descriptor for resources.apk
|
|
snprintf(resapk_path, PATH_MAX, "%s/resources.apk", out_restable);
|
|
unlink(resapk_path);
|
|
resapk_fd = open(resapk_path, O_RDWR | O_CREAT | O_EXCL, 0644);
|
|
if (resapk_fd < 0) {
|
|
ALOGE("aapt cannot open '%s' for output: %s\n", resapk_path, strerror(errno));
|
|
goto fail;
|
|
}
|
|
if (fchown(resapk_fd, AID_SYSTEM, uid) < 0) {
|
|
ALOGE("aapt cannot chown '%s'\n", resapk_path);
|
|
goto fail;
|
|
}
|
|
if (fchmod(resapk_fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) < 0) {
|
|
ALOGE("aapt cannot chmod '%s'\n", resapk_path);
|
|
goto fail;
|
|
}
|
|
|
|
/* child -- drop privileges before continuing */
|
|
if (setgid(uid) != 0) {
|
|
ALOGE("setgid(%d) failed during aapt\n", uid);
|
|
exit(1);
|
|
}
|
|
if (setuid(uid) != 0) {
|
|
ALOGE("setuid(%d) failed during aapt\n", uid);
|
|
exit(1);
|
|
}
|
|
|
|
if (flock(resapk_fd, LOCK_EX | LOCK_NB) != 0) {
|
|
ALOGE("flock(%s) failed during aapt: %s\n", out_restable, strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
if (pipefd[PARENT_READ_PIPE] > 0 && pipefd[CHILD_WRITE_PIPE] > 0) {
|
|
close(pipefd[PARENT_READ_PIPE]); // close unused read end
|
|
if (dup2(pipefd[CHILD_WRITE_PIPE], STDERR_FILENO) != STDERR_FILENO) {
|
|
pipefd[CHILD_WRITE_PIPE] = -1;
|
|
}
|
|
}
|
|
|
|
run_aapt(source_apk, internal_path, resapk_fd, pkgId, min_sdk_version, common_res_path);
|
|
|
|
close(resapk_fd);
|
|
if (pipefd[CHILD_WRITE_PIPE] > 0) {
|
|
close(pipefd[CHILD_WRITE_PIPE]);
|
|
}
|
|
exit(1); /* only if exec call to idmap failed */
|
|
} else {
|
|
int status, i;
|
|
char buffer[1024];
|
|
ssize_t readlen;
|
|
|
|
if (pipefd[CHILD_WRITE_PIPE] > 0) {
|
|
close(pipefd[CHILD_WRITE_PIPE]); // close unused write end
|
|
}
|
|
|
|
if (pipefd[PARENT_READ_PIPE] > 0) {
|
|
while ((readlen = read(pipefd[PARENT_READ_PIPE], buffer, sizeof(buffer) - 1)) > 0) {
|
|
// in case buffer has more than one string in it, replace '\0' with '\n'
|
|
for (i = 0; i < readlen; i++) {
|
|
if (buffer[i] == '\0') buffer[i] = '\n';
|
|
}
|
|
// null terminate buffer at readlen
|
|
buffer[readlen] = '\0';
|
|
ALOG(LOG_ERROR, "InstallTheme", "%s", buffer);
|
|
}
|
|
waitpid(pid, &status, 0);
|
|
|
|
if (pipefd[PARENT_READ_PIPE] > 0) {
|
|
close(pipefd[PARENT_READ_PIPE]);
|
|
}
|
|
} else {
|
|
status = wait_child(pid);
|
|
}
|
|
|
|
if (status != 0) {
|
|
ALOGE("aapt failed, status=0x%04x\n", status);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
if (resapk_fd >= 0) {
|
|
close(resapk_fd);
|
|
unlink(resapk_path);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int restorecon_data(const char* uuid, const char* pkgName,
|
|
const char* seinfo, uid_t uid)
|
|
{
|
|
struct dirent *entry;
|
|
DIR *d;
|
|
struct stat s;
|
|
int ret = 0;
|
|
|
|
// SELINUX_ANDROID_RESTORECON_DATADATA flag is set by libselinux. Not needed here.
|
|
unsigned int flags = SELINUX_ANDROID_RESTORECON_RECURSE;
|
|
|
|
if (!pkgName || !seinfo) {
|
|
ALOGE("Package name or seinfo tag is null when trying to restorecon.");
|
|
return -1;
|
|
}
|
|
|
|
// Special case for owner on internal storage
|
|
if (uuid == nullptr) {
|
|
std::string path(create_data_user_package_path(nullptr, 0, pkgName));
|
|
|
|
if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, flags) < 0) {
|
|
PLOG(ERROR) << "restorecon failed for " << path;
|
|
ret |= -1;
|
|
}
|
|
}
|
|
|
|
// Relabel package directory for all secondary users.
|
|
std::string userdir(create_data_path(uuid) + "/" + SECONDARY_USER_PREFIX);
|
|
d = opendir(userdir.c_str());
|
|
if (d == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
while ((entry = readdir(d))) {
|
|
if (entry->d_type != DT_DIR) {
|
|
continue;
|
|
}
|
|
|
|
const char *user = entry->d_name;
|
|
// Ignore "." and ".."
|
|
if (!strcmp(user, ".") || !strcmp(user, "..")) {
|
|
continue;
|
|
}
|
|
|
|
// user directories start with a number
|
|
if (user[0] < '0' || user[0] > '9') {
|
|
ALOGE("Expecting numbered directory during restorecon. Instead got '%s'.", user);
|
|
continue;
|
|
}
|
|
|
|
std::string pkgdir(StringPrintf("%s%s/%s", userdir.c_str(), user, pkgName));
|
|
if (stat(pkgdir.c_str(), &s) < 0) {
|
|
continue;
|
|
}
|
|
|
|
if (selinux_android_restorecon_pkgdir(pkgdir.c_str(), seinfo, s.st_uid, flags) < 0) {
|
|
PLOG(ERROR) << "restorecon failed for " << pkgdir;
|
|
ret |= -1;
|
|
}
|
|
}
|
|
|
|
closedir(d);
|
|
return ret;
|
|
}
|
|
|
|
int create_oat_dir(const char* oat_dir, const char* instruction_set)
|
|
{
|
|
char oat_instr_dir[PKG_PATH_MAX];
|
|
|
|
if (validate_apk_path(oat_dir)) {
|
|
ALOGE("invalid apk path '%s' (bad prefix)\n", oat_dir);
|
|
return -1;
|
|
}
|
|
if (fs_prepare_dir(oat_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
|
|
return -1;
|
|
}
|
|
if (selinux_android_restorecon(oat_dir, 0)) {
|
|
ALOGE("cannot restorecon dir '%s': %s\n", oat_dir, strerror(errno));
|
|
return -1;
|
|
}
|
|
snprintf(oat_instr_dir, PKG_PATH_MAX, "%s/%s", oat_dir, instruction_set);
|
|
if (fs_prepare_dir(oat_instr_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int rm_package_dir(const char* apk_path)
|
|
{
|
|
if (validate_apk_path(apk_path)) {
|
|
ALOGE("invalid apk path '%s' (bad prefix)\n", apk_path);
|
|
return -1;
|
|
}
|
|
return delete_dir_contents(apk_path, 1 /* also_delete_dir */ , NULL /* exclusion_predicate */);
|
|
}
|
|
|
|
int link_file(const char* relative_path, const char* from_base, const char* to_base) {
|
|
char from_path[PKG_PATH_MAX];
|
|
char to_path[PKG_PATH_MAX];
|
|
snprintf(from_path, PKG_PATH_MAX, "%s/%s", from_base, relative_path);
|
|
snprintf(to_path, PKG_PATH_MAX, "%s/%s", to_base, relative_path);
|
|
|
|
if (validate_apk_path_subdirs(from_path)) {
|
|
ALOGE("invalid app data sub-path '%s' (bad prefix)\n", from_path);
|
|
return -1;
|
|
}
|
|
|
|
if (validate_apk_path_subdirs(to_path)) {
|
|
ALOGE("invalid app data sub-path '%s' (bad prefix)\n", to_path);
|
|
return -1;
|
|
}
|
|
|
|
const int ret = link(from_path, to_path);
|
|
if (ret < 0) {
|
|
ALOGE("link(%s, %s) failed : %s", from_path, to_path, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int calculate_oat_file_path(char path[PKG_PATH_MAX], const char *oat_dir, const char *apk_path,
|
|
const char *instruction_set) {
|
|
char *file_name_start;
|
|
char *file_name_end;
|
|
|
|
file_name_start = strrchr(apk_path, '/');
|
|
if (file_name_start == NULL) {
|
|
ALOGE("apk_path '%s' has no '/'s in it\n", apk_path);
|
|
return -1;
|
|
}
|
|
file_name_end = strrchr(apk_path, '.');
|
|
if (file_name_end < file_name_start) {
|
|
ALOGE("apk_path '%s' has no extension\n", apk_path);
|
|
return -1;
|
|
}
|
|
|
|
// Calculate file_name
|
|
int file_name_len = file_name_end - file_name_start - 1;
|
|
char file_name[file_name_len + 1];
|
|
memcpy(file_name, file_name_start + 1, file_name_len);
|
|
file_name[file_name_len] = '\0';
|
|
|
|
// <apk_parent_dir>/oat/<isa>/<file_name>.odex
|
|
snprintf(path, PKG_PATH_MAX, "%s/%s/%s.odex", oat_dir, instruction_set, file_name);
|
|
return 0;
|
|
}
|