a2d838a542
This reverts commit 7f5c84a0b2.
Bug: 7966399
Bug: 7208882
Change-Id: I9fb13cf06c0f6605f3d992525346b14fe3259c66
1076 lines
33 KiB
C
1076 lines
33 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 <linux/capability.h>
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#include "installd.h"
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#include <diskusage/dirsize.h>
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#include <selinux/android.h>
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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_array_t android_system_dirs;
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int install(const char *pkgname, uid_t uid, gid_t gid)
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{
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char pkgdir[PKG_PATH_MAX];
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char libsymlink[PKG_PATH_MAX];
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char applibdir[PKG_PATH_MAX];
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struct stat libStat;
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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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if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, 0)) {
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ALOGE("cannot create package path\n");
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return -1;
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}
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if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, 0)) {
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ALOGE("cannot create package lib symlink origin path\n");
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return -1;
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}
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if (create_pkg_path_in_dir(applibdir, &android_app_lib_dir, pkgname, PKG_DIR_POSTFIX)) {
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ALOGE("cannot create package lib symlink dest path\n");
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return -1;
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}
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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 (lstat(libsymlink, &libStat) < 0) {
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if (errno != ENOENT) {
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ALOGE("couldn't stat lib dir: %s\n", strerror(errno));
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return -1;
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}
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} else {
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if (S_ISDIR(libStat.st_mode)) {
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if (delete_dir_contents(libsymlink, 1, 0) < 0) {
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ALOGE("couldn't delete lib directory during install for: %s", libsymlink);
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return -1;
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}
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} else if (S_ISLNK(libStat.st_mode)) {
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if (unlink(libsymlink) < 0) {
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ALOGE("couldn't unlink lib directory during install for: %s", libsymlink);
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return -1;
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}
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}
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}
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if (symlink(applibdir, libsymlink) < 0) {
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ALOGE("couldn't symlink directory '%s' -> '%s': %s\n", libsymlink, applibdir,
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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, uid) < 0) {
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ALOGE("cannot setfilecon dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(libsymlink);
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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(libsymlink);
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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 *pkgname, uid_t persona)
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{
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char pkgdir[PKG_PATH_MAX];
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if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona))
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return -1;
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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 *pkgname, uid_t uid, gid_t gid)
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{
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char pkgdir[PKG_PATH_MAX];
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struct stat s;
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int rc = 0;
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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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if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, 0)) {
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ALOGE("cannot create package path\n");
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return -1;
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}
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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 %lu %lu\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 *pkgname, uid_t persona)
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{
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char pkgdir[PKG_PATH_MAX];
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if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona))
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return -1;
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/* delete contents, excluding "lib", but not the directory itself */
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return delete_dir_contents(pkgdir, 0, "lib");
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}
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int make_user_data(const char *pkgname, uid_t uid, uid_t persona)
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{
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char pkgdir[PKG_PATH_MAX];
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char applibdir[PKG_PATH_MAX];
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char libsymlink[PKG_PATH_MAX];
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struct stat libStat;
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// Create the data dir for the package
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if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona)) {
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return -1;
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}
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if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, persona)) {
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ALOGE("cannot create package lib symlink origin path\n");
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return -1;
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}
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if (create_pkg_path_in_dir(applibdir, &android_app_lib_dir, pkgname, PKG_DIR_POSTFIX)) {
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ALOGE("cannot create package lib symlink dest path\n");
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return -1;
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}
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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 (lstat(libsymlink, &libStat) < 0) {
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if (errno != ENOENT) {
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ALOGE("couldn't stat lib dir for non-primary: %s\n", strerror(errno));
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unlink(pkgdir);
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return -1;
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}
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} else {
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if (S_ISDIR(libStat.st_mode)) {
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if (delete_dir_contents(libsymlink, 1, 0) < 0) {
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ALOGE("couldn't delete lib directory during install for non-primary: %s",
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libsymlink);
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unlink(pkgdir);
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return -1;
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}
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} else if (S_ISLNK(libStat.st_mode)) {
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if (unlink(libsymlink) < 0) {
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ALOGE("couldn't unlink lib directory during install for non-primary: %s",
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libsymlink);
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unlink(pkgdir);
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return -1;
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}
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}
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}
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if (symlink(applibdir, libsymlink) < 0) {
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ALOGE("couldn't symlink directory for non-primary '%s' -> '%s': %s\n", libsymlink,
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applibdir, 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, uid) < 0) {
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ALOGE("cannot setfilecon dir '%s': %s\n", pkgdir, strerror(errno));
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unlink(libsymlink);
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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(libsymlink);
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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_persona(uid_t persona)
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{
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char data_path[PKG_PATH_MAX];
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if (create_persona_path(data_path, persona)) {
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return -1;
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}
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if (delete_dir_contents(data_path, 1, NULL)) {
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return -1;
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}
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char media_path[PATH_MAX];
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if (create_persona_media_path(media_path, (userid_t) persona) == -1) {
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return -1;
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}
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if (delete_dir_contents(media_path, 1, NULL) == -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_cache(const char *pkgname, uid_t persona)
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{
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char cachedir[PKG_PATH_MAX];
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if (create_pkg_path(cachedir, pkgname, CACHE_DIR_POSTFIX, persona))
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return -1;
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/* delete contents, not the directory, no exceptions */
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return delete_dir_contents(cachedir, 0, 0);
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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(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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avail = data_disk_free();
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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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// Collect cache files for primary user.
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if (create_persona_path(tmpdir, 0) == 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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// Search for other users and add any cache files from them.
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snprintf(tmpdir, sizeof(tmpdir), "%s%s", android_data_dir.path,
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SECONDARY_USER_PREFIX);
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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(cache, free_size);
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finish_cache_collection(cache);
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return data_disk_free() >= free_size ? 0 : -1;
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}
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int move_dex(const char *src, const char *dst)
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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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if (validate_apk_path(src)) return -1;
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if (validate_apk_path(dst)) return -1;
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if (create_cache_path(src_dex, src)) return -1;
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if (create_cache_path(dst_dex, dst)) 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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int rm_dex(const char *path)
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{
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char dex_path[PKG_PATH_MAX];
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if (validate_apk_path(path)) return -1;
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if (create_cache_path(dex_path, path)) return -1;
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ALOGV("unlink %s\n", dex_path);
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if (unlink(dex_path) < 0) {
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ALOGE("Couldn't unlink %s: %s\n", dex_path, 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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int get_size(const char *pkgname, int persona, const char *apkpath,
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const char *fwdlock_apkpath, const char *asecpath,
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int64_t *_codesize, int64_t *_datasize, int64_t *_cachesize,
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int64_t* _asecsize)
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{
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DIR *d;
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int dfd;
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struct dirent *de;
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struct stat s;
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char path[PKG_PATH_MAX];
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int64_t codesize = 0;
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int64_t datasize = 0;
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int64_t cachesize = 0;
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int64_t asecsize = 0;
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/* count the source apk as code -- but only if it's not
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* on the /system partition and its not on the sdcard.
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*/
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if (validate_system_app_path(apkpath) &&
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strncmp(apkpath, android_asec_dir.path, android_asec_dir.len) != 0) {
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if (stat(apkpath, &s) == 0) {
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codesize += stat_size(&s);
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}
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}
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/* count the forward locked apk as code if it is given
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*/
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if (fwdlock_apkpath != NULL && fwdlock_apkpath[0] != '!') {
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if (stat(fwdlock_apkpath, &s) == 0) {
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codesize += stat_size(&s);
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}
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}
|
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/* count the cached dexfile as code */
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if (!create_cache_path(path, apkpath)) {
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if (stat(path, &s) == 0) {
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codesize += stat_size(&s);
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}
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}
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|
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/* add in size of any libraries */
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if (!create_pkg_path_in_dir(path, &android_app_lib_dir, pkgname, PKG_DIR_POSTFIX)) {
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d = opendir(path);
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if (d != NULL) {
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dfd = dirfd(d);
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codesize += calculate_dir_size(dfd);
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closedir(d);
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}
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}
|
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|
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/* compute asec size if it is given
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*/
|
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if (asecpath != NULL && asecpath[0] != '!') {
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if (stat(asecpath, &s) == 0) {
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asecsize += stat_size(&s);
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}
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}
|
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|
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if (create_pkg_path(path, pkgname, PKG_DIR_POSTFIX, persona)) {
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goto done;
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}
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|
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d = opendir(path);
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if (d == NULL) {
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goto done;
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}
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dfd = dirfd(d);
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|
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/* most stuff in the pkgdir is data, except for the "cache"
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* directory and below, which is cache, and the "lib" directory
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* and below, which is code...
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*/
|
|
while ((de = readdir(d))) {
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const char *name = de->d_name;
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|
|
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);
|
|
done:
|
|
*_codesize = codesize;
|
|
*_datasize = datasize;
|
|
*_cachesize = cachesize;
|
|
*_asecsize = asecsize;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* a simpler version of dexOptGenerateCacheFileName() */
|
|
int create_cache_path(char path[PKG_PATH_MAX], const char *src)
|
|
{
|
|
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(DALVIK_CACHE_POSTFIX) + 1;
|
|
|
|
if (dstlen > PKG_PATH_MAX) {
|
|
return -1;
|
|
}
|
|
|
|
sprintf(path,"%s%s%s",
|
|
DALVIK_CACHE_PREFIX,
|
|
src + 1, /* skip the leading / */
|
|
DALVIK_CACHE_POSTFIX);
|
|
|
|
for(tmp = path + strlen(DALVIK_CACHE_PREFIX); *tmp; tmp++) {
|
|
if (*tmp == '/') {
|
|
*tmp = '@';
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void run_dexopt(int zip_fd, int odex_fd, const char* input_file_name,
|
|
const char* dexopt_flags)
|
|
{
|
|
static const char* DEX_OPT_BIN = "/system/bin/dexopt";
|
|
static const int MAX_INT_LEN = 12; // '-'+10dig+'\0' -OR- 0x+8dig
|
|
char zip_num[MAX_INT_LEN];
|
|
char odex_num[MAX_INT_LEN];
|
|
|
|
sprintf(zip_num, "%d", zip_fd);
|
|
sprintf(odex_num, "%d", odex_fd);
|
|
|
|
execl(DEX_OPT_BIN, DEX_OPT_BIN, "--zip", zip_num, odex_num, input_file_name,
|
|
dexopt_flags, (char*) NULL);
|
|
ALOGE("execl(%s) failed: %s\n", DEX_OPT_BIN, strerror(errno));
|
|
}
|
|
|
|
static int wait_dexopt(pid_t pid, const char* apk_path)
|
|
{
|
|
int status;
|
|
pid_t got_pid;
|
|
|
|
/*
|
|
* Wait for the optimization process to finish.
|
|
*/
|
|
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) {
|
|
ALOGV("DexInv: --- END '%s' (success) ---\n", apk_path);
|
|
return 0;
|
|
} else {
|
|
ALOGW("DexInv: --- END '%s' --- status=0x%04x, process failed\n",
|
|
apk_path, status);
|
|
return status; /* always nonzero */
|
|
}
|
|
}
|
|
|
|
int dexopt(const char *apk_path, uid_t uid, int is_public)
|
|
{
|
|
struct utimbuf ut;
|
|
struct stat apk_stat, dex_stat;
|
|
char dex_path[PKG_PATH_MAX];
|
|
char dexopt_flags[PROPERTY_VALUE_MAX];
|
|
char *end;
|
|
int res, zip_fd=-1, odex_fd=-1;
|
|
|
|
/* Before anything else: is there a .odex file? If so, we have
|
|
* pre-optimized the apk and there is nothing to do here.
|
|
*/
|
|
if (strlen(apk_path) >= (PKG_PATH_MAX - 8)) {
|
|
return -1;
|
|
}
|
|
|
|
/* platform-specific flags affecting optimization and verification */
|
|
property_get("dalvik.vm.dexopt-flags", dexopt_flags, "");
|
|
|
|
strcpy(dex_path, apk_path);
|
|
end = strrchr(dex_path, '.');
|
|
if (end != NULL) {
|
|
strcpy(end, ".odex");
|
|
if (stat(dex_path, &dex_stat) == 0) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (create_cache_path(dex_path, apk_path)) {
|
|
return -1;
|
|
}
|
|
|
|
memset(&apk_stat, 0, sizeof(apk_stat));
|
|
stat(apk_path, &apk_stat);
|
|
|
|
zip_fd = open(apk_path, O_RDONLY, 0);
|
|
if (zip_fd < 0) {
|
|
ALOGE("dexopt cannot open '%s' for input\n", apk_path);
|
|
return -1;
|
|
}
|
|
|
|
unlink(dex_path);
|
|
odex_fd = open(dex_path, O_RDWR | O_CREAT | O_EXCL, 0644);
|
|
if (odex_fd < 0) {
|
|
ALOGE("dexopt cannot open '%s' for output\n", dex_path);
|
|
goto fail;
|
|
}
|
|
if (fchmod(odex_fd,
|
|
S_IRUSR|S_IWUSR|S_IRGRP |
|
|
(is_public ? S_IROTH : 0)) < 0) {
|
|
ALOGE("dexopt cannot chmod '%s'\n", dex_path);
|
|
goto fail;
|
|
}
|
|
if (fchown(odex_fd, AID_SYSTEM, uid) < 0) {
|
|
ALOGE("dexopt cannot chown '%s'\n", dex_path);
|
|
goto fail;
|
|
}
|
|
|
|
ALOGV("DexInv: --- BEGIN '%s' ---\n", apk_path);
|
|
|
|
pid_t pid;
|
|
pid = fork();
|
|
if (pid == 0) {
|
|
/* child -- drop privileges before continuing */
|
|
if (setgid(uid) != 0) {
|
|
ALOGE("setgid(%d) failed during dexopt\n", uid);
|
|
exit(64);
|
|
}
|
|
if (setuid(uid) != 0) {
|
|
ALOGE("setuid(%d) 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);
|
|
}
|
|
if (flock(odex_fd, LOCK_EX | LOCK_NB) != 0) {
|
|
ALOGE("flock(%s) failed: %s\n", dex_path, strerror(errno));
|
|
exit(67);
|
|
}
|
|
|
|
run_dexopt(zip_fd, odex_fd, apk_path, dexopt_flags);
|
|
exit(68); /* only get here on exec failure */
|
|
} else {
|
|
res = wait_dexopt(pid, apk_path);
|
|
if (res != 0) {
|
|
ALOGE("dexopt failed on '%s' res = %d\n", dex_path, res);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
ut.actime = apk_stat.st_atime;
|
|
ut.modtime = apk_stat.st_mtime;
|
|
utime(dex_path, &ut);
|
|
|
|
close(odex_fd);
|
|
close(zip_fd);
|
|
return 0;
|
|
|
|
fail:
|
|
if (odex_fd >= 0) {
|
|
close(odex_fd);
|
|
unlink(dex_path);
|
|
}
|
|
if (zip_fd >= 0) {
|
|
close(zip_fd);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
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* pkgname, const char* asecLibDir, int userId)
|
|
{
|
|
char pkgdir[PKG_PATH_MAX];
|
|
char libsymlink[PKG_PATH_MAX];
|
|
struct stat s, libStat;
|
|
int rc = 0;
|
|
|
|
if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, userId)) {
|
|
ALOGE("cannot create package path\n");
|
|
return -1;
|
|
}
|
|
if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, userId)) {
|
|
ALOGE("cannot create package lib symlink origin path\n");
|
|
return -1;
|
|
}
|
|
|
|
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, 0) < 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;
|
|
}
|