diff options
author | 2012-10-24 10:43:42 -0700 | |
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committer | 2012-10-24 10:43:42 -0700 | |
commit | 6931061de6471e598d36e6c101ce9bb95036a80c (patch) | |
tree | 9c0a2d44af0e4c6299768aa84cc8b15372c3c87c /cmds/installd/commands.c | |
parent | e31e0f8c7c03b56a044ca9cfa155ea2745918136 (diff) |
Move non-Java commands to frameworks/native
Change-Id: Id77c2cecb27cec500dfe066e4430f9e67802a433
Signed-off-by: Mike Lockwood <lockwood@google.com>
Diffstat (limited to 'cmds/installd/commands.c')
-rw-r--r-- | cmds/installd/commands.c | 1136 |
1 files changed, 0 insertions, 1136 deletions
diff --git a/cmds/installd/commands.c b/cmds/installd/commands.c deleted file mode 100644 index 59bcda1b009b..000000000000 --- a/cmds/installd/commands.c +++ /dev/null @@ -1,1136 +0,0 @@ -/* -** Copyright 2008, The Android Open Source Project -** -** Licensed under the Apache License, Version 2.0 (the "License"); -** you may not use this file except in compliance with the License. -** You may obtain a copy of the License at -** -** http://www.apache.org/licenses/LICENSE-2.0 -** -** Unless required by applicable law or agreed to in writing, software -** distributed under the License is distributed on an "AS IS" BASIS, -** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -** See the License for the specific language governing permissions and -** limitations under the License. -*/ - -#include <linux/capability.h> -#include "installd.h" -#include <diskusage/dirsize.h> -#include <selinux/android.h> - -/* Directory records that are used in execution of commands. */ -dir_rec_t android_data_dir; -dir_rec_t android_asec_dir; -dir_rec_t android_app_dir; -dir_rec_t android_app_private_dir; -dir_rec_t android_app_lib_dir; -dir_rec_t android_media_dir; -dir_rec_array_t android_system_dirs; - -int install(const char *pkgname, uid_t uid, gid_t gid) -{ - char pkgdir[PKG_PATH_MAX]; - char libsymlink[PKG_PATH_MAX]; - char applibdir[PKG_PATH_MAX]; - struct stat libStat; - - if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) { - ALOGE("invalid uid/gid: %d %d\n", uid, gid); - return -1; - } - - if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, 0)) { - ALOGE("cannot create package path\n"); - return -1; - } - - if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, 0)) { - ALOGE("cannot create package lib symlink origin path\n"); - return -1; - } - - if (create_pkg_path_in_dir(applibdir, &android_app_lib_dir, pkgname, PKG_DIR_POSTFIX)) { - ALOGE("cannot create package lib symlink dest path\n"); - return -1; - } - - if (mkdir(pkgdir, 0751) < 0) { - ALOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno)); - return -1; - } - if (chmod(pkgdir, 0751) < 0) { - ALOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(pkgdir); - return -1; - } - - if (lstat(libsymlink, &libStat) < 0) { - if (errno != ENOENT) { - ALOGE("couldn't stat lib dir: %s\n", strerror(errno)); - return -1; - } - } else { - if (S_ISDIR(libStat.st_mode)) { - if (delete_dir_contents(libsymlink, 1, 0) < 0) { - ALOGE("couldn't delete lib directory during install for: %s", libsymlink); - return -1; - } - } else if (S_ISLNK(libStat.st_mode)) { - if (unlink(libsymlink) < 0) { - ALOGE("couldn't unlink lib directory during install for: %s", libsymlink); - return -1; - } - } - } - - if (symlink(applibdir, libsymlink) < 0) { - ALOGE("couldn't symlink directory '%s' -> '%s': %s\n", libsymlink, applibdir, - strerror(errno)); - unlink(pkgdir); - return -1; - } - - if (selinux_android_setfilecon(libsymlink, pkgname, AID_SYSTEM) < 0) { - ALOGE("cannot setfilecon dir '%s': %s\n", libsymlink, strerror(errno)); - unlink(libsymlink); - unlink(pkgdir); - return -1; - } - - if (selinux_android_setfilecon(pkgdir, pkgname, uid) < 0) { - ALOGE("cannot setfilecon dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(libsymlink); - unlink(pkgdir); - return -errno; - } - - if (chown(pkgdir, uid, gid) < 0) { - ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(libsymlink); - unlink(pkgdir); - return -1; - } - - return 0; -} - -int uninstall(const char *pkgname, uid_t persona) -{ - char pkgdir[PKG_PATH_MAX]; - - if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona)) - return -1; - - /* delete contents AND directory, no exceptions */ - return delete_dir_contents(pkgdir, 1, NULL); -} - -int renamepkg(const char *oldpkgname, const char *newpkgname) -{ - char oldpkgdir[PKG_PATH_MAX]; - char newpkgdir[PKG_PATH_MAX]; - - if (create_pkg_path(oldpkgdir, oldpkgname, PKG_DIR_POSTFIX, 0)) - return -1; - if (create_pkg_path(newpkgdir, newpkgname, PKG_DIR_POSTFIX, 0)) - return -1; - - if (rename(oldpkgdir, newpkgdir) < 0) { - ALOGE("cannot rename dir '%s' to '%s': %s\n", oldpkgdir, newpkgdir, strerror(errno)); - return -errno; - } - return 0; -} - -int fix_uid(const char *pkgname, uid_t uid, gid_t gid) -{ - char pkgdir[PKG_PATH_MAX]; - struct stat s; - int rc = 0; - - if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) { - ALOGE("invalid uid/gid: %d %d\n", uid, gid); - return -1; - } - - if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, 0)) { - ALOGE("cannot create package path\n"); - return -1; - } - - if (stat(pkgdir, &s) < 0) return -1; - - if (s.st_uid != 0 || s.st_gid != 0) { - ALOGE("fixing uid of non-root pkg: %s %lu %lu\n", pkgdir, s.st_uid, s.st_gid); - return -1; - } - - if (chmod(pkgdir, 0751) < 0) { - ALOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(pkgdir); - return -errno; - } - if (chown(pkgdir, uid, gid) < 0) { - ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(pkgdir); - return -errno; - } - - return 0; -} - -int delete_user_data(const char *pkgname, uid_t persona) -{ - char pkgdir[PKG_PATH_MAX]; - - if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona)) - return -1; - - /* delete contents, excluding "lib", but not the directory itself */ - return delete_dir_contents(pkgdir, 0, "lib"); -} - -int make_user_data(const char *pkgname, uid_t uid, uid_t persona) -{ - char pkgdir[PKG_PATH_MAX]; - char applibdir[PKG_PATH_MAX]; - char libsymlink[PKG_PATH_MAX]; - struct stat libStat; - - // Create the data dir for the package - if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona)) { - return -1; - } - if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, persona)) { - ALOGE("cannot create package lib symlink origin path\n"); - return -1; - } - if (create_pkg_path_in_dir(applibdir, &android_app_lib_dir, pkgname, PKG_DIR_POSTFIX)) { - ALOGE("cannot create package lib symlink dest path\n"); - return -1; - } - - if (mkdir(pkgdir, 0751) < 0) { - ALOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno)); - return -errno; - } - if (chmod(pkgdir, 0751) < 0) { - ALOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(pkgdir); - return -errno; - } - - if (lstat(libsymlink, &libStat) < 0) { - if (errno != ENOENT) { - ALOGE("couldn't stat lib dir for non-primary: %s\n", strerror(errno)); - unlink(pkgdir); - return -1; - } - } else { - if (S_ISDIR(libStat.st_mode)) { - if (delete_dir_contents(libsymlink, 1, 0) < 0) { - ALOGE("couldn't delete lib directory during install for non-primary: %s", - libsymlink); - unlink(pkgdir); - return -1; - } - } else if (S_ISLNK(libStat.st_mode)) { - if (unlink(libsymlink) < 0) { - ALOGE("couldn't unlink lib directory during install for non-primary: %s", - libsymlink); - unlink(pkgdir); - return -1; - } - } - } - - if (symlink(applibdir, libsymlink) < 0) { - ALOGE("couldn't symlink directory for non-primary '%s' -> '%s': %s\n", libsymlink, - applibdir, strerror(errno)); - unlink(pkgdir); - return -1; - } - - if (selinux_android_setfilecon(libsymlink, pkgname, AID_SYSTEM) < 0) { - ALOGE("cannot setfilecon dir '%s': %s\n", libsymlink, strerror(errno)); - unlink(libsymlink); - unlink(pkgdir); - return -errno; - } - - if (selinux_android_setfilecon(pkgdir, pkgname, uid) < 0) { - ALOGE("cannot setfilecon dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(libsymlink); - unlink(pkgdir); - return -errno; - } - - if (chown(pkgdir, uid, uid) < 0) { - ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(libsymlink); - unlink(pkgdir); - return -errno; - } - - return 0; -} - -int delete_persona(uid_t persona) -{ - char data_path[PKG_PATH_MAX]; - if (create_persona_path(data_path, persona)) { - return -1; - } - if (delete_dir_contents(data_path, 1, NULL)) { - return -1; - } - - char media_path[PATH_MAX]; - if (create_persona_media_path(media_path, (userid_t) persona) == -1) { - return -1; - } - if (delete_dir_contents(media_path, 1, NULL) == -1) { - return -1; - } - - return 0; -} - -int clone_persona_data(uid_t src_persona, uid_t target_persona, int copy) -{ - char src_data_dir[PKG_PATH_MAX]; - char pkg_path[PKG_PATH_MAX]; - DIR *d; - struct dirent *de; - struct stat s; - uid_t uid; - - if (create_persona_path(src_data_dir, src_persona)) { - return -1; - } - - d = opendir(src_data_dir); - if (d != NULL) { - while ((de = readdir(d))) { - const char *name = de->d_name; - - if (de->d_type == DT_DIR) { - int subfd; - /* always skip "." and ".." */ - if (name[0] == '.') { - if (name[1] == 0) continue; - if ((name[1] == '.') && (name[2] == 0)) continue; - } - /* Create the full path to the package's data dir */ - create_pkg_path(pkg_path, name, PKG_DIR_POSTFIX, src_persona); - /* Get the file stat */ - if (stat(pkg_path, &s) < 0) continue; - /* Get the uid of the package */ - ALOGI("Adding datadir for uid = %lu\n", s.st_uid); - uid = (uid_t) s.st_uid % PER_USER_RANGE; - /* Create the directory for the target */ - make_user_data(name, uid + target_persona * PER_USER_RANGE, - target_persona); - } - } - closedir(d); - } - - if (ensure_media_user_dirs((userid_t) target_persona) == -1) { - return -1; - } - - return 0; -} - -int delete_cache(const char *pkgname, uid_t persona) -{ - char cachedir[PKG_PATH_MAX]; - - if (create_pkg_path(cachedir, pkgname, CACHE_DIR_POSTFIX, persona)) - return -1; - - /* delete contents, not the directory, no exceptions */ - return delete_dir_contents(cachedir, 0, 0); -} - -/* Try to ensure free_size bytes of storage are available. - * Returns 0 on success. - * This is rather simple-minded because doing a full LRU would - * be potentially memory-intensive, and without atime it would - * also require that apps constantly modify file metadata even - * when just reading from the cache, which is pretty awful. - */ -int free_cache(int64_t free_size) -{ - cache_t* cache; - int64_t avail; - DIR *d; - struct dirent *de; - char tmpdir[PATH_MAX]; - char *dirpos; - - avail = data_disk_free(); - if (avail < 0) return -1; - - ALOGI("free_cache(%" PRId64 ") avail %" PRId64 "\n", free_size, avail); - if (avail >= free_size) return 0; - - cache = start_cache_collection(); - - // Collect cache files for primary user. - if (create_persona_path(tmpdir, 0) == 0) { - //ALOGI("adding cache files from %s\n", tmpdir); - add_cache_files(cache, tmpdir, "cache"); - } - - // Search for other users and add any cache files from them. - snprintf(tmpdir, sizeof(tmpdir), "%s%s", android_data_dir.path, - SECONDARY_USER_PREFIX); - dirpos = tmpdir + strlen(tmpdir); - d = opendir(tmpdir); - if (d != NULL) { - while ((de = readdir(d))) { - if (de->d_type == DT_DIR) { - 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 ((strlen(name)+(dirpos-tmpdir)) < (sizeof(tmpdir)-1)) { - strcpy(dirpos, name); - //ALOGI("adding cache files from %s\n", tmpdir); - add_cache_files(cache, tmpdir, "cache"); - } else { - ALOGW("Path exceeds limit: %s%s", tmpdir, name); - } - } - } - closedir(d); - } - - // Collect cache files on external storage for all users (if it is mounted as part - // of the internal storage). - strcpy(tmpdir, android_media_dir.path); - dirpos = tmpdir + strlen(tmpdir); - d = opendir(tmpdir); - if (d != NULL) { - while ((de = readdir(d))) { - if (de->d_type == DT_DIR) { - const char *name = de->d_name; - /* skip any dir that doesn't start with a number, so not a user */ - if (name[0] < '0' || name[0] > '9') { - continue; - } - if ((strlen(name)+(dirpos-tmpdir)) < (sizeof(tmpdir)-1)) { - strcpy(dirpos, name); - if (lookup_media_dir(tmpdir, "Android") == 0 - && lookup_media_dir(tmpdir, "data") == 0) { - //ALOGI("adding cache files from %s\n", tmpdir); - add_cache_files(cache, tmpdir, "cache"); - } - } else { - ALOGW("Path exceeds limit: %s%s", tmpdir, name); - } - } - } - closedir(d); - } - - clear_cache_files(cache, free_size); - finish_cache_collection(cache); - - return data_disk_free() >= free_size ? 0 : -1; -} - -int move_dex(const char *src, const char *dst) -{ - char src_dex[PKG_PATH_MAX]; - char dst_dex[PKG_PATH_MAX]; - - if (validate_apk_path(src)) return -1; - if (validate_apk_path(dst)) return -1; - - if (create_cache_path(src_dex, src)) return -1; - if (create_cache_path(dst_dex, dst)) return -1; - - ALOGV("move %s -> %s\n", src_dex, dst_dex); - if (rename(src_dex, dst_dex) < 0) { - ALOGE("Couldn't move %s: %s\n", src_dex, strerror(errno)); - return -1; - } else { - return 0; - } -} - -int rm_dex(const char *path) -{ - char dex_path[PKG_PATH_MAX]; - - if (validate_apk_path(path)) return -1; - if (create_cache_path(dex_path, path)) return -1; - - ALOGV("unlink %s\n", dex_path); - if (unlink(dex_path) < 0) { - ALOGE("Couldn't unlink %s: %s\n", dex_path, strerror(errno)); - return -1; - } else { - return 0; - } -} - -int get_size(const char *pkgname, int persona, const char *apkpath, - const char *fwdlock_apkpath, const char *asecpath, - 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); - } - } - /* 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)) { - if (stat(path, &s) == 0) { - codesize += stat_size(&s); - } - } - - /* add in size of any libraries */ - if (!create_pkg_path_in_dir(path, &android_app_lib_dir, pkgname, PKG_DIR_POSTFIX)) { - d = opendir(path); - 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); - } - } - - if (create_pkg_path(path, pkgname, PKG_DIR_POSTFIX, persona)) { - goto done; - } - - d = opendir(path); - if (d == NULL) { - goto done; - } - 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); -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; -} |