diff options
Diffstat (limited to 'cmds/installd/commands.c')
-rw-r--r-- | cmds/installd/commands.c | 568 |
1 files changed, 0 insertions, 568 deletions
diff --git a/cmds/installd/commands.c b/cmds/installd/commands.c deleted file mode 100644 index 70a1206..0000000 --- a/cmds/installd/commands.c +++ /dev/null @@ -1,568 +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 "installd.h" - -int install(const char *pkgname, uid_t uid, gid_t gid) -{ - char pkgdir[PKG_PATH_MAX]; - char libdir[PKG_PATH_MAX]; - - if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) { - LOGE("invalid uid/gid: %d %d\n", uid, gid); - return -1; - - } - if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) - return -1; - if (create_pkg_path(libdir, PKG_LIB_PREFIX, pkgname, PKG_LIB_POSTFIX)) - return -1; - - if (mkdir(pkgdir, 0755) < 0) { - LOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno)); - return -errno; - } - if (chown(pkgdir, uid, gid) < 0) { - LOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno)); - unlink(pkgdir); - return -errno; - } - if (mkdir(libdir, 0755) < 0) { - LOGE("cannot create dir '%s': %s\n", libdir, strerror(errno)); - unlink(pkgdir); - return -errno; - } - if (chown(libdir, AID_SYSTEM, AID_SYSTEM) < 0) { - LOGE("cannot chown dir '%s': %s\n", libdir, strerror(errno)); - unlink(libdir); - unlink(pkgdir); - return -errno; - } - return 0; -} - -int uninstall(const char *pkgname) -{ - char pkgdir[PKG_PATH_MAX]; - - if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) - return -1; - - /* delete contents AND directory, no exceptions */ - return delete_dir_contents(pkgdir, 1, 0); -} - -int delete_user_data(const char *pkgname) -{ - char pkgdir[PKG_PATH_MAX]; - - if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) - return -1; - - /* delete contents, excluding "lib", but not the directory itself */ - return delete_dir_contents(pkgdir, 0, "lib"); -} - -int delete_cache(const char *pkgname) -{ - char cachedir[PKG_PATH_MAX]; - - if (create_pkg_path(cachedir, CACHE_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX)) - return -1; - - /* delete contents, not the directory, no exceptions */ - return delete_dir_contents(cachedir, 0, 0); -} - - -static int disk_free(void) -{ - struct statfs sfs; - if (statfs(PKG_DIR_PREFIX, &sfs) == 0) { - return sfs.f_bavail * sfs.f_bsize; - } else { - return -1; - } -} - - -/* 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(int free_size) -{ - const char *name; - int dfd, subfd; - DIR *d; - struct dirent *de; - int avail; - - avail = disk_free(); - if (avail < 0) return -1; - - LOGI("free_cache(%d) avail %d\n", free_size, avail); - if (avail >= free_size) return 0; - - d = opendir(PKG_DIR_PREFIX); - if (d == NULL) { - LOGE("cannot open %s\n", PKG_DIR_PREFIX); - return -1; - } - dfd = dirfd(d); - - while ((de = readdir(d))) { - if (de->d_type != DT_DIR) continue; - name = de->d_name; - - /* always skip "." and ".." */ - if (name[0] == '.') { - if (name[1] == 0) continue; - if ((name[1] == '.') && (name[2] == 0)) continue; - } - - subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY); - if (subfd < 0) continue; - - delete_dir_contents_fd(subfd, "cache"); - close(subfd); - - avail = disk_free(); - if (avail >= free_size) { - closedir(d); - return 0; - } - } - closedir(d); - return -1; -} - - -/* used by move_dex, rm_dex, etc to ensure that the provided paths - * don't point anywhere other than at the APK_DIR_PREFIX - */ -static int is_valid_apk_path(const char *path) -{ - int len = strlen(APK_DIR_PREFIX); - if (strncmp(path, APK_DIR_PREFIX, len)) { - len = strlen(PROTECTED_DIR_PREFIX); - if (strncmp(path, PROTECTED_DIR_PREFIX, len)) { - LOGE("invalid apk path '%s' (bad prefix)\n", path); - return 0; - } - } - if (strchr(path + len, '/')) { - LOGE("invalid apk path '%s' (subdir?)\n", path); - return 0; - } - if (path[len] == '.') { - LOGE("invalid apk path '%s' (trickery)\n", path); - return 0; - } - return 1; -} - -int move_dex(const char *src, const char *dst) -{ - char src_dex[PKG_PATH_MAX]; - char dst_dex[PKG_PATH_MAX]; - - if (!is_valid_apk_path(src)) return -1; - if (!is_valid_apk_path(dst)) return -1; - - if (create_cache_path(src_dex, src)) return -1; - if (create_cache_path(dst_dex, dst)) return -1; - - LOGI("move %s -> %s\n", src_dex, dst_dex); - if (rename(src_dex, dst_dex) < 0) { - return -1; - } else { - return 0; - } -} - -int rm_dex(const char *path) -{ - char dex_path[PKG_PATH_MAX]; - - if (!is_valid_apk_path(path)) return -1; - if (create_cache_path(dex_path, path)) return -1; - - LOGI("unlink %s\n", dex_path); - if (unlink(dex_path) < 0) { - return -1; - } else { - return 0; - } -} - -int protect(char *pkgname, gid_t gid) -{ - struct stat s; - char pkgpath[PKG_PATH_MAX]; - - if (gid < AID_SYSTEM) return -1; - - if (create_pkg_path(pkgpath, PROTECTED_DIR_PREFIX, pkgname, ".apk")) - return -1; - - if (stat(pkgpath, &s) < 0) return -1; - - if (chown(pkgpath, s.st_uid, gid) < 0) { - LOGE("failed to chgrp '%s': %s\n", pkgpath, strerror(errno)); - return -1; - } - - if (chmod(pkgpath, S_IRUSR|S_IWUSR|S_IRGRP) < 0) { - LOGE("failed to chmod '%s': %s\n", pkgpath, strerror(errno)); - return -1; - } - - return 0; -} - -static int stat_size(struct stat *s) -{ - int blksize = s->st_blksize; - int size = s->st_size; - - if (blksize) { - /* round up to filesystem block size */ - size = (size + blksize - 1) & (~(blksize - 1)); - } - - return size; -} - -static int calculate_dir_size(int dfd) -{ - int size = 0; - struct stat s; - DIR *d; - struct dirent *de; - - d = fdopendir(dfd); - if (d == NULL) { - close(dfd); - return 0; - } - - 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; - } - subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY); - if (subfd >= 0) { - size += calculate_dir_size(subfd); - } - } else { - if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) { - size += stat_size(&s); - } - } - } - closedir(d); - return size; -} - -int get_size(const char *pkgname, const char *apkpath, - const char *fwdlock_apkpath, - int *_codesize, int *_datasize, int *_cachesize) -{ - DIR *d; - int dfd; - struct dirent *de; - struct stat s; - char path[PKG_PATH_MAX]; - - int codesize = 0; - int datasize = 0; - int cachesize = 0; - - /* count the source apk as code -- but only if it's not - * on the /system partition - */ - if (strncmp(apkpath, "/system", 7) != 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); - } - } - - if (create_pkg_path(path, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) { - 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; - /* always skip "." and ".." */ - if (name[0] == '.') { - if (name[1] == 0) continue; - if ((name[1] == '.') && (name[2] == 0)) continue; - } - subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY); - if (subfd >= 0) { - int size = calculate_dir_size(subfd); - if (!strcmp(name,"lib")) { - codesize += size; - } else if(!strcmp(name,"cache")) { - cachesize += size; - } else { - datasize += size; - } - } - } else { - if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) { - datasize += stat_size(&s); - } - } - } - closedir(d); -done: - *_codesize = codesize; - *_datasize = datasize; - *_cachesize = cachesize; - 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); - LOGE("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) { - LOGW("waitpid failed: wanted %d, got %d: %s\n", - (int) pid, (int) got_pid, strerror(errno)); - return 1; - } - - if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { - LOGD("DexInv: --- END '%s' (success) ---\n", apk_path); - return 0; - } else { - LOGW("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) { - LOGE("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) { - LOGE("dexopt cannot open '%s' for output\n", dex_path); - goto fail; - } - if (fchown(odex_fd, AID_SYSTEM, uid) < 0) { - LOGE("dexopt cannot chown '%s'\n", dex_path); - goto fail; - } - if (fchmod(odex_fd, - S_IRUSR|S_IWUSR|S_IRGRP | - (is_public ? S_IROTH : 0)) < 0) { - LOGE("dexopt cannot chmod '%s'\n", dex_path); - goto fail; - } - - LOGD("DexInv: --- BEGIN '%s' ---\n", apk_path); - - pid_t pid; - pid = fork(); - if (pid == 0) { - /* child -- drop privileges before continuing */ - if (setgid(uid) != 0) { - LOGE("setgid(%d) failed during dexopt\n", uid); - exit(64); - } - if (setuid(uid) != 0) { - LOGE("setuid(%d) during dexopt\n", uid); - exit(65); - } - if (flock(odex_fd, LOCK_EX | LOCK_NB) != 0) { - LOGE("flock(%s) failed: %s\n", dex_path, strerror(errno)); - exit(66); - } - - run_dexopt(zip_fd, odex_fd, apk_path, dexopt_flags); - exit(67); /* only get here on exec failure */ - } else { - res = wait_dexopt(pid, apk_path); - if (res != 0) { - LOGE("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; -} |