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-rw-r--r--cmds/installd/commands.c568
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;
-}
generated by cgit v1.1 at 2024-08-25 12:49:05 +0000