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, pkgname, PKG_DIR_POSTFIX, 0)) {
LOGE("cannot create package path\n");
return -1;
}
if (create_pkg_path(libdir, pkgname, PKG_LIB_POSTFIX, 0)) {
LOGE("cannot create package lib path\n");
return -1;
}
if (mkdir(pkgdir, 0751) < 0) {
LOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno));
return -errno;
}
if (chmod(pkgdir, 0751) < 0) {
LOGE("cannot chmod dir '%s': %s\n", pkgdir, strerror(errno));
unlink(pkgdir);
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 (chmod(libdir, 0755) < 0) {
LOGE("cannot chmod dir '%s': %s\n", libdir, strerror(errno));
unlink(libdir);
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;
}
if (chown(pkgdir, uid, gid) < 0) {
LOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno));
unlink(libdir);
unlink(pkgdir);
return -errno;
}
return 0;
}
int uninstall(const char *pkgname, int encrypted_fs_flag)
{
char pkgdir[PKG_PATH_MAX];
if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
return -1;
} else {
if (create_pkg_path(pkgdir, PKG_SEC_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
return -1;
}
/* delete contents AND directory, no exceptions */
return delete_dir_contents(pkgdir, 1, 0);
}
int delete_cache(const char *pkgname, int encrypted_fs_flag)
{
char cachedir[PKG_PATH_MAX];
if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
if (create_pkg_path(cachedir, CACHE_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX))
return -1;
} else {
if (create_pkg_path(cachedir, CACHE_SEC_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX))
return -1;
}
/* delete contents, not the directory, no exceptions */
return delete_dir_contents(cachedir, 0, 0);
}
int delete_user_data(const char *pkgname, int encrypted_fs_flag)
{
char pkgdir[PKG_PATH_MAX];
if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
return -1;
} else {
if (create_pkg_path(pkgdir, PKG_SEC_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 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 install(const char *pkgname, int encrypted_fs_flag, uid_t uid, gid_t gid)
{
char pkgdir[PKG_PATH_MAX];
char libdir[PKG_PATH_MAX];
LOGI("installer: dir: %s pkg: %s", pkgdir, pkgname);
if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) {
LOGE("invalid uid/gid: %d %d\n", uid, gid);
return -1;
}
if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
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;
} else {
if (create_pkg_path(pkgdir, PKG_SEC_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
return -1;
if (create_pkg_path(libdir, PKG_SEC_LIB_PREFIX, pkgname, PKG_LIB_POSTFIX))
return -1;
}
if (mkdir(pkgdir, 0751) < 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;
}
TEST_F(UtilsTest, CreatePkgPath_PrimaryUser) {
char path[PKG_PATH_MAX];
EXPECT_EQ(0, create_pkg_path(path, "com.example.package", "", 0))
<< "Should return error because postfix is too long.";
EXPECT_STREQ(TEST_DATA_DIR PRIMARY_USER_PREFIX "com.example.package", path)
<< "Package path should be in /data/data/";
}
TEST_F(UtilsTest, CreatePkgPath_SecondaryUser) {
char path[PKG_PATH_MAX];
EXPECT_EQ(0, create_pkg_path(path, "com.example.package", "", 1))
<< "Should successfully create package path.";
EXPECT_STREQ(TEST_DATA_DIR SECONDARY_USER_PREFIX "1/com.example.package", path)
<< "Package path should be in /data/user/";
}
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 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);
}
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");
}
TEST_F(UtilsTest, CreatePkgPath_LongPostfixFail) {
char path[PKG_PATH_MAX];
// Create long packagename of "aaaaa..."
size_t postfixSize = PKG_PATH_MAX;
char postfix[postfixSize + 1];
memset(postfix, 'a', postfixSize);
postfix[postfixSize] = '\0';
EXPECT_EQ(-1, create_pkg_path(path, "com.example.package", postfix, 0))
<< "Should return error because postfix is too long.";
}
TEST_F(UtilsTest, CreatePkgPath_LongPkgNameFail) {
char path[PKG_PATH_MAX];
// Create long packagename of "aaaaa..."
size_t pkgnameSize = PKG_NAME_MAX + 1;
char pkgname[pkgnameSize + 1];
memset(pkgname, 'a', pkgnameSize);
pkgname[pkgnameSize] = '\0';
EXPECT_EQ(-1, create_pkg_path(path, pkgname, "", 0))
<< "Should return error because package name is too long.";
}
int renamepkg(const char *oldpkgname, const char *newpkgname, int encrypted_fs_flag)
{
char oldpkgdir[PKG_PATH_MAX];
char newpkgdir[PKG_PATH_MAX];
if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
if (create_pkg_path(oldpkgdir, PKG_DIR_PREFIX, oldpkgname, PKG_DIR_POSTFIX))
return -1;
if (create_pkg_path(newpkgdir, PKG_DIR_PREFIX, newpkgname, PKG_DIR_POSTFIX))
return -1;
} else {
if (create_pkg_path(oldpkgdir, PKG_SEC_DIR_PREFIX, oldpkgname, PKG_DIR_POSTFIX))
return -1;
if (create_pkg_path(newpkgdir, PKG_SEC_DIR_PREFIX, newpkgname, PKG_DIR_POSTFIX))
return -1;
}
if (rename(oldpkgdir, newpkgdir) < 0) {
LOGE("cannot rename dir '%s' to '%s': %s\n", oldpkgdir, newpkgdir, strerror(errno));
return -errno;
}
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, NULL);
}
}
closedir(d);
}
if (ensure_media_user_dirs((userid_t) target_persona) == -1) {
return -1;
}
return 0;
}
TEST_F(UtilsTest, CreatePkgPath_LongPkgNameSuccess) {
char path[PKG_PATH_MAX];
// Create long packagename of "aaaaa..."
size_t pkgnameSize = PKG_NAME_MAX;
char pkgname[pkgnameSize + 1];
memset(pkgname, 'a', pkgnameSize);
pkgname[pkgnameSize] = '\0';
EXPECT_EQ(0, create_pkg_path(path, pkgname, "", 0))
<< "Should successfully be able to create package name.";
const char *prefix = TEST_DATA_DIR PRIMARY_USER_PREFIX;
size_t offset = strlen(prefix);
EXPECT_STREQ(pkgname, path + offset)
<< "Package path should be a really long string of a's";
}
int make_user_data(const char *pkgname, uid_t uid, uid_t persona)
{
char pkgdir[PKG_PATH_MAX];
char real_libdir[PKG_PATH_MAX];
// Create the data dir for the package
if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona)) {
return -1;
}
if (mkdir(pkgdir, 0751) < 0) {
ALOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno));
return -errno;
}
if (chown(pkgdir, uid, uid) < 0) {
ALOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno));
unlink(pkgdir);
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 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;
}
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 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;
}
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;
}
int install(const char *pkgname, uid_t uid, gid_t gid, const char *seinfo)
{
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_setfilecon2(pkgdir, pkgname, seinfo, 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 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;
}
int make_user_data(const char *pkgname, uid_t uid, uid_t persona, const char* seinfo)
{
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_setfilecon2(pkgdir, pkgname, seinfo, 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;
}
