* commit 'cbde9b920461225b5400abf5700eec1b62f5ce82': Plumb through volume UUID when building paths.
This commit is contained in:
Jeff Sharkey
Android Git Automerger
commit
65fe5dfdcd
@ -12,6 +12,7 @@ LOCAL_MODULE := libinstalld
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LOCAL_MODULE_TAGS := eng tests
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LOCAL_SRC_FILES := $(common_src_files)
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LOCAL_CFLAGS := $(common_cflags)
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LOCAL_SHARED_LIBRARIES := libbase
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LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
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include $(BUILD_STATIC_LIBRARY)
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@ -24,7 +25,12 @@ LOCAL_MODULE := installd
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LOCAL_MODULE_TAGS := optional
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LOCAL_CFLAGS := $(common_cflags)
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LOCAL_SRC_FILES := installd.cpp $(common_src_files)
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LOCAL_SHARED_LIBRARIES := libcutils liblog libselinux
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LOCAL_SHARED_LIBRARIES := \
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libbase \
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libcutils \
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liblog \
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libselinux \
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LOCAL_STATIC_LIBRARIES := libdiskusage
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LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
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include $(BUILD_EXECUTABLE)
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@ -33,11 +33,8 @@ dir_rec_t android_media_dir;
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dir_rec_t android_mnt_expand_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, const char *seinfo)
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int install(const char *uuid, const char *pkgname, uid_t uid, gid_t gid, const char *seinfo)
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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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@ -45,20 +42,8 @@ int install(const char *pkgname, uid_t uid, gid_t gid, const char *seinfo)
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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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std::string _pkgdir(create_package_data_path(uuid, pkgname, 0));
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const char* pkgdir = _pkgdir.c_str();
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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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@ -70,42 +55,14 @@ int install(const char *pkgname, uid_t uid, gid_t gid, const char *seinfo)
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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, NULL) < 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 (selinux_android_setfilecon(pkgdir, pkgname, seinfo, 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 (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 (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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@ -113,12 +70,10 @@ int install(const char *pkgname, uid_t uid, gid_t gid, const char *seinfo)
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return 0;
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}
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int uninstall(const char *pkgname, userid_t userid)
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int uninstall(const char *uuid, const char *pkgname, userid_t userid)
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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, userid))
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return -1;
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std::string _pkgdir(create_package_data_path(uuid, pkgname, userid));
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const char* pkgdir = _pkgdir.c_str();
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remove_profile_file(pkgname);
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@ -143,9 +98,8 @@ int renamepkg(const char *oldpkgname, const char *newpkgname)
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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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int fix_uid(const char *uuid, 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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if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) {
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@ -153,10 +107,8 @@ int fix_uid(const char *pkgname, uid_t uid, gid_t 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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std::string _pkgdir(create_package_data_path(uuid, pkgname, 0));
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const char* pkgdir = _pkgdir.c_str();
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if (stat(pkgdir, &s) < 0) return -1;
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@ -179,35 +131,20 @@ int fix_uid(const char *pkgname, uid_t uid, gid_t gid)
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return 0;
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}
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int delete_user_data(const char *pkgname, userid_t userid)
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int delete_user_data(const char *uuid, const char *pkgname, userid_t userid)
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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, userid))
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return -1;
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std::string _pkgdir(create_package_data_path(uuid, pkgname, userid));
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const char* pkgdir = _pkgdir.c_str();
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return delete_dir_contents(pkgdir, 0, NULL);
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}
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int make_user_data(const char *pkgname, uid_t uid, userid_t userid, const char* seinfo)
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int make_user_data(const char *uuid, const char *pkgname, uid_t uid, userid_t userid, const char* seinfo)
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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, userid)) {
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return -1;
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}
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if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, userid)) {
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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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std::string _pkgdir(create_package_data_path(uuid, pkgname, userid));
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const char* pkgdir = _pkgdir.c_str();
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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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@ -219,47 +156,14 @@ int make_user_data(const char *pkgname, uid_t uid, userid_t userid, const char*
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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, NULL) < 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 (selinux_android_setfilecon(pkgdir, pkgname, seinfo, 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 (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 (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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@ -301,24 +205,23 @@ int delete_user(userid_t userid)
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return status;
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}
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int delete_cache(const char *pkgname, userid_t userid)
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int delete_cache(const char *uuid, const char *pkgname, userid_t userid)
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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, userid))
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return -1;
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std::string _cachedir(
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create_package_data_path(uuid, pkgname, userid) + CACHE_DIR_POSTFIX);
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const char* cachedir = _cachedir.c_str();
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/* delete contents, not the directory, no exceptions */
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return delete_dir_contents(cachedir, 0, NULL);
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}
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int delete_code_cache(const char *pkgname, userid_t userid)
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int delete_code_cache(const char *uuid, const char *pkgname, userid_t userid)
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{
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char codecachedir[PKG_PATH_MAX];
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struct stat s;
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std::string _codecachedir(
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create_package_data_path(uuid, pkgname, userid) + CACHE_DIR_POSTFIX);
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const char* codecachedir = _codecachedir.c_str();
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if (create_pkg_path(codecachedir, pkgname, CODE_CACHE_DIR_POSTFIX, userid))
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return -1;
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struct stat s;
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/* it's okay if code cache is missing */
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if (lstat(codecachedir, &s) == -1 && errno == ENOENT) {
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@ -336,6 +239,7 @@ int delete_code_cache(const char *pkgname, userid_t userid)
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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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// TODO: extend to know about other volumes
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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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@ -467,7 +371,7 @@ int rm_dex(const char *path, const char *instruction_set)
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}
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}
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int get_size(const char *pkgname, userid_t userid, const char *apkpath,
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int get_size(const char *uuid, const char *pkgname, userid_t userid, const char *apkpath,
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const char *libdirpath, const char *fwdlock_apkpath, const char *asecpath,
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const char *instruction_set, int64_t *_codesize, int64_t *_datasize,
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int64_t *_cachesize, int64_t* _asecsize)
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@ -524,11 +428,10 @@ int get_size(const char *pkgname, userid_t userid, const char *apkpath,
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}
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}
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if (create_pkg_path(path, pkgname, PKG_DIR_POSTFIX, userid)) {
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goto done;
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}
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std::string _pkgdir(create_package_data_path(uuid, pkgname, userid));
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const char* pkgdir = _pkgdir.c_str();
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d = opendir(path);
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d = opendir(pkgdir);
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if (d == NULL) {
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goto done;
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}
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@ -1457,21 +1360,16 @@ done:
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return 0;
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}
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int linklib(const char* pkgname, const char* asecLibDir, int userId)
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int linklib(const char* uuid, const char* pkgname, const char* asecLibDir, int userId)
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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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struct stat s, libStat;
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int rc = 0;
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if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, userId)) {
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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, userId)) {
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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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std::string _pkgdir(create_package_data_path(uuid, pkgname, userId));
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std::string _libsymlink(_pkgdir + PKG_LIB_POSTFIX);
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const char* pkgdir = _pkgdir.c_str();
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const char* libsymlink = _libsymlink.c_str();
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if (stat(pkgdir, &s) < 0) return -1;
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@ -1640,7 +1538,8 @@ fail:
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return -1;
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}
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int restorecon_data(const char* pkgName, const char* seinfo, uid_t uid)
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// TODO: extend to know about other volumes
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int restorecon_data(const char *uuid, const char* pkgName, const char* seinfo, uid_t uid)
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{
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struct dirent *entry;
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DIR *d;
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@ -33,7 +33,7 @@ static int do_ping(char **arg __unused, char reply[REPLY_MAX] __unused)
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static int do_install(char **arg, char reply[REPLY_MAX] __unused)
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{
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return install(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]); /* pkgname, uid, gid, seinfo */
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return install(nullptr, arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]); /* pkgname, uid, gid, seinfo */
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}
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static int do_dexopt(char **arg, char reply[REPLY_MAX] __unused)
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@ -61,7 +61,7 @@ static int do_rm_dex(char **arg, char reply[REPLY_MAX] __unused)
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static int do_remove(char **arg, char reply[REPLY_MAX] __unused)
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{
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return uninstall(arg[0], atoi(arg[1])); /* pkgname, userid */
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return uninstall(nullptr, arg[0], atoi(arg[1])); /* pkgname, userid */
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}
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static int do_rename(char **arg, char reply[REPLY_MAX] __unused)
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@ -71,7 +71,7 @@ static int do_rename(char **arg, char reply[REPLY_MAX] __unused)
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static int do_fixuid(char **arg, char reply[REPLY_MAX] __unused)
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{
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return fix_uid(arg[0], atoi(arg[1]), atoi(arg[2])); /* pkgname, uid, gid */
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return fix_uid(nullptr, arg[0], atoi(arg[1]), atoi(arg[2])); /* pkgname, uid, gid */
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}
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static int do_free_cache(char **arg, char reply[REPLY_MAX] __unused) /* TODO int:free_size */
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@ -81,12 +81,12 @@ static int do_free_cache(char **arg, char reply[REPLY_MAX] __unused) /* TODO int
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static int do_rm_cache(char **arg, char reply[REPLY_MAX] __unused)
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{
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return delete_cache(arg[0], atoi(arg[1])); /* pkgname, userid */
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return delete_cache(nullptr, arg[0], atoi(arg[1])); /* pkgname, userid */
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}
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static int do_rm_code_cache(char **arg, char reply[REPLY_MAX] __unused)
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{
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return delete_code_cache(arg[0], atoi(arg[1])); /* pkgname, userid */
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return delete_code_cache(nullptr, arg[0], atoi(arg[1])); /* pkgname, userid */
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}
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static int do_get_size(char **arg, char reply[REPLY_MAX])
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@ -98,7 +98,7 @@ static int do_get_size(char **arg, char reply[REPLY_MAX])
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int res = 0;
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/* pkgdir, userid, apkpath */
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res = get_size(arg[0], atoi(arg[1]), arg[2], arg[3], arg[4], arg[5],
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res = get_size(nullptr, arg[0], atoi(arg[1]), arg[2], arg[3], arg[4], arg[5],
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arg[6], &codesize, &datasize, &cachesize, &asecsize);
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/*
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@ -112,12 +112,12 @@ static int do_get_size(char **arg, char reply[REPLY_MAX])
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static int do_rm_user_data(char **arg, char reply[REPLY_MAX] __unused)
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{
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return delete_user_data(arg[0], atoi(arg[1])); /* pkgname, userid */
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return delete_user_data(nullptr, arg[0], atoi(arg[1])); /* pkgname, userid */
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}
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static int do_mk_user_data(char **arg, char reply[REPLY_MAX] __unused)
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{
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return make_user_data(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]);
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return make_user_data(nullptr, arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]);
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/* pkgname, uid, userid, seinfo */
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}
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@ -138,7 +138,7 @@ static int do_movefiles(char **arg __unused, char reply[REPLY_MAX] __unused)
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|
||||
static int do_linklib(char **arg, char reply[REPLY_MAX] __unused)
|
||||
{
|
||||
return linklib(arg[0], arg[1], atoi(arg[2]));
|
||||
return linklib(nullptr, arg[0], arg[1], atoi(arg[2]));
|
||||
}
|
||||
|
||||
static int do_idmap(char **arg, char reply[REPLY_MAX] __unused)
|
||||
@ -148,7 +148,7 @@ static int do_idmap(char **arg, char reply[REPLY_MAX] __unused)
|
||||
|
||||
static int do_restorecon_data(char **arg, char reply[REPLY_MAX] __attribute__((unused)))
|
||||
{
|
||||
return restorecon_data(arg[0], arg[1], atoi(arg[2]));
|
||||
return restorecon_data(nullptr, arg[0], arg[1], atoi(arg[2]));
|
||||
/* pkgName, seinfo, uid*/
|
||||
}
|
||||
|
||||
|
||||
@ -31,6 +31,7 @@
|
||||
#include <sys/socket.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/wait.h>
|
||||
#include <string>
|
||||
|
||||
#include <cutils/fs.h>
|
||||
#include <cutils/sockets.h>
|
||||
@ -138,10 +139,8 @@ typedef struct {
|
||||
|
||||
/* util.c */
|
||||
|
||||
int create_pkg_path_in_dir(char path[PKG_PATH_MAX],
|
||||
const dir_rec_t* dir,
|
||||
const char* pkgname,
|
||||
const char* postfix);
|
||||
std::string create_package_data_path(const char* volume_uuid,
|
||||
const char* package_name, userid_t user);
|
||||
|
||||
int create_pkg_path(char path[PKG_PATH_MAX],
|
||||
const char *pkgname,
|
||||
@ -208,20 +207,20 @@ void remove_profile_file(const char *pkgname);
|
||||
|
||||
/* commands.c */
|
||||
|
||||
int install(const char *pkgname, uid_t uid, gid_t gid, const char *seinfo);
|
||||
int uninstall(const char *pkgname, userid_t userid);
|
||||
int install(const char *uuid, const char *pkgname, uid_t uid, gid_t gid, const char *seinfo);
|
||||
int uninstall(const char *uuid, const char *pkgname, userid_t userid);
|
||||
int renamepkg(const char *oldpkgname, const char *newpkgname);
|
||||
int fix_uid(const char *pkgname, uid_t uid, gid_t gid);
|
||||
int delete_user_data(const char *pkgname, userid_t userid);
|
||||
int make_user_data(const char *pkgname, uid_t uid, userid_t userid, const char* seinfo);
|
||||
int fix_uid(const char *uuid, const char *pkgname, uid_t uid, gid_t gid);
|
||||
int delete_user_data(const char *uuid, const char *pkgname, userid_t userid);
|
||||
int make_user_data(const char *uuid, const char *pkgname, uid_t uid, userid_t userid, const char* seinfo);
|
||||
int make_user_config(userid_t userid);
|
||||
int delete_user(userid_t userid);
|
||||
int delete_cache(const char *pkgname, userid_t userid);
|
||||
int delete_code_cache(const char *pkgname, userid_t userid);
|
||||
int delete_cache(const char *uuid, const char *pkgname, userid_t userid);
|
||||
int delete_code_cache(const char *uuid, const char *pkgname, userid_t userid);
|
||||
int move_dex(const char *src, const char *dst, const char *instruction_set);
|
||||
int rm_dex(const char *path, const char *instruction_set);
|
||||
int protect(char *pkgname, gid_t gid);
|
||||
int get_size(const char *pkgname, userid_t userid, const char *apkpath, const char *libdirpath,
|
||||
int get_size(const char *uuid, const char *pkgname, userid_t userid, const char *apkpath, const char *libdirpath,
|
||||
const char *fwdlock_apkpath, const char *asecpath, const char *instruction_set,
|
||||
int64_t *codesize, int64_t *datasize, int64_t *cachesize, int64_t *asecsize);
|
||||
int free_cache(int64_t free_size);
|
||||
@ -230,9 +229,9 @@ int dexopt(const char *apk_path, uid_t uid, bool is_public, const char *pkgName,
|
||||
bool debuggable, const char* oat_dir);
|
||||
int mark_boot_complete(const char *instruction_set);
|
||||
int movefiles();
|
||||
int linklib(const char* target, const char* source, int userId);
|
||||
int linklib(const char *uuid, const char* target, const char* source, int userId);
|
||||
int idmap(const char *target_path, const char *overlay_path, uid_t uid);
|
||||
int restorecon_data(const char* pkgName, const char* seinfo, uid_t uid);
|
||||
int restorecon_data(const char *uuid, const char* pkgName, const char* seinfo, uid_t uid);
|
||||
int create_oat_dir(const char* oat_dir, const char *instruction_set);
|
||||
int rm_package_dir(const char* apk_path);
|
||||
int calculate_oat_file_path(char path[PKG_PATH_MAX], const char *oat_dir, const char *apk_path,
|
||||
|
||||
@ -8,6 +8,7 @@ test_src_files := \
|
||||
installd_utils_test.cpp
|
||||
|
||||
shared_libraries := \
|
||||
libbase \
|
||||
libutils \
|
||||
libcutils \
|
||||
|
||||
|
||||
@ -321,6 +321,7 @@ TEST_F(UtilsTest, CreatePkgPath_LongPkgNameSuccess) {
|
||||
|
||||
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";
|
||||
}
|
||||
@ -371,20 +372,6 @@ TEST_F(UtilsTest, CreatePkgPath_SecondaryUser) {
|
||||
<< "Package path should be in /data/user/";
|
||||
}
|
||||
|
||||
TEST_F(UtilsTest, CreatePkgPathInDir_ProtectedDir) {
|
||||
char path[PKG_PATH_MAX];
|
||||
|
||||
dir_rec_t dir;
|
||||
dir.path = (char*) "/data/app-private/";
|
||||
dir.len = strlen(dir.path);
|
||||
|
||||
EXPECT_EQ(0, create_pkg_path_in_dir(path, &dir, "com.example.package", ".apk"))
|
||||
<< "Should successfully create package path.";
|
||||
|
||||
EXPECT_STREQ("/data/app-private/com.example.package.apk", path)
|
||||
<< "Package path should be in /data/app-private/";
|
||||
}
|
||||
|
||||
TEST_F(UtilsTest, CreatePersonaPath_Primary) {
|
||||
char path[PKG_PATH_MAX];
|
||||
|
||||
@ -482,4 +469,14 @@ TEST_F(UtilsTest, AppendAndIncrement_TooBig) {
|
||||
<< "String should fail because it's too large to fit";
|
||||
}
|
||||
|
||||
TEST_F(UtilsTest, CreatePackageDataPath) {
|
||||
EXPECT_EQ("/data/data/com.example", create_package_data_path(nullptr, "com.example", 0));
|
||||
EXPECT_EQ("/data/user/10/com.example", create_package_data_path(nullptr, "com.example", 10));
|
||||
|
||||
EXPECT_EQ("/mnt/expand/57f8f4bc-abf4-655f-bf67-946fc0f9f25b/user/0/com.example",
|
||||
create_package_data_path("57f8f4bc-abf4-655f-bf67-946fc0f9f25b", "com.example", 0));
|
||||
EXPECT_EQ("/mnt/expand/57f8f4bc-abf4-655f-bf67-946fc0f9f25b/user/10/com.example",
|
||||
create_package_data_path("57f8f4bc-abf4-655f-bf67-946fc0f9f25b", "com.example", 10));
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -16,86 +16,69 @@
|
||||
|
||||
#include "installd.h"
|
||||
|
||||
#include <base/stringprintf.h>
|
||||
#include <base/logging.h>
|
||||
|
||||
#define CACHE_NOISY(x) //x
|
||||
|
||||
int create_pkg_path_in_dir(char path[PKG_PATH_MAX],
|
||||
const dir_rec_t* dir,
|
||||
const char* pkgname,
|
||||
const char* postfix)
|
||||
{
|
||||
const size_t postfix_len = strlen(postfix);
|
||||
using android::base::StringPrintf;
|
||||
|
||||
const size_t pkgname_len = strlen(pkgname);
|
||||
if (pkgname_len > PKG_NAME_MAX) {
|
||||
return -1;
|
||||
/**
|
||||
* Check that given string is valid filename, and that it attempts no
|
||||
* parent or child directory traversal.
|
||||
*/
|
||||
static bool is_valid_filename(const std::string& name) {
|
||||
if (name.empty() || (name == ".") || (name == "..")
|
||||
|| (name.find('/') != std::string::npos)) {
|
||||
return false;
|
||||
} else {
|
||||
return true;
|
||||
}
|
||||
|
||||
if (is_valid_package_name(pkgname) < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if ((pkgname_len + dir->len + postfix_len) >= PKG_PATH_MAX) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
char *dst = path;
|
||||
size_t dst_size = PKG_PATH_MAX;
|
||||
|
||||
if (append_and_increment(&dst, dir->path, &dst_size) < 0
|
||||
|| append_and_increment(&dst, pkgname, &dst_size) < 0
|
||||
|| append_and_increment(&dst, postfix, &dst_size) < 0) {
|
||||
ALOGE("Error building APK path");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create the package path name for a given package name with a postfix for
|
||||
* a certain userid. Returns 0 on success, and -1 on failure.
|
||||
* Create the path name where package data should be stored for the given
|
||||
* volume UUID, package name, and user ID. An empty UUID is assumed to be
|
||||
* internal storage.
|
||||
*/
|
||||
int create_pkg_path(char path[PKG_PATH_MAX],
|
||||
const char *pkgname,
|
||||
const char *postfix,
|
||||
userid_t userid)
|
||||
{
|
||||
size_t userid_len;
|
||||
const char* userid_prefix;
|
||||
if (userid == 0) {
|
||||
userid_prefix = PRIMARY_USER_PREFIX;
|
||||
userid_len = 0;
|
||||
std::string create_package_data_path(const char* volume_uuid,
|
||||
const char* package_name, userid_t user) {
|
||||
CHECK(is_valid_filename(package_name));
|
||||
CHECK(is_valid_package_name(package_name) == 0);
|
||||
|
||||
if (volume_uuid == nullptr) {
|
||||
if (user == 0) {
|
||||
// /data/data/com.example
|
||||
return StringPrintf("%sdata/%s", android_data_dir.path, package_name);
|
||||
} else {
|
||||
userid_prefix = SECONDARY_USER_PREFIX;
|
||||
userid_len = snprintf(NULL, 0, "%d", userid);
|
||||
// /data/user/0/com.example
|
||||
return StringPrintf("%suser/%u/%s", android_data_dir.path, user, package_name);
|
||||
}
|
||||
} else {
|
||||
CHECK(is_valid_filename(volume_uuid));
|
||||
|
||||
const size_t prefix_len = android_data_dir.len + strlen(userid_prefix)
|
||||
+ userid_len + 1 /*slash*/;
|
||||
char prefix[prefix_len + 1];
|
||||
// /mnt/expand/uuid/user/0/com.example
|
||||
return StringPrintf("%s%s/user/%u/%s", android_mnt_expand_dir.path,
|
||||
volume_uuid, user, package_name);
|
||||
}
|
||||
}
|
||||
|
||||
char *dst = prefix;
|
||||
size_t dst_size = sizeof(prefix);
|
||||
|
||||
if (append_and_increment(&dst, android_data_dir.path, &dst_size) < 0
|
||||
|| append_and_increment(&dst, userid_prefix, &dst_size) < 0) {
|
||||
ALOGE("Error building prefix for APK path");
|
||||
int create_pkg_path(char path[PKG_PATH_MAX], const char *pkgname,
|
||||
const char *postfix, userid_t userid) {
|
||||
if (is_valid_package_name(pkgname) != 0) {
|
||||
path[0] = '\0';
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (userid != 0) {
|
||||
int ret = snprintf(dst, dst_size, "%d/", userid);
|
||||
if (ret < 0 || (size_t) ret != userid_len + 1) {
|
||||
ALOGW("Error appending UID to APK path");
|
||||
std::string _tmp(create_package_data_path(nullptr, pkgname, userid) + postfix);
|
||||
const char* tmp = _tmp.c_str();
|
||||
if (strlen(tmp) >= PKG_PATH_MAX) {
|
||||
path[0] = '\0';
|
||||
return -1;
|
||||
} else {
|
||||
strcpy(path, tmp);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
dir_rec_t dir;
|
||||
dir.path = prefix;
|
||||
dir.len = prefix_len;
|
||||
|
||||
return create_pkg_path_in_dir(path, &dir, pkgname, postfix);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -182,6 +165,10 @@ int is_valid_package_name(const char* pkgname) {
|
||||
const char *x = pkgname;
|
||||
int alpha = -1;
|
||||
|
||||
if (strlen(pkgname) > PKG_NAME_MAX) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
while (*x) {
|
||||
if (isalnum(*x) || (*x == '_')) {
|
||||
/* alphanumeric or underscore are fine */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user