static jint com_android_internal_os_Zygote_nativeForkAndSpecialize(
JNIEnv* env, jclass, jint uid, jint gid, jintArray gids,
jint debug_flags, jobjectArray rlimits,
jint mount_external, jstring se_info, jstring se_name,
jintArray fdsToClose) {
return ForkAndSpecializeCommon(env, uid, gid, gids, debug_flags,
rlimits, 0, 0, mount_external, se_info, se_name, false, fdsToClose);
}
static jint com_android_internal_os_Zygote_nativeForkAndSpecialize(
JNIEnv* env, jclass, jint uid, jint gid, jintArray gids,
jint debug_flags, jobjectArray rlimits,
jint mount_external, jstring se_info, jstring se_name,
jintArray fdsToClose, jstring instructionSet, jstring appDataDir) {
// Grant CAP_WAKE_ALARM to the Bluetooth process.
jlong capabilities = 0;
if (uid == AID_BLUETOOTH) {
capabilities |= (1LL << CAP_WAKE_ALARM);
}
return ForkAndSpecializeCommon(env, uid, gid, gids, debug_flags,
rlimits, capabilities, capabilities, mount_external, se_info,
se_name, false, fdsToClose, instructionSet, appDataDir);
}
static jint com_android_internal_os_Zygote_nativeForkSystemServer(
JNIEnv* env, jclass, uid_t uid, gid_t gid, jintArray gids,
jint debug_flags, jobjectArray rlimits, jlong permittedCapabilities,
jlong effectiveCapabilities) {
pid_t pid = ForkAndSpecializeCommon(env, uid, gid, gids,
debug_flags, rlimits,
permittedCapabilities, effectiveCapabilities,
MOUNT_EXTERNAL_NONE, NULL, NULL, true, NULL);
if (pid > 0) {
// The zygote process checks whether the child process has died or not.
ALOGI("System server process %d has been created", pid);
gSystemServerPid = pid;
// There is a slight window that the system server process has crashed
// but it went unnoticed because we haven't published its pid yet. So
// we recheck here just to make sure that all is well.
int status;
if (waitpid(pid, &status, WNOHANG) == pid) {
ALOGE("System server process %d has died. Restarting Zygote!", pid);
RuntimeAbort(env);
}
}
return pid;
}
static jint com_android_internal_os_Zygote_nativeForkAndSpecialize(
JNIEnv* env, jclass, jint uid, jint gid, jintArray gids,
jint debug_flags, jobjectArray rlimits,
jint mount_external, jstring se_info, jstring se_name,
jintArray fdsToClose, jstring instructionSet, jstring appDataDir) {
jlong capabilities = 0;
// Grant CAP_WAKE_ALARM to the Bluetooth process.
if (uid == AID_BLUETOOTH) {
capabilities |= (1LL << CAP_WAKE_ALARM);
}
// Grant CAP_BLOCK_SUSPEND to processes that belong to GID "wakelock"
bool gid_wakelock_found = false;
if (gid == AID_WAKELOCK) {
gid_wakelock_found = true;
} else if (gids != NULL) {
jsize gids_num = env->GetArrayLength(gids);
ScopedIntArrayRO ar(env, gids);
if (ar.get() == NULL) {
RuntimeAbort(env, __LINE__, "Bad gids array");
}
for (int i = 0; i < gids_num; i++) {
if (ar[i] == AID_WAKELOCK) {
gid_wakelock_found = true;
break;
}
}
}
if (gid_wakelock_found) {
capabilities |= (1LL << CAP_BLOCK_SUSPEND);
}
return ForkAndSpecializeCommon(env, uid, gid, gids, debug_flags,
rlimits, capabilities, capabilities, mount_external, se_info,
se_name, false, fdsToClose, instructionSet, appDataDir);
}
