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startup_appspawn/standard/appspawn_service.c
openharmony_ci 86adf4321a
!1506 modify cold start timeout 
Merge pull request !1506 from 杨浩/0929timeout
2024-10-05 15:12:48 +00:00

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/*
* Copyright (c) 2024 Huawei Device Co., Ltd.
* 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 "appspawn_service.h"
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/signalfd.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include <signal.h>
#include <sys/mount.h>
#include <unistd.h>
#include <sys/prctl.h>
#include "appspawn.h"
#include "appspawn_hook.h"
#include "appspawn_modulemgr.h"
#include "appspawn_manager.h"
#include "appspawn_msg.h"
#include "appspawn_server.h"
#include "appspawn_utils.h"
#include "init_socket.h"
#include "init_utils.h"
#include "parameter.h"
#include "appspawn_adapter.h"
#include "securec.h"
#ifdef APPSPAWN_HISYSEVENT
#include "appspawn_hisysevent.h"
#endif
#ifdef USE_ENCAPS
#include <sys/ioctl.h>
#endif
#define PARAM_BUFFER_SIZE 10
#define PATH_SIZE 256
#define FD_PATH_SIZE 128
#define MAX_MEM_SIZE (4 * 1024)
#ifndef PIDFD_NONBLOCK
#define PIDFD_NONBLOCK O_NONBLOCK
#endif
static void WaitChildTimeout(const TimerHandle taskHandle, void *context);
static void ProcessChildResponse(const WatcherHandle taskHandle, int fd, uint32_t *events, const void *context);
static void WaitChildDied(pid_t pid);
static void OnReceiveRequest(const TaskHandle taskHandle, const uint8_t *buffer, uint32_t buffLen);
static void ProcessRecvMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message);
#ifdef USE_ENCAPS
static int OpenDevEncaps(void)
{
int fd = open("/dev/encaps", O_RDWR);
if (fd < 0) {
APPSPAWN_LOGE("AppSpawnChild SetEncapsFlag open failed");
return -1;
}
return fd;
}
static void CloseDevEncaps(int fd)
{
if (fd < 0) {
return;
}
close(fd);
}
#endif
// FD_CLOEXEC
static inline void SetFdCtrl(int fd, int opt)
{
int option = fcntl(fd, F_GETFD);
int ret = fcntl(fd, F_SETFD, option | opt);
if (ret < 0) {
APPSPAWN_LOGI("Set fd %{public}d option %{public}d %{public}d result: %{public}d", fd, option, opt, errno);
}
}
static void AppQueueDestroyProc(const AppSpawnMgr *mgr, AppSpawnedProcess *appInfo, void *data)
{
pid_t pid = appInfo->pid;
APPSPAWN_LOGI("kill %{public}s pid: %{public}d", appInfo->name, appInfo->pid);
// notify child proess died,clean sandbox info
ProcessMgrHookExecute(STAGE_SERVER_APP_DIED, GetAppSpawnContent(), appInfo);
OH_ListRemove(&appInfo->node);
OH_ListInit(&appInfo->node);
free(appInfo);
if (pid > 0 && kill(pid, SIGKILL) != 0) {
APPSPAWN_LOGE("unable to kill process, pid: %{public}d errno: %{public}d", pid, errno);
}
}
static void StopAppSpawn(void)
{
// delete nwespawn, and wait exit. Otherwise, the process of nwebspawn spawning will become zombie
AppSpawnedProcess *appInfo = GetSpawnedProcessByName(NWEBSPAWN_SERVER_NAME);
if (appInfo != NULL) {
APPSPAWN_LOGI("kill %{public}s pid: %{public}d", appInfo->name, appInfo->pid);
int exitStatus = 0;
KillAndWaitStatus(appInfo->pid, SIGTERM, &exitStatus);
OH_ListRemove(&appInfo->node);
OH_ListInit(&appInfo->node);
free(appInfo);
}
// delete nativespawn, and wait exit. Otherwise, the process of nativespawn spawning will become zombie
appInfo = GetSpawnedProcessByName(NATIVESPAWN_SERVER_NAME);
if (appInfo != NULL) {
APPSPAWN_LOGI("kill %{public}s pid: %{public}d", appInfo->name, appInfo->pid);
int exitStatus = 0;
KillAndWaitStatus(appInfo->pid, SIGTERM, &exitStatus);
OH_ListRemove(&appInfo->node);
OH_ListInit(&appInfo->node);
free(appInfo);
}
TraversalSpawnedProcess(AppQueueDestroyProc, NULL);
APPSPAWN_LOGI("StopAppSpawn ");
#ifdef APPSPAWN_HISYSEVENT
AppSpawnHiSysEventWrite();
#endif
LE_StopLoop(LE_GetDefaultLoop());
}
static inline void DumpStatus(const char *appName, pid_t pid, int status)
{
if (WIFSIGNALED(status)) {
APPSPAWN_LOGW("%{public}s with pid %{public}d exit with signal:%{public}d", appName, pid, WTERMSIG(status));
}
if (WIFEXITED(status)) {
APPSPAWN_LOGW("%{public}s with pid %{public}d exit with code:%{public}d", appName, pid, WEXITSTATUS(status));
}
}
static void HandleDiedPid(pid_t pid, uid_t uid, int status)
{
AppSpawnContent *content = GetAppSpawnContent();
if (pid == content->reservedPid) {
APPSPAWN_LOGW("HandleDiedPid with reservedPid %{public}d", pid);
content->reservedPid = 0;
}
AppSpawnedProcess *appInfo = GetSpawnedProcess(pid);
if (appInfo == NULL) { // If an exception occurs during app spawning, kill pid, return failed
WaitChildDied(pid);
DumpStatus("unknown", pid, status);
return;
}
appInfo->exitStatus = status;
APPSPAWN_CHECK_ONLY_LOG(appInfo->uid == uid, "Invalid uid %{public}u %{public}u", appInfo->uid, uid);
DumpStatus(appInfo->name, pid, status);
ProcessMgrHookExecute(STAGE_SERVER_APP_DIED, GetAppSpawnContent(), appInfo);
// if current process of death is nwebspawn, restart appspawn
if (strcmp(appInfo->name, NWEBSPAWN_SERVER_NAME) == 0) {
OH_ListRemove(&appInfo->node);
free(appInfo);
APPSPAWN_LOGW("Current process of death is nwebspawn, pid = %{public}d, restart appspawn", pid);
StopAppSpawn();
return;
}
// move app info to died queue in NWEBSPAWN, or delete appinfo
TerminateSpawnedProcess(appInfo);
}
APPSPAWN_STATIC void ProcessSignal(const struct signalfd_siginfo *siginfo)
{
APPSPAWN_LOGI("ProcessSignal signum %{public}d %{public}d", siginfo->ssi_signo, siginfo->ssi_pid);
switch (siginfo->ssi_signo) {
case SIGCHLD: { // delete pid from app map
pid_t pid;
int status;
while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
APPSPAWN_CHECK(WIFSIGNALED(status) || WIFEXITED(status), return,
"ProcessSignal with wrong status:%{public}d", status);
HandleDiedPid(pid, siginfo->ssi_uid, status);
}
#if (defined(CJAPP_SPAWN) || defined(NATIVE_SPAWN))
if (OH_ListGetCnt(&GetAppSpawnMgr()->appQueue) == 0) {
LE_StopLoop(LE_GetDefaultLoop());
}
#endif
break;
}
case SIGTERM: { // appswapn killed, use kill without parameter
StopAppSpawn();
break;
}
default:
APPSPAWN_LOGI("SigHandler, unsupported signal %{public}d.", siginfo->ssi_signo);
break;
}
}
static void AppSpawningCtxOnClose(const AppSpawnMgr *mgr, AppSpawningCtx *ctx, void *data)
{
if (ctx->message == NULL || ctx->message->connection != data) {
return;
}
APPSPAWN_LOGI("Kill process, pid: %{public}d app: %{public}s", ctx->pid, GetProcessName(ctx));
if (ctx->pid > 0 && kill(ctx->pid, SIGKILL) != 0) {
APPSPAWN_LOGE("unable to kill process, pid: %{public}d errno: %{public}d", ctx->pid, errno);
}
DeleteAppSpawningCtx(ctx);
}
static void OnClose(const TaskHandle taskHandle)
{
if (!IsSpawnServer(GetAppSpawnMgr())) {
return;
}
AppSpawnConnection *connection = (AppSpawnConnection *)LE_GetUserData(taskHandle);
APPSPAWN_CHECK(connection != NULL, return, "Invalid connection");
if (connection->receiverCtx.timer) {
LE_StopTimer(LE_GetDefaultLoop(), connection->receiverCtx.timer);
connection->receiverCtx.timer = NULL;
}
APPSPAWN_LOGI("OnClose connectionId: %{public}u socket %{public}d",
connection->connectionId, LE_GetSocketFd(taskHandle));
DeleteAppSpawnMsg(connection->receiverCtx.incompleteMsg);
connection->receiverCtx.incompleteMsg = NULL;
// connect close, to close spawning app
AppSpawningCtxTraversal(AppSpawningCtxOnClose, connection);
}
static void OnDisConnect(const TaskHandle taskHandle)
{
AppSpawnConnection *connection = (AppSpawnConnection *)LE_GetUserData(taskHandle);
APPSPAWN_CHECK(connection != NULL, return, "Invalid connection");
APPSPAWN_LOGI("OnDisConnect connectionId: %{public}u socket %{public}d",
connection->connectionId, LE_GetSocketFd(taskHandle));
OnClose(taskHandle);
}
static void SendMessageComplete(const TaskHandle taskHandle, BufferHandle handle)
{
AppSpawnConnection *connection = (AppSpawnConnection *)LE_GetUserData(taskHandle);
APPSPAWN_CHECK(connection != NULL, return, "Invalid connection");
uint32_t bufferSize = sizeof(AppSpawnResponseMsg);
AppSpawnResponseMsg *msg = (AppSpawnResponseMsg *)LE_GetBufferInfo(handle, NULL, &bufferSize);
if (msg == NULL) {
return;
}
AppSpawnedProcess *appInfo = GetSpawnedProcess(msg->result.pid);
if (appInfo == NULL) {
return;
}
APPSPAWN_LOGI("SendMessageComplete connectionId: %{public}u result %{public}d app %{public}s pid %{public}d",
connection->connectionId, LE_GetSendResult(handle), appInfo->name, msg->result.pid);
if (LE_GetSendResult(handle) != 0 && msg->result.pid > 0) {
kill(msg->result.pid, SIGKILL);
}
}
static int SendResponse(const AppSpawnConnection *connection, const AppSpawnMsg *msg, int result, pid_t pid)
{
APPSPAWN_LOGV("SendResponse connectionId: %{public}u result: 0x%{public}x pid: %{public}d",
connection->connectionId, result, pid);
uint32_t bufferSize = sizeof(AppSpawnResponseMsg);
BufferHandle handle = LE_CreateBuffer(LE_GetDefaultLoop(), bufferSize);
AppSpawnResponseMsg *buffer = (AppSpawnResponseMsg *)LE_GetBufferInfo(handle, NULL, &bufferSize);
int ret = memcpy_s(buffer, bufferSize, msg, sizeof(AppSpawnMsg));
APPSPAWN_CHECK(ret == 0, LE_FreeBuffer(LE_GetDefaultLoop(), NULL, handle);
return -1, "Failed to memcpy_s bufferSize");
buffer->result.result = result;
buffer->result.pid = pid;
return LE_Send(LE_GetDefaultLoop(), connection->stream, handle, bufferSize);
}
static void WaitMsgCompleteTimeOut(const TimerHandle taskHandle, void *context)
{
AppSpawnConnection *connection = (AppSpawnConnection *)context;
APPSPAWN_LOGE("Long time no msg complete so close connectionId: %{public}u", connection->connectionId);
DeleteAppSpawnMsg(connection->receiverCtx.incompleteMsg);
connection->receiverCtx.incompleteMsg = NULL;
LE_CloseStreamTask(LE_GetDefaultLoop(), connection->stream);
}
static inline int StartTimerForCheckMsg(AppSpawnConnection *connection)
{
if (connection->receiverCtx.timer != NULL) {
return 0;
}
int ret = LE_CreateTimer(LE_GetDefaultLoop(), &connection->receiverCtx.timer, WaitMsgCompleteTimeOut, connection);
if (ret == 0) {
ret = LE_StartTimer(LE_GetDefaultLoop(), connection->receiverCtx.timer, MAX_WAIT_MSG_COMPLETE, 1);
}
return ret;
}
static int HandleRecvMessage(const TaskHandle taskHandle, uint8_t * buffer, int bufferSize, int flags)
{
int socketFd = LE_GetSocketFd(taskHandle);
struct iovec iov = {
.iov_base = buffer,
.iov_len = bufferSize,
};
char ctrlBuffer[CMSG_SPACE(APP_MAX_FD_COUNT * sizeof(int))];
struct msghdr msg = {
.msg_iov = &iov,
.msg_iovlen = 1,
.msg_control = ctrlBuffer,
.msg_controllen = sizeof(ctrlBuffer),
};
AppSpawnConnection *connection = (AppSpawnConnection *) LE_GetUserData(taskHandle);
APPSPAWN_CHECK(connection != NULL, return -1, "Invalid connection");
errno = 0;
int recvLen = recvmsg(socketFd, &msg, flags);
APPSPAWN_CHECK_ONLY_LOG(errno == 0, "recvmsg with errno %{public}d", errno);
struct cmsghdr *cmsg = NULL;
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
int fdCount = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
int *fd = (int *) CMSG_DATA(cmsg);
APPSPAWN_CHECK(fdCount <= APP_MAX_FD_COUNT, return -1,
"failed to recv fd %{public}d %{public}d", connection->receiverCtx.fdCount, fdCount);
int ret = memcpy_s(connection->receiverCtx.fds,
fdCount * sizeof(int), fd, fdCount * sizeof(int));
APPSPAWN_CHECK(ret == 0, return -1, "memcpy_s fd ret %{public}d", ret);
connection->receiverCtx.fdCount = fdCount;
}
}
return recvLen;
}
static int OnConnection(const LoopHandle loopHandle, const TaskHandle server)
{
APPSPAWN_CHECK(server != NULL && loopHandle != NULL, return -1, "Error server");
static uint32_t connectionId = 0;
TaskHandle stream;
LE_StreamInfo info = {};
info.baseInfo.flags = TASK_STREAM | TASK_PIPE | TASK_CONNECT;
info.baseInfo.close = OnClose;
info.baseInfo.userDataSize = sizeof(AppSpawnConnection);
info.disConnectComplete = OnDisConnect;
info.sendMessageComplete = SendMessageComplete;
info.recvMessage = OnReceiveRequest;
info.handleRecvMsg = HandleRecvMessage;
LE_STATUS ret = LE_AcceptStreamClient(loopHandle, server, &stream, &info);
APPSPAWN_CHECK(ret == 0, return -1, "Failed to alloc stream");
AppSpawnConnection *connection = (AppSpawnConnection *)LE_GetUserData(stream);
APPSPAWN_CHECK(connection != NULL, return -1, "Failed to alloc stream");
struct ucred cred = {-1, -1, -1};
socklen_t credSize = sizeof(struct ucred);
if ((getsockopt(LE_GetSocketFd(stream), SOL_SOCKET, SO_PEERCRED, &cred, &credSize) < 0) ||
(cred.uid != DecodeUid("foundation") && cred.uid != DecodeUid("root")
&& cred.uid != DecodeUid("app_fwk_update"))) {
APPSPAWN_LOGE("Invalid uid %{public}d from client", cred.uid);
LE_CloseStreamTask(LE_GetDefaultLoop(), stream);
return -1;
}
SetFdCtrl(LE_GetSocketFd(stream), FD_CLOEXEC);
connection->connectionId = ++connectionId;
connection->stream = stream;
connection->receiverCtx.fdCount = 0;
connection->receiverCtx.incompleteMsg = NULL;
connection->receiverCtx.timer = NULL;
connection->receiverCtx.msgRecvLen = 0;
connection->receiverCtx.nextMsgId = 1;
APPSPAWN_LOGI("OnConnection connectionId: %{public}u fd %{public}d ",
connection->connectionId, LE_GetSocketFd(stream));
return 0;
}
static void OnReceiveRequest(const TaskHandle taskHandle, const uint8_t *buffer, uint32_t buffLen)
{
AppSpawnConnection *connection = (AppSpawnConnection *)LE_GetUserData(taskHandle);
APPSPAWN_CHECK(connection != NULL, LE_CloseTask(LE_GetDefaultLoop(), taskHandle);
return, "Failed to get client form socket");
APPSPAWN_CHECK(buffLen < MAX_MSG_TOTAL_LENGTH, LE_CloseTask(LE_GetDefaultLoop(), taskHandle);
return, "Message too long %{public}u", buffLen);
uint32_t reminder = 0;
uint32_t currLen = 0;
AppSpawnMsgNode *message = connection->receiverCtx.incompleteMsg; // incomplete msg
connection->receiverCtx.incompleteMsg = NULL;
int ret = 0;
do {
APPSPAWN_LOGI("OnReceiveRequest connectionId: %{public}u start: 0x%{public}x buffLen %{public}d",
connection->connectionId, *(uint32_t *)(buffer + currLen), buffLen - currLen);
ret = GetAppSpawnMsgFromBuffer(buffer + currLen, buffLen - currLen,
&message, &connection->receiverCtx.msgRecvLen, &reminder);
APPSPAWN_CHECK_ONLY_EXPER(ret == 0, break);
if (connection->receiverCtx.msgRecvLen != message->msgHeader.msgLen) { // recv complete msg
connection->receiverCtx.incompleteMsg = message;
message = NULL;
break;
}
connection->receiverCtx.msgRecvLen = 0;
if (connection->receiverCtx.timer) {
LE_StopTimer(LE_GetDefaultLoop(), connection->receiverCtx.timer);
connection->receiverCtx.timer = NULL;
}
// decode msg
ret = DecodeAppSpawnMsg(message);
APPSPAWN_CHECK_ONLY_EXPER(ret == 0, break);
(void)ProcessRecvMsg(connection, message);
message = NULL;
currLen += buffLen - reminder;
} while (reminder > 0);
if (message) {
DeleteAppSpawnMsg(message);
}
if (ret != 0) {
LE_CloseTask(LE_GetDefaultLoop(), taskHandle);
return;
}
if (connection->receiverCtx.incompleteMsg != NULL) { // Start the detection timer
ret = StartTimerForCheckMsg(connection);
APPSPAWN_CHECK(ret == 0, LE_CloseStreamTask(LE_GetDefaultLoop(), taskHandle);
return, "Failed to create time for connection");
}
return;
}
static char *GetMapMem(uint32_t clientId, const char *processName, uint32_t size, bool readOnly, bool isNweb)
{
char path[PATH_MAX] = {};
int len = sprintf_s(path, sizeof(path), APPSPAWN_MSG_DIR "%s/%s_%d",
isNweb ? "nwebspawn" : "appspawn", processName, clientId);
APPSPAWN_CHECK(len > 0, return NULL, "Failed to format path %{public}s", processName);
APPSPAWN_LOGV("GetMapMem for child %{public}s memSize %{public}u", path, size);
int prot = PROT_READ;
int mode = O_RDONLY;
if (!readOnly) {
mode = O_CREAT | O_RDWR | O_TRUNC;
prot = PROT_READ | PROT_WRITE;
}
int fd = open(path, mode, S_IRWXU);
APPSPAWN_CHECK(fd >= 0, return NULL, "Failed to open errno %{public}d path %{public}s", errno, path);
if (!readOnly) {
ftruncate(fd, size);
}
void *areaAddr = (void *)mmap(NULL, size, prot, MAP_SHARED, fd, 0);
close(fd);
APPSPAWN_CHECK(areaAddr != MAP_FAILED && areaAddr != NULL,
return NULL, "Failed to map memory error %{public}d fileName %{public}s ", errno, path);
return (char *)areaAddr;
}
APPSPAWN_STATIC int WriteMsgToChild(AppSpawningCtx *property, bool isNweb)
{
APPSPAWN_CHECK(property != NULL && property->message != NULL, return APPSPAWN_MSG_INVALID,
"Failed to WriteMsgToChild property invalid");
const uint32_t memSize = (property->message->msgHeader.msgLen / 4096 + 1) * 4096; // 4096 4K
char *buffer = GetMapMem(property->client.id, GetProcessName(property), memSize, false, isNweb);
APPSPAWN_CHECK(buffer != NULL, return APPSPAWN_SYSTEM_ERROR,
"Failed to map memory error %{public}d fileName %{public}s ", errno, GetProcessName(property));
// copy msg header
int ret = memcpy_s(buffer, memSize, &property->message->msgHeader, sizeof(AppSpawnMsg));
if (ret == 0) {
ret = memcpy_s((char *)buffer + sizeof(AppSpawnMsg), memSize - sizeof(AppSpawnMsg),
property->message->buffer, property->message->msgHeader.msgLen - sizeof(AppSpawnMsg));
}
if (ret != 0) {
APPSPAWN_LOGE("Failed to copy msg fileName %{public}s ", GetProcessName(property));
munmap((char *)buffer, memSize);
return APPSPAWN_SYSTEM_ERROR;
}
property->forkCtx.msgSize = memSize;
property->forkCtx.childMsg = buffer;
APPSPAWN_LOGV("Write msg to child: %{public}u success", property->client.id);
return 0;
}
static int InitForkContext(AppSpawningCtx *property)
{
if (pipe(property->forkCtx.fd) == -1) {
APPSPAWN_LOGE("create pipe fail, errno: %{public}d", errno);
return errno;
}
int option = fcntl(property->forkCtx.fd[0], F_GETFD);
if (option > 0) {
(void)fcntl(property->forkCtx.fd[0], F_SETFD, option | O_NONBLOCK);
}
return 0;
}
static void ClosePidfdWatcher(const TaskHandle taskHandle)
{
int fd = LE_GetSocketFd(taskHandle);
if (fd >= 0) {
close(fd);
}
void *p = LE_GetUserData(taskHandle);
if (p != NULL) {
free(*(void **)p);
}
}
static void ProcessChildProcessFd(const WatcherHandle taskHandle, int fd, uint32_t *events, const void *context)
{
APPSPAWN_CHECK_ONLY_EXPER(context != NULL, return);
pid_t pid = *(pid_t *)context;
APPSPAWN_LOGI("Kill process group with process group id %{public}d, pidFd %{public}d", pid, fd);
AppSpawnedProcess *appInfo = GetSpawnedProcess(pid);
if (appInfo == NULL) {
APPSPAWN_LOGW("Cannot get app info by bundle name: %{public}d", pid);
return;
}
ProcessMgrHookExecute(STAGE_SERVER_APP_DIED, GetAppSpawnContent(), appInfo);
LE_CloseTask(LE_GetDefaultLoop(), taskHandle);
}
static int OpenPidFd(pid_t pid, unsigned int flags)
{
return syscall(SYS_pidfd_open, pid, flags);
}
static void WatchChildProcessFd(AppSpawningCtx *property)
{
if (property->pid <= 0) {
APPSPAWN_LOGW("Invalid child process pid, skip watch");
return;
}
if (IsNWebSpawnMode((AppSpawnMgr *)GetAppSpawnContent())) {
APPSPAWN_LOGV("Nwebspawn don't need add pidfd");
return;
}
AppSpawnedProcess *appInfo = GetSpawnedProcess(property->pid);
if (appInfo == NULL) {
APPSPAWN_LOGW("Cannot get app info of pid %{public}d", property->pid);
return;
}
int fd = OpenPidFd(property->pid, PIDFD_NONBLOCK); // PIDFD_NONBLOCK since Linux kernel 5.10
if (fd < 0) {
APPSPAWN_LOGW("Failed to open pid fd for app: %{public}s, err = %{public}d",
GetBundleName(property), errno);
return;
}
APPSPAWN_LOGI("watch app process pid %{public}d, pidFd %{public}d", property->pid, fd);
LE_WatchInfo watchInfo = {};
watchInfo.fd = fd;
watchInfo.flags = WATCHER_ONCE;
watchInfo.events = EVENT_READ;
watchInfo.close = ClosePidfdWatcher;
watchInfo.processEvent = ProcessChildProcessFd;
pid_t *appPid = (pid_t *)malloc(sizeof(pid_t));
APPSPAWN_CHECK_ONLY_EXPER(appPid != NULL, return);
*appPid = property->pid;
LE_STATUS status = LE_StartWatcher(LE_GetDefaultLoop(), &property->forkCtx.pidFdWatcherHandle, &watchInfo, appPid);
if (status != LE_SUCCESS) {
#ifndef APPSPAWN_TEST
close(fd);
#endif
APPSPAWN_LOGW("Failed to watch child pid fd, pid is %{public}d", property->pid);
}
}
static int IsChildColdRun(AppSpawningCtx *property)
{
return CheckAppMsgFlagsSet(property, APP_FLAGS_UBSAN_ENABLED)
|| CheckAppMsgFlagsSet(property, APP_FLAGS_ASANENABLED)
|| CheckAppMsgFlagsSet(property, APP_FLAGS_TSAN_ENABLED)
|| CheckAppMsgFlagsSet(property, APP_FLAGS_HWASAN_ENABLED)
|| (property->client.flags & APP_COLD_START);
}
static int AddChildWatcher(AppSpawningCtx *property)
{
uint32_t defTimeout = IsChildColdRun(property) ? COLD_CHILD_RESPONSE_TIMEOUT : WAIT_CHILD_RESPONSE_TIMEOUT;
uint32_t timeout = GetSpawnTimeout(defTimeout);
LE_WatchInfo watchInfo = {};
watchInfo.fd = property->forkCtx.fd[0];
watchInfo.flags = WATCHER_ONCE;
watchInfo.events = EVENT_READ;
watchInfo.processEvent = ProcessChildResponse;
LE_STATUS status = LE_StartWatcher(LE_GetDefaultLoop(), &property->forkCtx.watcherHandle, &watchInfo, property);
APPSPAWN_CHECK(status == LE_SUCCESS,
return APPSPAWN_SYSTEM_ERROR, "Failed to watch child %{public}d", property->pid);
status = LE_CreateTimer(LE_GetDefaultLoop(), &property->forkCtx.timer, WaitChildTimeout, property);
if (status == LE_SUCCESS) {
status = LE_StartTimer(LE_GetDefaultLoop(), property->forkCtx.timer, timeout * 1000, 0); // 1000 1s
}
if (status != LE_SUCCESS) {
if (property->forkCtx.timer != NULL) {
LE_StopTimer(LE_GetDefaultLoop(), property->forkCtx.timer);
}
property->forkCtx.timer = NULL;
LE_RemoveWatcher(LE_GetDefaultLoop(), property->forkCtx.watcherHandle);
property->forkCtx.watcherHandle = NULL;
APPSPAWN_LOGE("Failed to watch child %{public}d", property->pid);
return APPSPAWN_SYSTEM_ERROR;
}
return 0;
}
static bool IsSupportRunHnp()
{
char buffer[PARAM_BUFFER_SIZE] = {0};
int ret = GetParameter("const.startup.hnp.execute.enable", "false", buffer, PARAM_BUFFER_SIZE);
if (ret <= 0) {
APPSPAWN_LOGE("Get hnp execute enable param unsuccess! ret =%{public}d", ret);
return false;
}
if (strcmp(buffer, "true") == 0) {
return true;
}
return false;
}
static int WritePreforkMsg(AppSpawningCtx *property)
{
AppSpawnContent *content = GetAppSpawnContent();
if (content == NULL || content->propertyBuffer == NULL) {
APPSPAWN_LOGE("buffer is null can not write propery");
return -1;
}
int ret = memcpy_s(content->propertyBuffer, MAX_MEM_SIZE, &property->message->msgHeader, sizeof(AppSpawnMsg));
APPSPAWN_CHECK(ret == 0, goto fail, "memcpys_s msgHeader failed");
ret = memcpy_s((char *)content->propertyBuffer + sizeof(AppSpawnMsg), MAX_MEM_SIZE - sizeof(AppSpawnMsg),
property->message->buffer, property->message->msgHeader.msgLen - sizeof(AppSpawnMsg));
APPSPAWN_CHECK(ret == 0, goto fail, "memcpys_s AppSpawnMsg failed");
return ret;
fail:
munmap((char *)content->propertyBuffer, MAX_MEM_SIZE);
content->propertyBuffer = NULL;
return ret;
}
static int GetAppSpawnMsg(AppSpawningCtx *property)
{
uint8_t *buffer = (uint8_t *)GetMapMem(property->client.id, "prefork", MAX_MEM_SIZE, true, false);
if (buffer == NULL) {
APPSPAWN_LOGE("prefork buffer is null can not write propery");
return -1;
}
uint32_t msgRecvLen = 0;
uint32_t remainLen = 0;
property->forkCtx.childMsg = (char *)buffer;
property->forkCtx.msgSize = MAX_MEM_SIZE;
AppSpawnMsgNode *message = NULL;
int ret = GetAppSpawnMsgFromBuffer(buffer, ((AppSpawnMsg *)buffer)->msgLen, &message, &msgRecvLen, &remainLen);
// release map
APPSPAWN_LOGV("prefork GetAppSpawnMsg ret:%{public}d", ret);
if (ret == 0 && DecodeAppSpawnMsg(message) == 0 && CheckAppSpawnMsg(message) == 0) {
property->message = message;
message = NULL;
return 0;
}
return -1;
}
static void ClearMMAP(int clientId)
{
char path[PATH_MAX] = {0};
int ret = snprintf_s(path, sizeof(path), sizeof(path) - 1, APPSPAWN_MSG_DIR "appspawn/prefork_%d", clientId);
APPSPAWN_LOGV("prefork unlink %{public}s ret :%{public}d", path, ret);
if (ret > 0) {
errno = 0;
ret = unlink(path);
APPSPAWN_LOGV("prefork unlink result %{public}d %{public}d", ret, errno);
}
AppSpawnContent *content = GetAppSpawnContent();
if (content != NULL && content->propertyBuffer != NULL) {
ret = munmap(content->propertyBuffer, MAX_MEM_SIZE);
APPSPAWN_CHECK_ONLY_LOG(ret == 0, "munmap failed %{public}d", ret);
content->propertyBuffer = NULL;
}
}
static void ProcessPreFork(AppSpawnContent *content, AppSpawningCtx *property)
{
APPSPAWN_CHECK(pipe(content->preforkFd) == 0, return, "prefork with prefork pipe failed %{public}d", errno);
content->reservedPid = fork();
APPSPAWN_LOGV("prefork fork finish %{public}d,%{public}d,%{public}d,%{public}d,%{public}d",
content->reservedPid, content->preforkFd[0], content->preforkFd[1], content->parentToChildFd[0],
content->parentToChildFd[1]);
if (content->reservedPid == 0) {
(void)close(property->forkCtx.fd[0]);
(void)close(property->forkCtx.fd[1]);
int isRet = prctl(PR_SET_NAME, "apppool");
APPSPAWN_LOGI("prefork process start wait read msg with set processname %{public}d", isRet);
AppSpawnClient client = {0, 0};
int infoSize = read(content->parentToChildFd[0], &client, sizeof(AppSpawnClient));
if (infoSize != sizeof(AppSpawnClient)) {
APPSPAWN_LOGE("prefork process read msg failed %{public}d,%{public}d", infoSize, errno);
ProcessExit(0);
return;
}
property->client.id = client.id;
property->client.flags = client.flags;
property->isPrefork = true;
property->forkCtx.fd[0] = content->preforkFd[0];
property->forkCtx.fd[1] = content->preforkFd[1];
property->state = APP_STATE_SPAWNING;
if (GetAppSpawnMsg(property) == -1) {
APPSPAWN_LOGE("prefork child read GetAppSpawnMsg failed");
ClearMMAP(property->client.id);
content->notifyResToParent(content, &property->client, APPSPAWN_MSG_INVALID);
ProcessExit(0);
return;
}
ClearMMAP(property->client.id);
ProcessExit(AppSpawnChild(content, &property->client));
} else if (content->reservedPid < 0) {
APPSPAWN_LOGE("prefork fork child process failed %{public}d", content->reservedPid);
}
}
static int AppSpawnProcessMsgForPrefork(AppSpawnContent *content, AppSpawnClient *client, pid_t *childPid)
{
int ret = 0;
AppSpawningCtx *property = (AppSpawningCtx *)client;
if (content->reservedPid <= 0) {
APPSPAWN_CHECK(client != NULL, return ret, "client is null");
ret = InitForkContext((AppSpawningCtx *)client);
APPSPAWN_CHECK(ret == 0, return ret, "init fork context failed");
ret = AppSpawnProcessMsg(content, client, childPid);
} else {
APPSPAWN_CHECK_ONLY_EXPER(content->propertyBuffer == NULL, ClearMMAP(client->id));
content->propertyBuffer = GetMapMem(property->client.id, "prefork", MAX_MEM_SIZE, false, false);
APPSPAWN_CHECK(content->propertyBuffer != NULL, return -1, "GetPreforkMem failed");
ret = WritePreforkMsg(property);
APPSPAWN_CHECK(ret == 0, return ret, "WritePreforkMsg failed");
*childPid = content->reservedPid;
property->forkCtx.fd[0] = content->preforkFd[0];
property->forkCtx.fd[1] = content->preforkFd[1];
int option = fcntl(property->forkCtx.fd[0], F_GETFD);
if (option > 0) {
ret = fcntl(property->forkCtx.fd[0], F_SETFD, option | O_NONBLOCK);
APPSPAWN_CHECK_ONLY_LOG(ret == 0, "fcntl failed %{public}d,%{public}d", ret, errno);
}
ssize_t writesize = write(content->parentToChildFd[1], client, sizeof(AppSpawnClient)) ;
APPSPAWN_CHECK(writesize == sizeof(AppSpawnClient), kill(*childPid, SIGKILL);
*childPid = 0;
ret = -1,
"write msg to child failed %{public}d", errno);
}
ProcessPreFork(content, property);
return ret;
}
static bool IsSupportPrefork(AppSpawnContent *content, AppSpawnClient *client)
{
if (client == NULL || content == NULL) {
return false;
}
if (!content->enablePerfork) {
return false;
}
if (!content->isPrefork) {
if (pipe(content->parentToChildFd) == 0) {
content->isPrefork = true;
}
}
AppSpawningCtx *property = (AppSpawningCtx *)client;
if (content->mode == MODE_FOR_APP_SPAWN && !IsChildColdRun(property) && content->isPrefork
&& !CheckAppMsgFlagsSet(property, APP_FLAGS_CHILDPROCESS)) {
return true;
}
return false;
}
static bool IsBootFinished()
{
char buffer[32] = {0}; // 32 max
int ret = GetParameter("bootevent.boot.completed", "false", buffer, sizeof(buffer));
bool isBootCompleted = (ret > 0 && strcmp(buffer, "true") == 0);
return isBootCompleted;
}
static int RunAppSpawnProcessMsg(AppSpawnContent *content, AppSpawnClient *client, pid_t *childPid)
{
int ret = 0;
if (IsBootFinished() && IsSupportPrefork(content, client)) {
ret = AppSpawnProcessMsgForPrefork(content, client, childPid);
} else {
APPSPAWN_CHECK(client != NULL, return ret, "client is null");
ret = InitForkContext((AppSpawningCtx *)client);
APPSPAWN_CHECK(ret == 0, return ret, "init fork context failed");
ret = AppSpawnProcessMsg(content, client, childPid);
}
return ret;
}
static void ProcessSpawnReqMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
int ret = CheckAppSpawnMsg(message);
if (ret != 0) {
SendResponse(connection, &message->msgHeader, ret, 0);
DeleteAppSpawnMsg(message);
return;
}
if (IsDeveloperModeOpen()) {
if (IsSupportRunHnp()) {
SetAppSpawnMsgFlag(message, TLV_MSG_FLAGS, APP_FLAGS_DEVELOPER_MODE);
} else {
APPSPAWN_LOGI("Not support execute hnp file!");
}
}
AppSpawningCtx *property = CreateAppSpawningCtx();
if (property == NULL) {
SendResponse(connection, &message->msgHeader, APPSPAWN_SYSTEM_ERROR, 0);
DeleteAppSpawnMsg(message);
return;
}
property->state = APP_STATE_SPAWNING;
property->message = message;
message->connection = connection;
// mount el2 dir
// getWrapBundleNameValue
AppSpawnHookExecute(STAGE_PARENT_PRE_FORK, 0, GetAppSpawnContent(), &property->client);
if (IsDeveloperModeOn(property)) {
DumpAppSpawnMsg(property->message);
}
clock_gettime(CLOCK_MONOTONIC, &property->spawnStart);
ret = RunAppSpawnProcessMsg(GetAppSpawnContent(), &property->client, &property->pid);
AppSpawnHookExecute(STAGE_PARENT_POST_FORK, 0, GetAppSpawnContent(), &property->client);
if (ret != 0) { // wait child process result
SendResponse(connection, &message->msgHeader, ret, 0);
DeleteAppSpawningCtx(property);
return;
}
if (AddChildWatcher(property) != 0) { // wait child process result
kill(property->pid, SIGKILL);
SendResponse(connection, &message->msgHeader, ret, 0);
DeleteAppSpawningCtx(property);
return;
}
}
static uint32_t g_lastDiedAppId = 0;
static uint32_t g_crashTimes = 0;
#define MAX_CRASH_TIME 5
static void WaitChildDied(pid_t pid)
{
AppSpawningCtx *property = GetAppSpawningCtxByPid(pid);
if (property != NULL && property->state == APP_STATE_SPAWNING) {
APPSPAWN_LOGI("Child process %{public}s fail \'child crash \'pid %{public}d appId: %{public}d",
GetProcessName(property), property->pid, property->client.id);
if (property->client.id == g_lastDiedAppId + 1) {
g_crashTimes++;
} else {
g_crashTimes = 1;
}
g_lastDiedAppId = property->client.id;
SendResponse(property->message->connection, &property->message->msgHeader, APPSPAWN_CHILD_CRASH, 0);
DeleteAppSpawningCtx(property);
if (g_crashTimes >= MAX_CRASH_TIME) {
APPSPAWN_LOGW("Continuous failures in spawning the app, restart appspawn");
StopAppSpawn();
}
}
}
static void WaitChildTimeout(const TimerHandle taskHandle, void *context)
{
AppSpawningCtx *property = (AppSpawningCtx *)context;
APPSPAWN_LOGI("Child process %{public}s fail \'wait child timeout \'pid %{public}d appId: %{public}d",
GetProcessName(property), property->pid, property->client.id);
if (property->pid > 0) {
#if (!defined(CJAPP_SPAWN) && !defined(NATIVE_SPAWN))
DumpSpawnStack(property->pid);
#endif
kill(property->pid, SIGKILL);
}
SendResponse(property->message->connection, &property->message->msgHeader, APPSPAWN_SPAWN_TIMEOUT, 0);
DeleteAppSpawningCtx(property);
}
#define MSG_EXT_NAME_MAX_DECIMAL 10
#define MSG_EXT_NAME 1
static void ProcessChildResponse(const WatcherHandle taskHandle, int fd, uint32_t *events, const void *context)
{
AppSpawningCtx *property = (AppSpawningCtx *)context;
property->forkCtx.watcherHandle = NULL; // delete watcher
LE_RemoveWatcher(LE_GetDefaultLoop(), (WatcherHandle)taskHandle);
int result = 0;
(void)read(fd, &result, sizeof(result));
APPSPAWN_LOGI("Child process %{public}s success pid %{public}d appId: %{public}d result: %{public}d",
GetProcessName(property), property->pid, property->client.id, result);
APPSPAWN_CHECK(property->message != NULL, return, "Invalid message in ctx %{public}d", property->client.id);
if (result != 0) {
SendResponse(property->message->connection, &property->message->msgHeader, result, property->pid);
DeleteAppSpawningCtx(property);
return;
}
// success
AppSpawnedProcess *appInfo = AddSpawnedProcess(property->pid, GetBundleName(property));
uint32_t len = 0;
char *pidMaxStr = NULL;
pidMaxStr = GetAppPropertyExt(property, MSG_EXT_NAME_MAX_CHILD_PROCCESS_MAX, &len);
uint32_t pidMax = 0;
if (pidMaxStr != NULL && len != 0) {
pidMax = strtoul(pidMaxStr, NULL, MSG_EXT_NAME_MAX_DECIMAL);
}
#if MSG_EXT_NAME != 0
pidMax = 0;
#endif
if (appInfo) {
AppSpawnMsgDacInfo *dacInfo = GetAppProperty(property, TLV_DAC_INFO);
appInfo->uid = dacInfo != NULL ? dacInfo->uid : 0;
appInfo->max = pidMax;
appInfo->spawnStart.tv_sec = property->spawnStart.tv_sec;
appInfo->spawnStart.tv_nsec = property->spawnStart.tv_nsec;
#ifdef DEBUG_BEGETCTL_BOOT
if (IsDeveloperModeOpen()) {
appInfo->message = property->message;
}
#endif
clock_gettime(CLOCK_MONOTONIC, &appInfo->spawnEnd);
// add max info
}
WatchChildProcessFd(property);
ProcessMgrHookExecute(STAGE_SERVER_APP_ADD, GetAppSpawnContent(), appInfo);
// response
AppSpawnHookExecute(STAGE_PARENT_PRE_RELY, 0, GetAppSpawnContent(), &property->client);
SendResponse(property->message->connection, &property->message->msgHeader, result, property->pid);
AppSpawnHookExecute(STAGE_PARENT_POST_RELY, 0, GetAppSpawnContent(), &property->client);
#ifdef DEBUG_BEGETCTL_BOOT
if (IsDeveloperModeOpen()) {
property->message = NULL;
}
#endif
DeleteAppSpawningCtx(property);
}
static void NotifyResToParent(AppSpawnContent *content, AppSpawnClient *client, int result)
{
AppSpawningCtx *property = (AppSpawningCtx *)client;
int fd = property->forkCtx.fd[1];
if (fd >= 0) {
(void)write(fd, &result, sizeof(result));
(void)close(fd);
property->forkCtx.fd[1] = -1;
}
APPSPAWN_LOGV("NotifyResToParent client id: %{public}u result: 0x%{public}x", client->id, result);
}
static int CreateAppSpawnServer(TaskHandle *server, const char *socketName)
{
char path[128] = {0}; // 128 max path
int ret = snprintf_s(path, sizeof(path), sizeof(path) - 1, "%s%s", APPSPAWN_SOCKET_DIR, socketName);
APPSPAWN_CHECK(ret >= 0, return -1, "Failed to snprintf_s %{public}d", ret);
int socketId = GetControlSocket(socketName);
APPSPAWN_LOGI("get socket form env %{public}s socketId %{public}d", socketName, socketId);
LE_StreamServerInfo info = {};
info.baseInfo.flags = TASK_STREAM | TASK_PIPE | TASK_SERVER;
info.socketId = socketId;
info.server = path;
info.baseInfo.close = NULL;
info.incommingConnect = OnConnection;
MakeDirRec(path, 0711, 0); // 0711 default mask
ret = LE_CreateStreamServer(LE_GetDefaultLoop(), server, &info);
APPSPAWN_CHECK(ret == 0, return -1, "Failed to create socket for %{public}s errno: %{public}d", path, errno);
SetFdCtrl(LE_GetSocketFd(*server), FD_CLOEXEC);
APPSPAWN_LOGI("CreateAppSpawnServer path %{public}s fd %{public}d", path, LE_GetSocketFd(*server));
return 0;
}
void AppSpawnDestroyContent(AppSpawnContent *content)
{
if (content == NULL) {
return;
}
if (content->parentToChildFd[0] > 0) {
close(content->parentToChildFd[0]);
}
if (content->parentToChildFd[1] > 0) {
close(content->parentToChildFd[1]);
}
AppSpawnMgr *appSpawnContent = (AppSpawnMgr *)content;
#ifdef USE_ENCAPS
CloseDevEncaps(appSpawnContent->content.fdEncaps);
#endif
if (appSpawnContent->sigHandler != NULL && appSpawnContent->servicePid == getpid()) {
LE_CloseSignalTask(LE_GetDefaultLoop(), appSpawnContent->sigHandler);
}
if (appSpawnContent->server != NULL && appSpawnContent->servicePid == getpid()) { // childProcess can't deal socket
LE_CloseStreamTask(LE_GetDefaultLoop(), appSpawnContent->server);
appSpawnContent->server = NULL;
}
LE_StopLoop(LE_GetDefaultLoop());
LE_CloseLoop(LE_GetDefaultLoop());
DeleteAppSpawnMgr(appSpawnContent);
}
APPSPAWN_STATIC int AppSpawnColdStartApp(struct AppSpawnContent *content, AppSpawnClient *client)
{
AppSpawningCtx *property = (AppSpawningCtx *)client;
#ifdef CJAPP_SPAWN
char *path = property->forkCtx.coldRunPath != NULL ? property->forkCtx.coldRunPath : "/system/bin/cjappspawn";
#elif NATIVE_SPAWN
char *path = property->forkCtx.coldRunPath != NULL ? property->forkCtx.coldRunPath : "/system/bin/nativespawn";
#else
char *path = property->forkCtx.coldRunPath != NULL ? property->forkCtx.coldRunPath : "/system/bin/appspawn";
#endif
APPSPAWN_LOGI("ColdStartApp::processName: %{public}s path: %{public}s", GetProcessName(property), path);
// for cold run, use shared memory to exchange message
APPSPAWN_LOGV("Write msg to child %{public}s", GetProcessName(property));
int ret = WriteMsgToChild(property, IsNWebSpawnMode((AppSpawnMgr *)content));
APPSPAWN_CHECK(ret == 0, return APPSPAWN_SYSTEM_ERROR, "Failed to write msg to child");
char buffer[4][32] = {0}; // 4 32 buffer for fd
int len = sprintf_s(buffer[0], sizeof(buffer[0]), " %d ", property->forkCtx.fd[1]);
APPSPAWN_CHECK(len > 0, return APPSPAWN_SYSTEM_ERROR, "Invalid to format fd");
len = sprintf_s(buffer[1], sizeof(buffer[1]), " %u ", property->client.flags);
APPSPAWN_CHECK(len > 0, return APPSPAWN_SYSTEM_ERROR, "Invalid to format flags");
len = sprintf_s(buffer[2], sizeof(buffer[2]), " %d ", property->forkCtx.msgSize); // 2 2 index for dest path
APPSPAWN_CHECK(len > 0, return APPSPAWN_SYSTEM_ERROR, "Invalid to format shmId ");
len = sprintf_s(buffer[3], sizeof(buffer[3]), " %d ", property->client.id); // 3 3 index for client id
APPSPAWN_CHECK(len > 0, return APPSPAWN_SYSTEM_ERROR, "Invalid to format shmId ");
#ifndef APPSPAWN_TEST
char *mode = IsNWebSpawnMode((AppSpawnMgr *)content) ? "nweb_cold" : "app_cold";
// 2 2 index for dest path
const char *const formatCmds[] = {
path, "-mode", mode, "-fd", buffer[0], buffer[1], buffer[2],
"-param", GetProcessName(property), buffer[3], NULL
};
ret = execv(path, (char **)formatCmds);
if (ret != 0) {
APPSPAWN_LOGE("Failed to execv, errno: %{public}d", errno);
}
#endif
APPSPAWN_LOGV("ColdStartApp::processName: %{public}s end", GetProcessName(property));
return 0;
}
static AppSpawningCtx *GetAppSpawningCtxFromArg(AppSpawnMgr *content, int argc, char *const argv[])
{
AppSpawningCtx *property = CreateAppSpawningCtx();
APPSPAWN_CHECK(property != NULL, return NULL, "Create app spawning ctx fail");
property->forkCtx.fd[1] = atoi(argv[FD_VALUE_INDEX]);
property->client.flags = atoi(argv[FLAGS_VALUE_INDEX]);
property->client.flags &= ~APP_COLD_START;
int isNweb = IsNWebSpawnMode(content);
uint32_t size = atoi(argv[SHM_SIZE_INDEX]);
property->client.id = atoi(argv[CLIENT_ID_INDEX]);
uint8_t *buffer = (uint8_t *)GetMapMem(property->client.id,
argv[PARAM_VALUE_INDEX], size, true, isNweb);
if (buffer == NULL) {
APPSPAWN_LOGE("Failed to map errno %{public}d %{public}s", property->client.id, argv[PARAM_VALUE_INDEX]);
NotifyResToParent(&content->content, &property->client, APPSPAWN_SYSTEM_ERROR);
DeleteAppSpawningCtx(property);
return NULL;
}
uint32_t msgRecvLen = 0;
uint32_t remainLen = 0;
AppSpawnMsgNode *message = NULL;
int ret = GetAppSpawnMsgFromBuffer(buffer, ((AppSpawnMsg *)buffer)->msgLen, &message, &msgRecvLen, &remainLen);
// release map
munmap((char *)buffer, size);
//unlink
char path[PATH_MAX] = {0};
int len = sprintf_s(path, sizeof(path), APPSPAWN_MSG_DIR "%s/%s_%d",
isNweb ? "nwebspawn" : "appspawn", argv[PARAM_VALUE_INDEX], property->client.id);
if (len > 0) {
unlink(path);
}
if (ret == 0 && DecodeAppSpawnMsg(message) == 0 && CheckAppSpawnMsg(message) == 0) {
property->message = message;
message = NULL;
return property;
}
NotifyResToParent(&content->content, &property->client, APPSPAWN_MSG_INVALID);
DeleteAppSpawnMsg(message);
DeleteAppSpawningCtx(property);
return NULL;
}
static void AppSpawnColdRun(AppSpawnContent *content, int argc, char *const argv[])
{
APPSPAWN_CHECK(argc >= ARG_NULL, return, "Invalid arg for cold start %{public}d", argc);
AppSpawnMgr *appSpawnContent = (AppSpawnMgr *)content;
APPSPAWN_CHECK(appSpawnContent != NULL, return, "Invalid appspawn content");
AppSpawningCtx *property = GetAppSpawningCtxFromArg(appSpawnContent, argc, argv);
if (property == NULL) {
APPSPAWN_LOGE("Failed to get property from arg");
return;
}
if (IsDeveloperModeOn(property)) {
DumpAppSpawnMsg(property->message);
}
int ret = AppSpawnExecuteSpawningHook(content, &property->client);
if (ret == 0) {
ret = AppSpawnExecutePreReplyHook(content, &property->client);
// success
NotifyResToParent(content, &property->client, ret);
(void)AppSpawnExecutePostReplyHook(content, &property->client);
ret = APPSPAWN_SYSTEM_ERROR;
if (content->runChildProcessor != NULL) {
ret = content->runChildProcessor(content, &property->client);
}
} else {
NotifyResToParent(content, &property->client, ret);
}
if (ret != 0) {
AppSpawnEnvClear(content, &property->client);
}
APPSPAWN_LOGI("AppSpawnColdRun exit %{public}d.", getpid());
}
static void AppSpawnRun(AppSpawnContent *content, int argc, char *const argv[])
{
APPSPAWN_LOGI("AppSpawnRun");
AppSpawnMgr *appSpawnContent = (AppSpawnMgr *)content;
APPSPAWN_CHECK(appSpawnContent != NULL, return, "Invalid appspawn content");
LE_STATUS status = LE_CreateSignalTask(LE_GetDefaultLoop(), &appSpawnContent->sigHandler, ProcessSignal);
if (status == 0) {
(void)LE_AddSignal(LE_GetDefaultLoop(), appSpawnContent->sigHandler, SIGCHLD);
(void)LE_AddSignal(LE_GetDefaultLoop(), appSpawnContent->sigHandler, SIGTERM);
}
#ifdef USE_ENCAPS
appSpawnContent->content.fdEncaps = OpenDevEncaps();
#endif
LE_RunLoop(LE_GetDefaultLoop());
APPSPAWN_LOGI("AppSpawnRun exit mode: %{public}d ", content->mode);
(void)ServerStageHookExecute(STAGE_SERVER_EXIT, content); // service exit,plugin can deal task
AppSpawnDestroyContent(content);
}
APPSPAWN_STATIC int AppSpawnClearEnv(AppSpawnMgr *content, AppSpawningCtx *property)
{
APPSPAWN_CHECK(content != NULL, return 0, "Invalid appspawn content");
DeleteAppSpawningCtx(property);
AppSpawnDestroyContent(&content->content);
APPSPAWN_LOGV("clear %{public}d end", getpid());
return 0;
}
static int IsEnablePerfork()
{
char buffer[32] = {0};
int ret = GetParameter("persist.sys.prefork.enable", "true", buffer, sizeof(buffer));
APPSPAWN_LOGV("IsEnablePerfork result %{public}d, %{public}s", ret, buffer);
return strcmp(buffer, "true") == 0;
}
AppSpawnContent *AppSpawnCreateContent(const char *socketName, char *longProcName, uint32_t nameLen, int mode)
{
APPSPAWN_CHECK(socketName != NULL && longProcName != NULL, return NULL, "Invalid name");
APPSPAWN_LOGI("AppSpawnCreateContent %{public}s %{public}u mode %{public}d", socketName, nameLen, mode);
AppSpawnMgr *appSpawnContent = CreateAppSpawnMgr(mode);
APPSPAWN_CHECK(appSpawnContent != NULL, return NULL, "Failed to alloc memory for appspawn");
appSpawnContent->content.longProcName = longProcName;
appSpawnContent->content.longProcNameLen = nameLen;
appSpawnContent->content.notifyResToParent = NotifyResToParent;
if (IsColdRunMode(appSpawnContent)) {
appSpawnContent->content.runAppSpawn = AppSpawnColdRun;
} else {
appSpawnContent->content.runAppSpawn = AppSpawnRun;
appSpawnContent->content.coldStartApp = AppSpawnColdStartApp;
int ret = CreateAppSpawnServer(&appSpawnContent->server, socketName);
APPSPAWN_CHECK(ret == 0, AppSpawnDestroyContent(&appSpawnContent->content);
return NULL, "Failed to create server");
}
appSpawnContent->content.enablePerfork = IsEnablePerfork();
return &appSpawnContent->content;
}
AppSpawnContent *StartSpawnService(const AppSpawnStartArg *startArg, uint32_t argvSize, int argc, char *const argv[])
{
APPSPAWN_CHECK(startArg != NULL && argv != NULL, return NULL, "Invalid start arg");
pid_t pid = 0;
AppSpawnStartArg *arg = (AppSpawnStartArg *)startArg;
APPSPAWN_LOGV("Start appspawn argvSize %{public}d mode %{public}d service %{public}s",
argvSize, arg->mode, arg->serviceName);
if (arg->mode == MODE_FOR_APP_SPAWN) {
#ifndef APPSPAWN_TEST
pid = NWebSpawnLaunch();
if (pid == 0) {
arg->socketName = NWEBSPAWN_SOCKET_NAME;
arg->serviceName = NWEBSPAWN_SERVER_NAME;
arg->moduleType = MODULE_NWEBSPAWN;
arg->mode = MODE_FOR_NWEB_SPAWN;
arg->initArg = 1;
}
#endif
} else if (arg->mode == MODE_FOR_NWEB_SPAWN && getuid() == 0) {
NWebSpawnInit();
}
if (arg->initArg) {
int ret = memset_s(argv[0], argvSize, 0, (size_t)argvSize);
APPSPAWN_CHECK(ret == EOK, return NULL, "Failed to memset argv[0]");
ret = strncpy_s(argv[0], argvSize, arg->serviceName, strlen(arg->serviceName));
APPSPAWN_CHECK(ret == EOK, return NULL, "Failed to copy service name %{public}s", arg->serviceName);
}
// load module appspawn/common
AppSpawnLoadAutoRunModules(MODULE_COMMON);
AppSpawnModuleMgrInstall(ASAN_MODULE_PATH);
APPSPAWN_CHECK(LE_GetDefaultLoop() != NULL, return NULL, "Invalid default loop");
AppSpawnContent *content = AppSpawnCreateContent(arg->socketName, argv[0], argvSize, arg->mode);
APPSPAWN_CHECK(content != NULL, return NULL, "Failed to create content for %{public}s", arg->socketName);
AppSpawnLoadAutoRunModules(arg->moduleType); // load corresponding plugin according to startup mode
int ret = ServerStageHookExecute(STAGE_SERVER_PRELOAD, content); // Preload, prase the sandbox
APPSPAWN_CHECK(ret == 0, AppSpawnDestroyContent(content);
return NULL, "Failed to prepare load %{public}s result: %{public}d", arg->serviceName, ret);
#ifndef APPSPAWN_TEST
APPSPAWN_CHECK(content->runChildProcessor != NULL, AppSpawnDestroyContent(content);
return NULL, "No child processor %{public}s result: %{public}d", arg->serviceName, ret);
#endif
AddAppSpawnHook(STAGE_CHILD_PRE_RUN, HOOK_PRIO_LOWEST, AppSpawnClearEnv);
if (arg->mode == MODE_FOR_APP_SPAWN) {
AddSpawnedProcess(pid, NWEBSPAWN_SERVER_NAME);
SetParameter("bootevent.appspawn.started", "true");
}
return content;
}
static AppSpawnMsgNode *ProcessSpawnBegetctlMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
uint32_t len = 0;
const char *cmdMsg = (const char *)GetAppSpawnMsgExtInfo(message, MSG_EXT_NAME_BEGET_PID, &len);
APPSPAWN_CHECK(cmdMsg != NULL, return NULL, "Failed to get extInfo");
AppSpawnedProcess *appInfo = GetSpawnedProcess(atoi(cmdMsg));
APPSPAWN_CHECK(appInfo != NULL, return NULL, "Failed to get app info");
AppSpawnMsgNode *msgNode = RebuildAppSpawnMsgNode(message, appInfo);
APPSPAWN_CHECK(msgNode != NULL, return NULL, "Failed to rebuild app message node");
int ret = DecodeAppSpawnMsg(msgNode);
if (ret != 0) {
DeleteAppSpawnMsg(msgNode);
return NULL;
}
return msgNode;
}
static void ProcessBegetCmdMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
AppSpawnMsg *msg = &message->msgHeader;
if (!IsDeveloperModeOpen()) {
SendResponse(connection, msg, APPSPAWN_DEBUG_MODE_NOT_SUPPORT, 0);
DeleteAppSpawnMsg(message);
return;
}
AppSpawnMsgNode *msgNode = ProcessSpawnBegetctlMsg(connection, message);
if (msgNode == NULL) {
SendResponse(connection, msg, APPSPAWN_DEBUG_MODE_NOT_SUPPORT, 0);
DeleteAppSpawnMsg(message);
return;
}
ProcessSpawnReqMsg(connection, msgNode);
DeleteAppSpawnMsg(message);
DeleteAppSpawnMsg(msgNode);
}
static int GetArkWebInstallPath(const char *key, char *value)
{
int len = GetParameter(key, "", value, PATH_SIZE);
APPSPAWN_CHECK(len > 0, return -1, "Failed to get arkwebcore install path from param, len %{public}d", len);
for (int i = len - 1; i >= 0; i--) {
if (value[i] == '/') {
value[i] = '\0';
return i;
}
value[i] = '\0';
}
return -1;
}
static bool CheckAllDigit(char *userId)
{
for (int i = 0; userId[i] != '\0'; i++) {
if (!isdigit(userId[i])) {
return false;
}
}
return true;
}
#ifdef APPSPAWN_SANDBOX_NEW
static int ProcessSpawnRemountMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
char srcPath[PATH_SIZE] = {0};
int len = GetArkWebInstallPath("persist.arkwebcore.install_path", srcPath);
APPSPAWN_CHECK(len > 0, return -1, "Failed to get arkwebcore install path");
char *rootPath = "/mnt/sandbox";
DIR *rootDir = opendir(rootPath);
APPSPAWN_CHECK(rootDir != NULL, return -1, "Failed to opendir %{public}s, errno %{public}d", rootPath, errno);
struct dirent *ent;
while ((ent = readdir(rootDir)) != NULL) {
char *userId = ent->d_name;
if (strcmp(userId, ".") == 0 || strcmp(userId, "..") == 0 || !CheckAllDigit(userId)) {
continue;
}
char destPath[PATH_SIZE] = {0};
int ret = snprintf_s(destPath, sizeof(destPath), sizeof(destPath) - 1,
"%s/%s/app-root/mnt/nweb/tmp", rootPath, userId);
APPSPAWN_CHECK(ret > 0, continue, "Failed to snprintf_s, errno %{public}d", errno);
ret = umount2(destPath, MNT_DETACH);
if (ret != 0) {
APPSPAWN_LOGW("Umount %{public}s failed, errno %{public}d", destPath, errno);
}
ret = mount(srcPath, destPath, NULL, MS_BIND | MS_REC, NULL);
if (ret != 0 && errno == EBUSY) {
ret = mount(srcPath, destPath, NULL, MS_BIND | MS_REC, NULL);
APPSPAWN_LOGW("Bind mount again %{public}s to %{public}s, ret %{public}d", srcPath, destPath, ret);
}
APPSPAWN_CHECK(ret == 0, continue,
"Failed to bind mount %{public}s to %{public}s, errno %{public}d", srcPath, destPath, errno);
ret = mount(NULL, destPath, NULL, MS_SHARED, NULL);
APPSPAWN_CHECK(ret == 0, continue,
"Failed to shared mount %{public}s, errno %{public}d", destPath, errno);
APPSPAWN_LOGI("Remount %{public}s to %{public}s success", srcPath, destPath);
}
closedir(rootDir);
return 0;
}
#else
static int ProcessSpawnRemountMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
char srcPath[PATH_SIZE] = {0};
int len = GetArkWebInstallPath("persist.arkwebcore.install_path", srcPath);
APPSPAWN_CHECK(len > 0, return -1, "Failed to get arkwebcore install path");
char *rootPath = "/mnt/sandbox";
DIR *rootDir = opendir(rootPath);
APPSPAWN_CHECK(rootDir != NULL, return -1, "Failed to opendir %{public}s, errno %{public}d", rootPath, errno);
struct dirent *ent;
while ((ent = readdir(rootDir)) != NULL) {
char *userId = ent->d_name;
if (strcmp(userId, ".") == 0 || strcmp(userId, "..") == 0 || !CheckAllDigit(userId)) {
continue;
}
char userIdPath[PATH_SIZE] = {0};
int ret = snprintf_s(userIdPath, sizeof(userIdPath), sizeof(userIdPath) - 1, "%s/%s", rootPath, userId);
APPSPAWN_CHECK(ret > 0, continue, "Failed to snprintf_s, errno %{public}d", errno);
DIR *userIdDir = opendir(userIdPath);
APPSPAWN_CHECK(userIdDir != NULL, continue, "Failed to open %{public}s, errno %{public}d", userIdPath, errno);
while ((ent = readdir(userIdDir)) != NULL) {
char *bundleName = ent->d_name;
if (strcmp(bundleName, ".") == 0 || strcmp(bundleName, "..") == 0) {
continue;
}
char destPath[PATH_SIZE] = {0};
ret = snprintf_s(destPath, sizeof(destPath), sizeof(destPath) - 1,
"%s/%s/data/storage/el1/bundle/arkwebcore", userIdPath, bundleName);
APPSPAWN_CHECK(ret > 0, continue, "Failed to snprintf_s, errno %{public}d", errno);
umount2(destPath, MNT_DETACH);
ret = mount(srcPath, destPath, NULL, MS_BIND | MS_REC, NULL);
if (ret != 0 && errno == EBUSY) {
ret = mount(srcPath, destPath, NULL, MS_BIND | MS_REC, NULL);
APPSPAWN_LOGV("mount again %{public}s to %{public}s, ret %{public}d", srcPath, destPath, ret);
}
APPSPAWN_CHECK(ret == 0, continue,
"Failed to bind mount %{public}s to %{public}s, errno %{public}d", srcPath, destPath, errno);
ret = mount(NULL, destPath, NULL, MS_SHARED, NULL);
APPSPAWN_CHECK(ret == 0, continue,
"Failed to shared mount %{public}s to %{public}s, errno %{public}d", srcPath, destPath, errno);
APPSPAWN_LOGV("Remount %{public}s to %{public}s success", srcPath, destPath);
}
closedir(userIdDir);
}
closedir(rootDir);
return 0;
}
#endif
static void ProcessSpawnRestartMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
AppSpawnContent *content = GetAppSpawnContent();
if (!IsNWebSpawnMode((AppSpawnMgr *)content)) {
SendResponse(connection, &message->msgHeader, APPSPAWN_MSG_INVALID, 0);
DeleteAppSpawnMsg(message);
APPSPAWN_LOGE("Restart msg only support nwebspawn");
return;
}
TraversalSpawnedProcess(AppQueueDestroyProc, NULL);
SendResponse(connection, &message->msgHeader, 0, 0);
DeleteAppSpawnMsg(message);
(void) ServerStageHookExecute(STAGE_SERVER_EXIT, content);
errno = 0;
int fd = GetControlSocket(NWEBSPAWN_SOCKET_NAME);
APPSPAWN_CHECK(fd >= 0, return, "Get fd failed %{public}d, errno %{public}d", fd, errno);
int op = fcntl(fd, F_GETFD);
op &= ~FD_CLOEXEC;
int ret = fcntl(fd, F_SETFD, op);
if (ret < 0) {
APPSPAWN_LOGE("Set fd failed %{public}d, %{public}d, ret %{public}d, errno %{public}d", fd, op, ret, errno);
}
char *path = "/system/bin/appspawn";
char *mode = NWEBSPAWN_RESTART;
const char *const formatCmds[] = {path, "-mode", mode, NULL};
ret = execv(path, (char **)formatCmds);
APPSPAWN_LOGE("Failed to execv, ret %{public}d, errno %{public}d", ret, errno);
}
static void ProcessRecvMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
{
AppSpawnMsg *msg = &message->msgHeader;
APPSPAWN_LOGI("Recv message header magic 0x%{public}x type %{public}u id %{public}u len %{public}u %{public}s",
msg->magic, msg->msgType, msg->msgId, msg->msgLen, msg->processName);
APPSPAWN_CHECK_ONLY_LOG(connection->receiverCtx.nextMsgId == msg->msgId,
"Invalid msg id %{public}u %{public}u", connection->receiverCtx.nextMsgId, msg->msgId);
connection->receiverCtx.nextMsgId++;
int ret;
switch (msg->msgType) {
case MSG_GET_RENDER_TERMINATION_STATUS: { // get status
AppSpawnResult result = {0};
ret = ProcessTerminationStatusMsg(message, &result);
SendResponse(connection, msg, ret == 0 ? result.result : ret, result.pid);
DeleteAppSpawnMsg(message);
break;
}
case MSG_SPAWN_NATIVE_PROCESS: // spawn msg
case MSG_APP_SPAWN: {
ProcessSpawnReqMsg(connection, message);
break;
}
case MSG_DUMP:
ProcessAppSpawnDumpMsg(message);
SendResponse(connection, msg, 0, 0);
DeleteAppSpawnMsg(message);
break;
case MSG_BEGET_CMD: {
ProcessBegetCmdMsg(connection, message);
break;
}
case MSG_BEGET_SPAWNTIME:
SendResponse(connection, msg, GetAppSpawnMgr()->spawnTime.minAppspawnTime,
GetAppSpawnMgr()->spawnTime.maxAppspawnTime);
DeleteAppSpawnMsg(message);
break;
case MSG_UPDATE_MOUNT_POINTS:
ret = ProcessSpawnRemountMsg(connection, message);
SendResponse(connection, msg, ret, 0);
break;
case MSG_RESTART_SPAWNER:
ProcessSpawnRestartMsg(connection, message);
break;
default:
SendResponse(connection, msg, APPSPAWN_MSG_INVALID, 0);
DeleteAppSpawnMsg(message);
break;
}
}
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