openharmony标准系统移植之init启动流程分析
接上篇移植openharmony标准系统后,系统进入终端后,发现执行指令特别卡顿,太影响调试了。目前还不知道是什么问题导致的,不知道是不是cpu性能不够,但是感觉不太像是这个问题,卡顿如下图。基本一个操作需要卡半天。
为了解决下这个问题,也为了更熟悉openharmony代码启动流程。现在追踪下启动过程。记录如下。
首先可以知道的是openharmony系统启动后,执行的是init进程。可以查看源码目录下base/startup/init_lite/services/BUILD.gn文件,首先是不管小型还是标准系统都会参与编译的文件。
然后根据系统类型会选择编译不同的文件,我们是标准系统,那么我们具体编译的文件如下图所示。
很明显,我们找到了init的入口了,即为源码目录下的base/startup/init_lite/services/init/main.c文件,文件内容如下,
static const pid_t INIT_PROCESS_PID = 1;int main(int argc, char * const argv[]){ int isSecondStage = 0; // Number of command line parameters is 2 if (argc == 2 && (strcmp(argv[1], "--second-stage") == 0)) { //我们一般启动都是不带参数 isSecondStage = 1; } if (getpid() != INIT_PROCESS_PID) { //正常情况下init进程都为1 INIT_LOGE("Process id error %d!", getpid()); return 0; } if (isSecondStage == 0) { //前面说了,我们是没有参数,此值肯定为0, SystemPrepare(); } else { LogInit(); } SystemInit(); SystemExecuteRcs(); SystemConfig(); SystemRun(); return 0;}
所以具体执行的函数为如下顺序:
- SystemPrepare();
- SystemInit();
- SystemExecuteRcs();
- SystemConfig();
- SystemRun();
那么我们就需要展开查看这五个函数的执行过程了。
1.1 首先执行的是SystemPrepare()函数,我们查找的话,是有如下图地方的地方存在改函数。
而我们是标准系统,那么我们执行的函数肯定就是base/startup/init_lite/services/init/standard/init.c文件中的SystemPrepare()函数了。这边我们可以添加打印函数进行验证。
void SystemPrepare(void){ INIT_LOGI("base/startup/init_lite/services/init/standard/init.c"); //添加的打印测试 MountBasicFs(); LogInit(); // Make sure init log always output to /dev/kmsg. EnableDevKmsg(); CreateDeviceNode(); // Only ohos normal system support // two stages of init. // If we are in updater mode, only one stage of init, INIT_LOGI("DISABLE_INIT_TWO_STAGES not defined"); if (InUpdaterMode() == 0) { StartInitSecondStage(); }}
void MountBasicFs(void){ if (mount("tmpfs", "/dev", "tmpfs", MS_NOSUID, "mode=0755") != 0) { INIT_LOGE("Mount tmpfs failed. %s", strerror(errno)); } if (mount("tmpfs", "/mnt", "tmpfs", MS_NOSUID, "mode=0755") != 0) { INIT_LOGE("Mount tmpfs failed. %s", strerror(errno)); } if (mkdir("/dev/pts", S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0) { INIT_LOGE("mkdir /dev/pts failed. %s", strerror(errno)); } if (mount("devpts", "/dev/pts", "devpts", 0, NULL) != 0) { INIT_LOGE("Mount devpts failed. %s", strerror(errno)); } if (mount("proc", "/proc", "proc", 0, "hidepid=2") != 0) { INIT_LOGE("Mount procfs failed. %s", strerror(errno)); } if (mount("sysfs", "/sys", "sysfs", 0, NULL) != 0) { INIT_LOGE("Mount sysfs failed. %s", strerror(errno)); } if (mount("selinuxfs", "/sys/fs/selinux", "selinuxfs", 0, NULL) != 0) { INIT_LOGE("Mount selinuxfs failed. %s", strerror(errno)); }}其中mount函数说明如下:int mount( const char* source, const char* target, const char* filesystemtype, unsigned long mountflags, const void * data);source : 待挂载的文件系统,通常是一个设备名target : 挂载点filesystemtype : 文件系统的类型,例如:"ext2","ext3","msdos","proc","nfs4","iso9660"mountflags : 指定文件系统的读写访问标志.值通常如下 : MS_BIND : 执行bind挂载,使文件或者子目录树在文件系统内的另一个点上可视。MS_DIRSYNC : 同步目录的更新。MS_MANDLOCK : 允许在文件上执行强制锁。MS_MOVE : 移动子目录树。MS_NOATIME : 不要更新文件上的访问时间。MS_NODEV : 不允许访问设备文件。MS_NODIRATIME : 不允许更新目录上的访问时间。MS_NOEXEC : 不允许在挂上的文件系统上执行程序。MS_NOSUID : 执行程序时,不遵照set-user-ID 和 set-group-ID位。MS_RDONLY : 指定文件系统为只读。MS_REMOUNT : 重新加载文件系统。允许改变现存文件系统的mountflag和数据而无需先卸载再挂上文件系统MS_SYNCHRONOUS : 同步文件的更新。MNT_FORCE : 强制卸载,即使文件系统处于忙状态。MNT_EXPIRE : 将挂载点标志为过时。data : 文件系统特有的参数。函数成功执行时返回0。失败返回-1,errno被设为以下的某个值EACCES : 权能不足,可能原因是:路径的一部分不可搜索或者挂载只读的文件系统时,没有指定 MS_RDONLY 标志。EAGAIN : 成功地将不处于忙状态的文件系统标志为过时。EBUSY : 1.源文件系统已被挂上或者不可以以只读的方式重新挂载,因为它还拥有以写方式打开的文件。2.目标处于忙状态。EFAULT : 内存空间访问出错。EINVAL : 操作无效,可能是源文件系统超级块无效。ELOOP : 路径解析的过程中存在太多的符号连接。EMFILE : 无需块设备要求的情况下,无用设备表已满。ENAMETOOLONG : 路径名超出可允许的长度。ENODEV : 内核不支持某中文件系统。ENOENT : 路径名部分内容表示的目录不存在。ENOMEM : 核心内存不足。ENOTBLK : source不是块设备。ENOTDIR : 路径名的部分内容不是目录。EPERM : 调用者权能不足。ENXIO : 块主设备号超出所允许的范围。
然后执行LogInit函数,依然在base/startup/init_lite/services/init/standard/init.c文件中。
void LogInit(void){ CloseStdio(); int ret = mknod("/dev/kmsg", S_IFCHR | S_IWUSR | S_IRUSR, makedev(MEM_MAJOR, DEV_KMSG_MINOR)); if (ret == 0) { OpenLogDevice(); // base/startup/init_lite/services/log/init_log.c文件中,做了打开文件,获取设备描述符的操作。 }}
然后是函数CreateDeviceNode(),在文件base/startup/init_lite/services/init/standard/device.c中。
void CreateDeviceNode(void){ if (mknod("/dev/null", S_IFCHR | DEFAULT_RW_MODE, makedev(MEM_MAJOR, DEV_NULL_MINOR)) != 0) { INIT_LOGE("Create /dev/null device node failed. %s", strerror(errno)); } if (mknod("/dev/random", S_IFCHR | DEFAULT_RW_MODE, makedev(MEM_MAJOR, DEV_RANDOM_MINOR)) != 0) { INIT_LOGE("Create /dev/random device node failed. %s", strerror(errno)); } if (mknod("/dev/urandom", S_IFCHR | DEFAULT_RW_MODE, makedev(MEM_MAJOR, DEV_URANDOM_MINOR)) != 0) { INIT_LOGE("Create /dev/urandom device node failed. %s", strerror(errno)); }}
然后进行判断是不是在升级模式 ,函数为InUpdaterMode(),在base/startup/init_lite/services/utils/init_utils.c文件中,
int InUpdaterMode(void){ const char * const updaterExecutabeFile = "/bin/updater"; if (access(updaterExecutabeFile, X_OK) == 0) { //判断/bin/updater文件是否有执行权限,由于文件不存在,所以不可能为0,那么此函数的返回值为0. return 1; } else { return 0; }}access函数 : 确定文件或文件夹的访问权限。如果指定的存取方式有效,则函数返回0,否则函数返回-1。R_OK 只判断是否有读权限W_OK 只判断是否有写权限X_OK 判断是否有执行权限F_OK 只判断是否存在
然后执行StartInitSecondStage()函数,依然是在base/startup/init_lite/services/init/standard/init.c文件中
static void StartInitSecondStage(void){ const char *fstabFile = "/etc/fstab.required"; Fstab *fstab = NULL; if (access(fstabFile, F_OK) != 0) { //判断/etc/fstab.required文件是否存在 fstabFile = "/system/etc/fstab.required"; //如果不存在,则使用/system/etc/fstab.required文件 } //判断是否有/system/etc/fstab.required文件,不存在则报错。 INIT_ERROR_CHECK(access(fstabFile, F_OK) == 0, abort(), "Failed get fstab.required"); fstab = ReadFstabFromFile(fstabFile, false); //读取fstab.required文件的内容到fstab中,在base/startup/init_lite/interfaces/innerkits/fs_manager/fstab.c中实现 INIT_ERROR_CHECK(fstab != NULL, abort(), "Read fstab file \" %s \" failed\n", fstabFile); int requiredNum = 0; char **devices = GetRequiredDevices(*fstab, &requiredNum); if (devices != NULL && requiredNum > 0) { int ret = StartUeventd(devices, requiredNum); if (ret == 0) { ret = MountRequriedPartitions(fstab); } FreeStringVector(devices, requiredNum); devices = NULL; ReleaseFstab(fstab); fstab = NULL; if (ret < 0) { // If mount required partitions failure. // There is no necessary to continue. // Just abort INIT_LOGE("Mount requried partitions failed; please check fstab file"); // Execute sh for debugging execv("/bin/sh", NULL); abort(); } }#ifndef DISABLE_INIT_TWO_STAGES //这里因为我们关闭了ramdisk所以这里是有这个定义的,所以以下不执行//base/startup/init_lite/services/BUILD.gn中的/* if (!enable_ramdisk) { defines += [ "DISABLE_INIT_TWO_STAGES" ] }*/ SwitchRoot("/usr"); // Execute init second stage char * const args[] = { "/bin/init", "--second-stage", NULL, }; if (execv("/bin/init", args) != 0) { INIT_LOGE("Failed to exec \"/bin/init\", err = %d", errno); exit(-1); }#endif}
如果没有fstab.required文件,系统进入init后,会发生如下报错信息。
Freeing unused kernel memory: 1024KRun /init as init process[pid=1][INIT][INFO] [init.c:225)] DISABLE_INIT_TWO_STAGES not defined[pid=1][INIT][ERROR] [init.c:175)] Failed get fstab.requiredKernel panic - not syncing: Attempted to kill init! exitcode=0x00000004CPU: 1 PID: 1 Comm: init Not tainted 5.10.79 #1Hardware name: Generic DT based system[<c011105c>] (unwind_backtrace) from [<c010c770>] (show_stack+0x10/0x14)[<c010c770>] (show_stack) from [<c05d0a14>] (dump_stack+0x90/0xc4)[<c05d0a14>] (dump_stack) from [<c0120d78>] (panic+0x114/0x330)[<c0120d78>] (panic) from [<c0125f90>] (complete_and_exit+0x0/0x1c)[<c0125f90>] (complete_and_exit) from [<00000000>] (0x0)
如果有则会执行如下正确挂载的信息。
[ 7.169987] [pid=1][INIT][INFO] [init.c:227)] DISABLE_INIT_TWO_STAGES not defined[ 7.184059] [pid=1][INIT][ERROR] [ueventd.c:297)] Failed get default_boot_device value from cmdline[ 7.339797] [pid=1][INIT][INFO] [ueventd.c:144)] Handle block device partitionName rootfs[ 7.355829] [pid=1][INIT][INFO] [ueventd.c:134)] Match with /dev/block/platform/soc@3000000/4020000.sdmmc/by-name/rootfs for /devices/platform/soc@3000000/4020000.sdmmc/mmc_host/mmc0/mmc0:1234/block/mmcblk0[ 7.376373] [pid=1][INIT][INFO] [ueventd.c:140)] uevent->syspath /devices/platform/soc@3000000/4020000.sdmmc/mmc_host/mmc0/mmc0:1234/block/mmcblk0 not match deviceName /platform/soc@3000000/4020000.sdmmc/by-name/rootfs[ 7.406339] [pid=1][INIT][INFO] [ueventd.c:144)] Handle block device partitionName vendor[ 8.064424] [pid=1][INIT][INFO] [init_mount.c:24)] Mount required partitions[ 8.957499] BEGET[pid=1][INIT][INFO] [fstab_mount.c:331)] Mount /dev/block/platform/soc@3000000/4020000.sdmmc/by-name/rootfs to /usr successful[ 9.478341] EXT4-fs (mmcblk0p6): mounted filesystem without journal. Opts: barrier=1[ 9.487070] BEGET[pid=1][INIT][INFO] [fstab_mount.c:331)] Mount /dev/block/platform/soc@3000000/4020000.sdmmc/by-name/vendor to /vendor successful[ 9.501871] [pid=1][INIT][INFO] [init_hashmap.c:49)] Create hash map success 0[ 9.509974] LoopEvent[pid=1][INIT][INFO] [le_signal.c:76)] LE_AddSignal 17 0[ 9.517879] LoopEvent[pid=1][INIT][INFO] [le_signal.c:76)] LE_AddSignal 15 1[ 9.526092] [pid=1][INIT][INFO] [init.c:87)] Init fd holder socket done[ 9.533586] [pid=1][INIT][INFO] [init_hashmap.c:49)] Create hash map success 0[ 9.541677] [pid=1][INIT][INFO] [init_hashmap.c:49)] Create hash map success 0[ 9.549751] [pid=1][INIT][INFO] [init_hashmap.c:49)] Create hash map success 0[ 9.557826] [pid=1][INIT][INFO] [init_hashmap.c:49)] Create hash map success 0[ 9.565969] [pid=1][INIT][ERROR] [init_group_manager.c:189)] Failed to get boot group
所以再来回顾下SystemPrepare()函数,其实就是做一些准备工作。
void SystemPrepare(void){ MountBasicFs(); //挂载tmpfs,创建"/dev/pts",挂载devpts,proc,sysfs,selinuxfs LogInit(); //打开 "/dev/kmsg" 节点文件,获取设备描述符 EnableDevKmsg(); //打开proc/sys/kernel/printk_devkmsg节点,往里面写入 "on" CreateDeviceNode(); //创建 /dev/null,/dev/random,/dev/urandom节点文件 INIT_LOGI("DISABLE_INIT_TWO_STAGES not defined"); if (InUpdaterMode() == 0) { //这里我们返回的是0, StartInitSecondStage(); //这里主要的功能就是将我们fatab文件里面的语句去做解析并执行挂载操作 }}
接着分析SystemInit()函数,实现在base/startup/init_lite/services/init/standard/init.c中,具体函数内容如下.
void SystemInit(void){ SignalInit(); // umask call always succeeds and return the previous mask value which is not needed here (void)umask(DEFAULT_UMASK_INIT); MakeDirRecursive("/dev/unix/socket", S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH); //创建节点文件/dev/unix/socket int sock = FdHolderSockInit(); // if (sock >= 0) { RegisterFdHoldWatcher(sock); }}static int FdHolderSockInit(void){ int sock = -1; int on = 1; int fdHolderBufferSize = FD_HOLDER_BUFFER_SIZE; // 4KiB //创建一个本地通信的socket,sock 是创建成功的套接字 sock = socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); if (sock < 0) { INIT_LOGE("Failed to create fd holder socket, err = %d", errno); return -1; } setsockopt(sock, SOL_SOCKET, SO_RCVBUFFORCE, &fdHolderBufferSize, sizeof(fdHolderBufferSize)); //设置接收缓冲区 setsockopt(sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));//允许SCM_CREDENTIALS 控制消息的接收 if (access(INIT_HOLDER_SOCKET_PATH, F_OK) == 0) { //#define INIT_HOLDER_SOCKET_PATH "/dev/unix/socket/fd_holder" INIT_LOGI("%s exist, remove it", INIT_HOLDER_SOCKET_PATH); unlink(INIT_HOLDER_SOCKET_PATH); } struct sockaddr_un addr; addr.sun_family = AF_UNIX; if (strncpy_s(addr.sun_path, sizeof(addr.sun_path), INIT_HOLDER_SOCKET_PATH, strlen(INIT_HOLDER_SOCKET_PATH)) != 0) { INIT_LOGE("Faild to copy fd hoder socket path"); close(sock); return -1; } socklen_t len = (socklen_t)(offsetof(struct sockaddr_un, sun_path) + strlen(addr.sun_path) + 1); if (bind(sock, (struct sockaddr *)&addr, len) < 0) { INIT_LOGE("Failed to binder fd folder socket %d", errno); close(sock); return -1; } // Owned by root if (lchown(addr.sun_path, 0, 0)) { INIT_LOGW("Failed to change owner of fd holder socket, err = %d", errno); } mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH; if (fchmodat(AT_FDCWD, addr.sun_path, mode, AT_SYMLINK_NOFOLLOW)) { INIT_LOGW("Failed to change mode of fd holder socket, err = %d", errno); } INIT_LOGI("Init fd holder socket done"); return sock;}
接着分析SystemExecuteRcs(),在文件base/startup/init_lite/services/init/adapter/init_adapter.c中,具体函数内容如下
void SystemExecuteRcs(void){//通过查看 base/startup/init_lite/services/BUILD.gn可以发现只有小型系统并且是linux内核才会定义NEED_EXEC_RCS_LINUX,所以我们标准系统的话这里是不执行#if (defined __LINUX__) && (defined NEED_EXEC_RCS_LINUX) //这里 pid_t retPid = fork(); if (retPid < 0) { INIT_LOGE("ExecuteRcs, fork failed! err %d.", errno); return; } // child process if (retPid == 0) { INIT_LOGI("ExecuteRcs, child process id %d.", getpid()); if (execle("/bin/sh", "sh", "/etc/init.d/rcS", NULL, NULL) != 0) { INIT_LOGE("ExecuteRcs, execle failed! err %d.", errno); } _exit(0x7f); // 0x7f: user specified } // init process sem_t sem; if (sem_init(&sem, 0, 0) != 0) { INIT_LOGE("ExecuteRcs, sem_init failed, err %d.", errno); return; } SignalRegWaitSem(retPid, &sem); // wait until rcs process exited if (sem_wait(&sem) != 0) { INIT_LOGE("ExecuteRcs, sem_wait failed, err %d.", errno); }#endif}
然后是SystemConfig()函数,在base/startup/init_lite/services/init/standard/init.c中,可以看出内容还是有点多的。
void SystemConfig(void){ InitServiceSpace(); InitParseGroupCfg(); PluginManagerInit(); InitParamService(); RegisterBootStateChange(BootStateChange); // load SELinux context and policy // Do not move position! SystemLoadSelinux(); // parse parameters LoadDefaultParams("/system/etc/param/ohos_const", LOAD_PARAM_NORMAL); LoadDefaultParams("/vendor/etc/param", LOAD_PARAM_NORMAL); LoadDefaultParams("/system/etc/param", LOAD_PARAM_ONLY_ADD); // read config ReadConfig(); INIT_LOGI("Parse init config file done."); // dump config#if defined(OHOS_SERVICE_DUMP) AddCmdExecutor("display", SystemDump); (void)AddCompleteJob("param:ohos.servicectrl.display", "ohos.servicectrl.display=*", "display system");#endif // execute init PostTrigger(EVENT_TRIGGER_BOOT, "pre-init", strlen("pre-init")); PostTrigger(EVENT_TRIGGER_BOOT, "init", strlen("init")); PostTrigger(EVENT_TRIGGER_BOOT, "post-init", strlen("post-init"));}
void InitServiceSpace(void){ if (g_initWorkspace.initFlags != 0) { return; } HashInfo info = { GroupNodeNodeCompare, //这里为函数指针,info中的nodeCompare=GroupNodeNodeCompare函数 GroupNodeKeyCompare, //keyCompare = GroupNodeKeyCompare GroupNodeGetNodeHashCode,//nodeHash = GroupNodeGetNodeHashCode GroupNodeGetKeyHashCode, //keyHash = GroupNodeGetKeyHashCode GroupNodeFree, //nodeFree = GroupNodeFree GROUP_HASHMAP_BUCKET //maxBucket = GROUP_HASHMAP_BUCKET #define GROUP_HASHMAP_BUCKET 32 }; for (size_t i = 0; i < ARRAY_LENGTH(g_initWorkspace.hashMap); i++) { int ret = HashMapCreate(&g_initWorkspace.hashMap[i], &info); //将info给hashMap if (ret != 0) { INIT_LOGE("%s", "Failed to create hash map"); } } for (int i = 0; i < NODE_TYPE_MAX; i++) { g_initWorkspace.groupNodes[i] = NULL; } // get boot mode char *data = ReadFileData(BOOT_CMD_LINE);//#define BOOT_CMD_LINE "/proc/cmdline" if (data != NULL) { int ret = GetProcCmdlineValue(BOOT_GROUP_NAME, data, //#define BOOT_GROUP_NAME "bootgroup" g_initWorkspace.groupModeStr, sizeof(g_initWorkspace.groupModeStr)); if (ret != 0) { INIT_LOGE("%s", "Failed to get boot group"); //我们这里会打印这个,因为我们的cmdline值为: earlycon=uart8250,mmio32,0x05000000 clk_ignore_unused initcall_debug=0 console=ttyS0,115200 loglevel=8 root=/dev/mmcblk0p5 rw init=/init partitions=boot-resource@mmcblk0p1:env@mmcblk0p2:env-redund@mmcblk0p3:boot@mmcblk0p4:rootfs@mmcblk0p5:vendor@mmcblk0p6:userdata@mmcblk0p7:dsp0@mmcblk0p8:private@mmcblk0p9:UDISK@mmcblk0p10 cma=16M snum= mac_addr= wifi_mac= bt_mac= specialstr= gpt=1 androidboot.hardware=sun8iw20p1 boot_type=1 androidboot.boot_type=1 gpt=1 uboot_message=2018.05(04/26/2022-01:24:39) disp_reserve=2457600,0x448ee000 androidboot.dramsize=128#ifdef INIT_TEST //这里在base/startup/init_lite/begetd.gni中定义为true,所以我们执行这里 if (GetBootModeFromMisc() == GROUP_CHARING) { //这里我们没有misc strcpy_s(g_initWorkspace.groupModeStr, sizeof(g_initWorkspace.groupModeStr), "device.charing.group"); } else { strcpy_s(g_initWorkspace.groupModeStr, sizeof(g_initWorkspace.groupModeStr), BOOT_GROUP_DEFAULT); // #define BOOT_GROUP_DEFAULT "device.boot.group" }#else strcpy_s(g_initWorkspace.groupModeStr, sizeof(g_initWorkspace.groupModeStr), BOOT_GROUP_DEFAULT);#endif } free(data); } INIT_LOGI("boot start %s", g_initWorkspace.groupModeStr); //boot start device.boot.group g_initWorkspace.groupMode = GetBootGroupMode(); //这里等于0 /* static int GetBootGroupMode(void){ static const char *groupModes[] = { "device.boot.group", "device.charing.group" }; for (size_t i = 0; i < ARRAY_LENGTH(groupModes); i++) { if (strcmp(g_initWorkspace.groupModeStr, groupModes[i]) == 0) { return i; } } return (int)GROUP_UNKNOW;} */ g_initWorkspace.initFlags = 1;}
然后是函数InitParseGroupCfg(),
int InitParseGroupCfg(void){ char buffer[128] = {0}; // 128 buffer size char *realPath = GetAbsolutePath(GROUP_DEFAULT_PATH, // #define GROUP_DEFAULT_PATH "/system/etc" g_initWorkspace.groupModeStr, buffer, sizeof(buffer)); INIT_ERROR_CHECK(realPath != NULL, return -1, "Failed to get path for %s", g_initWorkspace.groupModeStr); InitParseGroupCfg_(realPath); InitGroupNode *groupRoot = g_initWorkspace.groupNodes[NODE_TYPE_GROUPS]; int level = 0; while ((groupRoot != NULL) && (level < GROUP_IMPORT_MAX_LEVEL)) { // for more import g_initWorkspace.groupNodes[NODE_TYPE_GROUPS] = NULL; InitImportGroupCfg_(groupRoot); groupRoot = g_initWorkspace.groupNodes[NODE_TYPE_GROUPS]; level++; } InitFreeGroupNodes_(g_initWorkspace.groupNodes[NODE_TYPE_GROUPS]); g_initWorkspace.groupNodes[NODE_TYPE_GROUPS] = NULL; return 0;}
void InitParamService(void){ PARAM_LOGI("InitParamService pipe: %s.", PIPE_NAME); CheckAndCreateDir(PIPE_NAME); int ret = InitParamWorkSpace(&g_paramWorkSpace, 0); PARAM_CHECK(ret == 0, return, "Init parameter workspace fail"); ret = InitPersistParamWorkSpace(&g_paramWorkSpace); PARAM_CHECK(ret == 0, return, "Init persist parameter workspace fail"); if (g_paramWorkSpace.serverTask == NULL) { ParamStreamInfo info = {}; info.server = PIPE_NAME; info.close = NULL; info.recvMessage = NULL; info.incomingConnect = OnIncomingConnect; ret = ParamServerCreate(&g_paramWorkSpace.serverTask, &info); PARAM_CHECK(ret == 0, return, "Failed to create server"); } ret = InitTriggerWorkSpace(); PARAM_CHECK(ret == 0, return, "Failed to init trigger"); RegisterTriggerExec(TRIGGER_PARAM_WAIT, ExecuteWatchTrigger_); RegisterTriggerExec(TRIGGER_PARAM_WATCH, ExecuteWatchTrigger_); ParamAuditData auditData = {}; auditData.name = "#"; auditData.label = NULL; auditData.dacData.gid = getegid(); auditData.dacData.uid = geteuid(); auditData.dacData.mode = DAC_ALL_PERMISSION; ret = AddSecurityLabel(&auditData, (void *)&g_paramWorkSpace); PARAM_CHECK(ret == 0, return, "Failed to add default dac label"); // 读取cmdline的参数 LoadParamFromCmdLine();}