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hadoop/hadoop-common-project/hadoop-common/src/main/winutils/task.c

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/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to you 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 "winutils.h"
#include <errno.h>
#include <psapi.h>
#include <malloc.h>
#include <authz.h>
#include <sddl.h>
#define PSAPI_VERSION 1
#pragma comment(lib, "psapi.lib")
#define NM_WSCE_IMPERSONATE_ALLOWED L"yarn.nodemanager.windows-secure-container-executor.impersonate.allowed"
#define NM_WSCE_IMPERSONATE_DENIED L"yarn.nodemanager.windows-secure-container-executor.impersonate.denied"
// The S4U impersonation access check mask. Arbitrary value (we use 1 for the service access check)
#define SERVICE_IMPERSONATE_MASK 0x00000002
// Name for tracking this logon process when registering with LSA
static const char *LOGON_PROCESS_NAME="Hadoop Container Executor";
// Name for token source, must be less or eq to TOKEN_SOURCE_LENGTH (currently 8) chars
static const char *TOKEN_SOURCE_NAME = "HadoopEx";
// List of different task related command line options supported by
// winutils.
typedef enum TaskCommandOptionType
{
TaskInvalid,
TaskCreate,
TaskCreateAsUser,
TaskIsAlive,
TaskKill,
TaskProcessList
} TaskCommandOption;
//----------------------------------------------------------------------------
// Function: ParseCommandLine
//
// Description:
// Parses the given command line. On success, out param 'command' contains
// the user specified command.
//
// Returns:
// TRUE: If the command line is valid
// FALSE: otherwise
static BOOL ParseCommandLine(__in int argc,
__in_ecount(argc) wchar_t *argv[],
__out TaskCommandOption *command)
{
*command = TaskInvalid;
if (wcscmp(argv[0], L"task") != 0 )
{
return FALSE;
}
if (argc == 3) {
if (wcscmp(argv[1], L"isAlive") == 0)
{
*command = TaskIsAlive;
return TRUE;
}
if (wcscmp(argv[1], L"kill") == 0)
{
*command = TaskKill;
return TRUE;
}
if (wcscmp(argv[1], L"processList") == 0)
{
*command = TaskProcessList;
return TRUE;
}
}
if (argc == 4) {
if (wcscmp(argv[1], L"create") == 0)
{
*command = TaskCreate;
return TRUE;
}
}
if (argc >= 6) {
if (wcscmp(argv[1], L"createAsUser") == 0)
{
*command = TaskCreateAsUser;
return TRUE;
}
}
return FALSE;
}
//----------------------------------------------------------------------------
// Function: BuildImpersonateSecurityDescriptor
//
// Description:
// Builds the security descriptor for the S4U impersonation permissions
// This describes what users can be impersonated and what not
//
// Returns:
// ERROR_SUCCESS: On success
// GetLastError: otherwise
//
DWORD BuildImpersonateSecurityDescriptor(__out PSECURITY_DESCRIPTOR* ppSD) {
DWORD dwError = ERROR_SUCCESS;
size_t countAllowed = 0;
PSID* allowedSids = NULL;
size_t countDenied = 0;
PSID* deniedSids = NULL;
LPCWSTR value = NULL;
WCHAR** tokens = NULL;
size_t len = 0;
size_t count = 0;
int crt = 0;
PSECURITY_DESCRIPTOR pSD = NULL;
dwError = GetConfigValue(wsceConfigRelativePath, NM_WSCE_IMPERSONATE_ALLOWED, &len, &value);
if (dwError) {
ReportErrorCode(L"GetConfigValue:1", dwError);
goto done;
}
if (0 == len) {
dwError = ERROR_BAD_CONFIGURATION;
ReportErrorCode(L"GetConfigValue:2", dwError);
goto done;
}
dwError = SplitStringIgnoreSpaceW(len, value, L',', &count, &tokens);
if (dwError) {
ReportErrorCode(L"SplitStringIgnoreSpaceW:1", dwError);
goto done;
}
allowedSids = LocalAlloc(LPTR, sizeof(PSID) * count);
if (NULL == allowedSids) {
dwError = GetLastError();
ReportErrorCode(L"LocalAlloc:1", dwError);
goto done;
}
for(crt = 0; crt < count; ++crt) {
dwError = GetSidFromAcctNameW(tokens[crt], &allowedSids[crt]);
if (dwError) {
ReportErrorCode(L"GetSidFromAcctNameW:1", dwError);
goto done;
}
}
countAllowed = count;
LocalFree(tokens);
tokens = NULL;
LocalFree(value);
value = NULL;
dwError = GetConfigValue(wsceConfigRelativePath, NM_WSCE_IMPERSONATE_DENIED, &len, &value);
if (dwError) {
ReportErrorCode(L"GetConfigValue:3", dwError);
goto done;
}
if (0 != len) {
dwError = SplitStringIgnoreSpaceW(len, value, L',', &count, &tokens);
if (dwError) {
ReportErrorCode(L"SplitStringIgnoreSpaceW:2", dwError);
goto done;
}
deniedSids = LocalAlloc(LPTR, sizeof(PSID) * count);
if (NULL == allowedSids) {
dwError = GetLastError();
ReportErrorCode(L"LocalAlloc:2", dwError);
goto done;
}
for(crt = 0; crt < count; ++crt) {
dwError = GetSidFromAcctNameW(tokens[crt], &deniedSids[crt]);
if (dwError) {
ReportErrorCode(L"GetSidFromAcctNameW:2", dwError);
goto done;
}
}
countDenied = count;
}
dwError = BuildServiceSecurityDescriptor(
SERVICE_IMPERSONATE_MASK,
countAllowed, allowedSids,
countDenied, deniedSids,
NULL,
&pSD);
if (dwError) {
ReportErrorCode(L"BuildServiceSecurityDescriptor", dwError);
goto done;
}
*ppSD = pSD;
pSD = NULL;
done:
if (pSD) LocalFree(pSD);
if (tokens) LocalFree(tokens);
if (allowedSids) LocalFree(allowedSids);
if (deniedSids) LocalFree(deniedSids);
return dwError;
}
//----------------------------------------------------------------------------
// Function: AddNodeManagerAndUserACEsToObject
//
// Description:
// Adds ACEs to grant NM and user the provided access mask over a given handle
//
// Returns:
// ERROR_SUCCESS: on success
//
DWORD AddNodeManagerAndUserACEsToObject(
__in HANDLE hObject,
__in LPWSTR user,
__in ACCESS_MASK accessMask) {
DWORD dwError = ERROR_SUCCESS;
int countTokens = 0;
size_t len = 0;
LPCWSTR value = NULL;
WCHAR** tokens = NULL;
int crt = 0;
PACL pDacl = NULL;
PSECURITY_DESCRIPTOR psdProcess = NULL;
LPSTR lpszOldDacl = NULL, lpszNewDacl = NULL;
ULONG daclLen = 0;
PACL pNewDacl = NULL;
ACL_SIZE_INFORMATION si;
DWORD dwNewAclSize = 0;
PACE_HEADER pTempAce = NULL;
BYTE sidTemp[SECURITY_MAX_SID_SIZE];
DWORD cbSid = SECURITY_MAX_SID_SIZE;
PSID tokenSid = NULL;
// These hard-coded SIDs are allways added
WELL_KNOWN_SID_TYPE forcesSidTypes[] = {
WinLocalSystemSid,
WinBuiltinAdministratorsSid};
BOOL logSDs = IsDebuggerPresent(); // Check only once to avoid attach-while-running
dwError = GetSecurityInfo(hObject,
SE_KERNEL_OBJECT,
DACL_SECURITY_INFORMATION,
NULL,
NULL,
&pDacl,
NULL,
&psdProcess);
if (dwError) {
ReportErrorCode(L"GetSecurityInfo", dwError);
goto done;
}
// This is debug only output for troubleshooting
if (logSDs) {
if (!ConvertSecurityDescriptorToStringSecurityDescriptor(
psdProcess,
SDDL_REVISION_1,
DACL_SECURITY_INFORMATION,
&lpszOldDacl,
&daclLen)) {
dwError = GetLastError();
ReportErrorCode(L"ConvertSecurityDescriptorToStringSecurityDescriptor", dwError);
goto done;
}
}
ZeroMemory(&si, sizeof(si));
if (!GetAclInformation(pDacl, &si, sizeof(si), AclSizeInformation)) {
dwError = GetLastError();
ReportErrorCode(L"GetAclInformation", dwError);
goto done;
}
dwError = GetConfigValue(wsceConfigRelativePath, NM_WSCE_ALLOWED, &len, &value);
if (ERROR_SUCCESS != dwError) {
ReportErrorCode(L"GetConfigValue", dwError);
goto done;
}
if (0 == len) {
dwError = ERROR_BAD_CONFIGURATION;
ReportErrorCode(L"GetConfigValue", dwError);
goto done;
}
dwError = SplitStringIgnoreSpaceW(len, value, L',', &countTokens, &tokens);
if (ERROR_SUCCESS != dwError) {
ReportErrorCode(L"SplitStringIgnoreSpaceW", dwError);
goto done;
}
// We're gonna add 1 ACE for each token found, +1 for user and +1 for each forcesSidTypes[]
// ACCESS_ALLOWED_ACE struct contains the first DWORD of the SID
//
dwNewAclSize = si.AclBytesInUse +
(countTokens + 1 + sizeof(forcesSidTypes)/sizeof(forcesSidTypes[0])) *
(sizeof(ACCESS_ALLOWED_ACE) + SECURITY_MAX_SID_SIZE - sizeof(DWORD));
pNewDacl = (PSID) LocalAlloc(LPTR, dwNewAclSize);
if (!pNewDacl) {
dwError = ERROR_OUTOFMEMORY;
ReportErrorCode(L"LocalAlloc", dwError);
goto done;
}
if (!InitializeAcl(pNewDacl, dwNewAclSize, ACL_REVISION)) {
dwError = ERROR_OUTOFMEMORY;
ReportErrorCode(L"InitializeAcl", dwError);
goto done;
}
// Copy over old ACEs
for (crt = 0; crt < si.AceCount; ++crt) {
if (!GetAce(pDacl, crt, &pTempAce)) {
dwError = ERROR_OUTOFMEMORY;
ReportErrorCode(L"InitializeAcl", dwError);
goto done;
}
if (!AddAce(pNewDacl, ACL_REVISION, MAXDWORD, pTempAce, pTempAce->AceSize)) {
dwError = ERROR_OUTOFMEMORY;
ReportErrorCode(L"InitializeAcl", dwError);
goto done;
}
}
// Add the configured allowed SIDs
for (crt = 0; crt < countTokens; ++crt) {
dwError = GetSidFromAcctNameW(tokens[crt], &tokenSid);
if (ERROR_SUCCESS != dwError) {
ReportErrorCode(L"GetSidFromAcctNameW", dwError);
goto done;
}
if (!AddAccessAllowedAceEx(
pNewDacl,
ACL_REVISION_DS,
CONTAINER_INHERIT_ACE | OBJECT_INHERIT_ACE,
PROCESS_ALL_ACCESS,
tokenSid)) {
dwError = GetLastError();
ReportErrorCode(L"AddAccessAllowedAceEx:1", dwError);
goto done;
}
LocalFree(tokenSid);
tokenSid = NULL;
}
// add the forced SIDs ACE
for (crt = 0; crt < sizeof(forcesSidTypes)/sizeof(forcesSidTypes[0]); ++crt) {
cbSid = SECURITY_MAX_SID_SIZE;
if (!CreateWellKnownSid(forcesSidTypes[crt], NULL, &sidTemp, &cbSid)) {
dwError = GetLastError();
ReportErrorCode(L"CreateWellKnownSid", dwError);
goto done;
}
if (!AddAccessAllowedAceEx(
pNewDacl,
ACL_REVISION_DS,
CONTAINER_INHERIT_ACE | OBJECT_INHERIT_ACE,
accessMask,
(PSID) sidTemp)) {
dwError = GetLastError();
ReportErrorCode(L"AddAccessAllowedAceEx:2", dwError);
goto done;
}
}
// add the user ACE
dwError = GetSidFromAcctNameW(user, &tokenSid);
if (ERROR_SUCCESS != dwError) {
ReportErrorCode(L"GetSidFromAcctNameW:user", dwError);
goto done;
}
if (!AddAccessAllowedAceEx(
pNewDacl,
ACL_REVISION_DS,
CONTAINER_INHERIT_ACE | OBJECT_INHERIT_ACE,
PROCESS_ALL_ACCESS,
tokenSid)) {
dwError = GetLastError();
ReportErrorCode(L"AddAccessAllowedAceEx:3", dwError);
goto done;
}
LocalFree(tokenSid);
tokenSid = NULL;
dwError = SetSecurityInfo(hObject,
SE_KERNEL_OBJECT,
DACL_SECURITY_INFORMATION,
NULL,
NULL,
pNewDacl,
NULL);
if (dwError) {
ReportErrorCode(L"SetSecurityInfo", dwError);
goto done;
}
// This is debug only output for troubleshooting
if (logSDs) {
dwError = GetSecurityInfo(hObject,
SE_KERNEL_OBJECT,
DACL_SECURITY_INFORMATION,
NULL,
NULL,
&pDacl,
NULL,
&psdProcess);
if (dwError) {
ReportErrorCode(L"GetSecurityInfo:2", dwError);
goto done;
}
if (!ConvertSecurityDescriptorToStringSecurityDescriptor(
psdProcess,
SDDL_REVISION_1,
DACL_SECURITY_INFORMATION,
&lpszNewDacl,
&daclLen)) {
dwError = GetLastError();
ReportErrorCode(L"ConvertSecurityDescriptorToStringSecurityDescriptor:2", dwError);
goto done;
}
LogDebugMessage(L"Old DACL: %s\nNew DACL: %s\n", lpszOldDacl, lpszNewDacl);
}
done:
if (tokenSid) LocalFree(tokenSid);
if (pNewDacl) LocalFree(pNewDacl);
if (lpszOldDacl) LocalFree(lpszOldDacl);
if (lpszNewDacl) LocalFree(lpszNewDacl);
if (psdProcess) LocalFree(psdProcess);
return dwError;
}
//----------------------------------------------------------------------------
// Function: ValidateImpersonateAccessCheck
//
// Description:
// Performs the access check for S4U impersonation
//
// Returns:
// ERROR_SUCCESS: On success
// ERROR_ACCESS_DENIED, GetLastError: otherwise
//
DWORD ValidateImpersonateAccessCheck(__in HANDLE logonHandle) {
DWORD dwError = ERROR_SUCCESS;
PSECURITY_DESCRIPTOR pSD = NULL;
LUID luidUnused;
AUTHZ_ACCESS_REQUEST request;
AUTHZ_ACCESS_REPLY reply;
DWORD authError = ERROR_SUCCESS;
DWORD saclResult = 0;
ACCESS_MASK grantedMask = 0;
AUTHZ_RESOURCE_MANAGER_HANDLE hManager = NULL;
AUTHZ_CLIENT_CONTEXT_HANDLE hAuthzToken = NULL;
ZeroMemory(&luidUnused, sizeof(luidUnused));
ZeroMemory(&request, sizeof(request));
ZeroMemory(&reply, sizeof(reply));
dwError = BuildImpersonateSecurityDescriptor(&pSD);
if (dwError) {
ReportErrorCode(L"BuildImpersonateSecurityDescriptor", dwError);
goto done;
}
request.DesiredAccess = MAXIMUM_ALLOWED;
reply.Error = &authError;
reply.SaclEvaluationResults = &saclResult;
reply.ResultListLength = 1;
reply.GrantedAccessMask = &grantedMask;
if (!AuthzInitializeResourceManager(
AUTHZ_RM_FLAG_NO_AUDIT,
NULL, // pfnAccessCheck
NULL, // pfnComputeDynamicGroups
NULL, // pfnFreeDynamicGroups
NULL, // szResourceManagerName
&hManager)) {
dwError = GetLastError();
ReportErrorCode(L"AuthzInitializeResourceManager", dwError);
goto done;
}
if (!AuthzInitializeContextFromToken(
0,
logonHandle,
hManager,
NULL, // expiration time
luidUnused, // not used
NULL, // callback args
&hAuthzToken)) {
dwError = GetLastError();
ReportErrorCode(L"AuthzInitializeContextFromToken", dwError);
goto done;
}
if (!AuthzAccessCheck(
0,
hAuthzToken,
&request,
NULL, // AuditEvent
pSD,
NULL, // OptionalSecurityDescriptorArray
0, // OptionalSecurityDescriptorCount
&reply,
NULL // phAccessCheckResults
)) {
dwError = GetLastError();
ReportErrorCode(L"AuthzAccessCheck", dwError);
goto done;
}
LogDebugMessage(L"AutzAccessCheck: Error:%d sacl:%d access:%d\n",
authError, saclResult, grantedMask);
if (authError != ERROR_SUCCESS) {
ReportErrorCode(L"AuthzAccessCheck:REPLY:1", authError);
dwError = authError;
}
else if (!(grantedMask & SERVICE_IMPERSONATE_MASK)) {
ReportErrorCode(L"AuthzAccessCheck:REPLY:2", ERROR_ACCESS_DENIED);
dwError = ERROR_ACCESS_DENIED;
}
done:
if (hAuthzToken) AuthzFreeContext(hAuthzToken);
if (hManager) AuthzFreeResourceManager(hManager);
if (pSD) LocalFree(pSD);
return dwError;
}
//----------------------------------------------------------------------------
// Function: CreateTaskImpl
//
// Description:
// Creates a task via a jobobject. Outputs the
// appropriate information to stdout on success, or stderr on failure.
// logonHandle may be NULL, in this case the current logon will be utilized for the
// created process
//
// Returns:
// ERROR_SUCCESS: On success
// GetLastError: otherwise
DWORD CreateTaskImpl(__in_opt HANDLE logonHandle, __in PCWSTR jobObjName,__in PCWSTR cmdLine,
__in LPCWSTR userName)
{
DWORD dwErrorCode = ERROR_SUCCESS;
DWORD exitCode = EXIT_FAILURE;
DWORD currDirCnt = 0;
STARTUPINFO si;
PROCESS_INFORMATION pi;
HANDLE jobObject = NULL;
JOBOBJECT_EXTENDED_LIMIT_INFORMATION jeli = { 0 };
void * envBlock = NULL;
WCHAR secureJobNameBuffer[MAX_PATH];
LPCWSTR secureJobName = jobObjName;
wchar_t* curr_dir = NULL;
FILE *stream = NULL;
if (NULL != logonHandle) {
dwErrorCode = ValidateImpersonateAccessCheck(logonHandle);
if (dwErrorCode) {
ReportErrorCode(L"ValidateImpersonateAccessCheck", dwErrorCode);
return dwErrorCode;
}
dwErrorCode = GetSecureJobObjectName(jobObjName, MAX_PATH, secureJobNameBuffer);
if (dwErrorCode) {
ReportErrorCode(L"GetSecureJobObjectName", dwErrorCode);
return dwErrorCode;
}
secureJobName = secureJobNameBuffer;
}
// Create un-inheritable job object handle and set job object to terminate
// when last handle is closed. So winutils.exe invocation has the only open
// job object handle. Exit of winutils.exe ensures termination of job object.
// Either a clean exit of winutils or crash or external termination.
jobObject = CreateJobObject(NULL, secureJobName);
dwErrorCode = GetLastError();
if(jobObject == NULL || dwErrorCode == ERROR_ALREADY_EXISTS)
{
ReportErrorCode(L"CreateJobObject", dwErrorCode);
return dwErrorCode;
}
jeli.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE;
if(SetInformationJobObject(jobObject,
JobObjectExtendedLimitInformation,
&jeli,
sizeof(jeli)) == 0)
{
dwErrorCode = GetLastError();
ReportErrorCode(L"SetInformationJobObject", dwErrorCode);
CloseHandle(jobObject);
return dwErrorCode;
}
dwErrorCode = AddNodeManagerAndUserACEsToObject(jobObject, userName, JOB_OBJECT_ALL_ACCESS);
if (dwErrorCode) {
ReportErrorCode(L"AddNodeManagerAndUserACEsToObject", dwErrorCode);
CloseHandle(jobObject);
return dwErrorCode;
}
if(AssignProcessToJobObject(jobObject, GetCurrentProcess()) == 0)
{
dwErrorCode = GetLastError();
ReportErrorCode(L"AssignProcessToJobObject", dwErrorCode);
CloseHandle(jobObject);
return dwErrorCode;
}
// the child JVM uses this env var to send the task OS process identifier
// to the TaskTracker. We pass the job object name.
if(SetEnvironmentVariable(L"JVM_PID", jobObjName) == 0)
{
dwErrorCode = GetLastError();
ReportErrorCode(L"SetEnvironmentVariable", dwErrorCode);
// We have to explictly Terminate, passing in the error code
// simply closing the job would kill our own process with success exit status
TerminateJobObject(jobObject, dwErrorCode);
return dwErrorCode;
}
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
if( logonHandle != NULL ) {
// create user environment for this logon
if(!CreateEnvironmentBlock(&envBlock,
logonHandle,
TRUE )) {
dwErrorCode = GetLastError();
ReportErrorCode(L"CreateEnvironmentBlock", dwErrorCode);
// We have to explictly Terminate, passing in the error code
// simply closing the job would kill our own process with success exit status
TerminateJobObject(jobObject, dwErrorCode);
return dwErrorCode;
}
}
// Get the required buffer size first
currDirCnt = GetCurrentDirectory(0, NULL);
if (0 < currDirCnt) {
curr_dir = (wchar_t*) alloca(currDirCnt * sizeof(wchar_t));
assert(curr_dir);
currDirCnt = GetCurrentDirectory(currDirCnt, curr_dir);
}
if (0 == currDirCnt) {
dwErrorCode = GetLastError();
ReportErrorCode(L"GetCurrentDirectory", dwErrorCode);
// We have to explictly Terminate, passing in the error code
// simply closing the job would kill our own process with success exit status
TerminateJobObject(jobObject, dwErrorCode);
return dwErrorCode;
}
dwErrorCode = ERROR_SUCCESS;
if (logonHandle == NULL) {
if (!CreateProcess(
NULL, // ApplicationName
cmdLine, // command line
NULL, // process security attributes
NULL, // thread security attributes
TRUE, // inherit handles
0, // creation flags
NULL, // environment
curr_dir, // current directory
&si, // startup info
&pi)) { // process info
dwErrorCode = GetLastError();
ReportErrorCode(L"CreateProcess", dwErrorCode);
}
goto create_process_done;
}
// From here on is the secure S4U implementation for CreateProcessAsUser
// We desire to grant process access to NM so that it can interogate process status
// and resource utilization. Passing in a security descriptor though results in the
// S4U privilege checks being done against that SD and CreateProcessAsUser fails.
// So instead we create the process suspended and then we add the desired ACEs.
//
if (!CreateProcessAsUser(
logonHandle, // logon token handle
NULL, // Application handle
cmdLine, // command line
NULL, // process security attributes
NULL, // thread security attributes
FALSE, // inherit handles
CREATE_UNICODE_ENVIRONMENT | CREATE_SUSPENDED, // creation flags
envBlock, // environment
curr_dir, // current directory
&si, // startup info
&pi)) { // process info
dwErrorCode = GetLastError();
ReportErrorCode(L"CreateProcessAsUser", dwErrorCode);
goto create_process_done;
}
dwErrorCode = AddNodeManagerAndUserACEsToObject(pi.hProcess, userName, PROCESS_ALL_ACCESS);
if (dwErrorCode) {
ReportErrorCode(L"AddNodeManagerAndUserACEsToObject", dwErrorCode);
goto create_process_done;
}
if (-1 == ResumeThread(pi.hThread)) {
dwErrorCode = GetLastError();
ReportErrorCode(L"ResumeThread", dwErrorCode);
goto create_process_done;
}
create_process_done:
if (dwErrorCode) {
if( envBlock != NULL ) {
DestroyEnvironmentBlock( envBlock );
envBlock = NULL;
}
// We have to explictly Terminate, passing in the error code
// simply closing the job would kill our own process with success exit status
TerminateJobObject(jobObject, dwErrorCode);
// This is tehnically dead code, we cannot reach this condition
return dwErrorCode;
}
CloseHandle(pi.hThread);
// Wait until child process exits.
WaitForSingleObject( pi.hProcess, INFINITE );
if(GetExitCodeProcess(pi.hProcess, &exitCode) == 0)
{
dwErrorCode = GetLastError();
}
CloseHandle( pi.hProcess );
if( envBlock != NULL ) {
DestroyEnvironmentBlock( envBlock );
envBlock = NULL;
}
// Terminate job object so that all spawned processes are also killed.
// This is needed because once this process closes the handle to the job
// object and none of the spawned objects have the handle open (via
// inheritance on creation) then it will not be possible for any other external
// program (say winutils task kill) to terminate this job object via its name.
if(TerminateJobObject(jobObject, exitCode) == 0)
{
dwErrorCode = GetLastError();
}
// comes here only on failure of TerminateJobObject
CloseHandle(jobObject);
if(dwErrorCode != ERROR_SUCCESS)
{
return dwErrorCode;
}
return exitCode;
}
//----------------------------------------------------------------------------
// Function: CreateTask
//
// Description:
// Creates a task via a jobobject. Outputs the
// appropriate information to stdout on success, or stderr on failure.
//
// Returns:
// ERROR_SUCCESS: On success
// GetLastError: otherwise
DWORD CreateTask(__in PCWSTR jobObjName,__in PWSTR cmdLine)
{
// call with null logon in order to create tasks utilizing the current logon
return CreateTaskImpl( NULL, jobObjName, cmdLine, NULL);
}
//----------------------------------------------------------------------------
// Function: CreateTaskAsUser
//
// Description:
// Creates a task via a jobobject. Outputs the
// appropriate information to stdout on success, or stderr on failure.
//
// Returns:
// ERROR_SUCCESS: On success
// GetLastError: otherwise
DWORD CreateTaskAsUser(__in PCWSTR jobObjName,
__in PCWSTR user, __in PCWSTR pidFilePath, __in PCWSTR cmdLine)
{
DWORD err = ERROR_SUCCESS;
DWORD exitCode = EXIT_FAILURE;
ULONG authnPkgId;
HANDLE lsaHandle = INVALID_HANDLE_VALUE;
PROFILEINFO pi;
BOOL profileIsLoaded = FALSE;
FILE* pidFile = NULL;
DWORD retLen = 0;
HANDLE logonHandle = NULL;
err = EnableImpersonatePrivileges();
if( err != ERROR_SUCCESS ) {
ReportErrorCode(L"EnableImpersonatePrivileges", err);
goto done;
}
err = RegisterWithLsa(LOGON_PROCESS_NAME ,&lsaHandle);
if( err != ERROR_SUCCESS ) {
ReportErrorCode(L"RegisterWithLsa", err);
goto done;
}
err = LookupKerberosAuthenticationPackageId( lsaHandle, &authnPkgId );
if( err != ERROR_SUCCESS ) {
ReportErrorCode(L"LookupKerberosAuthenticationPackageId", err);
goto done;
}
err = CreateLogonTokenForUser(lsaHandle,
LOGON_PROCESS_NAME,
TOKEN_SOURCE_NAME,
authnPkgId,
user,
&logonHandle);
if( err != ERROR_SUCCESS ) {
ReportErrorCode(L"CreateLogonTokenForUser", err);
goto done;
}
err = LoadUserProfileForLogon(logonHandle, &pi);
if( err != ERROR_SUCCESS ) {
ReportErrorCode(L"LoadUserProfileForLogon", err);
goto done;
}
profileIsLoaded = TRUE;
// Create the PID file
if (!(pidFile = _wfopen(pidFilePath, "w"))) {
err = GetLastError();
ReportErrorCode(L"_wfopen:pidFilePath", err);
goto done;
}
if (0 > fprintf_s(pidFile, "%ls", jobObjName)) {
err = GetLastError();
}
fclose(pidFile);
if (err != ERROR_SUCCESS) {
ReportErrorCode(L"fprintf_s:pidFilePath", err);
goto done;
}
err = CreateTaskImpl(logonHandle, jobObjName, cmdLine, user);
done:
if( profileIsLoaded ) {
UnloadProfileForLogon( logonHandle, &pi );
profileIsLoaded = FALSE;
}
if( logonHandle != NULL ) {
CloseHandle(logonHandle);
}
if (INVALID_HANDLE_VALUE != lsaHandle) {
UnregisterWithLsa(lsaHandle);
}
return err;
}
//----------------------------------------------------------------------------
// Function: IsTaskAlive
//
// Description:
// Checks if a task is alive via a jobobject. Outputs the
// appropriate information to stdout on success, or stderr on failure.
//
// Returns:
// ERROR_SUCCESS: On success
// GetLastError: otherwise
DWORD IsTaskAlive(const WCHAR* jobObjName, int* isAlive, int* procsInJob)
{
PJOBOBJECT_BASIC_PROCESS_ID_LIST procList;
HANDLE jobObject = NULL;
int numProcs = 100;
WCHAR secureJobNameBuffer[MAX_PATH];
*isAlive = FALSE;
jobObject = OpenJobObject(JOB_OBJECT_QUERY, FALSE, jobObjName);
if(jobObject == NULL)
{
// Try Global\...
DWORD err = GetSecureJobObjectName(jobObjName, MAX_PATH, secureJobNameBuffer);
if (err) {
ReportErrorCode(L"GetSecureJobObjectName", err);
return err;
}
jobObject = OpenJobObject(JOB_OBJECT_QUERY, FALSE, secureJobNameBuffer);
}
if(jobObject == NULL)
{
DWORD err = GetLastError();
return err;
}
if(jobObject == NULL)
{
DWORD err = GetLastError();
if(err == ERROR_FILE_NOT_FOUND)
{
// job object does not exist. assume its not alive
return ERROR_SUCCESS;
}
return err;
}
procList = (PJOBOBJECT_BASIC_PROCESS_ID_LIST) LocalAlloc(LPTR, sizeof (JOBOBJECT_BASIC_PROCESS_ID_LIST) + numProcs*32);
if (!procList)
{
DWORD err = GetLastError();
CloseHandle(jobObject);
return err;
}
if(QueryInformationJobObject(jobObject, JobObjectBasicProcessIdList, procList, sizeof(JOBOBJECT_BASIC_PROCESS_ID_LIST)+numProcs*32, NULL) == 0)
{
DWORD err = GetLastError();
if(err != ERROR_MORE_DATA)
{
CloseHandle(jobObject);
LocalFree(procList);
return err;
}
}
if(procList->NumberOfAssignedProcesses > 0)
{
*isAlive = TRUE;
*procsInJob = procList->NumberOfAssignedProcesses;
}
LocalFree(procList);
return ERROR_SUCCESS;
}
//----------------------------------------------------------------------------
// Function: PrintTaskProcessList
//
// Description:
// Prints resource usage of all processes in the task jobobject
//
// Returns:
// ERROR_SUCCESS: On success
// GetLastError: otherwise
DWORD PrintTaskProcessList(const WCHAR* jobObjName)
{
DWORD i;
PJOBOBJECT_BASIC_PROCESS_ID_LIST procList;
int numProcs = 100;
WCHAR secureJobNameBuffer[MAX_PATH];
HANDLE jobObject = NULL;
jobObject = OpenJobObject(JOB_OBJECT_QUERY, FALSE, jobObjName);
if(jobObject == NULL)
{
// Try Global\...
DWORD err = GetSecureJobObjectName(jobObjName, MAX_PATH, secureJobNameBuffer);
if (err) {
ReportErrorCode(L"GetSecureJobObjectName", err);
return err;
}
jobObject = OpenJobObject(JOB_OBJECT_QUERY, FALSE, secureJobNameBuffer);
}
if(jobObject == NULL)
{
DWORD err = GetLastError();
return err;
}
procList = (PJOBOBJECT_BASIC_PROCESS_ID_LIST) LocalAlloc(LPTR, sizeof (JOBOBJECT_BASIC_PROCESS_ID_LIST) + numProcs*32);
if (!procList)
{
DWORD err = GetLastError();
CloseHandle(jobObject);
return err;
}
while(QueryInformationJobObject(jobObject, JobObjectBasicProcessIdList, procList, sizeof(JOBOBJECT_BASIC_PROCESS_ID_LIST)+numProcs*32, NULL) == 0)
{
DWORD err = GetLastError();
if(err != ERROR_MORE_DATA)
{
CloseHandle(jobObject);
LocalFree(procList);
return err;
}
numProcs = procList->NumberOfAssignedProcesses;
LocalFree(procList);
procList = (PJOBOBJECT_BASIC_PROCESS_ID_LIST) LocalAlloc(LPTR, sizeof (JOBOBJECT_BASIC_PROCESS_ID_LIST) + numProcs*32);
if (procList == NULL)
{
err = GetLastError();
CloseHandle(jobObject);
return err;
}
}
for(i=0; i<procList->NumberOfProcessIdsInList; ++i)
{
HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION, FALSE, (DWORD)procList->ProcessIdList[i] );
if( hProcess != NULL )
{
PROCESS_MEMORY_COUNTERS_EX pmc;
if ( GetProcessMemoryInfo( hProcess, (PPROCESS_MEMORY_COUNTERS)&pmc, sizeof(pmc)) )
{
FILETIME create, exit, kernel, user;
if( GetProcessTimes( hProcess, &create, &exit, &kernel, &user) )
{
ULARGE_INTEGER kernelTime, userTime;
ULONGLONG cpuTimeMs;
kernelTime.HighPart = kernel.dwHighDateTime;
kernelTime.LowPart = kernel.dwLowDateTime;
userTime.HighPart = user.dwHighDateTime;
userTime.LowPart = user.dwLowDateTime;
cpuTimeMs = (kernelTime.QuadPart+userTime.QuadPart)/10000;
fwprintf_s(stdout, L"%Iu,%Iu,%Iu,%I64u\n", procList->ProcessIdList[i], pmc.PrivateUsage, pmc.WorkingSetSize, cpuTimeMs);
}
}
CloseHandle( hProcess );
}
}
LocalFree(procList);
CloseHandle(jobObject);
return ERROR_SUCCESS;
}
//----------------------------------------------------------------------------
// Function: Task
//
// Description:
// Manages a task via a jobobject (create/isAlive/kill). Outputs the
// appropriate information to stdout on success, or stderr on failure.
//
// Returns:
// ERROR_SUCCESS: On success
// Error code otherwise: otherwise
int Task(__in int argc, __in_ecount(argc) wchar_t *argv[])
{
DWORD dwErrorCode = ERROR_SUCCESS;
TaskCommandOption command = TaskInvalid;
wchar_t* cmdLine = NULL;
wchar_t buffer[16*1024] = L""; // 32K max command line
size_t charCountBufferLeft = sizeof(buffer)/sizeof(wchar_t);
int crtArgIndex = 0;
size_t argLen = 0;
size_t wscatErr = 0;
wchar_t* insertHere = NULL;
enum {
ARGC_JOBOBJECTNAME = 2,
ARGC_USERNAME,
ARGC_PIDFILE,
ARGC_COMMAND,
ARGC_COMMAND_ARGS
};
if (!ParseCommandLine(argc, argv, &command)) {
dwErrorCode = ERROR_INVALID_COMMAND_LINE;
fwprintf(stderr, L"Incorrect command line arguments.\n\n");
TaskUsage();
goto TaskExit;
}
if (command == TaskCreate)
{
// Create the task jobobject
//
dwErrorCode = CreateTask(argv[2], argv[3]);
if (dwErrorCode != ERROR_SUCCESS)
{
ReportErrorCode(L"CreateTask", dwErrorCode);
goto TaskExit;
}
} else if (command == TaskCreateAsUser)
{
// Create the task jobobject as a domain user
// createAsUser accepts an open list of arguments. All arguments after the command are
// to be passed as argumrnts to the command itself.Here we're concatenating all
// arguments after the command into a single arg entry.
//
cmdLine = argv[ARGC_COMMAND];
if (argc > ARGC_COMMAND_ARGS) {
crtArgIndex = ARGC_COMMAND;
insertHere = buffer;
while (crtArgIndex < argc) {
argLen = wcslen(argv[crtArgIndex]);
wscatErr = wcscat_s(insertHere, charCountBufferLeft, argv[crtArgIndex]);
switch (wscatErr) {
case 0:
// 0 means success;
break;
case EINVAL:
dwErrorCode = ERROR_INVALID_PARAMETER;
goto TaskExit;
case ERANGE:
dwErrorCode = ERROR_INSUFFICIENT_BUFFER;
goto TaskExit;
default:
// This case is not MSDN documented.
dwErrorCode = ERROR_GEN_FAILURE;
goto TaskExit;
}
insertHere += argLen;
charCountBufferLeft -= argLen;
insertHere[0] = L' ';
insertHere += 1;
charCountBufferLeft -= 1;
insertHere[0] = 0;
++crtArgIndex;
}
cmdLine = buffer;
}
dwErrorCode = CreateTaskAsUser(
argv[ARGC_JOBOBJECTNAME], argv[ARGC_USERNAME], argv[ARGC_PIDFILE], cmdLine);
if (dwErrorCode != ERROR_SUCCESS)
{
ReportErrorCode(L"CreateTaskAsUser", dwErrorCode);
goto TaskExit;
}
} else if (command == TaskIsAlive)
{
// Check if task jobobject
//
int isAlive;
int numProcs;
dwErrorCode = IsTaskAlive(argv[2], &isAlive, &numProcs);
if (dwErrorCode != ERROR_SUCCESS)
{
ReportErrorCode(L"IsTaskAlive", dwErrorCode);
goto TaskExit;
}
// Output the result
if(isAlive == TRUE)
{
fwprintf(stdout, L"IsAlive,%d\n", numProcs);
}
else
{
dwErrorCode = ERROR_TASK_NOT_ALIVE;
ReportErrorCode(L"IsTaskAlive returned false", dwErrorCode);
goto TaskExit;
}
} else if (command == TaskKill)
{
// Check if task jobobject
//
dwErrorCode = KillTask(argv[2]);
if (dwErrorCode != ERROR_SUCCESS)
{
ReportErrorCode(L"KillTask", dwErrorCode);
goto TaskExit;
}
} else if (command == TaskProcessList)
{
// Check if task jobobject
//
dwErrorCode = PrintTaskProcessList(argv[2]);
if (dwErrorCode != ERROR_SUCCESS)
{
ReportErrorCode(L"PrintTaskProcessList", dwErrorCode);
goto TaskExit;
}
} else
{
// Should not happen
//
assert(FALSE);
}
TaskExit:
ReportErrorCode(L"TaskExit:", dwErrorCode);
return dwErrorCode;
}
void TaskUsage()
{
// Hadoop code checks for this string to determine if
// jobobject's are being used.
// ProcessTree.isSetsidSupported()
fwprintf(stdout, L"\
Usage: task create [TASKNAME] [COMMAND_LINE] |\n\
task createAsUser [TASKNAME] [USERNAME] [PIDFILE] [COMMAND_LINE] |\n\
task isAlive [TASKNAME] |\n\
task kill [TASKNAME]\n\
task processList [TASKNAME]\n\
Creates a new task jobobject with taskname\n\
Creates a new task jobobject with taskname as the user provided\n\
Checks if task jobobject is alive\n\
Kills task jobobject\n\
Prints to stdout a list of processes in the task\n\
along with their resource usage. One process per line\n\
and comma separated info per process\n\
ProcessId,VirtualMemoryCommitted(bytes),\n\
WorkingSetSize(bytes),CpuTime(Millisec,Kernel+User)\n");
}
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