version 1.12.4.1, 2007/11/09 19:05:07
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version 1.20, 2008/08/28 17:24:36
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# include <windows.h> | # include <windows.h> |
#else | #else |
# include <unistd.h> | # include <unistd.h> |
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# include <errno.h> |
# include <sys/types.h> | # include <sys/types.h> |
# include <sys/time.h> | # include <sys/time.h> |
# include <sys/resource.h> | # include <sys/resource.h> |
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# include <as400_protos.h> // For fork400() | # include <as400_protos.h> // For fork400() |
#endif | #endif |
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#ifdef PEGASUS_OS_ZOS |
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# include <spawn.h> |
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#endif |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
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const char* path, | const char* path, |
int mode) | int mode) |
{ | { |
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FILE* fhandle = NULL; |
switch (mode) | switch (mode) |
{ | { |
case 'r': | case 'r': |
return fopen(path, "rb"); |
fhandle = fopen(path, "r"); |
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break; |
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case 'w': | case 'w': |
return fopen(path, "wb"); |
fhandle = fopen(path, "w"); |
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break; |
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case 'a': | case 'a': |
return fopen(path, "a+"); |
fhandle = fopen(path, "a+"); |
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break; |
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default: | default: |
return NULL; |
PEGASUS_ASSERT(fhandle); |
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break; |
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} |
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if(!fhandle) |
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{ |
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PEG_TRACE((TRC_SERVER, Tracer::LEVEL1, |
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"Open of file %s in mode %c failed: %s",path,mode, |
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(const char*) PEGASUS_SYSTEM_ERRORMSG.getCString())); |
} | } |
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return fhandle; |
} | } |
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virtual int renameFile( | virtual int renameFile( |
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AnonymousPipe*& readPipe, | AnonymousPipe*& readPipe, |
AnonymousPipe*& writePipe) | AnonymousPipe*& writePipe) |
{ | { |
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PEG_METHOD_ENTER(TRC_SERVER,"ExecutorLoopbackImpl::startProviderAgent"); |
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#if !defined(PEGASUS_ENABLE_PRIVILEGE_SEPARATION) | #if !defined(PEGASUS_ENABLE_PRIVILEGE_SEPARATION) |
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// Resolve full path of "cimprovagt" program. |
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String path = FileSystem::getAbsolutePath( |
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pegasusHome.getCString(), PEGASUS_PROVIDER_AGENT_PROC_NAME); |
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// Create CString handles for cimprovagt arguments |
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CString agentProgramPath = path.getCString(); |
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CString userNameCString = userName.getCString(); |
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# if defined(PEGASUS_DISABLE_PROV_USERCTXT) |
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const char* setUserContextFlag = "0"; // False |
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# else |
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const char* setUserContextFlag = "1"; // True |
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# endif |
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# if defined(PEGASUS_OS_TYPE_WINDOWS) | # if defined(PEGASUS_OS_TYPE_WINDOWS) |
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AutoMutex autoMutex(_mutex); | AutoMutex autoMutex(_mutex); |
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ZeroMemory(&siStartInfo, sizeof (STARTUPINFO)); | ZeroMemory(&siStartInfo, sizeof (STARTUPINFO)); |
siStartInfo.cb = sizeof (STARTUPINFO); | siStartInfo.cb = sizeof (STARTUPINFO); |
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// Build full path of "cimprovagt" program. |
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String path = FileSystem::getAbsolutePath( |
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pegasusHome.getCString(), PEGASUS_PROVIDER_AGENT_PROC_NAME); |
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// Format command line. | // Format command line. |
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char cmdLine[2048]; | char cmdLine[2048]; |
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sprintf(cmdLine, "\"%s\" %s %s \"%s\"", |
sprintf(cmdLine, "\"%s\" %s %s %s \"%s\" \"%s\"", |
(const char*)path.getCString(), |
(const char*)agentProgramPath, |
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setUserContextFlag, |
readHandle, | readHandle, |
writeHandle, | writeHandle, |
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(const char*)userNameCString, |
module); | module); |
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// Create provider agent proess. | // Create provider agent proess. |
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&siStartInfo, // STARTUPINFO | &siStartInfo, // STARTUPINFO |
&piProcInfo)) // PROCESS_INFORMATION | &piProcInfo)) // PROCESS_INFORMATION |
{ | { |
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PEG_METHOD_EXIT(); |
return -1; | return -1; |
} | } |
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readPipe = pipeFromAgent.release(); | readPipe = pipeFromAgent.release(); |
writePipe = pipeToAgent.release(); | writePipe = pipeToAgent.release(); |
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PEG_METHOD_EXIT(); |
return 0; | return 0; |
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# else /* POSIX CASE FOLLOWS */ | # else /* POSIX CASE FOLLOWS */ |
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int to[2]; | int to[2]; |
int from[2]; | int from[2]; |
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char toPipeArg[32]; |
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char fromPipeArg[32]; |
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do | do |
{ | { |
// Resolve full path of "cimprovagt". |
// Create "to-agent" pipe: |
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String path = FileSystem::getAbsolutePath( |
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pegasusHome.getCString(), PEGASUS_PROVIDER_AGENT_PROC_NAME); |
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# if !defined(PEGASUS_DISABLE_PROV_USERCTXT) && !defined(PEGASUS_OS_ZOS) |
if (pipe(to) != 0) |
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{ |
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PEG_METHOD_EXIT(); |
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return -1; |
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} |
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PEGASUS_UID_T newUid = (PEGASUS_UID_T)-1; |
// Create "from-agent" pipe: |
PEGASUS_GID_T newGid = (PEGASUS_GID_T)-1; |
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if (userName != System::getEffectiveUserName()) |
if (pipe(from) != 0) |
{ |
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if (!System::lookupUserId( |
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userName.getCString(), newUid, newGid)) |
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{ | { |
PEG_TRACE((TRC_DISCARDED_DATA, Tracer::LEVEL2, |
PEG_METHOD_EXIT(); |
"System::lookupUserId(%s) failed.", |
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(const char*)userName.getCString())); |
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return -1; | return -1; |
} | } |
} |
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# endif /* !defined(PEGASUS_DISABLE_PROV_USERCTXT) */ |
// Initialize the cimprovagt pipe arguments: |
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// Create "to-agent" pipe: |
sprintf(toPipeArg, "%d", to[0]); |
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sprintf(fromPipeArg, "%d", from[1]); |
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if (pipe(to) != 0) |
// Start provider agent: |
return -1; |
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// Create "from-agent" pipe: |
# if defined(PEGASUS_OS_ZOS) |
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// zOS uses __spawn2() instead of fork() to start provider agent |
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if (pipe(from) != 0) |
struct __inheritance inherit; |
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const char *c_argv[7]; |
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c_argv[0] = agentProgramPath; |
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c_argv[1] = setUserContextFlag; |
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c_argv[2] = toPipeArg; |
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c_argv[3] = fromPipeArg; |
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c_argv[4] = userNameCString; |
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c_argv[5] = module; |
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c_argv[6] = NULL; |
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// reset the inherit structure |
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memset(&inherit,0,sizeof(inherit)); |
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// The provider agent should get a defined JobName. |
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inherit.flags=SPAWN_SETJOBNAME; |
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memcpy( inherit.jobname,"CFZOOPA ", |
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sizeof(inherit.jobname)); |
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PEG_TRACE((TRC_SERVER, Tracer::LEVEL4, |
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"Starting provider agent: %s %s %s %s %s %s %s", |
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(const char*)agentProgramPath, |
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c_argv[0], |
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c_argv[1], |
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c_argv[2], |
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c_argv[3], |
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c_argv[4], |
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c_argv[5])); |
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pid = __spawn2(agentProgramPath,0,NULL,&inherit, |
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c_argv,(const char **)environ); |
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if (pid < 0) |
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{ |
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PEG_TRACE((TRC_SERVER, Tracer::LEVEL1, |
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"Spawn of provider agent fails:%s " |
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"( errno %d , reason code %08X )", |
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strerror(errno) ,errno,__errno2())); |
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PEG_METHOD_EXIT(); |
return -1; | return -1; |
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} |
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// Fork process: |
# else // !defined(PEGASUS_OS_ZOS) |
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# if defined(PEGASUS_OS_VMS) | # if defined(PEGASUS_OS_VMS) |
pid = (int)vfork(); | pid = (int)vfork(); |
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# endif | # endif |
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if (pid < 0) | if (pid < 0) |
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{ |
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PEG_TRACE((TRC_SERVER, Tracer::LEVEL1, |
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"Fork for provider agent fails: errno = %d",errno)); |
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PEG_METHOD_EXIT(); |
return -1; | return -1; |
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} |
// If child proceses. |
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if (pid == 0) | if (pid == 0) |
{ | { |
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// Child process |
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# if !defined(PEGASUS_OS_VMS) | # if !defined(PEGASUS_OS_VMS) |
// Close unused pipe descriptors: | // Close unused pipe descriptors: |
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close(to[1]); | close(to[1]); |
close(from[0]); | close(from[0]); |
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// Close unused descriptors. Leave stdin, stdout, stderr, | // Close unused descriptors. Leave stdin, stdout, stderr, |
// and the child's pipe descriptors open. | // and the child's pipe descriptors open. |
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# endif /* !defined(PEGASUS_OS_VMS) */ | # endif /* !defined(PEGASUS_OS_VMS) */ |
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# if !defined(PEGASUS_DISABLE_PROV_USERCTXT) && !defined(PEGASUS_OS_ZOS) |
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// Set uid and gid for the new provider agent process. |
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if (newUid != (PEGASUS_UID_T)-1 && newGid != (PEGASUS_GID_T)-1) |
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{ |
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if (!System::changeUserContext_SingleThreaded( |
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userName.getCString(), newUid, newGid)) |
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{ |
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return -1; |
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} |
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} |
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# endif /* !defined(PEGASUS_DISABLE_PROV_USERCTXT) */ |
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// Exec the cimprovagt program. | // Exec the cimprovagt program. |
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char arg1[32]; |
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char arg2[32]; |
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sprintf(arg1, "%d", to[0]); |
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sprintf(arg2, "%d", from[1]); |
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{ | { |
CString cstr = path.getCString(); |
if (execl( |
if (execl(cstr, cstr, arg1, arg2, module, (char*)0) == -1) |
agentProgramPath, |
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agentProgramPath, |
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setUserContextFlag, |
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toPipeArg, |
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fromPipeArg, |
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(const char*)userNameCString, |
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module, |
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(char*)0) == -1) |
{ | { |
PEG_TRACE((TRC_DISCARDED_DATA, Tracer::LEVEL2, |
PEG_TRACE((TRC_SERVER, Tracer::LEVEL1, |
"execl() failed. errno = %d.", errno)); | "execl() failed. errno = %d.", errno)); |
_exit(1); | _exit(1); |
} | } |
} | } |
} | } |
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# endif /* PEGASUS_OS_ZOS */ |
} | } |
while (0); | while (0); |
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PEG_TRACE((TRC_SERVER, Tracer::LEVEL4, |
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"Provider agent started: pid(%d).", pid)); |
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// Close unused pipe descriptors. | // Close unused pipe descriptors. |
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close(to[0]); | close(to[0]); |
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readPipe = new AnonymousPipe(readFdStr, 0); | readPipe = new AnonymousPipe(readFdStr, 0); |
writePipe = new AnonymousPipe(0, writeFdStr); | writePipe = new AnonymousPipe(0, writeFdStr); |
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# if defined(PEGASUS_HAS_SIGNALS) |
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# if !defined(PEGASUS_DISABLE_PROV_USERCTXT) && !defined(PEGASUS_OS_ZOS) |
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// The cimprovagt forks and returns right away. Clean up the zombie |
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// process now instead of in reapProviderAgent(). |
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int status = 0; |
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while ((status = waitpid(pid, 0, 0)) == -1 && errno == EINTR) |
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; |
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# endif |
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# endif |
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PEG_METHOD_EXIT(); |
return 0; | return 0; |
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# endif /* POSIX CASE */ | # endif /* POSIX CASE */ |
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int status = 0; | int status = 0; |
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# if defined(PEGASUS_HAS_SIGNALS) | # if defined(PEGASUS_HAS_SIGNALS) |
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# if defined(PEGASUS_DISABLE_PROV_USERCTXT) || defined(PEGASUS_OS_ZOS) |
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// When provider user context is enabled, this is done in |
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// startProviderAgent(). |
while ((status = waitpid(pid, 0, 0)) == -1 && errno == EINTR) | while ((status = waitpid(pid, 0, 0)) == -1 && errno == EINTR) |
; | ; |
# endif | # endif |
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# endif |
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return status; | return status; |
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