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Pass arguments to the service program.

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This commit is contained in:
Alexander Yaworsky 2004-09-21 00:23:32 +00:00 committed by Alexandre Julliard
parent 58722d6f9e
commit 9d590d5059
1 changed files with 133 additions and 22 deletions
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155
dlls/advapi32/service.c
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@ -39,6 +39,14 @@ static const WCHAR szServiceManagerKey[] = { 'S','y','s','t','e','m','\\',
'S','e','r','v','i','c','e','s','\\',0 };
static const WCHAR szSCMLock[] = {'A','D','V','A','P','I','_','S','C','M',
'L','O','C','K',0};
static const WCHAR szServiceShmemNameFmtW[] = {'A','D','V','A','P','I','_',
'S','E','B','_','%','s',0};
struct SEB /* service environment block */
{ /* resides in service's shared memory object */
DWORD argc;
/* variable part of SEB contains service arguments */
};
/******************************************************************************
* SC_HANDLEs
@ -209,6 +217,34 @@ static BOOL read_scm_lock_data( LPWSTR buffer )
return TRUE;
}
/******************************************************************************
* build_arg_vectors
*
* helper function for StartServiceCtrlDispatcherA/W
*
* Allocate and initialize array of LPWSTRs to arguments in variable part
* of service environment block.
* First entry in the array is reserved for service name and not initialized.
*/
static LPWSTR* build_arg_vectors( struct SEB* seb )
{
LPWSTR *ret;
LPWSTR argptr;
DWORD i;
ret = HeapAlloc( GetProcessHeap(), 0, (1 + seb->argc) * sizeof(LPWSTR) );
if( NULL == ret )
return NULL;
argptr = (LPWSTR) &seb[1];
for( i = 0; i < seb->argc; i++ )
{
ret[ 1 + i ] = argptr;
argptr += 1 + strlenW( argptr );
}
return ret;
}
/******************************************************************************
* StartServiceCtrlDispatcherA [ADVAPI32.@]
*/
@ -217,9 +253,11 @@ StartServiceCtrlDispatcherA( LPSERVICE_TABLE_ENTRYA servent )
{
LPSERVICE_MAIN_FUNCTIONA fpMain;
WCHAR service_name[ MAX_SERVICE_NAME ];
LPWSTR argv0;
WCHAR object_name[ MAX_PATH ];
HANDLE hServiceShmem = NULL;
struct SEB *seb = NULL;
DWORD dwNumServiceArgs ;
LPWSTR *lpArgVecW;
LPWSTR *lpArgVecW = NULL;
LPSTR *lpArgVecA;
unsigned int i;
@ -238,18 +276,31 @@ StartServiceCtrlDispatcherA( LPSERVICE_TABLE_ENTRYA servent )
goto run_service;
}
/* FIXME: other args */
dwNumServiceArgs = 1;
argv0 = service_name;
lpArgVecW = &argv0;
snprintfW( object_name, MAX_PATH, szServiceShmemNameFmtW, service_name );
hServiceShmem = OpenFileMappingW( FILE_MAP_ALL_ACCESS, FALSE, object_name );
if( NULL == hServiceShmem )
return FALSE;
seb = MapViewOfFile( hServiceShmem, FILE_MAP_ALL_ACCESS, 0, 0, 0 );
if( NULL == seb )
{
CloseHandle( hServiceShmem );
return FALSE;
}
lpArgVecW = build_arg_vectors( seb );
if( NULL == lpArgVecW )
{
UnmapViewOfFile( seb );
CloseHandle( hServiceShmem );
return FALSE;
}
lpArgVecW[0] = service_name;
dwNumServiceArgs = seb->argc + 1;
/* Convert the Unicode arg vectors back to ASCII */
if(dwNumServiceArgs)
lpArgVecA = (LPSTR*) HeapAlloc( GetProcessHeap(), 0,
dwNumServiceArgs*sizeof(LPSTR) );
else
lpArgVecA = NULL;
lpArgVecA = (LPSTR*) HeapAlloc( GetProcessHeap(), 0,
dwNumServiceArgs*sizeof(LPSTR) );
for(i=0; i<dwNumServiceArgs; i++)
lpArgVecA[i]=HEAP_strdupWtoA(GetProcessHeap(), 0, lpArgVecW[i]);
@ -273,6 +324,9 @@ run_service:
HeapFree(GetProcessHeap(), 0, lpArgVecA);
}
if( lpArgVecW ) HeapFree( GetProcessHeap(), 0, lpArgVecW );
if( seb ) UnmapViewOfFile( seb );
if( hServiceShmem ) CloseHandle( hServiceShmem );
return TRUE;
}
@ -286,8 +340,10 @@ BOOL WINAPI
StartServiceCtrlDispatcherW( LPSERVICE_TABLE_ENTRYW servent )
{
LPSERVICE_MAIN_FUNCTIONW fpMain;
LPWSTR argv0;
WCHAR service_name[ MAX_SERVICE_NAME ];
WCHAR object_name[ MAX_PATH ];
HANDLE hServiceShmem;
struct SEB *seb;
DWORD dwNumServiceArgs ;
LPWSTR *lpServiceArgVectors ;
@ -296,10 +352,27 @@ StartServiceCtrlDispatcherW( LPSERVICE_TABLE_ENTRYW servent )
if( ! read_scm_lock_data( service_name ) )
return FALSE;
/* FIXME: other args */
dwNumServiceArgs = 1;
argv0 = service_name;
lpServiceArgVectors = &argv0;
snprintfW( object_name, MAX_PATH, szServiceShmemNameFmtW, service_name );
hServiceShmem = OpenFileMappingW( FILE_MAP_ALL_ACCESS, FALSE, object_name );
if( NULL == hServiceShmem )
return FALSE;
seb = MapViewOfFile( hServiceShmem, FILE_MAP_ALL_ACCESS, 0, 0, 0 );
if( NULL == seb )
{
CloseHandle( hServiceShmem );
return FALSE;
}
lpServiceArgVectors = build_arg_vectors( seb );
if( NULL == lpServiceArgVectors )
{
UnmapViewOfFile( seb );
CloseHandle( hServiceShmem );
return FALSE;
}
lpServiceArgVectors[0] = service_name;
dwNumServiceArgs = seb->argc + 1;
/* FIXME: should we blindly start all services? */
while (servent->lpServiceName) {
@ -312,6 +385,9 @@ StartServiceCtrlDispatcherW( LPSERVICE_TABLE_ENTRYW servent )
servent++;
}
HeapFree( GetProcessHeap(), 0, lpServiceArgVectors );
UnmapViewOfFile( seb );
CloseHandle( hServiceShmem );
return TRUE;
}
@ -904,10 +980,14 @@ StartServiceW( SC_HANDLE hService, DWORD dwNumServiceArgs,
struct sc_handle *hsvc = hService;
WCHAR path[MAX_PATH],str[MAX_PATH];
DWORD type,size;
DWORD i;
long r;
HANDLE hLock;
HANDLE hServiceShmem = NULL;
HANDLE wait = NULL;
LPWSTR shmem_lock = NULL;
struct SEB *seb = NULL;
LPWSTR argptr;
PROCESS_INFORMATION procinfo;
STARTUPINFOW startupinfo;
BOOL ret = FALSE;
@ -941,6 +1021,40 @@ StartServiceW( SC_HANDLE hService, DWORD dwNumServiceArgs,
}
strcpyW( shmem_lock, hsvc->u.service.name );
/* create service environment block */
size = sizeof(struct SEB);
for( i = 0; i < dwNumServiceArgs; i++ )
size += sizeof(WCHAR) * (1 + strlenW( lpServiceArgVectors[ i ] ));
snprintfW( str, MAX_PATH, szServiceShmemNameFmtW, hsvc->u.service.name );
hServiceShmem = CreateFileMappingW( INVALID_HANDLE_VALUE,
NULL, PAGE_READWRITE, 0, size, str );
if( NULL == hServiceShmem )
{
ERR("Couldn't create shared memory object\n");
goto done;
}
if( GetLastError() == ERROR_ALREADY_EXISTS )
{
SetLastError( ERROR_SERVICE_ALREADY_RUNNING );
goto done;
}
seb = MapViewOfFile( hServiceShmem, FILE_MAP_ALL_ACCESS, 0, 0, 0 );
if( NULL == seb )
{
ERR("Couldn't map shared memory\n");
goto done;
}
/* copy service args to SEB */
seb->argc = dwNumServiceArgs;
argptr = (LPWSTR) &seb[1];
for( i = 0; i < dwNumServiceArgs; i++ )
{
strcpyW( argptr, lpServiceArgVectors[ i ] );
argptr += 1 + strlenW( argptr );
}
wait = CreateSemaphoreW(NULL,0,1,_WaitServiceStartW);
if (!wait)
{
@ -948,11 +1062,6 @@ StartServiceW( SC_HANDLE hService, DWORD dwNumServiceArgs,
goto done;
}
/*
* FIXME: lpServiceArgsVectors need to be stored and returned to
* the service when it calls StartServiceCtrlDispatcher
*/
ZeroMemory(&startupinfo,sizeof(STARTUPINFOW));
startupinfo.cb = sizeof(STARTUPINFOW);
@ -988,6 +1097,8 @@ StartServiceW( SC_HANDLE hService, DWORD dwNumServiceArgs,
done:
if( wait ) CloseHandle( wait );
if( seb != NULL ) UnmapViewOfFile( seb );
if( hServiceShmem != NULL ) CloseHandle( hServiceShmem );
if( shmem_lock != NULL ) UnmapViewOfFile( shmem_lock );
UnlockServiceDatabase( hLock );
return ret;