// loaddrv.c - Dynamic driver install/start/stop/remove
// based on Paula Tomlinson's LOADDRV program.
// She describes it in her May 1995 article in Windows/DOS Developer's
// Journal (now Windows Developer's Journal).
// Modified by Chris Liechti <cliechti@gmx.net>
// I removed the old/ugly dialog, it now accepts command line options and
// prints error messages with textual description from the OS.
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "loaddrv.h"
// globals
SC_HANDLE hSCMan = NULL;
//get ext messages for windows error codes:
void DisplayErrorText(DWORD dwLastError) {
LPSTR MessageBuffer;
DWORD dwBufferLength;
DWORD dwFormatFlags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM;
dwBufferLength = FormatMessageA(
dwFormatFlags,
NULL, // module to get message from (NULL == system)
dwLastError,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
(LPSTR) &MessageBuffer,
0,
NULL
);
if (dwBufferLength) {
// Output message
puts(MessageBuffer);
// Free the buffer allocated by the system.
LocalFree(MessageBuffer);
}
}
int exists(char *filename) {
FILE * pFile;
pFile = fopen(filename, "r");
return pFile != NULL;
}
void usage(void) {
printf("USGAE: loaddrv command drivername [args...]\n\n"
"NT/2k/XP Driver and Service modification tool.\n"
"(C)2002 Chris Liechti <cliechti@gmx.net>\n\n"
"Suported commands:\n\n"
" install [fullpathforinstall]\n"
" Install new service. Loaded from given path. If path is not present,\n"
" the local directory is searched for a .sys file. If the service\n"
" already exists, it must be removed first.\n"
" start\n"
" Start service. It must be installed in advance.\n"
" stop\n"
" Stop service.\n"
" remove\n"
" Remove service. It must be stopped in advance.\n"
" status\n"
" Show status information about service.\n"
" starttype auto|manual|system|disable\n"
" Change startup type to the given type.\n"
);
}
int main(int argc, char *argv[]) {
DWORD status = 0;
int level = 0;
if (argc < 3) {
usage();
exit(1);
}
LoadDriverInit();
if (strcmp(argv[1], "start") == 0) {
printf("starting %s... ", argv[2]);
status = DriverStart(argv[2]);
if ( status != OKAY) {
printf("start failed (status %ld):\n", status);
level = 1;
} else {
printf("ok.\n");
}
} else if (strcmp(argv[1], "stop") == 0) {
printf("stoping %s... ", argv[2]);
status = DriverStop(argv[2]);
if ( status != OKAY) {
printf("stop failed (status %ld):\n", status);
level = 1;
} else {
printf("ok.\n");
}
} else if (strcmp(argv[1], "install") == 0) {
char path[MAX_PATH*2];
if (argc<4) {
char cwd[MAX_PATH];
getcwd(cwd, sizeof cwd);
sprintf(path, "%s\\%s.sys", cwd, argv[2]);
} else {
strncpy(path, argv[3], MAX_PATH);
}
if (exists(path)) {
printf("installing %s from %s... ", argv[2], path);
status = DriverInstall(path, argv[2]);
if ( status != OKAY) {
printf("install failed (status %ld):\n", status);
level = 2;
} else {
printf("ok.\n");
}
} else {
printf("install failed, file not found: %s\n", path);
level = 1;
}
} else if (strcmp(argv[1], "remove") == 0) {
printf("removing %s... ", argv[2]);
status = DriverRemove(argv[2]);
if ( status != OKAY) {
printf("remove failed (status %ld):\n", status);
level = 1;
} else {
printf("ok.\n");
}
} else if (strcmp(argv[1], "status") == 0) {
printf("status of %s:\n", argv[2]);
status = DriverStatus(argv[2]);
if ( status != OKAY) {
printf("stat failed (status %ld):\n", status);
level = 1;
} else {
printf("ok.\n");
}
} else if (strcmp(argv[1], "starttype") == 0) {
if (argc < 4) {
printf("Error: need start type (string) as argument.\n");
level = 2;
} else {
DWORD type = 0;
printf("set start type of %s to %s... ", argv[2], argv[3]);
if (strcmp(argv[1], "boot") == 0) {
type = SERVICE_BOOT_START;
} else if (strcmp(argv[3], "system") == 0) {
type = SERVICE_SYSTEM_START;
} else if (strcmp(argv[3], "auto") == 0) {
type = SERVICE_AUTO_START;
} else if (strcmp(argv[3], "manual") == 0) {
type = SERVICE_DEMAND_START;
} else if (strcmp(argv[3], "disabled") == 0) {
type = SERVICE_DISABLED;
} else {
printf("unknown type\n");
level = 1;
}
if (level == 0) {
status = DriverStartType(argv[2], type);
if ( status != OKAY) {
printf("set start type failed (status %ld):\n", status);
level = 1;
} else {
printf("ok.\n");
}
}
}
} else {
usage();
level = 1;
}
if (status) DisplayErrorText(status);
LoadDriverCleanup();
exit(level);
return 0;
}
DWORD LoadDriverInit(void) {
// connect to local service control manager
if ((hSCMan = OpenSCManager(NULL, NULL,
SC_MANAGER_ALL_ACCESS)) == NULL) {
return -1;
}
return OKAY;
}
void LoadDriverCleanup(void) {
if (hSCMan != NULL) CloseServiceHandle(hSCMan);
}
/**-----------------------------------------------------**/
DWORD DriverInstall(LPSTR lpPath, LPSTR lpDriver) {
BOOL dwStatus = OKAY;
SC_HANDLE hService = NULL;
// add to service control manager's database
if ((hService = CreateService(hSCMan, lpDriver,
lpDriver, SERVICE_ALL_ACCESS, SERVICE_KERNEL_DRIVER,
SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL, lpPath,
NULL, NULL, NULL, NULL, NULL)) == NULL)
dwStatus = GetLastError();
else CloseServiceHandle(hService);
return dwStatus;
} // DriverInstall
/**-----------------------------------------------------**/
DWORD DriverStart(LPSTR lpDriver) {
BOOL dwStatus = OKAY;
SC_HANDLE hService = NULL;
// get a handle to the service
if ((hService = OpenService(hSCMan, lpDriver,
SERVICE_ALL_ACCESS)) != NULL)
{
// start the driver
if (!StartService(hService, 0, NULL))
dwStatus = GetLastError();
} else dwStatus = GetLastError();
if (hService != NULL) CloseServiceHandle(hService);
return dwStatus;
} // DriverStart
/**-----------------------------------------------------**/
DWORD DriverStop(LPSTR lpDriver)
{
BOOL dwStatus = OKAY;
SC_HANDLE hService = NULL;
SERVICE_STATUS serviceStatus;
// get a handle to the service
if ((hService = OpenService(hSCMan, lpDriver,
SERVICE_ALL_ACCESS)) != NULL)
{
// stop the driver
if (!ControlService(hService, SERVICE_CONTROL_STOP,
&serviceStatus))
dwStatus = GetLastError();
} else dwStatus = GetLastError();
if (hService != NULL) CloseServiceHandle(hService);
return dwStatus;
} // DriverStop
/**-----------------------------------------------------**/
DWORD DriverRemove(LPSTR lpDriver)
{
BOOL dwStatus = OKAY;
SC_HANDLE hService = NULL;
// get a handle to the service
if ((hService = OpenService(hSCMan, lpDriver,
SERVICE_ALL_ACCESS)) != NULL)
{ // remove the driver
if (!DeleteService(hService))
dwStatus = GetLastError();
} else dwStatus = GetLastError();
if (hService != NULL) CloseServiceHandle(hService);
return dwStatus;
} // DriverRemove
/**-----------------------------------------------------**/
////extensions by Lch
/**-----------------------------------------------------**/
DWORD DriverStatus(LPSTR lpDriver) {
BOOL dwStatus = OKAY;
SC_HANDLE hService = NULL;
DWORD dwBytesNeeded;
// get a handle to the service
if ((hService = OpenService(hSCMan, lpDriver,
SERVICE_ALL_ACCESS)) != NULL)
{
LPQUERY_SERVICE_CONFIG lpqscBuf;
//~ LPSERVICE_DESCRIPTION lpqscBuf2;
// Allocate a buffer for the configuration information.
if ((lpqscBuf = (LPQUERY_SERVICE_CONFIG) LocalAlloc(
LPTR, 4096)) != NULL)
{
//~ if ((lpqscBuf2 = (LPSERVICE_DESCRIPTION) LocalAlloc(
//~ LPTR, 4096)) != NULL)
{
// Get the configuration information.
if (QueryServiceConfig(
hService,
lpqscBuf,
4096,
&dwBytesNeeded) //&&
//~ QueryServiceConfig2(
//~ hService,
//~ SERVICE_CONFIG_DESCRIPTION,
//~ lpqscBuf2,
//~ 4096,
//~ &dwBytesNeeded
)
{
// Print the configuration information.
printf("Type: [0x%02lx] ", lpqscBuf->dwServiceType);
switch (lpqscBuf->dwServiceType) {
case SERVICE_WIN32_OWN_PROCESS:
printf("The service runs in its own process.");
break;
case SERVICE_WIN32_SHARE_PROCESS:
printf("The service shares a process with other services.");
break;
case SERVICE_KERNEL_DRIVER:
printf("Kernel driver.");
break;
case SERVICE_FILE_SYSTEM_DRIVER:
printf("File system driver.");
break;
case SERVICE_INTERACTIVE_PROCESS:
printf("The service can interact with the desktop.");
break;
default:
printf("Unknown type.");
}
printf("\nStart Type: [0x%02lx] ", lpqscBuf->dwStartType);
switch (lpqscBuf->dwStartType) {
case SERVICE_BOOT_START:
printf("Boot");
break;
case SERVICE_SYSTEM_START:
printf("System");
break;
case SERVICE_AUTO_START:
printf("Automatic");
break;
case SERVICE_DEMAND_START:
printf("Manual");
break;
case SERVICE_DISABLED:
printf("Disabled");
break;
default:
printf("Unknown.");
}
printf("\nError Control: [0x%02lx] ", lpqscBuf->dwErrorControl);
switch (lpqscBuf->dwErrorControl) {
case SERVICE_ERROR_IGNORE:
printf("IGNORE: Ignore.");
break;
case SERVICE_ERROR_NORMAL:
printf("NORMAL: Display a message box.");
break;
case SERVICE_ERROR_SEVERE:
printf("SEVERE: Restart with last-known-good config.");
break;
case SERVICE_ERROR_CRITICAL:
printf("CRITICAL: Restart w/ last-known-good config.");
break;
default:
printf("Unknown.");
}
printf("\nBinary path: %s\n", lpqscBuf->lpBinaryPathName);
if (lpqscBuf->lpLoadOrderGroup != NULL)
printf("Load order grp: %s\n", lpqscBuf->lpLoadOrderGroup);
if (lpqscBuf->dwTagId != 0)
printf("Tag ID: %ld\n", lpqscBuf->dwTagId);
if (lpqscBuf->lpDependencies != NULL)
printf("Dependencies: %s\n", lpqscBuf->lpDependencies);
if (lpqscBuf->lpServiceStartName != NULL)
printf("Start Name: %s\n", lpqscBuf->lpServiceStartName);
//~ if (lpqscBuf2->lpDescription != NULL)
//~ printf("Description: %s\n", lpqscBuf2->lpDescription);
}
//~ LocalFree(lpqscBuf2);
}
LocalFree(lpqscBuf);
} else {
dwStatus = GetLastError();
}
} else {
dwStatus = GetLastError();
}
if (hService != NULL) CloseServiceHandle(hService);
return dwStatus;
} // DriverStatus
/**-----------------------------------------------------**/
DWORD DriverStartType(LPSTR lpDriver, DWORD dwStartType) {
BOOL dwStatus = OKAY;
SC_HANDLE hService = NULL;
SC_LOCK sclLock;
LPQUERY_SERVICE_LOCK_STATUS lpqslsBuf;
DWORD dwBytesNeeded;
// Need to acquire database lock before reconfiguring.
sclLock = LockServiceDatabase(hSCMan);
// If the database cannot be locked, report the details.
if (sclLock == NULL) {
// Exit if the database is not locked by another process.
if (GetLastError() == ERROR_SERVICE_DATABASE_LOCKED) {
// Allocate a buffer to get details about the lock.
lpqslsBuf = (LPQUERY_SERVICE_LOCK_STATUS) LocalAlloc(
LPTR, sizeof(QUERY_SERVICE_LOCK_STATUS)+256);
if (lpqslsBuf != NULL) {
// Get and print the lock status information.
if (QueryServiceLockStatus(
hSCMan,
lpqslsBuf,
sizeof(QUERY_SERVICE_LOCK_STATUS)+256,
&dwBytesNeeded) )
{
if (lpqslsBuf->fIsLocked) {
printf("Locked by: %s, duration: %ld seconds\n",
lpqslsBuf->lpLockOwner,
lpqslsBuf->dwLockDuration
);
} else {
printf("No longer locked\n");
}
}
LocalFree(lpqslsBuf);
}
}
dwStatus = GetLastError();
} else {
// The database is locked, so it is safe to make changes.
// Open a handle to the service.
hService = OpenService(
hSCMan, // SCManager database
lpDriver, // name of service
SERVICE_CHANGE_CONFIG
); // need CHANGE access
if (hService != NULL) {
// Make the changes.
if (!ChangeServiceConfig(
hService, // handle of service
SERVICE_NO_CHANGE, // service type: no change
dwStartType, // change service start type
SERVICE_NO_CHANGE, // error control: no change
NULL, // binary path: no change
NULL, // load order group: no change
NULL, // tag ID: no change
NULL, // dependencies: no change
NULL, // account name: no change
NULL, // password: no change
NULL) ) // display name: no change
{
dwStatus = GetLastError();
}
}
// Release the database lock.
UnlockServiceDatabase(sclLock);
}
if (hService != NULL) CloseServiceHandle(hService);
return dwStatus;
} // DriverStartType
syntax highlighted by Code2HTML, v. 0.9.1