205 lines
7.8 KiB
C
205 lines
7.8 KiB
C
/*
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* Services - controls services keeps track of their state
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*
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* Copyright 2007 Google (Mikolaj Zalewski)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <stdarg.h>
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#include <windows.h>
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#include <winsvc.h>
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#include "wine/list.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "services.h"
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#define MAX_SERVICE_NAME 260
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WINE_DEFAULT_DEBUG_CHANNEL(service);
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static struct list g_services;
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/* Registry constants */
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static const WCHAR SZ_SERVICES_KEY[] = { 'S','y','s','t','e','m','\\',
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'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
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'S','e','r','v','i','c','e','s',0 };
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/* Service key values names */
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static const WCHAR SZ_DISPLAY_NAME[] = {'D','i','s','p','l','a','y','N','a','m','e',0 };
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static const WCHAR SZ_TYPE[] = {'T','y','p','e',0 };
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static const WCHAR SZ_START[] = {'S','t','a','r','t',0 };
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static const WCHAR SZ_ERROR[] = {'E','r','r','o','r','C','o','n','t','r','o','l',0 };
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static const WCHAR SZ_IMAGE_PATH[] = {'I','m','a','g','e','P','a','t','h',0};
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static const WCHAR SZ_GROUP[] = {'G','r','o','u','p',0};
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static const WCHAR SZ_DEPEND_ON_SERVICE[] = {'D','e','p','e','n','d','O','n','S','e','r','v','i','c','e',0};
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static const WCHAR SZ_DEPEND_ON_GROUP[] = {'D','e','p','e','n','d','O','n','G','r','o','u','p',0};
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static const WCHAR SZ_OBJECT_NAME[] = {'O','b','j','e','c','t','N','a','m','e',0};
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static const WCHAR SZ_TAG[] = {'T','a','g',0};
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static const WCHAR SZ_DESCRIPTION[] = {'D','e','s','c','r','i','p','t','i','o','n',0};
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static void free_service_entry(struct service_entry *entry)
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{
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HeapFree(GetProcessHeap(), 0, entry->name);
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HeapFree(GetProcessHeap(), 0, entry->config.lpBinaryPathName);
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HeapFree(GetProcessHeap(), 0, entry->config.lpDependencies);
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HeapFree(GetProcessHeap(), 0, entry->config.lpLoadOrderGroup);
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HeapFree(GetProcessHeap(), 0, entry->config.lpServiceStartName);
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HeapFree(GetProcessHeap(), 0, entry->config.lpDisplayName);
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HeapFree(GetProcessHeap(), 0, entry->description);
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HeapFree(GetProcessHeap(), 0, entry);
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}
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static DWORD load_service_config(HKEY hKey, struct service_entry *entry)
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{
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DWORD err;
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WCHAR *wptr;
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if ((err = load_reg_string(hKey, SZ_IMAGE_PATH, TRUE, &entry->config.lpBinaryPathName)) != 0)
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return err;
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if ((err = load_reg_string(hKey, SZ_GROUP, 0, &entry->config.lpLoadOrderGroup)) != 0)
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return err;
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if ((err = load_reg_string(hKey, SZ_OBJECT_NAME, TRUE, &entry->config.lpServiceStartName)) != 0)
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return err;
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if ((err = load_reg_string(hKey, SZ_DISPLAY_NAME, 0, &entry->config.lpDisplayName)) != 0)
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return err;
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if ((err = load_reg_string(hKey, SZ_DESCRIPTION, 0, &entry->description)) != 0)
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return err;
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if ((err = load_reg_multisz(hKey, SZ_DEPEND_ON_SERVICE, &entry->dependOnServices)) != 0)
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return err;
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if ((err = load_reg_multisz(hKey, SZ_DEPEND_ON_GROUP, &entry->dependOnGroups)) != 0)
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return err;
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if ((err = load_reg_dword(hKey, SZ_TYPE, &entry->config.dwServiceType)) != 0)
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return err;
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if ((err = load_reg_dword(hKey, SZ_START, &entry->config.dwStartType)) != 0)
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return err;
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if ((err = load_reg_dword(hKey, SZ_ERROR, &entry->config.dwErrorControl)) != 0)
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return err;
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if ((err = load_reg_dword(hKey, SZ_TAG, &entry->config.dwTagId)) != 0)
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return err;
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WINE_TRACE("Image path = %s\n", wine_dbgstr_w(entry->config.lpBinaryPathName) );
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WINE_TRACE("Group = %s\n", wine_dbgstr_w(entry->config.lpLoadOrderGroup) );
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WINE_TRACE("Service account name = %s\n", wine_dbgstr_w(entry->config.lpServiceStartName) );
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WINE_TRACE("Display name = %s\n", wine_dbgstr_w(entry->config.lpDisplayName) );
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WINE_TRACE("Service dependancies : %s\n", entry->dependOnServices[0] ? "" : "(none)");
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for (wptr = entry->dependOnServices; *wptr; wptr += strlenW(wptr) + 1)
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WINE_TRACE(" * %s\n", wine_dbgstr_w(wptr));
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WINE_TRACE("Group dependancies : %s\n", entry->dependOnGroups[0] ? "" : "(none)");
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for (wptr = entry->dependOnGroups; *wptr; wptr += strlenW(wptr) + 1)
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WINE_TRACE(" * %s\n", wine_dbgstr_w(wptr));
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return ERROR_SUCCESS;
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}
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static BOOL validate_service_config(struct service_entry *entry)
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{
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if (entry->config.dwServiceType & SERVICE_WIN32 && (entry->config.lpBinaryPathName == NULL || !entry->config.lpBinaryPathName[0]))
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{
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WINE_ERR("Service %s is Win32 but have no image path set\n", wine_dbgstr_w(entry->name));
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return FALSE;
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}
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return TRUE;
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}
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static DWORD load_services(void)
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{
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HKEY hServicesRootKey;
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DWORD err;
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int i;
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if ((err = RegCreateKeyExW(HKEY_LOCAL_MACHINE, SZ_SERVICES_KEY, 0, NULL,
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REG_OPTION_NON_VOLATILE, KEY_READ, NULL,
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&hServicesRootKey, NULL)) != ERROR_SUCCESS)
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{
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WINE_ERR("Couldn't open services key\n");
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return err;
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}
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for (i = 0; TRUE; i++)
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{
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WCHAR szName[MAX_SERVICE_NAME];
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struct service_entry *entry;
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HKEY hServiceKey;
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err = RegEnumKeyW(hServicesRootKey, i, szName, MAX_SERVICE_NAME);
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if (err == ERROR_NO_MORE_ITEMS)
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break;
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if (err != 0)
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{
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WINE_ERR("Error %d reading key %d name - skipping\n", err, i);
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continue;
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}
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entry = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*entry));
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entry->name = strdupW(szName);
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WINE_TRACE("Loading service %s\n", wine_dbgstr_w(szName));
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err = RegOpenKeyExW(hServicesRootKey, szName, 0, KEY_READ | KEY_WRITE, &hServiceKey);
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if (err == ERROR_SUCCESS)
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{
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err = load_service_config(hServiceKey, entry);
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RegCloseKey(hServiceKey);
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}
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if (err != ERROR_SUCCESS)
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{
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WINE_ERR("Error %d reading registry key for service %s - skipping\n", err, wine_dbgstr_w(szName));
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free_service_entry(entry);
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continue;
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}
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if (entry->config.dwServiceType == 0)
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{
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/* Maybe an application only wrote some configuration in the service key. Continue silently */
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WINE_TRACE("Even the service type not set for service %s - skipping\n", wine_dbgstr_w(szName));
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free_service_entry(entry);
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continue;
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}
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if (!validate_service_config(entry))
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{
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WINE_ERR("Invalid configuration of service %s - skipping\n", wine_dbgstr_w(szName));
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free_service_entry(entry);
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continue;
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}
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entry->status.dwServiceType = entry->config.dwServiceType;
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entry->status.dwCurrentState = SERVICE_STOPPED;
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entry->status.dwWin32ExitCode = ERROR_SERVICE_NEVER_STARTED;
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/* all other fields are zero */
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list_add_tail(&g_services, &entry->entry);
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}
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RegCloseKey(hServicesRootKey);
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return ERROR_SUCCESS;
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}
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int main(int argc, char *argv[])
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{
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DWORD err;
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list_init(&g_services);
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if ((err = load_services()) != ERROR_SUCCESS)
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return err;
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return 0;
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}
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