services: Load list of services from registry at startup.
Mikołaj Zalewski
mikolaj at zalewski.pl
Sat Mar 15 04:38:45 CDT 2008
---
programs/services/Makefile.in | 4 +-
programs/services/services.c | 176 +++++++++++++++++++++++++++++++++++++++++
programs/services/services.h | 48 +++++++++++
programs/services/utils.c | 147 ++++++++++++++++++++++++++++++++++
4 files changed, 374 insertions(+), 1 deletions(-)
create mode 100644 programs/services/services.h
create mode 100644 programs/services/utils.c
diff --git a/programs/services/Makefile.in b/programs/services/Makefile.in
index 52c69e0..67c3db5 100644
--- a/programs/services/Makefile.in
+++ b/programs/services/Makefile.in
@@ -5,9 +5,11 @@ VPATH = @srcdir@
MODULE = services.exe
APPMODE = -mconsole
IMPORTS = kernel32
+IMPORTS = advapi32 kernel32
C_SRCS = \
- services.c
+ services.c \
+ utils.c
@MAKE_PROG_RULES@
diff --git a/programs/services/services.c b/programs/services/services.c
index 04532d1..72e93ab 100644
--- a/programs/services/services.c
+++ b/programs/services/services.c
@@ -21,8 +21,184 @@
#define WIN32_LEAN_AND_MEAN
#include <stdarg.h>
+#include <windows.h>
+#include <winsvc.h>
+
+#include "wine/list.h"
+#include "wine/unicode.h"
+#include "wine/debug.h"
+
+#include "services.h"
+
+#define MAX_SERVICE_NAME 260
+
+WINE_DEFAULT_DEBUG_CHANNEL(service);
+
+static struct list g_services;
+
+/* Registry constants */
+static const WCHAR SZ_SERVICES_KEY[] = { 'S','y','s','t','e','m','\\',
+ 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
+ 'S','e','r','v','i','c','e','s',0 };
+
+/* Service key values names */
+static const WCHAR SZ_DISPLAY_NAME[] = {'D','i','s','p','l','a','y','N','a','m','e',0 };
+static const WCHAR SZ_TYPE[] = {'T','y','p','e',0 };
+static const WCHAR SZ_START[] = {'S','t','a','r','t',0 };
+static const WCHAR SZ_ERROR[] = {'E','r','r','o','r','C','o','n','t','r','o','l',0 };
+static const WCHAR SZ_IMAGE_PATH[] = {'I','m','a','g','e','P','a','t','h',0};
+static const WCHAR SZ_GROUP[] = {'G','r','o','u','p',0};
+static const WCHAR SZ_DEPEND_ON_SERVICE[] = {'D','e','p','e','n','d','O','n','S','e','r','v','i','c','e',0};
+static const WCHAR SZ_DEPEND_ON_GROUP[] = {'D','e','p','e','n','d','O','n','G','r','o','u','p',0};
+static const WCHAR SZ_OBJECT_NAME[] = {'O','b','j','e','c','t','N','a','m','e',0};
+static const WCHAR SZ_TAG[] = {'T','a','g',0};
+static const WCHAR SZ_DESCRIPTION[] = {'D','e','s','c','r','i','p','t','i','o','n',0};
+
+
+static void free_service_entry(struct service_entry *entry)
+{
+ HeapFree(GetProcessHeap(), 0, entry->name);
+ HeapFree(GetProcessHeap(), 0, entry->config.lpBinaryPathName);
+ HeapFree(GetProcessHeap(), 0, entry->config.lpDependencies);
+ HeapFree(GetProcessHeap(), 0, entry->config.lpLoadOrderGroup);
+ HeapFree(GetProcessHeap(), 0, entry->config.lpServiceStartName);
+ HeapFree(GetProcessHeap(), 0, entry->config.lpDisplayName);
+ HeapFree(GetProcessHeap(), 0, entry->description);
+ HeapFree(GetProcessHeap(), 0, entry);
+}
+
+static DWORD load_service_config(HKEY hKey, struct service_entry *entry)
+{
+ DWORD err;
+ WCHAR *wptr;
+
+ if ((err = load_reg_string(hKey, SZ_IMAGE_PATH, TRUE, &entry->config.lpBinaryPathName)) != 0)
+ return err;
+ if ((err = load_reg_string(hKey, SZ_GROUP, 0, &entry->config.lpLoadOrderGroup)) != 0)
+ return err;
+ if ((err = load_reg_string(hKey, SZ_OBJECT_NAME, TRUE, &entry->config.lpServiceStartName)) != 0)
+ return err;
+ if ((err = load_reg_string(hKey, SZ_DISPLAY_NAME, 0, &entry->config.lpDisplayName)) != 0)
+ return err;
+ if ((err = load_reg_string(hKey, SZ_DESCRIPTION, 0, &entry->description)) != 0)
+ return err;
+ if ((err = load_reg_multisz(hKey, SZ_DEPEND_ON_SERVICE, &entry->dependOnServices)) != 0)
+ return err;
+ if ((err = load_reg_multisz(hKey, SZ_DEPEND_ON_GROUP, &entry->dependOnGroups)) != 0)
+ return err;
+
+ if ((err = load_reg_dword(hKey, SZ_TYPE, &entry->config.dwServiceType)) != 0)
+ return err;
+ if ((err = load_reg_dword(hKey, SZ_START, &entry->config.dwStartType)) != 0)
+ return err;
+ if ((err = load_reg_dword(hKey, SZ_ERROR, &entry->config.dwErrorControl)) != 0)
+ return err;
+ if ((err = load_reg_dword(hKey, SZ_TAG, &entry->config.dwTagId)) != 0)
+ return err;
+
+ WINE_TRACE("Image path = %s\n", wine_dbgstr_w(entry->config.lpBinaryPathName) );
+ WINE_TRACE("Group = %s\n", wine_dbgstr_w(entry->config.lpLoadOrderGroup) );
+ WINE_TRACE("Service account name = %s\n", wine_dbgstr_w(entry->config.lpServiceStartName) );
+ WINE_TRACE("Display name = %s\n", wine_dbgstr_w(entry->config.lpDisplayName) );
+ WINE_TRACE("Service dependancies : %s\n", entry->dependOnServices[0] ? "" : "(none)");
+ for (wptr = entry->dependOnServices; *wptr; wptr += strlenW(wptr) + 1)
+ WINE_TRACE(" * %s\n", wine_dbgstr_w(wptr));
+ WINE_TRACE("Group dependancies : %s\n", entry->dependOnGroups[0] ? "" : "(none)");
+ for (wptr = entry->dependOnGroups; *wptr; wptr += strlenW(wptr) + 1)
+ WINE_TRACE(" * %s\n", wine_dbgstr_w(wptr));
+
+ return ERROR_SUCCESS;
+}
+
+static BOOL validate_service_config(struct service_entry *entry)
+{
+ if (entry->config.dwServiceType & SERVICE_WIN32 && (entry->config.lpBinaryPathName == NULL || !entry->config.lpBinaryPathName[0]))
+ {
+ WINE_ERR("Service %s is Win32 but have no image path set\n", wine_dbgstr_w(entry->name));
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static DWORD load_services(void)
+{
+ HKEY hServicesRootKey;
+ DWORD err;
+ int i;
+
+ if ((err = RegCreateKeyExW(HKEY_LOCAL_MACHINE, SZ_SERVICES_KEY, 0, NULL,
+ REG_OPTION_NON_VOLATILE, KEY_READ, NULL,
+ &hServicesRootKey, NULL)) != ERROR_SUCCESS)
+ {
+ WINE_ERR("Couldn't open services key\n");
+ return err;
+ }
+
+ for (i = 0; TRUE; i++)
+ {
+ WCHAR szName[MAX_SERVICE_NAME];
+ struct service_entry *entry;
+ HKEY hServiceKey;
+
+ err = RegEnumKeyW(hServicesRootKey, i, szName, MAX_SERVICE_NAME);
+ if (err == ERROR_NO_MORE_ITEMS)
+ break;
+
+ if (err != 0)
+ {
+ WINE_ERR("Error %d reading key %d name - skipping\n", err, i);
+ continue;
+ }
+
+ entry = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*entry));
+ entry->name = strdupW(szName);
+
+ WINE_TRACE("Loading service %s\n", wine_dbgstr_w(szName));
+ err = RegOpenKeyExW(hServicesRootKey, szName, 0, KEY_READ | KEY_WRITE, &hServiceKey);
+ if (err == ERROR_SUCCESS)
+ {
+ err = load_service_config(hServiceKey, entry);
+ RegCloseKey(hServiceKey);
+ }
+
+ if (err != ERROR_SUCCESS)
+ {
+ WINE_ERR("Error %d reading registry key for service %s - skipping\n", err, wine_dbgstr_w(szName));
+ free_service_entry(entry);
+ continue;
+ }
+
+ if (entry->config.dwServiceType == 0)
+ {
+ /* Maybe an application only wrote some configuration in the service key. Continue silently */
+ WINE_TRACE("Even the service type not set for service %s - skipping\n", wine_dbgstr_w(szName));
+ free_service_entry(entry);
+ continue;
+ }
+
+ if (!validate_service_config(entry))
+ {
+ WINE_ERR("Invalid configuration of service %s - skipping\n", wine_dbgstr_w(szName));
+ free_service_entry(entry);
+ continue;
+ }
+
+ entry->status.dwServiceType = entry->config.dwServiceType;
+ entry->status.dwCurrentState = SERVICE_STOPPED;
+ entry->status.dwWin32ExitCode = ERROR_SERVICE_NEVER_STARTED;
+ /* all other fields are zero */
+
+ list_add_tail(&g_services, &entry->entry);
+ }
+ RegCloseKey(hServicesRootKey);
+ return ERROR_SUCCESS;
+}
int main(int argc, char *argv[])
{
+ DWORD err;
+ list_init(&g_services);
+ if ((err = load_services()) != ERROR_SUCCESS)
+ return err;
return 0;
}
diff --git a/programs/services/services.h b/programs/services/services.h
new file mode 100644
index 0000000..7b7c3c1
--- /dev/null
+++ b/programs/services/services.h
@@ -0,0 +1,48 @@
+/*
+ * Services.exe - include file
+ *
+ * Copyright 2007 Google (Mikolaj Zalewski)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef WINE_PROGRAMS_UTILS_H_
+#define WINE_PROGRAMS_UTILS_H_
+
+#include "wine/list.h"
+
+struct service_entry
+{
+ struct list entry;
+ LPWSTR name;
+ SERVICE_STATUS_PROCESS status;
+ QUERY_SERVICE_CONFIGW config;
+ LPWSTR description;
+ LPWSTR dependOnServices;
+ LPWSTR dependOnGroups;
+};
+
+extern HANDLE g_hStartedEvent;
+
+DWORD RPC_MainLoop(void);
+
+/* from utils.c */
+LPWSTR strdupW(LPCWSTR str);
+
+DWORD load_reg_string(HKEY hKey, LPCWSTR szValue, BOOL bExpand, LPWSTR *output);
+DWORD load_reg_multisz(HKEY hKey, LPCWSTR szValue, LPWSTR *output);
+DWORD load_reg_dword(HKEY hKey, LPCWSTR szValue, DWORD *output);
+
+#endif /*WINE_PROGRAMS_UTILS_H_*/
diff --git a/programs/services/utils.c b/programs/services/utils.c
new file mode 100644
index 0000000..cc03c45
--- /dev/null
+++ b/programs/services/utils.c
@@ -0,0 +1,147 @@
+/*
+ * Services.exe - some utility functions
+ *
+ * Copyright 2007 Google (Mikolaj Zalewski)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#define WIN32_LEAN_AND_MEAN
+
+#include <stdarg.h>
+#include <windows.h>
+
+#include "wine/unicode.h"
+#include "wine/debug.h"
+#include "services.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(service);
+
+LPWSTR strdupW(LPCWSTR str)
+{
+ int len = strlenW(str);
+ WCHAR *buf = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*(len+1));
+ if (buf == NULL)
+ return NULL;
+ strcpyW(buf, str);
+ return buf;
+}
+
+DWORD load_reg_string(HKEY hKey, LPCWSTR szValue, BOOL bExpand, LPWSTR *output)
+{
+ DWORD size, type;
+ LPWSTR buf = NULL;
+ DWORD err;
+
+ *output = NULL;
+ if ((err = RegQueryValueExW(hKey, szValue, 0, &type, NULL, &size)) != 0)
+ {
+ if (err == ERROR_FILE_NOT_FOUND)
+ return ERROR_SUCCESS;
+ goto failed;
+ }
+ if (!(type == REG_SZ || (type == REG_EXPAND_SZ && bExpand)))
+ {
+ err = ERROR_INVALID_DATATYPE;
+ goto failed;
+ }
+ buf = HeapAlloc(GetProcessHeap(), 0, size + sizeof(WCHAR));
+ if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)buf, &size)) != 0)
+ goto failed;
+ buf[size/sizeof(WCHAR)] = 0;
+
+ if (type == REG_EXPAND_SZ)
+ {
+ LPWSTR str;
+ DWORD size = ExpandEnvironmentStringsW(buf, NULL, 0);
+ if (size == 0)
+ {
+ err = GetLastError();
+ goto failed;
+ }
+ str = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR));
+ ExpandEnvironmentStringsW(buf, str, size);
+ HeapFree(GetProcessHeap(), 0, buf);
+ *output = str;
+ }
+ else
+ *output = buf;
+ return ERROR_SUCCESS;
+
+failed:
+ WINE_ERR("Error %d while reading value %s\n", err, wine_dbgstr_w(szValue));
+ HeapFree(GetProcessHeap(), 0, buf);
+ return err;
+}
+
+DWORD load_reg_multisz(HKEY hKey, LPCWSTR szValue, LPWSTR *output)
+{
+ DWORD size, type;
+ LPWSTR buf = NULL;
+ DWORD err;
+
+ *output = NULL;
+ if ((err = RegQueryValueExW(hKey, szValue, 0, &type, NULL, &size)) != 0)
+ {
+ if (err == ERROR_FILE_NOT_FOUND)
+ {
+ *output = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WCHAR));
+ return ERROR_SUCCESS;
+ }
+ goto failed;
+ }
+ if (type != REG_MULTI_SZ)
+ {
+ err = ERROR_INVALID_DATATYPE;
+ goto failed;
+ }
+ buf = HeapAlloc(GetProcessHeap(), 0, size + 2*sizeof(WCHAR));
+ if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)buf, &size)) != 0)
+ goto failed;
+ buf[size/sizeof(WCHAR)] = 0;
+ buf[size/sizeof(WCHAR) + 1] = 0;
+ *output = buf;
+ return ERROR_SUCCESS;
+
+failed:
+ WINE_ERR("Error %d while reading value %s\n", err, wine_dbgstr_w(szValue));
+ HeapFree(GetProcessHeap(), 0, buf);
+ return err;
+}
+
+DWORD load_reg_dword(HKEY hKey, LPCWSTR szValue, DWORD *output)
+{
+ DWORD size, type;
+ DWORD err;
+
+ *output = 0;
+ size = sizeof(DWORD);
+ if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)output, &size)) != 0)
+ {
+ if (err == ERROR_FILE_NOT_FOUND)
+ return ERROR_SUCCESS;
+ goto failed;
+ }
+ if (type != REG_DWORD || size != sizeof(DWORD))
+ {
+ err = ERROR_INVALID_DATATYPE;
+ goto failed;
+ }
+ return ERROR_SUCCESS;
+
+failed:
+ WINE_ERR("Error %d while reading value %s\n", err, wine_dbgstr_w(szValue));
+ return err;
+}
--
1.5.3.GIT
--------------050100030805030601070105--
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