summaryrefslogtreecommitdiffstats
path: root/qemu/qga/service-win32.c
diff options
context:
space:
mode:
authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/qga/service-win32.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/qga/service-win32.c')
-rw-r--r--qemu/qga/service-win32.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/qemu/qga/service-win32.c b/qemu/qga/service-win32.c
new file mode 100644
index 000000000..aef41f04f
--- /dev/null
+++ b/qemu/qga/service-win32.c
@@ -0,0 +1,192 @@
+/*
+ * QEMU Guest Agent helpers for win32 service management
+ *
+ * Copyright IBM Corp. 2012
+ *
+ * Authors:
+ * Gal Hammer <ghammer@redhat.com>
+ * Michael Roth <mdroth@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <glib.h>
+#include <windows.h>
+#include "qga/service-win32.h"
+
+static int printf_win_error(const char *text)
+{
+ DWORD err = GetLastError();
+ char *message;
+ int n;
+
+ FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL,
+ err,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ (char *)&message, 0,
+ NULL);
+ n = fprintf(stderr, "%s. (Error: %d) %s", text, (int)err, message);
+ LocalFree(message);
+
+ return n;
+}
+
+/* Windows command line escaping. Based on
+ * <http://blogs.msdn.com/b/oldnewthing/archive/2010/09/17/10063629.aspx> and
+ * <http://msdn.microsoft.com/en-us/library/windows/desktop/17w5ykft%28v=vs.85%29.aspx>.
+ *
+ * The caller is responsible for initializing @buffer; prior contents are lost.
+ */
+static const char *win_escape_arg(const char *to_escape, GString *buffer)
+{
+ size_t backslash_count;
+ const char *c;
+
+ /* open with a double quote */
+ g_string_assign(buffer, "\"");
+
+ backslash_count = 0;
+ for (c = to_escape; *c != '\0'; ++c) {
+ switch (*c) {
+ case '\\':
+ /* The meaning depends on the first non-backslash character coming
+ * up.
+ */
+ ++backslash_count;
+ break;
+
+ case '"':
+ /* We must escape each pending backslash, then escape the double
+ * quote. This creates a case of "odd number of backslashes [...]
+ * followed by a double quotation mark".
+ */
+ while (backslash_count) {
+ --backslash_count;
+ g_string_append(buffer, "\\\\");
+ }
+ g_string_append(buffer, "\\\"");
+ break;
+
+ default:
+ /* Any pending backslashes are without special meaning, flush them.
+ * "Backslashes are interpreted literally, unless they immediately
+ * precede a double quotation mark."
+ */
+ while (backslash_count) {
+ --backslash_count;
+ g_string_append_c(buffer, '\\');
+ }
+ g_string_append_c(buffer, *c);
+ }
+ }
+
+ /* We're about to close with a double quote in string delimiter role.
+ * Double all pending backslashes, creating a case of "even number of
+ * backslashes [...] followed by a double quotation mark".
+ */
+ while (backslash_count) {
+ --backslash_count;
+ g_string_append(buffer, "\\\\");
+ }
+ g_string_append_c(buffer, '"');
+
+ return buffer->str;
+}
+
+int ga_install_service(const char *path, const char *logfile,
+ const char *state_dir)
+{
+ int ret = EXIT_FAILURE;
+ SC_HANDLE manager;
+ SC_HANDLE service;
+ TCHAR module_fname[MAX_PATH];
+ GString *esc;
+ GString *cmdline;
+ SERVICE_DESCRIPTION desc = { (char *)QGA_SERVICE_DESCRIPTION };
+
+ if (GetModuleFileName(NULL, module_fname, MAX_PATH) == 0) {
+ printf_win_error("No full path to service's executable");
+ return EXIT_FAILURE;
+ }
+
+ esc = g_string_new("");
+ cmdline = g_string_new("");
+
+ g_string_append_printf(cmdline, "%s -d",
+ win_escape_arg(module_fname, esc));
+
+ if (path) {
+ g_string_append_printf(cmdline, " -p %s", win_escape_arg(path, esc));
+ }
+ if (logfile) {
+ g_string_append_printf(cmdline, " -l %s -v",
+ win_escape_arg(logfile, esc));
+ }
+ if (state_dir) {
+ g_string_append_printf(cmdline, " -t %s",
+ win_escape_arg(state_dir, esc));
+ }
+
+ g_debug("service's cmdline: %s", cmdline->str);
+
+ manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ if (manager == NULL) {
+ printf_win_error("No handle to service control manager");
+ goto out_strings;
+ }
+
+ service = CreateService(manager, QGA_SERVICE_NAME, QGA_SERVICE_DISPLAY_NAME,
+ SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START,
+ SERVICE_ERROR_NORMAL, cmdline->str, NULL, NULL, NULL, NULL, NULL);
+ if (service == NULL) {
+ printf_win_error("Failed to install service");
+ goto out_manager;
+ }
+
+ ChangeServiceConfig2(service, SERVICE_CONFIG_DESCRIPTION, &desc);
+ fprintf(stderr, "Service was installed successfully.\n");
+ ret = EXIT_SUCCESS;
+ CloseServiceHandle(service);
+
+out_manager:
+ CloseServiceHandle(manager);
+
+out_strings:
+ g_string_free(cmdline, TRUE);
+ g_string_free(esc, TRUE);
+ return ret;
+}
+
+int ga_uninstall_service(void)
+{
+ SC_HANDLE manager;
+ SC_HANDLE service;
+
+ manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ if (manager == NULL) {
+ printf_win_error("No handle to service control manager");
+ return EXIT_FAILURE;
+ }
+
+ service = OpenService(manager, QGA_SERVICE_NAME, DELETE);
+ if (service == NULL) {
+ printf_win_error("No handle to service");
+ CloseServiceHandle(manager);
+ return EXIT_FAILURE;
+ }
+
+ if (DeleteService(service) == FALSE) {
+ printf_win_error("Failed to delete service");
+ } else {
+ fprintf(stderr, "Service was deleted successfully.\n");
+ }
+
+ CloseServiceHandle(service);
+ CloseServiceHandle(manager);
+
+ return EXIT_SUCCESS;
+}