s3-rpc_cli: add winreg_get_core_driver()

Guenther

Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

source3/rpc_client/cli_winreg_spoolss.c

@@ -34,6 +34,7 @@
 
 #define TOP_LEVEL_PRINT_KEY "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Print"
 #define TOP_LEVEL_PRINT_PRINTERS_KEY TOP_LEVEL_PRINT_KEY "\\Printers"
+#define TOP_LEVEL_PRINT_PACKAGEINSTALLATION_KEY TOP_LEVEL_PRINT_KEY "\\PackageInstallation"
 #define TOP_LEVEL_CONTROL_KEY "SYSTEM\\CurrentControlSet\\Control\\Print"
 #define TOP_LEVEL_CONTROL_FORMS_KEY TOP_LEVEL_CONTROL_KEY "\\Forms"
 
@@ -3968,3 +3969,165 @@ done:
 	TALLOC_FREE(tmp_ctx);
 	return result;
 }
+
+WERROR winreg_get_core_driver(TALLOC_CTX *mem_ctx,
+			      struct dcerpc_binding_handle *winreg_handle,
+			      const char *architecture,
+			      const struct GUID *core_driver_guid,
+			      struct spoolss_CorePrinterDriver **_core_printer_driver)
+{
+	uint32_t access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
+	struct policy_handle hive_hnd, key_hnd;
+	struct spoolss_CorePrinterDriver *c;
+	struct spoolss_PrinterEnumValues *enum_values = NULL;
+	struct spoolss_PrinterEnumValues *v;
+	uint32_t num_values = 0;
+	TALLOC_CTX *tmp_ctx;
+	WERROR result;
+	NTSTATUS status;
+	const char *path;
+	const char *guid_str;
+	uint32_t i;
+	const char **enum_names = NULL;
+	enum winreg_Type *enum_types = NULL;
+	DATA_BLOB *enum_data_blobs = NULL;
+
+	ZERO_STRUCT(hive_hnd);
+	ZERO_STRUCT(key_hnd);
+
+	tmp_ctx = talloc_stackframe();
+	if (tmp_ctx == NULL) {
+		return WERR_NOT_ENOUGH_MEMORY;
+	}
+
+	path = talloc_asprintf(tmp_ctx, "%s\\%s\\CorePrinterDrivers",
+					TOP_LEVEL_PRINT_PACKAGEINSTALLATION_KEY,
+					architecture);
+	if (path == NULL) {
+		result = WERR_NOT_ENOUGH_MEMORY;
+		goto done;
+	}
+
+	guid_str = GUID_string2(tmp_ctx, core_driver_guid);
+	if (guid_str == NULL) {
+		result = WERR_NOT_ENOUGH_MEMORY;
+		goto done;
+	}
+
+	result = winreg_printer_openkey(tmp_ctx,
+					winreg_handle,
+					path,
+					guid_str, /* key */
+					false,
+					access_mask,
+					&hive_hnd,
+					&key_hnd);
+
+	if (!W_ERROR_IS_OK(result)) {
+		DEBUG(5, ("winreg_get_core_driver: "
+			  "Could not open core driver key (%s,%s): %s\n",
+			  guid_str, architecture, win_errstr(result)));
+		goto done;
+	}
+
+	status = dcerpc_winreg_enumvals(tmp_ctx,
+				        winreg_handle,
+				        &key_hnd,
+				        &num_values,
+				        &enum_names,
+					&enum_types,
+					&enum_data_blobs,
+					&result);
+	if (!NT_STATUS_IS_OK(status)){
+		result = ntstatus_to_werror(status);
+	}
+
+	if (!W_ERROR_IS_OK(result)) {
+		DEBUG(0, ("winreg_get_core_driver: "
+			  "Could not enumerate values for (%s,%s): %s\n",
+			  guid_str, architecture, win_errstr(result)));
+		goto done;
+	}
+
+	enum_values = talloc_zero_array(tmp_ctx,
+					struct spoolss_PrinterEnumValues,
+					num_values);
+	if (enum_values == NULL){
+		result = WERR_NOT_ENOUGH_MEMORY;
+		goto done;
+	}
+
+	for (i = 0; i < num_values; i++){
+		enum_values[i].value_name = enum_names[i];
+		enum_values[i].value_name_len = strlen_m_term(enum_names[i]) * 2;
+		enum_values[i].type = enum_types[i];
+		enum_values[i].data_length = enum_data_blobs[i].length;
+		enum_values[i].data = NULL;
+		if (enum_values[i].data_length != 0){
+			enum_values[i].data = &enum_data_blobs[i];
+		}
+	}
+
+	c = talloc_zero(tmp_ctx, struct spoolss_CorePrinterDriver);
+	if (c == NULL) {
+		result = WERR_NOT_ENOUGH_MEMORY;
+		goto done;
+	}
+
+	c->core_driver_guid = *core_driver_guid;
+
+	result = WERR_OK;
+
+	for (i = 0; i < num_values; i++) {
+		const char *tmp_str;
+
+		v = &enum_values[i];
+
+		result = winreg_enumval_to_sz(c, v,
+					      "InfPath",
+					      &c->szPackageID);
+		CHECK_ERROR(result);
+
+		result = winreg_enumval_to_sz(c, v,
+					      "DriverDate",
+					      &tmp_str);
+		if (W_ERROR_IS_OK(result)) {
+			result = winreg_printer_date_to_NTTIME(tmp_str,
+						&c->driver_date);
+		}
+		CHECK_ERROR(result);
+
+		result = winreg_enumval_to_sz(c, v,
+					      "DriverVersion",
+					      &tmp_str);
+		if (W_ERROR_IS_OK(result)) {
+			result = winreg_printer_ver_to_qword(tmp_str,
+						&c->driver_version);
+		}
+		CHECK_ERROR(result);
+	}
+
+	if (!W_ERROR_IS_OK(result)) {
+		DEBUG(0, ("winreg_enumval_to_TYPE() failed "
+			  "for %s: %s\n", v->value_name,
+			  win_errstr(result)));
+		goto done;
+	}
+
+	*_core_printer_driver = talloc_steal(mem_ctx, c);
+	result = WERR_OK;
+done:
+	if (winreg_handle != NULL) {
+		WERROR ignore;
+
+		if (is_valid_policy_hnd(&key_hnd)) {
+			dcerpc_winreg_CloseKey(winreg_handle, tmp_ctx, &key_hnd, &ignore);
+		}
+		if (is_valid_policy_hnd(&hive_hnd)) {
+			dcerpc_winreg_CloseKey(winreg_handle, tmp_ctx, &hive_hnd, &ignore);
+		}
+	}
+
+	TALLOC_FREE(tmp_ctx);
+	return result;
+}

source3/rpc_client/cli_winreg_spoolss.h

@@ -599,5 +599,27 @@ WERROR winreg_get_driver_list(TALLOC_CTX *mem_ctx,
 			      uint32_t version,
 			      uint32_t *num_drivers,
 			      const char ***drivers);
+/**
+ * @brief This function gets a core printer driver
+ *
+ * @param[in]  mem_ctx	       A talloc memory context.
+ *
+ * @param[in]  b The dcerpc binding handle
+ *
+ * @param[in]  architecture    The architecture type.
+ *
+ * @param[in]  core_driver_guid The core driver guid.
+ *
+ * @param[out] core_printer_driver The returned core printer driver definiton
+ *
+ * @return              On success WERR_OK, a corresponding DOS error is
+ *                      something went wrong.
+ */
+
+WERROR winreg_get_core_driver(TALLOC_CTX *mem_ctx,
+			      struct dcerpc_binding_handle *winreg_handle,
+			      const char *architecture,
+			      const struct GUID *core_driver_guid,
+			      struct spoolss_CorePrinterDriver **_core_printer_driver);
 
 #endif /* _RPC_CLIENT_CLI_WINREG_SPOOLSS_H_ */