Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/channels/rdpsnd/client/fake/CMakeLists.txt

@@ -0,0 +1,27 @@
+# FreeRDP: A Remote Desktop Protocol Implementation
+# FreeRDP cmake build script
+#
+# Copyright 2019 Armin Novak <armin.novak@thincast.com>
+# Copyright 2019 Thincast Technologies GmbH
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+define_channel_client_subsystem("rdpsnd" "fake" "")
+
+set(${MODULE_PREFIX}_SRCS rdpsnd_fake.c)
+
+set(${MODULE_PREFIX}_LIBS winpr freerdp)
+
+include_directories(..)
+
+add_channel_client_subsystem_library(${MODULE_PREFIX} ${MODULE_NAME} ${CHANNEL_NAME} "" TRUE "")

third_party/FreeRDP/channels/rdpsnd/client/fake/rdpsnd_fake.c

@@ -0,0 +1,153 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * Audio Output Virtual Channel
+ *
+ * Copyright 2019 Armin Novak <armin.novak@thincast.com>
+ * Copyright 2019 Thincast Technologies GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <freerdp/config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <winpr/crt.h>
+#include <winpr/stream.h>
+#include <winpr/cmdline.h>
+
+#include <freerdp/types.h>
+#include <freerdp/settings.h>
+
+#include "rdpsnd_main.h"
+
+typedef struct
+{
+	rdpsndDevicePlugin device;
+} rdpsndFakePlugin;
+
+static BOOL rdpsnd_fake_open(WINPR_ATTR_UNUSED rdpsndDevicePlugin* device,
+                             WINPR_ATTR_UNUSED const AUDIO_FORMAT* format,
+                             WINPR_ATTR_UNUSED UINT32 latency)
+{
+	return TRUE;
+}
+
+static void rdpsnd_fake_close(WINPR_ATTR_UNUSED rdpsndDevicePlugin* device)
+{
+}
+
+static BOOL rdpsnd_fake_set_volume(WINPR_ATTR_UNUSED rdpsndDevicePlugin* device,
+                                   WINPR_ATTR_UNUSED UINT32 value)
+{
+	return TRUE;
+}
+
+static void rdpsnd_fake_free(rdpsndDevicePlugin* device)
+{
+	rdpsndFakePlugin* fake = (rdpsndFakePlugin*)device;
+
+	if (!fake)
+		return;
+
+	free(fake);
+}
+
+static BOOL rdpsnd_fake_format_supported(WINPR_ATTR_UNUSED rdpsndDevicePlugin* device,
+                                         WINPR_ATTR_UNUSED const AUDIO_FORMAT* format)
+{
+	return TRUE;
+}
+
+static UINT rdpsnd_fake_play(WINPR_ATTR_UNUSED rdpsndDevicePlugin* device,
+                             WINPR_ATTR_UNUSED const BYTE* data, WINPR_ATTR_UNUSED size_t size)
+{
+	return CHANNEL_RC_OK;
+}
+
+/**
+ * Function description
+ *
+ * @return 0 on success, otherwise a Win32 error code
+ */
+static UINT rdpsnd_fake_parse_addin_args(rdpsndFakePlugin* fake, const ADDIN_ARGV* args)
+{
+	int status = 0;
+	DWORD flags = 0;
+	const COMMAND_LINE_ARGUMENT_A* arg = nullptr;
+	COMMAND_LINE_ARGUMENT_A rdpsnd_fake_args[] = { { nullptr, 0, nullptr, nullptr, nullptr, -1,
+		                                             nullptr, nullptr } };
+	flags =
+	    COMMAND_LINE_SIGIL_NONE | COMMAND_LINE_SEPARATOR_COLON | COMMAND_LINE_IGN_UNKNOWN_KEYWORD;
+	status = CommandLineParseArgumentsA(args->argc, args->argv, rdpsnd_fake_args, flags, fake,
+	                                    nullptr, nullptr);
+
+	if (status < 0)
+		return ERROR_INVALID_DATA;
+
+	arg = rdpsnd_fake_args;
+
+	do
+	{
+		if (!(arg->Flags & COMMAND_LINE_VALUE_PRESENT))
+			continue;
+
+		CommandLineSwitchStart(arg) CommandLineSwitchEnd(arg)
+	} while ((arg = CommandLineFindNextArgumentA(arg)) != nullptr);
+
+	return CHANNEL_RC_OK;
+}
+
+/**
+ * Function description
+ *
+ * @return 0 on success, otherwise a Win32 error code
+ */
+FREERDP_ENTRY_POINT(UINT VCAPITYPE fake_freerdp_rdpsnd_client_subsystem_entry(
+    PFREERDP_RDPSND_DEVICE_ENTRY_POINTS pEntryPoints))
+{
+	const ADDIN_ARGV* args = nullptr;
+	rdpsndFakePlugin* fake = nullptr;
+	UINT ret = CHANNEL_RC_OK;
+	fake = (rdpsndFakePlugin*)calloc(1, sizeof(rdpsndFakePlugin));
+
+	if (!fake)
+		return CHANNEL_RC_NO_MEMORY;
+
+	fake->device.Open = rdpsnd_fake_open;
+	fake->device.FormatSupported = rdpsnd_fake_format_supported;
+	fake->device.SetVolume = rdpsnd_fake_set_volume;
+	fake->device.Play = rdpsnd_fake_play;
+	fake->device.Close = rdpsnd_fake_close;
+	fake->device.Free = rdpsnd_fake_free;
+	args = pEntryPoints->args;
+
+	if (args->argc > 1)
+	{
+		ret = rdpsnd_fake_parse_addin_args(fake, args);
+
+		if (ret != CHANNEL_RC_OK)
+		{
+			WLog_ERR(TAG, "error parsing arguments");
+			goto error;
+		}
+	}
+
+	pEntryPoints->pRegisterRdpsndDevice(pEntryPoints->rdpsnd, &fake->device);
+	return ret;
+error:
+	rdpsnd_fake_free(&fake->device);
+	return ret;
+}