FreeRDP: bitmap-filter.cpp File Reference

FreeRDP

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <map>
#include <memory>
#include <mutex>
#include <freerdp/server/proxy/proxy_modules_api.h>
#include <freerdp/server/proxy/proxy_context.h>
#include <freerdp/channels/drdynvc.h>
#include <freerdp/channels/rdpgfx.h>
#include <freerdp/utils/gfx.h>

Macros
#define	TAG MODULE_TAG("persist-bitmap-filter")

Functions
static BOOL	filter_client_pre_connect (proxyPlugin plugin, proxyData pdata, void *custom)

static BOOL	filter_dyn_channel_intercept_list (proxyPlugin plugin, proxyData pdata, void *arg)

static BOOL	filter_static_channel_intercept_list (proxyPlugin plugin, proxyData pdata, void *arg)

static size_t	drdynvc_cblen_to_bytes (UINT8 cbLen)

static UINT32	drdynvc_read_variable_uint (wStream *s, UINT8 cbLen)

static BOOL	drdynvc_try_read_header (wStream *s, size_t &channelId, size_t &length)

static DynChannelState *	filter_get_plugin_data (proxyPlugin plugin, proxyData pdata)

static BOOL	filter_set_plugin_data (proxyPlugin plugin, proxyData pdata, DynChannelState *data)

static UINT8	drdynvc_value_to_cblen (UINT32 value)

static BOOL	drdynvc_write_variable_uint (wStream *s, UINT32 value, UINT8 cbLen)

static BOOL	drdynvc_write_header (wStream *s, UINT32 channelId)

static BOOL	filter_forward_empty_offer (const char sessionID, proxyDynChannelInterceptData data, size_t startPosition, UINT32 channelId)

static BOOL	filter_dyn_channel_intercept (proxyPlugin plugin, proxyData pdata, void *arg)

static BOOL	filter_server_session_started (proxyPlugin plugin, proxyData pdata, void *)

static BOOL	filter_server_session_end (proxyPlugin plugin, proxyData pdata, void *)

FREERDP_API BOOL	proxy_module_entry_point (proxyPluginsManager plugins_manager, void userdata)

Variables
static constexpr char	plugin_name [] = "bitmap-filter"

static constexpr char	plugin_desc []

static const std::vector< std::string >	plugin_static_intercept = { DRDYNVC_SVC_CHANNEL_NAME }

static const std::vector< std::string >	plugin_dyn_intercept = { RDPGFX_DVC_CHANNEL_NAME }

Macro Definition Documentation

◆ TAG

#define TAG MODULE_TAG("persist-bitmap-filter")

FreeRDP: A Remote Desktop Protocol Implementation FreeRDP Proxy Server persist-bitmap-filter Module

this module is designed to deactivate all persistent bitmap cache settings a client might send.

Copyright 2023 Armin Novak anova.nosp@m.k@th.nosp@m.incas.nosp@m.t.co.nosp@m.m Copyright 2023 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.

Function Documentation

◆ drdynvc_cblen_to_bytes()

static size_t drdynvc_cblen_to_bytes ( UINT8 cbLen )

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◆ drdynvc_read_variable_uint()

static UINT32 drdynvc_read_variable_uint	(	wStream *	s,
		UINT8	cbLen
	)

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◆ drdynvc_try_read_header()

static BOOL drdynvc_try_read_header	(	wStream *	s,
		size_t &	channelId,
		size_t &	length
	)

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◆ drdynvc_value_to_cblen()

static UINT8 drdynvc_value_to_cblen ( UINT32 value )

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◆ drdynvc_write_header()

static BOOL drdynvc_write_header	(	wStream *	s,
		UINT32	channelId
	)

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◆ drdynvc_write_variable_uint()

static BOOL drdynvc_write_variable_uint	(	wStream *	s,
		UINT32	value,
		UINT8	cbLen
	)

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◆ filter_client_pre_connect()

static BOOL filter_client_pre_connect	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		void *	custom
	)

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◆ filter_dyn_channel_intercept()

static BOOL filter_dyn_channel_intercept	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		void *	arg
	)

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◆ filter_dyn_channel_intercept_list()

static BOOL filter_dyn_channel_intercept_list	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		void *	arg
	)

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◆ filter_forward_empty_offer()

static BOOL filter_forward_empty_offer	(	const char *	sessionID,
		proxyDynChannelInterceptData *	data,
		size_t	startPosition,
		UINT32	channelId
	)

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◆ filter_get_plugin_data()

static DynChannelState* filter_get_plugin_data	(	proxyPlugin *	plugin,
		proxyData *	pdata
	)

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◆ filter_server_session_end()

static BOOL filter_server_session_end	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		void *
	)

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◆ filter_server_session_started()

static BOOL filter_server_session_started	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		void *
	)

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◆ filter_set_plugin_data()

static BOOL filter_set_plugin_data	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		DynChannelState *	data
	)

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◆ filter_static_channel_intercept_list()

static BOOL filter_static_channel_intercept_list	(	proxyPlugin *	plugin,
		proxyData *	pdata,
		void *	arg
	)

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◆ proxy_module_entry_point()

BOOL proxy_module_entry_point	(	proxyPluginsManager *	plugins_manager,
		void *	userdata
	)

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Variable Documentation

◆ plugin_desc

constexpr char plugin_desc[]

staticconstexpr

Initial value:

=

"this plugin deactivates and filters persistent bitmap cache."

◆ plugin_dyn_intercept

const std::vector<std::string> plugin_dyn_intercept = { RDPGFX_DVC_CHANNEL_NAME }

static

◆ plugin_name

constexpr char plugin_name[] = "bitmap-filter"

staticconstexpr

◆ plugin_static_intercept

const std::vector<std::string> plugin_static_intercept = { DRDYNVC_SVC_CHANNEL_NAME }

static