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/**
* FreeRDP: A Remote Desktop Protocol Implementation
*
*
* Copyright 2022 David Fort <contact@hardening-consulting.com>
*
* 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.
*/
#ifndef SERVER_PROXY_PF_CHANNEL_H_
#define SERVER_PROXY_PF_CHANNEL_H_
#include <freerdp/server/proxy/proxy_context.h>
/** @brief operating mode of a channel tracker */
typedef enum
{
CHANNEL_TRACKER_PEEK, /*!< inquiring content, accumulating packet fragments */
CHANNEL_TRACKER_PASS, /*!< pass all the fragments of the current packet */
CHANNEL_TRACKER_DROP /*!< drop all the fragments of the current packet */
} ChannelTrackerMode;
typedef struct _ChannelStateTracker ChannelStateTracker;
typedef PfChannelResult (*ChannelTrackerPeekFn)(ChannelStateTracker* tracker, BOOL first,
BOOL lastPacket);
void channelTracker_free(ChannelStateTracker* t);
WINPR_ATTR_MALLOC(channelTracker_free, 1)
ChannelStateTracker* channelTracker_new(pServerStaticChannelContext* channel,
ChannelTrackerPeekFn fn, void* data);
BOOL channelTracker_setMode(ChannelStateTracker* tracker, ChannelTrackerMode mode);
ChannelTrackerMode channelTracker_getMode(ChannelStateTracker* tracker);
BOOL channelTracker_setPData(ChannelStateTracker* tracker, proxyData* pdata);
proxyData* channelTracker_getPData(ChannelStateTracker* tracker);
BOOL channelTracker_setCustomData(ChannelStateTracker* tracker, void* data);
void* channelTracker_getCustomData(ChannelStateTracker* tracker);
wStream* channelTracker_getCurrentPacket(ChannelStateTracker* tracker);
size_t channelTracker_getCurrentPacketSize(ChannelStateTracker* tracker);
BOOL channelTracker_setCurrentPacketSize(ChannelStateTracker* tracker, size_t size);
PfChannelResult channelTracker_update(ChannelStateTracker* tracker, const BYTE* xdata, size_t xsize,
UINT32 flags, size_t totalSize);
PfChannelResult channelTracker_flushCurrent(ChannelStateTracker* t, BOOL first, BOOL last,
BOOL toFront);
BOOL pf_channel_setup_generic(pServerStaticChannelContext* channel);
#endif /* SERVER_PROXY_PF_CHANNEL_H_ */
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