88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Laxmikant Rashinkar 2012 LK.Rashinkar@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _DRDYNVC_H_
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#define _DRDYNVC_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include "arch.h"
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#include "chansrv.h"
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#include "xcommon.h"
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#include "log.h"
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#include "os_calls.h"
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#include "trans.h"
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/* move this to tsmf.c */
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#define TSMF_CHAN_ID 0x1000
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/* get number of bytes in stream before s->p */
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#define stream_length_before_p(s) (int) ((s)->p - (s)->data)
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/* get number of bytes in stream after s->p */
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#define stream_length_after_p(s) (int) ((s)->end - (s)->p)
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#define rewind_stream(s) do \
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{ \
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(s)->p = (s)->data; \
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(s)->end = (s)->data; \
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} while (0)
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/* max number of bytes we can send in one pkt */
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#define MAX_PDU_SIZE 1600
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/* commands used to manage dynamic virtual channels */
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#define CMD_DVC_OPEN_CHANNEL 0x10
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#define CMD_DVC_DATA_FIRST 0x20
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#define CMD_DVC_DATA 0x30
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#define CMD_DVC_CLOSE_CHANNEL 0x40
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#define CMD_DVC_CAPABILITY 0x50
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int APP_CC drdynvc_init(void);
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static int APP_CC drdynvc_send_capability_request(uint16_t version);
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static int APP_CC drdynvc_process_capability_response(struct stream* s,
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unsigned char cmd);
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int APP_CC drdynvc_send_open_channel_request(int chan_pri, unsigned int chan_id,
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char *chan_name);
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static int APP_CC drdynvc_process_open_channel_response(struct stream *s,
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unsigned char cmd);
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int APP_CC drdynvc_send_close_channel_request(unsigned int chan_id);
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static int APP_CC drdynvc_process_close_channel_response(struct stream *s,
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unsigned char cmd);
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int APP_CC drdynvc_write_data(uint32_t chan_id, char *data, int data_size);
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int APP_CC drdynvc_data_in(struct stream* s, int chan_id, int chan_flags,
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int length, int total_length);
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static int APP_CC drdynvc_process_data_first(struct stream* s, unsigned char cmd);
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static int APP_CC drdynvc_process_data(struct stream* s, unsigned char cmd);
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static int APP_CC drdynvc_insert_uint_124(struct stream *s, uint32_t val);
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static int APP_CC drdynvc_get_chan_id(struct stream *s, char cmd, uint32_t *chan_id_p);
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#endif
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