/[rdesktop]/sourceforge.net/trunk/rdesktop/mcs.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 348 by forsberg, Thu Mar 27 13:15:36 2003 UTC revision 828 by stargo, Sun Mar 6 21:11:18 2005 UTC
# Line 1  Line 1 
1  /* -*- c-basic-offset: 8 -*-  /* -*- c-basic-offset: 8 -*-
2     rdesktop: A Remote Desktop Protocol client.     rdesktop: A Remote Desktop Protocol client.
3     Protocol services - Multipoint Communications Service     Protocol services - Multipoint Communications Service
4     Copyright (C) Matthew Chapman 1999-2002     Copyright (C) Matthew Chapman 1999-2005
5        
6     This program is free software; you can redistribute it and/or modify     This program is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by     it under the terms of the GNU General Public License as published by
# Line 20  Line 20 
20    
21  #include "rdesktop.h"  #include "rdesktop.h"
22    
23  uint16 mcs_userid;  uint16 g_mcs_userid;
24  extern BOOL use_rdp5;  extern VCHANNEL g_channels[];
25    extern unsigned int g_num_channels;
26    
27  /* Parse an ASN.1 BER header */  /* Parse an ASN.1 BER header */
28  static BOOL  static BOOL
# Line 153  mcs_recv_connect_response(STREAM mcs_dat Line 154  mcs_recv_connect_response(STREAM mcs_dat
154          int length;          int length;
155          STREAM s;          STREAM s;
156    
157          s = iso_recv();          s = iso_recv(NULL);
158          if (s == NULL)          if (s == NULL)
159                  return False;                  return False;
160    
# Line 177  mcs_recv_connect_response(STREAM mcs_dat Line 178  mcs_recv_connect_response(STREAM mcs_dat
178          /*          /*
179             if (length > mcs_data->size)             if (length > mcs_data->size)
180             {             {
181             error("MCS data length %d, expected %d\n", length,             error("MCS data length %d, expected %d\n", length,
182             mcs_data->size);             mcs_data->size);
183             length = mcs_data->size;             length = mcs_data->size;
184             }             }
# Line 226  mcs_recv_aucf(uint16 * mcs_userid) Line 227  mcs_recv_aucf(uint16 * mcs_userid)
227          uint8 opcode, result;          uint8 opcode, result;
228          STREAM s;          STREAM s;
229    
230          s = iso_recv();          s = iso_recv(NULL);
231          if (s == NULL)          if (s == NULL)
232                  return False;                  return False;
233    
# Line 256  mcs_send_cjrq(uint16 chanid) Line 257  mcs_send_cjrq(uint16 chanid)
257  {  {
258          STREAM s;          STREAM s;
259    
260            DEBUG_RDP5(("Sending CJRQ for channel #%d\n", chanid));
261    
262          s = iso_init(5);          s = iso_init(5);
263    
264          out_uint8(s, (MCS_CJRQ << 2));          out_uint8(s, (MCS_CJRQ << 2));
265          out_uint16_be(s, mcs_userid);          out_uint16_be(s, g_mcs_userid);
266          out_uint16_be(s, chanid);          out_uint16_be(s, chanid);
267    
268          s_mark_end(s);          s_mark_end(s);
# Line 273  mcs_recv_cjcf(void) Line 276  mcs_recv_cjcf(void)
276          uint8 opcode, result;          uint8 opcode, result;
277          STREAM s;          STREAM s;
278    
279          s = iso_recv();          s = iso_recv(NULL);
280          if (s == NULL)          if (s == NULL)
281                  return False;                  return False;
282    
# Line 310  mcs_init(int length) Line 313  mcs_init(int length)
313          return s;          return s;
314  }  }
315    
316  /* Send an MCS transport data packet */  /* Send an MCS transport data packet to a specific channel */
317  void  void
318  mcs_send(STREAM s)  mcs_send_to_channel(STREAM s, uint16 channel)
319  {  {
320          uint16 length;          uint16 length;
321    
# Line 321  mcs_send(STREAM s) Line 324  mcs_send(STREAM s)
324          length |= 0x8000;          length |= 0x8000;
325    
326          out_uint8(s, (MCS_SDRQ << 2));          out_uint8(s, (MCS_SDRQ << 2));
327          out_uint16_be(s, mcs_userid);          out_uint16_be(s, g_mcs_userid);
328          out_uint16_be(s, MCS_GLOBAL_CHANNEL);          out_uint16_be(s, channel);
329          out_uint8(s, 0x70);     /* flags */          out_uint8(s, 0x70);     /* flags */
330          out_uint16_be(s, length);          out_uint16_be(s, length);
331    
332          iso_send(s);          iso_send(s);
333  }  }
334    
335    /* Send an MCS transport data packet to the global channel */
336    void
337    mcs_send(STREAM s)
338    {
339            mcs_send_to_channel(s, MCS_GLOBAL_CHANNEL);
340    }
341    
342  /* Receive an MCS transport data packet */  /* Receive an MCS transport data packet */
343  STREAM  STREAM
344  mcs_recv(uint16 * channel)  mcs_recv(uint16 * channel, uint8 * rdpver)
345  {  {
346          uint8 opcode, appid, length;          uint8 opcode, appid, length;
347          STREAM s;          STREAM s;
348    
349          s = iso_recv();          s = iso_recv(rdpver);
350          if (s == NULL)          if (s == NULL)
351                  return NULL;                  return NULL;
352            if (rdpver != NULL)
353                    if (*rdpver != 3)
354                            return s;
355          in_uint8(s, opcode);          in_uint8(s, opcode);
356          appid = opcode >> 2;          appid = opcode >> 2;
357          if (appid != MCS_SDIN)          if (appid != MCS_SDIN)
# Line 350  mcs_recv(uint16 * channel) Line 362  mcs_recv(uint16 * channel)
362                  }                  }
363                  return NULL;                  return NULL;
364          }          }
   
365          in_uint8s(s, 2);        /* userid */          in_uint8s(s, 2);        /* userid */
366          in_uint16_be(s, *channel);          in_uint16_be(s, *channel);
367          in_uint8s(s, 1);        /* flags */          in_uint8s(s, 1);        /* flags */
368          in_uint8(s, length);          in_uint8(s, length);
369          if (length & 0x80)          if (length & 0x80)
370                  in_uint8s(s, 1);        /* second byte of length */                  in_uint8s(s, 1);        /* second byte of length */
   
371          return s;          return s;
372  }  }
373    
# Line 365  mcs_recv(uint16 * channel) Line 375  mcs_recv(uint16 * channel)
375  BOOL  BOOL
376  mcs_connect(char *server, STREAM mcs_data, char *username)  mcs_connect(char *server, STREAM mcs_data, char *username)
377  {  {
378            unsigned int i;
379    
380          if (!iso_connect(server, username))          if (!iso_connect(server, username))
381                  return False;                  return False;
382    
# Line 375  mcs_connect(char *server, STREAM mcs_dat Line 387  mcs_connect(char *server, STREAM mcs_dat
387          mcs_send_edrq();          mcs_send_edrq();
388    
389          mcs_send_aurq();          mcs_send_aurq();
390          if (!mcs_recv_aucf(&mcs_userid))          if (!mcs_recv_aucf(&g_mcs_userid))
391                  goto error;                  goto error;
392    
393          mcs_send_cjrq(mcs_userid + 1001);          mcs_send_cjrq(g_mcs_userid + MCS_USERCHANNEL_BASE);
394    
395          if (!mcs_recv_cjcf())          if (!mcs_recv_cjcf())
396                  goto error;                  goto error;
397    
# Line 386  mcs_connect(char *server, STREAM mcs_dat Line 399  mcs_connect(char *server, STREAM mcs_dat
399          if (!mcs_recv_cjcf())          if (!mcs_recv_cjcf())
400                  goto error;                  goto error;
401    
402          if (use_rdp5)          for (i = 0; i < g_num_channels; i++)
403          {          {
404                  /* Note: If we send this cjrq after telling the server we support RDP4 only,                  mcs_send_cjrq(g_channels[i].mcs_id);
                    the server won't respond with a cjcf and we will hang. */  
                 mcs_send_cjrq(MCS_GLOBAL_CHANNEL + 1);  /* hack - clipboard */  
405                  if (!mcs_recv_cjcf())                  if (!mcs_recv_cjcf())
406                          goto error;                          goto error;
407          }          }
   
408          return True;          return True;
409    
410        error:        error:
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