/[rdesktop]/sourceforge.net/trunk/rdesktop/rdpdr.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 650 by astrand, Thu Apr 15 20:11:19 2004 UTC revision 747 by astrand, Mon Aug 9 13:50:41 2004 UTC
# Line 1  Line 1 
1    /* -*- c-basic-offset: 8 -*-
2       rdesktop: A Remote Desktop Protocol client.
3       Copyright (C) Matthew Chapman 1999-2004
4    
5       This program is free software; you can redistribute it and/or modify
6       it under the terms of the GNU General Public License as published by
7       the Free Software Foundation; either version 2 of the License, or
8       (at your option) any later version.
9    
10       This program is distributed in the hope that it will be useful,
11       but WITHOUT ANY WARRANTY; without even the implied warranty of
12       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13       GNU General Public License for more details.
14    
15       You should have received a copy of the GNU General Public License
16       along with this program; if not, write to the Free Software
17       Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18    */
19    
20    /*
21      Here are some resources, for your IRP hacking pleasure:
22    
23      http://cvs.sourceforge.net/viewcvs.py/mingw/w32api/include/ddk/winddk.h?view=markup
24    
25      http://win32.mvps.org/ntfs/streams.cpp
26    
27      http://www.acc.umu.se/~bosse/ntifs.h
28    
29      http://undocumented.ntinternals.net/UserMode/Undocumented%20Functions/NT%20Objects/File/
30    
31      http://us1.samba.org/samba/ftp/specs/smb-nt01.txt
32    
33      http://www.osronline.com/
34    */
35    
36  #include <unistd.h>  #include <unistd.h>
37  #include <sys/types.h>  #include <sys/types.h>
38  #include <sys/time.h>  #include <sys/time.h>
39  #include <dirent.h>             /* opendir, closedir, readdir */  #include <dirent.h>             /* opendir, closedir, readdir */
40  #include <time.h>  #include <time.h>
41    #include <errno.h>
42  #include "rdesktop.h"  #include "rdesktop.h"
43    
44  #define IRP_MJ_CREATE                   0x00  #define IRP_MJ_CREATE                   0x00
# Line 19  Line 55 
55  #define IRP_MN_QUERY_DIRECTORY          0x01  #define IRP_MN_QUERY_DIRECTORY          0x01
56  #define IRP_MN_NOTIFY_CHANGE_DIRECTORY  0x02  #define IRP_MN_NOTIFY_CHANGE_DIRECTORY  0x02
57    
58  extern char hostname[16];  extern char g_hostname[16];
59  extern DEVICE_FNS serial_fns;  extern DEVICE_FNS serial_fns;
60  extern DEVICE_FNS printer_fns;  extern DEVICE_FNS printer_fns;
61  extern DEVICE_FNS parallel_fns;  extern DEVICE_FNS parallel_fns;
# Line 34  uint32 g_num_devices; Line 70  uint32 g_num_devices;
70    
71  /* Table with information about rdpdr devices */  /* Table with information about rdpdr devices */
72  RDPDR_DEVICE g_rdpdr_device[RDPDR_MAX_DEVICES];  RDPDR_DEVICE g_rdpdr_device[RDPDR_MAX_DEVICES];
73  char * g_rdpdr_clientname = NULL;  char *g_rdpdr_clientname = NULL;
74    
75  /* Used to store incoming io request, until they are ready to be completed */  /* Used to store incoming io request, until they are ready to be completed */
76  /* using a linked list ensures that they are processed in the right order, */  /* using a linked list ensures that they are processed in the right order, */
# Line 77  convert_to_unix_filename(char *filename) Line 113  convert_to_unix_filename(char *filename)
113          }          }
114  }  }
115    
116  BOOL  static BOOL
117  rdpdr_handle_ok(int device, int handle)  rdpdr_handle_ok(int device, int handle)
118  {  {
119          switch (g_rdpdr_device[device].device_type)          switch (g_rdpdr_device[device].device_type)
# Line 98  rdpdr_handle_ok(int device, int handle) Line 134  rdpdr_handle_ok(int device, int handle)
134  }  }
135    
136  /* Add a new io request to the table containing pending io requests so it won't block rdesktop */  /* Add a new io request to the table containing pending io requests so it won't block rdesktop */
137  BOOL  static BOOL
138  add_async_iorequest(uint32 device, uint32 file, uint32 id, uint32 major, uint32 length,  add_async_iorequest(uint32 device, uint32 file, uint32 id, uint32 major, uint32 length,
139                      DEVICE_FNS * fns, uint32 total_timeout, uint32 interval_timeout, uint8 * buffer,                      DEVICE_FNS * fns, uint32 total_timeout, uint32 interval_timeout, uint8 * buffer,
140                      uint32 offset)                      uint32 offset)
# Line 144  add_async_iorequest(uint32 device, uint3 Line 180  add_async_iorequest(uint32 device, uint3
180          return True;          return True;
181  }  }
182    
183  void  static void
184  rdpdr_send_connect(void)  rdpdr_send_connect(void)
185  {  {
186          uint8 magic[4] = "rDCC";          uint8 magic[4] = "rDCC";
# Line 160  rdpdr_send_connect(void) Line 196  rdpdr_send_connect(void)
196  }  }
197    
198    
199  void  static void
200  rdpdr_send_name(void)  rdpdr_send_name(void)
201  {  {
202          uint8 magic[4] = "rDNC";          uint8 magic[4] = "rDNC";
203          STREAM s;          STREAM s;
204          uint32 hostlen;          uint32 hostlen;
205    
206          if (NULL == g_rdpdr_clientname) {          if (NULL == g_rdpdr_clientname)
207            g_rdpdr_clientname = hostname;          {
208                    g_rdpdr_clientname = g_hostname;
209          }          }
210          hostlen = (strlen(g_rdpdr_clientname) + 1) * 2;          hostlen = (strlen(g_rdpdr_clientname) + 1) * 2;
211    
# Line 184  rdpdr_send_name(void) Line 221  rdpdr_send_name(void)
221  }  }
222    
223  /* Returns the size of the payload of the announce packet */  /* Returns the size of the payload of the announce packet */
224  int  static int
225  announcedata_size()  announcedata_size()
226  {  {
227          int size, i;          int size, i;
# Line 211  announcedata_size() Line 248  announcedata_size()
248          return size;          return size;
249  }  }
250    
251  void  static void
252  rdpdr_send_available(void)  rdpdr_send_available(void)
253  {  {
254    
# Line 229  rdpdr_send_available(void) Line 266  rdpdr_send_available(void)
266          {          {
267                  out_uint32_le(s, g_rdpdr_device[i].device_type);                  out_uint32_le(s, g_rdpdr_device[i].device_type);
268                  out_uint32_le(s, i);    /* RDP Device ID */                  out_uint32_le(s, i);    /* RDP Device ID */
269                    /* Is it possible to use share names longer than 8 chars?
270                       /astrand */
271                  out_uint8p(s, g_rdpdr_device[i].name, 8);                  out_uint8p(s, g_rdpdr_device[i].name, 8);
272    
273                  switch (g_rdpdr_device[i].device_type)                  switch (g_rdpdr_device[i].device_type)
# Line 269  rdpdr_send_available(void) Line 308  rdpdr_send_available(void)
308          channel_send(s, rdpdr_channel);          channel_send(s, rdpdr_channel);
309  }  }
310    
311  void  static void
312  rdpdr_send_completion(uint32 device, uint32 id, uint32 status, uint32 result, uint8 * buffer,  rdpdr_send_completion(uint32 device, uint32 id, uint32 status, uint32 result, uint8 * buffer,
313                        uint32 length)                        uint32 length)
314  {  {
# Line 622  rdpdr_process_irp(STREAM s) Line 661  rdpdr_process_irp(STREAM s)
661                          result = buffer_len = out.p - out.data;                          result = buffer_len = out.p - out.data;
662                          break;                          break;
663    
664    
665                    case IRP_MJ_LOCK_CONTROL:
666    
667                            if (g_rdpdr_device[device].device_type != DEVICE_TYPE_DISK)
668                            {
669                                    status = STATUS_INVALID_HANDLE;
670                                    break;
671                            }
672    
673                            in_uint32_le(s, info_level);
674    
675                            out.data = out.p = buffer;
676                            out.size = sizeof(buffer);
677                            /* FIXME: Perhaps consider actually *do*
678                               something here :-) */
679                            status = STATUS_SUCCESS;
680                            result = buffer_len = out.p - out.data;
681                            break;
682    
683                  default:                  default:
684                          unimpl("IRP major=0x%x minor=0x%x\n", major, minor);                          unimpl("IRP major=0x%x minor=0x%x\n", major, minor);
685                          break;                          break;
# Line 636  rdpdr_process_irp(STREAM s) Line 694  rdpdr_process_irp(STREAM s)
694          buffer = NULL;          buffer = NULL;
695  }  }
696    
697  void  static void
698  rdpdr_send_clientcapabilty(void)  rdpdr_send_clientcapabilty(void)
699  {  {
700          uint8 magic[4] = "rDPC";          uint8 magic[4] = "rDPC";
# Line 754  rdpdr_add_fds(int *n, fd_set * rfds, fd_ Line 812  rdpdr_add_fds(int *n, fd_set * rfds, fd_
812  {  {
813          uint32 select_timeout = 0;      // Timeout value to be used for select() (in millisecons).          uint32 select_timeout = 0;      // Timeout value to be used for select() (in millisecons).
814          struct async_iorequest *iorq;          struct async_iorequest *iorq;
815            char c;
816    
817          iorq = g_iorequest;          iorq = g_iorequest;
818          while (iorq != NULL)          while (iorq != NULL)
# Line 763  rdpdr_add_fds(int *n, fd_set * rfds, fd_ Line 822  rdpdr_add_fds(int *n, fd_set * rfds, fd_
822                          switch (iorq->major)                          switch (iorq->major)
823                          {                          {
824                                  case IRP_MJ_READ:                                  case IRP_MJ_READ:
825                                            /* Is this FD valid? FDs will
826                                               be invalid when
827                                               reconnecting. FIXME: Real
828                                               support for reconnects. */
829    
830                                            if ((read(iorq->fd, &c, 0) != 0) && (errno == EBADF))
831                                                    break;
832    
833                                          FD_SET(iorq->fd, rfds);                                          FD_SET(iorq->fd, rfds);
834                                            *n = MAX(*n, iorq->fd);
835    
836                                          // Check if io request timeout is smaller than current (but not 0).                                          // Check if io request timeout is smaller than current (but not 0).
837                                          if (iorq->timeout                                          if (iorq->timeout
# Line 778  rdpdr_add_fds(int *n, fd_set * rfds, fd_ Line 845  rdpdr_add_fds(int *n, fd_set * rfds, fd_
845                                                  tv->tv_usec = (select_timeout % 1000) * 1000;                                                  tv->tv_usec = (select_timeout % 1000) * 1000;
846                                                  *timeout = True;                                                  *timeout = True;
847                                          }                                          }
848    
849                                          break;                                          break;
850    
851                                  case IRP_MJ_WRITE:                                  case IRP_MJ_WRITE:
852                                            /* FD still valid? See above. */
853                                            if ((write(iorq->fd, &c, 0) != 0) && (errno == EBADF))
854                                                    break;
855    
856                                          FD_SET(iorq->fd, wfds);                                          FD_SET(iorq->fd, wfds);
857                                            *n = MAX(*n, iorq->fd);
858                                          break;                                          break;
859    
860                          }                          }
861                          *n = MAX(*n, iorq->fd);  
862                  }                  }
863    
864                  iorq = iorq->next;                  iorq = iorq->next;
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