/[rdesktop]/sourceforge.net/trunk/rdesktop/rdp.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 879 by astrand, Sun Apr 3 18:08:05 2005 UTC revision 1217 by astrand, Fri Apr 7 14:41:34 2006 UTC
# Line 44  extern BOOL g_polygon_ellipse_orders; Line 44  extern BOOL g_polygon_ellipse_orders;
44  extern BOOL g_use_rdp5;  extern BOOL g_use_rdp5;
45  extern uint16 g_server_rdp_version;  extern uint16 g_server_rdp_version;
46  extern uint32 g_rdp5_performanceflags;  extern uint32 g_rdp5_performanceflags;
47  extern int g_server_bpp;  extern int g_server_depth;
48  extern int g_width;  extern int g_width;
49  extern int g_height;  extern int g_height;
50  extern BOOL g_bitmap_cache;  extern BOOL g_bitmap_cache;
51  extern BOOL g_bitmap_cache_persist_enable;  extern BOOL g_bitmap_cache_persist_enable;
52    extern BOOL g_numlock_sync;
53    
54  uint8 *g_next_packet;  uint8 *g_next_packet;
55  uint32 g_rdp_shareid;  uint32 g_rdp_shareid;
56    
57  extern RDPCOMP g_mppc_dict;  extern RDPCOMP g_mppc_dict;
58    
59    /* Session Directory support */
60    extern BOOL g_redirect;
61    extern char g_redirect_server[64];
62    extern char g_redirect_domain[16];
63    extern char g_redirect_password[64];
64    extern char g_redirect_username[64];
65    extern char g_redirect_cookie[128];
66    extern uint32 g_redirect_flags;
67    /* END Session Directory support */
68    
69  #if WITH_DEBUG  #if WITH_DEBUG
70  static uint32 g_packetno;  static uint32 g_packetno;
71  #endif  #endif
# Line 71  rdp_recv(uint8 * type) Line 82  rdp_recv(uint8 * type)
82          uint16 length, pdu_type;          uint16 length, pdu_type;
83          uint8 rdpver;          uint8 rdpver;
84    
85          if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end))          if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end) || (g_next_packet == NULL))
86          {          {
87                  rdp_s = sec_recv(&rdpver);                  rdp_s = sec_recv(&rdpver);
88                  if (rdp_s == NULL)                  if (rdp_s == NULL)
# Line 260  rdp_in_unistr(STREAM s, char *string, in Line 271  rdp_in_unistr(STREAM s, char *string, in
271                          g_iconv_works = False;                          g_iconv_works = False;
272                          return rdp_in_unistr(s, string, uni_len);                          return rdp_in_unistr(s, string, uni_len);
273                  }                  }
274    
275                    /* we must update the location of the current STREAM for future reads of s->p */
276                    s->p += uni_len;
277    
278                  return pout - string;                  return pout - string;
279          }          }
280          else          else
# Line 297  rdp_send_logon_info(uint32 flags, char * Line 312  rdp_send_logon_info(uint32 flags, char *
312          time_t t = time(NULL);          time_t t = time(NULL);
313          time_t tzone;          time_t tzone;
314    
 #if 0  
         /* enable rdp compression */  
         /* some problems still exist with rdp5 */  
         flags |= RDP_COMPRESSION;  
 #endif  
   
315          if (!g_use_rdp5 || 1 == g_server_rdp_version)          if (!g_use_rdp5 || 1 == g_server_rdp_version)
316          {          {
317                  DEBUG_RDP5(("Sending RDP4-style Logon packet\n"));                  DEBUG_RDP5(("Sending RDP4-style Logon packet\n"));
# Line 487  rdp_send_input(uint32 time, uint16 messa Line 496  rdp_send_input(uint32 time, uint16 messa
496          rdp_send_data(s, RDP_DATA_PDU_INPUT);          rdp_send_data(s, RDP_DATA_PDU_INPUT);
497  }  }
498    
499  /* Inform the server on the contents of the persistent bitmap cache */  /* Send a client window information PDU */
500    void
501    rdp_send_client_window_status(int status)
502    {
503            STREAM s;
504            static int current_status = 1;
505    
506            if (current_status == status)
507                    return;
508    
509            s = rdp_init_data(12);
510    
511            out_uint32_le(s, status);
512    
513            switch (status)
514            {
515                    case 0: /* shut the server up */
516                            break;
517    
518                    case 1: /* receive data again */
519                            out_uint32_le(s, 0);    /* unknown */
520                            out_uint16_le(s, g_width);
521                            out_uint16_le(s, g_height);
522                            break;
523            }
524    
525            s_mark_end(s);
526            rdp_send_data(s, RDP_DATA_PDU_CLIENT_WINDOW_STATUS);
527            current_status = status;
528    }
529    
530    /* Send persistent bitmap cache enumeration PDU's */
531  static void  static void
532  rdp_enum_bmpcache2(void)  rdp_enum_bmpcache2(void)
533  {  {
# Line 581  rdp_out_bitmap_caps(STREAM s) Line 621  rdp_out_bitmap_caps(STREAM s)
621          out_uint16_le(s, RDP_CAPSET_BITMAP);          out_uint16_le(s, RDP_CAPSET_BITMAP);
622          out_uint16_le(s, RDP_CAPLEN_BITMAP);          out_uint16_le(s, RDP_CAPLEN_BITMAP);
623    
624          out_uint16_le(s, g_server_bpp); /* Preferred BPP */          out_uint16_le(s, g_server_depth);       /* Preferred colour depth */
625          out_uint16_le(s, 1);    /* Receive 1 BPP */          out_uint16_le(s, 1);    /* Receive 1 BPP */
626          out_uint16_le(s, 1);    /* Receive 4 BPP */          out_uint16_le(s, 1);    /* Receive 4 BPP */
627          out_uint16_le(s, 1);    /* Receive 8 BPP */          out_uint16_le(s, 1);    /* Receive 8 BPP */
# Line 645  rdp_out_bmpcache_caps(STREAM s) Line 685  rdp_out_bmpcache_caps(STREAM s)
685          out_uint16_le(s, RDP_CAPSET_BMPCACHE);          out_uint16_le(s, RDP_CAPSET_BMPCACHE);
686          out_uint16_le(s, RDP_CAPLEN_BMPCACHE);          out_uint16_le(s, RDP_CAPLEN_BMPCACHE);
687    
688          Bpp = (g_server_bpp + 7) / 8;          Bpp = (g_server_depth + 7) / 8; /* bytes per pixel */
689          out_uint8s(s, 24);      /* unused */          out_uint8s(s, 24);      /* unused */
690          out_uint16_le(s, 0x258);        /* entries */          out_uint16_le(s, 0x258);        /* entries */
691          out_uint16_le(s, 0x100 * Bpp);  /* max cell size */          out_uint16_le(s, 0x100 * Bpp);  /* max cell size */
# Line 664  rdp_out_bmpcache2_caps(STREAM s) Line 704  rdp_out_bmpcache2_caps(STREAM s)
704    
705          out_uint16_le(s, g_bitmap_cache_persist_enable ? 2 : 0);        /* version */          out_uint16_le(s, g_bitmap_cache_persist_enable ? 2 : 0);        /* version */
706    
707          out_uint16_le(s, 0x0300);       /* flags? number of caches? */          out_uint16_be(s, 3);    /* number of caches in this set */
708    
709            /* max cell size for cache 0 is 16x16, 1 = 32x32, 2 = 64x64, etc */
710          out_uint32_le(s, BMPCACHE2_C0_CELLS);          out_uint32_le(s, BMPCACHE2_C0_CELLS);
711          out_uint32_le(s, BMPCACHE2_C1_CELLS);          out_uint32_le(s, BMPCACHE2_C1_CELLS);
712          if (pstcache_init(2))          if (pstcache_init(2))
# Line 841  rdp_process_general_caps(STREAM s) Line 882  rdp_process_general_caps(STREAM s)
882  static void  static void
883  rdp_process_bitmap_caps(STREAM s)  rdp_process_bitmap_caps(STREAM s)
884  {  {
885          uint16 width, height, bpp;          uint16 width, height, depth;
886    
887          in_uint16_le(s, bpp);          in_uint16_le(s, depth);
888          in_uint8s(s, 6);          in_uint8s(s, 6);
889    
890          in_uint16_le(s, width);          in_uint16_le(s, width);
891          in_uint16_le(s, height);          in_uint16_le(s, height);
892    
893          DEBUG(("setting desktop size and bpp to: %dx%dx%d\n", width, height, bpp));          DEBUG(("setting desktop size and depth to: %dx%dx%d\n", width, height, depth));
894    
895          /*          /*
896           * The server may limit bpp and change the size of the desktop (for           * The server may limit depth and change the size of the desktop (for
897           * example when shadowing another session).           * example when shadowing another session).
898           */           */
899          if (g_server_bpp != bpp)          if (g_server_depth != depth)
900          {          {
901                  warning("colour depth changed from %d to %d\n", g_server_bpp, bpp);                  warning("Remote desktop does not support colour depth %d; falling back to %d\n",
902                  g_server_bpp = bpp;                          g_server_depth, depth);
903                    g_server_depth = depth;
904          }          }
905          if (g_width != width || g_height != height)          if (g_width != width || g_height != height)
906          {          {
907                  warning("screen size changed from %dx%d to %dx%d\n", g_width, g_height,                  warning("Remote desktop changed from %dx%d to %dx%d.\n", g_width, g_height,
908                          width, height);                          width, height);
909                  g_width = width;                  g_width = width;
910                  g_height = height;                  g_height = height;
# Line 871  rdp_process_bitmap_caps(STREAM s) Line 913  rdp_process_bitmap_caps(STREAM s)
913  }  }
914    
915  /* Process server capabilities */  /* Process server capabilities */
916  void  static void
917  rdp_process_server_caps(STREAM s, uint16 length)  rdp_process_server_caps(STREAM s, uint16 length)
918  {  {
919          int n;          int n;
# Line 930  process_demand_active(STREAM s) Line 972  process_demand_active(STREAM s)
972          rdp_recv(&type);        /* RDP_PDU_SYNCHRONIZE */          rdp_recv(&type);        /* RDP_PDU_SYNCHRONIZE */
973          rdp_recv(&type);        /* RDP_CTL_COOPERATE */          rdp_recv(&type);        /* RDP_CTL_COOPERATE */
974          rdp_recv(&type);        /* RDP_CTL_GRANT_CONTROL */          rdp_recv(&type);        /* RDP_CTL_GRANT_CONTROL */
975          rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(read_keyboard_state()), 0);          rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0,
976                           g_numlock_sync ? ui_get_numlock_state(read_keyboard_state()) : 0, 0);
977    
978          if (g_use_rdp5)          if (g_use_rdp5)
979          {          {
# Line 1258  process_data_pdu(STREAM s, uint32 * ext_ Line 1301  process_data_pdu(STREAM s, uint32 * ext_
1301          return False;          return False;
1302  }  }
1303    
1304    /* Process redirect PDU from Session Directory */
1305    static BOOL
1306    process_redirect_pdu(STREAM s /*, uint32 * ext_disc_reason */ )
1307    {
1308            uint32 len;
1309    
1310            /* these 2 bytes are unknown, seem to be zeros */
1311            in_uint8s(s, 2);
1312    
1313            /* read connection flags */
1314            in_uint32_le(s, g_redirect_flags);
1315    
1316            /* read length of ip string */
1317            in_uint32_le(s, len);
1318    
1319            /* read ip string */
1320            rdp_in_unistr(s, g_redirect_server, len);
1321    
1322            /* read length of cookie string */
1323            in_uint32_le(s, len);
1324    
1325            /* read cookie string (plain ASCII) */
1326            in_uint8a(s, g_redirect_cookie, len);
1327            g_redirect_cookie[len] = 0;
1328    
1329            /* read length of username string */
1330            in_uint32_le(s, len);
1331    
1332            /* read username string */
1333            rdp_in_unistr(s, g_redirect_username, len);
1334    
1335            /* read length of domain string */
1336            in_uint32_le(s, len);
1337    
1338            /* read domain string */
1339            rdp_in_unistr(s, g_redirect_domain, len);
1340    
1341            /* read length of password string */
1342            in_uint32_le(s, len);
1343    
1344            /* read password string */
1345            rdp_in_unistr(s, g_redirect_password, len);
1346    
1347            g_redirect = True;
1348    
1349            return True;
1350    }
1351    
1352  /* Process incoming packets */  /* Process incoming packets */
1353  /* nevers gets out of here till app is done */  /* nevers gets out of here till app is done */
1354  void  void
# Line 1291  rdp_loop(BOOL * deactivated, uint32 * ex Line 1382  rdp_loop(BOOL * deactivated, uint32 * ex
1382                                  DEBUG(("RDP_PDU_DEACTIVATE\n"));                                  DEBUG(("RDP_PDU_DEACTIVATE\n"));
1383                                  *deactivated = True;                                  *deactivated = True;
1384                                  break;                                  break;
1385                            case RDP_PDU_REDIRECT:
1386                                    return process_redirect_pdu(s);
1387                                    break;
1388                          case RDP_PDU_DATA:                          case RDP_PDU_DATA:
1389                                  disc = process_data_pdu(s, ext_disc_reason);                                  disc = process_data_pdu(s, ext_disc_reason);
1390                                  break;                                  break;
# Line 1318  rdp_connect(char *server, uint32 flags, Line 1412  rdp_connect(char *server, uint32 flags,
1412          return True;          return True;
1413  }  }
1414    
1415    /* Establish a reconnection up to the RDP layer */
1416    BOOL
1417    rdp_reconnect(char *server, uint32 flags, char *domain, char *password,
1418                  char *command, char *directory, char *cookie)
1419    {
1420            if (!sec_reconnect(server))
1421                    return False;
1422    
1423            rdp_send_logon_info(flags, domain, g_username, password, command, directory);
1424            return True;
1425    }
1426    
1427    /* Called during redirection to reset the state to support redirection */
1428    void
1429    rdp_reset_state(void)
1430    {
1431            g_next_packet = NULL;   /* reset the packet information */
1432            g_rdp_shareid = 0;
1433            sec_reset_state();
1434    }
1435    
1436  /* Disconnect from the RDP layer */  /* Disconnect from the RDP layer */
1437  void  void
1438  rdp_disconnect(void)  rdp_disconnect(void)
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