| 1 |
/* -*- c-basic-offset: 8 -*- |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
Protocol services - RDP layer |
| 4 |
Copyright (C) Matthew Chapman 1999-2002 |
| 5 |
|
| 6 |
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 |
| 8 |
the Free Software Foundation; either version 2 of the License, or |
| 9 |
(at your option) any later version. |
| 10 |
|
| 11 |
This program is distributed in the hope that it will be useful, |
| 12 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
GNU General Public License for more details. |
| 15 |
|
| 16 |
You should have received a copy of the GNU General Public License |
| 17 |
along with this program; if not, write to the Free Software |
| 18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#include "rdesktop.h" |
| 22 |
|
| 23 |
extern uint16 g_mcs_userid; |
| 24 |
extern char g_username[16]; |
| 25 |
extern BOOL g_bitmap_compression; |
| 26 |
extern BOOL g_orders; |
| 27 |
extern BOOL g_encryption; |
| 28 |
extern BOOL g_desktop_save; |
| 29 |
extern BOOL g_use_rdp5; |
| 30 |
extern uint16 g_server_rdp_version; |
| 31 |
extern int g_server_bpp; |
| 32 |
|
| 33 |
uint8 *g_next_packet; |
| 34 |
uint32 g_rdp_shareid; |
| 35 |
|
| 36 |
#if WITH_DEBUG |
| 37 |
static uint32 g_packetno; |
| 38 |
#endif |
| 39 |
|
| 40 |
/* Receive an RDP packet */ |
| 41 |
static STREAM |
| 42 |
rdp_recv(uint8 * type) |
| 43 |
{ |
| 44 |
static STREAM rdp_s; |
| 45 |
uint16 length, pdu_type; |
| 46 |
|
| 47 |
if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end)) |
| 48 |
{ |
| 49 |
rdp_s = sec_recv(); |
| 50 |
if (rdp_s == NULL) |
| 51 |
return NULL; |
| 52 |
|
| 53 |
g_next_packet = rdp_s->p; |
| 54 |
} |
| 55 |
else |
| 56 |
{ |
| 57 |
rdp_s->p = g_next_packet; |
| 58 |
} |
| 59 |
|
| 60 |
in_uint16_le(rdp_s, length); |
| 61 |
/* 32k packets are really 8, keepalive fix */ |
| 62 |
if (length == 0x8000) |
| 63 |
{ |
| 64 |
g_next_packet += 8; |
| 65 |
*type = 0; |
| 66 |
return rdp_s; |
| 67 |
} |
| 68 |
in_uint16_le(rdp_s, pdu_type); |
| 69 |
in_uint8s(rdp_s, 2); /* userid */ |
| 70 |
*type = pdu_type & 0xf; |
| 71 |
|
| 72 |
#if WITH_DEBUG |
| 73 |
DEBUG(("RDP packet #%d, (type %x)\n", ++g_packetno, *type)); |
| 74 |
hexdump(g_next_packet, length); |
| 75 |
#endif /* */ |
| 76 |
|
| 77 |
g_next_packet += length; |
| 78 |
return rdp_s; |
| 79 |
} |
| 80 |
|
| 81 |
/* Initialise an RDP data packet */ |
| 82 |
static STREAM |
| 83 |
rdp_init_data(int maxlen) |
| 84 |
{ |
| 85 |
STREAM s; |
| 86 |
|
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s = sec_init(g_encryption ? SEC_ENCRYPT : 0, maxlen + 18); |
| 88 |
s_push_layer(s, rdp_hdr, 18); |
| 89 |
|
| 90 |
return s; |
| 91 |
} |
| 92 |
|
| 93 |
/* Send an RDP data packet */ |
| 94 |
static void |
| 95 |
rdp_send_data(STREAM s, uint8 data_pdu_type) |
| 96 |
{ |
| 97 |
uint16 length; |
| 98 |
|
| 99 |
s_pop_layer(s, rdp_hdr); |
| 100 |
length = s->end - s->p; |
| 101 |
|
| 102 |
out_uint16_le(s, length); |
| 103 |
out_uint16_le(s, (RDP_PDU_DATA | 0x10)); |
| 104 |
out_uint16_le(s, (g_mcs_userid + 1001)); |
| 105 |
|
| 106 |
out_uint32_le(s, g_rdp_shareid); |
| 107 |
out_uint8(s, 0); /* pad */ |
| 108 |
out_uint8(s, 1); /* streamid */ |
| 109 |
out_uint16_le(s, (length - 14)); |
| 110 |
out_uint8(s, data_pdu_type); |
| 111 |
out_uint8(s, 0); /* compress_type */ |
| 112 |
out_uint16(s, 0); /* compress_len */ |
| 113 |
|
| 114 |
sec_send(s, g_encryption ? SEC_ENCRYPT : 0); |
| 115 |
} |
| 116 |
|
| 117 |
/* Output a string in Unicode */ |
| 118 |
void |
| 119 |
rdp_out_unistr(STREAM s, char *string, int len) |
| 120 |
{ |
| 121 |
int i = 0, j = 0; |
| 122 |
|
| 123 |
len += 2; |
| 124 |
|
| 125 |
while (i < len) |
| 126 |
{ |
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s->p[i++] = string[j++]; |
| 128 |
s->p[i++] = 0; |
| 129 |
} |
| 130 |
|
| 131 |
s->p += len; |
| 132 |
} |
| 133 |
|
| 134 |
/* Parse a logon info packet */ |
| 135 |
static void |
| 136 |
rdp_send_logon_info(uint32 flags, char *domain, char *user, |
| 137 |
char *password, char *program, char *directory) |
| 138 |
{ |
| 139 |
int len_domain = 2 * strlen(domain); |
| 140 |
int len_user = 2 * strlen(user); |
| 141 |
int len_password = 2 * strlen(password); |
| 142 |
int len_program = 2 * strlen(program); |
| 143 |
int len_directory = 2 * strlen(directory); |
| 144 |
int len_ip = 2 * strlen("127.0.0.1"); |
| 145 |
int len_dll = 2 * strlen("C:\\WINNT\\System32\\mstscax.dll"); |
| 146 |
int packetlen = 0; |
| 147 |
uint32 sec_flags = g_encryption ? (SEC_LOGON_INFO | SEC_ENCRYPT) : SEC_LOGON_INFO; |
| 148 |
STREAM s; |
| 149 |
|
| 150 |
if (!g_use_rdp5 || 1 == g_server_rdp_version) |
| 151 |
{ |
| 152 |
DEBUG_RDP5(("Sending RDP4-style Logon packet\n")); |
| 153 |
|
| 154 |
s = sec_init(sec_flags, 18 + len_domain + len_user + len_password |
| 155 |
+ len_program + len_directory + 10); |
| 156 |
|
| 157 |
out_uint32(s, 0); |
| 158 |
out_uint32_le(s, flags); |
| 159 |
out_uint16_le(s, len_domain); |
| 160 |
out_uint16_le(s, len_user); |
| 161 |
out_uint16_le(s, len_password); |
| 162 |
out_uint16_le(s, len_program); |
| 163 |
out_uint16_le(s, len_directory); |
| 164 |
rdp_out_unistr(s, domain, len_domain); |
| 165 |
rdp_out_unistr(s, user, len_user); |
| 166 |
rdp_out_unistr(s, password, len_password); |
| 167 |
rdp_out_unistr(s, program, len_program); |
| 168 |
rdp_out_unistr(s, directory, len_directory); |
| 169 |
} |
| 170 |
else |
| 171 |
{ |
| 172 |
flags |= RDP_LOGON_BLOB; |
| 173 |
DEBUG_RDP5(("Sending RDP5-style Logon packet\n")); |
| 174 |
packetlen = 4 + /* Unknown uint32 */ |
| 175 |
4 + /* flags */ |
| 176 |
2 + /* len_domain */ |
| 177 |
2 + /* len_user */ |
| 178 |
(flags & RDP_LOGON_AUTO ? 2 : 0) + /* len_password */ |
| 179 |
(flags & RDP_LOGON_BLOB ? 2 : 0) + /* Length of BLOB */ |
| 180 |
2 + /* len_program */ |
| 181 |
2 + /* len_directory */ |
| 182 |
(0 < len_domain ? len_domain : 2) + /* domain */ |
| 183 |
len_user + (flags & RDP_LOGON_AUTO ? len_password : 0) + 0 + /* We have no 512 byte BLOB. Perhaps we must? */ |
| 184 |
(flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO) ? 2 : 0) + /* After the BLOB is a unknown int16. If there is a BLOB, that is. */ |
| 185 |
(0 < len_program ? len_program : 2) + (0 < len_directory ? len_directory : 2) + 2 + /* Unknown (2) */ |
| 186 |
2 + /* Client ip length */ |
| 187 |
len_ip + /* Client ip */ |
| 188 |
2 + /* DLL string length */ |
| 189 |
len_dll + /* DLL string */ |
| 190 |
2 + /* Unknown */ |
| 191 |
2 + /* Unknown */ |
| 192 |
64 + /* Time zone #0 */ |
| 193 |
2 + /* Unknown */ |
| 194 |
64 + /* Time zone #1 */ |
| 195 |
32; /* Unknown */ |
| 196 |
|
| 197 |
s = sec_init(sec_flags, packetlen); |
| 198 |
DEBUG_RDP5(("Called sec_init with packetlen %d\n", packetlen)); |
| 199 |
|
| 200 |
out_uint32(s, 0); /* Unknown */ |
| 201 |
out_uint32_le(s, flags); |
| 202 |
out_uint16_le(s, len_domain); |
| 203 |
out_uint16_le(s, len_user); |
| 204 |
if (flags & RDP_LOGON_AUTO) |
| 205 |
{ |
| 206 |
out_uint16_le(s, len_password); |
| 207 |
|
| 208 |
} |
| 209 |
if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO)) |
| 210 |
{ |
| 211 |
out_uint16_le(s, 0); |
| 212 |
} |
| 213 |
out_uint16_le(s, len_program); |
| 214 |
out_uint16_le(s, len_directory); |
| 215 |
if (0 < len_domain) |
| 216 |
rdp_out_unistr(s, domain, len_domain); |
| 217 |
else |
| 218 |
out_uint16_le(s, 0); |
| 219 |
rdp_out_unistr(s, user, len_user); |
| 220 |
if (flags & RDP_LOGON_AUTO) |
| 221 |
{ |
| 222 |
rdp_out_unistr(s, password, len_password); |
| 223 |
} |
| 224 |
if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO)) |
| 225 |
{ |
| 226 |
out_uint16_le(s, 0); |
| 227 |
} |
| 228 |
if (0 < len_program) |
| 229 |
{ |
| 230 |
rdp_out_unistr(s, program, len_program); |
| 231 |
|
| 232 |
} |
| 233 |
else |
| 234 |
{ |
| 235 |
out_uint16_le(s, 0); |
| 236 |
} |
| 237 |
if (0 < len_directory) |
| 238 |
{ |
| 239 |
rdp_out_unistr(s, directory, len_directory); |
| 240 |
} |
| 241 |
else |
| 242 |
{ |
| 243 |
out_uint16_le(s, 0); |
| 244 |
} |
| 245 |
out_uint16_le(s, 2); |
| 246 |
out_uint16_le(s, len_ip + 2); /* Length of client ip */ |
| 247 |
rdp_out_unistr(s, "127.0.0.1", len_ip); |
| 248 |
out_uint16_le(s, len_dll + 2); |
| 249 |
rdp_out_unistr(s, "C:\\WINNT\\System32\\mstscax.dll", len_dll); |
| 250 |
/* |
| 251 |
out_uint16_le(s, tz_offset/60); |
| 252 |
out_uint16_le(s, 0x0000); |
| 253 |
*/ |
| 254 |
out_uint16_le(s, 0xffc4); |
| 255 |
out_uint16_le(s, 0xffff); |
| 256 |
|
| 257 |
rdp_out_unistr(s, "GTB, normaltid", 2 * strlen("GTB, normaltid")); |
| 258 |
out_uint8s(s, 62 - 2 * strlen("GTB, normaltid")); |
| 259 |
|
| 260 |
|
| 261 |
out_uint32_le(s, 0x0a0000); |
| 262 |
out_uint32_le(s, 0x050000); |
| 263 |
out_uint32_le(s, 3); |
| 264 |
out_uint32_le(s, 0); |
| 265 |
out_uint32_le(s, 0); |
| 266 |
|
| 267 |
rdp_out_unistr(s, "GTB, sommartid", 2 * strlen("GTB, sommartid")); |
| 268 |
out_uint8s(s, 62 - 2 * strlen("GTB, sommartid")); |
| 269 |
|
| 270 |
out_uint32_le(s, 0x30000); |
| 271 |
out_uint32_le(s, 0x050000); |
| 272 |
out_uint32_le(s, 2); |
| 273 |
out_uint32(s, 0); |
| 274 |
out_uint32_le(s, 0xffffffc4); |
| 275 |
out_uint32_le(s, 0xfffffffe); |
| 276 |
out_uint32_le(s, 0x0f); |
| 277 |
out_uint32(s, 0); |
| 278 |
|
| 279 |
|
| 280 |
} |
| 281 |
s_mark_end(s); |
| 282 |
sec_send(s, sec_flags); |
| 283 |
} |
| 284 |
|
| 285 |
/* Send a control PDU */ |
| 286 |
static void |
| 287 |
rdp_send_control(uint16 action) |
| 288 |
{ |
| 289 |
STREAM s; |
| 290 |
|
| 291 |
s = rdp_init_data(8); |
| 292 |
|
| 293 |
out_uint16_le(s, action); |
| 294 |
out_uint16(s, 0); /* userid */ |
| 295 |
out_uint32(s, 0); /* control id */ |
| 296 |
|
| 297 |
s_mark_end(s); |
| 298 |
rdp_send_data(s, RDP_DATA_PDU_CONTROL); |
| 299 |
} |
| 300 |
|
| 301 |
/* Send a synchronisation PDU */ |
| 302 |
static void |
| 303 |
rdp_send_synchronise(void) |
| 304 |
{ |
| 305 |
STREAM s; |
| 306 |
|
| 307 |
s = rdp_init_data(4); |
| 308 |
|
| 309 |
out_uint16_le(s, 1); /* type */ |
| 310 |
out_uint16_le(s, 1002); |
| 311 |
|
| 312 |
s_mark_end(s); |
| 313 |
rdp_send_data(s, RDP_DATA_PDU_SYNCHRONISE); |
| 314 |
} |
| 315 |
|
| 316 |
/* Send a single input event */ |
| 317 |
void |
| 318 |
rdp_send_input(uint32 time, uint16 message_type, uint16 device_flags, uint16 param1, uint16 param2) |
| 319 |
{ |
| 320 |
STREAM s; |
| 321 |
|
| 322 |
s = rdp_init_data(16); |
| 323 |
|
| 324 |
out_uint16_le(s, 1); /* number of events */ |
| 325 |
out_uint16(s, 0); /* pad */ |
| 326 |
|
| 327 |
out_uint32_le(s, time); |
| 328 |
out_uint16_le(s, message_type); |
| 329 |
out_uint16_le(s, device_flags); |
| 330 |
out_uint16_le(s, param1); |
| 331 |
out_uint16_le(s, param2); |
| 332 |
|
| 333 |
s_mark_end(s); |
| 334 |
rdp_send_data(s, RDP_DATA_PDU_INPUT); |
| 335 |
} |
| 336 |
|
| 337 |
/* Send an (empty) font information PDU */ |
| 338 |
static void |
| 339 |
rdp_send_fonts(uint16 seq) |
| 340 |
{ |
| 341 |
STREAM s; |
| 342 |
|
| 343 |
s = rdp_init_data(8); |
| 344 |
|
| 345 |
out_uint16(s, 0); /* number of fonts */ |
| 346 |
out_uint16_le(s, 0x3e); /* unknown */ |
| 347 |
out_uint16_le(s, seq); /* unknown */ |
| 348 |
out_uint16_le(s, 0x32); /* entry size */ |
| 349 |
|
| 350 |
s_mark_end(s); |
| 351 |
rdp_send_data(s, RDP_DATA_PDU_FONT2); |
| 352 |
} |
| 353 |
|
| 354 |
/* Output general capability set */ |
| 355 |
static void |
| 356 |
rdp_out_general_caps(STREAM s) |
| 357 |
{ |
| 358 |
out_uint16_le(s, RDP_CAPSET_GENERAL); |
| 359 |
out_uint16_le(s, RDP_CAPLEN_GENERAL); |
| 360 |
|
| 361 |
out_uint16_le(s, 1); /* OS major type */ |
| 362 |
out_uint16_le(s, 3); /* OS minor type */ |
| 363 |
out_uint16_le(s, 0x200); /* Protocol version */ |
| 364 |
out_uint16(s, 0); /* Pad */ |
| 365 |
out_uint16(s, 0); /* Compression types */ |
| 366 |
out_uint16_le(s, g_use_rdp5 ? 0x40d : 0); |
| 367 |
/* Pad, according to T.128. 0x40d seems to |
| 368 |
trigger |
| 369 |
the server to start sending RDP5 packets. |
| 370 |
However, the value is 0x1d04 with W2KTSK and |
| 371 |
NT4MS. Hmm.. Anyway, thankyou, Microsoft, |
| 372 |
for sending such information in a padding |
| 373 |
field.. */ |
| 374 |
out_uint16(s, 0); /* Update capability */ |
| 375 |
out_uint16(s, 0); /* Remote unshare capability */ |
| 376 |
out_uint16(s, 0); /* Compression level */ |
| 377 |
out_uint16(s, 0); /* Pad */ |
| 378 |
} |
| 379 |
|
| 380 |
/* Output bitmap capability set */ |
| 381 |
static void |
| 382 |
rdp_out_bitmap_caps(STREAM s) |
| 383 |
{ |
| 384 |
out_uint16_le(s, RDP_CAPSET_BITMAP); |
| 385 |
out_uint16_le(s, RDP_CAPLEN_BITMAP); |
| 386 |
|
| 387 |
out_uint16_le(s, 8); /* Preferred BPP */ |
| 388 |
out_uint16_le(s, 1); /* Receive 1 BPP */ |
| 389 |
out_uint16_le(s, 1); /* Receive 4 BPP */ |
| 390 |
out_uint16_le(s, 1); /* Receive 8 BPP */ |
| 391 |
out_uint16_le(s, 800); /* Desktop width */ |
| 392 |
out_uint16_le(s, 600); /* Desktop height */ |
| 393 |
out_uint16(s, 0); /* Pad */ |
| 394 |
out_uint16(s, 0); /* Allow resize */ |
| 395 |
out_uint16_le(s, g_bitmap_compression ? 1 : 0); /* Support compression */ |
| 396 |
out_uint16(s, 0); /* Unknown */ |
| 397 |
out_uint16_le(s, 1); /* Unknown */ |
| 398 |
out_uint16(s, 0); /* Pad */ |
| 399 |
} |
| 400 |
|
| 401 |
/* Output order capability set */ |
| 402 |
static void |
| 403 |
rdp_out_order_caps(STREAM s) |
| 404 |
{ |
| 405 |
uint8 order_caps[32]; |
| 406 |
|
| 407 |
|
| 408 |
memset(order_caps, 0, 32); |
| 409 |
order_caps[0] = 1; /* dest blt */ |
| 410 |
order_caps[1] = 1; /* pat blt */ |
| 411 |
order_caps[2] = 1; /* screen blt */ |
| 412 |
order_caps[3] = 1; /* required for memblt? */ |
| 413 |
order_caps[8] = 1; /* line */ |
| 414 |
order_caps[9] = 1; /* line */ |
| 415 |
order_caps[10] = 1; /* rect */ |
| 416 |
order_caps[11] = (g_desktop_save == False ? 0 : 1); /* desksave */ |
| 417 |
order_caps[13] = 1; /* memblt */ |
| 418 |
order_caps[14] = 1; /* triblt */ |
| 419 |
order_caps[22] = 1; /* polyline */ |
| 420 |
order_caps[27] = 1; /* text2 */ |
| 421 |
out_uint16_le(s, RDP_CAPSET_ORDER); |
| 422 |
out_uint16_le(s, RDP_CAPLEN_ORDER); |
| 423 |
|
| 424 |
out_uint8s(s, 20); /* Terminal desc, pad */ |
| 425 |
out_uint16_le(s, 1); /* Cache X granularity */ |
| 426 |
out_uint16_le(s, 20); /* Cache Y granularity */ |
| 427 |
out_uint16(s, 0); /* Pad */ |
| 428 |
out_uint16_le(s, 1); /* Max order level */ |
| 429 |
out_uint16_le(s, 0x147); /* Number of fonts */ |
| 430 |
out_uint16_le(s, 0x2a); /* Capability flags */ |
| 431 |
out_uint8p(s, order_caps, 32); /* Orders supported */ |
| 432 |
out_uint16_le(s, 0x6a1); /* Text capability flags */ |
| 433 |
out_uint8s(s, 6); /* Pad */ |
| 434 |
out_uint32_le(s, g_desktop_save == False ? 0 : 0x38400); /* Desktop cache size */ |
| 435 |
out_uint32(s, 0); /* Unknown */ |
| 436 |
out_uint32_le(s, 0x4e4); /* Unknown */ |
| 437 |
} |
| 438 |
|
| 439 |
/* Output bitmap cache capability set */ |
| 440 |
static void |
| 441 |
rdp_out_bmpcache_caps(STREAM s) |
| 442 |
{ |
| 443 |
int Bpp; |
| 444 |
out_uint16_le(s, RDP_CAPSET_BMPCACHE); |
| 445 |
out_uint16_le(s, RDP_CAPLEN_BMPCACHE); |
| 446 |
|
| 447 |
Bpp = (g_server_bpp + 7) / 8; |
| 448 |
out_uint8s(s, 24); /* unused */ |
| 449 |
out_uint16_le(s, 0x258); /* entries */ |
| 450 |
out_uint16_le(s, 0x100 * Bpp); /* max cell size */ |
| 451 |
out_uint16_le(s, 0x12c); /* entries */ |
| 452 |
out_uint16_le(s, 0x400 * Bpp); /* max cell size */ |
| 453 |
out_uint16_le(s, 0x106); /* entries */ |
| 454 |
out_uint16_le(s, 0x1000 * Bpp); /* max cell size */ |
| 455 |
} |
| 456 |
|
| 457 |
/* Output control capability set */ |
| 458 |
static void |
| 459 |
rdp_out_control_caps(STREAM s) |
| 460 |
{ |
| 461 |
out_uint16_le(s, RDP_CAPSET_CONTROL); |
| 462 |
out_uint16_le(s, RDP_CAPLEN_CONTROL); |
| 463 |
|
| 464 |
out_uint16(s, 0); /* Control capabilities */ |
| 465 |
out_uint16(s, 0); /* Remote detach */ |
| 466 |
out_uint16_le(s, 2); /* Control interest */ |
| 467 |
out_uint16_le(s, 2); /* Detach interest */ |
| 468 |
} |
| 469 |
|
| 470 |
/* Output activation capability set */ |
| 471 |
static void |
| 472 |
rdp_out_activate_caps(STREAM s) |
| 473 |
{ |
| 474 |
out_uint16_le(s, RDP_CAPSET_ACTIVATE); |
| 475 |
out_uint16_le(s, RDP_CAPLEN_ACTIVATE); |
| 476 |
|
| 477 |
out_uint16(s, 0); /* Help key */ |
| 478 |
out_uint16(s, 0); /* Help index key */ |
| 479 |
out_uint16(s, 0); /* Extended help key */ |
| 480 |
out_uint16(s, 0); /* Window activate */ |
| 481 |
} |
| 482 |
|
| 483 |
/* Output pointer capability set */ |
| 484 |
static void |
| 485 |
rdp_out_pointer_caps(STREAM s) |
| 486 |
{ |
| 487 |
out_uint16_le(s, RDP_CAPSET_POINTER); |
| 488 |
out_uint16_le(s, RDP_CAPLEN_POINTER); |
| 489 |
|
| 490 |
out_uint16(s, 0); /* Colour pointer */ |
| 491 |
out_uint16_le(s, 20); /* Cache size */ |
| 492 |
} |
| 493 |
|
| 494 |
/* Output share capability set */ |
| 495 |
static void |
| 496 |
rdp_out_share_caps(STREAM s) |
| 497 |
{ |
| 498 |
out_uint16_le(s, RDP_CAPSET_SHARE); |
| 499 |
out_uint16_le(s, RDP_CAPLEN_SHARE); |
| 500 |
|
| 501 |
out_uint16(s, 0); /* userid */ |
| 502 |
out_uint16(s, 0); /* pad */ |
| 503 |
} |
| 504 |
|
| 505 |
/* Output colour cache capability set */ |
| 506 |
static void |
| 507 |
rdp_out_colcache_caps(STREAM s) |
| 508 |
{ |
| 509 |
out_uint16_le(s, RDP_CAPSET_COLCACHE); |
| 510 |
out_uint16_le(s, RDP_CAPLEN_COLCACHE); |
| 511 |
|
| 512 |
out_uint16_le(s, 6); /* cache size */ |
| 513 |
out_uint16(s, 0); /* pad */ |
| 514 |
} |
| 515 |
|
| 516 |
static uint8 canned_caps[] = { |
| 517 |
0x01, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00, 0x04, |
| 518 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, |
| 519 |
0x00, 0x00, 0x00, 0x00, 0x00, |
| 520 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 521 |
0x00, 0x00, 0x00, 0x00, 0x00, |
| 522 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 523 |
0x00, 0x00, 0x00, 0x00, 0x00, |
| 524 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 525 |
0x00, 0x00, 0x00, 0x00, 0x00, |
| 526 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 527 |
0x0C, 0x00, 0x08, 0x00, 0x01, |
| 528 |
0x00, 0x00, 0x00, 0x0E, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00, |
| 529 |
0x10, 0x00, 0x34, 0x00, 0xFE, |
| 530 |
0x00, 0x04, 0x00, 0xFE, 0x00, 0x04, 0x00, 0xFE, 0x00, 0x08, 0x00, |
| 531 |
0xFE, 0x00, 0x08, 0x00, 0xFE, |
| 532 |
0x00, 0x10, 0x00, 0xFE, 0x00, 0x20, 0x00, 0xFE, 0x00, 0x40, 0x00, |
| 533 |
0xFE, 0x00, 0x80, 0x00, 0xFE, |
| 534 |
0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x01, |
| 535 |
0x02, 0x00, 0x00, 0x00 |
| 536 |
}; |
| 537 |
|
| 538 |
/* Output unknown capability sets (number 13, 12, 14 and 16) */ |
| 539 |
static void |
| 540 |
rdp_out_unknown_caps(STREAM s) |
| 541 |
{ |
| 542 |
out_uint16_le(s, RDP_CAPSET_UNKNOWN); |
| 543 |
out_uint16_le(s, 0x58); |
| 544 |
|
| 545 |
out_uint8p(s, canned_caps, RDP_CAPLEN_UNKNOWN - 4); |
| 546 |
} |
| 547 |
|
| 548 |
#define RDP5_FLAG 0x0030 |
| 549 |
/* Send a confirm active PDU */ |
| 550 |
static void |
| 551 |
rdp_send_confirm_active(void) |
| 552 |
{ |
| 553 |
STREAM s; |
| 554 |
uint32 sec_flags = g_encryption ? (RDP5_FLAG | SEC_ENCRYPT) : RDP5_FLAG; |
| 555 |
uint16 caplen = |
| 556 |
RDP_CAPLEN_GENERAL + RDP_CAPLEN_BITMAP + RDP_CAPLEN_ORDER + |
| 557 |
RDP_CAPLEN_BMPCACHE + RDP_CAPLEN_COLCACHE + |
| 558 |
RDP_CAPLEN_ACTIVATE + RDP_CAPLEN_CONTROL + |
| 559 |
RDP_CAPLEN_POINTER + RDP_CAPLEN_SHARE + RDP_CAPLEN_UNKNOWN + 4 /* w2k fix, why? */ ; |
| 560 |
|
| 561 |
s = sec_init(sec_flags, 6 + 14 + caplen + sizeof(RDP_SOURCE)); |
| 562 |
|
| 563 |
out_uint16_le(s, 2 + 14 + caplen + sizeof(RDP_SOURCE)); |
| 564 |
out_uint16_le(s, (RDP_PDU_CONFIRM_ACTIVE | 0x10)); /* Version 1 */ |
| 565 |
out_uint16_le(s, (g_mcs_userid + 1001)); |
| 566 |
|
| 567 |
out_uint32_le(s, g_rdp_shareid); |
| 568 |
out_uint16_le(s, 0x3ea); /* userid */ |
| 569 |
out_uint16_le(s, sizeof(RDP_SOURCE)); |
| 570 |
out_uint16_le(s, caplen); |
| 571 |
|
| 572 |
out_uint8p(s, RDP_SOURCE, sizeof(RDP_SOURCE)); |
| 573 |
out_uint16_le(s, 0xd); /* num_caps */ |
| 574 |
out_uint8s(s, 2); /* pad */ |
| 575 |
|
| 576 |
rdp_out_general_caps(s); |
| 577 |
rdp_out_bitmap_caps(s); |
| 578 |
rdp_out_order_caps(s); |
| 579 |
rdp_out_bmpcache_caps(s); |
| 580 |
rdp_out_colcache_caps(s); |
| 581 |
rdp_out_activate_caps(s); |
| 582 |
rdp_out_control_caps(s); |
| 583 |
rdp_out_pointer_caps(s); |
| 584 |
rdp_out_share_caps(s); |
| 585 |
rdp_out_unknown_caps(s); |
| 586 |
|
| 587 |
s_mark_end(s); |
| 588 |
sec_send(s, sec_flags); |
| 589 |
} |
| 590 |
|
| 591 |
/* Respond to a demand active PDU */ |
| 592 |
static void |
| 593 |
process_demand_active(STREAM s) |
| 594 |
{ |
| 595 |
uint8 type; |
| 596 |
|
| 597 |
in_uint32_le(s, g_rdp_shareid); |
| 598 |
|
| 599 |
DEBUG(("DEMAND_ACTIVE(id=0x%x)\n", g_rdp_shareid)); |
| 600 |
|
| 601 |
rdp_send_confirm_active(); |
| 602 |
rdp_send_synchronise(); |
| 603 |
rdp_send_control(RDP_CTL_COOPERATE); |
| 604 |
rdp_send_control(RDP_CTL_REQUEST_CONTROL); |
| 605 |
rdp_recv(&type); /* RDP_PDU_SYNCHRONIZE */ |
| 606 |
rdp_recv(&type); /* RDP_CTL_COOPERATE */ |
| 607 |
rdp_recv(&type); /* RDP_CTL_GRANT_CONTROL */ |
| 608 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(read_keyboard_state()), 0); |
| 609 |
rdp_send_fonts(1); |
| 610 |
rdp_send_fonts(2); |
| 611 |
rdp_recv(&type); /* RDP_PDU_UNKNOWN 0x28 */ |
| 612 |
reset_order_state(); |
| 613 |
} |
| 614 |
|
| 615 |
/* Process a colour pointer PDU */ |
| 616 |
void |
| 617 |
process_colour_pointer_pdu(STREAM s) |
| 618 |
{ |
| 619 |
uint16 x, y, width, height, cache_idx, masklen, datalen; |
| 620 |
uint8 *mask, *data; |
| 621 |
HCURSOR cursor; |
| 622 |
|
| 623 |
in_uint16_le(s, cache_idx); |
| 624 |
in_uint16_le(s, x); |
| 625 |
in_uint16_le(s, y); |
| 626 |
in_uint16_le(s, width); |
| 627 |
in_uint16_le(s, height); |
| 628 |
in_uint16_le(s, masklen); |
| 629 |
in_uint16_le(s, datalen); |
| 630 |
in_uint8p(s, data, datalen); |
| 631 |
in_uint8p(s, mask, masklen); |
| 632 |
cursor = ui_create_cursor(x, y, width, height, mask, data); |
| 633 |
ui_set_cursor(cursor); |
| 634 |
cache_put_cursor(cache_idx, cursor); |
| 635 |
} |
| 636 |
|
| 637 |
/* Process a cached pointer PDU */ |
| 638 |
void |
| 639 |
process_cached_pointer_pdu(STREAM s) |
| 640 |
{ |
| 641 |
uint16 cache_idx; |
| 642 |
|
| 643 |
in_uint16_le(s, cache_idx); |
| 644 |
ui_set_cursor(cache_get_cursor(cache_idx)); |
| 645 |
} |
| 646 |
|
| 647 |
/* Process a system pointer PDU */ |
| 648 |
void |
| 649 |
process_system_pointer_pdu(STREAM s) |
| 650 |
{ |
| 651 |
uint16 system_pointer_type; |
| 652 |
|
| 653 |
in_uint16(s, system_pointer_type); |
| 654 |
switch (system_pointer_type) |
| 655 |
{ |
| 656 |
case RDP_NULL_POINTER: |
| 657 |
ui_set_null_cursor(); |
| 658 |
break; |
| 659 |
|
| 660 |
default: |
| 661 |
unimpl("System pointer message 0x%x\n", system_pointer_type); |
| 662 |
} |
| 663 |
} |
| 664 |
|
| 665 |
/* Process a pointer PDU */ |
| 666 |
static void |
| 667 |
process_pointer_pdu(STREAM s) |
| 668 |
{ |
| 669 |
uint16 message_type; |
| 670 |
uint16 x, y; |
| 671 |
|
| 672 |
in_uint16_le(s, message_type); |
| 673 |
in_uint8s(s, 2); /* pad */ |
| 674 |
|
| 675 |
switch (message_type) |
| 676 |
{ |
| 677 |
case RDP_POINTER_MOVE: |
| 678 |
in_uint16_le(s, x); |
| 679 |
in_uint16_le(s, y); |
| 680 |
if (s_check(s)) |
| 681 |
ui_move_pointer(x, y); |
| 682 |
break; |
| 683 |
|
| 684 |
case RDP_POINTER_COLOR: |
| 685 |
process_colour_pointer_pdu(s); |
| 686 |
break; |
| 687 |
|
| 688 |
case RDP_POINTER_CACHED: |
| 689 |
process_cached_pointer_pdu(s); |
| 690 |
break; |
| 691 |
|
| 692 |
case RDP_POINTER_SYSTEM: |
| 693 |
process_system_pointer_pdu(s); |
| 694 |
break; |
| 695 |
|
| 696 |
default: |
| 697 |
unimpl("Pointer message 0x%x\n", message_type); |
| 698 |
} |
| 699 |
} |
| 700 |
|
| 701 |
/* Process bitmap updates */ |
| 702 |
void |
| 703 |
process_bitmap_updates(STREAM s) |
| 704 |
{ |
| 705 |
uint16 num_updates; |
| 706 |
uint16 left, top, right, bottom, width, height; |
| 707 |
uint16 cx, cy, bpp, Bpp, compress, bufsize, size; |
| 708 |
uint8 *data, *bmpdata; |
| 709 |
int i; |
| 710 |
|
| 711 |
in_uint16_le(s, num_updates); |
| 712 |
|
| 713 |
for (i = 0; i < num_updates; i++) |
| 714 |
{ |
| 715 |
in_uint16_le(s, left); |
| 716 |
in_uint16_le(s, top); |
| 717 |
in_uint16_le(s, right); |
| 718 |
in_uint16_le(s, bottom); |
| 719 |
in_uint16_le(s, width); |
| 720 |
in_uint16_le(s, height); |
| 721 |
in_uint16_le(s, bpp); |
| 722 |
Bpp = (bpp + 7) / 8; |
| 723 |
in_uint16_le(s, compress); |
| 724 |
in_uint16_le(s, bufsize); |
| 725 |
|
| 726 |
cx = right - left + 1; |
| 727 |
cy = bottom - top + 1; |
| 728 |
|
| 729 |
DEBUG(("BITMAP_UPDATE(l=%d,t=%d,r=%d,b=%d,w=%d,h=%d,Bpp=%d,cmp=%d)\n", |
| 730 |
left, top, right, bottom, width, height, Bpp, compress)); |
| 731 |
|
| 732 |
/* Server may limit bpp - this is how we find out */ |
| 733 |
if (g_server_bpp != bpp) |
| 734 |
{ |
| 735 |
warning("Server limited colour depth to %d bits\n", bpp); |
| 736 |
g_server_bpp = bpp; |
| 737 |
} |
| 738 |
|
| 739 |
if (!compress) |
| 740 |
{ |
| 741 |
int y; |
| 742 |
bmpdata = (uint8 *) xmalloc(width * height * Bpp); |
| 743 |
for (y = 0; y < height; y++) |
| 744 |
{ |
| 745 |
in_uint8a(s, &bmpdata[(height - y - 1) * (width * Bpp)], |
| 746 |
width * Bpp); |
| 747 |
} |
| 748 |
ui_paint_bitmap(left, top, cx, cy, width, height, bmpdata); |
| 749 |
xfree(bmpdata); |
| 750 |
continue; |
| 751 |
} |
| 752 |
|
| 753 |
|
| 754 |
if (compress & 0x400) |
| 755 |
{ |
| 756 |
size = bufsize; |
| 757 |
} |
| 758 |
else |
| 759 |
{ |
| 760 |
in_uint8s(s, 2); /* pad */ |
| 761 |
in_uint16_le(s, size); |
| 762 |
in_uint8s(s, 4); /* line_size, final_size */ |
| 763 |
} |
| 764 |
in_uint8p(s, data, size); |
| 765 |
bmpdata = (uint8 *) xmalloc(width * height * Bpp); |
| 766 |
if (bitmap_decompress(bmpdata, width, height, data, size, Bpp)) |
| 767 |
{ |
| 768 |
ui_paint_bitmap(left, top, cx, cy, width, height, bmpdata); |
| 769 |
} |
| 770 |
else |
| 771 |
{ |
| 772 |
DEBUG_RDP5(("Failed to decompress data\n")); |
| 773 |
} |
| 774 |
|
| 775 |
xfree(bmpdata); |
| 776 |
} |
| 777 |
} |
| 778 |
|
| 779 |
/* Process a palette update */ |
| 780 |
void |
| 781 |
process_palette(STREAM s) |
| 782 |
{ |
| 783 |
COLOURENTRY *entry; |
| 784 |
COLOURMAP map; |
| 785 |
HCOLOURMAP hmap; |
| 786 |
int i; |
| 787 |
|
| 788 |
in_uint8s(s, 2); /* pad */ |
| 789 |
in_uint16_le(s, map.ncolours); |
| 790 |
in_uint8s(s, 2); /* pad */ |
| 791 |
|
| 792 |
map.colours = (COLOURENTRY *) xmalloc(sizeof(COLOURENTRY) * map.ncolours); |
| 793 |
|
| 794 |
DEBUG(("PALETTE(c=%d)\n", map.ncolours)); |
| 795 |
|
| 796 |
for (i = 0; i < map.ncolours; i++) |
| 797 |
{ |
| 798 |
entry = &map.colours[i]; |
| 799 |
in_uint8(s, entry->red); |
| 800 |
in_uint8(s, entry->green); |
| 801 |
in_uint8(s, entry->blue); |
| 802 |
} |
| 803 |
|
| 804 |
hmap = ui_create_colourmap(&map); |
| 805 |
ui_set_colourmap(hmap); |
| 806 |
|
| 807 |
xfree(map.colours); |
| 808 |
} |
| 809 |
|
| 810 |
/* Process an update PDU */ |
| 811 |
static void |
| 812 |
process_update_pdu(STREAM s) |
| 813 |
{ |
| 814 |
uint16 update_type, count; |
| 815 |
|
| 816 |
in_uint16_le(s, update_type); |
| 817 |
|
| 818 |
switch (update_type) |
| 819 |
{ |
| 820 |
case RDP_UPDATE_ORDERS: |
| 821 |
in_uint8s(s, 2); /* pad */ |
| 822 |
in_uint16_le(s, count); |
| 823 |
in_uint8s(s, 2); /* pad */ |
| 824 |
process_orders(s, count); |
| 825 |
break; |
| 826 |
|
| 827 |
case RDP_UPDATE_BITMAP: |
| 828 |
process_bitmap_updates(s); |
| 829 |
break; |
| 830 |
|
| 831 |
case RDP_UPDATE_PALETTE: |
| 832 |
process_palette(s); |
| 833 |
break; |
| 834 |
|
| 835 |
case RDP_UPDATE_SYNCHRONIZE: |
| 836 |
break; |
| 837 |
|
| 838 |
default: |
| 839 |
unimpl("update %d\n", update_type); |
| 840 |
} |
| 841 |
|
| 842 |
} |
| 843 |
|
| 844 |
/* Process data PDU */ |
| 845 |
static void |
| 846 |
process_data_pdu(STREAM s) |
| 847 |
{ |
| 848 |
uint8 data_pdu_type; |
| 849 |
|
| 850 |
in_uint8s(s, 8); /* shareid, pad, streamid, length */ |
| 851 |
in_uint8(s, data_pdu_type); |
| 852 |
in_uint8s(s, 3); /* compress_type, compress_len */ |
| 853 |
|
| 854 |
switch (data_pdu_type) |
| 855 |
{ |
| 856 |
case RDP_DATA_PDU_UPDATE: |
| 857 |
process_update_pdu(s); |
| 858 |
break; |
| 859 |
|
| 860 |
case RDP_DATA_PDU_POINTER: |
| 861 |
process_pointer_pdu(s); |
| 862 |
break; |
| 863 |
|
| 864 |
case RDP_DATA_PDU_BELL: |
| 865 |
ui_bell(); |
| 866 |
break; |
| 867 |
|
| 868 |
case RDP_DATA_PDU_LOGON: |
| 869 |
DEBUG(("Received Logon PDU\n")); |
| 870 |
/* User logged on */ |
| 871 |
break; |
| 872 |
|
| 873 |
case RDP_DATA_PDU_DISCONNECT: |
| 874 |
/* Normally received when user logs out or disconnects from a |
| 875 |
console session on Windows XP and 2003 Server */ |
| 876 |
DEBUG(("Received disconnect PDU\n")); |
| 877 |
break; |
| 878 |
|
| 879 |
default: |
| 880 |
unimpl("data PDU %d\n", data_pdu_type); |
| 881 |
} |
| 882 |
} |
| 883 |
|
| 884 |
/* Process incoming packets */ |
| 885 |
BOOL |
| 886 |
rdp_main_loop(void) |
| 887 |
{ |
| 888 |
uint8 type; |
| 889 |
STREAM s; |
| 890 |
|
| 891 |
while ((s = rdp_recv(&type)) != NULL) |
| 892 |
{ |
| 893 |
switch (type) |
| 894 |
{ |
| 895 |
case RDP_PDU_DEMAND_ACTIVE: |
| 896 |
process_demand_active(s); |
| 897 |
break; |
| 898 |
|
| 899 |
case RDP_PDU_DEACTIVATE: |
| 900 |
DEBUG(("RDP_PDU_DEACTIVATE\n")); |
| 901 |
/* We thought we could detect a clean |
| 902 |
shutdown of the session by this |
| 903 |
packet, but it seems Windows 2003 |
| 904 |
is sending us one of these when we |
| 905 |
reconnect to a disconnected session |
| 906 |
return True; */ |
| 907 |
break; |
| 908 |
|
| 909 |
case RDP_PDU_DATA: |
| 910 |
process_data_pdu(s); |
| 911 |
break; |
| 912 |
|
| 913 |
case 0: |
| 914 |
break; |
| 915 |
|
| 916 |
default: |
| 917 |
unimpl("PDU %d\n", type); |
| 918 |
} |
| 919 |
} |
| 920 |
return True; |
| 921 |
/* We want to detect if we got a clean shutdown, but we |
| 922 |
can't. Se above. |
| 923 |
return False; */ |
| 924 |
} |
| 925 |
|
| 926 |
/* Establish a connection up to the RDP layer */ |
| 927 |
BOOL |
| 928 |
rdp_connect(char *server, uint32 flags, char *domain, char *password, |
| 929 |
char *command, char *directory) |
| 930 |
{ |
| 931 |
if (!sec_connect(server, g_username)) |
| 932 |
return False; |
| 933 |
|
| 934 |
rdp_send_logon_info(flags, domain, g_username, password, command, directory); |
| 935 |
return True; |
| 936 |
} |
| 937 |
|
| 938 |
/* Disconnect from the RDP layer */ |
| 939 |
void |
| 940 |
rdp_disconnect(void) |
| 941 |
{ |
| 942 |
sec_disconnect(); |
| 943 |
} |
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