FreeRDP
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rdp.c
1
21#include <freerdp/config.h>
22
23#include "settings.h"
24
25#include <winpr/crt.h>
26#include <winpr/string.h>
27#include <winpr/synch.h>
28#include <winpr/assert.h>
29#include <winpr/cast.h>
30#include <winpr/json.h>
31
32#include "rdp.h"
33
34#include "state.h"
35#include "info.h"
36#include "utils.h"
37#include "mcs.h"
38#include "redirection.h"
39
40#include <freerdp/codec/bulk.h>
41#include <freerdp/crypto/per.h>
42#include <freerdp/log.h>
43#include <freerdp/buildflags.h>
44
45#define RDP_TAG FREERDP_TAG("core.rdp")
46
47typedef struct
48{
49 const char* file;
50 const char* fkt;
51 size_t line;
52 DWORD level;
53} log_line_t;
54
55static const char* DATA_PDU_TYPE_STRINGS[80] = {
56 "?",
57 "?", /* 0x00 - 0x01 */
58 "Update", /* 0x02 */
59 "?",
60 "?",
61 "?",
62 "?",
63 "?",
64 "?",
65 "?",
66 "?", /* 0x03 - 0x0A */
67 "?",
68 "?",
69 "?",
70 "?",
71 "?",
72 "?",
73 "?",
74 "?",
75 "?", /* 0x0B - 0x13 */
76 "Control", /* 0x14 */
77 "?",
78 "?",
79 "?",
80 "?",
81 "?",
82 "?", /* 0x15 - 0x1A */
83 "Pointer", /* 0x1B */
84 "Input", /* 0x1C */
85 "?",
86 "?", /* 0x1D - 0x1E */
87 "Synchronize", /* 0x1F */
88 "?", /* 0x20 */
89 "Refresh Rect", /* 0x21 */
90 "Play Sound", /* 0x22 */
91 "Suppress Output", /* 0x23 */
92 "Shutdown Request", /* 0x24 */
93 "Shutdown Denied", /* 0x25 */
94 "Save Session Info", /* 0x26 */
95 "Font List", /* 0x27 */
96 "Font Map", /* 0x28 */
97 "Set Keyboard Indicators", /* 0x29 */
98 "?", /* 0x2A */
99 "Bitmap Cache Persistent List", /* 0x2B */
100 "Bitmap Cache Error", /* 0x2C */
101 "Set Keyboard IME Status", /* 0x2D */
102 "Offscreen Cache Error", /* 0x2E */
103 "Set Error Info", /* 0x2F */
104 "Draw Nine Grid Error", /* 0x30 */
105 "Draw GDI+ Error", /* 0x31 */
106 "ARC Status", /* 0x32 */
107 "?",
108 "?",
109 "?", /* 0x33 - 0x35 */
110 "Status Info", /* 0x36 */
111 "Monitor Layout", /* 0x37 */
112 "FrameAcknowledge",
113 "?",
114 "?", /* 0x38 - 0x40 */
115 "?",
116 "?",
117 "?",
118 "?",
119 "?",
120 "?" /* 0x41 - 0x46 */
121};
122
123#define rdp_check_monitor_layout_pdu_state(rdp, expected) \
124 rdp_check_monitor_layout_pdu_state_(rdp, expected, __FILE__, __func__, __LINE__)
125
126static BOOL rdp_check_monitor_layout_pdu_state_(const rdpRdp* rdp, BOOL expected, const char* file,
127 const char* fkt, size_t line)
128{
129 WINPR_ASSERT(rdp);
130 if (expected != rdp->monitor_layout_pdu)
131 {
132 const DWORD log_level = WLOG_ERROR;
133 if (WLog_IsLevelActive(rdp->log, log_level))
134 {
135 WLog_PrintTextMessage(rdp->log, log_level, line, file, fkt,
136 "Expected rdp->monitor_layout_pdu == %s",
137 expected ? "TRUE" : "FALSE");
138 }
139 return FALSE;
140 }
141 return TRUE;
142}
143
144#define rdp_set_monitor_layout_pdu_state(rdp, expected) \
145 rdp_set_monitor_layout_pdu_state_(rdp, expected, __FILE__, __func__, __LINE__)
146static BOOL rdp_set_monitor_layout_pdu_state_(rdpRdp* rdp, BOOL value, const char* file,
147 const char* fkt, size_t line)
148{
149
150 WINPR_ASSERT(rdp);
151 if (value && (value == rdp->monitor_layout_pdu))
152 {
153 const DWORD log_level = WLOG_WARN;
154 if (WLog_IsLevelActive(rdp->log, log_level))
155 {
156 WLog_PrintTextMessage(rdp->log, log_level, line, file, fkt,
157 "rdp->monitor_layout_pdu == TRUE, expected FALSE");
158 }
159 return FALSE;
160 }
161 rdp->monitor_layout_pdu = value;
162 return TRUE;
163}
164
165const char* data_pdu_type_to_string(UINT8 type)
166{
167 if (type >= ARRAYSIZE(DATA_PDU_TYPE_STRINGS))
168 return "???";
169 return DATA_PDU_TYPE_STRINGS[type];
170}
171
172static BOOL rdp_read_flow_control_pdu(rdpRdp* rdp, wStream* s, UINT16* type, UINT16* channel_id);
173static BOOL rdp_write_share_control_header(rdpRdp* rdp, wStream* s, size_t length, UINT16 type,
174 UINT16 channel_id);
175static BOOL rdp_write_share_data_header(rdpRdp* rdp, wStream* s, size_t length, BYTE type,
176 UINT32 share_id);
177
188BOOL rdp_read_security_header(rdpRdp* rdp, wStream* s, UINT16* flags, UINT16* length)
189{
190 char buffer[256] = WINPR_C_ARRAY_INIT;
191 WINPR_ASSERT(s);
192 WINPR_ASSERT(flags);
193 WINPR_ASSERT(rdp);
194
195 /* Basic Security Header */
196 if ((length && (*length < 4)))
197 {
198 WLog_Print(rdp->log, WLOG_WARN,
199 "invalid security header length, have %" PRIu16 ", must be >= 4", *length);
200 return FALSE;
201 }
202 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
203 return FALSE;
204
205 *flags = Stream_Get_UINT16(s); /* flags */
206 const uint16_t flagsHi = Stream_Get_UINT16(s); /* flagsHi (unused) */
207 if ((*flags & SEC_FLAGSHI_VALID) != 0)
208 {
209 WLog_Print(rdp->log, WLOG_WARN,
210 "[MS-RDPBCGR] 2.2.8.1.1.2.1 Basic (TS_SECURITY_HEADER) SEC_FLAGSHI_VALID field "
211 "set: flagsHi=0x%04" PRIx16,
212 flagsHi);
213 }
214 WLog_Print(rdp->log, WLOG_TRACE, "%s",
215 rdp_security_flag_string(*flags, buffer, sizeof(buffer)));
216 if (length)
217 *length -= 4;
218
219 return TRUE;
220}
221
231BOOL rdp_write_security_header(rdpRdp* rdp, wStream* s, UINT16 flags)
232{
233 char buffer[256] = WINPR_C_ARRAY_INIT;
234 WINPR_ASSERT(s);
235 WINPR_ASSERT(rdp);
236
237 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, (s), 4))
238 return FALSE;
239
240 WLog_Print(rdp->log, WLOG_TRACE, "%s", rdp_security_flag_string(flags, buffer, sizeof(buffer)));
241 /* Basic Security Header */
242 WINPR_ASSERT((flags & SEC_FLAGSHI_VALID) == 0); /* SEC_FLAGSHI_VALID is unsupported */
243 Stream_Write_UINT16(s, flags); /* flags */
244 Stream_Write_UINT16(s, 0); /* flagsHi (unused) */
245 return TRUE;
246}
247
248BOOL rdp_read_share_control_header(rdpRdp* rdp, wStream* s, UINT16* tpktLength,
249 UINT16* remainingLength, UINT16* type, UINT16* channel_id)
250{
251 UINT16 len = 0;
252 UINT16 tmp = 0;
253
254 WINPR_ASSERT(rdp);
255 WINPR_ASSERT(s);
256 WINPR_ASSERT(type);
257 WINPR_ASSERT(channel_id);
258
259 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 2))
260 return FALSE;
261
262 /* Share Control Header */
263 Stream_Read_UINT16(s, len); /* totalLength */
264
265 /* If length is 0x8000 then we actually got a flow control PDU that we should ignore
266 http://msdn.microsoft.com/en-us/library/cc240576.aspx */
267 if (len == 0x8000)
268 {
269 if (!rdp_read_flow_control_pdu(rdp, s, type, channel_id))
270 return FALSE;
271 *channel_id = 0;
272 if (tpktLength)
273 *tpktLength = 8; /* Flow control PDU is 8 bytes */
274 if (remainingLength)
275 *remainingLength = 0;
276
277 char buffer[128] = WINPR_C_ARRAY_INIT;
278 WLog_Print(rdp->log, WLOG_DEBUG,
279 "[Flow control PDU] type=%s, tpktLength=%" PRIu16 ", remainingLength=%" PRIu16,
280 pdu_type_to_str(*type, buffer, sizeof(buffer)), tpktLength ? *tpktLength : 0u,
281 remainingLength ? *remainingLength : 0u);
282 return TRUE;
283 }
284
285 if (len < 4U)
286 {
287 WLog_Print(rdp->log, WLOG_ERROR,
288 "Invalid share control header, length is %" PRIu16 ", must be >4", len);
289 return FALSE;
290 }
291
292 if (tpktLength)
293 *tpktLength = len;
294
295 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 2))
296 return FALSE;
297
298 Stream_Read_UINT16(s, tmp); /* pduType */
299 *type = tmp & 0x0F; /* type is in the 4 least significant bits */
300
301 size_t remLen = len - 4;
302 if (len > 5)
303 {
304 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 2))
305 return FALSE;
306
307 Stream_Read_UINT16(s, *channel_id); /* pduSource */
308 remLen = len - 6;
309 }
310 else
311 *channel_id = 0; /* Windows XP can send such short DEACTIVATE_ALL PDUs. */
312
313 char buffer[128] = WINPR_C_ARRAY_INIT;
314 WLog_Print(rdp->log, WLOG_DEBUG, "type=%s, tpktLength=%" PRIu16 ", remainingLength=%" PRIuz,
315 pdu_type_to_str(*type, buffer, sizeof(buffer)), len, remLen);
316 if (remainingLength)
317 {
318 WINPR_ASSERT(remLen <= UINT16_MAX);
319 *remainingLength = (UINT16)remLen;
320 }
321 return Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, remLen);
322}
323
324BOOL rdp_write_share_control_header(rdpRdp* rdp, wStream* s, size_t length, UINT16 type,
325 UINT16 channel_id)
326{
327 WINPR_ASSERT(s);
328 WINPR_ASSERT(rdp);
329 if (length > UINT16_MAX)
330 return FALSE;
331
332 if (length < RDP_PACKET_HEADER_MAX_LENGTH)
333 return FALSE;
334 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, (s), 6))
335 return FALSE;
336 length -= RDP_PACKET_HEADER_MAX_LENGTH;
337 /* Share Control Header */
338 Stream_Write_UINT16(s, WINPR_ASSERTING_INT_CAST(uint16_t, length)); /* totalLength */
339 Stream_Write_UINT16(s, WINPR_ASSERTING_INT_CAST(uint16_t, type | 0x10)); /* pduType */
340 Stream_Write_UINT16(s, WINPR_ASSERTING_INT_CAST(uint16_t, channel_id)); /* pduSource */
341 return TRUE;
342}
343
344BOOL rdp_read_share_data_header(rdpRdp* rdp, wStream* s, UINT16* length, BYTE* type,
345 UINT32* shareId, BYTE* compressedType, UINT16* compressedLength)
346{
347 WINPR_ASSERT(s);
348 WINPR_ASSERT(rdp);
349
350 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 12))
351 return FALSE;
352
353 /* Share Data Header */
354 Stream_Read_UINT32(s, *shareId); /* shareId (4 bytes) */
355 Stream_Seek_UINT8(s); /* pad1 (1 byte) */
356 Stream_Seek_UINT8(s); /* streamId (1 byte) */
357 Stream_Read_UINT16(s, *length); /* uncompressedLength (2 bytes) */
358 Stream_Read_UINT8(s, *type); /* pduType2, Data PDU Type (1 byte) */
359 Stream_Read_UINT8(s, *compressedType); /* compressedType (1 byte) */
360 Stream_Read_UINT16(s, *compressedLength); /* compressedLength (2 bytes) */
361 return TRUE;
362}
363
364BOOL rdp_write_share_data_header(rdpRdp* rdp, wStream* s, size_t length, BYTE type, UINT32 share_id)
365{
366 const size_t headerLen = RDP_PACKET_HEADER_MAX_LENGTH + RDP_SHARE_CONTROL_HEADER_LENGTH +
367 RDP_SHARE_DATA_HEADER_LENGTH;
368
369 WINPR_ASSERT(s);
370 WINPR_ASSERT(rdp);
371 if (length > UINT16_MAX)
372 return FALSE;
373
374 if (length < headerLen)
375 return FALSE;
376 length -= headerLen;
377 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, (s), 12))
378 return FALSE;
379
380 /* Share Data Header */
381 Stream_Write_UINT32(s, share_id); /* shareId (4 bytes) */
382 Stream_Write_UINT8(s, 0); /* pad1 (1 byte) */
383 Stream_Write_UINT8(s, STREAM_LOW); /* streamId (1 byte) */
384 Stream_Write_UINT16(
385 s, WINPR_ASSERTING_INT_CAST(uint16_t, length)); /* uncompressedLength (2 bytes) */
386 Stream_Write_UINT8(s, type); /* pduType2, Data PDU Type (1 byte) */
387 Stream_Write_UINT8(s, 0); /* compressedType (1 byte) */
388 Stream_Write_UINT16(s, 0); /* compressedLength (2 bytes) */
389 return TRUE;
390}
391
392static BOOL rdp_security_stream_init(rdpRdp* rdp, wStream* s, BOOL sec_header, UINT16* sec_flags)
393{
394 WINPR_ASSERT(rdp);
395 WINPR_ASSERT(s);
396 WINPR_ASSERT(sec_flags);
397
398 if (rdp->do_crypt)
399 {
400 if (!Stream_SafeSeek(s, 12))
401 return FALSE;
402
403 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
404 {
405 if (!Stream_SafeSeek(s, 4))
406 return FALSE;
407 }
408
409 *sec_flags |= SEC_ENCRYPT;
410
411 if (rdp->do_secure_checksum)
412 *sec_flags |= SEC_SECURE_CHECKSUM;
413 }
414 else if (*sec_flags != 0 || sec_header)
415 {
416 if (!Stream_SafeSeek(s, 4))
417 return FALSE;
418 }
419
420 return TRUE;
421}
422
423wStream* rdp_send_stream_init(rdpRdp* rdp, UINT16* sec_flags)
424{
425 wStream* s = nullptr;
426
427 WINPR_ASSERT(rdp);
428 WINPR_ASSERT(rdp->transport);
429
430 s = transport_send_stream_init(rdp->transport, 4096);
431
432 if (!s)
433 return nullptr;
434
435 if (!Stream_SafeSeek(s, RDP_PACKET_HEADER_MAX_LENGTH))
436 goto fail;
437
438 if (!rdp_security_stream_init(rdp, s, FALSE, sec_flags))
439 goto fail;
440
441 return s;
442fail:
443 Stream_Release(s);
444 return nullptr;
445}
446
447wStream* rdp_send_stream_pdu_init(rdpRdp* rdp, UINT16* sec_flags)
448{
449 wStream* s = rdp_send_stream_init(rdp, sec_flags);
450
451 if (!s)
452 return nullptr;
453
454 if (!Stream_SafeSeek(s, RDP_SHARE_CONTROL_HEADER_LENGTH))
455 goto fail;
456
457 return s;
458fail:
459 Stream_Release(s);
460 return nullptr;
461}
462
463wStream* rdp_data_pdu_init(rdpRdp* rdp, UINT16* sec_flags)
464{
465 wStream* s = rdp_send_stream_pdu_init(rdp, sec_flags);
466
467 if (!s)
468 return nullptr;
469
470 if (!Stream_SafeSeek(s, RDP_SHARE_DATA_HEADER_LENGTH))
471 goto fail;
472
473 return s;
474fail:
475 Stream_Release(s);
476 return nullptr;
477}
478
479BOOL rdp_set_error_info(rdpRdp* rdp, UINT32 errorInfo)
480{
481 BOOL rc = TRUE;
482 WINPR_ASSERT(rdp);
483
484 rdp->errorInfo = errorInfo;
485
486 if (rdp->errorInfo != ERRINFO_SUCCESS)
487 {
488 rdpContext* context = rdp->context;
489 WINPR_ASSERT(context);
490
491 rdp_print_errinfo(rdp->errorInfo);
492
493 if (context)
494 {
495 freerdp_set_last_error_log(context, MAKE_FREERDP_ERROR(ERRINFO, errorInfo));
496
497 if (context->pubSub)
498 {
499 ErrorInfoEventArgs e = WINPR_C_ARRAY_INIT;
500 EventArgsInit(&e, "freerdp");
501 e.code = rdp->errorInfo;
502 rc = PubSub_OnErrorInfo(context->pubSub, context, &e) >= 0;
503 }
504 }
505 else
506 WLog_Print(rdp->log, WLOG_ERROR, "missing context=%p", (void*)context);
507 }
508 else
509 {
510 freerdp_set_last_error_log(rdp->context, FREERDP_ERROR_SUCCESS);
511 }
512
513 return rc;
514}
515
516wStream* rdp_message_channel_pdu_init(rdpRdp* rdp, UINT16* sec_flags)
517{
518 wStream* s = nullptr;
519
520 WINPR_ASSERT(rdp);
521
522 s = transport_send_stream_init(rdp->transport, 4096);
523
524 if (!s)
525 return nullptr;
526
527 if (!Stream_SafeSeek(s, RDP_PACKET_HEADER_MAX_LENGTH))
528 goto fail;
529
530 if (!rdp_security_stream_init(rdp, s, TRUE, sec_flags))
531 goto fail;
532
533 return s;
534fail:
535 Stream_Release(s);
536 return nullptr;
537}
538
549BOOL rdp_read_header(rdpRdp* rdp, wStream* s, UINT16* length, UINT16* channelId)
550{
551 BYTE li = 0;
552 BYTE code = 0;
553 BYTE choice = 0;
554 UINT16 initiator = 0;
555
556 WINPR_ASSERT(rdp);
557 WINPR_ASSERT(rdp->settings);
558 WINPR_ASSERT(s);
559 DomainMCSPDU MCSPDU = (rdp->settings->ServerMode) ? DomainMCSPDU_SendDataRequest
560 : DomainMCSPDU_SendDataIndication;
561
562 *channelId = 0; /* Initialize in case of early abort */
563 if (!tpkt_read_header(s, length))
564 return FALSE;
565
566 if (!tpdu_read_header(s, &code, &li, *length))
567 return FALSE;
568
569 if (code != X224_TPDU_DATA)
570 {
571 if (code == X224_TPDU_DISCONNECT_REQUEST)
572 {
573 WLog_Print(rdp->log, WLOG_WARN, "Received X224_TPDU_DISCONNECT_REQUEST, terminating");
574 utils_abort_connect(rdp);
575 return TRUE;
576 }
577
578 WLog_Print(rdp->log, WLOG_WARN,
579 "Unexpected X224 TPDU type %s [%08" PRIx32 "] instead of %s",
580 tpdu_type_to_string(code), code, tpdu_type_to_string(X224_TPDU_DATA));
581 return FALSE;
582 }
583
584 if (!per_read_choice(s, &choice))
585 return FALSE;
586
587 const DomainMCSPDU domainMCSPDU = (DomainMCSPDU)(choice >> 2);
588
589 if (domainMCSPDU != MCSPDU)
590 {
591 if (domainMCSPDU != DomainMCSPDU_DisconnectProviderUltimatum)
592 {
593 WLog_Print(rdp->log, WLOG_WARN, "Received %s instead of %s",
594 mcs_domain_pdu_string(domainMCSPDU), mcs_domain_pdu_string(MCSPDU));
595 return FALSE;
596 }
597 }
598
599 MCSPDU = domainMCSPDU;
600
601 if (*length < 8U)
602 {
603 WLog_Print(rdp->log, WLOG_WARN, "TPDU invalid length, got %" PRIu16 ", expected at least 8",
604 *length);
605 return FALSE;
606 }
607
608 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, *length - 8))
609 return FALSE;
610
611 if (MCSPDU == DomainMCSPDU_DisconnectProviderUltimatum)
612 {
613 int reason = 0;
614 TerminateEventArgs e = WINPR_C_ARRAY_INIT;
615
616 if (!mcs_recv_disconnect_provider_ultimatum(rdp->mcs, s, &reason))
617 return FALSE;
618
619 rdpContext* context = rdp->context;
620 WINPR_ASSERT(context);
621 context->disconnectUltimatum = reason;
622
623 if (rdp->errorInfo == ERRINFO_SUCCESS)
624 {
630 UINT32 errorInfo = ERRINFO_RPC_INITIATED_DISCONNECT;
631 if (reason == Disconnect_Ultimatum_provider_initiated)
632 errorInfo = ERRINFO_RPC_INITIATED_DISCONNECT;
633 else if (reason == Disconnect_Ultimatum_user_requested)
634 errorInfo = ERRINFO_LOGOFF_BY_USER;
635
636 if (!rdp_set_error_info(rdp, errorInfo))
637 return FALSE;
638 }
639
640 WLog_Print(rdp->log, WLOG_DEBUG, "DisconnectProviderUltimatum: reason: %d", reason);
641 utils_abort_connect(rdp);
642 EventArgsInit(&e, "freerdp");
643 e.code = 0;
644 return PubSub_OnTerminate(rdp->pubSub, context, &e) >= 0;
645 }
646
647 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 5))
648 return FALSE;
649
650 if (!per_read_integer16(s, &initiator, MCS_BASE_CHANNEL_ID)) /* initiator (UserId) */
651 return FALSE;
652
653 if (!per_read_integer16(s, channelId, 0)) /* channelId */
654 return FALSE;
655
656 const uint8_t dataPriority = Stream_Get_UINT8(s); /* dataPriority + Segmentation (0x70) */
657 WLog_Print(rdp->log, WLOG_TRACE, "dataPriority=%" PRIu8, dataPriority);
658
659 if (!per_read_length(s, length)) /* userData (OCTET_STRING) */
660 return FALSE;
661
662 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, *length))
663 return FALSE;
664
665 return TRUE;
666}
667
678BOOL rdp_write_header(rdpRdp* rdp, wStream* s, size_t length, UINT16 channelId, UINT16 sec_flags)
679{
680 WINPR_ASSERT(rdp);
681 WINPR_ASSERT(rdp->settings);
682 WINPR_ASSERT(s);
683 WINPR_ASSERT(length >= RDP_PACKET_HEADER_MAX_LENGTH);
684 if (length > UINT16_MAX)
685 return FALSE;
686
687 DomainMCSPDU MCSPDU = (rdp->settings->ServerMode) ? DomainMCSPDU_SendDataIndication
688 : DomainMCSPDU_SendDataRequest;
689
690 if ((sec_flags & SEC_ENCRYPT) && (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS))
691 {
692 const UINT16 body_length = (UINT16)length - RDP_PACKET_HEADER_MAX_LENGTH;
693 const UINT16 pad = 8 - (body_length % 8);
694
695 if (pad != 8)
696 length += pad;
697 }
698
699 if (!mcs_write_domain_mcspdu_header(s, MCSPDU, (UINT16)length, 0))
700 return FALSE;
701 if (!per_write_integer16(s, rdp->mcs->userId, MCS_BASE_CHANNEL_ID)) /* initiator */
702 return FALSE;
703 if (!per_write_integer16(s, channelId, 0)) /* channelId */
704 return FALSE;
705 if (!Stream_EnsureRemainingCapacity(s, 3))
706 return FALSE;
707 Stream_Write_UINT8(s, 0x70); /* dataPriority + segmentation */
708 /*
709 * We always encode length in two bytes, even though we could use
710 * only one byte if length <= 0x7F. It is just easier that way,
711 * because we can leave room for fixed-length header, store all
712 * the data first and then store the header.
713 */
714 length = (length - RDP_PACKET_HEADER_MAX_LENGTH) | 0x8000;
715 Stream_Write_UINT16_BE(
716 s, WINPR_ASSERTING_INT_CAST(uint16_t, length)); /* userData (OCTET_STRING) */
717 return TRUE;
718}
719
720static BOOL rdp_security_stream_out(rdpRdp* rdp, wStream* s, size_t length, UINT16 sec_flags,
721 UINT32* pad)
722{
723 BOOL status = 0;
724 WINPR_ASSERT(rdp);
725 if (length > UINT16_MAX)
726 return FALSE;
727
728 *pad = 0;
729
730 if (sec_flags != 0)
731 {
732 WINPR_ASSERT(sec_flags <= UINT16_MAX);
733 if (!rdp_write_security_header(rdp, s, sec_flags))
734 return FALSE;
735
736 if (sec_flags & SEC_ENCRYPT)
737 {
738 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
739 {
740 BYTE* data = Stream_PointerAs(s, BYTE) + 12;
741 const size_t size = WINPR_ASSERTING_INT_CAST(size_t, (data - Stream_Buffer(s)));
742 if (size > length)
743 return FALSE;
744
745 length -= size;
746
747 Stream_Write_UINT16(s, 0x10); /* length */
748 Stream_Write_UINT8(s, 0x1); /* TSFIPS_VERSION 1*/
749 /* handle padding */
750 *pad = 8 - (length % 8);
751
752 if (*pad == 8)
753 *pad = 0;
754
755 if (*pad)
756 memset(data + length, 0, *pad);
757
758 Stream_Write_UINT8(s, WINPR_ASSERTING_INT_CAST(uint8_t, *pad));
759
760 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, s, 8))
761 return FALSE;
762 if (!security_hmac_signature(data, length, Stream_Pointer(s), 8, rdp))
763 return FALSE;
764
765 Stream_Seek(s, 8);
766 if (!security_fips_encrypt(data, length + *pad, rdp))
767 return FALSE;
768 }
769 else
770 {
771 const BYTE* data = Stream_PointerAs(s, const BYTE) + 8;
772 const size_t diff = Stream_GetPosition(s) + 8ULL;
773 if (diff > length)
774 return FALSE;
775 length -= diff;
776
777 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, s, 8))
778 return FALSE;
779 if (sec_flags & SEC_SECURE_CHECKSUM)
780 status = security_salted_mac_signature(rdp, data, (UINT32)length, TRUE,
781 Stream_Pointer(s), 8);
782 else
783 status = security_mac_signature(rdp, data, (UINT32)length,
784 Stream_PointerAs(s, BYTE), 8);
785
786 if (!status)
787 return FALSE;
788
789 Stream_Seek(s, 8);
790
791 if (!security_encrypt(Stream_Pointer(s), length, rdp))
792 return FALSE;
793 }
794 }
795 }
796
797 return TRUE;
798}
799
800static UINT32 rdp_get_sec_bytes(rdpRdp* rdp, UINT16 sec_flags)
801{
802 UINT32 sec_bytes = 0;
803
804 if (sec_flags & SEC_ENCRYPT)
805 {
806 sec_bytes = 12;
807
808 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
809 sec_bytes += 4;
810 }
811 else if (sec_flags != 0)
812 {
813 sec_bytes = 4;
814 }
815 else
816 {
817 sec_bytes = 0;
818 }
819
820 return sec_bytes;
821}
822
823BOOL rdp_send(rdpRdp* rdp, wStream* s, UINT16 channelId, UINT16 sec_flags)
824{
825 BOOL rc = FALSE;
826 UINT32 pad = 0;
827 BOOL should_unlock = FALSE;
828
829 if (!s)
830 return FALSE;
831
832 if (!rdp)
833 goto fail;
834
835 if (sec_flags & SEC_ENCRYPT)
836 {
837 security_lock(rdp);
838 should_unlock = TRUE;
839 }
840
841 {
842 size_t length = Stream_GetPosition(s);
843 Stream_ResetPosition(s);
844 if (!rdp_write_header(rdp, s, length, channelId, sec_flags))
845 goto fail;
846
847 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
848 goto fail;
849
850 length += pad;
851 if (!Stream_SetPosition(s, length))
852 goto fail;
853 Stream_SealLength(s);
854 }
855
856 if (transport_write(rdp->transport, s) < 0)
857 goto fail;
858
859 rc = TRUE;
860fail:
861 if (should_unlock)
862 security_unlock(rdp);
863 Stream_Release(s);
864 return rc;
865}
866
867BOOL rdp_send_pdu(rdpRdp* rdp, wStream* s, UINT16 type, UINT16 channel_id, UINT16 sec_flags)
868{
869 BOOL rc = FALSE;
870 UINT32 sec_bytes = 0;
871 size_t sec_hold = 0;
872 UINT32 pad = 0;
873 BOOL should_unlock = FALSE;
874
875 if (!s)
876 return FALSE;
877
878 if (!rdp)
879 goto fail;
880
881 if (sec_flags & SEC_ENCRYPT)
882 {
883 security_lock(rdp);
884 should_unlock = TRUE;
885 }
886
887 {
888 size_t length = Stream_GetPosition(s);
889 Stream_ResetPosition(s);
890 if (!rdp_write_header(rdp, s, length, MCS_GLOBAL_CHANNEL_ID, sec_flags))
891 goto fail;
892 sec_bytes = rdp_get_sec_bytes(rdp, sec_flags);
893 sec_hold = Stream_GetPosition(s);
894 Stream_Seek(s, sec_bytes);
895 if (!rdp_write_share_control_header(rdp, s, length - sec_bytes, type, channel_id))
896 goto fail;
897 if (!Stream_SetPosition(s, sec_hold))
898 goto fail;
899
900 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
901 goto fail;
902
903 length += pad;
904 if (!Stream_SetPosition(s, length))
905 goto fail;
906 Stream_SealLength(s);
907 }
908
909 if (transport_write(rdp->transport, s) < 0)
910 goto fail;
911
912 rc = TRUE;
913fail:
914 if (should_unlock)
915 security_unlock(rdp);
916 return rc;
917}
918
919BOOL rdp_send_data_pdu(rdpRdp* rdp, wStream* s, BYTE type, UINT16 channel_id, UINT16 sec_flags)
920{
921 BOOL rc = FALSE;
922 UINT32 sec_bytes = 0;
923 size_t sec_hold = 0;
924 UINT32 pad = 0;
925 BOOL should_unlock = FALSE;
926
927 if (!s)
928 return FALSE;
929
930 if (!rdp)
931 goto fail;
932
933 if (sec_flags & SEC_ENCRYPT)
934 {
935 security_lock(rdp);
936 should_unlock = TRUE;
937 }
938
939 {
940 size_t length = Stream_GetPosition(s);
941 Stream_ResetPosition(s);
942 if (!rdp_write_header(rdp, s, length, MCS_GLOBAL_CHANNEL_ID, sec_flags))
943 goto fail;
944 sec_bytes = rdp_get_sec_bytes(rdp, sec_flags);
945 sec_hold = Stream_GetPosition(s);
946 Stream_Seek(s, sec_bytes);
947 if (!rdp_write_share_control_header(rdp, s, length - sec_bytes, PDU_TYPE_DATA, channel_id))
948 goto fail;
949 if (!rdp_write_share_data_header(rdp, s, length - sec_bytes, type, rdp->settings->ShareId))
950 goto fail;
951 if (!Stream_SetPosition(s, sec_hold))
952 goto fail;
953
954 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
955 goto fail;
956
957 length += pad;
958 if (!Stream_SetPosition(s, length))
959 goto fail;
960 Stream_SealLength(s);
961 }
962 WLog_Print(rdp->log, WLOG_DEBUG,
963 "sending data (type=0x%x size=%" PRIuz " channelId=%" PRIu16 ")", type,
964 Stream_Length(s), channel_id);
965
966 rdp->outPackets++;
967 if (transport_write(rdp->transport, s) < 0)
968 goto fail;
969
970 rc = TRUE;
971fail:
972 if (should_unlock)
973 security_unlock(rdp);
974 Stream_Release(s);
975 return rc;
976}
977
978BOOL rdp_send_message_channel_pdu(rdpRdp* rdp, wStream* s, UINT16 sec_flags)
979{
980 BOOL rc = FALSE;
981 UINT32 pad = 0;
982 BOOL should_unlock = FALSE;
983
984 WINPR_ASSERT(rdp);
985 WINPR_ASSERT(s);
986
987 if (sec_flags & SEC_ENCRYPT)
988 {
989 security_lock(rdp);
990 should_unlock = TRUE;
991 }
992
993 {
994 size_t length = Stream_GetPosition(s);
995 Stream_ResetPosition(s);
996 if (!rdp_write_header(rdp, s, length, rdp->mcs->messageChannelId, sec_flags))
997 goto fail;
998
999 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
1000 goto fail;
1001
1002 length += pad;
1003 if (!Stream_SetPosition(s, length))
1004 goto fail;
1005 }
1006 Stream_SealLength(s);
1007
1008 if (transport_write(rdp->transport, s) < 0)
1009 goto fail;
1010
1011 rc = TRUE;
1012fail:
1013 if (should_unlock)
1014 security_unlock(rdp);
1015
1016 Stream_Release(s);
1017 return rc;
1018}
1019
1020static BOOL rdp_recv_server_shutdown_denied_pdu(WINPR_ATTR_UNUSED rdpRdp* rdp,
1021 WINPR_ATTR_UNUSED wStream* s)
1022{
1023 return TRUE;
1024}
1025
1026static BOOL rdp_recv_server_set_keyboard_indicators_pdu(rdpRdp* rdp, wStream* s)
1027{
1028 WINPR_ASSERT(rdp);
1029 WINPR_ASSERT(s);
1030
1031 rdpContext* context = rdp->context;
1032 WINPR_ASSERT(context);
1033 WINPR_ASSERT(context->update);
1034
1035 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1036 return FALSE;
1037
1038 const uint16_t unitId = Stream_Get_UINT16(s); /* unitId (2 bytes) */
1039 if (unitId != 0)
1040 {
1041 WLog_Print(rdp->log, WLOG_WARN,
1042 "[MS-RDPBCGR] 2.2.8.2.1.1 Set Keyboard Indicators PDU Data "
1043 "(TS_SET_KEYBOARD_INDICATORS_PDU)::unitId should be 0, is %" PRIu16,
1044 unitId);
1045 }
1046 const UINT16 ledFlags = Stream_Get_UINT16(s); /* ledFlags (2 bytes) */
1047 return IFCALLRESULT(TRUE, context->update->SetKeyboardIndicators, context, ledFlags);
1048}
1049
1050static BOOL rdp_recv_server_set_keyboard_ime_status_pdu(rdpRdp* rdp, wStream* s)
1051{
1052 if (!rdp || !rdp->input)
1053 return FALSE;
1054
1055 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 10))
1056 return FALSE;
1057
1058 const uint16_t unitId = Stream_Get_UINT16(s); /* unitId (2 bytes) */
1059 if (unitId != 0)
1060 {
1061 WLog_Print(rdp->log, WLOG_WARN,
1062 "[MS-RDPBCGR] 2.2.8.2.2.1 Set Keyboard IME Status PDU Data "
1063 "(TS_SET_KEYBOARD_IME_STATUS_PDU)::unitId should be 0, is %" PRIu16,
1064 unitId);
1065 }
1066 const uint32_t imeState = Stream_Get_UINT32(s); /* imeState (4 bytes) */
1067 const uint32_t imeConvMode = Stream_Get_UINT32(s); /* imeConvMode (4 bytes) */
1068 return IFCALLRESULT(TRUE, rdp->update->SetKeyboardImeStatus, rdp->context, unitId, imeState,
1069 imeConvMode);
1070}
1071
1072static BOOL rdp_recv_set_error_info_data_pdu(rdpRdp* rdp, wStream* s)
1073{
1074 UINT32 errorInfo = 0;
1075
1076 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1077 return FALSE;
1078
1079 Stream_Read_UINT32(s, errorInfo); /* errorInfo (4 bytes) */
1080 return rdp_set_error_info(rdp, errorInfo);
1081}
1082
1083static BOOL rdp_recv_server_auto_reconnect_status_pdu(rdpRdp* rdp, wStream* s)
1084{
1085 UINT32 arcStatus = 0;
1086
1087 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1088 return FALSE;
1089
1090 Stream_Read_UINT32(s, arcStatus); /* arcStatus (4 bytes) */
1091 WLog_Print(rdp->log, WLOG_WARN, "AutoReconnectStatus: 0x%08" PRIX32 "", arcStatus);
1092 return TRUE;
1093}
1094
1095static BOOL rdp_recv_server_status_info_pdu(rdpRdp* rdp, wStream* s)
1096{
1097 UINT32 statusCode = 0;
1098
1099 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1100 return FALSE;
1101
1102 Stream_Read_UINT32(s, statusCode); /* statusCode (4 bytes) */
1103
1104 if (rdp->update->ServerStatusInfo)
1105 return rdp->update->ServerStatusInfo(rdp->context, statusCode);
1106
1107 return TRUE;
1108}
1109
1110static void log_monitor(size_t idx, const MONITOR_DEF* monitor, wLog* log, DWORD level)
1111{
1112 WINPR_ASSERT(monitor);
1113
1114 WLog_Print(log, level, "[%" PRIuz "] {%dx%d-%dx%d} [0x%08" PRIx32 "]", idx, monitor->left,
1115 monitor->top, monitor->right, monitor->bottom, monitor->flags);
1116}
1117
1118static void log_monitor_configuration(wLog* log, const MONITOR_DEF* monitors, size_t count)
1119{
1120 const DWORD level = WLOG_DEBUG;
1121 WLog_Print(log, level, "[BEGIN] RemoteMonitors[%" PRIuz "]", count);
1122 for (size_t x = 0; x < count; x++)
1123 {
1124 const MONITOR_DEF* monitor = &monitors[x];
1125 log_monitor(x, monitor, log, level);
1126 }
1127 WLog_Print(log, level, "[END] RemoteMonitors[%" PRIuz "]", count);
1128}
1129
1130static BOOL rdp_recv_monitor_layout_pdu(rdpRdp* rdp, wStream* s)
1131{
1132 BOOL ret = TRUE;
1133
1134 WINPR_ASSERT(rdp);
1135 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1136 return FALSE;
1137
1138 const UINT32 monitorCount = Stream_Get_UINT32(s); /* monitorCount (4 bytes) */
1139
1140 if (!Stream_CheckAndLogRequiredLengthOfSizeWLog(rdp->log, s, monitorCount, 20ull))
1141 return FALSE;
1142
1143 MONITOR_DEF* monitorDefArray = (MONITOR_DEF*)calloc(monitorCount, sizeof(MONITOR_DEF));
1144
1145 if (!monitorDefArray)
1146 return FALSE;
1147
1148 for (UINT32 index = 0; index < monitorCount; index++)
1149 {
1150 MONITOR_DEF* monitor = &monitorDefArray[index];
1151 Stream_Read_INT32(s, monitor->left); /* left (4 bytes) */
1152 Stream_Read_INT32(s, monitor->top); /* top (4 bytes) */
1153 Stream_Read_INT32(s, monitor->right); /* right (4 bytes) */
1154 Stream_Read_INT32(s, monitor->bottom); /* bottom (4 bytes) */
1155 Stream_Read_UINT32(s, monitor->flags); /* flags (4 bytes) */
1156 }
1157
1158 log_monitor_configuration(rdp->log, monitorDefArray, monitorCount);
1159 IFCALLRET(rdp->update->RemoteMonitors, ret, rdp->context, monitorCount, monitorDefArray);
1160 free(monitorDefArray);
1161 if (!ret)
1162 return FALSE;
1163 return rdp_set_monitor_layout_pdu_state(rdp, TRUE);
1164}
1165
1166state_run_t rdp_recv_data_pdu(rdpRdp* rdp, wStream* s)
1167{
1168 BYTE type = 0;
1169 wStream* cs = nullptr;
1170 UINT16 length = 0;
1171 UINT32 shareId = 0;
1172 BYTE compressedType = 0;
1173 UINT16 compressedLength = 0;
1174
1175 WINPR_ASSERT(rdp);
1176 if (!rdp_read_share_data_header(rdp, s, &length, &type, &shareId, &compressedType,
1177 &compressedLength))
1178 {
1179 WLog_Print(rdp->log, WLOG_ERROR, "rdp_read_share_data_header() failed");
1180 return STATE_RUN_FAILED;
1181 }
1182
1183 cs = s;
1184
1185 if (compressedType & PACKET_COMPRESSED)
1186 {
1187 if (compressedLength < 18)
1188 {
1189 WLog_Print(rdp->log, WLOG_ERROR,
1190 "bulk_decompress: not enough bytes for compressedLength %" PRIu16 "",
1191 compressedLength);
1192 return STATE_RUN_FAILED;
1193 }
1194
1195 UINT32 DstSize = 0;
1196 const BYTE* pDstData = nullptr;
1197 UINT16 SrcSize = compressedLength - 18;
1198
1199 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, SrcSize))
1200 {
1201 WLog_Print(rdp->log, WLOG_ERROR,
1202 "bulk_decompress: not enough bytes for compressedLength %" PRIu16 "",
1203 compressedLength);
1204 return STATE_RUN_FAILED;
1205 }
1206
1207 if (bulk_decompress(rdp->bulk, Stream_ConstPointer(s), SrcSize, &pDstData, &DstSize,
1208 compressedType))
1209 {
1210 cs = transport_take_from_pool(rdp->transport, DstSize);
1211 if (!cs)
1212 {
1213 WLog_Print(rdp->log, WLOG_ERROR, "Couldn't take stream from pool");
1214 return STATE_RUN_FAILED;
1215 }
1216
1217 Stream_ResetPosition(cs);
1218 Stream_Write(cs, pDstData, DstSize);
1219 Stream_SealLength(cs);
1220 Stream_ResetPosition(cs);
1221 }
1222 else
1223 {
1224 WLog_Print(rdp->log, WLOG_ERROR, "bulk_decompress() failed");
1225 return STATE_RUN_FAILED;
1226 }
1227
1228 Stream_Seek(s, SrcSize);
1229 }
1230
1231 WLog_Print(rdp->log, WLOG_DEBUG, "recv %s Data PDU (0x%02" PRIX8 "), length: %" PRIu16 "",
1232 data_pdu_type_to_string(type), type, length);
1233
1234 switch (type)
1235 {
1236 case DATA_PDU_TYPE_UPDATE:
1237 if (!update_recv(rdp->update, cs))
1238 {
1239 WLog_Print(rdp->log, WLOG_ERROR, "DATA_PDU_TYPE_UPDATE - update_recv() failed");
1240 goto out_fail;
1241 }
1242
1243 break;
1244
1245 case DATA_PDU_TYPE_CONTROL:
1246 if (!rdp_recv_server_control_pdu(rdp, cs))
1247 {
1248 WLog_Print(rdp->log, WLOG_ERROR,
1249 "DATA_PDU_TYPE_CONTROL - rdp_recv_server_control_pdu() failed");
1250 goto out_fail;
1251 }
1252
1253 break;
1254
1255 case DATA_PDU_TYPE_POINTER:
1256 if (!update_recv_pointer(rdp->update, cs))
1257 {
1258 WLog_Print(rdp->log, WLOG_ERROR,
1259 "DATA_PDU_TYPE_POINTER - update_recv_pointer() failed");
1260 goto out_fail;
1261 }
1262
1263 break;
1264
1265 case DATA_PDU_TYPE_SYNCHRONIZE:
1266 if (!rdp_recv_server_synchronize_pdu(rdp, cs))
1267 {
1268 WLog_Print(rdp->log, WLOG_ERROR,
1269 "DATA_PDU_TYPE_SYNCHRONIZE - rdp_recv_synchronize_pdu() failed");
1270 goto out_fail;
1271 }
1272
1273 break;
1274
1275 case DATA_PDU_TYPE_PLAY_SOUND:
1276 if (!update_recv_play_sound(rdp->update, cs))
1277 {
1278 WLog_Print(rdp->log, WLOG_ERROR,
1279 "DATA_PDU_TYPE_PLAY_SOUND - update_recv_play_sound() failed");
1280 goto out_fail;
1281 }
1282
1283 break;
1284
1285 case DATA_PDU_TYPE_SHUTDOWN_DENIED:
1286 if (!rdp_recv_server_shutdown_denied_pdu(rdp, cs))
1287 {
1288 WLog_Print(
1289 rdp->log, WLOG_ERROR,
1290 "DATA_PDU_TYPE_SHUTDOWN_DENIED - rdp_recv_server_shutdown_denied_pdu() failed");
1291 goto out_fail;
1292 }
1293
1294 break;
1295
1296 case DATA_PDU_TYPE_SAVE_SESSION_INFO:
1297 if (!rdp_recv_save_session_info(rdp, cs))
1298 {
1299 WLog_Print(rdp->log, WLOG_ERROR,
1300 "DATA_PDU_TYPE_SAVE_SESSION_INFO - rdp_recv_save_session_info() failed");
1301 goto out_fail;
1302 }
1303
1304 break;
1305
1306 case DATA_PDU_TYPE_FONT_MAP:
1307 if (!rdp_recv_font_map_pdu(rdp, cs))
1308 {
1309 WLog_Print(rdp->log, WLOG_ERROR,
1310 "DATA_PDU_TYPE_FONT_MAP - rdp_recv_font_map_pdu() failed");
1311 goto out_fail;
1312 }
1313
1314 break;
1315
1316 case DATA_PDU_TYPE_SET_KEYBOARD_INDICATORS:
1317 if (!rdp_recv_server_set_keyboard_indicators_pdu(rdp, cs))
1318 {
1319 WLog_Print(rdp->log, WLOG_ERROR,
1320 "DATA_PDU_TYPE_SET_KEYBOARD_INDICATORS - "
1321 "rdp_recv_server_set_keyboard_indicators_pdu() failed");
1322 goto out_fail;
1323 }
1324
1325 break;
1326
1327 case DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS:
1328 if (!rdp_recv_server_set_keyboard_ime_status_pdu(rdp, cs))
1329 {
1330 WLog_Print(rdp->log, WLOG_ERROR,
1331 "DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS - "
1332 "rdp_recv_server_set_keyboard_ime_status_pdu() failed");
1333 goto out_fail;
1334 }
1335
1336 break;
1337
1338 case DATA_PDU_TYPE_SET_ERROR_INFO:
1339 if (!rdp_recv_set_error_info_data_pdu(rdp, cs))
1340 {
1341 WLog_Print(
1342 rdp->log, WLOG_ERROR,
1343 "DATA_PDU_TYPE_SET_ERROR_INFO - rdp_recv_set_error_info_data_pdu() failed");
1344 goto out_fail;
1345 }
1346
1347 break;
1348
1349 case DATA_PDU_TYPE_ARC_STATUS:
1350 if (!rdp_recv_server_auto_reconnect_status_pdu(rdp, cs))
1351 {
1352 WLog_Print(rdp->log, WLOG_ERROR,
1353 "DATA_PDU_TYPE_ARC_STATUS - "
1354 "rdp_recv_server_auto_reconnect_status_pdu() failed");
1355 goto out_fail;
1356 }
1357
1358 break;
1359
1360 case DATA_PDU_TYPE_STATUS_INFO:
1361 if (!rdp_recv_server_status_info_pdu(rdp, cs))
1362 {
1363 WLog_Print(rdp->log, WLOG_ERROR,
1364 "DATA_PDU_TYPE_STATUS_INFO - rdp_recv_server_status_info_pdu() failed");
1365 goto out_fail;
1366 }
1367
1368 break;
1369
1370 case DATA_PDU_TYPE_MONITOR_LAYOUT:
1371 if (!rdp_recv_monitor_layout_pdu(rdp, cs))
1372 {
1373 WLog_Print(rdp->log, WLOG_ERROR,
1374 "DATA_PDU_TYPE_MONITOR_LAYOUT - rdp_recv_monitor_layout_pdu() failed");
1375 goto out_fail;
1376 }
1377
1378 break;
1379
1380 default:
1381 WLog_Print(rdp->log, WLOG_WARN,
1382 "[UNHANDLED] %s Data PDU (0x%02" PRIX8 "), length: %" PRIu16 "",
1383 data_pdu_type_to_string(type), type, length);
1384 break;
1385 }
1386
1387 if (cs != s)
1388 Stream_Release(cs);
1389
1390 return STATE_RUN_SUCCESS;
1391out_fail:
1392
1393 if (cs != s)
1394 Stream_Release(cs);
1395
1396 return STATE_RUN_FAILED;
1397}
1398
1399state_run_t rdp_recv_message_channel_pdu(rdpRdp* rdp, wStream* s, UINT16 securityFlags)
1400{
1401 WINPR_ASSERT(rdp);
1402 WINPR_ASSERT(s);
1403
1404 if (securityFlags & SEC_AUTODETECT_REQ)
1405 {
1406 /* Server Auto-Detect Request PDU */
1407 return autodetect_recv_request_packet(rdp->autodetect, RDP_TRANSPORT_TCP, s);
1408 }
1409
1410 if (securityFlags & SEC_AUTODETECT_RSP)
1411 {
1412 /* Client Auto-Detect Response PDU */
1413 return autodetect_recv_response_packet(rdp->autodetect, RDP_TRANSPORT_TCP, s);
1414 }
1415
1416 if (securityFlags & SEC_HEARTBEAT)
1417 {
1418 /* Heartbeat PDU */
1419 return rdp_recv_heartbeat_packet(rdp, s);
1420 }
1421
1422 if (securityFlags & SEC_TRANSPORT_REQ)
1423 {
1424 return multitransport_recv_request(rdp->multitransport, s);
1425 }
1426
1427 if (securityFlags & SEC_TRANSPORT_RSP)
1428 {
1429 return multitransport_recv_response(rdp->multitransport, s);
1430 }
1431
1432 if (securityFlags & SEC_LICENSE_PKT)
1433 {
1434 return license_recv(rdp->license, s);
1435 }
1436
1437 if (securityFlags & SEC_LICENSE_ENCRYPT_CS)
1438 {
1439 return license_recv(rdp->license, s);
1440 }
1441
1442 if (securityFlags & SEC_LICENSE_ENCRYPT_SC)
1443 {
1444 return license_recv(rdp->license, s);
1445 }
1446
1447 return STATE_RUN_SUCCESS;
1448}
1449
1450state_run_t rdp_recv_out_of_sequence_pdu(rdpRdp* rdp, wStream* s, UINT16 pduType, UINT16 length)
1451{
1452 state_run_t rc = STATE_RUN_FAILED;
1453 WINPR_ASSERT(rdp);
1454
1455 switch (pduType)
1456 {
1457 case PDU_TYPE_DATA:
1458 rc = rdp_recv_data_pdu(rdp, s);
1459 break;
1460 case PDU_TYPE_SERVER_REDIRECTION:
1461 rc = rdp_recv_enhanced_security_redirection_packet(rdp, s);
1462 break;
1463 case PDU_TYPE_FLOW_RESPONSE:
1464 case PDU_TYPE_FLOW_STOP:
1465 case PDU_TYPE_FLOW_TEST:
1466 rc = STATE_RUN_SUCCESS;
1467 break;
1468 default:
1469 {
1470 char buffer1[256] = WINPR_C_ARRAY_INIT;
1471 char buffer2[256] = WINPR_C_ARRAY_INIT;
1472
1473 WLog_Print(rdp->log, WLOG_ERROR, "expected %s, got %s",
1474 pdu_type_to_str(PDU_TYPE_DEMAND_ACTIVE, buffer1, sizeof(buffer1)),
1475 pdu_type_to_str(pduType, buffer2, sizeof(buffer2)));
1476 rc = STATE_RUN_FAILED;
1477 }
1478 break;
1479 }
1480
1481 if (!tpkt_ensure_stream_consumed(rdp->log, s, length))
1482 return STATE_RUN_FAILED;
1483 return rc;
1484}
1485
1486BOOL rdp_read_flow_control_pdu(rdpRdp* rdp, wStream* s, UINT16* type, UINT16* channel_id)
1487{
1488 /*
1489 * Read flow control PDU - documented in FlowPDU section in T.128
1490 * http://www.itu.int/rec/T-REC-T.128-199802-S/en
1491 * The specification for the PDU has pad8bits listed BEFORE pduTypeFlow.
1492 * However, so far pad8bits has always been observed to arrive AFTER pduTypeFlow.
1493 * Switched the order of these two fields to match this observation.
1494 */
1495 UINT8 pduType = 0;
1496
1497 WINPR_ASSERT(rdp);
1498 WINPR_ASSERT(s);
1499 WINPR_ASSERT(type);
1500 WINPR_ASSERT(channel_id);
1501
1502 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 6))
1503 return FALSE;
1504 Stream_Read_UINT8(s, pduType); /* pduTypeFlow */
1505 *type = pduType;
1506 Stream_Seek_UINT8(s); /* pad8bits */
1507 Stream_Seek_UINT8(s); /* flowIdentifier */
1508 Stream_Seek_UINT8(s); /* flowNumber */
1509 Stream_Read_UINT16(s, *channel_id); /* pduSource */
1510 return TRUE;
1511}
1512
1524BOOL rdp_decrypt(rdpRdp* rdp, wStream* s, UINT16* pLength, UINT16 securityFlags)
1525{
1526 BOOL res = FALSE;
1527 BYTE cmac[8] = WINPR_C_ARRAY_INIT;
1528 BYTE wmac[8] = WINPR_C_ARRAY_INIT;
1529 BOOL status = FALSE;
1530
1531 WINPR_ASSERT(rdp);
1532 WINPR_ASSERT(rdp->settings);
1533 WINPR_ASSERT(s);
1534 WINPR_ASSERT(pLength);
1535
1536 security_lock(rdp);
1537
1538 INT32 length = *pLength;
1539 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_NONE)
1540 return TRUE;
1541
1542 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
1543 {
1544 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 12))
1545 goto unlock;
1546
1547 UINT16 len = 0;
1548 Stream_Read_UINT16(s, len); /* 0x10 */
1549 if (len != 0x10)
1550 WLog_Print(rdp->log, WLOG_WARN, "ENCRYPTION_METHOD_FIPS length %" PRIu16 " != 0x10",
1551 len);
1552
1553 UINT16 version = 0;
1554 Stream_Read_UINT8(s, version); /* 0x1 */
1555 if (version != 1)
1556 WLog_Print(rdp->log, WLOG_WARN, "ENCRYPTION_METHOD_FIPS version %" PRIu16 " != 1",
1557 version);
1558
1559 BYTE pad = 0;
1560 Stream_Read_UINT8(s, pad);
1561 const BYTE* sig = Stream_ConstPointer(s);
1562 Stream_Seek(s, 8); /* signature */
1563 length -= 12;
1564 const INT32 padLength = length - pad;
1565
1566 if ((length <= 0) || (padLength <= 0) || (padLength > UINT16_MAX))
1567 {
1568 WLog_Print(rdp->log, WLOG_ERROR, "FATAL: invalid pad length %" PRId32, padLength);
1569 goto unlock;
1570 }
1571
1572 if (!security_fips_decrypt(Stream_Pointer(s), (size_t)length, rdp))
1573 goto unlock;
1574
1575 if (!security_fips_check_signature(Stream_ConstPointer(s), (size_t)padLength, sig, 8, rdp))
1576 goto unlock;
1577
1578 if (!Stream_SetLength(s, Stream_Length(s) - pad))
1579 goto unlock;
1580
1581 *pLength = (UINT16)padLength;
1582 }
1583 else
1584 {
1585 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, sizeof(wmac)))
1586 goto unlock;
1587
1588 Stream_Read(s, wmac, sizeof(wmac));
1589 length -= sizeof(wmac);
1590
1591 if (length <= 0)
1592 {
1593 WLog_Print(rdp->log, WLOG_ERROR, "FATAL: invalid length field");
1594 goto unlock;
1595 }
1596
1597 if (!security_decrypt(Stream_PointerAs(s, BYTE), (size_t)length, rdp))
1598 goto unlock;
1599
1600 if (securityFlags & SEC_SECURE_CHECKSUM)
1601 status = security_salted_mac_signature(rdp, Stream_ConstPointer(s), (UINT32)length,
1602 FALSE, cmac, sizeof(cmac));
1603 else
1604 status = security_mac_signature(rdp, Stream_ConstPointer(s), (UINT32)length, cmac,
1605 sizeof(cmac));
1606
1607 if (!status)
1608 goto unlock;
1609
1610 if (memcmp(wmac, cmac, sizeof(wmac)) != 0)
1611 {
1612 WLog_Print(rdp->log, WLOG_ERROR, "WARNING: invalid packet signature");
1613 /*
1614 * Because Standard RDP Security is totally broken,
1615 * and cannot protect against MITM, don't treat signature
1616 * verification failure as critical. This at least enables
1617 * us to work with broken RDP clients and servers that
1618 * generate invalid signatures.
1619 */
1620 // return FALSE;
1621 }
1622
1623 *pLength = (UINT16)length;
1624 }
1625 res = TRUE;
1626unlock:
1627 security_unlock(rdp);
1628 return res;
1629}
1630
1631const char* pdu_type_to_str(UINT16 pduType, char* buffer, size_t length)
1632{
1633 const char* str = nullptr;
1634 switch (pduType)
1635 {
1636 case PDU_TYPE_DEMAND_ACTIVE:
1637 str = "PDU_TYPE_DEMAND_ACTIVE";
1638 break;
1639 case PDU_TYPE_CONFIRM_ACTIVE:
1640 str = "PDU_TYPE_CONFIRM_ACTIVE";
1641 break;
1642 case PDU_TYPE_DEACTIVATE_ALL:
1643 str = "PDU_TYPE_DEACTIVATE_ALL";
1644 break;
1645 case PDU_TYPE_DATA:
1646 str = "PDU_TYPE_DATA";
1647 break;
1648 case PDU_TYPE_SERVER_REDIRECTION:
1649 str = "PDU_TYPE_SERVER_REDIRECTION";
1650 break;
1651 case PDU_TYPE_FLOW_TEST:
1652 str = "PDU_TYPE_FLOW_TEST";
1653 break;
1654 case PDU_TYPE_FLOW_RESPONSE:
1655 str = "PDU_TYPE_FLOW_RESPONSE";
1656 break;
1657 case PDU_TYPE_FLOW_STOP:
1658 str = "PDU_TYPE_FLOW_STOP";
1659 break;
1660 default:
1661 str = "PDU_TYPE_UNKNOWN";
1662 break;
1663 }
1664
1665 winpr_str_append(str, buffer, length, "");
1666 {
1667 char msg[32] = WINPR_C_ARRAY_INIT;
1668 (void)_snprintf(msg, sizeof(msg), "[0x%08" PRIx32 "]", pduType);
1669 winpr_str_append(msg, buffer, length, "");
1670 }
1671 return buffer;
1672}
1673
1680static state_run_t rdp_recv_tpkt_pdu(rdpRdp* rdp, wStream* s)
1681{
1682 state_run_t rc = STATE_RUN_SUCCESS;
1683 UINT16 length = 0;
1684 UINT16 pduType = 0;
1685 UINT16 pduSource = 0;
1686 UINT16 channelId = 0;
1687 UINT16 securityFlags = 0;
1688
1689 WINPR_ASSERT(rdp);
1690 WINPR_ASSERT(rdp->context);
1691 WINPR_ASSERT(s);
1692
1693 freerdp* instance = rdp->context->instance;
1694 WINPR_ASSERT(instance);
1695
1696 if (!rdp_read_header(rdp, s, &length, &channelId))
1697 return STATE_RUN_FAILED;
1698
1699 if (freerdp_shall_disconnect_context(rdp->context))
1700 return STATE_RUN_SUCCESS;
1701
1702 if (rdp->autodetect->bandwidthMeasureStarted)
1703 {
1704 rdp->autodetect->bandwidthMeasureByteCount += length;
1705 }
1706
1707 if (rdp->mcs->messageChannelId && (channelId == rdp->mcs->messageChannelId))
1708 {
1709 rdp->inPackets++;
1710 return rdp_handle_message_channel(rdp, s, channelId, length);
1711 }
1712
1713 if (rdp->settings->UseRdpSecurityLayer)
1714 {
1715 if (!rdp_read_security_header(rdp, s, &securityFlags, &length))
1716 return STATE_RUN_FAILED;
1717
1718 if (securityFlags & (SEC_ENCRYPT | SEC_REDIRECTION_PKT))
1719 {
1720 if (!rdp_decrypt(rdp, s, &length, securityFlags))
1721 return STATE_RUN_FAILED;
1722 }
1723
1724 if (securityFlags & SEC_REDIRECTION_PKT)
1725 {
1726 /*
1727 * [MS-RDPBCGR] 2.2.13.2.1
1728 * - no share control header, nor the 2 byte pad
1729 */
1730 Stream_Rewind(s, 2);
1731 rdp->inPackets++;
1732
1733 rc = rdp_recv_enhanced_security_redirection_packet(rdp, s);
1734 goto out;
1735 }
1736 }
1737
1738 if (channelId == MCS_GLOBAL_CHANNEL_ID)
1739 {
1740 while (Stream_GetRemainingLength(s) > 3)
1741 {
1742 wStream subbuffer;
1743 wStream* sub = nullptr;
1744 size_t diff = 0;
1745 UINT16 remain = 0;
1746
1747 if (!rdp_read_share_control_header(rdp, s, nullptr, &remain, &pduType, &pduSource))
1748 return STATE_RUN_FAILED;
1749
1750 sub = Stream_StaticInit(&subbuffer, Stream_Pointer(s), remain);
1751 if (!Stream_SafeSeek(s, remain))
1752 return STATE_RUN_FAILED;
1753
1754 rdp->settings->PduSource = pduSource;
1755 rdp->inPackets++;
1756
1757 switch (pduType)
1758 {
1759 case PDU_TYPE_DATA:
1760 rc = rdp_recv_data_pdu(rdp, sub);
1761 if (state_run_failed(rc))
1762 return rc;
1763 break;
1764
1765 case PDU_TYPE_DEACTIVATE_ALL:
1766 if (!rdp_recv_deactivate_all(rdp, sub))
1767 {
1768 WLog_Print(rdp->log, WLOG_ERROR,
1769 "rdp_recv_tpkt_pdu: rdp_recv_deactivate_all() fail");
1770 return STATE_RUN_FAILED;
1771 }
1772
1773 break;
1774
1775 case PDU_TYPE_SERVER_REDIRECTION:
1776 return rdp_recv_enhanced_security_redirection_packet(rdp, sub);
1777
1778 case PDU_TYPE_FLOW_RESPONSE:
1779 case PDU_TYPE_FLOW_STOP:
1780 case PDU_TYPE_FLOW_TEST:
1781 WLog_Print(rdp->log, WLOG_DEBUG, "flow message 0x%04" PRIX16 "", pduType);
1782 /* http://msdn.microsoft.com/en-us/library/cc240576.aspx */
1783 if (!Stream_SafeSeek(sub, remain))
1784 return STATE_RUN_FAILED;
1785 break;
1786
1787 default:
1788 {
1789 char buffer[256] = WINPR_C_ARRAY_INIT;
1790 WLog_Print(rdp->log, WLOG_ERROR, "incorrect PDU type: %s",
1791 pdu_type_to_str(pduType, buffer, sizeof(buffer)));
1792 }
1793 break;
1794 }
1795
1796 diff = Stream_GetRemainingLength(sub);
1797 if (diff > 0)
1798 {
1799 char buffer[256] = WINPR_C_ARRAY_INIT;
1800 WLog_Print(rdp->log, WLOG_WARN,
1801 "pduType %s not properly parsed, %" PRIuz
1802 " bytes remaining unhandled. Skipping.",
1803 pdu_type_to_str(pduType, buffer, sizeof(buffer)), diff);
1804 }
1805 }
1806 }
1807 else
1808 {
1809 rdp->inPackets++;
1810
1811 if (!freerdp_channel_process(instance, s, channelId, length))
1812 return STATE_RUN_FAILED;
1813 }
1814
1815out:
1816 if (!tpkt_ensure_stream_consumed(rdp->log, s, length))
1817 return STATE_RUN_FAILED;
1818 return rc;
1819}
1820
1821static state_run_t rdp_recv_fastpath_pdu(rdpRdp* rdp, wStream* s)
1822{
1823 UINT16 length = 0;
1824
1825 WINPR_ASSERT(rdp);
1826 rdpFastPath* fastpath = rdp->fastpath;
1827
1828 if (!fastpath_read_header_rdp(fastpath, s, &length))
1829 {
1830 WLog_Print(rdp->log, WLOG_ERROR, "rdp_recv_fastpath_pdu: fastpath_read_header_rdp() fail");
1831 return STATE_RUN_FAILED;
1832 }
1833
1834 if ((length == 0) || (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, length)))
1835 {
1836 WLog_Print(rdp->log, WLOG_ERROR, "incorrect FastPath PDU header length %" PRIu16 "",
1837 length);
1838 return STATE_RUN_FAILED;
1839 }
1840
1841 if (rdp->autodetect->bandwidthMeasureStarted)
1842 {
1843 rdp->autodetect->bandwidthMeasureByteCount += length;
1844 }
1845
1846 if (!fastpath_decrypt(fastpath, s, &length))
1847 return STATE_RUN_FAILED;
1848
1849 return fastpath_recv_updates(rdp->fastpath, s);
1850}
1851
1852static state_run_t rdp_recv_pdu(rdpRdp* rdp, wStream* s)
1853{
1854 const int rc = tpkt_verify_header(s);
1855 if (rc > 0)
1856 return rdp_recv_tpkt_pdu(rdp, s);
1857 else if (rc == 0)
1858 return rdp_recv_fastpath_pdu(rdp, s);
1859 else
1860 return STATE_RUN_FAILED;
1861}
1862
1863static state_run_t rdp_handle_sc_flags(rdpRdp* rdp, wStream* s, UINT32 flag,
1864 CONNECTION_STATE nextState)
1865{
1866 const UINT32 mask = FINALIZE_SC_SYNCHRONIZE_PDU | FINALIZE_SC_CONTROL_COOPERATE_PDU |
1867 FINALIZE_SC_CONTROL_GRANTED_PDU | FINALIZE_SC_FONT_MAP_PDU;
1868 WINPR_ASSERT(rdp);
1869 state_run_t status = rdp_recv_pdu(rdp, s);
1870 if (state_run_success(status))
1871 {
1872 const UINT32 flags = rdp->finalize_sc_pdus & mask;
1873 if ((flags & flag) == flag)
1874 {
1875 if (!rdp_client_transition_to_state(rdp, nextState))
1876 status = STATE_RUN_FAILED;
1877 else
1878 status = STATE_RUN_SUCCESS;
1879 }
1880 else
1881 {
1882 char flag_buffer[256] = WINPR_C_ARRAY_INIT;
1883 char mask_buffer[256] = WINPR_C_ARRAY_INIT;
1884 WLog_Print(rdp->log, WLOG_WARN,
1885 "[%s] unexpected server message, expected flag %s [have %s]",
1886 rdp_get_state_string(rdp),
1887 rdp_finalize_flags_to_str(flag, flag_buffer, sizeof(flag_buffer)),
1888 rdp_finalize_flags_to_str(flags, mask_buffer, sizeof(mask_buffer)));
1889 }
1890 }
1891 return status;
1892}
1893
1894static state_run_t rdp_client_exchange_monitor_layout(rdpRdp* rdp, wStream* s)
1895{
1896 WINPR_ASSERT(rdp);
1897
1898 if (!rdp_check_monitor_layout_pdu_state(rdp, FALSE))
1899 return STATE_RUN_FAILED;
1900
1901 /* We might receive unrelated messages from the server (channel traffic),
1902 * so only proceed if some flag changed
1903 */
1904 const UINT32 old = rdp->finalize_sc_pdus;
1905 state_run_t status = rdp_recv_pdu(rdp, s);
1906 const UINT32 now = rdp->finalize_sc_pdus;
1907 const BOOL changed = (old != now) || rdp->monitor_layout_pdu;
1908
1909 /* This PDU is optional, so if we received a finalize PDU continue there */
1910 if (state_run_success(status) && changed)
1911 {
1912 if (!rdp->monitor_layout_pdu)
1913 {
1914 if (!rdp_finalize_is_flag_set(rdp, FINALIZE_SC_SYNCHRONIZE_PDU))
1915 return STATE_RUN_FAILED;
1916 }
1917
1918 status = rdp_client_connect_finalize(rdp);
1919 if (state_run_success(status) && !rdp->monitor_layout_pdu)
1920 status = STATE_RUN_TRY_AGAIN;
1921 }
1922 return status;
1923}
1924
1925static state_run_t rdp_recv_callback_int(WINPR_ATTR_UNUSED rdpTransport* transport, wStream* s,
1926 void* extra)
1927{
1928 state_run_t status = STATE_RUN_SUCCESS;
1929 rdpRdp* rdp = (rdpRdp*)extra;
1930
1931 WINPR_ASSERT(transport);
1932 WINPR_ASSERT(rdp);
1933 WINPR_ASSERT(s);
1934
1935 switch (rdp_get_state(rdp))
1936 {
1937 case CONNECTION_STATE_NEGO:
1938 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_REQUEST))
1939 status = STATE_RUN_FAILED;
1940 else
1941 status = STATE_RUN_CONTINUE;
1942 break;
1943 case CONNECTION_STATE_NLA:
1944 if (nla_get_state(rdp->nla) < NLA_STATE_AUTH_INFO)
1945 {
1946 if (nla_recv_pdu(rdp->nla, s) < 1)
1947 {
1948 WLog_Print(rdp->log, WLOG_ERROR, "%s - nla_recv_pdu() fail",
1949 rdp_get_state_string(rdp));
1950 status = STATE_RUN_FAILED;
1951 }
1952 }
1953 else if (nla_get_state(rdp->nla) == NLA_STATE_POST_NEGO)
1954 {
1955 if (nego_recv(rdp->transport, s, (void*)rdp->nego) < 0)
1956 return STATE_RUN_FAILED;
1957
1958 if (!nego_update_settings_from_state(rdp->nego, rdp->settings))
1959 return STATE_RUN_FAILED;
1960
1961 if (nego_get_state(rdp->nego) != NEGO_STATE_FINAL)
1962 {
1963 WLog_Print(rdp->log, WLOG_ERROR, "%s - nego_recv() fail",
1964 rdp_get_state_string(rdp));
1965 status = STATE_RUN_FAILED;
1966 }
1967 else if (!nla_set_state(rdp->nla, NLA_STATE_FINAL))
1968 status = STATE_RUN_FAILED;
1969 }
1970
1971 if (state_run_success(status))
1972 {
1973 if (nla_get_state(rdp->nla) == NLA_STATE_AUTH_INFO)
1974 {
1975 transport_set_nla_mode(rdp->transport, FALSE);
1976
1977 if (rdp->settings->VmConnectMode)
1978 {
1979 if (!nego_set_state(rdp->nego, NEGO_STATE_NLA))
1980 status = STATE_RUN_FAILED;
1981 else if (!nego_set_requested_protocols(rdp->nego,
1982 PROTOCOL_HYBRID | PROTOCOL_SSL))
1983 status = STATE_RUN_FAILED;
1984 else if (!nego_send_negotiation_request(rdp->nego))
1985 status = STATE_RUN_FAILED;
1986 else if (!nla_set_state(rdp->nla, NLA_STATE_POST_NEGO))
1987 status = STATE_RUN_FAILED;
1988 }
1989 else
1990 {
1991 if (!nla_set_state(rdp->nla, NLA_STATE_FINAL))
1992 status = STATE_RUN_FAILED;
1993 }
1994 }
1995 }
1996 if (state_run_success(status))
1997 {
1998
1999 if (nla_get_state(rdp->nla) == NLA_STATE_FINAL)
2000 {
2001 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_REQUEST))
2002 status = STATE_RUN_FAILED;
2003 else
2004 status = STATE_RUN_CONTINUE;
2005 }
2006 }
2007 break;
2008
2009 case CONNECTION_STATE_AAD:
2010 if (aad_recv(rdp->aad, s) < 1)
2011 {
2012 WLog_Print(rdp->log, WLOG_ERROR, "%s - aad_recv() fail", rdp_get_state_string(rdp));
2013 status = STATE_RUN_FAILED;
2014 }
2015 if (state_run_success(status))
2016 {
2017 if (aad_get_state(rdp->aad) == AAD_STATE_FINAL)
2018 {
2019 transport_set_aad_mode(rdp->transport, FALSE);
2020 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_REQUEST))
2021 status = STATE_RUN_FAILED;
2022 else
2023 status = STATE_RUN_CONTINUE;
2024 }
2025 }
2026 break;
2027
2028 case CONNECTION_STATE_MCS_CREATE_REQUEST:
2029 if (!mcs_client_begin(rdp->mcs))
2030 {
2031 WLog_Print(rdp->log, WLOG_ERROR, "%s - mcs_client_begin() fail",
2032 rdp_get_state_string(rdp));
2033 status = STATE_RUN_FAILED;
2034 }
2035 else if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_RESPONSE))
2036 status = STATE_RUN_FAILED;
2037 else if (Stream_GetRemainingLength(s) > 0)
2038 status = STATE_RUN_CONTINUE;
2039 break;
2040
2041 case CONNECTION_STATE_MCS_CREATE_RESPONSE:
2042 if (!mcs_recv_connect_response(rdp->mcs, s))
2043 {
2044 WLog_Print(rdp->log, WLOG_ERROR, "mcs_recv_connect_response failure");
2045 status = STATE_RUN_FAILED;
2046 }
2047 else
2048 {
2049 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_ERECT_DOMAIN))
2050 status = STATE_RUN_FAILED;
2051 else if (!mcs_send_erect_domain_request(rdp->mcs))
2052 {
2053 WLog_Print(rdp->log, WLOG_ERROR, "mcs_send_erect_domain_request failure");
2054 status = STATE_RUN_FAILED;
2055 }
2056 else if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_ATTACH_USER))
2057 status = STATE_RUN_FAILED;
2058 else if (!mcs_send_attach_user_request(rdp->mcs))
2059 {
2060 WLog_Print(rdp->log, WLOG_ERROR, "mcs_send_attach_user_request failure");
2061 status = STATE_RUN_FAILED;
2062 }
2063 else if (!rdp_client_transition_to_state(rdp,
2064 CONNECTION_STATE_MCS_ATTACH_USER_CONFIRM))
2065 status = STATE_RUN_FAILED;
2066 }
2067 break;
2068
2069 case CONNECTION_STATE_MCS_ATTACH_USER_CONFIRM:
2070 if (!mcs_recv_attach_user_confirm(rdp->mcs, s))
2071 {
2072 WLog_Print(rdp->log, WLOG_ERROR, "mcs_recv_attach_user_confirm failure");
2073 status = STATE_RUN_FAILED;
2074 }
2075 else if (!freerdp_settings_get_bool(rdp->settings, FreeRDP_SupportSkipChannelJoin))
2076 {
2077 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CHANNEL_JOIN_REQUEST))
2078 status = STATE_RUN_FAILED;
2079 else if (!mcs_send_channel_join_request(rdp->mcs, rdp->mcs->userId))
2080 {
2081 WLog_Print(rdp->log, WLOG_ERROR, "mcs_send_channel_join_request failure");
2082 status = STATE_RUN_FAILED;
2083 }
2084 else if (!rdp_client_transition_to_state(
2085 rdp, CONNECTION_STATE_MCS_CHANNEL_JOIN_RESPONSE))
2086 status = STATE_RUN_FAILED;
2087 }
2088 else
2089 {
2090 /* SKIP_CHANNELJOIN is active, consider channels to be joined */
2091 if (!rdp_client_skip_mcs_channel_join(rdp))
2092 status = STATE_RUN_FAILED;
2093 }
2094 break;
2095
2096 case CONNECTION_STATE_MCS_CHANNEL_JOIN_RESPONSE:
2097 if (!rdp_client_connect_mcs_channel_join_confirm(rdp, s))
2098 {
2099 WLog_Print(rdp->log, WLOG_ERROR,
2100 "%s - "
2101 "rdp_client_connect_mcs_channel_join_confirm() fail",
2102 rdp_get_state_string(rdp));
2103 status = STATE_RUN_FAILED;
2104 }
2105
2106 break;
2107
2108 case CONNECTION_STATE_CONNECT_TIME_AUTO_DETECT_REQUEST:
2109 if (!rdp_client_connect_auto_detect(rdp, s, WLOG_DEBUG))
2110 {
2111 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_LICENSING))
2112 status = STATE_RUN_FAILED;
2113 else
2114 status = STATE_RUN_TRY_AGAIN;
2115 }
2116 break;
2117
2118 case CONNECTION_STATE_LICENSING:
2119 status = rdp_client_connect_license(rdp, s);
2120
2121 if (state_run_failed(status))
2122 {
2123 char buffer[64] = WINPR_C_ARRAY_INIT;
2124 WLog_Print(rdp->log, WLOG_DEBUG, "%s - rdp_client_connect_license() - %s",
2125 rdp_get_state_string(rdp),
2126 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2127 }
2128
2129 break;
2130
2131 case CONNECTION_STATE_MULTITRANSPORT_BOOTSTRAPPING_REQUEST:
2132 if (!rdp_client_connect_auto_detect(rdp, s, WLOG_DEBUG))
2133 {
2134 if (!rdp_client_transition_to_state(
2135 rdp, CONNECTION_STATE_CAPABILITIES_EXCHANGE_DEMAND_ACTIVE))
2136 status = STATE_RUN_FAILED;
2137 else
2138 status = STATE_RUN_TRY_AGAIN;
2139 }
2140 break;
2141
2142 case CONNECTION_STATE_CAPABILITIES_EXCHANGE_DEMAND_ACTIVE:
2143 status = rdp_client_connect_demand_active(rdp, s);
2144
2145 if (state_run_failed(status))
2146 {
2147 char buffer[64] = WINPR_C_ARRAY_INIT;
2148 WLog_Print(rdp->log, WLOG_DEBUG,
2149 "%s - "
2150 "rdp_client_connect_demand_active() - %s",
2151 rdp_get_state_string(rdp),
2152 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2153 }
2154 else if (status == STATE_RUN_ACTIVE)
2155 {
2156 if (!rdp_client_transition_to_state(
2157 rdp, CONNECTION_STATE_CAPABILITIES_EXCHANGE_CONFIRM_ACTIVE))
2158 status = STATE_RUN_FAILED;
2159 else
2160 status = STATE_RUN_CONTINUE;
2161 }
2162 break;
2163
2164 case CONNECTION_STATE_CAPABILITIES_EXCHANGE_MONITOR_LAYOUT:
2165 status = rdp_client_exchange_monitor_layout(rdp, s);
2166 break;
2167
2168 case CONNECTION_STATE_CAPABILITIES_EXCHANGE_CONFIRM_ACTIVE:
2169 status = rdp_client_connect_confirm_active(rdp, s);
2170 break;
2171
2172 case CONNECTION_STATE_FINALIZATION_CLIENT_SYNC:
2173 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_SYNCHRONIZE_PDU,
2174 CONNECTION_STATE_FINALIZATION_CLIENT_COOPERATE);
2175 break;
2176 case CONNECTION_STATE_FINALIZATION_CLIENT_COOPERATE:
2177 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_CONTROL_COOPERATE_PDU,
2178 CONNECTION_STATE_FINALIZATION_CLIENT_GRANTED_CONTROL);
2179 break;
2180 case CONNECTION_STATE_FINALIZATION_CLIENT_GRANTED_CONTROL:
2181 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_CONTROL_GRANTED_PDU,
2182 CONNECTION_STATE_FINALIZATION_CLIENT_FONT_MAP);
2183 break;
2184 case CONNECTION_STATE_FINALIZATION_CLIENT_FONT_MAP:
2185 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_FONT_MAP_PDU, CONNECTION_STATE_ACTIVE);
2186 break;
2187
2188 case CONNECTION_STATE_ACTIVE:
2189 status = rdp_recv_pdu(rdp, s);
2190
2191 if (state_run_failed(status))
2192 {
2193 char buffer[64] = WINPR_C_ARRAY_INIT;
2194 WLog_Print(rdp->log, WLOG_DEBUG, "%s - rdp_recv_pdu() - %s",
2195 rdp_get_state_string(rdp),
2196 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2197 }
2198 break;
2199
2200 default:
2201 WLog_Print(rdp->log, WLOG_ERROR, "%s state %u", rdp_get_state_string(rdp),
2202 rdp_get_state(rdp));
2203 status = STATE_RUN_FAILED;
2204 break;
2205 }
2206
2207 if (state_run_failed(status))
2208 {
2209 char buffer[64] = WINPR_C_ARRAY_INIT;
2210 WLog_Print(rdp->log, WLOG_ERROR, "%s status %s", rdp_get_state_string(rdp),
2211 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2212 }
2213 return status;
2214}
2215
2216state_run_t rdp_recv_callback(rdpTransport* transport, wStream* s, void* extra)
2217{
2218 char buffer[64] = WINPR_C_ARRAY_INIT;
2219 state_run_t rc = STATE_RUN_FAILED;
2220 const size_t start = Stream_GetPosition(s);
2221 const rdpContext* context = transport_get_context(transport);
2222
2223 WINPR_ASSERT(context);
2224 do
2225 {
2226 const rdpRdp* rdp = context->rdp;
2227 WINPR_ASSERT(rdp);
2228
2229 if (rc == STATE_RUN_TRY_AGAIN)
2230 {
2231 if (!Stream_SetPosition(s, start))
2232 return STATE_RUN_FAILED;
2233 }
2234
2235 const char* old = rdp_get_state_string(rdp);
2236 const size_t orem = Stream_GetRemainingLength(s);
2237 rc = rdp_recv_callback_int(transport, s, extra);
2238
2239 const char* now = rdp_get_state_string(rdp);
2240 const size_t rem = Stream_GetRemainingLength(s);
2241
2242 WLog_Print(rdp->log, WLOG_TRACE,
2243 "(client)[%s -> %s] current return %s [feeding %" PRIuz " bytes, %" PRIuz
2244 " bytes not processed]",
2245 old, now, state_run_result_string(rc, buffer, sizeof(buffer)), orem, rem);
2246 } while ((rc == STATE_RUN_TRY_AGAIN) || (rc == STATE_RUN_CONTINUE));
2247 return rc;
2248}
2249
2250BOOL rdp_send_channel_data(rdpRdp* rdp, UINT16 channelId, const BYTE* data, size_t size)
2251{
2252 return freerdp_channel_send(rdp, channelId, data, size);
2253}
2254
2255BOOL rdp_channel_send_packet(rdpRdp* rdp, UINT16 channelId, size_t totalSize, UINT32 flags,
2256 const BYTE* data, size_t chunkSize)
2257{
2258 return freerdp_channel_send_packet(rdp, channelId, totalSize, flags, data, chunkSize);
2259}
2260
2261BOOL rdp_send_error_info(rdpRdp* rdp)
2262{
2263 UINT16 sec_flags = 0;
2264 wStream* s = nullptr;
2265 BOOL status = 0;
2266
2267 if (rdp->errorInfo == ERRINFO_SUCCESS)
2268 return TRUE;
2269
2270 s = rdp_data_pdu_init(rdp, &sec_flags);
2271
2272 if (!s)
2273 return FALSE;
2274
2275 Stream_Write_UINT32(s, rdp->errorInfo); /* error id (4 bytes) */
2276 status = rdp_send_data_pdu(rdp, s, DATA_PDU_TYPE_SET_ERROR_INFO, 0, sec_flags);
2277 return status;
2278}
2279
2280int rdp_check_fds(rdpRdp* rdp)
2281{
2282 int status = 0;
2283 rdpTsg* tsg = nullptr;
2284 rdpTransport* transport = nullptr;
2285
2286 WINPR_ASSERT(rdp);
2287 transport = rdp->transport;
2288
2289 tsg = transport_get_tsg(transport);
2290 if (tsg)
2291 {
2292 if (!tsg_check_event_handles(tsg))
2293 {
2294 WLog_Print(rdp->log, WLOG_ERROR, "rdp_check_fds: tsg_check_event_handles()");
2295 return -1;
2296 }
2297
2298 if (tsg_get_state(tsg) != TSG_STATE_PIPE_CREATED)
2299 return 1;
2300 }
2301
2302 status = transport_check_fds(transport);
2303
2304 if (status == 1)
2305 {
2306 if (!rdp_client_redirect(rdp)) /* session redirection */
2307 return -1;
2308 }
2309
2310 if (status < 0)
2311 WLog_Print(rdp->log, WLOG_DEBUG, "transport_check_fds() - %i", status);
2312 else
2313 status = freerdp_timer_poll(rdp->timer);
2314
2315 return status;
2316}
2317
2318BOOL freerdp_get_stats(const rdpRdp* rdp, UINT64* inBytes, UINT64* outBytes, UINT64* inPackets,
2319 UINT64* outPackets)
2320{
2321 if (!rdp)
2322 return FALSE;
2323
2324 if (inBytes)
2325 *inBytes = rdp->inBytes;
2326 if (outBytes)
2327 *outBytes = rdp->outBytes;
2328 if (inPackets)
2329 *inPackets = rdp->inPackets;
2330 if (outPackets)
2331 *outPackets = rdp->outPackets;
2332
2333 return TRUE;
2334}
2335
2336static bool rdp_new_common(rdpRdp* rdp)
2337{
2338 WINPR_ASSERT(rdp);
2339
2340 bool rc = false;
2341 rdp->transport = transport_new(rdp->context);
2342 if (!rdp->transport)
2343 goto fail;
2344
2345 if (rdp->io)
2346 {
2347 if (!transport_set_io_callbacks(rdp->transport, rdp->io))
2348 goto fail;
2349 }
2350
2351 rdp->aad = aad_new(rdp->context);
2352 if (!rdp->aad)
2353 goto fail;
2354
2355 rdp->nego = nego_new(rdp->transport);
2356 if (!rdp->nego)
2357 goto fail;
2358
2359 rdp->mcs = mcs_new(rdp->context);
2360 if (!rdp->mcs)
2361 goto fail;
2362
2363 rdp->license = license_new(rdp);
2364 if (!rdp->license)
2365 goto fail;
2366
2367 rdp->fastpath = fastpath_new(rdp);
2368 if (!rdp->fastpath)
2369 goto fail;
2370
2371 rc = true;
2372fail:
2373 return rc;
2374}
2375
2381rdpRdp* rdp_new(rdpContext* context)
2382{
2383 DWORD flags = 0;
2384 rdpRdp* rdp = (rdpRdp*)calloc(1, sizeof(rdpRdp));
2385
2386 if (!rdp)
2387 return nullptr;
2388
2389 rdp->log = WLog_Get(RDP_TAG);
2390 WINPR_ASSERT(rdp->log);
2391
2392 (void)_snprintf(rdp->log_context, sizeof(rdp->log_context), "%p", (void*)context);
2393 WLog_SetContext(rdp->log, nullptr, rdp->log_context);
2394
2395 InitializeCriticalSection(&rdp->critical);
2396 rdp->context = context;
2397 WINPR_ASSERT(rdp->context);
2398
2399 if (context->ServerMode)
2400 flags |= FREERDP_SETTINGS_SERVER_MODE;
2401
2402 if (!context->settings)
2403 {
2404 context->settings = rdp->settings = freerdp_settings_new(flags);
2405
2406 if (!rdp->settings)
2407 goto fail;
2408 }
2409 else
2410 rdp->settings = context->settings;
2411
2412 /* Keep a backup copy of settings for later comparisons */
2413 if (!rdp_set_backup_settings(rdp))
2414 goto fail;
2415
2416 rdp->settings->instance = context->instance;
2417
2418 context->settings = rdp->settings;
2419 if (context->instance)
2420 context->settings->instance = context->instance;
2421 else if (context->peer)
2422 {
2423 rdp->settings->instance = context->peer;
2424
2425#if defined(WITH_FREERDP_DEPRECATED)
2426 context->peer->settings = rdp->settings;
2427#endif
2428 }
2429
2430 if (!rdp_new_common(rdp))
2431 goto fail;
2432
2433 {
2434 const rdpTransportIo* io = transport_get_io_callbacks(rdp->transport);
2435 if (!io)
2436 goto fail;
2437 rdp->io = calloc(1, sizeof(rdpTransportIo));
2438 if (!rdp->io)
2439 goto fail;
2440 *rdp->io = *io;
2441 }
2442
2443 rdp->input = input_new(rdp);
2444
2445 if (!rdp->input)
2446 goto fail;
2447
2448 rdp->update = update_new(rdp);
2449
2450 if (!rdp->update)
2451 goto fail;
2452
2453 rdp->redirection = redirection_new();
2454
2455 if (!rdp->redirection)
2456 goto fail;
2457
2458 rdp->autodetect = autodetect_new(rdp->context);
2459
2460 if (!rdp->autodetect)
2461 goto fail;
2462
2463 rdp->heartbeat = heartbeat_new();
2464
2465 if (!rdp->heartbeat)
2466 goto fail;
2467
2468 rdp->multitransport = multitransport_new(rdp, INITIATE_REQUEST_PROTOCOL_UDPFECL |
2469 INITIATE_REQUEST_PROTOCOL_UDPFECR);
2470
2471 if (!rdp->multitransport)
2472 goto fail;
2473
2474 rdp->bulk = bulk_new(context);
2475
2476 if (!rdp->bulk)
2477 goto fail;
2478
2479 rdp->pubSub = PubSub_New(TRUE);
2480 if (!rdp->pubSub)
2481 goto fail;
2482
2483 rdp->abortEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
2484 if (!rdp->abortEvent)
2485 goto fail;
2486
2487 rdp->timer = freerdp_timer_new(rdp);
2488 if (!rdp->timer)
2489 goto fail;
2490
2491 return rdp;
2492
2493fail:
2494 WINPR_PRAGMA_DIAG_PUSH
2495 WINPR_PRAGMA_DIAG_IGNORED_MISMATCHED_DEALLOC
2496 rdp_free(rdp);
2497 WINPR_PRAGMA_DIAG_POP
2498 return nullptr;
2499}
2500
2501static void rdp_reset_free(rdpRdp* rdp)
2502{
2503 WINPR_ASSERT(rdp);
2504
2505 security_lock(rdp);
2506 rdp_free_rc4_decrypt_keys(rdp);
2507 rdp_free_rc4_encrypt_keys(rdp);
2508
2509 winpr_Cipher_Free(rdp->fips_encrypt);
2510 winpr_Cipher_Free(rdp->fips_decrypt);
2511 rdp->fips_encrypt = nullptr;
2512 rdp->fips_decrypt = nullptr;
2513 security_unlock(rdp);
2514
2515 aad_free(rdp->aad);
2516 mcs_free(rdp->mcs);
2517 nego_free(rdp->nego);
2518 license_free(rdp->license);
2519 transport_free(rdp->transport);
2520 fastpath_free(rdp->fastpath);
2521
2522 rdp->aad = nullptr;
2523 rdp->mcs = nullptr;
2524 rdp->nego = nullptr;
2525 rdp->license = nullptr;
2526 rdp->transport = nullptr;
2527 rdp->fastpath = nullptr;
2528}
2529
2530BOOL rdp_reset(rdpRdp* rdp)
2531{
2532 BOOL rc = TRUE;
2533
2534 WINPR_ASSERT(rdp);
2535
2536 rdpSettings* settings = rdp->settings;
2537 WINPR_ASSERT(settings);
2538
2539 bulk_reset(rdp->bulk);
2540
2541 rdp_reset_free(rdp);
2542
2543 if (!freerdp_settings_set_pointer_len(settings, FreeRDP_ServerRandom, nullptr, 0))
2544 rc = FALSE;
2545
2546 if (!freerdp_settings_set_pointer_len(settings, FreeRDP_ServerCertificate, nullptr, 0))
2547 rc = FALSE;
2548
2549 if (!freerdp_settings_set_string(settings, FreeRDP_ClientAddress, nullptr))
2550 rc = FALSE;
2551
2552 if (!rc)
2553 goto fail;
2554
2555 rc = rdp_new_common(rdp);
2556 if (!rc)
2557 goto fail;
2558
2559 if (!transport_set_layer(rdp->transport, TRANSPORT_LAYER_TCP))
2560 goto fail;
2561
2562 rdp->errorInfo = 0;
2563 rc = rdp_finalize_reset_flags(rdp, TRUE);
2564
2565fail:
2566 return rc;
2567}
2568
2574void rdp_free(rdpRdp* rdp)
2575{
2576 if (rdp)
2577 {
2578 freerdp_timer_free(rdp->timer);
2579 rdp_reset_free(rdp);
2580
2581 freerdp_settings_free(rdp->settings);
2582 freerdp_settings_free(rdp->originalSettings);
2583 freerdp_settings_free(rdp->remoteSettings);
2584
2585 input_free(rdp->input);
2586 update_free(rdp->update);
2587 nla_free(rdp->nla);
2588 redirection_free(rdp->redirection);
2589 autodetect_free(rdp->autodetect);
2590 heartbeat_free(rdp->heartbeat);
2591 multitransport_free(rdp->multitransport);
2592 bulk_free(rdp->bulk);
2593 free(rdp->io);
2594 PubSub_Free(rdp->pubSub);
2595 if (rdp->abortEvent)
2596 (void)CloseHandle(rdp->abortEvent);
2597 aad_free(rdp->aad);
2598 WINPR_JSON_Delete(rdp->wellknown);
2599 DeleteCriticalSection(&rdp->critical);
2600 free(rdp);
2601 }
2602}
2603
2604BOOL rdp_io_callback_set_event(rdpRdp* rdp, BOOL set)
2605{
2606 if (!rdp)
2607 return FALSE;
2608 return transport_io_callback_set_event(rdp->transport, set);
2609}
2610
2611const rdpTransportIo* rdp_get_io_callbacks(rdpRdp* rdp)
2612{
2613 if (!rdp)
2614 return nullptr;
2615 return rdp->io;
2616}
2617
2618BOOL rdp_set_io_callbacks(rdpRdp* rdp, const rdpTransportIo* io_callbacks)
2619{
2620 if (!rdp)
2621 return FALSE;
2622 free(rdp->io);
2623 rdp->io = nullptr;
2624 if (io_callbacks)
2625 {
2626 rdp->io = malloc(sizeof(rdpTransportIo));
2627 if (!rdp->io)
2628 return FALSE;
2629 *rdp->io = *io_callbacks;
2630 return transport_set_io_callbacks(rdp->transport, rdp->io);
2631 }
2632 return TRUE;
2633}
2634
2635BOOL rdp_set_io_callback_context(rdpRdp* rdp, void* usercontext)
2636{
2637 WINPR_ASSERT(rdp);
2638 rdp->ioContext = usercontext;
2639 return TRUE;
2640}
2641
2642void* rdp_get_io_callback_context(rdpRdp* rdp)
2643{
2644 WINPR_ASSERT(rdp);
2645 return rdp->ioContext;
2646}
2647
2648const char* rdp_finalize_flags_to_str(UINT32 flags, char* buffer, size_t size)
2649{
2650 char number[32] = WINPR_C_ARRAY_INIT;
2651 const UINT32 mask =
2652 (uint32_t)~(FINALIZE_SC_SYNCHRONIZE_PDU | FINALIZE_SC_CONTROL_COOPERATE_PDU |
2653 FINALIZE_SC_CONTROL_GRANTED_PDU | FINALIZE_SC_FONT_MAP_PDU |
2654 FINALIZE_CS_SYNCHRONIZE_PDU | FINALIZE_CS_CONTROL_COOPERATE_PDU |
2655 FINALIZE_CS_CONTROL_REQUEST_PDU | FINALIZE_CS_PERSISTENT_KEY_LIST_PDU |
2656 FINALIZE_CS_FONT_LIST_PDU | FINALIZE_DEACTIVATE_REACTIVATE);
2657
2658 if (flags & FINALIZE_SC_SYNCHRONIZE_PDU)
2659 winpr_str_append("FINALIZE_SC_SYNCHRONIZE_PDU", buffer, size, "|");
2660 if (flags & FINALIZE_SC_CONTROL_COOPERATE_PDU)
2661 winpr_str_append("FINALIZE_SC_CONTROL_COOPERATE_PDU", buffer, size, "|");
2662 if (flags & FINALIZE_SC_CONTROL_GRANTED_PDU)
2663 winpr_str_append("FINALIZE_SC_CONTROL_GRANTED_PDU", buffer, size, "|");
2664 if (flags & FINALIZE_SC_FONT_MAP_PDU)
2665 winpr_str_append("FINALIZE_SC_FONT_MAP_PDU", buffer, size, "|");
2666 if (flags & FINALIZE_CS_SYNCHRONIZE_PDU)
2667 winpr_str_append("FINALIZE_CS_SYNCHRONIZE_PDU", buffer, size, "|");
2668 if (flags & FINALIZE_CS_CONTROL_COOPERATE_PDU)
2669 winpr_str_append("FINALIZE_CS_CONTROL_COOPERATE_PDU", buffer, size, "|");
2670 if (flags & FINALIZE_CS_CONTROL_REQUEST_PDU)
2671 winpr_str_append("FINALIZE_CS_CONTROL_REQUEST_PDU", buffer, size, "|");
2672 if (flags & FINALIZE_CS_PERSISTENT_KEY_LIST_PDU)
2673 winpr_str_append("FINALIZE_CS_PERSISTENT_KEY_LIST_PDU", buffer, size, "|");
2674 if (flags & FINALIZE_CS_FONT_LIST_PDU)
2675 winpr_str_append("FINALIZE_CS_FONT_LIST_PDU", buffer, size, "|");
2676 if (flags & FINALIZE_DEACTIVATE_REACTIVATE)
2677 winpr_str_append("FINALIZE_DEACTIVATE_REACTIVATE", buffer, size, "|");
2678 if (flags & mask)
2679 winpr_str_append("UNKNOWN_FLAG", buffer, size, "|");
2680 if (flags == 0)
2681 winpr_str_append("NO_FLAG_SET", buffer, size, "|");
2682 (void)_snprintf(number, sizeof(number), " [0x%08" PRIx32 "]", flags);
2683 winpr_str_append(number, buffer, size, "");
2684 return buffer;
2685}
2686
2687BOOL rdp_finalize_reset_flags(rdpRdp* rdp, BOOL clearAll)
2688{
2689 WINPR_ASSERT(rdp);
2690 WLog_Print(rdp->log, WLOG_DEBUG, "[%s] reset finalize_sc_pdus", rdp_get_state_string(rdp));
2691 if (clearAll)
2692 rdp->finalize_sc_pdus = 0;
2693 else
2694 rdp->finalize_sc_pdus &= FINALIZE_DEACTIVATE_REACTIVATE;
2695
2696 return rdp_set_monitor_layout_pdu_state(rdp, FALSE);
2697}
2698
2699BOOL rdp_finalize_set_flag(rdpRdp* rdp, UINT32 flag)
2700{
2701 char buffer[1024] = WINPR_C_ARRAY_INIT;
2702
2703 WINPR_ASSERT(rdp);
2704
2705 WLog_Print(rdp->log, WLOG_DEBUG, "[%s] received flag %s", rdp_get_state_string(rdp),
2706 rdp_finalize_flags_to_str(flag, buffer, sizeof(buffer)));
2707 rdp->finalize_sc_pdus |= flag;
2708 return TRUE;
2709}
2710
2711BOOL rdp_finalize_is_flag_set(rdpRdp* rdp, UINT32 flag)
2712{
2713 WINPR_ASSERT(rdp);
2714 return (rdp->finalize_sc_pdus & flag) == flag;
2715}
2716
2717BOOL rdp_reset_rc4_encrypt_keys(rdpRdp* rdp)
2718{
2719 WINPR_ASSERT(rdp);
2720 rdp_free_rc4_encrypt_keys(rdp);
2721 rdp->rc4_encrypt_key = winpr_RC4_New(rdp->encrypt_key, rdp->rc4_key_len);
2722
2723 rdp->encrypt_use_count = 0;
2724 return rdp->rc4_encrypt_key != nullptr;
2725}
2726
2727void rdp_free_rc4_encrypt_keys(rdpRdp* rdp)
2728{
2729 WINPR_ASSERT(rdp);
2730 winpr_RC4_Free(rdp->rc4_encrypt_key);
2731 rdp->rc4_encrypt_key = nullptr;
2732}
2733
2734void rdp_free_rc4_decrypt_keys(rdpRdp* rdp)
2735{
2736 WINPR_ASSERT(rdp);
2737 winpr_RC4_Free(rdp->rc4_decrypt_key);
2738 rdp->rc4_decrypt_key = nullptr;
2739}
2740
2741BOOL rdp_reset_rc4_decrypt_keys(rdpRdp* rdp)
2742{
2743 WINPR_ASSERT(rdp);
2744 rdp_free_rc4_decrypt_keys(rdp);
2745 rdp->rc4_decrypt_key = winpr_RC4_New(rdp->decrypt_key, rdp->rc4_key_len);
2746
2747 rdp->decrypt_use_count = 0;
2748 return rdp->rc4_decrypt_key != nullptr;
2749}
2750
2751const char* rdp_security_flag_string(UINT32 securityFlags, char* buffer, size_t size)
2752{
2753 if (securityFlags & SEC_EXCHANGE_PKT)
2754 winpr_str_append("SEC_EXCHANGE_PKT", buffer, size, "|");
2755 if (securityFlags & SEC_TRANSPORT_REQ)
2756 winpr_str_append("SEC_TRANSPORT_REQ", buffer, size, "|");
2757 if (securityFlags & SEC_TRANSPORT_RSP)
2758 winpr_str_append("SEC_TRANSPORT_RSP", buffer, size, "|");
2759 if (securityFlags & SEC_ENCRYPT)
2760 winpr_str_append("SEC_ENCRYPT", buffer, size, "|");
2761 if (securityFlags & SEC_RESET_SEQNO)
2762 winpr_str_append("SEC_RESET_SEQNO", buffer, size, "|");
2763 if (securityFlags & SEC_IGNORE_SEQNO)
2764 winpr_str_append("SEC_IGNORE_SEQNO", buffer, size, "|");
2765 if (securityFlags & SEC_INFO_PKT)
2766 winpr_str_append("SEC_INFO_PKT", buffer, size, "|");
2767 if (securityFlags & SEC_LICENSE_PKT)
2768 winpr_str_append("SEC_LICENSE_PKT", buffer, size, "|");
2769 if (securityFlags & SEC_LICENSE_ENCRYPT_CS)
2770 winpr_str_append("SEC_LICENSE_ENCRYPT_CS", buffer, size, "|");
2771 if (securityFlags & SEC_LICENSE_ENCRYPT_SC)
2772 winpr_str_append("SEC_LICENSE_ENCRYPT_SC", buffer, size, "|");
2773 if (securityFlags & SEC_REDIRECTION_PKT)
2774 winpr_str_append("SEC_REDIRECTION_PKT", buffer, size, "|");
2775 if (securityFlags & SEC_SECURE_CHECKSUM)
2776 winpr_str_append("SEC_SECURE_CHECKSUM", buffer, size, "|");
2777 if (securityFlags & SEC_AUTODETECT_REQ)
2778 winpr_str_append("SEC_AUTODETECT_REQ", buffer, size, "|");
2779 if (securityFlags & SEC_AUTODETECT_RSP)
2780 winpr_str_append("SEC_AUTODETECT_RSP", buffer, size, "|");
2781 if (securityFlags & SEC_HEARTBEAT)
2782 winpr_str_append("SEC_HEARTBEAT", buffer, size, "|");
2783 if (securityFlags & SEC_FLAGSHI_VALID)
2784 winpr_str_append("SEC_FLAGSHI_VALID", buffer, size, "|");
2785 {
2786 char msg[32] = WINPR_C_ARRAY_INIT;
2787
2788 (void)_snprintf(msg, sizeof(msg), "[0x%08" PRIx32 "]", securityFlags);
2789 winpr_str_append(msg, buffer, size, "");
2790 }
2791 return buffer;
2792}
2793
2794static BOOL rdp_reset_remote_settings(rdpRdp* rdp)
2795{
2796 UINT32 flags = FREERDP_SETTINGS_REMOTE_MODE;
2797 WINPR_ASSERT(rdp);
2798 freerdp_settings_free(rdp->remoteSettings);
2799
2800 if (!freerdp_settings_get_bool(rdp->settings, FreeRDP_ServerMode))
2801 flags |= FREERDP_SETTINGS_SERVER_MODE;
2802 rdp->remoteSettings = freerdp_settings_new(flags);
2803 return rdp->remoteSettings != nullptr;
2804}
2805
2806BOOL rdp_set_backup_settings(rdpRdp* rdp)
2807{
2808 WINPR_ASSERT(rdp);
2809 freerdp_settings_free(rdp->originalSettings);
2810 rdp->originalSettings = freerdp_settings_clone(rdp->settings);
2811 if (!rdp->originalSettings)
2812 return FALSE;
2813 return rdp_reset_remote_settings(rdp);
2814}
2815
2816BOOL rdp_reset_runtime_settings(rdpRdp* rdp)
2817{
2818 WINPR_ASSERT(rdp);
2819 WINPR_ASSERT(rdp->context);
2820
2821 freerdp_settings_free(rdp->settings);
2822 rdp->context->settings = rdp->settings = freerdp_settings_clone(rdp->originalSettings);
2823
2824 if (!rdp->settings)
2825 return FALSE;
2826 return rdp_reset_remote_settings(rdp);
2827}
2828
2829static BOOL starts_with(const char* tok, const char* val)
2830{
2831 const size_t len = strlen(val);
2832 if (strncmp(tok, val, len) != 0)
2833 return FALSE;
2834 if (tok[len] != '=')
2835 return FALSE;
2836 return TRUE;
2837}
2838
2839static BOOL option_equals(const char* what, const char* val)
2840{
2841 return _stricmp(what, val) == 0;
2842}
2843
2844static BOOL parse_on_off_option(const char* value)
2845{
2846 WINPR_ASSERT(value);
2847 const char* sep = strchr(value, '=');
2848 if (!sep)
2849 return TRUE;
2850 if (option_equals("on", &sep[1]))
2851 return TRUE;
2852 if (option_equals("true", &sep[1]))
2853 return TRUE;
2854 if (option_equals("off", &sep[1]))
2855 return FALSE;
2856 if (option_equals("false", &sep[1]))
2857 return FALSE;
2858
2859 errno = 0;
2860 long val = strtol(value, nullptr, 0);
2861 if (errno == 0)
2862 return (val != 0);
2863
2864 return FALSE;
2865}
2866
2867#define STR(x) #x
2868
2869static BOOL option_is_runtime_checks(WINPR_ATTR_UNUSED wLog* log, const char* tok)
2870{
2871 const char* experimental[] = { STR(WITH_VERBOSE_WINPR_ASSERT) };
2872 for (size_t x = 0; x < ARRAYSIZE(experimental); x++)
2873 {
2874 const char* opt = experimental[x];
2875 if (starts_with(tok, opt))
2876 {
2877 return parse_on_off_option(tok);
2878 }
2879 }
2880 return FALSE;
2881}
2882
2883static BOOL option_is_experimental(WINPR_ATTR_UNUSED wLog* log, const char* tok)
2884{
2885 const char* experimental[] = { STR(WITH_DSP_EXPERIMENTAL), STR(WITH_VAAPI),
2886 STR(WITH_GFX_AV1), STR(WITH_VAAPI_H264_ENCODING),
2887 STR(WITH_MEDIACODEC), STR(WITH_CLIENT_SDL2),
2888 STR(WITH_OPENCL), STR(WITH_LIBRESSL),
2889 STR(WITH_MBEDTLS), STR(WITH_MEDIA_FOUNDATION),
2890 STR(WITH_KRB5_HEIMDAL) };
2891 for (size_t x = 0; x < ARRAYSIZE(experimental); x++)
2892 {
2893 const char* opt = experimental[x];
2894 if (starts_with(tok, opt))
2895 {
2896 return parse_on_off_option(tok);
2897 }
2898 }
2899 return FALSE;
2900}
2901
2902static BOOL option_is_debug(wLog* log, const char* tok)
2903{
2904 WINPR_ASSERT(log);
2905 const char* debug[] = {
2906 STR(WITH_DEBUG_ALL), STR(WITH_DEBUG_CERTIFICATE), STR(WITH_DEBUG_CAPABILITIES),
2907 STR(WITH_DEBUG_CHANNELS), STR(WITH_DEBUG_CLIPRDR), STR(WITH_DEBUG_CODECS),
2908 STR(WITH_DEBUG_DVC), STR(WITH_DEBUG_TSMF), STR(WITH_DEBUG_KBD),
2909 STR(WITH_DEBUG_LICENSE), STR(WITH_DEBUG_NEGO), STR(WITH_DEBUG_NLA),
2910 STR(WITH_DEBUG_TSG), STR(WITH_DEBUG_RAIL), STR(WITH_DEBUG_RDP),
2911 STR(WITH_DEBUG_RDPEI), STR(WITH_DEBUG_REDIR), STR(WITH_DEBUG_RDPDR),
2912 STR(WITH_DEBUG_RFX), STR(WITH_DEBUG_SCARD), STR(WITH_DEBUG_SND),
2913 STR(WITH_DEBUG_SVC), STR(WITH_DEBUG_TRANSPORT), STR(WITH_DEBUG_TIMEZONE),
2914 STR(WITH_DEBUG_WND), STR(WITH_DEBUG_RINGBUFFER), STR(WITH_DEBUG_SYMBOLS),
2915 STR(WITH_DEBUG_EVENTS), STR(WITH_DEBUG_MUTEX), STR(WITH_DEBUG_NTLM),
2916 STR(WITH_DEBUG_SDL_EVENTS), STR(WITH_DEBUG_SDL_KBD_EVENTS), STR(WITH_DEBUG_THREADS),
2917 STR(WITH_DEBUG_URBDRC)
2918 };
2919
2920 for (size_t x = 0; x < ARRAYSIZE(debug); x++)
2921 {
2922 const char* opt = debug[x];
2923 if (starts_with(tok, opt))
2924 return parse_on_off_option(tok);
2925 }
2926
2927 if (starts_with(tok, "WITH_DEBUG"))
2928 {
2929 WLog_Print(log, WLOG_WARN, "[BUG] Unmapped Debug-Build option '%s'.", tok);
2930 return parse_on_off_option(tok);
2931 }
2932
2933 return FALSE;
2934}
2935
2936static void log_build_warn(rdpRdp* rdp, const char* what, const char* msg,
2937 BOOL (*cmp)(wLog* log, const char* tok))
2938{
2939 WINPR_ASSERT(rdp);
2940 WINPR_PRAGMA_DIAG_PUSH
2941 WINPR_PRAGMA_DIAG_IGNORED_OVERLENGTH_STRINGS
2942
2943 size_t len = sizeof(FREERDP_BUILD_CONFIG);
2944 char* list = calloc(len, sizeof(char));
2945 char* config = _strdup(FREERDP_BUILD_CONFIG);
2946 WINPR_PRAGMA_DIAG_POP
2947
2948 if (config && list)
2949 {
2950 char* saveptr = nullptr;
2951 char* tok = strtok_s(config, " ", &saveptr);
2952 while (tok)
2953 {
2954 if (cmp(rdp->log, tok))
2955 winpr_str_append(tok, list, len, " ");
2956
2957 tok = strtok_s(nullptr, " ", &saveptr);
2958 }
2959 }
2960 free(config);
2961
2962 if (list)
2963 {
2964 if (strlen(list) > 0)
2965 {
2966 WLog_Print(rdp->log, WLOG_WARN, "*************************************************");
2967 WLog_Print(rdp->log, WLOG_WARN, "This build is using [%s] build options:", what);
2968
2969 char* saveptr = nullptr;
2970 char* tok = strtok_s(list, " ", &saveptr);
2971 while (tok)
2972 {
2973 WLog_Print(rdp->log, WLOG_WARN, "* '%s'", tok);
2974 tok = strtok_s(nullptr, " ", &saveptr);
2975 }
2976 WLog_Print(rdp->log, WLOG_WARN, "*");
2977 WLog_Print(rdp->log, WLOG_WARN, "[%s] build options %s", what, msg);
2978 WLog_Print(rdp->log, WLOG_WARN, "*************************************************");
2979 }
2980 }
2981 free(list);
2982}
2983
2984#define print_first_line(log, firstLine, what) \
2985 print_first_line_int((log), (firstLine), (what), __FILE__, __func__, __LINE__)
2986static void print_first_line_int(wLog* log, log_line_t* firstLine, const char* what,
2987 const char* file, const char* fkt, size_t line)
2988{
2989 WINPR_ASSERT(firstLine);
2990 if (!firstLine->fkt)
2991 {
2992 const DWORD level = WLOG_WARN;
2993 if (WLog_IsLevelActive(log, level))
2994 {
2995 WLog_PrintTextMessage(log, level, line, file, fkt,
2996 "*************************************************");
2997 WLog_PrintTextMessage(log, level, line, file, fkt,
2998 "[SSL] {%s} build or configuration missing:", what);
2999 }
3000 firstLine->line = line;
3001 firstLine->file = file;
3002 firstLine->fkt = fkt;
3003 firstLine->level = level;
3004 }
3005}
3006
3007static void print_last_line(wLog* log, const log_line_t* firstLine)
3008{
3009 WINPR_ASSERT(firstLine);
3010 if (firstLine->fkt)
3011 {
3012 if (WLog_IsLevelActive(log, firstLine->level))
3013 WLog_PrintTextMessage(log, firstLine->level, firstLine->line, firstLine->file,
3014 firstLine->fkt,
3015 "*************************************************");
3016 }
3017}
3018
3019static void log_build_warn_cipher(rdpRdp* rdp, log_line_t* firstLine, WINPR_CIPHER_TYPE md,
3020 const char* what)
3021{
3022 BOOL haveCipher = FALSE;
3023
3024 char key[WINPR_CIPHER_MAX_KEY_LENGTH] = WINPR_C_ARRAY_INIT;
3025 char iv[WINPR_CIPHER_MAX_IV_LENGTH] = WINPR_C_ARRAY_INIT;
3026
3027 /* RC4 only exists in the compatibility functions winpr_RC4_*
3028 * winpr_Cipher_* does not support that. */
3029 if (md == WINPR_CIPHER_ARC4_128)
3030 {
3031 WINPR_RC4_CTX* enc = winpr_RC4_New(key, sizeof(key));
3032 haveCipher = enc != nullptr;
3033 winpr_RC4_Free(enc);
3034 }
3035 else
3036 {
3037 WINPR_CIPHER_CTX* enc =
3038 winpr_Cipher_NewEx(md, WINPR_ENCRYPT, key, sizeof(key), iv, sizeof(iv));
3039 WINPR_CIPHER_CTX* dec =
3040 winpr_Cipher_NewEx(md, WINPR_DECRYPT, key, sizeof(key), iv, sizeof(iv));
3041 if (enc && dec)
3042 haveCipher = TRUE;
3043
3044 winpr_Cipher_Free(enc);
3045 winpr_Cipher_Free(dec);
3046 }
3047
3048 if (!haveCipher)
3049 {
3050 print_first_line(rdp->log, firstLine, "Cipher");
3051 WLog_Print(rdp->log, WLOG_WARN, "* %s: %s", winpr_cipher_type_to_string(md), what);
3052 }
3053}
3054
3055static void log_build_warn_hmac(rdpRdp* rdp, log_line_t* firstLine, WINPR_MD_TYPE md,
3056 const char* what)
3057{
3058 BOOL haveHmacX = FALSE;
3059 WINPR_HMAC_CTX* hmac = winpr_HMAC_New();
3060 if (hmac)
3061 {
3062 /* We need some key length, but there is no real limit here.
3063 * just take the cipher maximum key length as we already have that available.
3064 */
3065 char key[WINPR_CIPHER_MAX_KEY_LENGTH] = WINPR_C_ARRAY_INIT;
3066 haveHmacX = winpr_HMAC_Init(hmac, md, key, sizeof(key));
3067 }
3068 winpr_HMAC_Free(hmac);
3069
3070 if (!haveHmacX)
3071 {
3072 print_first_line(rdp->log, firstLine, "HMAC");
3073 WLog_Print(rdp->log, WLOG_WARN, " * %s: %s", winpr_md_type_to_string(md), what);
3074 }
3075}
3076
3077static void log_build_warn_hash(rdpRdp* rdp, log_line_t* firstLine, WINPR_MD_TYPE md,
3078 const char* what)
3079{
3080 BOOL haveDigestX = FALSE;
3081
3082 WINPR_DIGEST_CTX* digest = winpr_Digest_New();
3083 if (digest)
3084 haveDigestX = winpr_Digest_Init(digest, md);
3085 winpr_Digest_Free(digest);
3086
3087 if (!haveDigestX)
3088 {
3089 print_first_line(rdp->log, firstLine, "Digest");
3090 WLog_Print(rdp->log, WLOG_WARN, " * %s: %s", winpr_md_type_to_string(md), what);
3091 }
3092}
3093
3094static void log_build_warn_ssl(rdpRdp* rdp)
3095{
3096 WINPR_ASSERT(rdp);
3097
3098 log_line_t firstHashLine = WINPR_C_ARRAY_INIT;
3099 log_build_warn_hash(rdp, &firstHashLine, WINPR_MD_MD4, "NTLM support not available");
3100 log_build_warn_hash(rdp, &firstHashLine, WINPR_MD_MD5,
3101 "NTLM, assistance files with encrypted passwords, autoreconnect cookies, "
3102 "licensing and RDP security will not work");
3103 log_build_warn_hash(rdp, &firstHashLine, WINPR_MD_SHA1,
3104 "assistance files with encrypted passwords, Kerberos, Smartcard Logon, RDP "
3105 "security support not available");
3106 log_build_warn_hash(
3107 rdp, &firstHashLine, WINPR_MD_SHA256,
3108 "file clipboard, AAD gateway, NLA security and certificates might not work");
3109 print_last_line(rdp->log, &firstHashLine);
3110
3111 log_line_t firstHmacLine = WINPR_C_ARRAY_INIT;
3112 log_build_warn_hmac(rdp, &firstHmacLine, WINPR_MD_MD5, "Autoreconnect cookie not supported");
3113 log_build_warn_hmac(rdp, &firstHmacLine, WINPR_MD_SHA1, "RDP security not supported");
3114 print_last_line(rdp->log, &firstHmacLine);
3115
3116 log_line_t firstCipherLine = WINPR_C_ARRAY_INIT;
3117 log_build_warn_cipher(rdp, &firstCipherLine, WINPR_CIPHER_ARC4_128,
3118 "assistance files with encrypted passwords, NTLM, RDP licensing and RDP "
3119 "security will not work");
3120 log_build_warn_cipher(rdp, &firstCipherLine, WINPR_CIPHER_DES_EDE3_CBC,
3121 "RDP security FIPS mode will not work");
3122 log_build_warn_cipher(
3123 rdp, &firstCipherLine, WINPR_CIPHER_AES_128_CBC,
3124 "assistance file encrypted LHTicket will not work and ARM gateway might not");
3125 log_build_warn_cipher(rdp, &firstCipherLine, WINPR_CIPHER_AES_192_CBC,
3126 "ARM gateway might not work");
3127 log_build_warn_cipher(rdp, &firstCipherLine, WINPR_CIPHER_AES_256_CBC,
3128 "ARM gateway might not work");
3129 print_last_line(rdp->log, &firstCipherLine);
3130}
3131
3132void rdp_log_build_warnings(rdpRdp* rdp)
3133{
3134 static unsigned count = 0;
3135
3136 WINPR_ASSERT(rdp);
3137 /* Since this function is called in context creation routines stop logging
3138 * this issue repeatedly. This is required for proxy, which would otherwise
3139 * spam the log with these. */
3140 if (count > 0)
3141 return;
3142 count++;
3143 log_build_warn(rdp, "experimental", "might crash the application", option_is_experimental);
3144 log_build_warn(rdp, "debug", "might leak sensitive information (credentials, ...)",
3145 option_is_debug);
3146 log_build_warn(rdp, "runtime-check", "might slow down the application",
3147 option_is_runtime_checks);
3148 log_build_warn_ssl(rdp);
3149}
3150
3151size_t rdp_get_event_handles(rdpRdp* rdp, HANDLE* handles, uint32_t count)
3152{
3153 size_t nCount = transport_get_event_handles(rdp->transport, handles, count);
3154
3155 if (nCount == 0)
3156 return 0;
3157
3158 if (count < nCount + 2UL)
3159 return 0;
3160
3161 handles[nCount++] = utils_get_abort_event(rdp);
3162 handles[nCount++] = freerdp_timer_get_event(rdp->timer);
3163 return nCount;
3164}
WINPR_JSON_Delete
WINPR_API void WINPR_JSON_Delete(WINPR_JSON *item)
Delete a WinPR JSON wrapper object.
Definition c-json.c:103
freerdp_settings_new
FREERDP_API rdpSettings * freerdp_settings_new(DWORD flags)
creates a new setting struct
Definition core/settings.c:813
freerdp_settings_clone
FREERDP_API rdpSettings * freerdp_settings_clone(const rdpSettings *settings)
Creates a deep copy of settings.
Definition core/settings.c:1622
freerdp_settings_set_pointer_len
WINPR_ATTR_NODISCARD FREERDP_API BOOL freerdp_settings_set_pointer_len(rdpSettings *settings, FreeRDP_Settings_Keys_Pointer id, const void *data, size_t len)
Set a pointer to value data.
Definition common/settings.c:1487
freerdp_settings_free
FREERDP_API void freerdp_settings_free(rdpSettings *settings)
Free a settings struct with all data in it.
Definition core/settings.c:1374
FREERDP_SETTINGS_SERVER_MODE
#define FREERDP_SETTINGS_SERVER_MODE
Definition include/freerdp/settings.h:80
freerdp_settings_set_string
WINPR_ATTR_NODISCARD FREERDP_API BOOL freerdp_settings_set_string(rdpSettings *settings, FreeRDP_Settings_Keys_String id, const char *val)
Sets a string settings value. The param is copied.
Definition settings_getters.c:3747
freerdp_settings_get_bool
WINPR_ATTR_NODISCARD FREERDP_API BOOL freerdp_settings_get_bool(const rdpSettings *settings, FreeRDP_Settings_Keys_Bool id)
Returns a boolean settings value.
MONITOR_DEF
Definition settings_types.h:413