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#include <winpr/ssl.h>
32
33#include "rdp.h"
34
35#include "state.h"
36#include "info.h"
37#include "utils.h"
38#include "mcs.h"
39#include "redirection.h"
40
41#include <freerdp/codec/bulk.h>
42#include <freerdp/crypto/per.h>
43#include <freerdp/log.h>
44#include <freerdp/buildflags.h>
45
46#define RDP_TAG FREERDP_TAG("core.rdp")
47
48typedef struct
49{
50 const char* file;
51 const char* fkt;
52 size_t line;
53 DWORD level;
54} log_line_t;
55
56static const char* DATA_PDU_TYPE_STRINGS[80] = {
57 "?",
58 "?", /* 0x00 - 0x01 */
59 "Update", /* 0x02 */
60 "?",
61 "?",
62 "?",
63 "?",
64 "?",
65 "?",
66 "?",
67 "?", /* 0x03 - 0x0A */
68 "?",
69 "?",
70 "?",
71 "?",
72 "?",
73 "?",
74 "?",
75 "?",
76 "?", /* 0x0B - 0x13 */
77 "Control", /* 0x14 */
78 "?",
79 "?",
80 "?",
81 "?",
82 "?",
83 "?", /* 0x15 - 0x1A */
84 "Pointer", /* 0x1B */
85 "Input", /* 0x1C */
86 "?",
87 "?", /* 0x1D - 0x1E */
88 "Synchronize", /* 0x1F */
89 "?", /* 0x20 */
90 "Refresh Rect", /* 0x21 */
91 "Play Sound", /* 0x22 */
92 "Suppress Output", /* 0x23 */
93 "Shutdown Request", /* 0x24 */
94 "Shutdown Denied", /* 0x25 */
95 "Save Session Info", /* 0x26 */
96 "Font List", /* 0x27 */
97 "Font Map", /* 0x28 */
98 "Set Keyboard Indicators", /* 0x29 */
99 "?", /* 0x2A */
100 "Bitmap Cache Persistent List", /* 0x2B */
101 "Bitmap Cache Error", /* 0x2C */
102 "Set Keyboard IME Status", /* 0x2D */
103 "Offscreen Cache Error", /* 0x2E */
104 "Set Error Info", /* 0x2F */
105 "Draw Nine Grid Error", /* 0x30 */
106 "Draw GDI+ Error", /* 0x31 */
107 "ARC Status", /* 0x32 */
108 "?",
109 "?",
110 "?", /* 0x33 - 0x35 */
111 "Status Info", /* 0x36 */
112 "Monitor Layout", /* 0x37 */
113 "FrameAcknowledge",
114 "?",
115 "?", /* 0x38 - 0x40 */
116 "?",
117 "?",
118 "?",
119 "?",
120 "?",
121 "?" /* 0x41 - 0x46 */
122};
123
124#define rdp_check_monitor_layout_pdu_state(rdp, expected) \
125 rdp_check_monitor_layout_pdu_state_(rdp, expected, __FILE__, __func__, __LINE__)
126
127WINPR_ATTR_NODISCARD
128static BOOL rdp_check_monitor_layout_pdu_state_(const rdpRdp* rdp, BOOL expected, const char* file,
129 const char* fkt, size_t line)
130{
131 WINPR_ASSERT(rdp);
132 if (expected != rdp->monitor_layout_pdu)
133 {
134 const DWORD log_level = WLOG_ERROR;
135 if (WLog_IsLevelActive(rdp->log, log_level))
136 {
137 WLog_PrintTextMessage(rdp->log, log_level, line, file, fkt,
138 "Expected rdp->monitor_layout_pdu == %s",
139 expected ? "TRUE" : "FALSE");
140 }
141 return FALSE;
142 }
143 return TRUE;
144}
145
146#define rdp_set_monitor_layout_pdu_state(rdp, expected) \
147 rdp_set_monitor_layout_pdu_state_(rdp, expected, __FILE__, __func__, __LINE__)
148WINPR_ATTR_NODISCARD
149static BOOL rdp_set_monitor_layout_pdu_state_(rdpRdp* rdp, BOOL value, const char* file,
150 const char* fkt, size_t line)
151{
152
153 WINPR_ASSERT(rdp);
154 if (value && (value == rdp->monitor_layout_pdu))
155 {
156 const DWORD log_level = WLOG_WARN;
157 if (WLog_IsLevelActive(rdp->log, log_level))
158 {
159 WLog_PrintTextMessage(rdp->log, log_level, line, file, fkt,
160 "rdp->monitor_layout_pdu == TRUE, expected FALSE");
161 }
162 return FALSE;
163 }
164 rdp->monitor_layout_pdu = value;
165 return TRUE;
166}
167
168const char* data_pdu_type_to_string(UINT8 type)
169{
170 if (type >= ARRAYSIZE(DATA_PDU_TYPE_STRINGS))
171 return "???";
172 return DATA_PDU_TYPE_STRINGS[type];
173}
174
175WINPR_ATTR_NODISCARD
176static BOOL rdp_read_flow_control_pdu(rdpRdp* rdp, wStream* s, UINT16* type, UINT16* channel_id);
177
178WINPR_ATTR_NODISCARD
179static BOOL rdp_write_share_control_header(rdpRdp* rdp, wStream* s, size_t length, UINT16 type,
180 UINT16 channel_id);
181
182WINPR_ATTR_NODISCARD
183static BOOL rdp_write_share_data_header(rdpRdp* rdp, wStream* s, size_t length, BYTE type,
184 UINT32 share_id);
185
196BOOL rdp_read_security_header(rdpRdp* rdp, wStream* s, UINT16* flags, UINT16* length)
197{
198 char buffer[256] = WINPR_C_ARRAY_INIT;
199 WINPR_ASSERT(s);
200 WINPR_ASSERT(flags);
201 WINPR_ASSERT(rdp);
202
203 /* Basic Security Header */
204 if ((length && (*length < 4)))
205 {
206 WLog_Print(rdp->log, WLOG_WARN,
207 "invalid security header length, have %" PRIu16 ", must be >= 4", *length);
208 return FALSE;
209 }
210 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
211 return FALSE;
212
213 *flags = Stream_Get_UINT16(s); /* flags */
214 const uint16_t flagsHi = Stream_Get_UINT16(s); /* flagsHi (unused) */
215 if ((*flags & SEC_FLAGSHI_VALID) != 0)
216 {
217 WLog_Print(rdp->log, WLOG_WARN,
218 "[MS-RDPBCGR] 2.2.8.1.1.2.1 Basic (TS_SECURITY_HEADER) SEC_FLAGSHI_VALID field "
219 "set: flagsHi=0x%04" PRIx16,
220 flagsHi);
221 }
222 WLog_Print(rdp->log, WLOG_TRACE, "%s",
223 rdp_security_flag_string(*flags, buffer, sizeof(buffer)));
224 if (length)
225 *length -= 4;
226
227 return TRUE;
228}
229
239BOOL rdp_write_security_header(rdpRdp* rdp, wStream* s, UINT16 flags)
240{
241 char buffer[256] = WINPR_C_ARRAY_INIT;
242 WINPR_ASSERT(s);
243 WINPR_ASSERT(rdp);
244
245 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, (s), 4))
246 return FALSE;
247
248 WLog_Print(rdp->log, WLOG_TRACE, "%s", rdp_security_flag_string(flags, buffer, sizeof(buffer)));
249 /* Basic Security Header */
250 WINPR_ASSERT((flags & SEC_FLAGSHI_VALID) == 0); /* SEC_FLAGSHI_VALID is unsupported */
251 Stream_Write_UINT16(s, flags); /* flags */
252 Stream_Write_UINT16(s, 0); /* flagsHi (unused) */
253 return TRUE;
254}
255
256BOOL rdp_read_share_control_header(rdpRdp* rdp, wStream* s, UINT16* tpktLength,
257 UINT16* remainingLength, UINT16* type, UINT16* channel_id)
258{
259 UINT16 len = 0;
260 UINT16 tmp = 0;
261
262 WINPR_ASSERT(rdp);
263 WINPR_ASSERT(s);
264 WINPR_ASSERT(type);
265 WINPR_ASSERT(channel_id);
266
267 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 2))
268 return FALSE;
269
270 /* Share Control Header */
271 Stream_Read_UINT16(s, len); /* totalLength */
272
273 /* If length is 0x8000 then we actually got a flow control PDU that we should ignore
274 http://msdn.microsoft.com/en-us/library/cc240576.aspx */
275 if (len == 0x8000)
276 {
277 if (!rdp_read_flow_control_pdu(rdp, s, type, channel_id))
278 return FALSE;
279 *channel_id = 0;
280 if (tpktLength)
281 *tpktLength = 8; /* Flow control PDU is 8 bytes */
282 if (remainingLength)
283 *remainingLength = 0;
284
285 char buffer[128] = WINPR_C_ARRAY_INIT;
286 WLog_Print(rdp->log, WLOG_DEBUG,
287 "[Flow control PDU] type=%s, tpktLength=%" PRIu16 ", remainingLength=%" PRIu16,
288 pdu_type_to_str(*type, buffer, sizeof(buffer)), tpktLength ? *tpktLength : 0u,
289 remainingLength ? *remainingLength : 0u);
290 return TRUE;
291 }
292
293 if (len < 4U)
294 {
295 WLog_Print(rdp->log, WLOG_ERROR,
296 "Invalid share control header, length is %" PRIu16 ", must be >4", len);
297 return FALSE;
298 }
299
300 if (tpktLength)
301 *tpktLength = len;
302
303 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 2))
304 return FALSE;
305
306 Stream_Read_UINT16(s, tmp); /* pduType */
307 *type = tmp & 0x0F; /* type is in the 4 least significant bits */
308
309 size_t remLen = len - 4;
310 if (len > 5)
311 {
312 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 2))
313 return FALSE;
314
315 Stream_Read_UINT16(s, *channel_id); /* pduSource */
316 remLen = len - 6;
317 }
318 else
319 *channel_id = 0; /* Windows XP can send such short DEACTIVATE_ALL PDUs. */
320
321 char buffer[128] = WINPR_C_ARRAY_INIT;
322 WLog_Print(rdp->log, WLOG_DEBUG, "type=%s, tpktLength=%" PRIu16 ", remainingLength=%" PRIuz,
323 pdu_type_to_str(*type, buffer, sizeof(buffer)), len, remLen);
324 if (remainingLength)
325 {
326 WINPR_ASSERT(remLen <= UINT16_MAX);
327 *remainingLength = (UINT16)remLen;
328 }
329 return Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, remLen);
330}
331
332BOOL rdp_write_share_control_header(rdpRdp* rdp, wStream* s, size_t length, UINT16 type,
333 UINT16 channel_id)
334{
335 WINPR_ASSERT(s);
336 WINPR_ASSERT(rdp);
337 if (length > UINT16_MAX)
338 return FALSE;
339
340 if (length < RDP_PACKET_HEADER_MAX_LENGTH)
341 return FALSE;
342 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, (s), 6))
343 return FALSE;
344 length -= RDP_PACKET_HEADER_MAX_LENGTH;
345 /* Share Control Header */
346 Stream_Write_UINT16(s, WINPR_ASSERTING_INT_CAST(uint16_t, length)); /* totalLength */
347 Stream_Write_UINT16(s, WINPR_ASSERTING_INT_CAST(uint16_t, type | 0x10)); /* pduType */
348 Stream_Write_UINT16(s, WINPR_ASSERTING_INT_CAST(uint16_t, channel_id)); /* pduSource */
349 return TRUE;
350}
351
352BOOL rdp_read_share_data_header(rdpRdp* rdp, wStream* s, UINT16* length, BYTE* type,
353 UINT32* shareId, BYTE* compressedType, UINT16* compressedLength)
354{
355 WINPR_ASSERT(s);
356 WINPR_ASSERT(rdp);
357
358 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 12))
359 return FALSE;
360
361 /* Share Data Header */
362 Stream_Read_UINT32(s, *shareId); /* shareId (4 bytes) */
363 Stream_Seek_UINT8(s); /* pad1 (1 byte) */
364 Stream_Seek_UINT8(s); /* streamId (1 byte) */
365 Stream_Read_UINT16(s, *length); /* uncompressedLength (2 bytes) */
366 Stream_Read_UINT8(s, *type); /* pduType2, Data PDU Type (1 byte) */
367 Stream_Read_UINT8(s, *compressedType); /* compressedType (1 byte) */
368 Stream_Read_UINT16(s, *compressedLength); /* compressedLength (2 bytes) */
369 return TRUE;
370}
371
372BOOL rdp_write_share_data_header(rdpRdp* rdp, wStream* s, size_t length, BYTE type, UINT32 share_id)
373{
374 const size_t headerLen = RDP_PACKET_HEADER_MAX_LENGTH + RDP_SHARE_CONTROL_HEADER_LENGTH +
375 RDP_SHARE_DATA_HEADER_LENGTH;
376
377 WINPR_ASSERT(s);
378 WINPR_ASSERT(rdp);
379 if (length > UINT16_MAX)
380 return FALSE;
381
382 if (length < headerLen)
383 return FALSE;
384 length -= headerLen;
385 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, (s), 12))
386 return FALSE;
387
388 /* Share Data Header */
389 Stream_Write_UINT32(s, share_id); /* shareId (4 bytes) */
390 Stream_Write_UINT8(s, 0); /* pad1 (1 byte) */
391 Stream_Write_UINT8(s, STREAM_LOW); /* streamId (1 byte) */
392 Stream_Write_UINT16(
393 s, WINPR_ASSERTING_INT_CAST(uint16_t, length)); /* uncompressedLength (2 bytes) */
394 Stream_Write_UINT8(s, type); /* pduType2, Data PDU Type (1 byte) */
395 Stream_Write_UINT8(s, 0); /* compressedType (1 byte) */
396 Stream_Write_UINT16(s, 0); /* compressedLength (2 bytes) */
397 return TRUE;
398}
399
400WINPR_ATTR_NODISCARD
401static BOOL rdp_security_stream_init(rdpRdp* rdp, wStream* s, BOOL sec_header, UINT16* sec_flags)
402{
403 WINPR_ASSERT(rdp);
404 WINPR_ASSERT(s);
405 WINPR_ASSERT(sec_flags);
406
407 if (rdp->do_crypt)
408 {
409 if (!Stream_SafeZero(s, 12))
410 return FALSE;
411
412 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
413 {
414 if (!Stream_SafeZero(s, 4))
415 return FALSE;
416 }
417
418 *sec_flags |= SEC_ENCRYPT;
419
420 if (rdp->do_secure_checksum)
421 *sec_flags |= SEC_SECURE_CHECKSUM;
422 }
423 else if (*sec_flags != 0 || sec_header)
424 {
425 if (!Stream_SafeZero(s, 4))
426 return FALSE;
427 }
428
429 return TRUE;
430}
431
432wStream* rdp_send_stream_init(rdpRdp* rdp, UINT16* sec_flags)
433{
434 wStream* s = nullptr;
435
436 WINPR_ASSERT(rdp);
437 WINPR_ASSERT(rdp->transport);
438
439 s = transport_send_stream_init(rdp->transport, 4096);
440
441 if (!s)
442 return nullptr;
443
444 if (!Stream_SafeZero(s, RDP_PACKET_HEADER_MAX_LENGTH))
445 goto fail;
446
447 if (!rdp_security_stream_init(rdp, s, FALSE, sec_flags))
448 goto fail;
449
450 return s;
451fail:
452 Stream_Release(s);
453 return nullptr;
454}
455
456wStream* rdp_send_stream_pdu_init(rdpRdp* rdp, UINT16* sec_flags)
457{
458 wStream* s = rdp_send_stream_init(rdp, sec_flags);
459
460 if (!s)
461 return nullptr;
462
463 if (!Stream_SafeZero(s, RDP_SHARE_CONTROL_HEADER_LENGTH))
464 goto fail;
465
466 return s;
467fail:
468 Stream_Release(s);
469 return nullptr;
470}
471
472wStream* rdp_data_pdu_init(rdpRdp* rdp, UINT16* sec_flags)
473{
474 wStream* s = rdp_send_stream_pdu_init(rdp, sec_flags);
475
476 if (!s)
477 return nullptr;
478
479 if (!Stream_SafeZero(s, RDP_SHARE_DATA_HEADER_LENGTH))
480 goto fail;
481
482 return s;
483fail:
484 Stream_Release(s);
485 return nullptr;
486}
487
488BOOL rdp_set_error_info(rdpRdp* rdp, UINT32 errorInfo)
489{
490 BOOL rc = TRUE;
491 WINPR_ASSERT(rdp);
492
493 rdp->errorInfo = errorInfo;
494
495 if (rdp->errorInfo != ERRINFO_SUCCESS)
496 {
497 rdpContext* context = rdp->context;
498 WINPR_ASSERT(context);
499
500 rdp_print_errinfo(rdp->errorInfo);
501
502 if (context)
503 {
504 freerdp_set_last_error_log(context, MAKE_FREERDP_ERROR(ERRINFO, errorInfo));
505
506 if (context->pubSub)
507 {
508 ErrorInfoEventArgs e = WINPR_C_ARRAY_INIT;
509 EventArgsInit(&e, "freerdp");
510 e.code = rdp->errorInfo;
511 rc = PubSub_OnErrorInfo(context->pubSub, context, &e) >= 0;
512 }
513 }
514 else
515 WLog_Print(rdp->log, WLOG_ERROR, "missing context=%p", (void*)context);
516 }
517 else
518 {
519 freerdp_set_last_error_log(rdp->context, FREERDP_ERROR_SUCCESS);
520 }
521
522 return rc;
523}
524
525wStream* rdp_message_channel_pdu_init(rdpRdp* rdp, UINT16* sec_flags)
526{
527 wStream* s = nullptr;
528
529 WINPR_ASSERT(rdp);
530
531 s = transport_send_stream_init(rdp->transport, 4096);
532
533 if (!s)
534 return nullptr;
535
536 if (!Stream_SafeZero(s, RDP_PACKET_HEADER_MAX_LENGTH))
537 goto fail;
538
539 if (!rdp_security_stream_init(rdp, s, TRUE, sec_flags))
540 goto fail;
541
542 return s;
543fail:
544 Stream_Release(s);
545 return nullptr;
546}
547
558BOOL rdp_read_header(rdpRdp* rdp, wStream* s, UINT16* length, UINT16* channelId)
559{
560 BYTE li = 0;
561 BYTE code = 0;
562 BYTE choice = 0;
563 UINT16 initiator = 0;
564
565 WINPR_ASSERT(rdp);
566 WINPR_ASSERT(rdp->settings);
567 WINPR_ASSERT(s);
568 DomainMCSPDU MCSPDU = (rdp->settings->ServerMode) ? DomainMCSPDU_SendDataRequest
569 : DomainMCSPDU_SendDataIndication;
570
571 *channelId = 0; /* Initialize in case of early abort */
572 if (!tpkt_read_header(s, length))
573 return FALSE;
574
575 if (!tpdu_read_header(s, &code, &li, *length))
576 return FALSE;
577
578 if (code != X224_TPDU_DATA)
579 {
580 if (code == X224_TPDU_DISCONNECT_REQUEST)
581 {
582 WLog_Print(rdp->log, WLOG_WARN, "Received X224_TPDU_DISCONNECT_REQUEST, terminating");
583 utils_abort_connect(rdp);
584 return TRUE;
585 }
586
587 WLog_Print(rdp->log, WLOG_WARN,
588 "Unexpected X224 TPDU type %s [%08" PRIx32 "] instead of %s",
589 tpdu_type_to_string(code), code, tpdu_type_to_string(X224_TPDU_DATA));
590 return FALSE;
591 }
592
593 if (!per_read_choice(s, &choice))
594 return FALSE;
595
596 const DomainMCSPDU domainMCSPDU = (DomainMCSPDU)(choice >> 2);
597
598 if (domainMCSPDU != MCSPDU)
599 {
600 if (domainMCSPDU != DomainMCSPDU_DisconnectProviderUltimatum)
601 {
602 WLog_Print(rdp->log, WLOG_WARN, "Received %s instead of %s",
603 mcs_domain_pdu_string(domainMCSPDU), mcs_domain_pdu_string(MCSPDU));
604 return FALSE;
605 }
606 }
607
608 MCSPDU = domainMCSPDU;
609
610 if (*length < 8U)
611 {
612 WLog_Print(rdp->log, WLOG_WARN, "TPDU invalid length, got %" PRIu16 ", expected at least 8",
613 *length);
614 return FALSE;
615 }
616
617 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, *length - 8))
618 return FALSE;
619
620 if (MCSPDU == DomainMCSPDU_DisconnectProviderUltimatum)
621 {
622 int reason = 0;
623 TerminateEventArgs e = WINPR_C_ARRAY_INIT;
624
625 if (!mcs_recv_disconnect_provider_ultimatum(rdp->mcs, s, &reason))
626 return FALSE;
627
628 rdpContext* context = rdp->context;
629 WINPR_ASSERT(context);
630 context->disconnectUltimatum = reason;
631
632 if (rdp->errorInfo == ERRINFO_SUCCESS)
633 {
639 UINT32 errorInfo = ERRINFO_RPC_INITIATED_DISCONNECT;
640 if (reason == Disconnect_Ultimatum_provider_initiated)
641 errorInfo = ERRINFO_RPC_INITIATED_DISCONNECT;
642 else if (reason == Disconnect_Ultimatum_user_requested)
643 errorInfo = ERRINFO_LOGOFF_BY_USER;
644
645 if (!rdp_set_error_info(rdp, errorInfo))
646 return FALSE;
647 }
648
649 WLog_Print(rdp->log, WLOG_DEBUG, "DisconnectProviderUltimatum: reason: %d", reason);
650 utils_abort_connect(rdp);
651 EventArgsInit(&e, "freerdp");
652 e.code = 0;
653 return PubSub_OnTerminate(rdp->pubSub, context, &e) >= 0;
654 }
655
656 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 5))
657 return FALSE;
658
659 if (!per_read_integer16(s, &initiator, MCS_BASE_CHANNEL_ID)) /* initiator (UserId) */
660 return FALSE;
661
662 if (!per_read_integer16(s, channelId, 0)) /* channelId */
663 return FALSE;
664
665 const uint8_t dataPriority = Stream_Get_UINT8(s); /* dataPriority + Segmentation (0x70) */
666 WLog_Print(rdp->log, WLOG_TRACE, "dataPriority=%" PRIu8, dataPriority);
667
668 if (!per_read_length(s, length)) /* userData (OCTET_STRING) */
669 return FALSE;
670
671 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, *length))
672 return FALSE;
673
674 return TRUE;
675}
676
687BOOL rdp_write_header(rdpRdp* rdp, wStream* s, size_t length, UINT16 channelId, UINT16 sec_flags)
688{
689 WINPR_ASSERT(rdp);
690 WINPR_ASSERT(rdp->settings);
691 WINPR_ASSERT(s);
692 WINPR_ASSERT(length >= RDP_PACKET_HEADER_MAX_LENGTH);
693 if (length > UINT16_MAX)
694 return FALSE;
695
696 DomainMCSPDU MCSPDU = (rdp->settings->ServerMode) ? DomainMCSPDU_SendDataIndication
697 : DomainMCSPDU_SendDataRequest;
698
699 if ((sec_flags & SEC_ENCRYPT) && (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS))
700 {
701 const UINT16 body_length = (UINT16)length - RDP_PACKET_HEADER_MAX_LENGTH;
702 const UINT16 pad = 8 - (body_length % 8);
703
704 if (pad != 8)
705 length += pad;
706 }
707
708 if (!mcs_write_domain_mcspdu_header(s, MCSPDU, (UINT16)length, 0))
709 return FALSE;
710 if (!per_write_integer16(s, rdp->mcs->userId, MCS_BASE_CHANNEL_ID)) /* initiator */
711 return FALSE;
712 if (!per_write_integer16(s, channelId, 0)) /* channelId */
713 return FALSE;
714 if (!Stream_EnsureRemainingCapacity(s, 3))
715 return FALSE;
716 Stream_Write_UINT8(s, 0x70); /* dataPriority + segmentation */
717 /*
718 * We always encode length in two bytes, even though we could use
719 * only one byte if length <= 0x7F. It is just easier that way,
720 * because we can leave room for fixed-length header, store all
721 * the data first and then store the header.
722 */
723 length = (length - RDP_PACKET_HEADER_MAX_LENGTH) | 0x8000;
724 Stream_Write_UINT16_BE(
725 s, WINPR_ASSERTING_INT_CAST(uint16_t, length)); /* userData (OCTET_STRING) */
726 return TRUE;
727}
728
729WINPR_ATTR_NODISCARD
730static BOOL rdp_security_stream_out(rdpRdp* rdp, wStream* s, size_t length, UINT16 sec_flags,
731 UINT32* pad)
732{
733 BOOL status = 0;
734 WINPR_ASSERT(rdp);
735 if (length > UINT16_MAX)
736 return FALSE;
737
738 *pad = 0;
739
740 if (sec_flags != 0)
741 {
742 WINPR_ASSERT(sec_flags <= UINT16_MAX);
743 if (!rdp_write_security_header(rdp, s, sec_flags))
744 return FALSE;
745
746 if (sec_flags & SEC_ENCRYPT)
747 {
748 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
749 {
750 BYTE* data = Stream_PointerAs(s, BYTE) + 12;
751 const size_t size = WINPR_ASSERTING_INT_CAST(size_t, (data - Stream_Buffer(s)));
752 if (size > length)
753 return FALSE;
754
755 length -= size;
756
757 Stream_Write_UINT16(s, 0x10); /* length */
758 Stream_Write_UINT8(s, 0x1); /* TSFIPS_VERSION 1*/
759 /* handle padding */
760 *pad = 8 - (length % 8);
761
762 if (*pad == 8)
763 *pad = 0;
764
765 if (*pad)
766 memset(data + length, 0, *pad);
767
768 Stream_Write_UINT8(s, WINPR_ASSERTING_INT_CAST(uint8_t, *pad));
769
770 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, s, 8))
771 return FALSE;
772 if (!security_hmac_signature(data, length, Stream_Pointer(s), 8, rdp))
773 return FALSE;
774
775 Stream_Seek(s, 8);
776 if (!security_fips_encrypt(data, length + *pad, rdp))
777 return FALSE;
778 }
779 else
780 {
781 const BYTE* data = Stream_PointerAs(s, const BYTE) + 8;
782 const size_t diff = Stream_GetPosition(s) + 8ULL;
783 if (diff > length)
784 return FALSE;
785 length -= diff;
786
787 if (!Stream_CheckAndLogRequiredCapacityWLog(rdp->log, s, 8))
788 return FALSE;
789 if (sec_flags & SEC_SECURE_CHECKSUM)
790 status = security_salted_mac_signature(rdp, data, (UINT32)length, TRUE,
791 Stream_Pointer(s), 8);
792 else
793 status = security_mac_signature(rdp, data, (UINT32)length,
794 Stream_PointerAs(s, BYTE), 8);
795
796 if (!status)
797 return FALSE;
798
799 Stream_Seek(s, 8);
800
801 if (!security_encrypt(Stream_Pointer(s), length, rdp))
802 return FALSE;
803 }
804 }
805 }
806
807 return TRUE;
808}
809
810WINPR_ATTR_NODISCARD
811static UINT32 rdp_get_sec_bytes(rdpRdp* rdp, UINT16 sec_flags)
812{
813 UINT32 sec_bytes = 0;
814
815 if (sec_flags & SEC_ENCRYPT)
816 {
817 sec_bytes = 12;
818
819 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
820 sec_bytes += 4;
821 }
822 else if (sec_flags != 0)
823 {
824 sec_bytes = 4;
825 }
826 else
827 {
828 sec_bytes = 0;
829 }
830
831 return sec_bytes;
832}
833
834BOOL rdp_send(rdpRdp* rdp, wStream* s, UINT16 channelId, UINT16 sec_flags)
835{
836 BOOL rc = FALSE;
837 UINT32 pad = 0;
838 BOOL should_unlock = FALSE;
839
840 if (!s)
841 return FALSE;
842
843 if (!rdp)
844 goto fail;
845
846 if (sec_flags & SEC_ENCRYPT)
847 {
848 security_lock(rdp);
849 should_unlock = TRUE;
850 }
851
852 {
853 size_t length = Stream_GetPosition(s);
854 Stream_ResetPosition(s);
855 if (!rdp_write_header(rdp, s, length, channelId, sec_flags))
856 goto fail;
857
858 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
859 goto fail;
860
861 length += pad;
862 if (!Stream_SetPosition(s, length))
863 goto fail;
864 Stream_SealLength(s);
865 }
866
867 if (transport_write(rdp->transport, s) < 0)
868 goto fail;
869
870 rc = TRUE;
871fail:
872 if (should_unlock)
873 security_unlock(rdp);
874 Stream_Release(s);
875 return rc;
876}
877
878BOOL rdp_send_pdu(rdpRdp* rdp, wStream* s, UINT16 type, UINT16 channel_id, UINT16 sec_flags)
879{
880 BOOL rc = FALSE;
881 UINT32 sec_bytes = 0;
882 size_t sec_hold = 0;
883 UINT32 pad = 0;
884 BOOL should_unlock = FALSE;
885
886 if (!s)
887 return FALSE;
888
889 if (!rdp)
890 goto fail;
891
892 if (sec_flags & SEC_ENCRYPT)
893 {
894 security_lock(rdp);
895 should_unlock = TRUE;
896 }
897
898 {
899 size_t length = Stream_GetPosition(s);
900 Stream_ResetPosition(s);
901 if (!rdp_write_header(rdp, s, length, MCS_GLOBAL_CHANNEL_ID, sec_flags))
902 goto fail;
903 sec_bytes = rdp_get_sec_bytes(rdp, sec_flags);
904 sec_hold = Stream_GetPosition(s);
905 Stream_Seek(s, sec_bytes);
906 if (!rdp_write_share_control_header(rdp, s, length - sec_bytes, type, channel_id))
907 goto fail;
908 if (!Stream_SetPosition(s, sec_hold))
909 goto fail;
910
911 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
912 goto fail;
913
914 length += pad;
915 if (!Stream_SetPosition(s, length))
916 goto fail;
917 Stream_SealLength(s);
918 }
919
920 if (transport_write(rdp->transport, s) < 0)
921 goto fail;
922
923 rc = TRUE;
924fail:
925 if (should_unlock)
926 security_unlock(rdp);
927 return rc;
928}
929
930BOOL rdp_send_data_pdu(rdpRdp* rdp, wStream* s, BYTE type, UINT16 channel_id, UINT16 sec_flags)
931{
932 BOOL rc = FALSE;
933 UINT32 sec_bytes = 0;
934 size_t sec_hold = 0;
935 UINT32 pad = 0;
936 BOOL should_unlock = FALSE;
937
938 if (!s)
939 return FALSE;
940
941 if (!rdp)
942 goto fail;
943
944 if (sec_flags & SEC_ENCRYPT)
945 {
946 security_lock(rdp);
947 should_unlock = TRUE;
948 }
949
950 {
951 size_t length = Stream_GetPosition(s);
952 Stream_ResetPosition(s);
953 if (!rdp_write_header(rdp, s, length, MCS_GLOBAL_CHANNEL_ID, sec_flags))
954 goto fail;
955 sec_bytes = rdp_get_sec_bytes(rdp, sec_flags);
956 sec_hold = Stream_GetPosition(s);
957 Stream_Seek(s, sec_bytes);
958 if (!rdp_write_share_control_header(rdp, s, length - sec_bytes, PDU_TYPE_DATA, channel_id))
959 goto fail;
960 if (!rdp_write_share_data_header(rdp, s, length - sec_bytes, type, rdp->settings->ShareId))
961 goto fail;
962 if (!Stream_SetPosition(s, sec_hold))
963 goto fail;
964
965 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
966 goto fail;
967
968 length += pad;
969 if (!Stream_SetPosition(s, length))
970 goto fail;
971 Stream_SealLength(s);
972 }
973 WLog_Print(rdp->log, WLOG_DEBUG,
974 "sending data (type=0x%x size=%" PRIuz " channelId=%" PRIu16 ")", type,
975 Stream_Length(s), channel_id);
976
977 rdp->outPackets++;
978 if (transport_write(rdp->transport, s) < 0)
979 goto fail;
980
981 rc = TRUE;
982fail:
983 if (should_unlock)
984 security_unlock(rdp);
985 Stream_Release(s);
986 return rc;
987}
988
989BOOL rdp_send_message_channel_pdu(rdpRdp* rdp, wStream* s, UINT16 sec_flags)
990{
991 BOOL rc = FALSE;
992 UINT32 pad = 0;
993 BOOL should_unlock = FALSE;
994
995 WINPR_ASSERT(rdp);
996 WINPR_ASSERT(s);
997
998 if (sec_flags & SEC_ENCRYPT)
999 {
1000 security_lock(rdp);
1001 should_unlock = TRUE;
1002 }
1003
1004 {
1005 size_t length = Stream_GetPosition(s);
1006 Stream_ResetPosition(s);
1007 if (!rdp_write_header(rdp, s, length, rdp->mcs->messageChannelId, sec_flags))
1008 goto fail;
1009
1010 if (!rdp_security_stream_out(rdp, s, length, sec_flags, &pad))
1011 goto fail;
1012
1013 length += pad;
1014 if (!Stream_SetPosition(s, length))
1015 goto fail;
1016 }
1017 Stream_SealLength(s);
1018
1019 if (transport_write(rdp->transport, s) < 0)
1020 goto fail;
1021
1022 rc = TRUE;
1023fail:
1024 if (should_unlock)
1025 security_unlock(rdp);
1026
1027 Stream_Release(s);
1028 return rc;
1029}
1030
1031WINPR_ATTR_NODISCARD
1032static BOOL rdp_recv_server_shutdown_denied_pdu(WINPR_ATTR_UNUSED rdpRdp* rdp,
1033 WINPR_ATTR_UNUSED wStream* s)
1034{
1035 return TRUE;
1036}
1037
1038WINPR_ATTR_NODISCARD
1039static BOOL rdp_recv_server_set_keyboard_indicators_pdu(rdpRdp* rdp, wStream* s)
1040{
1041 WINPR_ASSERT(rdp);
1042 WINPR_ASSERT(s);
1043
1044 rdpContext* context = rdp->context;
1045 WINPR_ASSERT(context);
1046 WINPR_ASSERT(context->update);
1047
1048 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1049 return FALSE;
1050
1051 const uint16_t unitId = Stream_Get_UINT16(s); /* unitId (2 bytes) */
1052 if (unitId != 0)
1053 {
1054 WLog_Print(rdp->log, WLOG_WARN,
1055 "[MS-RDPBCGR] 2.2.8.2.1.1 Set Keyboard Indicators PDU Data "
1056 "(TS_SET_KEYBOARD_INDICATORS_PDU)::unitId should be 0, is %" PRIu16,
1057 unitId);
1058 }
1059 const UINT16 ledFlags = Stream_Get_UINT16(s); /* ledFlags (2 bytes) */
1060 return IFCALLRESULT(TRUE, context->update->SetKeyboardIndicators, context, ledFlags);
1061}
1062
1063WINPR_ATTR_NODISCARD
1064static BOOL rdp_recv_server_set_keyboard_ime_status_pdu(rdpRdp* rdp, wStream* s)
1065{
1066 if (!rdp || !rdp->input)
1067 return FALSE;
1068
1069 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 10))
1070 return FALSE;
1071
1072 const uint16_t unitId = Stream_Get_UINT16(s); /* unitId (2 bytes) */
1073 if (unitId != 0)
1074 {
1075 WLog_Print(rdp->log, WLOG_WARN,
1076 "[MS-RDPBCGR] 2.2.8.2.2.1 Set Keyboard IME Status PDU Data "
1077 "(TS_SET_KEYBOARD_IME_STATUS_PDU)::unitId should be 0, is %" PRIu16,
1078 unitId);
1079 }
1080 const uint32_t imeState = Stream_Get_UINT32(s); /* imeState (4 bytes) */
1081 const uint32_t imeConvMode = Stream_Get_UINT32(s); /* imeConvMode (4 bytes) */
1082 return IFCALLRESULT(TRUE, rdp->update->SetKeyboardImeStatus, rdp->context, unitId, imeState,
1083 imeConvMode);
1084}
1085
1086WINPR_ATTR_NODISCARD
1087static BOOL rdp_recv_set_error_info_data_pdu(rdpRdp* rdp, wStream* s)
1088{
1089 UINT32 errorInfo = 0;
1090
1091 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1092 return FALSE;
1093
1094 Stream_Read_UINT32(s, errorInfo); /* errorInfo (4 bytes) */
1095 return rdp_set_error_info(rdp, errorInfo);
1096}
1097
1098WINPR_ATTR_NODISCARD
1099static BOOL rdp_recv_server_auto_reconnect_status_pdu(rdpRdp* rdp, wStream* s)
1100{
1101 UINT32 arcStatus = 0;
1102
1103 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1104 return FALSE;
1105
1106 Stream_Read_UINT32(s, arcStatus); /* arcStatus (4 bytes) */
1107 WLog_Print(rdp->log, WLOG_WARN, "AutoReconnectStatus: 0x%08" PRIX32 "", arcStatus);
1108 return TRUE;
1109}
1110
1111WINPR_ATTR_NODISCARD
1112static BOOL rdp_recv_server_status_info_pdu(rdpRdp* rdp, wStream* s)
1113{
1114 UINT32 statusCode = 0;
1115
1116 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1117 return FALSE;
1118
1119 Stream_Read_UINT32(s, statusCode); /* statusCode (4 bytes) */
1120
1121 if (rdp->update->ServerStatusInfo)
1122 return rdp->update->ServerStatusInfo(rdp->context, statusCode);
1123
1124 return TRUE;
1125}
1126
1127static void log_monitor(size_t idx, const MONITOR_DEF* monitor, wLog* log, DWORD level)
1128{
1129 WINPR_ASSERT(monitor);
1130
1131 WLog_Print(log, level, "[%" PRIuz "] {%dx%d-%dx%d} [0x%08" PRIx32 "]", idx, monitor->left,
1132 monitor->top, monitor->right, monitor->bottom, monitor->flags);
1133}
1134
1135static void log_monitor_configuration(wLog* log, const MONITOR_DEF* monitors, size_t count)
1136{
1137 const DWORD level = WLOG_DEBUG;
1138 WLog_Print(log, level, "[BEGIN] RemoteMonitors[%" PRIuz "]", count);
1139 for (size_t x = 0; x < count; x++)
1140 {
1141 const MONITOR_DEF* monitor = &monitors[x];
1142 log_monitor(x, monitor, log, level);
1143 }
1144 WLog_Print(log, level, "[END] RemoteMonitors[%" PRIuz "]", count);
1145}
1146
1147WINPR_ATTR_NODISCARD
1148static BOOL rdp_recv_monitor_layout_pdu(rdpRdp* rdp, wStream* s)
1149{
1150 BOOL ret = TRUE;
1151
1152 WINPR_ASSERT(rdp);
1153 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 4))
1154 return FALSE;
1155
1156 const UINT32 monitorCount = Stream_Get_UINT32(s); /* monitorCount (4 bytes) */
1157
1158 if (!Stream_CheckAndLogRequiredLengthOfSizeWLog(rdp->log, s, monitorCount, 20ull))
1159 return FALSE;
1160
1161 MONITOR_DEF* monitorDefArray = (MONITOR_DEF*)calloc(monitorCount, sizeof(MONITOR_DEF));
1162
1163 if (!monitorDefArray)
1164 return FALSE;
1165
1166 for (UINT32 index = 0; index < monitorCount; index++)
1167 {
1168 MONITOR_DEF* monitor = &monitorDefArray[index];
1169 Stream_Read_INT32(s, monitor->left); /* left (4 bytes) */
1170 Stream_Read_INT32(s, monitor->top); /* top (4 bytes) */
1171 Stream_Read_INT32(s, monitor->right); /* right (4 bytes) */
1172 Stream_Read_INT32(s, monitor->bottom); /* bottom (4 bytes) */
1173 Stream_Read_UINT32(s, monitor->flags); /* flags (4 bytes) */
1174 }
1175
1176 log_monitor_configuration(rdp->log, monitorDefArray, monitorCount);
1177 IFCALLRET(rdp->update->RemoteMonitors, ret, rdp->context, monitorCount, monitorDefArray);
1178 free(monitorDefArray);
1179 if (!ret)
1180 return FALSE;
1181 return rdp_set_monitor_layout_pdu_state(rdp, TRUE);
1182}
1183
1184state_run_t rdp_recv_data_pdu(rdpRdp* rdp, wStream* s)
1185{
1186 BYTE type = 0;
1187 wStream* cs = nullptr;
1188 UINT16 length = 0;
1189 UINT32 shareId = 0;
1190 BYTE compressedType = 0;
1191 UINT16 compressedLength = 0;
1192
1193 WINPR_ASSERT(rdp);
1194 if (!rdp_read_share_data_header(rdp, s, &length, &type, &shareId, &compressedType,
1195 &compressedLength))
1196 {
1197 WLog_Print(rdp->log, WLOG_ERROR, "rdp_read_share_data_header() failed");
1198 return STATE_RUN_FAILED;
1199 }
1200
1201 cs = s;
1202
1203 if (compressedType & PACKET_COMPRESSED)
1204 {
1205 if (compressedLength < 18)
1206 {
1207 WLog_Print(rdp->log, WLOG_ERROR,
1208 "bulk_decompress: not enough bytes for compressedLength %" PRIu16 "",
1209 compressedLength);
1210 return STATE_RUN_FAILED;
1211 }
1212
1213 UINT32 DstSize = 0;
1214 const BYTE* pDstData = nullptr;
1215 UINT16 SrcSize = compressedLength - 18;
1216
1217 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, SrcSize))
1218 {
1219 WLog_Print(rdp->log, WLOG_ERROR,
1220 "bulk_decompress: not enough bytes for compressedLength %" PRIu16 "",
1221 compressedLength);
1222 return STATE_RUN_FAILED;
1223 }
1224
1225 if (bulk_decompress(rdp->bulk, Stream_ConstPointer(s), SrcSize, &pDstData, &DstSize,
1226 compressedType))
1227 {
1228 cs = transport_take_from_pool(rdp->transport, DstSize);
1229 if (!cs)
1230 {
1231 WLog_Print(rdp->log, WLOG_ERROR, "Couldn't take stream from pool");
1232 return STATE_RUN_FAILED;
1233 }
1234
1235 Stream_ResetPosition(cs);
1236 Stream_Write(cs, pDstData, DstSize);
1237 Stream_SealLength(cs);
1238 Stream_ResetPosition(cs);
1239 }
1240 else
1241 {
1242 WLog_Print(rdp->log, WLOG_ERROR, "bulk_decompress() failed");
1243 return STATE_RUN_FAILED;
1244 }
1245
1246 Stream_Seek(s, SrcSize);
1247 }
1248
1249 WLog_Print(rdp->log, WLOG_DEBUG, "recv %s Data PDU (0x%02" PRIX8 "), length: %" PRIu16 "",
1250 data_pdu_type_to_string(type), type, length);
1251
1252 switch (type)
1253 {
1254 case DATA_PDU_TYPE_UPDATE:
1255 if (!update_recv(rdp->update, cs))
1256 {
1257 WLog_Print(rdp->log, WLOG_ERROR, "DATA_PDU_TYPE_UPDATE - update_recv() failed");
1258 goto out_fail;
1259 }
1260
1261 break;
1262
1263 case DATA_PDU_TYPE_CONTROL:
1264 if (!rdp_recv_server_control_pdu(rdp, cs))
1265 {
1266 WLog_Print(rdp->log, WLOG_ERROR,
1267 "DATA_PDU_TYPE_CONTROL - rdp_recv_server_control_pdu() failed");
1268 goto out_fail;
1269 }
1270
1271 break;
1272
1273 case DATA_PDU_TYPE_POINTER:
1274 if (!update_recv_pointer(rdp->update, cs))
1275 {
1276 WLog_Print(rdp->log, WLOG_ERROR,
1277 "DATA_PDU_TYPE_POINTER - update_recv_pointer() failed");
1278 goto out_fail;
1279 }
1280
1281 break;
1282
1283 case DATA_PDU_TYPE_SYNCHRONIZE:
1284 if (!rdp_recv_server_synchronize_pdu(rdp, cs))
1285 {
1286 WLog_Print(rdp->log, WLOG_ERROR,
1287 "DATA_PDU_TYPE_SYNCHRONIZE - rdp_recv_synchronize_pdu() failed");
1288 goto out_fail;
1289 }
1290
1291 break;
1292
1293 case DATA_PDU_TYPE_PLAY_SOUND:
1294 if (!update_recv_play_sound(rdp->update, cs))
1295 {
1296 WLog_Print(rdp->log, WLOG_ERROR,
1297 "DATA_PDU_TYPE_PLAY_SOUND - update_recv_play_sound() failed");
1298 goto out_fail;
1299 }
1300
1301 break;
1302
1303 case DATA_PDU_TYPE_SHUTDOWN_DENIED:
1304 if (!rdp_recv_server_shutdown_denied_pdu(rdp, cs))
1305 {
1306 WLog_Print(
1307 rdp->log, WLOG_ERROR,
1308 "DATA_PDU_TYPE_SHUTDOWN_DENIED - rdp_recv_server_shutdown_denied_pdu() failed");
1309 goto out_fail;
1310 }
1311
1312 break;
1313
1314 case DATA_PDU_TYPE_SAVE_SESSION_INFO:
1315 if (!rdp_recv_save_session_info(rdp, cs))
1316 {
1317 WLog_Print(rdp->log, WLOG_ERROR,
1318 "DATA_PDU_TYPE_SAVE_SESSION_INFO - rdp_recv_save_session_info() failed");
1319 goto out_fail;
1320 }
1321
1322 break;
1323
1324 case DATA_PDU_TYPE_FONT_MAP:
1325 if (!rdp_recv_font_map_pdu(rdp, cs))
1326 {
1327 WLog_Print(rdp->log, WLOG_ERROR,
1328 "DATA_PDU_TYPE_FONT_MAP - rdp_recv_font_map_pdu() failed");
1329 goto out_fail;
1330 }
1331
1332 break;
1333
1334 case DATA_PDU_TYPE_SET_KEYBOARD_INDICATORS:
1335 if (!rdp_recv_server_set_keyboard_indicators_pdu(rdp, cs))
1336 {
1337 WLog_Print(rdp->log, WLOG_ERROR,
1338 "DATA_PDU_TYPE_SET_KEYBOARD_INDICATORS - "
1339 "rdp_recv_server_set_keyboard_indicators_pdu() failed");
1340 goto out_fail;
1341 }
1342
1343 break;
1344
1345 case DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS:
1346 if (!rdp_recv_server_set_keyboard_ime_status_pdu(rdp, cs))
1347 {
1348 WLog_Print(rdp->log, WLOG_ERROR,
1349 "DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS - "
1350 "rdp_recv_server_set_keyboard_ime_status_pdu() failed");
1351 goto out_fail;
1352 }
1353
1354 break;
1355
1356 case DATA_PDU_TYPE_SET_ERROR_INFO:
1357 if (!rdp_recv_set_error_info_data_pdu(rdp, cs))
1358 {
1359 WLog_Print(
1360 rdp->log, WLOG_ERROR,
1361 "DATA_PDU_TYPE_SET_ERROR_INFO - rdp_recv_set_error_info_data_pdu() failed");
1362 goto out_fail;
1363 }
1364
1365 break;
1366
1367 case DATA_PDU_TYPE_ARC_STATUS:
1368 if (!rdp_recv_server_auto_reconnect_status_pdu(rdp, cs))
1369 {
1370 WLog_Print(rdp->log, WLOG_ERROR,
1371 "DATA_PDU_TYPE_ARC_STATUS - "
1372 "rdp_recv_server_auto_reconnect_status_pdu() failed");
1373 goto out_fail;
1374 }
1375
1376 break;
1377
1378 case DATA_PDU_TYPE_STATUS_INFO:
1379 if (!rdp_recv_server_status_info_pdu(rdp, cs))
1380 {
1381 WLog_Print(rdp->log, WLOG_ERROR,
1382 "DATA_PDU_TYPE_STATUS_INFO - rdp_recv_server_status_info_pdu() failed");
1383 goto out_fail;
1384 }
1385
1386 break;
1387
1388 case DATA_PDU_TYPE_MONITOR_LAYOUT:
1389 if (!rdp_recv_monitor_layout_pdu(rdp, cs))
1390 {
1391 WLog_Print(rdp->log, WLOG_ERROR,
1392 "DATA_PDU_TYPE_MONITOR_LAYOUT - rdp_recv_monitor_layout_pdu() failed");
1393 goto out_fail;
1394 }
1395
1396 break;
1397
1398 default:
1399 WLog_Print(rdp->log, WLOG_WARN,
1400 "[UNHANDLED] %s Data PDU (0x%02" PRIX8 "), length: %" PRIu16 "",
1401 data_pdu_type_to_string(type), type, length);
1402 break;
1403 }
1404
1405 if (cs != s)
1406 Stream_Release(cs);
1407
1408 return STATE_RUN_SUCCESS;
1409out_fail:
1410
1411 if (cs != s)
1412 Stream_Release(cs);
1413
1414 return STATE_RUN_FAILED;
1415}
1416
1417state_run_t rdp_recv_message_channel_pdu(rdpRdp* rdp, wStream* s, UINT16 securityFlags)
1418{
1419 WINPR_ASSERT(rdp);
1420 WINPR_ASSERT(s);
1421
1422 if (securityFlags & SEC_AUTODETECT_REQ)
1423 {
1424 /* Server Auto-Detect Request PDU */
1425 return autodetect_recv_request_packet(rdp->autodetect, RDP_TRANSPORT_TCP, s);
1426 }
1427
1428 if (securityFlags & SEC_AUTODETECT_RSP)
1429 {
1430 /* Client Auto-Detect Response PDU */
1431 return autodetect_recv_response_packet(rdp->autodetect, RDP_TRANSPORT_TCP, s);
1432 }
1433
1434 if (securityFlags & SEC_HEARTBEAT)
1435 {
1436 /* Heartbeat PDU */
1437 return rdp_recv_heartbeat_packet(rdp, s);
1438 }
1439
1440 if (securityFlags & SEC_TRANSPORT_REQ)
1441 {
1442 return multitransport_recv_request(rdp->multitransport, s);
1443 }
1444
1445 if (securityFlags & SEC_TRANSPORT_RSP)
1446 {
1447 return multitransport_recv_response(rdp->multitransport, s);
1448 }
1449
1450 if (securityFlags & SEC_LICENSE_PKT)
1451 {
1452 return license_recv(rdp->license, s);
1453 }
1454
1455 if (securityFlags & SEC_LICENSE_ENCRYPT_CS)
1456 {
1457 return license_recv(rdp->license, s);
1458 }
1459
1460 if (securityFlags & SEC_LICENSE_ENCRYPT_SC)
1461 {
1462 return license_recv(rdp->license, s);
1463 }
1464
1465 return STATE_RUN_SUCCESS;
1466}
1467
1468state_run_t rdp_recv_out_of_sequence_pdu(rdpRdp* rdp, wStream* s, UINT16 pduType, UINT16 length)
1469{
1470 state_run_t rc = STATE_RUN_FAILED;
1471 WINPR_ASSERT(rdp);
1472
1473 switch (pduType)
1474 {
1475 case PDU_TYPE_DATA:
1476 rc = rdp_recv_data_pdu(rdp, s);
1477 break;
1478 case PDU_TYPE_SERVER_REDIRECTION:
1479 rc = rdp_recv_enhanced_security_redirection_packet(rdp, s);
1480 break;
1481 case PDU_TYPE_FLOW_RESPONSE:
1482 case PDU_TYPE_FLOW_STOP:
1483 case PDU_TYPE_FLOW_TEST:
1484 rc = STATE_RUN_SUCCESS;
1485 break;
1486 default:
1487 {
1488 char buffer1[256] = WINPR_C_ARRAY_INIT;
1489 char buffer2[256] = WINPR_C_ARRAY_INIT;
1490
1491 WLog_Print(rdp->log, WLOG_ERROR, "expected %s, got %s",
1492 pdu_type_to_str(PDU_TYPE_DEMAND_ACTIVE, buffer1, sizeof(buffer1)),
1493 pdu_type_to_str(pduType, buffer2, sizeof(buffer2)));
1494 rc = STATE_RUN_FAILED;
1495 }
1496 break;
1497 }
1498
1499 if (!tpkt_ensure_stream_consumed(rdp->log, s, length))
1500 return STATE_RUN_FAILED;
1501 return rc;
1502}
1503
1504BOOL rdp_read_flow_control_pdu(rdpRdp* rdp, wStream* s, UINT16* type, UINT16* channel_id)
1505{
1506 /*
1507 * Read flow control PDU - documented in FlowPDU section in T.128
1508 * http://www.itu.int/rec/T-REC-T.128-199802-S/en
1509 * The specification for the PDU has pad8bits listed BEFORE pduTypeFlow.
1510 * However, so far pad8bits has always been observed to arrive AFTER pduTypeFlow.
1511 * Switched the order of these two fields to match this observation.
1512 */
1513 UINT8 pduType = 0;
1514
1515 WINPR_ASSERT(rdp);
1516 WINPR_ASSERT(s);
1517 WINPR_ASSERT(type);
1518 WINPR_ASSERT(channel_id);
1519
1520 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 6))
1521 return FALSE;
1522 Stream_Read_UINT8(s, pduType); /* pduTypeFlow */
1523 *type = pduType;
1524 Stream_Seek_UINT8(s); /* pad8bits */
1525 Stream_Seek_UINT8(s); /* flowIdentifier */
1526 Stream_Seek_UINT8(s); /* flowNumber */
1527 Stream_Read_UINT16(s, *channel_id); /* pduSource */
1528 return TRUE;
1529}
1530
1542BOOL rdp_decrypt(rdpRdp* rdp, wStream* s, UINT16* pLength, UINT16 securityFlags)
1543{
1544 BOOL res = FALSE;
1545 BYTE cmac[8] = WINPR_C_ARRAY_INIT;
1546 BYTE wmac[8] = WINPR_C_ARRAY_INIT;
1547 BOOL status = FALSE;
1548
1549 WINPR_ASSERT(rdp);
1550 WINPR_ASSERT(rdp->settings);
1551 WINPR_ASSERT(s);
1552 WINPR_ASSERT(pLength);
1553
1554 security_lock(rdp);
1555
1556 INT32 length = *pLength;
1557 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_NONE)
1558 {
1559 res = TRUE;
1560 goto unlock;
1561 }
1562
1563 if (rdp->settings->EncryptionMethods == ENCRYPTION_METHOD_FIPS)
1564 {
1565 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, 12))
1566 goto unlock;
1567
1568 UINT16 len = 0;
1569 Stream_Read_UINT16(s, len); /* 0x10 */
1570 if (len != 0x10)
1571 WLog_Print(rdp->log, WLOG_WARN, "ENCRYPTION_METHOD_FIPS length %" PRIu16 " != 0x10",
1572 len);
1573
1574 UINT16 version = 0;
1575 Stream_Read_UINT8(s, version); /* 0x1 */
1576 if (version != 1)
1577 WLog_Print(rdp->log, WLOG_WARN, "ENCRYPTION_METHOD_FIPS version %" PRIu16 " != 1",
1578 version);
1579
1580 BYTE pad = 0;
1581 Stream_Read_UINT8(s, pad);
1582 const BYTE* sig = Stream_ConstPointer(s);
1583 Stream_Seek(s, 8); /* signature */
1584 length -= 12;
1585 const INT32 padLength = length - pad;
1586
1587 if ((length <= 0) || (padLength <= 0) || (padLength > UINT16_MAX))
1588 {
1589 WLog_Print(rdp->log, WLOG_ERROR, "FATAL: invalid pad length %" PRId32, padLength);
1590 goto unlock;
1591 }
1592
1593 if (!security_fips_decrypt(Stream_Pointer(s), (size_t)length, rdp))
1594 goto unlock;
1595
1596 if (!security_fips_check_signature(Stream_ConstPointer(s), (size_t)padLength, sig, 8, rdp))
1597 goto unlock;
1598
1599 if (!Stream_SetLength(s, Stream_Length(s) - pad))
1600 goto unlock;
1601
1602 *pLength = (UINT16)padLength;
1603 }
1604 else
1605 {
1606 if (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, sizeof(wmac)))
1607 goto unlock;
1608
1609 Stream_Read(s, wmac, sizeof(wmac));
1610 length -= sizeof(wmac);
1611
1612 if (length <= 0)
1613 {
1614 WLog_Print(rdp->log, WLOG_ERROR, "FATAL: invalid length field");
1615 goto unlock;
1616 }
1617
1618 if (!security_decrypt(Stream_PointerAs(s, BYTE), (size_t)length, rdp))
1619 goto unlock;
1620
1621 if (securityFlags & SEC_SECURE_CHECKSUM)
1622 status = security_salted_mac_signature(rdp, Stream_ConstPointer(s), (UINT32)length,
1623 FALSE, cmac, sizeof(cmac));
1624 else
1625 status = security_mac_signature(rdp, Stream_ConstPointer(s), (UINT32)length, cmac,
1626 sizeof(cmac));
1627
1628 if (!status)
1629 goto unlock;
1630
1631 if (memcmp(wmac, cmac, sizeof(wmac)) != 0)
1632 {
1633 WLog_Print(rdp->log, WLOG_ERROR, "WARNING: invalid packet signature");
1634 /*
1635 * Because Standard RDP Security is totally broken,
1636 * and cannot protect against MITM, don't treat signature
1637 * verification failure as critical. This at least enables
1638 * us to work with broken RDP clients and servers that
1639 * generate invalid signatures.
1640 */
1641 // return FALSE;
1642 }
1643
1644 *pLength = (UINT16)length;
1645 }
1646 res = TRUE;
1647unlock:
1648 security_unlock(rdp);
1649 return res;
1650}
1651
1652const char* pdu_type_to_str(UINT16 pduType, char* buffer, size_t length)
1653{
1654 const char* str = nullptr;
1655 switch (pduType)
1656 {
1657 case PDU_TYPE_DEMAND_ACTIVE:
1658 str = "PDU_TYPE_DEMAND_ACTIVE";
1659 break;
1660 case PDU_TYPE_CONFIRM_ACTIVE:
1661 str = "PDU_TYPE_CONFIRM_ACTIVE";
1662 break;
1663 case PDU_TYPE_DEACTIVATE_ALL:
1664 str = "PDU_TYPE_DEACTIVATE_ALL";
1665 break;
1666 case PDU_TYPE_DATA:
1667 str = "PDU_TYPE_DATA";
1668 break;
1669 case PDU_TYPE_SERVER_REDIRECTION:
1670 str = "PDU_TYPE_SERVER_REDIRECTION";
1671 break;
1672 case PDU_TYPE_FLOW_TEST:
1673 str = "PDU_TYPE_FLOW_TEST";
1674 break;
1675 case PDU_TYPE_FLOW_RESPONSE:
1676 str = "PDU_TYPE_FLOW_RESPONSE";
1677 break;
1678 case PDU_TYPE_FLOW_STOP:
1679 str = "PDU_TYPE_FLOW_STOP";
1680 break;
1681 default:
1682 str = "PDU_TYPE_UNKNOWN";
1683 break;
1684 }
1685
1686 winpr_str_append(str, buffer, length, "");
1687 {
1688 char msg[32] = WINPR_C_ARRAY_INIT;
1689 (void)_snprintf(msg, sizeof(msg), "[0x%08" PRIx32 "]", pduType);
1690 winpr_str_append(msg, buffer, length, "");
1691 }
1692 return buffer;
1693}
1694
1700WINPR_ATTR_NODISCARD
1701static state_run_t rdp_recv_tpkt_pdu(rdpRdp* rdp, wStream* s)
1702{
1703 state_run_t rc = STATE_RUN_SUCCESS;
1704 UINT16 length = 0;
1705 UINT16 pduType = 0;
1706 UINT16 pduSource = 0;
1707 UINT16 channelId = 0;
1708 UINT16 securityFlags = 0;
1709
1710 WINPR_ASSERT(rdp);
1711 WINPR_ASSERT(rdp->context);
1712 WINPR_ASSERT(s);
1713
1714 freerdp* instance = rdp->context->instance;
1715 WINPR_ASSERT(instance);
1716
1717 if (!rdp_read_header(rdp, s, &length, &channelId))
1718 return STATE_RUN_FAILED;
1719
1720 if (freerdp_shall_disconnect_context(rdp->context))
1721 return STATE_RUN_SUCCESS;
1722
1723 if (rdp->autodetect->bandwidthMeasureStarted)
1724 {
1725 rdp->autodetect->bandwidthMeasureByteCount += length;
1726 }
1727
1728 if (rdp->mcs->messageChannelId && (channelId == rdp->mcs->messageChannelId))
1729 {
1730 rdp->inPackets++;
1731 return rdp_handle_message_channel(rdp, s, channelId, length);
1732 }
1733
1734 if (rdp->settings->UseRdpSecurityLayer)
1735 {
1736 if (!rdp_read_security_header(rdp, s, &securityFlags, &length))
1737 return STATE_RUN_FAILED;
1738
1739 if (securityFlags & (SEC_ENCRYPT | SEC_REDIRECTION_PKT))
1740 {
1741 if (!rdp_decrypt(rdp, s, &length, securityFlags))
1742 return STATE_RUN_FAILED;
1743 }
1744
1745 if (securityFlags & SEC_REDIRECTION_PKT)
1746 {
1747 /*
1748 * [MS-RDPBCGR] 2.2.13.2.1
1749 * - no share control header, nor the 2 byte pad
1750 */
1751 Stream_Rewind(s, 2);
1752 rdp->inPackets++;
1753
1754 rc = rdp_recv_enhanced_security_redirection_packet(rdp, s);
1755 goto out;
1756 }
1757 }
1758
1759 if (channelId == MCS_GLOBAL_CHANNEL_ID)
1760 {
1761 while (Stream_GetRemainingLength(s) > 3)
1762 {
1763 wStream subbuffer;
1764 wStream* sub = nullptr;
1765 size_t diff = 0;
1766 UINT16 remain = 0;
1767
1768 if (!rdp_read_share_control_header(rdp, s, nullptr, &remain, &pduType, &pduSource))
1769 return STATE_RUN_FAILED;
1770
1771 sub = Stream_StaticInit(&subbuffer, Stream_Pointer(s), remain);
1772 if (!Stream_SafeSeek(s, remain))
1773 return STATE_RUN_FAILED;
1774
1775 rdp->settings->PduSource = pduSource;
1776 rdp->inPackets++;
1777
1778 switch (pduType)
1779 {
1780 case PDU_TYPE_DATA:
1781 rc = rdp_recv_data_pdu(rdp, sub);
1782 if (state_run_failed(rc))
1783 return rc;
1784 break;
1785
1786 case PDU_TYPE_DEACTIVATE_ALL:
1787 if (!rdp_recv_deactivate_all(rdp, sub))
1788 {
1789 WLog_Print(rdp->log, WLOG_ERROR,
1790 "rdp_recv_tpkt_pdu: rdp_recv_deactivate_all() fail");
1791 return STATE_RUN_FAILED;
1792 }
1793
1794 break;
1795
1796 case PDU_TYPE_SERVER_REDIRECTION:
1797 return rdp_recv_enhanced_security_redirection_packet(rdp, sub);
1798
1799 case PDU_TYPE_FLOW_RESPONSE:
1800 case PDU_TYPE_FLOW_STOP:
1801 case PDU_TYPE_FLOW_TEST:
1802 WLog_Print(rdp->log, WLOG_DEBUG, "flow message 0x%04" PRIX16 "", pduType);
1803 /* http://msdn.microsoft.com/en-us/library/cc240576.aspx */
1804 if (!Stream_SafeSeek(sub, remain))
1805 return STATE_RUN_FAILED;
1806 break;
1807
1808 default:
1809 {
1810 char buffer[256] = WINPR_C_ARRAY_INIT;
1811 WLog_Print(rdp->log, WLOG_ERROR, "incorrect PDU type: %s",
1812 pdu_type_to_str(pduType, buffer, sizeof(buffer)));
1813 }
1814 break;
1815 }
1816
1817 diff = Stream_GetRemainingLength(sub);
1818 if (diff > 0)
1819 {
1820 char buffer[256] = WINPR_C_ARRAY_INIT;
1821 WLog_Print(rdp->log, WLOG_WARN,
1822 "pduType %s not properly parsed, %" PRIuz
1823 " bytes remaining unhandled. Skipping.",
1824 pdu_type_to_str(pduType, buffer, sizeof(buffer)), diff);
1825 }
1826 }
1827 }
1828 else
1829 {
1830 rdp->inPackets++;
1831
1832 if (!freerdp_channel_process(instance, s, channelId, length))
1833 return STATE_RUN_FAILED;
1834 }
1835
1836out:
1837 if (!tpkt_ensure_stream_consumed(rdp->log, s, length))
1838 return STATE_RUN_FAILED;
1839 return rc;
1840}
1841
1842WINPR_ATTR_NODISCARD
1843static state_run_t rdp_recv_fastpath_pdu(rdpRdp* rdp, wStream* s)
1844{
1845 UINT16 length = 0;
1846
1847 WINPR_ASSERT(rdp);
1848 rdpFastPath* fastpath = rdp->fastpath;
1849
1850 if (!fastpath_read_header_rdp(fastpath, s, &length))
1851 {
1852 WLog_Print(rdp->log, WLOG_ERROR, "rdp_recv_fastpath_pdu: fastpath_read_header_rdp() fail");
1853 return STATE_RUN_FAILED;
1854 }
1855
1856 if ((length == 0) || (!Stream_CheckAndLogRequiredLengthWLog(rdp->log, s, length)))
1857 {
1858 WLog_Print(rdp->log, WLOG_ERROR, "incorrect FastPath PDU header length %" PRIu16 "",
1859 length);
1860 return STATE_RUN_FAILED;
1861 }
1862
1863 if (rdp->autodetect->bandwidthMeasureStarted)
1864 {
1865 rdp->autodetect->bandwidthMeasureByteCount += length;
1866 }
1867
1868 if (!fastpath_decrypt(fastpath, s, &length))
1869 return STATE_RUN_FAILED;
1870
1871 return fastpath_recv_updates(rdp->fastpath, s);
1872}
1873
1874WINPR_ATTR_NODISCARD
1875static state_run_t rdp_recv_pdu(rdpRdp* rdp, wStream* s)
1876{
1877 const int rc = tpkt_verify_header(s);
1878 if (rc > 0)
1879 return rdp_recv_tpkt_pdu(rdp, s);
1880 else if (rc == 0)
1881 return rdp_recv_fastpath_pdu(rdp, s);
1882 else
1883 return STATE_RUN_FAILED;
1884}
1885
1886WINPR_ATTR_NODISCARD
1887static state_run_t rdp_handle_sc_flags(rdpRdp* rdp, wStream* s, UINT32 flag,
1888 CONNECTION_STATE nextState)
1889{
1890 const UINT32 mask = FINALIZE_SC_SYNCHRONIZE_PDU | FINALIZE_SC_CONTROL_COOPERATE_PDU |
1891 FINALIZE_SC_CONTROL_GRANTED_PDU | FINALIZE_SC_FONT_MAP_PDU;
1892 WINPR_ASSERT(rdp);
1893 state_run_t status = rdp_recv_pdu(rdp, s);
1894 if (state_run_success(status))
1895 {
1896 const UINT32 flags = rdp->finalize_sc_pdus & mask;
1897 if ((flags & flag) == flag)
1898 {
1899 if (!rdp_client_transition_to_state(rdp, nextState))
1900 status = STATE_RUN_FAILED;
1901 else
1902 status = STATE_RUN_SUCCESS;
1903 }
1904 else
1905 {
1906 char flag_buffer[256] = WINPR_C_ARRAY_INIT;
1907 char mask_buffer[256] = WINPR_C_ARRAY_INIT;
1908 WLog_Print(rdp->log, WLOG_WARN,
1909 "[%s] unexpected server message, expected flag %s [have %s]",
1910 rdp_get_state_string(rdp),
1911 rdp_finalize_flags_to_str(flag, flag_buffer, sizeof(flag_buffer)),
1912 rdp_finalize_flags_to_str(flags, mask_buffer, sizeof(mask_buffer)));
1913 }
1914 }
1915 return status;
1916}
1917
1918WINPR_ATTR_NODISCARD
1919static state_run_t rdp_client_exchange_monitor_layout(rdpRdp* rdp, wStream* s)
1920{
1921 WINPR_ASSERT(rdp);
1922
1923 if (!rdp_check_monitor_layout_pdu_state(rdp, FALSE))
1924 return STATE_RUN_FAILED;
1925
1926 /* We might receive unrelated messages from the server (channel traffic),
1927 * so only proceed if some flag changed
1928 */
1929 const UINT32 old = rdp->finalize_sc_pdus;
1930 state_run_t status = rdp_recv_pdu(rdp, s);
1931 const UINT32 now = rdp->finalize_sc_pdus;
1932 const BOOL changed = (old != now) || rdp->monitor_layout_pdu;
1933
1934 /* This PDU is optional, so if we received a finalize PDU continue there */
1935 if (state_run_success(status) && changed)
1936 {
1937 if (!rdp->monitor_layout_pdu)
1938 {
1939 if (!rdp_finalize_is_flag_set(rdp, FINALIZE_SC_SYNCHRONIZE_PDU))
1940 return STATE_RUN_FAILED;
1941 }
1942
1943 status = rdp_client_connect_finalize(rdp);
1944 if (state_run_success(status) && !rdp->monitor_layout_pdu)
1945 status = STATE_RUN_TRY_AGAIN;
1946 }
1947 return status;
1948}
1949
1950WINPR_ATTR_NODISCARD
1951static state_run_t rdp_recv_callback_int(WINPR_ATTR_UNUSED rdpTransport* transport, wStream* s,
1952 void* extra)
1953{
1954 state_run_t status = STATE_RUN_SUCCESS;
1955 rdpRdp* rdp = (rdpRdp*)extra;
1956
1957 WINPR_ASSERT(transport);
1958 WINPR_ASSERT(rdp);
1959 WINPR_ASSERT(s);
1960
1961 switch (rdp_get_state(rdp))
1962 {
1963 case CONNECTION_STATE_NEGO:
1964 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_REQUEST))
1965 status = STATE_RUN_FAILED;
1966 else
1967 status = STATE_RUN_CONTINUE;
1968 break;
1969 case CONNECTION_STATE_NLA:
1970 if (nla_get_state(rdp->nla) < NLA_STATE_AUTH_INFO)
1971 {
1972 if (nla_recv_pdu(rdp->nla, s) < 1)
1973 {
1974 WLog_Print(rdp->log, WLOG_ERROR, "%s - nla_recv_pdu() fail",
1975 rdp_get_state_string(rdp));
1976 status = STATE_RUN_FAILED;
1977 }
1978 }
1979 else if (nla_get_state(rdp->nla) == NLA_STATE_POST_NEGO)
1980 {
1981 if (nego_recv(rdp->transport, s, (void*)rdp->nego) < 0)
1982 return STATE_RUN_FAILED;
1983
1984 if (!nego_update_settings_from_state(rdp->nego, rdp->settings))
1985 return STATE_RUN_FAILED;
1986
1987 if (nego_get_state(rdp->nego) != NEGO_STATE_FINAL)
1988 {
1989 WLog_Print(rdp->log, WLOG_ERROR, "%s - nego_recv() fail",
1990 rdp_get_state_string(rdp));
1991 status = STATE_RUN_FAILED;
1992 }
1993 else if (!nla_set_state(rdp->nla, NLA_STATE_FINAL))
1994 status = STATE_RUN_FAILED;
1995 }
1996
1997 if (state_run_success(status))
1998 {
1999 if (nla_get_state(rdp->nla) == NLA_STATE_AUTH_INFO)
2000 {
2001 transport_set_nla_mode(rdp->transport, FALSE);
2002
2003 if (rdp->settings->VmConnectMode)
2004 {
2005 if (!nego_set_state(rdp->nego, NEGO_STATE_NLA))
2006 status = STATE_RUN_FAILED;
2007 else if (!nego_set_requested_protocols(rdp->nego,
2008 PROTOCOL_HYBRID | PROTOCOL_SSL))
2009 status = STATE_RUN_FAILED;
2010 else if (!nego_send_negotiation_request(rdp->nego))
2011 status = STATE_RUN_FAILED;
2012 else if (!nla_set_state(rdp->nla, NLA_STATE_POST_NEGO))
2013 status = STATE_RUN_FAILED;
2014 }
2015 else
2016 {
2017 if (!nla_set_state(rdp->nla, NLA_STATE_FINAL))
2018 status = STATE_RUN_FAILED;
2019 }
2020 }
2021 }
2022 if (state_run_success(status))
2023 {
2024
2025 if (nla_get_state(rdp->nla) == NLA_STATE_FINAL)
2026 {
2027 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_REQUEST))
2028 status = STATE_RUN_FAILED;
2029 else
2030 status = STATE_RUN_CONTINUE;
2031 }
2032 }
2033 break;
2034
2035 case CONNECTION_STATE_AAD:
2036 if (aad_recv(rdp->aad, s) < 1)
2037 {
2038 WLog_Print(rdp->log, WLOG_ERROR, "%s - aad_recv() fail", rdp_get_state_string(rdp));
2039 status = STATE_RUN_FAILED;
2040 }
2041 if (state_run_success(status))
2042 {
2043 if (aad_get_state(rdp->aad) == AAD_STATE_FINAL)
2044 {
2045 transport_set_aad_mode(rdp->transport, FALSE);
2046 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_REQUEST))
2047 status = STATE_RUN_FAILED;
2048 else
2049 status = STATE_RUN_CONTINUE;
2050 }
2051 }
2052 break;
2053
2054 case CONNECTION_STATE_MCS_CREATE_REQUEST:
2055 if (!mcs_client_begin(rdp->mcs))
2056 {
2057 WLog_Print(rdp->log, WLOG_ERROR, "%s - mcs_client_begin() fail",
2058 rdp_get_state_string(rdp));
2059 status = STATE_RUN_FAILED;
2060 }
2061 else if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CREATE_RESPONSE))
2062 status = STATE_RUN_FAILED;
2063 else if (Stream_GetRemainingLength(s) > 0)
2064 status = STATE_RUN_CONTINUE;
2065 break;
2066
2067 case CONNECTION_STATE_MCS_CREATE_RESPONSE:
2068 if (!mcs_recv_connect_response(rdp->mcs, s))
2069 {
2070 WLog_Print(rdp->log, WLOG_ERROR, "mcs_recv_connect_response failure");
2071 status = STATE_RUN_FAILED;
2072 }
2073 else
2074 {
2075 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_ERECT_DOMAIN))
2076 status = STATE_RUN_FAILED;
2077 else if (!mcs_send_erect_domain_request(rdp->mcs))
2078 {
2079 WLog_Print(rdp->log, WLOG_ERROR, "mcs_send_erect_domain_request failure");
2080 status = STATE_RUN_FAILED;
2081 }
2082 else if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_ATTACH_USER))
2083 status = STATE_RUN_FAILED;
2084 else if (!mcs_send_attach_user_request(rdp->mcs))
2085 {
2086 WLog_Print(rdp->log, WLOG_ERROR, "mcs_send_attach_user_request failure");
2087 status = STATE_RUN_FAILED;
2088 }
2089 else if (!rdp_client_transition_to_state(rdp,
2090 CONNECTION_STATE_MCS_ATTACH_USER_CONFIRM))
2091 status = STATE_RUN_FAILED;
2092 }
2093 break;
2094
2095 case CONNECTION_STATE_MCS_ATTACH_USER_CONFIRM:
2096 if (!mcs_recv_attach_user_confirm(rdp->mcs, s))
2097 {
2098 WLog_Print(rdp->log, WLOG_ERROR, "mcs_recv_attach_user_confirm failure");
2099 status = STATE_RUN_FAILED;
2100 }
2101 else if (!freerdp_settings_get_bool(rdp->settings, FreeRDP_SupportSkipChannelJoin))
2102 {
2103 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_MCS_CHANNEL_JOIN_REQUEST))
2104 status = STATE_RUN_FAILED;
2105 else if (!mcs_send_channel_join_request(rdp->mcs, rdp->mcs->userId))
2106 {
2107 WLog_Print(rdp->log, WLOG_ERROR, "mcs_send_channel_join_request failure");
2108 status = STATE_RUN_FAILED;
2109 }
2110 else if (!rdp_client_transition_to_state(
2111 rdp, CONNECTION_STATE_MCS_CHANNEL_JOIN_RESPONSE))
2112 status = STATE_RUN_FAILED;
2113 }
2114 else
2115 {
2116 /* SKIP_CHANNELJOIN is active, consider channels to be joined */
2117 if (!rdp_client_skip_mcs_channel_join(rdp))
2118 status = STATE_RUN_FAILED;
2119 }
2120 break;
2121
2122 case CONNECTION_STATE_MCS_CHANNEL_JOIN_RESPONSE:
2123 if (!rdp_client_connect_mcs_channel_join_confirm(rdp, s))
2124 {
2125 WLog_Print(rdp->log, WLOG_ERROR,
2126 "%s - "
2127 "rdp_client_connect_mcs_channel_join_confirm() fail",
2128 rdp_get_state_string(rdp));
2129 status = STATE_RUN_FAILED;
2130 }
2131
2132 break;
2133
2134 case CONNECTION_STATE_CONNECT_TIME_AUTO_DETECT_REQUEST:
2135 if (!rdp_client_connect_auto_detect(rdp, s, WLOG_DEBUG))
2136 {
2137 if (!rdp_client_transition_to_state(rdp, CONNECTION_STATE_LICENSING))
2138 status = STATE_RUN_FAILED;
2139 else
2140 status = STATE_RUN_TRY_AGAIN;
2141 }
2142 break;
2143
2144 case CONNECTION_STATE_LICENSING:
2145 status = rdp_client_connect_license(rdp, s);
2146
2147 if (state_run_failed(status))
2148 {
2149 char buffer[64] = WINPR_C_ARRAY_INIT;
2150 WLog_Print(rdp->log, WLOG_DEBUG, "%s - rdp_client_connect_license() - %s",
2151 rdp_get_state_string(rdp),
2152 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2153 }
2154
2155 break;
2156
2157 case CONNECTION_STATE_MULTITRANSPORT_BOOTSTRAPPING_REQUEST:
2158 if (!rdp_client_connect_auto_detect(rdp, s, WLOG_DEBUG))
2159 {
2160 if (!rdp_client_transition_to_state(
2161 rdp, CONNECTION_STATE_CAPABILITIES_EXCHANGE_DEMAND_ACTIVE))
2162 status = STATE_RUN_FAILED;
2163 else
2164 status = STATE_RUN_TRY_AGAIN;
2165 }
2166 break;
2167
2168 case CONNECTION_STATE_CAPABILITIES_EXCHANGE_DEMAND_ACTIVE:
2169 status = rdp_client_connect_demand_active(rdp, s);
2170
2171 if (state_run_failed(status))
2172 {
2173 char buffer[64] = WINPR_C_ARRAY_INIT;
2174 WLog_Print(rdp->log, WLOG_DEBUG,
2175 "%s - "
2176 "rdp_client_connect_demand_active() - %s",
2177 rdp_get_state_string(rdp),
2178 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2179 }
2180 else if (status == STATE_RUN_ACTIVE)
2181 {
2182 if (!rdp_client_transition_to_state(
2183 rdp, CONNECTION_STATE_CAPABILITIES_EXCHANGE_CONFIRM_ACTIVE))
2184 status = STATE_RUN_FAILED;
2185 else
2186 status = STATE_RUN_CONTINUE;
2187 }
2188 break;
2189
2190 case CONNECTION_STATE_CAPABILITIES_EXCHANGE_MONITOR_LAYOUT:
2191 status = rdp_client_exchange_monitor_layout(rdp, s);
2192 break;
2193
2194 case CONNECTION_STATE_CAPABILITIES_EXCHANGE_CONFIRM_ACTIVE:
2195 status = rdp_client_connect_confirm_active(rdp, s);
2196 break;
2197
2198 case CONNECTION_STATE_FINALIZATION_CLIENT_SYNC:
2199 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_SYNCHRONIZE_PDU,
2200 CONNECTION_STATE_FINALIZATION_CLIENT_COOPERATE);
2201 break;
2202 case CONNECTION_STATE_FINALIZATION_CLIENT_COOPERATE:
2203 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_CONTROL_COOPERATE_PDU,
2204 CONNECTION_STATE_FINALIZATION_CLIENT_GRANTED_CONTROL);
2205 break;
2206 case CONNECTION_STATE_FINALIZATION_CLIENT_GRANTED_CONTROL:
2207 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_CONTROL_GRANTED_PDU,
2208 CONNECTION_STATE_FINALIZATION_CLIENT_FONT_MAP);
2209 break;
2210 case CONNECTION_STATE_FINALIZATION_CLIENT_FONT_MAP:
2211 status = rdp_handle_sc_flags(rdp, s, FINALIZE_SC_FONT_MAP_PDU, CONNECTION_STATE_ACTIVE);
2212 break;
2213
2214 case CONNECTION_STATE_ACTIVE:
2215 status = rdp_recv_pdu(rdp, s);
2216
2217 if (state_run_failed(status))
2218 {
2219 char buffer[64] = WINPR_C_ARRAY_INIT;
2220 WLog_Print(rdp->log, WLOG_DEBUG, "%s - rdp_recv_pdu() - %s",
2221 rdp_get_state_string(rdp),
2222 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2223 }
2224 break;
2225
2226 default:
2227 WLog_Print(rdp->log, WLOG_ERROR, "%s state %u", rdp_get_state_string(rdp),
2228 rdp_get_state(rdp));
2229 status = STATE_RUN_FAILED;
2230 break;
2231 }
2232
2233 if (state_run_failed(status))
2234 {
2235 char buffer[64] = WINPR_C_ARRAY_INIT;
2236 WLog_Print(rdp->log, WLOG_ERROR, "%s status %s", rdp_get_state_string(rdp),
2237 state_run_result_string(status, buffer, ARRAYSIZE(buffer)));
2238 }
2239 return status;
2240}
2241
2242state_run_t rdp_recv_callback(rdpTransport* transport, wStream* s, void* extra)
2243{
2244 char buffer[64] = WINPR_C_ARRAY_INIT;
2245 state_run_t rc = STATE_RUN_FAILED;
2246 const size_t start = Stream_GetPosition(s);
2247 const rdpContext* context = transport_get_context(transport);
2248
2249 WINPR_ASSERT(context);
2250 do
2251 {
2252 const rdpRdp* rdp = context->rdp;
2253 WINPR_ASSERT(rdp);
2254
2255 if (rc == STATE_RUN_TRY_AGAIN)
2256 {
2257 if (!Stream_SetPosition(s, start))
2258 return STATE_RUN_FAILED;
2259 }
2260
2261 const char* old = rdp_get_state_string(rdp);
2262 const size_t orem = Stream_GetRemainingLength(s);
2263 rc = rdp_recv_callback_int(transport, s, extra);
2264
2265 const char* now = rdp_get_state_string(rdp);
2266 const size_t rem = Stream_GetRemainingLength(s);
2267
2268 WLog_Print(rdp->log, WLOG_TRACE,
2269 "(client)[%s -> %s] current return %s [feeding %" PRIuz " bytes, %" PRIuz
2270 " bytes not processed]",
2271 old, now, state_run_result_string(rc, buffer, sizeof(buffer)), orem, rem);
2272 } while ((rc == STATE_RUN_TRY_AGAIN) || (rc == STATE_RUN_CONTINUE));
2273 return rc;
2274}
2275
2276BOOL rdp_send_channel_data(rdpRdp* rdp, UINT16 channelId, const BYTE* data, size_t size)
2277{
2278 return freerdp_channel_send(rdp, channelId, data, size);
2279}
2280
2281BOOL rdp_channel_send_packet(rdpRdp* rdp, UINT16 channelId, size_t totalSize, UINT32 flags,
2282 const BYTE* data, size_t chunkSize)
2283{
2284 return freerdp_channel_send_packet(rdp, channelId, totalSize, flags, data, chunkSize);
2285}
2286
2287BOOL rdp_send_error_info(rdpRdp* rdp)
2288{
2289 UINT16 sec_flags = 0;
2290 wStream* s = nullptr;
2291 BOOL status = 0;
2292
2293 if (rdp->errorInfo == ERRINFO_SUCCESS)
2294 return TRUE;
2295
2296 s = rdp_data_pdu_init(rdp, &sec_flags);
2297
2298 if (!s)
2299 return FALSE;
2300
2301 Stream_Write_UINT32(s, rdp->errorInfo); /* error id (4 bytes) */
2302 status = rdp_send_data_pdu(rdp, s, DATA_PDU_TYPE_SET_ERROR_INFO, 0, sec_flags);
2303 return status;
2304}
2305
2306int rdp_check_fds(rdpRdp* rdp)
2307{
2308 int status = 0;
2309 rdpTsg* tsg = nullptr;
2310 rdpTransport* transport = nullptr;
2311
2312 WINPR_ASSERT(rdp);
2313 transport = rdp->transport;
2314
2315 tsg = transport_get_tsg(transport);
2316 if (tsg)
2317 {
2318 if (!tsg_check_event_handles(tsg))
2319 {
2320 WLog_Print(rdp->log, WLOG_ERROR, "rdp_check_fds: tsg_check_event_handles()");
2321 return -1;
2322 }
2323
2324 if (tsg_get_state(tsg) != TSG_STATE_PIPE_CREATED)
2325 return 1;
2326 }
2327
2328 status = transport_check_fds(transport);
2329
2330 if (status == 1)
2331 {
2332 if (!rdp_client_redirect(rdp)) /* session redirection */
2333 return -1;
2334 }
2335
2336 if (status < 0)
2337 WLog_Print(rdp->log, WLOG_DEBUG, "transport_check_fds() - %i", status);
2338 else
2339 status = freerdp_timer_poll(rdp->timer);
2340
2341 return status;
2342}
2343
2344BOOL freerdp_get_stats(const rdpRdp* rdp, UINT64* inBytes, UINT64* outBytes, UINT64* inPackets,
2345 UINT64* outPackets)
2346{
2347 if (!rdp)
2348 return FALSE;
2349
2350 if (inBytes)
2351 *inBytes = rdp->inBytes;
2352 if (outBytes)
2353 *outBytes = rdp->outBytes;
2354 if (inPackets)
2355 *inPackets = rdp->inPackets;
2356 if (outPackets)
2357 *outPackets = rdp->outPackets;
2358
2359 return TRUE;
2360}
2361
2362WINPR_ATTR_NODISCARD
2363static bool rdp_new_common(rdpRdp* rdp)
2364{
2365 WINPR_ASSERT(rdp);
2366
2367 bool rc = false;
2368 rdp->transport = transport_new(rdp->context);
2369 if (!rdp->transport)
2370 goto fail;
2371
2372 if (rdp->io)
2373 {
2374 if (!transport_set_io_callbacks(rdp->transport, rdp->io))
2375 goto fail;
2376 }
2377
2378 rdp->aad = aad_new(rdp->context);
2379 if (!rdp->aad)
2380 goto fail;
2381
2382 rdp->nego = nego_new(rdp->transport);
2383 if (!rdp->nego)
2384 goto fail;
2385
2386 rdp->mcs = mcs_new(rdp->context);
2387 if (!rdp->mcs)
2388 goto fail;
2389
2390 rdp->license = license_new(rdp);
2391 if (!rdp->license)
2392 goto fail;
2393
2394 rdp->fastpath = fastpath_new(rdp);
2395 if (!rdp->fastpath)
2396 goto fail;
2397
2398 rc = true;
2399fail:
2400 return rc;
2401}
2402
2408rdpRdp* rdp_new(rdpContext* context)
2409{
2410 DWORD flags = 0;
2411 rdpRdp* rdp = (rdpRdp*)calloc(1, sizeof(rdpRdp));
2412
2413 if (!rdp)
2414 return nullptr;
2415
2416 rdp->log = WLog_Create(RDP_TAG, WLog_GetRoot());
2417 if (!rdp->log)
2418 goto fail;
2419
2420 (void)_snprintf(rdp->log_context, sizeof(rdp->log_context), "%p", (void*)context);
2421 if (!WLog_SetContext(rdp->log, nullptr, rdp->log_context))
2422 goto fail;
2423
2424 InitializeCriticalSection(&rdp->critical);
2425 rdp->context = context;
2426 WINPR_ASSERT(rdp->context);
2427
2428 if (context->ServerMode)
2429 flags |= FREERDP_SETTINGS_SERVER_MODE;
2430
2431 if (!context->settings)
2432 {
2433 context->settings = rdp->settings = freerdp_settings_new(flags);
2434
2435 if (!rdp->settings)
2436 goto fail;
2437 }
2438 else
2439 rdp->settings = context->settings;
2440
2441 /* Keep a backup copy of settings for later comparisons */
2442 if (!rdp_set_backup_settings(rdp))
2443 goto fail;
2444
2445 rdp->settings->instance = context->instance;
2446
2447 context->settings = rdp->settings;
2448 if (context->instance)
2449 context->settings->instance = context->instance;
2450 else if (context->peer)
2451 {
2452 rdp->settings->instance = context->peer;
2453
2454#if defined(WITH_FREERDP_DEPRECATED)
2455 context->peer->settings = rdp->settings;
2456#endif
2457 }
2458
2459 if (!rdp_new_common(rdp))
2460 goto fail;
2461
2462 {
2463 const rdpTransportIo* io = transport_get_io_callbacks(rdp->transport);
2464 if (!io)
2465 goto fail;
2466 rdp->io = calloc(1, sizeof(rdpTransportIo));
2467 if (!rdp->io)
2468 goto fail;
2469 *rdp->io = *io;
2470 }
2471
2472 rdp->input = input_new(rdp);
2473
2474 if (!rdp->input)
2475 goto fail;
2476
2477 rdp->update = update_new(rdp);
2478
2479 if (!rdp->update)
2480 goto fail;
2481
2482 rdp->redirection = redirection_new();
2483
2484 if (!rdp->redirection)
2485 goto fail;
2486
2487 rdp->autodetect = autodetect_new(rdp->context);
2488
2489 if (!rdp->autodetect)
2490 goto fail;
2491
2492 rdp->heartbeat = heartbeat_new();
2493
2494 if (!rdp->heartbeat)
2495 goto fail;
2496
2497 rdp->multitransport = multitransport_new(rdp, INITIATE_REQUEST_PROTOCOL_UDPFECL |
2498 INITIATE_REQUEST_PROTOCOL_UDPFECR);
2499
2500 if (!rdp->multitransport)
2501 goto fail;
2502
2503 rdp->bulk = bulk_new(context);
2504
2505 if (!rdp->bulk)
2506 goto fail;
2507
2508 rdp->pubSub = PubSub_New(TRUE);
2509 if (!rdp->pubSub)
2510 goto fail;
2511
2512 rdp->abortEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
2513 if (!rdp->abortEvent)
2514 goto fail;
2515
2516 rdp->timer = freerdp_timer_new(rdp);
2517 if (!rdp->timer)
2518 goto fail;
2519
2520 return rdp;
2521
2522fail:
2523 WINPR_PRAGMA_DIAG_PUSH
2524 WINPR_PRAGMA_DIAG_IGNORED_MISMATCHED_DEALLOC
2525 rdp_free(rdp);
2526 WINPR_PRAGMA_DIAG_POP
2527 return nullptr;
2528}
2529
2530static void rdp_reset_free(rdpRdp* rdp)
2531{
2532 WINPR_ASSERT(rdp);
2533
2534 security_lock(rdp);
2535 rdp_free_rc4_decrypt_keys(rdp);
2536 rdp_free_rc4_encrypt_keys(rdp);
2537
2538 winpr_Cipher_Free(rdp->fips_encrypt);
2539 winpr_Cipher_Free(rdp->fips_decrypt);
2540 rdp->fips_encrypt = nullptr;
2541 rdp->fips_decrypt = nullptr;
2542 security_unlock(rdp);
2543
2544 aad_free(rdp->aad);
2545 mcs_free(rdp->mcs);
2546 nego_free(rdp->nego);
2547 license_free(rdp->license);
2548 transport_free(rdp->transport);
2549 fastpath_free(rdp->fastpath);
2550
2551 rdp->aad = nullptr;
2552 rdp->mcs = nullptr;
2553 rdp->nego = nullptr;
2554 rdp->license = nullptr;
2555 rdp->transport = nullptr;
2556 rdp->fastpath = nullptr;
2557}
2558
2559BOOL rdp_reset(rdpRdp* rdp)
2560{
2561 BOOL rc = TRUE;
2562
2563 WINPR_ASSERT(rdp);
2564
2565 rdpSettings* settings = rdp->settings;
2566 WINPR_ASSERT(settings);
2567
2568 bulk_reset(rdp->bulk);
2569
2570 rdp_reset_free(rdp);
2571
2572 if (!freerdp_settings_set_pointer_len(settings, FreeRDP_ServerRandom, nullptr, 0))
2573 rc = FALSE;
2574
2575 if (!freerdp_settings_set_pointer_len(settings, FreeRDP_ServerCertificate, nullptr, 0))
2576 rc = FALSE;
2577
2578 if (!freerdp_settings_set_string(settings, FreeRDP_ClientAddress, nullptr))
2579 rc = FALSE;
2580
2581 if (!rc)
2582 goto fail;
2583
2584 rc = rdp_new_common(rdp);
2585 if (!rc)
2586 goto fail;
2587
2588 if (!transport_set_layer(rdp->transport, TRANSPORT_LAYER_TCP))
2589 goto fail;
2590
2591 rdp->errorInfo = 0;
2592 rc = rdp_finalize_reset_flags(rdp, TRUE);
2593
2594fail:
2595 return rc;
2596}
2597
2603void rdp_free(rdpRdp* rdp)
2604{
2605 if (rdp)
2606 {
2607 freerdp_timer_free(rdp->timer);
2608 rdp_reset_free(rdp);
2609
2610 freerdp_settings_free(rdp->settings);
2611 freerdp_settings_free(rdp->originalSettings);
2612 freerdp_settings_free(rdp->remoteSettings);
2613
2614 input_free(rdp->input);
2615 update_free(rdp->update);
2616 nla_free(rdp->nla);
2617 redirection_free(rdp->redirection);
2618 autodetect_free(rdp->autodetect);
2619 heartbeat_free(rdp->heartbeat);
2620 multitransport_free(rdp->multitransport);
2621 bulk_free(rdp->bulk);
2622 free(rdp->io);
2623 PubSub_Free(rdp->pubSub);
2624 if (rdp->abortEvent)
2625 (void)CloseHandle(rdp->abortEvent);
2626 aad_free(rdp->aad);
2627 WINPR_JSON_Delete(rdp->wellknown);
2628 DeleteCriticalSection(&rdp->critical);
2629 WLog_Discard(rdp->log);
2630 free(rdp);
2631 }
2632}
2633
2634BOOL rdp_io_callback_set_event(rdpRdp* rdp, BOOL set)
2635{
2636 if (!rdp)
2637 return FALSE;
2638 return transport_io_callback_set_event(rdp->transport, set);
2639}
2640
2641const rdpTransportIo* rdp_get_io_callbacks(rdpRdp* rdp)
2642{
2643 if (!rdp)
2644 return nullptr;
2645 return rdp->io;
2646}
2647
2648BOOL rdp_set_io_callbacks(rdpRdp* rdp, const rdpTransportIo* io_callbacks)
2649{
2650 if (!rdp)
2651 return FALSE;
2652 free(rdp->io);
2653 rdp->io = nullptr;
2654 if (io_callbacks)
2655 {
2656 rdp->io = malloc(sizeof(rdpTransportIo));
2657 if (!rdp->io)
2658 return FALSE;
2659 *rdp->io = *io_callbacks;
2660 return transport_set_io_callbacks(rdp->transport, rdp->io);
2661 }
2662 return TRUE;
2663}
2664
2665BOOL rdp_set_io_callback_context(rdpRdp* rdp, void* usercontext)
2666{
2667 WINPR_ASSERT(rdp);
2668 rdp->ioContext = usercontext;
2669 return TRUE;
2670}
2671
2672void* rdp_get_io_callback_context(rdpRdp* rdp)
2673{
2674 WINPR_ASSERT(rdp);
2675 return rdp->ioContext;
2676}
2677
2678const char* rdp_finalize_flags_to_str(UINT32 flags, char* buffer, size_t size)
2679{
2680 char number[32] = WINPR_C_ARRAY_INIT;
2681 const UINT32 mask =
2682 (uint32_t)~(FINALIZE_SC_SYNCHRONIZE_PDU | FINALIZE_SC_CONTROL_COOPERATE_PDU |
2683 FINALIZE_SC_CONTROL_GRANTED_PDU | FINALIZE_SC_FONT_MAP_PDU |
2684 FINALIZE_CS_SYNCHRONIZE_PDU | FINALIZE_CS_CONTROL_COOPERATE_PDU |
2685 FINALIZE_CS_CONTROL_REQUEST_PDU | FINALIZE_CS_PERSISTENT_KEY_LIST_PDU |
2686 FINALIZE_CS_FONT_LIST_PDU | FINALIZE_DEACTIVATE_REACTIVATE);
2687
2688 if (flags & FINALIZE_SC_SYNCHRONIZE_PDU)
2689 winpr_str_append("FINALIZE_SC_SYNCHRONIZE_PDU", buffer, size, "|");
2690 if (flags & FINALIZE_SC_CONTROL_COOPERATE_PDU)
2691 winpr_str_append("FINALIZE_SC_CONTROL_COOPERATE_PDU", buffer, size, "|");
2692 if (flags & FINALIZE_SC_CONTROL_GRANTED_PDU)
2693 winpr_str_append("FINALIZE_SC_CONTROL_GRANTED_PDU", buffer, size, "|");
2694 if (flags & FINALIZE_SC_FONT_MAP_PDU)
2695 winpr_str_append("FINALIZE_SC_FONT_MAP_PDU", buffer, size, "|");
2696 if (flags & FINALIZE_CS_SYNCHRONIZE_PDU)
2697 winpr_str_append("FINALIZE_CS_SYNCHRONIZE_PDU", buffer, size, "|");
2698 if (flags & FINALIZE_CS_CONTROL_COOPERATE_PDU)
2699 winpr_str_append("FINALIZE_CS_CONTROL_COOPERATE_PDU", buffer, size, "|");
2700 if (flags & FINALIZE_CS_CONTROL_REQUEST_PDU)
2701 winpr_str_append("FINALIZE_CS_CONTROL_REQUEST_PDU", buffer, size, "|");
2702 if (flags & FINALIZE_CS_PERSISTENT_KEY_LIST_PDU)
2703 winpr_str_append("FINALIZE_CS_PERSISTENT_KEY_LIST_PDU", buffer, size, "|");
2704 if (flags & FINALIZE_CS_FONT_LIST_PDU)
2705 winpr_str_append("FINALIZE_CS_FONT_LIST_PDU", buffer, size, "|");
2706 if (flags & FINALIZE_DEACTIVATE_REACTIVATE)
2707 winpr_str_append("FINALIZE_DEACTIVATE_REACTIVATE", buffer, size, "|");
2708 if (flags & mask)
2709 winpr_str_append("UNKNOWN_FLAG", buffer, size, "|");
2710 if (flags == 0)
2711 winpr_str_append("NO_FLAG_SET", buffer, size, "|");
2712 (void)_snprintf(number, sizeof(number), " [0x%08" PRIx32 "]", flags);
2713 winpr_str_append(number, buffer, size, "");
2714 return buffer;
2715}
2716
2717BOOL rdp_finalize_reset_flags(rdpRdp* rdp, BOOL clearAll)
2718{
2719 WINPR_ASSERT(rdp);
2720 WLog_Print(rdp->log, WLOG_DEBUG, "[%s] reset finalize_sc_pdus", rdp_get_state_string(rdp));
2721 if (clearAll)
2722 rdp->finalize_sc_pdus = 0;
2723 else
2724 rdp->finalize_sc_pdus &= FINALIZE_DEACTIVATE_REACTIVATE;
2725
2726 return rdp_set_monitor_layout_pdu_state(rdp, FALSE);
2727}
2728
2729BOOL rdp_finalize_set_flag(rdpRdp* rdp, UINT32 flag)
2730{
2731 char buffer[1024] = WINPR_C_ARRAY_INIT;
2732
2733 WINPR_ASSERT(rdp);
2734
2735 WLog_Print(rdp->log, WLOG_DEBUG, "[%s] received flag %s", rdp_get_state_string(rdp),
2736 rdp_finalize_flags_to_str(flag, buffer, sizeof(buffer)));
2737 rdp->finalize_sc_pdus |= flag;
2738 return TRUE;
2739}
2740
2741BOOL rdp_finalize_is_flag_set(rdpRdp* rdp, UINT32 flag)
2742{
2743 WINPR_ASSERT(rdp);
2744 return (rdp->finalize_sc_pdus & flag) == flag;
2745}
2746
2747BOOL rdp_reset_rc4_encrypt_keys(rdpRdp* rdp)
2748{
2749 WINPR_ASSERT(rdp);
2750 rdp_free_rc4_encrypt_keys(rdp);
2751 rdp->rc4_encrypt_key = winpr_RC4_New(rdp->encrypt_key, rdp->rc4_key_len);
2752
2753 rdp->encrypt_use_count = 0;
2754 return rdp->rc4_encrypt_key != nullptr;
2755}
2756
2757void rdp_free_rc4_encrypt_keys(rdpRdp* rdp)
2758{
2759 WINPR_ASSERT(rdp);
2760 winpr_RC4_Free(rdp->rc4_encrypt_key);
2761 rdp->rc4_encrypt_key = nullptr;
2762}
2763
2764void rdp_free_rc4_decrypt_keys(rdpRdp* rdp)
2765{
2766 WINPR_ASSERT(rdp);
2767 winpr_RC4_Free(rdp->rc4_decrypt_key);
2768 rdp->rc4_decrypt_key = nullptr;
2769}
2770
2771BOOL rdp_reset_rc4_decrypt_keys(rdpRdp* rdp)
2772{
2773 WINPR_ASSERT(rdp);
2774 rdp_free_rc4_decrypt_keys(rdp);
2775 rdp->rc4_decrypt_key = winpr_RC4_New(rdp->decrypt_key, rdp->rc4_key_len);
2776
2777 rdp->decrypt_use_count = 0;
2778 return rdp->rc4_decrypt_key != nullptr;
2779}
2780
2781const char* rdp_security_flag_string(UINT32 securityFlags, char* buffer, size_t size)
2782{
2783 if (securityFlags & SEC_EXCHANGE_PKT)
2784 winpr_str_append("SEC_EXCHANGE_PKT", buffer, size, "|");
2785 if (securityFlags & SEC_TRANSPORT_REQ)
2786 winpr_str_append("SEC_TRANSPORT_REQ", buffer, size, "|");
2787 if (securityFlags & SEC_TRANSPORT_RSP)
2788 winpr_str_append("SEC_TRANSPORT_RSP", buffer, size, "|");
2789 if (securityFlags & SEC_ENCRYPT)
2790 winpr_str_append("SEC_ENCRYPT", buffer, size, "|");
2791 if (securityFlags & SEC_RESET_SEQNO)
2792 winpr_str_append("SEC_RESET_SEQNO", buffer, size, "|");
2793 if (securityFlags & SEC_IGNORE_SEQNO)
2794 winpr_str_append("SEC_IGNORE_SEQNO", buffer, size, "|");
2795 if (securityFlags & SEC_INFO_PKT)
2796 winpr_str_append("SEC_INFO_PKT", buffer, size, "|");
2797 if (securityFlags & SEC_LICENSE_PKT)
2798 winpr_str_append("SEC_LICENSE_PKT", buffer, size, "|");
2799 if (securityFlags & SEC_LICENSE_ENCRYPT_CS)
2800 winpr_str_append("SEC_LICENSE_ENCRYPT_CS", buffer, size, "|");
2801 if (securityFlags & SEC_LICENSE_ENCRYPT_SC)
2802 winpr_str_append("SEC_LICENSE_ENCRYPT_SC", buffer, size, "|");
2803 if (securityFlags & SEC_REDIRECTION_PKT)
2804 winpr_str_append("SEC_REDIRECTION_PKT", buffer, size, "|");
2805 if (securityFlags & SEC_SECURE_CHECKSUM)
2806 winpr_str_append("SEC_SECURE_CHECKSUM", buffer, size, "|");
2807 if (securityFlags & SEC_AUTODETECT_REQ)
2808 winpr_str_append("SEC_AUTODETECT_REQ", buffer, size, "|");
2809 if (securityFlags & SEC_AUTODETECT_RSP)
2810 winpr_str_append("SEC_AUTODETECT_RSP", buffer, size, "|");
2811 if (securityFlags & SEC_HEARTBEAT)
2812 winpr_str_append("SEC_HEARTBEAT", buffer, size, "|");
2813 if (securityFlags & SEC_FLAGSHI_VALID)
2814 winpr_str_append("SEC_FLAGSHI_VALID", buffer, size, "|");
2815 {
2816 char msg[32] = WINPR_C_ARRAY_INIT;
2817
2818 (void)_snprintf(msg, sizeof(msg), "[0x%08" PRIx32 "]", securityFlags);
2819 winpr_str_append(msg, buffer, size, "");
2820 }
2821 return buffer;
2822}
2823
2824WINPR_ATTR_NODISCARD
2825static BOOL rdp_reset_remote_settings(rdpRdp* rdp)
2826{
2827 UINT32 flags = FREERDP_SETTINGS_REMOTE_MODE;
2828 WINPR_ASSERT(rdp);
2829 freerdp_settings_free(rdp->remoteSettings);
2830
2831 if (!freerdp_settings_get_bool(rdp->settings, FreeRDP_ServerMode))
2832 flags |= FREERDP_SETTINGS_SERVER_MODE;
2833 rdp->remoteSettings = freerdp_settings_new(flags);
2834 return rdp->remoteSettings != nullptr;
2835}
2836
2837BOOL rdp_set_backup_settings(rdpRdp* rdp)
2838{
2839 WINPR_ASSERT(rdp);
2840 freerdp_settings_free(rdp->originalSettings);
2841 rdp->originalSettings = freerdp_settings_clone(rdp->settings);
2842 if (!rdp->originalSettings)
2843 return FALSE;
2844 return rdp_reset_remote_settings(rdp);
2845}
2846
2847BOOL rdp_reset_runtime_settings(rdpRdp* rdp)
2848{
2849 WINPR_ASSERT(rdp);
2850 WINPR_ASSERT(rdp->context);
2851
2852 freerdp_settings_free(rdp->settings);
2853 rdp->context->settings = rdp->settings = freerdp_settings_clone(rdp->originalSettings);
2854
2855 if (!rdp->settings)
2856 return FALSE;
2857 return rdp_reset_remote_settings(rdp);
2858}
2859
2860WINPR_ATTR_NODISCARD
2861static BOOL starts_with(const char* tok, const char* val)
2862{
2863 const size_t len = strlen(val);
2864 if (strncmp(tok, val, len) != 0)
2865 return FALSE;
2866 if (tok[len] != '=')
2867 return FALSE;
2868 return TRUE;
2869}
2870
2871WINPR_ATTR_NODISCARD
2872static BOOL option_equals(const char* what, const char* val)
2873{
2874 return _stricmp(what, val) == 0;
2875}
2876
2877WINPR_ATTR_NODISCARD
2878static BOOL parse_on_off_option(const char* value)
2879{
2880 WINPR_ASSERT(value);
2881 const char* sep = strchr(value, '=');
2882 if (!sep)
2883 return TRUE;
2884 if (option_equals("on", &sep[1]))
2885 return TRUE;
2886 if (option_equals("true", &sep[1]))
2887 return TRUE;
2888 if (option_equals("off", &sep[1]))
2889 return FALSE;
2890 if (option_equals("false", &sep[1]))
2891 return FALSE;
2892
2893 errno = 0;
2894 long val = strtol(value, nullptr, 0);
2895 if (errno == 0)
2896 return (val != 0);
2897
2898 return FALSE;
2899}
2900
2901#define STR(x) #x
2902
2903WINPR_ATTR_NODISCARD
2904static BOOL option_is_runtime_checks(WINPR_ATTR_UNUSED wLog* log, WINPR_ATTR_UNUSED DWORD level,
2905 const char* tok)
2906{
2907 const char* experimental[] = { STR(WITH_VERBOSE_WINPR_ASSERT) };
2908 for (size_t x = 0; x < ARRAYSIZE(experimental); x++)
2909 {
2910 const char* opt = experimental[x];
2911 if (starts_with(tok, opt))
2912 {
2913 return parse_on_off_option(tok);
2914 }
2915 }
2916 return FALSE;
2917}
2918
2919WINPR_ATTR_NODISCARD
2920static BOOL option_is_experimental(WINPR_ATTR_UNUSED wLog* log, WINPR_ATTR_UNUSED DWORD level,
2921 const char* tok)
2922{
2923 const char* experimental[] = { STR(WITH_DSP_EXPERIMENTAL), STR(WITH_FFMPEG_HWACCEL),
2924 STR(WITH_GFX_AV1), STR(WITH_MEDIACODEC),
2925 STR(WITH_CLIENT_SDL2), STR(WITH_OPENCL),
2926 STR(WITH_LIBRESSL), STR(WITH_MBEDTLS),
2927 STR(WITH_MEDIA_FOUNDATION), STR(WITH_KRB5_HEIMDAL) };
2928 for (size_t x = 0; x < ARRAYSIZE(experimental); x++)
2929 {
2930 const char* opt = experimental[x];
2931 if (starts_with(tok, opt))
2932 {
2933 return parse_on_off_option(tok);
2934 }
2935 }
2936 return FALSE;
2937}
2938
2939WINPR_ATTR_NODISCARD
2940static BOOL option_is_debug(wLog* log, WINPR_ATTR_UNUSED DWORD level, const char* tok)
2941{
2942 WINPR_ASSERT(log);
2943 const char* debug[] = { STR(WITH_DEBUG_ALL),
2944 STR(WITH_DEBUG_CERTIFICATE),
2945 STR(WITH_DEBUG_CAPABILITIES),
2946 STR(WITH_DEBUG_CHANNELS),
2947 STR(WITH_DEBUG_CLIPRDR),
2948 STR(WITH_DEBUG_CODECS),
2949 STR(WITH_DEBUG_DVC),
2950 STR(WITH_DEBUG_TSMF),
2951 STR(WITH_DEBUG_KBD),
2952 STR(WITH_DEBUG_LICENSE),
2953 STR(WITH_DEBUG_NEGO),
2954 STR(WITH_DEBUG_NLA),
2955 STR(WITH_DEBUG_TSG),
2956 STR(WITH_DEBUG_RAIL),
2957 STR(WITH_DEBUG_RDP),
2958 STR(WITH_DEBUG_RDPEI),
2959 STR(WITH_DEBUG_REDIR),
2960 STR(WITH_DEBUG_RDPDR),
2961 STR(WITH_DEBUG_RFX),
2962 STR(WITH_DEBUG_SCARD),
2963 STR(WITH_DEBUG_SND),
2964 STR(WITH_DEBUG_SVC),
2965 STR(WITH_DEBUG_TRANSPORT),
2966 STR(WITH_DEBUG_TIMEZONE),
2967 STR(WITH_DEBUG_WND),
2968 STR(WITH_DEBUG_RINGBUFFER),
2969 STR(WITH_DEBUG_SYMBOLS),
2970 STR(WITH_DEBUG_EVENTS),
2971 STR(WITH_DEBUG_MUTEX),
2972 STR(WITH_DEBUG_NTLM),
2973 STR(WITH_DEBUG_SDL_KBD_EVENTS),
2974 STR(WITH_DEBUG_SDL_KBD_EVENTS),
2975 STR(WITH_DEBUG_THREADS),
2976 STR(WITH_DEBUG_URBDRC) };
2977
2978 for (size_t x = 0; x < ARRAYSIZE(debug); x++)
2979 {
2980 const char* opt = debug[x];
2981 if (starts_with(tok, opt))
2982 return parse_on_off_option(tok);
2983 }
2984
2985 if (starts_with(tok, "WITH_DEBUG"))
2986 {
2987 WLog_Print(log, level, "[BUG] Unmapped Debug-Build option '%s'.", tok);
2988 return parse_on_off_option(tok);
2989 }
2990
2991 return FALSE;
2992}
2993
2994static void log_build_warn(wLog* log, DWORD level, const char* what, const char* msg,
2995 BOOL (*cmp)(wLog* log, DWORD level, const char* tok))
2996{
2997 WINPR_PRAGMA_DIAG_PUSH
2998 WINPR_PRAGMA_DIAG_IGNORED_OVERLENGTH_STRINGS
2999
3000 size_t len = sizeof(FREERDP_BUILD_CONFIG);
3001 char* list = calloc(len, sizeof(char));
3002 char* config = _strdup(FREERDP_BUILD_CONFIG);
3003 WINPR_PRAGMA_DIAG_POP
3004
3005 if (config && list)
3006 {
3007 char* saveptr = nullptr;
3008 char* tok = strtok_s(config, " ", &saveptr);
3009 while (tok)
3010 {
3011 if (cmp(log, level, tok))
3012 winpr_str_append(tok, list, len, " ");
3013
3014 tok = strtok_s(nullptr, " ", &saveptr);
3015 }
3016 }
3017 free(config);
3018
3019 if (list)
3020 {
3021 if (strlen(list) > 0)
3022 {
3023 WLog_Print(log, level, "*************************************************");
3024 WLog_Print(log, level, "This build is using [%s] build options:", what);
3025
3026 char* saveptr = nullptr;
3027 char* tok = strtok_s(list, " ", &saveptr);
3028 while (tok)
3029 {
3030 WLog_Print(log, level, "* '%s'", tok);
3031 tok = strtok_s(nullptr, " ", &saveptr);
3032 }
3033 WLog_Print(log, level, "*");
3034 WLog_Print(log, level, "[%s] build options %s", what, msg);
3035 WLog_Print(log, level, "*************************************************");
3036 }
3037 }
3038 free(list);
3039}
3040
3041#define print_first_line(log, level, firstLine, what) \
3042 print_first_line_int((log), (level), (firstLine), (what), __FILE__, __func__, __LINE__)
3043static void print_first_line_int(wLog* log, DWORD level, log_line_t* firstLine, const char* what,
3044 const char* file, const char* fkt, size_t line)
3045{
3046 WINPR_ASSERT(firstLine);
3047 if (!firstLine->fkt)
3048 {
3049 if (WLog_IsLevelActive(log, level))
3050 {
3051 WLog_PrintTextMessage(log, level, line, file, fkt,
3052 "*************************************************");
3053 WLog_PrintTextMessage(log, level, line, file, fkt,
3054 "[SSL] {%s} build or configuration missing:", what);
3055 }
3056 firstLine->line = line;
3057 firstLine->file = file;
3058 firstLine->fkt = fkt;
3059 firstLine->level = level;
3060 }
3061}
3062
3063static void print_last_line(wLog* log, const log_line_t* firstLine)
3064{
3065 WINPR_ASSERT(firstLine);
3066 if (firstLine->fkt)
3067 {
3068 if (WLog_IsLevelActive(log, firstLine->level))
3069 WLog_PrintTextMessage(log, firstLine->level, firstLine->line, firstLine->file,
3070 firstLine->fkt,
3071 "*************************************************");
3072 }
3073}
3074
3075static void log_build_warn_cipher(wLog* log, DWORD level, log_line_t* firstLine,
3076 WINPR_CIPHER_TYPE md, const char* what, BOOL allowFIPS)
3077{
3078 BOOL haveCipher = FALSE;
3079
3080 char key[WINPR_CIPHER_MAX_KEY_LENGTH] = WINPR_C_ARRAY_INIT;
3081 char iv[WINPR_CIPHER_MAX_IV_LENGTH] = WINPR_C_ARRAY_INIT;
3082
3083 /* RC4 only exists in the compatibility functions winpr_RC4_*
3084 * winpr_Cipher_* does not support that. */
3085 if (md == WINPR_CIPHER_ARC4_128)
3086 {
3087 WINPR_RC4_CTX* enc = nullptr;
3088 if (allowFIPS)
3089 enc = winpr_RC4_New_Allow_FIPS(key, sizeof(key));
3090 else
3091 enc = winpr_RC4_New(key, sizeof(key));
3092 haveCipher = enc != nullptr;
3093 winpr_RC4_Free(enc);
3094 }
3095 else
3096 {
3097 WINPR_CIPHER_CTX* enc =
3098 winpr_Cipher_NewEx(md, WINPR_ENCRYPT, key, sizeof(key), iv, sizeof(iv));
3099 WINPR_CIPHER_CTX* dec =
3100 winpr_Cipher_NewEx(md, WINPR_DECRYPT, key, sizeof(key), iv, sizeof(iv));
3101 if (enc && dec)
3102 haveCipher = TRUE;
3103
3104 winpr_Cipher_Free(enc);
3105 winpr_Cipher_Free(dec);
3106 }
3107
3108 if (!haveCipher)
3109 {
3110 print_first_line(log, level, firstLine, "Cipher");
3111 WLog_Print(log, level, "* %s: %s", winpr_cipher_type_to_string(md), what);
3112 }
3113}
3114
3115static void log_build_warn_hmac(wLog* log, DWORD level, log_line_t* firstLine, WINPR_MD_TYPE md,
3116 const char* what)
3117{
3118 BOOL haveHmacX = FALSE;
3119 WINPR_HMAC_CTX* hmac = winpr_HMAC_New();
3120 if (hmac)
3121 {
3122 /* We need some key length, but there is no real limit here.
3123 * just take the cipher maximum key length as we already have that available.
3124 */
3125 char key[WINPR_CIPHER_MAX_KEY_LENGTH] = WINPR_C_ARRAY_INIT;
3126 haveHmacX = winpr_HMAC_Init(hmac, md, key, sizeof(key));
3127 }
3128 winpr_HMAC_Free(hmac);
3129
3130 if (!haveHmacX)
3131 {
3132 print_first_line(log, level, firstLine, "HMAC");
3133 WLog_Print(log, level, " * %s: %s", winpr_md_type_to_string(md), what);
3134 }
3135}
3136
3137static void log_build_warn_hash(wLog* log, DWORD level, log_line_t* firstLine, WINPR_MD_TYPE md,
3138 const char* what, BOOL allowFIPS)
3139{
3140 BOOL haveDigestX = FALSE;
3141 WINPR_DIGEST_CTX* digest = winpr_Digest_New();
3142 if (digest)
3143 {
3144 if (allowFIPS)
3145 haveDigestX = winpr_Digest_Init_Allow_FIPS(digest, md);
3146 else
3147 haveDigestX = winpr_Digest_Init(digest, md);
3148 }
3149 winpr_Digest_Free(digest);
3150
3151 if (!haveDigestX)
3152 {
3153 print_first_line(log, level, firstLine, "Digest");
3154 WLog_Print(log, level, " * %s: %s", winpr_md_type_to_string(md), what);
3155 }
3156}
3157
3158static void log_build_warn_ssl(wLog* log, DWORD level)
3159{
3160 const BOOL fips = winpr_FIPSMode();
3161
3162 if (fips)
3163 {
3164 WLog_Print(log, WLOG_INFO,
3165 "FIPS mode active: non-approved algorithms are unavailable "
3166 "as expected. NTLM, autoreconnect cookies, assistance files "
3167 "with encrypted passwords and RDP security will not work.");
3168 }
3169
3170 log_line_t firstHashLine = WINPR_C_ARRAY_INIT;
3171 if (!fips)
3172 {
3173 log_build_warn_hash(log, level, &firstHashLine, WINPR_MD_MD4, "NTLM support not available",
3174 FALSE);
3175 log_build_warn_hash(log, level, &firstHashLine, WINPR_MD_MD5,
3176 "NTLM, assistance files with encrypted passwords "
3177 " and autoreconnect cookies will not work",
3178 FALSE);
3179 }
3180 log_build_warn_hash(log, level, &firstHashLine, WINPR_MD_MD5,
3181 "RDP licensing and RDP security will not work", TRUE);
3182 log_build_warn_hash(log, level, &firstHashLine, WINPR_MD_SHA1,
3183 "assistance files with encrypted passwords, Kerberos, Smartcard Logon, RDP "
3184 "security support not available",
3185 FALSE);
3186 log_build_warn_hash(log, level, &firstHashLine, WINPR_MD_SHA256,
3187 "file clipboard, AAD gateway, NLA security and certificates might not work",
3188 FALSE);
3189 print_last_line(log, &firstHashLine);
3190
3191 if (!fips)
3192 {
3193 log_line_t firstHmacLine = WINPR_C_ARRAY_INIT;
3194 log_build_warn_hmac(log, level, &firstHmacLine, WINPR_MD_MD5,
3195 "Autoreconnect cookie not supported");
3196 log_build_warn_hmac(log, level, &firstHmacLine, WINPR_MD_SHA1,
3197 "RDP security not supported");
3198 print_last_line(log, &firstHmacLine);
3199 }
3200
3201 log_line_t firstCipherLine = WINPR_C_ARRAY_INIT;
3202 if (!fips)
3203 {
3204 log_build_warn_cipher(log, level, &firstCipherLine, WINPR_CIPHER_ARC4_128,
3205 "assistance files with encrypted passwords, NTLM "
3206 "and autoreconnect cookies will not work",
3207 FALSE);
3208 }
3209 log_build_warn_cipher(log, level, &firstCipherLine, WINPR_CIPHER_ARC4_128,
3210 "RDP licensing and RDP security will not work", TRUE);
3211 if (!fips)
3212 log_build_warn_cipher(log, level, &firstCipherLine, WINPR_CIPHER_DES_EDE3_CBC,
3213 "RDP security will not work", TRUE);
3214 log_build_warn_cipher(
3215 log, level, &firstCipherLine, WINPR_CIPHER_AES_128_CBC,
3216 "assistance file encrypted LHTicket will not work and ARM gateway might not", FALSE);
3217 log_build_warn_cipher(log, level, &firstCipherLine, WINPR_CIPHER_AES_192_CBC,
3218 "ARM gateway might not work", FALSE);
3219 log_build_warn_cipher(log, level, &firstCipherLine, WINPR_CIPHER_AES_256_CBC,
3220 "ARM gateway might not work", FALSE);
3221 print_last_line(log, &firstCipherLine);
3222}
3223
3224static void rdp_log_build_warnings_wlog(wLog* log, DWORD level)
3225{
3226 static unsigned count = 0;
3227
3228 /* Since this function is called in context creation routines stop logging
3229 * this issue repeatedly. This is required for proxy, which would otherwise
3230 * spam the log with these. */
3231 if (count > 0)
3232 return;
3233 count++;
3234 log_build_warn(log, level, "experimental", "might crash the application",
3235 option_is_experimental);
3236 log_build_warn(log, level, "debug", "might leak sensitive information (credentials, ...)",
3237 option_is_debug);
3238 log_build_warn(log, level, "runtime-check", "might slow down the application",
3239 option_is_runtime_checks);
3240 log_build_warn_ssl(log, level);
3241 winpr_log_build_warn(log, level);
3242}
3243
3244void rdp_log_build_warnings(rdpRdp* rdp)
3245{
3246 WINPR_ASSERT(rdp);
3247 rdp_log_build_warnings_wlog(rdp->log, WLOG_WARN);
3248}
3249
3250size_t rdp_get_event_handles(rdpRdp* rdp, HANDLE* handles, uint32_t count)
3251{
3252 size_t nCount = transport_get_event_handles(rdp->transport, handles, count);
3253
3254 if (nCount == 0)
3255 return 0;
3256
3257 if (count < nCount + 2UL)
3258 return 0;
3259
3260 handles[nCount++] = utils_get_abort_event(rdp);
3261 handles[nCount++] = freerdp_timer_get_event(rdp->timer);
3262 return nCount;
3263}
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:815
freerdp_settings_clone
FREERDP_API rdpSettings * freerdp_settings_clone(const rdpSettings *settings)
Creates a deep copy of settings.
Definition core/settings.c:1647
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:1432
freerdp_settings_free
FREERDP_API void freerdp_settings_free(rdpSettings *settings)
Free a settings struct with all data in it.
Definition core/settings.c:1399
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:3796
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:428