summaryrefslogtreecommitdiff
path: root/testprogs/win32/midltests/midltests_tcp.c
blob: 3046f6debc6db97e6ef8252c202bd4ce584bc298 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
/*
   MIDLTESTS client.

   Copyright (C) Stefan Metzmacher 2008

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <winsock.h>
#include "midltests.h"

#ifndef _M_AMD64
#error "please run 'vcvarsall.bat amd64' -midltests_tcp needs 64-bit support!"
#endif

#define MIDLTESTS_C_CODE 1
#include "midltests.idl"

#ifndef LISTEN_IP
#define LISTEN_IP "127.0.0.1"
#endif

#ifndef FORWARD_IP
#define FORWARD_IP "127.0.0.1"
#endif

#ifndef CONNECT_IP
#define CONNECT_IP "127.0.0.1"
#endif

struct NDRTcpThreadCtx;

struct NDRProxyThreadCtx {
	const struct NDRTcpThreadCtx *ctx;
	SOCKET InSocket;
	SOCKET OutSocket;
	DWORD dwThreadId;
	HANDLE hThread;
};

struct NDRTcpThreadCtx {
	const char *name;
	short listen_port;
	short client_port;
	BOOL ndr64;
	BOOL stop;
};

struct dcerpc_header {
	BYTE rpc_vers;		/* RPC version */
	BYTE rpc_vers_minor;	/* Minor version */
	BYTE ptype;		/* Packet type */
	BYTE pfc_flags; 	/* Fragmentation flags */
	BYTE drep[4];		/* NDR data representation */
	short frag_length;	/* Total length of fragment */
	short auth_length;	/* authenticator length */
	DWORD call_id;		/* Call identifier */
};

static void dump_packet(const char *ctx, const char *direction,
			const unsigned char *buf, int len)
{
	struct dcerpc_header *hdr = (struct dcerpc_header *)buf;

	if (len < sizeof(struct dcerpc_header)) {
		printf("%s:%s: invalid dcerpc pdu len(%d)\n",
		       ctx, direction, len);
		fflush(stdout);
		return;
	}

	if (hdr->rpc_vers != 5 || hdr->rpc_vers_minor != 0) {
		printf("%s:%s: invalid dcerpc pdu len(%d) ver:%d min:%d\n",
		       ctx, direction, len,
		       hdr->rpc_vers, hdr->rpc_vers_minor);
		fflush(stdout);
		return;
	}

	if (hdr->frag_length != len) {
		printf("%s:%s: invalid dcerpc pdu len(%d) should be (%d)\n",
		       ctx, direction, len, hdr->frag_length);
		fflush(stdout);
		return;
	}


	switch (hdr->ptype) {
	case 0: /* request */
		printf("%s:%s: ptype[request] flen[%d] plen[%d] ahint[%d]\n\n",
		      ctx, direction, hdr->frag_length,
		      len - 24, *(DWORD *)(&buf[0x10]));
		dump_data(buf + 24, len - 24);
		printf("\n");
		fflush(stdout);
		break;

	case 2: /* response */
		printf("\n%s:%s: ptype[response] flen[%d] plen[%d] ahint[%d]\n\n",
		       ctx, direction, hdr->frag_length,
		       len - 24, *(DWORD *)(&buf[0x10]));
		dump_data(buf + 24, len - 24);
		printf("\n");
		fflush(stdout);
		break;

	case 11: /* bind */
#if 0
		printf("%s:%s: ptype[bind] flen[%d] call[%d] contexts[%d]\n\n"
		       ctx, direction, hdr->frag_length, hdr->call_id,
		       buf[24]);
		dump_data(buf + 24, len - 24);
		printf("\n");
		fflush(stdout);
#endif
		break;

	case 12: /* bind ack */
#if 0
		printf("%s:%s: ptype[bind_ack] flen[%d] call[%d]\n\n",
		       ctx, direction, hdr->frag_length, hdr->call_id);
		fflush(stdout);
#endif
		break;

	case 14: /* alter_req */
#if 1
		printf("%s:%s: ptype[alter_req] flen[%d] call[%d] contexts[%d]\n\n",
			   ctx, direction, hdr->frag_length, hdr->call_id,
			   buf[24]);
		//dump_data(buf + 24, len - 24);
		printf("\n");
		fflush(stdout);
#endif
		break;

	case 15: /* alter_ack */
#if 1
		printf("%s:%s: ptype[alter_ack] flen[%d] call[%d]\n\n",
		       ctx, direction, hdr->frag_length, hdr->call_id);
		fflush(stdout);
#endif
		break;

	default:
		printf("%s:%s: ptype[%d] flen[%d] call[%d]\n\n",
		       ctx, direction, hdr->ptype, hdr->frag_length, hdr->call_id);
		fflush(stdout);
		break;
	}
}

static void change_packet(const char *ctx, BOOL ndr64,
			  unsigned char *buf, int len)
{
	struct dcerpc_header *hdr = (struct dcerpc_header *)buf;
	BOOL is_ndr64 = FALSE;
	const unsigned char ndr64_buf[] = {
		0x33, 0x05, 0x71, 0x71, 0xBA, 0xBE, 0x37, 0x49,
		0x83, 0x19, 0xB5, 0xDB, 0xEF, 0x9C, 0xCC, 0x36
	};

	if (len < sizeof(struct dcerpc_header)) {
		printf("%s: invalid dcerpc pdu len(%d)\n",
			   ctx, len);
		fflush(stdout);
		return;
	}

	if (hdr->rpc_vers != 5 || hdr->rpc_vers_minor != 0) {
		printf("%s: invalid dcerpc pdu len(%d) ver:%d min:%d\n",
		       ctx, len,
		       hdr->rpc_vers, hdr->rpc_vers_minor);
		fflush(stdout);
		return;
	}

	if (hdr->frag_length != len) {
		printf("%s: invalid dcerpc pdu len(%d) should be (%d)\n",
		       ctx, len, hdr->frag_length);
		fflush(stdout);
		return;
	}

	switch (hdr->ptype) {
	case 11: /* bind */
	case 14: /* alter_req */

		if (buf[24] >= 2) {
			int ret;

			ret = memcmp(&buf[0x60], ndr64_buf, 16);
			if (ret == 0) {
				is_ndr64 = TRUE;
			}
		}

		if (is_ndr64 && !ndr64) {
			buf[24+0x48] = 0xFF;
			memset(&buf[0x60], 0xFF, 16);
			printf("%s: disable NDR64\n\n", ctx);
		} else if (!is_ndr64 && ndr64) {
			printf("\n%s: got NDR32 downgrade\n\n", ctx);
#ifndef DONOT_FORCE_NDR64
			printf("\n\tERROR!!!\n\n");
			memset(&buf[0x34], 0xFF, 16);
			printf("You may need to run 'vcvarsall.bat amd64' before 'nmake tcp'\n");
#endif
			printf("\n");
		} else if (is_ndr64) {
			printf("%s: got NDR64\n\n", ctx);
		} else {
			printf("%s: got NDR32\n\n", ctx);
		}
		//printf("%s: bind with %u pres\n", ctx, buf[24]);
		fflush(stdout);
		break;
	}
}

static int sock_pending(SOCKET s)
{
	int ret, error;
	int value = 0;
	int len;

	ret = ioctlsocket(s, FIONREAD, &value);
	if (ret == -1) {
		return ret;
	}

	if (ret != 0) {
		/* this should not be reached */
		return -1;
	}

	if (value != 0) {
		return value;
	}

	error = 0;
	len = sizeof(error);

	/*
	 * if no data is available check if the socket is in error state. For
	 * dgram sockets it's the way to return ICMP error messages of
	 * connected sockets to the caller.
	 */
	ret = getsockopt(s, SOL_SOCKET, SO_ERROR, (char *)&error, &len);
	if (ret == -1) {
		return ret;
	}
	if (error != 0) {
		return -1;
	}
	return 0;
}

DWORD WINAPI NDRProxyThread(LPVOID lpParameter)
{
	struct NDRProxyThreadCtx *p = (struct NDRProxyThreadCtx *)lpParameter;

	while (!p->ctx->stop) {
		int r, s;
		int ret = -1;
		BYTE buf[5840];

		Sleep(250);

		ret = sock_pending(p->InSocket);
		if (ret == 0) {
			goto out;
		}

		r = recv(p->InSocket, buf, sizeof(buf), 0);
		if (r <= 0) {
			ret = WSAGetLastError();
			printf("%s: recv(in) failed[%d][%d]\n", p->ctx->name, r, ret);
			fflush(stdout);
			goto stop;
		}

		change_packet(p->ctx->name, p->ctx->ndr64, buf, r);
		fflush(stdout);

		dump_packet(p->ctx->name, "in => out", buf, r);
		fflush(stdout);

out:
		s = send(p->OutSocket, buf, r, 0);
		if (s <= 0) {
			ret = WSAGetLastError();
			printf("%s: send(out) failed[%d][%d]\n", p->ctx->name, s, ret);
			fflush(stdout);
			goto stop;
		}

		ret = sock_pending(p->OutSocket);
		if (ret == 0) {
			goto next;
		}

		r = recv(p->OutSocket, buf, sizeof(buf), 0);
		if (r <= 0) {
			ret = WSAGetLastError();
			printf("%s: recv(out) failed[%d][%d]\n", p->ctx->name, r, ret);
			fflush(stdout);
			goto stop;
		}

		dump_packet(p->ctx->name, "out => in", buf, r);
		fflush(stdout);

		s = send(p->InSocket, buf, r, 0);
		if (s <= 0) {
			ret = WSAGetLastError();
			printf("%s: send(in) failed[%d][%d]\n", p->ctx->name, s, ret);
			fflush(stdout);
			goto stop;
		}
next:
		continue;
	}
stop:
	closesocket(p->InSocket);
	closesocket(p->OutSocket);

	printf("NDRTcpThread[%s] stop\n", p->ctx->name);
	fflush(stdout);
	return 0;
}

DWORD WINAPI NDRTcpThread(LPVOID lpParameter)
{
	struct NDRTcpThreadCtx *ctx = (struct NDRTcpThreadCtx *)lpParameter;
	int ret = -1;
	SOCKET ListenSocket;
	struct sockaddr_in saServer;
	struct sockaddr_in saClient;

	//printf("NDRTcpThread[%s] start\n", ctx->name);
	fflush(stdout);

	ListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (ListenSocket == INVALID_SOCKET) {
		ret = WSAGetLastError();
		printf("socket() failed[%d][%d]\n", ListenSocket, ret);
		fflush(stdout);
		goto failed;
	}

	saServer.sin_family = AF_INET;
	saServer.sin_addr.s_addr = inet_addr(LISTEN_IP);
	saServer.sin_port = htons(ctx->listen_port);

	saClient.sin_family = AF_INET;
	saClient.sin_addr.s_addr = inet_addr(FORWARD_IP);
	saClient.sin_port = htons(ctx->client_port);

	ret = bind(ListenSocket, (SOCKADDR*)&saServer, sizeof(saServer));
	if (ret == SOCKET_ERROR) {
		ret = WSAGetLastError();
		printf("bind() failed[%d]\n", ret);
		fflush(stdout);
		goto failed;
	}

	ret = listen(ListenSocket, 10);
	if (ret == SOCKET_ERROR) {
		ret = WSAGetLastError();
		printf("listen() failed[%d]\n", ret);
		fflush(stdout);
		goto failed;
	}

	while (!ctx->stop) {
		struct sockaddr_in sa;
		int sa_len = sizeof(sa);
		struct NDRProxyThreadCtx *p = malloc(sizeof(*p));
		p->ctx = ctx;

		p->InSocket = accept(ListenSocket, (SOCKADDR *)&sa, &sa_len);
		if (p->InSocket == INVALID_SOCKET) {
			ret = WSAGetLastError();
			printf("%s: accept() failed[%d][%d]\n", p->ctx->name, p->InSocket, ret);
			fflush(stdout);
			continue;
		}

		p->OutSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
		if (p->OutSocket == INVALID_SOCKET) {
			ret = WSAGetLastError();
			printf("%s: socket(out) failed[%d][%d]\n", p->ctx->name, p->OutSocket, ret);
			fflush(stdout);
			closesocket(p->InSocket);
			continue;
		}

		ret = connect(p->OutSocket, (SOCKADDR*)&saClient, sizeof(saClient));
		if (ret == SOCKET_ERROR) {
			ret = WSAGetLastError();
			printf("%s: connect() failed[%d]\n", p->ctx->name, ret);
			fflush(stdout);
			closesocket(p->InSocket);
			closesocket(p->OutSocket);
			continue;
		}

		p->hThread = CreateThread(
			NULL,           // default security attributes
			0,              // use default stack size
			NDRProxyThread, // thread function name
			p,              // argument to thread function
			0,              // use default creation flags
			&p->dwThreadId);// returns the thread identifier
		if (p->hThread == NULL) {
			printf("failed to create thread ndr32\n");
			fflush(stdout);
			return -1;
		}
	}

	//printf("NDRTcpThread[%s] stop\n", ctx->name);
	fflush(stdout);
	return 0;
failed:
	printf("NDRTcpThread[%s] failed[%d]\n", ctx->name, ret);
	fflush(stdout);
	return ret;
}

struct NDRRpcThreadCtx {
	const char *name;
	short listen_port;
};

DWORD WINAPI NDRRpcThread(LPVOID lpParameter)
{
	struct NDRRpcThreadCtx *ctx = (struct NDRRpcThreadCtx *)lpParameter;
	int ret = -1;
	RPC_STATUS status;
	RPC_BINDING_VECTOR *pBindingVector;

#define RPC_MIN_CALLS 1
#define RPC_MAX_CALLS 20

	//printf("NDRRpcThread[%s] start\n", ctx->name);
	fflush(stdout);
	status = RpcServerUseProtseqEp("ncacn_ip_tcp", RPC_MAX_CALLS, "5055", NULL);
	if (status) {
		printf("Failed to register ncacn_ip_tcp endpoint\n");
		fflush(stdout);
		return status;
	}

	status = RpcServerInqBindings(&pBindingVector);
	if (status) {
		printf("Failed RpcServerInqBindings\n");
		fflush(stdout);
		return status;
	}

#if 0
	status = RpcEpRegister(srv_midltests_v0_0_s_ifspec, pBindingVector, NULL, "midltests server");
	if (status) {
		printf("Failed RpcEpRegister\n");
		fflush(stdout);
		return status;
	}
#endif
	status = RpcServerRegisterIf(srv_midltests_v0_0_s_ifspec, NULL, NULL);
	if (status) {
		printf("Failed to register interface\n");
		fflush(stdout);
		return status;
	}

	status = RpcServerListen(RPC_MIN_CALLS, RPC_MAX_CALLS, FALSE);
	if (status) {
		printf("RpcServerListen returned error %d\n", status);
		fflush(stdout);
		return status;
	}

	printf("NDRRpcThread[%s] stop\n", ctx->name);
	fflush(stdout);
	return 0;
failed:
	printf("NDRRpcThread[%s] failed[%d]\n", ctx->name, ret);
	fflush(stdout);
	return ret;
}

int main(int argc, char **argv)
{
	int ret;
	struct NDRTcpThreadCtx ctx_ndr32;
	struct NDRTcpThreadCtx ctx_ndr64;
	struct NDRRpcThreadCtx ctx_rpc;
	DWORD   dwThreadIdArray[3];
	HANDLE  hThreadArray[3];
	WORD wVersionRequested = MAKEWORD(2, 2);
	WSADATA wsaData;
	char *binding;
	RPC_STATUS status;

	ret = WSAStartup(wVersionRequested, &wsaData);
	if (ret != 0) {
		printf("WSAStartup failed with error: %d\n", ret);
		fflush(stdout);
		return -1;
	}

	ctx_ndr32.name = "ndr32";
	ctx_ndr32.listen_port = 5032;
	ctx_ndr32.client_port = 5055;
	ctx_ndr32.ndr64 = FALSE;
	ctx_ndr32.stop = FALSE;
	hThreadArray[0] = CreateThread(
		NULL,                   // default security attributes
		0,                      // use default stack size
		NDRTcpThread,           // thread function name
		&ctx_ndr32,             // argument to thread function
		0,                      // use default creation flags
		&dwThreadIdArray[0]);   // returns the thread identifier
	if (hThreadArray[0] == NULL) {
		printf("failed to create thread ndr32\n");
		fflush(stdout);
		return -1;
	}

	ctx_ndr64.name = "ndr64";
	ctx_ndr64.listen_port = 5064;
	ctx_ndr64.client_port = 5055;
	ctx_ndr64.ndr64 = TRUE;
	ctx_ndr64.stop = FALSE;
	hThreadArray[1] = CreateThread(
		NULL,                   // default security attributes
		0,                      // use default stack size
		NDRTcpThread,           // thread function name
		&ctx_ndr64,             // argument to thread function
		0,                      // use default creation flags
		&dwThreadIdArray[1]);   // returns the thread identifier
	if (hThreadArray[1] == NULL) {
		printf("failed to create thread ndr64\n");
		fflush(stdout);
		return -1;
	}

	ctx_rpc.name = "rpc";
	ctx_rpc.listen_port = 5050;
	hThreadArray[2] = CreateThread(
		NULL,                   // default security attributes
		0,                      // use default stack size
		NDRRpcThread,           // thread function name
		&ctx_rpc,               // argument to thread function
		0,                      // use default creation flags
		&dwThreadIdArray[2]);   // returns the thread identifier
	if (hThreadArray[2] == NULL) {
		printf("failed to create thread rpc\n");
		fflush(stdout);
		return -1;
	}

	printf("Wait for setup of server threads\n");
	fflush(stdout);
	ret = WaitForMultipleObjects(3, hThreadArray, TRUE, 3000);
	if (ret == WAIT_TIMEOUT) {
		/* OK */
	} else {
		printf("Failed to setup of server threads %d:%d\n",
			ret, GetLastError());
		fflush(stdout);
		return -1;
	}
	ret = 0;

	printf("\nTest NDR32\n\n");
	fflush(stdout);
	binding = "ncacn_ip_tcp:" CONNECT_IP "[5032]";
	status = RpcBindingFromStringBinding(
			binding,
			&midltests_IfHandle);
	if (status) {
		printf("RpcBindingFromStringBinding returned %d\n", status);
		fflush(stdout);
		return status;
	}

	RpcTryExcept {
		midltests();
	} RpcExcept(1) {
		ret = RpcExceptionCode();
		printf("NDR32 Runtime error 0x%x\n", ret);
		fflush(stdout);
	} RpcEndExcept
	ctx_ndr32.stop = TRUE;

	Sleep(250);

	printf("\nTest NDR64\n\n");
	binding = "ncacn_ip_tcp:" CONNECT_IP "[5064]";
	status = RpcBindingFromStringBinding(
			binding,
			&midltests_IfHandle);
	if (status) {
		printf("RpcBindingFromStringBinding returned %d\n", status);
		fflush(stdout);
		return status;
	}

	RpcTryExcept {
		midltests();
	} RpcExcept(1) {
		ret = RpcExceptionCode();
		printf("Runtime error 0x%x\n", ret);
		fflush(stdout);
	} RpcEndExcept
	ctx_ndr64.stop = TRUE;

	WaitForMultipleObjects(3, hThreadArray, TRUE, 2000);

	if (ret == 0) {
		printf("\nTest OK\n");
		fflush(stdout);
	} else {
		printf("\nTest FAILED[%d]\n", ret);
		fflush(stdout);
	}

	return ret;
}