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rpcrt4: Add ref counting to RPC connections, and grab a reference while processing...
[wine/multimedia.git] / dlls / rpcrt4 / rpc_message.c
blob189f6c40f67c4a0e2695df6e13ea5cb1467fc5d0
1 /*
2 * RPC messages
3 *
4 * Copyright 2001-2002 Ove Kåven, TransGaming Technologies
5 * Copyright 2004 Filip Navara
6 * Copyright 2006 CodeWeavers
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <string.h>
26
27 #include "windef.h"
28 #include "winbase.h"
29 #include "winerror.h"
30 #include "winuser.h"
31
32 #include "rpc.h"
33 #include "rpcndr.h"
34 #include "rpcdcep.h"
35
36 #include "wine/debug.h"
37
38 #include "rpc_binding.h"
39 #include "rpc_defs.h"
40 #include "rpc_message.h"
41 #include "ncastatus.h"
42
43 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
44
45 /* note: the DCE/RPC spec says the alignment amount should be 4, but
46 * MS/RPC servers seem to always use 16 */
47 #define AUTH_ALIGNMENT 16
48
49 /* gets the amount needed to round a value up to the specified alignment */
50 #define ROUND_UP_AMOUNT(value, alignment) \
51 (((alignment) - (((value) % (alignment)))) % (alignment))
52 #define ROUND_UP(value, alignment) (((value) + ((alignment) - 1)) & ~((alignment)-1))
53
54 static RPC_STATUS I_RpcReAllocateBuffer(PRPC_MESSAGE pMsg);
55
56 DWORD RPCRT4_GetHeaderSize(const RpcPktHdr *Header)
57 {
58 static const DWORD header_sizes[] = {
59 sizeof(Header->request), 0, sizeof(Header->response),
60 sizeof(Header->fault), 0, 0, 0, 0, 0, 0, 0, sizeof(Header->bind),
61 sizeof(Header->bind_ack), sizeof(Header->bind_nack),
62 0, 0, sizeof(Header->auth3), 0, 0, 0, sizeof(Header->http)
63 };
64 ULONG ret = 0;
65
66 if (Header->common.ptype < sizeof(header_sizes) / sizeof(header_sizes[0])) {
67 ret = header_sizes[Header->common.ptype];
68 if (ret == 0)
69 FIXME("unhandled packet type %u\n", Header->common.ptype);
70 if (Header->common.flags & RPC_FLG_OBJECT_UUID)
71 ret += sizeof(UUID);
72 } else {
73 WARN("invalid packet type %u\n", Header->common.ptype);
74 }
75
76 return ret;
77 }
78
79 static int packet_has_body(const RpcPktHdr *Header)
80 {
81 return (Header->common.ptype == PKT_FAULT) ||
82 (Header->common.ptype == PKT_REQUEST) ||
83 (Header->common.ptype == PKT_RESPONSE);
84 }
85
86 static int packet_has_auth_verifier(const RpcPktHdr *Header)
87 {
88 return !(Header->common.ptype == PKT_BIND_NACK) &&
89 !(Header->common.ptype == PKT_SHUTDOWN);
90 }
91
92 static int packet_does_auth_negotiation(const RpcPktHdr *Header)
93 {
94 switch (Header->common.ptype)
95 {
96 case PKT_BIND:
97 case PKT_BIND_ACK:
98 case PKT_AUTH3:
99 case PKT_ALTER_CONTEXT:
100 case PKT_ALTER_CONTEXT_RESP:
101 return TRUE;
102 default:
103 return FALSE;
104 }
105 }
106
107 static VOID RPCRT4_BuildCommonHeader(RpcPktHdr *Header, unsigned char PacketType,
108 ULONG DataRepresentation)
109 {
110 Header->common.rpc_ver = RPC_VER_MAJOR;
111 Header->common.rpc_ver_minor = RPC_VER_MINOR;
112 Header->common.ptype = PacketType;
113 Header->common.drep[0] = LOBYTE(LOWORD(DataRepresentation));
114 Header->common.drep[1] = HIBYTE(LOWORD(DataRepresentation));
115 Header->common.drep[2] = LOBYTE(HIWORD(DataRepresentation));
116 Header->common.drep[3] = HIBYTE(HIWORD(DataRepresentation));
117 Header->common.auth_len = 0;
118 Header->common.call_id = 1;
119 Header->common.flags = 0;
120 /* Flags and fragment length are computed in RPCRT4_Send. */
121 }
122
123 static RpcPktHdr *RPCRT4_BuildRequestHeader(ULONG DataRepresentation,
124 ULONG BufferLength,
125 unsigned short ProcNum,
126 UUID *ObjectUuid)
127 {
128 RpcPktHdr *header;
129 BOOL has_object;
130 RPC_STATUS status;
131
132 has_object = (ObjectUuid != NULL && !UuidIsNil(ObjectUuid, &status));
133 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
134 sizeof(header->request) + (has_object ? sizeof(UUID) : 0));
135 if (header == NULL) {
136 return NULL;
137 }
138
139 RPCRT4_BuildCommonHeader(header, PKT_REQUEST, DataRepresentation);
140 header->common.frag_len = sizeof(header->request);
141 header->request.alloc_hint = BufferLength;
142 header->request.context_id = 0;
143 header->request.opnum = ProcNum;
144 if (has_object) {
145 header->common.flags |= RPC_FLG_OBJECT_UUID;
146 header->common.frag_len += sizeof(UUID);
147 memcpy(&header->request + 1, ObjectUuid, sizeof(UUID));
148 }
149
150 return header;
151 }
152
153 RpcPktHdr *RPCRT4_BuildResponseHeader(ULONG DataRepresentation, ULONG BufferLength)
154 {
155 RpcPktHdr *header;
156
157 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->response));
158 if (header == NULL) {
159 return NULL;
160 }
161
162 RPCRT4_BuildCommonHeader(header, PKT_RESPONSE, DataRepresentation);
163 header->common.frag_len = sizeof(header->response);
164 header->response.alloc_hint = BufferLength;
165
166 return header;
167 }
168
169 RpcPktHdr *RPCRT4_BuildFaultHeader(ULONG DataRepresentation, RPC_STATUS Status)
170 {
171 RpcPktHdr *header;
172
173 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->fault));
174 if (header == NULL) {
175 return NULL;
176 }
177
178 RPCRT4_BuildCommonHeader(header, PKT_FAULT, DataRepresentation);
179 header->common.frag_len = sizeof(header->fault);
180 header->fault.status = Status;
181
182 return header;
183 }
184
185 RpcPktHdr *RPCRT4_BuildBindHeader(ULONG DataRepresentation,
186 unsigned short MaxTransmissionSize,
187 unsigned short MaxReceiveSize,
188 ULONG AssocGroupId,
189 const RPC_SYNTAX_IDENTIFIER *AbstractId,
190 const RPC_SYNTAX_IDENTIFIER *TransferId)
191 {
192 RpcPktHdr *header;
193 RpcContextElement *ctxt_elem;
194
195 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
196 sizeof(header->bind) + FIELD_OFFSET(RpcContextElement, transfer_syntaxes[1]));
197 if (header == NULL) {
198 return NULL;
199 }
200 ctxt_elem = (RpcContextElement *)(&header->bind + 1);
201
202 RPCRT4_BuildCommonHeader(header, PKT_BIND, DataRepresentation);
203 header->common.frag_len = sizeof(header->bind) + FIELD_OFFSET(RpcContextElement, transfer_syntaxes[1]);
204 header->bind.max_tsize = MaxTransmissionSize;
205 header->bind.max_rsize = MaxReceiveSize;
206 header->bind.assoc_gid = AssocGroupId;
207 header->bind.num_elements = 1;
208 ctxt_elem->num_syntaxes = 1;
209 ctxt_elem->abstract_syntax = *AbstractId;
210 ctxt_elem->transfer_syntaxes[0] = *TransferId;
211
212 return header;
213 }
214
215 static RpcPktHdr *RPCRT4_BuildAuthHeader(ULONG DataRepresentation)
216 {
217 RpcPktHdr *header;
218
219 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
220 sizeof(header->auth3));
221 if (header == NULL)
222 return NULL;
223
224 RPCRT4_BuildCommonHeader(header, PKT_AUTH3, DataRepresentation);
225 header->common.frag_len = sizeof(header->auth3);
226
227 return header;
228 }
229
230 RpcPktHdr *RPCRT4_BuildBindNackHeader(ULONG DataRepresentation,
231 unsigned char RpcVersion,
232 unsigned char RpcVersionMinor,
233 unsigned short RejectReason)
234 {
235 RpcPktHdr *header;
236
237 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, FIELD_OFFSET(RpcPktHdr, bind_nack.protocols[1]));
238 if (header == NULL) {
239 return NULL;
240 }
241
242 RPCRT4_BuildCommonHeader(header, PKT_BIND_NACK, DataRepresentation);
243 header->common.frag_len = FIELD_OFFSET(RpcPktHdr, bind_nack.protocols[1]);
244 header->bind_nack.reject_reason = RejectReason;
245 header->bind_nack.protocols_count = 1;
246 header->bind_nack.protocols[0].rpc_ver = RpcVersion;
247 header->bind_nack.protocols[0].rpc_ver_minor = RpcVersionMinor;
248
249 return header;
250 }
251
252 RpcPktHdr *RPCRT4_BuildBindAckHeader(ULONG DataRepresentation,
253 unsigned short MaxTransmissionSize,
254 unsigned short MaxReceiveSize,
255 ULONG AssocGroupId,
256 LPCSTR ServerAddress,
257 unsigned char ResultCount,
258 const RpcResult *Results)
259 {
260 RpcPktHdr *header;
261 ULONG header_size;
262 RpcAddressString *server_address;
263 RpcResultList *results;
264
265 header_size = sizeof(header->bind_ack) +
266 ROUND_UP(FIELD_OFFSET(RpcAddressString, string[strlen(ServerAddress) + 1]), 4) +
267 FIELD_OFFSET(RpcResultList, results[ResultCount]);
268
269 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, header_size);
270 if (header == NULL) {
271 return NULL;
272 }
273
274 RPCRT4_BuildCommonHeader(header, PKT_BIND_ACK, DataRepresentation);
275 header->common.frag_len = header_size;
276 header->bind_ack.max_tsize = MaxTransmissionSize;
277 header->bind_ack.max_rsize = MaxReceiveSize;
278 header->bind_ack.assoc_gid = AssocGroupId;
279 server_address = (RpcAddressString*)(&header->bind_ack + 1);
280 server_address->length = strlen(ServerAddress) + 1;
281 strcpy(server_address->string, ServerAddress);
282 /* results is 4-byte aligned */
283 results = (RpcResultList*)((ULONG_PTR)server_address + ROUND_UP(FIELD_OFFSET(RpcAddressString, string[server_address->length]), 4));
284 results->num_results = ResultCount;
285 memcpy(&results->results[0], Results, ResultCount * sizeof(*Results));
286
287 return header;
288 }
289
290 RpcPktHdr *RPCRT4_BuildHttpHeader(ULONG DataRepresentation,
291 unsigned short flags,
292 unsigned short num_data_items,
293 unsigned int payload_size)
294 {
295 RpcPktHdr *header;
296
297 header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->http) + payload_size);
298 if (header == NULL) {
299 ERR("failed to allocate memory\n");
300 return NULL;
301 }
302
303 RPCRT4_BuildCommonHeader(header, PKT_HTTP, DataRepresentation);
304 /* since the packet isn't current sent using RPCRT4_Send, set the flags
305 * manually here */
306 header->common.flags = RPC_FLG_FIRST|RPC_FLG_LAST;
307 header->common.call_id = 0;
308 header->common.frag_len = sizeof(header->http) + payload_size;
309 header->http.flags = flags;
310 header->http.num_data_items = num_data_items;
311
312 return header;
313 }
314
315 #define WRITE_HTTP_PAYLOAD_FIELD_UINT32(payload, type, value) \
316 do { \
317 *(unsigned int *)(payload) = (type); \
318 (payload) += 4; \
319 *(unsigned int *)(payload) = (value); \
320 (payload) += 4; \
321 } while (0)
322
323 #define WRITE_HTTP_PAYLOAD_FIELD_UUID(payload, type, uuid) \
324 do { \
325 *(unsigned int *)(payload) = (type); \
326 (payload) += 4; \
327 *(UUID *)(payload) = (uuid); \
328 (payload) += sizeof(UUID); \
329 } while (0)
330
331 #define WRITE_HTTP_PAYLOAD_FIELD_FLOW_CONTROL(payload, bytes_transmitted, flow_control_increment, uuid) \
332 do { \
333 *(unsigned int *)(payload) = 0x00000001; \
334 (payload) += 4; \
335 *(unsigned int *)(payload) = (bytes_transmitted); \
336 (payload) += 4; \
337 *(unsigned int *)(payload) = (flow_control_increment); \
338 (payload) += 4; \
339 *(UUID *)(payload) = (uuid); \
340 (payload) += sizeof(UUID); \
341 } while (0)
342
343 RpcPktHdr *RPCRT4_BuildHttpConnectHeader(unsigned short flags, int out_pipe,
344 const UUID *connection_uuid,
345 const UUID *pipe_uuid,
346 const UUID *association_uuid)
347 {
348 RpcPktHdr *header;
349 unsigned int size;
350 char *payload;
351
352 size = 8 + 4 + sizeof(UUID) + 4 + sizeof(UUID) + 8;
353 if (!out_pipe)
354 size += 8 + 4 + sizeof(UUID);
355
356 header = RPCRT4_BuildHttpHeader(NDR_LOCAL_DATA_REPRESENTATION, flags,
357 out_pipe ? 4 : 6, size);
358 if (!header) return NULL;
359 payload = (char *)(&header->http+1);
360
361 /* FIXME: what does this part of the payload do? */
362 WRITE_HTTP_PAYLOAD_FIELD_UINT32(payload, 0x00000006, 0x00000001);
363
364 WRITE_HTTP_PAYLOAD_FIELD_UUID(payload, 0x00000003, *connection_uuid);
365 WRITE_HTTP_PAYLOAD_FIELD_UUID(payload, 0x00000003, *pipe_uuid);
366
367 if (out_pipe)
368 /* FIXME: what does this part of the payload do? */
369 WRITE_HTTP_PAYLOAD_FIELD_UINT32(payload, 0x00000000, 0x00010000);
370 else
371 {
372 /* FIXME: what does this part of the payload do? */
373 WRITE_HTTP_PAYLOAD_FIELD_UINT32(payload, 0x00000004, 0x40000000);
374 /* FIXME: what does this part of the payload do? */
375 WRITE_HTTP_PAYLOAD_FIELD_UINT32(payload, 0x00000005, 0x000493e0);
376
377 WRITE_HTTP_PAYLOAD_FIELD_UUID(payload, 0x0000000c, *association_uuid);
378 }
379
380 return header;
381 }
382
383 RpcPktHdr *RPCRT4_BuildHttpFlowControlHeader(BOOL server, ULONG bytes_transmitted,
384 ULONG flow_control_increment,
385 const UUID *pipe_uuid)
386 {
387 RpcPktHdr *header;
388 char *payload;
389
390 header = RPCRT4_BuildHttpHeader(NDR_LOCAL_DATA_REPRESENTATION, 0x2, 2,
391 5 * sizeof(ULONG) + sizeof(UUID));
392 if (!header) return NULL;
393 payload = (char *)(&header->http+1);
394
395 WRITE_HTTP_PAYLOAD_FIELD_UINT32(payload, 0x0000000d, (server ? 0x0 : 0x3));
396
397 WRITE_HTTP_PAYLOAD_FIELD_FLOW_CONTROL(payload, bytes_transmitted,
398 flow_control_increment, *pipe_uuid);
399 return header;
400 }
401
402 VOID RPCRT4_FreeHeader(RpcPktHdr *Header)
403 {
404 HeapFree(GetProcessHeap(), 0, Header);
405 }
406
407 NCA_STATUS RPC2NCA_STATUS(RPC_STATUS status)
408 {
409 switch (status)
410 {
411 case ERROR_INVALID_HANDLE: return NCA_S_FAULT_CONTEXT_MISMATCH;
412 case ERROR_OUTOFMEMORY: return NCA_S_FAULT_REMOTE_NO_MEMORY;
413 case RPC_S_NOT_LISTENING: return NCA_S_SERVER_TOO_BUSY;
414 case RPC_S_UNKNOWN_IF: return NCA_S_UNK_IF;
415 case RPC_S_SERVER_TOO_BUSY: return NCA_S_SERVER_TOO_BUSY;
416 case RPC_S_CALL_FAILED: return NCA_S_FAULT_UNSPEC;
417 case RPC_S_CALL_FAILED_DNE: return NCA_S_MANAGER_NOT_ENTERED;
418 case RPC_S_PROTOCOL_ERROR: return NCA_S_PROTO_ERROR;
419 case RPC_S_UNSUPPORTED_TYPE: return NCA_S_UNSUPPORTED_TYPE;
420 case RPC_S_INVALID_TAG: return NCA_S_FAULT_INVALID_TAG;
421 case RPC_S_INVALID_BOUND: return NCA_S_FAULT_INVALID_BOUND;
422 case RPC_S_PROCNUM_OUT_OF_RANGE: return NCA_S_OP_RNG_ERROR;
423 case RPC_X_SS_HANDLES_MISMATCH: return NCA_S_FAULT_CONTEXT_MISMATCH;
424 case RPC_S_CALL_CANCELLED: return NCA_S_FAULT_CANCEL;
425 case RPC_S_COMM_FAILURE: return NCA_S_COMM_FAILURE;
426 case RPC_X_WRONG_PIPE_ORDER: return NCA_S_FAULT_PIPE_ORDER;
427 case RPC_X_PIPE_CLOSED: return NCA_S_FAULT_PIPE_CLOSED;
428 case RPC_X_PIPE_DISCIPLINE_ERROR: return NCA_S_FAULT_PIPE_DISCIPLINE;
429 case RPC_X_PIPE_EMPTY: return NCA_S_FAULT_PIPE_EMPTY;
430 case STATUS_FLOAT_DIVIDE_BY_ZERO: return NCA_S_FAULT_FP_DIV_ZERO;
431 case STATUS_FLOAT_INVALID_OPERATION: return NCA_S_FAULT_FP_ERROR;
432 case STATUS_FLOAT_OVERFLOW: return NCA_S_FAULT_FP_OVERFLOW;
433 case STATUS_FLOAT_UNDERFLOW: return NCA_S_FAULT_FP_UNDERFLOW;
434 case STATUS_INTEGER_DIVIDE_BY_ZERO: return NCA_S_FAULT_INT_DIV_BY_ZERO;
435 case STATUS_INTEGER_OVERFLOW: return NCA_S_FAULT_INT_OVERFLOW;
436 default: return status;
437 }
438 }
439
440 static RPC_STATUS NCA2RPC_STATUS(NCA_STATUS status)
441 {
442 switch (status)
443 {
444 case NCA_S_COMM_FAILURE: return RPC_S_COMM_FAILURE;
445 case NCA_S_OP_RNG_ERROR: return RPC_S_PROCNUM_OUT_OF_RANGE;
446 case NCA_S_UNK_IF: return RPC_S_UNKNOWN_IF;
447 case NCA_S_YOU_CRASHED: return RPC_S_CALL_FAILED;
448 case NCA_S_PROTO_ERROR: return RPC_S_PROTOCOL_ERROR;
449 case NCA_S_OUT_ARGS_TOO_BIG: return ERROR_NOT_ENOUGH_SERVER_MEMORY;
450 case NCA_S_SERVER_TOO_BUSY: return RPC_S_SERVER_TOO_BUSY;
451 case NCA_S_UNSUPPORTED_TYPE: return RPC_S_UNSUPPORTED_TYPE;
452 case NCA_S_FAULT_INT_DIV_BY_ZERO: return RPC_S_ZERO_DIVIDE;
453 case NCA_S_FAULT_ADDR_ERROR: return RPC_S_ADDRESS_ERROR;
454 case NCA_S_FAULT_FP_DIV_ZERO: return RPC_S_FP_DIV_ZERO;
455 case NCA_S_FAULT_FP_UNDERFLOW: return RPC_S_FP_UNDERFLOW;
456 case NCA_S_FAULT_FP_OVERFLOW: return RPC_S_FP_OVERFLOW;
457 case NCA_S_FAULT_INVALID_TAG: return RPC_S_INVALID_TAG;
458 case NCA_S_FAULT_INVALID_BOUND: return RPC_S_INVALID_BOUND;
459 case NCA_S_RPC_VERSION_MISMATCH: return RPC_S_PROTOCOL_ERROR;
460 case NCA_S_UNSPEC_REJECT: return RPC_S_CALL_FAILED_DNE;
461 case NCA_S_BAD_ACTID: return RPC_S_CALL_FAILED_DNE;
462 case NCA_S_WHO_ARE_YOU_FAILED: return RPC_S_CALL_FAILED;
463 case NCA_S_MANAGER_NOT_ENTERED: return RPC_S_CALL_FAILED_DNE;
464 case NCA_S_FAULT_CANCEL: return RPC_S_CALL_CANCELLED;
465 case NCA_S_FAULT_ILL_INST: return RPC_S_ADDRESS_ERROR;
466 case NCA_S_FAULT_FP_ERROR: return RPC_S_FP_OVERFLOW;
467 case NCA_S_FAULT_INT_OVERFLOW: return RPC_S_ADDRESS_ERROR;
468 case NCA_S_FAULT_UNSPEC: return RPC_S_CALL_FAILED;
469 case NCA_S_FAULT_PIPE_EMPTY: return RPC_X_PIPE_EMPTY;
470 case NCA_S_FAULT_PIPE_CLOSED: return RPC_X_PIPE_CLOSED;
471 case NCA_S_FAULT_PIPE_ORDER: return RPC_X_WRONG_PIPE_ORDER;
472 case NCA_S_FAULT_PIPE_DISCIPLINE: return RPC_X_PIPE_DISCIPLINE_ERROR;
473 case NCA_S_FAULT_PIPE_COMM_ERROR: return RPC_S_COMM_FAILURE;
474 case NCA_S_FAULT_PIPE_MEMORY: return ERROR_OUTOFMEMORY;
475 case NCA_S_FAULT_CONTEXT_MISMATCH: return ERROR_INVALID_HANDLE;
476 case NCA_S_FAULT_REMOTE_NO_MEMORY: return ERROR_NOT_ENOUGH_SERVER_MEMORY;
477 default: return status;
478 }
479 }
480
481 /* assumes the common header fields have already been validated */
482 BOOL RPCRT4_IsValidHttpPacket(RpcPktHdr *hdr, unsigned char *data,
483 unsigned short data_len)
484 {
485 unsigned short i;
486 BYTE *p = data;
487
488 for (i = 0; i < hdr->http.num_data_items; i++)
489 {
490 ULONG type;
491
492 if (data_len < sizeof(ULONG))
493 return FALSE;
494
495 type = *(ULONG *)p;
496 p += sizeof(ULONG);
497 data_len -= sizeof(ULONG);
498
499 switch (type)
500 {
501 case 0x3:
502 case 0xc:
503 if (data_len < sizeof(GUID))
504 return FALSE;
505 p += sizeof(GUID);
506 data_len -= sizeof(GUID);
507 break;
508 case 0x0:
509 case 0x2:
510 case 0x4:
511 case 0x5:
512 case 0x6:
513 case 0xd:
514 if (data_len < sizeof(ULONG))
515 return FALSE;
516 p += sizeof(ULONG);
517 data_len -= sizeof(ULONG);
518 break;
519 case 0x1:
520 if (data_len < 24)
521 return FALSE;
522 p += 24;
523 data_len -= 24;
524 break;
525 default:
526 FIXME("unimplemented type 0x%x\n", type);
527 break;
528 }
529 }
530 return TRUE;
531 }
532
533 /* assumes the HTTP packet has been validated */
534 static unsigned char *RPCRT4_NextHttpHeaderField(unsigned char *data)
535 {
536 ULONG type;
537
538 type = *(ULONG *)data;
539 data += sizeof(ULONG);
540
541 switch (type)
542 {
543 case 0x3:
544 case 0xc:
545 return data + sizeof(GUID);
546 case 0x0:
547 case 0x2:
548 case 0x4:
549 case 0x5:
550 case 0x6:
551 case 0xd:
552 return data + sizeof(ULONG);
553 case 0x1:
554 return data + 24;
555 default:
556 FIXME("unimplemented type 0x%x\n", type);
557 return data;
558 }
559 }
560
561 #define READ_HTTP_PAYLOAD_FIELD_TYPE(data) *(ULONG *)(data)
562 #define GET_HTTP_PAYLOAD_FIELD_DATA(data) ((data) + sizeof(ULONG))
563
564 /* assumes the HTTP packet has been validated */
565 RPC_STATUS RPCRT4_ParseHttpPrepareHeader1(RpcPktHdr *header,
566 unsigned char *data, ULONG *field1)
567 {
568 ULONG type;
569 if (header->http.flags != 0x0)
570 {
571 ERR("invalid flags 0x%x\n", header->http.flags);
572 return RPC_S_PROTOCOL_ERROR;
573 }
574 if (header->http.num_data_items != 1)
575 {
576 ERR("invalid number of data items %d\n", header->http.num_data_items);
577 return RPC_S_PROTOCOL_ERROR;
578 }
579 type = READ_HTTP_PAYLOAD_FIELD_TYPE(data);
580 if (type != 0x00000002)
581 {
582 ERR("invalid type 0x%08x\n", type);
583 return RPC_S_PROTOCOL_ERROR;
584 }
585 *field1 = *(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data);
586 return RPC_S_OK;
587 }
588
589 /* assumes the HTTP packet has been validated */
590 RPC_STATUS RPCRT4_ParseHttpPrepareHeader2(RpcPktHdr *header,
591 unsigned char *data, ULONG *field1,
592 ULONG *bytes_until_next_packet,
593 ULONG *field3)
594 {
595 ULONG type;
596 if (header->http.flags != 0x0)
597 {
598 ERR("invalid flags 0x%x\n", header->http.flags);
599 return RPC_S_PROTOCOL_ERROR;
600 }
601 if (header->http.num_data_items != 3)
602 {
603 ERR("invalid number of data items %d\n", header->http.num_data_items);
604 return RPC_S_PROTOCOL_ERROR;
605 }
606
607 type = READ_HTTP_PAYLOAD_FIELD_TYPE(data);
608 if (type != 0x00000006)
609 {
610 ERR("invalid type for field 1: 0x%08x\n", type);
611 return RPC_S_PROTOCOL_ERROR;
612 }
613 *field1 = *(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data);
614 data = RPCRT4_NextHttpHeaderField(data);
615
616 type = READ_HTTP_PAYLOAD_FIELD_TYPE(data);
617 if (type != 0x00000000)
618 {
619 ERR("invalid type for field 2: 0x%08x\n", type);
620 return RPC_S_PROTOCOL_ERROR;
621 }
622 *bytes_until_next_packet = *(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data);
623 data = RPCRT4_NextHttpHeaderField(data);
624
625 type = READ_HTTP_PAYLOAD_FIELD_TYPE(data);
626 if (type != 0x00000002)
627 {
628 ERR("invalid type for field 3: 0x%08x\n", type);
629 return RPC_S_PROTOCOL_ERROR;
630 }
631 *field3 = *(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data);
632
633 return RPC_S_OK;
634 }
635
636 RPC_STATUS RPCRT4_ParseHttpFlowControlHeader(RpcPktHdr *header,
637 unsigned char *data, BOOL server,
638 ULONG *bytes_transmitted,
639 ULONG *flow_control_increment,
640 UUID *pipe_uuid)
641 {
642 ULONG type;
643 if (header->http.flags != 0x2)
644 {
645 ERR("invalid flags 0x%x\n", header->http.flags);
646 return RPC_S_PROTOCOL_ERROR;
647 }
648 if (header->http.num_data_items != 2)
649 {
650 ERR("invalid number of data items %d\n", header->http.num_data_items);
651 return RPC_S_PROTOCOL_ERROR;
652 }
653
654 type = READ_HTTP_PAYLOAD_FIELD_TYPE(data);
655 if (type != 0x0000000d)
656 {
657 ERR("invalid type for field 1: 0x%08x\n", type);
658 return RPC_S_PROTOCOL_ERROR;
659 }
660 if (*(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data) != (server ? 0x3 : 0x0))
661 {
662 ERR("invalid type for 0xd field data: 0x%08x\n", *(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data));
663 return RPC_S_PROTOCOL_ERROR;
664 }
665 data = RPCRT4_NextHttpHeaderField(data);
666
667 type = READ_HTTP_PAYLOAD_FIELD_TYPE(data);
668 if (type != 0x00000001)
669 {
670 ERR("invalid type for field 2: 0x%08x\n", type);
671 return RPC_S_PROTOCOL_ERROR;
672 }
673 *bytes_transmitted = *(ULONG *)GET_HTTP_PAYLOAD_FIELD_DATA(data);
674 *flow_control_increment = *(ULONG *)(GET_HTTP_PAYLOAD_FIELD_DATA(data) + 4);
675 *pipe_uuid = *(UUID *)(GET_HTTP_PAYLOAD_FIELD_DATA(data) + 8);
676
677 return RPC_S_OK;
678 }
679
680
681 RPC_STATUS RPCRT4_default_secure_packet(RpcConnection *Connection,
682 enum secure_packet_direction dir,
683 RpcPktHdr *hdr, unsigned int hdr_size,
684 unsigned char *stub_data, unsigned int stub_data_size,
685 RpcAuthVerifier *auth_hdr,
686 unsigned char *auth_value, unsigned int auth_value_size)
687 {
688 SecBufferDesc message;
689 SecBuffer buffers[4];
690 SECURITY_STATUS sec_status;
691
692 message.ulVersion = SECBUFFER_VERSION;
693 message.cBuffers = sizeof(buffers)/sizeof(buffers[0]);
694 message.pBuffers = buffers;
695
696 buffers[0].cbBuffer = hdr_size;
697 buffers[0].BufferType = SECBUFFER_DATA|SECBUFFER_READONLY_WITH_CHECKSUM;
698 buffers[0].pvBuffer = hdr;
699 buffers[1].cbBuffer = stub_data_size;
700 buffers[1].BufferType = SECBUFFER_DATA;
701 buffers[1].pvBuffer = stub_data;
702 buffers[2].cbBuffer = sizeof(*auth_hdr);
703 buffers[2].BufferType = SECBUFFER_DATA|SECBUFFER_READONLY_WITH_CHECKSUM;
704 buffers[2].pvBuffer = auth_hdr;
705 buffers[3].cbBuffer = auth_value_size;
706 buffers[3].BufferType = SECBUFFER_TOKEN;
707 buffers[3].pvBuffer = auth_value;
708
709 if (dir == SECURE_PACKET_SEND)
710 {
711 if ((auth_hdr->auth_level == RPC_C_AUTHN_LEVEL_PKT_PRIVACY) && packet_has_body(hdr))
712 {
713 sec_status = EncryptMessage(&Connection->ctx, 0, &message, 0 /* FIXME */);
714 if (sec_status != SEC_E_OK)
715 {
716 ERR("EncryptMessage failed with 0x%08x\n", sec_status);
717 return RPC_S_SEC_PKG_ERROR;
718 }
719 }
720 else if (auth_hdr->auth_level != RPC_C_AUTHN_LEVEL_NONE)
721 {
722 sec_status = MakeSignature(&Connection->ctx, 0, &message, 0 /* FIXME */);
723 if (sec_status != SEC_E_OK)
724 {
725 ERR("MakeSignature failed with 0x%08x\n", sec_status);
726 return RPC_S_SEC_PKG_ERROR;
727 }
728 }
729 }
730 else if (dir == SECURE_PACKET_RECEIVE)
731 {
732 if ((auth_hdr->auth_level == RPC_C_AUTHN_LEVEL_PKT_PRIVACY) && packet_has_body(hdr))
733 {
734 sec_status = DecryptMessage(&Connection->ctx, &message, 0 /* FIXME */, 0);
735 if (sec_status != SEC_E_OK)
736 {
737 ERR("DecryptMessage failed with 0x%08x\n", sec_status);
738 return RPC_S_SEC_PKG_ERROR;
739 }
740 }
741 else if (auth_hdr->auth_level != RPC_C_AUTHN_LEVEL_NONE)
742 {
743 sec_status = VerifySignature(&Connection->ctx, &message, 0 /* FIXME */, NULL);
744 if (sec_status != SEC_E_OK)
745 {
746 ERR("VerifySignature failed with 0x%08x\n", sec_status);
747 return RPC_S_SEC_PKG_ERROR;
748 }
749 }
750 }
751
752 return RPC_S_OK;
753 }
754
755 /***********************************************************************
756 * RPCRT4_SendWithAuth (internal)
757 *
758 * Transmit a packet with authorization data over connection in acceptable fragments.
759 */
760 RPC_STATUS RPCRT4_SendWithAuth(RpcConnection *Connection, RpcPktHdr *Header,
761 void *Buffer, unsigned int BufferLength,
762 const void *Auth, unsigned int AuthLength)
763 {
764 PUCHAR buffer_pos;
765 DWORD hdr_size;
766 LONG count;
767 unsigned char *pkt;
768 LONG alen;
769 RPC_STATUS status;
770
771 RPCRT4_SetThreadCurrentConnection(Connection);
772
773 buffer_pos = Buffer;
774 /* The packet building functions save the packet header size, so we can use it. */
775 hdr_size = Header->common.frag_len;
776 if (AuthLength)
777 Header->common.auth_len = AuthLength;
778 else if (Connection->AuthInfo && packet_has_auth_verifier(Header))
779 {
780 if ((Connection->AuthInfo->AuthnLevel == RPC_C_AUTHN_LEVEL_PKT_PRIVACY) && packet_has_body(Header))
781 Header->common.auth_len = Connection->encryption_auth_len;
782 else
783 Header->common.auth_len = Connection->signature_auth_len;
784 }
785 else
786 Header->common.auth_len = 0;
787 Header->common.flags |= RPC_FLG_FIRST;
788 Header->common.flags &= ~RPC_FLG_LAST;
789
790 alen = RPC_AUTH_VERIFIER_LEN(&Header->common);
791
792 while (!(Header->common.flags & RPC_FLG_LAST)) {
793 unsigned char auth_pad_len = Header->common.auth_len ? ROUND_UP_AMOUNT(BufferLength, AUTH_ALIGNMENT) : 0;
794 unsigned int pkt_size = BufferLength + hdr_size + alen + auth_pad_len;
795
796 /* decide if we need to split the packet into fragments */
797 if (pkt_size <= Connection->MaxTransmissionSize) {
798 Header->common.flags |= RPC_FLG_LAST;
799 Header->common.frag_len = pkt_size;
800 } else {
801 auth_pad_len = 0;
802 /* make sure packet payload will be a multiple of 16 */
803 Header->common.frag_len =
804 ((Connection->MaxTransmissionSize - hdr_size - alen) & ~(AUTH_ALIGNMENT-1)) +
805 hdr_size + alen;
806 }
807
808 pkt = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, Header->common.frag_len);
809
810 memcpy(pkt, Header, hdr_size);
811
812 /* fragment consisted of header only and is the last one */
813 if (hdr_size == Header->common.frag_len)
814 goto write;
815
816 memcpy(pkt + hdr_size, buffer_pos, Header->common.frag_len - hdr_size - auth_pad_len - alen);
817
818 /* add the authorization info */
819 if (Header->common.auth_len)
820 {
821 RpcAuthVerifier *auth_hdr = (RpcAuthVerifier *)&pkt[Header->common.frag_len - alen];
822
823 auth_hdr->auth_type = Connection->AuthInfo->AuthnSvc;
824 auth_hdr->auth_level = Connection->AuthInfo->AuthnLevel;
825 auth_hdr->auth_pad_length = auth_pad_len;
826 auth_hdr->auth_reserved = 0;
827 /* a unique number... */
828 auth_hdr->auth_context_id = Connection->auth_context_id;
829
830 if (AuthLength)
831 memcpy(auth_hdr + 1, Auth, AuthLength);
832 else
833 {
834 status = rpcrt4_conn_secure_packet(Connection, SECURE_PACKET_SEND,
835 (RpcPktHdr *)pkt, hdr_size,
836 pkt + hdr_size, Header->common.frag_len - hdr_size - alen,
837 auth_hdr,
838 (unsigned char *)(auth_hdr + 1), Header->common.auth_len);
839 if (status != RPC_S_OK)
840 {
841 HeapFree(GetProcessHeap(), 0, pkt);
842 RPCRT4_SetThreadCurrentConnection(NULL);
843 return status;
844 }
845 }
846 }
847
848 write:
849 count = rpcrt4_conn_write(Connection, pkt, Header->common.frag_len);
850 HeapFree(GetProcessHeap(), 0, pkt);
851 if (count<0) {
852 WARN("rpcrt4_conn_write failed (auth)\n");
853 RPCRT4_SetThreadCurrentConnection(NULL);
854 return RPC_S_CALL_FAILED;
855 }
856
857 buffer_pos += Header->common.frag_len - hdr_size - alen - auth_pad_len;
858 BufferLength -= Header->common.frag_len - hdr_size - alen - auth_pad_len;
859 Header->common.flags &= ~RPC_FLG_FIRST;
860 }
861
862 RPCRT4_SetThreadCurrentConnection(NULL);
863 return RPC_S_OK;
864 }
865
866 /***********************************************************************
867 * RPCRT4_default_authorize (internal)
868 *
869 * Authorize a client connection.
870 */
871 RPC_STATUS RPCRT4_default_authorize(RpcConnection *conn, BOOL first_time,
872 unsigned char *in_buffer,
873 unsigned int in_size,
874 unsigned char *out_buffer,
875 unsigned int *out_size)
876 {
877 SECURITY_STATUS r;
878 SecBufferDesc out_desc;
879 SecBufferDesc inp_desc;
880 SecPkgContext_Sizes secctx_sizes;
881 BOOL continue_needed;
882 ULONG context_req;
883 SecBuffer in, out;
884
885 if (!out_buffer)
886 {
887 *out_size = conn->AuthInfo->cbMaxToken;
888 return RPC_S_OK;
889 }
890
891 in.BufferType = SECBUFFER_TOKEN;
892 in.pvBuffer = in_buffer;
893 in.cbBuffer = in_size;
894
895 out.BufferType = SECBUFFER_TOKEN;
896 out.pvBuffer = out_buffer;
897 out.cbBuffer = *out_size;
898
899 out_desc.ulVersion = 0;
900 out_desc.cBuffers = 1;
901 out_desc.pBuffers = &out;
902
903 inp_desc.ulVersion = 0;
904 inp_desc.cBuffers = 1;
905 inp_desc.pBuffers = &in;
906
907 if (conn->server)
908 {
909 context_req = ASC_REQ_CONNECTION | ASC_REQ_USE_DCE_STYLE |
910 ASC_REQ_DELEGATE;
911
912 if (conn->AuthInfo->AuthnLevel == RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
913 context_req |= ASC_REQ_INTEGRITY;
914 else if (conn->AuthInfo->AuthnLevel == RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
915 context_req |= ASC_REQ_CONFIDENTIALITY | ASC_REQ_INTEGRITY;
916
917 r = AcceptSecurityContext(&conn->AuthInfo->cred,
918 first_time ? NULL : &conn->ctx,
919 &inp_desc, context_req, SECURITY_NETWORK_DREP,
920 &conn->ctx,
921 &out_desc, &conn->attr, &conn->exp);
922 if (r == SEC_E_OK || r == SEC_I_COMPLETE_NEEDED)
923 {
924 /* authorisation done, so nothing more to send */
925 out.cbBuffer = 0;
926 }
927 }
928 else
929 {
930 context_req = ISC_REQ_CONNECTION | ISC_REQ_USE_DCE_STYLE |
931 ISC_REQ_MUTUAL_AUTH | ISC_REQ_DELEGATE;
932
933 if (conn->AuthInfo->AuthnLevel == RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
934 context_req |= ISC_REQ_INTEGRITY;
935 else if (conn->AuthInfo->AuthnLevel == RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
936 context_req |= ISC_REQ_CONFIDENTIALITY | ISC_REQ_INTEGRITY;
937
938 r = InitializeSecurityContextW(&conn->AuthInfo->cred,
939 first_time ? NULL: &conn->ctx,
940 first_time ? conn->AuthInfo->server_principal_name : NULL,
941 context_req, 0, SECURITY_NETWORK_DREP,
942 first_time ? NULL : &inp_desc, 0, &conn->ctx,
943 &out_desc, &conn->attr, &conn->exp);
944 }
945 if (FAILED(r))
946 {
947 WARN("InitializeSecurityContext failed with error 0x%08x\n", r);
948 goto failed;
949 }
950
951 TRACE("r = 0x%08x, attr = 0x%08x\n", r, conn->attr);
952 continue_needed = ((r == SEC_I_CONTINUE_NEEDED) ||
953 (r == SEC_I_COMPLETE_AND_CONTINUE));
954
955 if ((r == SEC_I_COMPLETE_NEEDED) || (r == SEC_I_COMPLETE_AND_CONTINUE))
956 {
957 TRACE("complete needed\n");
958 r = CompleteAuthToken(&conn->ctx, &out_desc);
959 if (FAILED(r))
960 {
961 WARN("CompleteAuthToken failed with error 0x%08x\n", r);
962 goto failed;
963 }
964 }
965
966 TRACE("cbBuffer = %d\n", out.cbBuffer);
967
968 if (!continue_needed)
969 {
970 r = QueryContextAttributesA(&conn->ctx, SECPKG_ATTR_SIZES, &secctx_sizes);
971 if (FAILED(r))
972 {
973 WARN("QueryContextAttributes failed with error 0x%08x\n", r);
974 goto failed;
975 }
976 conn->signature_auth_len = secctx_sizes.cbMaxSignature;
977 conn->encryption_auth_len = secctx_sizes.cbSecurityTrailer;
978 }
979
980 *out_size = out.cbBuffer;
981 return RPC_S_OK;
982
983 failed:
984 *out_size = 0;
985 return ERROR_ACCESS_DENIED; /* FIXME: is this correct? */
986 }
987
988 /***********************************************************************
989 * RPCRT4_ClientConnectionAuth (internal)
990 */
991 RPC_STATUS RPCRT4_ClientConnectionAuth(RpcConnection* conn, BYTE *challenge,
992 ULONG count)
993 {
994 RpcPktHdr *resp_hdr;
995 RPC_STATUS status;
996 unsigned char *out_buffer;
997 unsigned int out_len = 0;
998
999 TRACE("challenge %s, %d bytes\n", challenge, count);
1000
1001 status = rpcrt4_conn_authorize(conn, FALSE, challenge, count, NULL, &out_len);
1002 if (status) return status;
1003 out_buffer = HeapAlloc(GetProcessHeap(), 0, out_len);
1004 if (!out_buffer) return RPC_S_OUT_OF_RESOURCES;
1005 status = rpcrt4_conn_authorize(conn, FALSE, challenge, count, out_buffer, &out_len);
1006 if (status) return status;
1007
1008 resp_hdr = RPCRT4_BuildAuthHeader(NDR_LOCAL_DATA_REPRESENTATION);
1009
1010 if (resp_hdr)
1011 status = RPCRT4_SendWithAuth(conn, resp_hdr, NULL, 0, out_buffer, out_len);
1012 else
1013 status = RPC_S_OUT_OF_RESOURCES;
1014
1015 HeapFree(GetProcessHeap(), 0, out_buffer);
1016 RPCRT4_FreeHeader(resp_hdr);
1017
1018 return status;
1019 }
1020
1021 /***********************************************************************
1022 * RPCRT4_ServerConnectionAuth (internal)
1023 */
1024 RPC_STATUS RPCRT4_ServerConnectionAuth(RpcConnection* conn,
1025 BOOL start,
1026 RpcAuthVerifier *auth_data_in,
1027 ULONG auth_length_in,
1028 unsigned char **auth_data_out,
1029 ULONG *auth_length_out)
1030 {
1031 unsigned char *out_buffer;
1032 unsigned int out_size;
1033 RPC_STATUS status;
1034
1035 if (start)
1036 {
1037 /* remove any existing authentication information */
1038 if (conn->AuthInfo)
1039 {
1040 RpcAuthInfo_Release(conn->AuthInfo);
1041 conn->AuthInfo = NULL;
1042 }
1043 if (SecIsValidHandle(&conn->ctx))
1044 {
1045 DeleteSecurityContext(&conn->ctx);
1046 SecInvalidateHandle(&conn->ctx);
1047 }
1048 if (auth_length_in >= sizeof(RpcAuthVerifier))
1049 {
1050 CredHandle cred;
1051 TimeStamp exp;
1052 ULONG max_token;
1053
1054 status = RPCRT4_ServerGetRegisteredAuthInfo(
1055 auth_data_in->auth_type, &cred, &exp, &max_token);
1056 if (status != RPC_S_OK)
1057 {
1058 ERR("unknown authentication service %u\n", auth_data_in->auth_type);
1059 return status;
1060 }
1061
1062 status = RpcAuthInfo_Create(auth_data_in->auth_level,
1063 auth_data_in->auth_type, cred, exp,
1064 max_token, NULL, &conn->AuthInfo);
1065 if (status != RPC_S_OK)
1066 return status;
1067
1068 /* FIXME: should auth_data_in->auth_context_id be checked in the !start case? */
1069 conn->auth_context_id = auth_data_in->auth_context_id;
1070 }
1071 }
1072
1073 if (auth_length_in < sizeof(RpcAuthVerifier))
1074 return RPC_S_OK;
1075
1076 if (!conn->AuthInfo)
1077 /* should have filled in authentication info by now */
1078 return RPC_S_PROTOCOL_ERROR;
1079
1080 status = rpcrt4_conn_authorize(
1081 conn, start, (unsigned char *)(auth_data_in + 1),
1082 auth_length_in - sizeof(RpcAuthVerifier), NULL, &out_size);
1083 if (status) return status;
1084
1085 out_buffer = HeapAlloc(GetProcessHeap(), 0, out_size);
1086 if (!out_buffer) return RPC_S_OUT_OF_RESOURCES;
1087
1088 status = rpcrt4_conn_authorize(
1089 conn, start, (unsigned char *)(auth_data_in + 1),
1090 auth_length_in - sizeof(RpcAuthVerifier), out_buffer, &out_size);
1091 if (status != RPC_S_OK)
1092 {
1093 HeapFree(GetProcessHeap(), 0, out_buffer);
1094 return status;
1095 }
1096
1097 if (out_size && !auth_length_out)
1098 {
1099 ERR("expected authentication to be complete but SSP returned data of "
1100 "%u bytes to be sent back to client\n", out_size);
1101 HeapFree(GetProcessHeap(), 0, out_buffer);
1102 return RPC_S_SEC_PKG_ERROR;
1103 }
1104 else
1105 {
1106 *auth_data_out = out_buffer;
1107 *auth_length_out = out_size;
1108 }
1109
1110 return status;
1111 }
1112
1113 /***********************************************************************
1114 * RPCRT4_default_is_authorized (internal)
1115 *
1116 * Has a connection started the process of authorizing with the server?
1117 */
1118 BOOL RPCRT4_default_is_authorized(RpcConnection *Connection)
1119 {
1120 return Connection->AuthInfo && SecIsValidHandle(&Connection->ctx);
1121 }
1122
1123 /***********************************************************************
1124 * RPCRT4_default_impersonate_client (internal)
1125 *
1126 */
1127 RPC_STATUS RPCRT4_default_impersonate_client(RpcConnection *conn)
1128 {
1129 SECURITY_STATUS sec_status;
1130
1131 TRACE("(%p)\n", conn);
1132
1133 if (!conn->AuthInfo || !SecIsValidHandle(&conn->ctx))
1134 return RPC_S_NO_CONTEXT_AVAILABLE;
1135 sec_status = ImpersonateSecurityContext(&conn->ctx);
1136 if (sec_status != SEC_E_OK)
1137 WARN("ImpersonateSecurityContext returned 0x%08x\n", sec_status);
1138 switch (sec_status)
1139 {
1140 case SEC_E_UNSUPPORTED_FUNCTION:
1141 return RPC_S_CANNOT_SUPPORT;
1142 case SEC_E_NO_IMPERSONATION:
1143 return RPC_S_NO_CONTEXT_AVAILABLE;
1144 case SEC_E_OK:
1145 return RPC_S_OK;
1146 default:
1147 return RPC_S_SEC_PKG_ERROR;
1148 }
1149 }
1150
1151 /***********************************************************************
1152 * RPCRT4_default_revert_to_self (internal)
1153 *
1154 */
1155 RPC_STATUS RPCRT4_default_revert_to_self(RpcConnection *conn)
1156 {
1157 SECURITY_STATUS sec_status;
1158
1159 TRACE("(%p)\n", conn);
1160
1161 if (!conn->AuthInfo || !SecIsValidHandle(&conn->ctx))
1162 return RPC_S_NO_CONTEXT_AVAILABLE;
1163 sec_status = RevertSecurityContext(&conn->ctx);
1164 if (sec_status != SEC_E_OK)
1165 WARN("RevertSecurityContext returned 0x%08x\n", sec_status);
1166 switch (sec_status)
1167 {
1168 case SEC_E_UNSUPPORTED_FUNCTION:
1169 return RPC_S_CANNOT_SUPPORT;
1170 case SEC_E_NO_IMPERSONATION:
1171 return RPC_S_NO_CONTEXT_AVAILABLE;
1172 case SEC_E_OK:
1173 return RPC_S_OK;
1174 default:
1175 return RPC_S_SEC_PKG_ERROR;
1176 }
1177 }
1178
1179 /***********************************************************************
1180 * RPCRT4_default_inquire_auth_client (internal)
1181 *
1182 * Default function to retrieve the authentication details that the client
1183 * is using to call the server.
1184 */
1185 RPC_STATUS RPCRT4_default_inquire_auth_client(
1186 RpcConnection *conn, RPC_AUTHZ_HANDLE *privs, RPC_WSTR *server_princ_name,
1187 ULONG *authn_level, ULONG *authn_svc, ULONG *authz_svc, ULONG flags)
1188 {
1189 if (!conn->AuthInfo) return RPC_S_BINDING_HAS_NO_AUTH;
1190
1191 if (privs)
1192 {
1193 FIXME("privs not implemented\n");
1194 *privs = NULL;
1195 }
1196 if (server_princ_name)
1197 {
1198 *server_princ_name = RPCRT4_strdupW(conn->AuthInfo->server_principal_name);
1199 if (!*server_princ_name) return ERROR_OUTOFMEMORY;
1200 }
1201 if (authn_level) *authn_level = conn->AuthInfo->AuthnLevel;
1202 if (authn_svc) *authn_svc = conn->AuthInfo->AuthnSvc;
1203 if (authz_svc)
1204 {
1205 FIXME("authorization service not implemented\n");
1206 *authz_svc = RPC_C_AUTHZ_NONE;
1207 }
1208 if (flags)
1209 FIXME("flags 0x%x not implemented\n", flags);
1210
1211 return RPC_S_OK;
1212 }
1213
1214 /***********************************************************************
1215 * RPCRT4_Send (internal)
1216 *
1217 * Transmit a packet over connection in acceptable fragments.
1218 */
1219 RPC_STATUS RPCRT4_Send(RpcConnection *Connection, RpcPktHdr *Header,
1220 void *Buffer, unsigned int BufferLength)
1221 {
1222 RPC_STATUS r;
1223
1224 if (packet_does_auth_negotiation(Header) &&
1225 Connection->AuthInfo &&
1226 !rpcrt4_conn_is_authorized(Connection))
1227 {
1228 unsigned int out_size = 0;
1229 unsigned char *out_buffer;
1230
1231 r = rpcrt4_conn_authorize(Connection, TRUE, NULL, 0, NULL, &out_size);
1232 if (r != RPC_S_OK) return r;
1233
1234 out_buffer = HeapAlloc(GetProcessHeap(), 0, out_size);
1235 if (!out_buffer) return RPC_S_OUT_OF_RESOURCES;
1236
1237 /* tack on a negotiate packet */
1238 r = rpcrt4_conn_authorize(Connection, TRUE, NULL, 0, out_buffer, &out_size);
1239 if (r == RPC_S_OK)
1240 r = RPCRT4_SendWithAuth(Connection, Header, Buffer, BufferLength, out_buffer, out_size);
1241
1242 HeapFree(GetProcessHeap(), 0, out_buffer);
1243 }
1244 else
1245 r = RPCRT4_SendWithAuth(Connection, Header, Buffer, BufferLength, NULL, 0);
1246
1247 return r;
1248 }
1249
1250 /* validates version and frag_len fields */
1251 RPC_STATUS RPCRT4_ValidateCommonHeader(const RpcPktCommonHdr *hdr)
1252 {
1253 DWORD hdr_length;
1254
1255 /* verify if the header really makes sense */
1256 if (hdr->rpc_ver != RPC_VER_MAJOR ||
1257 hdr->rpc_ver_minor != RPC_VER_MINOR)
1258 {
1259 WARN("unhandled packet version\n");
1260 return RPC_S_PROTOCOL_ERROR;
1261 }
1262
1263 hdr_length = RPCRT4_GetHeaderSize((const RpcPktHdr*)hdr);
1264 if (hdr_length == 0)
1265 {
1266 WARN("header length == 0\n");
1267 return RPC_S_PROTOCOL_ERROR;
1268 }
1269
1270 if (hdr->frag_len < hdr_length)
1271 {
1272 WARN("bad frag length %d\n", hdr->frag_len);
1273 return RPC_S_PROTOCOL_ERROR;
1274 }
1275
1276 return RPC_S_OK;
1277 }
1278
1279 /***********************************************************************
1280 * RPCRT4_default_receive_fragment (internal)
1281 *
1282 * Receive a fragment from a connection.
1283 */
1284 static RPC_STATUS RPCRT4_default_receive_fragment(RpcConnection *Connection, RpcPktHdr **Header, void **Payload)
1285 {
1286 RPC_STATUS status;
1287 DWORD hdr_length;
1288 LONG dwRead;
1289 RpcPktCommonHdr common_hdr;
1290
1291 *Header = NULL;
1292 *Payload = NULL;
1293
1294 TRACE("(%p, %p, %p)\n", Connection, Header, Payload);
1295
1296 /* read packet common header */
1297 dwRead = rpcrt4_conn_read(Connection, &common_hdr, sizeof(common_hdr));
1298 if (dwRead != sizeof(common_hdr)) {
1299 WARN("Short read of header, %d bytes\n", dwRead);
1300 status = RPC_S_CALL_FAILED;
1301 goto fail;
1302 }
1303
1304 status = RPCRT4_ValidateCommonHeader(&common_hdr);
1305 if (status != RPC_S_OK) goto fail;
1306
1307 hdr_length = RPCRT4_GetHeaderSize((RpcPktHdr*)&common_hdr);
1308 if (hdr_length == 0) {
1309 WARN("header length == 0\n");
1310 status = RPC_S_PROTOCOL_ERROR;
1311 goto fail;
1312 }
1313
1314 *Header = HeapAlloc(GetProcessHeap(), 0, hdr_length);
1315 memcpy(*Header, &common_hdr, sizeof(common_hdr));
1316
1317 /* read the rest of packet header */
1318 dwRead = rpcrt4_conn_read(Connection, &(*Header)->common + 1, hdr_length - sizeof(common_hdr));
1319 if (dwRead != hdr_length - sizeof(common_hdr)) {
1320 WARN("bad header length, %d bytes, hdr_length %d\n", dwRead, hdr_length);
1321 status = RPC_S_CALL_FAILED;
1322 goto fail;
1323 }
1324
1325 if (common_hdr.frag_len - hdr_length)
1326 {
1327 *Payload = HeapAlloc(GetProcessHeap(), 0, common_hdr.frag_len - hdr_length);
1328 if (!*Payload)
1329 {
1330 status = RPC_S_OUT_OF_RESOURCES;
1331 goto fail;
1332 }
1333
1334 dwRead = rpcrt4_conn_read(Connection, *Payload, common_hdr.frag_len - hdr_length);
1335 if (dwRead != common_hdr.frag_len - hdr_length)
1336 {
1337 WARN("bad data length, %d/%d\n", dwRead, common_hdr.frag_len - hdr_length);
1338 status = RPC_S_CALL_FAILED;
1339 goto fail;
1340 }
1341 }
1342 else
1343 *Payload = NULL;
1344
1345 /* success */
1346 status = RPC_S_OK;
1347
1348 fail:
1349 if (status != RPC_S_OK) {
1350 RPCRT4_FreeHeader(*Header);
1351 *Header = NULL;
1352 HeapFree(GetProcessHeap(), 0, *Payload);
1353 *Payload = NULL;
1354 }
1355 return status;
1356 }
1357
1358 static RPC_STATUS RPCRT4_receive_fragment(RpcConnection *Connection, RpcPktHdr **Header, void **Payload)
1359 {
1360 if (Connection->ops->receive_fragment)
1361 return Connection->ops->receive_fragment(Connection, Header, Payload);
1362 else
1363 return RPCRT4_default_receive_fragment(Connection, Header, Payload);
1364 }
1365
1366 /***********************************************************************
1367 * RPCRT4_ReceiveWithAuth (internal)
1368 *
1369 * Receive a packet from connection, merge the fragments and return the auth
1370 * data.
1371 */
1372 RPC_STATUS RPCRT4_ReceiveWithAuth(RpcConnection *Connection, RpcPktHdr **Header,
1373 PRPC_MESSAGE pMsg,
1374 unsigned char **auth_data_out,
1375 ULONG *auth_length_out)
1376 {
1377 RPC_STATUS status;
1378 DWORD hdr_length;
1379 unsigned short first_flag;
1380 ULONG data_length;
1381 ULONG buffer_length;
1382 ULONG auth_length = 0;
1383 unsigned char *auth_data = NULL;
1384 RpcPktHdr *CurrentHeader = NULL;
1385 void *payload = NULL;
1386
1387 *Header = NULL;
1388 pMsg->Buffer = NULL;
1389 if (auth_data_out) *auth_data_out = NULL;
1390 if (auth_length_out) *auth_length_out = 0;
1391
1392 TRACE("(%p, %p, %p, %p)\n", Connection, Header, pMsg, auth_data_out);
1393
1394 RPCRT4_SetThreadCurrentConnection(Connection);
1395
1396 status = RPCRT4_receive_fragment(Connection, Header, &payload);
1397 if (status != RPC_S_OK) goto fail;
1398
1399 hdr_length = RPCRT4_GetHeaderSize(*Header);
1400
1401 /* read packet body */
1402 switch ((*Header)->common.ptype) {
1403 case PKT_RESPONSE:
1404 pMsg->BufferLength = (*Header)->response.alloc_hint;
1405 break;
1406 case PKT_REQUEST:
1407 pMsg->BufferLength = (*Header)->request.alloc_hint;
1408 break;
1409 default:
1410 pMsg->BufferLength = (*Header)->common.frag_len - hdr_length - RPC_AUTH_VERIFIER_LEN(&(*Header)->common);
1411 }
1412
1413 TRACE("buffer length = %u\n", pMsg->BufferLength);
1414
1415 pMsg->Buffer = I_RpcAllocate(pMsg->BufferLength);
1416 if (!pMsg->Buffer)
1417 {
1418 status = ERROR_OUTOFMEMORY;
1419 goto fail;
1420 }
1421
1422 first_flag = RPC_FLG_FIRST;
1423 auth_length = (*Header)->common.auth_len;
1424 if (auth_length) {
1425 auth_data = HeapAlloc(GetProcessHeap(), 0, RPC_AUTH_VERIFIER_LEN(&(*Header)->common));
1426 if (!auth_data) {
1427 status = RPC_S_OUT_OF_RESOURCES;
1428 goto fail;
1429 }
1430 }
1431 CurrentHeader = *Header;
1432 buffer_length = 0;
1433 while (TRUE)
1434 {
1435 unsigned int header_auth_len = RPC_AUTH_VERIFIER_LEN(&CurrentHeader->common);
1436
1437 /* verify header fields */
1438
1439 if ((CurrentHeader->common.frag_len < hdr_length) ||
1440 (CurrentHeader->common.frag_len - hdr_length < header_auth_len)) {
1441 WARN("frag_len %d too small for hdr_length %d and auth_len %d\n",
1442 CurrentHeader->common.frag_len, hdr_length, CurrentHeader->common.auth_len);
1443 status = RPC_S_PROTOCOL_ERROR;
1444 goto fail;
1445 }
1446
1447 if (CurrentHeader->common.auth_len != auth_length) {
1448 WARN("auth_len header field changed from %d to %d\n",
1449 auth_length, CurrentHeader->common.auth_len);
1450 status = RPC_S_PROTOCOL_ERROR;
1451 goto fail;
1452 }
1453
1454 if ((CurrentHeader->common.flags & RPC_FLG_FIRST) != first_flag) {
1455 TRACE("invalid packet flags\n");
1456 status = RPC_S_PROTOCOL_ERROR;
1457 goto fail;
1458 }
1459
1460 data_length = CurrentHeader->common.frag_len - hdr_length - header_auth_len;
1461 if (data_length + buffer_length > pMsg->BufferLength) {
1462 TRACE("allocation hint exceeded, new buffer length = %d\n",
1463 data_length + buffer_length);
1464 pMsg->BufferLength = data_length + buffer_length;
1465 status = I_RpcReAllocateBuffer(pMsg);
1466 if (status != RPC_S_OK) goto fail;
1467 }
1468
1469 memcpy((unsigned char *)pMsg->Buffer + buffer_length, payload, data_length);
1470
1471 if (header_auth_len) {
1472 if (header_auth_len < sizeof(RpcAuthVerifier) ||
1473 header_auth_len > RPC_AUTH_VERIFIER_LEN(&(*Header)->common)) {
1474 WARN("bad auth verifier length %d\n", header_auth_len);
1475 status = RPC_S_PROTOCOL_ERROR;
1476 goto fail;
1477 }
1478
1479 /* FIXME: we should accumulate authentication data for the bind,
1480 * bind_ack, alter_context and alter_context_response if necessary.
1481 * however, the details of how this is done is very sketchy in the
1482 * DCE/RPC spec. for all other packet types that have authentication
1483 * verifier data then it is just duplicated in all the fragments */
1484 memcpy(auth_data, (unsigned char *)payload + data_length, header_auth_len);
1485
1486 /* these packets are handled specially, not by the generic SecurePacket
1487 * function */
1488 if (!packet_does_auth_negotiation(*Header) && rpcrt4_conn_is_authorized(Connection))
1489 {
1490 status = rpcrt4_conn_secure_packet(Connection, SECURE_PACKET_RECEIVE,
1491 CurrentHeader, hdr_length,
1492 (unsigned char *)pMsg->Buffer + buffer_length, data_length,
1493 (RpcAuthVerifier *)auth_data,
1494 auth_data + sizeof(RpcAuthVerifier),
1495 header_auth_len - sizeof(RpcAuthVerifier));
1496 if (status != RPC_S_OK) goto fail;
1497 }
1498 }
1499
1500 buffer_length += data_length;
1501 if (!(CurrentHeader->common.flags & RPC_FLG_LAST)) {
1502 TRACE("next header\n");
1503
1504 if (*Header != CurrentHeader)
1505 {
1506 RPCRT4_FreeHeader(CurrentHeader);
1507 CurrentHeader = NULL;
1508 }
1509 HeapFree(GetProcessHeap(), 0, payload);
1510 payload = NULL;
1511
1512 status = RPCRT4_receive_fragment(Connection, &CurrentHeader, &payload);
1513 if (status != RPC_S_OK) goto fail;
1514
1515 first_flag = 0;
1516 } else {
1517 break;
1518 }
1519 }
1520 pMsg->BufferLength = buffer_length;
1521
1522 /* success */
1523 status = RPC_S_OK;
1524
1525 fail:
1526 RPCRT4_SetThreadCurrentConnection(NULL);
1527 if (CurrentHeader != *Header)
1528 RPCRT4_FreeHeader(CurrentHeader);
1529 if (status != RPC_S_OK) {
1530 I_RpcFree(pMsg->Buffer);
1531 pMsg->Buffer = NULL;
1532 RPCRT4_FreeHeader(*Header);
1533 *Header = NULL;
1534 }
1535 if (auth_data_out && status == RPC_S_OK) {
1536 *auth_length_out = auth_length;
1537 *auth_data_out = auth_data;
1538 }
1539 else
1540 HeapFree(GetProcessHeap(), 0, auth_data);
1541 HeapFree(GetProcessHeap(), 0, payload);
1542 return status;
1543 }
1544
1545 /***********************************************************************
1546 * RPCRT4_Receive (internal)
1547 *
1548 * Receive a packet from connection and merge the fragments.
1549 */
1550 static RPC_STATUS RPCRT4_Receive(RpcConnection *Connection, RpcPktHdr **Header,
1551 PRPC_MESSAGE pMsg)
1552 {
1553 return RPCRT4_ReceiveWithAuth(Connection, Header, pMsg, NULL, NULL);
1554 }
1555
1556 /***********************************************************************
1557 * I_RpcNegotiateTransferSyntax [RPCRT4.@]
1558 *
1559 * Negotiates the transfer syntax used by a client connection by connecting
1560 * to the server.
1561 *
1562 * PARAMS
1563 * pMsg [I] RPC Message structure.
1564 * pAsync [I] Asynchronous state to set.
1565 *
1566 * RETURNS
1567 * Success: RPC_S_OK.
1568 * Failure: Any error code.
1569 */
1570 RPC_STATUS WINAPI I_RpcNegotiateTransferSyntax(PRPC_MESSAGE pMsg)
1571 {
1572 RpcBinding* bind = pMsg->Handle;
1573 RpcConnection* conn;
1574 RPC_STATUS status = RPC_S_OK;
1575
1576 TRACE("(%p)\n", pMsg);
1577
1578 if (!bind || bind->server)
1579 {
1580 ERR("no binding\n");
1581 return RPC_S_INVALID_BINDING;
1582 }
1583
1584 /* if we already have a connection, we don't need to negotiate again */
1585 if (!pMsg->ReservedForRuntime)
1586 {
1587 RPC_CLIENT_INTERFACE *cif = pMsg->RpcInterfaceInformation;
1588 if (!cif) return RPC_S_INTERFACE_NOT_FOUND;
1589
1590 if (!bind->Endpoint || !bind->Endpoint[0])
1591 {
1592 TRACE("automatically resolving partially bound binding\n");
1593 status = RpcEpResolveBinding(bind, cif);
1594 if (status != RPC_S_OK) return status;
1595 }
1596
1597 status = RPCRT4_OpenBinding(bind, &conn, &cif->TransferSyntax,
1598 &cif->InterfaceId);
1599
1600 if (status == RPC_S_OK)
1601 {
1602 pMsg->ReservedForRuntime = conn;
1603 RPCRT4_AddRefBinding(bind);
1604 }
1605 }
1606
1607 return status;
1608 }
1609
1610 /***********************************************************************
1611 * I_RpcGetBuffer [RPCRT4.@]
1612 *
1613 * Allocates a buffer for use by I_RpcSend or I_RpcSendReceive and binds to the
1614 * server interface.
1615 *
1616 * PARAMS
1617 * pMsg [I/O] RPC message information.
1618 *
1619 * RETURNS
1620 * Success: RPC_S_OK.
1621 * Failure: RPC_S_INVALID_BINDING if pMsg->Handle is invalid.
1622 * RPC_S_SERVER_UNAVAILABLE if unable to connect to server.
1623 * ERROR_OUTOFMEMORY if buffer allocation failed.
1624 *
1625 * NOTES
1626 * The pMsg->BufferLength field determines the size of the buffer to allocate,
1627 * in bytes.
1628 *
1629 * Use I_RpcFreeBuffer() to unbind from the server and free the message buffer.
1630 *
1631 * SEE ALSO
1632 * I_RpcFreeBuffer(), I_RpcSend(), I_RpcReceive(), I_RpcSendReceive().
1633 */
1634 RPC_STATUS WINAPI I_RpcGetBuffer(PRPC_MESSAGE pMsg)
1635 {
1636 RPC_STATUS status;
1637 RpcBinding* bind = pMsg->Handle;
1638
1639 TRACE("(%p): BufferLength=%d\n", pMsg, pMsg->BufferLength);
1640
1641 if (!bind)
1642 {
1643 ERR("no binding\n");
1644 return RPC_S_INVALID_BINDING;
1645 }
1646
1647 pMsg->Buffer = I_RpcAllocate(pMsg->BufferLength);
1648 TRACE("Buffer=%p\n", pMsg->Buffer);
1649
1650 if (!pMsg->Buffer)
1651 return ERROR_OUTOFMEMORY;
1652
1653 if (!bind->server)
1654 {
1655 status = I_RpcNegotiateTransferSyntax(pMsg);
1656 if (status != RPC_S_OK)
1657 I_RpcFree(pMsg->Buffer);
1658 }
1659 else
1660 status = RPC_S_OK;
1661
1662 return status;
1663 }
1664
1665 /***********************************************************************
1666 * I_RpcReAllocateBuffer (internal)
1667 */
1668 static RPC_STATUS I_RpcReAllocateBuffer(PRPC_MESSAGE pMsg)
1669 {
1670 TRACE("(%p): BufferLength=%d\n", pMsg, pMsg->BufferLength);
1671 pMsg->Buffer = HeapReAlloc(GetProcessHeap(), 0, pMsg->Buffer, pMsg->BufferLength);
1672
1673 TRACE("Buffer=%p\n", pMsg->Buffer);
1674 return pMsg->Buffer ? RPC_S_OK : ERROR_OUTOFMEMORY;
1675 }
1676
1677 /***********************************************************************
1678 * I_RpcFreeBuffer [RPCRT4.@]
1679 *
1680 * Frees a buffer allocated by I_RpcGetBuffer or I_RpcReceive and unbinds from
1681 * the server interface.
1682 *
1683 * PARAMS
1684 * pMsg [I/O] RPC message information.
1685 *
1686 * RETURNS
1687 * RPC_S_OK.
1688 *
1689 * SEE ALSO
1690 * I_RpcGetBuffer(), I_RpcReceive().
1691 */
1692 RPC_STATUS WINAPI I_RpcFreeBuffer(PRPC_MESSAGE pMsg)
1693 {
1694 RpcBinding* bind = pMsg->Handle;
1695
1696 TRACE("(%p) Buffer=%p\n", pMsg, pMsg->Buffer);
1697
1698 if (!bind)
1699 {
1700 ERR("no binding\n");
1701 return RPC_S_INVALID_BINDING;
1702 }
1703
1704 if (pMsg->ReservedForRuntime)
1705 {
1706 RpcConnection *conn = pMsg->ReservedForRuntime;
1707 RPCRT4_CloseBinding(bind, conn);
1708 RPCRT4_ReleaseBinding(bind);
1709 pMsg->ReservedForRuntime = NULL;
1710 }
1711 I_RpcFree(pMsg->Buffer);
1712 return RPC_S_OK;
1713 }
1714
1715 static void CALLBACK async_apc_notifier_proc(ULONG_PTR ulParam)
1716 {
1717 RPC_ASYNC_STATE *state = (RPC_ASYNC_STATE *)ulParam;
1718 state->u.APC.NotificationRoutine(state, NULL, state->Event);
1719 }
1720
1721 static DWORD WINAPI async_notifier_proc(LPVOID p)
1722 {
1723 RpcConnection *conn = p;
1724 RPC_ASYNC_STATE *state = conn->async_state;
1725
1726 if (state && conn->ops->wait_for_incoming_data(conn) != -1)
1727 {
1728 state->Event = RpcCallComplete;
1729 switch (state->NotificationType)
1730 {
1731 case RpcNotificationTypeEvent:
1732 TRACE("RpcNotificationTypeEvent %p\n", state->u.hEvent);
1733 SetEvent(state->u.hEvent);
1734 break;
1735 case RpcNotificationTypeApc:
1736 TRACE("RpcNotificationTypeApc %p\n", state->u.APC.hThread);
1737 QueueUserAPC(async_apc_notifier_proc, state->u.APC.hThread, (ULONG_PTR)state);
1738 break;
1739 case RpcNotificationTypeIoc:
1740 TRACE("RpcNotificationTypeIoc %p, 0x%x, 0x%lx, %p\n",
1741 state->u.IOC.hIOPort, state->u.IOC.dwNumberOfBytesTransferred,
1742 state->u.IOC.dwCompletionKey, state->u.IOC.lpOverlapped);
1743 PostQueuedCompletionStatus(state->u.IOC.hIOPort,
1744 state->u.IOC.dwNumberOfBytesTransferred,
1745 state->u.IOC.dwCompletionKey,
1746 state->u.IOC.lpOverlapped);
1747 break;
1748 case RpcNotificationTypeHwnd:
1749 TRACE("RpcNotificationTypeHwnd %p 0x%x\n", state->u.HWND.hWnd,
1750 state->u.HWND.Msg);
1751 PostMessageW(state->u.HWND.hWnd, state->u.HWND.Msg, 0, 0);
1752 break;
1753 case RpcNotificationTypeCallback:
1754 TRACE("RpcNotificationTypeCallback %p\n", state->u.NotificationRoutine);
1755 state->u.NotificationRoutine(state, NULL, state->Event);
1756 break;
1757 case RpcNotificationTypeNone:
1758 TRACE("RpcNotificationTypeNone\n");
1759 break;
1760 default:
1761 FIXME("unknown NotificationType: %d/0x%x\n", state->NotificationType, state->NotificationType);
1762 break;
1763 }
1764 }
1765
1766 return 0;
1767 }
1768
1769 /***********************************************************************
1770 * I_RpcSend [RPCRT4.@]
1771 *
1772 * Sends a message to the server.
1773 *
1774 * PARAMS
1775 * pMsg [I/O] RPC message information.
1776 *
1777 * RETURNS
1778 * Unknown.
1779 *
1780 * NOTES
1781 * The buffer must have been allocated with I_RpcGetBuffer().
1782 *
1783 * SEE ALSO
1784 * I_RpcGetBuffer(), I_RpcReceive(), I_RpcSendReceive().
1785 */
1786 RPC_STATUS WINAPI I_RpcSend(PRPC_MESSAGE pMsg)
1787 {
1788 RpcBinding* bind = pMsg->Handle;
1789 RpcConnection* conn;
1790 RPC_STATUS status;
1791 RpcPktHdr *hdr;
1792
1793 TRACE("(%p)\n", pMsg);
1794 if (!bind || bind->server || !pMsg->ReservedForRuntime) return RPC_S_INVALID_BINDING;
1795
1796 conn = pMsg->ReservedForRuntime;
1797
1798 hdr = RPCRT4_BuildRequestHeader(pMsg->DataRepresentation,
1799 pMsg->BufferLength,
1800 pMsg->ProcNum & ~RPC_FLAGS_VALID_BIT,
1801 &bind->ObjectUuid);
1802 if (!hdr)
1803 return ERROR_OUTOFMEMORY;
1804 hdr->common.call_id = conn->NextCallId++;
1805
1806 status = RPCRT4_Send(conn, hdr, pMsg->Buffer, pMsg->BufferLength);
1807
1808 RPCRT4_FreeHeader(hdr);
1809
1810 if (status == RPC_S_OK && pMsg->RpcFlags & RPC_BUFFER_ASYNC)
1811 {
1812 if (!QueueUserWorkItem(async_notifier_proc, conn, WT_EXECUTEDEFAULT | WT_EXECUTELONGFUNCTION))
1813 status = RPC_S_OUT_OF_RESOURCES;
1814 }
1815
1816 return status;
1817 }
1818
1819 /* is this status something that the server can't recover from? */
1820 static inline BOOL is_hard_error(RPC_STATUS status)
1821 {
1822 switch (status)
1823 {
1824 case 0: /* user-defined fault */
1825 case ERROR_ACCESS_DENIED:
1826 case ERROR_INVALID_PARAMETER:
1827 case RPC_S_PROTOCOL_ERROR:
1828 case RPC_S_CALL_FAILED:
1829 case RPC_S_CALL_FAILED_DNE:
1830 case RPC_S_SEC_PKG_ERROR:
1831 return TRUE;
1832 default:
1833 return FALSE;
1834 }
1835 }
1836
1837 /***********************************************************************
1838 * I_RpcReceive [RPCRT4.@]
1839 */
1840 RPC_STATUS WINAPI I_RpcReceive(PRPC_MESSAGE pMsg)
1841 {
1842 RpcBinding* bind = pMsg->Handle;
1843 RPC_STATUS status;
1844 RpcPktHdr *hdr = NULL;
1845 RpcConnection *conn;
1846
1847 TRACE("(%p)\n", pMsg);
1848 if (!bind || bind->server || !pMsg->ReservedForRuntime) return RPC_S_INVALID_BINDING;
1849
1850 conn = pMsg->ReservedForRuntime;
1851 status = RPCRT4_Receive(conn, &hdr, pMsg);
1852 if (status != RPC_S_OK) {
1853 WARN("receive failed with error %x\n", status);
1854 goto fail;
1855 }
1856
1857 switch (hdr->common.ptype) {
1858 case PKT_RESPONSE:
1859 break;
1860 case PKT_FAULT:
1861 ERR ("we got fault packet with status 0x%x\n", hdr->fault.status);
1862 status = NCA2RPC_STATUS(hdr->fault.status);
1863 if (is_hard_error(status))
1864 goto fail;
1865 break;
1866 default:
1867 WARN("bad packet type %d\n", hdr->common.ptype);
1868 status = RPC_S_PROTOCOL_ERROR;
1869 goto fail;
1870 }
1871
1872 /* success */
1873 RPCRT4_FreeHeader(hdr);
1874 return status;
1875
1876 fail:
1877 RPCRT4_FreeHeader(hdr);
1878 RPCRT4_ReleaseConnection(conn);
1879 pMsg->ReservedForRuntime = NULL;
1880 return status;
1881 }
1882
1883 /***********************************************************************
1884 * I_RpcSendReceive [RPCRT4.@]
1885 *
1886 * Sends a message to the server and receives the response.
1887 *
1888 * PARAMS
1889 * pMsg [I/O] RPC message information.
1890 *
1891 * RETURNS
1892 * Success: RPC_S_OK.
1893 * Failure: Any error code.
1894 *
1895 * NOTES
1896 * The buffer must have been allocated with I_RpcGetBuffer().
1897 *
1898 * SEE ALSO
1899 * I_RpcGetBuffer(), I_RpcSend(), I_RpcReceive().
1900 */
1901 RPC_STATUS WINAPI I_RpcSendReceive(PRPC_MESSAGE pMsg)
1902 {
1903 RPC_STATUS status;
1904 void *original_buffer;
1905
1906 TRACE("(%p)\n", pMsg);
1907
1908 original_buffer = pMsg->Buffer;
1909 status = I_RpcSend(pMsg);
1910 if (status == RPC_S_OK)
1911 status = I_RpcReceive(pMsg);
1912 /* free the buffer replaced by a new buffer in I_RpcReceive */
1913 if (status == RPC_S_OK)
1914 I_RpcFree(original_buffer);
1915 return status;
1916 }
1917
1918 /***********************************************************************
1919 * I_RpcAsyncSetHandle [RPCRT4.@]
1920 *
1921 * Sets the asynchronous state of the handle contained in the RPC message
1922 * structure.
1923 *
1924 * PARAMS
1925 * pMsg [I] RPC Message structure.
1926 * pAsync [I] Asynchronous state to set.
1927 *
1928 * RETURNS
1929 * Success: RPC_S_OK.
1930 * Failure: Any error code.
1931 */
1932 RPC_STATUS WINAPI I_RpcAsyncSetHandle(PRPC_MESSAGE pMsg, PRPC_ASYNC_STATE pAsync)
1933 {
1934 RpcBinding* bind = pMsg->Handle;
1935 RpcConnection *conn;
1936
1937 TRACE("(%p, %p)\n", pMsg, pAsync);
1938
1939 if (!bind || bind->server || !pMsg->ReservedForRuntime) return RPC_S_INVALID_BINDING;
1940
1941 conn = pMsg->ReservedForRuntime;
1942 conn->async_state = pAsync;
1943
1944 return RPC_S_OK;
1945 }
1946
1947 /***********************************************************************
1948 * I_RpcAsyncAbortCall [RPCRT4.@]
1949 *
1950 * Aborts an asynchronous call.
1951 *
1952 * PARAMS
1953 * pAsync [I] Asynchronous state.
1954 * ExceptionCode [I] Exception code.
1955 *
1956 * RETURNS
1957 * Success: RPC_S_OK.
1958 * Failure: Any error code.
1959 */
1960 RPC_STATUS WINAPI I_RpcAsyncAbortCall(PRPC_ASYNC_STATE pAsync, ULONG ExceptionCode)
1961 {
1962 FIXME("(%p, %d): stub\n", pAsync, ExceptionCode);
1963 return RPC_S_INVALID_ASYNC_HANDLE;
1964 }
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