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rpcrt4: Sign-compare warnings fix.
[wine/multimedia.git] / dlls / rpcrt4 / rpc_transport.c
blob3d66740790082f44ac013056f268f5731da969b5
1 /*
2 * RPC transport layer
3 *
4 * Copyright 2001 Ove Kåven, TransGaming Technologies
5 * Copyright 2003 Mike Hearn
6 * Copyright 2004 Filip Navara
7 * Copyright 2006 Mike McCormack
8 * Copyright 2006 Damjan Jovanovic
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 *
24 */
25
26 #include "config.h"
27
28 #include <stdarg.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include <assert.h>
32 #include <stdlib.h>
33 #include <sys/types.h>
34
35 #if defined(__MINGW32__) || defined (_MSC_VER)
36 # include <ws2tcpip.h>
37 # ifndef EADDRINUSE
38 # define EADDRINUSE WSAEADDRINUSE
39 # endif
40 # ifndef EAGAIN
41 # define EAGAIN WSAEWOULDBLOCK
42 # endif
43 #else
44 # include <errno.h>
45 # ifdef HAVE_UNISTD_H
46 # include <unistd.h>
47 # endif
48 # include <fcntl.h>
49 # ifdef HAVE_SYS_SOCKET_H
50 # include <sys/socket.h>
51 # endif
52 # ifdef HAVE_NETINET_IN_H
53 # include <netinet/in.h>
54 # endif
55 # ifdef HAVE_NETINET_TCP_H
56 # include <netinet/tcp.h>
57 # endif
58 # ifdef HAVE_ARPA_INET_H
59 # include <arpa/inet.h>
60 # endif
61 # ifdef HAVE_NETDB_H
62 # include <netdb.h>
63 # endif
64 # ifdef HAVE_SYS_POLL_H
65 # include <sys/poll.h>
66 # endif
67 # define closesocket close
68 #endif /* defined(__MINGW32__) || defined (_MSC_VER) */
69
70 #include "windef.h"
71 #include "winbase.h"
72 #include "winnls.h"
73 #include "winerror.h"
74 #include "winternl.h"
75 #include "wine/unicode.h"
76
77 #include "rpc.h"
78 #include "rpcndr.h"
79
80 #include "wine/debug.h"
81
82 #include "rpc_binding.h"
83 #include "rpc_message.h"
84 #include "rpc_server.h"
85 #include "epm_towers.h"
86
87 #ifndef SOL_TCP
88 # define SOL_TCP IPPROTO_TCP
89 #endif
90
91 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
92
93 /**** ncacn_np support ****/
94
95 typedef struct _RpcConnection_np
96 {
97 RpcConnection common;
98 HANDLE pipe;
99 OVERLAPPED ovl;
100 BOOL listening;
101 } RpcConnection_np;
102
103 static RpcConnection *rpcrt4_conn_np_alloc(void)
104 {
105 RpcConnection_np *npc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_np));
106 if (npc)
107 {
108 npc->pipe = NULL;
109 memset(&npc->ovl, 0, sizeof(npc->ovl));
110 npc->listening = FALSE;
111 }
112 return &npc->common;
113 }
114
115 static RPC_STATUS rpcrt4_conn_listen_pipe(RpcConnection_np *npc)
116 {
117 if (npc->listening)
118 return RPC_S_OK;
119
120 npc->listening = TRUE;
121 for (;;)
122 {
123 if (ConnectNamedPipe(npc->pipe, &npc->ovl))
124 return RPC_S_OK;
125
126 switch(GetLastError())
127 {
128 case ERROR_PIPE_CONNECTED:
129 SetEvent(npc->ovl.hEvent);
130 return RPC_S_OK;
131 case ERROR_IO_PENDING:
132 /* will be completed in rpcrt4_protseq_np_wait_for_new_connection */
133 return RPC_S_OK;
134 case ERROR_NO_DATA_DETECTED:
135 /* client has disconnected, retry */
136 DisconnectNamedPipe( npc->pipe );
137 break;
138 default:
139 npc->listening = FALSE;
140 WARN("Couldn't ConnectNamedPipe (error was %d)\n", GetLastError());
141 return RPC_S_OUT_OF_RESOURCES;
142 }
143 }
144 }
145
146 static RPC_STATUS rpcrt4_conn_create_pipe(RpcConnection *Connection, LPCSTR pname)
147 {
148 RpcConnection_np *npc = (RpcConnection_np *) Connection;
149 TRACE("listening on %s\n", pname);
150
151 npc->pipe = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX,
152 PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE,
153 PIPE_UNLIMITED_INSTANCES,
154 RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
155 if (npc->pipe == INVALID_HANDLE_VALUE) {
156 WARN("CreateNamedPipe failed with error %d\n", GetLastError());
157 if (GetLastError() == ERROR_FILE_EXISTS)
158 return RPC_S_DUPLICATE_ENDPOINT;
159 else
160 return RPC_S_CANT_CREATE_ENDPOINT;
161 }
162
163 memset(&npc->ovl, 0, sizeof(npc->ovl));
164 npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
165
166 /* Note: we don't call ConnectNamedPipe here because it must be done in the
167 * server thread as the thread must be alertable */
168 return RPC_S_OK;
169 }
170
171 static RPC_STATUS rpcrt4_conn_open_pipe(RpcConnection *Connection, LPCSTR pname, BOOL wait)
172 {
173 RpcConnection_np *npc = (RpcConnection_np *) Connection;
174 HANDLE pipe;
175 DWORD err, dwMode;
176
177 TRACE("connecting to %s\n", pname);
178
179 while (TRUE) {
180 DWORD dwFlags = 0;
181 if (Connection->QOS)
182 {
183 dwFlags = SECURITY_SQOS_PRESENT;
184 switch (Connection->QOS->qos->ImpersonationType)
185 {
186 case RPC_C_IMP_LEVEL_DEFAULT:
187 /* FIXME: what to do here? */
188 break;
189 case RPC_C_IMP_LEVEL_ANONYMOUS:
190 dwFlags |= SECURITY_ANONYMOUS;
191 break;
192 case RPC_C_IMP_LEVEL_IDENTIFY:
193 dwFlags |= SECURITY_IDENTIFICATION;
194 break;
195 case RPC_C_IMP_LEVEL_IMPERSONATE:
196 dwFlags |= SECURITY_IMPERSONATION;
197 break;
198 case RPC_C_IMP_LEVEL_DELEGATE:
199 dwFlags |= SECURITY_DELEGATION;
200 break;
201 }
202 if (Connection->QOS->qos->IdentityTracking == RPC_C_QOS_IDENTIFY_DYNAMIC)
203 dwFlags |= SECURITY_CONTEXT_TRACKING;
204 }
205 pipe = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
206 OPEN_EXISTING, dwFlags, 0);
207 if (pipe != INVALID_HANDLE_VALUE) break;
208 err = GetLastError();
209 if (err == ERROR_PIPE_BUSY) {
210 TRACE("connection failed, error=%x\n", err);
211 return RPC_S_SERVER_TOO_BUSY;
212 }
213 if (!wait || !WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
214 err = GetLastError();
215 WARN("connection failed, error=%x\n", err);
216 return RPC_S_SERVER_UNAVAILABLE;
217 }
218 }
219
220 /* success */
221 memset(&npc->ovl, 0, sizeof(npc->ovl));
222 /* pipe is connected; change to message-read mode. */
223 dwMode = PIPE_READMODE_MESSAGE;
224 SetNamedPipeHandleState(pipe, &dwMode, NULL, NULL);
225 npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
226 npc->pipe = pipe;
227
228 return RPC_S_OK;
229 }
230
231 static RPC_STATUS rpcrt4_ncalrpc_open(RpcConnection* Connection)
232 {
233 RpcConnection_np *npc = (RpcConnection_np *) Connection;
234 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
235 RPC_STATUS r;
236 LPSTR pname;
237
238 /* already connected? */
239 if (npc->pipe)
240 return RPC_S_OK;
241
242 /* protseq=ncalrpc: supposed to use NT LPC ports,
243 * but we'll implement it with named pipes for now */
244 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
245 strcat(strcpy(pname, prefix), Connection->Endpoint);
246 r = rpcrt4_conn_open_pipe(Connection, pname, TRUE);
247 I_RpcFree(pname);
248
249 return r;
250 }
251
252 static RPC_STATUS rpcrt4_protseq_ncalrpc_open_endpoint(RpcServerProtseq* protseq, LPSTR endpoint)
253 {
254 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
255 RPC_STATUS r;
256 LPSTR pname;
257 RpcConnection *Connection;
258
259 r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
260 endpoint, NULL, NULL, NULL);
261 if (r != RPC_S_OK)
262 return r;
263
264 /* protseq=ncalrpc: supposed to use NT LPC ports,
265 * but we'll implement it with named pipes for now */
266 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
267 strcat(strcpy(pname, prefix), Connection->Endpoint);
268 r = rpcrt4_conn_create_pipe(Connection, pname);
269 I_RpcFree(pname);
270
271 EnterCriticalSection(&protseq->cs);
272 Connection->Next = protseq->conn;
273 protseq->conn = Connection;
274 LeaveCriticalSection(&protseq->cs);
275
276 return r;
277 }
278
279 static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection)
280 {
281 RpcConnection_np *npc = (RpcConnection_np *) Connection;
282 static const char prefix[] = "\\\\.";
283 RPC_STATUS r;
284 LPSTR pname;
285
286 /* already connected? */
287 if (npc->pipe)
288 return RPC_S_OK;
289
290 /* protseq=ncacn_np: named pipes */
291 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
292 strcat(strcpy(pname, prefix), Connection->Endpoint);
293 r = rpcrt4_conn_open_pipe(Connection, pname, FALSE);
294 I_RpcFree(pname);
295
296 return r;
297 }
298
299 static RPC_STATUS rpcrt4_protseq_ncacn_np_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
300 {
301 static const char prefix[] = "\\\\.";
302 RPC_STATUS r;
303 LPSTR pname;
304 RpcConnection *Connection;
305
306 r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
307 endpoint, NULL, NULL, NULL);
308 if (r != RPC_S_OK)
309 return r;
310
311 /* protseq=ncacn_np: named pipes */
312 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
313 strcat(strcpy(pname, prefix), Connection->Endpoint);
314 r = rpcrt4_conn_create_pipe(Connection, pname);
315 I_RpcFree(pname);
316
317 EnterCriticalSection(&protseq->cs);
318 Connection->Next = protseq->conn;
319 protseq->conn = Connection;
320 LeaveCriticalSection(&protseq->cs);
321
322 return r;
323 }
324
325 static void rpcrt4_conn_np_handoff(RpcConnection_np *old_npc, RpcConnection_np *new_npc)
326 {
327 /* because of the way named pipes work, we'll transfer the connected pipe
328 * to the child, then reopen the server binding to continue listening */
329
330 new_npc->pipe = old_npc->pipe;
331 new_npc->ovl = old_npc->ovl;
332 old_npc->pipe = 0;
333 memset(&old_npc->ovl, 0, sizeof(old_npc->ovl));
334 old_npc->listening = FALSE;
335 }
336
337 static RPC_STATUS rpcrt4_ncacn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
338 {
339 RPC_STATUS status;
340 LPSTR pname;
341 static const char prefix[] = "\\\\.";
342
343 rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
344
345 pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
346 strcat(strcpy(pname, prefix), old_conn->Endpoint);
347 status = rpcrt4_conn_create_pipe(old_conn, pname);
348 I_RpcFree(pname);
349
350 return status;
351 }
352
353 static RPC_STATUS rpcrt4_ncalrpc_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
354 {
355 RPC_STATUS status;
356 LPSTR pname;
357 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
358
359 TRACE("%s\n", old_conn->Endpoint);
360
361 rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
362
363 pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
364 strcat(strcpy(pname, prefix), old_conn->Endpoint);
365 status = rpcrt4_conn_create_pipe(old_conn, pname);
366 I_RpcFree(pname);
367
368 return status;
369 }
370
371 static int rpcrt4_conn_np_read(RpcConnection *Connection,
372 void *buffer, unsigned int count)
373 {
374 RpcConnection_np *npc = (RpcConnection_np *) Connection;
375 char *buf = buffer;
376 BOOL ret = TRUE;
377 unsigned int bytes_left = count;
378
379 while (bytes_left)
380 {
381 DWORD bytes_read;
382 ret = ReadFile(npc->pipe, buf, bytes_left, &bytes_read, NULL);
383 if (!ret || !bytes_read)
384 break;
385 bytes_left -= bytes_read;
386 buf += bytes_read;
387 }
388 return ret ? count : -1;
389 }
390
391 static int rpcrt4_conn_np_write(RpcConnection *Connection,
392 const void *buffer, unsigned int count)
393 {
394 RpcConnection_np *npc = (RpcConnection_np *) Connection;
395 const char *buf = buffer;
396 BOOL ret = TRUE;
397 unsigned int bytes_left = count;
398
399 while (bytes_left)
400 {
401 DWORD bytes_written;
402 ret = WriteFile(npc->pipe, buf, bytes_left, &bytes_written, NULL);
403 if (!ret || !bytes_written)
404 break;
405 bytes_left -= bytes_written;
406 buf += bytes_written;
407 }
408 return ret ? count : -1;
409 }
410
411 static int rpcrt4_conn_np_close(RpcConnection *Connection)
412 {
413 RpcConnection_np *npc = (RpcConnection_np *) Connection;
414 if (npc->pipe) {
415 FlushFileBuffers(npc->pipe);
416 CloseHandle(npc->pipe);
417 npc->pipe = 0;
418 }
419 if (npc->ovl.hEvent) {
420 CloseHandle(npc->ovl.hEvent);
421 npc->ovl.hEvent = 0;
422 }
423 return 0;
424 }
425
426 static void rpcrt4_conn_np_cancel_call(RpcConnection *Connection)
427 {
428 /* FIXME: implement when named pipe writes use overlapped I/O */
429 }
430
431 static int rpcrt4_conn_np_wait_for_incoming_data(RpcConnection *Connection)
432 {
433 /* FIXME: implement when named pipe writes use overlapped I/O */
434 return -1;
435 }
436
437 static size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
438 const char *networkaddr,
439 const char *endpoint)
440 {
441 twr_empty_floor_t *smb_floor;
442 twr_empty_floor_t *nb_floor;
443 size_t size;
444 size_t networkaddr_size;
445 size_t endpoint_size;
446
447 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
448
449 networkaddr_size = networkaddr ? strlen(networkaddr) + 1 : 1;
450 endpoint_size = endpoint ? strlen(endpoint) + 1 : 1;
451 size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
452
453 if (!tower_data)
454 return size;
455
456 smb_floor = (twr_empty_floor_t *)tower_data;
457
458 tower_data += sizeof(*smb_floor);
459
460 smb_floor->count_lhs = sizeof(smb_floor->protid);
461 smb_floor->protid = EPM_PROTOCOL_SMB;
462 smb_floor->count_rhs = endpoint_size;
463
464 if (endpoint)
465 memcpy(tower_data, endpoint, endpoint_size);
466 else
467 tower_data[0] = 0;
468 tower_data += endpoint_size;
469
470 nb_floor = (twr_empty_floor_t *)tower_data;
471
472 tower_data += sizeof(*nb_floor);
473
474 nb_floor->count_lhs = sizeof(nb_floor->protid);
475 nb_floor->protid = EPM_PROTOCOL_NETBIOS;
476 nb_floor->count_rhs = networkaddr_size;
477
478 if (networkaddr)
479 memcpy(tower_data, networkaddr, networkaddr_size);
480 else
481 tower_data[0] = 0;
482 tower_data += networkaddr_size;
483
484 return size;
485 }
486
487 static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
488 size_t tower_size,
489 char **networkaddr,
490 char **endpoint)
491 {
492 const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
493 const twr_empty_floor_t *nb_floor;
494
495 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
496
497 if (tower_size < sizeof(*smb_floor))
498 return EPT_S_NOT_REGISTERED;
499
500 tower_data += sizeof(*smb_floor);
501 tower_size -= sizeof(*smb_floor);
502
503 if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
504 (smb_floor->protid != EPM_PROTOCOL_SMB) ||
505 (smb_floor->count_rhs > tower_size) ||
506 (tower_data[smb_floor->count_rhs - 1] != '\0'))
507 return EPT_S_NOT_REGISTERED;
508
509 if (endpoint)
510 {
511 *endpoint = I_RpcAllocate(smb_floor->count_rhs);
512 if (!*endpoint)
513 return RPC_S_OUT_OF_RESOURCES;
514 memcpy(*endpoint, tower_data, smb_floor->count_rhs);
515 }
516 tower_data += smb_floor->count_rhs;
517 tower_size -= smb_floor->count_rhs;
518
519 if (tower_size < sizeof(*nb_floor))
520 return EPT_S_NOT_REGISTERED;
521
522 nb_floor = (const twr_empty_floor_t *)tower_data;
523
524 tower_data += sizeof(*nb_floor);
525 tower_size -= sizeof(*nb_floor);
526
527 if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
528 (nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
529 (nb_floor->count_rhs > tower_size) ||
530 (tower_data[nb_floor->count_rhs - 1] != '\0'))
531 return EPT_S_NOT_REGISTERED;
532
533 if (networkaddr)
534 {
535 *networkaddr = I_RpcAllocate(nb_floor->count_rhs);
536 if (!*networkaddr)
537 {
538 if (endpoint)
539 {
540 I_RpcFree(*endpoint);
541 *endpoint = NULL;
542 }
543 return RPC_S_OUT_OF_RESOURCES;
544 }
545 memcpy(*networkaddr, tower_data, nb_floor->count_rhs);
546 }
547
548 return RPC_S_OK;
549 }
550
551 typedef struct _RpcServerProtseq_np
552 {
553 RpcServerProtseq common;
554 HANDLE mgr_event;
555 } RpcServerProtseq_np;
556
557 static RpcServerProtseq *rpcrt4_protseq_np_alloc(void)
558 {
559 RpcServerProtseq_np *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
560 if (ps)
561 ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
562 return &ps->common;
563 }
564
565 static void rpcrt4_protseq_np_signal_state_changed(RpcServerProtseq *protseq)
566 {
567 RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
568 SetEvent(npps->mgr_event);
569 }
570
571 static void *rpcrt4_protseq_np_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
572 {
573 HANDLE *objs = prev_array;
574 RpcConnection_np *conn;
575 RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
576
577 EnterCriticalSection(&protseq->cs);
578
579 /* open and count connections */
580 *count = 1;
581 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
582 while (conn) {
583 rpcrt4_conn_listen_pipe(conn);
584 if (conn->ovl.hEvent)
585 (*count)++;
586 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
587 }
588
589 /* make array of connections */
590 if (objs)
591 objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
592 else
593 objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
594 if (!objs)
595 {
596 ERR("couldn't allocate objs\n");
597 LeaveCriticalSection(&protseq->cs);
598 return NULL;
599 }
600
601 objs[0] = npps->mgr_event;
602 *count = 1;
603 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
604 while (conn) {
605 if ((objs[*count] = conn->ovl.hEvent))
606 (*count)++;
607 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
608 }
609 LeaveCriticalSection(&protseq->cs);
610 return objs;
611 }
612
613 static void rpcrt4_protseq_np_free_wait_array(RpcServerProtseq *protseq, void *array)
614 {
615 HeapFree(GetProcessHeap(), 0, array);
616 }
617
618 static int rpcrt4_protseq_np_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
619 {
620 HANDLE b_handle;
621 HANDLE *objs = wait_array;
622 DWORD res;
623 RpcConnection *cconn;
624 RpcConnection_np *conn;
625
626 if (!objs)
627 return -1;
628
629 do
630 {
631 /* an alertable wait isn't strictly necessary, but due to our
632 * overlapped I/O implementation in Wine we need to free some memory
633 * by the file user APC being called, even if no completion routine was
634 * specified at the time of starting the async operation */
635 res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
636 } while (res == WAIT_IO_COMPLETION);
637
638 if (res == WAIT_OBJECT_0)
639 return 0;
640 else if (res == WAIT_FAILED)
641 {
642 ERR("wait failed with error %d\n", GetLastError());
643 return -1;
644 }
645 else
646 {
647 b_handle = objs[res - WAIT_OBJECT_0];
648 /* find which connection got a RPC */
649 EnterCriticalSection(&protseq->cs);
650 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
651 while (conn) {
652 if (b_handle == conn->ovl.hEvent) break;
653 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
654 }
655 cconn = NULL;
656 if (conn)
657 RPCRT4_SpawnConnection(&cconn, &conn->common);
658 else
659 ERR("failed to locate connection for handle %p\n", b_handle);
660 LeaveCriticalSection(&protseq->cs);
661 if (cconn)
662 {
663 RPCRT4_new_client(cconn);
664 return 1;
665 }
666 else return -1;
667 }
668 }
669
670 static size_t rpcrt4_ncalrpc_get_top_of_tower(unsigned char *tower_data,
671 const char *networkaddr,
672 const char *endpoint)
673 {
674 twr_empty_floor_t *pipe_floor;
675 size_t size;
676 size_t endpoint_size;
677
678 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
679
680 endpoint_size = strlen(endpoint) + 1;
681 size = sizeof(*pipe_floor) + endpoint_size;
682
683 if (!tower_data)
684 return size;
685
686 pipe_floor = (twr_empty_floor_t *)tower_data;
687
688 tower_data += sizeof(*pipe_floor);
689
690 pipe_floor->count_lhs = sizeof(pipe_floor->protid);
691 pipe_floor->protid = EPM_PROTOCOL_PIPE;
692 pipe_floor->count_rhs = endpoint_size;
693
694 memcpy(tower_data, endpoint, endpoint_size);
695 tower_data += endpoint_size;
696
697 return size;
698 }
699
700 static RPC_STATUS rpcrt4_ncalrpc_parse_top_of_tower(const unsigned char *tower_data,
701 size_t tower_size,
702 char **networkaddr,
703 char **endpoint)
704 {
705 const twr_empty_floor_t *pipe_floor = (const twr_empty_floor_t *)tower_data;
706
707 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
708
709 if (tower_size < sizeof(*pipe_floor))
710 return EPT_S_NOT_REGISTERED;
711
712 tower_data += sizeof(*pipe_floor);
713 tower_size -= sizeof(*pipe_floor);
714
715 if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
716 (pipe_floor->protid != EPM_PROTOCOL_PIPE) ||
717 (pipe_floor->count_rhs > tower_size) ||
718 (tower_data[pipe_floor->count_rhs - 1] != '\0'))
719 return EPT_S_NOT_REGISTERED;
720
721 if (networkaddr)
722 *networkaddr = NULL;
723
724 if (endpoint)
725 {
726 *endpoint = I_RpcAllocate(pipe_floor->count_rhs);
727 if (!*endpoint)
728 return RPC_S_OUT_OF_RESOURCES;
729 memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
730 }
731
732 return RPC_S_OK;
733 }
734
735 /**** ncacn_ip_tcp support ****/
736
737 typedef struct _RpcConnection_tcp
738 {
739 RpcConnection common;
740 int sock;
741 int cancel_fds[2];
742 } RpcConnection_tcp;
743
744 static RpcConnection *rpcrt4_conn_tcp_alloc(void)
745 {
746 RpcConnection_tcp *tcpc;
747 tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
748 if (tcpc == NULL)
749 return NULL;
750 tcpc->sock = -1;
751 if (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0)
752 {
753 ERR("socketpair() failed: %s\n", strerror(errno));
754 HeapFree(GetProcessHeap(), 0, tcpc);
755 return NULL;
756 }
757 return &tcpc->common;
758 }
759
760 static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection)
761 {
762 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
763 int sock;
764 int ret;
765 struct addrinfo *ai;
766 struct addrinfo *ai_cur;
767 struct addrinfo hints;
768
769 TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
770
771 if (tcpc->sock != -1)
772 return RPC_S_OK;
773
774 hints.ai_flags = 0;
775 hints.ai_family = PF_UNSPEC;
776 hints.ai_socktype = SOCK_STREAM;
777 hints.ai_protocol = IPPROTO_TCP;
778 hints.ai_addrlen = 0;
779 hints.ai_addr = NULL;
780 hints.ai_canonname = NULL;
781 hints.ai_next = NULL;
782
783 ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai);
784 if (ret)
785 {
786 ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
787 Connection->Endpoint, gai_strerror(ret));
788 return RPC_S_SERVER_UNAVAILABLE;
789 }
790
791 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
792 {
793 int val;
794
795 if (TRACE_ON(rpc))
796 {
797 char host[256];
798 char service[256];
799 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
800 host, sizeof(host), service, sizeof(service),
801 NI_NUMERICHOST | NI_NUMERICSERV);
802 TRACE("trying %s:%s\n", host, service);
803 }
804
805 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
806 if (sock == -1)
807 {
808 WARN("socket() failed: %s\n", strerror(errno));
809 continue;
810 }
811
812 if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
813 {
814 WARN("connect() failed: %s\n", strerror(errno));
815 closesocket(sock);
816 continue;
817 }
818
819 /* RPC depends on having minimal latency so disable the Nagle algorithm */
820 val = 1;
821 setsockopt(sock, SOL_TCP, TCP_NODELAY, &val, sizeof(val));
822 fcntl(sock, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
823
824 tcpc->sock = sock;
825
826 freeaddrinfo(ai);
827 TRACE("connected\n");
828 return RPC_S_OK;
829 }
830
831 freeaddrinfo(ai);
832 ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint);
833 return RPC_S_SERVER_UNAVAILABLE;
834 }
835
836 static RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
837 {
838 RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
839 int sock;
840 int ret;
841 struct addrinfo *ai;
842 struct addrinfo *ai_cur;
843 struct addrinfo hints;
844 RpcConnection *first_connection = NULL;
845
846 TRACE("(%p, %s)\n", protseq, endpoint);
847
848 hints.ai_flags = AI_PASSIVE /* for non-localhost addresses */;
849 hints.ai_family = PF_UNSPEC;
850 hints.ai_socktype = SOCK_STREAM;
851 hints.ai_protocol = IPPROTO_TCP;
852 hints.ai_addrlen = 0;
853 hints.ai_addr = NULL;
854 hints.ai_canonname = NULL;
855 hints.ai_next = NULL;
856
857 ret = getaddrinfo(NULL, endpoint, &hints, &ai);
858 if (ret)
859 {
860 ERR("getaddrinfo for port %s failed: %s\n", endpoint,
861 gai_strerror(ret));
862 if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
863 return RPC_S_INVALID_ENDPOINT_FORMAT;
864 return RPC_S_CANT_CREATE_ENDPOINT;
865 }
866
867 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
868 {
869 RpcConnection_tcp *tcpc;
870 RPC_STATUS create_status;
871
872 if (TRACE_ON(rpc))
873 {
874 char host[256];
875 char service[256];
876 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
877 host, sizeof(host), service, sizeof(service),
878 NI_NUMERICHOST | NI_NUMERICSERV);
879 TRACE("trying %s:%s\n", host, service);
880 }
881
882 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
883 if (sock == -1)
884 {
885 WARN("socket() failed: %s\n", strerror(errno));
886 status = RPC_S_CANT_CREATE_ENDPOINT;
887 continue;
888 }
889
890 ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
891 if (ret < 0)
892 {
893 WARN("bind failed: %s\n", strerror(errno));
894 closesocket(sock);
895 if (errno == EADDRINUSE)
896 status = RPC_S_DUPLICATE_ENDPOINT;
897 else
898 status = RPC_S_CANT_CREATE_ENDPOINT;
899 continue;
900 }
901 create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
902 protseq->Protseq, NULL,
903 endpoint, NULL, NULL, NULL);
904 if (create_status != RPC_S_OK)
905 {
906 closesocket(sock);
907 status = create_status;
908 continue;
909 }
910
911 tcpc->sock = sock;
912 ret = listen(sock, protseq->MaxCalls);
913 if (ret < 0)
914 {
915 WARN("listen failed: %s\n", strerror(errno));
916 RPCRT4_DestroyConnection(&tcpc->common);
917 status = RPC_S_OUT_OF_RESOURCES;
918 continue;
919 }
920 /* need a non-blocking socket, otherwise accept() has a potential
921 * race-condition (poll() says it is readable, connection drops,
922 * and accept() blocks until the next connection comes...)
923 */
924 ret = fcntl(sock, F_SETFL, O_NONBLOCK);
925 if (ret < 0)
926 {
927 WARN("couldn't make socket non-blocking, error %d\n", ret);
928 RPCRT4_DestroyConnection(&tcpc->common);
929 status = RPC_S_OUT_OF_RESOURCES;
930 continue;
931 }
932
933 tcpc->common.Next = first_connection;
934 first_connection = &tcpc->common;
935 }
936
937 freeaddrinfo(ai);
938
939 /* if at least one connection was created for an endpoint then
940 * return success */
941 if (first_connection)
942 {
943 RpcConnection *conn;
944
945 /* find last element in list */
946 for (conn = first_connection; conn->Next; conn = conn->Next)
947 ;
948
949 EnterCriticalSection(&protseq->cs);
950 conn->Next = protseq->conn;
951 protseq->conn = first_connection;
952 LeaveCriticalSection(&protseq->cs);
953
954 TRACE("listening on %s\n", endpoint);
955 return RPC_S_OK;
956 }
957
958 ERR("couldn't listen on port %s\n", endpoint);
959 return status;
960 }
961
962 static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
963 {
964 int ret;
965 struct sockaddr_in address;
966 socklen_t addrsize;
967 RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
968 RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
969
970 addrsize = sizeof(address);
971 ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
972 if (ret < 0)
973 {
974 ERR("Failed to accept a TCP connection: error %d\n", ret);
975 return RPC_S_OUT_OF_RESOURCES;
976 }
977 /* reset to blocking behaviour */
978 fcntl(ret, F_SETFL, 0);
979 client->sock = ret;
980 TRACE("Accepted a new TCP connection\n");
981 return RPC_S_OK;
982 }
983
984 static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
985 void *buffer, unsigned int count)
986 {
987 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
988 int bytes_read = 0;
989 do
990 {
991 int r = recv(tcpc->sock, (char *)buffer + bytes_read, count - bytes_read, 0);
992 if (!r)
993 return -1;
994 else if (r > 0)
995 bytes_read += r;
996 else if (errno != EAGAIN)
997 {
998 WARN("recv() failed: %s\n", strerror(errno));
999 return -1;
1000 }
1001 else
1002 {
1003 struct pollfd pfds[2];
1004 pfds[0].fd = tcpc->sock;
1005 pfds[0].events = POLLIN;
1006 pfds[1].fd = tcpc->cancel_fds[0];
1007 pfds[1].events = POLLIN;
1008 if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1009 {
1010 ERR("poll() failed: %s\n", strerror(errno));
1011 return -1;
1012 }
1013 if (pfds[1].revents & POLLIN) /* canceled */
1014 {
1015 char dummy;
1016 read(pfds[1].fd, &dummy, sizeof(dummy));
1017 return -1;
1018 }
1019 }
1020 } while (bytes_read != count);
1021 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_read);
1022 return bytes_read;
1023 }
1024
1025 static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
1026 const void *buffer, unsigned int count)
1027 {
1028 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1029 int bytes_written = 0;
1030 do
1031 {
1032 int r = send(tcpc->sock, (const char *)buffer + bytes_written, count - bytes_written, 0);
1033 if (r >= 0)
1034 bytes_written += r;
1035 else if (errno != EAGAIN)
1036 return -1;
1037 else
1038 {
1039 struct pollfd pfd;
1040 pfd.fd = tcpc->sock;
1041 pfd.events = POLLOUT;
1042 if (poll(&pfd, 1, -1 /* infinite */) == -1 && errno != EINTR)
1043 {
1044 ERR("poll() failed: %s\n", strerror(errno));
1045 return -1;
1046 }
1047 }
1048 } while (bytes_written != count);
1049 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_written);
1050 return bytes_written;
1051 }
1052
1053 static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
1054 {
1055 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1056
1057 TRACE("%d\n", tcpc->sock);
1058
1059 if (tcpc->sock != -1)
1060 closesocket(tcpc->sock);
1061 tcpc->sock = -1;
1062 close(tcpc->cancel_fds[0]);
1063 close(tcpc->cancel_fds[1]);
1064 return 0;
1065 }
1066
1067 static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection)
1068 {
1069 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1070 char dummy = 1;
1071
1072 TRACE("%p\n", Connection);
1073
1074 write(tcpc->cancel_fds[1], &dummy, 1);
1075 }
1076
1077 static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection)
1078 {
1079 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1080 struct pollfd pfds[2];
1081
1082 TRACE("%p\n", Connection);
1083
1084 pfds[0].fd = tcpc->sock;
1085 pfds[0].events = POLLIN;
1086 pfds[1].fd = tcpc->cancel_fds[0];
1087 pfds[1].events = POLLIN;
1088 if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1089 {
1090 ERR("poll() failed: %s\n", strerror(errno));
1091 return -1;
1092 }
1093 if (pfds[1].revents & POLLIN) /* canceled */
1094 {
1095 char dummy;
1096 read(pfds[1].fd, &dummy, sizeof(dummy));
1097 return -1;
1098 }
1099
1100 return 0;
1101 }
1102
1103 static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
1104 const char *networkaddr,
1105 const char *endpoint)
1106 {
1107 twr_tcp_floor_t *tcp_floor;
1108 twr_ipv4_floor_t *ipv4_floor;
1109 struct addrinfo *ai;
1110 struct addrinfo hints;
1111 int ret;
1112 size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
1113
1114 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
1115
1116 if (!tower_data)
1117 return size;
1118
1119 tcp_floor = (twr_tcp_floor_t *)tower_data;
1120 tower_data += sizeof(*tcp_floor);
1121
1122 ipv4_floor = (twr_ipv4_floor_t *)tower_data;
1123
1124 tcp_floor->count_lhs = sizeof(tcp_floor->protid);
1125 tcp_floor->protid = EPM_PROTOCOL_TCP;
1126 tcp_floor->count_rhs = sizeof(tcp_floor->port);
1127
1128 ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
1129 ipv4_floor->protid = EPM_PROTOCOL_IP;
1130 ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
1131
1132 hints.ai_flags = AI_NUMERICHOST;
1133 /* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
1134 hints.ai_family = PF_INET;
1135 hints.ai_socktype = SOCK_STREAM;
1136 hints.ai_protocol = IPPROTO_TCP;
1137 hints.ai_addrlen = 0;
1138 hints.ai_addr = NULL;
1139 hints.ai_canonname = NULL;
1140 hints.ai_next = NULL;
1141
1142 ret = getaddrinfo(networkaddr, endpoint, &hints, &ai);
1143 if (ret)
1144 {
1145 ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
1146 if (ret)
1147 {
1148 ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
1149 return 0;
1150 }
1151 }
1152
1153 if (ai->ai_family == PF_INET)
1154 {
1155 const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
1156 tcp_floor->port = sin->sin_port;
1157 ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
1158 }
1159 else
1160 {
1161 ERR("unexpected protocol family %d\n", ai->ai_family);
1162 return 0;
1163 }
1164
1165 freeaddrinfo(ai);
1166
1167 return size;
1168 }
1169
1170 static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
1171 size_t tower_size,
1172 char **networkaddr,
1173 char **endpoint)
1174 {
1175 const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
1176 const twr_ipv4_floor_t *ipv4_floor;
1177 struct in_addr in_addr;
1178
1179 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
1180
1181 if (tower_size < sizeof(*tcp_floor))
1182 return EPT_S_NOT_REGISTERED;
1183
1184 tower_data += sizeof(*tcp_floor);
1185 tower_size -= sizeof(*tcp_floor);
1186
1187 if (tower_size < sizeof(*ipv4_floor))
1188 return EPT_S_NOT_REGISTERED;
1189
1190 ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
1191
1192 if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
1193 (tcp_floor->protid != EPM_PROTOCOL_TCP) ||
1194 (tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
1195 (ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
1196 (ipv4_floor->protid != EPM_PROTOCOL_IP) ||
1197 (ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
1198 return EPT_S_NOT_REGISTERED;
1199
1200 if (endpoint)
1201 {
1202 *endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
1203 if (!*endpoint)
1204 return RPC_S_OUT_OF_RESOURCES;
1205 sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
1206 }
1207
1208 if (networkaddr)
1209 {
1210 *networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
1211 if (!*networkaddr)
1212 {
1213 if (endpoint)
1214 {
1215 I_RpcFree(*endpoint);
1216 *endpoint = NULL;
1217 }
1218 return RPC_S_OUT_OF_RESOURCES;
1219 }
1220 in_addr.s_addr = ipv4_floor->ipv4addr;
1221 if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
1222 {
1223 ERR("inet_ntop: %s\n", strerror(errno));
1224 I_RpcFree(*networkaddr);
1225 *networkaddr = NULL;
1226 if (endpoint)
1227 {
1228 I_RpcFree(*endpoint);
1229 *endpoint = NULL;
1230 }
1231 return EPT_S_NOT_REGISTERED;
1232 }
1233 }
1234
1235 return RPC_S_OK;
1236 }
1237
1238 typedef struct _RpcServerProtseq_sock
1239 {
1240 RpcServerProtseq common;
1241 int mgr_event_rcv;
1242 int mgr_event_snd;
1243 } RpcServerProtseq_sock;
1244
1245 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1246 {
1247 RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1248 if (ps)
1249 {
1250 int fds[2];
1251 if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
1252 {
1253 fcntl(fds[0], F_SETFL, O_NONBLOCK);
1254 fcntl(fds[1], F_SETFL, O_NONBLOCK);
1255 ps->mgr_event_rcv = fds[0];
1256 ps->mgr_event_snd = fds[1];
1257 }
1258 else
1259 {
1260 ERR("socketpair failed with error %s\n", strerror(errno));
1261 HeapFree(GetProcessHeap(), 0, ps);
1262 return NULL;
1263 }
1264 }
1265 return &ps->common;
1266 }
1267
1268 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1269 {
1270 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1271 char dummy = 1;
1272 write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
1273 }
1274
1275 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1276 {
1277 struct pollfd *poll_info = prev_array;
1278 RpcConnection_tcp *conn;
1279 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1280
1281 EnterCriticalSection(&protseq->cs);
1282
1283 /* open and count connections */
1284 *count = 1;
1285 conn = (RpcConnection_tcp *)protseq->conn;
1286 while (conn) {
1287 if (conn->sock != -1)
1288 (*count)++;
1289 conn = (RpcConnection_tcp *)conn->common.Next;
1290 }
1291
1292 /* make array of connections */
1293 if (poll_info)
1294 poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
1295 else
1296 poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
1297 if (!poll_info)
1298 {
1299 ERR("couldn't allocate poll_info\n");
1300 LeaveCriticalSection(&protseq->cs);
1301 return NULL;
1302 }
1303
1304 poll_info[0].fd = sockps->mgr_event_rcv;
1305 poll_info[0].events = POLLIN;
1306 *count = 1;
1307 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1308 while (conn) {
1309 if (conn->sock != -1)
1310 {
1311 poll_info[*count].fd = conn->sock;
1312 poll_info[*count].events = POLLIN;
1313 (*count)++;
1314 }
1315 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1316 }
1317 LeaveCriticalSection(&protseq->cs);
1318 return poll_info;
1319 }
1320
1321 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1322 {
1323 HeapFree(GetProcessHeap(), 0, array);
1324 }
1325
1326 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1327 {
1328 struct pollfd *poll_info = wait_array;
1329 int ret;
1330 unsigned int i;
1331 RpcConnection *cconn;
1332 RpcConnection_tcp *conn;
1333
1334 if (!poll_info)
1335 return -1;
1336
1337 ret = poll(poll_info, count, -1);
1338 if (ret < 0)
1339 {
1340 ERR("poll failed with error %d\n", ret);
1341 return -1;
1342 }
1343
1344 for (i = 0; i < count; i++)
1345 if (poll_info[i].revents & POLLIN)
1346 {
1347 /* RPC server event */
1348 if (i == 0)
1349 {
1350 char dummy;
1351 read(poll_info[0].fd, &dummy, sizeof(dummy));
1352 return 0;
1353 }
1354
1355 /* find which connection got a RPC */
1356 EnterCriticalSection(&protseq->cs);
1357 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1358 while (conn) {
1359 if (poll_info[i].fd == conn->sock) break;
1360 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1361 }
1362 cconn = NULL;
1363 if (conn)
1364 RPCRT4_SpawnConnection(&cconn, &conn->common);
1365 else
1366 ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
1367 LeaveCriticalSection(&protseq->cs);
1368 if (cconn)
1369 RPCRT4_new_client(cconn);
1370 else
1371 return -1;
1372 }
1373
1374 return 1;
1375 }
1376
1377 static const struct connection_ops conn_protseq_list[] = {
1378 { "ncacn_np",
1379 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
1380 rpcrt4_conn_np_alloc,
1381 rpcrt4_ncacn_np_open,
1382 rpcrt4_ncacn_np_handoff,
1383 rpcrt4_conn_np_read,
1384 rpcrt4_conn_np_write,
1385 rpcrt4_conn_np_close,
1386 rpcrt4_conn_np_cancel_call,
1387 rpcrt4_conn_np_wait_for_incoming_data,
1388 rpcrt4_ncacn_np_get_top_of_tower,
1389 rpcrt4_ncacn_np_parse_top_of_tower,
1390 },
1391 { "ncalrpc",
1392 { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
1393 rpcrt4_conn_np_alloc,
1394 rpcrt4_ncalrpc_open,
1395 rpcrt4_ncalrpc_handoff,
1396 rpcrt4_conn_np_read,
1397 rpcrt4_conn_np_write,
1398 rpcrt4_conn_np_close,
1399 rpcrt4_conn_np_cancel_call,
1400 rpcrt4_conn_np_wait_for_incoming_data,
1401 rpcrt4_ncalrpc_get_top_of_tower,
1402 rpcrt4_ncalrpc_parse_top_of_tower,
1403 },
1404 { "ncacn_ip_tcp",
1405 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
1406 rpcrt4_conn_tcp_alloc,
1407 rpcrt4_ncacn_ip_tcp_open,
1408 rpcrt4_conn_tcp_handoff,
1409 rpcrt4_conn_tcp_read,
1410 rpcrt4_conn_tcp_write,
1411 rpcrt4_conn_tcp_close,
1412 rpcrt4_conn_tcp_cancel_call,
1413 rpcrt4_conn_tcp_wait_for_incoming_data,
1414 rpcrt4_ncacn_ip_tcp_get_top_of_tower,
1415 rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
1416 }
1417 };
1418
1419
1420 static const struct protseq_ops protseq_list[] =
1421 {
1422 {
1423 "ncacn_np",
1424 rpcrt4_protseq_np_alloc,
1425 rpcrt4_protseq_np_signal_state_changed,
1426 rpcrt4_protseq_np_get_wait_array,
1427 rpcrt4_protseq_np_free_wait_array,
1428 rpcrt4_protseq_np_wait_for_new_connection,
1429 rpcrt4_protseq_ncacn_np_open_endpoint,
1430 },
1431 {
1432 "ncalrpc",
1433 rpcrt4_protseq_np_alloc,
1434 rpcrt4_protseq_np_signal_state_changed,
1435 rpcrt4_protseq_np_get_wait_array,
1436 rpcrt4_protseq_np_free_wait_array,
1437 rpcrt4_protseq_np_wait_for_new_connection,
1438 rpcrt4_protseq_ncalrpc_open_endpoint,
1439 },
1440 {
1441 "ncacn_ip_tcp",
1442 rpcrt4_protseq_sock_alloc,
1443 rpcrt4_protseq_sock_signal_state_changed,
1444 rpcrt4_protseq_sock_get_wait_array,
1445 rpcrt4_protseq_sock_free_wait_array,
1446 rpcrt4_protseq_sock_wait_for_new_connection,
1447 rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
1448 },
1449 };
1450
1451 #define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
1452
1453 const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
1454 {
1455 unsigned int i;
1456 for(i=0; i<ARRAYSIZE(protseq_list); i++)
1457 if (!strcmp(protseq_list[i].name, protseq))
1458 return &protseq_list[i];
1459 return NULL;
1460 }
1461
1462 static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
1463 {
1464 unsigned int i;
1465 for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
1466 if (!strcmp(conn_protseq_list[i].name, protseq))
1467 return &conn_protseq_list[i];
1468 return NULL;
1469 }
1470
1471 /**** interface to rest of code ****/
1472
1473 RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
1474 {
1475 TRACE("(Connection == ^%p)\n", Connection);
1476
1477 assert(!Connection->server);
1478 return Connection->ops->open_connection_client(Connection);
1479 }
1480
1481 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
1482 {
1483 TRACE("(Connection == ^%p)\n", Connection);
1484 if (SecIsValidHandle(&Connection->ctx))
1485 {
1486 DeleteSecurityContext(&Connection->ctx);
1487 SecInvalidateHandle(&Connection->ctx);
1488 }
1489 rpcrt4_conn_close(Connection);
1490 return RPC_S_OK;
1491 }
1492
1493 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
1494 LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
1495 LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
1496 {
1497 const struct connection_ops *ops;
1498 RpcConnection* NewConnection;
1499
1500 ops = rpcrt4_get_conn_protseq_ops(Protseq);
1501 if (!ops)
1502 {
1503 FIXME("not supported for protseq %s\n", Protseq);
1504 return RPC_S_PROTSEQ_NOT_SUPPORTED;
1505 }
1506
1507 NewConnection = ops->alloc();
1508 NewConnection->Next = NULL;
1509 NewConnection->server_binding = NULL;
1510 NewConnection->server = server;
1511 NewConnection->ops = ops;
1512 NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
1513 NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
1514 NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
1515 NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
1516 memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
1517 NewConnection->NextCallId = 1;
1518
1519 SecInvalidateHandle(&NewConnection->ctx);
1520 memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
1521 NewConnection->attr = 0;
1522 if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
1523 NewConnection->AuthInfo = AuthInfo;
1524 NewConnection->encryption_auth_len = 0;
1525 NewConnection->signature_auth_len = 0;
1526 if (QOS) RpcQualityOfService_AddRef(QOS);
1527 NewConnection->QOS = QOS;
1528
1529 list_init(&NewConnection->conn_pool_entry);
1530 NewConnection->async_state = NULL;
1531
1532 TRACE("connection: %p\n", NewConnection);
1533 *Connection = NewConnection;
1534
1535 return RPC_S_OK;
1536 }
1537
1538
1539 RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
1540 {
1541 RPC_STATUS err;
1542
1543 err = RPCRT4_CreateConnection(Connection, OldConnection->server,
1544 rpcrt4_conn_get_name(OldConnection),
1545 OldConnection->NetworkAddr,
1546 OldConnection->Endpoint, NULL,
1547 OldConnection->AuthInfo, OldConnection->QOS);
1548 if (err == RPC_S_OK)
1549 rpcrt4_conn_handoff(OldConnection, *Connection);
1550 return err;
1551 }
1552
1553 RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection)
1554 {
1555 TRACE("connection: %p\n", Connection);
1556
1557 RPCRT4_CloseConnection(Connection);
1558 RPCRT4_strfree(Connection->Endpoint);
1559 RPCRT4_strfree(Connection->NetworkAddr);
1560 HeapFree(GetProcessHeap(), 0, Connection->NetworkOptions);
1561 if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
1562 if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
1563
1564 /* server-only */
1565 if (Connection->server_binding) RPCRT4_ReleaseBinding(Connection->server_binding);
1566
1567 HeapFree(GetProcessHeap(), 0, Connection);
1568 return RPC_S_OK;
1569 }
1570
1571 RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
1572 size_t *tower_size,
1573 const char *protseq,
1574 const char *networkaddr,
1575 const char *endpoint)
1576 {
1577 twr_empty_floor_t *protocol_floor;
1578 const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
1579
1580 *tower_size = 0;
1581
1582 if (!protseq_ops)
1583 return RPC_S_INVALID_RPC_PROTSEQ;
1584
1585 if (!tower_data)
1586 {
1587 *tower_size = sizeof(*protocol_floor);
1588 *tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
1589 return RPC_S_OK;
1590 }
1591
1592 protocol_floor = (twr_empty_floor_t *)tower_data;
1593 protocol_floor->count_lhs = sizeof(protocol_floor->protid);
1594 protocol_floor->protid = protseq_ops->epm_protocols[0];
1595 protocol_floor->count_rhs = 0;
1596
1597 tower_data += sizeof(*protocol_floor);
1598
1599 *tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
1600 if (!*tower_size)
1601 return EPT_S_NOT_REGISTERED;
1602
1603 *tower_size += sizeof(*protocol_floor);
1604
1605 return RPC_S_OK;
1606 }
1607
1608 RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
1609 size_t tower_size,
1610 char **protseq,
1611 char **networkaddr,
1612 char **endpoint)
1613 {
1614 const twr_empty_floor_t *protocol_floor;
1615 const twr_empty_floor_t *floor4;
1616 const struct connection_ops *protseq_ops = NULL;
1617 RPC_STATUS status;
1618 unsigned int i;
1619
1620 if (tower_size < sizeof(*protocol_floor))
1621 return EPT_S_NOT_REGISTERED;
1622
1623 protocol_floor = (const twr_empty_floor_t *)tower_data;
1624 tower_data += sizeof(*protocol_floor);
1625 tower_size -= sizeof(*protocol_floor);
1626 if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
1627 (protocol_floor->count_rhs > tower_size))
1628 return EPT_S_NOT_REGISTERED;
1629 tower_data += protocol_floor->count_rhs;
1630 tower_size -= protocol_floor->count_rhs;
1631
1632 floor4 = (const twr_empty_floor_t *)tower_data;
1633 if ((tower_size < sizeof(*floor4)) ||
1634 (floor4->count_lhs != sizeof(floor4->protid)))
1635 return EPT_S_NOT_REGISTERED;
1636
1637 for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
1638 if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
1639 (floor4->protid == conn_protseq_list[i].epm_protocols[1]))
1640 {
1641 protseq_ops = &conn_protseq_list[i];
1642 break;
1643 }
1644
1645 if (!protseq_ops)
1646 return EPT_S_NOT_REGISTERED;
1647
1648 status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
1649
1650 if ((status == RPC_S_OK) && protseq)
1651 {
1652 *protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
1653 strcpy(*protseq, protseq_ops->name);
1654 }
1655
1656 return status;
1657 }
1658
1659 /***********************************************************************
1660 * RpcNetworkIsProtseqValidW (RPCRT4.@)
1661 *
1662 * Checks if the given protocol sequence is known by the RPC system.
1663 * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
1664 *
1665 */
1666 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
1667 {
1668 char ps[0x10];
1669
1670 WideCharToMultiByte(CP_ACP, 0, protseq, -1,
1671 ps, sizeof ps, NULL, NULL);
1672 if (rpcrt4_get_conn_protseq_ops(ps))
1673 return RPC_S_OK;
1674
1675 FIXME("Unknown protseq %s\n", debugstr_w(protseq));
1676
1677 return RPC_S_INVALID_RPC_PROTSEQ;
1678 }
1679
1680 /***********************************************************************
1681 * RpcNetworkIsProtseqValidA (RPCRT4.@)
1682 */
1683 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
1684 {
1685 UNICODE_STRING protseqW;
1686
1687 if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
1688 {
1689 RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
1690 RtlFreeUnicodeString(&protseqW);
1691 return ret;
1692 }
1693 return RPC_S_OUT_OF_MEMORY;
1694 }
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