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winhelp: Constify the internal .hlp file parsing.
[wine.git] / dlls / rpcrt4 / rpc_transport.c
blob86c4e4f28dd874ea231f96e8b561260794471826
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)
214 return RPC_S_SERVER_UNAVAILABLE;
215 if (!WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
216 err = GetLastError();
217 WARN("connection failed, error=%x\n", err);
218 return RPC_S_SERVER_UNAVAILABLE;
219 }
220 }
221
222 /* success */
223 memset(&npc->ovl, 0, sizeof(npc->ovl));
224 /* pipe is connected; change to message-read mode. */
225 dwMode = PIPE_READMODE_MESSAGE;
226 SetNamedPipeHandleState(pipe, &dwMode, NULL, NULL);
227 npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
228 npc->pipe = pipe;
229
230 return RPC_S_OK;
231 }
232
233 static RPC_STATUS rpcrt4_ncalrpc_open(RpcConnection* Connection)
234 {
235 RpcConnection_np *npc = (RpcConnection_np *) Connection;
236 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
237 RPC_STATUS r;
238 LPSTR pname;
239
240 /* already connected? */
241 if (npc->pipe)
242 return RPC_S_OK;
243
244 /* protseq=ncalrpc: supposed to use NT LPC ports,
245 * but we'll implement it with named pipes for now */
246 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
247 strcat(strcpy(pname, prefix), Connection->Endpoint);
248 r = rpcrt4_conn_open_pipe(Connection, pname, TRUE);
249 I_RpcFree(pname);
250
251 return r;
252 }
253
254 static RPC_STATUS rpcrt4_protseq_ncalrpc_open_endpoint(RpcServerProtseq* protseq, LPSTR endpoint)
255 {
256 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
257 RPC_STATUS r;
258 LPSTR pname;
259 RpcConnection *Connection;
260
261 r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
262 endpoint, NULL, NULL, NULL);
263 if (r != RPC_S_OK)
264 return r;
265
266 /* protseq=ncalrpc: supposed to use NT LPC ports,
267 * but we'll implement it with named pipes for now */
268 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
269 strcat(strcpy(pname, prefix), Connection->Endpoint);
270 r = rpcrt4_conn_create_pipe(Connection, pname);
271 I_RpcFree(pname);
272
273 EnterCriticalSection(&protseq->cs);
274 Connection->Next = protseq->conn;
275 protseq->conn = Connection;
276 LeaveCriticalSection(&protseq->cs);
277
278 return r;
279 }
280
281 static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection)
282 {
283 RpcConnection_np *npc = (RpcConnection_np *) Connection;
284 static const char prefix[] = "\\\\.";
285 RPC_STATUS r;
286 LPSTR pname;
287
288 /* already connected? */
289 if (npc->pipe)
290 return RPC_S_OK;
291
292 /* protseq=ncacn_np: named pipes */
293 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
294 strcat(strcpy(pname, prefix), Connection->Endpoint);
295 r = rpcrt4_conn_open_pipe(Connection, pname, FALSE);
296 I_RpcFree(pname);
297
298 return r;
299 }
300
301 static RPC_STATUS rpcrt4_protseq_ncacn_np_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
302 {
303 static const char prefix[] = "\\\\.";
304 RPC_STATUS r;
305 LPSTR pname;
306 RpcConnection *Connection;
307
308 r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
309 endpoint, NULL, NULL, NULL);
310 if (r != RPC_S_OK)
311 return r;
312
313 /* protseq=ncacn_np: named pipes */
314 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
315 strcat(strcpy(pname, prefix), Connection->Endpoint);
316 r = rpcrt4_conn_create_pipe(Connection, pname);
317 I_RpcFree(pname);
318
319 EnterCriticalSection(&protseq->cs);
320 Connection->Next = protseq->conn;
321 protseq->conn = Connection;
322 LeaveCriticalSection(&protseq->cs);
323
324 return r;
325 }
326
327 static void rpcrt4_conn_np_handoff(RpcConnection_np *old_npc, RpcConnection_np *new_npc)
328 {
329 /* because of the way named pipes work, we'll transfer the connected pipe
330 * to the child, then reopen the server binding to continue listening */
331
332 new_npc->pipe = old_npc->pipe;
333 new_npc->ovl = old_npc->ovl;
334 old_npc->pipe = 0;
335 memset(&old_npc->ovl, 0, sizeof(old_npc->ovl));
336 old_npc->listening = FALSE;
337 }
338
339 static RPC_STATUS rpcrt4_ncacn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
340 {
341 RPC_STATUS status;
342 LPSTR pname;
343 static const char prefix[] = "\\\\.";
344
345 rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
346
347 pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
348 strcat(strcpy(pname, prefix), old_conn->Endpoint);
349 status = rpcrt4_conn_create_pipe(old_conn, pname);
350 I_RpcFree(pname);
351
352 return status;
353 }
354
355 static RPC_STATUS rpcrt4_ncalrpc_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
356 {
357 RPC_STATUS status;
358 LPSTR pname;
359 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
360
361 TRACE("%s\n", old_conn->Endpoint);
362
363 rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
364
365 pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
366 strcat(strcpy(pname, prefix), old_conn->Endpoint);
367 status = rpcrt4_conn_create_pipe(old_conn, pname);
368 I_RpcFree(pname);
369
370 return status;
371 }
372
373 static int rpcrt4_conn_np_read(RpcConnection *Connection,
374 void *buffer, unsigned int count)
375 {
376 RpcConnection_np *npc = (RpcConnection_np *) Connection;
377 char *buf = buffer;
378 BOOL ret = TRUE;
379 unsigned int bytes_left = count;
380
381 while (bytes_left)
382 {
383 DWORD bytes_read;
384 ret = ReadFile(npc->pipe, buf, bytes_left, &bytes_read, NULL);
385 if (!ret || !bytes_read)
386 break;
387 bytes_left -= bytes_read;
388 buf += bytes_read;
389 }
390 return ret ? count : -1;
391 }
392
393 static int rpcrt4_conn_np_write(RpcConnection *Connection,
394 const void *buffer, unsigned int count)
395 {
396 RpcConnection_np *npc = (RpcConnection_np *) Connection;
397 const char *buf = buffer;
398 BOOL ret = TRUE;
399 unsigned int bytes_left = count;
400
401 while (bytes_left)
402 {
403 DWORD bytes_written;
404 ret = WriteFile(npc->pipe, buf, bytes_left, &bytes_written, NULL);
405 if (!ret || !bytes_written)
406 break;
407 bytes_left -= bytes_written;
408 buf += bytes_written;
409 }
410 return ret ? count : -1;
411 }
412
413 static int rpcrt4_conn_np_close(RpcConnection *Connection)
414 {
415 RpcConnection_np *npc = (RpcConnection_np *) Connection;
416 if (npc->pipe) {
417 FlushFileBuffers(npc->pipe);
418 CloseHandle(npc->pipe);
419 npc->pipe = 0;
420 }
421 if (npc->ovl.hEvent) {
422 CloseHandle(npc->ovl.hEvent);
423 npc->ovl.hEvent = 0;
424 }
425 return 0;
426 }
427
428 static void rpcrt4_conn_np_cancel_call(RpcConnection *Connection)
429 {
430 /* FIXME: implement when named pipe writes use overlapped I/O */
431 }
432
433 static int rpcrt4_conn_np_wait_for_incoming_data(RpcConnection *Connection)
434 {
435 /* FIXME: implement when named pipe writes use overlapped I/O */
436 return -1;
437 }
438
439 static size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
440 const char *networkaddr,
441 const char *endpoint)
442 {
443 twr_empty_floor_t *smb_floor;
444 twr_empty_floor_t *nb_floor;
445 size_t size;
446 size_t networkaddr_size;
447 size_t endpoint_size;
448
449 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
450
451 networkaddr_size = networkaddr ? strlen(networkaddr) + 1 : 1;
452 endpoint_size = endpoint ? strlen(endpoint) + 1 : 1;
453 size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
454
455 if (!tower_data)
456 return size;
457
458 smb_floor = (twr_empty_floor_t *)tower_data;
459
460 tower_data += sizeof(*smb_floor);
461
462 smb_floor->count_lhs = sizeof(smb_floor->protid);
463 smb_floor->protid = EPM_PROTOCOL_SMB;
464 smb_floor->count_rhs = endpoint_size;
465
466 if (endpoint)
467 memcpy(tower_data, endpoint, endpoint_size);
468 else
469 tower_data[0] = 0;
470 tower_data += endpoint_size;
471
472 nb_floor = (twr_empty_floor_t *)tower_data;
473
474 tower_data += sizeof(*nb_floor);
475
476 nb_floor->count_lhs = sizeof(nb_floor->protid);
477 nb_floor->protid = EPM_PROTOCOL_NETBIOS;
478 nb_floor->count_rhs = networkaddr_size;
479
480 if (networkaddr)
481 memcpy(tower_data, networkaddr, networkaddr_size);
482 else
483 tower_data[0] = 0;
484 tower_data += networkaddr_size;
485
486 return size;
487 }
488
489 static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
490 size_t tower_size,
491 char **networkaddr,
492 char **endpoint)
493 {
494 const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
495 const twr_empty_floor_t *nb_floor;
496
497 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
498
499 if (tower_size < sizeof(*smb_floor))
500 return EPT_S_NOT_REGISTERED;
501
502 tower_data += sizeof(*smb_floor);
503 tower_size -= sizeof(*smb_floor);
504
505 if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
506 (smb_floor->protid != EPM_PROTOCOL_SMB) ||
507 (smb_floor->count_rhs > tower_size))
508 return EPT_S_NOT_REGISTERED;
509
510 if (endpoint)
511 {
512 *endpoint = I_RpcAllocate(smb_floor->count_rhs);
513 if (!*endpoint)
514 return RPC_S_OUT_OF_RESOURCES;
515 memcpy(*endpoint, tower_data, smb_floor->count_rhs);
516 }
517 tower_data += smb_floor->count_rhs;
518 tower_size -= smb_floor->count_rhs;
519
520 if (tower_size < sizeof(*nb_floor))
521 return EPT_S_NOT_REGISTERED;
522
523 nb_floor = (const twr_empty_floor_t *)tower_data;
524
525 tower_data += sizeof(*nb_floor);
526 tower_size -= sizeof(*nb_floor);
527
528 if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
529 (nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
530 (nb_floor->count_rhs > tower_size))
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(networkaddr) + 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_SMB;
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 *networkaddr = NULL;
710 *endpoint = NULL;
711
712 if (tower_size < sizeof(*pipe_floor))
713 return EPT_S_NOT_REGISTERED;
714
715 tower_data += sizeof(*pipe_floor);
716 tower_size -= sizeof(*pipe_floor);
717
718 if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
719 (pipe_floor->protid != EPM_PROTOCOL_SMB) ||
720 (pipe_floor->count_rhs > tower_size))
721 return EPT_S_NOT_REGISTERED;
722
723 if (endpoint)
724 {
725 *endpoint = I_RpcAllocate(pipe_floor->count_rhs);
726 if (!*endpoint)
727 return RPC_S_OUT_OF_RESOURCES;
728 memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
729 }
730
731 return RPC_S_OK;
732 }
733
734 /**** ncacn_ip_tcp support ****/
735
736 typedef struct _RpcConnection_tcp
737 {
738 RpcConnection common;
739 int sock;
740 int cancel_fds[2];
741 } RpcConnection_tcp;
742
743 static RpcConnection *rpcrt4_conn_tcp_alloc(void)
744 {
745 RpcConnection_tcp *tcpc;
746 tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
747 if (tcpc == NULL)
748 return NULL;
749 tcpc->sock = -1;
750 if (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0)
751 {
752 ERR("socketpair() failed: %s\n", strerror(errno));
753 HeapFree(GetProcessHeap(), 0, tcpc);
754 return NULL;
755 }
756 return &tcpc->common;
757 }
758
759 static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection)
760 {
761 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
762 int sock;
763 int ret;
764 struct addrinfo *ai;
765 struct addrinfo *ai_cur;
766 struct addrinfo hints;
767
768 TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
769
770 if (tcpc->sock != -1)
771 return RPC_S_OK;
772
773 hints.ai_flags = 0;
774 hints.ai_family = PF_UNSPEC;
775 hints.ai_socktype = SOCK_STREAM;
776 hints.ai_protocol = IPPROTO_TCP;
777 hints.ai_addrlen = 0;
778 hints.ai_addr = NULL;
779 hints.ai_canonname = NULL;
780 hints.ai_next = NULL;
781
782 ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai);
783 if (ret)
784 {
785 ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
786 Connection->Endpoint, gai_strerror(ret));
787 return RPC_S_SERVER_UNAVAILABLE;
788 }
789
790 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
791 {
792 int val;
793
794 if (TRACE_ON(rpc))
795 {
796 char host[256];
797 char service[256];
798 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
799 host, sizeof(host), service, sizeof(service),
800 NI_NUMERICHOST | NI_NUMERICSERV);
801 TRACE("trying %s:%s\n", host, service);
802 }
803
804 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
805 if (sock == -1)
806 {
807 WARN("socket() failed: %s\n", strerror(errno));
808 continue;
809 }
810
811 if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
812 {
813 WARN("connect() failed: %s\n", strerror(errno));
814 closesocket(sock);
815 continue;
816 }
817
818 /* RPC depends on having minimal latency so disable the Nagle algorithm */
819 val = 1;
820 setsockopt(sock, SOL_TCP, TCP_NODELAY, &val, sizeof(val));
821 fcntl(sock, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
822
823 tcpc->sock = sock;
824
825 freeaddrinfo(ai);
826 TRACE("connected\n");
827 return RPC_S_OK;
828 }
829
830 freeaddrinfo(ai);
831 ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint);
832 return RPC_S_SERVER_UNAVAILABLE;
833 }
834
835 static RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
836 {
837 RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
838 int sock;
839 int ret;
840 struct addrinfo *ai;
841 struct addrinfo *ai_cur;
842 struct addrinfo hints;
843 RpcConnection *first_connection = NULL;
844
845 TRACE("(%p, %s)\n", protseq, endpoint);
846
847 hints.ai_flags = AI_PASSIVE /* for non-localhost addresses */;
848 hints.ai_family = PF_UNSPEC;
849 hints.ai_socktype = SOCK_STREAM;
850 hints.ai_protocol = IPPROTO_TCP;
851 hints.ai_addrlen = 0;
852 hints.ai_addr = NULL;
853 hints.ai_canonname = NULL;
854 hints.ai_next = NULL;
855
856 ret = getaddrinfo(NULL, endpoint, &hints, &ai);
857 if (ret)
858 {
859 ERR("getaddrinfo for port %s failed: %s\n", endpoint,
860 gai_strerror(ret));
861 if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
862 return RPC_S_INVALID_ENDPOINT_FORMAT;
863 return RPC_S_CANT_CREATE_ENDPOINT;
864 }
865
866 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
867 {
868 RpcConnection_tcp *tcpc;
869 RPC_STATUS create_status;
870
871 if (TRACE_ON(rpc))
872 {
873 char host[256];
874 char service[256];
875 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
876 host, sizeof(host), service, sizeof(service),
877 NI_NUMERICHOST | NI_NUMERICSERV);
878 TRACE("trying %s:%s\n", host, service);
879 }
880
881 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
882 if (sock == -1)
883 {
884 WARN("socket() failed: %s\n", strerror(errno));
885 status = RPC_S_CANT_CREATE_ENDPOINT;
886 continue;
887 }
888
889 ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
890 if (ret < 0)
891 {
892 WARN("bind failed: %s\n", strerror(errno));
893 closesocket(sock);
894 if (errno == EADDRINUSE)
895 status = RPC_S_DUPLICATE_ENDPOINT;
896 else
897 status = RPC_S_CANT_CREATE_ENDPOINT;
898 continue;
899 }
900 create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
901 protseq->Protseq, NULL,
902 endpoint, NULL, NULL, NULL);
903 if (create_status != RPC_S_OK)
904 {
905 closesocket(sock);
906 status = create_status;
907 continue;
908 }
909
910 tcpc->sock = sock;
911 ret = listen(sock, protseq->MaxCalls);
912 if (ret < 0)
913 {
914 WARN("listen failed: %s\n", strerror(errno));
915 RPCRT4_DestroyConnection(&tcpc->common);
916 status = RPC_S_OUT_OF_RESOURCES;
917 continue;
918 }
919 /* need a non-blocking socket, otherwise accept() has a potential
920 * race-condition (poll() says it is readable, connection drops,
921 * and accept() blocks until the next connection comes...)
922 */
923 ret = fcntl(sock, F_SETFL, O_NONBLOCK);
924 if (ret < 0)
925 {
926 WARN("couldn't make socket non-blocking, error %d\n", ret);
927 RPCRT4_DestroyConnection(&tcpc->common);
928 status = RPC_S_OUT_OF_RESOURCES;
929 continue;
930 }
931
932 tcpc->common.Next = first_connection;
933 first_connection = &tcpc->common;
934 }
935
936 freeaddrinfo(ai);
937
938 /* if at least one connection was created for an endpoint then
939 * return success */
940 if (first_connection)
941 {
942 RpcConnection *conn;
943
944 /* find last element in list */
945 for (conn = first_connection; conn->Next; conn = conn->Next)
946 ;
947
948 EnterCriticalSection(&protseq->cs);
949 conn->Next = protseq->conn;
950 protseq->conn = first_connection;
951 LeaveCriticalSection(&protseq->cs);
952
953 TRACE("listening on %s\n", endpoint);
954 return RPC_S_OK;
955 }
956
957 ERR("couldn't listen on port %s\n", endpoint);
958 return status;
959 }
960
961 static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
962 {
963 int ret;
964 struct sockaddr_in address;
965 socklen_t addrsize;
966 RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
967 RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
968
969 addrsize = sizeof(address);
970 ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
971 if (ret < 0)
972 {
973 ERR("Failed to accept a TCP connection: error %d\n", ret);
974 return RPC_S_OUT_OF_RESOURCES;
975 }
976 /* reset to blocking behaviour */
977 fcntl(ret, F_SETFL, 0);
978 client->sock = ret;
979 TRACE("Accepted a new TCP connection\n");
980 return RPC_S_OK;
981 }
982
983 static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
984 void *buffer, unsigned int count)
985 {
986 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
987 int bytes_read = 0;
988 do
989 {
990 int r = recv(tcpc->sock, (char *)buffer + bytes_read, count - bytes_read, 0);
991 if (!r)
992 return -1;
993 else if (r > 0)
994 bytes_read += r;
995 else if (errno != EAGAIN)
996 {
997 WARN("recv() failed: %s\n", strerror(errno));
998 return -1;
999 }
1000 else
1001 {
1002 struct pollfd pfds[2];
1003 pfds[0].fd = tcpc->sock;
1004 pfds[0].events = POLLIN;
1005 pfds[1].fd = tcpc->cancel_fds[0];
1006 pfds[1].events = POLLIN;
1007 if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1008 {
1009 ERR("poll() failed: %s\n", strerror(errno));
1010 return -1;
1011 }
1012 if (pfds[1].revents & POLLIN) /* canceled */
1013 {
1014 char dummy;
1015 read(pfds[1].fd, &dummy, sizeof(dummy));
1016 return -1;
1017 }
1018 }
1019 } while (bytes_read != count);
1020 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_read);
1021 return bytes_read;
1022 }
1023
1024 static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
1025 const void *buffer, unsigned int count)
1026 {
1027 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1028 int bytes_written = 0;
1029 do
1030 {
1031 int r = send(tcpc->sock, (const char *)buffer + bytes_written, count - bytes_written, 0);
1032 if (r >= 0)
1033 bytes_written += r;
1034 else if (errno != EAGAIN)
1035 return -1;
1036 else
1037 {
1038 struct pollfd pfd;
1039 pfd.fd = tcpc->sock;
1040 pfd.events = POLLOUT;
1041 if (poll(&pfd, 1, -1 /* infinite */) == -1 && errno != EINTR)
1042 {
1043 ERR("poll() failed: %s\n", strerror(errno));
1044 return -1;
1045 }
1046 }
1047 } while (bytes_written != count);
1048 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_written);
1049 return bytes_written;
1050 }
1051
1052 static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
1053 {
1054 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1055
1056 TRACE("%d\n", tcpc->sock);
1057
1058 if (tcpc->sock != -1)
1059 closesocket(tcpc->sock);
1060 tcpc->sock = -1;
1061 close(tcpc->cancel_fds[0]);
1062 close(tcpc->cancel_fds[1]);
1063 return 0;
1064 }
1065
1066 static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection)
1067 {
1068 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1069 char dummy = 1;
1070
1071 TRACE("%p\n", Connection);
1072
1073 write(tcpc->cancel_fds[1], &dummy, 1);
1074 }
1075
1076 static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection)
1077 {
1078 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1079 struct pollfd pfds[2];
1080
1081 TRACE("%p\n", Connection);
1082
1083 pfds[0].fd = tcpc->sock;
1084 pfds[0].events = POLLIN;
1085 pfds[1].fd = tcpc->cancel_fds[0];
1086 pfds[1].events = POLLIN;
1087 if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1088 {
1089 ERR("poll() failed: %s\n", strerror(errno));
1090 return -1;
1091 }
1092 if (pfds[1].revents & POLLIN) /* canceled */
1093 {
1094 char dummy;
1095 read(pfds[1].fd, &dummy, sizeof(dummy));
1096 return -1;
1097 }
1098
1099 return 0;
1100 }
1101
1102 static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
1103 const char *networkaddr,
1104 const char *endpoint)
1105 {
1106 twr_tcp_floor_t *tcp_floor;
1107 twr_ipv4_floor_t *ipv4_floor;
1108 struct addrinfo *ai;
1109 struct addrinfo hints;
1110 int ret;
1111 size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
1112
1113 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
1114
1115 if (!tower_data)
1116 return size;
1117
1118 tcp_floor = (twr_tcp_floor_t *)tower_data;
1119 tower_data += sizeof(*tcp_floor);
1120
1121 ipv4_floor = (twr_ipv4_floor_t *)tower_data;
1122
1123 tcp_floor->count_lhs = sizeof(tcp_floor->protid);
1124 tcp_floor->protid = EPM_PROTOCOL_TCP;
1125 tcp_floor->count_rhs = sizeof(tcp_floor->port);
1126
1127 ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
1128 ipv4_floor->protid = EPM_PROTOCOL_IP;
1129 ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
1130
1131 hints.ai_flags = AI_NUMERICHOST;
1132 /* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
1133 hints.ai_family = PF_INET;
1134 hints.ai_socktype = SOCK_STREAM;
1135 hints.ai_protocol = IPPROTO_TCP;
1136 hints.ai_addrlen = 0;
1137 hints.ai_addr = NULL;
1138 hints.ai_canonname = NULL;
1139 hints.ai_next = NULL;
1140
1141 ret = getaddrinfo(networkaddr, endpoint, &hints, &ai);
1142 if (ret)
1143 {
1144 ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
1145 if (ret)
1146 {
1147 ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
1148 return 0;
1149 }
1150 }
1151
1152 if (ai->ai_family == PF_INET)
1153 {
1154 const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
1155 tcp_floor->port = sin->sin_port;
1156 ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
1157 }
1158 else
1159 {
1160 ERR("unexpected protocol family %d\n", ai->ai_family);
1161 return 0;
1162 }
1163
1164 freeaddrinfo(ai);
1165
1166 return size;
1167 }
1168
1169 static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
1170 size_t tower_size,
1171 char **networkaddr,
1172 char **endpoint)
1173 {
1174 const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
1175 const twr_ipv4_floor_t *ipv4_floor;
1176 struct in_addr in_addr;
1177
1178 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
1179
1180 if (tower_size < sizeof(*tcp_floor))
1181 return EPT_S_NOT_REGISTERED;
1182
1183 tower_data += sizeof(*tcp_floor);
1184 tower_size -= sizeof(*tcp_floor);
1185
1186 if (tower_size < sizeof(*ipv4_floor))
1187 return EPT_S_NOT_REGISTERED;
1188
1189 ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
1190
1191 if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
1192 (tcp_floor->protid != EPM_PROTOCOL_TCP) ||
1193 (tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
1194 (ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
1195 (ipv4_floor->protid != EPM_PROTOCOL_IP) ||
1196 (ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
1197 return EPT_S_NOT_REGISTERED;
1198
1199 if (endpoint)
1200 {
1201 *endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
1202 if (!*endpoint)
1203 return RPC_S_OUT_OF_RESOURCES;
1204 sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
1205 }
1206
1207 if (networkaddr)
1208 {
1209 *networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
1210 if (!*networkaddr)
1211 {
1212 if (endpoint)
1213 {
1214 I_RpcFree(*endpoint);
1215 *endpoint = NULL;
1216 }
1217 return RPC_S_OUT_OF_RESOURCES;
1218 }
1219 in_addr.s_addr = ipv4_floor->ipv4addr;
1220 if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
1221 {
1222 ERR("inet_ntop: %s\n", strerror(errno));
1223 I_RpcFree(*networkaddr);
1224 *networkaddr = NULL;
1225 if (endpoint)
1226 {
1227 I_RpcFree(*endpoint);
1228 *endpoint = NULL;
1229 }
1230 return EPT_S_NOT_REGISTERED;
1231 }
1232 }
1233
1234 return RPC_S_OK;
1235 }
1236
1237 typedef struct _RpcServerProtseq_sock
1238 {
1239 RpcServerProtseq common;
1240 int mgr_event_rcv;
1241 int mgr_event_snd;
1242 } RpcServerProtseq_sock;
1243
1244 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1245 {
1246 RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1247 if (ps)
1248 {
1249 int fds[2];
1250 if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
1251 {
1252 fcntl(fds[0], F_SETFL, O_NONBLOCK);
1253 fcntl(fds[1], F_SETFL, O_NONBLOCK);
1254 ps->mgr_event_rcv = fds[0];
1255 ps->mgr_event_snd = fds[1];
1256 }
1257 else
1258 {
1259 ERR("socketpair failed with error %s\n", strerror(errno));
1260 HeapFree(GetProcessHeap(), 0, ps);
1261 return NULL;
1262 }
1263 }
1264 return &ps->common;
1265 }
1266
1267 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1268 {
1269 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1270 char dummy = 1;
1271 write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
1272 }
1273
1274 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1275 {
1276 struct pollfd *poll_info = prev_array;
1277 RpcConnection_tcp *conn;
1278 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1279
1280 EnterCriticalSection(&protseq->cs);
1281
1282 /* open and count connections */
1283 *count = 1;
1284 conn = (RpcConnection_tcp *)protseq->conn;
1285 while (conn) {
1286 if (conn->sock != -1)
1287 (*count)++;
1288 conn = (RpcConnection_tcp *)conn->common.Next;
1289 }
1290
1291 /* make array of connections */
1292 if (poll_info)
1293 poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
1294 else
1295 poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
1296 if (!poll_info)
1297 {
1298 ERR("couldn't allocate poll_info\n");
1299 LeaveCriticalSection(&protseq->cs);
1300 return NULL;
1301 }
1302
1303 poll_info[0].fd = sockps->mgr_event_rcv;
1304 poll_info[0].events = POLLIN;
1305 *count = 1;
1306 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1307 while (conn) {
1308 if (conn->sock != -1)
1309 {
1310 poll_info[*count].fd = conn->sock;
1311 poll_info[*count].events = POLLIN;
1312 (*count)++;
1313 }
1314 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1315 }
1316 LeaveCriticalSection(&protseq->cs);
1317 return poll_info;
1318 }
1319
1320 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1321 {
1322 HeapFree(GetProcessHeap(), 0, array);
1323 }
1324
1325 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1326 {
1327 struct pollfd *poll_info = wait_array;
1328 int ret, i;
1329 RpcConnection *cconn;
1330 RpcConnection_tcp *conn;
1331
1332 if (!poll_info)
1333 return -1;
1334
1335 ret = poll(poll_info, count, -1);
1336 if (ret < 0)
1337 {
1338 ERR("poll failed with error %d\n", ret);
1339 return -1;
1340 }
1341
1342 for (i = 0; i < count; i++)
1343 if (poll_info[i].revents & POLLIN)
1344 {
1345 /* RPC server event */
1346 if (i == 0)
1347 {
1348 char dummy;
1349 read(poll_info[0].fd, &dummy, sizeof(dummy));
1350 return 0;
1351 }
1352
1353 /* find which connection got a RPC */
1354 EnterCriticalSection(&protseq->cs);
1355 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1356 while (conn) {
1357 if (poll_info[i].fd == conn->sock) break;
1358 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1359 }
1360 cconn = NULL;
1361 if (conn)
1362 RPCRT4_SpawnConnection(&cconn, &conn->common);
1363 else
1364 ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
1365 LeaveCriticalSection(&protseq->cs);
1366 if (cconn)
1367 RPCRT4_new_client(cconn);
1368 else
1369 return -1;
1370 }
1371
1372 return 1;
1373 }
1374
1375 static const struct connection_ops conn_protseq_list[] = {
1376 { "ncacn_np",
1377 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
1378 rpcrt4_conn_np_alloc,
1379 rpcrt4_ncacn_np_open,
1380 rpcrt4_ncacn_np_handoff,
1381 rpcrt4_conn_np_read,
1382 rpcrt4_conn_np_write,
1383 rpcrt4_conn_np_close,
1384 rpcrt4_conn_np_cancel_call,
1385 rpcrt4_conn_np_wait_for_incoming_data,
1386 rpcrt4_ncacn_np_get_top_of_tower,
1387 rpcrt4_ncacn_np_parse_top_of_tower,
1388 },
1389 { "ncalrpc",
1390 { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
1391 rpcrt4_conn_np_alloc,
1392 rpcrt4_ncalrpc_open,
1393 rpcrt4_ncalrpc_handoff,
1394 rpcrt4_conn_np_read,
1395 rpcrt4_conn_np_write,
1396 rpcrt4_conn_np_close,
1397 rpcrt4_conn_np_cancel_call,
1398 rpcrt4_conn_np_wait_for_incoming_data,
1399 rpcrt4_ncalrpc_get_top_of_tower,
1400 rpcrt4_ncalrpc_parse_top_of_tower,
1401 },
1402 { "ncacn_ip_tcp",
1403 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
1404 rpcrt4_conn_tcp_alloc,
1405 rpcrt4_ncacn_ip_tcp_open,
1406 rpcrt4_conn_tcp_handoff,
1407 rpcrt4_conn_tcp_read,
1408 rpcrt4_conn_tcp_write,
1409 rpcrt4_conn_tcp_close,
1410 rpcrt4_conn_tcp_cancel_call,
1411 rpcrt4_conn_tcp_wait_for_incoming_data,
1412 rpcrt4_ncacn_ip_tcp_get_top_of_tower,
1413 rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
1414 }
1415 };
1416
1417
1418 static const struct protseq_ops protseq_list[] =
1419 {
1420 {
1421 "ncacn_np",
1422 rpcrt4_protseq_np_alloc,
1423 rpcrt4_protseq_np_signal_state_changed,
1424 rpcrt4_protseq_np_get_wait_array,
1425 rpcrt4_protseq_np_free_wait_array,
1426 rpcrt4_protseq_np_wait_for_new_connection,
1427 rpcrt4_protseq_ncacn_np_open_endpoint,
1428 },
1429 {
1430 "ncalrpc",
1431 rpcrt4_protseq_np_alloc,
1432 rpcrt4_protseq_np_signal_state_changed,
1433 rpcrt4_protseq_np_get_wait_array,
1434 rpcrt4_protseq_np_free_wait_array,
1435 rpcrt4_protseq_np_wait_for_new_connection,
1436 rpcrt4_protseq_ncalrpc_open_endpoint,
1437 },
1438 {
1439 "ncacn_ip_tcp",
1440 rpcrt4_protseq_sock_alloc,
1441 rpcrt4_protseq_sock_signal_state_changed,
1442 rpcrt4_protseq_sock_get_wait_array,
1443 rpcrt4_protseq_sock_free_wait_array,
1444 rpcrt4_protseq_sock_wait_for_new_connection,
1445 rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
1446 },
1447 };
1448
1449 #define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
1450
1451 const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
1452 {
1453 int i;
1454 for(i=0; i<ARRAYSIZE(protseq_list); i++)
1455 if (!strcmp(protseq_list[i].name, protseq))
1456 return &protseq_list[i];
1457 return NULL;
1458 }
1459
1460 static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
1461 {
1462 int i;
1463 for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
1464 if (!strcmp(conn_protseq_list[i].name, protseq))
1465 return &conn_protseq_list[i];
1466 return NULL;
1467 }
1468
1469 /**** interface to rest of code ****/
1470
1471 RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
1472 {
1473 TRACE("(Connection == ^%p)\n", Connection);
1474
1475 assert(!Connection->server);
1476 return Connection->ops->open_connection_client(Connection);
1477 }
1478
1479 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
1480 {
1481 TRACE("(Connection == ^%p)\n", Connection);
1482 if (SecIsValidHandle(&Connection->ctx))
1483 {
1484 DeleteSecurityContext(&Connection->ctx);
1485 SecInvalidateHandle(&Connection->ctx);
1486 }
1487 rpcrt4_conn_close(Connection);
1488 return RPC_S_OK;
1489 }
1490
1491 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
1492 LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
1493 LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
1494 {
1495 const struct connection_ops *ops;
1496 RpcConnection* NewConnection;
1497
1498 ops = rpcrt4_get_conn_protseq_ops(Protseq);
1499 if (!ops)
1500 {
1501 FIXME("not supported for protseq %s\n", Protseq);
1502 return RPC_S_PROTSEQ_NOT_SUPPORTED;
1503 }
1504
1505 NewConnection = ops->alloc();
1506 NewConnection->Next = NULL;
1507 NewConnection->server_binding = NULL;
1508 NewConnection->server = server;
1509 NewConnection->ops = ops;
1510 NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
1511 NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
1512 NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
1513 NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
1514 memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
1515 NewConnection->NextCallId = 1;
1516
1517 SecInvalidateHandle(&NewConnection->ctx);
1518 memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
1519 NewConnection->attr = 0;
1520 if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
1521 NewConnection->AuthInfo = AuthInfo;
1522 NewConnection->encryption_auth_len = 0;
1523 NewConnection->signature_auth_len = 0;
1524 if (QOS) RpcQualityOfService_AddRef(QOS);
1525 NewConnection->QOS = QOS;
1526
1527 list_init(&NewConnection->conn_pool_entry);
1528 NewConnection->async_state = NULL;
1529
1530 TRACE("connection: %p\n", NewConnection);
1531 *Connection = NewConnection;
1532
1533 return RPC_S_OK;
1534 }
1535
1536
1537 RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
1538 {
1539 RPC_STATUS err;
1540
1541 err = RPCRT4_CreateConnection(Connection, OldConnection->server,
1542 rpcrt4_conn_get_name(OldConnection),
1543 OldConnection->NetworkAddr,
1544 OldConnection->Endpoint, NULL,
1545 OldConnection->AuthInfo, OldConnection->QOS);
1546 if (err == RPC_S_OK)
1547 rpcrt4_conn_handoff(OldConnection, *Connection);
1548 return err;
1549 }
1550
1551 RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection)
1552 {
1553 TRACE("connection: %p\n", Connection);
1554
1555 RPCRT4_CloseConnection(Connection);
1556 RPCRT4_strfree(Connection->Endpoint);
1557 RPCRT4_strfree(Connection->NetworkAddr);
1558 HeapFree(GetProcessHeap(), 0, Connection->NetworkOptions);
1559 if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
1560 if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
1561
1562 /* server-only */
1563 if (Connection->server_binding) RPCRT4_ReleaseBinding(Connection->server_binding);
1564
1565 HeapFree(GetProcessHeap(), 0, Connection);
1566 return RPC_S_OK;
1567 }
1568
1569 RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
1570 size_t *tower_size,
1571 const char *protseq,
1572 const char *networkaddr,
1573 const char *endpoint)
1574 {
1575 twr_empty_floor_t *protocol_floor;
1576 const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
1577
1578 *tower_size = 0;
1579
1580 if (!protseq_ops)
1581 return RPC_S_INVALID_RPC_PROTSEQ;
1582
1583 if (!tower_data)
1584 {
1585 *tower_size = sizeof(*protocol_floor);
1586 *tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
1587 return RPC_S_OK;
1588 }
1589
1590 protocol_floor = (twr_empty_floor_t *)tower_data;
1591 protocol_floor->count_lhs = sizeof(protocol_floor->protid);
1592 protocol_floor->protid = protseq_ops->epm_protocols[0];
1593 protocol_floor->count_rhs = 0;
1594
1595 tower_data += sizeof(*protocol_floor);
1596
1597 *tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
1598 if (!*tower_size)
1599 return EPT_S_NOT_REGISTERED;
1600
1601 *tower_size += sizeof(*protocol_floor);
1602
1603 return RPC_S_OK;
1604 }
1605
1606 RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
1607 size_t tower_size,
1608 char **protseq,
1609 char **networkaddr,
1610 char **endpoint)
1611 {
1612 const twr_empty_floor_t *protocol_floor;
1613 const twr_empty_floor_t *floor4;
1614 const struct connection_ops *protseq_ops = NULL;
1615 RPC_STATUS status;
1616 int i;
1617
1618 if (tower_size < sizeof(*protocol_floor))
1619 return EPT_S_NOT_REGISTERED;
1620
1621 protocol_floor = (const twr_empty_floor_t *)tower_data;
1622 tower_data += sizeof(*protocol_floor);
1623 tower_size -= sizeof(*protocol_floor);
1624 if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
1625 (protocol_floor->count_rhs > tower_size))
1626 return EPT_S_NOT_REGISTERED;
1627 tower_data += protocol_floor->count_rhs;
1628 tower_size -= protocol_floor->count_rhs;
1629
1630 floor4 = (const twr_empty_floor_t *)tower_data;
1631 if ((tower_size < sizeof(*floor4)) ||
1632 (floor4->count_lhs != sizeof(floor4->protid)))
1633 return EPT_S_NOT_REGISTERED;
1634
1635 for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
1636 if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
1637 (floor4->protid == conn_protseq_list[i].epm_protocols[1]))
1638 {
1639 protseq_ops = &conn_protseq_list[i];
1640 break;
1641 }
1642
1643 if (!protseq_ops)
1644 return EPT_S_NOT_REGISTERED;
1645
1646 status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
1647
1648 if ((status == RPC_S_OK) && protseq)
1649 {
1650 *protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
1651 strcpy(*protseq, protseq_ops->name);
1652 }
1653
1654 return status;
1655 }
1656
1657 /***********************************************************************
1658 * RpcNetworkIsProtseqValidW (RPCRT4.@)
1659 *
1660 * Checks if the given protocol sequence is known by the RPC system.
1661 * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
1662 *
1663 */
1664 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
1665 {
1666 char ps[0x10];
1667
1668 WideCharToMultiByte(CP_ACP, 0, protseq, -1,
1669 ps, sizeof ps, NULL, NULL);
1670 if (rpcrt4_get_conn_protseq_ops(ps))
1671 return RPC_S_OK;
1672
1673 FIXME("Unknown protseq %s\n", debugstr_w(protseq));
1674
1675 return RPC_S_INVALID_RPC_PROTSEQ;
1676 }
1677
1678 /***********************************************************************
1679 * RpcNetworkIsProtseqValidA (RPCRT4.@)
1680 */
1681 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
1682 {
1683 UNICODE_STRING protseqW;
1684
1685 if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
1686 {
1687 RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
1688 RtlFreeUnicodeString(&protseqW);
1689 return ret;
1690 }
1691 return RPC_S_OUT_OF_MEMORY;
1692 }
Windows API implementation