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fusion: Implement CreateAssemblyCache.
[wine.git] / dlls / rpcrt4 / rpc_transport.c
blob822807b077a30cf743b82c238fff2c439e854a97
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 if (ConnectNamedPipe(npc->pipe, &npc->ovl))
122 return RPC_S_OK;
123
124 if (GetLastError() == ERROR_PIPE_CONNECTED) {
125 SetEvent(npc->ovl.hEvent);
126 return RPC_S_OK;
127 }
128 if (GetLastError() == ERROR_IO_PENDING) {
129 /* will be completed in rpcrt4_protseq_np_wait_for_new_connection */
130 return RPC_S_OK;
131 }
132 npc->listening = FALSE;
133 WARN("Couldn't ConnectNamedPipe (error was %d)\n", GetLastError());
134 return RPC_S_OUT_OF_RESOURCES;
135 }
136
137 static RPC_STATUS rpcrt4_conn_create_pipe(RpcConnection *Connection, LPCSTR pname)
138 {
139 RpcConnection_np *npc = (RpcConnection_np *) Connection;
140 TRACE("listening on %s\n", pname);
141
142 npc->pipe = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX,
143 PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE,
144 PIPE_UNLIMITED_INSTANCES,
145 RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
146 if (npc->pipe == INVALID_HANDLE_VALUE) {
147 WARN("CreateNamedPipe failed with error %d\n", GetLastError());
148 if (GetLastError() == ERROR_FILE_EXISTS)
149 return RPC_S_DUPLICATE_ENDPOINT;
150 else
151 return RPC_S_CANT_CREATE_ENDPOINT;
152 }
153
154 memset(&npc->ovl, 0, sizeof(npc->ovl));
155 npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
156
157 /* Note: we don't call ConnectNamedPipe here because it must be done in the
158 * server thread as the thread must be alertable */
159 return RPC_S_OK;
160 }
161
162 static RPC_STATUS rpcrt4_conn_open_pipe(RpcConnection *Connection, LPCSTR pname, BOOL wait)
163 {
164 RpcConnection_np *npc = (RpcConnection_np *) Connection;
165 HANDLE pipe;
166 DWORD err, dwMode;
167
168 TRACE("connecting to %s\n", pname);
169
170 while (TRUE) {
171 DWORD dwFlags = 0;
172 if (Connection->QOS)
173 {
174 dwFlags = SECURITY_SQOS_PRESENT;
175 switch (Connection->QOS->qos->ImpersonationType)
176 {
177 case RPC_C_IMP_LEVEL_DEFAULT:
178 /* FIXME: what to do here? */
179 break;
180 case RPC_C_IMP_LEVEL_ANONYMOUS:
181 dwFlags |= SECURITY_ANONYMOUS;
182 break;
183 case RPC_C_IMP_LEVEL_IDENTIFY:
184 dwFlags |= SECURITY_IDENTIFICATION;
185 break;
186 case RPC_C_IMP_LEVEL_IMPERSONATE:
187 dwFlags |= SECURITY_IMPERSONATION;
188 break;
189 case RPC_C_IMP_LEVEL_DELEGATE:
190 dwFlags |= SECURITY_DELEGATION;
191 break;
192 }
193 if (Connection->QOS->qos->IdentityTracking == RPC_C_QOS_IDENTIFY_DYNAMIC)
194 dwFlags |= SECURITY_CONTEXT_TRACKING;
195 }
196 pipe = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
197 OPEN_EXISTING, dwFlags, 0);
198 if (pipe != INVALID_HANDLE_VALUE) break;
199 err = GetLastError();
200 if (err == ERROR_PIPE_BUSY) {
201 TRACE("connection failed, error=%x\n", err);
202 return RPC_S_SERVER_TOO_BUSY;
203 }
204 if (!wait)
205 return RPC_S_SERVER_UNAVAILABLE;
206 if (!WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
207 err = GetLastError();
208 WARN("connection failed, error=%x\n", err);
209 return RPC_S_SERVER_UNAVAILABLE;
210 }
211 }
212
213 /* success */
214 memset(&npc->ovl, 0, sizeof(npc->ovl));
215 /* pipe is connected; change to message-read mode. */
216 dwMode = PIPE_READMODE_MESSAGE;
217 SetNamedPipeHandleState(pipe, &dwMode, NULL, NULL);
218 npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
219 npc->pipe = pipe;
220
221 return RPC_S_OK;
222 }
223
224 static RPC_STATUS rpcrt4_ncalrpc_open(RpcConnection* Connection)
225 {
226 RpcConnection_np *npc = (RpcConnection_np *) Connection;
227 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
228 RPC_STATUS r;
229 LPSTR pname;
230
231 /* already connected? */
232 if (npc->pipe)
233 return RPC_S_OK;
234
235 /* protseq=ncalrpc: supposed to use NT LPC ports,
236 * but we'll implement it with named pipes for now */
237 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
238 strcat(strcpy(pname, prefix), Connection->Endpoint);
239 r = rpcrt4_conn_open_pipe(Connection, pname, TRUE);
240 I_RpcFree(pname);
241
242 return r;
243 }
244
245 static RPC_STATUS rpcrt4_protseq_ncalrpc_open_endpoint(RpcServerProtseq* protseq, LPSTR endpoint)
246 {
247 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
248 RPC_STATUS r;
249 LPSTR pname;
250 RpcConnection *Connection;
251
252 r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
253 endpoint, NULL, NULL, NULL);
254 if (r != RPC_S_OK)
255 return r;
256
257 /* protseq=ncalrpc: supposed to use NT LPC ports,
258 * but we'll implement it with named pipes for now */
259 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
260 strcat(strcpy(pname, prefix), Connection->Endpoint);
261 r = rpcrt4_conn_create_pipe(Connection, pname);
262 I_RpcFree(pname);
263
264 EnterCriticalSection(&protseq->cs);
265 Connection->Next = protseq->conn;
266 protseq->conn = Connection;
267 LeaveCriticalSection(&protseq->cs);
268
269 return r;
270 }
271
272 static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection)
273 {
274 RpcConnection_np *npc = (RpcConnection_np *) Connection;
275 static const char prefix[] = "\\\\.";
276 RPC_STATUS r;
277 LPSTR pname;
278
279 /* already connected? */
280 if (npc->pipe)
281 return RPC_S_OK;
282
283 /* protseq=ncacn_np: named pipes */
284 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
285 strcat(strcpy(pname, prefix), Connection->Endpoint);
286 r = rpcrt4_conn_open_pipe(Connection, pname, FALSE);
287 I_RpcFree(pname);
288
289 return r;
290 }
291
292 static RPC_STATUS rpcrt4_protseq_ncacn_np_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
293 {
294 static const char prefix[] = "\\\\.";
295 RPC_STATUS r;
296 LPSTR pname;
297 RpcConnection *Connection;
298
299 r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
300 endpoint, NULL, NULL, NULL);
301 if (r != RPC_S_OK)
302 return r;
303
304 /* protseq=ncacn_np: named pipes */
305 pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
306 strcat(strcpy(pname, prefix), Connection->Endpoint);
307 r = rpcrt4_conn_create_pipe(Connection, pname);
308 I_RpcFree(pname);
309
310 EnterCriticalSection(&protseq->cs);
311 Connection->Next = protseq->conn;
312 protseq->conn = Connection;
313 LeaveCriticalSection(&protseq->cs);
314
315 return r;
316 }
317
318 static void rpcrt4_conn_np_handoff(RpcConnection_np *old_npc, RpcConnection_np *new_npc)
319 {
320 /* because of the way named pipes work, we'll transfer the connected pipe
321 * to the child, then reopen the server binding to continue listening */
322
323 new_npc->pipe = old_npc->pipe;
324 new_npc->ovl = old_npc->ovl;
325 old_npc->pipe = 0;
326 memset(&old_npc->ovl, 0, sizeof(old_npc->ovl));
327 old_npc->listening = FALSE;
328 }
329
330 static RPC_STATUS rpcrt4_ncacn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
331 {
332 RPC_STATUS status;
333 LPSTR pname;
334 static const char prefix[] = "\\\\.";
335
336 rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
337
338 pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
339 strcat(strcpy(pname, prefix), old_conn->Endpoint);
340 status = rpcrt4_conn_create_pipe(old_conn, pname);
341 I_RpcFree(pname);
342
343 return status;
344 }
345
346 static RPC_STATUS rpcrt4_ncalrpc_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
347 {
348 RPC_STATUS status;
349 LPSTR pname;
350 static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
351
352 TRACE("%s\n", old_conn->Endpoint);
353
354 rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
355
356 pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
357 strcat(strcpy(pname, prefix), old_conn->Endpoint);
358 status = rpcrt4_conn_create_pipe(old_conn, pname);
359 I_RpcFree(pname);
360
361 return status;
362 }
363
364 static int rpcrt4_conn_np_read(RpcConnection *Connection,
365 void *buffer, unsigned int count)
366 {
367 RpcConnection_np *npc = (RpcConnection_np *) Connection;
368 char *buf = buffer;
369 BOOL ret = TRUE;
370 unsigned int bytes_left = count;
371
372 while (bytes_left)
373 {
374 DWORD bytes_read;
375 ret = ReadFile(npc->pipe, buf, bytes_left, &bytes_read, NULL);
376 if (!ret || !bytes_read)
377 break;
378 bytes_left -= bytes_read;
379 buf += bytes_read;
380 }
381 return ret ? count : -1;
382 }
383
384 static int rpcrt4_conn_np_write(RpcConnection *Connection,
385 const void *buffer, unsigned int count)
386 {
387 RpcConnection_np *npc = (RpcConnection_np *) Connection;
388 const char *buf = buffer;
389 BOOL ret = TRUE;
390 unsigned int bytes_left = count;
391
392 while (bytes_left)
393 {
394 DWORD bytes_written;
395 ret = WriteFile(npc->pipe, buf, bytes_left, &bytes_written, NULL);
396 if (!ret || !bytes_written)
397 break;
398 bytes_left -= bytes_written;
399 buf += bytes_written;
400 }
401 return ret ? count : -1;
402 }
403
404 static int rpcrt4_conn_np_close(RpcConnection *Connection)
405 {
406 RpcConnection_np *npc = (RpcConnection_np *) Connection;
407 if (npc->pipe) {
408 FlushFileBuffers(npc->pipe);
409 CloseHandle(npc->pipe);
410 npc->pipe = 0;
411 }
412 if (npc->ovl.hEvent) {
413 CloseHandle(npc->ovl.hEvent);
414 npc->ovl.hEvent = 0;
415 }
416 return 0;
417 }
418
419 static void rpcrt4_conn_np_cancel_call(RpcConnection *Connection)
420 {
421 /* FIXME: implement when named pipe writes use overlapped I/O */
422 }
423
424 static int rpcrt4_conn_np_wait_for_incoming_data(RpcConnection *Connection)
425 {
426 /* FIXME: implement when named pipe writes use overlapped I/O */
427 return -1;
428 }
429
430 static size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
431 const char *networkaddr,
432 const char *endpoint)
433 {
434 twr_empty_floor_t *smb_floor;
435 twr_empty_floor_t *nb_floor;
436 size_t size;
437 size_t networkaddr_size;
438 size_t endpoint_size;
439
440 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
441
442 networkaddr_size = networkaddr ? strlen(networkaddr) + 1 : 1;
443 endpoint_size = endpoint ? strlen(endpoint) + 1 : 1;
444 size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
445
446 if (!tower_data)
447 return size;
448
449 smb_floor = (twr_empty_floor_t *)tower_data;
450
451 tower_data += sizeof(*smb_floor);
452
453 smb_floor->count_lhs = sizeof(smb_floor->protid);
454 smb_floor->protid = EPM_PROTOCOL_SMB;
455 smb_floor->count_rhs = endpoint_size;
456
457 if (endpoint)
458 memcpy(tower_data, endpoint, endpoint_size);
459 else
460 tower_data[0] = 0;
461 tower_data += endpoint_size;
462
463 nb_floor = (twr_empty_floor_t *)tower_data;
464
465 tower_data += sizeof(*nb_floor);
466
467 nb_floor->count_lhs = sizeof(nb_floor->protid);
468 nb_floor->protid = EPM_PROTOCOL_NETBIOS;
469 nb_floor->count_rhs = networkaddr_size;
470
471 if (networkaddr)
472 memcpy(tower_data, networkaddr, networkaddr_size);
473 else
474 tower_data[0] = 0;
475 tower_data += networkaddr_size;
476
477 return size;
478 }
479
480 static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
481 size_t tower_size,
482 char **networkaddr,
483 char **endpoint)
484 {
485 const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
486 const twr_empty_floor_t *nb_floor;
487
488 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
489
490 if (tower_size < sizeof(*smb_floor))
491 return EPT_S_NOT_REGISTERED;
492
493 tower_data += sizeof(*smb_floor);
494 tower_size -= sizeof(*smb_floor);
495
496 if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
497 (smb_floor->protid != EPM_PROTOCOL_SMB) ||
498 (smb_floor->count_rhs > tower_size))
499 return EPT_S_NOT_REGISTERED;
500
501 if (endpoint)
502 {
503 *endpoint = I_RpcAllocate(smb_floor->count_rhs);
504 if (!*endpoint)
505 return RPC_S_OUT_OF_RESOURCES;
506 memcpy(*endpoint, tower_data, smb_floor->count_rhs);
507 }
508 tower_data += smb_floor->count_rhs;
509 tower_size -= smb_floor->count_rhs;
510
511 if (tower_size < sizeof(*nb_floor))
512 return EPT_S_NOT_REGISTERED;
513
514 nb_floor = (const twr_empty_floor_t *)tower_data;
515
516 tower_data += sizeof(*nb_floor);
517 tower_size -= sizeof(*nb_floor);
518
519 if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
520 (nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
521 (nb_floor->count_rhs > tower_size))
522 return EPT_S_NOT_REGISTERED;
523
524 if (networkaddr)
525 {
526 *networkaddr = I_RpcAllocate(nb_floor->count_rhs);
527 if (!*networkaddr)
528 {
529 if (endpoint)
530 {
531 I_RpcFree(*endpoint);
532 *endpoint = NULL;
533 }
534 return RPC_S_OUT_OF_RESOURCES;
535 }
536 memcpy(*networkaddr, tower_data, nb_floor->count_rhs);
537 }
538
539 return RPC_S_OK;
540 }
541
542 typedef struct _RpcServerProtseq_np
543 {
544 RpcServerProtseq common;
545 HANDLE mgr_event;
546 } RpcServerProtseq_np;
547
548 static RpcServerProtseq *rpcrt4_protseq_np_alloc(void)
549 {
550 RpcServerProtseq_np *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
551 if (ps)
552 ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
553 return &ps->common;
554 }
555
556 static void rpcrt4_protseq_np_signal_state_changed(RpcServerProtseq *protseq)
557 {
558 RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
559 SetEvent(npps->mgr_event);
560 }
561
562 static void *rpcrt4_protseq_np_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
563 {
564 HANDLE *objs = prev_array;
565 RpcConnection_np *conn;
566 RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
567
568 EnterCriticalSection(&protseq->cs);
569
570 /* open and count connections */
571 *count = 1;
572 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
573 while (conn) {
574 rpcrt4_conn_listen_pipe(conn);
575 if (conn->ovl.hEvent)
576 (*count)++;
577 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
578 }
579
580 /* make array of connections */
581 if (objs)
582 objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
583 else
584 objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
585 if (!objs)
586 {
587 ERR("couldn't allocate objs\n");
588 LeaveCriticalSection(&protseq->cs);
589 return NULL;
590 }
591
592 objs[0] = npps->mgr_event;
593 *count = 1;
594 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
595 while (conn) {
596 if ((objs[*count] = conn->ovl.hEvent))
597 (*count)++;
598 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
599 }
600 LeaveCriticalSection(&protseq->cs);
601 return objs;
602 }
603
604 static void rpcrt4_protseq_np_free_wait_array(RpcServerProtseq *protseq, void *array)
605 {
606 HeapFree(GetProcessHeap(), 0, array);
607 }
608
609 static int rpcrt4_protseq_np_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
610 {
611 HANDLE b_handle;
612 HANDLE *objs = wait_array;
613 DWORD res;
614 RpcConnection *cconn;
615 RpcConnection_np *conn;
616
617 if (!objs)
618 return -1;
619
620 do
621 {
622 /* an alertable wait isn't strictly necessary, but due to our
623 * overlapped I/O implementation in Wine we need to free some memory
624 * by the file user APC being called, even if no completion routine was
625 * specified at the time of starting the async operation */
626 res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
627 } while (res == WAIT_IO_COMPLETION);
628
629 if (res == WAIT_OBJECT_0)
630 return 0;
631 else if (res == WAIT_FAILED)
632 {
633 ERR("wait failed with error %d\n", GetLastError());
634 return -1;
635 }
636 else
637 {
638 b_handle = objs[res - WAIT_OBJECT_0];
639 /* find which connection got a RPC */
640 EnterCriticalSection(&protseq->cs);
641 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
642 while (conn) {
643 if (b_handle == conn->ovl.hEvent) break;
644 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
645 }
646 cconn = NULL;
647 if (conn)
648 RPCRT4_SpawnConnection(&cconn, &conn->common);
649 else
650 ERR("failed to locate connection for handle %p\n", b_handle);
651 LeaveCriticalSection(&protseq->cs);
652 if (cconn)
653 {
654 RPCRT4_new_client(cconn);
655 return 1;
656 }
657 else return -1;
658 }
659 }
660
661 static size_t rpcrt4_ncalrpc_get_top_of_tower(unsigned char *tower_data,
662 const char *networkaddr,
663 const char *endpoint)
664 {
665 twr_empty_floor_t *pipe_floor;
666 size_t size;
667 size_t endpoint_size;
668
669 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
670
671 endpoint_size = strlen(networkaddr) + 1;
672 size = sizeof(*pipe_floor) + endpoint_size;
673
674 if (!tower_data)
675 return size;
676
677 pipe_floor = (twr_empty_floor_t *)tower_data;
678
679 tower_data += sizeof(*pipe_floor);
680
681 pipe_floor->count_lhs = sizeof(pipe_floor->protid);
682 pipe_floor->protid = EPM_PROTOCOL_SMB;
683 pipe_floor->count_rhs = endpoint_size;
684
685 memcpy(tower_data, endpoint, endpoint_size);
686 tower_data += endpoint_size;
687
688 return size;
689 }
690
691 static RPC_STATUS rpcrt4_ncalrpc_parse_top_of_tower(const unsigned char *tower_data,
692 size_t tower_size,
693 char **networkaddr,
694 char **endpoint)
695 {
696 const twr_empty_floor_t *pipe_floor = (const twr_empty_floor_t *)tower_data;
697
698 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
699
700 *networkaddr = NULL;
701 *endpoint = NULL;
702
703 if (tower_size < sizeof(*pipe_floor))
704 return EPT_S_NOT_REGISTERED;
705
706 tower_data += sizeof(*pipe_floor);
707 tower_size -= sizeof(*pipe_floor);
708
709 if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
710 (pipe_floor->protid != EPM_PROTOCOL_SMB) ||
711 (pipe_floor->count_rhs > tower_size))
712 return EPT_S_NOT_REGISTERED;
713
714 if (endpoint)
715 {
716 *endpoint = I_RpcAllocate(pipe_floor->count_rhs);
717 if (!*endpoint)
718 return RPC_S_OUT_OF_RESOURCES;
719 memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
720 }
721
722 return RPC_S_OK;
723 }
724
725 /**** ncacn_ip_tcp support ****/
726
727 typedef struct _RpcConnection_tcp
728 {
729 RpcConnection common;
730 int sock;
731 int cancel_fds[2];
732 } RpcConnection_tcp;
733
734 static RpcConnection *rpcrt4_conn_tcp_alloc(void)
735 {
736 RpcConnection_tcp *tcpc;
737 tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
738 if (tcpc == NULL)
739 return NULL;
740 tcpc->sock = -1;
741 if (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0)
742 {
743 ERR("socketpair() failed: %s\n", strerror(errno));
744 HeapFree(GetProcessHeap(), 0, tcpc);
745 return NULL;
746 }
747 return &tcpc->common;
748 }
749
750 static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection)
751 {
752 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
753 int sock;
754 int ret;
755 struct addrinfo *ai;
756 struct addrinfo *ai_cur;
757 struct addrinfo hints;
758
759 TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
760
761 if (tcpc->sock != -1)
762 return RPC_S_OK;
763
764 hints.ai_flags = 0;
765 hints.ai_family = PF_UNSPEC;
766 hints.ai_socktype = SOCK_STREAM;
767 hints.ai_protocol = IPPROTO_TCP;
768 hints.ai_addrlen = 0;
769 hints.ai_addr = NULL;
770 hints.ai_canonname = NULL;
771 hints.ai_next = NULL;
772
773 ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai);
774 if (ret)
775 {
776 ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
777 Connection->Endpoint, gai_strerror(ret));
778 return RPC_S_SERVER_UNAVAILABLE;
779 }
780
781 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
782 {
783 int val;
784
785 if (TRACE_ON(rpc))
786 {
787 char host[256];
788 char service[256];
789 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
790 host, sizeof(host), service, sizeof(service),
791 NI_NUMERICHOST | NI_NUMERICSERV);
792 TRACE("trying %s:%s\n", host, service);
793 }
794
795 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
796 if (sock == -1)
797 {
798 WARN("socket() failed: %s\n", strerror(errno));
799 continue;
800 }
801
802 if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
803 {
804 WARN("connect() failed: %s\n", strerror(errno));
805 closesocket(sock);
806 continue;
807 }
808
809 /* RPC depends on having minimal latency so disable the Nagle algorithm */
810 val = 1;
811 setsockopt(sock, SOL_TCP, TCP_NODELAY, &val, sizeof(val));
812 fcntl(sock, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
813
814 tcpc->sock = sock;
815
816 freeaddrinfo(ai);
817 TRACE("connected\n");
818 return RPC_S_OK;
819 }
820
821 freeaddrinfo(ai);
822 ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint);
823 return RPC_S_SERVER_UNAVAILABLE;
824 }
825
826 static RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
827 {
828 RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
829 int sock;
830 int ret;
831 struct addrinfo *ai;
832 struct addrinfo *ai_cur;
833 struct addrinfo hints;
834 RpcConnection *first_connection = NULL;
835
836 TRACE("(%p, %s)\n", protseq, endpoint);
837
838 hints.ai_flags = AI_PASSIVE /* for non-localhost addresses */;
839 hints.ai_family = PF_UNSPEC;
840 hints.ai_socktype = SOCK_STREAM;
841 hints.ai_protocol = IPPROTO_TCP;
842 hints.ai_addrlen = 0;
843 hints.ai_addr = NULL;
844 hints.ai_canonname = NULL;
845 hints.ai_next = NULL;
846
847 ret = getaddrinfo(NULL, endpoint, &hints, &ai);
848 if (ret)
849 {
850 ERR("getaddrinfo for port %s failed: %s\n", endpoint,
851 gai_strerror(ret));
852 if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
853 return RPC_S_INVALID_ENDPOINT_FORMAT;
854 return RPC_S_CANT_CREATE_ENDPOINT;
855 }
856
857 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
858 {
859 RpcConnection_tcp *tcpc;
860 RPC_STATUS create_status;
861
862 if (TRACE_ON(rpc))
863 {
864 char host[256];
865 char service[256];
866 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
867 host, sizeof(host), service, sizeof(service),
868 NI_NUMERICHOST | NI_NUMERICSERV);
869 TRACE("trying %s:%s\n", host, service);
870 }
871
872 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
873 if (sock == -1)
874 {
875 WARN("socket() failed: %s\n", strerror(errno));
876 status = RPC_S_CANT_CREATE_ENDPOINT;
877 continue;
878 }
879
880 ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
881 if (ret < 0)
882 {
883 WARN("bind failed: %s\n", strerror(errno));
884 closesocket(sock);
885 if (errno == EADDRINUSE)
886 status = RPC_S_DUPLICATE_ENDPOINT;
887 else
888 status = RPC_S_CANT_CREATE_ENDPOINT;
889 continue;
890 }
891 create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
892 protseq->Protseq, NULL,
893 endpoint, NULL, NULL, NULL);
894 if (create_status != RPC_S_OK)
895 {
896 closesocket(sock);
897 status = create_status;
898 continue;
899 }
900
901 tcpc->sock = sock;
902 ret = listen(sock, protseq->MaxCalls);
903 if (ret < 0)
904 {
905 WARN("listen failed: %s\n", strerror(errno));
906 RPCRT4_DestroyConnection(&tcpc->common);
907 status = RPC_S_OUT_OF_RESOURCES;
908 continue;
909 }
910 /* need a non-blocking socket, otherwise accept() has a potential
911 * race-condition (poll() says it is readable, connection drops,
912 * and accept() blocks until the next connection comes...)
913 */
914 ret = fcntl(sock, F_SETFL, O_NONBLOCK);
915 if (ret < 0)
916 {
917 WARN("couldn't make socket non-blocking, error %d\n", ret);
918 RPCRT4_DestroyConnection(&tcpc->common);
919 status = RPC_S_OUT_OF_RESOURCES;
920 continue;
921 }
922
923 tcpc->common.Next = first_connection;
924 first_connection = &tcpc->common;
925 }
926
927 freeaddrinfo(ai);
928
929 /* if at least one connection was created for an endpoint then
930 * return success */
931 if (first_connection)
932 {
933 RpcConnection *conn;
934
935 /* find last element in list */
936 for (conn = first_connection; conn->Next; conn = conn->Next)
937 ;
938
939 EnterCriticalSection(&protseq->cs);
940 conn->Next = protseq->conn;
941 protseq->conn = first_connection;
942 LeaveCriticalSection(&protseq->cs);
943
944 TRACE("listening on %s\n", endpoint);
945 return RPC_S_OK;
946 }
947
948 ERR("couldn't listen on port %s\n", endpoint);
949 return status;
950 }
951
952 static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
953 {
954 int ret;
955 struct sockaddr_in address;
956 socklen_t addrsize;
957 RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
958 RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
959
960 addrsize = sizeof(address);
961 ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
962 if (ret < 0)
963 {
964 ERR("Failed to accept a TCP connection: error %d\n", ret);
965 return RPC_S_OUT_OF_RESOURCES;
966 }
967 /* reset to blocking behaviour */
968 fcntl(ret, F_SETFL, 0);
969 client->sock = ret;
970 TRACE("Accepted a new TCP connection\n");
971 return RPC_S_OK;
972 }
973
974 static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
975 void *buffer, unsigned int count)
976 {
977 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
978 int bytes_read = 0;
979 do
980 {
981 int r = recv(tcpc->sock, (char *)buffer + bytes_read, count - bytes_read, 0);
982 if (!r)
983 return -1;
984 else if (r > 0)
985 bytes_read += r;
986 else if (errno != EAGAIN)
987 {
988 WARN("recv() failed: %s\n", strerror(errno));
989 return -1;
990 }
991 else
992 {
993 struct pollfd pfds[2];
994 pfds[0].fd = tcpc->sock;
995 pfds[0].events = POLLIN;
996 pfds[1].fd = tcpc->cancel_fds[0];
997 pfds[1].events = POLLIN;
998 if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
999 {
1000 ERR("poll() failed: %s\n", strerror(errno));
1001 return -1;
1002 }
1003 if (pfds[1].revents & POLLIN) /* canceled */
1004 {
1005 char dummy;
1006 read(pfds[1].fd, &dummy, sizeof(dummy));
1007 return -1;
1008 }
1009 }
1010 } while (bytes_read != count);
1011 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_read);
1012 return bytes_read;
1013 }
1014
1015 static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
1016 const void *buffer, unsigned int count)
1017 {
1018 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1019 int bytes_written = 0;
1020 do
1021 {
1022 int r = send(tcpc->sock, (const char *)buffer + bytes_written, count - bytes_written, 0);
1023 if (r >= 0)
1024 bytes_written += r;
1025 else if (errno != EAGAIN)
1026 return -1;
1027 else
1028 {
1029 struct pollfd pfd;
1030 pfd.fd = tcpc->sock;
1031 pfd.events = POLLOUT;
1032 if (poll(&pfd, 1, -1 /* infinite */) == -1 && errno != EINTR)
1033 {
1034 ERR("poll() failed: %s\n", strerror(errno));
1035 return -1;
1036 }
1037 }
1038 } while (bytes_written != count);
1039 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_written);
1040 return bytes_written;
1041 }
1042
1043 static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
1044 {
1045 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1046
1047 TRACE("%d\n", tcpc->sock);
1048
1049 if (tcpc->sock != -1)
1050 closesocket(tcpc->sock);
1051 tcpc->sock = -1;
1052 close(tcpc->cancel_fds[0]);
1053 close(tcpc->cancel_fds[1]);
1054 return 0;
1055 }
1056
1057 static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection)
1058 {
1059 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1060 char dummy = 1;
1061
1062 TRACE("%p\n", Connection);
1063
1064 write(tcpc->cancel_fds[1], &dummy, 1);
1065 }
1066
1067 static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection)
1068 {
1069 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1070 struct pollfd pfds[2];
1071
1072 TRACE("%p\n", Connection);
1073
1074 pfds[0].fd = tcpc->sock;
1075 pfds[0].events = POLLIN;
1076 pfds[1].fd = tcpc->cancel_fds[0];
1077 pfds[1].events = POLLIN;
1078 if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1079 {
1080 ERR("poll() failed: %s\n", strerror(errno));
1081 return -1;
1082 }
1083 if (pfds[1].revents & POLLIN) /* canceled */
1084 {
1085 char dummy;
1086 read(pfds[1].fd, &dummy, sizeof(dummy));
1087 return -1;
1088 }
1089
1090 return 0;
1091 }
1092
1093 static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
1094 const char *networkaddr,
1095 const char *endpoint)
1096 {
1097 twr_tcp_floor_t *tcp_floor;
1098 twr_ipv4_floor_t *ipv4_floor;
1099 struct addrinfo *ai;
1100 struct addrinfo hints;
1101 int ret;
1102 size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
1103
1104 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
1105
1106 if (!tower_data)
1107 return size;
1108
1109 tcp_floor = (twr_tcp_floor_t *)tower_data;
1110 tower_data += sizeof(*tcp_floor);
1111
1112 ipv4_floor = (twr_ipv4_floor_t *)tower_data;
1113
1114 tcp_floor->count_lhs = sizeof(tcp_floor->protid);
1115 tcp_floor->protid = EPM_PROTOCOL_TCP;
1116 tcp_floor->count_rhs = sizeof(tcp_floor->port);
1117
1118 ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
1119 ipv4_floor->protid = EPM_PROTOCOL_IP;
1120 ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
1121
1122 hints.ai_flags = AI_NUMERICHOST;
1123 /* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
1124 hints.ai_family = PF_INET;
1125 hints.ai_socktype = SOCK_STREAM;
1126 hints.ai_protocol = IPPROTO_TCP;
1127 hints.ai_addrlen = 0;
1128 hints.ai_addr = NULL;
1129 hints.ai_canonname = NULL;
1130 hints.ai_next = NULL;
1131
1132 ret = getaddrinfo(networkaddr, endpoint, &hints, &ai);
1133 if (ret)
1134 {
1135 ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
1136 if (ret)
1137 {
1138 ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
1139 return 0;
1140 }
1141 }
1142
1143 if (ai->ai_family == PF_INET)
1144 {
1145 const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
1146 tcp_floor->port = sin->sin_port;
1147 ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
1148 }
1149 else
1150 {
1151 ERR("unexpected protocol family %d\n", ai->ai_family);
1152 return 0;
1153 }
1154
1155 freeaddrinfo(ai);
1156
1157 return size;
1158 }
1159
1160 static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
1161 size_t tower_size,
1162 char **networkaddr,
1163 char **endpoint)
1164 {
1165 const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
1166 const twr_ipv4_floor_t *ipv4_floor;
1167 struct in_addr in_addr;
1168
1169 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
1170
1171 if (tower_size < sizeof(*tcp_floor))
1172 return EPT_S_NOT_REGISTERED;
1173
1174 tower_data += sizeof(*tcp_floor);
1175 tower_size -= sizeof(*tcp_floor);
1176
1177 if (tower_size < sizeof(*ipv4_floor))
1178 return EPT_S_NOT_REGISTERED;
1179
1180 ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
1181
1182 if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
1183 (tcp_floor->protid != EPM_PROTOCOL_TCP) ||
1184 (tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
1185 (ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
1186 (ipv4_floor->protid != EPM_PROTOCOL_IP) ||
1187 (ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
1188 return EPT_S_NOT_REGISTERED;
1189
1190 if (endpoint)
1191 {
1192 *endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
1193 if (!*endpoint)
1194 return RPC_S_OUT_OF_RESOURCES;
1195 sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
1196 }
1197
1198 if (networkaddr)
1199 {
1200 *networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
1201 if (!*networkaddr)
1202 {
1203 if (endpoint)
1204 {
1205 I_RpcFree(*endpoint);
1206 *endpoint = NULL;
1207 }
1208 return RPC_S_OUT_OF_RESOURCES;
1209 }
1210 in_addr.s_addr = ipv4_floor->ipv4addr;
1211 if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
1212 {
1213 ERR("inet_ntop: %s\n", strerror(errno));
1214 I_RpcFree(*networkaddr);
1215 *networkaddr = NULL;
1216 if (endpoint)
1217 {
1218 I_RpcFree(*endpoint);
1219 *endpoint = NULL;
1220 }
1221 return EPT_S_NOT_REGISTERED;
1222 }
1223 }
1224
1225 return RPC_S_OK;
1226 }
1227
1228 typedef struct _RpcServerProtseq_sock
1229 {
1230 RpcServerProtseq common;
1231 int mgr_event_rcv;
1232 int mgr_event_snd;
1233 } RpcServerProtseq_sock;
1234
1235 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1236 {
1237 RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1238 if (ps)
1239 {
1240 int fds[2];
1241 if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
1242 {
1243 fcntl(fds[0], F_SETFL, O_NONBLOCK);
1244 fcntl(fds[1], F_SETFL, O_NONBLOCK);
1245 ps->mgr_event_rcv = fds[0];
1246 ps->mgr_event_snd = fds[1];
1247 }
1248 else
1249 {
1250 ERR("socketpair failed with error %s\n", strerror(errno));
1251 HeapFree(GetProcessHeap(), 0, ps);
1252 return NULL;
1253 }
1254 }
1255 return &ps->common;
1256 }
1257
1258 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1259 {
1260 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1261 char dummy = 1;
1262 write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
1263 }
1264
1265 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1266 {
1267 struct pollfd *poll_info = prev_array;
1268 RpcConnection_tcp *conn;
1269 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1270
1271 EnterCriticalSection(&protseq->cs);
1272
1273 /* open and count connections */
1274 *count = 1;
1275 conn = (RpcConnection_tcp *)protseq->conn;
1276 while (conn) {
1277 if (conn->sock != -1)
1278 (*count)++;
1279 conn = (RpcConnection_tcp *)conn->common.Next;
1280 }
1281
1282 /* make array of connections */
1283 if (poll_info)
1284 poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
1285 else
1286 poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
1287 if (!poll_info)
1288 {
1289 ERR("couldn't allocate poll_info\n");
1290 LeaveCriticalSection(&protseq->cs);
1291 return NULL;
1292 }
1293
1294 poll_info[0].fd = sockps->mgr_event_rcv;
1295 poll_info[0].events = POLLIN;
1296 *count = 1;
1297 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1298 while (conn) {
1299 if (conn->sock != -1)
1300 {
1301 poll_info[*count].fd = conn->sock;
1302 poll_info[*count].events = POLLIN;
1303 (*count)++;
1304 }
1305 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1306 }
1307 LeaveCriticalSection(&protseq->cs);
1308 return poll_info;
1309 }
1310
1311 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1312 {
1313 HeapFree(GetProcessHeap(), 0, array);
1314 }
1315
1316 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1317 {
1318 struct pollfd *poll_info = wait_array;
1319 int ret, i;
1320 RpcConnection *cconn;
1321 RpcConnection_tcp *conn;
1322
1323 if (!poll_info)
1324 return -1;
1325
1326 ret = poll(poll_info, count, -1);
1327 if (ret < 0)
1328 {
1329 ERR("poll failed with error %d\n", ret);
1330 return -1;
1331 }
1332
1333 for (i = 0; i < count; i++)
1334 if (poll_info[i].revents & POLLIN)
1335 {
1336 /* RPC server event */
1337 if (i == 0)
1338 {
1339 char dummy;
1340 read(poll_info[0].fd, &dummy, sizeof(dummy));
1341 return 0;
1342 }
1343
1344 /* find which connection got a RPC */
1345 EnterCriticalSection(&protseq->cs);
1346 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1347 while (conn) {
1348 if (poll_info[i].fd == conn->sock) break;
1349 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1350 }
1351 cconn = NULL;
1352 if (conn)
1353 RPCRT4_SpawnConnection(&cconn, &conn->common);
1354 else
1355 ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
1356 LeaveCriticalSection(&protseq->cs);
1357 if (cconn)
1358 RPCRT4_new_client(cconn);
1359 else
1360 return -1;
1361 }
1362
1363 return 1;
1364 }
1365
1366 static const struct connection_ops conn_protseq_list[] = {
1367 { "ncacn_np",
1368 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
1369 rpcrt4_conn_np_alloc,
1370 rpcrt4_ncacn_np_open,
1371 rpcrt4_ncacn_np_handoff,
1372 rpcrt4_conn_np_read,
1373 rpcrt4_conn_np_write,
1374 rpcrt4_conn_np_close,
1375 rpcrt4_conn_np_cancel_call,
1376 rpcrt4_conn_np_wait_for_incoming_data,
1377 rpcrt4_ncacn_np_get_top_of_tower,
1378 rpcrt4_ncacn_np_parse_top_of_tower,
1379 },
1380 { "ncalrpc",
1381 { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
1382 rpcrt4_conn_np_alloc,
1383 rpcrt4_ncalrpc_open,
1384 rpcrt4_ncalrpc_handoff,
1385 rpcrt4_conn_np_read,
1386 rpcrt4_conn_np_write,
1387 rpcrt4_conn_np_close,
1388 rpcrt4_conn_np_cancel_call,
1389 rpcrt4_conn_np_wait_for_incoming_data,
1390 rpcrt4_ncalrpc_get_top_of_tower,
1391 rpcrt4_ncalrpc_parse_top_of_tower,
1392 },
1393 { "ncacn_ip_tcp",
1394 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
1395 rpcrt4_conn_tcp_alloc,
1396 rpcrt4_ncacn_ip_tcp_open,
1397 rpcrt4_conn_tcp_handoff,
1398 rpcrt4_conn_tcp_read,
1399 rpcrt4_conn_tcp_write,
1400 rpcrt4_conn_tcp_close,
1401 rpcrt4_conn_tcp_cancel_call,
1402 rpcrt4_conn_tcp_wait_for_incoming_data,
1403 rpcrt4_ncacn_ip_tcp_get_top_of_tower,
1404 rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
1405 }
1406 };
1407
1408
1409 static const struct protseq_ops protseq_list[] =
1410 {
1411 {
1412 "ncacn_np",
1413 rpcrt4_protseq_np_alloc,
1414 rpcrt4_protseq_np_signal_state_changed,
1415 rpcrt4_protseq_np_get_wait_array,
1416 rpcrt4_protseq_np_free_wait_array,
1417 rpcrt4_protseq_np_wait_for_new_connection,
1418 rpcrt4_protseq_ncacn_np_open_endpoint,
1419 },
1420 {
1421 "ncalrpc",
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_ncalrpc_open_endpoint,
1428 },
1429 {
1430 "ncacn_ip_tcp",
1431 rpcrt4_protseq_sock_alloc,
1432 rpcrt4_protseq_sock_signal_state_changed,
1433 rpcrt4_protseq_sock_get_wait_array,
1434 rpcrt4_protseq_sock_free_wait_array,
1435 rpcrt4_protseq_sock_wait_for_new_connection,
1436 rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
1437 },
1438 };
1439
1440 #define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
1441
1442 const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
1443 {
1444 int i;
1445 for(i=0; i<ARRAYSIZE(protseq_list); i++)
1446 if (!strcmp(protseq_list[i].name, protseq))
1447 return &protseq_list[i];
1448 return NULL;
1449 }
1450
1451 static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
1452 {
1453 int i;
1454 for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
1455 if (!strcmp(conn_protseq_list[i].name, protseq))
1456 return &conn_protseq_list[i];
1457 return NULL;
1458 }
1459
1460 /**** interface to rest of code ****/
1461
1462 RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
1463 {
1464 TRACE("(Connection == ^%p)\n", Connection);
1465
1466 assert(!Connection->server);
1467 return Connection->ops->open_connection_client(Connection);
1468 }
1469
1470 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
1471 {
1472 TRACE("(Connection == ^%p)\n", Connection);
1473 if (SecIsValidHandle(&Connection->ctx))
1474 {
1475 DeleteSecurityContext(&Connection->ctx);
1476 SecInvalidateHandle(&Connection->ctx);
1477 }
1478 rpcrt4_conn_close(Connection);
1479 return RPC_S_OK;
1480 }
1481
1482 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
1483 LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
1484 LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
1485 {
1486 const struct connection_ops *ops;
1487 RpcConnection* NewConnection;
1488
1489 ops = rpcrt4_get_conn_protseq_ops(Protseq);
1490 if (!ops)
1491 {
1492 FIXME("not supported for protseq %s\n", Protseq);
1493 return RPC_S_PROTSEQ_NOT_SUPPORTED;
1494 }
1495
1496 NewConnection = ops->alloc();
1497 NewConnection->Next = NULL;
1498 NewConnection->server_binding = NULL;
1499 NewConnection->server = server;
1500 NewConnection->ops = ops;
1501 NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
1502 NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
1503 NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
1504 NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
1505 memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
1506 NewConnection->NextCallId = 1;
1507
1508 SecInvalidateHandle(&NewConnection->ctx);
1509 memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
1510 NewConnection->attr = 0;
1511 if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
1512 NewConnection->AuthInfo = AuthInfo;
1513 NewConnection->encryption_auth_len = 0;
1514 NewConnection->signature_auth_len = 0;
1515 if (QOS) RpcQualityOfService_AddRef(QOS);
1516 NewConnection->QOS = QOS;
1517
1518 list_init(&NewConnection->conn_pool_entry);
1519 NewConnection->async_state = NULL;
1520
1521 TRACE("connection: %p\n", NewConnection);
1522 *Connection = NewConnection;
1523
1524 return RPC_S_OK;
1525 }
1526
1527
1528 RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
1529 {
1530 RPC_STATUS err;
1531
1532 err = RPCRT4_CreateConnection(Connection, OldConnection->server,
1533 rpcrt4_conn_get_name(OldConnection),
1534 OldConnection->NetworkAddr,
1535 OldConnection->Endpoint, NULL,
1536 OldConnection->AuthInfo, OldConnection->QOS);
1537 if (err == RPC_S_OK)
1538 rpcrt4_conn_handoff(OldConnection, *Connection);
1539 return err;
1540 }
1541
1542 RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection)
1543 {
1544 TRACE("connection: %p\n", Connection);
1545
1546 RPCRT4_CloseConnection(Connection);
1547 RPCRT4_strfree(Connection->Endpoint);
1548 RPCRT4_strfree(Connection->NetworkAddr);
1549 HeapFree(GetProcessHeap(), 0, Connection->NetworkOptions);
1550 if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
1551 if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
1552
1553 /* server-only */
1554 if (Connection->server_binding) RPCRT4_DestroyBinding(Connection->server_binding);
1555
1556 HeapFree(GetProcessHeap(), 0, Connection);
1557 return RPC_S_OK;
1558 }
1559
1560 RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
1561 size_t *tower_size,
1562 const char *protseq,
1563 const char *networkaddr,
1564 const char *endpoint)
1565 {
1566 twr_empty_floor_t *protocol_floor;
1567 const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
1568
1569 *tower_size = 0;
1570
1571 if (!protseq_ops)
1572 return RPC_S_INVALID_RPC_PROTSEQ;
1573
1574 if (!tower_data)
1575 {
1576 *tower_size = sizeof(*protocol_floor);
1577 *tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
1578 return RPC_S_OK;
1579 }
1580
1581 protocol_floor = (twr_empty_floor_t *)tower_data;
1582 protocol_floor->count_lhs = sizeof(protocol_floor->protid);
1583 protocol_floor->protid = protseq_ops->epm_protocols[0];
1584 protocol_floor->count_rhs = 0;
1585
1586 tower_data += sizeof(*protocol_floor);
1587
1588 *tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
1589 if (!*tower_size)
1590 return EPT_S_NOT_REGISTERED;
1591
1592 *tower_size += sizeof(*protocol_floor);
1593
1594 return RPC_S_OK;
1595 }
1596
1597 RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
1598 size_t tower_size,
1599 char **protseq,
1600 char **networkaddr,
1601 char **endpoint)
1602 {
1603 const twr_empty_floor_t *protocol_floor;
1604 const twr_empty_floor_t *floor4;
1605 const struct connection_ops *protseq_ops = NULL;
1606 RPC_STATUS status;
1607 int i;
1608
1609 if (tower_size < sizeof(*protocol_floor))
1610 return EPT_S_NOT_REGISTERED;
1611
1612 protocol_floor = (const twr_empty_floor_t *)tower_data;
1613 tower_data += sizeof(*protocol_floor);
1614 tower_size -= sizeof(*protocol_floor);
1615 if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
1616 (protocol_floor->count_rhs > tower_size))
1617 return EPT_S_NOT_REGISTERED;
1618 tower_data += protocol_floor->count_rhs;
1619 tower_size -= protocol_floor->count_rhs;
1620
1621 floor4 = (const twr_empty_floor_t *)tower_data;
1622 if ((tower_size < sizeof(*floor4)) ||
1623 (floor4->count_lhs != sizeof(floor4->protid)))
1624 return EPT_S_NOT_REGISTERED;
1625
1626 for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
1627 if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
1628 (floor4->protid == conn_protseq_list[i].epm_protocols[1]))
1629 {
1630 protseq_ops = &conn_protseq_list[i];
1631 break;
1632 }
1633
1634 if (!protseq_ops)
1635 return EPT_S_NOT_REGISTERED;
1636
1637 status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
1638
1639 if ((status == RPC_S_OK) && protseq)
1640 {
1641 *protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
1642 strcpy(*protseq, protseq_ops->name);
1643 }
1644
1645 return status;
1646 }
1647
1648 /***********************************************************************
1649 * RpcNetworkIsProtseqValidW (RPCRT4.@)
1650 *
1651 * Checks if the given protocol sequence is known by the RPC system.
1652 * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
1653 *
1654 */
1655 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
1656 {
1657 char ps[0x10];
1658
1659 WideCharToMultiByte(CP_ACP, 0, protseq, -1,
1660 ps, sizeof ps, NULL, NULL);
1661 if (rpcrt4_get_conn_protseq_ops(ps))
1662 return RPC_S_OK;
1663
1664 FIXME("Unknown protseq %s\n", debugstr_w(protseq));
1665
1666 return RPC_S_INVALID_RPC_PROTSEQ;
1667 }
1668
1669 /***********************************************************************
1670 * RpcNetworkIsProtseqValidA (RPCRT4.@)
1671 */
1672 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
1673 {
1674 UNICODE_STRING protseqW;
1675
1676 if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
1677 {
1678 RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
1679 RtlFreeUnicodeString(&protseqW);
1680 return ret;
1681 }
1682 return RPC_S_OUT_OF_MEMORY;
1683 }
Windows API implementation