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push 421a6d0d1068c98851feb4eb01bb0e754f615ce9
[wine/hacks.git] / dlls / rpcrt4 / rpc_transport.c
blob53876a928ac31755a6631028b73215f4891e7b0f
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 <errno.h>
33
34 #ifdef HAVE_UNISTD_H
35 # include <unistd.h>
36 #endif
37 #include <fcntl.h>
38 #include <stdlib.h>
39 #include <sys/types.h>
40 #ifdef HAVE_SYS_SOCKET_H
41 # include <sys/socket.h>
42 #endif
43 #ifdef HAVE_NETINET_IN_H
44 # include <netinet/in.h>
45 #endif
46 #ifdef HAVE_NETINET_TCP_H
47 # include <netinet/tcp.h>
48 #endif
49 #ifdef HAVE_ARPA_INET_H
50 # include <arpa/inet.h>
51 #endif
52 #ifdef HAVE_NETDB_H
53 #include <netdb.h>
54 #endif
55 #ifdef HAVE_SYS_POLL_H
56 #include <sys/poll.h>
57 #endif
58
59 #include "windef.h"
60 #include "winbase.h"
61 #include "winnls.h"
62 #include "winerror.h"
63 #include "winternl.h"
64 #include "wine/unicode.h"
65
66 #include "rpc.h"
67 #include "rpcndr.h"
68
69 #include "wine/debug.h"
70
71 #include "rpc_binding.h"
72 #include "rpc_message.h"
73 #include "rpc_server.h"
74 #include "epm_towers.h"
75
76 #ifndef SOL_TCP
77 # define SOL_TCP IPPROTO_TCP
78 #endif
79
80 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
81
82 static CRITICAL_SECTION assoc_list_cs;
83 static CRITICAL_SECTION_DEBUG assoc_list_cs_debug =
84 {
85 0, 0, &assoc_list_cs,
86 { &assoc_list_cs_debug.ProcessLocksList, &assoc_list_cs_debug.ProcessLocksList },
87 0, 0, { (DWORD_PTR)(__FILE__ ": assoc_list_cs") }
88 };
89 static CRITICAL_SECTION assoc_list_cs = { &assoc_list_cs_debug, -1, 0, 0, 0, 0 };
90
91 static struct list assoc_list = LIST_INIT(assoc_list);
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, count, &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 size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
420 const char *networkaddr,
421 const char *endpoint)
422 {
423 twr_empty_floor_t *smb_floor;
424 twr_empty_floor_t *nb_floor;
425 size_t size;
426 size_t networkaddr_size;
427 size_t endpoint_size;
428
429 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
430
431 networkaddr_size = strlen(networkaddr) + 1;
432 endpoint_size = strlen(endpoint) + 1;
433 size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
434
435 if (!tower_data)
436 return size;
437
438 smb_floor = (twr_empty_floor_t *)tower_data;
439
440 tower_data += sizeof(*smb_floor);
441
442 smb_floor->count_lhs = sizeof(smb_floor->protid);
443 smb_floor->protid = EPM_PROTOCOL_SMB;
444 smb_floor->count_rhs = endpoint_size;
445
446 memcpy(tower_data, endpoint, endpoint_size);
447 tower_data += endpoint_size;
448
449 nb_floor = (twr_empty_floor_t *)tower_data;
450
451 tower_data += sizeof(*nb_floor);
452
453 nb_floor->count_lhs = sizeof(nb_floor->protid);
454 nb_floor->protid = EPM_PROTOCOL_NETBIOS;
455 nb_floor->count_rhs = networkaddr_size;
456
457 memcpy(tower_data, networkaddr, networkaddr_size);
458 tower_data += networkaddr_size;
459
460 return size;
461 }
462
463 static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
464 size_t tower_size,
465 char **networkaddr,
466 char **endpoint)
467 {
468 const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
469 const twr_empty_floor_t *nb_floor;
470
471 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
472
473 if (tower_size < sizeof(*smb_floor))
474 return EPT_S_NOT_REGISTERED;
475
476 tower_data += sizeof(*smb_floor);
477 tower_size -= sizeof(*smb_floor);
478
479 if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
480 (smb_floor->protid != EPM_PROTOCOL_SMB) ||
481 (smb_floor->count_rhs > tower_size))
482 return EPT_S_NOT_REGISTERED;
483
484 if (endpoint)
485 {
486 *endpoint = I_RpcAllocate(smb_floor->count_rhs);
487 if (!*endpoint)
488 return RPC_S_OUT_OF_RESOURCES;
489 memcpy(*endpoint, tower_data, smb_floor->count_rhs);
490 }
491 tower_data += smb_floor->count_rhs;
492 tower_size -= smb_floor->count_rhs;
493
494 if (tower_size < sizeof(*nb_floor))
495 return EPT_S_NOT_REGISTERED;
496
497 nb_floor = (const twr_empty_floor_t *)tower_data;
498
499 tower_data += sizeof(*nb_floor);
500 tower_size -= sizeof(*nb_floor);
501
502 if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
503 (nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
504 (nb_floor->count_rhs > tower_size))
505 return EPT_S_NOT_REGISTERED;
506
507 if (networkaddr)
508 {
509 *networkaddr = I_RpcAllocate(nb_floor->count_rhs);
510 if (!*networkaddr)
511 {
512 if (endpoint)
513 {
514 I_RpcFree(*endpoint);
515 *endpoint = NULL;
516 }
517 return RPC_S_OUT_OF_RESOURCES;
518 }
519 memcpy(*networkaddr, tower_data, nb_floor->count_rhs);
520 }
521
522 return RPC_S_OK;
523 }
524
525 typedef struct _RpcServerProtseq_np
526 {
527 RpcServerProtseq common;
528 HANDLE mgr_event;
529 } RpcServerProtseq_np;
530
531 static RpcServerProtseq *rpcrt4_protseq_np_alloc(void)
532 {
533 RpcServerProtseq_np *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
534 if (ps)
535 ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
536 return &ps->common;
537 }
538
539 static void rpcrt4_protseq_np_signal_state_changed(RpcServerProtseq *protseq)
540 {
541 RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
542 SetEvent(npps->mgr_event);
543 }
544
545 static void *rpcrt4_protseq_np_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
546 {
547 HANDLE *objs = prev_array;
548 RpcConnection_np *conn;
549 RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
550
551 EnterCriticalSection(&protseq->cs);
552
553 /* open and count connections */
554 *count = 1;
555 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
556 while (conn) {
557 rpcrt4_conn_listen_pipe(conn);
558 if (conn->ovl.hEvent)
559 (*count)++;
560 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
561 }
562
563 /* make array of connections */
564 if (objs)
565 objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
566 else
567 objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
568 if (!objs)
569 {
570 ERR("couldn't allocate objs\n");
571 LeaveCriticalSection(&protseq->cs);
572 return NULL;
573 }
574
575 objs[0] = npps->mgr_event;
576 *count = 1;
577 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
578 while (conn) {
579 if ((objs[*count] = conn->ovl.hEvent))
580 (*count)++;
581 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
582 }
583 LeaveCriticalSection(&protseq->cs);
584 return objs;
585 }
586
587 static void rpcrt4_protseq_np_free_wait_array(RpcServerProtseq *protseq, void *array)
588 {
589 HeapFree(GetProcessHeap(), 0, array);
590 }
591
592 static int rpcrt4_protseq_np_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
593 {
594 HANDLE b_handle;
595 HANDLE *objs = wait_array;
596 DWORD res;
597 RpcConnection *cconn;
598 RpcConnection_np *conn;
599
600 if (!objs)
601 return -1;
602
603 res = WaitForMultipleObjects(count, objs, FALSE, INFINITE);
604 if (res == WAIT_OBJECT_0)
605 return 0;
606 else if (res == WAIT_FAILED)
607 {
608 ERR("wait failed with error %d\n", GetLastError());
609 return -1;
610 }
611 else
612 {
613 b_handle = objs[res - WAIT_OBJECT_0];
614 /* find which connection got a RPC */
615 EnterCriticalSection(&protseq->cs);
616 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
617 while (conn) {
618 if (b_handle == conn->ovl.hEvent) break;
619 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
620 }
621 cconn = NULL;
622 if (conn)
623 RPCRT4_SpawnConnection(&cconn, &conn->common);
624 else
625 ERR("failed to locate connection for handle %p\n", b_handle);
626 LeaveCriticalSection(&protseq->cs);
627 if (cconn)
628 {
629 RPCRT4_new_client(cconn);
630 return 1;
631 }
632 else return -1;
633 }
634 }
635
636 static size_t rpcrt4_ncalrpc_get_top_of_tower(unsigned char *tower_data,
637 const char *networkaddr,
638 const char *endpoint)
639 {
640 twr_empty_floor_t *pipe_floor;
641 size_t size;
642 size_t endpoint_size;
643
644 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
645
646 endpoint_size = strlen(networkaddr) + 1;
647 size = sizeof(*pipe_floor) + endpoint_size;
648
649 if (!tower_data)
650 return size;
651
652 pipe_floor = (twr_empty_floor_t *)tower_data;
653
654 tower_data += sizeof(*pipe_floor);
655
656 pipe_floor->count_lhs = sizeof(pipe_floor->protid);
657 pipe_floor->protid = EPM_PROTOCOL_SMB;
658 pipe_floor->count_rhs = endpoint_size;
659
660 memcpy(tower_data, endpoint, endpoint_size);
661 tower_data += endpoint_size;
662
663 return size;
664 }
665
666 static RPC_STATUS rpcrt4_ncalrpc_parse_top_of_tower(const unsigned char *tower_data,
667 size_t tower_size,
668 char **networkaddr,
669 char **endpoint)
670 {
671 const twr_empty_floor_t *pipe_floor = (const twr_empty_floor_t *)tower_data;
672
673 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
674
675 *networkaddr = NULL;
676 *endpoint = NULL;
677
678 if (tower_size < sizeof(*pipe_floor))
679 return EPT_S_NOT_REGISTERED;
680
681 tower_data += sizeof(*pipe_floor);
682 tower_size -= sizeof(*pipe_floor);
683
684 if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
685 (pipe_floor->protid != EPM_PROTOCOL_SMB) ||
686 (pipe_floor->count_rhs > tower_size))
687 return EPT_S_NOT_REGISTERED;
688
689 if (endpoint)
690 {
691 *endpoint = I_RpcAllocate(pipe_floor->count_rhs);
692 if (!*endpoint)
693 return RPC_S_OUT_OF_RESOURCES;
694 memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
695 }
696
697 return RPC_S_OK;
698 }
699
700 /**** ncacn_ip_tcp support ****/
701
702 typedef struct _RpcConnection_tcp
703 {
704 RpcConnection common;
705 int sock;
706 } RpcConnection_tcp;
707
708 static RpcConnection *rpcrt4_conn_tcp_alloc(void)
709 {
710 RpcConnection_tcp *tcpc;
711 tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
712 if (tcpc == NULL)
713 return NULL;
714 tcpc->sock = -1;
715 return &tcpc->common;
716 }
717
718 static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection)
719 {
720 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
721 int sock;
722 int ret;
723 struct addrinfo *ai;
724 struct addrinfo *ai_cur;
725 struct addrinfo hints;
726
727 TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
728
729 if (tcpc->sock != -1)
730 return RPC_S_OK;
731
732 hints.ai_flags = 0;
733 hints.ai_family = PF_UNSPEC;
734 hints.ai_socktype = SOCK_STREAM;
735 hints.ai_protocol = IPPROTO_TCP;
736 hints.ai_addrlen = 0;
737 hints.ai_addr = NULL;
738 hints.ai_canonname = NULL;
739 hints.ai_next = NULL;
740
741 ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai);
742 if (ret)
743 {
744 ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
745 Connection->Endpoint, gai_strerror(ret));
746 return RPC_S_SERVER_UNAVAILABLE;
747 }
748
749 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
750 {
751 int val;
752
753 if (TRACE_ON(rpc))
754 {
755 char host[256];
756 char service[256];
757 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
758 host, sizeof(host), service, sizeof(service),
759 NI_NUMERICHOST | NI_NUMERICSERV);
760 TRACE("trying %s:%s\n", host, service);
761 }
762
763 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
764 if (sock < 0)
765 {
766 WARN("socket() failed: %s\n", strerror(errno));
767 continue;
768 }
769
770 if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
771 {
772 WARN("connect() failed: %s\n", strerror(errno));
773 close(sock);
774 continue;
775 }
776
777 /* RPC depends on having minimal latency so disable the Nagle algorithm */
778 val = 1;
779 setsockopt(sock, SOL_TCP, TCP_NODELAY, &val, sizeof(val));
780
781 tcpc->sock = sock;
782
783 freeaddrinfo(ai);
784 TRACE("connected\n");
785 return RPC_S_OK;
786 }
787
788 freeaddrinfo(ai);
789 ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint);
790 return RPC_S_SERVER_UNAVAILABLE;
791 }
792
793 static RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
794 {
795 RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
796 int sock;
797 int ret;
798 struct addrinfo *ai;
799 struct addrinfo *ai_cur;
800 struct addrinfo hints;
801 RpcConnection *first_connection = NULL;
802
803 TRACE("(%p, %s)\n", protseq, endpoint);
804
805 hints.ai_flags = AI_PASSIVE /* for non-localhost addresses */;
806 hints.ai_family = PF_UNSPEC;
807 hints.ai_socktype = SOCK_STREAM;
808 hints.ai_protocol = IPPROTO_TCP;
809 hints.ai_addrlen = 0;
810 hints.ai_addr = NULL;
811 hints.ai_canonname = NULL;
812 hints.ai_next = NULL;
813
814 ret = getaddrinfo(NULL, endpoint, &hints, &ai);
815 if (ret)
816 {
817 ERR("getaddrinfo for port %s failed: %s\n", endpoint,
818 gai_strerror(ret));
819 if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
820 return RPC_S_INVALID_ENDPOINT_FORMAT;
821 return RPC_S_CANT_CREATE_ENDPOINT;
822 }
823
824 for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
825 {
826 RpcConnection_tcp *tcpc;
827 RPC_STATUS create_status;
828
829 if (TRACE_ON(rpc))
830 {
831 char host[256];
832 char service[256];
833 getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
834 host, sizeof(host), service, sizeof(service),
835 NI_NUMERICHOST | NI_NUMERICSERV);
836 TRACE("trying %s:%s\n", host, service);
837 }
838
839 sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
840 if (sock < 0)
841 {
842 WARN("socket() failed: %s\n", strerror(errno));
843 status = RPC_S_CANT_CREATE_ENDPOINT;
844 continue;
845 }
846
847 ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
848 if (ret < 0)
849 {
850 WARN("bind failed: %s\n", strerror(errno));
851 close(sock);
852 if (errno == EADDRINUSE)
853 status = RPC_S_DUPLICATE_ENDPOINT;
854 else
855 status = RPC_S_CANT_CREATE_ENDPOINT;
856 continue;
857 }
858 create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
859 protseq->Protseq, NULL,
860 endpoint, NULL, NULL, NULL);
861 if (create_status != RPC_S_OK)
862 {
863 close(sock);
864 status = create_status;
865 continue;
866 }
867
868 tcpc->sock = sock;
869 ret = listen(sock, protseq->MaxCalls);
870 if (ret < 0)
871 {
872 WARN("listen failed: %s\n", strerror(errno));
873 RPCRT4_DestroyConnection(&tcpc->common);
874 status = RPC_S_OUT_OF_RESOURCES;
875 continue;
876 }
877 /* need a non-blocking socket, otherwise accept() has a potential
878 * race-condition (poll() says it is readable, connection drops,
879 * and accept() blocks until the next connection comes...)
880 */
881 ret = fcntl(sock, F_SETFL, O_NONBLOCK);
882 if (ret < 0)
883 {
884 WARN("couldn't make socket non-blocking, error %d\n", ret);
885 RPCRT4_DestroyConnection(&tcpc->common);
886 status = RPC_S_OUT_OF_RESOURCES;
887 continue;
888 }
889
890 tcpc->common.Next = first_connection;
891 first_connection = &tcpc->common;
892 }
893
894 freeaddrinfo(ai);
895
896 /* if at least one connection was created for an endpoint then
897 * return success */
898 if (first_connection)
899 {
900 RpcConnection *conn;
901
902 /* find last element in list */
903 for (conn = first_connection; conn->Next; conn = conn->Next)
904 ;
905
906 EnterCriticalSection(&protseq->cs);
907 conn->Next = protseq->conn;
908 protseq->conn = first_connection;
909 LeaveCriticalSection(&protseq->cs);
910
911 TRACE("listening on %s\n", endpoint);
912 return RPC_S_OK;
913 }
914
915 ERR("couldn't listen on port %s\n", endpoint);
916 return status;
917 }
918
919 static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
920 {
921 int ret;
922 struct sockaddr_in address;
923 socklen_t addrsize;
924 RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
925 RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
926
927 addrsize = sizeof(address);
928 ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
929 if (ret < 0)
930 {
931 ERR("Failed to accept a TCP connection: error %d\n", ret);
932 return RPC_S_OUT_OF_RESOURCES;
933 }
934 /* reset to blocking behaviour */
935 fcntl(ret, F_SETFL, 0);
936 client->sock = ret;
937 TRACE("Accepted a new TCP connection\n");
938 return RPC_S_OK;
939 }
940
941 static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
942 void *buffer, unsigned int count)
943 {
944 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
945 int r = recv(tcpc->sock, buffer, count, MSG_WAITALL);
946 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, r);
947 return r;
948 }
949
950 static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
951 const void *buffer, unsigned int count)
952 {
953 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
954 int r = write(tcpc->sock, buffer, count);
955 TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, r);
956 return r;
957 }
958
959 static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
960 {
961 RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
962
963 TRACE("%d\n", tcpc->sock);
964
965 if (tcpc->sock != -1)
966 close(tcpc->sock);
967 tcpc->sock = -1;
968 return 0;
969 }
970
971 static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
972 const char *networkaddr,
973 const char *endpoint)
974 {
975 twr_tcp_floor_t *tcp_floor;
976 twr_ipv4_floor_t *ipv4_floor;
977 struct addrinfo *ai;
978 struct addrinfo hints;
979 int ret;
980 size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
981
982 TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
983
984 if (!tower_data)
985 return size;
986
987 tcp_floor = (twr_tcp_floor_t *)tower_data;
988 tower_data += sizeof(*tcp_floor);
989
990 ipv4_floor = (twr_ipv4_floor_t *)tower_data;
991
992 tcp_floor->count_lhs = sizeof(tcp_floor->protid);
993 tcp_floor->protid = EPM_PROTOCOL_TCP;
994 tcp_floor->count_rhs = sizeof(tcp_floor->port);
995
996 ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
997 ipv4_floor->protid = EPM_PROTOCOL_IP;
998 ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
999
1000 hints.ai_flags = AI_NUMERICHOST;
1001 /* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
1002 hints.ai_family = PF_INET;
1003 hints.ai_socktype = SOCK_STREAM;
1004 hints.ai_protocol = IPPROTO_TCP;
1005 hints.ai_addrlen = 0;
1006 hints.ai_addr = NULL;
1007 hints.ai_canonname = NULL;
1008 hints.ai_next = NULL;
1009
1010 ret = getaddrinfo(networkaddr, endpoint, &hints, &ai);
1011 if (ret)
1012 {
1013 ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
1014 if (ret)
1015 {
1016 ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
1017 return 0;
1018 }
1019 }
1020
1021 if (ai->ai_family == PF_INET)
1022 {
1023 const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
1024 tcp_floor->port = sin->sin_port;
1025 ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
1026 }
1027 else
1028 {
1029 ERR("unexpected protocol family %d\n", ai->ai_family);
1030 return 0;
1031 }
1032
1033 freeaddrinfo(ai);
1034
1035 return size;
1036 }
1037
1038 static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
1039 size_t tower_size,
1040 char **networkaddr,
1041 char **endpoint)
1042 {
1043 const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
1044 const twr_ipv4_floor_t *ipv4_floor;
1045 struct in_addr in_addr;
1046
1047 TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
1048
1049 if (tower_size < sizeof(*tcp_floor))
1050 return EPT_S_NOT_REGISTERED;
1051
1052 tower_data += sizeof(*tcp_floor);
1053 tower_size -= sizeof(*tcp_floor);
1054
1055 if (tower_size < sizeof(*ipv4_floor))
1056 return EPT_S_NOT_REGISTERED;
1057
1058 ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
1059
1060 if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
1061 (tcp_floor->protid != EPM_PROTOCOL_TCP) ||
1062 (tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
1063 (ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
1064 (ipv4_floor->protid != EPM_PROTOCOL_IP) ||
1065 (ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
1066 return EPT_S_NOT_REGISTERED;
1067
1068 if (endpoint)
1069 {
1070 *endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
1071 if (!*endpoint)
1072 return RPC_S_OUT_OF_RESOURCES;
1073 sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
1074 }
1075
1076 if (networkaddr)
1077 {
1078 *networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
1079 if (!*networkaddr)
1080 {
1081 if (endpoint)
1082 {
1083 I_RpcFree(*endpoint);
1084 *endpoint = NULL;
1085 }
1086 return RPC_S_OUT_OF_RESOURCES;
1087 }
1088 in_addr.s_addr = ipv4_floor->ipv4addr;
1089 if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
1090 {
1091 ERR("inet_ntop: %s\n", strerror(errno));
1092 I_RpcFree(*networkaddr);
1093 *networkaddr = NULL;
1094 if (endpoint)
1095 {
1096 I_RpcFree(*endpoint);
1097 *endpoint = NULL;
1098 }
1099 return EPT_S_NOT_REGISTERED;
1100 }
1101 }
1102
1103 return RPC_S_OK;
1104 }
1105
1106 typedef struct _RpcServerProtseq_sock
1107 {
1108 RpcServerProtseq common;
1109 int mgr_event_rcv;
1110 int mgr_event_snd;
1111 } RpcServerProtseq_sock;
1112
1113 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1114 {
1115 RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1116 if (ps)
1117 {
1118 int fds[2];
1119 if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
1120 {
1121 fcntl(fds[0], F_SETFL, O_NONBLOCK);
1122 fcntl(fds[1], F_SETFL, O_NONBLOCK);
1123 ps->mgr_event_rcv = fds[0];
1124 ps->mgr_event_snd = fds[1];
1125 }
1126 else
1127 {
1128 ERR("socketpair failed with error %s\n", strerror(errno));
1129 HeapFree(GetProcessHeap(), 0, ps);
1130 return NULL;
1131 }
1132 }
1133 return &ps->common;
1134 }
1135
1136 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1137 {
1138 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1139 char dummy = 1;
1140 write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
1141 }
1142
1143 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1144 {
1145 struct pollfd *poll_info = prev_array;
1146 RpcConnection_tcp *conn;
1147 RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1148
1149 EnterCriticalSection(&protseq->cs);
1150
1151 /* open and count connections */
1152 *count = 1;
1153 conn = (RpcConnection_tcp *)protseq->conn;
1154 while (conn) {
1155 if (conn->sock != -1)
1156 (*count)++;
1157 conn = (RpcConnection_tcp *)conn->common.Next;
1158 }
1159
1160 /* make array of connections */
1161 if (poll_info)
1162 poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
1163 else
1164 poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
1165 if (!poll_info)
1166 {
1167 ERR("couldn't allocate poll_info\n");
1168 LeaveCriticalSection(&protseq->cs);
1169 return NULL;
1170 }
1171
1172 poll_info[0].fd = sockps->mgr_event_rcv;
1173 poll_info[0].events = POLLIN;
1174 *count = 1;
1175 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1176 while (conn) {
1177 if (conn->sock != -1)
1178 {
1179 poll_info[*count].fd = conn->sock;
1180 poll_info[*count].events = POLLIN;
1181 (*count)++;
1182 }
1183 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1184 }
1185 LeaveCriticalSection(&protseq->cs);
1186 return poll_info;
1187 }
1188
1189 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1190 {
1191 HeapFree(GetProcessHeap(), 0, array);
1192 }
1193
1194 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1195 {
1196 struct pollfd *poll_info = wait_array;
1197 int ret, i;
1198 RpcConnection *cconn;
1199 RpcConnection_tcp *conn;
1200
1201 if (!poll_info)
1202 return -1;
1203
1204 ret = poll(poll_info, count, -1);
1205 if (ret < 0)
1206 {
1207 ERR("poll failed with error %d\n", ret);
1208 return -1;
1209 }
1210
1211 for (i = 0; i < count; i++)
1212 if (poll_info[i].revents & POLLIN)
1213 {
1214 /* RPC server event */
1215 if (i == 0)
1216 {
1217 char dummy;
1218 read(poll_info[0].fd, &dummy, sizeof(dummy));
1219 return 0;
1220 }
1221
1222 /* find which connection got a RPC */
1223 EnterCriticalSection(&protseq->cs);
1224 conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1225 while (conn) {
1226 if (poll_info[i].fd == conn->sock) break;
1227 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1228 }
1229 cconn = NULL;
1230 if (conn)
1231 RPCRT4_SpawnConnection(&cconn, &conn->common);
1232 else
1233 ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
1234 LeaveCriticalSection(&protseq->cs);
1235 if (cconn)
1236 RPCRT4_new_client(cconn);
1237 else
1238 return -1;
1239 }
1240
1241 return 1;
1242 }
1243
1244 static const struct connection_ops conn_protseq_list[] = {
1245 { "ncacn_np",
1246 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
1247 rpcrt4_conn_np_alloc,
1248 rpcrt4_ncacn_np_open,
1249 rpcrt4_ncacn_np_handoff,
1250 rpcrt4_conn_np_read,
1251 rpcrt4_conn_np_write,
1252 rpcrt4_conn_np_close,
1253 rpcrt4_ncacn_np_get_top_of_tower,
1254 rpcrt4_ncacn_np_parse_top_of_tower,
1255 },
1256 { "ncalrpc",
1257 { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
1258 rpcrt4_conn_np_alloc,
1259 rpcrt4_ncalrpc_open,
1260 rpcrt4_ncalrpc_handoff,
1261 rpcrt4_conn_np_read,
1262 rpcrt4_conn_np_write,
1263 rpcrt4_conn_np_close,
1264 rpcrt4_ncalrpc_get_top_of_tower,
1265 rpcrt4_ncalrpc_parse_top_of_tower,
1266 },
1267 { "ncacn_ip_tcp",
1268 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
1269 rpcrt4_conn_tcp_alloc,
1270 rpcrt4_ncacn_ip_tcp_open,
1271 rpcrt4_conn_tcp_handoff,
1272 rpcrt4_conn_tcp_read,
1273 rpcrt4_conn_tcp_write,
1274 rpcrt4_conn_tcp_close,
1275 rpcrt4_ncacn_ip_tcp_get_top_of_tower,
1276 rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
1277 }
1278 };
1279
1280
1281 static const struct protseq_ops protseq_list[] =
1282 {
1283 {
1284 "ncacn_np",
1285 rpcrt4_protseq_np_alloc,
1286 rpcrt4_protseq_np_signal_state_changed,
1287 rpcrt4_protseq_np_get_wait_array,
1288 rpcrt4_protseq_np_free_wait_array,
1289 rpcrt4_protseq_np_wait_for_new_connection,
1290 rpcrt4_protseq_ncacn_np_open_endpoint,
1291 },
1292 {
1293 "ncalrpc",
1294 rpcrt4_protseq_np_alloc,
1295 rpcrt4_protseq_np_signal_state_changed,
1296 rpcrt4_protseq_np_get_wait_array,
1297 rpcrt4_protseq_np_free_wait_array,
1298 rpcrt4_protseq_np_wait_for_new_connection,
1299 rpcrt4_protseq_ncalrpc_open_endpoint,
1300 },
1301 {
1302 "ncacn_ip_tcp",
1303 rpcrt4_protseq_sock_alloc,
1304 rpcrt4_protseq_sock_signal_state_changed,
1305 rpcrt4_protseq_sock_get_wait_array,
1306 rpcrt4_protseq_sock_free_wait_array,
1307 rpcrt4_protseq_sock_wait_for_new_connection,
1308 rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
1309 },
1310 };
1311
1312 #define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
1313
1314 const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
1315 {
1316 int i;
1317 for(i=0; i<ARRAYSIZE(protseq_list); i++)
1318 if (!strcmp(protseq_list[i].name, protseq))
1319 return &protseq_list[i];
1320 return NULL;
1321 }
1322
1323 static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
1324 {
1325 int i;
1326 for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
1327 if (!strcmp(conn_protseq_list[i].name, protseq))
1328 return &conn_protseq_list[i];
1329 return NULL;
1330 }
1331
1332 /**** interface to rest of code ****/
1333
1334 RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
1335 {
1336 TRACE("(Connection == ^%p)\n", Connection);
1337
1338 assert(!Connection->server);
1339 return Connection->ops->open_connection_client(Connection);
1340 }
1341
1342 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
1343 {
1344 TRACE("(Connection == ^%p)\n", Connection);
1345 if (SecIsValidHandle(&Connection->ctx))
1346 {
1347 DeleteSecurityContext(&Connection->ctx);
1348 SecInvalidateHandle(&Connection->ctx);
1349 }
1350 rpcrt4_conn_close(Connection);
1351 return RPC_S_OK;
1352 }
1353
1354 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
1355 LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
1356 LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
1357 {
1358 const struct connection_ops *ops;
1359 RpcConnection* NewConnection;
1360
1361 ops = rpcrt4_get_conn_protseq_ops(Protseq);
1362 if (!ops)
1363 {
1364 FIXME("not supported for protseq %s\n", Protseq);
1365 return RPC_S_PROTSEQ_NOT_SUPPORTED;
1366 }
1367
1368 NewConnection = ops->alloc();
1369 NewConnection->Next = NULL;
1370 NewConnection->server = server;
1371 NewConnection->ops = ops;
1372 NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
1373 NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
1374 NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
1375 NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
1376 memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
1377 NewConnection->NextCallId = 1;
1378
1379 SecInvalidateHandle(&NewConnection->ctx);
1380 memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
1381 NewConnection->attr = 0;
1382 if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
1383 NewConnection->AuthInfo = AuthInfo;
1384 NewConnection->encryption_auth_len = 0;
1385 NewConnection->signature_auth_len = 0;
1386 if (QOS) RpcQualityOfService_AddRef(QOS);
1387 NewConnection->QOS = QOS;
1388
1389 list_init(&NewConnection->conn_pool_entry);
1390
1391 TRACE("connection: %p\n", NewConnection);
1392 *Connection = NewConnection;
1393
1394 return RPC_S_OK;
1395 }
1396
1397 RPC_STATUS RPCRT4_GetAssociation(LPCSTR Protseq, LPCSTR NetworkAddr,
1398 LPCSTR Endpoint, LPCWSTR NetworkOptions,
1399 RpcAssoc **assoc_out)
1400 {
1401 RpcAssoc *assoc;
1402
1403 EnterCriticalSection(&assoc_list_cs);
1404 LIST_FOR_EACH_ENTRY(assoc, &assoc_list, RpcAssoc, entry)
1405 {
1406 if (!strcmp(Protseq, assoc->Protseq) &&
1407 !strcmp(NetworkAddr, assoc->NetworkAddr) &&
1408 !strcmp(Endpoint, assoc->Endpoint) &&
1409 ((!assoc->NetworkOptions && !NetworkOptions) || !strcmpW(NetworkOptions, assoc->NetworkOptions)))
1410 {
1411 assoc->refs++;
1412 *assoc_out = assoc;
1413 LeaveCriticalSection(&assoc_list_cs);
1414 TRACE("using existing assoc %p\n", assoc);
1415 return RPC_S_OK;
1416 }
1417 }
1418
1419 assoc = HeapAlloc(GetProcessHeap(), 0, sizeof(*assoc));
1420 if (!assoc)
1421 {
1422 LeaveCriticalSection(&assoc_list_cs);
1423 return RPC_S_OUT_OF_RESOURCES;
1424 }
1425 assoc->refs = 1;
1426 list_init(&assoc->connection_pool);
1427 InitializeCriticalSection(&assoc->cs);
1428 assoc->Protseq = RPCRT4_strdupA(Protseq);
1429 assoc->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
1430 assoc->Endpoint = RPCRT4_strdupA(Endpoint);
1431 assoc->NetworkOptions = NetworkOptions ? RPCRT4_strdupW(NetworkOptions) : NULL;
1432 assoc->assoc_group_id = 0;
1433 list_add_head(&assoc_list, &assoc->entry);
1434 *assoc_out = assoc;
1435
1436 LeaveCriticalSection(&assoc_list_cs);
1437
1438 TRACE("new assoc %p\n", assoc);
1439
1440 return RPC_S_OK;
1441 }
1442
1443 ULONG RpcAssoc_Release(RpcAssoc *assoc)
1444 {
1445 ULONG refs;
1446
1447 EnterCriticalSection(&assoc_list_cs);
1448 refs = --assoc->refs;
1449 if (!refs)
1450 list_remove(&assoc->entry);
1451 LeaveCriticalSection(&assoc_list_cs);
1452
1453 if (!refs)
1454 {
1455 RpcConnection *Connection, *cursor2;
1456
1457 TRACE("destroying assoc %p\n", assoc);
1458
1459 LIST_FOR_EACH_ENTRY_SAFE(Connection, cursor2, &assoc->connection_pool, RpcConnection, conn_pool_entry)
1460 {
1461 list_remove(&Connection->conn_pool_entry);
1462 RPCRT4_DestroyConnection(Connection);
1463 }
1464
1465 HeapFree(GetProcessHeap(), 0, assoc->NetworkOptions);
1466 HeapFree(GetProcessHeap(), 0, assoc->Endpoint);
1467 HeapFree(GetProcessHeap(), 0, assoc->NetworkAddr);
1468 HeapFree(GetProcessHeap(), 0, assoc->Protseq);
1469
1470 HeapFree(GetProcessHeap(), 0, assoc);
1471 }
1472
1473 return refs;
1474 }
1475
1476 #define ROUND_UP(value, alignment) (((value) + ((alignment) - 1)) & ~((alignment)-1))
1477
1478 static RPC_STATUS RpcAssoc_BindConnection(const RpcAssoc *assoc, RpcConnection *conn,
1479 const RPC_SYNTAX_IDENTIFIER *InterfaceId,
1480 const RPC_SYNTAX_IDENTIFIER *TransferSyntax)
1481 {
1482 RpcPktHdr *hdr;
1483 RpcPktHdr *response_hdr;
1484 RPC_MESSAGE msg;
1485 RPC_STATUS status;
1486
1487 TRACE("sending bind request to server\n");
1488
1489 hdr = RPCRT4_BuildBindHeader(NDR_LOCAL_DATA_REPRESENTATION,
1490 RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE,
1491 assoc->assoc_group_id,
1492 InterfaceId, TransferSyntax);
1493
1494 status = RPCRT4_Send(conn, hdr, NULL, 0);
1495 RPCRT4_FreeHeader(hdr);
1496 if (status != RPC_S_OK)
1497 return status;
1498
1499 status = RPCRT4_Receive(conn, &response_hdr, &msg);
1500 if (status != RPC_S_OK)
1501 {
1502 ERR("receive failed\n");
1503 return status;
1504 }
1505
1506 switch (response_hdr->common.ptype)
1507 {
1508 case PKT_BIND_ACK:
1509 {
1510 RpcAddressString *server_address = msg.Buffer;
1511 if ((msg.BufferLength >= FIELD_OFFSET(RpcAddressString, string[0])) ||
1512 (msg.BufferLength >= ROUND_UP(FIELD_OFFSET(RpcAddressString, string[server_address->length]), 4)))
1513 {
1514 unsigned short remaining = msg.BufferLength -
1515 ROUND_UP(FIELD_OFFSET(RpcAddressString, string[server_address->length]), 4);
1516 RpcResults *results = (RpcResults*)((ULONG_PTR)server_address +
1517 ROUND_UP(FIELD_OFFSET(RpcAddressString, string[server_address->length]), 4));
1518 if ((results->num_results == 1) && (remaining >= sizeof(*results)))
1519 {
1520 switch (results->results[0].result)
1521 {
1522 case RESULT_ACCEPT:
1523 conn->assoc_group_id = response_hdr->bind_ack.assoc_gid;
1524 conn->MaxTransmissionSize = response_hdr->bind_ack.max_tsize;
1525 conn->ActiveInterface = *InterfaceId;
1526 break;
1527 case RESULT_PROVIDER_REJECTION:
1528 switch (results->results[0].reason)
1529 {
1530 case REASON_ABSTRACT_SYNTAX_NOT_SUPPORTED:
1531 ERR("syntax %s, %d.%d not supported\n",
1532 debugstr_guid(&InterfaceId->SyntaxGUID),
1533 InterfaceId->SyntaxVersion.MajorVersion,
1534 InterfaceId->SyntaxVersion.MinorVersion);
1535 status = RPC_S_UNKNOWN_IF;
1536 break;
1537 case REASON_TRANSFER_SYNTAXES_NOT_SUPPORTED:
1538 ERR("transfer syntax not supported\n");
1539 status = RPC_S_SERVER_UNAVAILABLE;
1540 break;
1541 case REASON_NONE:
1542 default:
1543 status = RPC_S_CALL_FAILED_DNE;
1544 }
1545 break;
1546 case RESULT_USER_REJECTION:
1547 default:
1548 ERR("rejection result %d\n", results->results[0].result);
1549 status = RPC_S_CALL_FAILED_DNE;
1550 }
1551 }
1552 else
1553 {
1554 ERR("incorrect results size\n");
1555 status = RPC_S_CALL_FAILED_DNE;
1556 }
1557 }
1558 else
1559 {
1560 ERR("bind ack packet too small (%d)\n", msg.BufferLength);
1561 status = RPC_S_PROTOCOL_ERROR;
1562 }
1563 break;
1564 }
1565 case PKT_BIND_NACK:
1566 switch (response_hdr->bind_nack.reject_reason)
1567 {
1568 case REJECT_LOCAL_LIMIT_EXCEEDED:
1569 case REJECT_TEMPORARY_CONGESTION:
1570 ERR("server too busy\n");
1571 status = RPC_S_SERVER_TOO_BUSY;
1572 break;
1573 case REJECT_PROTOCOL_VERSION_NOT_SUPPORTED:
1574 ERR("protocol version not supported\n");
1575 status = RPC_S_PROTOCOL_ERROR;
1576 break;
1577 case REJECT_UNKNOWN_AUTHN_SERVICE:
1578 ERR("unknown authentication service\n");
1579 status = RPC_S_UNKNOWN_AUTHN_SERVICE;
1580 break;
1581 case REJECT_INVALID_CHECKSUM:
1582 ERR("invalid checksum\n");
1583 status = ERROR_ACCESS_DENIED;
1584 break;
1585 default:
1586 ERR("rejected bind for reason %d\n", response_hdr->bind_nack.reject_reason);
1587 status = RPC_S_CALL_FAILED_DNE;
1588 }
1589 break;
1590 default:
1591 ERR("wrong packet type received %d\n", response_hdr->common.ptype);
1592 status = RPC_S_PROTOCOL_ERROR;
1593 break;
1594 }
1595
1596 RPCRT4_FreeHeader(response_hdr);
1597 return status;
1598 }
1599
1600 static RpcConnection *RpcAssoc_GetIdleConnection(RpcAssoc *assoc,
1601 const RPC_SYNTAX_IDENTIFIER *InterfaceId,
1602 const RPC_SYNTAX_IDENTIFIER *TransferSyntax, const RpcAuthInfo *AuthInfo,
1603 const RpcQualityOfService *QOS)
1604 {
1605 RpcConnection *Connection;
1606 EnterCriticalSection(&assoc->cs);
1607 /* try to find a compatible connection from the connection pool */
1608 LIST_FOR_EACH_ENTRY(Connection, &assoc->connection_pool, RpcConnection, conn_pool_entry)
1609 {
1610 if (!memcmp(&Connection->ActiveInterface, InterfaceId,
1611 sizeof(RPC_SYNTAX_IDENTIFIER)) &&
1612 RpcAuthInfo_IsEqual(Connection->AuthInfo, AuthInfo) &&
1613 RpcQualityOfService_IsEqual(Connection->QOS, QOS))
1614 {
1615 list_remove(&Connection->conn_pool_entry);
1616 LeaveCriticalSection(&assoc->cs);
1617 TRACE("got connection from pool %p\n", Connection);
1618 return Connection;
1619 }
1620 }
1621
1622 LeaveCriticalSection(&assoc->cs);
1623 return NULL;
1624 }
1625
1626 RPC_STATUS RpcAssoc_GetClientConnection(RpcAssoc *assoc,
1627 const RPC_SYNTAX_IDENTIFIER *InterfaceId,
1628 const RPC_SYNTAX_IDENTIFIER *TransferSyntax, RpcAuthInfo *AuthInfo,
1629 RpcQualityOfService *QOS, RpcConnection **Connection)
1630 {
1631 RpcConnection *NewConnection;
1632 RPC_STATUS status;
1633
1634 *Connection = RpcAssoc_GetIdleConnection(assoc, InterfaceId, TransferSyntax, AuthInfo, QOS);
1635 if (*Connection)
1636 return RPC_S_OK;
1637
1638 /* create a new connection */
1639 status = RPCRT4_CreateConnection(&NewConnection, FALSE /* is this a server connection? */,
1640 assoc->Protseq, assoc->NetworkAddr,
1641 assoc->Endpoint, assoc->NetworkOptions,
1642 AuthInfo, QOS);
1643 if (status != RPC_S_OK)
1644 return status;
1645
1646 status = RPCRT4_OpenClientConnection(NewConnection);
1647 if (status != RPC_S_OK)
1648 {
1649 RPCRT4_DestroyConnection(NewConnection);
1650 return status;
1651 }
1652
1653 status = RpcAssoc_BindConnection(assoc, NewConnection, InterfaceId, TransferSyntax);
1654 if (status != RPC_S_OK)
1655 {
1656 RPCRT4_DestroyConnection(NewConnection);
1657 return status;
1658 }
1659
1660 *Connection = NewConnection;
1661
1662 return RPC_S_OK;
1663 }
1664
1665 void RpcAssoc_ReleaseIdleConnection(RpcAssoc *assoc, RpcConnection *Connection)
1666 {
1667 assert(!Connection->server);
1668 EnterCriticalSection(&assoc->cs);
1669 if (!assoc->assoc_group_id) assoc->assoc_group_id = Connection->assoc_group_id;
1670 list_add_head(&assoc->connection_pool, &Connection->conn_pool_entry);
1671 LeaveCriticalSection(&assoc->cs);
1672 }
1673
1674
1675 RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
1676 {
1677 RPC_STATUS err;
1678
1679 err = RPCRT4_CreateConnection(Connection, OldConnection->server,
1680 rpcrt4_conn_get_name(OldConnection),
1681 OldConnection->NetworkAddr,
1682 OldConnection->Endpoint, NULL,
1683 OldConnection->AuthInfo, OldConnection->QOS);
1684 if (err == RPC_S_OK)
1685 rpcrt4_conn_handoff(OldConnection, *Connection);
1686 return err;
1687 }
1688
1689 RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection)
1690 {
1691 TRACE("connection: %p\n", Connection);
1692
1693 RPCRT4_CloseConnection(Connection);
1694 RPCRT4_strfree(Connection->Endpoint);
1695 RPCRT4_strfree(Connection->NetworkAddr);
1696 HeapFree(GetProcessHeap(), 0, Connection->NetworkOptions);
1697 if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
1698 if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
1699 HeapFree(GetProcessHeap(), 0, Connection);
1700 return RPC_S_OK;
1701 }
1702
1703 RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
1704 size_t *tower_size,
1705 const char *protseq,
1706 const char *networkaddr,
1707 const char *endpoint)
1708 {
1709 twr_empty_floor_t *protocol_floor;
1710 const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
1711
1712 *tower_size = 0;
1713
1714 if (!protseq_ops)
1715 return RPC_S_INVALID_RPC_PROTSEQ;
1716
1717 if (!tower_data)
1718 {
1719 *tower_size = sizeof(*protocol_floor);
1720 *tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
1721 return RPC_S_OK;
1722 }
1723
1724 protocol_floor = (twr_empty_floor_t *)tower_data;
1725 protocol_floor->count_lhs = sizeof(protocol_floor->protid);
1726 protocol_floor->protid = protseq_ops->epm_protocols[0];
1727 protocol_floor->count_rhs = 0;
1728
1729 tower_data += sizeof(*protocol_floor);
1730
1731 *tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
1732 if (!*tower_size)
1733 return EPT_S_NOT_REGISTERED;
1734
1735 *tower_size += sizeof(*protocol_floor);
1736
1737 return RPC_S_OK;
1738 }
1739
1740 RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
1741 size_t tower_size,
1742 char **protseq,
1743 char **networkaddr,
1744 char **endpoint)
1745 {
1746 const twr_empty_floor_t *protocol_floor;
1747 const twr_empty_floor_t *floor4;
1748 const struct connection_ops *protseq_ops = NULL;
1749 RPC_STATUS status;
1750 int i;
1751
1752 if (tower_size < sizeof(*protocol_floor))
1753 return EPT_S_NOT_REGISTERED;
1754
1755 protocol_floor = (const twr_empty_floor_t *)tower_data;
1756 tower_data += sizeof(*protocol_floor);
1757 tower_size -= sizeof(*protocol_floor);
1758 if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
1759 (protocol_floor->count_rhs > tower_size))
1760 return EPT_S_NOT_REGISTERED;
1761 tower_data += protocol_floor->count_rhs;
1762 tower_size -= protocol_floor->count_rhs;
1763
1764 floor4 = (const twr_empty_floor_t *)tower_data;
1765 if ((tower_size < sizeof(*floor4)) ||
1766 (floor4->count_lhs != sizeof(floor4->protid)))
1767 return EPT_S_NOT_REGISTERED;
1768
1769 for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
1770 if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
1771 (floor4->protid == conn_protseq_list[i].epm_protocols[1]))
1772 {
1773 protseq_ops = &conn_protseq_list[i];
1774 break;
1775 }
1776
1777 if (!protseq_ops)
1778 return EPT_S_NOT_REGISTERED;
1779
1780 status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
1781
1782 if ((status == RPC_S_OK) && protseq)
1783 {
1784 *protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
1785 strcpy(*protseq, protseq_ops->name);
1786 }
1787
1788 return status;
1789 }
1790
1791 /***********************************************************************
1792 * RpcNetworkIsProtseqValidW (RPCRT4.@)
1793 *
1794 * Checks if the given protocol sequence is known by the RPC system.
1795 * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
1796 *
1797 */
1798 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
1799 {
1800 char ps[0x10];
1801
1802 WideCharToMultiByte(CP_ACP, 0, protseq, -1,
1803 ps, sizeof ps, NULL, NULL);
1804 if (rpcrt4_get_conn_protseq_ops(ps))
1805 return RPC_S_OK;
1806
1807 FIXME("Unknown protseq %s\n", debugstr_w(protseq));
1808
1809 return RPC_S_INVALID_RPC_PROTSEQ;
1810 }
1811
1812 /***********************************************************************
1813 * RpcNetworkIsProtseqValidA (RPCRT4.@)
1814 */
1815 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
1816 {
1817 UNICODE_STRING protseqW;
1818
1819 if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
1820 {
1821 RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
1822 RtlFreeUnicodeString(&protseqW);
1823 return ret;
1824 }
1825 return RPC_S_OUT_OF_MEMORY;
1826 }
useful hacks and other patches not (yet) suitable for mainline