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winealsa: Remove GetAudioSessionWrapper.
[wine.git] / server / sock.c
blob550fe61e4771276ba22c972a9946c0daf9b52f9a
1 /*
2 * Server-side socket management
3 *
4 * Copyright (C) 1999 Marcus Meissner, Ove Kåven
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 *
20 * FIXME: we use read|write access in all cases. Shouldn't we depend that
21 * on the access of the current handle?
22 */
23
24 #include "config.h"
25
26 #include <assert.h>
27 #include <fcntl.h>
28 #include <stdarg.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include <stdlib.h>
32 #include <errno.h>
33 #ifdef HAVE_IFADDRS_H
34 # include <ifaddrs.h>
35 #endif
36 #ifdef HAVE_NET_IF_H
37 # include <net/if.h>
38 #endif
39 #ifdef HAVE_NETINET_IN_H
40 # include <netinet/in.h>
41 #endif
42 #ifdef HAVE_NETINET_TCP_H
43 # include <netinet/tcp.h>
44 #endif
45 #include <poll.h>
46 #include <sys/time.h>
47 #include <sys/types.h>
48 #include <sys/socket.h>
49 #include <sys/ioctl.h>
50 #ifdef HAVE_SYS_FILIO_H
51 # include <sys/filio.h>
52 #endif
53 #include <time.h>
54 #include <unistd.h>
55 #include <limits.h>
56 #ifdef HAVE_LINUX_FILTER_H
57 # include <linux/filter.h>
58 #endif
59 #ifdef HAVE_LINUX_RTNETLINK_H
60 # include <linux/rtnetlink.h>
61 #endif
62
63 #ifdef HAVE_NETIPX_IPX_H
64 # include <netipx/ipx.h>
65 # define HAS_IPX
66 #elif defined(HAVE_LINUX_IPX_H)
67 # ifdef HAVE_ASM_TYPES_H
68 # include <asm/types.h>
69 # endif
70 # ifdef HAVE_LINUX_TYPES_H
71 # include <linux/types.h>
72 # endif
73 # include <linux/ipx.h>
74 # define HAS_IPX
75 #endif
76
77 #ifdef HAVE_LINUX_IRDA_H
78 # ifdef HAVE_LINUX_TYPES_H
79 # include <linux/types.h>
80 # endif
81 # include <linux/irda.h>
82 # define HAS_IRDA
83 #endif
84
85 #include "ntstatus.h"
86 #define WIN32_NO_STATUS
87 #include "windef.h"
88 #include "winternl.h"
89 #include "winerror.h"
90 #define USE_WS_PREFIX
91 #include "winsock2.h"
92 #include "ws2tcpip.h"
93 #include "wsipx.h"
94 #include "af_irda.h"
95 #include "wine/afd.h"
96 #include "wine/rbtree.h"
97
98 #include "process.h"
99 #include "file.h"
100 #include "handle.h"
101 #include "thread.h"
102 #include "request.h"
103 #include "user.h"
104
105 #if defined(linux) && !defined(IP_UNICAST_IF)
106 #define IP_UNICAST_IF 50
107 #endif
108
109 static const char magic_loopback_addr[] = {127, 12, 34, 56};
110
111 union win_sockaddr
112 {
113 struct WS_sockaddr addr;
114 struct WS_sockaddr_in in;
115 struct WS_sockaddr_in6 in6;
116 struct WS_sockaddr_ipx ipx;
117 SOCKADDR_IRDA irda;
118 };
119
120 union unix_sockaddr
121 {
122 struct sockaddr addr;
123 struct sockaddr_in in;
124 struct sockaddr_in6 in6;
125 #ifdef HAS_IPX
126 struct sockaddr_ipx ipx;
127 #endif
128 #ifdef HAS_IRDA
129 struct sockaddr_irda irda;
130 #endif
131 };
132
133 static struct list poll_list = LIST_INIT( poll_list );
134
135 struct poll_req
136 {
137 struct list entry;
138 struct async *async;
139 struct iosb *iosb;
140 struct timeout_user *timeout;
141 timeout_t orig_timeout;
142 int exclusive;
143 int pending;
144 unsigned int count;
145 struct
146 {
147 struct sock *sock;
148 int mask;
149 obj_handle_t handle;
150 int flags;
151 unsigned int status;
152 } sockets[1];
153 };
154
155 struct accept_req
156 {
157 struct list entry;
158 struct async *async;
159 struct iosb *iosb;
160 struct sock *sock, *acceptsock;
161 int accepted;
162 unsigned int recv_len, local_len;
163 };
164
165 struct connect_req
166 {
167 struct async *async;
168 struct iosb *iosb;
169 struct sock *sock;
170 unsigned int addr_len, send_len, send_cursor;
171 };
172
173 struct send_req
174 {
175 struct iosb *iosb;
176 struct sock *sock;
177 };
178
179 enum connection_state
180 {
181 SOCK_LISTENING,
182 SOCK_UNCONNECTED,
183 SOCK_CONNECTING,
184 SOCK_CONNECTED,
185 SOCK_CONNECTIONLESS,
186 };
187
188 struct bound_addr
189 {
190 struct rb_entry entry;
191 union unix_sockaddr addr;
192 int match_any_addr;
193 int reuse_count;
194 };
195
196 #define MAX_ICMP_HISTORY_LENGTH 8
197
198 struct sock
199 {
200 struct object obj; /* object header */
201 struct fd *fd; /* socket file descriptor */
202 enum connection_state state; /* connection state */
203 unsigned int mask; /* event mask */
204 /* pending AFD_POLL_* events which have not yet been reported to the application */
205 unsigned int pending_events;
206 /* AFD_POLL_* events which have already been reported and should not be
207 * selected for again until reset by a relevant call.
208 *
209 * For example, if AFD_POLL_READ is set here and not in pending_events, it
210 * has already been reported and consumed, and we should not report it
211 * again, even if POLLIN is signaled, until it is reset by e.g recv().
212 *
213 * If an event has been signaled and not consumed yet, it will be set in
214 * both pending_events and reported_events (as we should only ever report
215 * any event once until it is reset.) */
216 unsigned int reported_events;
217 unsigned short proto; /* socket protocol */
218 unsigned short type; /* socket type */
219 unsigned short family; /* socket family */
220 struct event *event; /* event object */
221 user_handle_t window; /* window to send the message to */
222 unsigned int message; /* message to send */
223 obj_handle_t wparam; /* message wparam (socket handle) */
224 int errors[AFD_POLL_BIT_COUNT]; /* event errors */
225 timeout_t connect_time;/* time the socket was connected */
226 struct sock *deferred; /* socket that waits for a deferred accept */
227 struct async_queue read_q; /* queue for asynchronous reads */
228 struct async_queue write_q; /* queue for asynchronous writes */
229 struct async_queue ifchange_q; /* queue for interface change notifications */
230 struct async_queue accept_q; /* queue for asynchronous accepts */
231 struct async_queue connect_q; /* queue for asynchronous connects */
232 struct async_queue poll_q; /* queue for asynchronous polls */
233 struct object *ifchange_obj; /* the interface change notification object */
234 struct list ifchange_entry; /* entry in ifchange notification list */
235 struct list accept_list; /* list of pending accept requests */
236 struct accept_req *accept_recv_req; /* pending accept-into request which will recv on this socket */
237 struct connect_req *connect_req; /* pending connection request */
238 struct poll_req *main_poll; /* main poll */
239 union win_sockaddr addr; /* socket name */
240 int addr_len; /* socket name length */
241 unsigned int rcvbuf; /* advisory recv buffer size */
242 unsigned int sndbuf; /* advisory send buffer size */
243 unsigned int rcvtimeo; /* receive timeout in ms */
244 unsigned int sndtimeo; /* send timeout in ms */
245 struct
246 {
247 unsigned short icmp_id;
248 unsigned short icmp_seq;
249 }
250 icmp_fixup_data[MAX_ICMP_HISTORY_LENGTH]; /* Sent ICMP packets history used to fixup reply id. */
251 struct bound_addr *bound_addr[2]; /* Links to the entries in bound addresses tree. */
252 unsigned int icmp_fixup_data_len; /* Sent ICMP packets history length. */
253 unsigned int rd_shutdown : 1; /* is the read end shut down? */
254 unsigned int wr_shutdown : 1; /* is the write end shut down? */
255 unsigned int wr_shutdown_pending : 1; /* is a write shutdown pending? */
256 unsigned int hangup : 1; /* has the read end received a hangup? */
257 unsigned int aborted : 1; /* did we get a POLLERR or irregular POLLHUP? */
258 unsigned int nonblocking : 1; /* is the socket nonblocking? */
259 unsigned int bound : 1; /* is the socket bound? */
260 unsigned int reset : 1; /* did we get a TCP reset? */
261 unsigned int reuseaddr : 1; /* winsock SO_REUSEADDR option value */
262 unsigned int exclusiveaddruse : 1; /* winsock SO_EXCLUSIVEADDRUSE option value */
263 };
264
265 static int is_tcp_socket( struct sock *sock )
266 {
267 return sock->type == WS_SOCK_STREAM && (sock->family == WS_AF_INET || sock->family == WS_AF_INET6);
268 }
269
270 static int addr_compare( const void *key, const struct wine_rb_entry *entry )
271 {
272 const struct bound_addr *bound_addr = RB_ENTRY_VALUE(entry, struct bound_addr, entry);
273 const struct bound_addr *addr = key;
274
275 if (addr->addr.addr.sa_family != bound_addr->addr.addr.sa_family)
276 return addr->addr.addr.sa_family < bound_addr->addr.addr.sa_family ? -1 : 1;
277
278 if (addr->addr.addr.sa_family == AF_INET)
279 {
280 if (addr->addr.in.sin_port != bound_addr->addr.in.sin_port)
281 return addr->addr.in.sin_port < bound_addr->addr.in.sin_port ? -1 : 1;
282 if (bound_addr->match_any_addr || addr->match_any_addr
283 || addr->addr.in.sin_addr.s_addr == bound_addr->addr.in.sin_addr.s_addr)
284 return 0;
285 return addr->addr.in.sin_addr.s_addr < bound_addr->addr.in.sin_addr.s_addr ? -1 : 1;
286 }
287
288 assert( addr->addr.addr.sa_family == AF_INET6 );
289 if (addr->addr.in6.sin6_port != bound_addr->addr.in6.sin6_port)
290 return addr->addr.in6.sin6_port < bound_addr->addr.in6.sin6_port ? -1 : 1;
291 if (bound_addr->match_any_addr || addr->match_any_addr) return 0;
292 return memcmp( &addr->addr.in6.sin6_addr, &bound_addr->addr.in6.sin6_addr, sizeof(addr->addr.in6.sin6_addr) );
293 }
294
295 static int ipv4addr_from_v6( union unix_sockaddr *v4addr, const struct sockaddr_in6 *in6, int map_unspecified )
296 {
297 v4addr->in.sin_family = AF_INET;
298 v4addr->in.sin_port = in6->sin6_port;
299
300 if (map_unspecified && IN6_IS_ADDR_UNSPECIFIED(&in6->sin6_addr))
301 {
302 v4addr->in.sin_addr.s_addr = htonl( INADDR_ANY );
303 return 1;
304 }
305 if (IN6_IS_ADDR_V4COMPAT(&in6->sin6_addr) || IN6_IS_ADDR_V4MAPPED(&in6->sin6_addr))
306 {
307 memcpy( &v4addr->in.sin_addr.s_addr, &in6->sin6_addr.s6_addr[12], sizeof(v4addr->in.sin_addr.s_addr) );
308 return 1;
309 }
310 return 0;
311 }
312
313 static struct rb_tree bound_addresses_tree = { addr_compare };
314
315 static int should_track_conflicts_for_addr( struct sock *sock, const union unix_sockaddr *addr )
316 {
317 if (!is_tcp_socket( sock )) return 0;
318
319 if (sock->family == WS_AF_INET && addr->addr.sa_family == AF_INET && addr->in.sin_port)
320 return 1;
321 else if (sock->family == WS_AF_INET6 && addr->addr.sa_family == AF_INET6 && addr->in6.sin6_port)
322 return 1;
323
324 return 0;
325 }
326
327 static int is_any_addr( const union unix_sockaddr *addr )
328 {
329 if (addr->addr.sa_family == AF_INET && addr->in.sin_addr.s_addr == htonl( INADDR_ANY ))
330 return 1;
331 if (addr->addr.sa_family == AF_INET6 && IN6_IS_ADDR_UNSPECIFIED(&addr->in6.sin6_addr))
332 return 1;
333 return 0;
334 }
335
336 static int check_addr_usage( struct sock *sock, const union unix_sockaddr *addr, int v6only )
337 {
338 struct bound_addr *bound_addr, search_addr;
339 struct rb_entry *entry;
340
341 if (!should_track_conflicts_for_addr( sock, addr )) return 0;
342
343 search_addr.addr = *addr;
344 search_addr.match_any_addr = sock->exclusiveaddruse && is_any_addr( addr );
345
346 if ((entry = rb_get( &bound_addresses_tree, &search_addr )))
347 {
348 bound_addr = WINE_RB_ENTRY_VALUE(entry, struct bound_addr, entry);
349 if (bound_addr->reuse_count == -1 || !sock->reuseaddr)
350 {
351 set_error( sock->reuseaddr || bound_addr->match_any_addr
352 ? STATUS_ACCESS_DENIED : STATUS_SHARING_VIOLATION );
353 return 1;
354 }
355 }
356
357 if (sock->family != WS_AF_INET6 || v6only) return 0;
358 if (!ipv4addr_from_v6( &search_addr.addr, &addr->in6, sock->exclusiveaddruse )) return 0;
359
360 search_addr.match_any_addr = sock->exclusiveaddruse && is_any_addr( &search_addr.addr );
361 if ((entry = rb_get( &bound_addresses_tree, &search_addr )))
362 {
363 bound_addr = WINE_RB_ENTRY_VALUE(entry, struct bound_addr, entry);
364 if (bound_addr->reuse_count == -1 || !sock->reuseaddr)
365 {
366 set_error( sock->reuseaddr || bound_addr->match_any_addr
367 ? STATUS_ACCESS_DENIED : STATUS_SHARING_VIOLATION );
368 return 1;
369 }
370 }
371 return 0;
372 }
373
374 static struct bound_addr *register_bound_address( struct sock *sock, const union unix_sockaddr *addr )
375 {
376 struct bound_addr *bound_addr, *temp;
377
378 if (!(bound_addr = mem_alloc( sizeof(*bound_addr) )))
379 return NULL;
380
381 bound_addr->addr = *addr;
382 bound_addr->match_any_addr = sock->exclusiveaddruse && is_any_addr( addr );
383
384 if (rb_put( &bound_addresses_tree, bound_addr, &bound_addr->entry ))
385 {
386 temp = bound_addr;
387 bound_addr = WINE_RB_ENTRY_VALUE(rb_get( &bound_addresses_tree, temp ), struct bound_addr, entry);
388 free( temp );
389 if (bound_addr->reuse_count == -1)
390 {
391 if (debug_level)
392 fprintf( stderr, "register_bound_address: address being updated is already exclusively bound\n" );
393 return NULL;
394 }
395 ++bound_addr->reuse_count;
396 }
397 else
398 {
399 bound_addr->reuse_count = sock->reuseaddr ? 1 : -1;
400 }
401 return bound_addr;
402 }
403
404 static void update_addr_usage( struct sock *sock, const union unix_sockaddr *addr, int v6only )
405 {
406 union unix_sockaddr v4addr;
407
408 assert( !sock->bound_addr[0] && !sock->bound_addr[1] );
409
410 if (!should_track_conflicts_for_addr( sock, addr )) return;
411
412 sock->bound_addr[0] = register_bound_address( sock, addr );
413
414 if (sock->family != WS_AF_INET6 || v6only) return;
415
416 if (!ipv4addr_from_v6( &v4addr, &addr->in6, sock->exclusiveaddruse )) return;
417
418 sock->bound_addr[1] = register_bound_address( sock, &v4addr );
419 }
420
421 static void sock_dump( struct object *obj, int verbose );
422 static struct fd *sock_get_fd( struct object *obj );
423 static int sock_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
424 static void sock_destroy( struct object *obj );
425 static struct object *sock_get_ifchange( struct sock *sock );
426 static void sock_release_ifchange( struct sock *sock );
427
428 static int sock_get_poll_events( struct fd *fd );
429 static void sock_poll_event( struct fd *fd, int event );
430 static enum server_fd_type sock_get_fd_type( struct fd *fd );
431 static void sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
432 static void sock_cancel_async( struct fd *fd, struct async *async );
433 static void sock_reselect_async( struct fd *fd, struct async_queue *queue );
434
435 static int accept_into_socket( struct sock *sock, struct sock *acceptsock );
436 static struct sock *accept_socket( struct sock *sock );
437 static int sock_get_ntstatus( int err );
438 static unsigned int sock_get_error( int err );
439 static void poll_socket( struct sock *poll_sock, struct async *async, int exclusive, timeout_t timeout,
440 unsigned int count, const struct afd_poll_socket_64 *sockets );
441
442 static const struct object_ops sock_ops =
443 {
444 sizeof(struct sock), /* size */
445 &file_type, /* type */
446 sock_dump, /* dump */
447 add_queue, /* add_queue */
448 remove_queue, /* remove_queue */
449 default_fd_signaled, /* signaled */
450 no_satisfied, /* satisfied */
451 no_signal, /* signal */
452 sock_get_fd, /* get_fd */
453 default_map_access, /* map_access */
454 default_get_sd, /* get_sd */
455 default_set_sd, /* set_sd */
456 no_get_full_name, /* get_full_name */
457 no_lookup_name, /* lookup_name */
458 no_link_name, /* link_name */
459 NULL, /* unlink_name */
460 no_open_file, /* open_file */
461 no_kernel_obj_list, /* get_kernel_obj_list */
462 sock_close_handle, /* close_handle */
463 sock_destroy /* destroy */
464 };
465
466 static const struct fd_ops sock_fd_ops =
467 {
468 sock_get_poll_events, /* get_poll_events */
469 sock_poll_event, /* poll_event */
470 sock_get_fd_type, /* get_fd_type */
471 no_fd_read, /* read */
472 no_fd_write, /* write */
473 no_fd_flush, /* flush */
474 default_fd_get_file_info, /* get_file_info */
475 no_fd_get_volume_info, /* get_volume_info */
476 sock_ioctl, /* ioctl */
477 sock_cancel_async, /* cancel_async */
478 no_fd_queue_async, /* queue_async */
479 sock_reselect_async /* reselect_async */
480 };
481
482 static int sockaddr_from_unix( const union unix_sockaddr *uaddr, struct WS_sockaddr *wsaddr, socklen_t wsaddrlen )
483 {
484 memset( wsaddr, 0, wsaddrlen );
485
486 switch (uaddr->addr.sa_family)
487 {
488 case AF_INET:
489 {
490 struct WS_sockaddr_in win = {0};
491
492 if (wsaddrlen < sizeof(win)) return -1;
493 win.sin_family = WS_AF_INET;
494 win.sin_port = uaddr->in.sin_port;
495 memcpy( &win.sin_addr, &uaddr->in.sin_addr, sizeof(win.sin_addr) );
496 memcpy( wsaddr, &win, sizeof(win) );
497 return sizeof(win);
498 }
499
500 case AF_INET6:
501 {
502 struct WS_sockaddr_in6 win = {0};
503
504 if (wsaddrlen < sizeof(win)) return -1;
505 win.sin6_family = WS_AF_INET6;
506 win.sin6_port = uaddr->in6.sin6_port;
507 win.sin6_flowinfo = uaddr->in6.sin6_flowinfo;
508 memcpy( &win.sin6_addr, &uaddr->in6.sin6_addr, sizeof(win.sin6_addr) );
509 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
510 win.sin6_scope_id = uaddr->in6.sin6_scope_id;
511 #endif
512 memcpy( wsaddr, &win, sizeof(win) );
513 return sizeof(win);
514 }
515
516 #ifdef HAS_IPX
517 case AF_IPX:
518 {
519 struct WS_sockaddr_ipx win = {0};
520
521 if (wsaddrlen < sizeof(win)) return -1;
522 win.sa_family = WS_AF_IPX;
523 memcpy( win.sa_netnum, &uaddr->ipx.sipx_network, sizeof(win.sa_netnum) );
524 memcpy( win.sa_nodenum, &uaddr->ipx.sipx_node, sizeof(win.sa_nodenum) );
525 win.sa_socket = uaddr->ipx.sipx_port;
526 memcpy( wsaddr, &win, sizeof(win) );
527 return sizeof(win);
528 }
529 #endif
530
531 #ifdef HAS_IRDA
532 case AF_IRDA:
533 {
534 SOCKADDR_IRDA win;
535
536 if (wsaddrlen < sizeof(win)) return -1;
537 win.irdaAddressFamily = WS_AF_IRDA;
538 memcpy( win.irdaDeviceID, &uaddr->irda.sir_addr, sizeof(win.irdaDeviceID) );
539 if (uaddr->irda.sir_lsap_sel != LSAP_ANY)
540 snprintf( win.irdaServiceName, sizeof(win.irdaServiceName), "LSAP-SEL%u", uaddr->irda.sir_lsap_sel );
541 else
542 memcpy( win.irdaServiceName, uaddr->irda.sir_name, sizeof(win.irdaServiceName) );
543 memcpy( wsaddr, &win, sizeof(win) );
544 return sizeof(win);
545 }
546 #endif
547
548 case AF_UNSPEC:
549 return 0;
550
551 default:
552 return -1;
553
554 }
555 }
556
557 static socklen_t sockaddr_to_unix( const struct WS_sockaddr *wsaddr, int wsaddrlen, union unix_sockaddr *uaddr )
558 {
559 memset( uaddr, 0, sizeof(*uaddr) );
560
561 switch (wsaddr->sa_family)
562 {
563 case WS_AF_INET:
564 {
565 struct WS_sockaddr_in win = {0};
566
567 if (wsaddrlen < sizeof(win)) return 0;
568 memcpy( &win, wsaddr, sizeof(win) );
569 uaddr->in.sin_family = AF_INET;
570 uaddr->in.sin_port = win.sin_port;
571 memcpy( &uaddr->in.sin_addr, &win.sin_addr, sizeof(win.sin_addr) );
572 return sizeof(uaddr->in);
573 }
574
575 case WS_AF_INET6:
576 {
577 struct WS_sockaddr_in6 win = {0};
578
579 if (wsaddrlen < sizeof(win)) return 0;
580 memcpy( &win, wsaddr, sizeof(win) );
581 uaddr->in6.sin6_family = AF_INET6;
582 uaddr->in6.sin6_port = win.sin6_port;
583 uaddr->in6.sin6_flowinfo = win.sin6_flowinfo;
584 memcpy( &uaddr->in6.sin6_addr, &win.sin6_addr, sizeof(win.sin6_addr) );
585 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
586 uaddr->in6.sin6_scope_id = win.sin6_scope_id;
587 #endif
588 return sizeof(uaddr->in6);
589 }
590
591 #ifdef HAS_IPX
592 case WS_AF_IPX:
593 {
594 struct WS_sockaddr_ipx win = {0};
595
596 if (wsaddrlen < sizeof(win)) return 0;
597 memcpy( &win, wsaddr, sizeof(win) );
598 uaddr->ipx.sipx_family = AF_IPX;
599 memcpy( &uaddr->ipx.sipx_network, win.sa_netnum, sizeof(win.sa_netnum) );
600 memcpy( &uaddr->ipx.sipx_node, win.sa_nodenum, sizeof(win.sa_nodenum) );
601 uaddr->ipx.sipx_port = win.sa_socket;
602 return sizeof(uaddr->ipx);
603 }
604 #endif
605
606 #ifdef HAS_IRDA
607 case WS_AF_IRDA:
608 {
609 SOCKADDR_IRDA win = {0};
610 unsigned int lsap_sel;
611
612 if (wsaddrlen < sizeof(win)) return 0;
613 memcpy( &win, wsaddr, sizeof(win) );
614 uaddr->irda.sir_family = AF_IRDA;
615 if (sscanf( win.irdaServiceName, "LSAP-SEL%u", &lsap_sel ) == 1)
616 uaddr->irda.sir_lsap_sel = lsap_sel;
617 else
618 {
619 uaddr->irda.sir_lsap_sel = LSAP_ANY;
620 memcpy( uaddr->irda.sir_name, win.irdaServiceName, sizeof(win.irdaServiceName) );
621 }
622 memcpy( &uaddr->irda.sir_addr, win.irdaDeviceID, sizeof(win.irdaDeviceID) );
623 return sizeof(uaddr->irda);
624 }
625 #endif
626
627 case WS_AF_UNSPEC:
628 switch (wsaddrlen)
629 {
630 default: /* likely an ipv4 address */
631 case sizeof(struct WS_sockaddr_in):
632 return sizeof(uaddr->in);
633
634 #ifdef HAS_IPX
635 case sizeof(struct WS_sockaddr_ipx):
636 return sizeof(uaddr->ipx);
637 #endif
638
639 #ifdef HAS_IRDA
640 case sizeof(SOCKADDR_IRDA):
641 return sizeof(uaddr->irda);
642 #endif
643
644 case sizeof(struct WS_sockaddr_in6):
645 return sizeof(uaddr->in6);
646 }
647
648 default:
649 return 0;
650 }
651 }
652
653 static socklen_t get_unix_sockaddr_any( union unix_sockaddr *uaddr, int ws_family )
654 {
655 memset( uaddr, 0, sizeof(*uaddr) );
656 switch (ws_family)
657 {
658 case WS_AF_INET:
659 uaddr->in.sin_family = AF_INET;
660 return sizeof(uaddr->in);
661 case WS_AF_INET6:
662 uaddr->in6.sin6_family = AF_INET6;
663 return sizeof(uaddr->in6);
664 #ifdef HAS_IPX
665 case WS_AF_IPX:
666 uaddr->ipx.sipx_family = AF_IPX;
667 return sizeof(uaddr->ipx);
668 #endif
669 #ifdef HAS_IRDA
670 case WS_AF_IRDA:
671 uaddr->irda.sir_family = AF_IRDA;
672 return sizeof(uaddr->irda);
673 #endif
674 default:
675 return 0;
676 }
677 }
678
679 /* some events are generated at the same time but must be sent in a particular
680 * order (e.g. CONNECT must be sent before READ) */
681 static const enum afd_poll_bit event_bitorder[] =
682 {
683 AFD_POLL_BIT_CONNECT,
684 AFD_POLL_BIT_CONNECT_ERR,
685 AFD_POLL_BIT_ACCEPT,
686 AFD_POLL_BIT_OOB,
687 AFD_POLL_BIT_READ,
688 AFD_POLL_BIT_WRITE,
689 AFD_POLL_BIT_RESET,
690 AFD_POLL_BIT_HUP,
691 AFD_POLL_BIT_CLOSE,
692 };
693
694 typedef enum {
695 SOCK_SHUTDOWN_ERROR = -1,
696 SOCK_SHUTDOWN_EOF = 0,
697 SOCK_SHUTDOWN_POLLHUP = 1
698 } sock_shutdown_t;
699
700 static sock_shutdown_t sock_shutdown_type = SOCK_SHUTDOWN_ERROR;
701
702 static sock_shutdown_t sock_check_pollhup(void)
703 {
704 sock_shutdown_t ret = SOCK_SHUTDOWN_ERROR;
705 int fd[2], n;
706 struct pollfd pfd;
707 char dummy;
708
709 if ( socketpair( AF_UNIX, SOCK_STREAM, 0, fd ) ) return ret;
710 if ( shutdown( fd[0], 1 ) ) goto out;
711
712 pfd.fd = fd[1];
713 pfd.events = POLLIN;
714 pfd.revents = 0;
715
716 /* Solaris' poll() sometimes returns nothing if given a 0ms timeout here */
717 n = poll( &pfd, 1, 1 );
718 if ( n != 1 ) goto out; /* error or timeout */
719 if ( pfd.revents & POLLHUP )
720 ret = SOCK_SHUTDOWN_POLLHUP;
721 else if ( pfd.revents & POLLIN &&
722 read( fd[1], &dummy, 1 ) == 0 )
723 ret = SOCK_SHUTDOWN_EOF;
724
725 out:
726 close( fd[0] );
727 close( fd[1] );
728 return ret;
729 }
730
731 void sock_init(void)
732 {
733 sock_shutdown_type = sock_check_pollhup();
734
735 switch ( sock_shutdown_type )
736 {
737 case SOCK_SHUTDOWN_EOF:
738 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes EOF\n" );
739 break;
740 case SOCK_SHUTDOWN_POLLHUP:
741 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes POLLHUP\n" );
742 break;
743 default:
744 fprintf( stderr, "sock_init: ERROR in sock_check_pollhup()\n" );
745 sock_shutdown_type = SOCK_SHUTDOWN_EOF;
746 }
747 }
748
749 static void sock_reselect( struct sock *sock )
750 {
751 int ev = sock_get_poll_events( sock->fd );
752
753 if (debug_level)
754 fprintf(stderr,"sock_reselect(%p): new mask %x\n", sock, ev);
755
756 set_fd_events( sock->fd, ev );
757 }
758
759 static unsigned int afd_poll_flag_to_win32( unsigned int flags )
760 {
761 static const unsigned int map[] =
762 {
763 FD_READ, /* READ */
764 FD_OOB, /* OOB */
765 FD_WRITE, /* WRITE */
766 FD_CLOSE, /* HUP */
767 FD_CLOSE, /* RESET */
768 0, /* CLOSE */
769 FD_CONNECT, /* CONNECT */
770 FD_ACCEPT, /* ACCEPT */
771 FD_CONNECT, /* CONNECT_ERR */
772 };
773
774 unsigned int i, ret = 0;
775
776 for (i = 0; i < ARRAY_SIZE(map); ++i)
777 {
778 if (flags & (1 << i)) ret |= map[i];
779 }
780
781 return ret;
782 }
783
784 /* wake anybody waiting on the socket event or send the associated message */
785 static void sock_wake_up( struct sock *sock )
786 {
787 unsigned int events = sock->pending_events & sock->mask;
788 int i;
789
790 if (sock->event)
791 {
792 if (debug_level) fprintf(stderr, "signalling events %x ptr %p\n", events, sock->event );
793 if (events)
794 set_event( sock->event );
795 }
796 if (sock->window)
797 {
798 if (debug_level) fprintf(stderr, "signalling events %x win %08x\n", events, sock->window );
799 for (i = 0; i < ARRAY_SIZE(event_bitorder); i++)
800 {
801 enum afd_poll_bit event = event_bitorder[i];
802 if (events & (1 << event))
803 {
804 lparam_t lparam = afd_poll_flag_to_win32(1 << event) | (sock_get_error( sock->errors[event] ) << 16);
805 post_message( sock->window, sock->message, sock->wparam, lparam );
806 }
807 }
808 sock->pending_events = 0;
809 sock_reselect( sock );
810 }
811 }
812
813 static inline int sock_error( struct sock *sock )
814 {
815 int error = 0;
816 socklen_t len = sizeof(error);
817
818 getsockopt( get_unix_fd(sock->fd), SOL_SOCKET, SO_ERROR, (void *)&error, &len);
819
820 switch (sock->state)
821 {
822 case SOCK_UNCONNECTED:
823 break;
824
825 case SOCK_CONNECTING:
826 if (error)
827 sock->errors[AFD_POLL_BIT_CONNECT_ERR] = error;
828 else
829 error = sock->errors[AFD_POLL_BIT_CONNECT_ERR];
830 break;
831
832 case SOCK_LISTENING:
833 if (error)
834 sock->errors[AFD_POLL_BIT_ACCEPT] = error;
835 else
836 error = sock->errors[AFD_POLL_BIT_ACCEPT];
837 break;
838
839 case SOCK_CONNECTED:
840 case SOCK_CONNECTIONLESS:
841 if (error == ECONNRESET || error == EPIPE)
842 {
843 sock->reset = 1;
844 error = 0;
845 }
846 else if (error)
847 sock->errors[AFD_POLL_BIT_HUP] = error;
848 else
849 error = sock->errors[AFD_POLL_BIT_HUP];
850 break;
851 }
852
853 return error;
854 }
855
856 static void free_accept_req( void *private )
857 {
858 struct accept_req *req = private;
859 list_remove( &req->entry );
860 if (req->acceptsock)
861 {
862 req->acceptsock->accept_recv_req = NULL;
863 release_object( req->acceptsock );
864 }
865 release_object( req->async );
866 release_object( req->iosb );
867 release_object( req->sock );
868 free( req );
869 }
870
871 static void fill_accept_output( struct accept_req *req )
872 {
873 const data_size_t out_size = req->iosb->out_size;
874 struct async *async = req->async;
875 union unix_sockaddr unix_addr;
876 struct WS_sockaddr *win_addr;
877 unsigned int remote_len;
878 socklen_t unix_len;
879 int fd, size = 0;
880 char *out_data;
881 int win_len;
882
883 if (!(out_data = mem_alloc( out_size )))
884 {
885 async_terminate( async, get_error() );
886 return;
887 }
888
889 fd = get_unix_fd( req->acceptsock->fd );
890
891 if (req->recv_len && (size = recv( fd, out_data, req->recv_len, 0 )) < 0)
892 {
893 if (!req->accepted && errno == EWOULDBLOCK)
894 {
895 req->accepted = 1;
896 sock_reselect( req->acceptsock );
897 return;
898 }
899
900 async_terminate( async, sock_get_ntstatus( errno ) );
901 free( out_data );
902 return;
903 }
904
905 if (req->local_len)
906 {
907 if (req->local_len < sizeof(int))
908 {
909 async_terminate( async, STATUS_BUFFER_TOO_SMALL );
910 free( out_data );
911 return;
912 }
913
914 unix_len = sizeof(unix_addr);
915 win_addr = (struct WS_sockaddr *)(out_data + req->recv_len + sizeof(int));
916 if (getsockname( fd, &unix_addr.addr, &unix_len ) < 0 ||
917 (win_len = sockaddr_from_unix( &unix_addr, win_addr, req->local_len - sizeof(int) )) < 0)
918 {
919 async_terminate( async, sock_get_ntstatus( errno ) );
920 free( out_data );
921 return;
922 }
923 memcpy( out_data + req->recv_len, &win_len, sizeof(int) );
924 }
925
926 unix_len = sizeof(unix_addr);
927 win_addr = (struct WS_sockaddr *)(out_data + req->recv_len + req->local_len + sizeof(int));
928 remote_len = out_size - req->recv_len - req->local_len;
929 if (getpeername( fd, &unix_addr.addr, &unix_len ) < 0 ||
930 (win_len = sockaddr_from_unix( &unix_addr, win_addr, remote_len - sizeof(int) )) < 0)
931 {
932 async_terminate( async, sock_get_ntstatus( errno ) );
933 free( out_data );
934 return;
935 }
936 memcpy( out_data + req->recv_len + req->local_len, &win_len, sizeof(int) );
937
938 async_request_complete( req->async, STATUS_SUCCESS, size, out_size, out_data );
939 }
940
941 static void complete_async_accept( struct sock *sock, struct accept_req *req )
942 {
943 struct sock *acceptsock = req->acceptsock;
944 struct async *async = req->async;
945
946 if (debug_level) fprintf( stderr, "completing accept request for socket %p\n", sock );
947
948 if (acceptsock)
949 {
950 if (!accept_into_socket( sock, acceptsock ))
951 {
952 async_terminate( async, get_error() );
953 return;
954 }
955 fill_accept_output( req );
956 }
957 else
958 {
959 obj_handle_t handle;
960
961 if (!(acceptsock = accept_socket( sock )))
962 {
963 async_terminate( async, get_error() );
964 return;
965 }
966 handle = alloc_handle_no_access_check( async_get_thread( async )->process, &acceptsock->obj,
967 GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, OBJ_INHERIT );
968 acceptsock->wparam = handle;
969 sock_reselect( acceptsock );
970 release_object( acceptsock );
971 if (!handle)
972 {
973 async_terminate( async, get_error() );
974 return;
975 }
976
977 async_request_complete_alloc( req->async, STATUS_SUCCESS, 0, sizeof(handle), &handle );
978 }
979 }
980
981 static void complete_async_accept_recv( struct accept_req *req )
982 {
983 if (debug_level) fprintf( stderr, "completing accept recv request for socket %p\n", req->acceptsock );
984
985 assert( req->recv_len );
986
987 fill_accept_output( req );
988 }
989
990 static void free_connect_req( void *private )
991 {
992 struct connect_req *req = private;
993
994 req->sock->connect_req = NULL;
995 release_object( req->async );
996 release_object( req->iosb );
997 release_object( req->sock );
998 free( req );
999 }
1000
1001 static void complete_async_connect( struct sock *sock )
1002 {
1003 struct connect_req *req = sock->connect_req;
1004 const char *in_buffer;
1005 size_t len;
1006 int ret;
1007
1008 if (debug_level) fprintf( stderr, "completing connect request for socket %p\n", sock );
1009
1010 if (!req->send_len)
1011 {
1012 async_terminate( req->async, STATUS_SUCCESS );
1013 return;
1014 }
1015
1016 in_buffer = (const char *)req->iosb->in_data + sizeof(struct afd_connect_params) + req->addr_len;
1017 len = req->send_len - req->send_cursor;
1018
1019 ret = send( get_unix_fd( sock->fd ), in_buffer + req->send_cursor, len, 0 );
1020 if (ret < 0 && errno != EWOULDBLOCK)
1021 async_terminate( req->async, sock_get_ntstatus( errno ) );
1022 else if (ret == len)
1023 async_request_complete( req->async, STATUS_SUCCESS, req->send_len, 0, NULL );
1024 else
1025 req->send_cursor += ret;
1026 }
1027
1028 static void free_poll_req( void *private )
1029 {
1030 struct poll_req *req = private;
1031 unsigned int i;
1032
1033 if (req->timeout) remove_timeout_user( req->timeout );
1034
1035 for (i = 0; i < req->count; ++i)
1036 release_object( req->sockets[i].sock );
1037 release_object( req->async );
1038 release_object( req->iosb );
1039 list_remove( &req->entry );
1040 free( req );
1041 }
1042
1043 static int is_oobinline( struct sock *sock )
1044 {
1045 int oobinline;
1046 socklen_t len = sizeof(oobinline);
1047 return !getsockopt( get_unix_fd( sock->fd ), SOL_SOCKET, SO_OOBINLINE, (char *)&oobinline, &len ) && oobinline;
1048 }
1049
1050 static int get_poll_flags( struct sock *sock, int event )
1051 {
1052 int flags = 0;
1053
1054 /* A connection-mode socket which has never been connected does not return
1055 * write or hangup events, but Linux reports POLLOUT | POLLHUP. */
1056 if (sock->state == SOCK_UNCONNECTED)
1057 event &= ~(POLLOUT | POLLHUP);
1058
1059 if (event & POLLIN)
1060 {
1061 if (sock->state == SOCK_LISTENING)
1062 flags |= AFD_POLL_ACCEPT;
1063 else
1064 flags |= AFD_POLL_READ;
1065 }
1066 if (event & POLLPRI)
1067 flags |= is_oobinline( sock ) ? AFD_POLL_READ : AFD_POLL_OOB;
1068 if (event & POLLOUT)
1069 flags |= AFD_POLL_WRITE;
1070 if (sock->state == SOCK_CONNECTED)
1071 flags |= AFD_POLL_CONNECT;
1072 if (event & POLLHUP)
1073 flags |= AFD_POLL_HUP;
1074 if (event & POLLERR)
1075 flags |= AFD_POLL_CONNECT_ERR;
1076 if (sock->reset)
1077 flags |= AFD_POLL_RESET;
1078
1079 return flags;
1080 }
1081
1082 static void complete_async_poll( struct poll_req *req, unsigned int status )
1083 {
1084 unsigned int i, signaled_count = 0;
1085
1086 for (i = 0; i < req->count; ++i)
1087 {
1088 struct sock *sock = req->sockets[i].sock;
1089
1090 if (sock->main_poll == req)
1091 sock->main_poll = NULL;
1092 }
1093
1094 if (!status)
1095 {
1096 for (i = 0; i < req->count; ++i)
1097 {
1098 if (req->sockets[i].flags)
1099 ++signaled_count;
1100 }
1101 }
1102
1103 if (is_machine_64bit( async_get_thread( req->async )->process->machine ))
1104 {
1105 size_t output_size = offsetof( struct afd_poll_params_64, sockets[signaled_count] );
1106 struct afd_poll_params_64 *output;
1107
1108 if (!(output = mem_alloc( output_size )))
1109 {
1110 async_terminate( req->async, get_error() );
1111 return;
1112 }
1113 memset( output, 0, output_size );
1114 output->timeout = req->orig_timeout;
1115 output->exclusive = req->exclusive;
1116 for (i = 0; i < req->count; ++i)
1117 {
1118 if (!req->sockets[i].flags) continue;
1119 output->sockets[output->count].socket = req->sockets[i].handle;
1120 output->sockets[output->count].flags = req->sockets[i].flags;
1121 output->sockets[output->count].status = req->sockets[i].status;
1122 ++output->count;
1123 }
1124 assert( output->count == signaled_count );
1125
1126 async_request_complete( req->async, status, output_size, output_size, output );
1127 }
1128 else
1129 {
1130 size_t output_size = offsetof( struct afd_poll_params_32, sockets[signaled_count] );
1131 struct afd_poll_params_32 *output;
1132
1133 if (!(output = mem_alloc( output_size )))
1134 {
1135 async_terminate( req->async, get_error() );
1136 return;
1137 }
1138 memset( output, 0, output_size );
1139 output->timeout = req->orig_timeout;
1140 output->exclusive = req->exclusive;
1141 for (i = 0; i < req->count; ++i)
1142 {
1143 if (!req->sockets[i].flags) continue;
1144 output->sockets[output->count].socket = req->sockets[i].handle;
1145 output->sockets[output->count].flags = req->sockets[i].flags;
1146 output->sockets[output->count].status = req->sockets[i].status;
1147 ++output->count;
1148 }
1149 assert( output->count == signaled_count );
1150
1151 async_request_complete( req->async, status, output_size, output_size, output );
1152 }
1153 }
1154
1155 static void complete_async_polls( struct sock *sock, int event, int error )
1156 {
1157 int flags = get_poll_flags( sock, event );
1158 struct poll_req *req, *next;
1159
1160 LIST_FOR_EACH_ENTRY_SAFE( req, next, &poll_list, struct poll_req, entry )
1161 {
1162 unsigned int i;
1163
1164 if (req->iosb->status != STATUS_PENDING) continue;
1165
1166 for (i = 0; i < req->count; ++i)
1167 {
1168 if (req->sockets[i].sock != sock) continue;
1169 if (!(req->sockets[i].mask & flags)) continue;
1170
1171 if (debug_level)
1172 fprintf( stderr, "completing poll for socket %p, wanted %#x got %#x\n",
1173 sock, req->sockets[i].mask, flags );
1174
1175 req->sockets[i].flags = req->sockets[i].mask & flags;
1176 req->sockets[i].status = sock_get_ntstatus( error );
1177
1178 if (req->pending)
1179 {
1180 complete_async_poll( req, STATUS_SUCCESS );
1181 break;
1182 }
1183 }
1184 }
1185 }
1186
1187 static void async_poll_timeout( void *private )
1188 {
1189 struct poll_req *req = private;
1190
1191 req->timeout = NULL;
1192
1193 if (req->iosb->status != STATUS_PENDING) return;
1194
1195 complete_async_poll( req, STATUS_TIMEOUT );
1196 }
1197
1198 static int sock_dispatch_asyncs( struct sock *sock, int event, int error )
1199 {
1200 if (event & (POLLIN | POLLPRI))
1201 {
1202 struct accept_req *req;
1203
1204 LIST_FOR_EACH_ENTRY( req, &sock->accept_list, struct accept_req, entry )
1205 {
1206 if (req->iosb->status == STATUS_PENDING && !req->accepted)
1207 {
1208 complete_async_accept( sock, req );
1209 event &= ~POLLIN;
1210 break;
1211 }
1212 }
1213
1214 if (sock->accept_recv_req && sock->accept_recv_req->iosb->status == STATUS_PENDING)
1215 complete_async_accept_recv( sock->accept_recv_req );
1216 }
1217
1218 if ((event & POLLOUT) && sock->connect_req && sock->connect_req->iosb->status == STATUS_PENDING)
1219 complete_async_connect( sock );
1220
1221 if ((event & (POLLIN | POLLPRI)) && async_queued( &sock->read_q ))
1222 {
1223 if (async_waiting( &sock->read_q ))
1224 {
1225 if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
1226 async_wake_up( &sock->read_q, STATUS_ALERTED );
1227 }
1228 event &= ~(POLLIN | POLLPRI);
1229 }
1230
1231 if ((event & POLLOUT) && async_queued( &sock->write_q ))
1232 {
1233 if (async_waiting( &sock->write_q ))
1234 {
1235 if (debug_level) fprintf( stderr, "activating write queue for socket %p\n", sock );
1236 async_wake_up( &sock->write_q, STATUS_ALERTED );
1237 }
1238 event &= ~POLLOUT;
1239 }
1240
1241 if (event & (POLLERR | POLLHUP))
1242 {
1243 int status = sock_get_ntstatus( error );
1244 struct accept_req *req, *next;
1245
1246 async_wake_up( &sock->read_q, status );
1247 async_wake_up( &sock->write_q, status );
1248
1249 LIST_FOR_EACH_ENTRY_SAFE( req, next, &sock->accept_list, struct accept_req, entry )
1250 {
1251 if (req->iosb->status == STATUS_PENDING)
1252 async_terminate( req->async, status );
1253 }
1254
1255 if (sock->accept_recv_req && sock->accept_recv_req->iosb->status == STATUS_PENDING)
1256 async_terminate( sock->accept_recv_req->async, status );
1257
1258 if (sock->connect_req)
1259 async_terminate( sock->connect_req->async, status );
1260 }
1261
1262 if (sock->reset)
1263 {
1264 async_wake_up( &sock->read_q, STATUS_CONNECTION_RESET );
1265 async_wake_up( &sock->write_q, STATUS_CONNECTION_RESET );
1266
1267 if (sock->accept_recv_req && sock->accept_recv_req->iosb->status == STATUS_PENDING)
1268 async_terminate( sock->accept_recv_req->async, STATUS_CONNECTION_RESET );
1269 }
1270
1271 return event;
1272 }
1273
1274 static void post_socket_event( struct sock *sock, enum afd_poll_bit event_bit )
1275 {
1276 unsigned int event = (1 << event_bit);
1277
1278 if (!(sock->reported_events & event))
1279 {
1280 sock->pending_events |= event;
1281 sock->reported_events |= event;
1282 }
1283 }
1284
1285 static void sock_dispatch_events( struct sock *sock, enum connection_state prevstate, int event )
1286 {
1287 switch (prevstate)
1288 {
1289 case SOCK_UNCONNECTED:
1290 break;
1291
1292 case SOCK_CONNECTING:
1293 if (event & POLLOUT)
1294 post_socket_event( sock, AFD_POLL_BIT_CONNECT );
1295 if (event & (POLLERR | POLLHUP))
1296 post_socket_event( sock, AFD_POLL_BIT_CONNECT_ERR );
1297 break;
1298
1299 case SOCK_LISTENING:
1300 if (event & (POLLIN | POLLERR | POLLHUP))
1301 post_socket_event( sock, AFD_POLL_BIT_ACCEPT );
1302 break;
1303
1304 case SOCK_CONNECTED:
1305 case SOCK_CONNECTIONLESS:
1306 if (sock->reset)
1307 post_socket_event( sock, AFD_POLL_BIT_RESET );
1308
1309 if (event & POLLIN)
1310 post_socket_event( sock, AFD_POLL_BIT_READ );
1311
1312 if (event & POLLOUT)
1313 post_socket_event( sock, AFD_POLL_BIT_WRITE );
1314
1315 if (event & POLLPRI)
1316 post_socket_event( sock, AFD_POLL_BIT_OOB );
1317
1318 if (event & (POLLERR | POLLHUP))
1319 post_socket_event( sock, AFD_POLL_BIT_HUP );
1320 break;
1321 }
1322
1323 sock_wake_up( sock );
1324 }
1325
1326 static void sock_poll_event( struct fd *fd, int event )
1327 {
1328 struct sock *sock = get_fd_user( fd );
1329 int hangup_seen = 0;
1330 enum connection_state prevstate = sock->state;
1331 int error = 0;
1332
1333 assert( sock->obj.ops == &sock_ops );
1334 if (debug_level)
1335 fprintf(stderr, "socket %p select event: %x\n", sock, event);
1336
1337 if (event & (POLLERR | POLLHUP))
1338 error = sock_error( sock );
1339
1340 switch (sock->state)
1341 {
1342 case SOCK_UNCONNECTED:
1343 break;
1344
1345 case SOCK_CONNECTING:
1346 if (event & (POLLERR|POLLHUP))
1347 {
1348 sock->state = SOCK_UNCONNECTED;
1349 event &= ~POLLOUT;
1350 }
1351 else if (event & POLLOUT)
1352 {
1353 sock->state = SOCK_CONNECTED;
1354 sock->connect_time = current_time;
1355 sock->errors[AFD_POLL_BIT_CONNECT_ERR] = 0;
1356 }
1357 break;
1358
1359 case SOCK_LISTENING:
1360 break;
1361
1362 case SOCK_CONNECTED:
1363 case SOCK_CONNECTIONLESS:
1364 if (sock->reset)
1365 event &= ~(POLLIN | POLLERR | POLLHUP);
1366
1367 if (sock->type == WS_SOCK_STREAM && (event & POLLIN))
1368 {
1369 char dummy;
1370 int nr;
1371
1372 /* Linux 2.4 doesn't report POLLHUP if only one side of the socket
1373 * has been closed, so we need to check for it explicitly here */
1374 nr = recv( get_unix_fd( fd ), &dummy, 1, MSG_PEEK );
1375 if ( nr == 0 )
1376 {
1377 hangup_seen = 1;
1378 event &= ~POLLIN;
1379 }
1380 else if ( nr < 0 )
1381 {
1382 event &= ~POLLIN;
1383 /* EAGAIN can happen if an async recv() falls between the server's poll()
1384 call and the invocation of this routine */
1385 if (errno == ECONNRESET || errno == EPIPE)
1386 {
1387 sock->reset = 1;
1388 }
1389 else if (errno != EAGAIN)
1390 {
1391 error = errno;
1392 event |= POLLERR;
1393 sock->errors[AFD_POLL_BIT_HUP] = error;
1394 if ( debug_level )
1395 fprintf( stderr, "recv error on socket %p: %d\n", sock, errno );
1396 }
1397 }
1398 }
1399
1400 if (hangup_seen || (sock_shutdown_type == SOCK_SHUTDOWN_POLLHUP && (event & POLLHUP)))
1401 {
1402 sock->hangup = 1;
1403 }
1404 else if (event & (POLLHUP | POLLERR))
1405 {
1406 sock->aborted = 1;
1407
1408 if (debug_level)
1409 fprintf( stderr, "socket %p aborted by error %d, event %#x\n", sock, error, event );
1410 }
1411
1412 if (hangup_seen)
1413 event |= POLLHUP;
1414 break;
1415 }
1416
1417 event = sock_dispatch_asyncs( sock, event, error );
1418 sock_dispatch_events( sock, prevstate, event );
1419 complete_async_polls( sock, event, error );
1420
1421 sock_reselect( sock );
1422 }
1423
1424 static void sock_dump( struct object *obj, int verbose )
1425 {
1426 struct sock *sock = (struct sock *)obj;
1427 assert( obj->ops == &sock_ops );
1428 fprintf( stderr, "Socket fd=%p, state=%x, mask=%x, pending=%x, reported=%x\n",
1429 sock->fd, sock->state,
1430 sock->mask, sock->pending_events, sock->reported_events );
1431 }
1432
1433 static int poll_flags_from_afd( struct sock *sock, int flags )
1434 {
1435 int ev = 0;
1436
1437 /* A connection-mode socket which has never been connected does
1438 * not return write or hangup events, but Linux returns
1439 * POLLOUT | POLLHUP. */
1440 if (sock->state == SOCK_UNCONNECTED)
1441 return -1;
1442
1443 if (flags & (AFD_POLL_READ | AFD_POLL_ACCEPT))
1444 ev |= POLLIN;
1445 if ((flags & AFD_POLL_HUP) && sock->type == WS_SOCK_STREAM)
1446 ev |= POLLIN;
1447 if (flags & AFD_POLL_OOB)
1448 ev |= is_oobinline( sock ) ? POLLIN : POLLPRI;
1449 if (flags & AFD_POLL_WRITE)
1450 ev |= POLLOUT;
1451
1452 return ev;
1453 }
1454
1455 static int sock_get_poll_events( struct fd *fd )
1456 {
1457 struct sock *sock = get_fd_user( fd );
1458 unsigned int mask = sock->mask & ~sock->reported_events;
1459 struct poll_req *req;
1460 int ev = 0;
1461
1462 assert( sock->obj.ops == &sock_ops );
1463
1464 if (!sock->type) /* not initialized yet */
1465 return -1;
1466
1467 LIST_FOR_EACH_ENTRY( req, &poll_list, struct poll_req, entry )
1468 {
1469 unsigned int i;
1470
1471 for (i = 0; i < req->count; ++i)
1472 {
1473 if (req->sockets[i].sock != sock) continue;
1474
1475 ev |= poll_flags_from_afd( sock, req->sockets[i].mask );
1476 }
1477 }
1478
1479 switch (sock->state)
1480 {
1481 case SOCK_UNCONNECTED:
1482 /* A connection-mode Windows socket which has never been connected does
1483 * not return any events, but Linux returns POLLOUT | POLLHUP. Hence we
1484 * need to return -1 here, to prevent the socket from being polled on at
1485 * all. */
1486 return -1;
1487
1488 case SOCK_CONNECTING:
1489 return POLLOUT;
1490
1491 case SOCK_LISTENING:
1492 if (!list_empty( &sock->accept_list ) || (mask & AFD_POLL_ACCEPT))
1493 ev |= POLLIN;
1494 break;
1495
1496 case SOCK_CONNECTED:
1497 case SOCK_CONNECTIONLESS:
1498 if (sock->hangup && sock->wr_shutdown && !sock->wr_shutdown_pending)
1499 {
1500 /* Linux returns POLLHUP if a socket is both SHUT_RD and SHUT_WR, or
1501 * if both the socket and its peer are SHUT_WR.
1502 *
1503 * We don't use SHUT_RD, so we can only encounter this in the latter
1504 * case. In that case there can't be any pending read requests (they
1505 * would have already been completed with a length of zero), the
1506 * above condition ensures that we don't have any pending write
1507 * requests, and nothing that can change about the socket state that
1508 * would complete a pending poll request. */
1509 return -1;
1510 }
1511
1512 if (sock->aborted || sock->reset)
1513 return -1;
1514
1515 if (sock->accept_recv_req)
1516 {
1517 ev |= POLLIN;
1518 }
1519 else if (async_queued( &sock->read_q ))
1520 {
1521 /* Clear POLLIN and POLLPRI if we have an alerted async, even if
1522 * we're polling this socket for READ or OOB. We can't signal the
1523 * poll if the pending async will read all of the data [cf. the
1524 * matching logic in sock_dispatch_asyncs()], but we also don't
1525 * want to spin polling for POLLIN if we're not going to use it. */
1526 if (async_waiting( &sock->read_q ))
1527 ev |= POLLIN | POLLPRI;
1528 else
1529 ev &= ~(POLLIN | POLLPRI);
1530 }
1531 else
1532 {
1533 /* Don't ask for POLLIN if we got a hangup. We won't receive more
1534 * data anyway, but we will get POLLIN if SOCK_SHUTDOWN_EOF. */
1535 if (!sock->hangup)
1536 {
1537 if (mask & AFD_POLL_READ)
1538 ev |= POLLIN;
1539 if (mask & AFD_POLL_OOB)
1540 ev |= POLLPRI;
1541 }
1542
1543 /* We use POLLIN with 0 bytes recv() as hangup indication for stream sockets. */
1544 if (sock->state == SOCK_CONNECTED && (mask & AFD_POLL_HUP) && !(sock->reported_events & AFD_POLL_READ))
1545 ev |= POLLIN;
1546 }
1547
1548 if (async_queued( &sock->write_q ))
1549 {
1550 /* As with read asyncs above, clear POLLOUT if we have an alerted
1551 * async. */
1552 if (async_waiting( &sock->write_q ))
1553 ev |= POLLOUT;
1554 else
1555 ev &= ~POLLOUT;
1556 }
1557 else if (!sock->wr_shutdown && (mask & AFD_POLL_WRITE))
1558 {
1559 ev |= POLLOUT;
1560 }
1561
1562 break;
1563 }
1564
1565 return ev;
1566 }
1567
1568 static enum server_fd_type sock_get_fd_type( struct fd *fd )
1569 {
1570 return FD_TYPE_SOCKET;
1571 }
1572
1573 static void sock_cancel_async( struct fd *fd, struct async *async )
1574 {
1575 struct poll_req *req;
1576
1577 LIST_FOR_EACH_ENTRY( req, &poll_list, struct poll_req, entry )
1578 {
1579 unsigned int i;
1580
1581 if (req->async != async)
1582 continue;
1583
1584 for (i = 0; i < req->count; i++)
1585 {
1586 struct sock *sock = req->sockets[i].sock;
1587
1588 if (sock->main_poll == req)
1589 sock->main_poll = NULL;
1590 }
1591 }
1592
1593 async_terminate( async, STATUS_CANCELLED );
1594 }
1595
1596 static void sock_reselect_async( struct fd *fd, struct async_queue *queue )
1597 {
1598 struct sock *sock = get_fd_user( fd );
1599
1600 if (sock->wr_shutdown_pending && list_empty( &sock->write_q.queue ))
1601 {
1602 shutdown( get_unix_fd( sock->fd ), SHUT_WR );
1603 sock->wr_shutdown_pending = 0;
1604 }
1605
1606 /* Don't reselect the ifchange queue; we always ask for POLLIN.
1607 * Don't reselect an uninitialized socket; we can't call set_fd_events() on
1608 * a pseudo-fd. */
1609 if (queue != &sock->ifchange_q && sock->type)
1610 sock_reselect( sock );
1611 }
1612
1613 static struct fd *sock_get_fd( struct object *obj )
1614 {
1615 struct sock *sock = (struct sock *)obj;
1616 return (struct fd *)grab_object( sock->fd );
1617 }
1618
1619 static int sock_close_handle( struct object *obj, struct process *process, obj_handle_t handle )
1620 {
1621 struct sock *sock = (struct sock *)obj;
1622
1623 if (sock->obj.handle_count == 1) /* last handle */
1624 {
1625 struct accept_req *accept_req, *accept_next;
1626 struct poll_req *poll_req, *poll_next;
1627
1628 if (sock->accept_recv_req)
1629 async_terminate( sock->accept_recv_req->async, STATUS_CANCELLED );
1630
1631 LIST_FOR_EACH_ENTRY_SAFE( accept_req, accept_next, &sock->accept_list, struct accept_req, entry )
1632 async_terminate( accept_req->async, STATUS_CANCELLED );
1633
1634 if (sock->connect_req)
1635 async_terminate( sock->connect_req->async, STATUS_CANCELLED );
1636
1637 LIST_FOR_EACH_ENTRY_SAFE( poll_req, poll_next, &poll_list, struct poll_req, entry )
1638 {
1639 struct iosb *iosb = poll_req->iosb;
1640 BOOL signaled = FALSE;
1641 unsigned int i;
1642
1643 if (iosb->status != STATUS_PENDING) continue;
1644
1645 for (i = 0; i < poll_req->count; ++i)
1646 {
1647 if (poll_req->sockets[i].sock == sock)
1648 {
1649 signaled = TRUE;
1650 poll_req->sockets[i].flags = AFD_POLL_CLOSE;
1651 poll_req->sockets[i].status = 0;
1652 }
1653 }
1654
1655 if (signaled) complete_async_poll( poll_req, STATUS_SUCCESS );
1656 }
1657 }
1658 return async_close_obj_handle( obj, process, handle );
1659 }
1660
1661 static void sock_destroy( struct object *obj )
1662 {
1663 struct sock *sock = (struct sock *)obj;
1664 unsigned int i;
1665
1666 assert( obj->ops == &sock_ops );
1667
1668 /* FIXME: special socket shutdown stuff? */
1669
1670 for (i = 0; i < 2; ++i)
1671 {
1672 if (sock->bound_addr[i] && --sock->bound_addr[i]->reuse_count <= 0)
1673 {
1674 rb_remove( &bound_addresses_tree, &sock->bound_addr[i]->entry );
1675 free( sock->bound_addr[i] );
1676 }
1677 }
1678
1679 if ( sock->deferred )
1680 release_object( sock->deferred );
1681
1682 async_wake_up( &sock->ifchange_q, STATUS_CANCELLED );
1683 sock_release_ifchange( sock );
1684 free_async_queue( &sock->read_q );
1685 free_async_queue( &sock->write_q );
1686 free_async_queue( &sock->ifchange_q );
1687 free_async_queue( &sock->accept_q );
1688 free_async_queue( &sock->connect_q );
1689 free_async_queue( &sock->poll_q );
1690 if (sock->event) release_object( sock->event );
1691 if (sock->fd) release_object( sock->fd );
1692 }
1693
1694 static struct sock *create_socket(void)
1695 {
1696 struct sock *sock;
1697
1698 if (!(sock = alloc_object( &sock_ops ))) return NULL;
1699 sock->fd = NULL;
1700 sock->state = SOCK_UNCONNECTED;
1701 sock->mask = 0;
1702 sock->pending_events = 0;
1703 sock->reported_events = 0;
1704 sock->proto = 0;
1705 sock->type = 0;
1706 sock->family = 0;
1707 sock->event = NULL;
1708 sock->window = 0;
1709 sock->message = 0;
1710 sock->wparam = 0;
1711 sock->connect_time = 0;
1712 sock->deferred = NULL;
1713 sock->ifchange_obj = NULL;
1714 sock->accept_recv_req = NULL;
1715 sock->connect_req = NULL;
1716 sock->main_poll = NULL;
1717 memset( &sock->addr, 0, sizeof(sock->addr) );
1718 sock->addr_len = 0;
1719 sock->rd_shutdown = 0;
1720 sock->wr_shutdown = 0;
1721 sock->wr_shutdown_pending = 0;
1722 sock->hangup = 0;
1723 sock->aborted = 0;
1724 sock->nonblocking = 0;
1725 sock->bound = 0;
1726 sock->reset = 0;
1727 sock->reuseaddr = 0;
1728 sock->exclusiveaddruse = 0;
1729 sock->rcvbuf = 0;
1730 sock->sndbuf = 0;
1731 sock->rcvtimeo = 0;
1732 sock->sndtimeo = 0;
1733 sock->icmp_fixup_data_len = 0;
1734 sock->bound_addr[0] = sock->bound_addr[1] = NULL;
1735 init_async_queue( &sock->read_q );
1736 init_async_queue( &sock->write_q );
1737 init_async_queue( &sock->ifchange_q );
1738 init_async_queue( &sock->accept_q );
1739 init_async_queue( &sock->connect_q );
1740 init_async_queue( &sock->poll_q );
1741 memset( sock->errors, 0, sizeof(sock->errors) );
1742 list_init( &sock->accept_list );
1743 return sock;
1744 }
1745
1746 static int get_unix_family( int family )
1747 {
1748 switch (family)
1749 {
1750 case WS_AF_INET: return AF_INET;
1751 case WS_AF_INET6: return AF_INET6;
1752 #ifdef HAS_IPX
1753 case WS_AF_IPX: return AF_IPX;
1754 #endif
1755 #ifdef AF_IRDA
1756 case WS_AF_IRDA: return AF_IRDA;
1757 #endif
1758 case WS_AF_UNSPEC: return AF_UNSPEC;
1759 default: return -1;
1760 }
1761 }
1762
1763 static int get_unix_type( int type )
1764 {
1765 switch (type)
1766 {
1767 case WS_SOCK_DGRAM: return SOCK_DGRAM;
1768 case WS_SOCK_RAW: return SOCK_RAW;
1769 case WS_SOCK_STREAM: return SOCK_STREAM;
1770 default: return -1;
1771 }
1772 }
1773
1774 static int get_unix_protocol( int protocol )
1775 {
1776 if (protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
1777 return protocol;
1778
1779 switch (protocol)
1780 {
1781 case WS_IPPROTO_ICMP: return IPPROTO_ICMP;
1782 case WS_IPPROTO_IGMP: return IPPROTO_IGMP;
1783 case WS_IPPROTO_IP: return IPPROTO_IP;
1784 case WS_IPPROTO_IPV4: return IPPROTO_IPIP;
1785 case WS_IPPROTO_IPV6: return IPPROTO_IPV6;
1786 case WS_IPPROTO_RAW: return IPPROTO_RAW;
1787 case WS_IPPROTO_TCP: return IPPROTO_TCP;
1788 case WS_IPPROTO_UDP: return IPPROTO_UDP;
1789 default: return -1;
1790 }
1791 }
1792
1793 static void set_dont_fragment( int fd, int level, int value )
1794 {
1795 int optname;
1796
1797 if (level == IPPROTO_IP)
1798 {
1799 #ifdef IP_DONTFRAG
1800 optname = IP_DONTFRAG;
1801 #elif defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO) && defined(IP_PMTUDISC_DONT)
1802 optname = IP_MTU_DISCOVER;
1803 value = value ? IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
1804 #else
1805 return;
1806 #endif
1807 }
1808 else
1809 {
1810 #ifdef IPV6_DONTFRAG
1811 optname = IPV6_DONTFRAG;
1812 #elif defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO) && defined(IPV6_PMTUDISC_DONT)
1813 optname = IPV6_MTU_DISCOVER;
1814 value = value ? IPV6_PMTUDISC_DO : IPV6_PMTUDISC_DONT;
1815 #else
1816 return;
1817 #endif
1818 }
1819
1820 setsockopt( fd, level, optname, &value, sizeof(value) );
1821 }
1822
1823 static int init_socket( struct sock *sock, int family, int type, int protocol )
1824 {
1825 unsigned int options = 0;
1826 int sockfd, unix_type, unix_family, unix_protocol, value;
1827 socklen_t len;
1828
1829 unix_family = get_unix_family( family );
1830 unix_type = get_unix_type( type );
1831 unix_protocol = get_unix_protocol( protocol );
1832
1833 if (unix_protocol < 0)
1834 {
1835 if (type && unix_type < 0)
1836 set_win32_error( WSAESOCKTNOSUPPORT );
1837 else
1838 set_win32_error( WSAEPROTONOSUPPORT );
1839 return -1;
1840 }
1841 if (unix_family < 0)
1842 {
1843 if (family >= 0 && unix_type < 0)
1844 set_win32_error( WSAESOCKTNOSUPPORT );
1845 else
1846 set_win32_error( WSAEAFNOSUPPORT );
1847 return -1;
1848 }
1849
1850 sockfd = socket( unix_family, unix_type, unix_protocol );
1851
1852 #ifdef linux
1853 if (sockfd == -1 && errno == EPERM && unix_family == AF_INET
1854 && unix_type == SOCK_RAW && unix_protocol == IPPROTO_ICMP)
1855 {
1856 sockfd = socket( unix_family, SOCK_DGRAM, unix_protocol );
1857 if (sockfd != -1)
1858 {
1859 const int val = 1;
1860
1861 setsockopt( sockfd, IPPROTO_IP, IP_RECVTTL, (const char *)&val, sizeof(val) );
1862 setsockopt( sockfd, IPPROTO_IP, IP_RECVTOS, (const char *)&val, sizeof(val) );
1863 setsockopt( sockfd, IPPROTO_IP, IP_PKTINFO, (const char *)&val, sizeof(val) );
1864 }
1865 }
1866 #endif
1867
1868 if (sockfd == -1)
1869 {
1870 if (errno == EINVAL) set_win32_error( WSAESOCKTNOSUPPORT );
1871 else set_win32_error( sock_get_error( errno ));
1872 return -1;
1873 }
1874 fcntl(sockfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
1875
1876 if (family == WS_AF_IPX && protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
1877 {
1878 #ifdef HAS_IPX
1879 int ipx_type = protocol - WS_NSPROTO_IPX;
1880
1881 #ifdef SOL_IPX
1882 setsockopt( sockfd, SOL_IPX, IPX_TYPE, &ipx_type, sizeof(ipx_type) );
1883 #else
1884 struct ipx val;
1885 /* Should we retrieve val using a getsockopt call and then
1886 * set the modified one? */
1887 val.ipx_pt = ipx_type;
1888 setsockopt( sockfd, 0, SO_DEFAULT_HEADERS, &val, sizeof(val) );
1889 #endif
1890 #endif
1891 }
1892
1893 if (unix_family == AF_INET || unix_family == AF_INET6)
1894 {
1895 /* ensure IP_DONTFRAGMENT is disabled for SOCK_DGRAM and SOCK_RAW, enabled for SOCK_STREAM */
1896 if (unix_type == SOCK_DGRAM || unix_type == SOCK_RAW) /* in Linux the global default can be enabled */
1897 set_dont_fragment( sockfd, unix_family == AF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP, FALSE );
1898 else if (unix_type == SOCK_STREAM)
1899 set_dont_fragment( sockfd, unix_family == AF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP, TRUE );
1900 }
1901
1902 #ifdef IPV6_V6ONLY
1903 if (unix_family == AF_INET6)
1904 {
1905 static const int enable = 1;
1906 setsockopt( sockfd, IPPROTO_IPV6, IPV6_V6ONLY, &enable, sizeof(enable) );
1907 }
1908 #endif
1909
1910 len = sizeof(value);
1911 if (!getsockopt( sockfd, SOL_SOCKET, SO_RCVBUF, &value, &len ))
1912 sock->rcvbuf = value;
1913
1914 len = sizeof(value);
1915 if (!getsockopt( sockfd, SOL_SOCKET, SO_SNDBUF, &value, &len ))
1916 sock->sndbuf = value;
1917
1918 sock->state = (type == WS_SOCK_STREAM ? SOCK_UNCONNECTED : SOCK_CONNECTIONLESS);
1919 sock->proto = protocol;
1920 sock->type = type;
1921 sock->family = family;
1922
1923 if (is_tcp_socket( sock ))
1924 {
1925 value = 1;
1926 setsockopt( sockfd, SOL_SOCKET, SO_REUSEADDR, &value, sizeof(value) );
1927 #ifdef TCP_SYNCNT
1928 value = 4;
1929 setsockopt( sockfd, IPPROTO_TCP, TCP_SYNCNT, &value, sizeof(value) );
1930 #endif
1931 }
1932
1933 if (sock->fd)
1934 {
1935 options = get_fd_options( sock->fd );
1936 release_object( sock->fd );
1937 }
1938
1939 if (!(sock->fd = create_anonymous_fd( &sock_fd_ops, sockfd, &sock->obj, options )))
1940 {
1941 return -1;
1942 }
1943
1944 /* We can't immediately allow caching for a connection-mode socket, since it
1945 * might be accepted into (changing the underlying fd object.) */
1946 if (sock->type != WS_SOCK_STREAM) allow_fd_caching( sock->fd );
1947
1948 return 0;
1949 }
1950
1951 /* accepts a socket and inits it */
1952 static int accept_new_fd( struct sock *sock )
1953 {
1954
1955 /* Try to accept(2). We can't be safe that this an already connected socket
1956 * or that accept() is allowed on it. In those cases we will get -1/errno
1957 * return.
1958 */
1959 struct sockaddr saddr;
1960 socklen_t slen = sizeof(saddr);
1961 int acceptfd = accept( get_unix_fd(sock->fd), &saddr, &slen );
1962 if (acceptfd != -1)
1963 fcntl( acceptfd, F_SETFL, O_NONBLOCK );
1964 else
1965 set_error( sock_get_ntstatus( errno ));
1966 return acceptfd;
1967 }
1968
1969 /* accept a socket (creates a new fd) */
1970 static struct sock *accept_socket( struct sock *sock )
1971 {
1972 struct sock *acceptsock;
1973 int acceptfd;
1974
1975 if (get_unix_fd( sock->fd ) == -1) return NULL;
1976
1977 if ( sock->deferred )
1978 {
1979 acceptsock = sock->deferred;
1980 sock->deferred = NULL;
1981 }
1982 else
1983 {
1984 union unix_sockaddr unix_addr;
1985 socklen_t unix_len;
1986
1987 if ((acceptfd = accept_new_fd( sock )) == -1) return NULL;
1988 if (!(acceptsock = create_socket()))
1989 {
1990 close( acceptfd );
1991 return NULL;
1992 }
1993
1994 /* newly created socket gets the same properties of the listening socket */
1995 acceptsock->state = SOCK_CONNECTED;
1996 acceptsock->bound = 1;
1997 acceptsock->nonblocking = sock->nonblocking;
1998 acceptsock->mask = sock->mask;
1999 acceptsock->proto = sock->proto;
2000 acceptsock->type = sock->type;
2001 acceptsock->family = sock->family;
2002 acceptsock->window = sock->window;
2003 acceptsock->message = sock->message;
2004 acceptsock->reuseaddr = sock->reuseaddr;
2005 acceptsock->exclusiveaddruse = sock->exclusiveaddruse;
2006 acceptsock->sndbuf = sock->sndbuf;
2007 acceptsock->rcvbuf = sock->rcvbuf;
2008 acceptsock->sndtimeo = sock->sndtimeo;
2009 acceptsock->rcvtimeo = sock->rcvtimeo;
2010 acceptsock->connect_time = current_time;
2011
2012 if (sock->event) acceptsock->event = (struct event *)grab_object( sock->event );
2013 if (!(acceptsock->fd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
2014 get_fd_options( sock->fd ) )))
2015 {
2016 release_object( acceptsock );
2017 return NULL;
2018 }
2019 unix_len = sizeof(unix_addr);
2020 if (!getsockname( acceptfd, &unix_addr.addr, &unix_len ))
2021 acceptsock->addr_len = sockaddr_from_unix( &unix_addr, &acceptsock->addr.addr, sizeof(acceptsock->addr) );
2022 }
2023 clear_error();
2024 sock->pending_events &= ~AFD_POLL_ACCEPT;
2025 sock->reported_events &= ~AFD_POLL_ACCEPT;
2026 sock_reselect( sock );
2027 return acceptsock;
2028 }
2029
2030 static int accept_into_socket( struct sock *sock, struct sock *acceptsock )
2031 {
2032 union unix_sockaddr unix_addr;
2033 socklen_t unix_len;
2034 int acceptfd;
2035 struct fd *newfd;
2036
2037 if (get_unix_fd( sock->fd ) == -1) return FALSE;
2038
2039 if ( sock->deferred )
2040 {
2041 newfd = dup_fd_object( sock->deferred->fd, 0, 0,
2042 get_fd_options( acceptsock->fd ) );
2043 if ( !newfd )
2044 return FALSE;
2045
2046 set_fd_user( newfd, &sock_fd_ops, &acceptsock->obj );
2047
2048 release_object( sock->deferred );
2049 sock->deferred = NULL;
2050 }
2051 else
2052 {
2053 if ((acceptfd = accept_new_fd( sock )) == -1)
2054 return FALSE;
2055
2056 if (!(newfd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
2057 get_fd_options( acceptsock->fd ) )))
2058 return FALSE;
2059 }
2060
2061 acceptsock->state = SOCK_CONNECTED;
2062 acceptsock->bound = 1;
2063 acceptsock->pending_events = 0;
2064 acceptsock->reported_events = 0;
2065 acceptsock->proto = sock->proto;
2066 acceptsock->type = sock->type;
2067 acceptsock->family = sock->family;
2068 acceptsock->wparam = 0;
2069 acceptsock->deferred = NULL;
2070 acceptsock->connect_time = current_time;
2071 fd_copy_completion( acceptsock->fd, newfd );
2072 release_object( acceptsock->fd );
2073 acceptsock->fd = newfd;
2074
2075 unix_len = sizeof(unix_addr);
2076 if (!getsockname( get_unix_fd( newfd ), &unix_addr.addr, &unix_len ))
2077 acceptsock->addr_len = sockaddr_from_unix( &unix_addr, &acceptsock->addr.addr, sizeof(acceptsock->addr) );
2078
2079 clear_error();
2080 sock->pending_events &= ~AFD_POLL_ACCEPT;
2081 sock->reported_events &= ~AFD_POLL_ACCEPT;
2082 sock_reselect( sock );
2083
2084 return TRUE;
2085 }
2086
2087 #ifdef IP_BOUND_IF
2088
2089 static int bind_to_iface_name( int fd, in_addr_t bind_addr, const char *name )
2090 {
2091 static const int enable = 1;
2092 unsigned int index;
2093
2094 if (!(index = if_nametoindex( name )))
2095 return -1;
2096
2097 if (setsockopt( fd, IPPROTO_IP, IP_BOUND_IF, &index, sizeof(index) ))
2098 return -1;
2099
2100 return setsockopt( fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable) );
2101 }
2102
2103 #elif defined(IP_UNICAST_IF) && defined(SO_ATTACH_FILTER) && defined(SO_BINDTODEVICE)
2104
2105 struct interface_filter
2106 {
2107 struct sock_filter iface_memaddr;
2108 struct sock_filter iface_rule;
2109 struct sock_filter ip_memaddr;
2110 struct sock_filter ip_rule;
2111 struct sock_filter return_keep;
2112 struct sock_filter return_dump;
2113 };
2114 # define FILTER_JUMP_DUMP(here) (u_char)(offsetof(struct interface_filter, return_dump) \
2115 -offsetof(struct interface_filter, here)-sizeof(struct sock_filter)) \
2116 /sizeof(struct sock_filter)
2117 # define FILTER_JUMP_KEEP(here) (u_char)(offsetof(struct interface_filter, return_keep) \
2118 -offsetof(struct interface_filter, here)-sizeof(struct sock_filter)) \
2119 /sizeof(struct sock_filter)
2120 # define FILTER_JUMP_NEXT() (u_char)(0)
2121 # define SKF_NET_DESTIP 16 /* offset in the network header to the destination IP */
2122 static struct interface_filter generic_interface_filter =
2123 {
2124 /* This filter rule allows incoming packets on the specified interface, which works for all
2125 * remotely generated packets and for locally generated broadcast packets. */
2126 BPF_STMT(BPF_LD+BPF_W+BPF_ABS, SKF_AD_OFF+SKF_AD_IFINDEX),
2127 BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0xdeadbeef, FILTER_JUMP_KEEP(iface_rule), FILTER_JUMP_NEXT()),
2128 /* This rule allows locally generated packets targeted at the specific IP address of the chosen
2129 * adapter (local packets not destined for the broadcast address do not have IFINDEX set) */
2130 BPF_STMT(BPF_LD+BPF_W+BPF_ABS, SKF_NET_OFF+SKF_NET_DESTIP),
2131 BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0xdeadbeef, FILTER_JUMP_KEEP(ip_rule), FILTER_JUMP_DUMP(ip_rule)),
2132 BPF_STMT(BPF_RET+BPF_K, (u_int)-1), /* keep packet */
2133 BPF_STMT(BPF_RET+BPF_K, 0) /* dump packet */
2134 };
2135
2136 static int bind_to_iface_name( int fd, in_addr_t bind_addr, const char *name )
2137 {
2138 struct interface_filter specific_interface_filter;
2139 struct sock_fprog filter_prog;
2140 static const int enable = 1;
2141 unsigned int index;
2142 in_addr_t ifindex;
2143
2144 if (!setsockopt( fd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen( name ) + 1 ))
2145 return 0;
2146
2147 /* SO_BINDTODEVICE requires NET_CAP_RAW until Linux 5.7. */
2148 if (debug_level)
2149 fprintf( stderr, "setsockopt SO_BINDTODEVICE fd %d, name %s failed: %s, falling back to SO_REUSE_ADDR\n",
2150 fd, name, strerror( errno ));
2151
2152 if (!(index = if_nametoindex( name )))
2153 return -1;
2154
2155 ifindex = htonl( index );
2156 if (setsockopt( fd, IPPROTO_IP, IP_UNICAST_IF, &ifindex, sizeof(ifindex) ) < 0)
2157 return -1;
2158
2159 specific_interface_filter = generic_interface_filter;
2160 specific_interface_filter.iface_rule.k = index;
2161 specific_interface_filter.ip_rule.k = htonl( bind_addr );
2162 filter_prog.len = sizeof(generic_interface_filter) / sizeof(struct sock_filter);
2163 filter_prog.filter = (struct sock_filter *)&specific_interface_filter;
2164 if (setsockopt( fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter_prog, sizeof(filter_prog) ))
2165 return -1;
2166
2167 return setsockopt( fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable) );
2168 }
2169
2170 #else
2171
2172 static int bind_to_iface_name( int fd, in_addr_t bind_addr, const char *name )
2173 {
2174 errno = EOPNOTSUPP;
2175 return -1;
2176 }
2177
2178 #endif /* LINUX_BOUND_IF */
2179
2180 /* Take bind() calls on any name corresponding to a local network adapter and
2181 * restrict the given socket to operating only on the specified interface. This
2182 * restriction consists of two components:
2183 * 1) An outgoing packet restriction suggesting the egress interface for all
2184 * packets.
2185 * 2) An incoming packet restriction dropping packets not meant for the
2186 * interface.
2187 * If the function succeeds in placing these restrictions, then the name for the
2188 * bind() may safely be changed to INADDR_ANY, permitting the transmission and
2189 * receipt of broadcast packets on the socket. This behavior is only relevant to
2190 * UDP sockets and is needed for applications that expect to be able to receive
2191 * broadcast packets on a socket that is bound to a specific network interface.
2192 */
2193 static int bind_to_interface( struct sock *sock, const struct sockaddr_in *addr )
2194 {
2195 in_addr_t bind_addr = addr->sin_addr.s_addr;
2196 struct ifaddrs *ifaddrs, *ifaddr;
2197 int fd = get_unix_fd( sock->fd );
2198 int err = 0;
2199
2200 if (bind_addr == htonl( INADDR_ANY ) || bind_addr == htonl( INADDR_LOOPBACK ))
2201 return 0;
2202 if (sock->type != WS_SOCK_DGRAM)
2203 return 0;
2204
2205 if (getifaddrs( &ifaddrs ) < 0) return 0;
2206
2207 for (ifaddr = ifaddrs; ifaddr != NULL; ifaddr = ifaddr->ifa_next)
2208 {
2209 if (ifaddr->ifa_addr && ifaddr->ifa_addr->sa_family == AF_INET
2210 && ((struct sockaddr_in *)ifaddr->ifa_addr)->sin_addr.s_addr == bind_addr)
2211 {
2212 if ((err = bind_to_iface_name( fd, bind_addr, ifaddr->ifa_name )) < 0)
2213 {
2214 if (debug_level)
2215 fprintf( stderr, "failed to bind to interface: %s\n", strerror( errno ) );
2216 }
2217 break;
2218 }
2219 }
2220 freeifaddrs( ifaddrs );
2221 return !err;
2222 }
2223
2224 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
2225 static unsigned int get_ipv6_interface_index( const struct in6_addr *addr )
2226 {
2227 struct ifaddrs *ifaddrs, *ifaddr;
2228
2229 if (getifaddrs( &ifaddrs ) < 0) return 0;
2230
2231 for (ifaddr = ifaddrs; ifaddr != NULL; ifaddr = ifaddr->ifa_next)
2232 {
2233 if (ifaddr->ifa_addr && ifaddr->ifa_addr->sa_family == AF_INET6
2234 && !memcmp( &((struct sockaddr_in6 *)ifaddr->ifa_addr)->sin6_addr, addr, sizeof(*addr) ))
2235 {
2236 unsigned int index = if_nametoindex( ifaddr->ifa_name );
2237
2238 if (!index)
2239 {
2240 if (debug_level)
2241 fprintf( stderr, "Unable to look up interface index for %s: %s\n",
2242 ifaddr->ifa_name, strerror( errno ) );
2243 continue;
2244 }
2245
2246 freeifaddrs( ifaddrs );
2247 return index;
2248 }
2249 }
2250
2251 freeifaddrs( ifaddrs );
2252 return 0;
2253 }
2254 #endif
2255
2256 /* return an errno value mapped to a WSA error */
2257 static unsigned int sock_get_error( int err )
2258 {
2259 switch (err)
2260 {
2261 case EINTR: return WSAEINTR;
2262 case EBADF: return WSAEBADF;
2263 case EPERM:
2264 case EACCES: return WSAEACCES;
2265 case EFAULT: return WSAEFAULT;
2266 case EINVAL: return WSAEINVAL;
2267 case EMFILE: return WSAEMFILE;
2268 case EINPROGRESS:
2269 case EWOULDBLOCK: return WSAEWOULDBLOCK;
2270 case EALREADY: return WSAEALREADY;
2271 case ENOTSOCK: return WSAENOTSOCK;
2272 case EDESTADDRREQ: return WSAEDESTADDRREQ;
2273 case EMSGSIZE: return WSAEMSGSIZE;
2274 case EPROTOTYPE: return WSAEPROTOTYPE;
2275 case ENOPROTOOPT: return WSAENOPROTOOPT;
2276 case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
2277 case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
2278 case EOPNOTSUPP: return WSAEOPNOTSUPP;
2279 case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
2280 case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
2281 case EADDRINUSE: return WSAEADDRINUSE;
2282 case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
2283 case ENETDOWN: return WSAENETDOWN;
2284 case ENETUNREACH: return WSAENETUNREACH;
2285 case ENETRESET: return WSAENETRESET;
2286 case ECONNABORTED: return WSAECONNABORTED;
2287 case EPIPE:
2288 case ECONNRESET: return WSAECONNRESET;
2289 case ENOBUFS: return WSAENOBUFS;
2290 case EISCONN: return WSAEISCONN;
2291 case ENOTCONN: return WSAENOTCONN;
2292 case ESHUTDOWN: return WSAESHUTDOWN;
2293 case ETOOMANYREFS: return WSAETOOMANYREFS;
2294 case ETIMEDOUT: return WSAETIMEDOUT;
2295 case ECONNREFUSED: return WSAECONNREFUSED;
2296 case ELOOP: return WSAELOOP;
2297 case ENAMETOOLONG: return WSAENAMETOOLONG;
2298 case EHOSTDOWN: return WSAEHOSTDOWN;
2299 case EHOSTUNREACH: return WSAEHOSTUNREACH;
2300 case ENOTEMPTY: return WSAENOTEMPTY;
2301 #ifdef EPROCLIM
2302 case EPROCLIM: return WSAEPROCLIM;
2303 #endif
2304 #ifdef EUSERS
2305 case EUSERS: return WSAEUSERS;
2306 #endif
2307 #ifdef EDQUOT
2308 case EDQUOT: return WSAEDQUOT;
2309 #endif
2310 #ifdef ESTALE
2311 case ESTALE: return WSAESTALE;
2312 #endif
2313 #ifdef EREMOTE
2314 case EREMOTE: return WSAEREMOTE;
2315 #endif
2316
2317 case 0: return 0;
2318 default:
2319 errno = err;
2320 perror("wineserver: sock_get_error() can't map error");
2321 return WSAEFAULT;
2322 }
2323 }
2324
2325 static int sock_get_ntstatus( int err )
2326 {
2327 switch ( err )
2328 {
2329 case EBADF: return STATUS_INVALID_HANDLE;
2330 case EBUSY: return STATUS_DEVICE_BUSY;
2331 case EPERM:
2332 case EACCES: return STATUS_ACCESS_DENIED;
2333 case EFAULT: return STATUS_ACCESS_VIOLATION;
2334 case EINVAL: return STATUS_INVALID_PARAMETER;
2335 case ENFILE:
2336 case EMFILE: return STATUS_TOO_MANY_OPENED_FILES;
2337 case EINPROGRESS:
2338 case EWOULDBLOCK: return STATUS_DEVICE_NOT_READY;
2339 case EALREADY: return STATUS_NETWORK_BUSY;
2340 case ENOTSOCK: return STATUS_OBJECT_TYPE_MISMATCH;
2341 case EDESTADDRREQ: return STATUS_INVALID_PARAMETER;
2342 case EMSGSIZE: return STATUS_BUFFER_OVERFLOW;
2343 case EPROTONOSUPPORT:
2344 case ESOCKTNOSUPPORT:
2345 case EPFNOSUPPORT:
2346 case EAFNOSUPPORT:
2347 case EPROTOTYPE: return STATUS_NOT_SUPPORTED;
2348 case ENOPROTOOPT: return STATUS_INVALID_PARAMETER;
2349 case EOPNOTSUPP: return STATUS_NOT_SUPPORTED;
2350 case EADDRINUSE: return STATUS_SHARING_VIOLATION;
2351 /* Linux returns ENODEV when specifying an invalid sin6_scope_id;
2352 * Windows returns STATUS_INVALID_ADDRESS_COMPONENT */
2353 case ENODEV:
2354 case EADDRNOTAVAIL: return STATUS_INVALID_ADDRESS_COMPONENT;
2355 case ECONNREFUSED: return STATUS_CONNECTION_REFUSED;
2356 case ESHUTDOWN: return STATUS_PIPE_DISCONNECTED;
2357 case ENOTCONN: return STATUS_INVALID_CONNECTION;
2358 case ETIMEDOUT: return STATUS_IO_TIMEOUT;
2359 case ENETUNREACH: return STATUS_NETWORK_UNREACHABLE;
2360 case EHOSTUNREACH: return STATUS_HOST_UNREACHABLE;
2361 case ENETDOWN: return STATUS_NETWORK_BUSY;
2362 case EPIPE:
2363 case ECONNRESET: return STATUS_CONNECTION_RESET;
2364 case ECONNABORTED: return STATUS_CONNECTION_ABORTED;
2365 case EISCONN: return STATUS_CONNECTION_ACTIVE;
2366
2367 case 0: return STATUS_SUCCESS;
2368 default:
2369 errno = err;
2370 perror("wineserver: sock_get_ntstatus() can't map error");
2371 return STATUS_UNSUCCESSFUL;
2372 }
2373 }
2374
2375 static struct accept_req *alloc_accept_req( struct sock *sock, struct sock *acceptsock, struct async *async,
2376 const struct afd_accept_into_params *params )
2377 {
2378 struct accept_req *req = mem_alloc( sizeof(*req) );
2379
2380 if (req)
2381 {
2382 req->async = (struct async *)grab_object( async );
2383 req->iosb = async_get_iosb( async );
2384 req->sock = (struct sock *)grab_object( sock );
2385 req->acceptsock = acceptsock;
2386 if (acceptsock) grab_object( acceptsock );
2387 req->accepted = 0;
2388 req->recv_len = 0;
2389 req->local_len = 0;
2390 if (params)
2391 {
2392 req->recv_len = params->recv_len;
2393 req->local_len = params->local_len;
2394 }
2395 }
2396 return req;
2397 }
2398
2399 static void sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
2400 {
2401 struct sock *sock = get_fd_user( fd );
2402 int unix_fd = -1;
2403
2404 assert( sock->obj.ops == &sock_ops );
2405
2406 if (code != IOCTL_AFD_WINE_CREATE && code != IOCTL_AFD_POLL && (unix_fd = get_unix_fd( fd )) < 0)
2407 return;
2408
2409 switch(code)
2410 {
2411 case IOCTL_AFD_WINE_CREATE:
2412 {
2413 const struct afd_create_params *params = get_req_data();
2414
2415 if (get_req_data_size() != sizeof(*params))
2416 {
2417 set_error( STATUS_INVALID_PARAMETER );
2418 return;
2419 }
2420 init_socket( sock, params->family, params->type, params->protocol );
2421 return;
2422 }
2423
2424 case IOCTL_AFD_WINE_ACCEPT:
2425 {
2426 struct sock *acceptsock;
2427 obj_handle_t handle;
2428
2429 if (get_reply_max_size() != sizeof(handle))
2430 {
2431 set_error( STATUS_BUFFER_TOO_SMALL );
2432 return;
2433 }
2434
2435 if (!(acceptsock = accept_socket( sock )))
2436 {
2437 struct accept_req *req;
2438
2439 if (sock->nonblocking) return;
2440 if (get_error() != STATUS_DEVICE_NOT_READY) return;
2441
2442 if (!(req = alloc_accept_req( sock, NULL, async, NULL ))) return;
2443 list_add_tail( &sock->accept_list, &req->entry );
2444
2445 async_set_completion_callback( async, free_accept_req, req );
2446 queue_async( &sock->accept_q, async );
2447 sock_reselect( sock );
2448 set_error( STATUS_PENDING );
2449 return;
2450 }
2451 handle = alloc_handle( current->process, &acceptsock->obj,
2452 GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, OBJ_INHERIT );
2453 acceptsock->wparam = handle;
2454 sock_reselect( acceptsock );
2455 release_object( acceptsock );
2456 set_reply_data( &handle, sizeof(handle) );
2457 return;
2458 }
2459
2460 case IOCTL_AFD_WINE_ACCEPT_INTO:
2461 {
2462 static const int access = FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | FILE_READ_DATA;
2463 const struct afd_accept_into_params *params = get_req_data();
2464 struct sock *acceptsock;
2465 unsigned int remote_len;
2466 struct accept_req *req;
2467
2468 if (get_req_data_size() != sizeof(*params) ||
2469 get_reply_max_size() < params->recv_len ||
2470 get_reply_max_size() - params->recv_len < params->local_len)
2471 {
2472 set_error( STATUS_BUFFER_TOO_SMALL );
2473 return;
2474 }
2475
2476 remote_len = get_reply_max_size() - params->recv_len - params->local_len;
2477 if (remote_len < sizeof(int))
2478 {
2479 set_error( STATUS_INVALID_PARAMETER );
2480 return;
2481 }
2482
2483 if (!(acceptsock = (struct sock *)get_handle_obj( current->process, params->accept_handle, access, &sock_ops )))
2484 return;
2485
2486 if (acceptsock->accept_recv_req)
2487 {
2488 release_object( acceptsock );
2489 set_error( STATUS_INVALID_PARAMETER );
2490 return;
2491 }
2492
2493 if (!(req = alloc_accept_req( sock, acceptsock, async, params )))
2494 {
2495 release_object( acceptsock );
2496 return;
2497 }
2498 list_add_tail( &sock->accept_list, &req->entry );
2499 acceptsock->accept_recv_req = req;
2500 release_object( acceptsock );
2501
2502 acceptsock->wparam = params->accept_handle;
2503 async_set_completion_callback( async, free_accept_req, req );
2504 queue_async( &sock->accept_q, async );
2505 sock_reselect( sock );
2506 set_error( STATUS_PENDING );
2507 return;
2508 }
2509
2510 case IOCTL_AFD_LISTEN:
2511 {
2512 const struct afd_listen_params *params = get_req_data();
2513
2514 if (get_req_data_size() < sizeof(*params))
2515 {
2516 set_error( STATUS_INVALID_PARAMETER );
2517 return;
2518 }
2519
2520 if (!sock->bound)
2521 {
2522 set_error( STATUS_INVALID_PARAMETER );
2523 return;
2524 }
2525
2526 if (listen( unix_fd, params->backlog ) < 0)
2527 {
2528 set_error( sock_get_ntstatus( errno ) );
2529 return;
2530 }
2531
2532 sock->state = SOCK_LISTENING;
2533
2534 /* a listening socket can no longer be accepted into */
2535 allow_fd_caching( sock->fd );
2536
2537 /* we may already be selecting for AFD_POLL_ACCEPT */
2538 sock_reselect( sock );
2539 return;
2540 }
2541
2542 case IOCTL_AFD_WINE_CONNECT:
2543 {
2544 const struct afd_connect_params *params = get_req_data();
2545 const struct WS_sockaddr *addr;
2546 union unix_sockaddr unix_addr;
2547 struct connect_req *req;
2548 socklen_t unix_len;
2549 int send_len, ret;
2550
2551 if (get_req_data_size() < sizeof(*params) ||
2552 get_req_data_size() - sizeof(*params) < params->addr_len)
2553 {
2554 set_error( STATUS_BUFFER_TOO_SMALL );
2555 return;
2556 }
2557 send_len = get_req_data_size() - sizeof(*params) - params->addr_len;
2558 addr = (const struct WS_sockaddr *)(params + 1);
2559
2560 if (!params->synchronous && !sock->bound)
2561 {
2562 set_error( STATUS_INVALID_PARAMETER );
2563 return;
2564 }
2565
2566 if (sock->accept_recv_req)
2567 {
2568 set_error( STATUS_INVALID_PARAMETER );
2569 return;
2570 }
2571
2572 if (sock->connect_req)
2573 {
2574 set_error( STATUS_INVALID_PARAMETER );
2575 return;
2576 }
2577
2578 switch (sock->state)
2579 {
2580 case SOCK_LISTENING:
2581 set_error( STATUS_INVALID_PARAMETER );
2582 return;
2583
2584 case SOCK_CONNECTING:
2585 /* FIXME: STATUS_ADDRESS_ALREADY_ASSOCIATED probably isn't right,
2586 * but there's no status code that maps to WSAEALREADY... */
2587 set_error( params->synchronous ? STATUS_ADDRESS_ALREADY_ASSOCIATED : STATUS_INVALID_PARAMETER );
2588 return;
2589
2590 case SOCK_CONNECTED:
2591 set_error( STATUS_CONNECTION_ACTIVE );
2592 return;
2593
2594 case SOCK_UNCONNECTED:
2595 case SOCK_CONNECTIONLESS:
2596 break;
2597 }
2598
2599 unix_len = sockaddr_to_unix( addr, params->addr_len, &unix_addr );
2600 if (!unix_len)
2601 {
2602 set_error( STATUS_INVALID_ADDRESS );
2603 return;
2604 }
2605 if (unix_addr.addr.sa_family == AF_INET && !memcmp( &unix_addr.in.sin_addr, magic_loopback_addr, 4 ))
2606 unix_addr.in.sin_addr.s_addr = htonl( INADDR_LOOPBACK );
2607
2608 ret = connect( unix_fd, &unix_addr.addr, unix_len );
2609 if (ret < 0 && errno == ECONNABORTED)
2610 {
2611 /* On Linux with nonblocking socket if the previous connect() failed for any reason (including
2612 * timeout), next connect will fail. If the error code was queried by getsockopt( SO_ERROR )
2613 * the error code returned now is ECONNABORTED (otherwise that is the actual connect() failure
2614 * error code). If we got here after previous connect attempt on the socket that means
2615 * we already queried SO_ERROR in sock_error(), so retrying on ECONNABORTED only is
2616 * sufficient. */
2617 ret = connect( unix_fd, &unix_addr.addr, unix_len );
2618 }
2619
2620 if (ret < 0 && errno != EINPROGRESS)
2621 {
2622 set_error( sock_get_ntstatus( errno ) );
2623 return;
2624 }
2625
2626 /* a connected or connecting socket can no longer be accepted into */
2627 allow_fd_caching( sock->fd );
2628
2629 unix_len = sizeof(unix_addr);
2630 if (!getsockname( unix_fd, &unix_addr.addr, &unix_len ))
2631 sock->addr_len = sockaddr_from_unix( &unix_addr, &sock->addr.addr, sizeof(sock->addr) );
2632 sock->bound = 1;
2633
2634 if (!ret)
2635 {
2636 if (sock->type != WS_SOCK_DGRAM)
2637 {
2638 sock->state = SOCK_CONNECTED;
2639 sock->connect_time = current_time;
2640 }
2641
2642 if (!send_len) return;
2643 }
2644
2645 if (sock->type != WS_SOCK_DGRAM)
2646 sock->state = SOCK_CONNECTING;
2647
2648 if (params->synchronous && sock->nonblocking)
2649 {
2650 sock_reselect( sock );
2651 set_error( STATUS_DEVICE_NOT_READY );
2652 return;
2653 }
2654
2655 if (!(req = mem_alloc( sizeof(*req) )))
2656 return;
2657
2658 req->async = (struct async *)grab_object( async );
2659 req->iosb = async_get_iosb( async );
2660 req->sock = (struct sock *)grab_object( sock );
2661 req->addr_len = params->addr_len;
2662 req->send_len = send_len;
2663 req->send_cursor = 0;
2664
2665 async_set_completion_callback( async, free_connect_req, req );
2666 sock->connect_req = req;
2667 queue_async( &sock->connect_q, async );
2668 sock_reselect( sock );
2669 set_error( STATUS_PENDING );
2670 return;
2671 }
2672
2673 case IOCTL_AFD_WINE_SHUTDOWN:
2674 {
2675 unsigned int how;
2676
2677 if (get_req_data_size() < sizeof(int))
2678 {
2679 set_error( STATUS_BUFFER_TOO_SMALL );
2680 return;
2681 }
2682 how = *(int *)get_req_data();
2683
2684 if (how > SD_BOTH)
2685 {
2686 set_error( STATUS_INVALID_PARAMETER );
2687 return;
2688 }
2689
2690 if (sock->state != SOCK_CONNECTED && sock->state != SOCK_CONNECTIONLESS)
2691 {
2692 set_error( STATUS_INVALID_CONNECTION );
2693 return;
2694 }
2695
2696 if (how != SD_SEND)
2697 {
2698 sock->rd_shutdown = 1;
2699 }
2700 if (how != SD_RECEIVE)
2701 {
2702 sock->wr_shutdown = 1;
2703 if (list_empty( &sock->write_q.queue ))
2704 shutdown( unix_fd, SHUT_WR );
2705 else
2706 sock->wr_shutdown_pending = 1;
2707 }
2708
2709 if (how == SD_BOTH)
2710 {
2711 if (sock->event) release_object( sock->event );
2712 sock->event = NULL;
2713 sock->window = 0;
2714 sock->mask = 0;
2715 sock->nonblocking = 1;
2716 }
2717
2718 sock_reselect( sock );
2719 return;
2720 }
2721
2722 case IOCTL_AFD_WINE_ADDRESS_LIST_CHANGE:
2723 {
2724 int force_async;
2725
2726 if (get_req_data_size() < sizeof(int))
2727 {
2728 set_error( STATUS_BUFFER_TOO_SMALL );
2729 return;
2730 }
2731 force_async = *(int *)get_req_data();
2732
2733 if (sock->nonblocking && !force_async)
2734 {
2735 set_error( STATUS_DEVICE_NOT_READY );
2736 return;
2737 }
2738 if (!sock_get_ifchange( sock )) return;
2739 queue_async( &sock->ifchange_q, async );
2740 set_error( STATUS_PENDING );
2741 return;
2742 }
2743
2744 case IOCTL_AFD_WINE_FIONBIO:
2745 if (get_req_data_size() < sizeof(int))
2746 {
2747 set_error( STATUS_BUFFER_TOO_SMALL );
2748 return;
2749 }
2750 if (*(int *)get_req_data())
2751 {
2752 sock->nonblocking = 1;
2753 }
2754 else
2755 {
2756 if (sock->mask)
2757 {
2758 set_error( STATUS_INVALID_PARAMETER );
2759 return;
2760 }
2761 sock->nonblocking = 0;
2762 }
2763 return;
2764
2765 case IOCTL_AFD_EVENT_SELECT:
2766 {
2767 struct event *event = NULL;
2768 obj_handle_t event_handle;
2769 int mask;
2770
2771 set_async_pending( async );
2772
2773 if (is_machine_64bit( current->process->machine ))
2774 {
2775 const struct afd_event_select_params_64 *params = get_req_data();
2776
2777 if (get_req_data_size() < sizeof(*params))
2778 {
2779 set_error( STATUS_INVALID_PARAMETER );
2780 return;
2781 }
2782
2783 event_handle = params->event;
2784 mask = params->mask;
2785 }
2786 else
2787 {
2788 const struct afd_event_select_params_32 *params = get_req_data();
2789
2790 if (get_req_data_size() < sizeof(*params))
2791 {
2792 set_error( STATUS_INVALID_PARAMETER );
2793 return;
2794 }
2795
2796 event_handle = params->event;
2797 mask = params->mask;
2798 }
2799
2800 if ((event_handle || mask) &&
2801 !(event = get_event_obj( current->process, event_handle, EVENT_MODIFY_STATE )))
2802 {
2803 set_error( STATUS_INVALID_PARAMETER );
2804 return;
2805 }
2806
2807 if (sock->event) release_object( sock->event );
2808 sock->event = event;
2809 sock->mask = mask;
2810 sock->window = 0;
2811 sock->message = 0;
2812 sock->wparam = 0;
2813 sock->nonblocking = 1;
2814
2815 sock_reselect( sock );
2816 /* Explicitly wake the socket up if the mask causes it to become
2817 * signaled. Note that reselecting isn't enough, since we might already
2818 * have had events recorded in sock->reported_events and we don't want
2819 * to select for them again. */
2820 sock_wake_up( sock );
2821
2822 return;
2823 }
2824
2825 case IOCTL_AFD_WINE_MESSAGE_SELECT:
2826 {
2827 const struct afd_message_select_params *params = get_req_data();
2828
2829 if (get_req_data_size() < sizeof(params))
2830 {
2831 set_error( STATUS_BUFFER_TOO_SMALL );
2832 return;
2833 }
2834
2835 if (sock->event) release_object( sock->event );
2836
2837 if (params->window)
2838 {
2839 sock->pending_events = 0;
2840 sock->reported_events = 0;
2841 }
2842 sock->event = NULL;
2843 sock->mask = params->mask;
2844 sock->window = params->window;
2845 sock->message = params->message;
2846 sock->wparam = params->handle;
2847 sock->nonblocking = 1;
2848
2849 sock_reselect( sock );
2850
2851 return;
2852 }
2853
2854 case IOCTL_AFD_BIND:
2855 {
2856 const struct afd_bind_params *params = get_req_data();
2857 union unix_sockaddr unix_addr, bind_addr;
2858 data_size_t in_size;
2859 socklen_t unix_len;
2860 int v6only = 1;
2861
2862 /* the ioctl is METHOD_NEITHER, so ntdll gives us the output buffer as
2863 * input */
2864 if (get_req_data_size() < get_reply_max_size())
2865 {
2866 set_error( STATUS_BUFFER_TOO_SMALL );
2867 return;
2868 }
2869 in_size = get_req_data_size() - get_reply_max_size();
2870 if (in_size < offsetof(struct afd_bind_params, addr.sa_data)
2871 || get_reply_max_size() < in_size - sizeof(int))
2872 {
2873 set_error( STATUS_INVALID_PARAMETER );
2874 return;
2875 }
2876
2877 if (sock->bound)
2878 {
2879 set_error( STATUS_ADDRESS_ALREADY_ASSOCIATED );
2880 return;
2881 }
2882
2883 unix_len = sockaddr_to_unix( &params->addr, in_size - sizeof(int), &unix_addr );
2884 if (!unix_len)
2885 {
2886 set_error( STATUS_INVALID_ADDRESS );
2887 return;
2888 }
2889 bind_addr = unix_addr;
2890
2891 if (unix_addr.addr.sa_family == AF_INET)
2892 {
2893 if (!memcmp( &unix_addr.in.sin_addr, magic_loopback_addr, 4 )
2894 || bind_to_interface( sock, &unix_addr.in ))
2895 bind_addr.in.sin_addr.s_addr = htonl( INADDR_ANY );
2896 }
2897 else if (unix_addr.addr.sa_family == AF_INET6)
2898 {
2899 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
2900 /* Windows allows specifying zero to use the default scope. Linux
2901 * interprets it as an interface index and requires that it be
2902 * nonzero. */
2903 if (!unix_addr.in6.sin6_scope_id)
2904 bind_addr.in6.sin6_scope_id = get_ipv6_interface_index( &unix_addr.in6.sin6_addr );
2905 #endif
2906 }
2907
2908 set_async_pending( async );
2909
2910 #ifdef IPV6_V6ONLY
2911 if (sock->family == WS_AF_INET6)
2912 {
2913 socklen_t len = sizeof(v6only);
2914
2915 getsockopt( get_unix_fd(sock->fd), IPPROTO_IPV6, IPV6_V6ONLY, &v6only, &len );
2916 }
2917 #endif
2918
2919 if (check_addr_usage( sock, &bind_addr, v6only ))
2920 return;
2921
2922 if (bind( unix_fd, &bind_addr.addr, unix_len ) < 0)
2923 {
2924 if (errno == EADDRINUSE && sock->reuseaddr)
2925 errno = EACCES;
2926
2927 set_error( sock_get_ntstatus( errno ) );
2928 return;
2929 }
2930
2931 sock->bound = 1;
2932
2933 unix_len = sizeof(bind_addr);
2934 if (!getsockname( unix_fd, &bind_addr.addr, &unix_len ))
2935 {
2936 /* store the interface or magic loopback address instead of the
2937 * actual unix address */
2938 if (bind_addr.addr.sa_family == AF_INET)
2939 bind_addr.in.sin_addr = unix_addr.in.sin_addr;
2940 sock->addr_len = sockaddr_from_unix( &bind_addr, &sock->addr.addr, sizeof(sock->addr) );
2941 }
2942
2943 update_addr_usage( sock, &bind_addr, v6only );
2944
2945 if (get_reply_max_size() >= sock->addr_len)
2946 set_reply_data( &sock->addr, sock->addr_len );
2947 return;
2948 }
2949
2950 case IOCTL_AFD_GETSOCKNAME:
2951 if (!sock->bound)
2952 {
2953 set_error( STATUS_INVALID_PARAMETER );
2954 return;
2955 }
2956
2957 if (get_reply_max_size() < sock->addr_len)
2958 {
2959 set_error( STATUS_BUFFER_TOO_SMALL );
2960 return;
2961 }
2962
2963 set_reply_data( &sock->addr, sock->addr_len );
2964 return;
2965
2966 case IOCTL_AFD_WINE_DEFER:
2967 {
2968 const obj_handle_t *handle = get_req_data();
2969 struct sock *acceptsock;
2970
2971 if (get_req_data_size() < sizeof(*handle))
2972 {
2973 set_error( STATUS_BUFFER_TOO_SMALL );
2974 return;
2975 }
2976
2977 acceptsock = (struct sock *)get_handle_obj( current->process, *handle, 0, &sock_ops );
2978 if (!acceptsock) return;
2979
2980 sock->deferred = acceptsock;
2981 return;
2982 }
2983
2984 case IOCTL_AFD_WINE_GET_INFO:
2985 {
2986 struct afd_get_info_params params;
2987
2988 if (get_reply_max_size() < sizeof(params))
2989 {
2990 set_error( STATUS_BUFFER_TOO_SMALL );
2991 return;
2992 }
2993
2994 params.family = sock->family;
2995 params.type = sock->type;
2996 params.protocol = sock->proto;
2997 set_reply_data( &params, sizeof(params) );
2998 return;
2999 }
3000
3001 case IOCTL_AFD_WINE_GET_SO_ACCEPTCONN:
3002 {
3003 int listening = (sock->state == SOCK_LISTENING);
3004
3005 if (get_reply_max_size() < sizeof(listening))
3006 {
3007 set_error( STATUS_BUFFER_TOO_SMALL );
3008 return;
3009 }
3010
3011 set_reply_data( &listening, sizeof(listening) );
3012 return;
3013 }
3014
3015 case IOCTL_AFD_WINE_GET_SO_ERROR:
3016 {
3017 int error;
3018 unsigned int i;
3019
3020 if (get_reply_max_size() < sizeof(error))
3021 {
3022 set_error( STATUS_BUFFER_TOO_SMALL );
3023 return;
3024 }
3025
3026 error = sock_error( sock );
3027 if (!error)
3028 {
3029 for (i = 0; i < ARRAY_SIZE( sock->errors ); ++i)
3030 {
3031 if (sock->errors[i])
3032 {
3033 error = sock->errors[i];
3034 break;
3035 }
3036 }
3037 }
3038
3039 error = sock_get_error( error );
3040 set_reply_data( &error, sizeof(error) );
3041 return;
3042 }
3043
3044 case IOCTL_AFD_WINE_GET_SO_RCVBUF:
3045 {
3046 int rcvbuf = sock->rcvbuf;
3047
3048 if (get_reply_max_size() < sizeof(rcvbuf))
3049 {
3050 set_error( STATUS_BUFFER_TOO_SMALL );
3051 return;
3052 }
3053
3054 set_reply_data( &rcvbuf, sizeof(rcvbuf) );
3055 return;
3056 }
3057
3058 case IOCTL_AFD_WINE_SET_SO_RCVBUF:
3059 {
3060 DWORD rcvbuf;
3061
3062 if (get_req_data_size() < sizeof(rcvbuf))
3063 {
3064 set_error( STATUS_BUFFER_TOO_SMALL );
3065 return;
3066 }
3067 rcvbuf = *(DWORD *)get_req_data();
3068
3069 if (!setsockopt( unix_fd, SOL_SOCKET, SO_RCVBUF, (char *)&rcvbuf, sizeof(rcvbuf) ))
3070 sock->rcvbuf = rcvbuf;
3071 else
3072 set_error( sock_get_ntstatus( errno ) );
3073 return;
3074 }
3075
3076 case IOCTL_AFD_WINE_GET_SO_RCVTIMEO:
3077 {
3078 DWORD rcvtimeo = sock->rcvtimeo;
3079
3080 if (get_reply_max_size() < sizeof(rcvtimeo))
3081 {
3082 set_error( STATUS_BUFFER_TOO_SMALL );
3083 return;
3084 }
3085
3086 set_reply_data( &rcvtimeo, sizeof(rcvtimeo) );
3087 return;
3088 }
3089
3090 case IOCTL_AFD_WINE_SET_SO_RCVTIMEO:
3091 {
3092 DWORD rcvtimeo;
3093
3094 if (get_req_data_size() < sizeof(rcvtimeo))
3095 {
3096 set_error( STATUS_BUFFER_TOO_SMALL );
3097 return;
3098 }
3099 rcvtimeo = *(DWORD *)get_req_data();
3100
3101 sock->rcvtimeo = rcvtimeo;
3102 return;
3103 }
3104
3105 /* BSD socket SO_REUSEADDR is not compatible with winsock semantics. */
3106 case IOCTL_AFD_WINE_SET_SO_REUSEADDR:
3107 {
3108 int reuse, ret;
3109
3110 if (get_req_data_size() < sizeof(reuse))
3111 {
3112 set_error( STATUS_BUFFER_TOO_SMALL );
3113 return;
3114 }
3115
3116 reuse = *(int *)get_req_data();
3117
3118 if (reuse && sock->exclusiveaddruse)
3119 {
3120 set_error( STATUS_INVALID_PARAMETER );
3121 return;
3122 }
3123
3124 if (is_tcp_socket( sock ))
3125 ret = 0;
3126 else
3127 ret = setsockopt( unix_fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse) );
3128 #ifdef __APPLE__
3129 if (!ret) ret = setsockopt( unix_fd, SOL_SOCKET, SO_REUSEPORT, &reuse, sizeof(reuse) );
3130 #endif
3131 if (ret)
3132 set_error( sock_get_ntstatus( errno ) );
3133 else
3134 sock->reuseaddr = !!reuse;
3135 return;
3136 }
3137
3138 case IOCTL_AFD_WINE_SET_SO_EXCLUSIVEADDRUSE:
3139 {
3140 int exclusive;
3141
3142 if (get_req_data_size() < sizeof(exclusive))
3143 {
3144 set_error( STATUS_BUFFER_TOO_SMALL );
3145 return;
3146 }
3147
3148 exclusive = *(int *)get_req_data();
3149 if (exclusive && sock->reuseaddr)
3150 {
3151 set_error( STATUS_INVALID_PARAMETER );
3152 return;
3153 }
3154 sock->exclusiveaddruse = !!exclusive;
3155 return;
3156 }
3157
3158 case IOCTL_AFD_WINE_GET_SO_SNDBUF:
3159 {
3160 int sndbuf = sock->sndbuf;
3161
3162 if (get_reply_max_size() < sizeof(sndbuf))
3163 {
3164 set_error( STATUS_BUFFER_TOO_SMALL );
3165 return;
3166 }
3167
3168 set_reply_data( &sndbuf, sizeof(sndbuf) );
3169 return;
3170 }
3171
3172 case IOCTL_AFD_WINE_SET_SO_SNDBUF:
3173 {
3174 DWORD sndbuf;
3175
3176 if (get_req_data_size() < sizeof(sndbuf))
3177 {
3178 set_error( STATUS_BUFFER_TOO_SMALL );
3179 return;
3180 }
3181 sndbuf = *(DWORD *)get_req_data();
3182
3183 #ifdef __APPLE__
3184 if (!sndbuf)
3185 {
3186 /* setsockopt fails if a zero value is passed */
3187 sock->sndbuf = sndbuf;
3188 return;
3189 }
3190 #endif
3191
3192 if (!setsockopt( unix_fd, SOL_SOCKET, SO_SNDBUF, (char *)&sndbuf, sizeof(sndbuf) ))
3193 sock->sndbuf = sndbuf;
3194 else
3195 set_error( sock_get_ntstatus( errno ) );
3196 return;
3197 }
3198
3199 case IOCTL_AFD_WINE_GET_SO_SNDTIMEO:
3200 {
3201 DWORD sndtimeo = sock->sndtimeo;
3202
3203 if (get_reply_max_size() < sizeof(sndtimeo))
3204 {
3205 set_error( STATUS_BUFFER_TOO_SMALL );
3206 return;
3207 }
3208
3209 set_reply_data( &sndtimeo, sizeof(sndtimeo) );
3210 return;
3211 }
3212
3213 case IOCTL_AFD_WINE_SET_SO_SNDTIMEO:
3214 {
3215 DWORD sndtimeo;
3216
3217 if (get_req_data_size() < sizeof(sndtimeo))
3218 {
3219 set_error( STATUS_BUFFER_TOO_SMALL );
3220 return;
3221 }
3222 sndtimeo = *(DWORD *)get_req_data();
3223
3224 sock->sndtimeo = sndtimeo;
3225 return;
3226 }
3227
3228 case IOCTL_AFD_WINE_GET_SO_CONNECT_TIME:
3229 {
3230 DWORD time = ~0u;
3231
3232 if (get_reply_max_size() < sizeof(time))
3233 {
3234 set_error( STATUS_BUFFER_TOO_SMALL );
3235 return;
3236 }
3237
3238 if (sock->state == SOCK_CONNECTED)
3239 time = (current_time - sock->connect_time) / 10000000;
3240
3241 set_reply_data( &time, sizeof(time) );
3242 return;
3243 }
3244
3245 case IOCTL_AFD_WINE_GET_SO_REUSEADDR:
3246 {
3247 int reuse;
3248
3249 if (!get_reply_max_size())
3250 {
3251 set_error( STATUS_BUFFER_TOO_SMALL );
3252 return;
3253 }
3254
3255 reuse = sock->reuseaddr;
3256 set_reply_data( &reuse, min( sizeof(reuse), get_reply_max_size() ));
3257 return;
3258 }
3259
3260 case IOCTL_AFD_WINE_GET_SO_EXCLUSIVEADDRUSE:
3261 {
3262 int exclusive;
3263
3264 if (!get_reply_max_size())
3265 {
3266 set_error( STATUS_BUFFER_TOO_SMALL );
3267 return;
3268 }
3269
3270 exclusive = sock->exclusiveaddruse;
3271 set_reply_data( &exclusive, min( sizeof(exclusive), get_reply_max_size() ));
3272 return;
3273 }
3274
3275 case IOCTL_AFD_POLL:
3276 {
3277 if (get_reply_max_size() < get_req_data_size())
3278 {
3279 set_error( STATUS_INVALID_PARAMETER );
3280 return;
3281 }
3282
3283 if (is_machine_64bit( current->process->machine ))
3284 {
3285 const struct afd_poll_params_64 *params = get_req_data();
3286
3287 if (get_req_data_size() < sizeof(struct afd_poll_params_64) ||
3288 get_req_data_size() < offsetof( struct afd_poll_params_64, sockets[params->count] ))
3289 {
3290 set_error( STATUS_INVALID_PARAMETER );
3291 return;
3292 }
3293
3294 poll_socket( sock, async, params->exclusive, params->timeout, params->count, params->sockets );
3295 }
3296 else
3297 {
3298 const struct afd_poll_params_32 *params = get_req_data();
3299 struct afd_poll_socket_64 *sockets;
3300 unsigned int i;
3301
3302 if (get_req_data_size() < sizeof(struct afd_poll_params_32) ||
3303 get_req_data_size() < offsetof( struct afd_poll_params_32, sockets[params->count] ))
3304 {
3305 set_error( STATUS_INVALID_PARAMETER );
3306 return;
3307 }
3308
3309 if (!(sockets = mem_alloc( params->count * sizeof(*sockets) ))) return;
3310 for (i = 0; i < params->count; ++i)
3311 {
3312 sockets[i].socket = params->sockets[i].socket;
3313 sockets[i].flags = params->sockets[i].flags;
3314 sockets[i].status = params->sockets[i].status;
3315 }
3316
3317 poll_socket( sock, async, params->exclusive, params->timeout, params->count, sockets );
3318 free( sockets );
3319 }
3320
3321 return;
3322 }
3323
3324 default:
3325 set_error( STATUS_NOT_SUPPORTED );
3326 return;
3327 }
3328 }
3329
3330 static void handle_exclusive_poll(struct poll_req *req)
3331 {
3332 unsigned int i;
3333
3334 for (i = 0; i < req->count; ++i)
3335 {
3336 struct sock *sock = req->sockets[i].sock;
3337 struct poll_req *main_poll = sock->main_poll;
3338
3339 if (main_poll && main_poll->exclusive && req->exclusive)
3340 {
3341 complete_async_poll( main_poll, STATUS_SUCCESS );
3342 main_poll = NULL;
3343 }
3344
3345 if (!main_poll)
3346 sock->main_poll = req;
3347 }
3348 }
3349
3350 static void poll_socket( struct sock *poll_sock, struct async *async, int exclusive, timeout_t timeout,
3351 unsigned int count, const struct afd_poll_socket_64 *sockets )
3352 {
3353 BOOL signaled = FALSE;
3354 struct poll_req *req;
3355 unsigned int i, j;
3356
3357 if (!count)
3358 {
3359 set_error( STATUS_INVALID_PARAMETER );
3360 return;
3361 }
3362
3363 if (!(req = mem_alloc( offsetof( struct poll_req, sockets[count] ) )))
3364 return;
3365
3366 req->timeout = NULL;
3367 req->pending = 0;
3368 if (timeout && timeout != TIMEOUT_INFINITE &&
3369 !(req->timeout = add_timeout_user( timeout, async_poll_timeout, req )))
3370 {
3371 free( req );
3372 return;
3373 }
3374 req->orig_timeout = timeout;
3375
3376 for (i = 0; i < count; ++i)
3377 {
3378 req->sockets[i].sock = (struct sock *)get_handle_obj( current->process, sockets[i].socket, 0, &sock_ops );
3379 if (!req->sockets[i].sock)
3380 {
3381 for (j = 0; j < i; ++j) release_object( req->sockets[j].sock );
3382 if (req->timeout) remove_timeout_user( req->timeout );
3383 free( req );
3384 return;
3385 }
3386 req->sockets[i].handle = sockets[i].socket;
3387 req->sockets[i].mask = sockets[i].flags;
3388 req->sockets[i].flags = 0;
3389 }
3390
3391 req->exclusive = exclusive;
3392 req->count = count;
3393 req->async = (struct async *)grab_object( async );
3394 req->iosb = async_get_iosb( async );
3395
3396 handle_exclusive_poll(req);
3397
3398 list_add_tail( &poll_list, &req->entry );
3399 async_set_completion_callback( async, free_poll_req, req );
3400 queue_async( &poll_sock->poll_q, async );
3401
3402 for (i = 0; i < count; ++i)
3403 {
3404 struct sock *sock = req->sockets[i].sock;
3405 int mask = req->sockets[i].mask;
3406 struct pollfd pollfd;
3407
3408 pollfd.fd = get_unix_fd( sock->fd );
3409 pollfd.events = poll_flags_from_afd( sock, mask );
3410 if (pollfd.events >= 0 && poll( &pollfd, 1, 0 ) >= 0)
3411 sock_poll_event( sock->fd, pollfd.revents );
3412
3413 /* FIXME: do other error conditions deserve a similar treatment? */
3414 if (sock->state != SOCK_CONNECTING && sock->errors[AFD_POLL_BIT_CONNECT_ERR] && (mask & AFD_POLL_CONNECT_ERR))
3415 {
3416 req->sockets[i].flags |= AFD_POLL_CONNECT_ERR;
3417 req->sockets[i].status = sock_get_ntstatus( sock->errors[AFD_POLL_BIT_CONNECT_ERR] );
3418 }
3419
3420 if (req->sockets[i].flags)
3421 signaled = TRUE;
3422 }
3423
3424 if (!timeout || signaled)
3425 complete_async_poll( req, STATUS_SUCCESS );
3426 else
3427 req->pending = 1;
3428
3429 for (i = 0; i < req->count; ++i)
3430 sock_reselect( req->sockets[i].sock );
3431 set_error( STATUS_PENDING );
3432 }
3433
3434 #ifdef HAVE_LINUX_RTNETLINK_H
3435
3436 /* only keep one ifchange object around, all sockets waiting for wakeups will look to it */
3437 static struct object *ifchange_object;
3438
3439 static void ifchange_dump( struct object *obj, int verbose );
3440 static struct fd *ifchange_get_fd( struct object *obj );
3441 static void ifchange_destroy( struct object *obj );
3442
3443 static int ifchange_get_poll_events( struct fd *fd );
3444 static void ifchange_poll_event( struct fd *fd, int event );
3445
3446 struct ifchange
3447 {
3448 struct object obj; /* object header */
3449 struct fd *fd; /* interface change file descriptor */
3450 struct list sockets; /* list of sockets to send interface change notifications */
3451 };
3452
3453 static const struct object_ops ifchange_ops =
3454 {
3455 sizeof(struct ifchange), /* size */
3456 &no_type, /* type */
3457 ifchange_dump, /* dump */
3458 no_add_queue, /* add_queue */
3459 NULL, /* remove_queue */
3460 NULL, /* signaled */
3461 no_satisfied, /* satisfied */
3462 no_signal, /* signal */
3463 ifchange_get_fd, /* get_fd */
3464 default_map_access, /* map_access */
3465 default_get_sd, /* get_sd */
3466 default_set_sd, /* set_sd */
3467 no_get_full_name, /* get_full_name */
3468 no_lookup_name, /* lookup_name */
3469 no_link_name, /* link_name */
3470 NULL, /* unlink_name */
3471 no_open_file, /* open_file */
3472 no_kernel_obj_list, /* get_kernel_obj_list */
3473 no_close_handle, /* close_handle */
3474 ifchange_destroy /* destroy */
3475 };
3476
3477 static const struct fd_ops ifchange_fd_ops =
3478 {
3479 ifchange_get_poll_events, /* get_poll_events */
3480 ifchange_poll_event, /* poll_event */
3481 NULL, /* get_fd_type */
3482 no_fd_read, /* read */
3483 no_fd_write, /* write */
3484 no_fd_flush, /* flush */
3485 no_fd_get_file_info, /* get_file_info */
3486 no_fd_get_volume_info, /* get_volume_info */
3487 no_fd_ioctl, /* ioctl */
3488 NULL, /* cancel_async */
3489 NULL, /* queue_async */
3490 NULL /* reselect_async */
3491 };
3492
3493 static void ifchange_dump( struct object *obj, int verbose )
3494 {
3495 assert( obj->ops == &ifchange_ops );
3496 fprintf( stderr, "Interface change\n" );
3497 }
3498
3499 static struct fd *ifchange_get_fd( struct object *obj )
3500 {
3501 struct ifchange *ifchange = (struct ifchange *)obj;
3502 return (struct fd *)grab_object( ifchange->fd );
3503 }
3504
3505 static void ifchange_destroy( struct object *obj )
3506 {
3507 struct ifchange *ifchange = (struct ifchange *)obj;
3508 assert( obj->ops == &ifchange_ops );
3509
3510 release_object( ifchange->fd );
3511
3512 /* reset the global ifchange object so that it will be recreated if it is needed again */
3513 assert( obj == ifchange_object );
3514 ifchange_object = NULL;
3515 }
3516
3517 static int ifchange_get_poll_events( struct fd *fd )
3518 {
3519 return POLLIN;
3520 }
3521
3522 /* wake up all the sockets waiting for a change notification event */
3523 static void ifchange_wake_up( struct object *obj, unsigned int status )
3524 {
3525 struct ifchange *ifchange = (struct ifchange *)obj;
3526 struct list *ptr, *next;
3527 assert( obj->ops == &ifchange_ops );
3528 assert( obj == ifchange_object );
3529
3530 LIST_FOR_EACH_SAFE( ptr, next, &ifchange->sockets )
3531 {
3532 struct sock *sock = LIST_ENTRY( ptr, struct sock, ifchange_entry );
3533
3534 assert( sock->ifchange_obj );
3535 async_wake_up( &sock->ifchange_q, status ); /* issue ifchange notification for the socket */
3536 sock_release_ifchange( sock ); /* remove socket from list and decrement ifchange refcount */
3537 }
3538 }
3539
3540 static void ifchange_poll_event( struct fd *fd, int event )
3541 {
3542 struct object *ifchange = get_fd_user( fd );
3543 unsigned int status = STATUS_PENDING;
3544 char buffer[PIPE_BUF];
3545 int r;
3546
3547 r = recv( get_unix_fd(fd), buffer, sizeof(buffer), MSG_DONTWAIT );
3548 if (r < 0)
3549 {
3550 if (errno == EWOULDBLOCK || (EWOULDBLOCK != EAGAIN && errno == EAGAIN))
3551 return; /* retry when poll() says the socket is ready */
3552 status = sock_get_ntstatus( errno );
3553 }
3554 else if (r > 0)
3555 {
3556 struct nlmsghdr *nlh;
3557
3558 for (nlh = (struct nlmsghdr *)buffer; NLMSG_OK(nlh, r); nlh = NLMSG_NEXT(nlh, r))
3559 {
3560 if (nlh->nlmsg_type == NLMSG_DONE)
3561 break;
3562 if (nlh->nlmsg_type == RTM_NEWADDR || nlh->nlmsg_type == RTM_DELADDR)
3563 status = STATUS_SUCCESS;
3564 }
3565 }
3566 else status = STATUS_CANCELLED;
3567
3568 if (status != STATUS_PENDING) ifchange_wake_up( ifchange, status );
3569 }
3570
3571 #endif
3572
3573 /* we only need one of these interface notification objects, all of the sockets dependent upon
3574 * it will wake up when a notification event occurs */
3575 static struct object *get_ifchange( void )
3576 {
3577 #ifdef HAVE_LINUX_RTNETLINK_H
3578 struct ifchange *ifchange;
3579 struct sockaddr_nl addr;
3580 int unix_fd;
3581
3582 if (ifchange_object)
3583 {
3584 /* increment the refcount for each socket that uses the ifchange object */
3585 return grab_object( ifchange_object );
3586 }
3587
3588 /* create the socket we need for processing interface change notifications */
3589 unix_fd = socket( PF_NETLINK, SOCK_RAW, NETLINK_ROUTE );
3590 if (unix_fd == -1)
3591 {
3592 set_error( sock_get_ntstatus( errno ));
3593 return NULL;
3594 }
3595 fcntl( unix_fd, F_SETFL, O_NONBLOCK ); /* make socket nonblocking */
3596 memset( &addr, 0, sizeof(addr) );
3597 addr.nl_family = AF_NETLINK;
3598 addr.nl_groups = RTMGRP_IPV4_IFADDR;
3599 /* bind the socket to the special netlink kernel interface */
3600 if (bind( unix_fd, (struct sockaddr *)&addr, sizeof(addr) ) == -1)
3601 {
3602 close( unix_fd );
3603 set_error( sock_get_ntstatus( errno ));
3604 return NULL;
3605 }
3606 if (!(ifchange = alloc_object( &ifchange_ops )))
3607 {
3608 close( unix_fd );
3609 set_error( STATUS_NO_MEMORY );
3610 return NULL;
3611 }
3612 list_init( &ifchange->sockets );
3613 if (!(ifchange->fd = create_anonymous_fd( &ifchange_fd_ops, unix_fd, &ifchange->obj, 0 )))
3614 {
3615 release_object( ifchange );
3616 set_error( STATUS_NO_MEMORY );
3617 return NULL;
3618 }
3619 set_fd_events( ifchange->fd, POLLIN ); /* enable read wakeup on the file descriptor */
3620
3621 /* the ifchange object is now successfully configured */
3622 ifchange_object = &ifchange->obj;
3623 return &ifchange->obj;
3624 #else
3625 set_error( STATUS_NOT_SUPPORTED );
3626 return NULL;
3627 #endif
3628 }
3629
3630 /* add the socket to the interface change notification list */
3631 static void ifchange_add_sock( struct object *obj, struct sock *sock )
3632 {
3633 #ifdef HAVE_LINUX_RTNETLINK_H
3634 struct ifchange *ifchange = (struct ifchange *)obj;
3635
3636 list_add_tail( &ifchange->sockets, &sock->ifchange_entry );
3637 #endif
3638 }
3639
3640 /* create a new ifchange queue for a specific socket or, if one already exists, reuse the existing one */
3641 static struct object *sock_get_ifchange( struct sock *sock )
3642 {
3643 struct object *ifchange;
3644
3645 if (sock->ifchange_obj) /* reuse existing ifchange_obj for this socket */
3646 return sock->ifchange_obj;
3647
3648 if (!(ifchange = get_ifchange()))
3649 return NULL;
3650
3651 /* add the socket to the ifchange notification list */
3652 ifchange_add_sock( ifchange, sock );
3653 sock->ifchange_obj = ifchange;
3654 return ifchange;
3655 }
3656
3657 /* destroy an existing ifchange queue for a specific socket */
3658 static void sock_release_ifchange( struct sock *sock )
3659 {
3660 if (sock->ifchange_obj)
3661 {
3662 list_remove( &sock->ifchange_entry );
3663 release_object( sock->ifchange_obj );
3664 sock->ifchange_obj = NULL;
3665 }
3666 }
3667
3668 static void socket_device_dump( struct object *obj, int verbose );
3669 static struct object *socket_device_lookup_name( struct object *obj, struct unicode_str *name,
3670 unsigned int attr, struct object *root );
3671 static struct object *socket_device_open_file( struct object *obj, unsigned int access,
3672 unsigned int sharing, unsigned int options );
3673
3674 static const struct object_ops socket_device_ops =
3675 {
3676 sizeof(struct object), /* size */
3677 &device_type, /* type */
3678 socket_device_dump, /* dump */
3679 no_add_queue, /* add_queue */
3680 NULL, /* remove_queue */
3681 NULL, /* signaled */
3682 no_satisfied, /* satisfied */
3683 no_signal, /* signal */
3684 no_get_fd, /* get_fd */
3685 default_map_access, /* map_access */
3686 default_get_sd, /* get_sd */
3687 default_set_sd, /* set_sd */
3688 default_get_full_name, /* get_full_name */
3689 socket_device_lookup_name, /* lookup_name */
3690 directory_link_name, /* link_name */
3691 default_unlink_name, /* unlink_name */
3692 socket_device_open_file, /* open_file */
3693 no_kernel_obj_list, /* get_kernel_obj_list */
3694 no_close_handle, /* close_handle */
3695 no_destroy /* destroy */
3696 };
3697
3698 static void socket_device_dump( struct object *obj, int verbose )
3699 {
3700 fputs( "Socket device\n", stderr );
3701 }
3702
3703 static struct object *socket_device_lookup_name( struct object *obj, struct unicode_str *name,
3704 unsigned int attr, struct object *root )
3705 {
3706 if (name) name->len = 0;
3707 return NULL;
3708 }
3709
3710 static struct object *socket_device_open_file( struct object *obj, unsigned int access,
3711 unsigned int sharing, unsigned int options )
3712 {
3713 struct sock *sock;
3714
3715 if (!(sock = create_socket())) return NULL;
3716 if (!(sock->fd = alloc_pseudo_fd( &sock_fd_ops, &sock->obj, options )))
3717 {
3718 release_object( sock );
3719 return NULL;
3720 }
3721 return &sock->obj;
3722 }
3723
3724 struct object *create_socket_device( struct object *root, const struct unicode_str *name,
3725 unsigned int attr, const struct security_descriptor *sd )
3726 {
3727 return create_named_object( root, &socket_device_ops, name, attr, sd );
3728 }
3729
3730 DECL_HANDLER(recv_socket)
3731 {
3732 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->async.handle, 0, &sock_ops );
3733 unsigned int status = STATUS_PENDING;
3734 timeout_t timeout = 0;
3735 struct async *async;
3736 struct fd *fd;
3737
3738 if (!sock) return;
3739 fd = sock->fd;
3740
3741 if (!req->force_async && !sock->nonblocking && is_fd_overlapped( fd ))
3742 timeout = (timeout_t)sock->rcvtimeo * -10000;
3743
3744 if (sock->rd_shutdown) status = STATUS_PIPE_DISCONNECTED;
3745 else if (!async_queued( &sock->read_q ))
3746 {
3747 /* If read_q is not empty, we cannot really tell if the already queued
3748 * asyncs will not consume all available data; if there's no data
3749 * available, the current request won't be immediately satiable.
3750 */
3751 if ((!req->force_async && sock->nonblocking) ||
3752 check_fd_events( sock->fd, req->oob && !is_oobinline( sock ) ? POLLPRI : POLLIN ))
3753 {
3754 /* Give the client opportunity to complete synchronously.
3755 * If it turns out that the I/O request is not actually immediately satiable,
3756 * the client may then choose to re-queue the async (with STATUS_PENDING).
3757 *
3758 * Note: If the nonblocking flag is set, we don't poll the socket
3759 * here and always opt for synchronous completion first. This is
3760 * because the application has probably seen POLLIN already from a
3761 * preceding select()/poll() call before it requested to receive
3762 * data.
3763 */
3764 status = STATUS_ALERTED;
3765 }
3766 }
3767
3768 if (status == STATUS_PENDING && !req->force_async && sock->nonblocking)
3769 status = STATUS_DEVICE_NOT_READY;
3770
3771 sock->pending_events &= ~(req->oob ? AFD_POLL_OOB : AFD_POLL_READ);
3772 sock->reported_events &= ~(req->oob ? AFD_POLL_OOB : AFD_POLL_READ);
3773
3774 if ((async = create_request_async( fd, get_fd_comp_flags( fd ), &req->async )))
3775 {
3776 set_error( status );
3777
3778 if (timeout)
3779 async_set_timeout( async, timeout, STATUS_IO_TIMEOUT );
3780
3781 if (status == STATUS_PENDING || status == STATUS_ALERTED)
3782 queue_async( &sock->read_q, async );
3783
3784 /* always reselect; we changed reported_events above */
3785 sock_reselect( sock );
3786
3787 reply->wait = async_handoff( async, NULL, 0 );
3788 reply->options = get_fd_options( fd );
3789 reply->nonblocking = sock->nonblocking;
3790 release_object( async );
3791 }
3792 release_object( sock );
3793 }
3794
3795 static void send_socket_completion_callback( void *private )
3796 {
3797 struct send_req *send_req = private;
3798 struct iosb *iosb = send_req->iosb;
3799 struct sock *sock = send_req->sock;
3800
3801 if (iosb->status != STATUS_SUCCESS)
3802 {
3803 /* send() calls only clear and reselect events if unsuccessful. */
3804 sock->pending_events &= ~AFD_POLL_WRITE;
3805 sock->reported_events &= ~AFD_POLL_WRITE;
3806 sock_reselect( sock );
3807 }
3808
3809 release_object( iosb );
3810 release_object( sock );
3811 free( send_req );
3812 }
3813
3814 DECL_HANDLER(send_socket)
3815 {
3816 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->async.handle, 0, &sock_ops );
3817 unsigned int status = STATUS_PENDING;
3818 timeout_t timeout = 0;
3819 struct async *async;
3820 struct fd *fd;
3821 int bind_errno = 0;
3822
3823 if (!sock) return;
3824 fd = sock->fd;
3825
3826 if (sock->type == WS_SOCK_DGRAM && !sock->bound)
3827 {
3828 union unix_sockaddr unix_addr;
3829 socklen_t unix_len;
3830 int unix_fd = get_unix_fd( fd );
3831
3832 unix_len = get_unix_sockaddr_any( &unix_addr, sock->family );
3833 if (bind( unix_fd, &unix_addr.addr, unix_len ) < 0)
3834 bind_errno = errno;
3835
3836 if (getsockname( unix_fd, &unix_addr.addr, &unix_len ) >= 0)
3837 {
3838 sock->addr_len = sockaddr_from_unix( &unix_addr, &sock->addr.addr, sizeof(sock->addr) );
3839 sock->bound = 1;
3840 }
3841 else if (!bind_errno) bind_errno = errno;
3842 }
3843
3844 if (!req->force_async && !sock->nonblocking && is_fd_overlapped( fd ))
3845 timeout = (timeout_t)sock->sndtimeo * -10000;
3846
3847 if (bind_errno) status = sock_get_ntstatus( bind_errno );
3848 else if (sock->wr_shutdown) status = STATUS_PIPE_DISCONNECTED;
3849 else if (!async_queued( &sock->write_q ))
3850 {
3851 /* If write_q is not empty, we cannot really tell if the already queued
3852 * asyncs will not consume all available space; if there's no space
3853 * available, the current request won't be immediately satiable.
3854 */
3855 if ((!req->force_async && sock->nonblocking) || check_fd_events( sock->fd, POLLOUT ))
3856 {
3857 /* Give the client opportunity to complete synchronously.
3858 * If it turns out that the I/O request is not actually immediately satiable,
3859 * the client may then choose to re-queue the async (with STATUS_PENDING).
3860 *
3861 * Note: If the nonblocking flag is set, we don't poll the socket
3862 * here and always opt for synchronous completion first. This is
3863 * because the application has probably seen POLLOUT already from a
3864 * preceding select()/poll() call before it requested to send data.
3865 *
3866 * Furthermore, some applications expect that any send() call on a
3867 * socket that has indicated POLLOUT beforehand never fails with
3868 * WSAEWOULDBLOCK. It's possible that Linux poll() may yield
3869 * POLLOUT on the first call but not the second, even if no send()
3870 * call has been made in the meanwhile. This can happen for a
3871 * number of reasons; for example, TCP fragmentation may consume
3872 * extra buffer space for each packet that has been split out, or
3873 * the TCP/IP networking stack may decide to shrink the send buffer
3874 * due to memory pressure.
3875 */
3876 status = STATUS_ALERTED;
3877 }
3878 }
3879
3880 if (status == STATUS_PENDING && !req->force_async && sock->nonblocking)
3881 status = STATUS_DEVICE_NOT_READY;
3882
3883 if ((async = create_request_async( fd, get_fd_comp_flags( fd ), &req->async )))
3884 {
3885 struct send_req *send_req;
3886 struct iosb *iosb = async_get_iosb( async );
3887
3888 if ((send_req = mem_alloc( sizeof(*send_req) )))
3889 {
3890 send_req->iosb = (struct iosb *)grab_object( iosb );
3891 send_req->sock = (struct sock *)grab_object( sock );
3892 async_set_completion_callback( async, send_socket_completion_callback, send_req );
3893 }
3894 else if (status == STATUS_PENDING || status == STATUS_DEVICE_NOT_READY)
3895 status = STATUS_NO_MEMORY;
3896
3897 release_object( iosb );
3898
3899 set_error( status );
3900
3901 if (timeout)
3902 async_set_timeout( async, timeout, STATUS_IO_TIMEOUT );
3903
3904 if (status == STATUS_PENDING || status == STATUS_ALERTED)
3905 {
3906 queue_async( &sock->write_q, async );
3907 sock_reselect( sock );
3908 }
3909
3910 reply->wait = async_handoff( async, NULL, 0 );
3911 reply->options = get_fd_options( fd );
3912 reply->nonblocking = sock->nonblocking;
3913 release_object( async );
3914 }
3915 release_object( sock );
3916 }
3917
3918 DECL_HANDLER(socket_get_events)
3919 {
3920 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->handle, 0, &sock_ops );
3921 unsigned int status[13];
3922 struct event *event = NULL;
3923 unsigned int i;
3924
3925 if (get_reply_max_size() < sizeof(status))
3926 {
3927 set_error( STATUS_INVALID_PARAMETER );
3928 return;
3929 }
3930
3931 if (!sock) return;
3932
3933 if (req->event)
3934 {
3935 if (!(event = get_event_obj( current->process, req->event, EVENT_MODIFY_STATE )))
3936 {
3937 release_object( sock );
3938 return;
3939 }
3940 }
3941
3942 reply->flags = sock->pending_events & sock->mask;
3943 for (i = 0; i < ARRAY_SIZE( status ); ++i)
3944 status[i] = sock_get_ntstatus( sock->errors[i] );
3945
3946 sock->pending_events &= ~sock->mask;
3947 sock_reselect( sock );
3948
3949 if (event)
3950 {
3951 reset_event( event );
3952 release_object( event );
3953 }
3954
3955 set_reply_data( status, sizeof(status) );
3956
3957 release_object( sock );
3958 }
3959
3960 DECL_HANDLER(socket_send_icmp_id)
3961 {
3962 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->handle, 0, &sock_ops );
3963
3964 if (!sock) return;
3965
3966 if (sock->icmp_fixup_data_len == MAX_ICMP_HISTORY_LENGTH)
3967 {
3968 memmove( sock->icmp_fixup_data, sock->icmp_fixup_data + 1,
3969 sizeof(*sock->icmp_fixup_data) * (MAX_ICMP_HISTORY_LENGTH - 1) );
3970 --sock->icmp_fixup_data_len;
3971 }
3972
3973 sock->icmp_fixup_data[sock->icmp_fixup_data_len].icmp_id = req->icmp_id;
3974 sock->icmp_fixup_data[sock->icmp_fixup_data_len].icmp_seq = req->icmp_seq;
3975 ++sock->icmp_fixup_data_len;
3976
3977 release_object( sock );
3978 }
3979
3980 DECL_HANDLER(socket_get_icmp_id)
3981 {
3982 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->handle, 0, &sock_ops );
3983 unsigned int i;
3984
3985 if (!sock) return;
3986
3987 for (i = 0; i < sock->icmp_fixup_data_len; ++i)
3988 {
3989 if (sock->icmp_fixup_data[i].icmp_seq == req->icmp_seq)
3990 {
3991 reply->icmp_id = sock->icmp_fixup_data[i].icmp_id;
3992 --sock->icmp_fixup_data_len;
3993 memmove( &sock->icmp_fixup_data[i], &sock->icmp_fixup_data[i + 1],
3994 (sock->icmp_fixup_data_len - i) * sizeof(*sock->icmp_fixup_data) );
3995 release_object( sock );
3996 return;
3997 }
3998 }
3999
4000 set_error( STATUS_NOT_FOUND );
4001 release_object( sock );
4002 }
Windows API implementation