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user32: Uppercase the RawInput device names sans the GUID.
[wine.git] / server / sock.c
blob2df4f3d30560f40c2211baff03acada35d95c2ff
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 #include <poll.h>
43 #include <sys/time.h>
44 #include <sys/types.h>
45 #include <sys/socket.h>
46 #include <sys/ioctl.h>
47 #ifdef HAVE_SYS_FILIO_H
48 # include <sys/filio.h>
49 #endif
50 #include <time.h>
51 #include <unistd.h>
52 #include <limits.h>
53 #ifdef HAVE_LINUX_FILTER_H
54 # include <linux/filter.h>
55 #endif
56 #ifdef HAVE_LINUX_RTNETLINK_H
57 # include <linux/rtnetlink.h>
58 #endif
59
60 #ifdef HAVE_NETIPX_IPX_H
61 # include <netipx/ipx.h>
62 #elif defined(HAVE_LINUX_IPX_H)
63 # ifdef HAVE_ASM_TYPES_H
64 # include <asm/types.h>
65 # endif
66 # ifdef HAVE_LINUX_TYPES_H
67 # include <linux/types.h>
68 # endif
69 # include <linux/ipx.h>
70 #endif
71 #if defined(SOL_IPX) || defined(SO_DEFAULT_HEADERS)
72 # define HAS_IPX
73 #endif
74
75 #ifdef HAVE_LINUX_IRDA_H
76 # ifdef HAVE_LINUX_TYPES_H
77 # include <linux/types.h>
78 # endif
79 # include <linux/irda.h>
80 # define HAS_IRDA
81 #endif
82
83 #include "ntstatus.h"
84 #define WIN32_NO_STATUS
85 #include "windef.h"
86 #include "winternl.h"
87 #include "winerror.h"
88 #define USE_WS_PREFIX
89 #include "winsock2.h"
90 #include "ws2tcpip.h"
91 #include "wsipx.h"
92 #include "af_irda.h"
93 #include "wine/afd.h"
94
95 #include "process.h"
96 #include "file.h"
97 #include "handle.h"
98 #include "thread.h"
99 #include "request.h"
100 #include "user.h"
101
102 #if defined(linux) && !defined(IP_UNICAST_IF)
103 #define IP_UNICAST_IF 50
104 #endif
105
106 static const char magic_loopback_addr[] = {127, 12, 34, 56};
107
108 union win_sockaddr
109 {
110 struct WS_sockaddr addr;
111 struct WS_sockaddr_in in;
112 struct WS_sockaddr_in6 in6;
113 struct WS_sockaddr_ipx ipx;
114 SOCKADDR_IRDA irda;
115 };
116
117 static struct list poll_list = LIST_INIT( poll_list );
118
119 struct poll_req
120 {
121 struct list entry;
122 struct async *async;
123 struct iosb *iosb;
124 struct timeout_user *timeout;
125 timeout_t orig_timeout;
126 int exclusive;
127 unsigned int count;
128 struct
129 {
130 struct sock *sock;
131 int mask;
132 obj_handle_t handle;
133 int flags;
134 unsigned int status;
135 } sockets[1];
136 };
137
138 struct accept_req
139 {
140 struct list entry;
141 struct async *async;
142 struct iosb *iosb;
143 struct sock *sock, *acceptsock;
144 int accepted;
145 unsigned int recv_len, local_len;
146 };
147
148 struct connect_req
149 {
150 struct async *async;
151 struct iosb *iosb;
152 struct sock *sock;
153 unsigned int addr_len, send_len, send_cursor;
154 };
155
156 enum connection_state
157 {
158 SOCK_LISTENING,
159 SOCK_UNCONNECTED,
160 SOCK_CONNECTING,
161 SOCK_CONNECTED,
162 SOCK_CONNECTIONLESS,
163 };
164
165 struct sock
166 {
167 struct object obj; /* object header */
168 struct fd *fd; /* socket file descriptor */
169 enum connection_state state; /* connection state */
170 unsigned int mask; /* event mask */
171 /* pending AFD_POLL_* events which have not yet been reported to the application */
172 unsigned int pending_events;
173 /* AFD_POLL_* events which have already been reported and should not be
174 * selected for again until reset by a relevant call.
175 *
176 * For example, if AFD_POLL_READ is set here and not in pending_events, it
177 * has already been reported and consumed, and we should not report it
178 * again, even if POLLIN is signaled, until it is reset by e.g recv().
179 *
180 * If an event has been signaled and not consumed yet, it will be set in
181 * both pending_events and reported_events (as we should only ever report
182 * any event once until it is reset.) */
183 unsigned int reported_events;
184 unsigned int flags; /* socket flags */
185 unsigned short proto; /* socket protocol */
186 unsigned short type; /* socket type */
187 unsigned short family; /* socket family */
188 struct event *event; /* event object */
189 user_handle_t window; /* window to send the message to */
190 unsigned int message; /* message to send */
191 obj_handle_t wparam; /* message wparam (socket handle) */
192 int errors[AFD_POLL_BIT_COUNT]; /* event errors */
193 timeout_t connect_time;/* time the socket was connected */
194 struct sock *deferred; /* socket that waits for a deferred accept */
195 struct async_queue read_q; /* queue for asynchronous reads */
196 struct async_queue write_q; /* queue for asynchronous writes */
197 struct async_queue ifchange_q; /* queue for interface change notifications */
198 struct async_queue accept_q; /* queue for asynchronous accepts */
199 struct async_queue connect_q; /* queue for asynchronous connects */
200 struct async_queue poll_q; /* queue for asynchronous polls */
201 struct object *ifchange_obj; /* the interface change notification object */
202 struct list ifchange_entry; /* entry in ifchange notification list */
203 struct list accept_list; /* list of pending accept requests */
204 struct accept_req *accept_recv_req; /* pending accept-into request which will recv on this socket */
205 struct connect_req *connect_req; /* pending connection request */
206 struct poll_req *main_poll; /* main poll */
207 union win_sockaddr addr; /* socket name */
208 int addr_len; /* socket name length */
209 unsigned int rcvbuf; /* advisory recv buffer size */
210 unsigned int sndbuf; /* advisory send buffer size */
211 unsigned int rcvtimeo; /* receive timeout in ms */
212 unsigned int sndtimeo; /* send timeout in ms */
213 unsigned int rd_shutdown : 1; /* is the read end shut down? */
214 unsigned int wr_shutdown : 1; /* is the write end shut down? */
215 unsigned int wr_shutdown_pending : 1; /* is a write shutdown pending? */
216 unsigned int hangup : 1; /* has the read end received a hangup? */
217 unsigned int aborted : 1; /* did we get a POLLERR or irregular POLLHUP? */
218 unsigned int nonblocking : 1; /* is the socket nonblocking? */
219 unsigned int bound : 1; /* is the socket bound? */
220 };
221
222 static void sock_dump( struct object *obj, int verbose );
223 static struct fd *sock_get_fd( struct object *obj );
224 static int sock_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
225 static void sock_destroy( struct object *obj );
226 static struct object *sock_get_ifchange( struct sock *sock );
227 static void sock_release_ifchange( struct sock *sock );
228
229 static int sock_get_poll_events( struct fd *fd );
230 static void sock_poll_event( struct fd *fd, int event );
231 static enum server_fd_type sock_get_fd_type( struct fd *fd );
232 static void sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
233 static void sock_cancel_async( struct fd *fd, struct async *async );
234 static void sock_queue_async( struct fd *fd, struct async *async, int type, int count );
235 static void sock_reselect_async( struct fd *fd, struct async_queue *queue );
236
237 static int accept_into_socket( struct sock *sock, struct sock *acceptsock );
238 static struct sock *accept_socket( struct sock *sock );
239 static int sock_get_ntstatus( int err );
240 static unsigned int sock_get_error( int err );
241 static void poll_socket( struct sock *poll_sock, struct async *async, int exclusive, timeout_t timeout,
242 unsigned int count, const struct afd_poll_socket_64 *sockets );
243
244 static const struct object_ops sock_ops =
245 {
246 sizeof(struct sock), /* size */
247 &file_type, /* type */
248 sock_dump, /* dump */
249 add_queue, /* add_queue */
250 remove_queue, /* remove_queue */
251 default_fd_signaled, /* signaled */
252 no_satisfied, /* satisfied */
253 no_signal, /* signal */
254 sock_get_fd, /* get_fd */
255 default_map_access, /* map_access */
256 default_get_sd, /* get_sd */
257 default_set_sd, /* set_sd */
258 no_get_full_name, /* get_full_name */
259 no_lookup_name, /* lookup_name */
260 no_link_name, /* link_name */
261 NULL, /* unlink_name */
262 no_open_file, /* open_file */
263 no_kernel_obj_list, /* get_kernel_obj_list */
264 sock_close_handle, /* close_handle */
265 sock_destroy /* destroy */
266 };
267
268 static const struct fd_ops sock_fd_ops =
269 {
270 sock_get_poll_events, /* get_poll_events */
271 sock_poll_event, /* poll_event */
272 sock_get_fd_type, /* get_fd_type */
273 no_fd_read, /* read */
274 no_fd_write, /* write */
275 no_fd_flush, /* flush */
276 default_fd_get_file_info, /* get_file_info */
277 no_fd_get_volume_info, /* get_volume_info */
278 sock_ioctl, /* ioctl */
279 sock_cancel_async, /* cancel_async */
280 sock_queue_async, /* queue_async */
281 sock_reselect_async /* reselect_async */
282 };
283
284 union unix_sockaddr
285 {
286 struct sockaddr addr;
287 struct sockaddr_in in;
288 struct sockaddr_in6 in6;
289 #ifdef HAS_IPX
290 struct sockaddr_ipx ipx;
291 #endif
292 #ifdef HAS_IRDA
293 struct sockaddr_irda irda;
294 #endif
295 };
296
297 static int sockaddr_from_unix( const union unix_sockaddr *uaddr, struct WS_sockaddr *wsaddr, socklen_t wsaddrlen )
298 {
299 memset( wsaddr, 0, wsaddrlen );
300
301 switch (uaddr->addr.sa_family)
302 {
303 case AF_INET:
304 {
305 struct WS_sockaddr_in win = {0};
306
307 if (wsaddrlen < sizeof(win)) return -1;
308 win.sin_family = WS_AF_INET;
309 win.sin_port = uaddr->in.sin_port;
310 memcpy( &win.sin_addr, &uaddr->in.sin_addr, sizeof(win.sin_addr) );
311 memcpy( wsaddr, &win, sizeof(win) );
312 return sizeof(win);
313 }
314
315 case AF_INET6:
316 {
317 struct WS_sockaddr_in6 win = {0};
318
319 if (wsaddrlen < sizeof(win)) return -1;
320 win.sin6_family = WS_AF_INET6;
321 win.sin6_port = uaddr->in6.sin6_port;
322 win.sin6_flowinfo = uaddr->in6.sin6_flowinfo;
323 memcpy( &win.sin6_addr, &uaddr->in6.sin6_addr, sizeof(win.sin6_addr) );
324 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
325 win.sin6_scope_id = uaddr->in6.sin6_scope_id;
326 #endif
327 memcpy( wsaddr, &win, sizeof(win) );
328 return sizeof(win);
329 }
330
331 #ifdef HAS_IPX
332 case AF_IPX:
333 {
334 struct WS_sockaddr_ipx win = {0};
335
336 if (wsaddrlen < sizeof(win)) return -1;
337 win.sa_family = WS_AF_IPX;
338 memcpy( win.sa_netnum, &uaddr->ipx.sipx_network, sizeof(win.sa_netnum) );
339 memcpy( win.sa_nodenum, &uaddr->ipx.sipx_node, sizeof(win.sa_nodenum) );
340 win.sa_socket = uaddr->ipx.sipx_port;
341 memcpy( wsaddr, &win, sizeof(win) );
342 return sizeof(win);
343 }
344 #endif
345
346 #ifdef HAS_IRDA
347 case AF_IRDA:
348 {
349 SOCKADDR_IRDA win;
350
351 if (wsaddrlen < sizeof(win)) return -1;
352 win.irdaAddressFamily = WS_AF_IRDA;
353 memcpy( win.irdaDeviceID, &uaddr->irda.sir_addr, sizeof(win.irdaDeviceID) );
354 if (uaddr->irda.sir_lsap_sel != LSAP_ANY)
355 snprintf( win.irdaServiceName, sizeof(win.irdaServiceName), "LSAP-SEL%u", uaddr->irda.sir_lsap_sel );
356 else
357 memcpy( win.irdaServiceName, uaddr->irda.sir_name, sizeof(win.irdaServiceName) );
358 memcpy( wsaddr, &win, sizeof(win) );
359 return sizeof(win);
360 }
361 #endif
362
363 case AF_UNSPEC:
364 return 0;
365
366 default:
367 return -1;
368
369 }
370 }
371
372 static socklen_t sockaddr_to_unix( const struct WS_sockaddr *wsaddr, int wsaddrlen, union unix_sockaddr *uaddr )
373 {
374 memset( uaddr, 0, sizeof(*uaddr) );
375
376 switch (wsaddr->sa_family)
377 {
378 case WS_AF_INET:
379 {
380 struct WS_sockaddr_in win = {0};
381
382 if (wsaddrlen < sizeof(win)) return 0;
383 memcpy( &win, wsaddr, sizeof(win) );
384 uaddr->in.sin_family = AF_INET;
385 uaddr->in.sin_port = win.sin_port;
386 memcpy( &uaddr->in.sin_addr, &win.sin_addr, sizeof(win.sin_addr) );
387 return sizeof(uaddr->in);
388 }
389
390 case WS_AF_INET6:
391 {
392 struct WS_sockaddr_in6 win = {0};
393
394 if (wsaddrlen < sizeof(win)) return 0;
395 memcpy( &win, wsaddr, sizeof(win) );
396 uaddr->in6.sin6_family = AF_INET6;
397 uaddr->in6.sin6_port = win.sin6_port;
398 uaddr->in6.sin6_flowinfo = win.sin6_flowinfo;
399 memcpy( &uaddr->in6.sin6_addr, &win.sin6_addr, sizeof(win.sin6_addr) );
400 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
401 uaddr->in6.sin6_scope_id = win.sin6_scope_id;
402 #endif
403 return sizeof(uaddr->in6);
404 }
405
406 #ifdef HAS_IPX
407 case WS_AF_IPX:
408 {
409 struct WS_sockaddr_ipx win = {0};
410
411 if (wsaddrlen < sizeof(win)) return 0;
412 memcpy( &win, wsaddr, sizeof(win) );
413 uaddr->ipx.sipx_family = AF_IPX;
414 memcpy( &uaddr->ipx.sipx_network, win.sa_netnum, sizeof(win.sa_netnum) );
415 memcpy( &uaddr->ipx.sipx_node, win.sa_nodenum, sizeof(win.sa_nodenum) );
416 uaddr->ipx.sipx_port = win.sa_socket;
417 return sizeof(uaddr->ipx);
418 }
419 #endif
420
421 #ifdef HAS_IRDA
422 case WS_AF_IRDA:
423 {
424 SOCKADDR_IRDA win = {0};
425 unsigned int lsap_sel;
426
427 if (wsaddrlen < sizeof(win)) return 0;
428 memcpy( &win, wsaddr, sizeof(win) );
429 uaddr->irda.sir_family = AF_IRDA;
430 if (sscanf( win.irdaServiceName, "LSAP-SEL%u", &lsap_sel ) == 1)
431 uaddr->irda.sir_lsap_sel = lsap_sel;
432 else
433 {
434 uaddr->irda.sir_lsap_sel = LSAP_ANY;
435 memcpy( uaddr->irda.sir_name, win.irdaServiceName, sizeof(win.irdaServiceName) );
436 }
437 memcpy( &uaddr->irda.sir_addr, win.irdaDeviceID, sizeof(win.irdaDeviceID) );
438 return sizeof(uaddr->irda);
439 }
440 #endif
441
442 case WS_AF_UNSPEC:
443 switch (wsaddrlen)
444 {
445 default: /* likely an ipv4 address */
446 case sizeof(struct WS_sockaddr_in):
447 return sizeof(uaddr->in);
448
449 #ifdef HAS_IPX
450 case sizeof(struct WS_sockaddr_ipx):
451 return sizeof(uaddr->ipx);
452 #endif
453
454 #ifdef HAS_IRDA
455 case sizeof(SOCKADDR_IRDA):
456 return sizeof(uaddr->irda);
457 #endif
458
459 case sizeof(struct WS_sockaddr_in6):
460 return sizeof(uaddr->in6);
461 }
462
463 default:
464 return 0;
465 }
466 }
467
468 /* some events are generated at the same time but must be sent in a particular
469 * order (e.g. CONNECT must be sent before READ) */
470 static const enum afd_poll_bit event_bitorder[] =
471 {
472 AFD_POLL_BIT_CONNECT,
473 AFD_POLL_BIT_CONNECT_ERR,
474 AFD_POLL_BIT_ACCEPT,
475 AFD_POLL_BIT_OOB,
476 AFD_POLL_BIT_WRITE,
477 AFD_POLL_BIT_READ,
478 AFD_POLL_BIT_RESET,
479 AFD_POLL_BIT_HUP,
480 AFD_POLL_BIT_CLOSE,
481 };
482
483 typedef enum {
484 SOCK_SHUTDOWN_ERROR = -1,
485 SOCK_SHUTDOWN_EOF = 0,
486 SOCK_SHUTDOWN_POLLHUP = 1
487 } sock_shutdown_t;
488
489 static sock_shutdown_t sock_shutdown_type = SOCK_SHUTDOWN_ERROR;
490
491 static sock_shutdown_t sock_check_pollhup(void)
492 {
493 sock_shutdown_t ret = SOCK_SHUTDOWN_ERROR;
494 int fd[2], n;
495 struct pollfd pfd;
496 char dummy;
497
498 if ( socketpair( AF_UNIX, SOCK_STREAM, 0, fd ) ) return ret;
499 if ( shutdown( fd[0], 1 ) ) goto out;
500
501 pfd.fd = fd[1];
502 pfd.events = POLLIN;
503 pfd.revents = 0;
504
505 /* Solaris' poll() sometimes returns nothing if given a 0ms timeout here */
506 n = poll( &pfd, 1, 1 );
507 if ( n != 1 ) goto out; /* error or timeout */
508 if ( pfd.revents & POLLHUP )
509 ret = SOCK_SHUTDOWN_POLLHUP;
510 else if ( pfd.revents & POLLIN &&
511 read( fd[1], &dummy, 1 ) == 0 )
512 ret = SOCK_SHUTDOWN_EOF;
513
514 out:
515 close( fd[0] );
516 close( fd[1] );
517 return ret;
518 }
519
520 void sock_init(void)
521 {
522 sock_shutdown_type = sock_check_pollhup();
523
524 switch ( sock_shutdown_type )
525 {
526 case SOCK_SHUTDOWN_EOF:
527 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes EOF\n" );
528 break;
529 case SOCK_SHUTDOWN_POLLHUP:
530 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes POLLHUP\n" );
531 break;
532 default:
533 fprintf( stderr, "sock_init: ERROR in sock_check_pollhup()\n" );
534 sock_shutdown_type = SOCK_SHUTDOWN_EOF;
535 }
536 }
537
538 static int sock_reselect( struct sock *sock )
539 {
540 int ev = sock_get_poll_events( sock->fd );
541
542 if (debug_level)
543 fprintf(stderr,"sock_reselect(%p): new mask %x\n", sock, ev);
544
545 set_fd_events( sock->fd, ev );
546 return ev;
547 }
548
549 static unsigned int afd_poll_flag_to_win32( unsigned int flags )
550 {
551 static const unsigned int map[] =
552 {
553 FD_READ, /* READ */
554 FD_OOB, /* OOB */
555 FD_WRITE, /* WRITE */
556 FD_CLOSE, /* HUP */
557 FD_CLOSE, /* RESET */
558 0, /* CLOSE */
559 FD_CONNECT, /* CONNECT */
560 FD_ACCEPT, /* ACCEPT */
561 FD_CONNECT, /* CONNECT_ERR */
562 };
563
564 unsigned int i, ret = 0;
565
566 for (i = 0; i < ARRAY_SIZE(map); ++i)
567 {
568 if (flags & (1 << i)) ret |= map[i];
569 }
570
571 return ret;
572 }
573
574 /* wake anybody waiting on the socket event or send the associated message */
575 static void sock_wake_up( struct sock *sock )
576 {
577 unsigned int events = sock->pending_events & sock->mask;
578 int i;
579
580 if (sock->event)
581 {
582 if (debug_level) fprintf(stderr, "signalling events %x ptr %p\n", events, sock->event );
583 if (events)
584 set_event( sock->event );
585 }
586 if (sock->window)
587 {
588 if (debug_level) fprintf(stderr, "signalling events %x win %08x\n", events, sock->window );
589 for (i = 0; i < ARRAY_SIZE(event_bitorder); i++)
590 {
591 enum afd_poll_bit event = event_bitorder[i];
592 if (events & (1 << event))
593 {
594 lparam_t lparam = afd_poll_flag_to_win32(1 << event) | (sock_get_error( sock->errors[event] ) << 16);
595 post_message( sock->window, sock->message, sock->wparam, lparam );
596 }
597 }
598 sock->pending_events = 0;
599 sock_reselect( sock );
600 }
601 }
602
603 static inline int sock_error( struct fd *fd )
604 {
605 unsigned int optval = 0;
606 socklen_t optlen = sizeof(optval);
607
608 getsockopt( get_unix_fd(fd), SOL_SOCKET, SO_ERROR, (void *) &optval, &optlen);
609 return optval;
610 }
611
612 static void free_accept_req( void *private )
613 {
614 struct accept_req *req = private;
615 list_remove( &req->entry );
616 if (req->acceptsock)
617 {
618 req->acceptsock->accept_recv_req = NULL;
619 release_object( req->acceptsock );
620 }
621 release_object( req->async );
622 release_object( req->iosb );
623 release_object( req->sock );
624 free( req );
625 }
626
627 static void fill_accept_output( struct accept_req *req )
628 {
629 const data_size_t out_size = req->iosb->out_size;
630 struct async *async = req->async;
631 union unix_sockaddr unix_addr;
632 struct WS_sockaddr *win_addr;
633 unsigned int remote_len;
634 socklen_t unix_len;
635 int fd, size = 0;
636 char *out_data;
637 int win_len;
638
639 if (!(out_data = mem_alloc( out_size )))
640 {
641 async_terminate( async, get_error() );
642 return;
643 }
644
645 fd = get_unix_fd( req->acceptsock->fd );
646
647 if (req->recv_len && (size = recv( fd, out_data, req->recv_len, 0 )) < 0)
648 {
649 if (!req->accepted && errno == EWOULDBLOCK)
650 {
651 req->accepted = 1;
652 sock_reselect( req->acceptsock );
653 return;
654 }
655
656 async_terminate( async, sock_get_ntstatus( errno ) );
657 free( out_data );
658 return;
659 }
660
661 if (req->local_len)
662 {
663 if (req->local_len < sizeof(int))
664 {
665 async_terminate( async, STATUS_BUFFER_TOO_SMALL );
666 free( out_data );
667 return;
668 }
669
670 unix_len = sizeof(unix_addr);
671 win_addr = (struct WS_sockaddr *)(out_data + req->recv_len + sizeof(int));
672 if (getsockname( fd, &unix_addr.addr, &unix_len ) < 0 ||
673 (win_len = sockaddr_from_unix( &unix_addr, win_addr, req->local_len - sizeof(int) )) < 0)
674 {
675 async_terminate( async, sock_get_ntstatus( errno ) );
676 free( out_data );
677 return;
678 }
679 memcpy( out_data + req->recv_len, &win_len, sizeof(int) );
680 }
681
682 unix_len = sizeof(unix_addr);
683 win_addr = (struct WS_sockaddr *)(out_data + req->recv_len + req->local_len + sizeof(int));
684 remote_len = out_size - req->recv_len - req->local_len;
685 if (getpeername( fd, &unix_addr.addr, &unix_len ) < 0 ||
686 (win_len = sockaddr_from_unix( &unix_addr, win_addr, remote_len - sizeof(int) )) < 0)
687 {
688 async_terminate( async, sock_get_ntstatus( errno ) );
689 free( out_data );
690 return;
691 }
692 memcpy( out_data + req->recv_len + req->local_len, &win_len, sizeof(int) );
693
694 async_request_complete( req->async, STATUS_SUCCESS, size, out_size, out_data );
695 }
696
697 static void complete_async_accept( struct sock *sock, struct accept_req *req )
698 {
699 struct sock *acceptsock = req->acceptsock;
700 struct async *async = req->async;
701
702 if (debug_level) fprintf( stderr, "completing accept request for socket %p\n", sock );
703
704 if (acceptsock)
705 {
706 if (!accept_into_socket( sock, acceptsock ))
707 {
708 async_terminate( async, get_error() );
709 return;
710 }
711 fill_accept_output( req );
712 }
713 else
714 {
715 obj_handle_t handle;
716
717 if (!(acceptsock = accept_socket( sock )))
718 {
719 async_terminate( async, get_error() );
720 return;
721 }
722 handle = alloc_handle_no_access_check( async_get_thread( async )->process, &acceptsock->obj,
723 GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, OBJ_INHERIT );
724 acceptsock->wparam = handle;
725 release_object( acceptsock );
726 if (!handle)
727 {
728 async_terminate( async, get_error() );
729 return;
730 }
731
732 async_request_complete_alloc( req->async, STATUS_SUCCESS, 0, sizeof(handle), &handle );
733 }
734 }
735
736 static void complete_async_accept_recv( struct accept_req *req )
737 {
738 if (debug_level) fprintf( stderr, "completing accept recv request for socket %p\n", req->acceptsock );
739
740 assert( req->recv_len );
741
742 fill_accept_output( req );
743 }
744
745 static void free_connect_req( void *private )
746 {
747 struct connect_req *req = private;
748
749 req->sock->connect_req = NULL;
750 release_object( req->async );
751 release_object( req->iosb );
752 release_object( req->sock );
753 free( req );
754 }
755
756 static void complete_async_connect( struct sock *sock )
757 {
758 struct connect_req *req = sock->connect_req;
759 const char *in_buffer;
760 size_t len;
761 int ret;
762
763 if (debug_level) fprintf( stderr, "completing connect request for socket %p\n", sock );
764
765 sock->state = SOCK_CONNECTED;
766
767 if (!req->send_len)
768 {
769 async_terminate( req->async, STATUS_SUCCESS );
770 return;
771 }
772
773 in_buffer = (const char *)req->iosb->in_data + sizeof(struct afd_connect_params) + req->addr_len;
774 len = req->send_len - req->send_cursor;
775
776 ret = send( get_unix_fd( sock->fd ), in_buffer + req->send_cursor, len, 0 );
777 if (ret < 0 && errno != EWOULDBLOCK)
778 async_terminate( req->async, sock_get_ntstatus( errno ) );
779 else if (ret == len)
780 async_request_complete( req->async, STATUS_SUCCESS, req->send_len, 0, NULL );
781 else
782 req->send_cursor += ret;
783 }
784
785 static void free_poll_req( void *private )
786 {
787 struct poll_req *req = private;
788 unsigned int i;
789
790 if (req->timeout) remove_timeout_user( req->timeout );
791
792 for (i = 0; i < req->count; ++i)
793 release_object( req->sockets[i].sock );
794 release_object( req->async );
795 release_object( req->iosb );
796 list_remove( &req->entry );
797 free( req );
798 }
799
800 static int is_oobinline( struct sock *sock )
801 {
802 int oobinline;
803 socklen_t len = sizeof(oobinline);
804 return !getsockopt( get_unix_fd( sock->fd ), SOL_SOCKET, SO_OOBINLINE, (char *)&oobinline, &len ) && oobinline;
805 }
806
807 static int get_poll_flags( struct sock *sock, int event )
808 {
809 int flags = 0;
810
811 /* A connection-mode socket which has never been connected does not return
812 * write or hangup events, but Linux reports POLLOUT | POLLHUP. */
813 if (sock->state == SOCK_UNCONNECTED)
814 event &= ~(POLLOUT | POLLHUP);
815
816 if (event & POLLIN)
817 {
818 if (sock->state == SOCK_LISTENING)
819 flags |= AFD_POLL_ACCEPT;
820 else
821 flags |= AFD_POLL_READ;
822 }
823 if (event & POLLPRI)
824 flags |= is_oobinline( sock ) ? AFD_POLL_READ : AFD_POLL_OOB;
825 if (event & POLLOUT)
826 flags |= AFD_POLL_WRITE;
827 if (sock->state == SOCK_CONNECTED)
828 flags |= AFD_POLL_CONNECT;
829 if (event & POLLHUP)
830 flags |= AFD_POLL_HUP;
831 if (event & POLLERR)
832 flags |= AFD_POLL_CONNECT_ERR;
833
834 return flags;
835 }
836
837 static void complete_async_poll( struct poll_req *req, unsigned int status )
838 {
839 unsigned int i, signaled_count = 0;
840
841 for (i = 0; i < req->count; ++i)
842 {
843 struct sock *sock = req->sockets[i].sock;
844
845 if (sock->main_poll == req)
846 sock->main_poll = NULL;
847 }
848
849 if (!status)
850 {
851 for (i = 0; i < req->count; ++i)
852 {
853 if (req->sockets[i].flags)
854 ++signaled_count;
855 }
856 }
857
858 if (is_machine_64bit( async_get_thread( req->async )->process->machine ))
859 {
860 size_t output_size = offsetof( struct afd_poll_params_64, sockets[signaled_count] );
861 struct afd_poll_params_64 *output;
862
863 if (!(output = mem_alloc( output_size )))
864 {
865 async_terminate( req->async, get_error() );
866 return;
867 }
868 memset( output, 0, output_size );
869 output->timeout = req->orig_timeout;
870 output->exclusive = req->exclusive;
871 for (i = 0; i < req->count; ++i)
872 {
873 if (!req->sockets[i].flags) continue;
874 output->sockets[output->count].socket = req->sockets[i].handle;
875 output->sockets[output->count].flags = req->sockets[i].flags;
876 output->sockets[output->count].status = req->sockets[i].status;
877 ++output->count;
878 }
879 assert( output->count == signaled_count );
880
881 async_request_complete( req->async, status, output_size, output_size, output );
882 }
883 else
884 {
885 size_t output_size = offsetof( struct afd_poll_params_32, sockets[signaled_count] );
886 struct afd_poll_params_32 *output;
887
888 if (!(output = mem_alloc( output_size )))
889 {
890 async_terminate( req->async, get_error() );
891 return;
892 }
893 memset( output, 0, output_size );
894 output->timeout = req->orig_timeout;
895 output->exclusive = req->exclusive;
896 for (i = 0; i < req->count; ++i)
897 {
898 if (!req->sockets[i].flags) continue;
899 output->sockets[output->count].socket = req->sockets[i].handle;
900 output->sockets[output->count].flags = req->sockets[i].flags;
901 output->sockets[output->count].status = req->sockets[i].status;
902 ++output->count;
903 }
904 assert( output->count == signaled_count );
905
906 async_request_complete( req->async, status, output_size, output_size, output );
907 }
908 }
909
910 static void complete_async_polls( struct sock *sock, int event, int error )
911 {
912 int flags = get_poll_flags( sock, event );
913 struct poll_req *req, *next;
914
915 LIST_FOR_EACH_ENTRY_SAFE( req, next, &poll_list, struct poll_req, entry )
916 {
917 unsigned int i;
918
919 if (req->iosb->status != STATUS_PENDING) continue;
920
921 for (i = 0; i < req->count; ++i)
922 {
923 if (req->sockets[i].sock != sock) continue;
924 if (!(req->sockets[i].mask & flags)) continue;
925
926 if (debug_level)
927 fprintf( stderr, "completing poll for socket %p, wanted %#x got %#x\n",
928 sock, req->sockets[i].mask, flags );
929
930 req->sockets[i].flags = req->sockets[i].mask & flags;
931 req->sockets[i].status = sock_get_ntstatus( error );
932
933 complete_async_poll( req, STATUS_SUCCESS );
934 break;
935 }
936 }
937 }
938
939 static void async_poll_timeout( void *private )
940 {
941 struct poll_req *req = private;
942
943 req->timeout = NULL;
944
945 if (req->iosb->status != STATUS_PENDING) return;
946
947 complete_async_poll( req, STATUS_TIMEOUT );
948 }
949
950 static int sock_dispatch_asyncs( struct sock *sock, int event, int error )
951 {
952 if (event & (POLLIN | POLLPRI))
953 {
954 struct accept_req *req;
955
956 LIST_FOR_EACH_ENTRY( req, &sock->accept_list, struct accept_req, entry )
957 {
958 if (req->iosb->status == STATUS_PENDING && !req->accepted)
959 {
960 complete_async_accept( sock, req );
961 break;
962 }
963 }
964
965 if (sock->accept_recv_req && sock->accept_recv_req->iosb->status == STATUS_PENDING)
966 complete_async_accept_recv( sock->accept_recv_req );
967 }
968
969 if ((event & POLLOUT) && sock->connect_req && sock->connect_req->iosb->status == STATUS_PENDING)
970 complete_async_connect( sock );
971
972 if (event & (POLLIN | POLLPRI) && async_waiting( &sock->read_q ))
973 {
974 if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
975 async_wake_up( &sock->read_q, STATUS_ALERTED );
976 event &= ~(POLLIN | POLLPRI);
977 }
978
979 if (event & POLLOUT && async_waiting( &sock->write_q ))
980 {
981 if (debug_level) fprintf( stderr, "activating write queue for socket %p\n", sock );
982 async_wake_up( &sock->write_q, STATUS_ALERTED );
983 event &= ~POLLOUT;
984 }
985
986 if (event & (POLLERR | POLLHUP))
987 {
988 int status = sock_get_ntstatus( error );
989 struct accept_req *req, *next;
990
991 if (sock->rd_shutdown || sock->hangup)
992 async_wake_up( &sock->read_q, status );
993 if (sock->wr_shutdown)
994 async_wake_up( &sock->write_q, status );
995
996 LIST_FOR_EACH_ENTRY_SAFE( req, next, &sock->accept_list, struct accept_req, entry )
997 {
998 if (req->iosb->status == STATUS_PENDING)
999 async_terminate( req->async, status );
1000 }
1001
1002 if (sock->accept_recv_req && sock->accept_recv_req->iosb->status == STATUS_PENDING)
1003 async_terminate( sock->accept_recv_req->async, status );
1004
1005 if (sock->connect_req)
1006 async_terminate( sock->connect_req->async, status );
1007 }
1008
1009 return event;
1010 }
1011
1012 static void post_socket_event( struct sock *sock, enum afd_poll_bit event_bit, int error )
1013 {
1014 unsigned int event = (1 << event_bit);
1015
1016 if (!(sock->reported_events & event))
1017 {
1018 sock->pending_events |= event;
1019 sock->reported_events |= event;
1020 sock->errors[event_bit] = error;
1021 }
1022 }
1023
1024 static void sock_dispatch_events( struct sock *sock, enum connection_state prevstate, int event, int error )
1025 {
1026 switch (prevstate)
1027 {
1028 case SOCK_UNCONNECTED:
1029 break;
1030
1031 case SOCK_CONNECTING:
1032 if (event & POLLOUT)
1033 {
1034 post_socket_event( sock, AFD_POLL_BIT_CONNECT, 0 );
1035 sock->errors[AFD_POLL_BIT_CONNECT_ERR] = 0;
1036 }
1037 if (event & (POLLERR | POLLHUP))
1038 post_socket_event( sock, AFD_POLL_BIT_CONNECT_ERR, error );
1039 break;
1040
1041 case SOCK_LISTENING:
1042 if (event & (POLLIN | POLLERR | POLLHUP))
1043 post_socket_event( sock, AFD_POLL_BIT_ACCEPT, error );
1044 break;
1045
1046 case SOCK_CONNECTED:
1047 case SOCK_CONNECTIONLESS:
1048 if (event & POLLIN)
1049 post_socket_event( sock, AFD_POLL_BIT_READ, 0 );
1050
1051 if (event & POLLOUT)
1052 post_socket_event( sock, AFD_POLL_BIT_WRITE, 0 );
1053
1054 if (event & POLLPRI)
1055 post_socket_event( sock, AFD_POLL_BIT_OOB, 0 );
1056
1057 if (event & (POLLERR | POLLHUP))
1058 post_socket_event( sock, AFD_POLL_BIT_HUP, error );
1059 break;
1060 }
1061
1062 sock_wake_up( sock );
1063 }
1064
1065 static void sock_poll_event( struct fd *fd, int event )
1066 {
1067 struct sock *sock = get_fd_user( fd );
1068 int hangup_seen = 0;
1069 enum connection_state prevstate = sock->state;
1070 int error = 0;
1071
1072 assert( sock->obj.ops == &sock_ops );
1073 if (debug_level)
1074 fprintf(stderr, "socket %p select event: %x\n", sock, event);
1075
1076 /* we may change event later, remove from loop here */
1077 if (event & (POLLERR|POLLHUP)) set_fd_events( sock->fd, -1 );
1078
1079 switch (sock->state)
1080 {
1081 case SOCK_UNCONNECTED:
1082 break;
1083
1084 case SOCK_CONNECTING:
1085 if (event & (POLLERR|POLLHUP))
1086 {
1087 sock->state = SOCK_UNCONNECTED;
1088 event &= ~POLLOUT;
1089 error = sock_error( fd );
1090 }
1091 else if (event & POLLOUT)
1092 {
1093 sock->state = SOCK_CONNECTED;
1094 sock->connect_time = current_time;
1095 }
1096 break;
1097
1098 case SOCK_LISTENING:
1099 if (event & (POLLERR|POLLHUP))
1100 error = sock_error( fd );
1101 break;
1102
1103 case SOCK_CONNECTED:
1104 case SOCK_CONNECTIONLESS:
1105 if (sock->type == WS_SOCK_STREAM && (event & POLLIN))
1106 {
1107 char dummy;
1108 int nr;
1109
1110 /* Linux 2.4 doesn't report POLLHUP if only one side of the socket
1111 * has been closed, so we need to check for it explicitly here */
1112 nr = recv( get_unix_fd( fd ), &dummy, 1, MSG_PEEK );
1113 if ( nr == 0 )
1114 {
1115 hangup_seen = 1;
1116 event &= ~POLLIN;
1117 }
1118 else if ( nr < 0 )
1119 {
1120 event &= ~POLLIN;
1121 /* EAGAIN can happen if an async recv() falls between the server's poll()
1122 call and the invocation of this routine */
1123 if ( errno != EAGAIN )
1124 {
1125 error = errno;
1126 event |= POLLERR;
1127 if ( debug_level )
1128 fprintf( stderr, "recv error on socket %p: %d\n", sock, errno );
1129 }
1130 }
1131 }
1132
1133 if (hangup_seen || (sock_shutdown_type == SOCK_SHUTDOWN_POLLHUP && (event & POLLHUP)))
1134 {
1135 sock->hangup = 1;
1136 }
1137 else if (event & (POLLHUP | POLLERR))
1138 {
1139 sock->aborted = 1;
1140
1141 if (debug_level)
1142 fprintf( stderr, "socket %p aborted by error %d, event %#x\n", sock, error, event );
1143 }
1144
1145 if (hangup_seen)
1146 event |= POLLHUP;
1147 break;
1148 }
1149
1150 complete_async_polls( sock, event, error );
1151
1152 event = sock_dispatch_asyncs( sock, event, error );
1153 sock_dispatch_events( sock, prevstate, event, error );
1154
1155 sock_reselect( sock );
1156 }
1157
1158 static void sock_dump( struct object *obj, int verbose )
1159 {
1160 struct sock *sock = (struct sock *)obj;
1161 assert( obj->ops == &sock_ops );
1162 fprintf( stderr, "Socket fd=%p, state=%x, mask=%x, pending=%x, reported=%x\n",
1163 sock->fd, sock->state,
1164 sock->mask, sock->pending_events, sock->reported_events );
1165 }
1166
1167 static int poll_flags_from_afd( struct sock *sock, int flags )
1168 {
1169 int ev = 0;
1170
1171 /* A connection-mode socket which has never been connected does
1172 * not return write or hangup events, but Linux returns
1173 * POLLOUT | POLLHUP. */
1174 if (sock->state == SOCK_UNCONNECTED)
1175 return -1;
1176
1177 if (flags & (AFD_POLL_READ | AFD_POLL_ACCEPT))
1178 ev |= POLLIN;
1179 if ((flags & AFD_POLL_HUP) && sock->type == WS_SOCK_STREAM)
1180 ev |= POLLIN;
1181 if (flags & AFD_POLL_OOB)
1182 ev |= is_oobinline( sock ) ? POLLIN : POLLPRI;
1183 if (flags & AFD_POLL_WRITE)
1184 ev |= POLLOUT;
1185
1186 return ev;
1187 }
1188
1189 static int sock_get_poll_events( struct fd *fd )
1190 {
1191 struct sock *sock = get_fd_user( fd );
1192 unsigned int mask = sock->mask & ~sock->reported_events;
1193 struct poll_req *req;
1194 int ev = 0;
1195
1196 assert( sock->obj.ops == &sock_ops );
1197
1198 if (!sock->type) /* not initialized yet */
1199 return -1;
1200
1201 switch (sock->state)
1202 {
1203 case SOCK_UNCONNECTED:
1204 /* A connection-mode Windows socket which has never been connected does
1205 * not return any events, but Linux returns POLLOUT | POLLHUP. Hence we
1206 * need to return -1 here, to prevent the socket from being polled on at
1207 * all. */
1208 return -1;
1209
1210 case SOCK_CONNECTING:
1211 return POLLOUT;
1212
1213 case SOCK_LISTENING:
1214 if (!list_empty( &sock->accept_list ) || (mask & AFD_POLL_ACCEPT))
1215 ev |= POLLIN;
1216 break;
1217
1218 case SOCK_CONNECTED:
1219 case SOCK_CONNECTIONLESS:
1220 if (sock->hangup && sock->wr_shutdown && !sock->wr_shutdown_pending)
1221 {
1222 /* Linux returns POLLHUP if a socket is both SHUT_RD and SHUT_WR, or
1223 * if both the socket and its peer are SHUT_WR.
1224 *
1225 * We don't use SHUT_RD, so we can only encounter this in the latter
1226 * case. In that case there can't be any pending read requests (they
1227 * would have already been completed with a length of zero), the
1228 * above condition ensures that we don't have any pending write
1229 * requests, and nothing that can change about the socket state that
1230 * would complete a pending poll request. */
1231 return -1;
1232 }
1233
1234 if (sock->aborted)
1235 return -1;
1236
1237 if (sock->accept_recv_req)
1238 {
1239 ev |= POLLIN;
1240 }
1241 else if (async_queued( &sock->read_q ))
1242 {
1243 if (async_waiting( &sock->read_q )) ev |= POLLIN | POLLPRI;
1244 }
1245 else
1246 {
1247 /* Don't ask for POLLIN if we got a hangup. We won't receive more
1248 * data anyway, but we will get POLLIN if SOCK_SHUTDOWN_EOF. */
1249 if (!sock->hangup)
1250 {
1251 if (mask & AFD_POLL_READ)
1252 ev |= POLLIN;
1253 if (mask & AFD_POLL_OOB)
1254 ev |= POLLPRI;
1255 }
1256
1257 /* We use POLLIN with 0 bytes recv() as hangup indication for stream sockets. */
1258 if (sock->state == SOCK_CONNECTED && (mask & AFD_POLL_HUP) && !(sock->reported_events & AFD_POLL_READ))
1259 ev |= POLLIN;
1260 }
1261
1262 if (async_queued( &sock->write_q ))
1263 {
1264 if (async_waiting( &sock->write_q )) ev |= POLLOUT;
1265 }
1266 else if (!sock->wr_shutdown && (mask & AFD_POLL_WRITE))
1267 {
1268 ev |= POLLOUT;
1269 }
1270
1271 break;
1272 }
1273
1274 LIST_FOR_EACH_ENTRY( req, &poll_list, struct poll_req, entry )
1275 {
1276 unsigned int i;
1277
1278 for (i = 0; i < req->count; ++i)
1279 {
1280 if (req->sockets[i].sock != sock) continue;
1281
1282 ev |= poll_flags_from_afd( sock, req->sockets[i].mask );
1283 }
1284 }
1285
1286 return ev;
1287 }
1288
1289 static enum server_fd_type sock_get_fd_type( struct fd *fd )
1290 {
1291 return FD_TYPE_SOCKET;
1292 }
1293
1294 static void sock_cancel_async( struct fd *fd, struct async *async )
1295 {
1296 struct poll_req *req;
1297
1298 LIST_FOR_EACH_ENTRY( req, &poll_list, struct poll_req, entry )
1299 {
1300 unsigned int i;
1301
1302 if (req->async != async)
1303 continue;
1304
1305 for (i = 0; i < req->count; i++)
1306 {
1307 struct sock *sock = req->sockets[i].sock;
1308
1309 if (sock->main_poll == req)
1310 sock->main_poll = NULL;
1311 }
1312 }
1313
1314 async_terminate( async, STATUS_CANCELLED );
1315 }
1316
1317 static void sock_queue_async( struct fd *fd, struct async *async, int type, int count )
1318 {
1319 struct sock *sock = get_fd_user( fd );
1320 struct async_queue *queue;
1321
1322 assert( sock->obj.ops == &sock_ops );
1323
1324 switch (type)
1325 {
1326 case ASYNC_TYPE_READ:
1327 if (sock->rd_shutdown)
1328 {
1329 set_error( STATUS_PIPE_DISCONNECTED );
1330 return;
1331 }
1332 queue = &sock->read_q;
1333 break;
1334
1335 case ASYNC_TYPE_WRITE:
1336 if (sock->wr_shutdown)
1337 {
1338 set_error( STATUS_PIPE_DISCONNECTED );
1339 return;
1340 }
1341 queue = &sock->write_q;
1342 break;
1343
1344 default:
1345 set_error( STATUS_INVALID_PARAMETER );
1346 return;
1347 }
1348
1349 if (sock->state != SOCK_CONNECTED)
1350 {
1351 set_error( STATUS_PIPE_DISCONNECTED );
1352 return;
1353 }
1354
1355 queue_async( queue, async );
1356 sock_reselect( sock );
1357
1358 set_error( STATUS_PENDING );
1359 }
1360
1361 static void sock_reselect_async( struct fd *fd, struct async_queue *queue )
1362 {
1363 struct sock *sock = get_fd_user( fd );
1364
1365 if (sock->wr_shutdown_pending && list_empty( &sock->write_q.queue ))
1366 {
1367 shutdown( get_unix_fd( sock->fd ), SHUT_WR );
1368 sock->wr_shutdown_pending = 0;
1369 }
1370
1371 /* Don't reselect the ifchange queue; we always ask for POLLIN.
1372 * Don't reselect an uninitialized socket; we can't call set_fd_events() on
1373 * a pseudo-fd. */
1374 if (queue != &sock->ifchange_q && sock->type)
1375 sock_reselect( sock );
1376 }
1377
1378 static struct fd *sock_get_fd( struct object *obj )
1379 {
1380 struct sock *sock = (struct sock *)obj;
1381 return (struct fd *)grab_object( sock->fd );
1382 }
1383
1384 static int sock_close_handle( struct object *obj, struct process *process, obj_handle_t handle )
1385 {
1386 struct sock *sock = (struct sock *)obj;
1387
1388 if (sock->obj.handle_count == 1) /* last handle */
1389 {
1390 struct accept_req *accept_req, *accept_next;
1391 struct poll_req *poll_req, *poll_next;
1392
1393 if (sock->accept_recv_req)
1394 async_terminate( sock->accept_recv_req->async, STATUS_CANCELLED );
1395
1396 LIST_FOR_EACH_ENTRY_SAFE( accept_req, accept_next, &sock->accept_list, struct accept_req, entry )
1397 async_terminate( accept_req->async, STATUS_CANCELLED );
1398
1399 if (sock->connect_req)
1400 async_terminate( sock->connect_req->async, STATUS_CANCELLED );
1401
1402 LIST_FOR_EACH_ENTRY_SAFE( poll_req, poll_next, &poll_list, struct poll_req, entry )
1403 {
1404 struct iosb *iosb = poll_req->iosb;
1405 BOOL signaled = FALSE;
1406 unsigned int i;
1407
1408 if (iosb->status != STATUS_PENDING) continue;
1409
1410 for (i = 0; i < poll_req->count; ++i)
1411 {
1412 if (poll_req->sockets[i].sock == sock)
1413 {
1414 signaled = TRUE;
1415 poll_req->sockets[i].flags = AFD_POLL_CLOSE;
1416 poll_req->sockets[i].status = 0;
1417 }
1418 }
1419
1420 if (signaled) complete_async_poll( poll_req, STATUS_SUCCESS );
1421 }
1422 }
1423
1424 return 1;
1425 }
1426
1427 static void sock_destroy( struct object *obj )
1428 {
1429 struct sock *sock = (struct sock *)obj;
1430
1431 assert( obj->ops == &sock_ops );
1432
1433 /* FIXME: special socket shutdown stuff? */
1434
1435 if ( sock->deferred )
1436 release_object( sock->deferred );
1437
1438 async_wake_up( &sock->ifchange_q, STATUS_CANCELLED );
1439 sock_release_ifchange( sock );
1440 free_async_queue( &sock->read_q );
1441 free_async_queue( &sock->write_q );
1442 free_async_queue( &sock->ifchange_q );
1443 free_async_queue( &sock->accept_q );
1444 free_async_queue( &sock->connect_q );
1445 free_async_queue( &sock->poll_q );
1446 if (sock->event) release_object( sock->event );
1447 if (sock->fd)
1448 {
1449 /* shut the socket down to force pending poll() calls in the client to return */
1450 shutdown( get_unix_fd(sock->fd), SHUT_RDWR );
1451 release_object( sock->fd );
1452 }
1453 }
1454
1455 static struct sock *create_socket(void)
1456 {
1457 struct sock *sock;
1458
1459 if (!(sock = alloc_object( &sock_ops ))) return NULL;
1460 sock->fd = NULL;
1461 sock->state = SOCK_UNCONNECTED;
1462 sock->mask = 0;
1463 sock->pending_events = 0;
1464 sock->reported_events = 0;
1465 sock->flags = 0;
1466 sock->proto = 0;
1467 sock->type = 0;
1468 sock->family = 0;
1469 sock->event = NULL;
1470 sock->window = 0;
1471 sock->message = 0;
1472 sock->wparam = 0;
1473 sock->connect_time = 0;
1474 sock->deferred = NULL;
1475 sock->ifchange_obj = NULL;
1476 sock->accept_recv_req = NULL;
1477 sock->connect_req = NULL;
1478 sock->main_poll = NULL;
1479 memset( &sock->addr, 0, sizeof(sock->addr) );
1480 sock->addr_len = 0;
1481 sock->rd_shutdown = 0;
1482 sock->wr_shutdown = 0;
1483 sock->wr_shutdown_pending = 0;
1484 sock->hangup = 0;
1485 sock->aborted = 0;
1486 sock->nonblocking = 0;
1487 sock->bound = 0;
1488 sock->rcvbuf = 0;
1489 sock->sndbuf = 0;
1490 sock->rcvtimeo = 0;
1491 sock->sndtimeo = 0;
1492 init_async_queue( &sock->read_q );
1493 init_async_queue( &sock->write_q );
1494 init_async_queue( &sock->ifchange_q );
1495 init_async_queue( &sock->accept_q );
1496 init_async_queue( &sock->connect_q );
1497 init_async_queue( &sock->poll_q );
1498 memset( sock->errors, 0, sizeof(sock->errors) );
1499 list_init( &sock->accept_list );
1500 return sock;
1501 }
1502
1503 static int get_unix_family( int family )
1504 {
1505 switch (family)
1506 {
1507 case WS_AF_INET: return AF_INET;
1508 case WS_AF_INET6: return AF_INET6;
1509 #ifdef HAS_IPX
1510 case WS_AF_IPX: return AF_IPX;
1511 #endif
1512 #ifdef AF_IRDA
1513 case WS_AF_IRDA: return AF_IRDA;
1514 #endif
1515 case WS_AF_UNSPEC: return AF_UNSPEC;
1516 default: return -1;
1517 }
1518 }
1519
1520 static int get_unix_type( int type )
1521 {
1522 switch (type)
1523 {
1524 case WS_SOCK_DGRAM: return SOCK_DGRAM;
1525 case WS_SOCK_RAW: return SOCK_RAW;
1526 case WS_SOCK_STREAM: return SOCK_STREAM;
1527 default: return -1;
1528 }
1529 }
1530
1531 static int get_unix_protocol( int protocol )
1532 {
1533 if (protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
1534 return protocol;
1535
1536 switch (protocol)
1537 {
1538 case WS_IPPROTO_ICMP: return IPPROTO_ICMP;
1539 case WS_IPPROTO_IGMP: return IPPROTO_IGMP;
1540 case WS_IPPROTO_IP: return IPPROTO_IP;
1541 case WS_IPPROTO_IPV4: return IPPROTO_IPIP;
1542 case WS_IPPROTO_IPV6: return IPPROTO_IPV6;
1543 case WS_IPPROTO_RAW: return IPPROTO_RAW;
1544 case WS_IPPROTO_TCP: return IPPROTO_TCP;
1545 case WS_IPPROTO_UDP: return IPPROTO_UDP;
1546 default: return -1;
1547 }
1548 }
1549
1550 static void set_dont_fragment( int fd, int level, int value )
1551 {
1552 int optname;
1553
1554 if (level == IPPROTO_IP)
1555 {
1556 #ifdef IP_DONTFRAG
1557 optname = IP_DONTFRAG;
1558 #elif defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO) && defined(IP_PMTUDISC_DONT)
1559 optname = IP_MTU_DISCOVER;
1560 value = value ? IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
1561 #else
1562 return;
1563 #endif
1564 }
1565 else
1566 {
1567 #ifdef IPV6_DONTFRAG
1568 optname = IPV6_DONTFRAG;
1569 #elif defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO) && defined(IPV6_PMTUDISC_DONT)
1570 optname = IPV6_MTU_DISCOVER;
1571 value = value ? IPV6_PMTUDISC_DO : IPV6_PMTUDISC_DONT;
1572 #else
1573 return;
1574 #endif
1575 }
1576
1577 setsockopt( fd, level, optname, &value, sizeof(value) );
1578 }
1579
1580 static int init_socket( struct sock *sock, int family, int type, int protocol, unsigned int flags )
1581 {
1582 unsigned int options = 0;
1583 int sockfd, unix_type, unix_family, unix_protocol, value;
1584 socklen_t len;
1585
1586 unix_family = get_unix_family( family );
1587 unix_type = get_unix_type( type );
1588 unix_protocol = get_unix_protocol( protocol );
1589
1590 if (unix_protocol < 0)
1591 {
1592 if (type && unix_type < 0)
1593 set_win32_error( WSAESOCKTNOSUPPORT );
1594 else
1595 set_win32_error( WSAEPROTONOSUPPORT );
1596 return -1;
1597 }
1598 if (unix_family < 0)
1599 {
1600 if (family >= 0 && unix_type < 0)
1601 set_win32_error( WSAESOCKTNOSUPPORT );
1602 else
1603 set_win32_error( WSAEAFNOSUPPORT );
1604 return -1;
1605 }
1606
1607 sockfd = socket( unix_family, unix_type, unix_protocol );
1608 if (sockfd == -1)
1609 {
1610 if (errno == EINVAL) set_win32_error( WSAESOCKTNOSUPPORT );
1611 else set_win32_error( sock_get_error( errno ));
1612 return -1;
1613 }
1614 fcntl(sockfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
1615
1616 if (family == WS_AF_IPX && protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
1617 {
1618 #ifdef HAS_IPX
1619 int ipx_type = protocol - WS_NSPROTO_IPX;
1620
1621 #ifdef SOL_IPX
1622 setsockopt( sockfd, SOL_IPX, IPX_TYPE, &ipx_type, sizeof(ipx_type) );
1623 #else
1624 struct ipx val;
1625 /* Should we retrieve val using a getsockopt call and then
1626 * set the modified one? */
1627 val.ipx_pt = ipx_type;
1628 setsockopt( sockfd, 0, SO_DEFAULT_HEADERS, &val, sizeof(val) );
1629 #endif
1630 #endif
1631 }
1632
1633 if (unix_family == AF_INET || unix_family == AF_INET6)
1634 {
1635 /* ensure IP_DONTFRAGMENT is disabled for SOCK_DGRAM and SOCK_RAW, enabled for SOCK_STREAM */
1636 if (unix_type == SOCK_DGRAM || unix_type == SOCK_RAW) /* in Linux the global default can be enabled */
1637 set_dont_fragment( sockfd, unix_family == AF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP, FALSE );
1638 else if (unix_type == SOCK_STREAM)
1639 set_dont_fragment( sockfd, unix_family == AF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP, TRUE );
1640 }
1641
1642 #ifdef IPV6_V6ONLY
1643 if (unix_family == AF_INET6)
1644 {
1645 static const int enable = 1;
1646 setsockopt( sockfd, IPPROTO_IPV6, IPV6_V6ONLY, &enable, sizeof(enable) );
1647 }
1648 #endif
1649
1650 len = sizeof(value);
1651 if (!getsockopt( sockfd, SOL_SOCKET, SO_RCVBUF, &value, &len ))
1652 sock->rcvbuf = value;
1653
1654 len = sizeof(value);
1655 if (!getsockopt( sockfd, SOL_SOCKET, SO_SNDBUF, &value, &len ))
1656 sock->sndbuf = value;
1657
1658 sock->state = (type == WS_SOCK_STREAM ? SOCK_UNCONNECTED : SOCK_CONNECTIONLESS);
1659 sock->flags = flags;
1660 sock->proto = protocol;
1661 sock->type = type;
1662 sock->family = family;
1663
1664 if (sock->fd)
1665 {
1666 options = get_fd_options( sock->fd );
1667 release_object( sock->fd );
1668 }
1669
1670 if (!(sock->fd = create_anonymous_fd( &sock_fd_ops, sockfd, &sock->obj, options )))
1671 {
1672 return -1;
1673 }
1674
1675 /* We can't immediately allow caching for a connection-mode socket, since it
1676 * might be accepted into (changing the underlying fd object.) */
1677 if (sock->type != WS_SOCK_STREAM) allow_fd_caching( sock->fd );
1678
1679 return 0;
1680 }
1681
1682 /* accepts a socket and inits it */
1683 static int accept_new_fd( struct sock *sock )
1684 {
1685
1686 /* Try to accept(2). We can't be safe that this an already connected socket
1687 * or that accept() is allowed on it. In those cases we will get -1/errno
1688 * return.
1689 */
1690 struct sockaddr saddr;
1691 socklen_t slen = sizeof(saddr);
1692 int acceptfd = accept( get_unix_fd(sock->fd), &saddr, &slen );
1693 if (acceptfd != -1)
1694 fcntl( acceptfd, F_SETFL, O_NONBLOCK );
1695 else
1696 set_error( sock_get_ntstatus( errno ));
1697 return acceptfd;
1698 }
1699
1700 /* accept a socket (creates a new fd) */
1701 static struct sock *accept_socket( struct sock *sock )
1702 {
1703 struct sock *acceptsock;
1704 int acceptfd;
1705
1706 if (get_unix_fd( sock->fd ) == -1) return NULL;
1707
1708 if ( sock->deferred )
1709 {
1710 acceptsock = sock->deferred;
1711 sock->deferred = NULL;
1712 }
1713 else
1714 {
1715 union unix_sockaddr unix_addr;
1716 socklen_t unix_len;
1717
1718 if ((acceptfd = accept_new_fd( sock )) == -1) return NULL;
1719 if (!(acceptsock = create_socket()))
1720 {
1721 close( acceptfd );
1722 return NULL;
1723 }
1724
1725 /* newly created socket gets the same properties of the listening socket */
1726 acceptsock->state = SOCK_CONNECTED;
1727 acceptsock->bound = 1;
1728 acceptsock->nonblocking = sock->nonblocking;
1729 acceptsock->mask = sock->mask;
1730 acceptsock->proto = sock->proto;
1731 acceptsock->type = sock->type;
1732 acceptsock->family = sock->family;
1733 acceptsock->window = sock->window;
1734 acceptsock->message = sock->message;
1735 acceptsock->connect_time = current_time;
1736 if (sock->event) acceptsock->event = (struct event *)grab_object( sock->event );
1737 acceptsock->flags = sock->flags;
1738 if (!(acceptsock->fd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
1739 get_fd_options( sock->fd ) )))
1740 {
1741 release_object( acceptsock );
1742 return NULL;
1743 }
1744 unix_len = sizeof(unix_addr);
1745 if (!getsockname( acceptfd, &unix_addr.addr, &unix_len ))
1746 acceptsock->addr_len = sockaddr_from_unix( &unix_addr, &acceptsock->addr.addr, sizeof(acceptsock->addr) );
1747 }
1748 clear_error();
1749 sock->pending_events &= ~AFD_POLL_ACCEPT;
1750 sock->reported_events &= ~AFD_POLL_ACCEPT;
1751 sock_reselect( sock );
1752 return acceptsock;
1753 }
1754
1755 static int accept_into_socket( struct sock *sock, struct sock *acceptsock )
1756 {
1757 union unix_sockaddr unix_addr;
1758 socklen_t unix_len;
1759 int acceptfd;
1760 struct fd *newfd;
1761
1762 if (get_unix_fd( sock->fd ) == -1) return FALSE;
1763
1764 if ( sock->deferred )
1765 {
1766 newfd = dup_fd_object( sock->deferred->fd, 0, 0,
1767 get_fd_options( acceptsock->fd ) );
1768 if ( !newfd )
1769 return FALSE;
1770
1771 set_fd_user( newfd, &sock_fd_ops, &acceptsock->obj );
1772
1773 release_object( sock->deferred );
1774 sock->deferred = NULL;
1775 }
1776 else
1777 {
1778 if ((acceptfd = accept_new_fd( sock )) == -1)
1779 return FALSE;
1780
1781 if (!(newfd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
1782 get_fd_options( acceptsock->fd ) )))
1783 return FALSE;
1784 }
1785
1786 acceptsock->state = SOCK_CONNECTED;
1787 acceptsock->pending_events = 0;
1788 acceptsock->reported_events = 0;
1789 acceptsock->proto = sock->proto;
1790 acceptsock->type = sock->type;
1791 acceptsock->family = sock->family;
1792 acceptsock->wparam = 0;
1793 acceptsock->deferred = NULL;
1794 acceptsock->connect_time = current_time;
1795 fd_copy_completion( acceptsock->fd, newfd );
1796 release_object( acceptsock->fd );
1797 acceptsock->fd = newfd;
1798
1799 unix_len = sizeof(unix_addr);
1800 if (!getsockname( get_unix_fd( newfd ), &unix_addr.addr, &unix_len ))
1801 acceptsock->addr_len = sockaddr_from_unix( &unix_addr, &acceptsock->addr.addr, sizeof(acceptsock->addr) );
1802
1803 clear_error();
1804 sock->pending_events &= ~AFD_POLL_ACCEPT;
1805 sock->reported_events &= ~AFD_POLL_ACCEPT;
1806 sock_reselect( sock );
1807
1808 return TRUE;
1809 }
1810
1811 #ifdef IP_BOUND_IF
1812
1813 static int bind_to_iface_name( int fd, in_addr_t bind_addr, const char *name )
1814 {
1815 static const int enable = 1;
1816 unsigned int index;
1817
1818 if (!(index = if_nametoindex( name )))
1819 return -1;
1820
1821 if (setsockopt( fd, IPPROTO_IP, IP_BOUND_IF, &index, sizeof(index) ))
1822 return -1;
1823
1824 return setsockopt( fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable) );
1825 }
1826
1827 #elif defined(IP_UNICAST_IF) && defined(SO_ATTACH_FILTER) && defined(SO_BINDTODEVICE)
1828
1829 struct interface_filter
1830 {
1831 struct sock_filter iface_memaddr;
1832 struct sock_filter iface_rule;
1833 struct sock_filter ip_memaddr;
1834 struct sock_filter ip_rule;
1835 struct sock_filter return_keep;
1836 struct sock_filter return_dump;
1837 };
1838 # define FILTER_JUMP_DUMP(here) (u_char)(offsetof(struct interface_filter, return_dump) \
1839 -offsetof(struct interface_filter, here)-sizeof(struct sock_filter)) \
1840 /sizeof(struct sock_filter)
1841 # define FILTER_JUMP_KEEP(here) (u_char)(offsetof(struct interface_filter, return_keep) \
1842 -offsetof(struct interface_filter, here)-sizeof(struct sock_filter)) \
1843 /sizeof(struct sock_filter)
1844 # define FILTER_JUMP_NEXT() (u_char)(0)
1845 # define SKF_NET_DESTIP 16 /* offset in the network header to the destination IP */
1846 static struct interface_filter generic_interface_filter =
1847 {
1848 /* This filter rule allows incoming packets on the specified interface, which works for all
1849 * remotely generated packets and for locally generated broadcast packets. */
1850 BPF_STMT(BPF_LD+BPF_W+BPF_ABS, SKF_AD_OFF+SKF_AD_IFINDEX),
1851 BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0xdeadbeef, FILTER_JUMP_KEEP(iface_rule), FILTER_JUMP_NEXT()),
1852 /* This rule allows locally generated packets targeted at the specific IP address of the chosen
1853 * adapter (local packets not destined for the broadcast address do not have IFINDEX set) */
1854 BPF_STMT(BPF_LD+BPF_W+BPF_ABS, SKF_NET_OFF+SKF_NET_DESTIP),
1855 BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0xdeadbeef, FILTER_JUMP_KEEP(ip_rule), FILTER_JUMP_DUMP(ip_rule)),
1856 BPF_STMT(BPF_RET+BPF_K, (u_int)-1), /* keep packet */
1857 BPF_STMT(BPF_RET+BPF_K, 0) /* dump packet */
1858 };
1859
1860 static int bind_to_iface_name( int fd, in_addr_t bind_addr, const char *name )
1861 {
1862 struct interface_filter specific_interface_filter;
1863 struct sock_fprog filter_prog;
1864 static const int enable = 1;
1865 unsigned int index;
1866 in_addr_t ifindex;
1867
1868 if (!setsockopt( fd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen( name ) + 1 ))
1869 return 0;
1870
1871 /* SO_BINDTODEVICE requires NET_CAP_RAW until Linux 5.7. */
1872 if (debug_level)
1873 fprintf( stderr, "setsockopt SO_BINDTODEVICE fd %d, name %s failed: %s, falling back to SO_REUSE_ADDR\n",
1874 fd, name, strerror( errno ));
1875
1876 if (!(index = if_nametoindex( name )))
1877 return -1;
1878
1879 ifindex = htonl( index );
1880 if (setsockopt( fd, IPPROTO_IP, IP_UNICAST_IF, &ifindex, sizeof(ifindex) ) < 0)
1881 return -1;
1882
1883 specific_interface_filter = generic_interface_filter;
1884 specific_interface_filter.iface_rule.k = index;
1885 specific_interface_filter.ip_rule.k = htonl( bind_addr );
1886 filter_prog.len = sizeof(generic_interface_filter) / sizeof(struct sock_filter);
1887 filter_prog.filter = (struct sock_filter *)&specific_interface_filter;
1888 if (setsockopt( fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter_prog, sizeof(filter_prog) ))
1889 return -1;
1890
1891 return setsockopt( fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable) );
1892 }
1893
1894 #else
1895
1896 static int bind_to_iface_name( int fd, in_addr_t bind_addr, const char *name )
1897 {
1898 errno = EOPNOTSUPP;
1899 return -1;
1900 }
1901
1902 #endif /* LINUX_BOUND_IF */
1903
1904 /* Take bind() calls on any name corresponding to a local network adapter and
1905 * restrict the given socket to operating only on the specified interface. This
1906 * restriction consists of two components:
1907 * 1) An outgoing packet restriction suggesting the egress interface for all
1908 * packets.
1909 * 2) An incoming packet restriction dropping packets not meant for the
1910 * interface.
1911 * If the function succeeds in placing these restrictions, then the name for the
1912 * bind() may safely be changed to INADDR_ANY, permitting the transmission and
1913 * receipt of broadcast packets on the socket. This behavior is only relevant to
1914 * UDP sockets and is needed for applications that expect to be able to receive
1915 * broadcast packets on a socket that is bound to a specific network interface.
1916 */
1917 static int bind_to_interface( struct sock *sock, const struct sockaddr_in *addr )
1918 {
1919 in_addr_t bind_addr = addr->sin_addr.s_addr;
1920 struct ifaddrs *ifaddrs, *ifaddr;
1921 int fd = get_unix_fd( sock->fd );
1922 int err = 0;
1923
1924 if (bind_addr == htonl( INADDR_ANY ) || bind_addr == htonl( INADDR_LOOPBACK ))
1925 return 0;
1926 if (sock->type != WS_SOCK_DGRAM)
1927 return 0;
1928
1929 if (getifaddrs( &ifaddrs ) < 0) return 0;
1930
1931 for (ifaddr = ifaddrs; ifaddr != NULL; ifaddr = ifaddr->ifa_next)
1932 {
1933 if (ifaddr->ifa_addr && ifaddr->ifa_addr->sa_family == AF_INET
1934 && ((struct sockaddr_in *)ifaddr->ifa_addr)->sin_addr.s_addr == bind_addr)
1935 {
1936 if ((err = bind_to_iface_name( fd, bind_addr, ifaddr->ifa_name )) < 0)
1937 {
1938 if (debug_level)
1939 fprintf( stderr, "failed to bind to interface: %s\n", strerror( errno ) );
1940 }
1941 break;
1942 }
1943 }
1944 freeifaddrs( ifaddrs );
1945 return !err;
1946 }
1947
1948 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
1949 static unsigned int get_ipv6_interface_index( const struct in6_addr *addr )
1950 {
1951 struct ifaddrs *ifaddrs, *ifaddr;
1952
1953 if (getifaddrs( &ifaddrs ) < 0) return 0;
1954
1955 for (ifaddr = ifaddrs; ifaddr != NULL; ifaddr = ifaddr->ifa_next)
1956 {
1957 if (ifaddr->ifa_addr && ifaddr->ifa_addr->sa_family == AF_INET6
1958 && !memcmp( &((struct sockaddr_in6 *)ifaddr->ifa_addr)->sin6_addr, addr, sizeof(*addr) ))
1959 {
1960 unsigned int index = if_nametoindex( ifaddr->ifa_name );
1961
1962 if (!index)
1963 {
1964 if (debug_level)
1965 fprintf( stderr, "Unable to look up interface index for %s: %s\n",
1966 ifaddr->ifa_name, strerror( errno ) );
1967 continue;
1968 }
1969
1970 freeifaddrs( ifaddrs );
1971 return index;
1972 }
1973 }
1974
1975 freeifaddrs( ifaddrs );
1976 return 0;
1977 }
1978 #endif
1979
1980 /* return an errno value mapped to a WSA error */
1981 static unsigned int sock_get_error( int err )
1982 {
1983 switch (err)
1984 {
1985 case EINTR: return WSAEINTR;
1986 case EBADF: return WSAEBADF;
1987 case EPERM:
1988 case EACCES: return WSAEACCES;
1989 case EFAULT: return WSAEFAULT;
1990 case EINVAL: return WSAEINVAL;
1991 case EMFILE: return WSAEMFILE;
1992 case EINPROGRESS:
1993 case EWOULDBLOCK: return WSAEWOULDBLOCK;
1994 case EALREADY: return WSAEALREADY;
1995 case ENOTSOCK: return WSAENOTSOCK;
1996 case EDESTADDRREQ: return WSAEDESTADDRREQ;
1997 case EMSGSIZE: return WSAEMSGSIZE;
1998 case EPROTOTYPE: return WSAEPROTOTYPE;
1999 case ENOPROTOOPT: return WSAENOPROTOOPT;
2000 case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
2001 case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
2002 case EOPNOTSUPP: return WSAEOPNOTSUPP;
2003 case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
2004 case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
2005 case EADDRINUSE: return WSAEADDRINUSE;
2006 case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
2007 case ENETDOWN: return WSAENETDOWN;
2008 case ENETUNREACH: return WSAENETUNREACH;
2009 case ENETRESET: return WSAENETRESET;
2010 case ECONNABORTED: return WSAECONNABORTED;
2011 case EPIPE:
2012 case ECONNRESET: return WSAECONNRESET;
2013 case ENOBUFS: return WSAENOBUFS;
2014 case EISCONN: return WSAEISCONN;
2015 case ENOTCONN: return WSAENOTCONN;
2016 case ESHUTDOWN: return WSAESHUTDOWN;
2017 case ETOOMANYREFS: return WSAETOOMANYREFS;
2018 case ETIMEDOUT: return WSAETIMEDOUT;
2019 case ECONNREFUSED: return WSAECONNREFUSED;
2020 case ELOOP: return WSAELOOP;
2021 case ENAMETOOLONG: return WSAENAMETOOLONG;
2022 case EHOSTDOWN: return WSAEHOSTDOWN;
2023 case EHOSTUNREACH: return WSAEHOSTUNREACH;
2024 case ENOTEMPTY: return WSAENOTEMPTY;
2025 #ifdef EPROCLIM
2026 case EPROCLIM: return WSAEPROCLIM;
2027 #endif
2028 #ifdef EUSERS
2029 case EUSERS: return WSAEUSERS;
2030 #endif
2031 #ifdef EDQUOT
2032 case EDQUOT: return WSAEDQUOT;
2033 #endif
2034 #ifdef ESTALE
2035 case ESTALE: return WSAESTALE;
2036 #endif
2037 #ifdef EREMOTE
2038 case EREMOTE: return WSAEREMOTE;
2039 #endif
2040
2041 case 0: return 0;
2042 default:
2043 errno = err;
2044 perror("wineserver: sock_get_error() can't map error");
2045 return WSAEFAULT;
2046 }
2047 }
2048
2049 static int sock_get_ntstatus( int err )
2050 {
2051 switch ( err )
2052 {
2053 case EBADF: return STATUS_INVALID_HANDLE;
2054 case EBUSY: return STATUS_DEVICE_BUSY;
2055 case EPERM:
2056 case EACCES: return STATUS_ACCESS_DENIED;
2057 case EFAULT: return STATUS_ACCESS_VIOLATION;
2058 case EINVAL: return STATUS_INVALID_PARAMETER;
2059 case ENFILE:
2060 case EMFILE: return STATUS_TOO_MANY_OPENED_FILES;
2061 case EINPROGRESS:
2062 case EWOULDBLOCK: return STATUS_DEVICE_NOT_READY;
2063 case EALREADY: return STATUS_NETWORK_BUSY;
2064 case ENOTSOCK: return STATUS_OBJECT_TYPE_MISMATCH;
2065 case EDESTADDRREQ: return STATUS_INVALID_PARAMETER;
2066 case EMSGSIZE: return STATUS_BUFFER_OVERFLOW;
2067 case EPROTONOSUPPORT:
2068 case ESOCKTNOSUPPORT:
2069 case EPFNOSUPPORT:
2070 case EAFNOSUPPORT:
2071 case EPROTOTYPE: return STATUS_NOT_SUPPORTED;
2072 case ENOPROTOOPT: return STATUS_INVALID_PARAMETER;
2073 case EOPNOTSUPP: return STATUS_NOT_SUPPORTED;
2074 case EADDRINUSE: return STATUS_SHARING_VIOLATION;
2075 /* Linux returns ENODEV when specifying an invalid sin6_scope_id;
2076 * Windows returns STATUS_INVALID_ADDRESS_COMPONENT */
2077 case ENODEV:
2078 case EADDRNOTAVAIL: return STATUS_INVALID_ADDRESS_COMPONENT;
2079 case ECONNREFUSED: return STATUS_CONNECTION_REFUSED;
2080 case ESHUTDOWN: return STATUS_PIPE_DISCONNECTED;
2081 case ENOTCONN: return STATUS_INVALID_CONNECTION;
2082 case ETIMEDOUT: return STATUS_IO_TIMEOUT;
2083 case ENETUNREACH: return STATUS_NETWORK_UNREACHABLE;
2084 case EHOSTUNREACH: return STATUS_HOST_UNREACHABLE;
2085 case ENETDOWN: return STATUS_NETWORK_BUSY;
2086 case EPIPE:
2087 case ECONNRESET: return STATUS_CONNECTION_RESET;
2088 case ECONNABORTED: return STATUS_CONNECTION_ABORTED;
2089 case EISCONN: return STATUS_CONNECTION_ACTIVE;
2090
2091 case 0: return STATUS_SUCCESS;
2092 default:
2093 errno = err;
2094 perror("wineserver: sock_get_ntstatus() can't map error");
2095 return STATUS_UNSUCCESSFUL;
2096 }
2097 }
2098
2099 static struct accept_req *alloc_accept_req( struct sock *sock, struct sock *acceptsock, struct async *async,
2100 const struct afd_accept_into_params *params )
2101 {
2102 struct accept_req *req = mem_alloc( sizeof(*req) );
2103
2104 if (req)
2105 {
2106 req->async = (struct async *)grab_object( async );
2107 req->iosb = async_get_iosb( async );
2108 req->sock = (struct sock *)grab_object( sock );
2109 req->acceptsock = acceptsock;
2110 if (acceptsock) grab_object( acceptsock );
2111 req->accepted = 0;
2112 req->recv_len = 0;
2113 req->local_len = 0;
2114 if (params)
2115 {
2116 req->recv_len = params->recv_len;
2117 req->local_len = params->local_len;
2118 }
2119 }
2120 return req;
2121 }
2122
2123 static void sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
2124 {
2125 struct sock *sock = get_fd_user( fd );
2126 int unix_fd;
2127
2128 assert( sock->obj.ops == &sock_ops );
2129
2130 if (code != IOCTL_AFD_WINE_CREATE && (unix_fd = get_unix_fd( fd )) < 0) return;
2131
2132 switch(code)
2133 {
2134 case IOCTL_AFD_WINE_CREATE:
2135 {
2136 const struct afd_create_params *params = get_req_data();
2137
2138 if (get_req_data_size() != sizeof(*params))
2139 {
2140 set_error( STATUS_INVALID_PARAMETER );
2141 return;
2142 }
2143 init_socket( sock, params->family, params->type, params->protocol, params->flags );
2144 return;
2145 }
2146
2147 case IOCTL_AFD_WINE_ACCEPT:
2148 {
2149 struct sock *acceptsock;
2150 obj_handle_t handle;
2151
2152 if (get_reply_max_size() != sizeof(handle))
2153 {
2154 set_error( STATUS_BUFFER_TOO_SMALL );
2155 return;
2156 }
2157
2158 if (!(acceptsock = accept_socket( sock )))
2159 {
2160 struct accept_req *req;
2161
2162 if (sock->nonblocking) return;
2163 if (get_error() != STATUS_DEVICE_NOT_READY) return;
2164
2165 if (!(req = alloc_accept_req( sock, NULL, async, NULL ))) return;
2166 list_add_tail( &sock->accept_list, &req->entry );
2167
2168 async_set_completion_callback( async, free_accept_req, req );
2169 queue_async( &sock->accept_q, async );
2170 sock_reselect( sock );
2171 set_error( STATUS_PENDING );
2172 return;
2173 }
2174 handle = alloc_handle( current->process, &acceptsock->obj,
2175 GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, OBJ_INHERIT );
2176 acceptsock->wparam = handle;
2177 release_object( acceptsock );
2178 set_reply_data( &handle, sizeof(handle) );
2179 return;
2180 }
2181
2182 case IOCTL_AFD_WINE_ACCEPT_INTO:
2183 {
2184 static const int access = FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | FILE_READ_DATA;
2185 const struct afd_accept_into_params *params = get_req_data();
2186 struct sock *acceptsock;
2187 unsigned int remote_len;
2188 struct accept_req *req;
2189
2190 if (get_req_data_size() != sizeof(*params) ||
2191 get_reply_max_size() < params->recv_len ||
2192 get_reply_max_size() - params->recv_len < params->local_len)
2193 {
2194 set_error( STATUS_BUFFER_TOO_SMALL );
2195 return;
2196 }
2197
2198 remote_len = get_reply_max_size() - params->recv_len - params->local_len;
2199 if (remote_len < sizeof(int))
2200 {
2201 set_error( STATUS_INVALID_PARAMETER );
2202 return;
2203 }
2204
2205 if (!(acceptsock = (struct sock *)get_handle_obj( current->process, params->accept_handle, access, &sock_ops )))
2206 return;
2207
2208 if (acceptsock->accept_recv_req)
2209 {
2210 release_object( acceptsock );
2211 set_error( STATUS_INVALID_PARAMETER );
2212 return;
2213 }
2214
2215 if (!(req = alloc_accept_req( sock, acceptsock, async, params )))
2216 {
2217 release_object( acceptsock );
2218 return;
2219 }
2220 list_add_tail( &sock->accept_list, &req->entry );
2221 acceptsock->accept_recv_req = req;
2222 release_object( acceptsock );
2223
2224 acceptsock->wparam = params->accept_handle;
2225 async_set_completion_callback( async, free_accept_req, req );
2226 queue_async( &sock->accept_q, async );
2227 sock_reselect( sock );
2228 set_error( STATUS_PENDING );
2229 return;
2230 }
2231
2232 case IOCTL_AFD_LISTEN:
2233 {
2234 const struct afd_listen_params *params = get_req_data();
2235
2236 if (get_req_data_size() < sizeof(*params))
2237 {
2238 set_error( STATUS_INVALID_PARAMETER );
2239 return;
2240 }
2241
2242 if (!sock->bound)
2243 {
2244 set_error( STATUS_INVALID_PARAMETER );
2245 return;
2246 }
2247
2248 if (listen( unix_fd, params->backlog ) < 0)
2249 {
2250 set_error( sock_get_ntstatus( errno ) );
2251 return;
2252 }
2253
2254 sock->state = SOCK_LISTENING;
2255
2256 /* a listening socket can no longer be accepted into */
2257 allow_fd_caching( sock->fd );
2258
2259 /* we may already be selecting for AFD_POLL_ACCEPT */
2260 sock_reselect( sock );
2261 return;
2262 }
2263
2264 case IOCTL_AFD_WINE_CONNECT:
2265 {
2266 const struct afd_connect_params *params = get_req_data();
2267 const struct WS_sockaddr *addr;
2268 union unix_sockaddr unix_addr;
2269 struct connect_req *req;
2270 socklen_t unix_len;
2271 int send_len, ret;
2272
2273 if (get_req_data_size() < sizeof(*params) ||
2274 get_req_data_size() - sizeof(*params) < params->addr_len)
2275 {
2276 set_error( STATUS_BUFFER_TOO_SMALL );
2277 return;
2278 }
2279 send_len = get_req_data_size() - sizeof(*params) - params->addr_len;
2280 addr = (const struct WS_sockaddr *)(params + 1);
2281
2282 if (!params->synchronous && !sock->bound)
2283 {
2284 set_error( STATUS_INVALID_PARAMETER );
2285 return;
2286 }
2287
2288 if (sock->accept_recv_req)
2289 {
2290 set_error( STATUS_INVALID_PARAMETER );
2291 return;
2292 }
2293
2294 if (sock->connect_req)
2295 {
2296 set_error( STATUS_INVALID_PARAMETER );
2297 return;
2298 }
2299
2300 switch (sock->state)
2301 {
2302 case SOCK_LISTENING:
2303 set_error( STATUS_INVALID_PARAMETER );
2304 return;
2305
2306 case SOCK_CONNECTING:
2307 /* FIXME: STATUS_ADDRESS_ALREADY_ASSOCIATED probably isn't right,
2308 * but there's no status code that maps to WSAEALREADY... */
2309 set_error( params->synchronous ? STATUS_ADDRESS_ALREADY_ASSOCIATED : STATUS_INVALID_PARAMETER );
2310 return;
2311
2312 case SOCK_CONNECTED:
2313 set_error( STATUS_CONNECTION_ACTIVE );
2314 return;
2315
2316 case SOCK_UNCONNECTED:
2317 case SOCK_CONNECTIONLESS:
2318 break;
2319 }
2320
2321 unix_len = sockaddr_to_unix( addr, params->addr_len, &unix_addr );
2322 if (!unix_len)
2323 {
2324 set_error( STATUS_INVALID_ADDRESS );
2325 return;
2326 }
2327 if (unix_addr.addr.sa_family == AF_INET && !memcmp( &unix_addr.in.sin_addr, magic_loopback_addr, 4 ))
2328 unix_addr.in.sin_addr.s_addr = htonl( INADDR_LOOPBACK );
2329
2330 ret = connect( unix_fd, &unix_addr.addr, unix_len );
2331 if (ret < 0 && errno != EINPROGRESS)
2332 {
2333 set_error( sock_get_ntstatus( errno ) );
2334 return;
2335 }
2336
2337 /* a connected or connecting socket can no longer be accepted into */
2338 allow_fd_caching( sock->fd );
2339
2340 unix_len = sizeof(unix_addr);
2341 if (!sock->bound && !getsockname( unix_fd, &unix_addr.addr, &unix_len ))
2342 sock->addr_len = sockaddr_from_unix( &unix_addr, &sock->addr.addr, sizeof(sock->addr) );
2343 sock->bound = 1;
2344
2345 if (!ret)
2346 {
2347 sock->state = SOCK_CONNECTED;
2348
2349 if (!send_len) return;
2350 }
2351
2352 sock->state = SOCK_CONNECTING;
2353
2354 if (params->synchronous && sock->nonblocking)
2355 {
2356 sock_reselect( sock );
2357 set_error( STATUS_DEVICE_NOT_READY );
2358 return;
2359 }
2360
2361 if (!(req = mem_alloc( sizeof(*req) )))
2362 return;
2363
2364 req->async = (struct async *)grab_object( async );
2365 req->iosb = async_get_iosb( async );
2366 req->sock = (struct sock *)grab_object( sock );
2367 req->addr_len = params->addr_len;
2368 req->send_len = send_len;
2369 req->send_cursor = 0;
2370
2371 async_set_completion_callback( async, free_connect_req, req );
2372 sock->connect_req = req;
2373 queue_async( &sock->connect_q, async );
2374 sock_reselect( sock );
2375 set_error( STATUS_PENDING );
2376 return;
2377 }
2378
2379 case IOCTL_AFD_WINE_SHUTDOWN:
2380 {
2381 unsigned int how;
2382
2383 if (get_req_data_size() < sizeof(int))
2384 {
2385 set_error( STATUS_BUFFER_TOO_SMALL );
2386 return;
2387 }
2388 how = *(int *)get_req_data();
2389
2390 if (how > SD_BOTH)
2391 {
2392 set_error( STATUS_INVALID_PARAMETER );
2393 return;
2394 }
2395
2396 if (sock->state != SOCK_CONNECTED && sock->state != SOCK_CONNECTIONLESS)
2397 {
2398 set_error( STATUS_INVALID_CONNECTION );
2399 return;
2400 }
2401
2402 if (how != SD_SEND)
2403 {
2404 sock->rd_shutdown = 1;
2405 }
2406 if (how != SD_RECEIVE)
2407 {
2408 sock->wr_shutdown = 1;
2409 if (list_empty( &sock->write_q.queue ))
2410 shutdown( unix_fd, SHUT_WR );
2411 else
2412 sock->wr_shutdown_pending = 1;
2413 }
2414
2415 if (how == SD_BOTH)
2416 {
2417 if (sock->event) release_object( sock->event );
2418 sock->event = NULL;
2419 sock->window = 0;
2420 sock->mask = 0;
2421 sock->nonblocking = 1;
2422 }
2423
2424 sock_reselect( sock );
2425 return;
2426 }
2427
2428 case IOCTL_AFD_WINE_ADDRESS_LIST_CHANGE:
2429 {
2430 int force_async;
2431
2432 if (get_req_data_size() < sizeof(int))
2433 {
2434 set_error( STATUS_BUFFER_TOO_SMALL );
2435 return;
2436 }
2437 force_async = *(int *)get_req_data();
2438
2439 if (sock->nonblocking && !force_async)
2440 {
2441 set_error( STATUS_DEVICE_NOT_READY );
2442 return;
2443 }
2444 if (!sock_get_ifchange( sock )) return;
2445 queue_async( &sock->ifchange_q, async );
2446 set_error( STATUS_PENDING );
2447 return;
2448 }
2449
2450 case IOCTL_AFD_WINE_FIONBIO:
2451 if (get_req_data_size() < sizeof(int))
2452 {
2453 set_error( STATUS_BUFFER_TOO_SMALL );
2454 return;
2455 }
2456 if (*(int *)get_req_data())
2457 {
2458 sock->nonblocking = 1;
2459 }
2460 else
2461 {
2462 if (sock->mask)
2463 {
2464 set_error( STATUS_INVALID_PARAMETER );
2465 return;
2466 }
2467 sock->nonblocking = 0;
2468 }
2469 return;
2470
2471 case IOCTL_AFD_GET_EVENTS:
2472 {
2473 struct afd_get_events_params params = {0};
2474 unsigned int i;
2475
2476 if (get_reply_max_size() < sizeof(params))
2477 {
2478 set_error( STATUS_INVALID_PARAMETER );
2479 return;
2480 }
2481
2482 params.flags = sock->pending_events & sock->mask;
2483 for (i = 0; i < ARRAY_SIZE( params.status ); ++i)
2484 params.status[i] = sock_get_ntstatus( sock->errors[i] );
2485
2486 sock->pending_events = 0;
2487 sock_reselect( sock );
2488
2489 set_reply_data( &params, sizeof(params) );
2490 return;
2491 }
2492
2493 case IOCTL_AFD_EVENT_SELECT:
2494 {
2495 struct event *event = NULL;
2496 obj_handle_t event_handle;
2497 int mask;
2498
2499 set_async_pending( async );
2500
2501 if (is_machine_64bit( current->process->machine ))
2502 {
2503 const struct afd_event_select_params_64 *params = get_req_data();
2504
2505 if (get_req_data_size() < sizeof(*params))
2506 {
2507 set_error( STATUS_INVALID_PARAMETER );
2508 return;
2509 }
2510
2511 event_handle = params->event;
2512 mask = params->mask;
2513 }
2514 else
2515 {
2516 const struct afd_event_select_params_32 *params = get_req_data();
2517
2518 if (get_req_data_size() < sizeof(*params))
2519 {
2520 set_error( STATUS_INVALID_PARAMETER );
2521 return;
2522 }
2523
2524 event_handle = params->event;
2525 mask = params->mask;
2526 }
2527
2528 if ((event_handle || mask) &&
2529 !(event = get_event_obj( current->process, event_handle, EVENT_MODIFY_STATE )))
2530 {
2531 set_error( STATUS_INVALID_PARAMETER );
2532 return;
2533 }
2534
2535 if (sock->event) release_object( sock->event );
2536 sock->event = event;
2537 sock->mask = mask;
2538 sock->window = 0;
2539 sock->message = 0;
2540 sock->wparam = 0;
2541 sock->nonblocking = 1;
2542
2543 sock_reselect( sock );
2544
2545 return;
2546 }
2547
2548 case IOCTL_AFD_WINE_MESSAGE_SELECT:
2549 {
2550 const struct afd_message_select_params *params = get_req_data();
2551
2552 if (get_req_data_size() < sizeof(params))
2553 {
2554 set_error( STATUS_BUFFER_TOO_SMALL );
2555 return;
2556 }
2557
2558 if (sock->event) release_object( sock->event );
2559
2560 if (params->window)
2561 {
2562 sock->pending_events = 0;
2563 sock->reported_events = 0;
2564 }
2565 sock->event = NULL;
2566 sock->mask = params->mask;
2567 sock->window = params->window;
2568 sock->message = params->message;
2569 sock->wparam = params->handle;
2570 sock->nonblocking = 1;
2571
2572 sock_reselect( sock );
2573
2574 return;
2575 }
2576
2577 case IOCTL_AFD_BIND:
2578 {
2579 const struct afd_bind_params *params = get_req_data();
2580 union unix_sockaddr unix_addr, bind_addr;
2581 data_size_t in_size;
2582 socklen_t unix_len;
2583
2584 /* the ioctl is METHOD_NEITHER, so ntdll gives us the output buffer as
2585 * input */
2586 if (get_req_data_size() < get_reply_max_size())
2587 {
2588 set_error( STATUS_BUFFER_TOO_SMALL );
2589 return;
2590 }
2591 in_size = get_req_data_size() - get_reply_max_size();
2592 if (in_size < offsetof(struct afd_bind_params, addr.sa_data)
2593 || get_reply_max_size() < in_size - sizeof(int))
2594 {
2595 set_error( STATUS_INVALID_PARAMETER );
2596 return;
2597 }
2598
2599 if (sock->bound)
2600 {
2601 set_error( STATUS_ADDRESS_ALREADY_ASSOCIATED );
2602 return;
2603 }
2604
2605 unix_len = sockaddr_to_unix( &params->addr, in_size - sizeof(int), &unix_addr );
2606 if (!unix_len)
2607 {
2608 set_error( STATUS_INVALID_ADDRESS );
2609 return;
2610 }
2611 bind_addr = unix_addr;
2612
2613 if (unix_addr.addr.sa_family == AF_INET)
2614 {
2615 if (!memcmp( &unix_addr.in.sin_addr, magic_loopback_addr, 4 )
2616 || bind_to_interface( sock, &unix_addr.in ))
2617 bind_addr.in.sin_addr.s_addr = htonl( INADDR_ANY );
2618 }
2619 else if (unix_addr.addr.sa_family == AF_INET6)
2620 {
2621 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
2622 /* Windows allows specifying zero to use the default scope. Linux
2623 * interprets it as an interface index and requires that it be
2624 * nonzero. */
2625 if (!unix_addr.in6.sin6_scope_id)
2626 bind_addr.in6.sin6_scope_id = get_ipv6_interface_index( &unix_addr.in6.sin6_addr );
2627 #endif
2628 }
2629
2630 set_async_pending( async );
2631
2632 if (bind( unix_fd, &bind_addr.addr, unix_len ) < 0)
2633 {
2634 if (errno == EADDRINUSE)
2635 {
2636 int reuse;
2637 socklen_t len = sizeof(reuse);
2638
2639 if (!getsockopt( unix_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, &len ) && reuse)
2640 errno = EACCES;
2641 }
2642
2643 set_error( sock_get_ntstatus( errno ) );
2644 return;
2645 }
2646
2647 sock->bound = 1;
2648
2649 unix_len = sizeof(bind_addr);
2650 if (!getsockname( unix_fd, &bind_addr.addr, &unix_len ))
2651 {
2652 /* store the interface or magic loopback address instead of the
2653 * actual unix address */
2654 if (bind_addr.addr.sa_family == AF_INET)
2655 bind_addr.in.sin_addr = unix_addr.in.sin_addr;
2656 sock->addr_len = sockaddr_from_unix( &bind_addr, &sock->addr.addr, sizeof(sock->addr) );
2657 }
2658
2659 if (get_reply_max_size() >= sock->addr_len)
2660 set_reply_data( &sock->addr, sock->addr_len );
2661 return;
2662 }
2663
2664 case IOCTL_AFD_GETSOCKNAME:
2665 if (!sock->bound)
2666 {
2667 set_error( STATUS_INVALID_PARAMETER );
2668 return;
2669 }
2670
2671 if (get_reply_max_size() < sock->addr_len)
2672 {
2673 set_error( STATUS_BUFFER_TOO_SMALL );
2674 return;
2675 }
2676
2677 set_reply_data( &sock->addr, sock->addr_len );
2678 return;
2679
2680 case IOCTL_AFD_WINE_DEFER:
2681 {
2682 const obj_handle_t *handle = get_req_data();
2683 struct sock *acceptsock;
2684
2685 if (get_req_data_size() < sizeof(*handle))
2686 {
2687 set_error( STATUS_BUFFER_TOO_SMALL );
2688 return;
2689 }
2690
2691 acceptsock = (struct sock *)get_handle_obj( current->process, *handle, 0, &sock_ops );
2692 if (!acceptsock) return;
2693
2694 sock->deferred = acceptsock;
2695 return;
2696 }
2697
2698 case IOCTL_AFD_WINE_GET_INFO:
2699 {
2700 struct afd_get_info_params params;
2701
2702 if (get_reply_max_size() < sizeof(params))
2703 {
2704 set_error( STATUS_BUFFER_TOO_SMALL );
2705 return;
2706 }
2707
2708 params.family = sock->family;
2709 params.type = sock->type;
2710 params.protocol = sock->proto;
2711 set_reply_data( &params, sizeof(params) );
2712 return;
2713 }
2714
2715 case IOCTL_AFD_WINE_GET_SO_ACCEPTCONN:
2716 {
2717 int listening = (sock->state == SOCK_LISTENING);
2718
2719 if (get_reply_max_size() < sizeof(listening))
2720 {
2721 set_error( STATUS_BUFFER_TOO_SMALL );
2722 return;
2723 }
2724
2725 set_reply_data( &listening, sizeof(listening) );
2726 return;
2727 }
2728
2729 case IOCTL_AFD_WINE_GET_SO_ERROR:
2730 {
2731 int error;
2732 socklen_t len = sizeof(error);
2733 unsigned int i;
2734
2735 if (get_reply_max_size() < sizeof(error))
2736 {
2737 set_error( STATUS_BUFFER_TOO_SMALL );
2738 return;
2739 }
2740
2741 if (getsockopt( unix_fd, SOL_SOCKET, SO_ERROR, (char *)&error, &len ) < 0)
2742 {
2743 set_error( sock_get_ntstatus( errno ) );
2744 return;
2745 }
2746
2747 if (!error)
2748 {
2749 for (i = 0; i < ARRAY_SIZE( sock->errors ); ++i)
2750 {
2751 if (sock->errors[i])
2752 {
2753 error = sock_get_error( sock->errors[i] );
2754 break;
2755 }
2756 }
2757 }
2758
2759 set_reply_data( &error, sizeof(error) );
2760 return;
2761 }
2762
2763 case IOCTL_AFD_WINE_GET_SO_RCVBUF:
2764 {
2765 int rcvbuf = sock->rcvbuf;
2766
2767 if (get_reply_max_size() < sizeof(rcvbuf))
2768 {
2769 set_error( STATUS_BUFFER_TOO_SMALL );
2770 return;
2771 }
2772
2773 set_reply_data( &rcvbuf, sizeof(rcvbuf) );
2774 return;
2775 }
2776
2777 case IOCTL_AFD_WINE_SET_SO_RCVBUF:
2778 {
2779 DWORD rcvbuf;
2780
2781 if (get_req_data_size() < sizeof(rcvbuf))
2782 {
2783 set_error( STATUS_BUFFER_TOO_SMALL );
2784 return;
2785 }
2786 rcvbuf = *(DWORD *)get_req_data();
2787
2788 if (!setsockopt( unix_fd, SOL_SOCKET, SO_RCVBUF, (char *)&rcvbuf, sizeof(rcvbuf) ))
2789 sock->rcvbuf = rcvbuf;
2790 else
2791 set_error( sock_get_ntstatus( errno ) );
2792 return;
2793 }
2794
2795 case IOCTL_AFD_WINE_GET_SO_RCVTIMEO:
2796 {
2797 DWORD rcvtimeo = sock->rcvtimeo;
2798
2799 if (get_reply_max_size() < sizeof(rcvtimeo))
2800 {
2801 set_error( STATUS_BUFFER_TOO_SMALL );
2802 return;
2803 }
2804
2805 set_reply_data( &rcvtimeo, sizeof(rcvtimeo) );
2806 return;
2807 }
2808
2809 case IOCTL_AFD_WINE_SET_SO_RCVTIMEO:
2810 {
2811 DWORD rcvtimeo;
2812
2813 if (get_req_data_size() < sizeof(rcvtimeo))
2814 {
2815 set_error( STATUS_BUFFER_TOO_SMALL );
2816 return;
2817 }
2818 rcvtimeo = *(DWORD *)get_req_data();
2819
2820 sock->rcvtimeo = rcvtimeo;
2821 return;
2822 }
2823
2824 case IOCTL_AFD_WINE_GET_SO_SNDBUF:
2825 {
2826 int sndbuf = sock->sndbuf;
2827
2828 if (get_reply_max_size() < sizeof(sndbuf))
2829 {
2830 set_error( STATUS_BUFFER_TOO_SMALL );
2831 return;
2832 }
2833
2834 set_reply_data( &sndbuf, sizeof(sndbuf) );
2835 return;
2836 }
2837
2838 case IOCTL_AFD_WINE_SET_SO_SNDBUF:
2839 {
2840 DWORD sndbuf;
2841
2842 if (get_req_data_size() < sizeof(sndbuf))
2843 {
2844 set_error( STATUS_BUFFER_TOO_SMALL );
2845 return;
2846 }
2847 sndbuf = *(DWORD *)get_req_data();
2848
2849 #ifdef __APPLE__
2850 if (!sndbuf)
2851 {
2852 /* setsockopt fails if a zero value is passed */
2853 sock->sndbuf = sndbuf;
2854 return;
2855 }
2856 #endif
2857
2858 if (!setsockopt( unix_fd, SOL_SOCKET, SO_SNDBUF, (char *)&sndbuf, sizeof(sndbuf) ))
2859 sock->sndbuf = sndbuf;
2860 else
2861 set_error( sock_get_ntstatus( errno ) );
2862 return;
2863 }
2864
2865 case IOCTL_AFD_WINE_GET_SO_SNDTIMEO:
2866 {
2867 DWORD sndtimeo = sock->sndtimeo;
2868
2869 if (get_reply_max_size() < sizeof(sndtimeo))
2870 {
2871 set_error( STATUS_BUFFER_TOO_SMALL );
2872 return;
2873 }
2874
2875 set_reply_data( &sndtimeo, sizeof(sndtimeo) );
2876 return;
2877 }
2878
2879 case IOCTL_AFD_WINE_SET_SO_SNDTIMEO:
2880 {
2881 DWORD sndtimeo;
2882
2883 if (get_req_data_size() < sizeof(sndtimeo))
2884 {
2885 set_error( STATUS_BUFFER_TOO_SMALL );
2886 return;
2887 }
2888 sndtimeo = *(DWORD *)get_req_data();
2889
2890 sock->sndtimeo = sndtimeo;
2891 return;
2892 }
2893
2894 case IOCTL_AFD_WINE_GET_SO_CONNECT_TIME:
2895 {
2896 DWORD time = ~0u;
2897
2898 if (get_reply_max_size() < sizeof(time))
2899 {
2900 set_error( STATUS_BUFFER_TOO_SMALL );
2901 return;
2902 }
2903
2904 if (sock->state == SOCK_CONNECTED)
2905 time = (current_time - sock->connect_time) / 10000000;
2906
2907 set_reply_data( &time, sizeof(time) );
2908 return;
2909 }
2910
2911 case IOCTL_AFD_POLL:
2912 {
2913 if (get_reply_max_size() < get_req_data_size())
2914 {
2915 set_error( STATUS_INVALID_PARAMETER );
2916 return;
2917 }
2918
2919 if (is_machine_64bit( current->process->machine ))
2920 {
2921 const struct afd_poll_params_64 *params = get_req_data();
2922
2923 if (get_req_data_size() < sizeof(struct afd_poll_params_64) ||
2924 get_req_data_size() < offsetof( struct afd_poll_params_64, sockets[params->count] ))
2925 {
2926 set_error( STATUS_INVALID_PARAMETER );
2927 return;
2928 }
2929
2930 poll_socket( sock, async, params->exclusive, params->timeout, params->count, params->sockets );
2931 }
2932 else
2933 {
2934 const struct afd_poll_params_32 *params = get_req_data();
2935 struct afd_poll_socket_64 *sockets;
2936 unsigned int i;
2937
2938 if (get_req_data_size() < sizeof(struct afd_poll_params_32) ||
2939 get_req_data_size() < offsetof( struct afd_poll_params_32, sockets[params->count] ))
2940 {
2941 set_error( STATUS_INVALID_PARAMETER );
2942 return;
2943 }
2944
2945 if (!(sockets = mem_alloc( params->count * sizeof(*sockets) ))) return;
2946 for (i = 0; i < params->count; ++i)
2947 {
2948 sockets[i].socket = params->sockets[i].socket;
2949 sockets[i].flags = params->sockets[i].flags;
2950 sockets[i].status = params->sockets[i].status;
2951 }
2952
2953 poll_socket( sock, async, params->exclusive, params->timeout, params->count, sockets );
2954 free( sockets );
2955 }
2956
2957 return;
2958 }
2959
2960 default:
2961 set_error( STATUS_NOT_SUPPORTED );
2962 return;
2963 }
2964 }
2965
2966 static int poll_single_socket( struct sock *sock, int mask )
2967 {
2968 struct pollfd pollfd;
2969
2970 pollfd.fd = get_unix_fd( sock->fd );
2971 pollfd.events = poll_flags_from_afd( sock, mask );
2972 if (pollfd.events < 0 || poll( &pollfd, 1, 0 ) < 0)
2973 return 0;
2974
2975 if ((mask & AFD_POLL_HUP) && (pollfd.revents & POLLIN) && sock->type == WS_SOCK_STREAM)
2976 {
2977 char dummy;
2978
2979 if (!recv( get_unix_fd( sock->fd ), &dummy, 1, MSG_PEEK ))
2980 {
2981 pollfd.revents &= ~POLLIN;
2982 pollfd.revents |= POLLHUP;
2983 }
2984 }
2985
2986 return get_poll_flags( sock, pollfd.revents ) & mask;
2987 }
2988
2989 static void handle_exclusive_poll(struct poll_req *req)
2990 {
2991 unsigned int i;
2992
2993 for (i = 0; i < req->count; ++i)
2994 {
2995 struct sock *sock = req->sockets[i].sock;
2996 struct poll_req *main_poll = sock->main_poll;
2997
2998 if (main_poll && main_poll->exclusive && req->exclusive)
2999 {
3000 complete_async_poll( main_poll, STATUS_SUCCESS );
3001 main_poll = NULL;
3002 }
3003
3004 if (!main_poll)
3005 sock->main_poll = req;
3006 }
3007 }
3008
3009 static void poll_socket( struct sock *poll_sock, struct async *async, int exclusive, timeout_t timeout,
3010 unsigned int count, const struct afd_poll_socket_64 *sockets )
3011 {
3012 BOOL signaled = FALSE;
3013 struct poll_req *req;
3014 unsigned int i, j;
3015
3016 if (!count)
3017 {
3018 set_error( STATUS_INVALID_PARAMETER );
3019 return;
3020 }
3021
3022 if (!(req = mem_alloc( offsetof( struct poll_req, sockets[count] ) )))
3023 return;
3024
3025 req->timeout = NULL;
3026 if (timeout && timeout != TIMEOUT_INFINITE &&
3027 !(req->timeout = add_timeout_user( timeout, async_poll_timeout, req )))
3028 {
3029 free( req );
3030 return;
3031 }
3032 req->orig_timeout = timeout;
3033
3034 for (i = 0; i < count; ++i)
3035 {
3036 req->sockets[i].sock = (struct sock *)get_handle_obj( current->process, sockets[i].socket, 0, &sock_ops );
3037 if (!req->sockets[i].sock)
3038 {
3039 for (j = 0; j < i; ++j) release_object( req->sockets[i].sock );
3040 if (req->timeout) remove_timeout_user( req->timeout );
3041 free( req );
3042 return;
3043 }
3044 req->sockets[i].handle = sockets[i].socket;
3045 req->sockets[i].mask = sockets[i].flags;
3046 req->sockets[i].flags = 0;
3047 }
3048
3049 req->exclusive = exclusive;
3050 req->count = count;
3051 req->async = (struct async *)grab_object( async );
3052 req->iosb = async_get_iosb( async );
3053
3054 handle_exclusive_poll(req);
3055
3056 list_add_tail( &poll_list, &req->entry );
3057 async_set_completion_callback( async, free_poll_req, req );
3058 queue_async( &poll_sock->poll_q, async );
3059
3060 for (i = 0; i < count; ++i)
3061 {
3062 struct sock *sock = req->sockets[i].sock;
3063 int mask = req->sockets[i].mask;
3064 int flags = poll_single_socket( sock, mask );
3065
3066 if (flags)
3067 {
3068 signaled = TRUE;
3069 req->sockets[i].flags = flags;
3070 req->sockets[i].status = sock_get_ntstatus( sock_error( sock->fd ) );
3071 }
3072
3073 /* FIXME: do other error conditions deserve a similar treatment? */
3074 if (sock->state != SOCK_CONNECTING && sock->errors[AFD_POLL_BIT_CONNECT_ERR] && (mask & AFD_POLL_CONNECT_ERR))
3075 {
3076 signaled = TRUE;
3077 req->sockets[i].flags |= AFD_POLL_CONNECT_ERR;
3078 req->sockets[i].status = sock_get_ntstatus( sock->errors[AFD_POLL_BIT_CONNECT_ERR] );
3079 }
3080 }
3081
3082 if (!timeout || signaled)
3083 complete_async_poll( req, STATUS_SUCCESS );
3084
3085 for (i = 0; i < req->count; ++i)
3086 sock_reselect( req->sockets[i].sock );
3087 set_error( STATUS_PENDING );
3088 }
3089
3090 #ifdef HAVE_LINUX_RTNETLINK_H
3091
3092 /* only keep one ifchange object around, all sockets waiting for wakeups will look to it */
3093 static struct object *ifchange_object;
3094
3095 static void ifchange_dump( struct object *obj, int verbose );
3096 static struct fd *ifchange_get_fd( struct object *obj );
3097 static void ifchange_destroy( struct object *obj );
3098
3099 static int ifchange_get_poll_events( struct fd *fd );
3100 static void ifchange_poll_event( struct fd *fd, int event );
3101
3102 struct ifchange
3103 {
3104 struct object obj; /* object header */
3105 struct fd *fd; /* interface change file descriptor */
3106 struct list sockets; /* list of sockets to send interface change notifications */
3107 };
3108
3109 static const struct object_ops ifchange_ops =
3110 {
3111 sizeof(struct ifchange), /* size */
3112 &no_type, /* type */
3113 ifchange_dump, /* dump */
3114 no_add_queue, /* add_queue */
3115 NULL, /* remove_queue */
3116 NULL, /* signaled */
3117 no_satisfied, /* satisfied */
3118 no_signal, /* signal */
3119 ifchange_get_fd, /* get_fd */
3120 default_map_access, /* map_access */
3121 default_get_sd, /* get_sd */
3122 default_set_sd, /* set_sd */
3123 no_get_full_name, /* get_full_name */
3124 no_lookup_name, /* lookup_name */
3125 no_link_name, /* link_name */
3126 NULL, /* unlink_name */
3127 no_open_file, /* open_file */
3128 no_kernel_obj_list, /* get_kernel_obj_list */
3129 no_close_handle, /* close_handle */
3130 ifchange_destroy /* destroy */
3131 };
3132
3133 static const struct fd_ops ifchange_fd_ops =
3134 {
3135 ifchange_get_poll_events, /* get_poll_events */
3136 ifchange_poll_event, /* poll_event */
3137 NULL, /* get_fd_type */
3138 no_fd_read, /* read */
3139 no_fd_write, /* write */
3140 no_fd_flush, /* flush */
3141 no_fd_get_file_info, /* get_file_info */
3142 no_fd_get_volume_info, /* get_volume_info */
3143 no_fd_ioctl, /* ioctl */
3144 NULL, /* cancel_async */
3145 NULL, /* queue_async */
3146 NULL /* reselect_async */
3147 };
3148
3149 static void ifchange_dump( struct object *obj, int verbose )
3150 {
3151 assert( obj->ops == &ifchange_ops );
3152 fprintf( stderr, "Interface change\n" );
3153 }
3154
3155 static struct fd *ifchange_get_fd( struct object *obj )
3156 {
3157 struct ifchange *ifchange = (struct ifchange *)obj;
3158 return (struct fd *)grab_object( ifchange->fd );
3159 }
3160
3161 static void ifchange_destroy( struct object *obj )
3162 {
3163 struct ifchange *ifchange = (struct ifchange *)obj;
3164 assert( obj->ops == &ifchange_ops );
3165
3166 release_object( ifchange->fd );
3167
3168 /* reset the global ifchange object so that it will be recreated if it is needed again */
3169 assert( obj == ifchange_object );
3170 ifchange_object = NULL;
3171 }
3172
3173 static int ifchange_get_poll_events( struct fd *fd )
3174 {
3175 return POLLIN;
3176 }
3177
3178 /* wake up all the sockets waiting for a change notification event */
3179 static void ifchange_wake_up( struct object *obj, unsigned int status )
3180 {
3181 struct ifchange *ifchange = (struct ifchange *)obj;
3182 struct list *ptr, *next;
3183 assert( obj->ops == &ifchange_ops );
3184 assert( obj == ifchange_object );
3185
3186 LIST_FOR_EACH_SAFE( ptr, next, &ifchange->sockets )
3187 {
3188 struct sock *sock = LIST_ENTRY( ptr, struct sock, ifchange_entry );
3189
3190 assert( sock->ifchange_obj );
3191 async_wake_up( &sock->ifchange_q, status ); /* issue ifchange notification for the socket */
3192 sock_release_ifchange( sock ); /* remove socket from list and decrement ifchange refcount */
3193 }
3194 }
3195
3196 static void ifchange_poll_event( struct fd *fd, int event )
3197 {
3198 struct object *ifchange = get_fd_user( fd );
3199 unsigned int status = STATUS_PENDING;
3200 char buffer[PIPE_BUF];
3201 int r;
3202
3203 r = recv( get_unix_fd(fd), buffer, sizeof(buffer), MSG_DONTWAIT );
3204 if (r < 0)
3205 {
3206 if (errno == EWOULDBLOCK || (EWOULDBLOCK != EAGAIN && errno == EAGAIN))
3207 return; /* retry when poll() says the socket is ready */
3208 status = sock_get_ntstatus( errno );
3209 }
3210 else if (r > 0)
3211 {
3212 struct nlmsghdr *nlh;
3213
3214 for (nlh = (struct nlmsghdr *)buffer; NLMSG_OK(nlh, r); nlh = NLMSG_NEXT(nlh, r))
3215 {
3216 if (nlh->nlmsg_type == NLMSG_DONE)
3217 break;
3218 if (nlh->nlmsg_type == RTM_NEWADDR || nlh->nlmsg_type == RTM_DELADDR)
3219 status = STATUS_SUCCESS;
3220 }
3221 }
3222 else status = STATUS_CANCELLED;
3223
3224 if (status != STATUS_PENDING) ifchange_wake_up( ifchange, status );
3225 }
3226
3227 #endif
3228
3229 /* we only need one of these interface notification objects, all of the sockets dependent upon
3230 * it will wake up when a notification event occurs */
3231 static struct object *get_ifchange( void )
3232 {
3233 #ifdef HAVE_LINUX_RTNETLINK_H
3234 struct ifchange *ifchange;
3235 struct sockaddr_nl addr;
3236 int unix_fd;
3237
3238 if (ifchange_object)
3239 {
3240 /* increment the refcount for each socket that uses the ifchange object */
3241 return grab_object( ifchange_object );
3242 }
3243
3244 /* create the socket we need for processing interface change notifications */
3245 unix_fd = socket( PF_NETLINK, SOCK_RAW, NETLINK_ROUTE );
3246 if (unix_fd == -1)
3247 {
3248 set_error( sock_get_ntstatus( errno ));
3249 return NULL;
3250 }
3251 fcntl( unix_fd, F_SETFL, O_NONBLOCK ); /* make socket nonblocking */
3252 memset( &addr, 0, sizeof(addr) );
3253 addr.nl_family = AF_NETLINK;
3254 addr.nl_groups = RTMGRP_IPV4_IFADDR;
3255 /* bind the socket to the special netlink kernel interface */
3256 if (bind( unix_fd, (struct sockaddr *)&addr, sizeof(addr) ) == -1)
3257 {
3258 close( unix_fd );
3259 set_error( sock_get_ntstatus( errno ));
3260 return NULL;
3261 }
3262 if (!(ifchange = alloc_object( &ifchange_ops )))
3263 {
3264 close( unix_fd );
3265 set_error( STATUS_NO_MEMORY );
3266 return NULL;
3267 }
3268 list_init( &ifchange->sockets );
3269 if (!(ifchange->fd = create_anonymous_fd( &ifchange_fd_ops, unix_fd, &ifchange->obj, 0 )))
3270 {
3271 release_object( ifchange );
3272 set_error( STATUS_NO_MEMORY );
3273 return NULL;
3274 }
3275 set_fd_events( ifchange->fd, POLLIN ); /* enable read wakeup on the file descriptor */
3276
3277 /* the ifchange object is now successfully configured */
3278 ifchange_object = &ifchange->obj;
3279 return &ifchange->obj;
3280 #else
3281 set_error( STATUS_NOT_SUPPORTED );
3282 return NULL;
3283 #endif
3284 }
3285
3286 /* add the socket to the interface change notification list */
3287 static void ifchange_add_sock( struct object *obj, struct sock *sock )
3288 {
3289 #ifdef HAVE_LINUX_RTNETLINK_H
3290 struct ifchange *ifchange = (struct ifchange *)obj;
3291
3292 list_add_tail( &ifchange->sockets, &sock->ifchange_entry );
3293 #endif
3294 }
3295
3296 /* create a new ifchange queue for a specific socket or, if one already exists, reuse the existing one */
3297 static struct object *sock_get_ifchange( struct sock *sock )
3298 {
3299 struct object *ifchange;
3300
3301 if (sock->ifchange_obj) /* reuse existing ifchange_obj for this socket */
3302 return sock->ifchange_obj;
3303
3304 if (!(ifchange = get_ifchange()))
3305 return NULL;
3306
3307 /* add the socket to the ifchange notification list */
3308 ifchange_add_sock( ifchange, sock );
3309 sock->ifchange_obj = ifchange;
3310 return ifchange;
3311 }
3312
3313 /* destroy an existing ifchange queue for a specific socket */
3314 static void sock_release_ifchange( struct sock *sock )
3315 {
3316 if (sock->ifchange_obj)
3317 {
3318 list_remove( &sock->ifchange_entry );
3319 release_object( sock->ifchange_obj );
3320 sock->ifchange_obj = NULL;
3321 }
3322 }
3323
3324 static void socket_device_dump( struct object *obj, int verbose );
3325 static struct object *socket_device_lookup_name( struct object *obj, struct unicode_str *name,
3326 unsigned int attr, struct object *root );
3327 static struct object *socket_device_open_file( struct object *obj, unsigned int access,
3328 unsigned int sharing, unsigned int options );
3329
3330 static const struct object_ops socket_device_ops =
3331 {
3332 sizeof(struct object), /* size */
3333 &device_type, /* type */
3334 socket_device_dump, /* dump */
3335 no_add_queue, /* add_queue */
3336 NULL, /* remove_queue */
3337 NULL, /* signaled */
3338 no_satisfied, /* satisfied */
3339 no_signal, /* signal */
3340 no_get_fd, /* get_fd */
3341 default_map_access, /* map_access */
3342 default_get_sd, /* get_sd */
3343 default_set_sd, /* set_sd */
3344 default_get_full_name, /* get_full_name */
3345 socket_device_lookup_name, /* lookup_name */
3346 directory_link_name, /* link_name */
3347 default_unlink_name, /* unlink_name */
3348 socket_device_open_file, /* open_file */
3349 no_kernel_obj_list, /* get_kernel_obj_list */
3350 no_close_handle, /* close_handle */
3351 no_destroy /* destroy */
3352 };
3353
3354 static void socket_device_dump( struct object *obj, int verbose )
3355 {
3356 fputs( "Socket device\n", stderr );
3357 }
3358
3359 static struct object *socket_device_lookup_name( struct object *obj, struct unicode_str *name,
3360 unsigned int attr, struct object *root )
3361 {
3362 if (name) name->len = 0;
3363 return NULL;
3364 }
3365
3366 static struct object *socket_device_open_file( struct object *obj, unsigned int access,
3367 unsigned int sharing, unsigned int options )
3368 {
3369 struct sock *sock;
3370
3371 if (!(sock = create_socket())) return NULL;
3372 if (!(sock->fd = alloc_pseudo_fd( &sock_fd_ops, &sock->obj, options )))
3373 {
3374 release_object( sock );
3375 return NULL;
3376 }
3377 return &sock->obj;
3378 }
3379
3380 struct object *create_socket_device( struct object *root, const struct unicode_str *name,
3381 unsigned int attr, const struct security_descriptor *sd )
3382 {
3383 return create_named_object( root, &socket_device_ops, name, attr, sd );
3384 }
3385
3386 DECL_HANDLER(recv_socket)
3387 {
3388 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->async.handle, 0, &sock_ops );
3389 unsigned int status = req->status;
3390 timeout_t timeout = 0;
3391 struct async *async;
3392 struct fd *fd;
3393
3394 if (!sock) return;
3395 fd = sock->fd;
3396
3397 /* recv() returned EWOULDBLOCK, i.e. no data available yet */
3398 if (status == STATUS_DEVICE_NOT_READY && !sock->nonblocking)
3399 {
3400 /* Set a timeout on the async if necessary.
3401 *
3402 * We want to do this *only* if the client gave us STATUS_DEVICE_NOT_READY.
3403 * If the client gave us STATUS_PENDING, it expects the async to always
3404 * block (it was triggered by WSARecv*() with a valid OVERLAPPED
3405 * structure) and for the timeout not to be respected. */
3406 if (is_fd_overlapped( fd ))
3407 timeout = (timeout_t)sock->rcvtimeo * -10000;
3408
3409 status = STATUS_PENDING;
3410 }
3411
3412 if ((status == STATUS_PENDING || status == STATUS_DEVICE_NOT_READY) && sock->rd_shutdown)
3413 status = STATUS_PIPE_DISCONNECTED;
3414
3415 sock->pending_events &= ~(req->oob ? AFD_POLL_OOB : AFD_POLL_READ);
3416 sock->reported_events &= ~(req->oob ? AFD_POLL_OOB : AFD_POLL_READ);
3417
3418 if ((async = create_request_async( fd, get_fd_comp_flags( fd ), &req->async )))
3419 {
3420 if (status == STATUS_SUCCESS)
3421 {
3422 struct iosb *iosb = async_get_iosb( async );
3423 iosb->result = req->total;
3424 release_object( iosb );
3425 }
3426 set_error( status );
3427
3428 if (timeout)
3429 async_set_timeout( async, timeout, STATUS_IO_TIMEOUT );
3430
3431 if (status == STATUS_PENDING)
3432 queue_async( &sock->read_q, async );
3433
3434 /* always reselect; we changed reported_events above */
3435 sock_reselect( sock );
3436
3437 reply->wait = async_handoff( async, NULL, 0 );
3438 reply->options = get_fd_options( fd );
3439 release_object( async );
3440 }
3441 release_object( sock );
3442 }
3443
3444 DECL_HANDLER(send_socket)
3445 {
3446 struct sock *sock = (struct sock *)get_handle_obj( current->process, req->async.handle, 0, &sock_ops );
3447 unsigned int status = req->status;
3448 timeout_t timeout = 0;
3449 struct async *async;
3450 struct fd *fd;
3451
3452 if (!sock) return;
3453 fd = sock->fd;
3454
3455 if (sock->type == WS_SOCK_DGRAM)
3456 {
3457 /* sendto() and sendmsg() implicitly binds a socket */
3458 union unix_sockaddr unix_addr;
3459 socklen_t unix_len = sizeof(unix_addr);
3460
3461 if (!sock->bound && !getsockname( get_unix_fd( fd ), &unix_addr.addr, &unix_len ))
3462 sock->addr_len = sockaddr_from_unix( &unix_addr, &sock->addr.addr, sizeof(sock->addr) );
3463 sock->bound = 1;
3464 }
3465
3466 if (status != STATUS_SUCCESS)
3467 {
3468 /* send() calls only clear and reselect events if unsuccessful. */
3469 sock->pending_events &= ~AFD_POLL_WRITE;
3470 sock->reported_events &= ~AFD_POLL_WRITE;
3471 }
3472
3473 /* If we had a short write and the socket is nonblocking (and the client is
3474 * not trying to force the operation to be asynchronous), return success.
3475 * Windows actually refuses to send any data in this case, and returns
3476 * EWOULDBLOCK, but we have no way of doing that. */
3477 if (status == STATUS_DEVICE_NOT_READY && req->total && sock->nonblocking)
3478 status = STATUS_SUCCESS;
3479
3480 /* send() returned EWOULDBLOCK or a short write, i.e. cannot send all data yet */
3481 if (status == STATUS_DEVICE_NOT_READY && !sock->nonblocking)
3482 {
3483 /* Set a timeout on the async if necessary.
3484 *
3485 * We want to do this *only* if the client gave us STATUS_DEVICE_NOT_READY.
3486 * If the client gave us STATUS_PENDING, it expects the async to always
3487 * block (it was triggered by WSASend*() with a valid OVERLAPPED
3488 * structure) and for the timeout not to be respected. */
3489 if (is_fd_overlapped( fd ))
3490 timeout = (timeout_t)sock->sndtimeo * -10000;
3491
3492 status = STATUS_PENDING;
3493 }
3494
3495 if ((status == STATUS_PENDING || status == STATUS_DEVICE_NOT_READY) && sock->wr_shutdown)
3496 status = STATUS_PIPE_DISCONNECTED;
3497
3498 if ((async = create_request_async( fd, get_fd_comp_flags( fd ), &req->async )))
3499 {
3500 if (status == STATUS_SUCCESS)
3501 {
3502 struct iosb *iosb = async_get_iosb( async );
3503 iosb->result = req->total;
3504 release_object( iosb );
3505 }
3506 set_error( status );
3507
3508 if (timeout)
3509 async_set_timeout( async, timeout, STATUS_IO_TIMEOUT );
3510
3511 if (status == STATUS_PENDING)
3512 queue_async( &sock->write_q, async );
3513
3514 /* always reselect; we changed reported_events above */
3515 sock_reselect( sock );
3516
3517 reply->wait = async_handoff( async, NULL, 0 );
3518 reply->options = get_fd_options( fd );
3519 release_object( async );
3520 }
3521 release_object( sock );
3522 }
Windows API implementation