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gdiplus: Use wide-char string literals.
[wine.git] / server / sock.c
blob8f500adc68b7b42ced8ce320896b1b8345383cbc
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_NETINET_IN_H
34 # include <netinet/in.h>
35 #endif
36 #ifdef HAVE_POLL_H
37 # include <poll.h>
38 #endif
39 #include <sys/time.h>
40 #include <sys/types.h>
41 #ifdef HAVE_SYS_SOCKET_H
42 # include <sys/socket.h>
43 #endif
44 #ifdef HAVE_SYS_IOCTL_H
45 #include <sys/ioctl.h>
46 #endif
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_RTNETLINK_H
54 # include <linux/rtnetlink.h>
55 #endif
56
57 #ifdef HAVE_NETIPX_IPX_H
58 # include <netipx/ipx.h>
59 #elif defined(HAVE_LINUX_IPX_H)
60 # ifdef HAVE_ASM_TYPES_H
61 # include <asm/types.h>
62 # endif
63 # ifdef HAVE_LINUX_TYPES_H
64 # include <linux/types.h>
65 # endif
66 # include <linux/ipx.h>
67 #endif
68 #if defined(SOL_IPX) || defined(SO_DEFAULT_HEADERS)
69 # define HAS_IPX
70 #endif
71
72 #ifdef HAVE_LINUX_IRDA_H
73 # ifdef HAVE_LINUX_TYPES_H
74 # include <linux/types.h>
75 # endif
76 # include <linux/irda.h>
77 # define HAS_IRDA
78 #endif
79
80 #include "ntstatus.h"
81 #define WIN32_NO_STATUS
82 #include "windef.h"
83 #include "winternl.h"
84 #include "winerror.h"
85 #define USE_WS_PREFIX
86 #include "winsock2.h"
87 #include "ws2tcpip.h"
88 #include "wsipx.h"
89 #include "af_irda.h"
90 #include "wine/afd.h"
91
92 #include "process.h"
93 #include "file.h"
94 #include "handle.h"
95 #include "thread.h"
96 #include "request.h"
97 #include "user.h"
98
99 /* From winsock.h */
100 #define FD_MAX_EVENTS 10
101 #define FD_READ_BIT 0
102 #define FD_WRITE_BIT 1
103 #define FD_OOB_BIT 2
104 #define FD_ACCEPT_BIT 3
105 #define FD_CONNECT_BIT 4
106 #define FD_CLOSE_BIT 5
107
108 /*
109 * Define flags to be used with the WSAAsyncSelect() call.
110 */
111 #define FD_READ 0x00000001
112 #define FD_WRITE 0x00000002
113 #define FD_OOB 0x00000004
114 #define FD_ACCEPT 0x00000008
115 #define FD_CONNECT 0x00000010
116 #define FD_CLOSE 0x00000020
117
118 /* internal per-socket flags */
119 #define FD_WINE_LISTENING 0x10000000
120 #define FD_WINE_NONBLOCKING 0x20000000
121 #define FD_WINE_CONNECTED 0x40000000
122 #define FD_WINE_RAW 0x80000000
123 #define FD_WINE_INTERNAL 0xFFFF0000
124
125 struct accept_req
126 {
127 struct list entry;
128 struct async *async;
129 struct sock *acceptsock;
130 int accepted;
131 unsigned int recv_len, local_len;
132 };
133
134 struct sock
135 {
136 struct object obj; /* object header */
137 struct fd *fd; /* socket file descriptor */
138 unsigned int state; /* status bits */
139 unsigned int mask; /* event mask */
140 unsigned int hmask; /* held (blocked) events */
141 unsigned int pmask; /* pending events */
142 unsigned int flags; /* socket flags */
143 int polling; /* is socket being polled? */
144 unsigned short proto; /* socket protocol */
145 unsigned short type; /* socket type */
146 unsigned short family; /* socket family */
147 struct event *event; /* event object */
148 user_handle_t window; /* window to send the message to */
149 unsigned int message; /* message to send */
150 obj_handle_t wparam; /* message wparam (socket handle) */
151 unsigned int errors[FD_MAX_EVENTS]; /* event errors */
152 timeout_t connect_time;/* time the socket was connected */
153 struct sock *deferred; /* socket that waits for a deferred accept */
154 struct async_queue read_q; /* queue for asynchronous reads */
155 struct async_queue write_q; /* queue for asynchronous writes */
156 struct async_queue ifchange_q; /* queue for interface change notifications */
157 struct async_queue accept_q; /* queue for asynchronous accepts */
158 struct object *ifchange_obj; /* the interface change notification object */
159 struct list ifchange_entry; /* entry in ifchange notification list */
160 struct list accept_list; /* list of pending accept requests */
161 struct accept_req *accept_recv_req; /* pending accept-into request which will recv on this socket */
162 };
163
164 static void sock_dump( struct object *obj, int verbose );
165 static int sock_signaled( struct object *obj, struct wait_queue_entry *entry );
166 static struct fd *sock_get_fd( struct object *obj );
167 static void sock_destroy( struct object *obj );
168 static struct object *sock_get_ifchange( struct sock *sock );
169 static void sock_release_ifchange( struct sock *sock );
170
171 static int sock_get_poll_events( struct fd *fd );
172 static void sock_poll_event( struct fd *fd, int event );
173 static enum server_fd_type sock_get_fd_type( struct fd *fd );
174 static int sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
175 static void sock_queue_async( struct fd *fd, struct async *async, int type, int count );
176 static void sock_reselect_async( struct fd *fd, struct async_queue *queue );
177
178 static int accept_into_socket( struct sock *sock, struct sock *acceptsock );
179 static struct sock *accept_socket( struct sock *sock );
180 static int sock_get_ntstatus( int err );
181 static unsigned int sock_get_error( int err );
182
183 static const struct object_ops sock_ops =
184 {
185 sizeof(struct sock), /* size */
186 sock_dump, /* dump */
187 no_get_type, /* get_type */
188 add_queue, /* add_queue */
189 remove_queue, /* remove_queue */
190 sock_signaled, /* signaled */
191 no_satisfied, /* satisfied */
192 no_signal, /* signal */
193 sock_get_fd, /* get_fd */
194 default_fd_map_access, /* map_access */
195 default_get_sd, /* get_sd */
196 default_set_sd, /* set_sd */
197 no_get_full_name, /* get_full_name */
198 no_lookup_name, /* lookup_name */
199 no_link_name, /* link_name */
200 NULL, /* unlink_name */
201 no_open_file, /* open_file */
202 no_kernel_obj_list, /* get_kernel_obj_list */
203 fd_close_handle, /* close_handle */
204 sock_destroy /* destroy */
205 };
206
207 static const struct fd_ops sock_fd_ops =
208 {
209 sock_get_poll_events, /* get_poll_events */
210 sock_poll_event, /* poll_event */
211 sock_get_fd_type, /* get_fd_type */
212 no_fd_read, /* read */
213 no_fd_write, /* write */
214 no_fd_flush, /* flush */
215 default_fd_get_file_info, /* get_file_info */
216 no_fd_get_volume_info, /* get_volume_info */
217 sock_ioctl, /* ioctl */
218 sock_queue_async, /* queue_async */
219 sock_reselect_async /* reselect_async */
220 };
221
222 union unix_sockaddr
223 {
224 struct sockaddr addr;
225 struct sockaddr_in in;
226 struct sockaddr_in6 in6;
227 #ifdef HAS_IPX
228 struct sockaddr_ipx ipx;
229 #endif
230 #ifdef HAS_IRDA
231 struct sockaddr_irda irda;
232 #endif
233 };
234
235 static int sockaddr_from_unix( const union unix_sockaddr *uaddr, struct WS_sockaddr *wsaddr, socklen_t wsaddrlen )
236 {
237 memset( wsaddr, 0, wsaddrlen );
238
239 switch (uaddr->addr.sa_family)
240 {
241 case AF_INET:
242 {
243 struct WS_sockaddr_in win = {0};
244
245 if (wsaddrlen < sizeof(win)) return -1;
246 win.sin_family = WS_AF_INET;
247 win.sin_port = uaddr->in.sin_port;
248 memcpy( &win.sin_addr, &uaddr->in.sin_addr, sizeof(win.sin_addr) );
249 memcpy( wsaddr, &win, sizeof(win) );
250 return sizeof(win);
251 }
252
253 case AF_INET6:
254 {
255 struct WS_sockaddr_in6 win = {0};
256
257 if (wsaddrlen < sizeof(struct WS_sockaddr_in6_old)) return -1;
258 win.sin6_family = WS_AF_INET6;
259 win.sin6_port = uaddr->in6.sin6_port;
260 win.sin6_flowinfo = uaddr->in6.sin6_flowinfo;
261 memcpy( &win.sin6_addr, &uaddr->in6.sin6_addr, sizeof(win.sin6_addr) );
262 #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
263 win.sin6_scope_id = uaddr->in6.sin6_scope_id;
264 #endif
265 if (wsaddrlen >= sizeof(struct WS_sockaddr_in6))
266 {
267 memcpy( wsaddr, &win, sizeof(struct WS_sockaddr_in6) );
268 return sizeof(struct WS_sockaddr_in6);
269 }
270 memcpy( wsaddr, &win, sizeof(struct WS_sockaddr_in6_old) );
271 return sizeof(struct WS_sockaddr_in6_old);
272 }
273
274 #ifdef HAS_IPX
275 case AF_IPX:
276 {
277 struct WS_sockaddr_ipx win = {0};
278
279 if (wsaddrlen < sizeof(win)) return -1;
280 win.sa_family = WS_AF_IPX;
281 memcpy( win.sa_netnum, &uaddr->ipx.sipx_network, sizeof(win.sa_netnum) );
282 memcpy( win.sa_nodenum, &uaddr->ipx.sipx_node, sizeof(win.sa_nodenum) );
283 win.sa_socket = uaddr->ipx.sipx_port;
284 memcpy( wsaddr, &win, sizeof(win) );
285 return sizeof(win);
286 }
287 #endif
288
289 #ifdef HAS_IRDA
290 case AF_IRDA:
291 {
292 SOCKADDR_IRDA win;
293
294 if (wsaddrlen < sizeof(win)) return -1;
295 win.irdaAddressFamily = WS_AF_IRDA;
296 memcpy( win.irdaDeviceID, &uaddr->irda.sir_addr, sizeof(win.irdaDeviceID) );
297 if (uaddr->irda.sir_lsap_sel != LSAP_ANY)
298 snprintf( win.irdaServiceName, sizeof(win.irdaServiceName), "LSAP-SEL%u", uaddr->irda.sir_lsap_sel );
299 else
300 memcpy( win.irdaServiceName, uaddr->irda.sir_name, sizeof(win.irdaServiceName) );
301 memcpy( wsaddr, &win, sizeof(win) );
302 return sizeof(win);
303 }
304 #endif
305
306 case AF_UNSPEC:
307 return 0;
308
309 default:
310 return -1;
311
312 }
313 }
314
315 /* Permutation of 0..FD_MAX_EVENTS - 1 representing the order in which
316 * we post messages if there are multiple events. Used to send
317 * messages. The problem is if there is both a FD_CONNECT event and,
318 * say, an FD_READ event available on the same socket, we want to
319 * notify the app of the connect event first. Otherwise it may
320 * discard the read event because it thinks it hasn't connected yet.
321 */
322 static const int event_bitorder[FD_MAX_EVENTS] =
323 {
324 FD_CONNECT_BIT,
325 FD_ACCEPT_BIT,
326 FD_OOB_BIT,
327 FD_WRITE_BIT,
328 FD_READ_BIT,
329 FD_CLOSE_BIT,
330 6, 7, 8, 9 /* leftovers */
331 };
332
333 /* Flags that make sense only for SOCK_STREAM sockets */
334 #define STREAM_FLAG_MASK ((unsigned int) (FD_CONNECT | FD_ACCEPT | FD_WINE_LISTENING | FD_WINE_CONNECTED))
335
336 typedef enum {
337 SOCK_SHUTDOWN_ERROR = -1,
338 SOCK_SHUTDOWN_EOF = 0,
339 SOCK_SHUTDOWN_POLLHUP = 1
340 } sock_shutdown_t;
341
342 static sock_shutdown_t sock_shutdown_type = SOCK_SHUTDOWN_ERROR;
343
344 static sock_shutdown_t sock_check_pollhup(void)
345 {
346 sock_shutdown_t ret = SOCK_SHUTDOWN_ERROR;
347 int fd[2], n;
348 struct pollfd pfd;
349 char dummy;
350
351 if ( socketpair( AF_UNIX, SOCK_STREAM, 0, fd ) ) return ret;
352 if ( shutdown( fd[0], 1 ) ) goto out;
353
354 pfd.fd = fd[1];
355 pfd.events = POLLIN;
356 pfd.revents = 0;
357
358 /* Solaris' poll() sometimes returns nothing if given a 0ms timeout here */
359 n = poll( &pfd, 1, 1 );
360 if ( n != 1 ) goto out; /* error or timeout */
361 if ( pfd.revents & POLLHUP )
362 ret = SOCK_SHUTDOWN_POLLHUP;
363 else if ( pfd.revents & POLLIN &&
364 read( fd[1], &dummy, 1 ) == 0 )
365 ret = SOCK_SHUTDOWN_EOF;
366
367 out:
368 close( fd[0] );
369 close( fd[1] );
370 return ret;
371 }
372
373 void sock_init(void)
374 {
375 sock_shutdown_type = sock_check_pollhup();
376
377 switch ( sock_shutdown_type )
378 {
379 case SOCK_SHUTDOWN_EOF:
380 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes EOF\n" );
381 break;
382 case SOCK_SHUTDOWN_POLLHUP:
383 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes POLLHUP\n" );
384 break;
385 default:
386 fprintf( stderr, "sock_init: ERROR in sock_check_pollhup()\n" );
387 sock_shutdown_type = SOCK_SHUTDOWN_EOF;
388 }
389 }
390
391 static int sock_reselect( struct sock *sock )
392 {
393 int ev = sock_get_poll_events( sock->fd );
394
395 if (debug_level)
396 fprintf(stderr,"sock_reselect(%p): new mask %x\n", sock, ev);
397
398 if (!sock->polling) /* FIXME: should find a better way to do this */
399 {
400 /* previously unconnected socket, is this reselect supposed to connect it? */
401 if (!(sock->state & ~FD_WINE_NONBLOCKING)) return 0;
402 /* ok, it is, attach it to the wineserver's main poll loop */
403 sock->polling = 1;
404 allow_fd_caching( sock->fd );
405 }
406 /* update condition mask */
407 set_fd_events( sock->fd, ev );
408 return ev;
409 }
410
411 /* wake anybody waiting on the socket event or send the associated message */
412 static void sock_wake_up( struct sock *sock )
413 {
414 unsigned int events = sock->pmask & sock->mask;
415 int i;
416
417 if ( !events ) return;
418
419 if (sock->event)
420 {
421 if (debug_level) fprintf(stderr, "signalling events %x ptr %p\n", events, sock->event );
422 set_event( sock->event );
423 }
424 if (sock->window)
425 {
426 if (debug_level) fprintf(stderr, "signalling events %x win %08x\n", events, sock->window );
427 for (i = 0; i < FD_MAX_EVENTS; i++)
428 {
429 int event = event_bitorder[i];
430 if (sock->pmask & (1 << event))
431 {
432 lparam_t lparam = (1 << event) | (sock->errors[event] << 16);
433 post_message( sock->window, sock->message, sock->wparam, lparam );
434 }
435 }
436 sock->pmask = 0;
437 sock_reselect( sock );
438 }
439 }
440
441 static inline int sock_error( struct fd *fd )
442 {
443 unsigned int optval = 0;
444 socklen_t optlen = sizeof(optval);
445
446 getsockopt( get_unix_fd(fd), SOL_SOCKET, SO_ERROR, (void *) &optval, &optlen);
447 return optval;
448 }
449
450 static void free_accept_req( struct accept_req *req )
451 {
452 list_remove( &req->entry );
453 if (req->acceptsock) req->acceptsock->accept_recv_req = NULL;
454 release_object( req->async );
455 free( req );
456 }
457
458 static void fill_accept_output( struct accept_req *req, struct iosb *iosb )
459 {
460 union unix_sockaddr unix_addr;
461 struct WS_sockaddr *win_addr;
462 socklen_t unix_len;
463 int fd, size = 0;
464 char *out_data;
465 int win_len;
466
467 if (!(out_data = mem_alloc( iosb->out_size ))) return;
468
469 fd = get_unix_fd( req->acceptsock->fd );
470
471 if (req->recv_len && (size = recv( fd, out_data, req->recv_len, 0 )) < 0)
472 {
473 if (!req->accepted && errno == EWOULDBLOCK)
474 {
475 req->accepted = 1;
476 sock_reselect( req->acceptsock );
477 set_error( STATUS_PENDING );
478 return;
479 }
480
481 set_win32_error( sock_get_error( errno ) );
482 free( out_data );
483 return;
484 }
485
486 if (req->local_len)
487 {
488 if (req->local_len < sizeof(int))
489 {
490 set_error( STATUS_BUFFER_TOO_SMALL );
491 free( out_data );
492 return;
493 }
494
495 unix_len = sizeof(unix_addr);
496 win_addr = (struct WS_sockaddr *)(out_data + req->recv_len + sizeof(int));
497 if (getsockname( fd, &unix_addr.addr, &unix_len ) < 0 ||
498 (win_len = sockaddr_from_unix( &unix_addr, win_addr, req->local_len )) < 0)
499 {
500 set_win32_error( sock_get_error( errno ) );
501 free( out_data );
502 return;
503 }
504 memcpy( out_data + req->recv_len, &win_len, sizeof(int) );
505 }
506
507 unix_len = sizeof(unix_addr);
508 win_addr = (struct WS_sockaddr *)(out_data + req->recv_len + req->local_len + sizeof(int));
509 if (getpeername( fd, &unix_addr.addr, &unix_len ) < 0 ||
510 (win_len = sockaddr_from_unix( &unix_addr, win_addr, iosb->out_size - req->recv_len - req->local_len )) < 0)
511 {
512 set_win32_error( sock_get_error( errno ) );
513 free( out_data );
514 return;
515 }
516 memcpy( out_data + req->recv_len + req->local_len, &win_len, sizeof(int) );
517
518 iosb->status = STATUS_SUCCESS;
519 iosb->result = size;
520 iosb->out_data = out_data;
521 set_error( STATUS_ALERTED );
522 }
523
524 static void complete_async_accept( struct sock *sock, struct accept_req *req )
525 {
526 struct sock *acceptsock = req->acceptsock;
527 struct async *async = req->async;
528 struct iosb *iosb;
529
530 if (debug_level) fprintf( stderr, "completing accept request for socket %p\n", sock );
531
532 if (acceptsock)
533 {
534 if (!accept_into_socket( sock, acceptsock )) return;
535
536 iosb = async_get_iosb( async );
537 fill_accept_output( req, iosb );
538 release_object( iosb );
539 }
540 else
541 {
542 obj_handle_t handle;
543
544 if (!(acceptsock = accept_socket( sock ))) return;
545 handle = alloc_handle_no_access_check( async_get_thread( async )->process, &acceptsock->obj,
546 GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, OBJ_INHERIT );
547 acceptsock->wparam = handle;
548 release_object( acceptsock );
549 if (!handle) return;
550
551 iosb = async_get_iosb( async );
552 if (!(iosb->out_data = malloc( sizeof(handle) )))
553 {
554 release_object( iosb );
555 return;
556 }
557 iosb->status = STATUS_SUCCESS;
558 iosb->out_size = sizeof(handle);
559 memcpy( iosb->out_data, &handle, sizeof(handle) );
560 release_object( iosb );
561 set_error( STATUS_ALERTED );
562 }
563 }
564
565 static void complete_async_accept_recv( struct accept_req *req )
566 {
567 struct async *async = req->async;
568 struct iosb *iosb;
569
570 if (debug_level) fprintf( stderr, "completing accept recv request for socket %p\n", req->acceptsock );
571
572 assert( req->recv_len );
573
574 iosb = async_get_iosb( async );
575 fill_accept_output( req, iosb );
576 release_object( iosb );
577 }
578
579 static int sock_dispatch_asyncs( struct sock *sock, int event, int error )
580 {
581 if (event & (POLLIN | POLLPRI))
582 {
583 struct accept_req *req;
584
585 LIST_FOR_EACH_ENTRY( req, &sock->accept_list, struct accept_req, entry )
586 {
587 if (!req->accepted)
588 {
589 complete_async_accept( sock, req );
590 if (get_error() != STATUS_PENDING)
591 async_terminate( req->async, get_error() );
592 break;
593 }
594 }
595
596 if (sock->accept_recv_req)
597 {
598 complete_async_accept_recv( sock->accept_recv_req );
599 if (get_error() != STATUS_PENDING)
600 async_terminate( sock->accept_recv_req->async, get_error() );
601 }
602 }
603
604 if (is_fd_overlapped( sock->fd ))
605 {
606 if (event & (POLLIN|POLLPRI) && async_waiting( &sock->read_q ))
607 {
608 if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
609 async_wake_up( &sock->read_q, STATUS_ALERTED );
610 event &= ~(POLLIN|POLLPRI);
611 }
612 if (event & POLLOUT && async_waiting( &sock->write_q ))
613 {
614 if (debug_level) fprintf( stderr, "activating write queue for socket %p\n", sock );
615 async_wake_up( &sock->write_q, STATUS_ALERTED );
616 event &= ~POLLOUT;
617 }
618 }
619
620 if (event & (POLLERR | POLLHUP))
621 {
622 int status = sock_get_ntstatus( error );
623 struct accept_req *req, *next;
624
625 if (!(sock->state & FD_READ))
626 async_wake_up( &sock->read_q, status );
627 if (!(sock->state & FD_WRITE))
628 async_wake_up( &sock->write_q, status );
629
630 LIST_FOR_EACH_ENTRY_SAFE( req, next, &sock->accept_list, struct accept_req, entry )
631 async_terminate( req->async, status );
632
633 if (sock->accept_recv_req)
634 async_terminate( sock->accept_recv_req->async, status );
635 }
636
637 return event;
638 }
639
640 static void sock_dispatch_events( struct sock *sock, int prevstate, int event, int error )
641 {
642 if (prevstate & FD_CONNECT)
643 {
644 sock->pmask |= FD_CONNECT;
645 sock->hmask |= FD_CONNECT;
646 sock->errors[FD_CONNECT_BIT] = sock_get_error( error );
647 goto end;
648 }
649 if (prevstate & FD_WINE_LISTENING)
650 {
651 sock->pmask |= FD_ACCEPT;
652 sock->hmask |= FD_ACCEPT;
653 sock->errors[FD_ACCEPT_BIT] = sock_get_error( error );
654 goto end;
655 }
656
657 if (event & POLLIN)
658 {
659 sock->pmask |= FD_READ;
660 sock->hmask |= FD_READ;
661 sock->errors[FD_READ_BIT] = 0;
662 }
663
664 if (event & POLLOUT)
665 {
666 sock->pmask |= FD_WRITE;
667 sock->hmask |= FD_WRITE;
668 sock->errors[FD_WRITE_BIT] = 0;
669 }
670
671 if (event & POLLPRI)
672 {
673 sock->pmask |= FD_OOB;
674 sock->hmask |= FD_OOB;
675 sock->errors[FD_OOB_BIT] = 0;
676 }
677
678 if (event & (POLLERR|POLLHUP))
679 {
680 sock->pmask |= FD_CLOSE;
681 sock->hmask |= FD_CLOSE;
682 sock->errors[FD_CLOSE_BIT] = sock_get_error( error );
683 }
684 end:
685 sock_wake_up( sock );
686 }
687
688 static void sock_poll_event( struct fd *fd, int event )
689 {
690 struct sock *sock = get_fd_user( fd );
691 int hangup_seen = 0;
692 int prevstate = sock->state;
693 int error = 0;
694
695 assert( sock->obj.ops == &sock_ops );
696 if (debug_level)
697 fprintf(stderr, "socket %p select event: %x\n", sock, event);
698
699 /* we may change event later, remove from loop here */
700 if (event & (POLLERR|POLLHUP)) set_fd_events( sock->fd, -1 );
701
702 if (sock->state & FD_CONNECT)
703 {
704 if (event & (POLLERR|POLLHUP))
705 {
706 /* we didn't get connected? */
707 sock->state &= ~FD_CONNECT;
708 event &= ~POLLOUT;
709 error = sock_error( fd );
710 }
711 else if (event & POLLOUT)
712 {
713 /* we got connected */
714 sock->state |= FD_WINE_CONNECTED|FD_READ|FD_WRITE;
715 sock->state &= ~FD_CONNECT;
716 sock->connect_time = current_time;
717 }
718 }
719 else if (sock->state & FD_WINE_LISTENING)
720 {
721 /* listening */
722 if (event & (POLLERR|POLLHUP))
723 error = sock_error( fd );
724 }
725 else
726 {
727 /* normal data flow */
728 if (sock->type == WS_SOCK_STREAM && (event & POLLIN))
729 {
730 char dummy;
731 int nr;
732
733 /* Linux 2.4 doesn't report POLLHUP if only one side of the socket
734 * has been closed, so we need to check for it explicitly here */
735 nr = recv( get_unix_fd( fd ), &dummy, 1, MSG_PEEK );
736 if ( nr == 0 )
737 {
738 hangup_seen = 1;
739 event &= ~POLLIN;
740 }
741 else if ( nr < 0 )
742 {
743 event &= ~POLLIN;
744 /* EAGAIN can happen if an async recv() falls between the server's poll()
745 call and the invocation of this routine */
746 if ( errno != EAGAIN )
747 {
748 error = errno;
749 event |= POLLERR;
750 if ( debug_level )
751 fprintf( stderr, "recv error on socket %p: %d\n", sock, errno );
752 }
753 }
754 }
755
756 if ( (hangup_seen || event & (POLLHUP|POLLERR)) && (sock->state & (FD_READ|FD_WRITE)) )
757 {
758 error = error ? error : sock_error( fd );
759 if ( (event & POLLERR) || ( sock_shutdown_type == SOCK_SHUTDOWN_EOF && (event & POLLHUP) ))
760 sock->state &= ~FD_WRITE;
761 sock->state &= ~FD_READ;
762
763 if (debug_level)
764 fprintf(stderr, "socket %p aborted by error %d, event: %x\n", sock, error, event);
765 }
766
767 if (hangup_seen)
768 event |= POLLHUP;
769 }
770
771 event = sock_dispatch_asyncs( sock, event, error );
772 sock_dispatch_events( sock, prevstate, event, error );
773
774 /* if anyone is stupid enough to wait on the socket object itself,
775 * maybe we should wake them up too, just in case? */
776 wake_up( &sock->obj, 0 );
777
778 sock_reselect( sock );
779 }
780
781 static void sock_dump( struct object *obj, int verbose )
782 {
783 struct sock *sock = (struct sock *)obj;
784 assert( obj->ops == &sock_ops );
785 fprintf( stderr, "Socket fd=%p, state=%x, mask=%x, pending=%x, held=%x\n",
786 sock->fd, sock->state,
787 sock->mask, sock->pmask, sock->hmask );
788 }
789
790 static int sock_signaled( struct object *obj, struct wait_queue_entry *entry )
791 {
792 struct sock *sock = (struct sock *)obj;
793 assert( obj->ops == &sock_ops );
794
795 return check_fd_events( sock->fd, sock_get_poll_events( sock->fd ) ) != 0;
796 }
797
798 static int sock_get_poll_events( struct fd *fd )
799 {
800 struct sock *sock = get_fd_user( fd );
801 unsigned int mask = sock->mask & ~sock->hmask;
802 unsigned int smask = sock->state & mask;
803 int ev = 0;
804
805 assert( sock->obj.ops == &sock_ops );
806
807 if (sock->state & FD_CONNECT)
808 /* connecting, wait for writable */
809 return POLLOUT;
810
811 if (!list_empty( &sock->accept_list ) || sock->accept_recv_req )
812 {
813 ev |= POLLIN | POLLPRI;
814 }
815 else if (async_queued( &sock->read_q ))
816 {
817 if (async_waiting( &sock->read_q )) ev |= POLLIN | POLLPRI;
818 }
819 else if (smask & FD_READ || (sock->state & FD_WINE_LISTENING && mask & FD_ACCEPT))
820 ev |= POLLIN | POLLPRI;
821 /* We use POLLIN with 0 bytes recv() as FD_CLOSE indication for stream sockets. */
822 else if (sock->type == WS_SOCK_STREAM && (sock->state & FD_READ) && (mask & FD_CLOSE) &&
823 !(sock->hmask & FD_READ))
824 ev |= POLLIN;
825
826 if (async_queued( &sock->write_q ))
827 {
828 if (async_waiting( &sock->write_q )) ev |= POLLOUT;
829 }
830 else if (smask & FD_WRITE)
831 ev |= POLLOUT;
832
833 return ev;
834 }
835
836 static enum server_fd_type sock_get_fd_type( struct fd *fd )
837 {
838 return FD_TYPE_SOCKET;
839 }
840
841 static void sock_queue_async( struct fd *fd, struct async *async, int type, int count )
842 {
843 struct sock *sock = get_fd_user( fd );
844 struct async_queue *queue;
845
846 assert( sock->obj.ops == &sock_ops );
847
848 switch (type)
849 {
850 case ASYNC_TYPE_READ:
851 queue = &sock->read_q;
852 break;
853 case ASYNC_TYPE_WRITE:
854 queue = &sock->write_q;
855 break;
856 default:
857 set_error( STATUS_INVALID_PARAMETER );
858 return;
859 }
860
861 if ( ( !( sock->state & (FD_READ|FD_CONNECT|FD_WINE_LISTENING) ) && type == ASYNC_TYPE_READ ) ||
862 ( !( sock->state & (FD_WRITE|FD_CONNECT) ) && type == ASYNC_TYPE_WRITE ) )
863 {
864 set_error( STATUS_PIPE_DISCONNECTED );
865 return;
866 }
867
868 queue_async( queue, async );
869 sock_reselect( sock );
870
871 set_error( STATUS_PENDING );
872 }
873
874 static void sock_reselect_async( struct fd *fd, struct async_queue *queue )
875 {
876 struct sock *sock = get_fd_user( fd );
877 struct accept_req *req, *next;
878
879 LIST_FOR_EACH_ENTRY_SAFE( req, next, &sock->accept_list, struct accept_req, entry )
880 {
881 struct iosb *iosb = async_get_iosb( req->async );
882 if (iosb->status != STATUS_PENDING)
883 free_accept_req( req );
884 release_object( iosb );
885 }
886
887 /* ignore reselect on ifchange queue */
888 if (&sock->ifchange_q != queue)
889 sock_reselect( sock );
890 }
891
892 static struct fd *sock_get_fd( struct object *obj )
893 {
894 struct sock *sock = (struct sock *)obj;
895 return (struct fd *)grab_object( sock->fd );
896 }
897
898 static void sock_destroy( struct object *obj )
899 {
900 struct sock *sock = (struct sock *)obj;
901 struct accept_req *req, *next;
902
903 assert( obj->ops == &sock_ops );
904
905 /* FIXME: special socket shutdown stuff? */
906
907 if ( sock->deferred )
908 release_object( sock->deferred );
909
910 if (sock->accept_recv_req)
911 async_terminate( sock->accept_recv_req->async, STATUS_CANCELLED );
912
913 LIST_FOR_EACH_ENTRY_SAFE( req, next, &sock->accept_list, struct accept_req, entry )
914 async_terminate( req->async, STATUS_CANCELLED );
915
916 async_wake_up( &sock->ifchange_q, STATUS_CANCELLED );
917 sock_release_ifchange( sock );
918 free_async_queue( &sock->read_q );
919 free_async_queue( &sock->write_q );
920 free_async_queue( &sock->ifchange_q );
921 free_async_queue( &sock->accept_q );
922 if (sock->event) release_object( sock->event );
923 if (sock->fd)
924 {
925 /* shut the socket down to force pending poll() calls in the client to return */
926 shutdown( get_unix_fd(sock->fd), SHUT_RDWR );
927 release_object( sock->fd );
928 }
929 }
930
931 static struct sock *create_socket(void)
932 {
933 struct sock *sock;
934
935 if (!(sock = alloc_object( &sock_ops ))) return NULL;
936 sock->fd = NULL;
937 sock->state = 0;
938 sock->mask = 0;
939 sock->hmask = 0;
940 sock->pmask = 0;
941 sock->polling = 0;
942 sock->flags = 0;
943 sock->proto = 0;
944 sock->type = 0;
945 sock->family = 0;
946 sock->event = NULL;
947 sock->window = 0;
948 sock->message = 0;
949 sock->wparam = 0;
950 sock->connect_time = 0;
951 sock->deferred = NULL;
952 sock->ifchange_obj = NULL;
953 sock->accept_recv_req = NULL;
954 init_async_queue( &sock->read_q );
955 init_async_queue( &sock->write_q );
956 init_async_queue( &sock->ifchange_q );
957 init_async_queue( &sock->accept_q );
958 memset( sock->errors, 0, sizeof(sock->errors) );
959 list_init( &sock->accept_list );
960 return sock;
961 }
962
963 static int get_unix_family( int family )
964 {
965 switch (family)
966 {
967 case WS_AF_INET: return AF_INET;
968 case WS_AF_INET6: return AF_INET6;
969 #ifdef HAS_IPX
970 case WS_AF_IPX: return AF_IPX;
971 #endif
972 #ifdef AF_IRDA
973 case WS_AF_IRDA: return AF_IRDA;
974 #endif
975 case WS_AF_UNSPEC: return AF_UNSPEC;
976 default: return -1;
977 }
978 }
979
980 static int get_unix_type( int type )
981 {
982 switch (type)
983 {
984 case WS_SOCK_DGRAM: return SOCK_DGRAM;
985 case WS_SOCK_RAW: return SOCK_RAW;
986 case WS_SOCK_STREAM: return SOCK_STREAM;
987 default: return -1;
988 }
989 }
990
991 static int get_unix_protocol( int protocol )
992 {
993 if (protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
994 return protocol;
995
996 switch (protocol)
997 {
998 case WS_IPPROTO_ICMP: return IPPROTO_ICMP;
999 case WS_IPPROTO_IGMP: return IPPROTO_IGMP;
1000 case WS_IPPROTO_IP: return IPPROTO_IP;
1001 case WS_IPPROTO_IPIP: return IPPROTO_IPIP;
1002 case WS_IPPROTO_IPV6: return IPPROTO_IPV6;
1003 case WS_IPPROTO_RAW: return IPPROTO_RAW;
1004 case WS_IPPROTO_TCP: return IPPROTO_TCP;
1005 case WS_IPPROTO_UDP: return IPPROTO_UDP;
1006 default: return -1;
1007 }
1008 }
1009
1010 static void set_dont_fragment( int fd, int level, int value )
1011 {
1012 int optname;
1013
1014 if (level == IPPROTO_IP)
1015 {
1016 #ifdef IP_DONTFRAG
1017 optname = IP_DONTFRAG;
1018 #elif defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO) && defined(IP_PMTUDISC_DONT)
1019 optname = IP_MTU_DISCOVER;
1020 value = value ? IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
1021 #else
1022 return;
1023 #endif
1024 }
1025 else
1026 {
1027 #ifdef IPV6_DONTFRAG
1028 optname = IPV6_DONTFRAG;
1029 #elif defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO) && defined(IPV6_PMTUDISC_DONT)
1030 optname = IPV6_MTU_DISCOVER;
1031 value = value ? IPV6_PMTUDISC_DO : IPV6_PMTUDISC_DONT;
1032 #else
1033 return;
1034 #endif
1035 }
1036
1037 setsockopt( fd, level, optname, &value, sizeof(value) );
1038 }
1039
1040 static int init_socket( struct sock *sock, int family, int type, int protocol, unsigned int flags )
1041 {
1042 unsigned int options = 0;
1043 int sockfd, unix_type, unix_family, unix_protocol;
1044
1045 unix_family = get_unix_family( family );
1046 unix_type = get_unix_type( type );
1047 unix_protocol = get_unix_protocol( protocol );
1048
1049 if (unix_protocol < 0)
1050 {
1051 if (type && unix_type < 0)
1052 set_win32_error( WSAESOCKTNOSUPPORT );
1053 else
1054 set_win32_error( WSAEPROTONOSUPPORT );
1055 return -1;
1056 }
1057 if (unix_family < 0)
1058 {
1059 if (family >= 0 && unix_type < 0)
1060 set_win32_error( WSAESOCKTNOSUPPORT );
1061 else
1062 set_win32_error( WSAEAFNOSUPPORT );
1063 return -1;
1064 }
1065
1066 sockfd = socket( unix_family, unix_type, unix_protocol );
1067 if (sockfd == -1)
1068 {
1069 if (errno == EINVAL) set_win32_error( WSAESOCKTNOSUPPORT );
1070 else set_win32_error( sock_get_error( errno ));
1071 return -1;
1072 }
1073 fcntl(sockfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
1074
1075 if (family == WS_AF_IPX && protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
1076 {
1077 #ifdef HAS_IPX
1078 int ipx_type = protocol - WS_NSPROTO_IPX;
1079
1080 #ifdef SOL_IPX
1081 setsockopt( sockfd, SOL_IPX, IPX_TYPE, &ipx_type, sizeof(ipx_type) );
1082 #else
1083 struct ipx val;
1084 /* Should we retrieve val using a getsockopt call and then
1085 * set the modified one? */
1086 val.ipx_pt = ipx_type;
1087 setsockopt( sockfd, 0, SO_DEFAULT_HEADERS, &val, sizeof(val) );
1088 #endif
1089 #endif
1090 }
1091
1092 if (unix_family == AF_INET || unix_family == AF_INET6)
1093 {
1094 /* ensure IP_DONTFRAGMENT is disabled for SOCK_DGRAM and SOCK_RAW, enabled for SOCK_STREAM */
1095 if (unix_type == SOCK_DGRAM || unix_type == SOCK_RAW) /* in Linux the global default can be enabled */
1096 set_dont_fragment( sockfd, unix_family == AF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP, FALSE );
1097 else if (unix_type == SOCK_STREAM)
1098 set_dont_fragment( sockfd, unix_family == AF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP, TRUE );
1099 }
1100
1101 #ifdef IPV6_V6ONLY
1102 if (unix_family == AF_INET6)
1103 {
1104 static const int enable = 1;
1105 setsockopt( sockfd, IPPROTO_IPV6, IPV6_V6ONLY, &enable, sizeof(enable) );
1106 }
1107 #endif
1108
1109 sock->state = (type != SOCK_STREAM) ? (FD_READ|FD_WRITE) : 0;
1110 sock->flags = flags;
1111 sock->proto = protocol;
1112 sock->type = type;
1113 sock->family = family;
1114
1115 if (sock->fd)
1116 {
1117 options = get_fd_options( sock->fd );
1118 release_object( sock->fd );
1119 }
1120
1121 if (!(sock->fd = create_anonymous_fd( &sock_fd_ops, sockfd, &sock->obj, options )))
1122 {
1123 return -1;
1124 }
1125 sock_reselect( sock );
1126 clear_error();
1127 return 0;
1128 }
1129
1130 /* accepts a socket and inits it */
1131 static int accept_new_fd( struct sock *sock )
1132 {
1133
1134 /* Try to accept(2). We can't be safe that this an already connected socket
1135 * or that accept() is allowed on it. In those cases we will get -1/errno
1136 * return.
1137 */
1138 struct sockaddr saddr;
1139 socklen_t slen = sizeof(saddr);
1140 int acceptfd = accept( get_unix_fd(sock->fd), &saddr, &slen );
1141 if (acceptfd != -1)
1142 fcntl( acceptfd, F_SETFL, O_NONBLOCK );
1143 else
1144 set_win32_error( sock_get_error( errno ));
1145 return acceptfd;
1146 }
1147
1148 /* accept a socket (creates a new fd) */
1149 static struct sock *accept_socket( struct sock *sock )
1150 {
1151 struct sock *acceptsock;
1152 int acceptfd;
1153
1154 if (get_unix_fd( sock->fd ) == -1) return NULL;
1155
1156 if ( sock->deferred )
1157 {
1158 acceptsock = sock->deferred;
1159 sock->deferred = NULL;
1160 }
1161 else
1162 {
1163 if ((acceptfd = accept_new_fd( sock )) == -1) return NULL;
1164 if (!(acceptsock = create_socket()))
1165 {
1166 close( acceptfd );
1167 return NULL;
1168 }
1169
1170 /* newly created socket gets the same properties of the listening socket */
1171 acceptsock->state = FD_WINE_CONNECTED|FD_READ|FD_WRITE;
1172 if (sock->state & FD_WINE_NONBLOCKING)
1173 acceptsock->state |= FD_WINE_NONBLOCKING;
1174 acceptsock->mask = sock->mask;
1175 acceptsock->proto = sock->proto;
1176 acceptsock->type = sock->type;
1177 acceptsock->family = sock->family;
1178 acceptsock->window = sock->window;
1179 acceptsock->message = sock->message;
1180 acceptsock->connect_time = current_time;
1181 if (sock->event) acceptsock->event = (struct event *)grab_object( sock->event );
1182 acceptsock->flags = sock->flags;
1183 if (!(acceptsock->fd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
1184 get_fd_options( sock->fd ) )))
1185 {
1186 release_object( acceptsock );
1187 return NULL;
1188 }
1189 }
1190 clear_error();
1191 sock->pmask &= ~FD_ACCEPT;
1192 sock->hmask &= ~FD_ACCEPT;
1193 sock_reselect( sock );
1194 return acceptsock;
1195 }
1196
1197 static int accept_into_socket( struct sock *sock, struct sock *acceptsock )
1198 {
1199 int acceptfd;
1200 struct fd *newfd;
1201
1202 if (get_unix_fd( sock->fd ) == -1) return FALSE;
1203
1204 if ( sock->deferred )
1205 {
1206 newfd = dup_fd_object( sock->deferred->fd, 0, 0,
1207 get_fd_options( acceptsock->fd ) );
1208 if ( !newfd )
1209 return FALSE;
1210
1211 set_fd_user( newfd, &sock_fd_ops, &acceptsock->obj );
1212
1213 release_object( sock->deferred );
1214 sock->deferred = NULL;
1215 }
1216 else
1217 {
1218 if ((acceptfd = accept_new_fd( sock )) == -1)
1219 return FALSE;
1220
1221 if (!(newfd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
1222 get_fd_options( acceptsock->fd ) )))
1223 return FALSE;
1224 }
1225
1226 acceptsock->state |= FD_WINE_CONNECTED|FD_READ|FD_WRITE;
1227 acceptsock->hmask = 0;
1228 acceptsock->pmask = 0;
1229 acceptsock->polling = 0;
1230 acceptsock->proto = sock->proto;
1231 acceptsock->type = sock->type;
1232 acceptsock->family = sock->family;
1233 acceptsock->wparam = 0;
1234 acceptsock->deferred = NULL;
1235 acceptsock->connect_time = current_time;
1236 fd_copy_completion( acceptsock->fd, newfd );
1237 release_object( acceptsock->fd );
1238 acceptsock->fd = newfd;
1239
1240 clear_error();
1241 sock->pmask &= ~FD_ACCEPT;
1242 sock->hmask &= ~FD_ACCEPT;
1243 sock_reselect( sock );
1244
1245 return TRUE;
1246 }
1247
1248 /* return an errno value mapped to a WSA error */
1249 static unsigned int sock_get_error( int err )
1250 {
1251 switch (err)
1252 {
1253 case EINTR: return WSAEINTR;
1254 case EBADF: return WSAEBADF;
1255 case EPERM:
1256 case EACCES: return WSAEACCES;
1257 case EFAULT: return WSAEFAULT;
1258 case EINVAL: return WSAEINVAL;
1259 case EMFILE: return WSAEMFILE;
1260 case EWOULDBLOCK: return WSAEWOULDBLOCK;
1261 case EINPROGRESS: return WSAEINPROGRESS;
1262 case EALREADY: return WSAEALREADY;
1263 case ENOTSOCK: return WSAENOTSOCK;
1264 case EDESTADDRREQ: return WSAEDESTADDRREQ;
1265 case EMSGSIZE: return WSAEMSGSIZE;
1266 case EPROTOTYPE: return WSAEPROTOTYPE;
1267 case ENOPROTOOPT: return WSAENOPROTOOPT;
1268 case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
1269 case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
1270 case EOPNOTSUPP: return WSAEOPNOTSUPP;
1271 case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
1272 case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
1273 case EADDRINUSE: return WSAEADDRINUSE;
1274 case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
1275 case ENETDOWN: return WSAENETDOWN;
1276 case ENETUNREACH: return WSAENETUNREACH;
1277 case ENETRESET: return WSAENETRESET;
1278 case ECONNABORTED: return WSAECONNABORTED;
1279 case EPIPE:
1280 case ECONNRESET: return WSAECONNRESET;
1281 case ENOBUFS: return WSAENOBUFS;
1282 case EISCONN: return WSAEISCONN;
1283 case ENOTCONN: return WSAENOTCONN;
1284 case ESHUTDOWN: return WSAESHUTDOWN;
1285 case ETOOMANYREFS: return WSAETOOMANYREFS;
1286 case ETIMEDOUT: return WSAETIMEDOUT;
1287 case ECONNREFUSED: return WSAECONNREFUSED;
1288 case ELOOP: return WSAELOOP;
1289 case ENAMETOOLONG: return WSAENAMETOOLONG;
1290 case EHOSTDOWN: return WSAEHOSTDOWN;
1291 case EHOSTUNREACH: return WSAEHOSTUNREACH;
1292 case ENOTEMPTY: return WSAENOTEMPTY;
1293 #ifdef EPROCLIM
1294 case EPROCLIM: return WSAEPROCLIM;
1295 #endif
1296 #ifdef EUSERS
1297 case EUSERS: return WSAEUSERS;
1298 #endif
1299 #ifdef EDQUOT
1300 case EDQUOT: return WSAEDQUOT;
1301 #endif
1302 #ifdef ESTALE
1303 case ESTALE: return WSAESTALE;
1304 #endif
1305 #ifdef EREMOTE
1306 case EREMOTE: return WSAEREMOTE;
1307 #endif
1308
1309 case 0: return 0;
1310 default:
1311 errno = err;
1312 perror("wineserver: sock_get_error() can't map error");
1313 return WSAEFAULT;
1314 }
1315 }
1316
1317 static int sock_get_ntstatus( int err )
1318 {
1319 switch ( err )
1320 {
1321 case EBADF: return STATUS_INVALID_HANDLE;
1322 case EBUSY: return STATUS_DEVICE_BUSY;
1323 case EPERM:
1324 case EACCES: return STATUS_ACCESS_DENIED;
1325 case EFAULT: return STATUS_NO_MEMORY;
1326 case EINVAL: return STATUS_INVALID_PARAMETER;
1327 case ENFILE:
1328 case EMFILE: return STATUS_TOO_MANY_OPENED_FILES;
1329 case EWOULDBLOCK: return STATUS_CANT_WAIT;
1330 case EINPROGRESS: return STATUS_PENDING;
1331 case EALREADY: return STATUS_NETWORK_BUSY;
1332 case ENOTSOCK: return STATUS_OBJECT_TYPE_MISMATCH;
1333 case EDESTADDRREQ: return STATUS_INVALID_PARAMETER;
1334 case EMSGSIZE: return STATUS_BUFFER_OVERFLOW;
1335 case EPROTONOSUPPORT:
1336 case ESOCKTNOSUPPORT:
1337 case EPFNOSUPPORT:
1338 case EAFNOSUPPORT:
1339 case EPROTOTYPE: return STATUS_NOT_SUPPORTED;
1340 case ENOPROTOOPT: return STATUS_INVALID_PARAMETER;
1341 case EOPNOTSUPP: return STATUS_NOT_SUPPORTED;
1342 case EADDRINUSE: return STATUS_ADDRESS_ALREADY_ASSOCIATED;
1343 case EADDRNOTAVAIL: return STATUS_INVALID_PARAMETER;
1344 case ECONNREFUSED: return STATUS_CONNECTION_REFUSED;
1345 case ESHUTDOWN: return STATUS_PIPE_DISCONNECTED;
1346 case ENOTCONN: return STATUS_CONNECTION_DISCONNECTED;
1347 case ETIMEDOUT: return STATUS_IO_TIMEOUT;
1348 case ENETUNREACH: return STATUS_NETWORK_UNREACHABLE;
1349 case EHOSTUNREACH: return STATUS_HOST_UNREACHABLE;
1350 case ENETDOWN: return STATUS_NETWORK_BUSY;
1351 case EPIPE:
1352 case ECONNRESET: return STATUS_CONNECTION_RESET;
1353 case ECONNABORTED: return STATUS_CONNECTION_ABORTED;
1354
1355 case 0: return STATUS_SUCCESS;
1356 default:
1357 errno = err;
1358 perror("wineserver: sock_get_ntstatus() can't map error");
1359 return STATUS_UNSUCCESSFUL;
1360 }
1361 }
1362
1363 static struct accept_req *alloc_accept_req( struct sock *acceptsock, struct async *async,
1364 const struct afd_accept_into_params *params )
1365 {
1366 struct accept_req *req = mem_alloc( sizeof(*req) );
1367
1368 if (req)
1369 {
1370 req->async = (struct async *)grab_object( async );
1371 req->acceptsock = acceptsock;
1372 req->accepted = 0;
1373 req->recv_len = 0;
1374 req->local_len = 0;
1375 if (params)
1376 {
1377 req->recv_len = params->recv_len;
1378 req->local_len = params->local_len;
1379 }
1380 }
1381 return req;
1382 }
1383
1384 static int sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
1385 {
1386 struct sock *sock = get_fd_user( fd );
1387
1388 assert( sock->obj.ops == &sock_ops );
1389
1390 if (get_unix_fd( fd ) == -1 && code != IOCTL_AFD_CREATE) return 0;
1391
1392 switch(code)
1393 {
1394 case IOCTL_AFD_CREATE:
1395 {
1396 const struct afd_create_params *params = get_req_data();
1397
1398 if (get_req_data_size() != sizeof(*params))
1399 {
1400 set_error( STATUS_INVALID_PARAMETER );
1401 return 0;
1402 }
1403 init_socket( sock, params->family, params->type, params->protocol, params->flags );
1404 return 0;
1405 }
1406
1407 case IOCTL_AFD_ACCEPT:
1408 {
1409 struct sock *acceptsock;
1410 obj_handle_t handle;
1411
1412 if (get_reply_max_size() != sizeof(handle))
1413 {
1414 set_error( STATUS_BUFFER_TOO_SMALL );
1415 return 0;
1416 }
1417
1418 if (!(acceptsock = accept_socket( sock )))
1419 {
1420 struct accept_req *req;
1421
1422 if (sock->state & FD_WINE_NONBLOCKING) return 0;
1423 if (get_error() != (0xc0010000 | WSAEWOULDBLOCK)) return 0;
1424
1425 if (!(req = alloc_accept_req( NULL, async, NULL ))) return 0;
1426 list_add_tail( &sock->accept_list, &req->entry );
1427
1428 queue_async( &sock->accept_q, async );
1429 sock_reselect( sock );
1430 set_error( STATUS_PENDING );
1431 return 1;
1432 }
1433 handle = alloc_handle( current->process, &acceptsock->obj,
1434 GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, OBJ_INHERIT );
1435 acceptsock->wparam = handle;
1436 release_object( acceptsock );
1437 set_reply_data( &handle, sizeof(handle) );
1438 return 0;
1439 }
1440
1441 case IOCTL_AFD_ACCEPT_INTO:
1442 {
1443 static const int access = FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | FILE_READ_DATA;
1444 const struct afd_accept_into_params *params = get_req_data();
1445 struct sock *acceptsock;
1446 unsigned int remote_len;
1447 struct accept_req *req;
1448
1449 if (get_req_data_size() != sizeof(*params) ||
1450 get_reply_max_size() < params->recv_len ||
1451 get_reply_max_size() - params->recv_len < params->local_len)
1452 {
1453 set_error( STATUS_BUFFER_TOO_SMALL );
1454 return 0;
1455 }
1456
1457 remote_len = get_reply_max_size() - params->recv_len - params->local_len;
1458 if (remote_len < sizeof(int))
1459 {
1460 set_error( STATUS_INVALID_PARAMETER );
1461 return 0;
1462 }
1463
1464 if (!(acceptsock = (struct sock *)get_handle_obj( current->process, params->accept_handle, access, &sock_ops )))
1465 return 0;
1466
1467 if (acceptsock->accept_recv_req)
1468 {
1469 release_object( acceptsock );
1470 set_win32_error( WSAEINVAL );
1471 return 0;
1472 }
1473
1474 if (!(req = alloc_accept_req( acceptsock, async, params ))) return 0;
1475 list_add_tail( &sock->accept_list, &req->entry );
1476 acceptsock->accept_recv_req = req;
1477 release_object( acceptsock );
1478
1479 acceptsock->wparam = params->accept_handle;
1480 queue_async( &sock->accept_q, async );
1481 sock_reselect( sock );
1482 set_error( STATUS_PENDING );
1483 return 1;
1484 }
1485
1486 case IOCTL_AFD_ADDRESS_LIST_CHANGE:
1487 if ((sock->state & FD_WINE_NONBLOCKING) && async_is_blocking( async ))
1488 {
1489 set_win32_error( WSAEWOULDBLOCK );
1490 return 0;
1491 }
1492 if (!sock_get_ifchange( sock )) return 0;
1493 queue_async( &sock->ifchange_q, async );
1494 set_error( STATUS_PENDING );
1495 return 1;
1496
1497 default:
1498 set_error( STATUS_NOT_SUPPORTED );
1499 return 0;
1500 }
1501 }
1502
1503 #ifdef HAVE_LINUX_RTNETLINK_H
1504
1505 /* only keep one ifchange object around, all sockets waiting for wakeups will look to it */
1506 static struct object *ifchange_object;
1507
1508 static void ifchange_dump( struct object *obj, int verbose );
1509 static struct fd *ifchange_get_fd( struct object *obj );
1510 static void ifchange_destroy( struct object *obj );
1511
1512 static int ifchange_get_poll_events( struct fd *fd );
1513 static void ifchange_poll_event( struct fd *fd, int event );
1514
1515 struct ifchange
1516 {
1517 struct object obj; /* object header */
1518 struct fd *fd; /* interface change file descriptor */
1519 struct list sockets; /* list of sockets to send interface change notifications */
1520 };
1521
1522 static const struct object_ops ifchange_ops =
1523 {
1524 sizeof(struct ifchange), /* size */
1525 ifchange_dump, /* dump */
1526 no_get_type, /* get_type */
1527 add_queue, /* add_queue */
1528 NULL, /* remove_queue */
1529 NULL, /* signaled */
1530 no_satisfied, /* satisfied */
1531 no_signal, /* signal */
1532 ifchange_get_fd, /* get_fd */
1533 default_fd_map_access, /* map_access */
1534 default_get_sd, /* get_sd */
1535 default_set_sd, /* set_sd */
1536 no_get_full_name, /* get_full_name */
1537 no_lookup_name, /* lookup_name */
1538 no_link_name, /* link_name */
1539 NULL, /* unlink_name */
1540 no_open_file, /* open_file */
1541 no_kernel_obj_list, /* get_kernel_obj_list */
1542 no_close_handle, /* close_handle */
1543 ifchange_destroy /* destroy */
1544 };
1545
1546 static const struct fd_ops ifchange_fd_ops =
1547 {
1548 ifchange_get_poll_events, /* get_poll_events */
1549 ifchange_poll_event, /* poll_event */
1550 NULL, /* get_fd_type */
1551 no_fd_read, /* read */
1552 no_fd_write, /* write */
1553 no_fd_flush, /* flush */
1554 no_fd_get_file_info, /* get_file_info */
1555 no_fd_get_volume_info, /* get_volume_info */
1556 no_fd_ioctl, /* ioctl */
1557 NULL, /* queue_async */
1558 NULL /* reselect_async */
1559 };
1560
1561 static void ifchange_dump( struct object *obj, int verbose )
1562 {
1563 assert( obj->ops == &ifchange_ops );
1564 fprintf( stderr, "Interface change\n" );
1565 }
1566
1567 static struct fd *ifchange_get_fd( struct object *obj )
1568 {
1569 struct ifchange *ifchange = (struct ifchange *)obj;
1570 return (struct fd *)grab_object( ifchange->fd );
1571 }
1572
1573 static void ifchange_destroy( struct object *obj )
1574 {
1575 struct ifchange *ifchange = (struct ifchange *)obj;
1576 assert( obj->ops == &ifchange_ops );
1577
1578 release_object( ifchange->fd );
1579
1580 /* reset the global ifchange object so that it will be recreated if it is needed again */
1581 assert( obj == ifchange_object );
1582 ifchange_object = NULL;
1583 }
1584
1585 static int ifchange_get_poll_events( struct fd *fd )
1586 {
1587 return POLLIN;
1588 }
1589
1590 /* wake up all the sockets waiting for a change notification event */
1591 static void ifchange_wake_up( struct object *obj, unsigned int status )
1592 {
1593 struct ifchange *ifchange = (struct ifchange *)obj;
1594 struct list *ptr, *next;
1595 assert( obj->ops == &ifchange_ops );
1596 assert( obj == ifchange_object );
1597
1598 LIST_FOR_EACH_SAFE( ptr, next, &ifchange->sockets )
1599 {
1600 struct sock *sock = LIST_ENTRY( ptr, struct sock, ifchange_entry );
1601
1602 assert( sock->ifchange_obj );
1603 async_wake_up( &sock->ifchange_q, status ); /* issue ifchange notification for the socket */
1604 sock_release_ifchange( sock ); /* remove socket from list and decrement ifchange refcount */
1605 }
1606 }
1607
1608 static void ifchange_poll_event( struct fd *fd, int event )
1609 {
1610 struct object *ifchange = get_fd_user( fd );
1611 unsigned int status = STATUS_PENDING;
1612 char buffer[PIPE_BUF];
1613 int r;
1614
1615 r = recv( get_unix_fd(fd), buffer, sizeof(buffer), MSG_DONTWAIT );
1616 if (r < 0)
1617 {
1618 if (errno == EWOULDBLOCK || (EWOULDBLOCK != EAGAIN && errno == EAGAIN))
1619 return; /* retry when poll() says the socket is ready */
1620 status = sock_get_ntstatus( errno );
1621 }
1622 else if (r > 0)
1623 {
1624 struct nlmsghdr *nlh;
1625
1626 for (nlh = (struct nlmsghdr *)buffer; NLMSG_OK(nlh, r); nlh = NLMSG_NEXT(nlh, r))
1627 {
1628 if (nlh->nlmsg_type == NLMSG_DONE)
1629 break;
1630 if (nlh->nlmsg_type == RTM_NEWADDR || nlh->nlmsg_type == RTM_DELADDR)
1631 status = STATUS_SUCCESS;
1632 }
1633 }
1634 else status = STATUS_CANCELLED;
1635
1636 if (status != STATUS_PENDING) ifchange_wake_up( ifchange, status );
1637 }
1638
1639 #endif
1640
1641 /* we only need one of these interface notification objects, all of the sockets dependent upon
1642 * it will wake up when a notification event occurs */
1643 static struct object *get_ifchange( void )
1644 {
1645 #ifdef HAVE_LINUX_RTNETLINK_H
1646 struct ifchange *ifchange;
1647 struct sockaddr_nl addr;
1648 int unix_fd;
1649
1650 if (ifchange_object)
1651 {
1652 /* increment the refcount for each socket that uses the ifchange object */
1653 return grab_object( ifchange_object );
1654 }
1655
1656 /* create the socket we need for processing interface change notifications */
1657 unix_fd = socket( PF_NETLINK, SOCK_RAW, NETLINK_ROUTE );
1658 if (unix_fd == -1)
1659 {
1660 set_win32_error( sock_get_error( errno ));
1661 return NULL;
1662 }
1663 fcntl( unix_fd, F_SETFL, O_NONBLOCK ); /* make socket nonblocking */
1664 memset( &addr, 0, sizeof(addr) );
1665 addr.nl_family = AF_NETLINK;
1666 addr.nl_groups = RTMGRP_IPV4_IFADDR;
1667 /* bind the socket to the special netlink kernel interface */
1668 if (bind( unix_fd, (struct sockaddr *)&addr, sizeof(addr) ) == -1)
1669 {
1670 close( unix_fd );
1671 set_win32_error( sock_get_error( errno ));
1672 return NULL;
1673 }
1674 if (!(ifchange = alloc_object( &ifchange_ops )))
1675 {
1676 close( unix_fd );
1677 set_error( STATUS_NO_MEMORY );
1678 return NULL;
1679 }
1680 list_init( &ifchange->sockets );
1681 if (!(ifchange->fd = create_anonymous_fd( &ifchange_fd_ops, unix_fd, &ifchange->obj, 0 )))
1682 {
1683 release_object( ifchange );
1684 set_error( STATUS_NO_MEMORY );
1685 return NULL;
1686 }
1687 set_fd_events( ifchange->fd, POLLIN ); /* enable read wakeup on the file descriptor */
1688
1689 /* the ifchange object is now successfully configured */
1690 ifchange_object = &ifchange->obj;
1691 return &ifchange->obj;
1692 #else
1693 set_error( STATUS_NOT_SUPPORTED );
1694 return NULL;
1695 #endif
1696 }
1697
1698 /* add the socket to the interface change notification list */
1699 static void ifchange_add_sock( struct object *obj, struct sock *sock )
1700 {
1701 #ifdef HAVE_LINUX_RTNETLINK_H
1702 struct ifchange *ifchange = (struct ifchange *)obj;
1703
1704 list_add_tail( &ifchange->sockets, &sock->ifchange_entry );
1705 #endif
1706 }
1707
1708 /* create a new ifchange queue for a specific socket or, if one already exists, reuse the existing one */
1709 static struct object *sock_get_ifchange( struct sock *sock )
1710 {
1711 struct object *ifchange;
1712
1713 if (sock->ifchange_obj) /* reuse existing ifchange_obj for this socket */
1714 return sock->ifchange_obj;
1715
1716 if (!(ifchange = get_ifchange()))
1717 return NULL;
1718
1719 /* add the socket to the ifchange notification list */
1720 ifchange_add_sock( ifchange, sock );
1721 sock->ifchange_obj = ifchange;
1722 return ifchange;
1723 }
1724
1725 /* destroy an existing ifchange queue for a specific socket */
1726 static void sock_release_ifchange( struct sock *sock )
1727 {
1728 if (sock->ifchange_obj)
1729 {
1730 list_remove( &sock->ifchange_entry );
1731 release_object( sock->ifchange_obj );
1732 sock->ifchange_obj = NULL;
1733 }
1734 }
1735
1736 static struct object_type *socket_device_get_type( struct object *obj );
1737 static void socket_device_dump( struct object *obj, int verbose );
1738 static struct object *socket_device_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attr );
1739 static struct object *socket_device_open_file( struct object *obj, unsigned int access,
1740 unsigned int sharing, unsigned int options );
1741
1742 static const struct object_ops socket_device_ops =
1743 {
1744 sizeof(struct object), /* size */
1745 socket_device_dump, /* dump */
1746 socket_device_get_type, /* get_type */
1747 no_add_queue, /* add_queue */
1748 NULL, /* remove_queue */
1749 NULL, /* signaled */
1750 no_satisfied, /* satisfied */
1751 no_signal, /* signal */
1752 no_get_fd, /* get_fd */
1753 default_fd_map_access, /* map_access */
1754 default_get_sd, /* get_sd */
1755 default_set_sd, /* set_sd */
1756 default_get_full_name, /* get_full_name */
1757 socket_device_lookup_name, /* lookup_name */
1758 directory_link_name, /* link_name */
1759 default_unlink_name, /* unlink_name */
1760 socket_device_open_file, /* open_file */
1761 no_kernel_obj_list, /* get_kernel_obj_list */
1762 no_close_handle, /* close_handle */
1763 no_destroy /* destroy */
1764 };
1765
1766 static struct object_type *socket_device_get_type( struct object *obj )
1767 {
1768 static const WCHAR name[] = {'D','e','v','i','c','e'};
1769 static const struct unicode_str str = { name, sizeof(name) };
1770 return get_object_type( &str );
1771 }
1772
1773 static void socket_device_dump( struct object *obj, int verbose )
1774 {
1775 fputs( "Socket device\n", stderr );
1776 }
1777
1778 static struct object *socket_device_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attr )
1779 {
1780 return NULL;
1781 }
1782
1783 static struct object *socket_device_open_file( struct object *obj, unsigned int access,
1784 unsigned int sharing, unsigned int options )
1785 {
1786 struct sock *sock;
1787
1788 if (!(sock = create_socket())) return NULL;
1789 if (!(sock->fd = alloc_pseudo_fd( &sock_fd_ops, &sock->obj, options )))
1790 {
1791 release_object( sock );
1792 return NULL;
1793 }
1794 return &sock->obj;
1795 }
1796
1797 struct object *create_socket_device( struct object *root, const struct unicode_str *name,
1798 unsigned int attr, const struct security_descriptor *sd )
1799 {
1800 return create_named_object( root, &socket_device_ops, name, attr, sd );
1801 }
1802
1803 /* set socket event parameters */
1804 DECL_HANDLER(set_socket_event)
1805 {
1806 struct sock *sock;
1807 struct event *old_event;
1808
1809 if (!(sock = (struct sock *)get_handle_obj( current->process, req->handle,
1810 FILE_WRITE_ATTRIBUTES, &sock_ops))) return;
1811 if (get_unix_fd( sock->fd ) == -1) return;
1812 old_event = sock->event;
1813 sock->mask = req->mask;
1814 sock->hmask &= ~req->mask; /* re-enable held events */
1815 sock->event = NULL;
1816 sock->window = req->window;
1817 sock->message = req->msg;
1818 sock->wparam = req->handle; /* wparam is the socket handle */
1819 if (req->event) sock->event = get_event_obj( current->process, req->event, EVENT_MODIFY_STATE );
1820
1821 if (debug_level && sock->event) fprintf(stderr, "event ptr: %p\n", sock->event);
1822
1823 sock_reselect( sock );
1824
1825 sock->state |= FD_WINE_NONBLOCKING;
1826
1827 /* if a network event is pending, signal the event object
1828 it is possible that FD_CONNECT or FD_ACCEPT network events has happened
1829 before a WSAEventSelect() was done on it.
1830 (when dealing with Asynchronous socket) */
1831 sock_wake_up( sock );
1832
1833 if (old_event) release_object( old_event ); /* we're through with it */
1834 release_object( &sock->obj );
1835 }
1836
1837 /* get socket event parameters */
1838 DECL_HANDLER(get_socket_event)
1839 {
1840 struct sock *sock;
1841
1842 if (!(sock = (struct sock *)get_handle_obj( current->process, req->handle,
1843 FILE_READ_ATTRIBUTES, &sock_ops ))) return;
1844 if (get_unix_fd( sock->fd ) == -1) return;
1845 reply->mask = sock->mask;
1846 reply->pmask = sock->pmask;
1847 reply->state = sock->state;
1848 set_reply_data( sock->errors, min( get_reply_max_size(), sizeof(sock->errors) ));
1849
1850 if (req->service)
1851 {
1852 if (req->c_event)
1853 {
1854 struct event *cevent = get_event_obj( current->process, req->c_event,
1855 EVENT_MODIFY_STATE );
1856 if (cevent)
1857 {
1858 reset_event( cevent );
1859 release_object( cevent );
1860 }
1861 }
1862 sock->pmask = 0;
1863 sock_reselect( sock );
1864 }
1865 release_object( &sock->obj );
1866 }
1867
1868 /* re-enable pending socket events */
1869 DECL_HANDLER(enable_socket_event)
1870 {
1871 struct sock *sock;
1872
1873 if (!(sock = (struct sock*)get_handle_obj( current->process, req->handle,
1874 FILE_WRITE_ATTRIBUTES, &sock_ops)))
1875 return;
1876
1877 if (get_unix_fd( sock->fd ) == -1) return;
1878
1879 /* for event-based notification, windows erases stale events */
1880 sock->pmask &= ~req->mask;
1881
1882 sock->hmask &= ~req->mask;
1883 sock->state |= req->sstate;
1884 sock->state &= ~req->cstate;
1885 if (sock->type != WS_SOCK_STREAM) sock->state &= ~STREAM_FLAG_MASK;
1886
1887 sock_reselect( sock );
1888
1889 release_object( &sock->obj );
1890 }
1891
1892 DECL_HANDLER(set_socket_deferred)
1893 {
1894 struct sock *sock, *acceptsock;
1895
1896 sock=(struct sock *)get_handle_obj( current->process, req->handle, FILE_WRITE_ATTRIBUTES, &sock_ops );
1897 if ( !sock )
1898 return;
1899
1900 acceptsock = (struct sock *)get_handle_obj( current->process, req->deferred, 0, &sock_ops );
1901 if ( !acceptsock )
1902 {
1903 release_object( sock );
1904 return;
1905 }
1906 sock->deferred = acceptsock;
1907 release_object( sock );
1908 }
1909
1910 DECL_HANDLER(get_socket_info)
1911 {
1912 struct sock *sock;
1913
1914 sock = (struct sock *)get_handle_obj( current->process, req->handle, FILE_READ_ATTRIBUTES, &sock_ops );
1915 if (!sock) return;
1916
1917 if (get_unix_fd( sock->fd ) == -1) return;
1918
1919 reply->family = sock->family;
1920 reply->type = sock->type;
1921 reply->protocol = sock->proto;
1922
1923 release_object( &sock->obj );
1924 }
Windows API implementation