2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1995 Søren Schmidt
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 /* XXX we use functions that might not exist. */
33 #include "opt_compat.h"
34 #include "opt_inet6.h"
36 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/sysproto.h>
40 #include <sys/capsicum.h>
41 #include <sys/fcntl.h>
43 #include <sys/filedesc.h>
44 #include <sys/limits.h>
46 #include <sys/malloc.h>
47 #include <sys/mutex.h>
49 #include <sys/socket.h>
50 #include <sys/socketvar.h>
51 #include <sys/syscallsubr.h>
54 #include <sys/syslog.h>
56 #include <sys/unistd.h>
58 #include <security/audit/audit.h>
62 #include <netinet/in.h>
63 #include <netinet/in_systm.h>
64 #include <netinet/ip.h>
65 #include <netinet/tcp.h>
67 #include <netinet/ip6.h>
68 #include <netinet6/ip6_var.h>
72 #include <machine/../linux32/linux.h>
73 #include <machine/../linux32/linux32_proto.h>
75 #include <machine/../linux/linux.h>
76 #include <machine/../linux/linux_proto.h>
78 #include <compat/linux/linux_common.h>
79 #include <compat/linux/linux_emul.h>
80 #include <compat/linux/linux_file.h>
81 #include <compat/linux/linux_mib.h>
82 #include <compat/linux/linux_socket.h>
83 #include <compat/linux/linux_timer.h>
84 #include <compat/linux/linux_util.h>
86 #define SECURITY_CONTEXT_STRING "unconfined"
88 static int linux_sendmsg_common(struct thread *, l_int, struct l_msghdr *,
90 static int linux_recvmsg_common(struct thread *, l_int, struct l_msghdr *,
91 l_uint, struct msghdr *);
92 static int linux_set_socket_flags(int, int *);
95 linux_to_bsd_sockopt_level(int level)
98 if (level == LINUX_SOL_SOCKET)
100 /* Remaining values are RFC-defined protocol numbers. */
105 bsd_to_linux_sockopt_level(int level)
108 if (level == SOL_SOCKET)
109 return (LINUX_SOL_SOCKET);
114 linux_to_bsd_ip_sockopt(int opt)
118 /* known and translated sockopts */
123 case LINUX_IP_HDRINCL:
125 case LINUX_IP_OPTIONS:
127 case LINUX_IP_RECVOPTS:
128 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_RECVOPTS");
129 return (IP_RECVOPTS);
130 case LINUX_IP_RETOPTS:
131 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_REETOPTS");
133 case LINUX_IP_RECVTTL:
134 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_RECVTTL");
136 case LINUX_IP_RECVTOS:
137 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_RECVTOS");
139 case LINUX_IP_FREEBIND:
140 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_FREEBIND");
142 case LINUX_IP_IPSEC_POLICY:
143 /* we have this option, but not documented in ip(4) manpage */
144 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_IPSEC_POLICY");
145 return (IP_IPSEC_POLICY);
146 case LINUX_IP_MINTTL:
147 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_MINTTL");
149 case LINUX_IP_MULTICAST_IF:
150 return (IP_MULTICAST_IF);
151 case LINUX_IP_MULTICAST_TTL:
152 return (IP_MULTICAST_TTL);
153 case LINUX_IP_MULTICAST_LOOP:
154 return (IP_MULTICAST_LOOP);
155 case LINUX_IP_ADD_MEMBERSHIP:
156 return (IP_ADD_MEMBERSHIP);
157 case LINUX_IP_DROP_MEMBERSHIP:
158 return (IP_DROP_MEMBERSHIP);
159 case LINUX_IP_UNBLOCK_SOURCE:
160 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_UNBLOCK_SOURCE");
161 return (IP_UNBLOCK_SOURCE);
162 case LINUX_IP_BLOCK_SOURCE:
163 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_BLOCK_SOURCE");
164 return (IP_BLOCK_SOURCE);
165 case LINUX_IP_ADD_SOURCE_MEMBERSHIP:
166 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_ADD_SOURCE_MEMBERSHIP");
167 return (IP_ADD_SOURCE_MEMBERSHIP);
168 case LINUX_IP_DROP_SOURCE_MEMBERSHIP:
169 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_DROP_SOURCE_MEMBERSHIP");
170 return (IP_DROP_SOURCE_MEMBERSHIP);
171 case LINUX_MCAST_JOIN_GROUP:
172 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_MCAST_JOIN_GROUP");
173 return (MCAST_JOIN_GROUP);
174 case LINUX_MCAST_LEAVE_GROUP:
175 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_MCAST_LEAVE_GROUP");
176 return (MCAST_LEAVE_GROUP);
177 case LINUX_MCAST_JOIN_SOURCE_GROUP:
178 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_MCAST_JOIN_SOURCE_GROUP");
179 return (MCAST_JOIN_SOURCE_GROUP);
180 case LINUX_MCAST_LEAVE_SOURCE_GROUP:
181 LINUX_RATELIMIT_MSG_NOTTESTED("IPv4 socket option IP_MCAST_LEAVE_SOURCE_GROUP");
182 return (MCAST_LEAVE_SOURCE_GROUP);
183 case LINUX_IP_RECVORIGDSTADDR:
184 return (IP_RECVORIGDSTADDR);
186 /* known but not implemented sockopts */
187 case LINUX_IP_ROUTER_ALERT:
188 LINUX_RATELIMIT_MSG_OPT1(
189 "unsupported IPv4 socket option IP_ROUTER_ALERT (%d), you can not do user-space routing from linux programs",
192 case LINUX_IP_PKTINFO:
193 LINUX_RATELIMIT_MSG_OPT1(
194 "unsupported IPv4 socket option IP_PKTINFO (%d), you can not get extended packet info for datagram sockets in linux programs",
197 case LINUX_IP_PKTOPTIONS:
198 LINUX_RATELIMIT_MSG_OPT1(
199 "unsupported IPv4 socket option IP_PKTOPTIONS (%d)",
202 case LINUX_IP_MTU_DISCOVER:
203 LINUX_RATELIMIT_MSG_OPT1(
204 "unsupported IPv4 socket option IP_MTU_DISCOVER (%d), your linux program can not control path-MTU discovery",
207 case LINUX_IP_RECVERR:
208 /* needed by steam */
209 LINUX_RATELIMIT_MSG_OPT1(
210 "unsupported IPv4 socket option IP_RECVERR (%d), you can not get extended reliability info in linux programs",
214 LINUX_RATELIMIT_MSG_OPT1(
215 "unsupported IPv4 socket option IP_MTU (%d), your linux program can not control the MTU on this socket",
218 case LINUX_IP_XFRM_POLICY:
219 LINUX_RATELIMIT_MSG_OPT1(
220 "unsupported IPv4 socket option IP_XFRM_POLICY (%d)",
223 case LINUX_IP_PASSSEC:
224 /* needed by steam */
225 LINUX_RATELIMIT_MSG_OPT1(
226 "unsupported IPv4 socket option IP_PASSSEC (%d), you can not get IPSEC related credential information associated with this socket in linux programs -- if you do not use IPSEC, you can ignore this",
229 case LINUX_IP_TRANSPARENT:
230 /* IP_BINDANY or more? */
231 LINUX_RATELIMIT_MSG_OPT1(
232 "unsupported IPv4 socket option IP_TRANSPARENT (%d), you can not enable transparent proxying in linux programs -- note, IP_FREEBIND is supported, no idea if the FreeBSD IP_BINDANY is equivalent to the Linux IP_TRANSPARENT or not, any info is welcome",
235 case LINUX_IP_NODEFRAG:
236 LINUX_RATELIMIT_MSG_OPT1(
237 "unsupported IPv4 socket option IP_NODEFRAG (%d)",
240 case LINUX_IP_CHECKSUM:
241 LINUX_RATELIMIT_MSG_OPT1(
242 "unsupported IPv4 socket option IP_CHECKSUM (%d)",
245 case LINUX_IP_BIND_ADDRESS_NO_PORT:
246 LINUX_RATELIMIT_MSG_OPT1(
247 "unsupported IPv4 socket option IP_BIND_ADDRESS_NO_PORT (%d)",
250 case LINUX_IP_RECVFRAGSIZE:
251 LINUX_RATELIMIT_MSG_OPT1(
252 "unsupported IPv4 socket option IP_RECVFRAGSIZE (%d)",
255 case LINUX_MCAST_MSFILTER:
256 LINUX_RATELIMIT_MSG_OPT1(
257 "unsupported IPv4 socket option IP_MCAST_MSFILTER (%d)",
260 case LINUX_IP_MULTICAST_ALL:
261 LINUX_RATELIMIT_MSG_OPT1(
262 "unsupported IPv4 socket option IP_MULTICAST_ALL (%d), your linux program will not see all multicast groups joined by the entire system, only those the program joined itself on this socket",
265 case LINUX_IP_UNICAST_IF:
266 LINUX_RATELIMIT_MSG_OPT1(
267 "unsupported IPv4 socket option IP_UNICAST_IF (%d)",
271 /* unknown sockopts */
278 linux_to_bsd_ip6_sockopt(int opt)
282 /* known and translated sockopts */
283 case LINUX_IPV6_2292PKTINFO:
284 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_2292PKTINFO");
285 return (IPV6_2292PKTINFO);
286 case LINUX_IPV6_2292HOPOPTS:
287 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_2292HOPOPTS");
288 return (IPV6_2292HOPOPTS);
289 case LINUX_IPV6_2292DSTOPTS:
290 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_2292DSTOPTS");
291 return (IPV6_2292DSTOPTS);
292 case LINUX_IPV6_2292RTHDR:
293 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_2292RTHDR");
294 return (IPV6_2292RTHDR);
295 case LINUX_IPV6_2292PKTOPTIONS:
296 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_2292PKTOPTIONS");
297 return (IPV6_2292PKTOPTIONS);
298 case LINUX_IPV6_CHECKSUM:
299 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_CHECKSUM");
300 return (IPV6_CHECKSUM);
301 case LINUX_IPV6_2292HOPLIMIT:
302 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_2292HOPLIMIT");
303 return (IPV6_2292HOPLIMIT);
304 case LINUX_IPV6_NEXTHOP:
305 return (IPV6_NEXTHOP);
306 case LINUX_IPV6_UNICAST_HOPS:
307 return (IPV6_UNICAST_HOPS);
308 case LINUX_IPV6_MULTICAST_IF:
309 return (IPV6_MULTICAST_IF);
310 case LINUX_IPV6_MULTICAST_HOPS:
311 return (IPV6_MULTICAST_HOPS);
312 case LINUX_IPV6_MULTICAST_LOOP:
313 return (IPV6_MULTICAST_LOOP);
314 case LINUX_IPV6_ADD_MEMBERSHIP:
315 return (IPV6_JOIN_GROUP);
316 case LINUX_IPV6_DROP_MEMBERSHIP:
317 return (IPV6_LEAVE_GROUP);
318 case LINUX_IPV6_V6ONLY:
319 return (IPV6_V6ONLY);
320 case LINUX_IPV6_IPSEC_POLICY:
321 /* we have this option, but not documented in ip6(4) manpage */
322 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_IPSEC_POLICY");
323 return (IPV6_IPSEC_POLICY);
324 case LINUX_MCAST_JOIN_GROUP:
325 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_JOIN_GROUP");
326 return (IPV6_JOIN_GROUP);
327 case LINUX_MCAST_LEAVE_GROUP:
328 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_LEAVE_GROUP");
329 return (IPV6_LEAVE_GROUP);
330 case LINUX_IPV6_RECVPKTINFO:
331 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RECVPKTINFO");
332 return (IPV6_RECVPKTINFO);
333 case LINUX_IPV6_PKTINFO:
334 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_PKTINFO");
335 return (IPV6_PKTINFO);
336 case LINUX_IPV6_RECVHOPLIMIT:
337 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RECVHOPLIMIT");
338 return (IPV6_RECVHOPLIMIT);
339 case LINUX_IPV6_HOPLIMIT:
340 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_HOPLIMIT");
341 return (IPV6_HOPLIMIT);
342 case LINUX_IPV6_RECVHOPOPTS:
343 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RECVHOPOPTS");
344 return (IPV6_RECVHOPOPTS);
345 case LINUX_IPV6_HOPOPTS:
346 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_HOPOPTS");
347 return (IPV6_HOPOPTS);
348 case LINUX_IPV6_RTHDRDSTOPTS:
349 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RTHDRDSTOPTS");
350 return (IPV6_RTHDRDSTOPTS);
351 case LINUX_IPV6_RECVRTHDR:
352 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RECVRTHDR");
353 return (IPV6_RECVRTHDR);
354 case LINUX_IPV6_RTHDR:
355 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RTHDR");
357 case LINUX_IPV6_RECVDSTOPTS:
358 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RECVDSTOPTS");
359 return (IPV6_RECVDSTOPTS);
360 case LINUX_IPV6_DSTOPTS:
361 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_DSTOPTS");
362 return (IPV6_DSTOPTS);
363 case LINUX_IPV6_RECVPATHMTU:
364 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_RECVPATHMTU");
365 return (IPV6_RECVPATHMTU);
366 case LINUX_IPV6_PATHMTU:
367 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_PATHMTU");
368 return (IPV6_PATHMTU);
369 case LINUX_IPV6_DONTFRAG:
370 return (IPV6_DONTFRAG);
371 case LINUX_IPV6_AUTOFLOWLABEL:
372 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_AUTOFLOWLABEL");
373 return (IPV6_AUTOFLOWLABEL);
374 case LINUX_IPV6_ORIGDSTADDR:
375 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_ORIGDSTADDR");
376 return (IPV6_ORIGDSTADDR);
377 case LINUX_IPV6_FREEBIND:
378 LINUX_RATELIMIT_MSG_NOTTESTED("IPv6 socket option IPV6_FREEBIND");
379 return (IPV6_BINDANY);
381 /* known but not implemented sockopts */
382 case LINUX_IPV6_ADDRFORM:
383 LINUX_RATELIMIT_MSG_OPT1(
384 "unsupported IPv6 socket option IPV6_ADDRFORM (%d), you linux program can not convert the socket to IPv4",
387 case LINUX_IPV6_AUTHHDR:
388 LINUX_RATELIMIT_MSG_OPT1(
389 "unsupported IPv6 socket option IPV6_AUTHHDR (%d), your linux program can not get the authentication header info of IPv6 packets",
392 case LINUX_IPV6_FLOWINFO:
393 LINUX_RATELIMIT_MSG_OPT1(
394 "unsupported IPv6 socket option IPV6_FLOWINFO (%d), your linux program can not get the flowid of IPv6 packets",
397 case LINUX_IPV6_ROUTER_ALERT:
398 LINUX_RATELIMIT_MSG_OPT1(
399 "unsupported IPv6 socket option IPV6_ROUTER_ALERT (%d), you can not do user-space routing from linux programs",
402 case LINUX_IPV6_MTU_DISCOVER:
403 LINUX_RATELIMIT_MSG_OPT1(
404 "unsupported IPv6 socket option IPV6_MTU_DISCOVER (%d), your linux program can not control path-MTU discovery",
408 LINUX_RATELIMIT_MSG_OPT1(
409 "unsupported IPv6 socket option IPV6_MTU (%d), your linux program can not control the MTU on this socket",
412 case LINUX_IPV6_JOIN_ANYCAST:
413 LINUX_RATELIMIT_MSG_OPT1(
414 "unsupported IPv6 socket option IPV6_JOIN_ANYCAST (%d)",
417 case LINUX_IPV6_LEAVE_ANYCAST:
418 LINUX_RATELIMIT_MSG_OPT1(
419 "unsupported IPv6 socket option IPV6_LEAVE_ANYCAST (%d)",
422 case LINUX_IPV6_MULTICAST_ALL:
423 LINUX_RATELIMIT_MSG_OPT1(
424 "unsupported IPv6 socket option IPV6_MULTICAST_ALL (%d)",
427 case LINUX_IPV6_ROUTER_ALERT_ISOLATE:
428 LINUX_RATELIMIT_MSG_OPT1(
429 "unsupported IPv6 socket option IPV6_ROUTER_ALERT_ISOLATE (%d)",
432 case LINUX_IPV6_FLOWLABEL_MGR:
433 LINUX_RATELIMIT_MSG_OPT1(
434 "unsupported IPv6 socket option IPV6_FLOWLABEL_MGR (%d)",
437 case LINUX_IPV6_FLOWINFO_SEND:
438 LINUX_RATELIMIT_MSG_OPT1(
439 "unsupported IPv6 socket option IPV6_FLOWINFO_SEND (%d)",
442 case LINUX_IPV6_XFRM_POLICY:
443 LINUX_RATELIMIT_MSG_OPT1(
444 "unsupported IPv6 socket option IPV6_XFRM_POLICY (%d)",
447 case LINUX_IPV6_HDRINCL:
448 LINUX_RATELIMIT_MSG_OPT1(
449 "unsupported IPv6 socket option IPV6_HDRINCL (%d)",
452 case LINUX_MCAST_BLOCK_SOURCE:
453 LINUX_RATELIMIT_MSG_OPT1(
454 "unsupported IPv6 socket option MCAST_BLOCK_SOURCE (%d), your linux program may see more multicast stuff than it wants",
457 case LINUX_MCAST_UNBLOCK_SOURCE:
458 LINUX_RATELIMIT_MSG_OPT1(
459 "unsupported IPv6 socket option MCAST_UNBLOCK_SOURCE (%d), your linux program may not see all the multicast stuff it wants",
462 case LINUX_MCAST_JOIN_SOURCE_GROUP:
463 LINUX_RATELIMIT_MSG_OPT1(
464 "unsupported IPv6 socket option MCAST_JOIN_SOURCE_GROUP (%d), your linux program is not able to join a multicast source group",
467 case LINUX_MCAST_LEAVE_SOURCE_GROUP:
468 LINUX_RATELIMIT_MSG_OPT1(
469 "unsupported IPv6 socket option MCAST_LEAVE_SOURCE_GROUP (%d), your linux program is not able to leave a multicast source group -- but it was also not able to join one, so no issue",
472 case LINUX_MCAST_MSFILTER:
473 LINUX_RATELIMIT_MSG_OPT1(
474 "unsupported IPv6 socket option MCAST_MSFILTER (%d), your linux program can not manipulate the multicast filter, it may see more multicast data than it wants to see",
477 case LINUX_IPV6_ADDR_PREFERENCES:
478 LINUX_RATELIMIT_MSG_OPT1(
479 "unsupported IPv6 socket option IPV6_ADDR_PREFERENCES (%d)",
482 case LINUX_IPV6_MINHOPCOUNT:
483 LINUX_RATELIMIT_MSG_OPT1(
484 "unsupported IPv6 socket option IPV6_MINHOPCOUNT (%d)",
487 case LINUX_IPV6_TRANSPARENT:
488 /* IP_BINDANY or more? */
489 LINUX_RATELIMIT_MSG_OPT1(
490 "unsupported IPv6 socket option IPV6_TRANSPARENT (%d), you can not enable transparent proxying in linux programs -- note, IP_FREEBIND is supported, no idea if the FreeBSD IP_BINDANY is equivalent to the Linux IP_TRANSPARENT or not, any info is welcome",
493 case LINUX_IPV6_UNICAST_IF:
494 LINUX_RATELIMIT_MSG_OPT1(
495 "unsupported IPv6 socket option IPV6_UNICAST_IF (%d)",
498 case LINUX_IPV6_RECVFRAGSIZE:
499 LINUX_RATELIMIT_MSG_OPT1(
500 "unsupported IPv6 socket option IPV6_RECVFRAGSIZE (%d)",
504 /* unknown sockopts */
511 linux_to_bsd_so_sockopt(int opt)
517 case LINUX_SO_REUSEADDR:
518 return (SO_REUSEADDR);
523 case LINUX_SO_DONTROUTE:
524 return (SO_DONTROUTE);
525 case LINUX_SO_BROADCAST:
526 return (SO_BROADCAST);
527 case LINUX_SO_SNDBUF:
528 case LINUX_SO_SNDBUFFORCE:
530 case LINUX_SO_RCVBUF:
531 case LINUX_SO_RCVBUFFORCE:
533 case LINUX_SO_KEEPALIVE:
534 return (SO_KEEPALIVE);
535 case LINUX_SO_OOBINLINE:
536 return (SO_OOBINLINE);
537 case LINUX_SO_LINGER:
539 case LINUX_SO_REUSEPORT:
540 return (SO_REUSEPORT_LB);
541 case LINUX_SO_PASSCRED:
542 return (LOCAL_CREDS_PERSISTENT);
543 case LINUX_SO_PEERCRED:
544 return (LOCAL_PEERCRED);
545 case LINUX_SO_RCVLOWAT:
546 return (SO_RCVLOWAT);
547 case LINUX_SO_SNDLOWAT:
548 return (SO_SNDLOWAT);
549 case LINUX_SO_RCVTIMEO:
550 return (SO_RCVTIMEO);
551 case LINUX_SO_SNDTIMEO:
552 return (SO_SNDTIMEO);
553 case LINUX_SO_TIMESTAMPO:
554 case LINUX_SO_TIMESTAMPN:
555 return (SO_TIMESTAMP);
556 case LINUX_SO_TIMESTAMPNSO:
557 case LINUX_SO_TIMESTAMPNSN:
559 case LINUX_SO_ACCEPTCONN:
560 return (SO_ACCEPTCONN);
561 case LINUX_SO_PROTOCOL:
562 return (SO_PROTOCOL);
563 case LINUX_SO_DOMAIN:
570 linux_to_bsd_tcp_sockopt(int opt)
574 case LINUX_TCP_NODELAY:
575 return (TCP_NODELAY);
576 case LINUX_TCP_MAXSEG:
580 case LINUX_TCP_KEEPIDLE:
581 return (TCP_KEEPIDLE);
582 case LINUX_TCP_KEEPINTVL:
583 return (TCP_KEEPINTVL);
584 case LINUX_TCP_KEEPCNT:
585 return (TCP_KEEPCNT);
587 LINUX_RATELIMIT_MSG_OPT1(
588 "unsupported TCP socket option TCP_INFO (%d)", opt);
590 case LINUX_TCP_MD5SIG:
597 linux_to_bsd_msg_flags(int flags)
601 if (flags & LINUX_MSG_OOB)
602 ret_flags |= MSG_OOB;
603 if (flags & LINUX_MSG_PEEK)
604 ret_flags |= MSG_PEEK;
605 if (flags & LINUX_MSG_DONTROUTE)
606 ret_flags |= MSG_DONTROUTE;
607 if (flags & LINUX_MSG_CTRUNC)
608 ret_flags |= MSG_CTRUNC;
609 if (flags & LINUX_MSG_TRUNC)
610 ret_flags |= MSG_TRUNC;
611 if (flags & LINUX_MSG_DONTWAIT)
612 ret_flags |= MSG_DONTWAIT;
613 if (flags & LINUX_MSG_EOR)
614 ret_flags |= MSG_EOR;
615 if (flags & LINUX_MSG_WAITALL)
616 ret_flags |= MSG_WAITALL;
617 if (flags & LINUX_MSG_NOSIGNAL)
618 ret_flags |= MSG_NOSIGNAL;
619 if (flags & LINUX_MSG_PROXY)
620 LINUX_RATELIMIT_MSG_OPT1("socket message flag MSG_PROXY (%d) not handled",
622 if (flags & LINUX_MSG_FIN)
623 LINUX_RATELIMIT_MSG_OPT1("socket message flag MSG_FIN (%d) not handled",
625 if (flags & LINUX_MSG_SYN)
626 LINUX_RATELIMIT_MSG_OPT1("socket message flag MSG_SYN (%d) not handled",
628 if (flags & LINUX_MSG_CONFIRM)
629 LINUX_RATELIMIT_MSG_OPT1("socket message flag MSG_CONFIRM (%d) not handled",
631 if (flags & LINUX_MSG_RST)
632 LINUX_RATELIMIT_MSG_OPT1("socket message flag MSG_RST (%d) not handled",
634 if (flags & LINUX_MSG_ERRQUEUE)
635 LINUX_RATELIMIT_MSG_OPT1("socket message flag MSG_ERRQUEUE (%d) not handled",
641 linux_to_bsd_cmsg_type(int cmsg_type)
645 case LINUX_SCM_RIGHTS:
647 case LINUX_SCM_CREDENTIALS:
654 bsd_to_linux_ip_cmsg_type(int cmsg_type)
658 case IP_RECVORIGDSTADDR:
659 return (LINUX_IP_RECVORIGDSTADDR);
665 bsd_to_linux_cmsg_type(struct proc *p, int cmsg_type, int cmsg_level)
667 struct linux_pemuldata *pem;
669 if (cmsg_level == IPPROTO_IP)
670 return (bsd_to_linux_ip_cmsg_type(cmsg_type));
671 if (cmsg_level != SOL_SOCKET)
678 return (LINUX_SCM_RIGHTS);
680 return (LINUX_SCM_CREDENTIALS);
682 return (LINUX_SCM_CREDENTIALS);
684 return (pem->so_timestamp);
686 return (pem->so_timestampns);
692 linux_to_bsd_msghdr(struct msghdr *bhdr, const struct l_msghdr *lhdr)
694 if (lhdr->msg_controllen > INT_MAX)
697 bhdr->msg_name = PTRIN(lhdr->msg_name);
698 bhdr->msg_namelen = lhdr->msg_namelen;
699 bhdr->msg_iov = PTRIN(lhdr->msg_iov);
700 bhdr->msg_iovlen = lhdr->msg_iovlen;
701 bhdr->msg_control = PTRIN(lhdr->msg_control);
704 * msg_controllen is skipped since BSD and LINUX control messages
705 * are potentially different sizes (e.g. the cred structure used
706 * by SCM_CREDS is different between the two operating system).
708 * The caller can set it (if necessary) after converting all the
712 bhdr->msg_flags = linux_to_bsd_msg_flags(lhdr->msg_flags);
717 bsd_to_linux_msghdr(const struct msghdr *bhdr, struct l_msghdr *lhdr)
719 lhdr->msg_name = PTROUT(bhdr->msg_name);
720 lhdr->msg_namelen = bhdr->msg_namelen;
721 lhdr->msg_iov = PTROUT(bhdr->msg_iov);
722 lhdr->msg_iovlen = bhdr->msg_iovlen;
723 lhdr->msg_control = PTROUT(bhdr->msg_control);
726 * msg_controllen is skipped since BSD and LINUX control messages
727 * are potentially different sizes (e.g. the cred structure used
728 * by SCM_CREDS is different between the two operating system).
730 * The caller can set it (if necessary) after converting all the
734 /* msg_flags skipped */
739 linux_set_socket_flags(int lflags, int *flags)
742 if (lflags & ~(LINUX_SOCK_CLOEXEC | LINUX_SOCK_NONBLOCK))
744 if (lflags & LINUX_SOCK_NONBLOCK)
745 *flags |= SOCK_NONBLOCK;
746 if (lflags & LINUX_SOCK_CLOEXEC)
747 *flags |= SOCK_CLOEXEC;
752 linux_copyout_sockaddr(const struct sockaddr *sa, void *uaddr, size_t len)
754 struct l_sockaddr *lsa;
757 error = bsd_to_linux_sockaddr(sa, &lsa, len);
761 error = copyout(lsa, uaddr, len);
768 linux_sendit(struct thread *td, int s, struct msghdr *mp, int flags,
769 struct mbuf *control, enum uio_seg segflg)
774 if (mp->msg_name != NULL) {
775 len = mp->msg_namelen;
776 error = linux_to_bsd_sockaddr(mp->msg_name, &to, &len);
783 error = kern_sendit(td, s, mp, linux_to_bsd_msg_flags(flags), control,
791 /* Return 0 if IP_HDRINCL is set for the given socket. */
793 linux_check_hdrincl(struct thread *td, int s)
798 size_val = sizeof(optval);
799 error = kern_getsockopt(td, s, IPPROTO_IP, IP_HDRINCL,
800 &optval, UIO_SYSSPACE, &size_val);
804 return (optval == 0);
808 * Updated sendto() when IP_HDRINCL is set:
809 * tweak endian-dependent fields in the IP packet.
812 linux_sendto_hdrincl(struct thread *td, struct linux_sendto_args *linux_args)
815 * linux_ip_copysize defines how many bytes we should copy
816 * from the beginning of the IP packet before we customize it for BSD.
817 * It should include all the fields we modify (ip_len and ip_off).
819 #define linux_ip_copysize 8
823 struct iovec aiov[1];
826 /* Check that the packet isn't too big or too small. */
827 if (linux_args->len < linux_ip_copysize ||
828 linux_args->len > IP_MAXPACKET)
831 packet = (struct ip *)malloc(linux_args->len, M_LINUX, M_WAITOK);
833 /* Make kernel copy of the packet to be sent */
834 if ((error = copyin(PTRIN(linux_args->msg), packet,
838 /* Convert fields from Linux to BSD raw IP socket format */
839 packet->ip_len = linux_args->len;
840 packet->ip_off = ntohs(packet->ip_off);
842 /* Prepare the msghdr and iovec structures describing the new packet */
843 msg.msg_name = PTRIN(linux_args->to);
844 msg.msg_namelen = linux_args->tolen;
847 msg.msg_control = NULL;
849 aiov[0].iov_base = (char *)packet;
850 aiov[0].iov_len = linux_args->len;
851 error = linux_sendit(td, linux_args->s, &msg, linux_args->flags,
854 free(packet, M_LINUX);
858 static const char *linux_netlink_names[] = {
859 [LINUX_NETLINK_ROUTE] = "ROUTE",
860 [LINUX_NETLINK_SOCK_DIAG] = "SOCK_DIAG",
861 [LINUX_NETLINK_NFLOG] = "NFLOG",
862 [LINUX_NETLINK_SELINUX] = "SELINUX",
863 [LINUX_NETLINK_AUDIT] = "AUDIT",
864 [LINUX_NETLINK_FIB_LOOKUP] = "FIB_LOOKUP",
865 [LINUX_NETLINK_NETFILTER] = "NETFILTER",
866 [LINUX_NETLINK_KOBJECT_UEVENT] = "KOBJECT_UEVENT",
870 linux_socket(struct thread *td, struct linux_socket_args *args)
872 int domain, retval_socket, type;
874 type = args->type & LINUX_SOCK_TYPE_MASK;
875 if (type < 0 || type > LINUX_SOCK_MAX)
877 retval_socket = linux_set_socket_flags(args->type & ~LINUX_SOCK_TYPE_MASK,
879 if (retval_socket != 0)
880 return (retval_socket);
881 domain = linux_to_bsd_domain(args->domain);
883 /* Mask off SOCK_NONBLOCK / CLOEXEC for error messages. */
884 type = args->type & LINUX_SOCK_TYPE_MASK;
885 if (args->domain == LINUX_AF_NETLINK &&
886 args->protocol == LINUX_NETLINK_AUDIT) {
887 ; /* Do nothing, quietly. */
888 } else if (args->domain == LINUX_AF_NETLINK) {
891 if (args->protocol >= 0 &&
892 args->protocol < nitems(linux_netlink_names))
893 nl_name = linux_netlink_names[args->protocol];
898 "unsupported socket(AF_NETLINK, %d, "
899 "NETLINK_%s)", type, nl_name);
902 "unsupported socket(AF_NETLINK, %d, %d)",
903 type, args->protocol);
905 linux_msg(curthread, "unsupported socket domain %d, "
906 "type %d, protocol %d", args->domain, type,
909 return (EAFNOSUPPORT);
912 retval_socket = kern_socket(td, domain, type, args->protocol);
914 return (retval_socket);
917 && (args->protocol == IPPROTO_RAW || args->protocol == 0)
918 && domain == PF_INET) {
919 /* It's a raw IP socket: set the IP_HDRINCL option. */
923 /* We ignore any error returned by kern_setsockopt() */
924 kern_setsockopt(td, td->td_retval[0], IPPROTO_IP, IP_HDRINCL,
925 &hdrincl, UIO_SYSSPACE, sizeof(hdrincl));
929 * Linux AF_INET6 socket has IPV6_V6ONLY setsockopt set to 0 by default
930 * and some apps depend on this. So, set V6ONLY to 0 for Linux apps.
931 * For simplicity we do this unconditionally of the net.inet6.ip6.v6only
934 if (domain == PF_INET6) {
938 /* We ignore any error returned by setsockopt() */
939 kern_setsockopt(td, td->td_retval[0], IPPROTO_IPV6, IPV6_V6ONLY,
940 &v6only, UIO_SYSSPACE, sizeof(v6only));
944 return (retval_socket);
948 linux_bind(struct thread *td, struct linux_bind_args *args)
953 error = linux_to_bsd_sockaddr(PTRIN(args->name), &sa,
958 error = kern_bindat(td, AT_FDCWD, args->s, sa);
962 if (error == EADDRNOTAVAIL && args->namelen != sizeof(struct sockaddr_in))
968 linux_connect(struct thread *td, struct linux_connect_args *args)
976 error = linux_to_bsd_sockaddr(PTRIN(args->name), &sa,
981 error = kern_connectat(td, AT_FDCWD, args->s, sa);
983 if (error != EISCONN)
987 * Linux doesn't return EISCONN the first time it occurs,
988 * when on a non-blocking socket. Instead it returns the
989 * error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
991 error = getsock_cap(td, args->s, &cap_connect_rights,
998 if (fflag & FNONBLOCK) {
1000 if (so->so_emuldata == 0)
1001 error = so->so_error;
1002 so->so_emuldata = (void *)1;
1011 linux_listen(struct thread *td, struct linux_listen_args *args)
1014 return (kern_listen(td, args->s, args->backlog));
1018 linux_accept_common(struct thread *td, int s, l_uintptr_t addr,
1019 l_uintptr_t namelen, int flags)
1021 struct sockaddr *sa;
1022 struct file *fp, *fp1;
1031 error = linux_set_socket_flags(flags, &bflags);
1035 if (PTRIN(addr) == NULL) {
1037 error = kern_accept4(td, s, NULL, NULL, bflags, NULL);
1039 error = copyin(PTRIN(namelen), &len, sizeof(len));
1044 error = kern_accept4(td, s, &sa, &len, bflags, &fp);
1048 * Translate errno values into ones used by Linux.
1052 * XXX. This is wrong, different sockaddr structures
1053 * have different sizes.
1057 if (namelen != sizeof(struct sockaddr_in))
1061 error1 = getsock_cap(td, s, &cap_accept_rights, &fp1, NULL, NULL);
1067 if (so->so_type == SOCK_DGRAM)
1076 error = linux_copyout_sockaddr(sa, PTRIN(addr), len);
1078 error = copyout(&len, PTRIN(namelen),
1081 fdclose(td, fp, td->td_retval[0]);
1082 td->td_retval[0] = 0;
1092 linux_accept(struct thread *td, struct linux_accept_args *args)
1095 return (linux_accept_common(td, args->s, args->addr,
1100 linux_accept4(struct thread *td, struct linux_accept4_args *args)
1103 return (linux_accept_common(td, args->s, args->addr,
1104 args->namelen, args->flags));
1108 linux_getsockname(struct thread *td, struct linux_getsockname_args *args)
1110 struct sockaddr *sa;
1113 error = copyin(PTRIN(args->namelen), &len, sizeof(len));
1117 error = kern_getsockname(td, args->s, &sa, &len);
1122 error = linux_copyout_sockaddr(sa, PTRIN(args->addr), len);
1126 error = copyout(&len, PTRIN(args->namelen), sizeof(len));
1131 linux_getpeername(struct thread *td, struct linux_getpeername_args *args)
1133 struct sockaddr *sa;
1136 error = copyin(PTRIN(args->namelen), &len, sizeof(len));
1142 error = kern_getpeername(td, args->s, &sa, &len);
1147 error = linux_copyout_sockaddr(sa, PTRIN(args->addr), len);
1151 error = copyout(&len, PTRIN(args->namelen), sizeof(len));
1156 linux_socketpair(struct thread *td, struct linux_socketpair_args *args)
1158 int domain, error, sv[2], type;
1160 domain = linux_to_bsd_domain(args->domain);
1161 if (domain != PF_LOCAL)
1162 return (EAFNOSUPPORT);
1163 type = args->type & LINUX_SOCK_TYPE_MASK;
1164 if (type < 0 || type > LINUX_SOCK_MAX)
1166 error = linux_set_socket_flags(args->type & ~LINUX_SOCK_TYPE_MASK,
1170 if (args->protocol != 0 && args->protocol != PF_UNIX) {
1172 * Use of PF_UNIX as protocol argument is not right,
1173 * but Linux does it.
1174 * Do not map PF_UNIX as its Linux value is identical
1177 return (EPROTONOSUPPORT);
1179 error = kern_socketpair(td, domain, type, 0, sv);
1182 error = copyout(sv, PTRIN(args->rsv), 2 * sizeof(int));
1184 (void)kern_close(td, sv[0]);
1185 (void)kern_close(td, sv[1]);
1190 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1191 struct linux_send_args {
1199 linux_send(struct thread *td, struct linux_send_args *args)
1201 struct sendto_args /* {
1212 bsd_args.s = args->s;
1213 bsd_args.buf = (caddr_t)PTRIN(args->msg);
1214 bsd_args.len = args->len;
1215 bsd_args.flags = linux_to_bsd_msg_flags(args->flags);
1218 error = sys_sendto(td, &bsd_args);
1219 if (error == ENOTCONN) {
1221 * Linux doesn't return ENOTCONN for non-blocking sockets.
1222 * Instead it returns the EAGAIN.
1224 error = getsock_cap(td, args->s, &cap_send_rights, &fp,
1227 if (fflag & FNONBLOCK)
1235 struct linux_recv_args {
1243 linux_recv(struct thread *td, struct linux_recv_args *args)
1245 struct recvfrom_args /* {
1250 struct sockaddr *from;
1251 socklen_t fromlenaddr;
1254 bsd_args.s = args->s;
1255 bsd_args.buf = (caddr_t)PTRIN(args->msg);
1256 bsd_args.len = args->len;
1257 bsd_args.flags = linux_to_bsd_msg_flags(args->flags);
1258 bsd_args.from = NULL;
1259 bsd_args.fromlenaddr = 0;
1260 return (sys_recvfrom(td, &bsd_args));
1262 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1265 linux_sendto(struct thread *td, struct linux_sendto_args *args)
1273 if (linux_check_hdrincl(td, args->s) == 0)
1274 /* IP_HDRINCL set, tweak the packet before sending */
1275 return (linux_sendto_hdrincl(td, args));
1277 bzero(&msg, sizeof(msg));
1278 error = getsock_cap(td, args->s, &cap_send_connect_rights,
1283 if ((so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING)) == 0) {
1284 msg.msg_name = PTRIN(args->to);
1285 msg.msg_namelen = args->tolen;
1287 msg.msg_iov = &aiov;
1289 aiov.iov_base = PTRIN(args->msg);
1290 aiov.iov_len = args->len;
1292 return (linux_sendit(td, args->s, &msg, args->flags, NULL,
1297 linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args)
1299 struct sockaddr *sa;
1304 if (PTRIN(args->fromlen) != NULL) {
1305 error = copyin(PTRIN(args->fromlen), &fromlen,
1311 fromlen = min(fromlen, SOCK_MAXADDRLEN);
1312 sa = malloc(fromlen, M_SONAME, M_WAITOK);
1319 msg.msg_namelen = fromlen;
1320 msg.msg_iov = &aiov;
1322 aiov.iov_base = PTRIN(args->buf);
1323 aiov.iov_len = args->len;
1324 msg.msg_control = 0;
1325 msg.msg_flags = linux_to_bsd_msg_flags(args->flags);
1327 error = kern_recvit(td, args->s, &msg, UIO_SYSSPACE, NULL);
1332 * XXX. Seems that FreeBSD is different from Linux here. Linux
1333 * fill source address if underlying protocol provides it, while
1334 * FreeBSD fill it if underlying protocol is not connection-oriented.
1335 * So, kern_recvit() set msg.msg_namelen to 0 if protocol pr_flags
1336 * does not contains PR_ADDR flag.
1338 if (PTRIN(args->from) != NULL && msg.msg_namelen != 0)
1339 error = linux_copyout_sockaddr(sa, PTRIN(args->from),
1342 if (error == 0 && PTRIN(args->fromlen) != NULL)
1343 error = copyout(&msg.msg_namelen, PTRIN(args->fromlen),
1344 sizeof(msg.msg_namelen));
1351 linux_sendmsg_common(struct thread *td, l_int s, struct l_msghdr *msghdr,
1354 struct cmsghdr *cmsg;
1355 struct mbuf *control;
1357 struct l_cmsghdr linux_cmsg;
1358 struct l_cmsghdr *ptr_cmsg;
1359 struct l_msghdr linux_msghdr;
1362 struct sockaddr *sa;
1364 sa_family_t sa_family;
1371 error = copyin(msghdr, &linux_msghdr, sizeof(linux_msghdr));
1376 * Some Linux applications (ping) define a non-NULL control data
1377 * pointer, but a msg_controllen of 0, which is not allowed in the
1378 * FreeBSD system call interface. NULL the msg_control pointer in
1379 * order to handle this case. This should be checked, but allows the
1380 * Linux ping to work.
1382 if (PTRIN(linux_msghdr.msg_control) != NULL &&
1383 linux_msghdr.msg_controllen == 0)
1384 linux_msghdr.msg_control = PTROUT(NULL);
1386 error = linux_to_bsd_msghdr(&msg, &linux_msghdr);
1390 #ifdef COMPAT_LINUX32
1391 error = linux32_copyiniov(PTRIN(msg.msg_iov), msg.msg_iovlen,
1394 error = copyiniov(msg.msg_iov, msg.msg_iovlen, &iov, EMSGSIZE);
1401 error = kern_getsockname(td, s, &sa, &datalen);
1404 sa_family = sa->sa_family;
1407 if (flags & LINUX_MSG_OOB) {
1409 if (sa_family == AF_UNIX)
1412 error = getsock_cap(td, s, &cap_send_rights, &fp,
1417 if (so->so_type != SOCK_STREAM)
1424 if (linux_msghdr.msg_controllen >= sizeof(struct l_cmsghdr)) {
1426 control = m_get(M_WAITOK, MT_CONTROL);
1427 MCLGET(control, M_WAITOK);
1428 data = mtod(control, void *);
1431 ptr_cmsg = PTRIN(linux_msghdr.msg_control);
1432 clen = linux_msghdr.msg_controllen;
1434 error = copyin(ptr_cmsg, &linux_cmsg,
1435 sizeof(struct l_cmsghdr));
1440 if (linux_cmsg.cmsg_len < sizeof(struct l_cmsghdr) ||
1441 linux_cmsg.cmsg_len > clen)
1444 if (datalen + CMSG_HDRSZ > MCLBYTES)
1448 * Now we support only SCM_RIGHTS and SCM_CRED,
1449 * so return EINVAL in any other cmsg_type
1453 linux_to_bsd_cmsg_type(linux_cmsg.cmsg_type);
1455 linux_to_bsd_sockopt_level(linux_cmsg.cmsg_level);
1456 if (cmsg->cmsg_type == -1
1457 || cmsg->cmsg_level != SOL_SOCKET) {
1458 linux_msg(curthread,
1459 "unsupported sendmsg cmsg level %d type %d",
1460 linux_cmsg.cmsg_level, linux_cmsg.cmsg_type);
1465 * Some applications (e.g. pulseaudio) attempt to
1466 * send ancillary data even if the underlying protocol
1467 * doesn't support it which is not allowed in the
1468 * FreeBSD system call interface.
1470 if (sa_family != AF_UNIX)
1473 if (cmsg->cmsg_type == SCM_CREDS) {
1474 len = sizeof(struct cmsgcred);
1475 if (datalen + CMSG_SPACE(len) > MCLBYTES)
1479 * The lower levels will fill in the structure
1481 memset(CMSG_DATA(data), 0, len);
1483 len = linux_cmsg.cmsg_len - L_CMSG_HDRSZ;
1484 if (datalen + CMSG_SPACE(len) < datalen ||
1485 datalen + CMSG_SPACE(len) > MCLBYTES)
1488 error = copyin(LINUX_CMSG_DATA(ptr_cmsg),
1489 CMSG_DATA(data), len);
1494 cmsg->cmsg_len = CMSG_LEN(len);
1495 data = (char *)data + CMSG_SPACE(len);
1496 datalen += CMSG_SPACE(len);
1499 if (clen <= LINUX_CMSG_ALIGN(linux_cmsg.cmsg_len))
1502 clen -= LINUX_CMSG_ALIGN(linux_cmsg.cmsg_len);
1503 ptr_cmsg = (struct l_cmsghdr *)((char *)ptr_cmsg +
1504 LINUX_CMSG_ALIGN(linux_cmsg.cmsg_len));
1505 } while(clen >= sizeof(struct l_cmsghdr));
1507 control->m_len = datalen;
1516 error = linux_sendit(td, s, &msg, flags, control, UIO_USERSPACE);
1526 linux_sendmsg(struct thread *td, struct linux_sendmsg_args *args)
1529 return (linux_sendmsg_common(td, args->s, PTRIN(args->msg),
1534 linux_sendmmsg(struct thread *td, struct linux_sendmmsg_args *args)
1536 struct l_mmsghdr *msg;
1538 int error, datagrams;
1540 if (args->vlen > UIO_MAXIOV)
1541 args->vlen = UIO_MAXIOV;
1543 msg = PTRIN(args->msg);
1545 while (datagrams < args->vlen) {
1546 error = linux_sendmsg_common(td, args->s, &msg->msg_hdr,
1551 retval = td->td_retval[0];
1552 error = copyout(&retval, &msg->msg_len, sizeof(msg->msg_len));
1559 td->td_retval[0] = datagrams;
1564 recvmsg_scm_rights(struct thread *td, l_uint flags, socklen_t *datalen,
1565 void **data, void **udata)
1567 int i, fd, fds, *fdp;
1569 if (flags & LINUX_MSG_CMSG_CLOEXEC) {
1570 fds = *datalen / sizeof(int);
1572 for (i = 0; i < fds; i++) {
1574 (void)kern_fcntl(td, fd, F_SETFD, FD_CLOEXEC);
1582 recvmsg_scm_creds(socklen_t *datalen, void **data, void **udata)
1584 struct cmsgcred *cmcred;
1588 lu.pid = cmcred->cmcred_pid;
1589 lu.uid = cmcred->cmcred_uid;
1590 lu.gid = cmcred->cmcred_gid;
1591 memmove(*data, &lu, sizeof(lu));
1592 *datalen = sizeof(lu);
1595 _Static_assert(sizeof(struct cmsgcred) >= sizeof(struct l_ucred),
1596 "scm_creds sizeof l_ucred");
1599 recvmsg_scm_creds2(socklen_t *datalen, void **data, void **udata)
1601 struct sockcred2 *scred;
1605 lu.pid = scred->sc_pid;
1606 lu.uid = scred->sc_uid;
1607 lu.gid = scred->sc_gid;
1608 memmove(*data, &lu, sizeof(lu));
1609 *datalen = sizeof(lu);
1612 _Static_assert(sizeof(struct sockcred2) >= sizeof(struct l_ucred),
1613 "scm_creds2 sizeof l_ucred");
1615 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1617 recvmsg_scm_timestamp(l_int msg_type, socklen_t *datalen, void **data,
1620 l_sock_timeval ltv64;
1626 if (*datalen != sizeof(struct timeval))
1630 #if defined(COMPAT_LINUX32)
1631 if (msg_type == LINUX_SCM_TIMESTAMPO &&
1632 (tv->tv_sec > INT_MAX || tv->tv_sec < INT_MIN))
1635 if (msg_type == LINUX_SCM_TIMESTAMPN)
1636 len = sizeof(ltv64);
1640 buf = malloc(len, M_LINUX, M_WAITOK);
1641 if (msg_type == LINUX_SCM_TIMESTAMPN) {
1642 ltv64.tv_sec = tv->tv_sec;
1643 ltv64.tv_usec = tv->tv_usec;
1644 memmove(buf, <v64, len);
1646 ltv.tv_sec = tv->tv_sec;
1647 ltv.tv_usec = tv->tv_usec;
1648 memmove(buf, <v, len);
1650 *data = *udata = buf;
1655 _Static_assert(sizeof(struct timeval) == sizeof(l_timeval),
1656 "scm_timestamp sizeof l_timeval");
1657 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1659 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1661 recvmsg_scm_timestampns(l_int msg_type, socklen_t *datalen, void **data,
1664 struct l_timespec64 ts64;
1665 struct l_timespec ts32;
1670 if (msg_type == LINUX_SCM_TIMESTAMPNSO)
1675 buf = malloc(len, M_LINUX, M_WAITOK);
1676 bintime2timespec(*data, &ts);
1677 if (msg_type == LINUX_SCM_TIMESTAMPNSO) {
1678 ts32.tv_sec = ts.tv_sec;
1679 ts32.tv_nsec = ts.tv_nsec;
1680 memmove(buf, &ts32, len);
1682 ts64.tv_sec = ts.tv_sec;
1683 ts64.tv_nsec = ts.tv_nsec;
1684 memmove(buf, &ts64, len);
1686 *data = *udata = buf;
1692 recvmsg_scm_timestampns(l_int msg_type, socklen_t *datalen, void **data,
1697 bintime2timespec(*data, &ts);
1698 memmove(*data, &ts, sizeof(struct timespec));
1699 *datalen = sizeof(struct timespec);
1702 _Static_assert(sizeof(struct bintime) >= sizeof(struct timespec),
1703 "scm_timestampns sizeof timespec");
1704 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1707 recvmsg_scm_ip_origdstaddr(socklen_t *datalen, void **data, void **udata)
1709 struct l_sockaddr *lsa;
1712 error = bsd_to_linux_sockaddr(*data, &lsa, *datalen);
1714 *data = *udata = lsa;
1715 *datalen = sizeof(*lsa);
1721 linux_recvmsg_common(struct thread *td, l_int s, struct l_msghdr *msghdr,
1722 l_uint flags, struct msghdr *msg)
1724 struct proc *p = td->td_proc;
1726 struct l_cmsghdr *lcm = NULL;
1727 socklen_t datalen, maxlen, outlen;
1728 struct l_msghdr l_msghdr;
1729 struct iovec *iov, *uiov;
1730 struct mbuf *control = NULL;
1731 struct mbuf **controlp;
1732 struct sockaddr *sa;
1737 error = copyin(msghdr, &l_msghdr, sizeof(l_msghdr));
1742 * Pass user-supplied recvmsg() flags in msg_flags field,
1743 * following sys_recvmsg() convention.
1745 l_msghdr.msg_flags = flags;
1747 error = linux_to_bsd_msghdr(msg, &l_msghdr);
1751 #ifdef COMPAT_LINUX32
1752 error = linux32_copyiniov(PTRIN(msg->msg_iov), msg->msg_iovlen,
1755 error = copyiniov(msg->msg_iov, msg->msg_iovlen, &iov, EMSGSIZE);
1760 if (msg->msg_name != NULL && msg->msg_namelen > 0) {
1761 msg->msg_namelen = min(msg->msg_namelen, SOCK_MAXADDRLEN);
1762 sa = malloc(msg->msg_namelen, M_SONAME, M_WAITOK);
1766 msg->msg_name = NULL;
1769 uiov = msg->msg_iov;
1771 controlp = (msg->msg_control != NULL) ? &control : NULL;
1772 error = kern_recvit(td, s, msg, UIO_SYSSPACE, controlp);
1773 msg->msg_iov = uiov;
1778 * Note that kern_recvit() updates msg->msg_namelen.
1780 if (msg->msg_name != NULL && msg->msg_namelen > 0) {
1781 msg->msg_name = PTRIN(l_msghdr.msg_name);
1782 error = linux_copyout_sockaddr(sa, msg->msg_name,
1788 error = bsd_to_linux_msghdr(msg, &l_msghdr);
1792 maxlen = l_msghdr.msg_controllen;
1793 l_msghdr.msg_controllen = 0;
1794 if (control == NULL)
1797 lcm = malloc(L_CMSG_HDRSZ, M_LINUX, M_WAITOK | M_ZERO);
1798 msg->msg_control = mtod(control, struct cmsghdr *);
1799 msg->msg_controllen = control->m_len;
1800 cm = CMSG_FIRSTHDR(msg);
1801 outbuf = PTRIN(l_msghdr.msg_control);
1803 while (cm != NULL) {
1804 lcm->cmsg_type = bsd_to_linux_cmsg_type(p, cm->cmsg_type,
1806 lcm->cmsg_level = bsd_to_linux_sockopt_level(cm->cmsg_level);
1808 data = CMSG_DATA(cm);
1809 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1813 /* Process non SOL_SOCKET types. */
1814 if (cm->cmsg_level == IPPROTO_IP &&
1815 lcm->cmsg_type == LINUX_IP_ORIGDSTADDR) {
1816 error = recvmsg_scm_ip_origdstaddr(&datalen, &data, &udata);
1820 if (lcm->cmsg_type == -1 ||
1821 cm->cmsg_level != SOL_SOCKET) {
1822 linux_msg(curthread,
1823 "unsupported recvmsg cmsg level %d type %d",
1824 cm->cmsg_level, cm->cmsg_type);
1830 switch (cm->cmsg_type) {
1832 error = recvmsg_scm_rights(td, flags,
1833 &datalen, &data, &udata);
1836 error = recvmsg_scm_creds(&datalen,
1840 error = recvmsg_scm_creds2(&datalen,
1844 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1845 error = recvmsg_scm_timestamp(lcm->cmsg_type,
1846 &datalen, &data, &udata);
1850 error = recvmsg_scm_timestampns(lcm->cmsg_type,
1851 &datalen, &data, &udata);
1859 if (outlen + LINUX_CMSG_LEN(datalen) > maxlen) {
1864 l_msghdr.msg_flags |= LINUX_MSG_CTRUNC;
1865 m_dispose_extcontrolm(control);
1866 free(udata, M_LINUX);
1871 lcm->cmsg_len = LINUX_CMSG_LEN(datalen);
1872 error = copyout(lcm, outbuf, L_CMSG_HDRSZ);
1874 outbuf += L_CMSG_HDRSZ;
1875 error = copyout(data, outbuf, datalen);
1877 outbuf += LINUX_CMSG_ALIGN(datalen);
1878 outlen += LINUX_CMSG_LEN(datalen);
1879 cm = CMSG_NXTHDR(msg, cm);
1883 free(udata, M_LINUX);
1887 l_msghdr.msg_controllen = outlen;
1890 error = copyout(&l_msghdr, msghdr, sizeof(l_msghdr));
1893 if (control != NULL) {
1895 m_dispose_extcontrolm(control);
1906 linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args)
1908 struct msghdr bsd_msg;
1912 error = getsock_cap(td, args->s, &cap_recv_rights,
1917 return (linux_recvmsg_common(td, args->s, PTRIN(args->msg),
1918 args->flags, &bsd_msg));
1922 linux_recvmmsg_common(struct thread *td, l_int s, struct l_mmsghdr *msg,
1923 l_uint vlen, l_uint flags, struct timespec *tts)
1925 struct msghdr bsd_msg;
1929 int error, datagrams;
1931 error = getsock_cap(td, s, &cap_recv_rights,
1936 while (datagrams < vlen) {
1937 error = linux_recvmsg_common(td, s, &msg->msg_hdr,
1938 flags & ~LINUX_MSG_WAITFORONE, &bsd_msg);
1942 retval = td->td_retval[0];
1943 error = copyout(&retval, &msg->msg_len, sizeof(msg->msg_len));
1950 * MSG_WAITFORONE turns on MSG_DONTWAIT after one packet.
1952 if (flags & LINUX_MSG_WAITFORONE)
1953 flags |= LINUX_MSG_DONTWAIT;
1956 * See BUGS section of recvmmsg(2).
1960 timespecsub(&ts, tts, &ts);
1961 if (!timespecisset(&ts) || ts.tv_sec > 0)
1964 /* Out of band data, return right away. */
1965 if (bsd_msg.msg_flags & MSG_OOB)
1969 td->td_retval[0] = datagrams;
1975 linux_recvmmsg(struct thread *td, struct linux_recvmmsg_args *args)
1977 struct timespec ts, tts, *ptts;
1980 if (args->timeout) {
1981 error = linux_get_timespec(&ts, args->timeout);
1985 timespecadd(&tts, &ts, &tts);
1990 return (linux_recvmmsg_common(td, args->s, PTRIN(args->msg),
1991 args->vlen, args->flags, ptts));
1994 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1996 linux_recvmmsg_time64(struct thread *td, struct linux_recvmmsg_time64_args *args)
1998 struct timespec ts, tts, *ptts;
2001 if (args->timeout) {
2002 error = linux_get_timespec64(&ts, args->timeout);
2006 timespecadd(&tts, &ts, &tts);
2011 return (linux_recvmmsg_common(td, args->s, PTRIN(args->msg),
2012 args->vlen, args->flags, ptts));
2017 linux_shutdown(struct thread *td, struct linux_shutdown_args *args)
2020 return (kern_shutdown(td, args->s, args->how));
2024 linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
2026 struct proc *p = td->td_proc;
2027 struct linux_pemuldata *pem;
2029 struct sockaddr *sa;
2032 int error, level, name, val;
2034 level = linux_to_bsd_sockopt_level(args->level);
2037 name = linux_to_bsd_so_sockopt(args->optname);
2039 case LOCAL_CREDS_PERSISTENT:
2045 error = copyin(PTRIN(args->optval), &linux_tv,
2049 tv.tv_sec = linux_tv.tv_sec;
2050 tv.tv_usec = linux_tv.tv_usec;
2051 return (kern_setsockopt(td, args->s, level,
2052 name, &tv, UIO_SYSSPACE, sizeof(tv)));
2055 /* overwrite SO_BINTIME */
2057 error = kern_setsockopt(td, args->s, level,
2058 SO_BINTIME, &val, UIO_SYSSPACE, sizeof(val));
2062 pem->so_timestamp = args->optname;
2065 /* overwrite SO_TIMESTAMP */
2067 error = kern_setsockopt(td, args->s, level,
2068 SO_TIMESTAMP, &val, UIO_SYSSPACE, sizeof(val));
2072 pem->so_timestampns = args->optname;
2079 if (args->optname == LINUX_IP_RECVERR &&
2080 linux_ignore_ip_recverr) {
2082 * XXX: This is a hack to unbreak DNS resolution
2083 * with glibc 2.30 and above.
2087 name = linux_to_bsd_ip_sockopt(args->optname);
2090 name = linux_to_bsd_ip6_sockopt(args->optname);
2093 name = linux_to_bsd_tcp_sockopt(args->optname);
2101 linux_msg(curthread,
2102 "unsupported setsockopt level %d optname %d",
2103 args->level, args->optname);
2104 return (ENOPROTOOPT);
2107 if (name == IPV6_NEXTHOP) {
2109 error = linux_to_bsd_sockaddr(PTRIN(args->optval), &sa, &len);
2113 error = kern_setsockopt(td, args->s, level,
2114 name, sa, UIO_SYSSPACE, len);
2117 error = kern_setsockopt(td, args->s, level,
2118 name, PTRIN(args->optval), UIO_USERSPACE, args->optlen);
2125 linux_sockopt_copyout(struct thread *td, void *val, socklen_t len,
2126 struct linux_getsockopt_args *args)
2130 error = copyout(val, PTRIN(args->optval), len);
2132 error = copyout(&len, PTRIN(args->optlen), sizeof(len));
2137 linux_getsockopt_so_peergroups(struct thread *td,
2138 struct linux_getsockopt_args *args)
2141 socklen_t xulen, len;
2145 error = kern_getsockopt(td, args->s, 0,
2146 LOCAL_PEERCRED, &xu, UIO_SYSSPACE, &xulen);
2150 len = xu.cr_ngroups * sizeof(l_gid_t);
2151 if (args->optlen < len) {
2152 error = copyout(&len, PTRIN(args->optlen), sizeof(len));
2159 * "- 1" to skip the primary group.
2161 for (i = 0; i < xu.cr_ngroups - 1; i++) {
2162 error = copyout(xu.cr_groups + i + 1,
2163 (void *)(args->optval + i * sizeof(l_gid_t)),
2169 error = copyout(&len, PTRIN(args->optlen), sizeof(len));
2174 linux_getsockopt_so_peersec(struct thread *td,
2175 struct linux_getsockopt_args *args)
2180 len = sizeof(SECURITY_CONTEXT_STRING);
2181 if (args->optlen < len) {
2182 error = copyout(&len, PTRIN(args->optlen), sizeof(len));
2188 return (linux_sockopt_copyout(td, SECURITY_CONTEXT_STRING,
2193 linux_getsockopt_so_linger(struct thread *td,
2194 struct linux_getsockopt_args *args)
2201 error = kern_getsockopt(td, args->s, SOL_SOCKET,
2202 SO_LINGER, &ling, UIO_SYSSPACE, &len);
2205 ling.l_onoff = ((ling.l_onoff & SO_LINGER) != 0);
2206 return (linux_sockopt_copyout(td, &ling, len, args));
2210 linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
2214 socklen_t tv_len, xulen, len;
2215 struct sockaddr *sa;
2218 int error, level, name, newval;
2220 level = linux_to_bsd_sockopt_level(args->level);
2223 switch (args->optname) {
2224 case LINUX_SO_PEERGROUPS:
2225 return (linux_getsockopt_so_peergroups(td, args));
2226 case LINUX_SO_PEERSEC:
2227 return (linux_getsockopt_so_peersec(td, args));
2232 name = linux_to_bsd_so_sockopt(args->optname);
2234 case LOCAL_CREDS_PERSISTENT:
2240 tv_len = sizeof(tv);
2241 error = kern_getsockopt(td, args->s, level,
2242 name, &tv, UIO_SYSSPACE, &tv_len);
2245 linux_tv.tv_sec = tv.tv_sec;
2246 linux_tv.tv_usec = tv.tv_usec;
2247 return (linux_sockopt_copyout(td, &linux_tv,
2248 sizeof(linux_tv), args));
2250 case LOCAL_PEERCRED:
2251 if (args->optlen < sizeof(lxu))
2254 * LOCAL_PEERCRED is not served at the SOL_SOCKET level,
2255 * but by the Unix socket's level 0.
2259 error = kern_getsockopt(td, args->s, level,
2260 name, &xu, UIO_SYSSPACE, &xulen);
2263 lxu.pid = xu.cr_pid;
2264 lxu.uid = xu.cr_uid;
2265 lxu.gid = xu.cr_gid;
2266 return (linux_sockopt_copyout(td, &lxu,
2267 sizeof(lxu), args));
2270 len = sizeof(newval);
2271 error = kern_getsockopt(td, args->s, level,
2272 name, &newval, UIO_SYSSPACE, &len);
2275 newval = -bsd_to_linux_errno(newval);
2276 return (linux_sockopt_copyout(td, &newval,
2280 len = sizeof(newval);
2281 error = kern_getsockopt(td, args->s, level,
2282 name, &newval, UIO_SYSSPACE, &len);
2285 newval = bsd_to_linux_domain(newval);
2287 return (ENOPROTOOPT);
2288 return (linux_sockopt_copyout(td, &newval,
2292 return (linux_getsockopt_so_linger(td, args));
2299 name = linux_to_bsd_ip_sockopt(args->optname);
2302 name = linux_to_bsd_ip6_sockopt(args->optname);
2305 name = linux_to_bsd_tcp_sockopt(args->optname);
2313 linux_msg(curthread,
2314 "unsupported getsockopt level %d optname %d",
2315 args->level, args->optname);
2319 if (name == IPV6_NEXTHOP) {
2320 error = copyin(PTRIN(args->optlen), &len, sizeof(len));
2323 sa = malloc(len, M_SONAME, M_WAITOK);
2325 error = kern_getsockopt(td, args->s, level,
2326 name, sa, UIO_SYSSPACE, &len);
2330 error = linux_copyout_sockaddr(sa, PTRIN(args->optval), len);
2332 error = copyout(&len, PTRIN(args->optlen),
2338 error = copyin(PTRIN(args->optlen), &len, sizeof(len));
2342 error = kern_getsockopt(td, args->s, level,
2343 name, PTRIN(args->optval), UIO_USERSPACE, &len);
2345 error = copyout(&len, PTRIN(args->optlen),
2353 linux_sendfile_common(struct thread *td, l_int out, l_int in,
2354 l_loff_t *offset, l_size_t count)
2358 l_loff_t current_offset;
2362 error = fget_read(td, in, &cap_pread_rights, &fp);
2366 if (offset != NULL) {
2367 current_offset = *offset;
2369 error = (fp->f_ops->fo_flags & DFLAG_SEEKABLE) != 0 ?
2370 fo_seek(fp, 0, SEEK_CUR, td) : ESPIPE;
2373 current_offset = td->td_uretoff.tdu_off;
2378 /* Linux cannot have 0 count. */
2379 if (count <= 0 || current_offset < 0) {
2384 error = fo_sendfile(fp, out, NULL, NULL, current_offset, count,
2385 &bytes_read, 0, td);
2388 current_offset += bytes_read;
2390 if (offset != NULL) {
2391 *offset = current_offset;
2393 error = fo_seek(fp, current_offset, SEEK_SET, td);
2398 td->td_retval[0] = (ssize_t)bytes_read;
2401 if (error == ENOTSOCK)
2407 linux_sendfile(struct thread *td, struct linux_sendfile_args *arg)
2410 * Differences between FreeBSD and Linux sendfile:
2411 * - Linux doesn't send anything when count is 0 (FreeBSD uses 0 to
2412 * mean send the whole file.) In linux_sendfile given fds are still
2413 * checked for validity when the count is 0.
2414 * - Linux can send to any fd whereas FreeBSD only supports sockets.
2415 * The same restriction follows for linux_sendfile.
2416 * - Linux doesn't have an equivalent for FreeBSD's flags and sf_hdtr.
2417 * - Linux takes an offset pointer and updates it to the read location.
2418 * FreeBSD takes in an offset and a 'bytes read' parameter which is
2419 * only filled if it isn't NULL. We use this parameter to update the
2420 * offset pointer if it exists.
2421 * - Linux sendfile returns bytes read on success while FreeBSD
2422 * returns 0. We use the 'bytes read' parameter to get this value.
2430 if (arg->offset != NULL) {
2431 error = copyin(arg->offset, &offset, sizeof(offset));
2434 offset64 = (l_loff_t)offset;
2437 ret = linux_sendfile_common(td, arg->out, arg->in,
2438 arg->offset != NULL ? &offset64 : NULL, arg->count);
2440 if (arg->offset != NULL) {
2441 #if defined(__i386__) || defined(__arm__) || \
2442 (defined(__amd64__) && defined(COMPAT_LINUX32))
2443 if (offset64 > INT32_MAX)
2446 offset = (l_long)offset64;
2447 error = copyout(&offset, arg->offset, sizeof(offset));
2455 #if defined(__i386__) || defined(__arm__) || \
2456 (defined(__amd64__) && defined(COMPAT_LINUX32))
2459 linux_sendfile64(struct thread *td, struct linux_sendfile64_args *arg)
2465 if (arg->offset != NULL) {
2466 error = copyin(arg->offset, &offset, sizeof(offset));
2471 ret = linux_sendfile_common(td, arg->out, arg->in,
2472 arg->offset != NULL ? &offset : NULL, arg->count);
2474 if (arg->offset != NULL) {
2475 error = copyout(&offset, arg->offset, sizeof(offset));
2483 /* Argument list sizes for linux_socketcall */
2484 static const unsigned char lxs_args_cnt[] = {
2485 0 /* unused*/, 3 /* socket */,
2486 3 /* bind */, 3 /* connect */,
2487 2 /* listen */, 3 /* accept */,
2488 3 /* getsockname */, 3 /* getpeername */,
2489 4 /* socketpair */, 4 /* send */,
2490 4 /* recv */, 6 /* sendto */,
2491 6 /* recvfrom */, 2 /* shutdown */,
2492 5 /* setsockopt */, 5 /* getsockopt */,
2493 3 /* sendmsg */, 3 /* recvmsg */,
2494 4 /* accept4 */, 5 /* recvmmsg */,
2495 4 /* sendmmsg */, 4 /* sendfile */
2497 #define LINUX_ARGS_CNT (nitems(lxs_args_cnt) - 1)
2498 #define LINUX_ARG_SIZE(x) (lxs_args_cnt[x] * sizeof(l_ulong))
2501 linux_socketcall(struct thread *td, struct linux_socketcall_args *args)
2504 #if defined(__amd64__) && defined(COMPAT_LINUX32)
2505 register_t l_args[6];
2510 if (args->what < LINUX_SOCKET || args->what > LINUX_ARGS_CNT)
2512 error = copyin(PTRIN(args->args), a, LINUX_ARG_SIZE(args->what));
2516 #if defined(__amd64__) && defined(COMPAT_LINUX32)
2517 for (int i = 0; i < lxs_args_cnt[args->what]; ++i)
2523 switch (args->what) {
2525 return (linux_socket(td, arg));
2527 return (linux_bind(td, arg));
2529 return (linux_connect(td, arg));
2531 return (linux_listen(td, arg));
2533 return (linux_accept(td, arg));
2534 case LINUX_GETSOCKNAME:
2535 return (linux_getsockname(td, arg));
2536 case LINUX_GETPEERNAME:
2537 return (linux_getpeername(td, arg));
2538 case LINUX_SOCKETPAIR:
2539 return (linux_socketpair(td, arg));
2541 return (linux_send(td, arg));
2543 return (linux_recv(td, arg));
2545 return (linux_sendto(td, arg));
2546 case LINUX_RECVFROM:
2547 return (linux_recvfrom(td, arg));
2548 case LINUX_SHUTDOWN:
2549 return (linux_shutdown(td, arg));
2550 case LINUX_SETSOCKOPT:
2551 return (linux_setsockopt(td, arg));
2552 case LINUX_GETSOCKOPT:
2553 return (linux_getsockopt(td, arg));
2555 return (linux_sendmsg(td, arg));
2557 return (linux_recvmsg(td, arg));
2559 return (linux_accept4(td, arg));
2560 case LINUX_RECVMMSG:
2561 return (linux_recvmmsg(td, arg));
2562 case LINUX_SENDMMSG:
2563 return (linux_sendmmsg(td, arg));
2564 case LINUX_SENDFILE:
2565 return (linux_sendfile(td, arg));
2568 linux_msg(td, "socket type %d not implemented", args->what);
2571 #endif /* __i386__ || __arm__ || (__amd64__ && COMPAT_LINUX32) */