2 * Copyright (c) 1995 Søren Schmidt
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/fcntl.h>
42 #include <sys/limits.h>
44 #include <sys/malloc.h>
45 #include <sys/mutex.h>
47 #include <sys/socket.h>
48 #include <sys/socketvar.h>
49 #include <sys/syscallsubr.h>
51 #include <sys/syslog.h>
55 #include <netinet/in.h>
56 #include <netinet/in_systm.h>
57 #include <netinet/ip.h>
59 #include <netinet/ip6.h>
60 #include <netinet6/ip6_var.h>
61 #include <netinet6/in6_var.h>
65 #include <machine/../linux32/linux.h>
66 #include <machine/../linux32/linux32_proto.h>
68 #include <machine/../linux/linux.h>
69 #include <machine/../linux/linux_proto.h>
71 #include <compat/linux/linux_socket.h>
72 #include <compat/linux/linux_util.h>
74 static int do_sa_get(struct sockaddr **, const struct osockaddr *, int *,
75 struct malloc_type *);
76 static int linux_to_bsd_domain(int);
79 * Reads a linux sockaddr and does any necessary translation.
80 * Linux sockaddrs don't have a length field, only a family.
83 linux_getsockaddr(struct sockaddr **sap, const struct osockaddr *osa, int len)
87 return (do_sa_get(sap, osa, &osalen, M_SONAME));
91 * Copy the osockaddr structure pointed to by osa to kernel, adjust
92 * family and convert to sockaddr.
95 do_sa_get(struct sockaddr **sap, const struct osockaddr *osa, int *osalen,
96 struct malloc_type *mtype)
100 struct osockaddr *kosa;
104 struct sockaddr_in6 *sin6;
107 if (*osalen < 2 || *osalen > UCHAR_MAX || !osa)
114 * Check for old (pre-RFC2553) sockaddr_in6. We may accept it
115 * if it's a v4-mapped address, so reserve the proper space
118 if (alloclen == sizeof (struct sockaddr_in6) - sizeof (u_int32_t)) {
119 alloclen = sizeof (struct sockaddr_in6);
124 kosa = malloc(alloclen, mtype, M_WAITOK);
126 if ((error = copyin(osa, kosa, *osalen)))
129 bdom = linux_to_bsd_domain(kosa->sa_family);
131 error = EAFNOSUPPORT;
137 * Older Linux IPv6 code uses obsolete RFC2133 struct sockaddr_in6,
138 * which lacks the scope id compared with RFC2553 one. If we detect
139 * the situation, reject the address and write a message to system log.
141 * Still accept addresses for which the scope id is not used.
143 if (oldv6size && bdom == AF_INET6) {
144 sin6 = (struct sockaddr_in6 *)kosa;
145 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) ||
146 (!IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) &&
147 !IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr) &&
148 !IN6_IS_ADDR_V4COMPAT(&sin6->sin6_addr) &&
149 !IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
150 !IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))) {
151 sin6->sin6_scope_id = 0;
154 "obsolete pre-RFC2553 sockaddr_in6 rejected\n");
160 if (bdom == AF_INET) {
161 alloclen = sizeof(struct sockaddr_in);
162 if (*osalen < alloclen) {
168 sa = (struct sockaddr *) kosa;
169 sa->sa_family = bdom;
170 sa->sa_len = alloclen;
182 linux_to_bsd_domain(int domain)
186 case LINUX_AF_UNSPEC:
198 case LINUX_AF_APPLETALK:
199 return (AF_APPLETALK);
205 bsd_to_linux_domain(int domain)
210 return (LINUX_AF_UNSPEC);
212 return (LINUX_AF_UNIX);
214 return (LINUX_AF_INET);
216 return (LINUX_AF_INET6);
218 return (LINUX_AF_AX25);
220 return (LINUX_AF_IPX);
222 return (LINUX_AF_APPLETALK);
228 linux_to_bsd_sockopt_level(int level)
232 case LINUX_SOL_SOCKET:
239 bsd_to_linux_sockopt_level(int level)
244 return (LINUX_SOL_SOCKET);
250 linux_to_bsd_ip_sockopt(int opt)
258 case LINUX_IP_OPTIONS:
260 case LINUX_IP_MULTICAST_IF:
261 return (IP_MULTICAST_IF);
262 case LINUX_IP_MULTICAST_TTL:
263 return (IP_MULTICAST_TTL);
264 case LINUX_IP_MULTICAST_LOOP:
265 return (IP_MULTICAST_LOOP);
266 case LINUX_IP_ADD_MEMBERSHIP:
267 return (IP_ADD_MEMBERSHIP);
268 case LINUX_IP_DROP_MEMBERSHIP:
269 return (IP_DROP_MEMBERSHIP);
270 case LINUX_IP_HDRINCL:
277 linux_to_bsd_so_sockopt(int opt)
283 case LINUX_SO_REUSEADDR:
284 return (SO_REUSEADDR);
289 case LINUX_SO_DONTROUTE:
290 return (SO_DONTROUTE);
291 case LINUX_SO_BROADCAST:
292 return (SO_BROADCAST);
293 case LINUX_SO_SNDBUF:
295 case LINUX_SO_RCVBUF:
297 case LINUX_SO_KEEPALIVE:
298 return (SO_KEEPALIVE);
299 case LINUX_SO_OOBINLINE:
300 return (SO_OOBINLINE);
301 case LINUX_SO_LINGER:
303 case LINUX_SO_PEERCRED:
304 return (LOCAL_PEERCRED);
305 case LINUX_SO_RCVLOWAT:
306 return (SO_RCVLOWAT);
307 case LINUX_SO_SNDLOWAT:
308 return (SO_SNDLOWAT);
309 case LINUX_SO_RCVTIMEO:
310 return (SO_RCVTIMEO);
311 case LINUX_SO_SNDTIMEO:
312 return (SO_SNDTIMEO);
313 case LINUX_SO_TIMESTAMP:
314 return (SO_TIMESTAMP);
315 case LINUX_SO_ACCEPTCONN:
316 return (SO_ACCEPTCONN);
322 linux_to_bsd_msg_flags(int flags)
326 if (flags & LINUX_MSG_OOB)
327 ret_flags |= MSG_OOB;
328 if (flags & LINUX_MSG_PEEK)
329 ret_flags |= MSG_PEEK;
330 if (flags & LINUX_MSG_DONTROUTE)
331 ret_flags |= MSG_DONTROUTE;
332 if (flags & LINUX_MSG_CTRUNC)
333 ret_flags |= MSG_CTRUNC;
334 if (flags & LINUX_MSG_TRUNC)
335 ret_flags |= MSG_TRUNC;
336 if (flags & LINUX_MSG_DONTWAIT)
337 ret_flags |= MSG_DONTWAIT;
338 if (flags & LINUX_MSG_EOR)
339 ret_flags |= MSG_EOR;
340 if (flags & LINUX_MSG_WAITALL)
341 ret_flags |= MSG_WAITALL;
342 if (flags & LINUX_MSG_NOSIGNAL)
343 ret_flags |= MSG_NOSIGNAL;
344 #if 0 /* not handled */
345 if (flags & LINUX_MSG_PROXY)
347 if (flags & LINUX_MSG_FIN)
349 if (flags & LINUX_MSG_SYN)
351 if (flags & LINUX_MSG_CONFIRM)
353 if (flags & LINUX_MSG_RST)
355 if (flags & LINUX_MSG_ERRQUEUE)
362 * If bsd_to_linux_sockaddr() or linux_to_bsd_sockaddr() faults, then the
363 * native syscall will fault. Thus, we don't really need to check the
364 * return values for these functions.
368 bsd_to_linux_sockaddr(struct sockaddr *arg)
371 size_t sa_len = sizeof(struct sockaddr);
374 if ((error = copyin(arg, &sa, sa_len)))
377 *(u_short *)&sa = sa.sa_family;
379 error = copyout(&sa, arg, sa_len);
385 linux_to_bsd_sockaddr(struct sockaddr *arg, int len)
388 size_t sa_len = sizeof(struct sockaddr);
391 if ((error = copyin(arg, &sa, sa_len)))
394 sa.sa_family = *(sa_family_t *)&sa;
397 error = copyout(&sa, arg, sa_len);
404 linux_sa_put(struct osockaddr *osa)
410 * Only read/write the osockaddr family part, the rest is
413 error = copyin(osa, &sa, sizeof(sa.sa_family));
417 bdom = bsd_to_linux_domain(sa.sa_family);
422 error = copyout(&sa, osa, sizeof(sa.sa_family));
430 linux_to_bsd_cmsg_type(int cmsg_type)
434 case LINUX_SCM_RIGHTS:
441 bsd_to_linux_cmsg_type(int cmsg_type)
446 return (LINUX_SCM_RIGHTS);
452 linux_to_bsd_msghdr(struct msghdr *bhdr, const struct l_msghdr *lhdr)
454 if (lhdr->msg_controllen > INT_MAX)
457 bhdr->msg_name = PTRIN(lhdr->msg_name);
458 bhdr->msg_namelen = lhdr->msg_namelen;
459 bhdr->msg_iov = PTRIN(lhdr->msg_iov);
460 bhdr->msg_iovlen = lhdr->msg_iovlen;
461 bhdr->msg_control = PTRIN(lhdr->msg_control);
462 bhdr->msg_controllen = lhdr->msg_controllen;
463 bhdr->msg_flags = linux_to_bsd_msg_flags(lhdr->msg_flags);
468 bsd_to_linux_msghdr(const struct msghdr *bhdr, struct l_msghdr *lhdr)
470 lhdr->msg_name = PTROUT(bhdr->msg_name);
471 lhdr->msg_namelen = bhdr->msg_namelen;
472 lhdr->msg_iov = PTROUT(bhdr->msg_iov);
473 lhdr->msg_iovlen = bhdr->msg_iovlen;
474 lhdr->msg_control = PTROUT(bhdr->msg_control);
475 lhdr->msg_controllen = bhdr->msg_controllen;
476 /* msg_flags skipped */
481 linux_set_socket_flags(struct thread *td, int s, int flags)
485 if (flags & LINUX_SOCK_NONBLOCK) {
486 error = kern_fcntl(td, s, F_SETFL, O_NONBLOCK);
490 if (flags & LINUX_SOCK_CLOEXEC) {
491 error = kern_fcntl(td, s, F_SETFD, FD_CLOEXEC);
499 linux_sendit(struct thread *td, int s, struct msghdr *mp, int flags,
500 struct mbuf *control, enum uio_seg segflg)
505 if (mp->msg_name != NULL) {
506 error = linux_getsockaddr(&to, mp->msg_name, mp->msg_namelen);
513 error = kern_sendit(td, s, mp, linux_to_bsd_msg_flags(flags), control,
521 /* Return 0 if IP_HDRINCL is set for the given socket. */
523 linux_check_hdrincl(struct thread *td, int s)
525 int error, optval, size_val;
527 size_val = sizeof(optval);
528 error = kern_getsockopt(td, s, IPPROTO_IP, IP_HDRINCL,
529 &optval, UIO_SYSSPACE, &size_val);
533 return (optval == 0);
536 struct linux_sendto_args {
546 * Updated sendto() when IP_HDRINCL is set:
547 * tweak endian-dependent fields in the IP packet.
550 linux_sendto_hdrincl(struct thread *td, struct linux_sendto_args *linux_args)
553 * linux_ip_copysize defines how many bytes we should copy
554 * from the beginning of the IP packet before we customize it for BSD.
555 * It should include all the fields we modify (ip_len and ip_off).
557 #define linux_ip_copysize 8
561 struct iovec aiov[1];
564 /* Check that the packet isn't too big or too small. */
565 if (linux_args->len < linux_ip_copysize ||
566 linux_args->len > IP_MAXPACKET)
569 packet = (struct ip *)malloc(linux_args->len, M_TEMP, M_WAITOK);
571 /* Make kernel copy of the packet to be sent */
572 if ((error = copyin(PTRIN(linux_args->msg), packet,
576 /* Convert fields from Linux to BSD raw IP socket format */
577 packet->ip_len = linux_args->len;
578 packet->ip_off = ntohs(packet->ip_off);
580 /* Prepare the msghdr and iovec structures describing the new packet */
581 msg.msg_name = PTRIN(linux_args->to);
582 msg.msg_namelen = linux_args->tolen;
585 msg.msg_control = NULL;
587 aiov[0].iov_base = (char *)packet;
588 aiov[0].iov_len = linux_args->len;
589 error = linux_sendit(td, linux_args->s, &msg, linux_args->flags,
592 free(packet, M_TEMP);
596 struct linux_socket_args {
603 linux_socket(struct thread *td, struct linux_socket_args *args)
605 struct socket_args /* {
610 int retval_socket, socket_flags;
612 bsd_args.protocol = args->protocol;
613 socket_flags = args->type & ~LINUX_SOCK_TYPE_MASK;
614 if (socket_flags & ~(LINUX_SOCK_CLOEXEC | LINUX_SOCK_NONBLOCK))
616 bsd_args.type = args->type & LINUX_SOCK_TYPE_MASK;
617 if (bsd_args.type < 0 || bsd_args.type > LINUX_SOCK_MAX)
619 bsd_args.domain = linux_to_bsd_domain(args->domain);
620 if (bsd_args.domain == -1)
621 return (EAFNOSUPPORT);
623 retval_socket = socket(td, &bsd_args);
625 return (retval_socket);
627 retval_socket = linux_set_socket_flags(td, td->td_retval[0],
630 (void)kern_close(td, td->td_retval[0]);
634 if (bsd_args.type == SOCK_RAW
635 && (bsd_args.protocol == IPPROTO_RAW || bsd_args.protocol == 0)
636 && bsd_args.domain == PF_INET) {
637 /* It's a raw IP socket: set the IP_HDRINCL option. */
641 /* We ignore any error returned by kern_setsockopt() */
642 kern_setsockopt(td, td->td_retval[0], IPPROTO_IP, IP_HDRINCL,
643 &hdrincl, UIO_SYSSPACE, sizeof(hdrincl));
647 * Linux AF_INET6 socket has IPV6_V6ONLY setsockopt set to 0 by default
648 * and some apps depend on this. So, set V6ONLY to 0 for Linux apps.
649 * For simplicity we do this unconditionally of the net.inet6.ip6.v6only
652 if (bsd_args.domain == PF_INET6) {
656 /* We ignore any error returned by setsockopt() */
657 kern_setsockopt(td, td->td_retval[0], IPPROTO_IPV6, IPV6_V6ONLY,
658 &v6only, UIO_SYSSPACE, sizeof(v6only));
663 return (retval_socket);
666 struct linux_bind_args {
673 linux_bind(struct thread *td, struct linux_bind_args *args)
678 error = linux_getsockaddr(&sa, PTRIN(args->name),
683 error = kern_bind(td, args->s, sa);
685 if (error == EADDRNOTAVAIL && args->namelen != sizeof(struct sockaddr_in))
690 struct linux_connect_args {
695 int linux_connect(struct thread *, struct linux_connect_args *);
698 linux_connect(struct thread *td, struct linux_connect_args *args)
705 error = linux_getsockaddr(&sa, (struct osockaddr *)PTRIN(args->name),
710 error = kern_connect(td, args->s, sa);
712 if (error != EISCONN)
716 * Linux doesn't return EISCONN the first time it occurs,
717 * when on a non-blocking socket. Instead it returns the
718 * error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
720 * XXXRW: Instead of using fgetsock(), check that it is a
721 * socket and use the file descriptor reference instead of
722 * creating a new one.
724 error = fgetsock(td, args->s, &so, &fflag);
727 if (fflag & FNONBLOCK) {
729 if (so->so_emuldata == 0)
730 error = so->so_error;
731 so->so_emuldata = (void *)1;
739 struct linux_listen_args {
745 linux_listen(struct thread *td, struct linux_listen_args *args)
747 struct listen_args /* {
752 bsd_args.s = args->s;
753 bsd_args.backlog = args->backlog;
754 return (listen(td, &bsd_args));
758 linux_accept_common(struct thread *td, int s, l_uintptr_t addr,
759 l_uintptr_t namelen, int flags)
761 struct accept_args /* {
763 struct sockaddr * __restrict name;
764 socklen_t * __restrict anamelen;
768 if (flags & ~(LINUX_SOCK_CLOEXEC | LINUX_SOCK_NONBLOCK))
773 bsd_args.name = (struct sockaddr * __restrict)PTRIN(addr);
774 bsd_args.anamelen = PTRIN(namelen);/* XXX */
775 error = accept(td, &bsd_args);
776 bsd_to_linux_sockaddr((struct sockaddr *)bsd_args.name);
778 if (error == EFAULT && namelen != sizeof(struct sockaddr_in))
784 * linux appears not to copy flags from the parent socket to the
785 * accepted one, so we must clear the flags in the new descriptor
786 * and apply the requested flags.
788 error = kern_fcntl(td, td->td_retval[0], F_SETFL, 0);
791 error = linux_set_socket_flags(td, td->td_retval[0], flags);
795 error = linux_sa_put(PTRIN(addr));
799 (void)kern_close(td, td->td_retval[0]);
800 td->td_retval[0] = 0;
805 struct linux_accept_args {
812 linux_accept(struct thread *td, struct linux_accept_args *args)
815 return (linux_accept_common(td, args->s, args->addr,
819 struct linux_accept4_args {
827 linux_accept4(struct thread *td, struct linux_accept4_args *args)
830 return (linux_accept_common(td, args->s, args->addr,
831 args->namelen, args->flags));
834 struct linux_getsockname_args {
841 linux_getsockname(struct thread *td, struct linux_getsockname_args *args)
843 struct getsockname_args /* {
845 struct sockaddr * __restrict asa;
846 socklen_t * __restrict alen;
850 bsd_args.fdes = args->s;
852 bsd_args.asa = (struct sockaddr * __restrict)PTRIN(args->addr);
853 bsd_args.alen = PTRIN(args->namelen); /* XXX */
854 error = getsockname(td, &bsd_args);
855 bsd_to_linux_sockaddr((struct sockaddr *)bsd_args.asa);
858 error = linux_sa_put(PTRIN(args->addr));
864 struct linux_getpeername_args {
871 linux_getpeername(struct thread *td, struct linux_getpeername_args *args)
873 struct getpeername_args /* {
880 bsd_args.fdes = args->s;
881 bsd_args.asa = (struct sockaddr *)PTRIN(args->addr);
882 bsd_args.alen = (int *)PTRIN(args->namelen);
883 error = getpeername(td, &bsd_args);
884 bsd_to_linux_sockaddr((struct sockaddr *)bsd_args.asa);
887 error = linux_sa_put(PTRIN(args->addr));
893 struct linux_socketpair_args {
901 linux_socketpair(struct thread *td, struct linux_socketpair_args *args)
903 struct socketpair_args /* {
909 int error, socket_flags;
912 bsd_args.domain = linux_to_bsd_domain(args->domain);
913 if (bsd_args.domain != PF_LOCAL)
914 return (EAFNOSUPPORT);
916 socket_flags = args->type & ~LINUX_SOCK_TYPE_MASK;
917 if (socket_flags & ~(LINUX_SOCK_CLOEXEC | LINUX_SOCK_NONBLOCK))
919 bsd_args.type = args->type & LINUX_SOCK_TYPE_MASK;
920 if (bsd_args.type < 0 || bsd_args.type > LINUX_SOCK_MAX)
923 if (args->protocol != 0 && args->protocol != PF_UNIX)
926 * Use of PF_UNIX as protocol argument is not right,
928 * Do not map PF_UNIX as its Linux value is identical
931 return (EPROTONOSUPPORT);
933 bsd_args.protocol = 0;
934 bsd_args.rsv = (int *)PTRIN(args->rsv);
935 error = kern_socketpair(td, bsd_args.domain, bsd_args.type,
936 bsd_args.protocol, sv);
939 error = linux_set_socket_flags(td, sv[0], socket_flags);
942 error = linux_set_socket_flags(td, sv[1], socket_flags);
946 error = copyout(sv, bsd_args.rsv, 2 * sizeof(int));
950 (void)kern_close(td, sv[0]);
951 (void)kern_close(td, sv[1]);
956 struct linux_send_args {
964 linux_send(struct thread *td, struct linux_send_args *args)
966 struct sendto_args /* {
975 bsd_args.s = args->s;
976 bsd_args.buf = (caddr_t)PTRIN(args->msg);
977 bsd_args.len = args->len;
978 bsd_args.flags = args->flags;
981 return sendto(td, &bsd_args);
984 struct linux_recv_args {
992 linux_recv(struct thread *td, struct linux_recv_args *args)
994 struct recvfrom_args /* {
999 struct sockaddr *from;
1000 socklen_t fromlenaddr;
1003 bsd_args.s = args->s;
1004 bsd_args.buf = (caddr_t)PTRIN(args->msg);
1005 bsd_args.len = args->len;
1006 bsd_args.flags = linux_to_bsd_msg_flags(args->flags);
1007 bsd_args.from = NULL;
1008 bsd_args.fromlenaddr = 0;
1009 return (recvfrom(td, &bsd_args));
1013 linux_sendto(struct thread *td, struct linux_sendto_args *args)
1019 if (linux_check_hdrincl(td, args->s) == 0)
1020 /* IP_HDRINCL set, tweak the packet before sending */
1021 return (linux_sendto_hdrincl(td, args));
1023 msg.msg_name = PTRIN(args->to);
1024 msg.msg_namelen = args->tolen;
1025 msg.msg_iov = &aiov;
1027 msg.msg_control = NULL;
1029 aiov.iov_base = PTRIN(args->msg);
1030 aiov.iov_len = args->len;
1031 error = linux_sendit(td, args->s, &msg, args->flags, NULL,
1036 struct linux_recvfrom_args {
1042 l_uintptr_t fromlen;
1046 linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args)
1048 struct recvfrom_args /* {
1053 struct sockaddr * __restrict from;
1054 socklen_t * __restrict fromlenaddr;
1059 if ((error = copyin(PTRIN(args->fromlen), &len, sizeof(size_t))))
1062 bsd_args.s = args->s;
1063 bsd_args.buf = PTRIN(args->buf);
1064 bsd_args.len = args->len;
1065 bsd_args.flags = linux_to_bsd_msg_flags(args->flags);
1067 bsd_args.from = (struct sockaddr * __restrict)PTRIN(args->from);
1068 bsd_args.fromlenaddr = PTRIN(args->fromlen);/* XXX */
1070 linux_to_bsd_sockaddr((struct sockaddr *)bsd_args.from, len);
1071 error = recvfrom(td, &bsd_args);
1072 bsd_to_linux_sockaddr((struct sockaddr *)bsd_args.from);
1077 error = linux_sa_put((struct osockaddr *)
1085 struct linux_sendmsg_args {
1092 linux_sendmsg(struct thread *td, struct linux_sendmsg_args *args)
1094 struct cmsghdr *cmsg;
1095 struct mbuf *control;
1097 struct l_cmsghdr linux_cmsg;
1098 struct l_cmsghdr *ptr_cmsg;
1099 struct l_msghdr linux_msg;
1105 error = copyin(PTRIN(args->msg), &linux_msg, sizeof(linux_msg));
1108 error = linux_to_bsd_msghdr(&msg, &linux_msg);
1113 * Some Linux applications (ping) define a non-NULL control data
1114 * pointer, but a msg_controllen of 0, which is not allowed in the
1115 * FreeBSD system call interface. NULL the msg_control pointer in
1116 * order to handle this case. This should be checked, but allows the
1117 * Linux ping to work.
1119 if (msg.msg_control != NULL && msg.msg_controllen == 0)
1120 msg.msg_control = NULL;
1122 #ifdef COMPAT_LINUX32
1123 error = linux32_copyiniov(PTRIN(msg.msg_iov), msg.msg_iovlen,
1126 error = copyiniov(msg.msg_iov, msg.msg_iovlen, &iov, EMSGSIZE);
1131 if (msg.msg_control != NULL) {
1133 cmsg = malloc(CMSG_HDRSZ, M_TEMP, M_WAITOK | M_ZERO);
1134 control = m_get(M_WAIT, MT_CONTROL);
1135 if (control == NULL)
1137 ptr_cmsg = LINUX_CMSG_FIRSTHDR(&msg);
1140 error = copyin(ptr_cmsg, &linux_cmsg,
1141 sizeof(struct l_cmsghdr));
1146 if (linux_cmsg.cmsg_len < sizeof(struct l_cmsghdr))
1150 * Now we support only SCM_RIGHTS, so return EINVAL
1151 * in any other cmsg_type
1153 if ((cmsg->cmsg_type =
1154 linux_to_bsd_cmsg_type(linux_cmsg.cmsg_type)) == -1)
1157 linux_to_bsd_sockopt_level(linux_cmsg.cmsg_level);
1159 datalen = linux_cmsg.cmsg_len - L_CMSG_HDRSZ;
1160 cmsg->cmsg_len = CMSG_LEN(datalen);
1161 data = LINUX_CMSG_DATA(ptr_cmsg);
1164 if (!m_append(control, CMSG_HDRSZ, (c_caddr_t) cmsg))
1166 if (!m_append(control, datalen, (c_caddr_t) data))
1168 } while ((ptr_cmsg = LINUX_CMSG_NXTHDR(&msg, ptr_cmsg)));
1176 error = linux_sendit(td, args->s, &msg, args->flags, control,
1186 struct linux_recvmsg_args {
1193 linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args)
1197 struct l_cmsghdr *linux_cmsg = NULL;
1198 socklen_t datalen, outlen, clen;
1199 struct l_msghdr linux_msg;
1200 struct iovec *iov, *uiov;
1201 struct mbuf *control = NULL;
1202 struct mbuf **controlp;
1205 int error, i, fd, fds, *fdp;
1207 error = copyin(PTRIN(args->msg), &linux_msg, sizeof(linux_msg));
1211 error = linux_to_bsd_msghdr(&msg, &linux_msg);
1215 #ifdef COMPAT_LINUX32
1216 error = linux32_copyiniov(PTRIN(msg.msg_iov), msg.msg_iovlen,
1219 error = copyiniov(msg.msg_iov, msg.msg_iovlen, &iov, EMSGSIZE);
1225 error = linux_to_bsd_sockaddr((struct sockaddr *)msg.msg_name,
1233 controlp = (msg.msg_control != NULL) ? &control : NULL;
1234 error = kern_recvit(td, args->s, &msg, UIO_USERSPACE, controlp);
1239 error = bsd_to_linux_msghdr(&msg, &linux_msg);
1243 if (linux_msg.msg_name) {
1244 error = bsd_to_linux_sockaddr((struct sockaddr *)
1245 PTRIN(linux_msg.msg_name));
1249 if (linux_msg.msg_name && linux_msg.msg_namelen > 2) {
1250 error = linux_sa_put(PTRIN(linux_msg.msg_name));
1257 linux_cmsg = malloc(L_CMSG_HDRSZ, M_TEMP, M_WAITOK | M_ZERO);
1258 outbuf = PTRIN(linux_msg.msg_control);
1259 cm = mtod(control, struct cmsghdr *);
1261 clen = control->m_len;
1263 while (cm != NULL) {
1265 if ((linux_cmsg->cmsg_type =
1266 bsd_to_linux_cmsg_type(cm->cmsg_type)) == -1)
1271 data = CMSG_DATA(cm);
1272 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1274 switch (linux_cmsg->cmsg_type)
1276 case LINUX_SCM_RIGHTS:
1277 if (outlen + LINUX_CMSG_LEN(datalen) >
1278 linux_msg.msg_controllen) {
1283 linux_msg.msg_flags |=
1288 if (args->flags & LINUX_MSG_CMSG_CLOEXEC) {
1289 fds = datalen / sizeof(int);
1291 for (i = 0; i < fds; i++) {
1293 (void)kern_fcntl(td, fd,
1294 F_SETFD, FD_CLOEXEC);
1300 linux_cmsg->cmsg_len = LINUX_CMSG_LEN(datalen);
1301 linux_cmsg->cmsg_level =
1302 bsd_to_linux_sockopt_level(cm->cmsg_level);
1304 error = copyout(linux_cmsg, outbuf, L_CMSG_HDRSZ);
1307 outbuf += L_CMSG_HDRSZ;
1309 error = copyout(data, outbuf, datalen);
1313 outbuf += LINUX_CMSG_ALIGN(datalen);
1314 outlen += LINUX_CMSG_LEN(datalen);
1315 linux_msg.msg_controllen = outlen;
1317 if (CMSG_SPACE(datalen) < clen) {
1318 clen -= CMSG_SPACE(datalen);
1319 cm = (struct cmsghdr *)
1320 ((caddr_t)cm + CMSG_SPACE(datalen));
1327 error = copyout(&linux_msg, PTRIN(args->msg), sizeof(linux_msg));
1331 if (control != NULL)
1333 if (linux_cmsg != NULL)
1334 free(linux_cmsg, M_TEMP);
1339 struct linux_shutdown_args {
1345 linux_shutdown(struct thread *td, struct linux_shutdown_args *args)
1347 struct shutdown_args /* {
1352 bsd_args.s = args->s;
1353 bsd_args.how = args->how;
1354 return (shutdown(td, &bsd_args));
1357 struct linux_setsockopt_args {
1366 linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
1368 struct setsockopt_args /* {
1379 bsd_args.s = args->s;
1380 bsd_args.level = linux_to_bsd_sockopt_level(args->level);
1381 switch (bsd_args.level) {
1383 name = linux_to_bsd_so_sockopt(args->optname);
1388 error = copyin(PTRIN(args->optval), &linux_tv,
1392 tv.tv_sec = linux_tv.tv_sec;
1393 tv.tv_usec = linux_tv.tv_usec;
1394 return (kern_setsockopt(td, args->s, bsd_args.level,
1395 name, &tv, UIO_SYSSPACE, sizeof(tv)));
1403 name = linux_to_bsd_ip_sockopt(args->optname);
1406 /* Linux TCP option values match BSD's */
1407 name = args->optname;
1414 return (ENOPROTOOPT);
1416 bsd_args.name = name;
1417 bsd_args.val = PTRIN(args->optval);
1418 bsd_args.valsize = args->optlen;
1420 if (name == IPV6_NEXTHOP) {
1421 linux_to_bsd_sockaddr((struct sockaddr *)bsd_args.val,
1423 error = setsockopt(td, &bsd_args);
1424 bsd_to_linux_sockaddr((struct sockaddr *)bsd_args.val);
1426 error = setsockopt(td, &bsd_args);
1431 struct linux_getsockopt_args {
1440 linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
1442 struct getsockopt_args /* {
1451 socklen_t tv_len, xulen;
1456 bsd_args.s = args->s;
1457 bsd_args.level = linux_to_bsd_sockopt_level(args->level);
1458 switch (bsd_args.level) {
1460 name = linux_to_bsd_so_sockopt(args->optname);
1465 tv_len = sizeof(tv);
1466 error = kern_getsockopt(td, args->s, bsd_args.level,
1467 name, &tv, UIO_SYSSPACE, &tv_len);
1470 linux_tv.tv_sec = tv.tv_sec;
1471 linux_tv.tv_usec = tv.tv_usec;
1472 return (copyout(&linux_tv, PTRIN(args->optval),
1476 case LOCAL_PEERCRED:
1477 if (args->optlen != sizeof(lxu))
1480 error = kern_getsockopt(td, args->s, bsd_args.level,
1481 name, &xu, UIO_SYSSPACE, &xulen);
1485 * XXX Use 0 for pid as the FreeBSD does not cache peer pid.
1488 lxu.uid = xu.cr_uid;
1489 lxu.gid = xu.cr_gid;
1490 return (copyout(&lxu, PTRIN(args->optval), sizeof(lxu)));
1498 name = linux_to_bsd_ip_sockopt(args->optname);
1501 /* Linux TCP option values match BSD's */
1502 name = args->optname;
1511 bsd_args.name = name;
1512 bsd_args.val = PTRIN(args->optval);
1513 bsd_args.avalsize = PTRIN(args->optlen);
1515 if (name == IPV6_NEXTHOP) {
1516 error = getsockopt(td, &bsd_args);
1517 bsd_to_linux_sockaddr((struct sockaddr *)bsd_args.val);
1519 error = getsockopt(td, &bsd_args);
1524 /* Argument list sizes for linux_socketcall */
1526 #define LINUX_AL(x) ((x) * sizeof(l_ulong))
1528 static const unsigned char lxs_args[] = {
1529 LINUX_AL(0) /* unused*/, LINUX_AL(3) /* socket */,
1530 LINUX_AL(3) /* bind */, LINUX_AL(3) /* connect */,
1531 LINUX_AL(2) /* listen */, LINUX_AL(3) /* accept */,
1532 LINUX_AL(3) /* getsockname */, LINUX_AL(3) /* getpeername */,
1533 LINUX_AL(4) /* socketpair */, LINUX_AL(4) /* send */,
1534 LINUX_AL(4) /* recv */, LINUX_AL(6) /* sendto */,
1535 LINUX_AL(6) /* recvfrom */, LINUX_AL(2) /* shutdown */,
1536 LINUX_AL(5) /* setsockopt */, LINUX_AL(5) /* getsockopt */,
1537 LINUX_AL(3) /* sendmsg */, LINUX_AL(3) /* recvmsg */,
1538 LINUX_AL(4) /* accept4 */
1541 #define LINUX_AL_SIZE sizeof(lxs_args) / sizeof(lxs_args[0]) - 1
1544 linux_socketcall(struct thread *td, struct linux_socketcall_args *args)
1550 if (args->what < LINUX_SOCKET || args->what > LINUX_AL_SIZE)
1552 error = copyin(PTRIN(args->args), a, lxs_args[args->what]);
1557 switch (args->what) {
1559 return (linux_socket(td, arg));
1561 return (linux_bind(td, arg));
1563 return (linux_connect(td, arg));
1565 return (linux_listen(td, arg));
1567 return (linux_accept(td, arg));
1568 case LINUX_GETSOCKNAME:
1569 return (linux_getsockname(td, arg));
1570 case LINUX_GETPEERNAME:
1571 return (linux_getpeername(td, arg));
1572 case LINUX_SOCKETPAIR:
1573 return (linux_socketpair(td, arg));
1575 return (linux_send(td, arg));
1577 return (linux_recv(td, arg));
1579 return (linux_sendto(td, arg));
1580 case LINUX_RECVFROM:
1581 return (linux_recvfrom(td, arg));
1582 case LINUX_SHUTDOWN:
1583 return (linux_shutdown(td, arg));
1584 case LINUX_SETSOCKOPT:
1585 return (linux_setsockopt(td, arg));
1586 case LINUX_GETSOCKOPT:
1587 return (linux_getsockopt(td, arg));
1589 return (linux_sendmsg(td, arg));
1591 return (linux_recvmsg(td, arg));
1593 return (linux_accept4(td, arg));
1596 uprintf("LINUX: 'socket' typ=%d not implemented\n", args->what);