mirror of
https://git.FreeBSD.org/src.git
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21dc7d4f57
Spotted and suggested by: des MFC after: 3 weeks
972 lines
21 KiB
C
972 lines
21 KiB
C
/*-
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* Copyright (c) 1995 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* XXX we use functions that might not exist. */
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#include "opt_compat.h"
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#ifndef COMPAT_43
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#error "Unable to compile Linux-emulator due to missing COMPAT_43 option!"
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#endif
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/sysproto.h>
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#include <sys/fcntl.h>
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#include <sys/file.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <machine/../linux/linux.h>
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#include <machine/../linux/linux_proto.h>
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#include <compat/linux/linux_socket.h>
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#include <compat/linux/linux_util.h>
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/*
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* FreeBSD's socket calls require the sockaddr struct length to agree
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* with the address family. Linux does not, so we must force it.
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*/
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static int
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linux_to_bsd_namelen(caddr_t name, int namelen)
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{
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uint16_t family; /* XXX must match Linux sockaddr */
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if (copyin(name, &family, sizeof(family)))
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return namelen;
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switch (family) {
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case AF_INET:
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return sizeof(struct sockaddr_in);
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case AF_INET6:
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return sizeof(struct sockaddr_in6);
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}
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return namelen;
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}
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#ifndef __alpha__
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static int
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linux_to_bsd_domain(int domain)
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{
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switch (domain) {
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case LINUX_AF_UNSPEC:
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return (AF_UNSPEC);
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case LINUX_AF_UNIX:
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return (AF_LOCAL);
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case LINUX_AF_INET:
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return (AF_INET);
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case LINUX_AF_AX25:
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return (AF_CCITT);
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case LINUX_AF_IPX:
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return (AF_IPX);
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case LINUX_AF_APPLETALK:
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return (AF_APPLETALK);
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}
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return (-1);
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}
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static int
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linux_to_bsd_sockopt_level(int level)
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{
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switch (level) {
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case LINUX_SOL_SOCKET:
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return (SOL_SOCKET);
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}
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return (level);
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}
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static int
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linux_to_bsd_ip_sockopt(int opt)
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{
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switch (opt) {
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case LINUX_IP_TOS:
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return (IP_TOS);
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case LINUX_IP_TTL:
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return (IP_TTL);
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case LINUX_IP_OPTIONS:
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return (IP_OPTIONS);
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case LINUX_IP_MULTICAST_IF:
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return (IP_MULTICAST_IF);
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case LINUX_IP_MULTICAST_TTL:
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return (IP_MULTICAST_TTL);
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case LINUX_IP_MULTICAST_LOOP:
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return (IP_MULTICAST_LOOP);
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case LINUX_IP_ADD_MEMBERSHIP:
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return (IP_ADD_MEMBERSHIP);
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case LINUX_IP_DROP_MEMBERSHIP:
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return (IP_DROP_MEMBERSHIP);
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case LINUX_IP_HDRINCL:
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return (IP_HDRINCL);
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}
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return (-1);
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}
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static int
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linux_to_bsd_so_sockopt(int opt)
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{
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switch (opt) {
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case LINUX_SO_DEBUG:
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return (SO_DEBUG);
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case LINUX_SO_REUSEADDR:
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return (SO_REUSEADDR);
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case LINUX_SO_TYPE:
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return (SO_TYPE);
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case LINUX_SO_ERROR:
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return (SO_ERROR);
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case LINUX_SO_DONTROUTE:
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return (SO_DONTROUTE);
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case LINUX_SO_BROADCAST:
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return (SO_BROADCAST);
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case LINUX_SO_SNDBUF:
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return (SO_SNDBUF);
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case LINUX_SO_RCVBUF:
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return (SO_RCVBUF);
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case LINUX_SO_KEEPALIVE:
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return (SO_KEEPALIVE);
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case LINUX_SO_OOBINLINE:
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return (SO_OOBINLINE);
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case LINUX_SO_LINGER:
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return (SO_LINGER);
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}
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return (-1);
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}
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static int
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linux_to_bsd_msg_flags(int flags)
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{
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int ret_flags = 0;
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if (flags & LINUX_MSG_OOB)
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ret_flags |= MSG_OOB;
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if (flags & LINUX_MSG_PEEK)
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ret_flags |= MSG_PEEK;
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if (flags & LINUX_MSG_DONTROUTE)
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ret_flags |= MSG_DONTROUTE;
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if (flags & LINUX_MSG_CTRUNC)
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ret_flags |= MSG_CTRUNC;
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if (flags & LINUX_MSG_TRUNC)
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ret_flags |= MSG_TRUNC;
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if (flags & LINUX_MSG_DONTWAIT)
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ret_flags |= MSG_DONTWAIT;
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if (flags & LINUX_MSG_EOR)
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ret_flags |= MSG_EOR;
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if (flags & LINUX_MSG_WAITALL)
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ret_flags |= MSG_WAITALL;
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#if 0 /* not handled */
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if (flags & LINUX_MSG_PROXY)
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;
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if (flags & LINUX_MSG_FIN)
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;
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if (flags & LINUX_MSG_SYN)
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;
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if (flags & LINUX_MSG_CONFIRM)
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;
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if (flags & LINUX_MSG_RST)
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;
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if (flags & LINUX_MSG_ERRQUEUE)
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;
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if (flags & LINUX_MSG_NOSIGNAL)
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;
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#endif
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return ret_flags;
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}
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/* Return 0 if IP_HDRINCL is set for the given socket. */
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static int
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linux_check_hdrincl(struct thread *td, int s)
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{
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struct getsockopt_args /* {
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int s;
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int level;
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int name;
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caddr_t val;
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int *avalsize;
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} */ bsd_args;
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int error;
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caddr_t sg, val, valsize;
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int size_val = sizeof val;
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int optval;
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sg = stackgap_init();
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val = stackgap_alloc(&sg, sizeof(int));
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valsize = stackgap_alloc(&sg, sizeof(int));
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if ((error = copyout(&size_val, valsize, sizeof(size_val))))
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return (error);
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bsd_args.s = s;
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bsd_args.level = IPPROTO_IP;
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bsd_args.name = IP_HDRINCL;
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bsd_args.val = val;
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bsd_args.avalsize = (int *)valsize;
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if ((error = getsockopt(td, &bsd_args)))
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return (error);
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if ((error = copyin(val, &optval, sizeof(optval))))
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return (error);
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return (optval == 0);
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}
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/*
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* Updated sendto() when IP_HDRINCL is set:
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* tweak endian-dependent fields in the IP packet.
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*/
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static int
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linux_sendto_hdrincl(struct thread *td, struct sendto_args *bsd_args)
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{
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/*
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* linux_ip_copysize defines how many bytes we should copy
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* from the beginning of the IP packet before we customize it for BSD.
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* It should include all the fields we modify (ip_len and ip_off)
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* and be as small as possible to minimize copying overhead.
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*/
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#define linux_ip_copysize 8
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caddr_t sg;
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struct ip *packet;
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struct msghdr *msg;
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struct iovec *iov;
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int error;
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struct sendmsg_args /* {
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int s;
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caddr_t msg;
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int flags;
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} */ sendmsg_args;
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/* Check the packet isn't too small before we mess with it */
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if (bsd_args->len < linux_ip_copysize)
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return (EINVAL);
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/*
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* Tweaking the user buffer in place would be bad manners.
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* We create a corrected IP header with just the needed length,
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* then use an iovec to glue it to the rest of the user packet
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* when calling sendmsg().
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*/
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sg = stackgap_init();
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packet = (struct ip *)stackgap_alloc(&sg, linux_ip_copysize);
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msg = (struct msghdr *)stackgap_alloc(&sg, sizeof(*msg));
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iov = (struct iovec *)stackgap_alloc(&sg, sizeof(*iov)*2);
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/* Make a copy of the beginning of the packet to be sent */
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if ((error = copyin(bsd_args->buf, packet, linux_ip_copysize)))
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return (error);
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/* Convert fields from Linux to BSD raw IP socket format */
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packet->ip_len = bsd_args->len;
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packet->ip_off = ntohs(packet->ip_off);
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/* Prepare the msghdr and iovec structures describing the new packet */
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msg->msg_name = bsd_args->to;
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msg->msg_namelen = bsd_args->tolen;
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msg->msg_iov = iov;
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msg->msg_iovlen = 2;
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msg->msg_control = NULL;
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msg->msg_controllen = 0;
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msg->msg_flags = 0;
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iov[0].iov_base = (char *)packet;
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iov[0].iov_len = linux_ip_copysize;
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iov[1].iov_base = (char *)(bsd_args->buf) + linux_ip_copysize;
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iov[1].iov_len = bsd_args->len - linux_ip_copysize;
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sendmsg_args.s = bsd_args->s;
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sendmsg_args.msg = (caddr_t)msg;
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sendmsg_args.flags = bsd_args->flags;
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return (sendmsg(td, &sendmsg_args));
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}
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struct linux_socket_args {
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int domain;
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int type;
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int protocol;
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};
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static int
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linux_socket(struct thread *td, struct linux_socket_args *args)
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{
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struct linux_socket_args linux_args;
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struct socket_args /* {
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int domain;
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int type;
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int protocol;
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} */ bsd_args;
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int error;
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int retval_socket;
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if ((error = copyin(args, &linux_args, sizeof(linux_args))))
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return (error);
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bsd_args.protocol = linux_args.protocol;
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bsd_args.type = linux_args.type;
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bsd_args.domain = linux_to_bsd_domain(linux_args.domain);
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if (bsd_args.domain == -1)
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return (EINVAL);
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retval_socket = socket(td, &bsd_args);
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if (bsd_args.type == SOCK_RAW
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&& (bsd_args.protocol == IPPROTO_RAW || bsd_args.protocol == 0)
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&& bsd_args.domain == AF_INET
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&& retval_socket >= 0) {
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/* It's a raw IP socket: set the IP_HDRINCL option. */
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struct setsockopt_args /* {
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int s;
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int level;
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int name;
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caddr_t val;
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int valsize;
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} */ bsd_setsockopt_args;
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caddr_t sg;
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int *hdrincl;
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sg = stackgap_init();
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hdrincl = (int *)stackgap_alloc(&sg, sizeof(*hdrincl));
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*hdrincl = 1;
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bsd_setsockopt_args.s = td->td_retval[0];
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bsd_setsockopt_args.level = IPPROTO_IP;
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bsd_setsockopt_args.name = IP_HDRINCL;
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bsd_setsockopt_args.val = (caddr_t)hdrincl;
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bsd_setsockopt_args.valsize = sizeof(*hdrincl);
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/* We ignore any error returned by setsockopt() */
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setsockopt(td, &bsd_setsockopt_args);
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/* Copy back the return value from socket() */
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td->td_retval[0] = bsd_setsockopt_args.s;
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}
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return (retval_socket);
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}
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struct linux_bind_args {
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int s;
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struct sockaddr *name;
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int namelen;
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};
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static int
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linux_bind(struct thread *td, struct linux_bind_args *args)
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{
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struct linux_bind_args linux_args;
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struct bind_args /* {
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int s;
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caddr_t name;
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int namelen;
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} */ bsd_args;
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int error;
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if ((error = copyin(args, &linux_args, sizeof(linux_args))))
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return (error);
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bsd_args.s = linux_args.s;
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bsd_args.name = (caddr_t)linux_args.name;
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bsd_args.namelen = linux_to_bsd_namelen(bsd_args.name, linux_args.namelen);
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return (bind(td, &bsd_args));
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}
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struct linux_connect_args {
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int s;
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struct sockaddr * name;
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int namelen;
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};
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int linux_connect(struct thread *, struct linux_connect_args *);
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#endif /* !__alpha__*/
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int
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linux_connect(struct thread *td, struct linux_connect_args *args)
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{
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struct linux_connect_args linux_args;
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struct connect_args /* {
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int s;
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caddr_t name;
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int namelen;
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} */ bsd_args;
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struct socket *so;
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u_int fflag;
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int error;
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#ifdef __alpha__
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bcopy(args, &linux_args, sizeof(linux_args));
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#else
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if ((error = copyin(args, &linux_args, sizeof(linux_args))))
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return (error);
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#endif /* __alpha__ */
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bsd_args.s = linux_args.s;
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bsd_args.name = (caddr_t)linux_args.name;
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bsd_args.namelen = linux_to_bsd_namelen(bsd_args.name, linux_args.namelen);
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error = connect(td, &bsd_args);
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if (error != EISCONN)
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return (error);
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|
|
/*
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* Linux doesn't return EISCONN the first time it occurs,
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* when on a non-blocking socket. Instead it returns the
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* error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
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*/
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if ((error = fgetsock(td, linux_args.s, &so, &fflag)) != 0)
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return(error);
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error = EISCONN;
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if (fflag & FNONBLOCK) {
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if (so->so_emuldata == 0)
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error = so->so_error;
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so->so_emuldata = (void *)1;
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}
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fputsock(so);
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return (error);
|
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}
|
|
|
|
#ifndef __alpha__
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|
|
|
struct linux_listen_args {
|
|
int s;
|
|
int backlog;
|
|
};
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|
|
|
static int
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linux_listen(struct thread *td, struct linux_listen_args *args)
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|
{
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|
struct linux_listen_args linux_args;
|
|
struct listen_args /* {
|
|
int s;
|
|
int backlog;
|
|
} */ bsd_args;
|
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int error;
|
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|
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if ((error = copyin(args, &linux_args, sizeof(linux_args))))
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return (error);
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|
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bsd_args.s = linux_args.s;
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bsd_args.backlog = linux_args.backlog;
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return (listen(td, &bsd_args));
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}
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|
|
|
struct linux_accept_args {
|
|
int s;
|
|
struct sockaddr *addr;
|
|
int *namelen;
|
|
};
|
|
|
|
static int
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|
linux_accept(struct thread *td, struct linux_accept_args *args)
|
|
{
|
|
struct linux_accept_args linux_args;
|
|
struct accept_args /* {
|
|
int s;
|
|
caddr_t name;
|
|
int *anamelen;
|
|
} */ bsd_args;
|
|
struct fcntl_args /* {
|
|
int fd;
|
|
int cmd;
|
|
long arg;
|
|
} */ f_args;
|
|
int error;
|
|
|
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if ((error = copyin(args, &linux_args, sizeof(linux_args))))
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return (error);
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|
|
bsd_args.s = linux_args.s;
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bsd_args.name = (caddr_t)linux_args.addr;
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bsd_args.anamelen = linux_args.namelen;
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error = oaccept(td, &bsd_args);
|
|
if (error)
|
|
return (error);
|
|
|
|
/*
|
|
* linux appears not to copy flags from the parent socket to the
|
|
* accepted one, so we must clear the flags in the new descriptor.
|
|
* Ignore any errors, because we already have an open fd.
|
|
*/
|
|
f_args.fd = td->td_retval[0];
|
|
f_args.cmd = F_SETFL;
|
|
f_args.arg = 0;
|
|
(void)fcntl(td, &f_args);
|
|
td->td_retval[0] = f_args.fd;
|
|
return (0);
|
|
}
|
|
|
|
struct linux_getsockname_args {
|
|
int s;
|
|
struct sockaddr *addr;
|
|
int *namelen;
|
|
};
|
|
|
|
static int
|
|
linux_getsockname(struct thread *td, struct linux_getsockname_args *args)
|
|
{
|
|
struct linux_getsockname_args linux_args;
|
|
struct getsockname_args /* {
|
|
int fdes;
|
|
caddr_t asa;
|
|
int *alen;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.fdes = linux_args.s;
|
|
bsd_args.asa = (caddr_t) linux_args.addr;
|
|
bsd_args.alen = linux_args.namelen;
|
|
return (ogetsockname(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_getpeername_args {
|
|
int s;
|
|
struct sockaddr *addr;
|
|
int *namelen;
|
|
};
|
|
|
|
static int
|
|
linux_getpeername(struct thread *td, struct linux_getpeername_args *args)
|
|
{
|
|
struct linux_getpeername_args linux_args;
|
|
struct ogetpeername_args /* {
|
|
int fdes;
|
|
caddr_t asa;
|
|
int *alen;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.fdes = linux_args.s;
|
|
bsd_args.asa = (caddr_t) linux_args.addr;
|
|
bsd_args.alen = linux_args.namelen;
|
|
return (ogetpeername(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_socketpair_args {
|
|
int domain;
|
|
int type;
|
|
int protocol;
|
|
int *rsv;
|
|
};
|
|
|
|
static int
|
|
linux_socketpair(struct thread *td, struct linux_socketpair_args *args)
|
|
{
|
|
struct linux_socketpair_args linux_args;
|
|
struct socketpair_args /* {
|
|
int domain;
|
|
int type;
|
|
int protocol;
|
|
int *rsv;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.domain = linux_to_bsd_domain(linux_args.domain);
|
|
if (bsd_args.domain == -1)
|
|
return (EINVAL);
|
|
|
|
bsd_args.type = linux_args.type;
|
|
bsd_args.protocol = linux_args.protocol;
|
|
bsd_args.rsv = linux_args.rsv;
|
|
return (socketpair(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_send_args {
|
|
int s;
|
|
void *msg;
|
|
int len;
|
|
int flags;
|
|
};
|
|
|
|
static int
|
|
linux_send(struct thread *td, struct linux_send_args *args)
|
|
{
|
|
struct linux_send_args linux_args;
|
|
struct osend_args /* {
|
|
int s;
|
|
caddr_t buf;
|
|
int len;
|
|
int flags;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.buf = linux_args.msg;
|
|
bsd_args.len = linux_args.len;
|
|
bsd_args.flags = linux_args.flags;
|
|
return (osend(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_recv_args {
|
|
int s;
|
|
void *msg;
|
|
int len;
|
|
int flags;
|
|
};
|
|
|
|
static int
|
|
linux_recv(struct thread *td, struct linux_recv_args *args)
|
|
{
|
|
struct linux_recv_args linux_args;
|
|
struct orecv_args /* {
|
|
int s;
|
|
caddr_t buf;
|
|
int len;
|
|
int flags;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.buf = linux_args.msg;
|
|
bsd_args.len = linux_args.len;
|
|
bsd_args.flags = linux_args.flags;
|
|
return (orecv(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_sendto_args {
|
|
int s;
|
|
void *msg;
|
|
int len;
|
|
int flags;
|
|
caddr_t to;
|
|
int tolen;
|
|
};
|
|
|
|
static int
|
|
linux_sendto(struct thread *td, struct linux_sendto_args *args)
|
|
{
|
|
struct linux_sendto_args linux_args;
|
|
struct sendto_args /* {
|
|
int s;
|
|
caddr_t buf;
|
|
size_t len;
|
|
int flags;
|
|
caddr_t to;
|
|
int tolen;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.buf = linux_args.msg;
|
|
bsd_args.len = linux_args.len;
|
|
bsd_args.flags = linux_args.flags;
|
|
bsd_args.to = linux_args.to;
|
|
bsd_args.tolen = linux_args.tolen;
|
|
|
|
if (linux_check_hdrincl(td, linux_args.s) == 0)
|
|
/* IP_HDRINCL set, tweak the packet before sending */
|
|
return (linux_sendto_hdrincl(td, &bsd_args));
|
|
|
|
return (sendto(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_recvfrom_args {
|
|
int s;
|
|
void *buf;
|
|
int len;
|
|
int flags;
|
|
caddr_t from;
|
|
int *fromlen;
|
|
};
|
|
|
|
static int
|
|
linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args)
|
|
{
|
|
struct linux_recvfrom_args linux_args;
|
|
struct recvfrom_args /* {
|
|
int s;
|
|
caddr_t buf;
|
|
size_t len;
|
|
int flags;
|
|
caddr_t from;
|
|
int *fromlenaddr;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.buf = linux_args.buf;
|
|
bsd_args.len = linux_args.len;
|
|
bsd_args.flags = linux_to_bsd_msg_flags(linux_args.flags);
|
|
bsd_args.from = linux_args.from;
|
|
bsd_args.fromlenaddr = linux_args.fromlen;
|
|
return (orecvfrom(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_recvmsg_args {
|
|
int s;
|
|
struct msghdr *msg;
|
|
int flags;
|
|
};
|
|
|
|
static int
|
|
linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args)
|
|
{
|
|
struct linux_recvmsg_args linux_args;
|
|
struct recvmsg_args /* {
|
|
int s;
|
|
struct msghdr *msg;
|
|
int flags;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.msg = linux_args.msg;
|
|
bsd_args.flags = linux_to_bsd_msg_flags(linux_args.flags);
|
|
return (recvmsg(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_shutdown_args {
|
|
int s;
|
|
int how;
|
|
};
|
|
|
|
static int
|
|
linux_shutdown(struct thread *td, struct linux_shutdown_args *args)
|
|
{
|
|
struct linux_shutdown_args linux_args;
|
|
struct shutdown_args /* {
|
|
int s;
|
|
int how;
|
|
} */ bsd_args;
|
|
int error;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.how = linux_args.how;
|
|
return (shutdown(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_setsockopt_args {
|
|
int s;
|
|
int level;
|
|
int optname;
|
|
void *optval;
|
|
int optlen;
|
|
};
|
|
|
|
static int
|
|
linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
|
|
{
|
|
struct linux_setsockopt_args linux_args;
|
|
struct setsockopt_args /* {
|
|
int s;
|
|
int level;
|
|
int name;
|
|
caddr_t val;
|
|
int valsize;
|
|
} */ bsd_args;
|
|
int error, name;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.level = linux_to_bsd_sockopt_level(linux_args.level);
|
|
switch (bsd_args.level) {
|
|
case SOL_SOCKET:
|
|
name = linux_to_bsd_so_sockopt(linux_args.optname);
|
|
break;
|
|
case IPPROTO_IP:
|
|
name = linux_to_bsd_ip_sockopt(linux_args.optname);
|
|
break;
|
|
case IPPROTO_TCP:
|
|
/* Linux TCP option values match BSD's */
|
|
name = linux_args.optname;
|
|
break;
|
|
default:
|
|
name = -1;
|
|
break;
|
|
}
|
|
if (name == -1)
|
|
return (EINVAL);
|
|
|
|
bsd_args.name = name;
|
|
bsd_args.val = linux_args.optval;
|
|
bsd_args.valsize = linux_args.optlen;
|
|
return (setsockopt(td, &bsd_args));
|
|
}
|
|
|
|
struct linux_getsockopt_args {
|
|
int s;
|
|
int level;
|
|
int optname;
|
|
void *optval;
|
|
int *optlen;
|
|
};
|
|
|
|
static int
|
|
linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
|
|
{
|
|
struct linux_getsockopt_args linux_args;
|
|
struct getsockopt_args /* {
|
|
int s;
|
|
int level;
|
|
int name;
|
|
caddr_t val;
|
|
int *avalsize;
|
|
} */ bsd_args;
|
|
int error, name;
|
|
|
|
if ((error = copyin(args, &linux_args, sizeof(linux_args))))
|
|
return (error);
|
|
|
|
bsd_args.s = linux_args.s;
|
|
bsd_args.level = linux_to_bsd_sockopt_level(linux_args.level);
|
|
switch (bsd_args.level) {
|
|
case SOL_SOCKET:
|
|
name = linux_to_bsd_so_sockopt(linux_args.optname);
|
|
break;
|
|
case IPPROTO_IP:
|
|
name = linux_to_bsd_ip_sockopt(linux_args.optname);
|
|
break;
|
|
case IPPROTO_TCP:
|
|
/* Linux TCP option values match BSD's */
|
|
name = linux_args.optname;
|
|
break;
|
|
default:
|
|
name = -1;
|
|
break;
|
|
}
|
|
if (name == -1)
|
|
return (EINVAL);
|
|
|
|
bsd_args.name = name;
|
|
bsd_args.val = linux_args.optval;
|
|
bsd_args.avalsize = linux_args.optlen;
|
|
return (getsockopt(td, &bsd_args));
|
|
}
|
|
|
|
int
|
|
linux_socketcall(struct thread *td, struct linux_socketcall_args *args)
|
|
{
|
|
void *arg = (void *)args->args;
|
|
|
|
switch (args->what) {
|
|
case LINUX_SOCKET:
|
|
return (linux_socket(td, arg));
|
|
case LINUX_BIND:
|
|
return (linux_bind(td, arg));
|
|
case LINUX_CONNECT:
|
|
return (linux_connect(td, arg));
|
|
case LINUX_LISTEN:
|
|
return (linux_listen(td, arg));
|
|
case LINUX_ACCEPT:
|
|
return (linux_accept(td, arg));
|
|
case LINUX_GETSOCKNAME:
|
|
return (linux_getsockname(td, arg));
|
|
case LINUX_GETPEERNAME:
|
|
return (linux_getpeername(td, arg));
|
|
case LINUX_SOCKETPAIR:
|
|
return (linux_socketpair(td, arg));
|
|
case LINUX_SEND:
|
|
return (linux_send(td, arg));
|
|
case LINUX_RECV:
|
|
return (linux_recv(td, arg));
|
|
case LINUX_SENDTO:
|
|
return (linux_sendto(td, arg));
|
|
case LINUX_RECVFROM:
|
|
return (linux_recvfrom(td, arg));
|
|
case LINUX_SHUTDOWN:
|
|
return (linux_shutdown(td, arg));
|
|
case LINUX_SETSOCKOPT:
|
|
return (linux_setsockopt(td, arg));
|
|
case LINUX_GETSOCKOPT:
|
|
return (linux_getsockopt(td, arg));
|
|
case LINUX_SENDMSG:
|
|
do {
|
|
int error;
|
|
int level;
|
|
caddr_t control;
|
|
struct {
|
|
int s;
|
|
const struct msghdr *msg;
|
|
int flags;
|
|
} *uap = arg;
|
|
|
|
error = copyin(&uap->msg->msg_control, &control,
|
|
sizeof(caddr_t));
|
|
if (error)
|
|
return (error);
|
|
|
|
if (control == NULL)
|
|
goto done;
|
|
|
|
error = copyin(&((struct cmsghdr*)control)->cmsg_level,
|
|
&level, sizeof(int));
|
|
if (error)
|
|
return (error);
|
|
|
|
if (level == 1) {
|
|
/*
|
|
* Linux thinks that SOL_SOCKET is 1; we know
|
|
* that it's really 0xffff, of course.
|
|
*/
|
|
level = SOL_SOCKET;
|
|
error = copyout(&level,
|
|
&((struct cmsghdr *)control)->cmsg_level,
|
|
sizeof(int));
|
|
if (error)
|
|
return (error);
|
|
}
|
|
done:
|
|
return (sendmsg(td, arg));
|
|
} while (0);
|
|
case LINUX_RECVMSG:
|
|
return (linux_recvmsg(td, arg));
|
|
}
|
|
|
|
uprintf("LINUX: 'socket' typ=%d not implemented\n", args->what);
|
|
return (ENOSYS);
|
|
}
|
|
#endif /*!__alpha__*/
|