NetBSD/sys/compat/svr4/svr4_sockio.c

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/* $NetBSD: svr4_sockio.c,v 1.30 2007/05/29 21:32:28 christos Exp $ */
/*-
* Copyright (c) 1995 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: svr4_sockio.c,v 1.30 2007/05/29 21:32:28 christos Exp $");
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/termios.h>
#include <sys/tty.h>
#include <sys/socket.h>
#include <sys/mount.h>
#include <net/if.h>
#include <sys/malloc.h>
#include <sys/syscallargs.h>
#include <compat/sys/socket.h>
#include <compat/sys/sockio.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_signal.h>
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#include <compat/svr4/svr4_lwp.h>
#include <compat/svr4/svr4_ucontext.h>
#include <compat/svr4/svr4_syscallargs.h>
#include <compat/svr4/svr4_stropts.h>
#include <compat/svr4/svr4_ioctl.h>
#include <compat/svr4/svr4_sockio.h>
static int bsd_to_svr4_flags __P((int));
#define bsd_to_svr4_flag(a) \
if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a)
static int
bsd_to_svr4_flags(bf)
int bf;
{
int sf = 0;
bsd_to_svr4_flag(FF_UP);
bsd_to_svr4_flag(FF_BROADCAST);
bsd_to_svr4_flag(FF_DEBUG);
bsd_to_svr4_flag(FF_LOOPBACK);
bsd_to_svr4_flag(FF_POINTOPOINT);
bsd_to_svr4_flag(FF_NOTRAILERS);
bsd_to_svr4_flag(FF_RUNNING);
bsd_to_svr4_flag(FF_NOARP);
bsd_to_svr4_flag(FF_PROMISC);
bsd_to_svr4_flag(FF_ALLMULTI);
bsd_to_svr4_flag(FF_MULTICAST);
return sf;
}
int
svr4_sock_ioctl(struct file *fp, struct lwp *l, register_t *retval,
int fd, u_long cmd, void *data)
{
int error;
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int (*ctl)(struct file *, u_long, void *, struct lwp *) =
fp->f_ops->fo_ioctl;
*retval = 0;
switch (cmd) {
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case SVR4_SIOCGLIFNUM:
{
struct ifnet *ifp;
struct ifaddr *ifa;
struct svr4_lifnum lifnum;
error = copyin(data, &lifnum, sizeof(lifnum));
if (error)
return error;
lifnum.lifn_count = 0;
/* XXX: We don't pay attention to family or flags */
for (ifp = ifnet.tqh_first;
ifp != 0; ifp = ifp->if_list.tqe_next)
if ((ifa = ifp->if_addrlist.tqh_first) == NULL)
lifnum.lifn_count++;
else
for (;ifa != NULL;
ifa = ifa->ifa_list.tqe_next)
lifnum.lifn_count++;
DPRINTF(("SIOCGLIFNUM [family=%d,flags=%d,count=%d]\n",
lifnum.lifn_family, lifnum.lifn_flags,
lifnum.lifn_count));
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return copyout(&lifnum, data, sizeof(lifnum));
}
case SVR4_SIOCGIFNUM:
{
struct ifnet *ifp;
struct ifaddr *ifa;
int ifnum = 0;
/*
* This does not return the number of physical
* interfaces (if_index), but the number of interfaces
* + addresses like ifconf() does, because this number
* is used by code that will call SVR4_SIOCGIFCONF to
* find the space needed for SVR4_SIOCGIFCONF. So we
* count the number of ifreq entries that the next
* SVR4_SIOCGIFCONF will return. Maybe a more correct
* fix is to make SVR4_SIOCGIFCONF return only one
* entry per physical interface?
*/
for (ifp = ifnet.tqh_first;
ifp != 0; ifp = ifp->if_list.tqe_next)
if ((ifa = ifp->if_addrlist.tqh_first) == NULL)
ifnum++;
else
for (;ifa != NULL;
ifa = ifa->ifa_list.tqe_next)
ifnum++;
DPRINTF(("SIOCGIFNUM %d\n", ifnum));
return copyout(&ifnum, data, sizeof(ifnum));
}
case SVR4_SIOCGIFFLAGS:
{
struct oifreq br;
struct svr4_ifreq sr;
if ((error = copyin(data, &sr, sizeof(sr))) != 0)
return error;
(void) strncpy(br.ifr_name, sr.svr4_ifr_name,
sizeof(br.ifr_name));
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if ((error = (*ctl)(fp, SIOCGIFFLAGS,
(void *) &br, l)) != 0) {
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DPRINTF(("SIOCGIFFLAGS %s: error %d\n",
sr.svr4_ifr_name, error));
return error;
}
sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags);
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DPRINTF(("SIOCGIFFLAGS %s = %x\n",
sr.svr4_ifr_name, sr.svr4_ifr_flags));
return copyout(&sr, data, sizeof(sr));
}
case SVR4_SIOCGIFCONF:
{
struct svr4_ifconf sc;
if ((error = copyin(data, &sc, sizeof(sc))) != 0)
return error;
DPRINTF(("ifreq %ld svr4_ifreq %ld ifc_len %d\n",
(unsigned long)sizeof(struct oifreq),
(unsigned long)sizeof(struct svr4_ifreq),
sc.svr4_ifc_len));
if ((error = (*ctl)(fp, OOSIOCGIFCONF,
(void *) &sc, l)) != 0)
return error;
DPRINTF(("SIOCGIFCONF\n"));
return 0;
}
default:
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DPRINTF(("Unknown svr4 sockio %lx\n", cmd));
return 0; /* ENOSYS really */
}
}