sys/compat/common/uipc_syscalls_50.c

   1 /*      $NetBSD: uipc_syscalls_50.c,v 1.1.2.1 2008/11/27 20:55:31 christos Exp $        */
   2
   3 /*-
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *        This product includes software developed by the NetBSD
  21  *        Foundation, Inc. and its contributors.
  22  * 4. Neither the name of The NetBSD Foundation nor the names of its
  23  *    contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  36  * POSSIBILITY OF SUCH DAMAGE.
  37  */
  38
  39 #include <sys/cdefs.h>
  40 __KERNEL_RCSID(0, "$NetBSD: uipc_syscalls_50.c,v 1.1.2.1 2008/11/27 20:55:31 christos Exp $");
  41
  42 #include <sys/param.h>
  43 #include <sys/kernel.h>
  44 #include <sys/msg.h>
  45 #include <sys/sysctl.h>
  46 #include <sys/mount.h>
  47 #include <sys/syscallargs.h>
  48 #include <sys/errno.h>
  49 #include <sys/kauth.h>
  50 #include <sys/proc.h>
  51 #include <sys/time.h>
  52
  53 #include <net/if.h>
  54
  55 #include <compat/sys/time.h>
  56 #include <compat/sys/socket.h>
  57 #include <compat/sys/sockio.h>
  58
  59 #ifdef COMPAT_OIFDATA
  60 /*ARGSUSED*/
  61 int
  62 compat_ifdatareq(struct lwp *l, u_long cmd, void *data)
  63 {
  64         struct oifdatareq *ifdr = data;
  65         struct ifnet *ifp;
  66         int error;
  67
  68         ifp = ifunit(ifdr->ifdr_name);
  69         if (ifp == NULL)
  70                 return ENXIO;
  71
  72         switch (cmd) {
  73         case SIOCGIFDATA:
  74                 ifdatan2o(&ifdr->ifdr_data, &ifp->if_data);
  75                 return 0;
  76
  77         case SIOCZIFDATA:
  78                 if (l != NULL) {
  79                         error = kauth_authorize_network(l->l_cred,
  80                             KAUTH_NETWORK_INTERFACE,
  81                             KAUTH_REQ_NETWORK_INTERFACE_SETPRIV, ifp,
  82                             (void *)cmd, NULL);
  83                         if (error != 0)
  84                                 return error;
  85                 }
  86                 ifdatan2o(&ifdr->ifdr_data, &ifp->if_data);
  87                 /*
  88                  * Assumes that the volatile counters that can be
  89                  * zero'ed are at the end of if_data.
  90                  */
  91                 memset(&ifp->if_data.ifi_ipackets, 0, sizeof(ifp->if_data) -
  92                     offsetof(struct if_data, ifi_ipackets));
  93                 return 0;
  94
  95         default:
  96                 return EINVAL;
  97         }
  98 }
  99 #endif