sys/compat/common/if_43.c

   1 /*      $NetBSD: if_43.c,v 1.1 2008/11/14 23:10:57 ad Exp $     */
   2
   3 /*
   4  * Copyright (c) 1982, 1986, 1989, 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  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.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)uipc_syscalls.c     8.4 (Berkeley) 2/21/94
  32  */
  33
  34 #include <sys/cdefs.h>
  35 __KERNEL_RCSID(0, "$NetBSD: if_43.c,v 1.1 2008/11/14 23:10:57 ad Exp $");
  36
  37 #if defined(_KERNEL_OPT)
  38 #include "opt_compat_netbsd.h"
  39 #endif
  40
  41 #include <sys/param.h>
  42 #include <sys/systm.h>
  43 #include <sys/filedesc.h>
  44 #include <sys/kernel.h>
  45 #include <sys/proc.h>
  46 #include <sys/file.h>
  47 #include <sys/socket.h>
  48 #include <sys/socketvar.h>
  49 #include <sys/stat.h>
  50 #include <sys/ioctl.h>
  51 #include <sys/fcntl.h>
  52 #include <sys/malloc.h>
  53 #include <sys/syslog.h>
  54 #include <sys/unistd.h>
  55 #include <sys/resourcevar.h>
  56 #include <sys/mbuf.h>           /* for MLEN */
  57 #include <sys/protosw.h>
  58
  59 #include <sys/mount.h>
  60 #include <sys/syscallargs.h>
  61
  62 #include <net/if.h>
  63 #include <net/bpf.h>
  64 #include <net/route.h>
  65 #include <netinet/in.h>
  66 #include <netinet/in_systm.h>
  67 #include <netinet/ip.h>
  68 #include <net/if_gre.h>
  69 #include <net/if_atm.h>
  70 #include <net/if_tap.h>
  71 #include <net80211/ieee80211_ioctl.h>
  72 #include <netinet6/in6_var.h>
  73 #include <netinet6/nd6.h>
  74 #include <compat/sys/socket.h>
  75 #include <compat/sys/sockio.h>
  76
  77 #include <compat/common/compat_util.h>
  78
  79 #include <uvm/uvm_extern.h>
  80
  81 u_long
  82 compat_cvtcmd(u_long cmd)
  83 {
  84         u_long ncmd;
  85
  86         if (IOCPARM_LEN(cmd) != sizeof(struct oifreq))
  87                 return cmd;
  88
  89         ncmd = ((cmd) & ~(IOCPARM_MASK << IOCPARM_SHIFT)) |
  90                 (sizeof(struct ifreq) << IOCPARM_SHIFT);
  91
  92         switch (ncmd) {
  93         case BIOCGETIF:
  94         case BIOCSETIF:
  95         case GREDSOCK:
  96         case GREGADDRD:
  97         case GREGADDRS:
  98         case GREGPROTO:
  99         case GRESADDRD:
 100         case GRESADDRS:
 101         case GRESPROTO:
 102         case GRESSOCK:
 103 #ifdef COMPAT_20
 104         case OSIOCG80211STATS:
 105         case OSIOCG80211ZSTATS:
 106 #endif /* COMPAT_20 */
 107         case SIOCADDMULTI:
 108         case SIOCDELMULTI:
 109         case SIOCDIFADDR:
 110         case SIOCDIFADDR_IN6:
 111         case SIOCDIFPHYADDR:
 112         case SIOCGDEFIFACE_IN6:
 113         case SIOCG80211NWID:
 114         case SIOCG80211STATS:
 115         case SIOCG80211ZSTATS:
 116         case SIOCGIFADDR:
 117         case SIOCGIFADDR_IN6:
 118         case SIOCGIFAFLAG_IN6:
 119         case SIOCGIFALIFETIME_IN6:
 120         case SIOCGIFBRDADDR:
 121         case SIOCGIFDLT:
 122         case SIOCGIFDSTADDR:
 123         case SIOCGIFDSTADDR_IN6:
 124         case SIOCGIFFLAGS:
 125         case SIOCGIFGENERIC:
 126         case SIOCGIFMETRIC:
 127         case SIOCGIFMTU:
 128         case SIOCGIFNETMASK:
 129         case SIOCGIFNETMASK_IN6:
 130         case SIOCGIFPDSTADDR:
 131         case SIOCGIFPDSTADDR_IN6:
 132         case SIOCGIFPSRCADDR:
 133         case SIOCGIFPSRCADDR_IN6:
 134         case SIOCGIFSTAT_ICMP6:
 135         case SIOCGIFSTAT_IN6:
 136         case SIOCGPVCSIF:
 137         case SIOCGVH:
 138         case SIOCIFCREATE:
 139         case SIOCIFDESTROY:
 140         case SIOCS80211NWID:
 141         case SIOCSDEFIFACE_IN6:
 142         case SIOCSIFADDR:
 143         case SIOCSIFADDR_IN6:
 144         case SIOCSIFBRDADDR:
 145         case SIOCSIFDSTADDR:
 146         case SIOCSIFDSTADDR_IN6:
 147         case SIOCSIFFLAGS:
 148         case SIOCSIFGENERIC:
 149         case SIOCSIFMEDIA:
 150         case SIOCSIFMETRIC:
 151         case SIOCSIFMTU:
 152         case SIOCSIFNETMASK:
 153         case SIOCSIFNETMASK_IN6:
 154         case SIOCSNDFLUSH_IN6:
 155         case SIOCSPFXFLUSH_IN6:
 156         case SIOCSPVCSIF:
 157         case SIOCSRTRFLUSH_IN6:
 158         case SIOCSVH:
 159         case TAPGIFNAME:
 160                 return ncmd;
 161         }
 162         return cmd;
 163 }
 164
 165 int
 166 compat_ifioctl(struct socket *so, u_long ocmd, u_long cmd, void *data,
 167     struct lwp *l)
 168 {
 169         int error;
 170         struct ifreq *ifr = data;
 171         struct ifnet *ifp = ifunit(ifr->ifr_name);
 172         struct sockaddr *sa;
 173
 174         if (ifp == NULL)
 175                 return ENXIO;
 176
 177         switch (ocmd) {
 178         case OSIOCSIFADDR:
 179         case OSIOCSIFDSTADDR:
 180         case OSIOCSIFBRDADDR:
 181         case OSIOCSIFNETMASK:
 182                 sa = &ifr->ifr_addr;
 183 #if BYTE_ORDER != BIG_ENDIAN
 184                 if (sa->sa_family == 0 && sa->sa_len < 16) {
 185                         sa->sa_family = sa->sa_len;
 186                         sa->sa_len = 16;
 187                 }
 188 #else
 189                 if (sa->sa_len == 0)
 190                         sa->sa_len = 16;
 191 #endif
 192                 break;
 193
 194         case OOSIOCGIFADDR:
 195                 cmd = SIOCGIFADDR;
 196                 break;
 197
 198         case OOSIOCGIFDSTADDR:
 199                 cmd = SIOCGIFDSTADDR;
 200                 break;
 201
 202         case OOSIOCGIFBRDADDR:
 203                 cmd = SIOCGIFBRDADDR;
 204                 break;
 205
 206         case OOSIOCGIFNETMASK:
 207                 cmd = SIOCGIFNETMASK;
 208         }
 209
 210         error = (*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
 211             (struct mbuf *)cmd, (struct mbuf *)ifr, (struct mbuf *)ifp, l);
 212
 213         switch (ocmd) {
 214         case OOSIOCGIFADDR:
 215         case OOSIOCGIFDSTADDR:
 216         case OOSIOCGIFBRDADDR:
 217         case OOSIOCGIFNETMASK:
 218                 *(u_int16_t *)&ifr->ifr_addr =
 219                     ((struct sockaddr *)&ifr->ifr_addr)->sa_family;
 220         }
 221         return error;
 222 }