sys/emulation/svr4/svr4_sockio.c

   1 /*
   2  * Copyright (c) 1998 Mark Newton
   3  * Copyright (c) 1995 Christos Zoulas
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  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
  16  *
  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.
  27  *
  28  * $FreeBSD: src/sys/svr4/svr4_sockio.c,v 1.7 1999/12/08 12:00:48 newton Exp $
  29  */
  30
  31 #include <sys/param.h>
  32 #include <sys/proc.h>
  33 #include <sys/systm.h>
  34 #include <sys/file.h>
  35 #include <sys/filedesc.h>
  36 #include <sys/sockio.h>
  37 #include <sys/socket.h>
  38 #include <net/if.h>
  39
  40
  41 #include <svr4/svr4.h>
  42 #include <svr4/svr4_util.h>
  43 #include <svr4/svr4_ioctl.h>
  44 #include <svr4/svr4_sockio.h>
  45
  46 static int bsd_to_svr4_flags __P((int));
  47
  48 #define bsd_to_svr4_flag(a) \
  49         if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a)
  50
  51 static int
  52 bsd_to_svr4_flags(bf)
  53         int bf;
  54 {
  55         int sf = 0;
  56         bsd_to_svr4_flag(FF_UP);
  57         bsd_to_svr4_flag(FF_BROADCAST);
  58         bsd_to_svr4_flag(FF_DEBUG);
  59         bsd_to_svr4_flag(FF_LOOPBACK);
  60         bsd_to_svr4_flag(FF_POINTOPOINT);
  61 #if defined(IFF_NOTRAILERS)
  62         bsd_to_svr4_flag(FF_NOTRAILERS);
  63 #endif
  64         bsd_to_svr4_flag(FF_RUNNING);
  65         bsd_to_svr4_flag(FF_NOARP);
  66         bsd_to_svr4_flag(FF_PROMISC);
  67         bsd_to_svr4_flag(FF_ALLMULTI);
  68         bsd_to_svr4_flag(FF_MULTICAST);
  69         return sf;
  70 }
  71
  72 int
  73 svr4_sock_ioctl(fp, p, retval, fd, cmd, data)
  74         struct file *fp;
  75         struct proc *p;
  76         register_t *retval;
  77         int fd;
  78         u_long cmd;
  79         caddr_t data;
  80 {
  81         int error;
  82
  83         *retval = 0;
  84
  85         switch (cmd) {
  86         case SVR4_SIOCGIFNUM:
  87                 {
  88                         struct ifnet *ifp;
  89                         struct ifaddr *ifa;
  90                         int ifnum = 0;
  91
  92                         /*
  93                          * This does not return the number of physical
  94                          * interfaces (if_index), but the number of interfaces
  95                          * + addresses like ifconf() does, because this number
  96                          * is used by code that will call SVR4_SIOCGIFCONF to
  97                          * find the space needed for SVR4_SIOCGIFCONF. So we
  98                          * count the number of ifreq entries that the next
  99                          * SVR4_SIOCGIFCONF will return. Maybe a more correct
 100                          * fix is to make SVR4_SIOCGIFCONF return only one
 101                          * entry per physical interface?
 102                          */
 103
 104                         for (ifp = ifnet.tqh_first;
 105                              ifp != 0; ifp = ifp->if_link.tqe_next)
 106                                 if ((ifa = ifp->if_addrhead.tqh_first) == NULL)
 107                                         ifnum++;
 108                                 else
 109                                         for (;ifa != NULL;
 110                                             ifa = ifa->ifa_link.tqe_next)
 111                                                 ifnum++;
 112
 113
 114                         DPRINTF(("SIOCGIFNUM %d\n", ifnum));
 115                         return copyout(&ifnum, data, sizeof(ifnum));
 116                 }
 117
 118         case SVR4_SIOCGIFFLAGS:
 119                 {
 120                         struct ifreq br;
 121                         struct svr4_ifreq sr;
 122
 123                         if ((error = copyin(data, &sr, sizeof(sr))) != 0)
 124                                 return error;
 125
 126                         (void) strncpy(br.ifr_name, sr.svr4_ifr_name,
 127                             sizeof(br.ifr_name));
 128                         if ((error = fo_ioctl(fp, SIOCGIFFLAGS,
 129                                             (caddr_t) &br, p)) != 0) {
 130                                 DPRINTF(("SIOCGIFFLAGS (%s) %s: error %d\n",
 131                                          br.ifr_name, sr.svr4_ifr_name, error));
 132                                 return error;
 133                         }
 134
 135                         sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags);
 136                         DPRINTF(("SIOCGIFFLAGS %s = %x\n",
 137                                 sr.svr4_ifr_name, sr.svr4_ifr_flags));
 138                         return copyout(&sr, data, sizeof(sr));
 139                 }
 140
 141         case SVR4_SIOCGIFCONF:
 142                 {
 143                         struct svr4_ifconf sc;
 144
 145                         if ((error = copyin(data, &sc, sizeof(sc))) != 0)
 146                                 return error;
 147
 148                         DPRINTF(("ifreq %d svr4_ifreq %d ifc_len %d\n",
 149                                 sizeof(struct ifreq), sizeof(struct svr4_ifreq),
 150                                 sc.svr4_ifc_len));
 151
 152                         if ((error = fo_ioctl(fp, OSIOCGIFCONF,
 153                                             (caddr_t) &sc, p)) != 0)
 154                                 return error;
 155
 156                         DPRINTF(("SIOCGIFCONF\n"));
 157                         return 0;
 158                 }
 159
 160
 161         default:
 162                 DPRINTF(("Unknown svr4 sockio %lx\n", cmd));
 163                 return 0;       /* ENOSYS really */
 164         }
 165 }