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  * $DragonFly: src/sys/emulation/svr4/Attic/svr4_sockio.c,v 1.6 2003/09/12 00:43:30 daver Exp $
  30  */
  31
  32 #include <sys/param.h>
  33 #include <sys/proc.h>
  34 #include <sys/systm.h>
  35 #include <sys/file.h>
  36 #include <sys/filedesc.h>
  37 #include <sys/sockio.h>
  38 #include <sys/socket.h>
  39 #include <net/if.h>
  40 #include <sys/file2.h>
  41
  42 #include <emulation/43bsd/43bsd_socket.h>
  43
  44 #include "svr4.h"
  45 #include "svr4_util.h"
  46 #include "svr4_ioctl.h"
  47 #include "svr4_sockio.h"
  48
  49 static int bsd_to_svr4_flags (int);
  50
  51 #define bsd_to_svr4_flag(a) \
  52         if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a)
  53
  54 static int
  55 bsd_to_svr4_flags(bf)
  56         int bf;
  57 {
  58         int sf = 0;
  59         bsd_to_svr4_flag(FF_UP);
  60         bsd_to_svr4_flag(FF_BROADCAST);
  61         bsd_to_svr4_flag(FF_DEBUG);
  62         bsd_to_svr4_flag(FF_LOOPBACK);
  63         bsd_to_svr4_flag(FF_POINTOPOINT);
  64 #if defined(IFF_NOTRAILERS)
  65         bsd_to_svr4_flag(FF_NOTRAILERS);
  66 #endif
  67         bsd_to_svr4_flag(FF_RUNNING);
  68         bsd_to_svr4_flag(FF_NOARP);
  69         bsd_to_svr4_flag(FF_PROMISC);
  70         bsd_to_svr4_flag(FF_ALLMULTI);
  71         bsd_to_svr4_flag(FF_MULTICAST);
  72         return sf;
  73 }
  74
  75 int
  76 svr4_sock_ioctl(fp, td, retval, fd, cmd, data)
  77         struct file *fp;
  78         struct thread *td;
  79         register_t *retval;
  80         int fd;
  81         u_long cmd;
  82         caddr_t data;
  83 {
  84         int error;
  85
  86         *retval = 0;
  87
  88         switch (cmd) {
  89         case SVR4_SIOCGIFNUM:
  90                 {
  91                         struct ifnet *ifp;
  92                         struct ifaddr *ifa;
  93                         int ifnum = 0;
  94
  95                         /*
  96                          * This does not return the number of physical
  97                          * interfaces (if_index), but the number of interfaces
  98                          * + addresses like ifconf() does, because this number
  99                          * is used by code that will call SVR4_SIOCGIFCONF to
 100                          * find the space needed for SVR4_SIOCGIFCONF. So we
 101                          * count the number of ifreq entries that the next
 102                          * SVR4_SIOCGIFCONF will return. Maybe a more correct
 103                          * fix is to make SVR4_SIOCGIFCONF return only one
 104                          * entry per physical interface?
 105                          */
 106
 107                         for (ifp = ifnet.tqh_first;
 108                              ifp != 0; ifp = ifp->if_link.tqe_next)
 109                                 if ((ifa = ifp->if_addrhead.tqh_first) == NULL)
 110                                         ifnum++;
 111                                 else
 112                                         for (;ifa != NULL;
 113                                             ifa = ifa->ifa_link.tqe_next)
 114                                                 ifnum++;
 115
 116
 117                         DPRINTF(("SIOCGIFNUM %d\n", ifnum));
 118                         return copyout(&ifnum, data, sizeof(ifnum));
 119                 }
 120
 121         case SVR4_SIOCGIFFLAGS:
 122                 {
 123                         struct ifreq br;
 124                         struct svr4_ifreq sr;
 125
 126                         if ((error = copyin(data, &sr, sizeof(sr))) != 0)
 127                                 return error;
 128
 129                         (void) strncpy(br.ifr_name, sr.svr4_ifr_name,
 130                             sizeof(br.ifr_name));
 131                         if ((error = fo_ioctl(fp, SIOCGIFFLAGS,
 132                                             (caddr_t) &br, td)) != 0) {
 133                                 DPRINTF(("SIOCGIFFLAGS (%s) %s: error %d\n",
 134                                          br.ifr_name, sr.svr4_ifr_name, error));
 135                                 return error;
 136                         }
 137
 138                         sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags);
 139                         DPRINTF(("SIOCGIFFLAGS %s = %x\n",
 140                                 sr.svr4_ifr_name, sr.svr4_ifr_flags));
 141                         return copyout(&sr, data, sizeof(sr));
 142                 }
 143
 144         case SVR4_SIOCGIFCONF:
 145                 {
 146                         struct svr4_ifconf sc;
 147
 148                         if ((error = copyin(data, &sc, sizeof(sc))) != 0)
 149                                 return error;
 150
 151                         DPRINTF(("ifreq %d svr4_ifreq %d ifc_len %d\n",
 152                                 sizeof(struct ifreq), sizeof(struct svr4_ifreq),
 153                                 sc.svr4_ifc_len));
 154
 155                         if ((error = fo_ioctl(fp, OSIOCGIFCONF,
 156                                             (caddr_t) &sc, td)) != 0)
 157                                 return error;
 158
 159                         DPRINTF(("SIOCGIFCONF\n"));
 160                         return 0;
 161                 }
 162
 163
 164         default:
 165                 DPRINTF(("Unknown svr4 sockio %lx\n", cmd));
 166                 return 0;       /* ENOSYS really */
 167         }
 168 }