svr4_32_sockio.c

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    1 /*      $NetBSD: svr4_32_sockio.c,v 1.21 2008/04/28 20:23:46 martin Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 1995, 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  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __KERNEL_RCSID(0, "$NetBSD: svr4_32_sockio.c,v 1.21 2008/04/28 20:23:46 martin Exp $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/proc.h>
   37 #include <sys/systm.h>
   38 #include <sys/file.h>
   39 #include <sys/filedesc.h>
   40 #include <sys/ioctl.h>
   41 #include <sys/termios.h>
   42 #include <sys/tty.h>
   43 #include <sys/socket.h>
   44 #include <sys/mount.h>
   45 #include <net/if.h>
   46 #include <sys/malloc.h>
   47 
   48 #include <sys/syscallargs.h>
   49 
   50 #include <compat/sys/socket.h>
   51 #include <compat/sys/sockio.h>
   52 
   53 #include <compat/svr4_32/svr4_32_types.h>
   54 #include <compat/svr4_32/svr4_32_util.h>
   55 #include <compat/svr4_32/svr4_32_signal.h>
   56 #include <compat/svr4_32/svr4_32_lwp.h>
   57 #include <compat/svr4_32/svr4_32_ucontext.h>
   58 #include <compat/svr4_32/svr4_32_syscallargs.h>
   59 #include <compat/svr4_32/svr4_32_stropts.h>
   60 #include <compat/svr4_32/svr4_32_ioctl.h>
   61 #include <compat/svr4_32/svr4_32_sockio.h>
   62 
   63 static int bsd_to_svr4_flags(int);
   64 
   65 #define bsd_to_svr4_flag(a) \
   66         if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a)
   67 
   68 static int
   69 bsd_to_svr4_flags(int bf)
   70 {
   71         int sf = 0;
   72         bsd_to_svr4_flag(FF_UP);
   73         bsd_to_svr4_flag(FF_BROADCAST);
   74         bsd_to_svr4_flag(FF_DEBUG);
   75         bsd_to_svr4_flag(FF_LOOPBACK);
   76         bsd_to_svr4_flag(FF_POINTOPOINT);
   77         bsd_to_svr4_flag(FF_NOTRAILERS);
   78         bsd_to_svr4_flag(FF_RUNNING);
   79         bsd_to_svr4_flag(FF_NOARP);
   80         bsd_to_svr4_flag(FF_PROMISC);
   81         bsd_to_svr4_flag(FF_ALLMULTI);
   82         bsd_to_svr4_flag(FF_MULTICAST);
   83         return sf;
   84 }
   85 
   86 int
   87 svr4_32_sock_ioctl(file_t *fp, struct lwp *l, register_t *retval, int fd, u_long cmd, void *data)
   88 {
   89         int error;
   90         int (*ctl)(file_t *, u_long, void *) = fp->f_ops->fo_ioctl;
   91 
   92         *retval = 0;
   93 
   94         switch (cmd) {
   95         case SVR4_SIOCGIFNUM:
   96                 {
   97                         struct ifnet *ifp;
   98                         int ifnum = 0;
   99 
  100                         /*
  101                          * This does not return the number of physical
  102                          * interfaces (if_index), but the number of interfaces
  103                          * + addresses like ifconf() does, because this number
  104                          * is used by code that will call SVR4_SIOCGIFCONF to
  105                          * find the space needed for SVR4_SIOCGIFCONF. So we
  106                          * count the number of ifreq entries that the next
  107                          * SVR4_SIOCGIFCONF will return. Maybe a more correct
  108                          * fix is to make SVR4_SIOCGIFCONF return only one
  109                          * entry per physical interface?
  110                          */
  111 
  112                         IFNET_FOREACH(ifp)
  113                                 ifnum += svr4_count_ifnum(ifp)
  114 
  115                         DPRINTF(("SIOCGIFNUM %d\n", ifnum));
  116                         return copyout(&ifnum, data, sizeof(ifnum));
  117                 }
  118 
  119         case SVR4_32_SIOCGIFFLAGS:
  120                 {
  121                         struct oifreq br;
  122                         struct svr4_32_ifreq sr;
  123 
  124                         if ((error = copyin(data, &sr, sizeof(sr))) != 0)
  125                                 return error;
  126 
  127                         (void) strncpy(br.ifr_name, sr.svr4_ifr_name,
  128                             sizeof(br.ifr_name));
  129 
  130                         if ((error = (*ctl)(fp, SIOCGIFFLAGS, &br)) != 0) {
  131                                 DPRINTF(("SIOCGIFFLAGS %s: error %d\n",
  132                                          sr.svr4_ifr_name, error));
  133                                 return error;
  134                         }
  135 
  136                         sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags);
  137                         DPRINTF(("SIOCGIFFLAGS %s = %x\n",
  138                                 sr.svr4_ifr_name, sr.svr4_ifr_flags));
  139                         return copyout(&sr, data, sizeof(sr));
  140                 }
  141 
  142         case SVR4_32_SIOCGIFCONF:
  143                 {
  144                         struct svr4_32_ifconf sc;
  145                         struct oifconf ifc;
  146 
  147                         if ((error = copyin(data, &sc, sizeof(sc))) != 0)
  148                                 return error;
  149 
  150                         DPRINTF(("ifreq %ld svr4_32_ifreq %ld ifc_len %d\n",
  151                                 (unsigned long)sizeof(struct oifreq),
  152                                 (unsigned long)sizeof(struct svr4_32_ifreq),
  153                                 sc.svr4_32_ifc_len));
  154 
  155                         ifc.ifc_len = sc.svr4_32_ifc_len;
  156                         ifc.ifc_buf = NETBSD32PTR64(sc.ifc_ifcu.ifcu_buf);
  157 
  158                         if ((error = (*ctl)(fp, OOSIOCGIFCONF, &ifc)) != 0)
  159                                 return error;
  160 
  161                         DPRINTF(("SIOCGIFCONF\n"));
  162                         return 0;
  163                 }
  164 
  165 
  166         default:
  167                 DPRINTF(("Unknown svr4_32 sockio %lx\n", cmd));
  168                 return 0;       /* ENOSYS really */
  169         }
  170 }

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FreeBSD/Linux Kernel Cross Reference sys/compat/svr4_32/svr4_32_sockio.c

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sys/compat/svr4_32/svr4_32_sockio.c