granicus.if.org Git - strace/blob - sock.c

   1 /*
   2  * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  *      $Id$
  28  */
  29
  30 #include "defs.h"
  31
  32 #ifdef LINUX
  33 #include <sys/socket.h>
  34 #include <linux/sockios.h>
  35 #else
  36 #include <sys/socket.h>
  37 #include <sys/sockio.h>
  38 #endif
  39 #include <arpa/inet.h>
  40
  41 #if defined (ALPHA) || defined(SH) || defined(SH64)
  42 #ifdef HAVE_SYS_IOCTL_H
  43 #include <sys/ioctl.h>
  44 #elif defined(HAVE_IOCTLS_H)
  45 #include <ioctls.h>
  46 #endif
  47 #endif
  48 #include <net/if.h>
  49
  50 extern const struct xlat addrfams[];
  51
  52 static const struct xlat iffflags[] = {
  53         { IFF_UP,               "IFF_UP"                },
  54         { IFF_BROADCAST,        "IFF_BROADCAST"         },
  55         { IFF_DEBUG,            "IFF_DEBUG"             },
  56         { IFF_LOOPBACK,         "IFF_LOOPBACK"          },
  57         { IFF_POINTOPOINT,      "IFF_POINTOPOINT"       },
  58         { IFF_NOTRAILERS,       "IFF_NOTRAILERS"        },
  59         { IFF_RUNNING,          "IFF_RUNNING"           },
  60         { IFF_NOARP,            "IFF_NOARP"             },
  61         { IFF_PROMISC,          "IFF_PROMISC"           },
  62         { IFF_ALLMULTI,         "IFF_ALLMULTI"          },
  63         { IFF_MASTER,           "IFF_MASTER"            },
  64         { IFF_SLAVE,            "IFF_SLAVE"             },
  65         { IFF_MULTICAST,        "IFF_MULTICAST"         },
  66         { IFF_PORTSEL,          "IFF_PORTSEL"           },
  67         { IFF_AUTOMEDIA,        "IFF_AUTOMEDIA"         },
  68         { 0,                    NULL                    }
  69 };
  70
  71
  72 static void
  73 print_addr(tcp, addr, ifr)
  74 struct tcb *tcp;
  75 long addr;
  76 struct ifreq *ifr;
  77 {
  78         if (ifr->ifr_addr.sa_family == AF_INET) {
  79                 struct sockaddr_in *sinp;
  80                 sinp = (struct sockaddr_in *) &ifr->ifr_addr;
  81                 tprintf("inet_addr(\"%s\")", inet_ntoa(sinp->sin_addr));
  82         } else
  83                 printstr(tcp, addr, sizeof(ifr->ifr_addr.sa_data));
  84 }
  85
  86 int
  87 sock_ioctl(tcp, code, arg)
  88 struct tcb *tcp;
  89 long code, arg;
  90 {
  91         struct ifreq ifr;
  92         struct ifconf ifc;
  93         const char *str = NULL;
  94         unsigned char *bytes;
  95
  96         if (entering(tcp)) {
  97                 if (code == SIOCGIFCONF) {
  98                         umove(tcp, tcp->u_arg[2], &ifc);
  99                         if (ifc.ifc_buf == NULL)
 100                                 tprintf(", {%d -> ", ifc.ifc_len);
 101                         else
 102                                 tprintf(", {");
 103                 }
 104                 return 0;
 105         }
 106
 107         switch (code) {
 108 #ifdef SIOCSHIWAT
 109         case SIOCSHIWAT:
 110 #endif
 111 #ifdef SIOCGHIWAT
 112         case SIOCGHIWAT:
 113 #endif
 114 #ifdef SIOCSLOWAT
 115         case SIOCSLOWAT:
 116 #endif
 117 #ifdef SIOCGLOWAT
 118         case SIOCGLOWAT:
 119 #endif
 120 #ifdef FIOSETOWN
 121         case FIOSETOWN:
 122 #endif
 123 #ifdef FIOGETOWN
 124         case FIOGETOWN:
 125 #endif
 126 #ifdef SIOCSPGRP
 127         case SIOCSPGRP:
 128 #endif
 129 #ifdef SIOCGPGRP
 130         case SIOCGPGRP:
 131 #endif
 132 #ifdef SIOCATMARK
 133         case SIOCATMARK:
 134 #endif
 135                 printnum(tcp, arg, ", %#d");
 136                 return 1;
 137 #ifdef LINUX
 138         case SIOCGIFNAME:
 139         case SIOCGIFINDEX:
 140         case SIOCGIFADDR:
 141         case SIOCGIFDSTADDR:
 142         case SIOCGIFBRDADDR:
 143         case SIOCGIFNETMASK:
 144         case SIOCGIFFLAGS:
 145         case SIOCGIFMETRIC:
 146         case SIOCGIFMTU:
 147         case SIOCGIFSLAVE:
 148         case SIOCGIFHWADDR:
 149                 umove(tcp, tcp->u_arg[2], &ifr);
 150                 if (syserror(tcp)) {
 151                         if (code == SIOCGIFNAME)
 152                                 tprintf(", {ifr_index=%d, ifr_name=???}", ifr.ifr_ifindex);
 153                         else
 154                                 tprintf(", {ifr_name=\"%s\", ???}", ifr.ifr_name);
 155                 } else if (code == SIOCGIFNAME)
 156                         tprintf(", {ifr_index=%d, ifr_name=\"%s\"}",
 157                                 ifr.ifr_ifindex, ifr.ifr_name);
 158                 else {
 159                         tprintf(", {ifr_name=\"%s\", ", ifr.ifr_name);
 160                         switch (code) {
 161                         case SIOCGIFINDEX:
 162                                 tprintf("ifr_index=%d", ifr.ifr_ifindex);
 163                                 break;
 164                         case SIOCGIFADDR:
 165                                 str = "ifr_addr";
 166                         case SIOCGIFDSTADDR:
 167                                 if (str == NULL)
 168                                         str = "ifr_dstaddr";
 169                         case SIOCGIFBRDADDR:
 170                                 if (str == NULL)
 171                                         str = "ifr_broadaddr";
 172                         case SIOCGIFNETMASK:
 173                                 if (str == NULL)
 174                                         str = "ifr_netmask";
 175                                 tprintf("%s={", str);
 176                                 printxval(addrfams,
 177                                           ifr.ifr_addr.sa_family,
 178                                           "AF_???");
 179                                 tprintf(", ");
 180                                 print_addr(tcp, ((long) tcp->u_arg[2]
 181                                                  + offsetof (struct ifreq,
 182                                                              ifr_addr.sa_data)),
 183                                            &ifr);
 184                                 tprintf("}");
 185                                 break;
 186                         case SIOCGIFHWADDR:
 187                                 /* XXX Are there other hardware addresses
 188                                    than 6-byte MACs?  */
 189                                 bytes = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
 190                                 tprintf("ifr_hwaddr=%02x:%02x:%02x:%02x:%02x:%02x",
 191                                         bytes[0], bytes[1], bytes[2],
 192                                         bytes[3], bytes[4], bytes[5]);
 193                                 break;
 194                         case SIOCGIFFLAGS:
 195                                 tprintf("ifr_flags=");
 196                                 printflags(iffflags, ifr.ifr_flags);
 197                                 break;
 198                         case SIOCGIFMETRIC:
 199                                 tprintf("ifr_metric=%d", ifr.ifr_metric);
 200                                 break;
 201                         case SIOCGIFMTU:
 202                                 tprintf("ifr_mtu=%d", ifr.ifr_mtu);
 203                                 break;
 204                         case SIOCGIFSLAVE:
 205                                 tprintf("ifr_slave=\"%s\"", ifr.ifr_slave);
 206                                 break;
 207                         }
 208                         tprintf("}");
 209                 }
 210                 return 1;
 211         case SIOCGIFCONF:
 212                 umove(tcp, tcp->u_arg[2], &ifc);
 213                 tprintf("%d, ", ifc.ifc_len);
 214                 if (syserror(tcp)) {
 215                         tprintf("%lx", (unsigned long) ifc.ifc_buf);
 216                 } else if (ifc.ifc_buf == NULL) {
 217                         tprintf("NULL");
 218                 } else {
 219                         int i;
 220                         unsigned nifra = ifc.ifc_len / sizeof(struct ifreq);
 221                         struct ifreq ifra[nifra];
 222                         umoven(tcp, (unsigned long) ifc.ifc_buf, sizeof(ifra),
 223                                (char *) ifra);
 224                         tprintf("{");
 225                         for (i = 0; i < nifra; ++i ) {
 226                                 if (i > 0)
 227                                         tprintf(", ");
 228                                 tprintf("{\"%s\", {",
 229                                         ifra[i].ifr_name);
 230                                 if (verbose(tcp)) {
 231                                         printxval(addrfams,
 232                                                   ifra[i].ifr_addr.sa_family,
 233                                                   "AF_???");
 234                                         tprintf(", ");
 235                                         print_addr(tcp, ((long) tcp->u_arg[2]
 236                                                          + offsetof (struct ifreq,
 237                                                                      ifr_addr.sa_data)
 238                                                          + ((char *) &ifra[i]
 239                                                             - (char *) &ifra[0])),
 240                                                    &ifra[i]);
 241                                 } else
 242                                         tprintf("...");
 243                                 tprintf("}}");
 244                         }
 245                         tprintf("}");
 246                 }
 247                 tprintf("}");
 248                 return 1;
 249 #endif
 250         default:
 251                 return 0;
 252         }
 253 }