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 static const struct xlat iffflags[] = {
  51         { IFF_UP,               "IFF_UP"                },
  52         { IFF_BROADCAST,        "IFF_BROADCAST"         },
  53         { IFF_DEBUG,            "IFF_DEBUG"             },
  54         { IFF_LOOPBACK,         "IFF_LOOPBACK"          },
  55         { IFF_POINTOPOINT,      "IFF_POINTOPOINT"       },
  56         { IFF_NOTRAILERS,       "IFF_NOTRAILERS"        },
  57         { IFF_RUNNING,          "IFF_RUNNING"           },
  58         { IFF_NOARP,            "IFF_NOARP"             },
  59         { IFF_PROMISC,          "IFF_PROMISC"           },
  60         { IFF_ALLMULTI,         "IFF_ALLMULTI"          },
  61         { IFF_MASTER,           "IFF_MASTER"            },
  62         { IFF_SLAVE,            "IFF_SLAVE"             },
  63         { IFF_MULTICAST,        "IFF_MULTICAST"         },
  64         { IFF_PORTSEL,          "IFF_PORTSEL"           },
  65         { IFF_AUTOMEDIA,        "IFF_AUTOMEDIA"         },
  66         { 0,                    NULL                    }
  67 };
  68
  69
  70 static void
  71 print_addr(struct tcb *tcp, long addr, struct ifreq *ifr)
  72 {
  73         if (ifr->ifr_addr.sa_family == AF_INET) {
  74                 struct sockaddr_in *sinp;
  75                 sinp = (struct sockaddr_in *) &ifr->ifr_addr;
  76                 tprintf("inet_addr(\"%s\")", inet_ntoa(sinp->sin_addr));
  77         } else
  78                 printstr(tcp, addr, sizeof(ifr->ifr_addr.sa_data));
  79 }
  80
  81 int
  82 sock_ioctl(struct tcb *tcp, long code, long arg)
  83 {
  84         struct ifreq ifr;
  85         struct ifconf ifc;
  86         const char *str = NULL;
  87         unsigned char *bytes;
  88
  89         if (entering(tcp)) {
  90                 if (code == SIOCGIFCONF) {
  91                         if (umove(tcp, tcp->u_arg[2], &ifc) >= 0
  92                             && ifc.ifc_buf == NULL)
  93                                 tprintf(", {%d -> ", ifc.ifc_len);
  94                         else
  95                                 tprints(", {");
  96                 }
  97                 return 0;
  98         }
  99
 100         switch (code) {
 101 #ifdef SIOCSHIWAT
 102         case SIOCSHIWAT:
 103 #endif
 104 #ifdef SIOCGHIWAT
 105         case SIOCGHIWAT:
 106 #endif
 107 #ifdef SIOCSLOWAT
 108         case SIOCSLOWAT:
 109 #endif
 110 #ifdef SIOCGLOWAT
 111         case SIOCGLOWAT:
 112 #endif
 113 #ifdef FIOSETOWN
 114         case FIOSETOWN:
 115 #endif
 116 #ifdef FIOGETOWN
 117         case FIOGETOWN:
 118 #endif
 119 #ifdef SIOCSPGRP
 120         case SIOCSPGRP:
 121 #endif
 122 #ifdef SIOCGPGRP
 123         case SIOCGPGRP:
 124 #endif
 125 #ifdef SIOCATMARK
 126         case SIOCATMARK:
 127 #endif
 128                 printnum(tcp, arg, ", %#d");
 129                 return 1;
 130 #ifdef LINUX
 131         case SIOCGIFNAME:
 132         case SIOCSIFNAME:
 133         case SIOCGIFINDEX:
 134         case SIOCGIFADDR:
 135         case SIOCSIFADDR:
 136         case SIOCGIFDSTADDR:
 137         case SIOCSIFDSTADDR:
 138         case SIOCGIFBRDADDR:
 139         case SIOCSIFBRDADDR:
 140         case SIOCGIFNETMASK:
 141         case SIOCSIFNETMASK:
 142         case SIOCGIFFLAGS:
 143         case SIOCSIFFLAGS:
 144         case SIOCGIFMETRIC:
 145         case SIOCSIFMETRIC:
 146         case SIOCGIFMTU:
 147         case SIOCSIFMTU:
 148         case SIOCGIFSLAVE:
 149         case SIOCSIFSLAVE:
 150         case SIOCGIFHWADDR:
 151         case SIOCSIFHWADDR:
 152         case SIOCGIFTXQLEN:
 153         case SIOCSIFTXQLEN:
 154         case SIOCGIFMAP:
 155         case SIOCSIFMAP:
 156                 if (umove(tcp, tcp->u_arg[2], &ifr) < 0)
 157                         tprintf(", %#lx", tcp->u_arg[2]);
 158                 else if (syserror(tcp)) {
 159                         if (code == SIOCGIFNAME || code == SIOCSIFNAME)
 160                                 tprintf(", {ifr_index=%d, ifr_name=???}", ifr.ifr_ifindex);
 161                         else
 162                                 tprintf(", {ifr_name=\"%s\", ???}", ifr.ifr_name);
 163                 } else if (code == SIOCGIFNAME || code == SIOCSIFNAME)
 164                         tprintf(", {ifr_index=%d, ifr_name=\"%s\"}",
 165                                 ifr.ifr_ifindex, ifr.ifr_name);
 166                 else {
 167                         tprintf(", {ifr_name=\"%s\", ", ifr.ifr_name);
 168                         switch (code) {
 169                         case SIOCGIFINDEX:
 170                                 tprintf("ifr_index=%d", ifr.ifr_ifindex);
 171                                 break;
 172                         case SIOCGIFADDR:
 173                         case SIOCSIFADDR:
 174                                 str = "ifr_addr";
 175                         case SIOCGIFDSTADDR:
 176                         case SIOCSIFDSTADDR:
 177                                 if (!str)
 178                                         str = "ifr_dstaddr";
 179                         case SIOCGIFBRDADDR:
 180                         case SIOCSIFBRDADDR:
 181                                 if (!str)
 182                                         str = "ifr_broadaddr";
 183                         case SIOCGIFNETMASK:
 184                         case SIOCSIFNETMASK:
 185                                 if (!str)
 186                                         str = "ifr_netmask";
 187                                 tprintf("%s={", str);
 188                                 printxval(addrfams,
 189                                           ifr.ifr_addr.sa_family,
 190                                           "AF_???");
 191                                 tprints(", ");
 192                                 print_addr(tcp, ((long) tcp->u_arg[2]
 193                                                  + offsetof(struct ifreq,
 194                                                              ifr_addr.sa_data)),
 195                                            &ifr);
 196                                 tprints("}");
 197                                 break;
 198                         case SIOCGIFHWADDR:
 199                         case SIOCSIFHWADDR:
 200                                 /* XXX Are there other hardware addresses
 201                                    than 6-byte MACs?  */
 202                                 bytes = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
 203                                 tprintf("ifr_hwaddr=%02x:%02x:%02x:%02x:%02x:%02x",
 204                                         bytes[0], bytes[1], bytes[2],
 205                                         bytes[3], bytes[4], bytes[5]);
 206                                 break;
 207                         case SIOCGIFFLAGS:
 208                         case SIOCSIFFLAGS:
 209                                 tprints("ifr_flags=");
 210                                 printflags(iffflags, ifr.ifr_flags, "IFF_???");
 211                                 break;
 212                         case SIOCGIFMETRIC:
 213                         case SIOCSIFMETRIC:
 214                                 tprintf("ifr_metric=%d", ifr.ifr_metric);
 215                                 break;
 216                         case SIOCGIFMTU:
 217                         case SIOCSIFMTU:
 218                                 tprintf("ifr_mtu=%d", ifr.ifr_mtu);
 219                                 break;
 220                         case SIOCGIFSLAVE:
 221                         case SIOCSIFSLAVE:
 222                                 tprintf("ifr_slave=\"%s\"", ifr.ifr_slave);
 223                                 break;
 224                         case SIOCGIFTXQLEN:
 225                         case SIOCSIFTXQLEN:
 226                                 tprintf("ifr_qlen=%d", ifr.ifr_qlen);
 227                                 break;
 228                         case SIOCGIFMAP:
 229                         case SIOCSIFMAP:
 230                                 tprintf("ifr_map={mem_start=%#lx, "
 231                                         "mem_end=%#lx, base_addr=%#x, "
 232                                         "irq=%u, dma=%u, port=%u}",
 233                                         ifr.ifr_map.mem_start,
 234                                         ifr.ifr_map.mem_end,
 235                                         (unsigned) ifr.ifr_map.base_addr,
 236                                         (unsigned) ifr.ifr_map.irq,
 237                                         (unsigned) ifr.ifr_map.dma,
 238                                         (unsigned) ifr.ifr_map.port);
 239                                 break;
 240                         }
 241                         tprints("}");
 242                 }
 243                 return 1;
 244         case SIOCGIFCONF:
 245                 if (umove(tcp, tcp->u_arg[2], &ifc) < 0) {
 246                         tprints("???}");
 247                         return 1;
 248                 }
 249                 tprintf("%d, ", ifc.ifc_len);
 250                 if (syserror(tcp)) {
 251                         tprintf("%lx", (unsigned long) ifc.ifc_buf);
 252                 } else if (ifc.ifc_buf == NULL) {
 253                         tprints("NULL");
 254                 } else {
 255                         int i;
 256                         unsigned nifra = ifc.ifc_len / sizeof(struct ifreq);
 257                         struct ifreq ifra[nifra];
 258
 259                         if (umoven(tcp, (unsigned long) ifc.ifc_buf,
 260                                 sizeof(ifra), (char *) ifra) < 0) {
 261                                 tprintf("%lx}", (unsigned long) ifc.ifc_buf);
 262                                 return 1;
 263                         }
 264                         tprints("{");
 265                         for (i = 0; i < nifra; ++i ) {
 266                                 if (i > 0)
 267                                         tprints(", ");
 268                                 tprintf("{\"%s\", {",
 269                                         ifra[i].ifr_name);
 270                                 if (verbose(tcp)) {
 271                                         printxval(addrfams,
 272                                                   ifra[i].ifr_addr.sa_family,
 273                                                   "AF_???");
 274                                         tprints(", ");
 275                                         print_addr(tcp, ((long) tcp->u_arg[2]
 276                                                          + offsetof(struct ifreq,
 277                                                                      ifr_addr.sa_data)
 278                                                          + ((char *) &ifra[i]
 279                                                             - (char *) &ifra[0])),
 280                                                    &ifra[i]);
 281                                 } else
 282                                         tprints("...");
 283                                 tprints("}}");
 284                         }
 285                         tprints("}");
 286                 }
 287                 tprints("}");
 288                 return 1;
 289 #endif
 290         default:
 291                 return 0;
 292         }
 293 }