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 #include <sys/socket.h>
  33 #include <linux/sockios.h>
  34 #include <arpa/inet.h>
  35
  36 #if defined(ALPHA) || defined(SH) || defined(SH64)
  37 # ifdef HAVE_SYS_IOCTL_H
  38 #  include <sys/ioctl.h>
  39 # elif defined(HAVE_IOCTLS_H)
  40 #  include <ioctls.h>
  41 # endif
  42 #endif
  43 #include <net/if.h>
  44
  45 static const struct xlat iffflags[] = {
  46         { IFF_UP,               "IFF_UP"                },
  47         { IFF_BROADCAST,        "IFF_BROADCAST"         },
  48         { IFF_DEBUG,            "IFF_DEBUG"             },
  49         { IFF_LOOPBACK,         "IFF_LOOPBACK"          },
  50         { IFF_POINTOPOINT,      "IFF_POINTOPOINT"       },
  51         { IFF_NOTRAILERS,       "IFF_NOTRAILERS"        },
  52         { IFF_RUNNING,          "IFF_RUNNING"           },
  53         { IFF_NOARP,            "IFF_NOARP"             },
  54         { IFF_PROMISC,          "IFF_PROMISC"           },
  55         { IFF_ALLMULTI,         "IFF_ALLMULTI"          },
  56         { IFF_MASTER,           "IFF_MASTER"            },
  57         { IFF_SLAVE,            "IFF_SLAVE"             },
  58         { IFF_MULTICAST,        "IFF_MULTICAST"         },
  59         { IFF_PORTSEL,          "IFF_PORTSEL"           },
  60         { IFF_AUTOMEDIA,        "IFF_AUTOMEDIA"         },
  61         { 0,                    NULL                    }
  62 };
  63
  64 static void
  65 print_addr(struct tcb *tcp, long addr, struct ifreq *ifr)
  66 {
  67         if (ifr->ifr_addr.sa_family == AF_INET) {
  68                 struct sockaddr_in *sinp;
  69                 sinp = (struct sockaddr_in *) &ifr->ifr_addr;
  70                 tprintf("inet_addr(\"%s\")", inet_ntoa(sinp->sin_addr));
  71         } else
  72                 printstr(tcp, addr, sizeof(ifr->ifr_addr.sa_data));
  73 }
  74
  75 int
  76 sock_ioctl(struct tcb *tcp, long code, long arg)
  77 {
  78         struct ifreq ifr;
  79         struct ifconf ifc;
  80         const char *str = NULL;
  81         unsigned char *bytes;
  82
  83         if (entering(tcp)) {
  84                 if (code == SIOCGIFCONF) {
  85                         if (umove(tcp, tcp->u_arg[2], &ifc) >= 0
  86                             && ifc.ifc_buf == NULL)
  87                                 tprintf(", {%d -> ", ifc.ifc_len);
  88                         else
  89                                 tprints(", {");
  90                 }
  91                 return 0;
  92         }
  93
  94         switch (code) {
  95 #ifdef SIOCSHIWAT
  96         case SIOCSHIWAT:
  97 #endif
  98 #ifdef SIOCGHIWAT
  99         case SIOCGHIWAT:
 100 #endif
 101 #ifdef SIOCSLOWAT
 102         case SIOCSLOWAT:
 103 #endif
 104 #ifdef SIOCGLOWAT
 105         case SIOCGLOWAT:
 106 #endif
 107 #ifdef FIOSETOWN
 108         case FIOSETOWN:
 109 #endif
 110 #ifdef FIOGETOWN
 111         case FIOGETOWN:
 112 #endif
 113 #ifdef SIOCSPGRP
 114         case SIOCSPGRP:
 115 #endif
 116 #ifdef SIOCGPGRP
 117         case SIOCGPGRP:
 118 #endif
 119 #ifdef SIOCATMARK
 120         case SIOCATMARK:
 121 #endif
 122                 printnum(tcp, arg, ", %#d");
 123                 return 1;
 124         case SIOCGIFNAME:
 125         case SIOCSIFNAME:
 126         case SIOCGIFINDEX:
 127         case SIOCGIFADDR:
 128         case SIOCSIFADDR:
 129         case SIOCGIFDSTADDR:
 130         case SIOCSIFDSTADDR:
 131         case SIOCGIFBRDADDR:
 132         case SIOCSIFBRDADDR:
 133         case SIOCGIFNETMASK:
 134         case SIOCSIFNETMASK:
 135         case SIOCGIFFLAGS:
 136         case SIOCSIFFLAGS:
 137         case SIOCGIFMETRIC:
 138         case SIOCSIFMETRIC:
 139         case SIOCGIFMTU:
 140         case SIOCSIFMTU:
 141         case SIOCGIFSLAVE:
 142         case SIOCSIFSLAVE:
 143         case SIOCGIFHWADDR:
 144         case SIOCSIFHWADDR:
 145         case SIOCGIFTXQLEN:
 146         case SIOCSIFTXQLEN:
 147         case SIOCGIFMAP:
 148         case SIOCSIFMAP:
 149                 if (umove(tcp, tcp->u_arg[2], &ifr) < 0)
 150                         tprintf(", %#lx", tcp->u_arg[2]);
 151                 else if (syserror(tcp)) {
 152                         if (code == SIOCGIFNAME || code == SIOCSIFNAME)
 153                                 tprintf(", {ifr_index=%d, ifr_name=???}", ifr.ifr_ifindex);
 154                         else
 155                                 tprintf(", {ifr_name=\"%s\", ???}", ifr.ifr_name);
 156                 } else if (code == SIOCGIFNAME || code == SIOCSIFNAME)
 157                         tprintf(", {ifr_index=%d, ifr_name=\"%s\"}",
 158                                 ifr.ifr_ifindex, ifr.ifr_name);
 159                 else {
 160                         tprintf(", {ifr_name=\"%s\", ", ifr.ifr_name);
 161                         switch (code) {
 162                         case SIOCGIFINDEX:
 163                                 tprintf("ifr_index=%d", ifr.ifr_ifindex);
 164                                 break;
 165                         case SIOCGIFADDR:
 166                         case SIOCSIFADDR:
 167                                 str = "ifr_addr";
 168                         case SIOCGIFDSTADDR:
 169                         case SIOCSIFDSTADDR:
 170                                 if (!str)
 171                                         str = "ifr_dstaddr";
 172                         case SIOCGIFBRDADDR:
 173                         case SIOCSIFBRDADDR:
 174                                 if (!str)
 175                                         str = "ifr_broadaddr";
 176                         case SIOCGIFNETMASK:
 177                         case SIOCSIFNETMASK:
 178                                 if (!str)
 179                                         str = "ifr_netmask";
 180                                 tprintf("%s={", str);
 181                                 printxval(addrfams,
 182                                           ifr.ifr_addr.sa_family,
 183                                           "AF_???");
 184                                 tprints(", ");
 185                                 print_addr(tcp, ((long) tcp->u_arg[2]
 186                                                  + offsetof(struct ifreq,
 187                                                              ifr_addr.sa_data)),
 188                                            &ifr);
 189                                 tprints("}");
 190                                 break;
 191                         case SIOCGIFHWADDR:
 192                         case SIOCSIFHWADDR:
 193                                 /* XXX Are there other hardware addresses
 194                                    than 6-byte MACs?  */
 195                                 bytes = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
 196                                 tprintf("ifr_hwaddr=%02x:%02x:%02x:%02x:%02x:%02x",
 197                                         bytes[0], bytes[1], bytes[2],
 198                                         bytes[3], bytes[4], bytes[5]);
 199                                 break;
 200                         case SIOCGIFFLAGS:
 201                         case SIOCSIFFLAGS:
 202                                 tprints("ifr_flags=");
 203                                 printflags(iffflags, ifr.ifr_flags, "IFF_???");
 204                                 break;
 205                         case SIOCGIFMETRIC:
 206                         case SIOCSIFMETRIC:
 207                                 tprintf("ifr_metric=%d", ifr.ifr_metric);
 208                                 break;
 209                         case SIOCGIFMTU:
 210                         case SIOCSIFMTU:
 211                                 tprintf("ifr_mtu=%d", ifr.ifr_mtu);
 212                                 break;
 213                         case SIOCGIFSLAVE:
 214                         case SIOCSIFSLAVE:
 215                                 tprintf("ifr_slave=\"%s\"", ifr.ifr_slave);
 216                                 break;
 217                         case SIOCGIFTXQLEN:
 218                         case SIOCSIFTXQLEN:
 219                                 tprintf("ifr_qlen=%d", ifr.ifr_qlen);
 220                                 break;
 221                         case SIOCGIFMAP:
 222                         case SIOCSIFMAP:
 223                                 tprintf("ifr_map={mem_start=%#lx, "
 224                                         "mem_end=%#lx, base_addr=%#x, "
 225                                         "irq=%u, dma=%u, port=%u}",
 226                                         ifr.ifr_map.mem_start,
 227                                         ifr.ifr_map.mem_end,
 228                                         (unsigned) ifr.ifr_map.base_addr,
 229                                         (unsigned) ifr.ifr_map.irq,
 230                                         (unsigned) ifr.ifr_map.dma,
 231                                         (unsigned) ifr.ifr_map.port);
 232                                 break;
 233                         }
 234                         tprints("}");
 235                 }
 236                 return 1;
 237         case SIOCGIFCONF:
 238                 if (umove(tcp, tcp->u_arg[2], &ifc) < 0) {
 239                         tprints("???}");
 240                         return 1;
 241                 }
 242                 tprintf("%d, ", ifc.ifc_len);
 243                 if (syserror(tcp)) {
 244                         tprintf("%lx", (unsigned long) ifc.ifc_buf);
 245                 } else if (ifc.ifc_buf == NULL) {
 246                         tprints("NULL");
 247                 } else {
 248                         int i;
 249                         unsigned nifra = ifc.ifc_len / sizeof(struct ifreq);
 250                         struct ifreq ifra[nifra];
 251
 252                         if (umoven(tcp, (unsigned long) ifc.ifc_buf,
 253                                 sizeof(ifra), (char *) ifra) < 0) {
 254                                 tprintf("%lx}", (unsigned long) ifc.ifc_buf);
 255                                 return 1;
 256                         }
 257                         tprints("{");
 258                         for (i = 0; i < nifra; ++i ) {
 259                                 if (i > 0)
 260                                         tprints(", ");
 261                                 tprintf("{\"%s\", {",
 262                                         ifra[i].ifr_name);
 263                                 if (verbose(tcp)) {
 264                                         printxval(addrfams,
 265                                                   ifra[i].ifr_addr.sa_family,
 266                                                   "AF_???");
 267                                         tprints(", ");
 268                                         print_addr(tcp, ((long) tcp->u_arg[2]
 269                                                          + offsetof(struct ifreq,
 270                                                                      ifr_addr.sa_data)
 271                                                          + ((char *) &ifra[i]
 272                                                             - (char *) &ifra[0])),
 273                                                    &ifra[i]);
 274                                 } else
 275                                         tprints("...");
 276                                 tprints("}}");
 277                         }
 278                         tprints("}");
 279                 }
 280                 tprints("}");
 281                 return 1;
 282         default:
 283                 return 0;
 284         }
 285 }
 286
 287 int
 288 sys_socketcall(struct tcb *tcp)
 289 {
 290         return printargs(tcp);
 291 }