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