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