File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / libnet / src / libnet_internal.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue Feb 21 22:14:23 2012 UTC (12 years, 5 months ago) by misho
Branches: libnet, MAIN
CVS tags: v1_1_2_1, HEAD
libnet

    1: /*
    2:  *  $Id: libnet_internal.c,v 1.1.1.1 2012/02/21 22:14:23 misho Exp $
    3:  *
    4:  *  libnet
    5:  *  libnet_internal.c - secret routines!
    6:  *
    7:  *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
    8:  *  All rights reserved.
    9:  *
   10:  * Redistribution and use in source and binary forms, with or without
   11:  * modification, are permitted provided that the following conditions
   12:  * are met:
   13:  * 1. Redistributions of source code must retain the above copyright
   14:  *    notice, this list of conditions and the following disclaimer.
   15:  * 2. Redistributions in binary form must reproduce the above copyright
   16:  *    notice, this list of conditions and the following disclaimer in the
   17:  *    documentation and/or other materials provided with the distribution.
   18:  *
   19:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29:  * SUCH DAMAGE.
   30:  *
   31:  */
   32: 
   33: #if (HAVE_CONFIG_H)
   34: #include "../include/config.h"
   35: #endif
   36: #if (!(_WIN32) || (__CYGWIN__)) 
   37: #include "../include/libnet.h"
   38: #else
   39: #include "../include/win32/libnet.h"
   40: #endif
   41: 
   42: void
   43: libnet_diag_dump_hex(u_int8_t *packet, u_int32_t len, int swap, FILE *stream)
   44: {
   45:     int i, s_cnt;
   46:     u_int16_t *p;
   47: 
   48:     p     = (u_int16_t *)packet;
   49:     s_cnt = len / sizeof(u_int16_t);
   50: 
   51:     fprintf(stream, "\t");
   52:     for (i = 0; --s_cnt >= 0; i++)
   53:     {
   54:         if ((!(i % 8)))
   55:         {
   56:             fprintf(stream, "\n%02x\t", (i * 2));
   57:         }
   58:         fprintf(stream, "%04x ", swap ? ntohs(*(p++)) : *(p++));
   59:     }
   60: 
   61:     /*
   62:      *  Mop up an odd byte.
   63:      */
   64:     if (len & 1)
   65:     {
   66:         if ((!(i % 8)))
   67:         {
   68:             fprintf(stream, "\n%02x\t", (i * 2));
   69:         }
   70:         fprintf(stream, "%02x ", *(u_int8_t *)p);
   71:     }
   72:     fprintf(stream, "\n");
   73: }
   74: 
   75: 
   76: void
   77: libnet_diag_dump_context(libnet_t *l)
   78: {
   79:     if (l == NULL)
   80:     { 
   81:         return;
   82:     } 
   83: 
   84:     fprintf(stderr, "fd:\t\t%d\n", l->fd);
   85:  
   86:     switch (l->injection_type)
   87:     {
   88:         case LIBNET_LINK:
   89:             fprintf(stderr, "injection type:\tLIBNET_LINK\n");
   90:             break;
   91:         case LIBNET_RAW4:
   92:             fprintf(stderr, "injection type:\tLIBNET_RAW4\n");
   93:             break;
   94:         case LIBNET_RAW6:
   95:             fprintf(stderr, "injection type:\tLIBNET_RAW6\n");
   96:             break;
   97:         case LIBNET_LINK_ADV:
   98:             fprintf(stderr, "injection type:\tLIBNET_LINK_ADV\n");
   99:             break;
  100:         case LIBNET_RAW4_ADV:
  101:             fprintf(stderr, "injection type:\tLIBNET_RAW4_ADV\n");
  102:             break;
  103:         case LIBNET_RAW6_ADV:
  104:             fprintf(stderr, "injection type:\tLIBNET_RAW6_ADV\n");
  105:             break;
  106:         default:
  107:             fprintf(stderr, "injection type:\tinvalid injection type %d\n", 
  108:                     l->injection_type);
  109:             break;
  110:     }
  111:     
  112:     fprintf(stderr, "pblock start:\t%p\n", l->protocol_blocks);
  113:     fprintf(stderr, "pblock end:\t%p\n", l->pblock_end);
  114:     fprintf(stderr, "link type:\t%d\n", l->link_type);
  115:     fprintf(stderr, "link offset:\t%d\n", l->link_offset);
  116:     fprintf(stderr, "aligner:\t%d\n", l->aligner);
  117:     fprintf(stderr, "device:\t\t%s\n", l->device);
  118:     fprintf(stderr, "packets sent:\t%lld\n", l->stats.packets_sent);
  119:     fprintf(stderr, "packet errors:\t%lld\n", l->stats.packet_errors);
  120:     fprintf(stderr, "bytes written:\t%lld\n", l->stats.bytes_written);
  121:     fprintf(stderr, "ptag state:\t%d\n", l->ptag_state);
  122:     fprintf(stderr, "context label:\t%s\n", l->label);
  123:     fprintf(stderr, "last errbuf:\t%s\n", l->err_buf);
  124:     fprintf(stderr, "total size:\t%d\n", l->total_size);
  125: }
  126: 
  127: void
  128: libnet_diag_dump_pblock(libnet_t *l)
  129: {
  130:     u_int32_t n;
  131:     libnet_pblock_t *p;
  132: 
  133:     for (p = l->protocol_blocks; p; p = p->next)
  134:     {
  135:         fprintf(stderr, "pblock type:\t%s\n", 
  136:                 libnet_diag_dump_pblock_type(p->type));
  137:         fprintf(stderr, "ptag number:\t%d\n", p->ptag);
  138:         fprintf(stderr, "IP offset:\t%d\n", p->ip_offset);
  139:         fprintf(stderr, "pblock address:\t%p\n", p);
  140:         fprintf(stderr, "next pblock\t%p ", p->next);
  141:         if (p->next)
  142:         {
  143:             fprintf(stderr, "(%s)",
  144:                     libnet_diag_dump_pblock_type(p->next->type));
  145:         }
  146:         fprintf(stderr, "\n");
  147:         fprintf(stderr, "prev pblock\t%p ", p->prev);
  148:         if (p->prev)
  149:         {
  150:             fprintf(stderr, "(%s)",
  151:                     libnet_diag_dump_pblock_type(p->prev->type));
  152:         }
  153:         fprintf(stderr, "\n");
  154:         fprintf(stderr, "buf:\t\t");
  155:         for (n = 0; n < p->b_len; n++)
  156:         {
  157:             fprintf(stderr, "%02x", p->buf[n]);
  158:         }
  159:         fprintf(stderr, "\nbuffer length:\t%d\n", p->b_len);
  160:         if ((p->flags) & LIBNET_PBLOCK_DO_CHECKSUM)
  161:         {
  162:             fprintf(stderr, "checksum flag:\tYes\n");
  163:             fprintf(stderr, "chksum length:\t%d\n", p->h_len);
  164:         }
  165:         else
  166:         {
  167:             fprintf(stderr, "checksum flag:\tNo\n");
  168:         }
  169:         fprintf(stderr, "bytes copied:\t%d\n\n", p->copied);
  170:     }
  171: }
  172: 
  173: char *
  174: libnet_diag_dump_pblock_type(u_int8_t type)
  175: {
  176:     static int8_t buf[50];
  177:     switch (type)
  178:     {
  179:         case LIBNET_PBLOCK_ARP_H:
  180:             return ("arp header");
  181:         case LIBNET_PBLOCK_DHCPV4_H:
  182:             return ("dhcpv4 header");
  183:         case LIBNET_PBLOCK_DNSV4_H:
  184:             return ("dnsv4 header");
  185:         case LIBNET_PBLOCK_ETH_H:
  186:             return ("ethernet header");
  187:         case LIBNET_PBLOCK_ICMPV4_H:
  188:             return ("icmpv4 header");
  189:         case LIBNET_PBLOCK_ICMPV4_ECHO_H:
  190:             return ("icmpv4 echo header");
  191:         case LIBNET_PBLOCK_ICMPV4_MASK_H:
  192:             return ("icmpv4 mask header");
  193:         case LIBNET_PBLOCK_ICMPV4_UNREACH_H:
  194:             return ("icmpv4 unreachable header");
  195:         case LIBNET_PBLOCK_ICMPV4_TIMXCEED_H:
  196:             return ("icmpv4 time exceeded header");
  197:         case LIBNET_PBLOCK_ICMPV4_REDIRECT_H:
  198:             return ("icmpv4 redirect header");
  199:         case LIBNET_PBLOCK_ICMPV4_TS_H:
  200:             return ("icmpv4 timestamp header");
  201:         case LIBNET_PBLOCK_IGMP_H:
  202:             return ("igmp header");
  203:         case LIBNET_PBLOCK_IPV4_H:
  204:             return ("ipv4 header");
  205:         case LIBNET_PBLOCK_IPO_H:
  206:             return ("ip options header");
  207:         case LIBNET_PBLOCK_IPDATA:
  208:             return ("ip data");
  209:         case LIBNET_PBLOCK_OSPF_H:
  210:             return ("ospf header");
  211:         case LIBNET_PBLOCK_OSPF_HELLO_H:
  212:             return ("ospf hello header");
  213:         case LIBNET_PBLOCK_OSPF_DBD_H:
  214:             return ("ospf dbd header");
  215:         case LIBNET_PBLOCK_OSPF_LSR_H:
  216:             return ("ospf lsr header");
  217:         case LIBNET_PBLOCK_OSPF_LSU_H:
  218:             return ("ospf lsu header");
  219:         case LIBNET_PBLOCK_OSPF_LSA_H:
  220:             return ("ospf lsa header");
  221:         case LIBNET_PBLOCK_OSPF_AUTH_H:
  222:             return ("ospf authentication header");
  223:         case LIBNET_PBLOCK_OSPF_CKSUM:
  224:             return ("ospf checksum");
  225:         case LIBNET_PBLOCK_LS_RTR_H:
  226:             return ("ospf ls rtr header");
  227:         case LIBNET_PBLOCK_LS_NET_H:
  228:             return ("ospf ls net header");
  229:         case LIBNET_PBLOCK_LS_SUM_H:
  230:             return ("ospf ls sum header");
  231:         case LIBNET_PBLOCK_LS_AS_EXT_H:
  232:             return ("ospf ls as extension header");
  233:         case LIBNET_PBLOCK_NTP_H:
  234:             return ("ntp header");
  235:         case LIBNET_PBLOCK_RIP_H:
  236:             return ("rip header");
  237:         case LIBNET_PBLOCK_TCP_H:
  238:             return ("tcp header");
  239:         case LIBNET_PBLOCK_TCPO_H:
  240:             return ("tcp options header");
  241:         case LIBNET_PBLOCK_TCPDATA:
  242:             return ("tcp data");
  243:         case LIBNET_PBLOCK_UDP_H:
  244:             return ("udp header");
  245:         case LIBNET_PBLOCK_VRRP_H:
  246:             return ("vrrp header");
  247:         case LIBNET_PBLOCK_DATA_H:
  248:             return ("data");
  249:         case LIBNET_PBLOCK_CDP_H:
  250:             return ("cdp header");
  251:         case LIBNET_PBLOCK_IPSEC_ESP_HDR_H:
  252:             return ("ipsec esp header");
  253:         case LIBNET_PBLOCK_IPSEC_ESP_FTR_H:
  254:             return ("ipsec esp footer");
  255:         case LIBNET_PBLOCK_IPSEC_AH_H:
  256:             return ("ipsec authentication header");
  257:         case LIBNET_PBLOCK_802_1Q_H:
  258:             return ("802.1q header");
  259:         case LIBNET_PBLOCK_802_2_H:
  260:             return ("802.2 header");
  261:         case LIBNET_PBLOCK_802_2SNAP_H:
  262:             return ("802.2SNAP header");
  263:         case LIBNET_PBLOCK_802_3_H:
  264:             return ("802.3 header");
  265:         case LIBNET_PBLOCK_STP_CONF_H:
  266:             return ("stp configuration header");
  267:         case LIBNET_PBLOCK_STP_TCN_H:
  268:             return ("stp tcn header");
  269:         case LIBNET_PBLOCK_ISL_H:
  270:             return ("isl header");
  271:         case LIBNET_PBLOCK_IPV6_H:
  272:             return ("ipv6 header");
  273:         case LIBNET_PBLOCK_802_1X_H:
  274:             return ("802.1x header");
  275:         case LIBNET_PBLOCK_RPC_CALL_H:
  276:             return ("rpc call header");
  277:         case LIBNET_PBLOCK_MPLS_H:
  278:             return ("mlps header");
  279:         case LIBNET_PBLOCK_FDDI_H:
  280:             return ("fddi header");
  281:         case LIBNET_PBLOCK_TOKEN_RING_H:
  282:             return ("token ring header");
  283:         case LIBNET_PBLOCK_BGP4_HEADER_H:
  284:             return ("bgp header");
  285:         case LIBNET_PBLOCK_BGP4_OPEN_H:
  286:             return ("bgp open header");
  287:         case LIBNET_PBLOCK_BGP4_UPDATE_H:
  288:             return ("bgp update header");
  289:         case LIBNET_PBLOCK_BGP4_NOTIFICATION_H:
  290:             return ("bgp notification header");
  291:         case LIBNET_PBLOCK_GRE_H:
  292:             return ("gre header");
  293:         case LIBNET_PBLOCK_GRE_SRE_H:
  294:             return ("gre sre header");
  295:         case LIBNET_PBLOCK_IPV6_FRAG_H:
  296:             return ("ipv6 fragmentation header");
  297:         case LIBNET_PBLOCK_IPV6_ROUTING_H:
  298:             return ("ipv6 routing header");
  299:         case LIBNET_PBLOCK_IPV6_DESTOPTS_H:
  300:             return ("ipv6 destination options header");
  301:         case LIBNET_PBLOCK_IPV6_HBHOPTS_H:
  302:             return ("ipv6 hop by hop options header");
  303:         default:
  304:             snprintf(buf, sizeof(buf),
  305:                     "%s(): unknown pblock type: %d", __func__, type);
  306:             return (buf);
  307:     }
  308:     return ("unreachable code");
  309: }
  310: /* EOF */

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