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Annotation of embedaddon/libnet/sample/dot1x.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  *  $Id: dot1x.c,v 1.2 2004/01/03 20:31:01 mike Exp $
                      3:  *
                      4:  *  libnet 1.1
                      5:  *  Build a dot1x packet
                      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: #include "./libnet_test.h"
                     37: 
                     38: int
                     39: main(int argc, char *argv[])
                     40: {
                     41:     int c;
                     42:     libnet_t *l;
                     43:     libnet_ptag_t t;
                     44:     u_char eap_dst[6] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x03};
                     45:     char *device = NULL;
                     46:     char errbuf[LIBNET_ERRBUF_SIZE];
                     47:     /* Code Id Length(2) Type DesiredType */
                     48:     char payload[] = {0x01, 0x0a, 0x00, 0x7f, 0x03, 0x05};
                     49: 
                     50:     printf("libnet 1.1 packet shaping: dot1x\n");
                     51: 
                     52:     if (argc > 1)
                     53:     {
                     54:          device = argv[1];
                     55:     }
                     56:     l = libnet_init(
                     57:             LIBNET_LINK_ADV,                        /* injection type */
                     58:             device,                                 /* network interface */
                     59:             errbuf);                                /* errbuf */
                     60: 
                     61:     if (l == NULL)
                     62:     {
                     63:         fprintf(stderr, "libnet_init() failed: %s", errbuf);
                     64:         exit(EXIT_FAILURE);
                     65:     }
                     66: 
                     67:     t = libnet_build_802_1x(
                     68:             0,
                     69:             LIBNET_802_1X_PACKET,
                     70:             sizeof(payload),
                     71:             payload,
                     72:             sizeof(payload),
                     73:             l,
                     74:             0);
                     75:     if (t == -1)
                     76:     {
                     77:         fprintf(stderr, "Can't build dot1x header: %s\n", libnet_geterror(l));
                     78:         goto bad;
                     79:     }
                     80: 
                     81:     t = libnet_autobuild_ethernet(
                     82:             eap_dst,                                /* ethernet destination */
                     83:             ETHERTYPE_EAP,                          /* protocol type */
                     84:             l);                                     /* libnet handle */
                     85:     if (t == -1)
                     86:     {
                     87:         fprintf(stderr, "Can't build ethernet header: %s\n", libnet_geterror(l));
                     88:         goto bad;
                     89:     }
                     90: 
                     91:     /*
                     92:      *  Write it to the wire.
                     93:      */
                     94:     c = libnet_write(l);
                     95: 
                     96:     if (c == -1)
                     97:     {
                     98:         fprintf(stderr, "Write error: %s\n", libnet_geterror(l));
                     99:         goto bad;
                    100:     }
                    101:     else
                    102:     {
                    103:         fprintf(stderr, "Wrote %d byte dot1x packet from context \"%s\"; "
                    104:                 "check the wire.\n", c, libnet_cq_getlabel(l));
                    105:     }
                    106:     libnet_destroy(l);
                    107:     return (EXIT_SUCCESS);
                    108: bad:
                    109:     libnet_destroy(l);
                    110:     return (EXIT_FAILURE);
                    111: }
                    112: 
                    113: /* EOF */