Annotation of embedaddon/libnet/sample/dot1x.c, revision 1.1.1.2
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),
1.1.1.2 ! misho 71: (uint8_t *)payload,
1.1 misho 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:
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