1: /*
2: * $Id: libnet_build_link.c,v 1.1.1.2 2013/07/22 11:54:42 misho Exp $
3: *
4: * libnet
5: * libnet_build_link.c - link-layer packet assembler
6: *
7: * Copyright (c) 2003 Roberto Larcher <roberto.larcher@libero.it>
8: * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
9: * All rights reserved.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: */
33:
34: #if (HAVE_CONFIG_H)
35: #include "../include/config.h"
36: #endif
37:
38: #if (!(_WIN32) || (__CYGWIN__))
39: #include "../include/libnet.h"
40: #else
41: #include "../include/win32/libnet.h"
42: #endif
43:
44: libnet_ptag_t
45: libnet_build_link(const uint8_t *dst, const uint8_t *src, const uint8_t *oui, uint16_t type,
46: const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
47:
48: {
49: uint8_t org[3] = {0x00, 0x00, 0x00};
50: switch (l->link_type)
51: {
52: /* add FDDI */
53: case DLT_EN10MB:
54: return libnet_build_ethernet(dst, src, type, payload, payload_s, l,
55: ptag);
56: case DLT_IEEE802:
57: return libnet_build_token_ring(LIBNET_TOKEN_RING_FRAME,
58: LIBNET_TOKEN_RING_LLC_FRAME, dst, src, LIBNET_SAP_SNAP,
59: LIBNET_SAP_SNAP, 0x03, org, type, payload, payload_s,
60: l, ptag);
61: }
62: snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
63: "%s(): linktype %d not supported\n", __func__, l->link_type);
64: return -1;
65: }
66:
67: libnet_ptag_t
68: libnet_autobuild_link(const uint8_t *dst, const uint8_t *oui, uint16_t type, libnet_t *l)
69: {
70: uint8_t org[3] = {0x00, 0x00, 0x00};
71: switch (l->link_type)
72: {
73: /* add FDDI */
74: case DLT_EN10MB:
75: return (libnet_autobuild_ethernet(dst, type, l));
76: case DLT_IEEE802:
77: return (libnet_autobuild_token_ring(LIBNET_TOKEN_RING_FRAME,
78: LIBNET_TOKEN_RING_LLC_FRAME, dst, LIBNET_SAP_SNAP,
79: LIBNET_SAP_SNAP, 0x03, org, TOKEN_RING_TYPE_IP, l));
80: }
81: snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
82: "%s(): linktype %d not supported\n", __func__, l->link_type);
83: return (-1);
84: }
85:
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