3 Packet assembly code, originally contributed by Archie Cobbs. */
6 * Copyright (c) 1996-2002 Internet Software Consortium.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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 * 3. Neither the name of The Internet Software Consortium nor the names
19 * of its contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
23 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
24 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
27 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
30 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * This software has been written for the Internet Software Consortium
37 * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
38 * To learn more about the Internet Software Consortium, see
39 * ``http://www.isc.org/''. To learn more about Vixie Enterprises,
40 * see ``http://www.vix.com''. To learn more about Nominum, Inc., see
41 * ``http://www.nominum.com''.
45 static char copyright[] =
46 "$Id: fddi.c,v 1.3.2.1 2002/11/17 02:26:58 dhankins Exp $ Copyright (c) 1996-2002 The Internet Software Consortium. All rights reserved.\n";
51 #if defined (DEC_FDDI)
52 #include <netinet/if_fddi.h>
53 #include <net/if_llc.h>
55 #if defined (PACKET_ASSEMBLY) || defined (PACKET_DECODING)
56 #include "includes/netinet/if_ether.h"
57 #endif /* PACKET_ASSEMBLY || PACKET_DECODING */
59 #if defined (PACKET_ASSEMBLY)
60 /* Assemble an hardware header... */
62 void assemble_fddi_header (interface, buf, bufix, to)
63 struct interface_info *interface;
68 struct fddi_header fh;
71 if (to && to -> hlen == 7)
72 memcpy (fh.fddi_dhost, &to -> hbuf [1],
73 sizeof (fh.fddi_dhost));
74 memcpy (fh.fddi_shost,
75 &interface -> hw_address.hbuf [1], sizeof (fh.fddi_shost));
76 fh.fddi_fc = FDDIFC_LLC_ASYNC;
77 memcpy (&buf [*bufix], &fh, sizeof fh);
80 lh.llc_dsap = LLC_SNAP_LSAP;
81 lh.llc_ssap = LLC_SNAP_LSAP;
82 lh.llc_un.type_snap.control = LLC_UI;
83 lh.llc_un.type_snap.ether_type = htons (ETHERTYPE_IP);
84 memcpy (&buf [*bufix], &lh, LLC_SNAP_LEN);
85 *bufix += LLC_SNAP_LEN;
87 #endif /* PACKET_ASSEMBLY */
89 #ifdef PACKET_DECODING
90 /* Decode a hardware header... */
92 ssize_t decode_fddi_header (interface, buf, bufix, from)
93 struct interface_info *interface;
96 struct hardware *from;
98 struct fddi_header fh;
101 from -> hbuf [0] = HTYPE_FDDI;
102 memcpy (&from -> hbuf [1], fh.fddi_shost, sizeof fh.fddi_shost);
103 return FDDI_HEADER_SIZE + LLC_SNAP_LEN;
105 #endif /* PACKET_DECODING */
106 #endif /* DEC_FDDI */