2 * Marko Kiiskila carnil@cs.tut.fi
4 * Tampere University of Technology - Telecommunications Laboratory
6 * Permission to use, copy, modify and distribute this
7 * software and its documentation is hereby granted,
8 * provided that both the copyright notice and this
9 * permission notice appear in all copies of the software,
10 * derivative works or modified versions, and any portions
11 * thereof, that both notices appear in supporting
12 * documentation, and that the use of this software is
13 * acknowledged in any publications resulting from using
16 * TUT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION AND DISCLAIMS ANY LIABILITY OF ANY KIND FOR
18 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS
23 /* \summary: Classical-IP over ATM printer */
31 #include <netdissect-stdinc.h>
33 #include "netdissect.h"
34 #include "addrtoname.h"
36 static const unsigned char rfcllc[] = {
37 0xaa, /* DSAP: non-ISO */
38 0xaa, /* SSAP: non-ISO */
39 0x03, /* Ctrl: Unnumbered Information Command PDU */
40 0x00, /* OUI: EtherType */
45 cip_print(netdissect_options *ndo, u_int length)
48 * There is no MAC-layer header, so just print the length.
50 ND_PRINT((ndo, "%u: ", length));
54 * This is the top level routine of the printer. 'p' points
55 * to the LLC/SNAP or raw header of the packet, 'h->ts' is the timestamp,
56 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
57 * is the number of bytes actually captured.
60 cip_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
62 u_int caplen = h->caplen;
63 u_int length = h->len;
67 cmplen = sizeof(rfcllc);
74 cip_print(ndo, length);
77 ND_PRINT((ndo, "[|cip]"));
80 if (memcmp(rfcllc, p, cmplen) == 0) {
82 * LLC header is present. Try to print it & higher layers.
84 llc_hdrlen = llc_print(ndo, p, length, caplen, NULL, NULL);
86 /* packet type not known, print raw packet */
87 if (!ndo->ndo_suppress_default_print)
88 ND_DEFAULTPRINT(p, caplen);
89 llc_hdrlen = -llc_hdrlen;
93 * LLC header is absent; treat it as just IP.
96 ip_print(ndo, p, length);
105 * c-style: whitesmith