Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / print-lane.c
CommitLineData
c8cf0f94
PA
1/*
2 * Marko Kiiskila carnil@cs.tut.fi
3 *
4 * Tampere University of Technology - Telecommunications Laboratory
5 *
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
14 * the software.
15 *
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
19 * SOFTWARE.
20 *
21 */
22
23#ifndef lint
24static const char rcsid[] _U_ =
25 "@(#) $Header: /tcpdump/master/tcpdump/print-lane.c,v 1.23.2.2 2005/11/13 12:12:59 guy Exp $ (LBL)";
26#endif
27
28#ifdef HAVE_CONFIG_H
29#include "config.h"
30#endif
31
32#include <tcpdump-stdinc.h>
33
34#include <stdio.h>
35#include <pcap.h>
36
37#include "interface.h"
38#include "addrtoname.h"
39#include "extract.h"
40#include "ether.h"
41#include "lane.h"
42
43static const struct tok lecop2str[] = {
44 { 0x0001, "configure request" },
45 { 0x0101, "configure response" },
46 { 0x0002, "join request" },
47 { 0x0102, "join response" },
48 { 0x0003, "ready query" },
49 { 0x0103, "ready indication" },
50 { 0x0004, "register request" },
51 { 0x0104, "register response" },
52 { 0x0005, "unregister request" },
53 { 0x0105, "unregister response" },
54 { 0x0006, "ARP request" },
55 { 0x0106, "ARP response" },
56 { 0x0007, "flush request" },
57 { 0x0107, "flush response" },
58 { 0x0008, "NARP request" },
59 { 0x0009, "topology request" },
60 { 0, NULL }
61};
62
63static inline void
64lane_hdr_print(register const u_char *bp, int length)
65{
66 register const struct lecdatahdr_8023 *ep;
67
68 ep = (const struct lecdatahdr_8023 *)bp;
69 if (qflag)
70 (void)printf("lecid:%x %s %s %d: ",
71 EXTRACT_16BITS(&ep->le_header),
72 etheraddr_string(ep->h_source),
73 etheraddr_string(ep->h_dest),
74 length);
75 else
76 (void)printf("lecid:%x %s %s %s %d: ",
77 EXTRACT_16BITS(&ep->le_header),
78 etheraddr_string(ep->h_source),
79 etheraddr_string(ep->h_dest),
80 etherproto_string(ep->h_type),
81 length);
82}
83
84/*
85 * This is the top level routine of the printer. 'p' points
86 * to the LANE header of the packet, 'h->ts' is the timestamp,
87 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
88 * is the number of bytes actually captured.
89 *
90 * This assumes 802.3, not 802.5, LAN emulation.
91 */
92void
93lane_print(const u_char *p, u_int length, u_int caplen)
94{
95 struct lane_controlhdr *lec;
96 struct lecdatahdr_8023 *ep;
97 u_short ether_type;
98 u_short extracted_ethertype;
99
100 if (caplen < sizeof(struct lane_controlhdr)) {
101 printf("[|lane]");
102 return;
103 }
104
105 lec = (struct lane_controlhdr *)p;
106 if (EXTRACT_16BITS(&lec->lec_header) == 0xff00) {
107 /*
108 * LE Control.
109 */
110 printf("lec: proto %x vers %x %s",
111 lec->lec_proto, lec->lec_vers,
112 tok2str(lecop2str, "opcode-#%u", EXTRACT_16BITS(&lec->lec_opcode)));
113 return;
114 }
115
116 if (caplen < sizeof(struct lecdatahdr_8023)) {
117 printf("[|lane]");
118 return;
119 }
120
121 if (eflag)
122 lane_hdr_print(p, length);
123
124 /*
125 * Go past the LANE header.
126 */
127 length -= sizeof(struct lecdatahdr_8023);
128 caplen -= sizeof(struct lecdatahdr_8023);
129 ep = (struct lecdatahdr_8023 *)p;
130 p += sizeof(struct lecdatahdr_8023);
131
132 ether_type = EXTRACT_16BITS(&ep->h_type);
133
134 /*
135 * Is it (gag) an 802.3 encapsulation?
136 */
137 if (ether_type <= ETHERMTU) {
138 /* Try to print the LLC-layer header & higher layers */
139 if (llc_print(p, length, caplen, ep->h_source, ep->h_dest,
140 &extracted_ethertype) == 0) {
141 /* ether_type not known, print raw packet */
142 if (!eflag)
143 lane_hdr_print((u_char *)ep, length + sizeof(*ep));
144 if (extracted_ethertype) {
145 printf("(LLC %s) ",
146 etherproto_string(htons(extracted_ethertype)));
147 }
148 if (!suppress_default_print)
149 default_print(p, caplen);
150 }
151 } else if (ether_encap_print(ether_type, p, length, caplen,
152 &extracted_ethertype) == 0) {
153 /* ether_type not known, print raw packet */
154 if (!eflag)
155 lane_hdr_print((u_char *)ep, length + sizeof(*ep));
156 if (!suppress_default_print)
157 default_print(p, caplen);
158 }
159}
160
161u_int
162lane_if_print(const struct pcap_pkthdr *h, const u_char *p)
163{
164 lane_print(p, h->len, h->caplen);
165
166 return (sizeof(struct lecdatahdr_8023));
167}