1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#include <stdio.h>
28#include <sys/types.h>
29#include <sys/socket.h>
30#include <sys/ethernet.h>
31#include <sys/vlan.h>
32#include <net/trill.h>
33
34#include <snoop.h>
35
36#define	PDUTYPE_OFFSET 4
37#define	PDUTYPE_HELLO1 15
38#define	PDUTYPE_HELLO2 16
39#define	PDUTYPE_HELLOP2P 17
40#define	PDUTYPE_LSP1 18
41#define	PDUTYPE_LSP2 20
42#define	PDUTYPE_CSN1 24
43#define	PDUTYPE_CSN2 25
44#define	PDUTYPE_PSN1 26
45#define	PDUTYPE_PSN2 27
46
47int
48interpret_isis(int flags, char *data, int dlen, boolean_t istrill)
49{
50	uint8_t pdutypenum;
51	char *pdutype;
52
53	pdutypenum = *(data+ PDUTYPE_OFFSET);
54	switch (pdutypenum) {
55	case PDUTYPE_HELLO1:
56	case PDUTYPE_HELLO2:
57		pdutype = "Hello";
58		break;
59	case PDUTYPE_HELLOP2P:
60		pdutype = "P2P Hello";
61		break;
62	case PDUTYPE_LSP1:
63	case PDUTYPE_LSP2:
64		pdutype = "Link State";
65		break;
66	case PDUTYPE_CSN1:
67	case PDUTYPE_CSN2:
68		pdutype = "CSN";
69		break;
70	case PDUTYPE_PSN1:
71	case PDUTYPE_PSN2:
72		pdutype = "PSN";
73		break;
74	default:
75		pdutype = "Unknown";
76		break;
77	}
78
79	if (flags & F_SUM) {
80		(void) snprintf(get_sum_line(), MAXLINE,
81		    "%s %s L:%d", istrill ? "Core TRILL IS-IS" : "IS-IS",
82		    pdutype, dlen);
83	}
84
85	if (flags & F_DTAIL) {
86		if (istrill) {
87			show_header("TRILL-IS-IS: ",
88			    "Core TRILL IS-IS Frame", dlen);
89		} else {
90			show_header("IS-IS: ",
91			    "IS-IS Frame", dlen);
92		}
93		show_space();
94		(void) snprintf(get_line(0, 0), get_line_remain(),
95		    "Frame type = %02X (%s)", pdutypenum, pdutype);
96		show_trailer();
97	}
98	return (0);
99}
100