usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_isis.c

   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
  47 int
  48 interpret_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 }