| JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1 | /* @(#) $Header: /tcpdump/master/tcpdump/mpls.h,v 1.1 2004-06-14 14:47:58 hannes Exp $ (LBL) |
| The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2 | * Copyright (C) 2001 WIDE Project. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
| 12 | * 3. Neither the name of the project nor the names of its contributors |
| 13 | * may be used to endorse or promote products derived from this software |
| 14 | * without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #define LABEL_MASK 0xfffff000 |
| 30 | #define LABEL_SHIFT 12 |
| 31 | #define EXP_MASK 0x00000e00 |
| 32 | #define EXP_SHIFT 9 |
| 33 | #define STACK_MASK 0x00000100 |
| 34 | #define STACK_SHIFT 8 |
| 35 | #define TTL_MASK 0x000000ff |
| 36 | #define TTL_SHIFT 0 |
| 37 | |
| 38 | #define MPLS_LABEL(x) (((x) & LABEL_MASK) >> LABEL_SHIFT) |
| 39 | #define MPLS_EXP(x) (((x) & EXP_MASK) >> EXP_SHIFT) |
| 40 | #define MPLS_STACK(x) (((x) & STACK_MASK) >> STACK_SHIFT) |
| 41 | #define MPLS_TTL(x) (((x) & TTL_MASK) >> TTL_SHIFT) |