1*05b00f60SXin Li /* 2*05b00f60SXin Li * Copyright (C) 2001 WIDE Project. All rights reserved. 3*05b00f60SXin Li * 4*05b00f60SXin Li * Redistribution and use in source and binary forms, with or without 5*05b00f60SXin Li * modification, are permitted provided that the following conditions 6*05b00f60SXin Li * are met: 7*05b00f60SXin Li * 1. Redistributions of source code must retain the above copyright 8*05b00f60SXin Li * notice, this list of conditions and the following disclaimer. 9*05b00f60SXin Li * 2. Redistributions in binary form must reproduce the above copyright 10*05b00f60SXin Li * notice, this list of conditions and the following disclaimer in the 11*05b00f60SXin Li * documentation and/or other materials provided with the distribution. 12*05b00f60SXin Li * 3. Neither the name of the project nor the names of its contributors 13*05b00f60SXin Li * may be used to endorse or promote products derived from this software 14*05b00f60SXin Li * without specific prior written permission. 15*05b00f60SXin Li * 16*05b00f60SXin Li * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17*05b00f60SXin Li * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*05b00f60SXin Li * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*05b00f60SXin Li * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 20*05b00f60SXin Li * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*05b00f60SXin Li * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*05b00f60SXin Li * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*05b00f60SXin Li * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*05b00f60SXin Li * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*05b00f60SXin Li * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*05b00f60SXin Li * SUCH DAMAGE. 27*05b00f60SXin Li */ 28*05b00f60SXin Li 29*05b00f60SXin Li #define LABEL_MASK 0xfffff000 30*05b00f60SXin Li #define LABEL_SHIFT 12 31*05b00f60SXin Li #define TC_MASK 0x00000e00 32*05b00f60SXin Li #define TC_SHIFT 9 33*05b00f60SXin Li #define STACK_MASK 0x00000100 34*05b00f60SXin Li #define STACK_SHIFT 8 35*05b00f60SXin Li #define TTL_MASK 0x000000ff 36*05b00f60SXin Li #define TTL_SHIFT 0 37*05b00f60SXin Li 38*05b00f60SXin Li #define MPLS_LABEL(x) (((x) & LABEL_MASK) >> LABEL_SHIFT) 39*05b00f60SXin Li #define MPLS_TC(x) (((x) & TC_MASK) >> TC_SHIFT) 40*05b00f60SXin Li #define MPLS_STACK(x) (((x) & STACK_MASK) >> STACK_SHIFT) 41*05b00f60SXin Li #define MPLS_TTL(x) (((x) & TTL_MASK) >> TTL_SHIFT) 42