1*3b2bd0f6Slogwang /*- 2*3b2bd0f6Slogwang * ng_etf.h 3*3b2bd0f6Slogwang */ 4*3b2bd0f6Slogwang 5*3b2bd0f6Slogwang /*- 6*3b2bd0f6Slogwang * Copyright (c) 2001, FreeBSD Incorporated 7*3b2bd0f6Slogwang * All rights reserved. 8*3b2bd0f6Slogwang * 9*3b2bd0f6Slogwang * Redistribution and use in source and binary forms, with or without 10*3b2bd0f6Slogwang * modification, are permitted provided that the following conditions 11*3b2bd0f6Slogwang * are met: 12*3b2bd0f6Slogwang * 1. Redistributions of source code must retain the above copyright 13*3b2bd0f6Slogwang * notice unmodified, this list of conditions, and the following 14*3b2bd0f6Slogwang * disclaimer. 15*3b2bd0f6Slogwang * 2. Redistributions in binary form must reproduce the above copyright 16*3b2bd0f6Slogwang * notice, this list of conditions and the following disclaimer in the 17*3b2bd0f6Slogwang * documentation and/or other materials provided with the distribution. 18*3b2bd0f6Slogwang * 19*3b2bd0f6Slogwang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20*3b2bd0f6Slogwang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21*3b2bd0f6Slogwang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22*3b2bd0f6Slogwang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23*3b2bd0f6Slogwang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24*3b2bd0f6Slogwang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25*3b2bd0f6Slogwang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26*3b2bd0f6Slogwang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27*3b2bd0f6Slogwang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28*3b2bd0f6Slogwang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29*3b2bd0f6Slogwang * SUCH DAMAGE. 30*3b2bd0f6Slogwang * 31*3b2bd0f6Slogwang * Author: Julian Elischer <[email protected]> 32*3b2bd0f6Slogwang * 33*3b2bd0f6Slogwang * $FreeBSD$ 34*3b2bd0f6Slogwang */ 35*3b2bd0f6Slogwang 36*3b2bd0f6Slogwang #ifndef _NETGRAPH_NG_ETF_H_ 37*3b2bd0f6Slogwang #define _NETGRAPH_NG_ETF_H_ 38*3b2bd0f6Slogwang 39*3b2bd0f6Slogwang /* Node type name. This should be unique among all netgraph node types */ 40*3b2bd0f6Slogwang #define NG_ETF_NODE_TYPE "etf" 41*3b2bd0f6Slogwang 42*3b2bd0f6Slogwang /* Node type cookie. Should also be unique. This value MUST change whenever 43*3b2bd0f6Slogwang an incompatible change is made to this header file, to insure consistency. 44*3b2bd0f6Slogwang The de facto method for generating cookies is to take the output of the 45*3b2bd0f6Slogwang date command: date -u +'%s' */ 46*3b2bd0f6Slogwang #define NGM_ETF_COOKIE 983084516 47*3b2bd0f6Slogwang 48*3b2bd0f6Slogwang /* Hook names */ 49*3b2bd0f6Slogwang #define NG_ETF_HOOK_DOWNSTREAM "downstream" 50*3b2bd0f6Slogwang #define NG_ETF_HOOK_NOMATCH "nomatch" 51*3b2bd0f6Slogwang 52*3b2bd0f6Slogwang /* Netgraph commands understood by this node type */ 53*3b2bd0f6Slogwang enum { 54*3b2bd0f6Slogwang NGM_ETF_SET_FLAG = 1, 55*3b2bd0f6Slogwang NGM_ETF_GET_STATUS, 56*3b2bd0f6Slogwang NGM_ETF_SET_FILTER, 57*3b2bd0f6Slogwang 58*3b2bd0f6Slogwang }; 59*3b2bd0f6Slogwang 60*3b2bd0f6Slogwang /* This structure is returned by the NGM_ETF_GET_STATUS command */ 61*3b2bd0f6Slogwang struct ng_etfstat { 62*3b2bd0f6Slogwang u_int32_t packets_in; /* packets in from downstream */ 63*3b2bd0f6Slogwang u_int32_t packets_out; /* packets out towards downstream */ 64*3b2bd0f6Slogwang }; 65*3b2bd0f6Slogwang 66*3b2bd0f6Slogwang /* 67*3b2bd0f6Slogwang * This needs to be kept in sync with the above structure definition 68*3b2bd0f6Slogwang */ 69*3b2bd0f6Slogwang #define NG_ETF_STATS_TYPE_INFO { \ 70*3b2bd0f6Slogwang { "packets_in", &ng_parse_uint32_type }, \ 71*3b2bd0f6Slogwang { "packets_out", &ng_parse_uint32_type }, \ 72*3b2bd0f6Slogwang { NULL } \ 73*3b2bd0f6Slogwang } 74*3b2bd0f6Slogwang 75*3b2bd0f6Slogwang /* This structure is returned by the NGM_ETF_GET_STATUS command */ 76*3b2bd0f6Slogwang struct ng_etffilter { 77*3b2bd0f6Slogwang char matchhook[NG_HOOKSIZ]; /* hook name */ 78*3b2bd0f6Slogwang u_int16_t ethertype; /* this ethertype to this hook */ 79*3b2bd0f6Slogwang }; 80*3b2bd0f6Slogwang 81*3b2bd0f6Slogwang /* 82*3b2bd0f6Slogwang * This needs to be kept in sync with the above structure definition 83*3b2bd0f6Slogwang */ 84*3b2bd0f6Slogwang #define NG_ETF_FILTER_TYPE_INFO { \ 85*3b2bd0f6Slogwang { "matchhook", &ng_parse_hookbuf_type }, \ 86*3b2bd0f6Slogwang { "ethertype", &ng_parse_uint16_type }, \ 87*3b2bd0f6Slogwang { NULL } \ 88*3b2bd0f6Slogwang } 89*3b2bd0f6Slogwang 90*3b2bd0f6Slogwang #endif /* _NETGRAPH_NG_ETF_H_ */ 91