1*0a66de84SNuno Antunes /*- 2*0a66de84SNuno Antunes * ng_tcpmss.h 3*0a66de84SNuno Antunes * 4*0a66de84SNuno Antunes * Copyright (c) 2004, Alexey Popov <lollypop@flexuser.ru> 5*0a66de84SNuno Antunes * All rights reserved. 6*0a66de84SNuno Antunes * 7*0a66de84SNuno Antunes * Redistribution and use in source and binary forms, with or without 8*0a66de84SNuno Antunes * modification, are permitted provided that the following conditions 9*0a66de84SNuno Antunes * are met: 10*0a66de84SNuno Antunes * 1. Redistributions of source code must retain the above copyright 11*0a66de84SNuno Antunes * notice unmodified, this list of conditions, and the following 12*0a66de84SNuno Antunes * disclaimer. 13*0a66de84SNuno Antunes * 2. Redistributions in binary form must reproduce the above copyright 14*0a66de84SNuno Antunes * notice, this list of conditions and the following disclaimer in the 15*0a66de84SNuno Antunes * documentation and/or other materials provided with the distribution. 16*0a66de84SNuno Antunes * 17*0a66de84SNuno Antunes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18*0a66de84SNuno Antunes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*0a66de84SNuno Antunes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*0a66de84SNuno Antunes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21*0a66de84SNuno Antunes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*0a66de84SNuno Antunes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*0a66de84SNuno Antunes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*0a66de84SNuno Antunes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*0a66de84SNuno Antunes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*0a66de84SNuno Antunes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*0a66de84SNuno Antunes * SUCH DAMAGE. 28*0a66de84SNuno Antunes * 29*0a66de84SNuno Antunes * $FreeBSD: src/sys/netgraph/ng_tcpmss.h,v 1.1 2005/06/10 08:02:34 glebius Exp $ 30*0a66de84SNuno Antunes * $DragonFly: src/sys/netgraph7/ng_tcpmss.h,v 1.2 2008/06/26 23:05:35 dillon Exp $ 31*0a66de84SNuno Antunes */ 32*0a66de84SNuno Antunes 33*0a66de84SNuno Antunes #ifndef _NETGRAPH_TCPMSS_H_ 34*0a66de84SNuno Antunes #define _NETGRAPH_TCPMSS_H_ 35*0a66de84SNuno Antunes 36*0a66de84SNuno Antunes /* Node type name and magic cookie */ 37*0a66de84SNuno Antunes #define NG_TCPMSS_NODE_TYPE "tcpmss" 38*0a66de84SNuno Antunes #define NGM_TCPMSS_COOKIE 1097623478 39*0a66de84SNuno Antunes 40*0a66de84SNuno Antunes /* Statistics structure for one hook. */ 41*0a66de84SNuno Antunes struct ng_tcpmss_hookstat { 42*0a66de84SNuno Antunes uint64_t Octets; 43*0a66de84SNuno Antunes uint64_t Packets; 44*0a66de84SNuno Antunes uint16_t maxMSS; 45*0a66de84SNuno Antunes uint64_t SYNPkts; 46*0a66de84SNuno Antunes uint64_t FixedPkts; 47*0a66de84SNuno Antunes }; 48*0a66de84SNuno Antunes 49*0a66de84SNuno Antunes /* Keep this in sync with the above structure definition. */ 50*0a66de84SNuno Antunes #define NG_TCPMSS_HOOKSTAT_INFO { \ 51*0a66de84SNuno Antunes { "Octets", &ng_parse_uint64_type }, \ 52*0a66de84SNuno Antunes { "Packets", &ng_parse_uint64_type }, \ 53*0a66de84SNuno Antunes { "maxMSS", &ng_parse_uint16_type }, \ 54*0a66de84SNuno Antunes { "SYNPkts", &ng_parse_uint64_type }, \ 55*0a66de84SNuno Antunes { "FixedPkts", &ng_parse_uint64_type }, \ 56*0a66de84SNuno Antunes { NULL } \ 57*0a66de84SNuno Antunes } 58*0a66de84SNuno Antunes 59*0a66de84SNuno Antunes 60*0a66de84SNuno Antunes /* Structure for NGM_TCPMSS_CONFIG. */ 61*0a66de84SNuno Antunes struct ng_tcpmss_config { 62*0a66de84SNuno Antunes char inHook[NG_HOOKSIZ]; 63*0a66de84SNuno Antunes char outHook[NG_HOOKSIZ]; 64*0a66de84SNuno Antunes uint16_t maxMSS; 65*0a66de84SNuno Antunes }; 66*0a66de84SNuno Antunes 67*0a66de84SNuno Antunes /* Keep this in sync with the above structure definition. */ 68*0a66de84SNuno Antunes #define NG_TCPMSS_CONFIG_INFO { \ 69*0a66de84SNuno Antunes { "inHook", &ng_parse_hookbuf_type }, \ 70*0a66de84SNuno Antunes { "outHook", &ng_parse_hookbuf_type }, \ 71*0a66de84SNuno Antunes { "maxMSS", &ng_parse_uint16_type }, \ 72*0a66de84SNuno Antunes { NULL } \ 73*0a66de84SNuno Antunes } 74*0a66de84SNuno Antunes 75*0a66de84SNuno Antunes /* Netgraph commands */ 76*0a66de84SNuno Antunes enum { 77*0a66de84SNuno Antunes NGM_TCPMSS_GET_STATS = 1, /* Get stats. */ 78*0a66de84SNuno Antunes NGM_TCPMSS_CLR_STATS, /* Clear stats. */ 79*0a66de84SNuno Antunes NGM_TCPMSS_GETCLR_STATS, /* "Atomically" get and clear stats. */ 80*0a66de84SNuno Antunes NGM_TCPMSS_CONFIG /* Set configuration. */ 81*0a66de84SNuno Antunes }; 82*0a66de84SNuno Antunes 83*0a66de84SNuno Antunes #endif /* _NETGRAPH_TCPMSS_H_ */ 84