/* * ng_pptpgre.h */ /*- * Copyright (c) 1999 Whistle Communications, Inc. * All rights reserved. * * Subject to the following obligations and disclaimer of warranty, use and * redistribution of this software, in source or object code forms, with or * without modifications are expressly permitted by Whistle Communications; * provided, however, that: * 1. Any and all reproductions of the source or object code must include the * copyright notice above and the following disclaimer of warranties; and * 2. No rights are granted, in any manner or form, to use Whistle * Communications, Inc. trademarks, including the mark "WHISTLE * COMMUNICATIONS" on advertising, endorsements, or otherwise except as * such appears in the above copyright notice or in the software. * * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY * OF SUCH DAMAGE. * * Author: Archie Cobbs <archie@freebsd.org> * $Whistle: ng_pptpgre.h,v 1.3 1999/12/08 00:11:36 archie Exp $ */ #ifndef _NETGRAPH_NG_PPTPGRE_H_ #define _NETGRAPH_NG_PPTPGRE_H_ /* Node type name and magic cookie */ #define NG_PPTPGRE_NODE_TYPE "pptpgre" #define NGM_PPTPGRE_COOKIE 1082548365 /* Hook names */ #define NG_PPTPGRE_HOOK_UPPER "upper" /* to upper layers */ #define NG_PPTPGRE_HOOK_LOWER "lower" /* to lower layers */ /* Session hooks: prefix plus hex session ID, e.g., "session_3e14" */ #define NG_PPTPGRE_HOOK_SESSION_P "session_" #define NG_PPTPGRE_HOOK_SESSION_F "session_%04x" /* Configuration for a session */ struct ng_pptpgre_conf { u_char enabled; /* enables traffic flow */ u_char enableDelayedAck;/* enables delayed acks */ u_char enableAlwaysAck;/* always include ack with data */ u_char enableWindowing;/* enable windowing algorithm */ u_int16_t cid; /* my call id */ u_int16_t peerCid; /* peer call id */ u_int16_t recvWin; /* peer recv window size */ u_int16_t peerPpd; /* peer packet processing delay (in units of 1/10 of a second) */ }; /* Keep this in sync with the above structure definition */ #define NG_PPTPGRE_CONF_TYPE_INFO { \ { "enabled", &ng_parse_uint8_type }, \ { "enableDelayedAck", &ng_parse_uint8_type }, \ { "enableAlwaysAck", &ng_parse_uint8_type }, \ { "enableWindowing", &ng_parse_uint8_type }, \ { "cid", &ng_parse_hint16_type }, \ { "peerCid", &ng_parse_hint16_type }, \ { "recvWin", &ng_parse_uint16_type }, \ { "peerPpd", &ng_parse_uint16_type }, \ { NULL } \ } /* Statistics struct */ struct ng_pptpgre_stats { u_int32_t xmitPackets; /* number of GRE packets xmit */ u_int32_t xmitOctets; /* number of GRE octets xmit */ u_int32_t xmitLoneAcks; /* ack-only packets transmitted */ u_int32_t xmitDrops; /* xmits dropped due to full window */ u_int32_t xmitTooBig; /* xmits dropped because too big */ u_int32_t recvPackets; /* number of GRE packets rec'd */ u_int32_t recvOctets; /* number of GRE octets rec'd */ u_int32_t recvRunts; /* too short packets rec'd */ u_int32_t recvBadGRE; /* bogus packets rec'd (bad GRE hdr) */ u_int32_t recvBadAcks; /* bogus ack's rec'd in GRE header */ u_int32_t recvBadCID; /* pkts with unknown call ID rec'd */ u_int32_t recvOutOfOrder; /* packets rec'd out of order */ u_int32_t recvDuplicates; /* packets rec'd with duplicate seq # */ u_int32_t recvLoneAcks; /* ack-only packets rec'd */ u_int32_t recvAckTimeouts; /* times peer failed to ack in time */ u_int32_t memoryFailures; /* times we couldn't allocate memory */ u_int32_t recvReorderOverflow; /* times we dropped GRE packet due to overflow of reorder queue */ u_int32_t recvReorderTimeouts; /* times we flushed reorder queue due to timeout */ }; /* Keep this in sync with the above structure definition */ #define NG_PPTPGRE_STATS_TYPE_INFO { \ { "xmitPackets", &ng_parse_uint32_type }, \ { "xmitOctets", &ng_parse_uint32_type }, \ { "xmitLoneAcks", &ng_parse_uint32_type }, \ { "xmitDrops", &ng_parse_uint32_type }, \ { "xmitTooBig", &ng_parse_uint32_type }, \ { "recvPackets", &ng_parse_uint32_type }, \ { "recvOctets", &ng_parse_uint32_type }, \ { "recvRunts", &ng_parse_uint32_type }, \ { "recvBadGRE", &ng_parse_uint32_type }, \ { "recvBadAcks", &ng_parse_uint32_type }, \ { "recvBadCID", &ng_parse_uint32_type }, \ { "recvOutOfOrder", &ng_parse_uint32_type }, \ { "recvDuplicates", &ng_parse_uint32_type }, \ { "recvLoneAcks", &ng_parse_uint32_type }, \ { "recvAckTimeouts", &ng_parse_uint32_type }, \ { "memoryFailures", &ng_parse_uint32_type }, \ { "recvReorderOverflow", &ng_parse_uint32_type}, \ { "recvReorderTimeouts", &ng_parse_uint32_type}, \ { NULL } \ } /* Netgraph commands */ enum { NGM_PPTPGRE_SET_CONFIG = 1, /* supply a struct ng_pptpgre_conf */ NGM_PPTPGRE_GET_CONFIG, /* returns a struct ng_pptpgre_conf */ NGM_PPTPGRE_GET_STATS, /* returns struct ng_pptpgre_stats */ NGM_PPTPGRE_CLR_STATS, /* clears stats */ NGM_PPTPGRE_GETCLR_STATS, /* returns & clears stats */ }; #endif /* _NETGRAPH_NG_PPTPGRE_H_ */
