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