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/*
* 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>
*
* $FreeBSD$
* $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 */
};
/* 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 }, \
{ 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_ */
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