1 2 /* 3 * ng_pptpgre.h 4 * 5 * Copyright (c) 1999 Whistle Communications, Inc. 6 * All rights reserved. 7 * 8 * Subject to the following obligations and disclaimer of warranty, use and 9 * redistribution of this software, in source or object code forms, with or 10 * without modifications are expressly permitted by Whistle Communications; 11 * provided, however, that: 12 * 1. Any and all reproductions of the source or object code must include the 13 * copyright notice above and the following disclaimer of warranties; and 14 * 2. No rights are granted, in any manner or form, to use Whistle 15 * Communications, Inc. trademarks, including the mark "WHISTLE 16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 17 * such appears in the above copyright notice or in the software. 18 * 19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 * 37 * Author: Archie Cobbs <archie@freebsd.org> 38 * 39 * $FreeBSD$ 40 * $Whistle: ng_pptpgre.h,v 1.3 1999/12/08 00:11:36 archie Exp $ 41 */ 42 43 #ifndef _NETGRAPH_PPTPGRE_H_ 44 #define _NETGRAPH_PPTPGRE_H_ 45 46 /* Node type name and magic cookie */ 47 #define NG_PPTPGRE_NODE_TYPE "pptpgre" 48 #define NGM_PPTPGRE_COOKIE 942783547 49 50 /* Hook names */ 51 #define NG_PPTPGRE_HOOK_UPPER "upper" /* to upper layers */ 52 #define NG_PPTPGRE_HOOK_LOWER "lower" /* to lower layers */ 53 54 /* Configuration for a session */ 55 struct ng_pptpgre_conf { 56 u_char enabled; /* enables traffic flow */ 57 u_char enableDelayedAck;/* enables delayed acks */ 58 u_char enableAlwaysAck;/* always include ack with data */ 59 u_int16_t cid; /* my call id */ 60 u_int16_t peerCid; /* peer call id */ 61 u_int16_t recvWin; /* peer recv window size */ 62 u_int16_t peerPpd; /* peer packet processing delay 63 (in units of 1/10 of a second) */ 64 }; 65 66 /* Keep this in sync with the above structure definition */ 67 #define NG_PPTPGRE_CONF_TYPE_INFO { \ 68 { "enabled", &ng_parse_uint8_type }, \ 69 { "enableDelayedAck", &ng_parse_uint8_type }, \ 70 { "enableAlwaysAck", &ng_parse_uint8_type }, \ 71 { "cid", &ng_parse_hint16_type }, \ 72 { "peerCid", &ng_parse_hint16_type }, \ 73 { "recvWin", &ng_parse_uint16_type }, \ 74 { "peerPpd", &ng_parse_uint16_type }, \ 75 { NULL } \ 76 } 77 78 /* Statistics struct */ 79 struct ng_pptpgre_stats { 80 u_int32_t xmitPackets; /* number of GRE packets xmit */ 81 u_int32_t xmitOctets; /* number of GRE octets xmit */ 82 u_int32_t xmitLoneAcks; /* ack-only packets transmitted */ 83 u_int32_t xmitDrops; /* xmits dropped due to full window */ 84 u_int32_t xmitTooBig; /* xmits dropped because too big */ 85 u_int32_t recvPackets; /* number of GRE packets rec'd */ 86 u_int32_t recvOctets; /* number of GRE octets rec'd */ 87 u_int32_t recvRunts; /* too short packets rec'd */ 88 u_int32_t recvBadGRE; /* bogus packets rec'd (bad GRE hdr) */ 89 u_int32_t recvBadAcks; /* bogus ack's rec'd in GRE header */ 90 u_int32_t recvBadCID; /* pkts with unknown call ID rec'd */ 91 u_int32_t recvOutOfOrder; /* packets rec'd out of order */ 92 u_int32_t recvDuplicates; /* packets rec'd with duplicate seq # */ 93 u_int32_t recvLoneAcks; /* ack-only packets rec'd */ 94 u_int32_t recvAckTimeouts; /* times peer failed to ack in time */ 95 u_int32_t memoryFailures; /* times we couldn't allocate memory */ 96 }; 97 98 /* Keep this in sync with the above structure definition */ 99 #define NG_PPTPGRE_STATS_TYPE_INFO { \ 100 { "xmitPackets", &ng_parse_uint32_type }, \ 101 { "xmitOctets", &ng_parse_uint32_type }, \ 102 { "xmitLoneAcks", &ng_parse_uint32_type }, \ 103 { "xmitDrops", &ng_parse_uint32_type }, \ 104 { "xmitTooBig", &ng_parse_uint32_type }, \ 105 { "recvPackets", &ng_parse_uint32_type }, \ 106 { "recvOctets", &ng_parse_uint32_type }, \ 107 { "recvRunts", &ng_parse_uint32_type }, \ 108 { "recvBadGRE", &ng_parse_uint32_type }, \ 109 { "recvBadAcks", &ng_parse_uint32_type }, \ 110 { "recvBadCID", &ng_parse_uint32_type }, \ 111 { "recvOutOfOrder", &ng_parse_uint32_type }, \ 112 { "recvDuplicates", &ng_parse_uint32_type }, \ 113 { "recvLoneAcks", &ng_parse_uint32_type }, \ 114 { "recvAckTimeouts", &ng_parse_uint32_type }, \ 115 { "memoryFailures", &ng_parse_uint32_type }, \ 116 { NULL } \ 117 } 118 119 /* Netgraph commands */ 120 enum { 121 NGM_PPTPGRE_SET_CONFIG = 1, /* supply a struct ng_pptpgre_conf */ 122 NGM_PPTPGRE_GET_CONFIG, /* returns a struct ng_pptpgre_conf */ 123 NGM_PPTPGRE_GET_STATS, /* returns struct ng_pptpgre_stats */ 124 NGM_PPTPGRE_CLR_STATS, /* clears stats */ 125 NGM_PPTPGRE_GETCLR_STATS, /* returns & clears stats */ 126 }; 127 128 #endif /* _NETGRAPH_PPTPGRE_H_ */ 129