1 /* 2 * ng_pptpgre.h 3 */ 4 5 /*- 6 * Copyright (c) 1999 Whistle Communications, Inc. 7 * All rights reserved. 8 * 9 * Subject to the following obligations and disclaimer of warranty, use and 10 * redistribution of this software, in source or object code forms, with or 11 * without modifications are expressly permitted by Whistle Communications; 12 * provided, however, that: 13 * 1. Any and all reproductions of the source or object code must include the 14 * copyright notice above and the following disclaimer of warranties; and 15 * 2. No rights are granted, in any manner or form, to use Whistle 16 * Communications, Inc. trademarks, including the mark "WHISTLE 17 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18 * such appears in the above copyright notice or in the software. 19 * 20 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36 * OF SUCH DAMAGE. 37 * 38 * Author: Archie Cobbs <archie@freebsd.org> 39 * $Whistle: ng_pptpgre.h,v 1.3 1999/12/08 00:11:36 archie Exp $ 40 */ 41 42 #ifndef _NETGRAPH_NG_PPTPGRE_H_ 43 #define _NETGRAPH_NG_PPTPGRE_H_ 44 45 /* Node type name and magic cookie */ 46 #define NG_PPTPGRE_NODE_TYPE "pptpgre" 47 #define NGM_PPTPGRE_COOKIE 1082548365 48 49 /* Hook names */ 50 #define NG_PPTPGRE_HOOK_UPPER "upper" /* to upper layers */ 51 #define NG_PPTPGRE_HOOK_LOWER "lower" /* to lower layers */ 52 53 /* Session hooks: prefix plus hex session ID, e.g., "session_3e14" */ 54 #define NG_PPTPGRE_HOOK_SESSION_P "session_" 55 #define NG_PPTPGRE_HOOK_SESSION_F "session_%04x" 56 57 /* Configuration for a session */ 58 struct ng_pptpgre_conf { 59 u_char enabled; /* enables traffic flow */ 60 u_char enableDelayedAck;/* enables delayed acks */ 61 u_char enableAlwaysAck;/* always include ack with data */ 62 u_char enableWindowing;/* enable windowing algorithm */ 63 u_int16_t cid; /* my call id */ 64 u_int16_t peerCid; /* peer call id */ 65 u_int16_t recvWin; /* peer recv window size */ 66 u_int16_t peerPpd; /* peer packet processing delay 67 (in units of 1/10 of a second) */ 68 }; 69 70 /* Keep this in sync with the above structure definition */ 71 #define NG_PPTPGRE_CONF_TYPE_INFO { \ 72 { "enabled", &ng_parse_uint8_type }, \ 73 { "enableDelayedAck", &ng_parse_uint8_type }, \ 74 { "enableAlwaysAck", &ng_parse_uint8_type }, \ 75 { "enableWindowing", &ng_parse_uint8_type }, \ 76 { "cid", &ng_parse_hint16_type }, \ 77 { "peerCid", &ng_parse_hint16_type }, \ 78 { "recvWin", &ng_parse_uint16_type }, \ 79 { "peerPpd", &ng_parse_uint16_type }, \ 80 { NULL } \ 81 } 82 83 /* Statistics struct */ 84 struct ng_pptpgre_stats { 85 u_int32_t xmitPackets; /* number of GRE packets xmit */ 86 u_int32_t xmitOctets; /* number of GRE octets xmit */ 87 u_int32_t xmitLoneAcks; /* ack-only packets transmitted */ 88 u_int32_t xmitDrops; /* xmits dropped due to full window */ 89 u_int32_t xmitTooBig; /* xmits dropped because too big */ 90 u_int32_t recvPackets; /* number of GRE packets rec'd */ 91 u_int32_t recvOctets; /* number of GRE octets rec'd */ 92 u_int32_t recvRunts; /* too short packets rec'd */ 93 u_int32_t recvBadGRE; /* bogus packets rec'd (bad GRE hdr) */ 94 u_int32_t recvBadAcks; /* bogus ack's rec'd in GRE header */ 95 u_int32_t recvBadCID; /* pkts with unknown call ID rec'd */ 96 u_int32_t recvOutOfOrder; /* packets rec'd out of order */ 97 u_int32_t recvDuplicates; /* packets rec'd with duplicate seq # */ 98 u_int32_t recvLoneAcks; /* ack-only packets rec'd */ 99 u_int32_t recvAckTimeouts; /* times peer failed to ack in time */ 100 u_int32_t memoryFailures; /* times we couldn't allocate memory */ 101 u_int32_t recvReorderOverflow; /* times we dropped GRE packet 102 due to overflow of reorder queue */ 103 u_int32_t recvReorderTimeouts; /* times we flushed reorder queue 104 due to timeout */ 105 }; 106 107 /* Keep this in sync with the above structure definition */ 108 #define NG_PPTPGRE_STATS_TYPE_INFO { \ 109 { "xmitPackets", &ng_parse_uint32_type }, \ 110 { "xmitOctets", &ng_parse_uint32_type }, \ 111 { "xmitLoneAcks", &ng_parse_uint32_type }, \ 112 { "xmitDrops", &ng_parse_uint32_type }, \ 113 { "xmitTooBig", &ng_parse_uint32_type }, \ 114 { "recvPackets", &ng_parse_uint32_type }, \ 115 { "recvOctets", &ng_parse_uint32_type }, \ 116 { "recvRunts", &ng_parse_uint32_type }, \ 117 { "recvBadGRE", &ng_parse_uint32_type }, \ 118 { "recvBadAcks", &ng_parse_uint32_type }, \ 119 { "recvBadCID", &ng_parse_uint32_type }, \ 120 { "recvOutOfOrder", &ng_parse_uint32_type }, \ 121 { "recvDuplicates", &ng_parse_uint32_type }, \ 122 { "recvLoneAcks", &ng_parse_uint32_type }, \ 123 { "recvAckTimeouts", &ng_parse_uint32_type }, \ 124 { "memoryFailures", &ng_parse_uint32_type }, \ 125 { "recvReorderOverflow", &ng_parse_uint32_type}, \ 126 { "recvReorderTimeouts", &ng_parse_uint32_type}, \ 127 { NULL } \ 128 } 129 130 /* Netgraph commands */ 131 enum { 132 NGM_PPTPGRE_SET_CONFIG = 1, /* supply a struct ng_pptpgre_conf */ 133 NGM_PPTPGRE_GET_CONFIG, /* returns a struct ng_pptpgre_conf */ 134 NGM_PPTPGRE_GET_STATS, /* returns struct ng_pptpgre_stats */ 135 NGM_PPTPGRE_CLR_STATS, /* clears stats */ 136 NGM_PPTPGRE_GETCLR_STATS, /* returns & clears stats */ 137 }; 138 139 #endif /* _NETGRAPH_NG_PPTPGRE_H_ */ 140