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: releng/5.1/sys/netgraph/ng_pptpgre.h 97685 2002-05-31 23:48:03Z archie $
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_ */
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