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 *
40 * $FreeBSD: releng/6.3/sys/netgraph/ng_pptpgre.h 139823 2005-01-07 01:45:51Z imp $
41 * $Whistle: ng_pptpgre.h,v 1.3 1999/12/08 00:11:36 archie Exp $
42 */
43
44 #ifndef _NETGRAPH_NG_PPTPGRE_H_
45 #define _NETGRAPH_NG_PPTPGRE_H_
46
47 /* Node type name and magic cookie */
48 #define NG_PPTPGRE_NODE_TYPE "pptpgre"
49 #define NGM_PPTPGRE_COOKIE 1082548365
50
51 /* Hook names */
52 #define NG_PPTPGRE_HOOK_UPPER "upper" /* to upper layers */
53 #define NG_PPTPGRE_HOOK_LOWER "lower" /* to lower layers */
54
55 /* Configuration for a session */
56 struct ng_pptpgre_conf {
57 u_char enabled; /* enables traffic flow */
58 u_char enableDelayedAck;/* enables delayed acks */
59 u_char enableAlwaysAck;/* always include ack with data */
60 u_char enableWindowing;/* enable windowing algorithm */
61 u_int16_t cid; /* my call id */
62 u_int16_t peerCid; /* peer call id */
63 u_int16_t recvWin; /* peer recv window size */
64 u_int16_t peerPpd; /* peer packet processing delay
65 (in units of 1/10 of a second) */
66 };
67
68 /* Keep this in sync with the above structure definition */
69 #define NG_PPTPGRE_CONF_TYPE_INFO { \
70 { "enabled", &ng_parse_uint8_type }, \
71 { "enableDelayedAck", &ng_parse_uint8_type }, \
72 { "enableAlwaysAck", &ng_parse_uint8_type }, \
73 { "enableWindowing", &ng_parse_uint8_type }, \
74 { "cid", &ng_parse_hint16_type }, \
75 { "peerCid", &ng_parse_hint16_type }, \
76 { "recvWin", &ng_parse_uint16_type }, \
77 { "peerPpd", &ng_parse_uint16_type }, \
78 { NULL } \
79 }
80
81 /* Statistics struct */
82 struct ng_pptpgre_stats {
83 u_int32_t xmitPackets; /* number of GRE packets xmit */
84 u_int32_t xmitOctets; /* number of GRE octets xmit */
85 u_int32_t xmitLoneAcks; /* ack-only packets transmitted */
86 u_int32_t xmitDrops; /* xmits dropped due to full window */
87 u_int32_t xmitTooBig; /* xmits dropped because too big */
88 u_int32_t recvPackets; /* number of GRE packets rec'd */
89 u_int32_t recvOctets; /* number of GRE octets rec'd */
90 u_int32_t recvRunts; /* too short packets rec'd */
91 u_int32_t recvBadGRE; /* bogus packets rec'd (bad GRE hdr) */
92 u_int32_t recvBadAcks; /* bogus ack's rec'd in GRE header */
93 u_int32_t recvBadCID; /* pkts with unknown call ID rec'd */
94 u_int32_t recvOutOfOrder; /* packets rec'd out of order */
95 u_int32_t recvDuplicates; /* packets rec'd with duplicate seq # */
96 u_int32_t recvLoneAcks; /* ack-only packets rec'd */
97 u_int32_t recvAckTimeouts; /* times peer failed to ack in time */
98 u_int32_t memoryFailures; /* times we couldn't allocate memory */
99 };
100
101 /* Keep this in sync with the above structure definition */
102 #define NG_PPTPGRE_STATS_TYPE_INFO { \
103 { "xmitPackets", &ng_parse_uint32_type }, \
104 { "xmitOctets", &ng_parse_uint32_type }, \
105 { "xmitLoneAcks", &ng_parse_uint32_type }, \
106 { "xmitDrops", &ng_parse_uint32_type }, \
107 { "xmitTooBig", &ng_parse_uint32_type }, \
108 { "recvPackets", &ng_parse_uint32_type }, \
109 { "recvOctets", &ng_parse_uint32_type }, \
110 { "recvRunts", &ng_parse_uint32_type }, \
111 { "recvBadGRE", &ng_parse_uint32_type }, \
112 { "recvBadAcks", &ng_parse_uint32_type }, \
113 { "recvBadCID", &ng_parse_uint32_type }, \
114 { "recvOutOfOrder", &ng_parse_uint32_type }, \
115 { "recvDuplicates", &ng_parse_uint32_type }, \
116 { "recvLoneAcks", &ng_parse_uint32_type }, \
117 { "recvAckTimeouts", &ng_parse_uint32_type }, \
118 { "memoryFailures", &ng_parse_uint32_type }, \
119 { NULL } \
120 }
121
122 /* Netgraph commands */
123 enum {
124 NGM_PPTPGRE_SET_CONFIG = 1, /* supply a struct ng_pptpgre_conf */
125 NGM_PPTPGRE_GET_CONFIG, /* returns a struct ng_pptpgre_conf */
126 NGM_PPTPGRE_GET_STATS, /* returns struct ng_pptpgre_stats */
127 NGM_PPTPGRE_CLR_STATS, /* clears stats */
128 NGM_PPTPGRE_GETCLR_STATS, /* returns & clears stats */
129 };
130
131 #endif /* _NETGRAPH_NG_PPTPGRE_H_ */
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