1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/* $OpenBSD: ip_ipcomp.h,v 1.10 2017/11/08 16:29:20 visa Exp $ */
/*
* Copyright (c) 2001 Jean-Jacques Bernard-Gundol (jj@wabbitt.org)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 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 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* IP payload compression protocol (IPComp), see RFC 2393 */
#ifndef _NETINET_IP_IPCOMP_H_
#define _NETINET_IP_IPCOMP_H_
struct ipcompstat {
uint64_t ipcomps_hdrops; /* Packet shorter than header shows */
uint64_t ipcomps_nopf; /* Protocol family not supported */
uint64_t ipcomps_notdb;
uint64_t ipcomps_badkcr;
uint64_t ipcomps_qfull;
uint64_t ipcomps_noxform;
uint64_t ipcomps_wrap;
uint64_t ipcomps_input; /* Input IPcomp packets */
uint64_t ipcomps_output; /* Output IPcomp packets */
uint64_t ipcomps_invalid; /* Trying to use an invalid
* TDB */
uint64_t ipcomps_ibytes; /* Input bytes */
uint64_t ipcomps_obytes; /* Output bytes */
uint64_t ipcomps_toobig; /* Packet got larger than
* IP_MAXPACKET */
uint64_t ipcomps_pdrops; /* Packet blocked due to policy */
uint64_t ipcomps_crypto; /* "Crypto" processing failure */
uint64_t ipcomps_minlen; /* packets too short for compress */
uint64_t ipcomps_outfail; /* Packet output failure */
};
/* IPCOMP header */
struct ipcomp {
u_int8_t ipcomp_nh; /* Next header */
u_int8_t ipcomp_flags; /* Flags: reserved field: 0 */
u_int16_t ipcomp_cpi; /* Compression Parameter Index,
* Network order */
};
/* Length of IPCOMP header */
#define IPCOMP_HLENGTH 4
/*
* Names for IPCOMP sysctl objects
*/
#define IPCOMPCTL_ENABLE 1 /* Enable COMP processing */
#define IPCOMPCTL_STATS 2 /* COMP stats */
#define IPCOMPCTL_MAXID 3
#define IPCOMPCTL_NAMES { \
{ 0, 0 }, \
{ "enable", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
}
#define IPCOMPCTL_VARS { \
NULL, \
&ipcomp_enable, \
NULL \
}
#ifdef _KERNEL
#include <sys/percpu.h>
enum ipcomp_counters {
ipcomps_hdrops, /* Packet shorter than header shows */
ipcomps_nopf, /* Protocol family not supported */
ipcomps_notdb,
ipcomps_badkcr,
ipcomps_qfull,
ipcomps_noxform,
ipcomps_wrap,
ipcomps_input, /* Input IPcomp packets */
ipcomps_output, /* Output IPcomp packets */
ipcomps_invalid, /* Trying to use an invalid
* TDB */
ipcomps_ibytes, /* Input bytes */
ipcomps_obytes, /* Output bytes */
ipcomps_toobig, /* Packet got larger than
* IP_MAXPACKET */
ipcomps_pdrops, /* Packet blocked due to policy */
ipcomps_crypto, /* "Crypto" processing failure */
ipcomps_minlen, /* packets too short for compress */
ipcomps_outfail, /* Packet output failure */
ipcomps_ncounters
};
extern struct cpumem *ipcompcounters;
static inline void
ipcompstat_inc(enum ipcomp_counters c)
{
counters_inc(ipcompcounters, c);
}
static inline void
ipcompstat_add(enum ipcomp_counters c, uint64_t v)
{
counters_add(ipcompcounters, c, v);
}
extern int ipcomp_enable;
#endif /* _KERNEL */
#endif /* _NETINET_IP_IPCOMP_H_ */
|
