Annotation of sys/netinet/ip_ah.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: ip_ah.h,v 1.31 2004/02/17 12:07:45 markus Exp $ */
2: /*
3: * The authors of this code are John Ioannidis (ji@tla.org),
4: * Angelos D. Keromytis (kermit@csd.uch.gr) and
5: * Niels Provos (provos@physnet.uni-hamburg.de).
6: *
7: * The original version of this code was written by John Ioannidis
8: * for BSD/OS in Athens, Greece, in November 1995.
9: *
10: * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
11: * by Angelos D. Keromytis.
12: *
13: * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
14: * and Niels Provos.
15: *
16: * Additional features in 1999 by Angelos D. Keromytis.
17: *
18: * Copyright (C) 1995, 1996, 1997, 1998, 1999 John Ioannidis,
19: * Angelos D. Keromytis and Niels Provos.
20: * Copyright (c) 2001 Angelos D. Keromytis.
21: *
22: * Permission to use, copy, and modify this software with or without fee
23: * is hereby granted, provided that this entire notice is included in
24: * all copies of any software which is or includes a copy or
25: * modification of this software.
26: * You may use this code under the GNU public license if you so wish. Please
27: * contribute changes back to the authors under this freer than GPL license
28: * so that we may further the use of strong encryption without limitations to
29: * all.
30: *
31: * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
32: * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
33: * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
34: * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
35: * PURPOSE.
36: */
37:
38: #ifndef _NETINET_IP_AH_H_
39: #define _NETINET_IP_AH_H_
40:
41: struct ahstat
42: {
43: u_int32_t ahs_hdrops; /* Packet shorter than header shows */
44: u_int32_t ahs_nopf; /* Protocol family not supported */
45: u_int32_t ahs_notdb;
46: u_int32_t ahs_badkcr;
47: u_int32_t ahs_badauth;
48: u_int32_t ahs_noxform;
49: u_int32_t ahs_qfull;
50: u_int32_t ahs_wrap;
51: u_int32_t ahs_replay;
52: u_int32_t ahs_badauthl; /* Bad authenticator length */
53: u_int32_t ahs_input; /* Input AH packets */
54: u_int32_t ahs_output; /* Output AH packets */
55: u_int32_t ahs_invalid; /* Trying to use an invalid TDB */
56: u_int64_t ahs_ibytes; /* Input bytes */
57: u_int64_t ahs_obytes; /* Output bytes */
58: u_int32_t ahs_toobig; /* Packet got larger than IP_MAXPACKET */
59: u_int32_t ahs_pdrops; /* Packet blocked due to policy */
60: u_int32_t ahs_crypto; /* Crypto processing failure */
61: };
62:
63: struct ah
64: {
65: u_int8_t ah_nh;
66: u_int8_t ah_hl;
67: u_int16_t ah_rv;
68: u_int32_t ah_spi;
69: u_int32_t ah_rpl; /* We may not use this, if we're using old xforms */
70: };
71:
72: /* Length of base AH header */
73: #define AH_FLENGTH 8
74:
75: /* Size of the largest hash function output used in AH-new, in bytes */
76: #define AH_MAX_HASHLEN 20
77:
78: /*
79: * Names for AH sysctl objects
80: */
81: #define AHCTL_ENABLE 1 /* Enable AH processing */
82: #define AHCTL_MAXID 2
83:
84: #define AHCTL_NAMES { \
85: { 0, 0 }, \
86: { "enable", CTLTYPE_INT }, \
87: }
88:
89: #define AHCTL_VARS { \
90: NULL, \
91: &ah_enable, \
92: }
93:
94: #ifdef _KERNEL
95: extern int ah_enable;
96: extern struct ahstat ahstat;
97: #endif /* _KERNEL */
98: #endif /* _NETINET_IP_AH_H_ */
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