1 /* $OpenBSD: ip_ah.h,v 1.29 2002/06/09 16:26:10 itojun 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 _NETIPSEC_AH_VAR_H_ 39 #define _NETIPSEC_AH_VAR_H_ 40 41 /* 42 * These define the algorithm indices into the histogram. They're 43 * presently based on the PF_KEY v2 protocol values which is bogus; 44 * they should be decoupled from the protocol at which time we can 45 * pack them and reduce the size of the array to a minimum. 46 */ 47 #define AH_ALG_MAX 16 48 49 struct ahstat { 50 uint64_t ahs_hdrops; /* Packet shorter than header shows */ 51 uint64_t ahs_nopf; /* Protocol family not supported */ 52 uint64_t ahs_notdb; 53 uint64_t ahs_badkcr; 54 uint64_t ahs_badauth; 55 uint64_t ahs_noxform; 56 uint64_t ahs_qfull; 57 uint64_t ahs_wrap; 58 uint64_t ahs_replay; 59 uint64_t ahs_badauthl; /* Bad authenticator length */ 60 uint64_t ahs_input; /* Input AH packets */ 61 uint64_t ahs_output; /* Output AH packets */ 62 uint64_t ahs_invalid; /* Trying to use an invalid TDB */ 63 uint64_t ahs_ibytes; /* Input bytes */ 64 uint64_t ahs_obytes; /* Output bytes */ 65 uint64_t ahs_toobig; /* Packet got larger than IP_MAXPACKET */ 66 uint64_t ahs_pdrops; /* Packet blocked due to policy */ 67 uint64_t ahs_crypto; /* Crypto processing failure */ 68 uint64_t ahs_tunnel; /* Tunnel sanity check failure */ 69 uint64_t ahs_hist[AH_ALG_MAX]; /* Per-algorithm op count */ 70 }; 71 72 #ifdef _KERNEL 73 #include <sys/counter.h> 74 #include <netinet/in_kdtrace.h> 75 76 VNET_DECLARE(int, ah_enable); 77 VNET_DECLARE(int, ah_cleartos); 78 VNET_PCPUSTAT_DECLARE(struct ahstat, ahstat); 79 80 #define AHSTAT_ADD(name, val) \ 81 do { \ 82 MIB_SDT_PROBE1(ah, count, name, (val)); \ 83 VNET_PCPUSTAT_ADD(struct ahstat, ahstat, name, (val)); \ 84 } while (0) 85 #define AHSTAT_INC2(name, type) \ 86 do { \ 87 MIB_SDT_PROBE2(ah, count, name, 1, (type)); \ 88 VNET_PCPUSTAT_ADD(struct ahstat, ahstat, name[type], 1); \ 89 } while (0) 90 #define AHSTAT_INC(name) AHSTAT_ADD(name, 1) 91 #define V_ah_enable VNET(ah_enable) 92 #define V_ah_cleartos VNET(ah_cleartos) 93 #endif /* _KERNEL */ 94 #endif /*_NETIPSEC_AH_VAR_H_*/ 95