1 /* $OpenBSD: ip_esp.h,v 1.37 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 by 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_ESP_VAR_H_ 39 #define _NETIPSEC_ESP_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 reasonable value. 46 */ 47 #define ESP_ALG_MAX 256 /* NB: could be < but skipjack is 249 */ 48 49 struct espstat { 50 uint64_t esps_hdrops; /* Packet shorter than header shows */ 51 uint64_t esps_nopf; /* Protocol family not supported */ 52 uint64_t esps_notdb; 53 uint64_t esps_badkcr; 54 uint64_t esps_qfull; 55 uint64_t esps_noxform; 56 uint64_t esps_badilen; 57 uint64_t esps_wrap; /* Replay counter wrapped around */ 58 uint64_t esps_badenc; /* Bad encryption detected */ 59 uint64_t esps_badauth; /* Only valid for transforms with auth */ 60 uint64_t esps_replay; /* Possible packet replay detected */ 61 uint64_t esps_input; /* Input ESP packets */ 62 uint64_t esps_output; /* Output ESP packets */ 63 uint64_t esps_invalid; /* Trying to use an invalid TDB */ 64 uint64_t esps_ibytes; /* Input bytes */ 65 uint64_t esps_obytes; /* Output bytes */ 66 uint64_t esps_toobig; /* Packet got larger than IP_MAXPACKET */ 67 uint64_t esps_pdrops; /* Packet blocked due to policy */ 68 uint64_t esps_crypto; /* Crypto processing failure */ 69 uint64_t esps_tunnel; /* Tunnel sanity check failure */ 70 uint64_t esps_hist[ESP_ALG_MAX]; /* Per-algorithm op count */ 71 }; 72 73 #ifdef _KERNEL 74 #include <sys/counter.h> 75 #include <netinet/in_kdtrace.h> 76 77 VNET_DECLARE(int, esp_enable); 78 VNET_DECLARE(int, esp_ctr_compatibility); 79 #define V_esp_ctr_compatibility VNET(esp_ctr_compatibility) 80 VNET_PCPUSTAT_DECLARE(struct espstat, espstat); 81 82 #define ESPSTAT_ADD(name, val) \ 83 do { \ 84 MIB_SDT_PROBE1(esp, count, name, (val)); \ 85 VNET_PCPUSTAT_ADD(struct espstat, espstat, name, (val)); \ 86 } while (0) 87 #define ESPSTAT_INC(name) ESPSTAT_ADD(name, 1) 88 #define ESPSTAT_INC2(name, type) \ 89 do { \ 90 MIB_SDT_PROBE2(esp, count, name, 1, (type)); \ 91 VNET_PCPUSTAT_ADD(struct espstat, espstat, name[type], 1); \ 92 } while (0) 93 94 #define V_esp_enable VNET(esp_enable) 95 #endif /* _KERNEL */ 96 #endif /*_NETIPSEC_ESP_VAR_H_*/ 97