1 /* $OpenBSD: ip_esp.h,v 1.43 2016/09/02 09:39:32 vgross 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 _NETINET_IP_ESP_H_ 39 #define _NETINET_IP_ESP_H_ 40 41 struct espstat 42 { 43 u_int32_t esps_hdrops; /* Packet shorter than header shows */ 44 u_int32_t esps_nopf; /* Protocol family not supported */ 45 u_int32_t esps_notdb; 46 u_int32_t esps_badkcr; 47 u_int32_t esps_qfull; 48 u_int32_t esps_noxform; 49 u_int32_t esps_badilen; 50 u_int32_t esps_wrap; /* Replay counter wrapped around */ 51 u_int32_t esps_badenc; /* Bad encryption detected */ 52 u_int32_t esps_badauth; /* Only valid for transforms with auth */ 53 u_int32_t esps_replay; /* Possible packet replay detected */ 54 u_int32_t esps_input; /* Input ESP packets */ 55 u_int32_t esps_output; /* Output ESP packets */ 56 u_int32_t esps_invalid; /* Trying to use an invalid TDB */ 57 u_int64_t esps_ibytes; /* Input bytes */ 58 u_int64_t esps_obytes; /* Output bytes */ 59 u_int32_t esps_toobig; /* Packet got larger than IP_MAXPACKET */ 60 u_int32_t esps_pdrops; /* Packet blocked due to policy */ 61 u_int32_t esps_crypto; /* Crypto processing failure */ 62 u_int32_t esps_udpencin; /* Input ESP-in-UDP packets */ 63 u_int32_t esps_udpencout; /* Output ESP-in-UDP packets */ 64 u_int32_t esps_udpinval; /* Invalid input ESP-in-UDP packets */ 65 u_int32_t esps_udpneeded; /* Trying to use a ESP-in-UDP TDB */ 66 }; 67 68 /* 69 * Names for ESP sysctl objects 70 */ 71 #define ESPCTL_ENABLE 1 /* Enable ESP processing */ 72 #define ESPCTL_UDPENCAP_ENABLE 2 /* Enable ESP over UDP */ 73 #define ESPCTL_UDPENCAP_PORT 3 /* UDP port for encapsulation */ 74 #define ESPCTL_STATS 4 /* ESP Stats */ 75 #define ESPCTL_MAXID 5 76 77 #define ESPCTL_NAMES { \ 78 { 0, 0 }, \ 79 { "enable", CTLTYPE_INT }, \ 80 { "udpencap", CTLTYPE_INT }, \ 81 { "udpencap_port", CTLTYPE_INT }, \ 82 { "stats", CTLTYPE_STRUCT }, \ 83 } 84 85 #define ESPCTL_VARS { \ 86 NULL, \ 87 &esp_enable, \ 88 &udpencap_enable, \ 89 &udpencap_port, \ 90 NULL \ 91 } 92 93 #ifdef _KERNEL 94 extern int esp_enable; 95 extern int udpencap_enable; 96 extern int udpencap_port; 97 extern struct espstat espstat; 98 #endif /* _KERNEL */ 99 #endif /* _NETINET_IP_ESP_H_ */ 100