/* $NetBSD: keydb.h,v 1.24 2021/11/10 16:55:20 msaitoh Exp $ */ /* $FreeBSD: keydb.h,v 1.1.4.1 2003/01/24 05:11:36 sam Exp $ */ /* $KAME: keydb.h,v 1.14 2000/08/02 17:58:26 sakane Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * All rights reserved. * * 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. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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. */ #ifndef _NETIPSEC_KEYDB_H_ #define _NETIPSEC_KEYDB_H_ #ifdef _KERNEL #include <sys/localcount.h> #include <sys/percpu.h> #include <netipsec/key_var.h> #include <net/route.h> #include <netinet/in.h> #ifndef _SOCKADDR_UNION_DEFINED #define _SOCKADDR_UNION_DEFINED /* * The union of all possible address formats we handle. */ union sockaddr_union { struct sockaddr sa; struct sockaddr_in sin; struct sockaddr_in6 sin6; }; #endif /* _SOCKADDR_UNION_DEFINED */ /* Security Association Index */ /* NOTE: Ensure to be same address family */ struct secasindex { union sockaddr_union src; /* source address for SA */ union sockaddr_union dst; /* destination address for SA */ u_int16_t proto; /* IPPROTO_ESP or IPPROTO_AH */ u_int8_t mode; /* mode of protocol, see ipsec.h */ u_int32_t reqid; /* reqid id who owned this SA */ /* see IPSEC_MANUAL_REQID_MAX. */ }; /* Security Association Data Base */ struct secashead { struct pslist_entry pslist_entry; struct localcount localcount; /* reference count */ struct secasindex saidx; struct sadb_ident *idents; /* source identity */ struct sadb_ident *identd; /* destination identity */ /* XXX I don't know how to use them. */ size_t idents_len; /* length of idents */ size_t identd_len; /* length of identd */ u_int8_t state; /* MATURE or DEAD. */ struct pslist_head savlist[SADB_SASTATE_MAX+1]; /* SA chain */ /* The first of this list is newer SA */ struct route sa_route; /* route cache */ }; struct xformsw; struct enc_xform; struct auth_hash; struct comp_algo; /* Security Association */ struct secasvar { struct pslist_entry pslist_entry; struct pslist_entry pslist_entry_savlut; struct localcount localcount; /* reference count */ bool savlut_added; /* Status of registration of the LUT */ u_int8_t state; /* Status of this Association */ u_int8_t alg_auth; /* Authentication Algorithm Identifier*/ u_int8_t alg_enc; /* Cipher Algorithm Identifier */ u_int8_t alg_comp; /* Compression Algorithm Identifier */ u_int32_t spi; /* SPI Value, network byte order */ u_int32_t flags; /* holder for SADB_KEY_FLAGS */ struct sadb_key *key_auth; /* Key for Authentication */ size_t key_auth_len; /* length of key_auth */ struct sadb_key *key_enc; /* Key for Encryption */ size_t key_enc_len; /* length of key_enc */ u_int ivlen; /* length of IV */ struct secreplay *replay; /* replay prevention */ size_t replay_len; /* length of replay */ time_t created; /* for lifetime */ struct sadb_lifetime *lft_c; /* CURRENT lifetime, it's constant. */ struct sadb_lifetime *lft_h; /* HARD lifetime */ struct sadb_lifetime *lft_s; /* SOFT lifetime */ /* percpu counters for lft_c->sadb_lifetime_{allocations,bytes} */ percpu_t *lft_c_counters_percpu; u_int32_t seq; /* sequence number */ pid_t pid; /* message's pid */ struct secashead *sah; /* back pointer to the secashead */ /* * NB: Fields with a tdb_ prefix are part of the "glue" used * to interface to the OpenBSD crypto support. This was done * to distinguish this code from the mainline KAME code. */ const struct xformsw *tdb_xform; /* transform */ const struct enc_xform *tdb_encalgxform; /* encoding algorithm */ const struct auth_hash *tdb_authalgxform; /* authentication algorithm */ const struct comp_algo *tdb_compalgxform; /* compression algorithm */ u_int64_t tdb_cryptoid; /* crypto session id */ u_int16_t natt_type; u_int16_t esp_frag; }; /* replay prevention */ struct secreplay { u_int32_t count; u_int wsize; /* window size, i.g. 4 bytes */ u_int32_t seq; /* used by sender */ u_int32_t lastseq; /* used by receiver */ char *bitmap; /* used by receiver */ int overflow; /* overflow flag */ }; /* socket table due to send PF_KEY messages. */ struct secreg { LIST_ENTRY(secreg) chain; struct socket *so; }; #ifndef IPSEC_NONBLOCK_ACQUIRE /* acquiring list table. */ struct secacq { LIST_ENTRY(secacq) chain; struct secasindex saidx; u_int32_t seq; /* sequence number */ time_t created; /* for lifetime */ int count; /* for lifetime */ }; #endif /* Sensitivity Level Specification */ /* nothing */ #define SADB_KILL_INTERVAL 600 /* six seconds */ /* secpolicy */ struct secpolicy *keydb_newsecpolicy (void); void keydb_delsecpolicy (struct secpolicy *); /* secashead */ struct secashead *keydb_newsecashead (void); void keydb_delsecashead (struct secashead *); /* secasvar */ struct secasvar *keydb_newsecasvar (void); void keydb_refsecasvar (struct secasvar *); void keydb_freesecasvar (struct secasvar *); /* secreplay */ struct secreplay *keydb_newsecreplay (size_t); void keydb_delsecreplay (struct secreplay *); /* secreg */ struct secreg *keydb_newsecreg (void); void keydb_delsecreg (struct secreg *); #endif /* _KERNEL */ #endif /* !_NETIPSEC_KEYDB_H_ */
