keydb.h revision 1.13.10.2
1 /* $NetBSD: keydb.h,v 1.13.10.2 2017/08/28 17:53:13 skrll Exp $ */ 2 /* $FreeBSD: src/sys/netipsec/keydb.h,v 1.1.4.1 2003/01/24 05:11:36 sam Exp $ */ 3 /* $KAME: keydb.h,v 1.14 2000/08/02 17:58:26 sakane Exp $ */ 4 5 /* 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef _NETIPSEC_KEYDB_H_ 35 #define _NETIPSEC_KEYDB_H_ 36 37 #ifdef _KERNEL 38 39 #include <sys/localcount.h> 40 41 #include <netipsec/key_var.h> 42 #include <net/route.h> 43 #include <netinet/in.h> 44 45 #ifndef _SOCKADDR_UNION_DEFINED 46 #define _SOCKADDR_UNION_DEFINED 47 /* 48 * The union of all possible address formats we handle. 49 */ 50 union sockaddr_union { 51 struct sockaddr sa; 52 struct sockaddr_in sin; 53 struct sockaddr_in6 sin6; 54 }; 55 #endif /* _SOCKADDR_UNION_DEFINED */ 56 57 /* Security Assocciation Index */ 58 /* NOTE: Ensure to be same address family */ 59 struct secasindex { 60 union sockaddr_union src; /* source address for SA */ 61 union sockaddr_union dst; /* destination address for SA */ 62 u_int16_t proto; /* IPPROTO_ESP or IPPROTO_AH */ 63 u_int8_t mode; /* mode of protocol, see ipsec.h */ 64 u_int32_t reqid; /* reqid id who owned this SA */ 65 /* see IPSEC_MANUAL_REQID_MAX. */ 66 }; 67 68 /* Security Association Data Base */ 69 struct secashead { 70 struct pslist_entry pslist_entry; 71 struct localcount localcount; /* reference count */ 72 73 struct secasindex saidx; 74 75 struct sadb_ident *idents; /* source identity */ 76 struct sadb_ident *identd; /* destination identity */ 77 /* XXX I don't know how to use them. */ 78 size_t idents_len; /* length of idents */ 79 size_t identd_len; /* length of identd */ 80 81 u_int8_t state; /* MATURE or DEAD. */ 82 struct pslist_head savlist[SADB_SASTATE_MAX+1]; 83 /* SA chain */ 84 /* The first of this list is newer SA */ 85 86 struct route sa_route; /* route cache */ 87 }; 88 89 struct xformsw; 90 struct enc_xform; 91 struct auth_hash; 92 struct comp_algo; 93 94 /* Security Association */ 95 struct secasvar { 96 struct pslist_entry pslist_entry; 97 struct localcount localcount; /* reference count */ 98 99 u_int8_t state; /* Status of this Association */ 100 101 u_int8_t alg_auth; /* Authentication Algorithm Identifier*/ 102 u_int8_t alg_enc; /* Cipher Algorithm Identifier */ 103 u_int8_t alg_comp; /* Compression Algorithm Identifier */ 104 u_int32_t spi; /* SPI Value, network byte order */ 105 u_int32_t flags; /* holder for SADB_KEY_FLAGS */ 106 107 struct sadb_key *key_auth; /* Key for Authentication */ 108 size_t key_auth_len; /* length of key_auth */ 109 struct sadb_key *key_enc; /* Key for Encryption */ 110 size_t key_enc_len; /* length of key_enc */ 111 u_int ivlen; /* length of IV */ 112 113 struct secreplay *replay; /* replay prevention */ 114 size_t replay_len; /* length of replay */ 115 time_t created; /* for lifetime */ 116 117 struct sadb_lifetime *lft_c; /* CURRENT lifetime, it's constant. */ 118 struct sadb_lifetime *lft_h; /* HARD lifetime */ 119 struct sadb_lifetime *lft_s; /* SOFT lifetime */ 120 121 u_int32_t seq; /* sequence number */ 122 pid_t pid; /* message's pid */ 123 124 struct secashead *sah; /* back pointer to the secashead */ 125 126 /* 127 * NB: Fields with a tdb_ prefix are part of the "glue" used 128 * to interface to the OpenBSD crypto support. This was done 129 * to distinguish this code from the mainline KAME code. 130 */ 131 const struct xformsw *tdb_xform; /* transform */ 132 const struct enc_xform *tdb_encalgxform; /* encoding algorithm */ 133 const struct auth_hash *tdb_authalgxform; /* authentication algorithm */ 134 const struct comp_algo *tdb_compalgxform; /* compression algorithm */ 135 u_int64_t tdb_cryptoid; /* crypto session id */ 136 137 u_int16_t natt_type; 138 u_int16_t esp_frag; 139 }; 140 141 /* replay prevention */ 142 struct secreplay { 143 u_int32_t count; 144 u_int wsize; /* window size, i.g. 4 bytes */ 145 u_int32_t seq; /* used by sender */ 146 u_int32_t lastseq; /* used by receiver */ 147 char *bitmap; /* used by receiver */ 148 int overflow; /* overflow flag */ 149 }; 150 151 /* socket table due to send PF_KEY messages. */ 152 struct secreg { 153 LIST_ENTRY(secreg) chain; 154 155 struct socket *so; 156 }; 157 158 #ifndef IPSEC_NONBLOCK_ACQUIRE 159 /* acquiring list table. */ 160 struct secacq { 161 LIST_ENTRY(secacq) chain; 162 163 struct secasindex saidx; 164 165 u_int32_t seq; /* sequence number */ 166 time_t created; /* for lifetime */ 167 int count; /* for lifetime */ 168 }; 169 #endif 170 171 /* Sensitivity Level Specification */ 172 /* nothing */ 173 174 #define SADB_KILL_INTERVAL 600 /* six seconds */ 175 176 /* secpolicy */ 177 struct secpolicy *keydb_newsecpolicy (void); 178 void keydb_delsecpolicy (struct secpolicy *); 179 /* secashead */ 180 struct secashead *keydb_newsecashead (void); 181 void keydb_delsecashead (struct secashead *); 182 /* secasvar */ 183 struct secasvar *keydb_newsecasvar (void); 184 void keydb_refsecasvar (struct secasvar *); 185 void keydb_freesecasvar (struct secasvar *); 186 /* secreplay */ 187 struct secreplay *keydb_newsecreplay (size_t); 188 void keydb_delsecreplay (struct secreplay *); 189 /* secreg */ 190 struct secreg *keydb_newsecreg (void); 191 void keydb_delsecreg (struct secreg *); 192 193 #endif /* _KERNEL */ 194 195 #endif /* !_NETIPSEC_KEYDB_H_ */ 196
Indexes created Fri Oct 17 00:09:41 GMT 2025