projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* $KAME: esp.h,v 1.5 2000/02/22 14:04:15 itojun Exp $ */ |
| 2 | ||
| 3 | /* | |
| 4 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. | |
| 5 | * All rights reserved. | |
| 6 | * | |
| 7 | * Redistribution and use in source and binary forms, with or without | |
| 8 | * modification, are permitted provided that the following conditions | |
| 9 | * are met: | |
| 10 | * 1. Redistributions of source code must retain the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer. | |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 | * notice, this list of conditions and the following disclaimer in the | |
| 14 | * documentation and/or other materials provided with the distribution. | |
| 15 | * 3. Neither the name of the project nor the names of its contributors | |
| 16 | * may be used to endorse or promote products derived from this software | |
| 17 | * without specific prior written permission. | |
| 18 | * | |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND | |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE | |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 29 | * SUCH DAMAGE. | |
| 30 | */ | |
| 31 | ||
| 32 | /* | |
| 33 | * RFC1827/2406 Encapsulated Security Payload. | |
| 34 | */ | |
| 35 | ||
| 36 | #ifndef _NETINET6_ESP_H_ | |
| 37 | #define _NETINET6_ESP_H_ | |
| 38 | ||
| 39 | #include <netkey/keydb.h> /* for struct secas */ | |
| 40 | ||
| 41 | struct esp { | |
| 42 | u_int32_t esp_spi; /* ESP */ | |
| 43 | /*variable size, 32bit bound*/ /* Initialization Vector */ | |
| 44 | /*variable size*/ /* Payload data */ | |
| 45 | /*variable size*/ /* padding */ | |
| 46 | /*8bit*/ /* pad size */ | |
| 47 | /*8bit*/ /* next header */ | |
| 48 | /*8bit*/ /* next header */ | |
| 49 | /*variable size, 32bit bound*/ /* Authentication data (new IPsec) */ | |
| 50 | }; | |
| 51 | ||
| 52 | struct newesp { | |
| 53 | u_int32_t esp_spi; /* ESP */ | |
| 54 | u_int32_t esp_seq; /* Sequence number */ | |
| 55 | /*variable size*/ /* (IV and) Payload data */ | |
| 56 | /*variable size*/ /* padding */ | |
| 57 | /*8bit*/ /* pad size */ | |
| 58 | /*8bit*/ /* next header */ | |
| 59 | /*8bit*/ /* next header */ | |
| 60 | /*variable size, 32bit bound*/ /* Authentication data */ | |
| 61 | }; | |
| 62 | ||
| 63 | struct esptail { | |
| 64 | u_int8_t esp_padlen; /* pad length */ | |
| 65 | u_int8_t esp_nxt; /* Next header */ | |
| 66 | /*variable size, 32bit bound*/ /* Authentication data (new IPsec)*/ | |
| 67 | }; | |
| 68 | ||
| 69 | struct esp_algorithm_state { | |
| 70 | struct secasvar *sav; | |
| 71 | void* foo; /*per algorithm data - maybe*/ | |
| 72 | }; | |
| 73 | ||
| 74 | /* XXX yet to be defined */ | |
| 75 | struct esp_algorithm { | |
| 76 | size_t padbound; /* pad boundary, in byte */ | |
| 77 | int (*mature) __P((struct secasvar *)); | |
| 78 | int keymin; /* in bits */ | |
| 79 | int keymax; /* in bits */ | |
| 80 | int (*ivlen) __P((struct secasvar *)); | |
| 81 | int (*decrypt) __P((struct mbuf *, size_t, | |
| 82 | struct secasvar *, struct esp_algorithm *, int)); | |
| 83 | int (*encrypt) __P((struct mbuf *, size_t, size_t, | |
| 84 | struct secasvar *, struct esp_algorithm *, int)); | |
| 85 | }; | |
| 86 | ||
| 87 | #if KERNEL | |
| 88 | extern struct esp_algorithm esp_algorithms[]; | |
| 89 | ||
| 90 | /* crypt routines */ | |
| 91 | extern int esp4_output __P((struct mbuf *, struct ipsecrequest *)); | |
| 92 | extern void esp4_input __P((struct mbuf *, int off)); | |
| 93 | extern size_t esp_hdrsiz __P((struct ipsecrequest *)); | |
| 94 | ||
| 95 | #if INET6 | |
| 96 | extern int esp6_output __P((struct mbuf *, u_char *, struct mbuf *, | |
| 97 | struct ipsecrequest *)); | |
| 98 | extern int esp6_input __P((struct mbuf **, int *, int)); | |
| 99 | #endif /* INET6 */ | |
| 100 | #endif /*KERNEL*/ | |
| 101 | ||
| 102 | struct secasvar; | |
| 103 | extern int esp_auth __P((struct mbuf *, size_t, size_t, | |
| 104 | struct secasvar *, u_char *)); | |
| 105 | ||
| 106 | #endif /*_NETINET6_ESP_H_*/ |