[317] | 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2017 by Dep. of Computer Science and Engineering
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| 5 | * Tomakomai National College of Technology, JAPAN
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| 6 | * Copyright (C) 2008-2009 by Hokkaido Industrial Research Institute, JAPAN
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| 7 | *
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| 8 | * ä¸è¨èä½æ¨©è
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| 9 | ã¯ï¼ä»¥ä¸ã® (1)ï½(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 10 | * ã«ãã£ã¦å
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| 11 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 12 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 13 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 14 | å¸ï¼ä»¥ä¸ï¼
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| 15 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 16 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 17 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 18 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 19 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 20 | * ç¨ã§ããå½¢ã§åé
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| 21 | å¸ããå ´åã«ã¯ï¼åé
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| 22 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 23 | * è
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| 24 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 25 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 26 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 27 | * ç¨ã§ããªãå½¢ã§åé
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| 28 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®æ¡ä»¶ãæºãããã¨ï¼
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| 29 | * (a) åé
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| 30 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 31 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 32 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 33 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 34 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 35 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 36 | 責ãããã¨ï¼
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| 37 | *
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| 38 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 39 | ã
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| 40 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 41 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 42 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 43 | *
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| 44 | * @(#) $Id: esp.h 317 2017-08-03 13:14:26Z coas-nagasima $
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| 45 | */
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| 46 |
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| 47 | /* $FreeBSD: src/sys/netinet6/esp.h,v 1.6 2002/04/19 04:46:22 suz Exp $ */
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| 48 | /* $KAME: esp.h,v 1.19 2001/09/04 08:43:19 itojun Exp $ */
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| 49 |
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| 50 | /*
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| 51 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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| 52 | * All rights reserved.
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| 53 | *
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| 54 | * Redistribution and use in source and binary forms, with or without
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| 55 | * modification, are permitted provided that the following conditions
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| 56 | * are met:
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| 57 | * 1. Redistributions of source code must retain the above copyright
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| 58 | * notice, this list of conditions and the following disclaimer.
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| 59 | * 2. Redistributions in binary form must reproduce the above copyright
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| 60 | * notice, this list of conditions and the following disclaimer in the
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| 61 | * documentation and/or other materials provided with the distribution.
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| 62 | * 3. Neither the name of the project nor the names of its contributors
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| 63 | * may be used to endorse or promote products derived from this software
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| 64 | * without specific prior written permission.
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| 65 | *
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| 66 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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| 67 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 68 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 69 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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| 70 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 71 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 72 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 73 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 74 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 75 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 76 | * SUCH DAMAGE.
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| 77 | */
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| 78 |
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| 79 | #ifndef _ESP_H_
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| 80 | #define _ESP_H_
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| 81 |
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| 82 | /*
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| 83 | * RFC2406 æå·åããã
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| 84 | */
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| 85 |
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| 86 | typedef struct t_esp_hdr {
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| 87 | int32_t spi; /* Security Parameter Index (SPI) */
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| 88 | int32_t seq; /* ã·ã¼ã±ã³ã¹çªå· */
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| 89 | } T_ESP_HDR;
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| 90 |
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| 91 | typedef struct t_esp_tail {
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| 92 | int8_t padlen; /* ããã£ã³ã°é· */
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| 93 | int8_t next; /* Next Header */
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| 94 | } T_ESP_TAIL;
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| 95 |
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| 96 | struct t_secas_var;
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| 97 |
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| 98 | struct t_esp_algorithm {
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| 99 | size_t padbound; /* pad boundary, in byte */
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| 100 | int_t ivlenval; /* iv length, in byte */
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| 101 | int_t (*mature) (struct t_secas_var *);
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| 102 | int_t keymin; /* in bits */
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| 103 | int_t keymax; /* in bits */
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| 104 | //int_t (*schedlen) (const struct t_esp_algorithm *);
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| 105 | int32_t (*schedlen) (const struct t_esp_algorithm *);
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| 106 | const char *name;
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| 107 | int_t (*ivlen) (const struct t_esp_algorithm *, struct t_secas_var *);
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| 108 | int_t (*decrypt) (T_NET_BUF *, size_t,
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| 109 | struct t_secas_var *, const struct t_esp_algorithm *, int_t,
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| 110 | T_NET_BUF *, size_t);
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| 111 | int_t (*encrypt) (T_NET_BUF *, size_t, size_t, int8_t*,
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| 112 | struct t_secas_var *, const struct t_esp_algorithm *, int_t,
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| 113 | T_NET_BUF *, size_t);
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| 114 | /* not supposed to be called directly */
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| 115 | int_t (*schedule) (const struct t_esp_algorithm *, struct t_secas_var *);
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| 116 | int_t (*blockdecrypt) (const struct t_esp_algorithm *,
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| 117 | struct t_secas_var *, int8_t *, int8_t *);
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| 118 | int_t (*blockencrypt) (const struct t_esp_algorithm *,
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| 119 | struct t_secas_var *, int8_t *, int8_t *);
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| 120 | };
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| 121 |
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| 122 | typedef struct t_esp_algorithm T_ESP_ALGORITHM;
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| 123 |
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| 124 | #define MAXIVLEN 16
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| 125 |
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| 126 | /*
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| 127 | * é¢æ°
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| 128 | */
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| 129 |
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| 130 | extern const struct t_esp_algorithm *esp_algorithm_lookup (int_t);
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| 131 | extern int_t esp_max_ivlen (void);
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| 132 | extern int_t esp_schedule (const struct t_esp_algorithm *, struct t_secas_var *);
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| 133 | extern int_t esp4_input(T_NET_BUF **inputp, uint_t *offp, uint_t *nextp);
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| 134 |
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| 135 | #ifdef T_IPSEC_REQUEST_DEFINED
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| 136 |
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| 137 | extern int_t esp4_output(T_NET_BUF *m, T_IPSEC_REQUEST *isr, T_NET_BUF** result);
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| 138 |
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| 139 | #endif /* of #ifdef T_IPSEC_REQUEST_DEFINED */
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| 140 |
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| 141 | #endif /* of #ifndef _ESP_H_ */
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