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ah.h
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ah_var.h
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esp.h
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esp_var.h
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ipcomp.h
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ipcomp_var.h
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ipsec.h
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ipsec6.h
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ipsec_support.h
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key.h
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key_debug.h
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key_var.h
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keydb.h
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keysock.h
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xform.h
(3.99 KB)
Editing: xform.h
/* $FreeBSD$ */ /* $OpenBSD: ip_ipsp.h,v 1.119 2002/03/14 01:27:11 millert Exp $ */ /*- * The authors of this code are John Ioannidis (ji@tla.org), * Angelos D. Keromytis (kermit@csd.uch.gr), * Niels Provos (provos@physnet.uni-hamburg.de) and * Niklas Hallqvist (niklas@appli.se). * * The original version of this code was written by John Ioannidis * for BSD/OS in Athens, Greece, in November 1995. * * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, * by Angelos D. Keromytis. * * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis * and Niels Provos. * * Additional features in 1999 by Angelos D. Keromytis and Niklas Hallqvist. * * Copyright (c) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, * Angelos D. Keromytis and Niels Provos. * Copyright (c) 1999 Niklas Hallqvist. * Copyright (c) 2001, Angelos D. Keromytis. * * Permission to use, copy, and modify this software with or without fee * is hereby granted, provided that this entire notice is included in * all copies of any software which is or includes a copy or * modification of this software. * You may use this code under the GNU public license if you so wish. Please * contribute changes back to the authors under this freer than GPL license * so that we may further the use of strong encryption without limitations to * all. * * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR * PURPOSE. */ #ifndef _NETIPSEC_XFORM_H_ #define _NETIPSEC_XFORM_H_ #include <sys/types.h> #include <sys/queue.h> #include <netinet/in.h> #include <opencrypto/xform.h> #define AH_HMAC_HASHLEN 12 /* 96 bits of authenticator */ #define AH_HMAC_MAXHASHLEN (SHA2_512_HASH_LEN/2) /* Keep this updated */ #define AH_HMAC_INITIAL_RPL 1 /* replay counter initial value */ #ifdef _KERNEL struct secpolicy; struct secasvar; /* * Packet tag assigned on completion of IPsec processing; used * to speedup security policy checking for INBOUND packets. */ struct xform_history { union sockaddr_union dst; /* destination address */ uint32_t spi; /* Security Parameters Index */ uint8_t proto; /* IPPROTO_ESP or IPPROTO_AH */ uint8_t mode; /* transport or tunnel */ }; /* * Opaque data structure hung off a crypto operation descriptor. */ struct xform_data { struct secpolicy *sp; /* security policy */ struct secasvar *sav; /* related SA */ crypto_session_t cryptoid; /* used crypto session */ u_int idx; /* IPsec request index */ int protoff; /* current protocol offset */ int skip; /* data offset */ uint8_t nxt; /* next protocol, e.g. IPV4 */ struct vnet *vnet; }; #define XF_IP4 1 /* unused */ #define XF_AH 2 /* AH */ #define XF_ESP 3 /* ESP */ #define XF_TCPSIGNATURE 5 /* TCP MD5 Signature option, RFC 2358 */ #define XF_IPCOMP 6 /* IPCOMP */ struct xformsw { u_short xf_type; /* xform ID */ const char *xf_name; /* human-readable name */ int (*xf_init)(struct secasvar*, struct xformsw*); /* setup */ void (*xf_cleanup)(struct secasvar*); /* cleanup */ int (*xf_input)(struct mbuf*, struct secasvar*, /* input */ int, int); int (*xf_output)(struct mbuf*, /* output */ struct secpolicy *, struct secasvar *, u_int, int, int); volatile u_int xf_cntr; LIST_ENTRY(xformsw) chain; }; const struct enc_xform * enc_algorithm_lookup(int); const struct auth_hash * auth_algorithm_lookup(int); const struct comp_algo * comp_algorithm_lookup(int); void xform_attach(void *); void xform_detach(void *); int xform_init(struct secasvar *, u_short); struct crypto_session_params; /* XF_AH */ int xform_ah_authsize(const struct auth_hash *); int ah_init0(struct secasvar *, struct xformsw *, struct crypto_session_params *); extern size_t ah_hdrsiz(struct secasvar *); /* XF_ESP */ extern size_t esp_hdrsiz(struct secasvar *sav); #endif /* _KERNEL */ #endif /* _NETIPSEC_XFORM_H_ */
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