dae61c9d09
- Rename from the teardown callback from 'zeroize' to 'cleanup' since this no longer zeroes keys. - Change the callback return type to void. Nothing checked the return value and it was always zero. - Don't have esp call into ah since it no longer needs to depend on this to clear the auth key. Instead, both are now private and self-contained. Reviewed by: delphij Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25443
122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/* $FreeBSD$ */
|
|
/* $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_ */
|