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freebsd/sys/netkey/key.h
Hajimu UMEMOTO 0f9ade718d - cleanup SP refcnt issue.
- share policy-on-socket for listening socket.
- don't copy policy-on-socket at all.  secpolicy no longer contain
  spidx, which saves a lot of memory.
- deep-copy pcb policy if it is an ipsec policy.  assign ID field to
  all SPD entries.  make it possible for racoon to grab SPD entry on
  pcb.
- fixed the order of searching SA table for packets.
- fixed to get a security association header.  a mode is always needed
  to compare them.
- fixed that the incorrect time was set to
  sadb_comb_{hard|soft}_usetime.
- disallow port spec for tunnel mode policy (as we don't reassemble).
- an user can define a policy-id.
- clear enc/auth key before freeing.
- fixed that the kernel crashed when key_spdacquire() was called
  because key_spdacquire() had been implemented imcopletely.
- preparation for 64bit sequence number.
- maintain ordered list of SA, based on SA id.
- cleanup secasvar management; refcnt is key.c responsibility;
  alloc/free is keydb.c responsibility.
- cleanup, avoid double-loop.
- use hash for spi-based lookup.
- mark persistent SP "persistent".
  XXX in theory refcnt should do the right thing, however, we have
  "spdflush" which would touch all SPs.  another solution would be to
  de-register persistent SPs from sptree.
- u_short -> u_int16_t
- reduce kernel stack usage by auto variable secasindex.
- clarify function name confusion.  ipsec_*_policy ->
  ipsec_*_pcbpolicy.
- avoid variable name confusion.
  (struct inpcbpolicy *)pcb_sp, spp (struct secpolicy **), sp (struct
  secpolicy *)
- count number of ipsec encapsulations on ipsec4_output, so that we
  can tell ip_output() how to handle the packet further.
- When the value of the ul_proto is ICMP or ICMPV6, the port field in
  "src" of the spidx specifies ICMP type, and the port field in "dst"
  of the spidx specifies ICMP code.
- avoid from applying IPsec transport mode to the packets when the
  kernel forwards the packets.

Tested by:	nork
Obtained from:	KAME
2003-11-04 16:02:05 +00:00

87 lines
3.4 KiB
C

/* $FreeBSD$ */
/* $KAME: key.h,v 1.32 2003/09/07 05:25:20 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _NETKEY_KEY_H_
#define _NETKEY_KEY_H_
#ifdef _KERNEL
#include <sys/queue.h>
extern struct key_cb key_cb;
extern TAILQ_HEAD(_satailq, secasvar) satailq;
extern TAILQ_HEAD(_sptailq, secpolicy) sptailq;
struct secpolicy;
struct secpolicyindex;
struct ipsecrequest;
struct secasvar;
struct sockaddr;
struct socket;
struct sadb_msg;
struct sadb_x_policy;
extern struct secpolicy *key_allocsp(u_int16_t, struct secpolicyindex *,
u_int);
extern struct secpolicy *key_gettunnel(struct sockaddr *,
struct sockaddr *, struct sockaddr *, struct sockaddr *);
extern int key_checkrequest
(struct ipsecrequest *isr, struct secasindex *);
extern struct secasvar *key_allocsa(u_int, caddr_t, caddr_t, u_int, u_int32_t);
extern void key_freesp(struct secpolicy *);
extern void key_freesav(struct secasvar *);
extern struct secpolicy *key_newsp(u_int32_t);
extern struct secpolicy *key_msg2sp(struct sadb_x_policy *, size_t, int *);
extern struct mbuf *key_sp2msg(struct secpolicy *);
extern int key_cmpspidx_exactly
(struct secpolicyindex *, struct secpolicyindex *);
extern int key_cmpspidx_withmask
(struct secpolicyindex *, struct secpolicyindex *);
extern int key_spdacquire(struct secpolicy *);
extern void key_timehandler(void *);
extern void key_randomfill(void *, size_t);
extern void key_freereg(struct socket *);
extern int key_parse(struct mbuf *, struct socket *);
extern void key_init(void);
extern int key_checktunnelsanity(struct secasvar *, u_int, caddr_t, caddr_t);
extern void key_sa_recordxfer(struct secasvar *, struct mbuf *);
extern void key_sa_routechange(struct sockaddr *);
extern void key_sa_stir_iv(struct secasvar *);
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_SECA);
#endif /* MALLOC_DECLARE */
#endif /* defined(_KERNEL) */
#endif /* _NETKEY_KEY_H_ */