freebsd-nq/sys/netipsec/ipsec6.h

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/* $FreeBSD$ */
/* $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 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.
*/
/*
* IPsec controller part.
*/
#ifndef _NETIPSEC_IPSEC6_H_
#define _NETIPSEC_IPSEC6_H_
#include <net/pfkeyv2.h>
#include <netipsec/keydb.h>
#ifdef _KERNEL
Build on Jeff Roberson's linker-set based dynamic per-CPU allocator (DPCPU), as suggested by Peter Wemm, and implement a new per-virtual network stack memory allocator. Modify vnet to use the allocator instead of monolithic global container structures (vinet, ...). This change solves many binary compatibility problems associated with VIMAGE, and restores ELF symbols for virtualized global variables. Each virtualized global variable exists as a "reference copy", and also once per virtual network stack. Virtualized global variables are tagged at compile-time, placing the in a special linker set, which is loaded into a contiguous region of kernel memory. Virtualized global variables in the base kernel are linked as normal, but those in modules are copied and relocated to a reserved portion of the kernel's vnet region with the help of a the kernel linker. Virtualized global variables exist in per-vnet memory set up when the network stack instance is created, and are initialized statically from the reference copy. Run-time access occurs via an accessor macro, which converts from the current vnet and requested symbol to a per-vnet address. When "options VIMAGE" is not compiled into the kernel, normal global ELF symbols will be used instead and indirection is avoided. This change restores static initialization for network stack global variables, restores support for non-global symbols and types, eliminates the need for many subsystem constructors, eliminates large per-subsystem structures that caused many binary compatibility issues both for monitoring applications (netstat) and kernel modules, removes the per-function INIT_VNET_*() macros throughout the stack, eliminates the need for vnet_symmap ksym(2) munging, and eliminates duplicate definitions of virtualized globals under VIMAGE_GLOBALS. Bump __FreeBSD_version and update UPDATING. Portions submitted by: bz Reviewed by: bz, zec Discussed with: gnn, jamie, jeff, jhb, julian, sam Suggested by: peter Approved by: re (kensmith)
2009-07-14 22:48:30 +00:00
VNET_DECLARE(struct ipsecstat, ipsec6stat);
VNET_DECLARE(int, ip6_esp_trans_deflev);
VNET_DECLARE(int, ip6_esp_net_deflev);
VNET_DECLARE(int, ip6_ah_trans_deflev);
VNET_DECLARE(int, ip6_ah_net_deflev);
VNET_DECLARE(int, ip6_ipsec_ecn);
#define V_ipsec6stat VNET(ipsec6stat)
#define V_ip6_esp_trans_deflev VNET(ip6_esp_trans_deflev)
#define V_ip6_esp_net_deflev VNET(ip6_esp_net_deflev)
#define V_ip6_ah_trans_deflev VNET(ip6_ah_trans_deflev)
#define V_ip6_ah_net_deflev VNET(ip6_ah_net_deflev)
#define V_ip6_ipsec_ecn VNET(ip6_ipsec_ecn)
struct inpcb;
extern int ipsec6_in_reject __P((struct mbuf *, struct inpcb *));
struct ip6_hdr;
extern const char *ipsec6_logpacketstr __P((struct ip6_hdr *, u_int32_t));
struct m_tag;
extern int ipsec6_common_input(struct mbuf **mp, int *offp, int proto);
extern int ipsec6_common_input_cb(struct mbuf *m, struct secasvar *sav,
int skip, int protoff, struct m_tag *mt);
extern void esp6_ctlinput(int, struct sockaddr *, void *);
struct ipsec_output_state;
extern int ipsec6_output_trans __P((struct ipsec_output_state *, u_char *,
struct mbuf *, struct secpolicy *, int, int *));
extern int ipsec6_output_tunnel __P((struct ipsec_output_state *,
struct secpolicy *, int));
#endif /*_KERNEL*/
#endif /*_NETIPSEC_IPSEC6_H_*/