2002-10-16 02:10:08 +00:00
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/* $FreeBSD$ */
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/* $KAME: ipcomp.h,v 1.8 2000/09/26 07:55:14 itojun Exp $ */
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2005-01-07 01:45:51 +00:00
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/*-
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2002-10-16 02:10:08 +00:00
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* Copyright (C) 1999 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _NETIPSEC_IPCOMP_VAR_H_
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#define _NETIPSEC_IPCOMP_VAR_H_
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/*
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* These define the algorithm indices into the histogram. They're
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* presently based on the PF_KEY v2 protocol values which is bogus;
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* they should be decoupled from the protocol at which time we can
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* pack them and reduce the size of the array to a minimum.
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*/
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#define IPCOMP_ALG_MAX 8
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2009-11-29 20:37:30 +00:00
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#define IPCOMPSTAT_VERSION 1
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2002-10-16 02:10:08 +00:00
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struct ipcompstat {
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u_int32_t ipcomps_hdrops; /* Packet shorter than header shows */
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u_int32_t ipcomps_nopf; /* Protocol family not supported */
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u_int32_t ipcomps_notdb;
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u_int32_t ipcomps_badkcr;
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u_int32_t ipcomps_qfull;
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u_int32_t ipcomps_noxform;
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u_int32_t ipcomps_wrap;
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u_int32_t ipcomps_input; /* Input IPcomp packets */
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u_int32_t ipcomps_output; /* Output IPcomp packets */
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u_int32_t ipcomps_invalid;/* Trying to use an invalid TDB */
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u_int64_t ipcomps_ibytes; /* Input bytes */
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u_int64_t ipcomps_obytes; /* Output bytes */
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u_int32_t ipcomps_toobig; /* Packet got > IP_MAXPACKET */
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u_int32_t ipcomps_pdrops; /* Packet blocked due to policy */
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u_int32_t ipcomps_crypto; /* "Crypto" processing failure */
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u_int32_t ipcomps_hist[IPCOMP_ALG_MAX];/* Per-algorithm op count */
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2009-11-29 20:37:30 +00:00
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u_int32_t version; /* Version of this structure. */
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u_int32_t ipcomps_threshold; /* Packet < comp. algo. threshold. */
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u_int32_t ipcomps_uncompr; /* Compression was useles. */
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2002-10-16 02:10:08 +00:00
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};
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#ifdef _KERNEL
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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
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VNET_DECLARE(int, ipcomp_enable);
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VNET_DECLARE(struct ipcompstat, ipcompstat);
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2010-04-29 11:52:42 +00:00
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#define V_ipcomp_enable VNET(ipcomp_enable)
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2009-07-16 21:13:04 +00:00
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#define V_ipcompstat VNET(ipcompstat)
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2002-10-16 02:10:08 +00:00
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#endif /* _KERNEL */
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#endif /*_NETIPSEC_IPCOMP_VAR_H_*/
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