Date: Fri, 28 Nov 2008 23:39:25 +0000 (UTC) From: Marko Zec <zec@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r185420 - head/sys/netinet Message-ID: <200811282339.mASNdPds033047@svn.freebsd.org>
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Author: zec Date: Fri Nov 28 23:39:25 2008 New Revision: 185420 URL: http://svn.freebsd.org/changeset/base/185420 Log: Add an essential .h file that skipped from the last commit (r185419). Pointy hat #1 on... Pointed out by: bz Added: head/sys/netinet/tcp_hostcache.h (contents, props changed) Added: head/sys/netinet/tcp_hostcache.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/netinet/tcp_hostcache.h Fri Nov 28 23:39:25 2008 (r185420) @@ -0,0 +1,82 @@ +/*- + * Copyright (c) 2002 Andre Oppermann, Internet Business Solutions AG + * 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. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +/* + * Many thanks to jlemon for basic structure of tcp_syncache which is being + * followed here. + */ + +#ifndef _NETINET_TCP_HOSTCACHE_H_ +#define _NETINET_TCP_HOSTCACHE_H_ + +TAILQ_HEAD(hc_qhead, hc_metrics); + +struct hc_head { + struct hc_qhead hch_bucket; + u_int hch_length; + struct mtx hch_mtx; +}; + +struct hc_metrics { + /* housekeeping */ + TAILQ_ENTRY(hc_metrics) rmx_q; + struct hc_head *rmx_head; /* head of bucket tail queue */ + struct in_addr ip4; /* IP address */ + struct in6_addr ip6; /* IP6 address */ + /* endpoint specific values for tcp */ + u_long rmx_mtu; /* MTU for this path */ + u_long rmx_ssthresh; /* outbound gateway buffer limit */ + u_long rmx_rtt; /* estimated round trip time */ + u_long rmx_rttvar; /* estimated rtt variance */ + u_long rmx_bandwidth; /* estimated bandwidth */ + u_long rmx_cwnd; /* congestion window */ + u_long rmx_sendpipe; /* outbound delay-bandwidth product */ + u_long rmx_recvpipe; /* inbound delay-bandwidth product */ + /* TCP hostcache internal data */ + int rmx_expire; /* lifetime for object */ + u_long rmx_hits; /* number of hits */ + u_long rmx_updates; /* number of updates */ +}; + +struct tcp_hostcache { + struct hc_head *hashbase; + uma_zone_t zone; + u_int hashsize; + u_int hashmask; + u_int bucket_limit; + u_int cache_count; + u_int cache_limit; + int expire; + int prune; + int purgeall; +}; + +#endif /* !_NETINET_TCP_HOSTCACHE_H_*/
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