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bd9a0a7781
By default, pipes are the default size for the system. But sometimes when using TCP splicing, it can improve performance to increase pipe sizes, especially if it is suspected that pipes are not filled and that many calls to splice() are performed. This has an impact on the kernel's memory footprint, so this must not be changed if impacts are not understood.
118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
/*
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* include/common/compat.h
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* Operating system compatibility interface.
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*
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* Copyright (C) 2000-2010 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _COMMON_COMPAT_H
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#define _COMMON_COMPAT_H
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/* This is needed on Linux for Netfilter includes */
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <common/config.h>
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#include <common/standard.h>
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#ifndef BITS_PER_INT
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#define BITS_PER_INT (8*sizeof(int))
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#endif
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/* this is for libc5 for example */
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#ifndef TCP_NODELAY
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#define TCP_NODELAY 1
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#endif
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#ifndef SHUT_RD
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#define SHUT_RD 0
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#endif
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#ifndef SHUT_WR
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#define SHUT_WR 1
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#endif
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/* only Linux defines it */
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#ifndef MSG_NOSIGNAL
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#define MSG_NOSIGNAL 0
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#endif
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/* AIX does not define MSG_DONTWAIT. We'll define it to zero, and test it
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* wherever appropriate.
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*/
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#ifndef MSG_DONTWAIT
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#define MSG_DONTWAIT 0
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#endif
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/* Only Linux defines MSG_MORE */
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#ifndef MSG_MORE
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#define MSG_MORE 0
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#endif
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/* Maximum path length, OS-dependant */
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#ifndef MAXPATHLEN
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#define MAXPATHLEN 128
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#endif
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/* On Linux, allows pipes to be resized */
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#ifndef F_SETPIPE_SZ
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#define F_SETPIPE_SZ (1024 + 7)
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#endif
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#if defined(TPROXY) && defined(NETFILTER)
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#include <linux/types.h>
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#include <linux/netfilter_ipv6.h>
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#include <linux/netfilter_ipv4.h>
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#endif
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/* On Linux, IP_TRANSPARENT and/or IP_FREEBIND generally require a kernel patch */
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#if defined(CONFIG_HAP_LINUX_TPROXY)
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#if !defined(IP_FREEBIND)
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#define IP_FREEBIND 15
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#endif /* !IP_FREEBIND */
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#if !defined(IP_TRANSPARENT)
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#define IP_TRANSPARENT 19
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#endif /* !IP_TRANSPARENT */
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#endif /* CONFIG_HAP_LINUX_TPROXY */
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/* We'll try to enable SO_REUSEPORT on Linux 2.4 and 2.6 if not defined.
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* There are two families of values depending on the architecture. Those
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* are at least valid on Linux 2.4 and 2.6, reason why we'll rely on the
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* NETFILTER define.
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*/
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#if !defined(SO_REUSEPORT) && defined(NETFILTER)
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#if (SO_REUSEADDR == 2)
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#define SO_REUSEPORT 15
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#elif (SO_REUSEADDR == 0x0004)
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#define SO_REUSEPORT 0x0200
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#endif /* SO_REUSEADDR */
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#endif /* SO_REUSEPORT */
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#if defined(__dietlibc__)
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#include <strings.h>
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#endif
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#endif /* _COMMON_COMPAT_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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