snort-2.6.0.2.ebuild

snort-2.6.0.2.ebuild (text/plain), 7.32 KB, created by Jason Wallace on 2006-11-16 10:54:35 UTC

# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-analyzer/snort/snort-2.6.0.ebuild,v 1.4 2006/10/31 19:58:42 jokey Exp $

WANT_AUTOCONF="latest"
WANT_AUTOMAKE="latest"
inherit eutils flag-o-matic autotools

DESCRIPTION="Libpcap-based packet sniffer/logger/lightweight IDS"
HOMEPAGE="http://www.snort.org/"
SRC_URI="http://www.snort.org/dl/current/${P}.tar.gz
    mirror://gentoo/snort-2.6.0-genpatches.tar.bz2
	http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules.tar.gz
	http://www.snort.org/pub-bin/downloads.cgi/Download/vrt_pr/snortrules-pr-2.4.tar.gz
	snortsam? ( mirror://gentoo/snortsam-20050110.tar.gz )"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 -sparc ~x86"
IUSE="dynamicplugin flexresp flexresp2 inline linux-smp-stats mysql odbc perfprofiling 
postgres prelude react selinux sguil snortsam ssl timestats"

DEPEND="virtual/libc
	>=dev-libs/libpcre-4.2-r1
	virtual/libpcap
	flexresp? ( ~net-libs/libnet-1.0.2a )
	flexresp2? ( dev-libs/libdnet )
	react? ( ~net-libs/libnet-1.0.2a )
	postgres? ( || ( dev-db/postgresql dev-db/libpq ) )
	mysql? ( dev-db/mysql )
	ssl? ( dev-libs/openssl )
	prelude? ( >=dev-libs/libprelude-0.9.0 )
	odbc? ( dev-db/unixODBC )
	>=sys-devel/libtool-1.4
	inline? ( 
		~net-libs/libnet-1.0.2a
		net-firewall/iptables
		)"

RDEPEND="${DEPEND}
	dev-lang/perl
	selinux? ( sec-policy/selinux-snort )
	snortsam? ( net-analyzer/snortsam )"

pkg_setup() {
	enewgroup snort
	enewuser snort -1 -1 /dev/null snort
}

src_unpack() {
	unpack ${A}
	cd "${S}"

	if use flexresp || use inline || use react ; then
		epatch "${WORKDIR}/2.6.0-libnet-1.0.patch"
	fi

	sed -i "s:var RULE_PATH ../rules:var RULE_PATH /etc/snort/rules:" \
		etc/snort.conf

	if use prelude ; then
		sed -i -e "s:AC_PROG_RANLIB:AC_PROG_LIBTOOL:" configure.in
	fi

# Removed based on the following...
#
# "Both of those patches are optional. The stream4 one has been
# depreciated for sancp. You can use the sfportscan processor in snort
# 2.6 for now. I'll put a new spp_portscan patch out for the next Sguil
# release."
#
# Bammkkkk
#
# http://article.gmane.org/gmane.comp.security.sguil.general/942
#
# SGUIL needs to catch up with snort 2.6.x. People that want to use
# sguil and snort should use snort 2.4.5
#
#	if use sguil ; then
#		epatch "${WORKDIR}/spp_portscan_sguil.patch"
#		epatch "${WORKDIR}/spp_stream4_sguil.patch"
#	fi

	if use snortsam ; then
		cd ..
		einfo "Applying snortsam patch"
		./patchsnort.sh "${S}" || die "snortsam patch failed"
		cd "${S}"
	fi

	if use snortsam && !(grep -E 'PLUGIN_FWSAM,' \
	${WORKDIR}/snort-2.6.0.2/src/plugin_enum.h) ; then
		einfo "Applying snortsam snortpatch9 workaround"
		cd "${WORKDIR}/snort-2.6.0.2/src/"
		sed -i "s:PLUGIN_FWSAM:PLUGIN_FWSAM,:" plugin_enum.h \
		|| die "snortsam patch workaround failed"
		cd "${S}";
	else
		einfo "plugin_enum.h looks correct!"
		cd "${S}";
	fi
	
	einfo "Regenerating autoconf/automake files"
	AT_M4DIR=m4 eautoreconf
}

src_compile() {
	local myconf

	if use inline ; then
		myconf="${myconf} --enable-inline --with-libipq-includes=/usr/include/libipq" ;
	else 
		myconf="${myconf} --disable-inline"
	fi

	if use flexresp && use flexresp2 ; then
		ewarn 
		ewarn "You have both the 'flexresp' and 'flexresp2' USE"
		ewarn "flags set. You can use 'flexresp' or 'flexresp2'"
		ewarn "but not both."
		ewarn
		ewarn "Defaulting to flexresp2..."
		sleep 10
		myconf="${myconf} --enable-flexresp2"
		
	# There is no --disable-flexresp, cannot use use_enable	
	elif use flexresp ; then
		myconf="${myconf} --enable-flexresp"

	# There is no --disable-flexresp2, cannot use use_enable	
	elif use flexresp2 ; then
		myconf="${myconf} --enable-flexresp2"
	fi
	
	# There is no --disable-react, cannot use use_enable
	if use react ; then
		myconf="${myconf} --enable-react --with-libipq-includes=/usr/include/libipq"
	fi

	econf \
		--without-oracle \
		$(use_enable ipfw) \
		$(use_enable prelude) \
		$(use_enable dynamicplugin) \
		$(use_enable timestats) \
		$(use_enable perfprofiling) \
		$(use_enable linux-smp-stats) \
		$(use_with postgres) \
		$(use_with mysql) \
		$(use_with ssl) \
		$(use_with odbc) \
		$(use_with sguil) \
		${myconf}|| die "econf failed"

# limit to single as reported by jforman on irc
	emake -j1 || die "emake failed"
}

src_install() {
	make DESTDIR="${D}" install || die "make install failed"

	keepdir /var/log/snort/

	dodoc doc/*
	dodoc ./RELEASE.NOTES
	docinto schemas ; dodoc schemas/*

	insinto /etc/snort
	doins etc/reference.config etc/classification.config \
		etc/*.map etc/threshold.conf
	newins etc/snort.conf snort.conf

# See comment above...
#
#	if use sguil ; then
#	sed -i -e "/^# output log_unified/s:# ::" \
#			-e "s:snort.log:snort_unified.log:" \
#		"${D}/etc/snort/snort.conf" || die "sed failed"
#	fi
#
# I have no idea why this is here...
#	newinitd "${FILESDIR}/snort.rc7" snort
#	newconfd "${FILESDIR}/snort.confd" snort
#
# More SGUIL stuff
#
#	if use sguil ; then
#		sed -i -e "s:/var/log/snort:/var/lib/sguil/$(hostname):" \
#		-e "/^SNORT_OPTS/s%-u snort%-m 122 -u sguil -g sguil -A none%" \
#			"${D}/etc/conf.d/snort" || die "sed failed"
#	fi

	fowners snort:snort /var/log/snort
	fperms 0770 /var/log/snort

	# install rules
	dodir /etc/snort/rules
	mv "${WORKDIR}"/rules/* "${D}/etc/snort/rules/"
}

pkg_postinst() {
	ewarn
	ewarn "Users upgrading from snort 2.4.x should take care when updating"
	ewarn "their snort.conf. A number of significant changes have been"
	ewarn "have been added to snort 2.6 including the addition of"
	ewarn "dynamically loadable preprocessors, detection engine and rules."
	ewarn "Snort 2.6 also includes the addition of performance profiling"
	ewarn "for rules & preprocessors and uses a new default pattern matcher"
	ewarn "which provides faster matching at the expense of being very"
	ewarn "memory intensive."
	ewarn
	ewarn "If you find that snort is using too much memory, your system"
	ewarn "freezes, or snort crashes after a few minutes try adding the"
	ewarn "following to your snort.conf..."
	ewarn
	ewarn "'config detection: search-method ac-sparsebands'"
	ewarn
	ewarn "This will provide high pattern matching performance at a much"
	ewarn "lower cost to memory. For more information on the new features"
	ewarn "in snort 2.6, please take a look at the release notes located in..."
	ewarn
	ewarn "  /usr/share/doc/${PF}/RELEASE.NOTES.gz"
	ewarn
	einfo "To use a database as a backend for snort you will have to"
	einfo "import the correct tables to the database."
	einfo "You will have to setup a database called snort before doing the"
	einfo "following..."
	einfo
	einfo "  MySQL: zcat /usr/share/doc/${PF}/schemas/create_mysql.gz | mysql -p snort"
	einfo
	einfo "  PostgreSQL: import /usr/share/doc/${PF}/schemas/create_postgresql.gz"
	einfo
	einfo "  ODBC: look at /usr/share/doc/${PF}/schemas/"
	einfo
	einfo "Users using the unified output plugin and barnyard do not need to"
	einfo "compile database support into snort, but still need to set up their"
	einfo "database as shown above."
	einfo
	ewarn "Only a basic set of rules was installed."
	ewarn "Please add your other sets of rules to /etc/snort/rules."
	ewarn "For more information on rules, visit ${HOMEPAGE}."
	if use sguil ; then
	einfo
	einfo
	einfo "SGUIL needs to catch up with snort 2.6.x. If you plan on using SGUIL"
	einfo "you should unmerge snort-2.6.0.2 and emerge snort-2.4.5"
	fi

}