# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-analyzer/snort/snort-2.4.5.ebuild,v 1.13 2008/05/21 18:50:56 dev-zero 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-2.4.0-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="ssl postgres mysql flexresp selinux snortsam odbc prelude inline sguil"

DEPEND="virtual/libc
	>=dev-libs/libpcre-4.2-r1
	virtual/libpcap
	flexresp? ( ~net-libs/libnet-1.0.2a )
	postgres? ( virtual/postgresql-base )
	mysql? ( virtual/mysql )
	ssl? ( dev-libs/openssl )
	prelude? ( >=dev-libs/libprelude-0.9.0 )
	odbc? ( dev-db/unixODBC )
	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 ; then
		epatch "${WORKDIR}/2.4.0-libnet-1.0.patch"
	fi

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

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

	if use sguil ; then
		epatch "${WORKDIR}/2.4.0-spp_portscan_sguil.patch"
		epatch "${WORKDIR}/2.4.0-spp_stream4_sguil.patch"
	fi

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

	einfo "Regenerating autoconf/automake files"
	AT_M4DIR=m4 eautoreconf
}

src_compile() {
	local myconf

	# bug #149496
	append-flags -fno-strict-aliasing

	# There is no --disable-flexresp, cannot use use_enable
	use flexresp && myconf="${myconf} --enable-flexresp"

	use inline && append-flags -I/usr/include/libipq

	econf \
		$(use_with postgres postgresql) \
		$(use_with mysql) \
		$(use_with ssl openssl) \
		$(use_with odbc) \
		--without-oracle \
		$(use_enable prelude) \
		$(use_with sguil) \
		$(use_enable inline) \
		${myconf} || die "bad ./configure"

	emake || die "compile problem"
}

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

	keepdir /var/log/snort/

	dodoc doc/*
	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
	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

	newinitd "${FILESDIR}/snort.rc7" snort
	newconfd "${FILESDIR}/snort.confd" snort
	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() {
	if use mysql || use postgres || use odbc ; then
		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 first."
		einfo
		use mysql && \
			einfo "  MySQL: zcat /usr/share/doc/${PF}/schemas/create_mysql.gz | mysql -p snort"
		use postgres && \
			einfo "  PostgreSQL: import /usr/share/doc/${PF}/schemas/create_postgresql.gz"
		use odbc && einfo "SQL tables need to be created - look at /usr/share/doc/${PF}/schemas/"
		einfo
		einfo "Also, read the following Gentoo forums article:"
		einfo '   http://forums.gentoo.org/viewtopic-t-399801.html'
	fi
	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}."
}