# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-analyzer/snort/snort-2.3.2.ebuild,v 1.2 2005/03/22 14:27:28 ka0ttic Exp $

inherit eutils gnuconfig flag-o-matic

DESCRIPTION="Libpcap-based packet sniffer/logger/lightweight IDS"
HOMEPAGE="http://www.snort.org/"
SRC_URI="http://www.snort.org/dl/current/${P}.tar.gz
	snortsam? ( mirror://gentoo/snortsam-20050110.tar.gz )
	prelude? ( http://www.prelude-ids.org/download/releases/snort-prelude-reporting-patch-0.3.6.tar.gz )
	sguil? ( mirror://sourceforge/sguil/sguil-sensor-0.5.3.tar.gz )"

#	snortsam? ( http://www.snortsam.net/files/snort-plugin/snortsam-patch.tar.gz )
# Gentoo mirrored because of naming conflict with previous version

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~x86 -sparc -alpha ~amd64 ~ppc"
IUSE="ssl postgres mysql flexresp selinux snortsam odbc prelude inline sguil"

# Local useflag snortsam: patch snort for use with snortsam package.


DEPEND="virtual/libc
	>=dev-libs/libpcre-4.2-r1
	virtual/libpcap
	flexresp? ( ~net-libs/libnet-1.0.2a )
	postgres? ( >=dev-db/postgresql-7.2 )
	mysql? ( >=dev-db/mysql-3.23.26 )
	ssl? ( >=dev-libs/openssl-0.9.6b )
	prelude? ( >=dev-libs/libprelude-0.8 )
	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 )"

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

	if use flexresp || use inline ; then
		epatch ${FILESDIR}/2.3.0-libnet-1.0.patch
	fi

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

	if use prelude ; then
		epatch ../snort-2.2.0-prelude-0.3.6.diff
		sed -i -e "s:AC_PROG_RANLIB:AC_PROG_LIBTOOL:" configure.in \
			|| die "sed configure.in failed"
	fi

	if use sguil ; then
		cd ${S}/src/preprocessors
		epatch ${WORKDIR}/sguil-0.5.3/sensor/snort_mods/2_1/spp_portscan_sguil.patch || die
		epatch ${WORKDIR}/sguil-0.5.3/sensor/snort_mods/2_1/spp_stream4_sguil.patch || die
		cd ${S}
	fi

	# need to pick up prelude and or flexresp patches
	einfo "Regenerating autoconf/automake files"
	autoreconf -f -i || die "autoreconf failed"

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

src_compile() {
	local myconf

	# There is no --diable-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_with prelude) \
		$(use_with sguil) \
		$(use_enable inline) \
		${myconf} || die "bad ./configure"

	emake || die "compile problem"
}

pkg_preinst() {
	enewgroup snort
	enewuser snort -1 /bin/false /var/log/snort snort
	usermod -d "/var/log/snort" snort || die "usermod problem"
	usermod -g "snort" snort || die "usermod problem"
	usermod -s "/bin/false" snort || die "usermod problem"
	echo "ignore any message about CREATE_HOME above..."
}

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

	keepdir /var/log/snort/

	dodoc COPYING LICENSE doc/*
	docinto schemas ; dodoc schemas/*

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

	use prelude && doins etc/prelude-classification.config

	newinitd ${FILESDIR}/snort.rc6 snort
	newconfd ${FILESDIR}/snort.confd snort

	chown snort:snort ${D}/var/log/snort
	chmod 0770 ${D}/var/log/snort
}

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.php?t=78718'
	fi
}