install_bro.sh

#!/bin/bash -e

REPO=git://git.bro.org/bro
STATE_FILE=/usr/local/bro/INSTALLED_VERSION

function die {
    echo $*
    exit 1
}

function install_prereqs {
    yum install -y caf || true #not needed for 2.4.1 and ealier, so ok to fail.
    yum install -y git cmake cmake28 make gcc gcc-c++ flex bison libpcap-devel openssl-devel python-devel swig file-devel jemalloc-devel GeoIP-devel
}

function checkout_version {
    VERSION=$1
    git fetch
    git checkout -f $VERSION
    git submodule update --recursive -f || git submodule update --recursive
}

function install_bro {
    VERSION=$1
    if [ -e $STATE_FILE ] && grep -wq $VERSION $STATE_FILE ; then
        echo "bro ${VERSION} already installed"
        return
    fi

    install_prereqs

    cd /usr/src
    if [ ! -e bro ] ; then
        git clone --recursive $REPO
    fi

    cd bro
    checkout_version $VERSION

    pcap=""
    if [ -e /opt/snf ]; then
        pcap="--with-pcap=/opt/snf"
    fi
    if [ -e /opt/pfring ] ; then
        pcap="--with-pcap=/opt/pfring"
    fi

    malloc=""
    if [ -e /usr/bin/jemalloc.sh -a $VERSION != "v2.2" ] ; then
        malloc="--with-jemalloc=/usr/"
    fi

    broker=""
    if grep -q -- --enable-broker configure ; then
        broker="--enable-broker"
    fi

    ./configure --prefix=/usr/local/bro $pcap $malloc $broker || die "configure failed"
    make -j 8 -l 8 || die "build failed"
    make install || die "install failed"

    echo $VERSION > $STATE_FILE

    /usr/local/bro/bin/broctl install || die "broctl install failed"
}

function main {
    if [[ $# -ne 1 ]]; then
        echo "Usage $0 version"
        exit 1
    fi
    VERSION=$1
    echo "Installing bro $VERSION"
    install_bro $VERSION
}

main $*
exit 0