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https://github.com/BastilleBSD/bastille.git
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132 lines
3.9 KiB
Bash
132 lines
3.9 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2018-2023, Christer Edwards <christer.edwards@gmail.com>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# * Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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. /usr/local/share/bastille/common.sh
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. /usr/local/etc/bastille/bastille.conf
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usage() {
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error_exit "Usage: bastille setup [pf|bastille0|zfs|vnet]"
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}
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# Check for too many args
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if [ $# -gt 1 ]; then
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usage
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fi
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# Configure bastille0 network interface
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configure_bastille0() {
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info "Configuring bastille0 loopback interface"
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sysrc cloned_interfaces+=lo1
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sysrc ifconfig_lo1_name="bastille0"
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info "Bringing up new interface: bastille0"
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service netif cloneup
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}
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configure_vnet() {
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info "Configuring bridge interface"
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sysrc cloned_interfaces+=bridge1
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sysrc ifconfig_bridge1_name=bastille1
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info "Bringing up new interface: bastille1"
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service netif cloneup
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}
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# Configure pf firewall
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configure_pf() {
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if [ ! -f "${bastille_pf_conf}" ]; then
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local ext_if
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ext_if=$(netstat -rn | awk '/default/ {print $4}' | head -n1)
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info "Determined default network interface: ($ext_if)"
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info "${bastille_pf_conf} does not exist: creating..."
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## creating pf.conf
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cat << EOF > ${bastille_pf_conf}
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## generated by bastille setup
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ext_if="$ext_if"
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set block-policy return
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scrub in on \$ext_if all fragment reassemble
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set skip on lo
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table <jails> persist
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nat on \$ext_if from <jails> to any -> (\$ext_if:0)
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rdr-anchor "rdr/*"
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block in all
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pass out quick keep state
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antispoof for \$ext_if inet
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pass in inet proto tcp from any to any port ssh flags S/SA keep state
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EOF
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sysrc pf_enable=YES
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else
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error_exit "${bastille_pf_conf} already exists. Exiting."
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fi
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}
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# Configure ZFS
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configure_zfs() {
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if [ ! "$(kldstat -q -m zfs)" ]; then
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info "ZFS module not loaded; skipping..."
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else
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## attempt to determine bastille_zroot from `zpool list`
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bastille_zroot=$(zpool list | grep -v NAME | awk '{print $1}')
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sysrc -f "${bastille_prefix}/bastille.conf" bastille_zfs_enable=YES
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sysrc -f "${bastille_prefix}/bastille.conf" bastille_zfs_zpool="${bastille_zroot}"
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fi
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}
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# Run all base functions (w/o vnet) if no args
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if [ $# -eq 0 ]; then
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sysrc bastille_enable=YES
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configure_bastille0
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configure_pf
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configure_zfs
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fi
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# Handle special-case commands first.
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case "$1" in
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help|-h|--help)
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usage
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;;
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pf|firewall)
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configure_pf
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;;
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bastille0|loopback)
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configure_bastille0
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;;
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zfs|storage)
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configure_zfs
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;;
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bastille1|vnet|bridge)
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configure_vnet
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;;
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esac
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