mirror of
https://github.com/hackacad/bastille.git
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119 lines
3.7 KiB
Bash
119 lines
3.7 KiB
Bash
#!/bin/sh
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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/colors.pre.sh
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. /usr/local/etc/bastille/bastille.conf
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usage() {
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echo -e "${COLOR_RED}Usage: bastille rdr TARGET [clear] | [list] | [tcp <host_port> <jail_port>] | [udp <host_port> <jail_port>]${COLOR_RESET}"
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exit 1
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}
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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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esac
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if [ $# -lt 2 ]; then
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usage
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fi
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TARGET="${1}"
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shift
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# Can only redirect to single jail
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if [ "${TARGET}" = 'ALL' ]; then
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echo -e "${COLOR_RED}Can only redirect to single jail${COLOR_RESET}"
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exit 1
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fi
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# Check jail name valid
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JAIL_NAME=$(jls -j "${TARGET}" name 2>/dev/null)
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if [ -z "${JAIL_NAME}" ]; then
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echo -e "${COLOR_RED}Jail not found: ${TARGET}${COLOR_RESET}"
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exit 1
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fi
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# Check jail ip4 address valid
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JAIL_IP=$(jls -j "${TARGET}" ip4.addr 2>/dev/null)
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if [ -z "${JAIL_IP}" -o "${JAIL_IP}" = "-" ]; then
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echo -e "${COLOR_RED}Jail IP not found: ${TARGET}${COLOR_RESET}"
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exit 1
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fi
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# Check rdr-anchor is setup in pf.conf
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if !(pfctl -sn | grep rdr-anchor | grep 'rdr/\*' >/dev/null); then
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echo -e "${COLOR_RED}rdr-anchor not found in pf.conf${COLOR_RESET}"
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exit 1
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fi
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# Check ext_if is setup in pf.conf
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EXT_IF=$(grep '^[[:space:]]*ext_if[[:space:]]*=' /etc/pf.conf)
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if [ -z "${JAIL_NAME}" ]; then
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echo -e "${COLOR_RED}ext_if not defined in pf.conf${COLOR_RESET}"
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exit 1
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fi
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while [ $# -gt 0 ]; do
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case "$1" in
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list)
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pfctl -a "rdr/${JAIL_NAME}" -Psn 2>/dev/null
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shift
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;;
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clear)
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pfctl -a "rdr/${JAIL_NAME}" -Fn
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shift
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;;
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tcp)
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if [ $# -lt 3 ]; then
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usage
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fi
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( pfctl -a "rdr/${JAIL_NAME}" -Psn;
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printf '%s\nrdr on $ext_if inet proto tcp to port %d -> %s port %d\n' "$EXT_IF" "$2" "$JAIL_IP" "$3" ) \
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| pfctl -a "rdr/${JAIL_NAME}" -f-
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shift 3
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;;
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udp)
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if [ $# -lt 3 ]; then
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usage
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fi
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( pfctl -a "rdr/${JAIL_NAME}" -Psn;
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printf '%s\nrdr on $ext_if inet proto udp to port %d -> %s port %d\n' "$EXT_IF" "$2" "$JAIL_IP" "$3" ) \
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| pfctl -a "rdr/${JAIL_NAME}" -f-
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shift 3
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;;
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*)
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usage
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;;
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esac
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done
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