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ddos: add ddos init script

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add ddos init to load/attach XDP DDoS main
program with empty tail call table as place
holder for tcp, udp, icmp...etc XDP DDoS program

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
This commit is contained in:
Vincent Li
2025-03-28 19:02:57 -07:00
parent 6ff3d8e48e
commit 88c90aadcd
6 changed files with 85 additions and 3 deletions
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77
src/initscripts/system/ddos Executable file
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#!/bin/sh
###############################################################################
# #
# IPFire.org - A linux based firewall #
# Copyright (C) 2007-2022 IPFire Team <info@ipfire.org> #
# Copyright (C) 2024-2025 BPFire <vincent.mc.li@gmail.com> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
###############################################################################
. /etc/sysconfig/rc
. $rc_functions
eval $(/usr/local/bin/readhash /var/ipfire/ddos/settings)
load_ddos () {
/usr/sbin/xdp-loader status red0 | grep -w 'xdp_ddos'
if [ $? -ne 0 ]; then
xdp-loader load red0 -P 80 -p /sys/fs/bpf/xdp-ddos -n xdp_ddos /usr/lib/bpf/xdp_ddos.bpf.o
if [ $? -ge 1 ]; then
boot_mesg "Native mode not supported, try SKB"
xdp-loader load red0 -m skb -P 80 -p /sys/fs/bpf/xdp-ddos -n xdp_ddos /usr/lib/bpf/xdp_ddos.bpf.o
fi
fi
}
unload_ddos () {
/usr/sbin/xdp-loader status red0 | grep -w 'xdp_ddos'
if [ $? -eq 0 ]; then
prog_id=$(xdp-loader status red0 | grep 'xdp_ddos' | awk '{print $4}')
/usr/sbin/xdp-loader unload -i $prog_id red0
else
boot_mesg "Error xdp_ddos not loaded!"
fi
}
case "$1" in
start)
boot_mesg -n "Starting xdp-ddos..."
if [ "$ENABLE_DDOS" == "on" ]; then
load_ddos
fi
;;
stop)
boot_mesg "Stopping xdp-ddos..."
if [ "$ENABLE_DDOS" == "off" ]; then
unload_ddos
fi
;;
restart)
$0 stop
sleep 1
$0 start
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
;;
esac