preparation for pwru:
mount -t debugfs none /sys/kernel/debug
echo 0 > /proc/sys/kernel/kptr_restrict
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
UDP DDoS has pattern of flooding game server with
random source IP and UDP with random payload. game
server UDP traffic requires certain payload
pattern, so this XDP program can serve as example
to stop UDP DDoS attack with UDP payload that does not
match game UDP traffic payload pattern.
without UDP DDoS protection, under DDoS attack:
BPFire UI RED Traffic: in 9xx Mbit/s.
with UDP DDoS protection, under DDoS attack:
BPFire UI RED Traffic: in 1xx Mbit/s.
Tested-by: Muhammad Haikal <eykalpirates@gmail.com>
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
move haproxy to core package
prepare /var/ipfire/haproxy for haproxy UI, use
/var/ipfire/haproxy/haproxy.cfg
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
add XDP TLS SNI logging with bpf ringbuf
drop xdp_sni.bpf.o reverse_string due to
bpf verifier complaining program is too large.
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
if XDP DNS is enabled, and BPFire reboot, XDP
DNS program should be attached and DNS query being
monitored after reboot.
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
add xdpdns init script to load/unload xdp_dns_denylist
program and run xdp_dns_log to log dns query to system log
rm log/configroot log/initscripts to build image
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
whenever compile kernel due to kernel change
lunatik needs to be recompiled too since
lunatik depends on kernel
change filter example Makefile to depend on
current kernel build version
diff --git a/examples/filter/Makefile b/examples/filter/Makefile
index f7eb0f6d..e30566a2 100644
--- a/examples/filter/Makefile
+++ b/examples/filter/Makefile
@@ -1,10 +1,12 @@
# SPDX-FileCopyrightText: (c) 2023-2024 Ring Zero Desenvolvimento de Software LTDA
# SPDX-License-Identifier: MIT OR GPL-2.0-only
+VMLINUX_BTF_PATH = /lib/modules/${shell uname -r}/build
+
all: vmlinux https.o
vmlinux:
- bpftool btf dump file /sys/kernel/btf/vmlinux format c > vmlinux.h
+ bpftool btf dump file $(VMLINUX_BTF_PATH)/vmlinux format c > vmlinux.h
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
xdp-loader to load https.o result in error below:
libbpf: loading kernel BTF '/sys/kernel/btf/vmlinux': 0
libbpf: extern (func ksym) 'bpf_luaxdp_run': not found in kernel or module BTFs
libbpf: failed to load object '/usr/lib/bpf/https.o'
libxdp: Failed to load program filter_https: Invalid argument
Couldn't attach XDP program on iface 'green0': Invalid argument(-22)
xdp-tools/xdp-loader is built statically with libbpf 1.2
should not be xdp-loader libbpf issue
still try to upgrade bpfire libbpf to 1.3.0 for testing
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
when mouse select, vim automatically turns into
visual mode, this is not convienent when copy
and paste in vim with mouse select. create this
setting for root user.
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
When loxilb and keepalived are enabled, after BPFire
rebooted, loxilb and keepalived failed to start and
shows as "STOPPED" from UI, this is not expected since
we want to loxilb and keepalived to continue to be enabled
after reboot based on the enabled state of loxilb and
keepalived before reboot.
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
BPFire red0 does not support multicast, need to
have unicast peer configured, then the virtual
ipaddress can be added to red0 interface.
the UI requires /var/ipfire/keepalived/runsettings
/var/ipfire/keepalived/settings to be created, so
add them lfs/configroot
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
change keepalived default config to
/var/ipfire/keepalived/keepalived.conf so keepalived WebUI
could read/write the configuration file. also add
/var/ipfire/keepalived directory
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
keepalived: create /var/ipfire/keepalived
