this is initial kdump and kdump scripts, it looks when run kdump-config
load the first time, the kdump kernel can be loaded, and test crash dump
with echo c > /proc/sysrq-trigger result in system hang forever, then
had to power reset. after power reset, kdump-config load could no longer
load the kdump kernel, errors out with:
[root@bpfire-3 crash]# kdump-config load
cp: cannot stat '/etc/kdump/sysctl.conf': No such file or directory
Creating symlink /var/lib/kdump/vmlinuz.
ln: failed to create symbolic link '/var/lib/kdump/vmlinuz': No such file or directory
Unable to locate kernel hook ... failed!
Can't find kernel text map area from kcore
Cannot load /boot/vmlinuz-6.15.6-ipfire
failed to load kdump kernel ... failed!
so kdump is not working properly, but add the kdump scripts anyway, the
issue can be investigated later in future.
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
makedumpfile build by default in BPFire use static libdw.a, libelf.a but
libdw.a, libelf.a are not build with zstd which makdedumpfile static
build requires, so build makedumpfile dynamically, see [0].
[0]: https://github.com/vincentmli/bpfire/issues/109
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
commit 06dbc836a47160d51ab10f8b9d4ca356beaa7cdb
Author: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue Apr 16 18:06:47 2024 +0200
wireguard.cgi: Add a basic CGI to configure the global settings
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
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>
