Files
bpfire/lfs/suricata
Vincent Li 8b29912521 suricata-xdp: resolve memlock and stack smashing
suricata XDP support requires xdp-tools with
libbpf 1.4 to resolve stack smash issue.

also workaround memlock operation not permitted
by running suricata as root since load/attach
XDP program requires root privilige anyway.

see: https://github.com/vincentmli/BPFire/issues/54

Usage scenario:

since suricata IPS XDP capture mode works as
layer 2 bridge, BPFire netfilter firewall, NAT
IP route  will be bypassed. no IP address should
be assigned to red0 and green0 interface.

172.16.1.0/24          inline              172.16.1.0/24
red network<-->red0(xdp)<-->green0(xdp)<-->green network

we can run setup command to assign IP/Mask 0.0.0.0/0.0.0.0
to red0 and green0, then reboot BPFire, BPFire DHCP
will stops working after reboot. green network client
can get DHCP IP from upstream dhcp server.

start suricata manually

suricata -c /etc/suricata/suricata-xdp.yaml --af-packet
xdp_filter.bpf program will be attached to red0 and gree0
interface

not sure if we should add GUI for suricata XDP capture mode
since this is not common use case.

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
2024-10-18 19:47:59 +00:00

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###############################################################################
# #
# IPFire.org - A linux based firewall #
# Copyright (C) 2007-2023 IPFire Team <info@ipfire.org> #
# #
# 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/>. #
# #
###############################################################################
###############################################################################
# Definitions
###############################################################################
include Config
VER = 6.0.9
THISAPP = suricata-$(VER)
DL_FILE = $(THISAPP).tar.gz
DL_FROM = $(URL_IPFIRE)
DIR_APP = $(DIR_SRC)/$(THISAPP)
TARGET = $(DIR_INFO)/$(THISAPP)
###############################################################################
# Top-level Rules
###############################################################################
objects = $(DL_FILE)
$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
$(DL_FILE)_BLAKE2 = eef2500a22d581b37dafe496a57e664e6cb3aed879f138df5708ffd350bc985b4af875907c7e6cd0cf746ad6495e60414beaecf6069ba9d68b963831359362fc
install : $(TARGET)
check : $(patsubst %,$(DIR_CHK)/%,$(objects))
download :$(patsubst %,$(DIR_DL)/%,$(objects))
b2 : $(subst %,%_BLAKE2,$(objects))
###############################################################################
# Downloading, checking, b2sum
###############################################################################
$(patsubst %,$(DIR_CHK)/%,$(objects)) :
@$(CHECK)
$(patsubst %,$(DIR_DL)/%,$(objects)) :
@$(LOAD)
$(subst %,%_BLAKE2,$(objects)) :
@$(B2SUM)
###############################################################################
# Installation Details
###############################################################################
$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
@$(PREBUILD)
@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/suricata/suricata-disable-sid-2210059.patch
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/suricata/suricata-5.0.8-fix-level1-cache-line-size-detection.patch
cd $(DIR_APP) && CC=clang LDFLAGS="$(LDFLAGS)" ./configure \
--prefix=/usr \
--sysconfdir=/etc \
--localstatedir=/var \
--enable-ebpf \
--enable-ebpf-build \
--enable-gccprotect \
--disable-gccmarch-native \
--enable-non-bundled-htp \
--enable-nfqueue \
--disable-static \
--disable-python \
--with-libjansson-libraries=/usr/lib \
--with-libjansson-includes=/usr/include \
--disable-suricata-update \
--enable-rust
cd $(DIR_APP) && make $(MAKETUNING)
cd $(DIR_APP) && make install
cd $(DIR_APP) && make install-conf
#Copy suricata bpf program to /usr/lib/bpf
cd $(DIR_APP) && cp -f ebpf/xdp_filter.bpf /usr/lib/bpf/
# Remove default suricata config file.
rm -rvf /etc/suricata/suricata.yaml
# Install IPFire related config file.
install -m 0644 $(DIR_SRC)/config/suricata/suricata.yaml /etc/suricata
install -m 0644 $(DIR_SRC)/config/suricata/suricata-xdp.yaml /etc/suricata
# Create emtpy rules directory.
-mkdir -p /var/lib/suricata
# Create empty cache directory.
-mkdir -p /var/cache/suricata
# Move config files for references, threshold and classification
# to the rules directory.
rm -rfv /etc/suricata/*.config
# Set correct ownership for the classifiction config file.
# (File has to be writeable for the nobody user)
chown nobody:nobody /usr/share/suricata/classification.config
# Create empty threshold config file.
touch /usr/share/suricata/threshold.config
# Set correct ownership for the threshold.config file.
chown nobody:nobody /usr/share/suricata/threshold.config
# Set correct ownership for /var/lib/suricata and the
# contained files
chown -R nobody:nobody /var/lib/suricata
# Set correct ownership for the cache directory.
chown nobody:nobody /var/cache/suricata
# Create logging directory.
-mkdir -p /var/log/suricata
# Set correct ownership for /var/log/suricata.
chown suricata:suricata /var/log/suricata
# Install converter script needed for Core Update 167
install -m 0755 $(DIR_SRC)/config/suricata/convert-ids-backend-files /usr/sbin/convert-ids-backend-files
@rm -rf $(DIR_APP)
@$(POSTBUILD)