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Use nftables exclusively

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billz 2025-02-27 09:56:46 -08:00
parent fcaafd55b5
commit 684b2a75d9
1 changed files with 19 additions and 72 deletions
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91
installers/common.sh
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@ -26,7 +26,6 @@ readonly raspap_adblock="/etc/dnsmasq.d/090_adblock.conf"
readonly raspap_sysctl="/etc/sysctl.d/90_raspap.conf"
readonly raspap_network="$raspap_dir/networking/"
readonly raspap_router="/etc/lighttpd/conf-available/50-raspap-router.conf"
readonly rulesv4="/etc/iptables/rules.v4"
readonly blocklist_hosts="https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts"
readonly blocklist_domains="https://big.oisd.nl/dnsmasq"
@ -266,10 +265,7 @@ function _install_dependencies() {
echo "${network_tools} will be installed from the main deb sources list"
fi
# Set dconf-set-selections
echo iptables-persistent iptables-persistent/autosave_v4 boolean true | sudo debconf-set-selections
echo iptables-persistent iptables-persistent/autosave_v6 boolean true | sudo debconf-set-selections
sudo apt-get install -y lighttpd git hostapd dnsmasq iptables-persistent $php_package $dhcpcd_package $iw_package $rsync_package $network_tools $ifconfig_package vnstat qrencode jq isoquery || _install_status 1 "Unable to install dependencies"
sudo apt-get install -y lighttpd git hostapd dnsmasq $php_package $dhcpcd_package $iw_package $rsync_package $network_tools $ifconfig_package vnstat qrencode jq isoquery || _install_status 1 "Unable to install dependencies"
_install_status 0
}
@ -774,79 +770,29 @@ function _enable_raspap_daemon() {
sudo systemctl enable raspapd.service || _install_status 1 "Failed to enable raspap.service"
}
# Configure IP forwarding, set nftables rules if iptables (legacy) is unavailable
# Configure IP forwarding, setting nftables rules
function _configure_networking() {
_install_log "Configuring networking"
echo "Enabling IP forwarding"
echo "net.ipv4.ip_forward=1" | sudo tee $raspap_sysctl > /dev/null || _install_status 1 "Unable to set IP forwarding"
sudo sysctl -p $raspap_sysctl || _install_status 1 "Unable to execute sysctl"
sudo /etc/init.d/procps restart || _install_status 1 "Unable to execute procps"
echo "net.ipv4.ip_forward=1" | sudo tee /etc/sysctl.d/99-raspap.conf > /dev/null || _install_status 1 "Unable to set IP forwarding"
sudo sysctl --system || _install_status 1 "Unable to reload sysctl settings"
echo "Checking firewall backend"
if command -v iptables-legacy > /dev/null 2>&1; then
echo "Using iptables (legacy)"
firewall_backend="iptables"
else
echo "Using nftables"
firewall_backend="nftables"
fi
echo "Configuring nftables rules"
if [[ "$firewall_backend" == "iptables" ]]; then
echo "Configuring iptables rules"
rules=(
"-A POSTROUTING -j MASQUERADE"
"-A POSTROUTING -s 192.168.50.0/24 ! -d 192.168.50.0/24 -j MASQUERADE"
)
for rule in "${rules[@]}"; do
if grep -- "$rule" $rulesv4 > /dev/null; then
echo "Rule already exists: ${rule}"
else
rule=$(sed -e 's/^\(-A POSTROUTING\)/-t nat \1/' <<< $rule)
echo "Adding rule: ${rule}"
sudo iptables $rule || _install_status 1 "Unable to execute iptables"
added=true
fi
done
# Persist rules if added
if [ "$added" = true ]; then
echo "Persisting iptables rules"
sudo iptables-save | sudo tee $rulesv4 > /dev/null || _install_status 1 "Unable to execute iptables-save"
fi
else
echo "Configuring nftables rules"
nft_config="/etc/nftables.conf"
# Define NAT table and masquerade rules
sudo nft add table ip nat
sudo nft add chain ip nat POSTROUTING { type nat hook postrouting priority 100 \; }
sudo nft add rule ip nat POSTROUTING oifname "wlan0" masquerade
sudo nft add rule ip nat POSTROUTING ip saddr 192.168.50.0/24 oifname "eth0" masquerade
sudo nft list ruleset > /dev/null 2>&1
if [ $? -ne 0 ]; then
_install_status 1 "nftables is not running or unsupported"
fi
sudo nft add table ip nat || _install_status 1 "Unable to add nftables table"
rules=(
"add chain ip nat postrouting { type nat hook postrouting priority 100 \; }"
"add rule ip nat postrouting masquerade"
"add rule ip nat postrouting ip saddr 192.168.50.0/24 ip daddr != 192.168.50.0/24 masquerade"
)
for rule in "${rules[@]}"; do
if sudo nft list ruleset | grep -q "$rule"; then
echo "Rule already exists: ${rule}"
else
echo "Adding rule: ${rule}"
sudo nft "$rule" || _install_status 1 "Unable to execute nftables rule"
added=true
fi
done
# Persist rules if added
if [ "$added" = true ]; then
echo "Persisting nftables rules"
sudo nft list ruleset | sudo tee $nft_config > /dev/null || _install_status 1 "Unable to save nftables rules"
sudo systemctl enable nftables
sudo systemctl restart nftables
fi
fi
# Save rules to persist across reboots
echo "Saving nftables rules"
sudo nft list ruleset | sudo tee /etc/nftables.conf > /dev/null || _install_status 1 "Unable to save nftables rules"
# Enable nftables service for persistence
sudo systemctl enable nftables.service
sudo systemctl restart nftables.service || _install_status 1 "Unable to restart nftables service"
# Prompt to install RaspAP daemon
echo -n "Enable RaspAP control service (Recommended)? [Y/n]: "
@ -864,6 +810,7 @@ function _configure_networking() {
_install_status 0
}
# Prompt to configure TCP BBR option
function _prompt_configure_tcp_bbr() {
_install_log "Configure TCP BBR congestion control"