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firewall: open ports in ipv6 as well as ipv4 (using ip6tables)

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This commit is contained in:
Alex 2023-04-04 13:33:54 +02:00
parent eba95c9b28
commit 846c4344aa
1 changed files with 28 additions and 23 deletions
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51
src/fw_actor.rs
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@ -12,7 +12,8 @@ use tokio::{
use crate::{fw, messages}; use crate::{fw, messages};
pub struct FirewallActor { pub struct FirewallActor {
pub ipt: iptables::IPTables, pub ipt_v4: iptables::IPTables,
pub ipt_v6: iptables::IPTables,
rx_ports: watch::Receiver<messages::PublicExposedPorts>, rx_ports: watch::Receiver<messages::PublicExposedPorts>,
last_ports: messages::PublicExposedPorts, last_ports: messages::PublicExposedPorts,
refresh: Duration, refresh: Duration,
@ -20,17 +21,19 @@ pub struct FirewallActor {
impl FirewallActor { impl FirewallActor {
pub async fn new( pub async fn new(
_refresh: Duration, refresh: Duration,
rxp: &watch::Receiver<messages::PublicExposedPorts>, rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Self> { ) -> Result<Self> {
let ctx = Self { let ctx = Self {
ipt: iptables::new(false)?, ipt_v4: iptables::new(false)?,
ipt_v6: iptables::new(true)?,
rx_ports: rxp.clone(), rx_ports: rxp.clone(),
last_ports: messages::PublicExposedPorts::new(), last_ports: messages::PublicExposedPorts::new(),
refresh: _refresh, refresh,
}; };
fw::setup(&ctx.ipt)?; fw::setup(&ctx.ipt_v4)?;
fw::setup(&ctx.ipt_v6)?;
return Ok(ctx); return Ok(ctx);
} }
@ -59,27 +62,29 @@ impl FirewallActor {
} }
pub async fn do_fw_update(&self) -> Result<()> { pub async fn do_fw_update(&self) -> Result<()> {
let curr_opened_ports = fw::get_opened_ports(&self.ipt)?; for ipt in [&self.ipt_v4, &self.ipt_v6] {
let curr_opened_ports = fw::get_opened_ports(ipt)?;
let diff_tcp = self let diff_tcp = self
.last_ports .last_ports
.tcp_ports .tcp_ports
.difference(&curr_opened_ports.tcp_ports) .difference(&curr_opened_ports.tcp_ports)
.copied() .copied()
.collect::<HashSet<u16>>(); .collect::<HashSet<u16>>();
let diff_udp = self let diff_udp = self
.last_ports .last_ports
.udp_ports .udp_ports
.difference(&curr_opened_ports.udp_ports) .difference(&curr_opened_ports.udp_ports)
.copied() .copied()
.collect::<HashSet<u16>>(); .collect::<HashSet<u16>>();
let ports_to_open = messages::PublicExposedPorts { let ports_to_open = messages::PublicExposedPorts {
tcp_ports: diff_tcp, tcp_ports: diff_tcp,
udp_ports: diff_udp, udp_ports: diff_udp,
}; };
fw::open_ports(&self.ipt, ports_to_open)?; fw::open_ports(ipt, ports_to_open)?;
}
return Ok(()); return Ok(());
} }