Local code formatting

This commit is contained in:
Quentin 2021-09-20 11:30:00 +02:00
parent 195aec2cfe
commit 2e797d2f62
Signed by: quentin
GPG key ID: A98E9B769E4FF428
13 changed files with 424 additions and 358 deletions

2
.rustfmt.toml Normal file
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@ -0,0 +1,2 @@
hard_tabs = false
tab_spaces = 2

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@ -3,8 +3,12 @@ mod options;
mod options_test; mod options_test;
mod runtime; mod runtime;
pub use options::{ConfigOpts, ConfigOptsConsul, ConfigOptsAcme, ConfigOptsFirewall, ConfigOptsIgd}; pub use options::{
pub use runtime::{RuntimeConfig, RuntimeConfigAcme, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd}; ConfigOpts, ConfigOptsAcme, ConfigOptsConsul, ConfigOptsFirewall, ConfigOptsIgd,
};
pub use runtime::{
RuntimeConfig, RuntimeConfigAcme, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd,
};
pub const EXPIRATION_TIME: u16 = 300; pub const EXPIRATION_TIME: u16 = 300;
pub const REFRESH_TIME: u16 = 60; pub const REFRESH_TIME: u16 = 60;

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@ -15,7 +15,6 @@ use crate::config::RuntimeConfig;
// Only in runtime.rs would these options find their proper location in each // Only in runtime.rs would these options find their proper location in each
// module's struct. // module's struct.
/// Consul configuration options /// Consul configuration options
#[derive(Clone, Default, Deserialize)] #[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsConsul { pub struct ConfigOptsConsul {
@ -88,10 +87,13 @@ impl ConfigOpts {
// Currently only used in tests // Currently only used in tests
#[allow(dead_code)] #[allow(dead_code)]
pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig> pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
where Iter: IntoIterator<Item = (String, String)> { where
Iter: IntoIterator<Item = (String, String)>,
{
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?; let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?; let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?;
let firewall: ConfigOptsFirewall = envy::prefixed("DIPLONAT_FIREWALL_").from_iter(iter.clone())?; let firewall: ConfigOptsFirewall =
envy::prefixed("DIPLONAT_FIREWALL_").from_iter(iter.clone())?;
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_iter(iter.clone())?; let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_iter(iter.clone())?;
RuntimeConfig::new(Self { RuntimeConfig::new(Self {

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@ -11,19 +11,34 @@ use crate::config::*;
fn minimal_valid_options() -> HashMap<String, String> { fn minimal_valid_options() -> HashMap<String, String> {
let mut opts = HashMap::new(); let mut opts = HashMap::new();
opts.insert("DIPLONAT_CONSUL_NODE_NAME".to_string(), "consul_node".to_string()); opts.insert(
"DIPLONAT_CONSUL_NODE_NAME".to_string(),
"consul_node".to_string(),
);
opts opts
} }
fn all_valid_options() -> HashMap<String, String> { fn all_valid_options() -> HashMap<String, String> {
let mut opts = minimal_valid_options(); let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_CONSUL_URL".to_string(), "http://127.0.0.1:9999".to_string()); opts.insert(
"DIPLONAT_CONSUL_URL".to_string(),
"http://127.0.0.1:9999".to_string(),
);
opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string()); opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_ACME_EMAIL".to_string(), "bozo@bozo.net".to_string()); opts.insert(
"DIPLONAT_ACME_EMAIL".to_string(),
"bozo@bozo.net".to_string(),
);
opts.insert("DIPLONAT_FIREWALL_ENABLE".to_string(), "true".to_string()); opts.insert("DIPLONAT_FIREWALL_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_FIREWALL_REFRESH_TIME".to_string(), "20".to_string()); opts.insert(
"DIPLONAT_FIREWALL_REFRESH_TIME".to_string(),
"20".to_string(),
);
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string()); opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_IGD_PRIVATE_IP".to_string(), "172.123.43.555".to_string()); opts.insert(
"DIPLONAT_IGD_PRIVATE_IP".to_string(),
"172.123.43.555".to_string(),
);
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string()); opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "10".to_string()); opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "10".to_string());
opts opts
@ -53,10 +68,7 @@ fn ok_minimal_valid_options() {
&rt_config.consul.node_name, &rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap() opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
); );
assert_eq!( assert_eq!(rt_config.consul.url, CONSUL_URL.to_string());
rt_config.consul.url,
CONSUL_URL.to_string()
);
assert!(rt_config.acme.is_none()); assert!(rt_config.acme.is_none());
assert!(rt_config.firewall.is_none()); assert!(rt_config.firewall.is_none());
assert!(rt_config.igd.is_none()); assert!(rt_config.igd.is_none());
@ -94,17 +106,29 @@ fn ok_all_valid_options() {
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap(); let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
let firewall_refresh_time = Duration::from_secs( let firewall_refresh_time = Duration::from_secs(
opts.get(&"DIPLONAT_FIREWALL_REFRESH_TIME".to_string()).unwrap() opts
.parse::<u64>().unwrap() .get(&"DIPLONAT_FIREWALL_REFRESH_TIME".to_string())
.into()); .unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let igd_expiration_time = Duration::from_secs( let igd_expiration_time = Duration::from_secs(
opts.get(&"DIPLONAT_IGD_EXPIRATION_TIME".to_string()).unwrap() opts
.parse::<u64>().unwrap() .get(&"DIPLONAT_IGD_EXPIRATION_TIME".to_string())
.into()); .unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let igd_refresh_time = Duration::from_secs( let igd_refresh_time = Duration::from_secs(
opts.get(&"DIPLONAT_IGD_REFRESH_TIME".to_string()).unwrap() opts
.parse::<u64>().unwrap() .get(&"DIPLONAT_IGD_REFRESH_TIME".to_string())
.into()); .unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
assert_eq!( assert_eq!(
&rt_config.consul.node_name, &rt_config.consul.node_name,
@ -119,14 +143,12 @@ fn ok_all_valid_options() {
let acme = rt_config.acme.unwrap(); let acme = rt_config.acme.unwrap();
assert_eq!( assert_eq!(
&acme.email, &acme.email,
opts.get(&"DIPLONAT_ACME_EMAIL".to_string()).unwrap()); opts.get(&"DIPLONAT_ACME_EMAIL".to_string()).unwrap()
);
assert!(rt_config.firewall.is_some()); assert!(rt_config.firewall.is_some());
let firewall = rt_config.firewall.unwrap(); let firewall = rt_config.firewall.unwrap();
assert_eq!( assert_eq!(firewall.refresh_time, firewall_refresh_time);
firewall.refresh_time,
firewall_refresh_time
);
assert!(rt_config.igd.is_some()); assert!(rt_config.igd.is_some());
let igd = rt_config.igd.unwrap(); let igd = rt_config.igd.unwrap();
@ -134,12 +156,6 @@ fn ok_all_valid_options() {
&igd.private_ip, &igd.private_ip,
opts.get(&"DIPLONAT_IGD_PRIVATE_IP".to_string()).unwrap() opts.get(&"DIPLONAT_IGD_PRIVATE_IP".to_string()).unwrap()
); );
assert_eq!( assert_eq!(igd.expiration_time, igd_expiration_time);
igd.expiration_time, assert_eq!(igd.refresh_time, igd_refresh_time);
igd_expiration_time
);
assert_eq!(
igd.refresh_time,
igd_refresh_time
);
} }

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@ -1,8 +1,10 @@
use std::time::Duration; use std::time::Duration;
use anyhow::{Result, anyhow}; use anyhow::{anyhow, Result};
use crate::config::{ConfigOpts, ConfigOptsConsul, ConfigOptsAcme, ConfigOptsFirewall, ConfigOptsIgd}; use crate::config::{
ConfigOpts, ConfigOptsAcme, ConfigOptsConsul, ConfigOptsFirewall, ConfigOptsIgd,
};
// This code is inspired by the Trunk crate (https://github.com/thedodd/trunk) // This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
@ -60,14 +62,12 @@ impl RuntimeConfig {
impl RuntimeConfigConsul { impl RuntimeConfigConsul {
pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> { pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
let node_name = opts.node_name.expect( let node_name = opts
"'DIPLONAT_CONSUL_NODE_NAME' is required"); .node_name
.expect("'DIPLONAT_CONSUL_NODE_NAME' is required");
let url = opts.url.unwrap_or(super::CONSUL_URL.to_string()); let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
Ok(Self { Ok(Self { node_name, url })
node_name,
url,
})
} }
} }
@ -77,12 +77,11 @@ impl RuntimeConfigAcme {
return Ok(None); return Ok(None);
} }
let email = opts.email.expect( let email = opts
"'DIPLONAT_ACME_EMAIL' is required if ACME is enabled"); .email
.expect("'DIPLONAT_ACME_EMAIL' is required if ACME is enabled");
Ok(Some(Self { Ok(Some(Self { email }))
email,
}))
} }
} }
@ -92,12 +91,9 @@ impl RuntimeConfigFirewall {
return Ok(None); return Ok(None);
} }
let refresh_time = Duration::from_secs( let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
Ok(Some(Self { Ok(Some(Self { refresh_time }))
refresh_time,
}))
} }
} }
@ -107,12 +103,16 @@ impl RuntimeConfigIgd {
return Ok(None); return Ok(None);
} }
let private_ip = opts.private_ip.expect( let private_ip = opts
"'DIPLONAT_IGD_PRIVATE_IP' is required if IGD is enabled"); .private_ip
.expect("'DIPLONAT_IGD_PRIVATE_IP' is required if IGD is enabled");
let expiration_time = Duration::from_secs( let expiration_time = Duration::from_secs(
opts.expiration_time.unwrap_or(super::EXPIRATION_TIME).into()); opts
let refresh_time = Duration::from_secs( .expiration_time
opts.refresh_time.unwrap_or(super::REFRESH_TIME).into()); .unwrap_or(super::EXPIRATION_TIME)
.into(),
);
let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
if refresh_time.as_secs() * 2 > expiration_time.as_secs() { if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
return Err(anyhow!( return Err(anyhow!(

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@ -1,22 +1,22 @@
use std::collections::HashMap; use std::collections::HashMap;
use anyhow::{Result, anyhow}; use anyhow::{anyhow, Result};
use serde::{Serialize, Deserialize}; use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub struct ServiceEntry { pub struct ServiceEntry {
pub Tags: Vec<String> pub Tags: Vec<String>,
} }
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub struct CatalogNode { pub struct CatalogNode {
pub Services: HashMap<String, ServiceEntry> pub Services: HashMap<String, ServiceEntry>,
} }
pub struct Consul { pub struct Consul {
client: reqwest::Client, client: reqwest::Client,
url: String, url: String,
idx: Option<u64> idx: Option<u64>,
} }
impl Consul { impl Consul {
@ -24,7 +24,7 @@ impl Consul {
return Self { return Self {
client: reqwest::Client::new(), client: reqwest::Client::new(),
url: url.to_string(), url: url.to_string(),
idx: None idx: None,
}; };
} }
@ -35,16 +35,16 @@ impl Consul {
pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> { pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> {
let url = match self.idx { let url = match self.idx {
Some(i) => format!("{}/v1/catalog/node/{}?index={}", self.url, host, i), Some(i) => format!("{}/v1/catalog/node/{}?index={}", self.url, host, i),
None => format!("{}/v1/catalog/node/{}", self.url, host) None => format!("{}/v1/catalog/node/{}", self.url, host),
}; };
let http = self.client.get(&url).send().await?; let http = self.client.get(&url).send().await?;
self.idx = match http.headers().get("X-Consul-Index") { self.idx = match http.headers().get("X-Consul-Index") {
Some(v) => Some(v.to_str()?.parse::<u64>()?), Some(v) => Some(v.to_str()?.parse::<u64>()?),
None => return Err(anyhow!("X-Consul-Index header not found")) None => return Err(anyhow!("X-Consul-Index header not found")),
}; };
let resp: CatalogNode = http.json().await?; let resp: CatalogNode = http.json().await?;
return Ok(resp) return Ok(resp);
} }
} }

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@ -4,8 +4,8 @@ use std::time::Duration;
use anyhow::Result; use anyhow::Result;
use log::*; use log::*;
use serde::{Serialize, Deserialize}; use serde::{Deserialize, Serialize};
use serde_lexpr::{from_str,error}; use serde_lexpr::{error, from_str};
use tokio::sync::watch; use tokio::sync::watch;
use tokio::time::delay_for; use tokio::time::delay_for;
@ -16,12 +16,12 @@ use crate::messages;
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub enum DiplonatParameter { pub enum DiplonatParameter {
tcp_port(HashSet<u16>), tcp_port(HashSet<u16>),
udp_port(HashSet<u16>) udp_port(HashSet<u16>),
} }
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub enum DiplonatConsul { pub enum DiplonatConsul {
diplonat(Vec<DiplonatParameter>) diplonat(Vec<DiplonatParameter>),
} }
pub struct ConsulActor { pub struct ConsulActor {
@ -31,13 +31,16 @@ pub struct ConsulActor {
node: String, node: String,
retries: u32, retries: u32,
tx_open_ports: watch::Sender<messages::PublicExposedPorts> tx_open_ports: watch::Sender<messages::PublicExposedPorts>,
} }
fn retry_to_time(retries: u32, max_time: Duration) -> Duration { fn retry_to_time(retries: u32, max_time: Duration) -> Duration {
// 1.2^x seems to be a good value to exponentially increase time at a good pace // 1.2^x seems to be a good value to exponentially increase time at a good pace
// eg. 1.2^32 = 341 seconds ~= 5 minutes - ie. after 32 retries we wait 5 minutes // eg. 1.2^32 = 341 seconds ~= 5 minutes - ie. after 32 retries we wait 5 minutes
return Duration::from_secs(cmp::min(max_time.as_secs(), 1.2f64.powf(retries as f64) as u64)) return Duration::from_secs(cmp::min(
max_time.as_secs(),
1.2f64.powf(retries as f64) as u64,
));
} }
fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> { fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
@ -59,7 +62,7 @@ fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts { fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts {
let mut op = messages::PublicExposedPorts { let mut op = messages::PublicExposedPorts {
tcp_ports: HashSet::new(), tcp_ports: HashSet::new(),
udp_ports: HashSet::new() udp_ports: HashSet::new(),
}; };
for conf in params { for conf in params {
@ -79,7 +82,7 @@ impl ConsulActor {
pub fn new(config: RuntimeConfigConsul) -> Self { pub fn new(config: RuntimeConfigConsul) -> Self {
let (tx, rx) = watch::channel(messages::PublicExposedPorts { let (tx, rx) = watch::channel(messages::PublicExposedPorts {
tcp_ports: HashSet::new(), tcp_ports: HashSet::new(),
udp_ports: HashSet::new() udp_ports: HashSet::new(),
}); });
return Self { return Self {
@ -99,7 +102,11 @@ impl ConsulActor {
self.consul.watch_node_reset(); self.consul.watch_node_reset();
self.retries = cmp::min(std::u32::MAX - 1, self.retries) + 1; self.retries = cmp::min(std::u32::MAX - 1, self.retries) + 1;
let will_retry_in = retry_to_time(self.retries, Duration::from_secs(600)); let will_retry_in = retry_to_time(self.retries, Duration::from_secs(600));
error!("Failed to query consul. Will retry in {}s. {}", will_retry_in.as_secs(), e); error!(
"Failed to query consul. Will retry in {}s. {}",
will_retry_in.as_secs(),
e
);
delay_for(will_retry_in).await; delay_for(will_retry_in).await;
continue; continue;
} }

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@ -1,4 +1,4 @@
use anyhow::{Result, anyhow}; use anyhow::{anyhow, Result};
use tokio::try_join; use tokio::try_join;
use crate::config::ConfigOpts; use crate::config::ConfigOpts;
@ -20,19 +20,14 @@ impl Diplonat {
let consul_actor = ConsulActor::new(config.consul); let consul_actor = ConsulActor::new(config.consul);
let firewall_actor = FirewallActor::new( let firewall_actor = FirewallActor::new(config.firewall, &consul_actor.rx_open_ports).await?;
config.firewall,
&consul_actor.rx_open_ports
).await?;
let igd_actor = IgdActor::new( let igd_actor = IgdActor::new(config.igd, &consul_actor.rx_open_ports).await?;
config.igd,
&consul_actor.rx_open_ports
).await?;
if firewall_actor.is_none() && igd_actor.is_none() { if firewall_actor.is_none() && igd_actor.is_none() {
return Err(anyhow!( return Err(anyhow!(
"At least enable *one* module, otherwise it's boring!")); "At least enable *one* module, otherwise it's boring!"
));
} }
let ctx = Self { let ctx = Self {
@ -53,13 +48,13 @@ impl Diplonat {
async { async {
match firewall { match firewall {
Some(x) => x.listen().await, Some(x) => x.listen().await,
None => Ok(()) None => Ok(()),
} }
}, },
async { async {
match igd { match igd {
Some(x) => x.listen().await, Some(x) => x.listen().await,
None => Ok(()) None => Ok(()),
} }
}, },
)?; )?;

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@ -1,6 +1,6 @@
use std::collections::HashSet; use std::collections::HashSet;
use anyhow::{Result,Context}; use anyhow::{Context, Result};
use iptables; use iptables;
use log::*; use log::*;
use regex::Regex; use regex::Regex;
@ -8,23 +8,38 @@ use regex::Regex;
use crate::messages; use crate::messages;
pub fn setup(ipt: &iptables::IPTables) -> Result<()> { pub fn setup(ipt: &iptables::IPTables) -> Result<()> {
// ensure we start from a clean state without any rule already set // ensure we start from a clean state without any rule already set
cleanup(ipt)?; cleanup(ipt)?;
ipt.new_chain("filter", "DIPLONAT").context("Failed to create new chain")?; ipt
ipt.insert_unique("filter", "INPUT", "-j DIPLONAT", 1).context("Failed to insert jump rule")?; .new_chain("filter", "DIPLONAT")
.context("Failed to create new chain")?;
ipt
.insert_unique("filter", "INPUT", "-j DIPLONAT", 1)
.context("Failed to insert jump rule")?;
Ok(()) Ok(())
} }
pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts) -> Result<()> { pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts) -> Result<()> {
for p in ports.tcp_ports { for p in ports.tcp_ports {
ipt.append("filter", "DIPLONAT", &format!("-p tcp --dport {} -j ACCEPT", p)).context("Failed to insert port rule")?; ipt
.append(
"filter",
"DIPLONAT",
&format!("-p tcp --dport {} -j ACCEPT", p),
)
.context("Failed to insert port rule")?;
} }
for p in ports.udp_ports { for p in ports.udp_ports {
ipt.append("filter", "DIPLONAT", &format!("-p udp --dport {} -j ACCEPT", p)).context("Failed to insert port rule")?; ipt
.append(
"filter",
"DIPLONAT",
&format!("-p udp --dport {} -j ACCEPT", p),
)
.context("Failed to insert port rule")?;
} }
Ok(()) Ok(())
@ -33,18 +48,17 @@ pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts)
pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExposedPorts> { pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExposedPorts> {
let mut ports = messages::PublicExposedPorts { let mut ports = messages::PublicExposedPorts {
tcp_ports: HashSet::new(), tcp_ports: HashSet::new(),
udp_ports: HashSet::new() udp_ports: HashSet::new(),
}; };
let list = ipt.list("filter", "DIPLONAT")?; let list = ipt.list("filter", "DIPLONAT")?;
let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT").context("Regex matching open ports encountered an unexpected rule")?; let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT")
.context("Regex matching open ports encountered an unexpected rule")?;
for i in list { for i in list {
let caps = re.captures(&i); let caps = re.captures(&i);
match caps { match caps {
Some(c) => { Some(c) => {
if let (Some(raw_proto), Some(raw_port)) = (c.get(1), c.get(2)) { if let (Some(raw_proto), Some(raw_port)) = (c.get(1), c.get(2)) {
let proto = String::from(raw_proto.as_str()); let proto = String::from(raw_proto.as_str());
let number = String::from(raw_port.as_str()).parse::<u16>()?; let number = String::from(raw_port.as_str()).parse::<u16>()?;
@ -53,12 +67,10 @@ pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExpo
} else { } else {
ports.udp_ports.insert(number); ports.udp_ports.insert(number);
} }
} else { } else {
error!("Unexpected rule found in DIPLONAT chain") error!("Unexpected rule found in DIPLONAT chain")
} }
}
},
_ => {} _ => {}
} }
} }
@ -67,17 +79,21 @@ pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExpo
} }
pub fn cleanup(ipt: &iptables::IPTables) -> Result<()> { pub fn cleanup(ipt: &iptables::IPTables) -> Result<()> {
if ipt.chain_exists("filter", "DIPLONAT")? { if ipt.chain_exists("filter", "DIPLONAT")? {
ipt.flush_chain("filter", "DIPLONAT").context("Failed to flush the DIPLONAT chain")?; ipt
.flush_chain("filter", "DIPLONAT")
.context("Failed to flush the DIPLONAT chain")?;
if ipt.exists("filter", "INPUT", "-j DIPLONAT")? { if ipt.exists("filter", "INPUT", "-j DIPLONAT")? {
ipt.delete("filter", "INPUT", "-j DIPLONAT").context("Failed to delete jump rule")?; ipt
.delete("filter", "INPUT", "-j DIPLONAT")
.context("Failed to delete jump rule")?;
} }
ipt.delete_chain("filter", "DIPLONAT").context("Failed to delete chain")?; ipt
.delete_chain("filter", "DIPLONAT")
.context("Failed to delete chain")?;
} }
Ok(()) Ok(())
} }

View file

@ -6,16 +6,13 @@ use log::*;
use tokio::{ use tokio::{
select, select,
sync::watch, sync::watch,
time::{ time::{self, Duration},
Duration, };
self,
}};
use crate::config::RuntimeConfigFirewall; use crate::config::RuntimeConfigFirewall;
use crate::fw; use crate::fw;
use crate::messages; use crate::messages;
pub struct FirewallActor { pub struct FirewallActor {
pub ipt: iptables::IPTables, pub ipt: iptables::IPTables,
@ -26,7 +23,10 @@ pub struct FirewallActor {
} }
impl FirewallActor { impl FirewallActor {
pub async fn new(config: Option<RuntimeConfigFirewall>, rxp: &watch::Receiver<messages::PublicExposedPorts>) -> Result<Option<Self>> { pub async fn new(
config: Option<RuntimeConfigFirewall>,
rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Option<Self>> {
if config.is_none() { if config.is_none() {
return Ok(None); return Ok(None);
} }
@ -55,7 +55,9 @@ impl FirewallActor {
}; };
// 2. Update last ports if needed // 2. Update last ports if needed
if let Some(p) = new_ports { self.last_ports = p; } if let Some(p) = new_ports {
self.last_ports = p;
}
// 3. Update firewall rules // 3. Update firewall rules
match self.do_fw_update().await { match self.do_fw_update().await {
@ -68,18 +70,26 @@ 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)?; let curr_opened_ports = fw::get_opened_ports(&self.ipt)?;
let diff_tcp = self.last_ports.tcp_ports.difference(&curr_opened_ports.tcp_ports).copied().collect::<HashSet<u16>>(); let diff_tcp = self
let diff_udp = self.last_ports.udp_ports.difference(&curr_opened_ports.udp_ports).copied().collect::<HashSet<u16>>(); .last_ports
.tcp_ports
.difference(&curr_opened_ports.tcp_ports)
.copied()
.collect::<HashSet<u16>>();
let diff_udp = self
.last_ports
.udp_ports
.difference(&curr_opened_ports.udp_ports)
.copied()
.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(&self.ipt, ports_to_open)?;
return Ok(()); return Ok(());
} }
} }

View file

@ -1,16 +1,14 @@
use std::net::SocketAddrV4; use std::net::SocketAddrV4;
use anyhow::{Result, Context}; use anyhow::{Context, Result};
use igd::aio::*; use igd::aio::*;
use igd::PortMappingProtocol; use igd::PortMappingProtocol;
use log::*; use log::*;
use tokio::{ use tokio::{
select, select,
sync::watch, sync::watch,
time::{ time::{self, Duration},
Duration, };
self,
}};
use crate::config::RuntimeConfigIgd; use crate::config::RuntimeConfigIgd;
use crate::messages; use crate::messages;
@ -26,7 +24,10 @@ pub struct IgdActor {
} }
impl IgdActor { impl IgdActor {
pub async fn new(config: Option<RuntimeConfigIgd>, rxp: &watch::Receiver<messages::PublicExposedPorts>) -> Result<Option<Self>> { pub async fn new(
config: Option<RuntimeConfigIgd>,
rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Option<Self>> {
if config.is_none() { if config.is_none() {
return Ok(None); return Ok(None);
} }
@ -60,7 +61,9 @@ impl IgdActor {
}; };
// 2. Update last ports if needed // 2. Update last ports if needed
if let Some(p) = new_ports { self.last_ports = p; } if let Some(p) = new_ports {
self.last_ports = p;
}
// 3. Flush IGD requests // 3. Flush IGD requests
match self.do_igd().await { match self.do_igd().await {
@ -73,14 +76,25 @@ impl IgdActor {
pub async fn do_igd(&self) -> Result<()> { pub async fn do_igd(&self) -> Result<()> {
let actions = [ let actions = [
(PortMappingProtocol::TCP, &self.last_ports.tcp_ports), (PortMappingProtocol::TCP, &self.last_ports.tcp_ports),
(PortMappingProtocol::UDP, &self.last_ports.udp_ports) (PortMappingProtocol::UDP, &self.last_ports.udp_ports),
]; ];
for (proto, list) in actions.iter() { for (proto, list) in actions.iter() {
for port in *list { for port in *list {
let service_str = format!("{}:{}", self.private_ip, port); let service_str = format!("{}:{}", self.private_ip, port);
let service = service_str.parse::<SocketAddrV4>().context("Invalid socket address")?; let service = service_str
self.gateway.add_port(*proto, *port, service, self.expire.as_secs() as u32, "diplonat").await?; .parse::<SocketAddrV4>()
.context("Invalid socket address")?;
self
.gateway
.add_port(
*proto,
*port,
service,
self.expire.as_secs() as u32,
"diplonat",
)
.await?;
debug!("IGD request successful for {:#?} {}", proto, service); debug!("IGD request successful for {:#?} {}", proto, service);
} }
} }

View file

@ -7,8 +7,8 @@ mod fw_actor;
mod igd_actor; mod igd_actor;
mod messages; mod messages;
use log::*;
use diplonat::Diplonat; use diplonat::Diplonat;
use log::*;
#[tokio::main] #[tokio::main]
async fn main() { async fn main() {

View file

@ -3,14 +3,14 @@ use std::collections::HashSet;
#[derive(Debug, Clone, PartialEq, Eq)] #[derive(Debug, Clone, PartialEq, Eq)]
pub struct PublicExposedPorts { pub struct PublicExposedPorts {
pub tcp_ports: HashSet<u16>, pub tcp_ports: HashSet<u16>,
pub udp_ports: HashSet<u16> pub udp_ports: HashSet<u16>,
} }
impl PublicExposedPorts { impl PublicExposedPorts {
pub fn new() -> Self { pub fn new() -> Self {
return Self { return Self {
tcp_ports: HashSet::new(), tcp_ports: HashSet::new(),
udp_ports: HashSet::new() udp_ports: HashSet::new(),
} };
} }
} }