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conduwuit
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support configuring multiple bind hosts; default to dual localhost. 

Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-06-02 22:36:00 +00:00
parent f09e0dc137
commit 1a4736d40b
2 changed files with 67 additions and 54 deletions
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69
src/core/config/check.rs
View File

@ -27,46 +27,43 @@ pub fn check(config: &Config) -> Result<(), Error> {
));
}
if config.address.is_loopback() && cfg!(unix) {
debug!(
"Found loopback listening address {}, running checks if we're in a container.",
config.address
);
config.get_bind_addrs().iter().for_each(|addr| {
if addr.ip().is_loopback() && cfg!(unix) {
debug!("Found loopback listening address {addr}, running checks if we're in a container.",);
#[cfg(unix)]
if Path::new("/proc/vz").exists() /* Guest */ && !Path::new("/proc/bz").exists()
/* Host */
{
error!(
"You are detected using OpenVZ with a loopback/localhost listening address of {}. If you are using \
OpenVZ for containers and you use NAT-based networking to communicate with the host and guest, this \
will NOT work. Please change this to \"0.0.0.0\". If this is expected, you can ignore.",
config.address
);
}
#[cfg(unix)]
if Path::new("/proc/vz").exists() /* Guest */ && !Path::new("/proc/bz").exists()
/* Host */
{
error!(
"You are detected using OpenVZ with a loopback/localhost listening address of {addr}. If you are \
using OpenVZ for containers and you use NAT-based networking to communicate with the host and \
guest, this will NOT work. Please change this to \"0.0.0.0\". If this is expected, you can \
ignore.",
);
}
#[cfg(unix)]
if Path::new("/.dockerenv").exists() {
error!(
"You are detected using Docker with a loopback/localhost listening address of {}. If you are using a \
reverse proxy on the host and require communication to conduwuit in the Docker container via \
NAT-based networking, this will NOT work. Please change this to \"0.0.0.0\". If this is expected, \
you can ignore.",
config.address
);
}
#[cfg(unix)]
if Path::new("/.dockerenv").exists() {
error!(
"You are detected using Docker with a loopback/localhost listening address of {addr}. If you are \
using a reverse proxy on the host and require communication to conduwuit in the Docker container \
via NAT-based networking, this will NOT work. Please change this to \"0.0.0.0\". If this is \
expected, you can ignore.",
);
}
#[cfg(unix)]
if Path::new("/run/.containerenv").exists() {
error!(
"You are detected using Podman with a loopback/localhost listening address of {}. If you are using a \
reverse proxy on the host and require communication to conduwuit in the Podman container via \
NAT-based networking, this will NOT work. Please change this to \"0.0.0.0\". If this is expected, \
you can ignore.",
config.address
);
#[cfg(unix)]
if Path::new("/run/.containerenv").exists() {
error!(
"You are detected using Podman with a loopback/localhost listening address of {addr}. If you are \
using a reverse proxy on the host and require communication to conduwuit in the Podman container \
via NAT-based networking, this will NOT work. Please change this to \"0.0.0.0\". If this is \
expected, you can ignore.",
);
}
}
}
});
// rocksdb does not allow max_log_files to be 0
if config.rocksdb_max_log_files == 0 && cfg!(feature = "rocksdb") {

52
src/core/config/mod.rs
View File

@ -1,7 +1,7 @@
use std::{
collections::BTreeMap,
fmt::{self, Write as _},
net::{IpAddr, Ipv6Addr, SocketAddr},
net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr},
path::PathBuf,
};
@ -36,13 +36,20 @@ struct ListeningPort {
ports: Either<u16, Vec<u16>>,
}
#[derive(Deserialize, Clone, Debug)]
#[serde(transparent)]
struct ListeningAddr {
#[serde(with = "either::serde_untagged")]
addrs: Either<IpAddr, Vec<IpAddr>>,
}
/// all the config options for conduwuit
#[derive(Clone, Debug, Deserialize)]
#[allow(clippy::struct_excessive_bools)]
pub struct Config {
/// [`IpAddr`] conduwuit will listen on (can be IPv4 or IPv6)
#[serde(default = "default_address")]
pub address: IpAddr,
address: ListeningAddr,
/// default TCP port(s) conduwuit will listen on
#[serde(default = "default_port")]
port: ListeningPort,
@ -471,22 +478,27 @@ impl Config {
#[must_use]
pub fn get_bind_addrs(&self) -> Vec<SocketAddr> {
match &self.port.ports {
Left(port) => {
// Left is only 1 value, so make a vec with 1 value only
let port_vec = [port];
let mut addrs = Vec::new();
for host in &self.get_bind_hosts() {
for port in &self.get_bind_ports() {
addrs.push(SocketAddr::new(*host, *port));
}
}
port_vec
.iter()
.copied()
.map(|port| SocketAddr::from((self.address, *port)))
.collect::<Vec<_>>()
},
Right(ports) => ports
.iter()
.copied()
.map(|port| SocketAddr::from((self.address, port)))
.collect::<Vec<_>>(),
addrs
}
fn get_bind_hosts(&self) -> Vec<IpAddr> {
match &self.address.addrs {
Left(addr) => vec![*addr],
Right(addrs) => addrs.clone(),
}
}
fn get_bind_ports(&self) -> Vec<u16> {
match &self.port.ports {
Left(port) => vec![*port],
Right(ports) => ports.clone(),
}
}
@ -875,7 +887,11 @@ impl fmt::Display for Config {
fn true_fn() -> bool { true }
fn default_address() -> IpAddr { Ipv6Addr::LOCALHOST.into() }
fn default_address() -> ListeningAddr {
ListeningAddr {
addrs: Right(vec![Ipv4Addr::LOCALHOST.into(), Ipv6Addr::LOCALHOST.into()]),
}
}
fn default_port() -> ListeningPort {
ListeningPort {