use ln::features::InitFeatures;
use ln::msgs;
-use ln::msgs::{ChannelMessageHandler, LightningError, RoutingMessageHandler};
+use ln::msgs::{ChannelMessageHandler, LightningError, NetAddress, RoutingMessageHandler};
use ln::channelmanager::{SimpleArcChannelManager, SimpleRefChannelManager};
use util::ser::{VecWriter, Writeable, Writer};
use ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep};
channel_encryptor: PeerChannelEncryptor,
their_node_id: Option<PublicKey>,
their_features: Option<InitFeatures>,
+ their_net_address: Option<NetAddress>,
pending_outbound_buffer: LinkedList<Vec<u8>>,
pending_outbound_buffer_first_msg_offset: usize,
}
}
+/// A function used to filter out local or private addresses
+/// https://www.iana.org./assignments/ipv4-address-space/ipv4-address-space.xhtml
+/// https://www.iana.org/assignments/ipv6-address-space/ipv6-address-space.xhtml
+fn filter_addresses(ip_address: Option<NetAddress>) -> Option<NetAddress> {
+ match ip_address{
+ // For IPv4 range 10.0.0.0 - 10.255.255.255 (10/8)
+ Some(NetAddress::IPv4{addr: [0xA, 0x00..=0xFF, _, _], port: _}) => None,
+ // For IPv4 range 0.0.0.0 - 0.255.255.255 (0/8)
+ Some(NetAddress::IPv4{addr: [0x0, 0x0..=0xFF, _, _], port: _}) => None,
+ // For IPv4 range 100.64.0.0 - 100.127.255.255 (100.64/10)
+ Some(NetAddress::IPv4{addr: [0x64, 0x40..=0x7F, _, _], port: _}) => None,
+ // For IPv4 range 127.0.0.0 - 127.255.255.255 (127/8)
+ Some(NetAddress::IPv4{addr: [0x7F, 0x0..=0xFF, _, _], port: _}) => None,
+ // For IPv4 range 169.254.0.0 - 169.254.255.255 (169.254/16)
+ Some(NetAddress::IPv4{addr: [0xA9, 0xFE, _, _], port: _}) => None,
+ // For IPv4 range 172.16.0.0 - 172.31.255.255 (172.16/12)
+ Some(NetAddress::IPv4{addr: [0xAC, 0x10..=0x1F, _, _], port: _}) => None,
+ // For IPv4 range 192.168.0.0 - 192.168.255.255 (192.168/16)
+ Some(NetAddress::IPv4{addr: [0xC0, 0xA8, _, _], port: _}) => None,
+ // For IPv4 range 192.88.99.0 - 192.88.99.255 (192.88.99/24)
+ Some(NetAddress::IPv4{addr: [0xC0, 0x58, 0x63, _], port: _}) => None,
+ // For IPv6 range 2000:0000:0000:0000:0000:0000:0000:0000 - 3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff (2000::/3)
+ Some(NetAddress::IPv6{addr: [0x20..=0x3F, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _], port: _}) => ip_address,
+ // For remaining addresses
+ Some(NetAddress::IPv6{addr: _, port: _}) => None,
+ Some(..) => ip_address,
+ None => None,
+ }
+}
+
impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, L: Deref, CMH: Deref> PeerManager<Descriptor, CM, RM, L, CMH> where
CM::Target: ChannelMessageHandler,
RM::Target: RoutingMessageHandler,
SecretKey::from_slice(&Sha256::from_engine(ephemeral_hash).into_inner()).expect("You broke SHA-256!")
}
- /// Indicates a new outbound connection has been established to a node with the given node_id.
+ /// Indicates a new outbound connection has been established to a node with the given node_id
+ /// and an optional remote network address.
+ /// The remote network address adds the option to report a remote IP address back to a connecting
+ /// peer using the init message.
+ /// The user should pass the remote network address to whatever host they are connected to.
+ ///
/// Note that if an Err is returned here you MUST NOT call socket_disconnected for the new
/// descriptor but must disconnect the connection immediately.
///
/// [`socket_disconnected()`].
///
/// [`socket_disconnected()`]: PeerManager::socket_disconnected
- pub fn new_outbound_connection(&self, their_node_id: PublicKey, descriptor: Descriptor) -> Result<Vec<u8>, PeerHandleError> {
+ pub fn new_outbound_connection(&self, their_node_id: PublicKey, descriptor: Descriptor, remote_network_address: Option<NetAddress>) -> Result<Vec<u8>, PeerHandleError> {
let mut peer_encryptor = PeerChannelEncryptor::new_outbound(their_node_id.clone(), self.get_ephemeral_key());
let res = peer_encryptor.get_act_one().to_vec();
let pending_read_buffer = [0; 50].to_vec(); // Noise act two is 50 bytes
channel_encryptor: peer_encryptor,
their_node_id: None,
their_features: None,
+ their_net_address: remote_network_address,
pending_outbound_buffer: LinkedList::new(),
pending_outbound_buffer_first_msg_offset: 0,
Ok(res)
}
- /// Indicates a new inbound connection has been established.
+ /// Indicates a new inbound connection has been established to a node with an optional remote
+ /// network address.
///
/// May refuse the connection by returning an Err, but will never write bytes to the remote end
/// (outbound connector always speaks first). Note that if an Err is returned here you MUST NOT
/// [`socket_disconnected()`].
///
/// [`socket_disconnected()`]: PeerManager::socket_disconnected
- pub fn new_inbound_connection(&self, descriptor: Descriptor) -> Result<(), PeerHandleError> {
+ pub fn new_inbound_connection(&self, descriptor: Descriptor, remote_network_address: Option<NetAddress>) -> Result<(), PeerHandleError> {
let peer_encryptor = PeerChannelEncryptor::new_inbound(&self.our_node_secret);
let pending_read_buffer = [0; 50].to_vec(); // Noise act one is 50 bytes
channel_encryptor: peer_encryptor,
their_node_id: None,
their_features: None,
+ their_net_address: remote_network_address,
pending_outbound_buffer: LinkedList::new(),
pending_outbound_buffer_first_msg_offset: 0,
peer.their_node_id = Some(their_node_id);
insert_node_id!();
let features = InitFeatures::known();
- let resp = msgs::Init { features };
+ let resp = msgs::Init { features, remote_network_address: filter_addresses(peer.their_net_address.clone())};
self.enqueue_message(peer, &resp);
peer.awaiting_pong_timer_tick_intervals = 0;
},
peer.their_node_id = Some(their_node_id);
insert_node_id!();
let features = InitFeatures::known();
- let resp = msgs::Init { features };
+ let resp = msgs::Init { features, remote_network_address: filter_addresses(peer.their_net_address.clone())};
self.enqueue_message(peer, &resp);
peer.awaiting_pong_timer_tick_intervals = 0;
},
#[cfg(test)]
mod tests {
- use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler};
+ use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses};
use ln::msgs;
+ use ln::msgs::NetAddress;
use util::events;
use util::test_utils;
let a_id = PublicKey::from_secret_key(&secp_ctx, &peer_a.our_node_secret);
let mut fd_a = FileDescriptor { fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())) };
let mut fd_b = FileDescriptor { fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())) };
- let initial_data = peer_b.new_outbound_connection(a_id, fd_b.clone()).unwrap();
- peer_a.new_inbound_connection(fd_a.clone()).unwrap();
+ let initial_data = peer_b.new_outbound_connection(a_id, fd_b.clone(), None).unwrap();
+ peer_a.new_inbound_connection(fd_a.clone(), None).unwrap();
assert_eq!(peer_a.read_event(&mut fd_a, &initial_data).unwrap(), false);
peer_a.process_events();
assert_eq!(peer_b.read_event(&mut fd_b, &fd_a.outbound_data.lock().unwrap().split_off(0)).unwrap(), false);
let a_id = PublicKey::from_secret_key(&secp_ctx, &peers[0].our_node_secret);
let mut fd_a = FileDescriptor { fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())) };
let mut fd_b = FileDescriptor { fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())) };
- let initial_data = peers[1].new_outbound_connection(a_id, fd_b.clone()).unwrap();
- peers[0].new_inbound_connection(fd_a.clone()).unwrap();
+ let initial_data = peers[1].new_outbound_connection(a_id, fd_b.clone(), None).unwrap();
+ peers[0].new_inbound_connection(fd_a.clone(), None).unwrap();
// If we get a single timer tick before completion, that's fine
assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 1);
assert!(peers[0].read_event(&mut fd_a, &fd_b.outbound_data.lock().unwrap().split_off(0)).is_err());
}
+
+ #[test]
+ fn test_filter_addresses(){
+ // Tests the filter_addresses function.
+
+ // For (10/8)
+ let ip_address = NetAddress::IPv4{addr: [10, 0, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [10, 0, 255, 201], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [10, 255, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (0/8)
+ let ip_address = NetAddress::IPv4{addr: [0, 0, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [0, 0, 255, 187], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [0, 255, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (100.64/10)
+ let ip_address = NetAddress::IPv4{addr: [100, 64, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [100, 78, 255, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [100, 127, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (127/8)
+ let ip_address = NetAddress::IPv4{addr: [127, 0, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [127, 65, 73, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [127, 255, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (169.254/16)
+ let ip_address = NetAddress::IPv4{addr: [169, 254, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [169, 254, 221, 101], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [169, 254, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (172.16/12)
+ let ip_address = NetAddress::IPv4{addr: [172, 16, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [172, 27, 101, 23], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [172, 31, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (192.168/16)
+ let ip_address = NetAddress::IPv4{addr: [192, 168, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [192, 168, 205, 159], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [192, 168, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (192.88.99/24)
+ let ip_address = NetAddress::IPv4{addr: [192, 88, 99, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [192, 88, 99, 140], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv4{addr: [192, 88, 99, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For other IPv4 addresses
+ let ip_address = NetAddress::IPv4{addr: [188, 255, 99, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone()));
+ let ip_address = NetAddress::IPv4{addr: [123, 8, 129, 14], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone()));
+ let ip_address = NetAddress::IPv4{addr: [2, 88, 9, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone()));
+
+ // For (2000::/3)
+ let ip_address = NetAddress::IPv6{addr: [32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone()));
+ let ip_address = NetAddress::IPv6{addr: [45, 34, 209, 190, 0, 123, 55, 34, 0, 0, 3, 27, 201, 0, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone()));
+ let ip_address = NetAddress::IPv6{addr: [63, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone()));
+
+ // For other IPv6 addresses
+ let ip_address = NetAddress::IPv6{addr: [24, 240, 12, 32, 0, 0, 0, 0, 20, 97, 0, 32, 121, 254, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv6{addr: [68, 23, 56, 63, 0, 0, 2, 7, 75, 109, 0, 39, 0, 0, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+ let ip_address = NetAddress::IPv6{addr: [101, 38, 140, 230, 100, 0, 30, 98, 0, 26, 0, 0, 57, 96, 0, 0], port: 1000};
+ assert_eq!(filter_addresses(Some(ip_address.clone())), None);
+
+ // For (None)
+ assert_eq!(filter_addresses(None), None);
+ }
}
projects / rust-lightning / blobdiff