use bitcoin::hashes::sha256d::Hash as Sha256dHash;
use bitcoin::hashes::Hash;
-use bitcoin::blockdata::script::Builder;
use bitcoin::blockdata::transaction::TxOut;
-use bitcoin::blockdata::opcodes;
use bitcoin::hash_types::BlockHash;
use chain;
use chain::Access;
+use ln::chan_utils::make_funding_redeemscript;
use ln::features::{ChannelFeatures, NodeFeatures};
use ln::msgs::{DecodeError, ErrorAction, Init, LightningError, RoutingMessageHandler, NetAddress, MAX_VALUE_MSAT};
use ln::msgs::{ChannelAnnouncement, ChannelUpdate, NodeAnnouncement, GossipTimestampFilter};
use sync::{RwLock, RwLockReadGuard};
use core::sync::atomic::{AtomicUsize, Ordering};
use sync::Mutex;
-use core::ops::Deref;
+use core::ops::{Bound, Deref};
use bitcoin::hashes::hex::ToHex;
#[cfg(feature = "std")]
Ok(msg.contents.excess_data.len() <= MAX_EXCESS_BYTES_FOR_RELAY)
}
- fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(ChannelAnnouncement, Option<ChannelUpdate>, Option<ChannelUpdate>)> {
- let mut result = Vec::with_capacity(batch_amount as usize);
+ fn get_next_channel_announcement(&self, starting_point: u64) -> Option<(ChannelAnnouncement, Option<ChannelUpdate>, Option<ChannelUpdate>)> {
let channels = self.network_graph.channels.read().unwrap();
- let mut iter = channels.range(starting_point..);
- while result.len() < batch_amount as usize {
- if let Some((_, ref chan)) = iter.next() {
- if chan.announcement_message.is_some() {
- let chan_announcement = chan.announcement_message.clone().unwrap();
- let mut one_to_two_announcement: Option<msgs::ChannelUpdate> = None;
- let mut two_to_one_announcement: Option<msgs::ChannelUpdate> = None;
- if let Some(one_to_two) = chan.one_to_two.as_ref() {
- one_to_two_announcement = one_to_two.last_update_message.clone();
- }
- if let Some(two_to_one) = chan.two_to_one.as_ref() {
- two_to_one_announcement = two_to_one.last_update_message.clone();
- }
- result.push((chan_announcement, one_to_two_announcement, two_to_one_announcement));
- } else {
- // TODO: We may end up sending un-announced channel_updates if we are sending
- // initial sync data while receiving announce/updates for this channel.
+ for (_, ref chan) in channels.range(starting_point..) {
+ if chan.announcement_message.is_some() {
+ let chan_announcement = chan.announcement_message.clone().unwrap();
+ let mut one_to_two_announcement: Option<msgs::ChannelUpdate> = None;
+ let mut two_to_one_announcement: Option<msgs::ChannelUpdate> = None;
+ if let Some(one_to_two) = chan.one_to_two.as_ref() {
+ one_to_two_announcement = one_to_two.last_update_message.clone();
}
+ if let Some(two_to_one) = chan.two_to_one.as_ref() {
+ two_to_one_announcement = two_to_one.last_update_message.clone();
+ }
+ return Some((chan_announcement, one_to_two_announcement, two_to_one_announcement));
} else {
- return result;
+ // TODO: We may end up sending un-announced channel_updates if we are sending
+ // initial sync data while receiving announce/updates for this channel.
}
}
- result
+ None
}
- fn get_next_node_announcements(&self, starting_point: Option<&PublicKey>, batch_amount: u8) -> Vec<NodeAnnouncement> {
- let mut result = Vec::with_capacity(batch_amount as usize);
+ fn get_next_node_announcement(&self, starting_point: Option<&PublicKey>) -> Option<NodeAnnouncement> {
let nodes = self.network_graph.nodes.read().unwrap();
- let mut iter = if let Some(pubkey) = starting_point {
- let mut iter = nodes.range(NodeId::from_pubkey(pubkey)..);
- iter.next();
- iter
+ let iter = if let Some(pubkey) = starting_point {
+ nodes.range((Bound::Excluded(NodeId::from_pubkey(pubkey)), Bound::Unbounded))
} else {
- nodes.range::<NodeId, _>(..)
+ nodes.range(..)
};
- while result.len() < batch_amount as usize {
- if let Some((_, ref node)) = iter.next() {
- if let Some(node_info) = node.announcement_info.as_ref() {
- if node_info.announcement_message.is_some() {
- result.push(node_info.announcement_message.clone().unwrap());
- }
+ for (_, ref node) in iter {
+ if let Some(node_info) = node.announcement_info.as_ref() {
+ if let Some(msg) = node_info.announcement_message.clone() {
+ return Some(msg);
}
- } else {
- return result;
}
}
- result
+ None
}
/// Initiates a stateless sync of routing gossip information with a peer
&Some(ref chain_access) => {
match chain_access.get_utxo(&msg.chain_hash, msg.short_channel_id) {
Ok(TxOut { value, script_pubkey }) => {
- let expected_script = Builder::new().push_opcode(opcodes::all::OP_PUSHNUM_2)
- .push_slice(&msg.bitcoin_key_1.serialize())
- .push_slice(&msg.bitcoin_key_2.serialize())
- .push_opcode(opcodes::all::OP_PUSHNUM_2)
- .push_opcode(opcodes::all::OP_CHECKMULTISIG).into_script().to_v0_p2wsh();
+ let expected_script =
+ make_funding_redeemscript(&msg.bitcoin_key_1, &msg.bitcoin_key_2).to_v0_p2wsh();
if script_pubkey != expected_script {
- return Err(LightningError{err: format!("Channel announcement key ({}) didn't match on-chain script ({})", script_pubkey.to_hex(), expected_script.to_hex()), action: ErrorAction::IgnoreError});
+ return Err(LightningError{err: format!("Channel announcement key ({}) didn't match on-chain script ({})", expected_script.to_hex(), script_pubkey.to_hex()), action: ErrorAction::IgnoreError});
}
//TODO: Check if value is worth storing, use it to inform routing, and compare it
//to the new HTLC max field in channel_update
self.channels.get(&short_channel_id)
}
+ #[cfg(c_bindings)] // Non-bindings users should use `channels`
+ /// Returns the list of channels in the graph
+ pub fn list_channels(&self) -> Vec<u64> {
+ self.channels.keys().map(|c| *c).collect()
+ }
+
/// Returns all known nodes' public keys along with announced node info.
///
/// (C-not exported) because we have no mapping for `BTreeMap`s
self.nodes.get(node_id)
}
+ #[cfg(c_bindings)] // Non-bindings users should use `nodes`
+ /// Returns the list of nodes in the graph
+ pub fn list_nodes(&self) -> Vec<NodeId> {
+ self.nodes.keys().map(|n| *n).collect()
+ }
+
/// Get network addresses by node id.
/// Returns None if the requested node is completely unknown,
/// or if node announcement for the node was never received.
#[cfg(test)]
mod tests {
use chain;
+ use ln::chan_utils::make_funding_redeemscript;
use ln::PaymentHash;
use ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
use routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate, NodeAlias, MAX_EXCESS_BYTES_FOR_RELAY, NodeId, RoutingFees, ChannelUpdateInfo, ChannelInfo, NodeAnnouncementInfo, NodeInfo};
use bitcoin::hashes::Hash;
use bitcoin::network::constants::Network;
use bitcoin::blockdata::constants::genesis_block;
- use bitcoin::blockdata::script::{Builder, Script};
+ use bitcoin::blockdata::script::Script;
use bitcoin::blockdata::transaction::TxOut;
- use bitcoin::blockdata::opcodes;
use hex;
}
fn get_channel_script(secp_ctx: &Secp256k1<secp256k1::All>) -> Script {
- let node_1_btckey = &SecretKey::from_slice(&[40; 32]).unwrap();
- let node_2_btckey = &SecretKey::from_slice(&[39; 32]).unwrap();
- Builder::new().push_opcode(opcodes::all::OP_PUSHNUM_2)
- .push_slice(&PublicKey::from_secret_key(&secp_ctx, node_1_btckey).serialize())
- .push_slice(&PublicKey::from_secret_key(&secp_ctx, node_2_btckey).serialize())
- .push_opcode(opcodes::all::OP_PUSHNUM_2)
- .push_opcode(opcodes::all::OP_CHECKMULTISIG).into_script()
- .to_v0_p2wsh()
+ let node_1_btckey = SecretKey::from_slice(&[40; 32]).unwrap();
+ let node_2_btckey = SecretKey::from_slice(&[39; 32]).unwrap();
+ make_funding_redeemscript(&PublicKey::from_secret_key(secp_ctx, &node_1_btckey),
+ &PublicKey::from_secret_key(secp_ctx, &node_2_btckey)).to_v0_p2wsh()
}
fn get_signed_channel_update<F: Fn(&mut UnsignedChannelUpdate)>(f: F, node_key: &SecretKey, secp_ctx: &Secp256k1<secp256k1::All>) -> ChannelUpdate {
let node_2_privkey = &SecretKey::from_slice(&[41; 32]).unwrap();
// Channels were not announced yet.
- let channels_with_announcements = gossip_sync.get_next_channel_announcements(0, 1);
- assert_eq!(channels_with_announcements.len(), 0);
+ let channels_with_announcements = gossip_sync.get_next_channel_announcement(0);
+ assert!(channels_with_announcements.is_none());
let short_channel_id;
{
}
// Contains initial channel announcement now.
- let channels_with_announcements = gossip_sync.get_next_channel_announcements(short_channel_id, 1);
- assert_eq!(channels_with_announcements.len(), 1);
- if let Some(channel_announcements) = channels_with_announcements.first() {
- let &(_, ref update_1, ref update_2) = channel_announcements;
+ let channels_with_announcements = gossip_sync.get_next_channel_announcement(short_channel_id);
+ if let Some(channel_announcements) = channels_with_announcements {
+ let (_, ref update_1, ref update_2) = channel_announcements;
assert_eq!(update_1, &None);
assert_eq!(update_2, &None);
} else {
panic!();
}
-
{
// Valid channel update
let valid_channel_update = get_signed_channel_update(|unsigned_channel_update| {
}
// Now contains an initial announcement and an update.
- let channels_with_announcements = gossip_sync.get_next_channel_announcements(short_channel_id, 1);
- assert_eq!(channels_with_announcements.len(), 1);
- if let Some(channel_announcements) = channels_with_announcements.first() {
- let &(_, ref update_1, ref update_2) = channel_announcements;
+ let channels_with_announcements = gossip_sync.get_next_channel_announcement(short_channel_id);
+ if let Some(channel_announcements) = channels_with_announcements {
+ let (_, ref update_1, ref update_2) = channel_announcements;
assert_ne!(update_1, &None);
assert_eq!(update_2, &None);
} else {
}
// Test that announcements with excess data won't be returned
- let channels_with_announcements = gossip_sync.get_next_channel_announcements(short_channel_id, 1);
- assert_eq!(channels_with_announcements.len(), 1);
- if let Some(channel_announcements) = channels_with_announcements.first() {
- let &(_, ref update_1, ref update_2) = channel_announcements;
+ let channels_with_announcements = gossip_sync.get_next_channel_announcement(short_channel_id);
+ if let Some(channel_announcements) = channels_with_announcements {
+ let (_, ref update_1, ref update_2) = channel_announcements;
assert_eq!(update_1, &None);
assert_eq!(update_2, &None);
} else {
}
// Further starting point have no channels after it
- let channels_with_announcements = gossip_sync.get_next_channel_announcements(short_channel_id + 1000, 1);
- assert_eq!(channels_with_announcements.len(), 0);
+ let channels_with_announcements = gossip_sync.get_next_channel_announcement(short_channel_id + 1000);
+ assert!(channels_with_announcements.is_none());
}
#[test]
let node_id_1 = PublicKey::from_secret_key(&secp_ctx, node_1_privkey);
// No nodes yet.
- let next_announcements = gossip_sync.get_next_node_announcements(None, 10);
- assert_eq!(next_announcements.len(), 0);
+ let next_announcements = gossip_sync.get_next_node_announcement(None);
+ assert!(next_announcements.is_none());
{
// Announce a channel to add 2 nodes
};
}
-
// Nodes were never announced
- let next_announcements = gossip_sync.get_next_node_announcements(None, 3);
- assert_eq!(next_announcements.len(), 0);
+ let next_announcements = gossip_sync.get_next_node_announcement(None);
+ assert!(next_announcements.is_none());
{
let valid_announcement = get_signed_node_announcement(|_| {}, node_1_privkey, &secp_ctx);
};
}
- let next_announcements = gossip_sync.get_next_node_announcements(None, 3);
- assert_eq!(next_announcements.len(), 2);
+ let next_announcements = gossip_sync.get_next_node_announcement(None);
+ assert!(next_announcements.is_some());
// Skip the first node.
- let next_announcements = gossip_sync.get_next_node_announcements(Some(&node_id_1), 2);
- assert_eq!(next_announcements.len(), 1);
+ let next_announcements = gossip_sync.get_next_node_announcement(Some(&node_id_1));
+ assert!(next_announcements.is_some());
{
// Later announcement which should not be relayed (excess data) prevent us from sharing a node
};
}
- let next_announcements = gossip_sync.get_next_node_announcements(Some(&node_id_1), 2);
- assert_eq!(next_announcements.len(), 0);
+ let next_announcements = gossip_sync.get_next_node_announcement(Some(&node_id_1));
+ assert!(next_announcements.is_none());
}
#[test]
let legacy_chan_update_info_with_none: Vec<u8> = hex::decode("2c0004000000170201010402002a060800000000000004d20801000a0d0c00040000000902040000000a0c0100").unwrap();
let read_chan_update_info_res: Result<ChannelUpdateInfo, ::ln::msgs::DecodeError> = ::util::ser::Readable::read(&mut legacy_chan_update_info_with_none.as_slice());
assert!(read_chan_update_info_res.is_err());
-
+
// 2. Test encoding/decoding of ChannelInfo
// Check we can encode/decode ChannelInfo without ChannelUpdateInfo fields present.
let chan_info_none_updates = ChannelInfo {
projects / rust-lightning / blobdiff