let push_msat = (channel_value_sat - channel_reserve_satoshis) * 1000;
// Have node0 initiate a channel to node1 with aforementioned parameters
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_sat, push_msat, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_sat, push_msat, 42, None, None).unwrap();
// Extract the channel open message from node0 to node1
let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- match nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), MAX_FUNDING_SATOSHIS_NO_WUMBO + 1, 0, 42, None) {
+ match nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), MAX_FUNDING_SATOSHIS_NO_WUMBO + 1, 0, 42, None, None) {
Err(APIError::APIMisuseError { err }) => {
assert_eq!(format!("funding_value must not exceed {}, it was {}", MAX_FUNDING_SATOSHIS_NO_WUMBO, MAX_FUNDING_SATOSHIS_NO_WUMBO + 1), err);
},
push_amt -= feerate_per_kw as u64 * (commitment_tx_base_weight(&channel_type_features) + 4 * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000 * 1000;
push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
- let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, if send_from_initiator { 0 } else { push_amt }, 42, None).unwrap();
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, if send_from_initiator { 0 } else { push_amt }, 42, None, None).unwrap();
let mut open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
if !send_from_initiator {
open_channel_message.channel_reserve_satoshis = 0;
}
if steps & 0x0f == 0 { return; }
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
if steps & 0x0f == 1 { return; }
// HTLC.
let mut push_amt = 100_000_000;
push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, &channel_type_features);
- assert_eq!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt + 1, 42, None).unwrap_err(),
+ assert_eq!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt + 1, 42, None, None).unwrap_err(),
APIError::APIMisuseError { err: "Funding amount (356) can't even pay fee for initial commitment transaction fee of 357.".to_string() });
// During open, we don't have a "counterparty channel reserve" to check against, so that
// requirement only comes into play on the open_channel handling side.
push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt, 42, None, None).unwrap();
let mut open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
open_channel_msg.push_msat += 1;
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
// Open a channel between `nodes[0]` and `nodes[1]`, for which the funding transaction is never
// broadcasted, even though it's created by `nodes[0]`.
- let expected_temporary_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
+ let expected_temporary_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None, None).unwrap();
let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel);
let accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
// BOLT #2 spec: Sending node must ensure temporary_channel_id is unique from any other channel ID with the same peer.
let channel_value_satoshis=10000;
let push_msat=10001;
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).unwrap();
let node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &node0_to_1_send_open_channel);
get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
// Create a second channel with the same random values. This used to panic due to a colliding
// channel_id, but now panics due to a colliding outbound SCID alias.
- assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
+ assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_err());
}
#[test]
// BOLT #2 spec: Sending node must set funding_satoshis to less than 2^24 satoshis
let channel_value_satoshis=2^24;
let push_msat=10001;
- assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
+ assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_err());
// BOLT #2 spec: Sending node must set push_msat to equal or less than 1000 * funding_satoshis
let channel_value_satoshis=10000;
// Test when push_msat is equal to 1000 * funding_satoshis.
let push_msat=1000*channel_value_satoshis+1;
- assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
+ assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_err());
// BOLT #2 spec: Sending node must set set channel_reserve_satoshis greater than or equal to dust_limit_satoshis
let channel_value_satoshis=10000;
let push_msat=10001;
- assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_ok()); //Create a valid channel
+ assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_ok()); //Create a valid channel
let node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
assert!(node0_to_1_send_open_channel.channel_reserve_satoshis>=node0_to_1_send_open_channel.dust_limit_satoshis);
let channel_value_satoshis=1000000;
let push_msat=10001;
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).unwrap();
let mut node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
node0_to_1_send_open_channel.dust_limit_satoshis = 547;
node0_to_1_send_open_channel.channel_reserve_satoshis = 100001;
// We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in OutboundV1Channel::new()
if let Err(error) = OutboundV1Channel::new(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
&nodes[0].keys_manager, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &nodes[1].node.init_features(), 1000000, 1000000, 0,
- &low_our_to_self_config, 0, 42)
+ &low_our_to_self_config, 0, 42, None)
{
match error {
APIError::APIMisuseError { err } => { assert!(regex::Regex::new(r"Configured with an unreasonable our_to_self_delay \(\d+\) putting user funds at risks").unwrap().is_match(err.as_str())); },
} else { assert!(false) }
// We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in InboundV1Channel::new()
- nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
+ nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None, None).unwrap();
let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
open_channel.to_self_delay = 200;
if let Err(error) = InboundV1Channel::new(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
} else { assert!(false); }
// We test msg.to_self_delay <= config.their_to_self_delay is enforced in Chanel::accept_channel()
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1000000, 1000000, 42, None, None).unwrap();
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()));
let mut accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
accept_channel.to_self_delay = 200;
check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: reason_msg }, [nodes[1].node.get_our_node_id()], 1000000);
// We test msg.to_self_delay <= config.their_to_self_delay is enforced in InboundV1Channel::new()
- nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
+ nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None, None).unwrap();
let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
open_channel.to_self_delay = 200;
if let Err(error) = InboundV1Channel::new(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
let mut override_config = UserConfig::default();
override_config.channel_handshake_config.our_to_self_delay = 200;
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, Some(override_config)).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, None, Some(override_config)).unwrap();
// Assert the channel created by node0 is using the override config.
let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(zero_config.clone())]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, Some(zero_config)).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, None, Some(zero_config)).unwrap();
let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
assert_eq!(res.htlc_minimum_msat, 1);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_accept_conf.clone())]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, Some(manually_accept_conf)).unwrap();
let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &res);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_accept_conf.clone())]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, Some(manually_accept_conf)).unwrap();
let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &res);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_accept_conf.clone())]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, Some(manually_accept_conf)).unwrap();
let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &res);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
// Create an initial channel
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
let mut open_chan_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_chan_msg);
let accept_chan_msg = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
// Create an first channel channel
- nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+ nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
let mut open_chan_msg_chan_1_0 = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
// Create an second channel
- nodes[2].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 43, None).unwrap();
+ nodes[2].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 43, None, None).unwrap();
let mut open_chan_msg_chan_2_0 = get_event_msg!(nodes[2], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
// Modify the `OpenChannel` from `nodes[2]` to `nodes[0]` to ensure that it uses the same
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
// Create an initial channel
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
let mut open_chan_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_chan_msg);
nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
}
// Now try to create a second channel which has a duplicate funding output.
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
let open_chan_2_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_chan_2_msg);
nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
}
};
check_added_monitors!(nodes[0], 0);
- nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created);
+ nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created.unwrap());
// At this point we'll look up if the channel_id is present and immediately fail the channel
// without trying to persist the `ChannelMonitor`.
check_added_monitors!(nodes[1], 0);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 10_000, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 10_000, 42, None, None).unwrap();
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()));
nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(config), None]);
let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
+ nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None, None).unwrap();
let mut open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
open_channel.max_htlc_value_in_flight_msat = 50_000_000;
open_channel.max_accepted_htlcs = 60;
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None).unwrap();
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_message);
let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None).unwrap();
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_message);
let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None).unwrap();
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_message);
let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None).unwrap();
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_message);
let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());