Merge pull request #810 from enigbe/2026-02-expose-node-features-api

Expose node-invariant features via NodeStatus

Author: tnull

src/ffi/types.rs

@@ -44,6 +44,7 @@ pub use lightning_liquidity::lsps0::ser::LSPSDateTime;
 pub use lightning_liquidity::lsps1::msgs::{
 	LSPS1ChannelInfo, LSPS1OrderId, LSPS1OrderParams, LSPS1PaymentState,
 };
+use lightning_types::features::NodeFeatures as LdkNodeFeatures;
 pub use lightning_types::payment::{PaymentHash, PaymentPreimage, PaymentSecret};
 pub use lightning_types::string::UntrustedString;
 use vss_client::headers::{
@@ -1519,6 +1520,301 @@ pub enum ClosureReason {
 	},
 }
 
+#[derive(Debug, Clone, PartialEq, Eq, uniffi::Object)]
+#[uniffi::export(Debug, Eq)]
+pub struct NodeFeatures {
+	pub(crate) inner: LdkNodeFeatures,
+}
+
+impl NodeFeatures {
+	/// Constructs node features from big-endian BOLT 9 encoded bytes.
+	#[uniffi::constructor]
+	pub fn from_bytes(bytes: &[u8]) -> Self {
+		Self { inner: LdkNodeFeatures::from_be_bytes(bytes.to_vec()) }
+	}
+
+	/// Returns the BOLT 9 big-endian encoded representation of these features.
+	pub fn to_bytes(&self) -> Vec<u8> {
+		self.inner.encode()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_data_loss_protect`.
+	pub fn supports_data_loss_protect(&self) -> bool {
+		self.inner.supports_data_loss_protect()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_data_loss_protect`.
+	pub fn requires_data_loss_protect(&self) -> bool {
+		self.inner.requires_data_loss_protect()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_upfront_shutdown_script`.
+	pub fn supports_upfront_shutdown_script(&self) -> bool {
+		self.inner.supports_upfront_shutdown_script()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_upfront_shutdown_script`.
+	pub fn requires_upfront_shutdown_script(&self) -> bool {
+		self.inner.requires_upfront_shutdown_script()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `gossip_queries`.
+	pub fn supports_gossip_queries(&self) -> bool {
+		self.inner.supports_gossip_queries()
+	}
+
+	/// Whether this node's `node_announcement` requires `gossip_queries`.
+	pub fn requires_gossip_queries(&self) -> bool {
+		self.inner.requires_gossip_queries()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `var_onion_optin`.
+	pub fn supports_variable_length_onion(&self) -> bool {
+		self.inner.supports_variable_length_onion()
+	}
+
+	/// Whether this node's `node_announcement` requires `var_onion_optin`.
+	pub fn requires_variable_length_onion(&self) -> bool {
+		self.inner.requires_variable_length_onion()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_static_remotekey`.
+	pub fn supports_static_remote_key(&self) -> bool {
+		self.inner.supports_static_remote_key()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_static_remotekey`.
+	pub fn requires_static_remote_key(&self) -> bool {
+		self.inner.requires_static_remote_key()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `payment_secret`.
+	pub fn supports_payment_secret(&self) -> bool {
+		self.inner.supports_payment_secret()
+	}
+
+	/// Whether this node's `node_announcement` requires `payment_secret`.
+	pub fn requires_payment_secret(&self) -> bool {
+		self.inner.requires_payment_secret()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `basic_mpp`.
+	pub fn supports_basic_mpp(&self) -> bool {
+		self.inner.supports_basic_mpp()
+	}
+
+	/// Whether this node's `node_announcement` requires `basic_mpp`.
+	pub fn requires_basic_mpp(&self) -> bool {
+		self.inner.requires_basic_mpp()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_support_large_channel`.
+	pub fn supports_wumbo(&self) -> bool {
+		self.inner.supports_wumbo()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_support_large_channel`.
+	pub fn requires_wumbo(&self) -> bool {
+		self.inner.requires_wumbo()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_anchors_nonzero_fee_htlc_tx`.
+	pub fn supports_anchors_nonzero_fee_htlc_tx(&self) -> bool {
+		self.inner.supports_anchors_nonzero_fee_htlc_tx()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_anchors_nonzero_fee_htlc_tx`.
+	pub fn requires_anchors_nonzero_fee_htlc_tx(&self) -> bool {
+		self.inner.requires_anchors_nonzero_fee_htlc_tx()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_anchors_zero_fee_htlc_tx`.
+	pub fn supports_anchors_zero_fee_htlc_tx(&self) -> bool {
+		self.inner.supports_anchors_zero_fee_htlc_tx()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_anchors_zero_fee_htlc_tx`.
+	pub fn requires_anchors_zero_fee_htlc_tx(&self) -> bool {
+		self.inner.requires_anchors_zero_fee_htlc_tx()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_route_blinding`.
+	pub fn supports_route_blinding(&self) -> bool {
+		self.inner.supports_route_blinding()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_route_blinding`.
+	pub fn requires_route_blinding(&self) -> bool {
+		self.inner.requires_route_blinding()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `opt_shutdown_anysegwit`.
+	pub fn supports_shutdown_anysegwit(&self) -> bool {
+		self.inner.supports_shutdown_anysegwit()
+	}
+
+	/// Whether this node's `node_announcement` requires `opt_shutdown_anysegwit`.
+	pub fn requires_shutdown_anysegwit(&self) -> bool {
+		self.inner.requires_shutdown_anysegwit()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_dual_fund`.
+	pub fn supports_dual_fund(&self) -> bool {
+		self.inner.supports_dual_fund()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_dual_fund`.
+	pub fn requires_dual_fund(&self) -> bool {
+		self.inner.requires_dual_fund()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_taproot`.
+	pub fn supports_taproot(&self) -> bool {
+		self.inner.supports_taproot()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_taproot`.
+	pub fn requires_taproot(&self) -> bool {
+		self.inner.requires_taproot()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_quiesce`.
+	pub fn supports_quiescence(&self) -> bool {
+		self.inner.supports_quiescence()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_quiesce`.
+	pub fn requires_quiescence(&self) -> bool {
+		self.inner.requires_quiescence()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_onion_messages`.
+	pub fn supports_onion_messages(&self) -> bool {
+		self.inner.supports_onion_messages()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_onion_messages`.
+	pub fn requires_onion_messages(&self) -> bool {
+		self.inner.requires_onion_messages()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_provide_storage`.
+	pub fn supports_provide_storage(&self) -> bool {
+		self.inner.supports_provide_storage()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_provide_storage`.
+	pub fn requires_provide_storage(&self) -> bool {
+		self.inner.requires_provide_storage()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_channel_type`.
+	pub fn supports_channel_type(&self) -> bool {
+		self.inner.supports_channel_type()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_channel_type`.
+	pub fn requires_channel_type(&self) -> bool {
+		self.inner.requires_channel_type()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_scid_alias`.
+	pub fn supports_scid_privacy(&self) -> bool {
+		self.inner.supports_scid_privacy()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_scid_alias`.
+	pub fn requires_scid_privacy(&self) -> bool {
+		self.inner.requires_scid_privacy()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_zeroconf`.
+	pub fn supports_zero_conf(&self) -> bool {
+		self.inner.supports_zero_conf()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_zeroconf`.
+	pub fn requires_zero_conf(&self) -> bool {
+		self.inner.requires_zero_conf()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `keysend`.
+	pub fn supports_keysend(&self) -> bool {
+		self.inner.supports_keysend()
+	}
+
+	/// Whether this node's `node_announcement` requires `keysend`.
+	pub fn requires_keysend(&self) -> bool {
+		self.inner.requires_keysend()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_trampoline`.
+	pub fn supports_trampoline_routing(&self) -> bool {
+		self.inner.supports_trampoline_routing()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_trampoline`.
+	pub fn requires_trampoline_routing(&self) -> bool {
+		self.inner.requires_trampoline_routing()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_simple_close`.
+	pub fn supports_simple_close(&self) -> bool {
+		self.inner.supports_simple_close()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_simple_close`.
+	pub fn requires_simple_close(&self) -> bool {
+		self.inner.requires_simple_close()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_splice`.
+	pub fn supports_splicing(&self) -> bool {
+		self.inner.supports_splicing()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_splice`.
+	pub fn requires_splicing(&self) -> bool {
+		self.inner.requires_splicing()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for `option_zero_fee_commitments`.
+	pub fn supports_anchor_zero_fee_commitments(&self) -> bool {
+		self.inner.supports_anchor_zero_fee_commitments()
+	}
+
+	/// Whether this node's `node_announcement` requires `option_zero_fee_commitments`.
+	pub fn requires_anchor_zero_fee_commitments(&self) -> bool {
+		self.inner.requires_anchor_zero_fee_commitments()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for HTLC hold.
+	pub fn supports_htlc_hold(&self) -> bool {
+		self.inner.supports_htlc_hold()
+	}
+
+	/// Whether this node's `node_announcement` requires HTLC hold.
+	pub fn requires_htlc_hold(&self) -> bool {
+		self.inner.requires_htlc_hold()
+	}
+
+	/// Whether this node's `node_announcement` advertises support for DNS resolution.
+	pub fn supports_dns_resolution(&self) -> bool {
+		self.inner.supports_dns_resolution()
+	}
+
+	/// Whether this node's `node_announcement` requires DNS resolution.
+	pub fn requires_dns_resolution(&self) -> bool {
+		self.inner.requires_dns_resolution()
+	}
+}
+
+impl From<LdkNodeFeatures> for NodeFeatures {
+	fn from(features: LdkNodeFeatures) -> Self {
+		Self { inner: features }
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	use std::num::NonZeroU64;