--- /dev/null
+using org.ldk.impl;
+using org.ldk.enums;
+using org.ldk.util;
+using System;
+
+namespace org { namespace ldk { namespace structs {
+
+/**
+ * A trait to handle Lightning channel key material without concretizing the channel type or
+ * the signature mechanism.
+ */
+public class ChannelSigner : CommonBase {
+ internal readonly bindings.LDKChannelSigner bindings_instance;
+ internal ChannelSigner(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
+ private ChannelSigner(bindings.LDKChannelSigner arg, ChannelPublicKeys pubkeys) : base(bindings.LDKChannelSigner_new(arg, pubkeys == null ? 0 : pubkeys.clone_ptr())) {
+ this.ptrs_to.AddLast(arg);
+ this.bindings_instance = arg;
+ }
+ ~ChannelSigner() {
+ if (ptr != 0) { bindings.ChannelSigner_free(ptr); }
+ }
+
+ public interface ChannelSignerInterface {
+ /**
+ * Gets the per-commitment point for a specific commitment number
+ *
+ * Note that the commitment number starts at `(1 << 48) - 1` and counts backwards.
+ */
+ byte[] get_per_commitment_point(long _idx);
+ /**
+ * Gets the commitment secret for a specific commitment number as part of the revocation process
+ *
+ * An external signer implementation should error here if the commitment was already signed
+ * and should refuse to sign it in the future.
+ *
+ * May be called more than once for the same index.
+ *
+ * Note that the commitment number starts at `(1 << 48) - 1` and counts backwards.
+ */
+ byte[] release_commitment_secret(long _idx);
+ /**
+ * Validate the counterparty's signatures on the holder commitment transaction and HTLCs.
+ *
+ * This is required in order for the signer to make sure that releasing a commitment
+ * secret won't leave us without a broadcastable holder transaction.
+ * Policy checks should be implemented in this function, including checking the amount
+ * sent to us and checking the HTLCs.
+ *
+ * The preimages of outgoing HTLCs that were fulfilled since the last commitment are provided.
+ * A validating signer should ensure that an HTLC output is removed only when the matching
+ * preimage is provided, or when the value to holder is restored.
+ *
+ * Note that all the relevant preimages will be provided, but there may also be additional
+ * irrelevant or duplicate preimages.
+ */
+ Result_NoneNoneZ validate_holder_commitment(HolderCommitmentTransaction _holder_tx, byte[][] _preimages);
+ /**
+ * Returns an arbitrary identifier describing the set of keys which are provided back to you in
+ * some [`SpendableOutputDescriptor`] types. This should be sufficient to identify this
+ * [`EcdsaChannelSigner`] object uniquely and lookup or re-derive its keys.
+ */
+ byte[] channel_keys_id();
+ /**
+ * Set the counterparty static channel data, including basepoints,
+ * `counterparty_selected`/`holder_selected_contest_delay` and funding outpoint.
+ *
+ * This data is static, and will never change for a channel once set. For a given [`ChannelSigner`]
+ * instance, LDK will call this method exactly once - either immediately after construction
+ * (not including if done via [`SignerProvider::read_chan_signer`]) or when the funding
+ * information has been generated.
+ *
+ * channel_parameters.is_populated() MUST be true.
+ */
+ void provide_channel_parameters(ChannelTransactionParameters _channel_parameters);
+ }
+ private class LDKChannelSignerHolder { internal ChannelSigner held; }
+ private class LDKChannelSignerImpl : bindings.LDKChannelSigner {
+ internal LDKChannelSignerImpl(ChannelSignerInterface arg, LDKChannelSignerHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
+ private ChannelSignerInterface arg;
+ private LDKChannelSignerHolder impl_holder;
+ public byte[] get_per_commitment_point(long _idx) {
+ byte[] ret = arg.get_per_commitment_point(_idx);
+ GC.KeepAlive(arg);
+ byte[] result = InternalUtils.check_arr_len(ret, 33);
+ return result;
+ }
+ public byte[] release_commitment_secret(long _idx) {
+ byte[] ret = arg.release_commitment_secret(_idx);
+ GC.KeepAlive(arg);
+ byte[] result = InternalUtils.check_arr_len(ret, 32);
+ return result;
+ }
+ public long validate_holder_commitment(long _holder_tx, byte[][] _preimages) {
+ org.ldk.structs.HolderCommitmentTransaction _holder_tx_hu_conv = null; if (_holder_tx < 0 || _holder_tx > 4096) { _holder_tx_hu_conv = new org.ldk.structs.HolderCommitmentTransaction(null, _holder_tx); }
+ Result_NoneNoneZ ret = arg.validate_holder_commitment(_holder_tx_hu_conv, _preimages);
+ GC.KeepAlive(arg);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ public byte[] channel_keys_id() {
+ byte[] ret = arg.channel_keys_id();
+ GC.KeepAlive(arg);
+ byte[] result = InternalUtils.check_arr_len(ret, 32);
+ return result;
+ }
+ public void provide_channel_parameters(long _channel_parameters) {
+ org.ldk.structs.ChannelTransactionParameters _channel_parameters_hu_conv = null; if (_channel_parameters < 0 || _channel_parameters > 4096) { _channel_parameters_hu_conv = new org.ldk.structs.ChannelTransactionParameters(null, _channel_parameters); }
+ arg.provide_channel_parameters(_channel_parameters_hu_conv);
+ GC.KeepAlive(arg);
+ }
+ }
+ public static ChannelSigner new_impl(ChannelSignerInterface arg, ChannelPublicKeys pubkeys) {
+ LDKChannelSignerHolder impl_holder = new LDKChannelSignerHolder();
+ impl_holder.held = new ChannelSigner(new LDKChannelSignerImpl(arg, impl_holder), pubkeys);
+ return impl_holder.held;
+ }
+ /**
+ * Gets the per-commitment point for a specific commitment number
+ *
+ * Note that the commitment number starts at `(1 << 48) - 1` and counts backwards.
+ */
+ public byte[] get_per_commitment_point(long idx) {
+ byte[] ret = bindings.ChannelSigner_get_per_commitment_point(this.ptr, idx);
+ GC.KeepAlive(this);
+ GC.KeepAlive(idx);
+ return ret;
+ }
+
+ /**
+ * Gets the commitment secret for a specific commitment number as part of the revocation process
+ *
+ * An external signer implementation should error here if the commitment was already signed
+ * and should refuse to sign it in the future.
+ *
+ * May be called more than once for the same index.
+ *
+ * Note that the commitment number starts at `(1 << 48) - 1` and counts backwards.
+ */
+ public byte[] release_commitment_secret(long idx) {
+ byte[] ret = bindings.ChannelSigner_release_commitment_secret(this.ptr, idx);
+ GC.KeepAlive(this);
+ GC.KeepAlive(idx);
+ return ret;
+ }
+
+ /**
+ * Validate the counterparty's signatures on the holder commitment transaction and HTLCs.
+ *
+ * This is required in order for the signer to make sure that releasing a commitment
+ * secret won't leave us without a broadcastable holder transaction.
+ * Policy checks should be implemented in this function, including checking the amount
+ * sent to us and checking the HTLCs.
+ *
+ * The preimages of outgoing HTLCs that were fulfilled since the last commitment are provided.
+ * A validating signer should ensure that an HTLC output is removed only when the matching
+ * preimage is provided, or when the value to holder is restored.
+ *
+ * Note that all the relevant preimages will be provided, but there may also be additional
+ * irrelevant or duplicate preimages.
+ */
+ public Result_NoneNoneZ validate_holder_commitment(org.ldk.structs.HolderCommitmentTransaction holder_tx, byte[][] preimages) {
+ long ret = bindings.ChannelSigner_validate_holder_commitment(this.ptr, holder_tx == null ? 0 : holder_tx.ptr, preimages != null ? InternalUtils.mapArray(preimages, preimages_conv_8 => InternalUtils.check_arr_len(preimages_conv_8, 32)) : null);
+ GC.KeepAlive(this);
+ GC.KeepAlive(holder_tx);
+ GC.KeepAlive(preimages);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.AddLast(holder_tx); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Returns an arbitrary identifier describing the set of keys which are provided back to you in
+ * some [`SpendableOutputDescriptor`] types. This should be sufficient to identify this
+ * [`EcdsaChannelSigner`] object uniquely and lookup or re-derive its keys.
+ */
+ public byte[] channel_keys_id() {
+ byte[] ret = bindings.ChannelSigner_channel_keys_id(this.ptr);
+ GC.KeepAlive(this);
+ return ret;
+ }
+
+ /**
+ * Set the counterparty static channel data, including basepoints,
+ * `counterparty_selected`/`holder_selected_contest_delay` and funding outpoint.
+ *
+ * This data is static, and will never change for a channel once set. For a given [`ChannelSigner`]
+ * instance, LDK will call this method exactly once - either immediately after construction
+ * (not including if done via [`SignerProvider::read_chan_signer`]) or when the funding
+ * information has been generated.
+ *
+ * channel_parameters.is_populated() MUST be true.
+ */
+ public void provide_channel_parameters(org.ldk.structs.ChannelTransactionParameters channel_parameters) {
+ bindings.ChannelSigner_provide_channel_parameters(this.ptr, channel_parameters == null ? 0 : channel_parameters.ptr);
+ GC.KeepAlive(this);
+ GC.KeepAlive(channel_parameters);
+ if (this != null) { this.ptrs_to.AddLast(channel_parameters); };
+ }
+
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ public ChannelPublicKeys get_pubkeys() {
+ long ret = bindings.ChannelSigner_get_pubkeys(this.ptr);
+ GC.KeepAlive(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.ChannelPublicKeys ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.ChannelPublicKeys(null, ret); }
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
+ return ret_hu_conv;
+ }
+
+}
+} } }
projects / ldk-java / blobdiff