X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Flightning%2Fchain%2Fkeysinterface.rs;fp=lightning-c-bindings%2Fsrc%2Flightning%2Fchain%2Fkeysinterface.rs;h=dae2a63ea8b8b842c37f3ab88613ed70d93482e6;hb=d9866e870bbe080412dc70b1421e28a756e4407e;hp=0000000000000000000000000000000000000000;hpb=05fd5718232e2aa9581a51cdace2c0642ea533a5;p=ldk-c-bindings diff --git a/lightning-c-bindings/src/lightning/chain/keysinterface.rs b/lightning-c-bindings/src/lightning/chain/keysinterface.rs new file mode 100644 index 0000000..dae2a63 --- /dev/null +++ b/lightning-c-bindings/src/lightning/chain/keysinterface.rs @@ -0,0 +1,1481 @@ +// This file is Copyright its original authors, visible in version control +// history and in the source files from which this was generated. +// +// This file is licensed under the license available in the LICENSE or LICENSE.md +// file in the root of this repository or, if no such file exists, the same +// license as that which applies to the original source files from which this +// source was automatically generated. + +//! keysinterface provides keys into rust-lightning and defines some useful enums which describe +//! spendable on-chain outputs which the user owns and is responsible for using just as any other +//! on-chain output which is theirs. + +use std::ffi::c_void; +use bitcoin::hashes::Hash; +use crate::c_types::*; + + +use lightning::chain::keysinterface::DelayedPaymentOutputDescriptor as nativeDelayedPaymentOutputDescriptorImport; +type nativeDelayedPaymentOutputDescriptor = nativeDelayedPaymentOutputDescriptorImport; + +/// Information about a spendable output to a P2WSH script. See +/// SpendableOutputDescriptor::DelayedPaymentOutput for more details on how to spend this. +#[must_use] +#[repr(C)] +pub struct DelayedPaymentOutputDescriptor { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeDelayedPaymentOutputDescriptor, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for DelayedPaymentOutputDescriptor { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeDelayedPaymentOutputDescriptor>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(self.inner) }; + } + } +} +/// Frees any resources used by the DelayedPaymentOutputDescriptor, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_free(this_obj: DelayedPaymentOutputDescriptor) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +extern "C" fn DelayedPaymentOutputDescriptor_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeDelayedPaymentOutputDescriptor); } +} +#[allow(unused)] +/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy +impl DelayedPaymentOutputDescriptor { + pub(crate) fn take_inner(mut self) -> *mut nativeDelayedPaymentOutputDescriptor { + assert!(self.is_owned); + let ret = self.inner; + self.inner = std::ptr::null_mut(); + ret + } +} +/// The outpoint which is spendable +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_get_outpoint(this_ptr: &DelayedPaymentOutputDescriptor) -> crate::lightning::chain::transaction::OutPoint { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.outpoint; + crate::lightning::chain::transaction::OutPoint { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false } +} +/// The outpoint which is spendable +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_outpoint(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::lightning::chain::transaction::OutPoint) { + unsafe { &mut *this_ptr.inner }.outpoint = *unsafe { Box::from_raw(val.take_inner()) }; +} +/// Per commitment point to derive delayed_payment_key by key holder +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_get_per_commitment_point(this_ptr: &DelayedPaymentOutputDescriptor) -> crate::c_types::PublicKey { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.per_commitment_point; + crate::c_types::PublicKey::from_rust(&(*inner_val)) +} +/// Per commitment point to derive delayed_payment_key by key holder +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_per_commitment_point(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::PublicKey) { + unsafe { &mut *this_ptr.inner }.per_commitment_point = val.into_rust(); +} +/// The nSequence value which must be set in the spending input to satisfy the OP_CSV in +/// the witness_script. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_get_to_self_delay(this_ptr: &DelayedPaymentOutputDescriptor) -> u16 { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.to_self_delay; + (*inner_val) +} +/// The nSequence value which must be set in the spending input to satisfy the OP_CSV in +/// the witness_script. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_to_self_delay(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: u16) { + unsafe { &mut *this_ptr.inner }.to_self_delay = val; +} +/// The output which is referenced by the given outpoint +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_output(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::TxOut) { + unsafe { &mut *this_ptr.inner }.output = val.into_rust(); +} +/// The revocation point specific to the commitment transaction which was broadcast. Used to +/// derive the witnessScript for this output. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_get_revocation_pubkey(this_ptr: &DelayedPaymentOutputDescriptor) -> crate::c_types::PublicKey { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_pubkey; + crate::c_types::PublicKey::from_rust(&(*inner_val)) +} +/// The revocation point specific to the commitment transaction which was broadcast. Used to +/// derive the witnessScript for this output. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_revocation_pubkey(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::PublicKey) { + unsafe { &mut *this_ptr.inner }.revocation_pubkey = val.into_rust(); +} +/// Arbitrary identification information returned by a call to +/// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in +/// the channel to spend the output. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_get_channel_keys_id(this_ptr: &DelayedPaymentOutputDescriptor) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_keys_id; + &(*inner_val) +} +/// Arbitrary identification information returned by a call to +/// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in +/// the channel to spend the output. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_channel_keys_id(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::ThirtyTwoBytes) { + unsafe { &mut *this_ptr.inner }.channel_keys_id = val.data; +} +/// The value of the channel which this output originated from, possibly indirectly. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_get_channel_value_satoshis(this_ptr: &DelayedPaymentOutputDescriptor) -> u64 { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_value_satoshis; + (*inner_val) +} +/// The value of the channel which this output originated from, possibly indirectly. +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_set_channel_value_satoshis(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: u64) { + unsafe { &mut *this_ptr.inner }.channel_value_satoshis = val; +} +/// Constructs a new DelayedPaymentOutputDescriptor given each field +#[must_use] +#[no_mangle] +pub extern "C" fn DelayedPaymentOutputDescriptor_new(mut outpoint_arg: crate::lightning::chain::transaction::OutPoint, mut per_commitment_point_arg: crate::c_types::PublicKey, mut to_self_delay_arg: u16, mut output_arg: crate::c_types::TxOut, mut revocation_pubkey_arg: crate::c_types::PublicKey, mut channel_keys_id_arg: crate::c_types::ThirtyTwoBytes, mut channel_value_satoshis_arg: u64) -> DelayedPaymentOutputDescriptor { + DelayedPaymentOutputDescriptor { inner: Box::into_raw(Box::new(nativeDelayedPaymentOutputDescriptor { + outpoint: *unsafe { Box::from_raw(outpoint_arg.take_inner()) }, + per_commitment_point: per_commitment_point_arg.into_rust(), + to_self_delay: to_self_delay_arg, + output: output_arg.into_rust(), + revocation_pubkey: revocation_pubkey_arg.into_rust(), + channel_keys_id: channel_keys_id_arg.data, + channel_value_satoshis: channel_value_satoshis_arg, + })), is_owned: true } +} +impl Clone for DelayedPaymentOutputDescriptor { + fn clone(&self) -> Self { + Self { + inner: if <*mut nativeDelayedPaymentOutputDescriptor>::is_null(self.inner) { std::ptr::null_mut() } else { + Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + is_owned: true, + } + } +} +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn DelayedPaymentOutputDescriptor_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeDelayedPaymentOutputDescriptor)).clone() })) as *mut c_void +} +#[no_mangle] +/// Creates a copy of the DelayedPaymentOutputDescriptor +pub extern "C" fn DelayedPaymentOutputDescriptor_clone(orig: &DelayedPaymentOutputDescriptor) -> DelayedPaymentOutputDescriptor { + orig.clone() +} + +use lightning::chain::keysinterface::StaticPaymentOutputDescriptor as nativeStaticPaymentOutputDescriptorImport; +type nativeStaticPaymentOutputDescriptor = nativeStaticPaymentOutputDescriptorImport; + +/// Information about a spendable output to our \"payment key\". See +/// SpendableOutputDescriptor::StaticPaymentOutput for more details on how to spend this. +#[must_use] +#[repr(C)] +pub struct StaticPaymentOutputDescriptor { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeStaticPaymentOutputDescriptor, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for StaticPaymentOutputDescriptor { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeStaticPaymentOutputDescriptor>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(self.inner) }; + } + } +} +/// Frees any resources used by the StaticPaymentOutputDescriptor, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_free(this_obj: StaticPaymentOutputDescriptor) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +extern "C" fn StaticPaymentOutputDescriptor_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeStaticPaymentOutputDescriptor); } +} +#[allow(unused)] +/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy +impl StaticPaymentOutputDescriptor { + pub(crate) fn take_inner(mut self) -> *mut nativeStaticPaymentOutputDescriptor { + assert!(self.is_owned); + let ret = self.inner; + self.inner = std::ptr::null_mut(); + ret + } +} +/// The outpoint which is spendable +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_get_outpoint(this_ptr: &StaticPaymentOutputDescriptor) -> crate::lightning::chain::transaction::OutPoint { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.outpoint; + crate::lightning::chain::transaction::OutPoint { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false } +} +/// The outpoint which is spendable +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_set_outpoint(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: crate::lightning::chain::transaction::OutPoint) { + unsafe { &mut *this_ptr.inner }.outpoint = *unsafe { Box::from_raw(val.take_inner()) }; +} +/// The output which is referenced by the given outpoint +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_set_output(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: crate::c_types::TxOut) { + unsafe { &mut *this_ptr.inner }.output = val.into_rust(); +} +/// Arbitrary identification information returned by a call to +/// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in +/// the channel to spend the output. +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_get_channel_keys_id(this_ptr: &StaticPaymentOutputDescriptor) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_keys_id; + &(*inner_val) +} +/// Arbitrary identification information returned by a call to +/// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in +/// the channel to spend the output. +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_set_channel_keys_id(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: crate::c_types::ThirtyTwoBytes) { + unsafe { &mut *this_ptr.inner }.channel_keys_id = val.data; +} +/// The value of the channel which this transactions spends. +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_get_channel_value_satoshis(this_ptr: &StaticPaymentOutputDescriptor) -> u64 { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_value_satoshis; + (*inner_val) +} +/// The value of the channel which this transactions spends. +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_set_channel_value_satoshis(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: u64) { + unsafe { &mut *this_ptr.inner }.channel_value_satoshis = val; +} +/// Constructs a new StaticPaymentOutputDescriptor given each field +#[must_use] +#[no_mangle] +pub extern "C" fn StaticPaymentOutputDescriptor_new(mut outpoint_arg: crate::lightning::chain::transaction::OutPoint, mut output_arg: crate::c_types::TxOut, mut channel_keys_id_arg: crate::c_types::ThirtyTwoBytes, mut channel_value_satoshis_arg: u64) -> StaticPaymentOutputDescriptor { + StaticPaymentOutputDescriptor { inner: Box::into_raw(Box::new(nativeStaticPaymentOutputDescriptor { + outpoint: *unsafe { Box::from_raw(outpoint_arg.take_inner()) }, + output: output_arg.into_rust(), + channel_keys_id: channel_keys_id_arg.data, + channel_value_satoshis: channel_value_satoshis_arg, + })), is_owned: true } +} +impl Clone for StaticPaymentOutputDescriptor { + fn clone(&self) -> Self { + Self { + inner: if <*mut nativeStaticPaymentOutputDescriptor>::is_null(self.inner) { std::ptr::null_mut() } else { + Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + is_owned: true, + } + } +} +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn StaticPaymentOutputDescriptor_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeStaticPaymentOutputDescriptor)).clone() })) as *mut c_void +} +#[no_mangle] +/// Creates a copy of the StaticPaymentOutputDescriptor +pub extern "C" fn StaticPaymentOutputDescriptor_clone(orig: &StaticPaymentOutputDescriptor) -> StaticPaymentOutputDescriptor { + orig.clone() +} +/// When on-chain outputs are created by rust-lightning (which our counterparty is not able to +/// claim at any point in the future) an event is generated which you must track and be able to +/// spend on-chain. The information needed to do this is provided in this enum, including the +/// outpoint describing which txid and output index is available, the full output which exists at +/// that txid/index, and any keys or other information required to sign. +#[must_use] +#[derive(Clone)] +#[repr(C)] +pub enum SpendableOutputDescriptor { + /// An output to a script which was provided via KeysInterface directly, either from + /// `get_destination_script()` or `get_shutdown_pubkey()`, thus you should already know how to + /// spend it. No secret keys are provided as rust-lightning was never given any key. + /// These may include outputs from a transaction punishing our counterparty or claiming an HTLC + /// on-chain using the payment preimage or after it has timed out. + StaticOutput { + /// The outpoint which is spendable + outpoint: crate::lightning::chain::transaction::OutPoint, + /// The output which is referenced by the given outpoint. + output: crate::c_types::TxOut, + }, + /// An output to a P2WSH script which can be spent with a single signature after a CSV delay. + /// + /// The witness in the spending input should be: + /// (MINIMALIF standard rule) + /// + /// Note that the nSequence field in the spending input must be set to to_self_delay + /// (which means the transaction is not broadcastable until at least to_self_delay + /// blocks after the outpoint confirms). + /// + /// These are generally the result of a \"revocable\" output to us, spendable only by us unless + /// it is an output from an old state which we broadcast (which should never happen). + /// + /// To derive the delayed_payment key which is used to sign for this input, you must pass the + /// holder delayed_payment_base_key (ie the private key which corresponds to the pubkey in + /// Sign::pubkeys().delayed_payment_basepoint) and the provided per_commitment_point to + /// chan_utils::derive_private_key. The public key can be generated without the secret key + /// using chan_utils::derive_public_key and only the delayed_payment_basepoint which appears in + /// Sign::pubkeys(). + /// + /// To derive the revocation_pubkey provided here (which is used in the witness + /// script generation), you must pass the counterparty revocation_basepoint (which appears in the + /// call to Sign::ready_channel) and the provided per_commitment point + /// to chan_utils::derive_public_revocation_key. + /// + /// The witness script which is hashed and included in the output script_pubkey may be + /// regenerated by passing the revocation_pubkey (derived as above), our delayed_payment pubkey + /// (derived as above), and the to_self_delay contained here to + /// chan_utils::get_revokeable_redeemscript. + DelayedPaymentOutput(crate::lightning::chain::keysinterface::DelayedPaymentOutputDescriptor), + /// An output to a P2WPKH, spendable exclusively by our payment key (ie the private key which + /// corresponds to the public key in Sign::pubkeys().payment_point). + /// The witness in the spending input, is, thus, simply: + /// + /// + /// These are generally the result of our counterparty having broadcast the current state, + /// allowing us to claim the non-HTLC-encumbered outputs immediately. + StaticPaymentOutput(crate::lightning::chain::keysinterface::StaticPaymentOutputDescriptor), +} +use lightning::chain::keysinterface::SpendableOutputDescriptor as nativeSpendableOutputDescriptor; +impl SpendableOutputDescriptor { + #[allow(unused)] + pub(crate) fn to_native(&self) -> nativeSpendableOutputDescriptor { + match self { + SpendableOutputDescriptor::StaticOutput {ref outpoint, ref output, } => { + let mut outpoint_nonref = (*outpoint).clone(); + let mut output_nonref = (*output).clone(); + nativeSpendableOutputDescriptor::StaticOutput { + outpoint: *unsafe { Box::from_raw(outpoint_nonref.take_inner()) }, + output: output_nonref.into_rust(), + } + }, + SpendableOutputDescriptor::DelayedPaymentOutput (ref a, ) => { + let mut a_nonref = (*a).clone(); + nativeSpendableOutputDescriptor::DelayedPaymentOutput ( + *unsafe { Box::from_raw(a_nonref.take_inner()) }, + ) + }, + SpendableOutputDescriptor::StaticPaymentOutput (ref a, ) => { + let mut a_nonref = (*a).clone(); + nativeSpendableOutputDescriptor::StaticPaymentOutput ( + *unsafe { Box::from_raw(a_nonref.take_inner()) }, + ) + }, + } + } + #[allow(unused)] + pub(crate) fn into_native(self) -> nativeSpendableOutputDescriptor { + match self { + SpendableOutputDescriptor::StaticOutput {mut outpoint, mut output, } => { + nativeSpendableOutputDescriptor::StaticOutput { + outpoint: *unsafe { Box::from_raw(outpoint.take_inner()) }, + output: output.into_rust(), + } + }, + SpendableOutputDescriptor::DelayedPaymentOutput (mut a, ) => { + nativeSpendableOutputDescriptor::DelayedPaymentOutput ( + *unsafe { Box::from_raw(a.take_inner()) }, + ) + }, + SpendableOutputDescriptor::StaticPaymentOutput (mut a, ) => { + nativeSpendableOutputDescriptor::StaticPaymentOutput ( + *unsafe { Box::from_raw(a.take_inner()) }, + ) + }, + } + } + #[allow(unused)] + pub(crate) fn from_native(native: &nativeSpendableOutputDescriptor) -> Self { + match native { + nativeSpendableOutputDescriptor::StaticOutput {ref outpoint, ref output, } => { + let mut outpoint_nonref = (*outpoint).clone(); + let mut output_nonref = (*output).clone(); + SpendableOutputDescriptor::StaticOutput { + outpoint: crate::lightning::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(outpoint_nonref)), is_owned: true }, + output: crate::c_types::TxOut::from_rust(output_nonref), + } + }, + nativeSpendableOutputDescriptor::DelayedPaymentOutput (ref a, ) => { + let mut a_nonref = (*a).clone(); + SpendableOutputDescriptor::DelayedPaymentOutput ( + crate::lightning::chain::keysinterface::DelayedPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a_nonref)), is_owned: true }, + ) + }, + nativeSpendableOutputDescriptor::StaticPaymentOutput (ref a, ) => { + let mut a_nonref = (*a).clone(); + SpendableOutputDescriptor::StaticPaymentOutput ( + crate::lightning::chain::keysinterface::StaticPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a_nonref)), is_owned: true }, + ) + }, + } + } + #[allow(unused)] + pub(crate) fn native_into(native: nativeSpendableOutputDescriptor) -> Self { + match native { + nativeSpendableOutputDescriptor::StaticOutput {mut outpoint, mut output, } => { + SpendableOutputDescriptor::StaticOutput { + outpoint: crate::lightning::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(outpoint)), is_owned: true }, + output: crate::c_types::TxOut::from_rust(output), + } + }, + nativeSpendableOutputDescriptor::DelayedPaymentOutput (mut a, ) => { + SpendableOutputDescriptor::DelayedPaymentOutput ( + crate::lightning::chain::keysinterface::DelayedPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a)), is_owned: true }, + ) + }, + nativeSpendableOutputDescriptor::StaticPaymentOutput (mut a, ) => { + SpendableOutputDescriptor::StaticPaymentOutput ( + crate::lightning::chain::keysinterface::StaticPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a)), is_owned: true }, + ) + }, + } + } +} +/// Frees any resources used by the SpendableOutputDescriptor +#[no_mangle] +pub extern "C" fn SpendableOutputDescriptor_free(this_ptr: SpendableOutputDescriptor) { } +/// Creates a copy of the SpendableOutputDescriptor +#[no_mangle] +pub extern "C" fn SpendableOutputDescriptor_clone(orig: &SpendableOutputDescriptor) -> SpendableOutputDescriptor { + orig.clone() +} +#[no_mangle] +/// Serialize the SpendableOutputDescriptor object into a byte array which can be read by SpendableOutputDescriptor_read +pub extern "C" fn SpendableOutputDescriptor_write(obj: &SpendableOutputDescriptor) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(&unsafe { &*obj }.to_native()) +} +#[no_mangle] +/// Read a SpendableOutputDescriptor from a byte array, created by SpendableOutputDescriptor_write +pub extern "C" fn SpendableOutputDescriptor_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_SpendableOutputDescriptorDecodeErrorZ { + let res = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::chain::keysinterface::SpendableOutputDescriptor::native_into(o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + local_res +} +/// A trait to sign lightning channel transactions as described in BOLT 3. +/// +/// Signing services could be implemented on a hardware wallet. In this case, +/// the current Sign would be a front-end on top of a communication +/// channel connected to your secure device and lightning key material wouldn't +/// reside on a hot server. Nevertheless, a this deployment would still need +/// to trust the ChannelManager to avoid loss of funds as this latest component +/// could ask to sign commitment transaction with HTLCs paying to attacker pubkeys. +/// +/// A more secure iteration would be to use hashlock (or payment points) to pair +/// invoice/incoming HTLCs with outgoing HTLCs to implement a no-trust-ChannelManager +/// at the price of more state and computation on the hardware wallet side. In the future, +/// we are looking forward to design such interface. +/// +/// In any case, ChannelMonitor or fallback watchtowers are always going to be trusted +/// to act, as liveness and breach reply correctness are always going to be hard requirements +/// of LN security model, orthogonal of key management issues. +#[repr(C)] +pub struct BaseSign { + /// An opaque pointer which is passed to your function implementations as an argument. + /// This has no meaning in the LDK, and can be NULL or any other value. + pub this_arg: *mut c_void, + /// Gets the per-commitment point for a specific commitment number + /// + /// Note that the commitment number starts at (1 << 48) - 1 and counts backwards. + #[must_use] + pub get_per_commitment_point: extern "C" fn (this_arg: *const c_void, idx: u64) -> crate::c_types::PublicKey, + /// 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. + #[must_use] + pub release_commitment_secret: extern "C" fn (this_arg: *const c_void, idx: u64) -> crate::c_types::ThirtyTwoBytes, + /// Gets the holder's channel public keys and basepoints + pub pubkeys: crate::lightning::ln::chan_utils::ChannelPublicKeys, + /// Fill in the pubkeys field as a reference to it will be given to Rust after this returns + /// Note that this takes a pointer to this object, not the this_ptr like other methods do + /// This function pointer may be NULL if pubkeys is filled in when this object is created and never needs updating. + pub set_pubkeys: Option, + /// Gets 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 + /// Sign object uniquely and lookup or re-derive its keys. + #[must_use] + pub channel_keys_id: extern "C" fn (this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes, + /// Create a signature for a counterparty's commitment transaction and associated HTLC transactions. + /// + /// Note that if signing fails or is rejected, the channel will be force-closed. + #[must_use] + pub sign_counterparty_commitment: extern "C" fn (this_arg: *const c_void, commitment_tx: &crate::lightning::ln::chan_utils::CommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ, + /// Create a signatures for a holder's commitment transaction and its claiming HTLC transactions. + /// This will only ever be called with a non-revoked commitment_tx. This will be called with the + /// latest commitment_tx when we initiate a force-close. + /// This will be called with the previous latest, just to get claiming HTLC signatures, if we are + /// reacting to a ChannelMonitor replica that decided to broadcast before it had been updated to + /// the latest. + /// This may be called multiple times for the same transaction. + /// + /// An external signer implementation should check that the commitment has not been revoked. + /// + /// May return Err if key derivation fails. Callers, such as ChannelMonitor, will panic in such a case. + #[must_use] + pub sign_holder_commitment_and_htlcs: extern "C" fn (this_arg: *const c_void, commitment_tx: &crate::lightning::ln::chan_utils::HolderCommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ, + /// Create a signature for the given input in a transaction spending an HTLC or commitment + /// transaction output when our counterparty broadcasts an old state. + /// + /// A justice transaction may claim multiples outputs at the same time if timelocks are + /// similar, but only a signature for the input at index `input` should be signed for here. + /// It may be called multiples time for same output(s) if a fee-bump is needed with regards + /// to an upcoming timelock expiration. + /// + /// Amount is value of the output spent by this input, committed to in the BIP 143 signature. + /// + /// per_commitment_key is revocation secret which was provided by our counterparty when they + /// revoked the state which they eventually broadcast. It's not a _holder_ secret key and does + /// not allow the spending of any funds by itself (you need our holder revocation_secret to do + /// so). + /// + /// htlc holds HTLC elements (hash, timelock) if the output being spent is a HTLC output, thus + /// changing the format of the witness script (which is committed to in the BIP 143 + /// signatures). + #[must_use] + pub sign_justice_transaction: extern "C" fn (this_arg: *const c_void, justice_tx: crate::c_types::Transaction, input: usize, amount: u64, per_commitment_key: *const [u8; 32], htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ, + /// Create a signature for a claiming transaction for a HTLC output on a counterparty's commitment + /// transaction, either offered or received. + /// + /// Such a transaction may claim multiples offered outputs at same time if we know the + /// preimage for each when we create it, but only the input at index `input` should be + /// signed for here. It may be called multiple times for same output(s) if a fee-bump is + /// needed with regards to an upcoming timelock expiration. + /// + /// Witness_script is either a offered or received script as defined in BOLT3 for HTLC + /// outputs. + /// + /// Amount is value of the output spent by this input, committed to in the BIP 143 signature. + /// + /// Per_commitment_point is the dynamic point corresponding to the channel state + /// detected onchain. It has been generated by our counterparty and is used to derive + /// channel state keys, which are then included in the witness script and committed to in the + /// BIP 143 signature. + #[must_use] + pub sign_counterparty_htlc_transaction: extern "C" fn (this_arg: *const c_void, htlc_tx: crate::c_types::Transaction, input: usize, amount: u64, per_commitment_point: crate::c_types::PublicKey, htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ, + /// Create a signature for a (proposed) closing transaction. + /// + /// Note that, due to rounding, there may be one \"missing\" satoshi, and either party may have + /// chosen to forgo their output as dust. + #[must_use] + pub sign_closing_transaction: extern "C" fn (this_arg: *const c_void, closing_tx: crate::c_types::Transaction) -> crate::c_types::derived::CResult_SignatureNoneZ, + /// Signs a channel announcement message with our funding key, proving it comes from one + /// of the channel participants. + /// + /// Note that if this fails or is rejected, the channel will not be publicly announced and + /// our counterparty may (though likely will not) close the channel on us for violating the + /// protocol. + #[must_use] + pub sign_channel_announcement: extern "C" fn (this_arg: *const c_void, msg: &crate::lightning::ln::msgs::UnsignedChannelAnnouncement) -> crate::c_types::derived::CResult_SignatureNoneZ, + /// Set the counterparty static channel data, including basepoints, + /// counterparty_selected/holder_selected_contest_delay and funding outpoint. + /// This is done as soon as the funding outpoint is known. Since these are static channel data, + /// they MUST NOT be allowed to change to different values once set. + /// + /// channel_parameters.is_populated() MUST be true. + /// + /// We bind holder_selected_contest_delay late here for API convenience. + /// + /// Will be called before any signatures are applied. + pub ready_channel: extern "C" fn (this_arg: *mut c_void, channel_parameters: &crate::lightning::ln::chan_utils::ChannelTransactionParameters), + /// 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. + pub free: Option, +} +unsafe impl Send for BaseSign {} + +use lightning::chain::keysinterface::BaseSign as rustBaseSign; +impl rustBaseSign for BaseSign { + fn get_per_commitment_point(&self, idx: u64, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> bitcoin::secp256k1::key::PublicKey { + let mut ret = (self.get_per_commitment_point)(self.this_arg, idx); + ret.into_rust() + } + fn release_commitment_secret(&self, idx: u64) -> [u8; 32] { + let mut ret = (self.release_commitment_secret)(self.this_arg, idx); + ret.data + } + fn pubkeys(&self) -> &lightning::ln::chan_utils::ChannelPublicKeys { + if let Some(f) = self.set_pubkeys { + (f)(&self); + } + unsafe { &*self.pubkeys.inner } + } + fn channel_keys_id(&self) -> [u8; 32] { + let mut ret = (self.channel_keys_id)(self.this_arg); + ret.data + } + fn sign_counterparty_commitment(&self, commitment_tx: &lightning::ln::chan_utils::CommitmentTransaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result<(bitcoin::secp256k1::Signature, Vec), ()> { + let mut ret = (self.sign_counterparty_commitment)(self.this_arg, &crate::lightning::ln::chan_utils::CommitmentTransaction { inner: unsafe { (commitment_tx as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).to_rust(); let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.into_rust().drain(..) { local_orig_ret_0_1.push( { item.into_rust() }); }; let mut local_ret_0 = (orig_ret_0_0.into_rust(), local_orig_ret_0_1); local_ret_0 }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_holder_commitment_and_htlcs(&self, commitment_tx: &lightning::ln::chan_utils::HolderCommitmentTransaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result<(bitcoin::secp256k1::Signature, Vec), ()> { + let mut ret = (self.sign_holder_commitment_and_htlcs)(self.this_arg, &crate::lightning::ln::chan_utils::HolderCommitmentTransaction { inner: unsafe { (commitment_tx as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).to_rust(); let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.into_rust().drain(..) { local_orig_ret_0_1.push( { item.into_rust() }); }; let mut local_ret_0 = (orig_ret_0_0.into_rust(), local_orig_ret_0_1); local_ret_0 }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_justice_transaction(&self, justice_tx: &bitcoin::blockdata::transaction::Transaction, input: usize, amount: u64, per_commitment_key: &bitcoin::secp256k1::key::SecretKey, htlc: &Option, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut local_justice_tx = ::bitcoin::consensus::encode::serialize(justice_tx); + let mut local_htlc = &crate::lightning::ln::chan_utils::HTLCOutputInCommitment { inner: unsafe { (if htlc.is_none() { std::ptr::null() } else { { (htlc.as_ref().unwrap()) } } as *const _) as *mut _ }, is_owned: false }; + let mut ret = (self.sign_justice_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_justice_tx), input, amount, per_commitment_key.as_ref(), local_htlc); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_counterparty_htlc_transaction(&self, htlc_tx: &bitcoin::blockdata::transaction::Transaction, input: usize, amount: u64, per_commitment_point: &bitcoin::secp256k1::key::PublicKey, htlc: &lightning::ln::chan_utils::HTLCOutputInCommitment, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut local_htlc_tx = ::bitcoin::consensus::encode::serialize(htlc_tx); + let mut ret = (self.sign_counterparty_htlc_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_htlc_tx), input, amount, crate::c_types::PublicKey::from_rust(&per_commitment_point), &crate::lightning::ln::chan_utils::HTLCOutputInCommitment { inner: unsafe { (htlc as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_closing_transaction(&self, closing_tx: &bitcoin::blockdata::transaction::Transaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut local_closing_tx = ::bitcoin::consensus::encode::serialize(closing_tx); + let mut ret = (self.sign_closing_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_closing_tx)); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_channel_announcement(&self, msg: &lightning::ln::msgs::UnsignedChannelAnnouncement, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut ret = (self.sign_channel_announcement)(self.this_arg, &crate::lightning::ln::msgs::UnsignedChannelAnnouncement { inner: unsafe { (msg as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn ready_channel(&mut self, channel_parameters: &lightning::ln::chan_utils::ChannelTransactionParameters) { + (self.ready_channel)(self.this_arg, &crate::lightning::ln::chan_utils::ChannelTransactionParameters { inner: unsafe { (channel_parameters as *const _) as *mut _ }, is_owned: false }) + } +} + +// We're essentially a pointer already, or at least a set of pointers, so allow us to be used +// directly as a Deref trait in higher-level structs: +impl std::ops::Deref for BaseSign { + type Target = Self; + fn deref(&self) -> &Self { + self + } +} +/// Calls the free function if one is set +#[no_mangle] +pub extern "C" fn BaseSign_free(this_ptr: BaseSign) { } +impl Drop for BaseSign { + fn drop(&mut self) { + if let Some(f) = self.free { + f(self.this_arg); + } + } +} +/// A cloneable signer. +/// +/// Although we require signers to be cloneable, it may be useful for developers to be able to use +/// signers in an un-sized way, for example as `dyn BaseSign`. Therefore we separate the Clone trait, +/// which implies Sized, into this derived trait. +#[repr(C)] +pub struct Sign { + /// An opaque pointer which is passed to your function implementations as an argument. + /// This has no meaning in the LDK, and can be NULL or any other value. + pub this_arg: *mut c_void, + /// Implementation of BaseSign for this object. + pub BaseSign: crate::lightning::chain::keysinterface::BaseSign, + /// Creates a copy of the BaseSign, for a copy of this Sign. + /// Because BaseSign doesn't natively support copying itself, you have to provide a full copy implementation here. + pub BaseSign_clone: extern "C" fn (orig_BaseSign: &BaseSign) -> BaseSign, + /// Serialize the object into a byte array + pub write: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z, + /// Creates a copy of the object pointed to by this_arg, for a copy of this Sign. + /// Note that the ultimate copy of the Sign will have all function pointers the same as the original. + /// May be NULL if no action needs to be taken, the this_arg pointer will be copied into the new Sign. + pub clone: Option *mut c_void>, + /// 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. + pub free: Option, +} +impl lightning::chain::keysinterface::BaseSign for Sign { + fn get_per_commitment_point(&self, idx: u64, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> bitcoin::secp256k1::key::PublicKey { + let mut ret = (self.BaseSign.get_per_commitment_point)(self.this_arg, idx); + ret.into_rust() + } + fn release_commitment_secret(&self, idx: u64) -> [u8; 32] { + let mut ret = (self.BaseSign.release_commitment_secret)(self.this_arg, idx); + ret.data + } + fn pubkeys(&self) -> &lightning::ln::chan_utils::ChannelPublicKeys { + if let Some(f) = self.BaseSign.set_pubkeys { + (f)(&self.BaseSign); + } + unsafe { &*self.BaseSign.pubkeys.inner } + } + fn channel_keys_id(&self) -> [u8; 32] { + let mut ret = (self.BaseSign.channel_keys_id)(self.this_arg); + ret.data + } + fn sign_counterparty_commitment(&self, commitment_tx: &lightning::ln::chan_utils::CommitmentTransaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result<(bitcoin::secp256k1::Signature, Vec), ()> { + let mut ret = (self.BaseSign.sign_counterparty_commitment)(self.this_arg, &crate::lightning::ln::chan_utils::CommitmentTransaction { inner: unsafe { (commitment_tx as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).to_rust(); let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.into_rust().drain(..) { local_orig_ret_0_1.push( { item.into_rust() }); }; let mut local_ret_0 = (orig_ret_0_0.into_rust(), local_orig_ret_0_1); local_ret_0 }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_holder_commitment_and_htlcs(&self, commitment_tx: &lightning::ln::chan_utils::HolderCommitmentTransaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result<(bitcoin::secp256k1::Signature, Vec), ()> { + let mut ret = (self.BaseSign.sign_holder_commitment_and_htlcs)(self.this_arg, &crate::lightning::ln::chan_utils::HolderCommitmentTransaction { inner: unsafe { (commitment_tx as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).to_rust(); let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.into_rust().drain(..) { local_orig_ret_0_1.push( { item.into_rust() }); }; let mut local_ret_0 = (orig_ret_0_0.into_rust(), local_orig_ret_0_1); local_ret_0 }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_justice_transaction(&self, justice_tx: &bitcoin::blockdata::transaction::Transaction, input: usize, amount: u64, per_commitment_key: &bitcoin::secp256k1::key::SecretKey, htlc: &Option, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut local_justice_tx = ::bitcoin::consensus::encode::serialize(justice_tx); + let mut local_htlc = &crate::lightning::ln::chan_utils::HTLCOutputInCommitment { inner: unsafe { (if htlc.is_none() { std::ptr::null() } else { { (htlc.as_ref().unwrap()) } } as *const _) as *mut _ }, is_owned: false }; + let mut ret = (self.BaseSign.sign_justice_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_justice_tx), input, amount, per_commitment_key.as_ref(), local_htlc); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_counterparty_htlc_transaction(&self, htlc_tx: &bitcoin::blockdata::transaction::Transaction, input: usize, amount: u64, per_commitment_point: &bitcoin::secp256k1::key::PublicKey, htlc: &lightning::ln::chan_utils::HTLCOutputInCommitment, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut local_htlc_tx = ::bitcoin::consensus::encode::serialize(htlc_tx); + let mut ret = (self.BaseSign.sign_counterparty_htlc_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_htlc_tx), input, amount, crate::c_types::PublicKey::from_rust(&per_commitment_point), &crate::lightning::ln::chan_utils::HTLCOutputInCommitment { inner: unsafe { (htlc as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_closing_transaction(&self, closing_tx: &bitcoin::blockdata::transaction::Transaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut local_closing_tx = ::bitcoin::consensus::encode::serialize(closing_tx); + let mut ret = (self.BaseSign.sign_closing_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_closing_tx)); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn sign_channel_announcement(&self, msg: &lightning::ln::msgs::UnsignedChannelAnnouncement, _secp_ctx: &bitcoin::secp256k1::Secp256k1) -> Result { + let mut ret = (self.BaseSign.sign_channel_announcement)(self.this_arg, &crate::lightning::ln::msgs::UnsignedChannelAnnouncement { inner: unsafe { (msg as *const _) as *mut _ }, is_owned: false }); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })}; + local_ret + } + fn ready_channel(&mut self, channel_parameters: &lightning::ln::chan_utils::ChannelTransactionParameters) { + (self.BaseSign.ready_channel)(self.this_arg, &crate::lightning::ln::chan_utils::ChannelTransactionParameters { inner: unsafe { (channel_parameters as *const _) as *mut _ }, is_owned: false }) + } +} +unsafe impl Send for Sign {} +impl lightning::util::ser::Writeable for Sign { + fn write(&self, w: &mut W) -> Result<(), ::std::io::Error> { + let vec = (self.write)(self.this_arg); + w.write_all(vec.as_slice()) + } +} +#[no_mangle] +/// Creates a copy of a Sign +pub extern "C" fn Sign_clone(orig: &Sign) -> Sign { + Sign { + this_arg: if let Some(f) = orig.clone { (f)(orig.this_arg) } else { orig.this_arg }, + BaseSign: (orig.BaseSign_clone)(&orig.BaseSign), + BaseSign_clone: orig.BaseSign_clone, + write: Clone::clone(&orig.write), + clone: Clone::clone(&orig.clone), + free: Clone::clone(&orig.free), + } +} +impl Clone for Sign { + fn clone(&self) -> Self { + Sign_clone(self) + } +} + +use lightning::chain::keysinterface::Sign as rustSign; +impl rustSign for Sign { +} + +// We're essentially a pointer already, or at least a set of pointers, so allow us to be used +// directly as a Deref trait in higher-level structs: +impl std::ops::Deref for Sign { + type Target = Self; + fn deref(&self) -> &Self { + self + } +} +/// Calls the free function if one is set +#[no_mangle] +pub extern "C" fn Sign_free(this_ptr: Sign) { } +impl Drop for Sign { + fn drop(&mut self) { + if let Some(f) = self.free { + f(self.this_arg); + } + } +} +/// A trait to describe an object which can get user secrets and key material. +#[repr(C)] +pub struct KeysInterface { + /// An opaque pointer which is passed to your function implementations as an argument. + /// This has no meaning in the LDK, and can be NULL or any other value. + pub this_arg: *mut c_void, + /// Get node secret key (aka node_id or network_key). + /// + /// This method must return the same value each time it is called. + #[must_use] + pub get_node_secret: extern "C" fn (this_arg: *const c_void) -> crate::c_types::SecretKey, + /// Get a script pubkey which we send funds to when claiming on-chain contestable outputs. + /// + /// This method should return a different value each time it is called, to avoid linking + /// on-chain funds across channels as controlled to the same user. + #[must_use] + pub get_destination_script: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z, + /// Get a public key which we will send funds to (in the form of a P2WPKH output) when closing + /// a channel. + /// + /// This method should return a different value each time it is called, to avoid linking + /// on-chain funds across channels as controlled to the same user. + #[must_use] + pub get_shutdown_pubkey: extern "C" fn (this_arg: *const c_void) -> crate::c_types::PublicKey, + /// Get a new set of Sign for per-channel secrets. These MUST be unique even if you + /// restarted with some stale data! + /// + /// This method must return a different value each time it is called. + #[must_use] + pub get_channel_signer: extern "C" fn (this_arg: *const c_void, inbound: bool, channel_value_satoshis: u64) -> crate::lightning::chain::keysinterface::Sign, + /// Gets a unique, cryptographically-secure, random 32 byte value. This is used for encrypting + /// onion packets and for temporary channel IDs. There is no requirement that these be + /// persisted anywhere, though they must be unique across restarts. + /// + /// This method must return a different value each time it is called. + #[must_use] + pub get_secure_random_bytes: extern "C" fn (this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes, + /// Reads a `Signer` for this `KeysInterface` from the given input stream. + /// This is only called during deserialization of other objects which contain + /// `Sign`-implementing objects (ie `ChannelMonitor`s and `ChannelManager`s). + /// The bytes are exactly those which `::write()` writes, and + /// contain no versioning scheme. You may wish to include your own version prefix and ensure + /// you've read all of the provided bytes to ensure no corruption occurred. + #[must_use] + pub read_chan_signer: extern "C" fn (this_arg: *const c_void, reader: crate::c_types::u8slice) -> crate::c_types::derived::CResult_SignDecodeErrorZ, + /// 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. + pub free: Option, +} +unsafe impl Send for KeysInterface {} +unsafe impl Sync for KeysInterface {} + +use lightning::chain::keysinterface::KeysInterface as rustKeysInterface; +impl rustKeysInterface for KeysInterface { + type Signer = crate::lightning::chain::keysinterface::Sign; + fn get_node_secret(&self) -> bitcoin::secp256k1::key::SecretKey { + let mut ret = (self.get_node_secret)(self.this_arg); + ret.into_rust() + } + fn get_destination_script(&self) -> bitcoin::blockdata::script::Script { + let mut ret = (self.get_destination_script)(self.this_arg); + ::bitcoin::blockdata::script::Script::from(ret.into_rust()) + } + fn get_shutdown_pubkey(&self) -> bitcoin::secp256k1::key::PublicKey { + let mut ret = (self.get_shutdown_pubkey)(self.this_arg); + ret.into_rust() + } + fn get_channel_signer(&self, inbound: bool, channel_value_satoshis: u64) -> crate::lightning::chain::keysinterface::Sign { + let mut ret = (self.get_channel_signer)(self.this_arg, inbound, channel_value_satoshis); + ret + } + fn get_secure_random_bytes(&self) -> [u8; 32] { + let mut ret = (self.get_secure_random_bytes)(self.this_arg); + ret.data + } + fn read_chan_signer(&self, reader: &[u8]) -> Result { + let mut local_reader = crate::c_types::u8slice::from_slice(reader); + let mut ret = (self.read_chan_signer)(self.this_arg, local_reader); + let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }) }), false => Err( { *unsafe { Box::from_raw((*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).take_inner()) } })}; + local_ret + } +} + +// We're essentially a pointer already, or at least a set of pointers, so allow us to be used +// directly as a Deref trait in higher-level structs: +impl std::ops::Deref for KeysInterface { + type Target = Self; + fn deref(&self) -> &Self { + self + } +} +/// Calls the free function if one is set +#[no_mangle] +pub extern "C" fn KeysInterface_free(this_ptr: KeysInterface) { } +impl Drop for KeysInterface { + fn drop(&mut self) { + if let Some(f) = self.free { + f(self.this_arg); + } + } +} + +use lightning::chain::keysinterface::InMemorySigner as nativeInMemorySignerImport; +type nativeInMemorySigner = nativeInMemorySignerImport; + +/// A simple implementation of Sign that just keeps the private keys in memory. +/// +/// This implementation performs no policy checks and is insufficient by itself as +/// a secure external signer. +#[must_use] +#[repr(C)] +pub struct InMemorySigner { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeInMemorySigner, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for InMemorySigner { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeInMemorySigner>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(self.inner) }; + } + } +} +/// Frees any resources used by the InMemorySigner, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn InMemorySigner_free(this_obj: InMemorySigner) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +extern "C" fn InMemorySigner_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeInMemorySigner); } +} +#[allow(unused)] +/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy +impl InMemorySigner { + pub(crate) fn take_inner(mut self) -> *mut nativeInMemorySigner { + assert!(self.is_owned); + let ret = self.inner; + self.inner = std::ptr::null_mut(); + ret + } +} +/// Private key of anchor tx +#[no_mangle] +pub extern "C" fn InMemorySigner_get_funding_key(this_ptr: &InMemorySigner) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.funding_key; + (*inner_val).as_ref() +} +/// Private key of anchor tx +#[no_mangle] +pub extern "C" fn InMemorySigner_set_funding_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) { + unsafe { &mut *this_ptr.inner }.funding_key = val.into_rust(); +} +/// Holder secret key for blinded revocation pubkey +#[no_mangle] +pub extern "C" fn InMemorySigner_get_revocation_base_key(this_ptr: &InMemorySigner) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_base_key; + (*inner_val).as_ref() +} +/// Holder secret key for blinded revocation pubkey +#[no_mangle] +pub extern "C" fn InMemorySigner_set_revocation_base_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) { + unsafe { &mut *this_ptr.inner }.revocation_base_key = val.into_rust(); +} +/// Holder secret key used for our balance in counterparty-broadcasted commitment transactions +#[no_mangle] +pub extern "C" fn InMemorySigner_get_payment_key(this_ptr: &InMemorySigner) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.payment_key; + (*inner_val).as_ref() +} +/// Holder secret key used for our balance in counterparty-broadcasted commitment transactions +#[no_mangle] +pub extern "C" fn InMemorySigner_set_payment_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) { + unsafe { &mut *this_ptr.inner }.payment_key = val.into_rust(); +} +/// Holder secret key used in HTLC tx +#[no_mangle] +pub extern "C" fn InMemorySigner_get_delayed_payment_base_key(this_ptr: &InMemorySigner) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.delayed_payment_base_key; + (*inner_val).as_ref() +} +/// Holder secret key used in HTLC tx +#[no_mangle] +pub extern "C" fn InMemorySigner_set_delayed_payment_base_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) { + unsafe { &mut *this_ptr.inner }.delayed_payment_base_key = val.into_rust(); +} +/// Holder htlc secret key used in commitment tx htlc outputs +#[no_mangle] +pub extern "C" fn InMemorySigner_get_htlc_base_key(this_ptr: &InMemorySigner) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.htlc_base_key; + (*inner_val).as_ref() +} +/// Holder htlc secret key used in commitment tx htlc outputs +#[no_mangle] +pub extern "C" fn InMemorySigner_set_htlc_base_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) { + unsafe { &mut *this_ptr.inner }.htlc_base_key = val.into_rust(); +} +/// Commitment seed +#[no_mangle] +pub extern "C" fn InMemorySigner_get_commitment_seed(this_ptr: &InMemorySigner) -> *const [u8; 32] { + let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.commitment_seed; + &(*inner_val) +} +/// Commitment seed +#[no_mangle] +pub extern "C" fn InMemorySigner_set_commitment_seed(this_ptr: &mut InMemorySigner, mut val: crate::c_types::ThirtyTwoBytes) { + unsafe { &mut *this_ptr.inner }.commitment_seed = val.data; +} +impl Clone for InMemorySigner { + fn clone(&self) -> Self { + Self { + inner: if <*mut nativeInMemorySigner>::is_null(self.inner) { std::ptr::null_mut() } else { + Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + is_owned: true, + } + } +} +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn InMemorySigner_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeInMemorySigner)).clone() })) as *mut c_void +} +#[no_mangle] +/// Creates a copy of the InMemorySigner +pub extern "C" fn InMemorySigner_clone(orig: &InMemorySigner) -> InMemorySigner { + orig.clone() +} +/// Create a new InMemorySigner +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_new(mut funding_key: crate::c_types::SecretKey, mut revocation_base_key: crate::c_types::SecretKey, mut payment_key: crate::c_types::SecretKey, mut delayed_payment_base_key: crate::c_types::SecretKey, mut htlc_base_key: crate::c_types::SecretKey, mut commitment_seed: crate::c_types::ThirtyTwoBytes, mut channel_value_satoshis: u64, mut channel_keys_id: crate::c_types::ThirtyTwoBytes) -> crate::lightning::chain::keysinterface::InMemorySigner { + let mut ret = lightning::chain::keysinterface::InMemorySigner::new(secp256k1::SECP256K1, funding_key.into_rust(), revocation_base_key.into_rust(), payment_key.into_rust(), delayed_payment_base_key.into_rust(), htlc_base_key.into_rust(), commitment_seed.data, channel_value_satoshis, channel_keys_id.data); + crate::lightning::chain::keysinterface::InMemorySigner { inner: Box::into_raw(Box::new(ret)), is_owned: true } +} + +/// Counterparty pubkeys. +/// Will panic if ready_channel wasn't called. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_counterparty_pubkeys(this_arg: &InMemorySigner) -> crate::lightning::ln::chan_utils::ChannelPublicKeys { + let mut ret = unsafe { &*this_arg.inner }.counterparty_pubkeys(); + crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } +} + +/// The contest_delay value specified by our counterparty and applied on holder-broadcastable +/// transactions, ie the amount of time that we have to wait to recover our funds if we +/// broadcast a transaction. +/// Will panic if ready_channel wasn't called. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_counterparty_selected_contest_delay(this_arg: &InMemorySigner) -> u16 { + let mut ret = unsafe { &*this_arg.inner }.counterparty_selected_contest_delay(); + ret +} + +/// The contest_delay value specified by us and applied on transactions broadcastable +/// by our counterparty, ie the amount of time that they have to wait to recover their funds +/// if they broadcast a transaction. +/// Will panic if ready_channel wasn't called. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_holder_selected_contest_delay(this_arg: &InMemorySigner) -> u16 { + let mut ret = unsafe { &*this_arg.inner }.holder_selected_contest_delay(); + ret +} + +/// Whether the holder is the initiator +/// Will panic if ready_channel wasn't called. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_is_outbound(this_arg: &InMemorySigner) -> bool { + let mut ret = unsafe { &*this_arg.inner }.is_outbound(); + ret +} + +/// Funding outpoint +/// Will panic if ready_channel wasn't called. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_funding_outpoint(this_arg: &InMemorySigner) -> crate::lightning::chain::transaction::OutPoint { + let mut ret = unsafe { &*this_arg.inner }.funding_outpoint(); + crate::lightning::chain::transaction::OutPoint { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } +} + +/// Obtain a ChannelTransactionParameters for this channel, to be used when verifying or +/// building transactions. +/// +/// Will panic if ready_channel wasn't called. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_get_channel_parameters(this_arg: &InMemorySigner) -> crate::lightning::ln::chan_utils::ChannelTransactionParameters { + let mut ret = unsafe { &*this_arg.inner }.get_channel_parameters(); + crate::lightning::ln::chan_utils::ChannelTransactionParameters { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } +} + +/// Sign the single input of spend_tx at index `input_idx` which spends the output +/// described by descriptor, returning the witness stack for the input. +/// +/// Returns an Err if the input at input_idx does not exist, has a non-empty script_sig, +/// or is not spending the outpoint described by `descriptor.outpoint`. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_sign_counterparty_payment_input(this_arg: &InMemorySigner, mut spend_tx: crate::c_types::Transaction, mut input_idx: usize, descriptor: &crate::lightning::chain::keysinterface::StaticPaymentOutputDescriptor) -> crate::c_types::derived::CResult_CVec_CVec_u8ZZNoneZ { + let mut ret = unsafe { &*this_arg.inner }.sign_counterparty_payment_input(&spend_tx.into_bitcoin(), input_idx, unsafe { &*descriptor.inner }, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = Vec::new(); for mut item in o.drain(..) { local_ret_0.push( { let mut local_ret_0_0 = Vec::new(); for mut item in item.drain(..) { local_ret_0_0.push( { item }); }; local_ret_0_0.into() }); }; local_ret_0.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} + +/// Sign the single input of spend_tx at index `input_idx` which spends the output +/// described by descriptor, returning the witness stack for the input. +/// +/// Returns an Err if the input at input_idx does not exist, has a non-empty script_sig, +/// is not spending the outpoint described by `descriptor.outpoint`, or does not have a +/// sequence set to `descriptor.to_self_delay`. +#[must_use] +#[no_mangle] +pub extern "C" fn InMemorySigner_sign_dynamic_p2wsh_input(this_arg: &InMemorySigner, mut spend_tx: crate::c_types::Transaction, mut input_idx: usize, descriptor: &crate::lightning::chain::keysinterface::DelayedPaymentOutputDescriptor) -> crate::c_types::derived::CResult_CVec_CVec_u8ZZNoneZ { + let mut ret = unsafe { &*this_arg.inner }.sign_dynamic_p2wsh_input(&spend_tx.into_bitcoin(), input_idx, unsafe { &*descriptor.inner }, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = Vec::new(); for mut item in o.drain(..) { local_ret_0.push( { let mut local_ret_0_0 = Vec::new(); for mut item in item.drain(..) { local_ret_0_0.push( { item }); }; local_ret_0_0.into() }); }; local_ret_0.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} + +impl From for crate::lightning::chain::keysinterface::BaseSign { + fn from(obj: nativeInMemorySigner) -> Self { + let mut rust_obj = InMemorySigner { inner: Box::into_raw(Box::new(obj)), is_owned: true }; + let mut ret = InMemorySigner_as_BaseSign(&rust_obj); + // We want to free rust_obj when ret gets drop()'d, not rust_obj, so wipe rust_obj's pointer and set ret's free() fn + rust_obj.inner = std::ptr::null_mut(); + ret.free = Some(InMemorySigner_free_void); + ret + } +} +/// Constructs a new BaseSign which calls the relevant methods on this_arg. +/// This copies the `inner` pointer in this_arg and thus the returned BaseSign must be freed before this_arg is +#[no_mangle] +pub extern "C" fn InMemorySigner_as_BaseSign(this_arg: &InMemorySigner) -> crate::lightning::chain::keysinterface::BaseSign { + crate::lightning::chain::keysinterface::BaseSign { + this_arg: unsafe { (*this_arg).inner as *mut c_void }, + free: None, + get_per_commitment_point: InMemorySigner_BaseSign_get_per_commitment_point, + release_commitment_secret: InMemorySigner_BaseSign_release_commitment_secret, + + pubkeys: crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: std::ptr::null_mut(), is_owned: true }, + set_pubkeys: Some(InMemorySigner_BaseSign_set_pubkeys), + channel_keys_id: InMemorySigner_BaseSign_channel_keys_id, + sign_counterparty_commitment: InMemorySigner_BaseSign_sign_counterparty_commitment, + sign_holder_commitment_and_htlcs: InMemorySigner_BaseSign_sign_holder_commitment_and_htlcs, + sign_justice_transaction: InMemorySigner_BaseSign_sign_justice_transaction, + sign_counterparty_htlc_transaction: InMemorySigner_BaseSign_sign_counterparty_htlc_transaction, + sign_closing_transaction: InMemorySigner_BaseSign_sign_closing_transaction, + sign_channel_announcement: InMemorySigner_BaseSign_sign_channel_announcement, + ready_channel: InMemorySigner_BaseSign_ready_channel, + } +} + +#[must_use] +extern "C" fn InMemorySigner_BaseSign_get_per_commitment_point(this_arg: *const c_void, mut idx: u64) -> crate::c_types::PublicKey { + let mut ret = >::get_per_commitment_point(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, idx, secp256k1::SECP256K1); + crate::c_types::PublicKey::from_rust(&ret) +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_release_commitment_secret(this_arg: *const c_void, mut idx: u64) -> crate::c_types::ThirtyTwoBytes { + let mut ret = >::release_commitment_secret(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, idx); + crate::c_types::ThirtyTwoBytes { data: ret } +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_pubkeys(this_arg: *const c_void) -> crate::lightning::ln::chan_utils::ChannelPublicKeys { + let mut ret = >::pubkeys(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, ); + crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } +} +extern "C" fn InMemorySigner_BaseSign_set_pubkeys(trait_self_arg: &BaseSign) { + // This is a bit race-y in the general case, but for our specific use-cases today, we're safe + // Specifically, we must ensure that the first time we're called it can never be in parallel + if trait_self_arg.pubkeys.inner.is_null() { + unsafe { &mut *(trait_self_arg as *const BaseSign as *mut BaseSign) }.pubkeys = InMemorySigner_BaseSign_pubkeys(trait_self_arg.this_arg); + } +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_channel_keys_id(this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes { + let mut ret = >::channel_keys_id(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, ); + crate::c_types::ThirtyTwoBytes { data: ret } +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_sign_counterparty_commitment(this_arg: *const c_void, commitment_tx: &crate::lightning::ln::chan_utils::CommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ { + let mut ret = >::sign_counterparty_commitment(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*commitment_tx.inner }, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = o; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { crate::c_types::Signature::from_rust(&item) }); }; let mut local_ret_0 = (crate::c_types::Signature::from_rust(&orig_ret_0_0), local_orig_ret_0_1.into()).into(); local_ret_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_sign_holder_commitment_and_htlcs(this_arg: *const c_void, commitment_tx: &crate::lightning::ln::chan_utils::HolderCommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ { + let mut ret = >::sign_holder_commitment_and_htlcs(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*commitment_tx.inner }, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = o; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { crate::c_types::Signature::from_rust(&item) }); }; let mut local_ret_0 = (crate::c_types::Signature::from_rust(&orig_ret_0_0), local_orig_ret_0_1.into()).into(); local_ret_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_sign_justice_transaction(this_arg: *const c_void, mut justice_tx: crate::c_types::Transaction, mut input: usize, mut amount: u64, per_commitment_key: *const [u8; 32], htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ { + let mut local_htlc = if htlc.inner.is_null() { None } else { Some((* { unsafe { &*htlc.inner } }).clone()) }; + let mut ret = >::sign_justice_transaction(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, &justice_tx.into_bitcoin(), input, amount, &::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *per_commitment_key}[..]).unwrap(), &local_htlc, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_sign_counterparty_htlc_transaction(this_arg: *const c_void, mut htlc_tx: crate::c_types::Transaction, mut input: usize, mut amount: u64, mut per_commitment_point: crate::c_types::PublicKey, htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ { + let mut ret = >::sign_counterparty_htlc_transaction(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, &htlc_tx.into_bitcoin(), input, amount, &per_commitment_point.into_rust(), unsafe { &*htlc.inner }, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_sign_closing_transaction(this_arg: *const c_void, mut closing_tx: crate::c_types::Transaction) -> crate::c_types::derived::CResult_SignatureNoneZ { + let mut ret = >::sign_closing_transaction(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, &closing_tx.into_bitcoin(), secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} +#[must_use] +extern "C" fn InMemorySigner_BaseSign_sign_channel_announcement(this_arg: *const c_void, msg: &crate::lightning::ln::msgs::UnsignedChannelAnnouncement) -> crate::c_types::derived::CResult_SignatureNoneZ { + let mut ret = >::sign_channel_announcement(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*msg.inner }, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} +extern "C" fn InMemorySigner_BaseSign_ready_channel(this_arg: *mut c_void, channel_parameters: &crate::lightning::ln::chan_utils::ChannelTransactionParameters) { + >::ready_channel(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*channel_parameters.inner }) +} + +impl From for crate::lightning::chain::keysinterface::Sign { + fn from(obj: nativeInMemorySigner) -> Self { + let mut rust_obj = InMemorySigner { inner: Box::into_raw(Box::new(obj)), is_owned: true }; + let mut ret = InMemorySigner_as_Sign(&rust_obj); + // We want to free rust_obj when ret gets drop()'d, not rust_obj, so wipe rust_obj's pointer and set ret's free() fn + rust_obj.inner = std::ptr::null_mut(); + ret.free = Some(InMemorySigner_free_void); + ret + } +} +/// Constructs a new Sign which calls the relevant methods on this_arg. +/// This copies the `inner` pointer in this_arg and thus the returned Sign must be freed before this_arg is +#[no_mangle] +pub extern "C" fn InMemorySigner_as_Sign(this_arg: &InMemorySigner) -> crate::lightning::chain::keysinterface::Sign { + crate::lightning::chain::keysinterface::Sign { + this_arg: unsafe { (*this_arg).inner as *mut c_void }, + free: None, + BaseSign: crate::lightning::chain::keysinterface::BaseSign { + this_arg: unsafe { (*this_arg).inner as *mut c_void }, + free: None, + get_per_commitment_point: InMemorySigner_BaseSign_get_per_commitment_point, + release_commitment_secret: InMemorySigner_BaseSign_release_commitment_secret, + + pubkeys: crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: std::ptr::null_mut(), is_owned: true }, + set_pubkeys: Some(InMemorySigner_BaseSign_set_pubkeys), + channel_keys_id: InMemorySigner_BaseSign_channel_keys_id, + sign_counterparty_commitment: InMemorySigner_BaseSign_sign_counterparty_commitment, + sign_holder_commitment_and_htlcs: InMemorySigner_BaseSign_sign_holder_commitment_and_htlcs, + sign_justice_transaction: InMemorySigner_BaseSign_sign_justice_transaction, + sign_counterparty_htlc_transaction: InMemorySigner_BaseSign_sign_counterparty_htlc_transaction, + sign_closing_transaction: InMemorySigner_BaseSign_sign_closing_transaction, + sign_channel_announcement: InMemorySigner_BaseSign_sign_channel_announcement, + ready_channel: InMemorySigner_BaseSign_ready_channel, + }, + BaseSign_clone: InMemorySigner_BaseSign_clone, + write: InMemorySigner_write_void, + clone: Some(InMemorySigner_clone_void), + } +} + +extern "C" fn InMemorySigner_BaseSign_clone(orig: &crate::lightning::chain::keysinterface::BaseSign) -> crate::lightning::chain::keysinterface::BaseSign { + crate::lightning::chain::keysinterface::BaseSign { + this_arg: orig.this_arg, + free: None, + get_per_commitment_point: InMemorySigner_BaseSign_get_per_commitment_point, + release_commitment_secret: InMemorySigner_BaseSign_release_commitment_secret, + + pubkeys: crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: std::ptr::null_mut(), is_owned: true }, + set_pubkeys: Some(InMemorySigner_BaseSign_set_pubkeys), + channel_keys_id: InMemorySigner_BaseSign_channel_keys_id, + sign_counterparty_commitment: InMemorySigner_BaseSign_sign_counterparty_commitment, + sign_holder_commitment_and_htlcs: InMemorySigner_BaseSign_sign_holder_commitment_and_htlcs, + sign_justice_transaction: InMemorySigner_BaseSign_sign_justice_transaction, + sign_counterparty_htlc_transaction: InMemorySigner_BaseSign_sign_counterparty_htlc_transaction, + sign_closing_transaction: InMemorySigner_BaseSign_sign_closing_transaction, + sign_channel_announcement: InMemorySigner_BaseSign_sign_channel_announcement, + ready_channel: InMemorySigner_BaseSign_ready_channel, + } +} + +#[no_mangle] +/// Serialize the InMemorySigner object into a byte array which can be read by InMemorySigner_read +pub extern "C" fn InMemorySigner_write(obj: &InMemorySigner) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) +} +#[no_mangle] +pub(crate) extern "C" fn InMemorySigner_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeInMemorySigner) }) +} +#[no_mangle] +/// Read a InMemorySigner from a byte array, created by InMemorySigner_write +pub extern "C" fn InMemorySigner_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_InMemorySignerDecodeErrorZ { + let res = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::chain::keysinterface::InMemorySigner { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + local_res +} + +use lightning::chain::keysinterface::KeysManager as nativeKeysManagerImport; +type nativeKeysManager = nativeKeysManagerImport; + +/// Simple KeysInterface implementor that takes a 32-byte seed for use as a BIP 32 extended key +/// and derives keys from that. +/// +/// Your node_id is seed/0' +/// ChannelMonitor closes may use seed/1' +/// Cooperative closes may use seed/2' +/// The two close keys may be needed to claim on-chain funds! +#[must_use] +#[repr(C)] +pub struct KeysManager { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeKeysManager, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for KeysManager { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeKeysManager>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(self.inner) }; + } + } +} +/// Frees any resources used by the KeysManager, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn KeysManager_free(this_obj: KeysManager) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +extern "C" fn KeysManager_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeKeysManager); } +} +#[allow(unused)] +/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy +impl KeysManager { + pub(crate) fn take_inner(mut self) -> *mut nativeKeysManager { + assert!(self.is_owned); + let ret = self.inner; + self.inner = std::ptr::null_mut(); + ret + } +} +/// Constructs a KeysManager from a 32-byte seed. If the seed is in some way biased (eg your +/// CSRNG is busted) this may panic (but more importantly, you will possibly lose funds). +/// starting_time isn't strictly required to actually be a time, but it must absolutely, +/// without a doubt, be unique to this instance. ie if you start multiple times with the same +/// seed, starting_time must be unique to each run. Thus, the easiest way to achieve this is to +/// simply use the current time (with very high precision). +/// +/// The seed MUST be backed up safely prior to use so that the keys can be re-created, however, +/// obviously, starting_time should be unique every time you reload the library - it is only +/// used to generate new ephemeral key data (which will be stored by the individual channel if +/// necessary). +/// +/// Note that the seed is required to recover certain on-chain funds independent of +/// ChannelMonitor data, though a current copy of ChannelMonitor data is also required for any +/// channel, and some on-chain during-closing funds. +/// +/// Note that until the 0.1 release there is no guarantee of backward compatibility between +/// versions. Once the library is more fully supported, the docs will be updated to include a +/// detailed description of the guarantee. +#[must_use] +#[no_mangle] +pub extern "C" fn KeysManager_new(seed: *const [u8; 32], mut starting_time_secs: u64, mut starting_time_nanos: u32) -> KeysManager { + let mut ret = lightning::chain::keysinterface::KeysManager::new(unsafe { &*seed}, starting_time_secs, starting_time_nanos); + KeysManager { inner: Box::into_raw(Box::new(ret)), is_owned: true } +} + +/// Derive an old Sign containing per-channel secrets based on a key derivation parameters. +/// +/// Key derivation parameters are accessible through a per-channel secrets +/// Sign::channel_keys_id and is provided inside DynamicOuputP2WSH in case of +/// onchain output detection for which a corresponding delayed_payment_key must be derived. +#[must_use] +#[no_mangle] +pub extern "C" fn KeysManager_derive_channel_keys(this_arg: &KeysManager, mut channel_value_satoshis: u64, params: *const [u8; 32]) -> crate::lightning::chain::keysinterface::InMemorySigner { + let mut ret = unsafe { &*this_arg.inner }.derive_channel_keys(channel_value_satoshis, unsafe { &*params}); + crate::lightning::chain::keysinterface::InMemorySigner { inner: Box::into_raw(Box::new(ret)), is_owned: true } +} + +/// Creates a Transaction which spends the given descriptors to the given outputs, plus an +/// output to the given change destination (if sufficient change value remains). The +/// transaction will have a feerate, at least, of the given value. +/// +/// Returns `Err(())` if the output value is greater than the input value minus required fee or +/// if a descriptor was duplicated. +/// +/// We do not enforce that outputs meet the dust limit or that any output scripts are standard. +/// +/// May panic if the `SpendableOutputDescriptor`s were not generated by Channels which used +/// this KeysManager or one of the `InMemorySigner` created by this KeysManager. +#[must_use] +#[no_mangle] +pub extern "C" fn KeysManager_spend_spendable_outputs(this_arg: &KeysManager, mut descriptors: crate::c_types::derived::CVec_SpendableOutputDescriptorZ, mut outputs: crate::c_types::derived::CVec_TxOutZ, mut change_destination_script: crate::c_types::derived::CVec_u8Z, mut feerate_sat_per_1000_weight: u32) -> crate::c_types::derived::CResult_TransactionNoneZ { + let mut local_descriptors = Vec::new(); for mut item in descriptors.into_rust().drain(..) { local_descriptors.push( { item.into_native() }); }; + let mut local_outputs = Vec::new(); for mut item in outputs.into_rust().drain(..) { local_outputs.push( { item.into_rust() }); }; + let mut ret = unsafe { &*this_arg.inner }.spend_spendable_outputs(&local_descriptors.iter().collect::>()[..], local_outputs, ::bitcoin::blockdata::script::Script::from(change_destination_script.into_rust()), feerate_sat_per_1000_weight, secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = ::bitcoin::consensus::encode::serialize(&o); crate::c_types::Transaction::from_vec(local_ret_0) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + local_ret +} + +impl From for crate::lightning::chain::keysinterface::KeysInterface { + fn from(obj: nativeKeysManager) -> Self { + let mut rust_obj = KeysManager { inner: Box::into_raw(Box::new(obj)), is_owned: true }; + let mut ret = KeysManager_as_KeysInterface(&rust_obj); + // We want to free rust_obj when ret gets drop()'d, not rust_obj, so wipe rust_obj's pointer and set ret's free() fn + rust_obj.inner = std::ptr::null_mut(); + ret.free = Some(KeysManager_free_void); + ret + } +} +/// Constructs a new KeysInterface which calls the relevant methods on this_arg. +/// This copies the `inner` pointer in this_arg and thus the returned KeysInterface must be freed before this_arg is +#[no_mangle] +pub extern "C" fn KeysManager_as_KeysInterface(this_arg: &KeysManager) -> crate::lightning::chain::keysinterface::KeysInterface { + crate::lightning::chain::keysinterface::KeysInterface { + this_arg: unsafe { (*this_arg).inner as *mut c_void }, + free: None, + get_node_secret: KeysManager_KeysInterface_get_node_secret, + get_destination_script: KeysManager_KeysInterface_get_destination_script, + get_shutdown_pubkey: KeysManager_KeysInterface_get_shutdown_pubkey, + get_channel_signer: KeysManager_KeysInterface_get_channel_signer, + get_secure_random_bytes: KeysManager_KeysInterface_get_secure_random_bytes, + read_chan_signer: KeysManager_KeysInterface_read_chan_signer, + } +} + +#[must_use] +extern "C" fn KeysManager_KeysInterface_get_node_secret(this_arg: *const c_void) -> crate::c_types::SecretKey { + let mut ret = >::get_node_secret(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, ); + crate::c_types::SecretKey::from_rust(ret) +} +#[must_use] +extern "C" fn KeysManager_KeysInterface_get_destination_script(this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z { + let mut ret = >::get_destination_script(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, ); + ret.into_bytes().into() +} +#[must_use] +extern "C" fn KeysManager_KeysInterface_get_shutdown_pubkey(this_arg: *const c_void) -> crate::c_types::PublicKey { + let mut ret = >::get_shutdown_pubkey(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, ); + crate::c_types::PublicKey::from_rust(&ret) +} +#[must_use] +extern "C" fn KeysManager_KeysInterface_get_channel_signer(this_arg: *const c_void, mut _inbound: bool, mut channel_value_satoshis: u64) -> crate::lightning::chain::keysinterface::Sign { + let mut ret = >::get_channel_signer(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, _inbound, channel_value_satoshis); + ret.into() +} +#[must_use] +extern "C" fn KeysManager_KeysInterface_get_secure_random_bytes(this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes { + let mut ret = >::get_secure_random_bytes(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, ); + crate::c_types::ThirtyTwoBytes { data: ret } +} +#[must_use] +extern "C" fn KeysManager_KeysInterface_read_chan_signer(this_arg: *const c_void, mut reader: crate::c_types::u8slice) -> crate::c_types::derived::CResult_SignDecodeErrorZ { + let mut ret = >::read_chan_signer(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, reader.to_slice()); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { o.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + local_ret +} +