SignError allows implementors of SignFunction to return a custom error
type. Drop this as an unconstrained type causes problems with bindings
and isn't useful unless the caller can take some sort of action based on
different errors.
Replace the Fn trait bound on signing methods with a dedicated trait
since Fn is not supported in bindings. Implement the trait for Fn so
that closures can still be used in Rust.
Use the macros introduced in the previous commit to define two builders
for each type parameterization of InvoiceBuilder
- InvoiceWithExplicitSigningPubkeyBuilder
- InvoiceWithDerivedSigningPubkeyBuilder
The difference between these and InvoiceBuilder is that these have
methods that take `self` by mutable reference instead of by value and
don't return anything instead returning the modified builder. This is
required because bindings don't support move semantics nor impl blocks
specific to a certain type parameterization. Because of this, the
builder's contents must be cloned when building a Bolt12Invoice.
Keeps InvoiceBuilder defined so that it can be used internally in
ChannelManager's OffersMessageHandler even when compiled for c_bindings.
InvoiceBuilder is not exported to bindings because it has methods that
take `self` by value and are only implemented for certain type
parameterizations. Define these methods using macros such that different
builders and related methods can be defined for c_bindings.
Use the macros introduced in the previous commit to define two builders
for each type parameterization of InvoiceRequestBuilder
- InvoiceRequestWithExplicitPayerIdBuilder
- InvoiceRequestWithDerivedPayerIdBuilder
The difference between these and InvoiceRequestBuilder is that these
have methods that take `self` by mutable reference instead of by value
and don't return anything instead returning the modified builder. This
is required because bindings don't support move semantics nor impl
blocks specific to a certain type parameterization. Because of this, the
builder's contents must be cloned when building an InvoiceRequest.
Keeps InvoiceRequestBuilder defined so that it can be used internally in
ChannelManager::pay_for_offer even when compiled for c_bindings.
InvoiceRequestBuilder is not exported to bindings because it has methods
that take `self` by value and are only implemented for certain type
parameterizations. Define these methods using macros such that different
builders and related methods can be defined for c_bindings.
Use the macros introduced in the previous commit to define a builder
called RefundMaybeWithDerivedMetadataBuilder.
The difference between this and RefundBuilder is that this has methods
that take `self` by mutable reference instead of by value and don't
return anything instead returning the modified builder. This is required
because bindings don't support move semantics. Because of this, the
builder's contents must be cloned when building a Refund.
Keeps RefundBuilder defined so that it can be used internally in
ChannelManager::create_refund_builder even when compiled for c_bindings.
RefundBuilder is not exported to bindings because it has methods that
take `self` by value. Define these methods using macros such that
different builders and related methods can be defined for c_bindings.
Use the macros introduced in the previous commit to define two builders
for each type parameterization of OfferBuilder
- OfferWithExplicitMetadataBuilder
- OfferWithDerivedMetadataBuilder
The difference between these and OfferBuilder is that these have methods
that take `self` by mutable reference instead of by value and don't
return anything instead returning the modified builder. This is required
because bindings don't support move semantics nor impl blocks specific
to a certain type parameterization. Because of this, the builder's
contents must be cloned when building an Offer.
Keeps OfferBuilder defined so that it can be used internally in
ChannelManager::create_offer_builder even when compiled for c_bindings.
OfferBuilder is not exported to bindings because it has methods that
take `self` by value and are only implemented for certain type
parameterizations. Define these methods using macros such that different
builders and related methods can be defined for c_bindings.
Peer::their_node_id is set to Some during the handshake process.
However, df3ab2ee27 accesses the field
unconditionally, causing a panic. This may be triggered if a gossip
message is received mid-handshake from another peer or if the user calls
broadcast_node_announcement during this time. The latter tends to be
executed on a timer.
Ensure that Peer::their_node_id is only accessed once the handshake is
complete.
When handling calls to `batch_funding_transaction_generated` which
were missing outputs for one of the batch channels, we'd previously
deadlock when trying to clean up the now-closed channels. This
fixes that and adds a new test case for it.
Found by the full_stack_target fuzzer.
When converting from CounterpartyForwardingInfo to PaymentRelay, the
cltv_expiry_delta is copied. Then, when forming a blinded payment path,
the value is mutated so that esoteric values don't reveal information
about the path. However, the value was only used in computing
PaymentConstraints and wasn't actually updated in PaymentRelay. Move the
logic for modifying the cltv_expiry_delta to the conversion code to
avoid this inconsistency.
The excess delta is included in the final RouteHop::cltv_expiry_delta, so by
adding it explicitly to cur_cltv we were erroneously including it twice in the
total cltv expiry.
This could've add up to an extra MAX_SHADOW_CLTV_DELTA_OFFSET (432) blocks to
the total cltv expiry.
As we'd generally like the `lightning` crate to, over time, have
more modules rather than being very monolithic, we should move the
cryptographic things into their own module, which we do here.
We also take this opportunity to move stream adapters into their
own module and make clear that the ChaChaPoly `decrypt` method is
variable time.
