We alternated between using a sha256 and using a privkey, but there are
numerous places where we have a random 32 bytes which are neither.
This fixes many of them (plus, struct privkey is now defined in terms of
struct secret).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The spec 4af8e1841151f0c6e8151979d6c89d11839b2f65 uses a 32-byte 'channel-id'
field, not to be confused with the 8-byte short ID used by gossip. Rename
appropriately, and update to the new handshake protocol.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This object is basically the embodyment of BOLT #2. Each HTLC already
knows its own state; this moves them between states and keeps them
consistent.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We had a hack for 'struct rval' in protobuf_convert.h; make an
explicit header and put it in bitcoin/preimage.h. It's not really
bitcoin-specific, but it's better than having bitcoin/script depend on
an external header.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The union still contains all the types, but we can only print
the ones which are linked in.
This makes it much easier to use type_to_string in different binaries
without pulling in the world.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell