Beginning of a first pass at simple wallet functionalities so
Grin can be used to author transactions. We introduce a
receiving server, to be at least able to build coinbase outputs
that can be used by the mining daemon.
Present:
* Coinbase receiving API.
* Command to start the receiving server.
* Beginning of a transaction sending command.
* Improvements to the REST API abstractions to support the above.
Still to do:
* Change to the miner daemon to use the receiving server.
* A command line sender.
* API to receive any transaction (not just coinbase).
* A command line receiver.
Beyond that, HD derivation and seed generation are very simple
so far and almost certainly insecure. Just for testing for now.
* Sample Signatures for put_enc and get_dec
* Implement put_enc and get_dec
* Implement ChainCodec in grin_chain
* Truncate src only on complete Blocks
* Truncate src only on complete Tip + Check Len
* Move BlockHeader Encoding to BlockHeaderCodec
* Define put_enc for store::Batch
* Replace BlockCodec and BlockHeaderCodec with generic BlockCodec<T>
* Implement Default for BlockCodec Manually
* Replace get_ser/put_ser with get_enc/get_dec for chain::ChainKVStore
* Remove Writeable/Readable for chain::Tip
* Add Tokio-io and Bytes to grin_p2p
* Additional Setup for Message enum + Msg{Encode,Decode} traits
* base msg ping pong encoding and test
* fill out msg-codec tests
* Implement Hand Encoding/Decoding
* msg-encode shake
* msg-encode getpeeraddr
* codec peer-addrs message, SockAddr struct wierdness
* header message codec
* msg encoding finished prelim
* Implement PeerCodec Encoding/Decoding
* Set PeerStore to use PeerCodec for Encoding/Decoding
* Add a DecIterator
* Prune PeerStore
* Replace Decoding and Encoding in handle_payload
* Prune Writeable/Readable methods in store::Store
* Remove Incomplete Frame Testing ( Not Nessesary right now )
* separate block and tx codec tests
* Refactor {Tx,Block}Codec Tests
Allows for custom operations associated with POST requests under
the main resource path. For example, in addition to POST on /user
to create a user, allow easy support for /user/login and
/user/logout.
* Beginning work on pool design doc
* Refining data structures; adding connect capability
* Fleshing out the connectivity paths for the tx pool
* Bringing tx pool and orphan set add logic up into parent TransactionPool
* Use output's commitment as identifier in graph structures
* Breaking a bunch of stuff to start migration to output commitment as id instead of hash
* Wrapping up updates to pool using commitment keys, dummy blockchain. Contains lots of cleanup on the internal flow.
* Beginning work on new block reconciliation
* WIP: Replacing monolithic pool cleanup with mark-and-sweep, which greatly simplifies the logic.
* Laying the groundwork for pool tests; test tx generator
* WIP: More elaborate test helpers; starting work on more elaborate block acceptance test.
* Need DummyUtxoSet to actually apply blocks now
* Using search_for_best_output to validate output status in test_basic_pool_add
* Enable modification of chain while under shared pool ownership. Cleanup pending
* WIP: Begining to untangle the TransactionPool impl from Pool and Orphans data structures
* Finishing refactoring of pool block reconciliaition; getting tests working again
* Add metrics for graph sizes; prereq to pool size throttling
* Remove redundant search_for_available_output from pool graph container
* Minimum viable block builder: return all fully rooted txs
* Tests for block building procedure
* Delegate duplicate output checking to check_duplicate_outputs
* Delegate orphan reference resolution to resolve_orphan_refs
Builds codecs to encode and decode blocks, block headers, transactions, kernels, etc. Will be used by the store and peer-to-peer layer for serialization, but also to compute hashes. Separates out serialization from core.
The wallet library will be used to manage the keys of the user. Currenty it only contains a minimal implementation of the extended keys. The format of the extended keys is subject to change
Adds a couple utility function to p2p server to check whether
we're already connected to a peer before trying again. Other
very minor fixes and logging improvements.
Adds checks to ignore a block that's already known (can happen
if the block was saved but the chain update failed). Also saves
saves the chain slightly differently during bootstrap as the
header chain should only be updated when a header is received
(and not when we got a full block). Finally, do not broadcast
during bootstrap.
Moved error and configuration types from server.rs to types.rs
where they should have been from the start. Configuration types
for the server and p2p modules now derive serde Serialize and
Deserialize so we can have a simple JSON configuration file.
Save outputs in every new block under their own hash. Done in the
same batch as the block. Allows for direct output lookups by hash
required by the p2p layer. Also store an index of output
commitment to output hash for wallet and input lookups.
Added includes for <string.h> to explicitly declare 'memcpy' where needed.
This message is typical of messages suppressed by declaring 'memcpy':
warning: In file included from depend/secp256k1-zkp/src/secp256k1.c:14:0:
warning: depend/secp256k1-zkp/src/ecmult_impl.h: In function ‘secp256k1_ecmult_context_clone’:
warning: depend/secp256k1-zkp/src/ecmult_impl.h:186:9: warning: implicit declaration of function ‘memcpy’ [-Wimplicit-function-declaration]
warning: memcpy(dst->pre_g, src->pre_g, size);
warning: ^~~~~~
* core: cleanup slicing impls for Hash
* core: clean up Readable trait, implement Readable/Writeable for various integers
* core: change Hash debug output to hex
* core: correct warnings in all modules
* Replace AsFixedBytes with Sized + AsRef<[u8]>
* Add AsRef<u8> to impl_array_newtype!
* Include AsFixedBytes as marker trait
* Related fixes
* Remove Deref
Block, Output and Kernel now have bitmasks to hold supported
features and eventually versioning. Will make adding features and
updates easier and open the possibility of soft forks.
First added feature for Output and Kernel is the marking of coinbase
related ones. Allows the validation of the coinbase part of a block.
Some renaming and cleanup of the Input, Output, Transaction and
Block structs. The main change is the removal of all the overt
structures which are now replaced by a specialized module to
build transactions easily. More specifically:
* Rename the TxProof to TxKernel in Block to reflect the current
naming consensus in MimbleWimble.
* Change Input and Output to be plain structs instead of enums
making their manipulation a lot easier. The building of
transactions is now handled by the build module.
* Input now directly includes the commitment of the Output it's
spending instead of going through an intermediate hash.
* The new build module encapsulates all the transaction building
logic, making it very straightforward by chaining combinators.
* Moves some tests to the core mod.rs as they required being able
to build a transaction to test it.
Documentation aimed at a technical audience, just requiring some basic
knowledge of bitcoin, to explain how MimbleWimble works and how it's
applied in Grin.
