Commit Graph

29 Commits

Author SHA1 Message Date
Conrado Gouvea 1ccb2de7c7
Add transaction downloader and verifier (#2679)
* Add transaction downloader

* Changed mempool downloader to be like inbound

* Verifier working (logs result)

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Fix coinbase check for mempool, improve is_coinbase() docs

* Change other downloads.rs docs to reflect the mempool downloads.rs changes

* Change TIMEOUTs to downloads.rs; add docs

* Renamed is_coinbase() to has_valid_coinbase_transaction_inputs() and contains_coinbase_input() to has_any_coinbase_inputs(); reorder checks

* Validate network upgrade for V4 transactions; check before computing sighash (for V5 too)

* Add block_ prefix to downloads and verifier

* Update zebra-consensus/src/transaction.rs

Co-authored-by: teor <teor@riseup.net>

* Add consensus doc; add more Block prefixes

Co-authored-by: teor <teor@riseup.net>
2021-09-02 00:06:20 +00:00
teor 2f0f379a9e
Standardise clippy lints and require docs (#2238)
* Standardise lints across Zebra crates, and add missing docs

The only remaining module with missing docs is `zebra_test::command`

* Todo -> TODO

* Clarify what a transcript ErrorChecker does

Also change `Error` -> `BoxError`

* TransError -> ExpectedTranscriptError

* Output Descriptions -> Output descriptions
2021-06-04 08:48:40 +10:00
Deirdre Connolly 7efc700aca
Merge pull request #1713 from ZcashFoundation/use-groth16-batch-math
Use batch optimizations, load params in groth16::Verifier, verify Spend & Output descriptions in transaction verifier
2021-03-24 12:28:25 -04:00
teor 258789ed9b Use the rustc unknown lints attribute
The clippy unknown lints attribute was deprecated in
nightly in rust-lang/rust#80524. The old lint name now produces a
warning.

Since we're using `allow(unknown_lints)` to suppress warnings, we need to
add the canonical name, so we can continue to build without warnings on
nightly.

But we also need to keep the old name, so we can continue to build
without warnings on stable.

And therefore, we also need to disable the "removed lints" warning,
otherwise we'll get warnings about the old name on nightly.

We'll need to keep this transitional clippy config until rustc 1.51 is
stable.
2021-01-19 11:02:20 -05:00
teor 3699bbdae6 Add some additional sync correctness constraints
And adjust the sync restart delay as a consequence.
2021-01-13 20:46:25 -05:00
teor 92eb92d1dd
Disable the nightly clippy unnecessary_wraps lint (#1403)
It seems to be a bit broken - some of our functions return `Result` for
consistency with similar functions. But the lint picks them up anyway.
2020-12-01 12:20:57 +10:00
Deirdre Connolly 0cb8010ae7 Remove allow(dead_code) on transaction module] 2020-10-28 21:44:13 -04:00
Deirdre Connolly 1d646e6a27 Make Clippy happy 2020-10-28 21:44:13 -04:00
Deirdre Connolly 9549e180c0 Allow dead_code on parameters for now 2020-10-20 11:16:22 -04:00
Henry de Valence eb43893de0 consensus: minimize API, clean docs
This reduces the API surface to the minimum required for functionality,
and cleans up module documentation.  The stub mempool module is deleted
entirely, since it will need to be redone later anyways.
2020-10-20 11:16:22 -04:00
Henry de Valence d4ce3eb054 consensus: improve docs
- remove no longer accurate documentation about transaction verifier;
- add description of the role of the crate.
2020-10-20 11:16:22 -04:00
Jane Lusby e05103323e
Implement Async Script Verification RFC (#961)
This commit begins the process of integrating `zcash_script` with the rest of the system for verifying scripts while syncing the block chain. It does so by adding the necessary support for looking up UTXOs from the state service and implements the first parts of the `script::Verifier` for looking up the necessary UTXOs in the state and then generating the necessary call to `zcash_script` to verify the script itself.

Co-authored-by: teor <teor@riseup.net>
2020-10-14 14:06:32 -07:00
Alfredo Garcia c616c7ffd2
Move consensus verification errors (#1070)
* refactor block and tx validation errors

* rename errors module to error

* move NoTransactions to BlockError

* clarify some errors, use dbg format for hash in error

* mnake is_coinbase_first return BlockError

* add new error types for each consensus Service

Co-authored-by: Jane Lusby <jane@zfnd.org>
2020-09-21 11:54:06 -07:00
Henry de Valence 6dd7c6495b consensus: make ChainVerifier a router
Instead of conditionally parsing the hardcoded checkpoint list and
optionally making a CheckpointVerifier, make one unconditionally, and
use the config settings to decide whether to route responses to it.

Then, fix up all of the places needed to make it compile and remove all
of the dead code.
2020-09-11 13:37:49 -07:00
Henry de Valence 93cc6957b1 consensus: partially update to new state API
This disables one test that can't be easily fixed at the moment, because
it tests the wrong thing: the checkpoint and block verifiers will
produce different transcripts.

It also disables the initial_tip logic for now, pending simplification
of the ChainVerifier logic.
2020-09-11 13:37:49 -07:00
teor 06f4a59664 feature: Add a checkpoint_sync config option
(The option doesn't do anything yet.)
2020-08-24 15:34:46 +10:00
Henry de Valence 6c379be7f2 consensus: temporarily allow dead code in zebra_consensus::primitives. 2020-08-05 21:28:55 -07:00
Henry de Valence 8d4f154c9f consensus: move redjubjub to new primitives module
This will let it sit alongside a groth16 verifier.
2020-08-05 21:28:55 -07:00
teor b8b1239ac4 feature: Implement a basic ChainVerifier service
The ChainVerifier service chooses between CheckpointVerifier and
BlockVerifier, based on the block's height.
2020-07-22 12:51:19 +10:00
Alfredo Garcia fe2a468417
add favicon to generated docs (#681) 2020-07-17 16:45:29 -07:00
teor 648d8daf12 feature: Initial consensus parameter module 2020-07-16 10:06:29 -07:00
teor 8b5ec155f0
Consensus refactor (#629)
* Flatten consensus::verify::* to consensus::*
* Move consensus::*::tests into their own files
* Move CheckpointList into its own file
* Move Progress and Target into a types module

QueuedBlock and QueuedBlockList can stay in checkpoint.rs, because
they are tightly coupled to CheckpointVerifier.
2020-07-10 16:51:01 +10:00
teor f2052b398b
feature: Implement CheckpointVerifier (#524)
* Return Poll::Ready(Err(_)) when verification has finished
* Turn checkpoint::init() into CheckpointVerifier::new()
* Accept IntoIterator<...> for CheckpointVerifier::new()
* Add a CheckpointList type

* Replace the state service with oneshot channels.
* Reject redundant checkpoint blocks
* impl Drop for CheckpointVerifier

* Add fields for caching blocks, and managing verify chains.
* Add current checkpoint functions
* Use a checkpoint range
* Get full backtraces with Err::Try
* Add enums for verification progress and target block heights.

* Replace install_tracing() with zebra_test::init()
* Add a test that mixes good and bad blocks
* Add timeouts to the checkpoint test futures
2020-07-08 21:22:36 +10:00
teor a706b65325
Consensus test tweaks (#538)
* Use spandoc correctly
* Refactor consensus test error handling
* Delete a checkpoint test that will soon be obsolete

* Only initialise tracing once for the block tests
* Use tracing in the checkpoint tests

* Move BlockVerifier and tests into block.rs

* Update a BlockVerifier comment
* Tweak some TODO comments
2020-06-25 10:14:23 +10:00
teor d8b48f885b
consensus: Add a checkpoint verifier stub (#502)
consensus: Add a checkpoint verifier stub

This stub only verifies blocks whose hashes are in the checkpoint
list.

It doesn't have tests, chain child verifies to their ancestors, or
support checkpoint maximum height queries.

Part of #429.
2020-06-22 08:51:43 +10:00
teor 997201c9c7 consensus: Add a mempool stub 2020-06-12 09:46:18 -07:00
teor 8f2ddef0a4 consensus: Add a block verification service
Part of #428.
2020-06-12 09:46:18 -07:00
Henry de Valence ff3efd504c Add Zebra logo to all workspace crates.
Also add html_root_url attributes.
2020-02-26 21:25:35 -08:00
Henry de Valence ec363d2d41 Create workspace skeleton based on design.md 2019-08-29 14:46:54 -07:00