Commit Graph

102 Commits

Author SHA1 Message Date
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
Alfredo Garcia ded273413a
Use transcripts in block verify tests (#675)
* change consensus block tests to transcripts

* fix lints

Co-authored-by: Jane Lusby <jlusby42@gmail.com>

Co-authored-by: Jane Lusby <jlusby42@gmail.com>
2020-08-05 14:41:41 -07:00
teor ffb6aacf33 feature: Check difficulty in BlockVerifier 2020-08-04 12:29:07 +10:00
dependabot[bot] 8e268150a7 build(deps): bump tracing-subscriber from 0.2.9 to 0.2.10
Bumps [tracing-subscriber](https://github.com/tokio-rs/tracing) from 0.2.9 to 0.2.10.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](https://github.com/tokio-rs/tracing/compare/tracing-subscriber-0.2.9...tracing-subscriber-0.2.10)

Signed-off-by: dependabot[bot] <support@github.com>
2020-08-03 21:11:50 -04:00
dependabot[bot] f3b65f9609 build(deps): bump tracing from 0.1.17 to 0.1.18
Bumps [tracing](https://github.com/tokio-rs/tracing) from 0.1.17 to 0.1.18.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](https://github.com/tokio-rs/tracing/compare/tracing-0.1.17...tracing-0.1.18)

Signed-off-by: dependabot[bot] <support@github.com>
2020-08-03 15:49:30 -04:00
teor d4d1edad5a
fix: Use types to avoid ChainVerifier inconsistencies (#797) 2020-07-31 10:21:20 +10:00
teor e74ff18708 refactor: Move the checkpoint list tests to their own file 2020-07-31 07:21:43 +10:00
teor 5b9703f95a fix: Avoid creating a CheckpointVerifier if it is not needed
Also:
* make sure the checkpoints cover all pre-Sapling blocks
* do some minor refactoring to reduce duplicate code
2020-07-30 13:30:18 +10:00
teor fbeae99328 fix: Only warn on unexpected high blocks
High blocks are expected when we restart with most of the chain in our
state.

Also downgrade the message from warn to info.
2020-07-30 13:30:18 +10:00
teor cf0fd043d4 feature: Update mainnet and testnet checkpoints 2020-07-28 22:27:49 -04:00
teor 396d209638 feature: Add the MinimumDifficulty consensus parameter 2020-07-28 10:34:41 +10:00
teor 1e787aecb9 feature: Check the previous block height in BlockVerifier
This is a temporary busy-waiting fix.
2020-07-27 14:14:44 -04:00
teor 2b1e7162b1 feature: Set the testnet Canopy upgrade height
See ZIP 251 and zcash/zips#385 for details.

Closes #756.
2020-07-27 14:03:14 -04:00
teor 993532b604 feature: Add a "Genesis" network upgrade
We can use this network upgrade to implement different consensus rules
and chain context handling for genesis blocks.

Part of the chain state design in #682.
2020-07-27 14:03:14 -04:00
teor 2d3926e800 fix: Replace a return with unreachable! 2020-07-27 13:49:11 -04:00
Alfredo Garcia 5b3c6e4c6c
Port bash checkpoint scripts to zebra-checkpoints single rust binary (#740)
* make zebra-checkpoints
* fix LOOKAHEAD_LIMIT scope
* add a default cli path
* change doc usage text
* add tracing
* move MAX_CHECKPOINT_HEIGHT_GAP to zebra-consensus
* do byte_reverse_hex in a map
2020-07-25 17:53:00 +10:00
Henry de Valence 4aa00ad216 Align crate versions and user-agent with NU numbers.
We had a brief discussion on discord and it seemed like we had consensus on the
following versioning policy:

* zebrad: match major version to NU version, so we will start by releasing
  zebrad 3.0.0;

* zebra-* libraries: start by matching zebrad's version, then increment major
  versions of each library as we need to make breaking changes (potentially
  faster than the zebrad version, always respecting semver but making no
  guarantees about the longevity of major releases).

This commit sets all of the crate versions to 3.0.0-alpha.0 -- the -alpha.0
marks it as a prerelease not subject to perfect adherence to compatibility
guarantees.
2020-07-24 11:46:37 -07:00
dependabot[bot] f7c59c99b5 build(deps): bump tracing-subscriber from 0.2.8 to 0.2.9
Bumps [tracing-subscriber](https://github.com/tokio-rs/tracing) from 0.2.8 to 0.2.9.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](https://github.com/tokio-rs/tracing/compare/tracing-subscriber-0.2.8...tracing-subscriber-0.2.9)

Signed-off-by: dependabot[bot] <support@github.com>
2020-07-24 14:31:44 -04:00
teor 2acfcf3a90
Make the CheckpointVerifier handle partial restarts (#736)
Also put generic bounds on the BlockVerifier struct,
so we get better compilation errors.
2020-07-24 11:47:48 +10:00
teor 77a1fefa1e
Download genesis (#731)
* feature: Add more CheckpointVerifier tracing

* fix: Download the genesis block
2020-07-23 10:56:52 -07:00
dependabot[bot] 909b74a613
build(deps): bump tracing from 0.1.16 to 0.1.17 (#734)
Bumps [tracing](https://github.com/tokio-rs/tracing) from 0.1.16 to 0.1.17.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](https://github.com/tokio-rs/tracing/compare/tracing-0.1.16...tracing-0.1.17)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2020-07-23 10:54:56 -07:00
Jane Lusby c1a1493159
use dirs crate for default location of state and config (#714)
* use dirs crate for default location of state and config
* panic if a path isn't specified for zebra-state
2020-07-23 21:12:20 +10:00
teor 132875198e fix: Simplify ChainVerifier 2020-07-23 03:46:24 -04:00
teor 0e0c36c010 fixup! feature: Add network upgrade activation heights 2020-07-23 15:52:18 +10:00
teor 4b683ea2b1 feature: Add Consensus Branch Ids 2020-07-23 15:52:18 +10:00
teor 359febb2e2 doc: Update a CheckpointList comment 2020-07-23 15:52:18 +10:00
teor c9ee85c3b5 feature: Add network upgrade activation heights 2020-07-23 15:52:18 +10:00
Henry de Valence 4a98b8fa0d Add basic metrics to the syncer. 2020-07-22 21:59:00 -07:00
Henry de Valence c2c2a28e8b Improve tracing output in chain verifier 2020-07-22 21:59:00 -07:00
Jane Lusby 7d4e717182
Add block locator request to state layer (#712)
* Add block locator request to state layer

* pass genesis in request

* Update zebrad/src/commands/start/sync.rs

* fix errors
2020-07-22 18:01:31 -07:00
teor cf9bd2c974 diagnostic: Warn on unexpected high blocks 2020-07-23 10:26:25 +10:00
teor 52002ac3c5 feature: Add tracing to chain and checkpoint verifiers 2020-07-23 10:26:25 +10:00
teor e75697300b fix: Remove some dead code lints 2020-07-23 10:26:25 +10:00
teor a998346f4c refactor: Split out a simpler chain::init function
This new chain::init function will let us hide the BlockVerifier and
CheckpointVerifier from the zebra-consensus public interface.
(If needed.)
2020-07-23 10:26:25 +10:00
Jane Lusby a722cf33f7 enable new tracing instrumentation in tokio 2020-07-22 14:39:54 -04:00
Henry de Valence add093e3bf consensus: fix error parameters in redjubjub::Verifier 2020-07-22 14:29:55 -04:00
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
teor f1a0036824 feature: Expect the hard-coded checkpoint lists to parse 2020-07-22 12:51:19 +10:00
teor 53606dfae8 fix: Stop the BlockVerifier modifying the state
We're going to make a new ChainVerifier that modifies the state.
2020-07-22 12:51:19 +10:00
teor b0cd920fad feature: Use the Heartwood protocol version in zebra-network 2020-07-21 10:46:07 -07:00
dependabot[bot] 2208a6a22d build(deps): bump tracing-subscriber from 0.2.7 to 0.2.8
Bumps [tracing-subscriber](https://github.com/tokio-rs/tracing) from 0.2.7 to 0.2.8.
- [Release notes](https://github.com/tokio-rs/tracing/releases)
- [Commits](https://github.com/tokio-rs/tracing/compare/tracing-subscriber-0.2.7...tracing-subscriber-0.2.8)

Signed-off-by: dependabot[bot] <support@github.com>
2020-07-21 12:01:40 -04:00
teor 1b0c0f027f
Add Hard-Coded Checkpoint Lists (#674)
* Add checkpoint list generation scripts
* Limit the checkpoint block data size
* Limit the checkpoint height gap
* Add Mainnet and Testnet checkpoint lists
* Parse hard-coded checkpoint lists

The lists were generated using the following limits:
- 256 MB spacing, based on block byte size, and
- 2000 blocks.
2020-07-21 23:11:51 +10:00
Alfredo Garcia fe2a468417
add favicon to generated docs (#681) 2020-07-17 16:45:29 -07:00
teor c13907d1af fix: Combine two matches 2020-07-16 10:06:29 -07:00
teor b648375bbe fix: Hard-code the genesis previous block hash 2020-07-16 10:06:29 -07:00
teor 39e67c8748 feature: Check the genesis hash in checkpoint lists
And use the consensus parameters to get the genesis previous block hash.
2020-07-16 10:06:29 -07:00
teor 648d8daf12 feature: Initial consensus parameter module 2020-07-16 10:06:29 -07:00
teor 1915634d2b
Check for bad heights or hashes in checkpoint lists (#639)
* Add MIN and MAX for BlockHeight and LockTime
* Remove duplicate test cases
* fix a comment about the minimum lock time

The minimum LockTime::Time is 5 November 1985 00:53:20 UTC, so the first
day that only contains valid times is 6 November 1985 (in all timezones).

Similarly, the maximum LockTime::Time is 7 February 2106 06::28::15 UTC,
so the last day that only contains valid times in all time zones is
5 February 2106.

* fix: Reject checkpoint lists with bad hashes or heights

Reject the all-zeroes hash, because it is the parent hash of the genesis
block, and should never appear in a checkpoint list.

Reject checkpoint heights that are greater than the maximum block
height.
2020-07-16 15:09:22 +10:00
teor 851afad01f
fix: Resist CheckpointVerifier memory DoS attacks (#635)
* fix: Resist CheckpointVerifier memory DoS attacks

Allow a maximum of 2 queued blocks at each height, as a tradeoff between
efficient bad block rejection, and memory usage.

Closes #628.

* fix: Make max queued blocks at height equal to fanout

* fix: Just allocate all the capacity upfront

* fix: Use with_capacity(1) and reserve_exact(1)
2020-07-15 13:27:10 -07:00
teor a19fdd9f25 fix: Rename to is_time_valid_at 2020-07-15 09:16:54 -07:00