* fix(network): split synthetic NotFoundRegistry from message NotFoundResponse
* docs(network): Improve `notfound` message documentation
* refactor(network): Rename MustUseOneshotSender to MustUseClientResponseSender
```
fastmod MustUseOneshotSender MustUseClientResponseSender zebra*
```
* docs(network): fix a comment typo
* refactor(network): remove generics from MustUseClientResponseSender
* refactor(network): add an inventory collector to Client, but don't use it yet
* feat(network): register missing peer responses as missing inventory
We register this missing inventory based on peer responses,
or connection errors or timeouts.
Inbound message inventory tracking requires peers to send `notfound` messages.
But `zcashd` skips `notfound` for blocks, so we can't rely on peer messages.
This missing inventory tracking works regardless of peer `notfound` messages.
* refactor(network): rename ResponseStatus to InventoryResponse
```sh
fastmod ResponseStatus InventoryResponse zebra*
```
* refactor(network): rename InventoryStatus::inner() to to_inner()
* fix(network): remove a redundant runtime.enter() in a test
* doc(network): the exact time used to filter outbound peers doesn't matter
* fix(network): handle block requests slightly more efficiently
* doc(network): fix a typo
* fmt(network): `cargo fmt` after rename ResponseStatus to InventoryResponse
* doc(test): clarify some test comments
* test(network): test synthetic notfound from connection errors and peer inventory routing
* test(network): improve inbound test diagnostics
* feat(network): add a proptest-impl feature to zebra-network
* feat(network): add a test-only connect_isolated_with_inbound function
* test(network): allow a response on the isolated peer test connection
* test(network): fix failures in test synthetic notfound
* test(network): Simplify SharedPeerError test assertions
* test(network): test synthetic notfound from partially successful requests
* test(network): MissingInventoryCollector ignores local NotFoundRegistry errors
* fix(network): decrease the inventory rotation interval
This stops us waiting 3-4 sync resets (4 minutes) before we retry a missing block.
Now we wait 1-2 sync resets (2 minutes), which is still a reasonable rate limit.
This should speed up syncing near the tip, and on testnet.
* fmt(network): cargo fmt --all
* cleanup(network): remove unnecessary allow(dead_code)
* cleanup(network): stop importing the whole sync module into tests
* doc(network): clarify syncer inventory retry constraint
* doc(network): add a TODO for a fix to ensure API behaviour remains consistent
* doc(network): fix a function doc typo
* doc(network): clarify how we handle peers that don't send `notfound`
* docs(network): clarify a test comment
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Remove redundant documentation
The documentation was exactly the same as the documentation from the
trait.
* Calculate a mock time block delta for tests
Simulate a block being added to the chain with a random block time based
on the previous block time and the target spacing time.
* Add a `time` field to `ChainTipBlock`
Store the block time so that it's ready for a future chain that allows
obtaining the chain tip's block time.
* Add `ChainTip::best_tip_block_time` method
Allow obtaining the bes chain tip's block time.
* Add method to obtain both height and block time
Prevent any data races by returning both values so that they refer to
the same chain tip.
* Add `NetworkUpgrade::all_target_spacings` method
Returns all the target spacings defined for a network.
* Create a `NetworkChainTipEstimator` helper type
Isolate the code to calculate the height estimation in a new type, so
that it's easier to understand and doesn't decrease the readability of
the `chain_tip.rs` file.
* Add `ChainTip::estimate_network_chain_tip_height`
This is more of an extension method than a trait method. It uses the
`NetworkChainTipHeightEstimator` to actually perform the estimation, but
obtains the initial information from the current best chain tip.
* Fix typo in documentation
There was an extra closing bracket in the summary line.
* Refactor `MockChainTipSender` into a separate type
Prepare to allow mocking the block time of the best tip as well as the
block height.
* Allow sending mock best tip block times
Add a separate `watch` channel to send the best tip block times from a
`MockChainTipSender` to a `MockChainTip`.
The `best_tip_height_and_block_time` implementation will only return a
value if there's a height and a block time value for the best tip.
* Fix off-by-one height estimation error
Use Euclidean division to force the division result to round down
instead of rounding towards zero. This fixes an off-by-one error when
estimating a height that is lower than the current height, because the
fractionary result was being discarded, and it should have forced the
height to go one block back.
* Fix panics on local times very far in the past
Detect situations that might cause the block height estimate to
underflow, and return the genesis height instead.
* Fix another off-by-one height estimation error
The implementation of `chrono::Duration::num_seconds` adds one to the
number of seconds if it's negative. This breaks the division
calculation, so it has to be compensated for.
* Test network chain tip height estimation
Generate pairs of block heights and check that it's possible to estimate
the larger height from the smaller height and a displaced time
difference.
* Support large block heights
* Document consensus rules referring to expiry heights
* Refactor the docs
* Apply suggestions from code review
Co-authored-by: teor <teor@riseup.net>
* Fix the formatting of an error message
* refactor: Simplify coinbase expiry code so the consensus rule is clear (#3408)
* Fix some outdated TODO comments
* refactor(coinbase expiry): Simplify the code so consensus rule is clear
* Fix the formatting of an error message
* Remove a redundant comment
Co-authored-by: Marek <mail@marek.onl>
Co-authored-by: Marek <mail@marek.onl>
* Check the max expiry height at parse time
* Test that 2^31 - 1 is the last valid height
* Add tests for nExpiryHeight
* Add tests for expiry heights of V4 transactions
* Add tests for V5 transactions
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* document the `header` field
* document the `nVersionGroupId` field
* document the `nConsensusBranchId` field
* document the `lock_time` field
* document the `nExpiryHeight` field (and some missing `lock_time`)
* add missing note to `header` field in serialization
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* feat(network): create an API for registering missing inventory, but don't use it yet
* feat(constraint): implement AtLeastOne::iter_mut()
* refactor(network): add InventoryStatus::marker() method to remove associated data
* fix(network): prefer current inventory, and missing inventory statuses
* fix(network): if an inventory rotation is missed, delay future rotations
* fix(network): don't immediately rotate a new empty inventory registry
* fix(network): assert that only expected inventory variants are stored in the registry
* test(network): add a basic empty inventory registry test
Also adds an inventory registry update future,
which makes it easier to call from an async context.
* refactor(network): add a convenience API for new InventoryChanges
* feat(network): improve inventory registry logging and metrics
* test(network): make sure advertised and missing inventory is correctly registered
* test(network): check that missing inventory is preferred over advertised
* test(network): check that current inventory is preferred over previous
* test(network): check peer set routes inv requests to advertised peers
* refactor(network): make the InventoryChange API more flexible
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Add all_previous_outputs; load UTXOs in transaction verifier
* Remove UTXO loading and returning from script.rs
* Don't pass state service to script verifier
* Remove output from is_valid()
* Refactor loading UTXOs to separate function
* Pass all_previous_output to sighash
* Apply suggestions from code review
Co-authored-by: teor <teor@riseup.net>
* Create AwaitUtxo only when needed; formatting
* Add comments about output vectors in tests
* Change sighash() to receive reference and avoid cloning
* Expand comments
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* lint: enable more clippy checks for bug-prone code
* fix(lint): stop denying lints, to avoid being excluded from Crater
Also categorise lints.
* lint: add some lints to the TODO list
* refactor(arithmetic): partial fixes for some integer arithmetic lints
* Document some weird lint behaviour
* Updating zebra-test to v1.0.0-beta.4
* Updating tower-fallback to v0.2.16
* Updating tower-batch to v0.2.20
* Updating zebra-chain to v1.0.0-beta.4
* Updating zebra-script to v1.0.0-beta.4
* Updating zebra-network to v1.0.0-beta.4
* Updating zebra-state to v1.0.0-beta.4
* Updating zebra-consensus to v1.0.0-beta.4
* Updating zebra-utils to v1.0.0-beta.4
* Updating zebrad to v1.0.0-beta.4
* Update Cargo.lock with updated crate versions
* Add section for 1.0.0-beta.4 in the CHANGELOG
* Update CHANGELOG.md
Co-authored-by: teor <teor@riseup.net>
* Update README.md
Co-authored-by: teor <teor@riseup.net>
* Update book/src/user/install.md
Co-authored-by: teor <teor@riseup.net>
* Update release description to mention Rust 2021
Update the changelog to mention that all crates now use Rust 2021
Edition.
* Elaborate on Section 3.6 documentation entry
Add the title of the section and mention that it's a section of the
Zcash protocol specification.
* Make changelog entries consistent
Use the same format for entries related to consensus rule documentation.
Co-authored-by: Marek <mail@marek.onl>
* Update README about validated consensus rules
Zebra now validates all documented consensus rules.
* Add changelog entry for newly merged PR
Describe the security fix in the changelog.
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Marek <mail@marek.onl>
The 2021 edition activates the v2 cargo resolver.
This broke implicit feature resolution,
but only when `zebra-chain`'s dev or bench targets were compiled by themselves.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Move standard lints into .cargo/config.toml
* Ignore "wrong self convention" in a futures-based trait
This lint might only trigger on beta or nightly at the moment.
* Warn if future incompatibile code is added to Zebra
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Refactor so that RetryLimit::Future is std::marker::Sync
* Make the syncer future std::marker::Send by spawning tips futures
* Download synced blocks in chain order, not HashSet order
* Improve MockService failure messages
* Add closure-based responses to the MockService API
* Move MockChainTip to zebra-chain
* Add a MockChainTipSender type alias
* Support MockChainTip in ChainSync and its downloader
* Add syncer tests for obtain tips, extend tips, and wrong block hashes
* Add block too high tests for obtain tips and extend tips
* Add syncer tests for duplicate FindBlocks response hashes
* Allow longer request delays for mocked services in syncer tests
* Ensure that sapling::keys::TransmissionKey jubjub point is always in the prime order group
* Adjust TransmissionKey check; add AuthorizingKey check
* Move ValueCommitment small order check to deserialization
* Apply suggestions from code review
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
* Use is_torsion_free() instead of is_identity() and is_prime_order()
* Add EphemeralPublicKey small order check on instantiation; remove old checks
* Use VerificationKey instead of VerificationKeyBytes; fix tests
* Use ValidatingKey instead of VerificationKeyBytes for rk
* Reject identity when creating an Orchard EphemeralPublicKey
* Make documentation more consistent, use generator in tests
* s/JubJub/Jubjub/
* Fix zebra-consensus tests (insert_fake_orchard_shielded_data)
* Create NotSmallOrderValueCommitment, since intermediate values can be the identity
* Clarify documentation
* rustdoc
* Tidy rustdoc
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
Co-authored-by: Pili Guerra <mpguerra@users.noreply.github.com>
* Create a strategy for block heights after Sapling
Provides an arbitrary network (mainnet or testnet) and a block height
between the Sapling activation height on that network and the maximum
block height.
* Create a helper function to select block heights
Allows generating block heights inside a range using a scale factor
between 0 and 1.
* Allow specifying the outpoint index for mock UTXOs
Avoid creating multiple transparent transfers in the same transaction
with the same source UTXO, which would lead to a double spend.
* Create helper function to mock multiple transfers
Given relative block height scale factors, create a mock transparent
transfer for each one of them.
Also add a constant that serves as a guideline for the maximum number of
transparent transfers to mock.
* Create helper function to sanitize tx. version
Make sure the arbitrary transaction version is valid for the network
(testnet or mainnet) at the specified block height.
* Create `mock_transparent_transaction` helper func.
Creates a V4 or V5 mock transaction that only includes transparent
inputs and outputs.
* Create helper function for transaction validation
Performs the actual tested action of verifying a transaction. It sets up
the verifier and uses it to obtain the verification result.
* Test if zero lock time means unlocked
Generate arbitrary transactions with zero lock time, and check that they
are accepted by the transaction verifier.
* Allow changing the sequence number of an input
Add a setter method for a `transparent::Input`'s sequence number. This
setter is only available for testing.
* Test if sequence numbers can disable lock time
Create arbitrary transactions and set the sequence numbers of all of its
inputs to `u32::MAX` to see if that disables the lock time and the
transactions are accepted by the verifier.
* Test block height lock times
Make sure that the transaction verifier rejects transactions that are
still locked at a certain block height.
* Test block time lock times
Test that the transaction verifier rejects a transaction that is
validated at a block time that's before the transaction's lock time.
* Test unlocking by block height
Test that transactions unlocked at an earlier block height are accepted
by the transaction verifier.
* Test transactions unlocked by the block time
Test that transactions that were unlocked at a previous block time are
accepted by the transaction verifier.
* Fix an incorrect method comment
Co-authored-by: teor <teor@riseup.net>
* Tweak crawler timings so peers are more likely to be available
* Tweak min peer connection interval so we try all peers
* Let other tasks run between fanouts, so we're more likely to choose different peers
* Let other tasks run between retries, so we're more likely to choose different peers
* Let other tasks run after peer crawler DemandDrop
This makes it more likely that peers will become ready.
* Integrate JoinSplit verifier with transaction verifier
* Add test with malformed Groth16 Output proof
* Use TryFrom instead of From in ItemWrapper to correctly propagate malformed proof errors
* Simplify by removing ItemWrapper and directly TryFrom into Item
* Fix existing tests to work with JoinSplit validation
* Apply suggestions from code review
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
Co-authored-by: Pili Guerra <mpguerra@users.noreply.github.com>
* Do prelim checking of Sprout anchors in non-finalized state
Does not check intra-transaction interstitial states yet
* Populate sprout anchors to allow other state tests to pass
* Preliminary interstitial sprout note commitment tree anchor checks implementation
* Make sure only prior anchors are checked in the same transaction
* Add tests
* Refactor a comment
* Refactor rustdoc
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
* Use the first `JoinSplit`s from mainnet
* Print debug messages
* Use correct blocks for the tests
Co-authored-by: Marek <mail@marek.onl>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
* fix parse_coinbase_height()
* move tests and create test for parse_coinbase_height()
* add a coinbase height round trip prop test
* fix range
Co-authored-by: teor <teor@riseup.net>
* extend examples in test
* add more round trip testing
* extend the range of test
Co-authored-by: teor <teor@riseup.net>
* add test for single byte
Co-authored-by: teor <teor@riseup.net>
* Stop checking the entire AddressBook for each connection attempt
* Stop redundant peer time checks within the address book
* Stop calling `Instant::now` 3 times for each address book update
* Only get the time once each time an address book method is called
* Update outdated comment
* Use an OrderedMap to efficiently store address book peers
* Add address book order tests
Zebra's latest beta continues implementing zero-knowledge proof and note commitment tree validation. In this release, we have finished implementing transaction header, transaction amount, and Zebra-specific NU5 validation. (NU5 mainnet validation is waiting on an `orchard` crate update, and some consensus parameter updates.)
We also fix a number of security issues that could pose a local denial of service risk, or make it easier for an attacker to make a node follow a false chain.
As of this release, Zebra will automatically download and cache the Sprout and Sapling Groth16 circuit parameters. The cache uses around 1 GB of disk space. These cached parameters are shared across all Zebra and `zcashd` instances run by the same user.
See CHANGELOG.md for the full list of changes in this release.
* Add Transaction::sprout_joinsplits()
* Add Anchor variants to ValidateContextError
* Make Chain anchor collections pub(crate)
* tracing::instrument several methods in state
* Add contains_*_anchors methods to FinalizedState
* Add check::anchors module and function
* Verify that anchors_refer_to_earlier_treestates in when updating chains in non-finalized state
* Update zebra-state/src/service/check/anchors.rs
Co-authored-by: teor <teor@riseup.net>
* Add anchors() to sapling::ShieldedData
* Add sapling_anchors() to Transaction
* Use Transaction::sapling_anchors() in the anchors_refer_to_earlier_treestates() check
* Whoops, itertools
* Add a comment for improvement
Co-authored-by: teor <teor@riseup.net>
* Add & use a cfg(test) method on FinalizedState to prep test state with anchors to allow other tests to pass contextual checks
* Allow test nullifier checks to pass by populating anchor sets, allowing test anchor checks to pass
* Add mainnet block 419202 and its sapling note commitment tree root to test vectors
* Test sapling anchor verification using the first few Sapling blocks data
* Correct comment
* assert_eq instead of assert(bool)
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
* Update zebra-state/src/service/non_finalized_state.rs
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Marek <mail@marek.onl>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
Marek
teor
Conrado Gouvea
Alfredo Garcia
Janito Vaqueiro Ferreira Filho
Deirdre Connolly
dependabot[bot]
Deirdre Connolly