fa79a881ce refactor: P2P transport without serialize version and type (MarcoFalke)
fa9b5f4fe3 refactor: NetMsg::Make() without nVersion (MarcoFalke)
66669da4a5 Remove unused Make() overload in netmessagemaker.h (MarcoFalke)
fa0ed07941 refactor: VectorWriter without nVersion (MarcoFalke)
Pull request description:
Now that the serialize framework ignores the serialize version and serialize type, everything related to it can be removed from the code.
This is the first step, removing dead code from the P2P stack. A different pull will remove it from the wallet and other parts.
ACKs for top commit:
ajtowns:
reACK fa79a881ce
Tree-SHA512: 785b413580d980f51f0d4f70ea5e0a99ce14cd12cb065393de2f5254891be94a14f4266110c8b87bd2dbc37467676655bce13bdb295ab139749fcd8b61bd5110
This should fix the bug reported in
https://github.com/bitcoin/bitcoin/pull/28246#discussion_r1371640502,
which caused the GUI to not detect the destination type of recipients,
thus picking the wrong change destination type.
Also, add missing lifetimebound attribute to a getter method.
fac29a0ab1 Remove SER_GETHASH, hard-code client version in CKeyPool serialize (MarcoFalke)
fa72f09d6f Remove CHashWriter type (MarcoFalke)
fa4a9c0f43 Remove unused GetType() from OverrideStream, CVectorWriter, SpanReader (MarcoFalke)
Pull request description:
Removes a bunch of redundant, dead or duplicate code.
Uses the idea from and finishes the idea https://github.com/bitcoin/bitcoin/pull/28428 by theuni
ACKs for top commit:
ajtowns:
ACK fac29a0ab1
kevkevinpal:
added one nit but otherwise ACK [fac29a0](fac29a0ab1)
Tree-SHA512: cc805e2f38e73869a6691fdb5da09fa48524506b87fc93f05d32c336ad3033425a2d7608e317decd3141fde3f084403b8de280396c0c39132336fe0f7510af9e
This removes unused includes, primitives/block found manually, and the
others by iwyu:
blockfilter.h should remove these lines:
- #include <serialize.h> // lines 16-16
- #include <undo.h> // lines 18-18
CTxDestination is really our internal representation of an address and
doesn't really have anything to do with standard script types, so move
them to their own file.
and drop the util/random dependency on util/setup_common.
This improves code separation and avoids creating a circular dependency if
setup_common needs to call the util/random functions.
The wallet tests and benchmarks both had helper functions for loading
and unloading the wallet for the test that were almost identical.
These functions are consolidated and reused.
33e2b82a4f wallet, bench: Remove unused database options from WalletBenchLoading (Andrew Chow)
80ace042d8 tests: Modify records directly in wallet ckey loading test (Andrew Chow)
b3bb17d5d0 tests: Update DuplicateMockDatabase for MockableDatabase (Andrew Chow)
f0eecf5e40 scripted-diff: Replace CreateMockWalletDB with CreateMockableWalletDB (Andrew Chow)
075962bc25 wallet, tests: Include wallet/test/util.h (Andrew Chow)
14aa4cb1e4 wallet: Move DummyDatabase to salvage (Andrew Chow)
f67a385556 wallet, tests: Replace usage of dummy db with mockable db (Andrew Chow)
33c6245ac1 Introduce MockableDatabase for wallet unit tests (Andrew Chow)
Pull request description:
For the wallet's unit tests, we currently use either `DummyDatabase` or memory-only versions of either BDB or SQLite. The tests that use `DummyDatabase` just need a `WalletDatabase` so that the `CWallet` can be constructed, while the tests using the memory-only databases just need a backing data store. There is also a `FailDatabase` that is similar to `DummyDatabase` except it fails be default or can have a configured return value. Having all of these different database types can make it difficult to write tests, particularly tests that work when either BDB or SQLite is disabled.
This PR unifies all of these different unit test database classes into a single `MockableDatabase`. Like `DummyDatabase`, most functions do nothing and just return true. Like `FailDatabase`, the return value of some functions can be configured on the fly to test various failure cases. Like the memory-only databases, records can actually be written to the `MockableDatabase` and be retrieved later, but all of this is still held in memory. Using `MockableDatabase` completely removes the need for having BDB or SQLite backed wallets in the unit tests for the tests that are not actually testing specific database behaviors.
Because `MockableDatabase`s can be created by each unit test, we can also control what records are stored in the database. Records can be added and removed externally from the typical database modification functions. This will give us greater ability to test failure conditions, particularly those involving corrupted records.
Possible alternative to #26644
ACKs for top commit:
furszy:
ACK 33e2b82
TheCharlatan:
ACK 33e2b82a4f
Tree-SHA512: c2b09eff9728d063d2d4aea28a0f0e64e40b76483e75dc53f08667df23bd25834d52656cd4eafb02e552db0b9e619cfdb1b1c65b26b5436ee2c971d804768bcc
This is a commit in preparation for the next few commits. The functions
are moved to methods to avoid their re-declaration for the purpose of
passing in BlockManager options.
The functions that were now moved into the BlockManager should no longer
use the params as an argument, but instead use the member variable.
In the moved ReadBlockFromDisk and UndoReadFromDisk, change
the function signature to accept a reference to a CBlockIndex instead of
a raw pointer. The pointer is expected to be non-null, so reflect that
in the type.
To allow for the move of functions to BlockManager methods all call
sites require an instantiated BlockManager, or a callback to one.
Since we have a mockable wallet database, we don't really need to be
using BDB or SQLite's in-memory database capabilities. It doesn't really
help us to be using those as we aren't doing anything that requires one
type of db over the other, and will just prefer SQLite if it's
available.
MockableDatabase is suitable for these uses, so use
CreateMockableWalletDatabase to use that.
-BEGIN VERIFY SCRIPT-
sed -i "s/CreateMockWalletDatabase(options)/CreateMockableWalletDatabase()/" $(git grep -l "CreateMockWalletDatabase(options)" -- ":(exclude)src/wallet/walletdb.*")
sed -i "s/CreateMockWalletDatabase/CreateMockableWalletDatabase/" $(git grep -l "CreateMockWalletDatabase" -- ":(exclude)src/wallet/walletdb.*")
-END VERIFY SCRIPT-
MockableDatabase is a WalletDatabase that allows us to interact with the
records to change them independently from the wallet, as well as
changing the return values from within the tests. This will give us
greater flexibility in testing the wallet.
This is cleanup that doesn't change external behavior.
- Removes awkward `StringMap` intermediate representation
- Simplifies CWallet code, deals with used address and received request
serialization in walletdb.cpp
- Adds test coverage and documentation
- Reduces memory usage
This PR doesn't change externally observable behavior. Internally, only change
in behavior is that EraseDestData deletes directly from database because the
`StringMap` is gone. This is more direct and efficient because it uses a single
btree lookup and scan instead of multiple lookups
Motivation for this cleanup is making changes like #18550, #18192, #13756
easier to reason about and less likely to result in unintended behavior and
bugs
Co-authored-by: furszy <matiasfurszyfer@protonmail.com>
The previous behavior for getAvailableBalance when coin control
has selected coins was to return the sum of them. Instead, we
are currently returning the wallet's available total balance minus
the selected coins total amount.
This turns into a GUI-only issue for the "use available balance"
button when the user manually select coins in the send screen.
Reason:
We missed to update the GetAvailableBalance function to include
the coin control selected coins on #25685.
Context:
Since #25685 we skip the selected coins inside `AvailableCoins`,
the reason is that there is no need to traverse the wallet's
txes map just to get coins that can directly be fetched by
their id.
4aebd832a4 db: Change DatabaseCursor::Next to return status enum (Andrew Chow)
d79e8dcf29 wallet: Have cursor users use DatabaseCursor directly (Andrew Chow)
7a198bba0a wallet: Introduce DatabaseCursor RAII class for managing cursor (Andrew Chow)
69efbc011b Move SafeDbt out of BerkeleyBatch (Andrew Chow)
Pull request description:
Instead of having database cursors be tied to a particular `DatabaseBatch` object and requiring its setup and teardown be separate functions in that batch, we can have cursors be separate RAII classes. This makes it easier to create and destroy cursors as well as having cursors that have slightly different behaviors.
Additionally, since reading data from a cursor is a tri-state, this PR changes the return value of the `Next` function (formerly `ReadAtCursor`) to return an Enum rather than the current system of 2 booleans. This greatly simplifies and unifies the code that deals with cursors as now there is no confusion as to what the function returns when there are no records left to be read.
Extracted from #24914
ACKs for top commit:
furszy:
diff ACK 4aebd83
theStack:
Code-review ACK 4aebd832a4
Tree-SHA512: 5d0be56a18de5b08c777dd5a73ba5a6ef1e696fdb07d1dca952a88ded07887b7c5c04342f9a76feb2f6fe24a45dc31f094f1f5d9500e6bdf4a44f4edb66dcaa1
f2fc03ec85 refactor: use braced init for integer constants instead of c style casts (Pasta)
Pull request description:
See https://github.com/bitcoin/bitcoin/pull/23810 for more context. This is broken out from that PR, as it is less breaking, and should be trivial to review and merge.
EDIT: Long term, the intention is to remove all C-style casts, as they can dangerously introduce reinterpret_casts. This is one step which removes a number of trivially removable C-style casts
ACKs for top commit:
aureleoules:
ACK f2fc03ec85
Tree-SHA512: 2fd11b92c9147e3f970ec3e130e3b3dce70e707ff02950a8c697d4b111ddcbbfa16915393db20cfc8f384bc76f13241c9b994a187987fcecd16a61f8cc0af14c
55696a0ac3 wallet: remove `mempool_sequence` from `transactionRemovedFromMempool` (w0xlt)
bf19069c53 wallet: remove `mempool_sequence` from `transactionAddedToMempool` (w0xlt)
Pull request description:
This PR removes `mempool_sequence` from `transactionRemovedFromMempool` and `transactionAddedToMempool`.
`mempool_sequence` is not used in these methods, only in ZMQ notifications.
ACKs for top commit:
instagibbs:
ACK 55696a0ac3
Tree-SHA512: 621e89230bcb6edfed83e2758601a2b093822fc2dc4e9bfb00487e340f2bc4c5ac3bf6df3ca00b7fe55bb3df15858820f2bf698f403d2e48b915dd9eb47b63e0
9622fe64b8 test: move coins result test to wallet_tests.cpp (furszy)
f69347d058 test: extend and simplify availablecoins_tests (furszy)
212ccdf2c2 wallet: AvailableCoins, add arg to include/skip locked coins (furszy)
Pull request description:
Negative PR with extended test coverage :).
1) Cleaned duplicated code and added coverage for the 'AvailableCoins' incremental result.
2) The class `AvailableCoinsTestingSetup` inside `availablecoins_tests.cpp` is a plain copy
of `ListCoinsTestingSetup` that is inside `wallet_tests.cpp`.
So, deleted the file and moved the `BasicOutputTypesTest` test case to `wallet_tests.cpp`.
3) Added arg to include/skip locked coins from the `AvailableCoins` result. This is needed for point (1) as otherwise the wallet will spend the coins that we recently created due its closeness to the recipient amount.
Note: this last point comes from #25659 where I'm using the same functionality to clean/speedup another flow as well.
ACKs for top commit:
achow101:
ACK 9622fe64b8
theStack:
ACK 9622fe64b8
aureleoules:
reACK 9622fe64b8, nice cleanup!
Tree-SHA512: 1ed9133120bfe8815455d1ad317bb0ff96e11a0cc34ee8098716ab9b001749168fa649212b2fa14b330c1686cb1f29039ff1f88ae306db68881b0428c038f388
Next()'s result is a tri-state - failed, more to go, complete. Replace
the way that this is returned with an enum with values FAIL, MORE, and
DONE rather than with two booleans.
Instead of having DatabaseBatch deal with opening and closing database
cursors, have a separate RAII class that deals with those.
For now, DatabaseBatch manages DatabaseCursor, but this will change
later.
8cd21bb279 refactor: improve readability for AttemptSelection (josibake)
f47ff71761 test: only run test for descriptor wallets (josibake)
0760ce0b9e test: add missing BOOST_ASSERT (josibake)
db09aec937 wallet: switch to new shuffle, erase, push_back (josibake)
b6b50b0f2b scripted-diff: Uppercase function names (josibake)
3f27a2adce refactor: add new helper methods (josibake)
f5649db9d5 refactor: add UNKNOWN OutputType (josibake)
Pull request description:
This PR is to address follow-ups for #24584, specifically:
* Remove redundant, hard-to-read code by adding a new `OutputType` and adding shuffle, erase, and push_back methods for `CoinsResult`
* Add missing `BOOST_ASSERT` to unit test
* Ensure functional test only runs if using descriptor wallets
* Improve readability of `AttemptSelection` by removing triple-nested if statement
Note for reviewers: commit `refactor: add new helper methods` should throw an "unused function warning"; the function is used in the next commit. Also, commit `wallet: switch to new shuffle, erase, push_back` will fail to compile, but this is fixed in the next commit with a scripted-diff. the commits are separate like this (code change then scripted-diff) to improve legibility.
ACKs for top commit:
achow101:
ACK 8cd21bb279
aureleoules:
ACK 8cd21bb279.
LarryRuane:
Concept, code review ACK 8cd21bb279
furszy:
utACK 8cd21bb2. Left a small, non-blocking, comment.
Tree-SHA512: a1bbc5962833e3df4f01a4895d8bd748cc4c608c3f296fd94e8afd8797b8d2e94e7bd44d598bd76fa5c9f5536864f396fcd097348fa0bb190a49a86b0917d60e
This is a refactor, putting the burden to think about thread safety to
the caller. Otherwise, there is a risk that the caller will assume
thread safety where none exists, as is evident in the previous two
commits.
bc886fcb31 Change mapWallet to be a std::unordered_map (Andrew Chow)
272356024d Change getWalletTxs to return a set instead of a vector (Andrew Chow)
97532867cf Change mapTxSpends to be a std::unordered_multimap (Andrew Chow)
1f798fe85b wallet: Cache SigningProviders (Andrew Chow)
8a105ecd1a wallet: Use CalculateMaximumSignedInputSize to indicate solvability (Andrew Chow)
Pull request description:
While running my coin selection simulations, I noticed that towards the end of the simulation, the wallet would become slow to make new transactions. The wallet generally performs much more slowly when there are a large number of transactions and/or a large number of keys. The improvements here are focused on wallets with a large number of transactions as that is what the simulations produce.
Most of the slowdown I observed was due to `DescriptorScriptPubKeyMan::GetSigningProvider` re-deriving keys every time it is called. To avoid this, it will now cache the `SigningProvider` produced so that repeatedly fetching the `SigningProvider` for the same script will not result in the same key being derived over and over. This has a side effect of making the function non-const, which makes a lot of other functions non-const as well. This helps with wallets with lots of address reuse (as my coin selection simulations are), but not if addresses are not reused as keys will end up needing to be derived the first time `GetSigningProvider` is called for a script.
The `GetSigningProvider` problem was also exacerbated by unnecessarily fetching a `SigningProvider` for the same script multiple times. A `SigningProvider` is retrieved to be used inside of `IsSolvable`. A few lines later, we use `GetTxSpendSize` which fetches a `SigningProvider` and then calls `CalculateMaximumSignedInputSize`. We can avoid a second call to `GetSigningProvider` by using `CalculateMaximumSignedInputSize` directly with the `SigningProvider` already retrieved for `IsSolvable`.
There is an additional slowdown where `ProduceSignature` with a dummy signer is called twice for each output. The first time is `IsSolvable` checks that `ProduceSignature` succeeds, thereby informing whether we have solving data. The second is `CalculateMaximumSignedInputSize` which returns -1 if `ProduceSignature` fails, and returns the input size otherwise. We can reduce this to one call of `ProduceSignature` by using `CalculateMaximumSignedInputSize`'s result to set `solvable`.
Lastly, a lot of time is spent looking in `mapWallet` and `mapTxSpends` to determine whether an output is already spent. The performance of these lookups is slightly improved by changing those maps to use `std::unordered_map` and `std::unordered_multimap` respectively.
ACKs for top commit:
Xekyo:
ACK bc886fcb31
furszy:
diff re-reACK bc886fcb
Tree-SHA512: fd710fe1224ef67d2bb83d6ac9e7428d9f76a67f14085915f9d80e1a492d2c51cb912edfcaad1db11c2edf8d2d97eb7ddd95bfb364587fb1f143490fd72c9ec1
Rename `BResult` class to `util::Result` and update the class interface to be
more compatible with `std::optional` and with a full-featured result class
implemented in https://github.com/bitcoin/bitcoin/pull/25665. Motivation for
this change is to update existing `BResult` usages now so they don't have to
change later when more features are added in #25665.
This change makes the following improvements originally implemented in #25665:
- More explicit API. Drops potentially misleading `BResult` constructor that
treats any bilingual string argument as an error. Adds `util::Error`
constructor so it is never ambiguous when a result is being assigned an error
or non-error value.
- Better type compatibility. Supports `util::Result<bilingual_str>` return
values to hold translated messages which are not errors.
- More standard and consistent API. `util::Result` supports most of the same
operators and methods as `std::optional`. `BResult` had a less familiar
interface with `HasRes`/`GetObj`/`ReleaseObj` methods. The Result/Res/Obj
naming was also not internally consistent.
- Better code organization. Puts `src/util/` code in the `util::` namespace so
naming reflects code organization and it is obvious where the class is coming
from. Drops "B" from name because it is undocumented what it stands for
(bilingual?)
- Has unit tests.
9e04cfaa76 test: add coverage for wallet inconsistent state during sync (furszy)
77de5c693f wallet: guard and alert about a wallet invalid state during chain sync (furszy)
Pull request description:
Follow-up work to my comment in #25239.
Guarding and alerting the user about a wallet invalid state during chain synchronization.
#### Explanation
if the `AddToWallet` tx write fails, the method returns a wtx `nullptr` without removing the recently added transaction from the wallet's map.
Which makes that `AddToWalletIfInvolvingMe` return false (even when the tx is on the wallet's map already), --> which makes `SyncTransaction` skip the `MarkInputsDirty` call --> which leads to a wallet invalid state where the inputs of this new transaction are not marked dirty, while the transaction that spends them still exist on the in-memory wallet tx map.
Plus, as we only store the arriving transaction inside `AddToWalletIfInvolvingMe` when we synchronize/scan block/s from the chain and nowhere else, it makes sense to treat the transaction db write error as a runtime error to notify the user about the problem. Otherwise, the user will lose all the not stored transactions after a wallet shutdown (without be able to recover them automatically on the next startup because the chain sync would be above the block where the txs arrived).
Note:
On purpose, the first commit adds test coverage for it. Showing how the wallet can end up in an invalid state. The second commit corrects it with the proposed solution.
ACKs for top commit:
achow101:
re-ACK 9e04cfaa76
jonatack:
ACK 9e04cfaa76
Tree-SHA512: 81f765eca40547d7764833d8ccfae686b67c7728c84271bc00dc51272de643dafc270014079dcc9727b47577ba67b340aeb5f981588b54e69a06abea6958aa96
71d1d13627 test: add unit test for AvailableCoins (josibake)
da03cb41a4 test: functional test for new coin selection logic (josibake)
438e04845b wallet: run coin selection by `OutputType` (josibake)
77b0707206 refactor: use CoinsResult struct in SelectCoins (josibake)
2e67291ca3 refactor: store by OutputType in CoinsResult (josibake)
Pull request description:
# Concept
Following https://github.com/bitcoin/bitcoin/pull/23789, Bitcoin Core wallet will now generate a change address that matches the payment address type. This improves privacy by not revealing which of the outputs is the change at the time of the transaction in scenarios where the input address types differ from the payment address type. However, information about the change can be leaked in a later transaction. This proposal attempts to address that concern.
## Leaking information in a later transaction
Consider the following scenario:
1. Alice has a wallet with bech32 type UTXOs and pays Bob, who gives her a P2SH address
2. Alice's wallet generates a P2SH change output, preserving her privacy in `txid: a`
3. Alice then pays Carol, who gives her a bech32 address
4. Alice's wallet combines the P2SH UTXO with a bech32 UTXO and `txid: b` has two bech32 outputs
From a chain analysis perspective, it is reasonable to infer that the P2SH input in `txid: b` was the change from `txid: a`. To avoid leaking information in this scenario, Alice's wallet should avoid picking the P2SH output and instead fund the transaction with only bech32 Outputs. If the payment to Carol can be funded with just the P2SH output, it should be preferred over the bech32 outputs as this will convert the P2SH UTXO to bech32 UTXOs via the payment and change outputs of the new transaction.
**TLDR;** Avoid mixing output types, spend non-default `OutputTypes` when it is economical to do so.
# Approach
`AvailableCoins` now populates a struct, which makes it easier to access coins by `OutputType`. Coin selection tries to find a funding solution by each output type and chooses the most economical by waste metric. If a solution can't be found without mixing, coin selection runs over the entire wallet, allowing mixing, which is the same as the current behavior.
I've also added a functional test (`test/functional/wallet_avoid_mixing_output_types.py`) and unit test (`src/wallet/test/availablecoins_tests.cpp`.
ACKs for top commit:
achow101:
re-ACK 71d1d13627
aureleoules:
ACK 71d1d13627.
Xekyo:
reACK 71d1d13627 via `git range-diff master 6530d19 71d1d13`
LarryRuane:
ACK 71d1d13627
Tree-SHA512: 2e0716efdae5adf5479446fabc731ae81d595131d3b8bade98b64ba323d0e0c6d964a67f8c14c89c428998bda47993fa924f3cfca1529e2bd49eaa4e31b7e426
fanquake
