92885c4f69 test: Test for ApproximateBestSubset edge case with too little fees (Andrew Chow)
d9262324e8 wallet: Assert that enough was selected to cover the fees (Andrew Chow)
2de222c401 wallet: Use GetSelectionAmount for target value calculations (Andrew Chow)
Pull request description:
The `m_value` used for the target calculation in `ApproximateBestSubset` is incorrect, it should be `GetSelectionAmount`. This causes a bug that is only apparent when the minimum relay fee is set to be very high.
A test case is added for this, in addition to an assert in `CreateTransactionInternal` that would have also caught this issue if someone were able to hit the edge case.
Fixes#22670
ACKs for top commit:
instagibbs:
utACK 92885c4f69
Tree-SHA512: bd61fa61ffb60873e097737eebea3afe8a42296ba429de9038b3a4706763b34de9409de6cdbab21ff7f51f4787b503f840873182d9c4a1d6e12a54b017953547
When the fee is not subtracted from the outputs, the amount that has
been reserved for the fee (change_and_fee - change_amount) must be
enough to cover the fee that is needed. It would be a bug to not do so,
so use an assert to make this obvious if such a situation were to occur.
For target value calculations, GetSelectionAmount should be used, not
m_effective_value or m_value.
Specifically, ApproximateBestSubset mistakenly uses m_value when
calculating whether the target value has been met. This has been changed
to use GetSelectionAmount.
92993aa5cf Change SignTransaction's input_errors to use bilingual_str (Andrew Chow)
171366e89b Use bilingual_str for address fetching functions (Andrew Chow)
9571c69b51 Add bilingual_str::clear() (Andrew Chow)
Pull request description:
In a couple of places in the wallet, errors are `std::string`. In order for these errors to be translated, change them to use `bilingual_str`.
ACKs for top commit:
hebasto:
re-ACK 92993aa5cf, only rebased since my [previous](https://github.com/bitcoin/bitcoin/pull/22337#pullrequestreview-694542729) review, verified with
klementtan:
Code review ACK 92993aa5cf
meshcollider:
Code review ACK 92993aa5cf
Tree-SHA512: 5400e419dd87db8c49b67ed0964de2d44b58010a566ca246f2f0760ed9ef6a9b6f6df7a6adcb211b315b74c727bfe8c7d07eb5690b5922fa5828ceef4c83461f
fa6fd3dd6a wallet: Properly set fInMempool in mempool notifications (MarcoFalke)
Pull request description:
A wallet method (like bumping the fee) might have set `fInMempool` to false because the transaction was removed from the mempool (See commit fa4e088cba).
Avoid setting it back to true (incorrectly) in the validation interface background thread.
Fixes#22357
ACKs for top commit:
ryanofsky:
Code review ACK fa6fd3dd6a. Only change since last review is extending workaround to `transactionRemovedFromMempool`. Since we know this workaround is imperfect and the goal of this PR is mainly to fix CI errors, I would probably be inclined to limit the workaround to as few places as possible where we have seen actual failures, instead of adding the workaround to as many places as possible, where there is some chance it might trigger new failures. But since this workaround is so straightforward and almost looks like a real fix, probably it doesn't matter.
meshcollider:
utACK fa6fd3dd6a
Tree-SHA512: d690136a577f1f532aa1fee80d3f6600ff7fc61286fbf564a53d7938d5ae52d33f0dbb0fef8b8c041a4970fb424f0b9f1ee7ce791e0ff8354e0000ecc9e22b84
bb822a7af8 wallet, rpc: add listdescriptors private option (S3RK)
Pull request description:
Rationale: make it possible to backup your wallet with `listdescriptors` command
* The default behaviour is still to show public version
* For private version only the root xprv is returned
Example use-case:
```
> bitcoin-cli -regtest -named createwallet wallet_name=old descriptors=true
> bitcoin-cli -regtest -rpcwallet=old listdescriptors true | jq '.descriptors' > descriptors.txt
> bitcoin-cli -regtest -named createwallet wallet_name=new descriptors=true blank=true
> bitcoin-cli -regtest -rpcwallet=new importdescriptors "$(cat descriptors.txt)"
```
In case of watch-only wallet without private keys there will be following output:
```
error code: -4
error message:
Can't get descriptor string.
```
ACKs for top commit:
achow101:
re-ACK bb822a7af8
Rspigler:
tACK bb822a7af8
jonatack:
ACK bb822a7af8 per `git diff 2854ddc bb822a7`
prayank23:
tACK bb822a7af8
meshcollider:
Code review ACK bb822a7af8
Tree-SHA512: f6dddc72a74e5667071ccd77f8dce578382e8e29e7ed6a0834ac2e114a6d3918b59c2f194f4079b3259e13d9ba3b4f405619940c3ecb7a1a0344615aed47c43d
fe6dc76b7c wallet test: Add test for subtract fee from recipient behavior (Russell Yanofsky)
2565478c81 wallet test refactor: add CreateSyncedWallet function (Russell Yanofsky)
Pull request description:
This adds test coverage for wallet subtract from recipient behavior without changing it. Behavior seems to have changed recently in a minor way in #17331 without being noticed.
ACKs for top commit:
achow101:
ACK fe6dc76b7c
glozow:
ACK fe6dc76b7c
promag:
Code review ACK fe6dc76b7c.
Tree-SHA512: e00c5dfe467e4ccef5edb0dd4fff6c53f35a37828a4327bea2e166751e5ef971d519ffca7b8f735b12912bb4a547980626356bc1855981005aed1a6c2a57be0b
DEBUG_LOCKORDER expects cs_wallet, cs_main, and cs_KeyStore to be
acquired in that order. However dumpwallet would take these in the order
cs_wallet, cs_KeyStore, cs_main. So when configured with
`--enable-debug`, it is possible to hit the lock order assertion when
using dumpwallet.
To fix this, cs_wallet and cs_KeyStore are no longer locked at the same
time. Instead cs_wallet will be locked first. Then the functions which
lock cs_main will be run. Lastly cs_KeyStore will be locked afterwards.
This avoids the lock order issue.
Furthermore, since GetKeyBirthTimes (only used by dumpwallet) also uses
a function that locks cs_main, and itself also locks cs_KeyStore, the
same reordering is done here.
If a ScriptPubKeyMan does not implement Upgrade, then using upgraewallet
will fail unexpectedly. By changing the default to return true, then
this error can be avoided. This is still correct because a successful
upgrade can be that nothing happened.
6084d2caed wallet: do not spam about non-existent spk managers (S3RK)
Pull request description:
Avoid spam in logs during `loadwallet`, `listdescriptors` and probably other commands as well.
**`loadwallet` Before:**
```
2021-06-24T06:31:45Z init message: Loading wallet…
2021-06-24T06:31:45Z [desc] Wallet File Version = 169900
2021-06-24T06:31:45Z [desc] Keys: 0 plaintext, 0 encrypted, 0 w/ metadata, 0 total. Unknown wallet records: 0
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] Wallet completed loading in 197ms
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] setKeyPool.size() = 0
2021-06-24T06:31:45Z [desc] mapWallet.size() = 0
2021-06-24T06:31:45Z [desc] m_address_book.size() = 0
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] External scriptPubKey Manager for output type 2 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 0 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 1 does not exist
2021-06-24T06:31:45Z [desc] Internal scriptPubKey Manager for output type 2 does not exist
{
"name": "desc",
"warning": ""
}
```
**After:**
```
2021-06-24T06:26:58Z init message: Loading wallet…
2021-06-24T06:26:58Z [desc] Wallet File Version = 169900
2021-06-24T06:26:58Z [desc] Keys: 0 plaintext, 0 encrypted, 0 w/ metadata, 0 total. Unknown wallet records: 0
2021-06-24T06:26:58Z [desc] Wallet completed loading in 158ms
2021-06-24T06:26:58Z [desc] setKeyPool.size() = 0
2021-06-24T06:26:58Z [desc] mapWallet.size() = 0
2021-06-24T06:26:58Z [desc] m_address_book.size() = 0
{
"name": "desc",
"warning": ""
}
```
ACKs for top commit:
achow101:
ACK 6084d2caed
Tree-SHA512: c7d7345c3182a575db088fd731b7f6e428c42e4f3f2e10d5adb50bf74a2defe88768e65ebb91a08590be48cf766a5697e36fafa73f68ffe45e76a60600f072e2
In many places in ScriptPubKeyMan managing code, we assume that the
ScriptPubKeyMan being retrieved actually exists and is not a nullptr.
Thus removing a ScriptPubKeyMan requires erasing the object from the
map rather than setting it to a nullptr.
181181019c refactor: remove m_internal from DescriptorSPKman (S3RK)
Pull request description:
Rationale: improve consistency between `CWallet` and `DescriptorScriptPubKeyMan`; simplify `ScriptPubKeyMan` interface.
Descriptor in itself is neither internal or external. It's responsibility of a wallet to assign and manage descriptors for a specific purpose. Duplicating information about internalness of a descriptor could lead to inconsistencies and unexpected behaviour (for example misreporting keypool size).
ACKs for top commit:
instagibbs:
reACK 181181019c
achow101:
reACK 181181019c
Tree-SHA512: d5613b7f6795b290bfa0fd8cb0536de1714d0cf72cba402266bd06d550758ebad690b54fc0a336a1c7414b5814aa4a37c90a6ae89926474a97d30956d7e034ff
3efaf83c75 wallet: deactivate descriptor (S3RK)
6737d9655b test: wallet importdescriptors update existing (S3RK)
586f1d53d6 wallet: maintain SPK consistency on internal flag change (S3RK)
f1b7db1474 wallet: don't mute exceptions in importdescriptors (S3RK)
bf68ebc1cd wallet: allow to import same descriptor twice (S3RK)
Pull request description:
Rationale: allow updating existing descriptors with `importdescriptors` command.
Currently if you run same `importdescriptors` command twice with a descriptor containing private key you will get very confusing error — `Missing required fields`. What happens is that Wallet tries to write imported private key to the disk, but it exists already so we get `DB_KEYEXIST (-30995)` from BerkelyDB. Please note, that we set `DB_NOOVERWRITE` (I guess not to lose some keys accidentally). The exception is caught in `catch (...)` in rpcdump.cpp with a generic error.
With this PR if a descriptor is already present than we will update its activeness, internalness, label, range and next_index.
For the range only expansion is allowed (range start can only decrease, range end increase).
ACKs for top commit:
achow101:
re-ACK 3efaf83c75
meshcollider:
Code review ACK 3efaf83c75
jonatack:
Light ACK 3efaf83c75 per `git range-diff a000cb0 5d96704 3efaf83` and as a sanity check, re-debug-built on debian with gcc 10.2.1 and clang 11, ran wallet_importdescriptors.py
Tree-SHA512: 122c4b621d64ec8a3b625f3aed9f01a2b5cbaf2029ad0325b5ff38d67fff5cd35324335fabe2dd5169548b01b267c81be6ae0f5c834342f3d5f6eeed515c4843
e6cf0ed92d wallet, rpc: listdescriptors does not need unlocked (Andrew Chow)
3280704886 Pass in DescriptorCache to ToNormalizedString (Andrew Chow)
7a26ff10c2 Change DescriptorImpl::ToStringHelper to use an enum (Andrew Chow)
75530c93a8 Remove priv option for ToNormalizedString (Andrew Chow)
74fede3b8b wallet: Upgrade existing descriptor caches (Andrew Chow)
432ba9e543 wallet: Store last hardened xpub cache (Andrew Chow)
d87b544b83 descriptors: Cache last hardened xpub (Andrew Chow)
cacc391098 Move DescriptorCache writing to WalletBatch (Andrew Chow)
0b4c8ef75c Refactor Cache merging and writing (Andrew Chow)
976b53b085 Revert "Cache parent xpub inside of BIP32PubkeyProvider" (Andrew Chow)
Pull request description:
Currently fetching a normalized descriptor requires the wallet to be unlocked as it needs the private keys to derive the last hardened xpub. This is not very user friendly as normalized descriptors shouldn't require and don't involve the private keys except for derivation. We solve this problem by caching the last hardened xpub (which has to be derived at some point when generating the address pool).
However the last hardened xpub was not already being cached. We only cached the immediate parent xpub and derived child keys. For example, with a descriptor derivation path of `/84'/0'/0'/0/*`, the parent xpub that is cached is `m/84'/0'/0'/0`, and the child keys of `m/84'/0'/0'/0/i` (note that child keys would not be cached in this case). This parent xpub is not suitable for the normalized descriptor form as we want the key at `m/84'/0'/0'`. So this PR adds another field to `DescriptorCache` to cache the last hardened xpub so that we can use them for normalized descriptors.
Since `DescriptorCache` is changing, existing descriptor wallets need to be upgraded to use this new cache. The upgrade will occur in the background either at loading time (if the wallet is not encrypted) or at unlocking time in the same manner that `UpgradeKeyMetadata` operates. It will use a new wallet flag `WALLET_FLAG_LAST_HARDENED_XPUB_CACHED` to indicate whether the descriptor wallet has the last hardened xpub cache.
Lastly `listdescriptors` will not require the wallet to be locked and `getaddressinfo`'s `parent_desc` will always be output (assuming the upgrade has occurred).
ACKs for top commit:
fjahr:
tACK e6cf0ed92d
S3RK:
reACK e6cf0ed
jonatack:
Semi ACK e6cf0ed92d reviewed, debug-built and ran unit tests and some of the descriptor functional tests at each commit. I'm not very familiar with this code and it could be clearer to the uninitiated IMHO, so I'm not confident enough to give a full ACK. Various minor suggestions follow, most of them for readability, feel free to pick and choose.
meshcollider:
Code review + functional test run ACK e6cf0ed92d
Tree-SHA512: ac27aade8644525cd65bfcaf27ff32afb974085b1451faf4ff68c6671a690bd6a41d4f39a33cbf461ae0fbe85995c0a4c08dbd36171da1c1d2a1d00053ad298d
Descriptor in itself is neither internal or external.
It's responsibility of a wallet to assign and manage descriptors
for a specific purpose. Duplicating such information could lead to
inconsistencies and unexpected behaviour.
Instead of having a large blob of cache merging code in TopUp, refactor
this into DescriptorCache so that it can merge and provide a diff
(another DescriptorCache containing just the items that were added).
Then TopUp can just write everything that was in the diff.
754f134a50 wallet: Add error message to GetReservedDestination (Andrew Chow)
87a0e7a3b7 Disallow bech32m addresses for legacy wallet things (Andrew Chow)
6dbe4d1072 Use BECH32M for tr() desc, WitV1Taproot, and WitUnknown CTxDests (Andrew Chow)
699dfcd8ad Opportunistically use bech32m change addresses if available (Andrew Chow)
0262536c34 Add OutputType::BECH32M (Andrew Chow)
177c15d2f7 Limit LegacyScriptPubKeyMan address types (Andrew Chow)
Pull request description:
Currently bech32m addresses are classfied as bech32. Because bech32m is incompatible with bech32, we need to define a new `OutputType` for it so that it can be handled correctly. This PR adds `OutputType::BECH32M`, updates all of the relevant `OutputType` classifications, and handle requests for bech32m addresses. There is now a `bech32m` address type string that can be used.
* `tr()` descriptors now report their output type as `OutputType::BECH32M`. `WtinessV1Taproot` and `WitnessUnknown` are also classified as `OutputType::BECH32M`.
* Bech32m addresses are completely disabled for legacy wallets. They cannot be imported (explicitly disallowed in `importaddress` and `importmulti`), will not be created when getting all destinations for a pubkey, and will not be added with `addmultisigaddress`. Additional protections have been added to `LegacyScriptPubKeyMan` to disallow attempting to retrieve bech32m addresses.
* Since Taproot multisigs are not implemented yet, `createmultisig` will also disallow the bech32m address type.
* As Taproot is not yet active, `DescriptorScriptPubKeyMan` cannot and will not create a `tr()` descriptor. Protections have been added to make sure this cannot occur.
* The change address type detection algorithm has been updated to return `bech32m` when there is a segwit v1+ output script and the wallet has a bech32m `ScriptPubKeyMan`, falling back to bech32 if one is not available.
ACKs for top commit:
laanwj:
re-review ACK 754f134a50
Sjors:
re-utACK 754f134: only change is switching to `bech32m` in two `wallet_taproot.py` test cases.
fjahr:
re-ACK 754f134a50
jonatack:
ACK 754f134a50
Tree-SHA512: 6ea90867d3631d0d438e2b08ce6ed930f37d01323224661e8e38f183ea5ee2ab65b5891394a3612c7382a1aff907b457616c6725665a10c320174017b998ca9f
d637a9b397 Taproot descriptor inference (Pieter Wuille)
c7388e5ada Report address as solvable based on inferred descriptor (Pieter Wuille)
29e5dd1a5b consensus refactor: extract ComputeTapleafHash, ComputeTaprootMerkleRoot (Pieter Wuille)
Pull request description:
Includes:
* First commit from #21365, adding TaprootSpendData in SigningProvider
* A refactor to expose ComputeTapleafHash and ComputeTaprootMerkleRoot from script/interpreter
* A tiny change to make `getaddressinfo` report tr() descriptors as solvable (so that inferred descriptors are shown), despite not having signing code for them.
* Logic to infer the script tree back from TaprootSpendData, and then use that to infer descriptors.
ACKs for top commit:
achow101:
re-ACK d637a9b397
Sjors:
re-utACK d637a9b
meshcollider:
Code review ACK d637a9b397
Tree-SHA512: 5ab9b95da662382d8549004be4a1297a577d7caca6b068f875c7c9343723931d03fa9cbf133de11f83b74e4851490ce820fb80413c77b9e8495a5f812e505d86
Adds an error output parameter to all GetReservedDestination functions
so that callers can get the actual reason that a change address could
not be fetched. This more closely matches GetNewDestination. This allows
for more granular error messages, such as one that indicates that
bech32m addresses cannot be generated yet.
We don't want the legacy wallet to ever have bech32m addresses so don't
allow importing them. This includes addmultisigaddress as that is a
legacy wallet only RPC
Additionally, bech32m multisigs are not available yet, so disallow them
in createmultisig.
If a transaction as a segwit output, use a bech32m change address if
they are available. If not, fallback to bech32. If bech32 change
addresses are unavailable, fallback to the default address type.
Bech32m addresses need their own OutputType
We are not ready to create DescriptorScriptPubKeyMans which produce
bech32m addresses. So don't allow generating them.
458a345b05 Add support for SIGHASH_DEFAULT in RPCs, and make it default (Pieter Wuille)
c0f0c8eccb tests: check spending of P2TR (Pieter Wuille)
a2380127e9 Basic Taproot signing logic in script/sign.cpp (Pieter Wuille)
49487bc3b6 Make GetInputUTXO safer: verify non-witness UTXO match (Pieter Wuille)
fd3f6890f3 Construct and use PrecomputedTransactionData in PSBT signing (Pieter Wuille)
5cb6502ac5 Construct and use PrecomputedTransactionData in SignTransaction (Pieter Wuille)
5d2e22437b Don't nuke witness data when signing fails (Pieter Wuille)
ce9353164b Permit full precomputation in PrecomputedTransactionData (Pieter Wuille)
e841fb503d Add precomputed txdata support to MutableTransactionSignatureCreator (Pieter Wuille)
a91d532338 Add CKey::SignSchnorr function for BIP 340/341 signing (Pieter Wuille)
e77a2839b5 Use HandleMissingData also in CheckSchnorrSignature (Pieter Wuille)
dbb0ce9fbf Add TaprootSpendData data structure, equivalent to script map for P2[W]SH (Pieter Wuille)
Pull request description:
Builds on top of #22051, adding signing support after derivation support.
Nothing is changed in descriptor features. Signing works for key path and script path spending, through the normal sending functions, and PSBT-based RPCs. However, PSBT usability is rather low as no extensions have been defined to convey Taproot-specific information, so all script information must be known to the signing wallet.
ACKs for top commit:
achow101:
re-ACK 458a345b05
fjahr:
Code review ACK 458a345b05
Sjors:
ACK 458a345b05
Tree-SHA512: 30ed212cf7754763a4a81624ebc084c51727b8322711ac0b390369213c1a891d367ed8b123882ac08c99595320c11ec57ee42304ff22a69afdc3d1a0d55cc711
