3a9aba21a4 Split SetWalletFlags into Add/LoadWalletFlags (Andrew Chow)
d9cd095b59 Split SetActiveScriptPubKeyMan into Add/LoadActiveScriptPubKeyMan (Andrew Chow)
0122fbab4c Split SetHDChain into AddHDChain and LoadHDChain (Andrew Chow)
Pull request description:
`SetHDChaiin`, `SetActiveScriptPubKeyMan`, and `SetWalletFlags` have a `memonly` argument which is kind of confusing, as noted in https://github.com/bitcoin/bitcoin/pull/17681#discussion_r427633081. This PR replaces those functions with `Add*` and `Load*` variants so that they follow the pattern used elsewhere in the wallet.
`AddHDChain`, `AddActiveScriptPubKeyMan`, and `AddWalletFlags` both set their respective variables in `CWallet` and writes them to disk. These functions are used by the actions which modify the wallet such as `sethdseed`, `importdescriptors`, and creating a new wallet.
`LoadHDChain`, `LoadActiveScriptPubKeyMan`, and `LoadWalletFlags` just set the `CWallet` variables. These functions are used by `LoadWallet` when loading the wallet from disk.
ACKs for top commit:
jnewbery:
Code review ACK 3a9aba21a4
ryanofsky:
Code review ACK 3a9aba21a4. Only changes since last review tweaks making m_wallet_flags updates more safe
meshcollider:
utACK 3a9aba21a4
Tree-SHA512: 365aeaafc5ba42879c0eb797ec3beb29ab70e27f917dc880763f743420b3be6ddf797240996beed8a9ad70fb212c2590253c6b44c9dc244529c3939d9538983f
In FillPSBT, optionally report the number of inputs we successfully
signed, as an out parameter. If "sign" is false, instead report the
number of inputs for which GetSigningProvider does not return nullptr.
(This is a potentially overbroad estimate of inputs we could sign.)
71f016c6eb Remove old serialization primitives (Pieter Wuille)
92beff15d3 Convert LimitedString to formatter (Pieter Wuille)
ef17c03e07 Convert wallet to new serialization (Pieter Wuille)
65c589e45e Convert Qt to new serialization (Pieter Wuille)
Pull request description:
This is the final step 🥳 of the serialization improvements extracted from #10785.
It converts the LimitedString wrapper to a new-style formatter, and updates the wallet and Qt code to use the new serialization framework. Finally all remaining old primitives are removed.
ACKs for top commit:
jonatack:
ACK 71f016c6eb reviewed diff, builds/tests/re-fuzzed.
laanwj:
Code review ACK 71f016c6eb
Tree-SHA512: d952194bc73259f6510bd4ab1348a1febbbf9862af30f905991812fb0e1f23f15948cdb3fc662be54d648e8f6d95b11060055d2e7a8c2cb5bf008224870b1ea1
ca2a09640f Change SetType to SetInternal and remove m_address_type (Andrew Chow)
89b1ce1140 Remove unimplemented SetCrypted from DescriptorScriptPubKeyMan (Andrew Chow)
b9073c8f13 rpc: createwallet warning that descriptor wallets are experimental (Andrew Chow)
610030d95c docs: Add release notes for descriptor wallets (Andrew Chow)
Pull request description:
Some docs and cleanup following #16528.
* Added release notes to explain a bit of motivation for descriptor wallets, what was changed, and how users will be effected by it. Also mentions the caveats regarding multsigs and watchonly that we have discussed on IRC.
* Adds a warning to `createwallet` that descriptor wallets are experimental.
* Removed unused `SetCrypted` as suggestioned: https://github.com/bitcoin/bitcoin/pull/16528#discussion_r415300916
* Removed `m_address_type` as mentioned in https://github.com/bitcoin/bitcoin/pull/18782#issuecomment-620167077
ACKs for top commit:
Sjors:
tACK ca2a09640f
instagibbs:
utACK ca2a09640f
meshcollider:
utACK ca2a09640f
Tree-SHA512: 987188a912c191430e5d3f89bcef54ba6773692fc2d95b16a3ec11d9007ded210466ed980a3857e8b7196beef6422f07f9c85cc157f996c02d16f4dbde2e7b2a
1ed52fbb4d Remove IBD check in sethdseed (Andrew Chow)
b1810a145a Test that keys from inactive seeds are generated (Andrew Chow)
c93082ece4 Generate new keys for inactive seeds after marking used (Andrew Chow)
45f2f6a0e8 Determine inactive HD seeds from key metadata and track them in LegacyScriptPubKeyMan (Andrew Chow)
b59b4504ab have GenerateNewKey and DeriveNewChildKey take a CHDChain as an argument (Andrew Chow)
Pull request description:
Largely implements the suggestion from https://github.com/bitcoin/bitcoin/pull/17484#issuecomment-560845316.
After `sethdseed` is called, the CHDChain for the old seed is kept in the wallet. It is kept on the file as a new `inactivehdseed` record and in memory in a map `m_inactive_hd_seeds`. In `LegacyScriptPubKeyMan::MarkUnusedAddresses` we check each used key's metadata for whether it was derived from an inactive seed. If it is, we then check to see how many keys after that key were derived from the inactive seed. If that number does not match the keypool parameter, we derive more keys from the inactive seed until it does match. This way we won't miss transactions belonging to keys outside of the range of the keypool initially.
The indexes and internal-ness of a key is gotten by checking it's key origin data.
Because of this change, we no longer need to wait for IBD to finish before `sethdseed` can work so that check is also removed.
A test case for this is added as well which fails on master.
ACKs for top commit:
ryanofsky:
Code review ACK 1ed52fbb4d. Changes since last review: various commit message, code comment, log message, error checking improvements, and fix for topping up inactive seeds if wallet isn't reloaded after calling sethdseed and test for this
ariard:
Code Review ACK 1ed52fb
jonatack:
ACK 1ed52fbb4d thanks for addressing the previous review feedback; would be happy to see the new review questions answered and feedback addressed and re-ack.
Tree-SHA512: e658ae0e1dab94be55d2b62cdda506c94815e73a6881533fd30d41cc77477f82fee2095144957a3a1df0c129e256bdd7b7abe3737d515f393610446cae4edf1c
d67055e00d Upgrade or rewrite encrypted key checksums (Andrew Chow)
c9a9ddb414 Set fDecryptionThoroughlyChecked based on whether crypted key checksums are valid (Andrew Chow)
a8334f7ac3 Read and write a checksum for encrypted keys (Andrew Chow)
Pull request description:
Adds a checksum to the encrypted key record in the wallet database so that encrypted keys can be checked for corruption on wallet loading, in the same way that unencrypted keys are. This allows for us to skip the full decryption of keys upon the first unlocking of the wallet in that session as any key corruption will have already been detected. The checksum is just the double SHA256 of the encrypted key and it is appended to the record after the encrypted key itself.
This is backwards compatible as old wallets will be able to read the encrypted key and ignore that there is more data in the stream. Additionally, old wallets will be upgraded upon their first unlocking (so that key decryption is checked before we commit to a checksum of the encrypted key) and a wallet flag set indicating that. The presence of the wallet flag lets us skip the full decryption as if `fDecryptionThoroughlyChecked` were true.
This does mean that the first time an old wallet is unlocked in a new version will take much longer, but subsequent unlocks will be instantaneous. Furthermore, corruption will be detected upon loading rather than on trying to send so wallet corruption will be detected sooner.
Fixes#12423
ACKs for top commit:
laanwj:
code review ACK d67055e00d
jonatack:
Code review ACK d67055e00d
meshcollider:
Code review ACK d67055e00d
Tree-SHA512: d5c1c10cfcb5db9e10dcf2326423565a9f499290b81f3155ec72254ed5bd7491e2ff5c50e98590eb07842c20d7797b4efa1c3475bae64971d500aad3b4e711d4
m_address_type was used for two things:
1. Determine the type of descriptor to generate during
SetupDescriptorGeneration
2. Sanity check during GetNewDestination.
There is no need to have this variable to accomplish those things.
1. Add a argument to SetupDescriptorGeneration indicating the address
type to use
2. Use Descriptor::GetOutputType for the sanity check.
2a78098098 wallet: Make sure no WalletDescriptor members are uninitialized after construction (practicalswift)
ff046aeeba wallet: Make sure no DescriptorScriptPubKeyMan members are uninitialized after construction (practicalswift)
Pull request description:
This is a small folllow-up to #16528 ("Native Descriptor Wallets using DescriptorScriptPubKeyMan") which was merged in to `master` a couple of hours ago.
Make sure no `DescriptorScriptPubKeyMan` or `WalletDescriptor` members are left uninitialized after construction.
Before this change `bool m_internal` was left uninitialized when using the `DescriptorScriptPubKeyMan(WalletStorage&, WalletDescriptor&)` ctor.
The same goes for the now initialized integers which were left uninitialized when using the `WalletDescriptor()` ctor.
ACKs for top commit:
instagibbs:
utACK 2a78098098
fjahr:
Code review ACK 2a78098098
Sjors:
utACK 2a78098
achow101:
ACK 2a78098098
brakmic:
Code review ACK 2a78098098
meshcollider:
utACK 2a78098098
Tree-SHA512: c98e035268fdc7f65a423b73ac0cf010b0ef7c5e679b3cf170c1813efac8ab5c657dcbaf43c746770bea59e4772bfefe4caa834f1175260c39c7f35d92946ba5
Common errors and warnings should be translated when displayed in the
GUI, but not translated when displayed elsewhere. The wallet method
CreateWalletFromFile does not know its caller, so this commit changes it
to return a bilingual_str to the caller.
Internally, a GetSigningProvider function is introduced which allows for
some private keys to be optionally included. This can be called with a
script as the argument (i.e. a scriptPubKey from our wallet when we are
signing) or with a pubkey. In order to know what index to expand the
private keys for that pubkey, we need to also cache all of the pubkeys
involved when we expand the descriptor. So SetCache and TopUp are
updated to do this too.
Not all ScriptPubKeyMans will be able to provide private keys,
but pubkeys and scripts should be. So only provide public-only
SigningProviders, i.e. ones that can help with Solving.
Instead of fetching a SigningProvider from ScriptPubKeyMan in order
to fill and sign the keys and scripts for a PSBT, just pass that
PSBT to a new FillPSBT function that does all that for us.
CWallet::CanGetAddresses() is used to check whether the wallet has available or is able to produce keys for addresses. It uses the ScriptPubKeyMan::CanGetAddresses(), which in turn uses the const KeypoolCountExternalKeys() method, all which do counting and no modifications.
Change fDecryptionThoroughlyChecked to default to true so that it can
latch to false when an invalid checksum is seen. Checksums may be invalid
if the wallet does not have checksums or if the wallet became corrupted.
It is safe to default fDecryptionThoroughlyChecked to true because any
existing wallet without a checksum will set it to false. Any new or
blank wallet where encrypted keys are added will then set this to true
when the first encrypted key is generated by virtue of CheckDecryptionKey
doing that during the initial Unlock prior to keys being added.
3f373659d7 Refactor: Replace SigningProvider pointers with unique_ptrs (Andrew Chow)
3afe53c403 Cleanup: Drop unused GUI learnRelatedScripts method (Andrew Chow)
e2f02aa59e Refactor: Copy CWallet signals and print function to LegacyScriptPubKeyMan (Andrew Chow)
c729afd0a3 Box the wallet: Add multiple keyman maps and loops (Andrew Chow)
4977c30d59 refactor: define a UINT256_ONE global constant (Andrew Chow)
415afcccd3 HD Split: Avoid redundant upgrades (Andrew Chow)
01b4511206 Make UpgradeKeyMetadata work only on LegacyScriptPubKeyMan (Andrew Chow)
4a7e43e846 Store p2sh scripts in AddAndGetDestinationForScript (Andrew Chow)
501acb5538 Always try to sign for all pubkeys in multisig (Andrew Chow)
81610eddbc List output types in an array in order to be iterated over (Andrew Chow)
eb81fc3ee5 Refactor: Allow LegacyScriptPubKeyMan to be null (Andrew Chow)
fadc08ad94 Locking: Lock cs_KeyStore instead of cs_wallet in legacy keyman (Andrew Chow)
f5be479694 wallet: Improve CWallet:MarkDestinationsDirty (João Barbosa)
Pull request description:
Continuation of wallet boxes project.
Actually makes ScriptPubKeyMan an interface which LegacyScriptPubkeyMan. Moves around functions and things from CWallet into LegacyScriptPubKeyMan so that they are actually separate things without circular dependencies.
***
Introducing the `ScriptPubKeyMan` (short for ScriptPubKeyManager) for managing scriptPubKeys and their associated scripts and keys. This functionality is moved over from `CWallet`. Instead, `CWallet` will have a pointer to a `ScriptPubKeyMan` for every possible address type, internal and external. It will fetch the correct `ScriptPubKeyMan` as necessary. When fetching new addresses, it chooses the `ScriptPubKeyMan` based on address type and whether it is change. For signing, it takes the script and asks each `ScriptPubKeyMan` for whether that `ScriptPubKeyMan` considers that script `IsMine`, whether it has that script, or whether it is able to produce a signature for it. If so, the `ScriptPubKeyMan` will provide a `SigningProvider` to the caller which will use that in order to sign.
There is currently one `ScriptPubKeyMan` - the `LegacyScriptPubKeyMan`. Each `CWallet` will have only one `LegacyScriptPubKeyMan` with the pointers for all of the address types and change pointing to this `LegacyScriptPubKeyMan`. It is created when the wallet is loaded and all keys and metadata are loaded into it instead of `CWallet`. The `LegacyScriptPubKeyMan` is primarily made up of all of the key and script management that used to be in `CWallet`. For convenience, `CWallet` has a `GetLegacyScriptPubKeyMan` which will return the `LegacyScriptPubKeyMan` or a `nullptr` if it does not have one (not yet implemented, but callers will check for the `nullptr`). For purposes of signing, `LegacyScriptPubKeyMan`'s `GetSigningProvider` will return itself rather than a separate `SigningProvider`. This will be different for future `ScriptPubKeyMan`s.
The `LegacyScriptPubKeyMan` will also handle the importing and exporting of keys and scripts instead of `CWallet`. As such, a number of RPCs have been limited to work only if a `LegacyScriptPubKeyMan` can be retrieved from the wallet. These RPCs are `sethdseed`, `addmultisigaddress`, `importaddress`, `importprivkey`, `importpubkey`, `importmulti`, `dumpprivkey`, and `dumpwallet`. Other RPCs which relied on the wallet for scripts and keys have been modified in order to take the `SigningProvider` retrieved from the `ScriptPubKeyMan` for a given script.
Overall, these changes should not effect how everything actually works and the user should experience no difference between having this change and not having it. As such, no functional tests were changed, and the only unit tests changed were those that were directly accessing `CWallet` functions that have been removed.
This PR is the last step in the [Wallet Structure Changes](https://github.com/bitcoin-core/bitcoin-devwiki/wiki/Wallet-Class-Structure-Changes).
ACKs for top commit:
instagibbs:
re-utACK 3f373659d7
Sjors:
re-utACK 3f373659d7 (it still compiles on macOS after https://github.com/bitcoin/bitcoin/pull/17261#discussion_r370377070)
meshcollider:
Tested re-ACK 3f373659d7
Tree-SHA512: f8e2b8d9efa750b617691e8702d217ec4c33569ec2554a060141d9eb9b9a3a5323e4216938e2485c44625d7a6e0925d40dea1362b3af9857cf08860c2f344716
f41d589669 Document better -keypool as a look-ahead safety mechanism (Antoine Riard)
Pull request description:
If after a backup, an address is issued beyond the initial
keypool range and none of the addresses in this range
is seen onchain, if a wallet is restored from backup, even in
case of rescan, funds may be loss due to the look-ahead
buffer not being incremented and so restored wallet not detecting
onchain out-of-range address as derived from its seed.
This scenario is theoretically unavoidable due to the requirement
of the keypool to have a max size. However, given the default
keypool size, this is unlikely. Document better keypool size
implications to avoid user setting a too low value.
While reviewing #17681, it took me a while to figure out the safety implications of keypool, I find it would be better to document this a bit farther to avoid users shooting themselves in the foot. For further context & discussion, see https://github.com/bitcoin/bitcoin/pull/17681#issuecomment-563613452
ACKs for top commit:
ryanofsky:
Code review ACK f41d589669. Just "Warning:" prefix added since the last review
jonatack:
ACK f41d589669 code review and build/test. The added `Warning:` since last review is a good addition.
Tree-SHA512: d3d0ee88fcdfc5c8841a2bd4bada0e4eeb412a0dce5054e5fb023643c2fa57206a0f3efb06890c245528dc4431413ed2fd5645b9319d26245d044c490b7f0db0
Needed for future ScriptPubKeyMans which may need to create
SigningProviders dynamically and thus a normal pointer is not enough
This commit does not change behavior.
Add wallet logic for dealing with multiple ScriptPubKeyMan instances. This
doesn't change current behavior because there is still only a single
LegacyScriptPubKeyMan. But in the future the new logic will be used to support
descriptor wallets.
-BEGIN VERIFY SCRIPT-
# Delete outdated alias for RecursiveMutex
sed -i -e '/CCriticalSection/d' ./src/sync.h
# Replace use of outdated alias with RecursiveMutex
sed -i -e 's/CCriticalSection/RecursiveMutex/g' $(git grep -l CCriticalSection)
-END VERIFY SCRIPT-
If after a backup, an address is issued beyond the initial
keypool range and none of the addresses in this range
is seen onchain, if a wallet is restored from backup, even in
case of rescan, funds may be loss due to the look-ahead
buffer not being incremented and so restored wallet not detecting
onchain out-of-range address as derived from its seed.
This scenario is theoretically unavoidable due to the requirement
of the keypool to have a max size. However, given the default
keypool size, this is unlikely. Document better keypool size
implications to avoid user setting a too low value.
6e77a7b65c keypool: Add comment about TopUp and when to use it (Andrew Chow)
ea50e34b28 keypool: Move opportunistic TopUps from LegacyScriptPubKeyMan to CWallet and ReserveDestination (Andrew Chow)
bb2c8ce23c keypool: Remove superfluous topup from CWallet::GetNewChangeDestination (Andrew Chow)
Pull request description:
* The `TopUp()` in `CWallet::GetNewChangeDestination` is unnecessary as currently m_spk_man calls TopUp further down the call stack inside LegacyScriptPubKeyMan::ReserveKeyFromKeyPool (called by LegacyScriptPubKeyMan::GetReservedDestination). This also lets us prepare for future changes with multiple ScriptPubKeyMans in the wallet.
* An opportunistic `TopUp()` is moved from `LegacyScriptPubKeyMan::GetNewDestination` to `CWallet::GetNewDestination`.
* Another opportunistic `TopUp()` is moved from `LegacyScriptPubKeyMan::ReserveKeyFromKeyPool`
Moving opportunistic TopUps ensures that ScriptPubKeyMans will always be topped up before requesting Destinations from them as we cannot always rely on future ScriptPubKeyMan implementaions topping up internally.
See also: https://github.com/bitcoin/bitcoin/pull/17373#discussion_r348598174
ACKs for top commit:
instagibbs:
utACK 6e77a7b65c only change is slight elaboration on comment
ryanofsky:
Code review ACK 6e77a7b65c. Only the comment changed since my previous review.
Tree-SHA512: bdfc8d303842c3fb7c3d40af7abfa6d9dac4ef71a24922bb92229674ee89bfe3113ebb46d3903ac48ef99f0a7d6eaac33282495844f2b31f91b8df55084c421f
Removes SetCrypted() and fUseCrypto as we don't need them anymore.
SetCrypted calls in LegacyScriptPubKeyMan are replaced with mapKeys.empty()
IsCrypted() is changed to just call HasEncryptionKeys()
