e57980b473 [mempool] Remove NotifyEntryAdded and NotifyEntryRemoved callbacks (John Newbery)
2dd561f361 [validation] Remove pool member from ConnectTrace (John Newbery)
969b65f3f5 [validation] Remove NotifyEntryRemoved callback from ConnectTrace (John Newbery)
5613f9842b [validation] Remove conflictedTxs from PerBlockConnectTrace (John Newbery)
cdb893443c [validation interface] Remove vtxConflicted from BlockConnected (John Newbery)
1168394d75 [wallet] Notify conflicted transactions in TransactionRemovedFromMempool (John Newbery)
Pull request description:
These boost signals were added in #9371, before we had a `TransactionRemovedFromMempool` method in the validation interface. The `NotifyEntryAdded` callback was used by validation to build a vector of conflicted transactions when connecting a block, which the wallet was notified of in the `BlockConnected` CValidationInterface callback.
Now that we have a `TransactionRemovedFromMempool` callback, we can fire that signal directly from the mempool for conflicted transactions.
Note that #9371 was implemented to ensure `-walletnotify` events were fired for these conflicted transaction. We inadvertently stopped sending these notifications in #16624 (Sep 2019 commit 7e89994). We should probably fix that, but in a different PR.
ACKs for top commit:
jonatack:
Re-ACK e57980b
ryanofsky:
Code review ACK e57980b473, no code changes since previous review, but helpful new code comments have been added and the PR description is now more clear about where the old code came from
Tree-SHA512: 3bdbaf1ef2731e788462d4756e69c42a1efdcf168691ce1bbfdaa4b7b55ac3c5b1fd4ab7b90bcdec653703600501b4224d252cfc086aef28f9ce0da3b0563a69
5e47b19e50 tests: Add harness which fuzzes EvalScript and VerifyScript using a fuzzed signature checker (practicalswift)
Pull request description:
Add harness which fuzzes `EvalScript` and `VerifyScript` using a fuzzed signature checker.
Test this PR using:
```
$ make distclean
$ ./autogen.sh
$ CC=clang CXX=clang++ ./configure --enable-fuzz \
--with-sanitizers=address,fuzzer,undefined
$ make
$ src/test/fuzz/signature_checker
…
```
Closes#17986.
Top commit has no ACKs.
Tree-SHA512: a9988f8fa7919fe470756ca3e4e75764a589f590769aab452c8f4c254cf41667793e52131d470a12629ec3681fa7fc20091f371b8f3e3eec105674c2769e7d7e
fa36f3a295 refactor: move DUMP_BANS_INTERVAL to banman.h (MarcoFalke)
fadafb83cf scheduler: Make schedule* methods type safe (MarcoFalke)
fa70ccc6c4 scheduler: Use C++11 member initialization, add shutdown assert (MarcoFalke)
Pull request description:
Main benefit is that stuff like `15 * 60 * 1000` is replaced by `minutes{15}`
ACKs for top commit:
vasild:
ACK fa36f3a (code review, not tested)
ajtowns:
ACK fa36f3a295
jonatack:
ACK fa36f3a
Tree-SHA512: f35f1a1d643dfa676bd47474659f6492ed05cca04cdb556064b126f654a6a44a4b93fcaddcdcd41faf81b8f11439c11e5c7ab88685ba2eef12f7188843d17ad8
fa7fea3654 refactor: Remove mempool global from net (MarcoFalke)
Pull request description:
To increase modularisation and simplify testing, remove the mempool global from net in favour of a mempool member.
This is done in the same way it was done for the connection manager global.
ACKs for top commit:
jnewbery:
code review ACK fa7fea3654
Tree-SHA512: 0e3e1eefa8d6e46367bc6991d5f36c636b15ae4a3bda99b6fe6715db3240771c3d87943c6eb257d69f31929fa2f1d0973e14fc9d1353a27551dbe746eae36857
09e25071f4 Cache parent xpub inside of BIP32PubkeyProvider (Andrew Chow)
deb791c7ba Only cache xpubs that have a hardened last step (Andrew Chow)
f76733eda5 Cache the immediate derivation parent xpub (Andrew Chow)
58f54b686f Add DescriptorCache* read_cache and DescriptorCache* write_cache to Expand and GetPubKey (Andrew Chow)
66c2cadc91 Rename BIP32PubkeyProvider.m_extkey to m_root_extkey (Andrew Chow)
df55d44d0d Track the index of the key expression in PubkeyProvider (Andrew Chow)
474ea3b927 Introduce DescriptorCache struct which caches xpubs (Andrew Chow)
Pull request description:
Improves the descriptor cache by changing it from a `std::vector<unsigned char>` to a newly introduced `DescriptorCache` class. Instead of serializing pubkeys and whatever else we would want to cache in a way that may not be backwards compatible, we instead create a `DescriptorCache` object and populate it. This object contains only an xpub cache. Since the only `PubkeyProvider` that used the cache is the `BIP32PubkeyProvider` we just have it store the xpubs instead of the pubkeys. This allows us to have both the parent xpub and the child xpubs in the same container. The map is keyed by `KeyOriginInfo`.
Sine we are caching `CExtPubKey`s in `DescriptorCache`, `BIP32PubKeyProviders` can use the cached parent xpubs to derive the children if unhardened derivation is used in the last step. This also means that we can still derive the keys for a `BIP32PubkeyProvider` that has hardened derivation steps. When combined with descriptor wallets, this should allow us to be able to import a descriptor with an `xprv` and hardened steps and still be able to derive from it. In that sense, this is an alternative to #18163
To test that this works, the tests have been updated to do an additional `Expand` at the `i + 1` position. This expansion is not cached. We then do an `ExpandFromCache` at `i + 1` and use the cache that was produced by the expansion at `i`. This way, we won't have the child xpubs for `i + 1` but we will have the parent xpubs. So this checks whether the parent xpubs are being stored and can be used to derive the child keys. Descriptors that have a hardened last step are skipped for this part of the test because that will always require private keys.
ACKs for top commit:
instagibbs:
code review re-re-ACK 09e25071f4
Sjors:
re-ACK 09e25071f4
Tree-SHA512: 95c8d0092274cdf115ce39f6d49dec767679abf3758d5b9e418afc308deca9dc6f67167980195bcc036cd9c09890bbbb39ec1dacffbfacdc03efd72a7e23b276
fab7d14ea5 test: Check that wait_until returns if time point is in the past (MarcoFalke)
Pull request description:
Add an explicit regression test for the condvar bug (#18227), so that this doesn't happen again
ACKs for top commit:
laanwj:
ACK fab7d14ea5
Tree-SHA512: 6ec0d0b3945cae87a001e367af34cca1953a8082b4a0d9f8a20d30acd1f36363e98035d4eb173ff786cf6692d352d41f960633415c46394af042eb44e3b5ad71
9220a0fdd0 tests: Add one specialized ProcessMessage(...) fuzzing binary per message type for optimal results when using coverage-guided fuzzing (practicalswift)
fd1dae10b4 tests: Add fuzzing harness for ProcessMessage(...) (practicalswift)
Pull request description:
Add fuzzing harness for `ProcessMessage(...)`. Enables high-level fuzzing of the P2P layer.
All code paths reachable from this fuzzer can be assumed to be reachable for an untrusted peer.
Seeded from thin air (an empty corpus) this fuzzer reaches roughly 20 000 lines of code.
To test this PR:
```
$ make distclean
$ ./autogen.sh
$ CC=clang CXX=clang++ ./configure --enable-fuzz \
--with-sanitizers=address,fuzzer,undefined
$ make
$ src/test/fuzz/process_message
…
```
Worth noting about this fuzzing harness:
* To achieve a reasonable number of executions per seconds the state of the fuzzer is unfortunately not entirely reset between `test_one_input` calls. The set-up (`FuzzingSetup` ctor) and tear-down (`~FuzzingSetup`) work is simply too costly to be run on every iteration. There is a trade-off to handle here between a.) achieving high executions/second and b.) giving the fuzzer a totally blank slate for each call. Please let me know if you have any suggestion on how to improve this situation while maintaining >1000 executions/second.
* To achieve optimal results when using coverage-guided fuzzing I've chosen to create one specialised fuzzing binary per message type (`process_message_addr`, `process_message_block`, `process_message_blocktxn `, etc.) and one general fuzzing binary (`process_message`) which handles all messages types. The latter general fuzzer can be seeded with inputs generated by the former specialised fuzzers.
Happy fuzzing friends!
ACKs for top commit:
MarcoFalke:
ACK 9220a0fdd0🏊
Tree-SHA512: c314ef12b0db17b53cbf3abfb9ecc10ce420fb45b17c1db0b34cabe7c30e453947b3ae462020b0c9f30e2c67a7ef1df68826238687dc2479cd816f0addb530e5
6590395f60 tests: Remove FUZZERS_MISSING_CORPORA (practicalswift)
815c7a6793 tests: Add basic fuzzing harness for CNetAddr/CService/CSubNet related functions (netaddress.h) (practicalswift)
Pull request description:
Add basic fuzzing harness for `CNetAddr`/`CService`/`CSubNet` related functions (`netaddress.h`).
To test this PR:
```
$ make distclean
$ ./autogen.sh
$ CC=clang CXX=clang++ ./configure --enable-fuzz \
--with-sanitizers=address,fuzzer,undefined
$ make
$ src/test/fuzz/netaddress
…
```
Top commit has no ACKs.
Tree-SHA512: 69dc0e391d56d5e9cdb818ac0ac4b69445d0195f714442a06cf662998e38b6e0bbaa635dce78df37ba797feed633e94abba4764b946c1716d392756e7809112d
Also adds tests for this:
For ranged descriptors with unhardened derivation, we expect to
find parent keys in the cache but no child keys.
For descriptors containing an xpub but do not have unhardened derivation
(i.e. hardened derivation or single xpub with or without derivation),
we expect to find all of the keys in the cache, and the same
number of keys in the cache as in the SigningProvider.
For everything else (no xpub), nothing should be cached at all.
Have Expand, ExpandFromCache, and ExpandHelper take additional DescriptorCache
parameters. These are then passed into PubkeyProvider::GetPubKey which
also takes them as arguments.
Reading and writing to the cache is pushed down into GetPubKey. The old cache where
pubkeys are serialized to a vector is completely removed and instead xpubs are being
cached in DescriptorCache.
