Note that for speed this commit also removes the proof of work and
signet signature checks before returning the block in getblock.
It is assumed if a block is stored it will be valid.
Github-Pull: #26415
Rebased-From: e710cefd57
Note that for speed this commit also removes the proof of work and
signet signature checks before returning the block in getblock.
It is assumed if a block is stored it will be valid.
Github-Pull: #26415
Rebased-From: 95ce0783a6
ReadRawBlockFromDisk assumes a non-null pos that has an nPos >= 8.
This simple check makes the function safer to call in the future,
so callers don't need to worry about causing UB if the pos is null.
Github-Pull: #26415
Rebased-From: da338aada7
Addnode (manual) peers connected to us via the cjdns network are currently not
detected by CConnman::GetAddedNodeInfo(), i.e. fConnected is always false.
This causes the following issues:
- RPC `getaddednodeinfo` incorrectly shows them as not connected
- CConnman::ThreadOpenAddedConnections() continually retries to connect them
Github-Pull: #30085
Rebased-From: 684da97070
This PR allows the reindex flag to be set to auto, which automatically starts a reindex if the chain state or block index are corrupt.
This can be especially useful for Raspberry Pi based full nodes, which often experience power outages or similar issues which can corrupt data.
It allows full node operators to make Bitcoin Core reindex automatically, without having to worry about removing the reindex flag again. (Which isn't much effort, but can be annoying to forget)
Github-Pull: #22072
Rebased-From: 602f4da9178dff11853431f9a7115194f6a016ac
This primarily affects blocks when bitcoin is launched with -reindex, as
that causes the block files to be loaded as CBufferedFile objects one at
a time as the reindex progresses.
Co-Authored-By: Luke Dashjr <luke-jr+git@utopios.org>
Github-Pull: #14485
Rebased-From: 289e88b3133107f8a54184d8316559c7cf8ddb12
On default legacy wallets, the backup filename starts with an "-" due
to the wallet name being empty. This is inconvenient for systems who
treat what follows the initial "-" character as flags.
Github-Pull: #29586
Rebased-From: a951dba3a9
Addnode (manual) peers connected to us via the cjdns network are currently not
detected by CConnman::GetAddedNodeInfo(), i.e. fConnected is always false.
This causes the following issues:
- RPC `getaddednodeinfo` incorrectly shows them as not connected
- CConnman::ThreadOpenAddedConnections() continually retries to connect them
Github-Pull: #30085
Rebased-From: 684da97070
This didn't work for two reasons:
1.) GetSnapshotCoinsDBPath() was used to retrieve the path.
This requires coins_views to exist, but the initialisation only happens later
(in CompleteChainstateInitialization) so the node hits an assert in
CCoinsViewDB& CoinsDB() and crashes.
2.) The snapshot was already activated, so it has the mempool attached.
Therefore, the mempool needs to be transferred back to the ibd
chainstate before deleting the snapshot chainstate.
Github-Pull: #29726
Rebased-From: e57f951805
Without explicitly declaring the move, these UniValues get copied,
causing increased memory usage. Fix this by explicitly moving the
UniValue objects.
Used by `rest_block` and `getblock` RPC.
Github-Pull: #30094
Rebased-From: b77bad309e
Fixes: #809
Previously it was possible through the GUI to enter an IP address:port
into the "Proxy IP" configuration box. After the node was restarted the
errant setting would prevent the node starting back up until manually
removed from settings.json.
Github-Pull: https://github.com/bitcoin-core/gui/pull/813
Rebased-From: 10c5275ba4
The default max file size for LevelDB is 2 MiB, which results in the
LevelDB compaction code generating ~4 disk cache flushes per second when
syncing with the Bitcoin network.
These disk cache flushes are triggered by fdatasync() syscall issued by the
LevelDB compaction code when reaching the max file size.
If the database is on a HDD this flush rate brings the whole system to a
crawl.
It also results in very slow throughput since 2 MiB * 4 flushes per second
is about 8 MiB / second max throughput, while even an old HDD can pull
100 - 200 MiB / second streaming throughput.
Increase the default db file size for LevelDB to 128 MiB instead so the flush
rate drops to about 1 flush / 2 seconds and the system no longer gets so
sluggish.
The db file size value chosen also matches the MAX_BLOCKFILE_SIZE file
size setting already used by the block storage.
As described in #10542 (and numerous other places), message signing in
Bitcoin Core only supports message signing using P2PKH addresses, at
least until a new message-signing standard is agreed upon.
Therefore update the possibly-misleading error message presented to the
user in the GUI to detail more specifically the reason their message
cannot be signed, in the case that a non P2PKH address is entered.
Github-Pull: gui#819
Rebased-From: fb9f150759
The script provided for signature might be externally provided, for
instance by way of 'finalizepsbt'. Therefore the script might be
ill-crafted, so don't assume pubkeys are always 32 bytes.
Thanks to Niklas for finding this.
Github-Pull: #29853
Rebased-From: 4d8d21320e
A common issue that our fuzzers keep finding is that outpoints don't
exist in the non witness utxos. Instead of trying to track this down and
checking in various individual places, do the check early during
deserialization.
Github-Pull: #29855
Rebased-From: 9e13ccc50e
Limit number of IPs learned from a single DNS seed to 32, to prevent the results from
one DNS seed from dominating AddrMan. Note that the number of results from a UDP DNS query is
bounded to 33 already, but it is possible for it to use TCP where a potentially enormous
number of results can be returned.
Closes#16070.
Github-Pull: #29850
Rebased-From: f2e3662e57
When WalletDir == DataDir we would have iterate trough our own node files
to find wallets, that consumes time and could cause an unresponsive node.
Github-Pull: #19419
Rebased-From: c730c7a6b6eb9f2e5138e2874ca7c5c269086bf3
7ab54397f8 seeds: Update testnet seeds (Ava Chow)
34a233b6d8 seeds: Update mainnet seeds (Ava Chow)
9701bc435f makeseeds: Check i2p seeds too (Ava Chow)
a8ec9eede4 makeseeds: Update PATTERN_AGENT (Ava Chow)
Pull request description:
The ipv4 and ipv6 seeds are updated from sipa's crawler, as outlined in contrib/seeds/README.md. The onion and i2p seeds are pulled from my node's addrman using `getrawaddrman` and then a connection was made to each node to retrieve the current service flags, block height, and user agent string before filtering through makeseeds.py. The CJDNS nodes were not updated as my node is not connected to that network.
makeseeds.py is also updated for more recent user agent strings as well as being able to handle i2p addresses.
Also updated the testnet seeds.
ACKs for top commit:
fanquake:
ACK 7ab54397f8
Tree-SHA512: 5edba63d51116e5d9a8ae23561ba5a311f4df88c555c60b2d7a6066e63f8cdfd256be7dac9acea4b370879d0d3c3a4b55328c15de4284b5f0d86e6cac2e5ba9b
This RPC allows the client to retrieve the file system locations
of the confirmed blocks and their undo data, to allow building
efficient indexes outside of Bitcoin Core.
An example usage is described here:
https://github.com/romanz/electrs/issues/308
By using the new RPC, it is possible to build an address-based
index taking ~24GB and a txindex taking ~6GB (as of Dec. 2020).
b7aa717cdd refactor: gui, simplify boost signals disconnection (furszy)
f3a612f901 gui: guard accessing a nullptr 'clientModel' (furszy)
Pull request description:
Fixing #800.
During shutdown, already queue events dispatched from the backend such
'numConnectionsChanged' and 0networkActiveChanged' could try to access
the clientModel object, which might not exist because we manually delete
it inside 'BitcoinApplication::requestShutdown()'.
This happen because boost does not clears the queued events when they arise
concurrently with the signal disconnection (see https://www.boost.org/doc/libs/1_55_0/doc/html/signals2/thread-safety.html).
From the docs:
1) "Note that since we unlock the connection's mutex before executing its associated slot, it is possible a slot will still be executing after it has been disconnected by a [connection::disconnect](https://www.boost.org/doc/libs/1_55_0/doc/html/boost/signals2/connection.html#idp89761576-bb)(), if the disconnect was called concurrently with signal invocation."
2) "The fact that concurrent signal invocations use the same combiner object means you need to insure any custom combiner you write is thread-safe"
So, we need to guard `clientModel` before accessing it at the handler side.
ACKs for top commit:
hebasto:
re-ACK b7aa717cdd
Tree-SHA512: f1a21d69248628f6a13556a9438c9e4ea9f0a3678aab09ddfe836e78e4eee405a6730d37d39f1445068ada3a110b655b619cf0e090fc2d0cdf99bed061364aeb
86b7f28d6c serialization: use internal endian conversion functions (Cory Fields)
432b18ca8d serialization: detect byteswap builtins without autoconf tests (Cory Fields)
297367b3bb crypto: replace CountBits with std::bit_width (Cory Fields)
52f9bba889 crypto: replace non-standard CLZ builtins with c++20's bit_width (Cory Fields)
Pull request description:
This replaces #28674, #29036, and #29057. Now ready for testing and review.
Replaces platform-specific endian and byteswap functions. This is especially useful for kernel, as it means that our deep serialization code no longer requires bitcoin-config.h.
I apologize for the size of the last commit, but it's hard to avoid making those changes at once.
All platforms now use our internal functions rather than libc or platform-specific ones, with the exception of MSVC.
Sadly, benchmarking showed that not all compilers are capable of detecting and optimizing byteswap functions, so compiler builtins are instead used where possible. However, they're now detected via macros rather than autoconf checks.
This[ matches how libc++ implements std::byteswap for c++23](https://github.com/llvm/llvm-project/blob/main/libcxx/include/__bit/byteswap.h#L26).
I suggest we move/rename `compat/endian.h`, but I left that out of this PR to avoid bikeshedding.
#29057 pointed out some irregularities in benchmarks. After messing with various compilers and configs for a few weeks with these changes, I'm of the opinion that we can't win on every platform every time, so we should take the code that makes sense going forward. That said, if any real-world slowdowns are caused here, we should obviously investigate.
ACKs for top commit:
maflcko:
ACK 86b7f28d6c📘
fanquake:
ACK 86b7f28d6c - we can finish pruning out the __builtin_clz* checks/usage once the minisketch code has been updated. This is more good cleanup pre-CMake & for the kernal.
Tree-SHA512: 715a32ec190c70505ffbce70bfe81fc7b6aa33e376b60292e801f60cf17025aabfcab4e8c53ebb2e28ffc5cf4c20b74fe3dd8548371ad772085c13aec8b7970e
f8a06f7a02 doc: remove references to disable-asm option now that it's gone (Cory Fields)
376f0f6d07 build: remove confusing and inconsistent disable-asm option (Cory Fields)
Pull request description:
1. It didn't actually disable asm usage in our code. Regardless of the setting, asm is used in random.cpp and support/cleanse.cpp.
2. The value wasn't forwarded to libsecp as a user might have reasonably expected.
3. We now have the DISABLE_OPTIMIZED_SHA256 define which is what disable-asm actually did in practice.
If there is any desire, we can hook DISABLE_OPTIMIZED_SHA256 up to a new configure option that actually does what it says.
Additionally, this is one of the last (THE last?) remaining uses of autoconf defines in our crypto code. As such it seems like low-hanging fruit.
ACKs for top commit:
fanquake:
ACK f8a06f7a02
Tree-SHA512: 4a99c2130225acbe9dc7399ed572a04ca155cbfa3eef8178a632ba533017d264691e6482cceb1d8f9c5d768619d99a2466dea4b82b27b18b872bceae91b92fbb
6ee3997d03 test: removes unnecessary check from validation_tests (Sergi Delgado Segura)
Pull request description:
An unnecessary check was added to the block mutation tests in #29412 where IsBlockMutated is returning true for the invalid reasons: we try to check mutation via transaction duplication, but the merkle root is not updated before the check, therefore the check fails because the provided root and the computed root differ, but not because the block contains the same transaction twice.
Notice that a proper check to test the duplication case is added a few lines later, so this check is just meaningless and can be removed. Check https://github.com/bitcoin/bitcoin/pull/29412#discussion_r1506490281 for context.
ACKs for top commit:
maflcko:
ACK 6ee3997d03
dergoegge:
utACK 6ee3997d03
BrandonOdiwuor:
utACK 6ee3997d03
Tree-SHA512: e4627668091dda5f589e4c15edac39dc84aabc9b34b8f7fadbf512beb7111d5477e1b69567a34b4a657e48ba66dfb864db5ff37c9bbe3ff24cd32931b2dd89e6
1. It didn't actually disable asm usage in our code. Regardless of the setting,
asm is used in random.cpp and support/cleanse.cpp.
2. The value wasn't forwarded to libsecp as a user might have reasonably
expected.
3. We now have the DISABLE_OPTIMIZED_SHA256 define which is what disable-asm
actually did in practice.
If there is any desire, we can hook DISABLE_OPTIMIZED_SHA256 up to a new
configure option that actually does what it says.
e073f1dfda test: make sure keypool sizes do not change on `getrawchangeaddress`/`getnewaddress` failures (UdjinM6)
367bb7a80c wallet: Avoid updating `ReserveDestination::nIndex` when `GetReservedDestination` fails (UdjinM6)
Pull request description:
I think the expected behaviour of `getrawchangeaddress` and `getnewaddress` RPCs is that their failure should not affect keypool in any way. At least that's how legacy wallets work, you can confirm this behaviour by running `wallet_keypool.py --legacy-wallet` on master with e073f1dfda applied on top. However running `wallet_keypool.py --descriptors` on the same commit results in the following failure:
```
File "/path/to/bitcoin/test/functional/test_framework/test_framework.py", line 131, in main
self.run_test()
File "/path/to/bitcoin/test/functional/wallet_keypool.py", line 114, in run_test
assert_equal(kp_size_before, kp_size_after)
File "/path/to/bitcoin/test/functional/test_framework/util.py", line 57, in assert_equal
raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
AssertionError: not([18, 24] == [19, 24])
```
This happens because we pass `nIndex` (which is a class member) into `GetReservedDestination` and since it's passed by reference we get an updated value back, so `nIndex` won't be equal `-1` anymore, no matter if the function failed or succeeded. This means that `ReturnDestination` (called by dtor of `ReserveDestination`) will try to return something we did not actually reserve.
The fix is to simply use a temporary variable instead of a class member and only update `nIndex` when `op_address` actually has value, basically do it the same way we do for other class members (`address` and `fInternal`) already.
ACKs for top commit:
achow101:
ACK e073f1dfda
josibake:
ACK e073f1dfda
Tree-SHA512: 1128288a60dd4d8f306ef6f7ac66cdfeae3c9cc35c66ecada2d78fa61ac759f2a757b70fc3976ba8b5081200942b58dfabc184c01ccf911af40ba8c145344651
An unnecessary check was added to the block mutation tests
in #29412 where IsBlockMutated is returning true for the invalid
reasons: we try to check mutation via transaction duplication,
but the merkle root is not updated before the check, therefore
the check fails because the provided root and the computed root
differ, but not because the block contains the same transaction twice.
The check is meaningless so it can be removed.
d8087adc7e [test] IsBlockMutated unit tests (dergoegge)
1ed2c98297 Add transaction_identifier::size to allow Span conversion (dergoegge)
1ec6bbeb8d [validation] Cache merkle root and witness commitment checks (dergoegge)
5bf4f5ba32 [test] Add regression test for #27608 (dergoegge)
49257c0304 [net processing] Don't process mutated blocks (dergoegge)
2d8495e080 [validation] Merkle root malleation should be caught by IsBlockMutated (dergoegge)
66abce1d98 [validation] Introduce IsBlockMutated (dergoegge)
e7669e1343 [refactor] Cleanup merkle root checks (dergoegge)
95bddb930a [validation] Isolate merkle root checks (dergoegge)
Pull request description:
This PR proposes to check for mutated blocks early as a defense-in-depth mitigation against attacks leveraging mutated blocks.
We introduce `IsBlockMutated` which catches all known forms of block malleation and use it to do an early mutation check whenever we receive a `block` message.
We have observed attacks that abused mutated blocks in the past, which could have been prevented by simply not processing mutated blocks (e.g. https://github.com/bitcoin/bitcoin/pull/27608 for which a regression test is included in this PR).
ACKs for top commit:
achow101:
ACK d8087adc7e
maflcko:
ACK d8087adc7e🏄
fjahr:
Code review ACK d8087adc7e
sr-gi:
Code review ACK d8087adc7e
Tree-SHA512: 618ff4ea7f168e10f07504d3651290efbb1bb2ab3b838ffff3527c028caf6c52dedad18d04d3dbc627977479710930e200f2dfae18a08f627efe7e64a57e535f
51bc1c7126 test: Remove Windows-specific code from `system_tests/run_command` (Hennadii Stepanov)
Pull request description:
The removed code has been dead since https://github.com/bitcoin/bitcoin/pull/28967.
Required as a precondition for replacing Boost.Process with [cpp-subprocess](https://github.com/bitcoin/bitcoin/pull/28981) to make diff for this code meaningful and reviewable.
The plan is to reintroduce Windows-specific code in this test simultaneously with enabling Windows support in cpp-subprocess.
ACKs for top commit:
Sjors:
utACK 51bc1c7126
theStack:
Code-review ACK 51bc1c7126
Tree-SHA512: 0e3875c4dc20564332555633daf2227223b10dc3d052557635eced2734575d1e0252fb19e46ea6e6c47a15c51c345f70b6d437e33435abcd0e4fcf29edb50887
During shutdown, already queue events dispatched from the backend such
'numConnectionsChanged' and 'networkActiveChanged' could try to access
the clientModel object, which might not exist because we manually delete
it inside 'BitcoinApplication::requestShutdown()'.
These replace our platform-specific mess in favor of c++20 endian detection
via std::endian and internal byteswap functions when necessary.
They no longer rely on autoconf detection.
Rather than a complicated set of tests to decide which bswap functions to
use, always prefer the compiler built-ins when available.
These builtins and fallbacks can all be removed once we're using c++23, which
adds std::byteswap.
This code has been dead since https://github.com/bitcoin/bitcoin/pull/28967.
Required as a precondition for replacing Boost.Process with
cpp-subprocess to make diff for this code meaningful and reviewable.
The plan is to reintroduce Windows-specific code in this test
simultaneously with enabling Windows support in cpp-subprocess.
We preemptively perform a block mutation check before further processing
a block message (similar to early sanity checks on other messsage
types). The main reasons for this change are as follows:
- `CBlock::GetHash()` is a foot-gun without a prior mutation check, as
the hash returned only commits to the header but not to the actual
transactions (`CBlock::vtx`) contained in the block.
- We have observed attacks that abused mutated blocks in the past, which
could have been prevented by simply not processing mutated blocks
(e.g. https://github.com/bitcoin/bitcoin/pull/27608).
d2fe90571e test: Drop `x` modifier in `fsbridge::fopen` call for mingw builds (Hennadii Stepanov)
Pull request description:
The MinGW-w64 toolchain links executables to the old msvcrt C Runtime Library that does not support the `x` modifier for the [`_wfopen()`](https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/fopen-wfopen?view=msvc-170) function.
Fixes https://github.com/bitcoin/bitcoin/issues/29014.
ACKs for top commit:
maflcko:
ACK d2fe90571e
fanquake:
ACK d2fe90571e - the plan here should still be to migrate to the newer windows runtime.
Tree-SHA512: 0269b66531e58c093ecda3a3e355a20ee8274e165d7e010f8f125881b3c8d4cfe801abdca4605d81efd3b2dbe9a81896968971f6f53da7f6c6093b76b47c5bc9
This `LogPrint(BCLog::RAND, ...)` is never logged because the
`SeedStartup` function is called at a very early stage, such as during
the instantiation of the static `CSignatureCache` object, before any log
categories are added. This change addresses this behavior.
b03b20685a Fix CI-detected codespell warnings (Lőrinc)
Pull request description:
Split out the typo fixes encountered in https://github.com/bitcoin/bitcoin/pull/29458 to a separate PR.
ACKs for top commit:
maflcko:
ACK b03b20685a
Tree-SHA512: 99b6fac01ba2ae6e6de9c50d2b481387899844a4b3a77d544c7b8afe7cfd25251a982329688d4739cde8b98ad35afcfd49be7c7cc3dad9bdff1d5915861a206d
faa30a4c56 rpc: Do not wait for headers inside loadtxoutset (MarcoFalke)
Pull request description:
While the `loadtxoutset` default 10 minute timeout is convenient when it is sufficient, it may cause hassle where it is not. For example:
* When P2P connections are missing, it seems better to abort early than wait for the timeout.
* When the 10 minute timeout is not sufficient, the RPC will have to be called again, so a check or loop is needed outside the RPC either way. So might as well remove the loop inside the RPC.
ACKs for top commit:
fjahr:
ACK faa30a4c56
theStack:
Code-review ACK faa30a4c56
pablomartin4btc:
tACK faa30a4c56
TheCharlatan:
ACK faa30a4c56
Tree-SHA512: 9167c7d8b2889bb3fd369de4acd2cc4d24a2fe225018d82bd9568ecd737093f6e19be7cc62815b574137b61076a6f773c29bff75398991b5cd702423aab2322b
fa58ae74ea refactor: Add missing include for USE_BDB, USE_SQLITE to bench/wallet_ismine.cpp (MarcoFalke)
fa31908ea8 lint: Check for missing or redundant bitcoin-config.h includes (MarcoFalke)
fa63b0e351 lint: Make lint error easier to spot in output (MarcoFalke)
fa770fd368 doc: Add missing RUST_BACKTRACE=1 (MarcoFalke)
fa10051267 lint: Add get_subtrees() helper (MarcoFalke)
Pull request description:
Missing `bitcoin-config.h` includes are problematic, because the build could silently pass, but produce an unintended result. For example, a slower fallback algorithm could be picked, even though `bitcoin-config.h` indicates that a faster feature is available and should be used.
As the build succeeds silently, this problem is not possible to detect with iwyu.
Thus, fix this by using a linter based on grepping the source code.
ACKs for top commit:
theuni:
Weak ACK fa58ae74ea.
TheCharlatan:
ACK fa58ae74ea
hebasto:
ACK fa58ae74ea, tested on Ubuntu 23.10 -- it catches bugs properly. I didn't review rust code changes.
Tree-SHA512: cf4346f81ea5b8c215da6004cb2403d1aaf569589613c305d8ba00329b82b3841da94fe1a69815ce15f2edecbef9b031758ec9b6433564976190e3cf91ec8181
