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-BEGIN VERIFY SCRIPT-
sed -i 's/CChainState/Chainstate/g' $(git grep -l CChainState ':(exclude)doc/release-notes*')
-END VERIFY SCRIPT-
Co-authored-by: MacroFake <falke.marco@gmail.com>
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In order to prevent memory DoS, we must ensure that we don't accept a new
header into memory until we've performed anti-DoS checks, such as verifying
that the header is part of a sufficiently high work chain. This commit adds a
new argument to AcceptBlockHeader() so that we can ensure that all call-sites
which might cause a new header to be accepted into memory have to grapple with
the question of whether the header is safe to accept, or needs further
validation.
This patch also fixes two places where low-difficulty-headers could have been
processed without such validation (processing an unrequested block from the
network, and processing a compact block).
Credit to Niklas Gögge for noticing this issue, and thanks to Sjors Provoost
for test code.
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eeee5ada23f2a71d245671556b6ecfdaabfeddf4 Make adjusted time type safe (MacroFake)
fa3be799fe951a7ea9b4de78d5a907c6db71eeb8 Add time helpers (MacroFake)
Pull request description:
This makes follow-ups easier to review. Also, it makes sense by itself.
ACKs for top commit:
ryanofsky:
Code review ACK eeee5ada23f2a71d245671556b6ecfdaabfeddf4. Confirmed type changes and equivalent code changes only.
Tree-SHA512: 51bf1ae5428552177286113babdd49e82459d6c710a07b6e80a0a045d373cf51045ee010461aba98e0151d8d71b9b3b5f8f73e302d46ba4558e0b55201f99e9f
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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.
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Also:
- Make DEFAULT_MAX_SIG_CACHE_SIZE into constexpr
DEFAULT_MAX_SIG_CACHE_BYTES to utilize the compile-time integer
arithmetic overflow checking available to constexpr.
- Fix comment (MiB instead of MB) for DEFAULT_MAX_SIG_CACHE_BYTES.
- Pass in max_size_bytes parameter to InitS*Cache(), modify log line to
no longer allude to maxsigcachesize being split evenly between the two
validation caches.
- Fix possible integer truncation and add a comment.
[META] I've kept the integer types as int64_t in order to not introduce
unintended behaviour changes, in the next commit we will make
them size_t.
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Returning the approximate total size eliminates the need for
InitS*Cache() to do nElems*sizeof(uint256). The cuckoocache has a better
idea of this information.
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This wasn't available at the time when ChainstateManager::Options was
introduced but is helpful to be explicit and ensure correctness.
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This reduces libbitcoinkernel's coupling with ui_interface and
translation.
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...instead of explicitly calling init::{Set,Unset}Globals.
Cool thing about this is that in both the testing and bitcoin-chainstate
codepaths, we no longer need to explicitly unset globals. The
kernel::Context goes out of scope and the globals are unset
"automatically".
Also construct kernel::Context outside of AppInitSanityChecks()
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This decouples validation.cpp from netaddress.cpp (transitively,
timedata.cpp, and asmap.cpp).
This is important for libbitcoinkernel as:
- There is no reason for the consensus engine to be coupled with
netaddress, timedata, and asmap
- Users of libbitcoinkernel can now easily supply their own
std::function that provides the adjusted time.
See the src/Makefile.am changes for some satisfying removals.
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[META] Although it seems like we don't need it for just one option,
we're going to introduce another member to this struct *in the
next commit*. In future patchsets for libbitcoinkernel decoupling
it from ArgsManager, even more members will be added here.
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GenerateCoinbaseCommitment into ChainstateManager
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035fa1f07aacb7bce74c0884ae28c8cf00fe3b1b build: Remove LIBTOOL_APP_LDFLAGS for bitcoin-chainstate (Cory Fields)
3f0595095dd6d230dc661641227937e3ab4ca8d3 docs: Add libbitcoinkernel_la_SOURCES explanation (Carl Dong)
94ad45deb257a95b4e98aa85da0371fb072fcd4c ci: Build libbitcoinkernel (Carl Dong)
26b2e7ffb3471a4712e5b9e50e066e0e3218f0dd build: Extract the libbitcoinkernel library (Carl Dong)
1df44dd20ca9e6e55eb353824b27d11bd1878c59 b-cs: Define G_TRANSLATION_FUN in bitcoinkernel.cpp (Carl Dong)
83a0bb7cc9907dbe089409ed5a417277ed63ed95 build: Separate lib_LTLIBRARIES initialization (Carl Dong)
c1e16cb31f4d8edde8fea310011189b8b272cb07 build: Create .la library for bitcoincrypto (Carl Dong)
8bdfe057c796dde1cd2e5a37a73e87a879e9fe56 build: Create .la library for leveldb (Carl Dong)
05d1525b6d4412f68ff4c5460cd1daa6fb49969b build: Create .la library for crc32c (Carl Dong)
64caf944797bc35c3044fe5675389656f9511a41 build: Remove vestigial LIBLEVELDB_SSE42 (Carl Dong)
1392e8e2d8cfe4115f0a152aca16ffe3f0f4573a build: Don't add unrelated libs to LIBTEST_* (Carl Dong)
Pull request description:
Part of: #24303
This PR introduces a `libbitcoinkernel` static library linking in the minimal list of files necessary to use our consensus engine as-is. `bitcoin-chainstate` introduced in #24304 now will link against `libbitcoinkernel`.
Most of the changes are related to the build system.
Please read the commit messages for more details.
ACKs for top commit:
theuni:
This may be my favorite PR ever. It's a privilege to ACK 035fa1f07aacb7bce74c0884ae28c8cf00fe3b1b.
Tree-SHA512: b755edc3471c7c1098847e9b16ab182a6abb7582563d9da516de376a770ac7543c6fdb24238ddd4d3d2d458f905a0c0614b8667aab182aa7e6b80c1cca7090bc
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In previous commits in this patchset, we've made sure that every
Unload/UnloadBlockIndex member function resets its own members, and does
not reach out to globals.
This means that their corresponding classes' default destructors can now
replace them, and do an even more thorough job without the need to be
updated for every new member variable.
Therefore, we can remove them, and also remove UnloadBlockIndex since
that's not used anymore.
Unfortunately, chainstatemanager_loadblockindex relies on
CChainState::UnloadBlockIndex, so that needs to stay for now.
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The only caller that uses this is ~ChainTestingSetup() where we
immediately destroy the mempool afterwards.
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[META] This is done in preparation for extracting libbitcoinkernel in a
following commit. It seems logical that generally users of a
library shouldn't need to export its own symbols to use the
library.
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This was introduced because of a silent merge conflict.
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The bitcoin-chainstate executable serves to surface the dependencies
required by a program wishing to use Bitcoin Core's consensus engine as
it is right now.
More broadly, the _SOURCES list serves as a guiding "North Star" for the
libbitcoinkernel project: as we decouple more and more modules of the
codebase from our consensus engine, this _SOURCES list will grow shorter
and shorter. One day, only what is critical to our consensus engine will
remain. Right now, it's "the minimal list of files to link in to even
use our consensus engine".
[META] In a future commit the libbitcoinkernel library will be extracted
from bitcoin-chainstate, and the libbitcoinkernel library's
_SOURCES list will be the list that we aim to shrink.
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