fa3da629a1 Remove DirIsWritable, GetUniquePath (MarcoFalke)
fad3a9793b Return LockResult::ErrorWrite in LockDirectory (MarcoFalke)
fa0afe7408 refactor: Return enum in LockDirectory (MarcoFalke)
Pull request description:
`GetUniquePath` is only used in tests and in `DirIsWritable`. The check by `DirIsWritable` is redundant with the check done in `LockDirectory`.
Fix the redundancy by removing everything, except `LockDirectory`.
ACKs for top commit:
TheCharlatan:
Re-ACK fa3da629a1
hebasto:
ACK fa3da629a1, I have reviewed the code and it looks OK.
Tree-SHA512: e95f18cd586de7582e9c08ac7ddb860bfcfcbc8963804f45c5784c5e4c0598dc59ae7e45dd4daf30a5020dbf8433f5db2ad06e46a8676371982003790043c6c9
Since the kernel library no longer depends on the system file, move it
to the common library instead in accordance to the diagram in
doc/design/libraries.md.
The fs.* files are already part of the libbitcoin_util library. With the
introduction of the fs_helpers.* it makes sense to move fs.* into the
util/ directory as well.
This is an extraction of filesystem related functions from util/system
into their own utility file.
The background of this commit is an ongoing effort to decouple the
libbitcoinkernel library from the ArgsManager defined in system.h.
Moving these functions out of system.h allows including them from a
separate source file without including the ArgsManager definitions from
system.h.
faab273e06 util: Return empty vector on invalid hex encoding (MarcoFalke)
fa3549a77b test: Add hex parse unit tests (MarcoFalke)
Pull request description:
Seems a bit confusing to happily accept random bytes and pretend they are hex encoded strings.
ACKs for top commit:
stickies-v:
re-ACK faab273e06
Tree-SHA512: a808135f744f50aece03d4bf5a71481c7bdca1fcdd0d5b113abdb0c8b382bf81cafee6d17c239041fb49b59f4e19970f24a475378e7f711c3a47d6438de2bdab
fa3ea81c3e refactor: Add LIFETIMEBOUND / -Wdangling-gsl to Assert() (MacroFake)
Pull request description:
Currently compiles clean, but I think it may still be useful.
Can be tested by adding an `&`:
```diff
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
index 5766fff92d..300c1ec60f 100644
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -125,7 +125,7 @@ BOOST_AUTO_TEST_CASE(util_check)
// Check -Wdangling-gsl does not trigger when copying the int. (It would
// trigger on "const int&")
- const int nine{*Assert(std::optional<int>{9})};
+ const int& nine{*Assert(std::optional<int>{9})};
BOOST_CHECK_EQUAL(9, nine);
}
```
Output:
```
test/util_tests.cpp:128:29: warning: object backing the pointer will be destroyed at the end of the full-expression [-Wdangling-gsl]
const int& nine{*Assert(std::optional<int>{9})};
^~~~~~~~~~~~~~~~~~~~~
./util/check.h:75:50: note: expanded from macro 'Assert'
#define Assert(val) inline_assertion_check<true>(val, __FILE__, __LINE__, __func__, #val)
^~~
1 warning generated.
ACKs for top commit:
jonatack:
ACK fa3ea81c3e
theuni:
ACK fa3ea81c3e
Tree-SHA512: 17dea4d75f2ee2bf6e1b6a6f6d8f439711c777df0390574e8d8edb6ac9ee807a135341e4439050bd6a15ecc4097a1ba9a7ab15d27541ebf70a4e081fa6871877
f345dc3960 tidy: enable bugprone-use-after-move (fanquake)
94f2235f85 test: work around bugprone-use-after-move warnings in util tests (fanquake)
Pull request description:
Would have caught #25640.
Currently `// NOLINT`s around:
```bash
test/util_tests.cpp:2513:34: error: 't2' used after it was moved [bugprone-use-after-move,-warnings-as-errors]
BOOST_CHECK(v2[0].origin == &t2);
^
test/util_tests.cpp:2511:15: note: move occurred here
auto v2 = Vector(std::move(t2));
^
test/util_tests.cpp:2519:34: error: 't2' used after it was moved [bugprone-use-after-move,-warnings-as-errors]
BOOST_CHECK(v3[1].origin == &t2);
^
test/util_tests.cpp:2516:15: note: move occurred here
auto v3 = Vector(t1, std::move(t2));
^
test/util_tests.cpp:2527:34: error: 't3' used after it was moved [bugprone-use-after-move,-warnings-as-errors]
BOOST_CHECK(v4[2].origin == &t3);
^
test/util_tests.cpp:2523:15: note: move occurred here
auto v4 = Vector(std::move(v3[0]), v3[1], std::move(t3));
```
See: https://releases.llvm.org/14.0.0/tools/clang/tools/extra/docs/clang-tidy/checks/bugprone-use-after-move.html
ACKs for top commit:
ryanofsky:
Code review ACK f345dc3960. Only change since last review is switching to NOLINT directives
Tree-SHA512: afadecbaf1069653f4be5d6e66a5800ffd975c0b1a960057abc6367b616c181cd518897a874a8f3fd5e5e1f45fcc165f7a9a3171136cd4deee641214c4b765b8
3add234546 ui: show header pre-synchronization progress (Pieter Wuille)
738421c50f Emit NotifyHeaderTip signals for pre-synchronization progress (Pieter Wuille)
376086fc5a Make validation interface capable of signalling header presync (Pieter Wuille)
93eae27031 Test large reorgs with headerssync logic (Suhas Daftuar)
355547334f Track headers presync progress and log it (Pieter Wuille)
03712dddfb Expose HeadersSyncState::m_current_height in getpeerinfo() (Suhas Daftuar)
150a5486db Test headers sync using minchainwork threshold (Suhas Daftuar)
0b6aa826b5 Add unit test for HeadersSyncState (Suhas Daftuar)
83c6a0c524 Reduce spurious messages during headers sync (Suhas Daftuar)
ed6cddd98e Require callers of AcceptBlockHeader() to perform anti-dos checks (Suhas Daftuar)
551a8d957c Utilize anti-DoS headers download strategy (Suhas Daftuar)
ed470940cd Add functions to construct locators without CChain (Pieter Wuille)
84852bb6bb Add bitdeque, an std::deque<bool> analogue that does bit packing. (Pieter Wuille)
1d4cfa4272 Add function to validate difficulty changes (Suhas Daftuar)
Pull request description:
New nodes starting up for the first time lack protection against DoS from low-difficulty headers. While checkpoints serve as our protection against headers that fork from the main chain below the known checkpointed values, this protection only applies to nodes that have been able to download the honest chain to the checkpointed heights.
We can protect all nodes from DoS from low-difficulty headers by adopting a different strategy: before we commit to storing a header in permanent storage, first verify that the header is part of a chain that has sufficiently high work (either `nMinimumChainWork`, or something comparable to our tip). This means that we will download headers from a given peer twice: once to verify the work on the chain, and a second time when permanently storing the headers.
The p2p protocol doesn't provide an easy way for us to ensure that we receive the same headers during the second download of peer's headers chain. To ensure that a peer doesn't (say) give us the main chain in phase 1 to trick us into permanently storing an alternate, low-work chain in phase 2, we store commitments to the headers during our first download, which we validate in the second download.
Some parameters must be chosen for commitment size/frequency in phase 1, and validation of commitments in phase 2. In this PR, those parameters are chosen to both (a) minimize the per-peer memory usage that an attacker could utilize, and (b) bound the expected amount of permanent memory that an attacker could get us to use to be well-below the memory growth that we'd get from the honest chain (where we expect 1 new block header every 10 minutes).
After this PR, we should be able to remove checkpoints from our code, which is a nice philosophical change for us to make as well, as there has been confusion over the years about the role checkpoints play in Bitcoin's consensus algorithm.
Thanks to Pieter Wuille for collaborating on this design.
ACKs for top commit:
Sjors:
re-tACK 3add234546
mzumsande:
re-ACK 3add234546
sipa:
re-ACK 3add234546
glozow:
ACK 3add234546
Tree-SHA512: e7789d65f62f72141b8899eb4a2fb3d0621278394d2d7adaa004675250118f89a4e4cb42777fe56649d744ec445ad95141e10f6def65f0a58b7b35b2e654a875
```bash
test/util_tests.cpp:2513:34: error: 't2' used after it was moved [bugprone-use-after-move,-warnings-as-errors]
BOOST_CHECK(v2[0].origin == &t2);
^
test/util_tests.cpp:2511:15: note: move occurred here
auto v2 = Vector(std::move(t2));
^
test/util_tests.cpp:2519:34: error: 't2' used after it was moved [bugprone-use-after-move,-warnings-as-errors]
BOOST_CHECK(v3[1].origin == &t2);
^
test/util_tests.cpp:2516:15: note: move occurred here
auto v3 = Vector(t1, std::move(t2));
^
test/util_tests.cpp:2527:34: error: 't3' used after it was moved [bugprone-use-after-move,-warnings-as-errors]
BOOST_CHECK(v4[2].origin == &t3);
^
test/util_tests.cpp:2523:15: note: move occurred here
auto v4 = Vector(std::move(v3[0]), v3[1], std::move(t3));
```
facd1fb911 refactor: Use Span of std::byte in CExtKey::SetSeed (MarcoFalke)
fae1006019 util: Add ParseHex<std::byte>() helper (MarcoFalke)
fabdf81983 test: Add test for embedded null in hex string (MarcoFalke)
Pull request description:
This adds the hex->`std::byte` helper after the `std::byte`->hex helper was added in commit 9394964f6b
ACKs for top commit:
pk-b2:
ACK facd1fb911
laanwj:
Code review ACK facd1fb911
Tree-SHA512: e2329fbdea2e580bd1618caab31f5d0e59c245a028e1236662858e621929818870b76ab6834f7ac6a46d7874dfec63f498380ad99da6efe4218f720a60e859be
fa305fd92c Add mockable clock type and TicksSinceEpoch helper (MarcoFalke)
Pull request description:
This will be used primarily by the addr time refactor (https://github.com/bitcoin/bitcoin/pull/24697) to make addr relay time type safe. However, it can also be used in other places, and can be reviewed independently, so I split it up.
ACKs for top commit:
jonatack:
ACK fa305fd92c per `git range-diff 7b3343f fa20781 fa305fd`
ajtowns:
ACK fa305fd92c
Tree-SHA512: da00200126833c1f55b1b1e68f596eab5c9254e82b188ad17779c08ffd685e198a7c5270791b4b69a858dc6ba4e051fe0c8b445d203d356d0c884f6365ee1cfe
f64aa9c411 Disallow more unsafe string->path conversions allowed by path append operators (Ryan Ofsky)
Pull request description:
Add more `fs::path` `operator/` and `operator+` overloads to prevent unsafe string->path conversions on Windows that would cause strings to be decoded according to the current Windows locale & code page instead of the correct string encoding.
Update application code to deal with loss of implicit string->path conversions by calling `fs::u8path` or `fs::PathFromString` explicitly, or by just changing variable types from `std::string` to `fs::path` to avoid conversions altogether, or make them happen earlier.
In all cases, there's no change in behavior either (1) because strings only contained ASCII characters and would be decoded the same regardless of what encoding was used, or (2) because of the 1:1 mapping between paths and strings using the `PathToString` and `PathFromString` functions.
Motivation for this PR was just that I was experimenting with #24469 and noticed that operations like `fs::path / std::string` were allowed, and I thought it would be better not to allow them.
ACKs for top commit:
hebasto:
ACK f64aa9c411
Tree-SHA512: 944cce49ed51537ee7a35ea4ea7f5feaf0c8fff2fa67ee81ec5adebfd3dcbaf41b73eb35e49973d5f852620367f13506fd12a7a9b5ae3a7a0007414d5c9df50f
Add more fs::path operator/ and operator+ overloads to prevent unsafe
string->path conversions on Windows that would cause strings to be
decoded according to the current Windows locale & code page instead of
the correct string encoding.
Update application code to deal with loss of implicit string->path
conversions by calling fs::u8path or fs::PathFromString explicitly, or
by just changing variable types from std::string to fs::path to avoid
conversions altoghther, or make them happen earlier.
In all cases, there's no change in behavior either (1) because strings
only contained ASCII characters and would be decoded the same regardless
of what encoding was used, or (2) because of the 1:1 mapping between
paths and strings using the PathToString and PathFromString functions.
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
a84650ebd5 util: Fix ReadBinaryFile reading beyond maxsize (klementtan)
Pull request description:
Currently `ReadBinaryFile` will read beyond `maxsize` if `maxsize` is not a multiple of `128` (size of buffer)
This is due to `fread` being called with `count = 128` instead of `count = min(128, maxsize - retval.size()` at every iteration
The following unit test will fail:
```cpp
BOOST_AUTO_TEST_CASE(util_ReadWriteFile)
{
fs::path tmpfolder = m_args.GetDataDirBase();
fs::path tmpfile = tmpfolder / "read_binary.dat";
std::string expected_text(300,'c');
{
std::ofstream file{tmpfile};
file << expected_text;
}
{
// read half the contents in file
auto [valid, text] = ReadBinaryFile(tmpfile, expected_text.size() / 2);
BOOST_CHECK_EQUAL(text.size(), 150);
}
}
```
Error:
```
test/util_tests.cpp:2593: error: in "util_tests/util_ReadWriteFile": check text.size() == 150 has failed [256 != 150]
```
ACKs for top commit:
laanwj:
Code review ACK a84650ebd5
theStack:
Code-review ACK a84650ebd5
Tree-SHA512: 752eebe58bc2102dec199b6775f8c3304d899f0ce36d6a022a58e27b076ba945ccd572858b19137b769effd8c6de73a9277f641be24dfb17657fb7173ea0eda0
48742693ac Replace "can not" with "cannot" in docs, user messages, and tests (Jon Atack)
e670edd434 User-facing content fixups from transifex translator feedback (Jon Atack)
Pull request description:
Closes #24366.
ACKs for top commit:
laanwj:
Code review re-ACK 48742693ac
hebasto:
re-ACK 48742693ac, only suggested change since my previous [review](https://github.com/bitcoin/bitcoin/pull/24367#pullrequestreview-885938219).
Tree-SHA512: 4dcdcb417251a413e65fab6070515e13a1267c8e0dbcf521386b842511391f24c84a0c2168fe13458c977682034466509bf2a3453719d4d94d3c568fd9f4adb4
