fa530ec543 rpc: Return precise loadtxoutset error messages (MarcoFalke)
faa5c86dbf refactor: Use untranslated error message in ActivateSnapshot (MarcoFalke)
Pull request description:
The error messages should never happen in normal operation. However, if
they do, they are helpful to return to the user to debug the issue. For
example, to notice a truncated file.
This fixes https://github.com/bitcoin/bitcoin/issues/28621
Also includes a minor refactor commit.
ACKs for top commit:
fjahr:
Code review ACK fa530ec543
ryanofsky:
Code review ACK fa530ec543, just adjusting error messages a little since last review. (Thanks!)
Tree-SHA512: 224968c9b13d082ca2ed1f6a8fcc5f51ff16d6c96bd38c3679699505b54337b99cccaf7a8474391f6b11f9ccb101977b4e626898c1217eae95802e290cf105f1
2d9d752e4f scripted-diff: Replace uint256S("str") -> uint256{"str"} (Hodlinator)
c06f2368e2 refactor: Hand-replace some uint256S -> uint256 (Hodlinator)
b74d8d58fa refactor: Add consteval uint256(hex_str) (Hodlinator)
Pull request description:
Motivation:
* Validates and converts the hex string at compile time instead of at runtime into the resulting bytes.
* Makes it possible to derive other compile time constants from `uint256`.
* Potentially eliminates runtime dependencies (`SetHexDeprecated()` is called in less places).
* Has stricter requirements than the deprecated `uint256S()` (requiring 64 chars exactly, disallows garbage at the end) and replaces it in a bunch of places.
* Makes the binary smaller (tested Guix-built x86_64-linux-gnu bitcoind binary).
* Minor: should shave off a few cycles of start-up time.
Extracted from #30377 which diverged into exploring `consteval` `ParseHex()` solutions.
ACKs for top commit:
maflcko:
rebase re-cr-ACK 2d9d752e4f🎐
stickies-v:
re-ACK 2d9d752e4f
paplorinc:
ACK 2d9d752e4f
Tree-SHA512: 39bd9320db0ed81950b5d71495eaa1d06508cc008466f2308874d70ac9ff32bc69798d2e3ef6a784868c1633fb519f60cc2111a9d0718c2663b28e78b67f7cde
fa3ea3b83c test: Fix intermittent issue in p2p_v2_misbehaving.py (MarcoFalke)
55555574d1 net: Log accepted connection after m_nodes.push_back (MarcoFalke)
Pull request description:
Fix the two issues reported in https://github.com/bitcoin/bitcoin/pull/30468/files#r1688444784:
* Delay a debug log line for consistency.
* Fix an intermittent test issue.
They are completely separate fixes, but both `net` related.
ACKs for top commit:
0xB10C:
Code Review ACK fa3ea3b83c
stratospher:
tested ACK fa3ea3b.
Tree-SHA512: cd6b6e164b317058a305a5c3e38c56c9a814a7469039e1143f1d7addfbc91b0a28506873356b373d97448b46cb6fbe94a1309df82e34c855540b241a09489e8b
bfd3c29e4f fuzz: fix timeout in crypter target (brunoerg)
Pull request description:
Fixes#30503
- Move SetKeyFromPassphrase to out of LIMITED_WHILE
- Remove `SetKey` calls since it is already called internally by other functions.
- Reduce number of iterations (100 is enough, no need for 10,000).
ACKs for top commit:
maflcko:
review ACK bfd3c29e4f📆
dergoegge:
utACK bfd3c29e4f
Tree-SHA512: 275ab7d07a20bfd07279a23613678993c10c166f40cdc900213b9f4d5afb107462d5f88518a0f4ce2a52f3b7950ff2c01cf74292042f16996909fcb96f827d3e
chainparams.cpp - workaround for MSVC bug triggering C7595 - Calling consteval constructors in initializer lists fails, but works on GCC (13.2.0) & Clang (17.0.6).
Complements uint256::FromHex() nicely in that it naturally does all error checking at compile time and so doesn't need to return an std::optional.
Will be used in the following 2 commits to replace many calls to uint256S(). uint256S() calls taking C-string literals are littered throughout the codebase and executed at runtime to perform parsing unless a given optimizer was surprisingly efficient. While this may not be a hot spot, it's better hygiene in C++20 to store the parsed data blob directly in the binary, without any parsing at runtime.
6d33e13bd4 doc: tor.md: use -bind=127.0.0.1:8334=onion for the Tor bind (David Gumberg)
a7f5d188cc doc: add release notes for #22729 (Vasil Dimov)
Pull request description:
Add release notes for #22729.
ACKs for top commit:
davidgumberg:
reACK 6d33e13bd4
willcl-ark:
ACK 6d33e13bd4
Tree-SHA512: 9d7e66ee1d0bb1d75b8273707d30f20915d5040a768c2c5cd47c84997df2645c8bec35db6c09dc77ab917836622411b924373816cbc83c4be38e2e9156a139d8
bf0efb4fc7 scripted-diff: Modernize naming of nChainTx and nTxCount (Fabian Jahr)
72e5d1be1f test: Add basic check for nChainTx type (Fabian Jahr)
dc2938e979 chainparams: Change nChainTx to uint64_t (Fabian Jahr)
Pull request description:
This picks up the work from #29331 and closes#29258.
This simply changes the type and addresses the comments from #29331 by changing the type in all relevant places and removing unnecessary casts. This also adds an extremely simple unit test.
Additionally this modernizes the name of `nChainTx` which helps reviewers check all use of the symbol and can make silent merge conflicts.
ACKs for top commit:
maflcko:
only rebase in scripted-diff, re-ACK bf0efb4fc7🔈
glozow:
reACK bf0efb4fc7 via range-diff
Tree-SHA512: ee4020926d0800236fe655d0c7b127215ab36b553b04d5f91494f4b7fac6e1cfe7ee298b07c0983db5a3f4786932acaa54f5fd2ccd45f2fcdcfa13427358dc3b
5e87f30f7c test: check that keyless P2A 'signing' via `signrawtransactionwithkey` succeeds (Sebastian Falbesoner)
Pull request description:
This small PR adds a sanity check to verify that transactions with P2A inputs can be 'signed' successfully, using the non-wallet RPC `signrawtransactionwithkey`. Note that in the this flow, `SignStep` (which was also extended for the new `ANCHOR` output type in #30352) is never called, as signing is only tried if the locking script verification isn't successful already. See the review discussion https://github.com/bitcoin/bitcoin/pull/30352#discussion_r1690530356 ff.
ACKs for top commit:
instagibbs:
ACK 5e87f30f7c
tdb3:
ACK 5e87f30f7c
glozow:
code review ACK 5e87f30f7c
Tree-SHA512: dfea75b4bf8fa0b9c265ddd63dab36374c2430c31220f0c8eb1b53dd847c183f9e1c493a0173e2da317553a1d4cb1b35aa9ffde1268c430cc610368d23b9c942
bbcee5a0d6 clusterlin: improve rechunking in LinearizationChunking (optimization) (Pieter Wuille)
04d7a04ea4 clusterlin: add MergeLinearizations function + fuzz test + benchmark (Pieter Wuille)
4f8958d756 clusterlin: add PostLinearize + benchmarks + fuzz tests (Pieter Wuille)
0e2812d293 clusterlin: add algorithms for connectedness/connected components (Pieter Wuille)
0e52728a2d clusterlin: rename Intersect -> IntersectPrefixes (Pieter Wuille)
Pull request description:
Part of cluster mempool: #30289
Depends on #30126, and was split off from it. #28676 depends on this.
This adds the algorithms for merging & postprocessing linearizations.
The `PostLinearize(depgraph, linearization)` function performs an in-place improvement of `linearization`, using two iterations of the [Linearization post-processing](https://delvingbitcoin.org/t/linearization-post-processing-o-n-2-fancy-chunking/201/8) algorithm. The first running from back to front, the second from front to back.
The `MergeLinearizations(depgraph, linearization1, linearization2)` function computes a new linearization for the provided cluster, given two existing linearizations for that cluster, which is at least as good as both inputs. The algorithm is described at a high level in [merging incomparable linearizations](https://delvingbitcoin.org/t/merging-incomparable-linearizations/209).
For background and references, see [Introduction to cluster linearization](https://delvingbitcoin.org/t/introduction-to-cluster-linearization/1032).
ACKs for top commit:
sdaftuar:
ACK bbcee5a0d6
glozow:
code review ACK bbcee5a0d6
instagibbs:
ACK bbcee5a0d6
Tree-SHA512: d2b5a3f132d1ef22ddf9c56421ab8b397efe45b3c4c705548dda56f5b39fe4b8f57a0d2a4c65b338462d80bb5b9b84a9a39efa1b4f390420a8005ce31817774e
73e3fa10b4 doc + test: Correct uint256 hex string endianness (Hodlinator)
Pull request description:
This PR is a follow-up to #30436.
Only changes test-code and modifies/adds comments.
Byte order of hex string representation was wrongfully documented as little-endian, but are in fact closer to "big-endian" (endianness is a memory-order concept rather than a numeric concept). `[arith_]uint256` both store their data in arrays with little-endian byte order (`arith_uint256` has host byte order within each `uint32_t` element).
**uint256_tests.cpp** - Avoid using variable from the left side of the condition in the right side. Credits to @maflcko: https://github.com/bitcoin/bitcoin/pull/30436#discussion_r1688273553
**setup_common.cpp** - Skip needless ArithToUint256-conversion. Credits to @stickies-v: https://github.com/bitcoin/bitcoin/pull/30436#discussion_r1688621638
---
<details>
<summary>
## Logical reasoning for endianness
</summary>
1. Comparing an `arith_uint256` (`base_uint<256>`) to a `uint64_t` compares the beginning of the array, and verifies the remaining elements are zero.
```C++
template <unsigned int BITS>
bool base_uint<BITS>::EqualTo(uint64_t b) const
{
for (int i = WIDTH - 1; i >= 2; i--) {
if (pn[i])
return false;
}
if (pn[1] != (b >> 32))
return false;
if (pn[0] != (b & 0xfffffffful))
return false;
return true;
}
```
...that is consistent with little endian ordering of the array.
2. They have the same endianness (but `arith_*` has host-ordering of each `uint32_t` element):
```C++
arith_uint256 UintToArith256(const uint256 &a)
{
arith_uint256 b;
for(int x=0; x<b.WIDTH; ++x)
b.pn[x] = ReadLE32(a.begin() + x*4);
return b;
}
```
### String conversions
The reversal of order which happens when converting hex-strings <=> uint256 means strings are actually closer to big-endian, see the end of `base_blob<BITS>::SetHexDeprecated`:
```C++
unsigned char* p1 = m_data.data();
unsigned char* pend = p1 + WIDTH;
while (digits > 0 && p1 < pend) {
*p1 = ::HexDigit(trimmed[--digits]);
if (digits > 0) {
*p1 |= ((unsigned char)::HexDigit(trimmed[--digits]) << 4);
p1++;
}
}
```
Same reversal here:
```C++
template <unsigned int BITS>
std::string base_blob<BITS>::GetHex() const
{
uint8_t m_data_rev[WIDTH];
for (int i = 0; i < WIDTH; ++i) {
m_data_rev[i] = m_data[WIDTH - 1 - i];
}
return HexStr(m_data_rev);
}
```
It now makes sense to me that `SetHexDeprecated`, upon receiving a shorter hex string that requires zero-padding, would pad as if the missing hex chars where towards the end of the little-endian byte array, as they are the most significant bytes. "Big-endian" string representation is also consistent with the case where `SetHexDeprecated` receives too many hex digits and discards the leftmost ones, as a form of integer narrowing takes place.
### How I got it wrong in #30436
Previously I used the less than (`<`) comparison to prove endianness, but for `uint256` it uses `memcmp` and thereby gives priority to the *lower* bytes at the beginning of the array.
```C++
constexpr int Compare(const base_blob& other) const { return std::memcmp(m_data.data(), other.m_data.data(), WIDTH); }
```
`arith_uint256` is different in that it begins by comparing the bytes from the end, as it is using little endian representation, where the bytes toward the end are more significant.
```C++
template <unsigned int BITS>
int base_uint<BITS>::CompareTo(const base_uint<BITS>& b) const
{
for (int i = WIDTH - 1; i >= 0; i--) {
if (pn[i] < b.pn[i])
return -1;
if (pn[i] > b.pn[i])
return 1;
}
return 0;
}
```
(The commit documents that `base_blob::Compare()` is doing lexicographic ordering unlike the `arith_*`-variant which is doing numeric ordering).
</details>
ACKs for top commit:
paplorinc:
ACK 73e3fa10b4
ryanofsky:
Code review ACK 73e3fa10b4
Tree-SHA512: 121630c37ab01aa7f7097f10322ab37da3cbc0696a6bbdbf2bbd6db180dc5938c7ed91003aaa2df7cf4a4106f973f5118ba541b5e077cf3588aa641bbd528f4e
a7432dd6ed logging: clarify -debug and -debugexclude descriptions (Anthony Towns)
74dd33cb0a rpc: make logging method reject "0" category and correct the help text (Vasil Dimov)
8c6f3bf163 logging, refactor: minor encapsulation improvement and use BCLog::NONE instead of 0 (Vasil Dimov)
160706aa38 logging, refactor: make category special cases explicit (Ryan Ofsky)
Pull request description:
* Move special cases from `LOG_CATEGORIES_BY_STR` to `GetLogCategory()` (suggested [here](https://github.com/bitcoin/bitcoin/pull/29419#discussion_r1547990373)).
* Remove `"none"` and `"0"` from RPC `logging` help because that help text was wrong. `"none"` resulted in an error and `"0"` was ignored itself (contrary to what the help text suggested).
* Remove unused `LOG_CATEGORIES_BY_STR[""]` (suggested [here](https://github.com/bitcoin/bitcoin/pull/29419#discussion_r1548018694)).
This is a followup to https://github.com/bitcoin/bitcoin/pull/29419, addressing leftover suggestions + more.
ACKs for top commit:
LarryRuane:
ACK a7432dd6ed
ryanofsky:
Code review ACK a7432dd6ed. Only changes since last review are removing dead if statement and adding AJ's suggested -debug and -debugexclude help improvements, which look accurate and much more clear.
Tree-SHA512: 41b997b06fccdb4c1d31f57d4752c83caa744cb3280276a337ef4a9b7012a04eb945071db6b8fad24c6a6cf8761f2f800fe6d8f3d8836f5b39c25e4f11c85bf0
Current logging RPC method documentation claims to accept "0" and "none"
categories, but the "none" argument is actually rejected and the "0"
argument is ignored. Update the implementation to refuse both
categories, and remove the help text claiming to support them.
* Make the standalone function `LogCategoryToStr()` private inside
`logging.cpp` (aka `static`) - it is only used in that file.
* Make the method `Logger::GetLogPrefix()` `private` - it is only
used within the class.
* Use `BCLog::NONE` to initialize `m_categories` instead of `0`.
We later check whether it is `BCLog::NONE` (in
`Logger::DefaultShrinkDebugFile()`).
Make special cases explicit in GetLogCategory() and LogCategoryToStr()
functions. Simplify the LOG_CATEGORIES_BY_STR and LOG_CATEGORIES_BY_FLAG
mappings and LogCategoriesList() function.
This makes the maps `LOG_CATEGORIES_BY_STR` and `LOG_CATEGORIES_BY_FLAG`
consistent (one is exactly the opposite of the other).
Follow-up to #30436.
uint256 string representation was wrongfully documented as little-endian due to them being reversed by GetHex() etc, and base_blob::Compare() giving most significance to the beginning of the internal array. They are closer to "big-endian", but this commit tries to be even more precise than that.
uint256_tests.cpp - Avoid using variable from the left side of the condition in the right side.
setup_common.cpp - Skip needless ArithToUint256-conversion.
75648cea5a test: add P2A ProduceSignature coverage (Greg Sanders)
7998ce6b20 Add release note for P2A output feature (Greg Sanders)
71c9b02a04 test: add P2A coverage for decodescript (Greg Sanders)
1349e9ec15 test: Add anchor mempool acceptance test (Greg Sanders)
9d89209937 policy: stop 3rd party wtxid malleability of anchor spend (Greg Sanders)
b60aaf8b23 policy: make anchor spend standard (Greg Sanders)
455fca86cf policy: Add OP_1 <0x4e73> as a standard output type (Greg Sanders)
Pull request description:
This is a sub-feature taken out of the original proposal for ephemeral anchors #30239
This PR makes *spending* of `OP_1 <0x4e73>` (i.e. `bc1pfeessrawgf`) standard. Creation of this output type is already standard.
Any future witness output types are considered relay-standard to create, but not to spend. This preserves upgrade hooks, such as a completely new output type for a softfork such as BIP341. It also gives us a bit of room to use a new output type for policy uses.
This particular sized witness program has no other known use-cases (https://bitcoin.stackexchange.com/a/110664/17078), s it affords insufficient cryptographic security for a secure commitment to data, such as a script or a public key. This makes this type of output "keyless", or unauthenticated.
As a witness program, the `scriptSig` of the input MUST be blank, by BIP141. This helps ensure txid-stability of the spending transaction, which may be required for smart contracting wallets. If we do not use segwit, a miner can simply insert an `OP_NOP` in the `scriptSig` without effecting the result of program execution.
An additional relay restriction is to disallow non-empty witness data, which an adversary may use to penalize the "honest" transactor when RBF'ing the transaction due to the incremental fee requirement of RBF rules.
The intended use-case for this output type is to "anchor" the transaction with a spending child to bring exogenous CPFP fees into the transaction package, encouraging the inclusion of the package in a block. The minimal size of creation and spending of this output makes it an attractive contrast to outputs like `p2sh(OP_TRUE)` and `p2wsh(OP_TRUE)` which
are significantly larger in vbyte terms.
Combined with TRUC transactions which limits the size of child transactions significantly, this is an attractive option for presigned transactions that need to be fee-bumped after the fact.
ACKs for top commit:
sdaftuar:
utACK 75648cea5a
theStack:
re-ACK 75648cea5a
ismaelsadeeq:
re-ACK 75648cea5a via [diff](e7ce6dc070..75648cea5a)
glozow:
ACK 75648cea5a
tdb3:
ACK 75648cea5a
Tree-SHA512: d529de23d20857e6cdb40fa611d0446b49989eaafed06c28280e8fd1897f1ed8d89a4eabbec1bbf8df3d319910066c3dbbba5a70a87ff0b2967d5205db32ad1e
189c987386 Showing local addresses on the Node Window (Jadi)
a5d7aff867 net: Providing an interface for mapLocalHost (Jadi)
Pull request description:
This change adds a new row to the Node Window (debugwindow.ui)
under the Network section which shows the LocalAddresses.
fixes#564
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ACKs for top commit:
pablomartin4btc:
re-ACK 189c987386
furszy:
utACK 189c987
Tree-SHA512: 93f201bc6d21d81b27b87be050a447b841f01e3efb69b9eca2cc7af103023d7cd69eb5e16e2875855573ef51a5bf74a6ee6028636c1b6798cb4bb11567cb4996
fa46a1b74b test: Avoid CScript() as default function argument (MarcoFalke)
fadf621825 test: Make leaf_script mandatory when scriptpath is set in TaprootSignatureMsg (MarcoFalke)
Pull request description:
Unlike other function calls in default arguments, CScript should not cause any issues in the tests, because they are const.
However, this change allows to enable the "function-call-in-default-argument (B008)" lint rule, which will help to catch severe test bugs, such as https://github.com/bitcoin/bitcoin/issues/30543#issuecomment-2259260024 .
The lint rule will be enabled in a follow-up, when all violations are fixed.
ACKs for top commit:
instagibbs:
utACK fa46a1b74b
theStack:
lgtm ACK fa46a1b74b
ismaelsadeeq:
Tested ACK fa46a1b74b
Tree-SHA512: bc68b15121d50ead0fc70ad772360a7829908aedeaff8426efcb8a67f33117f67d26b4f5da94fa735dd8de9c9ff65fc10a29323f1b12f238b75486fa7cc32a89
Move `SetKeyFromPassphrase` to out of LIMITED_WHILE,
remove `SetKey` calls since it is already called
internally by other functions and reduce the number
of iterations.
faed533743 test: Disable known broken USDT test for now (MarcoFalke)
Pull request description:
(cherry picked from commit faf8be7c32)
Sadly, it still happens: https://github.com/bitcoin/bitcoin/issues/27380#issuecomment-2265205214
ACKs for top commit:
fanquake:
ACK faed533743
Tree-SHA512: 7108c468efd31a1f062646b7b21d69ddaaa9808cdc44db75c78d7a840830f85d016d4a95571c239402f0b6639b714224720182bcda8f53b147a0be06cfbd2b25
7231c7630e qt: Replace deprecated LogPrintf with LogInfo in GUIUtil::LogQtInfo() (Hennadii Stepanov)
b3d3ae0680 qt, build: Drop `QT_STATICPLUGIN` macro (Hennadii Stepanov)
Pull request description:
Broken out of https://github.com/bitcoin/bitcoin/pull/30454.
Our `QT_STATICPLUGIN` macro is effectively equivalent to the Qt's `QT_STATIC` macro.
It is easy to see in the `_BITCOIN_QT_IS_STATIC` macro implementation: ebd82fa9fa/build-aux/m4/bitcoin_qt.m4 (L269-L292)
No need to handle both macros.
ACKs for top commit:
maflcko:
re-ACK 7231c7630e
TheCharlatan:
ACK 7231c7630e
Tree-SHA512: abbf21859b7ac2aaf47c5b0e075403e4cc9bc540b1565d23f51650b8932dde314586aca67fd4ed5daadebc89268baf8c18f65348fa2b836078ac24543c14cfd6
2e86f2b201 rpc: fix maybe-uninitialized compile warning in getchaintxstats (Michael Dietz)
Pull request description:
This resolves the compiler warning about potential uninitialized use of window_tx_count introduced in fa2dada.
The warning:
```
CXX rpc/libbitcoin_node_a-blockchain.o
rpc/blockchain.cpp: In function ‘getchaintxstats()::<lambda(const RPCHelpMan&, const JSONRPCRequest&)>’:
rpc/blockchain.cpp:1742:38: warning: ‘*(std::_Optional_payload_base<unsigned int>::_Storage<unsigned int, true>*)((char*)&window_tx_count + offsetof(const std::optional<unsigned int>,std::optional<unsigned int>::<unnamed>.std::_Optional_base<unsigned int, true, true>::<unnamed>)).std::_Optional_payload_base<unsigned int>::_Storage<unsigned int, true>::_M_value’ may be used uninitialized in this function [-Wmaybe-uninitialized]
1742 | ret.pushKV("txrate", double(*window_tx_count) / nTimeDiff);
|
```
ACKs for top commit:
maflcko:
lgtm ACK 2e86f2b201
theStack:
ACK 2e86f2b201
tdb3:
ACK 2e86f2b201
Tree-SHA512: c087e8f1cd68dd8df734a8400d30a95abe57ebd56cd53aef4230e425b33a23aa55b3af42abfd162e3be8c937a4c27e56abb70a4fedb10e2df64d52d577e0f262
Contributes to #564 by providing an interface for mapLocalHost
through net -> node interface -> clientModel. Later this value can be
read by GUI to show the local addresses.
When the transactions being marked done exactly match the first chunk of
what remains of the linearization, we can just remember to skip that
chunk instead of computing a full rechunking.
Further, chop off prefixes of the input linearization that are already done,
so they don't need to be reconsidered for further rechunkings.
be419674da qt: Update translation source file (Hennadii Stepanov)
e49d858aab qt: Bump Transifex slug for 28.x (Hennadii Stepanov)
31b33019b7 qt: Pull recent translations from Transifex (Hennadii Stepanov)
Pull request description:
This PR follows our [Release Process](4c62f4b535/doc/release-process.md).
Note: (possible) vandalism/damage has been prevented by reverting the deletion of `bitcoin_af`, `bitcoin_es_MX`, and `bitcoin_ru` translations.
Required to open Transifex translations for v28.0 as it's scheduled in https://github.com/bitcoin/bitcoin/issues/29891.
The previous similar PR: https://github.com/bitcoin/bitcoin/pull/29397.
ACKs for top commit:
stickies-v:
ACK be419674da
Tree-SHA512: 76f7947af9c156c2aaf24c7f926f82e4d8e2664beb5ebde5c7cda8dd7a8dbf672b4a886302c8d189e0cb2145c0ed755f45f9cdb545e29d38bb1ec90ca18fa539
f553e6d86f refactor: remove TxidFromString (stickies-v)
285ab50ace test: replace WtxidFromString with Wtxid::FromHex (stickies-v)
9a0b2a69c4 fuzz: increase FromHex() coverage (stickies-v)
526a87ba6b test: add uint256::FromHex unittest coverage (stickies-v)
Pull request description:
Since fab6ddbee6, `TxidFromString()` has been deprecated because it is less robust than the `transaction_identifier::FromHex()` introduced in [the same PR](https://github.com/bitcoin/bitcoin/pull/30482). Specifically, it tries to recover from length-mismatches, recover from untrimmed whitespace, 0x-prefix and garbage at the end, instead of simply requiring exactly 64 hex-only characters.
In this PR, `TxidFromString` is removed completely to clean up the code and prevent further unsafe usage. Unit and fuzz test coverage on `uint256::FromHex()` and functions that wrap it is increased.
Note: `TxidFromSring` allowed users to prefix strings with "0x", this is no longer allowed for `transaction_identifier::FromHex()`, so a helper function for input validation may prove helpful in the future _(this overlaps with the `uint256::uint256S()` vs `uint256::FromHex()` future cleanup)_. It is not relevant to this PR, though, besides the fact that this unused (except for in tests) functionality is removed.
The only users of `TxidFromString` are:
- `test`, where it is straightforward to drop in the new `FromHex()` methods without much further concern
- `qt` coincontrol. There is no need for input validation here, but txids are not guaranteed to be 64 characters. This is already handled by the existing code, so again, using `FromHex()` here seems quite straightforward.
Addresses @maflcko's suggestion: https://github.com/bitcoin/bitcoin/pull/30482#discussion_r1691826934
Also removes `WtxidFromString()`, which is a test-only helper function.
### Testing GUI changes
To test the GUI coincontrol affected lines, `regtest` is probably the easiest way to quickly get some test coins, you can use e.g.
```
alias cli="./src/bitcoin-cli -regtest"
cli createwallet "coincontrol"
# generate 10 spendable outputs on 1 address
cli generatetoaddress 10 $(cli -rpcwallet=coincontrol getnewaddress)
# generate 10 spendable outputs on another address
cli generatetoaddress 10 $(cli -rpcwallet=coincontrol getnewaddress)
# make previous outputs spendable
cli generatetoaddress 100 $(cli -rpcwallet=coincontrol getnewaddress)
```
ACKs for top commit:
maflcko:
re-ACK f553e6d86f🔻
hodlinator:
ACK f553e6d86f
paplorinc:
ACK f553e6d86f
TheCharlatan:
Nice, ACK f553e6d86f
Tree-SHA512: c1c7e6ea4cbf05cf660ba178ffc4f35f0328f7aa6ad81872e2462fb91a6a22e4681ff64b3d0202a5a9abcb650c939561585cd309164a69ab6081c0765ee271ef
89b1d5c818 depends: Fix `zeromq` build on OpenBSD (Hennadii Stepanov)
Pull request description:
On the master branch @ 66e82dc90c, the `zeromq` package fails to build on OpenBSD 7.5:
```
[ 19%] Building CXX object CMakeFiles/objects.dir/src/io_thread.cpp.o
/home/hebasto/bitcoin/depends/work/build/amd64-unknown-openbsd7.5/zeromq/4.3.5-df5b1b9f936/src/io_thread.cpp:14:22: error: static_cast from 'std::nullptr_t' to 'poller_t::handle_t' (aka 'int') is not allowed
_mailbox_handle (static_cast<poller_t::handle_t> (NULL))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
```
This [regression](https://github.com/bitcoin/bitcoin/pull/29723#issuecomment-2261513105) was overlooked by me in https://github.com/bitcoin/bitcoin/pull/29723.
This PR fixes the issue by backporting an upstream commit from https://github.com/zeromq/libzmq/pull/4659.
ACKs for top commit:
theStack:
tACK 89b1d5c818
Tree-SHA512: 48d22ea99dfd44c5adf858c74e64082390da27b8ccad8c0d5a91d4dabfa3d12267cef98e4bb8c088e4cd0ec477c242cb1d47aace5c88cd86f796715bba957ed8
afd237bb5d [fuzz] Harness for version handshake (dergoegge)
a90ab4aec9 scripted-diff: Rename lazily initialized bloom filters (dergoegge)
82de1bc478 [net processing] Lazily initialize m_recent_confirmed_transactions (dergoegge)
fa0c87f19c [net processing] Lazily initialize m_recent_rejects_reconsiderable (dergoegge)
662e8db2d3 [net processing] Lazily initialize m_recent_rejects (dergoegge)
Pull request description:
This adds a fuzzing harness dedicated to the version handshake. To avoid determinism issues, the harness creates necessary components each iteration (addrman, peerman, etc). A harness like this would have easily caught https://bitcoincore.org/en/2024/07/03/disclose-timestamp-overflow/.
As a performance optimization, this PR includes a change to `PeerManager` to lazily initialize various filters (to avoid large unnecessary memory allocations each iteration).
ACKs for top commit:
brunoerg:
ACK afd237bb5d
marcofleon:
Tested ACK afd237bb5d. I compared the coverage of `net_processing` from this harness to the `process_message` and `process_messages` harnesses to see the differences. This target hits more specific parts of the version handshake. The stability looks good as well, at about 94%.
glozow:
utACK afd237bb5d lazy blooms look ok
mzumsande:
Code Review ACK afd237bb5d
Tree-SHA512: 62bba20aec0cd220e62368354891f9790b81ad75e8adf7b22a76a6d4663bd26aedc4cae8083658a75ea9043d60aad3f0e58ad36bd7bbbf93ff1d16e317bf15cc
3cd24aadb2 doc: remove obsolete mention and link to closed PR (Marnix)
Pull request description:
Remove the mention and link as the PR (https://github.com/bitcoin/bitcoin/pull/22341) is closed and the description is wrong/outdated anyway.
ACKs for top commit:
BrandonOdiwuor:
ACK 3cd24aadb2
tdb3:
ACK 3cd24aadb2
Tree-SHA512: 5cd97029337f0cdfe81b6be9401adc4fe51ae2868f8fcadcb03828531a38380a587c32840850a924b6428f62df7d20a1e16ef7414d4078e7bb2c4e359b1fae40
