29854 Commits

Author SHA1 Message Date
MarcoFalke
fa80cd3cee
test: [refactor] Avoid calling private ProcessMessage() function
Calling this low-level function from tests is confusing, and also makes
it harder to change the peer manager implementation.

So juse use the pre-existing test helpers to achieve the same.
2026-01-27 15:13:26 +01:00
merge-script
27aeeff630
Merge bitcoin/bitcoin#34328: rpc: make uptime monotonic across NTP jumps
14f99cfe53f07280b6f047844fc4fba0da8cd328 rpc: make `uptime` monotonic across NTP jumps (Lőrinc)
a9440b1595be7053b17895f7ee36652bac24be6e util: add `TicksSeconds` (Lőrinc)

Pull request description:

  ### Problem
  `bitcoin-cli uptime` was derived from wall-clock time, so it could jump by large amounts when the system clock is corrected after `bitcoind` starts (e.g. on RTC-less systems syncing NTP).
  This breaks the expectation that uptime reflects process runtime.

  ### Fix
  Compute uptime from a [monotonic clock](https://en.cppreference.com/w/cpp/chrono/steady_clock.html) so it is immune to wall-clock jumps, and use that monotonic uptime for the RPC.
  GUI startup time is derived from wall clock time minus monotonic uptime so it remains sensible after clock corrections.

  ### Reproducer
  Revert the fix commit and run the `rpc_uptime` functional test (it should fail with `AssertionError: uptime should not jump with wall clock`):

  Or alternatively:

  ```bash
  cmake -B build && cmake --build build --target bitcoind bitcoin-cli -j$(nproc)
  DATA_DIR=$(mktemp -d)
  ./build/bin/bitcoind -regtest -datadir="$DATA_DIR" -connect=0 -daemon
  ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" -rpcwait uptime
  sleep 1
  ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" setmocktime $(( $(date +%s) + 20000000 ))
  ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" uptime
  ./build/bin/bitcoin-cli -regtest -datadir="$DATA_DIR" stop
  ```

  <details>
  <summary>Before (uptime jumps with wall clock)</summary>

  ```bash
  Bitcoin Core starting
  0
  20000001
  Bitcoin Core stopping
  ```

  </details>

  <details>
  <summary>After (uptime stays monotonic)</summary>

  ```bash
  Bitcoin Core starting
  0
  1
  Bitcoin Core stopping
  ```
  </details>

  ----------

  Issue: https://github.com/bitcoin/bitcoin/issues/34326

ACKs for top commit:
  maflcko:
    review ACK 14f99cfe53f07280b6f047844fc4fba0da8cd328 🎦
  willcl-ark:
    tACK 14f99cfe53f07280b6f047844fc4fba0da8cd328
  w0xlt:
    ACK 14f99cfe53f07280b6f047844fc4fba0da8cd328
  sedited:
    ACK 14f99cfe53f07280b6f047844fc4fba0da8cd328

Tree-SHA512: 3909973f58666ffa0b784a6df087031b9e34d2022d354900a4dbb6cbe1d36285cd92770ee71350ebf64d6e8ab212d8ff0cd851f7dca1ec46ee2f19b417f53984
2026-01-27 13:26:43 +01:00
merge-script
f970cb39fb
Merge bitcoin/bitcoin#34267: net: avoid unconditional privatebroadcast logging (+ warn for debug logs)
b39291f4cde03d5aa7936bf5aa7cc4fa18f65cad doc: fix `-logips` description to clarify that non-debug logs can also contain IP addresses (Lőrinc)
c7028d3368e90fef2dd2a7ae68877767d602eff0 init: log that additional logs may contain privacy-sensitive information (Lőrinc)
31b771a9425dace38582e0de0fb468f388df170c net: move `privatebroadcast` logs to debug category (Lőrinc)

Pull request description:

  ### Motivation
  The recently merged [private broadcast](https://github.com/bitcoin/bitcoin/pull/29415) is a privacy feature, and users may share `debug.log` with support.
  Unconditional `LogInfo()` messages that mention private broadcast and/or include (w)txids can leak sensitive context (e.g. which transactions a user originated).
  Since it's meant to be a private broadcast, we should minimize leaks.
  It's a best effort, it's not invalidated by other logs possibly leaking identifiable information, those can be addressed separately.
  We're not promising that the logs won't ever contain data that could be used against the user, but we should still try to minimize that data, especially for a feature that's advertised as privacy-focused.

  Follow up to [#29415 (comment)](https://github.com/bitcoin/bitcoin/pull/29415#discussion_r2637012294)

  ### Changes
  * Move private-broadcast event logs from `LogInfo()` to `LogDebug(BCLog::PRIVBROADCAST, ...)`, so they are only emitted when `-debug=privatebroadcast` was explicitly provided.
  * Remove hardcoded `"[privatebroadcast]"` log-string prefixes (category logging already adds the prefix).
  * Keep warning at the default log level for startup failures.
  * Add an init log (not a warning since that would require excessive test framework updates) when any `-debug` categories are enabled that additional logs may contain privacy-sensitive information and should not be shared publicly.
  * Update a related startup arg (`-logips`) to clarify that clarify that non-debug logs can also contain IP addresses.

  ### Reproducer
  The new warning can be checked with:
  ```bash
  ./build/bin/bitcoind -printtoconsole=1 -stopatheight=1 -listen=0 -connect=0 | grep 'Debug logging is enabled' | wc -l
         0
  ./build/bin/bitcoind -printtoconsole=1 -stopatheight=1 -listen=0 -connect=0 -debug | grep 'Debug logging is enabled' | wc  -l
         1
  ```

ACKs for top commit:
  janb84:
    re ACK b39291f4cde03d5aa7936bf5aa7cc4fa18f65cad
  vasild:
    ACK b39291f4cde03d5aa7936bf5aa7cc4fa18f65cad
  andrewtoth:
    ACK b39291f4cde03d5aa7936bf5aa7cc4fa18f65cad
  frankomosh:
    crACK b39291f4cde03d5aa7936bf5aa7cc4fa18f65cad .The approach and implementation look good. Moving private broadcast logs to debug only would effectively reduce privacy leaks for users sharing logs.
  sedited:
    ACK b39291f4cde03d5aa7936bf5aa7cc4fa18f65cad

Tree-SHA512: feca25ebe72a03948ba436e25f9a682947966c4c09627e8f20201ef3872ddbce1c636cd82f06be1afdc09cb80da305058667c0c2eaeadeb351311155325ea06f
2026-01-27 12:59:33 +01:00
merge-script
34a5ecadd7
Merge bitcoin/bitcoin#34397: doc: fix arg name hints so bugprone can validate them
a73a3ec5532ddc05c1b013d868d9994f2889c9cf doc: fix invalid arg name hints for bugprone validation (Lőrinc)

Pull request description:

  The extra leading `=` or missing trailing `=` prevented clang-tidy's `bugprone-argument-comment` check from validating the parameter name, as it only matches comments formatted strictly as `/*parameter_name=*/` (see https://clang.llvm.org/extra/clang-tidy/checks/bugprone/argument-comment.html).

  I have considered doing a scripted diff, but the values I found aren't so numerous and can easily be reviewed manually.

ACKs for top commit:
  b-l-u-e:
    ACK a73a3ec tested and saw that argument comments now use the strict "/*param=*/"  format required by bugprone-argument-comment
  Sjors:
    utACK a73a3ec5532ddc05c1b013d868d9994f2889c9cf
  maflcko:
    review ACK a73a3ec5532ddc05c1b013d868d9994f2889c9cf 🍦

Tree-SHA512: 31177934d645116f381668a0f945028d7e04fab1fc6185dd0e3b7451aab71f89f1e4dd07246db667d1c4734eea3e5d73433c8b0e09181b3ece47dacc8677401e
2026-01-26 16:51:15 +00:00
merge-script
2778eb4664
Merge bitcoin/bitcoin#34337: fuzz: Return chrono point from ConsumeTime(), Add ConsumeDuration()
eeee3755f8c415b227820479b5492261f3a8aa08 fuzz: Return chrono point from ConsumeTime(), Add ConsumeDuration() (MarcoFalke)
faa5a9ebad15fe41e8ddf45f11ad72bdc5aabf99 fuzz: Use min option in ConsumeTime (MarcoFalke)

Pull request description:

  Returning a raw i64 is a bit confusing when it comes to chrono types. For example, in the addrman fuzz tests, the `time_penalty` is not a time point, but a duration.

  Also, all call-sites assume second resolution right now, so document that better by returning `NodeSeconds` from `ConsumeTime(...)` and `std::chrono::seconds` from `ConsumeDuration(...)`.

ACKs for top commit:
  l0rinc:
    ACK eeee3755f8c415b227820479b5492261f3a8aa08
  Crypt-iQ:
    crACK eeee3755f8c415b227820479b5492261f3a8aa08

Tree-SHA512: 25dd779a1bf79fa42c6e69db0f0593ad4daa4c0d746e8e82a26bdd65391a27c38e484431056d4e2207b542c511a71cb536c259809728a7166b8d304c0490e321
2026-01-26 11:36:24 +00:00
merge-script
d70fb8a575
Merge bitcoin/bitcoin#34351: util: Remove FilterHeaderHasher
ccf9172ab3bbd6d6979acb9b02bc36ca55ab031f util: Remove `FilterHeaderHasher` (rustaceanrob)

Pull request description:

  With respect to `std::unordered_map` documentation, the `Hash` type
  defined in the template is over the `Key` and not `T`, the value. This
  hasher is incorrectly named as the `FilterHeader` is the value within this map.
  I consider this a bug as opposed to a refactor as the key and value
  relationship is implied to be `filter header -> block hash` when it is
  the opposite.

  Further, the hasher for the key already exists via `BlockHasher`.

  ref: https://en.cppreference.com/w/cpp/container/unordered_map.html

ACKs for top commit:
  andrewtoth:
    ACK ccf9172ab3bbd6d6979acb9b02bc36ca55ab031f
  maflcko:
    lgtm ACK ccf9172ab3bbd6d6979acb9b02bc36ca55ab031f
  ismaelsadeeq:
    ACK ccf9172ab3bbd6d6979acb9b02bc36ca55ab031f 👍🏾

Tree-SHA512: 607602391bf337d4e25b04a6a643fa32c3ab4599009b181b46ecdb0705e8ff2af89a6192042453c9e8e44abcb2150589019f02c5c944ecdff41322c3e0ad45ac
2026-01-26 10:17:35 +00:00
Hennadii Stepanov
5f66fca633
Merge bitcoin-core/gui#920: Set peer version and subversion to N/A when not available or detecting
b261100e71697dd4859cdeb5a69f5a1d6c557099 [qt] Set peer version and subversion to N/A when not available or detecting (WakeTrainDev)

Pull request description:

  In the debug console peer detail window, display "N/A" for the User Agent and Version when the peer is still detecting or the information is unavailable, instead of retaining the previous values.

ACKs for top commit:
  maflcko:
    lgtm ACK b261100e71697dd4859cdeb5a69f5a1d6c557099
  luke-jr:
    utACK b261100e71697dd4859cdeb5a69f5a1d6c557099

Tree-SHA512: ffcba716fe6173062fe00e2d428d41bbdcaebfe8c76c804519e46a448ade2785ae32efb1a30322adc19cf29e07ea8ab4d7593ef5a17b6c418c8dd77b381e4f77
2026-01-25 14:23:05 +00:00
Lőrinc
a73a3ec553
doc: fix invalid arg name hints for bugprone validation
The extra leading `=` or missing trailing `=` prevented clang-tidy's `bugprone-argument-comment` check from validating the parameter name, as it only matches comments formatted strictly as `/*arg=*/` (see https://clang.llvm.org/extra/clang-tidy/checks/bugprone/argument-comment.html).
2026-01-24 00:44:22 +01:00
merge-script
5b8c204275
Merge bitcoin/bitcoin#34384: Remove epoch logic from mempool
40735450c00b10baa03e3a7f1e2bee439077e356 Remove unused epochguard.h (Suhas Daftuar)
1a8494d16c7b1c21dec384438c18ac08a469bb61 Rework CTxMemPool::GetChildren() to not use epochs (Suhas Daftuar)

Pull request description:

  Since #33591, the epoch-based graph traversal optimization logic is only used for `CTxMempool::GetChildren()`, a function that is only used in RPC code and tests. Rewrite it without epochs, and remove `util/epochguard.h` itself, as that was its last use.

  This allows us to reduce per-transaction memory usage by 8 bytes, for no material loss. With the new TxGraph-based mempool implementation, I also don't foresee future uses for it, as TxGraph can do even better by using BitSet-based traversal tracking.

ACKs for top commit:
  ajtowns:
    ACK 40735450c00b10baa03e3a7f1e2bee439077e356
  instagibbs:
    ACK 40735450c00b10baa03e3a7f1e2bee439077e356
  l0rinc:
    code review ACK 40735450c00b10baa03e3a7f1e2bee439077e356

Tree-SHA512: 7ce7c04835cd2425a71c4fd47f316b6fb7381caa27383de7ecc4aa81100fcf7bc5e062699b307c08e0b853b35f06710d9ac761d6e660af9f9331e708d36f2fe0
2026-01-23 15:10:54 +00:00
MarcoFalke
eeee3755f8
fuzz: Return chrono point from ConsumeTime(), Add ConsumeDuration()
A chrono time point is a bit more type-safe than a raw i64.

Also, add a dedicated helper for plain chrono durations.
2026-01-23 15:59:07 +01:00
merge-script
891030ac8b
Merge bitcoin/bitcoin#33822: kernel: Add block header support and validation
9a9d797ef6ed8e1b3e876fc93cf1a6395ab270e9 kernel: Add support for block headers (yuvicc)
b851ff6cae71934bf2389d109908339d60ec6e5b  kernel: Add Handle/View pattern for BlockValidationState (yuvicc)

Pull request description:

  Adds a new `btck_BlockHeader` type and associated functions to create, access, and validate block headers. Block headers will have their own type (`btck_BlockHeader`) that can be created from raw data, copied, and queried for all the standard header fields (hash, prev hash, timestamp, bits, version, nonce). We can also extract headers from full blocks or block tree entries.

  The first commit here refactors `BlockValidationState` to use Handle/View pattern so external code can own them, which is required for the header processing in the API.

   #### New Block Header API

    - **`btck_BlockHeader` type**: Opaque handle for block headers
    - **Header methods**:
      - `btck_block_header_create()`: Create header from 80-byte serialized data
      - `btck_block_header_copy()`: Copy block headers
      - `btck_block_header_destroy()`: Destroy header object
      - `btck_block_header_get_hash()`: Calculate block hash
      - `btck_block_header_get_prev_hash()`: Get previous block hash
      - `btck_block_header_get_timestamp()`: Get block timestamp
      - `btck_block_header_get_bits()`: Get difficulty target (compact format)
      - `btck_block_header_get_version()`: Get block version
      - `btck_block_header_get_nonce()`: Get proof-of-work nonce

      - `btck_block_get_header()`: Extract header from a full block
      - `btck_block_tree_entry_get_block_header()`: Get header associated with a block tree entry

    - **Header Processing Methods:**
      - **`btck_chainstate_manager_process_block_header()`**: Validates and processes a block header without requiring the full block. This performs proof-of-work verification, timestamp validation, and updates the internal chain state.
      - **`btck_chainstate_manager_get_best_entry()`**: Returns the block tree entry with the most cumulative proof-of-work.

  Why `btck_chainstate_manager_get_best_entry()` is included alongside header validation? Just as we have logic to get the tip for block validation (so you can request more blocks extending your best from your peers), we need the equivalent for header validation. To make header validation worthwhile, knowing what the best current header is seems useful—it tells you what headers to request next from peers.

    ### Testing

    Added tests in `test_kernel.cpp` that cover creating headers from raw data, extracting all header fields, and processing headers through the chainstate manager.

    CC sedited

ACKs for top commit:
  stringintech:
    re-ACK 9a9d797e
  sedited:
    Re-ACK 9a9d797ef6ed8e1b3e876fc93cf1a6395ab270e9
  janb84:
    ACK 9a9d797ef6ed8e1b3e876fc93cf1a6395ab270e9

Tree-SHA512: 1dde9ef860543c906d1bb5e604f0d2956e7382fcbb55090686261b2277270a1fd3826f02ecf1749b2774da66e88f686c7845172b4c68b62259e7a7aee0825fa2
2026-01-23 13:04:05 +00:00
merge-script
0871e104a2
Merge bitcoin/bitcoin#34242: Prepare string and net utils for future HTTP operations
1911db8c6dc6b32c8971b14b2b271ec39d9f3ab9 string: add LineReader (Matthew Zipkin)
ee62405cce2bf3d14117bdb327832f12584968d6 time: implement and test RFC1123 timestamp string (Matthew Zipkin)
eea38787b9be99c3f192cb83fc18358397e4ab52 string: add AsciiCaseInsensitive{KeyEqual, Hash} for unordered map (Matthew Zipkin)
4e300df7123a402aef472aaaac30907b18a10c27 string: add `base` argument for ToIntegral to operate on hexadecimal (Matthew Zipkin)
0b0d9125c19c04c1fc19fb127d7639ed9ea39bec Modernize GetBindAddress() (Matthew Zipkin)
a0ca851d26f8a9d819708db06fec2465e9f6228c Make GetBindAddress() callable from outside net.cpp (Matthew Zipkin)

Pull request description:

  This is a component of [removing libevent as a dependency of the project](https://github.com/bitcoin/bitcoin/issues/31194). It is the first six commits of #32061 and provides a string-parsing utility (`LineReader`) that is also consumed by #34158.

  These are the functions that are added / updated for HTTP and Torcontrol:

  - `GetBindAddress()`: Given a socket, provides the bound address as a CService. Currently used by p2p but moved from `net` to `netbase` so other modules can call it.
  - `ToIntegral()`: Already used to parse numbers from strings, added new argument `base = 10` so it can also be used to parse hexadecimal integers. HTTP chunked transfer-encoding uses hex-encoded integers to specify payload size: https://datatracker.ietf.org/doc/html/rfc7230.html#section-4.1
  - `AsciiCaseInsensitive` comparators: Needed to store HTTP headers in an `unordered_map`. Headers are key-value pairs that are parsed with case-insensitive keys: https://httpwg.org/specs/rfc9110.html#rfc.section.5.1
  - `FormatRFC1123DateTime()`: The required datetime format for HTTP headers (e.g. `Fri, 31 May 2024 19:18:04 GMT`)
  - `LineReader`: Fields in HTTP requests are newline-terminated. This struct is given an input buffer and provides methods to read lines as strings.

ACKs for top commit:
  maflcko:
    review ACK 1911db8c6dc6b32c8971b14b2b271ec39d9f3ab9 👲
  furszy:
    utACK 1911db8c6dc6b32c8971b14b2b271ec39d9f3ab9
  sedited:
    ACK 1911db8c6dc6b32c8971b14b2b271ec39d9f3ab9

Tree-SHA512: bb8d3b7b18f158386fd391df6d377c9f5b181051dc258efbf2a896c42e20417a1b0b0d4637671ebd2829f6bc371daa15775625af989c19ef8aee76118660deff
2026-01-23 13:25:42 +01:00
merge-script
1b079becf1
Merge bitcoin/bitcoin#34317: fuzz: Exclude too expensive inputs in descriptor_parse targets
fab2f3df4beb230eef63bdcf5042b6417c0012dc fuzz: Exclude too expensive inputs in descriptor_parse targets (MarcoFalke)

Pull request description:

  Accepting "expensive" fuzz inputs which have no real use-case is problematic, because it prevents the fuzz engine from spending time on the next useful fuzz input.

  For example, those will take several seconds (!) and the flamegraph shows that base58 encoding is the cause:

  ```
  curl -fLO 'f5abf41608'
  curl -fLO '78cb317546'

  FUZZ=mocked_descriptor_parse ./bld-cmake/bin/fuzz ./f5abf41608addcef3538da61d8096c2050235032
  FUZZ=descriptor_parse ./bld-cmake/bin/fuzz ./78cb3175467f53b467b949883ee6072e92dbb267
  ```

  This will also break 32-bit fuzzing, see https://github.com/bitcoin/bitcoin/issues/34110#issuecomment-3759461248.

  Fix all issues by checking for `HasTooLargeLeafSize`.

  Sorry for creating several pull requests to fix this class of issue, but I think this one should be the last one. 😅

ACKs for top commit:
  brunoerg:
    reACK fab2f3df4beb230eef63bdcf5042b6417c0012dc
  frankomosh:
    re-ACK fab2f3df4beb230eef63bdcf5042b6417c0012dc

Tree-SHA512: 4ecf98ec4adc39f6e014370945fb1598cdd3ceba60f7209b00789ac1164b6d20e82a69d71f8419d9a40d57ee3fea36ef593c47fe48b584b6e8344c44f20a15c1
2026-01-23 09:54:22 +00:00
merge-script
cdb42a8df8
Merge bitcoin/bitcoin#34380: test: Fix P2PK script test
c9ce1c7c4a12b54ada7d48f100ec3a141ae99f86 test: Fix P2PK script test (billymcbip)

Pull request description:

  I found another script_tests case that isn't behaving the way it was meant to. It's a P2PK spend where we add an `OP_NOP8` to the scriptSig to make it non-push-only. The test should check that [`scriptSig.IsPushOnly()`](691dc830c6/src/script/interpreter.cpp (L2055)) is only enforced in P2SH mode when the scriptPubKey actually matches the P2SH pattern. To test this, we need to **turn on the P2SH flag**.

ACKs for top commit:
  sipa:
    ACK c9ce1c7c4a12b54ada7d48f100ec3a141ae99f86
  darosior:
    utACK c9ce1c7c4a12b54ada7d48f100ec3a141ae99f86

Tree-SHA512: 0af1d7b4651478349abc97cf0c009488cf5af5f97135382f7dd37cef0ef9b563192244330899a54ee7e0296bf03ba702e37a7aa15248c5c0ab4745095efc2402
2026-01-23 09:31:29 +00:00
Suhas Daftuar
40735450c0 Remove unused epochguard.h 2026-01-22 21:51:13 -05:00
Suhas Daftuar
1a8494d16c Rework CTxMemPool::GetChildren() to not use epochs
This is likely slightly slower, but this was the last place we were using
epochs instead of sets to deduplicate, and this is only used by the RPC code
and in tests, and should not be CPU-performance critical. Eliminating this
allows us to save 8 bytes in CTxMemPoolEntry.

Co-Authored-By: Pieter Wuille <bitcoin-dev@wuille.net>
2026-01-22 21:51:13 -05:00
Ava Chow
7b48b09b7f
Merge bitcoin/bitcoin#34376: bench/test: clarify merkle bench and witness test intent
8b9d30e3facff0cd132dc3faf6282d75b1f9b532 bench/test: clarify merkle bench and witness test intent (Lőrinc)

Pull request description:

  Follow-up to #32497.

  Clarify why the witness merkle test uses an odd leaf count (it exercises leaf duplication in `ComputeMerkleRoot()`), and make the coinbase witness hash initialization explicit.

  Also simplify the leaf-copy loop in the `MerkleRoot` benchmark for readability.

  No production code is changed in this follow-up, for simplicity and safety.

ACKs for top commit:
  optout21:
    ACK 8b9d30e3facff0cd132dc3faf6282d75b1f9b532
  maflcko:
    lgtm ACK 8b9d30e3facff0cd132dc3faf6282d75b1f9b532
  achow101:
    ACK 8b9d30e3facff0cd132dc3faf6282d75b1f9b532
  w0xlt:
    ACK 8b9d30e3fa
  danielabrozzoni:
    tACK 8b9d30e3facff0cd132dc3faf6282d75b1f9b532

Tree-SHA512: 6efca7c19ebf96bb8d0def4217ed30d3b74b58a7be15566967e98aba9b03aaddd0e0ebb3b8f43130b5f397a7d9eed0470a48a55438f440e0bceefb87edd16b27
2026-01-22 13:49:33 -08:00
MarcoFalke
fab2f3df4b
fuzz: Exclude too expensive inputs in descriptor_parse targets
Also, fixup iwyu warnings in the util module.

Also, fixup a typo.

The moved part can be reviewed with the git option:
--color-moved=dimmed-zebra
2026-01-22 21:01:55 +01:00
Matthew Zipkin
1911db8c6d
string: add LineReader
This is a helper struct to parse HTTP messages from data in buffers
from sockets. HTTP messages begin with headers which are
CRLF-terminated lines (\n or \r\n) followed by an arbitrary amount of
body data. Whitespace is trimmed from the field lines but not the body.

https://httpwg.org/specs/rfc9110.html#rfc.section.5
2026-01-22 12:10:33 -05:00
Matthew Zipkin
ee62405cce
time: implement and test RFC1123 timestamp string
HTTP 1.1 responses require a timestamp header with a format
specified (currently) by:
https://datatracker.ietf.org/doc/html/rfc9110#section-5.6.7

This specific format is defined in RFC1123:
https://www.rfc-editor.org/rfc/rfc1123#page-55

The libevent implementation can be referenced in evutil_time.c
evutil_date_rfc1123()
2026-01-22 11:33:23 -05:00
Matthew Zipkin
eea38787b9
string: add AsciiCaseInsensitive{KeyEqual, Hash} for unordered map
https://httpwg.org/specs/rfc9110.html#rfc.section.5.1
Field names in HTTP headers are case-insensitive. These
structs will be used in the headers map to search by key.

In libevent field names are also converted to lowercase for comparison:
  evhttp_find_header()
  evutil_ascii_strcasecmp()
  EVUTIL_TOLOWER_()
2026-01-22 11:32:27 -05:00
Matthew Zipkin
4e300df712
string: add base argument for ToIntegral to operate on hexadecimal 2026-01-22 10:44:38 -05:00
Matthew Zipkin
0b0d9125c1
Modernize GetBindAddress()
Replace the C-style casting with C++ reinterpret_cast
2026-01-22 10:35:14 -05:00
merge-script
7041648ee5
Merge bitcoin/bitcoin#34375: doc: mempool: fix removeUnchecked incorrect comment
1137debb85306063f1660bc15850979e7db88fb8 doc: mempool: fix  `removeUnchecked` incorrect comment (ismaelsadeeq)

Pull request description:

  `CTxMemPool::removeUnchecked` description comment is stale and incorrect; the behaviour being described no longer applies in the post-cluster world.  This PR is a simple fix that attempts to correctly describe what is being done in removeUnchecked.

ACKs for top commit:
  instagibbs:
    ACK 1137debb85306063f1660bc15850979e7db88fb8
  sipa:
    ACK 1137debb85306063f1660bc15850979e7db88fb8

Tree-SHA512: e410be57a83df50df01fcd6d7b07d08f0fe5a2abd229974f1ad269bb2e301608fd0d3912af349e2971f9a8abdbaa8e90c46d4832ec7b6858639642742b31a618
2026-01-22 14:45:16 +00:00
yuvicc
9a9d797ef6
kernel: Add support for block headers
Introduces btck_BlockHeader type with accessor methods and btck_chainstate_manager_process_block_header() for validating headers without full blocks. Also, adds btck_chainstate_manager_get_best_entry() to query the header with most cumulative proof-of-work.

Co-authored-by: TheCharlatan <seb.kung@gmail.com>
2026-01-22 20:06:27 +05:30
ismaelsadeeq
1137debb85
doc: mempool: fix removeUnchecked incorrect comment
- CTxMemPool::removeUnchecked description comment is stale and incorrect
  after cluster mempool.
  This commit fixes the issue by deleting the stale comment and describing
  only the implicit behaviour triggered by the method.
2026-01-22 14:09:50 +00:00
billymcbip
c9ce1c7c4a test: Fix P2PK script test 2026-01-22 13:14:00 +01:00
merge-script
d7fd8c6952
Merge bitcoin/bitcoin#34090: net: Fix -Wmissing-braces
f46e3ec0f9567a19ad9c111f264d395341327e4a net: Fix `-Wmissing-braces` (Hennadii Stepanov)

Pull request description:

  On some non-POSIX platforms, Clang emits `-Wmissing-braces` warnings for the `IN6ADDR_ANY_INIT` and `IN6ADDR_LOOPBACK_INIT` macros. For example, on OpenIndiana / illumos:
  ```
  $ uname -srv
  SunOS 5.11 illumos-325e0fc8bb
  $ clang --version
  clang version 21.1.7 (https://github.com/OpenIndiana/oi-userland.git 36a81bf5e5d307d4e85893422600678d46328010)
  Target: x86_64-pc-solaris2.11
  Thread model: posix
  InstalledDir: /usr/clang/21/bin
  $ cmake -B build -DCMAKE_GENERATOR=Ninja -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DENABLE_IPC=OFF -DAPPEND_CXXFLAGS='-Wno-unused-command-line-argument'
  $ cmake --build build
  [284/573] Building CXX object src/CMakeFiles/bitcoin_node.dir/net.cpp.o
  /export/home/hebasto/dev/bitcoin/src/net.cpp:3309:42: warning: suggest braces around initialization of subobject [-Wmissing-braces]
   3309 |         const CService ipv6_any{in6_addr(IN6ADDR_ANY_INIT), GetListenPort()}; // ::
        |                                          ^~~~~~~~~~~~~~~~
  /usr/include/netinet/in.h:479:32: note: expanded from macro 'IN6ADDR_ANY_INIT'
    479 | #define IN6ADDR_ANY_INIT            {   0, 0, 0, 0,     \
        |                                         ^~~~~~~~~~~~~~~~~
    480 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    481 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    482 |                                         0, 0, 0, 0 }
        |                                         ~~~~~~~~~~
  1 warning generated.
  [467/573] Building CXX object src/test/CMakeFiles/test_bitcoin.dir/i2p_tests.cpp.o
  /export/home/hebasto/dev/bitcoin/src/test/i2p_tests.cpp:116:34: warning: suggest braces around initialization of subobject [-Wmissing-braces]
    116 |     const CService addr{in6_addr(IN6ADDR_LOOPBACK_INIT), /*port=*/7656};
        |                                  ^~~~~~~~~~~~~~~~~~~~~
  /usr/include/netinet/in.h:484:37: note: expanded from macro 'IN6ADDR_LOOPBACK_INIT'
    484 | #define IN6ADDR_LOOPBACK_INIT       {   0, 0, 0, 0,     \
        |                                         ^~~~~~~~~~~~~~~~~
    485 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    486 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    487 |                                         0, 0, 0, 0x1U }
        |                                         ~~~~~~~~~~~~~
  /export/home/hebasto/dev/bitcoin/src/test/i2p_tests.cpp:159:38: warning: suggest braces around initialization of subobject [-Wmissing-braces]
    159 |         const CService addr{in6_addr(IN6ADDR_LOOPBACK_INIT), /*port=*/7656};
        |                                      ^~~~~~~~~~~~~~~~~~~~~
  /usr/include/netinet/in.h:484:37: note: expanded from macro 'IN6ADDR_LOOPBACK_INIT'
    484 | #define IN6ADDR_LOOPBACK_INIT       {   0, 0, 0, 0,     \
        |                                         ^~~~~~~~~~~~~~~~~
    485 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    486 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    487 |                                         0, 0, 0, 0x1U }
        |                                         ~~~~~~~~~~~~~
  2 warnings generated.
  [483/573] Building CXX object src/test/CMakeFiles/test_bitcoin.dir/netbase_tests.cpp.o
  /export/home/hebasto/dev/bitcoin/src/test/netbase_tests.cpp:505:36: warning: suggest braces around initialization of subobject [-Wmissing-braces]
    505 |         CService(CNetAddr(in6_addr(IN6ADDR_LOOPBACK_INIT)), 0 /* port */),
        |                                    ^~~~~~~~~~~~~~~~~~~~~
  /usr/include/netinet/in.h:484:37: note: expanded from macro 'IN6ADDR_LOOPBACK_INIT'
    484 | #define IN6ADDR_LOOPBACK_INIT       {   0, 0, 0, 0,     \
        |                                         ^~~~~~~~~~~~~~~~~
    485 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    486 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    487 |                                         0, 0, 0, 0x1U }
        |                                         ~~~~~~~~~~~~~
  /export/home/hebasto/dev/bitcoin/src/test/netbase_tests.cpp:510:36: warning: suggest braces around initialization of subobject [-Wmissing-braces]
    510 |         CService(CNetAddr(in6_addr(IN6ADDR_LOOPBACK_INIT)), 0x00f1 /* port */),
        |                                    ^~~~~~~~~~~~~~~~~~~~~
  /usr/include/netinet/in.h:484:37: note: expanded from macro 'IN6ADDR_LOOPBACK_INIT'
    484 | #define IN6ADDR_LOOPBACK_INIT       {   0, 0, 0, 0,     \
        |                                         ^~~~~~~~~~~~~~~~~
    485 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    486 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    487 |                                         0, 0, 0, 0x1U }
        |                                         ~~~~~~~~~~~~~
  /export/home/hebasto/dev/bitcoin/src/test/netbase_tests.cpp:515:36: warning: suggest braces around initialization of subobject [-Wmissing-braces]
    515 |         CService(CNetAddr(in6_addr(IN6ADDR_LOOPBACK_INIT)), 0xf1f2 /* port */),
        |                                    ^~~~~~~~~~~~~~~~~~~~~
  /usr/include/netinet/in.h:484:37: note: expanded from macro 'IN6ADDR_LOOPBACK_INIT'
    484 | #define IN6ADDR_LOOPBACK_INIT       {   0, 0, 0, 0,     \
        |                                         ^~~~~~~~~~~~~~~~~
    485 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    486 |                                         0, 0, 0, 0,     \
        |                                         ~~~~~~~~~~~~~~~~~
    487 |                                         0, 0, 0, 0x1U }
        |                                         ~~~~~~~~~~~~~
  3 warnings generated.
  [573/573] Linking CXX executable bin/test_bitcoin
  ```

  The same issue is observed on Windows. For further details, see https://github.com/bitcoin/bitcoin/pull/31507.

ACKs for top commit:
  bensig:
    ACK f46e3ec0f9567a19ad9c111f264d395341327e4a
  maflcko:
    review ACK  f46e3ec0f9567a19ad9c111f264d395341327e4a 👭
  vasild:
    ACK f46e3ec0f9567a19ad9c111f264d395341327e4a
  sedited:
    utACK f46e3ec0f9567a19ad9c111f264d395341327e4a

Tree-SHA512: 9ad597d393ba04537b3aa728070ea7bbe1fc8796f6d8f3d90eb511242e5a61b0ab18123a6be3cca89aaa20ba7fb4dbe682c4d1c6bd3f6d883c459133e0c2861f
2026-01-22 12:39:52 +01:00
Hennadii Stepanov
1fbbdd20cd
Merge bitcoin/bitcoin#34355: doc: Fix wrong code in WITH_LOCK doxygen comment
fa61fadad1c3df0274c3ddd351b8d68a0c4fe644 doc: Fix wrong code in WITH_LOCK doxygen comment (MarcoFalke)

Pull request description:

  The typo is harmless, but a bit confusing every time i read it

ACKs for top commit:
  hebasto:
    re-ACK fa61fadad1c3df0274c3ddd351b8d68a0c4fe644.
  l0rinc:
    ACK fa61fadad1c3df0274c3ddd351b8d68a0c4fe644

Tree-SHA512: 302a284198178954512267e8c0a5708738d77aac1cf609d8cbb386bee78d705f7e0df42a7bd8300afc18d42fa271c7f4cda932b1cbea33385622b3760bb95fad
2026-01-22 11:22:39 +00:00
merge-script
9016858282
Merge bitcoin/bitcoin#34297: p2p: add validation checks for initial self-announcement
6a8dbf9b9352db48580cd81c8dac027f3138fedf p2p: add validation check for initial self-announcement (frankomosh)

Pull request description:

  This is a follow up to #34146 . Adds validation check to the initial self-announcement code path. `IsAddrCompatible()` check can prevent sending non-routable addresses to peers that don't support addrv2.

ACKs for top commit:
  fjahr:
    utACK 6a8dbf9b9352db48580cd81c8dac027f3138fedf
  Crypt-iQ:
    crACK 6a8dbf9b9352db48580cd81c8dac027f3138fedf
  stratospher:
    ACK 6a8dbf9. preserves the existing behaviour. also learnt that Addr-fetch ADDR processing logic allows receiving a self-announcement with 1 address [without disconnecting](b6c5d1e450) and won't be affected.
  sedited:
    ACK 6a8dbf9b9352db48580cd81c8dac027f3138fedf

Tree-SHA512: 988110d72fd698634111eb68c0204f42457b9b9b3d7b6ca3e11815cc702f6921266ae8f27f27aa31c3672efdb99478870fc4d1e8f5fa63aceae6f81521b31d8b
2026-01-22 12:01:36 +01:00
Lőrinc
8b9d30e3fa
bench/test: clarify merkle bench and witness test intent
Follow-up to bitcoin/bitcoin#32497.

Clarify why the witness merkle test uses an odd leaf count (it exercises leaf duplication in `ComputeMerkleRoot()`), and make the coinbase witness hash initialization explicit.

Also simplify the leaf-copy loop in the MerkleRoot benchmark for readability.

No production code is changed in this follow-up, for simplicity and safety.

Co-authored-by: w0xlt <94266259+w0xlt@users.noreply.github.com>
2026-01-21 23:29:46 +01:00
merge-script
2a1234001c
Merge bitcoin/bitcoin#34269: wallet: disallow creating new or restoring to an unnamed (default) wallet
75b704df9d5ccb262d19ffe95b7ca6d1a934f3fb wallettool: Disallow creating new unnamed wallets (Ava Chow)
5875a9c502632eb5c74df07e41af38582da6e884 wallet: disallow unnamed wallets in createwallet and restorewallet (Ava Chow)
d30ad4a9129da04e249e3938f643dc47bf060e7e wallet, rpc: Use HandleWalletError in createwallet (Ava Chow)

Pull request description:

  We've been moving in the direction that all wallets must have a name. Therefore, we shouldn't allow creating new unnamed wallets. `createwallet`, `restorewallet`, and the wallet tool's `create` and `createfromdump` all now require the user to provide a non-empty wallet name when creating/restoring a wallet.

  The GUI is already enforcing this, but we were not enforcing it for RPCs or in the underlying `CreateWallet` and `RestoreWallet` functions.

  Wallet migration does still need to be able to restore unnamed wallets, so there is a new argument to `RestoreWallet` to explicitly allow that behavior for migration only.

ACKs for top commit:
  rkrux:
    lgtm ACK 75b704df9d5ccb262d19ffe95b7ca6d1a934f3fb
  polespinasa:
    re ACK 75b704df9d5ccb262d19ffe95b7ca6d1a934f3fb

Tree-SHA512: 8bde76d0b091e9276788c69412934af3426da2a7a69a00f94072d36c1a075cd41744ecdd5fef2b72870c1351b76aae061f124f716bb23f4839be20c464fc5ebd
2026-01-21 22:56:59 +01:00
merge-script
e324925d19
Merge bitcoin/bitcoin#34363: Update libmultiprocess subtree to avoid occasional rpc_misc.py timeout
7562e2aeed95b0dc627e8e3a849941992f0189bb Squashed 'src/ipc/libmultiprocess/' changes from a4f92969649..1fc65008f7d (Ryan Ofsky)

Pull request description:

  Includes:

  - https://github.com/bitcoin-core/libmultiprocess/pull/229
  - https://github.com/bitcoin-core/libmultiprocess/pull/223
  - https://github.com/bitcoin-core/libmultiprocess/pull/225
  - https://github.com/bitcoin-core/libmultiprocess/pull/228
  - https://github.com/bitcoin-core/libmultiprocess/pull/230
  - https://github.com/bitcoin-core/libmultiprocess/pull/236
  - https://github.com/bitcoin-core/libmultiprocess/pull/234
  - https://github.com/bitcoin-core/libmultiprocess/pull/196
  - https://github.com/bitcoin-core/libmultiprocess/pull/237

  The last change https://github.com/bitcoin-core/libmultiprocess/pull/237 is expected to fix issue #34187 occasional `rpc_misc.py` test hang. The other changes are just documentation & ci updates.

  The changes can be verified by running `test/lint/git-subtree-check.sh src/ipc/libmultiprocess` as described in [developer notes](https://github.com/bitcoin/bitcoin/blob/master/doc/developer-notes.md#subtrees) and [lint instructions](https://github.com/bitcoin/bitcoin/tree/master/test/lint#git-subtree-checksh)

ACKs for top commit:
  sedited:
    ACK 73d0fe62d3db175cfd233d8be47b09d8626cdab2

Tree-SHA512: 82fb2973b8fb5e792dcff1adde0b158ac67cc6a9aeef4465e0bbdfbef88e41d44d9bad53b1d467be47bf594befa02bd8e7829c0a0bc67aaaeb4ca1e09b672a32
2026-01-21 15:07:23 +00:00
merge-script
fa267551c4
Merge bitcoin/bitcoin#34353: refactor: Use std::bind_front over std::bind
faa18dceba1dd69703a252f751c233d227164689 refactor: Use std::bind_front over std::bind (MarcoFalke)

Pull request description:

  `std::bind` has many issues:

  * It is verbosely listing all placeholders, but in a meaningless way, because it doesn't name the args or their types.
  * It silently ignores args passed to it, when one arg is overridden. For example [1] compiles fine on current master.
  * Accidentally duplicated placeholders compile fine as well.
  * Usually the placeholders aren't even needed.
  * This makes it hard to review, understand, and maintain.

  Fix all issues by using `std::bind_front` from C++20, which allows to drop the brittle `_1, _2, ...` placeholders. The replacement should be correct, if the trailing placeholders are ordered.

  Introducing the same silent bug on top of this pull request [2] will now lead to a compile failure.

  ----

  [1]

  ```diff
  diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
  index 694fb535b5..7661dd361e 100644
  --- a/src/qt/walletmodel.cpp
  +++ b/src/qt/walletmodel.cpp
  @@ -412,3 +412,3 @@ void WalletModel::subscribeToCoreSignals()
       m_handler_status_changed = m_wallet->handleStatusChanged(std::bind(&NotifyKeyStoreStatusChanged, this));
  -    m_handler_address_book_changed = m_wallet->handleAddressBookChanged(std::bind(NotifyAddressBookChanged, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
  +    m_handler_address_book_changed = m_wallet->handleAddressBookChanged(std::bind(NotifyAddressBookChanged, this, CTxDestination{}, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
       m_handler_transaction_changed = m_wallet->handleTransactionChanged(std::bind(NotifyTransactionChanged, this, std::placeholders::_1, std::placeholders::_2));
  ```

  [2]

  ```diff
  diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
  index 578713c0ab..84cced741c 100644
  --- a/src/qt/walletmodel.cpp
  +++ b/src/qt/walletmodel.cpp
  @@ -412,3 +412,3 @@ void WalletModel::subscribeToCoreSignals()
       m_handler_status_changed = m_wallet->handleStatusChanged(std::bind_front(&NotifyKeyStoreStatusChanged, this));
  -    m_handler_address_book_changed = m_wallet->handleAddressBookChanged(std::bind_front(NotifyAddressBookChanged, this));
  +    m_handler_address_book_changed = m_wallet->handleAddressBookChanged(std::bind_front(NotifyAddressBookChanged, this, CTxDestination{}));
       m_handler_transaction_changed = m_wallet->handleTransactionChanged(std::bind_front(NotifyTransactionChanged, this));

ACKs for top commit:
  janb84:
    cr ACK faa18dceba1dd69703a252f751c233d227164689
  fjahr:
    Code review ACK faa18dceba1dd69703a252f751c233d227164689
  hebasto:
    ACK faa18dceba1dd69703a252f751c233d227164689, I have reviewed the code and it looks OK.

Tree-SHA512: 9dd13f49527e143a2beafbaae80b1358981f07a2ce20d25cffb1853089a32ff71639e6d718d1d193754522f9ac04e3e168ba017d5fc67a11a5918e79a92b3461
2026-01-21 14:59:31 +00:00
yuvicc
b851ff6cae
kernel: Add Handle/View pattern for BlockValidationState
Add C API functions for managing BlockValidationState lifecycle:
  - btck_block_validation_state_create()
  - btck_block_validation_state_copy()
  - btck_block_validation_state_destroy()

Introduce BlockValidationStateApi<> template to share common getter methods between BlockValidationState (Handle) and BlockValidationStateView (View) classes in the C++ wrapper. This enables external code to create and own BlockValidationState objects needed for the new process_block_header() API.

Co-authored-by: TheCharlatan <seb.kung@gmail.com>
2026-01-21 19:40:25 +05:30
MarcoFalke
fa61fadad1
doc: Fix wrong code in WITH_LOCK doxygen comment 2026-01-21 14:51:12 +01:00
merge-script
52096de212
Merge bitcoin/bitcoin#34032: util: Add some more Unexpected and Expected methods
faa59b367985648df901bdd7b5bba69ef898ea08 util: Add Expected::swap() (MarcoFalke)
fabb47e4e3dba7c03f9242440cb55eb37b493a7a util: Implement Expected::operator*()&& (MarcoFalke)
fab9721430aa83ddb266aca029e270aec81c021d util: Implement Expected::value()&& and Expected::error()&& (MarcoFalke)
fac48009598611d28b6583559af513c337166aeb util: Add Expected<void, E> specialization (MarcoFalke)
fa6575d6c2d27d173162888226df669fb8aeea47 util: Make Expected::value() throw (MarcoFalke)
fa1de1103fe5d97ddddc9e45286e32751151f859 util: Add Unexpected::error() (MarcoFalke)
faa109f8be7fca125c55ca84e6c0baf414c59ae6 test: refactor: Use BOOST_CHECK_EQUAL over BOOST_CHECK == (MarcoFalke)
fad4a9fe2b8d3a3aa09eca4f47e1741912328785 Set bugprone-unused-return-value.AllowCastToVoid (MarcoFalke)

Pull request description:

  Reviewers requested more member functions In https://github.com/bitcoin/bitcoin/pull/34006.

  They are currently unused, but bring the port closer to the original `std::expected` implementation:

  * Make `Expected::value()` throw when no value exists
  * Add `Unexpected::error()` methods
  * Add `Expected<void, E>` specialization
  * Add `Expected::value()&&` and `Expected::error()&&` methods
  * Add `Expected::swap()`

  Also, include a tiny tidy fixup:

  * tidy: Set `AllowCastToVoid` in the `bugprone-unused-return-value` check

ACKs for top commit:
  stickies-v:
    re-ACK faa59b367985648df901bdd7b5bba69ef898ea08
  ryanofsky:
    Code review ACK faa59b367985648df901bdd7b5bba69ef898ea08. Thanks for the update. The commit I objected to is fixed now and the rest of the implementation seems good enough for code that's probably temporary.
  hodlinator:
    re-ACK faa59b367985648df901bdd7b5bba69ef898ea08

Tree-SHA512: b6ac28c1e7241837d9db83fe7534d713ca1283c20a77d2273743157d329f041ec0b503658d14b2f4425211808b61a88fed115d77149e0546825acd3bd9198edf
2026-01-21 13:23:43 +01:00
Ava Chow
8c07800b19
Merge bitcoin/bitcoin#32497: merkle: pre‑reserve leaves to prevent reallocs with odd vtx count
3dd815f048c80c9a35f01972e0537eb42531aec7 validation: pre-reserve leaves to prevent reallocs with odd vtx count (Lőrinc)
7fd47e0e56087cd3b5fd76a532bdc3ac331e832e bench: make `MerkleRoot` benchmark more representative (Lőrinc)
f0a21831087410687c4ca31ac00e44f380b859be test: adjust `ComputeMerkleRoot` tests (Lőrinc)

Pull request description:

  #### Summary

  `ComputeMerkleRoot` [duplicates the last hash](39b6c139bd/src/consensus/merkle.cpp (L54-L56)) when the input size is odd. If the caller provides a `std::vector` whose capacity equals its size, that extra `push_back` forces a reallocation, doubling its capacity (causing peak memory usage of 3x the necessary size).

  This affects roughly half of the created blocks (those with odd transaction counts), causing unnecessary memory fragmentation during every block validation.

  #### Fix

  * Pre-reserves vector capacity to account for the odd-count duplication using `(size + 1) & ~1ULL`.
      * This syntax produces [optimal assembly](https://github.com/bitcoin/bitcoin/pull/32497#discussion_r2553107836) across x86/ARM and 32/64-bit platforms for GCC & Clang.
  * Eliminates default construction of `uint256` objects that are immediately overwritten by switching from `resize` to `reserve` + `push_back`.

  #### Memory Impact

  [Memory profiling](https://github.com/bitcoin/bitcoin/pull/32497#issuecomment-3563724551) shows **50% reduction in peak allocation** (576KB → 288KB) and elimination of reallocation overhead.

  #### Validation

  The benchmark was updated to use an odd leaf count to demonstrate the real-world scenario where the reallocation occurs.

  A full `-reindex-chainstate` up to block **896 408** ran without triggering the asserts.

  <details>
  <summary>Validation asserts</summary>

  Temporary asserts (not included in this PR) confirm that `push_back` never reallocates and that the coinbase witness hash remains null:
  ```cpp
  if (hashes.size() & 1) {
      assert(hashes.size() < hashes.capacity()); // TODO remove
      hashes.push_back(hashes.back());
  }

  leaves.reserve((block.vtx.size() + 1) & ~1ULL); // capacity rounded up to even
  leaves.emplace_back();
  assert(leaves.back().IsNull()); // TODO remove
  ```

  </details>

  #### Benchmark Performance

  While the main purpose is to improve predictability, the reduced memory operations also improve hashing throughput slightly.

ACKs for top commit:
  achow101:
    ACK 3dd815f048c80c9a35f01972e0537eb42531aec7
  optout21:
    reACK 3dd815f048c80c9a35f01972e0537eb42531aec7
  hodlinator:
    re-ACK 3dd815f048c80c9a35f01972e0537eb42531aec7
  vasild:
    ACK 3dd815f048c80c9a35f01972e0537eb42531aec7
  w0xlt:
    ACK 3dd815f048c80c9a35f01972e0537eb42531aec7 with minor nits.
  danielabrozzoni:
    Code review ACK 3dd815f048

Tree-SHA512: e7b578f9deadc0de7d61c062c7f65c5e1d347548ead4a4bb74b056396ad7df3f1c564327edc219670e6e2b2cb51f4e1ccfd4f58dd414aeadf2008d427065c11f
2026-01-20 15:47:17 -08:00
Ava Chow
a365c9fe1f
Merge bitcoin/bitcoin#33738: log: avoid collecting GetSerializeSize data when compact block logging is disabled
969c840db52da796c319f84c9a9a20b1de902ccf log,blocks: avoid `ComputeTotalSize` and `GetHash` work when logging is disabled (Lőrinc)
babfda332b6aa41143eb694193358ef2c76ebefe log,net: avoid `ComputeTotalSize` when logging is disabled (Lőrinc)
1658b8f82b99f9ba3b42a50ba1f72b19a38c8e75 refactor: rename `CTransaction::GetTotalSize` to signal that it's not cached (Lőrinc)

Pull request description:

  ### Context

  The new accounting options introduced in https://github.com/bitcoin/bitcoin/pull/32582 can be quite heavy, and are not needed when debug logging is disabled.

  ### Problem
  `PartiallyDownloadedBlock::FillBlock()` and `PeerManagerImpl::SendBlockTransactions()` accumulate transaction sizes for debug logging by calling `ComputeTotalSize()` in loops, which invokes expensive `GetSerializeSize()` serializations.
  The block header hash is also only computed for the debug log.

  ### Fixes

  Guard the size and hash calculations with `LogAcceptCategory()` checks so the serialization and hashing work only occurs when compact block debug logging is enabled.

  Also modernized the surrounding code a bit since the change is quite trivial.

  ### Reproducer

  You can test the change by starting an up-to-date `bitcoind` node with `-debug=cmpctblock` and observing compact block log lines such as:

  > [cmpctblock] Successfully reconstructed block 00000000000000000001061eaa6c0fe79258e7f79606e67ac495765cb121a520 with 1 txn prefilled, 3122 txn from mempool (incl at least 3 from extra pool) and 641 txn (352126 bytes) requested

  <details>
  <summary>Test patch</summary>

  ```patch
  diff --git a/src/blockencodings.cpp b/src/blockencodings.cpp
  index 58620c93cc..f16eb38fa5 100644
  --- a/src/blockencodings.cpp
  +++ b/src/blockencodings.cpp
  @@ -186,6 +186,7 @@ bool PartiallyDownloadedBlock::IsTxAvailable(size_t index) const

   ReadStatus PartiallyDownloadedBlock::FillBlock(CBlock& block, const std::vector<CTransactionRef>& vtx_missing, bool segwit_active)
   {
  +    LogInfo("PartiallyDownloadedBlock::FillBlock called");
       if (header.IsNull()) return READ_STATUS_INVALID;

       block = header;
  @@ -218,6 +219,7 @@ ReadStatus PartiallyDownloadedBlock::FillBlock(CBlock& block, const std::vector<
       }

       if (LogAcceptCategory(BCLog::CMPCTBLOCK, BCLog::Level::Debug)) {
  +        LogInfo("debug log enabled");
           const uint256 hash{block.GetHash()}; // avoid cleared header
           uint32_t tx_missing_size{0};
           for (const auto& tx : vtx_missing) tx_missing_size += tx->ComputeTotalSize(); // avoid cleared txn_available
  diff --git a/src/net_processing.cpp b/src/net_processing.cpp
  index 5600c8d389..c081825f77 100644
  --- a/src/net_processing.cpp
  +++ b/src/net_processing.cpp
  @@ -2470,6 +2470,7 @@ uint32_t PeerManagerImpl::GetFetchFlags(const Peer& peer) const

   void PeerManagerImpl::SendBlockTransactions(CNode& pfrom, Peer& peer, const CBlock& block, const BlockTransactionsRequest& req)
   {
  +    LogInfo("PeerManagerImpl::SendBlockTransactions called");
       BlockTransactions resp(req);
       for (size_t i = 0; i < req.indexes.size(); i++) {
           if (req.indexes[i] >= block.vtx.size()) {
  @@ -2480,6 +2481,7 @@ void PeerManagerImpl::SendBlockTransactions(CNode& pfrom, Peer& peer, const CBlo
       }

       if (LogAcceptCategory(BCLog::CMPCTBLOCK, BCLog::Level::Debug)) {
  +        LogInfo("debug log enabled");
           uint32_t tx_requested_size{0};
           for (const auto i : req.indexes) tx_requested_size += block.vtx[i]->ComputeTotalSize();
           LogDebug(BCLog::CMPCTBLOCK, "Peer %d sent us a GETBLOCKTXN for block %s, sending a BLOCKTXN with %u txns. (%u bytes)\n", pfrom.GetId(), block.GetHash().ToString(), resp.txn.size(), tx_requested_size);
  ```

  </details>

ACKs for top commit:
  davidgumberg:
    reACK 969c840db5
  achow101:
    ACK 969c840db52da796c319f84c9a9a20b1de902ccf
  hodlinator:
    re-ACK 969c840db52da796c319f84c9a9a20b1de902ccf
  sedited:
    Re-ACK 969c840db52da796c319f84c9a9a20b1de902ccf
  danielabrozzoni:
    reACK 969c840db52da796c319f84c9a9a20b1de902ccf

Tree-SHA512: 9780102d29778165144e3602d934ed4cb96660fd7b9ff2581b223c619e419139b8348e60f226af448702ae527736a1806d169b44342c5a82795590f664e16efe
2026-01-20 15:41:30 -08:00
Ava Chow
bc3c4cd8b2
Merge bitcoin/bitcoin#32724: Musig2 tests
a3c71c720158fd024d072ad32e78a3b353de0723 [test] Add BIP 328 test vectors for Musig2 (w0xlt)

Pull request description:

  Built on https://github.com/bitcoin/bitcoin/pull/31244

  This PR adds explicit tests for Bitcoin Core's MuSig2 interface.

  Any issues in musig2.{cpp,h} will likely also be caught by the descriptor tests, but having more detailed tests for the MuSig2 class itself improves test reporting/coverage.

  It uses BIP 328 test vectors.

ACKs for top commit:
  achow101:
    ACK a3c71c720158fd024d072ad32e78a3b353de0723
  rkrux:
    lgtm ACK a3c71c7

Tree-SHA512: fc13beb5445c292cd7c75a47810fb1c4032ee2e3c1800dc44089b95959ccce8330291084bf788457e1d55c02d706ef04be7044badfee134149e004c44b19ec32
2026-01-20 15:23:54 -08:00
Ava Chow
f7e88e298a
Merge bitcoin/bitcoin#32471: wallet/rpc: fix listdescriptors RPC fails to return descriptors with private key information when wallet contains descriptors missing any key
9c7e4771b13d4729fd20ea08b7e2e3209b134fff test: Test listdescs with priv works even with missing priv keys (Novo)
ed945a685473712c1a822379effa42fd49223515 walletrpc: reject listdes with priv key on w-only wallets (Novo)
9e5e9824f11b1b0f9e2a4e28124edbb1616af519 descriptor: ToPrivateString() pass if  at least 1 priv key exists (Novo)
5c4db25b61d417a567f152169f4ab21a491afb95 descriptor: refactor ToPrivateString for providers (Novo)
2dc74e3f4e5e6f01c8810359b91041bc6865f1c7 wallet/migration: use HavePrivateKeys in place of ToPrivateString (Novo)
e842eb90bb6db39076a43b010c0c7898d50b8d92 descriptors: add HavePrivateKeys() (Novo)

Pull request description:

  _TLDR:
  Currently, `listdescriptors [private=true]` will fail for a non-watch-only wallet if any descriptor has a missing private key(e.g `tr()`, `multi()`, etc.). This PR changes that while making sure `listdescriptors [private=true]` still fails if there no private keys. Closes #32078_

  In non-watch-only wallets, it's possible to import descriptors as long as at least one private key is included. It's important that users can still view these descriptors when they need to create a backup—even if some private keys are missing ([#32078 (comment)](https://github.com/bitcoin/bitcoin/issues/32078#issuecomment-2781428475)). This change makes it possible to do so.

  This change also helps prevent `listdescriptors true` from failing completely, because one descriptor is missing some private keys.

  ### Notes
  - The new behaviour is applied to all descriptors including miniscript descriptors
  - `listdescriptors true` still fails for watch-only wallets to preserve existing behaviour https://github.com/bitcoin/bitcoin/pull/24361#discussion_r920801352
  - Wallet migration logic previously used `Descriptor::ToPrivateString()` to determine which descriptor was watchonly. This means that modifying the `ToPrivateString()` behaviour caused descriptors that were previously recognized as "watchonly" to be "non-watchonly". **In order to keep the scope of this PR limited to the RPC behaviour, this PR uses a different method to determine `watchonly` descriptors for the purpose of wallet migration.** A follow-up PR can be opened to update migration logic to exclude descriptors with some private keys from the `watchonly` migration wallet.

  ### Relevant PRs
  https://github.com/bitcoin/bitcoin/pull/24361
  https://github.com/bitcoin/bitcoin/pull/32186

  ### Testing
  Functional tests were added to test the new behaviour

  EDIT
  **`listdescriptors [private=true]` will still fail when there are no private keys because non-watchonly wallets must have private keys and calling `listdescriptors [private=true]` for watchonly wallet returns an error**

ACKs for top commit:
  Sjors:
    ACK 9c7e4771b13d4729fd20ea08b7e2e3209b134fff
  achow101:
    ACK 9c7e4771b13d4729fd20ea08b7e2e3209b134fff
  w0xlt:
    reACK 9c7e4771b1 with minor nits
  rkrux:
    re-ACK 9c7e4771b13d4729fd20ea08b7e2e3209b134fff

Tree-SHA512: f9b3b2c3e5425a26e158882e39e82e15b7cb13ffbfb6a5fa2868c79526e9b178fcc3cd88d3e2e286f64819d041f687353780bbcf5a355c63a136fb8179698b60
2026-01-20 12:17:19 -08:00
rustaceanrob
ccf9172ab3
util: Remove FilterHeaderHasher
With respect to `std::unordered_map` documentation, the `Hash` type
defined in the template is over the `Key` and not `T`, the value. This
hasher is incorrectly named as the `FilterHeader` is the value within this map.
I consider this a bug as opposed to a refactor as the key and value
relationship is implied to be `filter header -> block hash` when it is
the opposite.

Further, the hasher for the key already exists via `BlockHasher`.

ref: https://en.cppreference.com/w/cpp/container/unordered_map.html
2026-01-20 16:26:50 +00:00
merge-script
7f5ebef56a
Merge bitcoin/bitcoin#34302: fuzz: Restore SendMessages coverage in process_message(s) fuzz targets
fabf8d1c5bdb6a944762792cdc762caa6c1a760b fuzz: Restore SendMessages coverage in process_message(s) fuzz targets (MarcoFalke)
fac7fed397f0fa3924600c1806a46d235a62ee5f refactor: Use std::reference_wrapper<AddrMan> in Connman (MarcoFalke)

Pull request description:

  *Found and reported by Crypt-iQ (thanks!)*

  Currently the process_message(s) fuzz targets do not have any meaningful `SendMessages` code coverage. This is not ideal.

  Fix the problem by adding back the coverage, and by hardening the code here, so that the problem hopefully does not happen again in the future.

  ### Historic context for this regression

  The regression was introduced in commit fa11eea4059a608f591db4469c07a341fd33a031, which built a new deterministic peerman object. However, the patch was incomplete, because it was missing one hunk to replace `g_setup->m_node.peerman->SendMessages(&p2p_node);` with `peerman->SendMessages(&p2p_node);`.

  This means the stale and empty peerman from the node context and not the freshly created and deterministic peerman was used.

  A simple fix would be to just submit the missing patch hunk. However, this still leaves the risk that the issue is re-introduced at any time in the future. So instead, I think the stale and empty peerman should be de-constructed, so that any call to it will lead to a hard sanitizer error and fuzz failure.

  Doing that also uncovered another issue: The connman was holding on to a reference to a stale and empty addrman.

  So fix all issues by:

  * Allowing the addrman reference in connman to be re-seatable
  * Clearing all stale objects, before creating new objects, and then using references to the new objects in all code

ACKs for top commit:
  Crypt-iQ:
    crACK fabf8d1c5bdb6a944762792cdc762caa6c1a760b
  frankomosh:
    ACK fabf8d1c5bdb6a944762792cdc762caa6c1a760b
  marcofleon:
    code review ACK fabf8d1c5bdb6a944762792cdc762caa6c1a760b
  sedited:
    ACK fabf8d1c5bdb6a944762792cdc762caa6c1a760b

Tree-SHA512: 2e478102b3e928dc7505f00c08d4b9e4f8368407b100bc88f3eb3b82aa6fea5a45bae736c211f5af1551ca0de1a5ffd4a5d196d9473d4c3b87cfed57c9a0b69d
2026-01-20 16:45:18 +01:00
MarcoFalke
faa18dceba
refactor: Use std::bind_front over std::bind 2026-01-20 15:30:46 +01:00
merge-script
c84c752506
Merge bitcoin/bitcoin#34319: Drop some IWYU pragma: export and document IWYU usage
d938947b3a89a61784a72c533df623f9eb2fec49 doc: Add "Using IWYU" to Developer Notes (Hennadii Stepanov)
e1a90bcecc823a4abaa2a57f393cad675a2ccbc0 iwyu: Do not export `crypto/hex_base.h` header (Hennadii Stepanov)
19a2edde50c38412712306bf527faad6cbf81c2c iwyu: Do not export C++ headers in most cases (Hennadii Stepanov)

Pull request description:

  First two commits address comments from discussion in https://github.com/bitcoin/bitcoin/pull/33779:
  - https://github.com/bitcoin/bitcoin/pull/33779#discussion_r2697579248
  - https://github.com/bitcoin/bitcoin/pull/33779#discussion_r2697707343

  The last commit adds a new section to the Developer Notes to document IWYU usage.

ACKs for top commit:
  maflcko:
    re-ACK d938947b3a89a61784a72c533df623f9eb2fec49 🚀

Tree-SHA512: 8d6c63e9d2fd190815211d80e654cb7379d16b6611b8851444f49bbbaa0fbc93557675fbcc558afd9a1cdf643570fba5eff9c1aecb5530f978797387b10b9a11
2026-01-20 10:29:09 +00:00
merge-script
38f951f828
Merge bitcoin/bitcoin#34308: doc: Document IWYU workaround
03f363d37884fe68d2f84a3def3fd6fe7bf4a506 doc: Document IWYU workaround (Hennadii Stepanov)

Pull request description:

  This PR addresses the following comments:
  - https://github.com/bitcoin/bitcoin/pull/34079#discussion_r2640003086:
    > it would be good to reduce and report this bug upstream. Otherwise, wide-spread use of iwyu in this code-base seems risky.

  - https://github.com/bitcoin/bitcoin/pull/34079#discussion_r2640035350:
    > Would have been good if it was documented, rather than adding undocumented workarounds for buggy tools.

ACKs for top commit:
  maflcko:
    lgtm ACK 03f363d37884fe68d2f84a3def3fd6fe7bf4a506
  sedited:
    ACK 03f363d37884fe68d2f84a3def3fd6fe7bf4a506

Tree-SHA512: 160a963c07f853995c8b4741a6ccca1d8431a576c760fca082116cebde4d133f7c8ec51f09e8f85f54428f86bad2635e1bd708177eecf71feb0bf1489f1e2b3e
2026-01-20 09:51:42 +00:00
merge-script
ab80588f52
Merge bitcoin/bitcoin#34345: clang-format: use AngleBracket for main includes
0dafc0d83c3e4c48c0ab2efad4b160d1b8c6d252 clang-format: use AngleBracket for main includes (stickies-v)

Pull request description:

  This project uses angle brackets instead of quotes for project-specific headers. Setting [`MainIncludeChar`](https://clang.llvm.org/docs/ClangFormatStyleOptions.html#mainincludechar) enables `clang-format` to automatically detect the main header, so it can be kept as the top group of includes.

  For example, without this change, `clang-format` would demote `<signet.h>` from being the main header in `src/signet.cpp`. With this change, the order is preserved.

  On 5e49f5d63c74512c8f46fe7de7deb0341f13244a:
  ```
  % clang-format src/signet.cpp | head -n 15
  // Copyright (c) 2019-present The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.

  #include <consensus/merkle.h>
  #include <consensus/params.h>
  #include <consensus/validation.h>
  #include <logging.h>
  #include <primitives/block.h>
  #include <primitives/transaction.h>
  #include <script/interpreter.h>
  #include <script/script.h>
  #include <signet.h>
  #include <streams.h>
  #include <uint256.h>

  ```

  With this PR:
  ```
  % clang-format src/signet.cpp | head -n 10
  // Copyright (c) 2019-present The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.

  #include <signet.h>

  #include <consensus/merkle.h>
  #include <consensus/params.h>
  #include <consensus/validation.h>
  #include <logging.h>

  ```

  Note: `AngleBracket` `requires clang-format 19`, and will cause older versions (including our current minimum llvm version `17`) to fail

ACKs for top commit:
  maflcko:
    review ACK 0dafc0d83c3e4c48c0ab2efad4b160d1b8c6d252
  sedited:
    Nice, ACK 0dafc0d83c3e4c48c0ab2efad4b160d1b8c6d252
  hebasto:
    ACK 0dafc0d83c3e4c48c0ab2efad4b160d1b8c6d252, tested on Ubuntu 25.10.

Tree-SHA512: c0876f505ec188f76e435af0731c411c66266b83e4c08528d0637263abcd84b3968ee6fbfa72630192f1a0cd2728af873d3d6c32f93ab8b228222fad16f232be
2026-01-20 09:39:24 +00:00
Ava Chow
347840164f
Merge bitcoin/bitcoin#32143: Fix 11-year-old mis-categorized error code in OP_IF evaluation
a7b581423e44c51fb7d177c5a15fe2cc2ab8aa43 Fix 11-year-old mis-categorized error code in OP_IF evaluation (Calin Culianu)

Pull request description:

  This was introduced by commit ab9edbd6b6eb3efbca11f16fa467c3c0ef905708.

  It appears the original author may have gotten tired and pasted the wrong error code into this 1 place. Every other situation where the value stack lacks the required number of arguments for the op-code, SCRIPT_ERR_INVALID_STACK_OPERATION is reported. Not so here.

  This commit fixes the situation.

  EDIT: Note this turns out to be a dupe of the abandoned #30359 .

ACKs for top commit:
  billymcbip:
    tACK a7b581423e44c51fb7d177c5a15fe2cc2ab8aa43
  achow101:
    ACK a7b581423e44c51fb7d177c5a15fe2cc2ab8aa43
  darosior:
    utACK a7b581423e44c51fb7d177c5a15fe2cc2ab8aa43
  sedited:
    ACK a7b581423e44c51fb7d177c5a15fe2cc2ab8aa43

Tree-SHA512: e8c01a3e2448b5d49b76a0cab3f38a2d0249b71beeb7d9d05d5ecc3812bd91d0bd1d0f78b809b6f4ccb73186fa119cb1ed3779a73284b83a67ae219ef378fa6c
2026-01-19 16:39:45 -08:00
Lőrinc
969c840db5
log,blocks: avoid ComputeTotalSize and GetHash work when logging is disabled
`PartiallyDownloadedBlock::FillBlock()` computed the block header hash and summed missing transaction sizes for debug logging unconditionally, including when cmpctblock debug logging is disabled.

Guard the debug-only hash and size computations with `LogAcceptCategory`.
Since `txn_available` is invalidated after the first loop (needed for efficient moving), we compute `tx_missing_size` by iterating `vtx_missing` directly. This is safe because the later `tx_missing_offset` check guarantees `vtx_missing` was fully consumed during reconstruction.

Use `block.GetHash()` instead of `header.GetHash()`, since header is cleared before logging.

No behavior change when debug logging is enabled: the reported counts, hashes, and byte totals remain the same.
2026-01-19 20:20:13 +01:00
Lőrinc
babfda332b
log,net: avoid ComputeTotalSize when logging is disabled
`PeerManagerImpl::SendBlockTransactions()` computed the total byte size of requested transactions for a debug log line by calling `ComputeTotalSize()` in a tight loop, triggering serialization even when debug logging is off.

Guard the size accumulation with `LogAcceptCategory` so the serialization work only happens when the log line can be emitted.

No behavior change when debug logging is enabled: the reported block hash, transaction count, and byte totals are the same.
The bounds checks still run unconditionally; the debug-only loop iterates the already-validated response contents.

Separating debug-only work from the critical path reduces risk and favors the performance-critical non-debug case.
This also narrows the racy scope of when logging is toggled from another thread.
2026-01-19 20:20:13 +01:00