fa2d21fec8 add missing atomic include (MarcoFalke)
Pull request description:
`std::atomic` is used in the file, so to avoid compile issues, add the missing include.
ACKs for top commit:
practicalswift:
cr ACK fa2d21fec8
jamesob:
crACK fa2d21fec8
hebasto:
ACK fa2d21fec8, I have reviewed the code and it looks OK, I agree it can be merged.
prayank23:
crACK fa2d21fec8
Tree-SHA512: 307b15abd62006be4457b2437fb65de517c296bf0417e8acd181904eb6056dba5655dd5bc43b834bf68a087d06637f5e99ba5a6bc8be3e12388cea470dc155d0
The `on_addr` functionality of `AddrReceiver` tests logic specific to how the
addr messages are set up in the test bodies. To allow other callers to also use
`AddrReceiver`, only apply the assertion logic if the caller indicates
desirability by setting `test_addr_contents` to true when initializing the
class.
fa09fd1a09 doc: Final merge of release notes snippets (MarcoFalke)
Pull request description:
None of the remaining pulls tagged for 22.0 have snippets, so merge them and move them to the wiki.
Trivial to review with `--color-moved=dimmed-zebra`.
ACKs for top commit:
laanwj:
ACK fa09fd1a09
jonatack:
ACK fa09fd1a09
Tree-SHA512: d5d272a9fc2217a87988efa189000cae5330da22f0459dd5e4340a18aba3d67d8fe8661016cb777e2e15f5d137c1c2b3de7d576c942eaf4201dabdc4e9c783f4
testshell in jupyter was failing due to an extra arg.
this adds a dummy -f param, which allows TestShell to
be used in a command line or jupyter environment
d6d2ab9845 test: MiniWallet: fix fee calculation for P2PK and check tx vsize (Sebastian Falbesoner)
ce024b1c0e test: MiniWallet: force P2PK signature to have fixed size (71 bytes) (Sebastian Falbesoner)
Pull request description:
This PR is a follow-up to #21945. It aims to both fix the fee calculation for P2PK mode transactions and enable its vsize check. Currently, the latter assumes a fixed tx length, which is fine for anyone-can-spend txs but doesn't apply to P2PK output spends due to varying DER signature size; the vsize check is therefore disabled for P2PK mode on master branch.
Creating one million DER signatures with MiniWallet shows the following distribution of sizes (smart people with better math skills probably could deduce the ratios without trying, but hey):
| DER signature size [bytes] | #occurences (ratio) |
| ------------- | ------------- |
| 71 | 498893 (49.89%) |
| 70 | 497244 (49.72%) |
| 69 | 3837 (0.38%) |
| 68 | 22 (0.0022%) |
Note that even smaller signatures are possible (for smaller R and S values with leading zero bytes), it's just that the probability decreases exponentially. Instead of choosing a large vsize check range and hoping that smaller signatures are never created (potentially leading to flaky tests), the proposed solution is ~~to limit the signature size to the two most common sizes 71 and 70 (>99.6% probability) and then accordingly only check for two vsize values; the value to be used for fee calculation is a decimal right between the two possible sizes (167.5 vbytes) and for the vsize check it's rounded down/up integer values are used.~~ to simply grind the signature to a fixed size of 71 bytes (49.89% probability, i.e. on average each call to `sign_tx()`, on average two ECC signing operations are needed).
~~The idea of grinding signatures to a fixed size (similar to https://github.com/bitcoin/bitcoin/pull/13666 which grinds to low-R values) would be counter-productive, as the signature creation in the test suite is quite expensive and this would significantly slow down tests that calculate hundreds of signatures (like e.g. feature_csv_activation.py).~~
For more about transaction sizes on different input/output types, see the following interesting article: https://medium.com/coinmonks/on-bitcoin-transaction-sizes-97e31bc9d816
ACKs for top commit:
MarcoFalke:
Concept ACK d6d2ab9845
Tree-SHA512: 011c70ee0e4adf9ba12902e4b6c411db9ae96bdd8bc810bf1d67713367998e28ea328394503371fc1f5087a819547ddaea56c073b28db893ae1c0031d7927f32
b9e76f1bf0 rpc: Add test for -rpcwaittimeout (Christian Decker)
f76cb10d7d rpc: Prefix rpcwaittimeout error with details on its nature (Christian Decker)
c490e17ef6 doc: Add release notes for the `-rpcwaittimeout` cli parameter (Christian Decker)
a7fcc8eb59 rpc: Add a `-rpcwaittimeout` parameter to limit time spent waiting (Christian Decker)
Pull request description:
Adds a new numeric `-rpcwaittimeout` that can be used to limit the
time we spend waiting on the RPC server to appear. This is used by
downstream projects to provide a bit of slack when `bitcoind`s RPC
interface is not available right away.
This makes the `-rpcwait` argument more useful, since we can now limit
how long we'll ultimately wait, before potentially giving up and reporting
an error to the caller. It was discussed in the context of the BTCPayServer
wanting to have c-lightning wait for the RPC interface to become available
but still have the option of giving up eventually ([4355]).
I checked with laanwj whether this is already possible ([comment]), and
whether this would be a welcome change. Initially I intended to repurpose
the (optional) argument to `-rpcwait`, however I decided against it since it
would potentially break existing configurations, using things like `rpcwait=1`,
or `rpcwait=true` (the former would have an unintended short timeout, when
old behavior was to wait indefinitely).
~Due to its simplicity I didn't implement a test for it yet, but if that's desired I
can provide one.~ Test was added during reviews.
[4355]: https://github.com/ElementsProject/lightning/issues/4355
[comment]: https://github.com/ElementsProject/lightning/issues/4355#issuecomment-768288261
ACKs for top commit:
laanwj:
Code review ACK b9e76f1bf0
promag:
ACK b9e76f1bf0.
Tree-SHA512: 3cd6728038ec7ca7c35c2e7ccb213bfbe963f99a49bb48bbc1e511c4dd23d9957c04f9af1f8ec57120e47b26eaf580b46817b099d5fc5083c98da7aa92db8638
With `banlist.dat` (being written in addrv1 format) if we would try to
write a Tor v3 subnet, it would serialize as a dummy-all-0s IPv6
address and subsequently, when deserialized will not result in the same
subnet.
This problem does not exist with `banlist.json` where the data is saved
in textual, human-readable form.
Save the banlist in `banlist.json` instead of `banlist.dat`.
This makes it possible to store Tor v3 entries in the banlist on disk
(and any other addresses that cannot be serialized in addrv1 format).
Only read `banlist.dat` if it exists and `banlist.json` does not
exist (first start after an upgrade).
Supersedes https://github.com/bitcoin/bitcoin/pull/20904
Resolves https://github.com/bitcoin/bitcoin/issues/19748
4e353cb618 http: Release work queue after event base finish (João Barbosa)
Pull request description:
This fixes a race between `http_request_cb` and `StopHTTPServer` where
the work queue is used after release.
Fixes#18856.
ACKs for top commit:
fjahr:
Code review ACK 4e353cb618
achow101:
ACK 4e353cb618
LarryRuane:
ACK 4e353cb618
hebasto:
ACK 4e353cb618, tested (rebased on top of master 9313c4e6aa) on Linux Mint 20.1 (x86_64) using MarcoFalke's [patch](https://github.com/bitcoin/bitcoin/pull/19033#issuecomment-640106647), including different `-rpcthreads`/`-rpcworkqueue` cases. The bug is fixed. The code is correct.
Tree-SHA512: 185d2a9744d0d5134d782bf321ac9958ba17b11a5b3d70b4897c8243e6b146dfd3f23c57aef8e10ae9484374120b64389c1949a9cf0a21dccc47ffc934c20930
30aee2dfe6 tests: Add test for compact block HB selection (Pieter Wuille)
6efbcec4de Protect last outbound HB compact block peer (Suhas Daftuar)
Pull request description:
If all our high-bandwidth compact block serving peers (BIP 152) stall block
download, then we can be denied a block for (potentially) a long time. As
inbound connections are much more likely to be adversarial than outbound
connections, mitigate this risk by never removing our last outbound HB peer if
it would be replaced by an inbound.
ACKs for top commit:
achow101:
ACK 30aee2dfe6
ariard:
Code ACK 30aee2dfe
jonatack:
ACK 30aee2dfe6
Tree-SHA512: 5c6c9326e3667b97e0864c371ae2174d2be9054dad479f4366127b9cd3ac60ffa01ec9707b16ef29cac122db6916cf56fd9985733390017134ace483278921d5
e8cd3700ee devtools: Integrate ARCH_MIN_GLIBC_VER table into MAX_VERSIONS in symbol-check.py (W. J. van der Laan)
a33381acf5 devtools: Add xkb version to symbol-check (W. J. van der Laan)
19e598bab0 devtools: Fix verneed section parsing in pixie (W. J. van der Laan)
Pull request description:
I misunderstood the ELF specification for version symbols (verneed): The `vn_aux` pointer is relative to the main verneed record, not the start of the section.
This caused many symbols to not be versioned properly in the return value of `elf.dyn_symbols`. This was discovered in #21454.
Fix it by correcting the offset computation.
- xkb versions symbols (using the prefix `V`), as this library is used by bitcoin-qt, add it to the valid versions in `symbol-check.py`
This unfortunately brings to light some symbols that have been introduced since and weren't caught (from a gitian compile of master):
```
bitcoin-cli: symbol getrandom from unsupported version GLIBC_2.25
bitcoin-cli: failed IMPORTED_SYMBOLS
bitcoind: symbol getrandom from unsupported version GLIBC_2.25
bitcoind: symbol log from unsupported version GLIBC_2.29
bitcoind: symbol fcntl64 from unsupported version GLIBC_2.28
bitcoind: symbol pow from unsupported version GLIBC_2.29
bitcoind: symbol exp from unsupported version GLIBC_2.29
bitcoind: failed IMPORTED_SYMBOLS
bitcoin-qt: symbol exp from unsupported version GLIBC_2.29
bitcoin-qt: symbol fcntl64 from unsupported version GLIBC_2.28
bitcoin-qt: symbol log from unsupported version GLIBC_2.29
bitcoin-qt: symbol pow from unsupported version GLIBC_2.29
bitcoin-qt: symbol statx from unsupported version GLIBC_2.28
bitcoin-qt: symbol getrandom from unsupported version GLIBC_2.25
bitcoin-qt: symbol renameat2 from unsupported version GLIBC_2.28
bitcoin-qt: symbol getentropy from unsupported version GLIBC_2.25
bitcoin-qt: failed IMPORTED_SYMBOLS
bitcoin-wallet: symbol exp from unsupported version GLIBC_2.29
bitcoin-wallet: symbol log from unsupported version GLIBC_2.29
bitcoin-wallet: symbol fcntl64 from unsupported version GLIBC_2.28
bitcoin-wallet: failed IMPORTED_SYMBOLS
test_bitcoin: symbol getrandom from unsupported version GLIBC_2.25
test_bitcoin: symbol log from unsupported version GLIBC_2.29
test_bitcoin: symbol fcntl64 from unsupported version GLIBC_2.28
test_bitcoin: symbol pow from unsupported version GLIBC_2.29
test_bitcoin: symbol exp from unsupported version GLIBC_2.29
test_bitcoin: failed IMPORTED_SYMBOLS
```
ACKs for top commit:
hebasto:
ACK e8cd3700ee
Tree-SHA512: 8c15e3478eb642f01a1ddaadef03f80583f088f9fa8e3bf171ce16b0ec05ffb4675ec147d7ffc6a4360637ed47fca517c6ca2bac7bb30d794c03783cfb964b79
906d791311 fuzz: add missing ECCVerifyHandle to base_encode_decode (Andrew Poelstra)
Pull request description:
It is possible to trigger a fuzztest failure in the `base_encode_decode` by asking it to decode any PSBT that has HD keypaths in it. For example, this one
```
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
```
which I took straight from the PSBT test vectors. The reason is that in src/psbt.h we call `DeserializeHDKeypaths`, which in turn calls `CPubKey::IsFullyValid`, which in turn asserts that a secp context has been created.
The error appears to be masked on many systems by the definition of `instance_of_eccryptoclosure` in src/script/bitcoinconsensus.cpp, which defines a static object which contains an `ECCVerifyHandle`. If you just comment out that line you can reliably trigger the fuzz test failure, e.g. by creating a file `crash` with the above PSBT, and runnnig
```
ASAN_OPTIONS=symbolize=0:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1 UBSAN_OPTIONS=suppressions=./test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1 FUZZ=base_encode_decode ./src/test/fuzz/fuzz -seed_inputs=crash
```
ACKs for top commit:
practicalswift:
cr ACK 906d791311
Tree-SHA512: b98b60573c21efe28503fe351883c6f0d9ac99d0dd6f100537b16ac53476617b8a3f899faf0c23d893d34a01b3bbe4a784499ec6f9c7000292e850bed449bd85
fa7d71f270 test: Run pep-8 on touched test (MarcoFalke)
fab7e99c2a test: Use MiniWallet in test_no_inherited_signaling RBF test (MarcoFalke)
fab871f649 test: Remove unused generate() from test (MarcoFalke)
faff3f35b7 test: Add txin.sequence option to MiniWallet (MarcoFalke)
Pull request description:
This comes with nice benefits:
* Less code and complexity
* Test can be run without wallet compiled in
Also add some additional checks for `getmempoolentry` (#22209) and other cleanups 🎨
ACKs for top commit:
mjdietzx:
Tested ACK fa7d71f270 thanks for the explanations, nicely done
theStack:
ACK fa7d71f270🍷
Tree-SHA512: 0e9b8fe985779d8d7034d256deed627125bb374b6ae2972c461b3a220739a51061c6147ad69339bee16282f82716c7f3f8a7a89c693ceb1e47ea50709272332a
55311197c4 Added new test for future blocks reacceptance (sanket1729)
511a5af462 Fixed inconsistencies between code and comments (sanket1729)
Pull request description:
This Commit does 3 things:
1) Adds a test case for checking reacceptance a previously rejected block which
was too far in the future.
~~2) clean up uses of rehash or calc_sha256 where it was not needed~~
3) While constructing block 44, this commit makes the code consistent with the expected figure in
the comment just above it by adding a transaction to the block.
4) Fix comment describing `sign_tx()` function
ACKs for top commit:
duncandean:
reACK 5531119
brunoerg:
reACK 55311197c4
Tree-SHA512: d40c72fcdbb0b2a0715adc58441eeea08147ee2ec5e371a4ccc824ebfdc6450698bd40aaeecb7ea7bfdb3cd1b264dd821b890276fff8b8d89b7225cdd9d6b546
451b96f7d2 test: kill process group to avoid dangling processes (S3RK)
Pull request description:
This is an alternative to #19281
This PR fixes a problem when after test failure with `--failfast` option there could be dangling nodes. The nodes will continue to occupy rpc/p2p ports on the machine and will cause further test failures.
If there are any dangling nodes left at the end of the test run we kill the whole process group.
Pros: the operations is immediate and won't lead to CI timeout
Cons: the test_runner process is also killed and exit code is 137
Example output:
```
...
Early exiting after test failure
TEST | STATUS | DURATION
rpc_decodescript.py | ✓ Passed | 2 s
rpc_deprecated.py | ✓ Passed | 2 s
rpc_deriveaddresses.py | ✓ Passed | 2 s
rpc_dumptxoutset.py | ✖ Failed | 2 s
ALL | ✖ Failed | 8 s (accumulated)
Runtime: 4 s
Killed: 9
> echo $?
137
```
ACKs for top commit:
MarcoFalke:
review ACK 451b96f7d2
aitorjs:
ACK 451b96f7d2. Manual testing with and without **--failfast**.
Tree-SHA512: 87e510a1411b9e7571e63cf7ffc8b9a8935daf9112ffc0f069d6c406ba87743ec439808181f7e13cb97bb200fad528589786c47f0b43cf3a2ef0d06a23cb86dd
The (ancient) versions specified here were deceptive. Entries older than
MAX_VERSIONS['GLIBC'], which is 2.17, are ignored here. So reorganize
the code to avoid confusion for other people reading this code.
aa80b5759d scripts: check macOS SDK version is set (fanquake)
c972345bac scripts: check minimum required Windows version is set (fanquake)
29615aef52 scripts: check minimum required macOS vesion is set (fanquake)
8732f7b6c9 scripts: LIEF 0.11.5 (fanquake)
Pull request description:
macOS:
We use a compile flag ([-mmacosx-version-min=10.14](https://github.com/bitcoin/bitcoin/blob/master/depends/hosts/darwin.mk#L96)) to set the minimum required version of macOS needed to run our binaries. This adds a sanity check that the version is being set as expected.
Clangs Darwin driver should infer the SDK version used during compilation, and forward that through to the linker. Add a check that this has been done, and the expected SDK version is set. Should help prevent issues like #21771 in future.
Windows:
We use linker flags ([-Wl,--major/minor-subsystem-version](https://github.com/bitcoin/bitcoin/blob/master/configure.ac#L683)) to set the minimum required version of Windows needed to run our binaries. This adds a sanity check that the version is being set as expected.
Gitian builds:
```bash
# macOS:
8b6fcd61d75001c37b2af3fceb5ae09f5d2fe85e97d361f684214bd91c27954a bitcoin-f015e1c2cac9-osx-unsigned.dmg
3c1e412bc7f5a7a5d0f78e2cd84b7096831414e1304c1307211aa3e135d89bbf bitcoin-f015e1c2cac9-osx-unsigned.tar.gz
50b7b2804e8481f63c69c78e3e8a71c0d811bf2db8895dd6d3edae9c46a738ae bitcoin-f015e1c2cac9-osx64.tar.gz
fe6b5c0a550096b76b6727efee30e85b60163a41c83f21868c849fdd9876b675 src/bitcoin-f015e1c2cac9.tar.gz
8a20f21b20673dfc8c23e22b20ae0839bcaf65bf0e02f62381cdf5e7922936f0 bitcoin-core-osx-22-res.yml
# Windows:
b01fcdc2a5673387050d6c6c4f96f1d350976a121155fde3f76c2af309111f9d bitcoin-f015e1c2cac9-win-unsigned.tar.gz
b95bdcbef638804030671d2332d58011f8c4ed4c1db87d6ffd211515c32c9d02 bitcoin-f015e1c2cac9-win64-debug.zip
350bf180252d24a3d40f05e22398fec7bb00e06d812204eb5a421100a8e10638 bitcoin-f015e1c2cac9-win64-setup-unsigned.exe
2730ddabe246d99913c9a779e97edcadb2d55309933d46f1dffd0d23ecf9aae5 bitcoin-f015e1c2cac9-win64.zip
fe6b5c0a550096b76b6727efee30e85b60163a41c83f21868c849fdd9876b675 src/bitcoin-f015e1c2cac9.tar.gz
aa60d7a753e8cb2d4323cfbbf4d964ad3645e74c918cccd66862888f8646d80f bitcoin-core-win-22-res.yml
```
ACKs for top commit:
hebasto:
ACK aa80b5759d, tested by breaking tests:
Tree-SHA512: 10150219910e8131715fbfe20edaa15778387616ef3bfe1a5152c7acd3958fe8f88c74961c3d3641074eb72824680c22764bb1dc01a19e92e946c2d4962a8d2c
8f7704d032 build: improve detection of eBPF support (fanquake)
Pull request description:
Just checking for the `sys/sdt.h` header isn't enough, as systems like macOS have the header, but it doesn't actually have the `DTRACE_PROBE*` probes, which leads to [compile failures](https://github.com/bitcoin/bitcoin/pull/22006#issuecomment-859559004). The contents of `sys/sdt.h` in the macOS SDK is:
```bash
#ifndef _SYS_SDT_H
#define _SYS_SDT_H
/*
* This is a wrapper header that wraps the mach visible sdt.h header so that
* the header file ends up visible where software expects it to be. We also
* do the C/C++ symbol wrapping here, since Mach headers are technically C
* interfaces.
*
* Note: The process of adding USDT probes to code is slightly different
* than documented in the "Solaris Dynamic Tracing Guide".
* The DTRACE_PROBE*() macros are not supported on Mac OS X -- instead see
* "BUILDING CODE CONTAINING USDT PROBES" in the dtrace(1) manpage
*
*/
#include <sys/cdefs.h>
__BEGIN_DECLS
#include <mach/sdt.h>
__END_DECLS
#endif /* _SYS_SDT_H */
```
The `BUILDING CODE CONTAINING USDT PROBES` section from the dtrace manpage is available [here](https://gist.github.com/fanquake/e56c9866d53b326646d04ab43a8df9e2), and outlines the more involved process of using USDT probes on macOS.
ACKs for top commit:
jb55:
utACK 8f7704d032
practicalswift:
cr ACK 8f7704d032
hebasto:
ACK 8f7704d032, tested on macOS Big Sur 11.4 (20F71) and on Linux Mint 20.1 (x86_64) with depends.
Tree-SHA512: 5f1351d0ac2e655fccb22a5454f415906404fdaa336fd89b54ef49ca50a442c44ab92d063cba3f161cb8ea0679c92ae3cd6cfbbcb19728cac21116247a017df5
458a345b05 Add support for SIGHASH_DEFAULT in RPCs, and make it default (Pieter Wuille)
c0f0c8eccb tests: check spending of P2TR (Pieter Wuille)
a2380127e9 Basic Taproot signing logic in script/sign.cpp (Pieter Wuille)
49487bc3b6 Make GetInputUTXO safer: verify non-witness UTXO match (Pieter Wuille)
fd3f6890f3 Construct and use PrecomputedTransactionData in PSBT signing (Pieter Wuille)
5cb6502ac5 Construct and use PrecomputedTransactionData in SignTransaction (Pieter Wuille)
5d2e22437b Don't nuke witness data when signing fails (Pieter Wuille)
ce9353164b Permit full precomputation in PrecomputedTransactionData (Pieter Wuille)
e841fb503d Add precomputed txdata support to MutableTransactionSignatureCreator (Pieter Wuille)
a91d532338 Add CKey::SignSchnorr function for BIP 340/341 signing (Pieter Wuille)
e77a2839b5 Use HandleMissingData also in CheckSchnorrSignature (Pieter Wuille)
dbb0ce9fbf Add TaprootSpendData data structure, equivalent to script map for P2[W]SH (Pieter Wuille)
Pull request description:
Builds on top of #22051, adding signing support after derivation support.
Nothing is changed in descriptor features. Signing works for key path and script path spending, through the normal sending functions, and PSBT-based RPCs. However, PSBT usability is rather low as no extensions have been defined to convey Taproot-specific information, so all script information must be known to the signing wallet.
ACKs for top commit:
achow101:
re-ACK 458a345b05
fjahr:
Code review ACK 458a345b05
Sjors:
ACK 458a345b05
Tree-SHA512: 30ed212cf7754763a4a81624ebc084c51727b8322711ac0b390369213c1a891d367ed8b123882ac08c99595320c11ec57ee42304ff22a69afdc3d1a0d55cc711
9550dffa0c fuzz: Assert roundtrip equality for `CPubKey` (Sebastian Falbesoner)
Pull request description:
This PR is a (quite late) follow-up to #19237 (https://github.com/bitcoin/bitcoin/pull/19237#issuecomment-642203251). Looking at `CPubKey::Serialize` and `CPubKey::Unserialize` I can't think of a scenario where the roundtrip (serialization/deserialization) equality wouldn't hold.
ACKs for top commit:
jamesob:
crACK 9550dffa0c pending CI
Tree-SHA512: 640fb9e777d249769b22ee52c0b15a68ff0645b16c986e1c0bce9742155d14f1be601e591833e1dc8dcffebf271966c6b861b90888a44aae1feae2e0248e2c55
