4747da3a5b Add syscall sandboxing (seccomp-bpf) (practicalswift)
Pull request description:
Add experimental syscall sandboxing using seccomp-bpf (Linux secure computing mode).
Enable filtering of system calls using seccomp-bpf: allow only explicitly allowlisted (expected) syscalls to be called.
The syscall sandboxing implemented in this PR is an experimental feature currently available only under Linux x86-64.
To enable the experimental syscall sandbox the `-sandbox=<mode>` option must be passed to `bitcoind`:
```
-sandbox=<mode>
Use the experimental syscall sandbox in the specified mode
(-sandbox=log-and-abort or -sandbox=abort). Allow only expected
syscalls to be used by bitcoind. Note that this is an
experimental new feature that may cause bitcoind to exit or crash
unexpectedly: use with caution. In the "log-and-abort" mode the
invocation of an unexpected syscall results in a debug handler
being invoked which will log the incident and terminate the
program (without executing the unexpected syscall). In the
"abort" mode the invocation of an unexpected syscall results in
the entire process being killed immediately by the kernel without
executing the unexpected syscall.
```
The allowed syscalls are defined on a per thread basis.
I've used this feature since summer 2020 and I find it to be a helpful testing/debugging addition which makes it much easier to reason about the actual capabilities required of each type of thread in Bitcoin Core.
---
Quick start guide:
```
$ ./configure
$ src/bitcoind -regtest -debug=util -sandbox=log-and-abort
…
2021-06-09T12:34:56Z Experimental syscall sandbox enabled (-sandbox=log-and-abort): bitcoind will terminate if an unexpected (not allowlisted) syscall is invoked.
…
2021-06-09T12:34:56Z Syscall filter installed for thread "addcon"
2021-06-09T12:34:56Z Syscall filter installed for thread "dnsseed"
2021-06-09T12:34:56Z Syscall filter installed for thread "net"
2021-06-09T12:34:56Z Syscall filter installed for thread "msghand"
2021-06-09T12:34:56Z Syscall filter installed for thread "opencon"
2021-06-09T12:34:56Z Syscall filter installed for thread "init"
…
# A simulated execve call to show the sandbox in action:
2021-06-09T12:34:56Z ERROR: The syscall "execve" (syscall number 59) is not allowed by the syscall sandbox in thread "msghand". Please report.
…
Aborted (core dumped)
$
```
---
[About seccomp and seccomp-bpf](https://en.wikipedia.org/wiki/Seccomp):
> In computer security, seccomp (short for secure computing mode) is a facility in the Linux kernel. seccomp allows a process to make a one-way transition into a "secure" state where it cannot make any system calls except exit(), sigreturn(), and read() and write() to already-open file descriptors. Should it attempt any other system calls, the kernel will terminate the process with SIGKILL or SIGSYS. In this sense, it does not virtualize the system's resources but isolates the process from them entirely.
>
> […]
>
> seccomp-bpf is an extension to seccomp that allows filtering of system calls using a configurable policy implemented using Berkeley Packet Filter rules. It is used by OpenSSH and vsftpd as well as the Google Chrome/Chromium web browsers on Chrome OS and Linux. (In this regard seccomp-bpf achieves similar functionality, but with more flexibility and higher performance, to the older systrace—which seems to be no longer supported for Linux.)
ACKs for top commit:
laanwj:
Code review and lightly tested ACK 4747da3a5b
Tree-SHA512: e1c28e323eb4409a46157b7cc0fc29a057ba58d1ee2de268962e2ade28ebd4421b5c2536c64a3af6e9bd3f54016600fec88d016adb49864b63edea51ad838e17
ea31caf6b4 update estimatesmartfee rpc to return max of estimateSmartFee, mempoolMinFee and minRelayTxFee. (pranabp-bit)
Pull request description:
This PR is in response to the issue [#19699](https://github.com/bitcoin/bitcoin/issues/19699).
Based on the discussion in the comments of PR [#22673](https://github.com/bitcoin/bitcoin/pull/22673) changes have been made in the `estimatesmartfee` itself such that it takes into account `mempoolMinFee` and `relayMinFee` . Hence it provides a fee estimate that is most likely to be paid by the user in an actual transaction, preventing issues such as [#16072](https://github.com/bitcoin/bitcoin/issues/16072).
The test file test/functional/feature_fee_estimation.py has also been updated to check this functionality.
ACKs for top commit:
meshcollider:
re-utACK ea31caf6b4
Tree-SHA512: 8f36153a07cbd552c5c13d11d9c6e987a7a555ea4cc83f2573c0c92dd97c706d90c30a7248671437c2f3a836d3272f8fad53d15a5fa6efaa0409ae8009b0a18d
43cd6b8af9 doc: add release notes for removal of the -deprecatedrpc=addresses flag (Michael Dietz)
2b1fdc2c6c refactor: minor styling, prefer snake case and same line if (Michael Dietz)
d64deac7b8 refactor: share logic between ScriptPubKeyToUniv and ScriptToUniv (Michael Dietz)
8721638daa rpc: remove deprecated addresses and reqSigs from rpc outputs (Michael Dietz)
Pull request description:
Resolves#21797 now that we've branched-off to v23 ("addresses" and "reqSigs" deprecated) "ExtractDestinations" should be removed.
`-deprecatedrpc=addresses` was initially added in this PR #20286 (which resolved the original issue #20102).
Some chunks of code and logic are no longer used/necessary with the removal of this, and therefore some minor refactoring is done in this PR as well (separated commits)
ACKs for top commit:
MarcoFalke:
re-ACK 43cd6b8af9🐉
meshcollider:
Code review ACK 43cd6b8af9
jonatack:
ACK 43cd6b8af9 per `git range-diff a9d0cec 92dc5e9 43cd6b8`, also rebased to latest master, debug built + quick re-review of each commit to bring back context, and ran tests locally at the final commit
Tree-SHA512: fba83495e396d3c06f0dcf49292f14f4aa6b68fa758f0503941fade1a6e7271cda8378e2734af1faea550d1b43c85a36c52ebcc9dec0732936f9233b4b97901c
This will provide better estimates which would be closer to fee paid in actual
transactions.
The test has also been changed such that when the node is restarted with a
high mempoolMinFee, the estimatesmartfee still returns a feeRate greater
than or equal to the mempoolMinFee, minRelayTxFee.(just like the feeRate of actual transactions)
cdaab90662 Add test for addrman consistency check on restart with asmap (Jon Atack)
869f136816 Add test for rpc addpeeraddress with "tried" argument (Jon Atack)
ef242f5213 Allow passing "tried" to rpc addpeeraddress to call CAddrMan::Good() (Jon Atack)
Pull request description:
This pull adds a `tried` argument to RPC addpeeraddress and a regression test for the recent addrman/asmap changes and issue.
PR #22697 introduced a reproducible bug in commit 181a1207 that fails addrman consistency checks and causes it to significantly lose peer entries when the `-asmap` configuration option is used.
The issue occurs upon bitcoind restart due to an initialization order change in `src/init.cpp` in that commit, whereby CAddrman asmap is set after deserializing `peers.dat`, rather than before.
Issue reported on the `#bitcoin-core-dev` IRC channel starting at https://www.erisian.com.au/bitcoin-core-dev/log-2021-08-23.html#l-263.
```
addrman lost 22813 new and 2 tried addresses due to collisions or invalid addresses
ADDRMAN CONSISTENCY CHECK FAILED!!! err=-17 bitcoind: ./addrman.h:707: void CAddrMan::Check() const: Assertion `false' failed. Aborted
```
How to reproduce:
- `git checkout 181a1207`, build, and launch bitcoind with the `-asmap` and `-checkaddrman=1` configuration options enabled
- restart bitcoind
- bitcoind aborts on the second call to the addrman consistency checks in `CAddrMan::Check()`
How to test this pull:
- `git checkout 181a1207`, cherry pick the first commit of this branch, build, git checkout this branch, run `test/functional/rpc_net.py`, which should pass, and then run `test/functional/feature_asmap.py`, which should fail with the following output:
```
AssertionError: Unexpected stderr bitcoind: ./addrman.h:739: void CAddrMan::Check() const: Assertion `false' failed.
```
ACKs for top commit:
jnewbery:
utACK cdaab90662
mzumsande:
re-ACK cdaab90662 (based on code review of diff to d586817)
vasild:
ACK cdaab90662
Tree-SHA512: 0251a18fea629b62486fc907d7ab0e96c6df6fadb9e4d62cff018bc681afb6ac31e0e7258809c0a88f91e4a36c4fb0b16ed294ce47ef30585217de89c3342399
e4709c7b56 Start using init makeNode, makeChain, etc methods (Russell Yanofsky)
Pull request description:
Use `interfaces::Init::make*` methods instead of `interfaces::Make*` functions, so interfaces can be constructed differently in different executable without having to change any code. (So for example `bitcoin-gui` can make an `interfaces::Node` pointer that communicates with a `bitcoin-node` subprocess, while `bitcoin-qt` can make an `interfaces::Node` pointer that controls node code in the same process.)
---
This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/projects/10). The commit was first part of larger PR #10102.
ACKs for top commit:
jamesob:
reACK e4709c7b56
achow101:
ACK e4709c7b56
benthecarman:
utACK e4709c7b56
Tree-SHA512: 580c1979dbb2ef444157c8e53041e70d15ddeee77e5cbdb34f70b6d228cc2d2fe3843825f172da84e506200c58f7e0932f7cd4c006bb5058c1f4e43259394834
Improve readability of code, simplify future scripted diff cleanup PRs, and be
more consistent with naming for GetBoolArg.
This will also be useful for replacing runtime settings type checking
with compile time checking.
-BEGIN VERIFY SCRIPT-
git grep -l GetArg | xargs sed -i 's/GetArg(\([^)]*\( [0-9]\+\|-1\|port\|BaseParams().RPCPort()\|Params().GetDefaultPort()\|_TIMEOUT\|Height\|_WORKQUEUE\|_THREADS\|_CONNECTIONS\|LIMIT\|SigOp\|Bytes\|_VERSION\|_AGE\|_CHECKS\|Checks() ? 1 : 0\|_BANTIME\|Cache\|BLOCKS\|LEVEL\|Weight\|Version\|BUFFER\|TARGET\|WEIGHT\|TXN\|TRANSACTIONS\|ADJUSTMENT\|i64\|Size\|nDefault\|_EXPIRY\|HEIGHT\|SIZE\|SNDHWM\|_TIME_MS\)\))/GetIntArg(\1)/g'
-END VERIFY SCRIPT-
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
d96b000e94 Make GUI UTXO lock/unlock persistent (Samuel Dobson)
077154fe69 Add release note for lockunspent change (Samuel Dobson)
719ae927dc Update lockunspent tests for lock persistence (Samuel Dobson)
f13fc16295 Allow lockunspent to store the lock in the wallet DB (Samuel Dobson)
c52789365e Allow locked UTXOs to be store in the wallet database (Samuel Dobson)
Pull request description:
Addresses and closes#22368
As per that issue (and its predecessor #14907), there seems to be some interest in allowing unspent outputs to be locked persistently. This PR does so by adding a flag to lockunspent to store the change in the wallet database. Defaults to false, so there is no change in default behaviour.
Edit: GUI commit changes default behaviour. UTXOs locked/unlocked via the GUI are now persistent.
ACKs for top commit:
achow101:
ACK d96b000e94
kristapsk:
ACK d96b000e94
lsilva01:
Tested ACK d96b000e94 on Ubuntu 20.04
prayank23:
ACK d96b000e94
Tree-SHA512: 957a5bbfe7f763036796906ccb1598feb6c14c5975838be1ba24a198840bf59e83233165cb112cebae909b6b25bf27275a4d7fa425923ef6c788ff671d7a89a8
ea98d9c2ef rpc: fix/add missing RPCExamples for "Util" RPCs (Sebastian Falbesoner)
Pull request description:
Similar to https://github.com/bitcoin/bitcoin/pull/18398, this PR gives the RPCExamples in the RPC category "Util" (that currently contains `createmultisig`, `deriveaddresses`, `estimatesmartfee`, `getdescriptorinfo`, `signmessagewithprivkey`, `validateaddress`, `verifymessage`) some love by fixing one broken and adding three missing examples:
- fixed `HelpExampleRpc` for `createmultisig` (disturbing escape characters and quotation marks)
- added missing `HelpExampleRpc` for
- `deriveaddresses` (also put descriptor in a new string constant)
- `estimatesmartfee`
- `getdescriptorinfo` (also put descriptor in a new string constant)
Output for `createmultisig` example on the master branch:
```
$ curl --user __cookie__ --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "createmultisig", "params": [2, "[\"03789ed0bb717d88f7d321a368d905e7430207ebbd82bd342cf11ae157a7ace5fd\",\"03dbc6764b8884a92e871274b87583e6d5c2a58819473e17e107ef3f6aa5a61626\"]"]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/
Enter host password for user '__cookie__':
{"result":null,"error":{"code":-1,"message":"JSON value is not an array as expected"},"id":"curltest"}
```
Output for `createmultisig` example on the PR branch:
```
$ curl --user __cookie__ --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "createmultisig", "params": [2, ["03789ed0bb717d88f7d321a368d905e7430207ebbd82bd342cf11ae157a7ace5fd","03dbc6764b8884a92e871274b87583e6d5c2a58819473e17e107ef3f6aa5a61626"]]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/
Enter host password for user '__cookie__':
{"result":{"address":"3QsFXpFJf2ZY6GLWVoNFFd2xSDwdS713qX","redeemScript":"522103789ed0bb717d88f7d321a368d905e7430207ebbd82bd342cf11ae157a7ace5fd2103dbc6764b8884a92e871274b87583e6d5c2a58819473e17e107ef3f6aa5a6162652ae","descriptor":"sh(multi(2,03789ed0bb717d88f7d321a368d905e7430207ebbd82bd342cf11ae157a7ace5fd,03dbc6764b8884a92e871274b87583e6d5c2a58819473e17e107ef3f6aa5a61626))#4djp057k"},"error":null,"id":"curltest"}
```
ACKs for top commit:
jonatack:
ACK ea98d9c2ef looked at the code, rebased to master, ran the helps, did not try running the added json-rpc examples
Tree-SHA512: d6ecb6da66f19517065453357d210102e2cc9f1f8037aeb6a9177ff036d0c21773dddf5e0acdbc71edbbde3026e4d1e7ce7c0935cd3e023c60f34e1b173b3299
Use interfaces::Init::make* methods instead of interfaces::Make*
functions, so interfaces can be constructed differently in different
executables without having to change any code. (So for example
bitcoin-gui can make an interfaces::Node pointer that communicates with
a bitcoin-node subprocess, while bitcoin-qt can make an interfaces::Node
pointer that starts node code in the same process.)
5fe8100ff3 Change the wallet_backup.py test to use the restorewallet RPC command instead of restoring wallets manually. (lsilva01)
ae23faba6f Add a new RPC command: restorewallet (lsilva01)
Pull request description:
As far as I know, there is no command to restore the wallet from a backup file.
The only way to do this is to replace the `wallet.dat` of a newly created wallet with the backup file, which is hardly an intuitive way.
This PR implements the `restorewallet` RPC command which restores the wallet from the backup file.
To test:
First create a backup file:
`$ bitcoin-cli -rpcwallet="wallet-01" backupwallet /home/Backups/wallet-01.bak`
Then restore it in another wallet:
`$ bitcoin-cli restorewallet "restored-wallet-01" /home/Backups/wallet-01.bak`
ACKs for top commit:
achow101:
re-ACK 5fe8100ff3
prayank23:
tACK 5fe8100ff3
meshcollider:
utACK 5fe8100ff3
Tree-SHA512: 9639df4d8ad32f255f5b868320dc69878bd9aceb3b471b49dfad500b67681e2d354292b5410982fbf18e25a44ed0c06fd4a0dd010e82807c2e00ff32e84047a1
d930c7f5b0 p2p, rpc, test: address rate-limiting follow-ups (Jon Atack)
Pull request description:
Incorporates review feedback in #22387.
Edit, could be considered separately: should a release note (or two) be added for 22.0? e.g. the new getpeerinfo fields in `Updated RPCs` and the rate-limiting itself in `P2P and network changes`.
ACKs for top commit:
MarcoFalke:
review ACK d930c7f5b0
theStack:
re-ACK d930c7f5b0🌮
Zero-1729:
crACK d930c7f
Tree-SHA512: b2101cad87f59c238603f38bd8e8df7a4d48929794e4de9e0e0ff2afa935a68475c2d369aa669d124a0bec2f50280fb47e8b980bde6ad812db08cf67b71c066a
bb56486a17 refactor: Reuse MakeUnorderedList where possible (Hennadii Stepanov)
77a90f03ac refactor: Move MakeUnorderedList into util/string.h to make it reusable (Hennadii Stepanov)
6a5ccd65c7 scripted-diff: Rename JoinErrors in more general MakeUnorderedList (Hennadii Stepanov)
Pull request description:
A nice `JoinErrors` utility function was introduced in https://github.com/bitcoin-core/gui/pull/379 by Russell Yanofsky.
This PR renames this function and re-uses it across the code base.
ACKs for top commit:
Zero-1729:
Concept ACK bb56486a17
theStack:
Code-review ACK bb56486a17
Talkless:
utACK bb56486a17
ryanofsky:
Code review ACK bb56486a17. Nice deduping, thanks for this!
Tree-SHA512: 6bdbfa61f2ffa69e075f46b733f247c6d5b8486779a1dac064285a199a4bb8bc5ef44eaee37086305646b5c88eb6a11990883219a4a9140a5117ee21ed529bb9
accf3d5868 [test] mempool package ancestor/descendant limits (glozow)
2b6b26e57c [test] parameterizable fee for make_chain and create_child_with_parents (glozow)
313c09f7b7 [test] helper function to increase transaction weight (glozow)
f8253d69d6 extract/rename helper functions from rpc_packages.py (glozow)
3cd663a5d3 [policy] ancestor/descendant limits for packages (glozow)
c6e016aa13 [mempool] check ancestor/descendant limits for packages (glozow)
f551841d3e [refactor] pass size/count instead of entry to CalculateAncestorsAndCheckLimits (glozow)
97dd1c729d MOVEONLY: add helper function for calculating ancestors and checking limits (glozow)
f95bbf58aa misc package validation doc improvements (glozow)
Pull request description:
This PR implements a function to calculate mempool ancestors for a package and enforces ancestor/descendant limits on them as a whole. It reuses a portion of `CalculateMemPoolAncestors()`; there's also a small refactor to move the reused code into a generic helper function. Instead of calculating ancestors and descendants on every single transaction in the package and their ancestors, we use a "worst case" heuristic, treating every transaction in the package as each other's ancestor and descendant. This may overestimate everyone's counts, but is still pretty accurate in the our main package use cases, in which at least one of the transactions in the package is directly related to all the others (e.g. 1 parent + 1 child, multiple parents with 1 child, or chains).
Note on Terminology: While "package" is often used to describe groups of related transactions _within_ the mempool, here, I only use package to mean the group of not-in-mempool transactions we are currently validating.
#### Motivation
It would be a potential DoS vector to allow submission of packages to mempool without a proper guard for mempool ancestors/descendants. In general, the purpose of mempool ancestor/descendant limits is to limit the computational complexity of dealing with families during removals and additions. We want to be able to validate multiple transactions on top of the mempool, but also avoid these scenarios:
- We underestimate the ancestors/descendants during package validation and end up with extremely complex families in our mempool (potentially a DoS vector).
- We expend an unreasonable amount of resources calculating everyone's ancestors and descendants during package validation.
ACKs for top commit:
JeremyRubin:
utACK accf3d5
ariard:
ACK accf3d5.
Tree-SHA512: 0d18ce4b77398fe872e0b7c2cc66d3aac2135e561b64029584339e1f4de2a6a16ebab3dd5784f376e119cbafc4d50168b28d3bd95d0b3d01158714ade2e3624d
92993aa5cf Change SignTransaction's input_errors to use bilingual_str (Andrew Chow)
171366e89b Use bilingual_str for address fetching functions (Andrew Chow)
9571c69b51 Add bilingual_str::clear() (Andrew Chow)
Pull request description:
In a couple of places in the wallet, errors are `std::string`. In order for these errors to be translated, change them to use `bilingual_str`.
ACKs for top commit:
hebasto:
re-ACK 92993aa5cf, only rebased since my [previous](https://github.com/bitcoin/bitcoin/pull/22337#pullrequestreview-694542729) review, verified with
klementtan:
Code review ACK 92993aa5cf
meshcollider:
Code review ACK 92993aa5cf
Tree-SHA512: 5400e419dd87db8c49b67ed0964de2d44b58010a566ca246f2f0760ed9ef6a9b6f6df7a6adcb211b315b74c727bfe8c7d07eb5690b5922fa5828ceef4c83461f
bb822a7af8 wallet, rpc: add listdescriptors private option (S3RK)
Pull request description:
Rationale: make it possible to backup your wallet with `listdescriptors` command
* The default behaviour is still to show public version
* For private version only the root xprv is returned
Example use-case:
```
> bitcoin-cli -regtest -named createwallet wallet_name=old descriptors=true
> bitcoin-cli -regtest -rpcwallet=old listdescriptors true | jq '.descriptors' > descriptors.txt
> bitcoin-cli -regtest -named createwallet wallet_name=new descriptors=true blank=true
> bitcoin-cli -regtest -rpcwallet=new importdescriptors "$(cat descriptors.txt)"
```
In case of watch-only wallet without private keys there will be following output:
```
error code: -4
error message:
Can't get descriptor string.
```
ACKs for top commit:
achow101:
re-ACK bb822a7af8
Rspigler:
tACK bb822a7af8
jonatack:
ACK bb822a7af8 per `git diff 2854ddc bb822a7`
prayank23:
tACK bb822a7af8
meshcollider:
Code review ACK bb822a7af8
Tree-SHA512: f6dddc72a74e5667071ccd77f8dce578382e8e29e7ed6a0834ac2e114a6d3918b59c2f194f4079b3259e13d9ba3b4f405619940c3ecb7a1a0344615aed47c43d
32fa49a184 make ParseOutputType return a std::optional<OutputType> (fanquake)
Pull request description:
Similar to #22220. Skipped using `auto` here for the same reasons outlined in that PR.
ACKs for top commit:
jnewbery:
utACK 32fa49a184
jonatack:
Code review ACK 32fa49a184 and debian clang 13 debug build is clean / unit tests locally are green
MarcoFalke:
review ACK 32fa49a184🍢
Tree-SHA512: 7752193117669b800889226185d49d164395697853828f8acb568f07651789bc5b2cddc45555957450353886e46b9a1e13c77a5e730a14c6ee621fabc8dc3d10
3f7250b328 [test] Use the new endpoint to improve tests (Amiti Uttarwar)
3893da06db [RPC] Add field to getpeerinfo to indicate if addr relay is enabled (Amiti Uttarwar)
0980ca78cd [test] Test that we intentionally select addr relay peers. (Amiti Uttarwar)
c061599e40 [net_processing] Remove RelayAddrsWithPeer function (Amiti Uttarwar)
201e496481 [net_processing] Introduce new field to indicate if addr relay is enabled (Amiti Uttarwar)
1d1ef2db7e [net_processing] Defer initializing m_addr_known (Amiti Uttarwar)
6653fa3328 [test] Update p2p_addr_relay test to prepare (Amiti Uttarwar)
2fcaec7bbb [net_processing] Introduce SetupAddressRelay (Amiti Uttarwar)
Pull request description:
This PR builds on the test refactors extracted into #22306 (first 5 commits).
This PR aims to reduce addr blackholes. When we receive an `addr` message that contains 10 or less addresses, we forward them to 1-2 peers. This is the main technique we use for self advertisements, so sending to peers that wouldn't relay would effectively "blackhole" the trickle. Although we cannot prevent this in a malicious case, we can improve it for the normal, honest cases, and reduce the overall likelihood of occurrence. Two known cases where peers would not participate in addr relay are if they have connected to you as a block-relay-only connection, or if they are a light client.
This implementation defers initialization of `m_addr_known` until it is needed, then uses its presence to decide if the peer is participating in addr relay. For outbound (not block-relay-only) peers, we initialize the filter before sending the initial self announcement when processing their `version` message. For inbound peers, we initialize the filter if/when we get an addr related message (`ADDR`, `ADDRV2`, `GETADDR`). We do NOT initialize the filter based on a `SENDADDRV2` message.
To communicate about these changes beyond bitcoin core & to (try to) ensure that no other software would be disrupted, I have:
- Posted to the [mailing list](https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-April/018784.html)
- Researched other open source clients to confirm compatibility, opened issues in all the projects & documented in https://github.com/bitcoin/bitcoin/pull/21528#issuecomment-809906430. Many have confirmed that this change would not be problematic.
- Raised as topic during [bitcoin-core-dev meeting](https://www.erisian.com.au/bitcoin-core-dev/log-2021-03-25.html#l-954)
- Raised as topic during [bitcoin p2p meeting](https://www.erisian.com.au/bitcoin-core-dev/log-2021-04-20.html#l-439)
ACKs for top commit:
jnewbery:
reACK 3f7250b328
glozow:
ACK 3f7250b328
ajtowns:
utACK 3f7250b328
Tree-SHA512: 29069282af684c1cd37d107c395fdd432dcccb11626f3c2dabfe92fdc4c85e74c7c4056fbdfa88017fec240506639b72ac6c311f8ce7c583112eb15f47e421af
f685a13bef doc: GetTransaction()/getrawtransaction follow-ups to #22383 (John Newbery)
abc57e1f08 refactor: move `GetTransaction(...)` to node/transaction.cpp (Sebastian Falbesoner)
Pull request description:
~This PR is based on #22383, which should be reviewed first~ (merged by now).
In [yesterday's PR review club session to PR 22383](https://bitcoincore.reviews/22383), the idea of moving the function `GetTransaction(...)` from src/validation.cpp to src/node/transaction.cpp came up. With this, the circular dependency "index/txindex -> validation -> index/txindex" is removed (see change in `lint-circular-dependencies.sh`). Thanks to jnewbery for suggesting and to sipa for providing historical background.
Relevant IRC log:
```
17:52 <jnewbery> Was anyone surprised that GetTransaction() is in validation.cpp? It seems to me that node/transaction.cpp would be a more appropriate place for it.
17:53 <raj_> jnewbery, +1
17:53 <stickies-v> agreed!
17:54 <glozow> jnewbery ya
17:54 <jnewbery> seems weird that validation would call into txindex. I wonder if we remove this function, then validation would no longer need to #include txindex
17:54 <sipa> GetTransaction predates node/transaction.cpp, and even the generic index framework itself :)
17:55 <sipa> (before 0.8, validation itself used the txindex)
17:55 <jnewbery> (and GetTransaction() seems like a natural sibling to BroadcastTransaction(), which is already in node/transaction.cpp)
17:55 <jnewbery> sipa: right, this is not meant as a criticism of course. Just wondering if we can organize things a bit more rationally now that we have better separation between things.
17:55 <sipa> jnewbery: sure, just providing background
17:56 <sipa> seems very reasonable to move it elsewhere now
```
The commit should be trivial to review with `--color-moved`.
ACKs for top commit:
jnewbery:
Code review ACK f685a13bef
rajarshimaitra:
tACK f685a13bef
mjdietzx:
crACK f685a13bef
LarryRuane:
Code review, test ACK f685a13bef
Tree-SHA512: 0e844a6ecb1be04c638b55bc4478c2949549a4fcae01c984eee078de74d176fb19d508fc09360a62ad130677bfa7daf703b67870800e55942838d7313246248c
779e638ca9 coinstats: Add comments for new coinstatsindex values (Fabian Jahr)
5b3d4e724f Index: Improve logging in coinstatsindex (Fabian Jahr)
d4356d4e48 rpc: Block until synced if coinstatsindex is used in gettxoutsetinfo (Fabian Jahr)
a5f6791139 rpc: Add missing gettxoutsetinfo help docs (Fabian Jahr)
01386bfd88 Index: Return early from failed coinstatsindex init (Fabian Jahr)
1e3842385b index: Use batch writing in coinstatsindex WriteBlock (Fabian Jahr)
fb65dde147 scripted-diff: Fix coinstats data member names (Fabian Jahr)
8ea8c927ac index: Avoid unnecessary type casts in coinstatsindex (Fabian Jahr)
Pull request description:
This is a collection of smaller follow-ups to #19521, addressing several post-merge review comments.
ACKs for top commit:
Sjors:
re-utACK 779e638ca9
jonatack:
re-ACK 779e638ca9 diff since last review involves doc changes only; rebased to current master and verified clean debug build/no silent conflicts, unit tests, and feature_coinstatsindex functional test
laanwj:
Code review ACK 779e638ca9
Talkless:
re-utACK 779e638ca9 after cosmetic changes.
Tree-SHA512: cb0d038d230c582d7fe3041c89b1e04d39971fab3739d540c609cf826754c6c513b12ded08ac92180aec7a9d7a70114ece50357bd1a902de4adaae9f30b8d699
During initial sync after startup the gettxoutsetinfo RPC will still return an error while catching up. However, after the initial sync the index will not error immediately anymore when it's in the process of syncing to the tip while being called. Instead it will block until synced and then return the response.
78f4c8b98e prefer to use txindex if available for GetTransaction (Jameson Lopp)
Pull request description:
Fixes#22382
Motivation: prevent excessive disk reads if txindex is enabled.
Worth noting that this could be argued to be less of a bug and more of an issue of undefined behavior. If a user calls GetTransaction with the wrong block hash, what should happen?
ACKs for top commit:
jonatack:
ACK 78f4c8b98e
theStack:
Code review ACK 78f4c8b98e
LarryRuane:
tACK 78f4c8b98e
luke-jr:
utACK 78f4c8b98e
jnewbery:
utACK 78f4c8b98e
rajarshimaitra:
Code review ACK 78f4c8b98e
lsilva01:
Code Review ACK and Tested ACK 78f4c8b98e on Ubuntu 20.04
Tree-SHA512: af7db5b98cb2ae4897b28476b2fa243bf7e6f850750d9347062fe8013c5720986d1a3c808f80098e5289bd84b085de03c81a44e584dc28982f721c223651bfe0
2b19f3443e RPC/blockchain: getblockchaininfo: Include versionbits signalling details during LOCKED_IN (Luke Dashjr)
Pull request description:
While the signal has no effect during `LOCKED_IN`, the bit is still defined and recommended for measuring uptake. Makes sense to expose statistics too.
ACKs for top commit:
prayank23:
ACK 2b19f3443e
Sjors:
tACK 2b19f34
theStack:
Tested ACK 2b19f3443e
MarcoFalke:
review-only ACK 2b19f3443e
Tree-SHA512: a9bb5adb21992586119cbb5f87e5348eabcab11d5a3bf769b00b69e466589a669846e503f8384fa8927fd77da0c2d64a54f13a7a55a62980046d70f8255ddf47
20edf4bcf6 rpc: Return block time in getblockchaininfo (João Barbosa)
Pull request description:
Return tip time in `getblockchaininfo`, for some use cases this can save a call to `getblock`.
ACKs for top commit:
naumenkogs:
ACK 20edf4bcf6
theStack:
re-ACK 20edf4bcf6
0xB10C:
ACK 20edf4bcf6
kristapsk:
ACK 20edf4bcf6
Zero-1729:
re-ACK 20edf4bcf6
Tree-SHA512: 29a920cfff1ef53e0af601c3f93f8f9171f3be47fc84b0fa293cb865b824976e8c1510b17b27d17daf0b8e658dd77d9dc388373395f0919fc4a23cd5019642d5
5730a43703 test: Add functional test for AddrFetch connections (Martin Zumsande)
c34ad3309f net, rpc: Enable AddrFetch connections for functional testing (Martin Zumsande)
533500d907 p2p: Add timeout for AddrFetch peers (Martin Zumsande)
b6c5d1e450 p2p: AddrFetch - don't disconnect on self-announcements (Martin Zumsande)
Pull request description:
AddrFetch connections (old name: oneshots) are intended to be short-lived connections on which we ask a peer for addresses via `getaddr` and disconnect after receiving them.
This is done by disconnecting after receiving the first `addr`. However, it is no longer working as intended, because nowadays, the first `addr` a typical bitcoin core node sends is its self-announcement.
So we'll disconnect before the peer gets a chance to answer our `getaddr`.
I checked that this affects both `-seednode` peers specified manually, and DNS seeds when AddrFetch is used as a fallback if DNS doesn't work for us.
The current behavior of getting peers via AddrFetch when starting with an empty addrman would be to connect to the peer, receive its self-announcement and add it to addrman, disconnect, reconnect to the same peer again as a full outbound (no other addresses in addrman) and then receive more `addr`. This is silly and not in line with AddrFetch peer being intended to be short-lived peers.
Fix this by only disconnecting after receiving an `addr` message of size > 1.
[Edit] As per review discussion, this PR now also adds a timeout after which we disconnect if we haven't received any suitable `addr`, and a functional test.
ACKs for top commit:
amitiuttarwar:
reACK 5730a43703
naumenkogs:
ACK 5730a43703
jnewbery:
ACK 5730a43703
Tree-SHA512: 8a81234f37e827705138eb254223f7f3b3bf44a06cb02126fc7990b0d231b9bd8f07d38d185cc30d55bf35548a6fdc286b69602498d875b937e7c58332158bf9
a4bcd687c9 Improve tests using statistics (John Newbery)
f424d601e1 Add logging and addr rate limiting statistics (Pieter Wuille)
b4ece8a1cd Functional tests for addr rate limiting (Pieter Wuille)
5648138f59 Randomize the order of addr processing (Pieter Wuille)
0d64b8f709 Rate limit the processing of incoming addr messages (Pieter Wuille)
Pull request description:
The rate at which IP addresses are rumoured (through ADDR and ADDRV2 messages) on the network seems to vary from 0 for some non-participating nodes, to 0.005-0.025 addr/s for recent Bitcoin Core nodes. However, the current codebase will happily accept and process an effectively unbounded rate from attackers. There are measures to limit the influence attackers can have on the addrman database (bucket restrictions based on source IPs), but still - there is no need to permit them to feed us addresses at a rate that's orders of magnitude larger than what is common on the network today, especially as it will cause us to spam our peers too.
This PR implements a [token bucket](https://en.wikipedia.org/wiki/Token_bucket) based rate limiter, allowing an average of 0.1 addr/s per connection, with bursts up to 1000 addresses at once. Whitelisted peers as well as responses to GETADDR requests are exempt from the limit. New connections start with 1 token, so as to not interfere with the common practice of peers' self-announcement.
ACKs for top commit:
laanwj:
ACK a4bcd687c9
vasild:
ACK a4bcd687c9
jnewbery:
ACK a4bcd687c9
jonatack:
ACK a4bcd687c9
Tree-SHA512: b757de76ad78a53035b622944c4213b29b3b55d3d98bf23585afa84bfba10808299d858649f92269a16abfa75eb4366ea047eae3216f7e2f6d3c455782a16bea
3c4c8e79ba build: Add -Werror=implicit-fallthrough compile flag (Hennadii Stepanov)
014110c47d Use C++17 [[fallthrough]] attribute, and drop -Wno-implicit-fallthrough (Hennadii Stepanov)
Pull request description:
ACKs for top commit:
fanquake:
ACK 3c4c8e79ba - looks ok to me now. Checked that warnings occur in our code & leveldb by removing a `[[fallthrough]]` or `FALLTHROUGH_INTENDED`.
jarolrod:
ACK 3c4c8e79ba
theStack:
ACK 3c4c8e79ba
Tree-SHA512: 4dce91f0f26b8a3de09bd92bb3d7e1995e078e3a8b3ff861c4fbf6c0b32b2327d063633b07b89c4aa94a1141d7f78d46d9d43ab8df865273e342693ad30645b6
fa5658ed07 Use DeploymentEnabled to hide VB deployments (MarcoFalke)
fa11fecf0d doc: Move buried deployment doc to the enum that enumerates them (MarcoFalke)
Pull request description:
Plus a doc commit.
ACKs for top commit:
jnewbery:
utACK fa5658ed07
ajtowns:
utACK fa5658ed07
Tree-SHA512: 2aeceee0674feb603d76656eff40695b7d7305de309f837bbb6a8c1dbb1d0b962b741f06ab7b9a8b1dbd1964c9c0c9aa5dc9588fd8e6d896e620b69e08eedbaa
Rename BIP9SoftForkPushBack and BuriedSoftForkPushBack to SoftForkPushBack
and have the compiler figure out which one to use based on the deployment
type. Avoids the need to update the file when burying a deployment.
Adds support for versionbits deployments to DeploymentEnabled,
DeploymentActiveAfter and DeploymentActiveAt. Also moves versionbitscache
from validation to deploymentstatus.
Provides DeploymentEnabled, DeploymentActiveAt, and DeploymentActiveAfter
helpers for checking the status of buried deployments. Can be overloaded
so the same syntax works for non-buried deployments, allowing future
soft forks to be changed from signalled to buried deployments without
having to touch the implementation code.
Replaces IsWitnessEnabled and IsScriptWitnessEnabled.
fa0d9211ef refactor: Remove chainparams arg from CChainState member functions (MarcoFalke)
fa38947125 refactor: Remove ::Params() global from inside CChainState member functions (MarcoFalke)
Pull request description:
The `::Params()` global is verbose and confusing. Also it makes tests a bit harder to write because they'd have to mock a global.
Fix all issues by simply using a member variable that points to the right params.
(Can be reviewed with `--word-diff-regex=.`)
ACKs for top commit:
jnewbery:
ACK fa0d9211ef
kiminuo:
utACK fa0d9211
theStack:
ACK fa0d9211ef🍉
Tree-SHA512: 44676b19c9ed471ccb536331d3029bad192d7d50f394fd7b8527ec431452aeec8c4494164b9cf8e16e0123c4463b16be864366c6b599370032c17262625a0356
754f134a50 wallet: Add error message to GetReservedDestination (Andrew Chow)
87a0e7a3b7 Disallow bech32m addresses for legacy wallet things (Andrew Chow)
6dbe4d1072 Use BECH32M for tr() desc, WitV1Taproot, and WitUnknown CTxDests (Andrew Chow)
699dfcd8ad Opportunistically use bech32m change addresses if available (Andrew Chow)
0262536c34 Add OutputType::BECH32M (Andrew Chow)
177c15d2f7 Limit LegacyScriptPubKeyMan address types (Andrew Chow)
Pull request description:
Currently bech32m addresses are classfied as bech32. Because bech32m is incompatible with bech32, we need to define a new `OutputType` for it so that it can be handled correctly. This PR adds `OutputType::BECH32M`, updates all of the relevant `OutputType` classifications, and handle requests for bech32m addresses. There is now a `bech32m` address type string that can be used.
* `tr()` descriptors now report their output type as `OutputType::BECH32M`. `WtinessV1Taproot` and `WitnessUnknown` are also classified as `OutputType::BECH32M`.
* Bech32m addresses are completely disabled for legacy wallets. They cannot be imported (explicitly disallowed in `importaddress` and `importmulti`), will not be created when getting all destinations for a pubkey, and will not be added with `addmultisigaddress`. Additional protections have been added to `LegacyScriptPubKeyMan` to disallow attempting to retrieve bech32m addresses.
* Since Taproot multisigs are not implemented yet, `createmultisig` will also disallow the bech32m address type.
* As Taproot is not yet active, `DescriptorScriptPubKeyMan` cannot and will not create a `tr()` descriptor. Protections have been added to make sure this cannot occur.
* The change address type detection algorithm has been updated to return `bech32m` when there is a segwit v1+ output script and the wallet has a bech32m `ScriptPubKeyMan`, falling back to bech32 if one is not available.
ACKs for top commit:
laanwj:
re-review ACK 754f134a50
Sjors:
re-utACK 754f134: only change is switching to `bech32m` in two `wallet_taproot.py` test cases.
fjahr:
re-ACK 754f134a50
jonatack:
ACK 754f134a50
Tree-SHA512: 6ea90867d3631d0d438e2b08ce6ed930f37d01323224661e8e38f183ea5ee2ab65b5891394a3612c7382a1aff907b457616c6725665a10c320174017b998ca9f
7ad414f4bf doc: add comment about CCoinsViewDBCursor constructor (James O'Beirne)
0f8a5a4dd5 move-only(ish): don't expose CCoinsViewDBCursor (James O'Beirne)
615c1adfb0 refactor: wrap CCoinsViewCursor in unique_ptr (James O'Beirne)
Pull request description:
I tripped over this one for a few hours at the beginning of the week, so I've sort of got a personal vendetta against `CCoinsView::Cursor()` returning a raw pointer.
Specifically in the case of CCoinsViewDB, if a raw cursor is allocated and not freed, a cryptic leveldb assertion failure occurs on CCoinsViewDB destruction (`Assertion 'dummy_versions_.next_ == &dummy_versions_' failed.`).
This is a pretty simple change.
Related to: https://github.com/bitcoin/bitcoin/issues/21766
See also: https://github.com/google/leveldb/issues/142#issuecomment-414418135
ACKs for top commit:
MarcoFalke:
review ACK 7ad414f4bf🔎
jonatack:
re-ACK 7ad414f4bf modulo suggestion
ryanofsky:
Code review ACK 7ad414f4bf. Two new commits look good and thanks for clarifying constructor comment
Tree-SHA512: 6471d03e2de674d84b1ea0d31e25f433d52aa1aa4996f7b4aab1bd02b6bc340b15e64cc8ea07bbefefa3b5da35384ca5400cc230434e787c30931b8574c672f9
We don't want the legacy wallet to ever have bech32m addresses so don't
allow importing them. This includes addmultisigaddress as that is a
legacy wallet only RPC
Additionally, bech32m multisigs are not available yet, so disallow them
in createmultisig.
2667366aaa tests: check derivation of P2TR (Pieter Wuille)
7cedafc541 Add tr() descriptor (derivation only, no signing) (Pieter Wuille)
90fcac365e Add TaprootBuilder class (Pieter Wuille)
5f6cc8daa8 Add XOnlyPubKey::CreateTapTweak (Pieter Wuille)
2fbfb1becb Make consensus checking of tweaks in pubkey.* Taproot-specific (Pieter Wuille)
a4bf84039c Separate WitnessV1Taproot variant in CTxDestination (Pieter Wuille)
41839bdb89 Avoid dependence on CTxDestination index order (Pieter Wuille)
31df02a070 Change Solver() output for WITNESS_V1_TAPROOT (Pieter Wuille)
4b1cc08f9f Make XOnlyPubKey act like byte container (Pieter Wuille)
Pull request description:
This is a subset of #21365, to aide review.
This adds support `tr(KEY)` or `tr(KEY,SCRIPT)` or `tr(KEY,{{S1,{{S2,S3},...}},...})` descriptors, describing Taproot outputs with specified internal key, and optionally any number of scripts, in nested groups of 2 inside `{`/`}` if there are more than one. While it permits importing `tr(KEY)`, anything beyond that is just laying foundations for more features later.
Missing:
* Signing support (see #21365)
* Support for more interesting scripts inside the tree (only `pk(KEY)` is supported for now). In particular, a multisig policy based on the new `OP_CHECKSIGADD` opcode would be very useful.
* Inferring `tr()` descriptors from outputs (given sufficient information).
* `getaddressinfo` support.
* MuSig support. Standardizing that is still an ongoing effort, and is generally kind of useless without corresponding PSBT support.
* Convenient ways of constructing descriptors without spendable internal key (especially ones that arent't trivially recognizable as such).
ACKs for top commit:
Sjors:
utACK 2667366 (based on https://github.com/bitcoin/bitcoin/pull/21365#issuecomment-846945215 review, plus the new functional test)
achow101:
Code Review ACK 2667366aaa
lsilva01:
Tested ACK 2667366aaa
meshcollider:
utACK 2667366aaa
Tree-SHA512: 61046fef22c561228338cb178422f0b782ef6587ec8208d3ce2bd07afcff29a664b54b35c6b01226eb70b6540b43f6dd245043d09aa6cb6db1381b6042667e75
Initially these values were 'per block' in an earlier version but were then changed to total values. The names were not updated to reflect that.
-BEGIN VERIFY SCRIPT-
s() { git grep -l "$1" src | xargs sed -i "s/$1/$2/g"; }
s 'm_block_unspendable_amount' 'm_total_unspendable_amount'
s 'm_block_prevout_spent_amount' 'm_total_prevout_spent_amount'
s 'm_block_new_outputs_ex_coinbase_amount' 'm_total_new_outputs_ex_coinbase_amount'
s 'm_block_coinbase_amount' 'm_total_coinbase_amount'
s 'block_unspendable_amount' 'total_unspendable_amount'
s 'block_prevout_spent_amount' 'total_prevout_spent_amount'
s 'block_new_outputs_ex_coinbase_amount' 'total_new_outputs_ex_coinbase_amount'
s 'block_coinbase_amount' 'total_coinbase_amount'
s 'unspendables_genesis_block' 'total_unspendables_genesis_block'
s 'unspendables_bip30' 'total_unspendables_bip30'
s 'unspendables_scripts' 'total_unspendables_scripts'
s 'unspendables_unclaimed_rewards' 'total_unspendables_unclaimed_rewards'
s 'm_unspendables_genesis_block' 'm_total_unspendables_genesis_block'
s 'm_unspendables_bip30' 'm_total_unspendables_bip30'
s 'm_unspendables_scripts' 'm_total_unspendables_scripts'
s 'm_unspendables_unclaimed_rewards' 'm_total_unspendables_unclaimed_rewards'
-END VERIFY SCRIPT-
7a799c9c2b index: refactor-only: Reuse CChain ref (Carl Dong)
db33cde80f index: Add chainstate member to BaseIndex (Carl Dong)
f4a47a1feb bench: Use existing chainman in AssembleBlock (Carl Dong)
91226eb917 bench: Use existing NodeContext in DuplicateInputs (Carl Dong)
e6b4aa6eb5 miner: Pass in chainman to RegenerateCommitments (Carl Dong)
9ecade1425 rest: Add GetChainman function and use it (Carl Dong)
fc1c282845 rpc/blockchain: Use existing blockman in gettxoutsetinfo (Carl Dong)
Pull request description:
Overall PR: #20158 (tree-wide: De-globalize ChainstateManager)
The first 2 commits are fixups addressing review for the last bundle: #21391
NEW note:
1. I have opened #21766 which keeps track of potential improvements where the flaws already existed before the de-globalization work, please post on that issue about these improvements, thanks!
Note to reviewers:
1. This bundle may _apparently_ introduce usage of `g_chainman` or `::Chain(state|)Active()` globals, but these are resolved later on in the overall PR. [Commits of overall PR](https://github.com/bitcoin/bitcoin/pull/20158/commits)
2. There may be seemingly obvious local references to `ChainstateManager` or other validation objects which are not being used in callers of the current function in question, this is done intentionally to **_keep each commit centered around one function/method_** to ease review and to make the overall change systematic. We don't assume anything about our callers. Rest assured that once we are considering that particular caller in later commits, we will use the obvious local references. [Commits of overall PR](https://github.com/bitcoin/bitcoin/pull/20158/commits)
3. When changing a function/method that has many callers (e.g. `LookupBlockIndex` with 55 callers), it is sometimes easier (and less error-prone) to use a scripted-diff. When doing so, there will be 3 commits in sequence so that every commit compiles like so:
1. Add `new_function`, make `old_function` a wrapper of `new_function`, divert all calls to `old_function` to `new_function` **in the local module only**
2. Scripted-diff to divert all calls to `old_function` to `new_function` **in the rest of the codebase**
3. Remove `old_function`
ACKs for top commit:
jarolrod:
ACK 7a799c9
ariard:
Code Review ACK 7a799c9
fjahr:
re-ACK 7a799c9c2b
MarcoFalke:
review ACK 7a799c9c2b🌠
ryanofsky:
Code review ACK 7a799c9c2b. Basically no change since last review except fixed rebase conflicts and a new comment about REST Ensure()
jamesob:
conditional ACK 7a799c9c2b ([`jamesob/ackr/21767.1.dongcarl.bundle_6_n_prune_g_chai`](https://github.com/jamesob/bitcoin/tree/ackr/21767.1.dongcarl.bundle_6_n_prune_g_chai))
Tree-SHA512: 531c00ddcb318817457db2812d9a9d930bc664e58e6f7f1c746350732b031dd624270bfa6b9f49d8056aeb6321d973f0e38e4ff914acd6768edd8602c017d10e
13650fe2e5 [policy] detect unsorted packages (glozow)
9ef643e21b [doc] add release note for package testmempoolaccept (glozow)
c4259f4b7e [test] functional test for packages in RPCs (glozow)
9ede34a6f2 [rpc] allow multiple txns in testmempoolaccept (glozow)
ae8e6df709 [policy] limit package sizes (glozow)
c9e1a26d1f [fuzz] add ProcessNewPackage call in tx_pool fuzzer (glozow)
363e3d916c [test] unit tests for ProcessNewPackage (glozow)
cd9a11ac96 [test] make submit optional in CreateValidMempoolTransaction (glozow)
2ef187941d [validation] package validation for test accepts (glozow)
578148ded6 [validation] explicit Success/Failure ctors for MempoolAcceptResult (glozow)
b88d77aec5 [policy] Define packages (glozow)
249f43f3cc [refactor] add option to disable RBF (glozow)
897e348f59 [coins/mempool] extend CCoinsViewMemPool to track temporary coins (glozow)
42cf8b25df [validation] make CheckSequenceLocks context-free (glozow)
Pull request description:
This PR enables validation dry-runs of packages through the `testmempoolaccept` RPC. The expectation is that the results returned from `testmempoolaccept` are what you'd get from test-then-submitting each transaction individually, in that order (this means the package is expected to be sorted in topological order, for now at least). The validation is also atomic: in the case of failure, it immediately halts and may return "unfinished" `MempoolAcceptResult`s for transactions that weren't fully validated. The API for 1 transaction stays the same.
**Motivation:**
- This allows you to test validity for transaction chains (e.g. with multiple spending paths and where you don't want to broadcast yet); closes#18480.
- It's also a first step towards package validation in a minimally invasive way.
- The RPC commit happens to close#21074 by clarifying the "allowed" key.
There are a few added restrictions on the packages, mostly to simplify the logic for areas that aren't critical to main package use cases:
- No package can have conflicts, i.e. none of them can spend the same inputs, even if it would be a valid BIP125 replacement.
- The package cannot conflict with the mempool, i.e. RBF is disabled.
- The total count of the package cannot exceed 25 (the default descendant count limit), and total size cannot exceed 101KvB (the default descendant size limit).
If you're looking for review comments and github isn't loading them, I have a gist compiling some topics of discussion [here](https://gist.github.com/glozow/c3acaf161c95bba491fce31585b2aaf7)
ACKs for top commit:
laanwj:
Code review re-ACK 13650fe2e5
jnewbery:
Code review ACK 13650fe2e5
ariard:
ACK 13650fe
Tree-SHA512: 8c5cbfa91a6c714e1c8710bb281d5ff1c5af36741872a7c5df6b24874d6272b4a09f816cb8a4c7de33ef8e1c2a2c252c0df5105b7802f70bc6ff821ed7cc1a2f
Pass in chainman instead of prev_block so that we can enforce the
block.hashPrevBlock refers to prev_block invariant in the function
itself.
We should probably rethink BlockAssembler's API and somehow include
commitment regeneration functionality in there. Something like a variant
of CreateNewBlock that takes in a std::vector<TxRef> and return a CBlock
instead of CBlockTemplate. That could avoid reaching for
LookupBlockIndex at all.
Only allow "packages" with no conflicts, sorted in order of dependency,
and no more than 25 for now. Note that these groups of transactions
don't necessarily need to adhere to some strict definition of a package
or have any dependency relationships. Clients are free to pass in a
batch of 25 unrelated transactions if they want to.
ce6bca88e8 doc: release note for getnodeaddresses by network (Jon Atack)
3f89c0e990 test: improve getnodeaddresses coverage, test by network (Jon Atack)
6c98c09991 rpc: enable filtering getnodeaddresses by network (Jon Atack)
80ba294854 p2p: allow CConnman::GetAddresses() by network, add doxygen (Jon Atack)
a49f3ddbba p2p: allow CAddrMan::GetAddr() by network, add doxygen (Jon Atack)
c38981e748 p2p: pull time call out of loop in CAddrMan::GetAddr_() (João Barbosa)
d35ddca91e p2p: enable CAddrMan::GetAddr_() by network, add doxygen (Jon Atack)
Pull request description:
This patch allows passing a network argument to CAddrMan::GetAddr(), CConnman::GetAddresses(), and rpc getnodeaddresses to return only addresses of that network.
It also contains a performance optimisation by promag.
ACKs for top commit:
laanwj:
Code review and lightly tested ACK ce6bca88e8
vasild:
ACK ce6bca88e8
Tree-SHA512: 40e700d97091248429c73cbc0639a1f03ab7288e636a7b9026ad253e9708253c6b2ec98e7d9fb2d56136c0f762313dd648915ac98d723ee330d713813a43f99d
6e2eb0d63b rpc/wallet: use OMITTED_NAMED_ARG instead of Default(VNULL) (Karl-Johan Alm)
4983f4cba4 rpc/createwallet: omitted named arguments (Karl-Johan Alm)
dc4db23b30 rpc: address:amount dictionaries are OBJ_USER_KEYS (Karl-Johan Alm)
c8cf0a3d51 rpc/getpeerinfo: bytesrecv_per_msg is a dynamic dictionary (Karl-Johan Alm)
eb4fb7e507 rpc/gettxoutsetinfo: hash_or_height is a named argument (Karl-Johan Alm)
Pull request description:
This is a follow-up to #21897, and I believe covers the remaining cases, at least that I could find.
Edited to remove unrelated information about a side project.
ACKs for top commit:
laanwj:
Documentation diff ACK 6e2eb0d63b
promag:
Code review ACK 6e2eb0d63b.
Tree-SHA512: d26f6e074e13d64bbca2a114a0adc7f905d47d238c4e9bc49f70ca0b775afbebf9879fc3794ab29dc316a6dbd00ba8cbeb01197e236ee4ab2e9854db25f23f04
