d831e711ca [validation] RewindBlockIndex no longer needed (Dhruv Mehta)
Pull request description:
Closes #17862
Context from [original comment](https://github.com/bitcoin/bitcoin/issues/17862#issuecomment-744285188) (minor edits):
`RewindBlockIndex()` is a mechanism to allow nodes to be upgraded after segwit activation, while still keeping their chainstate/datadir in a consistent state. It works as follows:
- A pre-segwit (i.e. v0.13.0 or older) node is running.
- Segwit activates. The pre-segwit node remains sync'ed to the tip, but is not enforcing the new segwit rules.
- The user upgrades the node to a segwit-aware version (v0.13.1 or newer).
- On startup, in `AppInitMain()`, `RewindBlockIndex()` is called. This walks the chain backwards from the tip, disconnecting and erasing blocks that from after segwit activation that weren't validated with segwit rules.
- those blocks are then redownloaded (with witness data) and validated with segwit rules.
This logic probably isn't required any more since:
- Segwit activated at height 481824, when the block chain was 130GB and the total number of txs was 250 million. Today, we're at height 667704, the blockchain is over 315GB and the total number of txs is over 600 million. Even if 20% of that added data is witness data (a high estimate), then around 150GB of transactions would need to be rewound to get back to segwit activation height. It'd probably be faster to simply validate from genesis, especially since we won't be validating any scripts before the assumevalid block. It's also unclear whether rewinding 150GB of transactions would even work. It's certainly never been tested.
- Bitcoin Core v0.13 is hardly used any more. https://luke.dashjr.org/programs/bitcoin/files/charts/software.html shows less than 50 nodes running it. The software was EOL on Aug 1st 2018. It's very unlikely that anyone is running 0.13 and will want to upgrade to 0.22.
This PR introduces `NeedsRedownload()` which merely checks for insufficiently validated segwit blocks and requests that the user restarts the node with `-reindex`. Reindexing the block files upon restart will make the node rebuild chain state and block index from the `blk*.dat` files on disk. The node won't be able to index the blocks with `BLOCK_OPT_WITNESS`, so they will be missing from the chain and be re-downloaded, with witness data.
Removing this code allows the following (done in follow-up #21090):
- removal of tests using `segwitheight=-1` in `p2p_segwit.py`.
- in turn, that allows us to drop support for `-segwitheight=-1`, which is only supported for that test.
- that allows us to always set `NODE_WITNESS` in our local services. The only reason we don't do that is to support `-segwitheight=-1`.
- that in turn allows us to drop all of the `GetLocalServices() & NODE_WITNESS` checks inside `net_processing.cpp`, since our local services would always include `NODE_WITNESS`
ACKs for top commit:
jnewbery:
utACK d831e711ca
jamesob:
ACK d831e711ca
laanwj:
Cursory code review ACK d831e711ca. Agree with the direction of the change, thanks for simplifying the logic here.
glozow:
utACK d831e711ca
Tree-SHA512: 3eddf5121ccd081ad7f15a5c6478ef867083edc8ba0bf1ee759e87bc070ee3d2f0698a3feba8db8dc087987c8452887b6f72cff05b3e178f41cb10a515fb8053
785f9cc46a refactor: init: mark fReset const (James O'Beirne)
Pull request description:
Small thing, but hey - it doesn't change.
ACKs for top commit:
theStack:
Code-review ACK 785f9cc46a
Tree-SHA512: 3cb8d7037f517162f6315d561accc4932b0f1e340162c3283871433f2e355d57b3740c9d2e953ce33fbfa3b277c8437f91955fb70331b3fe9c8e6a8589dc2b49
5f438d66c1 refactor, qt: Simplify SendCoinsDialog::updateCoinControlState (João Barbosa)
Pull request description:
This PR doesn't change behaviour, removes the coin control argument from `updateCoinControlState` since it's a class member.
ACKs for top commit:
hebasto:
ACK 5f438d66c1, I have reviewed the code and it looks OK, I agree it can be merged.
jonatack:
Code review ACK 5f438d66c1
kristapsk:
utACK 5f438d66c1. Code looks correct.
Tree-SHA512: 14abaa3d561f8c8854fed989b6aca886dcca42135880bac76070043f61c0042ec8967f2b83e50bbbb82050ef0f074209e97fa300cb4dc51ee182316e0846506d
8c8237a4a1 net, refactor: Fix style in CConnman::StopNodes (Hennadii Stepanov)
229ac1892d net: Combine two loops into one, and update comments (Hennadii Stepanov)
a3d090d110 net: Restrict period when cs_vNodes mutex is locked (Hennadii Stepanov)
Pull request description:
This PR restricts the period when the `cs_vNodes` mutex is locked, prevents the only case when `cs_vNodes` could be locked before the `::cs_main`.
This change makes the explicit locking of recursive mutexes in the explicit order redundant.
ACKs for top commit:
jnewbery:
utACK 8c8237a4a1
vasild:
ACK 8c8237a4a1
ajtowns:
utACK 8c8237a4a1 - logic seems sound
MarcoFalke:
review ACK 8c8237a4a1👢
Tree-SHA512: a8277924339622b188b12d260a100adf5d82781634cf974320cf6007341f946a7ff40351137c2f5369aed0d318f38aac2d32965c9b619432440d722a4e78bb73
Add simple interfaces::Echo IPC interface with one method that just takes and
returns a string, to test multiprocess framework and provide an example of how
it can be used to spawn and call between processes.
615965cfd1 Move common package version code to init/common (Russell Yanofsky)
5bed2ab42c Move common logging start code to init/common (Russell Yanofsky)
1fb7fcfa52 Move common logging GetArgs code to init/common (Russell Yanofsky)
90469c1690 Move common logging AddArg code to init/common (Russell Yanofsky)
387c4cf588 Move common sanity check code to init/common (Russell Yanofsky)
a67b54855b Move common global init code to init/common (Russell Yanofsky)
Pull request description:
This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/projects/10).
---
This change is move-only and can be easily reviewed with `--color-moved=dimmed_zebra`. The moves are needed to avoid duplicating common init code between different binaries (`bitcoin-node`, `bitcoin-wallet`, etc) in #10102. In #10102, each binary has it's own init file (`src/init/bitcoin-node.cpp`, `src/init/bitcoin-wallet.cpp`) so this PR moves the common code to `src/init/common.cpp`.
ACKs for top commit:
MarcoFalke:
review ACK 615965cfd1 🖱
practicalswift:
cr ACK 615965cfd1: dimmed zebra looks correct
Tree-SHA512: 859e1d86aee17eb50a49d806cf62d30d12f6b15018e41c096da41d7e535a9d2d088481cb340fee59e6c68e512a74b61c7146f2683465f553dc4953bf32f2a7b4
It is not possible to have a node in `CConnman::vNodesDisconnected` and
its reference count to be incremented - all `CNode::AddRef()` are done
either before the node is added to `CConnman::vNodes` or while holding
`CConnman::cs_vNodes` and the object being in `CConnman::vNodes`.
So, the object being in `CConnman::vNodesDisconnected` and its reference
count being zero means that it is not and will not start to be used by
other threads.
So, the lock of `CNode::cs_vSend` in `CConnman::DisconnectNodes()` will
always succeed and is not necessary.
Indeed all locks of `CNode::cs_vSend` are done either when the reference
count is >0 or under the protection of `CConnman::cs_vNodes` and the
node being in `CConnman::vNodes`.
fafb68add5 refactor: Add and use EnsureConnman in rpc code (MarcoFalke)
faabeb854a refactor: Mark member functions const (MarcoFalke)
Pull request description:
This removes the 10 occurrences of `throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");` and replaces them with `EnsureConnman`.
ACKs for top commit:
jarolrod:
re-ACK fafb68add5
theStack:
ACK fafb68add5
ryanofsky:
Code review ACK fafb68add5
Tree-SHA512: 84c63cfe31e548645d906f7191a3526c7bea99ed0d54c2a75c2041452a44fe149ede343d8e1943b0e7770816c828bb047dfec8bc541a1f2b89920a126ee54d68
16c157de3c qt, refactor: Use better QMenu::addAction overloaded function (Hennadii Stepanov)
79311750b5 qt: Do not assign Alt+<KEY> shortcuts to context menu actions (Hennadii Stepanov)
963e12058f qt: Drop menu separator that separates nothing (Hennadii Stepanov)
1398a6536c qt, refactor: Make AddressBookPage::deleteAction a local variable (Hennadii Stepanov)
Pull request description:
This PR:
1. removes useless `Alt` + `<KEY>` shortcuts from context menu items
2. replaces 3 lines of code with the only call of [`QMenu::addAction`](https://doc.qt.io/qt-5/qmenu.html#addAction-5) for each context menu item (it became possible since https://github.com/bitcoin/bitcoin/pull/21286 was merged)
3. makes other minor cleanups
No behavior change.
ACKs for top commit:
kristapsk:
ACK 16c157de3c
promag:
Code review ACK 16c157de3c. Nice code cleanup that takes advantage of more recent Qt API.
jarolrod:
ACK 16c157de3c
Tree-SHA512: e5555fe957058cc67b351aaf9f09fe3635edb2d07a2223d3093913a25607ae538f0a2fde84c0b0cd43e7475b248949548eb4a5d4b21d8f7391fa2fa8541c04ff
35d52397e7 Add bitcoin_en.xlf intermediate translation file to the repo (Hennadii Stepanov)
99686b6519 qt [experimental]: Add a translation comment and a disambiguation string (Hennadii Stepanov)
f959b75e8c build: Add Qt lconvert tool to depends (Hennadii Stepanov)
2045e4cdd2 build: Use XLIFF file to provide more context to Transifex translators (Hennadii Stepanov)
Pull request description:
Currently, only a class name is provided to the Transifex translators as a context. Neither `disambiguation` parameter of the `tr()` function nor [translator comments](https://doc.qt.io/qt-5/i18n-source-translation.html#translator-comments), being included as XML elements to `*.ts` translation files, are not parsed by the Transifex due to its [limited support](https://docs.transifex.com/formats/qt-ts) of such files.
This PR makes possible to provide all of the context details via an intermediate [XLIFF](https://docs.transifex.com/formats/xliff) translation file.
With this PR `make -C src translate` produces the `src/qt/locale/bitcoin_en.xlf` file which must be provided to the Transifex as a translation source instead of `src/qt/locale/bitcoin_en.ts`.
Closes #21465.
An example translatable string with additional `<context>` and `<note>` XML elements: 35d52397e7/src/qt/locale/bitcoin_en.xlf (L126-L132)
ACKs for top commit:
laanwj:
ACK 35d52397e7
Tree-SHA512: cc19e3c09501d240153550d75d7697b5f824cb553f4223beaff66be4d3e6f98d7b5bb14f2d1e1d5ad014eaaa498a7f672e7ff0054ced53ace8c1e6f7e49f6d8a
06c43201a7 cli: use C++17 std::array class template argument deduction (CTAD) (Jon Atack)
edf3167151 addrinfo: raise helpfully on server error or incompatible server version (Jon Atack)
bb85cbc4f7 doc: add cli -addrinfo release note (Jon Atack)
5056a37624 cli: add -addrinfo command (Jon Atack)
db4d2c282a cli: create AddrinfoRequestHandler class (Jon Atack)
Pull request description:
While looking at issue #21351, it turned out that the problem was a lack of tor v3 addresses known to the node. It became clear (e.g. https://github.com/bitcoin/bitcoin/issues/21351#issuecomment-811004779) that a CLI command returning the number of addresses the node knows per network (with a tor v2 / v3 breakdown) would be very helpful. This patch adds that.
`-addrinfo` is useful to see if your node knows enough addresses in a network to use options like `-onlynet=<network>`, or to upgrade to the upcoming tor release that no longer supports tor v2, for which you'll need to be sure your node knows enough tor v3 peers.
```
$ bitcoin-cli --help | grep -A1 addrinfo
-addrinfo
Get the number of addresses known to the node, per network and total.
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 14406,
"ipv6": 2511,
"torv2": 5563,
"torv3": 2842,
"i2p": 8,
"total": 25330
}
}
$ bitcoin-cli -addrinfo 1
error: -addrinfo takes no arguments
```
This can be manually tested, for example, with commands like this:
```
$ bitcoin-cli getnodeaddresses 0 | jq '.[] | (select(.address | contains(".onion")) | select(.address | length <= 22)) | .address' | wc -l
5563
$ bitcoin-cli getnodeaddresses 0 | jq '.[] | (select(.address | contains(".onion")) | select(.address | length > 22)) | .address' | wc -l
2842
$ bitcoin-cli getnodeaddresses 0 | jq '.[] | .address' | wc -l
25330
```
ACKs for top commit:
laanwj:
Tested ACK 06c43201a7
Tree-SHA512: b668b47718a4ce052aff218789f3da629bca730592c18fcce9a51034d95a0a65f8e6da33dd47443cdd8f60c056c02696db175b0fe09a688e4385a76c1d8b7aeb
0b188b751f Clean up context dependent checks in descriptor parsing (Pieter Wuille)
33275a9649 refactor: move uncompressed-permitted logic into ParsePubkey* (Pieter Wuille)
17e006ff8d refactor: split off subscript logic from ToStringHelper (Pieter Wuille)
6ba5dda0c9 Account for key cache indices in subexpressions (Pieter Wuille)
4441c6f3c0 Make DescriptorImpl support multiple subscripts (Pieter Wuille)
a917478db0 refactor: move population of out.scripts from ExpandHelper to MakeScripts (Pieter Wuille)
84f3939ece Remove support for subdescriptors expanding to multiple scripts (Pieter Wuille)
Pull request description:
These are a few refactors and non-invasive improvements to the descriptors code to prepare for adding Taproot descriptors.
None of the commits change behavior in any way, except the last one which improves error reporting a bit.
ACKs for top commit:
S3RK:
reACK 0b188b7
Sjors:
re-ACK 0b188b7
achow101:
re-ACK 0b188b751f
Tree-SHA512: cb4e999134aa2bace0e13d4883454c65bcf1369e1c8585d93cc6444ddc245f3def5a628d58af7dab577e9d5a4a75d3bb46f766421fcc8cc5c85c01a11f148b3f
fa8eaee6a8 test: Run versionbits_sanity for all chains (MarcoFalke)
faec1e9ee1 test: Address outstanding versionbits_test feedback (MarcoFalke)
fad4167871 test: Check that no versionbits are re-used (MarcoFalke)
Pull request description:
ACKs for top commit:
jnewbery:
Code review ACK fa8eaee6a8
ajtowns:
ACK fa8eaee6a8 code review only
Tree-SHA512: e99ffcca8970921fd07fa9e04cf1ea2515a317409865d34ddfd70be0f0b0616b29d1fad58262d96a3c3418c0cf7018a6a955802a178b8f78f6ecfaa30a37d91c
bb8d1c6e02 Change ClearDataDirPathCache() to ArgsManager.ClearPathCache(). (Kiminuo)
b4190eff72 Change GetBlocksDir() to ArgsManager.GetBlocksDirPath(). (Kiminuo)
83292e2a70 scripted-diff: Modify unit tests to use the ArgsManager in the BasicTestingSetup class instead of implicitly relying on gArgs. (Kiminuo)
55c68e6f01 scripted-diff: Replace m_args with m_local_args in getarg_tests.cpp (Kiminuo)
511ce3a26b BasicTestingSetup: Add ArgsManager. (Kiminuo)
1cb52ba065 Modify "util_datadir" unit test to not use gArgs. (Kiminuo)
1add318704 Move GetDataDir(fNetSpecific) implementation to ArgsManager. (Kiminuo)
70cdf679f8 Move StripRedundantLastElementsOfPath before ArgsManager class. (Kiminuo)
Pull request description:
This PR attempts to contribute to "Remove gArgs" (#21005).
Main changes:
* `GetDataDir()` function is moved to `ArgsManager.GetDataDirPath()`.
* `GetBlocksDir()` function is moved to `ArgsManager.GetBlocksDirPath()`.
ACKs for top commit:
ryanofsky:
Code review ACK bb8d1c6e02. Just minor const/naming changes and splitting/scripting commits since last review
MarcoFalke:
review ACK bb8d1c6e02📓
hebasto:
re-ACK bb8d1c6e02, addressed comments, and two commits made scripted-diffs since my [previous](https://github.com/bitcoin/bitcoin/pull/21244#pullrequestreview-638270583) review.
Tree-SHA512: ba9408c22129d6572beaa103dca0324131766f06d562bb7d6b9e214a0a4d40b0216ce861384562bde24b744003b3fbe6fac239061c8fd798abd3981ebc1b9019
f2f2541ee7 remove executable flag for src/net_processing.cpp (Sebastian Falbesoner)
Pull request description:
The file permissions for `src/net_processing.cpp` have been changed in #21713, as discovered by fanquake (https://github.com/bitcoin/bitcoin/pull/21713#issuecomment-822245960). This PR removes the executable flag again.
ACKs for top commit:
kiminuo:
ACK f2f2541ee7 :)
jnewbery:
ACK f2f2541ee7
promag:
ACK f2f2541ee7.
Tree-SHA512: 1d5a62afb1152029e69fccea2ae53dcb262a91724a5c03dfc4de8c409b280814d0c211c2f9a71f1a6e927f4ed571ba4ac311de9de8ebb797eaf1051674241bdb
