BIP434 defines FEATURE messages which are sent between VERSION and VERACK
to indicate support for new P2P protocol features. This commit provides
the infrastructure for easily using BIP434 negotiation when implementing
such new P2P protocol features. Note that advertised protocol version
is bumped to 70017, as per BIP434's specification.
107d4178d9 versionbits: update VersionBitsCache doc comment to match current behaviour (Antoine Poinsot)
94e3ac0b21 doc: release notes and bips doc update for #34779 (Antoine Poinsot)
1d5240574a qa: test we don't warn for ignored unknown version bits deployments (Antoine Poinsot)
f802edf57c versionbits: Limit live activation params and activation warnings per BIP323 (Anthony Towns)
Pull request description:
This implements https://github.com/bitcoin/bips/pull/2116, which repurposes 24 version bits as extra nonce space for miners rather than soft fork deployment coordination. 24 bits allows a miner to perform up to 72 PH before needing a fresh job from its controller. The current 16 bits in use by miners only allow up to 280 TH, which [apparently led some ASIC designers to start rolling the timestamp field](https://github.com/bitaxeorg/ESP-Miner/pull/1553#issuecomment-3937736319) on their beefier machines.
Mailing list discussion available [here](https://gnusha.org/pi/bitcoindev/6fa0cb45-37d6-4b41-9ff8-03730fd96d6e@mattcorallo.com/). A previous shot at this is https://github.com/bitcoin/bitcoin/pull/13972 (with a smaller extranonce space).
This change only affects the warning logic.
ACKs for top commit:
ajtowns:
ACK 107d4178d9
achow101:
ACK 107d4178d9
sedited:
Re-ACK 107d4178d9
optout21:
ACK 107d4178d9
Tree-SHA512: cfaf5d7de1e8c020a4d7f4b1096b6c3e0e3b41ea840a4652ebcdabc345c5c557161c8304f1d7d6de541a2bf1df3c855ad7b64e49dd8c8af3937876d134bb5aba
It can be argued that BIP125#1 signaling is honored because
descendants of signaling transactions are replaceable by RBF.
Regardless, since there are multiple details in our RBF policy that are
not captured in BIP125, point to our doc instead.
fa25f43ac5 p2p: Remove BIP61 reject messages (MarcoFalke)
Pull request description:
Reject messages (BIP 61) appear in the following settings:
* Parsing of reject messages (in case `-debug=net` is set, off by default). This has only been used for a single `LogPrint` call for several releases now. Such logging is completely meaningless to us and should thus be removed.
* The sending of reject messages (in case `-enablebip61` is set, off by default). This can be used to debug a node that is under our control. Instead of hacking this debugging into the p2p protocol, it could be more easily achieved by parsing the debug log. (Use `-printtoconsole` to have it as stream, or read from the `debug.log` file like our python function `assert_debug_log` in the test framework does)
Having to maintain all of this logic and code to accommodate debugging, which can be achieved by other means a lot easier, is a burden. It makes review on net processing changes a lot harder, since the reject message logic has to be carried around without introducing any errors or DOS vectors.
ACKs for top commit:
jnewbery:
utACK fa25f43ac5
laanwj:
I'm still not 100% convinced that I like getting rid of BIP61 conceptually, but apparently everyone wants it, code review ACK fa25f43ac5.
ryanofsky:
Code review ACK fa25f43ac5
Tree-SHA512: daf55254202925e56be3d6cfb3c1c804e7a82cecb1dd1e5bd7b472bae989fd68ac4f21ec53fc46751353056fd645f7f877bebcb0b40920257991423a3d99e0be
