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Merge bitcoin#19776: net, rpc: expose high bandwidth mode state via g…
…etpeerinfo 343dc47 test: add test for high-bandwidth mode states in getpeerinfo (Sebastian Falbesoner) dab6583 doc: release note for new getpeerinfo fields "bip152_hb_{from,to}" (Sebastian Falbesoner) a7ed00f rpc: expose high-bandwidth mode states via getpeerinfo (Sebastian Falbesoner) 30bc8fa net: save high-bandwidth mode states in CNodeStats (Sebastian Falbesoner) Pull request description: Fixes bitcoin#19676, "_For every peer expose through getpeerinfo RPC whether or not we selected them as HB peers, and whether or not they selected us as HB peers._" See [BIP152](https://github.com/bitcoin/bips/blob/master/bip-0152.mediawiki), in particular the [protocol flow diagram](https://github.com/bitcoin/bips/raw/master/bip-0152/protocol-flow.png). The newly introduced states are changed on the following places in the code: * on reception of a `SENDCMPCT` message with valid version, the field `m_highbandwidth_from` is changed depending on the first integer parameter in the message (1=high bandwidth, 0=low bandwidth), i.e. it just mirrors the field `CNodeState.fPreferHeaderAndIDs`. * after adding a `SENDCMPCT` message to the send queue, the field `m_highbandwidth_to` is changed depending on how the first integer parameter is set (same as above) Note that after receiving `VERACK`, the node also sends `SENDCMPCT`, but that is only to announce the preferred version and never selects high-bandwidth mode, hence there is no need to change the state variables there, which are initialized to `false` anyways. ACKs for top commit: naumenkogs: reACK 343dc47 jonatack: re-ACK 343dc47 per `git range-diff 7ea6499 4df1d12 343dc47` Tree-SHA512: f4999e6a935266812c2259a9b5dc459710037d3c9e938006d282557cc225e56128f72965faffb207fc60c6531fab1206db976dd8729a69e8ca29d4835317b99f
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Original file line number | Diff line number | Diff line change |
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Updated RPCs | ||
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- The `getpeerinfo` RPC returns two new boolean fields, `bip152_hb_to` and | ||
`bip152_hb_from`, that respectively indicate whether we selected a peer to be | ||
in compact blocks high-bandwidth mode or whether a peer selected us as a | ||
compact blocks high-bandwidth peer. High-bandwidth peers send new block | ||
announcements via a `cmpctblock` message rather than the usual inv/headers | ||
announcements. See BIP 152 for more details. (#19776) |
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