mirror of
https://github.com/bitcoin/bitcoin.git
synced 2026-03-10 15:45:36 +01:00
626b7c8493fuzz: add scanblocks as safe for fuzzing (James O'Beirne)94fe5453c7test: rpc: add scanblocks functional test (Jonas Schnelli)6ef2566b68rpc: add scanblocks - scan for relevant blocks with descriptors (Jonas Schnelli)a4258f6e81rpc: move-only: consolidate blockchain scan args (James O'Beirne) Pull request description: Revives #20664. All feedback from the previous PR has either been responded to inline or incorporated here. --- Major changes from Jonas' PR: - consolidated arguments for scantxoutset/scanblocks - substantial cleanup of the functional test Here's the range-diff (`git range-diff master jonasschnelli/2020/12/filterblocks_rpc jamesob/2021-11-scanblocks`): https://gist.github.com/jamesob/aa4a975344209f0316444b8de2ec1d18 ### Original PR description > The `scanblocks` RPC call allows one to get relevant blockhashes from a set of descriptors by scanning all blockfilters in a given range. > > **Example:** > > `scanblocks start '["addr(<bitcoin_address>)"]' 661000` (returns relevant blockhashes for `<bitcoin_address>` from blockrange 661000->tip) > > ## Why is this useful? > **Fast wallet rescans**: get the relevant blocks and only rescan those via `rescanblockchain getblockheader(<hash>)[height] getblockheader(<hash>)[height])`. A future PR may add an option to allow to provide an array of blockhashes to `rescanblockchain`. > > **prune wallet rescans**: (_needs additional changes_): together with a call to fetch blocks from the p2p network if they have been pruned, it would allow to rescan wallets back to the genesis block in pruned mode (relevant #15946). > > **SPV mode** (_needs additional changes_): it would be possible to build the blockfilterindex from the p2p network (rather then deriving them from the blocks) and thus allow some sort of hybrid-SPV mode with moderate bandwidth consumption (related #9483) ACKs for top commit: furszy: diff re-ACK626b7c8Tree-SHA512: f84e4dcb851b122b39e9700c58fbc31e899cdcf9b587df9505eaf1f45578cc4253e89ce2a45d1ff21bd213e31ddeedbbcad2c80810f46755b30acc17b07e2873