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Merge bitcoin/bitcoin#28950: RPC: Add maxfeerate and maxburnamount args to submitpackage

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38f70ba6ac RPC: Add maxfeerate and maxburnamount args to submitpackage (Greg Sanders)

Pull request description:

  Resolves https://github.com/bitcoin/bitcoin/issues/28949

  I couldn't manage to do it very cleanly outside of (sub)package evaluation itself, since it would change the current interface very heavily. Instead I threaded through the max fee argument and used that directly via ATMPArgs. From that perspective, this is somewhat a reversion from https://github.com/bitcoin/bitcoin/pull/19339. In a post-cluster mempool world, these checks could be consolidated to right after the given (ancestor) package is linearized/chunked, by just checking the feerate of the top chunk and rejecting the submission entirely if the top chunk is too high.

  The implication here is that subpackages can be submitted to the mempool prior to hitting this new fee-based error condition.

ACKs for top commit:
  ismaelsadeeq:
    Re-ACK 38f70ba6ac 👍🏾
  glozow:
    ACK 38f70ba6ac with some non-blocking nits
  murchandamus:
    LGTM, code review ACK 38f70ba6ac

Tree-SHA512: 38212aa9de25730944cee58b0806a3d37097e42719af8dd7de91ce86bb5d9770b6f7c37354bf418bd8ba571c52947da1dcdbb968bf429dd1dbdf8715315af18f
This commit is contained in:
glozow
2024-03-18 18:23:57 +00:00
parent 9a459e3ab9 38f70ba6ac
commit 5d045c31a5
9 changed files with 124 additions and 30 deletions
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6
src/validation.h
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@@ -274,13 +274,15 @@ MempoolAcceptResult AcceptToMemoryPool(Chainstate& active_chainstate, const CTra
/**
* Validate (and maybe submit) a package to the mempool. See doc/policy/packages.md for full details
* on package validation rules.
* @param[in] test_accept When true, run validation checks but don't submit to mempool.
* @param[in] test_accept When true, run validation checks but don't submit to mempool.
* @param[in] max_sane_feerate If exceeded by an individual transaction, rest of (sub)package evalution is aborted.
* Only for sanity checks against local submission of transactions.
* @returns a PackageMempoolAcceptResult which includes a MempoolAcceptResult for each transaction.
* If a transaction fails, validation will exit early and some results may be missing. It is also
* possible for the package to be partially submitted.
*/
PackageMempoolAcceptResult ProcessNewPackage(Chainstate& active_chainstate, CTxMemPool& pool,
const Package& txns, bool test_accept)
const Package& txns, bool test_accept, std::optional<CFeeRate> max_sane_feerate)
EXCLUSIVE_LOCKS_REQUIRED(cs_main);
/* Mempool validation helper functions */