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init: abort loading of blockindex in case of missing height.

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If a height is missing we are facing a non-contiguous block index db, and could previously
hit an assert in GetAncestor() called from BuildSkip() instead of returning an error.
This commit is contained in:
Martin Zumsande 2023-06-02 16:36:01 -04:00
parent 57b8336dfe
commit ad66ca1e47
1 changed files with 5 additions and 0 deletions
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5
src/node/blockstorage.cpp
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@ -259,8 +259,13 @@ bool BlockManager::LoadBlockIndex()
std::sort(vSortedByHeight.begin(), vSortedByHeight.end(), std::sort(vSortedByHeight.begin(), vSortedByHeight.end(),
CBlockIndexHeightOnlyComparator()); CBlockIndexHeightOnlyComparator());
CBlockIndex* previous_index{nullptr};
for (CBlockIndex* pindex : vSortedByHeight) { for (CBlockIndex* pindex : vSortedByHeight) {
if (m_interrupt) return false; if (m_interrupt) return false;
if (previous_index && pindex->nHeight > previous_index->nHeight + 1) {
return error("%s: block index is non-contiguous, index of height %d missing", __func__, previous_index->nHeight + 1);
}
previous_index = pindex;
pindex->nChainWork = (pindex->pprev ? pindex->pprev->nChainWork : 0) + GetBlockProof(*pindex); pindex->nChainWork = (pindex->pprev ? pindex->pprev->nChainWork : 0) + GetBlockProof(*pindex);
pindex->nTimeMax = (pindex->pprev ? std::max(pindex->pprev->nTimeMax, pindex->nTime) : pindex->nTime); pindex->nTimeMax = (pindex->pprev ? std::max(pindex->pprev->nTimeMax, pindex->nTime) : pindex->nTime);