Resilience audit, migrate-to-seed (the sweep RPC is byte-identical — see below):
- Adopt was enabled at >= 1 confirmation and never re-read state before stopping the daemon, so a 1-block
reorg after the swap could un-mine the sweep and strand the funds in the .bak. Adopt now needs a
reorg-safe depth (>= 10, matching the History "confirmed" threshold), and the button runs
verifyThenAdoptSeedWallet(): a read-only gettransaction(confs) + z_gettotalbalance minconf 0 (includes
unconfirmed, fixing the old minconf-1 "no funds" gate) immediately before the daemon stop, refusing while
syncing or if any read fails. The remainder re-sweep still shows once mined (>=1).
- The wallet.dat swap was rename(legacy->bak) then non-atomic copy(new->wallet.dat): a hard kill left
wallet.dat missing or half-written. New order: probe the new file is a BDB wallet; stage a size-verified
copy beside wallet.dat; COPY (never overwrite) the legacy wallet to the timestamped .bak and verify it;
then ONE atomic fs::rename of the staged file over wallet.dat. At every instant wallet.dat is the whole
old or whole new wallet, and a verified .bak exists before the replace. On any failure only our scratch
files are removed; the user's wallet is untouched.
Byte-identical: z_mergetoaddress (beginSweepToSeedWallet, ["ANY_TADDR","ANY_ZADDR"], amounts, fee, recipient,
memo) and beginAdoptSeedWallet's disconnect/vault-removal/stop/rescan/restart logic are unchanged; only the
adopt gating, two new read-only RPCs, presentation, and the file-move safety change. Pure tests:
sweepConfsAreReorgSafe + adoptReverifyPasses.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
DanSandClaude Opus 4.8
0cb1df3bfe