fix: stewardship re-upload dispersed replicas - #5594
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aloknerurkar wants to merge 2 commits into
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aloknerurkar
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acud,
akrem-chabchoub,
gacevicljubisa and
sbackend123
September 3, 2026 05:06
gacevicljubisa
requested changes
Sep 3, 2026
- Trim encrypted references to the 32-byte content address before deriving dispersed replica addresses; replicas are keyed on the plain content address, and root can be a 64-byte encrypted reference (address + decryption key). - Validate the fetched root chunk is a valid content-addressed chunk before deriving replicas from it. - Stamp each dispersed replica individually against its own SOC address as it is put, instead of stamping the root chunk once and reusing that stamp across all replicas (which have different addresses and would fail stamp validation on the receiving side). - Add TestStewardEncryptedReference covering both fixes, with a strict-address chunk store and a stamp-recording stamper to ensure both regressions are actually caught.
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Checklist
Description
PUT /stewardship/{reference} with a non-zero Swarm-Redundancy-Level re-uploads all BMT trie chunks (data + RS parity) but never re-creates the root chunk's dispersed replicas — the SOC-wrapped copies spread across neighborhoods for retrieval resilience. traversal.Traverse only walks the trie; replicas are created separately by replicas.NewPutter at original upload time and are invisible to traversal.
Fix: after traversal succeeds, if rLevel != redundancy.NONE, fetch the root chunk (already local from traversal), re-stamp it, and push it through replicas.NewPutter(uploaderSession, rLevel) before calling uploaderSession.Done(root) — mirroring what the original upload path does.
Changes
Testing
Related Issue (Optional)
Fixes #5450
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