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FILTER_S_NO_SECURITY_DESCRIPTOR
Document has no security descriptor available to the filter
FILTER_S_NO_SECURITY_DESCRIPTOR is HRESULT 268092 (0x0004173C) from Indexing Service. AllStat describes it as “The document has no security descriptor.” The severity bit indicates a nonfailure result, but the value carries a specific condition that must not be collapsed into plain S_OK.
In the legacy Indexing Service or IFilter pipeline, this result means that the document has no security descriptor. Handling of it is complete only after the caller verifies what work occurred and what remains outstanding.
Where the status is encountered
- Legacy Indexing Service catalog processing; log the exact method and object state instead of interpreting the constant outside that contract.
- IFilter text and property extraction; log the exact method and object state instead of interpreting the constant outside that contract.
- Search enumeration, scan scheduling, or catalog administration; log the exact method and object state instead of interpreting the constant outside that contract.
Because it is informational, a language binding may expose it as success and hide the symbolic distinction. Keep the original HRESULT available until the code-specific branch has run.
What must be true before accepting it
Verify that the indexing system applies a safe visibility policy instead of assuming unrestricted access. Failure to prove the boundary can make it look healthy while the intended operation remains unfinished.
Classify the operation phase reached at it before releasing objects or issuing replacement work.
Evidence and telemetry
- preserve document and repository identity.
- preserve filter security output.
- preserve fallback ACL source.
- preserve effective indexed permissions.
- preserve policy decision for missing authorization.
Also record filter_s_no_security_descriptor_operation, filter_s_no_security_descriptor_state_before, filter_s_no_security_descriptor_state_after, UTC time, process and thread identifiers, component version, and a correlation ID. Keep it traces useful by recording object identity and timing while excluding authentication or content secrets.
Difference from nearby results
It must be distinguished from ordinary S_OK and from failure-severity values in the same API family; its documented state changes control the next action.
The semantic difference represented by it should be visible in both control flow and operational metrics.
Correct handling and recovery
Use the repository or file-system ACL when available. If no authoritative security source exists, quarantine or exclude the item according to policy rather than indexing it for every user.
Retry it only when a documented input or state has changed. Only a meaningful state transition should cause a repeated request after it.
Practical scenario
A custom repository filter cannot return an item ACL. The connector retrieves authorization from the repository API before publishing the document to searchable scopes.
A regression test should reproduce it, assert the relevant outputs and state, then change only the decisive condition and verify the expected neighboring result or ordinary completion.
References
- Microsoft: Filter interface values — official Microsoft material used to interpret it.
- Microsoft: About Indexing Service filters
- Microsoft: Using custom filters
- Microsoft: HRESULT values
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