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Add IGCL power telemetry V2 support - #697
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🔵 Needs a closer look
Runtime compatibility and telemetry ABI behavior require validation against both old and new IGCL DLLs.
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What changed in this PR
Adds IGCL V2 power telemetry support while preserving legacy runtime compatibility and existing metric handling.
Changes:
- Adds V2 telemetry polling with legacy fallback.
- Normalizes V2 responses into the existing telemetry format.
- Updates bundled IGCL declarations and wrappers.
| File | Description |
|---|---|
IgclTelemetryProvider.h |
Adds V2 state and normalization declaration. |
IgclTelemetryProvider.cpp |
Implements V2 polling, normalization, and fallback. |
igcl_api.h |
Adds updated IGCL API types and declarations. |
cApiWrapper.cpp |
Adds dynamic wrappers for updated IGCL endpoints. |
🧠 Review effort: Balanced
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markgalvan-intel
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Oct 9, 2026
Brings in #692 (CETCOMPAT), #694 (service unavailable crash), #696 (SCM auto-healing), #697 (IGCL ctlPowerTelemetryGetV2) and #698 (action pipe hardening). #698 was written against the two-pipe transport that this branch replaces, so its changes are carried over by intent: - Service control pipe DACL (SY full, AU connect mask only): kept, with the mandatory label raised from LW to ME so processes below medium integrity cannot connect. AU in the DACL does not imply an integrity level. - Exact client connect access mask: kept unchanged. - Private control pipe DACL and --control-pipe-allow-au-clients: kept. - Shared service identity verification in the middleware: kept. ResolveConnectedServerProcessId reads the single pipe instead of comparing two legs; the middleware uses the client's existing SessionConnector_. The middleware contexts move to MiddlewareExecutionContext.h with this branch's remotePid-only session context. - Accept loop robustness: this branch already replaces a listener after every accept. Ported the retry: a listener that cannot be created, or that fails to accept for a reason other than a vanished client, is replaced after 200 ms instead of shrinking the pool or spinning the io thread. - Removed the SecurityMode::Service and SecurityMode::Child strings, which no longer have users. - Fixed helpers that auto-merged into SymmetricActionClient.h referring to members of the old client.
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Update the bundled IGCL API files to expose ctlPowerTelemetryGetV2. Prefer the V2 telemetry endpoint when available and fall back to the legacy endpoint when using an older IGCL runtime. Normalize V2 responses into the existing telemetry representation to preserve metric handling.