46 lines
2.6 KiB
Markdown
46 lines
2.6 KiB
Markdown
# GREE Controller v0.3.6 - build and validation report
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## Scope
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Version 0.3.6 fixes real-device binding failures observed on a mixed five-unit GREE network in a multi-NIC LXC.
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### Protocol fixes
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- GREE AES-GCM decoding now accepts non-canonical Base64 trailing bits and optional padding. This matches the forgiving decoding behavior used by established Python GREE implementations and fixes `Invalid last symbol ... offset 21` errors from real Wi-Fi modules.
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- GCM decrypted payloads discard `0xff` filler bytes used by some modules.
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- ECB decoding keeps normal PKCS#7 validation but has a compatibility fallback that trims decrypted data at the last JSON `}` when a legacy module returns non-standard padding.
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- Bind waits ignore late discovery packets instead of accidentally treating a `dev` packet as the bind result.
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- Before each bind, the controller refreshes the short GREE bind window with a subnet broadcast scan when the device is on a directly connected IPv4 network. The same UDP socket is then used immediately for the bind request.
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- ECB/GCM fallback remains enabled and successful binding persists the detected protocol and device key.
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### Multi-NIC behavior
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- If `GREE_CONTROLLER_GREE_INTERFACE` is configured, all GREE UDP sockets are bound to the current IPv4 address of that interface.
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- If no GREE interface is configured, the controller now automatically selects the local IPv4 address whose subnet contains the target GREE device. For the reported LXC this resolves `10.87.65.x` traffic to the `10.87.65.27/25` interface instead of leaving the socket bound to `0.0.0.0`.
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- The automatically selected subnet broadcast is also used to refresh the bind window (for example `10.87.65.127:7000`).
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## Validation performed
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| Check | Result |
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|---|---|
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| JavaScript syntax (`node --check web/app.js`) | PASS |
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| EN/PL JSON parsing | PASS |
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| Shell syntax (`bash -n scripts/*.sh`) | PASS |
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| Python syntax for scripts and HA integration | PASS |
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| SQL remains centralized in `src/queries.rs` | PASS |
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| No operator `.sh`/`.py` scripts in the project root | PASS |
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| Package naming remains `gree_controller` / `GREE_CONTROLLER_*` | PASS |
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| ZIP integrity | performed during release packaging |
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The packaging environment does not contain the Rust toolchain, so the final Rust type-check, tests and optimized build are intentionally performed by `scripts/update.sh` on the target LXC before the installed binary is replaced.
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## Recommended LXC test
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```bash
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sudo ./scripts/update.sh
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sudo ./scripts/configure-gree-network.sh eth1
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journalctl -u gree-controller -f
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```
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Expected request logs should show a concrete local address such as `10.87.65.27:<port>` rather than `0.0.0.0:<port>`.
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