LAN gateway: fix case-sensitive serial mismatch between connection and status - #17
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📝 WalkthroughWalkthrough
ChangesConfigured serial handling
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🔵 Low · up to The change aligns LAN gateway connection and WebUI status handling around the configured serial, preventing mismatched status files. A bounded edge case remains when no serial is configured, where status updates could target /var/status/.connstat; owner follow-up is advisable before merge. Sequence Diagram(s)sequenceDiagram
participant LGWPortWrapper
participant UnifiedLanCommController
participant Gateway
LGWPortWrapper->>UnifiedLanCommController: Set configuredSerial
UnifiedLanCommController->>Gateway: Receive HELLO
UnifiedLanCommController->>UnifiedLanCommController: Compare configured and reported serials
UnifiedLanCommController-->>LGWPortWrapper: Accept or reject gateway
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 1
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Inline comments:
In `@src/rfd/hm2/LGWPortWrapper.cpp`:
- Around line 188-189: Update the keep-alive setup so pThis->configuredSerial is
assigned before keepAliveConnection.connect() invokes
UnifiedLanCommController::connect(). Ensure the keep-alive controller receives
this configured serial and handleHelloMessage() enforces the same gateway
identity check as the primary channel.
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src/libUnifiedLanComm/include/UnifiedLanCommController.hsrc/rfd/hm2/LGWPortWrapper.cppsrc/rfd/hm2/LGWPortWrapper.h
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Actionable comments posted: 1
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Inline comments:
In `@src/libUnifiedLanComm/src/UnifiedLanCommController.cpp`:
- Line 295: Update LGWPortWrapper::connect and every reconnect path to call
UnifiedLanCommController::setDesiredSerial with the configured desiredSerial
before connecting. In UnifiedLanCommController’s HELLO validation, reject
messages with a missing serial whenever a desired serial is configured, while
preserving case-insensitive matching for valid serials.
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Inline comments:
In `@src/libUnifiedLanComm/src/UnifiedLanCommController.cpp`:
- Around line 279-280: Ensure lgwSerial is cleared at the start of each new
connection or before the serial-less HELLO branch in UnifiedLanCommController,
including when desiredSerial is empty and getMessageParameterCount() is below
four. Preserve existing HELLO acceptance while preventing a reused controller
from retaining the previous connection’s serial for getSerial().
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Inline comments:
In `@src/rfd/hm2/LGWPortWrapper.cpp`:
- Line 247: The status-file update around configuredSerial must never write with
an empty serial. In CCU2BidcosRemoteInterface::InitHMLGWPortCommController and
the connect, disconnect, and reconnect paths, prefer the reported serial when
available; when both reported and configured serial values are empty, skip
writeLGWStatusToFile instead of constructing a .connstat path.
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src/libUnifiedLanComm/include/UnifiedLanCommController.hsrc/libUnifiedLanComm/src/UnifiedLanCommController.cppsrc/rfd/hm2/LGWPortWrapper.cppsrc/rfd/hm2/LGWPortWrapper.h
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2 participants
OpenCCU handles LAN gateway serial numbers inconsistently between the rfd connection layer and the WebUI status-file layer.
In the reproduced case, the configured serial was
CCU2GWBUEGwhile the gateway reportedCCU2GWBueg. rfd accepted the connection, but the WebUI read/var/status/CCU2GWBUEG.connstatwhile rfd wrote/var/status/CCU2GWBueg.connstat.This patch uses the configured serial consistently for connection validation, reconnect handling and status files.
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