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Jul 19, 2026
#108) * fix(ble): defer NimBLE onConnect/onDisconnect work to loop() (race audit #1-3,6) The Bluedroid->NimBLE migration left heavyweight, state-mutating work running inline inside the ESP32 server callbacks on the NimBLE host task, racing the Arduino loop() task. Make the callbacks flag-only and service the flags from loop(), mirroring the existing bleRestartAdvertisingPending pattern. - onDisconnect: EPD session teardown (bbepSleep/delay/SPI.end + rail cut), partial + pipe cleanup, and resetPipeWriteState() ran on the host task while loop() streamed SPI via bbepWriteData and processed pipe frames. The only guard (epdRefreshInProgress) covered the refresh phase, not streaming. Now sets bleDisconnectCleanupPending; serviced by serviceBleDisconnectCleanup() in loop() (preserving the epdRefreshInProgress deferral), run before the advertising restart. (#1 critical, #2 high, #6 medium) - onConnect: updatemsdata() polled I2C and mutated the shared advertisement vector that loop() also drives on its 60s cadence -> heap corruption. Now sets msdUpdatePending; loop() calls updatemsdata(). (#3 high) - updatemsdata(): drop the connected-branch that rebuilt *advertisementData but never pushed it via setAdvertisementData() -- dead work, no behavior change. All ESP32-guarded; nRF/Bluefruit path untouched. Builds clean on esp32-s3-N16R8, esp32-c3-N16, nrf52840custom. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * Replace protocol magic numbers with canonical named constants Follow-up to the header vendoring (3f09f6d): sweep the remaining hand-coded protocol literals across the BLE command handlers and use the constants from the vendored opendisplay_protocol.h. Value-for-value, no wire-behavior change; all CI envs build clean. - encryption.cpp: auth-status frames -> RESP_ACK/RESP_AUTHENTICATE + AUTH_STATUS_*; CCM envelope sizes -> BLE_CMD_HEADER_SIZE/ ENCRYPTION_NONCE_SIZE/ENCRYPTION_TAG_SIZE (handshake nonces left as-is). - communication.cpp: handler response codes -> RESP_* (incl. RESP_AUTH_REQUIRED); config limits -> CONFIG_CHUNK_SIZE*/ MAX_CONFIG_CHUNKS/MAX_RESPONSE_DATA_SIZE; envelope sizes. - device_control.cpp / buzzer_control.cpp: LED, deep-sleep, and buzzer ack/nack frames -> RESP_*. - display_service.cpp: direct-write/refresh frames -> RESP_DIRECT_WRITE_*; pipe-start errors -> OD_ERR_PIPE_START_*; deleted the local ERR_* shadow copies of OD_ERR_PARTIAL_* in favor of the canonical names. Pipe/partial-write opcode-echo bytes (0x76/0x80/0x81/0x82), the pipe data-phase error codes, and the START response-flags bit stay raw with TODO(protocol) markers: the canonical header defines no RESP_* mirror or data-phase error namespace for them yet. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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