scottp
b390c0d579
- Extract all decode/decrypt into a dependency-free C99 core
(include/victronble.h, src/victronble_core.c): victronble_decode(),
is_product_adv/key_matches pre-filters, NAN sentinels, LE accessors.
- AES-128-CTR behind a hook: weak-symbol bundled tiny-AES default,
runtime override (victronble_set_aes_ctr) for PSA/mbedTLS/hardware.
- Arduino VictronBLE class becomes a thin wrapper over the core
(registry + nonce dedup + rate limit); public C++ API unchanged,
NAN converted back to the legacy 0 convention.
- Host test vectors (tests/vectors): openssl-generated ciphertext,
independent of the bundled AES; all five payload shapes + negatives.
- Zephyr module: zephyr/module.yml + Kconfig (CONFIG_VICTRONBLE) +
observer backend (victronble_zephyr.{h,c}) — scan cb pre-filters and
queues, dedicated decode thread, listener callbacks, slow passive
scan defaults, stats counters. docs/ZEPHYR_PORT.md records the plan.
- library.properties: fix URL (gitea, not the nonexistent GitHub).
74 lines
2.1 KiB
Plaintext
74 lines
2.1 KiB
Plaintext
menuconfig VICTRONBLE
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bool "Victron Instant Readout BLE observer"
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depends on BT_OBSERVER
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help
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Passive BLE observer for Victron Energy devices broadcasting
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Instant Readout advertisements (manufacturer ID 0x02E1,
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AES-128-CTR encrypted). No connection or pairing required.
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The application must call bt_enable() before victronble_start().
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if VICTRONBLE
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config VICTRONBLE_MAX_DEVICES
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int "Maximum monitored devices"
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default 4
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config VICTRONBLE_QUEUE_DEPTH
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int "Advertisement queue depth"
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default 8
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help
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Frames are copied off the BT RX thread into this queue and decoded
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by a dedicated thread. A full queue drops the newest frame and
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counts the drop (see victronble_get_stats()).
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config VICTRONBLE_THREAD_STACK_SIZE
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int "Decode thread stack size"
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default 2048
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config VICTRONBLE_THREAD_PRIORITY
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int "Decode thread priority (preemptible)"
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default 10
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config VICTRONBLE_DEDUP
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bool "Drop repeated advertisements by nonce counter"
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default y
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help
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Each advertisement is broadcast repeatedly on three channels.
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Tracking the last nonce per device suppresses duplicates so the
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record callback only fires when the device published new data.
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config VICTRONBLE_SCAN_INTERVAL
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int "Scan interval (0.625 ms units)"
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default 2048
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help
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Default 2048 = 1.28 s (BT_GAP_SCAN_SLOW_INTERVAL_1). Victron
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devices advertise roughly once per second, so a low duty cycle
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catches records at a fraction of the radio-on time.
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config VICTRONBLE_SCAN_WINDOW
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int "Scan window (0.625 ms units)"
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default 18
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help
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Default 18 = 11.25 ms (BT_GAP_SCAN_SLOW_WINDOW_1). Raise toward
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the interval for faster acquisition at higher power draw.
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choice VICTRONBLE_CRYPTO
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prompt "AES-CTR backend"
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default VICTRONBLE_CRYPTO_SOFTWARE
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config VICTRONBLE_CRYPTO_SOFTWARE
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bool "Bundled software AES-128"
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help
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The library's dependency-free tiny-AES CTR implementation. An
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external backend can instead provide a strong
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victronble_aes_ctr_default() (weak symbol) or register one at
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runtime with victronble_set_aes_ctr().
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endchoice
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module = VICTRONBLE
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module-str = victronble
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source "subsys/logging/Kconfig.template.log_config"
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endif # VICTRONBLE
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