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).
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/**
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* victronble — Zephyr BLE observer API.
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*
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* Passive-scans for Victron Instant Readout advertisements, decodes them
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* off the BT RX thread (frames are queued to a dedicated decode thread)
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* and delivers records to registered listeners.
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*
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* The application owns the Bluetooth stack: call bt_enable() before
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* victronble_start(). Enable with CONFIG_VICTRONBLE=y (needs
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* CONFIG_BT_OBSERVER=y).
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*
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* Copyright (c) 2026 Scott Penrose
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* License: MIT
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*/
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#ifndef VICTRONBLE_ZEPHYR_H
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#define VICTRONBLE_ZEPHYR_H
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#include <zephyr/bluetooth/addr.h>
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#include <zephyr/sys/slist.h>
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#include "victronble.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Listener; register with victronble_cb_register(). Callbacks run on the
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* module's decode thread. */
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struct victronble_cb {
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/** A monitored device published a new record. */
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void (*record)(const bt_addr_le_t *addr, int8_t rssi,
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const victronble_record_t *rec);
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/** Optional: a monitored device's advertisement failed to decode. */
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void (*decode_error)(const bt_addr_le_t *addr, victronble_err_t err);
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sys_snode_t node;
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};
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struct victronble_stats {
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uint32_t adverts; /* Victron product adverts seen (any device) */
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uint32_t queued; /* frames queued for a monitored device */
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uint32_t dropped; /* frames lost to a full queue */
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uint32_t decoded; /* records decoded OK */
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uint32_t duplicates; /* suppressed by nonce dedup */
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uint32_t errors; /* decode failures */
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};
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/** Register a listener. Returns -EALREADY if already registered. */
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int victronble_cb_register(struct victronble_cb *cb);
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/** Monitor a device. @p key is its 16-byte advertisement key (VictronConnect
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* → Product Info). Returns -ENOMEM when full, -EALREADY if present. */
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int victronble_device_add(const bt_addr_le_t *addr,
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const uint8_t key[VICTRONBLE_KEY_LEN]);
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/** Stop monitoring a device. Returns -ENOENT if unknown. */
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int victronble_device_remove(const bt_addr_le_t *addr);
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/** Start the passive scan (bt_enable() must have succeeded first). */
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int victronble_start(void);
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/** Stop the scan. Queued frames still drain to callbacks. */
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int victronble_stop(void);
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void victronble_get_stats(struct victronble_stats *out);
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#ifdef __cplusplus
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}
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#endif
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#endif /* VICTRONBLE_ZEPHYR_H */
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