86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/**
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* @file esp_stubs.c
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* @brief Implementation of ESP-IDF stubs for host-based fuzz testing.
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*
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* Must be compiled with: -Istubs -I../main
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* so that ESP-IDF headers resolve to stubs/ and firmware headers
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* resolve to ../main/.
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*/
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#include "esp_stubs.h"
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#include "edge_processing.h"
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#include "wasm_runtime.h"
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#include <stdint.h>
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/** Monotonically increasing microsecond counter for esp_timer_get_time(). */
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static int64_t s_fake_time_us = 0;
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int64_t esp_timer_get_time(void)
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{
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/* Advance by 50ms each call (~20 Hz CSI rate simulation). */
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s_fake_time_us += 50000;
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return s_fake_time_us;
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}
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/* ---- stream_sender stubs ---- */
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int stream_sender_send(const uint8_t *data, size_t len)
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{
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(void)data;
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return (int)len;
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}
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int stream_sender_init(void)
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{
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return 0;
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}
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int stream_sender_init_with(const char *ip, uint16_t port)
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{
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(void)ip; (void)port;
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return 0;
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}
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void stream_sender_deinit(void)
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{
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}
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/* ---- wasm_runtime stubs ---- */
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void wasm_runtime_on_frame(const float *phases, const float *amplitudes,
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const float *variances, uint16_t n_sc,
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const edge_vitals_pkt_t *vitals)
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{
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(void)phases; (void)amplitudes; (void)variances;
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(void)n_sc; (void)vitals;
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}
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esp_err_t wasm_runtime_init(void) { return ESP_OK; }
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esp_err_t wasm_runtime_load(const uint8_t *d, uint32_t l, uint8_t *id) { (void)d; (void)l; (void)id; return ESP_OK; }
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esp_err_t wasm_runtime_start(uint8_t id) { (void)id; return ESP_OK; }
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esp_err_t wasm_runtime_stop(uint8_t id) { (void)id; return ESP_OK; }
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esp_err_t wasm_runtime_unload(uint8_t id) { (void)id; return ESP_OK; }
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void wasm_runtime_on_timer(void) {}
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void wasm_runtime_get_info(wasm_module_info_t *info, uint8_t *count) { (void)info; if(count) *count = 0; }
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esp_err_t wasm_runtime_set_manifest(uint8_t id, const char *n, uint32_t c, uint32_t m) { (void)id; (void)n; (void)c; (void)m; return ESP_OK; }
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/* ---- mmwave_sensor stubs (ADR-063) ---- */
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#include "mmwave_sensor.h"
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static mmwave_state_t s_stub_mmwave = {0};
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esp_err_t mmwave_sensor_init(int tx, int rx) { (void)tx; (void)rx; return ESP_ERR_NOT_FOUND; }
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bool mmwave_sensor_get_state(mmwave_state_t *s) { if (s) *s = s_stub_mmwave; return false; }
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const char *mmwave_type_name(mmwave_type_t t) { (void)t; return "None"; }
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/* ADR-110 iter 38 — fuzz-harness stub for c6_sync_espnow_is_valid.
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* Real implementation lives in main/c6_sync_espnow.c; the fuzz target
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* (`fuzz_serialize`) only links csi_collector.c against esp_stubs.c, so
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* iter-11's `if (c6_sync_espnow_is_valid()) flags |= (1 << 4);` needs a
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* symbol here or `clang -fsanitize=fuzzer` fails with an undefined-reference
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* linker error. Returning false means the bit-4 cross-node-sync-valid flag
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* stays 0 in fuzz inputs, which is the natural fuzz semantic. */
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#include <stdbool.h>
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bool c6_sync_espnow_is_valid(void) { return false; }
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