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Add device unique id (#5092)

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* Add device unique id

* Trunk

* WIP

* Esp32 implementation

* Trunk

* Check for ESP_EFUSE_OPTIONAL_UNIQUE_ID

* Comment print

* Trunk
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Ben Meadors 2024-10-23 21:18:37 -05:00 committed by GitHub
parent 57667f1028
commit ca5f71f774
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1 changed files with 41 additions and 0 deletions
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41
src/mesh/NodeDB.cpp
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@ -34,7 +34,11 @@
#endif
#include "modules/StoreForwardModule.h"
#include <Preferences.h>
#include <esp_efuse.h>
#include <esp_efuse_table.h>
#include <nvs_flash.h>
#include <soc/efuse_reg.h>
#include <soc/soc.h>
#endif
#ifdef ARCH_PORTDUINO
@ -109,6 +113,43 @@ NodeDB::NodeDB()
uint32_t channelFileCRC = crc32Buffer(&channelFile, sizeof(channelFile));
int saveWhat = 0;
bool hasUniqueId = false;
// Get device unique id
#if defined(ARCH_ESP32) && defined(ESP_EFUSE_OPTIONAL_UNIQUE_ID)
uint32_t unique_id[4];
// ESP32 factory burns a unique id in efuse for S2+ series and evidently C3+ series
// This is used for HMACs in the esp-rainmaker AIOT platform and seems to be a good choice for us
esp_err_t err = esp_efuse_read_field_blob(ESP_EFUSE_OPTIONAL_UNIQUE_ID, unique_id, sizeof(unique_id) * 8);
if (err == ESP_OK) {
memcpy(myNodeInfo.device_id.bytes, unique_id, sizeof(unique_id));
myNodeInfo.device_id.size = 16;
hasUniqueId = true;
} else {
LOG_WARN("Failed to read unique id from efuse");
}
#elif defined(ARCH_NRF52)
// Nordic applies a FIPS compliant Random ID to each chip at the factory
// We concatenate the device address to the Random ID to create a unique ID for now
// This will likely utilize a crypto module in the future
uint64_t device_id_start = ((uint64_t)NRF_FICR->DEVICEID[1] << 32) | NRF_FICR->DEVICEID[0];
uint64_t device_id_end = ((uint64_t)NRF_FICR->DEVICEADDR[1] << 32) | NRF_FICR->DEVICEADDR[0];
memcpy(myNodeInfo.device_id.bytes, &device_id_start, sizeof(device_id_start));
memcpy(myNodeInfo.device_id.bytes + sizeof(device_id_start), &device_id_end, sizeof(device_id_end));
myNodeInfo.device_id.size = 16;
hasUniqueId = true;
#else
// FIXME - implement for other platforms
#endif
// Uncomment below to print the device id
// if (hasUniqueId) {
// std::string deviceIdHex;
// for (size_t i = 0; i < myNodeInfo.device_id.size; ++i) {
// char buf[3];
// snprintf(buf, sizeof(buf), "%02X", myNodeInfo.device_id.bytes[i]);
// deviceIdHex += buf;
// }
// LOG_DEBUG("Device ID (HEX): %s", deviceIdHex.c_str());
// }
// likewise - we always want the app requirements to come from the running appload
myNodeInfo.min_app_version = 30200; // format is Mmmss (where M is 1+the numeric major number. i.e. 30200 means 2.2.00