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Merge branch 'dev' into reciprocal-path-retry

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Scott Powell 2025-09-13 18:48:24 +10:00
commit c69d78b62e
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38
boards/nrf52840_s140_v6_extrafs.ld Normal file
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@ -0,0 +1,38 @@
/* Linker script to configure memory regions. */
SEARCH_DIR(.)
GROUP(-lgcc -lc -lnosys)
MEMORY
{
FLASH (rx) : ORIGIN = 0x26000, LENGTH = 0xD4000 - 0x26000
/* SRAM required by Softdevice depend on
* - Attribute Table Size (Number of Services and Characteristics)
* - Vendor UUID count
* - Max ATT MTU
* - Concurrent connection peripheral + central + secure links
* - Event Len, HVN queue, Write CMD queue
*/
RAM (rwx) : ORIGIN = 0x20006000, LENGTH = 0x20040000 - 0x20006000
}
SECTIONS
{
. = ALIGN(4);
.svc_data :
{
PROVIDE(__start_svc_data = .);
KEEP(*(.svc_data))
PROVIDE(__stop_svc_data = .);
} > RAM
.fs_data :
{
PROVIDE(__start_fs_data = .);
KEEP(*(.fs_data))
PROVIDE(__stop_fs_data = .);
} > RAM
} INSERT AFTER .data;
INCLUDE "nrf52_common.ld"

38
boards/nrf52840_s140_v7_extrafs.ld Normal file
View file

@ -0,0 +1,38 @@
/* Linker script to configure memory regions. */
SEARCH_DIR(.)
GROUP(-lgcc -lc -lnosys)
MEMORY
{
FLASH (rx) : ORIGIN = 0x27000, LENGTH = 0xD4000 - 0x27000
/* SRAM required by Softdevice depend on
* - Attribute Table Size (Number of Services and Characteristics)
* - Vendor UUID count
* - Max ATT MTU
* - Concurrent connection peripheral + central + secure links
* - Event Len, HVN queue, Write CMD queue
*/
RAM (rwx) : ORIGIN = 0x20006000, LENGTH = 0x20040000 - 0x20006000
}
SECTIONS
{
. = ALIGN(4);
.svc_data :
{
PROVIDE(__start_svc_data = .);
KEEP(*(.svc_data))
PROVIDE(__stop_svc_data = .);
} > RAM
.fs_data :
{
PROVIDE(__start_fs_data = .);
KEEP(*(.fs_data))
PROVIDE(__stop_fs_data = .);
} > RAM
} INSERT AFTER .data;
INCLUDE "nrf52_common.ld"

22
docs/faq.md
View file

@ -63,10 +63,11 @@ author: https://github.com/LitBomb<!-- omit from toc -->
- [6.1. Q: My client says another client or a repeater or a room server was last seen many, many days ago.](#61-q-my-client-says-another-client-or-a-repeater-or-a-room-server-was-last-seen-many-many-days-ago)
- [6.2. Q: A repeater or a client or a room server I expect to see on my discover list (on T-Deck) or contact list (on a smart device client) are not listed.](#62-q-a-repeater-or-a-client-or-a-room-server-i-expect-to-see-on-my-discover-list-on-t-deck-or-contact-list-on-a-smart-device-client-are-not-listed)
- [6.3. Q: How to connect to a repeater via BLE (Bluetooth)?](#63-q-how-to-connect-to-a-repeater-via-ble-bluetooth)
- [6.4. Q: I can't connect via Bluetooth, what is the Bluetooth pairing code?](#64-q-i-cant-connect-via-bluetooth-what-is-the-bluetooth-pairing-code)
- [6.5. Q: My Heltec V3 keeps disconnecting from my smartphone. It can't hold a solid Bluetooth connection.](#65-q-my-heltec-v3-keeps-disconnecting-from-my-smartphone--it-cant-hold-a-solid-bluetooth-connection)
- [6.6. Q: My RAK/T1000-E/xiao\_nRF52 device seems to be corrupted, how do I wipe it clean to start fresh?](#66-q-my-rakt1000-exiao_nrf52-device-seems-to-be-corrupted-how-do-i-wipe-it-clean-to-start-fresh)
- [6.7. Q: WebFlasher fails on Linux with failed to open](#67-q-webflasher-fails-on-linux-with-failed-to-open)
- [6.4. Q: My companion isn't showing up over Bluetooth?](#64-q-my-companion-isnt-showing-up-over-bluetooth)
- [6.5. Q: I can't connect via Bluetooth, what is the Bluetooth pairing code?](#64-q-i-cant-connect-via-bluetooth-what-is-the-bluetooth-pairing-code)
- [6.6. Q: My Heltec V3 keeps disconnecting from my smartphone. It can't hold a solid Bluetooth connection.](#65-q-my-heltec-v3-keeps-disconnecting-from-my-smartphone--it-cant-hold-a-solid-bluetooth-connection)
- [6.7. Q: My RAK/T1000-E/xiao\_nRF52 device seems to be corrupted, how do I wipe it clean to start fresh?](#66-q-my-rakt1000-exiao_nrf52-device-seems-to-be-corrupted-how-do-i-wipe-it-clean-to-start-fresh)
- [6.8. Q: WebFlasher fails on Linux with failed to open](#67-q-webflasher-fails-on-linux-with-failed-to-open)
- [7. Other Questions:](#7-other-questions)
- [7.1 Q: How to update nRF (RAK, T114, Seed XIAO) repeater and room server firmware over the air using the new simpler DFU app?](#71-q-how-to-update-nrf-rak-t114-seed-xiao-repeater-and-room-server-firmware-over-the-air-using-the-new-simpler-dfu-app)
- [7.2 Q: How to update ESP32-based devices over the air?](#72-q-how-to-update-esp32-based-devices-over-the-air)
@ -563,15 +564,19 @@ You can get the epoch time on <https://www.epochconverter.com/> and use it to se
### 6.3. Q: How to connect to a repeater via BLE (Bluetooth)?
**A:** You can't connect to a device running repeater firmware via Bluetooth. Devices running the BLE companion firmware you can connect to it via Bluetooth using the android app
### 6.4. Q: I can't connect via Bluetooth, what is the Bluetooth pairing code?
### 6.4. Q: My companion isn't showing up over Bluetooth?
**A:** make sure that you flashed the Bluetooth companion firmware and not the USB-only companion firmware.
### 6.5. Q: I can't connect via Bluetooth, what is the Bluetooth pairing code?
**A:** the default Bluetooth pairing code is `123456`
### 6.5. Q: My Heltec V3 keeps disconnecting from my smartphone. It can't hold a solid Bluetooth connection.
### 6.6. Q: My Heltec V3 keeps disconnecting from my smartphone. It can't hold a solid Bluetooth connection.
**A:** Heltec V3 has a very small coil antenna on its PCB for Wi-Fi and Bluetooth connectivity. It has a very short range, only a few feet. It is possible to remove the coil antenna and replace it with a 31mm wire. The BT range is much improved with the modification.
### 6.6. Q: My RAK/T1000-E/xiao_nRF52 device seems to be corrupted, how do I wipe it clean to start fresh?
### 6.7. Q: My RAK/T1000-E/xiao_nRF52 device seems to be corrupted, how do I wipe it clean to start fresh?
**A:**
1. Connect USB-C cable to your device, per your device's instruction, get it to flash mode:
@ -591,8 +596,7 @@ You can get the epoch time on <https://www.epochconverter.com/> and use it to se
Separately, starting in firmware version 1.7.0, there is a CLI Rescue mode. If your device has a user button (e.g. some RAK, T114), you can activate the rescue mode by hold down the user button of the device within 8 seconds of boot. Then you can use the 'Console' on flasher.meshcore.co.uk
### 6.7. Q: WebFlasher fails on Linux with failed to open
### 6.8. Q: WebFlasher fails on Linux with failed to open
**A:** If the usb port doesn't have the right ownership for this task, the process fails with the following error:
`NetworkError: Failed to execute 'open' on 'SerialPort': Failed to open serial port.`

112
examples/companion_radio/ui-new/UITask.cpp
View file

@ -75,6 +75,9 @@ class HomeScreen : public UIScreen {
RADIO,
BLUETOOTH,
ADVERT,
#if UI_SENSORS_PAGE == 1
SENSORS,
#endif
SHUTDOWN,
Count // keep as last
};
@ -113,9 +116,37 @@ class HomeScreen : public UIScreen {
display.fillRect(iconX + 2, iconY + 2, fillWidth, iconHeight - 4);
}
CayenneLPP sensors_lpp;
int sensors_nb = 0;
bool sensors_scroll = false;
int sensors_scroll_offset = 0;
int next_sensors_refresh = 0;
void refresh_sensors() {
if (millis() > next_sensors_refresh) {
sensors_lpp.reset();
sensors_nb = 0;
sensors_lpp.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
sensors.querySensors(0xFF, sensors_lpp);
LPPReader reader (sensors_lpp.getBuffer(), sensors_lpp.getSize());
uint8_t channel, type;
while(reader.readHeader(channel, type)) {
reader.skipData(type);
sensors_nb ++;
}
sensors_scroll = sensors_nb > UI_RECENT_LIST_SIZE;
#if AUTO_OFF_MILLIS > 0
next_sensors_refresh = millis() + 5000; // refresh sensor values every 5 sec
#else
next_sensors_refresh = millis() + 60000; // refresh sensor values every 1 min
#endif
}
}
public:
HomeScreen(UITask* task, mesh::RTCClock* rtc, SensorManager* sensors, NodePrefs* node_prefs)
: _task(task), _rtc(rtc), _sensors(sensors), _node_prefs(node_prefs), _page(0), _shutdown_init(false) { }
: _task(task), _rtc(rtc), _sensors(sensors), _node_prefs(node_prefs), _page(0),
_shutdown_init(false), sensors_lpp(200) { }
void poll() override {
if (_shutdown_init && !_task->isButtonPressed()) { // must wait for USR button to be released
@ -211,6 +242,78 @@ public:
display.setColor(DisplayDriver::GREEN);
display.drawXbm((display.width() - 32) / 2, 18, advert_icon, 32, 32);
display.drawTextCentered(display.width() / 2, 64 - 11, "advert: " PRESS_LABEL);
#if UI_SENSORS_PAGE == 1
} else if (_page == HomePage::SENSORS) {
int y = 18;
refresh_sensors();
char buf[30];
char name[30];
LPPReader r(sensors_lpp.getBuffer(), sensors_lpp.getSize());
for (int i = 0; i < sensors_scroll_offset; i++) {
uint8_t channel, type;
r.readHeader(channel, type);
r.skipData(type);
}
for (int i = 0; i < (sensors_scroll?UI_RECENT_LIST_SIZE:sensors_nb); i++) {
uint8_t channel, type;
if (!r.readHeader(channel, type)) { // reached end, reset
r.reset();
r.readHeader(channel, type);
}
display.setCursor(0, y);
float v;
switch (type) {
case LPP_GPS: // GPS
float lat, lon, alt;
r.readGPS(lat, lon, alt);
strcpy(name, "gps"); sprintf(buf, "%.4f %.4f", lat, lon);
break;
case LPP_VOLTAGE:
r.readVoltage(v);
strcpy(name, "voltage"); sprintf(buf, "%6.2f", v);
break;
case LPP_CURRENT:
r.readCurrent(v);
strcpy(name, "current"); sprintf(buf, "%.3f", v);
break;
case LPP_TEMPERATURE:
r.readTemperature(v);
strcpy(name, "temperature"); sprintf(buf, "%.2f", v);
break;
case LPP_RELATIVE_HUMIDITY:
r.readRelativeHumidity(v);
strcpy(name, "humidity"); sprintf(buf, "%.2f", v);
break;
case LPP_BAROMETRIC_PRESSURE:
r.readPressure(v);
strcpy(name, "pressure"); sprintf(buf, "%.2f", v);
break;
case LPP_ALTITUDE:
r.readAltitude(v);
strcpy(name, "altitude"); sprintf(buf, "%.0f", v);
break;
case LPP_POWER:
r.readPower(v);
strcpy(name, "power"); sprintf(buf, "%6.2f", v);
break;
default:
r.skipData(type);
strcpy(name, "unk"); sprintf(buf, "");
}
display.setCursor(0, y);
display.print(name);
display.setCursor(
display.width()-display.getTextWidth(buf)-1, y
);
display.print(buf);
y = y + 12;
}
if (sensors_scroll) sensors_scroll_offset = (sensors_scroll_offset+1)%sensors_nb;
else sensors_scroll_offset = 0;
#endif
} else if (_page == HomePage::SHUTDOWN) {
display.setColor(DisplayDriver::GREEN);
display.setTextSize(1);
@ -255,6 +358,13 @@ public:
}
return true;
}
#if UI_SENSORS_PAGE == 1
if (c == KEY_ENTER && _page == HomePage::SENSORS) {
_task->toggleGPS();
next_sensors_refresh=0;
return true;
}
#endif
if (c == KEY_ENTER && _page == HomePage::SHUTDOWN) {
_shutdown_init = true; // need to wait for button to be released
return true;

1
examples/companion_radio/ui-new/UITask.h
View file

@ -6,6 +6,7 @@
#include <helpers/SensorManager.h>
#include <helpers/BaseSerialInterface.h>
#include <Arduino.h>
#include <helpers/sensors/LPPDataHelpers.h>
#ifdef PIN_BUZZER
#include <helpers/ui/buzzer.h>

701
examples/simple_repeater/MyMesh.cpp Normal file
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@ -0,0 +1,701 @@
#include "MyMesh.h"
/* ------------------------------ Config -------------------------------- */
#ifndef LORA_FREQ
#define LORA_FREQ 915.0
#endif
#ifndef LORA_BW
#define LORA_BW 250
#endif
#ifndef LORA_SF
#define LORA_SF 10
#endif
#ifndef LORA_CR
#define LORA_CR 5
#endif
#ifndef LORA_TX_POWER
#define LORA_TX_POWER 20
#endif
#ifndef ADVERT_NAME
#define ADVERT_NAME "repeater"
#endif
#ifndef ADVERT_LAT
#define ADVERT_LAT 0.0
#endif
#ifndef ADVERT_LON
#define ADVERT_LON 0.0
#endif
#ifndef ADMIN_PASSWORD
#define ADMIN_PASSWORD "password"
#endif
#ifndef SERVER_RESPONSE_DELAY
#define SERVER_RESPONSE_DELAY 300
#endif
#ifndef TXT_ACK_DELAY
#define TXT_ACK_DELAY 200
#endif
#define REQ_TYPE_GET_STATUS 0x01 // same as _GET_STATS
#define REQ_TYPE_KEEP_ALIVE 0x02
#define REQ_TYPE_GET_TELEMETRY_DATA 0x03
#define RESP_SERVER_LOGIN_OK 0 // response to ANON_REQ
#define CLI_REPLY_DELAY_MILLIS 600
ClientInfo *MyMesh::putClient(const mesh::Identity &id) {
uint32_t min_time = 0xFFFFFFFF;
ClientInfo *oldest = &known_clients[0];
for (int i = 0; i < MAX_CLIENTS; i++) {
if (known_clients[i].last_activity < min_time) {
oldest = &known_clients[i];
min_time = oldest->last_activity;
}
if (id.matches(known_clients[i].id)) return &known_clients[i]; // already known
}
oldest->id = id;
oldest->out_path_len = -1; // initially out_path is unknown
oldest->last_timestamp = 0;
return oldest;
}
void MyMesh::putNeighbour(const mesh::Identity &id, uint32_t timestamp, float snr) {
#if MAX_NEIGHBOURS // check if neighbours enabled
// find existing neighbour, else use least recently updated
uint32_t oldest_timestamp = 0xFFFFFFFF;
NeighbourInfo *neighbour = &neighbours[0];
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
// if neighbour already known, we should update it
if (id.matches(neighbours[i].id)) {
neighbour = &neighbours[i];
break;
}
// otherwise we should update the least recently updated neighbour
if (neighbours[i].heard_timestamp < oldest_timestamp) {
neighbour = &neighbours[i];
oldest_timestamp = neighbour->heard_timestamp;
}
}
// update neighbour info
neighbour->id = id;
neighbour->advert_timestamp = timestamp;
neighbour->heard_timestamp = getRTCClock()->getCurrentTime();
neighbour->snr = (int8_t)(snr * 4);
#endif
}
int MyMesh::handleRequest(ClientInfo *sender, uint32_t sender_timestamp, uint8_t *payload,
size_t payload_len) {
// uint32_t now = getRTCClock()->getCurrentTimeUnique();
// memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
memcpy(reply_data, &sender_timestamp,
4); // reflect sender_timestamp back in response packet (kind of like a 'tag')
switch (payload[0]) {
case REQ_TYPE_GET_STATUS: { // guests can also access this now
RepeaterStats stats;
stats.batt_milli_volts = board.getBattMilliVolts();
stats.curr_tx_queue_len = _mgr->getOutboundCount(0xFFFFFFFF);
stats.noise_floor = (int16_t)_radio->getNoiseFloor();
stats.last_rssi = (int16_t)radio_driver.getLastRSSI();
stats.n_packets_recv = radio_driver.getPacketsRecv();
stats.n_packets_sent = radio_driver.getPacketsSent();
stats.total_air_time_secs = getTotalAirTime() / 1000;
stats.total_up_time_secs = _ms->getMillis() / 1000;
stats.n_sent_flood = getNumSentFlood();
stats.n_sent_direct = getNumSentDirect();
stats.n_recv_flood = getNumRecvFlood();
stats.n_recv_direct = getNumRecvDirect();
stats.err_events = _err_flags;
stats.last_snr = (int16_t)(radio_driver.getLastSNR() * 4);
stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
stats.total_rx_air_time_secs = getReceiveAirTime() / 1000;
memcpy(&reply_data[4], &stats, sizeof(stats));
return 4 + sizeof(stats); // reply_len
}
case REQ_TYPE_GET_TELEMETRY_DATA: {
uint8_t perm_mask = ~(payload[1]); // NEW: first reserved byte (of 4), is now inverse mask to apply to permissions
telemetry.reset();
telemetry.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
// query other sensors -- target specific
sensors.querySensors((sender->is_admin ? 0xFF : 0x00) & perm_mask, telemetry);
uint8_t tlen = telemetry.getSize();
memcpy(&reply_data[4], telemetry.getBuffer(), tlen);
return 4 + tlen; // reply_len
}
}
return 0; // unknown command
}
mesh::Packet *MyMesh::createSelfAdvert() {
uint8_t app_data[MAX_ADVERT_DATA_SIZE];
uint8_t app_data_len;
{
AdvertDataBuilder builder(ADV_TYPE_REPEATER, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
app_data_len = builder.encodeTo(app_data);
}
return createAdvert(self_id, app_data, app_data_len);
}
File MyMesh::openAppend(const char *fname) {
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
return _fs->open(fname, FILE_O_WRITE);
#elif defined(RP2040_PLATFORM)
return _fs->open(fname, "a");
#else
return _fs->open(fname, "a", true);
#endif
}
bool MyMesh::allowPacketForward(const mesh::Packet *packet) {
if (_prefs.disable_fwd) return false;
if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
return true;
}
const char *MyMesh::getLogDateTime() {
static char tmp[32];
uint32_t now = getRTCClock()->getCurrentTime();
DateTime dt = DateTime(now);
sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(),
dt.year());
return tmp;
}
void MyMesh::logRxRaw(float snr, float rssi, const uint8_t raw[], int len) {
#if MESH_PACKET_LOGGING
Serial.print(getLogDateTime());
Serial.print(" RAW: ");
mesh::Utils::printHex(Serial, raw, len);
Serial.println();
#endif
}
void MyMesh::logRx(mesh::Packet *pkt, int len, float score) {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d", len,
pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
(int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score * 1000));
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ ||
pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void MyMesh::logTx(mesh::Packet *pkt, int len) {
#ifdef WITH_BRIDGE
bridge.onPacketTransmitted(pkt);
#endif
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)", len, pkt->getPayloadType(),
pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ ||
pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void MyMesh::logTxFail(mesh::Packet *pkt, int len) {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n", len, pkt->getPayloadType(),
pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
f.close();
}
}
}
int MyMesh::calcRxDelay(float score, uint32_t air_time) const {
if (_prefs.rx_delay_base <= 0.0f) return 0;
return (int)((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
}
uint32_t MyMesh::getRetransmitDelay(const mesh::Packet *packet) {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
return getRNG()->nextInt(0, 6) * t;
}
uint32_t MyMesh::getDirectRetransmitDelay(const mesh::Packet *packet) {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
return getRNG()->nextInt(0, 6) * t;
}
void MyMesh::onAnonDataRecv(mesh::Packet *packet, const uint8_t *secret, const mesh::Identity &sender,
uint8_t *data, size_t len) {
if (packet->getPayloadType() == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin
// client (unknown at this stage)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
bool is_admin;
data[len] = 0; // ensure null terminator
if (strcmp((char *)&data[4], _prefs.password) == 0) { // check for valid password
is_admin = true;
} else if (strcmp((char *)&data[4], _prefs.guest_password) == 0) { // check guest password
is_admin = false;
} else {
#if MESH_DEBUG
MESH_DEBUG_PRINTLN("Invalid password: %s", &data[4]);
#endif
return;
}
auto client = putClient(sender); // add to known clients (if not already known)
if (timestamp <= client->last_timestamp) {
MESH_DEBUG_PRINTLN("Possible login replay attack!");
return; // FATAL: client table is full -OR- replay attack
}
MESH_DEBUG_PRINTLN("Login success!");
client->last_timestamp = timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
client->is_admin = is_admin;
memcpy(client->secret, secret, PUB_KEY_SIZE);
uint32_t now = getRTCClock()->getCurrentTimeUnique();
memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
#if 0
memcpy(&reply_data[4], "OK", 2); // legacy response
#else
reply_data[4] = RESP_SERVER_LOGIN_OK;
reply_data[5] = 0; // NEW: recommended keep-alive interval (secs / 16)
reply_data[6] = is_admin ? 1 : 0;
reply_data[7] = 0; // FUTURE: reserved
getRNG()->random(&reply_data[8], 4); // random blob to help packet-hash uniqueness
#endif
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet *path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, 12);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet *reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 12);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
}
}
int MyMesh::searchPeersByHash(const uint8_t *hash) {
int n = 0;
for (int i = 0; i < MAX_CLIENTS; i++) {
if (known_clients[i].id.isHashMatch(hash)) {
matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
}
}
return n;
}
void MyMesh::getPeerSharedSecret(uint8_t *dest_secret, int peer_idx) {
int i = matching_peer_indexes[peer_idx];
if (i >= 0 && i < MAX_CLIENTS) {
// lookup pre-calculated shared_secret
memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
} else {
MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
}
}
void MyMesh::onAdvertRecv(mesh::Packet *packet, const mesh::Identity &id, uint32_t timestamp,
const uint8_t *app_data, size_t app_data_len) {
mesh::Mesh::onAdvertRecv(packet, id, timestamp, app_data, app_data_len); // chain to super impl
// if this a zero hop advert, add it to neighbours
if (packet->path_len == 0) {
AdvertDataParser parser(app_data, app_data_len);
if (parser.isValid() && parser.getType() == ADV_TYPE_REPEATER) { // just keep neigbouring Repeaters
putNeighbour(id, timestamp, packet->getSNR());
}
}
}
void MyMesh::onPeerDataRecv(mesh::Packet *packet, uint8_t type, int sender_idx, const uint8_t *secret,
uint8_t *data, size_t len) {
int i = matching_peer_indexes[sender_idx];
if (i < 0 ||
i >= MAX_CLIENTS) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
return;
}
auto client = &known_clients[i];
if (type == PAYLOAD_TYPE_REQ) { // request (from a Known admin client!)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
if (timestamp > client->last_timestamp) { // prevent replay attacks
int reply_len = handleRequest(client, timestamp, &data[4], len - 4);
if (reply_len == 0) return; // invalid command
client->last_timestamp = timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet *path = createPathReturn(client->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet *reply =
createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
} else if (type == PAYLOAD_TYPE_TXT_MSG && len > 5 && client->is_admin) { // a CLI command
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
uint flags = (data[4] >> 2); // message attempt number, and other flags
if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported text type received: flags=%02x", (uint32_t)flags);
} else if (sender_timestamp >= client->last_timestamp) { // prevent replay attacks
bool is_retry = (sender_timestamp == client->last_timestamp);
client->last_timestamp = sender_timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
// len can be > original length, but 'text' will be padded with zeroes
data[len] = 0; // need to make a C string again, with null terminator
if (flags == TXT_TYPE_PLAIN) { // for legacy CLI, send Acks
uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove
// to sender that we got it
mesh::Utils::sha256((uint8_t *)&ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key,
PUB_KEY_SIZE);
mesh::Packet *ack = createAck(ack_hash);
if (ack) {
if (client->out_path_len < 0) {
sendFlood(ack, TXT_ACK_DELAY);
} else {
sendDirect(ack, client->out_path, client->out_path_len, TXT_ACK_DELAY);
}
}
}
uint8_t temp[166];
char *command = (char *)&data[5];
char *reply = (char *)&temp[5];
if (is_retry) {
*reply = 0;
} else {
handleCommand(sender_timestamp, command, reply);
}
int text_len = strlen(reply);
if (text_len > 0) {
uint32_t timestamp = getRTCClock()->getCurrentTimeUnique();
if (timestamp == sender_timestamp) {
// WORKAROUND: the two timestamps need to be different, in the CLI view
timestamp++;
}
memcpy(temp, &timestamp, 4); // mostly an extra blob to help make packet_hash unique
temp[4] = (TXT_TYPE_CLI_DATA << 2); // NOTE: legacy was: TXT_TYPE_PLAIN
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply, CLI_REPLY_DELAY_MILLIS);
} else {
sendDirect(reply, client->out_path, client->out_path_len, CLI_REPLY_DELAY_MILLIS);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
}
}
bool MyMesh::onPeerPathRecv(mesh::Packet *packet, int sender_idx, const uint8_t *secret, uint8_t *path,
uint8_t path_len, uint8_t extra_type, uint8_t *extra, uint8_t extra_len) {
// TODO: prevent replay attacks
int i = matching_peer_indexes[sender_idx];
if (i >= 0 &&
i < MAX_CLIENTS) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t)path_len);
auto client = &known_clients[i];
memcpy(client->out_path, path, client->out_path_len = path_len); // store a copy of path, for sendDirect()
} else {
MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
}
// NOTE: no reciprocal path send!!
return false;
}
MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondClock &ms, mesh::RNG &rng,
mesh::RTCClock &rtc, mesh::MeshTables &tables)
: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
_cli(board, rtc, &_prefs, this), telemetry(MAX_PACKET_PAYLOAD - 4)
#if defined(WITH_RS232_BRIDGE)
, bridge(WITH_RS232_BRIDGE, _mgr, &rtc)
#elif defined(WITH_ESPNOW_BRIDGE)
, bridge(_mgr, &rtc)
#endif
{
memset(known_clients, 0, sizeof(known_clients));
next_local_advert = next_flood_advert = 0;
set_radio_at = revert_radio_at = 0;
_logging = false;
#if MAX_NEIGHBOURS
memset(neighbours, 0, sizeof(neighbours));
#endif
// defaults
memset(&_prefs, 0, sizeof(_prefs));
_prefs.airtime_factor = 1.0; // one half
_prefs.rx_delay_base = 0.0f; // turn off by default, was 10.0;
_prefs.tx_delay_factor = 0.5f; // was 0.25f
StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
_prefs.node_lat = ADVERT_LAT;
_prefs.node_lon = ADVERT_LON;
StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
_prefs.freq = LORA_FREQ;
_prefs.sf = LORA_SF;
_prefs.bw = LORA_BW;
_prefs.cr = LORA_CR;
_prefs.tx_power_dbm = LORA_TX_POWER;
_prefs.advert_interval = 1; // default to 2 minutes for NEW installs
_prefs.flood_advert_interval = 12; // 12 hours
_prefs.flood_max = 64;
_prefs.interference_threshold = 0; // disabled
}
void MyMesh::begin(FILESYSTEM *fs) {
mesh::Mesh::begin();
_fs = fs;
// load persisted prefs
_cli.loadPrefs(_fs);
#ifdef WITH_BRIDGE
bridge.begin();
#endif
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
radio_set_tx_power(_prefs.tx_power_dbm);
updateAdvertTimer();
updateFloodAdvertTimer();
}
void MyMesh::applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) {
set_radio_at = futureMillis(2000); // give CLI reply some time to be sent back, before applying temp radio params
pending_freq = freq;
pending_bw = bw;
pending_sf = sf;
pending_cr = cr;
revert_radio_at = futureMillis(2000 + timeout_mins * 60 * 1000); // schedule when to revert radio params
}
bool MyMesh::formatFileSystem() {
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
return InternalFS.format();
#elif defined(RP2040_PLATFORM)
return LittleFS.format();
#elif defined(ESP32)
return SPIFFS.format();
#else
#error "need to implement file system erase"
return false;
#endif
}
void MyMesh::sendSelfAdvertisement(int delay_millis) {
mesh::Packet *pkt = createSelfAdvert();
if (pkt) {
sendFlood(pkt, delay_millis);
} else {
MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
}
}
void MyMesh::updateAdvertTimer() {
if (_prefs.advert_interval > 0) { // schedule local advert timer
next_local_advert = futureMillis(((uint32_t)_prefs.advert_interval) * 2 * 60 * 1000);
} else {
next_local_advert = 0; // stop the timer
}
}
void MyMesh::updateFloodAdvertTimer() {
if (_prefs.flood_advert_interval > 0) { // schedule flood advert timer
next_flood_advert = futureMillis(((uint32_t)_prefs.flood_advert_interval) * 60 * 60 * 1000);
} else {
next_flood_advert = 0; // stop the timer
}
}
void MyMesh::dumpLogFile() {
#if defined(RP2040_PLATFORM)
File f = _fs->open(PACKET_LOG_FILE, "r");
#else
File f = _fs->open(PACKET_LOG_FILE);
#endif
if (f) {
while (f.available()) {
int c = f.read();
if (c < 0) break;
Serial.print((char)c);
}
f.close();
}
}
void MyMesh::setTxPower(uint8_t power_dbm) {
radio_set_tx_power(power_dbm);
}
void MyMesh::formatNeighborsReply(char *reply) {
char *dp = reply;
#if MAX_NEIGHBOURS
for (int i = 0; i < MAX_NEIGHBOURS && dp - reply < 134; i++) {
NeighbourInfo *neighbour = &neighbours[i];
if (neighbour->heard_timestamp == 0) continue; // skip empty slots
// add new line if not first item
if (i > 0) *dp++ = '\n';
char hex[10];
// get 4 bytes of neighbour id as hex
mesh::Utils::toHex(hex, neighbour->id.pub_key, 4);
// add next neighbour
uint32_t secs_ago = getRTCClock()->getCurrentTime() - neighbour->heard_timestamp;
sprintf(dp, "%s:%d:%d", hex, secs_ago, neighbour->snr);
while (*dp)
dp++; // find end of string
}
#endif
if (dp == reply) { // no neighbours, need empty response
strcpy(dp, "-none-");
dp += 6;
}
*dp = 0; // null terminator
}
void MyMesh::removeNeighbor(const uint8_t *pubkey, int key_len) {
#if MAX_NEIGHBOURS
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
NeighbourInfo *neighbour = &neighbours[i];
if (memcmp(neighbour->id.pub_key, pubkey, key_len) == 0) {
neighbours[i] = NeighbourInfo(); // clear neighbour entry
}
}
#endif
}
void MyMesh::saveIdentity(const mesh::LocalIdentity &new_id) {
self_id = new_id;
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
IdentityStore store(*_fs, "");
#elif defined(ESP32)
IdentityStore store(*_fs, "/identity");
#elif defined(RP2040_PLATFORM)
IdentityStore store(*_fs, "/identity");
#else
#error "need to define saveIdentity()"
#endif
store.save("_main", self_id);
}
void MyMesh::clearStats() {
radio_driver.resetStats();
resetStats();
((SimpleMeshTables *)getTables())->resetStats();
}
void MyMesh::handleCommand(uint32_t sender_timestamp, char *command, char *reply) {
while (*command == ' ')
command++; // skip leading spaces
if (strlen(command) > 4 && command[2] == '|') { // optional prefix (for companion radio CLI)
memcpy(reply, command, 3); // reflect the prefix back
reply += 3;
command += 3;
}
_cli.handleCommand(sender_timestamp, command, reply); // common CLI commands
}
void MyMesh::loop() {
#ifdef WITH_BRIDGE
bridge.loop();
#endif
mesh::Mesh::loop();
if (next_flood_advert && millisHasNowPassed(next_flood_advert)) {
mesh::Packet *pkt = createSelfAdvert();
if (pkt) sendFlood(pkt);
updateFloodAdvertTimer(); // schedule next flood advert
updateAdvertTimer(); // also schedule local advert (so they don't overlap)
} else if (next_local_advert && millisHasNowPassed(next_local_advert)) {
mesh::Packet *pkt = createSelfAdvert();
if (pkt) sendZeroHop(pkt);
updateAdvertTimer(); // schedule next local advert
}
if (set_radio_at && millisHasNowPassed(set_radio_at)) { // apply pending (temporary) radio params
set_radio_at = 0; // clear timer
radio_set_params(pending_freq, pending_bw, pending_sf, pending_cr);
MESH_DEBUG_PRINTLN("Temp radio params");
}
if (revert_radio_at && millisHasNowPassed(revert_radio_at)) { // revert radio params to orig
revert_radio_at = 0; // clear timer
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
MESH_DEBUG_PRINTLN("Radio params restored");
}
}

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#pragma once
#include <Arduino.h>
#include <Mesh.h>
#include <helpers/CommonCLI.h>
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
#include <InternalFileSystem.h>
#elif defined(RP2040_PLATFORM)
#include <LittleFS.h>
#elif defined(ESP32)
#include <SPIFFS.h>
#endif
#include <helpers/ArduinoHelpers.h>
#include <helpers/StaticPoolPacketManager.h>
#include <helpers/SimpleMeshTables.h>
#include <helpers/IdentityStore.h>
#include <helpers/AdvertDataHelpers.h>
#include <helpers/TxtDataHelpers.h>
#include <RTClib.h>
#include <target.h>
#ifdef WITH_RS232_BRIDGE
#include "helpers/bridges/RS232Bridge.h"
#define WITH_BRIDGE
#endif
#ifdef WITH_ESPNOW_BRIDGE
#include "helpers/bridges/ESPNowBridge.h"
#define WITH_BRIDGE
#endif
#ifdef WITH_BRIDGE
extern AbstractBridge* bridge;
#endif
struct RepeaterStats {
uint16_t batt_milli_volts;
uint16_t curr_tx_queue_len;
int16_t noise_floor;
int16_t last_rssi;
uint32_t n_packets_recv;
uint32_t n_packets_sent;
uint32_t total_air_time_secs;
uint32_t total_up_time_secs;
uint32_t n_sent_flood, n_sent_direct;
uint32_t n_recv_flood, n_recv_direct;
uint16_t err_events; // was 'n_full_events'
int16_t last_snr; // x 4
uint16_t n_direct_dups, n_flood_dups;
uint32_t total_rx_air_time_secs;
};
struct ClientInfo {
mesh::Identity id;
uint32_t last_timestamp, last_activity;
uint8_t secret[PUB_KEY_SIZE];
bool is_admin;
int8_t out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
};
#ifndef MAX_CLIENTS
#define MAX_CLIENTS 32
#endif
struct NeighbourInfo {
mesh::Identity id;
uint32_t advert_timestamp;
uint32_t heard_timestamp;
int8_t snr; // multiplied by 4, user should divide to get float value
};
#ifndef FIRMWARE_BUILD_DATE
#define FIRMWARE_BUILD_DATE "1 Sep 2025"
#endif
#ifndef FIRMWARE_VERSION
#define FIRMWARE_VERSION "v1.8.1"
#endif
#define FIRMWARE_ROLE "repeater"
#define PACKET_LOG_FILE "/packet_log"
class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
FILESYSTEM* _fs;
unsigned long next_local_advert, next_flood_advert;
bool _logging;
NodePrefs _prefs;
CommonCLI _cli;
uint8_t reply_data[MAX_PACKET_PAYLOAD];
ClientInfo known_clients[MAX_CLIENTS];
#if MAX_NEIGHBOURS
NeighbourInfo neighbours[MAX_NEIGHBOURS];
#endif
CayenneLPP telemetry;
unsigned long set_radio_at, revert_radio_at;
float pending_freq;
float pending_bw;
uint8_t pending_sf;
uint8_t pending_cr;
int matching_peer_indexes[MAX_CLIENTS];
#if defined(WITH_RS232_BRIDGE)
RS232Bridge bridge;
#elif defined(WITH_ESPNOW_BRIDGE)
ESPNowBridge bridge;
#endif
ClientInfo* putClient(const mesh::Identity& id);
void putNeighbour(const mesh::Identity& id, uint32_t timestamp, float snr);
int handleRequest(ClientInfo* sender, uint32_t sender_timestamp, uint8_t* payload, size_t payload_len);
mesh::Packet* createSelfAdvert();
File openAppend(const char* fname);
protected:
float getAirtimeBudgetFactor() const override {
return _prefs.airtime_factor;
}
bool allowPacketForward(const mesh::Packet* packet) override;
const char* getLogDateTime() override;
void logRxRaw(float snr, float rssi, const uint8_t raw[], int len) override;
void logRx(mesh::Packet* pkt, int len, float score) override;
void logTx(mesh::Packet* pkt, int len) override;
void logTxFail(mesh::Packet* pkt, int len) override;
int calcRxDelay(float score, uint32_t air_time) const override;
uint32_t getRetransmitDelay(const mesh::Packet* packet) override;
uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override;
int getInterferenceThreshold() const override {
return _prefs.interference_threshold;
}
int getAGCResetInterval() const override {
return ((int)_prefs.agc_reset_interval) * 4000; // milliseconds
}
uint8_t getExtraAckTransmitCount() const override {
return _prefs.multi_acks;
}
void onAnonDataRecv(mesh::Packet* packet, const uint8_t* secret, const mesh::Identity& sender, uint8_t* data, size_t len) override;
int searchPeersByHash(const uint8_t* hash) override;
void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override;
void onAdvertRecv(mesh::Packet* packet, const mesh::Identity& id, uint32_t timestamp, const uint8_t* app_data, size_t app_data_len);
void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override;
bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override;
public:
MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables);
void begin(FILESYSTEM* fs);
const char* getFirmwareVer() override { return FIRMWARE_VERSION; }
const char* getBuildDate() override { return FIRMWARE_BUILD_DATE; }
const char* getRole() override { return FIRMWARE_ROLE; }
const char* getNodeName() { return _prefs.node_name; }
NodePrefs* getNodePrefs() {
return &_prefs;
}
void savePrefs() override {
_cli.savePrefs(_fs);
}
void applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) override;
bool formatFileSystem() override;
void sendSelfAdvertisement(int delay_millis) override;
void updateAdvertTimer() override;
void updateFloodAdvertTimer() override;
void setLoggingOn(bool enable) override { _logging = enable; }
void eraseLogFile() override {
_fs->remove(PACKET_LOG_FILE);
}
void dumpLogFile() override;
void setTxPower(uint8_t power_dbm) override;
void formatNeighborsReply(char *reply) override;
void removeNeighbor(const uint8_t* pubkey, int key_len) override;
mesh::LocalIdentity& getSelfId() override { return self_id; }
void saveIdentity(const mesh::LocalIdentity& new_id) override;
void clearStats() override;
void handleCommand(uint32_t sender_timestamp, char* command, char* reply);
void loop();
};

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@ -1,833 +1,13 @@
#include <Arduino.h> // needed for PlatformIO
#include <Mesh.h>
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
#include <InternalFileSystem.h>
#elif defined(RP2040_PLATFORM)
#include <LittleFS.h>
#elif defined(ESP32)
#include <SPIFFS.h>
#endif
#include <helpers/ArduinoHelpers.h>
#include <helpers/StaticPoolPacketManager.h>
#include <helpers/SimpleMeshTables.h>
#include <helpers/IdentityStore.h>
#include <helpers/AdvertDataHelpers.h>
#include <helpers/TxtDataHelpers.h>
#include <helpers/CommonCLI.h>
#include <RTClib.h>
#include <target.h>
/* ------------------------------ Config -------------------------------- */
#ifndef FIRMWARE_BUILD_DATE
#define FIRMWARE_BUILD_DATE "1 Sep 2025"
#endif
#ifndef FIRMWARE_VERSION
#define FIRMWARE_VERSION "v1.8.1"
#endif
#ifndef LORA_FREQ
#define LORA_FREQ 915.0
#endif
#ifndef LORA_BW
#define LORA_BW 250
#endif
#ifndef LORA_SF
#define LORA_SF 10
#endif
#ifndef LORA_CR
#define LORA_CR 5
#endif
#ifndef LORA_TX_POWER
#define LORA_TX_POWER 20
#endif
#ifndef ADVERT_NAME
#define ADVERT_NAME "repeater"
#endif
#ifndef ADVERT_LAT
#define ADVERT_LAT 0.0
#endif
#ifndef ADVERT_LON
#define ADVERT_LON 0.0
#endif
#ifndef ADMIN_PASSWORD
#define ADMIN_PASSWORD "password"
#endif
#ifndef SERVER_RESPONSE_DELAY
#define SERVER_RESPONSE_DELAY 300
#endif
#ifndef TXT_ACK_DELAY
#define TXT_ACK_DELAY 200
#endif
#include "MyMesh.h"
#ifdef DISPLAY_CLASS
#include "UITask.h"
static UITask ui_task(display);
#endif
#define FIRMWARE_ROLE "repeater"
#define PACKET_LOG_FILE "/packet_log"
/* ------------------------------ Code -------------------------------- */
#ifdef WITH_RS232_BRIDGE
#include "helpers/bridges/RS232Bridge.h"
#define WITH_BRIDGE
#endif
#ifdef WITH_ESPNOW_BRIDGE
#include "helpers/bridges/ESPNowBridge.h"
#define WITH_BRIDGE
#endif
#define REQ_TYPE_GET_STATUS 0x01 // same as _GET_STATS
#define REQ_TYPE_KEEP_ALIVE 0x02
#define REQ_TYPE_GET_TELEMETRY_DATA 0x03
#define RESP_SERVER_LOGIN_OK 0 // response to ANON_REQ
struct RepeaterStats {
uint16_t batt_milli_volts;
uint16_t curr_tx_queue_len;
int16_t noise_floor;
int16_t last_rssi;
uint32_t n_packets_recv;
uint32_t n_packets_sent;
uint32_t total_air_time_secs;
uint32_t total_up_time_secs;
uint32_t n_sent_flood, n_sent_direct;
uint32_t n_recv_flood, n_recv_direct;
uint16_t err_events; // was 'n_full_events'
int16_t last_snr; // x 4
uint16_t n_direct_dups, n_flood_dups;
uint32_t total_rx_air_time_secs;
};
struct ClientInfo {
mesh::Identity id;
uint32_t last_timestamp, last_activity;
uint8_t secret[PUB_KEY_SIZE];
bool is_admin;
int8_t out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
};
#ifndef MAX_CLIENTS
#define MAX_CLIENTS 32
#endif
#ifdef WITH_BRIDGE
AbstractBridge* bridge;
#endif
struct NeighbourInfo {
mesh::Identity id;
uint32_t advert_timestamp;
uint32_t heard_timestamp;
int8_t snr; // multiplied by 4, user should divide to get float value
};
#define CLI_REPLY_DELAY_MILLIS 600
class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
FILESYSTEM* _fs;
unsigned long next_local_advert, next_flood_advert;
bool _logging;
NodePrefs _prefs;
CommonCLI _cli;
uint8_t reply_data[MAX_PACKET_PAYLOAD];
ClientInfo known_clients[MAX_CLIENTS];
#if MAX_NEIGHBOURS
NeighbourInfo neighbours[MAX_NEIGHBOURS];
#endif
CayenneLPP telemetry;
unsigned long set_radio_at, revert_radio_at;
float pending_freq;
float pending_bw;
uint8_t pending_sf;
uint8_t pending_cr;
ClientInfo* putClient(const mesh::Identity& id) {
uint32_t min_time = 0xFFFFFFFF;
ClientInfo* oldest = &known_clients[0];
for (int i = 0; i < MAX_CLIENTS; i++) {
if (known_clients[i].last_activity < min_time) {
oldest = &known_clients[i];
min_time = oldest->last_activity;
}
if (id.matches(known_clients[i].id)) return &known_clients[i]; // already known
}
oldest->id = id;
oldest->out_path_len = -1; // initially out_path is unknown
oldest->last_timestamp = 0;
return oldest;
}
void putNeighbour(const mesh::Identity& id, uint32_t timestamp, float snr) {
#if MAX_NEIGHBOURS // check if neighbours enabled
// find existing neighbour, else use least recently updated
uint32_t oldest_timestamp = 0xFFFFFFFF;
NeighbourInfo* neighbour = &neighbours[0];
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
// if neighbour already known, we should update it
if (id.matches(neighbours[i].id)) {
neighbour = &neighbours[i];
break;
}
// otherwise we should update the least recently updated neighbour
if (neighbours[i].heard_timestamp < oldest_timestamp) {
neighbour = &neighbours[i];
oldest_timestamp = neighbour->heard_timestamp;
}
}
// update neighbour info
neighbour->id = id;
neighbour->advert_timestamp = timestamp;
neighbour->heard_timestamp = getRTCClock()->getCurrentTime();
neighbour->snr = (int8_t) (snr * 4);
#endif
}
int handleRequest(ClientInfo* sender, uint32_t sender_timestamp, uint8_t* payload, size_t payload_len) {
// uint32_t now = getRTCClock()->getCurrentTimeUnique();
// memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
memcpy(reply_data, &sender_timestamp, 4); // reflect sender_timestamp back in response packet (kind of like a 'tag')
switch (payload[0]) {
case REQ_TYPE_GET_STATUS: { // guests can also access this now
RepeaterStats stats;
stats.batt_milli_volts = board.getBattMilliVolts();
stats.curr_tx_queue_len = _mgr->getOutboundCount(0xFFFFFFFF);
stats.noise_floor = (int16_t)_radio->getNoiseFloor();
stats.last_rssi = (int16_t) radio_driver.getLastRSSI();
stats.n_packets_recv = radio_driver.getPacketsRecv();
stats.n_packets_sent = radio_driver.getPacketsSent();
stats.total_air_time_secs = getTotalAirTime() / 1000;
stats.total_up_time_secs = _ms->getMillis() / 1000;
stats.n_sent_flood = getNumSentFlood();
stats.n_sent_direct = getNumSentDirect();
stats.n_recv_flood = getNumRecvFlood();
stats.n_recv_direct = getNumRecvDirect();
stats.err_events = _err_flags;
stats.last_snr = (int16_t)(radio_driver.getLastSNR() * 4);
stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
stats.total_rx_air_time_secs = getReceiveAirTime() / 1000;
memcpy(&reply_data[4], &stats, sizeof(stats));
return 4 + sizeof(stats); // reply_len
}
case REQ_TYPE_GET_TELEMETRY_DATA: {
uint8_t perm_mask = ~(payload[1]); // NEW: first reserved byte (of 4), is now inverse mask to apply to permissions
telemetry.reset();
telemetry.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
// query other sensors -- target specific
sensors.querySensors((sender->is_admin ? 0xFF : 0x00) & perm_mask, telemetry);
uint8_t tlen = telemetry.getSize();
memcpy(&reply_data[4], telemetry.getBuffer(), tlen);
return 4 + tlen; // reply_len
}
}
return 0; // unknown command
}
mesh::Packet* createSelfAdvert() {
uint8_t app_data[MAX_ADVERT_DATA_SIZE];
uint8_t app_data_len;
{
AdvertDataBuilder builder(ADV_TYPE_REPEATER, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
app_data_len = builder.encodeTo(app_data);
}
return createAdvert(self_id, app_data, app_data_len);
}
File openAppend(const char* fname) {
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
return _fs->open(fname, FILE_O_WRITE);
#elif defined(RP2040_PLATFORM)
return _fs->open(fname, "a");
#else
return _fs->open(fname, "a", true);
#endif
}
protected:
float getAirtimeBudgetFactor() const override {
return _prefs.airtime_factor;
}
bool allowPacketForward(const mesh::Packet* packet) override {
if (_prefs.disable_fwd) return false;
if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
return true;
}
const char* getLogDateTime() override {
static char tmp[32];
uint32_t now = getRTCClock()->getCurrentTime();
DateTime dt = DateTime(now);
sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(), dt.year());
return tmp;
}
void logRxRaw(float snr, float rssi, const uint8_t raw[], int len) override {
#if MESH_PACKET_LOGGING
Serial.print(getLogDateTime());
Serial.print(" RAW: ");
mesh::Utils::printHex(Serial, raw, len);
Serial.println();
#endif
}
void logRx(mesh::Packet* pkt, int len, float score) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
(int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score*1000));
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
|| pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void logTx(mesh::Packet* pkt, int len) override {
#ifdef WITH_BRIDGE
bridge->onPacketTransmitted(pkt);
#endif
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
|| pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void logTxFail(mesh::Packet* pkt, int len) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
f.close();
}
}
}
int calcRxDelay(float score, uint32_t air_time) const override {
if (_prefs.rx_delay_base <= 0.0f) return 0;
return (int) ((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
}
uint32_t getRetransmitDelay(const mesh::Packet* packet) override {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
return getRNG()->nextInt(0, 6)*t;
}
uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
return getRNG()->nextInt(0, 6)*t;
}
int getInterferenceThreshold() const override {
return _prefs.interference_threshold;
}
int getAGCResetInterval() const override {
return ((int)_prefs.agc_reset_interval) * 4000; // milliseconds
}
uint8_t getExtraAckTransmitCount() const override {
return _prefs.multi_acks;
}
void onAnonDataRecv(mesh::Packet* packet, const uint8_t* secret, const mesh::Identity& sender, uint8_t* data, size_t len) override {
if (packet->getPayloadType() == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin client (unknown at this stage)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
bool is_admin;
data[len] = 0; // ensure null terminator
if (strcmp((char *) &data[4], _prefs.password) == 0) { // check for valid password
is_admin = true;
} else if (strcmp((char *) &data[4], _prefs.guest_password) == 0) { // check guest password
is_admin = false;
} else {
#if MESH_DEBUG
MESH_DEBUG_PRINTLN("Invalid password: %s", &data[4]);
#endif
return;
}
auto client = putClient(sender); // add to known clients (if not already known)
if (timestamp <= client->last_timestamp) {
MESH_DEBUG_PRINTLN("Possible login replay attack!");
return; // FATAL: client table is full -OR- replay attack
}
MESH_DEBUG_PRINTLN("Login success!");
client->last_timestamp = timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
client->is_admin = is_admin;
memcpy(client->secret, secret, PUB_KEY_SIZE);
uint32_t now = getRTCClock()->getCurrentTimeUnique();
memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
#if 0
memcpy(&reply_data[4], "OK", 2); // legacy response
#else
reply_data[4] = RESP_SERVER_LOGIN_OK;
reply_data[5] = 0; // NEW: recommended keep-alive interval (secs / 16)
reply_data[6] = is_admin ? 1 : 0;
reply_data[7] = 0; // FUTURE: reserved
getRNG()->random(&reply_data[8], 4); // random blob to help packet-hash uniqueness
#endif
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, 12);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 12);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
}
}
int matching_peer_indexes[MAX_CLIENTS];
int searchPeersByHash(const uint8_t* hash) override {
int n = 0;
for (int i = 0; i < MAX_CLIENTS; i++) {
if (known_clients[i].id.isHashMatch(hash)) {
matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
}
}
return n;
}
void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override {
int i = matching_peer_indexes[peer_idx];
if (i >= 0 && i < MAX_CLIENTS) {
// lookup pre-calculated shared_secret
memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
} else {
MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
}
}
void onAdvertRecv(mesh::Packet* packet, const mesh::Identity& id, uint32_t timestamp, const uint8_t* app_data, size_t app_data_len) {
mesh::Mesh::onAdvertRecv(packet, id, timestamp, app_data, app_data_len); // chain to super impl
// if this a zero hop advert, add it to neighbours
if (packet->path_len == 0) {
AdvertDataParser parser(app_data, app_data_len);
if (parser.isValid() && parser.getType() == ADV_TYPE_REPEATER) { // just keep neigbouring Repeaters
putNeighbour(id, timestamp, packet->getSNR());
}
}
}
void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override {
int i = matching_peer_indexes[sender_idx];
if (i < 0 || i >= MAX_CLIENTS) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
return;
}
auto client = &known_clients[i];
if (type == PAYLOAD_TYPE_REQ) { // request (from a Known admin client!)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
if (timestamp > client->last_timestamp) { // prevent replay attacks
int reply_len = handleRequest(client, timestamp, &data[4], len - 4);
if (reply_len == 0) return; // invalid command
client->last_timestamp = timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(client->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
} else if (type == PAYLOAD_TYPE_TXT_MSG && len > 5 && client->is_admin) { // a CLI command
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
uint flags = (data[4] >> 2); // message attempt number, and other flags
if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported text type received: flags=%02x", (uint32_t)flags);
} else if (sender_timestamp >= client->last_timestamp) { // prevent replay attacks
bool is_retry = (sender_timestamp == client->last_timestamp);
client->last_timestamp = sender_timestamp;
client->last_activity = getRTCClock()->getCurrentTime();
// len can be > original length, but 'text' will be padded with zeroes
data[len] = 0; // need to make a C string again, with null terminator
if (flags == TXT_TYPE_PLAIN) { // for legacy CLI, send Acks
uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key, PUB_KEY_SIZE);
mesh::Packet* ack = createAck(ack_hash);
if (ack) {
if (client->out_path_len < 0) {
sendFlood(ack, TXT_ACK_DELAY);
} else {
sendDirect(ack, client->out_path, client->out_path_len, TXT_ACK_DELAY);
}
}
}
uint8_t temp[166];
char *command = (char *) &data[5];
char *reply = (char *) &temp[5];
if (is_retry) {
*reply = 0;
} else {
handleCommand(sender_timestamp, command, reply);
}
int text_len = strlen(reply);
if (text_len > 0) {
uint32_t timestamp = getRTCClock()->getCurrentTimeUnique();
if (timestamp == sender_timestamp) {
// WORKAROUND: the two timestamps need to be different, in the CLI view
timestamp++;
}
memcpy(temp, &timestamp, 4); // mostly an extra blob to help make packet_hash unique
temp[4] = (TXT_TYPE_CLI_DATA << 2); // NOTE: legacy was: TXT_TYPE_PLAIN
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply, CLI_REPLY_DELAY_MILLIS);
} else {
sendDirect(reply, client->out_path, client->out_path_len, CLI_REPLY_DELAY_MILLIS);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
}
}
bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override {
// TODO: prevent replay attacks
int i = matching_peer_indexes[sender_idx];
if (i >= 0 && i < MAX_CLIENTS) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t) path_len);
auto client = &known_clients[i];
memcpy(client->out_path, path, client->out_path_len = path_len); // store a copy of path, for sendDirect()
} else {
MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
}
// NOTE: no reciprocal path send!!
return false;
}
public:
MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
_cli(board, rtc, &_prefs, this), telemetry(MAX_PACKET_PAYLOAD - 4)
{
#ifdef WITH_BRIDGE
#if defined(WITH_RS232_BRIDGE)
bridge = new RS232Bridge(WITH_RS232_BRIDGE, _mgr, &rtc);
#elif defined(WITH_ESPNOW_BRIDGE)
bridge = new ESPNowBridge(_mgr, &rtc);
#else
#error "You must choose either RS232 or ESPNow bridge"
#endif
#endif
memset(known_clients, 0, sizeof(known_clients));
next_local_advert = next_flood_advert = 0;
set_radio_at = revert_radio_at = 0;
_logging = false;
#if MAX_NEIGHBOURS
memset(neighbours, 0, sizeof(neighbours));
#endif
// defaults
memset(&_prefs, 0, sizeof(_prefs));
_prefs.airtime_factor = 1.0; // one half
_prefs.rx_delay_base = 0.0f; // turn off by default, was 10.0;
_prefs.tx_delay_factor = 0.5f; // was 0.25f
StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
_prefs.node_lat = ADVERT_LAT;
_prefs.node_lon = ADVERT_LON;
StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
_prefs.freq = LORA_FREQ;
_prefs.sf = LORA_SF;
_prefs.bw = LORA_BW;
_prefs.cr = LORA_CR;
_prefs.tx_power_dbm = LORA_TX_POWER;
_prefs.advert_interval = 1; // default to 2 minutes for NEW installs
_prefs.flood_advert_interval = 12; // 12 hours
_prefs.flood_max = 64;
_prefs.interference_threshold = 0; // disabled
}
void begin(FILESYSTEM* fs) {
mesh::Mesh::begin();
_fs = fs;
// load persisted prefs
_cli.loadPrefs(_fs);
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
radio_set_tx_power(_prefs.tx_power_dbm);
updateAdvertTimer();
updateFloodAdvertTimer();
}
const char* getFirmwareVer() override { return FIRMWARE_VERSION; }
const char* getBuildDate() override { return FIRMWARE_BUILD_DATE; }
const char* getRole() override { return FIRMWARE_ROLE; }
const char* getNodeName() { return _prefs.node_name; }
NodePrefs* getNodePrefs() {
return &_prefs;
}
void savePrefs() override {
_cli.savePrefs(_fs);
}
void applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) override {
set_radio_at = futureMillis(2000); // give CLI reply some time to be sent back, before applying temp radio params
pending_freq = freq;
pending_bw = bw;
pending_sf = sf;
pending_cr = cr;
revert_radio_at = futureMillis(2000 + timeout_mins*60*1000); // schedule when to revert radio params
}
bool formatFileSystem() override {
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
return InternalFS.format();
#elif defined(RP2040_PLATFORM)
return LittleFS.format();
#elif defined(ESP32)
return SPIFFS.format();
#else
#error "need to implement file system erase"
return false;
#endif
}
void sendSelfAdvertisement(int delay_millis) override {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) {
sendFlood(pkt, delay_millis);
} else {
MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
}
}
void updateAdvertTimer() override {
if (_prefs.advert_interval > 0) { // schedule local advert timer
next_local_advert = futureMillis( ((uint32_t)_prefs.advert_interval) * 2 * 60 * 1000);
} else {
next_local_advert = 0; // stop the timer
}
}
void updateFloodAdvertTimer() override {
if (_prefs.flood_advert_interval > 0) { // schedule flood advert timer
next_flood_advert = futureMillis( ((uint32_t)_prefs.flood_advert_interval) * 60 * 60 * 1000);
} else {
next_flood_advert = 0; // stop the timer
}
}
void setLoggingOn(bool enable) override { _logging = enable; }
void eraseLogFile() override {
_fs->remove(PACKET_LOG_FILE);
}
void dumpLogFile() override {
#if defined(RP2040_PLATFORM)
File f = _fs->open(PACKET_LOG_FILE, "r");
#else
File f = _fs->open(PACKET_LOG_FILE);
#endif
if (f) {
while (f.available()) {
int c = f.read();
if (c < 0) break;
Serial.print((char)c);
}
f.close();
}
}
void setTxPower(uint8_t power_dbm) override {
radio_set_tx_power(power_dbm);
}
void formatNeighborsReply(char *reply) override {
char *dp = reply;
#if MAX_NEIGHBOURS
for (int i = 0; i < MAX_NEIGHBOURS && dp - reply < 134; i++) {
NeighbourInfo* neighbour = &neighbours[i];
if (neighbour->heard_timestamp == 0) continue; // skip empty slots
// add new line if not first item
if (i > 0) *dp++ = '\n';
char hex[10];
// get 4 bytes of neighbour id as hex
mesh::Utils::toHex(hex, neighbour->id.pub_key, 4);
// add next neighbour
uint32_t secs_ago = getRTCClock()->getCurrentTime() - neighbour->heard_timestamp;
sprintf(dp, "%s:%d:%d", hex, secs_ago, neighbour->snr);
while (*dp) dp++; // find end of string
}
#endif
if (dp == reply) { // no neighbours, need empty response
strcpy(dp, "-none-"); dp += 6;
}
*dp = 0; // null terminator
}
void removeNeighbor(const uint8_t* pubkey, int key_len) override {
#if MAX_NEIGHBOURS
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
NeighbourInfo* neighbour = &neighbours[i];
if(memcmp(neighbour->id.pub_key, pubkey, key_len) == 0){
neighbours[i] = NeighbourInfo(); // clear neighbour entry
}
}
#endif
}
mesh::LocalIdentity& getSelfId() override { return self_id; }
void saveIdentity(const mesh::LocalIdentity& new_id) override {
self_id = new_id;
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
IdentityStore store(*_fs, "");
#elif defined(ESP32)
IdentityStore store(*_fs, "/identity");
#elif defined(RP2040_PLATFORM)
IdentityStore store(*_fs, "/identity");
#else
#error "need to define saveIdentity()"
#endif
store.save("_main", self_id);
}
void clearStats() override {
radio_driver.resetStats();
resetStats();
((SimpleMeshTables *)getTables())->resetStats();
}
void handleCommand(uint32_t sender_timestamp, char* command, char* reply) {
while (*command == ' ') command++; // skip leading spaces
if (strlen(command) > 4 && command[2] == '|') { // optional prefix (for companion radio CLI)
memcpy(reply, command, 3); // reflect the prefix back
reply += 3;
command += 3;
}
_cli.handleCommand(sender_timestamp, command, reply); // common CLI commands
}
void loop() {
#ifdef WITH_BRIDGE
bridge->loop();
#endif
mesh::Mesh::loop();
if (next_flood_advert && millisHasNowPassed(next_flood_advert)) {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) sendFlood(pkt);
updateFloodAdvertTimer(); // schedule next flood advert
updateAdvertTimer(); // also schedule local advert (so they don't overlap)
} else if (next_local_advert && millisHasNowPassed(next_local_advert)) {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) sendZeroHop(pkt);
updateAdvertTimer(); // schedule next local advert
}
if (set_radio_at && millisHasNowPassed(set_radio_at)) { // apply pending (temporary) radio params
set_radio_at = 0; // clear timer
radio_set_params(pending_freq, pending_bw, pending_sf, pending_cr);
MESH_DEBUG_PRINTLN("Temp radio params");
}
if (revert_radio_at && millisHasNowPassed(revert_radio_at)) { // revert radio params to orig
revert_radio_at = 0; // clear timer
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
MESH_DEBUG_PRINTLN("Radio params restored");
}
#ifdef DISPLAY_CLASS
ui_task.loop();
#endif
}
};
StdRNG fast_rng;
SimpleMeshTables tables;
@ -843,10 +23,6 @@ void setup() {
Serial.begin(115200);
delay(1000);
#ifdef WITH_BRIDGE
bridge->begin();
#endif
board.begin();
#ifdef DISPLAY_CLASS
@ -935,4 +111,7 @@ void loop() {
the_mesh.loop();
sensors.loop();
#ifdef DISPLAY_CLASS
ui_task.loop();
#endif
}

809
examples/simple_room_server/MyMesh.cpp Normal file
View file

@ -0,0 +1,809 @@
#include "MyMesh.h"
#define REPLY_DELAY_MILLIS 1500
#define PUSH_NOTIFY_DELAY_MILLIS 2000
#define SYNC_PUSH_INTERVAL 1200
#define PUSH_ACK_TIMEOUT_FLOOD 12000
#define PUSH_TIMEOUT_BASE 4000
#define PUSH_ACK_TIMEOUT_FACTOR 2000
#define POST_SYNC_DELAY_SECS 6
#define CLIENT_KEEP_ALIVE_SECS 0 // Now Disabled (was 128)
#define REQ_TYPE_GET_STATUS 0x01 // same as _GET_STATS
#define REQ_TYPE_KEEP_ALIVE 0x02
#define REQ_TYPE_GET_TELEMETRY_DATA 0x03
#define RESP_SERVER_LOGIN_OK 0 // response to ANON_REQ
struct ServerStats {
uint16_t batt_milli_volts;
uint16_t curr_tx_queue_len;
int16_t noise_floor;
int16_t last_rssi;
uint32_t n_packets_recv;
uint32_t n_packets_sent;
uint32_t total_air_time_secs;
uint32_t total_up_time_secs;
uint32_t n_sent_flood, n_sent_direct;
uint32_t n_recv_flood, n_recv_direct;
uint16_t err_events; // was 'n_full_events'
int16_t last_snr; // x 4
uint16_t n_direct_dups, n_flood_dups;
uint16_t n_posted, n_post_push;
};
ClientInfo *MyMesh::putClient(const mesh::Identity &id) {
for (int i = 0; i < num_clients; i++) {
if (id.matches(known_clients[i].id)) return &known_clients[i]; // already known
}
ClientInfo *newClient;
if (num_clients < MAX_CLIENTS) {
newClient = &known_clients[num_clients++];
} else { // table is currently full
// evict least active client
uint32_t oldest_timestamp = 0xFFFFFFFF;
newClient = &known_clients[0];
for (int i = 0; i < num_clients; i++) {
auto c = &known_clients[i];
if (c->last_activity < oldest_timestamp) {
oldest_timestamp = c->last_activity;
newClient = c;
}
}
}
newClient->id = id;
newClient->out_path_len = -1; // initially out_path is unknown
newClient->last_timestamp = 0;
return newClient;
}
void MyMesh::evict(ClientInfo *client) {
client->last_activity = 0; // this slot will now be re-used (will be oldest)
memset(client->id.pub_key, 0, sizeof(client->id.pub_key));
memset(client->secret, 0, sizeof(client->secret));
client->pending_ack = 0;
}
void MyMesh::addPost(ClientInfo *client, const char *postData) {
// TODO: suggested postData format: <title>/<descrption>
posts[next_post_idx].author = client->id; // add to cyclic queue
StrHelper::strncpy(posts[next_post_idx].text, postData, MAX_POST_TEXT_LEN);
posts[next_post_idx].post_timestamp = getRTCClock()->getCurrentTimeUnique();
next_post_idx = (next_post_idx + 1) % MAX_UNSYNCED_POSTS;
next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS);
_num_posted++; // stats
}
void MyMesh::pushPostToClient(ClientInfo *client, PostInfo &post) {
int len = 0;
memcpy(&reply_data[len], &post.post_timestamp, 4);
len += 4; // this is a PAST timestamp... but should be accepted by client
uint8_t attempt;
getRNG()->random(&attempt, 1); // need this for re-tries, so packet hash (and ACK) will be different
reply_data[len++] = (TXT_TYPE_SIGNED_PLAIN << 2) | (attempt & 3); // 'signed' plain text
// encode prefix of post.author.pub_key
memcpy(&reply_data[len], post.author.pub_key, 4);
len += 4; // just first 4 bytes
int text_len = strlen(post.text);
memcpy(&reply_data[len], post.text, text_len);
len += text_len;
// calc expected ACK reply
mesh::Utils::sha256((uint8_t *)&client->pending_ack, 4, reply_data, len, client->id.pub_key, PUB_KEY_SIZE);
client->push_post_timestamp = post.post_timestamp;
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, client->secret, reply_data, len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply);
client->ack_timeout = futureMillis(PUSH_ACK_TIMEOUT_FLOOD);
} else {
sendDirect(reply, client->out_path, client->out_path_len);
client->ack_timeout =
futureMillis(PUSH_TIMEOUT_BASE + PUSH_ACK_TIMEOUT_FACTOR * (client->out_path_len + 1));
}
_num_post_pushes++; // stats
} else {
client->pending_ack = 0;
MESH_DEBUG_PRINTLN("Unable to push post to client");
}
}
uint8_t MyMesh::getUnsyncedCount(ClientInfo *client) {
uint8_t count = 0;
for (int k = 0; k < MAX_UNSYNCED_POSTS; k++) {
if (posts[k].post_timestamp > client->sync_since // is new post for this Client?
&& !posts[k].author.matches(client->id)) { // don't push posts to the author
count++;
}
}
return count;
}
bool MyMesh::processAck(const uint8_t *data) {
for (int i = 0; i < num_clients; i++) {
auto client = &known_clients[i];
if (client->pending_ack && memcmp(data, &client->pending_ack, 4) == 0) { // got an ACK from Client!
client->pending_ack = 0; // clear this, so next push can happen
client->push_failures = 0;
client->sync_since = client->push_post_timestamp; // advance Client's SINCE timestamp, to sync next post
return true;
}
}
return false;
}
mesh::Packet *MyMesh::createSelfAdvert() {
uint8_t app_data[MAX_ADVERT_DATA_SIZE];
uint8_t app_data_len;
{
AdvertDataBuilder builder(ADV_TYPE_ROOM, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
app_data_len = builder.encodeTo(app_data);
}
return createAdvert(self_id, app_data, app_data_len);
}
File MyMesh::openAppend(const char *fname) {
#if defined(NRF52_PLATFORM)
return _fs->open(fname, FILE_O_WRITE);
#elif defined(RP2040_PLATFORM)
return _fs->open(fname, "a");
#else
return _fs->open(fname, "a", true);
#endif
}
int MyMesh::handleRequest(ClientInfo *sender, uint32_t sender_timestamp, uint8_t *payload,
size_t payload_len) {
// uint32_t now = getRTCClock()->getCurrentTimeUnique();
// memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
memcpy(reply_data, &sender_timestamp, 4); // reflect sender_timestamp back in response packet (kind of like a 'tag')
switch (payload[0]) {
case REQ_TYPE_GET_STATUS: {
ServerStats stats;
stats.batt_milli_volts = board.getBattMilliVolts();
stats.curr_tx_queue_len = _mgr->getOutboundCount(0xFFFFFFFF);
stats.noise_floor = (int16_t)_radio->getNoiseFloor();
stats.last_rssi = (int16_t)radio_driver.getLastRSSI();
stats.n_packets_recv = radio_driver.getPacketsRecv();
stats.n_packets_sent = radio_driver.getPacketsSent();
stats.total_air_time_secs = getTotalAirTime() / 1000;
stats.total_up_time_secs = _ms->getMillis() / 1000;
stats.n_sent_flood = getNumSentFlood();
stats.n_sent_direct = getNumSentDirect();
stats.n_recv_flood = getNumRecvFlood();
stats.n_recv_direct = getNumRecvDirect();
stats.err_events = _err_flags;
stats.last_snr = (int16_t)(radio_driver.getLastSNR() * 4);
stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
stats.n_posted = _num_posted;
stats.n_post_push = _num_post_pushes;
memcpy(&reply_data[4], &stats, sizeof(stats));
return 4 + sizeof(stats);
}
case REQ_TYPE_GET_TELEMETRY_DATA: {
uint8_t perm_mask = ~(payload[1]); // NEW: first reserved byte (of 4), is now inverse mask to apply to permissions
telemetry.reset();
telemetry.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
// query other sensors -- target specific
sensors.querySensors((sender->permission == RoomPermission::ADMIN ? 0xFF : 0x00) & perm_mask, telemetry);
uint8_t tlen = telemetry.getSize();
memcpy(&reply_data[4], telemetry.getBuffer(), tlen);
return 4 + tlen; // reply_len
}
}
return 0; // unknown command
}
void MyMesh::logRxRaw(float snr, float rssi, const uint8_t raw[], int len) {
#if MESH_PACKET_LOGGING
Serial.print(getLogDateTime());
Serial.print(" RAW: ");
mesh::Utils::printHex(Serial, raw, len);
Serial.println();
#endif
}
void MyMesh::logRx(mesh::Packet *pkt, int len, float score) {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d", len,
pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
(int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score * 1000));
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ ||
pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void MyMesh::logTx(mesh::Packet *pkt, int len) {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)", len, pkt->getPayloadType(),
pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ ||
pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void MyMesh::logTxFail(mesh::Packet *pkt, int len) {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n", len, pkt->getPayloadType(),
pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
f.close();
}
}
}
int MyMesh::calcRxDelay(float score, uint32_t air_time) const {
if (_prefs.rx_delay_base <= 0.0f) return 0;
return (int)((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
}
const char *MyMesh::getLogDateTime() {
static char tmp[32];
uint32_t now = getRTCClock()->getCurrentTime();
DateTime dt = DateTime(now);
sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(),
dt.year());
return tmp;
}
uint32_t MyMesh::getRetransmitDelay(const mesh::Packet *packet) {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
return getRNG()->nextInt(0, 6) * t;
}
uint32_t MyMesh::getDirectRetransmitDelay(const mesh::Packet *packet) {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
return getRNG()->nextInt(0, 6) * t;
}
bool MyMesh::allowPacketForward(const mesh::Packet *packet) {
if (_prefs.disable_fwd) return false;
if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
return true;
}
void MyMesh::onAnonDataRecv(mesh::Packet *packet, const uint8_t *secret, const mesh::Identity &sender,
uint8_t *data, size_t len) {
if (packet->getPayloadType() == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin
// client (unknown at this stage)
uint32_t sender_timestamp, sender_sync_since;
memcpy(&sender_timestamp, data, 4);
memcpy(&sender_sync_since, &data[4], 4); // sender's "sync messags SINCE x" timestamp
RoomPermission perm;
data[len] = 0; // ensure null terminator
if (strcmp((char *)&data[8], _prefs.password) == 0) { // check for valid admin password
perm = RoomPermission::ADMIN;
} else {
if (strcmp((char *)&data[8], _prefs.guest_password) == 0) { // check the room/public password
perm = RoomPermission::GUEST;
} else if (_prefs.allow_read_only) {
perm = RoomPermission::READ_ONLY;
} else {
MESH_DEBUG_PRINTLN("Incorrect room password");
return; // no response. Client will timeout
}
}
auto client = putClient(sender); // add to known clients (if not already known)
if (sender_timestamp <= client->last_timestamp) {
MESH_DEBUG_PRINTLN("possible replay attack!");
return;
}
MESH_DEBUG_PRINTLN("Login success!");
client->permission = perm;
client->last_timestamp = sender_timestamp;
client->sync_since = sender_sync_since;
client->pending_ack = 0;
client->push_failures = 0;
memcpy(client->secret, secret, PUB_KEY_SIZE);
uint32_t now = getRTCClock()->getCurrentTime();
client->last_activity = now;
now = getRTCClock()->getCurrentTimeUnique();
memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
// TODO: maybe reply with count of messages waiting to be synced for THIS client?
reply_data[4] = RESP_SERVER_LOGIN_OK;
reply_data[5] = (CLIENT_KEEP_ALIVE_SECS >> 4); // NEW: recommended keep-alive interval (secs / 16)
reply_data[6] = (perm == RoomPermission::ADMIN ? 1 : (perm == RoomPermission::GUEST ? 0 : 2));
reply_data[7] = getUnsyncedCount(client); // NEW
memcpy(&reply_data[8], "OK", 2); // REVISIT: not really needed
next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS); // delay next push, give RESPONSE packet time to arrive first
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet *path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, 8 + 2);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet *reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 8 + 2);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
}
}
int MyMesh::searchPeersByHash(const uint8_t *hash) {
int n = 0;
for (int i = 0; i < num_clients; i++) {
if (known_clients[i].id.isHashMatch(hash)) {
matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
}
}
return n;
}
void MyMesh::getPeerSharedSecret(uint8_t *dest_secret, int peer_idx) {
int i = matching_peer_indexes[peer_idx];
if (i >= 0 && i < num_clients) {
// lookup pre-calculated shared_secret
memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
} else {
MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
}
}
void MyMesh::onPeerDataRecv(mesh::Packet *packet, uint8_t type, int sender_idx, const uint8_t *secret,
uint8_t *data, size_t len) {
int i = matching_peer_indexes[sender_idx];
if (i < 0 || i >= num_clients) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
return;
}
auto client = &known_clients[i];
if (type == PAYLOAD_TYPE_TXT_MSG && len > 5) { // a CLI command or new Post
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
uint flags = (data[4] >> 2); // message attempt number, and other flags
if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported command flags received: flags=%02x", (uint32_t)flags);
} else if (sender_timestamp >= client->last_timestamp) { // prevent replay attacks, but send Acks for retries
bool is_retry = (sender_timestamp == client->last_timestamp);
client->last_timestamp = sender_timestamp;
uint32_t now = getRTCClock()->getCurrentTimeUnique();
client->last_activity = now;
client->push_failures = 0; // reset so push can resume (if prev failed)
// len can be > original length, but 'text' will be padded with zeroes
data[len] = 0; // need to make a C string again, with null terminator
uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove to
// sender that we got it
mesh::Utils::sha256((uint8_t *)&ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key,
PUB_KEY_SIZE);
uint8_t temp[166];
bool send_ack;
if (flags == TXT_TYPE_CLI_DATA) {
if (client->permission == RoomPermission::ADMIN) {
if (is_retry) {
temp[5] = 0; // no reply
} else {
handleCommand(sender_timestamp, (char *)&data[5], (char *)&temp[5]);
temp[4] = (TXT_TYPE_CLI_DATA << 2); // attempt and flags, (NOTE: legacy was: TXT_TYPE_PLAIN)
}
send_ack = false;
} else {
temp[5] = 0; // no reply
send_ack = false; // and no ACK... user shoudn't be sending these
}
} else { // TXT_TYPE_PLAIN
if (client->permission == RoomPermission::READ_ONLY) {
temp[5] = 0; // no reply
send_ack = false; // no ACK
} else {
if (!is_retry) {
addPost(client, (const char *)&data[5]);
}
temp[5] = 0; // no reply (ACK is enough)
send_ack = true;
}
}
uint32_t delay_millis;
if (send_ack) {
if (client->out_path_len < 0) {
mesh::Packet *ack = createAck(ack_hash);
if (ack) sendFlood(ack, TXT_ACK_DELAY);
delay_millis = TXT_ACK_DELAY + REPLY_DELAY_MILLIS;
} else {
uint32_t d = TXT_ACK_DELAY;
if (getExtraAckTransmitCount() > 0) {
mesh::Packet *a1 = createMultiAck(ack_hash, 1);
if (a1) sendDirect(a1, client->out_path, client->out_path_len, d);
d += 300;
}
mesh::Packet *a2 = createAck(ack_hash);
if (a2) sendDirect(a2, client->out_path, client->out_path_len, d);
delay_millis = d + REPLY_DELAY_MILLIS;
}
} else {
delay_millis = 0;
}
int text_len = strlen((char *)&temp[5]);
if (text_len > 0) {
if (now == sender_timestamp) {
// WORKAROUND: the two timestamps need to be different, in the CLI view
now++;
}
memcpy(temp, &now, 4); // mostly an extra blob to help make packet_hash unique
// calc expected ACK reply
// mesh::Utils::sha256((uint8_t *)&expected_ack_crc, 4, temp, 5 + text_len, self_id.pub_key,
// PUB_KEY_SIZE);
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply, delay_millis + SERVER_RESPONSE_DELAY);
} else {
sendDirect(reply, client->out_path, client->out_path_len, delay_millis + SERVER_RESPONSE_DELAY);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
} else if (type == PAYLOAD_TYPE_REQ && len >= 5) {
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
if (sender_timestamp < client->last_timestamp) { // prevent replay attacks
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
} else {
client->last_timestamp = sender_timestamp;
uint32_t now = getRTCClock()->getCurrentTime();
client->last_activity = now; // <-- THIS will keep client connection alive
client->push_failures = 0; // reset so push can resume (if prev failed)
if (data[4] == REQ_TYPE_KEEP_ALIVE && packet->isRouteDirect()) { // request type
uint32_t forceSince = 0;
if (len >= 9) { // optional - last post_timestamp client received
memcpy(&forceSince, &data[5], 4); // NOTE: this may be 0, if part of decrypted PADDING!
} else {
memcpy(&data[5], &forceSince, 4); // make sure there are zeroes in payload (for ack_hash calc below)
}
if (forceSince > 0) {
client->sync_since = forceSince; // force-update the 'sync since'
}
client->pending_ack = 0;
// TODO: Throttle KEEP_ALIVE requests!
// if client sends too quickly, evict()
// RULE: only send keep_alive response DIRECT!
if (client->out_path_len >= 0) {
uint32_t ack_hash; // calc ACK to prove to sender that we got request
mesh::Utils::sha256((uint8_t *)&ack_hash, 4, data, 9, client->id.pub_key, PUB_KEY_SIZE);
auto reply = createAck(ack_hash);
if (reply) {
reply->payload[reply->payload_len++] = getUnsyncedCount(client); // NEW: add unsynced counter to end of ACK packet
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
}
}
} else {
int reply_len = handleRequest(client, sender_timestamp, &data[4], len - 4);
if (reply_len > 0) { // valid command
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet *path = createPathReturn(client->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet *reply = createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
}
}
}
}
}
bool MyMesh::onPeerPathRecv(mesh::Packet *packet, int sender_idx, const uint8_t *secret, uint8_t *path,
uint8_t path_len, uint8_t extra_type, uint8_t *extra, uint8_t extra_len) {
// TODO: prevent replay attacks
int i = matching_peer_indexes[sender_idx];
if (i >= 0 && i < num_clients) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t)path_len);
auto client = &known_clients[i];
memcpy(client->out_path, path, client->out_path_len = path_len); // store a copy of path, for sendDirect()
} else {
MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
}
if (extra_type == PAYLOAD_TYPE_ACK && extra_len >= 4) {
// also got an encoded ACK!
processAck(extra);
}
// NOTE: no reciprocal path send!!
return false;
}
void MyMesh::onAckRecv(mesh::Packet *packet, uint32_t ack_crc) {
if (processAck((uint8_t *)&ack_crc)) {
packet->markDoNotRetransmit(); // ACK was for this node, so don't retransmit
}
}
MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondClock &ms, mesh::RNG &rng,
mesh::RTCClock &rtc, mesh::MeshTables &tables)
: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
_cli(board, rtc, &_prefs, this), telemetry(MAX_PACKET_PAYLOAD - 4) {
next_local_advert = next_flood_advert = 0;
_logging = false;
set_radio_at = revert_radio_at = 0;
// defaults
memset(&_prefs, 0, sizeof(_prefs));
_prefs.airtime_factor = 1.0; // one half
_prefs.rx_delay_base = 0.0f; // off by default, was 10.0
_prefs.tx_delay_factor = 0.5f; // was 0.25f;
StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
_prefs.node_lat = ADVERT_LAT;
_prefs.node_lon = ADVERT_LON;
StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
_prefs.freq = LORA_FREQ;
_prefs.sf = LORA_SF;
_prefs.bw = LORA_BW;
_prefs.cr = LORA_CR;
_prefs.tx_power_dbm = LORA_TX_POWER;
_prefs.disable_fwd = 1;
_prefs.advert_interval = 1; // default to 2 minutes for NEW installs
_prefs.flood_advert_interval = 12; // 12 hours
_prefs.flood_max = 64;
_prefs.interference_threshold = 0; // disabled
#ifdef ROOM_PASSWORD
StrHelper::strncpy(_prefs.guest_password, ROOM_PASSWORD, sizeof(_prefs.guest_password));
#endif
num_clients = 0;
next_post_idx = 0;
next_client_idx = 0;
next_push = 0;
memset(posts, 0, sizeof(posts));
_num_posted = _num_post_pushes = 0;
}
void MyMesh::begin(FILESYSTEM *fs) {
mesh::Mesh::begin();
_fs = fs;
// load persisted prefs
_cli.loadPrefs(_fs);
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
radio_set_tx_power(_prefs.tx_power_dbm);
updateAdvertTimer();
updateFloodAdvertTimer();
}
void MyMesh::applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) {
set_radio_at = futureMillis(2000); // give CLI reply some time to be sent back, before applying temp radio params
pending_freq = freq;
pending_bw = bw;
pending_sf = sf;
pending_cr = cr;
revert_radio_at = futureMillis(2000 + timeout_mins * 60 * 1000); // schedule when to revert radio params
}
bool MyMesh::formatFileSystem() {
#if defined(NRF52_PLATFORM)
return InternalFS.format();
#elif defined(RP2040_PLATFORM)
return LittleFS.format();
#elif defined(ESP32)
return SPIFFS.format();
#else
#error "need to implement file system erase"
return false;
#endif
}
void MyMesh::sendSelfAdvertisement(int delay_millis) {
mesh::Packet *pkt = createSelfAdvert();
if (pkt) {
sendFlood(pkt, delay_millis);
} else {
MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
}
}
void MyMesh::updateAdvertTimer() {
if (_prefs.advert_interval > 0) { // schedule local advert timer
next_local_advert = futureMillis((uint32_t)_prefs.advert_interval * 2 * 60 * 1000);
} else {
next_local_advert = 0; // stop the timer
}
}
void MyMesh::updateFloodAdvertTimer() {
if (_prefs.flood_advert_interval > 0) { // schedule flood advert timer
next_flood_advert = futureMillis(((uint32_t)_prefs.flood_advert_interval) * 60 * 60 * 1000);
} else {
next_flood_advert = 0; // stop the timer
}
}
void MyMesh::dumpLogFile() {
#if defined(RP2040_PLATFORM)
File f = _fs->open(PACKET_LOG_FILE, "r");
#else
File f = _fs->open(PACKET_LOG_FILE);
#endif
if (f) {
while (f.available()) {
int c = f.read();
if (c < 0) break;
Serial.print((char)c);
}
f.close();
}
}
void MyMesh::setTxPower(uint8_t power_dbm) {
radio_set_tx_power(power_dbm);
}
void MyMesh::saveIdentity(const mesh::LocalIdentity &new_id) {
self_id = new_id;
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
IdentityStore store(*_fs, "");
#elif defined(ESP32)
IdentityStore store(*_fs, "/identity");
#elif defined(RP2040_PLATFORM)
IdentityStore store(*_fs, "/identity");
#else
#error "need to define saveIdentity()"
#endif
store.save("_main", self_id);
}
void MyMesh::clearStats() {
radio_driver.resetStats();
resetStats();
((SimpleMeshTables *)getTables())->resetStats();
}
void MyMesh::handleCommand(uint32_t sender_timestamp, char *command, char *reply) {
while (*command == ' ')
command++; // skip leading spaces
if (strlen(command) > 4 && command[2] == '|') { // optional prefix (for companion radio CLI)
memcpy(reply, command, 3); // reflect the prefix back
reply += 3;
command += 3;
}
_cli.handleCommand(sender_timestamp, command, reply); // common CLI commands
}
void MyMesh::loop() {
mesh::Mesh::loop();
if (millisHasNowPassed(next_push) && num_clients > 0) {
// check for ACK timeouts
for (int i = 0; i < num_clients; i++) {
auto c = &known_clients[i];
if (c->pending_ack && millisHasNowPassed(c->ack_timeout)) {
c->push_failures++;
c->pending_ack = 0; // reset (TODO: keep prev expected_ack's in a list, incase they arrive LATER, after we retry)
MESH_DEBUG_PRINTLN("pending ACK timed out: push_failures: %d", (uint32_t)c->push_failures);
}
}
// check next Round-Robin client, and sync next new post
auto client = &known_clients[next_client_idx];
bool did_push = false;
if (client->pending_ack == 0 && client->last_activity != 0 &&
client->push_failures < 3) { // not already waiting for ACK, AND not evicted, AND retries not max
MESH_DEBUG_PRINTLN("loop - checking for client %02X", (uint32_t)client->id.pub_key[0]);
uint32_t now = getRTCClock()->getCurrentTime();
for (int k = 0, idx = next_post_idx; k < MAX_UNSYNCED_POSTS; k++) {
auto p = &posts[idx];
if (now >= p->post_timestamp + POST_SYNC_DELAY_SECS &&
p->post_timestamp > client->sync_since // is new post for this Client?
&& !p->author.matches(client->id)) { // don't push posts to the author
// push this post to Client, then wait for ACK
pushPostToClient(client, *p);
did_push = true;
MESH_DEBUG_PRINTLN("loop - pushed to client %02X: %s", (uint32_t)client->id.pub_key[0], p->text);
break;
}
idx = (idx + 1) % MAX_UNSYNCED_POSTS; // wrap to start of cyclic queue
}
} else {
MESH_DEBUG_PRINTLN("loop - skipping busy (or evicted) client %02X", (uint32_t)client->id.pub_key[0]);
}
next_client_idx = (next_client_idx + 1) % num_clients; // round robin polling for each client
if (did_push) {
next_push = futureMillis(SYNC_PUSH_INTERVAL);
} else {
// were no unsynced posts for curr client, so proccess next client much quicker! (in next loop())
next_push = futureMillis(SYNC_PUSH_INTERVAL / 8);
}
}
if (next_flood_advert && millisHasNowPassed(next_flood_advert)) {
mesh::Packet *pkt = createSelfAdvert();
if (pkt) sendFlood(pkt);
updateFloodAdvertTimer(); // schedule next flood advert
updateAdvertTimer(); // also schedule local advert (so they don't overlap)
} else if (next_local_advert && millisHasNowPassed(next_local_advert)) {
mesh::Packet *pkt = createSelfAdvert();
if (pkt) sendZeroHop(pkt);
updateAdvertTimer(); // schedule next local advert
}
if (set_radio_at && millisHasNowPassed(set_radio_at)) { // apply pending (temporary) radio params
set_radio_at = 0; // clear timer
radio_set_params(pending_freq, pending_bw, pending_sf, pending_cr);
MESH_DEBUG_PRINTLN("Temp radio params");
}
if (revert_radio_at && millisHasNowPassed(revert_radio_at)) { // revert radio params to orig
revert_radio_at = 0; // clear timer
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
MESH_DEBUG_PRINTLN("Radio params restored");
}
// TODO: periodically check for OLD/inactive entries in known_clients[], and evict
}

220
examples/simple_room_server/MyMesh.h Normal file
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@ -0,0 +1,220 @@
#pragma once
#include <Arduino.h> // needed for PlatformIO
#include <Mesh.h>
#if defined(NRF52_PLATFORM)
#include <InternalFileSystem.h>
#elif defined(RP2040_PLATFORM)
#include <LittleFS.h>
#elif defined(ESP32)
#include <SPIFFS.h>
#endif
#include <helpers/ArduinoHelpers.h>
#include <helpers/StaticPoolPacketManager.h>
#include <helpers/SimpleMeshTables.h>
#include <helpers/IdentityStore.h>
#include <helpers/AdvertDataHelpers.h>
#include <helpers/TxtDataHelpers.h>
#include <helpers/CommonCLI.h>
#include <RTClib.h>
#include <target.h>
/* ------------------------------ Config -------------------------------- */
#ifndef FIRMWARE_BUILD_DATE
#define FIRMWARE_BUILD_DATE "1 Sep 2025"
#endif
#ifndef FIRMWARE_VERSION
#define FIRMWARE_VERSION "v1.8.1"
#endif
#ifndef LORA_FREQ
#define LORA_FREQ 915.0
#endif
#ifndef LORA_BW
#define LORA_BW 250
#endif
#ifndef LORA_SF
#define LORA_SF 10
#endif
#ifndef LORA_CR
#define LORA_CR 5
#endif
#ifndef LORA_TX_POWER
#define LORA_TX_POWER 20
#endif
#ifndef ADVERT_NAME
#define ADVERT_NAME "Test BBS"
#endif
#ifndef ADVERT_LAT
#define ADVERT_LAT 0.0
#endif
#ifndef ADVERT_LON
#define ADVERT_LON 0.0
#endif
#ifndef ADMIN_PASSWORD
#define ADMIN_PASSWORD "password"
#endif
#ifndef MAX_CLIENTS
#define MAX_CLIENTS 32
#endif
#ifndef MAX_UNSYNCED_POSTS
#define MAX_UNSYNCED_POSTS 32
#endif
#ifndef SERVER_RESPONSE_DELAY
#define SERVER_RESPONSE_DELAY 300
#endif
#ifndef TXT_ACK_DELAY
#define TXT_ACK_DELAY 200
#endif
#define FIRMWARE_ROLE "room_server"
#define PACKET_LOG_FILE "/packet_log"
enum RoomPermission {
ADMIN,
GUEST,
READ_ONLY
};
struct ClientInfo {
mesh::Identity id;
uint32_t last_timestamp; // by THEIR clock
uint32_t last_activity; // by OUR clock
uint32_t sync_since; // sync messages SINCE this timestamp (by OUR clock)
uint32_t pending_ack;
uint32_t push_post_timestamp;
unsigned long ack_timeout;
RoomPermission permission;
uint8_t push_failures;
uint8_t secret[PUB_KEY_SIZE];
int out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
};
#define MAX_POST_TEXT_LEN (160-9)
struct PostInfo {
mesh::Identity author;
uint32_t post_timestamp; // by OUR clock
char text[MAX_POST_TEXT_LEN+1];
};
class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
FILESYSTEM* _fs;
unsigned long next_local_advert, next_flood_advert;
bool _logging;
NodePrefs _prefs;
CommonCLI _cli;
uint8_t reply_data[MAX_PACKET_PAYLOAD];
int num_clients;
ClientInfo known_clients[MAX_CLIENTS];
unsigned long next_push;
uint16_t _num_posted, _num_post_pushes;
int next_client_idx; // for round-robin polling
int next_post_idx;
PostInfo posts[MAX_UNSYNCED_POSTS]; // cyclic queue
CayenneLPP telemetry;
unsigned long set_radio_at, revert_radio_at;
float pending_freq;
float pending_bw;
uint8_t pending_sf;
uint8_t pending_cr;
int matching_peer_indexes[MAX_CLIENTS];
ClientInfo* putClient(const mesh::Identity& id);
void evict(ClientInfo* client);
void addPost(ClientInfo* client, const char* postData);
void pushPostToClient(ClientInfo* client, PostInfo& post);
uint8_t getUnsyncedCount(ClientInfo* client);
bool processAck(const uint8_t *data);
mesh::Packet* createSelfAdvert();
File openAppend(const char* fname);
int handleRequest(ClientInfo* sender, uint32_t sender_timestamp, uint8_t* payload, size_t payload_len);
protected:
float getAirtimeBudgetFactor() const override {
return _prefs.airtime_factor;
}
void logRxRaw(float snr, float rssi, const uint8_t raw[], int len) override;
void logRx(mesh::Packet* pkt, int len, float score) override;
void logTx(mesh::Packet* pkt, int len) override;
void logTxFail(mesh::Packet* pkt, int len) override;
int calcRxDelay(float score, uint32_t air_time) const override;
const char* getLogDateTime() override;
uint32_t getRetransmitDelay(const mesh::Packet* packet) override;
uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override;
int getInterferenceThreshold() const override {
return _prefs.interference_threshold;
}
int getAGCResetInterval() const override {
return ((int)_prefs.agc_reset_interval) * 4000; // milliseconds
}
uint8_t getExtraAckTransmitCount() const override {
return _prefs.multi_acks;
}
bool allowPacketForward(const mesh::Packet* packet) override;
void onAnonDataRecv(mesh::Packet* packet, const uint8_t* secret, const mesh::Identity& sender, uint8_t* data, size_t len) override;
int searchPeersByHash(const uint8_t* hash) override ;
void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override;
void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override;
bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override;
void onAckRecv(mesh::Packet* packet, uint32_t ack_crc) override;
public:
MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables);
void begin(FILESYSTEM* fs);
const char* getFirmwareVer() override { return FIRMWARE_VERSION; }
const char* getBuildDate() override { return FIRMWARE_BUILD_DATE; }
const char* getRole() override { return FIRMWARE_ROLE; }
const char* getNodeName() { return _prefs.node_name; }
NodePrefs* getNodePrefs() {
return &_prefs;
}
void savePrefs() override {
_cli.savePrefs(_fs);
}
void applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) override;
bool formatFileSystem() override;
void sendSelfAdvertisement(int delay_millis) override;
void updateAdvertTimer() override;
void updateFloodAdvertTimer() override;
void setLoggingOn(bool enable) override { _logging = enable; }
void eraseLogFile() override {
_fs->remove(PACKET_LOG_FILE);
}
void dumpLogFile() override;
void setTxPower(uint8_t power_dbm) override;
void formatNeighborsReply(char *reply) override {
strcpy(reply, "not supported");
}
mesh::LocalIdentity& getSelfId() override { return self_id; }
void saveIdentity(const mesh::LocalIdentity& new_id) override;
void clearStats() override;
void handleCommand(uint32_t sender_timestamp, char* command, char* reply);
void loop();
};

971
examples/simple_room_server/main.cpp
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@ -1,979 +1,13 @@
#include <Arduino.h> // needed for PlatformIO
#include <Mesh.h>
#if defined(NRF52_PLATFORM)
#include <InternalFileSystem.h>
#elif defined(RP2040_PLATFORM)
#include <LittleFS.h>
#elif defined(ESP32)
#include <SPIFFS.h>
#endif
#include <helpers/ArduinoHelpers.h>
#include <helpers/StaticPoolPacketManager.h>
#include <helpers/SimpleMeshTables.h>
#include <helpers/IdentityStore.h>
#include <helpers/AdvertDataHelpers.h>
#include <helpers/TxtDataHelpers.h>
#include <helpers/CommonCLI.h>
#include <RTClib.h>
#include <target.h>
/* ------------------------------ Config -------------------------------- */
#ifndef FIRMWARE_BUILD_DATE
#define FIRMWARE_BUILD_DATE "1 Sep 2025"
#endif
#ifndef FIRMWARE_VERSION
#define FIRMWARE_VERSION "v1.8.1"
#endif
#ifndef LORA_FREQ
#define LORA_FREQ 915.0
#endif
#ifndef LORA_BW
#define LORA_BW 250
#endif
#ifndef LORA_SF
#define LORA_SF 10
#endif
#ifndef LORA_CR
#define LORA_CR 5
#endif
#ifndef LORA_TX_POWER
#define LORA_TX_POWER 20
#endif
#ifndef ADVERT_NAME
#define ADVERT_NAME "Test BBS"
#endif
#ifndef ADVERT_LAT
#define ADVERT_LAT 0.0
#endif
#ifndef ADVERT_LON
#define ADVERT_LON 0.0
#endif
#ifndef ADMIN_PASSWORD
#define ADMIN_PASSWORD "password"
#endif
#ifndef MAX_CLIENTS
#define MAX_CLIENTS 32
#endif
#ifndef MAX_UNSYNCED_POSTS
#define MAX_UNSYNCED_POSTS 32
#endif
#ifndef SERVER_RESPONSE_DELAY
#define SERVER_RESPONSE_DELAY 300
#endif
#ifndef TXT_ACK_DELAY
#define TXT_ACK_DELAY 200
#endif
#include "MyMesh.h"
#ifdef DISPLAY_CLASS
#include "UITask.h"
static UITask ui_task(display);
#endif
#define FIRMWARE_ROLE "room_server"
#define PACKET_LOG_FILE "/packet_log"
/* ------------------------------ Code -------------------------------- */
enum RoomPermission {
ADMIN,
GUEST,
READ_ONLY
};
struct ClientInfo {
mesh::Identity id;
uint32_t last_timestamp; // by THEIR clock
uint32_t last_activity; // by OUR clock
uint32_t sync_since; // sync messages SINCE this timestamp (by OUR clock)
uint32_t pending_ack;
uint32_t push_post_timestamp;
unsigned long ack_timeout;
RoomPermission permission;
uint8_t push_failures;
uint8_t secret[PUB_KEY_SIZE];
int out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
};
#define MAX_POST_TEXT_LEN (160-9)
struct PostInfo {
mesh::Identity author;
uint32_t post_timestamp; // by OUR clock
char text[MAX_POST_TEXT_LEN+1];
};
#define REPLY_DELAY_MILLIS 1500
#define PUSH_NOTIFY_DELAY_MILLIS 2000
#define SYNC_PUSH_INTERVAL 1200
#define PUSH_ACK_TIMEOUT_FLOOD 12000
#define PUSH_TIMEOUT_BASE 4000
#define PUSH_ACK_TIMEOUT_FACTOR 2000
#define POST_SYNC_DELAY_SECS 6
#define CLIENT_KEEP_ALIVE_SECS 0 // Now Disabled (was 128)
#define REQ_TYPE_GET_STATUS 0x01 // same as _GET_STATS
#define REQ_TYPE_KEEP_ALIVE 0x02
#define REQ_TYPE_GET_TELEMETRY_DATA 0x03
#define RESP_SERVER_LOGIN_OK 0 // response to ANON_REQ
struct ServerStats {
uint16_t batt_milli_volts;
uint16_t curr_tx_queue_len;
int16_t noise_floor;
int16_t last_rssi;
uint32_t n_packets_recv;
uint32_t n_packets_sent;
uint32_t total_air_time_secs;
uint32_t total_up_time_secs;
uint32_t n_sent_flood, n_sent_direct;
uint32_t n_recv_flood, n_recv_direct;
uint16_t err_events; // was 'n_full_events'
int16_t last_snr; // x 4
uint16_t n_direct_dups, n_flood_dups;
uint16_t n_posted, n_post_push;
};
class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
FILESYSTEM* _fs;
unsigned long next_local_advert, next_flood_advert;
bool _logging;
NodePrefs _prefs;
CommonCLI _cli;
uint8_t reply_data[MAX_PACKET_PAYLOAD];
int num_clients;
ClientInfo known_clients[MAX_CLIENTS];
unsigned long next_push;
uint16_t _num_posted, _num_post_pushes;
int next_client_idx; // for round-robin polling
int next_post_idx;
PostInfo posts[MAX_UNSYNCED_POSTS]; // cyclic queue
CayenneLPP telemetry;
unsigned long set_radio_at, revert_radio_at;
float pending_freq;
float pending_bw;
uint8_t pending_sf;
uint8_t pending_cr;
ClientInfo* putClient(const mesh::Identity& id) {
for (int i = 0; i < num_clients; i++) {
if (id.matches(known_clients[i].id)) return &known_clients[i]; // already known
}
ClientInfo* newClient;
if (num_clients < MAX_CLIENTS) {
newClient = &known_clients[num_clients++];
} else { // table is currently full
// evict least active client
uint32_t oldest_timestamp = 0xFFFFFFFF;
newClient = &known_clients[0];
for (int i = 0; i < num_clients; i++) {
auto c = &known_clients[i];
if (c->last_activity < oldest_timestamp) {
oldest_timestamp = c->last_activity;
newClient = c;
}
}
}
newClient->id = id;
newClient->out_path_len = -1; // initially out_path is unknown
newClient->last_timestamp = 0;
return newClient;
}
void evict(ClientInfo* client) {
client->last_activity = 0; // this slot will now be re-used (will be oldest)
memset(client->id.pub_key, 0, sizeof(client->id.pub_key));
memset(client->secret, 0, sizeof(client->secret));
client->pending_ack = 0;
}
void addPost(ClientInfo* client, const char* postData) {
// TODO: suggested postData format: <title>/<descrption>
posts[next_post_idx].author = client->id; // add to cyclic queue
StrHelper::strncpy(posts[next_post_idx].text, postData, MAX_POST_TEXT_LEN);
posts[next_post_idx].post_timestamp = getRTCClock()->getCurrentTimeUnique();
next_post_idx = (next_post_idx + 1) % MAX_UNSYNCED_POSTS;
next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS);
_num_posted++; // stats
}
void pushPostToClient(ClientInfo* client, PostInfo& post) {
int len = 0;
memcpy(&reply_data[len], &post.post_timestamp, 4); len += 4; // this is a PAST timestamp... but should be accepted by client
uint8_t attempt;
getRNG()->random(&attempt, 1); // need this for re-tries, so packet hash (and ACK) will be different
reply_data[len++] = (TXT_TYPE_SIGNED_PLAIN << 2) | (attempt & 3); // 'signed' plain text
// encode prefix of post.author.pub_key
memcpy(&reply_data[len], post.author.pub_key, 4); len += 4; // just first 4 bytes
int text_len = strlen(post.text);
memcpy(&reply_data[len], post.text, text_len); len += text_len;
// calc expected ACK reply
mesh::Utils::sha256((uint8_t *)&client->pending_ack, 4, reply_data, len, client->id.pub_key, PUB_KEY_SIZE);
client->push_post_timestamp = post.post_timestamp;
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, client->secret, reply_data, len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply);
client->ack_timeout = futureMillis(PUSH_ACK_TIMEOUT_FLOOD);
} else {
sendDirect(reply, client->out_path, client->out_path_len);
client->ack_timeout = futureMillis(PUSH_TIMEOUT_BASE + PUSH_ACK_TIMEOUT_FACTOR * (client->out_path_len + 1));
}
_num_post_pushes++; // stats
} else {
client->pending_ack = 0;
MESH_DEBUG_PRINTLN("Unable to push post to client");
}
}
uint8_t getUnsyncedCount(ClientInfo* client) {
uint8_t count = 0;
for (int k = 0; k < MAX_UNSYNCED_POSTS; k++) {
if (posts[k].post_timestamp > client->sync_since // is new post for this Client?
&& !posts[k].author.matches(client->id)) { // don't push posts to the author
count++;
}
}
return count;
}
bool processAck(const uint8_t *data) {
for (int i = 0; i < num_clients; i++) {
auto client = &known_clients[i];
if (client->pending_ack && memcmp(data, &client->pending_ack, 4) == 0) { // got an ACK from Client!
client->pending_ack = 0; // clear this, so next push can happen
client->push_failures = 0;
client->sync_since = client->push_post_timestamp; // advance Client's SINCE timestamp, to sync next post
return true;
}
}
return false;
}
mesh::Packet* createSelfAdvert() {
uint8_t app_data[MAX_ADVERT_DATA_SIZE];
uint8_t app_data_len;
{
AdvertDataBuilder builder(ADV_TYPE_ROOM, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
app_data_len = builder.encodeTo(app_data);
}
return createAdvert(self_id, app_data, app_data_len);
}
File openAppend(const char* fname) {
#if defined(NRF52_PLATFORM)
return _fs->open(fname, FILE_O_WRITE);
#elif defined(RP2040_PLATFORM)
return _fs->open(fname, "a");
#else
return _fs->open(fname, "a", true);
#endif
}
int handleRequest(ClientInfo* sender, uint32_t sender_timestamp, uint8_t* payload, size_t payload_len) {
// uint32_t now = getRTCClock()->getCurrentTimeUnique();
// memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
memcpy(reply_data, &sender_timestamp, 4); // reflect sender_timestamp back in response packet (kind of like a 'tag')
switch (payload[0]) {
case REQ_TYPE_GET_STATUS: {
ServerStats stats;
stats.batt_milli_volts = board.getBattMilliVolts();
stats.curr_tx_queue_len = _mgr->getOutboundCount(0xFFFFFFFF);
stats.noise_floor = (int16_t)_radio->getNoiseFloor();
stats.last_rssi = (int16_t) radio_driver.getLastRSSI();
stats.n_packets_recv = radio_driver.getPacketsRecv();
stats.n_packets_sent = radio_driver.getPacketsSent();
stats.total_air_time_secs = getTotalAirTime() / 1000;
stats.total_up_time_secs = _ms->getMillis() / 1000;
stats.n_sent_flood = getNumSentFlood();
stats.n_sent_direct = getNumSentDirect();
stats.n_recv_flood = getNumRecvFlood();
stats.n_recv_direct = getNumRecvDirect();
stats.err_events = _err_flags;
stats.last_snr = (int16_t)(radio_driver.getLastSNR() * 4);
stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
stats.n_posted = _num_posted;
stats.n_post_push = _num_post_pushes;
memcpy(&reply_data[4], &stats, sizeof(stats));
return 4 + sizeof(stats);
}
case REQ_TYPE_GET_TELEMETRY_DATA: {
uint8_t perm_mask = ~(payload[1]); // NEW: first reserved byte (of 4), is now inverse mask to apply to permissions
telemetry.reset();
telemetry.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
// query other sensors -- target specific
sensors.querySensors((sender->permission == RoomPermission::ADMIN ? 0xFF : 0x00) & perm_mask, telemetry);
uint8_t tlen = telemetry.getSize();
memcpy(&reply_data[4], telemetry.getBuffer(), tlen);
return 4 + tlen; // reply_len
}
}
return 0; // unknown command
}
protected:
float getAirtimeBudgetFactor() const override {
return _prefs.airtime_factor;
}
void logRxRaw(float snr, float rssi, const uint8_t raw[], int len) override {
#if MESH_PACKET_LOGGING
Serial.print(getLogDateTime());
Serial.print(" RAW: ");
mesh::Utils::printHex(Serial, raw, len);
Serial.println();
#endif
}
void logRx(mesh::Packet* pkt, int len, float score) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
(int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score*1000));
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
|| pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void logTx(mesh::Packet* pkt, int len) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
|| pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
} else {
f.printf("\n");
}
f.close();
}
}
}
void logTxFail(mesh::Packet* pkt, int len) override {
if (_logging) {
File f = openAppend(PACKET_LOG_FILE);
if (f) {
f.print(getLogDateTime());
f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n",
len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
f.close();
}
}
}
int calcRxDelay(float score, uint32_t air_time) const override {
if (_prefs.rx_delay_base <= 0.0f) return 0;
return (int) ((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
}
const char* getLogDateTime() override {
static char tmp[32];
uint32_t now = getRTCClock()->getCurrentTime();
DateTime dt = DateTime(now);
sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(), dt.year());
return tmp;
}
uint32_t getRetransmitDelay(const mesh::Packet* packet) override {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
return getRNG()->nextInt(0, 6)*t;
}
uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override {
uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
return getRNG()->nextInt(0, 6)*t;
}
int getInterferenceThreshold() const override {
return _prefs.interference_threshold;
}
int getAGCResetInterval() const override {
return ((int)_prefs.agc_reset_interval) * 4000; // milliseconds
}
uint8_t getExtraAckTransmitCount() const override {
return _prefs.multi_acks;
}
bool allowPacketForward(const mesh::Packet* packet) override {
if (_prefs.disable_fwd) return false;
if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
return true;
}
void onAnonDataRecv(mesh::Packet* packet, const uint8_t* secret, const mesh::Identity& sender, uint8_t* data, size_t len) override {
if (packet->getPayloadType() == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin client (unknown at this stage)
uint32_t sender_timestamp, sender_sync_since;
memcpy(&sender_timestamp, data, 4);
memcpy(&sender_sync_since, &data[4], 4); // sender's "sync messags SINCE x" timestamp
RoomPermission perm;
data[len] = 0; // ensure null terminator
if (strcmp((char *) &data[8], _prefs.password) == 0) { // check for valid admin password
perm = RoomPermission::ADMIN;
} else {
if (strcmp((char *) &data[8], _prefs.guest_password) == 0) { // check the room/public password
perm = RoomPermission::GUEST;
} else if (_prefs.allow_read_only) {
perm = RoomPermission::READ_ONLY;
} else {
MESH_DEBUG_PRINTLN("Incorrect room password");
return; // no response. Client will timeout
}
}
auto client = putClient(sender); // add to known clients (if not already known)
if (sender_timestamp <= client->last_timestamp) {
MESH_DEBUG_PRINTLN("possible replay attack!");
return;
}
MESH_DEBUG_PRINTLN("Login success!");
client->permission = perm;
client->last_timestamp = sender_timestamp;
client->sync_since = sender_sync_since;
client->pending_ack = 0;
client->push_failures = 0;
memcpy(client->secret, secret, PUB_KEY_SIZE);
uint32_t now = getRTCClock()->getCurrentTime();
client->last_activity = now;
now = getRTCClock()->getCurrentTimeUnique();
memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
// TODO: maybe reply with count of messages waiting to be synced for THIS client?
reply_data[4] = RESP_SERVER_LOGIN_OK;
reply_data[5] = (CLIENT_KEEP_ALIVE_SECS >> 4); // NEW: recommended keep-alive interval (secs / 16)
reply_data[6] = (perm == RoomPermission::ADMIN ? 1 : (perm == RoomPermission::GUEST ? 0 : 2));
reply_data[7] = getUnsyncedCount(client); // NEW
memcpy(&reply_data[8], "OK", 2); // REVISIT: not really needed
next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS); // delay next push, give RESPONSE packet time to arrive first
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, 8 + 2);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 8 + 2);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
}
}
int matching_peer_indexes[MAX_CLIENTS];
int searchPeersByHash(const uint8_t* hash) override {
int n = 0;
for (int i = 0; i < num_clients; i++) {
if (known_clients[i].id.isHashMatch(hash)) {
matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
}
}
return n;
}
void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override {
int i = matching_peer_indexes[peer_idx];
if (i >= 0 && i < num_clients) {
// lookup pre-calculated shared_secret
memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
} else {
MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
}
}
void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override {
int i = matching_peer_indexes[sender_idx];
if (i < 0 || i >= num_clients) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
return;
}
auto client = &known_clients[i];
if (type == PAYLOAD_TYPE_TXT_MSG && len > 5) { // a CLI command or new Post
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
uint flags = (data[4] >> 2); // message attempt number, and other flags
if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported command flags received: flags=%02x", (uint32_t)flags);
} else if (sender_timestamp >= client->last_timestamp) { // prevent replay attacks, but send Acks for retries
bool is_retry = (sender_timestamp == client->last_timestamp);
client->last_timestamp = sender_timestamp;
uint32_t now = getRTCClock()->getCurrentTimeUnique();
client->last_activity = now;
client->push_failures = 0; // reset so push can resume (if prev failed)
// len can be > original length, but 'text' will be padded with zeroes
data[len] = 0; // need to make a C string again, with null terminator
uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key, PUB_KEY_SIZE);
uint8_t temp[166];
bool send_ack;
if (flags == TXT_TYPE_CLI_DATA) {
if (client->permission == RoomPermission::ADMIN) {
if (is_retry) {
temp[5] = 0; // no reply
} else {
handleCommand(sender_timestamp, (char *) &data[5], (char *) &temp[5]);
temp[4] = (TXT_TYPE_CLI_DATA << 2); // attempt and flags, (NOTE: legacy was: TXT_TYPE_PLAIN)
}
send_ack = false;
} else {
temp[5] = 0; // no reply
send_ack = false; // and no ACK... user shoudn't be sending these
}
} else { // TXT_TYPE_PLAIN
if (client->permission == RoomPermission::READ_ONLY) {
temp[5] = 0; // no reply
send_ack = false; // no ACK
} else {
if (!is_retry) {
addPost(client, (const char *) &data[5]);
}
temp[5] = 0; // no reply (ACK is enough)
send_ack = true;
}
}
uint32_t delay_millis;
if (send_ack) {
if (client->out_path_len < 0) {
mesh::Packet* ack = createAck(ack_hash);
if (ack) sendFlood(ack, TXT_ACK_DELAY);
delay_millis = TXT_ACK_DELAY + REPLY_DELAY_MILLIS;
} else {
uint32_t d = TXT_ACK_DELAY;
if (getExtraAckTransmitCount() > 0) {
mesh::Packet* a1 = createMultiAck(ack_hash, 1);
if (a1) sendDirect(a1, client->out_path, client->out_path_len, d);
d += 300;
}
mesh::Packet* a2 = createAck(ack_hash);
if (a2) sendDirect(a2, client->out_path, client->out_path_len, d);
delay_millis = d + REPLY_DELAY_MILLIS;
}
} else {
delay_millis = 0;
}
int text_len = strlen((char *) &temp[5]);
if (text_len > 0) {
if (now == sender_timestamp) {
// WORKAROUND: the two timestamps need to be different, in the CLI view
now++;
}
memcpy(temp, &now, 4); // mostly an extra blob to help make packet_hash unique
// calc expected ACK reply
//mesh::Utils::sha256((uint8_t *)&expected_ack_crc, 4, temp, 5 + text_len, self_id.pub_key, PUB_KEY_SIZE);
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
if (reply) {
if (client->out_path_len < 0) {
sendFlood(reply, delay_millis + SERVER_RESPONSE_DELAY);
} else {
sendDirect(reply, client->out_path, client->out_path_len, delay_millis + SERVER_RESPONSE_DELAY);
}
}
}
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
} else if (type == PAYLOAD_TYPE_REQ && len >= 5) {
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
if (sender_timestamp < client->last_timestamp) { // prevent replay attacks
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
} else {
client->last_timestamp = sender_timestamp;
uint32_t now = getRTCClock()->getCurrentTime();
client->last_activity = now; // <-- THIS will keep client connection alive
client->push_failures = 0; // reset so push can resume (if prev failed)
if (data[4] == REQ_TYPE_KEEP_ALIVE && packet->isRouteDirect()) { // request type
uint32_t forceSince = 0;
if (len >= 9) { // optional - last post_timestamp client received
memcpy(&forceSince, &data[5], 4); // NOTE: this may be 0, if part of decrypted PADDING!
} else {
memcpy(&data[5], &forceSince, 4); // make sure there are zeroes in payload (for ack_hash calc below)
}
if (forceSince > 0) {
client->sync_since = forceSince; // force-update the 'sync since'
}
client->pending_ack = 0;
// TODO: Throttle KEEP_ALIVE requests!
// if client sends too quickly, evict()
// RULE: only send keep_alive response DIRECT!
if (client->out_path_len >= 0) {
uint32_t ack_hash; // calc ACK to prove to sender that we got request
mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 9, client->id.pub_key, PUB_KEY_SIZE);
auto reply = createAck(ack_hash);
if (reply) {
reply->payload[reply->payload_len++] = getUnsyncedCount(client); // NEW: add unsynced counter to end of ACK packet
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
}
}
} else {
int reply_len = handleRequest(client, sender_timestamp, &data[4], len - 4);
if (reply_len > 0) { // valid command
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(client->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
if (reply) {
if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
}
}
}
}
}
}
}
bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override {
// TODO: prevent replay attacks
int i = matching_peer_indexes[sender_idx];
if (i >= 0 && i < num_clients) { // get from our known_clients table (sender SHOULD already be known in this context)
MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t) path_len);
auto client = &known_clients[i];
memcpy(client->out_path, path, client->out_path_len = path_len); // store a copy of path, for sendDirect()
} else {
MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
}
if (extra_type == PAYLOAD_TYPE_ACK && extra_len >= 4) {
// also got an encoded ACK!
processAck(extra);
}
// NOTE: no reciprocal path send!!
return false;
}
void onAckRecv(mesh::Packet* packet, uint32_t ack_crc) override {
if (processAck((uint8_t *)&ack_crc)) {
packet->markDoNotRetransmit(); // ACK was for this node, so don't retransmit
}
}
public:
MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
_cli(board, rtc, &_prefs, this), telemetry(MAX_PACKET_PAYLOAD - 4)
{
next_local_advert = next_flood_advert = 0;
_logging = false;
set_radio_at = revert_radio_at = 0;
// defaults
memset(&_prefs, 0, sizeof(_prefs));
_prefs.airtime_factor = 1.0; // one half
_prefs.rx_delay_base = 0.0f; // off by default, was 10.0
_prefs.tx_delay_factor = 0.5f; // was 0.25f;
StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
_prefs.node_lat = ADVERT_LAT;
_prefs.node_lon = ADVERT_LON;
StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
_prefs.freq = LORA_FREQ;
_prefs.sf = LORA_SF;
_prefs.bw = LORA_BW;
_prefs.cr = LORA_CR;
_prefs.tx_power_dbm = LORA_TX_POWER;
_prefs.disable_fwd = 1;
_prefs.advert_interval = 1; // default to 2 minutes for NEW installs
_prefs.flood_advert_interval = 12; // 12 hours
_prefs.flood_max = 64;
_prefs.interference_threshold = 0; // disabled
#ifdef ROOM_PASSWORD
StrHelper::strncpy(_prefs.guest_password, ROOM_PASSWORD, sizeof(_prefs.guest_password));
#endif
num_clients = 0;
next_post_idx = 0;
next_client_idx = 0;
next_push = 0;
memset(posts, 0, sizeof(posts));
_num_posted = _num_post_pushes = 0;
}
void begin(FILESYSTEM* fs) {
mesh::Mesh::begin();
_fs = fs;
// load persisted prefs
_cli.loadPrefs(_fs);
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
radio_set_tx_power(_prefs.tx_power_dbm);
updateAdvertTimer();
updateFloodAdvertTimer();
}
const char* getFirmwareVer() override { return FIRMWARE_VERSION; }
const char* getBuildDate() override { return FIRMWARE_BUILD_DATE; }
const char* getRole() override { return FIRMWARE_ROLE; }
const char* getNodeName() { return _prefs.node_name; }
NodePrefs* getNodePrefs() {
return &_prefs;
}
void savePrefs() override {
_cli.savePrefs(_fs);
}
void applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) override {
set_radio_at = futureMillis(2000); // give CLI reply some time to be sent back, before applying temp radio params
pending_freq = freq;
pending_bw = bw;
pending_sf = sf;
pending_cr = cr;
revert_radio_at = futureMillis(2000 + timeout_mins*60*1000); // schedule when to revert radio params
}
bool formatFileSystem() override {
#if defined(NRF52_PLATFORM)
return InternalFS.format();
#elif defined(RP2040_PLATFORM)
return LittleFS.format();
#elif defined(ESP32)
return SPIFFS.format();
#else
#error "need to implement file system erase"
return false;
#endif
}
void sendSelfAdvertisement(int delay_millis) override {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) {
sendFlood(pkt, delay_millis);
} else {
MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
}
}
void updateAdvertTimer() override {
if (_prefs.advert_interval > 0) { // schedule local advert timer
next_local_advert = futureMillis((uint32_t)_prefs.advert_interval * 2 * 60 * 1000);
} else {
next_local_advert = 0; // stop the timer
}
}
void updateFloodAdvertTimer() override {
if (_prefs.flood_advert_interval > 0) { // schedule flood advert timer
next_flood_advert = futureMillis( ((uint32_t)_prefs.flood_advert_interval) * 60 * 60 * 1000);
} else {
next_flood_advert = 0; // stop the timer
}
}
void setLoggingOn(bool enable) override { _logging = enable; }
void eraseLogFile() override {
_fs->remove(PACKET_LOG_FILE);
}
void dumpLogFile() override {
#if defined(RP2040_PLATFORM)
File f = _fs->open(PACKET_LOG_FILE, "r");
#else
File f = _fs->open(PACKET_LOG_FILE);
#endif
if (f) {
while (f.available()) {
int c = f.read();
if (c < 0) break;
Serial.print((char)c);
}
f.close();
}
}
void setTxPower(uint8_t power_dbm) override {
radio_set_tx_power(power_dbm);
}
void formatNeighborsReply(char *reply) override {
strcpy(reply, "not supported");
}
mesh::LocalIdentity& getSelfId() override { return self_id; }
void saveIdentity(const mesh::LocalIdentity& new_id) override {
self_id = new_id;
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
IdentityStore store(*_fs, "");
#elif defined(ESP32)
IdentityStore store(*_fs, "/identity");
#elif defined(RP2040_PLATFORM)
IdentityStore store(*_fs, "/identity");
#else
#error "need to define saveIdentity()"
#endif
store.save("_main", self_id);
}
void clearStats() override {
radio_driver.resetStats();
resetStats();
((SimpleMeshTables *)getTables())->resetStats();
}
void handleCommand(uint32_t sender_timestamp, char* command, char* reply) {
while (*command == ' ') command++; // skip leading spaces
if (strlen(command) > 4 && command[2] == '|') { // optional prefix (for companion radio CLI)
memcpy(reply, command, 3); // reflect the prefix back
reply += 3;
command += 3;
}
_cli.handleCommand(sender_timestamp, command, reply); // common CLI commands
}
void loop() {
mesh::Mesh::loop();
if (millisHasNowPassed(next_push) && num_clients > 0) {
// check for ACK timeouts
for (int i = 0; i < num_clients; i++) {
auto c = &known_clients[i];
if (c->pending_ack && millisHasNowPassed(c->ack_timeout)) {
c->push_failures++;
c->pending_ack = 0; // reset (TODO: keep prev expected_ack's in a list, incase they arrive LATER, after we retry)
MESH_DEBUG_PRINTLN("pending ACK timed out: push_failures: %d", (uint32_t)c->push_failures);
}
}
// check next Round-Robin client, and sync next new post
auto client = &known_clients[next_client_idx];
bool did_push = false;
if (client->pending_ack == 0 && client->last_activity != 0 && client->push_failures < 3) { // not already waiting for ACK, AND not evicted, AND retries not max
MESH_DEBUG_PRINTLN("loop - checking for client %02X", (uint32_t) client->id.pub_key[0]);
uint32_t now = getRTCClock()->getCurrentTime();
for (int k = 0, idx = next_post_idx; k < MAX_UNSYNCED_POSTS; k++) {
auto p = &posts[idx];
if (now >= p->post_timestamp + POST_SYNC_DELAY_SECS && p->post_timestamp > client->sync_since // is new post for this Client?
&& !p->author.matches(client->id)) { // don't push posts to the author
// push this post to Client, then wait for ACK
pushPostToClient(client, *p);
did_push = true;
MESH_DEBUG_PRINTLN("loop - pushed to client %02X: %s", (uint32_t) client->id.pub_key[0], p->text);
break;
}
idx = (idx + 1) % MAX_UNSYNCED_POSTS; // wrap to start of cyclic queue
}
} else {
MESH_DEBUG_PRINTLN("loop - skipping busy (or evicted) client %02X", (uint32_t) client->id.pub_key[0]);
}
next_client_idx = (next_client_idx + 1) % num_clients; // round robin polling for each client
if (did_push) {
next_push = futureMillis(SYNC_PUSH_INTERVAL);
} else {
// were no unsynced posts for curr client, so proccess next client much quicker! (in next loop())
next_push = futureMillis(SYNC_PUSH_INTERVAL / 8);
}
}
if (next_flood_advert && millisHasNowPassed(next_flood_advert)) {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) sendFlood(pkt);
updateFloodAdvertTimer(); // schedule next flood advert
updateAdvertTimer(); // also schedule local advert (so they don't overlap)
} else if (next_local_advert && millisHasNowPassed(next_local_advert)) {
mesh::Packet* pkt = createSelfAdvert();
if (pkt) sendZeroHop(pkt);
updateAdvertTimer(); // schedule next local advert
}
if (set_radio_at && millisHasNowPassed(set_radio_at)) { // apply pending (temporary) radio params
set_radio_at = 0; // clear timer
radio_set_params(pending_freq, pending_bw, pending_sf, pending_cr);
MESH_DEBUG_PRINTLN("Temp radio params");
}
if (revert_radio_at && millisHasNowPassed(revert_radio_at)) { // revert radio params to orig
revert_radio_at = 0; // clear timer
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
MESH_DEBUG_PRINTLN("Radio params restored");
}
#ifdef DISPLAY_CLASS
ui_task.loop();
#endif
// TODO: periodically check for OLD/inactive entries in known_clients[], and evict
}
};
StdRNG fast_rng;
SimpleMeshTables tables;
MyMesh the_mesh(board, radio_driver, *new ArduinoMillis(), fast_rng, rtc_clock, tables);
@ -1073,4 +107,7 @@ void loop() {
the_mesh.loop();
sensors.loop();
#ifdef DISPLAY_CLASS
ui_task.loop();
#endif
}

228
examples/simple_sensor/SensorMesh.cpp
View file

@ -71,78 +71,6 @@ static File openAppend(FILESYSTEM* _fs, const char* fname) {
#endif
}
static File openWrite(FILESYSTEM* _fs, const char* filename) {
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
_fs->remove(filename);
return _fs->open(filename, FILE_O_WRITE);
#elif defined(RP2040_PLATFORM)
return _fs->open(filename, "w");
#else
return _fs->open(filename, "w", true);
#endif
}
void SensorMesh::loadContacts() {
num_contacts = 0;
if (_fs->exists("/s_contacts")) {
#if defined(RP2040_PLATFORM)
File file = _fs->open("/s_contacts", "r");
#else
File file = _fs->open("/s_contacts");
#endif
if (file) {
bool full = false;
while (!full) {
ContactInfo c;
uint8_t pub_key[32];
uint8_t unused[6];
bool success = (file.read(pub_key, 32) == 32);
success = success && (file.read((uint8_t *) &c.permissions, 1) == 1);
success = success && (file.read(unused, 6) == 6);
success = success && (file.read((uint8_t *)&c.out_path_len, 1) == 1);
success = success && (file.read(c.out_path, 64) == 64);
success = success && (file.read(c.shared_secret, PUB_KEY_SIZE) == PUB_KEY_SIZE);
c.last_timestamp = 0; // transient
c.last_activity = 0;
if (!success) break; // EOF
c.id = mesh::Identity(pub_key);
if (num_contacts < MAX_CONTACTS) {
contacts[num_contacts++] = c;
} else {
full = true;
}
}
file.close();
}
}
}
void SensorMesh::saveContacts() {
File file = openWrite(_fs, "/s_contacts");
if (file) {
uint8_t unused[5];
memset(unused, 0, sizeof(unused));
for (int i = 0; i < num_contacts; i++) {
auto c = &contacts[i];
if (c->permissions == 0) continue; // skip deleted entries
bool success = (file.write(c->id.pub_key, 32) == 32);
success = success && (file.write((uint8_t *) &c->permissions, 1) == 1);
success = success && (file.write(unused, 6) == 6);
success = success && (file.write((uint8_t *)&c->out_path_len, 1) == 1);
success = success && (file.write(c->out_path, 64) == 64);
success = success && (file.write(c->shared_secret, PUB_KEY_SIZE) == PUB_KEY_SIZE);
if (!success) break; // write failed
}
file.close();
}
}
static uint8_t getDataSize(uint8_t type) {
switch (type) {
case LPP_GPS:
@ -295,8 +223,8 @@ uint8_t SensorMesh::handleRequest(uint8_t perms, uint32_t sender_timestamp, uint
uint8_t res2 = payload[1];
if (res1 == 0 && res2 == 0) {
uint8_t ofs = 4;
for (int i = 0; i < num_contacts && ofs + 7 <= sizeof(reply_data) - 4; i++) {
auto c = &contacts[i];
for (int i = 0; i < acl.getNumClients() && ofs + 7 <= sizeof(reply_data) - 4; i++) {
auto c = acl.getClientByIdx(i);
if (c->permissions == 0) continue; // skip deleted entries
memcpy(&reply_data[ofs], c->id.pub_key, 6); ofs += 6; // just 6-byte pub_key prefix
reply_data[ofs++] = c->permissions;
@ -318,63 +246,7 @@ mesh::Packet* SensorMesh::createSelfAdvert() {
return createAdvert(self_id, app_data, app_data_len);
}
ContactInfo* SensorMesh::getContact(const uint8_t* pubkey, int key_len) {
for (int i = 0; i < num_contacts; i++) {
if (memcmp(pubkey, contacts[i].id.pub_key, key_len) == 0) return &contacts[i]; // already known
}
return NULL; // not found
}
ContactInfo* SensorMesh::putContact(const mesh::Identity& id, uint8_t init_perms) {
uint32_t min_time = 0xFFFFFFFF;
ContactInfo* oldest = &contacts[MAX_CONTACTS - 1];
for (int i = 0; i < num_contacts; i++) {
if (id.matches(contacts[i].id)) return &contacts[i]; // already known
if (!contacts[i].isAdmin() && contacts[i].last_activity < min_time) {
oldest = &contacts[i];
min_time = oldest->last_activity;
}
}
ContactInfo* c;
if (num_contacts < MAX_CONTACTS) {
c = &contacts[num_contacts++];
} else {
c = oldest; // evict least active contact
}
memset(c, 0, sizeof(*c));
c->permissions = init_perms;
c->id = id;
c->out_path_len = -1; // initially out_path is unknown
return c;
}
bool SensorMesh::applyContactPermissions(const uint8_t* pubkey, int key_len, uint8_t perms) {
ContactInfo* c;
if ((perms & PERM_ACL_ROLE_MASK) == PERM_ACL_GUEST) { // guest role is not persisted in contacts
c = getContact(pubkey, key_len);
if (c == NULL) return false; // partial pubkey not found
num_contacts--; // delete from contacts[]
int i = c - contacts;
while (i < num_contacts) {
contacts[i] = contacts[i + 1];
i++;
}
} else {
if (key_len < PUB_KEY_SIZE) return false; // need complete pubkey when adding/modifying
mesh::Identity id(pubkey);
c = putContact(id, 0);
c->permissions = perms; // update their permissions
self_id.calcSharedSecret(c->shared_secret, pubkey);
}
dirty_contacts_expiry = futureMillis(LAZY_CONTACTS_WRITE_DELAY); // trigger saveContacts()
return true;
}
void SensorMesh::sendAlert(ContactInfo* c, Trigger* t) {
void SensorMesh::sendAlert(const ClientInfo* c, Trigger* t) {
int text_len = strlen(t->text);
uint8_t data[MAX_PACKET_PAYLOAD];
@ -457,9 +329,9 @@ int SensorMesh::getAGCResetInterval() const {
}
uint8_t SensorMesh::handleLoginReq(const mesh::Identity& sender, const uint8_t* secret, uint32_t sender_timestamp, const uint8_t* data) {
ContactInfo* client;
ClientInfo* client;
if (data[0] == 0) { // blank password, just check if sender is in ACL
client = getContact(sender.pub_key, PUB_KEY_SIZE);
client = acl.getClient(sender.pub_key, PUB_KEY_SIZE);
if (client == NULL) {
#if MESH_DEBUG
MESH_DEBUG_PRINTLN("Login, sender not in ACL");
@ -474,7 +346,7 @@ uint8_t SensorMesh::handleLoginReq(const mesh::Identity& sender, const uint8_t*
return 0;
}
client = putContact(sender, PERM_RECV_ALERTS_HI | PERM_RECV_ALERTS_LO); // add to contacts (if not already known)
client = acl.putClient(sender, PERM_RECV_ALERTS_HI | PERM_RECV_ALERTS_LO); // add to contacts (if not already known)
if (sender_timestamp <= client->last_timestamp) {
MESH_DEBUG_PRINTLN("Possible login replay attack!");
return 0; // FATAL: client table is full -OR- replay attack
@ -527,7 +399,8 @@ void SensorMesh::handleCommand(uint32_t sender_timestamp, char* command, char* r
int hex_len = min(sp - hex, PUB_KEY_SIZE*2);
if (mesh::Utils::fromHex(pubkey, hex_len / 2, hex)) {
uint8_t perms = atoi(sp);
if (applyContactPermissions(pubkey, hex_len / 2, perms)) {
if (acl.applyPermissions(self_id, pubkey, hex_len / 2, perms)) {
dirty_contacts_expiry = futureMillis(LAZY_CONTACTS_WRITE_DELAY); // trigger acl.save()
strcpy(reply, "OK");
} else {
strcpy(reply, "Err - invalid params");
@ -538,8 +411,8 @@ void SensorMesh::handleCommand(uint32_t sender_timestamp, char* command, char* r
}
} else if (sender_timestamp == 0 && strcmp(command, "get acl") == 0) {
Serial.println("ACL:");
for (int i = 0; i < num_contacts; i++) {
auto c = &contacts[i];
for (int i = 0; i < acl.getNumClients(); i++) {
auto c = acl.getClientByIdx(i);
if (c->permissions == 0) continue; // skip deleted entries
Serial.printf("%02X ", c->permissions);
@ -595,8 +468,8 @@ void SensorMesh::onAnonDataRecv(mesh::Packet* packet, const uint8_t* secret, con
int SensorMesh::searchPeersByHash(const uint8_t* hash) {
int n = 0;
for (int i = 0; i < num_contacts && n < MAX_SEARCH_RESULTS; i++) {
if (contacts[i].id.isHashMatch(hash)) {
for (int i = 0; i < acl.getNumClients() && n < MAX_SEARCH_RESULTS; i++) {
if (acl.getClientByIdx(i)->id.isHashMatch(hash)) {
matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
}
}
@ -605,15 +478,15 @@ int SensorMesh::searchPeersByHash(const uint8_t* hash) {
void SensorMesh::getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) {
int i = matching_peer_indexes[peer_idx];
if (i >= 0 && i < num_contacts) {
if (i >= 0 && i < acl.getNumClients()) {
// lookup pre-calculated shared_secret
memcpy(dest_secret, contacts[i].shared_secret, PUB_KEY_SIZE);
memcpy(dest_secret, acl.getClientByIdx(i)->shared_secret, PUB_KEY_SIZE);
} else {
MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
}
}
void SensorMesh::sendAckTo(const ContactInfo& dest, uint32_t ack_hash) {
void SensorMesh::sendAckTo(const ClientInfo& dest, uint32_t ack_hash) {
if (dest.out_path_len < 0) {
mesh::Packet* ack = createAck(ack_hash);
if (ack) sendFlood(ack, TXT_ACK_DELAY);
@ -632,34 +505,34 @@ void SensorMesh::sendAckTo(const ContactInfo& dest, uint32_t ack_hash) {
void SensorMesh::onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) {
int i = matching_peer_indexes[sender_idx];
if (i < 0 || i >= num_contacts) {
if (i < 0 || i >= acl.getNumClients()) {
MESH_DEBUG_PRINTLN("onPeerDataRecv: Invalid sender idx: %d", i);
return;
}
ContactInfo& from = contacts[i];
ClientInfo* from = acl.getClientByIdx(i);
if (type == PAYLOAD_TYPE_REQ) { // request (from a known contact)
uint32_t timestamp;
memcpy(&timestamp, data, 4);
if (timestamp > from.last_timestamp) { // prevent replay attacks
uint8_t reply_len = handleRequest(from.isAdmin() ? 0xFF : from.permissions, timestamp, data[4], &data[5], len - 5);
if (timestamp > from->last_timestamp) { // prevent replay attacks
uint8_t reply_len = handleRequest(from->isAdmin() ? 0xFF : from->permissions, timestamp, data[4], &data[5], len - 5);
if (reply_len == 0) return; // invalid command
from.last_timestamp = timestamp;
from.last_activity = getRTCClock()->getCurrentTime();
from->last_timestamp = timestamp;
from->last_activity = getRTCClock()->getCurrentTime();
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
mesh::Packet* path = createPathReturn(from.id, secret, packet->path, packet->path_len,
mesh::Packet* path = createPathReturn(from->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
if (path) sendFlood(path, SERVER_RESPONSE_DELAY);
} else {
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, from.id, secret, reply_data, reply_len);
mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, from->id, secret, reply_data, reply_len);
if (reply) {
if (from.out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, from.out_path, from.out_path_len, SERVER_RESPONSE_DELAY);
if (from->out_path_len >= 0) { // we have an out_path, so send DIRECT
sendDirect(reply, from->out_path, from->out_path_len, SERVER_RESPONSE_DELAY);
} else {
sendFlood(reply, SERVER_RESPONSE_DELAY);
}
@ -668,30 +541,30 @@ void SensorMesh::onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_i
} else {
MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
}
} else if (type == PAYLOAD_TYPE_TXT_MSG && len > 5 && from.isAdmin()) { // a CLI command
} else if (type == PAYLOAD_TYPE_TXT_MSG && len > 5 && from->isAdmin()) { // a CLI command
uint32_t sender_timestamp;
memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
uint flags = (data[4] >> 2); // message attempt number, and other flags
if (sender_timestamp > from.last_timestamp) { // prevent replay attacks
if (sender_timestamp > from->last_timestamp) { // prevent replay attacks
if (flags == TXT_TYPE_PLAIN) {
bool handled = handleIncomingMsg(from, sender_timestamp, &data[5], flags, len - 5);
bool handled = handleIncomingMsg(*from, sender_timestamp, &data[5], flags, len - 5);
if (handled) { // if msg was handled then send an ack
uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), from.id.pub_key, PUB_KEY_SIZE);
mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), from->id.pub_key, PUB_KEY_SIZE);
if (packet->isRouteFlood()) {
// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the ACK
mesh::Packet* path = createPathReturn(from.id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_ACK, (uint8_t *) &ack_hash, 4);
mesh::Packet* path = createPathReturn(from->id, secret, packet->path, packet->path_len,
PAYLOAD_TYPE_ACK, (uint8_t *) &ack_hash, 4);
if (path) sendFlood(path, TXT_ACK_DELAY);
} else {
sendAckTo(from, ack_hash);
}
sendAckTo(*from, ack_hash);
}
}
} else if (flags == TXT_TYPE_CLI_DATA) {
from.last_timestamp = sender_timestamp;
from.last_activity = getRTCClock()->getCurrentTime();
from->last_timestamp = sender_timestamp;
from->last_activity = getRTCClock()->getCurrentTime();
// len can be > original length, but 'text' will be padded with zeroes
data[len] = 0; // need to make a C string again, with null terminator
@ -711,12 +584,12 @@ void SensorMesh::onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_i
memcpy(temp, &timestamp, 4); // mostly an extra blob to help make packet_hash unique
temp[4] = (TXT_TYPE_CLI_DATA << 2);
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, from.id, secret, temp, 5 + text_len);
auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, from->id, secret, temp, 5 + text_len);
if (reply) {
if (from.out_path_len < 0) {
if (from->out_path_len < 0) {
sendFlood(reply, CLI_REPLY_DELAY_MILLIS);
} else {
sendDirect(reply, from.out_path, from.out_path_len, CLI_REPLY_DELAY_MILLIS);
sendDirect(reply, from->out_path, from->out_path_len, CLI_REPLY_DELAY_MILLIS);
}
}
}
@ -729,7 +602,7 @@ void SensorMesh::onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_i
}
}
bool SensorMesh::handleIncomingMsg(ContactInfo& from, uint32_t timestamp, uint8_t* data, uint flags, size_t len) {
bool SensorMesh::handleIncomingMsg(ClientInfo& from, uint32_t timestamp, uint8_t* data, uint flags, size_t len) {
MESH_DEBUG_PRINT("handleIncomingMsg: unhandled msg from ");
#ifdef MESH_DEBUG
mesh::Utils::printHex(Serial, from.id.pub_key, PUB_KEY_SIZE);
@ -740,21 +613,21 @@ bool SensorMesh::handleIncomingMsg(ContactInfo& from, uint32_t timestamp, uint8_
bool SensorMesh::onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) {
int i = matching_peer_indexes[sender_idx];
if (i < 0 || i >= num_contacts) {
if (i < 0 || i >= acl.getNumClients()) {
MESH_DEBUG_PRINTLN("onPeerPathRecv: Invalid sender idx: %d", i);
return false;
}
ContactInfo& from = contacts[i];
ClientInfo* from = acl.getClientByIdx(i);
MESH_DEBUG_PRINTLN("PATH to contact, path_len=%d", (uint32_t) path_len);
// NOTE: for this impl, we just replace the current 'out_path' regardless, whenever sender sends us a new out_path.
// FUTURE: could store multiple out_paths per contact, and try to find which is the 'best'(?)
memcpy(from.out_path, path, from.out_path_len = path_len); // store a copy of path, for sendDirect()
from.last_activity = getRTCClock()->getCurrentTime();
memcpy(from->out_path, path, from->out_path_len = path_len); // store a copy of path, for sendDirect()
from->last_activity = getRTCClock()->getCurrentTime();
// REVISIT: maybe make ALL out_paths non-persisted to minimise flash writes??
if (from.isAdmin()) {
if (from->isAdmin()) {
// only do saveContacts() (of this out_path change) if this is an admin
dirty_contacts_expiry = futureMillis(LAZY_CONTACTS_WRITE_DELAY);
}
@ -781,7 +654,6 @@ SensorMesh::SensorMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::Millise
: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
_cli(board, rtc, &_prefs, this), telemetry(MAX_PACKET_PAYLOAD - 4)
{
num_contacts = 0;
next_local_advert = next_flood_advert = 0;
dirty_contacts_expiry = 0;
last_read_time = 0;
@ -815,7 +687,7 @@ void SensorMesh::begin(FILESYSTEM* fs) {
// load persisted prefs
_cli.loadPrefs(_fs);
loadContacts();
acl.load(_fs);
radio_set_params(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
radio_set_tx_power(_prefs.tx_power_dbm);
@ -967,13 +839,13 @@ void SensorMesh::loop() {
if (millisHasNowPassed(t->send_expiry)) { // next send needed?
if (t->attempt >= 4) { // max attempts reached, try next contact
t->curr_contact_idx++;
if (t->curr_contact_idx >= num_contacts) { // no more contacts to try?
if (t->curr_contact_idx >= acl.getNumClients()) { // no more contacts to try?
num_alert_tasks--; // remove t from queue
for (int i = 0; i < num_alert_tasks; i++) {
alert_tasks[i] = alert_tasks[i + 1];
}
} else {
auto c = &contacts[t->curr_contact_idx];
auto c = acl.getClientByIdx(t->curr_contact_idx);
uint16_t pri_mask = (t->pri == HIGH_PRI_ALERT) ? PERM_RECV_ALERTS_HI : PERM_RECV_ALERTS_LO;
if (c->permissions & pri_mask) { // contact wants alert
@ -986,8 +858,8 @@ void SensorMesh::loop() {
// next contact tested in next ::loop()
}
}
} else if (t->curr_contact_idx < num_contacts) {
auto c = &contacts[t->curr_contact_idx]; // send next attempt
} else if (t->curr_contact_idx < acl.getNumClients()) {
auto c = acl.getClientByIdx(t->curr_contact_idx); // send next attempt
sendAlert(c, t); // NOTE: modifies attempt, expected_acks[] and send_expiry
} else {
// contact list has likely been modified while waiting for alert ACK, cancel this task
@ -998,7 +870,7 @@ void SensorMesh::loop() {
// is there are pending dirty contacts write needed?
if (dirty_contacts_expiry && millisHasNowPassed(dirty_contacts_expiry)) {
saveContacts();
acl.save(_fs);
dirty_contacts_expiry = 0;
}
}

35
examples/simple_sensor/SensorMesh.h
View file

@ -20,15 +20,10 @@
#include <helpers/AdvertDataHelpers.h>
#include <helpers/TxtDataHelpers.h>
#include <helpers/CommonCLI.h>
#include <helpers/ClientACL.h>
#include <RTClib.h>
#include <target.h>
#define PERM_ACL_ROLE_MASK 3 // lower 2 bits
#define PERM_ACL_GUEST 0
#define PERM_ACL_READ_ONLY 1
#define PERM_ACL_READ_WRITE 2
#define PERM_ACL_ADMIN 3
#define PERM_RESERVED1 (1 << 2)
#define PERM_RESERVED2 (1 << 3)
#define PERM_RESERVED3 (1 << 4)
@ -36,18 +31,6 @@
#define PERM_RECV_ALERTS_LO (1 << 6) // low priority alerts
#define PERM_RECV_ALERTS_HI (1 << 7) // high priority alerts
struct ContactInfo {
mesh::Identity id;
uint8_t permissions;
int8_t out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
uint8_t shared_secret[PUB_KEY_SIZE];
uint32_t last_timestamp; // by THEIR clock (transient)
uint32_t last_activity; // by OUR clock (transient)
bool isAdmin() const { return (permissions & PERM_ACL_ROLE_MASK) == PERM_ACL_ADMIN; }
};
#ifndef FIRMWARE_BUILD_DATE
#define FIRMWARE_BUILD_DATE "1 Sep 2025"
#endif
@ -58,8 +41,6 @@ struct ContactInfo {
#define FIRMWARE_ROLE "sensor"
#define MAX_CONTACTS 20
#define MAX_SEARCH_RESULTS 8
#define MAX_CONCURRENT_ALERTS 4
@ -141,16 +122,15 @@ protected:
void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override;
bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override;
void onAckRecv(mesh::Packet* packet, uint32_t ack_crc) override;
virtual bool handleIncomingMsg(ContactInfo& from, uint32_t timestamp, uint8_t* data, uint flags, size_t len);
void sendAckTo(const ContactInfo& dest, uint32_t ack_hash);
virtual bool handleIncomingMsg(ClientInfo& from, uint32_t timestamp, uint8_t* data, uint flags, size_t len);
void sendAckTo(const ClientInfo& dest, uint32_t ack_hash);
private:
FILESYSTEM* _fs;
unsigned long next_local_advert, next_flood_advert;
NodePrefs _prefs;
CommonCLI _cli;
uint8_t reply_data[MAX_PACKET_PAYLOAD];
ContactInfo contacts[MAX_CONTACTS];
int num_contacts;
ClientACL acl;
unsigned long dirty_contacts_expiry;
CayenneLPP telemetry;
uint32_t last_read_time;
@ -163,15 +143,10 @@ private:
uint8_t pending_sf;
uint8_t pending_cr;
void loadContacts();
void saveContacts();
uint8_t handleLoginReq(const mesh::Identity& sender, const uint8_t* secret, uint32_t sender_timestamp, const uint8_t* data);
uint8_t handleRequest(uint8_t perms, uint32_t sender_timestamp, uint8_t req_type, uint8_t* payload, size_t payload_len);
mesh::Packet* createSelfAdvert();
ContactInfo* getContact(const uint8_t* pubkey, int key_len);
ContactInfo* putContact(const mesh::Identity& id, uint8_t init_perms);
bool applyContactPermissions(const uint8_t* pubkey, int key_len, uint8_t perms);
void sendAlert(ContactInfo* c, Trigger* t);
void sendAlert(const ClientInfo* c, Trigger* t);
};

2
src/Identity.cpp
View file

@ -92,7 +92,7 @@ void LocalIdentity::sign(uint8_t* sig, const uint8_t* message, int msg_len) cons
ed25519_sign(sig, message, msg_len, pub_key, prv_key);
}
void LocalIdentity::calcSharedSecret(uint8_t* secret, const uint8_t* other_pub_key) {
void LocalIdentity::calcSharedSecret(uint8_t* secret, const uint8_t* other_pub_key) const {
ed25519_key_exchange(secret, other_pub_key, prv_key);
}

2
src/Identity.h
View file

@ -71,7 +71,7 @@ public:
* \param secret OUT - the 'shared secret' (must be PUB_KEY_SIZE bytes)
* \param other_pub_key IN - the public key of second party in the exchange (must be PUB_KEY_SIZE bytes)
*/
void calcSharedSecret(uint8_t* secret, const uint8_t* other_pub_key);
void calcSharedSecret(uint8_t* secret, const uint8_t* other_pub_key) const;
bool readFrom(Stream& s);
bool writeTo(Stream& s) const;

128
src/helpers/ClientACL.cpp Normal file
View file

@ -0,0 +1,128 @@
#include "ClientACL.h"
static File openWrite(FILESYSTEM* _fs, const char* filename) {
#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
_fs->remove(filename);
return _fs->open(filename, FILE_O_WRITE);
#elif defined(RP2040_PLATFORM)
return _fs->open(filename, "w");
#else
return _fs->open(filename, "w", true);
#endif
}
void ClientACL::load(FILESYSTEM* _fs) {
num_clients = 0;
if (_fs->exists("/s_contacts")) {
#if defined(RP2040_PLATFORM)
File file = _fs->open("/s_contacts", "r");
#else
File file = _fs->open("/s_contacts");
#endif
if (file) {
bool full = false;
while (!full) {
ClientInfo c;
uint8_t pub_key[32];
uint8_t unused[6];
bool success = (file.read(pub_key, 32) == 32);
success = success && (file.read((uint8_t *) &c.permissions, 1) == 1);
success = success && (file.read(unused, 6) == 6);
success = success && (file.read((uint8_t *)&c.out_path_len, 1) == 1);
success = success && (file.read(c.out_path, 64) == 64);
success = success && (file.read(c.shared_secret, PUB_KEY_SIZE) == PUB_KEY_SIZE);
c.last_timestamp = 0; // transient
c.last_activity = 0;
if (!success) break; // EOF
c.id = mesh::Identity(pub_key);
if (num_clients < MAX_CLIENTS) {
clients[num_clients++] = c;
} else {
full = true;
}
}
file.close();
}
}
}
void ClientACL::save(FILESYSTEM* _fs) {
File file = openWrite(_fs, "/s_contacts");
if (file) {
uint8_t unused[6];
memset(unused, 0, sizeof(unused));
for (int i = 0; i < num_clients; i++) {
auto c = &clients[i];
if (c->permissions == 0) continue; // skip deleted entries
bool success = (file.write(c->id.pub_key, 32) == 32);
success = success && (file.write((uint8_t *) &c->permissions, 1) == 1);
success = success && (file.write(unused, 6) == 6);
success = success && (file.write((uint8_t *)&c->out_path_len, 1) == 1);
success = success && (file.write(c->out_path, 64) == 64);
success = success && (file.write(c->shared_secret, PUB_KEY_SIZE) == PUB_KEY_SIZE);
if (!success) break; // write failed
}
file.close();
}
}
ClientInfo* ClientACL::getClient(const uint8_t* pubkey, int key_len) {
for (int i = 0; i < num_clients; i++) {
if (memcmp(pubkey, clients[i].id.pub_key, key_len) == 0) return &clients[i]; // already known
}
return NULL; // not found
}
ClientInfo* ClientACL::putClient(const mesh::Identity& id, uint8_t init_perms) {
uint32_t min_time = 0xFFFFFFFF;
ClientInfo* oldest = &clients[MAX_CLIENTS - 1];
for (int i = 0; i < num_clients; i++) {
if (id.matches(clients[i].id)) return &clients[i]; // already known
if (!clients[i].isAdmin() && clients[i].last_activity < min_time) {
oldest = &clients[i];
min_time = oldest->last_activity;
}
}
ClientInfo* c;
if (num_clients < MAX_CLIENTS) {
c = &clients[num_clients++];
} else {
c = oldest; // evict least active contact
}
memset(c, 0, sizeof(*c));
c->permissions = init_perms;
c->id = id;
c->out_path_len = -1; // initially out_path is unknown
return c;
}
bool ClientACL::applyPermissions(const mesh::LocalIdentity& self_id, const uint8_t* pubkey, int key_len, uint8_t perms) {
ClientInfo* c;
if ((perms & PERM_ACL_ROLE_MASK) == PERM_ACL_GUEST) { // guest role is not persisted in contacts
c = getClient(pubkey, key_len);
if (c == NULL) return false; // partial pubkey not found
num_clients--; // delete from contacts[]
int i = c - clients;
while (i < num_clients) {
clients[i] = clients[i + 1];
i++;
}
} else {
if (key_len < PUB_KEY_SIZE) return false; // need complete pubkey when adding/modifying
mesh::Identity id(pubkey);
c = putClient(id, 0);
c->permissions = perms; // update their permissions
self_id.calcSharedSecret(c->shared_secret, pubkey);
}
return true;
}

47
src/helpers/ClientACL.h Normal file
View file

@ -0,0 +1,47 @@
#pragma once
#include <Arduino.h> // needed for PlatformIO
#include <Mesh.h>
#include <helpers/IdentityStore.h>
#define PERM_ACL_ROLE_MASK 3 // lower 2 bits
#define PERM_ACL_GUEST 0
#define PERM_ACL_READ_ONLY 1
#define PERM_ACL_READ_WRITE 2
#define PERM_ACL_ADMIN 3
struct ClientInfo {
mesh::Identity id;
uint8_t permissions;
int8_t out_path_len;
uint8_t out_path[MAX_PATH_SIZE];
uint8_t shared_secret[PUB_KEY_SIZE];
uint32_t last_timestamp; // by THEIR clock (transient)
uint32_t last_activity; // by OUR clock (transient)
bool isAdmin() const { return (permissions & PERM_ACL_ROLE_MASK) == PERM_ACL_ADMIN; }
};
#ifndef MAX_CLIENTS
#define MAX_CLIENTS 20
#endif
class ClientACL {
ClientInfo clients[MAX_CLIENTS];
int num_clients;
public:
ClientACL() {
memset(clients, 0, sizeof(clients));
num_clients = 0;
}
void load(FILESYSTEM* _fs);
void save(FILESYSTEM* _fs);
ClientInfo* getClient(const uint8_t* pubkey, int key_len);
ClientInfo* putClient(const mesh::Identity& id, uint8_t init_perms);
bool applyPermissions(const mesh::LocalIdentity& self_id, const uint8_t* pubkey, int key_len, uint8_t perms);
int getNumClients() const { return num_clients; }
ClientInfo* getClientByIdx(int idx) { return &clients[idx]; }
};

8
src/helpers/sensors/EnvironmentSensorManager.cpp
View file

@ -252,7 +252,7 @@ bool EnvironmentSensorManager::querySensors(uint8_t requester_permissions, Cayen
next_available_channel = TELEM_CHANNEL_SELF + 1;
if (requester_permissions & TELEM_PERM_LOCATION && gps_active) {
telemetry.addGPS(TELEM_CHANNEL_SELF, node_lat, node_lon, 0.0f); // allow lat/lon via telemetry even if no GPS is detected
telemetry.addGPS(TELEM_CHANNEL_SELF, node_lat, node_lon, node_altitude); // allow lat/lon via telemetry even if no GPS is detected
}
if (requester_permissions & TELEM_PERM_ENVIRONMENT) {
@ -577,17 +577,23 @@ void EnvironmentSensorManager::loop() {
node_lat = ((double)ublox_GNSS.getLatitude())/10000000.;
node_lon = ((double)ublox_GNSS.getLongitude())/10000000.;
MESH_DEBUG_PRINTLN("lat %f lon %f", node_lat, node_lon);
node_altitude = ((double)ublox_GNSS.getAltitude()) / 1000.0;
MESH_DEBUG_PRINTLN("lat %f lon %f alt %f", node_lat, node_lon, node_altitude);
}
else if (serialGPSFlag && _location->isValid()) {
node_lat = ((double)_location->getLatitude())/1000000.;
node_lon = ((double)_location->getLongitude())/1000000.;
MESH_DEBUG_PRINTLN("lat %f lon %f", node_lat, node_lon);
node_altitude = ((double)_location->getAltitude()) / 1000.0;
MESH_DEBUG_PRINTLN("lat %f lon %f alt %f", node_lat, node_lon, node_altitude);
}
#else
if (_location->isValid()) {
node_lat = ((double)_location->getLatitude())/1000000.;
node_lon = ((double)_location->getLongitude())/1000000.;
MESH_DEBUG_PRINTLN("lat %f lon %f", node_lat, node_lon);
node_altitude = ((double)_location->getAltitude()) / 1000.0;
MESH_DEBUG_PRINTLN("lat %f lon %f alt %f", node_lat, node_lon, node_altitude);
}
#endif
}

223
src/helpers/sensors/LPPDataHelpers.h Normal file
View file

@ -0,0 +1,223 @@
#pragma once
#include <stdint.h>
#define LPP_DIGITAL_INPUT 0 // 1 byte
#define LPP_DIGITAL_OUTPUT 1 // 1 byte
#define LPP_ANALOG_INPUT 2 // 2 bytes, 0.01 signed
#define LPP_ANALOG_OUTPUT 3 // 2 bytes, 0.01 signed
#define LPP_GENERIC_SENSOR 100 // 4 bytes, unsigned
#define LPP_LUMINOSITY 101 // 2 bytes, 1 lux unsigned
#define LPP_PRESENCE 102 // 1 byte, bool
#define LPP_TEMPERATURE 103 // 2 bytes, 0.1°C signed
#define LPP_RELATIVE_HUMIDITY 104 // 1 byte, 0.5% unsigned
#define LPP_ACCELEROMETER 113 // 2 bytes per axis, 0.001G
#define LPP_BAROMETRIC_PRESSURE 115 // 2 bytes 0.1hPa unsigned
#define LPP_VOLTAGE 116 // 2 bytes 0.01V unsigned
#define LPP_CURRENT 117 // 2 bytes 0.001A unsigned
#define LPP_FREQUENCY 118 // 4 bytes 1Hz unsigned
#define LPP_PERCENTAGE 120 // 1 byte 1-100% unsigned
#define LPP_ALTITUDE 121 // 2 byte 1m signed
#define LPP_CONCENTRATION 125 // 2 bytes, 1 ppm unsigned
#define LPP_POWER 128 // 2 byte, 1W, unsigned
#define LPP_DISTANCE 130 // 4 byte, 0.001m, unsigned
#define LPP_ENERGY 131 // 4 byte, 0.001kWh, unsigned
#define LPP_DIRECTION 132 // 2 bytes, 1deg, unsigned
#define LPP_UNIXTIME 133 // 4 bytes, unsigned
#define LPP_GYROMETER 134 // 2 bytes per axis, 0.01 °/s
#define LPP_COLOUR 135 // 1 byte per RGB Color
#define LPP_GPS 136 // 3 byte lon/lat 0.0001 °, 3 bytes alt 0.01 meter
#define LPP_SWITCH 142 // 1 byte, 0/1
#define LPP_POLYLINE 240 // 1 byte size, 1 byte delta factor, 3 byte lon/lat 0.0001° * factor, n (size-8) bytes deltas
// Multipliers
#define LPP_DIGITAL_INPUT_MULT 1
#define LPP_DIGITAL_OUTPUT_MULT 1
#define LPP_ANALOG_INPUT_MULT 100
#define LPP_ANALOG_OUTPUT_MULT 100
#define LPP_GENERIC_SENSOR_MULT 1
#define LPP_LUMINOSITY_MULT 1
#define LPP_PRESENCE_MULT 1
#define LPP_TEMPERATURE_MULT 10
#define LPP_RELATIVE_HUMIDITY_MULT 2
#define LPP_ACCELEROMETER_MULT 1000
#define LPP_BAROMETRIC_PRESSURE_MULT 10
#define LPP_VOLTAGE_MULT 100
#define LPP_CURRENT_MULT 1000
#define LPP_FREQUENCY_MULT 1
#define LPP_PERCENTAGE_MULT 1
#define LPP_ALTITUDE_MULT 1
#define LPP_POWER_MULT 1
#define LPP_DISTANCE_MULT 1000
#define LPP_ENERGY_MULT 1000
#define LPP_DIRECTION_MULT 1
#define LPP_UNIXTIME_MULT 1
#define LPP_GYROMETER_MULT 100
#define LPP_GPS_LAT_LON_MULT 10000
#define LPP_GPS_ALT_MULT 100
#define LPP_SWITCH_MULT 1
#define LPP_CONCENTRATION_MULT 1
#define LPP_COLOUR_MULT 1
#define LPP_ERROR_OK 0
#define LPP_ERROR_OVERFLOW 1
#define LPP_ERROR_UNKOWN_TYPE 2
class LPPReader {
const uint8_t* _buf;
uint8_t _len;
uint8_t _pos;
float getFloat(const uint8_t * buffer, uint8_t size, uint32_t multiplier, bool is_signed) {
uint32_t value = 0;
for (uint8_t i = 0; i < size; i++) {
value = (value << 8) + buffer[i];
}
int sign = 1;
if (is_signed) {
uint32_t bit = 1ul << ((size * 8) - 1);
if ((value & bit) == bit) {
value = (bit << 1) - value;
sign = -1;
}
}
return sign * ((float) value / multiplier);
}
public:
LPPReader(const uint8_t buf[], uint8_t len) : _buf(buf), _len(len), _pos(0) { }
void reset() {
_pos = 0;
}
bool readHeader(uint8_t& channel, uint8_t& type) {
if (_pos + 2 < _len) {
channel = _buf[_pos++];
type = _buf[_pos++];
return channel != 0; // channel 0 is End-of-data
}
return false; // end-of-buffer
}
bool readGPS(float& lat, float& lon, float& alt) {
lat = getFloat(&_buf[_pos], 3, 10000, true); _pos += 3;
lon = getFloat(&_buf[_pos], 3, 10000, true); _pos += 3;
alt = getFloat(&_buf[_pos], 3, 100, true); _pos += 3;
return _pos <= _len;
}
bool readVoltage(float& voltage) {
voltage = getFloat(&_buf[_pos], 2, 100, false); _pos += 2;
return _pos <= _len;
}
bool readCurrent(float& amps) {
amps = getFloat(&_buf[_pos], 2, 1000, false); _pos += 2;
return _pos <= _len;
}
bool readPower(float& watts) {
watts = getFloat(&_buf[_pos], 2, 1, false); _pos += 2;
return _pos <= _len;
}
bool readTemperature(float& degrees_c) {
degrees_c = getFloat(&_buf[_pos], 2, 10, true); _pos += 2;
return _pos <= _len;
}
bool readPressure(float& pa) {
pa = getFloat(&_buf[_pos], 2, 10, false); _pos += 2;
return _pos <= _len;
}
bool readRelativeHumidity(float& pct) {
pct = getFloat(&_buf[_pos], 1, 2, false); _pos += 1;
return _pos <= _len;
}
bool readAltitude(float& m) {
m = getFloat(&_buf[_pos], 2, 1, true); _pos += 2;
return _pos <= _len;
}
void skipData(uint8_t type) {
switch (type) {
case LPP_GPS:
_pos += 9; break;
case LPP_POLYLINE:
_pos += 8; break; // TODO: this is MINIMIUM
case LPP_GYROMETER:
case LPP_ACCELEROMETER:
_pos += 6; break;
case LPP_GENERIC_SENSOR:
case LPP_FREQUENCY:
case LPP_DISTANCE:
case LPP_ENERGY:
case LPP_UNIXTIME:
_pos += 4; break;
case LPP_COLOUR:
_pos += 3; break;
case LPP_ANALOG_INPUT:
case LPP_ANALOG_OUTPUT:
case LPP_LUMINOSITY:
case LPP_TEMPERATURE:
case LPP_CONCENTRATION:
case LPP_BAROMETRIC_PRESSURE:
case LPP_ALTITUDE:
case LPP_VOLTAGE:
case LPP_CURRENT:
case LPP_DIRECTION:
case LPP_POWER:
_pos += 2; break;
default:
_pos++;
}
}
};
class LPPWriter {
uint8_t* _buf;
uint8_t _max_len;
uint8_t _len;
void write(uint16_t value) {
_buf[_len++] = (value >> 8) & 0xFF; // MSB
_buf[_len++] = value & 0xFF; // LSB
}
public:
LPPWriter(uint8_t buf[], uint8_t max_len): _buf(buf), _max_len(max_len), _len(0) { }
bool writeVoltage(uint8_t channel, float voltage) {
if (_len + 4 <= _max_len) {
_buf[_len++] = channel;
_buf[_len++] = LPP_VOLTAGE;
uint16_t value = voltage * 100;
write(value);
return true;
}
return false;
}
bool writeGPS(uint8_t channel, float lat, float lon, float alt) {
if (_len + 11 <= _max_len) {
_buf[_len++] = channel;
_buf[_len++] = LPP_GPS;
int32_t lati = lat * 10000; // we lose some precision :-(
int32_t loni = lon * 10000;
int32_t alti = alt * 100;
_buf[_len++] = lati >> 16;
_buf[_len++] = lati >> 8;
_buf[_len++] = lati;
_buf[_len++] = loni >> 16;
_buf[_len++] = loni >> 8;
_buf[_len++] = loni;
_buf[_len++] = alti >> 16;
_buf[_len++] = alti >> 8;
_buf[_len++] = alti;
return true;
}
return false;
}
uint8_t length() { return _len; }
};

12
variants/generic-e22/platformio.ini
View file

@ -30,7 +30,7 @@ lib_deps =
[env:Generic_E22_sx1262_repeater]
extends = Generic_E22
build_src_filter = ${Generic_E22.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Generic_E22.build_flags}
-D RADIO_CLASS=CustomSX1262
@ -51,7 +51,7 @@ lib_deps =
; extends = Generic_E22
; build_src_filter = ${Generic_E22.build_src_filter}
; +<helpers/bridges/RS232Bridge.cpp>
; +<../examples/simple_repeater/main.cpp>
; +<../examples/simple_repeater/*.cpp>
; build_flags =
; ${Generic_E22.build_flags}
; -D RADIO_CLASS=CustomSX1262
@ -75,7 +75,7 @@ lib_deps =
extends = Generic_E22
build_src_filter = ${Generic_E22.build_src_filter}
+<helpers/bridges/ESPNowBridge.cpp>
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Generic_E22.build_flags}
-D RADIO_CLASS=CustomSX1262
@ -97,7 +97,7 @@ lib_deps =
[env:Generic_E22_sx1268_repeater]
extends = Generic_E22
build_src_filter = ${Generic_E22.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Generic_E22.build_flags}
-D RADIO_CLASS=CustomSX1268
@ -118,7 +118,7 @@ lib_deps =
; extends = Generic_E22
; build_src_filter = ${Generic_E22.build_src_filter}
; +<helpers/bridges/RS232Bridge.cpp>
; +<../examples/simple_repeater/main.cpp>
; +<../examples/simple_repeater/*.cpp>
; build_flags =
; ${Generic_E22.build_flags}
; -D RADIO_CLASS=CustomSX1268
@ -142,7 +142,7 @@ lib_deps =
extends = Generic_E22
build_src_filter = ${Generic_E22.build_src_filter}
+<helpers/bridges/ESPNowBridge.cpp>
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Generic_E22.build_flags}
-D RADIO_CLASS=CustomSX1268

4
variants/generic_espnow/platformio.ini
View file

@ -44,7 +44,7 @@ build_flags =
-D ADMIN_PASSWORD='"password"'
-D MAX_NEIGHBOURS=8
build_src_filter = ${Generic_ESPNOW.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
lib_deps =
${Generic_ESPNOW.lib_deps}
${esp32_ota.lib_deps}
@ -75,7 +75,7 @@ build_flags =
-D ADMIN_PASSWORD='"password"'
-D ROOM_PASSWORD='"hello"'
build_src_filter = ${Generic_ESPNOW.build_src_filter}
+<../examples/simple_room_server/main.cpp>
+<../examples/simple_room_server/*.cpp>
lib_deps =
${Generic_ESPNOW.lib_deps}
${esp32_ota.lib_deps}

4
variants/heltec_mesh_solar/platformio.ini
View file

@ -57,6 +57,8 @@ build_flags =
[env:Heltec_mesh_solar_companion_radio_ble]
extends = Heltec_mesh_solar
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Heltec_mesh_solar.build_flags}
-D MAX_CONTACTS=350
@ -75,6 +77,8 @@ lib_deps =
[env:Heltec_mesh_solar_companion_radio_usb]
extends = Heltec_mesh_solar
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Heltec_mesh_solar.build_flags}
-D MAX_CONTACTS=350

8
variants/heltec_t114/platformio.ini
View file

@ -70,6 +70,8 @@ build_flags =
[env:Heltec_t114_without_display_companion_radio_ble]
extends = Heltec_t114
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Heltec_t114.build_flags}
-I examples/companion_radio/ui-new
@ -90,6 +92,8 @@ lib_deps =
[env:Heltec_t114_without_display_companion_radio_usb]
extends = Heltec_t114
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Heltec_t114.build_flags}
-I examples/companion_radio/ui-new
@ -158,6 +162,8 @@ build_flags =
[env:Heltec_t114_companion_radio_ble]
extends = Heltec_t114_with_display
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Heltec_t114_with_display.build_flags}
-I examples/companion_radio/ui-new
@ -178,6 +184,8 @@ lib_deps =
[env:Heltec_t114_companion_radio_usb]
extends = Heltec_t114_with_display
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Heltec_t114_with_display.build_flags}
-I examples/companion_radio/ui-new

4
variants/ikoka_stick_nrf/platformio.ini
View file

@ -101,6 +101,8 @@ build_src_filter = ${nrf52840_xiao.build_src_filter}
[ikoka_stick_nrf_companion_radio_ble]
extends = ikoka_stick_nrf_baseboard
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags =
${ikoka_stick_nrf_baseboard.build_flags}
-D MAX_CONTACTS=350
@ -121,6 +123,8 @@ lib_deps =
[ikoka_stick_nrf_companion_radio_usb]
extends = ikoka_stick_nrf_baseboard
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags =
${ikoka_stick_nrf_baseboard.build_flags}
-D MAX_CONTACTS=350

8
variants/lilygo_techo/platformio.ini
View file

@ -78,6 +78,8 @@ build_flags =
[env:LilyGo_T-Echo_companion_radio_ble]
extends = LilyGo_T-Echo
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${LilyGo_T-Echo.build_flags}
-I src/helpers/ui
@ -88,6 +90,8 @@ build_flags =
-D BLE_PIN_CODE=123456
; -D BLE_DEBUG_LOGGING=1
-D OFFLINE_QUEUE_SIZE=256
-D UI_RECENT_LIST_SIZE=9
-D UI_SENSORS_PAGE=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
-D AUTO_SHUTDOWN_MILLIVOLTS=3300
@ -101,6 +105,8 @@ lib_deps =
[env:LilyGo_T-Echo_companion_radio_usb]
extends = LilyGo_T-Echo
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${LilyGo_T-Echo.build_flags}
-I src/helpers/ui
@ -109,7 +115,9 @@ build_flags =
-D MAX_GROUP_CHANNELS=40
-D OFFLINE_QUEUE_SIZE=256
-D UI_RECENT_LIST_SIZE=9
-D UI_SENSORS_PAGE=1
-D AUTO_SHUTDOWN_MILLIVOLTS=3300
-D QSPIFLASH=1
build_src_filter = ${LilyGo_T-Echo.build_src_filter}
+<../examples/companion_radio/*.cpp>
+<../examples/companion_radio/ui-new/*.cpp>

2
variants/lilygo_tlora_c6/platformio.ini
View file

@ -33,7 +33,7 @@ build_src_filter = ${esp32c6_base.build_src_filter}
[env:LilyGo_Tlora_C6_repeater]
extends = tlora_c6
build_src_filter = ${tlora_c6.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${tlora_c6.build_flags}
-D ADVERT_NAME='"Tlora C6 Repeater"'

4
variants/mesh_pocket/platformio.ini
View file

@ -67,6 +67,8 @@ build_flags =
[env:Mesh_pocket_companion_radio_ble]
extends = Mesh_pocket
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Mesh_pocket.build_flags}
-I examples/companion_radio/ui-new
@ -89,6 +91,8 @@ lib_deps =
[env:Mesh_pocket_companion_radio_usb]
extends = Mesh_pocket
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Mesh_pocket.build_flags}
-I examples/companion_radio/ui-new

4
variants/minewsemi_me25ls01/platformio.ini
View file

@ -50,6 +50,8 @@ lib_deps = ${nrf52840_me25ls01.lib_deps}
[env:Minewsemi_me25ls01_companion_radio_ble]
extends = me25ls01
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags = ${me25ls01.build_flags}
-I examples/companion_radio/ui-orig
-D MAX_CONTACTS=350
@ -147,6 +149,8 @@ lib_deps = ${me25ls01.lib_deps}
[env:Minewsemi_me25ls01_companion_radio_usb]
extends = me25ls01
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags = ${me25ls01.build_flags}
-I examples/companion_radio/ui-orig
-D MAX_CONTACTS=350

4
variants/nano_g2_ultra/nano-g2.h
View file

@ -52,8 +52,8 @@ public:
void powerOff() override {
// put GPS chip to sleep
digitalWrite(PIN_GPS_STANDBY, LOW);
// unset buzzer to prevent notification circuit activating on hibernate
#undef PIN_BUZZER
// TODO: unset buzzer to prevent notification circuit activating on hibernate
// needs to be set as silent or somehow stop using macros for pins
nrf_gpio_cfg_sense_input(digitalPinToInterrupt(PIN_USER_BTN), NRF_GPIO_PIN_NOPULL,
NRF_GPIO_PIN_SENSE_LOW);

5
variants/nano_g2_ultra/platformio.ini
View file

@ -31,6 +31,8 @@ upload_protocol = nrfutil
[env:Nano_G2_Ultra_companion_radio_ble]
extends = Nano_G2_Ultra
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Nano_G2_Ultra.build_flags}
-I src/helpers/ui
@ -62,12 +64,15 @@ lib_deps =
[env:Nano_G2_Ultra_companion_radio_usb]
extends = Nano_G2_Ultra
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${Nano_G2_Ultra.build_flags}
-I src/helpers/ui
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D QSPIFLASH=1
-D OFFLINE_QUEUE_SIZE=256
-D DISPLAY_CLASS=SH1106Display
-D PIN_BUZZER=4

4
variants/promicro/platformio.ini
View file

@ -86,6 +86,8 @@ lib_deps = ${Faketec.lib_deps}
[env:Faketec_companion_radio_usb]
extends = Faketec
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags = ${Faketec.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350
@ -104,6 +106,8 @@ lib_deps = ${Faketec.lib_deps}
[env:Faketec_companion_radio_ble]
extends = Faketec
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags = ${Faketec.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350

2
variants/rak3x72/platformio.ini
View file

@ -19,7 +19,7 @@ build_flags = ${rak3x72.build_flags}
-D ADVERT_NAME='"RAK3x72 Repeater"'
-D ADMIN_PASSWORD='"password"'
build_src_filter = ${rak3x72.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
[env:rak3x72-sensor]
extends = rak3x72

4
variants/rak4631/platformio.ini
View file

@ -64,6 +64,8 @@ build_src_filter = ${rak4631.build_src_filter}
[env:RAK_4631_companion_radio_usb]
extends = rak4631
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${rak4631.build_flags}
-I examples/companion_radio/ui-new
@ -83,6 +85,8 @@ lib_deps =
[env:RAK_4631_companion_radio_ble]
extends = rak4631
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${rak4631.build_flags}
-I examples/companion_radio/ui-new

6
variants/rak_wismesh_tag/RAKWismeshTagBoard.h
View file

@ -62,7 +62,8 @@ public:
digitalWrite(LED_PIN, HIGH);
#endif
#ifdef BUTTON_PIN
while(digitalRead(BUTTON_PIN));
// wismesh tag uses LOW to indicate button is pressed, wait until it goes HIGH to indicate it was released
while(digitalRead(BUTTON_PIN) == LOW);
#endif
#ifdef LED_GREEN
digitalWrite(LED_GREEN, LOW);
@ -72,7 +73,8 @@ public:
#endif
#ifdef BUTTON_PIN
nrf_gpio_cfg_sense_input(digitalPinToInterrupt(BUTTON_PIN), NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_SENSE_HIGH);
// configure button press to wake up when in powered off state
nrf_gpio_cfg_sense_input(digitalPinToInterrupt(BUTTON_PIN), NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW);
#endif
sd_power_system_off();

7
variants/rak_wismesh_tag/platformio.ini
View file

@ -35,6 +35,7 @@ build_src_filter = ${nrf52_base.build_src_filter}
lib_deps =
${nrf52_base.lib_deps}
${sensor_base.lib_deps}
end2endzone/NonBlockingRTTTL@^1.3.0
[env:RAK_WisMesh_Tag_Repeater]
extends = rak_wismesh_tag
@ -66,6 +67,8 @@ build_src_filter = ${rak_wismesh_tag.build_src_filter}
[env:RAK_WisMesh_Tag_companion_radio_usb]
extends = rak_wismesh_tag
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${rak_wismesh_tag.build_flags}
-I examples/companion_radio/ui-orig
@ -79,10 +82,11 @@ build_src_filter = ${rak_wismesh_tag.build_src_filter}
lib_deps =
${rak_wismesh_tag.lib_deps}
densaugeo/base64 @ ~1.4.0
end2endzone/NonBlockingRTTTL@^1.3.0
[env:RAK_WisMesh_Tag_companion_radio_ble]
extends = rak_wismesh_tag
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${rak_wismesh_tag.build_flags}
-I examples/companion_radio/ui-orig
@ -100,7 +104,6 @@ build_src_filter = ${rak_wismesh_tag.build_src_filter}
lib_deps =
${rak4631.lib_deps}
densaugeo/base64 @ ~1.4.0
end2endzone/NonBlockingRTTTL@^1.3.0
[env:RAK_WisMesh_Tag_sensor]
extends = rak4631

8
variants/sensecap_solar/platformio.ini
View file

@ -57,7 +57,7 @@ build_flags =
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${SenseCap_Solar.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
[env:SenseCap_Solar_room_server]
extends = SenseCap_Solar
@ -70,10 +70,12 @@ build_flags =
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${SenseCap_Solar.build_src_filter}
+<../examples/simple_room_server/main.cpp>
+<../examples/simple_room_server/*.cpp>
[env:SenseCap_Solar_companion_radio_ble]
extends = SenseCap_Solar
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags =
${SenseCap_Solar.build_flags}
-D MAX_CONTACTS=350
@ -92,6 +94,8 @@ lib_deps =
[env:SenseCap_Solar_companion_radio_usb]
extends = SenseCap_Solar
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags =
${SenseCap_Solar.build_flags}
-D MAX_CONTACTS=350

8
variants/t1000-e/platformio.ini
View file

@ -68,10 +68,12 @@ lib_deps = ${t1000-e.lib_deps}
[env:t1000e_companion_radio_usb]
extends = t1000-e
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags = ${t1000-e.build_flags}
-I examples/companion_radio/ui-orig
-D MAX_CONTACTS=100
-D MAX_GROUP_CHANNELS=8
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
-D OFFLINE_QUEUE_SIZE=256
@ -89,6 +91,8 @@ lib_deps = ${t1000-e.lib_deps}
[env:t1000e_companion_radio_ble]
extends = t1000-e
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags = ${t1000-e.build_flags}
-I examples/companion_radio/ui-orig
-D MAX_CONTACTS=350

12
variants/tenstar_c3/platformio.ini
View file

@ -26,7 +26,7 @@ build_src_filter = ${esp32_base.build_src_filter}
[env:Tenstar_C3_Repeater_sx1262]
extends = Tenstar_esp32_C3
build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Tenstar_esp32_C3.build_flags}
-D RADIO_CLASS=CustomSX1262
@ -48,7 +48,7 @@ lib_deps =
; extends = Tenstar_esp32_C3
; build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
; +<helpers/bridges/RS232Bridge.cpp>
; +<../examples/simple_repeater/main.cpp>
; +<../examples/simple_repeater/*.cpp>
; build_flags =
; ${Tenstar_esp32_C3.build_flags}
; -D RADIO_CLASS=CustomSX1262
@ -73,7 +73,7 @@ lib_deps =
extends = Tenstar_esp32_C3
build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
+<helpers/bridges/ESPNowBridge.cpp>
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Tenstar_esp32_C3.build_flags}
-D RADIO_CLASS=CustomSX1262
@ -96,7 +96,7 @@ lib_deps =
[env:Tenstar_C3_Repeater_sx1268]
extends = Tenstar_esp32_C3
build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Tenstar_esp32_C3.build_flags}
-D RADIO_CLASS=CustomSX1268
@ -117,7 +117,7 @@ lib_deps =
; extends = Tenstar_esp32_C3
; build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
; +<helpers/bridges/RS232Bridge.cpp>
; +<../examples/simple_repeater/main.cpp>
; +<../examples/simple_repeater/*.cpp>
; build_flags =
; ${Tenstar_esp32_C3.build_flags}
; -D RADIO_CLASS=CustomSX1268
@ -141,7 +141,7 @@ lib_deps =
extends = Tenstar_esp32_C3
build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
+<helpers/bridges/ESPNowBridge.cpp>
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Tenstar_esp32_C3.build_flags}
-D RADIO_CLASS=CustomSX1268

8
variants/thinknode_m1/platformio.ini
View file

@ -46,7 +46,7 @@ build_flags =
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${ThinkNode_M1.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
lib_deps =
${ThinkNode_M1.lib_deps}
@ -61,12 +61,14 @@ build_flags =
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${ThinkNode_M1.build_src_filter}
+<../examples/simple_room_server/main.cpp>
+<../examples/simple_room_server/*.cpp>
lib_deps =
${ThinkNode_M1.lib_deps}
[env:ThinkNode_M1_companion_radio_ble]
extends = ThinkNode_M1
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${ThinkNode_M1.build_flags}
-I src/helpers/ui
@ -99,6 +101,8 @@ lib_deps =
[env:ThinkNode_M1_companion_radio_usb]
extends = ThinkNode_M1
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${ThinkNode_M1.build_flags}
-I src/helpers/ui

2
variants/wio-e5-dev/platformio.ini
View file

@ -20,7 +20,7 @@ build_flags = ${lora_e5.build_flags}
-D ADVERT_NAME='"WIO-E5 Repeater"'
-D ADMIN_PASSWORD='"password"'
build_src_filter = ${lora_e5.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
[env:wio-e5_companion_radio_usb]
extends = lora_e5

2
variants/wio-e5-mini/platformio.ini
View file

@ -23,7 +23,7 @@ build_flags = ${lora_e5_mini.build_flags}
-D ADVERT_NAME='"wio-e5-mini Repeater"'
-D ADMIN_PASSWORD='"password"'
build_src_filter = ${lora_e5_mini.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
[env:wio-e5-mini-sensor]
extends = lora_e5_mini

9
variants/wio-tracker-l1/platformio.ini
View file

@ -55,13 +55,16 @@ lib_deps = ${WioTrackerL1.lib_deps}
[env:WioTrackerL1_companion_radio_usb]
extends = WioTrackerL1
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags = ${WioTrackerL1.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=100
-D MAX_GROUP_CHANNELS=8
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D DISPLAY_CLASS=SH1106Display
-D OFFLINE_QUEUE_SIZE=256
-D PIN_BUZZER=12
-D QSPIFLASH=1
; NOTE: DO NOT ENABLE --> -D MESH_PACKET_LOGGING=1
; NOTE: DO NOT ENABLE --> -D MESH_DEBUG=1
build_src_filter = ${WioTrackerL1.build_src_filter}
@ -77,6 +80,8 @@ lib_deps = ${WioTrackerL1.lib_deps}
[env:WioTrackerL1_companion_radio_ble]
extends = WioTrackerL1
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags = ${WioTrackerL1.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350

2
variants/xiao_c3/platformio.ini
View file

@ -22,7 +22,7 @@ build_src_filter = ${esp32_base.build_src_filter}
[env:Xiao_C3_Repeater_sx1262]
extends = Xiao_esp32_C3
build_src_filter = ${Xiao_esp32_C3.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Xiao_esp32_C3.build_flags}
-D RADIO_CLASS=CustomSX1262

6
variants/xiao_c6/platformio.ini
View file

@ -33,7 +33,7 @@ build_src_filter = ${esp32c6_base.build_src_filter}
[env:Xiao_C6_Repeater]
extends = Xiao_C6
build_src_filter = ${Xiao_C6.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Xiao_C6.build_flags}
-D ADVERT_NAME='"Xiao C6 Repeater"'
@ -93,7 +93,7 @@ build_flags =
[env:Meshimi_Repeater]
extends = Meshimi
build_src_filter = ${Meshimi.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Meshimi.build_flags}
-D ADVERT_NAME='"Meshimi Repeater"'
@ -150,7 +150,7 @@ build_flags =
[env:WHY2025_badge_Repeater]
extends = WHY2025_badge
build_src_filter = ${WHY2025_badge.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${WHY2025_badge.build_flags}
-D ADVERT_NAME='"WHY2025 Badge Repeater"'

9
variants/xiao_nrf52/platformio.ini
View file

@ -57,6 +57,8 @@ upload_protocol = nrfutil
[env:Xiao_nrf52_companion_radio_ble]
extends = Xiao_nrf52
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags =
${Xiao_nrf52.build_flags}
-D MAX_CONTACTS=350
@ -76,10 +78,13 @@ lib_deps =
[env:Xiao_nrf52_companion_radio_usb]
extends = Xiao_nrf52
board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
board_upload.maximum_size = 708608
build_flags =
${Xiao_nrf52.build_flags}
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D QSPIFLASH=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Xiao_nrf52.build_src_filter}
@ -107,7 +112,7 @@ build_flags =
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Xiao_nrf52.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
[env:Xiao_nrf52_alt_pinout_repeater]
extends = env:Xiao_nrf52_repeater
@ -126,4 +131,4 @@ build_flags =
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Xiao_nrf52.build_src_filter}
+<../examples/simple_room_server/main.cpp>
+<../examples/simple_room_server/*.cpp>

6
variants/xiao_s3_wio/platformio.ini
View file

@ -30,7 +30,7 @@ build_src_filter = ${esp32_base.build_src_filter}
[env:Xiao_S3_WIO_Repeater]
extends = Xiao_S3_WIO
build_src_filter = ${Xiao_S3_WIO.build_src_filter}
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Xiao_S3_WIO.build_flags}
-D ADVERT_NAME='"XiaoS3 Repeater"'
@ -48,7 +48,7 @@ lib_deps =
; extends = Xiao_S3_WIO
; build_src_filter = ${Xiao_S3_WIO.build_src_filter}
; +<helpers/bridges/RS232Bridge.cpp>
; +<../examples/simple_repeater/main.cpp>
; +<../examples/simple_repeater/*.cpp>
; build_flags =
; ${Xiao_S3_WIO.build_flags}
; -D ADVERT_NAME='"RS232 Bridge"'
@ -69,7 +69,7 @@ lib_deps =
extends = Xiao_S3_WIO
build_src_filter = ${Xiao_S3_WIO.build_src_filter}
+<helpers/bridges/ESPNowBridge.cpp>
+<../examples/simple_repeater/main.cpp>
+<../examples/simple_repeater/*.cpp>
build_flags =
${Xiao_S3_WIO.build_flags}
-D ADVERT_NAME='"ESPNow Bridge"'