mirror of
https://github.com/agessaman/MeshCore.git
synced 2026-08-27 00:19:52 +00:00
2186 lines
83 KiB
C++
2186 lines
83 KiB
C++
#include "MyMesh.h"
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#include <algorithm>
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#include <helpers/RxReservePacketManager.h>
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#if defined(WITH_MQTT_NEIGHBORS)
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#include <helpers/MQTTConnectionPolicy.h> // kSyncedClockEpoch
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#endif
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#define ANON_REQ_TYPE_REGIONS 0x01 // client side of the anon-regions scope query (neighbors feature)
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#define REPLY_DELAY_MILLIS 1500
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#define PUSH_NOTIFY_DELAY_MILLIS 2000
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#define SYNC_PUSH_INTERVAL 1200
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#define PUSH_ACK_TIMEOUT_FLOOD 12000
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#define PUSH_TIMEOUT_BASE 4000
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#define PUSH_ACK_TIMEOUT_FACTOR 2000
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#define POST_SYNC_DELAY_SECS 6
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#define FIRMWARE_VER_LEVEL 1
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#define REQ_TYPE_GET_STATUS 0x01 // same as _GET_STATS
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#define REQ_TYPE_KEEP_ALIVE 0x02
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#define REQ_TYPE_GET_TELEMETRY_DATA 0x03
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#define REQ_TYPE_GET_ACCESS_LIST 0x05
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#define RESP_SERVER_LOGIN_OK 0 // response to ANON_REQ
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// Best-effort bound for the queued CLI reply before OTA blocks the loop and
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// reboots. Do not let a busy or duty-limited channel stall the update forever.
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#define OTA_TX_DRAIN_TIMEOUT_MS 5000
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#define LAZY_CONTACTS_WRITE_DELAY 5000
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struct ServerStats {
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uint16_t batt_milli_volts;
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uint16_t curr_tx_queue_len;
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int16_t noise_floor;
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int16_t last_rssi;
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uint32_t n_packets_recv;
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uint32_t n_packets_sent;
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uint32_t total_air_time_secs;
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uint32_t total_up_time_secs;
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uint32_t n_sent_flood, n_sent_direct;
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uint32_t n_recv_flood, n_recv_direct;
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uint16_t err_events; // was 'n_full_events'
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int16_t last_snr; // x 4
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uint16_t n_direct_dups, n_flood_dups;
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uint16_t n_posted, n_post_push;
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};
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void MyMesh::addPost(ClientInfo *client, const char *postData) {
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storePost(client->id, postData);
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}
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void MyMesh::addSystemPost(const char *postData) {
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if (!postData || postData[0] == 0) return;
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MESH_DEBUG_PRINTLN("room.post: addSystemPost: %s", postData);
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storePost(self_id, postData);
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}
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void MyMesh::storePost(const mesh::Identity &author, const char *postData) {
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int idx = next_post_idx;
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// TODO: suggested postData format: <title>/<descrption>
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posts[idx].author = author; // add to cyclic queue
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StrHelper::strncpy(posts[idx].text, postData, MAX_POST_TEXT_LEN);
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posts[idx].post_timestamp = getRTCClock()->getCurrentTimeUnique();
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MESH_DEBUG_PRINTLN("room.post: storePost idx=%d text=%s", idx, posts[idx].text);
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MESH_DEBUG_PRINTLN("room.post: timestamp=%u", posts[idx].post_timestamp);
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next_post_idx = (next_post_idx + 1) % MAX_UNSYNCED_POSTS;
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next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS);
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_num_posted++; // stats
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MESH_DEBUG_PRINTLN("room.post: next_post_idx=%d num_posted=%d push scheduled", next_post_idx, _num_posted);
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}
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void MyMesh::pushPostToClient(ClientInfo *client, PostInfo &post) {
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MESH_DEBUG_PRINTLN("room.post: pushPostToClient text=%s", post.text);
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int len = 0;
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memcpy(&reply_data[len], &post.post_timestamp, 4);
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len += 4; // this is a PAST timestamp... but should be accepted by client
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uint8_t attempt;
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getRNG()->random(&attempt, 1); // need this for re-tries, so packet hash (and ACK) will be different
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reply_data[len++] = (TXT_TYPE_SIGNED_PLAIN << 2) | (attempt & 3); // 'signed' plain text
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// encode prefix of post.author.pub_key
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memcpy(&reply_data[len], post.author.pub_key, 4);
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len += 4; // just first 4 bytes
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int text_len = strlen(post.text);
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memcpy(&reply_data[len], post.text, text_len);
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len += text_len;
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// calc expected ACK reply
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mesh::Utils::sha256((uint8_t *)&client->extra.room.pending_ack, 4, reply_data, len, client->id.pub_key, PUB_KEY_SIZE);
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client->extra.room.push_post_timestamp = post.post_timestamp;
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auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, client->shared_secret, reply_data, len);
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if (reply) {
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if (client->out_path_len == OUT_PATH_UNKNOWN) {
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unsigned long delay_millis = 0;
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sendFloodScoped(default_scope, reply, delay_millis, _prefs.path_hash_mode + 1); // REVISIT
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client->extra.room.ack_timeout = futureMillis(PUSH_ACK_TIMEOUT_FLOOD);
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} else {
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sendDirect(reply, client->out_path, client->out_path_len);
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uint8_t path_hash_count = client->out_path_len & 63;
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client->extra.room.ack_timeout = futureMillis(PUSH_TIMEOUT_BASE + PUSH_ACK_TIMEOUT_FACTOR * (path_hash_count + 1));
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}
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_num_post_pushes++; // stats
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} else {
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client->extra.room.pending_ack = 0;
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MESH_DEBUG_PRINTLN("Unable to push post to client");
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}
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}
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uint8_t MyMesh::getUnsyncedCount(ClientInfo *client) {
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uint8_t count = 0;
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for (int k = 0; k < MAX_UNSYNCED_POSTS; k++) {
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if (posts[k].post_timestamp > client->extra.room.sync_since // is new post for this Client?
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&& !posts[k].author.matches(client->id)) { // don't push posts to the author
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count++;
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}
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}
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return count;
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}
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bool MyMesh::processAck(const uint8_t *data) {
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for (int i = 0; i < acl.getNumClients(); i++) {
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auto client = acl.getClientByIdx(i);
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if (client->extra.room.pending_ack && memcmp(data, &client->extra.room.pending_ack, 4) == 0) { // got an ACK from Client!
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client->extra.room.pending_ack = 0; // clear this, so next push can happen
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client->extra.room.push_failures = 0;
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client->extra.room.sync_since = client->extra.room.push_post_timestamp; // advance Client's SINCE timestamp, to sync next post
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return true;
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}
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}
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return false;
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}
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mesh::Packet *MyMesh::createSelfAdvert() {
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uint8_t app_data[MAX_ADVERT_DATA_SIZE];
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uint8_t app_data_len = _cli.buildAdvertData(ADV_TYPE_ROOM, app_data);
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return createAdvert(self_id, app_data, app_data_len);
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}
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File MyMesh::openAppend(const char *fname) {
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#if defined(NRF52_PLATFORM)
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return _fs->open(fname, FILE_O_WRITE);
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#elif defined(RP2040_PLATFORM)
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return _fs->open(fname, "a");
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#else
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return _fs->open(fname, "a", true);
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#endif
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}
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int MyMesh::handleRequest(ClientInfo *sender, uint32_t sender_timestamp, uint8_t *payload,
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size_t payload_len) {
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// uint32_t now = getRTCClock()->getCurrentTimeUnique();
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// memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
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memcpy(reply_data, &sender_timestamp, 4); // reflect sender_timestamp back in response packet (kind of like a 'tag')
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if (payload[0] == REQ_TYPE_GET_STATUS) {
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ServerStats stats;
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stats.batt_milli_volts = board.getBattMilliVolts();
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stats.curr_tx_queue_len = _mgr->getOutboundCount(0xFFFFFFFF);
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stats.noise_floor = (int16_t)_radio->getNoiseFloor();
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stats.last_rssi = (int16_t)radio_driver.getLastRSSI();
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stats.n_packets_recv = radio_driver.getPacketsRecv();
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stats.n_packets_sent = radio_driver.getPacketsSent();
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stats.total_air_time_secs = getTotalAirTime() / 1000;
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stats.total_up_time_secs = uptime_millis / 1000;
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stats.n_sent_flood = getNumSentFlood();
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stats.n_sent_direct = getNumSentDirect();
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stats.n_recv_flood = getNumRecvFlood();
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stats.n_recv_direct = getNumRecvDirect();
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stats.err_events = _err_flags;
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stats.last_snr = (int16_t)(radio_driver.getLastSNR() * 4);
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stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
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stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
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stats.n_posted = _num_posted;
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stats.n_post_push = _num_post_pushes;
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memcpy(&reply_data[4], &stats, sizeof(stats));
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return 4 + sizeof(stats);
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}
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if (payload[0] == REQ_TYPE_GET_TELEMETRY_DATA) {
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uint8_t perm_mask = ~(payload[1]); // NEW: first reserved byte (of 4), is now inverse mask to apply to permissions
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telemetry.reset();
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telemetry.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
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// query other sensors -- target specific
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if ((sender->permissions & PERM_ACL_ROLE_MASK) == PERM_ACL_GUEST) {
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perm_mask = 0x00; // just base telemetry allowed
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}
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sensors.querySensors(perm_mask, telemetry);
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// This default temperature will be overridden by external sensors (if any)
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float temperature = board.getMCUTemperature();
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if(!isnan(temperature)) { // Supported boards with built-in temperature sensor. ESP32-C3 may return NAN
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telemetry.addTemperature(TELEM_CHANNEL_SELF, temperature); // Built-in MCU Temperature
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}
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uint8_t tlen = telemetry.getSize();
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memcpy(&reply_data[4], telemetry.getBuffer(), tlen);
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return 4 + tlen; // reply_len
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}
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if (payload[0] == REQ_TYPE_GET_ACCESS_LIST && sender->isAdmin()) {
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uint8_t res1 = payload[1]; // reserved for future (extra query params)
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uint8_t res2 = payload[2];
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if (res1 == 0 && res2 == 0) {
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uint8_t ofs = 4;
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for (int i = 0; i < acl.getNumClients() && ofs + 7 <= sizeof(reply_data) - 4; i++) {
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auto c = acl.getClientByIdx(i);
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if (!c->isAdmin()) continue; // skip non-Admin entries
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memcpy(&reply_data[ofs], c->id.pub_key, 6); ofs += 6; // just 6-byte pub_key prefix
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reply_data[ofs++] = c->permissions;
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}
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return ofs;
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}
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}
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return 0; // unknown command
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}
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void MyMesh::logRxRaw(float snr, float rssi, const uint8_t raw[], int len) {
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#if MESH_PACKET_LOGGING
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if (Serial.availableForWrite() > 0) {
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Serial.print(getLogDateTime());
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Serial.print(" RAW: ");
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mesh::Utils::printHex(Serial, raw, len);
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Serial.println();
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}
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#endif
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#ifdef WITH_MQTT_BRIDGE
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if (_prefs.bridge_enabled) {
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// Store raw radio data for MQTT messages (same as repeater)
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if (bridge) bridge->storeRawRadioData(raw, len, snr, rssi);
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}
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#endif
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}
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void MyMesh::logRx(mesh::Packet *pkt, int len, float score) {
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#ifdef WITH_MQTT_BRIDGE
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// MQTT bridge: always feed RX packets — bridge decides based on mqtt.rx setting
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if (_prefs.bridge_enabled && bridge) bridge->onPacketReceived(pkt);
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#endif
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if (_logging) {
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File f = openAppend(PACKET_LOG_FILE);
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if (f) {
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f.print(getLogDateTime());
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f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d", len,
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pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
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(int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score * 1000));
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if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ ||
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pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
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f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
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} else {
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f.printf("\n");
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}
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f.close();
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}
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}
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}
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void MyMesh::logTx(mesh::Packet *pkt, int len) {
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#if defined(WITH_MQTT_NEIGHBORS)
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if (neighbor_discover_active && pkt == neighbor_discover_request
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&& neighbor_discover_next < neighbor_discover_count) {
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NeighborDiscoverEntry& entry = neighbor_discover[neighbor_discover_next];
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if (entry.status == ND_QUEUED) {
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entry.status = ND_PENDING;
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neighbor_discover_queried_count++;
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neighbor_discover_request = NULL;
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neighbor_discover_until = futureMillis(neighborDiscoverQueryTimeoutMs());
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}
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}
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#endif
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#ifdef WITH_MQTT_BRIDGE
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// MQTT bridge: always feed TX packets — bridge decides based on mqtt.tx setting
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if (_prefs.bridge_enabled && bridge) bridge->sendPacket(pkt);
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#endif
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if (_logging) {
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File f = openAppend(PACKET_LOG_FILE);
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if (f) {
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f.print(getLogDateTime());
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f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)", len, pkt->getPayloadType(),
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pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
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if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ ||
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pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
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f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
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} else {
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f.printf("\n");
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}
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f.close();
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}
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}
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}
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void MyMesh::logTxFail(mesh::Packet *pkt, int len) {
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#if defined(WITH_MQTT_NEIGHBORS)
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if (neighbor_discover_active && pkt == neighbor_discover_request
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&& neighbor_discover_next < neighbor_discover_count) {
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NeighborDiscoverEntry& entry = neighbor_discover[neighbor_discover_next];
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if (entry.status == ND_QUEUED) {
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entry.status = ND_SEND_FAILED;
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neighbor_discover_request = NULL;
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neighbor_discover_until = 0;
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}
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}
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#endif
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if (_logging) {
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File f = openAppend(PACKET_LOG_FILE);
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if (f) {
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f.print(getLogDateTime());
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f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n", len, pkt->getPayloadType(),
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pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
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f.close();
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}
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}
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}
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int MyMesh::calcRxDelay(float score, uint32_t air_time) const {
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if (_prefs.rx_delay_base <= 0.0f) return 0;
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return (int)((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
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}
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const char *MyMesh::getLogDateTime() {
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static char tmp[32];
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uint32_t now = getRTCClock()->getCurrentTime();
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DateTime dt = DateTime(now);
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sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(),
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dt.year());
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return tmp;
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}
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uint32_t MyMesh::getRetransmitDelay(const mesh::Packet *packet) {
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uint32_t t = (_radio->getEstAirtimeFor(packet->getPathByteLen() + packet->payload_len + 2) * _prefs.tx_delay_factor);
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return getRNG()->nextInt(0, 5*t + 1);
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}
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uint32_t MyMesh::getDirectRetransmitDelay(const mesh::Packet *packet) {
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uint32_t t = (_radio->getEstAirtimeFor(packet->getPathByteLen() + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
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return getRNG()->nextInt(0, 5*t + 1);
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}
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bool MyMesh::allowPacketForward(const mesh::Packet *packet) {
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if (_prefs.disable_fwd) return false;
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if (packet->isRouteFlood()
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&& mesh::isFloodHopLimitExceeded(packet, _prefs.flood_max, _prefs.flood_max_unscoped, _prefs.flood_max_advert)) {
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return false;
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}
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return true;
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}
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mesh::DispatcherAction MyMesh::onRecvPacket(mesh::Packet* pkt) {
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if (pkt->getRouteType() == ROUTE_TYPE_TRANSPORT_FLOOD) {
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recv_pkt_region = region_map.findMatch(pkt, REGION_DENY_FLOOD);
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} else if (pkt->getRouteType() == ROUTE_TYPE_FLOOD) {
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if (region_map.getWildcard().flags & REGION_DENY_FLOOD) {
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recv_pkt_region = NULL;
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} else {
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recv_pkt_region = ®ion_map.getWildcard();
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}
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} else {
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recv_pkt_region = NULL;
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}
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return Mesh::onRecvPacket(pkt);
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}
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void MyMesh::onAnonDataRecv(mesh::Packet *packet, const uint8_t *secret, const mesh::Identity &sender,
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uint8_t *data, size_t len) {
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if (packet->getPayloadType() == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin
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// client (unknown at this stage)
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uint32_t sender_timestamp, sender_sync_since;
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memcpy(&sender_timestamp, data, 4);
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memcpy(&sender_sync_since, &data[4], 4); // sender's "sync messags SINCE x" timestamp
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data[len] = 0; // ensure null terminator
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ClientInfo* client = NULL;
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if (data[8] == 0) { // blank password, just check if sender is in ACL
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client = acl.getClient(sender.pub_key, PUB_KEY_SIZE);
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if (client == NULL) {
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#if MESH_DEBUG
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MESH_DEBUG_PRINTLN("Login, sender not in ACL");
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#endif
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}
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}
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if (client == NULL) {
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uint8_t perm;
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if (strcmp((char *)&data[8], _prefs.password) == 0) { // check for valid admin password
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perm = PERM_ACL_ADMIN;
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} else {
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if (strcmp((char *)&data[8], _prefs.guest_password) == 0) { // check the room/public password
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perm = PERM_ACL_READ_WRITE;
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} else if (_prefs.allow_read_only) {
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perm = PERM_ACL_GUEST;
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} else {
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MESH_DEBUG_PRINTLN("Incorrect room password");
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return; // no response. Client will timeout
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}
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}
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|
client = acl.putClient(sender, 0); // 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->last_timestamp = sender_timestamp;
|
|
client->extra.room.sync_since = sender_sync_since;
|
|
client->extra.room.pending_ack = 0;
|
|
client->extra.room.push_failures = 0;
|
|
|
|
client->last_activity = getRTCClock()->getCurrentTime();
|
|
client->permissions &= ~0x03;
|
|
client->permissions |= perm;
|
|
memcpy(client->shared_secret, secret, PUB_KEY_SIZE);
|
|
|
|
dirty_contacts_expiry = futureMillis(LAZY_CONTACTS_WRITE_DELAY);
|
|
}
|
|
|
|
if (packet->isRouteFlood()) {
|
|
client->out_path_len = OUT_PATH_UNKNOWN; // need to rediscover out_path
|
|
}
|
|
|
|
uint32_t 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] = 0; // Legacy: was recommended keep-alive interval (secs / 16)
|
|
reply_data[6] = (client->isAdmin() ? 1 : (client->permissions == 0 ? 2 : 0));
|
|
// LEGACY: reply_data[7] = getUnsyncedCount(client);
|
|
reply_data[7] = client->permissions; // NEW
|
|
getRNG()->random(&reply_data[8], 4); // random blob to help packet-hash uniqueness
|
|
reply_data[12] = FIRMWARE_VER_LEVEL; // New field
|
|
|
|
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->shared_secret, packet->path, packet->path_len,
|
|
PAYLOAD_TYPE_RESPONSE, reply_data, 13);
|
|
if (path) sendFloodReply(path, SERVER_RESPONSE_DELAY, packet->getPathHashSize());
|
|
} else {
|
|
mesh::Packet *reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->shared_secret, reply_data, 13);
|
|
if (reply) {
|
|
if (client->out_path_len != OUT_PATH_UNKNOWN) { // we have an out_path, so send DIRECT
|
|
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
|
|
} else {
|
|
sendFloodReply(reply, SERVER_RESPONSE_DELAY, packet->getPathHashSize());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int MyMesh::searchPeersByHash(const uint8_t *hash) {
|
|
int n = 0;
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
if (neighbor_discover_active) {
|
|
for (int i = 0; i < neighbor_discover_count && n < MAX_CLIENTS; i++) {
|
|
auto& entry = neighbor_discover[i];
|
|
// ACL clients already have a matching peer entry and shared secret. Adding
|
|
// a second overlay entry would decrypt first and intercept their normal
|
|
// CLI/request traffic for the duration of discovery.
|
|
if (acl.getClient(entry.id.pub_key, PUB_KEY_SIZE) != nullptr) continue;
|
|
if (entry.heard_timestamp > 0 && entry.id.isHashMatch(hash)) {
|
|
matching_peer_indexes[n++] = NEIGHBOR_DISCOVER_PEER_BASE + i;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
for (int i = 0; i < acl.getNumClients() && n < MAX_CLIENTS; i++) {
|
|
if (acl.getClientByIdx(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 defined(WITH_MQTT_NEIGHBORS)
|
|
if (neighbor_discover_active && i >= NEIGHBOR_DISCOVER_PEER_BASE) {
|
|
int oi = i - NEIGHBOR_DISCOVER_PEER_BASE;
|
|
if (oi >= 0 && oi < neighbor_discover_count) {
|
|
self_id.calcSharedSecret(dest_secret, neighbor_discover[oi].id);
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
if (i >= 0 && i < acl.getNumClients()) {
|
|
// lookup pre-calculated shared_secret
|
|
memcpy(dest_secret, acl.getClientByIdx(i)->shared_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 defined(WITH_MQTT_NEIGHBORS)
|
|
// Overlay response: a heard neighbour (not an ACL client) answering our
|
|
// anon-regions scope query. Consume it and stop — it is not a client packet.
|
|
if (neighbor_discover_active && i >= NEIGHBOR_DISCOVER_PEER_BASE) {
|
|
int oi = i - NEIGHBOR_DISCOVER_PEER_BASE;
|
|
if (type == PAYLOAD_TYPE_RESPONSE && oi >= 0 && oi < neighbor_discover_count) {
|
|
handleNeighborDiscoverResponse(oi, data, len);
|
|
}
|
|
return;
|
|
}
|
|
#endif
|
|
if (i < 0 || i >= acl.getNumClients()) { // 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 = acl.getClientByIdx(i);
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
// A neighbour that IS an ACL client resolves to a normal index above, so a
|
|
// scope-query response from it lands here — match it against the overlay.
|
|
if (neighbor_discover_active && type == PAYLOAD_TYPE_RESPONSE) {
|
|
for (int oi = 0; oi < neighbor_discover_count; oi++) {
|
|
if (client->id.matches(neighbor_discover[oi].id)
|
|
&& handleNeighborDiscoverResponse(oi, data, len)) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
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)
|
|
uint8_t 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->extra.room.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->isAdmin()) {
|
|
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->permissions & PERM_ACL_ROLE_MASK) == PERM_ACL_GUEST) {
|
|
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 == OUT_PATH_UNKNOWN) {
|
|
mesh::Packet *ack = createAck(ack_hash);
|
|
if (ack) sendFloodReply(ack, TXT_ACK_DELAY, packet->getPathHashSize());
|
|
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 == OUT_PATH_UNKNOWN) {
|
|
sendFloodReply(reply, delay_millis + SERVER_RESPONSE_DELAY, packet->getPathHashSize());
|
|
} 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->extra.room.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->extra.room.sync_since = forceSince; // force-update the 'sync since'
|
|
}
|
|
|
|
client->extra.room.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 != OUT_PATH_UNKNOWN) {
|
|
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) sendFloodReply(path, SERVER_RESPONSE_DELAY, packet->getPathHashSize());
|
|
} else {
|
|
mesh::Packet *reply = createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
|
|
if (reply) {
|
|
if (client->out_path_len != OUT_PATH_UNKNOWN) { // we have an out_path, so send DIRECT
|
|
sendDirect(reply, client->out_path, client->out_path_len, SERVER_RESPONSE_DELAY);
|
|
} else {
|
|
sendFloodReply(reply, SERVER_RESPONSE_DELAY, packet->getPathHashSize());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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 < acl.getNumClients()) { // 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 = acl.getClientByIdx(i);
|
|
client->out_path_len = mesh::Packet::copyPath(client->out_path, path, path_len); // store a copy of path, for sendDirect()
|
|
client->last_activity = getRTCClock()->getCurrentTime();
|
|
} 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
|
|
}
|
|
}
|
|
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
|
|
#define CTL_TYPE_NODE_DISCOVER_REQ 0x80
|
|
#define CTL_TYPE_NODE_DISCOVER_RESP 0x90
|
|
|
|
void MyMesh::putNeighbour(const mesh::Identity &id, uint32_t timestamp, float snr) {
|
|
// 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);
|
|
}
|
|
|
|
static bool isShare(const mesh::Packet *packet) {
|
|
if (packet->hasTransportCodes()) {
|
|
return packet->transport_codes[0] == 0 && packet->transport_codes[1] == 0; // codes { 0, 0 } means 'send to nowhere'
|
|
}
|
|
return false;
|
|
}
|
|
|
|
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 (and not via 'Share'), add it to neighbours
|
|
if (packet->getPathHashCount() == 0 && !isShare(packet)) {
|
|
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::onControlDataRecv(mesh::Packet* packet) {
|
|
uint8_t type = packet->payload[0] & 0xF0; // just test upper 4 bits
|
|
// A room server is ADV_TYPE_ROOM, so it does NOT answer node-discover requests
|
|
// (those filter for repeaters). It only records repeater responses to its own
|
|
// discovery, to build the neighbour table.
|
|
if (type == CTL_TYPE_NODE_DISCOVER_RESP && packet->payload_len >= 6) {
|
|
uint8_t node_type = packet->payload[0] & 0x0F;
|
|
if (node_type != ADV_TYPE_REPEATER) {
|
|
return;
|
|
}
|
|
if (packet->payload_len < 6 + PUB_KEY_SIZE) {
|
|
MESH_DEBUG_PRINTLN("onControlDataRecv: DISCOVER_RESP pubkey too short: %d", (uint32_t)packet->payload_len);
|
|
return;
|
|
}
|
|
|
|
if (pending_discover_tag == 0 || millisHasNowPassed(pending_discover_until)) {
|
|
pending_discover_tag = 0;
|
|
return;
|
|
}
|
|
uint32_t tag;
|
|
memcpy(&tag, &packet->payload[2], 4);
|
|
if (tag != pending_discover_tag) {
|
|
return;
|
|
}
|
|
|
|
mesh::Identity id(&packet->payload[6]);
|
|
if (id.matches(self_id)) {
|
|
return;
|
|
}
|
|
putNeighbour(id, getRTCClock()->getCurrentTime(), packet->getSNR());
|
|
}
|
|
}
|
|
|
|
void MyMesh::sendNodeDiscoverReq() {
|
|
uint8_t data[10];
|
|
data[0] = CTL_TYPE_NODE_DISCOVER_REQ; // prefix_only=0
|
|
data[1] = (1 << ADV_TYPE_REPEATER);
|
|
getRNG()->random(&data[2], 4); // tag
|
|
memcpy(&pending_discover_tag, &data[2], 4);
|
|
pending_discover_until = futureMillis(60000);
|
|
uint32_t since = 0;
|
|
memcpy(&data[6], &since, 4);
|
|
|
|
auto pkt = createControlData(data, sizeof(data));
|
|
if (pkt) {
|
|
sendZeroHop(pkt);
|
|
}
|
|
}
|
|
|
|
#endif // WITH_MQTT_NEIGHBORS
|
|
|
|
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, *createObserverPacketManager(32), tables),
|
|
region_map(key_store), temp_map(key_store),
|
|
_cli(board, rtc, sensors, region_map, acl, &_prefs, this),
|
|
telemetry(MAX_PACKET_PAYLOAD - 4)
|
|
#ifdef WITH_MQTT_BRIDGE
|
|
, bridge(nullptr)
|
|
#endif
|
|
{
|
|
last_millis = 0;
|
|
uptime_millis = 0;
|
|
next_local_advert = next_flood_advert = 0;
|
|
dirty_contacts_expiry = 0;
|
|
_logging = false;
|
|
region_load_active = false;
|
|
set_radio_at = revert_radio_at = 0;
|
|
recv_pkt_region = NULL;
|
|
|
|
// defaults
|
|
_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;
|
|
_prefs.direct_tx_delay_factor = 0.2f; // was zero
|
|
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 = 47; // 47 hours
|
|
_prefs.flood_max = 64;
|
|
_prefs.flood_max_unscoped = 64;
|
|
_prefs.flood_max_advert = 8;
|
|
_prefs.interference_threshold = 0; // disabled
|
|
_prefs.radio_fem_rxgain = 1; // LoRa FEM RX gain on by default (FEM boards)
|
|
_prefs.cad_enabled = 0; // hardware CAD before TX (off by default; 'set cad on')
|
|
#ifdef ROOM_PASSWORD
|
|
StrHelper::strncpy(_prefs.guest_password, ROOM_PASSWORD, sizeof(_prefs.guest_password));
|
|
#endif
|
|
|
|
// GPS defaults
|
|
_prefs.gps_enabled = 0;
|
|
_prefs.gps_interval = 0;
|
|
_prefs.advert_loc_policy = ADVERT_LOC_PREFS;
|
|
|
|
#if defined(USE_SX1262) || defined(USE_SX1268)
|
|
#ifdef SX126X_RX_BOOSTED_GAIN
|
|
_prefs.rx_boosted_gain = SX126X_RX_BOOSTED_GAIN;
|
|
#else
|
|
_prefs.rx_boosted_gain = 1; // enabled by default;
|
|
#endif
|
|
#endif
|
|
_prefs.radio_fem_rxgain = 1;
|
|
_prefs.radio_fem_txgain = 0;
|
|
|
|
// Observer defaults (alert.*, etc.) moved to applyMQTTDefaults() — they live
|
|
// in /mqtt.json now, not NodePrefs.
|
|
|
|
// bridge defaults (same as repeater)
|
|
_prefs.bridge_enabled = 1; // enabled
|
|
_prefs.bridge_delay = 500; // milliseconds
|
|
_prefs.bridge_pkt_src = 1; // logRx (RX packets)
|
|
_prefs.bridge_baud = 115200; // baud rate
|
|
_prefs.bridge_channel = 1; // channel 1
|
|
|
|
// MQTT/WiFi/timezone defaults live in /mqtt.json now (see applyMQTTDefaults).
|
|
|
|
next_post_idx = 0;
|
|
next_client_idx = 0;
|
|
next_push = 0;
|
|
memset(posts, 0, sizeof(posts));
|
|
_num_posted = _num_post_pushes = 0;
|
|
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
pending_discover_tag = 0;
|
|
pending_discover_until = 0;
|
|
neighbor_discover_count = 0;
|
|
neighbor_discover_next = 0;
|
|
neighbor_discover_publish_count = 0;
|
|
neighbor_discover_queried_count = 0;
|
|
neighbor_discover_json_size = 0;
|
|
neighbor_discover_truncated = false;
|
|
neighbor_discover_active = false;
|
|
neighbor_table_refresh_active = false;
|
|
neighbor_table_refresh_periodic = false;
|
|
neighbor_discover_until = 0;
|
|
neighbor_discover_request = NULL;
|
|
next_neighbors_publish = 0;
|
|
self_scopes_buf[0] = 0;
|
|
self_default_scope_buf[0] = 0;
|
|
neighbor_discover_origin[0] = 0;
|
|
memset(neighbours, 0, sizeof(neighbours));
|
|
#endif
|
|
|
|
memset(default_scope.key, 0, sizeof(default_scope.key));
|
|
}
|
|
|
|
void MyMesh::begin(FILESYSTEM *fs) {
|
|
mesh::Mesh::begin();
|
|
_fs = fs;
|
|
// load persisted prefs
|
|
_cli.loadPrefs(_fs);
|
|
|
|
acl.load(_fs, self_id);
|
|
region_map.load(_fs);
|
|
|
|
// establish default-scope
|
|
{
|
|
RegionEntry* r = region_map.getDefaultRegion();
|
|
if (r) {
|
|
region_map.getTransportKeysFor(*r, &default_scope, 1);
|
|
} else {
|
|
#ifdef DEFAULT_FLOOD_SCOPE_NAME
|
|
r = region_map.findByName(DEFAULT_FLOOD_SCOPE_NAME);
|
|
if (r == NULL) {
|
|
r = region_map.putRegion(DEFAULT_FLOOD_SCOPE_NAME, 0); // auto-create the default scope region
|
|
if (r) { r->flags = 0; } // Allow-flood
|
|
}
|
|
if (r) {
|
|
region_map.setDefaultRegion(r);
|
|
region_map.getTransportKeysFor(*r, &default_scope, 1);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
radio_driver.setParams(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
|
|
radio_driver.setTxPower(_prefs.tx_power_dbm);
|
|
radio_driver.setRxBoostedGainMode(_prefs.rx_boosted_gain);
|
|
board.setLoRaFemLnaEnabled(_prefs.radio_fem_rxgain); // LoRa FEM LNA (FEM boards only)
|
|
board.setLoRaFemPaGainEnabled(_prefs.radio_fem_txgain);
|
|
|
|
updateAdvertTimer();
|
|
updateFloodAdvertTimer();
|
|
|
|
board.setAdcMultiplier(_prefs.adc_multiplier);
|
|
|
|
#if ENV_INCLUDE_GPS == 1
|
|
applyGpsPrefs();
|
|
#endif
|
|
#ifdef WITH_MQTT_BRIDGE
|
|
if (_prefs.bridge_enabled) {
|
|
// Defer construction to avoid static init crashes on ESP32 classic
|
|
bridge = new MQTTBridge(&_prefs, _cli.getObserverPrefs(), _mgr, getRTCClock(), &self_id);
|
|
if (bridge) {
|
|
// Set device public key for MQTT topics
|
|
char device_id[65];
|
|
mesh::LocalIdentity self_id = getSelfId();
|
|
mesh::Utils::toHex(device_id, self_id.pub_key, PUB_KEY_SIZE);
|
|
MESH_DEBUG_PRINTLN("Setting device ID: %s", device_id);
|
|
bridge->setDeviceID(device_id);
|
|
|
|
// Set firmware version
|
|
bridge->setFirmwareVersion(getFirmwareVer());
|
|
|
|
// Set board model
|
|
bridge->setBoardModel(_cli.getBoard()->getManufacturerName());
|
|
|
|
// Set build date
|
|
bridge->setBuildDate(getBuildDate());
|
|
|
|
// Set stats sources for automatic stats collection
|
|
bridge->setStatsSources(this, _radio, _cli.getBoard(), _ms);
|
|
|
|
bridge->begin();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Wire fault-alert reporter. begin() is safe regardless of bridge state.
|
|
// Passing `this` as the callbacks lets the reporter resolve a TransportKey
|
|
// scope (alert.region override, falling back to default_scope) so alert
|
|
// floods ride the same scope as adverts/channel messages.
|
|
#ifdef WITH_MQTT_BRIDGE
|
|
_alerter.begin(&_prefs, _cli.getObserverPrefs(), this, this);
|
|
_alerter.setBridge(bridge);
|
|
#endif
|
|
|
|
#if defined(WITH_WEBCONFIG) && !defined(WEBCONFIG_NO_AUTO_AP)
|
|
// First-boot setup portal: raised only when no WiFi has ever been configured,
|
|
// so an OTA onto a deployed (configured) node can never open an AP.
|
|
if (_cli.getObserverPrefs()->wifi_ssid[0] == 0) {
|
|
char wc_reply[160];
|
|
startWebConfig(false, wc_reply);
|
|
Serial.println(wc_reply);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void MyMesh::sendFloodScoped(const TransportKey& scope, mesh::Packet* pkt, uint32_t delay_millis, uint8_t path_hash_size) {
|
|
if (scope.isNull()) {
|
|
sendFlood(pkt, delay_millis, path_hash_size);
|
|
} else {
|
|
uint16_t codes[2];
|
|
codes[0] = scope.calcTransportCode(pkt);
|
|
codes[1] = 0; // REVISIT: set to 'home' Region, for sender/return region?
|
|
sendFlood(pkt, codes, delay_millis, path_hash_size);
|
|
}
|
|
}
|
|
|
|
bool MyMesh::resolveAlertScope(TransportKey& dest) {
|
|
// Same resolution policy as simple_repeater: alert.region > default_scope.
|
|
#ifdef WITH_MQTT_BRIDGE
|
|
const char* alert_region = _cli.getObserverPrefs()->alert_region;
|
|
if (alert_region[0]) {
|
|
auto r = region_map.findByNamePrefix(alert_region);
|
|
if (r && region_map.getTransportKeysFor(*r, &dest, 1) > 0 && !dest.isNull()) {
|
|
return true;
|
|
}
|
|
}
|
|
#endif
|
|
if (!default_scope.isNull()) {
|
|
dest = default_scope;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void MyMesh::sendFloodReply(mesh::Packet* packet, unsigned long delay_millis, uint8_t path_hash_size) {
|
|
TransportKey req_scope;
|
|
bool is_wildcard = recv_pkt_region != NULL && recv_pkt_region->isWildcard();
|
|
bool req_scope_known = recv_pkt_region != NULL && !is_wildcard
|
|
&& region_map.getTransportKeysFor(*recv_pkt_region, &req_scope, 1) > 0;
|
|
|
|
switch (mesh::chooseReplyScope(req_scope_known, is_wildcard, !default_scope.isNull())) {
|
|
case mesh::REPLY_SCOPE_REQUEST:
|
|
sendFloodScoped(req_scope, packet, delay_millis, path_hash_size); // reply with same scope as request
|
|
break;
|
|
case mesh::REPLY_SCOPE_DEFAULT:
|
|
// requester's scope is unknown: DIRECT request (no transport codes), or code matched no Region.
|
|
// un-scoped would be dropped at hop 0 by repeaters running flood.max.unscoped=0
|
|
sendFloodScoped(default_scope, packet, delay_millis, path_hash_size);
|
|
break;
|
|
case mesh::REPLY_SCOPE_NONE:
|
|
sendFlood(packet, delay_millis, path_hash_size); // send un-scoped
|
|
break;
|
|
}
|
|
}
|
|
|
|
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, bool flood) {
|
|
mesh::Packet *pkt = createSelfAdvert();
|
|
if (pkt) {
|
|
if (flood) {
|
|
sendFloodScoped(default_scope, pkt, delay_millis, _prefs.path_hash_mode + 1);
|
|
} else {
|
|
sendZeroHop(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((int)((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(int8_t power_dbm) {
|
|
radio_driver.setTxPower(power_dbm);
|
|
}
|
|
|
|
bool MyMesh::setRxBoostedGain(bool enable) {
|
|
return radio_driver.setRxBoostedGainMode(enable);
|
|
}
|
|
|
|
void MyMesh::saveIdentity(const mesh::LocalIdentity &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", new_id);
|
|
}
|
|
|
|
void MyMesh::startRegionsLoad() {
|
|
temp_map.resetFrom(region_map); // rebuild regions in a temp instance
|
|
memset(load_stack, 0, sizeof(load_stack));
|
|
load_stack[0] = &temp_map.getWildcard();
|
|
region_load_active = true;
|
|
}
|
|
|
|
bool MyMesh::saveRegions() {
|
|
return region_map.save(_fs);
|
|
}
|
|
|
|
void MyMesh::onDefaultRegionChanged(const RegionEntry* r) {
|
|
if (r) {
|
|
region_map.getTransportKeysFor(*r, &default_scope, 1);
|
|
} else {
|
|
memset(default_scope.key, 0, sizeof(default_scope.key));
|
|
}
|
|
}
|
|
|
|
void MyMesh::clearStats() {
|
|
radio_driver.resetStats();
|
|
resetStats();
|
|
((SimpleMeshTables *)getTables())->resetStats();
|
|
}
|
|
|
|
void MyMesh::formatNeighborsReply(char *reply) {
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
char *dp = reply;
|
|
|
|
// create copy of neighbours list, skipping empty entries so we can sort it separately from main list
|
|
int16_t neighbours_count = 0;
|
|
NeighbourInfo* sorted_neighbours[MAX_NEIGHBOURS];
|
|
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
|
|
auto neighbour = &neighbours[i];
|
|
if (neighbour->heard_timestamp > 0) {
|
|
sorted_neighbours[neighbours_count] = neighbour;
|
|
neighbours_count++;
|
|
}
|
|
}
|
|
|
|
// sort neighbours newest to oldest
|
|
std::sort(sorted_neighbours, sorted_neighbours + neighbours_count, [](const NeighbourInfo* a, const NeighbourInfo* b) {
|
|
return a->heard_timestamp > b->heard_timestamp; // desc
|
|
});
|
|
|
|
for (int i = 0; i < neighbours_count && dp - reply < 134; i++) {
|
|
NeighbourInfo *neighbour = sorted_neighbours[i];
|
|
|
|
// 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
|
|
}
|
|
if (dp == reply) { // no neighbours, need empty response
|
|
strcpy(dp, "-none-");
|
|
dp += 6;
|
|
}
|
|
*dp = 0; // null terminator
|
|
#else
|
|
strcpy(reply, "not supported");
|
|
#endif
|
|
}
|
|
|
|
void MyMesh::removeNeighbor(const uint8_t *pubkey, int key_len) {
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
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
|
|
}
|
|
}
|
|
#else
|
|
(void)pubkey; (void)key_len;
|
|
#endif
|
|
}
|
|
|
|
void MyMesh::formatStatsReply(char *reply) {
|
|
StatsFormatHelper::formatCoreStats(reply, board, *_ms, _err_flags, _mgr);
|
|
}
|
|
|
|
void MyMesh::formatRadioStatsReply(char *reply) {
|
|
StatsFormatHelper::formatRadioStats(reply, _radio, radio_driver, getTotalAirTime(), getReceiveAirTime());
|
|
}
|
|
|
|
void MyMesh::formatRadioDiagReply(char *reply) {
|
|
StatsFormatHelper::formatRadioDiag(reply, _radio, radio_driver, *_ms, _err_flags, hasOutbound());
|
|
}
|
|
|
|
void MyMesh::formatPacketStatsReply(char *reply) {
|
|
StatsFormatHelper::formatPacketStats(reply, radio_driver, getNumSentFlood(), getNumSentDirect(),
|
|
getNumRecvFlood(), getNumRecvDirect());
|
|
}
|
|
|
|
#ifdef WITH_WEBCONFIG
|
|
bool MyMesh::startWebConfig(bool force_ap, char* reply) {
|
|
if (_webconfig && (_webconfig->isRunning() || _webconfig->isStopping())) {
|
|
strcpy(reply, _webconfig->isStopping() ? "Err: webconfig still stopping, retry shortly"
|
|
: "Err: webconfig already running");
|
|
return true;
|
|
}
|
|
if (!_webconfig) {
|
|
_webconfig = new WebConfigServer(&_prefs, _cli.getObserverPrefs(), this,
|
|
self_id.pub_key, getFirmwareVer(), getBuildDate(), getRole(),
|
|
_cli.getBoard()->getManufacturerName());
|
|
}
|
|
if (force_ap) {
|
|
// The setup AP owns WiFi outright; refuse while the bridge holds the STA.
|
|
if (bridge && bridge->isRunning()) {
|
|
strcpy(reply, "Err: MQTT bridge is running - 'set bridge off' first");
|
|
return true;
|
|
}
|
|
_webconfig->startSetupMode(reply);
|
|
} else if (_cli.getObserverPrefs()->wifi_ssid[0] == 0) {
|
|
_webconfig->startSetupMode(reply); // unconfigured: same portal as first boot
|
|
} else {
|
|
_webconfig->startLanMode(reply); // reports "WiFi not connected" if down
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool MyMesh::stopWebConfig(char* reply) {
|
|
if (!_webconfig || !_webconfig->isRunning()) {
|
|
strcpy(reply, "Err: webconfig not running");
|
|
return true;
|
|
}
|
|
_webconfig->requestStop();
|
|
strcpy(reply, "OK - webconfig stopping");
|
|
return true;
|
|
}
|
|
|
|
void MyMesh::onConfigBatchEnd() {
|
|
_wc_batch_active = false;
|
|
if (_wc_restart_pending) {
|
|
// A full restart re-applies every slot config; drop the per-slot requests.
|
|
_wc_restart_pending = false;
|
|
_wc_slot_restart_mask = 0;
|
|
restartBridge();
|
|
} else if (_wc_slot_restart_mask) {
|
|
uint8_t mask = _wc_slot_restart_mask;
|
|
_wc_slot_restart_mask = 0;
|
|
for (int i = 0; i < RUNTIME_MQTT_SLOTS; i++) {
|
|
if (mask & (1u << i)) restartBridgeSlot(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Stats snapshot for GET /api/stats. Runs on the loop task (from tick());
|
|
// same sources as the stats CLI replies and `get mqtt.stats`.
|
|
void MyMesh::buildStatsJson(char* buf, size_t buf_size) {
|
|
char ip[20] = "";
|
|
int wifi_rssi = 0;
|
|
if (WiFi.status() == WL_CONNECTED) {
|
|
strncpy(ip, WiFi.localIP().toString().c_str(), sizeof(ip) - 1);
|
|
wifi_rssi = WiFi.RSSI();
|
|
} else if (_webconfig && _webconfig->mode() == WebConfigServer::MODE_SETUP) {
|
|
strncpy(ip, WiFi.softAPIP().toString().c_str(), sizeof(ip) - 1);
|
|
}
|
|
int pos = snprintf(buf, buf_size,
|
|
"{\"uptime_s\":%lu,\"batt_mv\":%u,"
|
|
"\"heap_free\":%lu,\"heap_min\":%lu,\"heap_max_alloc\":%lu,"
|
|
"\"noise\":%d,\"rssi\":%d,\"snr\":%.1f,"
|
|
"\"airtime_s\":%lu,\"rx_airtime_s\":%lu,"
|
|
"\"recv\":%lu,\"sent\":%lu,\"rx_err\":%lu,"
|
|
"\"sent_flood\":%lu,\"sent_direct\":%lu,\"recv_flood\":%lu,\"recv_direct\":%lu,"
|
|
"\"tx_queue\":%d,\"wifi_rssi\":%d,\"ip\":\"%s\",\"mqtt_queue\":%d,\"slots\":[",
|
|
(unsigned long)(uptime_millis / 1000), (unsigned)board.getBattMilliVolts(),
|
|
(unsigned long)ESP.getFreeHeap(), (unsigned long)ESP.getMinFreeHeap(),
|
|
(unsigned long)ESP.getMaxAllocHeap(),
|
|
(int)_radio->getNoiseFloor(), (int)radio_driver.getLastRSSI(),
|
|
radio_driver.getLastSNR(),
|
|
(unsigned long)(getTotalAirTime() / 1000), (unsigned long)(getReceiveAirTime() / 1000),
|
|
(unsigned long)radio_driver.getPacketsRecv(), (unsigned long)radio_driver.getPacketsSent(),
|
|
(unsigned long)radio_driver.getPacketsRecvErrors(),
|
|
(unsigned long)getNumSentFlood(), (unsigned long)getNumSentDirect(),
|
|
(unsigned long)getNumRecvFlood(), (unsigned long)getNumRecvDirect(),
|
|
(int)_mgr->getOutboundCount(0xFFFFFFFF), wifi_rssi, ip,
|
|
bridge ? bridge->getQueueSize() : 0);
|
|
if (pos < 0 || pos >= (int)buf_size - 3) return; // truncated; snprintf terminated it
|
|
bool first = true;
|
|
for (int i = 0; i < RUNTIME_MQTT_SLOTS; i++) {
|
|
MQTTBridge::SlotStatusSnapshot s;
|
|
if (!MQTTBridge::getSlotStatusSnapshot(i, &s)) continue;
|
|
// "filt" is omitted for the all-types default, so the portal only has to
|
|
// render the exception and the JSON stays inside the stats buffer.
|
|
char filt[24];
|
|
filt[0] = '\0';
|
|
if (s.filter_mask != MQTTPacketFilter::kAllPacketTypes) {
|
|
snprintf(filt, sizeof(filt), ",\"filt\":%u", (unsigned)s.filter_mask);
|
|
}
|
|
int n = snprintf(buf + pos, buf_size - pos,
|
|
"%s{\"n\":%d,\"name\":\"%s\",\"state\":\"%s\",\"ok\":%lu,\"err\":%lu%s}",
|
|
first ? "" : ",", i + 1, s.name, s.state, s.publish_ok, s.publish_err,
|
|
filt);
|
|
if (n < 0 || n >= (int)(buf_size - pos)) break;
|
|
pos += n;
|
|
first = false;
|
|
}
|
|
snprintf(buf + pos, buf_size - pos, "]}");
|
|
}
|
|
#endif
|
|
|
|
void MyMesh::handleCommand(uint32_t sender_timestamp, char *command, char *reply) {
|
|
if (region_load_active) {
|
|
if (StrHelper::isBlank(command)) { // empty/blank line, signal to terminate 'load' operation
|
|
region_map = temp_map; // copy over the temp instance as new current map
|
|
region_load_active = false;
|
|
|
|
sprintf(reply, "OK - loaded %d regions", region_map.getCount());
|
|
} else {
|
|
char *np = command;
|
|
while (*np == ' ') np++; // skip indent
|
|
int indent = np - command;
|
|
|
|
char *ep = np;
|
|
while (RegionMap::is_name_char(*ep)) ep++;
|
|
if (*ep) { *ep++ = 0; } // set null terminator for end of name
|
|
|
|
while (*ep && *ep != 'F') ep++; // look for (optional) flags
|
|
|
|
if (indent > 0 && indent < 8 && strlen(np) > 0) {
|
|
auto parent = load_stack[indent - 1];
|
|
if (parent) {
|
|
auto old = region_map.findByName(np);
|
|
auto nw = temp_map.putRegion(np, parent->id, old ? old->id : 0); // carry-over the current ID (if name already exists)
|
|
if (nw) {
|
|
nw->flags = old ? old->flags : (*ep == 'F' ? 0 : REGION_DENY_FLOOD); // carry-over flags from curr
|
|
|
|
load_stack[indent] = nw; // keep pointers to parent regions, to resolve parent_id's
|
|
}
|
|
}
|
|
}
|
|
reply[0] = 0;
|
|
}
|
|
return;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// handle ACL related commands
|
|
if (memcmp(command, "setperm ", 8) == 0) { // format: setperm {pubkey-hex} {permissions-int8}
|
|
char* hex = &command[8];
|
|
char* sp = strchr(hex, ' '); // look for separator char
|
|
if (sp == NULL) {
|
|
strcpy(reply, "Err - bad params");
|
|
} else {
|
|
*sp++ = 0; // replace space with null terminator
|
|
|
|
uint8_t pubkey[PUB_KEY_SIZE];
|
|
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 (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");
|
|
}
|
|
} else {
|
|
strcpy(reply, "Err - bad pubkey");
|
|
}
|
|
}
|
|
} else if (sender_timestamp == 0 && strcmp(command, "get acl") == 0) {
|
|
Serial.println("ACL:");
|
|
for (int i = 0; i < acl.getNumClients(); i++) {
|
|
auto c = acl.getClientByIdx(i);
|
|
if (c->permissions == 0) continue; // skip deleted (or guest) entries
|
|
|
|
Serial.printf("%02X ", c->permissions);
|
|
mesh::Utils::printHex(Serial, c->id.pub_key, PUB_KEY_SIZE);
|
|
Serial.printf("\n");
|
|
}
|
|
reply[0] = 0;
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
} else if (memcmp(command, "discover.neighbors", 18) == 0) {
|
|
const char* sub = command + 18;
|
|
while (*sub == ' ') sub++;
|
|
if (*sub != 0) {
|
|
strcpy(reply, "Err - discover.neighbors has no options");
|
|
} else {
|
|
sendNodeDiscoverReq();
|
|
strcpy(reply, "OK - Discover sent");
|
|
}
|
|
} else if (memcmp(command, "discover.scopes", 15) == 0) {
|
|
const char* sub = command + 15;
|
|
while (*sub == ' ') sub++;
|
|
if (*sub != 0) {
|
|
strcpy(reply, "Err - discover.scopes has no options");
|
|
} else if (pending_discover_tag != 0 &&
|
|
!millisHasNowPassed(pending_discover_until) &&
|
|
!neighbor_discover_active) {
|
|
// A zero-hop table refresh is already collecting; queue the scope pass
|
|
// behind it (as a manual, non-periodic request) rather than starting a
|
|
// second refresh.
|
|
if (!neighborDiscoverReady(reply)) {
|
|
// reply already set by neighborDiscoverReady
|
|
} else {
|
|
neighbor_table_refresh_active = true;
|
|
neighbor_table_refresh_periodic = false;
|
|
long remaining_ms = (long)(pending_discover_until - futureMillis(0));
|
|
unsigned remaining_secs = remaining_ms > 0
|
|
? (unsigned)(((unsigned long)remaining_ms + 999UL) / 1000UL) : 0;
|
|
sprintf(reply, "OK - scopes queued (%us discovery remaining)", remaining_secs);
|
|
MESH_DEBUG_PRINTLN("Neighbor scopes queued behind active discovery (%us remaining)", remaining_secs);
|
|
}
|
|
} else if (!startNeighborDiscover(reply)) {
|
|
// reply already set by startNeighborDiscover
|
|
}
|
|
#elif defined(WITH_MQTT_BRIDGE)
|
|
} else if (memcmp(command, "discover.scopes", 15) == 0) {
|
|
strcpy(reply, "Err - neighbors not enabled in this build");
|
|
#endif
|
|
} else if (strncmp(command, "room.post", 9) == 0) {
|
|
char* msg = command + 9;
|
|
while (*msg == ' ') msg++;
|
|
if (*msg == 0) {
|
|
snprintf(reply, MAX_POST_TEXT_LEN, "ERR empty message");
|
|
} else {
|
|
addSystemPost(msg);
|
|
snprintf(reply, MAX_POST_TEXT_LEN, "OK");
|
|
}
|
|
} else{
|
|
_cli.handleCommand(sender_timestamp, command, reply); // common CLI commands
|
|
}
|
|
}
|
|
|
|
bool MyMesh::saveFilter(ClientInfo* client) {
|
|
return client->isAdmin(); // only save Admins
|
|
}
|
|
|
|
void MyMesh::loop() {
|
|
// Check radio FIRST to ensure we don't miss incoming packets
|
|
// MQTT processing can take time, so we prioritize radio reception
|
|
mesh::Mesh::loop();
|
|
#ifdef WITH_MQTT_BRIDGE
|
|
// bridge.loop() is now handled by FreeRTOS task on Core 0 - no need to call it here
|
|
#endif
|
|
|
|
if (millisHasNowPassed(next_push) && acl.getNumClients() > 0) {
|
|
// check for ACK timeouts
|
|
for (int i = 0; i < acl.getNumClients(); i++) {
|
|
auto c = acl.getClientByIdx(i);
|
|
if (c->extra.room.pending_ack && millisHasNowPassed(c->extra.room.ack_timeout)) {
|
|
c->extra.room.push_failures++;
|
|
c->extra.room.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->extra.room.push_failures);
|
|
}
|
|
}
|
|
// check next Round-Robin client, and sync next new post
|
|
auto client = acl.getClientByIdx(next_client_idx);
|
|
bool did_push = false;
|
|
if (client->extra.room.pending_ack == 0 && client->last_activity != 0 &&
|
|
client->extra.room.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->extra.room.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) % acl.getNumClients(); // round robin polling for each client
|
|
|
|
if (did_push) {
|
|
next_push = futureMillis(SYNC_PUSH_INTERVAL);
|
|
} else {
|
|
// were no unsynced posts for curr client, so process 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();
|
|
uint32_t delay_millis = 0;
|
|
if (pkt) sendFloodScoped(default_scope, pkt, delay_millis, _prefs.path_hash_mode + 1);
|
|
|
|
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_driver.setParams(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_driver.setParams(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
|
|
MESH_DEBUG_PRINTLN("Radio params restored");
|
|
}
|
|
|
|
#ifdef WITH_WEBCONFIG
|
|
if (_webconfig) {
|
|
_webconfig->tick(millis());
|
|
if (!_webconfig->isRunning() && !_webconfig->isStopping()) {
|
|
delete _webconfig; // teardown finished (or start failed): reclaim the heap
|
|
_webconfig = NULL;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(WITH_MQTT_BRIDGE) && defined(OTA_MANIFEST_BASE)
|
|
if (_ota_update_at && millisHasNowPassed(_ota_update_at)) { // deferred `ota update`
|
|
_ota_update_at = 0; // clear timer
|
|
// The "Beginning update..." reply has now been queued. Flush it before OTA
|
|
// blocks the loop until reboot, then free a running bridge for heap headroom.
|
|
// Remember its state: an OTA request must not enable MQTT that an operator
|
|
// had deliberately stopped.
|
|
Serial.println("OTA: starting update");
|
|
const bool bridge_was_running = bridge && bridge->isRunning();
|
|
drainOutbound(OTA_TX_DRAIN_TIMEOUT_MS);
|
|
|
|
bool may_flash = true;
|
|
if (bridge_was_running) {
|
|
setBridgeState(false);
|
|
// OTA must not write after a forced/timed-out MQTT shutdown: its TLS/heap
|
|
// ownership is uncertain until a subsequent clean start/stop cycle.
|
|
may_flash = bridge && bridge->canFlashAfterStop();
|
|
if (!may_flash) {
|
|
Serial.println("OTA: aborted, MQTT stop did not complete cleanly");
|
|
}
|
|
}
|
|
|
|
char ota_reply[160];
|
|
if (may_flash && !_cli.getBoard()->otaFromManifest(getFirmwareVer(), false, ota_reply)) {
|
|
Serial.print("OTA: aborted - "); Serial.println(ota_reply);
|
|
may_flash = false;
|
|
}
|
|
|
|
// Successful otaFromManifest() reboots and never returns. Restore only a
|
|
// bridge that was running before this attempt; leave an intentionally
|
|
// stopped bridge stopped after any OTA refusal or download failure.
|
|
if (!may_flash && bridge_was_running) {
|
|
Serial.println("OTA: resuming bridge");
|
|
setBridgeState(true);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// is pending dirty contacts write needed?
|
|
if (dirty_contacts_expiry && millisHasNowPassed(dirty_contacts_expiry)) {
|
|
acl.save(_fs, MyMesh::saveFilter);
|
|
dirty_contacts_expiry = 0;
|
|
}
|
|
|
|
// TODO: periodically check for OLD/inactive entries in known_clients[], and evict
|
|
|
|
// update uptime
|
|
uint32_t now = millis();
|
|
uptime_millis += now - last_millis;
|
|
last_millis = now;
|
|
|
|
#ifdef WITH_MQTT_BRIDGE
|
|
_alerter.onLoop(now);
|
|
#endif
|
|
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
// Two-stage periodic neighbors publication:
|
|
// stage 1 - zero-hop node-discover refreshes the neighbour table (60s window)
|
|
// stage 2 - anon-regions scope query per neighbour (startNeighborDiscover)
|
|
// then the table JSON is published and the next cycle is rescheduled.
|
|
bool periodic_neighbors_enabled = _cli.getObserverPrefs()->mqtt_neighbors_enabled;
|
|
if (neighbor_discover_active) {
|
|
loopNeighborDiscover();
|
|
} else if (neighbor_table_refresh_active) {
|
|
if (neighbor_table_refresh_periodic && !periodic_neighbors_enabled) {
|
|
// periodic switched off mid-refresh -> cancel (leave pending_discover_tag alone)
|
|
neighbor_table_refresh_active = false;
|
|
neighbor_table_refresh_periodic = false;
|
|
next_neighbors_publish = 0;
|
|
} else if (pending_discover_tag == 0 || millisHasNowPassed(pending_discover_until)) {
|
|
// 60s zero-hop window done -> begin the per-neighbour scope queries
|
|
bool was_periodic = neighbor_table_refresh_periodic;
|
|
pending_discover_tag = 0;
|
|
neighbor_table_refresh_active = false;
|
|
neighbor_table_refresh_periodic = false;
|
|
char tmp_reply[80];
|
|
const char* origin_str = was_periodic ? "periodic" : "manual";
|
|
if (startNeighborDiscover(tmp_reply)) {
|
|
MESH_DEBUG_PRINTLN("MQTT %s %s", origin_str, tmp_reply);
|
|
} else {
|
|
if (periodic_neighbors_enabled) {
|
|
next_neighbors_publish = futureMillis(_cli.getObserverPrefs()->mqtt_neighbors_interval);
|
|
}
|
|
MESH_DEBUG_PRINTLN("MQTT %s neighbor scope discovery failed: %s", origin_str, tmp_reply);
|
|
}
|
|
}
|
|
} else if (periodic_neighbors_enabled && bridge && bridge->isRunning()) {
|
|
if (next_neighbors_publish == 0 ||
|
|
(next_neighbors_publish != 0 && millisHasNowPassed(next_neighbors_publish))) {
|
|
if (pending_discover_tag == 0 || millisHasNowPassed(pending_discover_until)) {
|
|
pending_discover_tag = 0;
|
|
sendNodeDiscoverReq();
|
|
MESH_DEBUG_PRINTLN("MQTT periodic neighbor table refresh started");
|
|
} else {
|
|
MESH_DEBUG_PRINTLN("MQTT periodic refresh joined active neighbor discovery");
|
|
}
|
|
neighbor_table_refresh_active = true;
|
|
neighbor_table_refresh_periodic = true;
|
|
}
|
|
}
|
|
|
|
// Report the schedule state back to the bridge for `get mqtt.status`.
|
|
if (bridge) {
|
|
if (neighbor_discover_active || neighbor_table_refresh_active) {
|
|
bridge->setNeighborsSchedule(MQTTBridge::NBR_ACTIVE, 0);
|
|
} else if (next_neighbors_publish == 0 || millisHasNowPassed(next_neighbors_publish)) {
|
|
bridge->setNeighborsSchedule(MQTTBridge::NBR_DUE, 0);
|
|
} else {
|
|
long remaining_ms = (long)(next_neighbors_publish - futureMillis(0));
|
|
uint32_t remaining_secs = remaining_ms > 0 ? (uint32_t)(remaining_ms / 1000) : 0;
|
|
bridge->setNeighborsSchedule(MQTTBridge::NBR_SCHEDULED, remaining_secs);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef WITH_SNMP
|
|
// Push radio stats to SNMP agent every 2 seconds
|
|
if (_snmp_agent.isRunning()) {
|
|
static unsigned long last_snmp_stats = 0;
|
|
if (now - last_snmp_stats >= 2000) {
|
|
last_snmp_stats = now;
|
|
_snmp_agent.updateRadioStats(
|
|
radio_driver.getPacketsRecv(), radio_driver.getPacketsSent(),
|
|
radio_driver.getPacketsRecvErrors(),
|
|
(int16_t)_radio->getNoiseFloor(),
|
|
(int16_t)radio_driver.getLastRSSI(),
|
|
(int16_t)(radio_driver.getLastSNR() * 4),
|
|
getNumSentFlood(), getNumSentDirect(),
|
|
getNumRecvFlood(), getNumRecvDirect(),
|
|
getTotalAirTime() / 1000, uptime_millis / 1000);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#if defined(WITH_MQTT_NEIGHBORS)
|
|
#include "helpers/MQTTMessageBuilder.h"
|
|
#if defined(ESP_PLATFORM)
|
|
#include <esp_heap_caps.h>
|
|
#endif
|
|
|
|
// This node's own non-flood scope names, same source the anon-regions server
|
|
// reply uses. Empty string when the node has no scoped regions.
|
|
void MyMesh::getLocalScopes(char* buf, size_t len) {
|
|
if (!buf || len == 0) return;
|
|
buf[0] = 0;
|
|
region_map.exportNamesTo(buf, (int)len, REGION_DENY_FLOOD);
|
|
}
|
|
|
|
// Client side of the anon-regions request (the server side is handleAnonRegionsReq).
|
|
// Inner payload: {tag(4)}{ANON_REQ_TYPE_REGIONS}{0x00 = zero-hop reply path}.
|
|
mesh::Packet* MyMesh::sendAnonRegionsReq(const mesh::Identity& target, uint32_t& tag) {
|
|
// RxReservePacketManager keeps a four-packet emergency floor. Preflight one
|
|
// extra free packet so its void queue API cannot silently shed this request.
|
|
if (_mgr->getFreeCount() < NEIGHBOR_DISCOVER_MIN_FREE_PACKETS) return NULL;
|
|
|
|
uint8_t secret[PUB_KEY_SIZE];
|
|
self_id.calcSharedSecret(secret, target);
|
|
|
|
tag = getRTCClock()->getCurrentTimeUnique();
|
|
uint8_t inner[6];
|
|
memcpy(inner, &tag, 4);
|
|
inner[4] = ANON_REQ_TYPE_REGIONS;
|
|
inner[5] = 0x00; // request a zero-hop reply path
|
|
|
|
mesh::Packet* pkt = createAnonDatagram(PAYLOAD_TYPE_ANON_REQ, self_id, target, secret, inner, sizeof(inner));
|
|
if (!pkt) return NULL;
|
|
sendDirect(pkt, NULL, 0, 0);
|
|
return pkt;
|
|
}
|
|
|
|
bool MyMesh::cancelNeighborDiscoverRequest() {
|
|
if (!neighbor_discover_request) return false;
|
|
for (int i = _mgr->getOutboundTotal() - 1; i >= 0; i--) {
|
|
if (_mgr->getOutboundByIdx(i) == neighbor_discover_request) {
|
|
mesh::Packet* pkt = _mgr->removeOutboundByIdx(i);
|
|
if (pkt) releasePacket(pkt);
|
|
neighbor_discover_request = NULL;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// This timer starts after the request finishes transmitting. Allow the server
|
|
// delay, the responder's full CAD deferral window plus one maximum retry
|
|
// overshoot, and airtime for one priority-0 packet ahead of the response plus
|
|
// the response itself. The radio estimate scales with SF, bandwidth, coding
|
|
// rate, and preamble.
|
|
uint32_t MyMesh::neighborDiscoverQueryTimeoutMs() const {
|
|
uint32_t response_airtime = _radio->getEstAirtimeFor(MAX_PACKET_PAYLOAD + 2);
|
|
return SERVER_RESPONSE_DELAY + getCADFailMaxDuration() + 360UL
|
|
+ response_airtime * 2UL;
|
|
}
|
|
|
|
void MyMesh::resetNeighborDiscoverJsonBudget() {
|
|
getLocalScopes(self_scopes_buf, sizeof(self_scopes_buf));
|
|
{
|
|
// No default region means this node floods unscoped, i.e. the wildcard.
|
|
RegionEntry* def = region_map.getDefaultRegion();
|
|
const char* def_name = (def && def->name[0]) ? def->name : "*";
|
|
if (*def_name == '#') def_name++; // match how self.scopes renders names
|
|
strncpy(self_default_scope_buf, def_name, sizeof(self_default_scope_buf) - 1);
|
|
self_default_scope_buf[sizeof(self_default_scope_buf) - 1] = 0;
|
|
}
|
|
MQTTBridge::getEffectiveMqttOrigin(
|
|
&_prefs, _cli.getObserverPrefs(),
|
|
neighbor_discover_origin, sizeof(neighbor_discover_origin));
|
|
|
|
char self_pubkey_hex[65];
|
|
mesh::Utils::toHex(self_pubkey_hex, self_id.pub_key, PUB_KEY_SIZE);
|
|
char timestamp[40];
|
|
MQTTMessageBuilder::formatIsoTimestampForMqtt(
|
|
getRTCClock()->getCurrentTime(), 0, nullptr, timestamp, sizeof(timestamp));
|
|
|
|
neighbor_discover_publish_count = 0;
|
|
neighbor_discover_queried_count = 0;
|
|
neighbor_discover_truncated = false;
|
|
neighbor_discover_json_size = MQTTMessageBuilder::measureNeighborsMessageBase(
|
|
neighbor_discover_origin, self_pubkey_hex, timestamp, self_scopes_buf,
|
|
self_default_scope_buf, neighbor_discover_count);
|
|
}
|
|
|
|
// Account for one terminal result. The base measurement reserves maximum-width
|
|
// progress metadata; UINT32_MAX likewise reserves the widest heard-age value.
|
|
// If this result cannot fit, stop before transmitting another scope request.
|
|
bool MyMesh::completeNeighborDiscoverEntry() {
|
|
NeighborDiscoverEntry& entry = neighbor_discover[neighbor_discover_next];
|
|
char pubkey_hex[65];
|
|
mesh::Utils::toHex(pubkey_hex, entry.id.pub_key, PUB_KEY_SIZE);
|
|
|
|
MQTTMessageBuilder::NeighborsMessageEntry measured = {
|
|
pubkey_hex,
|
|
entry.snr / 4.0f,
|
|
UINT32_MAX,
|
|
entry.scopes,
|
|
entry.status == ND_RESPONDED ? "responded"
|
|
: (entry.status == ND_SEND_FAILED ? "send_failed" : "timeout")
|
|
};
|
|
size_t added = MQTTMessageBuilder::measureNeighborsMessageEntry(measured);
|
|
if (neighbor_discover_publish_count > 0) added++; // array comma
|
|
|
|
if (neighbor_discover_json_size + added >= MQTTBridge::NEIGHBORS_JSON_BUFFER_SIZE ||
|
|
neighbor_discover_publish_count >= MQTTBridge::NEIGHBORS_MAX_PUBLISH_ENTRIES) {
|
|
neighbor_discover_truncated = true;
|
|
finishNeighborDiscover();
|
|
return false;
|
|
}
|
|
|
|
neighbor_discover_json_size += added;
|
|
neighbor_discover_publish_count++;
|
|
neighbor_discover_next++;
|
|
return true;
|
|
}
|
|
|
|
// Match a RESPONSE against the pending overlay entry by tag; copy its scope
|
|
// string (payload after the 8-byte {tag}{clock} header) into the entry.
|
|
bool MyMesh::handleNeighborDiscoverResponse(int overlay_idx, const uint8_t* data, size_t len) {
|
|
if (overlay_idx < 0 || overlay_idx >= neighbor_discover_count) return false;
|
|
NeighborDiscoverEntry& entry = neighbor_discover[overlay_idx];
|
|
if (entry.status != ND_PENDING || len < 8) return false;
|
|
|
|
uint32_t tag;
|
|
memcpy(&tag, data, 4);
|
|
if (tag != entry.tag) return false;
|
|
|
|
size_t scope_len = len - 8;
|
|
if (scope_len >= sizeof(entry.scopes)) {
|
|
scope_len = sizeof(entry.scopes) - 1;
|
|
}
|
|
memcpy(entry.scopes, &data[8], scope_len);
|
|
entry.scopes[scope_len] = 0;
|
|
entry.status = ND_RESPONDED;
|
|
// A zero-hop reply is proof we heard this neighbour now, so re-stamp both the
|
|
// snapshot and the live table; a stamp taken before time sync heals here.
|
|
entry.heard_timestamp = getRTCClock()->getCurrentTime();
|
|
touchNeighbourHeard(entry.id, entry.heard_timestamp);
|
|
return true;
|
|
}
|
|
|
|
// Refresh a live neighbour's heard time only: a scope reply carries no advert
|
|
// timestamp or SNR to update.
|
|
void MyMesh::touchNeighbourHeard(const mesh::Identity& id, uint32_t heard_timestamp) {
|
|
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
|
|
if (id.matches(neighbours[i].id)) {
|
|
neighbours[i].heard_timestamp = heard_timestamp;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// A heard age is a wall-clock delta, so it only means something when both stamps
|
|
// share a clock epoch. An entry heard before the clock was set holds the unset
|
|
// default, which a synced clock turns into a ~2-year age; report those as
|
|
// unknown instead. See UPSTREAM_BUGS.md for the monotonic fix.
|
|
static bool neighborHeardAgeUsable(uint32_t heard_timestamp, uint32_t now_secs) {
|
|
if (heard_timestamp == 0 || now_secs < heard_timestamp) return false;
|
|
// Never synced: the stamp shares this clock's boot epoch, so the delta holds.
|
|
if (now_secs < MQTTConnectionPolicy::kSyncedClockEpoch) return true;
|
|
return heard_timestamp >= MQTTConnectionPolicy::kSyncedClockEpoch;
|
|
}
|
|
|
|
// Publish-ordering: usable ages first, then most recently heard, then stronger
|
|
// SNR, then pubkey. The JSON builder drops the tail if the buffer fills, so the
|
|
// head must be the most useful entries.
|
|
static bool neighborPublishEntryComesBefore(
|
|
const MQTTMessageBuilder::NeighborsMessageEntry& lhs,
|
|
const MQTTMessageBuilder::NeighborsMessageEntry& rhs) {
|
|
if (lhs.heard_unknown != rhs.heard_unknown) {
|
|
return !lhs.heard_unknown;
|
|
}
|
|
if (lhs.heard_secs_ago != rhs.heard_secs_ago) {
|
|
return lhs.heard_secs_ago < rhs.heard_secs_ago; // newer first
|
|
}
|
|
if (lhs.snr != rhs.snr) {
|
|
return lhs.snr > rhs.snr; // stronger first when equally recent
|
|
}
|
|
return strcmp(lhs.pubkey_hex, rhs.pubkey_hex) < 0;
|
|
}
|
|
|
|
#if defined(ESP_PLATFORM)
|
|
// Neighbors allocations prefer PSRAM where it exists and otherwise come from
|
|
// internal DRAM, so MQTT_NEIGHBORS_WITHOUT_PSRAM boards can build the table too.
|
|
#if defined(BOARD_HAS_PSRAM)
|
|
static const uint32_t kNeighborsAllocCaps = MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT;
|
|
#else
|
|
static const uint32_t kNeighborsAllocCaps = MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT;
|
|
#endif
|
|
|
|
static void* neighborsAlloc(size_t size) {
|
|
if (size == 0) return nullptr;
|
|
void* p = heap_caps_malloc(size, kNeighborsAllocCaps);
|
|
#if defined(BOARD_HAS_PSRAM)
|
|
if (!p) p = heap_caps_malloc(size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
|
|
#endif
|
|
return p;
|
|
}
|
|
|
|
static void neighborsFree(void* ptr) {
|
|
if (ptr) heap_caps_free(ptr);
|
|
}
|
|
|
|
// ArduinoJson v7 JsonDocument has no real capacity cap (DynamicJsonDocument(N)
|
|
// is a no-op shim), so soft-cap peak pool growth to NEIGHBORS_DOC_POOL_BUDGET.
|
|
// used only rises on allocate — conservative for this single-shot doc (overflow
|
|
// path removes+breaks, so no further growth after free).
|
|
struct NeighborsDocAllocator : ArduinoJson::Allocator {
|
|
size_t used = 0;
|
|
static const size_t kBudget = MQTTBridge::NEIGHBORS_DOC_POOL_BUDGET;
|
|
|
|
void* allocate(size_t size) override {
|
|
if (used >= kBudget || size > kBudget - used) return nullptr;
|
|
void* p = neighborsAlloc(size);
|
|
if (p) used += size;
|
|
return p;
|
|
}
|
|
|
|
void deallocate(void* ptr) override {
|
|
neighborsFree(ptr);
|
|
}
|
|
|
|
void* reallocate(void* ptr, size_t new_size) override {
|
|
size_t old_size = ptr ? heap_caps_get_allocated_size(ptr) : 0;
|
|
size_t next_used = (used >= old_size) ? (used - old_size) : 0;
|
|
if (next_used >= kBudget || new_size > kBudget - next_used) return nullptr;
|
|
void* p = heap_caps_realloc(ptr, new_size, kNeighborsAllocCaps);
|
|
#if defined(BOARD_HAS_PSRAM)
|
|
if (!p) p = heap_caps_realloc(ptr, new_size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
|
|
#endif
|
|
if (p) used = next_used + new_size;
|
|
return p;
|
|
}
|
|
};
|
|
#else
|
|
static void* neighborsAlloc(size_t size) { return size ? malloc(size) : nullptr; }
|
|
static void neighborsFree(void* ptr) { free(ptr); }
|
|
#endif
|
|
|
|
// Build the neighbors-table JSON and hand it to the bridge, then reschedule.
|
|
void MyMesh::finishNeighborDiscover() {
|
|
char self_pubkey_hex[65];
|
|
mesh::Utils::toHex(self_pubkey_hex, self_id.pub_key, PUB_KEY_SIZE);
|
|
|
|
char timestamp[40];
|
|
MQTTMessageBuilder::formatIsoTimestampForMqtt(getRTCClock()->getCurrentTime(), 0, nullptr, timestamp, sizeof(timestamp));
|
|
|
|
// The entry table plus one hex string each reaches ~4.5 KB at MAX_NEIGHBOURS,
|
|
// which does not fit the mesh loop task's 8 KB stack, so both share a single
|
|
// heap block sized to this pass. Publishing is skipped if either alloc fails.
|
|
const int publish_count = neighbor_discover_publish_count;
|
|
const size_t hex_size = PUB_KEY_SIZE * 2 + 1;
|
|
const size_t entries_bytes =
|
|
sizeof(MQTTMessageBuilder::NeighborsMessageEntry) * publish_count;
|
|
void* scratch = neighborsAlloc(entries_bytes + hex_size * publish_count);
|
|
char* json_buf = (char*)neighborsAlloc(MQTTBridge::NEIGHBORS_JSON_BUFFER_SIZE);
|
|
|
|
if (json_buf && (scratch || publish_count == 0)) {
|
|
auto* entries = (MQTTMessageBuilder::NeighborsMessageEntry*)scratch;
|
|
char* pubkey_hex = (char*)scratch + entries_bytes;
|
|
uint32_t now_secs = getRTCClock()->getCurrentTime();
|
|
|
|
for (int i = 0; i < publish_count; i++) {
|
|
auto& entry = neighbor_discover[i];
|
|
char* hex = &pubkey_hex[i * hex_size];
|
|
mesh::Utils::toHex(hex, entry.id.pub_key, PUB_KEY_SIZE);
|
|
entries[i].pubkey_hex = hex;
|
|
entries[i].snr = entry.snr / 4.0f;
|
|
bool heard_known = neighborHeardAgeUsable(entry.heard_timestamp, now_secs);
|
|
entries[i].heard_unknown = !heard_known;
|
|
entries[i].heard_secs_ago = heard_known ? (now_secs - entry.heard_timestamp) : 0;
|
|
entries[i].scopes = entry.scopes;
|
|
switch (entry.status) {
|
|
case ND_RESPONDED: entries[i].status = "responded"; break;
|
|
case ND_SEND_FAILED: entries[i].status = "send_failed"; break;
|
|
default: entries[i].status = "timeout"; break;
|
|
}
|
|
}
|
|
|
|
// insertion sort: most useful first (JSON builder drops the tail on overflow)
|
|
for (int i = 1; i < publish_count; i++) {
|
|
MQTTMessageBuilder::NeighborsMessageEntry entry = entries[i];
|
|
int j = i;
|
|
while (j > 0 && neighborPublishEntryComesBefore(entry, entries[j - 1])) {
|
|
entries[j] = entries[j - 1];
|
|
j--;
|
|
}
|
|
entries[j] = entry;
|
|
}
|
|
|
|
#if defined(ESP_PLATFORM)
|
|
NeighborsDocAllocator doc_alloc;
|
|
JsonDocument doc(&doc_alloc);
|
|
#else
|
|
JsonDocument doc;
|
|
#endif
|
|
int json_len = MQTTMessageBuilder::buildNeighborsMessage(
|
|
doc, neighbor_discover_origin, self_pubkey_hex, timestamp, self_scopes_buf,
|
|
self_default_scope_buf, entries, publish_count,
|
|
json_buf, MQTTBridge::NEIGHBORS_JSON_BUFFER_SIZE,
|
|
neighbor_discover_count, neighbor_discover_queried_count,
|
|
neighbor_discover_truncated);
|
|
|
|
if (json_len > 0 && bridge) {
|
|
bridge->requestPublishNeighbors(json_buf, (size_t)json_len);
|
|
}
|
|
}
|
|
|
|
neighborsFree(scratch);
|
|
neighborsFree(json_buf);
|
|
|
|
neighbor_discover_active = false;
|
|
neighbor_discover_count = 0;
|
|
neighbor_discover_next = 0;
|
|
neighbor_discover_publish_count = 0;
|
|
neighbor_discover_queried_count = 0;
|
|
neighbor_discover_json_size = 0;
|
|
neighbor_discover_truncated = false;
|
|
neighbor_discover_until = 0;
|
|
neighbor_discover_request = NULL;
|
|
if (_cli.getObserverPrefs()->mqtt_neighbors_enabled) {
|
|
next_neighbors_publish = futureMillis(_cli.getObserverPrefs()->mqtt_neighbors_interval);
|
|
}
|
|
}
|
|
|
|
// Advance the newest-first scope-query phase. Keep only one request in flight so
|
|
// its responder gets a clear reply opportunity and the packet pool stays free.
|
|
void MyMesh::loopNeighborDiscover() {
|
|
if (!neighbor_discover_active) return;
|
|
|
|
if (neighbor_discover_next >= neighbor_discover_count) {
|
|
finishNeighborDiscover();
|
|
return;
|
|
}
|
|
|
|
NeighborDiscoverEntry& entry = neighbor_discover[neighbor_discover_next];
|
|
if (entry.status == ND_QUEUED) {
|
|
if (!millisHasNowPassed(neighbor_discover_until)) return;
|
|
if (cancelNeighborDiscoverRequest()) {
|
|
entry.status = ND_SEND_FAILED;
|
|
completeNeighborDiscoverEntry();
|
|
return;
|
|
}
|
|
if (isCurrentOutbound(neighbor_discover_request)) {
|
|
neighbor_discover_until = futureMillis(neighborDiscoverQueryTimeoutMs());
|
|
return;
|
|
}
|
|
neighbor_discover_request = NULL; // packet manager already shed it
|
|
entry.status = ND_SEND_FAILED;
|
|
completeNeighborDiscoverEntry();
|
|
return;
|
|
}
|
|
if (entry.status == ND_PENDING) {
|
|
if (!millisHasNowPassed(neighbor_discover_until)) return;
|
|
entry.status = ND_TIMEOUT;
|
|
completeNeighborDiscoverEntry();
|
|
return;
|
|
}
|
|
if (entry.status == ND_RESPONDED || entry.status == ND_SEND_FAILED
|
|
|| entry.status == ND_TIMEOUT) {
|
|
completeNeighborDiscoverEntry();
|
|
return;
|
|
}
|
|
if (entry.status != ND_UNSENT) {
|
|
neighbor_discover_next++;
|
|
return;
|
|
}
|
|
|
|
uint32_t tag;
|
|
mesh::Packet* request = sendAnonRegionsReq(entry.id, tag);
|
|
if (request) {
|
|
entry.tag = tag;
|
|
entry.status = ND_QUEUED;
|
|
neighbor_discover_request = request;
|
|
neighbor_discover_until = futureMillis(NEIGHBOR_DISCOVER_QUEUE_TIMEOUT_MS);
|
|
} else {
|
|
entry.status = ND_SEND_FAILED;
|
|
completeNeighborDiscoverEntry();
|
|
}
|
|
}
|
|
|
|
// Shared precondition for starting a discovery: usable buffers + bridge running.
|
|
// PSRAM builds size their neighbors buffers for PSRAM, so a board whose PSRAM
|
|
// failed to init must not silently spend that much internal DRAM here.
|
|
// MQTT_NEIGHBORS_WITHOUT_PSRAM builds are already sized for internal DRAM.
|
|
bool MyMesh::neighborDiscoverReady(char* reply) {
|
|
#if defined(ESP_PLATFORM) && defined(BOARD_HAS_PSRAM)
|
|
if (!psramFound()) { strcpy(reply, "Err - PSRAM not available"); return false; }
|
|
#endif
|
|
if (!bridge || !bridge->isRunning()) { strcpy(reply, "Err - MQTT bridge not running"); return false; }
|
|
return true;
|
|
}
|
|
|
|
// Snapshot the neighbor table newest-first. loopNeighborDiscover() emits one
|
|
// anon-regions query at a time so hidden responders do not reply as a burst.
|
|
bool MyMesh::startNeighborDiscover(char* reply) {
|
|
if (neighbor_discover_active) {
|
|
strcpy(reply, "Err - neighbor discover already active");
|
|
return false;
|
|
}
|
|
if (!neighborDiscoverReady(reply)) {
|
|
return false; // reply already set
|
|
}
|
|
|
|
neighbor_discover_count = 0;
|
|
for (int i = 0; i < MAX_NEIGHBOURS; i++) {
|
|
if (neighbours[i].heard_timestamp > 0) {
|
|
NeighborDiscoverEntry& entry = neighbor_discover[neighbor_discover_count];
|
|
entry.id = neighbours[i].id;
|
|
entry.heard_timestamp = neighbours[i].heard_timestamp;
|
|
entry.snr = neighbours[i].snr;
|
|
entry.scopes[0] = 0;
|
|
entry.tag = 0;
|
|
entry.status = ND_UNSENT;
|
|
neighbor_discover_count++;
|
|
}
|
|
}
|
|
|
|
// Query the freshest/strongest entries first; pubkey makes ties deterministic.
|
|
for (int i = 1; i < neighbor_discover_count; i++) {
|
|
NeighborDiscoverEntry entry = neighbor_discover[i];
|
|
int j = i;
|
|
while (j > 0) {
|
|
auto& rhs = neighbor_discover[j - 1];
|
|
bool before = entry.heard_timestamp > rhs.heard_timestamp
|
|
|| (entry.heard_timestamp == rhs.heard_timestamp && entry.snr > rhs.snr)
|
|
|| (entry.heard_timestamp == rhs.heard_timestamp && entry.snr == rhs.snr
|
|
&& memcmp(entry.id.pub_key, rhs.id.pub_key, PUB_KEY_SIZE) < 0);
|
|
if (!before) break;
|
|
neighbor_discover[j] = neighbor_discover[j - 1];
|
|
j--;
|
|
}
|
|
neighbor_discover[j] = entry;
|
|
}
|
|
|
|
neighbor_discover_next = 0;
|
|
resetNeighborDiscoverJsonBudget();
|
|
neighbor_discover_active = true;
|
|
neighbor_discover_until = 0;
|
|
neighbor_discover_request = NULL;
|
|
|
|
if (neighbor_discover_count == 0) {
|
|
finishNeighborDiscover();
|
|
strcpy(reply, "OK - neighbor discover started (0 neighbors, self only)");
|
|
} else {
|
|
loopNeighborDiscover(); // queue the first request now
|
|
sprintf(reply, "OK - neighbor discover started (%u neighbors)", (unsigned)neighbor_discover_count);
|
|
}
|
|
return true;
|
|
}
|
|
#endif // WITH_MQTT_NEIGHBORS
|