mirror of https://github.com/meshcore-dev/MeshCore
Scott Powell
1 year ago
3 changed files with 646 additions and 1 deletions
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#include <Arduino.h> // needed for PlatformIO |
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#include <Mesh.h> |
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#if defined(NRF52_PLATFORM) |
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#include <InternalFileSystem.h> |
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#elif defined(ESP32) |
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#include <SPIFFS.h> |
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#endif |
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#define RADIOLIB_STATIC_ONLY 1 |
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#include <RadioLib.h> |
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#include <helpers/ArduinoHelpers.h> |
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#include <helpers/StaticPoolPacketManager.h> |
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#include <helpers/SimpleMeshTables.h> |
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#include <helpers/IdentityStore.h> |
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#include <RTClib.h> |
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/* ------------------------------ Config -------------------------------- */ |
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#ifndef LORA_FREQ |
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#define LORA_FREQ 915.0 |
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#endif |
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#ifndef LORA_BW |
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#define LORA_BW 250 |
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#endif |
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#ifndef LORA_SF |
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#define LORA_SF 10 |
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#endif |
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#ifndef LORA_CR |
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#define LORA_CR 5 |
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#endif |
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#ifndef LORA_TX_POWER |
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#define LORA_TX_POWER 20 |
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#endif |
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#ifndef ADVERT_NAME |
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#define ADVERT_NAME "Test BBS" |
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#endif |
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#ifndef ADVERT_LAT |
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#define ADVERT_LAT 0.0 |
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#endif |
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#ifndef ADVERT_LON |
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#define ADVERT_LON 0.0 |
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#endif |
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#ifndef ADMIN_PASSWORD |
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#define ADMIN_PASSWORD "password" |
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#endif |
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#if defined(HELTEC_LORA_V3) |
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#include <helpers/HeltecV3Board.h> |
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#include <helpers/CustomSX1262Wrapper.h> |
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static HeltecV3Board board; |
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#elif defined(ARDUINO_XIAO_ESP32C3) |
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#include <helpers/XiaoC3Board.h> |
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#include <helpers/CustomSX1262Wrapper.h> |
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#include <helpers/CustomSX1268Wrapper.h> |
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static XiaoC3Board board; |
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#elif defined(SEEED_XIAO_S3) |
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#include <helpers/ESP32Board.h> |
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#include <helpers/CustomSX1262Wrapper.h> |
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static ESP32Board board; |
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#elif defined(RAK_4631) |
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#include <helpers/RAK4631Board.h> |
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#include <helpers/CustomSX1262Wrapper.h> |
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static RAK4631Board board; |
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#else |
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#error "need to provide a 'board' object" |
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#endif |
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/* ------------------------------ Code -------------------------------- */ |
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struct ClientInfo { |
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mesh::Identity id; |
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uint32_t last_timestamp; // by THEIR clock
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uint32_t last_activity; // by OUR clock
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uint32_t sync_since; // sync messages SINCE this timestamp (by OUR clock)
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uint32_t pending_ack; |
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uint32_t push_post_timestamp; |
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bool is_admin; |
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uint8_t secret[PUB_KEY_SIZE]; |
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int out_path_len; |
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uint8_t out_path[MAX_PATH_SIZE]; |
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}; |
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#define MAX_POST_TEXT_LEN (160-9) |
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struct PostInfo { |
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mesh::Identity author; |
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uint32_t post_timestamp; // by OUR clock
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char text[MAX_POST_TEXT_LEN+1]; |
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}; |
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#define MAX_CLIENTS 32 |
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#define MAX_UNSYNCED_POSTS 16 |
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#define REPLY_DELAY_MILLIS 1500 |
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#define PUSH_NOTIFY_DELAY_MILLIS 1000 |
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#define SYNC_PUSH_INTERVAL 1000 |
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class MyMesh : public mesh::Mesh { |
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RadioLibWrapper* my_radio; |
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float airtime_factor; |
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uint8_t reply_data[MAX_PACKET_PAYLOAD]; |
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int num_clients; |
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ClientInfo known_clients[MAX_CLIENTS]; |
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unsigned long next_push; |
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int next_client_idx; // for round-robin polling
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int next_post_idx; |
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PostInfo posts[MAX_UNSYNCED_POSTS]; // cyclic queue
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ClientInfo* putClient(const mesh::Identity& id) { |
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for (int i = 0; i < num_clients; i++) { |
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if (id.matches(known_clients[i].id)) return &known_clients[i]; // already known
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} |
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ClientInfo* newClient; |
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if (num_clients < MAX_CLIENTS) { |
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auto newClient = &known_clients[num_clients++]; |
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} else { // table is currently full
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// evict least active client
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uint32_t oldest_timestamp = 0xFFFFFFFF; |
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newClient = &known_clients[0]; |
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for (int i = 0; i < num_clients; i++) { |
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auto c = &known_clients[i]; |
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if (c->last_activity < oldest_timestamp) { |
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oldest_timestamp = c->last_activity; |
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newClient = c; |
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} |
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} |
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} |
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newClient->id = id; |
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newClient->out_path_len = -1; // initially out_path is unknown
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newClient->last_timestamp = 0; |
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self_id.calcSharedSecret(newClient->secret, id); // calc ECDH shared secret
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return newClient; |
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} |
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void addPost(ClientInfo* client, const char* postData, char reply[]) { |
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// TODO: suggested postData format: <title>/<descrption>
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posts[next_post_idx].author = client->id; // add to cyclic queue
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strncpy(posts[next_post_idx].text, postData, MAX_POST_TEXT_LEN); |
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posts[next_post_idx].text[MAX_POST_TEXT_LEN] = 0; |
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posts[next_post_idx].post_timestamp = getRTCClock()->getCurrentTime(); |
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// TODO: only post at maximum of ONE PER SECOND, so that post_timestamps are UNIQUE!!
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next_post_idx = (next_post_idx + 1) % MAX_UNSYNCED_POSTS; |
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strcpy(reply, "[Posted]"); |
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next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS); |
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} |
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void handleCommand(ClientInfo* client, const char* command, char reply[]) { |
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if (*command == '+') { |
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addPost(client, &command[1], reply); |
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} else { |
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strcpy(reply, "?"); // unknown command
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} |
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} |
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void pushPostToClient(ClientInfo* client, PostInfo& post) { |
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int len = 0; |
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memcpy(&reply_data[len], &post.post_timestamp, 4); len += 4; // this is a PAST timestamp... but should be accepted by client
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reply_data[len++] = 0; // plain text
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// encode prefix of post.author.pub_key (in hex)
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mesh::Utils::toHex((char *) &reply_data[len], post.author.pub_key, 4); len += 8; // just first 4 bytes (8 hex chars)
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reply_data[len++] = ':'; |
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int text_len = strlen(post.text); |
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memcpy(&reply_data[len], post.text, text_len); len += text_len; |
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// calc expected ACK reply
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mesh::Utils::sha256((uint8_t *)&client->pending_ack, 4, reply_data, len, self_id.pub_key, PUB_KEY_SIZE); |
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client->push_post_timestamp = post.post_timestamp; |
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auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, client->secret, reply_data, len); |
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if (reply) { |
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if (client->out_path_len < 0) { |
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sendFlood(reply); |
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} else { |
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sendDirect(reply, client->out_path, client->out_path_len); |
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} |
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} else { |
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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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bool processAck(const uint8_t *data) { |
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for (int i = 0; i < num_clients; i++) { |
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auto client = &known_clients[i]; |
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if (client->pending_ack && memcmp(data, &client->pending_ack, 4) == 0) { // got an ACK from Client!
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client->pending_ack = 0; // clear this, so next push can happen
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client->sync_since = client->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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protected: |
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float getAirtimeBudgetFactor() const override { |
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return airtime_factor; |
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} |
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#if ROOM_IS_ALSO_REPEATER |
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bool allowPacketForward(const mesh::Packet* packet) override { |
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return true; // Yes, allow packet to be forwarded
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} |
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#endif |
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void onAnonDataRecv(mesh::Packet* packet, uint8_t type, const mesh::Identity& sender, uint8_t* data, size_t len) override { |
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if (type == PAYLOAD_TYPE_ANON_REQ) { // received an initial request by a possible admin 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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bool is_admin; |
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if (memcmp(&data[8], ADMIN_PASSWORD, strlen(ADMIN_PASSWORD)) == 0) { // check for valid admin password
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is_admin = true; |
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} else { |
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is_admin = false; |
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#ifdef ROOM_PASSWORD |
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if (memcmp(&data[8], ROOM_PASSWORD, strlen(ROOM_PASSWORD)) != 0) { // check the room/public password
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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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#endif |
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} |
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auto client = putClient(sender); // add to known clients (if not already known)
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if (sender_timestamp <= client->last_timestamp) { |
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MESH_DEBUG_PRINTLN("possible replay attack!"); |
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return; |
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} |
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MESH_DEBUG_PRINTLN("Login success!"); |
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client->is_admin = is_admin; |
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client->last_timestamp = sender_timestamp; |
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client->sync_since = sender_sync_since; |
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client->pending_ack = 0; |
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uint32_t now = getRTCClock()->getCurrentTime(); |
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client->last_activity = now; |
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memcpy(reply_data, &now, 4); // response packets always prefixed with timestamp
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// TODO: maybe reply with count of messages waiting to be synced for THIS client?
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memset(&reply_data[4], 0, 4); // FUTURE: reserve 4 bytes
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memcpy(&reply_data[8], "OK", 2); |
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if (packet->isRouteFlood()) { |
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// let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
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mesh::Packet* path = createPathReturn(sender, client->secret, packet->path, packet->path_len, |
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PAYLOAD_TYPE_RESPONSE, reply_data, 8 + 2); |
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if (path) sendFlood(path); |
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} else { |
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mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 8 + 2); |
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if (reply) { |
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if (client->out_path_len >= 0) { // we have an out_path, so send DIRECT
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sendDirect(reply, client->out_path, client->out_path_len); |
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} else { |
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sendFlood(reply); |
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} |
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} |
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} |
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} |
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} |
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int matching_peer_indexes[MAX_CLIENTS]; |
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int searchPeersByHash(const uint8_t* hash) override { |
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int n = 0; |
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for (int i = 0; i < num_clients; i++) { |
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if (known_clients[i].id.isHashMatch(hash)) { |
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matching_peer_indexes[n++] = i; // store the INDEXES of matching contacts (for subsequent 'peer' methods)
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} |
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} |
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return n; |
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} |
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void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override { |
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int i = matching_peer_indexes[peer_idx]; |
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if (i >= 0 && i < num_clients) { |
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// lookup pre-calculated shared_secret
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memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE); |
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} else { |
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MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i); |
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} |
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} |
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void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override { |
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int i = matching_peer_indexes[sender_idx]; |
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if (i < 0 || i >= num_clients) { // get from our known_clients table (sender SHOULD already be known in this context)
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MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i); |
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return; |
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} |
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auto client = &known_clients[i]; |
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if (type == PAYLOAD_TYPE_TXT_MSG && len > 5) { // a CLI command
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uint32_t sender_timestamp; |
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memcpy(&sender_timestamp, data, 4); // timestamp (by sender's RTC clock - which could be wrong)
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uint flags = data[4]; // message attempt number, and other flags
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if (flags != 0) { |
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MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported command type received: flags=%02x", (uint32_t)flags); |
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} else if (sender_timestamp > client->last_timestamp) { // prevent replay attacks
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client->last_timestamp = sender_timestamp; |
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uint32_t now = getRTCClock()->getCurrentTime(); |
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client->last_activity = now; |
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// len can be > original length, but 'text' will be padded with zeroes
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data[len] = 0; // need to make a C string again, with null terminator
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uint32_t ack_hash; // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
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mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key, PUB_KEY_SIZE); |
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mesh::Packet* ack = createAck(ack_hash); |
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if (ack) { |
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if (client->out_path_len < 0) { |
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sendFlood(ack); |
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} else { |
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sendDirect(ack, client->out_path, client->out_path_len); |
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} |
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} |
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uint8_t temp[166]; |
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if (client->is_admin) { |
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if (!handleAdminCommand(sender_timestamp, (const char *) &data[5], (char *) &temp[5])) { |
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handleCommand(client, (const char *) &data[5], (char *) &temp[5]); |
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} |
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} else { |
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handleCommand(client, (const char *) &data[5], (char *) &temp[5]); |
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} |
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int text_len = strlen((char *) &temp[5]); |
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if (text_len > 0) { |
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if (now == sender_timestamp) { |
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// WORKAROUND: the two timestamps need to be different, in the CLI view
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now++; |
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} |
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memcpy(temp, &now, 4); // mostly an extra blob to help make packet_hash unique
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temp[4] = 0; // attempt and flags
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// calc expected ACK reply
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//mesh::Utils::sha256((uint8_t *)&expected_ack_crc, 4, temp, 5 + text_len, self_id.pub_key, PUB_KEY_SIZE);
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auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len); |
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if (reply) { |
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if (client->out_path_len < 0) { |
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sendFlood(reply, REPLY_DELAY_MILLIS); |
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} else { |
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sendDirect(reply, client->out_path, client->out_path_len, REPLY_DELAY_MILLIS); |
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} |
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} |
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} |
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} else { |
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MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected"); |
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} |
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} |
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} |
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bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override { |
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// TODO: prevent replay attacks
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int i = matching_peer_indexes[sender_idx]; |
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if (i >= 0 && i < num_clients) { // get from our known_clients table (sender SHOULD already be known in this context)
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MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t) path_len); |
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auto client = &known_clients[i]; |
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memcpy(client->out_path, path, client->out_path_len = path_len); // store a copy of path, for sendDirect()
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} else { |
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MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i); |
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} |
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if (extra_type == PAYLOAD_TYPE_ACK && extra_len >= 4) { |
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// also got an encoded ACK!
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processAck(extra); |
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} |
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// NOTE: no reciprocal path send!!
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return false; |
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} |
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void onAckRecv(mesh::Packet* packet, uint32_t ack_crc) override { |
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if (processAck((uint8_t *)&ack_crc)) { |
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packet->markDoNotRetransmit(); // ACK was for this node, so don't retransmit
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} |
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} |
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public: |
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MyMesh(RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables) |
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: mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables) |
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{ |
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my_radio = &radio; |
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airtime_factor = 1.0; // one half
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num_clients = 0; |
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next_post_idx = 0; |
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next_client_idx = 0; |
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next_push = 0; |
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memset(posts, 0, sizeof(posts)); |
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} |
||||
|
|
||||
|
#define ADV_TYPE_NONE 0 // unknown
|
||||
|
#define ADV_TYPE_CHAT 1 |
||||
|
#define ADV_TYPE_REPEATER 2 |
||||
|
#define ADV_TYPE_ROOM 3 // New kid on the block!
|
||||
|
//FUTURE: 4..15
|
||||
|
|
||||
|
#define ADV_LATLON_MASK 0x10 |
||||
|
#define ADV_BATTERY_MASK 0x20 |
||||
|
#define ADV_TEMPERATURE_MASK 0x40 |
||||
|
#define ADV_NAME_MASK 0x80 |
||||
|
|
||||
|
void sendSelfAdvertisement() { |
||||
|
uint8_t app_data[MAX_ADVERT_DATA_SIZE+32]; |
||||
|
app_data[0] = ADV_TYPE_ROOM | ADV_NAME_MASK; |
||||
|
int i = 1; |
||||
|
int32_t lat = ADVERT_LAT * 1E6; |
||||
|
int32_t lon = ADVERT_LON * 1E6; |
||||
|
if (!(lat == 0 && lon == 0)) { |
||||
|
app_data[0] |= ADV_LATLON_MASK; |
||||
|
memcpy(&app_data[i], &lat, 4); i += 4; |
||||
|
memcpy(&app_data[i], &lon, 4); i += 4; |
||||
|
} |
||||
|
strcpy((char *)&app_data[i], ADVERT_NAME); |
||||
|
int app_data_len = i + strlen(ADVERT_NAME); |
||||
|
if (app_data_len > MAX_ADVERT_DATA_SIZE) { |
||||
|
app_data_len = MAX_ADVERT_DATA_SIZE; |
||||
|
app_data[MAX_ADVERT_DATA_SIZE - 1] = 0; // truncate the ADVERT_NAME
|
||||
|
} |
||||
|
|
||||
|
mesh::Packet* pkt = createAdvert(self_id, app_data, app_data_len); |
||||
|
if (pkt) { |
||||
|
sendFlood(pkt, 1200); // add slight delay
|
||||
|
} else { |
||||
|
MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!"); |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
bool handleAdminCommand(uint32_t sender_timestamp, const char* command, char reply[]) { |
||||
|
while (*command == ' ') command++; // skip leading spaces
|
||||
|
|
||||
|
if (memcmp(command, "reboot", 6) == 0) { |
||||
|
board.reboot(); // doesn't return
|
||||
|
} else if (memcmp(command, "advert", 6) == 0) { |
||||
|
sendSelfAdvertisement(); |
||||
|
strcpy(reply, "OK - Advert sent"); |
||||
|
} else if (memcmp(command, "clock sync", 10) == 0) { |
||||
|
uint32_t curr = getRTCClock()->getCurrentTime(); |
||||
|
if (sender_timestamp > curr) { |
||||
|
getRTCClock()->setCurrentTime(sender_timestamp + 1); |
||||
|
strcpy(reply, "OK - clock set"); |
||||
|
} else { |
||||
|
strcpy(reply, "ERR: clock cannot go backwards"); |
||||
|
} |
||||
|
} else if (memcmp(command, "clock", 5) == 0) { |
||||
|
uint32_t now = getRTCClock()->getCurrentTime(); |
||||
|
DateTime dt = DateTime(now); |
||||
|
sprintf(reply, "%02d:%02d - %d/%d/%d UTC", dt.hour(), dt.minute(), dt.day(), dt.month(), dt.year()); |
||||
|
} else if (memcmp(command, "set ", 4) == 0) { |
||||
|
if (memcmp(&command[4], "AF", 2) == 0 || memcmp(&command[4], "af=", 2) == 0) { |
||||
|
airtime_factor = atof(&command[7]); |
||||
|
strcpy(reply, "OK"); |
||||
|
} else { |
||||
|
sprintf(reply, "unknown config: %s", &command[4]); |
||||
|
} |
||||
|
} else { |
||||
|
// unknown command
|
||||
|
return false; |
||||
|
} |
||||
|
return true; |
||||
|
} |
||||
|
|
||||
|
void loop() { |
||||
|
mesh::Mesh::loop(); |
||||
|
|
||||
|
if (millisHasNowPassed(next_push) && num_clients > 0) { |
||||
|
// check next Round-Robin client, and sync next new post
|
||||
|
auto client = &known_clients[next_client_idx]; |
||||
|
if (client->pending_ack == 0) { |
||||
|
for (int k = 0, idx = next_post_idx; k < MAX_UNSYNCED_POSTS; k++) { |
||||
|
if (posts[idx].post_timestamp > client->sync_since // is new post for this Client?
|
||||
|
&& !posts[idx].author.matches(client->id)) { // don't push posts to the author
|
||||
|
// push this post to Client, then wait for ACK
|
||||
|
pushPostToClient(client, posts[idx]); |
||||
|
break; |
||||
|
} |
||||
|
idx = (idx + 1) % MAX_UNSYNCED_POSTS; // wrap to start of cyclic queue
|
||||
|
} |
||||
|
} |
||||
|
next_client_idx = (next_client_idx + 1) % num_clients; // round robin polling for each client
|
||||
|
|
||||
|
next_push = futureMillis(SYNC_PUSH_INTERVAL); |
||||
|
} |
||||
|
|
||||
|
// TODO: periodically check for OLD/inactive entries in known_clients[], and evict
|
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
#if defined(NRF52_PLATFORM) |
||||
|
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI); |
||||
|
#elif defined(P_LORA_SCLK) |
||||
|
SPIClass spi; |
||||
|
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi); |
||||
|
#else |
||||
|
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY); |
||||
|
#endif |
||||
|
StdRNG fast_rng; |
||||
|
SimpleMeshTables tables; |
||||
|
|
||||
|
#ifdef ESP32 |
||||
|
ESP32RTCClock rtc_clock; |
||||
|
#else |
||||
|
VolatileRTCClock rtc_clock; |
||||
|
#endif |
||||
|
|
||||
|
MyMesh the_mesh(*new WRAPPER_CLASS(radio, board), *new ArduinoMillis(), fast_rng, rtc_clock, tables); |
||||
|
|
||||
|
void halt() { |
||||
|
while (1) ; |
||||
|
} |
||||
|
|
||||
|
static char command[MAX_POST_TEXT_LEN+1]; |
||||
|
|
||||
|
void setup() { |
||||
|
Serial.begin(115200); |
||||
|
delay(1000); |
||||
|
|
||||
|
board.begin(); |
||||
|
#ifdef ESP32 |
||||
|
rtc_clock.begin(); |
||||
|
#endif |
||||
|
|
||||
|
#ifdef SX126X_DIO3_TCXO_VOLTAGE |
||||
|
float tcxo = SX126X_DIO3_TCXO_VOLTAGE; |
||||
|
#else |
||||
|
float tcxo = 1.6f; |
||||
|
#endif |
||||
|
|
||||
|
#if defined(NRF52_PLATFORM) |
||||
|
SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI); |
||||
|
SPI.begin(); |
||||
|
#elif defined(P_LORA_SCLK) |
||||
|
spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI); |
||||
|
#endif |
||||
|
int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo); |
||||
|
if (status != RADIOLIB_ERR_NONE) { |
||||
|
delay(5000); |
||||
|
Serial.print("ERROR: radio init failed: "); |
||||
|
Serial.println(status); |
||||
|
halt(); |
||||
|
} |
||||
|
|
||||
|
radio.setCRC(0); |
||||
|
|
||||
|
#ifdef SX126X_CURRENT_LIMIT |
||||
|
radio.setCurrentLimit(SX126X_CURRENT_LIMIT); |
||||
|
#endif |
||||
|
|
||||
|
#ifdef SX126X_DIO2_AS_RF_SWITCH |
||||
|
radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH); |
||||
|
#endif |
||||
|
|
||||
|
#if defined(NRF52_PLATFORM) |
||||
|
InternalFS.begin(); |
||||
|
IdentityStore store(InternalFS, "/identity"); |
||||
|
#elif defined(ESP32) |
||||
|
SPIFFS.begin(true); |
||||
|
IdentityStore store(SPIFFS, "/identity"); |
||||
|
#else |
||||
|
#error "need to define filesystem" |
||||
|
#endif |
||||
|
if (!store.load("_main", the_mesh.self_id)) { |
||||
|
the_mesh.self_id = mesh::LocalIdentity(the_mesh.getRNG()); // create new random identity
|
||||
|
store.save("_main", the_mesh.self_id); |
||||
|
} |
||||
|
|
||||
|
Serial.print("Room ID: "); |
||||
|
mesh::Utils::printHex(Serial, the_mesh.self_id.pub_key, PUB_KEY_SIZE); Serial.println(); |
||||
|
|
||||
|
command[0] = 0; |
||||
|
|
||||
|
the_mesh.begin(); |
||||
|
|
||||
|
// send out initial Advertisement to the mesh
|
||||
|
the_mesh.sendSelfAdvertisement(); |
||||
|
} |
||||
|
|
||||
|
void loop() { |
||||
|
int len = strlen(command); |
||||
|
while (Serial.available() && len < sizeof(command)-1) { |
||||
|
char c = Serial.read(); |
||||
|
if (c != '\n') { |
||||
|
command[len++] = c; |
||||
|
command[len] = 0; |
||||
|
} |
||||
|
Serial.print(c); |
||||
|
} |
||||
|
if (len == sizeof(command)-1) { // command buffer full
|
||||
|
command[sizeof(command)-1] = '\r'; |
||||
|
} |
||||
|
|
||||
|
if (len > 0 && command[len - 1] == '\r') { // received complete line
|
||||
|
command[len - 1] = 0; // replace newline with C string null terminator
|
||||
|
char reply[160]; |
||||
|
the_mesh.handleAdminCommand(0, command, reply); // NOTE: there is no sender_timestamp via serial!
|
||||
|
if (reply[0]) { |
||||
|
Serial.print(" -> "); Serial.println(reply); |
||||
|
} |
||||
|
|
||||
|
command[0] = 0; // reset command buffer
|
||||
|
} |
||||
|
|
||||
|
the_mesh.loop(); |
||||
|
} |
||||
Loading…
Reference in new issue