Blockchain_name parameter, sub-folder for <blockchain_name>.settings.conf files

README.md

@@ -4,6 +4,9 @@
 
 The generic-seeder is a blockchain network crawler that maintains a list of IP addresses of the most reliable nodes on the network and shares those node IPs via DNS request to anyone requiring an entry point into the decentralized network. Choose between two main usage modes which consist of locally running a lightweight DNS server or feeding the data into a [Cloudflare](https://www.cloudflare.com/) account in order to respond to DNS seed requests. If you just want to crawl a network to get a list of the connectable nodes, without worrying about the DNS setup, you can do that too. The seeder app is compatible with almost any bitcoin-based blockchain network and can be configured in a short amount of time by filling out a small handful of parameters in the configuration file with the data from your coin's network. Tested to work with Ubuntu 18.04+ and Debian 8.x+ but it should work fine on any Linux installation, although package names and install steps may differ.
 
+This version introduces the Settings/ folder to collect pre-configured settings.conf files for different blockchains. 
+For use as a Bitmark Node Tracker / DNS Seeder, the configuration file settings.conf is provided, as well as a backup copy Settings/MARKS.settings.conf 
+
 ## Table of Contents
 
 - [Features](#features)
@@ -280,4 +283,4 @@ Once configured correctly, it is recommended to set up a cron job that will auto
      Usage Example: `./dnsseed -?`
 
 ---
-Need more help? Read the [DNS Seeder Setup Guide](/SETUP.md)
+Need more help? Read the [DNS Seeder Setup Guide](/SETUP.md)

Settings/MARKS.settings.conf

@@ -0,0 +1,49 @@
+//  BlockChain parameters and Protocol version numbers
+//---------------------------------------------------------------------------------------------------------------------------------------------/
+blockchain_name="Bitmark"	//
+protocol_version="70003"        // --- Typically, these are found ( protocol version,init_proto_version, etc)  in the coin's version.h file
+init_proto_version="209"        //              
+min_peer_proto_version="209"  //        Leave blank or set to the same value as protocol_version if not applicable in your blockchain
+caddr_time_version="31402"      //  
+pchMessageStart_0 = "0xf9"      // --- Typically you can find the 4 pchMessageStart values in your coin's main.cpp or chainparams.cpp file
+pchMessageStart_1 = "0xbe"      //  
+pchMessageStart_2 = "0xb4"      //  
+pchMessageStart_3 = "0xd9"      //    
+wallet_port="9265"         	// P2P port: The coin servers's main port
+
+//  BlockHeight - Get up-to-date value or default to predetermined height.
+//---------------------------------------------------------------------------------------------------------------------------------------------/
+                                // Set to a block explorer url that returns the current block height. 
+                                // Leave blank to default to the block_count value below
+explorer_url="https://chainz.cryptoid.info/marks/api.dws?q=getblockcount"         	//  
+                                // A 2nd block explorer url to be used as backup in case that the 1st block explorer is unreachable
+second_explorer_url=""  	//   example: "http://blockexplorer.deutsche-emark.org/api/getblockcount"
+explorer_requery_seconds="120"  // Used in conjunction with the explorer_url and second_explorer_url parameters. 
+                                // Interval in seconds for querying the current block height value from block explorer api url(s). 
+                                // Typically recommended set to the block interval target time.
+block_count="1118363"           // A node cannot be considered "good" unless it has a block height greater or equal to this value. 
+				//     http://compoasso.free.fr/primelistweb/page/prime/liste_online_en.php 5 × 17 × 13159
+                                // This value is only used if both explorer_url and second_explorer_url are left blank 
+                                // or when the explorer(s) cannot be contacted
+
+// Static Node - hosts committed to continually run node
+//----------------------------------------------------------------------------------------------------------------------------------------------/
+// At least one valid seed ip address is required to begin crawling the network
+seed_1="139.162.128.92"		// Frank  - Frankfurt, - 	Germany
+seed_2="94.137.177.227"		// Anton  - Tbilisi, -		Georgia
+seed_3="139.162.122.138"        // Akio	  - Tokyo, - 		Japan
+seed_4="173.255.252.140"	// Sam	  - Fremont, CA - 	USA
+seed_5="206.72.198.107"		// Vinny  - Seacaucus, NJ - 	USA
+seed_6="45.56.75.20"		// Speedy - Dallas, TX - 	USA
+seed_7="139.162.35.170"		// Ben	  - Singapore - 	Singapore
+seed_8="139.162.155.117"	// Baum   - Frankfurt - 	Germany
+seed_9=""
+seed_10=""
+
+// CloudFlare
+//---------------------------------------------------------------------------------------------------------------------------------------------/ 
+cf_domain=""
+cf_domain_prefix=""
+cf_username="[email protected]"
+cf_api_key=""
+cf_seed_dump="dnsseed.dump"

main.cpp

@@ -27,6 +27,7 @@ string sCurrentBlock;
 int nCurrentBlock = -1;
 int nDefaultBlockHeight = -1;
 
+string	cfg_blockchain_name;
 int cfg_protocol_version;
 int cfg_init_proto_version;
 int cfg_min_peer_proto_version;
@@ -39,6 +40,7 @@ int cfg_explorer_requery_seconds;
 
 class CDnsSeedOpts {
 public:
+//  string blockchain_name ??
   int nThreads;
   int nPort;
   int nDnsThreads;
@@ -62,8 +64,8 @@ class CDnsSeedOpts {
                               "Usage: %s -h <host> -n <ns> [-m <mbox>] [-t <threads>] [-p <port>]\n"
                               "\n"
                               "Options:\n"
-                              "-h <host>       Hostname of the DNS seed\n"
-                              "-n <ns>         Hostname of the nameserver\n"
+                              "-h <host>       Name of the sub-domain to name-serve\n"
+                              "-n <ns>         IP address of this nameserver\n"
                               "-m <mbox>       E-Mail address reported in SOA records\n"
                               "-t <threads>    Number of crawlers to run in parallel (default 96)\n"
                               "-d <threads>    Number of DNS server threads (default 4)\n"
@@ -609,8 +611,9 @@ extern "C" void* ThreadSeeder(void*) {
 int main(int argc, char **argv) {
   Config cfg;
   string sConfigName = "settings.conf";
-  printf("%s\n", (sAppName + " v" + sAppVersion).c_str());
+  //printf("%s\n", (sAppName + " v" + sAppVersion).c_str());
 
+  // Read "settings.conf" file for configuration parameters.
   try {
     cfg.readFile(sConfigName.c_str());
   } catch(const FileIOException &fioex) {
@@ -621,7 +624,17 @@ int main(int argc, char **argv) {
               << " - " << pex.getError() << std::endl;
     return(EXIT_FAILURE);
   }
-
+
+  // This version introduces "BlockChain Name" parameter 
+  try {
+    cfg_blockchain_name = cfg.lookup("blockchain_name").c_str();
+    cout << cfg_blockchain_name << " -  DNS Seed Server - " << sAppName << " v" << sAppVersion << "\n";
+  } catch(const SettingNotFoundException &nfex) {
+        // return(EXIT_FAILURE); // Too drastic: can ignore this failure
+        cout << "Missing 'blockchain_name' setting in configuration file." << endl;
+        cout << "Please set blockchain_name=\"<name>\" parameter in 'settings.conf' file\n";
+  }
+
   try {
     cfg_protocol_version = std::stoi(cfg.lookup("protocol_version").c_str());
   } catch(const SettingNotFoundException &nfex) {
@@ -662,7 +675,7 @@ int main(int argc, char **argv) {
   try {
     cfg_wallet_port = std::stoi(cfg.lookup("wallet_port").c_str());
   } catch(const SettingNotFoundException &nfex) {
-    cerr << "Error: Missing 'wallet_port' setting in configuration file." << endl;
+    cerr << "Error: Missing 'wallet_port' setting in configuration file. (ie., this blockchain's standard P2P port)" << endl;
 	return(EXIT_FAILURE);
   }
 
@@ -682,6 +695,12 @@ int main(int argc, char **argv) {
 	  cfg_explorer_url2 = "";
   }  
 
+  if (!cfg_explorer_url.empty()) {
+      cout << "Explorer: " << cfg_explorer_url << "\n";
+   } else {
+      cout << "Explorer URL not set.\n";
+  }
+
   try {
       if (is_numeric(const_cast<char*>(cfg.lookup("explorer_requery_seconds").c_str()))) {
           cfg_explorer_requery_seconds = std::stoi(cfg.lookup("explorer_requery_seconds").c_str());
@@ -710,6 +729,11 @@ int main(int argc, char **argv) {
 	return(EXIT_FAILURE);
   }
 
+  if (cfg_explorer_url.empty()) {
+      cout << "Will accept nodes reporting blockheight at or above: " << nDefaultBlockHeight << endl;
+  } else {
+      cout << "Will seek current blockheight info from: " << cfg_explorer_url << endl;
+  }
   for (int i=1; i<=10; i++) {
 	  try {
 		sSeeds[i-1] = cfg.lookup("seed_" + std::to_string(i)).c_str();
@@ -722,7 +746,8 @@ int main(int argc, char **argv) {
   signal(SIGPIPE, SIG_IGN);
   setbuf(stdout, NULL);
   CDnsSeedOpts opts;
-  opts.ParseCommandLine(argc, argv);
+  opts.ParseCommandLine(argc, argv); //  Check for command line arguments
+
   printf("Supporting whitelisted filters: ");
   for (std::set<uint64_t>::const_iterator it = opts.filter_whitelist.begin(); it != opts.filter_whitelist.end(); it++) {
       if (it != opts.filter_whitelist.begin()) {
@@ -813,9 +838,14 @@ int main(int argc, char **argv) {
   }
   pthread_attr_destroy(&attr_crawler);
   printf("done\n");
+
+  cout << "\n   " << cfg_blockchain_name << " -  DNS Seed Server\n";
+  cout << "\t for sub-domain: " << opts.host << endl;
+  cout << "\t ( Query with: \'dig -p " << opts.nPort << " @" << opts.ns << " " << opts.host <<"\' )\n" << endl;
+
   pthread_create(&threadStats, NULL, ThreadStats, NULL);
   pthread_create(&threadDump, NULL, ThreadDumper, NULL);
   void* res;
   pthread_join(threadDump, &res);
   return 0;
-}
+}

settings.conf

@@ -0,0 +1,49 @@
+//  BlockChain parameters and Protocol version numbers
+//---------------------------------------------------------------------------------------------------------------------------------------------/
+blockchain_name="Bitmark"	//
+protocol_version="70003"        // --- Typically, these are found ( protocol version,init_proto_version, etc)  in the coin's version.h file
+init_proto_version="209"        //              
+min_peer_proto_version="209"  //        Leave blank or set to the same value as protocol_version if not applicable in your blockchain
+caddr_time_version="31402"      //  
+pchMessageStart_0 = "0xf9"      // --- Typically you can find the 4 pchMessageStart values in your coin's main.cpp or chainparams.cpp file
+pchMessageStart_1 = "0xbe"      //  
+pchMessageStart_2 = "0xb4"      //  
+pchMessageStart_3 = "0xd9"      //    
+wallet_port="9265"         	// P2P port: The coin servers's main port
+
+//  BlockHeight - Get up-to-date value or default to predetermined height.
+//---------------------------------------------------------------------------------------------------------------------------------------------/
+                                // Set to a block explorer url that returns the current block height. 
+                                // Leave blank to default to the block_count value below
+explorer_url="https://chainz.cryptoid.info/marks/api.dws?q=getblockcount"         	//  
+                                // A 2nd block explorer url to be used as backup in case that the 1st block explorer is unreachable
+second_explorer_url=""  	//   example: "http://blockexplorer.deutsche-emark.org/api/getblockcount"
+explorer_requery_seconds="120"  // Used in conjunction with the explorer_url and second_explorer_url parameters. 
+                                // Interval in seconds for querying the current block height value from block explorer api url(s). 
+                                // Typically recommended set to the block interval target time.
+block_count="1118363"           // A node cannot be considered "good" unless it has a block height greater or equal to this value. 
+				//     http://compoasso.free.fr/primelistweb/page/prime/liste_online_en.php 5 × 17 × 13159
+                                // This value is only used if both explorer_url and second_explorer_url are left blank 
+                                // or when the explorer(s) cannot be contacted
+
+// Static Node - hosts committed to continually run node
+//----------------------------------------------------------------------------------------------------------------------------------------------/
+// At least one valid seed ip address is required to begin crawling the network
+seed_1="139.162.128.92"		// Frank  - Frankfurt, - 	Germany
+seed_2="94.137.177.227"		// Anton  - Tbilisi, -		Georgia
+seed_3="139.162.122.138"        // Akio	  - Tokyo, - 		Japan
+seed_4="173.255.252.140"	// Sam	  - Fremont, CA - 	USA
+seed_5="206.72.198.107"		// Vinny  - Seacaucus, NJ - 	USA
+seed_6="45.56.75.20"		// Speedy - Dallas, TX - 	USA
+seed_7="139.162.35.170"		// Ben	  - Singapore - 	Singapore
+seed_8="139.162.155.117"	// Baum   - Frankfurt - 	Germany
+seed_9=""
+seed_10=""
+
+// CloudFlare
+//---------------------------------------------------------------------------------------------------------------------------------------------/ 
+cf_domain=""
+cf_domain_prefix=""
+cf_username="[email protected]"
+cf_api_key=""
+cf_seed_dump="dnsseed.dump"