[NOD-89] Remove BTC seeders from seeder list in all nets and remove D… (#240)

* [NOD-89] Remove BTC seeders from seeder list in all nets and remove DNSSeed type

* [NOD-89] Unremove daglabs dns seed

connmgr/seed.go

@@ -43,10 +43,10 @@ func SeedFromDNS(dagParams *dagconfig.Params, reqServices wire.ServiceFlag, subn
 
 	for _, dnsseed := range dagParams.DNSSeeds {
 		var host string
-		if !dnsseed.HasFiltering || reqServices == wire.SFNodeNetwork {
+		if reqServices == wire.SFNodeNetwork {
-			host = dnsseed.Host
+			host = dnsseed
 		} else {
-			host = fmt.Sprintf("%c%x.%s", ServiceFlagPrefixChar, uint64(reqServices), dnsseed.Host)
+			host = fmt.Sprintf("%c%x.%s", ServiceFlagPrefixChar, uint64(reqServices), dnsseed)
 		}
 
 		if !subnetworkID.IsEqual(subnetworkid.SubnetworkIDSupportsAll) {

dagconfig/params.go

@@ -61,16 +61,6 @@ type Checkpoint struct {
 	Hash   *daghash.Hash
 }
 
-// DNSSeed identifies a DNS seed.
-type DNSSeed struct {
-	// Host defines the hostname of the seed.
-	Host string
-
-	// HasFiltering defines whether the seed supports filtering
-	// by service flags (wire.ServiceFlag).
-	HasFiltering bool
-}
-
 // ConsensusDeployment defines details related to a specific consensus rule
 // change that is voted in.  This is part of BIP0009.
 type ConsensusDeployment struct {
@@ -122,7 +112,7 @@ type Params struct {
 
 	// DNSSeeds defines a list of DNS seeds for the network that are used
 	// as one method to discover peers.
-	DNSSeeds []DNSSeed
+	DNSSeeds []string
 
 	// GenesisBlock defines the first block of the chain.
 	GenesisBlock *wire.MsgBlock
@@ -224,14 +214,7 @@ var MainNetParams = Params{
 	Net:         wire.MainNet,
 	RPCPort:     "8334",
 	DefaultPort: "8333",
-	DNSSeeds: []DNSSeed{
+	DNSSeeds:    []string{},
-		{"seed.bitcoin.sipa.be", true},
-		{"dnsseed.bluematt.me", true},
-		{"dnsseed.bitcoin.dashjr.org", false},
-		{"seed.bitcoinstats.com", true},
-		{"seed.bitnodes.io", false},
-		{"seed.bitcoin.jonasschnelli.ch", true},
-	},
 
 	// DAG parameters
 	GenesisBlock:             &genesisBlock,
@@ -294,7 +277,7 @@ var RegressionNetParams = Params{
 	Net:         wire.TestNet,
 	RPCPort:     "18334",
 	DefaultPort: "18444",
-	DNSSeeds:    []DNSSeed{},
+	DNSSeeds:    []string{},
 
 	// Chain parameters
 	GenesisBlock:             &regTestGenesisBlock,
@@ -357,12 +340,7 @@ var TestNet3Params = Params{
 	Net:         wire.TestNet3,
 	RPCPort:     "18334",
 	DefaultPort: "18333",
-	DNSSeeds: []DNSSeed{
+	DNSSeeds:    []string{},
-		{"testnet-seed.alexykot.me", false},
-		{"testnet-seed.bitcoin.petertodd.org", false},
-		{"testnet-seed.bluematt.me", false},
-		{"testnet-seed.bitcoin.schildbach.de", false},
-	},
 
 	// Chain parameters
 	GenesisBlock:             &testNet3GenesisBlock,
@@ -429,7 +407,7 @@ var SimNetParams = Params{
 	Net:         wire.SimNet,
 	RPCPort:     "18556",
 	DefaultPort: "18555",
-	DNSSeeds:    []DNSSeed{}, // NOTE: There must NOT be any seeds.
+	DNSSeeds:    []string{}, // NOTE: There must NOT be any seeds.
 
 	// Chain parameters
 	GenesisBlock:             &simNetGenesisBlock,
@@ -488,9 +466,7 @@ var DevNetParams = Params{
 	Net:         wire.DevNet,
 	RPCPort:     "18334",
 	DefaultPort: "18333",
-	DNSSeeds: []DNSSeed{
+	DNSSeeds:    []string{"devnet-dnsseed.daglabs.com"},
-		{"devnet-dnsseed.daglabs.com", true},
-	},
 
 	// Chain parameters
 	GenesisBlock:             &devNetGenesisBlock,
@@ -555,11 +531,6 @@ var (
 	registeredNets = make(map[wire.BitcoinNet]struct{})
 )
 
-// String returns the hostname of the DNS seed in human-readable form.
-func (d DNSSeed) String() string {
-	return d.Host
-}
-
 // Register registers the network parameters for a Bitcoin network.  This may
 // error with ErrDuplicateNet if the network is already registered (either
 // due to a previous Register call, or the network being one of the default

dagconfig/params_test.go

@@ -57,13 +57,3 @@ func TestMustRegisterPanic(t *testing.T) {
 	// Intentionally try to register duplicate params to force a panic.
 	mustRegister(&MainNetParams)
 }
-
-func TestDNSSeedToString(t *testing.T) {
-	host := "test.dns.seed.com"
-	seed := DNSSeed{HasFiltering: false, Host: host}
-
-	result := seed.String()
-	if result != host {
-		t.Errorf("TestDNSSeedToString: Expected: %s, but got: %s", host, result)
-	}
-}