1. added NetworkDomain and default values

src/config/config.go

@@ -39,6 +39,7 @@ type NodeConfig struct {
 	IfMTU               uint64                     `comment:"Maximum Transmission Unit (MTU) size for your local TUN interface.\nDefault is the largest supported size for your platform. The lowest\npossible value is 1280."`
 	NodeInfoPrivacy     bool                       `comment:"By default, nodeinfo contains some defaults including the platform,\narchitecture and RiV-mesh version. These can help when surveying\nthe network and diagnosing network routing problems. Enabling\nnodeinfo privacy prevents this, so that only items specified in\n\"NodeInfo\" are sent back if specified."`
 	NodeInfo            map[string]interface{}     `comment:"Optional node info. This must be a { \"key\": \"value\", ... } map\nor set as null. This is entirely optional but, if set, is visible\nto the whole network on request."`
+	NetworkDomain       NetworkDomainConfig        `comment:"Address prefix used by mesh.\nThe current implementation requires this to be a multiple of 8 bits + 7 bits.4\nNodes that configure this differently will be unable to communicate with each other using IP packets."`
 }
 
 type MulticastInterfaceConfig struct {
@@ -49,6 +50,10 @@ type MulticastInterfaceConfig struct {
 	Priority uint8
 }
 
+type NetworkDomainConfig struct {
+        Prefix [1]byte
+}
+
 // NewSigningKeys replaces the signing keypair in the NodeConfig with a new
 // signing keypair. The signing keys are used by the switch to derive the
 // structure of the spanning tree.

src/defaults/defaults.go

@@ -3,6 +3,7 @@ package defaults
 import "github.com/RiV-chain/RiV-mesh/src/config"
 
 type MulticastInterfaceConfig = config.MulticastInterfaceConfig
+type NetworkDomainConfig = config.NetworkDomainConfig
 
 var defaultConfig = ""      // LDFLAGS='-X github.com/yggdrasil-network/yggdrasil-go/src/defaults.defaultConfig=/path/to/config
 var defaultAdminListen = "" // LDFLAGS='-X github.com/yggdrasil-network/yggdrasil-go/src/defaults.defaultAdminListen=unix://path/to/sock'
@@ -20,6 +21,9 @@ type platformDefaultParameters struct {
 	// Multicast interfaces
 	DefaultMulticastInterfaces []MulticastInterfaceConfig
 
+	//Network domain
+	DefaultNetworkDomain NetworkDomainConfig
+
 	// TUN
 	MaximumIfMTU  uint64
 	DefaultIfMTU  uint64
@@ -52,6 +56,7 @@ func GenerateConfig() *config.NodeConfig {
 	cfg.InterfacePeers = map[string][]string{}
 	cfg.AllowedPublicKeys = []string{}
 	cfg.MulticastInterfaces = defaults.DefaultMulticastInterfaces
+	cfg.NetworkDomain = defaults.DefaultNetworkDomain
 	cfg.IfName = defaults.DefaultIfName
 	cfg.IfMTU = defaults.DefaultIfMTU
 	cfg.NodeInfoPrivacy = false

src/defaults/defaults_darwin.go

@@ -19,6 +19,11 @@ func getDefaults() platformDefaultParameters {
 			{Regex: "bridge.*", Beacon: true, Listen: true},
 		},
 
+		// Network domain
+                DefaultNetworkDomain: NetworkDomainConfig{
+                        Prefix: [...]byte{0xfc},
+                },
+
 		// TUN
 		MaximumIfMTU:  65535,
 		DefaultIfMTU:  65535,

src/defaults/defaults_freebsd.go

@@ -18,6 +18,11 @@ func getDefaults() platformDefaultParameters {
 			{Regex: ".*", Beacon: true, Listen: true},
 		},
 
+                // Network domain
+                DefaultNetworkDomain: NetworkDomainConfig{
+                        Prefix: [...]byte{0xfc},
+                },
+
 		// TUN
 		MaximumIfMTU:  32767,
 		DefaultIfMTU:  32767,

src/defaults/defaults_linux.go

@@ -18,6 +18,11 @@ func getDefaults() platformDefaultParameters {
 			{Regex: ".*", Beacon: true, Listen: true},
 		},
 
+                // Network domain
+                DefaultNetworkDomain: NetworkDomainConfig{
+                        Prefix: [...]byte{0xfc},
+                },
+
 		// TUN
 		MaximumIfMTU:  65535,
 		DefaultIfMTU:  65535,

src/defaults/defaults_openbsd.go

@@ -18,6 +18,11 @@ func getDefaults() platformDefaultParameters {
 			{Regex: ".*", Beacon: true, Listen: true},
 		},
 
+                // Network domain
+                DefaultNetworkDomain: NetworkDomainConfig{
+                        Prefix: [...]byte{0xfc},
+                },
+
 		// TUN
 		MaximumIfMTU:  16384,
 		DefaultIfMTU:  16384,

src/defaults/defaults_other.go

@@ -18,6 +18,11 @@ func getDefaults() platformDefaultParameters {
 			{Regex: ".*", Beacon: true, Listen: true},
 		},
 
+                // Network domain
+                DefaultNetworkDomain: NetworkDomainConfig{
+                        Prefix: [...]byte{0xfc},
+                },
+
 		// TUN
 		MaximumIfMTU:  65535,
 		DefaultIfMTU:  65535,

src/defaults/defaults_windows.go

@@ -18,6 +18,11 @@ func getDefaults() platformDefaultParameters {
 			{Regex: ".*", Beacon: true, Listen: true},
 		},
 
+                // Network domain
+                DefaultNetworkDomain: NetworkDomainConfig{
+                        Prefix: [...]byte{0xfc},
+                },
+
 		// TUN
 		MaximumIfMTU:  65535,
 		DefaultIfMTU:  65535,