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mirror of https://github.com/cwinfo/yggdrasil-go.git synced 2024-11-09 16:20:26 +00:00

change multicast config format

This commit is contained in:
Arceliar 2021-06-27 03:15:41 -05:00
parent 2a7a53b6b6
commit 2874ce1327
9 changed files with 68 additions and 47 deletions

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@ -31,7 +31,7 @@ type NodeConfig struct {
InterfacePeers map[string][]string `comment:"List of connection strings for outbound peer connections in URI format,\narranged by source interface, e.g. { \"eth0\": [ tls://a.b.c.d:e ] }.\nNote that SOCKS peerings will NOT be affected by this option and should\ngo in the \"Peers\" section instead."`
Listen []string `comment:"Listen addresses for incoming connections. You will need to add\nlisteners in order to accept incoming peerings from non-local nodes.\nMulticast peer discovery will work regardless of any listeners set\nhere. Each listener should be specified in URI format as above, e.g.\ntls://0.0.0.0:0 or tls://[::]:0 to listen on all interfaces."`
AdminListen string `comment:"Listen address for admin connections. Default is to listen for local\nconnections either on TCP/9001 or a UNIX socket depending on your\nplatform. Use this value for yggdrasilctl -endpoint=X. To disable\nthe admin socket, use the value \"none\" instead."`
MulticastInterfaces []string `comment:"Regular expressions for which interfaces multicast peer discovery\nshould be enabled on. If none specified, multicast peer discovery is\ndisabled. The default value is .* which uses all interfaces."`
MulticastInterfaces []MulticastInterfaceConfig `comment:"Regular expressions for which interfaces multicast peer discovery\nshould be enabled on. If none specified, multicast peer discovery is\ndisabled. The default value is .* which uses all interfaces."`
AllowedPublicKeys []string `comment:"List of peer public keys to allow incoming peering connections\nfrom. If left empty/undefined then all connections will be allowed\nby default. This does not affect outgoing peerings, nor does it\naffect link-local peers discovered via multicast."`
PublicKey string `comment:"Your public key. Your peers may ask you for this to put\ninto their AllowedPublicKeys configuration."`
PrivateKey string `comment:"Your private key. DO NOT share this with anyone!"`
@ -42,6 +42,12 @@ type NodeConfig struct {
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."`
}
type MulticastInterfaceConfig struct {
Regex string
Incoming bool
Outgoing bool
}
// 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.

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@ -2,6 +2,8 @@ package defaults
import "github.com/yggdrasil-network/yggdrasil-go/src/config"
type MulticastInterfaceConfig = config.MulticastInterfaceConfig
// Defines which parameters are expected by default for configuration on a
// specific platform. These values are populated in the relevant defaults_*.go
// for the platform being targeted. They must be set.
@ -13,7 +15,7 @@ type platformDefaultParameters struct {
DefaultConfigFile string
// Multicast interfaces
DefaultMulticastInterfaces []string
DefaultMulticastInterfaces []MulticastInterfaceConfig
// TUN/TAP
MaximumIfMTU uint64

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@ -13,9 +13,9 @@ func GetDefaults() platformDefaultParameters {
DefaultConfigFile: "/etc/yggdrasil.conf",
// Multicast interfaces
DefaultMulticastInterfaces: []string{
"en.*",
"bridge.*",
DefaultMulticastInterfaces: []MulticastInterfaceConfig{
{Regex: "en.*", Incoming: true, Outgoing: true},
{Regex: "bridge.*", Incoming: true, Outgoing: true},
},
// TUN/TAP

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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
DefaultConfigFile: "/usr/local/etc/yggdrasil.conf",
// Multicast interfaces
DefaultMulticastInterfaces: []string{
".*",
DefaultMulticastInterfaces: []MulticastInterfaceConfig{
{Regex: ".*", Incoming: true, Outgoing: true},
},
// TUN/TAP

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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
DefaultConfigFile: "/etc/yggdrasil.conf",
// Multicast interfaces
DefaultMulticastInterfaces: []string{
".*",
DefaultMulticastInterfaces: []MulticastInterfaceConfig{
{Regex: ".*", Incoming: true, Outgoing: true},
},
// TUN/TAP

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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
DefaultConfigFile: "/etc/yggdrasil.conf",
// Multicast interfaces
DefaultMulticastInterfaces: []string{
".*",
DefaultMulticastInterfaces: []MulticastInterfaceConfig{
{Regex: ".*", Incoming: true, Outgoing: true},
},
// TUN/TAP

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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
DefaultConfigFile: "/etc/yggdrasil.conf",
// Multicast interfaces
DefaultMulticastInterfaces: []string{
".*",
DefaultMulticastInterfaces: []MulticastInterfaceConfig{
{Regex: ".*", Incoming: true, Outgoing: true},
},
// TUN/TAP

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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
DefaultConfigFile: "C:\\Program Files\\Yggdrasil\\yggdrasil.conf",
// Multicast interfaces
DefaultMulticastInterfaces: []string{
".*",
DefaultMulticastInterfaces: []MulticastInterfaceConfig{
{Regex: ".*", Incoming: true, Outgoing: true},
},
// TUN/TAP

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@ -40,6 +40,8 @@ type Multicast struct {
type interfaceInfo struct {
iface net.Interface
addrs []net.Addr
incoming bool
outgoing bool
}
type listenerInfo struct {
@ -136,18 +138,16 @@ func (m *Multicast) _stop() error {
}
func (m *Multicast) _updateInterfaces() {
interfaces := make(map[string]interfaceInfo)
intfs := m.getAllowedInterfaces()
for _, intf := range intfs {
addrs, err := intf.Addrs()
interfaces := m.getAllowedInterfaces()
for name, info := range interfaces {
addrs, err := info.iface.Addrs()
if err != nil {
m.log.Warnf("Failed up get addresses for interface %s: %s", intf.Name, err)
m.log.Warnf("Failed up get addresses for interface %s: %s", name, err)
delete(interfaces, name)
continue
}
interfaces[intf.Name] = interfaceInfo{
iface: intf,
addrs: addrs,
}
info.addrs = addrs
interfaces[name] = info
}
m._interfaces = interfaces
}
@ -163,10 +163,10 @@ func (m *Multicast) Interfaces() map[string]net.Interface {
}
// getAllowedInterfaces returns the currently known/enabled multicast interfaces.
func (m *Multicast) getAllowedInterfaces() map[string]net.Interface {
interfaces := make(map[string]net.Interface)
func (m *Multicast) getAllowedInterfaces() map[string]interfaceInfo {
interfaces := make(map[string]interfaceInfo)
// Get interface expressions from config
exprs := m.config.MulticastInterfaces
ifcfgs := m.config.MulticastInterfaces
// Ask the system for network interfaces
allifaces, err := net.Interfaces()
if err != nil {
@ -188,15 +188,23 @@ func (m *Multicast) getAllowedInterfaces() map[string]net.Interface {
// Ignore point-to-point interfaces
continue
}
for _, expr := range exprs {
for _, ifcfg := range ifcfgs {
// Compile each regular expression
e, err := regexp.Compile(expr)
e, err := regexp.Compile(ifcfg.Regex)
if err != nil {
panic(err)
}
// Does the interface match the regular expression? Store it if so
if e.MatchString(iface.Name) {
interfaces[iface.Name] = iface
if ifcfg.Incoming || ifcfg.Outgoing {
info := interfaceInfo{
iface: iface,
incoming: ifcfg.Incoming,
outgoing: ifcfg.Outgoing,
}
interfaces[iface.Name] = info
}
break
}
}
}
@ -272,8 +280,13 @@ func (m *Multicast) _announce() {
if !addrIP.IsLinkLocalUnicast() {
continue
}
// Join the multicast group
if info.outgoing {
// Join the multicast group, so we can listen for advertisements to open outgoing connections
_ = m.sock.JoinGroup(&iface, groupAddr)
}
if !info.incoming {
break // Don't send multicast advertisements if we don't accept incoming connections
}
// Try and see if we already have a TCP listener for this interface
var info *listenerInfo
if nfo, ok := m.listeners[iface.Name]; !ok || nfo.listener.Listener == nil {
@ -378,7 +391,7 @@ func (m *Multicast) listen() {
phony.Block(m, func() {
interfaces = m._interfaces
})
if _, ok := interfaces[from.Zone]; ok {
if info, ok := interfaces[from.Zone]; ok && info.outgoing {
addr.Zone = ""
pin := fmt.Sprintf("/?key=%s", hex.EncodeToString(key))
u, err := url.Parse("tls://" + addr.String() + pin)