yggdrasil-network/yggdrasil-go
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This commit is contained in:
Neil Alexander 2020-05-31 17:48:54 +01:00
parent ed3bf5ef07
commit de06b4656a
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GPG key ID: A02A2019A2BB0944
5 changed files with 177 additions and 61 deletions
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58
src/multicast/multicast.go
View file

@ -4,7 +4,6 @@ import (
"context"
"fmt"
"net"
"regexp"
"time"
"github.com/Arceliar/phony"
@ -155,23 +154,6 @@ func (m *Multicast) _updateConfig(config *config.NodeConfig) {
m.log.Debugln("Reloaded multicast configuration successfully")
}
func (m *Multicast) _updateInterfaces() {
interfaces := make(map[string]interfaceInfo)
intfs := m.getAllowedInterfaces()
for _, intf := range intfs {
addrs, err := intf.Addrs()
if err != nil {
m.log.Warnf("Failed up get addresses for interface %s: %s", intf.Name, err)
continue
}
interfaces[intf.Name] = interfaceInfo{
iface: intf,
addrs: addrs,
}
}
m._interfaces = interfaces
}
func (m *Multicast) Interfaces() map[string]net.Interface {
interfaces := make(map[string]net.Interface)
phony.Block(m, func() {
@ -182,46 +164,6 @@ func (m *Multicast) Interfaces() map[string]net.Interface {
return interfaces
}
// getAllowedInterfaces returns the currently known/enabled multicast interfaces.
func (m *Multicast) getAllowedInterfaces() map[string]net.Interface {
interfaces := make(map[string]net.Interface)
// Get interface expressions from config
current := m.config.GetCurrent()
exprs := current.MulticastInterfaces
// Ask the system for network interfaces
allifaces, err := net.Interfaces()
if err != nil {
panic(err)
}
// Work out which interfaces to announce on
for _, iface := range allifaces {
if iface.Flags&net.FlagUp == 0 {
// Ignore interfaces that are down
continue
}
if iface.Flags&net.FlagMulticast == 0 {
// Ignore non-multicast interfaces
continue
}
if iface.Flags&net.FlagPointToPoint != 0 {
// Ignore point-to-point interfaces
continue
}
for _, expr := range exprs {
// Compile each regular expression
e, err := regexp.Compile(expr)
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
}
}
}
return interfaces
}
func (m *Multicast) _announce() {
if !m.isOpen {
return