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https://github.com/lucheng0127/virtuallan.git
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395129216e
Support build windows client. Use in windows, make sure you have been install tap-windows properly. After launch, the windows client will now listen udp multicast so if you need to config routes by yourself
61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
package server
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"time"
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"github.com/lucheng0127/virtuallan/pkg/packet"
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"github.com/lucheng0127/virtuallan/pkg/utils"
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log "github.com/sirupsen/logrus"
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)
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func (svc *Server) GetRoutes() string {
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rawData := ""
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for _, route := range svc.ServerConfig.Routes {
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nexthopIP := svc.Routes[route.Nexthop]
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if nexthopIP == "" {
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continue
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}
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rawData += fmt.Sprintf("%s>%s\n", route.CIDR, nexthopIP)
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}
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return rawData
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}
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func (svc *Server) GetRouteStreams() []byte {
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return []byte(svc.GetRoutes())
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}
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func (svc *Server) GetRouteEntries() map[string]string {
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return utils.ParseRoutesStream(svc.GetRouteStreams())
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}
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func (svc *Server) MulticastRoutes() error {
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routeStream := svc.GetRouteStreams()
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if len(routeStream) == 0 {
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// Server not config routes
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return nil
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}
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// Add routes prefix in multicast data
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buf := new(bytes.Buffer)
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if err := binary.Write(buf, binary.BigEndian, packet.ROUTES_PREFIX); err != nil {
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return err
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}
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stream := append(buf.Bytes(), routeStream...)
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// XXX: Make 50ms delay to send multicast routes, to prevent endpoint start too fast don't receive route multicast
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time.Sleep(50 * time.Microsecond)
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if err := packet.MulticastStream(stream); err != nil {
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return err
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}
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log.Debugf("send route multicast:\n%s", svc.GetRoutes())
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return nil
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}
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