overflow_discovery/discovery/ipv4/service_udp.go
crusader 9527a68c71 ing
2017-12-04 18:37:39 +09:00

38 lines
1004 B
Go

package ipv4
import (
"fmt"
cnsm "git.loafle.net/commons_go/network_service_matcher"
cuej "git.loafle.net/commons_go/util/encoding/json"
discoveryM "git.loafle.net/overflow/overflow_commons_go/modules/discovery/model"
"git.loafle.net/overflow/overflow_discovery/matcher"
)
func scanServiceUDP(port *discoveryM.Port, ds *discoveryM.DiscoveryService, resultChan chan interface{}, errChan chan error, stopChan chan struct{}) bool {
portNumber, err := cuej.NumberToInt(port.PortNumber)
if err != nil {
errChan <- fmt.Errorf("Discovery: Service scan port[%s] error %v ", port.PortNumber, err)
return false
}
ms := matcher.GetUDPMatchers()
mi := cnsm.NewMatchInfo(port.Host.IP, portNumber)
for i := 0; i < len(ms); i++ {
m := ms[i]
p := cnsm.NewPacket(port.UDPLayer.LayerPayload(), len(port.UDPLayer.LayerPayload()))
if m.Match(mi, 0, p) {
s := &discoveryM.Service{
ServiceName: m.ServiceName(),
}
s.Port = port
resultChan <- s
return true
}
}
return false
}