58 lines
1.5 KiB
Go
58 lines
1.5 KiB
Go
package service
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import (
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"fmt"
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omd "git.loafle.net/overflow/model/discovery"
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omm "git.loafle.net/overflow/model/meta"
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omu "git.loafle.net/overflow/model/util"
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osm "git.loafle.net/overflow/service_matcher-go"
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ouej "git.loafle.net/overflow/util-go/encoding/json"
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"git.loafle.net/overflow_scanner/probe/discovery/session"
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"git.loafle.net/overflow_scanner/probe/internal/matcher"
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)
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func scanUDP(discoverySession session.DiscoverySession, targetPort *omd.Port) error {
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portNumber, err := ouej.NumberToInt(targetPort.PortNumber)
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if err != nil {
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return fmt.Errorf("Service scan port[%s] error %v ", targetPort.PortNumber, err)
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}
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matchers := matcher.GetUDPMatchers()
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matchCtx := osm.NewMatchCtx(targetPort.Host.Address, portNumber)
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for _, _matcher := range matchers {
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p := osm.NewPacket(targetPort.UDPLayer.LayerPayload(), len(targetPort.UDPLayer.LayerPayload()))
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if err := _matcher.Match(matchCtx, 0, p); err == nil {
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s := omd.NewService(
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targetPort,
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omm.ToMetaCryptoType(omm.MetaCryptoTypeEnumNONE),
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_matcher.Key(),
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)
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s.Name = _matcher.Name(matchCtx)
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s.ServiceType = _matcher.Type()
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s.ServiceVendor = _matcher.Vendor(matchCtx)
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s.ServiceVersion = _matcher.Version(matchCtx)
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s.DiscoveredDate = omu.NowPtr()
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discoverySession.AddService(
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omm.ToMetaDiscovererType(omm.MetaDiscovererTypeEnumUDPMatcher),
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s,
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matchCtx.GetAttributes(),
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)
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return nil
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}
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select {
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case <-discoverySession.StopChan():
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return nil
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default:
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}
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}
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return nil
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}
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