25 lines
632 B
Go
25 lines
632 B
Go
package atalk
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import (
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"fmt"
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"github.com/google/gopacket/pcap"
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"github.com/sfiera/multitalk/pkg/ethernet"
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)
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var MulticastDst = ethernet.Addr{0x09, 0x00, 0x07, 0xff, 0xff, 0xff}
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// StartPcap opens an AppleTalk and AARP listening session on a network device.
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func StartPcap(device string) (*pcap.Handle, error) {
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handle, err := pcap.OpenLive(device, 4096, true, pcap.BlockForever)
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if err != nil {
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return nil, fmt.Errorf("opening device %q: %w", device, err)
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}
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if err := handle.SetBPFFilter("atalk or aarp"); err != nil {
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handle.Close()
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return nil, fmt.Errorf("setting BPF filter: %w", err)
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}
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return handle, nil
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}
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