soypat/lneto
1
0
Fork 0
mirror of https://github.com/soypat/lneto.git synced 2026-08-20 14:39:02 +00:00
Code Issues Packages Projects Releases 1 Wiki Activity

add pcap formatting

Browse Source
This commit is contained in:
Patricio Whittingslow
2025-12-31 02:17:44 -03:00
parent 8307403c5c
commit 5f0edf62a9
2 changed files with 163 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/tap/main.go
+11 -9
View File
@@ -63,22 +63,24 @@ func run() error {
}
defer sv.Close()
var cap pcap.PacketBreakdown
pf := pcap.Formatter{
FilterClasses: []pcap.FieldClass{pcap.FieldClassDst, pcap.FieldClassSrc, pcap.FieldClassSize, pcap.FieldClassFlags},
}
var pfbuf []byte
sv.OnTransfer(func(channel int, pkt []byte) {
captime := time.Now()
frames, err := cap.CaptureEthernet(nil, pkt, 0)
if err == nil {
flags, src, dst := getTCPData(frames, pkt)
if src != 0 {
if flags != 0 {
fmt.Println(channel, captime.Format("15:04:05.000"), frames, flags.String(), src, "->", dst)
} else {
fmt.Println(channel, captime.Format("15:04:05.000"), frames, src, "->", dst)
}
pfbuf = append(pfbuf[:0], '[')
pfbuf, err = pf.FormatFrames(pfbuf, frames, pkt)
pfbuf = append(pfbuf, ']')
if err != nil {
fmt.Printf("%d %s !err:%s\n", channel, captime.Format("15:04:05.000"), err)
} else {
fmt.Println(channel, captime.Format("15:04:05.000"), frames)
fmt.Printf("%d %s %s\n", channel, captime.Format("15:04:05.000"), pfbuf)
}
} else {
fmt.Println(channel, captime.Format("15:04:05.000"), "ERR", frames, err.Error())
fmt.Println(channel, captime.Format("15:04:05.000"), "cap ERR", frames, err.Error())
}
})
hwaddr, err := sv.HardwareAddress6()