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8a76ed7d99
@ -1,7 +1,5 @@
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# pancap
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<img alt="pancap logo" src="pancap.png" width="250px" height="250px">
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## Idea
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If you get access to a [PCAP](https://en.wikipedia.org/wiki/Pcap) file, for example during a CTF or captured on your own, you usually have the problem of overlooking all the relevant information to get a basic idea of the capture file. This gets worse if the capture file includes lots of white noise or irrelevant traffic - often included in the capture file to cloak *interesting* packets in a bunch of packets to YouTube, Reddit, Twitter and others.
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@ -12,7 +10,7 @@ If you get access to a [PCAP](https://en.wikipedia.org/wiki/Pcap) file, for exam
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Simply run
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`go get github.com/maride/pancap`
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`go get git.darknebu.la/maride/pancap`
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This will also build `pancap` and place it into your `GOBIN` directory - means you can directly execute it!
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@ -2,8 +2,8 @@ package analyze
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import (
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"fmt"
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"github.com/maride/pancap/output"
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"github.com/maride/pancap/protocol"
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"git.darknebu.la/maride/pancap/output"
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"git.darknebu.la/maride/pancap/protocol"
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"github.com/google/gopacket"
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"log"
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)
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42
analyzer_test.go
Normal file
42
analyzer_test.go
Normal file
@ -0,0 +1,42 @@
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package main
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import (
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"github.com/google/gopacket"
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"github.com/google/gopacket/layers"
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"testing"
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)
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func Test_analyzePCAP(t *testing.T) {
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type args struct {
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source *gopacket.PacketSource
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linkType layers.LinkType
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}
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tests := []struct {
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name string
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args args
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wantErr bool
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}{
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{
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name: "Faulty link type",
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args: args{
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source: &gopacket.PacketSource{
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DecodeOptions: gopacket.DecodeOptions{
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Lazy: false,
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NoCopy: false,
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SkipDecodeRecovery: false,
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DecodeStreamsAsDatagrams: false,
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},
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},
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linkType: 2,
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},
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wantErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if err := analyzePCAP(tt.args.source, tt.args.linkType); (err != nil) != tt.wantErr {
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t.Errorf("analyzePCAP() error = %v, wantErr %v", err, tt.wantErr)
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}
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})
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}
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}
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2
go.mod
2
go.mod
@ -1,4 +1,4 @@
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module github.com/maride/pancap
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module git.darknebu.la/maride/pancap
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go 1.13
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6
main.go
6
main.go
@ -3,8 +3,8 @@ package main
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import (
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"flag"
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"fmt"
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"github.com/maride/pancap/analyze"
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"github.com/maride/pancap/output"
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"git.darknebu.la/maride/pancap/analyze"
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"git.darknebu.la/maride/pancap/output"
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"log"
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"math/rand"
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"time"
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@ -53,7 +53,7 @@ func printMOTD() {
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"PanCAP: Analyzer for pancake files",
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"You want some syrup with these packets?",
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"Check out CONTRIBUTORS.md!",
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"Push your commits to github.com/maride/pancap",
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"Push your commits to git.darknebu.la/maride/pancap",
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"Don't let the white noise traffic confuse you.",
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"Grab a Club Mate if you don't have one yet.",
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"In Soviet Russia, traffic analyzes you.",
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@ -2,12 +2,11 @@ package output
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import (
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"fmt"
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"git.darknebu.la/maride/pancap/common"
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"io/ioutil"
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"log"
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"os"
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"strings"
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"github.com/maride/pancap/common"
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)
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var (
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@ -21,18 +20,12 @@ var (
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// This means that a module should _always_ call this function when a file is encountered.
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// origin is a descriptive string where the file comes from, e.g. the module name.
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func RegisterFile(filename string, content []byte, origin string) {
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// Check if there even is anything to register
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if len(content) == 0 {
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// File is empty, won't register the void
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log.Printf("Avoided registering file from %s because it is empty.", origin)
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return
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}
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thisFile := NewFile(filename, content, origin)
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// To avoid doubles, we need to check if that hash is already present
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for _, f := range registeredFiles {
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if f.hash == thisFile.hash {
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// Found - stop here
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log.Printf("Avoided registering file from %s because it has the same content as an already registered file ", origin)
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log.Printf("Avoided registering file '%s' because it has the same content as an already registered file ", f.name)
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return
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}
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}
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BIN
pancap.png
BIN
pancap.png
Binary file not shown.
Before Width: | Height: | Size: 434 KiB |
@ -2,8 +2,8 @@ package arp
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import (
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"fmt"
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"github.com/maride/pancap/common"
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"github.com/maride/pancap/output"
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"git.darknebu.la/maride/pancap/common"
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"git.darknebu.la/maride/pancap/output"
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"github.com/google/gopacket"
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"github.com/google/gopacket/layers"
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"log"
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@ -1,7 +1,7 @@
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package dhcpv4
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import (
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"github.com/maride/pancap/output"
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"git.darknebu.la/maride/pancap/output"
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"github.com/google/gopacket"
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"github.com/google/gopacket/layers"
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)
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@ -2,7 +2,7 @@ package dhcpv4
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import (
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"fmt"
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"github.com/maride/pancap/common"
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"git.darknebu.la/maride/pancap/common"
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"github.com/google/gopacket/layers"
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"log"
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)
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@ -2,7 +2,7 @@ package dhcpv4
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import (
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"fmt"
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"github.com/maride/pancap/common"
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"git.darknebu.la/maride/pancap/common"
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"github.com/google/gopacket/layers"
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)
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@ -2,7 +2,7 @@ package dhcpv4
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import (
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"fmt"
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"github.com/maride/pancap/common"
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"git.darknebu.la/maride/pancap/common"
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"github.com/google/gopacket/layers"
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"log"
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)
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@ -2,7 +2,7 @@ package dns
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import (
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"fmt"
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"github.com/maride/pancap/common"
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"git.darknebu.la/maride/pancap/common"
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"github.com/google/gopacket/layers"
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"golang.org/x/net/publicsuffix"
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"log"
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package dns
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import (
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"github.com/maride/pancap/output"
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"git.darknebu.la/maride/pancap/output"
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"github.com/google/gopacket"
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"github.com/google/gopacket/layers"
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)
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@ -2,7 +2,7 @@ package dns
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import (
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"fmt"
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"github.com/maride/pancap/common"
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"git.darknebu.la/maride/pancap/common"
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"github.com/google/gopacket/layers"
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"golang.org/x/net/publicsuffix"
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"log"
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package http
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import (
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"github.com/maride/pancap/common"
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"github.com/maride/pancap/output"
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"git.darknebu.la/maride/pancap/common"
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"git.darknebu.la/maride/pancap/output"
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"github.com/google/gopacket"
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"github.com/google/gopacket/layers"
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"github.com/google/gopacket/tcpassembly"
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import (
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"bufio"
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"fmt"
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"github.com/maride/pancap/output"
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"git.darknebu.la/maride/pancap/output"
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"github.com/google/gopacket"
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"github.com/google/gopacket/tcpassembly"
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"github.com/google/gopacket/tcpassembly/tcpreader"
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package protocol
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import (
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"github.com/maride/pancap/protocol/arp"
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"github.com/maride/pancap/protocol/dhcpv4"
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"github.com/maride/pancap/protocol/dns"
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"github.com/maride/pancap/protocol/http"
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"git.darknebu.la/maride/pancap/protocol/arp"
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"git.darknebu.la/maride/pancap/protocol/dhcpv4"
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"git.darknebu.la/maride/pancap/protocol/dns"
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"git.darknebu.la/maride/pancap/protocol/http"
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)
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var (
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