From 8df2de18988c7922bba8a6588e7d9d9a9f2eeeb2 Mon Sep 17 00:00:00 2001
From: shadowy-pycoder <shadowy-pycoder@example.com>
Date: Wed, 18 Sep 2024 09:18:16 +0300
Subject: [PATCH] Updated `README.md` with roadmap
---
README.md | 6 ++++++
layers/layers.go | 21 ---------------------
layers/tcp.go | 21 +++++++++++++++++++++
3 files changed, 27 insertions(+), 21 deletions(-)
diff --git a/README.md b/README.md
index 8061c60..e959012 100644
--- a/README.md
+++ b/README.md
@@ -96,3 +96,9 @@ With `-v` flag enabled, you will see more detailed information:
- [TLS](https://en.wikipedia.org/wiki/Transport_Layer_Security)
+## Roadmap
+
+- [x] Online packet capture to `stdout`, `txt`, `pcap` and `pcapng` files
+- [ ] Offline packet capture from `pcap` and `pcapng` files
+- [ ] Add proper parsing for `SNMP` messages
+- [ ] Add packet generation and packet injection functionality
diff --git a/layers/layers.go b/layers/layers.go
index b1aa117..1cc1c53 100644
--- a/layers/layers.go
+++ b/layers/layers.go
@@ -43,27 +43,6 @@ type Layer interface {
Summary() string
}
-func nextAppLayer(src, dst uint16) string {
- var layer string
- switch {
- case src == 20 || dst == 20 || src == 21 || dst == 21:
- layer = "FTP"
- case src == 22 || dst == 22:
- layer = "SSH"
- case src == 53 || dst == 53:
- layer = "DNS"
- case src == 80 || dst == 80:
- layer = "HTTP"
- case src == 161 || dst == 161 || src == 162 || dst == 162:
- layer = "SNMP"
- case src == 443 || dst == 443:
- layer = "TLS"
- default:
- layer = ""
- }
- return layer
-}
-
func bytesToStr(b []byte) string {
return unsafe.String(unsafe.SliceData(b), len(b))
}
diff --git a/layers/tcp.go b/layers/tcp.go
index a3d7387..790c814 100644
--- a/layers/tcp.go
+++ b/layers/tcp.go
@@ -130,3 +130,24 @@ func (t *TCPSegment) Parse(data []byte) error {
func (t *TCPSegment) NextLayer() (string, []byte) {
return nextAppLayer(t.SrcPort, t.DstPort), t.payload
}
+
+func nextAppLayer(src, dst uint16) string {
+ var layer string
+ switch {
+ case src == 20 || dst == 20 || src == 21 || dst == 21:
+ layer = "FTP"
+ case src == 22 || dst == 22:
+ layer = "SSH"
+ case src == 53 || dst == 53:
+ layer = "DNS"
+ case src == 80 || dst == 80:
+ layer = "HTTP"
+ case src == 161 || dst == 161 || src == 162 || dst == 162:
+ layer = "SNMP"
+ case src == 443 || dst == 443:
+ layer = "TLS"
+ default:
+ layer = ""
+ }
+ return layer
+}