From 1d970e68085cf4e747acdfa47207bca65dc600b9 Mon Sep 17 00:00:00 2001
From: shadowy-pycoder <shadowy-pycoder@example.com>
Date: Wed, 18 Sep 2024 08:45:48 +0300
Subject: [PATCH 1/3] Updated `README.md` with supported layers

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index bf81be6..8061c60 100644
--- a/README.md
+++ b/README.md
@@ -77,3 +77,22 @@ With `-v` flag enabled, you will see more detailed information:
 
 ![Screenshot from 2024-09-17 09-56-20](https://github.com/user-attachments/assets/11539ea7-779e-4faf-8fce-2eea9ab653c7)
 ![Screenshot from 2024-09-17 09-56-47](https://github.com/user-attachments/assets/26b6353d-d312-40c5-9917-3f2f7bb8abdc)
+
+## Supported layers
+
+- [Ethernet](https://en.wikipedia.org/wiki/Ethernet_frame) 
+- [IPv4](https://en.wikipedia.org/wiki/IPv4)
+- [IPv6](https://en.wikipedia.org/wiki/IPv6)
+- [ARP](https://en.wikipedia.org/wiki/Address_Resolution_Protocol)
+- [ICMP](https://en.wikipedia.org/wiki/Internet_Control_Message_Protocol)
+- [ICMPv6](https://en.wikipedia.org/wiki/Internet_Control_Message_Protocol_for_IPv6)
+- [TCP](https://en.wikipedia.org/wiki/Transmission_Control_Protocol)
+- [UDP](https://en.wikipedia.org/wiki/User_Datagram_Protocol)
+- [DNS](https://en.wikipedia.org/wiki/Domain_Name_System)
+- [HTTP](https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol)
+- [SNMP](https://en.wikipedia.org/wiki/Simple_Network_Management_Protocol)
+- [FTP](https://en.wikipedia.org/wiki/File_Transfer_Protocol)
+- [SSH](https://en.wikipedia.org/wiki/Secure_Shell)
+- [TLS](https://en.wikipedia.org/wiki/Transport_Layer_Security)
+
+

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 2/3] 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
+}

From 3539d0b107d2255fa16c1c8813064e2731be5d79 Mon Sep 17 00:00:00 2001
From: shadowy-pycoder <35629483+shadowy-pycoder@users.noreply.github.com>
Date: Wed, 18 Sep 2024 09:46:35 +0300
Subject: [PATCH 3/3] Update README.md with logo

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index e959012..a51be06 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
+![mshark_new](https://github.com/user-attachments/assets/ee1b9526-dcae-4ff8-962d-315897e49ed0)
 # mShark - Mini [Wireshark](https://www.wireshark.org/) written in Go