add spdx

Author: T-recks

scapy/contrib/dtn/bpv7.py

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of Scapy
+# See https://scapy.net/ for more information
+
 # scapy.contrib.description = Bundle Protocol version 7 (BPv7)
 # scapy.contrib.status = loads
 

scapy/contrib/dtn/cbor.py

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of Scapy
+# See https://scapy.net/ for more information
+
 # scapy.contrib.description = Concise Binary Object Representation (CBOR)
 # scapy.contrib.status = library
 

scapy/contrib/dtn/common.py

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of Scapy
+# See https://scapy.net/ for more information
+
 # scapy.contrib.description = utility functions and classes for DTN module
 # scapy.contrib.status = library
 

scapy/contrib/dtn/tcpcl.py

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of Scapy
+# See https://scapy.net/ for more information
+
 # scapy.contrib.description = TCP Convergence Layer version 4 (TCPCLv4)
 # scapy.contrib.status = loads
 

scapy/contrib/dtn/tcpcl_session.py

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of Scapy
+# See https://scapy.net/ for more information
+
 # scapy.contrib.description = TCP Convergence Layer version 4 (TCPCLv4)
 # scapy.contrib.status = loads