Switch to scapy with python 3.

24 files changed, 263 insertions, 263 deletions

diff --git a/regress/sys/netinet/frag/LICENSE b/regress/sys/netinet/frag/LICENSE
index 8132b495a44..866739d7ee3 100644
--- a/regress/sys/netinet/frag/LICENSE
+++ b/regress/sys/netinet/frag/LICENSE
@@ -1,13 +1,13 @@
-# Copyright (c) 2012-2017 Alexander Bluhm <bluhm@openbsd.org>
-#
-# Permission to use, copy, modify, and distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+Copyright (c) 2012-2020 Alexander Bluhm <bluhm@openbsd.org>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/regress/sys/netinet/frag/Makefile b/regress/sys/netinet/frag/Makefile
index 27dfc8c119a..ba046da1758 100644
--- a/regress/sys/netinet/frag/Makefile
+++ b/regress/sys/netinet/frag/Makefile
@@ -1,15 +1,14 @@
-#	$OpenBSD: Makefile,v 1.7 2020/12/17 00:51:13 bluhm Exp $
+#	$OpenBSD: Makefile,v 1.8 2020/12/25 18:25:43 bluhm Exp $
 
 # The following ports must be installed:
 #
-# python-2.7          interpreted object-oriented programming language
 # scapy               powerful interactive packet manipulation in python
 
-.if ! exists(/usr/local/bin/python2.7) || ! exists(/usr/local/bin/scapy)
+.if ! exists(/usr/local/bin/scapy-3)
 .BEGIN:
 	@true
 regress:
-	@echo Install python and the scapy module for additional tests.
+	@echo Install py3-scapy package to run this regress.
 	@echo SKIPPED
 .endif
 
@@ -47,10 +46,10 @@ regress:
 
 .if make (regress) || make (all)
 .BEGIN:
-	@echo
 	${SUDO} true
 	ssh -t ${REMOTE_SSH} ${SUDO} true
 	rm -f stamp-stack stamp-pf
+	@echo
 .endif
 
 # Create python include file containing the addresses.
@@ -67,9 +66,9 @@ addr.py: Makefile
 # Set variables so that make runs with and without obj directory.
 # Only do that if necessary to keep visible output short.
 .if ${.CURDIR} == ${.OBJDIR}
-PYTHON =	python2.7 -u ./
+PYTHON =	python3 -u ./
 .else
-PYTHON =	PYTHONPATH=${.OBJDIR} python2.7 -u ${.CURDIR}/
+PYTHON =	PYTHONPATH=${.OBJDIR} python3 -u ${.CURDIR}/
 .endif
 
 stamp-stack:
diff --git a/regress/sys/netinet/frag/frag.py b/regress/sys/netinet/frag/frag.py
index 17febd8f63e..8d12a8737ec 100644
--- a/regress/sys/netinet/frag/frag.py
+++ b/regress/sys/netinet/frag/frag.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "non-overlapping ping fragments"
+print("non-overlapping ping fragments")
 
 # |--------|
 #          |----|
@@ -11,15 +11,15 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -37,15 +37,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_maxlen.py b/regress/sys/netinet/frag/frag_maxlen.py
index 1e727e29684..7fa8d34be2c 100644
--- a/regress/sys/netinet/frag/frag_maxlen.py
+++ b/regress/sys/netinet/frag/frag_maxlen.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "fully fragmented maximum size ping packet, sent in random order"
+print("fully fragmented maximum size ping packet, sent in random order")
 
 #          |----|
 #                                        |----|
@@ -17,17 +17,18 @@ pid=os.getpid()
 eid=pid & 0xffff
 iplen=2**16
 size=424
-payload="ABCDEFGHIJKLMNOP" * (iplen / 16)
+payload=b"ABCDEFGHIJKLMNOP" * int(iplen / 16)
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
-    ICMP(type='echo-request', id=eid)/str(payload)[0:iplen-20-8-1]
+    ICMP(type='echo-request', id=eid)/bytes(payload)[0:iplen-20-8-1]
 frag=[]
 fid=pid & 0xffff
-max=(iplen-20)/size
+max=int((iplen-20)/size)
 for i in range(max):
 	frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-	    frag=i*(size/8), flags='MF')/str(packet)[20+i*size:20+(i+1)*size])
+	    frag=i*int(size/8), flags='MF')/
+	    bytes(packet)[20+i*size:20+(i+1)*size])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=max*(size/8))/str(packet)[20+max*size:])
+    frag=max*int(size/8))/bytes(packet)[20+max*size:])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -53,10 +54,10 @@ for a in ans:
 	    a.payload.proto == 1 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		exit(0)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(1)
diff --git a/regress/sys/netinet/frag/frag_mf0long.py b/regress/sys/netinet/frag/frag_mf0long.py
index c3a3b3782b0..4d16574601d 100644
--- a/regress/sys/netinet/frag/frag_mf0long.py
+++ b/regress/sys/netinet/frag/frag_mf0long.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment that overlaps longer than the last fragment without MF"
+print("ping fragment that overlaps longer than the last fragment without MF")
 
 #      |---------|
 #                |XXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1)/str(packet)[28:44])
+    frag=1)/bytes(packet)[28:44])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=3)/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:28])
+    flags='MF')/bytes(packet)[20:28])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_mf0middle.py b/regress/sys/netinet/frag/frag_mf0middle.py
index e8cf64fc755..f92c9b62476 100644
--- a/regress/sys/netinet/frag/frag_mf0middle.py
+++ b/regress/sys/netinet/frag/frag_mf0middle.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment without MF that overlaps the first fragment"
+print("ping fragment without MF that overlaps the first fragment")
 
 # |---------|
 #      |XXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=1)/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_mf0short.py b/regress/sys/netinet/frag/frag_mf0short.py
index b072d596009..870afdf727d 100644
--- a/regress/sys/netinet/frag/frag_mf0short.py
+++ b/regress/sys/netinet/frag/frag_mf0short.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment without MF that overlaps the last fragment at beginning"
+print("ping fragment without MF that overlaps the last fragment at beginning")
 
 #           |---------|
 #      |XXXXXXXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOPQRSTUVWX"
-dummy="0123456701234567"
+payload=b"ABCDEFGHIJKLMNOPQRSTUVWX"
+dummy=b"0123456701234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:52])
+    frag=2)/bytes(packet)[36:52])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=1)/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_mf1end.py b/regress/sys/netinet/frag/frag_mf1end.py
index 27713bba740..1da1944db19 100644
--- a/regress/sys/netinet/frag/frag_mf1end.py
+++ b/regress/sys/netinet/frag/frag_mf1end.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment with MF that overlaps fragment without MF at the end"
+print("ping fragment with MF that overlaps fragment without MF at the end")
 
 #           |----|
 #      |XXXXXXXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="0123456701234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"0123456701234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=1, flags='MF')/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_opt.py b/regress/sys/netinet/frag/frag_opt.py
index 877b57f3bf2..0cc645ce211 100644
--- a/regress/sys/netinet/frag/frag_opt.py
+++ b/regress/sys/netinet/frag/frag_opt.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragments with IP option"
+print("ping fragments with IP option")
 
 # OO|--------|
 #          OO|----|
@@ -11,15 +11,15 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF', options=IPOption_NOP())/str(packet)[20:36])
+    flags='MF', options=IPOption_NOP())/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2, options=IPOption_NOP())/str(packet)[36:44])
+    frag=2, options=IPOption_NOP())/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -37,15 +37,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_overhead.py b/regress/sys/netinet/frag/frag_overhead.py
index 43cb8c1b7c5..67b0d79dd0f 100644
--- a/regress/sys/netinet/frag/frag_overhead.py
+++ b/regress/sys/netinet/frag/frag_overhead.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment that overlaps the second fragment with its head"
+print("ping fragment that overlaps the second fragment with its head")
 
 # |----|
 #      |----|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:28])
+    flags='MF')/bytes(packet)[20:28])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1, flags='MF')/str(packet)[28:36])
+    frag=1, flags='MF')/bytes(packet)[28:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1)/(dummy+str(packet)[36:44]))
+    frag=1)/(dummy+bytes(packet)[36:44]))
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_overhead0.py b/regress/sys/netinet/frag/frag_overhead0.py
index 0a1f64721d7..db135f34977 100644
--- a/regress/sys/netinet/frag/frag_overhead0.py
+++ b/regress/sys/netinet/frag/frag_overhead0.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment that overlaps the first fragment with its head"
+print("ping fragment that overlaps the first fragment with its head")
 
 # |---------|
 #      |XXXX-----|
@@ -11,16 +11,16 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1)/(dummy+str(packet)[36:44]))
+    frag=1)/(dummy+bytes(packet)[36:44]))
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -38,15 +38,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_overhead1.py b/regress/sys/netinet/frag/frag_overhead1.py
index d7ab1f17884..e2edf293a7e 100644
--- a/regress/sys/netinet/frag/frag_overhead1.py
+++ b/regress/sys/netinet/frag/frag_overhead1.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment head that overlaps the first fragment completely"
+print("ping fragment head that overlaps the first fragment completely")
 
 # |---------|
 #      |XXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=1, flags='MF')/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_overtail.py b/regress/sys/netinet/frag/frag_overtail.py
index 1052aa32e38..236fdf5d970 100644
--- a/regress/sys/netinet/frag/frag_overtail.py
+++ b/regress/sys/netinet/frag/frag_overtail.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment that overlaps the second fragment with its tail"
+print("ping fragment that overlaps the second fragment with its tail")
 
 #           |----|
 #      |XXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=1, flags='MF')/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_overtail0.py b/regress/sys/netinet/frag/frag_overtail0.py
index 4c828b43b8a..e917fbee08c 100644
--- a/regress/sys/netinet/frag/frag_overtail0.py
+++ b/regress/sys/netinet/frag/frag_overtail0.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment that overlaps the first fragment with its tail"
+print("ping fragment that overlaps the first fragment with its tail")
 
 #      |XXXX-----|
 # |---------|
@@ -11,16 +11,16 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1)/(dummy+str(packet)[36:44]))
+    frag=1)/(dummy+bytes(packet)[36:44]))
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -38,15 +38,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_overtail1.py b/regress/sys/netinet/frag/frag_overtail1.py
index 8f37e350ca4..b0a25dc4bf5 100644
--- a/regress/sys/netinet/frag/frag_overtail1.py
+++ b/regress/sys/netinet/frag/frag_overtail1.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment tail that overlaps the first fragment completely"
+print("ping fragment tail that overlaps the first fragment completely")
 
 #      |---------|
 #      |XXXX|
@@ -12,18 +12,18 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-dummy="01234567"
+payload=b"ABCDEFGHIJKLMNOP"
+dummy=b"01234567"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1)/str(packet)[28:44])
+    frag=1)/bytes(packet)[28:44])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     frag=1, flags='MF')/dummy)
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:28])
+    flags='MF')/bytes(packet)[20:28])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -41,15 +41,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_padding.py b/regress/sys/netinet/frag/frag_padding.py
index f6117ff7afb..1226b7e6475 100644
--- a/regress/sys/netinet/frag/frag_padding.py
+++ b/regress/sys/netinet/frag/frag_padding.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "non-overlapping ping fragments with ethernet padding"
+print("non-overlapping ping fragments with ethernet padding")
 
 # |--------|XX|
 #          |----|XX|
@@ -11,19 +11,19 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
-padding="0123"
+payload=b"ABCDEFGHIJKLMNOP"
+padding=b"0123"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
-	pkt=str(f) + padding
+	pkt=bytes(f) + padding
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC, type=0x0800)/pkt)
 
 if os.fork() == 0:
@@ -39,15 +39,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_permute.py b/regress/sys/netinet/frag/frag_permute.py
index d3a1cc02efc..45c6f1f7c44 100644
--- a/regress/sys/netinet/frag/frag_permute.py
+++ b/regress/sys/netinet/frag/frag_permute.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "send 3 non-overlapping ping fragments in all possible orders"
+print("send 3 non-overlapping ping fragments in all possible orders")
 
 # |----|
 #      |----|
@@ -19,7 +19,7 @@ permute.append([1,2,0])
 permute.append([2,1,0])
 
 pid=os.getpid()
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 for p in permute:
 	pid += 1
 	eid=pid & 0xffff
@@ -28,11 +28,11 @@ for p in permute:
 	frag=[]
 	fid=pid & 0xffff
 	frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-	    flags='MF')/str(packet)[20:28])
+	    flags='MF')/bytes(packet)[20:28])
 	frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-	    frag=1, flags='MF')/str(packet)[28:36])
+	    frag=1, flags='MF')/bytes(packet)[28:36])
 	frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-	    frag=2)/str(packet)[36:48])
+	    frag=2)/bytes(packet)[36:48])
 	eth=[]
 	for i in range(3):
 		eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/frag[p[i]])
@@ -50,16 +50,16 @@ for p in permute:
 		    a.payload.frag == 0 and a.payload.flags == 0 and \
 		    icmptypes[a.payload.payload.type] == 'echo-reply':
 			id=a.payload.payload.id
-			print "id=%#x" % (id)
+			print("id=%#x" % (id))
 			if id != eid:
-				print "WRONG ECHO REPLY ID"
+				print("WRONG ECHO REPLY ID")
 				exit(2)
 			data=a.payload.payload.payload.load
-			print "payload=%s" % (data)
+			print("payload=%s" % (data))
 			if data == payload:
 				break
-			print "PAYLOAD!=%s" % (payload)
+			print("PAYLOAD!=%s" % (payload))
 			exit(1)
 	else:
-		print "NO ECHO REPLY"
+		print("NO ECHO REPLY")
 		exit(2)
diff --git a/regress/sys/netinet/frag/frag_queuelimit.py b/regress/sys/netinet/frag/frag_queuelimit.py
index 2edf4b6d3cf..0e89a1ae79e 100644
--- a/regress/sys/netinet/frag/frag_queuelimit.py
+++ b/regress/sys/netinet/frag/frag_queuelimit.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "drop too long fragment queue, reassemble less fragments"
+print("drop too long fragment queue, reassemble less fragments")
 
 # |----|
 #      |----|
@@ -14,7 +14,7 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP" * 70
+payload=b"ABCDEFGHIJKLMNOP" * 70
 frag=[]
 fid=pid & 0xffff
 # send packets with 65 and 64 fragments
@@ -25,9 +25,9 @@ for max in (64, 63):
 	fid = ~fid & 0xffff
 	for i in range(max):
 		frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-		    frag=i, flags='MF')/str(packet)[20+i*8:20+(i+1)*8])
+		    frag=i, flags='MF')/bytes(packet)[20+i*8:20+(i+1)*8])
 	frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-	    frag=max)/str(packet)[20+max*8:])
+	    frag=max)/bytes(packet)[20+max*8:])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -52,20 +52,20 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id == ~eid & 0xffff:
-			print "ECHO REPLY FROM 65 FRAGMENTS"
+			print("ECHO REPLY FROM 65 FRAGMENTS")
 			exit(1)
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data != payload:
-			print "PAYLOAD!=%s" % (payload)
+			print("PAYLOAD!=%s" % (payload))
 			exit(2)
 		reply=True
 if not reply:
-	print "NO ECHO REPLY FROM 64 FRAGMENTS"
+	print("NO ECHO REPLY FROM 64 FRAGMENTS")
 	exit(1)
 exit(0)
diff --git a/regress/sys/netinet/frag/frag_refrag.py b/regress/sys/netinet/frag/frag_refrag.py
index 9ac27897f8e..0171d9e98ef 100644
--- a/regress/sys/netinet/frag/frag_refrag.py
+++ b/regress/sys/netinet/frag/frag_refrag.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "fragments of a large packet that has to be refragmented by reflector"
+print("fragments of a large packet that has to be refragmented by reflector")
 
 # |--------|
 #          |------------------|
@@ -14,24 +14,24 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload=100 * "ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP" * 100
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
-request_cksum=ICMP(str(packet.payload)).chksum
-print "request cksum=%#x" % (request_cksum)
+request_cksum=ICMP(bytes(packet.payload)).chksum
+print("request cksum=%#x" % (request_cksum))
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid, flags='MF')/
-    str(packet)[20:36])
+    bytes(packet)[20:36])
 offset=2
 chunk=4
 while 40+8*(offset+chunk) < len(payload):
 	frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
 	    frag=offset, flags='MF')/
-	    str(packet)[20+(8*offset):20+8*(offset+chunk)])
+	    bytes(packet)[20+(8*offset):20+8*(offset+chunk)])
 	offset+=chunk
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-	frag=offset)/str(packet)[20+(8*offset):])
+	frag=offset)/bytes(packet)[20+(8*offset):])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -49,17 +49,17 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 1 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		reply_cksum=a.payload.payload.chksum
-		print "reply cksum=%#x" % (reply_cksum)
+		print("reply cksum=%#x" % (reply_cksum))
 		# change request checksum incrementaly and check with reply
 		diff_cksum=~(~reply_cksum+~(~request_cksum+~0x0800+0x0000))
 		if diff_cksum & 0xffff != 0xffff and diff_cksum & 0xffff != 0:
-			print "CHECKSUM ERROR diff cksum=%#x" % (diff_cksum)
+			print("CHECKSUM ERROR diff cksum=%#x" % (diff_cksum))
 			exit(1)
 		exit(0)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_timeout.py b/regress/sys/netinet/frag/frag_timeout.py
index e33af304cc0..0487adfcc98 100644
--- a/regress/sys/netinet/frag/frag_timeout.py
+++ b/regress/sys/netinet/frag/frag_timeout.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "6 non-overlapping ping fragments in 75 seconds, timeout is 60"
+print("6 non-overlapping ping fragments in 75 seconds, timeout is 60")
 
 # |----|
 #      |----|
@@ -15,23 +15,23 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcd"
+payload=b"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcd"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:28])
+    flags='MF')/bytes(packet)[20:28])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=1, flags='MF')/str(packet)[28:36])
+    frag=1, flags='MF')/bytes(packet)[28:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2, flags='MF')/str(packet)[36:44])
+    frag=2, flags='MF')/bytes(packet)[36:44])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=3, flags='MF')/str(packet)[44:52])
+    frag=3, flags='MF')/bytes(packet)[44:52])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=4, flags='MF')/str(packet)[52:60])
+    frag=4, flags='MF')/bytes(packet)[52:60])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=5)/str(packet)[60:68])
+    frag=5)/bytes(packet)[60:68])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -51,16 +51,16 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
-			print "ECHO REPLY"
+			print("ECHO REPLY")
 			exit(1)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "no echo reply"
+print("no echo reply")
 exit(0)
diff --git a/regress/sys/netinet/frag/frag_udpheader.py b/regress/sys/netinet/frag/frag_udpheader.py
index f187b1f92ab..9c173fe07f5 100644
--- a/regress/sys/netinet/frag/frag_udpheader.py
+++ b/regress/sys/netinet/frag/frag_udpheader.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "udp fragments splitted after udp header"
+print("udp fragments splitted after udp header")
 
 # |----|
 #      |--------|
@@ -14,15 +14,15 @@ uport=pid & 0xffff
 # inetd ignores UDP packets from privileged port or nfs
 if uport < 1024 or uport == 2049:
 	uport+=1024
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     UDP(sport=uport, dport=7)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=17, id=fid,
-    flags='MF')/str(packet)[20:28])
+    flags='MF')/bytes(packet)[20:28])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=17, id=fid,
-    frag=1)/str(packet)[28:44])
+    frag=1)/bytes(packet)[28:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -40,15 +40,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    a.payload.payload.sport == 7:
 		port=a.payload.payload.dport
-		print "port=%d" % (port)
+		print("port=%d" % (port))
 		if port != uport:
-			print "WRONG UDP ECHO REPLY PORT"
+			print("WRONG UDP ECHO REPLY PORT")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO UDP ECHO REPLY"
+print("NO UDP ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_udppayload.py b/regress/sys/netinet/frag/frag_udppayload.py
index 97cc4eb3427..e91a720a0c3 100644
--- a/regress/sys/netinet/frag/frag_udppayload.py
+++ b/regress/sys/netinet/frag/frag_udppayload.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "udp fragments with splitted payload"
+print("udp fragments with splitted payload")
 
 # |--------|
 #          |----|
@@ -14,15 +14,15 @@ uport=pid & 0xffff
 # inetd ignores UDP packets from privileged port or nfs
 if uport < 1024 or uport == 2049:
 	uport+=1024
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     UDP(sport=uport, dport=7)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=17, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=17, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -40,15 +40,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    a.payload.payload.sport == 7:
 		port=a.payload.payload.dport
-		print "port=%d" % (port)
+		print("port=%d" % (port))
 		if port != uport:
-			print "WRONG UDP ECHO REPLY PORT"
+			print("WRONG UDP ECHO REPLY PORT")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO UDP ECHO REPLY"
+print("NO UDP ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_zerofirst.py b/regress/sys/netinet/frag/frag_zerofirst.py
index 2a5991fd2db..8bac8854322 100644
--- a/regress/sys/netinet/frag/frag_zerofirst.py
+++ b/regress/sys/netinet/frag/frag_zerofirst.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment without payload before first fragment"
+print("ping fragment without payload before first fragment")
 
 # ||
 # |--------|
@@ -12,7 +12,7 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
@@ -20,9 +20,9 @@ fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     flags='MF'))
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -40,15 +40,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)
diff --git a/regress/sys/netinet/frag/frag_zerosecond.py b/regress/sys/netinet/frag/frag_zerosecond.py
index 4522ee2e435..db8452e0b01 100644
--- a/regress/sys/netinet/frag/frag_zerosecond.py
+++ b/regress/sys/netinet/frag/frag_zerosecond.py
@@ -1,6 +1,6 @@
-#!/usr/local/bin/python2.7
+#!/usr/local/bin/python3
 
-print "ping fragment without payload after first fragment"
+print("ping fragment without payload after first fragment")
 
 # |--------|
 # ||
@@ -12,17 +12,17 @@ from scapy.all import *
 
 pid=os.getpid()
 eid=pid & 0xffff
-payload="ABCDEFGHIJKLMNOP"
+payload=b"ABCDEFGHIJKLMNOP"
 packet=IP(src=LOCAL_ADDR, dst=REMOTE_ADDR)/ \
     ICMP(type='echo-request', id=eid)/payload
 frag=[]
 fid=pid & 0xffff
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    flags='MF')/str(packet)[20:36])
+    flags='MF')/bytes(packet)[20:36])
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
     flags='MF'))
 frag.append(IP(src=LOCAL_ADDR, dst=REMOTE_ADDR, proto=1, id=fid,
-    frag=2)/str(packet)[36:44])
+    frag=2)/bytes(packet)[36:44])
 eth=[]
 for f in frag:
 	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/f)
@@ -40,15 +40,15 @@ for a in ans:
 	    a.payload.frag == 0 and a.payload.flags == 0 and \
 	    icmptypes[a.payload.payload.type] == 'echo-reply':
 		id=a.payload.payload.id
-		print "id=%#x" % (id)
+		print("id=%#x" % (id))
 		if id != eid:
-			print "WRONG ECHO REPLY ID"
+			print("WRONG ECHO REPLY ID")
 			exit(2)
 		data=a.payload.payload.payload.load
-		print "payload=%s" % (data)
+		print("payload=%s" % (data))
 		if data == payload:
 			exit(0)
-		print "PAYLOAD!=%s" % (payload)
+		print("PAYLOAD!=%s" % (payload))
 		exit(1)
-print "NO ECHO REPLY"
+print("NO ECHO REPLY")
 exit(2)