linux-kernel - [RFC net-next 5/7] selftests: openvswitch: Support implicit ipv6 arguments.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240613181333.984810-6-aconole@redhat.com>
Date: Thu, 13 Jun 2024 14:13:31 -0400
From: Aaron Conole <aconole@...hat.com>
To: netdev@...r.kernel.org
Cc: dev@...nvswitch.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Pravin B Shelar <pshelar@....org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>,
	Adrian Moreno <amorenoz@...hat.com>,
	Stefano Brivio <sbrivio@...hat.com>,
	Ilya Maximets <i.maximets@....org>
Subject: [RFC net-next 5/7] selftests: openvswitch: Support implicit ipv6 arguments.

The current iteration of IPv6 support requires explicit fields to be set
in addition to not properly support the actual IPv6 addresses properly.
With this change, make it so that the ipv6() bare option is usable to
create wildcarded flows to match broad swaths of ipv6 traffic.

Signed-off-by: Aaron Conole <aconole@...hat.com>
---
 .../selftests/net/openvswitch/ovs-dpctl.py    | 43 ++++++++++++-------
 1 file changed, 28 insertions(+), 15 deletions(-)

diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
index 5545e5cab1d6..2577a06c58cf 100644
--- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
+++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
@@ -200,6 +200,19 @@ def convert_ipv4(data):
 
     return int(ipaddress.IPv4Address(ip)), int(ipaddress.IPv4Address(mask))
 
+def convert_ipv6(data):
+    ip, _, mask = data.partition('/')
+
+    if not ip:
+        ip = mask = 0
+    elif not mask:
+        mask = 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff'
+    elif mask.isdigit():
+        mask = ipaddress.IPv6Network("::/" + mask).hostmask
+
+    return ipaddress.IPv6Address(ip).packed, ipaddress.IPv6Address(mask).packed
+
+
 def convert_int(size):
     def convert_int_sized(data):
         value, _, mask = data.partition('/')
@@ -937,21 +950,21 @@ class ovskey(nla):
                 "src",
                 "src",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
-                lambda x: ipaddress.IPv6Address(x),
+                lambda x: ipaddress.IPv6Address(x).packed if x else 0,
+                convert_ipv6,
             ),
             (
                 "dst",
                 "dst",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
-                lambda x: ipaddress.IPv6Address(x),
+                lambda x: ipaddress.IPv6Address(x).packed if x else 0,
+                convert_ipv6,
             ),
-            ("label", "label", "%d", int),
-            ("proto", "proto", "%d", int),
-            ("tclass", "tclass", "%d", int),
-            ("hlimit", "hlimit", "%d", int),
-            ("frag", "frag", "%d", int),
+            ("label", "label", "%d", lambda x: int(x) if x else 0),
+            ("proto", "proto", "%d", lambda x: int(x) if x else 0),
+            ("tclass", "tclass", "%d", lambda x: int(x) if x else 0),
+            ("hlimit", "hlimit", "%d", lambda x: int(x) if x else 0),
+            ("frag", "frag", "%d", lambda x: int(x) if x else 0),
         )
 
         def __init__(
@@ -1148,8 +1161,8 @@ class ovskey(nla):
             (
                 "target",
                 "target",
-                lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
+                lambda x: ipaddress.IPv6Address(x).packed,
+                convert_ipv6,
             ),
             ("sll", "sll", macstr, lambda x: int.from_bytes(x, "big")),
             ("tll", "tll", macstr, lambda x: int.from_bytes(x, "big")),
@@ -1233,14 +1246,14 @@ class ovskey(nla):
             (
                 "src",
                 "src",
-                lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big", convertmac),
+                lambda x: ipaddress.IPv6Address(x).packed,
+                convert_ipv6,
             ),
             (
                 "dst",
                 "dst",
-                lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
+                lambda x: ipaddress.IPv6Address(x).packed,
+                convert_ipv6,
             ),
             ("tp_src", "tp_src", "%d", int),
             ("tp_dst", "tp_dst", "%d", int),
-- 
2.45.1