Traffic scripts: Move valid_ipv* to a library

No need to implement the same two functions in 5 places.

Change-Id: I7bbcfaba18030a0520aaef5dcf06ed155bcf806b
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/GPL/traffic_scripts/ValidIp.py b/GPL/traffic_scripts/ValidIp.py
new file mode 100644
index 0000000000..57244119c7
--- /dev/null
+++ b/GPL/traffic_scripts/ValidIp.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2021 Cisco and/or its affiliates.
+#
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# Licensed under the Apache License 2.0 or
+# GNU General Public License v2.0 or later;  you may not use this file
+# except in compliance with one of these Licenses. You
+# may obtain a copy of the Licenses at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
+#
+# Note: If this file is linked with Scapy, which is GPLv2+, your use of it
+# must be under GPLv2+.  If at any point in the future it is no longer linked
+# with Scapy (or other GPLv2+ licensed software), you are free to choose
+# Apache 2.
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Functions simplifying address validation."""
+
+import ipaddress
+
+
+def valid_ipv4(ip_address):
+    """Check IPv4 address.
+
+    :param ip_address: IPv4 address to check.
+    :type ip_address: str
+    :returns: True if IP address is correct.
+    :rtype: bool
+    """
+    try:
+        ipaddress.IPv4Address(ip_address)
+        return True
+    except (AttributeError, ipaddress.AddressValueError):
+        return False
+
+
+def valid_ipv6(ip_address):
+    """Check IPv6 address.
+
+    :param ip_address: IPv6 address to check.
+    :type ip_address: str
+    :returns: True if IP address is correct.
+    :rtype: bool
+    """
+    try:
+        ipaddress.IPv6Address(ip_address)
+        return True
+    except (AttributeError, ipaddress.AddressValueError):
+        return False