vyos.utils: T5195: add vyos.utils.network

1 files changed, 30 insertions, 0 deletions

diff --git a/python/vyos/utils/network.py b/python/vyos/utils/network.py
new file mode 100644
index 000000000..72b7ca6da
--- /dev/null
+++ b/python/vyos/utils/network.py
@@ -0,0 +1,30 @@
+# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+
+def get_protocol_by_name(protocol_name):
+    """Get protocol number by protocol name
+
+       % get_protocol_by_name('tcp')
+       % 6
+    """
+    import socket
+    try:
+        protocol_number = socket.getprotobyname(protocol_name)
+        return protocol_number
+    except socket.error:
+        return protocol_name