netdev - [PATCH net-next v1 4/7] tools/net/ynl: accept IP string inputs

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Message-ID: <20241203130655.45293-5-donald.hunter@gmail.com>
Date: Tue,  3 Dec 2024 13:06:52 +0000
From: Donald Hunter <donald.hunter@...il.com>
To: netdev@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Johannes Berg <johannes@...solutions.net>,
	linux-wireless@...r.kernel.org
Cc: donald.hunter@...hat.com,
	Donald Hunter <donald.hunter@...il.com>
Subject: [PATCH net-next v1 4/7] tools/net/ynl: accept IP string inputs

The ynl tool uses display-hint to know when to format IP addresses in
printed output, but not to parse IP addresses from --json input. Add
support for parsing ipv4 and ipv6 strings.

Signed-off-by: Donald Hunter <donald.hunter@...il.com>
---
 tools/net/ynl/lib/ynl.py | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/tools/net/ynl/lib/ynl.py b/tools/net/ynl/lib/ynl.py
index f07a8404f71a..c861c1a7d933 100644
--- a/tools/net/ynl/lib/ynl.py
+++ b/tools/net/ynl/lib/ynl.py
@@ -536,9 +536,11 @@ class YnlFamily(SpecFamily):
         try:
             return int(value)
         except (ValueError, TypeError) as e:
-            if 'enum' not in attr_spec:
-                raise e
-        return self._encode_enum(attr_spec, value)
+            if 'enum' in attr_spec:
+                return self._encode_enum(attr_spec, value)
+            if attr_spec.display_hint:
+                return self._from_string(value, attr_spec.display_hint, attr_spec['type'])
+            raise e
 
     def _add_attr(self, space, name, value, search_attrs):
         try:
@@ -571,7 +573,10 @@ class YnlFamily(SpecFamily):
             if isinstance(value, bytes):
                 attr_payload = value
             elif isinstance(value, str):
-                attr_payload = bytes.fromhex(value)
+                if attr.display_hint:
+                    attr_payload = self._from_string(value, attr.display_hint, attr['type'])
+                else:
+                    attr_payload = bytes.fromhex(value)
             elif isinstance(value, dict) and attr.struct_name:
                 attr_payload = self._encode_struct(attr.struct_name, value)
             else:
@@ -899,6 +904,17 @@ class YnlFamily(SpecFamily):
             formatted = raw
         return formatted
 
+    def _from_string(self, string, display_hint, type):
+        if display_hint in ['ipv4', 'ipv6']:
+            ip = ipaddress.ip_address(string)
+            if type == 'binary':
+                raw = ip.packed
+            else:
+                raw = int(ip)
+        else:
+            raw = string
+        return raw
+
     def handle_ntf(self, decoded):
         msg = dict()
         if self.include_raw:
-- 
2.47.1