Re: [PATCH net-next 10/11] tools: ynl: decode hex input

["Asbjørn Sloth Tønnesen" <ast@fiberby.net>]

On 9/9/25 6:10 PM, Sabrina Dubroca wrote:
> 2025-09-04, 22:01:33 +0000, Asbjørn Sloth Tønnesen wrote:
>> This patch add support for decoding hex input, so
>> that binary attributes can be read through --json.
>>
>> Example (using future wireguard.yaml):
>>   $ sudo ./tools/net/ynl/pyynl/cli.py --family wireguard \
>>     --do set-device --json '{"ifindex":3,
>>       "private-key":"2a ae 6c 35 c9 4f cf <... to 32 bytes>"}'
>>
>> Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
>> ---
>>   tools/net/ynl/pyynl/lib/ynl.py | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/tools/net/ynl/pyynl/lib/ynl.py b/tools/net/ynl/pyynl/lib/ynl.py
>> index a37294a751da..78c0245ca587 100644
>> --- a/tools/net/ynl/pyynl/lib/ynl.py
>> +++ b/tools/net/ynl/pyynl/lib/ynl.py
>> @@ -973,6 +973,8 @@ class YnlFamily(SpecFamily):
>>                   raw = ip.packed
>>               else:
>>                   raw = int(ip)
>> +        elif attr_spec.display_hint == 'hex':
>> +            raw = bytes.fromhex(string)
> 
> I'm working on a spec for macsec and ended up with a similar change,
> but doing instead:
> 
> +        elif attr_spec.display_hint == 'hex':
> +            raw = int(string, 16)
> 
> since the destination attribute is u32/u64 and not binary for macsec.
> 
> So maybe this should be:
> 
> +            if attr_spec['type'] == 'binary':
> +                raw = bytes.fromhex(string)
> +            else:
> +                raw = int(string, 16)
> 
> to cover both cases?
> 
> I think it matches better what's already in _formatted_string.
> 
> (I don't mind having the current patch go in and making this change
> together with the macsec spec when it's ready)

Cool, I will include it in v2, which I hope to get out tomorrow.