Adrian Moreno <[email protected]> writes:
> diff --git a/python/ovs/flows/decoders.py b/python/ovs/flows/decoders.py
> index 73d5c0c60..2f8e5bd0a 100644
> --- a/python/ovs/flows/decoders.py
> +++ b/python/ovs/flows/decoders.py
> @@ -16,3 +25,392 @@ def decode_default(value):
> return int(value, 0)
> except ValueError:
> return value
> +
> +
> +def decode_flag(value):
> + """Decode a flag. It's existance is just flagged by returning True."""
'existence'
> + return True
> +
> +
> +def decode_int(value):
> + """Integer decoder.
> +
> + Both base10 and base16 integers are supported.
Is this true? If `value` is a string, it isn't. int("0x4") throws an
exception but int(0x4) doesn't.
> + Used for fields such as:
> + n_bytes=34
> + metadata=0x4
> + """
> + return int(value, 0)
[...]
> +class IntMask(Decoder):
> + """Base class for Integer Mask decoder classes.
> +
> + It supports decoding a value/mask pair. The class has to be derived,
> + and the size attribute must be set.
> + """
> +
> + size = None # Size in bits.
> +
> + def __init__(self, string):
> + if not self.size:
> + raise NotImplementedError(
> + "IntMask should be derived and " "size should be fixed"
> + )
Any reason not to join the strings here?
> +class EthMask(Decoder):
> + """EthMask represents an Ethernet address with optional mask.
This is nitpicky, but the capitalisation of Ethernet is inconsistent
throughout this function; it'd be nice to clean it up.
[...]
> + def __eq__(self, other):
> + """Equality operator.
> +
> + Both the Ethernet address and the mask are compared. This can be used
> + to implement filters where we expecte a specific mask to be present,
'expect'
[...]
> +class IPMask(Decoder):
> + """IPMask stores an IPv6 or IPv4 and a mask.
> +
> + It uses netaddr.IPAddress.
> +
> + IPMasks can represent valid CIDRs or randomly maked IP Addresses.
'masked'?
> + def __contains__(self, other):
> + """Contains operator.
> +
> + Only comparing valid CIDRs is supported.
> +
> + Args:
> + other (netaddr.IPAddres or IPMask): An IP address.
'netaddr.IPAddress'
--
James
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