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Re: [PATCH v10 09/11] tools/python: modify libxc.py to verify v4 stream
- To: Paul Durrant <paul@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Mon, 25 Jan 2021 19:45:07 +0000
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- Cc: Paul Durrant <pdurrant@xxxxxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, Ian Jackson <iwj@xxxxxxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
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On 08/10/2020 19:57, Paul Durrant wrote:
> @@ -476,6 +484,14 @@ class VerifyLibxc(VerifyBase):
> raise RecordError("Record length %u, expected multiple of %u" %
> (contentsz, sz))
>
> + def verify_record_domain_context(self, content):
> + """ domain context record """
> +
> + if self.version < 4:
> + raise RecordError("Domain context record found in v3 stream")
> +
> + if len(content) == 0:
> + raise RecordError("Zero length domain context")
This needs a recursive dissector to validate the domain context format,
as it is not a private ABI within Xen.
~Andrew
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