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How to add a custom field for TLVs in the SV and PTP protocols?

asked 2020-08-27 17:27:33 +0000

Senthil gravatar image

updated 2020-08-28 18:26:01 +0000

Guy Harris gravatar image

Hello,

How to add a custom field for dissecting TLV(Tag Length Value) with the Existing protocol dissectors?

Regards, S.Senthil

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Which existing protocol dissectors?

Guy Harris gravatar imageGuy Harris ( 2020-08-27 19:26:44 +0000 )edit

SV and PTP Protocol.

Senthil gravatar imageSenthil ( 2020-08-28 05:52:47 +0000 )edit

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answered 2020-08-28 16:11:35 +0000

Jaap gravatar image

The IEC 61850 Sampled Values dissector does not provide a hook for custom TLV dissection. Being an ASN.1 generated dissector, that would require reworking the templating for that dissector.

The IEEE 1855 Precision Time Protocol dissector has neither such hook, so would require changing that code as well.

Unless there's some Lua wizardry that can help here.

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Asked: 2020-08-27 17:27:33 +0000

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Last updated: Aug 28