How to find start of header in buffer (if not starting at 0th byte)

[Hardik Patel <hardik.party () gmail com>]

Hello,

In normal case packet header start at 0th byte of buffer, but in case of
packet reassembled my packet header start after some offset.


[image: Inline image 1]


In  above case my packet header start at 7th byte of buffer .

so i need to know what is length of individual buffer in my dissector
program.

so can any buddy guide how to do this??

Regards,
Hardik Patel

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