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Using libbgpdump - obtain aspath?

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Rob Ballantyne robballantyne3 at gmail.com
Mon Nov 6 19:59:55 CET 2023

Hello All,

  I’ve just started looking at libbgpdump for a project where I will be parsing MRT/BGP data.

  I’ve managed, following the example/advice I’ve seen, to get a basic loop running through an update file from the repository working.

  However, I don’t seem to be able to find the ASPATH component in the parsed data structure.

  I can see the type/subtype of the data block is BGPDUMP_TYPE_ZEBRA_BGP/BGPDUMP_SUBTYPE_ZEBRA_BGP_MESSAGE. I can also see that the BGPDUMP_BODY is a discriminated union based on these values.  I can see that BGPDUMP_ENTRY.attr should probably contain an ASPATH but it doesn’t seem to be set ever.  

  Should I be expecting the ASPATH to be set in this case?  Should I be doing something different (calling some init function after discovering the BGPDUMP_BODY is of the right type?).

  Thanks!

Rob

  
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