Wireshark · Wireshark-dev: Re: [Wireshark-dev] Regenerate asn dissector

[Dario Lombardo <dario.lombardo.ml@xxxxxxxxx>]

That's what I needed. I was close to it, but I didn't get the right starting point for regenerating.

What's missing IMHO is a cmake target for that. Maybe I will take some time to add one (many, actually).

Thanks Darien.

On Mon, Feb 19, 2018 at 2:41 PM, Darien Spencer <cusneud@xxxxxxxx> wrote:

Hi 

I've done this several times and the way I do it is:

1. Look for the final dissector file, should be under epan/dissector/packet-xxx.c (in this case packet-snmp.c)

2. Copy the build command for asn2wrs as seen in the 4th line. In this case it looks like this:

asn2wrs.py -b -p snmp -c ./snmp.cnf -s ./packet-snmp-template -D . -O ../.. snmp.asn

3. Open the command prompt in your dissector's asn1 folder (/epan/dissector/asn1/snmp/)

4. Run asn2wrs.py using it's full path. In my case it's "C:\Development\wireshark\tools\asn2wrs.py" and add the parameters you saw in the generated file

so it should look line this:

C:\Development\wireshark\tools\asn2wrs.py -b -p snmp -c ./snmp.cnf -s ./packet-snmp-template -D . -O ../.. snmp.asn

 

This should create the new packet-snmp.c and .h files under epan/dissectors/ and override the existing ones

 

Darien

 

Sent: Monday, February 19, 2018 at 2:55 PM
From: "Dario Lombardo" <dario.lombardo.ml@xxxxxxxxx>
To: "Developer support list for Wireshark" <wireshark-dev@xxxxxxxxxxxxx>
Subject: [Wireshark-dev] Regenerate asn dissector

Hi

I've modified epan/dissectors/asn1/snmp/packet-snmp-template.c and I want to regenerate the corresponding dissector.

I've found the cmake target epan/dissectors/asn1/snmp/generate_dissector-snmp, but building it doesn't regenerate the dissector.

What's the missing step?

Thanks.

Dario.

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