Wireshark mailing list archives
Re: Can a Lua dissector access Wireshark preferences?
From: "Maynard, Chris" <Christopher.Maynard () IGT com>
Date: Thu, 30 Aug 2018 16:42:06 +0000
If you look at the documentation for ProtoField.new and friends[1], you can see that there’s a “mask” argument. That specifies how many bits applies to this field. So for example, below there are 2 fields, field1 is the upper nibble of a byte, field2 is the lower nibble of a byte: local foo_field1 = ProtoField.uint8("foo.field1", "Field1", base.DEC, nil, 0xf0) local foo_field2 = ProtoField.uint8("foo.field2", "Field2", base.DEC, nil, 0x0f) - Chris [1]: https://www.wireshark.org/docs/wsdg_html_chunked/lua_module_Proto.html#lua_class_ProtoField From: Wireshark-dev [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of David Aldrich Sent: Thursday, August 30, 2018 11:51 AM To: wireshark-dev () wireshark org Subject: [Wireshark-dev] Can a Lua dissector access Wireshark preferences? Hi For my lua dissector, I want to be able to specify the bit width of a data field using a Wireshark Preference. Is that possible? If so, where would I find some help on how to do it? Best regards David CONFIDENTIALITY NOTICE: This message is the property of International Game Technology PLC and/or its subsidiaries and may contain proprietary, confidential or trade secret information. This message is intended solely for the use of the addressee. If you are not the intended recipient and have received this message in error, please delete this message from your system. Any unauthorized reading, distribution, copying, or other use of this message or its attachments is strictly prohibited.
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Current thread:
- Can a Lua dissector access Wireshark preferences? David Aldrich (Aug 30)
- Re: Can a Lua dissector access Wireshark preferences? Maynard, Chris (Aug 30)
- Re: Can a Lua dissector access Wireshark preferences? Jeff Morriss (Aug 30)
- Re: Can a Lua dissector access Wireshark preferences? David Aldrich (Aug 31)
- Re: Can a Lua dissector access Wireshark preferences? Jeff Morriss (Aug 30)
- Re: Can a Lua dissector access Wireshark preferences? Maynard, Chris (Aug 30)