tcpdump mailing list archives
DLT for LLCP
From: mike wakerly <mikey () google com>
Date: Wed, 8 Feb 2012 12:26:29 +0100
Hi there! I'd like to request a new encapsulation type for NFC Logical Link Control Protocol (LLCP) [1]. LLCP is a layer 2 protocol for near-field communication (NFC) devices. It is used in Android [2] (among other platforms), and there are a few usermode implementations ([3], [4]) for various host adapters. A new encapsulation type is needed for reasons similar to i2c and bluetooth. Hosts need to record frame directionality in addition to raw frame data. As an example, a psuedo-header prepended to individual LLCP frames recorded in this format might look like this: struct llcp_phdr { guint16 adapter; /* Adapter number, typically 0. */ guint16 flags; /* Direction flag (TX/RX) and future use. */ }; Can you allocate a new DLT_ for this? thanks! mike References: [1] http://www.nfc-forum.org/specs/spec_list/ [2] http://developer.android.com/guide/topics/nfc/nfc.html [3] https://launchpad.net/nfcpy [4] http://www.libnfc.org/documentation/introduction - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- DLT for LLCP mike wakerly (Feb 08)
- Re: DLT for LLCP Guy Harris (Feb 08)
- Re: DLT for LLCP mike wakerly (Feb 13)
- Re: DLT for LLCP mike wakerly (Feb 21)
- Re: DLT for LLCP Guy Harris (Feb 28)