Re: Proposed update to DLT_BLUETOOTH_LE_LL_WITH_PHDR

[Guy Harris via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

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> From: Guy Harris <gharris () sonic net>
>
> Date: Thu, 9 Jul 2020 14:22:49 -0700
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> On Jul 9, 2020, at 1:46 PM, Sultan Khan <sultanqasim () gmail com> wrote:
>
> > Through discussions with Joakim Anderson (of Nordic) and Mike Ryan (Ubertooth developer), and going through several 
> > iterations of proposed protocol updates, I/we came up with this: 
> > https://gistcdn.githack.com/sultanqasim/8b6561309f5934f084a0d938ae733b7a/raw/LINKTYPE_BLUETOOTH_LE_LL_WITH_PHDR.html
>
> In the last paragraph, it says:
>
>         For packets using the LE Coded PHY as defined in the Bluetooth Core Specification v5.2, Volume 6, Part B, 
> Section 2.2, the Coding Indicator (CI) is represented by the two least significant bits of a dedicated coding indicator 
> byte between the Access Address and PDU. Packets received using the LE Coded PHY are represented in an uncoded form, so 
> the TERM1 and TERM2 coding terminators are not included in the LE packet field.
>
> Perhaps that's a bit clearer if stated as
>
>         For packets using the LE Coded PHY as defined in the Bluetooth Core Specification v5.2, Volume 6, Part B, 
> Section 2.2, the LE Packet is represented as the Coding Indicator (CI), stored in a one-octet field with the lower 2 
> bits containing the CI value, immediately followed by the PDU and the CRC.  Packets received using the LE Coded PHY are 
> represented in an uncoded form, so the TERM1 and TERM2 coding terminators are not included in the LE packet field.
>
> --- End Message ---
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