6LoWPAN over BLE (RFC7668)

This file implements a RFC7668 implementation for 6LoWPAN over Bluetooth Low Energy. The specification is very similar to 6LoWPAN, so most of the code is re-used. Compared to 6LoWPAN, much functionality is already implemented in lower BLE layers (fragmenting, session management,...).

Usage:

• add this netif
  • don't add IPv4 addresses (no IPv4 support in RFC7668), pass 'NULL','NULL','NULL'
  • use the BLE to EUI64 conversation util to create an IPv6 link-local address from the BLE MAC (ble_addr_to_eui64)
  • input function: rfc7668_input
• set the link output function, which transmits output data to an established L2CAP channel

• If data arrives (HCI event "L2CAP_DATA_PACKET"):

  • allocate a PBUF_RAW buffer
  • let the pbuf struct point to the incoming data or copy it to the buffer
  • call netif->input

  Todo:

  :