The upper mac now maintains a defragmentation buffer for each timeslot. Resources with length -1 (fragmentation start) are added to the buf for that slot, further mac/frag frames are appended. When a mac/end is encountered, the reconstructed l2 message is passed to rx_tm_sdu. The tetra_llc_pdu struct now uses a uint32_t for tl_sdu_len in order to account for the possibly longer sdus. Fill bits processing was required in order to reliably determine the end of a MAC PDU.
Change-Id: I41c9438b0b12c2fac9dff1b226eec5b33f30fbb4
tetra_llc_pdu.c now parses the FCS (Frame Check Sequence) for basic link pdus
that use it. Some changes were made to the tetra_resrc_decoded struct
definition. The have_fcs field designates the FCS was present, while the FCS
field holds the extracted FCS, and FCS_invalid designates an FCS was present
but differs from the computed value.
Change-Id: I81941110801d00ca06bdafdcc0a7afaf7b7617d3
All our MM/CMCE/SNDCP 'decodes' were broken previously, as they
assumed that the MM/CMCE/SNDCP message follows immediately after the
MAC header. However, there's the LLC layer in between.
This is just simple LLC decoding and does not do re-assembly yet.
wbokslag
Harald Welte