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Introduce LLC layer that has been completely missign so far

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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.
This commit is contained in:
Harald Welte 2011-04-24 11:10:52 +02:00
parent 2c6eab8f48
commit b5d6edbb82
4 changed files with 264 additions and 4 deletions
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20
src/tetra_upper_mac.c
View file

@ -29,7 +29,7 @@
#include "tetra_prim.h"
#include "tetra_upper_mac.h"
#include "tetra_mac_pdu.h"
#include "tetra_mle_pdu.h"
#include "tetra_llc_pdu.h"
#include "tetra_mm_pdu.h"
#include "tetra_cmce_pdu.h"
#include "tetra_sndcp_pdu.h"
@ -95,11 +95,11 @@ const char *tetra_alloc_dump(const struct tetra_chan_alloc_decoded *cad)
return buf;
}
static int rx_tm_sdu(uint8_t *bits, unsigned int len)
static int rx_tl_sdu(uint8_t *bits, unsigned int len)
{
uint8_t mle_pdisc = bits_to_uint(bits, 3);
printf("TM-SDU(%s): %s", tetra_get_mle_pdisc_name(mle_pdisc),
printf("TL-SDU(%s): %s", tetra_get_mle_pdisc_name(mle_pdisc),
ubit_dump(bits, len));
switch (mle_pdisc) {
case TMLE_PDISC_MM:
@ -120,6 +120,20 @@ static int rx_tm_sdu(uint8_t *bits, unsigned int len)
return len;
}
static int rx_tm_sdu(uint8_t *bits, unsigned int len)
{
struct tetra_llc_pdu lpp;
memset(&lpp, 0, sizeof(lpp));
tetra_llc_pdu_parse(&lpp, bits, len);
printf("TM-SDU(%s): ", tetra_get_llc_pdut_dec_name(lpp.pdu_type));
if (lpp.tl_sdu) {
rx_tl_sdu(lpp.tl_sdu, lpp.tl_sdu_len);
}
return len;
}
static void rx_resrc(struct tetra_tmvsap_prim *tmvp)
{
struct tmv_unitdata_param *tup = &tmvp->u.unitdata;