osmocom
/
libosmo-gprs
mirror of https://gerrit.osmocom.org/libosmo-gprs
14
0
Fork 0
Code Releases Wiki Activity

llc: Fix N(U) wrongly reset during LLGM-ASSIGN.req 

Change-Id: Ifd6d59703cc2d267fc37595a1ad47e326ebd2a30
This commit is contained in:
Pau Espin 2023-05-02 17:00:33 +02:00
parent 8ea5b7146f
commit c8cf2e8adf
1 changed files with 11 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/llc/llc_llgmm.c
View File

@ -153,16 +153,24 @@ static int llc_prim_handle_llgm_assign_req(struct osmo_gprs_llc_prim *llc_prim)
/* If TLLI old == TLLI_UNASSIGNED was assigned to LLME, then this is
* TLLI assignmemt according to 8.3.1 */
llme->old_tlli = TLLI_UNASSIGNED;
llme->tlli = new_tlli;
llme->state = OSMO_GPRS_LLC_LLMS_ASSIGNED;
/* 8.5.3.1 For all LLE's */
for (i = 0; i < ARRAY_SIZE(llme->lle); i++) {
struct gprs_llc_lle *l = &llme->lle[i];
l->vu_send = l->vu_recv = 0;
l->retrans_ctr = 0;
l->state = OSMO_GPRS_LLC_LLES_ASSIGNED_ADM;
if (llme->tlli != new_tlli) {
/* Only reset state if the new tlli is really changing.
* During GMM attachment, the TLLI is already known and
* used by LLC (LLME allocated on the fly), and hence it
* is expected to keep using previous state with the
* same TLLI from here onwards.
*/
l->vu_send = l->vu_recv = 0;
l->retrans_ctr = 0;
}
/* FIXME Set parameters according to table 9 */
}
llme->tlli = new_tlli;
}
} else if (old_tlli != TLLI_UNASSIGNED && new_tlli != TLLI_UNASSIGNED) {
/* TLLI Change 8.3.2 */