[SGSN] MM: Properly communicate TLLI changes / unassignment to LLC
diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 63583ec..bd5a7fa 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -631,6 +631,7 @@
struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_gmmh(msg);
struct sgsn_pdp_ctx *pdp, *pdp2;
uint8_t detach_type, power_off;
+ int rc;
detach_type = gh->data[0] & 0x7;
power_off = gh->data[0] & 0x8;
@@ -654,7 +655,12 @@
}
/* force_stby = 0 */
- return gsm48_tx_gmm_det_ack(ctx, 0);
+ rc = gsm48_tx_gmm_det_ack(ctx, 0);
+
+ /* TLLI unassignment */
+ gprs_llgmm_assign(ctx->llme, ctx->tlli, 0xffffffff, 0, NULL);
+
+ return rc;
}
/* Chapter 9.4.15: Routing area update accept */
@@ -877,7 +883,7 @@
mmctx->p_tmsi_old = 0;
/* Unassign the old TLLI */
mmctx->tlli = mmctx->tlli_new;
- //gprs_llgmm_assign(mmctx->llme, 0xffffffff, mmctx->tlli_new, 0, NULL);
+ gprs_llgmm_assign(mmctx->llme, 0xffffffff, mmctx->tlli_new, 0, NULL);
break;
case GSM48_MT_GMM_RA_UPD_COMPL:
/* only in case SGSN offered new P-TMSI */
@@ -886,7 +892,7 @@
mmctx->p_tmsi_old = 0;
/* Unassign the old TLLI */
mmctx->tlli = mmctx->tlli_new;
- //gprs_llgmm_assign(mmctx->llme, 0xffffffff, mmctx->tlli_new, 0, NULL);
+ gprs_llgmm_assign(mmctx->llme, 0xffffffff, mmctx->tlli_new, 0, NULL);
break;
case GSM48_MT_GMM_PTMSI_REALL_COMPL:
DEBUGP(DMM, "-> PTMSI REALLLICATION COMPLETE\n");