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[SGSN] MM: Properly communicate TLLI changes / unassignment to LLC

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This commit is contained in:
Harald Welte
2010-06-28 22:18:53 +02:00
parent f7fef48e1b
commit bd5c91276b
1 changed files with 9 additions and 3 deletions
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12
openbsc/src/gprs/gprs_gmm.c
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@@ -631,6 +631,7 @@ static int gsm48_rx_gmm_det_req(struct sgsn_mm_ctx *ctx, struct msgb *msg)
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 @@ static int gsm48_rx_gmm_det_req(struct sgsn_mm_ctx *ctx, struct msgb *msg)
}
/* 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 @@ static int gsm0408_rcv_gmm(struct sgsn_mm_ctx *mmctx, struct msgb *msg,
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 @@ static int gsm0408_rcv_gmm(struct sgsn_mm_ctx *mmctx, struct msgb *msg,
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");