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[gprs] GMM: update MM context RA ID / TLLI when appropriate

This commit is contained in:
Harald Welte 2010-05-02 12:56:57 +02:00
parent 11d7c105f8
commit 9f1f3ad7bb
1 changed files with 11 additions and 5 deletions
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16
openbsc/src/gsm_04_08_gprs.c
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@ -1,7 +1,7 @@
/* GSM Mobile Radio Interface Layer 3 messages on the A-bis interface
* 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
/* (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
*
* All Rights Reserved
*
@ -292,6 +292,7 @@ static int gsm48_rx_gmm_att_req(struct msgb *msg)
uint32_t tmsi;
char mi_string[GSM48_MI_SIZE];
struct gprs_ra_id ra_id;
uint16_t cid;
struct sgsn_mm_ctx *ctx;
DEBUGP(DMM, "GMM ATTACH REQUEST ");
@ -300,7 +301,7 @@ static int gsm48_rx_gmm_att_req(struct msgb *msg)
* with a foreign TLLI (P-TMSI that was allocated to the MS before),
* or with random TLLI. */
bssgp_parse_cell_id(&ra_id, msgb_bcid(msg));
cid = bssgp_parse_cell_id(&ra_id, msgb_bcid(msg));
/* MS network capability 10.5.5.12 */
msnc_len = *cur++;
@ -367,8 +368,11 @@ static int gsm48_rx_gmm_att_req(struct msgb *msg)
}
break;
default:
break;
return 0;
}
/* Update MM Context with currient RA and Cell ID */
ctx->ra = ra_id;
ctx->cell_id = cid;
/* FIXME: allocate a new P-TMSI (+ P-TMSI signature) */
/* FIXME: update the TLLI with the new local TLLI based on the P-TMSI */
@ -472,8 +476,10 @@ static int gsm48_rx_gmm_ra_upd_req(struct msgb *msg)
return gsm48_tx_gmm_ra_upd_rej(msg, GMM_CAUSE_IMPL_DETACHED);
}
/* FIXME: Update the MM context with the new RA-ID */
/* FIXME: Update the MM context with the new TLLI */
/* Update the MM context with the new RA-ID */
bssgp_parse_cell_id(&mmctx->ra, msgb_bcid(msg));
/* Update the MM context with the new TLLI */
mmctx->tlli = msgb_tlli(msg);
/* FIXME: Update the MM context with the MS radio acc capabilities */
/* FIXME: Update the MM context with the MS network capabilities */