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GSM 04.08: Improve IMEI recording in hlr.sqlite3 for rejected subscribers

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If we send the IDENTITY REQUEST for IMEI before sending the IDENTITY
REQUEST for IMSI, the probability is higher that we receive the IMEI
response and associate it with the respective subscriber.
This commit is contained in:
Harald Welte
2010-06-07 17:56:32 +02:00
parent 7f573d5668
commit f5f512cc59
1 changed files with 3 additions and 4 deletions
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7
openbsc/src/gsm_04_08.c
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@@ -389,10 +389,6 @@ static int mm_rx_loc_upd_req(struct msgb *msg)
break;
case GSM_MI_TYPE_TMSI:
DEBUGPC(DMM, "\n");
/* we always want the IMEI, too */
rc = mm_tx_identity_req(lchan, GSM_MI_TYPE_IMEI);
conn->loc_operation->waiting_for_imei = 1;
/* look up the subscriber based on TMSI, request IMSI if it fails */
subscr = subscr_get_by_tmsi(bts->network,
tmsi_from_string(mi_string));
@@ -401,6 +397,9 @@ static int mm_rx_loc_upd_req(struct msgb *msg)
rc = mm_tx_identity_req(lchan, GSM_MI_TYPE_IMSI);
conn->loc_operation->waiting_for_imsi = 1;
}
/* we always want the IMEI, too */
rc = mm_tx_identity_req(lchan, GSM_MI_TYPE_IMEI);
conn->loc_operation->waiting_for_imei = 1;
break;
case GSM_MI_TYPE_IMEI:
case GSM_MI_TYPE_IMEISV: