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Send IDENTITY REQUEST after LOCATION UPDATE REQUEST

This commit is contained in:
Harald Welte 2008-12-27 11:15:38 +00:00
parent 9524e34ee4
commit 231ad4f9c1
1 changed files with 51 additions and 10 deletions
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61
src/gsm_04_08.c
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@ -293,17 +293,49 @@ static int mi_to_string(char *string, int str_len, u_int8_t *mi, int mi_len)
return str_cur - string;
}
#define MI_SIZE 20
/* Chapter 9.2.10 */
static int mm_tx_identity_req(struct gsm_lchan *lchan, u_int8_t id_type)
{
struct msgb *msg = gsm48_msgb_alloc();
struct gsm48_hdr *gh;
msg->lchan = lchan;
gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
gh->proto_discr = GSM48_PDISC_MM;
gh->msg_type = GSM48_MT_MM_ID_REQ;
gh->data[0] = id_type;
return gsm0408_sendmsg(msg);
}
#define MI_SIZE 32
/* Chapter 9.2.11 */
static int mm_rx_id_resp(struct msgb *msg)
{
struct gsm48_hdr *gh = msgb_l3(msg);
u_int8_t mi_type = gh->data[1] & GSM_MI_TYPE_MASK;
char mi_string[MI_SIZE];
mi_to_string(mi_string, sizeof(mi_string), &gh->data[1], gh->data[0]);
DEBUGP(DMM, "IDENTITY RESPONSE: mi_type=0x%02x (MI(%s)\n",
mi_type, mi_string);
/* FIXME: update subscribe <-> IMEI mapping */
}
#define MI_SIZE 32
/* Chapter 9.2.15 */
static int mm_loc_upd_req(struct msgb *msg)
static int mm_rx_loc_upd_req(struct msgb *msg)
{
struct gsm48_hdr *gh = msgb_l3(msg);
struct gsm_bts *bts = msg->trx->bts;
struct gsm48_loc_upd_req *lu;
struct gsm_subscriber *subscr;
u_int8_t mi_type;
char mi_string[20];
char mi_string[MI_SIZE];
int rc;
lu = (struct gsm48_loc_upd_req *) gh->data;
@ -311,18 +343,22 @@ static int mm_loc_upd_req(struct msgb *msg)
mi_to_string(mi_string, sizeof(mi_string), lu->mi, lu->mi_len);
DEBUGP(DMM, "LUPDREQ: mi_type = 0x%02x MI(%s)\n", mi_type, mi_string);
DEBUGP(DMM, "LUPDREQ: mi_type=0x%02x MI(%s)\n", mi_type, mi_string);
switch (mi_type) {
case GSM_MI_TYPE_IMSI:
/* we always want the IMEI, too */
rc = mm_tx_identity_req(msg->lchan, GSM_MI_TYPE_IMEISV);
/* look up subscriber based on IMSI */
subscr = subscr_get_by_imsi(lu->mi);
break;
case GSM_MI_TYPE_TMSI:
/* we always want the IMEI, too */
rc = mm_tx_identity_req(msg->lchan, GSM_MI_TYPE_IMEISV);
/* look up the subscriber based on TMSI, request IMSI if it fails */
subscr = subscr_get_by_tmsi(lu->mi);
if (!subscr) {
/* FIXME: send IDENTITY REQUEST message to get IMSI */
//gsm0408_identity_request(...GSM_MI_TYPE_IMSI);
/* send IDENTITY REQUEST message to get IMSI */
rc = mm_tx_identity_req(msg->lchan, GSM_MI_TYPE_IMSI);
}
break;
case GSM_MI_TYPE_IMEI:
@ -378,16 +414,21 @@ static int gsm0408_rcv_mm(struct msgb *msg)
switch (gh->msg_type & 0xbf) {
case GSM48_MT_MM_LOC_UPD_REQUEST:
DEBUGP(DMM, "LOCATION UPDATE REQUEST\n");
rc = mm_loc_upd_req(msg);
rc = mm_rx_loc_upd_req(msg);
break;
case GSM48_MT_MM_ID_RESP:
case GSM48_MT_MM_TMSI_REALL_COMPL:
case GSM48_MT_MM_AUTH_RESP:
case GSM48_MT_MM_IMSI_DETACH_IND:
rc = mm_rx_id_resp(msg);
break;
case GSM48_MT_MM_CM_SERV_REQ:
rc = gsm48_rx_mm_serv_req(msg);
break;
case GSM48_MT_MM_STATUS:
DEBUGP(DMM, "MM STATUS: FIXME parse error cond.\n");
break;
case GSM48_MT_MM_CM_REEST_REQ:
case GSM48_MT_MM_TMSI_REALL_COMPL:
case GSM48_MT_MM_AUTH_RESP:
case GSM48_MT_MM_IMSI_DETACH_IND:
fprintf(stderr, "Unimplemented GSM 04.08 MM msg type 0x%02x\n",
gh->msg_type);
break;