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osmo-msc
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add parsing of IMSI DETACH

This commit is contained in:
Harald Welte 2009-02-22 21:14:55 +00:00
parent fe18d8fd89
commit 2a1393758d
1 changed files with 68 additions and 8 deletions
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76
src/gsm_04_08.c
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@ -510,6 +510,20 @@ static void schedule_reject(struct gsm_lchan *lchan)
schedule_timer(&lchan->loc_operation->updating_timer, 5, 0);
}
static const char *lupd_name(u_int8_t type)
{
switch (type) {
case GSM48_LUPD_NORMAL:
return "NORMAL";
case GSM48_LUPD_PERIODIC:
return "PEROIDOC";
case GSM48_LUPD_IMSI_ATT:
return "IMSI ATTACH";
default:
return "UNKNOWN";
}
}
#define MI_SIZE 32
/* Chapter 9.2.15: Receive Location Updating Request */
static int mm_rx_loc_upd_req(struct msgb *msg)
@ -530,7 +544,8 @@ static int mm_rx_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) type=%s ", mi_type, mi_string,
lupd_name(lu->type));
allocate_loc_updating_req(lchan);
@ -562,10 +577,10 @@ static int mm_rx_loc_upd_req(struct msgb *msg)
case GSM_MI_TYPE_IMEI:
case GSM_MI_TYPE_IMEISV:
/* no sim card... FIXME: what to do ? */
fprintf(stderr, "Unimplemented mobile identity type\n");
DEBUGP(DMM, "unimplemented mobile identity type\n");
break;
default:
fprintf(stderr, "Unknown mobile identity type\n");
DEBUGP(DMM, "unknown mobile identity type\n");
break;
}
@ -757,6 +772,7 @@ static int gsm48_rx_mm_serv_req(struct msgb *msg)
DEBUGP(DMM, "<- CM SERVICE REQUEST serv_type=0x%02x mi_type=0x%02x M(%s)\n",
req->cm_service_type, mi_type, mi_string);
/* FIXME: if we don't know the TMSI, inquire abit IMSI and allocate new TMSI */
if (!subscr)
return gsm48_tx_mm_serv_rej(msg->lchan,
GSM48_REJECT_IMSI_UNKNOWN_IN_HLR);
@ -771,6 +787,47 @@ static int gsm48_rx_mm_serv_req(struct msgb *msg)
return gsm48_tx_mm_serv_ack(msg->lchan);
}
static int gsm48_rx_mm_imsi_detach_ind(struct msgb *msg)
{
struct gsm48_hdr *gh = msgb_l3(msg);
struct gsm48_imsi_detach_ind *idi =
(struct gsm48_imsi_detach_ind *) gh->data;
u_int8_t mi_type = idi->mi[0] & GSM_MI_TYPE_MASK;
char mi_string[MI_SIZE];
struct gsm_subscriber *subscr;
mi_to_string(mi_string, sizeof(mi_string), idi->mi, idi->mi_len);
DEBUGP(DMM, "IMSI DETACH INDICATION: mi_type=0x%02x MI(%s): ",
mi_type, mi_string);
switch (mi_type) {
case GSM_MI_TYPE_TMSI:
subscr = subscr_get_by_tmsi(mi_string);
break;
case GSM_MI_TYPE_IMSI:
subscr = subscr_get_by_imsi(mi_string);
break;
case GSM_MI_TYPE_IMEI:
case GSM_MI_TYPE_IMEISV:
/* no sim card... FIXME: what to do ? */
fprintf(stderr, "Unimplemented mobile identity type\n");
break;
default:
fprintf(stderr, "Unknown mobile identity type\n");
break;
}
if (subscr)
DEBUGP(DMM, "Subscriber: %s\n",
subscr->name ? subscr->name : subscr->imsi);
else
DEBUGP(DMM, "Unknown Subscriber ?!?\n");
put_lchan(msg->lchan);
return 0;
}
/* Receive a GSM 04.08 Mobility Management (MM) message */
static int gsm0408_rcv_mm(struct msgb *msg)
{
@ -789,7 +846,7 @@ static int gsm0408_rcv_mm(struct msgb *msg)
rc = gsm48_rx_mm_serv_req(msg);
break;
case GSM48_MT_MM_STATUS:
DEBUGP(DMM, "MM STATUS: FIXME parse error cond.\n");
DEBUGP(DMM, "STATUS: FIXME parse error cond.\n");
break;
case GSM48_MT_MM_TMSI_REALL_COMPL:
DEBUGP(DMM, "TMSI Reallocation Completed. Subscriber: %s\n",
@ -797,11 +854,14 @@ static int gsm0408_rcv_mm(struct msgb *msg)
msg->lchan->subscr->imsi :
"unknown subscriber");
break;
case GSM48_MT_MM_CM_REEST_REQ:
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);
rc = gsm48_rx_mm_imsi_detach_ind(msg);
break;
case GSM48_MT_MM_CM_REEST_REQ:
DEBUGP(DMM, "CM REESTABLISH REQUEST: Not implemented\n");
break;
case GSM48_MT_MM_AUTH_RESP:
DEBUGP(DMM, "AUTHENTICATION RESPONSE: Not implemented\n");
break;
default:
fprintf(stderr, "Unknown GSM 04.08 MM msg type 0x%02x\n",