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osmo-hlr
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add USSD handlers to enable/disable 2G access 

Change-Id: Ib266bf6ebc7692362a443efbf9b4ae69aee671d6
This commit is contained in:
Neels Hofmeyr 2018-12-29 05:29:00 +01:00
parent 060f2032d9
commit 5d07d33456
3 changed files with 64 additions and 2 deletions
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2
doc/examples/osmo-hlr.cfg
View File

@ -25,5 +25,7 @@ hlr
ussd route prefix *#100# internal own-msisdn
ussd route prefix *#101# internal own-imsi
ussd route prefix *#102# internal get-ran
ussd route prefix *#200# internal gsm-off
ussd route prefix *#201# internal gsm-on
ussd route prefix *#300# internal umts-off
ussd route prefix *#301# internal umts-on

62
src/hlr_ussd.c
View File

@ -343,7 +343,7 @@ static int handle_ussd_get_ran(struct osmo_gsup_conn *conn, struct ss_session *s
snprintf(response, sizeof(response),
"Now on %s. Available:%s%s."
" (enable 3G: *#301# disable 3G: *#300#)", rat,
" (2G on: *#201# off: *#200# -- 3G on: *#301# off: *#300#)", rat,
subscr.rat_types[OSMO_RAT_GERAN_A]? " 2G" : "",
subscr.rat_types[OSMO_RAT_UTRAN_IU]? " 3G" : "");
@ -361,6 +361,58 @@ static int handle_ussd_get_ran(struct osmo_gsup_conn *conn, struct ss_session *s
return rc;
}
static int handle_ussd_gsm_on(struct osmo_gsup_conn *conn, struct ss_session *ss,
const struct osmo_gsup_message *gsup,
const struct ss_request *req)
{
struct hlr_subscriber subscr;
int rc;
rc = db_subscr_get_by_imsi(g_hlr->dbc, ss->imsi, &subscr);
switch (rc) {
case 0:
hlr_subscr_rat_flag(g_hlr, &subscr, OSMO_RAT_GERAN_A, true);
rc = ss_tx_ussd_7bit(ss, true, req->invoke_id,
"Enabled GERAN-A (2G)");
break;
case -ENOENT:
rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_UNKNOWN_SUBSCRIBER);
break;
case -EIO:
default:
rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_SYSTEM_FAILURE);
break;
}
return rc;
}
static int handle_ussd_gsm_off(struct osmo_gsup_conn *conn, struct ss_session *ss,
const struct osmo_gsup_message *gsup,
const struct ss_request *req)
{
struct hlr_subscriber subscr;
int rc;
rc = db_subscr_get_by_imsi(g_hlr->dbc, ss->imsi, &subscr);
switch (rc) {
case 0:
hlr_subscr_rat_flag(g_hlr, &subscr, OSMO_RAT_GERAN_A, false);
rc = ss_tx_ussd_7bit(ss, true, req->invoke_id,
"Disabled GERAN-A (2G)");
break;
case -ENOENT:
rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_UNKNOWN_SUBSCRIBER);
break;
case -EIO:
default:
rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_SYSTEM_FAILURE);
break;
}
return rc;
}
static int handle_ussd_umts_on(struct osmo_gsup_conn *conn, struct ss_session *ss,
const struct osmo_gsup_message *gsup,
const struct ss_request *req)
@ -426,6 +478,14 @@ static const struct hlr_iuse hlr_iuses[] = {
.name = "get-ran",
.handle_ussd = handle_ussd_get_ran,
},
{
.name = "gsm-on",
.handle_ussd = handle_ussd_gsm_on,
},
{
.name = "gsm-off",
.handle_ussd = handle_ussd_gsm_off,
},
{
.name = "umts-on",
.handle_ussd = handle_ussd_umts_on,

2
src/hlr_vty.c
View File

@ -133,7 +133,7 @@ DEFUN(cfg_hlr_gsup_bind_ip,
#define UROUTE_STR "Routing Configuration\n"
#define PREFIX_STR "Prefix-Matching Route\n" "USSD Prefix\n"
#define INT_CHOICE "(own-msisdn|own-imsi|get-ran|umts-on|umts-off)"
#define INT_CHOICE "(own-msisdn|own-imsi|get-ran|gsm-on|gsm-off|umts-on|umts-off)"
#define INT_STR "Internal USSD Handler\n" \
"Respond with subscribers' own MSISDN\n" \
"Respond with subscribers' own IMSI\n" \