Enabling/disabling 4G RAN for given subscriber
The change adds support for enabling and disabling connection through 4G RAN by a subscriber with use of USSD codes. Change-Id: Idf964d9c770a0a1cb5c486eb2a7592d6bf44171c
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0b49796412
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@ -29,3 +29,5 @@ hlr
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ussd route prefix *#201# internal gsm-on
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ussd route prefix *#300# internal umts-off
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ussd route prefix *#301# internal umts-on
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ussd route prefix *#400# internal lte-off
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ussd route prefix *#401# internal lte-on
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@ -81,7 +81,7 @@ CREATE TABLE auc_3g (
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-- If a subscriber has no entry, that means that all RATs are allowed (backwards compat).
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CREATE TABLE subscriber_rat (
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subscriber_id INTEGER, -- subscriber.id
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rat TEXT CHECK(rat in ('GERAN-A', 'UTRAN-Iu')) NOT NULL, -- Radio Access Technology, see enum ran_type
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rat TEXT CHECK(rat in ('GERAN-A', 'UTRAN-Iu','EUTRAN-SGs')) NOT NULL, -- Radio Access Technology, see enum ran_type
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allowed BOOLEAN CHECK(allowed in (0, 1)) NOT NULL DEFAULT 0
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);
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@ -373,14 +373,17 @@ static int handle_ussd_get_ran(struct osmo_gsup_conn *conn, struct ss_session *s
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rat = "2G";
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else if (!strcmp(subscr.last_lu_rat, "UTRAN-Iu"))
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rat = "3G";
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else if (!strcmp(subscr.last_lu_rat, "EUTRAN-SGs"))
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rat = "4G";
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else
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rat = subscr.last_lu_rat;
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snprintf(response, sizeof(response),
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"Now on %s. Available:%s%s.",
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"Now on %s. Available:%s%s%s.",
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rat,
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subscr.rat_types[OSMO_RAT_GERAN_A]? " 2G" : "",
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subscr.rat_types[OSMO_RAT_UTRAN_IU]? " 3G" : "");
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subscr.rat_types[OSMO_RAT_UTRAN_IU]? " 3G" : "",
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subscr.rat_types[OSMO_RAT_EUTRAN_SGS]? " 4G" : "");
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rc = ss_tx_ussd_7bit(ss, true, req->invoke_id, response);
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break;
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@ -500,6 +503,59 @@ static int handle_ussd_umts_off(struct osmo_gsup_conn *conn, struct ss_session *
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return rc;
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}
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static int handle_ussd_lte_on(struct osmo_gsup_conn *conn, struct ss_session *ss,
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const struct osmo_gsup_message *gsup,
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const struct ss_request *req)
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{
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struct hlr_subscriber subscr;
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int rc;
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rc = db_subscr_get_by_imsi(g_hlr->dbc, ss->imsi, &subscr);
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switch (rc) {
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case 0:
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hlr_subscr_rat_flag(g_hlr, &subscr, OSMO_RAT_EUTRAN_SGS, true);
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rc = ss_tx_ussd_7bit(ss, true, req->invoke_id,
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"Enabled EUTRAN-SGs (4G)");
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break;
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case -ENOENT:
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rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_UNKNOWN_SUBSCRIBER);
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break;
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case -EIO:
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default:
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rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_SYSTEM_FAILURE);
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break;
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}
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return rc;
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}
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static int handle_ussd_lte_off(struct osmo_gsup_conn *conn, struct ss_session *ss,
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const struct osmo_gsup_message *gsup,
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const struct ss_request *req)
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{
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struct hlr_subscriber subscr;
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int rc;
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rc = db_subscr_get_by_imsi(g_hlr->dbc, ss->imsi, &subscr);
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switch (rc) {
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case 0:
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hlr_subscr_rat_flag(g_hlr, &subscr, OSMO_RAT_EUTRAN_SGS, false);
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rc = ss_tx_ussd_7bit(ss, true, req->invoke_id,
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"Disabled EUTRAN-SGs (4G)");
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break;
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case -ENOENT:
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rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_UNKNOWN_SUBSCRIBER);
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break;
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case -EIO:
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default:
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rc = ss_tx_error(ss, true, GSM0480_ERR_CODE_SYSTEM_FAILURE);
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break;
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}
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return rc;
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}
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static const struct hlr_iuse hlr_iuses[] = {
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{
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.name = "own-msisdn",
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@ -529,6 +585,14 @@ static const struct hlr_iuse hlr_iuses[] = {
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.name = "umts-off",
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.handle_ussd = handle_ussd_umts_off,
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},
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{
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.name = "lte-on",
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.handle_ussd = handle_ussd_lte_on,
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},
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{
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.name = "lte-off",
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.handle_ussd = handle_ussd_lte_off,
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},
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};
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const struct hlr_iuse *iuse_find(const char *name)
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@ -156,13 +156,17 @@ DEFUN(cfg_hlr_gsup_bind_ip,
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#define UROUTE_STR "Routing Configuration\n"
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#define PREFIX_STR "Prefix-Matching Route\n" "USSD Prefix\n"
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#define INT_CHOICE "(own-msisdn|own-imsi|get-ran|gsm-on|gsm-off|umts-on|umts-off)"
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#define INT_CHOICE "(own-msisdn|own-imsi|get-ran|gsm-on|gsm-off|umts-on|umts-off|lte-on|lte-off)"
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#define INT_STR "Internal USSD Handler\n" \
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"Respond with subscribers' own MSISDN\n" \
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"Respond with subscribers' own IMSI\n" \
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"Respond with available RAN types\n" \
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"Enable GSM service\n" \
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"Disable GSM service\n" \
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"Enable UMTS service\n" \
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"Disable UMTS service\n"
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"Disable UMTS service\n" \
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"Enable LTE service\n" \
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"Disable LTE service\n"
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#define EXT_STR "External USSD Handler\n" \
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"Name of External USSD Handler (IPA CCM ID)\n"
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@ -615,11 +615,12 @@ DEFUN(subscriber_nam,
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DEFUN(subscriber_rat,
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subscriber_rat_cmd,
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SUBSCR_UPDATE "rat (geran-a|utran-iu) (allowed|forbidden)",
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SUBSCR_UPDATE "rat (geran-a|utran-iu|eutran-sgs) (allowed|forbidden)",
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SUBSCR_UPDATE_HELP
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"Allow or forbid specific Radio Access Types\n"
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"Set access to GERAN-A\n"
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"Set access to UTRAN-Iu\n"
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"Set access to EUTRAN-SGs\n"
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"Allow access\n"
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"Forbid access\n")
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{
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@ -636,7 +637,7 @@ DEFUN(subscriber_rat,
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rat = OSMO_RAT_GERAN_A;
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else if (strcmp(rat_str, "utran-iu") == 0)
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rat = OSMO_RAT_UTRAN_IU;
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else if (strcmp(rat_str, "eutran") == 0)
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else if (strcmp(rat_str, "eutran-sgs") == 0)
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rat = OSMO_RAT_EUTRAN_SGS;
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allowed = (strcmp(allowed_forbidden, "allowed") == 0);
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@ -54,7 +54,7 @@ struct lu_operation {
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enum lu_state state;
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/*! CS (false) or PS (true) Location Update? */
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bool is_ps;
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/*! RAT type indicator: coming in on GERAN-A? UTRAN-Iu? */
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/*! RAT type indicator: coming in on GERAN-A? UTRAN-Iu? E-UTRAN?*/
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enum osmo_rat_type via_rat;
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/*! currently running timer */
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