/* * Osmocom MSC+VLR end-to-end tests * * (C) 2018 by Vadim Yanitskiy * * All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . * */ #include "msc_vlr_tests.h" #define IMSI "901700000004620" #define FACILITY_IE_REQ \ "a113" /* Invoke component, len=19 */ \ "020101" /* InvokeID=1 */ \ "02013b" /* OpCode=GSM0480_OP_CODE_PROCESS_USS_REQ */ \ "300b" /* Sequence tag, len=11 */ \ "04010f" /* DCS: Default 7-bit alphabet */ \ "0406aa510c061b01" /* USSD text: *#100#, len=6 */ #define FACILITY_IE_RSP \ "a225" /* ReturnResult, len=37 */ \ "020101" /* InvokeID=1 */ \ "3020" /* Sequence tag, len=32 */ \ "02013b" /* OpCode=GSM0480_OP_CODE_PROCESS_USS_REQ */ \ "301b" /* Sequence tag, len=27 */ \ "04010f" /* DCS: Default 7-bit alphabet */ \ "0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d" static void perform_lu(void) { struct vlr_subscr *vsub; btw("Location Update request causes a GSUP LU request to HLR"); lu_result_sent = RES_NONE; gsup_expect_tx("04010809710000004026f0280102"); ms_sends_msg("050802008168000130089910070000006402"); OSMO_ASSERT(gsup_tx_confirmed); VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d"); btw("HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT"); gsup_rx("10010809710000004026f00804036470f1", "12010809710000004026f0"); VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d"); btw("HLR also sends GSUP _UPDATE_LOCATION_RESULT"); expect_bssap_clear(); gsup_rx("06010809710000004026f0", NULL); btw("LU was successful, and the conn has already been closed"); VERBOSE_ASSERT(lu_result_sent, == RES_ACCEPT, "%d"); VERBOSE_ASSERT(bssap_clear_sent, == true, "%d"); vsub = vlr_subscr_find_by_imsi(net->vlr, IMSI); VERBOSE_ASSERT(vsub != NULL, == true, "%d"); VERBOSE_ASSERT(strcmp(vsub->imsi, IMSI), == 0, "%d"); VERBOSE_ASSERT(vsub->lac, == 23, "%u"); vlr_subscr_put(vsub); bss_sends_clear_complete(); EXPECT_CONN_COUNT(0); } static void _test_ss_ussd_mo(enum ran_type via_ran) { /* TODO: UTRAN requires auth and ciph */ rx_from_ran = via_ran; /* Perform Location Update */ perform_lu(); BTW("after a while, a new conn sends a CM Service Request"); cm_service_result_sent = RES_NONE; ms_sends_msg("05247803305886089910070000006402"); OSMO_ASSERT(g_conn); OSMO_ASSERT(g_conn->fi); OSMO_ASSERT(g_conn->vsub); VERBOSE_ASSERT(cm_service_result_sent, == RES_ACCEPT, "%d"); EXPECT_ACCEPTED(true); /* MT: GSM 04.80 RELEASE COMPLETE with Facility IE */ gsup_expect_tx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */ "0108" "09710000004026f0" /* IMSI TLV */ "3004" "20000001" /* Session ID TLV */ "3101" "01" /* Session state: BEGIN */ "3515" FACILITY_IE_REQ); dtap_expect_tx("8b2a" "1c27" FACILITY_IE_RSP); expect_release_clear(via_ran); /* MO: GSM 04.80 REGISTER with Facility IE and SS version IE */ ms_sends_msg("0b7b" "1c15" FACILITY_IE_REQ "7f0100"); gsup_rx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */ "0108" "09710000004026f0" /* IMSI TLV */ "3004" "20000001" /* Session ID TLV */ "3101" "03" /* Session state: END */ "3527" FACILITY_IE_RSP, NULL); VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d"); ASSERT_RELEASE_CLEAR(via_ran); btw("all requests serviced, conn has been released"); bss_sends_clear_complete(); EXPECT_CONN_COUNT(0); } static void _test_ss_ussd_no(enum ran_type via_ran) { struct vlr_subscr *vsub; /* TODO: UTRAN requires auth and ciph */ rx_from_ran = via_ran; /* Perform Location Update */ perform_lu(); BTW("after a while, HLR initiates SS/USSD session"); paging_expect_imsi(IMSI); paging_sent = false; vsub = vlr_subscr_find_by_imsi(net->vlr, IMSI); OSMO_ASSERT(vsub); VERBOSE_ASSERT(llist_count(&vsub->cs.requests), == 0, "%d"); /* MT: GSM 04.80 REGISTER with request */ gsup_rx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */ "0108" "09710000004026f0" /* IMSI TLV */ "3004" "20000101" /* Session ID TLV */ "3101" "01" /* Session state: BEGIN */ "3515" FACILITY_IE_REQ, NULL); VERBOSE_ASSERT(llist_count(&vsub->cs.requests), == 1, "%d"); vlr_subscr_put(vsub); vsub = NULL; VERBOSE_ASSERT(paging_sent, == true, "%d"); VERBOSE_ASSERT(paging_stopped, == false, "%d"); btw("the subscriber and its pending request should remain"); vsub = vlr_subscr_find_by_imsi(net->vlr, IMSI); OSMO_ASSERT(vsub); VERBOSE_ASSERT(llist_count(&vsub->cs.requests), == 1, "%d"); vlr_subscr_put(vsub); btw("MS replies with Paging Response, we deliver the NC/USSD"); dtap_expect_tx("0b3b" "1c15" FACILITY_IE_REQ); ms_sends_msg("06270703305882089910070000006402"); VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d"); VERBOSE_ASSERT(paging_stopped, == true, "%d"); btw("MS responds to SS/USSD request"); /* MO: GSM 04.80 FACILITY with response */ gsup_expect_tx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */ "0108" "09710000004026f0" /* IMSI TLV */ "3004" "20000101" /* Session ID TLV */ "3101" "02" /* Session state: CONTINUE */ "3527" FACILITY_IE_RSP); ms_sends_msg("8b3a" "27" FACILITY_IE_RSP); VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d"); VERBOSE_ASSERT(paging_stopped, == true, "%d"); btw("HLR terminates the session"); /* MT: GSM 04.80 RELEASE COMPLETE without Facility IE */ dtap_expect_tx("0b2a"); expect_release_clear(via_ran); gsup_rx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */ "0108" "09710000004026f0" /* IMSI TLV */ "3004" "20000101" /* Session ID TLV */ "3101" "03", /* Session state: END */ NULL); VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d"); ASSERT_RELEASE_CLEAR(via_ran); btw("all requests serviced, conn has been released"); bss_sends_clear_complete(); EXPECT_CONN_COUNT(0); } static void test_ss_ussd_mo_geran() { comment_start(); _test_ss_ussd_mo(RAN_GERAN_A); clear_vlr(); comment_end(); } static void test_ss_ussd_no_geran() { comment_start(); _test_ss_ussd_no(RAN_GERAN_A); clear_vlr(); comment_end(); } msc_vlr_test_func_t msc_vlr_tests[] = { /* TODO: UTRAN requires auth and enc */ test_ss_ussd_mo_geran, /* MS-originated */ test_ss_ussd_no_geran, /* Network-originated */ NULL };