| /* Osmocom MSC+VLR end-to-end tests */ |
| |
| /* (C) 2017 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
| * |
| * All Rights Reserved |
| * |
| * Author: Neels Hofmeyr <nhofmeyr@sysmocom.de> |
| * |
| * 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 <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <getopt.h> |
| #include <stdlib.h> |
| |
| #include <osmocom/core/logging.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/application.h> |
| #include <osmocom/gsm/protocol/gsm_04_11.h> |
| #include <osmocom/gsm/gsup.h> |
| #include <osmocom/gsupclient/gsup_client.h> |
| #include <osmocom/msc/gsm_04_11.h> |
| #include <osmocom/msc/debug.h> |
| #include <osmocom/msc/gsm_04_08.h> |
| #include <osmocom/msc/transaction.h> |
| #include <osmocom/msc/a_iface_bssap.h> |
| |
| #if BUILD_IU |
| #include <osmocom/msc/iucs_ranap.h> |
| #include <osmocom/ranap/iu_client.h> |
| #else |
| #include <osmocom/msc/iu_dummy.h> |
| #endif |
| |
| #include "msc_vlr_tests.h" |
| |
| void *msc_vlr_tests_ctx = NULL; |
| |
| bool _log_lines = false; |
| |
| struct gsm_network *net = NULL; |
| |
| const char *gsup_tx_expected = NULL; |
| bool gsup_tx_confirmed; |
| |
| struct msgb *dtap_tx_expected = NULL; |
| bool dtap_tx_confirmed; |
| |
| enum result_sent lu_result_sent; |
| enum result_sent cm_service_result_sent; |
| bool auth_request_sent; |
| const char *auth_request_expect_rand; |
| const char *auth_request_expect_autn; |
| bool cipher_mode_cmd_sent; |
| bool cipher_mode_cmd_sent_with_imeisv; |
| const char *cipher_mode_expect_kc; |
| bool security_mode_ctrl_sent; |
| const char *security_mode_expect_ck; |
| const char *security_mode_expect_ik; |
| |
| bool iu_release_expected = false; |
| bool iu_release_sent = false; |
| bool bssap_clear_expected = false; |
| bool bssap_clear_sent = false; |
| |
| uint32_t cc_to_mncc_tx_expected_msg_type = 0; |
| const char *cc_to_mncc_tx_expected_imsi = NULL; |
| bool cc_to_mncc_tx_confirmed = false; |
| uint32_t cc_to_mncc_tx_got_callref = 0; |
| |
| extern int gsm0407_pdisc_ctr_bin(uint8_t pdisc); |
| |
| /* static state variables for the L3 send sequence numbers */ |
| static uint8_t n_sd[4]; |
| |
| /* patch a correct send sequence number into the given message */ |
| static void patch_l3_seq_nr(struct msgb *msg) |
| { |
| struct gsm48_hdr *gh = msgb_l3(msg); |
| uint8_t pdisc = gsm48_hdr_pdisc(gh); |
| uint8_t *msg_type_oct = &msg->l3h[1]; |
| int bin = gsm0407_pdisc_ctr_bin(pdisc); |
| |
| if (bin >= 0 && bin < ARRAY_SIZE(n_sd)) { |
| /* patch in n_sd into the msg_type octet */ |
| *msg_type_oct = (*msg_type_oct & 0x3f) | ((n_sd[bin] & 0x3) << 6); |
| //fprintf(stderr, "pdisc=0x%02x bin=%d, patched n_sd=%u\n\n", pdisc, bin, n_sd[bin] & 3); |
| /* increment N(SD) */ |
| n_sd[bin] = (n_sd[bin] + 1) % 4; |
| } else { |
| //fprintf(stderr, "pdisc=0x%02x NO SEQ\n\n", pdisc); |
| } |
| } |
| |
| /* reset L3 sequence numbers (e.g. new RR connection) */ |
| static void reset_l3_seq_nr() |
| { |
| memset(n_sd, 0, sizeof(n_sd)); |
| } |
| |
| struct msgb *msgb_from_hex(const char *label, uint16_t size, const char *hex) |
| { |
| struct msgb *msg = msgb_alloc_headroom(size, 4, label); |
| unsigned char *rc; |
| msg->l2h = msg->data; |
| rc = msgb_put(msg, osmo_hexparse(hex, msg->data, msgb_tailroom(msg))); |
| OSMO_ASSERT(rc == msg->l2h); |
| return msg; |
| } |
| |
| static const char *gh_type_name(struct gsm48_hdr *gh) |
| { |
| return gsm48_pdisc_msgtype_name(gsm48_hdr_pdisc(gh), |
| gsm48_hdr_msg_type(gh)); |
| } |
| |
| void dtap_expect_tx(const char *hex) |
| { |
| /* Has the previously expected dtap been received? */ |
| OSMO_ASSERT(!dtap_tx_expected); |
| if (!hex) |
| return; |
| dtap_tx_expected = msgb_from_hex("dtap_tx_expected", 1024, hex); |
| /* Mask the sequence number out */ |
| if (msgb_length(dtap_tx_expected) >= 2) |
| dtap_tx_expected->data[1] &= 0x3f; |
| dtap_tx_confirmed = false; |
| } |
| |
| int vlr_gsupc_read_cb(struct osmo_gsup_client *gsupc, struct msgb *msg); |
| |
| void gsup_rx(const char *rx_hex, const char *expect_tx_hex) |
| { |
| int rc; |
| struct msgb *msg; |
| const char *label; |
| |
| gsup_expect_tx(expect_tx_hex); |
| |
| msg = msgb_from_hex("gsup", 1024, rx_hex); |
| label = osmo_gsup_message_type_name(msg->l2h[0]); |
| fprintf(stderr, "<-- GSUP rx %s: %s\n", label, |
| osmo_hexdump_nospc(msgb_l2(msg), msgb_l2len(msg))); |
| /* GSUP read cb takes ownership of msgb */ |
| rc = vlr_gsupc_read_cb(net->vlr->gsup_client, msg); |
| fprintf(stderr, "<-- GSUP rx %s: vlr_gsupc_read_cb() returns %d\n", |
| label, rc); |
| if (expect_tx_hex) |
| OSMO_ASSERT(gsup_tx_confirmed); |
| } |
| |
| bool conn_exists(const struct ran_conn *conn) |
| { |
| struct ran_conn *c; |
| |
| if (!conn) |
| return false; |
| |
| llist_for_each_entry(c, &net->ran_conns, entry) { |
| if (c == conn) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /* Simplified version of the cm_service_request_concludes() */ |
| void conn_conclude_cm_service_req(struct ran_conn *conn, |
| enum osmo_rat_type via_ran) |
| { |
| btw("Concluding CM Service Request"); |
| |
| OSMO_ASSERT(conn); |
| OSMO_ASSERT(conn->received_cm_service_request); |
| |
| conn->received_cm_service_request = false; |
| ran_conn_put(conn, RAN_CONN_USE_CM_SERVICE); |
| |
| ASSERT_RELEASE_CLEAR(via_ran); |
| } |
| |
| enum osmo_rat_type rx_from_ran = OSMO_RAT_GERAN_A; |
| |
| /* SCCP user stub to make a_iface_tx_bssap() happy during test case execution */ |
| struct osmo_sccp_user { |
| uint8_t foo; |
| }; |
| static struct osmo_sccp_user g_scu; |
| |
| struct ran_conn *conn_new(void) |
| { |
| struct ran_conn *conn; |
| conn = ran_conn_alloc(net, rx_from_ran, 23); |
| if (conn->via_ran == OSMO_RAT_UTRAN_IU) { |
| struct ranap_ue_conn_ctx *ue_ctx = talloc_zero(conn, struct ranap_ue_conn_ctx); |
| *ue_ctx = (struct ranap_ue_conn_ctx){ |
| .conn_id = 42, |
| }; |
| conn->iu.ue_ctx = ue_ctx; |
| } else { |
| conn->a.scu = &g_scu; |
| } |
| return conn; |
| } |
| |
| struct ran_conn *g_conn = NULL; |
| |
| void rx_from_ms(struct msgb *msg) |
| { |
| struct gsm48_hdr *gh = msgb_l3(msg); |
| |
| log("MSC <--%s-- MS: %s", |
| osmo_rat_type_name(rx_from_ran), |
| gh_type_name(gh)); |
| |
| if (!conn_exists(g_conn)) |
| g_conn = NULL; |
| |
| if (!g_conn) { |
| log("new conn"); |
| g_conn = conn_new(); |
| reset_l3_seq_nr(); |
| patch_l3_seq_nr(msg); |
| ran_conn_compl_l3(g_conn, msg, 23); |
| } else { |
| patch_l3_seq_nr(msg); |
| if ((gsm48_hdr_pdisc(gh) == GSM48_PDISC_RR) |
| && (gsm48_hdr_msg_type(gh) == GSM48_MT_RR_CIPH_M_COMPL)) |
| ran_conn_cipher_mode_compl(g_conn, msg, 0); |
| else |
| ran_conn_dtap(g_conn, msg); |
| } |
| |
| if (!conn_exists(g_conn)) |
| g_conn = NULL; |
| } |
| |
| void ms_sends_msg(const char *hex) |
| { |
| struct msgb *msg; |
| |
| msg = msgb_from_hex("ms_sends_msg", 1024, hex); |
| msg->l1h = msg->l2h = msg->l3h = msg->data; |
| rx_from_ms(msg); |
| msgb_free(msg); |
| } |
| |
| void bss_sends_bssap_mgmt(const char *hex) |
| { |
| struct msgb *msg; |
| struct bssmap_header *bh; |
| struct a_conn_info a_conn_info; |
| |
| msg = msgb_from_hex("bss_sends_bssap_mgmt", 1024, hex); |
| msg->l3h = msg->data; |
| |
| msg->l2h = msgb_push(msg, sizeof(*bh)); |
| bh = (void*)msg->l2h; |
| bh->type = BSSAP_MSG_BSS_MANAGEMENT; |
| bh->length = msgb_l3len(msg); |
| |
| if (!conn_exists(g_conn)) |
| g_conn = NULL; |
| |
| OSMO_ASSERT(g_conn); |
| a_conn_info.network = net; |
| a_conn_info.conn_id = g_conn->a.conn_id; |
| |
| a_sccp_rx_dt((struct osmo_sccp_user*)0x1, &a_conn_info, msg); |
| msgb_free(msg); |
| } |
| |
| static int ms_sends_msg_fake(uint8_t pdisc, uint8_t msg_type) |
| { |
| int rc; |
| struct msgb *msg; |
| struct gsm48_hdr *gh; |
| |
| msg = msgb_alloc(1024, "ms_sends_msg_fake"); |
| msg->l1h = msg->l2h = msg->l3h = msg->data; |
| |
| gh = (struct gsm48_hdr*)msgb_put(msg, sizeof(*gh)); |
| gh->proto_discr = pdisc; |
| gh->msg_type = msg_type; |
| /* some amount of data, whatever */ |
| msgb_put(msg, 123); |
| |
| patch_l3_seq_nr(msg); |
| rc = gsm0408_dispatch(g_conn, msg); |
| |
| talloc_free(msg); |
| return rc; |
| } |
| |
| static inline void ms_msg_log_err(uint8_t val, uint8_t msgtype) |
| { |
| int rc = ms_sends_msg_fake(val, msgtype); |
| if (rc != -EACCES) |
| log("Unexpected return value %u != %u for %s/%s", |
| -rc, -EACCES, gsm48_pdisc_name(val), gsm48_cc_msg_name(msgtype)); |
| } |
| |
| void thwart_rx_non_initial_requests() |
| { |
| log("requests shall be thwarted"); |
| |
| ms_msg_log_err(GSM48_PDISC_CC, GSM48_MT_CC_SETUP); |
| ms_msg_log_err(GSM48_PDISC_MM, 0x33); /* nonexistent */ |
| ms_msg_log_err(GSM48_PDISC_RR, GSM48_MT_RR_SYSINFO_1); |
| ms_msg_log_err(GSM48_PDISC_SMS, GSM411_MT_CP_DATA); |
| } |
| |
| void send_sms(struct vlr_subscr *receiver, |
| struct vlr_subscr *sender, |
| char *str) |
| { |
| struct gsm_sms *sms = sms_from_text(receiver, sender->msisdn, 0, str); |
| gsm411_send_sms(net, receiver, sms); |
| } |
| |
| unsigned char next_rand_byte = 0; |
| /* override, requires '-Wl,--wrap=osmo_get_rand_id' */ |
| int __real_osmo_get_rand_id(uint8_t *buf, size_t num); |
| int __wrap_osmo_get_rand_id(uint8_t *buf, size_t num) |
| { |
| size_t i; |
| for (i = 0; i < num; i++) |
| buf[i] = next_rand_byte++; |
| return 1; |
| } |
| |
| /* override, requires '-Wl,--wrap=gsm340_gen_scts' */ |
| void __real_gsm340_gen_scts(uint8_t *scts, time_t time); |
| void __wrap_gsm340_gen_scts(uint8_t *scts, time_t time) |
| { |
| /* Write fixed time bytes for deterministic test results */ |
| osmo_hexparse("07101000000000", scts, 7); |
| } |
| |
| const char *paging_expecting_imsi = NULL; |
| uint32_t paging_expecting_tmsi; |
| bool paging_sent; |
| bool paging_stopped; |
| |
| void paging_expect_imsi(const char *imsi) |
| { |
| paging_expecting_imsi = imsi; |
| paging_expecting_tmsi = GSM_RESERVED_TMSI; |
| } |
| |
| void paging_expect_tmsi(uint32_t tmsi) |
| { |
| paging_expecting_tmsi = tmsi; |
| paging_expecting_imsi = NULL; |
| } |
| |
| static int _paging_sent(enum osmo_rat_type via_ran, const char *imsi, uint32_t tmsi, uint32_t lac) |
| { |
| log("%s sends out paging request to IMSI %s, TMSI 0x%08x, LAC %u", |
| osmo_rat_type_name(via_ran), imsi, tmsi, lac); |
| OSMO_ASSERT(paging_expecting_imsi || (paging_expecting_tmsi != GSM_RESERVED_TMSI)); |
| if (paging_expecting_imsi) |
| VERBOSE_ASSERT(strcmp(paging_expecting_imsi, imsi), == 0, "%d"); |
| if (paging_expecting_tmsi != GSM_RESERVED_TMSI) { |
| VERBOSE_ASSERT(paging_expecting_tmsi, == tmsi, "0x%08x"); |
| } |
| paging_sent = true; |
| paging_stopped = false; |
| return 1; |
| } |
| |
| /* override, requires '-Wl,--wrap=ranap_iu_page_cs' */ |
| int __real_ranap_iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac); |
| int __wrap_ranap_iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac) |
| { |
| return _paging_sent(OSMO_RAT_UTRAN_IU, imsi, tmsi ? *tmsi : GSM_RESERVED_TMSI, lac); |
| } |
| |
| /* override, requires '-Wl,--wrap=a_iface_tx_paging' */ |
| int __real_a_iface_tx_paging(const char *imsi, uint32_t tmsi, uint16_t lac); |
| int __wrap_a_iface_tx_paging(const char *imsi, uint32_t tmsi, uint16_t lac) |
| { |
| return _paging_sent(OSMO_RAT_GERAN_A, imsi, tmsi, lac); |
| } |
| |
| /* override, requires '-Wl,--wrap=msc_stop_paging' */ |
| void __real_msc_stop_paging(struct vlr_subscr *vsub); |
| void __wrap_msc_stop_paging(struct vlr_subscr *vsub) |
| { |
| paging_stopped = true; |
| } |
| |
| |
| /* override, requires '-Wl,--wrap=osmo_sccp_tx_data_msg' */ |
| int __real_osmo_sccp_tx_data_msg(struct osmo_sccp_user *scu, uint32_t conn_id, |
| struct msgb *msg); |
| int __wrap_osmo_sccp_tx_data_msg(struct osmo_sccp_user *scu, uint32_t conn_id, |
| struct msgb *msg) |
| { |
| const char *proto_str; |
| const char *msg_str = gsm0808_bssmap_name(msg->l3h[2]); |
| switch (*msg->l3h) { |
| case BSSAP_MSG_BSS_MANAGEMENT: |
| proto_str = "BSSAP-BSS-MANAGEMENT"; |
| break; |
| case BSSAP_MSG_DTAP: |
| proto_str = "BSSAP-DTAP"; |
| break; |
| default: |
| proto_str = ""; |
| msg_str = ""; |
| break; |
| } |
| |
| log("BSC <--%s-- MSC: %s %s", proto_str, msg_str, msgb_hexdump(msg)); |
| msgb_free(msg); |
| return 0; |
| } |
| |
| void clear_vlr() |
| { |
| struct vlr_subscr *vsub, *n; |
| llist_for_each_entry_safe(vsub, n, &net->vlr->subscribers, list) { |
| vlr_subscr_free(vsub); |
| } |
| |
| net->authentication_required = false; |
| net->a5_encryption_mask = (1 << 0); |
| net->vlr->cfg.check_imei_rqd = false; |
| net->vlr->cfg.assign_tmsi = false; |
| net->vlr->cfg.retrieve_imeisv_early = false; |
| net->vlr->cfg.retrieve_imeisv_ciphered = false; |
| net->vlr->cfg.auth_tuple_max_reuse_count = 0; |
| net->vlr->cfg.auth_reuse_old_sets_on_error = false; |
| |
| rx_from_ran = OSMO_RAT_GERAN_A; |
| auth_request_sent = false; |
| auth_request_expect_rand = NULL; |
| auth_request_expect_autn = NULL; |
| |
| cipher_mode_cmd_sent = false; |
| cipher_mode_cmd_sent_with_imeisv = false; |
| cipher_mode_expect_kc = NULL; |
| |
| security_mode_ctrl_sent = false; |
| security_mode_expect_ck = NULL; |
| security_mode_expect_ik = NULL; |
| |
| next_rand_byte = 0; |
| |
| iu_release_expected = false; |
| iu_release_sent = false; |
| bssap_clear_expected = false; |
| bssap_clear_sent = false; |
| |
| osmo_gettimeofday_override = false; |
| } |
| |
| static struct log_info_cat test_categories[] = { |
| [DMSC] = { |
| .name = "DMSC", |
| .description = "Mobile Switching Center", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DRLL] = { |
| .name = "DRLL", |
| .description = "A-bis Radio Link Layer (RLL)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DMM] = { |
| .name = "DMM", |
| .description = "Layer3 Mobility Management (MM)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DRR] = { |
| .name = "DRR", |
| .description = "Layer3 Radio Resource (RR)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DCC] = { |
| .name = "DCC", |
| .description = "Layer3 Call Control (CC)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DVLR] = { |
| .name = "DVLR", |
| .description = "Visitor Location Register", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DREF] = { |
| .name = "DREF", |
| .description = "Reference Counting", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DPAG] = { |
| .name = "DPAG", |
| .description = "Paging Subsystem", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DIUCS] = { |
| .name = "DIUCS", |
| .description = "Iu-CS Protocol", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DMNCC] = { |
| .name = "DMNCC", |
| .description = "MNCC API for Call Control application", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DBSSAP] = { |
| .name = "DBSSAP", |
| .description = "BSSAP Protocol (A Interface)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| }; |
| |
| static struct log_info info = { |
| .cat = test_categories, |
| .num_cat = ARRAY_SIZE(test_categories), |
| }; |
| |
| int mncc_recv(struct gsm_network *net, struct msgb *msg) |
| { |
| struct gsm_mncc *mncc = (void*)msg->data; |
| log("MSC --> MNCC: callref 0x%x: %s", mncc->callref, |
| get_mncc_name(mncc->msg_type)); |
| |
| OSMO_ASSERT(cc_to_mncc_tx_expected_msg_type); |
| if (cc_to_mncc_tx_expected_msg_type != mncc->msg_type) { |
| log("Mismatch! Expected MNCC msg type: %s", |
| get_mncc_name(cc_to_mncc_tx_expected_msg_type)); |
| abort(); |
| } |
| |
| if (strcmp(cc_to_mncc_tx_expected_imsi, mncc->imsi)) { |
| log("Mismatch! Expected MNCC msg IMSI: '%s', got '%s'", |
| cc_to_mncc_tx_expected_imsi, |
| mncc->imsi); |
| abort(); |
| } |
| |
| cc_to_mncc_tx_confirmed = true; |
| cc_to_mncc_tx_got_callref = mncc->callref; |
| cc_to_mncc_tx_expected_imsi = NULL; |
| cc_to_mncc_tx_expected_msg_type = 0; |
| talloc_free(msg); |
| return 0; |
| } |
| |
| struct osmo_gsup_client * |
| __real_osmo_gsup_client_create2(struct ipaccess_unit *ipa_dev, const char *ip_addr, |
| unsigned int tcp_port, osmo_gsup_client_read_cb_t read_cb, |
| struct osmo_oap_client_config *oap_config); |
| struct osmo_gsup_client * |
| __wrap_osmo_gsup_client_create2(struct ipaccess_unit *ipa_dev, const char *ip_addr, |
| unsigned int tcp_port, osmo_gsup_client_read_cb_t read_cb, |
| struct osmo_oap_client_config *oap_config) |
| { |
| struct osmo_gsup_client *gsupc; |
| gsupc = talloc_zero(msc_vlr_tests_ctx, struct osmo_gsup_client); |
| OSMO_ASSERT(gsupc); |
| return gsupc; |
| } |
| |
| /* override, requires '-Wl,--wrap=gsup_client_send' */ |
| int __real_osmo_gsup_client_send(struct osmo_gsup_client *gsupc, struct msgb *msg); |
| int __wrap_osmo_gsup_client_send(struct osmo_gsup_client *gsupc, struct msgb *msg) |
| { |
| uint8_t buf[512]; |
| int len; |
| |
| fprintf(stderr, "GSUP --> HLR: %s: %s\n", |
| osmo_gsup_message_type_name(msg->data[0]), osmo_hexdump_nospc(msg->data, msg->len)); |
| |
| OSMO_ASSERT(gsup_tx_expected); |
| OSMO_ASSERT(strlen(gsup_tx_expected) <= (sizeof(buf) * 2)); |
| |
| len = osmo_hexparse(gsup_tx_expected, buf, sizeof(buf)); |
| if (len < 1) |
| abort(); |
| |
| if (!msgb_eq_data_print(msg, buf, len)) |
| abort(); |
| |
| talloc_free(msg); |
| gsup_tx_confirmed = true; |
| gsup_tx_expected = NULL; |
| return 0; |
| } |
| |
| static int _validate_dtap(struct msgb *msg, enum osmo_rat_type to_ran) |
| { |
| btw("DTAP --%s--> MS: %s: %s", |
| osmo_rat_type_name(to_ran), gh_type_name((void*)msg->data), |
| osmo_hexdump_nospc(msg->data, msg->len)); |
| |
| OSMO_ASSERT(dtap_tx_expected); |
| |
| /* Mask the sequence number out before comparing */ |
| msg->data[1] &= 0x3f; |
| if (!msgb_eq_data_print(msg, dtap_tx_expected->data, dtap_tx_expected->len)) |
| abort(); |
| |
| btw("DTAP matches expected message"); |
| |
| talloc_free(msg); |
| dtap_tx_confirmed = true; |
| talloc_free(dtap_tx_expected); |
| dtap_tx_expected = NULL; |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=ranap_iu_tx' */ |
| int __real_ranap_iu_tx(struct msgb *msg, uint8_t sapi); |
| int __wrap_ranap_iu_tx(struct msgb *msg, uint8_t sapi) |
| { |
| return _validate_dtap(msg, OSMO_RAT_UTRAN_IU); |
| } |
| |
| /* override, requires '-Wl,--wrap=ranap_iu_tx_release' */ |
| int __real_ranap_iu_tx_release(struct ranap_ue_conn_ctx *ctx, const struct RANAP_Cause *cause); |
| int __wrap_ranap_iu_tx_release(struct ranap_ue_conn_ctx *ctx, const struct RANAP_Cause *cause) |
| { |
| btw("Iu Release --%s--> MS", osmo_rat_type_name(OSMO_RAT_UTRAN_IU)); |
| OSMO_ASSERT(iu_release_expected); |
| iu_release_expected = false; |
| iu_release_sent = true; |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=iu_tx_common_id' */ |
| int __real_ranap_iu_tx_common_id(struct ranap_ue_conn_ctx *ue_ctx, const char *imsi); |
| int __wrap_ranap_iu_tx_common_id(struct ranap_ue_conn_ctx *ue_ctx, const char *imsi) |
| { |
| btw("Iu Common ID --%s--> MS (IMSI=%s)", osmo_rat_type_name(OSMO_RAT_UTRAN_IU), imsi); |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=a_iface_tx_dtap' */ |
| int __real_a_iface_tx_dtap(struct msgb *msg); |
| int __wrap_a_iface_tx_dtap(struct msgb *msg) |
| { |
| return _validate_dtap(msg, OSMO_RAT_GERAN_A); |
| } |
| |
| /* override, requires '-Wl,--wrap=a_iface_tx_clear_cmd' */ |
| int __real_a_iface_tx_clear_cmd(struct ran_conn *conn); |
| int __wrap_a_iface_tx_clear_cmd(struct ran_conn *conn) |
| { |
| btw("BSSAP Clear --%s--> MS", osmo_rat_type_name(OSMO_RAT_GERAN_A)); |
| OSMO_ASSERT(bssap_clear_expected); |
| bssap_clear_expected = false; |
| bssap_clear_sent = true; |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=msc_mgcp_try_call_assignment' */ |
| int __real_msc_mgcp_try_call_assignment(struct gsm_trans *trans); |
| int __wrap_msc_mgcp_try_call_assignment(struct gsm_trans *trans) |
| { |
| log("MS <--Call Assignment-- MSC: subscr=%s callref=0x%x", |
| vlr_subscr_name(trans->vsub), trans->callref); |
| return 0; |
| } |
| |
| struct gsm_mncc *on_call_release_mncc_sends_to_cc_data = NULL; |
| |
| /* override, requires '-Wl,--wrap=msc_mgcp_call_release' */ |
| void __real_msc_mgcp_call_release(struct gsm_trans *trans); |
| void __wrap_msc_mgcp_call_release(struct gsm_trans *trans) |
| { |
| log("MS <--Call Release-- MSC: subscr=%s callref=0x%x", |
| vlr_subscr_name(trans->vsub), trans->callref); |
| if (on_call_release_mncc_sends_to_cc_data) { |
| mncc_tx_to_cc(trans->net, on_call_release_mncc_sends_to_cc_data->msg_type, |
| on_call_release_mncc_sends_to_cc_data); |
| on_call_release_mncc_sends_to_cc_data = NULL; |
| } |
| } |
| |
| static int fake_vlr_tx_lu_acc(void *msc_conn_ref, uint32_t send_tmsi) |
| { |
| struct ran_conn *conn = msc_conn_ref; |
| if (send_tmsi == GSM_RESERVED_TMSI) |
| btw("sending LU Accept for %s", vlr_subscr_name(conn->vsub)); |
| else |
| btw("sending LU Accept for %s, with TMSI 0x%08x", |
| vlr_subscr_name(conn->vsub), send_tmsi); |
| lu_result_sent |= RES_ACCEPT; |
| return 0; |
| } |
| |
| static int fake_vlr_tx_lu_rej(void *msc_conn_ref, enum gsm48_reject_value cause) |
| { |
| struct ran_conn *conn = msc_conn_ref; |
| btw("sending LU Reject for %s, cause %u", vlr_subscr_name(conn->vsub), cause); |
| lu_result_sent |= RES_REJECT; |
| return 0; |
| } |
| |
| static int fake_vlr_tx_cm_serv_acc(void *msc_conn_ref) |
| { |
| struct ran_conn *conn = msc_conn_ref; |
| btw("sending CM Service Accept for %s", vlr_subscr_name(conn->vsub)); |
| cm_service_result_sent |= RES_ACCEPT; |
| return 0; |
| } |
| |
| static int fake_vlr_tx_cm_serv_rej(void *msc_conn_ref, enum gsm48_reject_value cause) |
| { |
| struct ran_conn *conn = msc_conn_ref; |
| btw("sending CM Service Reject for %s, cause: %s", |
| vlr_subscr_name(conn->vsub), gsm48_reject_value_name(cause)); |
| cm_service_result_sent |= RES_REJECT; |
| return 0; |
| } |
| |
| static int fake_vlr_tx_auth_req(void *msc_conn_ref, struct vlr_auth_tuple *at, |
| bool send_autn) |
| { |
| struct ran_conn *conn = msc_conn_ref; |
| char *hex; |
| bool ok = true; |
| btw("sending %s Auth Request for %s: tuple use_count=%d key_seq=%d auth_types=0x%x and...", |
| send_autn? "UMTS" : "GSM", vlr_subscr_name(conn->vsub), |
| at->use_count, at->key_seq, at->vec.auth_types); |
| |
| hex = osmo_hexdump_nospc((void*)&at->vec.rand, sizeof(at->vec.rand)); |
| btw("...rand=%s", hex); |
| if (!auth_request_expect_rand |
| || strcmp(hex, auth_request_expect_rand) != 0) { |
| ok = false; |
| log("FAILURE: expected rand=%s", |
| auth_request_expect_rand ? auth_request_expect_rand : "-"); |
| } |
| |
| if (send_autn) { |
| hex = osmo_hexdump_nospc((void*)&at->vec.autn, sizeof(at->vec.autn)); |
| btw("...autn=%s", hex); |
| if (!auth_request_expect_autn |
| || strcmp(hex, auth_request_expect_autn) != 0) { |
| ok = false; |
| log("FAILURE: expected autn=%s", |
| auth_request_expect_autn ? auth_request_expect_autn : "-"); |
| } |
| } else if (auth_request_expect_autn) { |
| ok = false; |
| log("FAILURE: no AUTN sent, expected AUTN = %s", |
| auth_request_expect_autn); |
| } |
| |
| if (send_autn) |
| btw("...expecting res=%s", |
| osmo_hexdump_nospc((void*)&at->vec.res, at->vec.res_len)); |
| else |
| btw("...expecting sres=%s", |
| osmo_hexdump_nospc((void*)&at->vec.sres, sizeof(at->vec.sres))); |
| |
| auth_request_sent = ok; |
| return 0; |
| } |
| |
| static int fake_vlr_tx_auth_rej(void *msc_conn_ref) |
| { |
| struct ran_conn *conn = msc_conn_ref; |
| btw("sending Auth Reject for %s", vlr_subscr_name(conn->vsub)); |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=a_iface_tx_cipher_mode' */ |
| int __real_a_iface_tx_cipher_mode(const struct ran_conn *conn, |
| struct gsm0808_encrypt_info *ei, int include_imeisv); |
| int __wrap_a_iface_tx_cipher_mode(const struct ran_conn *conn, |
| struct gsm0808_encrypt_info *ei, int include_imeisv) |
| { |
| int i; |
| btw("sending Ciphering Mode Command for %s: include_imeisv=%d", |
| vlr_subscr_name(conn->vsub), include_imeisv); |
| for (i = 0; i < ei->perm_algo_len; i++) |
| btw("...perm algo: A5/%u", ei->perm_algo[i] - 1); |
| OSMO_ASSERT(ei->key_len <= sizeof(ei->key)); |
| btw("...key: %s", osmo_hexdump_nospc(ei->key, ei->key_len)); |
| cipher_mode_cmd_sent = true; |
| cipher_mode_cmd_sent_with_imeisv = include_imeisv; |
| |
| if (!cipher_mode_expect_kc |
| || strcmp(cipher_mode_expect_kc, osmo_hexdump_nospc(ei->key, ei->key_len))) { |
| log("FAILURE: expected kc=%s", cipher_mode_expect_kc ? : "NULL"); |
| OSMO_ASSERT(false); |
| } |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=ranap_iu_tx_sec_mode_cmd' */ |
| int __real_ranap_iu_tx_sec_mode_cmd(struct ranap_ue_conn_ctx *uectx, struct osmo_auth_vector *vec, |
| int send_ck, int new_key); |
| int __wrap_ranap_iu_tx_sec_mode_cmd(struct ranap_ue_conn_ctx *uectx, struct osmo_auth_vector *vec, |
| int send_ck, int new_key) |
| { |
| btw("sending SecurityModeControl for UE ctx %u send_ck=%d new_key=%d", |
| uectx->conn_id, send_ck, new_key); |
| btw("...ik=%s", osmo_hexdump_nospc(vec->ik, sizeof(vec->ik))); |
| if (send_ck) |
| btw("...ck=%s", osmo_hexdump_nospc(vec->ck, sizeof(vec->ck))); |
| security_mode_ctrl_sent = true; |
| if (!security_mode_expect_ik |
| || strcmp(security_mode_expect_ik, osmo_hexdump_nospc(vec->ik, sizeof(vec->ik)))) { |
| log("FAILURE: expected ik=%s", security_mode_expect_ik ? : "NULL"); |
| OSMO_ASSERT(false); |
| } |
| if (((!!send_ck) != (!!security_mode_expect_ck)) |
| || (security_mode_expect_ck |
| && strcmp(security_mode_expect_ck, osmo_hexdump_nospc(vec->ck, sizeof(vec->ck))))) { |
| log("FAILURE: expected ck=%s", security_mode_expect_ck ? : "NULL"); |
| OSMO_ASSERT(false); |
| } |
| return 0; |
| } |
| |
| extern int msc_vlr_set_ciph_mode(void *msc_conn_ref, bool umts_aka, bool retrieve_imeisv); |
| |
| static int fake_vlr_tx_ciph_mode_cmd(void *msc_conn_ref, bool umts_aka, bool retrieve_imeisv) |
| { |
| int rc; |
| #ifndef BUILD_IU |
| /* If we built without support for IU, fake the IU part here. The root cause is that we don't |
| * have differing sets of expected outputs for --enable-iu and --disable-iu. */ |
| struct ran_conn *conn = msc_conn_ref; |
| if (conn->via_ran == OSMO_RAT_UTRAN_IU) { |
| DEBUGP(DMM, "-> SECURITY MODE CONTROL %s\n", vlr_subscr_name(conn->vsub)); |
| rc = __wrap_ranap_iu_tx_sec_mode_cmd(conn->iu.ue_ctx, &conn->vsub->last_tuple->vec, |
| 0, 1); |
| } else |
| #endif |
| rc = msc_vlr_set_ciph_mode(msc_conn_ref, umts_aka, retrieve_imeisv); |
| if (rc) |
| btw("ERROR sending ciphering mode command: rc=%d", rc); |
| return rc; |
| } |
| |
| void ms_sends_security_mode_complete() |
| { |
| OSMO_ASSERT(g_conn); |
| OSMO_ASSERT(g_conn->via_ran == OSMO_RAT_UTRAN_IU); |
| OSMO_ASSERT(g_conn->iu.ue_ctx); |
| ran_conn_rx_sec_mode_compl(g_conn); |
| } |
| |
| void bss_sends_clear_complete() |
| { |
| btw("BSS sends BSSMAP Clear Complete"); |
| OSMO_ASSERT(g_conn); |
| OSMO_ASSERT(g_conn->via_ran == OSMO_RAT_GERAN_A); |
| ran_conn_rx_bssmap_clear_complete(g_conn); |
| } |
| |
| void rnc_sends_release_complete() |
| { |
| btw("RNC sends Iu Release Complete"); |
| OSMO_ASSERT(g_conn); |
| OSMO_ASSERT(g_conn->via_ran == OSMO_RAT_UTRAN_IU); |
| ran_conn_rx_iu_release_complete(g_conn); |
| } |
| |
| const struct timeval fake_time_start_time = { 123, 456 }; |
| |
| void fake_time_start() |
| { |
| struct timespec *clock_override; |
| |
| osmo_gettimeofday_override_time = fake_time_start_time; |
| osmo_gettimeofday_override = true; |
| clock_override = osmo_clock_override_gettimespec(CLOCK_MONOTONIC); |
| OSMO_ASSERT(clock_override); |
| clock_override->tv_sec = fake_time_start_time.tv_sec; |
| clock_override->tv_nsec = fake_time_start_time.tv_usec * 1000; |
| osmo_clock_override_enable(CLOCK_MONOTONIC, true); |
| fake_time_passes(0, 0); |
| } |
| |
| static void check_talloc(void *msgb_ctx, void *msc_vlr_tests_ctx) |
| { |
| /* Verifying that the msgb context is empty */ |
| talloc_report_full(msgb_ctx, stderr); |
| /* Expecting these to stick around in msc_vlr_tests_ctx: |
| * talloc_total_blocks(tall_bsc_ctx) == 13 |
| * full talloc report on 'msc_vlr_tests_ctx' (total 4638 bytes in 13 blocks) |
| * struct osmo_gsup_client contains 256 bytes in 1 blocks (ref 0) 0x61300000dd20 |
| * struct gsm_network contains 2983 bytes in 5 blocks (ref 0) 0x61400000fea0 |
| * struct vlr_instance contains 320 bytes in 2 blocks (ref 0) 0x61300000dee0 |
| * struct ipaccess_unit contains 64 bytes in 1 blocks (ref 0) 0x60e0000244c0 |
| * no_gsup_server contains 15 bytes in 1 blocks (ref 0) 0x60b00000af40 |
| * rate_ctr.c:234 contains 2352 bytes in 1 blocks (ref 0) 0x61e00000f0e0 |
| * logging contains 1399 bytes in 5 blocks (ref 0) 0x60b00000aff0 |
| * struct log_target contains 238 bytes in 2 blocks (ref 0) 0x61200000bf20 |
| * struct log_category contains 70 bytes in 1 blocks (ref 0) 0x60f00000efb0 |
| * struct log_info contains 1160 bytes in 2 blocks (ref 0) 0x60d00000cfd0 |
| * struct log_info_cat contains 1120 bytes in 1 blocks (ref 0) 0x61a00001f2e0 |
| * msgb contains 0 bytes in 1 blocks (ref 0) 0x60800000bf80 |
| * (That's 13 counting the root ctx) |
| */ |
| fprintf(stderr, "talloc_total_blocks(tall_bsc_ctx) == %zu\n", |
| talloc_total_blocks(msc_vlr_tests_ctx)); |
| if (talloc_total_blocks(msc_vlr_tests_ctx) != 13) |
| talloc_report_full(msc_vlr_tests_ctx, stderr); |
| fprintf(stderr, "\n"); |
| } |
| |
| static struct { |
| bool verbose; |
| int run_test_nr; |
| } cmdline_opts = { |
| .verbose = false, |
| .run_test_nr = -1, |
| }; |
| |
| static void print_help(const char *program) |
| { |
| printf("Usage:\n" |
| " %s [-v] [N [N...]]\n" |
| "Options:\n" |
| " -h --help show this text.\n" |
| " -v --verbose print source file and line numbers\n" |
| " N run only the Nth test (first test is N=1)\n", |
| program |
| ); |
| } |
| |
| static void handle_options(int argc, char **argv) |
| { |
| while (1) { |
| int option_index = 0, c; |
| static struct option long_options[] = { |
| {"help", 0, 0, 'h'}, |
| {"verbose", 1, 0, 'v'}, |
| {0, 0, 0, 0} |
| }; |
| |
| c = getopt_long(argc, argv, "hv", |
| long_options, &option_index); |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case 'h': |
| print_help(argv[0]); |
| exit(0); |
| case 'v': |
| cmdline_opts.verbose = true; |
| break; |
| default: |
| /* catch unknown options *as well as* missing arguments. */ |
| fprintf(stderr, "Error in command line options. Exiting.\n"); |
| exit(-1); |
| break; |
| } |
| } |
| } |
| |
| void *msgb_ctx = NULL; |
| |
| static void run_tests(int nr) |
| { |
| int test_nr; |
| |
| check_talloc(msgb_ctx, msc_vlr_tests_ctx); |
| |
| nr--; /* arg's first test is 1, in here it's 0 */ |
| for (test_nr = 0; msc_vlr_tests[test_nr]; test_nr++) { |
| if (nr >= 0 && test_nr != nr) |
| continue; |
| |
| if (cmdline_opts.verbose) |
| fprintf(stderr, "(test nr %d)\n", test_nr + 1); |
| |
| msc_vlr_tests[test_nr](); |
| |
| if (cmdline_opts.verbose) |
| fprintf(stderr, "(test nr %d)\n", test_nr + 1); |
| |
| check_talloc(msgb_ctx, msc_vlr_tests_ctx); |
| } |
| } |
| |
| struct gsm_network *test_net(void *ctx) |
| { |
| struct gsm_network *net = gsm_network_init(ctx, mncc_recv); |
| |
| net->gsup_server_addr_str = talloc_strdup(net, "no_gsup_server"); |
| net->gsup_server_port = 0; |
| |
| OSMO_ASSERT(msc_vlr_alloc(net) == 0); |
| OSMO_ASSERT(msc_vlr_start(net) == 0); |
| OSMO_ASSERT(net->vlr); |
| OSMO_ASSERT(net->vlr->gsup_client); |
| |
| net->vlr->ops.tx_lu_acc = fake_vlr_tx_lu_acc; |
| net->vlr->ops.tx_lu_rej = fake_vlr_tx_lu_rej; |
| net->vlr->ops.tx_cm_serv_acc = fake_vlr_tx_cm_serv_acc; |
| net->vlr->ops.tx_cm_serv_rej = fake_vlr_tx_cm_serv_rej; |
| net->vlr->ops.tx_auth_req = fake_vlr_tx_auth_req; |
| net->vlr->ops.tx_auth_rej = fake_vlr_tx_auth_rej; |
| net->vlr->ops.set_ciph_mode = fake_vlr_tx_ciph_mode_cmd; |
| |
| return net; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| handle_options(argc, argv); |
| |
| msc_vlr_tests_ctx = talloc_named_const(NULL, 0, "msc_vlr_tests_ctx"); |
| msgb_ctx = msgb_talloc_ctx_init(msc_vlr_tests_ctx, 0); |
| osmo_init_logging2(msc_vlr_tests_ctx, &info); |
| |
| _log_lines = cmdline_opts.verbose; |
| |
| OSMO_ASSERT(osmo_stderr_target); |
| log_set_use_color(osmo_stderr_target, 0); |
| log_set_print_timestamp(osmo_stderr_target, 0); |
| log_set_print_filename(osmo_stderr_target, 0); |
| log_set_print_category(osmo_stderr_target, 1); |
| log_set_category_filter(osmo_stderr_target, DLSMS, 1, LOGL_DEBUG); |
| |
| if (cmdline_opts.verbose) { |
| log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_BASENAME); |
| log_set_print_filename_pos(osmo_stderr_target, LOG_FILENAME_POS_LINE_END); |
| log_set_use_color(osmo_stderr_target, 1); |
| log_set_print_level(osmo_stderr_target, 1); |
| } |
| |
| net = test_net(msc_vlr_tests_ctx); |
| |
| osmo_fsm_log_addr(false); |
| |
| ran_conn_init(); |
| |
| clear_vlr(); |
| |
| if (optind >= argc) |
| run_tests(-1); |
| else { |
| int arg; |
| long int nr; |
| for (arg = optind; arg < argc; arg++) { |
| errno = 0; |
| nr = strtol(argv[arg], NULL, 10); |
| if (errno) { |
| fprintf(stderr, "Invalid argument: %s\n", |
| argv[arg]); |
| exit(1); |
| } |
| |
| run_tests(nr); |
| } |
| } |
| |
| printf("Done\n"); |
| |
| check_talloc(msgb_ctx, msc_vlr_tests_ctx); |
| return 0; |
| } |