diff options
Diffstat (limited to 'tests/gbproxy/gbproxy_test.c')
| -rw-r--r-- | tests/gbproxy/gbproxy_test.c | 4971 |
1 files changed, 0 insertions, 4971 deletions
diff --git a/tests/gbproxy/gbproxy_test.c b/tests/gbproxy/gbproxy_test.c deleted file mode 100644 index 577daa95e..000000000 --- a/tests/gbproxy/gbproxy_test.c +++ /dev/null @@ -1,4971 +0,0 @@ -/* test routines for gbproxy - * send NS messages to the gbproxy and dumps what happens - * (C) 2013 by sysmocom s.f.m.c. GmbH - * Author: Jacob Erlbeck <jerlbeck@sysmocom.de> - */ - -#undef _GNU_SOURCE -#define _GNU_SOURCE - -#include <stdio.h> -#include <stdlib.h> -#include <stdint.h> -#include <string.h> -#include <getopt.h> -#include <dlfcn.h> -#include <time.h> -#include <sys/types.h> -#include <sys/socket.h> - -#include <osmocom/core/msgb.h> -#include <osmocom/core/application.h> -#include <osmocom/core/utils.h> -#include <osmocom/core/logging.h> -#include <osmocom/core/talloc.h> -#include <osmocom/core/signal.h> -#include <osmocom/core/rate_ctr.h> -#include <osmocom/gsm/tlv.h> -#include <osmocom/gsm/gsm_utils.h> -#include <osmocom/gsm/protocol/gsm_04_08_gprs.h> -#include <osmocom/gprs/gprs_msgb.h> -#include <osmocom/gprs/gprs_ns.h> -#include <osmocom/gprs/gprs_bssgp.h> - -#include <openbsc/gb_proxy.h> -#include <openbsc/gprs_utils.h> -#include <openbsc/gprs_llc.h> -#include <openbsc/gprs_gb_parse.h> -#include <openbsc/debug.h> - -#include <openssl/rand.h> - -#define REMOTE_BSS_ADDR 0x01020304 -#define REMOTE_SGSN_ADDR 0x05060708 - -#define SGSN_NSEI 0x0100 - -#define REMOTE_SGSN2_ADDR 0x15161718 -#define SGSN2_NSEI 0x0102 - -#define MATCH_ANY (-1) - -struct gbproxy_config gbcfg = {0}; - -struct llist_head *received_messages = NULL; - -/* override, requires '-Wl,--wrap=RAND_bytes' */ -int __real_RAND_bytes(unsigned char *buf, int num); -int mock_RAND_bytes(unsigned char *buf, int num); -int (*RAND_bytes_cb)(unsigned char *, int) = - &mock_RAND_bytes; - -int __wrap_RAND_bytes(unsigned char *buf, int num) -{ - return (*RAND_bytes_cb)(buf, num); -} - -static int rand_seq_num = 0; -int mock_RAND_bytes(unsigned char *buf, int num) -{ - uint32_t val; - - OSMO_ASSERT(num == sizeof(val)); - OSMO_ASSERT(__real_RAND_bytes(buf, num) == 1); - - val = 0x00dead00 + rand_seq_num; - - rand_seq_num++; - - memcpy(buf, &val, num); - - return 1; -} - -static void cleanup_test() -{ - rand_seq_num = 0; -} - -static int dump_global(FILE *stream, int indent) -{ - unsigned int i; - const struct rate_ctr_group_desc *desc; - int rc; - - rc = fprintf(stream, "%*sGbproxy global:\n", indent, ""); - if (rc < 0) - return rc; - - desc = gbcfg.ctrg->desc; - - for (i = 0; i < desc->num_ctr; i++) { - struct rate_ctr *ctr = &gbcfg.ctrg->ctr[i]; - if (ctr->current) { - rc = fprintf(stream, "%*s %s: %llu\n", - indent, "", - desc->ctr_desc[i].description, - (long long)ctr->current); - - if (rc < 0) - return rc; - } - } - - return 0; -} - -static int dump_peers(FILE *stream, int indent, time_t now, - struct gbproxy_config *cfg) -{ - struct gbproxy_peer *peer; - struct gprs_ra_id raid; - unsigned int i; - const struct rate_ctr_group_desc *desc; - int rc; - - rc = fprintf(stream, "%*sPeers:\n", indent, ""); - if (rc < 0) - return rc; - - llist_for_each_entry(peer, &cfg->bts_peers, list) { - struct gbproxy_link_info *link_info; - struct gbproxy_patch_state *state = &peer->patch_state; - gsm48_parse_ra(&raid, peer->ra); - - rc = fprintf(stream, "%*s NSEI %u, BVCI %u, %sblocked, " - "RAI %u-%u-%u-%u\n", - indent, "", - peer->nsei, peer->bvci, - peer->blocked ? "" : "not ", - raid.mcc, raid.mnc, raid.lac, raid.rac); - - if (rc < 0) - return rc; - - desc = peer->ctrg->desc; - - for (i = 0; i < desc->num_ctr; i++) { - struct rate_ctr *ctr = &peer->ctrg->ctr[i]; - if (ctr->current) { - rc = fprintf(stream, "%*s %s: %llu\n", - indent, "", - desc->ctr_desc[i].description, - (long long)ctr->current); - - if (rc < 0) - return rc; - } - } - - fprintf(stream, "%*s TLLI-Cache: %d\n", - indent, "", state->logical_link_count); - llist_for_each_entry(link_info, &state->logical_links, list) { - char mi_buf[200]; - time_t age = now ? now - link_info->timestamp : 0; - int stored_msgs = 0; - struct llist_head *iter; - enum gbproxy_match_id match_id; - llist_for_each(iter, &link_info->stored_msgs) - stored_msgs++; - - if (link_info->imsi_len > 0) { - snprintf(mi_buf, sizeof(mi_buf), "(invalid)"); - gsm48_mi_to_string(mi_buf, sizeof(mi_buf), - link_info->imsi, - link_info->imsi_len); - } else { - snprintf(mi_buf, sizeof(mi_buf), "(none)"); - } - fprintf(stream, "%*s TLLI %08x", - indent, "", link_info->tlli.current); - if (link_info->tlli.assigned) - fprintf(stream, "/%08x", link_info->tlli.assigned); - if (link_info->sgsn_tlli.current) { - fprintf(stream, " -> %08x", - link_info->sgsn_tlli.current); - if (link_info->sgsn_tlli.assigned) - fprintf(stream, "/%08x", - link_info->sgsn_tlli.assigned); - } - fprintf(stream, ", IMSI %s, AGE %d", - mi_buf, (int)age); - - if (stored_msgs) - fprintf(stream, ", STORED %d", stored_msgs); - - for (match_id = 0; match_id < ARRAY_SIZE(cfg->matches); - ++match_id) { - if (cfg->matches[match_id].enable && - link_info->is_matching[match_id]) { - fprintf(stream, ", IMSI matches"); - break; - } - } - - if (link_info->imsi_acq_pending) - fprintf(stream, ", IMSI acquisition in progress"); - - if (cfg->route_to_sgsn2) - fprintf(stream, ", SGSN NSEI %d", - link_info->sgsn_nsei); - - if (link_info->is_deregistered) - fprintf(stream, ", DE-REGISTERED"); - - rc = fprintf(stream, "\n"); - if (rc < 0) - return rc; - } - } - - return 0; -} - -const uint8_t *convert_ra(struct gprs_ra_id *raid) -{ - static uint8_t buf[6]; - gsm48_construct_ra(buf, raid); - return buf; -} - -/* DTAP - Attach Request */ -static const unsigned char dtap_attach_req[] = { - 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, - 0x05, 0xf4, 0xfb, 0xc5, 0x46, 0x79, 0x11, 0x22, - 0x33, 0x40, 0x50, 0x60, 0x19, 0x18, 0xb3, 0x43, - 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60, 0x80, 0x9a, - 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8, - 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00, -}; - -/* DTAP - Attach Request (invalid RAI) */ -static const unsigned char dtap_attach_req2[] = { - 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, - 0x05, 0xf4, 0xfb, 0x00, 0xbe, 0xef, 0x99, 0x99, - 0x99, 0x40, 0x50, 0x60, 0x19, 0x18, 0xb3, 0x43, - 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60, 0x80, 0x9a, - 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8, - 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00, -}; - -/* DTAP - Attach Request (P-TMSI 0x3f32b700) */ -static const unsigned char dtap_attach_req3[] = { - 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, - 0x05, 0xf4, 0xef, 0xe2, 0xb7, 0x00, 0x11, 0x22, - 0x33, 0x40, 0x50, 0x60, 0x19, 0x18, 0xb3, 0x43, - 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60, 0x80, 0x9a, - 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8, - 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00, -}; - -/* DTAP - Attach Request (IMSI 12131415161718) */ -static const unsigned char dtap_attach_req4[] = { - 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, - 0x08, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, - 0x18, 0x11, 0x22, 0x33, 0x40, 0x50, 0x60, 0x19, - 0x18, 0xb3, 0x43, 0x2b, 0x25, 0x96, 0x62, 0x00, - 0x60, 0x80, 0x9a, 0xc2, 0xc6, 0x62, 0x00, 0x60, - 0x80, 0xba, 0xc8, 0xc6, 0x62, 0x00, 0x60, 0x80, - 0x00, -}; - -/* DTAP - Identity Request */ -static const unsigned char dtap_identity_req[] = { - 0x08, 0x15, 0x01 -}; - -/* DTAP - Identity Response */ -static const unsigned char dtap_identity_resp[] = { - 0x08, 0x16, 0x08, 0x11, 0x12, 0x13, 0x14, 0x15, - 0x16, 0x17, 0x18 -}; - -/* DTAP - Identity Response, IMSI 2 */ -static const unsigned char dtap_identity2_resp[] = { - 0x08, 0x16, 0x08, 0x11, 0x12, 0x99, 0x99, 0x99, - 0x16, 0x17, 0x18 -}; - -/* DTAP - Identity Response, IMSI 3 */ -static const unsigned char dtap_identity3_resp[] = { - 0x08, 0x16, 0x08, 0x11, 0x12, 0x99, 0x99, 0x99, - 0x26, 0x27, 0x28 -}; - -/* DTAP - Attach Accept */ -static const unsigned char dtap_attach_acc[] = { - 0x08, 0x02, 0x01, 0x49, 0x04, 0x21, 0x63, 0x54, - 0x40, 0x50, 0x60, 0x19, 0xcd, 0xd7, 0x08, 0x17, - 0x16, 0x18, 0x05, 0xf4, 0xef, 0xe2, 0xb7, 0x00 -}; - -/* DTAP - Attach Accept, P-TMSI 2 */ -static const unsigned char dtap_attach_acc2[] = { - 0x08, 0x02, 0x01, 0x49, 0x04, 0x21, 0x63, 0x54, - 0x40, 0x50, 0x60, 0x19, 0xcd, 0xd7, 0x08, 0x17, - 0x16, 0x18, 0x05, 0xf4, 0xe0, 0x98, 0x76, 0x54 -}; - -/* DTAP - Attach Complete */ -static const unsigned char dtap_attach_complete[] = { - 0x08, 0x03 -}; - -/* DTAP - Attach Reject (GPRS services not allowed) */ -static const unsigned char dtap_attach_rej7[] = { - 0x08, 0x04, 0x07 -}; - -/* DTAP - GMM Information */ -static const unsigned char dtap_gmm_information[] = { - 0x08, 0x21 -}; - -/* DTAP - Routing Area Update Request */ -static const unsigned char dtap_ra_upd_req[] = { - 0x08, 0x08, 0x10, 0x11, 0x22, 0x33, 0x40, 0x50, - 0x60, 0x1d, 0x19, 0x13, 0x42, 0x33, 0x57, 0x2b, - 0xf7, 0xc8, 0x48, 0x02, 0x13, 0x48, 0x50, 0xc8, - 0x48, 0x02, 0x14, 0x48, 0x50, 0xc8, 0x48, 0x02, - 0x17, 0x49, 0x10, 0xc8, 0x48, 0x02, 0x00, 0x19, - 0x8b, 0xb2, 0x92, 0x17, 0x16, 0x27, 0x07, 0x04, - 0x31, 0x02, 0xe5, 0xe0, 0x32, 0x02, 0x20, 0x00 -}; - -/* DTAP - Routing Area Update Accept */ -static const unsigned char dtap_ra_upd_acc[] = { - 0x08, 0x09, 0x00, 0x49, 0x21, 0x63, 0x54, - 0x40, 0x50, 0x60, 0x19, 0x54, 0xab, 0xb3, 0x18, - 0x05, 0xf4, 0xef, 0xe2, 0xb7, 0x00, 0x17, 0x16, -}; - -/* DTAP - Routing Area Update Accept, P-TMSI 2 */ -static const unsigned char dtap_ra_upd_acc2[] = { - 0x08, 0x09, 0x00, 0x49, 0x21, 0x63, 0x54, - 0x40, 0x50, 0x60, 0x19, 0x54, 0xab, 0xb3, 0x18, - 0x05, 0xf4, 0xe0, 0x98, 0x76, 0x54, 0x17, 0x16, -}; - -/* DTAP - Routing Area Update Accept, P-TMSI 3 */ -static const unsigned char dtap_ra_upd_acc3[] = { - 0x08, 0x09, 0x00, 0x49, 0x21, 0x63, 0x54, - 0x40, 0x50, 0x60, 0x19, 0x54, 0xab, 0xb3, 0x18, - 0x05, 0xf4, 0xe0, 0x54, 0x32, 0x10, 0x17, 0x16, -}; - -/* DTAP - Routing Area Update Complete */ -static const unsigned char dtap_ra_upd_complete[] = { - 0x08, 0x0a -}; - -/* DTAP - Routing Area Update Reject */ -/* cause = 10 ("Implicitly detached"), force_standby = 0 */ -static const unsigned char dtap_ra_upd_rej[] = { - 0x08, 0x0b, 0x0a, 0x00, -}; - -/* DTAP - Activate PDP Context Request */ -static const unsigned char dtap_act_pdp_ctx_req[] = { - 0x0a, 0x41, 0x05, 0x03, 0x0c, 0x00, - 0x00, 0x1f, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x02, 0x01, 0x21, 0x28, 0x03, - 0x02, 0x61, 0x62, 0x27, 0x14, 0x80, 0x80, 0x21, - 0x10, 0x01, 0x00, 0x00, 0x10, 0x81, 0x06, 0x00, - 0x00, 0x00, 0x00, 0x83, 0x06, 0x00, 0x00, 0x00, - 0x00 -}; - -/* DTAP - Detach Request (MO) */ -/* normal detach, power_off = 1 */ -static const unsigned char dtap_detach_po_req[] = { - 0x08, 0x05, 0x09, 0x18, 0x05, 0xf4, 0xef, 0xe2, - 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb -}; - -/* DTAP - Detach Request (MO) */ -/* normal detach, power_off = 0 */ -static const unsigned char dtap_detach_req[] = { - 0x08, 0x05, 0x01, 0x18, 0x05, 0xf4, 0xef, 0xe2, - 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb -}; - -/* DTAP - Detach Accept (MO) */ -static const unsigned char dtap_detach_acc[] = { - 0x08, 0x06, 0x00 -}; - -/* DTAP - Detach Request (MT) */ -/* normal detach, reattach required, implicitly detached */ -static const unsigned char dtap_mt_detach_rea_req[] = { - 0x08, 0x05, 0x01, 0x25, 0x0a -}; - -/* DTAP - Detach Request (MT) */ -/* normal detach, reattach not required, implicitly detached */ -static const unsigned char dtap_mt_detach_req[] = { - 0x08, 0x05, 0x02, 0x25, 0x0a -}; - -/* DTAP - Detach Accept (MT) */ -static const unsigned char dtap_mt_detach_acc[] = { - 0x08, 0x06 -}; - -/* GPRS-LLC - SAPI: LLGMM, U, XID */ -static const unsigned char llc_u_xid_ul[] = { - 0x41, 0xfb, 0x01, 0x00, 0x0e, 0x00, 0x64, 0x11, - 0x05, 0x16, 0x01, 0x90, 0x66, 0xb3, 0x28 -}; - -/* GPRS-LLC - SAPI: LLGMM, U, XID */ -static const unsigned char llc_u_xid_dl[] = { - 0x41, 0xfb, 0x30, 0x84, 0x10, 0x61, 0xb6, 0x64, - 0xe4, 0xa9, 0x1a, 0x9e -}; - -/* GPRS-LLC - SAPI: LL11, UI, NSAPI 5, DNS query */ -static const unsigned char llc_ui_ll11_dns_query_ul[] = { - 0x0b, 0xc0, 0x01, 0x65, 0x00, 0x00, 0x00, 0x45, - 0x00, 0x00, 0x38, 0x95, 0x72, 0x00, 0x00, 0x45, - 0x11, 0x20, 0x85, 0x0a, 0xc0, 0x07, 0xe4, 0xac, - 0x10, 0x01, 0x0a, 0xad, 0xab, 0x00, 0x35, 0x00, - 0x24, 0x0e, 0x1c, 0x3b, 0xe0, 0x01, 0x00, 0x00, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - 0x6d, 0x05, 0x68, 0x65, 0x69, 0x73, 0x65, 0x02, - 0x64, 0x65, 0x00, 0x00, 0x01, 0x00, 0x01, 0x47, - 0x8f, 0x07 -}; - -/* GPRS-LLC - SAPI: LL11, UI, NSAPI 5, DNS query */ -static const unsigned char llc_ui_ll11_dns_resp_dl[] = { - 0x4b, 0xc0, 0x01, 0x65, 0x00, 0x00, 0x00, 0x45, - 0x00, 0x00, 0xc6, 0x00, 0x00, 0x40, 0x00, 0x3e, - 0x11, 0x7c, 0x69, 0xac, 0x10, 0x01, 0x0a, 0x0a, - 0xc0, 0x07, 0xe4, 0x00, 0x35, 0xad, 0xab, 0x00, - 0xb2, 0x74, 0x4e, 0x3b, 0xe0, 0x81, 0x80, 0x00, - 0x01, 0x00, 0x01, 0x00, 0x05, 0x00, 0x00, 0x01, - 0x6d, 0x05, 0x68, 0x65, 0x69, 0x73, 0x65, 0x02, - 0x64, 0x65, 0x00, 0x00, 0x01, 0x00, 0x01, 0xc0, - 0x0c, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x0e, - 0x10, 0x00, 0x04, 0xc1, 0x63, 0x90, 0x58, 0xc0, - 0x0e, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, - 0x10, 0x00, 0x16, 0x03, 0x6e, 0x73, 0x32, 0x0c, - 0x70, 0x6f, 0x70, 0x2d, 0x68, 0x61, 0x6e, 0x6e, - 0x6f, 0x76, 0x65, 0x72, 0x03, 0x6e, 0x65, 0x74, - 0x00, 0xc0, 0x0e, 0x00, 0x02, 0x00, 0x01, 0x00, - 0x00, 0x0e, 0x10, 0x00, 0x10, 0x02, 0x6e, 0x73, - 0x01, 0x73, 0x08, 0x70, 0x6c, 0x75, 0x73, 0x6c, - 0x69, 0x6e, 0x65, 0xc0, 0x14, 0xc0, 0x0e, 0x00, - 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, 0x00, - 0x05, 0x02, 0x6e, 0x73, 0xc0, 0x0e, 0xc0, 0x0e, - 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, - 0x00, 0x05, 0x02, 0x6e, 0x73, 0xc0, 0x5f, 0xc0, - 0x0e, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, - 0x10, 0x00, 0x12, 0x02, 0x6e, 0x73, 0x0c, 0x70, - 0x6f, 0x70, 0x2d, 0x68, 0x61, 0x6e, 0x6e, 0x6f, - 0x76, 0x65, 0x72, 0xc0, 0x14, 0xaa, 0xdf, 0x31 -}; - -static int gprs_process_message(struct gprs_ns_inst *nsi, const char *text, - struct sockaddr_in *peer, const unsigned char* data, - size_t data_len); - -static void send_ns_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, - enum ns_cause cause, uint16_t nsvci, uint16_t nsei) -{ - /* GPRS Network Service, PDU type: NS_RESET, - */ - unsigned char msg[12] = { - 0x02, 0x00, 0x81, 0x01, 0x01, 0x82, 0x11, 0x22, - 0x04, 0x82, 0x11, 0x22 - }; - - msg[3] = cause; - msg[6] = nsvci / 256; - msg[7] = nsvci % 256; - msg[10] = nsei / 256; - msg[11] = nsei % 256; - - gprs_process_message(nsi, "RESET", src_addr, msg, sizeof(msg)); -} - -static void send_ns_reset_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, - uint16_t nsvci, uint16_t nsei) -{ - /* GPRS Network Service, PDU type: NS_RESET_ACK, - */ - unsigned char msg[9] = { - 0x03, 0x01, 0x82, 0x11, 0x22, - 0x04, 0x82, 0x11, 0x22 - }; - - msg[3] = nsvci / 256; - msg[4] = nsvci % 256; - msg[7] = nsei / 256; - msg[8] = nsei % 256; - - gprs_process_message(nsi, "RESET_ACK", src_addr, msg, sizeof(msg)); -} - -static void send_ns_alive(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) -{ - /* GPRS Network Service, PDU type: NS_ALIVE */ - unsigned char msg[1] = { - 0x0a - }; - - gprs_process_message(nsi, "ALIVE", src_addr, msg, sizeof(msg)); -} - -static void send_ns_alive_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) -{ - /* GPRS Network Service, PDU type: NS_ALIVE_ACK */ - unsigned char msg[1] = { - 0x0b - }; - - gprs_process_message(nsi, "ALIVE_ACK", src_addr, msg, sizeof(msg)); -} - -static void send_ns_unblock(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) -{ - /* GPRS Network Service, PDU type: NS_UNBLOCK */ - unsigned char msg[1] = { - 0x06 - }; - - gprs_process_message(nsi, "UNBLOCK", src_addr, msg, sizeof(msg)); -} - -static void send_ns_unblock_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) -{ - /* GPRS Network Service, PDU type: NS_UNBLOCK_ACK */ - unsigned char msg[1] = { - 0x07 - }; - - gprs_process_message(nsi, "UNBLOCK_ACK", src_addr, msg, sizeof(msg)); -} - -static void send_ns_unitdata(struct gprs_ns_inst *nsi, const char *text, - struct sockaddr_in *src_addr, uint16_t nsbvci, - const unsigned char *bssgp_msg, size_t bssgp_msg_size) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA */ - unsigned char msg[4096] = { - 0x00, 0x00, 0x00, 0x00 - }; - - OSMO_ASSERT(bssgp_msg_size <= sizeof(msg) - 4); - - msg[2] = nsbvci / 256; - msg[3] = nsbvci % 256; - memcpy(msg + 4, bssgp_msg, bssgp_msg_size); - - gprs_process_message(nsi, text ? text : "UNITDATA", src_addr, msg, bssgp_msg_size + 4); -} - -static void send_bssgp_ul_unitdata( - struct gprs_ns_inst *nsi, const char *text, - struct sockaddr_in *src_addr, uint16_t nsbvci, uint32_t tlli, - struct gprs_ra_id *raid, uint16_t cell_id, - const uint8_t *llc_msg, size_t llc_msg_size) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA */ - /* Base Station Subsystem GPRS Protocol: UL_UNITDATA */ - unsigned char msg[4096] = { - 0x01, /* TLLI */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, - 0x08, 0x88, /* RAI */ 0x11, 0x22, 0x33, 0x40, 0x50, 0x60, - /* CELL ID */ 0x00, 0x00, 0x00, 0x80, 0x0e, /* LLC LEN */ 0x00, 0x00, - }; - - size_t bssgp_msg_size = 23 + llc_msg_size; - - OSMO_ASSERT(bssgp_msg_size <= sizeof(msg)); - - gsm48_construct_ra(msg + 10, raid); - msg[1] = (uint8_t)(tlli >> 24); - msg[2] = (uint8_t)(tlli >> 16); - msg[3] = (uint8_t)(tlli >> 8); - msg[4] = (uint8_t)(tlli >> 0); - msg[16] = cell_id / 256; - msg[17] = cell_id % 256; - msg[21] = llc_msg_size / 256; - msg[22] = llc_msg_size % 256; - memcpy(msg + 23, llc_msg, llc_msg_size); - - send_ns_unitdata(nsi, text ? text : "BSSGP UL UNITDATA", - src_addr, nsbvci, msg, bssgp_msg_size); -} - -static void send_bssgp_dl_unitdata( - struct gprs_ns_inst *nsi, const char *text, - struct sockaddr_in *src_addr, uint16_t nsbvci, uint32_t tlli, - int with_racap_drx, const uint8_t *imsi, size_t imsi_size, - const uint8_t *llc_msg, size_t llc_msg_size) -{ - /* Base Station Subsystem GPRS Protocol: DL_UNITDATA */ - unsigned char msg[4096] = { - 0x00, /* TLLI */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x20, - 0x16, 0x82, 0x02, 0x58, - }; - unsigned char racap_drx[] = { - 0x13, 0x99, 0x18, 0xb3, 0x43, 0x2b, 0x25, 0x96, - 0x62, 0x00, 0x60, 0x80, 0x9a, 0xc2, 0xc6, 0x62, - 0x00, 0x60, 0x80, 0xba, 0xc8, 0xc6, 0x62, 0x00, - 0x60, 0x80, 0x00, 0x0a, 0x82, 0x08, 0x02 - }; - - size_t bssgp_msg_size = 0; - - OSMO_ASSERT(51 + imsi_size + llc_msg_size <= sizeof(msg)); - - msg[1] = (uint8_t)(tlli >> 24); - msg[2] = (uint8_t)(tlli >> 16); - msg[3] = (uint8_t)(tlli >> 8); - msg[4] = (uint8_t)(tlli >> 0); - - bssgp_msg_size = 12; - - if (with_racap_drx) { - memcpy(msg + bssgp_msg_size, racap_drx, sizeof(racap_drx)); - bssgp_msg_size += sizeof(racap_drx); - } - - if (imsi) { - OSMO_ASSERT(imsi_size <= 127); - msg[bssgp_msg_size] = BSSGP_IE_IMSI; - msg[bssgp_msg_size + 1] = 0x80 | imsi_size; - memcpy(msg + bssgp_msg_size + 2, imsi, imsi_size); - bssgp_msg_size += 2 + imsi_size; - } - - if ((bssgp_msg_size % 4) != 0) { - size_t abytes = (4 - (bssgp_msg_size + 2) % 4) % 4; - msg[bssgp_msg_size] = BSSGP_IE_ALIGNMENT; - msg[bssgp_msg_size + 1] = 0x80 | abytes; - memset(msg + bssgp_msg_size + 2, 0, abytes); - bssgp_msg_size += 2 + abytes; - } - - msg[bssgp_msg_size] = BSSGP_IE_LLC_PDU; - if (llc_msg_size < 128) { - msg[bssgp_msg_size + 1] = 0x80 | llc_msg_size; - bssgp_msg_size += 2; - } else { - msg[bssgp_msg_size + 1] = llc_msg_size / 256; - msg[bssgp_msg_size + 2] = llc_msg_size % 256; - bssgp_msg_size += 3; - } - memcpy(msg + bssgp_msg_size, llc_msg, llc_msg_size); - bssgp_msg_size += llc_msg_size; - - - send_ns_unitdata(nsi, text ? text : "BSSGP DL UNITDATA", - src_addr, nsbvci, msg, bssgp_msg_size); -} - -static void send_bssgp_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, - uint16_t bvci) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA, BVCI 0 - * BSSGP RESET */ - unsigned char msg[18] = { - 0x22, 0x04, 0x82, 0x4a, - 0x2e, 0x07, 0x81, 0x08, 0x08, 0x88, 0x11, 0x22, - 0x33, 0x40, 0x50, 0x60, 0x10, 0x00 - }; - - msg[3] = bvci / 256; - msg[4] = bvci % 256; - - send_ns_unitdata(nsi, "BVC_RESET", src_addr, 0, msg, sizeof(msg)); -} - -static void send_bssgp_reset_ack(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, uint16_t bvci) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA, BVCI 0 - * BSSGP RESET_ACK */ - static unsigned char msg[5] = { - 0x23, 0x04, 0x82, 0x00, - 0x00 - }; - - msg[3] = bvci / 256; - msg[4] = bvci % 256; - - send_ns_unitdata(nsi, "BVC_RESET_ACK", src_addr, 0, msg, sizeof(msg)); -} - -static void send_bssgp_suspend(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, - uint32_t tlli, - struct gprs_ra_id *raid) -{ - /* Base Station Subsystem GPRS Protocol, BSSGP SUSPEND */ - unsigned char msg[15] = { - 0x0b, 0x1f, 0x84, /* TLLI */ 0xff, 0xff, 0xff, 0xff, 0x1b, - 0x86, /* RAI */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff - }; - - msg[3] = (uint8_t)(tlli >> 24); - msg[4] = (uint8_t)(tlli >> 16); - msg[5] = (uint8_t)(tlli >> 8); - msg[6] = (uint8_t)(tlli >> 0); - - gsm48_construct_ra(msg + 9, raid); - - send_ns_unitdata(nsi, "BVC_SUSPEND", src_addr, 0, msg, sizeof(msg)); -} - -static void send_bssgp_suspend_ack(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, - uint32_t tlli, - struct gprs_ra_id *raid) -{ - /* Base Station Subsystem GPRS Protocol, BSSGP SUSPEND ACK */ - unsigned char msg[18] = { - 0x0c, 0x1f, 0x84, /* TLLI */ 0xff, 0xff, 0xff, 0xff, 0x1b, - 0x86, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1d, - 0x81, 0x01 - }; - - msg[3] = (uint8_t)(tlli >> 24); - msg[4] = (uint8_t)(tlli >> 16); - msg[5] = (uint8_t)(tlli >> 8); - msg[6] = (uint8_t)(tlli >> 0); - - gsm48_construct_ra(msg + 9, raid); - - send_ns_unitdata(nsi, "BVC_SUSPEND_ACK", src_addr, 0, msg, sizeof(msg)); -} - -static void send_bssgp_llc_discarded(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, - uint16_t bvci, uint32_t tlli, - unsigned n_frames, unsigned n_octets) -{ - /* Base Station Subsystem GPRS Protocol: LLC-DISCARDED (0x2c) */ - unsigned char msg[] = { - 0x2c, 0x1f, 0x84, /* TLLI */ 0xff, 0xff, 0xff, 0xff, 0x0f, - 0x81, /* n frames */ 0xff, 0x04, 0x82, /* BVCI */ 0xff, 0xff, 0x25, 0x83, - /* n octets */ 0xff, 0xff, 0xff - }; - - msg[3] = (uint8_t)(tlli >> 24); - msg[4] = (uint8_t)(tlli >> 16); - msg[5] = (uint8_t)(tlli >> 8); - msg[6] = (uint8_t)(tlli >> 0); - msg[9] = (uint8_t)(n_frames); - msg[12] = (uint8_t)(bvci >> 8); - msg[13] = (uint8_t)(bvci >> 0); - msg[16] = (uint8_t)(n_octets >> 16); - msg[17] = (uint8_t)(n_octets >> 8); - msg[18] = (uint8_t)(n_octets >> 0); - - send_ns_unitdata(nsi, "LLC_DISCARDED", src_addr, 0, msg, sizeof(msg)); -} - -static void send_bssgp_paging(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, - const uint8_t *imsi, size_t imsi_size, - struct gprs_ra_id *raid, uint32_t ptmsi) -{ - /* Base Station Subsystem GPRS Protocol, BSSGP SUSPEND */ - unsigned char msg[100] = { - 0x06, - }; - - const unsigned char drx_ie[] = {0x0a, 0x82, 0x07, 0x04}; - const unsigned char qos_ie[] = {0x18, 0x83, 0x00, 0x00, 0x00}; - - size_t bssgp_msg_size = 1; - - if (imsi) { - OSMO_ASSERT(imsi_size <= 127); - msg[bssgp_msg_size] = BSSGP_IE_IMSI; - msg[bssgp_msg_size + 1] = 0x80 | imsi_size; - memcpy(msg + bssgp_msg_size + 2, imsi, imsi_size); - bssgp_msg_size += 2 + imsi_size; - } - - memcpy(msg + bssgp_msg_size, drx_ie, sizeof(drx_ie)); - bssgp_msg_size += sizeof(drx_ie); - - if (raid) { - msg[bssgp_msg_size] = BSSGP_IE_ROUTEING_AREA; - msg[bssgp_msg_size+1] = 0x86; - gsm48_construct_ra(msg + bssgp_msg_size + 2, raid); - bssgp_msg_size += 8; - } - - memcpy(msg + bssgp_msg_size, qos_ie, sizeof(qos_ie)); - bssgp_msg_size += sizeof(qos_ie); - - if (ptmsi != GSM_RESERVED_TMSI) { - const uint32_t ptmsi_be = htonl(ptmsi); - msg[bssgp_msg_size] = BSSGP_IE_TMSI; - msg[bssgp_msg_size+1] = 0x84; - memcpy(msg + bssgp_msg_size + 2, &ptmsi_be, 4); - bssgp_msg_size += 6; - } - - send_ns_unitdata(nsi, "PAGING_PS", src_addr, 0, msg, bssgp_msg_size); -} - -static void send_bssgp_flow_control_bvc(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, - uint16_t bvci, uint8_t tag) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA, - * BSSGP FLOW_CONTROL_BVC */ - unsigned char msg[] = { - 0x26, 0x1e, 0x81, /* Tag */ 0xff, 0x05, 0x82, 0x01, 0xdc, - 0x03, 0x82, 0x02, 0x76, 0x01, 0x82, 0x00, 0x50, - 0x1c, 0x82, 0x02, 0x58, 0x06, 0x82, 0x00, 0x03 - }; - - msg[3] = tag; - - send_ns_unitdata(nsi, "FLOW_CONTROL_BVC", src_addr, bvci, - msg, sizeof(msg)); -} - -static void send_bssgp_flow_control_bvc_ack(struct gprs_ns_inst *nsi, - struct sockaddr_in *src_addr, - uint16_t bvci, uint8_t tag) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA, - * BSSGP FLOW_CONTROL_BVC_ACK */ - unsigned char msg[] = { - 0x27, 0x1e, 0x81, /* Tag */ 0xce - }; - - msg[3] = tag; - - send_ns_unitdata(nsi, "FLOW_CONTROL_BVC_ACK", src_addr, bvci, - msg, sizeof(msg)); -} - -static void send_llc_ul_ui( - struct gprs_ns_inst *nsi, const char *text, - struct sockaddr_in *src_addr, uint16_t nsbvci, uint32_t tlli, - struct gprs_ra_id *raid, uint16_t cell_id, - unsigned sapi, unsigned nu, - const uint8_t *msg, size_t msg_size) -{ - unsigned char llc_msg[4096] = { - 0x00, 0xc0, 0x01 - }; - - size_t llc_msg_size = 3 + msg_size + 3; - uint8_t e_bit = 0; - uint8_t pm_bit = 1; - unsigned fcs; - - nu &= 0x01ff; - - OSMO_ASSERT(llc_msg_size <= sizeof(llc_msg)); - - llc_msg[0] = (sapi & 0x0f); - llc_msg[1] = 0xc0 | (nu >> 6); /* UI frame */ - llc_msg[2] = (nu << 2) | ((e_bit & 1) << 1) | (pm_bit & 1); - - memcpy(llc_msg + 3, msg, msg_size); - - fcs = gprs_llc_fcs(llc_msg, msg_size + 3); - llc_msg[3 + msg_size + 0] = (uint8_t)(fcs >> 0); - llc_msg[3 + msg_size + 1] = (uint8_t)(fcs >> 8); - llc_msg[3 + msg_size + 2] = (uint8_t)(fcs >> 16); - - send_bssgp_ul_unitdata(nsi, text ? text : "LLC UI", - src_addr, nsbvci, tlli, raid, cell_id, - llc_msg, llc_msg_size); -} - -static void send_llc_dl_ui( - struct gprs_ns_inst *nsi, const char *text, - struct sockaddr_in *src_addr, uint16_t nsbvci, uint32_t tlli, - int with_racap_drx, const uint8_t *imsi, size_t imsi_size, - unsigned sapi, unsigned nu, - const uint8_t *msg, size_t msg_size) -{ - /* GPRS Network Service, PDU type: NS_UNITDATA */ - /* Base Station Subsystem GPRS Protocol: UL_UNITDATA */ - unsigned char llc_msg[4096] = { - 0x00, 0x00, 0x01 - }; - - size_t llc_msg_size = 3 + msg_size + 3; - uint8_t e_bit = 0; - uint8_t pm_bit = 1; - unsigned fcs; - - nu &= 0x01ff; - - OSMO_ASSERT(llc_msg_size <= sizeof(llc_msg)); - - llc_msg[0] = 0x40 | (sapi & 0x0f); - llc_msg[1] = 0xc0 | (nu >> 6); /* UI frame */ - llc_msg[2] = (nu << 2) | ((e_bit & 1) << 1) | (pm_bit & 1); - - memcpy(llc_msg + 3, msg, msg_size); - - fcs = gprs_llc_fcs(llc_msg, msg_size + 3); - llc_msg[3 + msg_size + 0] = (uint8_t)(fcs >> 0); - llc_msg[3 + msg_size + 1] = (uint8_t)(fcs >> 8); - llc_msg[3 + msg_size + 2] = (uint8_t)(fcs >> 16); - - send_bssgp_dl_unitdata(nsi, text ? text : "LLC UI", - src_addr, nsbvci, tlli, - with_racap_drx, imsi, imsi_size, - llc_msg, llc_msg_size); -} - - -static void setup_ns(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, - uint16_t nsvci, uint16_t nsei) -{ - printf("Setup NS-VC: remote 0x%08x:%d, " - "NSVCI 0x%04x(%d), NSEI 0x%04x(%d)\n\n", - ntohl(src_addr->sin_addr.s_addr), ntohs(src_addr->sin_port), - nsvci, nsvci, nsei, nsei); - - send_ns_reset(nsi, src_addr, NS_CAUSE_OM_INTERVENTION, nsvci, nsei); - send_ns_alive(nsi, src_addr); - send_ns_unblock(nsi, src_addr); - send_ns_alive_ack(nsi, src_addr); -} - -static void setup_bssgp(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, - uint16_t bvci) -{ - printf("Setup BSSGP: remote 0x%08x:%d, " - "BVCI 0x%04x(%d)\n\n", - ntohl(src_addr->sin_addr.s_addr), ntohs(src_addr->sin_port), - bvci, bvci); - - send_bssgp_reset(nsi, src_addr, bvci); -} - -static void connect_sgsn(struct gprs_ns_inst *nsi, struct sockaddr_in *sgsn_peer, - uint32_t sgsn_nsei) -{ - gprs_ns_nsip_connect(nsi, sgsn_peer, sgsn_nsei, sgsn_nsei+1); - send_ns_reset_ack(nsi, sgsn_peer, sgsn_nsei+1, sgsn_nsei); - send_ns_alive_ack(nsi, sgsn_peer); - send_ns_unblock_ack(nsi, sgsn_peer); - send_ns_alive(nsi, sgsn_peer); -} - -static void configure_sgsn_peer(struct sockaddr_in *sgsn_peer) -{ - sgsn_peer->sin_family = AF_INET; - sgsn_peer->sin_port = htons(32000); - sgsn_peer->sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); -} - -static void configure_sgsn2_peer(struct sockaddr_in *sgsn_peer) -{ - sgsn_peer->sin_family = AF_INET; - sgsn_peer->sin_port = htons(32001); - sgsn_peer->sin_addr.s_addr = htonl(REMOTE_SGSN2_ADDR); -} - -static void configure_bss_peers(struct sockaddr_in *bss_peers, size_t size) -{ - size_t i; - - for (i = 0; i < size; ++i) { - bss_peers[i].sin_family = AF_INET; - bss_peers[i].sin_port = htons((i + 1) * 1111); - bss_peers[i].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); - } -} - -int gprs_ns_rcvmsg(struct gprs_ns_inst *nsi, struct msgb *msg, - struct sockaddr_in *saddr, enum gprs_ns_ll ll); - -/* override */ -int gprs_ns_callback(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, - struct msgb *msg, uint16_t bvci) -{ - printf("CALLBACK, event %d, msg length %zu, bvci 0x%04x\n%s\n\n", - event, msgb_bssgp_len(msg), bvci, - osmo_hexdump(msgb_l2(msg), msgb_l2len(msg))); - - switch (event) { - case GPRS_NS_EVT_UNIT_DATA: - return gbprox_rcvmsg(&gbcfg, msg, nsvc->nsei, bvci, nsvc->nsvci); - default: - break; - } - return 0; -} - -/* override */ -ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, - const struct sockaddr *dest_addr, socklen_t addrlen) -{ - typedef ssize_t (*sendto_t)(int, const void *, size_t, int, - const struct sockaddr *, socklen_t); - static sendto_t real_sendto = NULL; - uint32_t dest_host = htonl(((struct sockaddr_in *)dest_addr)->sin_addr.s_addr); - int dest_port = htons(((struct sockaddr_in *)dest_addr)->sin_port); - - if (!real_sendto) - real_sendto = dlsym(RTLD_NEXT, "sendto"); - - if (dest_host == REMOTE_BSS_ADDR) - printf("MESSAGE to BSS at 0x%08x:%d, msg length %zu\n%s\n\n", - dest_host, dest_port, - len, osmo_hexdump(buf, len)); - else if (dest_host == REMOTE_SGSN_ADDR) - printf("MESSAGE to SGSN at 0x%08x:%d, msg length %zu\n%s\n\n", - dest_host, dest_port, - len, osmo_hexdump(buf, len)); - else if (dest_host == REMOTE_SGSN2_ADDR) - printf("MESSAGE to SGSN 2 at 0x%08x:%d, msg length %zu\n%s\n\n", - dest_host, dest_port, - len, osmo_hexdump(buf, len)); - else - return real_sendto(sockfd, buf, len, flags, dest_addr, addrlen); - - return len; -} - -/* override */ -int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) -{ - typedef int (*gprs_ns_sendmsg_t)(struct gprs_ns_inst *nsi, struct msgb *msg); - static gprs_ns_sendmsg_t real_gprs_ns_sendmsg = NULL; - uint16_t bvci = msgb_bvci(msg); - uint16_t nsei = msgb_nsei(msg); - - size_t len = msgb_length(msg); - - if (!real_gprs_ns_sendmsg) - real_gprs_ns_sendmsg = dlsym(RTLD_NEXT, "gprs_ns_sendmsg"); - - if (nsei == SGSN_NSEI) - printf("NS UNITDATA MESSAGE to SGSN, BVCI 0x%04x, " - "msg length %zu (%s)\n", - bvci, len, __func__); - else if (nsei == SGSN2_NSEI) - printf("NS UNITDATA MESSAGE to SGSN 2, BVCI 0x%04x, " - "msg length %zu (%s)\n", - bvci, len, __func__); - else - printf("NS UNITDATA MESSAGE to BSS, BVCI 0x%04x, " - "msg length %zu (%s)\n", - bvci, len, __func__); - - if (received_messages) { - struct msgb *msg_copy; - msg_copy = gprs_msgb_copy(msg, "received_messages"); - llist_add_tail(&msg_copy->list, received_messages); - } - - return real_gprs_ns_sendmsg(nsi, msg); -} - -/* Get the next message from the receive FIFO - * - * \returns a pointer to the message which will be invalidated at the next call - * to expect_msg. Returns NULL, if there is no message left. - */ -static struct msgb *expect_msg(void) -{ - static struct msgb *msg = NULL; - - msgb_free(msg); - msg = NULL; - - if (!received_messages) - return NULL; - - if (llist_empty(received_messages)) - return NULL; - - msg = llist_entry(received_messages->next, struct msgb, list); - llist_del(&msg->list); - - return msg; -} - -struct expect_result { - struct msgb *msg; - struct gprs_gb_parse_context parse_ctx; -}; - -static struct expect_result *expect_bssgp_msg( - int match_nsei, int match_bvci, int match_pdu_type) -{ - static struct expect_result result; - static const struct expect_result empty_result = {0,}; - static struct msgb *msg; - uint16_t nsei; - int rc; - - memcpy(&result, &empty_result, sizeof(result)); - - msg = expect_msg(); - if (!msg) - return NULL; - - nsei = msgb_nsei(msg); - - if (match_nsei != MATCH_ANY && match_nsei != nsei) { - fprintf(stderr, "%s: NSEI mismatch (expected %u, got %u)\n", - __func__, match_nsei, nsei); - return NULL; - } - - if (match_bvci != MATCH_ANY && match_bvci != msgb_bvci(msg)) { - fprintf(stderr, "%s: BVCI mismatch (expected %u, got %u)\n", - __func__, match_bvci, msgb_bvci(msg)); - return NULL; - } - - result.msg = msg; - - result.parse_ctx.to_bss = nsei != SGSN_NSEI && nsei != SGSN2_NSEI; - result.parse_ctx.peer_nsei = nsei; - - if (!msgb_bssgph(msg)) { - fprintf(stderr, "%s: Expected BSSGP\n", __func__); - return NULL; - } - - rc = gprs_gb_parse_bssgp(msgb_bssgph(msg), msgb_bssgp_len(msg), - &result.parse_ctx); - - if (!rc) { - fprintf(stderr, "%s: Failed to parse message\n", __func__); - return NULL; - } - - if (match_pdu_type != MATCH_ANY && - match_pdu_type != result.parse_ctx.pdu_type) { - fprintf(stderr, "%s: PDU type mismatch (expected %u, got %u)\n", - __func__, match_pdu_type, result.parse_ctx.pdu_type); - return NULL; - } - - return &result; -} - -static struct expect_result *expect_llc_msg( - int match_nsei, int match_bvci, int match_sapi, int match_type) -{ - static struct expect_result *result; - - result = expect_bssgp_msg(match_nsei, match_bvci, MATCH_ANY); - if (!result) - return NULL; - - if (!result->parse_ctx.llc) { - fprintf(stderr, "%s: Expected LLC message\n", __func__); - return NULL; - } - - if (match_sapi != MATCH_ANY && - match_sapi != result->parse_ctx.llc_hdr_parsed.sapi) { - fprintf(stderr, "%s: LLC SAPI mismatch (expected %u, got %u)\n", - __func__, match_sapi, result->parse_ctx.llc_hdr_parsed.sapi); - return NULL; - } - - if (match_type != MATCH_ANY && - match_type != result->parse_ctx.llc_hdr_parsed.cmd) { - fprintf(stderr, - "%s: LLC command/type mismatch (expected %u, got %u)\n", - __func__, match_type, result->parse_ctx.llc_hdr_parsed.cmd); - return NULL; - } - - return result; -} - -static struct expect_result *expect_gmm_msg(int match_nsei, int match_bvci, - int match_type) -{ - static struct expect_result *result; - - result = expect_llc_msg(match_nsei, match_bvci, GPRS_SAPI_GMM, GPRS_LLC_UI); - if (!result) - return NULL; - - if (!result->parse_ctx.g48_hdr) { - fprintf(stderr, "%s: Expected GSM 04.08 message\n", __func__); - return NULL; - } - - if (match_type != MATCH_ANY && - match_type != result->parse_ctx.g48_hdr->msg_type) { - fprintf(stderr, - "%s: GSM 04.08 message type mismatch (expected %u, got %u)\n", - __func__, match_type, result->parse_ctx.g48_hdr->msg_type); - return NULL; - } - - return result; -} - -static void dump_rate_ctr_group(FILE *stream, const char *prefix, - struct rate_ctr_group *ctrg) -{ - unsigned int i; - - for (i = 0; i < ctrg->desc->num_ctr; i++) { - struct rate_ctr *ctr = &ctrg->ctr[i]; - if (ctr->current && !strchr(ctrg->desc->ctr_desc[i].name, '.')) - fprintf(stream, " %s%s: %llu%s", - prefix, ctrg->desc->ctr_desc[i].description, - (long long)ctr->current, - "\n"); - }; -} - -/* Signal handler for signals from NS layer */ -static int test_signal(unsigned int subsys, unsigned int signal, - void *handler_data, void *signal_data) -{ - struct ns_signal_data *nssd = signal_data; - int rc; - - if (subsys != SS_L_NS) - return 0; - - switch (signal) { - case S_NS_RESET: - printf("==> got signal NS_RESET, NS-VC 0x%04x/%s\n", - nssd->nsvc->nsvci, - gprs_ns_ll_str(nssd->nsvc)); - break; - - case S_NS_ALIVE_EXP: - printf("==> got signal NS_ALIVE_EXP, NS-VC 0x%04x/%s\n", - nssd->nsvc->nsvci, - gprs_ns_ll_str(nssd->nsvc)); - break; - - case S_NS_BLOCK: - printf("==> got signal NS_BLOCK, NS-VC 0x%04x/%s\n", - nssd->nsvc->nsvci, - gprs_ns_ll_str(nssd->nsvc)); - break; - - case S_NS_UNBLOCK: - printf("==> got signal NS_UNBLOCK, NS-VC 0x%04x/%s\n", - nssd->nsvc->nsvci, - gprs_ns_ll_str(nssd->nsvc)); - break; - - case S_NS_REPLACED: - printf("==> got signal NS_REPLACED: 0x%04x/%s", - nssd->nsvc->nsvci, - gprs_ns_ll_str(nssd->nsvc)); - printf(" -> 0x%04x/%s\n", - nssd->old_nsvc->nsvci, - gprs_ns_ll_str(nssd->old_nsvc)); - break; - - default: - printf("==> got signal %d, NS-VC 0x%04x/%s\n", signal, - nssd->nsvc->nsvci, - gprs_ns_ll_str(nssd->nsvc)); - break; - } - printf("\n"); - rc = gbprox_signal(subsys, signal, handler_data, signal_data); - return rc; -} - -static int gprs_process_message(struct gprs_ns_inst *nsi, const char *text, struct sockaddr_in *peer, const unsigned char* data, size_t data_len) -{ - struct msgb *msg; - int ret; - if (data_len > NS_ALLOC_SIZE - NS_ALLOC_HEADROOM) { - fprintf(stderr, "message too long: %zu\n", data_len); - return -1; - } - - msg = gprs_ns_msgb_alloc(); - OSMO_ASSERT(msg); - memmove(msg->data, data, data_len); - msg->l2h = msg->data; - msgb_put(msg, data_len); - - printf("PROCESSING %s from 0x%08x:%d\n%s\n\n", - text, ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port), - osmo_hexdump(data, data_len)); - - ret = gprs_ns_rcvmsg(nsi, msg, peer, GPRS_NS_LL_UDP); - - printf("result (%s) = %d\n\n", text, ret); - - msgb_free(msg); - - return ret; -} - -static void gprs_dump_nsi(struct gprs_ns_inst *nsi) -{ - struct gprs_nsvc *nsvc; - - printf("Current NS-VCIs:\n"); - llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { - struct sockaddr_in *peer = &(nsvc->ip.bts_addr); - printf(" VCI 0x%04x, NSEI 0x%04x, peer 0x%08x:%d%s%s\n", - nsvc->nsvci, nsvc->nsei, - ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port), - nsvc->state & NSE_S_BLOCKED ? ", blocked" : "", - nsvc->state & NSE_S_ALIVE ? "" : ", dead" - ); - dump_rate_ctr_group(stdout, " ", nsvc->ctrg); - } - printf("\n"); -} - -static void test_gbproxy() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[4] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - gprs_dump_nsi(nsi); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - printf("--- Initialise BSS 2 ---\n\n"); - - setup_ns(nsi, &bss_peer[1], 0x2001, 0x2000); - setup_bssgp(nsi, &bss_peer[1], 0x2002); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x2002); - - printf("--- Move BSS 1 to new port ---\n\n"); - - setup_ns(nsi, &bss_peer[2], 0x1001, 0x1000); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Move BSS 2 to former BSS 1 port ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x2001, 0x2000); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Move BSS 1 to current BSS 2 port ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x2001, 0x2000); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Move BSS 2 to new port ---\n\n"); - - setup_ns(nsi, &bss_peer[3], 0x2001, 0x2000); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Move BSS 2 to former BSS 1 port ---\n\n"); - - setup_ns(nsi, &bss_peer[2], 0x2001, 0x2000); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Move BSS 1 to original BSS 1 port ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Reset BSS 1 with a new BVCI ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], 0x1012); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1012); - - printf("--- Reset BSS 1 with the old BVCI ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], 0x1002); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - printf("--- Reset BSS 1 with the old BVCI again ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], 0x1002); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1012 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x1012, (uint8_t *)"", 0); - - printf("--- Send message from SGSN to BSS 1, BVCI 0x1012 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x1012, (uint8_t *)"", 0); - - printf("--- Send message from SGSN to BSS 1, BVCI 0x1002 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); - - printf("--- Send message from BSS 2 to SGSN, BVCI 0x2002 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x2002, (uint8_t *)"", 0); - - printf("--- Send message from SGSN to BSS 2, BVCI 0x2002 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x2002, (uint8_t *)"", 0); - - printf("--- Reset BSS 1 with the old BVCI on BSS2's link ---\n\n"); - - setup_bssgp(nsi, &bss_peer[2], 0x1002); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x1012, (uint8_t *)"", 0); - - printf("--- Send message from SGSN to BSS 1, BVCI 0x1002 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); - - printf("--- Send message from SGSN to BSS 1, BVCI 0x10ff (invalid) ---\n\n"); - - send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x10ff, (uint8_t *)"", 0); - - /* Find peer */ - OSMO_ASSERT(gbproxy_peer_by_bvci(&gbcfg, 0xeeee) == NULL); - OSMO_ASSERT(gbproxy_peer_by_bvci(&gbcfg, 0x1000) == NULL); - OSMO_ASSERT(gbproxy_peer_by_bvci(&gbcfg, 0x1012) != NULL); - OSMO_ASSERT(gbproxy_peer_by_nsei(&gbcfg, 0xeeee) == NULL); - OSMO_ASSERT(gbproxy_peer_by_nsei(&gbcfg, 0x1012) == NULL); - OSMO_ASSERT(gbproxy_peer_by_nsei(&gbcfg, 0x1000) != NULL); - - - /* Cleanup */ - OSMO_ASSERT(gbproxy_cleanup_peers(&gbcfg, 0, 0) == 0); - OSMO_ASSERT(gbproxy_cleanup_peers(&gbcfg, 0x1000, 0xeeee) == 0); - OSMO_ASSERT(gbproxy_cleanup_peers(&gbcfg, 0, 0x1002) == 0); - OSMO_ASSERT(gbproxy_cleanup_peers(&gbcfg, 0x1000, 0x1012) == 1); - OSMO_ASSERT(gbproxy_cleanup_peers(&gbcfg, 0x1000, 0x1012) == 0); - - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; -} - -static void test_gbproxy_ident_changes() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - uint16_t nsei[2] = {0x1000, 0x2000}; - uint16_t nsvci[2] = {0x1001, 0x2001}; - uint16_t bvci[4] = {0x1002, 0x2002, 0x3002, 0x4002}; - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - gprs_dump_nsi(nsi); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], nsvci[0], nsei[0]); - gprs_dump_nsi(nsi); - - printf("--- Setup BVCI 1 ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], bvci[0]); - send_bssgp_reset_ack(nsi, &sgsn_peer, bvci[0]); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Setup BVCI 2 ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], bvci[1]); - send_bssgp_reset_ack(nsi, &sgsn_peer, bvci[1]); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 1 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[0], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[0], (uint8_t *)"", 0); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 2 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[1], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[1], (uint8_t *)"", 0); - - printf("--- Change NSEI ---\n\n"); - - setup_ns(nsi, &bss_peer[0], nsvci[0], nsei[1]); - gprs_dump_nsi(nsi); - - printf("--- Setup BVCI 1 ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], bvci[0]); - send_bssgp_reset_ack(nsi, &sgsn_peer, bvci[0]); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Setup BVCI 3 ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], bvci[2]); - send_bssgp_reset_ack(nsi, &sgsn_peer, bvci[2]); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 1 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[0], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[0], (uint8_t *)"", 0); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 2 " - " (should fail) ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[1], (uint8_t *)"", 0); - dump_peers(stdout, 0, 0, &gbcfg); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[1], (uint8_t *)"", 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 3 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[2], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[2], (uint8_t *)"", 0); - - printf("--- Change NSVCI ---\n\n"); - - setup_ns(nsi, &bss_peer[0], nsvci[1], nsei[1]); - gprs_dump_nsi(nsi); - - printf("--- Setup BVCI 1 ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], bvci[0]); - send_bssgp_reset_ack(nsi, &sgsn_peer, bvci[0]); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Setup BVCI 4 ---\n\n"); - - setup_bssgp(nsi, &bss_peer[0], bvci[3]); - send_bssgp_reset_ack(nsi, &sgsn_peer, bvci[3]); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 1 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[0], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[0], (uint8_t *)"", 0); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 2 " - " (should fail) ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[1], (uint8_t *)"", 0); - dump_peers(stdout, 0, 0, &gbcfg); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[1], (uint8_t *)"", 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 3 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[2], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[2], (uint8_t *)"", 0); - - printf("--- Send message from BSS 1 to SGSN and back, BVCI 4 ---\n\n"); - - send_ns_unitdata(nsi, NULL, &bss_peer[0], bvci[3], (uint8_t *)"", 0); - send_ns_unitdata(nsi, NULL, &sgsn_peer, bvci[3], (uint8_t *)"", 0); - - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; -} - -static void test_gbproxy_ra_patching() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_sgsn = - {.mcc = 123, .mnc = 456, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x7530; - const char *err_msg = NULL; - const uint32_t ptmsi = 0xefe2b700; - const uint32_t local_tlli = 0xefe2b700; - const uint32_t foreign_tlli = 0xbbc54679; - const uint32_t foreign_tlli2 = 0xbb00beef; - const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - const char *patch_re = "^9898|^121314"; - struct gbproxy_link_info *link_info; - struct gbproxy_peer *peer; - LLIST_HEAD(rcv_list); - struct expect_result *expect_res; - - OSMO_ASSERT(local_tlli == gprs_tmsi2tlli(ptmsi, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 123; - gbcfg.core_mnc = 456; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 0; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - if (gbproxy_set_patch_filter(&gbcfg.matches[GBPROX_MATCH_PATCHING], - patch_re, &err_msg) != 0) { - fprintf(stderr, "Failed to compile RE '%s': %s\n", - patch_re, err_msg); - exit(1); - } - - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - gprs_dump_nsi(nsi); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - - received_messages = &rcv_list; - - setup_bssgp(nsi, &bss_peer[0], 0x1002); - gprs_dump_nsi(nsi); - dump_peers(stdout, 0, 0, &gbcfg); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - OSMO_ASSERT(expect_bssgp_msg(SGSN_NSEI, 0, BSSGP_PDUT_BVC_RESET)); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - OSMO_ASSERT(expect_bssgp_msg(0x1000, 0, BSSGP_PDUT_BVC_RESET_ACK)); - - send_bssgp_suspend(nsi, &bss_peer[0], 0xccd1758b, &rai_bss); - - OSMO_ASSERT(expect_bssgp_msg(SGSN_NSEI, 0, BSSGP_PDUT_SUSPEND)); - - send_bssgp_suspend_ack(nsi, &sgsn_peer, 0xccd1758b, &rai_sgsn); - - OSMO_ASSERT(expect_bssgp_msg(0x1000, 0, BSSGP_PDUT_SUSPEND_ACK)); - - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(2 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - OSMO_ASSERT(1 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_SGSN].current); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 0, - dtap_attach_req, sizeof(dtap_attach_req)); - - OSMO_ASSERT(4 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - foreign_tlli, 0, NULL, 0, - GPRS_SAPI_GMM, 0, - dtap_identity_req, sizeof(dtap_identity_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 3, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ID_RESP)); - - OSMO_ASSERT(5 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - OSMO_ASSERT(1 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_SGSN].current); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, 1, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - OSMO_ASSERT(2 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_SGSN].current); - - OSMO_ASSERT(gbproxy_peer_by_rai(&gbcfg, convert_ra(&rai_bss)) != NULL); - OSMO_ASSERT(gbproxy_peer_by_rai(&gbcfg, convert_ra(&rai_sgsn)) == NULL); - OSMO_ASSERT(gbproxy_peer_by_rai(&gbcfg, convert_ra(&rai_unknown)) == NULL); - - OSMO_ASSERT(gbproxy_peer_by_lai(&gbcfg, convert_ra(&rai_bss)) != NULL); - OSMO_ASSERT(gbproxy_peer_by_lai(&gbcfg, convert_ra(&rai_sgsn)) == NULL); - OSMO_ASSERT(gbproxy_peer_by_lai(&gbcfg, convert_ra(&rai_unknown)) == NULL); - - OSMO_ASSERT(gbproxy_peer_by_lac(&gbcfg, convert_ra(&rai_bss)) != NULL); - OSMO_ASSERT(gbproxy_peer_by_lac(&gbcfg, convert_ra(&rai_sgsn)) != NULL); - OSMO_ASSERT(gbproxy_peer_by_lac(&gbcfg, convert_ra(&rai_unknown)) == NULL); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current != local_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current != local_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 4, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - OSMO_ASSERT(6 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current != local_tlli); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current != local_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - /* Replace APN (1) */ - send_llc_ul_ui(nsi, "ACT PDP CTX REQ (REPLACE APN)", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 3, - dtap_act_pdp_ctx_req, sizeof(dtap_act_pdp_ctx_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GSM_ACT_PDP_REQ)); - - OSMO_ASSERT(7 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current != local_tlli); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current != local_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, 2, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_INFO)); - - OSMO_ASSERT(2 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_SGSN].current); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->tlli.current == local_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_tlli); - - /* Replace APN (2) */ - send_llc_ul_ui(nsi, "ACT PDP CTX REQ (REPLACE APN)", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 3, - dtap_act_pdp_ctx_req, sizeof(dtap_act_pdp_ctx_req)); - - expect_res = expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GSM_ACT_PDP_REQ); - OSMO_ASSERT(expect_res != NULL); - OSMO_ASSERT(expect_res->parse_ctx.apn_ie_len == gbcfg.core_apn_size + 2); - - OSMO_ASSERT(8 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - gbcfg.core_apn[0] = 0; - gbcfg.core_apn_size = 0; - - /* Remove APN */ - send_llc_ul_ui(nsi, "ACT PDP CTX REQ (REMOVE APN)", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 3, - dtap_act_pdp_ctx_req, sizeof(dtap_act_pdp_ctx_req)); - - expect_res = expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GSM_ACT_PDP_REQ); - OSMO_ASSERT(expect_res != NULL); - OSMO_ASSERT(expect_res->parse_ctx.apn_ie_len == 0); - - OSMO_ASSERT(9 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach */ - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 6, - dtap_detach_req, sizeof(dtap_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - OSMO_ASSERT(10 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - OSMO_ASSERT(2 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_SGSN].current); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, 5, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- RA update ---\n\n"); - - send_llc_ul_ui(nsi, "RA UPD REQ", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, 0x7080, - GPRS_SAPI_GMM, 5, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_RA_UPD_REQ)); - - OSMO_ASSERT(12 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - send_llc_dl_ui(nsi, "RA UPD ACC", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, 6, - dtap_ra_upd_acc, sizeof(dtap_ra_upd_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_RA_UPD_ACK)); - - OSMO_ASSERT(3 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_SGSN].current); - - /* Remove APN */ - send_llc_ul_ui(nsi, "ACT PDP CTX REQ (REMOVE APN)", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 3, - dtap_act_pdp_ctx_req, sizeof(dtap_act_pdp_ctx_req)); - - expect_res = expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GSM_ACT_PDP_REQ); - OSMO_ASSERT(expect_res != NULL); - OSMO_ASSERT(expect_res->parse_ctx.apn_ie_len == 0); - - OSMO_ASSERT(13 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (power off -> no Detach Accept) */ - send_llc_ul_ui(nsi, "DETACH REQ (PWR OFF)", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 6, - dtap_detach_po_req, sizeof(dtap_detach_po_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - OSMO_ASSERT(14 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Bad cases ---\n\n"); - - /* The RAI in the Attach Request message differs from the RAI in the - * BSSGP message, only patch the latter */ - - send_llc_ul_ui(nsi, "ATTACH REQUEST (foreign RAI)", &bss_peer[0], 0x1002, - foreign_tlli2, &rai_bss, cell_id, - GPRS_SAPI_GMM, 0, - dtap_attach_req2, sizeof(dtap_attach_req2)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - OSMO_ASSERT(15 == peer->ctrg->ctr[GBPROX_PEER_CTR_RAID_PATCHED_BSS].current); - - printf("TLLI is already detached, shouldn't patch\n"); - send_llc_ul_ui(nsi, "ACT PDP CTX REQ", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, 3, - dtap_act_pdp_ctx_req, sizeof(dtap_act_pdp_ctx_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GSM_ACT_PDP_REQ)); - - printf("Invalid RAI, shouldn't patch\n"); - send_bssgp_suspend_ack(nsi, &sgsn_peer, 0xccd1758b, &rai_unknown); - - /* TODO: The following breaks with the current libosmocore, enable it - * again (and remove the plain expect_msg), when the msgb_bssgph patch - * is integrated */ - /* OSMO_ASSERT(expect_bssgp_msg(SGSN_NSEI, 0, BSSGP_PDUT_STATUS)); */ - OSMO_ASSERT(expect_msg()); - - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!expect_msg()); - received_messages = NULL; - - gbproxy_clear_patch_filter(&gbcfg.matches[GBPROX_MATCH_PATCHING]); - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; -} - -static void test_gbproxy_ptmsi_assignment() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t ptmsi = 0xefe2b700; - const uint32_t local_tlli = 0xefe2b700; - - const uint32_t foreign_tlli1 = 0x8000dead; - const uint32_t foreign_tlli2 = 0x8000beef; - - const uint8_t imsi1[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - const uint8_t imsi2[] = {0x11, 0x12, 0x99, 0x99, 0x99, 0x16, 0x17, 0x18}; - - struct gbproxy_link_info *link_info, *link_info2; - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - - OSMO_ASSERT(local_tlli == gprs_tmsi2tlli(ptmsi, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 0; - gbcfg.core_mnc = 0; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 0; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Establish first LLC connection ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli1, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - foreign_tlli1, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli1, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli1, 1, imsi1, sizeof(imsi1), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli1); - link_info2 = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_tlli1); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_tlli1); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_tlli, 1, imsi1, sizeof(imsi1), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - OSMO_ASSERT(!gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2))); - - link_info2 = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->tlli.current == local_tlli); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - - printf("--- Establish second LLC connection with the same P-TMSI ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli2, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - foreign_tlli2, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli2, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity2_resp, sizeof(dtap_identity2_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli2, 1, imsi2, sizeof(imsi2), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli2); - link_info2 = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_tlli2); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_tlli2); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_tlli, 1, imsi2, sizeof(imsi2), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - OSMO_ASSERT(!gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1))); - - link_info2 = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->tlli.current == local_tlli); - OSMO_ASSERT(link_info->tlli.ptmsi == ptmsi); - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - -static void test_gbproxy_ptmsi_patching() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_sgsn = - {.mcc = 123, .mnc = 456, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_wrong_mcc_sgsn = - {.mcc = 999, .mnc = 456, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t sgsn_ptmsi = 0xefe2b700; - const uint32_t sgsn_ptmsi2 = 0xe0987654; - const uint32_t sgsn_ptmsi3 = 0xe0543210; - const uint32_t local_sgsn_tlli = 0xefe2b700; - const uint32_t local_sgsn_tlli2 = 0xe0987654; - const uint32_t local_sgsn_tlli3 = 0xe0543210; - const uint32_t random_sgsn_tlli = 0x78dead00; - const uint32_t unknown_sgsn_tlli = 0xeebadbad; - - const uint32_t bss_ptmsi = 0xc0dead01; - const uint32_t bss_ptmsi2 = 0xc0dead02; - const uint32_t bss_ptmsi3 = 0xc0dead03; - const uint32_t local_bss_tlli = 0xc0dead01; - const uint32_t local_bss_tlli2 = 0xc0dead02; - const uint32_t local_bss_tlli3 = 0xc0dead03; - const uint32_t foreign_bss_tlli = 0x8000dead; - - - const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - struct gbproxy_link_info *link_info; - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - int old_ctr; - - OSMO_ASSERT(local_sgsn_tlli == gprs_tmsi2tlli(sgsn_ptmsi, TLLI_LOCAL)); - OSMO_ASSERT(local_sgsn_tlli2 == gprs_tmsi2tlli(sgsn_ptmsi2, TLLI_LOCAL)); - OSMO_ASSERT(local_sgsn_tlli3 == gprs_tmsi2tlli(sgsn_ptmsi3, TLLI_LOCAL)); - OSMO_ASSERT(local_bss_tlli == gprs_tmsi2tlli(bss_ptmsi, TLLI_LOCAL)); - OSMO_ASSERT(local_bss_tlli2 == gprs_tmsi2tlli(bss_ptmsi2, TLLI_LOCAL)); - OSMO_ASSERT(local_bss_tlli3 == gprs_tmsi2tlli(bss_ptmsi3, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 123; - gbcfg.core_mnc = 456; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 1; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - random_sgsn_tlli, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - random_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - send_llc_ul_ui(nsi, "ACT PDP CTX REQ (REPLACE APN)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_act_pdp_ctx_req, sizeof(dtap_act_pdp_ctx_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Non-DTAP */ - send_bssgp_ul_unitdata(nsi, "XID (UL)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - llc_u_xid_ul, sizeof(llc_u_xid_ul)); - - send_bssgp_dl_unitdata(nsi, "XID (DL)", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - llc_u_xid_dl, sizeof(llc_u_xid_dl)); - - send_bssgp_ul_unitdata(nsi, "LL11 DNS QUERY (UL)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - llc_ui_ll11_dns_query_ul, - sizeof(llc_ui_ll11_dns_query_ul)); - - send_bssgp_dl_unitdata(nsi, "LL11 DNS RESP (DL)", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - llc_ui_ll11_dns_resp_dl, - sizeof(llc_ui_ll11_dns_resp_dl)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Repeated RA Update Requests */ - send_llc_ul_ui(nsi, "RA UPD REQ (P-TMSI 2)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - send_llc_dl_ui(nsi, "RA UDP ACC (P-TMSI 2)", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_ra_upd_acc2, sizeof(dtap_ra_upd_acc2)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli2, SGSN_NSEI) != NULL); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli2); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi2); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli2); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi2); - - send_llc_ul_ui(nsi, "RA UPD REQ (P-TMSI 3)", &bss_peer[0], 0x1002, - local_bss_tlli2, &rai_bss, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - send_llc_dl_ui(nsi, "RA UDP ACC (P-TMSI 3)", &sgsn_peer, 0x1002, - local_sgsn_tlli2, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_ra_upd_acc3, sizeof(dtap_ra_upd_acc3)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli2, SGSN_NSEI) == NULL); - OSMO_ASSERT(gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli3, SGSN_NSEI) != NULL); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli3); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi3); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli3); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi3); - - send_llc_ul_ui(nsi, "RA UPD COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli3, &rai_bss, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_complete, sizeof(dtap_ra_upd_complete)); - - link_info = gbproxy_link_info_by_tlli(peer, local_bss_tlli3); - - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_sgsn_tlli3, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli3, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli3); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli3); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - /* Other messages */ - send_bssgp_llc_discarded(nsi, &bss_peer[0], 0x1002, - local_bss_tlli3, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend(nsi, &bss_peer[0], local_bss_tlli3, &rai_bss); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend_ack(nsi, &sgsn_peer, local_sgsn_tlli3, &rai_sgsn); - - dump_peers(stdout, 0, 0, &gbcfg); - - old_ctr = peer->ctrg->ctr[GBPROX_PEER_CTR_PTMSI_PATCHED_SGSN].current; - - send_bssgp_paging(nsi, &sgsn_peer, imsi, sizeof(imsi), &rai_bss, sgsn_ptmsi3); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(old_ctr + 1 == - peer->ctrg->ctr[GBPROX_PEER_CTR_PTMSI_PATCHED_SGSN].current); - - /* Bad case: Invalid BVCI */ - send_bssgp_llc_discarded(nsi, &bss_peer[0], 0xeee1, - local_bss_tlli3, 1, 12); - dump_global(stdout, 0); - - /* Bad case: Invalid RAI */ - send_bssgp_suspend_ack(nsi, &sgsn_peer, local_sgsn_tlli3, &rai_unknown); - - dump_global(stdout, 0); - - /* Bad case: Invalid MCC (LAC ok) */ - send_bssgp_suspend_ack(nsi, &sgsn_peer, local_sgsn_tlli3, - &rai_wrong_mcc_sgsn); - - dump_global(stdout, 0); - - /* Bad case: Invalid TLLI from SGSN (IMSI unknown) */ - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - unknown_sgsn_tlli, 1, NULL, 0, - GPRS_SAPI_GMM, 2, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - /* Bad case: Invalid TLLI from SGSN (IMSI known) */ - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - unknown_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, 3, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - /* Detach */ - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli3, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer, 0x1002, - local_sgsn_tlli3, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - -static void test_gbproxy_ptmsi_patching_bad_cases() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t sgsn_ptmsi = 0xefe2b700; - const uint32_t local_sgsn_tlli = 0xefe2b700; - const uint32_t random_sgsn_tlli = 0x78dead00; - - const uint32_t bss_ptmsi = 0xc0dead01; - const uint32_t local_bss_tlli = 0xc0dead01; - const uint32_t foreign_bss_tlli = 0x8000dead; - - - const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - struct gbproxy_link_info *link_info; - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - - OSMO_ASSERT(local_sgsn_tlli == gprs_tmsi2tlli(sgsn_ptmsi, TLLI_LOCAL)); - OSMO_ASSERT(local_bss_tlli == gprs_tmsi2tlli(bss_ptmsi, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 123; - gbcfg.core_mnc = 456; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 1; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - random_sgsn_tlli, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - random_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT (duplicated)", &sgsn_peer, 0x1002, - random_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - /* Detach */ - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - - -static void test_gbproxy_imsi_acquisition() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_sgsn = - {.mcc = 123, .mnc = 456, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_wrong_mcc_sgsn = - {.mcc = 999, .mnc = 456, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t sgsn_ptmsi = 0xefe2b700; - const uint32_t local_sgsn_tlli = 0xefe2b700; - const uint32_t random_sgsn_tlli = 0x78dead00; - const uint32_t random_sgsn_tlli2 = 0x78dead02; - - const uint32_t bss_ptmsi = 0xc0dead01; - const uint32_t local_bss_tlli = 0xc0dead01; - const uint32_t foreign_bss_tlli = 0x8000dead; - const uint32_t other_bss_tlli = 0x8000beef; - - const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - struct gbproxy_link_info *link_info; - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - - OSMO_ASSERT(local_sgsn_tlli == gprs_tmsi2tlli(sgsn_ptmsi, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 123; - gbcfg.core_mnc = 456; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 1; - gbcfg.acquire_imsi = 1; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - random_sgsn_tlli, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - random_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - /* Non-DTAP */ - send_bssgp_ul_unitdata(nsi, "XID (UL)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - llc_u_xid_ul, sizeof(llc_u_xid_ul)); - - send_bssgp_dl_unitdata(nsi, "XID (DL)", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - llc_u_xid_dl, sizeof(llc_u_xid_dl)); - - send_bssgp_ul_unitdata(nsi, "LL11 DNS QUERY (UL)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - llc_ui_ll11_dns_query_ul, - sizeof(llc_ui_ll11_dns_query_ul)); - - send_bssgp_dl_unitdata(nsi, "LL11 DNS RESP (DL)", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - llc_ui_ll11_dns_resp_dl, - sizeof(llc_ui_ll11_dns_resp_dl)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Other messages */ - send_bssgp_llc_discarded(nsi, &bss_peer[0], 0x1002, - local_bss_tlli, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_llc_discarded(nsi, &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend(nsi, &bss_peer[0], local_bss_tlli, &rai_bss); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend_ack(nsi, &sgsn_peer, local_sgsn_tlli, &rai_sgsn); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Bad case: Invalid BVCI */ - send_bssgp_llc_discarded(nsi, &bss_peer[0], 0xeee1, - local_bss_tlli, 1, 12); - dump_global(stdout, 0); - - /* Bad case: Invalid RAI */ - send_bssgp_suspend_ack(nsi, &sgsn_peer, local_sgsn_tlli, &rai_unknown); - - dump_global(stdout, 0); - - /* Bad case: Invalid MCC (LAC ok) */ - send_bssgp_suspend_ack(nsi, &sgsn_peer, local_sgsn_tlli, - &rai_wrong_mcc_sgsn); - - dump_global(stdout, 0); - - /* Detach */ - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* RA Update request */ - - send_llc_ul_ui(nsi, "RA UPD REQ", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "RA UDP ACC", &sgsn_peer, 0x1002, - random_sgsn_tlli2, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_ra_upd_acc, sizeof(dtap_ra_upd_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach */ - - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer, 0x1002, - local_sgsn_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Special case: Repeated Attach Requests */ - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Special case: Detach from an unknown TLLI */ - - send_llc_ul_ui(nsi, "DETACH REQ (unknown TLLI)", &bss_peer[0], 0x1002, - other_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Special case: Repeated RA Update Requests */ - - send_llc_ul_ui(nsi, "RA UPD REQ", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - send_llc_ul_ui(nsi, "RA UPD REQ", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - -static void test_gbproxy_secondary_sgsn() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer[2]= {{0},}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_sgsn = - {.mcc = 123, .mnc = 456, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t sgsn_ptmsi = 0xefe2b700; - const uint32_t local_sgsn_tlli = 0xefe2b700; - const uint32_t random_sgsn_tlli = 0x78dead00; - - const uint32_t bss_ptmsi = 0xc0dead01; - const uint32_t local_bss_tlli = 0xc0dead01; - const uint32_t foreign_bss_tlli = 0x8000dead; - - const uint32_t sgsn_ptmsi2 = 0xe0987654; - const uint32_t local_sgsn_tlli2 = 0xe0987654; - const uint32_t random_sgsn_tlli2 = 0x78dead02; - const uint32_t bss_ptmsi2 = 0xc0dead03; - const uint32_t local_bss_tlli2 = 0xc0dead03; - const uint32_t foreign_bss_tlli2 = 0x8000beef; - - const uint32_t random_sgsn_tlli3 = 0x78dead04; - const uint32_t bss_ptmsi3 = 0xc0dead05; - const uint32_t local_bss_tlli3 = 0xc0dead05; - const uint32_t foreign_bss_tlli3 = 0x8000feed; - - const uint8_t imsi1[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - const uint8_t imsi2[] = {0x11, 0x12, 0x99, 0x99, 0x99, 0x16, 0x17, 0x18}; - const uint8_t imsi3[] = {0x11, 0x12, 0x99, 0x99, 0x99, 0x26, 0x27, 0x28}; - struct gbproxy_link_info *link_info; - struct gbproxy_link_info *other_info; - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - - const char *err_msg = NULL; - const char *filter_re = "999999"; - - OSMO_ASSERT(local_sgsn_tlli == gprs_tmsi2tlli(sgsn_ptmsi, TLLI_LOCAL)); - OSMO_ASSERT(local_sgsn_tlli2 == gprs_tmsi2tlli(sgsn_ptmsi2, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 123; - gbcfg.core_mnc = 456; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 1; - gbcfg.acquire_imsi = 1; - - gbcfg.route_to_sgsn2 = 1; - gbcfg.nsip_sgsn2_nsei = SGSN2_NSEI; - - if (gbproxy_set_patch_filter(&gbcfg.matches[GBPROX_MATCH_ROUTING], - filter_re, &err_msg) != 0) { - fprintf(stderr, "gbprox_set_patch_filter: got error: %s\n", - err_msg); - OSMO_ASSERT(err_msg == NULL); - } - - configure_sgsn_peer(&sgsn_peer[0]); - configure_sgsn2_peer(&sgsn_peer[1]); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN 1 ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer[0], SGSN_NSEI); - - printf("--- Initialise SGSN 2 ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer[1], SGSN2_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x0); - send_bssgp_reset_ack(nsi, &sgsn_peer[0], 0x0); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - send_bssgp_reset_ack(nsi, &sgsn_peer[0], 0x1002); - send_bssgp_reset_ack(nsi, &sgsn_peer[1], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Flow control ---\n\n"); - - send_bssgp_flow_control_bvc(nsi, &bss_peer[0], 0x1002, 1); - send_bssgp_flow_control_bvc_ack(nsi, &sgsn_peer[0], 0x1002, 1); - send_bssgp_flow_control_bvc_ack(nsi, &sgsn_peer[1], 0x1002, 1); - - printf("--- Establish GPRS connection (SGSN 1) ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer[0], 0x1002, - random_sgsn_tlli, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer[0], 0x1002, - random_sgsn_tlli, 1, imsi1, sizeof(imsi1), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN2_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN2_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer[0], 0x1002, - local_sgsn_tlli, 1, imsi1, sizeof(imsi1), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN2_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - /* Non-DTAP */ - send_bssgp_ul_unitdata(nsi, "XID (UL)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - llc_u_xid_ul, sizeof(llc_u_xid_ul)); - - send_bssgp_dl_unitdata(nsi, "XID (DL)", &sgsn_peer[0], 0x1002, - local_sgsn_tlli, 1, imsi1, sizeof(imsi1), - llc_u_xid_dl, sizeof(llc_u_xid_dl)); - - send_bssgp_ul_unitdata(nsi, "LL11 DNS QUERY (UL)", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - llc_ui_ll11_dns_query_ul, - sizeof(llc_ui_ll11_dns_query_ul)); - - send_bssgp_dl_unitdata(nsi, "LL11 DNS RESP (DL)", &sgsn_peer[0], 0x1002, - local_sgsn_tlli, 1, imsi1, sizeof(imsi1), - llc_ui_ll11_dns_resp_dl, - sizeof(llc_ui_ll11_dns_resp_dl)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Other messages */ - send_bssgp_llc_discarded(nsi, &bss_peer[0], 0x1002, - local_bss_tlli, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_llc_discarded(nsi, &sgsn_peer[0], 0x1002, - local_sgsn_tlli, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend(nsi, &bss_peer[0], local_bss_tlli, &rai_bss); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend_ack(nsi, &sgsn_peer[0], local_sgsn_tlli, &rai_sgsn); - - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Establish GPRS connection (SGSN 2) ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli2, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli2, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity2_resp, sizeof(dtap_identity2_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer[1], 0x1002, - random_sgsn_tlli2, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli2, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity2_resp, sizeof(dtap_identity2_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer[1], 0x1002, - random_sgsn_tlli2, 1, imsi2, sizeof(imsi2), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc2, sizeof(dtap_attach_acc2)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli2, SGSN_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli2, SGSN2_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli2); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli2); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi2); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli2); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli2); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi2); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli2, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli2, SGSN_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli2, SGSN2_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli2); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli2); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli2); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli2); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer[1], 0x1002, - local_sgsn_tlli2, 1, imsi2, sizeof(imsi2), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli2, SGSN_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli2, SGSN2_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli2); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli2); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - /* Non-DTAP */ - send_bssgp_ul_unitdata(nsi, "XID (UL)", &bss_peer[0], 0x1002, - local_bss_tlli2, &rai_bss, cell_id, - llc_u_xid_ul, sizeof(llc_u_xid_ul)); - - send_bssgp_dl_unitdata(nsi, "XID (DL)", &sgsn_peer[1], 0x1002, - local_sgsn_tlli2, 1, imsi2, sizeof(imsi2), - llc_u_xid_dl, sizeof(llc_u_xid_dl)); - - send_bssgp_ul_unitdata(nsi, "LL11 DNS QUERY (UL)", &bss_peer[0], 0x1002, - local_bss_tlli2, &rai_bss, cell_id, - llc_ui_ll11_dns_query_ul, - sizeof(llc_ui_ll11_dns_query_ul)); - - send_bssgp_dl_unitdata(nsi, "LL11 DNS RESP (DL)", &sgsn_peer[1], 0x1002, - local_sgsn_tlli2, 1, imsi2, sizeof(imsi2), - llc_ui_ll11_dns_resp_dl, - sizeof(llc_ui_ll11_dns_resp_dl)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Other messages */ - send_bssgp_llc_discarded(nsi, &bss_peer[0], 0x1002, - local_bss_tlli2, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_llc_discarded(nsi, &sgsn_peer[1], 0x1002, - local_sgsn_tlli2, 1, 12); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend(nsi, &bss_peer[0], local_bss_tlli2, &rai_bss); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_bssgp_suspend_ack(nsi, &sgsn_peer[1], local_sgsn_tlli2, &rai_sgsn); - - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Establish GPRS connection (SGSN 2, P-TMSI collision) ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_bss_tlli3, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli3, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity3_resp, sizeof(dtap_identity3_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer[1], 0x1002, - random_sgsn_tlli3, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_bss_tlli3, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity3_resp, sizeof(dtap_identity3_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT (P-TMSI 1)", &sgsn_peer[1], 0x1002, - random_sgsn_tlli3, 1, imsi3, sizeof(imsi3), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli3, SGSN_NSEI)); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, random_sgsn_tlli3, SGSN2_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli3); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli3); - OSMO_ASSERT(!link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->tlli.ptmsi == bss_ptmsi3); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli3); - OSMO_ASSERT(!link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.ptmsi == sgsn_ptmsi); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_bss_tlli3, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - dump_peers(stdout, 0, 0, &gbcfg); - - other_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(other_info); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN2_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info != other_info); - OSMO_ASSERT(link_info->tlli.assigned == local_bss_tlli3); - OSMO_ASSERT(link_info->tlli.current == foreign_bss_tlli3); - OSMO_ASSERT(link_info->tlli.bss_validated); - OSMO_ASSERT(!link_info->tlli.net_validated); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.current == random_sgsn_tlli3); - OSMO_ASSERT(link_info->sgsn_tlli.bss_validated); - OSMO_ASSERT(!link_info->sgsn_tlli.net_validated); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer[1], 0x1002, - local_sgsn_tlli, 1, imsi3, sizeof(imsi3), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - dump_peers(stdout, 0, 0, &gbcfg); - - other_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN_NSEI); - OSMO_ASSERT(other_info); - link_info = gbproxy_link_info_by_sgsn_tlli(peer, local_sgsn_tlli, SGSN2_NSEI); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info != other_info); - OSMO_ASSERT(link_info->tlli.current == local_bss_tlli3); - OSMO_ASSERT(link_info->tlli.assigned == 0); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_sgsn_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - - printf("--- Shutdown GPRS connection (SGSN 1) ---\n\n"); - - /* Detach */ - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer[0], 0x1002, - local_sgsn_tlli, 1, imsi1, sizeof(imsi1), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Shutdown GPRS connection (SGSN 2) ---\n\n"); - - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli2, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer[1], 0x1002, - local_sgsn_tlli2, 1, imsi2, sizeof(imsi2), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Shutdown GPRS connection (SGSN 2, P-TMSI 1) ---\n\n"); - - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_bss_tlli3, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer[1], 0x1002, - local_sgsn_tlli, 1, imsi3, sizeof(imsi3), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - gbproxy_clear_patch_filter(&gbcfg.matches[GBPROX_MATCH_ROUTING]); - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - -static void test_gbproxy_keep_info() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t ptmsi = 0xefe2b700; - const uint32_t local_tlli = 0xefe2b700; - const uint32_t foreign_tlli = 0xafe2b700; - - const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; - struct gbproxy_link_info *link_info, *link_info2; - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - - LLIST_HEAD(rcv_list); - - OSMO_ASSERT(local_tlli == gprs_tmsi2tlli(ptmsi, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.patch_ptmsi = 0; - gbcfg.acquire_imsi = 1; - gbcfg.core_mcc = 0; - gbcfg.core_mnc = 0; - gbcfg.core_apn = NULL; - gbcfg.core_apn_size = 0; - gbcfg.route_to_sgsn2 = 0; - gbcfg.nsip_sgsn2_nsei = 0xffff; - gbcfg.keep_link_infos = GBPROX_KEEP_ALWAYS; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); - - received_messages = &rcv_list; - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->imsi_len == 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(link_info->imsi_acq_pending); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->imsi_len > 0); - OSMO_ASSERT(!link_info->imsi_acq_pending); - OSMO_ASSERT(gprs_tlli_type(link_info->sgsn_tlli.current) == TLLI_FOREIGN); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - foreign_tlli, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ID_RESP)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->imsi_len > 0); - OSMO_ASSERT(gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi))); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_INFO)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - /* Detach (MO) */ - send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "DETACH ACC", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - OSMO_ASSERT(!expect_msg()); - - /* Re-Attach */ - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - OSMO_ASSERT(gprs_tlli_type(link_info->sgsn_tlli.current) == TLLI_FOREIGN); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ (re-attach)", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_rea_req, sizeof(dtap_mt_detach_rea_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - /* Re-Attach */ - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_req, sizeof(dtap_mt_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - /* Re-Attach with IMSI */ - send_llc_ul_ui(nsi, "ATTACH REQUEST (IMSI)", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req4, sizeof(dtap_attach_req4)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - OSMO_ASSERT(link_info->sgsn_tlli.current == foreign_tlli); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_req, sizeof(dtap_mt_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - /* Re-Attach */ - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* RA update procedure (reject -> Detach) */ - send_llc_ul_ui(nsi, "RA UPD REQ", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, 0x7080, - GPRS_SAPI_GMM, bss_nu++, - dtap_ra_upd_req, sizeof(dtap_ra_upd_req)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_RA_UPD_REQ)); - - send_llc_dl_ui(nsi, "RA UDP REJ", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_ra_upd_rej, sizeof(dtap_ra_upd_rej)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_RA_UPD_REJ)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - /* Bad case: Re-Attach with wrong (initial) P-TMSI */ - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info != link_info2); - OSMO_ASSERT(link_info->imsi_len == 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(link_info->imsi_acq_pending); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len > 0); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_req, sizeof(dtap_mt_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - OSMO_ASSERT(!expect_msg()); - - /* Bad case: Re-Attach with local TLLI */ - send_llc_ul_ui(nsi, "ATTACH REQUEST (local TLLI)", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - OSMO_ASSERT(link_info->sgsn_tlli.current == local_tlli); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ (re-attach)", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_rea_req, sizeof(dtap_mt_detach_rea_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - /* Bad case: Unexpected Re-Attach with IMSI after completed attachment - * procedure */ - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_INFO)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH REQUEST (unexpected, IMSI)", - &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req4, sizeof(dtap_attach_req4)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - OSMO_ASSERT(link_info->sgsn_tlli.current == foreign_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_req, sizeof(dtap_mt_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - /* Bad case: Unexpected Re-Attach with P-TMSI after completed attachment - * procedure */ - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "GMM INFO", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_gmm_information, sizeof(dtap_gmm_information)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_INFO)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH REQUEST (unexpected)", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req3, sizeof(dtap_attach_req3)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - OSMO_ASSERT(link_info->sgsn_tlli.current == foreign_tlli); - OSMO_ASSERT(link_info->sgsn_tlli.assigned == 0); - - send_llc_dl_ui(nsi, "ATTACH ACCEPT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_acc, sizeof(dtap_attach_acc)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "ATTACH COMPLETE", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_complete, sizeof(dtap_attach_complete)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_COMPL)); - - dump_peers(stdout, 0, 0, &gbcfg); - - /* Detach (MT) */ - send_llc_dl_ui(nsi, "DETACH REQ", &sgsn_peer, 0x1002, - local_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_req, sizeof(dtap_mt_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, local_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - local_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - OSMO_ASSERT(!expect_msg()); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, local_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - - /* Attach rejected */ - - gbproxy_delete_link_infos(peer); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->imsi_len == 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(link_info->imsi_acq_pending); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info2 = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info == link_info2); - OSMO_ASSERT(link_info->imsi_len != 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(!link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "ATTACH REJECT", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_attach_rej7, sizeof(dtap_attach_rej7)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ATTACH_REJ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, foreign_tlli)); - - OSMO_ASSERT(!expect_msg()); - - /* Attach (incomplete) and Detach (MO) */ - - gbproxy_delete_link_infos(peer); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->imsi_len == 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(link_info->imsi_acq_pending); - - send_llc_ul_ui(nsi, "DETACH REQ (MO)", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_req, sizeof(dtap_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!expect_msg()); - - /* Attach (incomplete) and Detach (MT) */ - - gbproxy_delete_link_infos(peer); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_ID_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->imsi_len == 0); - OSMO_ASSERT(!link_info->is_deregistered); - OSMO_ASSERT(link_info->imsi_acq_pending); - - send_llc_dl_ui(nsi, "DETACH REQ (MT)", &sgsn_peer, 0x1002, - foreign_tlli, 1, imsi, sizeof(imsi), - GPRS_SAPI_GMM, sgsn_nu++, - dtap_mt_detach_req, sizeof(dtap_mt_detach_req)); - - OSMO_ASSERT(expect_gmm_msg(0x1000, 0x1002, GSM48_MT_GMM_DETACH_REQ)); - - dump_peers(stdout, 0, 0, &gbcfg); - - link_info = gbproxy_link_info_by_tlli(peer, foreign_tlli); - OSMO_ASSERT(link_info); - - send_llc_ul_ui(nsi, "DETACH ACC", &bss_peer[0], 0x1002, - foreign_tlli, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_mt_detach_acc, sizeof(dtap_mt_detach_acc)); - - /* TODO: The stored messaged should be cleaned when receiving a Detach - * Ack. Remove the first OSMO_ASSERT when this is fixed. */ - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_ATTACH_REQ)); - OSMO_ASSERT(expect_gmm_msg(SGSN_NSEI, 0x1002, GSM48_MT_GMM_DETACH_ACK)); - - dump_peers(stdout, 0, 0, &gbcfg); - - OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, foreign_tlli)); - link_info = gbproxy_link_info_by_imsi(peer, imsi, sizeof(imsi)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->is_deregistered); - - OSMO_ASSERT(!expect_msg()); - received_messages = NULL; - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - -struct gbproxy_link_info *register_tlli( - struct gbproxy_peer *peer, uint32_t tlli, - const uint8_t *imsi, size_t imsi_len, time_t now) -{ - struct gbproxy_link_info *link_info; - int imsi_matches = -1; - int tlli_already_known = 0; - struct gbproxy_config *cfg = peer->cfg; - - /* Check, whether the IMSI matches */ - if (gprs_is_mi_imsi(imsi, imsi_len)) { - imsi_matches = gbproxy_check_imsi( - &cfg->matches[GBPROX_MATCH_PATCHING], imsi, imsi_len); - if (imsi_matches < 0) - return NULL; - } - - link_info = gbproxy_link_info_by_tlli(peer, tlli); - - if (!link_info) { - link_info = gbproxy_link_info_by_imsi(peer, imsi, imsi_len); - - if (link_info) { - /* TLLI has changed somehow, adjust it */ - LOGP(DGPRS, LOGL_INFO, - "The TLLI has changed from %08x to %08x\n", - link_info->tlli.current, tlli); - link_info->tlli.current = tlli; - } - } - - if (!link_info) { - link_info = gbproxy_link_info_alloc(peer); - link_info->tlli.current = tlli; - } else { - gbproxy_detach_link_info(peer, link_info); - tlli_already_known = 1; - } - - OSMO_ASSERT(link_info != NULL); - - if (!tlli_already_known) - LOGP(DGPRS, LOGL_INFO, "Adding TLLI %08x to list\n", tlli); - - gbproxy_attach_link_info(peer, now, link_info); - gbproxy_update_link_info(link_info, imsi, imsi_len); - - if (imsi_matches >= 0) - link_info->is_matching[GBPROX_MATCH_PATCHING] = imsi_matches; - - return link_info; -} - -static void test_gbproxy_tlli_expire(void) -{ - struct gbproxy_config cfg = {0}; - struct gbproxy_peer *peer; - const char *err_msg = NULL; - const uint8_t imsi1[] = { GSM_MI_TYPE_IMSI, 0x23, 0x24, 0x25, 0x26 }; - const uint8_t imsi2[] = { GSM_MI_TYPE_IMSI, 0x26, 0x27, 0x28, 0x29 }; - const uint8_t imsi3[] = { GSM_MI_TYPE_IMSI | 0x10, 0x32, 0x54, 0x76, 0xf8 }; - const uint32_t tlli1 = 1234 | 0xc0000000; - const uint32_t tlli2 = 5678 | 0xc0000000; - const uint32_t tlli3 = 3456 | 0xc0000000; - const char *filter_re = ".*"; - time_t now = 1407479214; - - printf("Test TLLI info expiry\n\n"); - - gbproxy_init_config(&cfg); - - if (gbproxy_set_patch_filter(&cfg.matches[GBPROX_MATCH_PATCHING], - filter_re, &err_msg) != 0) { - fprintf(stderr, "gbprox_set_patch_filter: got error: %s\n", - err_msg); - OSMO_ASSERT(err_msg == NULL); - } - - { - struct gbproxy_link_info *link_info; - - printf("Test TLLI replacement:\n"); - - cfg.tlli_max_len = 0; - cfg.tlli_max_age = 0; - peer = gbproxy_peer_alloc(&cfg, 20); - OSMO_ASSERT(peer->patch_state.logical_link_count == 0); - - printf(" Add TLLI 1, IMSI 1\n"); - link_info = register_tlli(peer, tlli1, - imsi1, ARRAY_SIZE(imsi1), now); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - /* replace the old entry */ - printf(" Add TLLI 2, IMSI 1 (should replace TLLI 1)\n"); - link_info = register_tlli(peer, tlli2, - imsi1, ARRAY_SIZE(imsi1), now); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli2); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - dump_peers(stdout, 2, now, &cfg); - - /* verify that 5678 has survived */ - link_info = gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli2); - link_info = gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2)); - OSMO_ASSERT(!link_info); - - printf("\n"); - - gbproxy_peer_free(peer); - } - - { - struct gbproxy_link_info *link_info; - - printf("Test IMSI replacement:\n"); - - cfg.tlli_max_len = 0; - cfg.tlli_max_age = 0; - peer = gbproxy_peer_alloc(&cfg, 20); - OSMO_ASSERT(peer->patch_state.logical_link_count == 0); - - printf(" Add TLLI 1, IMSI 1\n"); - link_info = register_tlli(peer, tlli1, - imsi1, ARRAY_SIZE(imsi1), now); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - /* try to replace the old entry */ - printf(" Add TLLI 1, IMSI 2 (should replace IMSI 1)\n"); - link_info = register_tlli(peer, tlli1, - imsi2, ARRAY_SIZE(imsi2), now); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - dump_peers(stdout, 2, now, &cfg); - - /* verify that 5678 has survived */ - link_info = gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1)); - OSMO_ASSERT(!link_info); - link_info = gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli1); - - printf("\n"); - - gbproxy_peer_free(peer); - } - - { - struct gbproxy_link_info *link_info; - int num_removed; - - printf("Test TLLI expiry, max_len == 1:\n"); - - cfg.tlli_max_len = 1; - cfg.tlli_max_age = 0; - peer = gbproxy_peer_alloc(&cfg, 20); - OSMO_ASSERT(peer->patch_state.logical_link_count == 0); - - printf(" Add TLLI 1, IMSI 1\n"); - register_tlli(peer, tlli1, imsi1, ARRAY_SIZE(imsi1), now); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - /* replace the old entry */ - printf(" Add TLLI 2, IMSI 2 (should replace IMSI 1)\n"); - register_tlli(peer, tlli2, imsi2, ARRAY_SIZE(imsi2), now); - OSMO_ASSERT(peer->patch_state.logical_link_count == 2); - - num_removed = gbproxy_remove_stale_link_infos(peer, now + 2); - OSMO_ASSERT(num_removed == 1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - dump_peers(stdout, 2, now, &cfg); - - /* verify that 5678 has survived */ - link_info = gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1)); - OSMO_ASSERT(!link_info); - link_info = gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli2); - - printf("\n"); - - gbproxy_peer_free(peer); - } - - { - struct gbproxy_link_info *link_info; - int num_removed; - - printf("Test TLLI expiry, max_age == 1:\n"); - - cfg.tlli_max_len = 0; - cfg.tlli_max_age = 1; - peer = gbproxy_peer_alloc(&cfg, 20); - OSMO_ASSERT(peer->patch_state.logical_link_count == 0); - - printf(" Add TLLI 1, IMSI 1 (should expire after timeout)\n"); - register_tlli(peer, tlli1, imsi1, ARRAY_SIZE(imsi1), now); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - printf(" Add TLLI 2, IMSI 2 (should not expire after timeout)\n"); - register_tlli(peer, tlli2, imsi2, ARRAY_SIZE(imsi2), - now + 1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 2); - - num_removed = gbproxy_remove_stale_link_infos(peer, now + 2); - OSMO_ASSERT(num_removed == 1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - dump_peers(stdout, 2, now + 2, &cfg); - - /* verify that 5678 has survived */ - link_info = gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1)); - OSMO_ASSERT(!link_info); - link_info = gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli2); - - printf("\n"); - - gbproxy_peer_free(peer); - } - - { - struct gbproxy_link_info *link_info; - int num_removed; - - printf("Test TLLI expiry, max_len == 2, max_age == 1:\n"); - - cfg.tlli_max_len = 0; - cfg.tlli_max_age = 1; - peer = gbproxy_peer_alloc(&cfg, 20); - OSMO_ASSERT(peer->patch_state.logical_link_count == 0); - - printf(" Add TLLI 1, IMSI 1 (should expire)\n"); - register_tlli(peer, tlli1, imsi1, ARRAY_SIZE(imsi1), now); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - printf(" Add TLLI 2, IMSI 2 (should expire after timeout)\n"); - register_tlli(peer, tlli2, imsi2, ARRAY_SIZE(imsi2), - now + 1); - OSMO_ASSERT(peer->patch_state.logical_link_count == 2); - - printf(" Add TLLI 3, IMSI 3 (should not expire after timeout)\n"); - register_tlli(peer, tlli3, imsi3, ARRAY_SIZE(imsi3), - now + 2); - OSMO_ASSERT(peer->patch_state.logical_link_count == 3); - - dump_peers(stdout, 2, now + 2, &cfg); - - printf(" Remove stale TLLIs\n"); - num_removed = gbproxy_remove_stale_link_infos(peer, now + 3); - OSMO_ASSERT(num_removed == 2); - OSMO_ASSERT(peer->patch_state.logical_link_count == 1); - - dump_peers(stdout, 2, now + 2, &cfg); - - /* verify that tlli3 has survived */ - link_info = gbproxy_link_info_by_imsi(peer, imsi1, ARRAY_SIZE(imsi1)); - OSMO_ASSERT(!link_info); - link_info = gbproxy_link_info_by_imsi(peer, imsi2, ARRAY_SIZE(imsi2)); - OSMO_ASSERT(!link_info); - link_info = gbproxy_link_info_by_imsi(peer, imsi3, ARRAY_SIZE(imsi3)); - OSMO_ASSERT(link_info); - OSMO_ASSERT(link_info->tlli.current == tlli3); - - printf("\n"); - - gbproxy_peer_free(peer); - } - gbproxy_clear_patch_filter(&cfg.matches[GBPROX_MATCH_PATCHING]); - gbprox_reset(&cfg); - - cleanup_test(); -} - -static void test_gbproxy_imsi_matching(void) -{ - const char *err_msg = NULL; - const uint8_t imsi1[] = { GSM_MI_TYPE_IMSI | 0x10, 0x32, 0x54, 0xf6 }; - const uint8_t imsi2[] = { GSM_MI_TYPE_IMSI | GSM_MI_ODD | 0x10, 0x32, 0x54, 0x76 }; - const uint8_t imsi3_bad[] = { GSM_MI_TYPE_IMSI | 0x10, 0xee, 0x54, 0xff }; - const uint8_t tmsi1[] = { GSM_MI_TYPE_TMSI | 0xf0, 0x11, 0x22, 0x33, 0x44 }; - const uint8_t tmsi2_bad[] = { GSM_MI_TYPE_TMSI | 0xf0, 0x11, 0x22 }; - const uint8_t imei1[] = { GSM_MI_TYPE_IMEI | 0x10, 0x32, 0x54, 0xf6 }; - const uint8_t imei2[] = { GSM_MI_TYPE_IMEI | GSM_MI_ODD | 0x10, 0x32, 0x54, 0x76 }; - const char *filter_re1 = ".*"; - const char *filter_re2 = "^1234"; - const char *filter_re3 = "^4321"; - const char *filter_re4_bad = "^12["; - struct gbproxy_match match = {0,}; - - printf("=== Test IMSI/TMSI matching ===\n\n"); - - OSMO_ASSERT(match.enable == 0); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re1, &err_msg) == 0); - OSMO_ASSERT(match.enable == 1); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re2, &err_msg) == 0); - OSMO_ASSERT(match.enable == 1); - - err_msg = NULL; - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re4_bad, &err_msg) == -1); - OSMO_ASSERT(err_msg != NULL); - OSMO_ASSERT(match.enable == 0); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re2, &err_msg) == 0); - OSMO_ASSERT(match.enable == 1); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, NULL, &err_msg) == 0); - OSMO_ASSERT(match.enable == 0); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re2, &err_msg) == 0); - OSMO_ASSERT(match.enable == 1); - - gbproxy_clear_patch_filter(&match); - OSMO_ASSERT(match.enable == 0); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re2, &err_msg) == 0); - OSMO_ASSERT(match.enable == 1); - - OSMO_ASSERT(gbproxy_check_imsi(&match, imsi1, ARRAY_SIZE(imsi1)) == 1); - OSMO_ASSERT(gbproxy_check_imsi(&match, imsi2, ARRAY_SIZE(imsi2)) == 1); - /* imsi3_bad contains 0xE and 0xF digits, but the conversion function - * doesn't complain, so gbproxy_check_imsi() doesn't return -1 in this - * case. */ - OSMO_ASSERT(gbproxy_check_imsi(&match, imsi3_bad, ARRAY_SIZE(imsi3_bad)) == 0); - OSMO_ASSERT(gbproxy_check_imsi(&match, tmsi1, ARRAY_SIZE(tmsi1)) == -1); - OSMO_ASSERT(gbproxy_check_imsi(&match, tmsi2_bad, ARRAY_SIZE(tmsi2_bad)) == -1); - OSMO_ASSERT(gbproxy_check_imsi(&match, imei1, ARRAY_SIZE(imei1)) == -1); - OSMO_ASSERT(gbproxy_check_imsi(&match, imei2, ARRAY_SIZE(imei2)) == -1); - - OSMO_ASSERT(gbproxy_set_patch_filter(&match, filter_re3, &err_msg) == 0); - OSMO_ASSERT(match.enable == 1); - - OSMO_ASSERT(gbproxy_check_imsi(&match, imsi1, ARRAY_SIZE(imsi1)) == 0); - OSMO_ASSERT(gbproxy_check_imsi(&match, imsi2, ARRAY_SIZE(imsi2)) == 0); - OSMO_ASSERT(gbproxy_check_imsi(&match, imsi3_bad, ARRAY_SIZE(imsi3_bad)) == 0); - OSMO_ASSERT(gbproxy_check_imsi(&match, tmsi1, ARRAY_SIZE(tmsi1)) == -1); - OSMO_ASSERT(gbproxy_check_imsi(&match, tmsi2_bad, ARRAY_SIZE(tmsi2_bad)) == -1); - OSMO_ASSERT(gbproxy_check_imsi(&match, imei1, ARRAY_SIZE(imei1)) == -1); - OSMO_ASSERT(gbproxy_check_imsi(&match, imei2, ARRAY_SIZE(imei2)) == -1); - - /* TODO: Check correct length but wrong type with is_mi_tmsi */ - - gbproxy_clear_patch_filter(&match); - OSMO_ASSERT(match.enable == 0); - - cleanup_test(); -} - -static void test_gbproxy_stored_messages() -{ - struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); - struct sockaddr_in bss_peer[1] = {{0},}; - struct sockaddr_in sgsn_peer= {0}; - struct gprs_ra_id rai_bss = - {.mcc = 112, .mnc = 332, .lac = 16464, .rac = 96}; - struct gprs_ra_id rai_unknown = - {.mcc = 1, .mnc = 99, .lac = 99, .rac = 96}; - uint16_t cell_id = 0x1234; - - const uint32_t ptmsi = 0xefe2b700; - const uint32_t local_tlli = 0xefe2b700; - - const uint32_t foreign_tlli1 = 0x8000dead; - - struct gbproxy_peer *peer; - unsigned bss_nu = 0; - unsigned sgsn_nu = 0; - - OSMO_ASSERT(local_tlli == gprs_tmsi2tlli(ptmsi, TLLI_LOCAL)); - - bssgp_nsi = nsi; - gbcfg.nsi = bssgp_nsi; - gbcfg.nsip_sgsn_nsei = SGSN_NSEI; - gbcfg.core_mcc = 0; - gbcfg.core_mnc = 0; - gbcfg.core_apn = talloc_zero_size(NULL, 100); - gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, 100, "foo.bar"); - gbcfg.patch_ptmsi = 0; - gbcfg.acquire_imsi = 1; - gbcfg.keep_link_infos = 0; - - configure_sgsn_peer(&sgsn_peer); - configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer)); - - printf("=== %s ===\n", __func__); - printf("--- Initialise SGSN ---\n\n"); - - connect_sgsn(nsi, &sgsn_peer, SGSN_NSEI); - - printf("--- Initialise BSS 1 ---\n\n"); - - setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); - setup_bssgp(nsi, &bss_peer[0], 0x1002); - - peer = gbproxy_peer_by_nsei(&gbcfg, 0x1000); - OSMO_ASSERT(peer != NULL); - - send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); - - gprs_dump_nsi(nsi); - dump_global(stdout, 0); - dump_peers(stdout, 0, 0, &gbcfg); - - printf("--- Establish first LLC connection ---\n\n"); - - send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002, - foreign_tlli1, &rai_unknown, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_attach_req, sizeof(dtap_attach_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_dl_ui(nsi, "IDENT REQUEST", &sgsn_peer, 0x1002, - foreign_tlli1, 0, NULL, 0, - GPRS_SAPI_GMM, sgsn_nu++, - dtap_identity_req, sizeof(dtap_identity_req)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "DETACH ACCEPT", &bss_peer[0], 0x1002, - foreign_tlli1, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_detach_acc, sizeof(dtap_detach_acc)); - - dump_peers(stdout, 0, 0, &gbcfg); - - send_llc_ul_ui(nsi, "IDENT RESPONSE", &bss_peer[0], 0x1002, - foreign_tlli1, &rai_bss, cell_id, - GPRS_SAPI_GMM, bss_nu++, - dtap_identity_resp, sizeof(dtap_identity_resp)); - - dump_peers(stdout, 0, 0, &gbcfg); - - dump_global(stdout, 0); - - gbprox_reset(&gbcfg); - gprs_ns_destroy(nsi); - nsi = NULL; - - cleanup_test(); -} - -static struct log_info_cat gprs_categories[] = { - [DGPRS] = { - .name = "DGPRS", - .description = "GPRS Packet Service", - .enabled = 1, .loglevel = LOGL_DEBUG, - }, - [DNS] = { - .name = "DNS", - .description = "GPRS Network Service (NS)", - .enabled = 1, .loglevel = LOGL_INFO, - }, - [DBSSGP] = { - .name = "DBSSGP", - .description = "GPRS BSS Gateway Protocol (BSSGP)", - .enabled = 1, .loglevel = LOGL_DEBUG, - }, -}; - -static struct log_info info = { - .cat = gprs_categories, - .num_cat = ARRAY_SIZE(gprs_categories), -}; - -int main(int argc, char **argv) -{ - msgb_talloc_ctx_init(NULL, 0); - - osmo_init_logging(&info); - log_set_use_color(osmo_stderr_target, 0); - log_set_print_filename(osmo_stderr_target, 0); - osmo_signal_register_handler(SS_L_NS, &test_signal, &gbcfg); - - log_set_print_filename(osmo_stderr_target, 0); - log_set_log_level(osmo_stderr_target, LOGL_DEBUG); - log_set_all_filter(osmo_stderr_target, 1); - - rate_ctr_init(NULL); - - setlinebuf(stdout); - - printf("===== GbProxy test START\n"); - gbproxy_init_config(&gbcfg); - test_gbproxy(); - test_gbproxy_ident_changes(); - test_gbproxy_imsi_matching(); - test_gbproxy_ptmsi_assignment(); - test_gbproxy_ra_patching(); - test_gbproxy_ptmsi_patching(); - test_gbproxy_ptmsi_patching_bad_cases(); - test_gbproxy_imsi_acquisition(); - test_gbproxy_secondary_sgsn(); - test_gbproxy_keep_info(); - test_gbproxy_tlli_expire(); - test_gbproxy_stored_messages(); - printf("===== GbProxy test END\n\n"); - - exit(EXIT_SUCCESS); -} |