Holger Hans Peter Freyther | 232f621 | 2014-09-30 09:10:25 +0200 | [diff] [blame] | 1 | /* Test the SGSN */ |
| 2 | /* |
| 3 | * (C) 2014 by Holger Hans Peter Freyther |
| 4 | * (C) 2014 by sysmocom s.f.m.c. GmbH |
| 5 | * All Rights Reserved |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU Affero General Public License as published by |
| 9 | * the Free Software Foundation; either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU Affero General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Affero General Public License |
| 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | */ |
| 21 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 22 | #include <openbsc/gprs_llc.h> |
| 23 | #include <openbsc/sgsn.h> |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 24 | #include <openbsc/gprs_gmm.h> |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 25 | #include <openbsc/debug.h> |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame^] | 26 | #include <openbsc/gsm_subscriber.h> |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 27 | |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 28 | #include <osmocom/gprs/gprs_bssgp.h> |
| 29 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 30 | #include <osmocom/gsm/gsm_utils.h> |
| 31 | |
| 32 | #include <osmocom/core/application.h> |
| 33 | #include <osmocom/core/msgb.h> |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 34 | #include <osmocom/core/rate_ctr.h> |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 35 | |
Holger Hans Peter Freyther | 232f621 | 2014-09-30 09:10:25 +0200 | [diff] [blame] | 36 | #include <stdio.h> |
| 37 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 38 | extern void *tall_msgb_ctx; |
| 39 | |
| 40 | void *tall_bsc_ctx; |
| 41 | static struct sgsn_instance sgsn_inst = { |
| 42 | .config_file = "osmo_sgsn.cfg", |
| 43 | .cfg = { |
| 44 | .gtp_statedir = "./", |
Jacob Erlbeck | d7b7773 | 2014-11-04 10:08:37 +0100 | [diff] [blame] | 45 | .auth_policy = SGSN_AUTH_POLICY_CLOSED, |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 46 | }, |
| 47 | }; |
| 48 | struct sgsn_instance *sgsn = &sgsn_inst; |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 49 | unsigned sgsn_tx_counter = 0; |
| 50 | |
| 51 | /* override */ |
| 52 | int bssgp_tx_dl_ud(struct msgb *msg, uint16_t pdu_lifetime, |
| 53 | struct bssgp_dl_ud_par *dup) |
| 54 | { |
| 55 | sgsn_tx_counter += 1; |
| 56 | return 0; |
| 57 | } |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 58 | |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame^] | 59 | /* override, requires '-Wl,--wrap=sgsn_update_subscriber_data' */ |
| 60 | void __real_sgsn_update_subscriber_data(struct sgsn_mm_ctx *, struct gsm_subscriber *); |
| 61 | void (*update_subscriber_data_cb)(struct sgsn_mm_ctx *, struct gsm_subscriber *) = |
| 62 | &__real_sgsn_update_subscriber_data; |
| 63 | |
| 64 | void __wrap_sgsn_update_subscriber_data(struct sgsn_mm_ctx *mmctx, |
| 65 | struct gsm_subscriber *subscr) |
| 66 | { |
| 67 | (*update_subscriber_data_cb)(mmctx, subscr); |
| 68 | } |
| 69 | |
| 70 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 71 | static int count(struct llist_head *head) |
| 72 | { |
| 73 | struct llist_head *cur; |
| 74 | int count = 0; |
| 75 | |
| 76 | llist_for_each(cur, head) |
| 77 | count += 1; |
| 78 | |
| 79 | return count; |
| 80 | } |
| 81 | |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 82 | static struct msgb *create_msg(const uint8_t *data, size_t len) |
| 83 | { |
| 84 | struct msgb *msg = msgb_alloc(len + 8, "test message"); |
| 85 | msg->l1h = msgb_put(msg, 8); |
| 86 | msg->l2h = msgb_put(msg, len); |
| 87 | memcpy(msg->l2h, data, len); |
| 88 | |
| 89 | msgb_bcid(msg) = msg->l1h; |
| 90 | msgb_gmmh(msg) = msg->l2h; |
| 91 | return msg; |
| 92 | } |
| 93 | |
Jacob Erlbeck | f43a299 | 2014-10-27 13:23:49 +0100 | [diff] [blame] | 94 | /* |
| 95 | * Create a context and search for it |
| 96 | */ |
| 97 | static struct sgsn_mm_ctx *alloc_mm_ctx(uint32_t tlli, struct gprs_ra_id *raid) |
| 98 | { |
| 99 | struct sgsn_mm_ctx *ctx, *ictx; |
| 100 | struct gprs_llc_lle *lle; |
| 101 | int old_count = count(gprs_llme_list()); |
| 102 | |
| 103 | lle = gprs_lle_get_or_create(tlli, 3); |
| 104 | ctx = sgsn_mm_ctx_alloc(tlli, raid); |
| 105 | ctx->mm_state = GMM_REGISTERED_NORMAL; |
| 106 | ctx->llme = lle->llme; |
| 107 | |
| 108 | ictx = sgsn_mm_ctx_by_tlli(tlli, raid); |
| 109 | OSMO_ASSERT(ictx == ctx); |
| 110 | |
| 111 | OSMO_ASSERT(count(gprs_llme_list()) == old_count + 1); |
| 112 | |
| 113 | return ctx; |
| 114 | } |
| 115 | |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 116 | static void send_0408_message(struct gprs_llc_llme *llme, uint32_t tlli, |
| 117 | const uint8_t *data, size_t data_len) |
| 118 | { |
| 119 | struct msgb *msg; |
| 120 | |
| 121 | sgsn_tx_counter = 0; |
| 122 | |
| 123 | msg = create_msg(data, data_len); |
| 124 | msgb_tlli(msg) = tlli; |
| 125 | gsm0408_gprs_rcvmsg(msg, llme); |
| 126 | msgb_free(msg); |
| 127 | } |
| 128 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 129 | static void test_llme(void) |
| 130 | { |
| 131 | struct gprs_llc_lle *lle, *lle_copy; |
| 132 | uint32_t local_tlli; |
| 133 | uint32_t foreign_tlli; |
| 134 | |
| 135 | printf("Testing LLME allocations\n"); |
| 136 | local_tlli = gprs_tmsi2tlli(0x234, TLLI_LOCAL); |
| 137 | foreign_tlli = gprs_tmsi2tlli(0x234, TLLI_FOREIGN); |
| 138 | |
| 139 | /* initial state */ |
| 140 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 141 | |
| 142 | /* Create a new entry */ |
| 143 | lle = gprs_lle_get_or_create(local_tlli, 3); |
| 144 | OSMO_ASSERT(lle); |
| 145 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 146 | |
| 147 | /* No new entry is created */ |
| 148 | lle_copy = gprs_lle_get_or_create(local_tlli, 3); |
| 149 | OSMO_ASSERT(lle == lle_copy); |
| 150 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 151 | lle_copy = gprs_lle_get_or_create(foreign_tlli, 3); |
| 152 | OSMO_ASSERT(lle == lle_copy); |
| 153 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 154 | |
| 155 | /* unassign which should delete it*/ |
| 156 | gprs_llgmm_assign(lle->llme, lle->llme->tlli, 0xffffffff, GPRS_ALGO_GEA0, NULL); |
| 157 | |
| 158 | /* Check that everything was cleaned up */ |
| 159 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 160 | } |
| 161 | |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame^] | 162 | struct gsm_subscriber *last_updated_subscr = NULL; |
| 163 | void my_dummy_sgsn_update_subscriber_data(struct sgsn_mm_ctx *mmctx, |
| 164 | struct gsm_subscriber *subscr) |
| 165 | { |
| 166 | fprintf(stderr, "Called %s, mmctx = %p, subscr = %p\n", |
| 167 | __func__, mmctx, subscr); |
| 168 | last_updated_subscr = subscr; |
| 169 | } |
| 170 | |
| 171 | static void test_subscriber(void) |
| 172 | { |
| 173 | struct gsm_subscriber *s1, *s2, *s1found, *s2found; |
| 174 | const char *imsi1 = "1234567890"; |
| 175 | const char *imsi2 = "9876543210"; |
| 176 | |
| 177 | update_subscriber_data_cb = my_dummy_sgsn_update_subscriber_data; |
| 178 | |
| 179 | printf("Testing core subscriber data API\n"); |
| 180 | |
| 181 | /* Check for emptiness */ |
| 182 | OSMO_ASSERT(gprs_subscr_get_by_imsi(imsi1) == NULL); |
| 183 | OSMO_ASSERT(gprs_subscr_get_by_imsi(imsi2) == NULL); |
| 184 | |
| 185 | /* Allocate entry 1 */ |
| 186 | s1 = gprs_subscr_get_or_create(imsi1); |
| 187 | s1->flags |= GSM_SUBSCRIBER_FIRST_CONTACT; |
| 188 | s1found = gprs_subscr_get_by_imsi(imsi1); |
| 189 | OSMO_ASSERT(s1found == s1); |
| 190 | OSMO_ASSERT(gprs_subscr_get_by_imsi(imsi2) == NULL); |
| 191 | subscr_put(s1found); |
| 192 | |
| 193 | /* Allocate entry 2 */ |
| 194 | s2 = gprs_subscr_get_or_create(imsi2); |
| 195 | s2->flags |= GSM_SUBSCRIBER_FIRST_CONTACT; |
| 196 | s1found = gprs_subscr_get_by_imsi(imsi1); |
| 197 | s2found = gprs_subscr_get_by_imsi(imsi2); |
| 198 | OSMO_ASSERT(s1found == s1); |
| 199 | OSMO_ASSERT(s2found == s2); |
| 200 | subscr_put(s1found); |
| 201 | subscr_put(s2found); |
| 202 | |
| 203 | /* Update entry 1 */ |
| 204 | last_updated_subscr = NULL; |
| 205 | gprs_subscr_update(s1); |
| 206 | OSMO_ASSERT(last_updated_subscr == s1); |
| 207 | |
| 208 | /* Because of the update, it won't be freed on delete now */ |
| 209 | gprs_subscr_delete(s1); |
| 210 | s1found = gprs_subscr_get_by_imsi(imsi1); |
| 211 | OSMO_ASSERT(s1found != NULL); |
| 212 | s1 = s1found; |
| 213 | |
| 214 | /* Cancel it, so that delete will free it. |
| 215 | * Refcount it to make sure s1 won't be freed here */ |
| 216 | last_updated_subscr = NULL; |
| 217 | gprs_subscr_put_and_cancel(subscr_get(s1)); |
| 218 | OSMO_ASSERT(last_updated_subscr == s1); |
| 219 | |
| 220 | /* Cancelled entries are still being found */ |
| 221 | s1found = gprs_subscr_get_by_imsi(imsi1); |
| 222 | OSMO_ASSERT(s1found != NULL); |
| 223 | subscr_put(s1found); |
| 224 | |
| 225 | /* Free entry 1 */ |
| 226 | gprs_subscr_delete(s1); |
| 227 | s1 = NULL; |
| 228 | s2found = gprs_subscr_get_by_imsi(imsi2); |
| 229 | OSMO_ASSERT(gprs_subscr_get_by_imsi(imsi1) == NULL); |
| 230 | OSMO_ASSERT(s2found == s2); |
| 231 | subscr_put(s2found); |
| 232 | |
| 233 | /* Free entry 2 */ |
| 234 | gprs_subscr_delete(s2); |
| 235 | s2 = NULL; |
| 236 | OSMO_ASSERT(gprs_subscr_get_by_imsi(imsi1) == NULL); |
| 237 | OSMO_ASSERT(gprs_subscr_get_by_imsi(imsi2) == NULL); |
| 238 | |
| 239 | OSMO_ASSERT(llist_empty(&active_subscribers)); |
| 240 | |
| 241 | update_subscriber_data_cb = __real_sgsn_update_subscriber_data; |
| 242 | } |
| 243 | |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 244 | /* |
| 245 | * Test that a GMM Detach will remove the MMCTX and the |
| 246 | * associated LLME. |
| 247 | */ |
| 248 | static void test_gmm_detach(void) |
| 249 | { |
| 250 | struct gprs_ra_id raid = { 0, }; |
| 251 | struct sgsn_mm_ctx *ctx, *ictx; |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 252 | uint32_t local_tlli; |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 253 | |
| 254 | printf("Testing GMM detach\n"); |
| 255 | |
| 256 | /* DTAP - Detach Request (MO) */ |
| 257 | /* normal detach, power_off = 0 */ |
| 258 | static const unsigned char detach_req[] = { |
| 259 | 0x08, 0x05, 0x01, 0x18, 0x05, 0xf4, 0xef, 0xe2, |
| 260 | 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb |
| 261 | }; |
| 262 | |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 263 | local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 264 | |
Jacob Erlbeck | f43a299 | 2014-10-27 13:23:49 +0100 | [diff] [blame] | 265 | /* Create a context */ |
| 266 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 267 | ctx = alloc_mm_ctx(local_tlli, &raid); |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 268 | |
| 269 | /* inject the detach */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 270 | send_0408_message(ctx->llme, local_tlli, |
| 271 | detach_req, ARRAY_SIZE(detach_req)); |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 272 | |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 273 | /* verify that a single message (hopefully the Detach Accept) has been |
| 274 | * sent by the SGSN */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 275 | OSMO_ASSERT(sgsn_tx_counter == 1); |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 276 | |
| 277 | /* verify that things are gone */ |
| 278 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 279 | ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid); |
| 280 | OSMO_ASSERT(!ictx); |
| 281 | } |
| 282 | |
| 283 | /* |
| 284 | * Test that a GMM Detach will remove the MMCTX and the associated LLME but |
| 285 | * will not sent a Detach Accept message (power_off = 1) |
| 286 | */ |
| 287 | static void test_gmm_detach_power_off(void) |
| 288 | { |
| 289 | struct gprs_ra_id raid = { 0, }; |
| 290 | struct sgsn_mm_ctx *ctx, *ictx; |
| 291 | uint32_t local_tlli; |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 292 | |
| 293 | printf("Testing GMM detach (power off)\n"); |
| 294 | |
| 295 | /* DTAP - Detach Request (MO) */ |
| 296 | /* normal detach, power_off = 1 */ |
| 297 | static const unsigned char detach_req[] = { |
| 298 | 0x08, 0x05, 0x09, 0x18, 0x05, 0xf4, 0xef, 0xe2, |
| 299 | 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb |
| 300 | }; |
| 301 | |
| 302 | local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); |
| 303 | |
| 304 | /* Create a context */ |
| 305 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 306 | ctx = alloc_mm_ctx(local_tlli, &raid); |
| 307 | |
| 308 | /* inject the detach */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 309 | send_0408_message(ctx->llme, local_tlli, |
| 310 | detach_req, ARRAY_SIZE(detach_req)); |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 311 | |
| 312 | /* verify that no message (and therefore no Detach Accept) has been |
| 313 | * sent by the SGSN */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 314 | OSMO_ASSERT(sgsn_tx_counter == 0); |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 315 | |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 316 | /* verify that things are gone */ |
| 317 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 318 | ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid); |
Jacob Erlbeck | 12396bd | 2014-09-30 13:51:45 +0200 | [diff] [blame] | 319 | OSMO_ASSERT(!ictx); |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 320 | } |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 321 | |
Jacob Erlbeck | 42d284f | 2014-10-21 13:09:55 +0200 | [diff] [blame] | 322 | /* |
| 323 | * Test that a GMM Detach will remove the associated LLME if there is no MMCTX. |
| 324 | */ |
| 325 | static void test_gmm_detach_no_mmctx(void) |
| 326 | { |
| 327 | struct gprs_llc_lle *lle; |
| 328 | uint32_t local_tlli; |
Jacob Erlbeck | 42d284f | 2014-10-21 13:09:55 +0200 | [diff] [blame] | 329 | |
| 330 | printf("Testing GMM detach (no MMCTX)\n"); |
| 331 | |
| 332 | /* DTAP - Detach Request (MO) */ |
| 333 | /* normal detach, power_off = 0 */ |
| 334 | static const unsigned char detach_req[] = { |
| 335 | 0x08, 0x05, 0x01, 0x18, 0x05, 0xf4, 0xef, 0xe2, |
| 336 | 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb |
| 337 | }; |
| 338 | |
| 339 | /* Create an LLME */ |
| 340 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 341 | local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); |
| 342 | lle = gprs_lle_get_or_create(local_tlli, 3); |
| 343 | |
| 344 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 345 | |
| 346 | /* inject the detach */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 347 | send_0408_message(lle->llme, local_tlli, |
| 348 | detach_req, ARRAY_SIZE(detach_req)); |
Jacob Erlbeck | 42d284f | 2014-10-21 13:09:55 +0200 | [diff] [blame] | 349 | |
| 350 | /* verify that the LLME is gone */ |
| 351 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 352 | } |
| 353 | |
Jacob Erlbeck | b35ee6b | 2014-10-28 09:47:03 +0100 | [diff] [blame] | 354 | /* |
Jacob Erlbeck | 021a0d1 | 2014-11-24 15:04:15 +0100 | [diff] [blame] | 355 | * Test that a single GMM Detach Accept message will not cause the SGSN to send |
| 356 | * any message or leave an MM context at the SGSN. |
| 357 | */ |
| 358 | static void test_gmm_detach_accept_unexpected(void) |
| 359 | { |
| 360 | struct gprs_llc_lle *lle; |
| 361 | uint32_t local_tlli; |
| 362 | |
| 363 | printf("Testing GMM detach accept (unexpected)\n"); |
| 364 | |
| 365 | /* DTAP - Detach Accept (MT) */ |
| 366 | /* normal detach */ |
| 367 | static const unsigned char detach_acc[] = { |
| 368 | 0x08, 0x06 |
| 369 | }; |
| 370 | |
| 371 | /* Create an LLME */ |
| 372 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 373 | local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); |
| 374 | lle = gprs_lle_get_or_create(local_tlli, 3); |
| 375 | |
| 376 | /* inject the detach */ |
| 377 | send_0408_message(lle->llme, local_tlli, |
| 378 | detach_acc, ARRAY_SIZE(detach_acc)); |
| 379 | |
| 380 | /* verify that no message (and therefore no Status or XID reset) has been |
| 381 | * sent by the SGSN */ |
| 382 | OSMO_ASSERT(sgsn_tx_counter == 0); |
| 383 | |
| 384 | /* verify that things are gone */ |
| 385 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 386 | } |
| 387 | |
| 388 | /* |
Jacob Erlbeck | b35ee6b | 2014-10-28 09:47:03 +0100 | [diff] [blame] | 389 | * Test that a GMM Status will remove the associated LLME if there is no MMCTX. |
| 390 | */ |
| 391 | static void test_gmm_status_no_mmctx(void) |
| 392 | { |
| 393 | struct gprs_llc_lle *lle; |
| 394 | uint32_t local_tlli; |
Jacob Erlbeck | b35ee6b | 2014-10-28 09:47:03 +0100 | [diff] [blame] | 395 | |
| 396 | printf("Testing GMM Status (no MMCTX)\n"); |
| 397 | |
| 398 | /* DTAP - GMM Status, protocol error */ |
| 399 | static const unsigned char gmm_status[] = { |
| 400 | 0x08, 0x20, 0x6f |
| 401 | }; |
| 402 | |
| 403 | /* Create an LLME */ |
| 404 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 405 | local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); |
| 406 | lle = gprs_lle_get_or_create(local_tlli, 3); |
| 407 | |
| 408 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 409 | |
| 410 | /* inject the detach */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 411 | send_0408_message(lle->llme, local_tlli, |
| 412 | gmm_status, ARRAY_SIZE(gmm_status)); |
Jacob Erlbeck | b35ee6b | 2014-10-28 09:47:03 +0100 | [diff] [blame] | 413 | |
| 414 | /* verify that no message has been sent by the SGSN */ |
Jacob Erlbeck | 7548829 | 2014-10-29 10:31:18 +0100 | [diff] [blame] | 415 | OSMO_ASSERT(sgsn_tx_counter == 0); |
Jacob Erlbeck | b35ee6b | 2014-10-28 09:47:03 +0100 | [diff] [blame] | 416 | |
| 417 | /* verify that the LLME is gone */ |
| 418 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 419 | } |
| 420 | |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 421 | /* |
| 422 | * Test the GMM Attach procedure |
| 423 | */ |
| 424 | static void test_gmm_attach(void) |
| 425 | { |
| 426 | struct gprs_ra_id raid = { 0, }; |
| 427 | struct sgsn_mm_ctx *ctx = NULL; |
| 428 | struct sgsn_mm_ctx *ictx; |
Jacob Erlbeck | 0a2c791 | 2014-11-24 14:40:28 +0100 | [diff] [blame] | 429 | uint32_t ptmsi1; |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 430 | uint32_t foreign_tlli; |
| 431 | uint32_t local_tlli = 0; |
| 432 | struct gprs_llc_lle *lle; |
| 433 | |
| 434 | /* DTAP - Attach Request */ |
| 435 | /* The P-TMSI is not known by the SGSN */ |
| 436 | static const unsigned char attach_req[] = { |
| 437 | 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, 0x05, 0xf4, |
| 438 | 0xfb, 0xc5, 0x46, 0x79, 0x11, 0x22, 0x33, 0x40, 0x50, 0x60, |
| 439 | 0x19, 0x18, 0xb3, 0x43, 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60, |
| 440 | 0x80, 0x9a, 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8, |
| 441 | 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00 |
| 442 | }; |
| 443 | |
| 444 | /* DTAP - Identity Response IMEI */ |
| 445 | static const unsigned char ident_resp_imei[] = { |
| 446 | 0x08, 0x16, 0x08, 0x9a, 0x78, 0x56, 0x34, 0x12, 0x90, 0x78, |
| 447 | 0x56 |
| 448 | }; |
| 449 | |
| 450 | /* DTAP - Identity Response IMSI */ |
| 451 | static const unsigned char ident_resp_imsi[] = { |
| 452 | 0x08, 0x16, 0x08, 0x19, 0x32, 0x54, 0x76, 0x98, 0x10, 0x32, |
| 453 | 0x54 |
| 454 | }; |
| 455 | |
| 456 | /* DTAP - Attach Complete */ |
| 457 | static const unsigned char attach_compl[] = { |
| 458 | 0x08, 0x03 |
| 459 | }; |
| 460 | |
| 461 | /* DTAP - Detach Request (MO) */ |
| 462 | /* normal detach, power_off = 0 */ |
| 463 | static const unsigned char detach_req[] = { |
| 464 | 0x08, 0x05, 0x01, 0x18, 0x05, 0xf4, 0xeb, 0x8b, |
| 465 | 0x45, 0x67, 0x19, 0x03, 0xb9, 0x97, 0xcb |
| 466 | }; |
| 467 | |
| 468 | printf("Testing GMM attach\n"); |
| 469 | |
| 470 | /* reset the PRNG used by sgsn_alloc_ptmsi */ |
| 471 | srand(1); |
| 472 | |
Jacob Erlbeck | 0a2c791 | 2014-11-24 14:40:28 +0100 | [diff] [blame] | 473 | ptmsi1 = sgsn_alloc_ptmsi(); |
| 474 | OSMO_ASSERT(ptmsi1 != GSM_RESERVED_TMSI); |
| 475 | |
| 476 | /* reset the PRNG, so that the same P-TMSI sequence will be generated |
| 477 | * again */ |
| 478 | srand(1); |
| 479 | |
Jacob Erlbeck | 79d438a | 2014-10-29 22:12:20 +0100 | [diff] [blame] | 480 | sgsn_acl_add("123456789012345", &sgsn->cfg); |
| 481 | |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 482 | foreign_tlli = gprs_tmsi2tlli(0xc0000023, TLLI_FOREIGN); |
| 483 | |
| 484 | /* Create a LLE/LLME */ |
| 485 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 486 | lle = gprs_lle_get_or_create(foreign_tlli, 3); |
| 487 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 488 | |
| 489 | /* inject the attach request */ |
| 490 | send_0408_message(lle->llme, foreign_tlli, |
| 491 | attach_req, ARRAY_SIZE(attach_req)); |
| 492 | |
| 493 | ctx = sgsn_mm_ctx_by_tlli(foreign_tlli, &raid); |
| 494 | OSMO_ASSERT(ctx != NULL); |
| 495 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
| 496 | |
| 497 | /* we expect an identity request (IMEI) */ |
| 498 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 499 | |
| 500 | /* inject the identity response (IMEI) */ |
| 501 | send_0408_message(ctx->llme, foreign_tlli, |
| 502 | ident_resp_imei, ARRAY_SIZE(ident_resp_imei)); |
| 503 | |
| 504 | /* we expect an identity request (IMSI) */ |
| 505 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 506 | |
| 507 | /* inject the identity response (IMSI) */ |
| 508 | send_0408_message(ctx->llme, foreign_tlli, |
| 509 | ident_resp_imsi, ARRAY_SIZE(ident_resp_imsi)); |
| 510 | |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 511 | /* check that the MM context has not been removed due to a failed |
| 512 | * authorization */ |
| 513 | OSMO_ASSERT(ctx == sgsn_mm_ctx_by_tlli(foreign_tlli, &raid)); |
| 514 | |
Jacob Erlbeck | 67318ef | 2014-10-28 16:23:46 +0100 | [diff] [blame] | 515 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 516 | |
| 517 | /* we expect an attach accept/reject */ |
| 518 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 519 | |
| 520 | /* this has been randomly assigned by the SGSN */ |
Jacob Erlbeck | 0a2c791 | 2014-11-24 14:40:28 +0100 | [diff] [blame] | 521 | local_tlli = gprs_tmsi2tlli(ptmsi1, TLLI_LOCAL); |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 522 | |
| 523 | /* inject the attach complete */ |
| 524 | send_0408_message(ctx->llme, local_tlli, |
| 525 | attach_compl, ARRAY_SIZE(attach_compl)); |
| 526 | |
| 527 | OSMO_ASSERT(ctx->mm_state == GMM_REGISTERED_NORMAL); |
| 528 | |
| 529 | /* we don't expect a response */ |
| 530 | OSMO_ASSERT(sgsn_tx_counter == 0); |
| 531 | |
| 532 | /* inject the detach */ |
| 533 | send_0408_message(ctx->llme, local_tlli, |
| 534 | detach_req, ARRAY_SIZE(detach_req)); |
| 535 | |
| 536 | /* verify that things are gone */ |
| 537 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 538 | ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid); |
| 539 | OSMO_ASSERT(!ictx); |
Jacob Erlbeck | 79d438a | 2014-10-29 22:12:20 +0100 | [diff] [blame] | 540 | |
| 541 | sgsn_acl_del("123456789012345", &sgsn->cfg); |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 542 | } |
| 543 | |
Jacob Erlbeck | 6f4bbd4 | 2014-11-06 13:43:41 +0100 | [diff] [blame] | 544 | /* |
| 545 | * Test the GMM Rejects |
| 546 | */ |
| 547 | static void test_gmm_reject(void) |
| 548 | { |
| 549 | struct gprs_ra_id raid = { 0, }; |
| 550 | struct sgsn_mm_ctx *ctx = NULL; |
| 551 | uint32_t foreign_tlli; |
| 552 | struct gprs_llc_lle *lle; |
| 553 | int idx; |
| 554 | |
| 555 | /* DTAP - Attach Request */ |
| 556 | /* Invalid MI length */ |
| 557 | static const unsigned char attach_req_inv_mi_len[] = { |
| 558 | 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, 0x09, 0xf4, |
| 559 | 0xfb, 0xc5, 0x46, 0x79, 0xff, 0xff, 0xff, 0xff, 0x11, 0x22, |
| 560 | 0x33, 0x40, 0x50, 0x60, 0x19, 0x18, 0xb3, 0x43, 0x2b, 0x25, |
| 561 | 0x96, 0x62, 0x00, 0x60, 0x80, 0x9a, 0xc2, 0xc6, 0x62, 0x00, |
| 562 | 0x60, 0x80, 0xba, 0xc8, 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00 |
| 563 | }; |
| 564 | |
| 565 | /* DTAP - Attach Request */ |
| 566 | /* Invalid MI type (IMEI) */ |
| 567 | static const unsigned char attach_req_inv_mi_type[] = { |
| 568 | 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, 0x05, 0xf2, |
| 569 | 0xfb, 0xc5, 0x46, 0x79, 0x11, 0x22, 0x33, 0x40, 0x50, 0x60, |
| 570 | 0x19, 0x18, 0xb3, 0x43, 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60, |
| 571 | 0x80, 0x9a, 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8, |
| 572 | 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00 |
| 573 | }; |
| 574 | |
| 575 | /* DTAP - Routing Area Update Request */ |
| 576 | static const unsigned char dtap_ra_upd_req[] = { |
| 577 | 0x08, 0x08, 0x10, 0x11, 0x22, 0x33, 0x40, 0x50, |
| 578 | 0x60, 0x1d, 0x19, 0x13, 0x42, 0x33, 0x57, 0x2b, |
| 579 | 0xf7, 0xc8, 0x48, 0x02, 0x13, 0x48, 0x50, 0xc8, |
| 580 | 0x48, 0x02, 0x14, 0x48, 0x50, 0xc8, 0x48, 0x02, |
| 581 | 0x17, 0x49, 0x10, 0xc8, 0x48, 0x02, 0x00, 0x19, |
| 582 | 0x8b, 0xb2, 0x92, 0x17, 0x16, 0x27, 0x07, 0x04, |
| 583 | 0x31, 0x02, 0xe5, 0xe0, 0x32, 0x02, 0x20, 0x00 |
| 584 | }; |
| 585 | |
| 586 | /* DTAP - Routing Area Update Request */ |
| 587 | /* Invalid type: GPRS_UPD_T_RA_LA_IMSI_ATT */ |
| 588 | static const unsigned char dtap_ra_upd_req_inv_type[] = { |
| 589 | 0x08, 0x08, 0x12, 0x11, 0x22, 0x33, 0x40, 0x50, |
| 590 | 0x60, 0x1d, 0x19, 0x13, 0x42, 0x33, 0x57, 0x2b, |
| 591 | 0xf7, 0xc8, 0x48, 0x02, 0x13, 0x48, 0x50, 0xc8, |
| 592 | 0x48, 0x02, 0x14, 0x48, 0x50, 0xc8, 0x48, 0x02, |
| 593 | 0x17, 0x49, 0x10, 0xc8, 0x48, 0x02, 0x00, 0x19, |
| 594 | 0x8b, 0xb2, 0x92, 0x17, 0x16, 0x27, 0x07, 0x04, |
| 595 | 0x31, 0x02, 0xe5, 0xe0, 0x32, 0x02, 0x20, 0x00 |
| 596 | }; |
| 597 | |
| 598 | /* DTAP - Routing Area Update Request */ |
| 599 | /* Invalid cap length */ |
| 600 | static const unsigned char dtap_ra_upd_req_inv_cap_len[] = { |
| 601 | 0x08, 0x08, 0x10, 0x11, 0x22, 0x33, 0x40, 0x50, |
| 602 | 0x60, 0x3d, 0x19, 0x13, 0x42, 0x33, 0x57, 0x2b, |
| 603 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 604 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 605 | 0xf7, 0xc8, 0x48, 0x02, 0x13, 0x48, 0x50, 0xc8, |
| 606 | 0x48, 0x02, 0x14, 0x48, 0x50, 0xc8, 0x48, 0x02, |
| 607 | 0x17, 0x49, 0x10, 0xc8, 0x48, 0x02, 0x00, 0x19, |
| 608 | 0x8b, 0xb2, 0x92, 0x17, 0x16, 0x27, 0x07, 0x04, |
| 609 | 0x31, 0x02, 0xe5, 0xe0, 0x32, 0x02, 0x20, 0x00 |
| 610 | }; |
| 611 | |
| 612 | struct test { |
| 613 | const char *title; |
| 614 | const unsigned char *msg; |
| 615 | unsigned msg_len; |
| 616 | unsigned num_resp; |
| 617 | |
| 618 | }; |
| 619 | static struct test tests[] = { |
| 620 | { |
| 621 | .title = "Attach Request (invalid MI length)", |
| 622 | .msg = attach_req_inv_mi_len, |
| 623 | .msg_len = sizeof(attach_req_inv_mi_len), |
| 624 | .num_resp = 1 /* Reject */ |
| 625 | |
| 626 | }, |
| 627 | { |
| 628 | .title = "Attach Request (invalid MI type)", |
| 629 | .msg = attach_req_inv_mi_type, |
| 630 | .msg_len = sizeof(attach_req_inv_mi_type), |
| 631 | .num_resp = 1 /* Reject */ |
| 632 | }, |
| 633 | { |
| 634 | .title = "Routing Area Update Request (valid)", |
| 635 | .msg = dtap_ra_upd_req, |
| 636 | .msg_len = sizeof(dtap_ra_upd_req), |
| 637 | .num_resp = 2 /* XID Reset + Reject */ |
| 638 | }, |
| 639 | { |
| 640 | .title = "Routing Area Update Request (invalid type)", |
| 641 | .msg = dtap_ra_upd_req_inv_type, |
| 642 | .msg_len = sizeof(dtap_ra_upd_req_inv_type), |
| 643 | .num_resp = 1 /* Reject */ |
| 644 | }, |
| 645 | { |
| 646 | .title = "Routing Area Update Request (invalid CAP length)", |
| 647 | .msg = dtap_ra_upd_req_inv_cap_len, |
| 648 | .msg_len = sizeof(dtap_ra_upd_req_inv_cap_len), |
| 649 | .num_resp = 1 /* Reject */ |
| 650 | }, |
| 651 | }; |
| 652 | |
| 653 | printf("Testing GMM reject\n"); |
| 654 | |
| 655 | /* reset the PRNG used by sgsn_alloc_ptmsi */ |
| 656 | srand(1); |
| 657 | |
| 658 | foreign_tlli = gprs_tmsi2tlli(0xc0000023, TLLI_FOREIGN); |
| 659 | |
| 660 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 661 | |
| 662 | for (idx = 0; idx < ARRAY_SIZE(tests); idx++) { |
| 663 | const struct test *test = &tests[idx]; |
| 664 | printf(" - %s\n", test->title); |
| 665 | |
| 666 | /* Create a LLE/LLME */ |
| 667 | lle = gprs_lle_get_or_create(foreign_tlli, 3); |
| 668 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 669 | |
| 670 | /* Inject the Request message */ |
| 671 | send_0408_message(lle->llme, foreign_tlli, |
| 672 | test->msg, test->msg_len); |
| 673 | |
| 674 | /* We expect a Reject message */ |
| 675 | fprintf(stderr, "sgsn_tx_counter = %d (expected %d)\n", |
| 676 | sgsn_tx_counter, test->num_resp); |
| 677 | OSMO_ASSERT(sgsn_tx_counter == test->num_resp); |
| 678 | |
| 679 | /* verify that LLME/MM are removed */ |
| 680 | ctx = sgsn_mm_ctx_by_tlli(foreign_tlli, &raid); |
| 681 | OSMO_ASSERT(ctx == NULL); |
| 682 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 683 | } |
| 684 | } |
| 685 | |
Jacob Erlbeck | e06476a | 2014-11-06 15:43:10 +0100 | [diff] [blame] | 686 | /* |
| 687 | * Test the dynamic allocation of P-TMSIs |
| 688 | */ |
| 689 | static void test_gmm_ptmsi_allocation(void) |
| 690 | { |
| 691 | struct gprs_ra_id raid = { 0, }; |
| 692 | struct sgsn_mm_ctx *ctx = NULL; |
| 693 | struct sgsn_mm_ctx *ictx; |
| 694 | uint32_t foreign_tlli; |
| 695 | uint32_t ptmsi1; |
| 696 | uint32_t ptmsi2; |
| 697 | uint32_t old_ptmsi; |
| 698 | uint32_t local_tlli = 0; |
| 699 | struct gprs_llc_lle *lle; |
| 700 | const enum sgsn_auth_policy saved_auth_policy = sgsn->cfg.auth_policy; |
| 701 | |
| 702 | /* DTAP - Attach Request (IMSI 12131415161718) */ |
| 703 | static const unsigned char attach_req[] = { |
| 704 | 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, |
| 705 | 0x08, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 706 | 0x18, 0x11, 0x22, 0x33, 0x40, 0x50, 0x60, 0x19, |
| 707 | 0x18, 0xb3, 0x43, 0x2b, 0x25, 0x96, 0x62, 0x00, |
| 708 | 0x60, 0x80, 0x9a, 0xc2, 0xc6, 0x62, 0x00, 0x60, |
| 709 | 0x80, 0xba, 0xc8, 0xc6, 0x62, 0x00, 0x60, 0x80, |
| 710 | 0x00, |
| 711 | }; |
| 712 | |
| 713 | /* DTAP - Identity Response IMEI */ |
| 714 | static const unsigned char ident_resp_imei[] = { |
| 715 | 0x08, 0x16, 0x08, 0x9a, 0x78, 0x56, 0x34, 0x12, 0x90, 0x78, |
| 716 | 0x56 |
| 717 | }; |
| 718 | |
| 719 | /* DTAP - Attach Complete */ |
| 720 | static const unsigned char attach_compl[] = { |
| 721 | 0x08, 0x03 |
| 722 | }; |
| 723 | |
| 724 | /* DTAP - Routing Area Update Request */ |
| 725 | static const unsigned char ra_upd_req[] = { |
| 726 | 0x08, 0x08, 0x10, 0x11, 0x22, 0x33, 0x40, 0x50, |
| 727 | 0x60, 0x1d, 0x19, 0x13, 0x42, 0x33, 0x57, 0x2b, |
| 728 | 0xf7, 0xc8, 0x48, 0x02, 0x13, 0x48, 0x50, 0xc8, |
| 729 | 0x48, 0x02, 0x14, 0x48, 0x50, 0xc8, 0x48, 0x02, |
| 730 | 0x17, 0x49, 0x10, 0xc8, 0x48, 0x02, 0x00, 0x19, |
| 731 | 0x8b, 0xb2, 0x92, 0x17, 0x16, 0x27, 0x07, 0x04, |
| 732 | 0x31, 0x02, 0xe5, 0xe0, 0x32, 0x02, 0x20, 0x00 |
| 733 | }; |
| 734 | |
| 735 | /* DTAP - Routing Area Update Complete */ |
| 736 | static const unsigned char ra_upd_complete[] = { |
| 737 | 0x08, 0x0a |
| 738 | }; |
| 739 | |
| 740 | /* DTAP - Detach Request (MO) */ |
| 741 | /* normal detach, power_off = 1 */ |
| 742 | static const unsigned char detach_req[] = { |
| 743 | 0x08, 0x05, 0x09, 0x18, 0x05, 0xf4, 0xef, 0xe2, |
| 744 | 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb |
| 745 | }; |
| 746 | |
| 747 | sgsn->cfg.auth_policy = SGSN_AUTH_POLICY_OPEN; |
| 748 | |
| 749 | printf("Testing P-TMSI allocation\n"); |
| 750 | |
| 751 | printf(" - sgsn_alloc_ptmsi\n"); |
| 752 | |
| 753 | /* reset the PRNG used by sgsn_alloc_ptmsi */ |
| 754 | srand(1); |
| 755 | |
| 756 | ptmsi1 = sgsn_alloc_ptmsi(); |
| 757 | OSMO_ASSERT(ptmsi1 != GSM_RESERVED_TMSI); |
| 758 | |
| 759 | ptmsi2 = sgsn_alloc_ptmsi(); |
| 760 | OSMO_ASSERT(ptmsi2 != GSM_RESERVED_TMSI); |
| 761 | |
| 762 | OSMO_ASSERT(ptmsi1 != ptmsi2); |
| 763 | |
| 764 | printf(" - Repeated Attach Request\n"); |
| 765 | |
| 766 | /* reset the PRNG, so that the same P-TMSI will be generated |
| 767 | * again */ |
| 768 | srand(1); |
| 769 | |
| 770 | foreign_tlli = gprs_tmsi2tlli(0xc0000023, TLLI_FOREIGN); |
| 771 | |
| 772 | /* Create a LLE/LLME */ |
| 773 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 774 | lle = gprs_lle_get_or_create(foreign_tlli, 3); |
| 775 | OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| 776 | |
| 777 | /* inject the attach request */ |
| 778 | send_0408_message(lle->llme, foreign_tlli, |
| 779 | attach_req, ARRAY_SIZE(attach_req)); |
| 780 | |
| 781 | ctx = sgsn_mm_ctx_by_tlli(foreign_tlli, &raid); |
| 782 | OSMO_ASSERT(ctx != NULL); |
| 783 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
| 784 | OSMO_ASSERT(ctx->p_tmsi == ptmsi1); |
| 785 | |
| 786 | old_ptmsi = ctx->p_tmsi_old; |
| 787 | |
| 788 | /* we expect an identity request (IMEI) */ |
| 789 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 790 | |
| 791 | /* inject the identity response (IMEI) */ |
| 792 | send_0408_message(ctx->llme, foreign_tlli, |
| 793 | ident_resp_imei, ARRAY_SIZE(ident_resp_imei)); |
| 794 | |
| 795 | /* check that the MM context has not been removed due to a failed |
| 796 | * authorization */ |
| 797 | OSMO_ASSERT(ctx == sgsn_mm_ctx_by_tlli(foreign_tlli, &raid)); |
| 798 | |
| 799 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
| 800 | OSMO_ASSERT(ctx->p_tmsi == ptmsi1); |
| 801 | |
| 802 | /* we expect an attach accept */ |
| 803 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 804 | |
| 805 | /* we ignore this and send the attach again */ |
| 806 | send_0408_message(lle->llme, foreign_tlli, |
| 807 | attach_req, ARRAY_SIZE(attach_req)); |
| 808 | |
| 809 | /* the allocated P-TMSI should be the same */ |
| 810 | ctx = sgsn_mm_ctx_by_tlli(foreign_tlli, &raid); |
| 811 | OSMO_ASSERT(ctx != NULL); |
| 812 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
| 813 | OSMO_ASSERT(ctx->p_tmsi_old == old_ptmsi); |
| 814 | OSMO_ASSERT(ctx->p_tmsi == ptmsi1); |
| 815 | |
| 816 | /* inject the attach complete */ |
| 817 | local_tlli = gprs_tmsi2tlli(ptmsi1, TLLI_LOCAL); |
| 818 | send_0408_message(ctx->llme, local_tlli, |
| 819 | attach_compl, ARRAY_SIZE(attach_compl)); |
| 820 | |
| 821 | /* we don't expect a response */ |
| 822 | OSMO_ASSERT(sgsn_tx_counter == 0); |
| 823 | |
| 824 | OSMO_ASSERT(ctx->mm_state == GMM_REGISTERED_NORMAL); |
| 825 | OSMO_ASSERT(ctx->p_tmsi_old == 0); |
| 826 | OSMO_ASSERT(ctx->p_tmsi == ptmsi1); |
| 827 | |
| 828 | printf(" - Repeated RA Update Request\n"); |
| 829 | |
| 830 | /* inject the RA update request */ |
| 831 | send_0408_message(ctx->llme, local_tlli, |
| 832 | ra_upd_req, ARRAY_SIZE(ra_upd_req)); |
| 833 | |
| 834 | /* we expect an RA update accept */ |
| 835 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 836 | |
| 837 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
| 838 | OSMO_ASSERT(ctx->p_tmsi_old == ptmsi1); |
| 839 | OSMO_ASSERT(ctx->p_tmsi == ptmsi2); |
| 840 | |
| 841 | /* repeat the RA update request */ |
| 842 | send_0408_message(ctx->llme, local_tlli, |
| 843 | ra_upd_req, ARRAY_SIZE(ra_upd_req)); |
| 844 | |
| 845 | /* we expect an RA update accept */ |
| 846 | OSMO_ASSERT(sgsn_tx_counter == 1); |
| 847 | |
| 848 | OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); |
| 849 | OSMO_ASSERT(ctx->p_tmsi_old == ptmsi1); |
| 850 | OSMO_ASSERT(ctx->p_tmsi == ptmsi2); |
| 851 | |
| 852 | /* inject the RA update complete */ |
| 853 | local_tlli = gprs_tmsi2tlli(ptmsi2, TLLI_LOCAL); |
| 854 | send_0408_message(ctx->llme, local_tlli, |
| 855 | ra_upd_complete, ARRAY_SIZE(ra_upd_complete)); |
| 856 | |
| 857 | /* we don't expect a response */ |
| 858 | OSMO_ASSERT(sgsn_tx_counter == 0); |
| 859 | |
| 860 | OSMO_ASSERT(ctx->mm_state == GMM_REGISTERED_NORMAL); |
| 861 | OSMO_ASSERT(ctx->p_tmsi_old == 0); |
| 862 | OSMO_ASSERT(ctx->p_tmsi == ptmsi2); |
| 863 | |
| 864 | /* inject the detach */ |
| 865 | send_0408_message(ctx->llme, local_tlli, |
| 866 | detach_req, ARRAY_SIZE(detach_req)); |
| 867 | |
| 868 | /* verify that things are gone */ |
| 869 | OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| 870 | ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid); |
| 871 | OSMO_ASSERT(!ictx); |
| 872 | |
| 873 | sgsn->cfg.auth_policy = saved_auth_policy; |
| 874 | } |
| 875 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 876 | static struct log_info_cat gprs_categories[] = { |
| 877 | [DMM] = { |
| 878 | .name = "DMM", |
| 879 | .description = "Layer3 Mobility Management (MM)", |
| 880 | .color = "\033[1;33m", |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 881 | .enabled = 1, .loglevel = LOGL_DEBUG, |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 882 | }, |
| 883 | [DPAG] = { |
| 884 | .name = "DPAG", |
| 885 | .description = "Paging Subsystem", |
| 886 | .color = "\033[1;38m", |
| 887 | .enabled = 1, .loglevel = LOGL_NOTICE, |
| 888 | }, |
| 889 | [DMEAS] = { |
| 890 | .name = "DMEAS", |
| 891 | .description = "Radio Measurement Processing", |
| 892 | .enabled = 0, .loglevel = LOGL_NOTICE, |
| 893 | }, |
| 894 | [DREF] = { |
| 895 | .name = "DREF", |
| 896 | .description = "Reference Counting", |
| 897 | .enabled = 0, .loglevel = LOGL_NOTICE, |
| 898 | }, |
| 899 | [DGPRS] = { |
| 900 | .name = "DGPRS", |
| 901 | .description = "GPRS Packet Service", |
| 902 | .enabled = 1, .loglevel = LOGL_DEBUG, |
| 903 | }, |
| 904 | [DNS] = { |
| 905 | .name = "DNS", |
| 906 | .description = "GPRS Network Service (NS)", |
| 907 | .enabled = 1, .loglevel = LOGL_INFO, |
| 908 | }, |
| 909 | [DBSSGP] = { |
| 910 | .name = "DBSSGP", |
| 911 | .description = "GPRS BSS Gateway Protocol (BSSGP)", |
| 912 | .enabled = 1, .loglevel = LOGL_DEBUG, |
| 913 | }, |
| 914 | [DLLC] = { |
| 915 | .name = "DLLC", |
| 916 | .description = "GPRS Logical Link Control Protocol (LLC)", |
| 917 | .enabled = 1, .loglevel = LOGL_DEBUG, |
| 918 | }, |
| 919 | [DSNDCP] = { |
| 920 | .name = "DSNDCP", |
| 921 | .description = "GPRS Sub-Network Dependent Control Protocol (SNDCP)", |
| 922 | .enabled = 1, .loglevel = LOGL_DEBUG, |
| 923 | }, |
| 924 | }; |
| 925 | |
| 926 | static struct log_info info = { |
| 927 | .cat = gprs_categories, |
| 928 | .num_cat = ARRAY_SIZE(gprs_categories), |
| 929 | }; |
| 930 | |
Holger Hans Peter Freyther | 232f621 | 2014-09-30 09:10:25 +0200 | [diff] [blame] | 931 | int main(int argc, char **argv) |
| 932 | { |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 933 | osmo_init_logging(&info); |
| 934 | tall_bsc_ctx = talloc_named_const(NULL, 0, "osmo_sgsn"); |
| 935 | tall_msgb_ctx = talloc_named_const(tall_bsc_ctx, 0, "msgb"); |
| 936 | |
Jacob Erlbeck | b2acd74 | 2014-11-13 10:48:39 +0100 | [diff] [blame] | 937 | sgsn_auth_init(); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame^] | 938 | gprs_subscr_init(sgsn); |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 939 | |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 940 | test_llme(); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame^] | 941 | test_subscriber(); |
Holger Hans Peter Freyther | 9424684 | 2014-10-02 22:24:47 +0200 | [diff] [blame] | 942 | test_gmm_detach(); |
Jacob Erlbeck | 0b2da87 | 2014-10-27 14:34:13 +0100 | [diff] [blame] | 943 | test_gmm_detach_power_off(); |
Jacob Erlbeck | 42d284f | 2014-10-21 13:09:55 +0200 | [diff] [blame] | 944 | test_gmm_detach_no_mmctx(); |
Jacob Erlbeck | 021a0d1 | 2014-11-24 15:04:15 +0100 | [diff] [blame] | 945 | test_gmm_detach_accept_unexpected(); |
Jacob Erlbeck | b35ee6b | 2014-10-28 09:47:03 +0100 | [diff] [blame] | 946 | test_gmm_status_no_mmctx(); |
Jacob Erlbeck | 7c24b3e | 2014-10-29 12:11:58 +0100 | [diff] [blame] | 947 | test_gmm_attach(); |
Jacob Erlbeck | 6f4bbd4 | 2014-11-06 13:43:41 +0100 | [diff] [blame] | 948 | test_gmm_reject(); |
Jacob Erlbeck | e06476a | 2014-11-06 15:43:10 +0100 | [diff] [blame] | 949 | test_gmm_ptmsi_allocation(); |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 950 | printf("Done\n"); |
Holger Hans Peter Freyther | 232f621 | 2014-09-30 09:10:25 +0200 | [diff] [blame] | 951 | return 0; |
| 952 | } |
Holger Hans Peter Freyther | 49dbcd9 | 2014-10-02 21:27:24 +0200 | [diff] [blame] | 953 | |
| 954 | |
| 955 | /* stubs */ |
| 956 | struct osmo_prim_hdr; |
| 957 | int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| 958 | { |
| 959 | abort(); |
| 960 | } |