Holger Hans Peter Freyther | ac96770 | 2009-07-29 07:37:48 +0200 | [diff] [blame] | 1 | /* |
| 2 | * SCCP testing code |
| 3 | * |
| 4 | * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 5 | * (C) 2009 by on-waves.com |
| 6 | * |
| 7 | * All Rights Reserved |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 21 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | |
| 27 | #include <arpa/inet.h> |
| 28 | |
| 29 | #include <sccp/sccp.h> |
| 30 | #include <openbsc/gsm_data.h> |
| 31 | #include <openbsc/debug.h> |
| 32 | |
| 33 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) |
| 34 | |
| 35 | /* BSC -> MSC */ |
| 36 | static const u_int8_t bssmap_reset[] = { |
| 37 | 0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe, |
| 38 | 0x02, 0x42, 0xfe, 0x06, 0x00, 0x04, 0x30, 0x04, |
| 39 | 0x01, 0x20, |
| 40 | }; |
| 41 | |
| 42 | /* MSC -> BSC reset ack */ |
| 43 | static const u_int8_t bssmap_reset_ack[] = { |
| 44 | 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01, |
| 45 | 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x03, |
| 46 | 0x00, 0x01, 0x31, |
| 47 | }; |
| 48 | |
| 49 | /* MSC -> BSC paging, connection less */ |
| 50 | static const u_int8_t bssmap_paging[] = { |
| 51 | 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01, |
| 52 | 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x10, |
| 53 | 0x00, 0x0e, 0x52, 0x08, 0x08, 0x29, 0x47, 0x10, |
| 54 | 0x02, 0x01, 0x31, 0x97, 0x61, 0x1a, 0x01, 0x06, |
| 55 | }; |
| 56 | |
| 57 | /* MSC -> BSC paging, UDT without PC */ |
| 58 | static const u_int8_t bssmap_udt[] = { |
| 59 | 0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe, |
| 60 | 0x02, 0x42, 0xfe, 0x10, 0x00, 0x0e, 0x52, 0x08, |
| 61 | 0x08, 0x29, 0x47, 0x10, 0x02, 0x01, 0x31, 0x97, |
| 62 | 0x61, 0x1a, 0x01, 0x06, |
| 63 | }; |
| 64 | |
| 65 | /* BSC -> MSC connection open */ |
| 66 | static const u_int8_t bssmap_cr[] = { |
| 67 | 0x01, 0x01, 0x02, 0x03, 0x02, 0x02, 0x04, 0x02, |
| 68 | 0x42, 0xfe, 0x0f, 0x1f, 0x00, 0x1d, 0x57, 0x05, |
| 69 | 0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x12, 0xc3, |
| 70 | 0x50, 0x17, 0x10, 0x05, 0x24, 0x11, 0x03, 0x33, |
| 71 | 0x19, 0xa2, 0x08, 0x29, 0x47, 0x10, 0x02, 0x01, |
| 72 | 0x31, 0x97, 0x61, 0x00 |
| 73 | }; |
| 74 | |
| 75 | /* MSC -> BSC connection confirm */ |
| 76 | static const u_int8_t bssmap_cc[] = { |
| 77 | 0x02, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, |
| 78 | }; |
| 79 | |
| 80 | /* MSC -> BSC DTAP |
| 81 | * |
| 82 | * we fake a bit and make it BSC -> MSC... so the |
| 83 | * payload does not make any sense.. |
| 84 | */ |
| 85 | static const u_int8_t bssmap_dtap[] = { |
| 86 | 0x06, 0x00, 0x00, 0x03, 0x00, 0x01, 0x0f, 0x01, 0x00, 0x0c, |
| 87 | 0x03, 0x05, 0x5c, 0x08, 0x11, 0x81, 0x33, 0x66, 0x02, 0x13, |
| 88 | 0x45, 0xf4, |
| 89 | }; |
| 90 | |
| 91 | /* MSC -> BSC clear command */ |
| 92 | static const u_int8_t bssmap_clear[] = { |
| 93 | 0x06, 0x00, 0x00, 0x03, 0x00, 0x01, 0x06, 0x00, 0x04, 0x20, |
| 94 | 0x04, 0x01, 0x09, |
| 95 | }; |
| 96 | |
| 97 | /* MSC -> BSC released */ |
| 98 | static const u_int8_t bssmap_released[] = { |
| 99 | 0x04, 0x00, 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x01, 0x0f, |
| 100 | 0x02, 0x23, 0x42, 0x00, |
| 101 | }; |
| 102 | |
| 103 | /* BSC -> MSC released */ |
| 104 | static const u_int8_t bssmap_release_complete[] = { |
| 105 | 0x05, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03 |
| 106 | }; |
| 107 | |
| 108 | struct test_data { |
| 109 | int length; |
| 110 | const u_int8_t *data; |
| 111 | int payload_start; |
| 112 | int payload_length; |
| 113 | u_int8_t first_byte; |
| 114 | |
| 115 | /* in case it should trigger a sccp response */ |
| 116 | int write; |
| 117 | const u_int8_t *response; |
| 118 | int response_length; |
| 119 | }; |
| 120 | |
| 121 | static const struct test_data test_data[] = { |
| 122 | { |
| 123 | .length = ARRAY_SIZE(bssmap_reset), |
| 124 | .data = &bssmap_reset[0], |
| 125 | .payload_start = 12, |
| 126 | .payload_length = ARRAY_SIZE(bssmap_reset) - 12, |
| 127 | .first_byte = 0x0, |
| 128 | }, |
| 129 | { |
| 130 | .length = ARRAY_SIZE(bssmap_reset_ack), |
| 131 | .data = &bssmap_reset_ack[0], |
| 132 | .payload_start = 16, |
| 133 | .payload_length = ARRAY_SIZE(bssmap_reset_ack) - 16, |
| 134 | .first_byte = 0x0, |
| 135 | }, |
| 136 | { |
| 137 | .length = ARRAY_SIZE(bssmap_paging), |
| 138 | .data = &bssmap_paging[0], |
| 139 | .payload_start = 16, |
| 140 | .payload_length = ARRAY_SIZE(bssmap_paging) - 16, |
| 141 | .first_byte = 0x0, |
| 142 | }, |
| 143 | { |
| 144 | .length = ARRAY_SIZE(bssmap_cr), |
| 145 | .data = &bssmap_cr[0], |
| 146 | .payload_start = 12, |
| 147 | /* 0x00 is end of optional data, subtract this byte */ |
| 148 | .payload_length = 31, |
| 149 | .first_byte = 0x0, |
| 150 | |
| 151 | /* the connection request should trigger a connection confirm */ |
| 152 | .write = 1, |
| 153 | .response = &bssmap_cc[0], |
| 154 | .response_length= ARRAY_SIZE(bssmap_cc), |
| 155 | }, |
| 156 | { |
| 157 | .length = ARRAY_SIZE(bssmap_dtap), |
| 158 | .data = &bssmap_dtap[0], |
| 159 | .payload_start = 7, |
| 160 | .payload_length = 15, |
| 161 | .first_byte = 0x01, |
| 162 | }, |
| 163 | { |
| 164 | .length = ARRAY_SIZE(bssmap_clear), |
| 165 | .data = &bssmap_clear[0], |
| 166 | .payload_start = 7, |
| 167 | .payload_length = 6, |
| 168 | .first_byte = 0x00, |
| 169 | }, |
| 170 | { |
| 171 | .length = ARRAY_SIZE(bssmap_released), |
| 172 | .data = &bssmap_released[0], |
| 173 | .payload_length = 2, |
| 174 | .payload_start = 11, |
| 175 | .first_byte = 0x23, |
| 176 | |
| 177 | .write = 1, |
| 178 | .response = &bssmap_release_complete[0], |
| 179 | .response_length= ARRAY_SIZE(bssmap_release_complete), |
| 180 | }, |
| 181 | }; |
| 182 | |
| 183 | /* we will send UDTs and verify they look like this */ |
| 184 | static const struct test_data send_data[] = { |
| 185 | { |
| 186 | .length = ARRAY_SIZE(bssmap_udt), |
| 187 | .data = &bssmap_udt[0], |
| 188 | .payload_start = 12, |
| 189 | .payload_length = ARRAY_SIZE(bssmap_udt) - 12, |
| 190 | .first_byte = 0x0, |
| 191 | }, |
| 192 | { |
| 193 | .length = ARRAY_SIZE(bssmap_reset), |
| 194 | .data = &bssmap_reset[0], |
| 195 | .payload_start = 12, |
| 196 | .payload_length = ARRAY_SIZE(bssmap_reset) - 12, |
| 197 | .first_byte = 0x0, |
| 198 | }, |
| 199 | }; |
| 200 | |
| 201 | struct connection_test { |
| 202 | /* should the connection be refused? */ |
| 203 | int refuse; |
| 204 | |
| 205 | int with_data; |
| 206 | |
| 207 | /* on which side to close the connection? */ |
| 208 | int close_side; |
| 209 | int close_cause; |
| 210 | }; |
| 211 | |
| 212 | /* sccp connection handling we want to test */ |
| 213 | static const struct connection_test connection_tests[] = { |
| 214 | { |
| 215 | .refuse = 1, |
| 216 | }, |
| 217 | { |
| 218 | .refuse = 1, |
| 219 | .with_data = 1, |
| 220 | }, |
| 221 | { |
| 222 | .refuse = 0, |
| 223 | .close_side = 0, |
| 224 | .close_cause = 5, |
| 225 | }, |
| 226 | { |
| 227 | .refuse = 0, |
| 228 | .close_side = 0, |
| 229 | .close_cause = 5, |
| 230 | .with_data = 1, |
| 231 | }, |
| 232 | { |
| 233 | .refuse = 0, |
| 234 | .close_side = 1, |
| 235 | .close_cause = 5, |
| 236 | }, |
| 237 | { |
| 238 | .refuse = 0, |
| 239 | .close_side = 1, |
| 240 | .close_cause = 5, |
| 241 | .with_data = 1, |
| 242 | }, |
| 243 | }; |
| 244 | |
| 245 | /* testing procedure: |
| 246 | * - we will use sccp_write and see what will be set in the |
| 247 | * outgoing callback |
| 248 | * - we will call sccp_system_incoming and see which calls |
| 249 | * are made. And then compare it to the ones we expect. We |
| 250 | * want the payload to arrive, or callbacks to be called. |
| 251 | * - we will use sccp_connection_socket and sccp_connection_write |
| 252 | * and verify state handling of connections |
| 253 | */ |
| 254 | |
| 255 | static int current_test; |
| 256 | |
| 257 | /* |
| 258 | * test state... |
| 259 | */ |
| 260 | static int called = 0; |
| 261 | static int matched = 0; |
| 262 | static int write_called = 0; |
| 263 | |
| 264 | #define FAIL(x, args...) printf("FAILURE in %s:%d: " x, __FILE__, __LINE__, ## args) |
| 265 | |
| 266 | /* |
| 267 | * writing these packets and expecting a result |
| 268 | */ |
| 269 | int sccp_read_cb(struct msgb *data, unsigned len, void *context) |
| 270 | { |
| 271 | u_int16_t payload_length = test_data[current_test].payload_length; |
| 272 | const u_int8_t *got, *wanted; |
| 273 | int i; |
| 274 | |
| 275 | called = 1; |
| 276 | |
| 277 | if (msgb_l3len(data) < len) { |
| 278 | /* this should never be reached */ |
| 279 | FAIL("Something horrible happened.. invalid packet..\n"); |
| 280 | exit(-1); |
| 281 | } |
| 282 | |
| 283 | if (len == 0 || len != payload_length) { |
| 284 | FAIL("length mismatch: got: %d wanted: %d\n", msgb_l3len(data), payload_length); |
| 285 | return -1; |
| 286 | } |
| 287 | |
| 288 | if (data->l3h[0] != test_data[current_test].first_byte) { |
| 289 | FAIL("The first bytes of l3 do not match: 0x%x 0x%x\n", |
| 290 | data->l3h[0], test_data[current_test].first_byte); |
| 291 | return -1; |
| 292 | } |
| 293 | |
| 294 | got = &data->l3h[0]; |
| 295 | wanted = test_data[current_test].data + test_data[current_test].payload_start; |
| 296 | |
| 297 | for (i = 0; i < len; ++i) { |
| 298 | if (got[i] != wanted[i]) { |
| 299 | FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n", |
| 300 | got[i], wanted[i], i); |
| 301 | return -1; |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | matched = 1; |
| 306 | return 0; |
| 307 | } |
| 308 | |
| 309 | int sccp_write_cb(struct msgb *data, void *ctx) |
| 310 | { |
| 311 | int i = 0; |
| 312 | const u_int8_t *got, *wanted; |
| 313 | |
| 314 | if (test_data[current_test].response == NULL) { |
| 315 | FAIL("Didn't expect write callback\n"); |
| 316 | return -1; |
| 317 | } else if (test_data[current_test].response_length != msgb_l2len(data)) { |
| 318 | FAIL("Size does not match. Got: %d Wanted: %d\n", |
| 319 | msgb_l2len(data), test_data[current_test].response_length); |
| 320 | } |
| 321 | |
| 322 | got = &data->l2h[0]; |
| 323 | wanted = test_data[current_test].response; |
| 324 | |
| 325 | for (i = 0; i < msgb_l2len(data); ++i) { |
| 326 | if (got[i] != wanted[i]) { |
| 327 | FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n", |
| 328 | got[i], wanted[i], i); |
| 329 | return -1; |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | write_called = 1; |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | void sccp_c_read(struct sccp_connection *connection, struct msgb *msgb, unsigned int len) |
| 338 | { |
| 339 | sccp_read_cb(msgb, len, connection->data_ctx); |
| 340 | } |
| 341 | |
| 342 | void sccp_c_state(struct sccp_connection *connection, int old_state) |
| 343 | { |
| 344 | if (connection->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) |
| 345 | sccp_connection_free(connection); |
| 346 | } |
| 347 | |
| 348 | int sccp_accept_cb(struct sccp_connection *connection, void *user_data) |
| 349 | { |
| 350 | called = 1; |
| 351 | unsigned int ref = 0; |
| 352 | ref |= connection->destination_local_reference.octet1 << 24; |
| 353 | ref |= connection->destination_local_reference.octet2 << 16; |
| 354 | ref |= connection->destination_local_reference.octet3 << 8; |
| 355 | ref = ntohl(ref); |
| 356 | |
| 357 | connection->data_cb = sccp_c_read; |
| 358 | connection->state_cb = sccp_c_state; |
| 359 | |
| 360 | /* accept this */ |
| 361 | return 0; |
| 362 | } |
| 363 | |
| 364 | static int sccp_udt_write_cb(struct msgb *data, void *context) |
| 365 | { |
| 366 | const u_int8_t *got, *wanted; |
| 367 | int i; |
| 368 | |
| 369 | write_called = 1; |
| 370 | |
| 371 | if (send_data[current_test].length != msgb_l2len(data)) { |
| 372 | FAIL("Size does not match. Got: %d Wanted: %d\n", |
| 373 | msgb_l2len(data), send_data[current_test].length); |
| 374 | return -1; |
| 375 | } |
| 376 | |
| 377 | got = &data->l2h[0]; |
| 378 | wanted = send_data[current_test].data; |
| 379 | |
| 380 | for (i = 0; i < msgb_l2len(data); ++i) { |
| 381 | if (got[i] != wanted[i]) { |
| 382 | FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n", |
| 383 | got[i], wanted[i], i); |
| 384 | return -1; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | matched = 1; |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | static void test_sccp_system(void) |
| 393 | { |
| 394 | sccp_system_init(sccp_write_cb, NULL); |
| 395 | sccp_set_read(&sccp_ssn_bssap, sccp_read_cb, NULL); |
| 396 | sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_accept_cb, NULL); |
| 397 | |
| 398 | for (current_test = 0; current_test < ARRAY_SIZE(test_data); ++current_test) { |
| 399 | unsigned int length = test_data[current_test].length; |
| 400 | struct msgb *msg = msgb_alloc_headroom(length + 2, 2, __func__); |
| 401 | msg->l2h = msgb_put(msg, length); |
| 402 | memcpy(msg->l2h, test_data[current_test].data, length); |
| 403 | |
| 404 | called = matched = write_called = 0; |
| 405 | printf("Testing packet: %d\n", current_test); |
| 406 | sccp_system_incoming(msg); |
| 407 | |
| 408 | if (!called || !matched || (test_data[current_test].write != write_called)) |
| 409 | FAIL("current test: %d called: %d matched: %d write: %d\n", |
| 410 | current_test, called, matched, write_called); |
| 411 | |
| 412 | msgb_free(msg); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | /* test sending of udt */ |
| 417 | static void test_sccp_send_udt(void) |
| 418 | { |
| 419 | sccp_system_init(sccp_udt_write_cb, NULL); |
| 420 | sccp_set_read(NULL, NULL, NULL); |
| 421 | sccp_connection_set_incoming(NULL, NULL, NULL); |
| 422 | |
| 423 | for (current_test = 0; current_test < ARRAY_SIZE(send_data); ++current_test) { |
| 424 | const struct test_data *test = &send_data[current_test]; |
| 425 | |
| 426 | struct msgb *msg = msgb_alloc(test->payload_length, __func__); |
| 427 | msg->l3h = msgb_put(msg, test->payload_length); |
| 428 | memcpy(msg->l3h, test->data + test->payload_start, test->payload_length); |
| 429 | |
| 430 | matched = write_called = 0; |
| 431 | printf("Testing packet: %d\n", current_test); |
| 432 | sccp_write(msg, &sccp_ssn_bssap, &sccp_ssn_bssap, 0); |
| 433 | |
| 434 | if (!matched || !write_called) |
| 435 | FAIL("current test: %d matched: %d write: %d\n", |
| 436 | current_test, matched, write_called); |
| 437 | |
| 438 | msgb_free(msg); |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | /* send udt from one end to another */ |
| 443 | static unsigned int test_value = 0x2442; |
| 444 | static int sccp_udt_read(struct msgb *data, unsigned int len, void *context) |
| 445 | { |
| 446 | unsigned int *val; |
| 447 | |
| 448 | if (len != 4) { |
| 449 | FAIL("Wrong size: %d\n", msgb_l3len(data)); |
| 450 | return -1; |
| 451 | } |
| 452 | |
| 453 | val = (unsigned int*)data->l3h; |
| 454 | matched = test_value == *val; |
| 455 | |
| 456 | return 0; |
| 457 | } |
| 458 | |
| 459 | static int sccp_write_loop(struct msgb *data, void *context) |
| 460 | { |
| 461 | /* send it back to us */ |
| 462 | sccp_system_incoming(data); |
| 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | static void test_sccp_udt_communication(void) |
| 467 | { |
| 468 | struct msgb *data; |
| 469 | unsigned int *val; |
| 470 | |
| 471 | sccp_system_init(sccp_write_loop, NULL); |
| 472 | sccp_set_read(&sccp_ssn_bssap, sccp_udt_read, NULL); |
| 473 | sccp_connection_set_incoming(NULL, NULL, NULL); |
| 474 | |
| 475 | |
| 476 | data = msgb_alloc(4, "test data"); |
| 477 | data->l3h = &data->data[0]; |
| 478 | val = (unsigned int *)msgb_put(data, 4); |
| 479 | *val = test_value; |
| 480 | |
| 481 | matched = 0; |
| 482 | sccp_write(data, &sccp_ssn_bssap, &sccp_ssn_bssap, 0); |
| 483 | |
| 484 | if (!matched) |
| 485 | FAIL("Talking with us didn't work\n"); |
| 486 | |
| 487 | msgb_free(data); |
| 488 | } |
| 489 | |
| 490 | |
| 491 | /* connection testing... open, send, close */ |
| 492 | static const struct connection_test *current_con_test; |
| 493 | static struct sccp_connection *outgoing_con; |
| 494 | static struct sccp_connection *incoming_con; |
| 495 | static int outgoing_data, incoming_data, incoming_state, outgoing_state; |
| 496 | |
| 497 | static struct msgb *test_data1, *test_data2, *test_data3; |
| 498 | |
| 499 | static void sccp_conn_in_state(struct sccp_connection *conn, int old_state) |
| 500 | { |
| 501 | printf("\tincome: %d -> %d\n", old_state, conn->connection_state); |
| 502 | if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) { |
| 503 | if (conn == incoming_con) { |
| 504 | sccp_connection_free(conn); |
| 505 | incoming_con = NULL; |
| 506 | } |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | static void sccp_conn_in_data(struct sccp_connection *conn, struct msgb *msg, unsigned int len) |
| 511 | { |
| 512 | /* compare the data */ |
| 513 | ++incoming_data; |
| 514 | printf("\tincoming data: %d\n", len); |
| 515 | |
| 516 | /* compare the data */ |
| 517 | if (len != 4) { |
| 518 | FAIL("Length of packet is wrong: %u %u\n", msgb_l3len(msg), len); |
| 519 | return; |
| 520 | } |
| 521 | |
| 522 | if (incoming_data == 1) { |
| 523 | if (memcmp(msg->l3h, test_data1->l3h, len) != 0) { |
| 524 | FAIL("Comparing the data failed: %d\n", incoming_data); |
| 525 | incoming_state = 0; |
| 526 | printf("Got: %s\n", hexdump(msg->l3h, len)); |
| 527 | printf("Wanted: %s\n", hexdump(test_data1->l3h, len)); |
| 528 | |
| 529 | } |
| 530 | } else if (incoming_data == 2) { |
| 531 | if (memcmp(msg->l3h, test_data2->l3h, len) != 0) { |
| 532 | FAIL("Comparing the data failed: %d\n", incoming_data); |
| 533 | incoming_state = 0; |
| 534 | printf("Got: %s\n", hexdump(msg->l3h, len)); |
| 535 | printf("Wanted: %s\n", hexdump(test_data2->l3h, len)); |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | /* sending out data */ |
| 540 | if (incoming_data == 2) { |
| 541 | printf("\tReturning data3\n"); |
| 542 | sccp_connection_write(conn, test_data3); |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | static int sccp_conn_accept(struct sccp_connection *conn, void *ctx) |
| 547 | { |
| 548 | printf("\taccept: %p\n", conn); |
| 549 | conn->state_cb = sccp_conn_in_state; |
| 550 | conn->data_cb = sccp_conn_in_data; |
| 551 | |
| 552 | if (current_con_test->refuse) |
| 553 | return -1; |
| 554 | |
| 555 | incoming_con = conn; |
| 556 | return 0; |
| 557 | } |
| 558 | |
| 559 | /* callbacks for the outgoing side */ |
| 560 | static void sccp_conn_out_state(struct sccp_connection *conn, int old_state) |
| 561 | { |
| 562 | printf("\toutgoing: %p %d -> %d\n", conn, old_state, conn->connection_state); |
| 563 | |
| 564 | if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) { |
| 565 | if (conn == outgoing_con) { |
| 566 | sccp_connection_free(conn); |
| 567 | outgoing_con = NULL; |
| 568 | } |
| 569 | } |
| 570 | } |
| 571 | |
| 572 | static void sccp_conn_out_data(struct sccp_connection *conn, struct msgb *msg, unsigned int len) |
| 573 | { |
| 574 | ++outgoing_data; |
| 575 | printf("\toutgoing data: %p %d\n", conn, len); |
| 576 | |
| 577 | if (len != 4) |
| 578 | FAIL("Length of packet is wrong: %u %u\n", msgb_l3len(msg), len); |
| 579 | |
| 580 | if (outgoing_data == 1) { |
| 581 | if (memcmp(msg->l3h, test_data3->l3h, len) != 0) { |
| 582 | FAIL("Comparing the data failed\n"); |
| 583 | outgoing_state = 0; |
| 584 | } |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | static void do_test_sccp_connection(const struct connection_test *test) |
| 589 | { |
| 590 | int ret; |
| 591 | |
| 592 | current_con_test = test; |
| 593 | outgoing_con = incoming_con = 0; |
| 594 | |
| 595 | outgoing_con = sccp_connection_socket(); |
| 596 | if (!outgoing_con) { |
| 597 | FAIL("Connection is NULL\n"); |
| 598 | return; |
| 599 | } |
| 600 | |
| 601 | outgoing_con->state_cb = sccp_conn_out_state; |
| 602 | outgoing_con->data_cb = sccp_conn_out_data; |
| 603 | outgoing_data = incoming_data = 0; |
| 604 | incoming_state = outgoing_state = 1; |
| 605 | |
| 606 | /* start testing */ |
| 607 | if (test->with_data) { |
| 608 | if (sccp_connection_connect(outgoing_con, &sccp_ssn_bssap, test_data1) != 0) |
| 609 | FAIL("Binding failed\n"); |
| 610 | } else { |
| 611 | ++incoming_data; |
| 612 | if (sccp_connection_connect(outgoing_con, &sccp_ssn_bssap, NULL) != 0) |
| 613 | FAIL("Binding failed\n"); |
| 614 | } |
| 615 | |
| 616 | if (test->refuse) { |
| 617 | if (outgoing_con) |
| 618 | FAIL("Outgoing connection should have been refused.\n"); |
| 619 | } else { |
| 620 | if (!incoming_con) |
| 621 | FAIL("Creating incoming didn't work.\n"); |
| 622 | |
| 623 | printf("\tWriting test data2\n"); |
| 624 | sccp_connection_write(outgoing_con, test_data2); |
Holger Hans Peter Freyther | 3b9516e | 2009-11-18 22:11:28 +0100 | [diff] [blame] | 625 | sccp_connection_send_it(outgoing_con); |
Holger Hans Peter Freyther | ac96770 | 2009-07-29 07:37:48 +0200 | [diff] [blame] | 626 | |
| 627 | /* closing connection */ |
| 628 | if (test->close_side == 0) |
| 629 | ret = sccp_connection_close(outgoing_con, 0); |
| 630 | else |
| 631 | ret = sccp_connection_close(incoming_con, 0); |
| 632 | |
| 633 | if (ret != 0) |
| 634 | FAIL("Closing the connection failed\n"); |
| 635 | } |
| 636 | |
| 637 | /* outgoing should be gone now */ |
| 638 | if (outgoing_con) |
| 639 | FAIL("Outgoing connection was not properly closed\n"); |
| 640 | |
| 641 | if (incoming_con) |
| 642 | FAIL("Incoming connection was not propery closed.\n"); |
| 643 | |
| 644 | if (test->refuse == 0) { |
| 645 | if (outgoing_data != 1 || incoming_data != 2) { |
| 646 | FAIL("Data sending failed: %d/%d %d/%d\n", |
| 647 | outgoing_data, 1, |
| 648 | incoming_data, 2); |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | if (!incoming_state || !outgoing_state) |
| 653 | FAIL("Failure with the state transition. %d %d\n", |
| 654 | outgoing_state, incoming_state); |
| 655 | } |
| 656 | |
| 657 | static void test_sccp_connection(void) |
| 658 | { |
| 659 | sccp_system_init(sccp_write_loop, NULL); |
| 660 | sccp_set_read(NULL, NULL, NULL); |
| 661 | sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_conn_accept, NULL); |
| 662 | |
| 663 | test_data1 = msgb_alloc(4, "data1"); |
| 664 | test_data1->l3h = msgb_put(test_data1, 4); |
| 665 | *((unsigned int*)test_data1->l3h) = 0x23421122; |
| 666 | |
| 667 | test_data2 = msgb_alloc(4, "data2"); |
| 668 | test_data2->l3h = msgb_put(test_data2, 4); |
| 669 | *((unsigned int*)test_data2->l3h) = 0x42232211; |
| 670 | |
| 671 | test_data3 = msgb_alloc(4, "data3"); |
| 672 | test_data3->l3h = msgb_put(test_data3, 4); |
| 673 | *((unsigned int*)test_data3->l3h) = 0x2323ff55; |
| 674 | |
| 675 | |
| 676 | for (current_test = 0; current_test < ARRAY_SIZE(connection_tests); ++current_test) { |
| 677 | printf("Testing %d refuse: %d with_data: %d\n", |
| 678 | current_test, connection_tests[current_test].refuse, |
| 679 | connection_tests[current_test].with_data); |
| 680 | do_test_sccp_connection(&connection_tests[current_test]); |
| 681 | } |
| 682 | |
| 683 | msgb_free(test_data1); |
| 684 | msgb_free(test_data2); |
| 685 | msgb_free(test_data3); |
| 686 | } |
| 687 | |
| 688 | /* invalid input */ |
| 689 | static void test_sccp_system_crash(void) |
| 690 | { |
| 691 | printf("trying to provoke a crash with invalid input\n"); |
| 692 | sccp_set_read(&sccp_ssn_bssap, sccp_read_cb, NULL); |
| 693 | sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_accept_cb, NULL); |
| 694 | |
| 695 | for (current_test = 0; current_test < ARRAY_SIZE(test_data); ++current_test) { |
| 696 | int original_length = test_data[current_test].length; |
| 697 | int length = original_length + 2; |
| 698 | int i; |
| 699 | |
| 700 | printf("Testing packet: %d\n", current_test); |
| 701 | |
| 702 | for (i = length; i >= 0; --i) { |
| 703 | unsigned int length = MIN(test_data[current_test].length, i); |
| 704 | struct msgb *msg = msgb_alloc_headroom(length + 2, 2, __func__); |
| 705 | msg->l2h = msgb_put(msg, length); |
| 706 | memcpy(msg->l2h, test_data[current_test].data, length); |
| 707 | sccp_system_incoming(msg); |
| 708 | msgb_free(msg); |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | printf("survived\n"); |
| 713 | } |
| 714 | |
| 715 | |
| 716 | int main(int argc, char **argv) |
| 717 | { |
| 718 | test_sccp_system(); |
| 719 | test_sccp_send_udt(); |
| 720 | test_sccp_udt_communication(); |
| 721 | test_sccp_connection(); |
| 722 | test_sccp_system_crash(); |
| 723 | return 0; |
| 724 | } |