| /* |
| * BSC NAT Message filtering |
| * |
| * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org> |
| * (C) 2010 by On-Waves |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| |
| #include <openbsc/debug.h> |
| #include <openbsc/gsm_data.h> |
| #include <openbsc/bsc_nat.h> |
| |
| #include <stdio.h> |
| |
| /* test messages for ipa */ |
| static u_int8_t ipa_id[] = { |
| 0x00, 0x01, 0xfe, 0x06, |
| }; |
| |
| /* SCCP messages are below */ |
| static u_int8_t gsm_reset[] = { |
| 0x00, 0x12, 0xfd, |
| 0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe, |
| 0x02, 0x42, 0xfe, 0x06, 0x00, 0x04, 0x30, 0x04, |
| 0x01, 0x20, |
| }; |
| |
| static const u_int8_t gsm_reset_ack[] = { |
| 0x00, 0x13, 0xfd, |
| 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01, |
| 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x03, |
| 0x00, 0x01, 0x31, |
| }; |
| |
| static const u_int8_t gsm_paging[] = { |
| 0x00, 0x20, 0xfd, |
| 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01, |
| 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x10, |
| 0x00, 0x0e, 0x52, 0x08, 0x08, 0x29, 0x47, 0x10, |
| 0x02, 0x01, 0x31, 0x97, 0x61, 0x1a, 0x01, 0x06, |
| }; |
| |
| /* BSC -> MSC connection open */ |
| static const u_int8_t bssmap_cr[] = { |
| 0x00, 0x2c, 0xfd, |
| 0x01, 0x01, 0x02, 0x03, 0x02, 0x02, 0x04, 0x02, |
| 0x42, 0xfe, 0x0f, 0x1f, 0x00, 0x1d, 0x57, 0x05, |
| 0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x12, 0xc3, |
| 0x50, 0x17, 0x10, 0x05, 0x24, 0x11, 0x03, 0x33, |
| 0x19, 0xa2, 0x08, 0x29, 0x47, 0x10, 0x02, 0x01, |
| 0x31, 0x97, 0x61, 0x00 |
| }; |
| |
| /* MSC -> BSC connection confirm */ |
| static const u_int8_t bssmap_cc[] = { |
| 0x00, 0x0a, 0xfd, |
| 0x02, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, |
| }; |
| |
| /* MSC -> BSC released */ |
| static const u_int8_t bssmap_released[] = { |
| 0x00, 0x0e, 0xfd, |
| 0x04, 0x00, 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x01, 0x0f, |
| 0x02, 0x23, 0x42, 0x00, |
| }; |
| |
| /* BSC -> MSC released */ |
| static const u_int8_t bssmap_release_complete[] = { |
| 0x00, 0x07, 0xfd, |
| 0x05, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03 |
| }; |
| |
| struct filter_result { |
| const u_int8_t *data; |
| const u_int16_t length; |
| const int dir; |
| const int result; |
| }; |
| |
| static const struct filter_result results[] = { |
| { |
| .data = ipa_id, |
| .length = ARRAY_SIZE(ipa_id), |
| .dir = DIR_MSC, |
| .result = 1, |
| }, |
| { |
| .data = gsm_reset, |
| .length = ARRAY_SIZE(gsm_reset), |
| .dir = DIR_MSC, |
| .result = 1, |
| }, |
| { |
| .data = gsm_reset_ack, |
| .length = ARRAY_SIZE(gsm_reset_ack), |
| .dir = DIR_BSC, |
| .result = 1, |
| }, |
| { |
| .data = gsm_paging, |
| .length = ARRAY_SIZE(gsm_paging), |
| .dir = DIR_BSC, |
| .result = 0, |
| }, |
| { |
| .data = bssmap_cr, |
| .length = ARRAY_SIZE(bssmap_cr), |
| .dir = DIR_MSC, |
| .result = 0, |
| }, |
| { |
| .data = bssmap_cc, |
| .length = ARRAY_SIZE(bssmap_cc), |
| .dir = DIR_BSC, |
| .result = 0, |
| }, |
| { |
| .data = bssmap_released, |
| .length = ARRAY_SIZE(bssmap_released), |
| .dir = DIR_MSC, |
| .result = 0, |
| }, |
| { |
| .data = bssmap_release_complete, |
| .length = ARRAY_SIZE(bssmap_release_complete), |
| .dir = DIR_BSC, |
| .result = 0, |
| }, |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| int i; |
| |
| |
| /* start testinh with proper messages */ |
| for (i = 0; i < ARRAY_SIZE(results); ++i) { |
| int result; |
| struct bsc_nat_parsed *parsed; |
| struct msgb *msg = msgb_alloc(4096, "test-message"); |
| |
| fprintf(stderr, "Going to test item: %d\n", i); |
| memcpy(msg->data, results[i].data, results[i].length); |
| msg->l2h = msgb_put(msg, results[i].length); |
| |
| parsed = bsc_nat_parse(msg); |
| if (!parsed) { |
| fprintf(stderr, "FAIL: Failed to parse the message\n"); |
| continue; |
| } |
| |
| result = bsc_nat_filter_ipa(results[i].dir, msg, parsed); |
| if (result != results[i].result) { |
| fprintf(stderr, "FAIL: Not the expected result got: %d wanted: %d\n", |
| result, results[i].result); |
| } |
| |
| msgb_free(msg); |
| } |
| |
| return 0; |
| } |