| /* Code for a software PCU to test a SGSN.. */ |
| |
| /* (C) 2013 by Holger Hans Peter Freyther |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| extern "C" { |
| #include <osmocom/core/talloc.h> |
| #include <pcu_vty.h> |
| #include <alloc_algo.h> |
| } |
| |
| #include "gprs_tests.h" |
| |
| |
| #include <gprs_bssgp_pcu.h> |
| #include <gprs_rlcmac.h> |
| #include <bts.h> |
| |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| |
| static size_t current_test; |
| |
| /* Extern data to please the underlying code */ |
| void *tall_pcu_ctx; |
| int16_t spoof_mnc = 0, spoof_mcc = 0; |
| bool spoof_mnc_3_digits = false; |
| |
| extern void test_replay_gprs_attach(struct gprs_bssgp_pcu *pcu); |
| extern void test_replay_gprs_data(struct gprs_bssgp_pcu *, struct msgb *, struct tlv_parsed *); |
| |
| extern void test_pdp_activation_start(struct gprs_bssgp_pcu *pcu); |
| extern void test_pdp_activation_data(struct gprs_bssgp_pcu *, struct msgb *, struct tlv_parsed*); |
| |
| struct gprs_test all_tests[] = { |
| gprs_test("gprs_attach_with_tmsi", |
| "A simple test that verifies that N(U) is " |
| "increasing across various messages. This makes " |
| "sure that no new LLE/LLME is created on the fly.", |
| test_replay_gprs_attach, |
| test_replay_gprs_data), |
| gprs_test("gprs_full_attach_pdp_activation", |
| "A simple test to do a GPRS attach and open a PDP " |
| "context. Then goes to sleep and waits for you to ping " |
| "the connection and hopefully re-produce a crash.", |
| test_pdp_activation_start, |
| test_pdp_activation_data), |
| }; |
| |
| static void init_main_bts(struct gprs_rlcmac_bts *bts) |
| { |
| bts->initial_cs_dl = bts->initial_cs_ul = 1; |
| bts->cs_mask = 1 << 0; /* CS-1 always enabled by default */ |
| bts->n3101 = 10; |
| bts->n3103 = 4; |
| bts->n3105 = 8; |
| } |
| |
| static void init_pcu(struct gprs_pcu *pcu) |
| { |
| if (!pcu->alloc_algorithm) |
| pcu->alloc_algorithm = alloc_algorithm_b; |
| pcu->vty.fc_interval = 100; |
| } |
| |
| static void bvci_unblocked(struct gprs_bssgp_pcu *pcu) |
| { |
| printf("BVCI unblocked. We can begin with test cases.\n"); |
| all_tests[current_test].start(pcu); |
| } |
| |
| static void bssgp_data(struct gprs_bssgp_pcu *pcu, struct msgb *msg, struct tlv_parsed *tp) |
| { |
| all_tests[current_test].data(pcu, msg, tp); |
| } |
| |
| void create_and_connect_bssgp(struct gprs_rlcmac_bts *bts, |
| uint32_t sgsn_ip, uint16_t sgsn_port) |
| { |
| struct gprs_bssgp_pcu *pcu; |
| struct osmo_sockaddr local, remote; |
| uint16_t nsvci = 20; |
| uint16_t nsei = 20; |
| |
| local.u.sin.sin_family = AF_INET; |
| local.u.sin.sin_addr.s_addr = 0; |
| local.u.sin.sin_port = 0; |
| |
| remote.u.sin.sin_family = AF_INET; |
| remote.u.sin.sin_addr.s_addr = htonl(sgsn_ip); |
| remote.u.sin.sin_port = htons(sgsn_port); |
| |
| pcu = gprs_bssgp_init(bts, 20, 20, 901, 99, false, 1, 0, 0); |
| gprs_ns_update_config(bts, nsei, &local, &remote, &nsvci, 1); |
| |
| pcu->on_unblock_ack = bvci_unblocked; |
| pcu->on_dl_unit_data = bssgp_data; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| struct gprs_pcu *pcu = gprs_pcu_alloc(tall_pcu_ctx); |
| the_pcu = pcu; /* globally avaialable object */ |
| struct gprs_rlcmac_bts *bts = bts_alloc(pcu, 0); |
| |
| tall_pcu_ctx = talloc_named_const(NULL, 1, "moiji-mobile Emu-PCU context"); |
| if (!tall_pcu_ctx) |
| abort(); |
| |
| msgb_talloc_ctx_init(tall_pcu_ctx, 0); |
| osmo_init_logging2(tall_pcu_ctx, &gprs_log_info); |
| |
| pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, &gprs_ns_prim_cb, NULL); |
| if (!pcu->nsi) { |
| LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n"); |
| abort(); |
| } |
| |
| vty_init(&pcu_vty_info); |
| pcu_vty_init(); |
| |
| current_test = 0; |
| |
| init_pcu(pcu); |
| init_main_bts(bts); |
| bssgp_set_bssgp_callback(gprs_gp_send_cb, pcu->nsi); |
| create_and_connect_bssgp(bts, INADDR_LOOPBACK, 23000); |
| |
| for (;;) |
| osmo_select_main(0); |
| |
| return EXIT_SUCCESS; |
| } |
| |
| |
| /* |
| * Test handling.. |
| */ |
| void gprs_test_success(struct gprs_bssgp_pcu *pcu) |
| { |
| current_test += 1; |
| if (current_test >= ARRAY_SIZE(all_tests)) { |
| printf("All tests executed.\n"); |
| exit(EXIT_SUCCESS); |
| } |
| |
| all_tests[current_test].start(pcu); |
| } |
| |
| /* |
| * stubs that should not be reached |
| */ |
| extern "C" { |
| void l1if_pdch_req() { abort(); } |
| void l1if_connect_pdch() { abort(); } |
| void l1if_close_pdch() { abort(); } |
| void l1if_open_pdch() { abort(); } |
| } |