177 lines
4.6 KiB
C++
177 lines
4.6 KiB
C++
/* Code for a software PCU to test a SGSN.. */
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/* (C) 2013 by Holger Hans Peter Freyther
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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extern "C" {
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#include <osmocom/core/talloc.h>
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#include <pcu_vty.h>
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}
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#include "gprs_tests.h"
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#include <gprs_bssgp_pcu.h>
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#include <gprs_rlcmac.h>
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#include <bts.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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static size_t current_test;
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/* Extern data to please the underlying code */
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void *tall_pcu_ctx;
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int16_t spoof_mnc = 0, spoof_mcc = 0;
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bool spoof_mnc_3_digits = false;
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extern void test_replay_gprs_attach(struct gprs_bssgp_pcu *pcu);
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extern void test_replay_gprs_data(struct gprs_bssgp_pcu *, struct msgb *, struct tlv_parsed *);
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extern void test_pdp_activation_start(struct gprs_bssgp_pcu *pcu);
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extern void test_pdp_activation_data(struct gprs_bssgp_pcu *, struct msgb *, struct tlv_parsed*);
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struct gprs_test all_tests[] = {
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gprs_test("gprs_attach_with_tmsi",
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"A simple test that verifies that N(U) is "
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"increasing across various messages. This makes "
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"sure that no new LLE/LLME is created on the fly.",
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test_replay_gprs_attach,
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test_replay_gprs_data),
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gprs_test("gprs_full_attach_pdp_activation",
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"A simple test to do a GPRS attach and open a PDP "
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"context. Then goes to sleep and waits for you to ping "
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"the connection and hopefully re-produce a crash.",
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test_pdp_activation_start,
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test_pdp_activation_data),
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};
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static void init_main_bts()
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{
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struct gprs_rlcmac_bts *bts = bts_main_data();
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bts->initial_cs_dl = bts->initial_cs_ul = 1;
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bts->cs_mask = 1 << 0; /* CS-1 always enabled by default */
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bts->n3101 = 10;
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bts->n3103 = 4;
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bts->n3105 = 8;
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}
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static void init_pcu(struct gprs_pcu *pcu)
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{
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if (!pcu->alloc_algorithm)
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pcu->alloc_algorithm = alloc_algorithm_b;
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pcu->vty.fc_interval = 100;
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pcu->vty.alpha = 0; /* a = 0.0 */
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}
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static void bvci_unblocked(struct gprs_bssgp_pcu *pcu)
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{
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printf("BVCI unblocked. We can begin with test cases.\n");
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all_tests[current_test].start(pcu);
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}
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static void bssgp_data(struct gprs_bssgp_pcu *pcu, struct msgb *msg, struct tlv_parsed *tp)
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{
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all_tests[current_test].data(pcu, msg, tp);
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}
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void create_and_connect_bssgp(struct gprs_rlcmac_bts *bts,
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uint32_t sgsn_ip, uint16_t sgsn_port)
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{
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struct gprs_bssgp_pcu *pcu;
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struct osmo_sockaddr local, remote;
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uint16_t nsvci = 20;
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uint16_t nsei = 20;
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local.u.sin.sin_family = AF_INET;
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local.u.sin.sin_addr.s_addr = 0;
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local.u.sin.sin_port = 0;
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remote.u.sin.sin_family = AF_INET;
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remote.u.sin.sin_addr.s_addr = htonl(sgsn_ip);
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remote.u.sin.sin_port = htons(sgsn_port);
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pcu = gprs_bssgp_init(bts, 20, 20, 901, 99, false, 1, 0, 0);
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gprs_ns_config(bts, nsei, &local, &remote, &nsvci, 1);
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pcu->on_unblock_ack = bvci_unblocked;
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pcu->on_dl_unit_data = bssgp_data;
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}
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int main(int argc, char **argv)
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{
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struct gprs_pcu *pcu = gprs_pcu_alloc(tall_pcu_ctx);
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the_pcu = pcu; /* globally avaialable object */
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pcu->bts = bts_alloc(pcu);
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tall_pcu_ctx = talloc_named_const(NULL, 1, "moiji-mobile Emu-PCU context");
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if (!tall_pcu_ctx)
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abort();
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msgb_talloc_ctx_init(tall_pcu_ctx, 0);
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osmo_init_logging2(tall_pcu_ctx, &gprs_log_info);
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pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, &gprs_ns_prim_cb, NULL);
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if (!pcu->nsi) {
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LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
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abort();
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}
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vty_init(&pcu_vty_info);
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pcu_vty_init();
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current_test = 0;
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init_pcu(pcu);
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init_main_bts();
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bssgp_set_bssgp_callback(gprs_gp_send_cb, pcu->nsi);
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create_and_connect_bssgp(bts_data(pcu->bts), INADDR_LOOPBACK, 23000);
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for (;;)
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osmo_select_main(0);
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return EXIT_SUCCESS;
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}
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/*
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* Test handling..
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*/
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void gprs_test_success(struct gprs_bssgp_pcu *pcu)
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{
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current_test += 1;
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if (current_test >= ARRAY_SIZE(all_tests)) {
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printf("All tests executed.\n");
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exit(EXIT_SUCCESS);
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}
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all_tests[current_test].start(pcu);
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}
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/*
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* stubs that should not be reached
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*/
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extern "C" {
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void l1if_pdch_req() { abort(); }
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void l1if_connect_pdch() { abort(); }
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void l1if_close_pdch() { abort(); }
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void l1if_open_pdch() { abort(); }
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}
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