aboutsummaryrefslogtreecommitdiffstats
path: root/tests/app_info/AppInfoTest.cpp
blob: cd4454d1dc682bed1f8687d55283af01f12eab62 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
/* Copyright (C) 2019 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#include <cstdlib>
#include <cstring>
#include <assert.h>
#include "gprs_rlcmac.h"
#include "bts.h"

extern "C" {
#include <osmocom/vty/telnet_interface.h>
#include <osmocom/vty/logging.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/application.h>
}

using namespace std;
gprs_rlcmac_dl_tbf *tbf1, *tbf2;
GprsMs *ms1, *ms2;
struct msgb *sched_app_info(struct gprs_rlcmac_tbf *tbf);

/* globals used by the code */
void *tall_pcu_ctx;
int16_t spoof_mnc = 0, spoof_mcc = 0;
bool spoof_mnc_3_digits = false;

void test_enc_zero_len() {
	struct gsm_pcu_if_app_info_req req = {0, 0, {0}};

	fprintf(stderr, "--- %s ---\n",  __func__);
	assert(gprs_rlcmac_app_info_msg(&req) == NULL);
	fprintf(stderr, "\n");
}

void test_enc(const struct gsm_pcu_if_app_info_req *req)
{
	const char *exp = "03 fc 03 fc 00 00 00 00 00 00 00 00 00 00 00 00 "; /* shifted by two bits to the right */
	struct msgb *msg;
	char *msg_dump;

	fprintf(stderr, "--- %s ---\n",  __func__);
	msg = gprs_rlcmac_app_info_msg(req);
	msg_dump = msgb_hexdump_c(tall_pcu_ctx, msg);

	fprintf(stderr, "exp: %s\n", exp);
	fprintf(stderr, "msg: %s\n", msg_dump);
	assert(strcmp(msg_dump, exp) == 0);

	msgb_free(msg);
	talloc_free(msg_dump);
	fprintf(stderr, "\n");
}

void test_pcu_rx_no_subscr_with_active_tbf()
{
	struct gsm_pcu_if pcu_prim = {PCU_IF_MSG_APP_INFO_REQ, };

	fprintf(stderr, "--- %s ---\n",  __func__);
	pcu_rx(PCU_IF_MSG_APP_INFO_REQ, &pcu_prim);
	fprintf(stderr, "\n");
}

void prepare_bts_with_two_dl_tbf_subscr()
{
	BTS *bts = BTS::main_bts();
	struct gprs_rlcmac_bts *bts_data;
	struct gprs_rlcmac_trx *trx;

	fprintf(stderr, "--- %s ---\n",  __func__);

	bts_data = bts->bts_data();
	bts_data->alloc_algorithm = alloc_algorithm_b;

	trx = bts_data->trx;
	trx->pdch[4].enable();
	trx->pdch[5].enable();
	trx->pdch[6].enable();
	trx->pdch[7].enable();

	ms1 = bts->ms_alloc(10, 11);
	tbf1 = tbf_alloc_dl_tbf(bts_data, ms1, 0, false);
	ms2 = bts->ms_alloc(12, 13);
	tbf2 = tbf_alloc_dl_tbf(bts_data, ms2, 0, false);

	fprintf(stderr, "\n");
}

void test_sched_app_info_ok(const struct gsm_pcu_if_app_info_req *req)
{
	struct gsm_pcu_if pcu_prim = {PCU_IF_MSG_APP_INFO_REQ, };
	struct msgb *msg;

	fprintf(stderr, "--- %s ---\n",  __func__);
	pcu_prim.u.app_info_req = *req;
	pcu_rx(PCU_IF_MSG_APP_INFO_REQ, &pcu_prim);

	msg = sched_app_info(tbf1);
	assert(msg);
	msgb_free(msg);

	msg = sched_app_info(tbf2);
	assert(msg);
	msgb_free(msg);

	fprintf(stderr, "\n");
}

void test_sched_app_info_missing_app_info_in_bts(const struct gsm_pcu_if_app_info_req *req)
{
	struct gprs_rlcmac_bts *bts_data = BTS::main_bts()->bts_data();
	struct gsm_pcu_if pcu_prim = {PCU_IF_MSG_APP_INFO_REQ, };

	fprintf(stderr, "--- %s ---\n",  __func__);
	pcu_prim.u.app_info_req = *req;
	pcu_rx(PCU_IF_MSG_APP_INFO_REQ, &pcu_prim);

	msgb_free(bts_data->app_info);
	bts_data->app_info = NULL;

	assert(sched_app_info(tbf1) == NULL);

	fprintf(stderr, "\n");
}

void test_pcu_rx_overwrite_app_info(const struct gsm_pcu_if_app_info_req *req)
{
	struct gsm_pcu_if pcu_prim = {PCU_IF_MSG_APP_INFO_REQ, };

	fprintf(stderr, "--- %s ---\n",  __func__);
	pcu_prim.u.app_info_req = *req;
	pcu_rx(PCU_IF_MSG_APP_INFO_REQ, &pcu_prim);
	pcu_rx(PCU_IF_MSG_APP_INFO_REQ, &pcu_prim);
	fprintf(stderr, "\n");
}

void cleanup()
{
	fprintf(stderr, "--- %s ---\n",  __func__);

	BTS::main_bts()->cleanup();
	talloc_free(tbf1);
	talloc_free(tbf2);
	/* FIXME: talloc report disabled, because bts->ms_alloc() in prepare_bts_with_two_dl_tbf_subscr() causes leak */
	/* talloc_report_full(tall_pcu_ctx, stderr); */
	talloc_free(tall_pcu_ctx);
}

int main(int argc, char *argv[])
{
	struct gsm_pcu_if_app_info_req req = {0, 15, {0}};
	const uint8_t req_data[] = {0xff, 0x00, 0xff};
	memcpy(req.data, req_data, 3);

	tall_pcu_ctx = talloc_named_const(NULL, 1, "AppInfoTest");
	osmo_init_logging2(tall_pcu_ctx, &gprs_log_info);
	log_set_use_color(osmo_stderr_target, 0);
	log_set_print_filename(osmo_stderr_target, 0);
	log_parse_category_mask(osmo_stderr_target, "DL1IF,1:DRLCMAC,3:DRLCMACSCHED,1");

	test_enc_zero_len();
	test_enc(&req);
	test_pcu_rx_no_subscr_with_active_tbf();

	prepare_bts_with_two_dl_tbf_subscr();
	test_sched_app_info_ok(&req);
	test_sched_app_info_missing_app_info_in_bts(&req);
	test_pcu_rx_overwrite_app_info(&req);

	cleanup();
}

/*
 * 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(); }
}