gmm: Introduce APIs & unit test to enc/dec GPRS Timer IE
enc/dec implementation and unit test are imported from osmo-sgsn.git b83aabaa95695c61a64e5e990944f8e55934a976. Change-Id: Ia3b903e8bc7890489390dcc5b2d4b60efd55dc2c
This commit is contained in:
parent
a03f36654b
commit
c6e7a3bd88
|
@ -122,6 +122,10 @@ int gprs_gmm_submit_gmmreg_attach_cnf(struct gprs_gmm_entity *gmme, bool accepte
|
|||
int gprs_gmm_submit_gmmsm_establish_cnf(struct gprs_gmm_entity *gmme, bool accepted, uint8_t cause);
|
||||
int gprs_gmm_submit_llgmm_assing_req(const struct gprs_gmm_entity *gmme);
|
||||
|
||||
/* misc.c */
|
||||
int gprs_gmm_gprs_tmr_to_secs(uint8_t gprs_tmr);
|
||||
uint8_t gprs_gmm_secs_to_gprs_tmr_floor(int secs);
|
||||
|
||||
#define LOGGMME(gmme, level, fmt, args...) \
|
||||
LOGGMM(level, "GMME(IMSI-%s:PTMSI-%08x:TLLI-%08x) " fmt, \
|
||||
gmme->imsi, \
|
||||
|
|
|
@ -20,6 +20,8 @@
|
|||
|
||||
#include <osmocom/core/logging.h>
|
||||
#include <osmocom/core/utils.h>
|
||||
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
|
||||
|
||||
#include <osmocom/gprs/gmm/gmm.h>
|
||||
#include <osmocom/gprs/gmm/gmm_ms_fsm.h>
|
||||
|
||||
|
@ -32,3 +34,48 @@ void osmo_gprs_gmm_set_log_cat(enum osmo_gprs_gmm_log_cat logc, int logc_num)
|
|||
|
||||
gprs_gmm_ms_fsm_set_log_cat(logc_num);
|
||||
}
|
||||
|
||||
|
||||
/* 3GPP TS 24.008, 10.5.7.3 GPRS Timer */
|
||||
int gprs_gmm_gprs_tmr_to_secs(uint8_t gprs_tmr)
|
||||
{
|
||||
switch (gprs_tmr & GPRS_TMR_UNIT_MASK) {
|
||||
case GPRS_TMR_2SECONDS:
|
||||
return 2 * (gprs_tmr & GPRS_TMR_FACT_MASK);
|
||||
default:
|
||||
case GPRS_TMR_MINUTE:
|
||||
return 60 * (gprs_tmr & GPRS_TMR_FACT_MASK);
|
||||
case GPRS_TMR_6MINUTE:
|
||||
return 360 * (gprs_tmr & GPRS_TMR_FACT_MASK);
|
||||
case GPRS_TMR_DEACTIVATED:
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
/* This functions returns a tmr value such that
|
||||
* - f is monotonic
|
||||
* - f(s) <= s
|
||||
* - f(s) == s if a tmr exists with s = gprs_tmr_to_secs(tmr)
|
||||
* - the best possible resolution is used
|
||||
* where
|
||||
* f(s) = gprs_tmr_to_secs(gprs_secs_to_tmr_floor(s))
|
||||
*/
|
||||
uint8_t gprs_gmm_secs_to_gprs_tmr_floor(int secs)
|
||||
{
|
||||
if (secs < 0)
|
||||
return GPRS_TMR_DEACTIVATED;
|
||||
if (secs < 2 * 32)
|
||||
return GPRS_TMR_2SECONDS | (secs / 2);
|
||||
if (secs < 60 * 2)
|
||||
/* Ensure monotonicity */
|
||||
return GPRS_TMR_2SECONDS | GPRS_TMR_FACT_MASK;
|
||||
if (secs < 60 * 32)
|
||||
return GPRS_TMR_MINUTE | (secs / 60);
|
||||
if (secs < 360 * 6)
|
||||
/* Ensure monotonicity */
|
||||
return GPRS_TMR_MINUTE | GPRS_TMR_FACT_MASK;
|
||||
if (secs < 360 * 32)
|
||||
return GPRS_TMR_6MINUTE | (secs / 360);
|
||||
|
||||
return GPRS_TMR_6MINUTE | GPRS_TMR_FACT_MASK;
|
||||
}
|
||||
|
|
|
@ -13,14 +13,30 @@ AM_LDFLAGS = \
|
|||
$(NULL)
|
||||
|
||||
check_PROGRAMS = \
|
||||
gmm_misc_test \
|
||||
gmm_prim_test \
|
||||
$(NULL)
|
||||
|
||||
EXTRA_DIST = \
|
||||
gmm_misc_test.err \
|
||||
gmm_misc_test.ok \
|
||||
gmm_prim_test.err \
|
||||
gmm_prim_test.ok \
|
||||
$(NULL)
|
||||
|
||||
# libosmo-gprs-gmm.a is used below to access non-exported private symbols used in the test:
|
||||
gmm_misc_test_SOURCES = gmm_misc_test.c
|
||||
gmm_misc_test_LDADD = \
|
||||
$(top_builddir)/src/gmm/.libs/libosmo-gprs-gmm.a \
|
||||
$(top_builddir)/src/llc/.libs/libosmo-gprs-llc.a \
|
||||
$(LIBOSMOGSM_LIBS) \
|
||||
$(LIBOSMOCORE_LIBS) \
|
||||
$(NULL)
|
||||
|
||||
gmm_misc_test_LDFLAGS = \
|
||||
-no-install \
|
||||
$(NULL)
|
||||
|
||||
# libosmo-gprs-llc.a is used below to access non-exported private symbols used in the test:
|
||||
gmm_prim_test_SOURCES = gmm_prim_test.c
|
||||
gmm_prim_test_LDADD = \
|
||||
|
|
|
@ -0,0 +1,130 @@
|
|||
/* gmm_prim tests
|
||||
*
|
||||
* (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
|
||||
* Author: Pau espin Pedrol <pespin@sysmocom.de>
|
||||
*
|
||||
* 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 Affero 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/>.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include <osmocom/core/application.h>
|
||||
#include <osmocom/core/logging.h>
|
||||
#include <osmocom/core/utils.h>
|
||||
#include <osmocom/core/fsm.h>
|
||||
#include <osmocom/core/msgb.h>
|
||||
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
|
||||
|
||||
#include <osmocom/gprs/gmm/gmm_private.h>
|
||||
|
||||
static void *tall_ctx = NULL;
|
||||
|
||||
/* Test: TS 24.008 10.5.7.3 GPRS Timer */
|
||||
static void test_gprs_timer_enc_dec(void)
|
||||
{
|
||||
int i, u, secs, tmr;
|
||||
const int upper_secs_test_limit = 12000;
|
||||
int dec_secs, last_dec_secs = -1;
|
||||
|
||||
printf("==== %s() [start] ====\n", __func__);
|
||||
|
||||
/* Check gprs_gmm_gprs_tmr_to_secs() with all 256 encoded values */
|
||||
for (u = 0; u <= GPRS_TMR_DEACTIVATED; u += 32) {
|
||||
fprintf(stderr, "Testing decoding with timer value unit %u\n",
|
||||
u / 32);
|
||||
for (i = 0; i < 32; i++) {
|
||||
switch (u) {
|
||||
case GPRS_TMR_2SECONDS:
|
||||
OSMO_ASSERT(gprs_gmm_gprs_tmr_to_secs(u + i) == 2 * i);
|
||||
break;
|
||||
|
||||
default:
|
||||
case GPRS_TMR_MINUTE:
|
||||
OSMO_ASSERT(gprs_gmm_gprs_tmr_to_secs(u + i) == 60 * i);
|
||||
break;
|
||||
|
||||
case GPRS_TMR_6MINUTE:
|
||||
OSMO_ASSERT(gprs_gmm_gprs_tmr_to_secs(u + i) == 360 * i);
|
||||
break;
|
||||
|
||||
case GPRS_TMR_DEACTIVATED:
|
||||
OSMO_ASSERT(gprs_gmm_gprs_tmr_to_secs(u + i) == -1);
|
||||
break;
|
||||
}
|
||||
|
||||
OSMO_ASSERT(gprs_gmm_gprs_tmr_to_secs(u + i) < upper_secs_test_limit);
|
||||
}
|
||||
}
|
||||
|
||||
/* Check gprs_secs_to_tmr_floor for secs that can exactly be
|
||||
* represented as GPRS timer values */
|
||||
for (i = 0; i < GPRS_TMR_DEACTIVATED; i++) {
|
||||
int j;
|
||||
secs = gprs_gmm_gprs_tmr_to_secs(i);
|
||||
tmr = gprs_gmm_secs_to_gprs_tmr_floor(secs);
|
||||
OSMO_ASSERT(secs == gprs_gmm_gprs_tmr_to_secs(tmr));
|
||||
|
||||
/* Check that the highest resolution is used */
|
||||
for (j = 0; j < tmr; j++)
|
||||
OSMO_ASSERT(secs != gprs_gmm_gprs_tmr_to_secs(j));
|
||||
}
|
||||
OSMO_ASSERT(GPRS_TMR_DEACTIVATED == gprs_gmm_secs_to_gprs_tmr_floor(-1));
|
||||
|
||||
/* Check properties of gprs_secs_to_tmr_floor */
|
||||
for (secs = 0; secs <= upper_secs_test_limit; secs++) {
|
||||
int tmr = gprs_gmm_secs_to_gprs_tmr_floor(secs);
|
||||
int delta_secs = gprs_gmm_gprs_tmr_to_secs((tmr & ~0x1f) | 1);
|
||||
dec_secs = gprs_gmm_gprs_tmr_to_secs(tmr);
|
||||
|
||||
/* Check floor */
|
||||
OSMO_ASSERT(dec_secs <= secs);
|
||||
/* Check monotonicity */
|
||||
OSMO_ASSERT(dec_secs >= last_dec_secs);
|
||||
/* Check max distance (<= resolution) */
|
||||
OSMO_ASSERT(dec_secs - last_dec_secs <= delta_secs);
|
||||
|
||||
last_dec_secs = dec_secs;
|
||||
}
|
||||
|
||||
printf("==== %s() [end] ====\n", __func__);
|
||||
}
|
||||
|
||||
static const struct log_info_cat test_log_categories[] = { };
|
||||
static const struct log_info test_log_info = {
|
||||
.cat = test_log_categories,
|
||||
.num_cat = ARRAY_SIZE(test_log_categories),
|
||||
};
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
tall_ctx = talloc_named_const(NULL, 1, __FILE__);
|
||||
|
||||
osmo_init_logging2(tall_ctx, &test_log_info);
|
||||
log_parse_category_mask(osmo_stderr_target, "DLGLOBAL,1:");
|
||||
osmo_fsm_log_addr(false);
|
||||
|
||||
log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
|
||||
log_set_print_category_hex(osmo_stderr_target, 0);
|
||||
log_set_print_category(osmo_stderr_target, 1);
|
||||
log_set_print_level(osmo_stderr_target, 1);
|
||||
log_set_use_color(osmo_stderr_target, 0);
|
||||
|
||||
test_gprs_timer_enc_dec();
|
||||
|
||||
talloc_free(tall_ctx);
|
||||
}
|
|
@ -0,0 +1,8 @@
|
|||
Testing decoding with timer value unit 0
|
||||
Testing decoding with timer value unit 1
|
||||
Testing decoding with timer value unit 2
|
||||
Testing decoding with timer value unit 3
|
||||
Testing decoding with timer value unit 4
|
||||
Testing decoding with timer value unit 5
|
||||
Testing decoding with timer value unit 6
|
||||
Testing decoding with timer value unit 7
|
|
@ -0,0 +1,2 @@
|
|||
==== test_gprs_timer_enc_dec() [start] ====
|
||||
==== test_gprs_timer_enc_dec() [end] ====
|
|
@ -1,6 +1,13 @@
|
|||
AT_INIT
|
||||
AT_BANNER([Regression tests])
|
||||
|
||||
AT_SETUP([gmm/gmm_misc])
|
||||
AT_KEYWORDS([gmm gmm_misc])
|
||||
cat $abs_srcdir/gmm/gmm_misc_test.ok > expout
|
||||
cat $abs_srcdir/gmm/gmm_misc_test.err > experr
|
||||
AT_CHECK([$abs_top_builddir/tests/gmm/gmm_misc_test], [0], [expout], [experr])
|
||||
AT_CLEANUP
|
||||
|
||||
AT_SETUP([gmm/gmm_prim])
|
||||
AT_KEYWORDS([gmm gmm_prim])
|
||||
cat $abs_srcdir/gmm/gmm_prim_test.ok > expout
|
||||
|
|
Loading…
Reference in New Issue