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/* some humble start of unit testing */
/* (C) 2015 by Harald Welte <laforge@gnumonks.org>
* 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 "test_common.h"
#include <osmocom/ranap/iu_helpers.h>
#include <osmocom/ranap/ranap_common.h>
#include "asn1helpers.h"
#include <assert.h>
#define ASSERT(x) assert(x)
#include <osmocom/core/utils.h>
#include <osmocom/gsm/gsm48.h>
#include <osmocom/ranap/RANAP_LAI.h>
int asn1_xer_print = 0;
void *talloc_asn1_ctx;
/* use odd number of digits */
const uint8_t imsi_encoded[] = { 0x10, 0x32, 0x54, 0x76, 0xF8 };
const char imsi_decoded[] = "012345678";
void test_iu_helpers(void)
{
char outstr[32];
uint8_t outbuf[16];
int rc;
printf("Testing Iu helper functions\n");
printf("pre-encoded: %s\n", osmo_hexdump_nospc(imsi_encoded,
sizeof(imsi_encoded)));
rc = ranap_bcd_decode(outstr, sizeof(outstr), imsi_encoded,
sizeof(imsi_encoded));
ASSERT(rc >= 0);
printf("decoded: %s\n", outstr);
ASSERT(!strcmp(outstr, imsi_decoded));
rc = ranap_imsi_encode(outbuf, sizeof(outbuf), imsi_decoded);
ASSERT(rc >= 0);
printf("re-encoded: %s\n", osmo_hexdump_nospc(outbuf, rc));
ASSERT(!memcmp(outbuf, imsi_encoded, sizeof(imsi_encoded)));
}
const uint32_t val1 = 0xdeadbeef;
const OCTET_STRING_t text1 = {
.buf = (uint8_t *) "0123456789012345",
.size = 16,
};
const OCTET_STRING_t text2 = {
.buf = (uint8_t *) "01234567890123456789012345678901234567890",
.size = 40,
};
void test_asn1_helpers(void)
{
int rc;
void *buffer;
BIT_STRING_t enc;
uint32_t res, tmpval;
char text[32];
printf("Testing asn.1 helper functions\n");
printf("Encoding 0x%x to asn.1 bitstring\n", val1);
asn1_u32_to_bitstring(&enc, &tmpval, val1);
ASSERT(enc.size == sizeof(uint32_t));
ASSERT(enc.bits_unused == 0);
rc = aper_encode_to_new_buffer(&asn_DEF_BIT_STRING, 0, &enc, (void **) &buffer);
printf("Encoded: %s\n", osmo_hexdump_nospc(buffer, rc));
res = asn1bitstr_to_u32(&enc);
printf("Decoding back to uint32_t: 0x%x\n", res);
ASSERT(res == val1);
printf("Encoding 0x%x to 24-bit asn.1 bitstring\n", val1);
asn1_u24_to_bitstring(&enc, &tmpval, val1);
ASSERT(enc.size == 24/8);
ASSERT(enc.bits_unused == 0);
talloc_free(buffer);
rc = aper_encode_to_new_buffer(&asn_DEF_BIT_STRING, 0, &enc, (void **) &buffer);
printf("Encoded: %s\n", osmo_hexdump_nospc(buffer, rc));
rc = asn1_strncpy(text, &text1, sizeof(text));
printf("Decoding string from asn.1: %s\n", text);
ASSERT(rc == 16);
ASSERT(!strcmp(text, (char *)text1.buf));
rc = asn1_strncpy(text, &text2, sizeof(text));
printf("Decoding large string from asn1: %s\n", text);
ASSERT(rc == 31);
talloc_free(buffer);
}
void test_ranap_common(void)
{
uint8_t plmnid_buf[] = { 0x21, 0xf3, 0x54 };
uint8_t lac_buf[] = { 0xab, 0xcd };
struct gprs_ra_id ra_id = {0};
int rc;
RANAP_LAI_t lai = {
.pLMNidentity = {
.buf = plmnid_buf,
.size = 3
},
.lAC = {
.buf = lac_buf,
.size = 2
}
};
printf("Testing ranap common functions\n");
printf("PLMN-Id [ %s]", osmo_hexdump(lai.pLMNidentity.buf,
lai.pLMNidentity.size));
printf(", LAC [ %s]\n", osmo_hexdump(lai.lAC.buf,
lai.lAC.size));
rc = ranap_parse_lai(&ra_id, &lai);
printf(" rc == %d\n", rc);
OSMO_ASSERT(rc == 0);
printf(" mcc == %d mnc == %d\n", ra_id.mcc, ra_id.mnc);
OSMO_ASSERT(ra_id.mcc == 123);
OSMO_ASSERT(ra_id.mnc == 45);
printf(" lac == 0x%x\n", ra_id.lac);
OSMO_ASSERT(ra_id.lac == 0xabcd);
/* three digit MNC */
uint8_t plmnid_buf_mnc3[] = { 0x21, 0x43, 0x65 };
lai.pLMNidentity.buf = plmnid_buf_mnc3;
printf("PLMN-Id [ %s]", osmo_hexdump(lai.pLMNidentity.buf,
lai.pLMNidentity.size));
printf(", LAC [ %s]\n", osmo_hexdump(lai.lAC.buf,
lai.lAC.size));
rc = ranap_parse_lai(&ra_id, &lai);
printf(" rc == %d\n", rc);
OSMO_ASSERT(rc == 0);
printf(" mcc == %d mnc == %d\n", ra_id.mcc, ra_id.mnc);
OSMO_ASSERT(ra_id.mcc == 123);
OSMO_ASSERT(ra_id.mnc == 456);
printf(" lac == 0x%x\n", ra_id.lac);
OSMO_ASSERT(ra_id.lac == 0xabcd);
/* wrong PLMN-Id size */
lai.pLMNidentity.size = 2;
printf("PLMN-Id [ %s]", osmo_hexdump(lai.pLMNidentity.buf,
lai.pLMNidentity.size));
printf(", LAC [ %s]\n", osmo_hexdump(lai.lAC.buf,
lai.lAC.size));
rc = ranap_parse_lai(&ra_id, &lai);
printf(" rc == %d\n", rc);
OSMO_ASSERT(rc == -1);
/* wrong LAC size */
lai.pLMNidentity.size = 3;
lai.lAC.size = 1;
printf("PLMN-Id [ %s]", osmo_hexdump(lai.pLMNidentity.buf,
lai.pLMNidentity.size));
printf(", LAC [ %s]\n", osmo_hexdump(lai.lAC.buf,
lai.lAC.size));
rc = ranap_parse_lai(&ra_id, &lai);
printf(" rc == %d\n", rc);
OSMO_ASSERT(rc == -1);
}
int main(int argc, char **argv)
{
test_common_init();
test_iu_helpers();
test_asn1_helpers();
test_ranap_common();
test_common_cleanup();
return 0;
}
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