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/* (C) 2013 by Andreas Eversberg <jolly@eversberg.eu>
* 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/>.
*
*/
#include <osmocom/abis/trau_frame.h>
#include <openbsc/trau_mux.h>
#include <osmocom/core/msgb.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
void test_trau_fr_efr(unsigned char *data)
{
struct decoded_trau_frame tf;
struct msgb *msg;
struct gsm_data_frame *frame;
printf("Testing TRAU FR transcoding.\n");
data[0] = 0xd0;
trau_encode_fr(&tf, data);
tf.c_bits[11] = 0; /* clear BFI */
msg = trau_decode_fr(1, &tf);
OSMO_ASSERT(msg != NULL);
frame = (struct gsm_data_frame *)msg->data;
OSMO_ASSERT(frame->msg_type == GSM_TCHF_FRAME);
OSMO_ASSERT(!memcmp(frame->data, data, 33));
msgb_free(msg);
printf("Testing TRAU EFR transcoding.\n");
data[0] = 0xc0;
trau_encode_efr(&tf, data);
OSMO_ASSERT(tf.d_bits[0] == 1); /* spare bit must be 1 */
tf.c_bits[11] = 0; /* clear BFI */
msg = trau_decode_efr(1, &tf);
OSMO_ASSERT(msg != NULL);
frame = (struct gsm_data_frame *)msg->data;
OSMO_ASSERT(frame->msg_type == GSM_TCHF_FRAME_EFR);
OSMO_ASSERT(!memcmp(frame->data, data, 31));
printf("Testing TRAU EFR decoding with CRC error.\n");
tf.d_bits[0] = 0; /* spare bit must be included */
msg = trau_decode_efr(1, &tf);
OSMO_ASSERT(msg != NULL);
frame = (struct gsm_data_frame *)msg->data;
OSMO_ASSERT(frame->msg_type == GSM_BAD_FRAME);
msgb_free(msg);
}
int main()
{
unsigned char data[33];
int i;
msgb_talloc_ctx_init(NULL, 0);
memset(data, 0x00, sizeof(data));
test_trau_fr_efr(data);
memset(data, 0xff, sizeof(data));
test_trau_fr_efr(data);
srandom(42);
for (i = 0; i < sizeof(data); i++)
data[i] = random();
test_trau_fr_efr(data);
printf("Done\n");
return 0;
}
/* stubs */
void vty_out() {}
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