104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/* LLC PDU codec tests
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*
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* (C) 2022 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Vadim Yanitskiy <vyanitskiy@sysmocom.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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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#include <stdint.h>
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#include <stdio.h>
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#include <osmocom/core/application.h>
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#include <osmocom/core/logging.h>
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#include <osmocom/core/utils.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/gprs/llc/llc.h>
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#include <osmocom/gprs/llc/llc_private.h>
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static void *tall_ctx = NULL;
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static void test_pdu_dec_enc(void)
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{
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static const char * const testData[] = {
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/* SAPI=1 (GMM), UI func=UI C/R=0 PM=0 N(U)=4 */
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"01c010080509afe633",
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/* SAPI=1 (GMM), UI func=UI C/R=1 PM=1 N(U)=0 */
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"41c001081502de8e9a",
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/* SAPI=1 (GMM), U func=NULL C/R=0 P/F=0 */
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"01e01ca2b3",
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/* SAPI=3 (SNDCP3), U func=XID C/R=1 P/F=1 */
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"43fb01001601f41a05df8c7c4e",
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/* SAPI=3 (SNDCP3), U func=XID C/R=1 P/F=1 */
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"03fb1604d216f984",
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};
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struct msgb *msg = msgb_alloc(1024, "LLC-PDU");
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OSMO_ASSERT(msg != NULL);
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for (unsigned int i = 0; i < ARRAY_SIZE(testData); i++) {
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struct gprs_llc_pdu_decoded hdr = { 0 };
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uint8_t pdu[256];
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size_t pdu_len;
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int rc;
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printf("%s(): decoding testData[%u] = %s\n", __func__, i, testData[i]);
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rc = osmo_hexparse(testData[i], &pdu[0], sizeof(pdu));
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pdu_len = strlen(testData[i]) / 2;
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OSMO_ASSERT(rc == pdu_len);
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rc = gprs_llc_pdu_decode(&hdr, &pdu[0], pdu_len);
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printf(" gprs_llc_pdu_decode() returns %d\n", rc);
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printf(" gprs_llc_pdu_hdr_dump(): %s\n", gprs_llc_pdu_hdr_dump(&hdr));
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if (hdr.data_len > 0) {
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printf(" hdr.data[] (len=%zu): %s\n", hdr.data_len,
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osmo_hexdump_nospc(hdr.data, hdr.data_len));
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}
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printf("%s(): encoding decoded testData[%u]\n", __func__, i);
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msgb_reset(msg);
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rc = gprs_llc_pdu_encode(msg, &hdr);
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printf(" gprs_llc_pdu_encode() returns %d\n", rc);
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printf(" gprs_llc_pdu_encode(): %s\n", osmo_hexdump_nospc(msg->data, msg->len));
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printf(" memcmp() returns %d\n", memcmp(&pdu, msg->data, pdu_len));
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}
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msgb_free(msg);
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printf("\n");
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}
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static const struct log_info_cat test_log_categories[] = { };
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static const struct log_info test_log_info = {
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.cat = test_log_categories,
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.num_cat = ARRAY_SIZE(test_log_categories),
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};
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int main(int argc, char *argv[])
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{
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tall_ctx = talloc_named_const(NULL, 1, __FILE__);
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osmo_init_logging2(tall_ctx, &test_log_info);
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log_parse_category_mask(osmo_stderr_target, "DLGLOBAL,1:");
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log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
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log_set_print_category_hex(osmo_stderr_target, 0);
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log_set_print_category(osmo_stderr_target, 1);
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log_set_print_level(osmo_stderr_target, 1);
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log_set_use_color(osmo_stderr_target, 0);
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test_pdu_dec_enc();
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talloc_free(tall_ctx);
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}
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