246 lines
6.9 KiB
C
246 lines
6.9 KiB
C
/* Test Osmocom Authentication Protocol */
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/*
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* (C) 2015 by sysmocom s.f.m.c. GmbH
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <osmocom/core/application.h>
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#include <openbsc/debug.h>
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#include <openbsc/oap.h>
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#include <openbsc/oap_messages.h>
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#include <stdio.h>
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#include <string.h>
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static void test_oap_api(void)
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{
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printf("Testing OAP API\n - Config parsing\n");
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struct oap_config _config;
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struct oap_config *config = &_config;
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struct oap_state _state;
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struct oap_state *state = &_state;
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memset(config, 0, sizeof(*config));
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memset(state, 0, sizeof(*state));
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OSMO_ASSERT(osmo_hexparse("0102030405060708090a0b0c0d0e0f10", config->secret_k, 16) == 16);
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OSMO_ASSERT(osmo_hexparse("1112131415161718191a1b1c1d1e1f20", config->secret_opc, 16) == 16);
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/* make sure filling with zeros means uninitialized */
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OSMO_ASSERT(state->state == OAP_UNINITIALIZED);
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/* invalid client_id and shared secret */
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config->client_id = 0;
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config->secret_k_present = 0;
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config->secret_opc_present = 0;
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OSMO_ASSERT( oap_init(config, state) == 0 );
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OSMO_ASSERT(state->state == OAP_DISABLED);
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/* reset state */
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memset(state, 0, sizeof(*state));
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/* only client_id is invalid */
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config->client_id = 0;
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config->secret_k_present = 1;
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config->secret_opc_present = 1;
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OSMO_ASSERT( oap_init(config, state) == 0 );
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OSMO_ASSERT(state->state == OAP_DISABLED);
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memset(state, 0, sizeof(*state));
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/* valid id, but omitted shared_secret (1/2) */
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config->client_id = 12345;
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config->secret_k_present = 0;
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config->secret_opc_present = 1;
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OSMO_ASSERT( oap_init(config, state) == 0 );
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OSMO_ASSERT(state->state == OAP_DISABLED);
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memset(state, 0, sizeof(*state));
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/* valid id, but omitted shared_secret (2/2) */
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config->client_id = 12345;
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config->secret_k_present = 1;
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config->secret_opc_present = 0;
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OSMO_ASSERT( oap_init(config, state) == 0 );
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OSMO_ASSERT(state->state == OAP_DISABLED);
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memset(state, 0, sizeof(*state));
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/* mint configuration */
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config->client_id = 12345;
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config->secret_k_present = 1;
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config->secret_opc_present = 1;
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/*config->secret_* buffers are still set from the top */
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OSMO_ASSERT( oap_init(config, state) == 0 );
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OSMO_ASSERT(state->state == OAP_INITIALIZED);
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printf(" - AUTN failures\n");
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struct osmo_oap_message oap_rx;
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struct osmo_oap_message oap_tx;
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struct msgb *msg_rx;
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struct msgb *msg_tx;
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memset(&oap_rx, 0, sizeof(oap_rx));
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/* Missing challenge data */
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oap_rx.message_type = OAP_MSGT_CHALLENGE_REQUEST;
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oap_rx.rand_present = 0;
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oap_rx.autn_present = 0;
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msg_rx = oap_encoded(&oap_rx);
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2);
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msgb_free(msg_rx);
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OSMO_ASSERT(!msg_tx);
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/* AUTN missing */
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osmo_hexparse("0102030405060708090a0b0c0d0e0f10",
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oap_rx.rand, 16);
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oap_rx.rand_present = 1;
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msg_rx = oap_encoded(&oap_rx);
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2);
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msgb_free(msg_rx);
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OSMO_ASSERT(!msg_tx);
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/* RAND missing */
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oap_rx.rand_present = 0;
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osmo_hexparse("cec4e3848a33000086781158ca40f136",
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oap_rx.autn, 16);
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oap_rx.autn_present = 1;
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msg_rx = oap_encoded(&oap_rx);
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2);
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msgb_free(msg_rx);
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OSMO_ASSERT(!msg_tx);
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/* wrong autn (by one bit) */
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osmo_hexparse("0102030405060708090a0b0c0d0e0f10",
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oap_rx.rand, 16);
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osmo_hexparse("dec4e3848a33000086781158ca40f136",
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oap_rx.autn, 16);
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oap_rx.rand_present = 1;
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oap_rx.autn_present = 1;
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msg_rx = oap_encoded(&oap_rx);
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2);
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msgb_free(msg_rx);
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OSMO_ASSERT(!msg_tx);
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/* all data correct */
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osmo_hexparse("cec4e3848a33000086781158ca40f136",
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oap_rx.autn, 16);
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msg_rx = oap_encoded(&oap_rx);
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/* but refuse to evaluate in uninitialized state */
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OSMO_ASSERT(state->state == OAP_INITIALIZED);
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state->state = OAP_UNINITIALIZED;
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -1);
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OSMO_ASSERT(!msg_tx);
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state->state = OAP_DISABLED;
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -1);
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OSMO_ASSERT(!msg_tx);
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state->state = OAP_INITIALIZED;
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/* now everything is correct */
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printf(" - AUTN success\n");
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/* a successful return value here indicates correct autn */
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == 0);
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msgb_free(msg_rx);
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/* Expect the challenge response in msg_tx */
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OSMO_ASSERT(msg_tx);
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OSMO_ASSERT(osmo_oap_decode(&oap_tx, msg_tx->data, msg_tx->len) == 0);
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OSMO_ASSERT(oap_tx.message_type == OAP_MSGT_CHALLENGE_RESULT);
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OSMO_ASSERT(strcmp("e2d05b598c61d9ba",
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osmo_hexdump_nospc(oap_tx.xres, sizeof(oap_tx.xres)))
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== 0);
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OSMO_ASSERT(state->state == OAP_SENT_CHALLENGE_RESULT);
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msgb_free(msg_tx);
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msg_tx = 0;
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struct oap_state saved_state = _state;
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printf(" - Registration failure\n");
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memset(&oap_rx, 0, sizeof(oap_rx));
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oap_rx.message_type = OAP_MSGT_REGISTER_ERROR;
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oap_rx.cause = GMM_CAUSE_PROTO_ERR_UNSPEC;
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msg_rx = oap_encoded(&oap_rx);
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/* Receive registration error for the first time. */
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OSMO_ASSERT(state->registration_failures == 0);
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == 0);
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OSMO_ASSERT(state->registration_failures == 1);
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OSMO_ASSERT(msg_tx);
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OSMO_ASSERT(osmo_oap_decode(&oap_tx, msg_tx->data, msg_tx->len) == 0);
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OSMO_ASSERT(oap_tx.message_type == OAP_MSGT_REGISTER_REQUEST);
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OSMO_ASSERT(state->state == OAP_REQUESTED_CHALLENGE);
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msgb_free(msg_tx);
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msg_tx = 0;
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/* Receive registration error for the Nth time. */
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state->registration_failures = 999;
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -11);
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OSMO_ASSERT(!msg_tx);
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OSMO_ASSERT(state->state == OAP_INITIALIZED);
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msgb_free(msg_tx);
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msg_tx = 0;
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msgb_free(msg_rx);
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printf(" - Registration success\n");
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_state = saved_state;
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memset(&oap_rx, 0, sizeof(oap_rx));
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oap_rx.message_type = OAP_MSGT_REGISTER_RESULT;
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msg_rx = oap_encoded(&oap_rx);
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OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == 0);
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OSMO_ASSERT(!msg_tx);
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OSMO_ASSERT(state->state == OAP_REGISTERED);
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msgb_free(msg_rx);
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}
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static struct log_info_cat gprs_categories[] = {
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[DGPRS] = {
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.name = "DGPRS",
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.description = "GPRS Packet Service",
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.enabled = 1, .loglevel = LOGL_DEBUG,
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},
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};
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static struct log_info info = {
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.cat = gprs_categories,
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.num_cat = ARRAY_SIZE(gprs_categories),
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};
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int main(int argc, char **argv)
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{
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msgb_talloc_ctx_init(NULL, 0);
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osmo_init_logging(&info);
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test_oap_api();
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printf("Done\n");
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return 0;
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}
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