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/* Test Osmocom Authentication Protocol */
/*
* (C) 2015 by sysmocom s.f.m.c. GmbH
* 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 <osmocom/core/application.h>
#include <osmocom/core/logging.h>
#include <osmocom/gsm/oap.h>
#include <osmocom/gsm/oap_client.h>
#include <stdio.h>
#include <string.h>
static void test_oap_api(void)
{
printf("Testing OAP API\n");
struct osmo_oap_client_config _config;
struct osmo_oap_client_config *config = &_config;
struct osmo_oap_client_state _state;
struct osmo_oap_client_state *state = &_state;
struct osmo_oap_message oap_rx;
struct msgb *msg_rx;
struct osmo_oap_message oap_tx;
struct msgb *msg_tx;
memset(config, 0, sizeof(*config));
memset(state, 0, sizeof(*state));
OSMO_ASSERT(osmo_hexparse("0102030405060708090a0b0c0d0e0f10", config->secret_k, 16) == 16);
OSMO_ASSERT(osmo_hexparse("1112131415161718191a1b1c1d1e1f20", config->secret_opc, 16) == 16);
fprintf(stderr, "- make sure filling with zeros means uninitialized\n");
OSMO_ASSERT(state->state == OSMO_OAP_UNINITIALIZED);
fprintf(stderr, "- reject messages in uninitialized state\n");
memset(&oap_rx, 0, sizeof(oap_rx));
state->client_id = 1;
oap_rx.message_type = OAP_MSGT_REGISTER_ERROR;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) < 0);
OSMO_ASSERT(state->state == OSMO_OAP_UNINITIALIZED);
msgb_free(msg_rx);
OSMO_ASSERT(!msg_tx);
fprintf(stderr, "- NULL config should disable\n");
OSMO_ASSERT( osmo_oap_client_init(NULL, state) == 0 );
OSMO_ASSERT(state->state == OSMO_OAP_DISABLED);
fprintf(stderr, "- reject messages in disabled state\n");
memset(state, 0, sizeof(*state));
memset(&oap_rx, 0, sizeof(oap_rx));
state->state = OSMO_OAP_DISABLED;
state->client_id = 1;
oap_rx.message_type = OAP_MSGT_REGISTER_ERROR;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) < 0);
OSMO_ASSERT(state->state == OSMO_OAP_DISABLED);
msgb_free(msg_rx);
OSMO_ASSERT(!msg_tx);
fprintf(stderr, "- invalid client_id and shared secret\n");
memset(state, 0, sizeof(*state));
config->client_id = 0;
config->secret_k_present = 0;
config->secret_opc_present = 0;
OSMO_ASSERT( osmo_oap_client_init(config, state) == 0 );
OSMO_ASSERT(state->state == OSMO_OAP_DISABLED);
fprintf(stderr, "- reset state\n");
memset(state, 0, sizeof(*state));
fprintf(stderr, "- only client_id is invalid\n");
config->client_id = 0;
config->secret_k_present = 1;
config->secret_opc_present = 1;
OSMO_ASSERT( osmo_oap_client_init(config, state) == 0 );
OSMO_ASSERT(state->state == OSMO_OAP_DISABLED);
memset(state, 0, sizeof(*state));
fprintf(stderr, "- valid id, but omitted shared_secret (1/2)\n");
config->client_id = 12345;
config->secret_k_present = 0;
config->secret_opc_present = 1;
OSMO_ASSERT( osmo_oap_client_init(config, state) == 0 );
OSMO_ASSERT(state->state == OSMO_OAP_DISABLED);
memset(state, 0, sizeof(*state));
fprintf(stderr, "- valid id, but omitted shared_secret (2/2)\n");
config->client_id = 12345;
config->secret_k_present = 1;
config->secret_opc_present = 0;
OSMO_ASSERT( osmo_oap_client_init(config, state) == 0 );
OSMO_ASSERT(state->state == OSMO_OAP_DISABLED);
memset(state, 0, sizeof(*state));
fprintf(stderr, "- mint configuration\n");
config->client_id = 12345;
config->secret_k_present = 1;
config->secret_opc_present = 1;
/*config->secret_* buffers are still set from the top */
OSMO_ASSERT( osmo_oap_client_init(config, state) == 0 );
OSMO_ASSERT(state->state == OSMO_OAP_INITIALIZED);
fprintf(stderr, "- Missing challenge data\n");
memset(&oap_rx, 0, sizeof(oap_rx));
oap_rx.message_type = OAP_MSGT_CHALLENGE_REQUEST;
oap_rx.rand_present = 0;
oap_rx.autn_present = 0;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == -2);
msgb_free(msg_rx);
OSMO_ASSERT(!msg_tx);
fprintf(stderr, "- AUTN missing\n");
osmo_hexparse("0102030405060708090a0b0c0d0e0f10",
oap_rx.rand, 16);
oap_rx.rand_present = 1;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == -2);
msgb_free(msg_rx);
OSMO_ASSERT(!msg_tx);
fprintf(stderr, "- RAND missing\n");
oap_rx.rand_present = 0;
osmo_hexparse("cec4e3848a33000086781158ca40f136",
oap_rx.autn, 16);
oap_rx.autn_present = 1;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == -2);
msgb_free(msg_rx);
OSMO_ASSERT(!msg_tx);
fprintf(stderr, "- wrong autn (by one bit)\n");
osmo_hexparse("0102030405060708090a0b0c0d0e0f10",
oap_rx.rand, 16);
osmo_hexparse("dec4e3848a33000086781158ca40f136",
oap_rx.autn, 16);
oap_rx.rand_present = 1;
oap_rx.autn_present = 1;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == -2);
msgb_free(msg_rx);
OSMO_ASSERT(!msg_tx);
fprintf(stderr, "- all data correct\n");
osmo_hexparse("cec4e3848a33000086781158ca40f136",
oap_rx.autn, 16);
msg_rx = osmo_oap_client_encoded(&oap_rx);
fprintf(stderr, "- but refuse to evaluate in uninitialized state\n");
OSMO_ASSERT(state->state == OSMO_OAP_INITIALIZED);
state->state = OSMO_OAP_UNINITIALIZED;
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) < 0);
OSMO_ASSERT(!msg_tx);
state->state = OSMO_OAP_DISABLED;
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) < 0);
OSMO_ASSERT(!msg_tx);
state->state = OSMO_OAP_INITIALIZED;
fprintf(stderr, "- now everything is correct\n");
/* a successful return value here indicates correct autn */
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == 0);
msgb_free(msg_rx);
fprintf(stderr, "- Expect the challenge response in msg_tx\n");
OSMO_ASSERT(msg_tx);
OSMO_ASSERT(osmo_oap_decode(&oap_tx, msg_tx->data, msg_tx->len) == 0);
OSMO_ASSERT(oap_tx.message_type == OAP_MSGT_CHALLENGE_RESULT);
OSMO_ASSERT(strcmp("e2d05b598c61d9ba",
osmo_hexdump_nospc(oap_tx.xres, sizeof(oap_tx.xres)))
== 0);
OSMO_ASSERT(state->state == OSMO_OAP_SENT_CHALLENGE_RESULT);
msgb_free(msg_tx);
msg_tx = 0;
struct osmo_oap_client_state saved_state = _state;
fprintf(stderr, "- Receive registration error for the first time.\n");
memset(&oap_rx, 0, sizeof(oap_rx));
oap_rx.message_type = OAP_MSGT_REGISTER_ERROR;
oap_rx.cause = GMM_CAUSE_PROTO_ERR_UNSPEC;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(state->registration_failures == 0);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == 0);
OSMO_ASSERT(state->registration_failures == 1);
OSMO_ASSERT(msg_tx);
OSMO_ASSERT(osmo_oap_decode(&oap_tx, msg_tx->data, msg_tx->len) == 0);
OSMO_ASSERT(oap_tx.message_type == OAP_MSGT_REGISTER_REQUEST);
OSMO_ASSERT(state->state == OSMO_OAP_REQUESTED_CHALLENGE);
msgb_free(msg_tx);
msg_tx = 0;
fprintf(stderr, "- Receive registration error for the Nth time.\n");
state->registration_failures = 999;
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == -11);
OSMO_ASSERT(!msg_tx);
OSMO_ASSERT(state->state == OSMO_OAP_INITIALIZED);
msgb_free(msg_tx);
msg_tx = 0;
msgb_free(msg_rx);
fprintf(stderr, "- Registration success\n");
_state = saved_state;
memset(&oap_rx, 0, sizeof(oap_rx));
oap_rx.message_type = OAP_MSGT_REGISTER_RESULT;
msg_rx = osmo_oap_client_encoded(&oap_rx);
OSMO_ASSERT(osmo_oap_client_handle(state, msg_rx, &msg_tx) == 0);
OSMO_ASSERT(!msg_tx);
OSMO_ASSERT(state->state == OSMO_OAP_REGISTERED);
msgb_free(msg_rx);
}
static struct log_info_cat oap_client_test_categories[] = {
};
static struct log_info info = {
.cat = oap_client_test_categories,
.num_cat = ARRAY_SIZE(oap_client_test_categories),
};
int main(int argc, char **argv)
{
void *ctx = talloc_named_const(NULL, 0, "oap_client_test");
msgb_talloc_ctx_init(ctx, 0);
osmo_init_logging2(ctx, &info);
OSMO_ASSERT(osmo_stderr_target);
log_set_use_color(osmo_stderr_target, 0);
log_set_print_timestamp(osmo_stderr_target, 0);
log_set_print_filename(osmo_stderr_target, 0);
log_set_print_category(osmo_stderr_target, 1);
log_parse_category_mask(osmo_stderr_target, "DLOAP,1");
test_oap_api();
printf("Done\n");
return 0;
}
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