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osmo-msc/openbsc/tests/sccp/sccp_test.c

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/*
* SCCP testing code
*
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009 by On-Waves
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdio.h>
#include <arpa/inet.h>
#include <openbsc/gsm_data.h>
#include <openbsc/debug.h>
#include <osmocore/msgb.h>
#include <sccp/sccp.h>
#define MIN(x, y) ((x) < (y) ? (x) : (y))
/* BSC -> MSC */
static const uint8_t bssmap_reset[] = {
0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe,
0x02, 0x42, 0xfe, 0x06, 0x00, 0x04, 0x30, 0x04,
0x01, 0x20,
};
/* MSC -> BSC reset ack */
static const uint8_t bssmap_reset_ack[] = {
0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01,
0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x03,
0x00, 0x01, 0x31,
};
/* MSC -> BSC paging, connection less */
static const uint8_t bssmap_paging[] = {
0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01,
0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x10,
0x00, 0x0e, 0x52, 0x08, 0x08, 0x29, 0x47, 0x10,
0x02, 0x01, 0x31, 0x97, 0x61, 0x1a, 0x01, 0x06,
};
/* MSC -> BSC paging, UDT without PC */
static const uint8_t bssmap_udt[] = {
0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe,
0x02, 0x42, 0xfe, 0x10, 0x00, 0x0e, 0x52, 0x08,
0x08, 0x29, 0x47, 0x10, 0x02, 0x01, 0x31, 0x97,
0x61, 0x1a, 0x01, 0x06,
};
/* BSC -> MSC connection open */
static const uint8_t bssmap_cr[] = {
0x01, 0x01, 0x02, 0x03, 0x02, 0x02, 0x04, 0x02,
0x42, 0xfe, 0x0f, 0x1f, 0x00, 0x1d, 0x57, 0x05,
0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x12, 0xc3,
0x50, 0x17, 0x10, 0x05, 0x24, 0x11, 0x03, 0x33,
0x19, 0xa2, 0x08, 0x29, 0x47, 0x10, 0x02, 0x01,
0x31, 0x97, 0x61, 0x00
};
/* MSC -> BSC connection confirm */
static const uint8_t bssmap_cc[] = {
0x02, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00,
};
/* MSC -> BSC DTAP
*
* we fake a bit and make it BSC -> MSC... so the
* payload does not make any sense..
*/
static const uint8_t bssmap_dtap[] = {
0x06, 0x00, 0x00, 0x03, 0x00, 0x01, 0x0f, 0x01, 0x00, 0x0c,
0x03, 0x05, 0x5c, 0x08, 0x11, 0x81, 0x33, 0x66, 0x02, 0x13,
0x45, 0xf4,
};
/* MSC -> BSC clear command */
static const uint8_t bssmap_clear[] = {
0x06, 0x00, 0x00, 0x03, 0x00, 0x01, 0x06, 0x00, 0x04, 0x20,
0x04, 0x01, 0x09,
};
/* MSC -> BSC released */
static const uint8_t bssmap_released[] = {
0x04, 0x00, 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x01, 0x0f,
0x02, 0x23, 0x42, 0x00,
};
/* BSC -> MSC released */
static const uint8_t bssmap_release_complete[] = {
0x05, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03
};
struct test_data {
int length;
const uint8_t *data;
int payload_start;
int payload_length;
uint8_t first_byte;
/* in case it should trigger a sccp response */
int write;
const uint8_t *response;
int response_length;
};
static const struct test_data test_data[] = {
{
.length = ARRAY_SIZE(bssmap_reset),
.data = &bssmap_reset[0],
.payload_start = 12,
.payload_length = ARRAY_SIZE(bssmap_reset) - 12,
.first_byte = 0x0,
},
{
.length = ARRAY_SIZE(bssmap_reset_ack),
.data = &bssmap_reset_ack[0],
.payload_start = 16,
.payload_length = ARRAY_SIZE(bssmap_reset_ack) - 16,
.first_byte = 0x0,
},
{
.length = ARRAY_SIZE(bssmap_paging),
.data = &bssmap_paging[0],
.payload_start = 16,
.payload_length = ARRAY_SIZE(bssmap_paging) - 16,
.first_byte = 0x0,
},
{
.length = ARRAY_SIZE(bssmap_cr),
.data = &bssmap_cr[0],
.payload_start = 12,
/* 0x00 is end of optional data, subtract this byte */
.payload_length = 31,
.first_byte = 0x0,
/* the connection request should trigger a connection confirm */
.write = 1,
.response = &bssmap_cc[0],
.response_length= ARRAY_SIZE(bssmap_cc),
},
{
.length = ARRAY_SIZE(bssmap_dtap),
.data = &bssmap_dtap[0],
.payload_start = 7,
.payload_length = 15,
.first_byte = 0x01,
},
{
.length = ARRAY_SIZE(bssmap_clear),
.data = &bssmap_clear[0],
.payload_start = 7,
.payload_length = 6,
.first_byte = 0x00,
},
{
.length = ARRAY_SIZE(bssmap_released),
.data = &bssmap_released[0],
.payload_length = 2,
.payload_start = 11,
.first_byte = 0x23,
.write = 1,
.response = &bssmap_release_complete[0],
.response_length= ARRAY_SIZE(bssmap_release_complete),
},
};
/* we will send UDTs and verify they look like this */
static const struct test_data send_data[] = {
{
.length = ARRAY_SIZE(bssmap_udt),
.data = &bssmap_udt[0],
.payload_start = 12,
.payload_length = ARRAY_SIZE(bssmap_udt) - 12,
.first_byte = 0x0,
},
{
.length = ARRAY_SIZE(bssmap_reset),
.data = &bssmap_reset[0],
.payload_start = 12,
.payload_length = ARRAY_SIZE(bssmap_reset) - 12,
.first_byte = 0x0,
},
};
struct connection_test {
/* should the connection be refused? */
int refuse;
int with_data;
/* on which side to close the connection? */
int close_side;
int close_cause;
};
/* sccp connection handling we want to test */
static const struct connection_test connection_tests[] = {
{
.refuse = 1,
},
{
.refuse = 1,
.with_data = 1,
},
{
.refuse = 0,
.close_side = 0,
.close_cause = 5,
},
{
.refuse = 0,
.close_side = 0,
.close_cause = 5,
.with_data = 1,
},
{
.refuse = 0,
.close_side = 1,
.close_cause = 5,
},
{
.refuse = 0,
.close_side = 1,
.close_cause = 5,
.with_data = 1,
},
};
struct sccp_parse_header_result {
/* results */
int msg_type;
int wanted_len;
int src_ssn;
int dst_ssn;
int has_src_ref, has_dst_ref;
struct sccp_source_reference src_ref;
struct sccp_source_reference dst_ref;
/* the input */
const uint8_t *input;
int input_len;
};
static const uint8_t it_test[] = {
0x10, 0x01, 0x07,
0x94, 0x01, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00 };
static const uint8_t proto_err[] = {
0x0f, 0x0c, 0x04, 0x00, 0x00,
};
static const struct sccp_parse_header_result parse_result[] = {
{
.msg_type = SCCP_MSG_TYPE_IT,
.wanted_len = 0,
.src_ssn = -1,
.dst_ssn = -1,
.has_src_ref = 1,
.has_dst_ref = 1,
.src_ref = {
.octet1 = 0x01,
.octet2 = 0x04,
.octet3 = 0x00
},
.dst_ref = {
.octet1 = 0x01,
.octet2 = 0x07,
.octet3 = 0x94,
},
.input = it_test,
.input_len = sizeof(it_test),
},
{
.msg_type = SCCP_MSG_TYPE_ERR,
.wanted_len = 0,
.src_ssn = -1,
.dst_ssn = -1,
.has_src_ref = 0,
.has_dst_ref = 1,
.dst_ref = {
.octet1 = 0x0c,
.octet2 = 0x04,
.octet3 = 0x00,
},
.input = proto_err,
.input_len = sizeof(proto_err),
},
};
/* testing procedure:
* - we will use sccp_write and see what will be set in the
* outgoing callback
* - we will call sccp_system_incoming and see which calls
* are made. And then compare it to the ones we expect. We
* want the payload to arrive, or callbacks to be called.
* - we will use sccp_connection_socket and sccp_connection_write
* and verify state handling of connections
*/
static int current_test;
/*
* test state...
*/
static int called = 0;
static int matched = 0;
static int write_called = 0;
#define FAIL(x, args...) printf("FAILURE in %s:%d: " x, __FILE__, __LINE__, ## args)
/*
* writing these packets and expecting a result
*/
int sccp_read_cb(struct msgb *data, unsigned len, void *context)
{
uint16_t payload_length = test_data[current_test].payload_length;
const uint8_t *got, *wanted;
int i;
called = 1;
if (msgb_l3len(data) < len) {
/* this should never be reached */
FAIL("Something horrible happened.. invalid packet..\n");
exit(-1);
}
if (len == 0 || len != payload_length) {
FAIL("length mismatch: got: %d wanted: %d\n", msgb_l3len(data), payload_length);
return -1;
}
if (data->l3h[0] != test_data[current_test].first_byte) {
FAIL("The first bytes of l3 do not match: 0x%x 0x%x\n",
data->l3h[0], test_data[current_test].first_byte);
return -1;
}
got = &data->l3h[0];
wanted = test_data[current_test].data + test_data[current_test].payload_start;
for (i = 0; i < len; ++i) {
if (got[i] != wanted[i]) {
FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n",
got[i], wanted[i], i);
return -1;
}
}
matched = 1;
return 0;
}
void sccp_write_cb(struct msgb *data, void *ctx)
{
int i = 0;
const uint8_t *got, *wanted;
if (test_data[current_test].response == NULL) {
FAIL("Didn't expect write callback\n");
goto exit;
} else if (test_data[current_test].response_length != msgb_l2len(data)) {
FAIL("Size does not match. Got: %d Wanted: %d\n",
msgb_l2len(data), test_data[current_test].response_length);
}
got = &data->l2h[0];
wanted = test_data[current_test].response;
for (i = 0; i < msgb_l2len(data); ++i) {
if (got[i] != wanted[i]) {
FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n",
got[i], wanted[i], i);
goto exit;
}
}
write_called = 1;
exit:
msgb_free(data);
}
void sccp_c_read(struct sccp_connection *connection, struct msgb *msgb, unsigned int len)
{
sccp_read_cb(msgb, len, connection->data_ctx);
}
void sccp_c_state(struct sccp_connection *connection, int old_state)
{
if (connection->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE)
sccp_connection_free(connection);
}
int sccp_accept_cb(struct sccp_connection *connection, void *user_data)
{
called = 1;
unsigned int ref = 0;
ref |= connection->destination_local_reference.octet1 << 24;
ref |= connection->destination_local_reference.octet2 << 16;
ref |= connection->destination_local_reference.octet3 << 8;
ref = ntohl(ref);
connection->data_cb = sccp_c_read;
connection->state_cb = sccp_c_state;
/* accept this */
return 0;
}
static void sccp_udt_write_cb(struct msgb *data, void *context)
{
const uint8_t *got, *wanted;
int i;
write_called = 1;
if (send_data[current_test].length != msgb_l2len(data)) {
FAIL("Size does not match. Got: %d Wanted: %d\n",
msgb_l2len(data), send_data[current_test].length);
goto exit;
}
got = &data->l2h[0];
wanted = send_data[current_test].data;
for (i = 0; i < msgb_l2len(data); ++i) {
if (got[i] != wanted[i]) {
FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n",
got[i], wanted[i], i);
goto exit;
}
}
matched = 1;
exit:
msgb_free(data);
}
static void test_sccp_system(void)
{
sccp_system_init(sccp_write_cb, NULL);
sccp_set_read(&sccp_ssn_bssap, sccp_read_cb, NULL);
sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_accept_cb, NULL);
for (current_test = 0; current_test < ARRAY_SIZE(test_data); ++current_test) {
unsigned int length = test_data[current_test].length;
struct msgb *msg = msgb_alloc_headroom(length + 2, 2, __func__);
msg->l2h = msgb_put(msg, length);
memcpy(msg->l2h, test_data[current_test].data, length);
called = matched = write_called = 0;
printf("Testing packet: %d\n", current_test);
sccp_system_incoming(msg);
if (!called || !matched || (test_data[current_test].write != write_called))
FAIL("current test: %d called: %d matched: %d write: %d\n",
current_test, called, matched, write_called);
msgb_free(msg);
}
}
/* test sending of udt */
static void test_sccp_send_udt(void)
{
sccp_system_init(sccp_udt_write_cb, NULL);
sccp_set_read(NULL, NULL, NULL);
sccp_connection_set_incoming(NULL, NULL, NULL);
for (current_test = 0; current_test < ARRAY_SIZE(send_data); ++current_test) {
const struct test_data *test = &send_data[current_test];
struct msgb *msg = msgb_alloc(test->payload_length, __func__);
msg->l3h = msgb_put(msg, test->payload_length);
memcpy(msg->l3h, test->data + test->payload_start, test->payload_length);
matched = write_called = 0;
printf("Testing packet: %d\n", current_test);
sccp_write(msg, &sccp_ssn_bssap, &sccp_ssn_bssap, 0);
if (!matched || !write_called)
FAIL("current test: %d matched: %d write: %d\n",
current_test, matched, write_called);
msgb_free(msg);
}
}
/* send udt from one end to another */
static unsigned int test_value = 0x2442;
static int sccp_udt_read(struct msgb *data, unsigned int len, void *context)
{
unsigned int *val;
if (len != 4) {
FAIL("Wrong size: %d\n", msgb_l3len(data));
return -1;
}
val = (unsigned int*)data->l3h;
matched = test_value == *val;
return 0;
}
static void sccp_write_loop(struct msgb *data, void *context)
{
/* send it back to us */
sccp_system_incoming(data);
msgb_free(data);
}
static void test_sccp_udt_communication(void)
{
struct msgb *data;
unsigned int *val;
sccp_system_init(sccp_write_loop, NULL);
sccp_set_read(&sccp_ssn_bssap, sccp_udt_read, NULL);
sccp_connection_set_incoming(NULL, NULL, NULL);
data = msgb_alloc(4, "test data");
data->l3h = &data->data[0];
val = (unsigned int *)msgb_put(data, 4);
*val = test_value;
matched = 0;
sccp_write(data, &sccp_ssn_bssap, &sccp_ssn_bssap, 0);
if (!matched)
FAIL("Talking with us didn't work\n");
msgb_free(data);
}
/* connection testing... open, send, close */
static const struct connection_test *current_con_test;
static struct sccp_connection *outgoing_con;
static struct sccp_connection *incoming_con;
static int outgoing_data, incoming_data, incoming_state, outgoing_state;
static struct msgb *test_data1, *test_data2, *test_data3;
static void sccp_conn_in_state(struct sccp_connection *conn, int old_state)
{
printf("\tincome: %d -> %d\n", old_state, conn->connection_state);
if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) {
if (conn == incoming_con) {
sccp_connection_free(conn);
incoming_con = NULL;
}
}
}
static void sccp_conn_in_data(struct sccp_connection *conn, struct msgb *msg, unsigned int len)
{
/* compare the data */
++incoming_data;
printf("\tincoming data: %d\n", len);
/* compare the data */
if (len != 4) {
FAIL("Length of packet is wrong: %u %u\n", msgb_l3len(msg), len);
return;
}
if (incoming_data == 1) {
if (memcmp(msg->l3h, test_data1->l3h, len) != 0) {
FAIL("Comparing the data failed: %d\n", incoming_data);
incoming_state = 0;
printf("Got: %s\n", hexdump(msg->l3h, len));
printf("Wanted: %s\n", hexdump(test_data1->l3h, len));
}
} else if (incoming_data == 2) {
if (memcmp(msg->l3h, test_data2->l3h, len) != 0) {
FAIL("Comparing the data failed: %d\n", incoming_data);
incoming_state = 0;
printf("Got: %s\n", hexdump(msg->l3h, len));
printf("Wanted: %s\n", hexdump(test_data2->l3h, len));
}
}
/* sending out data */
if (incoming_data == 2) {
printf("\tReturning data3\n");
sccp_connection_write(conn, test_data3);
}
}
static int sccp_conn_accept(struct sccp_connection *conn, void *ctx)
{
printf("\taccept: %p\n", conn);
conn->state_cb = sccp_conn_in_state;
conn->data_cb = sccp_conn_in_data;
if (current_con_test->refuse)
return -1;
incoming_con = conn;
return 0;
}
/* callbacks for the outgoing side */
static void sccp_conn_out_state(struct sccp_connection *conn, int old_state)
{
printf("\toutgoing: %p %d -> %d\n", conn, old_state, conn->connection_state);
if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) {
if (conn == outgoing_con) {
sccp_connection_free(conn);
outgoing_con = NULL;
}
}
}
static void sccp_conn_out_data(struct sccp_connection *conn, struct msgb *msg, unsigned int len)
{
++outgoing_data;
printf("\toutgoing data: %p %d\n", conn, len);
if (len != 4)
FAIL("Length of packet is wrong: %u %u\n", msgb_l3len(msg), len);
if (outgoing_data == 1) {
if (memcmp(msg->l3h, test_data3->l3h, len) != 0) {
FAIL("Comparing the data failed\n");
outgoing_state = 0;
}
}
}
static void do_test_sccp_connection(const struct connection_test *test)
{
int ret;
current_con_test = test;
outgoing_con = incoming_con = 0;
outgoing_con = sccp_connection_socket();
if (!outgoing_con) {
FAIL("Connection is NULL\n");
return;
}
outgoing_con->state_cb = sccp_conn_out_state;
outgoing_con->data_cb = sccp_conn_out_data;
outgoing_data = incoming_data = 0;
incoming_state = outgoing_state = 1;
/* start testing */
if (test->with_data) {
if (sccp_connection_connect(outgoing_con, &sccp_ssn_bssap, test_data1) != 0)
FAIL("Binding failed\n");
} else {
++incoming_data;
if (sccp_connection_connect(outgoing_con, &sccp_ssn_bssap, NULL) != 0)
FAIL("Binding failed\n");
}
if (test->refuse) {
if (outgoing_con)
FAIL("Outgoing connection should have been refused.\n");
} else {
if (!incoming_con)
FAIL("Creating incoming didn't work.\n");
printf("\tWriting test data2\n");
sccp_connection_write(outgoing_con, test_data2);
sccp_connection_send_it(outgoing_con);
/* closing connection */
if (test->close_side == 0)
ret = sccp_connection_close(outgoing_con, 0);
else
ret = sccp_connection_close(incoming_con, 0);
if (ret != 0)
FAIL("Closing the connection failed\n");
}
/* outgoing should be gone now */
if (outgoing_con)
FAIL("Outgoing connection was not properly closed\n");
if (incoming_con)
FAIL("Incoming connection was not propery closed.\n");
if (test->refuse == 0) {
if (outgoing_data != 1 || incoming_data != 2) {
FAIL("Data sending failed: %d/%d %d/%d\n",
outgoing_data, 1,
incoming_data, 2);
}
}
if (!incoming_state || !outgoing_state)
FAIL("Failure with the state transition. %d %d\n",
outgoing_state, incoming_state);
}
static void test_sccp_connection(void)
{
sccp_system_init(sccp_write_loop, NULL);
sccp_set_read(NULL, NULL, NULL);
sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_conn_accept, NULL);
test_data1 = msgb_alloc(4, "data1");
test_data1->l3h = msgb_put(test_data1, 4);
*((unsigned int*)test_data1->l3h) = 0x23421122;
test_data2 = msgb_alloc(4, "data2");
test_data2->l3h = msgb_put(test_data2, 4);
*((unsigned int*)test_data2->l3h) = 0x42232211;
test_data3 = msgb_alloc(4, "data3");
test_data3->l3h = msgb_put(test_data3, 4);
*((unsigned int*)test_data3->l3h) = 0x2323ff55;
for (current_test = 0; current_test < ARRAY_SIZE(connection_tests); ++current_test) {
printf("Testing %d refuse: %d with_data: %d\n",
current_test, connection_tests[current_test].refuse,
connection_tests[current_test].with_data);
do_test_sccp_connection(&connection_tests[current_test]);
}
msgb_free(test_data1);
msgb_free(test_data2);
msgb_free(test_data3);
}
/* invalid input */
static void test_sccp_system_crash(void)
{
printf("trying to provoke a crash with invalid input\n");
sccp_set_read(&sccp_ssn_bssap, sccp_read_cb, NULL);
sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_accept_cb, NULL);
for (current_test = 0; current_test < ARRAY_SIZE(test_data); ++current_test) {
int original_length = test_data[current_test].length;
int length = original_length + 2;
int i;
printf("Testing packet: %d\n", current_test);
for (i = length; i >= 0; --i) {
unsigned int length = MIN(test_data[current_test].length, i);
struct msgb *msg = msgb_alloc_headroom(length + 2, 2, __func__);
msg->l2h = msgb_put(msg, length);
memcpy(msg->l2h, test_data[current_test].data, length);
sccp_system_incoming(msg);
msgb_free(msg);
}
}
printf("survived\n");
}
static void test_sccp_parsing(void)
{
for (current_test = 0; current_test < ARRAY_SIZE(parse_result); ++current_test) {
struct msgb *msg;
struct sccp_parse_result result;
msg = msgb_alloc_headroom(1024, 128, "parse-test");
msgb_put(msg, 1);
msg->l2h = msgb_put(msg, parse_result[current_test].input_len);
memcpy(msg->l2h, parse_result[current_test].input, msgb_l2len(msg));
memset(&result, 0, sizeof(result));
if (sccp_parse_header(msg, &result) != 0) {
fprintf(stderr, "Failed to sccp parse test: %d\n", current_test);
} else {
if (parse_result[current_test].wanted_len != result.data_len) {
fprintf(stderr, "Unexpected data length.\n");
abort();
}
if (parse_result[current_test].has_src_ref) {
if (memcmp(result.source_local_reference,
&parse_result[current_test].src_ref,
sizeof(struct sccp_source_reference)) != 0) {
fprintf(stderr, "SRC REF did not match\n");
abort();
}
}
if (parse_result[current_test].has_dst_ref) {
if (memcmp(result.destination_local_reference,
&parse_result[current_test].dst_ref,
sizeof(struct sccp_source_reference)) != 0) {
fprintf(stderr, "DST REF did not match\n");
abort();
}
}
if (parse_result[current_test].src_ssn != -1) {
fprintf(stderr, "Not implemented.\n");
abort();
}
if (parse_result[current_test].dst_ssn != -1) {
fprintf(stderr, "Not implemented.\n");
abort();
}
}
msgb_free(msg);
}
}
int main(int argc, char **argv)
{
test_sccp_system();
test_sccp_send_udt();
test_sccp_udt_communication();
test_sccp_connection();
test_sccp_system_crash();
test_sccp_parsing();
return 0;
}
void db_store_counter() {}
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