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osmo-pcu/tests/edge/EdgeTest.cpp

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/*
* EdgeTest.cpp
*
* Copyright (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 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 "gprs_debug.h"
#include "gprs_coding_scheme.h"
#include "decoding.h"
#include "rlc.h"
extern "C" {
#include "pcu_vty.h"
#include <osmocom/core/application.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include <osmocom/vty/vty.h>
}
#include <errno.h>
void *tall_pcu_ctx;
int16_t spoof_mnc = 0, spoof_mcc = 0;
static void check_coding_scheme(GprsCodingScheme& cs, GprsCodingScheme::Mode mode)
{
volatile unsigned expected_size;
GprsCodingScheme new_cs;
OSMO_ASSERT(cs.isValid());
OSMO_ASSERT(cs.isCompatible(mode));
/* Check static getBySizeUL() */
expected_size = cs.maxBytesUL();
if (cs.spareBitsUL() > 0)
expected_size += 1;
OSMO_ASSERT(expected_size == cs.sizeUL());
OSMO_ASSERT(cs == GprsCodingScheme::getBySizeUL(expected_size));
/* Check static sizeUL() */
expected_size = cs.maxBytesDL();
if (cs.spareBitsDL() > 0)
expected_size += 1;
OSMO_ASSERT(expected_size == cs.sizeDL());
/* Check data block sizes */
OSMO_ASSERT(cs.maxDataBlockBytes() * cs.numDataBlocks() < cs.maxBytesDL());
OSMO_ASSERT(cs.maxDataBlockBytes() * cs.numDataBlocks() < cs.maxBytesUL());
/* Check inc/dec */
new_cs = cs;
new_cs.inc(mode);
OSMO_ASSERT(new_cs.isCompatible(mode));
if (new_cs != cs) {
new_cs.dec(mode);
OSMO_ASSERT(new_cs.isCompatible(mode));
OSMO_ASSERT(new_cs == cs);
}
new_cs.dec(mode);
OSMO_ASSERT(new_cs.isCompatible(mode));
if (new_cs != cs) {
new_cs.inc(mode);
OSMO_ASSERT(new_cs.isCompatible(mode));
OSMO_ASSERT(new_cs == cs);
}
}
static void test_coding_scheme()
{
unsigned i;
unsigned last_size_UL;
unsigned last_size_DL;
GprsCodingScheme::Scheme gprs_schemes[] = {
GprsCodingScheme::CS1,
GprsCodingScheme::CS2,
GprsCodingScheme::CS3,
GprsCodingScheme::CS4
};
struct {
GprsCodingScheme::Scheme s;
bool is_gmsk;
} egprs_schemes[] = {
{GprsCodingScheme::MCS1, true},
{GprsCodingScheme::MCS2, true},
{GprsCodingScheme::MCS3, true},
{GprsCodingScheme::MCS4, true},
{GprsCodingScheme::MCS5, false},
{GprsCodingScheme::MCS6, false},
{GprsCodingScheme::MCS7, false},
{GprsCodingScheme::MCS8, false},
{GprsCodingScheme::MCS9, false},
};
printf("=== start %s ===\n", __func__);
GprsCodingScheme cs;
OSMO_ASSERT(!cs);
OSMO_ASSERT(cs == GprsCodingScheme::UNKNOWN);
OSMO_ASSERT(!cs.isCompatible(GprsCodingScheme::GPRS));
OSMO_ASSERT(!cs.isCompatible(GprsCodingScheme::EGPRS_GMSK));
OSMO_ASSERT(!cs.isCompatible(GprsCodingScheme::EGPRS));
last_size_UL = 0;
last_size_DL = 0;
for (i = 0; i < ARRAY_SIZE(gprs_schemes); i++) {
GprsCodingScheme current_cs(gprs_schemes[i]);
OSMO_ASSERT(current_cs.isGprs());
OSMO_ASSERT(!current_cs.isEgprs());
OSMO_ASSERT(!current_cs.isEgprsGmsk());
OSMO_ASSERT(current_cs == gprs_schemes[i]);
OSMO_ASSERT(current_cs == GprsCodingScheme(gprs_schemes[i]));
/* Check strong monotonicity */
OSMO_ASSERT(current_cs.maxBytesUL() > last_size_UL);
OSMO_ASSERT(current_cs.maxBytesDL() > last_size_DL);
last_size_UL = current_cs.maxBytesUL();
last_size_DL = current_cs.maxBytesDL();
/* Check header types */
OSMO_ASSERT(current_cs.headerTypeData() ==
GprsCodingScheme::HEADER_GPRS_DATA);
OSMO_ASSERT(current_cs.headerTypeControl() ==
GprsCodingScheme::HEADER_GPRS_CONTROL);
check_coding_scheme(current_cs, GprsCodingScheme::GPRS);
}
OSMO_ASSERT(i == 4);
last_size_UL = 0;
last_size_DL = 0;
for (i = 0; i < ARRAY_SIZE(egprs_schemes); i++) {
GprsCodingScheme current_cs(egprs_schemes[i].s);
OSMO_ASSERT(!current_cs.isGprs());
OSMO_ASSERT(current_cs.isEgprs());
OSMO_ASSERT(!!current_cs.isEgprsGmsk() == !!egprs_schemes[i].is_gmsk);
OSMO_ASSERT(current_cs == egprs_schemes[i].s);
OSMO_ASSERT(current_cs == GprsCodingScheme(egprs_schemes[i].s));
/* Check strong monotonicity */
OSMO_ASSERT(current_cs.maxBytesUL() > last_size_UL);
OSMO_ASSERT(current_cs.maxBytesDL() > last_size_DL);
last_size_UL = current_cs.maxBytesUL();
last_size_DL = current_cs.maxBytesDL();
if (egprs_schemes[i].is_gmsk)
check_coding_scheme(current_cs, GprsCodingScheme::EGPRS_GMSK);
check_coding_scheme(current_cs, GprsCodingScheme::EGPRS);
}
OSMO_ASSERT(i == 9);
printf("=== end %s ===\n", __func__);
}
static void test_rlc_unit_decoder()
{
struct gprs_rlc_ul_data_block_info rdbi = {0};
GprsCodingScheme cs;
uint8_t data[74];
Decoding::RlcData chunks[16];
volatile int num_chunks = 0;
uint32_t tlli, tlli2;
unsigned int offs;
printf("=== start %s ===\n", __func__);
/* TS 44.060, B.1 */
cs = GprsCodingScheme::CS4;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = (11 << 2) | (1 << 1) | (0 << 0);
data[offs++] = (26 << 2) | (1 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 3);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 2);
OSMO_ASSERT(chunks[0].length == 11);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 13);
OSMO_ASSERT(chunks[1].length == 26);
OSMO_ASSERT(chunks[1].is_complete);
OSMO_ASSERT(chunks[2].offset == 39);
OSMO_ASSERT(chunks[2].length == cs.maxDataBlockBytes() - 39);
OSMO_ASSERT(!chunks[2].is_complete);
/* TS 44.060, B.2 */
cs = GprsCodingScheme::CS1;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = (0 << 2) | (0 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 1);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 1);
OSMO_ASSERT(chunks[0].length == 19);
OSMO_ASSERT(!chunks[0].is_complete);
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = (1 << 2) | (1 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 2);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 1);
OSMO_ASSERT(chunks[0].length == 1);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 2);
OSMO_ASSERT(chunks[1].length == 18);
OSMO_ASSERT(!chunks[1].is_complete);
/* TS 44.060, B.3 */
cs = GprsCodingScheme::CS1;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = (7 << 2) | (1 << 1) | (0 << 0);
data[offs++] = (11 << 2) | (0 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 2);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 2);
OSMO_ASSERT(chunks[0].length == 7);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 9);
OSMO_ASSERT(chunks[1].length == 11);
OSMO_ASSERT(chunks[1].is_complete);
/* TS 44.060, B.4 */
cs = GprsCodingScheme::CS1;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 1;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 1);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 0);
OSMO_ASSERT(chunks[0].length == 20);
OSMO_ASSERT(!chunks[0].is_complete);
/* TS 44.060, B.6 */
cs = GprsCodingScheme::CS1;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 1;
rdbi.ti = 0;
rdbi.cv = 0;
tlli = 0;
offs = 0;
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 1);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 0);
OSMO_ASSERT(chunks[0].length == 20);
OSMO_ASSERT(chunks[0].is_complete);
/* TS 44.060, B.8.1 */
cs = GprsCodingScheme::MCS4;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = (11 << 1) | (0 << 0);
data[offs++] = (26 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 3);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 2);
OSMO_ASSERT(chunks[0].length == 11);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 13);
OSMO_ASSERT(chunks[1].length == 26);
OSMO_ASSERT(chunks[1].is_complete);
OSMO_ASSERT(chunks[2].offset == 39);
OSMO_ASSERT(chunks[2].length == 5);
OSMO_ASSERT(!chunks[2].is_complete);
/* TS 44.060, B.8.2 */
/* Note that the spec confuses the byte numbering here, since it
* includes the FBI/E header bits into the N2 octet count which
* is not consistent with Section 10.3a.1 & 10.3a.2. */
cs = GprsCodingScheme::MCS2;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = (15 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 2);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 1);
OSMO_ASSERT(chunks[0].length == 15);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 16);
OSMO_ASSERT(chunks[1].length == 12);
OSMO_ASSERT(!chunks[1].is_complete);
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 15;
tlli = 0;
offs = 0;
data[offs++] = ( 0 << 1) | (0 << 0);
data[offs++] = ( 7 << 1) | (0 << 0);
data[offs++] = (18 << 1) | (1 << 0); /* Differs from spec's N2-11 = 17 */
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 3);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 3);
OSMO_ASSERT(chunks[0].length == 0);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 3);
OSMO_ASSERT(chunks[1].length == 7);
OSMO_ASSERT(chunks[1].is_complete);
OSMO_ASSERT(chunks[2].offset == 10);
OSMO_ASSERT(chunks[2].length == 18);
OSMO_ASSERT(chunks[2].is_complete);
rdbi.e = 0;
rdbi.ti = 0;
rdbi.cv = 0;
tlli = 0;
offs = 0;
data[offs++] = ( 6 << 1) | (0 << 0);
data[offs++] = (12 << 1) | (0 << 0);
data[offs++] = (127 << 1) | (1 << 0);
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 2);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 3);
OSMO_ASSERT(chunks[0].length == 6);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 9);
OSMO_ASSERT(chunks[1].length == 12);
OSMO_ASSERT(chunks[1].is_complete);
/* TS 44.060, B.8.3 */
/* Note that the spec confuses the byte numbering here, too (see above) */
cs = GprsCodingScheme::MCS2;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 1;
rdbi.ti = 0;
rdbi.cv = 0;
tlli = 0;
offs = 0;
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 1);
OSMO_ASSERT(tlli == 0);
OSMO_ASSERT(chunks[0].offset == 0);
OSMO_ASSERT(chunks[0].length == 28);
OSMO_ASSERT(chunks[0].is_complete);
/* CS-1, TLLI, last block, single chunk until the end of the block */
cs = GprsCodingScheme::CS1;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 1;
rdbi.ti = 1;
rdbi.cv = 0;
tlli = 0;
tlli2 = 0xffeeddcc;
offs = 0;
data[offs++] = tlli2 >> 24;
data[offs++] = tlli2 >> 16;
data[offs++] = tlli2 >> 8;
data[offs++] = tlli2 >> 0;
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 1);
OSMO_ASSERT(tlli == tlli2);
OSMO_ASSERT(chunks[0].offset == 4);
OSMO_ASSERT(chunks[0].length == 16);
OSMO_ASSERT(chunks[0].is_complete);
/* Like TS 44.060, B.2, first RLC block but with TLLI */
cs = GprsCodingScheme::CS1;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 1;
rdbi.cv = 15;
tlli = 0;
tlli2 = 0xffeeddbb;
offs = 0;
data[offs++] = (0 << 2) | (0 << 1) | (1 << 0);
data[offs++] = tlli2 >> 24;
data[offs++] = tlli2 >> 16;
data[offs++] = tlli2 >> 8;
data[offs++] = tlli2 >> 0;
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 1);
OSMO_ASSERT(tlli == tlli2);
OSMO_ASSERT(chunks[0].offset == 5);
OSMO_ASSERT(chunks[0].length == 15);
OSMO_ASSERT(!chunks[0].is_complete);
/* Like TS 44.060, B.8.1 but with TLLI */
cs = GprsCodingScheme::MCS4;
rdbi.data_len = cs.maxDataBlockBytes();
rdbi.e = 0;
rdbi.ti = 1;
rdbi.cv = 15;
tlli = 0;
tlli2 = 0xffeeddaa;
offs = 0;
data[offs++] = (11 << 1) | (0 << 0);
data[offs++] = (26 << 1) | (1 << 0);
/* Little endian */
data[offs++] = tlli2 >> 0;
data[offs++] = tlli2 >> 8;
data[offs++] = tlli2 >> 16;
data[offs++] = tlli2 >> 24;
num_chunks = Decoding::rlc_data_from_ul_data(&rdbi, cs, data,
chunks, ARRAY_SIZE(chunks), &tlli);
OSMO_ASSERT(num_chunks == 3);
OSMO_ASSERT(tlli == tlli2);
OSMO_ASSERT(chunks[0].offset == 6);
OSMO_ASSERT(chunks[0].length == 11);
OSMO_ASSERT(chunks[0].is_complete);
OSMO_ASSERT(chunks[1].offset == 17);
OSMO_ASSERT(chunks[1].length == 26);
OSMO_ASSERT(chunks[1].is_complete);
OSMO_ASSERT(chunks[2].offset == 43);
OSMO_ASSERT(chunks[2].length == 1);
OSMO_ASSERT(!chunks[2].is_complete);
printf("=== end %s ===\n", __func__);
}
static const struct log_info_cat default_categories[] = {
{"DCSN1", "\033[1;31m", "Concrete Syntax Notation One (CSN1)", LOGL_INFO, 0},
{"DL1IF", "\033[1;32m", "GPRS PCU L1 interface (L1IF)", LOGL_DEBUG, 1},
{"DRLCMAC", "\033[0;33m", "GPRS RLC/MAC layer (RLCMAC)", LOGL_DEBUG, 1},
{"DRLCMACDATA", "\033[0;33m", "GPRS RLC/MAC layer Data (RLCMAC)", LOGL_DEBUG, 1},
{"DRLCMACDL", "\033[1;33m", "GPRS RLC/MAC layer Downlink (RLCMAC)", LOGL_DEBUG, 1},
{"DRLCMACUL", "\033[1;36m", "GPRS RLC/MAC layer Uplink (RLCMAC)", LOGL_DEBUG, 1},
{"DRLCMACSCHED", "\033[0;36m", "GPRS RLC/MAC layer Scheduling (RLCMAC)", LOGL_DEBUG, 1},
{"DRLCMACMEAS", "\033[1;31m", "GPRS RLC/MAC layer Measurements (RLCMAC)", LOGL_INFO, 1},
{"DNS","\033[1;34m", "GPRS Network Service Protocol (NS)", LOGL_INFO , 1},
{"DBSSGP","\033[1;34m", "GPRS BSS Gateway Protocol (BSSGP)", LOGL_INFO , 1},
{"DPCU", "\033[1;35m", "GPRS Packet Control Unit (PCU)", LOGL_NOTICE, 1},
};
static int filter_fn(const struct log_context *ctx,
struct log_target *tar)
{
return 1;
}
const struct log_info debug_log_info = {
filter_fn,
(struct log_info_cat*)default_categories,
ARRAY_SIZE(default_categories),
};
int main(int argc, char **argv)
{
struct vty_app_info pcu_vty_info = {0};
tall_pcu_ctx = talloc_named_const(NULL, 1, "EdgeTest context");
if (!tall_pcu_ctx)
abort();
msgb_set_talloc_ctx(tall_pcu_ctx);
osmo_init_logging(&debug_log_info);
log_set_use_color(osmo_stderr_target, 0);
log_set_print_filename(osmo_stderr_target, 0);
vty_init(&pcu_vty_info);
pcu_vty_init(&debug_log_info);
test_coding_scheme();
test_rlc_unit_decoder();
if (getenv("TALLOC_REPORT_FULL"))
talloc_report_full(tall_pcu_ctx, stderr);
return EXIT_SUCCESS;
}
/*
* stubs that should not be reached
*/
extern "C" {
void l1if_pdch_req() { abort(); }
void l1if_connect_pdch() { abort(); }
void l1if_close_pdch() { abort(); }
void l1if_open_pdch() { abort(); }
}
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