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osmo-pcu
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osmo-pcu/tests/types/TypesTest.cpp

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/*
* TypesTest.cpp Test the primitive data types
*
* Copyright (C) 2013 by Holger Hans Peter Freyther
* Copyright (C) 2019 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 "bts.h"
#include "tbf.h"
#include "tbf_ul.h"
#include "tbf_dl.h"
#include "pcu_utils.h"
#include "gprs_debug.h"
#include "encoding.h"
#include "decoding.h"
#include "gprs_rlcmac.h"
#include "egprs_rlc_compression.h"
extern "C" {
#include <osmocom/core/application.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/bits.h>
#include <osmocom/core/fsm.h>
}
#define OSMO_ASSERT_STR_EQ(a, b) \
do { \
if (strcmp(a, b)) { \
printf("String mismatch:\nGot:\t%s\nWant:\t%s\n", a, b); \
OSMO_ASSERT(false); \
} \
} while (0)
void *tall_pcu_ctx;
int16_t spoof_mnc = 0, spoof_mcc = 0;
bool spoof_mnc_3_digits = false;
static void test_llc(void)
{
{
uint8_t data[LLC_MAX_LEN] = {1, 2, 3, 4, };
uint8_t out;
gprs_llc llc;
llc.init();
OSMO_ASSERT(llc_chunk_size(&llc) == 0);
OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN);
OSMO_ASSERT(llc_frame_length(&llc) == 0);
llc.put_frame(data, 2);
OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN - 2);
OSMO_ASSERT(llc_frame_length(&llc) == 2);
OSMO_ASSERT(llc_chunk_size(&llc) == 2);
OSMO_ASSERT(llc.frame[0] == 1);
OSMO_ASSERT(llc.frame[1] == 2);
llc.append_frame(&data[3], 1);
OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN - 3);
OSMO_ASSERT(llc_frame_length(&llc) == 3);
OSMO_ASSERT(llc_chunk_size(&llc) == 3);
/* consume two bytes */
llc_consume_data(&llc, &out, 1);
OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN - 3);
OSMO_ASSERT(llc_frame_length(&llc) == 3);
OSMO_ASSERT(llc_chunk_size(&llc) == 2);
/* check that the bytes are as we expected */
OSMO_ASSERT(llc.frame[0] == 1);
OSMO_ASSERT(llc.frame[1] == 2);
OSMO_ASSERT(llc.frame[2] == 4);
/* now fill the frame */
llc.append_frame(data, llc_remaining_space(&llc) - 1);
OSMO_ASSERT(llc_fits_in_current_frame(&llc, 1));
OSMO_ASSERT(!llc_fits_in_current_frame(&llc, 2));
}
}
static void test_rlc()
{
{
struct gprs_rlc_data rlc = { 0, };
memset(rlc.block, 0x23, RLC_MAX_LEN);
uint8_t *p = prepare(&rlc, 20);
OSMO_ASSERT(p == rlc.block);
for (int i = 0; i < 20; ++i)
OSMO_ASSERT(p[i] == 0x2B);
for (int i = 20; i < RLC_MAX_LEN; ++i)
OSMO_ASSERT(p[i] == 0x0);
}
}
static void test_rlc_v_b()
{
{
gprs_rlc_v_b vb;
vb.reset();
for (size_t i = 0; i < RLC_MAX_SNS; ++i)
OSMO_ASSERT(vb.is_invalid(i));
vb.mark_unacked(23);
OSMO_ASSERT(vb.is_unacked(23));
vb.mark_nacked(23);
OSMO_ASSERT(vb.is_nacked(23));
vb.mark_acked(23);
OSMO_ASSERT(vb.is_acked(23));
vb.mark_resend(23);
OSMO_ASSERT(vb.is_resend(23));
vb.mark_invalid(23);
OSMO_ASSERT(vb.is_invalid(23));
}
}
static void test_rlc_v_n()
{
{
gprs_rlc_v_n vn;
vn.reset();
OSMO_ASSERT(!vn.is_received(0x23));
OSMO_ASSERT(vn.state(0x23) == GPRS_RLC_UL_BSN_INVALID);
vn.mark_received(0x23);
OSMO_ASSERT(vn.is_received(0x23));
OSMO_ASSERT(vn.state(0x23) == GPRS_RLC_UL_BSN_RECEIVED);
vn.mark_missing(0x23);
OSMO_ASSERT(!vn.is_received(0x23));
OSMO_ASSERT(vn.state(0x23) == GPRS_RLC_UL_BSN_MISSING);
}
}
static void test_rlc_dl_ul_basic()
{
{
gprs_rlc_dl_window dl_win;
OSMO_ASSERT(dl_win.window_empty());
OSMO_ASSERT(!dl_win.window_stalled());
OSMO_ASSERT(dl_win.distance() == 0);
dl_win.increment_send();
OSMO_ASSERT(!dl_win.window_empty());
OSMO_ASSERT(!dl_win.window_stalled());
OSMO_ASSERT(dl_win.distance() == 1);
for (int i = 1; i < 64; ++i) {
dl_win.increment_send();
OSMO_ASSERT(!dl_win.window_empty());
OSMO_ASSERT(dl_win.distance() == i + 1);
}
OSMO_ASSERT(dl_win.distance() == 64);
OSMO_ASSERT(dl_win.window_stalled());
dl_win.raise(1);
OSMO_ASSERT(dl_win.distance() == 63);
OSMO_ASSERT(!dl_win.window_stalled());
for (int i = 62; i >= 0; --i) {
dl_win.raise(1);
OSMO_ASSERT(dl_win.distance() == i);
}
OSMO_ASSERT(dl_win.distance() == 0);
OSMO_ASSERT(dl_win.window_empty());
dl_win.increment_send();
dl_win.increment_send();
dl_win.increment_send();
dl_win.increment_send();
OSMO_ASSERT(dl_win.distance() == 4);
for (int i = 0; i < 128; ++i) {
dl_win.increment_send();
dl_win.increment_send();
dl_win.raise(2);
OSMO_ASSERT(dl_win.distance() == 4);
}
}
{
gprs_rlc_ul_window ul_win;
int count;
const char *rbb;
char win_rbb[65];
uint8_t bin_rbb[RLC_GPRS_WS/8];
bitvec bits;
win_rbb[64] = '\0';
bits.data = bin_rbb;
bits.data_len = sizeof(bin_rbb);
bits.cur_bit = 0;
ul_win.m_v_n.reset();
OSMO_ASSERT(ul_win.is_in_window(0));
OSMO_ASSERT(ul_win.is_in_window(63));
OSMO_ASSERT(!ul_win.is_in_window(64));
OSMO_ASSERT(!ul_win.m_v_n.is_received(0));
rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII";
OSMO_ASSERT(ul_win.ssn() == 0);
ul_win.update_rbb(win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
bits.cur_bit = 0;
Encoding::encode_rbb(win_rbb, &bits);
printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb)));
Decoding::extract_rbb(&bits, win_rbb);
//printf("win_rbb: %s\n", win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
/* simulate to have received 0, 1 and 5 */
OSMO_ASSERT(ul_win.is_in_window(0));
ul_win.receive_bsn(0);
count = ul_win.raise_v_q();
OSMO_ASSERT(ul_win.m_v_n.is_received(0));
OSMO_ASSERT(ul_win.v_q() == 1);
OSMO_ASSERT(ul_win.v_r() == 1);
OSMO_ASSERT(count == 1);
rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIR";
OSMO_ASSERT(ul_win.ssn() == 1);
ul_win.update_rbb(win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
bits.cur_bit = 0;
Encoding::encode_rbb(win_rbb, &bits);
printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb)));
Decoding::extract_rbb(&bits, win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
OSMO_ASSERT(ul_win.is_in_window(1));
ul_win.receive_bsn(1);
count = ul_win.raise_v_q();
OSMO_ASSERT(ul_win.m_v_n.is_received(0));
OSMO_ASSERT(ul_win.v_q() == 2);
OSMO_ASSERT(ul_win.v_r() == 2);
OSMO_ASSERT(count == 1);
rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIRR";
OSMO_ASSERT(ul_win.ssn() == 2);
ul_win.update_rbb(win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
bits.cur_bit = 0;
Encoding::encode_rbb(win_rbb, &bits);
printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb)));
Decoding::extract_rbb(&bits, win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
OSMO_ASSERT(ul_win.is_in_window(5));
ul_win.receive_bsn(5);
count = ul_win.raise_v_q();
OSMO_ASSERT(ul_win.m_v_n.is_received(0));
OSMO_ASSERT(ul_win.v_q() == 2);
OSMO_ASSERT(ul_win.v_r() == 6);
OSMO_ASSERT(count == 0);
rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIRRIIIR";
OSMO_ASSERT(ul_win.ssn() == 6);
ul_win.update_rbb(win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
bits.cur_bit = 0;
Encoding::encode_rbb(win_rbb, &bits);
printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb)));
Decoding::extract_rbb(&bits, win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
OSMO_ASSERT(ul_win.is_in_window(65));
OSMO_ASSERT(ul_win.is_in_window(2));
OSMO_ASSERT(ul_win.m_v_n.is_received(5));
ul_win.receive_bsn(65);
count = ul_win.raise_v_q();
OSMO_ASSERT(count == 0);
OSMO_ASSERT(ul_win.m_v_n.is_received(5));
OSMO_ASSERT(ul_win.v_q() == 2);
OSMO_ASSERT(ul_win.v_r() == 66);
rbb = "IIIRIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIR";
OSMO_ASSERT(ul_win.ssn() == 66);
ul_win.update_rbb(win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
bits.cur_bit = 0;
Encoding::encode_rbb(win_rbb, &bits);
printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb)));
Decoding::extract_rbb(&bits, win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
OSMO_ASSERT(ul_win.is_in_window(2));
OSMO_ASSERT(!ul_win.is_in_window(66));
ul_win.receive_bsn(2);
count = ul_win.raise_v_q();
OSMO_ASSERT(count == 1);
OSMO_ASSERT(ul_win.v_q() == 3);
OSMO_ASSERT(ul_win.v_r() == 66);
OSMO_ASSERT(ul_win.is_in_window(66));
ul_win.receive_bsn(66);
count = ul_win.raise_v_q();
OSMO_ASSERT(count == 0);
OSMO_ASSERT(ul_win.v_q() == 3);
OSMO_ASSERT(ul_win.v_r() == 67);
for (int i = 3; i <= 67; ++i) {
ul_win.receive_bsn(i);
ul_win.raise_v_q();
}
OSMO_ASSERT(ul_win.v_q() == 68);
OSMO_ASSERT(ul_win.v_r() == 68);
ul_win.receive_bsn(68);
count = ul_win.raise_v_q();
OSMO_ASSERT(ul_win.v_q() == 69);
OSMO_ASSERT(ul_win.v_r() == 69);
OSMO_ASSERT(count == 1);
/* now test the wrapping */
OSMO_ASSERT(ul_win.is_in_window(4));
OSMO_ASSERT(!ul_win.is_in_window(5));
ul_win.receive_bsn(4);
count = ul_win.raise_v_q();
OSMO_ASSERT(count == 0);
/*
* SSN wrap around case
* Should not expect any BSN as nacked.
*/
rbb = "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR";
for (int i = 0; i < 128; ++i) {
ul_win.receive_bsn(i);
ul_win.raise_v_q();
}
ul_win.receive_bsn(0);
ul_win.raise_v_q();
ul_win.receive_bsn(1);
ul_win.raise_v_q();
ul_win.update_rbb(win_rbb);
OSMO_ASSERT_STR_EQ(win_rbb, rbb);
OSMO_ASSERT(ul_win.ssn() == 2);
}
{
uint16_t lost = 0, recv = 0;
char show_rbb[65];
uint8_t bits_data[8];
struct gprs_rlcmac_bts *dummy_bts = bts_alloc(the_pcu, 0);
gprs_rlc_dl_window dl_win;
bitvec bits;
int bsn_begin, bsn_end, num_blocks;
Ack_Nack_Description_t desc;
dl_win.m_v_b.reset();
OSMO_ASSERT(dl_win.window_empty());
OSMO_ASSERT(!dl_win.window_stalled());
OSMO_ASSERT(dl_win.distance() == 0);
dl_win.increment_send();
OSMO_ASSERT(!dl_win.window_empty());
OSMO_ASSERT(!dl_win.window_stalled());
OSMO_ASSERT(dl_win.distance() == 1);
for (int i = 0; i < 35; ++i) {
dl_win.increment_send();
OSMO_ASSERT(!dl_win.window_empty());
OSMO_ASSERT(dl_win.distance() == i + 2);
}
uint8_t rbb_cmp[8] = { 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff };
bits.data = bits_data;
bits.data_len = sizeof(bits_data);
bits.cur_bit = 0;
memcpy(desc.RECEIVED_BLOCK_BITMAP, rbb_cmp,
sizeof(desc.RECEIVED_BLOCK_BITMAP));
desc.FINAL_ACK_INDICATION = 0;
desc.STARTING_SEQUENCE_NUMBER = 35;
num_blocks = Decoding::decode_gprs_acknack_bits(
&desc, &bits,
&bsn_begin, &bsn_end, &dl_win);
Decoding::extract_rbb(&bits, show_rbb);
printf("show_rbb: %s\n", show_rbb);
dl_win.update(dummy_bts, &bits, 0, &lost, &recv);
OSMO_ASSERT(lost == 0);
OSMO_ASSERT(recv == 35);
OSMO_ASSERT(bsn_begin == 0);
OSMO_ASSERT(bsn_end == 35);
OSMO_ASSERT(num_blocks == 35);
dl_win.raise(dl_win.move_window());
for (int i = 0; i < 8; ++i) {
dl_win.increment_send();
OSMO_ASSERT(!dl_win.window_empty());
OSMO_ASSERT(dl_win.distance() == 2 + i);
}
uint8_t rbb_cmp2[8] = { 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0x31 };
bits.data = bits_data;
bits.data_len = sizeof(bits_data);
bits.cur_bit = 0;
memcpy(desc.RECEIVED_BLOCK_BITMAP, rbb_cmp2,
sizeof(desc.RECEIVED_BLOCK_BITMAP));
desc.FINAL_ACK_INDICATION = 0;
desc.STARTING_SEQUENCE_NUMBER = 35 + 8;
num_blocks = Decoding::decode_gprs_acknack_bits(
&desc, &bits,
&bsn_begin, &bsn_end, &dl_win);
Decoding::extract_rbb(&bits, show_rbb);
printf("show_rbb: %s\n", show_rbb);
lost = recv = 0;
dl_win.update(dummy_bts, &bits, 0, &lost, &recv);
OSMO_ASSERT(lost == 5);
OSMO_ASSERT(recv == 3);
OSMO_ASSERT(bitvec_get_bit_pos(&bits, 0) == 0);
OSMO_ASSERT(bitvec_get_bit_pos(&bits, 7) == 1);
OSMO_ASSERT(bsn_begin == 35);
OSMO_ASSERT(bsn_end == 43);
OSMO_ASSERT(num_blocks == 8);
talloc_free(dummy_bts);
}
}
struct crbb_test {
bool has_crbb;
bitvec *crbb;
uint8_t length;
bool color_code;
};
static void extract_egprs_ul_ack_nack(
struct gprs_rlcmac_ul_tbf *tbf,
struct bitvec *dest,
uint16_t *ssn,
struct crbb_test *crbb_test,
struct bitvec **urbb,
bool is_final)
{
uint8_t bytelength;
/* Start of Ack/Nack Description struct */
uint8_t startbit_ack_nack = 0;
bool has_length = false;
uint8_t length = 0;
bool bow = false;
uint8_t urbb_length = 0;
dest->cur_bit = 0;
/* ignore the first 8 bit */
bitvec_get_uint(dest, 8);
/* uplink ack/nack message content */
OSMO_ASSERT(bitvec_get_uint(dest, 6) == 0b001001);
/* ignore page mode*/
bitvec_get_uint(dest, 2);
/* fix 00 */
OSMO_ASSERT(bitvec_get_uint(dest, 2) == 0);
OSMO_ASSERT(bitvec_get_uint(dest, 5) == tbf->tfi());
/* egprs ack/nack */
OSMO_ASSERT(bitvec_get_uint(dest, 1) == 1);
/* fix 00 */
OSMO_ASSERT(bitvec_get_uint(dest, 2) == 0);
/* ignore Channel Coding Command */
bitvec_get_uint(dest, 4);
/* we always allow resegmentation */
OSMO_ASSERT(bitvec_get_uint(dest, 1) == 1);
/* ignore pre emptive transmission */
bitvec_get_uint(dest, 1);
/* ignore PRR retransmission request */
bitvec_get_uint(dest, 1);
/* ignore ARAC retransmission request */
bitvec_get_uint(dest, 1);
if (bitvec_get_uint(dest, 1)) {
OSMO_ASSERT((uint32_t) bitvec_get_uint(dest, 32) == tbf->tlli());
}
/* ignore TBF_EST */
bitvec_get_uint(dest, 1);
/* Timing Advance */
if (bitvec_get_uint(dest, 1)) {
/* Timing Advance Value */
if (bitvec_get_uint(dest, 1))
bitvec_get_uint(dest, 6);
/* Timing Advance Index*/
if (bitvec_get_uint(dest, 1))
bitvec_get_uint(dest, 6);
/* Timing Advance Timeslot Number */
bitvec_get_uint(dest, 3);
}
/* Packet Extended Timing Advance */
if (bitvec_get_uint(dest, 1))
bitvec_get_uint(dest, 2);
/* Power Control Parameters */
if (bitvec_get_uint(dest, 1)) {
/* Alpha */
bitvec_get_uint(dest, 4);
for (int i=0; i<8 ; i++) {
/* Gamma */
if (bitvec_get_uint(dest, 1))
bitvec_get_uint(dest, 5);
}
}
/* Extension Bits */
if (bitvec_get_uint(dest, 1)) {
int length = bitvec_get_uint(dest, 6);
bitvec_get_uint(dest, length);
}
/* Beging of the EGPRS Ack/Nack */
has_length = bitvec_get_uint(dest, 1);
if (has_length) {
length = bitvec_get_uint(dest, 8);
} else {
/* remaining bits is the length */
length = dest->data_len * 8 - dest->cur_bit;
}
startbit_ack_nack = dest->cur_bit;
OSMO_ASSERT(bitvec_get_uint(dest, 1) == is_final);
/* bow Begin Of Window */
bow = bitvec_get_uint(dest, 1);
/* TODO: check if bow is always present in our implementation */
/* eow End Of Window */
/* TODO: eow checking */
bitvec_get_uint(dest, 1);
*ssn = bitvec_get_uint(dest, 11);
if (bow) {
OSMO_ASSERT(*ssn == static_cast<gprs_rlc_ul_window *>(tbf->window())->v_q() + 1);
}
crbb_test->has_crbb = bitvec_get_uint(dest, 1);
if (crbb_test->has_crbb) {
crbb_test->length = bitvec_get_uint(dest, 7);
crbb_test->color_code = bitvec_get_uint(dest, 1);
if (crbb_test->length % 8)
bytelength = crbb_test->length * 8 + 1;
else
bytelength = crbb_test->length * 8;
crbb_test->crbb = bitvec_alloc(bytelength, tall_pcu_ctx);
for (int i=0; i<crbb_test->length; i++)
bitvec_set_bit(crbb_test->crbb, bitvec_get_bit_pos(dest, dest->cur_bit + i));
dest->cur_bit += crbb_test->length;
}
OSMO_ASSERT(dest->cur_bit < dest->data_len * 8);
urbb_length = length - (dest->cur_bit - startbit_ack_nack);
if (urbb_length > 0) {
if (urbb_length % 8)
bytelength = urbb_length / 8 + 1;
else
bytelength = urbb_length / 8;
*urbb = bitvec_alloc(bytelength, tall_pcu_ctx);
for (int i=urbb_length; i>0; i--) {
bitvec_set_bit(*urbb, bitvec_get_bit_pos(dest, dest->cur_bit + i - 1));
}
}
}
static void check_egprs_bitmap(struct gprs_rlcmac_ul_tbf *tbf, uint16_t ssn, struct crbb_test *crbb_test, bitvec *urbb, unsigned int *rbb_size)
{
gprs_rlc_ul_window *win = static_cast<gprs_rlc_ul_window *>(tbf->window());
uint8_t rbb_should[RLC_EGPRS_MAX_WS] = {0};
bitvec rbb_should_bv;
rbb_should_bv.data = rbb_should;
rbb_should_bv.data_len = RLC_EGPRS_MAX_WS;
rbb_should_bv.cur_bit = 0;
/* rbb starting at ssn without mod */
bitvec *rbb_ssn_bv = bitvec_alloc(RLC_EGPRS_MAX_WS, tall_pcu_ctx);
/* even any ssn is allowed, pcu should only use v_q() at least for now */
OSMO_ASSERT(ssn == (win->v_q() + 1));
if (crbb_test->has_crbb) {
OSMO_ASSERT(0 == egprs_compress::decompress_crbb(
crbb_test->length,
crbb_test->color_code,
crbb_test->crbb->data,
rbb_ssn_bv));
}
if (urbb && urbb->cur_bit > 0) {
for (unsigned int i=0; i<urbb->cur_bit; i++) {
bitvec_set_bit(rbb_ssn_bv, bitvec_get_bit_pos(urbb, i));
}
}
/* check our rbb is equal the decompressed */
rbb_should_bv.cur_bit = win->update_egprs_rbb(rbb_should);
bool failed = false;
for (unsigned int i=0; i < rbb_ssn_bv->cur_bit; i++) {
if (bitvec_get_bit_pos(&rbb_should_bv, i) !=
bitvec_get_bit_pos(rbb_ssn_bv, i))
failed = true;
}
if (failed) {
fprintf(stderr, "SSN %d\n", ssn);
for (int i=win->v_q(); i<win->ws(); i++) {
fprintf(stderr, "bsn %d is %s\n", i, win->is_received( i) ? "received" : "MISS");
}
char to_dump[256] = { 0 };
bitvec_to_string_r(&rbb_should_bv, to_dump);
fprintf(stderr, "should: %s\n", to_dump);
memset(to_dump, 0x0, 256);
bitvec_to_string_r(rbb_ssn_bv, to_dump);
fprintf(stderr, "is : %s\n", to_dump);
OSMO_ASSERT(false);
}
if (rbb_size)
*rbb_size = rbb_ssn_bv->cur_bit;
}
static void free_egprs_ul_ack_nack(bitvec **rbb, struct crbb_test *crbb_test)
{
if (*rbb) {
bitvec_free(*rbb);
*rbb = NULL;
}
if (crbb_test->crbb) {
bitvec_free(crbb_test->crbb);
crbb_test->crbb = NULL;
}
}
static void test_egprs_ul_ack_nack()
{
bitvec *dest = bitvec_alloc(23, tall_pcu_ctx);
fprintf(stderr, "############## test_egprs_ul_ack_nack\n");
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
the_pcu->alloc_algorithm = alloc_algorithm_a;
bts->trx[0].pdch[4].enable();
GprsMs *ms = bts_alloc_ms(bts, 1, 1);
struct gprs_rlcmac_ul_tbf *tbf = tbf_alloc_ul_tbf(bts, ms, 0, true);
struct crbb_test crbb_test = {0};
bitvec *rbb = NULL;
unsigned int rbb_size;
uint16_t ssn = 0;
gprs_rlc_ul_window *win = static_cast<gprs_rlc_ul_window *>(tbf->window());
fprintf(stderr, "************** Test with empty window\n");
win->reset_state();
win->set_ws(256);
Encoding::write_packet_uplink_ack(dest, tbf, false, 0);
extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false);
check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size);
free_egprs_ul_ack_nack(&rbb, &crbb_test);
OSMO_ASSERT(rbb_size == 0);
fprintf(stderr, "************** Test with 1 lost packet\n");
win->reset_state();
win->set_ws(256);
win->receive_bsn(1);
Encoding::write_packet_uplink_ack(dest, tbf, false, 0);
extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false);
check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size);
free_egprs_ul_ack_nack(&rbb, &crbb_test);
OSMO_ASSERT(rbb_size == 1);
fprintf(stderr, "************** Test with compressed window\n");
win->reset_state();
win->set_ws(128);
win->receive_bsn(127);
Encoding::write_packet_uplink_ack(dest, tbf, false, 0);
extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false);
check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size);
free_egprs_ul_ack_nack(&rbb, &crbb_test);
fprintf(stderr, "************** Provoke an uncompressed ACK without EOW\n");
win->reset_state();
win->set_ws(384);
for (uint16_t i=1; i<384/2; i++)
win->receive_bsn(i*2);
Encoding::write_packet_uplink_ack(dest, tbf, false, 0);
extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false);
check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size);
free_egprs_ul_ack_nack(&rbb, &crbb_test);
talloc_free(bts);
}
static void check_imm_ass(struct gprs_rlcmac_tbf *tbf, bool dl, enum ph_burst_type bt, const uint8_t *exp, uint8_t len,
const char *kind)
{
uint8_t alpha = 7, gamma = 8, ta = 35, usf = 1, sz = sizeof(DUMMY_VEC) / 2, plen;
bitvec *immediate_assignment = bitvec_alloc(sz, tall_pcu_ctx);
struct msgb *m = msgb_alloc(80, "test");
bool poll = true;
uint16_t ra = 13;
uint32_t ref_fn = 24, fn = 11;
int8_t ta_idx = 0;
/* HACK: tbf can be NULL, so we cannot use tbf->trx here */
struct gprs_rlcmac_trx trx = { };
trx.pdch[5].trx = &trx;
trx.pdch[5].ts_no = 5;
trx.pdch[5].tsc = 1;
trx.arfcn = 877;
bitvec_unhex(immediate_assignment, DUMMY_VEC);
plen = Encoding::write_immediate_assignment(&trx.pdch[5], tbf,
immediate_assignment,
dl, ra, ref_fn, ta, usf,
poll, fn, alpha, gamma, ta_idx, bt);
printf("[%u] %s Immediate Assignment <%s>:\n\t%s\n", plen, dl ? "DL" : "UL", kind,
osmo_hexdump(immediate_assignment->data, sz));
memcpy(msgb_put(m, sz), immediate_assignment->data, sz);
if (!msgb_eq_data_print(m, exp, len))
printf("%s(%s, %s) failed!\n", __func__, dl ? "DL" : "UL", kind);
msgb_free(m);
}
void test_immediate_assign_dl()
{
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
the_pcu->alloc_algorithm = alloc_algorithm_a;
bts->trx[0].pdch[2].enable();
bts->trx[0].pdch[3].enable();
GprsMs *ms = bts_alloc_ms(bts, 1, 0);
struct gprs_rlcmac_tbf *tbf = tbf_alloc_dl_tbf(bts, ms, 0, false);
static uint8_t res[] = { 0x06,
0x3f, /* Immediate Assignment Message Type */
0x30, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */
0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */
/* ETSI TS 44.018 §10.5.2.30 Request Reference */
0x7f, /* RA */
0x03, 0x18, /* T1'-T3 */
0x23, /* TA */
0x00, /* 0-length §10.5.2.21 Mobile Allocation */
/* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */
0xdf, 0xff, 0xff, 0xff, 0xf8, 0x17, 0x47, 0x08, 0x0b, 0x5b, 0x2b, 0x2b, };
check_imm_ass(tbf, true, GSM_L1_BURST_TYPE_ACCESS_2, res, sizeof(res), "ia_rest_downlink");
talloc_free(bts);
}
void test_immediate_assign_ul0m()
{
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
the_pcu->alloc_algorithm = alloc_algorithm_a;
bts->trx[0].pdch[4].enable();
bts->trx[0].pdch[5].enable();
GprsMs *ms = bts_alloc_ms(bts, 1, 0);
struct gprs_rlcmac_tbf *tbf = tbf_alloc_ul_tbf(bts, ms, 0, false);
static uint8_t res[] = { 0x06,
0x3f, /* Immediate Assignment Message Type */
0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */
0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */
/* ETSI TS 44.018 §10.5.2.30 Request Reference */
0x0d, /* RA */
0x03, 0x18, /* T1'-T3 */
0x23, /* TA */
0x00, /* 0-length §10.5.2.21 Mobile Allocation */
/* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */
0xc8, 0x02, 0x1b, 0xa2, 0x0b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, };
check_imm_ass(tbf, false, GSM_L1_BURST_TYPE_ACCESS_0, res, sizeof(res), "ia_rest_uplink(MBA)");
talloc_free(bts);
}
void test_immediate_assign_ul0s()
{
static uint8_t res[] = { 0x06,
0x3f, /* Immediate Assignment Message Type */
0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */
0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */
/* ETSI TS 44.018 §10.5.2.30 Request Reference */
0x0d, /* RA */
0x03, 0x18, /* T1'-T3 */
0x23, /* TA */
0x00, /* 0-length §10.5.2.21 Mobile Allocation */
/* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */
0xc5, 0xd0, 0x80, 0xb5, 0xab, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, };
check_imm_ass(NULL, false, GSM_L1_BURST_TYPE_ACCESS_0, res, sizeof(res), "ia_rest_uplink(SBA)");
}
void test_immediate_assign_ul1s()
{
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
the_pcu->alloc_algorithm = alloc_algorithm_a;
bts->trx[0].pdch[1].enable();
bts->trx[0].pdch[2].enable();
GprsMs *ms = bts_alloc_ms(bts, 1, 1);
struct gprs_rlcmac_tbf *tbf = tbf_alloc_ul_tbf(bts, ms, 0, false);
static uint8_t res[] = { 0x06,
0x3f, /* Immediate Assignment Message Type */
0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */
0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */
/* ETSI TS 44.018 §10.5.2.30 Request Reference */
0x7f, /* RA */
0x03, 0x18, /* T1'-T3 */
0x23, /* TA */
0x00, /* 0-length §10.5.2.21 Mobile Allocation */
/* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */
0x46, 0xa0, 0x08, 0x00, 0x17, 0x44, 0x0b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, };
check_imm_ass(tbf, false, GSM_L1_BURST_TYPE_ACCESS_1, res, sizeof(res), "ia_rest_egprs_uplink(SBA)");
talloc_free(bts);
}
void test_immediate_assign_ul1m()
{
static uint8_t res[] = { 0x06,
0x3f, /* Immediate Assignment Message Type */
0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */
0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */
/* ETSI TS 44.018 §10.5.2.30 Request Reference */
0x7f, /* RA */
0x03, 0x18, /* T1'-T3 */
0x23, /* TA */
0x00, /* 0-length §10.5.2.21 Mobile Allocation */
/* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */
0x46, 0x97, 0x40, 0x0b, 0x58, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, };
check_imm_ass(NULL, false, GSM_L1_BURST_TYPE_ACCESS_1, res, sizeof(res), "ia_rest_egprs_uplink(MBA)");
}
void test_immediate_assign_rej()
{
uint8_t plen;
bitvec *immediate_assignment_rej = bitvec_alloc(22, tall_pcu_ctx);
bitvec_unhex(immediate_assignment_rej, DUMMY_VEC);
plen = Encoding::write_immediate_assignment_reject(
immediate_assignment_rej, 112, 100,
GSM_L1_BURST_TYPE_ACCESS_1, 20);
printf("assignment reject: %s\n",
osmo_hexdump(immediate_assignment_rej->data, 22));
OSMO_ASSERT(plen == 19);
/* RA value */
OSMO_ASSERT(immediate_assignment_rej->data[3] == 0x7f);
/* Extended RA value */
OSMO_ASSERT(immediate_assignment_rej->data[19] == 0xc0);
bitvec_unhex(immediate_assignment_rej, DUMMY_VEC);
plen = Encoding::write_immediate_assignment_reject(
immediate_assignment_rej, 112, 100,
GSM_L1_BURST_TYPE_ACCESS_0, 20);
printf("assignment reject: %s\n",
osmo_hexdump(immediate_assignment_rej->data, 22));
OSMO_ASSERT(plen == 19);
/* RA value */
OSMO_ASSERT(immediate_assignment_rej->data[3] == 0x70);
}
static void test_lsb()
{
uint8_t u = 0;
printf("Testing LBS utility...\n");
do {
uint8_t x = pcu_lsb(u); /* equivalent of (1 << ffs(u)) / 2 */
printf("%2X " OSMO_BIT_SPEC ": {%d} %3d\n",
u, OSMO_BIT_PRINT(u), pcu_bitcount(u), x);
u++;
} while (u);
}
int main(int argc, char **argv)
{
tall_pcu_ctx = talloc_named_const(NULL, 1, "types test context");
if (!tall_pcu_ctx)
abort();
msgb_talloc_ctx_init(tall_pcu_ctx, 0);
osmo_init_logging2(tall_pcu_ctx, &gprs_log_info);
log_set_use_color(osmo_stderr_target, 0);
log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
log_set_print_category(osmo_stderr_target, 0);
log_set_print_category_hex(osmo_stderr_target, 0);
log_set_category_filter(osmo_stderr_target, DTBF, 1, LOGL_INFO);
log_set_category_filter(osmo_stderr_target, DTBFUL, 1, LOGL_INFO);
osmo_fsm_log_addr(false);
the_pcu = gprs_pcu_alloc(tall_pcu_ctx);
printf("Making some basic type testing.\n");
test_llc();
test_rlc();
test_rlc_v_b();
test_rlc_v_n();
test_rlc_dl_ul_basic();
test_immediate_assign_dl();
test_immediate_assign_ul0m();
test_immediate_assign_ul0s();
test_immediate_assign_ul1m();
test_immediate_assign_ul1s();
test_immediate_assign_rej();
test_lsb();
test_egprs_ul_ack_nack();
talloc_free(the_pcu);
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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