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osmo-pcu/tests/tbf/TbfTest.cpp

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/*
* TbfTest.cpp
*
* Copyright (C) 2013 by Holger Hans Peter Freyther
*
* 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_dl.h"
#include "tbf_ul.h"
#include "gprs_ms.h"
#include "gprs_debug.h"
#include "gprs_ms_storage.h"
#include "pcu_utils.h"
#include "gprs_bssgp_pcu.h"
#include "pcu_l1_if.h"
#include "decoding.h"
#include <gprs_rlcmac.h>
extern "C" {
#include "pcu_vty.h"
#include "coding_scheme.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 <osmocom/gprs/protocol/gsm_04_60.h>
#include <osmocom/gsm/l1sap.h>
#include <osmocom/core/fsm.h>
}
#include <errno.h>
#define DUMMY_FN 2654167
void *tall_pcu_ctx;
int16_t spoof_mnc = 0, spoof_mcc = 0;
bool spoof_mnc_3_digits = false;
/* Measurements shared by all unit tests */
static struct pcu_l1_meas meas;
int gprs_gp_send_test_cb(void *ctx, struct msgb *msg)
{
return 0;
}
static gprs_pcu *prepare_pcu(void)
{
struct gprs_pcu *pcu = gprs_pcu_alloc(tall_pcu_ctx);
bssgp_set_bssgp_callback(gprs_gp_send_test_cb, NULL);
osmo_tdef_set(pcu->T_defs, -2030, 0, OSMO_TDEF_S);
osmo_tdef_set(pcu->T_defs, -2031, 0, OSMO_TDEF_S);
return pcu;
}
static int bts_handle_rach(struct gprs_rlcmac_bts *bts, uint16_t ra, uint32_t Fn, int16_t qta)
{
struct rach_ind_params rip = {
.burst_type = GSM_L1_BURST_TYPE_ACCESS_0,
.is_11bit = false,
.ra = ra,
.trx_nr = 0,
.ts_nr = 0,
.rfn = Fn,
.qta = qta,
};
return bts_rcv_rach(bts, &rip);
}
static void check_tbf(gprs_rlcmac_tbf *tbf)
{
OSMO_ASSERT(tbf);
if (tbf->state_is(TBF_ST_WAIT_RELEASE))
OSMO_ASSERT(tbf->timers_pending(T3191) || osmo_timer_pending(&tbf->state_fsm.fi->timer));
if (tbf->state_is(TBF_ST_RELEASING))
OSMO_ASSERT(tbf->timers_pending(T_MAX));
}
static void test_tbf_base()
{
fprintf(stderr, "=== start %s ===\n", __func__);
OSMO_ASSERT(GPRS_RLCMAC_DL_TBF == reverse(GPRS_RLCMAC_UL_TBF));
OSMO_ASSERT(GPRS_RLCMAC_UL_TBF == reverse(GPRS_RLCMAC_DL_TBF));
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_tlli_update()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
GprsMs *ms, *ms_new;
fprintf(stderr, "=== start %s ===\n", __func__);
the_pcu->alloc_algorithm = alloc_algorithm_a;
bts->trx[0].pdch[2].enable();
bts->trx[0].pdch[3].enable();
/*
* Make a uplink and downlink allocation
*/
ms = bts_alloc_ms(bts, 0, 0);
gprs_rlcmac_tbf *dl_tbf = tbf_alloc_dl_tbf(bts,
ms, 0, false);
OSMO_ASSERT(dl_tbf != NULL);
dl_tbf->update_ms(0x2342, GPRS_RLCMAC_DL_TBF);
dl_tbf->set_ta(4);
OSMO_ASSERT(ms_dl_tbf(ms) == dl_tbf);
OSMO_ASSERT(dl_tbf->ms() == ms);
gprs_rlcmac_tbf *ul_tbf = tbf_alloc_ul_tbf(bts,
ms, 0, false);
OSMO_ASSERT(ul_tbf != NULL);
ul_tbf->update_ms(0x2342, GPRS_RLCMAC_UL_TBF);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
OSMO_ASSERT(ul_tbf->ms() == ms);
OSMO_ASSERT(bts_ms_by_tlli(bts, 0x2342, GSM_RESERVED_TMSI) == ms);
/*
* Now check.. that DL changes and that the timing advance
* has changed.
*/
dl_tbf->update_ms(0x4232, GPRS_RLCMAC_DL_TBF);
/* It is still there, since the new TLLI has not been used for UL yet */
ms_new = bts_ms_by_tlli(bts, 0x2342, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms == ms_new);
ms_new = bts_ms_by_tlli(bts, 0x4232, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms == ms_new);
OSMO_ASSERT(ms_dl_tbf(ms) == dl_tbf);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
/* Now use the new TLLI for UL */
ul_tbf->update_ms(0x4232, GPRS_RLCMAC_UL_TBF);
ms_new = bts_ms_by_tlli(bts, 0x2342, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms_new == NULL);
ms_new = bts_ms_by_tlli(bts, 0x4232, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms_new != NULL);
OSMO_ASSERT(ms_ta(ms_new) == 4);
OSMO_ASSERT(ul_tbf->ta() == 4);
OSMO_ASSERT(dl_tbf->ta() == 4);
ul_tbf->set_ta(6);
OSMO_ASSERT(ul_tbf->ta() == 6);
OSMO_ASSERT(dl_tbf->ta() == 6);
fprintf(stderr, "=== end %s ===\n", __func__);
TALLOC_FREE(the_pcu);
}
static uint8_t llc_data[200];
/* override, requires '-Wl,--wrap=pcu_sock_send' */
int __real_pcu_sock_send(struct msgb *msg);
extern "C" int __wrap_pcu_sock_send(struct msgb *msg)
{
return 0;
}
static void setup_bts(struct gprs_rlcmac_bts *bts, uint8_t ts_no, uint8_t cs = 1)
{
gprs_rlcmac_trx *trx;
the_pcu->alloc_algorithm = alloc_algorithm_a;
bts->initial_cs_dl = cs;
bts->initial_cs_ul = cs;
trx = &bts->trx[0];
trx->pdch[ts_no].enable();
bts_set_current_frame_number(bts, DUMMY_FN);
}
static gprs_rlcmac_dl_tbf *create_dl_tbf(struct gprs_rlcmac_bts *bts, uint8_t ms_class,
uint8_t egprs_ms_class, uint8_t *trx_no_)
{
int tfi;
uint8_t trx_no;
GprsMs *ms;
gprs_rlcmac_dl_tbf *dl_tbf;
ms = bts_alloc_ms(bts, ms_class, egprs_ms_class);
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_DL_TBF, &trx_no, -1);
OSMO_ASSERT(tfi >= 0);
dl_tbf = tbf_alloc_dl_tbf(bts, ms, trx_no, true);
OSMO_ASSERT(dl_tbf);
dl_tbf->set_ta(0);
check_tbf(dl_tbf);
/* "Establish" the DL TBF */
osmo_fsm_inst_dispatch(dl_tbf->dl_ass_fsm.fi, TBF_DL_ASS_EV_SCHED_ASS, NULL);
osmo_fsm_inst_dispatch(dl_tbf->state_fsm.fi, TBF_EV_ASSIGN_ADD_CCCH, NULL);
osmo_fsm_inst_dispatch(dl_tbf->state_fsm.fi, TBF_EV_ASSIGN_ACK_PACCH, NULL);
check_tbf(dl_tbf);
*trx_no_ = trx_no;
return dl_tbf;
}
static unsigned fn_add_blocks(unsigned fn, unsigned blocks)
{
unsigned bn = fn2bn(fn) + blocks;
fn = fn - (fn % 52);
fn += bn * 4 + bn / 3;
return fn % GSM_MAX_FN;
}
static void request_dl_rlc_block(struct gprs_rlcmac_bts *bts,
uint8_t trx_no, uint8_t ts_no,
uint32_t *fn, uint8_t *block_nr = NULL)
{
uint8_t bn = fn2bn(*fn);
gprs_rlcmac_rcv_rts_block(bts, trx_no, ts_no, *fn, bn);
*fn = fn_add_blocks(*fn, 1);
bn += 1;
if (block_nr)
*block_nr = bn;
}
static void request_dl_rlc_block(struct gprs_rlcmac_tbf *tbf,
uint32_t *fn, uint8_t *block_nr = NULL)
{
request_dl_rlc_block(tbf->bts, tbf->trx->trx_no,
tbf->control_ts, fn, block_nr);
}
enum test_tbf_final_ack_mode {
TEST_MODE_STANDARD,
TEST_MODE_REVERSE_FREE
};
/* Receive an ACK */
static void _rcv_ack(bool fin, gprs_rlcmac_dl_tbf *tbf, uint8_t *rbb)
{
gprs_rlc_dl_window *w = static_cast<gprs_rlc_dl_window *>(tbf->window());
uint8_t bits_data[RLC_GPRS_WS/8];
bitvec bits;
Ack_Nack_Description_t ack_nack;
int bsn_begin, bsn_end;
uint8_t ssn = w->v_s();
bits.data = bits_data;
bits.data_len = sizeof(bits_data);
bits.cur_bit = 0;
ack_nack.FINAL_ACK_INDICATION = fin;
ack_nack.STARTING_SEQUENCE_NUMBER = ssn;
memcpy(ack_nack.RECEIVED_BLOCK_BITMAP, rbb, RLC_GPRS_WS/8);
Decoding::decode_gprs_acknack_bits(
&ack_nack, &bits,
&bsn_begin, &bsn_end, w);
tbf->rcvd_dl_ack(fin, bsn_begin, &bits);
if (!fin)
OSMO_ASSERT(w->window_empty());
}
static void test_tbf_final_ack(enum test_tbf_final_ack_mode test_mode)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
unsigned i;
uint8_t ms_class = 45;
uint32_t fn;
uint8_t block_nr;
uint8_t trx_no;
GprsMs *ms;
uint32_t tlli = 0xffeeddcc;
uint8_t rbb[64/8];
fprintf(stderr, "=== start %s ===\n", __func__);
gprs_rlcmac_dl_tbf *dl_tbf;
gprs_rlcmac_tbf *new_tbf;
setup_bts(bts, ts_no);
dl_tbf = create_dl_tbf(bts, ms_class, 0, &trx_no);
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
ms = dl_tbf->ms();
for (i = 0; i < sizeof(llc_data); i++)
llc_data[i] = i%256;
/* Schedule two LLC frames */
dl_tbf->append_data(1000, llc_data, sizeof(llc_data));
dl_tbf->append_data(1000, llc_data, sizeof(llc_data));
/* Send only a few RLC/MAC blocks */
fn = 0;
do {
/* Request to send one block */
request_dl_rlc_block(dl_tbf, &fn, &block_nr);
} while (block_nr < 3);
OSMO_ASSERT(dl_tbf->have_data());
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Queue a final ACK */
memset(rbb, 0, sizeof(rbb));
/* Receive a final ACK */
_rcv_ack(true, dl_tbf, rbb);
/* Clean up and ensure tbfs are in the correct state */
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_WAIT_RELEASE));
new_tbf = ms_dl_tbf(ms);
check_tbf(new_tbf);
OSMO_ASSERT(new_tbf != dl_tbf);
OSMO_ASSERT(new_tbf->tfi() == 1);
check_tbf(dl_tbf);
if (test_mode == TEST_MODE_REVERSE_FREE) {
ms_ref(ms);
tbf_free(new_tbf);
OSMO_ASSERT(ms_dl_tbf(ms) == NULL);
check_tbf(dl_tbf);
tbf_free(dl_tbf);
ms_unref(ms);
} else {
ms_ref(ms);
tbf_free(dl_tbf);
OSMO_ASSERT(ms_dl_tbf(ms) == new_tbf);
check_tbf(new_tbf);
tbf_free(new_tbf);
OSMO_ASSERT(ms_dl_tbf(ms) == NULL);
ms_unref(ms);
}
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_delayed_release()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
unsigned i;
uint8_t ms_class = 45;
uint32_t fn = 0;
uint8_t trx_no;
uint32_t tlli = 0xffeeddcc;
unsigned long dl_tbf_idle_msec;
uint8_t rbb[64/8];
gprs_rlcmac_dl_tbf *dl_tbf;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no);
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2031, 200, OSMO_TDEF_MS) == 0);
dl_tbf = create_dl_tbf(bts, ms_class, 0, &trx_no);
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
for (i = 0; i < sizeof(llc_data); i++)
llc_data[i] = i%256;
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Schedule two LLC frames */
dl_tbf->append_data(1000, llc_data, sizeof(llc_data));
dl_tbf->append_data(1000, llc_data, sizeof(llc_data));
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Drain the queue */
while (dl_tbf->have_data())
/* Request to send one RLC/MAC block */
request_dl_rlc_block(dl_tbf, &fn);
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* ACK all blocks */
memset(rbb, 0xff, sizeof(rbb));
_rcv_ack(false, dl_tbf, rbb); /* Receive an ACK */
/* Force sending of a single block containing an LLC dummy command */
request_dl_rlc_block(dl_tbf, &fn);
_rcv_ack(false, dl_tbf, rbb); /* Receive an ACK */
/* Timeout (make sure fn % 52 remains valid) */
dl_tbf_idle_msec = osmo_tdef_get(the_pcu->T_defs, -2031, OSMO_TDEF_MS, -1);
fn += 52 * ((msecs_to_frames(dl_tbf_idle_msec + 100) + 51)/ 52);
request_dl_rlc_block(dl_tbf, &fn);
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FINISHED));
_rcv_ack(true, dl_tbf, rbb); /* Receive a final ACK */
/* Clean up and ensure tbfs are in the correct state */
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_WAIT_RELEASE));
check_tbf(dl_tbf);
tbf_free(dl_tbf);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_imsi()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
uint8_t ms_class = 45;
uint8_t trx_no;
GprsMs *ms1, *ms2;
gprs_rlcmac_dl_tbf *dl_tbf[2];
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no);
dl_tbf[0] = create_dl_tbf(bts, ms_class, 0, &trx_no);
dl_tbf[1] = create_dl_tbf(bts, ms_class, 0, &trx_no);
dl_tbf[0]->update_ms(0xf1000001, GPRS_RLCMAC_DL_TBF);
dl_tbf[1]->update_ms(0xf1000002, GPRS_RLCMAC_DL_TBF);
ms_set_imsi(dl_tbf[0]->ms(), "001001000000001");
ms1 = bts_ms_store(bts)->get_ms(0, 0, "001001000000001");
OSMO_ASSERT(ms1 != NULL);
ms2 = bts_ms_store(bts)->get_ms(0xf1000001);
OSMO_ASSERT(ms2 != NULL);
OSMO_ASSERT(strcmp(ms_imsi(ms2), "001001000000001") == 0);
OSMO_ASSERT(ms1 == ms2);
/* change the IMSI on TBF 0 */
ms_set_imsi(dl_tbf[0]->ms(), "001001000000002");
ms1 = bts_ms_store(bts)->get_ms(0, 0, "001001000000001");
OSMO_ASSERT(ms1 == NULL);
ms1 = bts_ms_store(bts)->get_ms(0, 0, "001001000000002");
OSMO_ASSERT(ms1 != NULL);
OSMO_ASSERT(strcmp(ms_imsi(ms2), "001001000000002") == 0);
OSMO_ASSERT(ms1 == ms2);
/* use the same IMSI on TBF 1 */
{
ms_ref(ms2);
ms_set_imsi(dl_tbf[1]->ms(), "001001000000002");
ms1 = bts_ms_store(bts)->get_ms(0, 0, "001001000000002");
OSMO_ASSERT(ms1 != NULL);
OSMO_ASSERT(ms1 != ms2);
OSMO_ASSERT(strcmp(ms_imsi(ms1), "001001000000002") == 0);
OSMO_ASSERT(strcmp(ms_imsi(ms2), "") == 0);
ms_unref(ms2);
}
ms2 = bts_ms_store(bts)->get_ms(0xf1000001);
OSMO_ASSERT(ms2 == NULL);
tbf_free(dl_tbf[1]);
ms1 = bts_ms_store(bts)->get_ms(0, 0, "001001000000002");
OSMO_ASSERT(ms1 == NULL);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_exhaustion()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
unsigned i;
uint8_t ts_no = 4;
uint8_t ms_class = 45;
int rc = 0;
uint8_t buf[256] = {0};
fprintf(stderr, "=== start %s ===\n", __func__);
bts->pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, gprs_ns_prim_cb, NULL);
if (!bts->pcu->nsi) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
abort();
}
setup_bts(bts, ts_no);
gprs_bssgp_init(bts, 1234, 1234, 1, 1, false, 0, 0, 0);
for (i = 0; i < 1024; i++) {
uint32_t tlli = 0xc0000000 + i;
char imsi[16] = {0};
unsigned delay_csec = 1000;
snprintf(imsi, sizeof(imsi), "001001%09d", i);
rc = dl_tbf_handle(bts, tlli, 0, imsi, ms_class, 0,
delay_csec, buf, sizeof(buf));
if (rc < 0)
break;
}
OSMO_ASSERT(rc == -EBUSY);
fprintf(stderr, "=== end %s ===\n", __func__);
gprs_bssgp_destroy(bts);
TALLOC_FREE(the_pcu);
}
static void test_tbf_dl_llc_loss()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
uint8_t ms_class = 45;
int rc = 0;
uint32_t tlli = 0xc0123456;
const char *imsi = "001001000123456";
unsigned delay_csec = 1000;
GprsMs *ms;
uint8_t buf[19];
bts->pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, gprs_ns_prim_cb, NULL);
if (!bts->pcu->nsi) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
abort();
}
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no);
/* keep the MS object 10 seconds */
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2030, 10, OSMO_TDEF_S) == 0);
gprs_bssgp_init(bts, 2234, 2234, 1, 1, false, 0, 0, 0);
/* Handle LLC frame 1 */
memset(buf, 1, sizeof(buf));
rc = dl_tbf_handle(bts, tlli, 0, imsi, ms_class, 0,
delay_csec, buf, sizeof(buf));
OSMO_ASSERT(rc >= 0);
ms = bts_ms_store(bts)->get_ms(0, 0, imsi);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_dl_tbf(ms) != NULL);
ms_dl_tbf(ms)->set_ta(0);
/* Handle LLC frame 2 */
memset(buf, 2, sizeof(buf));
rc = dl_tbf_handle(bts, tlli, 0, imsi, ms_class, 0,
delay_csec, buf, sizeof(buf));
OSMO_ASSERT(rc >= 0);
/* TBF establishment fails (timeout) */
tbf_free(ms_dl_tbf(ms));
/* Handle LLC frame 3 */
memset(buf, 3, sizeof(buf));
rc = dl_tbf_handle(bts, tlli, 0, imsi, ms_class, 0,
delay_csec, buf, sizeof(buf));
OSMO_ASSERT(rc >= 0);
OSMO_ASSERT(ms_dl_tbf(ms) != NULL);
/* Here PCU would answer with data_cnf and trigger
* bts_rcv_imm_ass_cnf(), which would trigger TBF_EV_ASSIGN_PCUIF_CNF.
* That in turn would set up timer X2002. Finally, X2002 timeout
* moves it to FLOW state. We set X2002 timeout to 0 here to get
* immediate trigger through osmo_select_main() */
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2002, 0, OSMO_TDEF_MS) == 0);
osmo_fsm_inst_dispatch(ms_dl_tbf(ms)->state_fsm.fi, TBF_EV_ASSIGN_PCUIF_CNF, NULL);
osmo_select_main(0);
OSMO_ASSERT(ms_dl_tbf(ms)->state_is(TBF_ST_FLOW));
/* Get first BSN */
struct msgb *msg;
int fn = 0;
uint8_t expected_data = 1;
static uint8_t exp[][GSM_MACBLOCK_LEN] = {
{ 0x07, 0x00, 0x00, 0x4d, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
{ 0x07, 0x00, 0x02, 0x4d, 0x02, 0x02, 0x02,
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02 },
{ 0x07, 0x01, 0x04, 0x4d, 0x03, 0x03, 0x03,
0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03 },
};
while (ms_dl_tbf(ms)->have_data()) {
msg = ms_dl_tbf(ms)->create_dl_acked_block(fn += 4, 7);
fprintf(stderr, "MSG = %s\n", msgb_hexdump(msg));
if (!msgb_eq_data_print(msg, exp[expected_data - 1], GSM_MACBLOCK_LEN))
fprintf(stderr, "%s failed at %u\n", __func__, expected_data);
expected_data += 1;
}
OSMO_ASSERT(expected_data-1 == 3);
fprintf(stderr, "=== end %s ===\n", __func__);
gprs_bssgp_destroy(bts);
TALLOC_FREE(the_pcu);
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf_single_phase(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta)
{
GprsMs *ms;
int tfi = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
uint8_t trx_no = 0;
struct gprs_rlcmac_pdch *pdch;
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_UL_TBF, &trx_no, -1);
bts_handle_rach(bts, 0x03, *fn, qta);
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
OSMO_ASSERT(ul_tbf != NULL);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
uint8_t data_msg[23] = {
0x00, /* GPRS_RLCMAC_DATA_BLOCK << 6 */
uint8_t(1 | (tfi << 2)),
uint8_t(1), /* BSN:7, E:1 */
uint8_t(tlli >> 24), uint8_t(tlli >> 16),
uint8_t(tlli >> 8), uint8_t(tlli), /* TLLI */
};
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data_msg[0], sizeof(data_msg), *fn, &meas);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
return ul_tbf;
}
static void send_ul_mac_block_buf(struct gprs_rlcmac_bts *bts, struct gprs_rlcmac_pdch *pdch,
unsigned fn, uint8_t *buf, int num_bytes)
{
bts_set_current_block_frame_number(bts, fn);
pdch->rcv_block(buf, num_bytes, fn, &meas);
pdch_ulc_expire_fn(pdch->ulc, fn);
}
static void send_ul_mac_block(struct gprs_rlcmac_bts *bts, unsigned trx_no, unsigned ts_no,
RlcMacUplink_t *ulreq, unsigned fn)
{
bitvec *rlc_block;
uint8_t buf[64];
int num_bytes;
struct gprs_rlcmac_pdch *pdch;
rlc_block = bitvec_alloc(23, tall_pcu_ctx);
OSMO_ASSERT(encode_gsm_rlcmac_uplink(rlc_block, ulreq) == 0);
num_bytes = bitvec_pack(rlc_block, &buf[0]);
OSMO_ASSERT(size_t(num_bytes) < sizeof(buf));
bitvec_free(rlc_block);
pdch = &bts->trx[trx_no].pdch[ts_no];
send_ul_mac_block_buf(bts, pdch, fn, &buf[0], num_bytes);
}
static uint32_t get_poll_fn(struct gprs_rlcmac_tbf *tbf, uint8_t poll_ts)
{
struct gprs_rlcmac_pdch *pdch = &tbf->trx->pdch[poll_ts];
struct pdch_ulc *ulc = pdch->ulc;
struct rb_node *node;
struct pdch_ulc_node *item;
for (node = rb_first(&ulc->tree_root); node; node = rb_next(node)) {
item = container_of(node, struct pdch_ulc_node, node);
if (item->type == PDCH_ULC_NODE_TBF_POLL && item->tbf_poll.poll_tbf == tbf)
return item->fn;
}
OSMO_ASSERT(0);
}
static void send_control_ack(gprs_rlcmac_tbf *tbf)
{
RlcMacUplink_t ulreq = {0};
ulreq.u.MESSAGE_TYPE = MT_PACKET_CONTROL_ACK;
Packet_Control_Acknowledgement_t *ctrl_ack =
&ulreq.u.Packet_Control_Acknowledgement;
ctrl_ack->PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ctrl_ack->TLLI = tbf->tlli();
send_ul_mac_block(tbf->bts, tbf->trx->trx_no, tbf->control_ts,
&ulreq, get_poll_fn(tbf, tbf->control_ts));
}
static void send_empty_block(gprs_rlcmac_tbf *tbf, unsigned ts_no, unsigned fn)
{
struct gprs_rlcmac_pdch *pdch;
pdch = &tbf->bts->trx[tbf->trx->trx_no].pdch[ts_no];
send_ul_mac_block_buf(tbf->bts, pdch, fn, NULL, 0);
}
static gprs_rlcmac_ul_tbf *puan_urbb_len_issue(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class)
{
GprsMs *ms;
uint32_t rach_fn = *fn - 51;
uint32_t sba_fn = *fn + 52;
uint8_t trx_no = 0;
int tfi = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_pdch *pdch;
RlcMacUplink_t ulreq = {0};
struct gprs_rlc_ul_header_egprs_3 *egprs3 = NULL;
/* needed to set last_rts_fn in the PDCH object */
request_dl_rlc_block(bts, trx_no, ts_no, fn);
/*
* simulate RACH, this sends an Immediate
* Assignment Uplink on the AGCH
*/
bts_handle_rach(bts, 0x73, rach_fn, qta);
/* get next free TFI */
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_UL_TBF, &trx_no, -1);
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
ulreq.u.Packet_Resource_Request.PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ulreq.u.Packet_Resource_Request.ID.UnionType = 1; /* != 0 */
ulreq.u.Packet_Resource_Request.ID.u.TLLI = tlli;
ulreq.u.Packet_Resource_Request.Exist_MS_Radio_Access_capability2 = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
Count_MS_RA_capability_value = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Exist_Multislot_capability = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
Exist_GPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Multislot_capability.Exist_EGPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Multislot_capability.EGPRS_multislot_class = ms_class;
}
send_ul_mac_block(bts, trx_no, ts_no, &ulreq, sba_fn);
/* check the TBF */
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
OSMO_ASSERT(ul_tbf);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
/* send packet uplink assignment */
*fn = sba_fn;
request_dl_rlc_block(ul_tbf, fn);
/* send real acknowledgement */
send_control_ack(ul_tbf);
check_tbf(ul_tbf);
/* send fake data */
uint8_t data_msg[42] = {
0xf << 2, /* GPRS_RLCMAC_DATA_BLOCK << 6, CV = 15 */
(uint8_t)(tfi << 1),
1, /* BSN:7, E:1 */
};
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data_msg[0], 23, *fn, &meas);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
/*
* TS 44.060, B.8.1
* first seg received first, later second seg
*/
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 0;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 1;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 0;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_SCHED_ACK, NULL);
struct msgb *msg1 = tbf_ul_ack_create_rlcmac_msg(ul_tbf, *fn, ts_no);
static uint8_t exp1[] = { 0x40, 0x24, 0x01, 0x0b, 0x3e, 0x24, 0x46, 0x68, 0x9c, 0x70, 0x87, 0xb0,
0x06, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b
};
if (!msgb_eq_data_print(msg1, exp1, GSM_MACBLOCK_LEN)) {
fprintf(stderr, "%s test failed on 1st segment!\n", __func__);
return NULL;
}
egprs3->si = 0;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 4;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_SCHED_ACK, NULL);
msg1 = tbf_ul_ack_create_rlcmac_msg(ul_tbf, *fn, ts_no);
static uint8_t exp2[] = { 0x40, 0x24, 0x01, 0x0b, 0x3e, 0x24, 0x46, 0x68, 0x9c, 0x70, 0x88, 0xb0,
0x06, 0x8b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b
};
if (!msgb_eq_data_print(msg1, exp2, GSM_MACBLOCK_LEN)) {
fprintf(stderr, "%s test failed on 2nd segment!\n", __func__);
return NULL;
}
return ul_tbf;
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf_two_phase_spb(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class)
{
GprsMs *ms;
uint32_t rach_fn = *fn - 51;
uint32_t sba_fn = *fn + 52;
uint8_t trx_no = 0;
int tfi = 0, i = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_pdch *pdch;
RlcMacUplink_t ulreq = {0};
struct gprs_rlc_ul_header_egprs_3 *egprs3 = NULL;
/* needed to set last_rts_fn in the PDCH object */
request_dl_rlc_block(bts, trx_no, ts_no, fn);
/*
* simulate RACH, this sends an Immediate
* Assignment Uplink on the AGCH
*/
bts_handle_rach(bts, 0x73, rach_fn, qta);
/* get next free TFI */
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_UL_TBF, &trx_no, -1);
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
ulreq.u.Packet_Resource_Request.PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ulreq.u.Packet_Resource_Request.ID.UnionType = 1; /* != 0 */
ulreq.u.Packet_Resource_Request.ID.u.TLLI = tlli;
ulreq.u.Packet_Resource_Request.Exist_MS_Radio_Access_capability2 = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
Count_MS_RA_capability_value = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Exist_Multislot_capability = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
Exist_GPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Multislot_capability.Exist_EGPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Multislot_capability.EGPRS_multislot_class = ms_class;
}
send_ul_mac_block(bts, trx_no, ts_no, &ulreq, sba_fn);
/* check the TBF */
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
OSMO_ASSERT(ul_tbf != NULL);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
/* send packet uplink assignment */
*fn = sba_fn;
request_dl_rlc_block(ul_tbf, fn);
/* send real acknowledgement */
send_control_ack(ul_tbf);
check_tbf(ul_tbf);
/* send fake data */
uint8_t data_msg[42] = {
0x00 | 0xf << 2, /* GPRS_RLCMAC_DATA_BLOCK << 6, CV = 15 */
uint8_t(0 | (tfi << 1)),
uint8_t(1), /* BSN:7, E:1 */
};
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data_msg[0], 23, *fn, &meas);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
/*
* TS 44.060, B.8.1
* first seg received first, later second seg
*/
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 1;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 2;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
struct gprs_rlc_data *block = ul_tbf->m_rlc.block(1);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_FIRST_SEG_RXD);
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 1;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 3;
pdch->rcv_block(data_msg, 42, *fn, &meas);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_DEFAULT);
OSMO_ASSERT(block->cs_last ==
MCS6);
/* Assembled MCS is MCS6. so the size is 74 */
OSMO_ASSERT(block->len == 74);
/*
* TS 44.060, B.8.1
* second seg first, later first seg
*/
memset(data_msg, 0, sizeof(data_msg));
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 2;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 3;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(2);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_SECOND_SEG_RXD);
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 2;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 2;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_DEFAULT);
OSMO_ASSERT(block->cs_last ==
MCS6);
/* Assembled MCS is MCS6. so the size is 74 */
OSMO_ASSERT(block->len == 74);
/*
* TS 44.060, B.8.1
* Error scenario with spb as 1
*/
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 3;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 1;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(3);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_DEFAULT);
/*
* TS 44.060, B.8.1
* comparison of rlc_data for multiple scenarios
* Receive First, the second(BSN 3)
* Receive First, First then Second(BSN 4)
* Receive Second then First(BSN 5)
* after above 3 scenarios are triggered,
* rlc_data of all 3 BSN are compared
*/
/* Initialize the data_msg */
for (i = 0; i < 42; i++)
data_msg[i] = i;
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 3;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 2;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(3);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_FIRST_SEG_RXD);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 3;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 3;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(3);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_DEFAULT);
/* Assembled MCS is MCS6. so the size is 74 */
OSMO_ASSERT(block->len == 74);
OSMO_ASSERT(block->cs_last ==
MCS6);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 4;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 2;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(4);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_FIRST_SEG_RXD);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 4;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 2;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(4);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_FIRST_SEG_RXD);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 4;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 3;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(4);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_DEFAULT);
OSMO_ASSERT(block->cs_last ==
MCS6);
/* Assembled MCS is MCS6. so the size is 74 */
OSMO_ASSERT(block->len == 74);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 5;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 3;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(5);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_SECOND_SEG_RXD);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 1;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 5;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 2;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 42, *fn, &meas);
block = ul_tbf->m_rlc.block(5);
/* check the status of the block */
OSMO_ASSERT(block->spb_status.block_status_ul ==
EGPRS_RESEG_DEFAULT);
OSMO_ASSERT(block->cs_last ==
MCS6);
/* Assembled MCS is MCS6. so the size is 74 */
OSMO_ASSERT(block->len == 74);
OSMO_ASSERT(ul_tbf->m_rlc.block(5)->len ==
ul_tbf->m_rlc.block(4)->len);
OSMO_ASSERT(ul_tbf->m_rlc.block(5)->len ==
ul_tbf->m_rlc.block(3)->len);
/* Compare the spb status of each BSNs(3,4,5). should be same */
OSMO_ASSERT(
ul_tbf->m_rlc.block(5)->spb_status.block_status_ul ==
ul_tbf->m_rlc.block(4)->spb_status.block_status_ul);
OSMO_ASSERT(
ul_tbf->m_rlc.block(5)->spb_status.block_status_ul ==
ul_tbf->m_rlc.block(3)->spb_status.block_status_ul);
/* Compare the Assembled MCS of each BSNs(3,4,5). should be same */
OSMO_ASSERT(ul_tbf->m_rlc.block(5)->cs_last ==
ul_tbf->m_rlc.block(4)->cs_last);
OSMO_ASSERT(ul_tbf->m_rlc.block(5)->cs_last ==
ul_tbf->m_rlc.block(3)->cs_last);
/* Compare the data of each BSNs(3,4,5). should be same */
OSMO_ASSERT(
!memcmp(ul_tbf->m_rlc.block(5)->block,
ul_tbf->m_rlc.block(4)->block, ul_tbf->m_rlc.block(5)->len
));
OSMO_ASSERT(
!memcmp(ul_tbf->m_rlc.block(5)->block,
ul_tbf->m_rlc.block(3)->block, ul_tbf->m_rlc.block(5)->len
));
return ul_tbf;
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class)
{
uint32_t rach_fn = *fn - 51;
uint32_t sba_fn = *fn + 52;
uint8_t trx_no = 0;
int tfi = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
RlcMacUplink_t ulreq = {0};
/* needed to set last_rts_fn in the PDCH object */
request_dl_rlc_block(bts, trx_no, ts_no, fn);
/*
* simulate RACH, this sends an Immediate
* Assignment Uplink on the AGCH
*/
bts_handle_rach(bts, 0x73, rach_fn, qta);
/* get next free TFI */
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_UL_TBF, &trx_no, -1);
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
ulreq.u.Packet_Resource_Request.PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ulreq.u.Packet_Resource_Request.ID.UnionType = 1; /* != 0 */
ulreq.u.Packet_Resource_Request.ID.u.TLLI = tlli;
ulreq.u.Packet_Resource_Request.Exist_MS_Radio_Access_capability2 = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
Count_MS_RA_capability_value = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Exist_Multislot_capability = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
Exist_GPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Multislot_capability.Exist_EGPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.
Multislot_capability.EGPRS_multislot_class = ms_class;
}
send_ul_mac_block(bts, trx_no, ts_no, &ulreq, sba_fn);
/* check the TBF */
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
/* send packet uplink assignment */
*fn = sba_fn;
request_dl_rlc_block(ul_tbf, fn);
/* send real acknowledgement */
send_control_ack(ul_tbf);
check_tbf(ul_tbf);
return ul_tbf;
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf_two_phase_puan_URBB_no_length(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class, gprs_rlcmac_ul_tbf *ul_tbf)
{
OSMO_ASSERT(ul_tbf);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
GprsMs *ms;
uint8_t trx_no = 0;
int tfi = 0;
struct gprs_rlcmac_pdch *pdch;
/* send fake data with cv=0*/
struct gprs_rlc_ul_header_egprs_3 *hdr3 = NULL;
uint8_t data[49] = {0};
hdr3 = (struct gprs_rlc_ul_header_egprs_3 *)data;
/*header_construction */
memset(data, 0x2b, sizeof(data));
/* Message with CRBB */
for (int i = 0 ; i < 80; i++) {
hdr3->r = 0;
hdr3->si = 0;
hdr3->cv = 10;
hdr3->tfi_hi = (tfi >> 3) & 0x3;
hdr3->tfi_lo = tfi & 0x7;
hdr3->bsn1_hi = ((i * 2)&0x1f);
hdr3->bsn1_lo = ((i * 2)/32);
hdr3->cps_hi = 0;
hdr3->cps_lo = 0;
hdr3->spb = 0;
hdr3->rsb = 0;
hdr3->pi = 0;
hdr3->spare = 0;
hdr3->dummy = 1;
data[4] = 0x0;
data[5] = 0x0;
data[6] = 0x2b;
data[7] = 0x2b;
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data[0], sizeof(data), *fn, &meas);
}
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_SCHED_ACK, NULL);
tbf_ul_ack_create_rlcmac_msg(ul_tbf, *fn, ts_no);
memset(data, 0x2b, sizeof(data));
hdr3 = (struct gprs_rlc_ul_header_egprs_3 *)data;
hdr3->r = 0;
hdr3->si = 0;
hdr3->cv = 0;
hdr3->tfi_hi = (tfi >> 3) & 0x3;
hdr3->tfi_lo = tfi & 0x7;
hdr3->bsn1_hi = 0;
hdr3->bsn1_lo = 2;
hdr3->cps_hi = 0;
hdr3->cps_lo = 0;
hdr3->spb = 0;
hdr3->rsb = 0;
hdr3->pi = 0;
hdr3->spare = 0;
hdr3->dummy = 1;
data[4] = 0x0;
data[5] = 0x2b;
data[6] = 0x2b;
data[7] = 0x2b;
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data[0], sizeof(data), *fn, &meas);
request_dl_rlc_block(ul_tbf, fn);
check_tbf(ul_tbf);
OSMO_ASSERT(tbf_ul_ack_fi(ul_tbf)->state == TBF_UL_ACK_ST_NONE);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
return ul_tbf;
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf_two_phase_puan_URBB_with_length(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class, gprs_rlcmac_ul_tbf *ul_tbf)
{
OSMO_ASSERT(ul_tbf);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
GprsMs *ms;
uint8_t trx_no = 0;
int tfi = 0;
struct gprs_rlcmac_pdch *pdch;
check_tbf(ul_tbf);
/* send fake data with cv=0*/
struct gprs_rlc_ul_header_egprs_3 *hdr3 = NULL;
uint8_t data[49] = {0};
hdr3 = (struct gprs_rlc_ul_header_egprs_3 *)data;
/*header_construction */
memset(data, 0x2b, sizeof(data));
/* Message with URBB & URBB length */
for (int i = 0 ; i < 20; i++) {
hdr3->r = 0;
hdr3->si = 0;
hdr3->cv = 10;
hdr3->tfi_hi = (tfi >> 3) & 0x3;
hdr3->tfi_lo = tfi & 0x7;
hdr3->bsn1_hi = ((i * 2)&0x1f);
hdr3->bsn1_lo = ((i * 2)/32);
hdr3->cps_hi = 0;
hdr3->cps_lo = 0;
hdr3->spb = 0;
hdr3->rsb = 0;
hdr3->pi = 0;
hdr3->spare = 0;
hdr3->dummy = 1;
data[4] = 0x0;
data[5] = 0x0;
data[6] = 0x2b;
data[7] = 0x2b;
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data[0], sizeof(data), *fn, &meas);
}
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_SCHED_ACK, NULL);
tbf_ul_ack_create_rlcmac_msg(ul_tbf, *fn, ts_no);
memset(data, 0x2b, sizeof(data));
hdr3 = (struct gprs_rlc_ul_header_egprs_3 *)data;
hdr3->r = 0;
hdr3->si = 0;
hdr3->cv = 0;
hdr3->tfi_hi = (tfi >> 3) & 0x3;
hdr3->tfi_lo = tfi & 0x7;
hdr3->bsn1_hi = 0;
hdr3->bsn1_lo = 2;
hdr3->cps_hi = 0;
hdr3->cps_lo = 0;
hdr3->spb = 0;
hdr3->rsb = 0;
hdr3->pi = 0;
hdr3->spare = 0;
hdr3->dummy = 1;
data[4] = 0x0;
data[5] = 0x2b;
data[6] = 0x2b;
data[7] = 0x2b;
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data[0], sizeof(data), *fn, &meas);
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_SCHED_ACK, NULL);
tbf_ul_ack_create_rlcmac_msg(ul_tbf, *fn, ts_no);
request_dl_rlc_block(ul_tbf, fn);
check_tbf(ul_tbf);
OSMO_ASSERT(tbf_ul_ack_fi(ul_tbf)->state == TBF_UL_ACK_ST_NONE);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
return ul_tbf;
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf_two_phase_puan_CRBB(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class)
{
GprsMs *ms;
uint8_t trx_no = 0;
int tfi = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_pdch *pdch;
/* check the TBF */
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
OSMO_ASSERT(ul_tbf);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
/* send fake data with cv=0*/
struct gprs_rlc_ul_header_egprs_3 *hdr3 = NULL;
uint8_t data[49] = {0};
hdr3 = (struct gprs_rlc_ul_header_egprs_3 *)data;
/*header_construction */
memset(data, 0x2b, sizeof(data));
/* Message with CRBB */
for (int i = 80 ; i < 160; i++) {
hdr3->r = 0;
hdr3->si = 0;
hdr3->cv = 10;
hdr3->tfi_hi = (tfi >> 3) & 0x3;
hdr3->tfi_lo = tfi & 0x7;
hdr3->bsn1_hi = ((i)&0x1f);
hdr3->bsn1_lo = ((i)/32);
hdr3->cps_hi = 0;
hdr3->cps_lo = 0;
hdr3->spb = 0;
hdr3->rsb = 0;
hdr3->pi = 0;
hdr3->spare = 0;
hdr3->dummy = 1;
data[4] = 0x0;
data[5] = 0x0;
data[6] = 0x2b;
data[7] = 0x2b;
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data[0], sizeof(data), *fn, &meas);
}
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_SCHED_ACK, NULL);
tbf_ul_ack_create_rlcmac_msg(ul_tbf, *fn, ts_no);
memset(data, 0x2b, sizeof(data));
hdr3 = (struct gprs_rlc_ul_header_egprs_3 *)data;
hdr3->r = 0;
hdr3->si = 0;
hdr3->cv = 0;
hdr3->tfi_hi = (tfi >> 3) & 0x3;
hdr3->tfi_lo = tfi & 0x7;
hdr3->bsn1_hi = 0;
hdr3->bsn1_lo = 2;
hdr3->cps_hi = 0;
hdr3->cps_lo = 0;
hdr3->spb = 0;
hdr3->rsb = 0;
hdr3->pi = 0;
hdr3->spare = 0;
hdr3->dummy = 1;
data[4] = 0x0;
data[5] = 0x2b;
data[6] = 0x2b;
data[7] = 0x2b;
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data[0], sizeof(data), *fn, &meas);
request_dl_rlc_block(ul_tbf, fn);
check_tbf(ul_tbf);
OSMO_ASSERT(tbf_ul_ack_fi(ul_tbf)->state == TBF_UL_ACK_ST_NONE);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
return ul_tbf;
}
static gprs_rlcmac_ul_tbf *establish_ul_tbf_two_phase(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class)
{
GprsMs *ms;
uint32_t rach_fn = *fn - 51;
uint32_t sba_fn = *fn + 52;
uint8_t trx_no = 0;
int tfi = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_pdch *pdch;
RlcMacUplink_t ulreq = {0};
/* needed to set last_rts_fn in the PDCH object */
request_dl_rlc_block(bts, trx_no, ts_no, fn);
/* simulate RACH, sends an Immediate Assignment Uplink on the AGCH */
bts_handle_rach(bts, 0x73, rach_fn, qta);
/* get next free TFI */
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_UL_TBF, &trx_no, -1);
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
ulreq.u.Packet_Resource_Request.PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ulreq.u.Packet_Resource_Request.ID.UnionType = 1; /* != 0 */
ulreq.u.Packet_Resource_Request.ID.u.TLLI = tlli;
ulreq.u.Packet_Resource_Request.Exist_MS_Radio_Access_capability2 = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
Count_MS_RA_capability_value = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Exist_Multislot_capability = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
Exist_GPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
Exist_EGPRS_multislot_class = 1;
ulreq.u.Packet_Resource_Request.MS_Radio_Access_capability2.
MS_RA_capability_value[0].u.Content.Multislot_capability.
EGPRS_multislot_class = ms_class;
}
send_ul_mac_block(bts, trx_no, ts_no, &ulreq, sba_fn);
/* check the TBF */
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
OSMO_ASSERT(ul_tbf != NULL);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
/* send packet uplink assignment */
*fn = sba_fn;
request_dl_rlc_block(ul_tbf, fn);
/* send real acknowledgement */
send_control_ack(ul_tbf);
check_tbf(ul_tbf);
/* send fake data */
uint8_t data_msg[23] = {
0x00 | 0xf << 2, /* GPRS_RLCMAC_DATA_BLOCK << 6, CV = 15 */
uint8_t(0 | (tfi << 1)),
uint8_t(1), /* BSN:7, E:1 */
};
pdch = &bts->trx[trx_no].pdch[ts_no];
pdch->rcv_block(&data_msg[0], sizeof(data_msg), *fn, &meas);
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
return ul_tbf;
}
static void send_dl_data(struct gprs_rlcmac_bts *bts, uint32_t tlli, const char *imsi,
const uint8_t *data, unsigned data_size)
{
GprsMs *ms, *ms2;
ms = bts_ms_store(bts)->get_ms(tlli, 0, imsi);
dl_tbf_handle(bts, tlli, 0, imsi, 0, 0,
1000, data, data_size);
ms = bts_ms_by_imsi(bts, imsi);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_dl_tbf(ms) != NULL);
if (imsi[0] != '\0') {
ms2 = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms == ms2);
}
}
static void transmit_dl_data(struct gprs_rlcmac_bts *bts, uint32_t tlli, uint32_t *fn,
uint8_t slots = 0xff)
{
gprs_rlcmac_dl_tbf *dl_tbf;
GprsMs *ms;
unsigned ts_no;
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms);
dl_tbf = ms_dl_tbf(ms);
OSMO_ASSERT(dl_tbf);
while (dl_tbf->have_data()) {
uint8_t bn = fn2bn(*fn);
for (ts_no = 0 ; ts_no < 8; ts_no += 1) {
if (!(slots & (1 << ts_no)))
continue;
gprs_rlcmac_rcv_rts_block(bts,
dl_tbf->trx->trx_no, ts_no,
*fn, bn);
}
*fn = fn_add_blocks(*fn, 1);
}
}
static inline void print_ta_tlli(const gprs_rlcmac_ul_tbf *ul_tbf, bool print_ms)
{
fprintf(stderr, "Got '%s', TA=%d\n", ul_tbf->name(), ul_tbf->ta());
if (print_ms)
fprintf(stderr, "Got MS: TLLI = 0x%08x, TA = %d\n", ms_tlli(ul_tbf->ms()), ms_ta(ul_tbf->ms()));
}
static void test_tbf_single_phase()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = DUMMY_FN; /* 17,25,9 */
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint16_t qta = 31;
gprs_rlcmac_ul_tbf *ul_tbf;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no);
ul_tbf = establish_ul_tbf_single_phase(bts, ts_no, tlli, &fn, qta);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, (const uint8_t *)"TEST", 4);
fprintf(stderr, "=== end %s ===\n", __func__);
TALLOC_FREE(the_pcu);
}
static void test_tbf_egprs_two_phase_puan(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
uint8_t egprs_ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
uint8_t test_data[256];
fprintf(stderr, "=== start %s ===\n", __func__);
memset(test_data, 1, sizeof(test_data));
setup_bts(bts, ts_no, 4);
bts->initial_mcs_dl = 9;
the_pcu->vty.ws_base = 128;
the_pcu->vty.ws_pdch = 64;
ul_tbf = establish_ul_tbf(bts, ts_no, tlli, &fn, qta, ms_class, egprs_ms_class);
/* Function to generate URBB with no length */
ul_tbf = establish_ul_tbf_two_phase_puan_URBB_no_length(bts, ts_no, tlli, &fn,
qta, ms_class, egprs_ms_class, ul_tbf);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
static_cast<gprs_rlc_ul_window *>(ul_tbf->window())->reset_state();
/* Function to generate URBB with length */
ul_tbf = establish_ul_tbf_two_phase_puan_URBB_with_length(bts, ts_no, tlli, &fn,
qta, ms_class, egprs_ms_class, ul_tbf);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
static_cast<gprs_rlc_ul_window *>(ul_tbf->window())->reset_state();
/* Function to generate CRBB */
the_pcu->vty.ws_base = 128;
the_pcu->vty.ws_pdch = 64;
ul_tbf = establish_ul_tbf_two_phase_puan_CRBB(bts, ts_no, tlli, &fn,
qta, ms_class, egprs_ms_class);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
/*
* Trigger rach for single block
*/
static void test_immediate_assign_rej_single_block()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint32_t fn = 2654218;
uint16_t qta = 31;
int ts_no = 7;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 4);
bts->trx[0].pdch[ts_no].disable();
uint32_t rach_fn = fn - 51;
int rc = 0;
/*
* simulate RACH, sends an Immediate Assignment
* Uplink reject on the AGCH
*/
rc = bts_handle_rach(bts, 0x70, rach_fn, qta);
OSMO_ASSERT(rc == -EBUSY);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
/*
* Trigger rach till resources(USF) exhaust
*/
static void test_immediate_assign_rej_multi_block()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint32_t fn = 2654218;
uint16_t qta = 31;
int ts_no = 7;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 4);
uint32_t rach_fn = fn - 51;
int rc = 0;
/*
* simulate RACH, sends an Immediate Assignment Uplink
* reject on the AGCH
*/
rc = bts_handle_rach(bts, 0x78, rach_fn, qta);
rc = bts_handle_rach(bts, 0x79, rach_fn, qta);
rc = bts_handle_rach(bts, 0x7a, rach_fn, qta);
rc = bts_handle_rach(bts, 0x7b, rach_fn, qta);
rc = bts_handle_rach(bts, 0x7c, rach_fn, qta);
rc = bts_handle_rach(bts, 0x7d, rach_fn, qta);
rc = bts_handle_rach(bts, 0x7e, rach_fn, qta);
rc = bts_handle_rach(bts, 0x7f, rach_fn, qta);
OSMO_ASSERT(rc == -EBUSY);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_immediate_assign_rej()
{
test_immediate_assign_rej_multi_block();
test_immediate_assign_rej_single_block();
}
static void test_tbf_two_phase()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 4);
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli, &fn, qta,
ms_class, 0);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, (const uint8_t *)"TEST", 4);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static inline void print_ms(GprsMs *ms, bool old)
{
fprintf(stderr, "%s MS: TLLI = 0x%08x, TA = %d, IMSI = %s, LLC = %zu\n",
old ? "Old" : "New", ms_tlli(ms), ms_ta(ms), ms_imsi(ms), llc_queue_size(ms_llc_queue(ms)));
}
static void test_tbf_ra_update_rach()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli1 = 0xf1223344;
uint32_t tlli2 = 0xf5667788;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
gprs_rlcmac_dl_tbf *dl_tbf;
GprsMs *ms, *ms1, *ms2;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 4);
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli1, &fn, qta,
ms_class, 0);
ms1 = ul_tbf->ms();
print_ta_tlli(ul_tbf, false);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)"RAU_ACCEPT", 10);
print_ms(ms1, true);
/* Send Packet Downlink Assignment to MS */
request_dl_rlc_block(ul_tbf, &fn);
/* Ack it */
send_control_ack(ul_tbf);
/* Make sure the RAU Accept gets sent to the MS */
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms1)) == 1);
transmit_dl_data(bts, tlli1, &fn);
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms1)) == 0);
dl_tbf = ms_dl_tbf(ms1);
OSMO_ASSERT(dl_tbf);
fn = get_poll_fn(dl_tbf, dl_tbf->control_ts);
send_empty_block(dl_tbf, dl_tbf->control_ts, fn);
fn = fn_add_blocks(fn, 1);
/* Now establish a new TBF for the RA UPDATE COMPLETE (new TLLI) */
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli2, &fn, qta,
ms_class, 0);
ms2 = ul_tbf->ms();
/* The PCU cannot know yet, that both TBF belong to the same MS */
OSMO_ASSERT(ms1 != ms2);
print_ms(ms1, true);
/* Send some downlink data along with the new TLLI and the IMSI so that
* the PCU can see, that both MS objects belong to same MS */
send_dl_data(bts, tlli2, imsi, (const uint8_t *)"DATA", 4);
ms = bts_ms_by_imsi(bts, imsi);
OSMO_ASSERT(ms == ms2);
print_ms(ms2, false);
ms = bts_ms_by_tlli(bts, tlli1, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms == NULL);
ms = bts_ms_by_tlli(bts, tlli2, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms == ms2);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_dl_flow_and_rach_two_phase()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli1 = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
gprs_rlcmac_dl_tbf *dl_tbf;
GprsMs *ms, *ms1, *ms2;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 1);
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli1, &fn, qta,
ms_class, 0);
ms1 = ul_tbf->ms();
print_ta_tlli(ul_tbf, false);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)"DATA 1 *************", 20);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)"DATA 2 *************", 20);
print_ms(ms1, true);
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms1)) == 2);
dl_tbf = ms_dl_tbf(ms1);
OSMO_ASSERT(dl_tbf != NULL);
/* Get rid of old UL TBF */
tbf_free(ul_tbf);
ms = bts_ms_by_tlli(bts, tlli1, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms1 == ms);
/* Now establish a new UL TBF, this will consume one LLC packet */
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli1, &fn, qta,
ms_class, 0);
ms2 = ul_tbf->ms();
print_ms(ms2, false);
/* This should be the same MS object */
OSMO_ASSERT(ms2 == ms1);
ms = bts_ms_by_tlli(bts, tlli1, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms2 == ms);
/* A DL TBF should still exist */
OSMO_ASSERT(ms_dl_tbf(ms));
/* No queued packets should be lost */
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms)) == 2);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_dl_flow_and_rach_single_phase()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli1 = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
gprs_rlcmac_dl_tbf *dl_tbf;
GprsMs *ms, *ms1, *ms2;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 1);
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli1, &fn, qta,
ms_class, 0);
ms1 = ul_tbf->ms();
print_ta_tlli(ul_tbf, false);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)"DATA 1 *************", 20);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)"DATA 2 *************", 20);
print_ms(ms1, true);
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms1)) == 2);
dl_tbf = ms_dl_tbf(ms1);
OSMO_ASSERT(dl_tbf != NULL);
/* Get rid of old UL TBF */
tbf_free(ul_tbf);
ms = bts_ms_by_tlli(bts, tlli1, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms1 == ms);
/* Now establish a new UL TBF */
ul_tbf = establish_ul_tbf_single_phase(bts, ts_no, tlli1, &fn, qta);
ms2 = ul_tbf->ms();
print_ms(ms2, false);
/* There should be a different MS object */
OSMO_ASSERT(ms2 != ms1);
ms = bts_ms_by_tlli(bts, tlli1, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms2 == ms);
OSMO_ASSERT(ms1 != ms);
/* DL TBF should be removed */
OSMO_ASSERT(!ms_dl_tbf(ms));
/* No queued packets should be lost */
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms)) == 2);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_dl_reuse()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli1 = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
gprs_rlcmac_dl_tbf *dl_tbf1, *dl_tbf2;
GprsMs *ms1, *ms2;
unsigned i;
RlcMacUplink_t ulreq = {0};
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 1);
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli1, &fn, qta,
ms_class, 0);
ms1 = ul_tbf->ms();
print_ta_tlli(ul_tbf, false);
/* Send some LLC frames */
for (i = 0; i < 40; i++) {
char buf[32];
int rc;
rc = snprintf(buf, sizeof(buf), "LLC PACKET %02i", i);
OSMO_ASSERT(rc > 0);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)buf, rc);
}
print_ms(ms1, true);
/* Send Packet Downlink Assignment to MS */
request_dl_rlc_block(ul_tbf, &fn);
/* Ack it */
send_control_ack(ul_tbf);
/* Transmit all data */
transmit_dl_data(bts, tlli1, &fn);
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms1)) == 0);
OSMO_ASSERT(ms_dl_tbf(ms1));
OSMO_ASSERT(ms_dl_tbf(ms1)->state_is(TBF_ST_FINISHED));
dl_tbf1 = ms_dl_tbf(ms1);
/* Send some LLC frames */
for (i = 0; i < 10; i++) {
char buf[32];
int rc;
rc = snprintf(buf, sizeof(buf), "LLC PACKET %02i (TBF 2)", i);
OSMO_ASSERT(rc > 0);
send_dl_data(bts, tlli1, imsi, (const uint8_t *)buf, rc);
}
/* Drop first DL_ACK poll queued */
send_empty_block(dl_tbf1, dl_tbf1->control_ts, get_poll_fn(dl_tbf1, dl_tbf1->control_ts));
/* Fake Final DL Ack/Nack */
ulreq.u.MESSAGE_TYPE = MT_PACKET_DOWNLINK_ACK_NACK;
Packet_Downlink_Ack_Nack_t *ack = &ulreq.u.Packet_Downlink_Ack_Nack;
ack->PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ack->DOWNLINK_TFI = dl_tbf1->tfi();
ack->Ack_Nack_Description.FINAL_ACK_INDICATION = 1;
send_ul_mac_block(bts, 0, dl_tbf1->control_ts, &ulreq, get_poll_fn(dl_tbf1, dl_tbf1->control_ts));
OSMO_ASSERT(dl_tbf1->state_is(TBF_ST_WAIT_RELEASE));
request_dl_rlc_block(dl_tbf1, &fn);
ms2 = bts_ms_by_tlli(bts, tlli1, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms2 == ms1);
OSMO_ASSERT(ms_dl_tbf(ms2));
OSMO_ASSERT(ms_dl_tbf(ms2)->state_is(TBF_ST_ASSIGN));
dl_tbf2 = ms_dl_tbf(ms2);
OSMO_ASSERT(dl_tbf1 != dl_tbf2);
send_control_ack(dl_tbf1);
OSMO_ASSERT(dl_tbf2->state_is(TBF_ST_FLOW));
/* Transmit all data */
transmit_dl_data(bts, tlli1, &fn);
OSMO_ASSERT(llc_queue_size(ms_llc_queue(ms2)) == 0);
OSMO_ASSERT(ms_dl_tbf(ms2));
OSMO_ASSERT(ms_dl_tbf(ms2)->state_is(TBF_ST_FINISHED));
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_gprs_egprs()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
uint8_t ms_class = 45;
int rc = 0;
uint32_t tlli = 0xc0006789;
const char *imsi = "001001123456789";
unsigned delay_csec = 1000;
uint8_t buf[256] = {0};
fprintf(stderr, "=== start %s ===\n", __func__);
bts->pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, gprs_ns_prim_cb, NULL);
if (!bts->pcu->nsi) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
abort();
}
setup_bts(bts, ts_no);
/* EGPRS-only */
gprs_bssgp_init(bts, 3234, 3234, 1, 1, false, 0, 0, 0);
/* Does not support EGPRS */
rc = dl_tbf_handle(bts, tlli, 0, imsi, ms_class, 0,
delay_csec, buf, sizeof(buf));
OSMO_ASSERT(rc == 0);
fprintf(stderr, "=== end %s ===\n", __func__);
gprs_bssgp_destroy(bts);
TALLOC_FREE(the_pcu);
}
static inline void ws_check(gprs_rlcmac_dl_tbf *dl_tbf, const char *test, uint8_t exp_slots, uint16_t exp_ws,
bool free, bool end)
{
gprs_rlcmac_bts *bts = dl_tbf->bts;
if (!dl_tbf) {
fprintf(stderr, "%s(): FAILED (NULL TBF)\n", test);
return;
}
fprintf(stderr, "DL TBF slots: 0x%02x, N: %d, WS: %d",
dl_tbf->dl_slots(),
pcu_bitcount(dl_tbf->dl_slots()),
dl_tbf->window_size());
if (pcu_bitcount(dl_tbf->dl_slots()) != exp_slots || dl_tbf->window_size() != exp_ws)
fprintf(stderr, "%s(): DL TBF FAILED: dl_slots = %u (exp. %u), WS = %u (exp. %u)",
test, pcu_bitcount(dl_tbf->dl_slots()), 4, dl_tbf->window_size(), 128 + 4 * 64);
fprintf(stderr, "\n");
if (free)
tbf_free(dl_tbf);
if (end) {
fprintf(stderr, "=== end %s ===\n", test);
gprs_bssgp_destroy(bts);
}
}
static void test_tbf_ws()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
GprsMs *ms;
uint8_t ts_no = 4;
uint8_t ms_class = 12;
gprs_rlcmac_dl_tbf *dl_tbf;
fprintf(stderr, "=== start %s ===\n", __func__);
bts->pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, gprs_ns_prim_cb, NULL);
if (!bts->pcu->nsi) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
abort();
}
setup_bts(bts, ts_no);
the_pcu->vty.ws_base = 128;
the_pcu->vty.ws_pdch = 64;
the_pcu->alloc_algorithm = alloc_algorithm_b;
bts->trx[0].pdch[2].enable();
bts->trx[0].pdch[3].enable();
/* bts->trx[0].pdch[4].enable(); Already enabled during setup_bts() */
bts->trx[0].pdch[5].enable();
gprs_bssgp_init(bts, 4234, 4234, 1, 1, false, 0, 0, 0);
/* Does no support EGPRS */
ms = bts_alloc_ms(bts, ms_class, 0);
dl_tbf = tbf_alloc_dl_tbf(bts, ms, 0, false);
ws_check(dl_tbf, __func__, 4, 64, true, false);
/* EGPRS-only */
/* Does support EGPRS */
ms = bts_alloc_ms(bts, ms_class, ms_class);
dl_tbf = tbf_alloc_dl_tbf(bts, ms, 0, false);
ws_check(dl_tbf, __func__, 4, 128 + 4 * 64, true, true);
TALLOC_FREE(the_pcu);
}
static void test_tbf_update_ws(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
GprsMs *ms;
uint8_t ts_no = 4;
uint8_t ms_class = 11;
gprs_rlcmac_dl_tbf *dl_tbf;
fprintf(stderr, "=== start %s ===\n", __func__);
bts->pcu->nsi = gprs_ns2_instantiate(tall_pcu_ctx, gprs_ns_prim_cb, NULL);
if (!bts->pcu->nsi) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
abort();
}
setup_bts(bts, ts_no);
the_pcu->vty.ws_base = 128;
the_pcu->vty.ws_pdch = 64;
the_pcu->alloc_algorithm = alloc_algorithm_b;
bts->trx[0].pdch[2].enable();
bts->trx[0].pdch[3].enable();
/* bts->trx[0].pdch[4].enable(); Already enabled during setup_bts()) */
bts->trx[0].pdch[5].enable();
gprs_bssgp_init(bts, 5234, 5234, 1, 1, false, 0, 0, 0);
/* EGPRS-only */
/* Does support EGPRS */
ms = bts_alloc_ms(bts, ms_class, ms_class);
dl_tbf = tbf_alloc_dl_tbf(bts, ms, 0, true);
ws_check(dl_tbf, __func__, 1, 128 + 1 * 64, false, false);
dl_tbf->update();
/* window size should be 384 */
ws_check(dl_tbf, __func__, 4, 128 + 4 * 64, true, true);
TALLOC_FREE(the_pcu);
}
static void test_tbf_puan_urbb_len(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
uint8_t egprs_ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
uint8_t test_data[256];
fprintf(stderr, "=== start %s ===\n", __func__);
memset(test_data, 1, sizeof(test_data));
setup_bts(bts, ts_no, 4);
bts->initial_mcs_dl = 9;
ul_tbf = puan_urbb_len_issue(bts, ts_no, tlli, &fn, qta,
ms_class, egprs_ms_class);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static gprs_rlcmac_ul_tbf *tbf_li_decoding(struct gprs_rlcmac_bts *bts,
uint8_t ts_no, uint32_t tlli, uint32_t *fn, uint16_t qta,
uint8_t ms_class, uint8_t egprs_ms_class)
{
GprsMs *ms;
uint32_t rach_fn = *fn - 51;
uint32_t sba_fn = *fn + 52;
uint8_t trx_no = 0;
int tfi = 0;
gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_pdch *pdch;
RlcMacUplink_t ulreq = {0};
struct gprs_rlc_ul_header_egprs_3 *egprs3 = NULL;
Packet_Resource_Request_t *presreq = NULL;
MS_Radio_Access_capability_t *pmsradiocap = NULL;
Multislot_capability_t *pmultislotcap = NULL;
/* needed to set last_rts_fn in the PDCH object */
request_dl_rlc_block(bts, trx_no, ts_no, fn);
/*
* simulate RACH, this sends an Immediate
* Assignment Uplink on the AGCH
*/
bts_handle_rach(bts, 0x73, rach_fn, qta);
/* get next free TFI */
tfi = bts_tfi_find_free(bts, GPRS_RLCMAC_UL_TBF, &trx_no, -1);
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
presreq = &ulreq.u.Packet_Resource_Request;
presreq->PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
presreq->ID.UnionType = 1; /* != 0 */
presreq->ID.u.TLLI = tlli;
presreq->Exist_MS_Radio_Access_capability2 = 1;
pmsradiocap = &presreq->MS_Radio_Access_capability2;
pmsradiocap->Count_MS_RA_capability_value = 1;
pmsradiocap->MS_RA_capability_value[0].u.Content.
Exist_Multislot_capability = 1;
pmultislotcap = &pmsradiocap->MS_RA_capability_value[0].
u.Content.Multislot_capability;
pmultislotcap->Exist_GPRS_multislot_class = 1;
pmultislotcap->GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
pmultislotcap->Exist_EGPRS_multislot_class = 1;
pmultislotcap->EGPRS_multislot_class = ms_class;
}
send_ul_mac_block(bts, trx_no, ts_no, &ulreq, sba_fn);
/* check the TBF */
ul_tbf = bts_ul_tbf_by_tfi(bts, tfi, trx_no, ts_no);
OSMO_ASSERT(ul_tbf);
OSMO_ASSERT(ul_tbf->ta() == qta / 4);
/* send packet uplink assignment */
*fn = sba_fn;
request_dl_rlc_block(ul_tbf, fn);
/* send real acknowledgement */
send_control_ack(ul_tbf);
check_tbf(ul_tbf);
uint8_t data_msg[49] = {0};
pdch = &bts->trx[trx_no].pdch[ts_no];
ms = bts_ms_by_tlli(bts, tlli, GSM_RESERVED_TMSI);
OSMO_ASSERT(ms != NULL);
OSMO_ASSERT(ms_ta(ms) == qta/4);
OSMO_ASSERT(ms_ul_tbf(ms) == ul_tbf);
egprs3 = (struct gprs_rlc_ul_header_egprs_3 *) data_msg;
egprs3->si = 0;
egprs3->r = 1;
egprs3->cv = 7;
egprs3->tfi_hi = tfi & 0x03;
egprs3->tfi_lo = (tfi & 0x1c) >> 2;
egprs3->bsn1_hi = 0;
egprs3->bsn1_lo = 0;
egprs3->cps_hi = 1;
data_msg[3] = 0xff;
egprs3->pi = 0;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 0;
egprs3->pi = 0;
pdch->rcv_block(data_msg, 49, *fn, &meas);
egprs3->bsn1_hi = 1;
egprs3->bsn1_lo = 0;
data_msg[3] = 0x7f;
egprs3->cps_lo = 1;
egprs3->rsb = 0;
egprs3->spb = 0;
egprs3->pi = 0;
data_msg[4] = 0x2;
data_msg[5] = 0x0;
pdch->rcv_block(data_msg, 49, *fn, &meas);
OSMO_ASSERT(ul_tbf->m_llc.index == 43);
return ul_tbf;
}
static void test_tbf_li_decoding(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
uint8_t egprs_ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
uint8_t test_data[256];
fprintf(stderr, "=== start %s ===\n", __func__);
memset(test_data, 1, sizeof(test_data));
setup_bts(bts, ts_no, 4);
bts->initial_mcs_dl = 9;
ul_tbf = tbf_li_decoding(bts, ts_no, tlli, &fn, qta,
ms_class, egprs_ms_class);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
/*
* Test that a bit within the uncompressed bitmap whose BSN is not within
* the transmit window shall be ignored. See section 9.1.8.2.4 of 44.060
* version 7.27.0 Release 7.
*/
static void test_tbf_epdan_out_of_rx_window(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ms_class = 11;
uint8_t egprs_ms_class = 11;
uint8_t trx_no;
uint32_t tlli = 0xffeeddcc;
gprs_rlcmac_dl_tbf *dl_tbf;
int ts_no = 4;
bitvec *block;
uint8_t bits_data[RLC_EGPRS_MAX_WS/8];
bitvec bits;
int bsn_begin, bsn_end;
EGPRS_PD_AckNack_t *ack_nack;
RlcMacUplink_t ul_control_block;
gprs_rlc_v_b *prlcmvb;
gprs_rlc_dl_window *prlcdlwindow;
int rc;
memset(&ul_control_block, 0, sizeof(RlcMacUplink_t));
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no);
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2031, 200, OSMO_TDEF_MS) == 0);
/* ARQ II */
the_pcu->vty.dl_arq_type = EGPRS_ARQ2;
/*
* Simulate a message captured during over-the-air testing,
* where the following values were observed:
* v_a = 1176, vs = 1288, max sns = 2048, window size = 480.
*/
uint8_t data_msg[23] = {0x40, 0x20, 0x0b, 0xff, 0xd1,
0x61, 0x00, 0x3e, 0x0e, 0x51, 0x9f,
0xff, 0xff, 0xfb, 0x80, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
dl_tbf = create_dl_tbf(bts, ms_class, egprs_ms_class, &trx_no);
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
prlcdlwindow = static_cast<gprs_rlc_dl_window *>(dl_tbf->window());
prlcmvb = &prlcdlwindow->m_v_b;
prlcdlwindow->m_v_s = 1288;
prlcdlwindow->m_v_a = 1176;
prlcdlwindow->set_sns(2048);
prlcdlwindow->set_ws(480);
prlcmvb->mark_unacked(1176);
prlcmvb->mark_unacked(1177);
prlcmvb->mark_unacked(1286);
prlcmvb->mark_unacked(1287);
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
block = bitvec_alloc(23, tall_pcu_ctx);
bitvec_unpack(block, data_msg);
bits.data = bits_data;
bits.data_len = sizeof(bits_data);
bits.cur_bit = 0;
rc = decode_gsm_rlcmac_uplink(block, &ul_control_block);
OSMO_ASSERT(rc == 0);
ack_nack = &ul_control_block.u.Egprs_Packet_Downlink_Ack_Nack;
OSMO_ASSERT(prlcmvb->is_unacked(1176));
OSMO_ASSERT(prlcmvb->is_unacked(1177));
OSMO_ASSERT(prlcmvb->is_unacked(1286));
OSMO_ASSERT(prlcmvb->is_unacked(1287));
Decoding::decode_egprs_acknack_bits(
&ack_nack->EGPRS_AckNack.Desc, &bits,
&bsn_begin, &bsn_end, prlcdlwindow);
dl_tbf->rcvd_dl_ack(
ack_nack->EGPRS_AckNack.Desc.FINAL_ACK_INDICATION,
bsn_begin, &bits);
OSMO_ASSERT(prlcmvb->is_invalid(1176));
OSMO_ASSERT(prlcmvb->is_invalid(1177));
OSMO_ASSERT(prlcmvb->is_acked(1286));
OSMO_ASSERT(prlcmvb->is_acked(1287));
bitvec_free(block);
tbf_free(dl_tbf);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_egprs_two_phase_spb(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
uint8_t egprs_ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
uint8_t test_data[256];
fprintf(stderr, "=== start %s ===\n", __func__);
memset(test_data, 1, sizeof(test_data));
setup_bts(bts, ts_no, 4);
bts->initial_mcs_dl = 9;
ul_tbf = establish_ul_tbf_two_phase_spb(bts, ts_no, tlli, &fn, qta,
ms_class, egprs_ms_class);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_egprs_two_phase()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
int ts_no = 7;
uint32_t fn = 2654218;
uint16_t qta = 31;
uint32_t tlli = 0xf1223344;
const char *imsi = "0011223344";
uint8_t ms_class = 1;
uint8_t egprs_ms_class = 1;
gprs_rlcmac_ul_tbf *ul_tbf;
uint8_t test_data[256];
fprintf(stderr, "=== start %s ===\n", __func__);
memset(test_data, 1, sizeof(test_data));
setup_bts(bts, ts_no, 4);
bts->initial_mcs_dl = 9;
ul_tbf = establish_ul_tbf_two_phase(bts, ts_no, tlli, &fn, qta,
ms_class, egprs_ms_class);
print_ta_tlli(ul_tbf, true);
send_dl_data(bts, tlli, imsi, test_data, sizeof(test_data));
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void establish_and_use_egprs_dl_tbf(struct gprs_rlcmac_bts *bts, int mcs)
{
unsigned i;
uint8_t ms_class = 11;
uint8_t egprs_ms_class = 11;
uint32_t fn = 0;
uint8_t trx_no;
uint32_t tlli = 0xffeeddcc;
uint8_t test_data[512];
uint8_t rbb[64/8];
gprs_rlcmac_dl_tbf *dl_tbf;
fprintf(stderr, "Testing MCS-%d\n", mcs);
memset(test_data, 1, sizeof(test_data));
bts->initial_mcs_dl = mcs;
dl_tbf = create_dl_tbf(bts, ms_class, egprs_ms_class, &trx_no);
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
for (i = 0; i < sizeof(llc_data); i++)
llc_data[i] = i%256;
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Schedule a small LLC frame */
dl_tbf->append_data(1000, test_data, 10);
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Drain the queue */
while (dl_tbf->have_data()) {
/* Request to send one RLC/MAC block */
request_dl_rlc_block(dl_tbf, &fn);
}
send_empty_block(dl_tbf, dl_tbf->control_ts, fn);
/* Schedule a large LLC frame */
dl_tbf->append_data(1000, test_data, sizeof(test_data));
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Drain the queue */
while (dl_tbf->have_data()) {
/* Request to send one RLC/MAC block */
request_dl_rlc_block(dl_tbf, &fn);
}
send_empty_block(dl_tbf, dl_tbf->control_ts, fn);
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
_rcv_ack(true, dl_tbf, rbb); /* Receive a final ACK */
/* Clean up and ensure tbfs are in the correct state */
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_WAIT_RELEASE));
check_tbf(dl_tbf);
tbf_free(dl_tbf);
}
static gprs_rlcmac_dl_tbf *tbf_init(struct gprs_rlcmac_bts *bts,
int mcs)
{
unsigned i;
uint8_t ms_class = 11;
uint8_t egprs_ms_class = 11;
uint8_t trx_no;
uint32_t tlli = 0xffeeddcc;
uint8_t test_data[512];
gprs_rlcmac_dl_tbf *dl_tbf;
memset(test_data, 1, sizeof(test_data));
bts->initial_mcs_dl = mcs;
dl_tbf = create_dl_tbf(bts, ms_class, egprs_ms_class, &trx_no);
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
for (i = 0; i < sizeof(test_data); i++)
test_data[i] = i%256;
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
/* Schedule a LLC frame
* passing only 100 bytes, since it is enough to construct
* 2 RLC data blocks. Which are enough to test Header Type 1
* cases
*/
dl_tbf->append_data(1000, test_data, 100);
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_FLOW));
return dl_tbf;
}
static void tbf_cleanup(gprs_rlcmac_dl_tbf *dl_tbf)
{
uint8_t rbb[64/8];
_rcv_ack(true, dl_tbf, rbb); /* Receive a final ACK */
/* Clean up and ensure tbfs are in the correct state */
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_WAIT_RELEASE));
check_tbf(dl_tbf);
tbf_free(dl_tbf);
}
#define NACK(tbf, x) do { \
gprs_rlc_dl_window *w = static_cast<gprs_rlc_dl_window *>(tbf->window()); \
w->m_v_b.mark_nacked(x); \
OSMO_ASSERT(w->m_v_b.is_nacked(x)); \
} while(0)
#define CHECK_UNACKED(tbf, cs, bsn) do { \
gprs_rlc_dl_window *w = static_cast<gprs_rlc_dl_window *>(tbf->window()); \
OSMO_ASSERT(w->m_v_b.is_unacked(bsn)); \
OSMO_ASSERT(mcs_chan_code(tbf->m_rlc.block(bsn)->cs_current_trans) == cs - 1); \
} while(0)
#define CHECK_NACKED(tbf, cs, bsn) do { \
gprs_rlc_dl_window *w = static_cast<gprs_rlc_dl_window *>(tbf->window()); \
OSMO_ASSERT(w->m_v_b.is_nacked(bsn)); \
OSMO_ASSERT(mcs_chan_code(tbf->m_rlc.block(bsn)->cs_current_trans) == cs - 1); \
} while(0)
#define MAKE_ACKED(m, tbf, fn, cs, check_unacked) do { \
m = tbf->create_dl_acked_block(fn, tbf->control_ts); \
OSMO_ASSERT(m); \
if (check_unacked) \
CHECK_UNACKED(tbf, cs, 0); \
else \
CHECK_NACKED(tbf, cs, 0); \
} while(0)
static void egprs_spb_to_normal_validation(struct gprs_rlcmac_bts *bts,
unsigned int mcs, unsigned int demanded_mcs)
{
uint32_t fn = 0;
gprs_rlcmac_dl_tbf *dl_tbf;
uint16_t bsn1, bsn2, bsn3;
struct msgb *msg;
struct gprs_rlc_dl_header_egprs_3 *egprs3;
struct gprs_rlc_dl_header_egprs_2 *egprs2;
fprintf(stderr, "Testing retx for MCS %u to reseg_mcs %u\n", mcs, demanded_mcs);
dl_tbf = tbf_init(bts, mcs);
/*
* Table 10.4.8a.3.1 of 44.060.
* (MCS7, MCS9) to (MCS2, MCS3) is not handled since it is same as
* (MCS5, MCS6) to (MCS2, MCS3) transition
*/
if (!(mcs == 6 && demanded_mcs == 3))
return;
fn = fn_add_blocks(fn, 1);
/* Send first RLC data block BSN 0 */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
egprs2 = (struct gprs_rlc_dl_header_egprs_2 *) msg->data;
bsn1 = (egprs2->bsn1_hi << 9) | (egprs2->bsn1_mid << 1) | (egprs2->bsn1_lo);
NACK(dl_tbf, 0);
OSMO_ASSERT(bsn1 == 0);
ms_set_current_cs_dl(dl_tbf->ms(), static_cast < enum CodingScheme > (CS4 + demanded_mcs));
fn = fn_add_blocks(fn, 1);
/* Send first segment with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, false);
OSMO_ASSERT(dl_tbf->m_rlc.block(0)->spb_status.block_status_dl
== EGPRS_RESEG_FIRST_SEG_SENT);
egprs3 = (struct gprs_rlc_dl_header_egprs_3 *) msg->data;
OSMO_ASSERT(egprs3->spb == 2);
/* Table 10.4.8a.3.1 of 44.060 */
OSMO_ASSERT(egprs3->cps == 3);
/* Send second segment with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, true);
OSMO_ASSERT(dl_tbf->m_rlc.block(0)->spb_status.block_status_dl
== EGPRS_RESEG_SECOND_SEG_SENT);
egprs3 = (struct gprs_rlc_dl_header_egprs_3 *) msg->data;
/* Table 10.4.8a.3.1 of 44.060 */
OSMO_ASSERT(egprs3->spb == 3);
bsn2 = (egprs3->bsn1_hi << 9) | (egprs3->bsn1_mid << 1) | (egprs3->bsn1_lo);
OSMO_ASSERT(bsn2 == bsn1);
/* Table 10.4.8a.3.1 of 44.060 */
OSMO_ASSERT(egprs3->cps == 3);
/* Handle (MCS3, MCS3) -> MCS6 case */
ms_set_current_cs_dl(dl_tbf->ms(), static_cast < enum CodingScheme > (CS4 + mcs));
NACK(dl_tbf, 0);
msg = dl_tbf->create_dl_acked_block(fn, dl_tbf->control_ts);
egprs2 = (struct gprs_rlc_dl_header_egprs_2 *) msg->data;
/* Table 10.4.8a.3.1 of 44.060 */
OSMO_ASSERT(egprs2->cps == 0);
bsn3 = (egprs2->bsn1_hi << 9) | (egprs2->bsn1_mid << 1) | (egprs2->bsn1_lo);
OSMO_ASSERT(bsn3 == bsn2);
tbf_cleanup(dl_tbf);
}
static void establish_and_use_egprs_dl_tbf_for_spb(struct gprs_rlcmac_bts *bts,
unsigned int mcs, unsigned int demanded_mcs)
{
uint32_t fn = 0;
gprs_rlcmac_dl_tbf *dl_tbf;
struct msgb *msg;
struct gprs_rlc_dl_header_egprs_3 *egprs3;
fprintf(stderr, "Testing retx for MCS %u to reseg_mcs %u\n", mcs, demanded_mcs);
dl_tbf = tbf_init(bts, mcs);
/*
* Table 10.4.8a.3.1 of 44.060.
* (MCS7, MCS9) to (MCS2, MCS3) is not handled since it is same as
* (MCS5, MCS6) to (MCS2, MCS3) transition
*/
/* TODO: Need to support of MCS8 -> MCS6 ->MCS3 transistion
* Refer commit be881c028fc4da00c4046ecd9296727975c206a3
* dated 2016-02-07 23:45:40 (UTC)
*/
if (!(((mcs == 5) && (demanded_mcs == 2)) ||
((mcs == 6) && (demanded_mcs == 3)) ||
((mcs == 4) && (demanded_mcs == 1))))
return;
fn = fn_add_blocks(fn, 1);
/* Send first RLC data block BSN 0 */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
NACK(dl_tbf, 0);
ms_set_current_cs_dl(dl_tbf->ms(), static_cast < enum CodingScheme > (CS4 + demanded_mcs));
fn = fn_add_blocks(fn, 1);
/* Send first segment with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, false);
OSMO_ASSERT(dl_tbf->m_rlc.block(0)->spb_status.block_status_dl
== EGPRS_RESEG_FIRST_SEG_SENT);
egprs3 = (struct gprs_rlc_dl_header_egprs_3 *) msg->data;
OSMO_ASSERT(egprs3->spb == 2);
/* Table 10.4.8a.3.1 of 44.060 */
switch (demanded_mcs) {
case 3:
OSMO_ASSERT(egprs3->cps == 3);
break;
case 2:
OSMO_ASSERT(egprs3->cps == 9);
break;
case 1:
OSMO_ASSERT(egprs3->cps == 11);
break;
default:
OSMO_ASSERT(false);
break;
}
/* Send second segment with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, true);
OSMO_ASSERT(dl_tbf->m_rlc.block(0)->spb_status.block_status_dl
== EGPRS_RESEG_SECOND_SEG_SENT);
egprs3 = (struct gprs_rlc_dl_header_egprs_3 *) msg->data;
/* Table 10.4.8a.3.1 of 44.060 */
OSMO_ASSERT(egprs3->spb == 3);
/* Table 10.4.8a.3.1 of 44.060 */
switch (demanded_mcs) {
case 3:
OSMO_ASSERT(egprs3->cps == 3);
break;
case 2:
OSMO_ASSERT(egprs3->cps == 9);
break;
case 1:
OSMO_ASSERT(egprs3->cps == 11);
break;
default:
OSMO_ASSERT(false);
break;
}
tbf_cleanup(dl_tbf);
}
static void establish_and_use_egprs_dl_tbf_for_retx(struct gprs_rlcmac_bts *bts,
unsigned int mcs, unsigned int demanded_mcs)
{
uint32_t fn = 0;
gprs_rlcmac_dl_tbf *dl_tbf;
struct msgb *msg;
fprintf(stderr, "Testing retx for MCS %u - %u\n", mcs, demanded_mcs);
dl_tbf = tbf_init(bts, mcs);
/* For MCS reduction cases like MCS9->MCS6, MCS7->MCS5
* The MCS transition are referred from table Table 8.1.1.2
* of TS 44.060
*/
/* TODO: Need to support of MCS8 -> MCS6 transistion
* Refer commit be881c028fc4da00c4046ecd9296727975c206a3
* dated 2016-02-07 23:45:40 (UTC)
*/
if (((mcs == 9) && (demanded_mcs < 9)) ||
((mcs == 7) && (demanded_mcs < 7))) {
fn = fn_add_blocks(fn, 1);
/* Send 2 RLC data block */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
CHECK_UNACKED(dl_tbf, mcs, 1);
NACK(dl_tbf, 0);
NACK(dl_tbf, 1);
/* Set the demanded MCS to demanded_mcs */
ms_set_current_cs_dl(dl_tbf->ms(), static_cast < enum CodingScheme > (CS4 + demanded_mcs));
fn = fn_add_blocks(fn, 1);
/* Retransmit the first RLC data block with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, true);
CHECK_NACKED(dl_tbf, mcs, 1);
fn = fn_add_blocks(fn, 1);
/* Retransmit the second RLC data block with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, true);
CHECK_UNACKED(dl_tbf, demanded_mcs, 1);
} else if (((mcs == 5) && (demanded_mcs > 6)) ||
((mcs == 6) && (demanded_mcs > 8))) {
fn = fn_add_blocks(fn, 1);
/* Send first RLC data block BSN 0 */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
fn = fn_add_blocks(fn, 1);
/* Send second RLC data block BSN 1 */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
CHECK_UNACKED(dl_tbf, mcs, 1);
NACK(dl_tbf, 0);
NACK(dl_tbf, 1);
ms_set_current_cs_dl(dl_tbf->ms(), static_cast < enum CodingScheme > (CS4 + demanded_mcs));
fn = fn_add_blocks(fn, 1);
/* Send first, second RLC data blocks with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, demanded_mcs, true);
CHECK_UNACKED(dl_tbf, demanded_mcs, 1);
} else if (mcs > 6) {
/* No Mcs change cases are handled here for mcs > MCS6*/
fn = fn_add_blocks(fn, 1);
/* Send first,second RLC data blocks */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
CHECK_UNACKED(dl_tbf, mcs, 1);
NACK(dl_tbf, 0);
NACK(dl_tbf, 1);
fn = fn_add_blocks(fn, 1);
/* Send first,second RLC data blocks with demanded_mcs*/
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
CHECK_UNACKED(dl_tbf, mcs, 1);
} else {
/* No MCS change cases are handled here for mcs <= MCS6*/
fn = fn_add_blocks(fn, 1);
/* Send first RLC data block */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
NACK(dl_tbf, 0);
fn = fn_add_blocks(fn, 1);
/* Send first RLC data block with demanded_mcs */
MAKE_ACKED(msg, dl_tbf, fn, mcs, true);
}
/* Clean up pending items in UL controller: */
send_empty_block(dl_tbf, dl_tbf->control_ts, fn+50);
tbf_cleanup(dl_tbf);
}
static void test_tbf_egprs_retx_dl(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
fprintf(stderr, "=== start %s ===\n", __func__);
the_pcu->vty.cs_downgrade_threshold = 0;
setup_bts(bts, ts_no);
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2031, 200, OSMO_TDEF_MS) == 0);
/* ARQ II */
the_pcu->vty.dl_arq_type = EGPRS_ARQ2;
/* First parameter is current MCS, second one is demanded_mcs */
establish_and_use_egprs_dl_tbf_for_retx(bts, 6, 6);
establish_and_use_egprs_dl_tbf_for_retx(bts, 1, 9);
establish_and_use_egprs_dl_tbf_for_retx(bts, 2, 8);
establish_and_use_egprs_dl_tbf_for_retx(bts, 5, 7);
establish_and_use_egprs_dl_tbf_for_retx(bts, 6, 9);
establish_and_use_egprs_dl_tbf_for_retx(bts, 7, 5);
establish_and_use_egprs_dl_tbf_for_retx(bts, 9, 6);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_egprs_spb_dl(void)
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
fprintf(stderr, "=== start %s ===\n", __func__);
the_pcu->vty.cs_downgrade_threshold = 0;
setup_bts(bts, ts_no);
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2031, 200, OSMO_TDEF_MS) == 0);
/* ARQ I resegmentation support */
the_pcu->vty.dl_arq_type = EGPRS_ARQ1;
/*
* First parameter is current MCS, second one is demanded_mcs
* currently only MCS5->MCS2, MCS6->3, MCS4->MCS1 is tested in UT
* rest scenarios has been integration tested
*/
establish_and_use_egprs_dl_tbf_for_spb(bts, 6, 3);
establish_and_use_egprs_dl_tbf_for_spb(bts, 5, 2);
establish_and_use_egprs_dl_tbf_for_spb(bts, 4, 1);
/* check MCS6->(MCS3+MCS3)->MCS6 case */
egprs_spb_to_normal_validation(bts, 6, 3);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_tbf_egprs_dl()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint8_t ts_no = 4;
int i;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no);
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2031, 200, OSMO_TDEF_MS) == 0);
/* ARQ II */
the_pcu->vty.dl_arq_type = EGPRS_ARQ2;
for (i = 1; i <= 9; i++)
establish_and_use_egprs_dl_tbf(bts, i);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_packet_access_rej_prr_no_other_tbfs()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint32_t fn = 2654218;
int ts_no = 7;
uint8_t trx_no = 0;
uint32_t tlli = 0xffeeddcc;
struct gprs_rlcmac_ul_tbf *ul_tbf;
struct GprsMs *ms;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 4);
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2000, 0, OSMO_TDEF_MS) == 0);
int rc = 0;
ms = bts_alloc_ms(bts, 0, 0);
ms_set_tlli(ms, tlli);
ul_tbf = handle_tbf_reject(bts, ms, trx_no, ts_no);
OSMO_ASSERT(ul_tbf != 0);
/* trigger packet access reject */
uint8_t bn = fn2bn(fn);
rc = gprs_rlcmac_rcv_rts_block(bts,
trx_no, ts_no, fn, bn);
OSMO_ASSERT(rc == 0);
osmo_select_main(0);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
static void test_packet_access_rej_prr()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint32_t fn = 2654218;
uint16_t qta = 31;
int ts_no = 7;
uint8_t trx_no = 0;
RlcMacUplink_t ulreq = {0};
Packet_Resource_Request_t *presreq = NULL;
uint8_t ms_class = 11;
uint8_t egprs_ms_class = 11;
uint32_t rach_fn = fn - 51;
uint32_t sba_fn = fn + 52;
uint32_t tlli = 0xffeeddcc;
MS_Radio_Access_capability_t *pmsradiocap = NULL;
Multislot_capability_t *pmultislotcap = NULL;
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, ts_no, 4);
int rc = 0;
/*
* Trigger rach till resources(USF) exhaust
*/
int i;
for (i = 0; i < 8; i++) {
rc = bts_handle_rach(bts, 0x70 + i, rach_fn, qta);
}
sba_fn = 52;
for (i = 0; i < 8; i++) {
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
presreq = &ulreq.u.Packet_Resource_Request;
presreq->PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
presreq->ID.UnionType = 1; /* != 0 */
presreq->ID.u.TLLI = tlli + i;
presreq->Exist_MS_Radio_Access_capability2 = 1;
pmsradiocap = &presreq->MS_Radio_Access_capability2;
pmsradiocap->Count_MS_RA_capability_value = 1;
pmsradiocap->MS_RA_capability_value[0].u.Content.
Exist_Multislot_capability = 1;
pmultislotcap = &pmsradiocap->MS_RA_capability_value[0].
u.Content.Multislot_capability;
pmultislotcap->Exist_GPRS_multislot_class = 1;
pmultislotcap->GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
pmultislotcap->Exist_EGPRS_multislot_class = 1;
pmultislotcap->EGPRS_multislot_class = egprs_ms_class;
}
send_ul_mac_block(bts, trx_no, ts_no, &ulreq, sba_fn);
sba_fn = fn_next_block(sba_fn);
/* trigger packet access reject */
uint8_t bn = fn2bn(fn);
rc = gprs_rlcmac_rcv_rts_block(bts,
trx_no, ts_no, fn, bn);
OSMO_ASSERT(rc == 0);
}
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
void test_packet_access_rej_epdan()
{
the_pcu = prepare_pcu();
struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
uint32_t tlli = 0xffeeddcc;
static uint8_t exp[] = { 0x40, 0x84, 0x7f, 0xf7, 0x6e, 0xe6, 0x7e, 0xab,
0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b
};
fprintf(stderr, "=== start %s ===\n", __func__);
setup_bts(bts, 4);
static gprs_rlcmac_dl_tbf *dl_tbf = tbf_init(bts, 1);
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
osmo_fsm_inst_dispatch(dl_tbf->ul_ass_fsm.fi, TBF_UL_ASS_EV_SCHED_ASS_REJ, NULL);
struct msgb *msg = tbf_ul_ass_create_rlcmac_msg((const struct gprs_rlcmac_tbf*)dl_tbf, 0, 0);
fprintf(stderr, "packet reject: %s\n",
osmo_hexdump(msg->data, 23));
if (!msgb_eq_data_print(msg, exp, GSM_MACBLOCK_LEN))
fprintf(stderr, "%s test failed!\n", __func__);
TALLOC_FREE(the_pcu);
fprintf(stderr, "=== end %s ===\n", __func__);
}
int main(int argc, char **argv)
{
struct vty_app_info pcu_vty_info = {0};
tall_pcu_ctx = talloc_named_const(NULL, 1, "moiji-mobile TbfTest 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_parse_category_mask(osmo_stderr_target, "DRLCMAC,1:DRLCMACDATA,3:DRLCMACDL,3:DRLCMACUL,3:"
"DRLCMACSCHED,1:DRLCMACMEAS,3:DNS,3:DLBSSGP,3:DPCU,5:"
"DL1IF,6:DTBF,1:DTBFUL,1:DTBFDL,1:DLGLOBAL,2:");
osmo_fsm_log_addr(false);
vty_init(&pcu_vty_info);
pcu_vty_init();
/* Initialize shared UL measurements */
pcu_l1_meas_set_link_qual(&meas, 12);
pcu_l1_meas_set_rssi(&meas, 31);
test_tbf_base();
test_tbf_tlli_update();
test_tbf_final_ack(TEST_MODE_STANDARD);
test_tbf_final_ack(TEST_MODE_REVERSE_FREE);
test_tbf_delayed_release();
test_tbf_imsi();
test_tbf_exhaustion();
test_tbf_dl_llc_loss();
test_tbf_single_phase();
test_tbf_two_phase();
test_tbf_ra_update_rach();
test_tbf_dl_flow_and_rach_two_phase();
test_tbf_dl_flow_and_rach_single_phase();
test_tbf_dl_reuse();
test_tbf_gprs_egprs();
test_tbf_ws();
test_tbf_egprs_two_phase();
test_tbf_egprs_two_phase_spb();
test_tbf_egprs_dl();
test_tbf_egprs_retx_dl();
test_tbf_egprs_spb_dl();
test_tbf_puan_urbb_len();
test_tbf_update_ws();
test_tbf_li_decoding();
test_tbf_epdan_out_of_rx_window();
test_immediate_assign_rej();
test_tbf_egprs_two_phase_puan();
test_packet_access_rej_epdan();
test_packet_access_rej_prr();
test_packet_access_rej_prr_no_other_tbfs();
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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