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libosmo-gprs/tests/gmm/gmm_prim_test.c

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/* gmm_prim tests
*
* (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau espin Pedrol <pespin@sysmocom.de>
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdint.h>
#include <stdio.h>
#include <osmocom/core/application.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/fsm.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/timer_compat.h>
#include <osmocom/core/select.h>
#include <osmocom/gprs/rlcmac/rlcmac_private.h>
#include <osmocom/gprs/llc/llc_prim.h>
#include <osmocom/gprs/llc/llc_private.h>
#include <osmocom/gprs/gmm/gmm.h>
#include <osmocom/gprs/gmm/gmm_prim.h>
#include <osmocom/gprs/gmm/gmm_pdu.h>
static void *tall_ctx = NULL;
/*
GSM A-I/F DTAP - Identity Request
Protocol Discriminator: GPRS mobility management messages (8)
.... 1000 = Protocol discriminator: GPRS mobility management messages (0x8)
0000 .... = Skip Indicator: No indication of selected PLMN (0)
DTAP GPRS Mobility Management Message Type: Identity Request (0x15)
Identity Type 2
.... 0... = Spare bit(s): 0
.... .010 = Type of identity: IMEI (2)
Force to Standby
0... .... = Spare bit(s): 0
.000 .... = Force to standby: Force to standby not indicated (0)
*/
static uint8_t pdu_gmm_identity_req[] = { 0x08, 0x15, 0x02 };
/*
Frame 101: 127 bytes on wire (1016 bits), 127 bytes captured (1016 bits) on interface lo, id 0
Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00)
Internet Protocol Version 4, Src: 192.168.1.140, Dst: 192.168.1.140
User Datagram Protocol, Src Port: 23000, Dst Port: 23010
GPRS Network Service, PDU type: NS_UNITDATA, BVCI 1800
Base Station Subsystem GPRS Protocol
MS-SGSN LLC (Mobile Station - Serving GPRS Support Node Logical Link Control) SAPI: GPRS Mobility Management
GSM A-I/F DTAP - Authentication and Ciphering Req
Protocol Discriminator: GPRS mobility management messages (8)
.... 1000 = Protocol discriminator: GPRS mobility management messages (0x8)
0000 .... = Skip Indicator: No indication of selected PLMN (0)
DTAP GPRS Mobility Management Message Type: Authentication and Ciphering Req (0x12)
Ciphering Algorithm
.... 0... = Spare bit(s): 0
.... .000 = Type of ciphering algorithm: ciphering not used (0)
IMEISV Request
0... .... = Spare bit(s): 0
.001 .... = IMEISV request: IMEISV requested (1)
Force to Standby
.... 0... = Spare bit(s): 0
.... .000 = Force to standby: Force to standby not indicated (0)
A&C Reference Number
0010 .... = A&C reference number: 2
Authentication Parameter RAND
Element ID: 0x21
RAND value: e2a6f3f8bb9ea701e0ce4f3364a99175
Ciphering Key Sequence Number
1000 .... = Element ID: 0x8-
.... 0... = Spare bit(s): 0
.... .000 = key sequence: Ciphering key sequence number (0)
*/
static uint8_t pdu_gmm_auth_ciph_req[] = {
0x08, 0x12, 0x10, 0x20, 0x21, 0xe2, 0xa6, 0xf3, 0xf8, 0xbb, 0x9e, 0xa7, 0x01, 0xe0, 0xce, 0x4f,
0x33, 0x64, 0xa9, 0x91, 0x75, 0x80
};
/*
GSM A-I/F DTAP - Attach Accept
Protocol Discriminator: GPRS mobility management messages (8)
.... 1000 = Protocol discriminator: GPRS mobility management messages (0x8)
0000 .... = Skip Indicator: No indication of selected PLMN (0)
DTAP GPRS Mobility Management Message Type: Attach Accept (0x02)
Attach Result
.... 0... = Follow-on proceed: False
.... .001 = Result of attach: GPRS only attached (1)
Force to Standby
0... .... = Spare bit(s): 0
.000 .... = Force to standby: Force to standby not indicated (0)
GPRS Timer
GPRS Timer: 10 min
001. .... = Unit: value is incremented in multiples of 1 minute (1)
...0 1010 = Timer value: 10
Radio Priority 2 - Radio priority for TOM8
.100 .... = Radio Priority (TOM8): priority level 4 (lowest) (4)
Radio Priority - Radio priority for SMS
.... .100 = Radio Priority (PDP or SMS): priority level 4 (lowest) (4)
Routing Area Identification - RAI: 234-70-5-0
Routing area identification: 234-70-5-0
Mobile Country Code (MCC): United Kingdom (234)
Mobile Network Code (MNC): AMSUK Limited (70)
Location Area Code (LAC): 0x0005 (5)
Routing Area Code (RAC): 0x00 (0)
GPRS Timer - Negotiated Ready Timer
Element ID: 0x17
GPRS Timer: 44 sec
000. .... = Unit: value is incremented in multiples of 2 seconds (0)
...1 0110 = Timer value: 22
Mobile Identity - Allocated P-TMSI - TMSI/P-TMSI (0xea711b41)
Element ID: 0x18
Length: 5
1111 .... = Unused: 0xf
.... 0... = Odd/even indication: Even number of identity digits
.... .100 = Mobile Identity Type: TMSI/P-TMSI/M-TMSI (4)
TMSI/P-TMSI/M-TMSI/5G-TMSI: 3933281089 (0xea711b41)
*/
static uint8_t pdu_gmm_att_acc[] = {
0x08, 0x02, 0x01, 0x2a, 0x44, 0x32, 0xf4, 0x07, 0x00, 0x05, 0x00, 0x17, 0x16, 0x18, 0x05, 0xf4,
0xea, 0x71, 0x1b, 0x41
};
/*
GSM A-I/F DTAP - Routing Area Update Accept
Protocol Discriminator: GPRS mobility management messages (8)
.... 1000 = Protocol discriminator: GPRS mobility management messages (0x8)
0000 .... = Skip Indicator: No indication of selected PLMN (0)
DTAP GPRS Mobility Management Message Type: Routing Area Update Accept (0x09)
Force to Standby
.... 0... = Spare bit(s): 0
.... .000 = Force to standby: Force to standby not indicated (0)
Update Result
.000 .... = Update Result: RA updated (0)
GPRS Timer - Periodic RA update timer
GPRS Timer: 10 sec
000. .... = Unit: value is incremented in multiples of 2 seconds (0)
...0 0101 = Timer value: 5
Routing Area Identification - RAI: 234-70-5-0
Routing area identification: 234-70-5-0
Mobile Country Code (MCC): United Kingdom (234)
Mobile Network Code (MNC): AMSUK Limited (70)
Location Area Code (LAC): 0x0005 (5)
Routing Area Code (RAC): 0x00 (0)
Mobile Identity - Allocated P-TMSI - TMSI/P-TMSI (0xec999002)
Element ID: 0x18
Length: 5
1111 .... = Unused: 0xf
.... 0... = Odd/even indication: Even number of identity digits
.... .100 = Mobile Identity Type: TMSI/P-TMSI/M-TMSI (4)
TMSI/P-TMSI/M-TMSI/5G-TMSI: 3969486850 (0xec999002)
GPRS Timer - Negotiated Ready Timer
Element ID: 0x17
GPRS Timer: 10 sec
000. .... = Unit: value is incremented in multiples of 2 seconds (0)
...0 0101 = Timer value: 5
*/
static uint8_t pdu_gmm_rau_acc[] = {
0x08, 0x09, 0x00, 0x05, 0x32, 0xf4, 0x07, 0x00,
0x05, 0x00, 0x18, 0x05, 0xf4, 0xec, 0x99, 0x90,
0x02, 0x17, 0x05
};
static uint8_t pdu_gmm_detach_acc[] = {
0x08, 0x06, 0x00
};
/* override, requires '-Wl,--wrap=osmo_get_rand_id' */
int __real_osmo_get_rand_id(uint8_t *data, size_t len);
int __wrap_osmo_get_rand_id(uint8_t *data, size_t len)
{
memset(data, 0x00, len);
return 0;
}
#define clock_debug(fmt, args...) \
do { \
struct timespec ts; \
struct timeval tv; \
osmo_clock_gettime(CLOCK_MONOTONIC, &ts); \
osmo_gettimeofday(&tv, NULL); \
fprintf(stdout, "sys={%lu.%06lu}, mono={%lu.%06lu}: " fmt "\n", \
tv.tv_sec, tv.tv_usec, ts.tv_sec, ts.tv_nsec/1000, ##args); \
} while (0)
static void clock_override_enable(bool enable)
{
osmo_gettimeofday_override = enable;
osmo_clock_override_enable(CLOCK_MONOTONIC, enable);
}
static void clock_override_set(long sec, long usec)
{
struct timespec *mono;
osmo_gettimeofday_override_time.tv_sec = sec;
osmo_gettimeofday_override_time.tv_usec = usec;
mono = osmo_clock_override_gettimespec(CLOCK_MONOTONIC);
mono->tv_sec = sec;
mono->tv_nsec = usec*1000;
clock_debug("clock_override_set");
}
static void clock_override_add_debug(long sec, long usec, bool dbg)
{
osmo_gettimeofday_override_add(sec, usec);
osmo_clock_override_add(CLOCK_MONOTONIC, sec, usec*1000);
if (dbg)
clock_debug("clock_override_add");
}
#define clock_override_add(sec, usec) clock_override_add_debug(sec, usec, true)
int test_gmm_prim_up_cb(struct osmo_gprs_gmm_prim *gmm_prim, void *user_data)
{
const char *pdu_name = osmo_gprs_gmm_prim_name(gmm_prim);
struct osmo_gprs_gmm_prim *gmm_prim_tx;
int rc;
switch (gmm_prim->oph.sap) {
case OSMO_GPRS_GMM_SAP_GMMREG:
switch (OSMO_PRIM_HDR(&gmm_prim->oph)) {
case OSMO_PRIM(OSMO_GPRS_GMM_GMMREG_ATTACH, PRIM_OP_CONFIRM):
if (gmm_prim->gmmreg.attach_cnf.accepted) {
printf("%s(): Rx %s accepted=%u allocated_ptmsi=0x%08x allocated_ptmsi_sig=0x%06x\n", __func__, pdu_name,
gmm_prim->gmmreg.attach_cnf.accepted,
gmm_prim->gmmreg.attach_cnf.acc.allocated_ptmsi,
gmm_prim->gmmreg.attach_cnf.acc.allocated_ptmsi_sig);
} else {
printf("%s(): Rx %s accepted=%u rej_cause=%u\n", __func__, pdu_name,
gmm_prim->gmmreg.attach_cnf.accepted,
gmm_prim->gmmreg.attach_cnf.rej.cause);
}
break;
case OSMO_PRIM(OSMO_GPRS_GMM_GMMREG_DETACH, PRIM_OP_CONFIRM):
printf("%s(): Rx %s detach_type='%s'\n", __func__, pdu_name,
osmo_gprs_gmm_detach_ms_type_name(gmm_prim->gmmreg.detach_cnf.detach_type));
break;
case OSMO_PRIM(OSMO_GPRS_GMM_GMMREG_SIM_AUTH, PRIM_OP_INDICATION):
printf("%s(): Rx %s ac_ref_nr=%u key_seq=%u rand=%s\n",
__func__, pdu_name,
gmm_prim->gmmreg.sim_auth_ind.ac_ref_nr,
gmm_prim->gmmreg.sim_auth_ind.key_seq,
osmo_hexdump(gmm_prim->gmmreg.sim_auth_ind.rand,
sizeof(gmm_prim->gmmreg.sim_auth_ind.rand)));
/* Emulate SIM, asnwer SRES=0xacacacac, Kc=bdbdbd... */
gmm_prim_tx = osmo_gprs_gmm_prim_alloc_gmmreg_sim_auth_rsp();
OSMO_ASSERT(gmm_prim_tx);
gmm_prim_tx->gmmreg.sim_auth_rsp.ac_ref_nr = gmm_prim->gmmreg.sim_auth_ind.ac_ref_nr;
gmm_prim_tx->gmmreg.sim_auth_rsp.key_seq = gmm_prim->gmmreg.sim_auth_ind.key_seq;
memcpy(gmm_prim_tx->gmmreg.sim_auth_rsp.rand, gmm_prim->gmmreg.sim_auth_ind.rand,
sizeof(gmm_prim_tx->gmmreg.sim_auth_rsp.rand));
memset(gmm_prim_tx->gmmreg.sim_auth_rsp.sres, 0xac,
sizeof(gmm_prim_tx->gmmreg.sim_auth_rsp.sres));
memset(gmm_prim_tx->gmmreg.sim_auth_rsp.kc, 0xbd,
sizeof(gmm_prim_tx->gmmreg.sim_auth_rsp.kc));
rc = osmo_gprs_gmm_prim_upper_down(gmm_prim_tx);
OSMO_ASSERT(rc == 0);
break;
default:
printf("%s(): Unexpected Rx %s\n", __func__, pdu_name);
OSMO_ASSERT(0)
}
break;
case OSMO_GPRS_GMM_SAP_GMMSM:
switch (OSMO_PRIM_HDR(&gmm_prim->oph)) {
case OSMO_PRIM(OSMO_GPRS_GMM_GMMSM_ESTABLISH, PRIM_OP_CONFIRM):
if (gmm_prim->gmmsm.establish_cnf.accepted)
printf("%s(): Rx %s sess_id=%u accepted\n", __func__, pdu_name,
gmm_prim->gmmsm.sess_id);
else
printf("%s(): Rx %s sess_id=%u rejected cause=%u\n", __func__, pdu_name,
gmm_prim->gmmsm.sess_id,
gmm_prim->gmmsm.establish_cnf.rej.cause);
break;
case OSMO_PRIM(OSMO_GPRS_GMM_GMMSM_UNITDATA, PRIM_OP_INDICATION):
printf("%s(): Rx %s sess_id=%u sm_pdu=%s\n", __func__, pdu_name,
gmm_prim->gmmsm.sess_id,
osmo_hexdump(gmm_prim->gmmsm.unitdata_ind.smpdu,
gmm_prim->gmmsm.unitdata_ind.smpdu_len));
break;
//case OSMO_PRIM(OSMO_GPRS_GMM_GMMSM_DETACH, PRIM_OP_CONFIRM):
// printf("%s(): Rx %s detach_type='%s'\n", __func__, pdu_name,
// osmo_gprs_gmm_detach_ms_type_name(gmm_prim->gmmsm.detach_cnf.detach_type));
// break;
default:
printf("%s(): Unexpected Rx %s\n", __func__, pdu_name);
OSMO_ASSERT(0)
}
break;
default:
printf("%s(): Unexpected Rx %s\n", __func__, pdu_name);
OSMO_ASSERT(0);
}
return 0;
}
int test_gmm_prim_down_cb(struct osmo_gprs_gmm_prim *gmm_prim, void *user_data)
{
const char *pdu_name = osmo_gprs_gmm_prim_name(gmm_prim);
switch (gmm_prim->oph.sap) {
case OSMO_GPRS_GMM_SAP_GMMRR:
OSMO_ASSERT(OSMO_PRIM_HDR(&gmm_prim->oph) ==
OSMO_PRIM(OSMO_GPRS_GMM_GMMRR_ASSIGN, PRIM_OP_REQUEST));
printf("%s(): Rx %s old_tlli=0x%08x new_tlli=0x%08x\n",
__func__, pdu_name,
gmm_prim->gmmrr.tlli, gmm_prim->gmmrr.assign_req.new_tlli);
break;
default:
printf("%s(): Unexpected Rx %s\n", __func__, pdu_name);
OSMO_ASSERT(0);
}
return 0;
}
int test_gmm_prim_llc_down_cb(struct osmo_gprs_llc_prim *llc_prim, void *user_data)
{
const char *pdu_name = osmo_gprs_llc_prim_name(llc_prim);
struct osmo_gprs_gmm_prim *gmm_prim_tx;
switch (llc_prim->oph.sap) {
case OSMO_GPRS_LLC_SAP_LLGMM:
switch (OSMO_PRIM_HDR(&llc_prim->oph)) {
case OSMO_PRIM(OSMO_GPRS_LLC_LLGMM_ASSIGN, PRIM_OP_REQUEST):
printf("%s(): Rx %s old_TLLI=0x%08x new_TLLI=0x%08x\n",
__func__, pdu_name,
llc_prim->llgmm.tlli, llc_prim->llgmm.assign_req.tlli_new);
break;
default:
printf("%s(): Rx %s TLLI=0x%08x\n", __func__, pdu_name, llc_prim->llgmm.tlli);
}
break;
case OSMO_GPRS_LLC_SAP_LL:
printf("%s(): Rx %s TLLI=0x%08x SAPI=%s l3=[%s]\n", __func__, pdu_name,
llc_prim->ll.tlli, osmo_gprs_llc_sapi_name(llc_prim->ll.sapi),
osmo_hexdump(llc_prim->ll.l3_pdu, llc_prim->ll.l3_pdu_len));
switch (OSMO_PRIM_HDR(&llc_prim->oph)) {
case OSMO_PRIM(OSMO_GPRS_LLC_LL_UNITDATA, PRIM_OP_REQUEST):
/* Immediately notify GMM that it was transmitted over the air: */
gmm_prim_tx = (struct osmo_gprs_gmm_prim *)gprs_rlcmac_prim_alloc_gmmrr_llc_transmitted_ind(llc_prim->ll.tlli);
gmm_prim_tx->oph.sap = OSMO_GPRS_GMM_SAP_GMMRR;
gmm_prim_tx->oph.primitive = OSMO_GPRS_GMM_GMMRR_LLC_TRANSMITTED;
osmo_gprs_gmm_prim_lower_up(gmm_prim_tx);
break;
}
break;
default:
printf("%s(): Unexpected Rx %s\n", __func__, pdu_name);
OSMO_ASSERT(0);
}
return 0;
}
/* Test explicit GPRS attach through GMMREG, TS 24.007 Annex C.1 */
static void test_gmm_prim_ms_gmmreg(void)
{
struct osmo_gprs_gmm_prim *gmm_prim;
struct osmo_gprs_llc_prim *llc_prim;
int rc;
uint32_t ptmsi = 0x00001234;
uint32_t ptmsi_sig = 0x556677;
uint32_t rand_tlli = 0x80001234;
uint32_t tlli;
char *imsi = "1234567890";
char *imei = "42342342342342";
char *imeisv = "4234234234234275";
printf("==== %s() [start] ====\n", __func__);
clock_override_set(0, 0);
rc = osmo_gprs_gmm_init(OSMO_GPRS_GMM_LOCATION_MS);
OSMO_ASSERT(rc == 0);
osmo_gprs_gmm_enable_gprs(true);
osmo_gprs_gmm_prim_set_up_cb(test_gmm_prim_up_cb, NULL);
osmo_gprs_gmm_prim_set_down_cb(test_gmm_prim_down_cb, NULL);
osmo_gprs_gmm_prim_set_llc_down_cb(test_gmm_prim_llc_down_cb, NULL);
/* MS sends GMM Attach Req */
gmm_prim = osmo_gprs_gmm_prim_alloc_gmmreg_attach_req();
OSMO_ASSERT(gmm_prim);
gmm_prim->gmmreg.attach_req.attach_type = OSMO_GPRS_GMM_ATTACH_TYPE_GPRS;
gmm_prim->gmmreg.attach_req.ptmsi = ptmsi;
gmm_prim->gmmreg.attach_req.ptmsi_sig = ptmsi_sig;
OSMO_STRLCPY_ARRAY(gmm_prim->gmmreg.attach_req.imsi, imsi);
OSMO_STRLCPY_ARRAY(gmm_prim->gmmreg.attach_req.imei, imei);
OSMO_STRLCPY_ARRAY(gmm_prim->gmmreg.attach_req.imeisv, imeisv);
gmm_prim->gmmreg.attach_req.old_rai = (struct gprs_ra_id){
.mcc = 0,
.mnc = 0,
.mnc_3_digits = false,
.lac = 0,
.rac = 0,
};
rc = osmo_gprs_gmm_prim_upper_down(gmm_prim);
OSMO_ASSERT(rc == 0);
/* Network answers with GMM Identity Req: */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_identity_req, sizeof(pdu_gmm_identity_req));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, MS answers GMM Identity Resp */
/* Network sends GMM Ciph Auth Req */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_auth_ciph_req, sizeof(pdu_gmm_auth_ciph_req));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, MS answers GMM Ciph Auth Resp */
/* Network sends GMM Attach Accept */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_att_acc, sizeof(pdu_gmm_att_acc));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* update the used ptmsi to align with what was assigned from the network: */
ptmsi = 0xea711b41;
tlli = gprs_tmsi2tlli(ptmsi, TLLI_LOCAL);
/* As a result, MS answers GMM Attach Complete */
/* As a result, MS submits GMMREG ATTACH.cnf */
/* Wait for READY timer to expire: */
clock_override_add(44, 0); /* 44: See GMM Attach Accept (pdu_gmm_att_acc) feed above */
clock_debug("Expect T3314 (READY) timeout");
osmo_select_main(0);
clock_override_add(10*60, 0); /* 44: See GMM Attach Accept (pdu_gmm_att_acc) feed above */
clock_debug("Expect T3312 (periodic RAU) timeout");
osmo_select_main(0);
/* Network sends GMM RAU Accept */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_rau_acc, sizeof(pdu_gmm_rau_acc));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* update the used ptmsi to align with what was assigned from the network: */
ptmsi = 0xea711b41;
tlli = gprs_tmsi2tlli(ptmsi, TLLI_LOCAL);
/* As a result, MS answers GMM RAU Complete */
/* ... */
/* Test PS paging request arriving from CCCH (RR): */
gmm_prim = osmo_gprs_gmm_prim_alloc_gmmrr_page_ind(tlli);
OSMO_ASSERT(gmm_prim);
rc = osmo_gprs_gmm_prim_lower_up(gmm_prim);
OSMO_ASSERT(rc == 0);
/* ... */
/* DETACH */
gmm_prim = osmo_gprs_gmm_prim_alloc_gmmreg_detach_req();
OSMO_ASSERT(gmm_prim);
gmm_prim->gmmreg.detach_req.detach_type = OSMO_GPRS_GMM_DETACH_MS_TYPE_GPRS;
gmm_prim->gmmreg.detach_req.poweroff_type = OSMO_GPRS_GMM_DETACH_POWEROFF_TYPE_NORMAL;
gmm_prim->gmmreg.detach_req.ptmsi = ptmsi;
rc = osmo_gprs_gmm_prim_upper_down(gmm_prim);
OSMO_ASSERT(rc == 0);
/* Network sends GMM Detach Accept */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_detach_acc, sizeof(pdu_gmm_detach_acc));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, MS answers GMM Attach Complete */
printf("==== %s() [end] ====\n", __func__);
}
/* Test implicit GPRS attach through SM (ACT PDP CTX), TS 24.007 Annex C.3 */
static void test_gmm_prim_ms_gmmsm(void)
{
struct osmo_gprs_gmm_prim *gmm_prim;
struct osmo_gprs_llc_prim *llc_prim;
int rc;
uint32_t ptmsi = 0x00001234;
uint32_t ptmsi_sig = 0x556677;
uint32_t rand_tlli = 0x80001234;
char *imsi = "1234567890";
char *imei = "42342342342342";
char *imeisv = "4234234234234275";
uint32_t sess_id = 1234;
uint8_t sm_pdu[] = {GSM48_PDISC_SM_GPRS, 0x28, 0x29, 0x30}; /* fake SM PDU */
printf("==== %s() [start] ====\n", __func__);
clock_override_set(0, 0);
rc = osmo_gprs_gmm_init(OSMO_GPRS_GMM_LOCATION_MS);
OSMO_ASSERT(rc == 0);
osmo_gprs_gmm_enable_gprs(true);
osmo_gprs_gmm_prim_set_up_cb(test_gmm_prim_up_cb, NULL);
osmo_gprs_gmm_prim_set_down_cb(test_gmm_prim_down_cb, NULL);
osmo_gprs_gmm_prim_set_llc_down_cb(test_gmm_prim_llc_down_cb, NULL);
/* MS sends primitive to active a PDP ctx: */
gmm_prim = osmo_gprs_gmm_prim_alloc_gmmsm_establish_req(sess_id);
OSMO_ASSERT(gmm_prim);
gmm_prim->gmmsm.establish_req.attach_type = OSMO_GPRS_GMM_ATTACH_TYPE_GPRS;
gmm_prim->gmmsm.establish_req.ptmsi = ptmsi;
gmm_prim->gmmsm.establish_req.ptmsi_sig = ptmsi_sig;
OSMO_STRLCPY_ARRAY(gmm_prim->gmmsm.establish_req.imsi, imsi);
OSMO_STRLCPY_ARRAY(gmm_prim->gmmsm.establish_req.imei, imei);
OSMO_STRLCPY_ARRAY(gmm_prim->gmmsm.establish_req.imeisv, imeisv);
rc = osmo_gprs_gmm_prim_upper_down(gmm_prim);
OSMO_ASSERT(rc == 0);
/* MS sends GMM Attach Req first since its not eyt attached */
/* Network answers with GMM Identity Req: */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_identity_req, sizeof(pdu_gmm_identity_req));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, MS answers GMM Identity Resp */
/* Network sends GMM Ciph Auth Req */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_auth_ciph_req, sizeof(pdu_gmm_auth_ciph_req));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, MS answers GMM Ciph Auth Resp */
/* Network sends GMM Attach Accept */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, (uint8_t *)pdu_gmm_att_acc, sizeof(pdu_gmm_att_acc));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, MS answers GMM Attach Complete */
/* As a result, MS submits GMMSM Establish.cnf */
/* SM layer submits Activate PDP Context Req: */
gmm_prim = osmo_gprs_gmm_prim_alloc_gmmsm_unitdata_req(sess_id, sm_pdu, sizeof(sm_pdu));
rc = osmo_gprs_gmm_prim_upper_down(gmm_prim);
OSMO_ASSERT(rc == 0);
/* As a result, GMM submits LLC-LL-UNITDATA.req */
/* Network answers with Activate PDP Ctx Accept, LLC submits the pdu up to GMM: */
llc_prim = gprs_llc_prim_alloc_ll_unitdata_ind(rand_tlli, OSMO_GPRS_LLC_SAPI_GMM, sm_pdu, sizeof(sm_pdu));
OSMO_ASSERT(llc_prim);
rc = osmo_gprs_gmm_prim_llc_lower_up(llc_prim);
OSMO_ASSERT(rc == 0);
/* As a result, GMM submits GMMSM-UNITDATA.ind */
/* DEACT: TODO */
printf("==== %s() [end] ====\n", __func__);
}
static const struct log_info_cat test_log_categories[] = { };
static const struct log_info test_log_info = {
.cat = test_log_categories,
.num_cat = ARRAY_SIZE(test_log_categories),
};
int main(int argc, char *argv[])
{
tall_ctx = talloc_named_const(NULL, 1, __FILE__);
osmo_init_logging2(tall_ctx, &test_log_info);
log_parse_category_mask(osmo_stderr_target, "DLGLOBAL,1:");
osmo_fsm_log_addr(false);
log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
log_set_print_category_hex(osmo_stderr_target, 0);
log_set_print_category(osmo_stderr_target, 1);
log_set_print_level(osmo_stderr_target, 1);
log_set_use_color(osmo_stderr_target, 0);
clock_override_enable(true);
test_gmm_prim_ms_gmmreg();
test_gmm_prim_ms_gmmsm();
talloc_free(tall_ctx);
}
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