| /* (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/>. |
| * |
| */ |
| |
| extern "C" { |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/backtrace.h> |
| #include <osmocom/gsm/gsm_utils.h> |
| } |
| |
| #include "openbsc_clone.h" |
| #include "gprs_tests.h" |
| |
| #include <gprs_bssgp_pcu.h> |
| |
| #include <stdint.h> |
| #include <string.h> |
| |
| static const uint8_t attach[] = { |
| 0x0e, 0x00, 0x26, |
| 0x01, 0xc0, 0x01, 0x08, 0x01, 0x02, 0xe5, 0x80, |
| 0x71, 0x0d, 0x01, 0x05, 0xf4, 0x02, 0x30, 0xef, |
| 0x0e, 0x09, 0xf1, 0x07, 0x00, 0x01, 0x00, 0x0b, |
| 0x34, 0xc7, 0x03, 0x2a, 0xa0, 0x42, 0x7c, 0xad, |
| 0xe1, 0x18, 0x0b, 0xf8, 0xef, 0xfc |
| }; |
| |
| static const uint8_t id_resp_imei[] = { |
| 0x0e, 0x00, 0x11, |
| 0x01, 0xc0, 0x05, 0x08, 0x16, 0x08, 0x3a, 0x49, |
| 0x50, 0x13, 0x28, 0x15, 0x80, 0x01, 0x21, 0x6c, |
| 0x22 |
| }; |
| |
| static const uint8_t id_resp_imsi[] = { |
| 0x0e, 0x00, 0x11, |
| 0x01, 0xc0, 0x09, 0x08, 0x16, 0x08, 0x99, 0x10, |
| 0x07, 0x00, 0x00, 0x00, 0x03, 0x49, 0xc7, 0x5b, |
| 0xb6 |
| }; |
| |
| static const uint8_t attach_complete[] = { |
| 0x0e, 0x00, 0x08, |
| 0x01, 0xc0, 0x0d, 0x08, 0x03, 0x55, 0x1c, 0xea |
| }; |
| |
| static const uint8_t pdp_context[] = { |
| 0x0e, 0x00, 0x5a, |
| 0x01, 0xc0, 0x11, 0x0a, 0x41, 0x05, 0x03, 0x0c, |
| 0x00, 0x00, 0x1f, 0x10, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x02, 0x01, 0x21, 0x28, |
| 0x12, 0x08, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, |
| 0x65, 0x74, 0x05, 0x65, 0x70, 0x6c, 0x75, 0x73, |
| 0x02, 0x64, 0x65, 0x27, 0x2a, 0x80, 0xc0, 0x23, |
| 0x13, 0x01, 0x00, 0x00, 0x13, 0x05, 0x65, 0x70, |
| 0x6c, 0x75, 0x73, 0x08, 0x69, 0x6e, 0x74, 0x65, |
| 0x72, 0x6e, 0x65, 0x74, 0x80, 0x21, 0x10, 0x01, |
| 0x00, 0x00, 0x10, 0x81, 0x06, 0x00, 0x00, 0x00, |
| 0x00, 0x83, 0x06, 0x00, 0x00, 0x00, 0x00, 0xcf, |
| 0x90, 0xcc |
| }; |
| |
| static const uint8_t qos_profile[] = { 0x0, 0x0, 0x04 }; |
| static uint32_t tlli = 0xadf11821; |
| |
| enum state { |
| Test_Start, |
| Test_IdRespIMEI, |
| Test_IdRespIMSI, |
| Test_AttachCompl, |
| Test_PDPAct, |
| Test_Done, |
| }; |
| |
| static enum state current_state = Test_Start; |
| |
| static void extract_tmsi_and_generate_tlli(struct msgb *msg, struct tlv_parsed *tp) |
| { |
| uint32_t tmsi; |
| struct bssgp_ud_hdr *budh; |
| struct gprs_llc_hdr_parsed hp; |
| struct tlv_parsed ack_tp; |
| int rc; |
| |
| gprs_llc_hdr_parse(&hp, TLVP_VAL(tp, BSSGP_IE_LLC_PDU), |
| TLVP_LEN(tp, BSSGP_IE_LLC_PDU)); |
| msgb_gmmh(msg) = (unsigned char *) hp.data; |
| |
| struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_gmmh(msg); |
| |
| OSMO_ASSERT(gh->msg_type == GSM48_MT_GMM_ATTACH_ACK); |
| struct gsm48_attach_ack *ack = (struct gsm48_attach_ack *) gh->data; |
| rc = tlv_parse(&ack_tp, &gsm48_gmm_att_tlvdef, ack->data, |
| (msg->data + msg->len) - ack->data, 0, 0); |
| |
| |
| OSMO_ASSERT(TLVP_PRESENT(&ack_tp, GSM48_IE_GMM_ALLOC_PTMSI)); |
| memcpy(&tmsi, TLVP_VAL(&ack_tp, GSM48_IE_GMM_ALLOC_PTMSI) + 1, 4); |
| tmsi = ntohl(tmsi); |
| tlli = gprs_tmsi2tlli(tmsi, TLLI_LOCAL); |
| printf("New TLLI(0x%08x) based on tmsi(0x%x)\n", tlli, tmsi); |
| } |
| |
| void test_pdp_activation_start(struct gprs_bssgp_pcu *pcu) |
| { |
| struct msgb *msg = create_msg(attach, ARRAY_SIZE(attach)); |
| bssgp_tx_ul_ud(pcu->bctx, tlli, qos_profile, msg); |
| current_state = Test_IdRespIMEI; |
| } |
| |
| |
| void test_pdp_activation_data(struct gprs_bssgp_pcu *pcu, struct msgb *msg, struct tlv_parsed *tp) |
| { |
| const uint8_t *data; |
| size_t len; |
| |
| switch (current_state) { |
| case Test_IdRespIMEI: |
| data = id_resp_imei; |
| len = ARRAY_SIZE(id_resp_imei); |
| current_state = Test_IdRespIMSI; |
| break; |
| case Test_IdRespIMSI: |
| data = id_resp_imsi; |
| len = ARRAY_SIZE(id_resp_imsi); |
| current_state = Test_AttachCompl; |
| break; |
| case Test_AttachCompl: |
| data = attach_complete; |
| len = ARRAY_SIZE(attach_complete); |
| extract_tmsi_and_generate_tlli(msg, tp); |
| current_state = Test_PDPAct; |
| break; |
| case Test_PDPAct: |
| printf("PDP context is active or not...\n"); |
| return; |
| break; |
| case Test_Done: |
| case Test_Start: /* fall through */ |
| return; |
| break; |
| default: |
| printf("Unknown state. %d\n", current_state); |
| return; |
| break; |
| }; |
| |
| struct msgb *out = create_msg(data, len); |
| bssgp_tx_ul_ud(pcu->bctx, tlli, qos_profile, out); |
| |
| /* send it after the PDP... */ |
| if (current_state == Test_PDPAct) { |
| out = create_msg(pdp_context, ARRAY_SIZE(pdp_context)); |
| bssgp_tx_ul_ud(pcu->bctx, tlli, qos_profile, out); |
| } |
| } |