diff options
Diffstat (limited to 'tests/emu/test_pdp_activation.cpp')
| -rw-r--r-- | tests/emu/test_pdp_activation.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/tests/emu/test_pdp_activation.cpp b/tests/emu/test_pdp_activation.cpp new file mode 100644 index 0000000..673874f --- /dev/null +++ b/tests/emu/test_pdp_activation.cpp @@ -0,0 +1,171 @@ +/* (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); + } +} |