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-rw-r--r--tests/emu/test_pdp_activation.cpp171
1 files changed, 171 insertions, 0 deletions
diff --git a/tests/emu/test_pdp_activation.cpp b/tests/emu/test_pdp_activation.cpp
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+++ b/tests/emu/test_pdp_activation.cpp
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+/* (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);
+ }
+}