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open5gs/tests/common/gsm-build.c

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/*
* Copyright (C) 2019,2020 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* 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 General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "test-common.h"
ogs_pkbuf_t *testgsm_build_pdu_session_establishment_request(
test_sess_t *test_sess)
{
ogs_nas_5gs_message_t message;
ogs_nas_5gs_pdu_session_establishment_request_t
*pdu_session_establishment_request =
&message.gsm.pdu_session_establishment_request;
ogs_nas_integrity_protection_maximum_data_rate_t
*integrity_protection_maximum_data_rate = NULL;
ogs_nas_pdu_session_type_t *pdu_session_type = NULL;
ogs_nas_ssc_mode_t *ssc_mode = NULL;
ogs_nas_extended_protocol_configuration_options_t
*extended_protocol_configuration_options = NULL;
uint8_t ue_pco[35] =
"\x80\x80\x21\x10\x01\x00\x00\x10\x81\x06\x00\x00\x00\x00"
"\x83\x06\x00\x00\x00\x00\x00\x0c\x00\x00\x0d\x00\x00\x02\x00\x00"
"\x0a\x00\x00\x10\x00";
test_ue_t *test_ue = NULL;
ogs_pkbuf_t *pkbuf = NULL;
ogs_assert(test_sess);
test_ue = test_sess;
ogs_assert(test_ue);
integrity_protection_maximum_data_rate =
&pdu_session_establishment_request->
integrity_protection_maximum_data_rate;
pdu_session_type = &pdu_session_establishment_request->pdu_session_type;
ssc_mode = &pdu_session_establishment_request->ssc_mode;
extended_protocol_configuration_options =
&pdu_session_establishment_request->
extended_protocol_configuration_options;
memset(&message, 0, sizeof(message));
message.gsm.h.extended_protocol_discriminator =
OGS_NAS_EXTENDED_PROTOCOL_DISCRIMINATOR_5GSM;
message.gsm.h.pdu_session_identity = test_sess->psi;
message.gsm.h.procedure_transaction_identity = test_sess->pti;
message.gsm.h.message_type = OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST;
integrity_protection_maximum_data_rate->ul = 0xff;
integrity_protection_maximum_data_rate->dl = 0xff;
pdu_session_establishment_request->presencemask |=
OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_PDU_SESSION_TYPE_PRESENT;
pdu_session_type->value = test_sess->pdu_session_type;
if (test_sess->pdu_session_establishment_param.ssc_mode) {
pdu_session_establishment_request->presencemask |=
OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_SSC_MODE_PRESENT;
ssc_mode->value = OGS_NAS_SSC_MODE_1;
}
if (test_sess->pdu_session_establishment_param.epco) {
pdu_session_establishment_request->presencemask |=
OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_EXTENDED_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
extended_protocol_configuration_options->length = sizeof(ue_pco);
extended_protocol_configuration_options->buffer = ue_pco;
}
return ogs_nas_5gs_plain_encode(&message);
}
ogs_pkbuf_t *testgsm_build_pdu_session_modification_request(
test_bearer_t *qos_flow, uint8_t gsm_cause,
uint8_t qos_rule_code, uint8_t qos_flow_description_code)
{
int num_of_param, rv;
ogs_nas_5gs_message_t message;
ogs_nas_5gs_pdu_session_modification_request_t
*pdu_session_modification_request =
&message.gsm.pdu_session_modification_request;
ogs_nas_qos_rule_t qos_rule[OGS_NAS_MAX_NUM_OF_QOS_RULE];
ogs_nas_qos_flow_description_t
qos_flow_description[OGS_NAS_MAX_NUM_OF_QOS_FLOW_DESCRIPTION];
ogs_nas_qos_rules_t *requested_qos_rules =
&pdu_session_modification_request->requested_qos_rules;
ogs_nas_qos_flow_descriptions_t *requested_qos_flow_descriptions =
&pdu_session_modification_request->requested_qos_flow_descriptions;
test_ue_t *test_ue = NULL;
test_sess_t *test_sess = NULL;
ogs_pkbuf_t *pkbuf = NULL;
ogs_ipsubnet_t ipsubnet;
ogs_assert(qos_flow);
test_sess = qos_flow->sess;
ogs_assert(test_sess);
test_ue = test_sess;
ogs_assert(test_ue);
memset(&message, 0, sizeof(message));
message.gsm.h.extended_protocol_discriminator =
OGS_NAS_EXTENDED_PROTOCOL_DISCRIMINATOR_5GSM;
message.gsm.h.pdu_session_identity = test_sess->psi;
message.gsm.h.procedure_transaction_identity = test_sess->pti;
message.gsm.h.message_type = OGS_NAS_5GS_PDU_SESSION_MODIFICATION_REQUEST;
if (gsm_cause) {
pdu_session_modification_request->presencemask |=
OGS_NAS_5GS_PDU_SESSION_MODIFICATION_REQUEST_5GSM_CAUSE_PRESENT;
pdu_session_modification_request->gsm_cause = gsm_cause;
}
if (qos_rule_code) {
pdu_session_modification_request->presencemask |=
OGS_NAS_5GS_PDU_SESSION_MODIFICATION_REQUEST_REQUESTED_QOS_RULES_PRESENT;
memset(qos_rule, 0, sizeof(qos_rule));
qos_rule[0].identifier = qos_flow->qfi; /* Use QFI in Open5GS */
qos_rule[0].code = qos_rule_code;
if (qos_rule_code ==
OGS_NAS_QOS_CODE_MODIFY_EXISTING_QOS_RULE_AND_ADD_PACKET_FILTERS) {
qos_rule[0].DQR_bit = 0;
qos_rule[0].num_of_packet_filter = 1;
qos_rule[0].pf[0].direction = OGS_NAS_QOS_DIRECTION_UPLINK;
qos_rule[0].pf[0].identifier = 4;
qos_rule[0].pf[0].content.length = 18;
qos_rule[0].pf[0].content.num_of_component = 1;
qos_rule[0].pf[0].content.component[0].type =
OGS_PACKET_FILTER_IPV6_LOCAL_ADDRESS_PREFIX_LENGTH_TYPE;
rv = ogs_ipsubnet(&ipsubnet, "2001:db8:cafe::9", "120");
ogs_assert(rv == OGS_OK);
memcpy(qos_rule[0].pf[0].content.component[0].ipv6.addr,
ipsubnet.sub,
sizeof(qos_rule[0].pf[0].content.component[0].ipv6.addr));
qos_rule[0].pf[0].content.component[0].ipv6.prefixlen = 120;
} else if (qos_rule_code ==
OGS_NAS_QOS_CODE_MODIFY_EXISTING_QOS_RULE_AND_REPLACE_PACKET_FILTERS) {
qos_rule[0].DQR_bit = 0;
qos_rule[0].num_of_packet_filter = 1;
qos_rule[0].pf[0].direction = OGS_NAS_QOS_DIRECTION_DOWNLINK;
qos_rule[0].pf[0].identifier = 0;
qos_rule[0].pf[0].content.length = 9;
qos_rule[0].pf[0].content.num_of_component = 1;
qos_rule[0].pf[0].content.component[0].type =
OGS_PACKET_FILTER_IPV4_REMOTE_ADDRESS_TYPE;
rv = ogs_ipsubnet(&ipsubnet, "201.20.2.5", NULL);
ogs_assert(rv == OGS_OK);
qos_rule[0].pf[0].content.component[0].ipv4.addr = ipsubnet.sub[0];
qos_rule[0].pf[0].content.component[0].ipv4.mask = ipsubnet.mask[0];
} else if (qos_rule_code ==
OGS_NAS_QOS_CODE_MODIFY_EXISTING_QOS_RULE_AND_DELETE_PACKET_FILTERS) {
qos_rule[0].DQR_bit = 0;
qos_rule[0].num_of_packet_filter = 4;
qos_rule[0].pf[0].identifier = 0;
qos_rule[0].pf[1].identifier = 1;
qos_rule[0].pf[2].identifier = 2;
qos_rule[0].pf[3].identifier = 3;
} else {
ogs_fatal("Unknown qos_rule_code[%d]", qos_rule_code);
ogs_assert_if_reached();
}
qos_rule[0].precedence = 0x0f; /* lowest precedence */
qos_rule[0].flow.segregation = 0;
qos_rule[0].flow.identifier = qos_flow->qfi;
rv = ogs_nas_build_qos_rules(requested_qos_rules, qos_rule, 1);
ogs_assert(rv == OGS_OK);
}
if (qos_flow_description_code) {
pdu_session_modification_request->presencemask |=
OGS_NAS_5GS_PDU_SESSION_MODIFICATION_REQUEST_REQUESTED_QOS_FLOW_DESCRIPTIONS_PRESENT;
memset(&qos_flow_description, 0, sizeof(qos_flow_description));
qos_flow_description[0].identifier = qos_flow->qfi;
qos_flow_description[0].code = qos_flow_description_code;
num_of_param = 0;
if (qos_flow_description_code !=
OGS_NAS_DELETE_NEW_QOS_FLOW_DESCRIPTION) {
qos_flow_description[0].E_bit = 1;
qos_flow_description[0].param[num_of_param].identifier =
OGS_NAX_QOS_FLOW_PARAMETER_ID_5QI;
qos_flow_description[0].param[num_of_param].len =
sizeof(qos_flow_description[0].param[num_of_param].qos_index);
qos_flow_description[0].param[num_of_param].qos_index = 5;
num_of_param++;
qos_flow_description[0].param[num_of_param].identifier =
OGS_NAX_QOS_FLOW_PARAMETER_ID_GFBR_UPLINK;
qos_flow_description[0].param[num_of_param].len =
sizeof(qos_flow_description[0].param[num_of_param].br);
ogs_nas_bitrate_from_uint64(
&qos_flow_description[0].param[num_of_param].br,
32*1024);
num_of_param++;
qos_flow_description[0].param[num_of_param].identifier =
OGS_NAX_QOS_FLOW_PARAMETER_ID_GFBR_DOWNLINK;
qos_flow_description[0].param[num_of_param].len =
sizeof(qos_flow_description[0].param[num_of_param].br);
ogs_nas_bitrate_from_uint64(
&qos_flow_description[0].param[num_of_param].br,
48*1024);
num_of_param++;
qos_flow_description[0].param[num_of_param].identifier =
OGS_NAX_QOS_FLOW_PARAMETER_ID_MFBR_UPLINK;
qos_flow_description[0].param[num_of_param].len =
sizeof(qos_flow_description[0].param[num_of_param].br);
ogs_nas_bitrate_from_uint64(
&qos_flow_description[0].param[num_of_param].br,
16*1024);
num_of_param++;
qos_flow_description[0].param[num_of_param].identifier =
OGS_NAX_QOS_FLOW_PARAMETER_ID_MFBR_DOWNLINK;
qos_flow_description[0].param[num_of_param].len =
sizeof(qos_flow_description[0].param[num_of_param].br);
ogs_nas_bitrate_from_uint64(
&qos_flow_description[0].param[num_of_param].br,
64*1024);
num_of_param++;
}
qos_flow_description[0].num_of_parameter = num_of_param;
rv = ogs_nas_build_qos_flow_descriptions(
requested_qos_flow_descriptions, qos_flow_description, 1);
}
pkbuf = ogs_nas_5gs_plain_encode(&message);
ogs_free(requested_qos_rules->buffer);
ogs_free(requested_qos_flow_descriptions->buffer);
return pkbuf;
}
ogs_pkbuf_t *testgsm_build_pdu_session_modification_complete(
test_sess_t *test_sess)
{
ogs_nas_5gs_message_t message;
ogs_nas_5gs_pdu_session_modification_complete_t
*pdu_session_modification_complete =
&message.gsm.pdu_session_modification_complete;
test_ue_t *test_ue = NULL;
ogs_pkbuf_t *pkbuf = NULL;
ogs_assert(test_sess);
test_ue = test_sess;
ogs_assert(test_ue);
memset(&message, 0, sizeof(message));
message.gsm.h.extended_protocol_discriminator =
OGS_NAS_EXTENDED_PROTOCOL_DISCRIMINATOR_5GSM;
message.gsm.h.pdu_session_identity = test_sess->psi;
message.gsm.h.procedure_transaction_identity = test_sess->pti;
message.gsm.h.message_type = OGS_NAS_5GS_PDU_SESSION_MODIFICATION_COMPLETE;
return ogs_nas_5gs_plain_encode(&message);
}
ogs_pkbuf_t *testgsm_build_pdu_session_release_request(test_sess_t *test_sess)
{
ogs_nas_5gs_message_t message;
ogs_nas_5gs_pdu_session_release_request_t *pdu_session_release_request =
&message.gsm.pdu_session_release_request;
test_ue_t *test_ue = NULL;
ogs_pkbuf_t *pkbuf = NULL;
ogs_assert(test_sess);
test_ue = test_sess;
ogs_assert(test_ue);
memset(&message, 0, sizeof(message));
message.gsm.h.extended_protocol_discriminator =
OGS_NAS_EXTENDED_PROTOCOL_DISCRIMINATOR_5GSM;
message.gsm.h.pdu_session_identity = test_sess->psi;
message.gsm.h.procedure_transaction_identity = test_sess->pti;
message.gsm.h.message_type = OGS_NAS_5GS_PDU_SESSION_RELEASE_REQUEST;
return ogs_nas_5gs_plain_encode(&message);
}
ogs_pkbuf_t *testgsm_build_pdu_session_release_complete(test_sess_t *test_sess)
{
ogs_nas_5gs_message_t message;
ogs_nas_5gs_pdu_session_release_complete_t *pdu_session_release_complete =
&message.gsm.pdu_session_release_complete;
test_ue_t *test_ue = NULL;
ogs_pkbuf_t *pkbuf = NULL;
ogs_assert(test_sess);
test_ue = test_sess;
ogs_assert(test_ue);
memset(&message, 0, sizeof(message));
message.gsm.h.extended_protocol_discriminator =
OGS_NAS_EXTENDED_PROTOCOL_DISCRIMINATOR_5GSM;
message.gsm.h.pdu_session_identity = test_sess->psi;
message.gsm.h.procedure_transaction_identity = test_sess->pti;
message.gsm.h.message_type = OGS_NAS_5GS_PDU_SESSION_RELEASE_COMPLETE;
return ogs_nas_5gs_plain_encode(&message);
}
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