344 lines
13 KiB
C
344 lines
13 KiB
C
/*
|
|
* Copyright (C) 2019 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 "nudm-handler.h"
|
|
#include "pfcp-path.h"
|
|
|
|
bool smf_nudm_sdm_handle_get(smf_sess_t *sess, ogs_sbi_message_t *recvmsg)
|
|
{
|
|
char buf1[OGS_ADDRSTRLEN];
|
|
char buf2[OGS_ADDRSTRLEN];
|
|
|
|
smf_ue_t *smf_ue = NULL;
|
|
|
|
smf_bearer_t *qos_flow = NULL;
|
|
ogs_pfcp_gtpu_resource_t *resource = NULL;
|
|
ogs_pfcp_pdr_t *pdr = NULL;
|
|
ogs_pfcp_qer_t *qer = NULL;
|
|
|
|
ogs_sbi_server_t *server = NULL;
|
|
ogs_sbi_session_t *session = NULL;
|
|
|
|
ogs_sbi_message_t sendmsg;
|
|
ogs_sbi_header_t header;
|
|
ogs_sbi_response_t *response = NULL;
|
|
|
|
OpenAPI_sm_context_created_data_t SmContextCreatedData;
|
|
OpenAPI_session_management_subscription_data_t
|
|
*SessionManagementSubscriptionData = NULL;
|
|
OpenAPI_list_t *dnnConfigurationList = NULL;
|
|
OpenAPI_map_t *dnnConfigurationMap = NULL;
|
|
OpenAPI_dnn_configuration_t *dnnConfiguration = NULL;
|
|
OpenAPI_pdu_session_types_t *pduSessionTypeList = NULL;
|
|
OpenAPI_ssc_modes_t *sscModeList = NULL;
|
|
OpenAPI_subscribed_default_qos_t *_5gQoSProfile = NULL;
|
|
OpenAPI_ambr_t *sessionAmbr = NULL;
|
|
OpenAPI_list_t *staticIpAddress = NULL;
|
|
OpenAPI_ip_address_t *ipAddress = NULL;
|
|
OpenAPI_lnode_t *node = NULL, *node2 = NULL;
|
|
|
|
ogs_assert(sess);
|
|
session = sess->sbi.session;
|
|
ogs_assert(session);
|
|
smf_ue = sess->smf_ue;
|
|
ogs_assert(smf_ue);
|
|
server = ogs_sbi_session_get_server(session);
|
|
ogs_assert(server);
|
|
|
|
ogs_assert(recvmsg);
|
|
|
|
SessionManagementSubscriptionData =
|
|
recvmsg->SessionManagementSubscriptionData;
|
|
if (!SessionManagementSubscriptionData) {
|
|
ogs_error("[%s] No SessionManagementSubscriptionData", smf_ue->supi);
|
|
return false;
|
|
}
|
|
|
|
dnnConfigurationList =
|
|
SessionManagementSubscriptionData->dnn_configurations;
|
|
if (!dnnConfigurationList) {
|
|
ogs_error("[%s] No dnnConfigurations", smf_ue->supi);
|
|
return false;
|
|
}
|
|
|
|
OpenAPI_list_for_each(dnnConfigurationList, node) {
|
|
dnnConfigurationMap = node->data;
|
|
if (dnnConfigurationMap) {
|
|
if (!dnnConfigurationMap->key) {
|
|
ogs_error("No dnnConfigurationMap->key");
|
|
continue;
|
|
}
|
|
|
|
dnnConfiguration = dnnConfigurationMap->value;
|
|
if (!dnnConfiguration) {
|
|
ogs_error("No dnnConfiguration");
|
|
continue;
|
|
}
|
|
|
|
pduSessionTypeList = dnnConfiguration->pdu_session_types;
|
|
if (!pduSessionTypeList) {
|
|
ogs_error("No pduSessionTypes");
|
|
continue;
|
|
}
|
|
|
|
sscModeList = dnnConfiguration->ssc_modes;
|
|
if (!sscModeList) {
|
|
ogs_error("No sscModes");
|
|
continue;
|
|
}
|
|
|
|
if (sess->dnn && strcmp(sess->dnn, dnnConfigurationMap->key) != 0)
|
|
continue;
|
|
|
|
if (sess->ue_pdu_session_type) {
|
|
OpenAPI_list_for_each(
|
|
pduSessionTypeList->allowed_session_types, node2) {
|
|
if (node2->data) {
|
|
uint8_t allowed_session_type = (uintptr_t)node2->data;
|
|
if (sess->ue_pdu_session_type == allowed_session_type) {
|
|
sess->pdn.pdn_type = sess->ue_pdu_session_type;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!sess->pdn.pdn_type)
|
|
sess->pdn.pdn_type = pduSessionTypeList->default_session_type;
|
|
|
|
if (sess->ue_ssc_mode) {
|
|
OpenAPI_list_for_each(sscModeList->allowed_ssc_modes, node2) {
|
|
if (node2->data) {
|
|
uint8_t allowed_ssc_mode = (uintptr_t)node2->data;
|
|
if (sess->ue_ssc_mode == allowed_ssc_mode) {
|
|
sess->pdn.ssc_mode = sess->ue_ssc_mode;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
sess->pdn.ssc_mode = sscModeList->default_ssc_mode;
|
|
}
|
|
|
|
if (!sess->pdn.ssc_mode) {
|
|
ogs_error("SSCMode is not allowed");
|
|
continue;
|
|
}
|
|
|
|
sessionAmbr = dnnConfiguration->session_ambr;
|
|
if (!sessionAmbr) {
|
|
ogs_error("No Session-AMBR");
|
|
continue;
|
|
}
|
|
|
|
sess->pdn.ambr.uplink =
|
|
ogs_sbi_bitrate_from_string(sessionAmbr->uplink);
|
|
sess->pdn.ambr.downlink =
|
|
ogs_sbi_bitrate_from_string(sessionAmbr->downlink);
|
|
|
|
_5gQoSProfile = dnnConfiguration->_5g_qos_profile;
|
|
if (_5gQoSProfile) {
|
|
sess->pdn.qos.qci = _5gQoSProfile->_5qi;
|
|
sess->pdn.qos.arp.priority_level =
|
|
_5gQoSProfile->priority_level;
|
|
sess->pdn.qos.arp.pre_emption_capability =
|
|
OGS_PDN_PRE_EMPTION_CAPABILITY_DISABLED;
|
|
sess->pdn.qos.arp.pre_emption_vulnerability =
|
|
OGS_PDN_PRE_EMPTION_VULNERABILITY_DISABLED;
|
|
if (_5gQoSProfile->arp) {
|
|
sess->pdn.qos.arp.priority_level =
|
|
_5gQoSProfile->arp->priority_level;
|
|
if (_5gQoSProfile->arp->preempt_cap ==
|
|
OpenAPI_preemption_capability_MAY_PREEMPT)
|
|
sess->pdn.qos.arp.pre_emption_capability =
|
|
OGS_PDN_PRE_EMPTION_CAPABILITY_ENABLED;
|
|
if (_5gQoSProfile->arp->preempt_vuln ==
|
|
OpenAPI_preemption_vulnerability_PREEMPTABLE) {
|
|
sess->pdn.qos.arp.pre_emption_vulnerability =
|
|
OGS_PDN_PRE_EMPTION_VULNERABILITY_ENABLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
staticIpAddress = dnnConfiguration->static_ip_address;
|
|
if (staticIpAddress) {
|
|
OpenAPI_list_for_each(staticIpAddress, node2) {
|
|
if (node2->data) {
|
|
ipAddress = node2->data;
|
|
if (ipAddress) {
|
|
int rv;
|
|
bool ipv4 = false, ipv6 = false;
|
|
ogs_ipsubnet_t ipsub4, ipsub6;
|
|
if (ipAddress->ipv4_addr) {
|
|
rv = ogs_ipsubnet(&ipsub4,
|
|
ipAddress->ipv4_addr, NULL);
|
|
if (rv == OGS_OK) ipv4 = true;
|
|
}
|
|
if (ipAddress->ipv6_addr) {
|
|
rv = ogs_ipsubnet(&ipsub6,
|
|
ipAddress->ipv6_addr, NULL);
|
|
if (rv == OGS_OK) ipv6 = true;
|
|
}
|
|
|
|
if (ipv4 && ipv6) {
|
|
sess->pdn.ue_ip.addr = ipsub4.sub[0];
|
|
memcpy(sess->pdn.ue_ip.addr6,
|
|
ipsub6.sub, OGS_IPV6_LEN);
|
|
} else if (ipv4) {
|
|
sess->pdn.ue_ip.addr = ipsub4.sub[0];
|
|
} else if (ipv6) {
|
|
memcpy(sess->pdn.ue_ip.addr6,
|
|
ipsub6.sub, OGS_IPV6_LEN);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Succeeded to get PDU Session */
|
|
ogs_cpystrn(sess->pdn.dnn, dnnConfigurationMap->key,
|
|
ogs_min(strlen(dnnConfigurationMap->key),
|
|
OGS_MAX_DNN_LEN)+1);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!strlen(sess->pdn.dnn)) {
|
|
ogs_error("[%s] No dnnConfiguration", smf_ue->supi);
|
|
return false;
|
|
}
|
|
|
|
/* Select UPF based on UE Location Information */
|
|
smf_sess_select_upf(sess);
|
|
|
|
/* Check if selected UPF is associated with SMF */
|
|
ogs_assert(sess->pfcp_node);
|
|
if (!OGS_FSM_CHECK(&sess->pfcp_node->sm, smf_pfcp_state_associated)) {
|
|
ogs_error("[%s] No associated UPF", smf_ue->supi);
|
|
return false;
|
|
}
|
|
|
|
/* Setup GTP-U Tunnel */
|
|
resource = ogs_pfcp_gtpu_resource_find(
|
|
&sess->pfcp_node->gtpu_resource_list,
|
|
sess->pdn.dnn, OGS_PFCP_INTERFACE_ACCESS);
|
|
if (resource) {
|
|
ogs_pfcp_user_plane_ip_resource_info_to_sockaddr(&resource->info,
|
|
&sess->upf_n3_addr, &sess->upf_n3_addr6);
|
|
ogs_assert(sess->upf_n3_addr || sess->upf_n3_addr6);
|
|
if (resource->info.teidri)
|
|
sess->upf_n3_teid = UPF_GTPU_INDEX_TO_TEID(
|
|
sess->index, resource->info.teidri,
|
|
resource->info.teid_range);
|
|
else
|
|
sess->upf_n3_teid = sess->index;
|
|
} else {
|
|
if (sess->pfcp_node->addr.ogs_sa_family == AF_INET)
|
|
ogs_copyaddrinfo(&sess->upf_n3_addr, &sess->pfcp_node->addr);
|
|
else if (sess->pfcp_node->addr.ogs_sa_family == AF_INET6)
|
|
ogs_copyaddrinfo(&sess->upf_n3_addr6, &sess->pfcp_node->addr);
|
|
else
|
|
ogs_assert_if_reached();
|
|
ogs_assert(sess->upf_n3_addr || sess->upf_n3_addr6);
|
|
|
|
sess->upf_n3_teid = sess->index;
|
|
}
|
|
|
|
ogs_debug("UPF TEID:[0x%x], IPv4:[%s] IPv6:[%s]",
|
|
sess->upf_n3_teid,
|
|
sess->upf_n3_addr ? OGS_ADDR(sess->upf_n3_addr, buf1) : "",
|
|
sess->upf_n3_addr6 ? OGS_ADDR(sess->upf_n3_addr6, buf2) : "");
|
|
|
|
/* UE IP Address */
|
|
smf_sess_set_ue_ip(sess);
|
|
|
|
ogs_info("UE SUPI:[%s] DNN:[%s] IPv4:[%s] IPv6:[%s]",
|
|
smf_ue->supi, sess->pdn.dnn,
|
|
sess->ipv4 ? OGS_INET_NTOP(&sess->ipv4->addr, buf1) : "",
|
|
sess->ipv6 ? OGS_INET6_NTOP(&sess->ipv6->addr, buf2) : "");
|
|
|
|
/*********************************************************************
|
|
* Send HTTP_STATUS_CREATED(/nsmf-pdusession/v1/sm-context) to the AMF
|
|
*********************************************************************/
|
|
|
|
memset(&SmContextCreatedData, 0, sizeof(SmContextCreatedData));
|
|
|
|
memset(&sendmsg, 0, sizeof(sendmsg));
|
|
|
|
memset(&header, 0, sizeof(header));
|
|
header.service.name = (char *)OGS_SBI_SERVICE_NAME_NSMF_PDUSESSION;
|
|
header.api.version = (char *)OGS_SBI_API_V1;
|
|
header.resource.component[0] =
|
|
(char *)OGS_SBI_RESOURCE_NAME_SM_CONTEXTS;
|
|
header.resource.component[1] = sess->sm_context_ref;
|
|
|
|
sendmsg.http.location = ogs_sbi_server_uri(server, &header);
|
|
|
|
sendmsg.SmContextCreatedData = &SmContextCreatedData;
|
|
|
|
response = ogs_sbi_build_response(&sendmsg, OGS_SBI_HTTP_STATUS_CREATED);
|
|
ogs_assert(response);
|
|
ogs_sbi_server_send_response(session, response);
|
|
|
|
ogs_free(sendmsg.http.location);
|
|
|
|
|
|
/*********************************************************************
|
|
* Send PFCP Session Establiashment Request to the UPF
|
|
*********************************************************************/
|
|
|
|
/* Remove all previous QoS flow */
|
|
smf_bearer_remove_all(sess);
|
|
|
|
/* Setup Default QoS flow */
|
|
qos_flow = smf_qos_flow_add(sess);
|
|
ogs_assert(qos_flow);
|
|
|
|
/* Setup QER */
|
|
ogs_list_for_each(&qos_flow->pfcp.qer_list, qer) {
|
|
qer->mbr.uplink = sess->pdn.ambr.uplink;
|
|
qer->mbr.downlink = sess->pdn.ambr.downlink;
|
|
}
|
|
|
|
/* Setup PDR */
|
|
ogs_list_for_each(&qos_flow->pfcp.pdr_list, pdr) {
|
|
|
|
/* Set UE IP Address to the Default DL PDR */
|
|
if (pdr->src_if == OGS_PFCP_INTERFACE_CORE) {
|
|
ogs_pfcp_paa_to_ue_ip_addr(&sess->pdn.paa,
|
|
&pdr->ue_ip_addr, &pdr->ue_ip_addr_len);
|
|
pdr->ue_ip_addr.sd = OGS_PFCP_UE_IP_DST;
|
|
|
|
/* Set UPF-N3 TEID & ADDR to the Default UL PDR */
|
|
} else if (pdr->src_if == OGS_PFCP_INTERFACE_ACCESS) {
|
|
ogs_pfcp_sockaddr_to_f_teid(sess->upf_n3_addr, sess->upf_n3_addr6,
|
|
&pdr->f_teid, &pdr->f_teid_len);
|
|
pdr->f_teid.teid = sess->upf_n3_teid;
|
|
}
|
|
|
|
/* Default PDRs is set to lowest precedence(highest precedence value) */
|
|
pdr->precedence = 0xffffffff;
|
|
}
|
|
|
|
smf_5gc_pfcp_send_session_establishment_request(sess);
|
|
|
|
return true;
|
|
}
|