forked from acouzens/open5gs
181 lines
5.8 KiB
C
181 lines
5.8 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "npcf-handler.h"
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#include "sbi-path.h"
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#include "nas-path.h"
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int amf_npcf_am_policy_control_handle_create(
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amf_ue_t *amf_ue, ogs_sbi_message_t *recvmsg)
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{
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int r, rv;
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uint64_t supported_features;
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OpenAPI_policy_association_t *PolicyAssociation = NULL;
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OpenAPI_lnode_t *node = NULL;
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ogs_sbi_message_t message;
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ogs_sbi_header_t header;
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bool rc;
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ogs_sbi_client_t *client = NULL;
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OpenAPI_uri_scheme_e scheme = OpenAPI_uri_scheme_NULL;
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char *fqdn = NULL;
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uint16_t fqdn_port = 0;
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ogs_sockaddr_t *addr = NULL, *addr6 = NULL;
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if (recvmsg->res_status != OGS_SBI_HTTP_STATUS_CREATED) {
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ogs_error("[%s] HTTP response error [%d]",
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amf_ue->supi, recvmsg->res_status);
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r = nas_5gs_send_gmm_reject_from_sbi(amf_ue, recvmsg->res_status);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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if (!recvmsg->http.location) {
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ogs_error("[%s] No http.location", amf_ue->supi);
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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PolicyAssociation = recvmsg->PolicyAssociation;
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if (!PolicyAssociation) {
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ogs_error("No PolicyAssociation");
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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if (!PolicyAssociation->supp_feat) {
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ogs_error("No suppFeat");
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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memset(&header, 0, sizeof(header));
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header.uri = recvmsg->http.location;
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rv = ogs_sbi_parse_header(&message, &header);
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if (rv != OGS_OK) {
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ogs_error("[%s] Cannot parse http.location [%s]",
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amf_ue->supi, recvmsg->http.location);
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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if (!message.h.resource.component[1]) {
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ogs_error("[%s] No Assocation ID [%s]",
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amf_ue->supi, recvmsg->http.location);
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ogs_sbi_header_free(&header);
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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rc = ogs_sbi_getaddr_from_uri(
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&scheme, &fqdn, &fqdn_port, &addr, &addr6, header.uri);
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if (rc == false || scheme == OpenAPI_uri_scheme_NULL) {
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ogs_error("[%s] Invalid URI [%s]", amf_ue->supi, header.uri);
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ogs_sbi_header_free(&header);
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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return OGS_ERROR;
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}
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client = ogs_sbi_client_find(scheme, fqdn, fqdn_port, addr, addr6);
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if (!client) {
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ogs_debug("[%s] ogs_sbi_client_add()", amf_ue->supi);
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client = ogs_sbi_client_add(scheme, fqdn, fqdn_port, addr, addr6);
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if (!client) {
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ogs_error("[%s] ogs_sbi_client_add() failed", amf_ue->supi);
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ogs_sbi_header_free(&header);
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r = nas_5gs_send_gmm_reject_from_sbi(
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amf_ue, OGS_SBI_HTTP_STATUS_INTERNAL_SERVER_ERROR);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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ogs_free(fqdn);
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ogs_freeaddrinfo(addr);
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ogs_freeaddrinfo(addr6);
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return OGS_ERROR;
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}
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}
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OGS_SBI_SETUP_CLIENT(&amf_ue->policy_association, client);
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ogs_free(fqdn);
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ogs_freeaddrinfo(addr);
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ogs_freeaddrinfo(addr6);
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PCF_AM_POLICY_STORE(amf_ue, header.uri, message.h.resource.component[1]);
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/* SBI Features */
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supported_features = ogs_uint64_from_string(PolicyAssociation->supp_feat);
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amf_ue->am_policy_control_features &= supported_features;
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OpenAPI_list_for_each(PolicyAssociation->triggers, node) {
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if (node->data) {
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OpenAPI_request_trigger_e trigger = (intptr_t)node->data;
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OpenAPI_ambr_t *UeAmbr = NULL;
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switch (trigger) {
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case OpenAPI_request_trigger_UE_AMBR_CH:
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UeAmbr = PolicyAssociation->ue_ambr;
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if (UeAmbr) {
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amf_ue->ue_ambr.uplink =
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ogs_sbi_bitrate_from_string(UeAmbr->uplink);
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amf_ue->ue_ambr.downlink =
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ogs_sbi_bitrate_from_string(UeAmbr->downlink);
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}
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break;
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default:
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ogs_error("Not implemented [%d]", trigger);
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break;
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}
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}
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}
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ogs_sbi_header_free(&header);
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return OGS_OK;
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}
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