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a9b1b116b3
A friend in the community was trying to connect an SMF made by another
manufacturer with an SBI interface and found a big problem with Open5GS.
All of the code in the part that generates the Resource URI
from HTTP.location is invalid.
For example, suppose we create a Resource URI with SMContext as below.
{apiRoot}/nsmf-pdusession/<apiVersion>/sm-contexts/{smContextRef}
In this case, Open5GS extracted the {smContextRef} part of the HTTP.location
and appended it to the beginning
{apiRoot}/nsmf-pdusession/<apiVersion>/sm-contexts/.
This implementation may not work properly if the apiRoot changes.
Consider a different port number as shown below.
<HTTP.location>
127.0.0.4:9999/nsmf-pdusession/v1/sm-contexts/1
The SMF may send an apiRoot to the AMF with a changed port number,
in which case the AMF must honor it.
Therefore, instead of extracting only the smContextRef from HTTP.location,
we modified it to use the whole thing to create a Resource URI.
We modified all NFs that use HTTP.location in the same way, not just SMFs.
135 lines
3.6 KiB
C
135 lines
3.6 KiB
C
/*
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* Copyright (C) 2019-2023 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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#ifndef AF_CONTEXT_H
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#define AF_CONTEXT_H
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#include "ogs-sbi.h"
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#include "ogs-app.h"
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#include "event.h"
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#include "local.h"
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#include "af-sm.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int __af_log_domain;
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#undef OGS_LOG_DOMAIN
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#define OGS_LOG_DOMAIN __af_log_domain
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typedef struct af_context_s {
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ogs_hash_t *supi_hash; /* hash table (SUPI) */
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ogs_hash_t *ipv4_hash; /* hash table (IPv4 Address) */
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ogs_hash_t *ipv6_hash; /* hash table (IPv6 Address) */
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ogs_hash_t *pcf_app_session_id_hash; /* hash table (AppSessionId) */
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ogs_list_t sess_list;
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} af_context_t;
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typedef struct af_sess_s af_sess_t;
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typedef struct af_sess_s {
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ogs_sbi_object_t sbi;
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uint64_t policyauthorization_features;
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#define PCF_APP_SESSION_ASSOCIATED(__sESS) \
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((__sESS) && ((__sESS)->app_session.pcf_id))
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#define PCF_APP_SESSION_CLEAR(__sESS) \
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do { \
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ogs_assert((__sESS)); \
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if ((__sESS)->app_session.pcf.resource_uri) \
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ogs_free((__sESS)->app_session.pcf.resource_uri); \
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(__sESS)->app_session.pcf.resource_uri = NULL; \
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if ((__sESS)->app_session.pcf.id) \
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ogs_free((__sESS)->app_session.pcf.id); \
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(__sESS)->app_session.pcf.id = NULL; \
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} while(0)
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#define PCF_APP_SESSION_STORE(__sESS, __rESOURCE_URI, __iD) \
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do { \
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ogs_assert((__sESS)); \
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ogs_assert((__rESOURCE_URI)); \
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ogs_assert((__iD)); \
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PCF_APP_SESSION_CLEAR(__sESS); \
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(__sESS)->app_session.pcf.resource_uri = ogs_strdup(__rESOURCE_URI); \
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ogs_assert((__sESS)->app_session.pcf.resource_uri); \
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(__sESS)->app_session.pcf.id = ogs_strdup(__iD); \
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ogs_assert((__sESS)->app_session.pcf.id); \
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} while(0)
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struct {
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struct {
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char *id;
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} af;
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struct {
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char *resource_uri;
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char *id;
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ogs_sbi_client_t *client;
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} pcf;
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} app_session;
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char *ipv4addr;
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char *ipv6addr;
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char *ipv6prefix;
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char *supi;
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char *gpsi;
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ogs_s_nssai_t s_nssai;
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char *dnn;
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struct {
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char *fqdn;
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int num_of_ip;
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struct {
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ogs_sockaddr_t *addr;
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ogs_sockaddr_t *addr6;
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bool is_port;
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int port;
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} ip[OGS_SBI_MAX_NUM_OF_IP_ADDRESS];
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ogs_sbi_client_t *client;
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} pcf;
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} af_sess_t;
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void af_context_init(void);
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void af_context_final(void);
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af_context_t *af_self(void);
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int af_context_parse_config(void);
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af_sess_t *af_sess_add_by_ue_address(ogs_ip_t *ue_address);
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void af_sess_remove(af_sess_t *sess);
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void af_sess_remove_all(void);
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af_sess_t *af_sess_find(uint32_t index);
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af_sess_t *af_sess_find_by_af_app_session_id(char *af_app_session_id);
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void af_sess_associate_pcf_client(af_sess_t *sess);
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#ifdef __cplusplus
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}
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#endif
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#endif /* AF_CONTEXT_H */
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