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open5gs/lib/sbi/context.c

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/*
* 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 "ogs-sbi.h"
int __ogs_sbi_domain;
static ogs_sbi_context_t self;
static int context_initialized = 0;
static OGS_POOL(nf_instance_pool, ogs_sbi_nf_instance_t);
static OGS_POOL(nf_service_pool, ogs_sbi_nf_service_t);
static OGS_POOL(xact_pool, ogs_sbi_xact_t);
static OGS_POOL(subscription_pool, ogs_sbi_subscription_t);
static OGS_POOL(smf_info_pool, ogs_sbi_smf_info_t);
static OGS_POOL(nf_info_pool, ogs_sbi_nf_info_t);
void ogs_sbi_context_init(void)
{
char nf_instance_id[OGS_UUID_FORMATTED_LENGTH + 1];
ogs_assert(context_initialized == 0);
/* Initialize SBI context */
memset(&self, 0, sizeof(ogs_sbi_context_t));
ogs_log_install_domain(&__ogs_sbi_domain, "sbi", ogs_core()->log.level);
ogs_sbi_message_init(ogs_app()->pool.message, ogs_app()->pool.message);
ogs_sbi_server_init(ogs_app()->pool.event, ogs_app()->pool.event);
ogs_sbi_client_init(ogs_app()->pool.event, ogs_app()->pool.event);
ogs_list_init(&self.nf_instance_list);
ogs_pool_init(&nf_instance_pool, ogs_app()->pool.nf);
ogs_pool_init(&nf_service_pool, ogs_app()->pool.nf_service);
ogs_pool_init(&xact_pool, ogs_app()->pool.xact);
ogs_list_init(&self.subscription_list);
ogs_pool_init(&subscription_pool, ogs_app()->pool.subscription);
ogs_pool_init(&smf_info_pool, ogs_app()->pool.nf);
ogs_pool_init(&nf_info_pool, ogs_app()->pool.nf * OGS_MAX_NUM_OF_NF_INFO);
/* Add SELF NF instance */
self.nf_instance = ogs_sbi_nf_instance_add();
ogs_assert(self.nf_instance);
ogs_uuid_get(&self.uuid);
ogs_uuid_format(nf_instance_id, &self.uuid);
ogs_sbi_nf_instance_set_id(self.nf_instance, nf_instance_id);
context_initialized = 1;
}
void ogs_sbi_context_final(void)
{
ogs_assert(context_initialized == 1);
ogs_sbi_subscription_remove_all();
ogs_pool_final(&subscription_pool);
ogs_pool_final(&xact_pool);
ogs_sbi_nf_instance_remove_all();
ogs_pool_final(&nf_instance_pool);
ogs_pool_final(&nf_service_pool);
ogs_pool_final(&smf_info_pool);
ogs_pool_final(&nf_info_pool);
ogs_sbi_client_final();
ogs_sbi_server_final();
ogs_sbi_message_final();
context_initialized = 0;
}
ogs_sbi_context_t *ogs_sbi_self(void)
{
return &self;
}
static int ogs_sbi_context_prepare(void)
{
self.sbi_port = OGS_SBI_HTTP_PORT;
#if ENABLE_ACCEPT_ENCODING
self.content_encoding = "gzip";
#endif
return OGS_OK;
}
static int ogs_sbi_context_validation(
const char *local, const char *nrf, const char *scp)
{
/* If SMF is only used in 4G EPC, no SBI interface is required. */
if (strcmp(local, "smf") != 0 &&
ogs_list_first(&self.server_list) == NULL) {
ogs_error("No %s.sbi: in '%s'", local, ogs_app()->file);
return OGS_ERROR;
}
ogs_assert(context_initialized == 1);
switch (self.discovery_config.delegated) {
case OGS_SBI_DISCOVERY_DELEGATED_AUTO:
if (strcmp(local, "nrf") != 0 && /* Skip NRF */
strcmp(local, "smf") != 0 && /* Skip SMF since SMF can run 4G */
ogs_sbi_self()->nrf_instance == NULL &&
ogs_sbi_self()->scp_instance == NULL) {
ogs_error("DELEGATED_AUTO - Both NRF and %s are unavailable",
strcmp(scp, "next_scp") == 0 ? "Next-hop SCP" : "SCP");
return OGS_ERROR;
}
break;
case OGS_SBI_DISCOVERY_DELEGATED_YES:
if (ogs_sbi_self()->scp_instance == NULL) {
ogs_error("DELEGATED_YES - no %s available",
strcmp(scp, "next_scp") == 0 ? "Next-hop SCP" : "SCP");
return OGS_ERROR;
}
break;
case OGS_SBI_DISCOVERY_DELEGATED_NO:
if (ogs_sbi_self()->nrf_instance == NULL) {
ogs_error("DELEGATED_NO - no NRF available");
return OGS_ERROR;
}
break;
default:
ogs_fatal("Invalid dicovery-config delegated [%d]",
self.discovery_config.delegated);
ogs_assert_if_reached();
}
return OGS_OK;
}
ogs_sbi_nf_instance_t *ogs_sbi_scp_instance(void)
{
return NULL;
}
int ogs_sbi_context_parse_config(
const char *local, const char *nrf, const char *scp)
{
int rv;
yaml_document_t *document = NULL;
ogs_yaml_iter_t root_iter;
document = ogs_app()->document;
ogs_assert(document);
rv = ogs_sbi_context_prepare();
if (rv != OGS_OK) return rv;
ogs_yaml_iter_init(&root_iter, document);
while (ogs_yaml_iter_next(&root_iter)) {
const char *root_key = ogs_yaml_iter_key(&root_iter);
ogs_assert(root_key);
if (local && !strcmp(root_key, local)) {
ogs_yaml_iter_t local_iter;
ogs_yaml_iter_recurse(&root_iter, &local_iter);
while (ogs_yaml_iter_next(&local_iter)) {
const char *local_key = ogs_yaml_iter_key(&local_iter);
ogs_assert(local_key);
if (!strcmp(local_key, "sbi")) {
ogs_list_t list, list6;
ogs_socknode_t *node = NULL, *node6 = NULL;
ogs_yaml_iter_t sbi_array, sbi_iter;
ogs_yaml_iter_recurse(&local_iter, &sbi_array);
do {
int i, family = AF_UNSPEC;
int num = 0;
const char *hostname[OGS_MAX_NUM_OF_HOSTNAME];
int num_of_advertise = 0;
const char *advertise[OGS_MAX_NUM_OF_HOSTNAME];
const char *key = NULL;
const char *pem = NULL;
uint16_t port = self.sbi_port;
const char *dev = NULL;
ogs_sockaddr_t *addr = NULL;
ogs_sockopt_t option;
bool is_option = false;
if (ogs_yaml_iter_type(&sbi_array) ==
YAML_MAPPING_NODE) {
memcpy(&sbi_iter, &sbi_array,
sizeof(ogs_yaml_iter_t));
} else if (ogs_yaml_iter_type(&sbi_array) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(&sbi_array))
break;
ogs_yaml_iter_recurse(&sbi_array, &sbi_iter);
} else if (ogs_yaml_iter_type(&sbi_array) ==
YAML_SCALAR_NODE) {
break;
} else
ogs_assert_if_reached();
while (ogs_yaml_iter_next(&sbi_iter)) {
const char *sbi_key =
ogs_yaml_iter_key(&sbi_iter);
ogs_assert(sbi_key);
if (!strcmp(sbi_key, "family")) {
const char *v = ogs_yaml_iter_value(&sbi_iter);
if (v) family = atoi(v);
if (family != AF_UNSPEC &&
family != AF_INET && family != AF_INET6) {
ogs_warn("Ignore family(%d) : "
"AF_UNSPEC(%d), "
"AF_INET(%d), AF_INET6(%d) ",
family, AF_UNSPEC, AF_INET, AF_INET6);
family = AF_UNSPEC;
}
} else if (!strcmp(sbi_key, "addr") ||
!strcmp(sbi_key, "name")) {
ogs_yaml_iter_t hostname_iter;
ogs_yaml_iter_recurse(&sbi_iter,
&hostname_iter);
ogs_assert(ogs_yaml_iter_type(&hostname_iter) !=
YAML_MAPPING_NODE);
do {
if (ogs_yaml_iter_type(&hostname_iter) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(
&hostname_iter))
break;
}
ogs_assert(num < OGS_MAX_NUM_OF_HOSTNAME);
hostname[num++] =
ogs_yaml_iter_value(&hostname_iter);
} while (
ogs_yaml_iter_type(&hostname_iter) ==
YAML_SEQUENCE_NODE);
} else if (!strcmp(sbi_key, "advertise")) {
ogs_yaml_iter_t advertise_iter;
ogs_yaml_iter_recurse(&sbi_iter,
&advertise_iter);
ogs_assert(ogs_yaml_iter_type(
&advertise_iter) != YAML_MAPPING_NODE);
do {
if (ogs_yaml_iter_type(&advertise_iter) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(
&advertise_iter))
break;
}
ogs_assert(num_of_advertise <
OGS_MAX_NUM_OF_HOSTNAME);
advertise[num_of_advertise++] =
ogs_yaml_iter_value(&advertise_iter);
} while (
ogs_yaml_iter_type(&advertise_iter) ==
YAML_SEQUENCE_NODE);
} else if (!strcmp(sbi_key, "port")) {
const char *v = ogs_yaml_iter_value(&sbi_iter);
if (v)
port = atoi(v);
} else if (!strcmp(sbi_key, "dev")) {
dev = ogs_yaml_iter_value(&sbi_iter);
} else if (!strcmp(sbi_key, "option")) {
rv = ogs_app_config_parse_sockopt(
&sbi_iter, &option);
if (rv != OGS_OK) return rv;
is_option = true;
} else if (!strcmp(sbi_key, "tls")) {
ogs_yaml_iter_t tls_iter;
ogs_yaml_iter_recurse(&sbi_iter, &tls_iter);
while (ogs_yaml_iter_next(&tls_iter)) {
const char *tls_key =
ogs_yaml_iter_key(&tls_iter);
ogs_assert(tls_key);
if (!strcmp(tls_key, "key")) {
key = ogs_yaml_iter_value(&tls_iter);
} else if (!strcmp(tls_key, "pem")) {
pem = ogs_yaml_iter_value(&tls_iter);
} else
ogs_warn("unknown key `%s`", tls_key);
}
} else
ogs_warn("unknown key `%s`", sbi_key);
}
addr = NULL;
for (i = 0; i < num; i++) {
rv = ogs_addaddrinfo(&addr,
family, hostname[i], port, 0);
ogs_assert(rv == OGS_OK);
}
ogs_list_init(&list);
ogs_list_init(&list6);
if (addr) {
if (ogs_app()->parameter.no_ipv4 == 0)
ogs_socknode_add(
&list, AF_INET, addr, NULL);
if (ogs_app()->parameter.no_ipv6 == 0)
ogs_socknode_add(
&list6, AF_INET6, addr, NULL);
ogs_freeaddrinfo(addr);
}
if (dev) {
rv = ogs_socknode_probe(
ogs_app()->parameter.no_ipv4 ? NULL : &list,
ogs_app()->parameter.no_ipv6 ? NULL : &list6,
dev, port, NULL);
ogs_assert(rv == OGS_OK);
}
addr = NULL;
for (i = 0; i < num_of_advertise; i++) {
rv = ogs_addaddrinfo(&addr,
family, advertise[i], port, 0);
ogs_assert(rv == OGS_OK);
}
node = ogs_list_first(&list);
if (node) {
ogs_sbi_server_t *server = ogs_sbi_server_add(
node->addr, is_option ? &option : NULL);
ogs_assert(server);
if (addr && ogs_app()->parameter.no_ipv4 == 0)
ogs_sbi_server_set_advertise(
server, AF_INET, addr);
if (key) server->tls.key = key;
if (pem) server->tls.pem = pem;
}
node6 = ogs_list_first(&list6);
if (node6) {
ogs_sbi_server_t *server = ogs_sbi_server_add(
node6->addr, is_option ? &option : NULL);
ogs_assert(server);
if (addr && ogs_app()->parameter.no_ipv6 == 0)
ogs_sbi_server_set_advertise(
server, AF_INET6, addr);
if (key) server->tls.key = key;
if (pem) server->tls.pem = pem;
}
if (addr)
ogs_freeaddrinfo(addr);
ogs_socknode_remove_all(&list);
ogs_socknode_remove_all(&list6);
} while (ogs_yaml_iter_type(&sbi_array) ==
YAML_SEQUENCE_NODE);
if (ogs_list_first(&self.server_list) == 0) {
ogs_list_init(&list);
ogs_list_init(&list6);
rv = ogs_socknode_probe(
ogs_app()->parameter.no_ipv4 ? NULL : &list,
ogs_app()->parameter.no_ipv6 ? NULL : &list6,
NULL, self.sbi_port, NULL);
ogs_assert(rv == OGS_OK);
node = ogs_list_first(&list);
if (node) ogs_sbi_server_add(node->addr, NULL);
node6 = ogs_list_first(&list6);
if (node6) ogs_sbi_server_add(node6->addr, NULL);
ogs_socknode_remove_all(&list);
ogs_socknode_remove_all(&list6);
}
} else if (!strcmp(local_key, "service_name")) {
ogs_yaml_iter_t service_name_iter;
ogs_yaml_iter_recurse(&local_iter, &service_name_iter);
ogs_assert(ogs_yaml_iter_type(
&service_name_iter) != YAML_MAPPING_NODE);
do {
const char *v = NULL;
if (ogs_yaml_iter_type(&service_name_iter) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(&service_name_iter))
break;
}
v = ogs_yaml_iter_value(&service_name_iter);
if (v && strlen(v))
self.service_name[self.num_of_service_name++] = v;
} while (ogs_yaml_iter_type(
&service_name_iter) == YAML_SEQUENCE_NODE);
} else if (!strcmp(local_key, "discovery")) {
ogs_yaml_iter_t discovery_iter;
ogs_yaml_iter_recurse(&local_iter, &discovery_iter);
while (ogs_yaml_iter_next(&discovery_iter)) {
const char *discovery_key =
ogs_yaml_iter_key(&discovery_iter);
ogs_assert(discovery_key);
if (!strcmp(discovery_key, "delegated")) {
const char *delegated =
ogs_yaml_iter_value(&discovery_iter);
if (!strcmp(delegated, "auto"))
self.discovery_config.delegated =
OGS_SBI_DISCOVERY_DELEGATED_AUTO;
else if (!strcmp(delegated, "yes"))
self.discovery_config.delegated =
OGS_SBI_DISCOVERY_DELEGATED_YES;
else if (!strcmp(delegated, "no"))
self.discovery_config.delegated =
OGS_SBI_DISCOVERY_DELEGATED_NO;
else
ogs_warn("unknown 'delegated' value `%s`",
delegated);
} else if (!strcmp(discovery_key, "option")) {
ogs_yaml_iter_t option_iter;
ogs_yaml_iter_recurse(
&discovery_iter, &option_iter);
while (ogs_yaml_iter_next(&option_iter)) {
const char *option_key =
ogs_yaml_iter_key(&option_iter);
ogs_assert(option_key);
if (!strcmp(option_key, "no_service_names")) {
self.discovery_config.no_service_names =
ogs_yaml_iter_bool(&option_iter);
} else if (!strcmp(option_key,
"prefer_requester_nf_instance_id")) {
self.discovery_config.
prefer_requester_nf_instance_id =
ogs_yaml_iter_bool(&option_iter);
} else
ogs_warn("unknown key `%s`", option_key);
}
} else
ogs_warn("unknown key `%s`", discovery_key);
}
}
}
} else if (nrf && !strcmp(root_key, nrf)) {
ogs_yaml_iter_t nrf_iter;
ogs_yaml_iter_recurse(&root_iter, &nrf_iter);
while (ogs_yaml_iter_next(&nrf_iter)) {
const char *nrf_key = ogs_yaml_iter_key(&nrf_iter);
ogs_assert(nrf_key);
if (!strcmp(nrf_key, "sbi")) {
ogs_yaml_iter_t sbi_array, sbi_iter;
ogs_yaml_iter_recurse(&nrf_iter, &sbi_array);
do {
ogs_sbi_nf_instance_t *nrf_instance = NULL;
ogs_sbi_client_t *client = NULL;
ogs_sockaddr_t *addr = NULL;
int family = AF_UNSPEC;
int i, num = 0;
const char *hostname[OGS_MAX_NUM_OF_HOSTNAME];
uint16_t port = self.sbi_port;
const char *key = NULL;
const char *pem = NULL;
if (ogs_yaml_iter_type(&sbi_array) ==
YAML_MAPPING_NODE) {
memcpy(&sbi_iter, &sbi_array,
sizeof(ogs_yaml_iter_t));
} else if (ogs_yaml_iter_type(&sbi_array) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(&sbi_array))
break;
ogs_yaml_iter_recurse(&sbi_array, &sbi_iter);
} else if (ogs_yaml_iter_type(&sbi_array) ==
YAML_SCALAR_NODE) {
break;
} else
ogs_assert_if_reached();
while (ogs_yaml_iter_next(&sbi_iter)) {
const char *sbi_key =
ogs_yaml_iter_key(&sbi_iter);
ogs_assert(sbi_key);
if (!strcmp(sbi_key, "family")) {
const char *v = ogs_yaml_iter_value(&sbi_iter);
if (v) family = atoi(v);
if (family != AF_UNSPEC &&
family != AF_INET && family != AF_INET6) {
ogs_warn("Ignore family(%d) : "
"AF_UNSPEC(%d), "
"AF_INET(%d), AF_INET6(%d) ",
family, AF_UNSPEC, AF_INET, AF_INET6);
family = AF_UNSPEC;
}
} else if (!strcmp(sbi_key, "addr") ||
!strcmp(sbi_key, "name")) {
ogs_yaml_iter_t hostname_iter;
ogs_yaml_iter_recurse(&sbi_iter,
&hostname_iter);
ogs_assert(ogs_yaml_iter_type(&hostname_iter) !=
YAML_MAPPING_NODE);
do {
if (ogs_yaml_iter_type(&hostname_iter) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(&hostname_iter))
break;
}
ogs_assert(num < OGS_MAX_NUM_OF_HOSTNAME);
hostname[num++] =
ogs_yaml_iter_value(&hostname_iter);
} while (
ogs_yaml_iter_type(&hostname_iter) ==
YAML_SEQUENCE_NODE);
} else if (!strcmp(sbi_key, "port")) {
const char *v = ogs_yaml_iter_value(&sbi_iter);
if (v) port = atoi(v);
} else if (!strcmp(sbi_key, "tls")) {
ogs_yaml_iter_t tls_iter;
ogs_yaml_iter_recurse(&sbi_iter, &tls_iter);
while (ogs_yaml_iter_next(&tls_iter)) {
const char *tls_key =
ogs_yaml_iter_key(&tls_iter);
ogs_assert(tls_key);
if (!strcmp(tls_key, "key")) {
key = ogs_yaml_iter_value(&tls_iter);
} else if (!strcmp(tls_key, "pem")) {
pem = ogs_yaml_iter_value(&tls_iter);
} else
ogs_warn("unknown key `%s`", tls_key);
}
} else if (!strcmp(sbi_key, "advertise")) {
/* Nothing in client */
} else
ogs_warn("unknown key `%s`", sbi_key);
}
addr = NULL;
for (i = 0; i < num; i++) {
rv = ogs_addaddrinfo(&addr,
family, hostname[i], port, 0);
ogs_assert(rv == OGS_OK);
}
ogs_filter_ip_version(&addr,
ogs_app()->parameter.no_ipv4,
ogs_app()->parameter.no_ipv6,
ogs_app()->parameter.prefer_ipv4);
if (addr == NULL) continue;
client = ogs_sbi_client_add(addr);
ogs_assert(client);
ogs_sbi_self()->nrf_instance =
nrf_instance = ogs_sbi_nf_instance_add();
ogs_assert(nrf_instance);
ogs_sbi_nf_instance_set_type(
nrf_instance, OpenAPI_nf_type_NRF);
OGS_SBI_SETUP_CLIENT(nrf_instance, client);
if (key) client->tls.key = key;
if (pem) client->tls.pem = pem;
ogs_freeaddrinfo(addr);
} while (ogs_yaml_iter_type(&sbi_array) ==
YAML_SEQUENCE_NODE);
}
}
} else if (scp && !strcmp(root_key, scp)) {
ogs_yaml_iter_t scp_iter;
ogs_yaml_iter_recurse(&root_iter, &scp_iter);
while (ogs_yaml_iter_next(&scp_iter)) {
const char *scp_key = ogs_yaml_iter_key(&scp_iter);
ogs_assert(scp_key);
if (!strcmp(scp_key, "sbi")) {
ogs_yaml_iter_t sbi_array, sbi_iter;
ogs_yaml_iter_recurse(&scp_iter, &sbi_array);
do {
ogs_sbi_nf_instance_t *scp_instance = NULL;
ogs_sbi_client_t *client = NULL;
ogs_sockaddr_t *addr = NULL;
int family = AF_UNSPEC;
int i, num = 0;
const char *hostname[OGS_MAX_NUM_OF_HOSTNAME];
uint16_t port = self.sbi_port;
const char *key = NULL;
const char *pem = NULL;
if (ogs_yaml_iter_type(&sbi_array) ==
YAML_MAPPING_NODE) {
memcpy(&sbi_iter, &sbi_array,
sizeof(ogs_yaml_iter_t));
} else if (ogs_yaml_iter_type(&sbi_array) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(&sbi_array))
break;
ogs_yaml_iter_recurse(&sbi_array, &sbi_iter);
} else if (ogs_yaml_iter_type(&sbi_array) ==
YAML_SCALAR_NODE) {
break;
} else
ogs_assert_if_reached();
while (ogs_yaml_iter_next(&sbi_iter)) {
const char *sbi_key =
ogs_yaml_iter_key(&sbi_iter);
ogs_assert(sbi_key);
if (!strcmp(sbi_key, "family")) {
const char *v = ogs_yaml_iter_value(&sbi_iter);
if (v) family = atoi(v);
if (family != AF_UNSPEC &&
family != AF_INET && family != AF_INET6) {
ogs_warn("Ignore family(%d) : "
"AF_UNSPEC(%d), "
"AF_INET(%d), AF_INET6(%d) ",
family, AF_UNSPEC, AF_INET, AF_INET6);
family = AF_UNSPEC;
}
} else if (!strcmp(sbi_key, "addr") ||
!strcmp(sbi_key, "name")) {
ogs_yaml_iter_t hostname_iter;
ogs_yaml_iter_recurse(&sbi_iter,
&hostname_iter);
ogs_assert(ogs_yaml_iter_type(&hostname_iter) !=
YAML_MAPPING_NODE);
do {
if (ogs_yaml_iter_type(&hostname_iter) ==
YAML_SEQUENCE_NODE) {
if (!ogs_yaml_iter_next(&hostname_iter))
break;
}
ogs_assert(num < OGS_MAX_NUM_OF_HOSTNAME);
hostname[num++] =
ogs_yaml_iter_value(&hostname_iter);
} while (
ogs_yaml_iter_type(&hostname_iter) ==
YAML_SEQUENCE_NODE);
} else if (!strcmp(sbi_key, "port")) {
const char *v = ogs_yaml_iter_value(&sbi_iter);
if (v) port = atoi(v);
} else if (!strcmp(sbi_key, "tls")) {
ogs_yaml_iter_t tls_iter;
ogs_yaml_iter_recurse(&sbi_iter, &tls_iter);
while (ogs_yaml_iter_next(&tls_iter)) {
const char *tls_key =
ogs_yaml_iter_key(&tls_iter);
ogs_assert(tls_key);
if (!strcmp(tls_key, "key")) {
key = ogs_yaml_iter_value(&tls_iter);
} else if (!strcmp(tls_key, "pem")) {
pem = ogs_yaml_iter_value(&tls_iter);
} else
ogs_warn("unknown key `%s`", tls_key);
}
} else if (!strcmp(sbi_key, "advertise")) {
/* Nothing in client */
} else
ogs_warn("unknown key `%s`", sbi_key);
}
addr = NULL;
for (i = 0; i < num; i++) {
rv = ogs_addaddrinfo(&addr,
family, hostname[i], port, 0);
ogs_assert(rv == OGS_OK);
}
ogs_filter_ip_version(&addr,
ogs_app()->parameter.no_ipv4,
ogs_app()->parameter.no_ipv6,
ogs_app()->parameter.prefer_ipv4);
if (addr == NULL) continue;
client = ogs_sbi_client_add(addr);
ogs_assert(client);
ogs_sbi_self()->scp_instance =
scp_instance = ogs_sbi_nf_instance_add();
ogs_assert(scp_instance);
ogs_sbi_nf_instance_set_type(
scp_instance, OpenAPI_nf_type_SCP);
OGS_SBI_SETUP_CLIENT(scp_instance, client);
if (key) client->tls.key = key;
if (pem) client->tls.pem = pem;
ogs_freeaddrinfo(addr);
} while (ogs_yaml_iter_type(&sbi_array) ==
YAML_SEQUENCE_NODE);
}
}
}
}
rv = ogs_sbi_context_validation(local, nrf, scp);
if (rv != OGS_OK) return rv;
return OGS_OK;
}
void ogs_sbi_add_to_be_notified_nf_type(OpenAPI_nf_type_e nf_type)
{
ogs_assert(nf_type);
if (self.num_of_to_be_notified_nf_type < OGS_SBI_MAX_NUM_OF_NF_TYPE) {
self.to_be_notified_nf_type[self.num_of_to_be_notified_nf_type] =
nf_type;
self.num_of_to_be_notified_nf_type++;
}
}
bool ogs_sbi_nf_service_is_available(const char *name)
{
int i;
ogs_assert(name);
if (self.num_of_service_name == 0)
/* If no service name is configured, all services are available */
return true;
for (i = 0; i < self.num_of_service_name; i++)
/* Only services in the configuration are available */
if (strcmp(self.service_name[i], name) == 0)
return true;
return false;
}
ogs_sbi_nf_instance_t *ogs_sbi_nf_instance_add(void)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
ogs_pool_alloc(&nf_instance_pool, &nf_instance);
ogs_assert(nf_instance);
memset(nf_instance, 0, sizeof(ogs_sbi_nf_instance_t));
ogs_debug("ogs_sbi_nf_instance_add()");
OGS_OBJECT_REF(nf_instance);
nf_instance->time.heartbeat_interval =
ogs_app()->time.nf_instance.heartbeat_interval;
nf_instance->priority = OGS_SBI_DEFAULT_PRIORITY;
nf_instance->capacity = OGS_SBI_DEFAULT_CAPACITY;
nf_instance->load = OGS_SBI_DEFAULT_LOAD;
ogs_list_add(&ogs_sbi_self()->nf_instance_list, nf_instance);
return nf_instance;
}
void ogs_sbi_nf_instance_set_id(ogs_sbi_nf_instance_t *nf_instance, char *id)
{
ogs_assert(nf_instance);
ogs_assert(id);
nf_instance->id = ogs_strdup(id);
ogs_assert(nf_instance->id);
}
void ogs_sbi_nf_instance_set_type(
ogs_sbi_nf_instance_t *nf_instance, OpenAPI_nf_type_e nf_type)
{
ogs_assert(nf_instance);
ogs_assert(nf_type);
nf_instance->nf_type = nf_type;
}
void ogs_sbi_nf_instance_set_status(
ogs_sbi_nf_instance_t *nf_instance, OpenAPI_nf_status_e nf_status)
{
ogs_assert(nf_instance);
ogs_assert(nf_status);
nf_instance->nf_status = nf_status;
}
void ogs_sbi_nf_instance_add_allowed_nf_type(
ogs_sbi_nf_instance_t *nf_instance, OpenAPI_nf_type_e allowed_nf_type)
{
ogs_assert(nf_instance);
ogs_assert(allowed_nf_type);
if (nf_instance->num_of_allowed_nf_type < OGS_SBI_MAX_NUM_OF_NF_TYPE) {
nf_instance->allowed_nf_type[nf_instance->num_of_allowed_nf_type] =
allowed_nf_type;
nf_instance->num_of_allowed_nf_type++;
}
}
void ogs_sbi_nf_instance_clear(ogs_sbi_nf_instance_t *nf_instance)
{
int i;
ogs_assert(nf_instance);
if (nf_instance->fqdn)
ogs_free(nf_instance->fqdn);
nf_instance->fqdn = NULL;
for (i = 0; i < nf_instance->num_of_ipv4; i++) {
if (nf_instance->ipv4[i])
ogs_freeaddrinfo(nf_instance->ipv4[i]);
}
nf_instance->num_of_ipv4 = 0;
for (i = 0; i < nf_instance->num_of_ipv6; i++) {
if (nf_instance->ipv6[i])
ogs_freeaddrinfo(nf_instance->ipv6[i]);
}
nf_instance->num_of_ipv6 = 0;
nf_instance->num_of_allowed_nf_type = 0;
}
void ogs_sbi_nf_instance_remove(ogs_sbi_nf_instance_t *nf_instance)
{
ogs_assert(nf_instance);
ogs_debug("ogs_sbi_nf_instance_remove()");
if (OGS_OBJECT_IS_REF(nf_instance)) {
OGS_OBJECT_UNREF(nf_instance);
return;
}
ogs_list_remove(&ogs_sbi_self()->nf_instance_list, nf_instance);
ogs_sbi_nf_info_remove_all(&nf_instance->nf_info_list);
ogs_sbi_nf_service_remove_all(nf_instance);
ogs_sbi_nf_instance_clear(nf_instance);
if (nf_instance->id) {
ogs_sbi_subscription_remove_all_by_nf_instance_id(nf_instance->id);
ogs_free(nf_instance->id);
}
if (nf_instance->client)
ogs_sbi_client_remove(nf_instance->client);
ogs_pool_free(&nf_instance_pool, nf_instance);
}
void ogs_sbi_nf_instance_remove_all(void)
{
ogs_sbi_nf_instance_t *nf_instance = NULL, *next_nf_instance = NULL;
ogs_list_for_each_safe(
&ogs_sbi_self()->nf_instance_list, next_nf_instance, nf_instance)
ogs_sbi_nf_instance_remove(nf_instance);
}
ogs_sbi_nf_instance_t *ogs_sbi_nf_instance_find(char *id)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
ogs_assert(id);
ogs_list_for_each(&ogs_sbi_self()->nf_instance_list, nf_instance) {
if (nf_instance->id && strcmp(nf_instance->id, id) == 0)
break;
}
return nf_instance;
}
ogs_sbi_nf_instance_t *ogs_sbi_nf_instance_find_by_discovery_param(
OpenAPI_nf_type_e target_nf_type,
ogs_sbi_discovery_option_t *discovery_option)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
ogs_assert(target_nf_type);
ogs_list_for_each(&ogs_sbi_self()->nf_instance_list, nf_instance) {
if (ogs_sbi_discovery_param_is_matched(
nf_instance, target_nf_type, discovery_option) == false)
continue;
return nf_instance;
}
return NULL;
}
ogs_sbi_nf_instance_t *ogs_sbi_nf_instance_find_by_service_type(
ogs_sbi_service_type_e service_type)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
ogs_sbi_discovery_option_t *discovery_option = NULL;
OpenAPI_nf_type_e target_nf_type = OpenAPI_nf_type_NULL;
char *service_name = NULL;
ogs_assert(service_type);
target_nf_type = ogs_sbi_service_type_to_nf_type(service_type);
ogs_assert(target_nf_type);
service_name = (char *)ogs_sbi_service_type_to_name(service_type);
ogs_assert(service_name);
discovery_option = ogs_sbi_discovery_option_new();
ogs_assert(discovery_option);
ogs_sbi_discovery_option_add_service_names(discovery_option, service_name);
nf_instance = ogs_sbi_nf_instance_find_by_discovery_param(
target_nf_type, discovery_option);
ogs_sbi_discovery_option_free(discovery_option);
return nf_instance;
}
bool ogs_sbi_nf_instance_maximum_number_is_reached()
{
return nf_instance_pool.avail <= 0;
}
ogs_sbi_nf_service_t *ogs_sbi_nf_service_add(
ogs_sbi_nf_instance_t *nf_instance,
char *id, const char *name, OpenAPI_uri_scheme_e scheme)
{
ogs_sbi_nf_service_t *nf_service = NULL;
ogs_assert(nf_instance);
ogs_assert(id);
ogs_assert(name);
ogs_pool_alloc(&nf_service_pool, &nf_service);
ogs_assert(nf_service);
memset(nf_service, 0, sizeof(ogs_sbi_nf_service_t));
nf_service->id = ogs_strdup(id);
ogs_assert(nf_service->id);
nf_service->name = ogs_strdup(name);
ogs_assert(nf_service->name);
nf_service->scheme = scheme;
nf_service->status = OpenAPI_nf_service_status_REGISTERED;
nf_service->priority = OGS_SBI_DEFAULT_PRIORITY;
nf_service->capacity = OGS_SBI_DEFAULT_CAPACITY;
nf_service->load = OGS_SBI_DEFAULT_LOAD;
nf_service->nf_instance = nf_instance;
ogs_list_add(&nf_instance->nf_service_list, nf_service);
return nf_service;
}
void ogs_sbi_nf_service_add_version(ogs_sbi_nf_service_t *nf_service,
const char *in_uri, const char *full, const char *expiry)
{
ogs_assert(nf_service);
ogs_assert(in_uri);
ogs_assert(full);
if (nf_service->num_of_version < OGS_SBI_MAX_NUM_OF_SERVICE_VERSION) {
nf_service->version[nf_service->num_of_version].in_uri =
ogs_strdup(in_uri);
ogs_assert(nf_service->version[nf_service->num_of_version].in_uri);
nf_service->version[nf_service->num_of_version].full =
ogs_strdup(full);
ogs_assert(nf_service->version[nf_service->num_of_version].full);
if (expiry) {
nf_service->version[nf_service->num_of_version].expiry =
ogs_strdup(expiry);
ogs_assert(
nf_service->version[nf_service->num_of_version].expiry);
}
nf_service->num_of_version++;
}
}
void ogs_sbi_nf_service_add_allowed_nf_type(
ogs_sbi_nf_service_t *nf_service, OpenAPI_nf_type_e allowed_nf_type)
{
ogs_assert(nf_service);
ogs_assert(allowed_nf_type);
if (nf_service->num_of_allowed_nf_type < OGS_SBI_MAX_NUM_OF_NF_TYPE) {
nf_service->allowed_nf_type[nf_service->num_of_allowed_nf_type] =
allowed_nf_type;
nf_service->num_of_allowed_nf_type++;
}
}
void ogs_sbi_nf_service_clear(ogs_sbi_nf_service_t *nf_service)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
int i;
ogs_assert(nf_service);
nf_instance = nf_service->nf_instance;
ogs_assert(nf_instance);
if (nf_service->fqdn)
ogs_free(nf_service->fqdn);
nf_service->fqdn = NULL;
for (i = 0; i < nf_service->num_of_version; i++) {
if (nf_service->version[i].in_uri)
ogs_free(nf_service->version[i].in_uri);
if (nf_service->version[i].full)
ogs_free(nf_service->version[i].full);
if (nf_service->version[i].expiry)
ogs_free(nf_service->version[i].expiry);
}
nf_service->num_of_version = 0;
for (i = 0; i < nf_service->num_of_addr; i++) {
if (nf_service->addr[i].ipv4)
ogs_freeaddrinfo(nf_service->addr[i].ipv4);
if (nf_service->addr[i].ipv6)
ogs_freeaddrinfo(nf_service->addr[i].ipv6);
}
nf_service->num_of_addr = 0;
nf_service->num_of_allowed_nf_type = 0;
}
void ogs_sbi_nf_service_remove(ogs_sbi_nf_service_t *nf_service)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
ogs_assert(nf_service);
nf_instance = nf_service->nf_instance;
ogs_assert(nf_instance);
ogs_list_remove(&nf_instance->nf_service_list, nf_service);
ogs_assert(nf_service->id);
ogs_free(nf_service->id);
ogs_assert(nf_service->name);
ogs_free(nf_service->name);
ogs_sbi_nf_service_clear(nf_service);
if (nf_service->client)
ogs_sbi_client_remove(nf_service->client);
ogs_pool_free(&nf_service_pool, nf_service);
}
void ogs_sbi_nf_service_remove_all(ogs_sbi_nf_instance_t *nf_instance)
{
ogs_sbi_nf_service_t *nf_service = NULL, *next_nf_service = NULL;
ogs_assert(nf_instance);
ogs_list_for_each_safe(&nf_instance->nf_service_list,
next_nf_service, nf_service)
ogs_sbi_nf_service_remove(nf_service);
}
ogs_sbi_nf_service_t *ogs_sbi_nf_service_find_by_id(
ogs_sbi_nf_instance_t *nf_instance, char *id)
{
ogs_sbi_nf_service_t *nf_service = NULL;
ogs_assert(nf_instance);
ogs_assert(id);
ogs_list_for_each(&nf_instance->nf_service_list, nf_service) {
ogs_assert(nf_service->id);
if (strcmp(nf_service->id, id) == 0)
break;
}
return nf_service;
}
ogs_sbi_nf_service_t *ogs_sbi_nf_service_find_by_name(
ogs_sbi_nf_instance_t *nf_instance, char *name)
{
ogs_sbi_nf_service_t *nf_service = NULL;
ogs_assert(nf_instance);
ogs_assert(name);
ogs_list_for_each(&nf_instance->nf_service_list, nf_service) {
ogs_assert(nf_service->name);
if (strcmp(nf_service->name, name) == 0)
return nf_service;
}
return NULL;
}
ogs_sbi_nf_info_t *ogs_sbi_nf_info_add(
ogs_list_t *list, OpenAPI_nf_type_e nf_type)
{
ogs_sbi_nf_info_t *nf_info = NULL;
ogs_assert(list);
ogs_assert(nf_type);
ogs_pool_alloc(&nf_info_pool, &nf_info);
ogs_assert(nf_info);
memset(nf_info, 0, sizeof(*nf_info));
nf_info->nf_type = nf_type;
ogs_list_add(list, nf_info);
return nf_info;
}
static void smf_info_free(ogs_sbi_smf_info_t *smf_info)
{
int i, j;
ogs_assert(smf_info);
for (i = 0; i < smf_info->num_of_slice; i++) {
for (j = 0; j < smf_info->slice[i].num_of_dnn; j++)
ogs_free(smf_info->slice[i].dnn[j]);
smf_info->slice[i].num_of_dnn = 0;
}
smf_info->num_of_slice = 0;
smf_info->num_of_nr_tai = 0;
smf_info->num_of_nr_tai_range = 0;
ogs_pool_free(&smf_info_pool, smf_info);
}
void ogs_sbi_nf_info_remove(ogs_list_t *list, ogs_sbi_nf_info_t *nf_info)
{
ogs_assert(list);
ogs_assert(nf_info);
ogs_list_remove(list, nf_info);
switch(nf_info->nf_type) {
case OpenAPI_nf_type_SMF:
smf_info_free(&nf_info->smf);
break;
default:
ogs_fatal("Not implemented NF-type[%s]",
OpenAPI_nf_type_ToString(nf_info->nf_type));
ogs_assert_if_reached();
}
ogs_pool_free(&nf_info_pool, nf_info);
}
void ogs_sbi_nf_info_remove_all(ogs_list_t *list)
{
ogs_sbi_nf_info_t *nf_info = NULL, *next_nf_info = NULL;
ogs_assert(list);
ogs_list_for_each_safe(list, next_nf_info, nf_info)
ogs_sbi_nf_info_remove(list, nf_info);
}
ogs_sbi_nf_info_t *ogs_sbi_nf_info_find(
ogs_list_t *list, OpenAPI_nf_type_e nf_type)
{
ogs_sbi_nf_info_t *nf_info = NULL;
ogs_assert(list);
ogs_assert(nf_type);
ogs_list_for_each(list, nf_info) {
if (nf_info->nf_type == nf_type)
return nf_info;
}
return NULL;
}
void ogs_sbi_nf_instance_build_default(
ogs_sbi_nf_instance_t *nf_instance, OpenAPI_nf_type_e nf_type)
{
ogs_sbi_server_t *server = NULL;
char *hostname = NULL;
ogs_assert(nf_instance);
ogs_assert(nf_type);
ogs_sbi_nf_instance_set_type(nf_instance, nf_type);
ogs_sbi_nf_instance_set_status(nf_instance, OpenAPI_nf_status_REGISTERED);
hostname = NULL;
ogs_list_for_each(&ogs_sbi_self()->server_list, server) {
ogs_sockaddr_t *advertise = NULL;
advertise = server->advertise;
if (!advertise)
advertise = server->node.addr;
ogs_assert(advertise);
/* First FQDN is selected */
if (!hostname) {
hostname = ogs_gethostname(advertise);
if (hostname)
continue;
}
if (nf_instance->num_of_ipv4 < OGS_SBI_MAX_NUM_OF_IP_ADDRESS) {
ogs_sockaddr_t *addr = NULL;
ogs_assert(OGS_OK == ogs_copyaddrinfo(&addr, advertise));
ogs_assert(addr);
if (addr->ogs_sa_family == AF_INET) {
nf_instance->ipv4[nf_instance->num_of_ipv4] = addr;
nf_instance->num_of_ipv4++;
} else if (addr->ogs_sa_family == AF_INET6) {
nf_instance->ipv6[nf_instance->num_of_ipv6] = addr;
nf_instance->num_of_ipv6++;
} else
ogs_assert_if_reached();
}
}
if (hostname) {
nf_instance->fqdn = ogs_strdup(hostname);
ogs_assert(nf_instance->fqdn);
}
nf_instance->time.heartbeat_interval =
ogs_app()->time.nf_instance.heartbeat_interval;
}
ogs_sbi_nf_service_t *ogs_sbi_nf_service_build_default(
ogs_sbi_nf_instance_t *nf_instance, const char *name)
{
ogs_sbi_server_t *server = NULL;
ogs_sbi_nf_service_t *nf_service = NULL;
ogs_uuid_t uuid;
char id[OGS_UUID_FORMATTED_LENGTH + 1];
char *hostname = NULL;
OpenAPI_uri_scheme_e scheme = OpenAPI_uri_scheme_NULL;
ogs_assert(nf_instance);
ogs_assert(name);
ogs_uuid_get(&uuid);
ogs_uuid_format(id, &uuid);
ogs_list_for_each(&ogs_sbi_self()->server_list, server) {
OpenAPI_uri_scheme_e s;
if (server->tls.key && server->tls.pem)
s = OpenAPI_uri_scheme_https;
else
s = OpenAPI_uri_scheme_http;
if (scheme == OpenAPI_uri_scheme_NULL) {
scheme = s;
} else if (scheme != s) {
ogs_fatal("Please CHECK CONFIGURATION - sbi[%d:%s]",
nf_instance->nf_type,
OpenAPI_nf_type_ToString(nf_instance->nf_type));
ogs_assert_if_reached();
return NULL;
}
}
nf_service = ogs_sbi_nf_service_add(nf_instance, id, name, scheme);
ogs_assert(nf_service);
hostname = NULL;
ogs_list_for_each(&ogs_sbi_self()->server_list, server) {
ogs_sockaddr_t *advertise = NULL;
advertise = server->advertise;
if (!advertise)
advertise = server->node.addr;
ogs_assert(advertise);
/* First FQDN is selected */
if (!hostname) {
hostname = ogs_gethostname(advertise);
if (hostname)
continue;
}
if (nf_service->num_of_addr < OGS_SBI_MAX_NUM_OF_IP_ADDRESS) {
int port = 0;
ogs_sockaddr_t *addr = NULL;
ogs_assert(OGS_OK == ogs_copyaddrinfo(&addr, advertise));
ogs_assert(addr);
port = OGS_PORT(addr);
if (nf_service->scheme == OpenAPI_uri_scheme_https) {
if (port == OGS_SBI_HTTPS_PORT) port = 0;
} else if (nf_service->scheme == OpenAPI_uri_scheme_http) {
if (port == OGS_SBI_HTTP_PORT) port = 0;
}
nf_service->addr[nf_service->num_of_addr].port = port;
if (addr->ogs_sa_family == AF_INET) {
nf_service->addr[nf_service->num_of_addr].ipv4 = addr;
} else if (addr->ogs_sa_family == AF_INET6) {
nf_service->addr[nf_service->num_of_addr].ipv6 = addr;
} else
ogs_assert_if_reached();
nf_service->num_of_addr++;
}
}
if (hostname) {
nf_service->fqdn = ogs_strdup(hostname);
ogs_assert(nf_service->fqdn);
}
ogs_info("NF Service [%s]", nf_service->name);
return nf_service;
}
static ogs_sbi_client_t *find_client_by_fqdn(char *fqdn, int port)
{
int rv;
ogs_sockaddr_t *addr = NULL;
ogs_sbi_client_t *client = NULL;
rv = ogs_getaddrinfo(&addr, AF_UNSPEC, fqdn,
port ? port : ogs_sbi_self()->sbi_port, 0);
if (rv != OGS_OK) {
ogs_error("Invalid NFProfile.fqdn");
return NULL;
}
client = ogs_sbi_client_find(addr);
if (!client) {
client = ogs_sbi_client_add(addr);
ogs_assert(client);
}
ogs_freeaddrinfo(addr);
return client;
}
static ogs_sbi_client_t *nf_instance_find_client(
ogs_sbi_nf_instance_t *nf_instance)
{
ogs_sbi_client_t *client = NULL;
ogs_sockaddr_t *addr = NULL;
if (nf_instance->fqdn)
client = find_client_by_fqdn(nf_instance->fqdn, 0);
if (!client) {
/* At this point, CLIENT selection method is very simple. */
if (nf_instance->num_of_ipv4) addr = nf_instance->ipv4[0];
if (nf_instance->num_of_ipv6) addr = nf_instance->ipv6[0];
if (addr) {
client = ogs_sbi_client_find(addr);
if (!client) {
client = ogs_sbi_client_add(addr);
ogs_assert(client);
}
}
}
return client;
}
static void nf_service_associate_client(ogs_sbi_nf_service_t *nf_service)
{
ogs_sbi_client_t *client = NULL;
ogs_sockaddr_t *addr = NULL;
if (nf_service->fqdn)
client = find_client_by_fqdn(nf_service->fqdn, 0);
if (!client) {
/* At this point, CLIENT selection method is very simple. */
if (nf_service->num_of_addr) {
addr = nf_service->addr[0].ipv6;
if (!addr)
addr = nf_service->addr[0].ipv4;
}
if (addr) {
client = ogs_sbi_client_find(addr);
if (!client) {
client = ogs_sbi_client_add(addr);
ogs_assert(client);
}
}
}
if (client)
OGS_SBI_SETUP_CLIENT(nf_service, client);
}
static void nf_service_associate_client_all(ogs_sbi_nf_instance_t *nf_instance)
{
ogs_sbi_nf_service_t *nf_service = NULL;
ogs_assert(nf_instance);
ogs_list_for_each(&nf_instance->nf_service_list, nf_service)
nf_service_associate_client(nf_service);
}
bool ogs_sbi_discovery_option_is_matched(
ogs_sbi_nf_instance_t *nf_instance,
ogs_sbi_discovery_option_t *discovery_option)
{
ogs_assert(nf_instance);
ogs_assert(discovery_option);
if (discovery_option->target_nf_instance_id &&
nf_instance->id && strcmp(nf_instance->id,
discovery_option->target_nf_instance_id) != 0) {
return false;
}
if (discovery_option->num_of_service_names) {
ogs_sbi_nf_service_t *nf_service = NULL;
bool exist = false;
int i;
ogs_list_for_each(&nf_instance->nf_service_list, nf_service) {
for (i = 0; i < discovery_option->num_of_service_names; i++) {
if (nf_service->name &&
discovery_option->service_names[i] &&
strcmp(nf_service->name,
discovery_option->service_names[i]) == 0) {
exist = true;
break;
}
}
if (exist == true) break;
}
if (exist == false) return false;
}
return true;
}
bool ogs_sbi_discovery_param_is_matched(
ogs_sbi_nf_instance_t *nf_instance,
OpenAPI_nf_type_e target_nf_type,
ogs_sbi_discovery_option_t *discovery_option)
{
ogs_assert(nf_instance);
ogs_assert(target_nf_type);
if (!OGS_FSM_CHECK(&nf_instance->sm, ogs_sbi_nf_state_registered))
return false;
if (nf_instance->nf_type != target_nf_type)
return false;
if (discovery_option &&
ogs_sbi_discovery_option_is_matched(
nf_instance, discovery_option) == false)
return false;
return true;
}
void ogs_sbi_client_associate(ogs_sbi_nf_instance_t *nf_instance)
{
ogs_sbi_client_t *client = NULL;
ogs_assert(nf_instance);
client = nf_instance_find_client(nf_instance);
ogs_assert(client);
OGS_SBI_SETUP_CLIENT(nf_instance, client);
nf_service_associate_client_all(nf_instance);
}
OpenAPI_uri_scheme_e ogs_sbi_default_uri_scheme(void)
{
return OpenAPI_uri_scheme_http;
}
ogs_sbi_client_t *ogs_sbi_client_find_by_service_name(
ogs_sbi_nf_instance_t *nf_instance, char *name, char *version)
{
ogs_sbi_nf_service_t *nf_service = NULL;
int i;
ogs_assert(nf_instance);
ogs_assert(name);
ogs_assert(version);
ogs_list_for_each(&nf_instance->nf_service_list, nf_service) {
ogs_assert(nf_service->name);
if (strcmp(nf_service->name, name) == 0) {
for (i = 0; i < nf_service->num_of_version; i++) {
if (strcmp(nf_service->version[i].in_uri, version) == 0) {
return nf_service->client;
}
}
}
}
ogs_error("[Fallback] Cannot find NF service[%s:%s]", name, version);
return nf_instance->client;
}
void ogs_sbi_object_free(ogs_sbi_object_t *sbi_object)
{
int i;
ogs_assert(sbi_object);
if (ogs_list_count(&sbi_object->xact_list))
ogs_error("SBI running [%d]", ogs_list_count(&sbi_object->xact_list));
for (i = 0; i < OGS_SBI_MAX_NUM_OF_SERVICE_TYPE; i++) {
ogs_sbi_nf_instance_t *nf_instance =
sbi_object->service_type_array[i].nf_instance;
if (nf_instance)
ogs_sbi_nf_instance_remove(nf_instance);
}
for (i = 0; i < OGS_SBI_MAX_NUM_OF_NF_TYPE; i++) {
ogs_sbi_nf_instance_t *nf_instance =
sbi_object->nf_type_array[i].nf_instance;
if (nf_instance)
ogs_sbi_nf_instance_remove(nf_instance);
}
}
ogs_sbi_xact_t *ogs_sbi_xact_add(
ogs_sbi_object_t *sbi_object,
ogs_sbi_service_type_e service_type,
ogs_sbi_discovery_option_t *discovery_option,
ogs_sbi_build_f build, void *context, void *data)
{
ogs_sbi_xact_t *xact = NULL;
ogs_assert(sbi_object);
ogs_pool_alloc(&xact_pool, &xact);
ogs_expect_or_return_val(xact, NULL);
memset(xact, 0, sizeof(ogs_sbi_xact_t));
xact->sbi_object = sbi_object;
xact->service_type = service_type;
/* Always insert one service-name in the discovery option */
if (!discovery_option) {
discovery_option = ogs_sbi_discovery_option_new();
ogs_assert(discovery_option);
}
if (!discovery_option->num_of_service_names) {
ogs_sbi_discovery_option_add_service_names(
discovery_option,
(char *)ogs_sbi_service_type_to_name(service_type));
}
xact->discovery_option = discovery_option;
xact->t_response = ogs_timer_add(
ogs_app()->timer_mgr, ogs_timer_sbi_client_wait_expire, xact);
if (!xact->t_response) {
ogs_error("ogs_timer_add() failed");
ogs_pool_free(&xact_pool, xact);
return NULL;
}
ogs_timer_start(xact->t_response,
ogs_app()->time.message.sbi.client_wait_duration);
if (build) {
xact->request = (*build)(context, data);
if (!xact->request) {
ogs_error("SBI build failed");
ogs_timer_delete(xact->t_response);
ogs_pool_free(&xact_pool, xact);
return NULL;
}
if (!xact->request->h.uri) {
const char *service_name = NULL;
ogs_assert(xact->service_type);
service_name = ogs_sbi_service_type_to_name(xact->service_type);
ogs_assert(service_name);
ogs_assert(xact->request->h.service.name);
/*
* Make sure the service matches
* between discover and build functions:
*
* DISCOVER : amf_ue_sbi_discover_and_send(
* OGS_SBI_SERVICE_TYPE_NPCF_AM_POLICY_CONTROL,
* BUILD : amf_npcf_am_policy_control_build_create()
* message.h.service.name =
* (char *)OGS_SBI_SERVICE_NAME_NPCF_AM_POLICY_CONTROL;
*/
if (strcmp(service_name, xact->request->h.service.name) != 0) {
ogs_fatal("[%s:%d] is not the same with [%s]",
service_name, xact->service_type,
xact->request->h.service.name);
ogs_assert_if_reached();
}
}
}
ogs_list_add(&sbi_object->xact_list, xact);
return xact;
}
void ogs_sbi_xact_remove(ogs_sbi_xact_t *xact)
{
ogs_sbi_object_t *sbi_object = NULL;
ogs_assert(xact);
sbi_object = xact->sbi_object;
ogs_assert(sbi_object);
if (xact->discovery_option)
ogs_sbi_discovery_option_free(xact->discovery_option);
ogs_assert(xact->t_response);
ogs_timer_delete(xact->t_response);
if (xact->request)
ogs_sbi_request_free(xact->request);
ogs_list_remove(&sbi_object->xact_list, xact);
ogs_pool_free(&xact_pool, xact);
}
void ogs_sbi_xact_remove_all(ogs_sbi_object_t *sbi_object)
{
ogs_sbi_xact_t *xact = NULL, *next_xact = NULL;
ogs_assert(sbi_object);
ogs_list_for_each_safe(&sbi_object->xact_list, next_xact, xact)
ogs_sbi_xact_remove(xact);
}
ogs_sbi_xact_t *ogs_sbi_xact_cycle(ogs_sbi_xact_t *xact)
{
return ogs_pool_cycle(&xact_pool, xact);
}
ogs_sbi_subscription_t *ogs_sbi_subscription_add(void)
{
ogs_sbi_subscription_t *subscription = NULL;
ogs_pool_alloc(&subscription_pool, &subscription);
ogs_assert(subscription);
memset(subscription, 0, sizeof(ogs_sbi_subscription_t));
subscription->time.validity_duration =
ogs_app()->time.subscription.validity_duration;
ogs_list_add(&ogs_sbi_self()->subscription_list, subscription);
return subscription;
}
void ogs_sbi_subscription_set_id(ogs_sbi_subscription_t *subscription, char *id)
{
ogs_assert(subscription);
ogs_assert(id);
subscription->id = ogs_strdup(id);
ogs_assert(subscription->id);
}
void ogs_sbi_subscription_remove(ogs_sbi_subscription_t *subscription)
{
ogs_assert(subscription);
ogs_list_remove(&ogs_sbi_self()->subscription_list, subscription);
if (subscription->id)
ogs_free(subscription->id);
if (subscription->notification_uri)
ogs_free(subscription->notification_uri);
if (subscription->req_nf_instance_id)
ogs_free(subscription->req_nf_instance_id);
if (subscription->t_validity)
ogs_timer_delete(subscription->t_validity);
if (subscription->client)
ogs_sbi_client_remove(subscription->client);
ogs_pool_free(&subscription_pool, subscription);
}
void ogs_sbi_subscription_remove_all_by_nf_instance_id(char *nf_instance_id)
{
ogs_sbi_subscription_t *subscription = NULL, *next_subscription = NULL;
ogs_assert(nf_instance_id);
ogs_list_for_each_safe(&ogs_sbi_self()->subscription_list,
next_subscription, subscription) {
if (subscription->req_nf_instance_id &&
strcmp(subscription->req_nf_instance_id, nf_instance_id) == 0) {
ogs_sbi_subscription_remove(subscription);
}
}
}
void ogs_sbi_subscription_remove_all(void)
{
ogs_sbi_subscription_t *subscription = NULL, *next_subscription = NULL;
ogs_list_for_each_safe(&ogs_sbi_self()->subscription_list,
next_subscription, subscription)
ogs_sbi_subscription_remove(subscription);
}
ogs_sbi_subscription_t *ogs_sbi_subscription_find(char *id)
{
ogs_sbi_subscription_t *subscription = NULL;
ogs_assert(id);
ogs_list_for_each(&ogs_sbi_self()->subscription_list, subscription) {
ogs_assert(subscription->id);
if (strcmp(subscription->id, id) == 0)
break;
}
return subscription;
}
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