forked from acouzens/open5gs
455 lines
18 KiB
C
455 lines
18 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 "ogs-app.h"
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static ogs_config_t self;
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static int initialized = 0;
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int ogs_config_init()
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{
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ogs_assert(initialized == 0);
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memset(&self, 0, sizeof(ogs_config_t));
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initialized = 1;
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return OGS_OK;
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}
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int ogs_config_final()
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{
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ogs_assert(initialized == 1);
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if (self.document) {
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yaml_document_delete(self.document);
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free(self.document);
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}
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initialized = 0;
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return OGS_OK;
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}
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ogs_config_t *ogs_config()
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{
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return &self;
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}
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int ogs_config_read()
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{
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ogs_config_t *config = &self;
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FILE *file;
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yaml_parser_t parser;
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yaml_document_t *document = NULL;
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ogs_assert(config->file);
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file = fopen(config->file, "rb");
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if (!file) {
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ogs_fatal("cannot open file `%s`", config->file);
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return OGS_ERROR;
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}
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ogs_assert(yaml_parser_initialize(&parser));
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yaml_parser_set_input_file(&parser, file);
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document = calloc(1, sizeof(yaml_document_t));
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if (!yaml_parser_load(&parser, document)) {
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ogs_fatal("Failed to parse configuration file '%s'", config->file);
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switch (parser.error) {
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case YAML_MEMORY_ERROR:
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ogs_error("Memory error: Not enough memory for parsing");
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break;
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case YAML_READER_ERROR:
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if (parser.problem_value != -1)
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ogs_error("Reader error - %s: #%X at %zd", parser.problem,
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parser.problem_value, parser.problem_offset);
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else
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ogs_error("Reader error - %s at %zd", parser.problem,
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parser.problem_offset);
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break;
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case YAML_SCANNER_ERROR:
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if (parser.context)
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ogs_error("Scanner error - %s at line %zu, column %zu"
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"%s at line %zu, column %zu", parser.context,
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parser.context_mark.line+1,
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parser.context_mark.column+1,
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parser.problem, parser.problem_mark.line+1,
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parser.problem_mark.column+1);
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else
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ogs_error("Scanner error - %s at line %zu, column %zu",
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parser.problem, parser.problem_mark.line+1,
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parser.problem_mark.column+1);
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break;
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case YAML_PARSER_ERROR:
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if (parser.context)
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ogs_error("Parser error - %s at line %zu, column %zu"
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"%s at line %zu, column %zu", parser.context,
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parser.context_mark.line+1,
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parser.context_mark.column+1,
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parser.problem, parser.problem_mark.line+1,
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parser.problem_mark.column+1);
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else
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ogs_error("Parser error - %s at line %zu, column %zu",
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parser.problem, parser.problem_mark.line+1,
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parser.problem_mark.column+1);
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break;
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default:
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/* Couldn't happen. */
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ogs_assert_if_reached();
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break;
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}
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free(document);
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yaml_parser_delete(&parser);
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ogs_assert(!fclose(file));
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return OGS_ERROR;
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}
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config->document = document;
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yaml_parser_delete(&parser);
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ogs_assert(!fclose(file));
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return OGS_OK;
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}
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static void recalculate_pool_size(void)
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{
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#define MAX_NUM_OF_BEARER 4 /* Num of Bearer per APN(Session) */
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#define MAX_NUM_OF_TUNNEL 3 /* Num of Tunnel per Bearer */
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#define MAX_NUM_OF_PF 16 /* Num of PacketFilter per Bearer */
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#define MAX_NUM_OF_NF_SERVICE 16 /* Num of NF Service per NF Instance */
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#define MAX_NUM_OF_SBI_MESSAGE 8 /* Num of HTTP(s) Request/Response per NF */
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#define MAX_NUM_OF_NF_SUBSCRIPTION 4 /* Num of Subscription per NF */
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#define MAX_NUM_OF_AUTH 4 /* Num of Subscription per UE */
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self.pool.ue = self.max.ue * self.max.gnb;
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self.pool.auth = self.pool.ue * MAX_NUM_OF_AUTH;
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self.pool.pfcp = ogs_max(self.max.smf, self.max.upf);
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self.pool.sess = self.pool.ue * OGS_MAX_NUM_OF_SESS;
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self.pool.bearer = self.pool.sess * MAX_NUM_OF_BEARER;
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self.pool.tunnel = self.pool.bearer * MAX_NUM_OF_TUNNEL;
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self.pool.pf = self.pool.bearer * MAX_NUM_OF_PF;
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self.pool.nf_service = self.max.nf * MAX_NUM_OF_NF_SERVICE;
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self.pool.sbi_message = self.max.nf * MAX_NUM_OF_SBI_MESSAGE;
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self.pool.nf_subscription = self.max.nf * MAX_NUM_OF_NF_SUBSCRIPTION;
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}
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static int config_prepare(void)
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{
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#define USRSCTP_LOCAL_UDP_PORT 9899
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self.usrsctp.udp_port = USRSCTP_LOCAL_UDP_PORT;
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#define MAX_NUM_OF_SGW 32 /* Num of SGW per MME */
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#define MAX_NUM_OF_PGW 32 /* Num of PGW per MME */
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#define MAX_NUM_OF_VLR 32 /* Num of VLR per MME */
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#define MAX_NUM_OF_CSMAP 128 /* Num of TAI-LAI MAP per MME */
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#define MAX_NUM_OF_UE 128 /* Num of UE per gNB */
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#define MAX_NUM_OF_SMF 32 /* Num of SMF per AMF */
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#define MAX_NUM_OF_UPF 32 /* Num of PGW per AMF */
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#define MAX_NUM_OF_GNB 32 /* Num of gNB per AMF */
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#define MAX_NUM_OF_NF 512 /* Num of NF Instance */
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self.max.sgw = MAX_NUM_OF_SGW;
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self.max.pgw = MAX_NUM_OF_PGW;
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self.max.vlr = MAX_NUM_OF_VLR;
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self.max.csmap = MAX_NUM_OF_CSMAP;
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self.max.gnb = MAX_NUM_OF_GNB;
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self.max.ue = MAX_NUM_OF_UE;
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self.max.smf = MAX_NUM_OF_SMF;
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self.max.upf = MAX_NUM_OF_UPF;
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self.max.nf = MAX_NUM_OF_NF;
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#define MAX_NUM_OF_PACKET_POOL 65536
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self.pool.packet = MAX_NUM_OF_PACKET_POOL;
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ogs_pkbuf_default_init(&self.pool.defconfig);
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recalculate_pool_size();
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self.time.nf_instance.heartbeat = 3; /* 3 second */
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self.time.nf_instance.validity = 3600; /* 3600 seconds = 1 hour */
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self.time.subscription.validity = 86400; /* 86400 seconds = 1 day */
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return OGS_OK;
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}
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static int ogs_app_ctx_validation(void)
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{
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if (self.parameter.no_ipv4 == 1 &&
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self.parameter.no_ipv6 == 1) {
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ogs_error("Both `no_ipv4` and `no_ipv6` set to `true` in `%s`",
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self.file);
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return OGS_ERROR;
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}
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if (self.time.nf_instance.validity == 0) {
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ogs_error("NF Instance validity-time should not 0");
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ogs_error("time:");
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ogs_error(" nf_instance:");
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ogs_error(" validity: 0");
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return OGS_ERROR;
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}
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return OGS_OK;
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}
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int ogs_config_parse()
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{
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int rv;
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ogs_config_t *config = &self;
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yaml_document_t *document = NULL;
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ogs_yaml_iter_t root_iter;
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ogs_assert(config);
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document = config->document;
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ogs_assert(document);
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rv = config_prepare();
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if (rv != OGS_OK) return rv;
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ogs_yaml_iter_init(&root_iter, document);
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while (ogs_yaml_iter_next(&root_iter)) {
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const char *root_key = ogs_yaml_iter_key(&root_iter);
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ogs_assert(root_key);
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if (!strcmp(root_key, "db_uri")) {
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self.db_uri = ogs_yaml_iter_value(&root_iter);
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} else if (!strcmp(root_key, "logger")) {
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ogs_yaml_iter_t logger_iter;
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ogs_yaml_iter_recurse(&root_iter, &logger_iter);
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while (ogs_yaml_iter_next(&logger_iter)) {
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const char *logger_key = ogs_yaml_iter_key(&logger_iter);
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ogs_assert(logger_key);
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if (!strcmp(logger_key, "file")) {
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self.logger.file = ogs_yaml_iter_value(&logger_iter);
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} else if (!strcmp(logger_key, "level")) {
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self.logger.level =
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ogs_yaml_iter_value(&logger_iter);
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} else if (!strcmp(logger_key, "domain")) {
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self.logger.domain =
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ogs_yaml_iter_value(&logger_iter);
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}
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}
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} else if (!strcmp(root_key, "parameter")) {
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ogs_yaml_iter_t parameter_iter;
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ogs_yaml_iter_recurse(&root_iter, ¶meter_iter);
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while (ogs_yaml_iter_next(¶meter_iter)) {
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const char *parameter_key = ogs_yaml_iter_key(¶meter_iter);
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ogs_assert(parameter_key);
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if (!strcmp(parameter_key, "no_hss")) {
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self.parameter.no_hss =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_sgw")) {
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self.parameter.no_sgw =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_pgw")) {
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self.parameter.no_pgw =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_pcrf")) {
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self.parameter.no_pcrf =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_upf")) {
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self.parameter.no_upf =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_smf")) {
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self.parameter.no_smf =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_ausf")) {
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self.parameter.no_ausf =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_udm")) {
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self.parameter.no_udm =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_udr")) {
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self.parameter.no_udr =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_ipv4")) {
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self.parameter.no_ipv4 =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_ipv6")) {
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self.parameter.no_ipv6 =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "prefer_ipv4")) {
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self.parameter.prefer_ipv4 =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "multicast")) {
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self.parameter.multicast =
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ogs_yaml_iter_bool(¶meter_iter);
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} else if (!strcmp(parameter_key, "no_slaac")) {
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self.parameter.no_slaac =
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ogs_yaml_iter_bool(¶meter_iter);
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} else
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ogs_warn("unknown key `%s`", parameter_key);
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}
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} else if (!strcmp(root_key, "sctp")) {
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ogs_yaml_iter_t sctp_iter;
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ogs_yaml_iter_recurse(&root_iter, &sctp_iter);
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while (ogs_yaml_iter_next(&sctp_iter)) {
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const char *sctp_key = ogs_yaml_iter_key(&sctp_iter);
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ogs_assert(sctp_key);
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if (!strcmp(sctp_key, "heartbit_interval")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v) self.sockopt.sctp.heartbit_interval = atoi(v);
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} else if (!strcmp(sctp_key, "rto_initial")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v) self.sockopt.sctp.rto_initial = atoi(v);
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} else if (!strcmp(sctp_key, "rto_min")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v) self.sockopt.sctp.rto_min = atoi(v);
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} else if (!strcmp(sctp_key, "rto_max")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v) self.sockopt.sctp.rto_max = atoi(v);
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} else if (!strcmp(sctp_key, "max_num_of_ostreams")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v)
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self.sockopt.sctp.max_num_of_ostreams = atoi(v);
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} else if (!strcmp(sctp_key, "max_num_of_istreams")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v)
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self.sockopt.sctp.max_num_of_istreams = atoi(v);
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} else if (!strcmp(sctp_key, "max_attempts")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v) self.sockopt.sctp.max_attempts = atoi(v);
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} else if (!strcmp(sctp_key, "max_initial_timeout")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v)
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self.sockopt.sctp.max_initial_timeout = atoi(v);
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} else if (!strcmp(sctp_key, "usrsctp_udp_port")) {
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const char *v = ogs_yaml_iter_value(&sctp_iter);
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if (v) self.usrsctp.udp_port = atoi(v);
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} else
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ogs_warn("unknown key `%s`", sctp_key);
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}
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} else if (!strcmp(root_key, "max")) {
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ogs_yaml_iter_t max_iter;
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ogs_yaml_iter_recurse(&root_iter, &max_iter);
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while (ogs_yaml_iter_next(&max_iter)) {
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const char *max_key = ogs_yaml_iter_key(&max_iter);
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ogs_assert(max_key);
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if (!strcmp(max_key, "ue")) {
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const char *v = ogs_yaml_iter_value(&max_iter);
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if (v) self.max.ue = atoi(v);
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} else if (!strcmp(max_key, "gnb") ||
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!strcmp(max_key, "enb")) {
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const char *v = ogs_yaml_iter_value(&max_iter);
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if (v) self.max.gnb = atoi(v);
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} else if (!strcmp(max_key, "nf")) {
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const char *v = ogs_yaml_iter_value(&max_iter);
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if (v) self.max.nf = atoi(v);
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} else
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ogs_warn("unknown key `%s`", max_key);
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}
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recalculate_pool_size();
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} else if (!strcmp(root_key, "pool")) {
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ogs_yaml_iter_t pool_iter;
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ogs_yaml_iter_recurse(&root_iter, &pool_iter);
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while (ogs_yaml_iter_next(&pool_iter)) {
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const char *pool_key = ogs_yaml_iter_key(&pool_iter);
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ogs_assert(pool_key);
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if (!strcmp(pool_key, "128")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_128_pool = atoi(v);
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} else if (!strcmp(pool_key, "256")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_256_pool = atoi(v);
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} else if (!strcmp(pool_key, "512")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_512_pool = atoi(v);
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} else if (!strcmp(pool_key, "1024")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_1024_pool = atoi(v);
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} else if (!strcmp(pool_key, "2048")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_2048_pool = atoi(v);
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} else if (!strcmp(pool_key, "8192")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_8192_pool = atoi(v);
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} else if (!strcmp(pool_key, "big")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.defconfig.cluster_big_pool = atoi(v);
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} else if (!strcmp(pool_key, "packet")) {
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const char *v = ogs_yaml_iter_value(&pool_iter);
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if (v)
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self.pool.packet = atoi(v);
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} else
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ogs_warn("unknown key `%s`", pool_key);
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}
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} else if (!strcmp(root_key, "time")) {
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ogs_yaml_iter_t time_iter;
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ogs_yaml_iter_recurse(&root_iter, &time_iter);
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while (ogs_yaml_iter_next(&time_iter)) {
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const char *time_key = ogs_yaml_iter_key(&time_iter);
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ogs_assert(time_key);
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if (!strcmp(time_key, "nf_instance")) {
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ogs_yaml_iter_t sbi_iter;
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ogs_yaml_iter_recurse(&time_iter, &sbi_iter);
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while (ogs_yaml_iter_next(&sbi_iter)) {
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const char *sbi_key =
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ogs_yaml_iter_key(&sbi_iter);
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ogs_assert(sbi_key);
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if (!strcmp(sbi_key, "heartbeat")) {
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const char *v = ogs_yaml_iter_value(&sbi_iter);
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if (v) self.time.nf_instance.heartbeat = atoi(v);
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} else if (!strcmp(sbi_key, "validity")) {
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const char *v = ogs_yaml_iter_value(&sbi_iter);
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if (v) self.time.nf_instance.validity = atoi(v);
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} else
|
|
ogs_warn("unknown key `%s`", sbi_key);
|
|
}
|
|
} else if (!strcmp(time_key, "subscription")) {
|
|
ogs_yaml_iter_t sbi_iter;
|
|
ogs_yaml_iter_recurse(&time_iter, &sbi_iter);
|
|
|
|
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, "validity")) {
|
|
const char *v = ogs_yaml_iter_value(&sbi_iter);
|
|
if (v) self.time.subscription.validity = atoi(v);
|
|
} else
|
|
ogs_warn("unknown key `%s`", sbi_key);
|
|
}
|
|
} else
|
|
ogs_warn("unknown key `%s`", time_key);
|
|
}
|
|
}
|
|
}
|
|
|
|
rv = ogs_app_ctx_validation();
|
|
if (rv != OGS_OK) return rv;
|
|
|
|
return OGS_OK;
|
|
}
|