mirror of
https://github.com/open5gs/open5gs.git
synced 2025-11-03 21:43:25 +00:00
144 lines
3.8 KiB
C
144 lines
3.8 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 "ogs-gtp.h"
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ogs_sock_t *ogs_gtp_server(ogs_socknode_t *node)
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{
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char buf[OGS_ADDRSTRLEN];
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ogs_sock_t *gtp;
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ogs_assert(node);
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gtp = ogs_udp_server(node->addr, node->option);
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if (gtp) {
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ogs_info("gtp_server() [%s]:%d",
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OGS_ADDR(node->addr, buf), OGS_PORT(node->addr));
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node->sock = gtp;
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}
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return gtp;
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}
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int ogs_gtp_connect(ogs_sock_t *ipv4, ogs_sock_t *ipv6, ogs_gtp_node_t *gnode)
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{
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ogs_sockaddr_t *addr;
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char buf[OGS_ADDRSTRLEN];
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ogs_assert(ipv4 || ipv6);
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ogs_assert(gnode);
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ogs_assert(gnode->sa_list);
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addr = gnode->sa_list;
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while (addr) {
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ogs_sock_t *sock = NULL;
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if (addr->ogs_sa_family == AF_INET)
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sock = ipv4;
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else if (addr->ogs_sa_family == AF_INET6)
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sock = ipv6;
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else
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ogs_assert_if_reached();
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if (sock) {
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ogs_info("gtp_connect() [%s]:%d",
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OGS_ADDR(addr, buf), OGS_PORT(addr));
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gnode->sock = sock;
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memcpy(&gnode->addr, addr, sizeof gnode->addr);
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break;
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}
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addr = addr->next;
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}
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if (addr == NULL) {
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ogs_log_message(OGS_LOG_WARN, ogs_socket_errno,
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"gtp_connect() [%s]:%d failed",
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OGS_ADDR(gnode->sa_list, buf), OGS_PORT(gnode->sa_list));
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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_gtp_send(ogs_gtp_node_t *gnode, ogs_pkbuf_t *pkbuf)
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{
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ssize_t sent;
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ogs_sock_t *sock = NULL;
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ogs_assert(gnode);
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ogs_assert(pkbuf);
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sock = gnode->sock;
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ogs_assert(sock);
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sent = ogs_send(sock->fd, pkbuf->data, pkbuf->len, 0);
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if (sent < 0 || sent != pkbuf->len) {
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if (ogs_socket_errno != OGS_EAGAIN) {
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ogs_log_message(OGS_LOG_ERROR, ogs_socket_errno,
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"ogs_gtp_send() failed");
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}
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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_gtp_sendto(ogs_gtp_node_t *gnode, ogs_pkbuf_t *pkbuf)
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{
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ssize_t sent;
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ogs_sock_t *sock = NULL;
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ogs_sockaddr_t *addr = NULL;
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ogs_assert(gnode);
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ogs_assert(pkbuf);
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sock = gnode->sock;
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ogs_assert(sock);
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addr = &gnode->addr;
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ogs_assert(addr);
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sent = ogs_sendto(sock->fd, pkbuf->data, pkbuf->len, 0, addr);
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if (sent < 0 || sent != pkbuf->len) {
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if (ogs_socket_errno != OGS_EAGAIN) {
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char buf[OGS_ADDRSTRLEN];
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int err = ogs_socket_errno;
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ogs_log_message(OGS_LOG_ERROR, err,
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"ogs_gtp_sendto(%u, %p, %u, 0, %s:%u) failed",
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sock->fd, pkbuf->data, pkbuf->len,
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OGS_ADDR(addr, buf), OGS_PORT(addr));
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}
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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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void ogs_gtp_send_error_message(
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ogs_gtp_xact_t *xact, uint32_t teid, uint8_t type, uint8_t cause_value)
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{
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switch (xact->gtp_version) {
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case 1:
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ogs_gtp1_send_error_message(xact, teid, type, cause_value);
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break;
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case 2:
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ogs_gtp2_send_error_message(xact, teid, type, cause_value);
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break;
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}
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}
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