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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/>.
*/
#define _DEFAULT_SOURCE 1
#define _BSD_SOURCE 1
#include "rule-match.h"
#if HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#if HAVE_NETINET_IP6_H
#include <netinet/ip6.h>
#endif
upf_sess_t *upf_sess_find_by_ue_ip_address(ogs_pkbuf_t *pkbuf)
{
upf_sess_t *sess = NULL;
char buf[OGS_ADDRSTRLEN];
struct ip *ip_h = NULL;
struct ip6_hdr *ip6_h = NULL;
ogs_assert(pkbuf);
ogs_assert(pkbuf->len);
ogs_assert(pkbuf->data);
ip_h = (struct ip *)pkbuf->data;
if (ip_h->ip_v == 4) {
ip_h = (struct ip *)pkbuf->data;
sess = upf_sess_find_by_ipv4(ip_h->ip_dst.s_addr);
} else if (ip_h->ip_v == 6) {
ip6_h = (struct ip6_hdr *)pkbuf->data;
sess = upf_sess_find_by_ipv6((uint32_t *)ip6_h->ip6_dst.s6_addr);
} else {
ogs_error("Invalid packet [IP version:%d, Packet Length:%d]",
ip_h->ip_v, pkbuf->len);
ogs_log_hexdump(OGS_LOG_ERROR, pkbuf->data, pkbuf->len);
}
if (sess) {
if (ip_h && sess->ipv4)
ogs_trace("PAA IPv4:%s", OGS_INET_NTOP(&sess->ipv4->addr, buf));
if (ip6_h && sess->ipv6)
ogs_trace("PAA IPv6:%s", OGS_INET6_NTOP(&sess->ipv6->addr, buf));
}
return sess;
}
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