forked from acouzens/open5gs
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef OGS_TUN_H
|
|
#define OGS_TUN_H
|
|
|
|
#include "proto/ogs-proto.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* OGS_TUN_MAX_HEADROOM(16bytes)
|
|
*
|
|
* Linux
|
|
* - ogs_tun_read(16bytes)
|
|
* OGS_GTPV1U_5GC_HEADER_LEN(16bytes)
|
|
* - ogs_tun_write(0bytes)
|
|
* No Need for headroom
|
|
*
|
|
* Mac OS X
|
|
* - ogs_tun_read(12bytes)
|
|
* OGS_GTPV1U_5GC_HEADER_LEN(16bytes) - Null/Loopback(4bytes)
|
|
* - ogs_tun_write(4bytes)
|
|
* Null/Loopback(4bytes)
|
|
*
|
|
* So, we'll just use 12bytes.
|
|
*/
|
|
#define OGS_TUN_MAX_HEADROOM 16
|
|
|
|
ogs_socket_t ogs_tun_open(char *ifname, int maxlen, int is_tap);
|
|
int ogs_tun_set_ip(char *ifname, ogs_ipsubnet_t *gw, ogs_ipsubnet_t *sub);
|
|
|
|
ogs_pkbuf_t *ogs_tun_read(ogs_socket_t fd, ogs_pkbuf_pool_t *packet_pool);
|
|
int ogs_tun_write(ogs_socket_t fd, ogs_pkbuf_t *pkbuf);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* OGS_TUN_H */
|