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/*
* ProFTPD - mod_proxy SSH kex API
* Copyright (c) 2021 TJ Saunders
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
*
* As a special exemption, TJ Saunders and other respective copyright holders
* give permission to link this program with OpenSSL, and distribute the
* resulting executable, without including the source code for OpenSSL in the
* source distribution.
*/
#ifndef MOD_PROXY_SSH_KEX_H
#define MOD_PROXY_SSH_KEX_H
#include "mod_proxy.h"
#include "proxy/session.h"
#include "proxy/ssh.h"
#if defined(PR_USE_OPENSSL)
int proxy_ssh_kex_handle(struct proxy_ssh_packet *pkt,
const struct proxy_session *proxy_sess);
int proxy_ssh_kex_init(pool *p, const char *client_version,
const char *server_version);
int proxy_ssh_kex_free(void);
int proxy_ssh_kex_sess_init(pool *p, struct proxy_ssh_datastore *ds,
int verify_hostkeys);
int proxy_ssh_kex_sess_free(void);
int proxy_ssh_kex_send_first_kexinit(pool *p,
const struct proxy_session *proxy_sess);
#define PROXY_SSH_KEX_DH_GROUP_MIN 1024
#define PROXY_SSH_KEX_DH_GROUP_MAX 8192
#endif /* PR_USE_OPENSSL */
#endif /* MOD_PROXY_SSH_KEX_H */
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