1 /*
2  * ProFTPD - mod_sftp key exchange (kex)
3  * Copyright (c) 2008-2016 TJ Saunders
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
18  *
19  * As a special exemption, TJ Saunders and other respective copyright holders
20  * give permission to link this program with OpenSSL, and distribute the
21  * resulting executable, without including the source code for OpenSSL in the
22  * source distribution.
23  */
24 
25 #ifndef MOD_SFTP_KEX_H
26 #define MOD_SFTP_KEX_H
27 
28 #include "mod_sftp.h"
29 
30 int sftp_kex_handle(struct ssh2_packet *);
31 int sftp_kex_init(const char *, const char *);
32 int sftp_kex_free(void);
33 
34 int sftp_kex_rekey(void);
35 int sftp_kex_rekey_set_interval(int);
36 int sftp_kex_rekey_set_timeout(int);
37 
38 int sftp_kex_send_first_kexinit(void);
39 
40 #define SFTP_KEX_DH_GROUP_MIN	1024
41 #define SFTP_KEX_DH_GROUP_MAX	8192
42 
43 #endif /* MOD_SFTP_KEX_H */
44