4 Copyright (C) 2003-2004 Guus Sliepen <guus@tinc-vpn.org>,
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <gnutls/gnutls.h>
30 #define TNL_PROTOCOL 0
32 #define TNL_RECORD_PACKET 0
33 #define TNL_RECORD_META 1
34 #define TNL_RECORD_HELLO 2
35 #define TNL_RECORD_BLA 3
37 typedef struct tnl_record {
43 typedef enum tnl_status {
45 TNL_STATUS_CONNECTING,
50 typedef struct tnl_ep {
51 struct sockaddr_storage address;
54 struct tnl_ep_credentials *cred;
55 struct tnl_ep_cryptoparm *parm;
64 enum tnl_status status;
67 bool (*send_packet)(struct tnl *tnl, const void *buf, int len);
68 bool (*send_meta)(struct tnl *tnl, const void *buf, int len);
69 bool (*close)(struct tnl *tnl);
71 bool (*recv_packet)(struct tnl *tnl, const void *buf, int len);
72 bool (*recv_meta)(struct tnl *tnl, const void *buf, int len);
73 bool (*accept)(struct tnl *tnl);
74 bool (*error)(struct tnl *tnl, int errnum);
79 gnutls_session session;
84 typedef struct tnl_listen {
89 bool (*accept)(struct tnl *tnl);
90 bool (*close)(struct tnl_listen *listener);
95 extern bool tnl_listen(struct tnl_listen *listener);
96 extern bool tnl_connect(struct tnl *tnl);
98 extern bool tnl_credentials_sprint(const char *buf, int len, const struct tnl_ep_credentials *cred);
99 extern bool tnl_credentials_sscan(const char *buf, struct tnl_ep_credentials *cred);
100 extern bool tnl_cryptoparm_sprint(const char *buf, int len, const struct tnl_ep_cryptoparm *parm);
101 extern bool tnl_cryptoparm_sscan(const char *buf, struct tnl_ep_cryptoparm *parm);
102 extern bool tnl_credentials_fprint(FILE *stream, const struct tnl_ep_credentials *cred);
103 extern bool tnl_credentials_fscan(FILE *stream, struct tnl_ep_credentials *cred);
105 #endif /* __TNL_H__ */