Move all source code to src/.

[tinc] / src / tnl.h

diff --git a/src/tnl.h b/src/tnl.h
new file mode 100644 (file)
index 0000000..77a8b2a
--- /dev/null
+++ b/src/tnl.h
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+/*
+    tnl.h -- tunnels
+
+    Copyright (C) 2003-2004 Guus Sliepen <guus@tinc-vpn.org>,
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#ifndef __TNL_H__
+#define __TNL_H__
+
+#include <gnutls/gnutls.h>
+#include <gnutls/extra.h>
+
+#include "fd/fd.h"
+
+#define TNL_PROTOCOL 0
+
+#define TNL_RECORD_PACKET 0
+#define TNL_RECORD_META 1
+#define TNL_RECORD_HELLO 2
+#define TNL_RECORD_BLA 3
+
+typedef struct tnl_record {
+       uint16_t type;
+       uint16_t len;
+       char data[];
+} tnl_record_t;
+
+typedef enum tnl_status {
+       TNL_STATUS_DOWN,
+       TNL_STATUS_CONNECTING,
+       TNL_STATUS_HANDSHAKE,
+       TNL_STATUS_UP,
+} tnl_status_t;
+
+typedef struct tnl_ep_credentials {
+       gnutls_credentials_type type;
+       union {
+               gnutls_anon_client_credentials anon_client;
+               gnutls_anon_server_credentials anon_server;
+               gnutls_srp_client_credentials srp_client;
+               gnutls_srp_server_credentials srp_server;
+               gnutls_certificate_credentials certificate;
+       };
+} tnl_ep_credentials_t;                
+
+typedef struct tnl_ep_cryptoparm {
+} tnl_ep_cryptoparm_t;
+
+typedef struct tnl_ep {
+       struct sockaddr_storage address;
+       char *id;
+       char *hostname;
+       struct tnl_ep_credentials cred;
+       struct tnl_ep_cryptoparm parm;
+} tnl_ep_t;
+
+typedef struct tnl {
+       struct tnl_ep local;
+       struct tnl_ep remote;
+       int type;
+       int protocol;
+       int mtu;
+       enum tnl_status status;
+       void *data;
+
+       bool (*send_packet)(struct tnl *tnl, const void *buf, int len);
+       bool (*send_meta)(struct tnl *tnl, const void *buf, int len);
+       bool (*close)(struct tnl *tnl);
+
+       bool (*recv_packet)(struct tnl *tnl, const void *buf, int len);
+       bool (*recv_meta)(struct tnl *tnl, const void *buf, int len);
+       bool (*accept)(struct tnl *tnl);
+       bool (*error)(struct tnl *tnl, int errnum);
+
+       /* private */
+       
+       gnutls_session session;
+       struct fd fd;
+       char buf[4096];
+       int bufread;
+} tnl_t;
+
+typedef struct tnl_listen {
+       struct tnl_ep local;
+       int type;
+       int protocol;
+
+       bool (*accept)(struct tnl *tnl);
+       bool (*close)(struct tnl_listen *listener);
+
+       struct fd fd;
+} tnl_listen_t;
+
+extern bool tnl_listen(struct tnl_listen *listener);
+extern bool tnl_connect(struct tnl *tnl);
+
+extern bool tnl_ep_set_x509_credentials(tnl_ep_t *tnl_ep, const char *key, const char *certificate, const char *trust, const char *crl);
+extern bool tnl_ep_set_openpgp_credentials(tnl_ep_t *tnl_ep, const char *privkey, const char *pubkey, const char *keyring, const char *trustdb);
+
+#endif /* __TNL_H__ */