+/*
+ connlist.h -- header for connlist.c
+ Copyright (C) 2000 Guus Sliepen <guus@sliepen.warande.net>,
+ 2000 Ivo Timmermans <itimmermans@bigfoot.com>
+
+ 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: connlist.h,v 1.1.2.1 2000/10/11 10:35:15 guus Exp $
+*/
+
+#ifndef __TINC_CONNLIST_H__
+#define __TINC_CONNLIST_H__
+
+#include <openssl/evp.h>
+
+#include "net.h"
+#include "subnet.h"
+
+typedef struct conn_list_t {
+ char *name; /* name of this connection */
+ ip_t real_ip; /* his real (internet) ip */
+ char *hostname; /* the hostname of its real ip */
+ short unsigned int port; /* his portnumber */
+ int protocol_version; /* used protocol */
+ int options; /* options turned on for this connection */
+
+ int flags; /* his flags */
+ int socket; /* our udp vpn socket */
+ int meta_socket; /* our tcp meta socket */
+ status_bits_t status; /* status info */
+ packet_queue_t *sq; /* pending outgoing packets */
+ packet_queue_t *rq; /* pending incoming packets (they have no
+ valid key to be decrypted with) */
+ enc_key_t *public_key; /* the other party's public key */
+ enc_key_t *datakey; /* encrypt data packets with this key */
+ enc_key_t *rsakey;
+
+ EVP_CIPHER_CTX *cipher_inctx; /* Context of encrypted meta data that will come from him to us */
+ EVP_CIPHER_CTX *cipher_outctx; /* Context of encrypted meta data that will be sent from us to him */
+
+ EVP_CIPHER_CTX *cipher_pktctx; /* Context of encrypted vpn packets that will be sent to him */
+ EVP_CIPHER *cipher_pkttype; /* Cipher type for encrypted vpn packets */
+ char *cipher_pktkey; /* Cipher key */
+ char *cipher_pktiv; /* Cipher input vector */
+
+ char *buffer; /* metadata input buffer */
+ int buflen; /* bytes read into buffer */
+ int reqlen; /* length of first request in buffer */
+ int allow_request; /* defined if there's only one request possible */
+
+ time_t last_ping_time; /* last time we saw some activity from the other end */
+ int want_ping; /* 0 if there's no need to check for activity. Shouldn't this go into status? (GS) */
+
+ char *mychallenge; /* challenge we received from him */
+ char *hischallenge; /* challenge we sent to him */
+
+ struct conn_list_t *nexthop; /* nearest meta-hop in this direction, will be changed to myuplink (GS) */
+ struct conn_list_t *hisuplink; /* his nearest meta-hop in our direction */
+ struct conn_list_t *myuplink; /* our nearest meta-hop in his direction */
+
+ struct subnet_t *subnets; /* Pointer to a list of subnets belonging to this connection */
+
+ struct conn_list_t *next; /* after all, it's a list of connections */
+} conn_list_t;
+
+extern conn_list_t *conn_list;
+extern conn_list_t *myself;
+
+extern conn_list_t *new_conn_list();
+extern void free_conn_list(conn_list_t *);
+extern void add_conn_list(conn_list_t *);
+extern void del_conn_list(conn_list_t *);
+extern conn_list_t *lookup_conn_list_mac(mac_t);
+extern conn_list_t *lookup_conn_list_ipv4(ipv4_t);
+extern conn_list_t *lookup_conn_list_ipv6(ipv6_t);
+extern void dump_conn_list(void);
+
+#endif /* __TINC_CONNLIST_H__ */
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