X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnode.h;h=f2bea91bb70f38c9b991bab55f412200b6bfefc4;hp=f96c56e383ac24bd555aa1af9c08eeab6c2e5561;hb=698d6ddac6ab32d5a4b802941b02232793442684;hpb=f22b9417510cca258785f8958c8dfed90e26d81b diff --git a/src/node.h b/src/node.h index f96c56e3..f2bea91b 100644 --- a/src/node.h +++ b/src/node.h @@ -1,7 +1,7 @@ /* node.h -- header for node.c - Copyright (C) 2001 Guus Sliepen , - 2001 Ivo Timmermans + Copyright (C) 2001-2002 Guus Sliepen , + 2001-2002 Ivo Timmermans 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 @@ -17,31 +17,77 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: node.h,v 1.1.2.2 2001/10/09 19:37:10 guus Exp $ + $Id: node.h,v 1.1.2.18 2002/09/04 08:33:08 guus Exp $ */ +#ifndef __TINC_NODE_H__ +#define __TINC_NODE_H__ + +#ifdef HAVE_INTTYPES_H + #include +#endif + +#include + +#include "subnet.h" +#include "connection.h" + +typedef struct node_status_t { + int active:1; /* 1 if active.. */ + int validkey:1; /* 1 if we currently have a valid key for him */ + int waitingforkey:1; /* 1 if we already sent out a request */ + int visited:1; /* 1 if this node has been visited by one of the graph algorithms */ + int reachable:1; /* 1 if this node is reachable in the graph */ + int indirect:1; /* 1 if this node is not directly reachable by us */ + int unused:26; +} node_status_t; + typedef struct node_t { - char *name; /* name of this connection */ - int protocol_version; /* used protocol */ - long int options; /* options turned on for this connection */ + char *name; /* name of this node */ + long int options; /* options turned on for this node */ - ipv4_t address; /* his real (internet) ip to send UDP packets to */ - short unsigned int port; /* port number of UDP connection */ + sockaddr_t address; /* his real (internet) ip to send UDP packets to */ char *hostname; /* the hostname of its real ip */ - status_bits_t status; /* status info */ + struct node_status_t status; - EVP_CIPHER *cipher; /* Cipher type for UDP packets */ + int distance; /* Distance from us to that node */ + + const EVP_CIPHER *cipher; /* Cipher type for UDP packets */ char *key; /* Cipher key and iv */ int keylength; /* Cipher key and iv length*/ + const EVP_MD *digest; /* Digest type for MAC */ + int maclength; /* Length of MAC */ + + int compression; /* Compressionlevel, 0 = no compression */ + list_t *queue; /* Queue for packets awaiting to be encrypted */ - struct node_t *nexthop; /* nearest meta-hop from us to him */ - struct node_t *prevhop; /* nearest meta-hop from him to us */ + struct node_t *nexthop; /* nearest node from us to him */ + struct node_t *prevhop; /* nearest node from him to us */ struct node_t *via; /* next hop for UDP packets */ avl_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */ - struct config_t *config; /* Pointer to configuration tree belonging to this node */ + struct connection_t *connection; /* Connection associated with this node (if a direct connection exists) */ + + uint32_t sent_seqno; /* Sequence number last sent to this node */ + uint32_t received_seqno; /* Sequence number last received from this node */ } node_t; + +extern struct node_t *myself; +extern avl_tree_t *node_tree; +extern avl_tree_t *node_udp_tree; + +extern void init_nodes(void); +extern void exit_nodes(void); +extern node_t *new_node(void); +extern void free_node(node_t *); +extern void node_add(node_t *); +extern void node_del(node_t *); +extern node_t *lookup_node(char *); +extern node_t *lookup_node_udp(sockaddr_t *); +extern void dump_nodes(void); + +#endif /* __TINC_NODE_H__ */