X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnode.h;h=7b777288c82639719930e63e4a14b134c797d351;hb=551cd19406a560d0d206bff5b4e9da064ec222b6;hp=64938521def4e8081764404cc377a778a2a138a3;hpb=c2b9c06062d36bde859b630b99a08c7b7428e721;p=tinc diff --git a/src/node.h b/src/node.h index 64938521..7b777288 100644 --- a/src/node.h +++ b/src/node.h @@ -1,7 +1,7 @@ /* node.h -- header for node.c - Copyright (C) 2001-2002 Guus Sliepen , - 2001-2002 Ivo Timmermans + Copyright (C) 2001-2006 Guus Sliepen , + 2001-2005 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 @@ -17,71 +17,84 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: node.h,v 1.1.2.12 2002/02/18 16:25:16 guus Exp $ + $Id$ */ #ifndef __TINC_NODE_H__ #define __TINC_NODE_H__ -#include +#include -#include "subnet.h" +#include "splay_tree.h" +#include "cipher.h" #include "connection.h" +#include "digest.h" +#include "list.h" +#include "subnet.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 unused:27; +typedef union node_status_t { + struct { + int unused_active:1; /* 1 if active (not used for nodes) */ + 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; + }; + uint32_t value; } node_status_t; typedef struct node_t { - char *name; /* name of this node */ - long int options; /* options turned on for this node */ + char *name; /* name of this node */ + long int options; /* options turned on for this node */ + + sockaddr_t address; /* his real (internet) ip to send UDP packets to */ + char *hostname; /* the hostname of its real ip */ - sockaddr_t address; /* his real (internet) ip to send UDP packets to */ - char *hostname; /* the hostname of its real ip */ + node_status_t status; - struct node_status_t status; + cipher_t cipher; /* Cipher for UDP packets */ + digest_t digest; /* Digest for UDP packets */ + int maclength; /* Portion of digest to use */ - const EVP_CIPHER *cipher; /* Cipher type for UDP packets */ - char *key; /* Cipher key and iv */ - int keylength; /* Cipher key and iv length*/ + int compression; /* Compressionlevel, 0 = no compression */ - const EVP_MD *digest; /* Digest type for MAC */ - int maclength; /* Length of MAC */ + list_t *queue; /* Queue for packets awaiting to be encrypted */ - int compression; /* Compressionlevel, 0 = no compression */ + int distance; + struct node_t *nexthop; /* nearest node from us to him */ + struct node_t *via; /* next hop for UDP packets */ - list_t *queue; /* Queue for packets awaiting to be encrypted */ + splay_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */ - struct node_t *nexthop; /* nearest node from us to him */ - struct node_t *via; /* next hop for UDP packets */ - - avl_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */ + splay_tree_t *edge_tree; /* Edges with this node as one of the endpoints */ - avl_tree_t *edge_tree; /* Edges with this node as one of the endpoints */ + struct connection_t *connection; /* Connection associated with this node (if a direct connection exists) */ - 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 */ + unsigned char late[16]; /* Bitfield marking late packets */ - unsigned int sent_seqno; /* Sequence number last sent to this node */ - unsigned int received_seqno; /* Sequence number last received from this node */ + length_t mtu; /* Maximum size of packets to send to this node */ + length_t minmtu; /* Probed minimum MTU */ + length_t maxmtu; /* Probed maximum MTU */ + int mtuprobes; /* Number of probes */ + struct event mtuevent; /* Probe event */ } node_t; extern struct node_t *myself; -extern avl_tree_t *node_tree; -extern avl_tree_t *node_udp_tree; +extern splay_tree_t *node_tree; +extern splay_tree_t *node_udp_tree; extern void init_nodes(void); extern void exit_nodes(void); -extern node_t *new_node(void); +extern node_t *new_node(void) __attribute__ ((__malloc__)); 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); +extern node_t *lookup_node_udp(const sockaddr_t *); +extern int dump_nodes(struct evbuffer *); -#endif /* __TINC_NODE_H__ */ +#endif /* __TINC_NODE_H__ */