X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnode.h;h=0476cdb062430de506dce3c01e124e2b73874d5d;hb=3a149f7521dfff67e6a790c1a830afc649ae083e;hp=e6b28d298b92aaae49d6af2873231340f7f85a7c;hpb=ec0c16b9b63f361b11a757ee1641d562e4811f93;p=tinc diff --git a/src/node.h b/src/node.h index e6b28d29..b6039684 100644 --- a/src/node.h +++ b/src/node.h @@ -1,7 +1,10 @@ +#ifndef TINC_NODE_H +#define TINC_NODE_H + /* node.h -- header for node.c - Copyright (C) 2001 Guus Sliepen , - 2001 Ivo Timmermans + Copyright (C) 2001-2013 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 @@ -13,45 +16,117 @@ 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: node.h,v 1.1.2.3 2001/10/10 08:49:47 guus Exp $ + 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., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#ifndef __TINC_NODE_H__ -#define __TINC_NODE_H__ +#include "splay_tree.h" +#include "cipher.h" +#include "connection.h" +#include "digest.h" +#include "event.h" +#include "subnet.h" -#include +typedef struct node_status_t { + bool unused_active: 1; /* 1 if active (not used for nodes) */ + bool validkey: 1; /* 1 if we currently have a valid key for him */ + bool waitingforkey: 1; /* 1 if we already sent out a request */ + bool visited: 1; /* 1 if this node has been visited by one of the graph algorithms */ + bool reachable: 1; /* 1 if this node is reachable in the graph */ + bool indirect: 1; /* 1 if this node is not directly reachable by us */ + bool sptps: 1; /* 1 if this node supports SPTPS */ + bool udp_confirmed: 1; /* 1 if the address is one that we received UDP traffic on */ + bool send_locally: 1; /* 1 if the next UDP packet should be sent on the local network */ + bool udppacket: 1; /* 1 if the most recently received packet was UDP */ + bool validkey_in: 1; /* 1 if we have sent a valid key to him */ + bool has_address: 1; /* 1 if we know an external address for this node */ + bool ping_sent: 1; /* 1 if we sent a UDP probe but haven't received the reply yet */ + uint32_t unused: 19; +} 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 */ + char *hostname; /* the hostname of its real ip */ + node_id_t id; /* unique node ID (name hash) */ + uint32_t options; /* options turned on for this node */ + + size_t sock; /* Socket to use for outgoing UDP packets */ + sockaddr_t address; /* his real (internet) ip to send UDP packets to */ + + node_status_t status; + time_t last_state_change; + time_t last_req_key; + + ecdsa_t *ecdsa; /* His public ECDSA key */ + sptps_t sptps; + +#ifndef DISABLE_LEGACY + cipher_t *incipher; /* Cipher for UDP packets */ + digest_t *indigest; /* Digest for UDP packets */ + + cipher_t *outcipher; /* Cipher for UDP packets */ + digest_t *outdigest; /* Digest for UDP packets */ +#endif + + int incompression; /* Compressionlevel, 0 = no compression */ + int outcompression; /* Compressionlevel, 0 = no compression */ - ipv4_t address; /* his real (internet) ip to send UDP packets to */ - short unsigned int port; /* port number of UDP connection */ - char *hostname; /* the hostname of its real ip */ + int distance; + struct node_t *nexthop; /* nearest node from us to him */ + struct edge_t *prevedge; /* nearest node from him to us */ + struct node_t *via; /* next hop for UDP packets */ - status_bits_t status; /* status info */ + splay_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */ - EVP_CIPHER *cipher; /* Cipher type for UDP packets */ - char *key; /* Cipher key and iv */ - int keylength; /* Cipher key and iv length*/ + splay_tree_t *edge_tree; /* Edges with this node as one of the endpoints */ - list_t *queue; /* Queue for packets awaiting to be encrypted */ + struct connection_t *connection; /* Connection associated with this node (if a direct connection exists) */ - 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 *via; /* next hop for UDP packets */ - - avl_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */ + uint32_t sent_seqno; /* Sequence number last sent to this node */ + uint32_t received_seqno; /* Sequence number last received from this node */ + uint32_t received; /* Total valid packets received from this node */ + uint32_t farfuture; /* Packets in a row that have arrived from the far future */ + uint8_t *late; /* Bitfield marking late packets */ - struct config_t *config; /* Pointer to configuration tree belonging to this node */ + struct timeval udp_reply_sent; /* Last time a (gratuitous) UDP probe reply was sent */ + struct timeval udp_ping_sent; /* Last time a UDP probe was sent */ + int udp_ping_rtt; /* Round trip time of UDP ping (in microseconds; or -1 if !status.udp_confirmed) */ + timeout_t udp_ping_timeout; /* Ping timeout event */ + + struct timeval mtu_ping_sent; /* Last time a MTU probe was sent */ + + struct timeval mtu_info_sent; /* Last time a MTU_INFO message was sent */ + struct timeval udp_info_sent; /* Last time a UDP_INFO message was sent */ + + length_t maxrecentlen; /* Maximum size of recently received packets */ + + 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 */ + + uint64_t in_packets; + uint64_t in_bytes; + uint64_t out_packets; + uint64_t out_bytes; + + struct address_cache_t *address_cache; } node_t; -struct node_t *myself; -extern avl_tree_t *node_tree; +extern struct node_t *myself; +extern splay_tree_t node_tree; + +extern void exit_nodes(void); +extern node_t *new_node(void) __attribute__((__malloc__)); +extern void free_node(node_t *n); +extern void node_add(node_t *n); +extern void node_del(node_t *n); +extern node_t *lookup_node(char *name); +extern node_t *lookup_node_id(const node_id_t *id); +extern node_t *lookup_node_udp(const sockaddr_t *sa); +extern bool dump_nodes(struct connection_t *c); +extern bool dump_traffic(struct connection_t *c); +extern void update_node_udp(node_t *n, const sockaddr_t *sa); -#endif /* __TINC_NODE_H__ */ +#endif