+#ifndef TINC_NODE_H
+#define TINC_NODE_H
+
/*
node.h -- header for node.c
Copyright (C) 2001-2013 Guus Sliepen <guus@tinc-vpn.org>,
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"
-
-typedef struct node_status_t {
- unsigned int unused_active:1; /* 1 if active (not used for nodes) */
- unsigned int validkey:1; /* 1 if we currently have a valid key for him */
- unsigned int waitingforkey:1; /* 1 if we already sent out a request */
- unsigned int visited:1; /* 1 if this node has been visited by one of the graph algorithms */
- unsigned int reachable:1; /* 1 if this node is reachable in the graph */
- unsigned int indirect:1; /* 1 if this node is not directly reachable by us */
- unsigned int sptps:1; /* 1 if this node supports SPTPS */
- unsigned int udp_confirmed:1; /* 1 if the address is one that we received UDP traffic on */
- unsigned int send_locally:1; /* 1 if the next UDP packet should be sent on the local network */
- unsigned int validkey_in; /* 1 if we have sent a valid key to him */
- unsigned int unused:22;
+#include "compression.h"
+
+typedef union node_status_t {
+ struct {
+ 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 value;
} node_status_t;
typedef struct node_t {
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 */
- int sock; /* Socket to use for outgoing UDP packets */
+ size_t sock; /* Socket to use for outgoing UDP packets */
sockaddr_t address; /* his real (internet) ip to send UDP packets to */
- char *hostname; /* the hostname of its real ip */
node_status_t status;
time_t last_state_change;
digest_t *outdigest; /* Digest for UDP packets */
#endif
- int incompression; /* Compressionlevel, 0 = no compression */
- int outcompression; /* Compressionlevel, 0 = no compression */
+ compression_level_t incompression; /* Compression level, 0 = no compression */
+ compression_level_t outcompression; /* Compression level, 0 = no compression */
int distance;
+ int weighted_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 */
- splay_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */
+ splay_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 */
+ splay_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) */
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 prev_received_seqno;
- uint32_t prev_received;
uint32_t farfuture; /* Packets in a row that have arrived from the far future */
- unsigned char* late; /* Bitfield marking late packets */
+ uint8_t *late; /* Bitfield marking late packets */
- struct timeval udp_ping_sent; /* Last time a ping probe was sent */
+ 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 */
- struct timeval probe_sent_time; /* Time the last probe was sent */
- struct timeval probe_time; /* Time the last probe was sent or received */
- int probe_counter; /* Number of probes received since last burst was sent */
- float rtt; /* Last measured round trip time */
- float packetloss; /* Last measured packet loss rate */
uint64_t in_packets;
uint64_t in_bytes;
uint64_t out_packets;
uint64_t out_bytes;
+
+ struct address_cache_t *address_cache;
} node_t;
extern struct node_t *myself;
-extern splay_tree_t *node_tree;
+extern splay_tree_t node_tree;
-extern void init_nodes(void);
extern void exit_nodes(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_id(const node_id_t *);
-extern node_t *lookup_node_udp(const sockaddr_t *);
-extern bool dump_nodes(struct connection_t *);
-extern bool dump_traffic(struct connection_t *);
-extern void update_node_udp(node_t *, const sockaddr_t *);
-
-#endif /* __TINC_NODE_H__ */
+extern void free_node(node_t *n);
+extern node_t *new_node(const char *name) ATTR_MALLOC ATTR_DEALLOCATOR(free_node);
+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
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