X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Fnode.h;h=ff8b3335ba70740830a08d70f8e51245f315a32c;hp=662ad68311b7ad0e53b8ac138fd9c038a4339f35;hb=963c5055505f2fc117cd5efa06eaa02c9b2bf85d;hpb=eef25266cb862b5e2c24450d158d99e3cb43e511 diff --git a/src/node.h b/src/node.h index 662ad683..ff8b3335 100644 --- a/src/node.h +++ b/src/node.h @@ -1,7 +1,9 @@ +#ifndef MESHLINK_NODE_H +#define MESHLINK_NODE_H + /* node.h -- header for node.c - Copyright (C) 2001-2012 Guus Sliepen , - 2001-2005 Ivo Timmermans + Copyright (C) 2014, 2017 Guus Sliepen 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 @@ -18,94 +20,93 @@ 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 "sockaddr.h" +#include "sptps.h" +#include "utcp/utcp.h" +#include "submesh.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 unused:24; + uint16_t validkey: 1; /* 1 if we currently have a valid key for him */ + uint16_t waitingforkey: 1; /* 1 if we already sent out a request */ + uint16_t visited: 1; /* 1 if this node has been visited by one of the graph algorithms */ + uint16_t reachable: 1; /* 1 if this node is reachable in the graph */ + uint16_t udp_confirmed: 1; /* 1 if the address is one that we received UDP traffic on */ + uint16_t broadcast: 1; /* 1 if the next UDP packet should be broadcast to the local network */ + uint16_t blacklisted: 1; /* 1 if the node is blacklist so we never want to speak with him anymore */ + uint16_t destroyed: 1; /* 1 if the node is being destroyed, deallocate channels when any callback is triggered */ + uint16_t duplicate: 1; /* 1 if the node is duplicate, ie. multiple nodes using the same Name are online */ + uint16_t dirty: 1; /* 1 if the configuration of the node is dirty and needs to be written out */ + uint16_t want_udp: 1; /* 1 if we want working UDP because we have data to send */ } node_status_t; +#define MAX_RECENT 5 + typedef struct node_t { + // Public member variables char *name; /* name of this node */ - uint32_t options; /* options turned on for this node */ - - int 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 */ + void *priv; + // Private member variables node_status_t status; - time_t last_state_change; - time_t last_req_key; + uint16_t minmtu; /* Probed minimum MTU */ + dev_class_t devclass; - ecdsa_t ecdsa; /* His public ECDSA key */ + // Used for packet I/O + int sock; /* Socket to use for outgoing UDP packets */ + uint32_t session_id; /* Unique ID for this node's currently running process */ sptps_t sptps; + sockaddr_t address; /* his real (internet) ip to send UDP packets to */ - cipher_t incipher; /* Cipher for UDP packets */ - digest_t indigest; /* Digest for UDP packets */ + struct utcp *utcp; - cipher_t outcipher; /* Cipher for UDP packets */ - digest_t outdigest; /* Digest for UDP packets */ + // Traffic counters + uint64_t in_packets; + uint64_t in_bytes; + uint64_t out_packets; + uint64_t out_bytes; - int incompression; /* Compressionlevel, 0 = no compression */ - int outcompression; /* Compressionlevel, 0 = no compression */ + // MTU probes + timeout_t mtutimeout; /* Probe event */ + int mtuprobes; /* Number of probes */ + uint16_t mtu; /* Maximum size of packets to send to this node */ + uint16_t maxmtu; /* Probed maximum MTU */ - 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 */ + // Used for meta-connection I/O, timeouts + struct meshlink_handle *mesh; /* The mesh this node belongs to */ + struct submesh_t *submesh; /* Nodes Sub-Mesh Handle*/ - splay_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */ + time_t last_req_key; - splay_tree_t *edge_tree; /* Edges with this node as one of the endpoints */ + struct ecdsa *ecdsa; /* His public ECDSA key */ struct connection_t *connection; /* Connection associated with this node (if a direct connection exists) */ + time_t last_connect_try; + time_t last_successfull_connection; - 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 */ - unsigned char* late; /* Bitfield marking late packets */ + char *canonical_address; /* The canonical address of this node, if known */ + sockaddr_t recent[MAX_RECENT]; /* Recently seen addresses */ - 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 */ - timeout_t mtutimeout; /* Probe event */ + // Graph-related member variables + time_t last_reachable; + time_t last_unreachable; - uint64_t in_packets; - uint64_t in_bytes; - uint64_t out_packets; - uint64_t out_bytes; + int distance; + struct node_t *nexthop; /* nearest node from us to him */ + struct edge_t *prevedge; /* nearest node from him to us */ + + struct splay_tree_t *edge_tree; /* Edges with this node as one of the endpoints */ } node_t; -extern struct node_t *myself; -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_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 init_nodes(struct meshlink_handle *mesh); +extern void exit_nodes(struct meshlink_handle *mesh); +extern node_t *new_node(void) __attribute__((__malloc__)); +extern void free_node(node_t *n); +extern void node_add(struct meshlink_handle *mesh, node_t *n); +extern void node_del(struct meshlink_handle *mesh, node_t *n); +extern node_t *lookup_node(struct meshlink_handle *mesh, const char *name) __attribute__((__warn_unused_result__)); +extern node_t *lookup_node_udp(struct meshlink_handle *mesh, const sockaddr_t *sa) __attribute__((__warn_unused_result__)); +extern void update_node_udp(struct meshlink_handle *mesh, node_t *n, const sockaddr_t *sa); +extern bool node_add_recent_address(struct meshlink_handle *mesh, node_t *n, const sockaddr_t *addr); + +#endif