9b9230a0a7
This gets rid of the rest of the symbolic links. However, as a consequence, the crypto header files have now moved to src/, and can no longer contain library-specific declarations. Therefore, cipher_t, digest_t, ecdh_t, ecdsa_t and rsa_t are now all opaque types, and only pointers to those types can be used.
118 lines
5.2 KiB
C
118 lines
5.2 KiB
C
/*
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node.h -- header for node.c
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Copyright (C) 2001-2013 Guus Sliepen <guus@tinc-vpn.org>,
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2001-2005 Ivo Timmermans
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __TINC_NODE_H__
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#define __TINC_NODE_H__
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#include "splay_tree.h"
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#include "cipher.h"
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#include "connection.h"
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#include "digest.h"
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#include "event.h"
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#include "subnet.h"
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typedef struct node_status_t {
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unsigned int unused_active:1; /* 1 if active (not used for nodes) */
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unsigned int validkey:1; /* 1 if we currently have a valid key for him */
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unsigned int waitingforkey:1; /* 1 if we already sent out a request */
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unsigned int visited:1; /* 1 if this node has been visited by one of the graph algorithms */
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unsigned int reachable:1; /* 1 if this node is reachable in the graph */
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unsigned int indirect:1; /* 1 if this node is not directly reachable by us */
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unsigned int sptps:1; /* 1 if this node supports SPTPS */
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unsigned int udp_confirmed:1; /* 1 if the address is one that we received UDP traffic on */
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unsigned int unused:24;
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} node_status_t;
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typedef struct node_t {
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char *name; /* name of this node */
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uint32_t options; /* options turned on for this node */
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int sock; /* Socket to use for outgoing UDP packets */
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sockaddr_t address; /* his real (internet) ip to send UDP packets to */
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char *hostname; /* the hostname of its real ip */
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node_status_t status;
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time_t last_state_change;
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time_t last_req_key;
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ecdsa_t *ecdsa; /* His public ECDSA key */
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sptps_t sptps;
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cipher_t *incipher; /* Cipher for UDP packets */
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digest_t *indigest; /* Digest for UDP packets */
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cipher_t *outcipher; /* Cipher for UDP packets */
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digest_t *outdigest; /* Digest for UDP packets */
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int incompression; /* Compressionlevel, 0 = no compression */
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int outcompression; /* Compressionlevel, 0 = no compression */
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int distance;
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struct node_t *nexthop; /* nearest node from us to him */
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struct edge_t *prevedge; /* nearest node from him to us */
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struct node_t *via; /* next hop for UDP packets */
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splay_tree_t *subnet_tree; /* Pointer to a tree of subnets belonging to this node */
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splay_tree_t *edge_tree; /* Edges with this node as one of the endpoints */
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struct connection_t *connection; /* Connection associated with this node (if a direct connection exists) */
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uint32_t sent_seqno; /* Sequence number last sent to this node */
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uint32_t received_seqno; /* Sequence number last received from this node */
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uint32_t received; /* Total valid packets received from this node */
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uint32_t prev_received_seqno;
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uint32_t prev_received;
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uint32_t farfuture; /* Packets in a row that have arrived from the far future */
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unsigned char* late; /* Bitfield marking late packets */
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length_t mtu; /* Maximum size of packets to send to this node */
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length_t minmtu; /* Probed minimum MTU */
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length_t maxmtu; /* Probed maximum MTU */
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int mtuprobes; /* Number of probes */
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timeout_t mtutimeout; /* Probe event */
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struct timeval probe_time; /* Time the last probe was sent or received */
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int probe_counter; /* Number of probes received since last burst was sent */
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float rtt; /* Last measured round trip time */
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float bandwidth; /* Last measured bandwidth */
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float packetloss; /* Last measured packet loss rate */
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uint64_t in_packets;
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uint64_t in_bytes;
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uint64_t out_packets;
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uint64_t out_bytes;
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} node_t;
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extern struct node_t *myself;
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extern splay_tree_t *node_tree;
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extern void init_nodes(void);
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extern void exit_nodes(void);
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extern node_t *new_node(void) __attribute__ ((__malloc__));
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extern void free_node(node_t *);
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extern void node_add(node_t *);
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extern void node_del(node_t *);
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extern node_t *lookup_node(char *);
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extern node_t *lookup_node_udp(const sockaddr_t *);
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extern bool dump_nodes(struct connection_t *);
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extern bool dump_traffic(struct connection_t *);
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extern void update_node_udp(node_t *, const sockaddr_t *);
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#endif /* __TINC_NODE_H__ */
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