33f241d978
Conflicts: NEWS configure.in doc/tincd.8.in lib/pidfile.c lib/pidfile.h lib/xalloc.h lib/xmalloc.c src/conf.c src/conf.h src/connection.c src/connection.h src/event.c src/graph.c src/graph.h src/net.c src/net.h src/node.h src/openssl/crypto.c src/process.c src/protocol.c src/protocol_key.c src/route.c
160 lines
4.6 KiB
C
160 lines
4.6 KiB
C
/*
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net.h -- header for net.c
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Copyright (C) 1998-2005 Ivo Timmermans
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2000-2009 Guus Sliepen <guus@tinc-vpn.org>
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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_NET_H__
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#define __TINC_NET_H__
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#include "ipv6.h"
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#include "cipher.h"
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#include "digest.h"
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#ifdef ENABLE_JUMBOGRAMS
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#define MTU 9018 /* 9000 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
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#else
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#define MTU 1518 /* 1500 bytes payload + 14 bytes ethernet header + 4 bytes VLAN tag */
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#endif
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#define MAXSIZE (MTU + 4 + CIPHER_MAX_BLOCK_SIZE + DIGEST_MAX_SIZE + MTU/64 + 20) /* MTU + seqno + padding + HMAC + compressor overhead */
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#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128) /* Enough room for a request with a MAXSIZEd packet or a 8192 bits RSA key */
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#define MAXSOCKETS 8 /* Probably overkill... */
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typedef struct mac_t {
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uint8_t x[6];
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} mac_t;
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typedef struct ipv4_t {
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uint8_t x[4];
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} ipv4_t;
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typedef struct ipv6_t {
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uint16_t x[8];
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} ipv6_t;
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typedef short length_t;
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#define AF_UNKNOWN 255
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struct sockaddr_unknown {
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uint16_t family;
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uint16_t pad1;
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uint32_t pad2;
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char *address;
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char *port;
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};
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typedef union sockaddr_t {
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struct sockaddr sa;
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struct sockaddr_in in;
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struct sockaddr_in6 in6;
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struct sockaddr_unknown unknown;
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#ifdef HAVE_STRUCT_SOCKADDR_STORAGE
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struct sockaddr_storage storage;
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#endif
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} sockaddr_t;
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#ifdef SA_LEN
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#define SALEN(s) SA_LEN(&s)
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#else
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#define SALEN(s) (s.sa_family==AF_INET?sizeof(struct sockaddr_in):sizeof(struct sockaddr_in6))
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#endif
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typedef struct vpn_packet_t {
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length_t len; /* the actual number of bytes in the `data' field */
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int priority; /* priority or TOS */
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uint32_t seqno; /* 32 bits sequence number (network byte order of course) */
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uint8_t data[MAXSIZE];
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} vpn_packet_t;
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typedef struct listen_socket_t {
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struct event ev_tcp;
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struct event ev_udp;
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int tcp;
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int udp;
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sockaddr_t sa;
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} listen_socket_t;
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#include "conf.h"
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#include "list.h"
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typedef struct outgoing_t {
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char *name;
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int timeout;
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struct config_t *cfg;
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struct addrinfo *ai;
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struct addrinfo *aip;
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struct event ev;
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} outgoing_t;
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extern list_t *outgoing_list;
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extern int maxoutbufsize;
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extern int seconds_till_retry;
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extern int addressfamily;
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extern unsigned replaywin;
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extern listen_socket_t listen_socket[MAXSOCKETS];
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extern int listen_sockets;
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extern int keylifetime;
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extern int udp_rcvbuf;
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extern int udp_sndbuf;
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extern bool do_prune;
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extern char *myport;
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extern int contradicting_add_edge;
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extern int contradicting_del_edge;
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/* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
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#include "connection.h"
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#include "node.h"
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extern void retry_outgoing(outgoing_t *);
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extern void handle_incoming_vpn_data(int, short, void *);
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extern void finish_connecting(struct connection_t *);
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extern bool do_outgoing_connection(struct connection_t *);
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extern void handle_new_meta_connection(int, short, void *);
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extern int setup_listen_socket(const sockaddr_t *);
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extern int setup_vpn_in_socket(const sockaddr_t *);
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extern void send_packet(struct node_t *, vpn_packet_t *);
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extern void receive_tcppacket(struct connection_t *, const char *, int);
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extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
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extern bool setup_network(void);
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extern void setup_outgoing_connection(struct outgoing_t *);
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extern void try_outgoing_connections(void);
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extern void close_network_connections(void);
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extern int main_loop(void);
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extern void terminate_connection(struct connection_t *, bool);
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extern void flush_queue(struct node_t *);
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extern bool read_rsa_public_key(struct connection_t *);
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extern void send_mtu_probe(struct node_t *);
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extern void handle_device_data(int, short, void *);
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extern void handle_meta_connection_data(int, short, void *);
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extern void regenerate_key(void);
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extern void purge(void);
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extern void retry(void);
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extern int reload_configuration(void);
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extern void load_all_subnets(void);
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#ifndef HAVE_MINGW
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#define closesocket(s) close(s)
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#else
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extern CRITICAL_SECTION mutex;
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#endif
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#endif /* __TINC_NET_H__ */
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