along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net.h,v 1.9.4.54 2002/09/10 22:12:33 guus Exp $
+ $Id: net.h,v 1.9.4.60 2003/07/06 23:16:28 guus Exp $
*/
#ifndef __TINC_NET_H__
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/time.h>
+#include <openssl/evp.h>
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#ifdef ENABLE_JUMBOGRAMS
#define MTU 9014 /* 9000 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 9100 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
-#define MAXBUFSIZE 9100 /* Must support TCP packets of length 9000. */
#else
#define MTU 1514 /* 1500 bytes payload + 14 bytes ethernet header */
-#define MAXSIZE 1600 /* MTU + header (seqno) and trailer (CBC padding and HMAC) */
-#define MAXBUFSIZE 2100 /* Quite large but needed for support of keys up to 8192 bits. */
#endif
+#define MAXSIZE (MTU + 4 + EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + MTU/64 + 20) /* MTU + seqno + padding + HMAC + compressor overhead */
+#define MAXBUFSIZE ((MAXSIZE > 2048 ? MAXSIZE : 2048) + 128) /* Enough room for a request with a MAXSIZEd packet or a 8192 bits RSA key */
+
#define MAXSOCKETS 128 /* Overkill... */
#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
uint16_t x[8];
} ipv6_t;
-typedef unsigned short port_t;
-
typedef short length_t;
typedef union {
struct sockaddr sa;
struct sockaddr_in in;
+#ifdef HAVE_STRUCT_SOCKADDR_IN6
struct sockaddr_in6 in6;
+#endif
} sockaddr_t;
#ifdef SA_LEN
#define SALEN(s) SA_LEN(&s)
#else
+#ifdef HAVE_STRUCT_SOCKADDR_IN6
#define SALEN(s) (s.sa_family==AF_INET?sizeof(struct sockaddr_in):sizeof(struct sockaddr_in6))
+#else
+#define SALEN(s) (sizeof sockaddr_in)
+#endif
#endif
typedef struct vpn_packet_t {
extern int seconds_till_retry;
extern int addressfamily;
-extern char *request_name[];
-extern char *status_text[];
-
#include "connection.h" /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
extern listen_socket_t listen_socket[MAXSOCKETS];
extern int do_purge;
extern char *myport;
extern time_t now;
+extern EVP_CIPHER_CTX packet_ctx;
extern void retry_outgoing(outgoing_t *);
extern void handle_incoming_vpn_data(int);
extern int setup_listen_socket(sockaddr_t *);
extern int setup_vpn_in_socket(sockaddr_t *);
extern void send_packet(struct node_t *, vpn_packet_t *);
-extern void receive_packet(struct node_t *, vpn_packet_t *);
extern void receive_tcppacket(struct connection_t *, char *, int);
extern void broadcast_packet(struct node_t *, vpn_packet_t *);
extern int setup_network_connections(void);