#define MAXBUFSIZE 2048 /* Probably way too much, but it must fit every possible request. */
+/* flags */
+#define INDIRECTDATA 0x0001 /* Used to indicate that this host has to be reached indirect */
+#define EXPORTINDIRECTDATA 0x0002 /* Used to indicate uplink that it has to tell others to do INDIRECTDATA */
+
typedef unsigned long ip_t;
typedef short length_t;
ip_t real_ip; /* his real (internet) ip */
char *hostname; /* the hostname of its real ip */
short unsigned int port; /* his portnumber */
+ int flags; /* his flags */
int socket; /* our udp vpn socket */
int meta_socket; /* our tcp meta socket */
int protocol_version; /* used protocol */
char buffer[MAXBUFSIZE+1]; /* metadata input buffer */
int buflen; /* bytes read into buffer */
int reqlen; /* length of first request in buffer */
+ time_t last_ping_time; /* last time we saw some activity from the other end */
+ int want_ping; /* 0 if there's no need to check for activity */
struct conn_list_t *nexthop; /* nearest meta-hop in this direction */
struct conn_list_t *next; /* after all, it's a list of connections */
} conn_list_t;