-typedef struct real_packet_t {
- length_t len; /* the length of the entire packet */
- ip_t from; /* where the packet came from */
- vpn_packet_t data; /* encrypted vpn_packet_t */
-} real_packet_t;
-
-typedef struct passphrase_t {
- unsigned short len;
- unsigned char *phrase;
-} passphrase_t;
-
-typedef struct status_bits_t {
- int pinged:1; /* sent ping */
- int got_pong:1; /* received pong */
- int meta:1; /* meta connection exists */
- int active:1; /* 1 if active.. */
- int outgoing:1; /* I myself asked for this conn */
- int termreq:1; /* the termination of this connection was requested */
- int remove:1; /* Set to 1 if you want this connection removed */
- int timeout:1; /* 1 if gotten timeout */
- int validkey:1; /* 1 if we currently have a valid key for him */
- int waitingforkey:1; /* 1 if we already sent out a request */
- int dataopen:1; /* 1 if we have a valid UDP connection open */
- int unused:21;
-} status_bits_t;
-
-typedef struct queue_element_t {
- void *packet;
- struct queue_element_t *prev;
- struct queue_element_t *next;
-} queue_element_t;
-
-typedef struct packet_queue_t {
- queue_element_t *head;
- queue_element_t *tail;
-} packet_queue_t;
-
-typedef struct enc_key_t {
- int length;
- char *key;
- time_t expiry;
-} enc_key_t;
-
-typedef struct conn_list_t {
- ip_t vpn_ip; /* his vpn ip */
- ip_t vpn_mask; /* his vpn network address */
- ip_t real_ip; /* his real (internet) ip */
- char *real_hostname; /* the hostname of its real ip */
- char *vpn_hostname; /* the hostname of the vpn 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 */
- status_bits_t status; /* status info */
- passphrase_t *pp; /* encoded passphrase */
- packet_queue_t *sq; /* pending outgoing packets */
- packet_queue_t *rq; /* pending incoming packets (they have no
- valid key to be decrypted with) */
- enc_key_t *public_key; /* the other party's public key */
- enc_key_t *key; /* encrypt with this key */
- 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;
-
-extern int tap_fd;
-
-extern int total_tap_in;
-extern int total_tap_out;
-extern int total_socket_in;
-extern int total_socket_out;
-
-extern conn_list_t *conn_list;
-extern conn_list_t *myself;
-
-extern int send_packet(ip_t, vpn_packet_t *);
-extern int setup_network_connections(void);
+/* Packet types when using SPTPS */
+
+#define PKT_COMPRESSED 1
+#define PKT_MAC 2
+#define PKT_PROBE 4
+
+typedef enum packet_type_t {
+ PACKET_NORMAL,
+ PACKET_COMPRESSED,
+ PACKET_PROBE
+} packet_type_t;
+
+typedef struct listen_socket_t {
+ io_t tcp;
+ io_t udp;
+ sockaddr_t sa;
+ bool bindto;
+} listen_socket_t;
+
+#include "conf.h"
+#include "list.h"
+
+typedef struct outgoing_t {
+ char *name;
+ int timeout;
+ splay_tree_t *config_tree;
+ struct config_t *cfg;
+ struct addrinfo *ai;
+ struct addrinfo *aip;
+ timeout_t ev;
+} outgoing_t;
+
+extern list_t *outgoing_list;
+
+extern int maxoutbufsize;
+extern int seconds_till_retry;
+extern int addressfamily;
+extern unsigned replaywin;
+extern bool localdiscovery;
+
+extern listen_socket_t listen_socket[MAXSOCKETS];
+extern int listen_sockets;
+extern io_t unix_socket;
+extern int keylifetime;
+extern int udp_rcvbuf;
+extern int udp_sndbuf;
+extern int max_connection_burst;
+extern bool do_prune;
+extern char *myport;
+extern bool device_standby;
+extern bool autoconnect;
+extern bool disablebuggypeers;
+extern int contradicting_add_edge;
+extern int contradicting_del_edge;
+extern time_t last_config_check;
+
+extern char *proxyhost;
+extern char *proxyport;
+extern char *proxyuser;
+extern char *proxypass;
+typedef enum proxytype_t {
+ PROXY_NONE = 0,
+ PROXY_SOCKS4,
+ PROXY_SOCKS4A,
+ PROXY_SOCKS5,
+ PROXY_HTTP,
+ PROXY_EXEC,
+} proxytype_t;
+extern proxytype_t proxytype;
+
+extern char *scriptinterpreter;
+extern char *scriptextension;
+
+/* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */
+#include "connection.h"
+#include "node.h"
+
+extern void retry_outgoing(outgoing_t *);
+extern void handle_incoming_vpn_data(void *, int);
+extern void finish_connecting(struct connection_t *);
+extern bool do_outgoing_connection(struct outgoing_t *);
+extern void handle_new_meta_connection(void *, int);
+extern void handle_new_unix_connection(void *, int);
+extern int setup_listen_socket(const sockaddr_t *);
+extern int setup_vpn_in_socket(const sockaddr_t *);
+extern bool send_sptps_data(void *handle, uint8_t type, const char *data, size_t len);
+extern bool receive_sptps_record(void *handle, uint8_t type, const char *data, uint16_t len);
+extern void send_packet(struct node_t *, vpn_packet_t *);
+extern void receive_tcppacket(struct connection_t *, const char *, int);
+extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
+extern char *get_name(void);
+extern void device_enable(void);
+extern void device_disable(void);
+extern bool setup_myself_reloadable(void);
+extern bool setup_network(void);
+extern void setup_outgoing_connection(struct outgoing_t *);
+extern void try_outgoing_connections(void);