#include "meshlink_queue.h"
#include "sockaddr.h"
#include "sptps.h"
+#include "xoshiro.h"
#include <pthread.h>
static const char meshlink_tcp_label[] = "MeshLink TCP";
static const char meshlink_udp_label[] = "MeshLink UDP";
-#define MESHLINK_CONFIG_VERSION 1
-#define MESHLINK_INVITATION_VERSION 1
+#define MESHLINK_CONFIG_VERSION 2
+#define MESHLINK_INVITATION_VERSION 2
struct CattaServer;
struct CattaSServiceBrowser;
struct io_t tcp;
struct io_t udp;
sockaddr_t sa;
- bool bindto;
+ sockaddr_t broadcast_sa;
} listen_socket_t;
-typedef enum proxytype_t {
- PROXY_NONE = 0,
- PROXY_SOCKS4,
- PROXY_SOCKS4A,
- PROXY_SOCKS5,
- PROXY_HTTP,
-} proxytype_t;
-
struct meshlink_open_params {
char *confbase;
char *appname;
size_t keylen;
};
+/// Device class traits
+typedef struct {
+ int pinginterval;
+ int pingtimeout;
+ int fast_retry_period;
+ unsigned int min_connects;
+ unsigned int max_connects;
+ int edge_weight;
+} dev_class_traits_t;
+
/// A handle for an instance of MeshLink.
struct meshlink_handle {
// public members
void *priv;
// private members
- pthread_mutex_t mesh_mutex;
+ pthread_mutex_t mutex;
event_loop_t loop;
struct node_t *self;
meshlink_log_cb_t log_cb;
meshlink_log_level_t log_level;
+ void *packet;
// The most important network-related members come first
+ int reachable;
int listen_sockets;
listen_socket_t listen_socket[MAXSOCKETS];
struct splay_tree_t *past_request_tree;
timeout_t past_request_timeout;
+ int connection_burst;
int contradicting_add_edge;
int contradicting_del_edge;
int sleeptime;
- time_t last_config_check;
+ time_t connection_burst_time;
+ time_t last_hard_try;
+ time_t last_unreachable;
timeout_t pingtimer;
timeout_t periodictimer;
struct connection_t *everyone;
+ uint64_t prng_state[4];
+ uint32_t session_id;
+
+ int next_pit;
+ int pits[10];
// Infrequently used callbacks
meshlink_node_status_cb_t node_status_cb;
+ meshlink_node_pmtu_cb_t node_pmtu_cb;
meshlink_channel_accept_cb_t channel_accept_cb;
meshlink_node_duplicate_cb_t node_duplicate_cb;
meshlink_connection_try_cb_t connection_try_cb;
+ meshlink_error_cb_t error_cb;
// Mesh parameters
char *appname;
struct ecdsa *private_key;
struct ecdsa *invitation_key;
- int32_t devclass;
+ dev_class_t devclass;
int invitation_timeout;
- int pinginterval; /* seconds between pings */
- int pingtimeout; /* seconds to wait for response */
int maxtimeout;
+ int udp_choice;
+
+ dev_class_traits_t dev_class_traits[DEV_CLASS_COUNT];
int netns;
bool default_blacklist;
bool discovery; // Whether Catta is enabled or not
-
+ bool inviter_commits_first;
// Configuration
char *confbase;
- FILE *conffile;
+ FILE *lockfile;
void *config_key;
+ char *external_address_url;
+ struct list_t *invitation_addresses;
// Thread management
pthread_t thread;
+ pthread_cond_t cond;
+ pthread_mutex_t discovery_mutex;
+ pthread_cond_t discovery_cond;
bool threadstarted;
bool discovery_threadstarted;
char *catta_servicetype;
unsigned int catta_interfaces;
- // State used for meshlink_join()
- int sock;
- char cookie[18], hash[18];
- bool success;
- sptps_t sptps;
- char *data;
- size_t thedatalen;
- size_t blen;
- char line[4096];
- char buffer[4096];
-
- // Proxy configuration, currently not exposed.
- char *proxyhost;
- char *proxyport;
- char *proxyuser;
- char *proxypass;
- proxytype_t proxytype;
+ // ADNS
+ pthread_t adns_thread;
+ pthread_cond_t adns_cond;
+ meshlink_queue_t adns_queue;
+ meshlink_queue_t adns_done_queue;
+ signal_t adns_signal;
};
/// A handle for a MeshLink node.
void *priv;
};
+/// An AIO buffer.
+typedef struct meshlink_aio_buffer {
+ const void *data;
+ int fd;
+ size_t len;
+ size_t done;
+ union {
+ meshlink_aio_cb_t buffer;
+ meshlink_aio_fd_cb_t fd;
+ } cb;
+ void *priv;
+ struct meshlink_aio_buffer *next;
+} meshlink_aio_buffer_t;
+
/// A channel.
struct meshlink_channel {
struct node_t *node;
void *priv;
+ bool in_callback;
struct utcp_connection *c;
+ meshlink_aio_buffer_t *aio_send;
+ meshlink_aio_buffer_t *aio_receive;
meshlink_channel_receive_cb_t receive_cb;
meshlink_channel_poll_cb_t poll_cb;
};
uint8_t source[16];
} __attribute__((__packed__)) meshlink_packethdr_t;
-extern void meshlink_send_from_queue(event_loop_t *el, meshlink_handle_t *mesh);
-extern void update_node_status(meshlink_handle_t *mesh, struct node_t *n);
+void meshlink_send_from_queue(event_loop_t *loop, void *mesh);
+void update_node_status(meshlink_handle_t *mesh, struct node_t *n);
+void update_node_pmtu(meshlink_handle_t *mesh, struct node_t *n);
extern meshlink_log_level_t global_log_level;
extern meshlink_log_cb_t global_log_cb;
-extern int check_port(meshlink_handle_t *mesh);
-extern void handle_duplicate_node(meshlink_handle_t *mesh, struct node_t *n);
-extern void handle_network_change(meshlink_handle_t *mesh, bool online);
+void handle_duplicate_node(meshlink_handle_t *mesh, struct node_t *n);
+void handle_network_change(meshlink_handle_t *mesh, bool online);
+void call_error_cb(meshlink_handle_t *mesh, meshlink_errno_t meshlink_errno);
-/// Device class traits
-typedef struct {
- unsigned int min_connects;
- unsigned int max_connects;
- int edge_weight;
-} dev_class_traits_t;
+/// Per-instance PRNG
+static inline int prng(meshlink_handle_t *mesh, uint64_t max) {
+ return xoshiro(mesh->prng_state) % max;
+}
-extern dev_class_traits_t dev_class_traits[];
+/// Fudge value of ~0.1 seconds, in microseconds.
+static const unsigned int TIMER_FUDGE = 0x8000000;
#endif