/*
meshlink_internal.h -- Internal parts of the public API.
- Copyright (C) 2014, 2017 Guus Sliepen <guus@meshlink.io>
+ Copyright (C) 2014-2019 Guus Sliepen <guus@meshlink.io>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#ifdef MESHLINK_H
+#error You must not include both meshlink.h and meshlink_internal.h!
+#endif
+
#include "system.h"
#include "event.h"
#include <pthread.h>
-#define MAXSOCKETS 8 /* Probably overkill... */
+#define MAXSOCKETS 4 /* Probably overkill... */
static const char meshlink_invitation_label[] = "MeshLink invitation";
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
+
struct CattaServer;
struct CattaSServiceBrowser;
struct CattaSimplePoll;
PROXY_HTTP,
} proxytype_t;
-/// A handle for an instance of MeshLink.
-struct meshlink_handle {
- char *name;
- void *priv;
-
+struct meshlink_open_params {
+ char *confbase;
char *appname;
+ char *name;
dev_class_t devclass;
- char *confbase;
+ int netns;
- meshlink_receive_cb_t receive_cb;
- meshlink_node_status_cb_t node_status_cb;
- meshlink_log_cb_t log_cb;
- meshlink_log_level_t log_level;
+ const void *key;
+ size_t keylen;
+};
- meshlink_channel_accept_cb_t channel_accept_cb;
+/// A handle for an instance of MeshLink.
+struct meshlink_handle {
+ // public members
+ char *name;
+ void *priv;
- pthread_t thread;
- bool threadstarted;
+ // private members
pthread_mutex_t mesh_mutex;
event_loop_t loop;
- listen_socket_t listen_socket[MAXSOCKETS];
+ struct node_t *self;
+ meshlink_log_cb_t log_cb;
+ meshlink_log_level_t log_level;
+
+ // The most important network-related members come first
int listen_sockets;
+ listen_socket_t listen_socket[MAXSOCKETS];
+
+ meshlink_receive_cb_t receive_cb;
+ meshlink_queue_t outpacketqueue;
signal_t datafromapp;
- struct node_t *self;
+ hash_t *node_udp_cache;
- struct splay_tree_t *config;
- struct splay_tree_t *edges;
struct splay_tree_t *nodes;
+ struct splay_tree_t *edges;
struct list_t *connections;
struct list_t *outgoings;
+ struct list_t *submeshes;
- meshlink_queue_t outpacketqueue;
-
+ // Meta-connection-related members
struct splay_tree_t *past_request_tree;
timeout_t past_request_timeout;
timeout_t pingtimer;
timeout_t periodictimer;
- char *myport;
-
- char *proxyhost;
- char *proxyport;
- char *proxyuser;
- char *proxypass;
- proxytype_t proxytype;
+ struct connection_t *everyone;
- bool discovery; // Whether Catta is enabled or not
- bool localdiscovery;
- sockaddr_t localdiscovery_address;
+ // Infrequently used callbacks
+ meshlink_node_status_cb_t node_status_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;
- bool default_blacklist;
+ // Mesh parameters
+ char *appname;
+ char *myport;
- hash_t *node_udp_cache;
- struct connection_t *everyone;
+ struct ecdsa *private_key;
struct ecdsa *invitation_key;
- int invitation_timeout;
+ int32_t devclass;
+
+ int invitation_timeout;
int pinginterval; /* seconds between pings */
int pingtimeout; /* seconds to wait for response */
int maxtimeout;
- int sock;
- sptps_t sptps;
- char cookie[18], hash[18];
- char *data;
- size_t thedatalen;
- bool success;
- char line[4096];
- char buffer[4096];
- size_t blen;
+ int netns;
- pthread_t discovery_thread;
+ bool default_blacklist;
+ bool discovery; // Whether Catta is enabled or not
+
+
+ // Configuration
+ char *confbase;
+ FILE *conffile;
+ void *config_key;
+
+ // Thread management
+ pthread_t thread;
+ bool threadstarted;
bool discovery_threadstarted;
+
+ // Catta
+ pthread_t discovery_thread;
struct CattaServer *catta_server;
struct CattaSServiceBrowser *catta_browser;
struct CattaSimplePoll *catta_poll;
struct CattaSEntryGroup *catta_group;
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];
+
+ // Unused variables
+ char *proxyhost;
+ char *proxyport;
+ char *proxyuser;
+ char *proxypass;
+ proxytype_t proxytype;
+ sockaddr_t localdiscovery_address;
+ bool localdiscovery;
};
/// A handle for a MeshLink node.
void *priv;
};
+/// A handle for a node Sub-Mesh.
+struct meshlink_submesh {
+ const char *name;
+ void *priv;
+};
+
/// A channel.
struct meshlink_channel {
struct node_t *node;
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);
/// Device class traits
typedef struct {
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