1 #ifndef MESHLINK_INTERNAL_H
2 #define MESHLINK_INTERNAL_H
5 meshlink_internal.h -- Internal parts of the public API.
6 Copyright (C) 2014, 2017 Guus Sliepen <guus@meshlink.io>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #include "meshlink_queue.h"
34 #define MAXSOCKETS 8 /* Probably overkill... */
36 static const char meshlink_invitation_label[] = "MeshLink invitation";
37 static const char meshlink_tcp_label[] = "MeshLink TCP";
38 static const char meshlink_udp_label[] = "MeshLink UDP";
40 #define MESHLINK_CONFIG_VERSION 1
41 #define MESHLINK_INVITATION_VERSION 1
44 struct CattaSServiceBrowser;
45 struct CattaSimplePoll;
46 struct CattaSEntryGroup;
48 typedef struct listen_socket_t {
55 typedef enum proxytype_t {
63 /// A handle for an instance of MeshLink.
64 struct meshlink_handle {
74 meshlink_receive_cb_t receive_cb;
75 meshlink_node_status_cb_t node_status_cb;
76 meshlink_log_cb_t log_cb;
77 meshlink_log_level_t log_level;
79 meshlink_channel_accept_cb_t channel_accept_cb;
80 meshlink_node_duplicate_cb_t node_duplicate_cb;
84 pthread_mutex_t mesh_mutex;
86 listen_socket_t listen_socket[MAXSOCKETS];
92 struct splay_tree_t *edges;
93 struct splay_tree_t *nodes;
95 struct list_t *connections;
96 struct list_t *outgoings;
98 meshlink_queue_t outpacketqueue;
100 struct splay_tree_t *past_request_tree;
101 timeout_t past_request_timeout;
103 int contradicting_add_edge;
104 int contradicting_del_edge;
106 time_t last_config_check;
108 timeout_t periodictimer;
116 proxytype_t proxytype;
118 bool discovery; // Whether Catta is enabled or not
120 sockaddr_t localdiscovery_address;
122 bool default_blacklist;
124 hash_t *node_udp_cache;
125 struct connection_t *everyone;
126 struct ecdsa *private_key;
127 struct ecdsa *invitation_key;
128 int invitation_timeout;
130 int pinginterval; /* seconds between pings */
131 int pingtimeout; /* seconds to wait for response */
136 char cookie[18], hash[18];
144 pthread_t discovery_thread;
145 bool discovery_threadstarted;
146 struct CattaServer *catta_server;
147 struct CattaSServiceBrowser *catta_browser;
148 struct CattaSimplePoll *catta_poll;
149 struct CattaSEntryGroup *catta_group;
150 char *catta_servicetype;
155 /// A handle for a MeshLink node.
156 struct meshlink_node {
162 struct meshlink_channel {
166 struct utcp_connection *c;
167 meshlink_channel_receive_cb_t receive_cb;
168 meshlink_channel_poll_cb_t poll_cb;
171 /// Header for data packets routed between nodes
172 typedef struct meshlink_packethdr {
173 uint8_t destination[16];
175 } __attribute__((__packed__)) meshlink_packethdr_t;
177 extern void meshlink_send_from_queue(event_loop_t *el, meshlink_handle_t *mesh);
178 extern void update_node_status(meshlink_handle_t *mesh, struct node_t *n);
179 extern meshlink_log_level_t global_log_level;
180 extern meshlink_log_cb_t global_log_cb;
181 extern int check_port(meshlink_handle_t *mesh);
182 extern void handle_duplicate_node(meshlink_handle_t *mesh, struct node_t *n);
184 /// Device class traits
186 unsigned int min_connects;
187 unsigned int max_connects;
189 } dev_class_traits_t;
191 extern dev_class_traits_t dev_class_traits[];