1 #ifndef MESHLINK_INTERNAL_H
2 #define MESHLINK_INTERNAL_H
5 meshlink_internal.h -- Internal parts of the public API.
6 Copyright (C) 2014-2019 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.
24 #error You must not include both meshlink.h and meshlink_internal.h!
32 #include "meshlink_queue.h"
38 #define MAXSOCKETS 8 /* Probably overkill... */
40 static const char meshlink_invitation_label[] = "MeshLink invitation";
41 static const char meshlink_tcp_label[] = "MeshLink TCP";
42 static const char meshlink_udp_label[] = "MeshLink UDP";
45 struct CattaSServiceBrowser;
46 struct CattaSimplePoll;
47 struct CattaSEntryGroup;
49 typedef struct listen_socket_t {
56 typedef enum proxytype_t {
64 struct meshlink_open_params {
73 /// A handle for an instance of MeshLink.
74 struct meshlink_handle {
84 meshlink_receive_cb_t receive_cb;
85 meshlink_node_status_cb_t node_status_cb;
86 meshlink_log_cb_t log_cb;
87 meshlink_log_level_t log_level;
89 meshlink_channel_accept_cb_t channel_accept_cb;
90 meshlink_node_duplicate_cb_t node_duplicate_cb;
94 pthread_mutex_t mesh_mutex;
96 listen_socket_t listen_socket[MAXSOCKETS];
102 struct splay_tree_t *config;
103 struct splay_tree_t *edges;
104 struct splay_tree_t *nodes;
106 struct list_t *connections;
107 struct list_t *outgoings;
108 struct list_t *submeshes;
110 meshlink_queue_t outpacketqueue;
112 struct splay_tree_t *past_request_tree;
113 timeout_t past_request_timeout;
115 int contradicting_add_edge;
116 int contradicting_del_edge;
118 time_t last_config_check;
120 timeout_t periodictimer;
128 proxytype_t proxytype;
130 bool discovery; // Whether Catta is enabled or not
132 sockaddr_t localdiscovery_address;
134 bool default_blacklist;
136 hash_t *node_udp_cache;
137 struct connection_t *everyone;
138 struct ecdsa *invitation_key;
139 int invitation_timeout;
141 int pinginterval; /* seconds between pings */
142 int pingtimeout; /* seconds to wait for response */
147 char cookie[18], hash[18];
155 pthread_t discovery_thread;
156 bool discovery_threadstarted;
157 struct CattaServer *catta_server;
158 struct CattaSServiceBrowser *catta_browser;
159 struct CattaSimplePoll *catta_poll;
160 struct CattaSEntryGroup *catta_group;
161 char *catta_servicetype;
166 /// A handle for a MeshLink node.
167 struct meshlink_node {
172 /// A handle for a node Sub-Mesh.
173 struct meshlink_submesh {
179 struct meshlink_channel {
183 struct utcp_connection *c;
184 meshlink_channel_receive_cb_t receive_cb;
185 meshlink_channel_poll_cb_t poll_cb;
188 /// Header for data packets routed between nodes
189 typedef struct meshlink_packethdr {
190 uint8_t destination[16];
192 } __attribute__((__packed__)) meshlink_packethdr_t;
194 extern void meshlink_send_from_queue(event_loop_t *el, meshlink_handle_t *mesh);
195 extern void update_node_status(meshlink_handle_t *mesh, struct node_t *n);
196 extern meshlink_log_level_t global_log_level;
197 extern meshlink_log_cb_t global_log_cb;
198 extern int check_port(meshlink_handle_t *mesh);
199 extern void handle_duplicate_node(meshlink_handle_t *mesh, struct node_t *n);
201 /// Device class traits
203 unsigned int min_connects;
204 unsigned int max_connects;
206 } dev_class_traits_t;
208 extern dev_class_traits_t dev_class_traits[];