#define MSG_NOSIGNAL 0
#endif
-static pthread_mutex_t global_mutex;
-
__thread meshlink_errno_t meshlink_errno;
meshlink_log_cb_t global_log_cb;
meshlink_log_level_t global_log_level;
}
char *b64key = ecdsa_get_base64_public_key(mesh->self->connection->ecdsa);
- if(!b64key)
+ if(!b64key) {
+ fclose(fh);
return false;
+ }
fprintf(fh, "ECDSAPublicKey = %s\n", b64key);
fprintf(fh, "Port = %s\n", mesh->myport);
break;
case 1:
+ mesh->thedatalen = 0;
return finalize_join(mesh);
case 2:
return true;
}
-meshlink_handle_t *meshlink_open(const char *confbase, const char *name, const char* appname, dclass_t dclass) {
- return meshlink_open_with_size(confbase, name, appname, dclass, sizeof(meshlink_handle_t));
+meshlink_handle_t *meshlink_open(const char *confbase, const char *name, const char* appname, dev_class_t devclass) {
+ return meshlink_open_with_size(confbase, name, appname, devclass, sizeof(meshlink_handle_t));
}
-meshlink_handle_t *meshlink_open_with_size(const char *confbase, const char *name, const char* appname, dclass_t dclass, size_t size) {
+meshlink_handle_t *meshlink_open_with_size(const char *confbase, const char *name, const char* appname, dev_class_t devclass, size_t size) {
// Validate arguments provided by the application
bool usingname = false;
} else { usingname = true;}
}
+ if(devclass < 0 || devclass > _DEV_CLASS_MAX) {
+ logger(NULL, MESHLINK_ERROR, "Invalid devclass given!\n");
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ }
+
meshlink_handle_t *mesh = xzalloc(size);
mesh->confbase = xstrdup(confbase);
mesh->appname = xstrdup(appname);
- mesh->dclass = dclass;
+ mesh->devclass = devclass;
if (usingname) mesh->name = xstrdup(name);
// initialize mutex
logger(mesh, MESHLINK_DEBUG, "meshlink_start called\n");
+ mesh->thedatalen = 0;
+
// TODO: open listening sockets first
//Check that a valid name is set
fclose(f);
buf[len - 1] = 0;
- pthread_mutex_lock(&(mesh->mesh_mutex));
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
return buf;
}
if(host && port) {
xasprintf(&str, "%s %s", host, port);
- append_config_file(mesh, node->name, "Address", str);
+ if ( (strncmp ("fe80",host,4) != 0) && ( strncmp("127.",host,4) != 0 ) && ( strcmp("localhost",host) !=0 ) )
+ append_config_file(mesh, node->name, "Address", str);
+ else
+ logger(mesh, MESHLINK_DEBUG, "Not adding Link Local IPv6 Address to config\n");
}
free(str);
// @TODO do we want to fire off a connection attempt right away?
}
-static void __attribute__((constructor)) meshlink_init(void) {
- crypto_init();
+/* Return an array of edges in the current network graph.
+ * Data captures the current state and will not be updated.
+ * Caller must deallocate data when done.
+ */
+meshlink_edge_t **meshlink_get_all_edges_state(meshlink_handle_t *mesh, meshlink_edge_t **edges, size_t *nmemb) {
+ if(!mesh || !nmemb || (*nmemb && !edges)) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ }
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ meshlink_edge_t **result = NULL;
+ meshlink_edge_t *copy = NULL;
+ int result_size = 0;
+
+ result_size = mesh->edges->count;
+
+ // if result is smaller than edges, we have to dealloc all the excess meshlink_edge_t
+ if(result_size > *nmemb) {
+ result = realloc(edges, result_size * sizeof (meshlink_edge_t*));
+ } else {
+ result = edges;
+ }
+
+ if(result) {
+ meshlink_edge_t **p = result;
+ int n = 0;
+ for splay_each(edge_t, e, mesh->edges) {
+ // skip edges that do not represent a two-directional connection
+ if((!e->reverse) || (e->reverse->to != e->from)) {
+ result_size--;
+ continue;
+ }
+ n++;
+ // the first *nmemb members of result can be re-used
+ if(n > *nmemb) {
+ copy = xzalloc(sizeof *copy);
+ }
+ else {
+ copy = *p;
+ }
+ copy->from = (meshlink_node_t*)e->from;
+ copy->to = (meshlink_node_t*)e->to;
+ copy->address = e->address.storage;
+ copy->options = e->options;
+ copy->weight = e->weight;
+ *p++ = copy;
+ }
+ // shrink result to the actual amount of memory used
+ for(int i = *nmemb; i > result_size; i--) {
+ free(result[i - 1]);
+ }
+ result = realloc(result, result_size * sizeof (meshlink_edge_t*));
+ *nmemb = result_size;
+ } else {
+ *nmemb = 0;
+ free(result);
+ meshlink_errno = MESHLINK_ENOMEM;
+ }
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+ return result;
}
-static void __attribute__((destructor)) meshlink_exit(void) {
- crypto_exit();
+static bool channel_pre_accept(struct utcp *utcp, uint16_t port) {
+ //TODO: implement
+ return false;
}
-int weight_from_dclass(dclass_t dclass)
-{
- switch(dclass)
- {
- case BACKBONE:
- return 1;
+static void channel_accept(struct utcp_connection *utcp_connection, uint16_t port) {
+ //TODO: implement
+}
- case STATIONARY:
- return 3;
+static int channel_recv(struct utcp_connection *connection, const void *data, size_t len) {
+ meshlink_channel_t *channel = connection->priv;
+ node_t *n = channel->node;
+ meshlink_handle_t *mesh = n->mesh;
+ if(!channel->receive_cb)
+ return -1;
+ else {
+ channel->receive_cb(mesh, channel, data, len);
+ return 0;
+ }
+}
+
+static int channel_send(struct utcp *utcp, const void *data, size_t len) {
+ node_t *n = utcp->priv;
+ meshlink_handle_t *mesh = n->mesh;
+ return meshlink_send(mesh, (meshlink_node_t *)n, data, len) ? len : -1;
+}
+
+void meshlink_set_channel_accept_cb(meshlink_handle_t *mesh, meshlink_channel_accept_cb_t cb) {
+ mesh->channel_accept_cb = cb;
+}
- case PORTABLE:
- return 6;
+void meshlink_set_channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, meshlink_channel_receive_cb_t cb) {
+ channel->receive_cb = cb;
+}
+
+meshlink_channel_t *meshlink_channel_open(meshlink_handle_t *mesh, meshlink_node_t *node, uint16_t port, meshlink_channel_receive_cb_t cb, const void *data, size_t len) {
+ node_t *n = (node_t *)node;
+ if(!n->utcp) {
+ n->utcp = utcp_init(channel_accept, channel_pre_accept, channel_send, n);
+ if(!n->utcp)
+ return NULL;
}
+ meshlink_channel_t *channel = xzalloc(sizeof *channel);
+ channel->node = n;
+ channel->receive_cb = cb;
+ channel->c = utcp_connect(n->utcp, port, channel_recv, channel);
+ if(!channel->c) {
+ free(channel);
+ return NULL;
+ }
+ return channel;
+}
+
+void meshlink_channel_shutdown(meshlink_handle_t *mesh, meshlink_channel_t *channel, int direction) {
+ utcp_shutdown(channel->c, direction);
+}
+
+void meshlink_channel_close(meshlink_handle_t *mesh, meshlink_channel_t *channel) {
+ utcp_close(channel->c);
+ free(channel);
+}
+
+ssize_t meshlink_channel_send(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
+ // TODO: locking.
+ // Ideally we want to put the data into the UTCP connection's send buffer.
+ // Then, preferrably only if there is room in the receiver window,
+ // kick the meshlink thread to go send packets.
+ return utcp_send(channel->c, data, len);
+}
- return 9;
+static void __attribute__((constructor)) meshlink_init(void) {
+ crypto_init();
}
+
+static void __attribute__((destructor)) meshlink_exit(void) {
+ crypto_exit();
+}
+
+
+/// Device class traits
+dev_class_traits_t dev_class_traits[_DEV_CLASS_MAX +1] = {
+ { .min_connects = 3, .max_connects = 10000, .edge_weight = 1 }, // DEV_CLASS_BACKBONE
+ { .min_connects = 3, .max_connects = 100, .edge_weight = 3 }, // DEV_CLASS_STATIONARY
+ { .min_connects = 3, .max_connects = 3, .edge_weight = 6 }, // DEV_CLASS_PORTABLE
+ { .min_connects = 1, .max_connects = 1, .edge_weight = 9 }, // DEV_CLASS_UNKNOWN
+};
projects / meshlink / blobdiff