break;
}
- if(found) {
+ if(found || !is_valid_hostname(host[i])) {
free(host[i]);
free(port[i]);
host[i] = NULL;
char resolved_port[NI_MAXSERV];
err = getnameinfo(ai_in->ai_addr, ai_in->ai_addrlen, resolved_host, sizeof resolved_host, resolved_port, sizeof resolved_port, NI_NUMERICSERV);
- if(err) {
+ if(err || !is_valid_hostname(resolved_host)) {
freeaddrinfo(ai_in);
continue;
}
return true;
}
-int check_port(meshlink_handle_t *mesh) {
+static int check_port(meshlink_handle_t *mesh) {
for(int i = 0; i < 1000; i++) {
- int port = 0x1000 + (rand() & 0x7fff);
+ int port = 0x1000 + prng(mesh, 0x8000);
if(try_bind(port)) {
free(mesh->myport);
return 0;
}
+static bool write_main_config_files(meshlink_handle_t *mesh) {
+ if(!mesh->confbase) {
+ return true;
+ }
+
+ uint8_t buf[4096];
+
+ /* Write the main config file */
+ packmsg_output_t out = {buf, sizeof buf};
+
+ packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
+ packmsg_add_str(&out, mesh->name);
+ packmsg_add_bin(&out, ecdsa_get_private_key(mesh->private_key), 96);
+ packmsg_add_bin(&out, ecdsa_get_private_key(mesh->invitation_key), 96);
+ packmsg_add_uint16(&out, atoi(mesh->myport));
+
+ if(!packmsg_output_ok(&out)) {
+ return false;
+ }
+
+ config_t config = {buf, packmsg_output_size(&out, buf)};
+
+ if(!main_config_write(mesh, "current", &config, mesh->config_key)) {
+ return false;
+ }
+
+ /* Write our own host config file */
+ if(!node_write_config(mesh, mesh->self)) {
+ return false;
+ }
+
+ return true;
+}
+
static bool finalize_join(meshlink_handle_t *mesh, const void *buf, uint16_t len) {
packmsg_input_t in = {buf, len};
uint32_t version = packmsg_get_uint32(&in);
char *name = packmsg_get_str_dup(&in);
packmsg_skip_element(&in); /* submesh */
- int32_t devclass = packmsg_get_int32(&in);
+ dev_class_t devclass = packmsg_get_int32(&in);
uint32_t count = packmsg_get_array(&in);
if(!name) {
if(!check_id(name)) {
logger(mesh, MESHLINK_DEBUG, "Invalid Name found in invitation: %s!\n", name);
+ free(name);
return false;
}
if(!count) {
logger(mesh, MESHLINK_ERROR, "Incomplete invitation file!\n");
+ free(name);
return false;
}
- // Initialize configuration directory
- if(!config_init(mesh)) {
- return false;
- }
-
- // Write main config file
- uint8_t outbuf[4096];
- packmsg_output_t out = {outbuf, sizeof(outbuf)};
- packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
- packmsg_add_str(&out, name);
- packmsg_add_bin(&out, ecdsa_get_private_key(mesh->private_key), 96);
- packmsg_add_uint16(&out, atoi(mesh->myport));
-
- config_t config = {outbuf, packmsg_output_size(&out, outbuf)};
+ free(mesh->name);
+ free(mesh->self->name);
+ mesh->name = name;
+ mesh->self->name = xstrdup(name);
+ mesh->self->devclass = devclass == DEV_CLASS_UNKNOWN ? mesh->devclass : devclass;
- if(!main_config_write(mesh, &config)) {
+ // Initialize configuration directory
+ if(!config_init(mesh, "current")) {
return false;
}
- // Write our own host config file
- out.ptr = outbuf;
- out.len = sizeof(outbuf);
- packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
- packmsg_add_str(&out, name);
- packmsg_add_str(&out, CORE_MESH);
- packmsg_add_int32(&out, devclass);
- packmsg_add_bool(&out, false);
- packmsg_add_bin(&out, ecdsa_get_public_key(mesh->private_key), 32);
- packmsg_add_str(&out, ""); // TODO: copy existing canonical address, in case it was added before meshlink_join().
- packmsg_add_array(&out, 0);
-
- config.len = packmsg_output_size(&out, outbuf);
-
- if(!config_write(mesh, name, &config)) {
+ if(!write_main_config_files(mesh)) {
return false;
}
packmsg_input_t in2 = {data, len};
uint32_t version = packmsg_get_uint32(&in2);
+ char *name = packmsg_get_str_dup(&in2);
- if(version != MESHLINK_CONFIG_VERSION) {
- logger(mesh, MESHLINK_ERROR, "Invalid host config file in invitation file!\n");
- return false;
+ if(!packmsg_input_ok(&in2) || version != MESHLINK_CONFIG_VERSION || !check_id(name)) {
+ free(name);
+ packmsg_input_invalidate(&in);
+ break;
}
- char *host = packmsg_get_str_dup(&in2);
-
- if(!check_id(host)) {
- logger(mesh, MESHLINK_ERROR, "Invalid node name in invitation file!\n");
- free(host);
- return false;
+ if(!check_id(name)) {
+ free(name);
+ break;
}
- if(!strcmp(host, name)) {
+ if(!strcmp(name, mesh->name)) {
logger(mesh, MESHLINK_DEBUG, "Secondary chunk would overwrite our own host config file.\n");
- free(host);
+ free(name);
+ meshlink_errno = MESHLINK_EPEER;
return false;
}
+ node_t *n = new_node();
+ n->name = name;
+
config_t config = {data, len};
- config_write(mesh, host, &config);
- node_t *n = new_node();
- n->name = host;
- node_read_full(mesh, n);
- n->devclass = mesh->devclass;
+ if(!node_read_from_config(mesh, n, &config)) {
+ free_node(n);
+ logger(mesh, MESHLINK_ERROR, "Invalid host config file in invitation file!\n");
+ meshlink_errno = MESHLINK_EPEER;
+ return false;
+ }
+
node_add(mesh, n);
+
+ if(!config_write(mesh, "current", n->name, &config, mesh->config_key)) {
+ return false;
+ }
}
- sptps_send_record(&(mesh->sptps), 1, ecdsa_get_public_key(mesh->private_key), 32);
+ /* Ensure the configuration directory metadata is on disk */
+ if(!config_sync(mesh, "current")) {
+ return false;
+ }
- free(mesh->name);
- free(mesh->self->name);
- mesh->name = xstrdup(name);
- mesh->self->name = xstrdup(name);
+ sptps_send_record(&(mesh->sptps), 1, ecdsa_get_public_key(mesh->private_key), 32);
logger(mesh, MESHLINK_DEBUG, "Configuration stored in: %s\n", mesh->confbase);
- load_all_nodes(mesh);
-
return true;
}
return true;
}
+
static bool sendline(int fd, char *format, ...) {
- static char buffer[4096];
+ char buffer[4096];
char *p = buffer;
int blen = 0;
va_list ap;
// Get our local address(es) by simulating connecting to an Internet host.
static void add_local_addresses(meshlink_handle_t *mesh) {
struct sockaddr_storage sn;
+ sn.ss_family = AF_UNKNOWN;
socklen_t sl = sizeof(sn);
// IPv4 example.org
}
}
-#if 0
-static bool meshlink_write_config(meshlink_handle_t *mesh) {
- uint8_t buf[1024];
- packmsg_output_t out = {buf, sizeof buf};
- packmsg_add_str(&out, mesh->name);
- packmsg_add_uint32(&out, mesh->devclass);
- packmsg_add_uint16(&out, mesh->port);
- packmsg_add_bin(&out, ecdsa, sizeof(ecdsa));
- uint32_t len = packmsg_output_size(&out, buf);
-
- if(!len) {
- logger(mesh, MESHLINK_DEBUG, "Could not create configuration data\n",);
- meshlink_errno = MESHLINK_EINTERNAL;
- return false;
- }
-}
-#endif
-
static bool meshlink_setup(meshlink_handle_t *mesh) {
- if(!config_init(mesh)) {
- logger(mesh, MESHLINK_ERROR, "Could not set up configuration in %s: %s\n", mesh->confbase, strerror(errno));
+ if(!config_init(mesh, "current")) {
+ logger(mesh, MESHLINK_ERROR, "Could not set up configuration in %s/current: %s\n", mesh->confbase, strerror(errno));
meshlink_errno = MESHLINK_ESTORAGE;
return false;
}
mesh->self->devclass = mesh->devclass;
mesh->self->ecdsa = ecdsa_set_public_key(ecdsa_get_public_key(mesh->private_key));
- // Write the main config file
- uint8_t buf[4096];
- packmsg_output_t out = {buf, sizeof(buf)};
-
- packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
- packmsg_add_str(&out, mesh->name);
- packmsg_add_bin(&out, ecdsa_get_private_key(mesh->private_key), 96);
- packmsg_add_bin(&out, ecdsa_get_private_key(mesh->invitation_key), 96);
- packmsg_add_uint16(&out, atoi(mesh->myport));
-
- config_t config = {buf, packmsg_output_size(&out, buf)};
-
- if(!main_config_write(mesh, &config)) {
+ if(!write_main_config_files(mesh)) {
+ logger(mesh, MESHLINK_ERROR, "Could not write main config files into %s/current: %s\n", mesh->confbase, strerror(errno));
+ meshlink_errno = MESHLINK_ESTORAGE;
return false;
}
- // Write our own host config file
- out.ptr = buf;
- out.len = sizeof(buf);
- packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
- packmsg_add_str(&out, mesh->name);
- packmsg_add_int32(&out, mesh->devclass);
- packmsg_add_bool(&out, false);
- packmsg_add_bin(&out, ecdsa_get_public_key(mesh->private_key), 32);
- packmsg_add_str(&out, ""); // TODO: copy existing canonical address, in case it was added before meshlink_join().
- packmsg_add_array(&out, 0);
-
- config.len = packmsg_output_size(&out, buf);
+ /* Ensure the configuration directory metadata is on disk */
+ if(!config_sync(mesh, "current")) {
+ return false;
+ }
- if(!config_write(mesh, mesh->name, &config)) {
+ if(!main_config_lock(mesh)) {
+ logger(NULL, MESHLINK_ERROR, "Cannot lock main config file\n");
+ meshlink_errno = MESHLINK_ESTORAGE;
return false;
}
config_t config;
- if(!main_config_read(mesh, &config)) {
+ if(!main_config_read(mesh, "current", &config, mesh->config_key)) {
logger(NULL, MESHLINK_ERROR, "Could not read main configuration file!");
return false;
}
if(!node_read_public_key(mesh, mesh->self)) {
logger(NULL, MESHLINK_ERROR, "Could not read our host configuration file!");
+ meshlink_errno = MESHLINK_ESTORAGE;
free_node(mesh->self);
mesh->self = NULL;
return false;
if(!name || !*name) {
logger(NULL, MESHLINK_ERROR, "No name given!\n");
- //return NULL;
- } else { //check name only if there is a name != NULL
- if(!check_id(name)) {
- logger(NULL, MESHLINK_ERROR, "Invalid name given!\n");
- meshlink_errno = MESHLINK_EINVAL;
- return NULL;
- }
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ };
+
+ if(!check_id(name)) {
+ logger(NULL, MESHLINK_ERROR, "Invalid name given!\n");
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
}
- if((int)devclass < 0 || devclass > _DEV_CLASS_MAX) {
+ if(devclass < 0 || devclass >= DEV_CLASS_COUNT) {
logger(NULL, MESHLINK_ERROR, "Invalid devclass given!\n");
meshlink_errno = MESHLINK_EINVAL;
return NULL;
return true;
}
+bool meshlink_encrypted_key_rotate(meshlink_handle_t *mesh, const void *new_key, size_t new_keylen) {
+ if(!mesh || !new_key || !new_keylen) {
+ logger(mesh, MESHLINK_ERROR, "Invalid arguments given!\n");
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ // Create hash for the new key
+ void *new_config_key;
+ new_config_key = xmalloc(CHACHA_POLY1305_KEYLEN);
+
+ if(!prf(new_key, new_keylen, "MeshLink configuration key", 26, new_config_key, CHACHA_POLY1305_KEYLEN)) {
+ logger(mesh, MESHLINK_ERROR, "Error creating new configuration key!\n");
+ meshlink_errno = MESHLINK_EINTERNAL;
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ // Copy contents of the "current" confbase sub-directory to "new" confbase sub-directory with the new key
+
+ if(!config_copy(mesh, "current", mesh->config_key, "new", new_config_key)) {
+ logger(mesh, MESHLINK_ERROR, "Could not set up configuration in %s/old: %s\n", mesh->confbase, strerror(errno));
+ meshlink_errno = MESHLINK_ESTORAGE;
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ devtool_keyrotate_probe(1);
+
+ main_config_unlock(mesh);
+
+ // Rename confbase/current/ to confbase/old
+
+ if(!config_rename(mesh, "current", "old")) {
+ logger(mesh, MESHLINK_ERROR, "Cannot rename %s/current to %s/old\n", mesh->confbase, mesh->confbase);
+ meshlink_errno = MESHLINK_ESTORAGE;
+ main_config_lock(mesh);
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ devtool_keyrotate_probe(2);
+
+ // Rename confbase/new/ to confbase/current
+
+ if(!config_rename(mesh, "new", "current")) {
+ logger(mesh, MESHLINK_ERROR, "Cannot rename %s/new to %s/current\n", mesh->confbase, mesh->confbase);
+ meshlink_errno = MESHLINK_ESTORAGE;
+ main_config_lock(mesh);
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ devtool_keyrotate_probe(3);
+
+ if(!main_config_lock(mesh)) {
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ // Cleanup the "old" confbase sub-directory
+
+ if(!config_destroy(mesh->confbase, "old")) {
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ // Change the mesh handle key with new key
+
+ free(mesh->config_key);
+ mesh->config_key = new_config_key;
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+ return true;
+}
+
void meshlink_open_params_free(meshlink_open_params_t *params) {
if(!params) {
meshlink_errno = MESHLINK_EINVAL;
free(params);
}
+/// Device class traits
+static const dev_class_traits_t default_class_traits[DEV_CLASS_COUNT] = {
+ { .pingtimeout = 5, .pinginterval = 60, .min_connects = 3, .max_connects = 10000, .edge_weight = 1 }, // DEV_CLASS_BACKBONE
+ { .pingtimeout = 5, .pinginterval = 60, .min_connects = 3, .max_connects = 100, .edge_weight = 3 }, // DEV_CLASS_STATIONARY
+ { .pingtimeout = 5, .pinginterval = 60, .min_connects = 3, .max_connects = 3, .edge_weight = 6 }, // DEV_CLASS_PORTABLE
+ { .pingtimeout = 5, .pinginterval = 60, .min_connects = 1, .max_connects = 1, .edge_weight = 9 }, // DEV_CLASS_UNKNOWN
+};
+
meshlink_handle_t *meshlink_open(const char *confbase, const char *name, const char *appname, dev_class_t devclass) {
+ if(!confbase || !*confbase) {
+ logger(NULL, MESHLINK_ERROR, "No confbase given!\n");
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ }
+
/* Create a temporary struct on the stack, to avoid allocating and freeing one. */
meshlink_open_params_t params;
memset(¶ms, 0, sizeof(params));
}
meshlink_handle_t *meshlink_open_encrypted(const char *confbase, const char *name, const char *appname, dev_class_t devclass, const void *key, size_t keylen) {
+ if(!confbase || !*confbase) {
+ logger(NULL, MESHLINK_ERROR, "No confbase given!\n");
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ }
+
/* Create a temporary struct on the stack, to avoid allocating and freeing one. */
- meshlink_open_params_t params = {NULL};
+ meshlink_open_params_t params;
+ memset(¶ms, 0, sizeof(params));
params.confbase = (char *)confbase;
params.name = (char *)name;
return meshlink_open_ex(¶ms);
}
+meshlink_handle_t *meshlink_open_ephemeral(const char *name, const char *appname, dev_class_t devclass) {
+ /* Create a temporary struct on the stack, to avoid allocating and freeing one. */
+ meshlink_open_params_t params;
+ memset(¶ms, 0, sizeof(params));
+
+ params.name = (char *)name;
+ params.appname = (char *)appname;
+ params.devclass = devclass;
+ params.netns = -1;
+
+ return meshlink_open_ex(¶ms);
+}
+
meshlink_handle_t *meshlink_open_ex(const meshlink_open_params_t *params) {
// Validate arguments provided by the application
bool usingname = false;
logger(NULL, MESHLINK_DEBUG, "meshlink_open called\n");
- if(!params->confbase || !*params->confbase) {
- logger(NULL, MESHLINK_ERROR, "No confbase given!\n");
- meshlink_errno = MESHLINK_EINVAL;
- return NULL;
- }
-
if(!params->appname || !*params->appname) {
logger(NULL, MESHLINK_ERROR, "No appname given!\n");
meshlink_errno = MESHLINK_EINVAL;
}
}
- if((int)params->devclass < 0 || params->devclass > _DEV_CLASS_MAX) {
+ if(params->devclass < 0 || params->devclass >= DEV_CLASS_COUNT) {
logger(NULL, MESHLINK_ERROR, "Invalid devclass given!\n");
meshlink_errno = MESHLINK_EINVAL;
return NULL;
}
meshlink_handle_t *mesh = xzalloc(sizeof(meshlink_handle_t));
- mesh->confbase = xstrdup(params->confbase);
+
+ if(params->confbase) {
+ mesh->confbase = xstrdup(params->confbase);
+ }
+
mesh->appname = xstrdup(params->appname);
mesh->devclass = params->devclass;
mesh->discovery = true;
mesh->invitation_timeout = 604800; // 1 week
mesh->netns = params->netns;
mesh->submeshes = NULL;
+ mesh->log_cb = global_log_cb;
+ mesh->log_level = global_log_level;
+
+ randomize(&mesh->prng_state, sizeof(mesh->prng_state));
+
+ memcpy(mesh->dev_class_traits, default_class_traits, sizeof(default_class_traits));
if(usingname) {
mesh->name = xstrdup(params->name);
if(!prf(params->key, params->keylen, "MeshLink configuration key", 26, mesh->config_key, CHACHA_POLY1305_KEYLEN)) {
logger(NULL, MESHLINK_ERROR, "Error creating configuration key!\n");
+ meshlink_close(mesh);
meshlink_errno = MESHLINK_EINTERNAL;
return NULL;
}
// If no configuration exists yet, create it.
- if(!main_config_exists(mesh)) {
+ if(!meshlink_confbase_exists(mesh)) {
if(!meshlink_setup(mesh)) {
logger(NULL, MESHLINK_ERROR, "Cannot create initial configuration\n");
meshlink_close(mesh);
#ifdef HAVE_SETNS
if(setns(mesh->netns, CLONE_NEWNET) != 0) {
+ pthread_cond_signal(&mesh->cond);
return NULL;
}
#else
+ pthread_cond_signal(&mesh->cond);
return NULL;
#endif // HAVE_SETNS
}
+#if HAVE_CATTA
+
+ if(mesh->discovery) {
+ discovery_start(mesh);
+ }
+
+#endif
+
pthread_mutex_lock(&(mesh->mesh_mutex));
logger(mesh, MESHLINK_DEBUG, "Starting main_loop...\n");
+ pthread_cond_broadcast(&mesh->cond);
main_loop(mesh);
logger(mesh, MESHLINK_DEBUG, "main_loop returned.\n");
pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+#if HAVE_CATTA
+
+ // Stop discovery
+ if(mesh->discovery) {
+ discovery_stop(mesh);
+ }
+
+#endif
+
return NULL;
}
pthread_mutex_lock(&(mesh->mesh_mutex));
+ assert(mesh->self->ecdsa);
+ assert(!memcmp((uint8_t *)mesh->self->ecdsa + 64, (uint8_t *)mesh->private_key + 64, 32));
+
if(mesh->threadstarted) {
logger(mesh, MESHLINK_DEBUG, "thread was already running\n");
pthread_mutex_unlock(&(mesh->mesh_mutex));
return false;
}
+ pthread_cond_wait(&mesh->cond, &mesh->mesh_mutex);
mesh->threadstarted = true;
-#if HAVE_CATTA
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return true;
+}
- if(mesh->discovery) {
- discovery_start(mesh);
- }
-
-#endif
-
- assert(mesh->self->ecdsa);
- assert(!memcmp((uint8_t *)mesh->self->ecdsa + 64, (uint8_t *)mesh->private_key + 64, 32));
-
-
- pthread_mutex_unlock(&(mesh->mesh_mutex));
- return true;
-}
-
-void meshlink_stop(meshlink_handle_t *mesh) {
- if(!mesh) {
- meshlink_errno = MESHLINK_EINVAL;
- return;
+void meshlink_stop(meshlink_handle_t *mesh) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
}
pthread_mutex_lock(&(mesh->mesh_mutex));
logger(mesh, MESHLINK_DEBUG, "meshlink_stop called\n");
-#if HAVE_CATTA
-
- // Stop discovery
- if(mesh->discovery) {
- discovery_stop(mesh);
- }
-
-#endif
-
// Shut down the main thread
event_loop_stop(&mesh->loop);
exit_outgoings(mesh);
+ // Write out any changed node config files
+ if(mesh->nodes) {
+ for splay_each(node_t, n, mesh->nodes) {
+ if(n->status.dirty) {
+ node_write_config(mesh, n);
+ n->status.dirty = false;
+ }
+ }
+ }
+
pthread_mutex_unlock(&(mesh->mesh_mutex));
}
void meshlink_close(meshlink_handle_t *mesh) {
- if(!mesh || !mesh->confbase) {
+ if(!mesh) {
meshlink_errno = MESHLINK_EINVAL;
return;
}
close(mesh->netns);
}
+ for(vpn_packet_t *packet; (packet = meshlink_queue_pop(&mesh->outpacketqueue));) {
+ free(packet);
+ }
+
+ meshlink_queue_exit(&mesh->outpacketqueue);
+
free(mesh->name);
free(mesh->appname);
free(mesh->confbase);
- pthread_mutex_destroy(&(mesh->mesh_mutex));
+ free(mesh->config_key);
+ ecdsa_free(mesh->private_key);
main_config_unlock(mesh);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+ pthread_mutex_destroy(&mesh->mesh_mutex);
+
memset(mesh, 0, sizeof(*mesh));
free(mesh);
return false;
}
- return config_destroy(confbase);
+ if(!config_destroy(confbase, "current")) {
+ logger(NULL, MESHLINK_ERROR, "Cannot remove confbase sub-directories %s: %s\n", confbase, strerror(errno));
+ return false;
+ }
+
+ config_destroy(confbase, "new");
+ config_destroy(confbase, "old");
+
+ if(rmdir(confbase) && errno != ENOENT) {
+ logger(NULL, MESHLINK_ERROR, "Cannot remove directory %s: %s\n", confbase, strerror(errno));
+ meshlink_errno = MESHLINK_ESTORAGE;
+ return false;
+ }
+
+ return true;
}
void meshlink_set_receive_cb(meshlink_handle_t *mesh, meshlink_receive_cb_t cb) {
pthread_mutex_unlock(&(mesh->mesh_mutex));
}
+void meshlink_set_node_pmtu_cb(meshlink_handle_t *mesh, meshlink_node_pmtu_cb_t cb) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+ mesh->node_pmtu_cb = cb;
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+}
+
void meshlink_set_node_duplicate_cb(meshlink_handle_t *mesh, meshlink_node_duplicate_cb_t cb) {
if(!mesh) {
meshlink_errno = MESHLINK_EINVAL;
}
}
+void meshlink_set_error_cb(struct meshlink_handle *mesh, meshlink_error_cb_t cb) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+ mesh->error_cb = cb;
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+}
+
bool meshlink_send(meshlink_handle_t *mesh, meshlink_node_t *destination, const void *data, size_t len) {
meshlink_packethdr_t *hdr;
return true;
}
-void meshlink_send_from_queue(event_loop_t *loop, meshlink_handle_t *mesh) {
+void meshlink_send_from_queue(event_loop_t *loop, void *data) {
(void)loop;
+ meshlink_handle_t *mesh = data;
vpn_packet_t *packet = meshlink_queue_pop(&mesh->outpacketqueue);
if(!packet) {
mesh->self->in_packets++;
mesh->self->in_bytes += packet->len;
route(mesh, mesh->self, packet);
+
+ free(packet);
}
ssize_t meshlink_get_pmtu(meshlink_handle_t *mesh, meshlink_node_t *destination) {
pthread_mutex_lock(&(mesh->mesh_mutex));
node = (meshlink_node_t *)lookup_node(mesh, (char *)name); // TODO: make lookup_node() use const
pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+ if(!node) {
+ meshlink_errno = MESHLINK_ENOENT;
+ }
+
return node;
}
pthread_mutex_lock(&(mesh->mesh_mutex));
submesh = (meshlink_submesh_t *)lookup_submesh(mesh, name);
pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+ if(!submesh) {
+ meshlink_errno = MESHLINK_ENOENT;
+ }
+
return submesh;
}
static bool search_node_by_dev_class(const node_t *node, const void *condition) {
dev_class_t *devclass = (dev_class_t *)condition;
- if(*devclass == node->devclass) {
+ if(*devclass == (dev_class_t)node->devclass) {
return true;
}
}
meshlink_node_t **meshlink_get_all_nodes_by_dev_class(meshlink_handle_t *mesh, dev_class_t devclass, meshlink_node_t **nodes, size_t *nmemb) {
- if(!mesh || ((int)devclass < 0) || (devclass > _DEV_CLASS_MAX) || !nmemb) {
+ if(!mesh || devclass < 0 || devclass >= DEV_CLASS_COUNT || !nmemb) {
meshlink_errno = MESHLINK_EINVAL;
return NULL;
}
node_t *n = (node_t *)node;
free(n->canonical_address);
n->canonical_address = canonical_address;
- n->status.dirty = true;
+ node_write_config(mesh, n);
pthread_mutex_unlock(&(mesh->mesh_mutex));
return -1;
}
- return atoi(mesh->myport);
+ int port;
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+ port = atoi(mesh->myport);
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+ return port;
}
bool meshlink_set_port(meshlink_handle_t *mesh, int port) {
goto done;
}
+ free(mesh->myport);
+ xasprintf(&mesh->myport, "%d", port);
+
+ /* Close down the network. This also deletes mesh->self. */
close_network_connections(mesh);
- // TODO: write meshlink.conf again
+ /* Recreate mesh->self. */
+ mesh->self = new_node();
+ mesh->self->name = xstrdup(mesh->name);
+ mesh->self->devclass = mesh->devclass;
+ xasprintf(&mesh->myport, "%d", port);
- if(!setup_network(mesh)) {
+ if(!node_read_public_key(mesh, mesh->self)) {
+ logger(NULL, MESHLINK_ERROR, "Could not read our host configuration file!");
+ meshlink_errno = MESHLINK_ESTORAGE;
+ free_node(mesh->self);
+ mesh->self = NULL;
+ goto done;
+ } else if(!setup_network(mesh)) {
meshlink_errno = MESHLINK_ENETWORK;
- } else {
- rval = true;
+ goto done;
}
+ /* Rebuild our own list of recent addresses */
+ memset(mesh->self->recent, 0, sizeof(mesh->self->recent));
+ add_local_addresses(mesh);
+
+ /* Write meshlink.conf with the updated port number */
+ write_main_config_files(mesh);
+
+ rval = config_sync(mesh, "current");
+
done:
pthread_mutex_unlock(&(mesh->mesh_mutex));
}
// Ensure no host configuration file with that name exists
- if(config_exists(mesh, name)) {
+ if(config_exists(mesh, "current", name)) {
logger(mesh, MESHLINK_DEBUG, "A host config file for %s already exists!\n", name);
meshlink_errno = MESHLINK_EEXIST;
pthread_mutex_unlock(&(mesh->mesh_mutex));
packmsg_add_str(&inv, s ? s->name : CORE_MESH);
packmsg_add_int32(&inv, DEV_CLASS_UNKNOWN); /* TODO: allow this to be set by inviter? */
- /* TODO: Add several host config files to bootstrap connections */
- config_t configs[5] = {NULL};
+ /* TODO: Add several host config files to bootstrap connections.
+ * Note: make sure we only add config files of nodes that are in the core mesh or the same submesh,
+ * and are not blacklisted.
+ */
+ config_t configs[5];
+ memset(configs, 0, sizeof(configs));
int count = 0;
- if(config_read(mesh, mesh->self->name, &configs[count])) {
+ if(config_read(mesh, "current", mesh->self->name, &configs[count], mesh->config_key)) {
count++;
}
config_t config = {outbuf, packmsg_output_size(&inv, outbuf)};
- if(!invitation_write(mesh, cookiehash, &config)) {
+ if(!invitation_write(mesh, "current", cookiehash, &config, mesh->config_key)) {
logger(mesh, MESHLINK_DEBUG, "Could not create invitation file %s: %s\n", cookiehash, strerror(errno));
meshlink_errno = MESHLINK_ESTORAGE;
pthread_mutex_unlock(&(mesh->mesh_mutex));
//Before doing meshlink_join make sure we are not connected to another mesh
if(mesh->threadstarted) {
- logger(mesh, MESHLINK_DEBUG, "Already connected to a mesh\n");
+ logger(mesh, MESHLINK_ERROR, "Cannot join while started\n");
+ meshlink_errno = MESHLINK_EINVAL;
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return false;
+ }
+
+ // Refuse to join a mesh if we are already part of one. We are part of one if we know at least one other node.
+ if(mesh->nodes->count > 1) {
+ logger(mesh, MESHLINK_ERROR, "Already part of an existing mesh\n");
meshlink_errno = MESHLINK_EINVAL;
pthread_mutex_unlock(&(mesh->mesh_mutex));
return false;
mesh->blen = 0;
- if(!sendline(mesh->sock, "0 ?%s %d.%d %s", b64key, PROT_MAJOR, 1, mesh->appname)) {
+ if(!sendline(mesh->sock, "0 ?%s %d.%d %s", b64key, PROT_MAJOR, PROT_MINOR, mesh->appname)) {
logger(mesh, MESHLINK_DEBUG, "Error sending request to %s port %s: %s\n", address, port, strerror(errno));
closesocket(mesh->sock);
meshlink_errno = MESHLINK_ENETWORK;
return NULL;
}
- config_t config;
+ // Create a config file on the fly.
- // Get our config file
+ uint8_t buf[4096];
+ packmsg_output_t out = {buf, sizeof(buf)};
+ packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
+ packmsg_add_str(&out, mesh->name);
+ packmsg_add_str(&out, CORE_MESH);
pthread_mutex_lock(&(mesh->mesh_mutex));
- if(!config_read(mesh, mesh->self->name, &config)) {
- meshlink_errno = MESHLINK_ESTORAGE;
- pthread_mutex_unlock(&mesh->mesh_mutex);
- return NULL;
+ packmsg_add_int32(&out, mesh->self->devclass);
+ packmsg_add_bool(&out, mesh->self->status.blacklisted);
+ packmsg_add_bin(&out, ecdsa_get_public_key(mesh->private_key), 32);
+ packmsg_add_str(&out, mesh->self->canonical_address ? mesh->self->canonical_address : "");
+
+ uint32_t count = 0;
+
+ for(uint32_t i = 0; i < 5; i++) {
+ if(mesh->self->recent[i].sa.sa_family) {
+ count++;
+ } else {
+ break;
+ }
+ }
+
+ packmsg_add_array(&out, count);
+
+ for(uint32_t i = 0; i < count; i++) {
+ packmsg_add_sockaddr(&out, &mesh->self->recent[i]);
}
pthread_mutex_unlock(&(mesh->mesh_mutex));
+ if(!packmsg_output_ok(&out)) {
+ logger(mesh, MESHLINK_DEBUG, "Error creating export data\n");
+ meshlink_errno = MESHLINK_EINTERNAL;
+ return NULL;
+ }
+
// Prepare a base64-encoded packmsg array containing our config file
- uint8_t *buf = xmalloc(((config.len + 4) * 4) / 3 + 4);
- packmsg_output_t out = {buf, config.len + 4};
- packmsg_add_array(&out, 1);
- packmsg_add_bin(&out, config.buf, config.len);
- config_free(&config);
+ uint32_t len = packmsg_output_size(&out, buf);
+ uint32_t len2 = ((len + 4) * 4) / 3 + 4;
+ uint8_t *buf2 = xmalloc(len2);
+ packmsg_output_t out2 = {buf2, len2};
+ packmsg_add_array(&out2, 1);
+ packmsg_add_bin(&out2, buf, packmsg_output_size(&out, buf));
- if(!packmsg_output_ok(&out)) {
+ if(!packmsg_output_ok(&out2)) {
logger(mesh, MESHLINK_DEBUG, "Error creating export data\n");
meshlink_errno = MESHLINK_EINTERNAL;
- free(buf);
+ free(buf2);
return NULL;
}
- b64encode_urlsafe(buf, (char *)buf, packmsg_output_size(&out, buf));
+ b64encode_urlsafe(buf2, (char *)buf2, packmsg_output_size(&out2, buf2));
- return (char *)buf;
+ return (char *)buf2;
}
bool meshlink_import(meshlink_handle_t *mesh, const char *data) {
if(!packmsg_input_ok(&in2) || version != MESHLINK_CONFIG_VERSION || !check_id(name)) {
free(name);
- packmsg_input_invalidate(&in2);
+ packmsg_input_invalidate(&in);
break;
}
node_t *n = lookup_node(mesh, name);
if(n) {
- free(name);
logger(mesh, MESHLINK_DEBUG, "Node %s already exists, not importing\n", name);
+ free(name);
continue;
}
n = new_node();
n->name = name;
- char *submesh_name = packmsg_get_str_dup(&in2);
- if(submesh_name) {
- if(!strcmp(submesh_name, CORE_MESH)) {
- n->submesh = NULL;
- } else {
- n->submesh = lookup_or_create_submesh(mesh, submesh_name);
-
- if(!n->submesh) {
- packmsg_input_invalidate(&in2);
- }
- }
-
- free(submesh_name);
- }
-
- n->devclass = packmsg_get_int32(&in2);
- n->status.blacklisted = packmsg_get_bool(&in2);
- const void *key;
- uint32_t keylen = packmsg_get_bin_raw(&in2, &key);
-
- if(keylen == 32) {
- n->ecdsa = ecdsa_set_public_key(key);
- }
-
- n->canonical_address = packmsg_get_str_dup(&in2);
- uint32_t count = packmsg_get_array(&in2);
-
- if(count > 5) {
- count = 5;
- }
-
- for(uint32_t i = 0; i < count; i++) {
- n->recent[i] = packmsg_get_sockaddr(&in2);
- }
+ config_t config = {data, len};
- if(!packmsg_done(&in2) || keylen != 32) {
- packmsg_input_invalidate(&in2);
+ if(!node_read_from_config(mesh, n, &config)) {
free_node(n);
- } else {
- config_t config = {data, len};
- config_write(mesh, n->name, &config);
- node_add(mesh, n);
+ packmsg_input_invalidate(&in);
+ break;
}
+
+ config_write(mesh, "current", n->name, &config, mesh->config_key);
+ node_add(mesh, n);
}
pthread_mutex_unlock(&(mesh->mesh_mutex));
+ free(buf);
+
if(!packmsg_done(&in)) {
logger(mesh, MESHLINK_ERROR, "Invalid data\n");
meshlink_errno = MESHLINK_EPEER;
return false;
}
+ if(!config_sync(mesh, "current")) {
+ return false;
+ }
+
return true;
}
}
n->status.blacklisted = true;
- n->status.dirty = true;
+ node_write_config(mesh, n);
+ config_sync(mesh, "current");
+
logger(mesh, MESHLINK_DEBUG, "Blacklisted %s.\n", node->name);
//Immediately terminate any connections we have with the blacklisted node
}
n->status.blacklisted = false;
- n->status.dirty = true;
+ node_write_config(mesh, n);
+ config_sync(mesh, "current");
+
+ if(n->status.reachable) {
+ update_node_status(mesh, n);
+ }
pthread_mutex_unlock(&(mesh->mesh_mutex));
return;
node_t *n = (node_t *)node;
memmove(n->recent + 1, n->recent, 4 * sizeof(*n->recent));
memcpy(n->recent, addr, SALEN(*addr));
- n->status.dirty = true;
+ node_write_config(mesh, n);
pthread_mutex_unlock(&(mesh->mesh_mutex));
// @TODO do we want to fire off a connection attempt right away?
return mesh->channel_accept_cb;
}
+static void aio_signal(meshlink_handle_t *mesh, meshlink_channel_t *channel, meshlink_aio_buffer_t *aio) {
+ if(aio->data) {
+ if(aio->cb.buffer) {
+ aio->cb.buffer(mesh, channel, aio->data, aio->len, aio->priv);
+ }
+ } else {
+ if(aio->cb.fd) {
+ aio->cb.fd(mesh, channel, aio->fd, aio->done, aio->priv);
+ }
+ }
+}
+
static ssize_t channel_recv(struct utcp_connection *connection, const void *data, size_t len) {
meshlink_channel_t *channel = connection->priv;
if(n->status.destroyed) {
meshlink_channel_close(mesh, channel);
- } else if(channel->receive_cb) {
- channel->receive_cb(mesh, channel, data, len);
+ return len;
+ }
+
+ const char *p = data;
+ size_t left = len;
+
+ while(channel->aio_receive) {
+ meshlink_aio_buffer_t *aio = channel->aio_receive;
+ size_t todo = aio->len - aio->done;
+
+ if(todo > left) {
+ todo = left;
+ }
+
+ if(aio->data) {
+ memcpy((char *)aio->data + aio->done, p, todo);
+ } else {
+ ssize_t result = write(aio->fd, p, todo);
+
+ if(result > 0) {
+ todo = result;
+ }
+ }
+
+ aio->done += todo;
+
+ if(aio->done == aio->len) {
+ channel->aio_receive = aio->next;
+ aio_signal(mesh, channel, aio);
+ free(aio);
+ }
+
+ p += todo;
+ left -= todo;
+
+ if(!left && len) {
+ return len;
+ }
+ }
+
+ if(channel->receive_cb) {
+ channel->receive_cb(mesh, channel, p, left);
}
return len;
node_t *n = channel->node;
meshlink_handle_t *mesh = n->mesh;
+ meshlink_aio_buffer_t *aio = channel->aio_send;
+
+ if(aio) {
+ /* We at least one AIO buffer. Send as much as possible form the first buffer. */
+ size_t left = aio->len - aio->done;
+ ssize_t sent;
+
+ if(len > left) {
+ len = left;
+ }
+
+ if(aio->data) {
+ sent = utcp_send(connection, (char *)aio->data + aio->done, len);
+ } else {
+ char buf[65536];
+ size_t todo = utcp_get_sndbuf_free(connection);
+
+ if(todo > left) {
+ todo = left;
+ }
+
+ if(todo > sizeof(buf)) {
+ todo = sizeof(buf);
+ }
+
+ ssize_t result = read(aio->fd, buf, todo);
+
+ if(result > 0) {
+ sent = utcp_send(connection, buf, result);
+ } else {
+ sent = result;
+ }
+ }
- if(channel->poll_cb) {
- channel->poll_cb(mesh, channel, len);
+ if(sent >= 0) {
+ aio->done += sent;
+ }
+
+ /* If the buffer is now completely sent, call the callback and dispose of it. */
+ if(aio->done >= aio->len) {
+ channel->aio_send = aio->next;
+ aio_signal(mesh, channel, aio);
+ free(aio);
+ }
+ } else {
+ if(channel->poll_cb) {
+ channel->poll_cb(mesh, channel, len);
+ } else {
+ utcp_set_poll_cb(connection, NULL);
+ }
}
}
void meshlink_set_channel_poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, meshlink_channel_poll_cb_t cb) {
- (void)mesh;
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
channel->poll_cb = cb;
- utcp_set_poll_cb(channel->c, cb ? channel_poll : NULL);
+ utcp_set_poll_cb(channel->c, (cb || channel->aio_send) ? channel_poll : NULL);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
}
void meshlink_set_channel_accept_cb(meshlink_handle_t *mesh, meshlink_channel_accept_cb_t cb) {
pthread_mutex_unlock(&mesh->mesh_mutex);
}
+void meshlink_set_channel_sndbuf(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t size) {
+ (void)mesh;
+
+ if(!channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+ utcp_set_sndbuf(channel->c, size);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+}
+
+void meshlink_set_channel_rcvbuf(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t size) {
+ (void)mesh;
+
+ if(!channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+ utcp_set_rcvbuf(channel->c, size);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+}
+
meshlink_channel_t *meshlink_channel_open_ex(meshlink_handle_t *mesh, meshlink_node_t *node, uint16_t port, meshlink_channel_receive_cb_t cb, const void *data, size_t len, uint32_t flags) {
if(data || len) {
abort(); // TODO: handle non-NULL data
return NULL;
}
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
node_t *n = (node_t *)node;
if(!n->utcp) {
if(!n->utcp) {
meshlink_errno = errno == ENOMEM ? MESHLINK_ENOMEM : MESHLINK_EINTERNAL;
+ pthread_mutex_unlock(&mesh->mesh_mutex);
return NULL;
}
}
if(n->status.blacklisted) {
logger(mesh, MESHLINK_ERROR, "Cannot open a channel with blacklisted node\n");
+ pthread_mutex_unlock(&mesh->mesh_mutex);
return NULL;
}
channel->receive_cb = cb;
channel->c = utcp_connect_ex(n->utcp, port, channel_recv, channel, flags);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
if(!channel->c) {
meshlink_errno = errno == ENOMEM ? MESHLINK_ENOMEM : MESHLINK_EINTERNAL;
free(channel);
return;
}
+ pthread_mutex_lock(&mesh->mesh_mutex);
utcp_shutdown(channel->c, direction);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
}
void meshlink_channel_close(meshlink_handle_t *mesh, meshlink_channel_t *channel) {
return;
}
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
utcp_close(channel->c);
+
+ /* Clean up any outstanding AIO buffers. */
+ for(meshlink_aio_buffer_t *aio = channel->aio_send, *next; aio; aio = next) {
+ next = aio->next;
+ aio_signal(mesh, channel, aio);
+ free(aio);
+ }
+
+ for(meshlink_aio_buffer_t *aio = channel->aio_receive, *next; aio; aio = next) {
+ next = aio->next;
+ aio_signal(mesh, channel, aio);
+ free(aio);
+ }
+
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
free(channel);
}
// Then, preferably only if there is room in the receiver window,
// kick the meshlink thread to go send packets.
+ ssize_t retval;
+
pthread_mutex_lock(&mesh->mesh_mutex);
- ssize_t retval = utcp_send(channel->c, data, len);
+
+ /* Disallow direct calls to utcp_send() while we still have AIO active. */
+ if(channel->aio_send) {
+ retval = 0;
+ } else {
+ retval = utcp_send(channel->c, data, len);
+ }
+
pthread_mutex_unlock(&mesh->mesh_mutex);
if(retval < 0) {
return retval;
}
+bool meshlink_channel_aio_send(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len, meshlink_aio_cb_t cb, void *priv) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ if(!len || !data) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ meshlink_aio_buffer_t *aio = xzalloc(sizeof(*aio));
+ aio->data = data;
+ aio->len = len;
+ aio->cb.buffer = cb;
+ aio->priv = priv;
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
+ /* Append the AIO buffer descriptor to the end of the chain */
+ meshlink_aio_buffer_t **p = &channel->aio_send;
+
+ while(*p) {
+ p = &(*p)->next;
+ }
+
+ *p = aio;
+
+ /* Ensure the poll callback is set, and call it right now to push data if possible */
+ utcp_set_poll_cb(channel->c, channel_poll);
+ channel_poll(channel->c, len);
+
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
+ return true;
+}
+
+bool meshlink_channel_aio_fd_send(meshlink_handle_t *mesh, meshlink_channel_t *channel, int fd, size_t len, meshlink_aio_fd_cb_t cb, void *priv) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ if(!len || fd == -1) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ meshlink_aio_buffer_t *aio = xzalloc(sizeof(*aio));
+ aio->fd = fd;
+ aio->len = len;
+ aio->cb.fd = cb;
+ aio->priv = priv;
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
+ /* Append the AIO buffer descriptor to the end of the chain */
+ meshlink_aio_buffer_t **p = &channel->aio_send;
+
+ while(*p) {
+ p = &(*p)->next;
+ }
+
+ *p = aio;
+
+ /* Ensure the poll callback is set, and call it right now to push data if possible */
+ utcp_set_poll_cb(channel->c, channel_poll);
+ channel_poll(channel->c, len);
+
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
+ return true;
+}
+
+bool meshlink_channel_aio_receive(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len, meshlink_aio_cb_t cb, void *priv) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ if(!len || !data) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ meshlink_aio_buffer_t *aio = xzalloc(sizeof(*aio));
+ aio->data = data;
+ aio->len = len;
+ aio->cb.buffer = cb;
+ aio->priv = priv;
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
+ /* Append the AIO buffer descriptor to the end of the chain */
+ meshlink_aio_buffer_t **p = &channel->aio_receive;
+
+ while(*p) {
+ p = &(*p)->next;
+ }
+
+ *p = aio;
+
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
+ return true;
+}
+
+bool meshlink_channel_aio_fd_receive(meshlink_handle_t *mesh, meshlink_channel_t *channel, int fd, size_t len, meshlink_aio_fd_cb_t cb, void *priv) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ if(!len || fd == -1) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ meshlink_aio_buffer_t *aio = xzalloc(sizeof(*aio));
+ aio->fd = fd;
+ aio->len = len;
+ aio->cb.fd = cb;
+ aio->priv = priv;
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
+ /* Append the AIO buffer descriptor to the end of the chain */
+ meshlink_aio_buffer_t **p = &channel->aio_receive;
+
+ while(*p) {
+ p = &(*p)->next;
+ }
+
+ *p = aio;
+
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
+ return true;
+}
+
uint32_t meshlink_channel_get_flags(meshlink_handle_t *mesh, meshlink_channel_t *channel) {
if(!mesh || !channel) {
meshlink_errno = MESHLINK_EINVAL;
if(mesh->node_status_cb) {
mesh->node_status_cb(mesh, (meshlink_node_t *)n, n->status.reachable && !n->status.blacklisted);
}
+
+ if(mesh->node_pmtu_cb) {
+ mesh->node_pmtu_cb(mesh, (meshlink_node_t *)n, n->minmtu);
+ }
+}
+
+void update_node_pmtu(meshlink_handle_t *mesh, node_t *n) {
+ if(mesh->node_pmtu_cb && !n->status.blacklisted) {
+ mesh->node_pmtu_cb(mesh, (meshlink_node_t *)n, n->minmtu);
+ }
}
void handle_duplicate_node(meshlink_handle_t *mesh, node_t *n) {
#endif
}
+void meshlink_set_dev_class_timeouts(meshlink_handle_t *mesh, dev_class_t devclass, int pinginterval, int pingtimeout) {
+ if(!mesh || devclass < 0 || devclass >= DEV_CLASS_COUNT) {
+ meshlink_errno = EINVAL;
+ return;
+ }
+
+ if(pinginterval < 1 || pingtimeout < 1 || pingtimeout > pinginterval) {
+ meshlink_errno = EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+ mesh->dev_class_traits[devclass].pinginterval = pinginterval;
+ mesh->dev_class_traits[devclass].pingtimeout = pingtimeout;
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+}
+
+void handle_network_change(meshlink_handle_t *mesh, bool online) {
+ (void)online;
+
+ if(!mesh->connections || !mesh->loop.running) {
+ return;
+ }
+
+ retry(mesh);
+}
+
+void call_error_cb(meshlink_handle_t *mesh, meshlink_errno_t meshlink_errno) {
+ // We should only call the callback function if we are in the background thread.
+ if(!mesh->error_cb) {
+ return;
+ }
+
+ if(!mesh->threadstarted) {
+ return;
+ }
+
+ if(mesh->thread == pthread_self()) {
+ mesh->error_cb(mesh, meshlink_errno);
+ }
+}
+
+
static void __attribute__((constructor)) meshlink_init(void) {
crypto_init();
- unsigned int seed;
- randomize(&seed, sizeof(seed));
- srand(seed);
}
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