/*
meshlink.c -- Implementation of the MeshLink API.
- Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
+ Copyright (C) 2014, 2017 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
#include "node.h"
#include "protocol.h"
#include "route.h"
+#include "sockaddr.h"
#include "utils.h"
#include "xalloc.h"
#include "ed25519/sha512.h"
char buf[1024];
size_t len;
- while((len = fread(buf, 1, sizeof buf, in)))
+ while((len = fread(buf, 1, sizeof(buf), in)))
fwrite(buf, len, 1, out);
fclose(in);
return true;
if(!f)
return;
- while(fgets(line, sizeof line, f)) {
+ while(fgets(line, sizeof(line), f)) {
if(!rstrip(line))
continue;
char *p = line, *q;
p += strspn(p, "\t ");
p[strcspn(p, "\t ")] = 0;
- if(!*port && !strcasecmp(line, "Port")) {
+ if(!*port && !strcasecmp(line, "Port"))
*port = xstrdup(q);
- } else if(!*hostname && !strcasecmp(line, "Address")) {
+ else if(!*hostname && !strcasecmp(line, "Address")) {
*hostname = xstrdup(q);
if(*p) {
free(*port);
fclose(f);
}
-static char *get_my_hostname(meshlink_handle_t* mesh) {
- char *hostname = NULL;
- char *port = NULL;
- char *hostport = NULL;
- char *name = mesh->self->name;
- char filename[PATH_MAX] = "";
- char line[4096];
- FILE *f;
- // Use first Address statement in own host config file
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
- scan_for_hostname(filename, &hostname, &port);
+static bool is_valid_hostname(const char *hostname) {
+ for(const char *p = hostname; *p; p++) {
+ if(!(isalnum(*p) || *p == '-' || *p == '.' || *p == ':'))
+ return false;
+ }
- if(hostname)
- goto done;
+ return true;
+}
+
+static void set_timeout(int sock, int timeout) {
+#ifdef _WIN32
+ DWORD tv = timeout;
+#else
+ struct timeval tv;
+ tv.tv_sec = timeout / 1000;
+ tv.tv_usec = (timeout - tv.tv_sec * 1000) * 1000;
+#endif
+ setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+ setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
+}
+
+char *meshlink_get_external_address(meshlink_handle_t *mesh) {
+ char *hostname = NULL;
- // If that doesn't work, guess externally visible hostname
logger(mesh, MESHLINK_DEBUG, "Trying to discover externally visible hostname...\n");
struct addrinfo *ai = str2addrinfo("meshlink.io", "80", SOCK_STREAM);
struct addrinfo *aip = ai;
static const char request[] = "GET http://www.meshlink.io/host.cgi HTTP/1.0\r\n\r\n";
+ char line[256];
while(aip) {
int s = socket(aip->ai_family, aip->ai_socktype, aip->ai_protocol);
if(s >= 0) {
+ set_timeout(s, 5000);
if(connect(s, aip->ai_addr, aip->ai_addrlen)) {
closesocket(s);
s = -1;
}
}
if(s >= 0) {
- send(s, request, sizeof request - 1, 0);
- int len = recv(s, line, sizeof line - 1, MSG_WAITALL);
+ send(s, request, sizeof(request) - 1, 0);
+ int len = recv(s, line, sizeof(line) - 1, MSG_WAITALL);
if(len > 0) {
line[len] = 0;
if(line[len - 1] == '\n')
freeaddrinfo(ai);
// Check that the hostname is reasonable
- if(hostname) {
- for(char *p = hostname; *p; p++) {
- if(isalnum(*p) || *p == '-' || *p == '.' || *p == ':')
- continue;
- // If not, forget it.
- free(hostname);
- hostname = NULL;
- break;
- }
+ if(hostname && !is_valid_hostname(hostname)) {
+ free(hostname);
+ hostname = NULL;
}
+ if(!hostname)
+ meshlink_errno = MESHLINK_ERESOLV;
+
+ return hostname;
+}
+
+static char *get_my_hostname(meshlink_handle_t *mesh) {
+ char *hostname = NULL;
+ char *port = NULL;
+ char *hostport = NULL;
+ char *name = mesh->self->name;
+ char filename[PATH_MAX] = "";
+ FILE *f;
+
+ // Use first Address statement in own host config file
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
+ scan_for_hostname(filename, &hostname, &port);
+
+ if(hostname)
+ goto done;
+
+ hostname = meshlink_get_external_address(mesh);
if(!hostname)
return NULL;
if(f) {
fprintf(f, "\nAddress = %s\n", hostname);
fclose(f);
- } else {
+ } else
logger(mesh, MESHLINK_DEBUG, "Could not append Address to %s: %s\n", filename, strerror(errno));
- }
done:
if(port) {
if(!data || !*data)
return NULL;
- if(!**data) {
+ if(! **data) {
*data = NULL;
return NULL;
}
static char line[1024];
const char *end = strchr(*data, '\n');
size_t len = end ? end - *data : strlen(*data);
- if(len >= sizeof line) {
+ if(len >= sizeof(line)) {
logger(NULL, MESHLINK_ERROR, "Maximum line length exceeded!\n");
return NULL;
}
};
char portstr[16];
- snprintf(portstr, sizeof portstr, "%d", port);
+ snprintf(portstr, sizeof(portstr), "%d", port);
if(getaddrinfo(NULL, portstr, &hint, &ai) || !ai)
return false;
int port = 0x1000 + (rand() & 0x7fff);
if(try_bind(port)) {
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->name);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->name);
FILE *f = fopen(filename, "a");
if(!f) {
logger(mesh, MESHLINK_DEBUG, "Please change MeshLink's Port manually.\n");
}
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", mesh->confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "meshlink.conf", mesh->confbase);
FILE *f = fopen(filename, "w");
if(!f) {
fprintf(f, "Name = %s\n", name);
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
FILE *fh = fopen(filename, "w");
if(!fh) {
logger(mesh, MESHLINK_DEBUG, "Could not create file %s: %s\n", filename, strerror(errno));
return false;
}
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, value);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, value);
f = fopen(filename, "w");
if(!f) {
if(!b64key) {
fclose(fh);
return false;
- }
+ }
fprintf(fh, "ECDSAPublicKey = %s\n", b64key);
fprintf(fh, "Port = %s\n", mesh->myport);
}
static bool invitation_send(void *handle, uint8_t type, const void *data, size_t len) {
- meshlink_handle_t* mesh = handle;
+ meshlink_handle_t *mesh = handle;
while(len) {
int result = send(mesh->sock, data, len, 0);
if(result == -1 && errno == EINTR)
}
static bool invitation_receive(void *handle, uint8_t type, const void *msg, uint16_t len) {
- meshlink_handle_t* mesh = handle;
+ meshlink_handle_t *mesh = handle;
switch(type) {
- case SPTPS_HANDSHAKE:
- return sptps_send_record(&(mesh->sptps), 0, mesh->cookie, sizeof mesh->cookie);
-
- case 0:
- mesh->data = xrealloc(mesh->data, mesh->thedatalen + len + 1);
- memcpy(mesh->data + mesh->thedatalen, msg, len);
- mesh->thedatalen += len;
- mesh->data[mesh->thedatalen] = 0;
- break;
-
- case 1:
- mesh->thedatalen = 0;
- return finalize_join(mesh);
-
- case 2:
- logger(mesh, MESHLINK_DEBUG, "Invitation succesfully accepted.\n");
- shutdown(mesh->sock, SHUT_RDWR);
- mesh->success = true;
- break;
-
- default:
- return false;
+ case SPTPS_HANDSHAKE:
+ return sptps_send_record(&(mesh->sptps), 0, mesh->cookie, sizeof(mesh)->cookie);
+
+ case 0:
+ mesh->data = xrealloc(mesh->data, mesh->thedatalen + len + 1);
+ memcpy(mesh->data + mesh->thedatalen, msg, len);
+ mesh->thedatalen += len;
+ mesh->data[mesh->thedatalen] = 0;
+ break;
+
+ case 1:
+ mesh->thedatalen = 0;
+ return finalize_join(mesh);
+
+ case 2:
+ logger(mesh, MESHLINK_DEBUG, "Invitation succesfully accepted.\n");
+ shutdown(mesh->sock, SHUT_RDWR);
+ mesh->success = true;
+ break;
+
+ default:
+ return false;
}
return true;
}
-static bool recvline(meshlink_handle_t* mesh, size_t len) {
+static bool recvline(meshlink_handle_t *mesh, size_t len) {
char *newline = NULL;
if(!mesh->sock)
abort();
while(!(newline = memchr(mesh->buffer, '\n', mesh->blen))) {
- int result = recv(mesh->sock, mesh->buffer + mesh->blen, sizeof mesh->buffer - mesh->blen, 0);
+ int result = recv(mesh->sock, mesh->buffer + mesh->blen, sizeof(mesh)->buffer - mesh->blen, 0);
if(result == -1 && errno == EINTR)
continue;
else if(result <= 0)
va_list ap;
va_start(ap, format);
- blen = vsnprintf(buffer, sizeof buffer, format, ap);
+ blen = vsnprintf(buffer, sizeof(buffer), format, ap);
va_end(ap);
- if(blen < 1 || blen >= sizeof buffer)
+ if(blen < 1 || blen >= sizeof(buffer))
return false;
buffer[blen] = '\n';
};
const char *meshlink_strerror(meshlink_errno_t err) {
- if(err < 0 || err >= sizeof errstr / sizeof *errstr)
+ if(err < 0 || err >= sizeof(errstr) / sizeof(*errstr))
return "Invalid error code";
return errstr[err];
}
} else
logger(mesh, MESHLINK_DEBUG, "Done.\n");
- snprintf(privname, sizeof privname, "%s" SLASH "ecdsa_key.priv", mesh->confbase);
- f = fopen(privname, "w");
+ snprintf(privname, sizeof(privname), "%s" SLASH "ecdsa_key.priv", mesh->confbase);
+ f = fopen(privname, "wb");
if(!f) {
meshlink_errno = MESHLINK_ESTORAGE;
fclose(f);
- snprintf(pubname, sizeof pubname, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->name);
+ snprintf(pubname, sizeof(pubname), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->name);
f = fopen(pubname, "a");
if(!f) {
return true;
}
+static struct timeval idle(event_loop_t *loop, void *data) {
+ meshlink_handle_t *mesh = data;
+ struct timeval t, tmin = {3600, 0};
+ for splay_each(node_t, n, mesh->nodes) {
+ if(!n->utcp)
+ continue;
+ t = utcp_timeout(n->utcp);
+ if(timercmp(&t, &tmin, <))
+ tmin = t;
+ }
+ return tmin;
+}
+
+// Find out what local address a socket would use if we connect to the given address.
+// We do this using connect() on a UDP socket, so the kernel has to resolve the address
+// of both endpoints, but this will actually not send any UDP packet.
+static bool getlocaladdrname(char *destaddr, char *host, socklen_t hostlen) {
+ struct addrinfo *rai = NULL;
+ const struct addrinfo hint = {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_DGRAM,
+ .ai_protocol = IPPROTO_UDP,
+ };
+
+ if(getaddrinfo(destaddr, "80", &hint, &rai) || !rai)
+ return false;
+
+ int sock = socket(rai->ai_family, rai->ai_socktype, rai->ai_protocol);
+ if(sock == -1) {
+ freeaddrinfo(rai);
+ return false;
+ }
+
+ if(connect(sock, rai->ai_addr, rai->ai_addrlen) && !sockwouldblock(errno)) {
+ freeaddrinfo(rai);
+ return false;
+ }
+
+ freeaddrinfo(rai);
+
+ struct sockaddr_storage sn;
+ socklen_t sl = sizeof(sn);
+
+ if(getsockname(sock, (struct sockaddr *)&sn, &sl))
+ return false;
+
+ if(getnameinfo((struct sockaddr *)&sn, sl, host, hostlen, NULL, 0, NI_NUMERICHOST | NI_NUMERICSERV))
+ return false;
+
+ return true;
+}
+
+// Get our local address(es) by simulating connecting to an Internet host.
+static void add_local_addresses(meshlink_handle_t *mesh) {
+ char host[NI_MAXHOST];
+ char entry[MAX_STRING_SIZE];
+
+ // IPv4 example.org
+
+ if(getlocaladdrname("93.184.216.34", host, sizeof(host))) {
+ snprintf(entry, sizeof(entry), "%s %s", host, mesh->myport);
+ append_config_file(mesh, mesh->name, "Address", entry);
+ }
+
+ // IPv6 example.org
+
+ if(getlocaladdrname("2606:2800:220:1:248:1893:25c8:1946", host, sizeof(host))) {
+ snprintf(entry, sizeof(entry), "%s %s", host, mesh->myport);
+ append_config_file(mesh, mesh->name, "Address", entry);
+ }
+}
+
static bool meshlink_setup(meshlink_handle_t *mesh) {
if(mkdir(mesh->confbase, 0777) && errno != EEXIST) {
logger(mesh, MESHLINK_DEBUG, "Could not create directory %s: %s\n", mesh->confbase, strerror(errno));
}
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "hosts", mesh->confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts", mesh->confbase);
if(mkdir(filename, 0777) && errno != EEXIST) {
logger(mesh, MESHLINK_DEBUG, "Could not create directory %s: %s\n", filename, strerror(errno));
return false;
}
- snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", mesh->confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "meshlink.conf", mesh->confbase);
if(!access(filename, F_OK)) {
logger(mesh, MESHLINK_DEBUG, "Configuration file %s already exists!\n", filename);
return true;
}
-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, dev_class_t devclass, size_t size) {
-
+meshlink_handle_t *meshlink_open(const char *confbase, const char *name, const char *appname, dev_class_t devclass) {
// Validate arguments provided by the application
bool usingname = false;
-
+
logger(NULL, MESHLINK_DEBUG, "meshlink_open called\n");
if(!confbase || !*confbase) {
if(!name || !*name) {
logger(NULL, MESHLINK_ERROR, "No name given!\n");
//return NULL;
- }
- else { //check name only if there is a name != 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;
- } else { usingname = true;}
+ } else
+ usingname = true;
}
if(devclass < 0 || devclass > _DEV_CLASS_MAX) {
return NULL;
}
- meshlink_handle_t *mesh = xzalloc(size);
+ meshlink_handle_t *mesh = xzalloc(sizeof(meshlink_handle_t));
mesh->confbase = xstrdup(confbase);
mesh->appname = xstrdup(appname);
mesh->devclass = devclass;
- if (usingname) mesh->name = xstrdup(name);
+ if(usingname) mesh->name = xstrdup(name);
// initialize mutex
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
pthread_mutex_init(&(mesh->mesh_mutex), &attr);
-
+
mesh->threadstarted = false;
event_loop_init(&mesh->loop);
mesh->loop.data = mesh;
// Check whether meshlink.conf already exists
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "meshlink.conf", confbase);
if(access(filename, R_OK)) {
if(errno == ENOENT) {
return NULL;
}
+ add_local_addresses(mesh);
+
+ idle_set(&mesh->loop, idle, mesh);
+
logger(NULL, MESHLINK_DEBUG, "meshlink_open returning\n");
return mesh;
}
meshlink_errno = MESHLINK_EINVAL;
return false;
}
- pthread_mutex_lock(&(mesh->mesh_mutex));
-
+
logger(mesh, MESHLINK_DEBUG, "meshlink_start called\n");
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ if(mesh->threadstarted) {
+ logger(mesh, MESHLINK_DEBUG, "thread was already running\n");
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ return true;
+ }
+
+ if(mesh->listen_socket[0].tcp.fd < 0) {
+ logger(mesh, MESHLINK_ERROR, "Listening socket not open\n");
+ meshlink_errno = MESHLINK_ENETWORK;
+ return false;
+ }
+
mesh->thedatalen = 0;
// TODO: open listening sockets first
//Check that a valid name is set
- if(!mesh->name ) {
+ if(!mesh->name) {
logger(mesh, MESHLINK_DEBUG, "No name given!\n");
meshlink_errno = MESHLINK_EINVAL;
pthread_mutex_unlock(&(mesh->mesh_mutex));
// Start the main thread
+ event_loop_start(&mesh->loop);
+
if(pthread_create(&mesh->thread, NULL, meshlink_main_loop, mesh) != 0) {
logger(mesh, MESHLINK_DEBUG, "Could not start thread: %s\n", strerror(errno));
- memset(&mesh->thread, 0, sizeof mesh->thread);
+ memset(&mesh->thread, 0, sizeof(mesh)->thread);
meshlink_errno = MESHLINK_EINTERNAL;
pthread_mutex_unlock(&(mesh->mesh_mutex));
return false;
}
- mesh->threadstarted=true;
+ mesh->threadstarted = true;
- discovery_start(mesh);
+ if(mesh->discovery)
+ discovery_start(mesh);
pthread_mutex_unlock(&(mesh->mesh_mutex));
return true;
logger(mesh, MESHLINK_DEBUG, "meshlink_stop called\n");
// Stop discovery
- discovery_stop(mesh);
+ if(mesh->discovery)
+ discovery_stop(mesh);
- // Shut down a listening socket to signal the main thread to shut down
+ // Shut down the main thread
+ event_loop_stop(&mesh->loop);
+ // Send ourselves a UDP packet to kick the event loop
listen_socket_t *s = &mesh->listen_socket[0];
- shutdown(s->tcp.fd, SHUT_RDWR);
+ if(sendto(s->udp.fd, "", 1, MSG_NOSIGNAL, &s->sa.sa, SALEN(s->sa.sa)) == -1)
+ logger(mesh, MESHLINK_ERROR, "Could not send a UDP packet to ourself");
// Wait for the main thread to finish
pthread_mutex_unlock(&(mesh->mesh_mutex));
mesh->threadstarted = false;
- // Fix the socket
-
- closesocket(s->tcp.fd);
- io_del(&mesh->loop, &s->tcp);
- s->tcp.fd = setup_listen_socket(&s->sa);
- if(s->tcp.fd < 0)
- logger(mesh, MESHLINK_ERROR, "Could not repair listenen socket!");
- else
- io_add(&mesh->loop, &s->tcp, handle_new_meta_connection, s, s->tcp.fd, IO_READ);
-
pthread_mutex_unlock(&(mesh->mesh_mutex));
}
return;
}
+ // stop can be called even if mesh has not been started
+ meshlink_stop(mesh);
+
// lock is not released after this
pthread_mutex_lock(&(mesh->mesh_mutex));
free(mesh->confbase);
pthread_mutex_destroy(&(mesh->mesh_mutex));
- memset(mesh, 0, sizeof *mesh);
+ memset(mesh, 0, sizeof(*mesh));
free(mesh);
}
+static void deltree(const char *dirname) {
+ DIR *d = opendir(dirname);
+ if(d) {
+ struct dirent *ent;
+ while((ent = readdir(d))) {
+ if(ent->d_name[0] == '.')
+ continue;
+ char filename[PATH_MAX];
+ snprintf(filename, sizeof(filename), "%s" SLASH "%s", dirname, ent->d_name);
+ if(unlink(filename))
+ deltree(filename);
+ }
+ closedir(d);
+ }
+ rmdir(dirname);
+ return;
+}
+
+bool meshlink_destroy(const char *confbase) {
+ if(!confbase) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ char filename[PATH_MAX];
+ snprintf(filename, sizeof(filename), "%s" SLASH "meshlink.conf", confbase);
+
+ if(unlink(filename)) {
+ if(errno == ENOENT) {
+ meshlink_errno = MESHLINK_ENOENT;
+ return false;
+ } else {
+ logger(NULL, MESHLINK_ERROR, "Cannot delete %s: %s\n", filename, strerror(errno));
+ meshlink_errno = MESHLINK_ESTORAGE;
+ return false;
+ }
+ }
+
+ deltree(confbase);
+
+ return true;
+}
+
void meshlink_set_receive_cb(meshlink_handle_t *mesh, meshlink_receive_cb_t cb) {
if(!mesh) {
meshlink_errno = MESHLINK_EINVAL;
meshlink_packethdr_t *hdr;
// Validate arguments
- if(!mesh || !destination || len >= MAXSIZE - sizeof *hdr) {
+ if(!mesh || !destination || len >= MAXSIZE - sizeof(*hdr)) {
meshlink_errno = MESHLINK_EINVAL;
return false;
}
}
// Prepare the packet
- vpn_packet_t *packet = malloc(sizeof *packet);
+ vpn_packet_t *packet = malloc(sizeof(*packet));
if(!packet) {
meshlink_errno = MESHLINK_ENOMEM;
return false;
packet->probe = false;
packet->tcp = false;
- packet->len = len + sizeof *hdr;
+ packet->len = len + sizeof(*hdr);
hdr = (meshlink_packethdr_t *)packet->data;
- memset(hdr, 0, sizeof *hdr);
- memcpy(hdr->destination, destination->name, sizeof hdr->destination);
- memcpy(hdr->source, mesh->self->name, sizeof hdr->source);
+ memset(hdr, 0, sizeof(*hdr));
+ // leave the last byte as 0 to make sure strings are always
+ // null-terminated if they are longer than the buffer
+ strncpy(hdr->destination, destination->name, (sizeof(hdr)->destination) - 1);
+ strncpy(hdr->source, mesh->self->name, (sizeof(hdr)->source) - 1);
- memcpy(packet->data + sizeof *hdr, data, len);
+ memcpy(packet->data + sizeof(*hdr), data, len);
// Queue it
if(!meshlink_queue_push(&mesh->outpacketqueue, packet)) {
}
// Notify event loop
- signal_trigger(&(mesh->loop),&(mesh->datafromapp));
-
+ signal_trigger(&(mesh->loop), &(mesh->datafromapp));
+
return true;
}
if(!n->status.reachable) {
pthread_mutex_unlock(&(mesh->mesh_mutex));
return 0;
-
- }
- else if(n->mtuprobes > 30 && n->minmtu) {
+
+ } else if(n->mtuprobes > 30 && n->minmtu) {
pthread_mutex_unlock(&(mesh->mesh_mutex));
return n->minmtu;
- }
- else {
+ } else {
pthread_mutex_unlock(&(mesh->mesh_mutex));
return MTU;
}
return fingerprint;
}
+meshlink_node_t *meshlink_get_self(meshlink_handle_t *mesh) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ }
+
+ return (meshlink_node_t *)mesh->self;
+}
+
meshlink_node_t *meshlink_get_node(meshlink_handle_t *mesh, const char *name) {
if(!mesh || !name) {
meshlink_errno = MESHLINK_EINVAL;
pthread_mutex_lock(&(mesh->mesh_mutex));
*nmemb = mesh->nodes->count;
- result = realloc(nodes, *nmemb * sizeof *nodes);
+ result = realloc(nodes, *nmemb * sizeof(*nodes));
if(result) {
meshlink_node_t **p = result;
if(!n->ecdsa) {
meshlink_errno = MESHLINK_EINTERNAL;
rval = false;
- } else {
+ } else
rval = ecdsa_verify(((struct node_t *)source)->ecdsa, data, len, signature);
- }
pthread_mutex_unlock(&(mesh->mesh_mutex));
return rval;
}
static bool refresh_invitation_key(meshlink_handle_t *mesh) {
char filename[PATH_MAX];
-
+
pthread_mutex_lock(&(mesh->mesh_mutex));
- snprintf(filename, sizeof filename, "%s" SLASH "invitations", mesh->confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "invitations", mesh->confbase);
if(mkdir(filename, 0700) && errno != EEXIST) {
logger(mesh, MESHLINK_DEBUG, "Could not create directory %s: %s\n", filename, strerror(errno));
meshlink_errno = MESHLINK_ESTORAGE;
continue;
char invname[PATH_MAX];
struct stat st;
- snprintf(invname, sizeof invname, "%s" SLASH "%s", filename, ent->d_name);
+ snprintf(invname, sizeof(invname), "%s" SLASH "%s", filename, ent->d_name);
if(!stat(invname, &st)) {
if(mesh->invitation_key && deadline < st.st_mtime)
count++;
closedir(dir);
- snprintf(filename, sizeof filename, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", mesh->confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "invitations" SLASH "ecdsa_key.priv", mesh->confbase);
// Remove the key if there are no outstanding invitations.
if(!count) {
}
// Create a new key if necessary.
- FILE *f = fopen(filename, "r");
+ FILE *f = fopen(filename, "rb");
if(!f) {
if(errno != ENOENT) {
logger(mesh, MESHLINK_DEBUG, "Could not read %s: %s\n", filename, strerror(errno));
pthread_mutex_unlock(&(mesh->mesh_mutex));
return false;
}
- f = fopen(filename, "w");
+ f = fopen(filename, "wb");
if(!f) {
logger(mesh, MESHLINK_DEBUG, "Could not write %s: %s\n", filename, strerror(errno));
meshlink_errno = MESHLINK_ESTORAGE;
meshlink_errno = MESHLINK_EINVAL;
return false;
}
-
+
+ if(!is_valid_hostname(address)) {
+ logger(mesh, MESHLINK_DEBUG, "Invalid character in address: %s\n", address);
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
bool rval = false;
pthread_mutex_lock(&(mesh->mesh_mutex));
+ rval = append_config_file(mesh, mesh->self->name, "Address", address);
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
- for(const char *p = address; *p; p++) {
- if(isalnum(*p) || *p == '-' || *p == '.' || *p == ':')
- continue;
- logger(mesh, MESHLINK_DEBUG, "Invalid character in address: %s\n", address);
+ return rval;
+}
+
+bool meshlink_add_external_address(meshlink_handle_t *mesh) {
+ if(!mesh) {
meshlink_errno = MESHLINK_EINVAL;
- pthread_mutex_unlock(&(mesh->mesh_mutex));
return false;
}
+ char *address = meshlink_get_external_address(mesh);
+ if(!address)
+ return false;
+
+ bool rval = false;
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
rval = append_config_file(mesh, mesh->self->name, "Address", address);
pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+ free(address);
+ return rval;
+}
+
+int meshlink_get_port(meshlink_handle_t *mesh) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return -1;
+ }
+
+ if(!mesh->myport) {
+ meshlink_errno = MESHLINK_EINTERNAL;
+ return -1;
+ }
+
+ return atoi(mesh->myport);
+}
+
+bool meshlink_set_port(meshlink_handle_t *mesh, int port) {
+ if(!mesh || port < 0 || port >= 65536 || mesh->threadstarted) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return false;
+ }
+
+ if(mesh->myport && port == atoi(mesh->myport))
+ return true;
+
+ if(!try_bind(port)) {
+ meshlink_errno = MESHLINK_ENETWORK;
+ return false;
+ }
+
+ bool rval = false;
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+ if(mesh->threadstarted) {
+ meshlink_errno = MESHLINK_EINVAL;
+ goto done;
+ }
+
+ close_network_connections(mesh);
+ exit_configuration(&mesh->config);
+
+ char portstr[10];
+ snprintf(portstr, sizeof(portstr), "%d", port);
+ portstr[sizeof(portstr) - 1] = 0;
+
+ modify_config_file(mesh, mesh->name, "Port", portstr, true);
+
+ init_configuration(&mesh->config);
+
+ if(!read_server_config(mesh))
+ meshlink_errno = MESHLINK_ESTORAGE;
+ else if(!setup_network(mesh))
+ meshlink_errno = MESHLINK_ENETWORK;
+ else
+ rval = true;
+
+done:
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+
return rval;
}
meshlink_errno = MESHLINK_EINVAL;
return NULL;
}
-
+
pthread_mutex_lock(&(mesh->mesh_mutex));
// Check validity of the new node's name
// Ensure no host configuration file with that name exists
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
if(!access(filename, F_OK)) {
logger(mesh, MESHLINK_DEBUG, "A host config file for %s already exists!\n", name);
meshlink_errno = MESHLINK_EEXIST;
char buf[18 + strlen(fingerprint)];
char cookiehash[64];
memcpy(buf, cookie, 18);
- memcpy(buf + 18, fingerprint, sizeof buf - 18);
- sha512(buf, sizeof buf, cookiehash);
+ memcpy(buf + 18, fingerprint, sizeof(buf) - 18);
+ sha512(buf, sizeof(buf), cookiehash);
b64encode_urlsafe(cookiehash, cookiehash, 18);
b64encode_urlsafe(cookie, cookie, 18);
free(fingerprint);
// Create a file containing the details of the invitation.
- snprintf(filename, sizeof filename, "%s" SLASH "invitations" SLASH "%s", mesh->confbase, cookiehash);
+ snprintf(filename, sizeof(filename), "%s" SLASH "invitations" SLASH "%s", mesh->confbase, cookiehash);
int ifd = open(filename, O_RDWR | O_CREAT | O_EXCL, 0600);
if(!ifd) {
logger(mesh, MESHLINK_DEBUG, "Could not create invitation file %s: %s\n", filename, strerror(errno));
// Fill in the details.
fprintf(f, "Name = %s\n", name);
//if(netname)
- // fprintf(f, "NetName = %s\n", netname);
+ // fprintf(f, "NetName = %s\n", netname);
fprintf(f, "ConnectTo = %s\n", mesh->self->name);
// Copy Broadcast and Mode
- snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", mesh->confbase);
+ snprintf(filename, sizeof(filename), "%s" SLASH "meshlink.conf", mesh->confbase);
FILE *tc = fopen(filename, "r");
if(tc) {
char buf[1024];
- while(fgets(buf, sizeof buf, tc)) {
+ while(fgets(buf, sizeof(buf), tc)) {
if((!strncasecmp(buf, "Mode", 4) && strchr(" \t=", buf[4]))
- || (!strncasecmp(buf, "Broadcast", 9) && strchr(" \t=", buf[9]))) {
+ || (!strncasecmp(buf, "Broadcast", 9) && strchr(" \t=", buf[9]))) {
fputs(buf, f);
// Make sure there is a newline character.
if(!strchr(buf, '\n'))
fprintf(f, "#---------------------------------------------------------------#\n");
fprintf(f, "Name = %s\n", mesh->self->name);
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name);
fcopy(f, filename);
fclose(f);
meshlink_errno = MESHLINK_EINVAL;
return false;
}
-
+
pthread_mutex_lock(&(mesh->mesh_mutex));
//TODO: think of a better name for this variable, or of a different way to tokenize the invitation URL.
char *b64key = ecdsa_get_base64_public_key(key);
//Before doing meshlink_join make sure we are not connected to another mesh
- if ( mesh->threadstarted ){
+ if(mesh->threadstarted)
goto invalid;
- }
// Connect to the meshlink daemon mentioned in the URL.
struct addrinfo *ai = str2addrinfo(address, port, SOCK_STREAM);
return false;
}
+ set_timeout(mesh->sock, 5000);
+
if(connect(mesh->sock, ai->ai_addr, ai->ai_addrlen)) {
logger(mesh, MESHLINK_DEBUG, "Could not connect to %s port %s: %s\n", address, port, strerror(errno));
closesocket(mesh->sock);
char hisname[4096] = "";
int code, hismajor, hisminor = 0;
- if(!recvline(mesh, sizeof mesh->line) || sscanf(mesh->line, "%d %s %d.%d", &code, hisname, &hismajor, &hisminor) < 3 || code != 0 || hismajor != PROT_MAJOR || !check_id(hisname) || !recvline(mesh, sizeof mesh->line) || !rstrip(mesh->line) || sscanf(mesh->line, "%d ", &code) != 1 || code != ACK || strlen(mesh->line) < 3) {
+ if(!recvline(mesh, sizeof(mesh)->line) || sscanf(mesh->line, "%d %s %d.%d", &code, hisname, &hismajor, &hisminor) < 3 || code != 0 || hismajor != PROT_MAJOR || !check_id(hisname) || !recvline(mesh, sizeof(mesh)->line) || !rstrip(mesh->line) || sscanf(mesh->line, "%d ", &code) != 1 || code != ACK || strlen(mesh->line) < 3) {
logger(mesh, MESHLINK_DEBUG, "Cannot read greeting from peer\n");
closesocket(mesh->sock);
meshlink_errno = MESHLINK_ENETWORK;
}
// Start an SPTPS session
- if(!sptps_start(&mesh->sptps, mesh, true, false, key, hiskey, "meshlink invitation", 15, invitation_send, invitation_receive)) {
+ if(!sptps_start(&mesh->sptps, mesh, true, false, key, hiskey, meshlink_invitation_label, sizeof(meshlink_invitation_label), invitation_send, invitation_receive)) {
meshlink_errno = MESHLINK_EINTERNAL;
pthread_mutex_unlock(&(mesh->mesh_mutex));
return false;
int len;
- while((len = recv(mesh->sock, mesh->line, sizeof mesh->line, 0))) {
+ while((len = recv(mesh->sock, mesh->line, sizeof(mesh)->line, 0))) {
if(len < 0) {
if(errno == EINTR)
continue;
}
pthread_mutex_lock(&(mesh->mesh_mutex));
-
+
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name);
FILE *f = fopen(filename, "r");
if(!f) {
logger(mesh, MESHLINK_DEBUG, "Could not open %s: %s\n", filename, strerror(errno));
fclose(f);
buf[len - 1] = 0;
-
+
pthread_mutex_unlock(&(mesh->mesh_mutex));
return buf;
}
meshlink_errno = MESHLINK_EINVAL;
return false;
}
-
+
pthread_mutex_lock(&(mesh->mesh_mutex));
if(strncmp(data, "Name = ", 7)) {
}
char filename[PATH_MAX];
- snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
+ snprintf(filename, sizeof(filename), "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
if(!access(filename, F_OK)) {
logger(mesh, MESHLINK_DEBUG, "File %s already exists, not importing\n", filename);
meshlink_errno = MESHLINK_EEXIST;
}
pthread_mutex_lock(&(mesh->mesh_mutex));
-
+
node_t *n;
- n = (node_t*)node;
- n->status.blacklisted=true;
- logger(mesh, MESHLINK_DEBUG, "Blacklisted %s.\n",node->name);
+ n = (node_t *)node;
+ n->status.blacklisted = true;
+ logger(mesh, MESHLINK_DEBUG, "Blacklisted %s.\n", node->name);
//Make blacklisting persistent in the config file
append_config_file(mesh, n->name, "blacklisted", "yes");
}
pthread_mutex_lock(&(mesh->mesh_mutex));
-
+
node_t *n = (node_t *)node;
n->status.blacklisted = false;
return;
}
+void meshlink_set_default_blacklist(meshlink_handle_t *mesh, bool blacklist) {
+ mesh->default_blacklist = blacklist;
+}
+
/* Hint that a hostname may be found at an address
* See header file for detailed comment.
*/
void meshlink_hint_address(meshlink_handle_t *mesh, meshlink_node_t *node, const struct sockaddr *addr) {
if(!mesh || !node || !addr)
return;
-
+
+ // Ignore hints about ourself.
+ if((node_t *)node == mesh->self)
+ return;
+
pthread_mutex_lock(&(mesh->mesh_mutex));
-
+
char *host = NULL, *port = NULL, *str = NULL;
sockaddr2str((const sockaddr_t *)addr, &host, &port);
if(host && port) {
xasprintf(&str, "%s %s", host, port);
- if ( (strncmp ("fe80",host,4) != 0) && ( strncmp("127.",host,4) != 0 ) && ( strcmp("localhost",host) !=0 ) )
+ 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");
}
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 {
+ if(result_size > *nmemb)
+ result = realloc(edges, result_size * sizeof(meshlink_edge_t *));
+ else
result = edges;
- }
if(result) {
meshlink_edge_t **p = result;
}
n++;
// the first *nmemb members of result can be re-used
- if(n > *nmemb) {
- copy = xzalloc(sizeof *copy);
- }
- else {
+ 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->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--) {
+ for(int i = *nmemb; i > result_size; i--)
free(result[i - 1]);
- }
- result = realloc(result, result_size * sizeof (meshlink_edge_t*));
+ result = realloc(result, result_size * sizeof(meshlink_edge_t *));
*nmemb = result_size;
} else {
*nmemb = 0;
- free(result);
meshlink_errno = MESHLINK_ENOMEM;
}
abort();
node_t *n = channel->node;
meshlink_handle_t *mesh = n->mesh;
- if(!channel->receive_cb)
- return -1;
- else {
+ if(channel->receive_cb)
channel->receive_cb(mesh, channel, data, len);
- return len;
- }
+ return len;
}
static void channel_accept(struct utcp_connection *utcp_connection, uint16_t port) {
meshlink_handle_t *mesh = n->mesh;
if(!mesh->channel_accept_cb)
return;
- meshlink_channel_t *channel = xzalloc(sizeof *channel);
+ meshlink_channel_t *channel = xzalloc(sizeof(*channel));
channel->node = n;
channel->c = utcp_connection;
if(mesh->channel_accept_cb(mesh, channel, port, NULL, 0))
static ssize_t channel_send(struct utcp *utcp, const void *data, size_t len) {
node_t *n = utcp->priv;
meshlink_handle_t *mesh = n->mesh;
- char hex[len * 2 + 1];
- bin2hex(data, hex, len);
- logger(mesh, MESHLINK_WARNING, "channel_send(%p, %p, %zu): %s\n", utcp, data, len, hex);
return meshlink_send(mesh, (meshlink_node_t *)n, data, len) ? len : -1;
}
void meshlink_set_channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, meshlink_channel_receive_cb_t cb) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
channel->receive_cb = cb;
}
node_t *n = (node_t *)source;
if(!n->utcp)
abort();
- char hex[len * 2 + 1];
- bin2hex(data, hex, len);
- logger(mesh, MESHLINK_WARNING, "channel_receive(%p, %p, %zu): %s\n", n->utcp, data, len, hex);
utcp_recv(n->utcp, data, len);
}
}
void meshlink_set_channel_accept_cb(meshlink_handle_t *mesh, meshlink_channel_accept_cb_t cb) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
pthread_mutex_lock(&mesh->mesh_mutex);
mesh->channel_accept_cb = cb;
mesh->receive_cb = channel_receive;
for splay_each(node_t, n, mesh->nodes) {
- if(!n->utcp && n != mesh->self) {
- logger(mesh, MESHLINK_WARNING, "utcp_init on node %s", n->name);
+ if(!n->utcp && n != mesh->self)
n->utcp = utcp_init(channel_accept, channel_pre_accept, channel_send, n);
- }
}
pthread_mutex_unlock(&mesh->mesh_mutex);
}
-void meshlink_channel_init(meshlink_handle_t *mesh) {
-}
+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(!mesh || !node) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return NULL;
+ }
-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) {
- logger(mesh, MESHLINK_WARNING, "meshlink_channel_open(%p, %s, %u, %p, %p, %zu)\n", mesh, node->name, port, cb, data, len);
node_t *n = (node_t *)node;
if(!n->utcp) {
n->utcp = utcp_init(channel_accept, channel_pre_accept, channel_send, n);
return NULL;
}
}
- meshlink_channel_t *channel = xzalloc(sizeof *channel);
+ meshlink_channel_t *channel = xzalloc(sizeof(*channel));
channel->node = n;
channel->receive_cb = cb;
- channel->c = utcp_connect(n->utcp, port, channel_recv, channel);
+ channel->c = utcp_connect_ex(n->utcp, port, channel_recv, channel, flags);
if(!channel->c) {
meshlink_errno = errno == ENOMEM ? MESHLINK_ENOMEM : MESHLINK_EINTERNAL;
free(channel);
return channel;
}
+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) {
+ return meshlink_channel_open_ex(mesh, node, port, cb, data, len, MESHLINK_CHANNEL_TCP);
+}
+
void meshlink_channel_shutdown(meshlink_handle_t *mesh, meshlink_channel_t *channel, int direction) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
utcp_shutdown(channel->c, direction);
}
void meshlink_channel_close(meshlink_handle_t *mesh, meshlink_channel_t *channel) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
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.
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return -1;
+ }
+
+ if(!len)
+ return 0;
+
+ if(!data) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return -1;
+ }
+
+ // TODO: more finegrained 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);
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+ ssize_t retval = utcp_send(channel->c, data, len);
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+
+ if(retval < 0)
+ meshlink_errno = MESHLINK_ENETWORK;
+ return retval;
+}
+
+uint32_t meshlink_channel_get_flags(meshlink_handle_t *mesh, meshlink_channel_t *channel) {
+ if(!mesh || !channel) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return -1;
+ }
+
+ return channel->c->flags;
}
void update_node_status(meshlink_handle_t *mesh, node_t *n) {
mesh->node_status_cb(mesh, (meshlink_node_t *)n, n->status.reachable);
}
+void meshlink_enable_discovery(meshlink_handle_t *mesh, bool enable) {
+ if(!mesh) {
+ meshlink_errno = MESHLINK_EINVAL;
+ return;
+ }
+
+ pthread_mutex_lock(&mesh->mesh_mutex);
+
+ if(mesh->discovery == enable)
+ goto end;
+
+ if(mesh->threadstarted) {
+ if(enable)
+ discovery_start(mesh);
+ else
+ discovery_stop(mesh);
+ }
+
+ mesh->discovery = enable;
+
+end:
+ pthread_mutex_unlock(&mesh->mesh_mutex);
+}
+
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) {
}
/// 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
+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