/*
net_setup.c -- Setup.
- 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 "system.h"
-#include "cipher.h"
#include "conf.h"
#include "connection.h"
-#include "digest.h"
#include "ecdsa.h"
#include "graph.h"
#include "logger.h"
#include "meshlink_internal.h"
#include "net.h"
#include "netutl.h"
+#include "packmsg.h"
#include "protocol.h"
#include "route.h"
#include "utils.h"
#include "xalloc.h"
+#include "submesh.h"
-int autoconnect = 3;
+/// Helper function to start parsing a host config file
+static bool node_get_config(meshlink_handle_t *mesh, node_t *n, config_t *config, packmsg_input_t *in) {
+ if(!config_read(mesh, "current", n->name, config, mesh->config_key)) {
+ return false;
+ }
+
+ in->ptr = config->buf;
+ in->len = config->len;
+
+ uint32_t version = packmsg_get_uint32(in);
+
+ if(version != MESHLINK_CONFIG_VERSION) {
+ logger(mesh, MESHLINK_ERROR, "Invalid config file for node %s", n->name);
+ config_free(config);
+ return false;
+ }
+
+ const char *name;
+ uint32_t len = packmsg_get_str_raw(in, &name);
+
+ if(len != strlen(n->name) || !name || strncmp(name, n->name, len)) {
+ logger(mesh, MESHLINK_ERROR, "Invalid config file for node %s", n->name);
+ config_free(config);
+ return false;
+ }
-bool node_read_ecdsa_public_key(node_t *n) {
- if(ecdsa_active(n->ecdsa))
+ return true;
+}
+
+/// Read the public key from a host config file. Used whenever we need to start an SPTPS session.
+bool node_read_public_key(meshlink_handle_t *mesh, node_t *n) {
+ if(ecdsa_active(n->ecdsa)) {
return true;
+ }
- splay_tree_t *config_tree;
- char *p;
+ config_t config;
+ packmsg_input_t in;
- init_configuration(&config_tree);
- if(!read_host_config(config_tree, n->name))
- goto exit;
+ if(!node_get_config(mesh, n, &config, &in)) {
+ return false;
+ }
+
+ packmsg_skip_element(&in); /* submesh */
+ packmsg_get_int32(&in); /* devclass */
+ packmsg_get_bool(&in); /* blacklisted */
+
+ const void *key;
+ uint32_t len = packmsg_get_bin_raw(&in, &key);
+
+ if(len != 32) {
+ config_free(&config);
+ return false;
+ }
- /* First, check for simple ECDSAPublicKey statement */
+ n->ecdsa = ecdsa_set_public_key(key);
- if(get_config_string(lookup_config(config_tree, "ECDSAPublicKey"), &p)) {
- n->ecdsa = ecdsa_set_base64_public_key(p);
- free(p);
+ // While we are at it, read known address information
+ if(!n->canonical_address) {
+ n->canonical_address = packmsg_get_str_dup(&in);
+ } else {
+ packmsg_skip_element(&in);
}
-exit:
- exit_configuration(&config_tree);
- return n->ecdsa;
+ // Append any known addresses in the config file to the list we currently have
+ uint32_t known_count = 0;
+
+ for(uint32_t i = 0; i < MAX_RECENT; i++) {
+ if(n->recent[i].sa.sa_family) {
+ known_count++;
+ }
+ }
+
+ uint32_t count = packmsg_get_array(&in);
+
+ for(uint32_t i = 0; i < count; i++) {
+ if(i < MAX_RECENT - known_count) {
+ n->recent[i + known_count] = packmsg_get_sockaddr(&in);
+ } else {
+ packmsg_skip_element(&in);
+ }
+ }
+
+ time_t last_reachable = packmsg_get_int64(&in);
+ time_t last_unreachable = packmsg_get_int64(&in);
+
+ if(!n->last_reachable) {
+ n->last_reachable = last_reachable;
+ }
+
+ if(!n->last_unreachable) {
+ n->last_unreachable = last_unreachable;
+ }
+
+ config_free(&config);
+ return true;
}
-bool read_ecdsa_public_key(connection_t *c) {
- if(ecdsa_active(c->ecdsa))
+/// Fill in node details from a config blob.
+bool node_read_from_config(meshlink_handle_t *mesh, node_t *n, const config_t *config) {
+ if(n->canonical_address) {
return true;
+ }
+
+ packmsg_input_t in = {config->buf, config->len};
+ uint32_t version = packmsg_get_uint32(&in);
- char *p;
+ if(version != MESHLINK_CONFIG_VERSION) {
+ return false;
+ }
+
+ char *name = packmsg_get_str_dup(&in);
- if(!c->config_tree) {
- init_configuration(&c->config_tree);
- if(!read_host_config(c->config_tree, c->name))
+ if(!name) {
+ return false;
+ }
+
+ if(n->name) {
+ if(strcmp(n->name, name)) {
+ free(name);
return false;
+ }
+
+ free(name);
+ } else {
+ n->name = name;
}
- /* First, check for simple ECDSAPublicKey statement */
+ char *submesh_name = packmsg_get_str_dup(&in);
+
+ if(!strcmp(submesh_name, CORE_MESH)) {
+ free(submesh_name);
+ n->submesh = NULL;
+ } else {
+ n->submesh = lookup_or_create_submesh(mesh, submesh_name);
+ free(submesh_name);
- if(get_config_string(lookup_config(c->config_tree, "ECDSAPublicKey"), &p)) {
- c->ecdsa = ecdsa_set_base64_public_key(p);
- free(p);
- return c->ecdsa;
+ if(!n->submesh) {
+ return false;
+ }
}
- return false;
+ n->devclass = packmsg_get_int32(&in);
+ n->status.blacklisted = packmsg_get_bool(&in);
+ const void *key;
+ uint32_t len = packmsg_get_bin_raw(&in, &key);
+
+ if(len) {
+ if(len != 32) {
+ return false;
+ }
+
+ if(!ecdsa_active(n->ecdsa)) {
+ n->ecdsa = ecdsa_set_public_key(key);
+ }
+ }
+
+ n->canonical_address = packmsg_get_str_dup(&in);
+ uint32_t count = packmsg_get_array(&in);
+
+ for(uint32_t i = 0; i < count; i++) {
+ if(i < MAX_RECENT) {
+ n->recent[i] = packmsg_get_sockaddr(&in);
+ } else {
+ packmsg_skip_element(&in);
+ }
+ }
+
+ n->last_reachable = packmsg_get_int64(&in);
+ n->last_unreachable = packmsg_get_int64(&in);
+
+ return packmsg_done(&in);
}
-static bool read_ecdsa_private_key(void) {
- FILE *fp;
- char *fname;
+bool node_write_config(meshlink_handle_t *mesh, node_t *n) {
+ if(!mesh->confbase) {
+ return true;
+ }
+
+ uint8_t buf[4096];
+ packmsg_output_t out = {buf, sizeof(buf)};
+
+ packmsg_add_uint32(&out, MESHLINK_CONFIG_VERSION);
+ packmsg_add_str(&out, n->name);
+ packmsg_add_str(&out, n->submesh ? n->submesh->name : CORE_MESH);
+ packmsg_add_int32(&out, n->devclass);
+ packmsg_add_bool(&out, n->status.blacklisted);
+
+ if(ecdsa_active(n->ecdsa)) {
+ packmsg_add_bin(&out, ecdsa_get_public_key(n->ecdsa), 32);
+ } else {
+ packmsg_add_bin(&out, "", 0);
+ }
+
+ packmsg_add_str(&out, n->canonical_address ? n->canonical_address : "");
+
+ uint32_t count = 0;
- xasprintf(&fname, "%s" SLASH "ecdsa_key.priv", mesh->confbase);
- fp = fopen(fname, "r");
- free(fname);
+ for(uint32_t i = 0; i < MAX_RECENT; i++) {
+ if(n->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, &n->recent[i]);
+ }
- if(!fp) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA private key file: %s", strerror(errno));
+ packmsg_add_int64(&out, n->last_reachable);
+ packmsg_add_int64(&out, n->last_unreachable);
+
+ if(!packmsg_output_ok(&out)) {
+ meshlink_errno = MESHLINK_EINTERNAL;
return false;
}
- mesh->self->connection->ecdsa = ecdsa_read_pem_private_key(fp);
- fclose(fp);
+ config_t config = {buf, packmsg_output_size(&out, buf)};
- if(!mesh->self->connection->ecdsa)
- logger(DEBUG_ALWAYS, LOG_ERR, "Reading ECDSA private key file failed: %s", strerror(errno));
+ if(!config_write(mesh, "current", n->name, &config, mesh->config_key)) {
+ call_error_cb(mesh, MESHLINK_ESTORAGE);
+ return false;
+ }
- return mesh->self->connection->ecdsa;
+ return true;
}
-static bool read_invitation_key(void) {
- FILE *fp;
- char *fname;
+static bool load_node(meshlink_handle_t *mesh, const char *name, void *priv) {
+ (void)priv;
+
+ if(!check_id(name)) {
+ return true;
+ }
- if(invitation_key) {
- ecdsa_free(invitation_key);
- invitation_key = NULL;
+ node_t *n = lookup_node(mesh, name);
+
+ if(n) {
+ return true;
}
- xasprintf(&fname, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", mesh->confbase);
+ n = new_node();
+ n->name = xstrdup(name);
- fp = fopen(fname, "r");
+ config_t config;
+ packmsg_input_t in;
- if(fp) {
- invitation_key = ecdsa_read_pem_private_key(fp);
- fclose(fp);
- if(!invitation_key)
- logger(DEBUG_ALWAYS, LOG_ERR, "Reading ECDSA private key file `%s' failed: %s", fname, strerror(errno));
+ if(!node_get_config(mesh, n, &config, &in)) {
+ free_node(n);
+ return false;
+ }
+
+ if(!node_read_from_config(mesh, n, &config)) {
+ logger(mesh, MESHLINK_ERROR, "Invalid config file for node %s", n->name);
+ config_free(&config);
+ free_node(n);
+ return false;
}
- free(fname);
- return invitation_key;
+ config_free(&config);
+
+ node_add(mesh, n);
+
+ return true;
}
-void load_all_nodes(void) {
- DIR *dir;
- struct dirent *ent;
- char *dname;
+int setup_tcp_listen_socket(meshlink_handle_t *mesh, const struct addrinfo *aip) {
+ int nfd = socket(aip->ai_family, SOCK_STREAM, IPPROTO_TCP);
- xasprintf(&dname, "%s" SLASH "hosts", mesh->confbase);
- dir = opendir(dname);
- if(!dir) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not open %s: %s", dname, strerror(errno));
- free(dname);
- return;
+ if(nfd == -1) {
+ return -1;
}
- while((ent = readdir(dir))) {
- if(!check_id(ent->d_name))
- continue;
+#ifdef FD_CLOEXEC
+ fcntl(nfd, F_SETFD, FD_CLOEXEC);
+#endif
- node_t *n = lookup_node(ent->d_name);
- if(n)
- continue;
+ int option = 1;
+ setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, (void *)&option, sizeof(option));
- n = new_node();
- n->name = xstrdup(ent->d_name);
- node_add(n);
+#if defined(IPV6_V6ONLY)
+
+ if(aip->ai_family == AF_INET6) {
+ setsockopt(nfd, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&option, sizeof(option));
}
- closedir(dir);
+#else
+#warning IPV6_V6ONLY not defined
+#endif
+
+ if(bind(nfd, aip->ai_addr, aip->ai_addrlen)) {
+ closesocket(nfd);
+ return -1;
+ }
+
+ if(listen(nfd, 3)) {
+ logger(mesh, MESHLINK_ERROR, "System call `%s' failed: %s", "listen", sockstrerror(sockerrno));
+ closesocket(nfd);
+ return -1;
+ }
+
+ return nfd;
}
+int setup_udp_listen_socket(meshlink_handle_t *mesh, const struct addrinfo *aip) {
+ int nfd = socket(aip->ai_family, SOCK_DGRAM, IPPROTO_UDP);
-char *get_name(void) {
- char *name = NULL;
+ if(nfd == -1) {
+ return -1;
+ }
- get_config_string(lookup_config(mesh->config, "Name"), &name);
+#ifdef FD_CLOEXEC
+ fcntl(nfd, F_SETFD, FD_CLOEXEC);
+#endif
- if(!name)
- return NULL;
+#ifdef O_NONBLOCK
+ int flags = fcntl(nfd, F_GETFL);
- if(!check_id(name)) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid name for mesh->self!");
- free(name);
- return NULL;
+ if(fcntl(nfd, F_SETFL, flags | O_NONBLOCK) < 0) {
+ closesocket(nfd);
+ logger(mesh, MESHLINK_ERROR, "System call `%s' failed: %s", "fcntl", strerror(errno));
+ return -1;
}
- return name;
-}
+#elif defined(WIN32)
+ unsigned long arg = 1;
-bool setup_myself_reloadable(void) {
- mesh->localdiscovery = true;
- keylifetime = 3600; // TODO: check if this can be removed as well
- maxtimeout = 900;
- autoconnect = 3;
- mesh->self->options |= OPTION_PMTU_DISCOVERY;
+ if(ioctlsocket(nfd, FIONBIO, &arg) != 0) {
+ closesocket(nfd);
+ logger(mesh, MESHLINK_ERROR, "Call to `%s' failed: %s", "ioctlsocket", sockstrerror(sockerrno));
+ return -1;
+ }
- read_invitation_key();
+#endif
- return true;
+ int option = 1;
+ setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, (void *)&option, sizeof(option));
+ setsockopt(nfd, SOL_SOCKET, SO_BROADCAST, (void *)&option, sizeof(option));
+
+#if defined(IPV6_V6ONLY)
+
+ if(aip->ai_family == AF_INET6) {
+ setsockopt(nfd, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&option, sizeof(option));
+ }
+
+#endif
+
+#if defined(IP_DONTFRAG) && !defined(IP_DONTFRAGMENT)
+#define IP_DONTFRAGMENT IP_DONTFRAG
+#endif
+
+#if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)
+ option = IP_PMTUDISC_DO;
+ setsockopt(nfd, IPPROTO_IP, IP_MTU_DISCOVER, (void *)&option, sizeof(option));
+#elif defined(IP_DONTFRAGMENT)
+ option = 1;
+ setsockopt(nfd, IPPROTO_IP, IP_DONTFRAGMENT, (void *)&option, sizeof(option));
+#endif
+
+ if(aip->ai_family == AF_INET6) {
+#if defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO)
+ option = IPV6_PMTUDISC_DO;
+ setsockopt(nfd, IPPROTO_IPV6, IPV6_MTU_DISCOVER, (void *)&option, sizeof(option));
+#elif defined(IPV6_DONTFRAG)
+ option = 1;
+ setsockopt(nfd, IPPROTO_IPV6, IPV6_DONTFRAG, (void *)&option, sizeof(option));
+#endif
+ }
+
+ if(bind(nfd, aip->ai_addr, aip->ai_addrlen)) {
+ closesocket(nfd);
+ return -1;
+ }
+
+ return nfd;
}
/*
Add listening sockets.
*/
-static bool add_listen_address(char *address, bool bindto) {
- char *port = mesh->myport;
-
- if(address) {
- char *space = strchr(address, ' ');
- if(space) {
- *space++ = 0;
- port = space;
- }
-
- if(!strcmp(address, "*"))
- *address = 0;
- }
+static bool add_listen_sockets(meshlink_handle_t *mesh) {
+ struct addrinfo *ai;
- struct addrinfo *ai, hint = {0};
- hint.ai_family = addressfamily;
- hint.ai_socktype = SOCK_STREAM;
- hint.ai_protocol = IPPROTO_TCP;
- hint.ai_flags = AI_PASSIVE;
+ struct addrinfo hint = {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_STREAM,
+ .ai_protocol = IPPROTO_TCP,
+ .ai_flags = AI_PASSIVE,
+ };
- int err = getaddrinfo(address && *address ? address : NULL, port, &hint, &ai);
- free(address);
+ int err = getaddrinfo(NULL, mesh->myport, &hint, &ai);
if(err || !ai) {
- logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "getaddrinfo", err == EAI_SYSTEM ? strerror(err) : gai_strerror(err));
+ logger(mesh, MESHLINK_ERROR, "System call `%s' failed: %s", "getaddrinfo", err == EAI_SYSTEM ? strerror(err) : gai_strerror(err));
return false;
}
+ bool success = false;
+
for(struct addrinfo *aip = ai; aip; aip = aip->ai_next) {
// Ignore duplicate addresses
bool found = false;
- for(int i = 0; i < listen_sockets; i++)
- if(!memcmp(&listen_socket[i].sa, aip->ai_addr, aip->ai_addrlen)) {
+ for(int i = 0; i < mesh->listen_sockets; i++) {
+ if(!memcmp(&mesh->listen_socket[i].sa, aip->ai_addr, aip->ai_addrlen)) {
found = true;
break;
}
+ }
- if(found)
+ if(found) {
continue;
+ }
- if(listen_sockets >= MAXSOCKETS) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Too many listening sockets");
+ if(mesh->listen_sockets >= MAXSOCKETS) {
+ logger(mesh, MESHLINK_ERROR, "Too many listening sockets");
return false;
}
- int tcp_fd = setup_listen_socket((sockaddr_t *) aip->ai_addr);
+ /* Try to bind to TCP */
- if(tcp_fd < 0)
- continue;
+ int tcp_fd = setup_tcp_listen_socket(mesh, aip);
+
+ if(tcp_fd == -1) {
+ if(errno == EADDRINUSE) {
+ /* If this port is in use for any address family, avoid it. */
+ success = false;
+ break;
+ } else {
+ continue;
+ }
+ }
- int udp_fd = setup_vpn_in_socket((sockaddr_t *) aip->ai_addr);
+ /* If TCP worked, then we require that UDP works as well. */
- if(tcp_fd < 0) {
- close(tcp_fd);
- continue;
+ int udp_fd = setup_udp_listen_socket(mesh, aip);
+
+ if(udp_fd == -1) {
+ closesocket(tcp_fd);
+ success = false;
+ break;
}
- io_add(&listen_socket[listen_sockets].tcp, handle_new_meta_connection, &listen_socket[listen_sockets], tcp_fd, IO_READ);
- io_add(&listen_socket[listen_sockets].udp, handle_incoming_vpn_data, &listen_socket[listen_sockets], udp_fd, IO_READ);
+ io_add(&mesh->loop, &mesh->listen_socket[mesh->listen_sockets].tcp, handle_new_meta_connection, &mesh->listen_socket[mesh->listen_sockets], tcp_fd, IO_READ);
+ io_add(&mesh->loop, &mesh->listen_socket[mesh->listen_sockets].udp, handle_incoming_vpn_data, &mesh->listen_socket[mesh->listen_sockets], udp_fd, IO_READ);
- if(debug_level >= DEBUG_CONNECTIONS) {
+ if(mesh->log_level <= MESHLINK_INFO) {
char *hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr);
- logger(DEBUG_CONNECTIONS, LOG_NOTICE, "Listening on %s", hostname);
+ logger(mesh, MESHLINK_INFO, "Listening on %s", hostname);
free(hostname);
}
- listen_socket[listen_sockets].bindto = bindto;
- memcpy(&listen_socket[listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
- listen_sockets++;
- }
-
- freeaddrinfo(ai);
- return true;
-}
+ memcpy(&mesh->listen_socket[mesh->listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
+ memcpy(&mesh->listen_socket[mesh->listen_sockets].broadcast_sa, aip->ai_addr, aip->ai_addrlen);
-/*
- Configure node_t mesh->self and set up the local sockets (listen only)
-*/
-bool setup_myself(void) {
- char *name, *hostname, *cipher, *digest, *type;
- char *address = NULL;
- bool port_specified = false;
+ if(aip->ai_family == AF_INET6) {
+ mesh->listen_socket[mesh->listen_sockets].broadcast_sa.in6.sin6_addr.s6_addr[0x0] = 0xff;
+ mesh->listen_socket[mesh->listen_sockets].broadcast_sa.in6.sin6_addr.s6_addr[0x1] = 0x02;
+ mesh->listen_socket[mesh->listen_sockets].broadcast_sa.in6.sin6_addr.s6_addr[0xf] = 0x01;
+ } else {
+ mesh->listen_socket[mesh->listen_sockets].broadcast_sa.in.sin_addr.s_addr = 0xffffffff;
+ }
- if(!(name = get_name())) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Name for tinc daemon required!");
- return false;
+ mesh->listen_sockets++;
+ success = true;
}
- mesh->self = new_node();
- mesh->self->connection = new_connection();
- mesh->self->name = name;
- mesh->self->connection->name = xstrdup(name);
- read_host_config(mesh->config, name);
-
- if(!get_config_string(lookup_config(mesh->config, "Port"), &mesh->myport))
- mesh->myport = xstrdup("655");
- else
- port_specified = true;
-
- mesh->self->connection->options = 0;
- mesh->self->connection->protocol_major = PROT_MAJOR;
- mesh->self->connection->protocol_minor = PROT_MINOR;
-
- mesh->self->options |= PROT_MINOR << 24;
-
- if(!read_ecdsa_private_key())
- return false;
+ freeaddrinfo(ai);
- /* Ensure mesh->myport is numeric */
+ if(!success) {
+ for(int i = 0; i < mesh->listen_sockets; i++) {
+ io_del(&mesh->loop, &mesh->listen_socket[i].tcp);
+ io_del(&mesh->loop, &mesh->listen_socket[i].udp);
+ close(mesh->listen_socket[i].tcp.fd);
+ close(mesh->listen_socket[i].udp.fd);
+ }
- if(!atoi(mesh->myport)) {
- struct addrinfo *ai = str2addrinfo("localhost", mesh->myport, SOCK_DGRAM);
- sockaddr_t sa;
- if(!ai || !ai->ai_addr)
- return false;
- free(mesh->myport);
- memcpy(&sa, ai->ai_addr, ai->ai_addrlen);
- sockaddr2str(&sa, NULL, &mesh->myport);
+ mesh->listen_sockets = 0;
}
- /* Check some options */
-
- if(!setup_myself_reloadable())
- return false;
+ return success;
+}
- /* Compression */
+/*
+ Configure node_t mesh->self and set up the local sockets (listen only)
+*/
+bool setup_myself(meshlink_handle_t *mesh) {
+ /* Set some defaults */
- // TODO: drop compression in the packet layer?
- mesh->self->incompression = 0;
- mesh->self->connection->outcompression = 0;
+ mesh->maxtimeout = 900;
/* Done */
mesh->self->nexthop = mesh->self;
- mesh->self->via = mesh->self;
- mesh->self->status.reachable = true;
- mesh->self->last_state_change = now.tv_sec;
- node_add(mesh->self);
- graph();
+ node_add(mesh, mesh->self);
- if(autoconnect)
- load_all_nodes();
+ if(!config_scan_all(mesh, "current", "hosts", load_node, NULL)) {
+ logger(mesh, MESHLINK_WARNING, "Could not scan all host config files");
+ }
/* Open sockets */
- listen_sockets = 0;
- int cfgs = 0;
+ mesh->listen_sockets = 0;
- if(!add_listen_address(address, NULL))
- return false;
+ if(!add_listen_sockets(mesh)) {
+ if(strcmp(mesh->myport, "0")) {
+ logger(mesh, MESHLINK_WARNING, "Could not bind to port %s, trying to find an alternative port", mesh->myport);
- if(!listen_sockets) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Unable to create any listening socket!");
- return false;
- }
-
- // TODO: require Port to be set? Or use "0" and use getsockname()?
+ if(!check_port(mesh)) {
+ logger(mesh, MESHLINK_WARNING, "Could not bind to any port, trying to bind to port 0");
+ free(mesh->myport);
+ mesh->myport = xstrdup("0");
+ }
- if(!mesh->myport)
- mesh->myport = xstrdup("655");
+ if(!add_listen_sockets(mesh)) {
+ return false;
+ }
+ } else {
+ return false;
+ }
+ }
- xasprintf(&mesh->self->hostname, "MYSELF port %s", mesh->myport);
- mesh->self->connection->hostname = xstrdup(mesh->self->hostname);
+ if(!mesh->listen_sockets) {
+ logger(mesh, MESHLINK_ERROR, "Unable to create any listening socket!");
+ return false;
+ }
/* Done. */
- mesh->last_config_check = now.tv_sec;
+ mesh->last_config_check = mesh->loop.now.tv_sec;
+ mesh->last_unreachable = mesh->loop.now.tv_sec;
return true;
}
/*
initialize network
*/
-bool setup_network(void) {
- init_connections();
- init_nodes();
- init_edges();
- init_requests();
-
- pinginterval = 60;
- pingtimeout = 5;
- maxoutbufsize = 10 * MTU;
-
- if(!setup_myself())
+bool setup_network(meshlink_handle_t *mesh) {
+ init_connections(mesh);
+ init_submeshes(mesh);
+ init_nodes(mesh);
+ init_edges(mesh);
+ init_requests(mesh);
+
+ if(!setup_myself(mesh)) {
return false;
+ }
return true;
}
/*
close all open network connections
*/
-void close_network_connections(void) {
- for(list_node_t *node = mesh->connections->head, *next; node; node = next) {
- next = node->next;
- connection_t *c = node->data;
- c->outgoing = NULL;
- terminate_connection(c, false);
+void close_network_connections(meshlink_handle_t *mesh) {
+ if(mesh->connections) {
+ for(list_node_t *node = mesh->connections->head, *next; node; node = next) {
+ next = node->next;
+ connection_t *c = node->data;
+ c->outgoing = NULL;
+ terminate_connection(mesh, c, false);
+ }
}
- if(mesh->outgoings)
- list_delete_list(mesh->outgoings);
-
- if(mesh->self && mesh->self->connection) {
- terminate_connection(mesh->self->connection, false);
- free_connection(mesh->self->connection);
+ for(int i = 0; i < mesh->listen_sockets; i++) {
+ io_del(&mesh->loop, &mesh->listen_socket[i].tcp);
+ io_del(&mesh->loop, &mesh->listen_socket[i].udp);
+ close(mesh->listen_socket[i].tcp.fd);
+ close(mesh->listen_socket[i].udp.fd);
}
- for(int i = 0; i < listen_sockets; i++) {
- io_del(&listen_socket[i].tcp);
- io_del(&listen_socket[i].udp);
- close(listen_socket[i].tcp.fd);
- close(listen_socket[i].udp.fd);
- }
+ exit_requests(mesh);
+ exit_edges(mesh);
+ exit_nodes(mesh);
+ exit_submeshes(mesh);
+ exit_connections(mesh);
- exit_requests();
- exit_edges();
- exit_nodes();
- exit_connections();
+ free(mesh->myport);
+ mesh->myport = NULL;
- if(mesh->myport) free(mesh->myport);
+ mesh->self = NULL;
return;
}
projects / meshlink / blobdiff