/*
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 "protocol.h"
#include "route.h"
#include "utils.h"
#include "xalloc.h"
+#include "submesh.h"
-char *myport;
-
-char *proxyhost;
-char *proxyport;
-char *proxyuser;
-char *proxypass;
-proxytype_t proxytype;
-int autoconnect;
-bool disablebuggypeers;
-
-bool node_read_ecdsa_public_key(node_t *n) {
- if(ecdsa_active(n->ecdsa))
+bool node_read_ecdsa_public_key(meshlink_handle_t *mesh, node_t *n) {
+ if(ecdsa_active(n->ecdsa)) {
return true;
+ }
splay_tree_t *config_tree;
- FILE *fp;
- char *pubname = NULL;
char *p;
init_configuration(&config_tree);
- if(!read_host_config(config_tree, n->name))
+
+ if(!read_host_config(mesh, config_tree, n->name)) {
goto exit;
+ }
/* First, check for simple ECDSAPublicKey statement */
if(get_config_string(lookup_config(config_tree, "ECDSAPublicKey"), &p)) {
n->ecdsa = ecdsa_set_base64_public_key(p);
free(p);
- goto exit;
}
- /* Else, check for ECDSAPublicKeyFile statement and read it */
-
- if(!get_config_string(lookup_config(config_tree, "ECDSAPublicKeyFile"), &pubname))
- xasprintf(&pubname, "%s" SLASH "hosts" SLASH "%s", confbase, n->name);
-
- fp = fopen(pubname, "r");
-
- if(!fp)
- goto exit;
-
- n->ecdsa = ecdsa_read_pem_public_key(fp);
- fclose(fp);
-
exit:
exit_configuration(&config_tree);
- free(pubname);
return n->ecdsa;
}
-bool read_ecdsa_public_key(connection_t *c) {
- if(ecdsa_active(c->ecdsa))
+bool read_ecdsa_public_key(meshlink_handle_t *mesh, connection_t *c) {
+ if(ecdsa_active(c->ecdsa)) {
return true;
+ }
- FILE *fp;
- char *fname;
char *p;
if(!c->config_tree) {
init_configuration(&c->config_tree);
- if(!read_host_config(c->config_tree, c->name))
+
+ if(!read_host_config(mesh, c->config_tree, c->name)) {
return false;
+ }
}
/* First, check for simple ECDSAPublicKey statement */
return c->ecdsa;
}
- /* Else, check for ECDSAPublicKeyFile statement and read it */
+ return false;
+}
- if(!get_config_string(lookup_config(c->config_tree, "ECDSAPublicKeyFile"), &fname))
- xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, c->name);
+bool read_ecdsa_private_key(meshlink_handle_t *mesh) {
+ FILE *fp;
+ char filename[PATH_MAX];
- fp = fopen(fname, "r");
+ snprintf(filename, PATH_MAX, "%s" SLASH "ecdsa_key.priv", mesh->confbase);
+ fp = fopen(filename, "rb");
if(!fp) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA public key file `%s': %s",
- fname, strerror(errno));
- free(fname);
+ logger(mesh, MESHLINK_ERROR, "Error reading ECDSA private key file: %s", strerror(errno));
return false;
}
- c->ecdsa = ecdsa_read_pem_public_key(fp);
+ mesh->self->connection->ecdsa = ecdsa_read_pem_private_key(fp);
fclose(fp);
- if(!c->ecdsa)
- logger(DEBUG_ALWAYS, LOG_ERR, "Parsing ECDSA public key file `%s' failed.", fname);
- free(fname);
- return c->ecdsa;
+ if(!mesh->self->connection->ecdsa) {
+ logger(mesh, MESHLINK_ERROR, "Reading ECDSA private key file failed: %s", strerror(errno));
+ }
+
+ return mesh->self->connection->ecdsa;
}
-static bool read_ecdsa_private_key(void) {
+static bool read_invitation_key(meshlink_handle_t *mesh) {
FILE *fp;
- char *fname;
-
- /* Check for PrivateKeyFile statement and read it */
+ char filename[PATH_MAX];
- if(!get_config_string(lookup_config(config_tree, "ECDSAPrivateKeyFile"), &fname))
- xasprintf(&fname, "%s" SLASH "ecdsa_key.priv", confbase);
+ if(mesh->invitation_key) {
+ ecdsa_free(mesh->invitation_key);
+ mesh->invitation_key = NULL;
+ }
- fp = fopen(fname, "r");
+ snprintf(filename, PATH_MAX, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", mesh->confbase);
- if(!fp) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA private key file `%s': %s", fname, strerror(errno));
- if(errno == ENOENT)
- logger(DEBUG_ALWAYS, LOG_INFO, "Create an ECDSA keypair with `tinc generate-ecdsa-keys'.");
- free(fname);
- return false;
- }
+ fp = fopen(filename, "rb");
-#if !defined(HAVE_MINGW) && !defined(HAVE_CYGWIN)
- struct stat s;
+ if(fp) {
+ mesh->invitation_key = ecdsa_read_pem_private_key(fp);
+ fclose(fp);
- if(fstat(fileno(fp), &s)) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not stat ECDSA private key file `%s': %s'", fname, strerror(errno));
- free(fname);
- return false;
+ if(!mesh->invitation_key) {
+ logger(mesh, MESHLINK_ERROR, "Reading ECDSA private key file `%s' failed: %s", filename, strerror(errno));
+ }
}
- if(s.st_mode & ~0100700)
- logger(DEBUG_ALWAYS, LOG_WARNING, "Warning: insecure file permissions for ECDSA private key file `%s'!", fname);
-#endif
+ return mesh->invitation_key;
+}
- myself->connection->ecdsa = ecdsa_read_pem_private_key(fp);
- fclose(fp);
+bool node_read_devclass(meshlink_handle_t *mesh, node_t *n) {
- if(!myself->connection->ecdsa)
- logger(DEBUG_ALWAYS, LOG_ERR, "Reading ECDSA private key file `%s' failed: %s", fname, strerror(errno));
- free(fname);
- return myself->connection->ecdsa;
-}
+ splay_tree_t *config_tree;
+ char *p;
-static bool read_invitation_key(void) {
- FILE *fp;
- char *fname;
+ init_configuration(&config_tree);
- if(invitation_key) {
- ecdsa_free(invitation_key);
- invitation_key = NULL;
+ if(!read_host_config(mesh, config_tree, n->name)) {
+ goto exit;
}
- xasprintf(&fname, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", confbase);
-
- fp = fopen(fname, "r");
+ if(get_config_string(lookup_config(config_tree, "DeviceClass"), &p)) {
+ n->devclass = atoi(p);
+ free(p);
+ }
- 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((int)n->devclass < 0 || n->devclass > _DEV_CLASS_MAX) {
+ n->devclass = _DEV_CLASS_MAX;
}
- free(fname);
- return invitation_key;
+exit:
+ exit_configuration(&config_tree);
+ return n->devclass != 0;
}
-static timeout_t keyexpire_timeout;
+bool node_read_submesh(meshlink_handle_t *mesh, node_t *n) {
-static void keyexpire_handler(void *data) {
- regenerate_key();
- timeout_set(data, &(struct timeval){keylifetime, rand() % 100000});
-}
-
-void regenerate_key(void) {
- logger(DEBUG_STATUS, LOG_INFO, "Expiring symmetric keys");
- send_key_changed();
-}
+ splay_tree_t *config_tree;
+ char *p;
-void load_all_nodes(void) {
- DIR *dir;
- struct dirent *ent;
- char *dname;
+ init_configuration(&config_tree);
- xasprintf(&dname, "%s" SLASH "hosts", confbase);
- dir = opendir(dname);
- if(!dir) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not open %s: %s", dname, strerror(errno));
- free(dname);
- return;
+ if(!read_host_config(mesh, config_tree, n->name)) {
+ goto exit;
}
- while((ent = readdir(dir))) {
- if(!check_id(ent->d_name))
- continue;
+ if(get_config_string(lookup_config(config_tree, "SubMesh"), &p)) {
+ n->submesh = NULL;
- node_t *n = lookup_node(ent->d_name);
- if(n)
- continue;
+ for list_each(submesh_t, s, mesh->submeshes) {
+ if(!strcmp(p, s->name)) {
+ n->submesh = s;
+ break;
+ }
+ }
- n = new_node();
- n->name = xstrdup(ent->d_name);
- node_add(n);
+ if(!n->submesh) {
+ n->submesh = (submesh_t *)meshlink_submesh_open(mesh, p);
+ }
+
+ free(p);
}
- closedir(dir);
+exit:
+ exit_configuration(&config_tree);
+ return n->submesh != NULL;
}
+bool node_write_devclass(meshlink_handle_t *mesh, node_t *n) {
-char *get_name(void) {
- char *name = NULL;
+ if((int)n->devclass < 0 || n->devclass > _DEV_CLASS_MAX) {
+ return false;
+ }
- get_config_string(lookup_config(config_tree, "Name"), &name);
+ bool result = false;
- if(!name)
- return NULL;
+ splay_tree_t *config_tree;
+ init_configuration(&config_tree);
- if(*name == '$') {
- char *envname = getenv(name + 1);
- char hostname[32] = "";
- if(!envname) {
- if(strcmp(name + 1, "HOST")) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid Name: environment variable %s does not exist\n", name + 1);
- return false;
- }
- if(gethostname(hostname, sizeof hostname) || !*hostname) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not get hostname: %s\n", strerror(errno));
- return false;
- }
- hostname[31] = 0;
- envname = hostname;
- }
- free(name);
- name = xstrdup(envname);
- for(char *c = name; *c; c++)
- if(!isalnum(*c))
- *c = '_';
+ // ignore read errors; in case the file does not exist we will create it
+ read_host_config(mesh, config_tree, n->name);
+
+ config_t *cnf = lookup_config(config_tree, "DeviceClass");
+
+ if(!cnf) {
+ cnf = new_config();
+ cnf->variable = xstrdup("DeviceClass");
+ config_add(config_tree, cnf);
}
- if(!check_id(name)) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid name for myself!");
- free(name);
- return false;
+ set_config_int(cnf, n->devclass);
+
+ if(!write_host_config(mesh, config_tree, n->name)) {
+ goto fail;
}
- return name;
+ result = true;
+
+fail:
+ exit_configuration(&config_tree);
+ return result;
}
-bool setup_myself_reloadable(void) {
- char *proxy = NULL;
- char *rmode = NULL;
- char *fmode = NULL;
- char *bmode = NULL;
- char *afname = NULL;
- char *address = NULL;
- char *space;
- bool choice;
+bool node_write_submesh(meshlink_handle_t *mesh, node_t *n) {
- get_config_string(lookup_config(config_tree, "Proxy"), &proxy);
- if(proxy) {
- if((space = strchr(proxy, ' ')))
- *space++ = 0;
+ if(!n->submesh) {
+ return false;
+ }
- if(!strcasecmp(proxy, "none")) {
- proxytype = PROXY_NONE;
- } else if(!strcasecmp(proxy, "socks4")) {
- proxytype = PROXY_SOCKS4;
- } else if(!strcasecmp(proxy, "socks4a")) {
- proxytype = PROXY_SOCKS4A;
- } else if(!strcasecmp(proxy, "socks5")) {
- proxytype = PROXY_SOCKS5;
- } else if(!strcasecmp(proxy, "http")) {
- proxytype = PROXY_HTTP;
- } else if(!strcasecmp(proxy, "exec")) {
- proxytype = PROXY_EXEC;
- } else {
- logger(DEBUG_ALWAYS, LOG_ERR, "Unknown proxy type %s!", proxy);
- return false;
- }
+ bool result = false;
- switch(proxytype) {
- case PROXY_NONE:
- default:
- break;
+ splay_tree_t *config_tree;
+ init_configuration(&config_tree);
- case PROXY_EXEC:
- if(!space || !*space) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Argument expected for proxy type exec!");
- return false;
- }
- proxyhost = xstrdup(space);
- break;
+ // ignore read errors; in case the file does not exist we will create it
+ read_host_config(mesh, config_tree, n->name);
- case PROXY_SOCKS4:
- case PROXY_SOCKS4A:
- case PROXY_SOCKS5:
- case PROXY_HTTP:
- proxyhost = space;
- if(space && (space = strchr(space, ' ')))
- *space++ = 0, proxyport = space;
- if(space && (space = strchr(space, ' ')))
- *space++ = 0, proxyuser = space;
- if(space && (space = strchr(space, ' ')))
- *space++ = 0, proxypass = space;
- if(!proxyhost || !*proxyhost || !proxyport || !*proxyport) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Host and port argument expected for proxy!");
- return false;
- }
- proxyhost = xstrdup(proxyhost);
- proxyport = xstrdup(proxyport);
- if(proxyuser && *proxyuser)
- proxyuser = xstrdup(proxyuser);
- if(proxypass && *proxypass)
- proxypass = xstrdup(proxypass);
- break;
- }
+ config_t *cnf = lookup_config(config_tree, "SubMesh");
- free(proxy);
+ if(!cnf) {
+ cnf = new_config();
+ cnf->variable = xstrdup("SubMesh");
+ config_add(config_tree, cnf);
}
- if(get_config_bool(lookup_config(config_tree, "IndirectData"), &choice) && choice)
- myself->options |= OPTION_INDIRECT;
+ set_config_string(cnf, n->submesh->name);
- if(get_config_bool(lookup_config(config_tree, "TCPOnly"), &choice) && choice)
- myself->options |= OPTION_TCPONLY;
+ if(!write_host_config(mesh, config_tree, n->name)) {
+ goto fail;
+ }
- if(myself->options & OPTION_TCPONLY)
- myself->options |= OPTION_INDIRECT;
+ result = true;
- get_config_bool(lookup_config(config_tree, "DirectOnly"), &directonly);
- get_config_bool(lookup_config(config_tree, "LocalDiscovery"), &localdiscovery);
+fail:
+ exit_configuration(&config_tree);
+ return result;
+}
- memset(&localdiscovery_address, 0, sizeof localdiscovery_address);
- if(get_config_string(lookup_config(config_tree, "LocalDiscoveryAddress"), &address)) {
- struct addrinfo *ai = str2addrinfo(address, myport, SOCK_DGRAM);
- free(address);
- if(!ai)
- return false;
- memcpy(&localdiscovery_address, ai->ai_addr, ai->ai_addrlen);
- }
+void load_all_nodes(meshlink_handle_t *mesh) {
+ DIR *dir;
+ struct dirent *ent;
+ char dname[PATH_MAX];
+ snprintf(dname, PATH_MAX, "%s" SLASH "hosts", mesh->confbase);
+ dir = opendir(dname);
- if(get_config_string(lookup_config(config_tree, "Mode"), &rmode)) {
- if(!strcasecmp(rmode, "router"))
- routing_mode = RMODE_ROUTER;
- else if(!strcasecmp(rmode, "switch"))
- routing_mode = RMODE_SWITCH;
- else if(!strcasecmp(rmode, "hub"))
- routing_mode = RMODE_HUB;
- else {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid routing mode!");
- return false;
- }
- free(rmode);
- }
-
- if(get_config_string(lookup_config(config_tree, "Forwarding"), &fmode)) {
- if(!strcasecmp(fmode, "off"))
- forwarding_mode = FMODE_OFF;
- else if(!strcasecmp(fmode, "internal"))
- forwarding_mode = FMODE_INTERNAL;
- else if(!strcasecmp(fmode, "kernel"))
- forwarding_mode = FMODE_KERNEL;
- else {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid forwarding mode!");
- return false;
- }
- free(fmode);
- }
-
- choice = true;
- get_config_bool(lookup_config(config_tree, "PMTUDiscovery"), &choice);
- if(choice)
- myself->options |= OPTION_PMTU_DISCOVERY;
-
- choice = true;
- get_config_bool(lookup_config(config_tree, "ClampMSS"), &choice);
- if(choice)
- myself->options |= OPTION_CLAMP_MSS;
-
- get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance);
- get_config_bool(lookup_config(config_tree, "DecrementTTL"), &decrement_ttl);
- if(get_config_string(lookup_config(config_tree, "Broadcast"), &bmode)) {
- if(!strcasecmp(bmode, "no"))
- broadcast_mode = BMODE_NONE;
- else if(!strcasecmp(bmode, "yes") || !strcasecmp(bmode, "mst"))
- broadcast_mode = BMODE_MST;
- else if(!strcasecmp(bmode, "direct"))
- broadcast_mode = BMODE_DIRECT;
- else {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid broadcast mode!");
- return false;
- }
- free(bmode);
+ if(!dir) {
+ logger(mesh, MESHLINK_ERROR, "Could not open %s: %s", dname, strerror(errno));
+ return;
}
-#if !defined(SOL_IP) || !defined(IP_TOS)
- if(priorityinheritance)
- logger(DEBUG_ALWAYS, LOG_WARNING, "%s not supported on this platform", "PriorityInheritance");
-#endif
+ while((ent = readdir(dir))) {
+ if(!check_id(ent->d_name)) {
+ continue;
+ }
- if(!get_config_int(lookup_config(config_tree, "MACExpire"), &macexpire))
- macexpire = 600;
+ node_t *n = lookup_node(mesh, ent->d_name);
- if(get_config_int(lookup_config(config_tree, "MaxTimeout"), &maxtimeout)) {
- if(maxtimeout <= 0) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Bogus maximum timeout!");
- return false;
- }
- } else
- maxtimeout = 900;
-
- if(get_config_string(lookup_config(config_tree, "AddressFamily"), &afname)) {
- if(!strcasecmp(afname, "IPv4"))
- addressfamily = AF_INET;
- else if(!strcasecmp(afname, "IPv6"))
- addressfamily = AF_INET6;
- else if(!strcasecmp(afname, "any"))
- addressfamily = AF_UNSPEC;
- else {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid address family!");
- return false;
+ if(n) {
+ if(n == mesh->self && !n->submesh) {
+ node_read_submesh(mesh, n);
+ }
+
+ continue;
}
- free(afname);
+
+ n = new_node();
+ n->name = xstrdup(ent->d_name);
+ node_read_devclass(mesh, n);
+ node_read_submesh(mesh, n);
+ node_add(mesh, n);
}
- get_config_bool(lookup_config(config_tree, "Hostnames"), &hostnames);
+ closedir(dir);
+}
- if(!get_config_int(lookup_config(config_tree, "KeyExpire"), &keylifetime))
- keylifetime = 3600;
- get_config_int(lookup_config(config_tree, "AutoConnect"), &autoconnect);
- if(autoconnect < 0)
- autoconnect = 0;
+char *get_name(meshlink_handle_t *mesh) {
+ char *name = NULL;
- get_config_bool(lookup_config(config_tree, "DisableBuggyPeers"), &disablebuggypeers);
+ get_config_string(lookup_config(mesh->config, "Name"), &name);
- read_invitation_key();
+ if(!name) {
+ return NULL;
+ }
+
+ if(!check_id(name)) {
+ logger(mesh, MESHLINK_ERROR, "Invalid name for mesh->self!");
+ free(name);
+ return NULL;
+ }
+
+ return name;
+}
+
+bool setup_myself_reloadable(meshlink_handle_t *mesh) {
+ mesh->localdiscovery = true;
+ keylifetime = 3600; // TODO: check if this can be removed as well
+ mesh->maxtimeout = 900;
+ mesh->self->options |= OPTION_PMTU_DISCOVERY;
+
+ read_invitation_key(mesh);
return true;
}
/*
Add listening sockets.
*/
-static bool add_listen_address(char *address, bool bindto) {
- char *port = myport;
+static bool add_listen_address(meshlink_handle_t *mesh, char *address, bool bindto) {
+ char *port = mesh->myport;
if(address) {
char *space = strchr(address, ' ');
+
if(space) {
*space++ = 0;
port = space;
}
- if(!strcmp(address, "*"))
+ if(!strcmp(address, "*")) {
*address = 0;
+ }
}
- 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 *ai;
+
+ struct addrinfo hint = {
+ .ai_family = addressfamily,
+ .ai_socktype = SOCK_STREAM,
+ .ai_protocol = IPPROTO_TCP,
+ .ai_flags = AI_PASSIVE,
+ };
int err = getaddrinfo(address && *address ? address : NULL, port, &hint, &ai);
+
free(address);
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);
- if(tcp_fd < 0)
+ if(tcp_fd < 0) {
continue;
+ }
- int udp_fd = setup_vpn_in_socket((sockaddr_t *) aip->ai_addr);
+ int udp_fd = setup_vpn_in_socket(mesh, (sockaddr_t *) aip->ai_addr);
- if(tcp_fd < 0) {
+ if(udp_fd < 0) {
close(tcp_fd);
continue;
}
- 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++;
+ mesh->listen_socket[mesh->listen_sockets].bindto = bindto;
+ memcpy(&mesh->listen_socket[mesh->listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
+ mesh->listen_sockets++;
+ success = true;
}
freeaddrinfo(ai);
- return true;
+ return success;
}
/*
- Configure node_t myself and set up the local sockets (listen only)
+ Configure node_t mesh->self and set up the local sockets (listen only)
*/
-bool setup_myself(void) {
- char *name, *hostname, *cipher, *digest, *type;
+bool setup_myself(meshlink_handle_t *mesh) {
+ char *name;
char *address = NULL;
- bool port_specified = false;
- if(!(name = get_name())) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Name for tinc daemon required!");
+ if(!(name = get_name(mesh))) {
+ logger(mesh, MESHLINK_ERROR, "Name for MeshLink instance required!");
return false;
}
- myself = new_node();
- myself->connection = new_connection();
- myself->name = name;
- myself->connection->name = xstrdup(name);
- read_host_config(config_tree, name);
+ mesh->self = new_node();
+ mesh->self->connection = new_connection();
+ mesh->self->name = name;
+ mesh->self->devclass = mesh->devclass;
+ mesh->self->connection->name = xstrdup(name);
+ read_host_config(mesh, mesh->config, name);
- if(!get_config_string(lookup_config(config_tree, "Port"), &myport))
- myport = xstrdup("655");
- else
- port_specified = true;
+ if(!get_config_string(lookup_config(mesh->config, "Port"), &mesh->myport)) {
+ int port = check_port(mesh);
- myself->connection->options = 0;
- myself->connection->protocol_major = PROT_MAJOR;
- myself->connection->protocol_minor = PROT_MINOR;
+ if(port == 0) {
+ return false;
+ }
- myself->options |= PROT_MINOR << 24;
+ xasprintf(&mesh->myport, "%d", port);
+ }
+
+ 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())
+ if(!read_ecdsa_private_key(mesh)) {
return false;
+ }
- /* Ensure myport is numeric */
+ /* Ensure mesh->myport is numeric */
- if(!atoi(myport)) {
- struct addrinfo *ai = str2addrinfo("localhost", myport, SOCK_DGRAM);
+ if(!atoi(mesh->myport)) {
+ struct addrinfo *ai = str2addrinfo("localhost", mesh->myport, SOCK_DGRAM);
sockaddr_t sa;
- if(!ai || !ai->ai_addr)
+
+ if(!ai || !ai->ai_addr) {
return false;
- free(myport);
+ }
+
+ free(mesh->myport);
memcpy(&sa, ai->ai_addr, ai->ai_addrlen);
- sockaddr2str(&sa, NULL, &myport);
+ sockaddr2str(&sa, NULL, &mesh->myport);
}
/* Check some options */
- if(!setup_myself_reloadable())
+ if(!setup_myself_reloadable(mesh)) {
return false;
-
- if(get_config_int(lookup_config(config_tree, "MaxConnectionBurst"), &max_connection_burst)) {
- if(max_connection_burst <= 0) {
- logger(DEBUG_ALWAYS, LOG_ERR, "MaxConnectionBurst cannot be negative!");
- return false;
- }
}
- int replaywin_int;
- if(get_config_int(lookup_config(config_tree, "ReplayWindow"), &replaywin_int)) {
- if(replaywin_int < 0) {
- logger(DEBUG_ALWAYS, LOG_ERR, "ReplayWindow cannot be negative!");
- return false;
- }
- replaywin = (unsigned)replaywin_int;
- sptps_replaywin = replaywin;
- }
-
- timeout_add(&keyexpire_timeout, keyexpire_handler, &keyexpire_timeout, &(struct timeval){keylifetime, rand() % 100000});
-
/* Compression */
- if(get_config_int(lookup_config(config_tree, "Compression"), &myself->incompression)) {
- if(myself->incompression < 0 || myself->incompression > 11) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Bogus compression level!");
- return false;
- }
- } else
- myself->incompression = 0;
-
- myself->connection->outcompression = 0;
+ // TODO: drop compression in the packet layer?
+ mesh->self->incompression = 0;
+ mesh->self->connection->outcompression = 0;
/* Done */
- myself->nexthop = myself;
- myself->via = myself;
- myself->status.reachable = true;
- myself->last_state_change = now.tv_sec;
- node_add(myself);
+ mesh->self->nexthop = mesh->self;
+ mesh->self->via = mesh->self;
+ mesh->self->status.reachable = true;
+ mesh->self->last_state_change = mesh->loop.now.tv_sec;
+
+ node_write_devclass(mesh, mesh->self);
+ node_add(mesh, mesh->self);
- graph();
+ graph(mesh);
- if(autoconnect)
- load_all_nodes();
+ load_all_nodes(mesh);
/* Open sockets */
- listen_sockets = 0;
- int cfgs = 0;
+ mesh->listen_sockets = 0;
- for(config_t *cfg = lookup_config(config_tree, "BindToAddress"); cfg; cfg = lookup_config_next(config_tree, cfg)) {
- cfgs++;
- get_config_string(cfg, &address);
- if(!add_listen_address(address, true))
- return false;
- }
+ if(!add_listen_address(mesh, address, NULL)) {
+ if(strcmp(mesh->myport, "0")) {
+ logger(mesh, MESHLINK_INFO, "Could not bind to port %s, asking OS to choose one for us", mesh->myport);
+ free(mesh->myport);
+ mesh->myport = strdup("0");
- for(config_t *cfg = lookup_config(config_tree, "ListenAddress"); cfg; cfg = lookup_config_next(config_tree, cfg)) {
- cfgs++;
- get_config_string(cfg, &address);
- if(!add_listen_address(address, false))
- return false;
- }
+ if(!mesh->myport) {
+ return false;
+ }
- if(!cfgs)
- if(!add_listen_address(address, NULL))
+ if(!add_listen_address(mesh, address, NULL)) {
+ return false;
+ }
+ } else {
return false;
-
- if(!listen_sockets) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Unable to create any listening socket!");
- return false;
- }
-
- /* If no Port option was specified, set myport to the port used by the first listening socket. */
-
- if(!port_specified) {
- sockaddr_t sa;
- socklen_t salen = sizeof sa;
- if(!getsockname(listen_socket[0].udp.fd, &sa.sa, &salen)) {
- free(myport);
- sockaddr2str(&sa, NULL, &myport);
- if(!myport)
- myport = xstrdup("655");
}
}
- xasprintf(&myself->hostname, "MYSELF port %s", myport);
- myself->connection->hostname = xstrdup(myself->hostname);
+ if(!mesh->listen_sockets) {
+ logger(mesh, MESHLINK_ERROR, "Unable to create any listening socket!");
+ return false;
+ }
/* Done. */
- last_config_check = now.tv_sec;
+ mesh->last_config_check = mesh->loop.now.tv_sec;
return true;
}
/*
initialize network
*/
-bool setup_network(void) {
- init_connections();
- init_nodes();
- init_edges();
- init_requests();
-
- if(get_config_int(lookup_config(config_tree, "PingInterval"), &pinginterval)) {
- if(pinginterval < 1) {
- pinginterval = 86400;
- }
- } else
- pinginterval = 60;
-
- if(!get_config_int(lookup_config(config_tree, "PingTimeout"), &pingtimeout))
- pingtimeout = 5;
- if(pingtimeout < 1 || pingtimeout > pinginterval)
- pingtimeout = pinginterval;
-
- if(!get_config_int(lookup_config(config_tree, "MaxOutputBufferSize"), &maxoutbufsize))
- 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);
+
+ mesh->pinginterval = 60;
+ mesh->pingtimeout = 5;
+ maxoutbufsize = 10 * MTU;
+
+ if(!setup_myself(mesh)) {
return false;
+ }
return true;
}
/*
close all open network connections
*/
-void close_network_connections(void) {
- for(list_node_t *node = connection_list->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(outgoing_list)
- list_delete_list(outgoing_list);
+ if(mesh->outgoings) {
+ list_delete_list(mesh->outgoings);
+ }
- if(myself && myself->connection) {
- terminate_connection(myself->connection, false);
- free_connection(myself->connection);
+ if(mesh->self && mesh->self->connection) {
+ terminate_connection(mesh, mesh->self->connection, false);
+ free_connection(mesh->self->connection);
}
- 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);
+ 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);
}
- exit_requests();
- exit_edges();
- exit_nodes();
- exit_connections();
+ exit_requests(mesh);
+ exit_edges(mesh);
+ exit_nodes(mesh);
+ exit_connections(mesh);
- if(myport) free(myport);
+ if(mesh->myport) {
+ free(mesh->myport);
+ }
return;
}
projects / meshlink / blobdiff