#include "ecdsa.h"
#include "graph.h"
#include "logger.h"
+#include "meshlink_internal.h"
#include "net.h"
#include "netutl.h"
#include "protocol.h"
return true;
splay_tree_t *config_tree;
- FILE *fp;
- char *pubname = NULL;
char *p;
init_configuration(&config_tree);
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;
}
if(ecdsa_active(c->ecdsa))
return true;
- FILE *fp;
- char *fname;
char *p;
if(!c->config_tree) {
return c->ecdsa;
}
- /* Else, check for ECDSAPublicKeyFile statement and read it */
-
- if(!get_config_string(lookup_config(c->config_tree, "ECDSAPublicKeyFile"), &fname))
- xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, c->name);
-
- fp = fopen(fname, "r");
-
- if(!fp) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA public key file `%s': %s",
- fname, strerror(errno));
- free(fname);
- return false;
- }
-
- c->ecdsa = ecdsa_read_pem_public_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;
+ return false;
}
static bool read_ecdsa_private_key(void) {
FILE *fp;
char *fname;
- /* Check for PrivateKeyFile statement and read it */
-
- if(!get_config_string(lookup_config(config_tree, "ECDSAPrivateKeyFile"), &fname))
- xasprintf(&fname, "%s" SLASH "ecdsa_key.priv", confbase);
-
+ xasprintf(&fname, "%s" SLASH "ecdsa_key.priv", confbase);
fp = fopen(fname, "r");
+ free(fname);
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;
- }
-
-#if !defined(HAVE_MINGW) && !defined(HAVE_CYGWIN)
- struct stat s;
-
- if(fstat(fileno(fp), &s)) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not stat ECDSA private key file `%s': %s'", fname, strerror(errno));
- free(fname);
+ logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA private key file: %s", strerror(errno));
return false;
}
- if(s.st_mode & ~0100700)
- logger(DEBUG_ALWAYS, LOG_WARNING, "Warning: insecure file permissions for ECDSA private key file `%s'!", fname);
-#endif
-
- myself->connection->ecdsa = ecdsa_read_pem_private_key(fp);
+ mesh->self->connection->ecdsa = ecdsa_read_pem_private_key(fp);
fclose(fp);
- 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;
+ if(!mesh->self->connection->ecdsa)
+ logger(DEBUG_ALWAYS, LOG_ERR, "Reading ECDSA private key file failed: %s", strerror(errno));
+
+ return mesh->self->connection->ecdsa;
}
static bool read_invitation_key(void) {
if(!name)
return NULL;
- 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 = '_';
- }
-
if(!check_id(name)) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Invalid name for myself!");
+ logger(DEBUG_ALWAYS, LOG_ERR, "Invalid name for mesh->self!");
free(name);
- return false;
+ return NULL;
}
return name;
}
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;
-
- get_config_string(lookup_config(config_tree, "Proxy"), &proxy);
- if(proxy) {
- if((space = strchr(proxy, ' ')))
- *space++ = 0;
-
- 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;
- }
-
- switch(proxytype) {
- case PROXY_NONE:
- default:
- break;
-
- case PROXY_EXEC:
- if(!space || !*space) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Argument expected for proxy type exec!");
- return false;
- }
- proxyhost = xstrdup(space);
- break;
-
- 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;
- }
-
- free(proxy);
- }
-
- if(get_config_bool(lookup_config(config_tree, "IndirectData"), &choice) && choice)
- myself->options |= OPTION_INDIRECT;
-
- if(get_config_bool(lookup_config(config_tree, "TCPOnly"), &choice) && choice)
- myself->options |= OPTION_TCPONLY;
-
- if(myself->options & OPTION_TCPONLY)
- myself->options |= OPTION_INDIRECT;
-
- get_config_bool(lookup_config(config_tree, "DirectOnly"), &directonly);
- get_config_bool(lookup_config(config_tree, "LocalDiscovery"), &localdiscovery);
-
- 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);
- }
-
-
- 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 !defined(SOL_IP) || !defined(IP_TOS)
- if(priorityinheritance)
- logger(DEBUG_ALWAYS, LOG_WARNING, "%s not supported on this platform", "PriorityInheritance");
-#endif
-
- if(!get_config_int(lookup_config(config_tree, "MACExpire"), &macexpire))
- macexpire = 600;
-
- 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;
- }
- free(afname);
- }
-
- get_config_bool(lookup_config(config_tree, "Hostnames"), &hostnames);
-
- 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;
-
- get_config_bool(lookup_config(config_tree, "DisableBuggyPeers"), &disablebuggypeers);
+ localdiscovery = true;
+ keylifetime = 3600; // TODO: check if this can be removed as well
+ maxtimeout = 900;
+ autoconnect = 3;
+ mesh->self->options |= OPTION_PMTU_DISCOVERY;
read_invitation_key();
}
/*
- 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;
return false;
}
- myself = new_node();
- myself->connection = new_connection();
- myself->name = name;
- myself->connection->name = xstrdup(name);
+ mesh->self = new_node();
+ mesh->self->connection = new_connection();
+ mesh->self->name = name;
+ mesh->self->connection->name = xstrdup(name);
read_host_config(config_tree, name);
if(!get_config_string(lookup_config(config_tree, "Port"), &myport))
else
port_specified = true;
- myself->connection->options = 0;
- myself->connection->protocol_major = PROT_MAJOR;
- myself->connection->protocol_minor = PROT_MINOR;
+ mesh->self->connection->options = 0;
+ mesh->self->connection->protocol_major = PROT_MAJOR;
+ mesh->self->connection->protocol_minor = PROT_MINOR;
- myself->options |= PROT_MINOR << 24;
+ mesh->self->options |= PROT_MINOR << 24;
if(!read_ecdsa_private_key())
return false;
if(!setup_myself_reloadable())
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;
- }
-
+ // TODO: check whether this is used at all
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 = now.tv_sec;
+ node_add(mesh->self);
graph();
listen_sockets = 0;
int cfgs = 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;
- }
-
- 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(!cfgs)
- if(!add_listen_address(address, NULL))
- return false;
+ if(!add_listen_address(address, NULL))
+ 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. */
+ // TODO: require Port to be set? Or use "0" and use getsockname()?
- 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");
- }
- }
+ if(!myport)
+ myport = xstrdup("655");
- xasprintf(&myself->hostname, "MYSELF port %s", myport);
- myself->connection->hostname = xstrdup(myself->hostname);
+ xasprintf(&mesh->self->hostname, "MYSELF port %s", myport);
+ mesh->self->connection->hostname = xstrdup(mesh->self->hostname);
/* Done. */
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;
+ pinginterval = 60;
+ pingtimeout = 5;
+ maxoutbufsize = 10 * MTU;
if(!setup_myself())
return false;
close all open network connections
*/
void close_network_connections(void) {
- for(list_node_t *node = connection_list->head, *next; node; node = next) {
+ for(list_node_t *node = mesh->connections->head, *next; node; node = next) {
next = node->next;
connection_t *c = node->data;
c->outgoing = NULL;
if(outgoing_list)
list_delete_list(outgoing_list);
- if(myself && myself->connection) {
- terminate_connection(myself->connection, false);
- free_connection(myself->connection);
+ if(mesh->self && mesh->self->connection) {
+ terminate_connection(mesh->self->connection, false);
+ free_connection(mesh->self->connection);
}
for(int i = 0; i < listen_sockets; i++) {
projects / meshlink / blobdiff