Merge branch 'master' into 1.1

[meshlink] / src / net_setup.c

diff --git a/src/net_setup.c b/src/net_setup.c
index 033bf3761eb773bd728e4827cf30de6ec72de723..623eb1856692507628971263529110e5ff244cc4 100644 (file)
--- a/src/net_setup.c
+++ b/src/net_setup.c
@@ -1,7 +1,7 @@
 /*
     net_setup.c -- Setup.
     Copyright (C) 1998-2005 Ivo Timmermans,
-                  2000-2006 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2009 Guus Sliepen <guus@tinc-vpn.org>
 
     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
@@ -108,7 +108,7 @@ bool read_rsa_private_key() {
        /* Else, check for PrivateKeyFile statement and read it */
 
        if(!get_config_string(lookup_config(config_tree, "PrivateKeyFile"), &fname))
-               asprintf(&fname, "%s/rsa_key.priv", confbase);
+               xasprintf(&fname, "%s/rsa_key.priv", confbase);
 
        fp = fopen(fname, "r");
 
@@ -148,14 +148,8 @@ static void keyexpire_handler(int fd, short events, void *data) {
 }
 
 void regenerate_key() {
-       ifdebug(STATUS) logger(LOG_INFO, _("Regenerating symmetric key"));
-
-       if(!cipher_regenerate_key(&myself->cipher, true)) {
-               logger(LOG_ERR, _("Error regenerating key!"));
-               abort();
-       }
-
        if(timeout_initialized(&keyexpire_event)) {
+               ifdebug(STATUS) logger(LOG_INFO, _("Expiring symmetric keys"));
                event_del(&keyexpire_event);
                send_key_changed(broadcast, myself);
        } else {
@@ -184,8 +178,8 @@ bool setup_myself(void) {
        myself->connection = new_connection();
        init_configuration(&myself->connection->config_tree);
 
-       asprintf(&myself->hostname, _("MYSELF"));
-       asprintf(&myself->connection->hostname, _("MYSELF"));
+       xasprintf(&myself->hostname, _("MYSELF"));
+       xasprintf(&myself->connection->hostname, _("MYSELF"));
 
        myself->connection->options = 0;
        myself->connection->protocol_version = PROT_CURRENT;
@@ -213,7 +207,7 @@ bool setup_myself(void) {
                return false;
 
        if(!get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport))
-               asprintf(&myport, "655");
+               xasprintf(&myport, "655");
 
        /* Read in all the subnets specified in the host configuration file */
 
@@ -242,9 +236,6 @@ bool setup_myself(void) {
        if(get_config_bool(lookup_config(myself->connection->config_tree, "TCPOnly"), &choice) && choice)
                myself->options |= OPTION_TCPONLY;
 
-       if(get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice)
-               myself->options |= OPTION_PMTU_DISCOVERY;
-
        if(myself->options & OPTION_TCPONLY)
                myself->options |= OPTION_INDIRECT;
 
@@ -265,11 +256,18 @@ bool setup_myself(void) {
        } else
                routing_mode = RMODE_ROUTER;
 
+       // Enable PMTUDiscovery by default if we are in router mode.
+
+       choice = routing_mode == RMODE_ROUTER;
+       get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice);
+       if(choice)      
+               myself->options |= OPTION_PMTU_DISCOVERY;
+
        get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance);
 
 #if !defined(SOL_IP) || !defined(IP_TOS)
        if(priorityinheritance)
-               logger(LOG_WARNING, _("PriorityInheritance not supported on this platform"));
+               logger(LOG_WARNING, _("%s not supported on this platform"), "PriorityInheritance");
 #endif
 
        if(!get_config_int(lookup_config(config_tree, "MACExpire"), &macexpire))
@@ -302,9 +300,9 @@ bool setup_myself(void) {
        /* Generate packet encryption key */
 
        if(!get_config_string(lookup_config(myself->connection->config_tree, "Cipher"), &cipher))
-               cipher = xstrdup("blowfish");
+               cipher = xstrdup("aes256");
 
-       if(!cipher_open_by_name(&myself->cipher, cipher)) {
+       if(!cipher_open_by_name(&myself->incipher, cipher)) {
                logger(LOG_ERR, _("Unrecognized cipher type!"));
                return false;
        }
@@ -317,34 +315,30 @@ bool setup_myself(void) {
        /* Check if we want to use message authentication codes... */
 
        if(!get_config_string(lookup_config(myself->connection->config_tree, "Digest"), &digest))
-               digest = xstrdup("sha1");
+               digest = xstrdup("sha256");
 
-       if(!digest_open_by_name(&myself->digest, digest)) {
-               logger(LOG_ERR, _("Unrecognized digest type!"));
+       int maclength = 4;
+       get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &maclength);
+
+       if(maclength < 0) {
+               logger(LOG_ERR, _("Bogus MAC length!"));
                return false;
        }
 
-       if(!get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &myself->maclength))
-
-       if(digest_active(&myself->digest)) {
-               if(myself->maclength > digest_length(&myself->digest)) {
-                       logger(LOG_ERR, _("MAC length exceeds size of digest!"));
-                       return false;
-               } else if(myself->maclength < 0) {
-                       logger(LOG_ERR, _("Bogus MAC length!"));
-                       return false;
-               }
+       if(!digest_open_by_name(&myself->indigest, digest, maclength)) {
+               logger(LOG_ERR, _("Unrecognized digest type!"));
+               return false;
        }
 
        /* Compression */
 
-       if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"), &myself->compression)) {
-               if(myself->compression < 0 || myself->compression > 11) {
+       if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"), &myself->incompression)) {
+               if(myself->incompression < 0 || myself->incompression > 11) {
                        logger(LOG_ERR, _("Bogus compression level!"));
                        return false;
                }
        } else
-               myself->compression = 0;
+               myself->incompression = 0;
 
        myself->connection->outcompression = 0;
 
@@ -371,10 +365,10 @@ bool setup_myself(void) {
        }
 
        /* Run tinc-up script to further initialize the tap interface */
-       asprintf(&envp[0], "NETNAME=%s", netname ? : "");
-       asprintf(&envp[1], "DEVICE=%s", device ? : "");
-       asprintf(&envp[2], "INTERFACE=%s", iface ? : "");
-       asprintf(&envp[3], "NAME=%s", myself->name);
+       xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
+       xasprintf(&envp[1], "DEVICE=%s", device ? : "");
+       xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
+       xasprintf(&envp[3], "NAME=%s", myself->name);
        envp[4] = NULL;
 
        execute_script("tinc-up", envp);
@@ -466,9 +460,10 @@ bool setup_myself(void) {
 }
 
 /*
-  setup all initial network connections
+  initialize network
 */
-bool setup_network_connections(void) {
+bool setup_network(void)
+{
        cp();
 
        init_connections();
@@ -490,13 +485,11 @@ bool setup_network_connections(void) {
                pingtimeout = pinginterval;
 
        if(!get_config_int(lookup_config(config_tree, "MaxOutputBufferSize"), &maxoutbufsize))
-               maxoutbufsize = 4 * MTU;
+               maxoutbufsize = 10 * MTU;
 
        if(!setup_myself())
                return false;
 
-       try_outgoing_connections();
-
        return true;
 }
 
@@ -514,21 +507,16 @@ void close_network_connections(void) {
        for(node = connection_tree->head; node; node = next) {
                next = node->next;
                c = node->data;
-
-               if(c->outgoing) {
-                       if(c->outgoing->ai)
-                               freeaddrinfo(c->outgoing->ai);
-                       free(c->outgoing->name);
-                       free(c->outgoing);
-                       c->outgoing = NULL;
-               }
-
+               c->outgoing = false;
                terminate_connection(c, false);
        }
 
+       list_delete_list(outgoing_list);
+
        if(myself && myself->connection) {
                subnet_update(myself, NULL, false);
                terminate_connection(myself->connection, false);
+               free_connection(myself->connection);
        }
 
        for(i = 0; i < listen_sockets; i++) {
@@ -538,10 +526,10 @@ void close_network_connections(void) {
                close(listen_socket[i].udp);
        }
 
-       asprintf(&envp[0], "NETNAME=%s", netname ? : "");
-       asprintf(&envp[1], "DEVICE=%s", device ? : "");
-       asprintf(&envp[2], "INTERFACE=%s", iface ? : "");
-       asprintf(&envp[3], "NAME=%s", myself->name);
+       xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
+       xasprintf(&envp[1], "DEVICE=%s", device ? : "");
+       xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
+       xasprintf(&envp[3], "NAME=%s", myself->name);
        envp[4] = NULL;
 
        exit_requests();
@@ -552,6 +540,8 @@ void close_network_connections(void) {
 
        execute_script("tinc-down", envp);
 
+       if(myport) free(myport);
+
        for(i = 0; i < 4; i++)
                free(envp[i]);