Revert to edge and graph stuff. This time, use a directed graph.

[tinc] / src / net_setup.c

diff --git a/src/net_setup.c b/src/net_setup.c
index cd2b7ea..fe7a562 100644 (file)
--- a/src/net_setup.c
+++ b/src/net_setup.c
@@ -1,7 +1,7 @@
 /*
     net_setup.c -- Setup.
-    Copyright (C) 1998-2002 Ivo Timmermans <itimmermans@bigfoot.com>,
-                  2000-2002 Guus Sliepen <guus@sliepen.warande.net>
+    Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl>,
+                  2000-2002 Guus Sliepen <guus@sliepen.eu.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
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: net_setup.c,v 1.1.2.13 2002/03/25 13:54:49 guus Exp $
+    $Id: net_setup.c,v 1.1.2.23 2002/09/04 13:48:52 guus Exp $
 */
 
 #include "config.h"
@@ -26,8 +26,13 @@
 #include <fcntl.h>
 #include <netdb.h>
 #include <netinet/in.h>
-#ifdef HAVE_LINUX
+#ifdef HAVE_NETINET_IN_SYSTM_H
+ #include <netinet/in_systm.h>
+#endif
+#ifdef HAVE_NETINET_IP_H
  #include <netinet/ip.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
  #include <netinet/tcp.h>
 #endif
 #include <stdio.h>
@@ -107,13 +112,26 @@ cp
           free(fname);
           c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL);
           fclose(fp);
-          if(!c->rsa_key)
+         if(c->rsa_key)
+           return 0; /* Woohoo. */
+         
+         /* If it fails, try PEM_read_RSA_PUBKEY. */
+          if((fp = fopen(fname, "r")) == NULL)
             {
-              syslog(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"),
+              syslog(LOG_ERR, _("Error reading RSA public key file `%s': %s"),
                      fname, strerror(errno));
+              free(fname);
               return -1;
             }
-          return 0;
+          free(fname);
+          c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL);
+          fclose(fp);
+         if(c->rsa_key)
+           return 0;
+
+          syslog(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"),
+                 fname, strerror(errno));
+          return -1;
         }
       else
         {
@@ -135,11 +153,23 @@ cp
 
   if(c->rsa_key)
     return 0;
-  else
+
+  /* Try again with PEM_read_RSA_PUBKEY. */
+
+  asprintf(&fname, "%s/hosts/%s", confbase, c->name);
+  if((fp = fopen(fname, "r")))
     {
-      syslog(LOG_ERR, _("No public key for %s specified!"), c->name);
-      return -1;
+      c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL);
+      fclose(fp);
     }
+
+  free(fname);
+
+  if(c->rsa_key)
+    return 0;
+
+  syslog(LOG_ERR, _("No public key for %s specified!"), c->name);
+  return -1;
 }
 
 int read_rsa_private_key(void)
@@ -184,34 +214,6 @@ cp
   return -1;
 }
 
-int check_rsa_key(RSA *rsa_key)
-{
-  char *test1, *test2, *test3;
-cp
-  if(rsa_key->p && rsa_key->q)
-    {
-      if(RSA_check_key(rsa_key) != 1)
-          return -1;
-    }
-  else
-    {
-      test1 = xmalloc(RSA_size(rsa_key));
-      test2 = xmalloc(RSA_size(rsa_key));
-      test3 = xmalloc(RSA_size(rsa_key));
-
-      if(RSA_public_encrypt(RSA_size(rsa_key), test1, test2, rsa_key, RSA_NO_PADDING) != RSA_size(rsa_key))
-          return -1;
-
-      if(RSA_private_decrypt(RSA_size(rsa_key), test2, test3, rsa_key, RSA_NO_PADDING) != RSA_size(rsa_key))
-          return -1;
-
-      if(memcmp(test1, test3, RSA_size(rsa_key)))
-          return -1;
-    }
-cp
-  return 0;
-}
-
 /*
   Configure node_t myself and set up the local sockets (listen only)
 */
@@ -220,6 +222,7 @@ int setup_myself(void)
   config_t *cfg;
   subnet_t *subnet;
   char *name, *hostname, *mode, *afname, *cipher, *digest;
+  char *address = NULL;
   struct addrinfo hint, *ai, *aip;
   int choice, err;
 cp
@@ -263,12 +266,6 @@ cp
     return -1;
 cp
 
-  if(check_rsa_key(myself->connection->rsa_key))
-    {
-      syslog(LOG_ERR, _("Invalid public/private keypair!"));
-      return -1;
-    }
-
   if(!get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport))
     asprintf(&myport, "655");
 
@@ -474,17 +471,21 @@ cp
   
   memset(&hint, 0, sizeof(hint));
   
+  get_config_string(lookup_config(config_tree, "BindToAddress"), &address);
+
   hint.ai_family = addressfamily;
   hint.ai_socktype = SOCK_STREAM;
   hint.ai_protocol = IPPROTO_TCP;
   hint.ai_flags = AI_PASSIVE;
 
-  if((err = getaddrinfo(NULL, myport, &hint, &ai)) || !ai)
+  if((err = getaddrinfo(address, myport, &hint, &ai)) || !ai)
     {
       syslog(LOG_ERR, _("System call `%s' failed: %s"), "getaddrinfo", gai_strerror(err));
       return -1;
     }
 
+  listen_sockets = 0;
+
   for(aip = ai; aip; aip = aip->ai_next)
     {
       if((listen_socket[listen_sockets].tcp = setup_listen_socket((sockaddr_t *)aip->ai_addr)) < 0)
@@ -522,6 +523,8 @@ cp
 */
 int setup_network_connections(void)
 {
+  char *envp[4];
+  int i;
 cp
   now = time(NULL);
 
@@ -546,7 +549,15 @@ cp
     return -1;
 
   /* Run tinc-up script to further initialize the tap interface */
-  execute_script("tinc-up");
+  asprintf(&envp[0], "NETNAME=%s", netname?netname:"");
+  asprintf(&envp[1], "DEVICE=%s", device?device:"");
+  asprintf(&envp[2], "INTERFACE=%s", interface?interface:"");
+  envp[3] = NULL;
+
+  execute_script("tinc-up", envp);
+
+  for(i = 0; i < 4; i++)
+    free(envp[i]);
 
   if(setup_myself() < 0)
     return -1;
@@ -563,6 +574,7 @@ void close_network_connections(void)
 {
   avl_node_t *node, *next;
   connection_t *c;
+  char *envp[4];
   int i;
 cp
   for(node = connection_tree->head; node; node = next)
@@ -590,7 +602,15 @@ cp
   exit_nodes();
   exit_connections();
 
-  execute_script("tinc-down");
+  asprintf(&envp[0], "NETNAME=%s", netname?netname:"");
+  asprintf(&envp[1], "DEVICE=%s", device?device:"");
+  asprintf(&envp[2], "INTERFACE=%s", interface?interface:"");
+  envp[3] = NULL;
+
+  execute_script("tinc-down", envp);
+
+  for(i = 0; i < 4; i++)
+    free(envp[i]);
 
   close_device();
 cp