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[GNUnet-SVN] r29015 - in gnunet: doc/man src/gns


From: gnunet
Subject: [GNUnet-SVN] r29015 - in gnunet: doc/man src/gns
Date: Thu, 5 Sep 2013 13:09:18 +0200

Author: grothoff
Date: 2013-09-05 13:09:18 +0200 (Thu, 05 Sep 2013)
New Revision: 29015

Modified:
   gnunet/doc/man/gnunet-dns2gns.1
   gnunet/src/gns/Makefile.am
   gnunet/src/gns/gnunet-dns2gns.c
Log:
-integrate identity service with dns2gns (#3010)

Modified: gnunet/doc/man/gnunet-dns2gns.1
===================================================================
--- gnunet/doc/man/gnunet-dns2gns.1     2013-09-05 10:53:05 UTC (rev 29014)
+++ gnunet/doc/man/gnunet-dns2gns.1     2013-09-05 11:09:18 UTC (rev 29015)
@@ -15,6 +15,8 @@
 
 A DNS\-to\-GNS proxy using gnunet\-dns2gns is available at ".zkey.eu" 
 
+If you do not want to specify a public key and are the owner of the zone that 
gnunet\-dns2gns will use for GNS lookups, you need to first create a pseudonym 
(using "gnunet\-identity \-C NAME"), and then assign it to be used for the 
"dns2gns" service using "gnunet\-identity \-e NAME \-s dns2gns".  After that, 
you can start the dns2gns service (possibly using gnunet\-arm) without 
specifying a public key using "\-z".
+
 .SH OPTIONS
 .B
 .IP "\-c FILENAME,  \-\-config=FILENAME"
@@ -37,10 +39,13 @@
 .B
 .IP "\-v, \-\-version"
 Print GNUnet version number.
+.B
+.IP "\-z PUBLICKEY, \-\-zone=PUBLICKEY"
+Use PUBLICKEY for the zone to resolve GNS names in.  The PUBLICKEY must be 
encoded in the text format which can be obtained using gnunet\-ecc, seen in 
PKEY records and output by gnunet\-identity.  If this option is not specified, 
the default ego associated by gnunet\-identity for the "dns2gns" subsystem will 
be used.  
 
 
 .SH BUGS
 Report bugs by using Mantis <https://gnunet.org/bugs/> or by sending 
electronic mail to <address@hidden>
 
 .SH SEE ALSO
-gnunet\-gns\-fcfs(1), gnunet\-gns(1)
+gnunet\-gns\-fcfs(1), gnunet\-gns(1), gnunet\-identity(1)

Modified: gnunet/src/gns/Makefile.am
===================================================================
--- gnunet/src/gns/Makefile.am  2013-09-05 10:53:05 UTC (rev 29014)
+++ gnunet/src/gns/Makefile.am  2013-09-05 11:09:18 UTC (rev 29015)
@@ -86,12 +86,15 @@
 gnunet_dns2gns_LDADD = \
   $(top_builddir)/src/gns/libgnunetgns.la \
   $(top_builddir)/src/util/libgnunetutil.la \
+  $(top_builddir)/src/identity/libgnunetidentity.la \
   $(top_builddir)/src/namestore/libgnunetnamestore.la \
   $(top_builddir)/src/dns/libgnunetdnsparser.la \
   $(top_builddir)/src/dns/libgnunetdnsstub.la \
   $(GN_LIBINTL)
 gnunet_dns2gns_DEPENDENCIES = \
+  $(top_builddir)/src/gns/libgnunetgns.la \
   $(top_builddir)/src/util/libgnunetutil.la \
+  $(top_builddir)/src/identity/libgnunetidentity.la \
   $(top_builddir)/src/namestore/libgnunetnamestore.la \
   $(top_builddir)/src/dns/libgnunetdnsparser.la \
   $(top_builddir)/src/dns/libgnunetdnsstub.la \

Modified: gnunet/src/gns/gnunet-dns2gns.c
===================================================================
--- gnunet/src/gns/gnunet-dns2gns.c     2013-09-05 10:53:05 UTC (rev 29014)
+++ gnunet/src/gns/gnunet-dns2gns.c     2013-09-05 11:09:18 UTC (rev 29015)
@@ -26,6 +26,7 @@
 #include <gnunet_util_lib.h>
 #include <gnunet_dnsparser_lib.h>
 #include <gnunet_gns_service.h>
+#include <gnunet_identity_service.h>
 #include <gnunet_dnsstub_lib.h>
 #include "gns.h"
 
@@ -149,8 +150,24 @@
  */
 static char *gns_zone_str;
 
+/**
+ * Configuration to use.
+ */
+static const struct GNUNET_CONFIGURATION_Handle *cfg;
 
 /**
+ * Connection to identity service.
+ */
+static struct GNUNET_IDENTITY_Handle *identity;
+
+/**
+ * Request for our ego.
+ */
+static struct GNUNET_IDENTITY_Operation *id_op;
+
+
+
+/**
  * Task run on shutdown.  Cleans up everything.
  *
  * @param cls unused
@@ -557,34 +574,11 @@
 
 
 /**
- * Main function that will be run.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be 
NULL!)
- * @param cfg configuration
+ * Start DNS daemon.
  */
 static void
-run (void *cls, char *const *args, const char *cfgfile,
-     const struct GNUNET_CONFIGURATION_Handle *cfg)
+run_dnsd ()
 {
-  if (NULL == dns_ip)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _("No DNS server specified!\n"));
-    return;
-  }
-  if ( (NULL == gns_zone_str) ||
-       (GNUNET_OK !=
-       GNUNET_CRYPTO_ecc_public_key_from_string (gns_zone_str,
-                                                 strlen (gns_zone_str),
-                                                 &my_zone)) )
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 
-               _("No valid GNS zone specified!\n"));
-    return;
-  }
-
   if (NULL == dns_suffix)
     dns_suffix = DNS_SUFFIX;
   if (NULL == fcfs_suffix)
@@ -665,13 +659,96 @@
                                        &read_dns6,
                                        listen_socket6);
 
+}
+
+
+/** 
+ * Method called to inform about the egos of this peer.
+ *
+ * When used with #GNUNET_IDENTITY_create or #GNUNET_IDENTITY_get,
+ * this function is only called ONCE, and 'NULL' being passed in
+ * @a ego does indicate an error (i.e. name is taken or no default
+ * value is known).  If @a ego is non-NULL and if '*ctx'
+ * is set in those callbacks, the value WILL be passed to a subsequent
+ * call to the identity callback of #GNUNET_IDENTITY_connect (if 
+ * that one was not NULL).
+ *
+ * @param cls closure, NULL
+ * @param ego ego handle
+ * @param ctx context for application to store data for this ego
+ *                 (during the lifetime of this process, initially NULL)
+ * @param name name assigned by the user for this ego,
+ *                   NULL if the user just deleted the ego and it
+ *                   must thus no longer be used
+ */
+static void
+identity_cb (void *cls,
+            struct GNUNET_IDENTITY_Ego *ego,
+            void **ctx,
+            const char *name)
+{
+  id_op = NULL;
+  if (NULL == ego)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+               _("No ego configured for `dns2gns` subsystem\n"));
+    return;
+  }
+  GNUNET_IDENTITY_ego_get_public_key (ego,
+                                     &my_zone);
+  run_dnsd ();
+}
+
+
+/**
+ * Main function that will be run.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be 
NULL!)
+ * @param c configuration
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *c)
+{
+  cfg = c;
+
+  if (NULL == dns_ip)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                _("No DNS server specified!\n"));
+    return;
+  }
   GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
                                &do_shutdown, NULL);
+  if (NULL == gns_zone_str)
+    {
+      identity = GNUNET_IDENTITY_connect (cfg,
+                                         NULL, NULL);
+      id_op = GNUNET_IDENTITY_get (identity,
+                                  "dns2gns",
+                                  &identity_cb,
+                                  NULL);
+      return;
+    }
+  if ( (NULL == gns_zone_str) ||
+       (GNUNET_OK !=
+       GNUNET_CRYPTO_ecc_public_key_from_string (gns_zone_str,
+                                                 strlen (gns_zone_str),
+                                                 &my_zone)) )
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 
+               _("No valid GNS zone specified!\n"));
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  run_dnsd ();
 }
 
 
 /**
- * The main function for the fcfs daemon.
+ * The main function for the dns2gns daemon.
  *
  * @param argc number of arguments from the command line
  * @param argv command line arguments
@@ -695,7 +772,7 @@
       gettext_noop ("UDP port to listen on for inbound DNS requests; default: 
53"), 1,
       &GNUNET_GETOPT_set_uint, &listen_port},
     {'z', "zone", "PUBLICKEY",
-      gettext_noop ("Public key of the GNS zone to use (required)"), 1,
+      gettext_noop ("Public key of the GNS zone to use (overrides default)"), 
1,
       &GNUNET_GETOPT_set_string, &gns_zone_str},
     GNUNET_GETOPT_OPTION_END
   };




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