[GNUnet-SVN] r21368 - in gnunet/src: gns include

[gnunet]

Author: schanzen
Date: 2012-05-09 11:50:13 +0200 (Wed, 09 May 2012)
New Revision: 21368

Modified:
   gnunet/src/gns/gns.h
   gnunet/src/gns/gns_api.c
   gnunet/src/gns/gnunet-service-gns.c
   gnunet/src/include/gnunet_gns_service.h
Log:
-new per zone api


Modified: gnunet/src/gns/gns.h
===================================================================
--- gnunet/src/gns/gns.h        2012-05-09 08:29:17 UTC (rev 21367)
+++ gnunet/src/gns/gns.h        2012-05-09 09:50:13 UTC (rev 21368)
@@ -53,9 +53,18 @@
   uint32_t id GNUNET_PACKED;
 
   /**
+   * Should we look up in the default zone?
+   */
+  uint32_t use_default_zone GNUNET_PACKED;
+
+  /**
+   * If use_default_zone is empty this zone is used for lookup
+   */
+  struct GNUNET_CRYPTO_ShortHashCode zone;
+
+  /**
    * the type of record to look up
    */
-  // FIXME: bad type - should be of GNUNET_GNS_RecordType
   enum GNUNET_GNS_RecordType type;
 
   /* Followed by the name to look up */
@@ -102,6 +111,16 @@
    */
   uint32_t id GNUNET_PACKED;
 
+  /**
+   * Should we look up in the default zone?
+   */
+  uint32_t use_default_zone GNUNET_PACKED;
+
+  /**
+   * If use_default_zone is empty this zone is used for lookup
+   */
+  struct GNUNET_CRYPTO_ShortHashCode zone;
+
   /* Followed by the name to shorten up */
 };
 

Modified: gnunet/src/gns/gns_api.c
===================================================================
--- gnunet/src/gns/gns_api.c    2012-05-09 08:29:17 UTC (rev 21367)
+++ gnunet/src/gns/gns_api.c    2012-05-09 09:50:13 UTC (rev 21368)
@@ -639,14 +639,16 @@
  *
  * @param handle handle to the GNS service
  * @param name the name to look up
+ * @param zone the zone to start the resolution in
  * @param type the record type to look up
  * @param proc processor to call on result
  * @param proc_cls closure for processor
  * @return handle to the get
  */
 struct GNUNET_GNS_QueueEntry *
-GNUNET_GNS_lookup (struct GNUNET_GNS_Handle *handle,
+GNUNET_GNS_lookup_zone (struct GNUNET_GNS_Handle *handle,
                    const char * name,
+                   struct GNUNET_CRYPTO_ShortHashCode *zone,
                    enum GNUNET_GNS_RecordType type,
                    GNUNET_GNS_LookupResultProcessor proc,
                    void *proc_cls)
@@ -682,6 +684,18 @@
   lookup_msg->header.type = htons (GNUNET_MESSAGE_TYPE_GNS_LOOKUP);
   lookup_msg->header.size = htons (msize);
   lookup_msg->id = htonl(qe->r_id);
+
+  if (NULL != zone)
+  {
+    lookup_msg->use_default_zone = htonl(0);
+    memcpy(&lookup_msg->zone, zone, sizeof(struct 
GNUNET_CRYPTO_ShortHashCode));
+  }
+  else
+  {
+    lookup_msg->use_default_zone = htonl(1);
+    memset(&lookup_msg->zone, 0, sizeof(struct GNUNET_CRYPTO_ShortHashCode));
+  }
+
   lookup_msg->type = htonl(type);
 
   memcpy(&lookup_msg[1], name, strlen(name));
@@ -693,19 +707,40 @@
   return qe;
 }
 
+/**
+ * Perform an asynchronous Lookup operation on the GNS.
+ *
+ * @param handle handle to the GNS service
+ * @param name the name to look up
+ * @param type the record type to look up
+ * @param proc processor to call on result
+ * @param proc_cls closure for processor
+ * @return handle to the get
+ */
+struct GNUNET_GNS_QueueEntry *
+GNUNET_GNS_lookup (struct GNUNET_GNS_Handle *handle,
+                   const char * name,
+                   enum GNUNET_GNS_RecordType type,
+                   GNUNET_GNS_LookupResultProcessor proc,
+                   void *proc_cls)
+{
+  return GNUNET_GNS_lookup_zone (handle, name, NULL, type, proc, proc_cls);
+}
 
 /**
  * Perform a name shortening operation on the GNS.
  *
  * @param handle handle to the GNS service
  * @param name the name to look up
+ * @param zone the zone to start the resolution in
  * @param proc function to call on result
  * @param proc_cls closure for processor
  * @return handle to the operation
  */
 struct GNUNET_GNS_QueueEntry *
-GNUNET_GNS_shorten (struct GNUNET_GNS_Handle *handle,
+GNUNET_GNS_shorten_zone (struct GNUNET_GNS_Handle *handle,
                     const char * name,
+                    struct GNUNET_CRYPTO_ShortHashCode *zone,
                     GNUNET_GNS_ShortenResultProcessor proc,
                     void *proc_cls)
 {
@@ -740,6 +775,18 @@
   shorten_msg->header.type = htons (GNUNET_MESSAGE_TYPE_GNS_SHORTEN);
   shorten_msg->header.size = htons (msize);
   shorten_msg->id = htonl(qe->r_id);
+  
+  if (NULL != zone)
+  {
+    shorten_msg->use_default_zone = htonl(0);
+    memcpy(&shorten_msg->zone, zone,
+           sizeof(struct GNUNET_CRYPTO_ShortHashCode));
+  }
+  else
+  {
+    shorten_msg->use_default_zone = htonl(1);
+    memset(&shorten_msg->zone, 0, sizeof(struct GNUNET_CRYPTO_ShortHashCode));
+  }
 
   memcpy(&shorten_msg[1], name, strlen(name));
 
@@ -750,8 +797,24 @@
   return qe;
 }
 
-
 /**
+ * Perform a name shortening operation on the GNS.
+ *
+ * @param handle handle to the GNS service
+ * @param name the name to look up
+ * @param proc function to call on result
+ * @param proc_cls closure for processor
+ * @return handle to the operation
+ */
+struct GNUNET_GNS_QueueEntry *
+GNUNET_GNS_shorten (struct GNUNET_GNS_Handle *handle,
+                    const char * name,
+                    GNUNET_GNS_ShortenResultProcessor proc,
+                    void *proc_cls)
+{
+  return GNUNET_GNS_shorten_zone (handle, name, NULL, proc, proc_cls);
+}
+/**
  * Perform an authority lookup for a given name.
  *
  * @param handle handle to the GNS service

Modified: gnunet/src/gns/gnunet-service-gns.c
===================================================================
--- gnunet/src/gns/gnunet-service-gns.c 2012-05-09 08:29:17 UTC (rev 21367)
+++ gnunet/src/gns/gnunet-service-gns.c 2012-05-09 09:50:13 UTC (rev 21368)
@@ -60,6 +60,9 @@
   /* request type */
   enum GNUNET_GNS_RecordType type;
 
+  /* optional zone private key used for lookup */
+  struct GNUNET_CRYPTO_RsaPrivateKey *zone_key;
+  
   /* name to shorten */
   char* name;
 
@@ -97,6 +100,9 @@
   /* request type */
   enum GNUNET_GNS_RecordType type;
 
+  /* optional zone private key used for lookup */
+  struct GNUNET_CRYPTO_RsaPrivateKey *zone_key;
+
   /* the name to look up */
   char* name; //Needed?
 };
@@ -416,7 +422,44 @@
                                                  NULL);
 }
 
+/**
+ * Lookup the private key for the zone
+ *
+ * @param zone the zone we want a private key for
+ * @return NULL of not found else the key
+ */
+struct GNUNET_CRYPTO_RsaPrivateKey*
+lookup_private_key(struct GNUNET_CRYPTO_ShortHashCode *zone)
+{
+  char* keydir;
+  struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
+  char* location;
+  struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
 
+  if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (GNS_cfg,
+                                                            "namestore",
+                                             "ZONEFILE_DIRECTORY", &keydir))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "No zonefile directory!\n");
+    return NULL;
+  }
+
+  GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
+
+  GNUNET_asprintf(&location, "%s%s%s.zkey", keydir,
+                  DIR_SEPARATOR_STR, zonename);
+
+  if (GNUNET_YES == GNUNET_DISK_file_test (location))
+    key = GNUNET_CRYPTO_rsa_key_create_from_file (location);
+
+  GNUNET_free(location);
+  GNUNET_free(keydir);
+
+  return key;
+
+}
+
 /* END DHT ZONE PROPAGATION */
 
 /**
@@ -456,6 +499,7 @@
   
   GNUNET_free(rmsg);
   GNUNET_free_non_null(csh->name);
+  GNUNET_free_non_null(csh->zone_key);
   GNUNET_free(csh);
 
 }
@@ -477,6 +521,8 @@
   struct ClientShortenHandle *csh;
   char name[MAX_DNS_NAME_LENGTH];
   char* nameptr = name;
+  struct GNUNET_CRYPTO_ShortHashCode zone;
+  struct GNUNET_CRYPTO_RsaPrivateKey *key;
 
   if (ntohs (message->size) < sizeof (struct GNUNET_GNS_ClientShortenMessage))
   {
@@ -501,6 +547,7 @@
   csh = GNUNET_malloc(sizeof(struct ClientShortenHandle));
   csh->client = client;
   csh->unique_id = sh_msg->id;
+  csh->zone_key = NULL;
   
   GNUNET_STRINGS_utf8_tolower((char*)&sh_msg[1], &nameptr);
 
@@ -531,12 +578,26 @@
   
   GNUNET_SERVER_notification_context_add (nc, client);
   
+  if (1 == ntohl(sh_msg->use_default_zone))
+    zone = zone_hash; //Default zone
+  else
+    zone = sh_msg->zone;
+  
   /* Start shortening */
   if (GNUNET_YES == auto_import_pkey)
-    gns_resolver_shorten_name(zone_hash, name, zone_key,
+  {
+    if (1 == ntohl(sh_msg->use_default_zone))
+      key = zone_key;
+    else
+    {
+      key = lookup_private_key(&sh_msg->zone);
+      csh->zone_key = key;
+    }
+    gns_resolver_shorten_name(zone, name, key,
                               &send_shorten_response, csh);
+  }
   else
-    gns_resolver_shorten_name(zone_hash, name, NULL,
+    gns_resolver_shorten_name(zone, name, NULL,
                               &send_shorten_response, csh);
 }
 
@@ -682,6 +743,7 @@
 }
 
 
+
 /**
  * Reply to client with the result from our lookup.
  *
@@ -719,6 +781,10 @@
   
   GNUNET_free(rmsg);
   GNUNET_free(clh->name);
+  
+  if (NULL != clh->zone_key)
+    GNUNET_free(clh->zone_key);
+
   GNUNET_free(clh);
 
 }
@@ -743,6 +809,8 @@
   char name[MAX_DNS_NAME_LENGTH];
   struct ClientLookupHandle *clh;
   char* nameptr = name;
+  struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
+  struct GNUNET_CRYPTO_ShortHashCode zone;
 
   if (ntohs (message->size) < sizeof (struct GNUNET_GNS_ClientLookupMessage))
   {
@@ -773,6 +841,7 @@
   strcpy(clh->name, name);
   clh->unique_id = sh_msg->id;
   clh->type = ntohl(sh_msg->type);
+  clh->zone_key = NULL;
   
   if (strlen (name) > MAX_DNS_NAME_LENGTH) {
     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
@@ -781,17 +850,30 @@
     send_lookup_response(clh, 0, NULL);
     return;
   }
+
+  if (1 == ntohl(sh_msg->use_default_zone))
+    zone = zone_hash; //Default zone
+  else
+    zone = sh_msg->zone;
   
   if (GNUNET_YES == auto_import_pkey)
   {
-    gns_resolver_lookup_record(zone_hash, clh->type, name,
-                               zone_key,
+    if (1 == ntohl(sh_msg->use_default_zone))
+      key = zone_key;
+    else
+    {
+      key = lookup_private_key(&sh_msg->zone);
+      clh->zone_key = key;
+    }
+    
+    gns_resolver_lookup_record(zone, clh->type, name,
+                               key,
                                default_lookup_timeout,
                                &send_lookup_response, clh);
   }
   else
   {
-    gns_resolver_lookup_record(zone_hash, clh->type, name,
+    gns_resolver_lookup_record(zone, clh->type, name,
                                NULL,
                                default_lookup_timeout,
                                &send_lookup_response, clh);
@@ -826,6 +908,8 @@
     {&handle_get_authority, NULL, GNUNET_MESSAGE_TYPE_GNS_GET_AUTH, 0}
   };
 
+  GNS_cfg = c;
+
   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (c, "gns",
                                              "ZONEKEY", &keyfile))
   {

Modified: gnunet/src/include/gnunet_gns_service.h
===================================================================
--- gnunet/src/include/gnunet_gns_service.h     2012-05-09 08:29:17 UTC (rev 
21367)
+++ gnunet/src/include/gnunet_gns_service.h     2012-05-09 09:50:13 UTC (rev 
21368)
@@ -120,7 +120,8 @@
 
 
 /**
- * Perform an asynchronous lookup operation on the GNS.
+ * Perform an asynchronous lookup operation on the GNS
+ * in the default zone.
  *
  * @param handle handle to the GNS service
  * @param name the name to look up
@@ -137,6 +138,26 @@
                          GNUNET_GNS_LookupResultProcessor proc,
                          void *proc_cls);
 
+/**
+ * Perform an asynchronous lookup operation on the GNS
+ * in the zone specified by 'zone'.
+ *
+ * @param handle handle to the GNS service
+ * @param name the name to look up
+ * @param zone the zone to start the resolution in
+ * @param type the GNUNET_GNS_RecordType to look for
+ * @param proc function to call on result
+ * @param proc_cls closure for processor
+ *
+ * @return handle to the queued request
+ */
+struct GNUNET_GNS_QueueEntry *
+GNUNET_GNS_lookup_zone (struct GNUNET_GNS_Handle *handle,
+                         const char * name,
+                         struct GNUNET_CRYPTO_ShortHashCode *zone,
+                         enum GNUNET_GNS_RecordType type,
+                         GNUNET_GNS_LookupResultProcessor proc,
+                         void *proc_cls);
 
 /* *************** Standard API: shorten ******************* */
 
@@ -168,6 +189,23 @@
                     void *proc_cls);
 
 
+/**
+ * Perform a name shortening operation on the GNS.
+ *
+ * @param handle handle to the GNS service
+ * @param name the name to look up
+ * @param zone the zone to start the resolution in
+ * @param proc function to call on result
+ * @param proc_cls closure for processor
+ * @return handle to the operation
+ */
+struct GNUNET_GNS_QueueEntry *
+GNUNET_GNS_shorten_zone (struct GNUNET_GNS_Handle *handle,
+                    const char * name,
+                    struct GNUNET_CRYPTO_ShortHashCode *zone,
+                    GNUNET_GNS_ShortenResultProcessor proc,
+                    void *proc_cls);
+
 /* *************** Standard API: get authority ******************* */