From: Martin Schanzenbach <mschanzenbach@posteo.de>
Date: Thu, 21 Jun 2012 15:19:45 +0000 (+0000)
Subject: -fix cnames #2448
X-Git-Tag: initial-import-from-subversion-38251~12897
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=1980c195fb4b84015ffc65d5a107e30a19bb0daa;p=oweals%2Fgnunet.git

-fix cnames #2448
---

diff --git a/src/gns/gns.h b/src/gns/gns.h
index e34d0a086..e856a3312 100644
--- a/src/gns/gns.h
+++ b/src/gns/gns.h
@@ -30,6 +30,7 @@
 
 #define GNUNET_GNS_TLD "gnunet"
 #define GNUNET_GNS_TLD_ZKEY "zkey"
+#define GNUNET_GNS_TLD_PLUS "+"
 #define GNUNET_GNS_DHT_MAX_UPDATE_INTERVAL 3600
 
 #define MAX_DNS_LABEL_LENGTH 63
diff --git a/src/gns/gnunet-service-gns_resolver.c b/src/gns/gnunet-service-gns_resolver.c
index cfd6be5f3..045112eae 100644
--- a/src/gns/gnunet-service-gns_resolver.c
+++ b/src/gns/gnunet-service-gns_resolver.c
@@ -2757,6 +2757,7 @@ handle_delegation_ns (void* cls, struct ResolverHandle *rh,
 {
   struct RecordLookupHandle* rlh;
   rlh = (struct RecordLookupHandle*) cls;
+  int s_len = 0;
 
   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
              "GNS_PHASE_DELEGATE_NS-%llu: Resolution status: %d.\n",
@@ -2783,16 +2784,44 @@ handle_delegation_ns (void* cls, struct ResolverHandle *rh,
         GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
                   "GNS_PHASE_DELEGATE_NS-%llu: Resolved queried CNAME in NS.\n",
                   rh->id);
-        finish_lookup(rh, rlh, rd_count, rd);
-        free_resolver_handle(rh);
+        strcpy (rh->name, rh->authority_name);
+        finish_lookup (rh, rlh, rd_count, rd);
+        free_resolver_handle (rh);
         return;
       }
       
-      /* A CNAME can only occur alone */
-      GNUNET_assert (is_canonical ((char*)rd->data));
-      strcpy (rh->name, rd->data);
-      resolve_delegation_ns (rh);
-      return;
+      /* A .+ CNAME  */
+      if (is_tld ((char*)rd->data, GNUNET_GNS_TLD_PLUS))
+      {
+        s_len = strlen (rd->data) - 2;
+        memcpy (rh->name, rd->data, s_len);
+        rh->name[s_len] = '\0';
+        resolve_delegation_ns (rh);
+        return;
+      }
+      else if (is_tld ((char*)rd->data, GNUNET_GNS_TLD_ZKEY))
+      {
+        gns_resolver_lookup_record (rh->authority,
+                                    rh->private_local_zone,
+                                    rlh->record_type,
+                                    (char*)rd->data,
+                                    rh->priv_key,
+                                    rh->timeout,
+                                    rh->only_cached,
+                                    rlh->proc,
+                                    rlh->proc_cls);
+        GNUNET_free (rlh);
+        free_resolver_handle (rh);
+        return;
+      }
+      else
+      {
+        //Try DNS resolver
+        strcpy (rh->dns_name, (char*)rd->data);
+        resolve_dns_name (rh);
+        return;
+      }
+
     }
     else if (rh->status & RSL_DELEGATE_VPN)
     {
@@ -3051,9 +3080,6 @@ process_delegation_result_ns (void* cls,
       GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
                  "GNS_PHASE_DELEGATE_NS-%llu: CNAME found.\n",
                  rh->id);
-      GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
-                 "GNS_PHASE_DELEGATE_NS-%llu: new name to resolve: %s.\n",
-                 rh->id, rh->name);
 
       rh->status |= RSL_CNAME_FOUND;
       rh->proc (rh->proc_cls, rh, rd_count, rd);
@@ -3219,15 +3245,15 @@ resolve_delegation_ns (struct ResolverHandle *rh)
  * @param cls the closure to pass to proc
  */
 void
-gns_resolver_lookup_record(struct GNUNET_CRYPTO_ShortHashCode zone,
-                           struct GNUNET_CRYPTO_ShortHashCode pzone,
-                           uint32_t record_type,
-                           const char* name,
-                           struct GNUNET_CRYPTO_RsaPrivateKey *key,
-                           struct GNUNET_TIME_Relative timeout,
-                           int only_cached,
-                           RecordLookupProcessor proc,
-                           void* cls)
+gns_resolver_lookup_record (struct GNUNET_CRYPTO_ShortHashCode zone,
+                            struct GNUNET_CRYPTO_ShortHashCode pzone,
+                            uint32_t record_type,
+                            const char* name,
+                            struct GNUNET_CRYPTO_RsaPrivateKey *key,
+                            struct GNUNET_TIME_Relative timeout,
+                            int only_cached,
+                            RecordLookupProcessor proc,
+                            void* cls)
 {
   struct ResolverHandle *rh;
   struct RecordLookupHandle* rlh;
diff --git a/src/gns/test_gns_cname_lookup.c b/src/gns/test_gns_cname_lookup.c
index a925e529d..8a319f821 100644
--- a/src/gns/test_gns_cname_lookup.c
+++ b/src/gns/test_gns_cname_lookup.c
@@ -41,10 +41,22 @@
 #define DEFAULT_NUM_PEERS 2
 
 /* test records to resolve */
-#define TEST_DOMAIN "www.gnunet"
-#define TEST_IP "127.0.0.1"
-#define TEST_RECORD_NAME "server"
-#define TEST_RECORD_CNAME "www"
+#define TEST_DOMAIN_PLUS "www.gnunet"
+#define TEST_DOMAIN_ZKEY "www2.gnunet"
+#define TEST_DOMAIN_DNS  "www3.gnunet"
+#define TEST_IP_PLUS "127.0.0.1"
+#define TEST_IP_ZKEY "127.0.0.2"
+#define TEST_IP_DNS  "131.159.74.67"
+#define TEST_RECORD_CNAME_SERVER "server.gnunet"
+#define TEST_RECORD_CNAME_PLUS "server.+"
+#define TEST_RECORD_CNAME_ZKEY "www.188JSUMKEF25GVU8TTV0PBNNN8JVCPUEDFV1UHJJU884JD25V0T0.zkey"
+#define TEST_RECORD_CNAME_DNS "gnunet.org"
+#define TEST_RECORD_NAME_SERVER "server"
+#define TEST_RECORD_NAME_PLUS "www"
+#define TEST_RECORD_NAME_ZKEY "www2"
+#define TEST_RECORD_NAME_DNS "www3"
+
+#define KEYFILE_BOB "zonefiles/188JSUMKEF25GVU8TTV0PBNNN8JVCPUEDFV1UHJJU884JD25V0T0.zkey"
 
 /* Globals */
 
@@ -106,10 +118,10 @@ on_lookup_result_cname (void *cls, uint32_t rd_count,
       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_CNAME)
       {
         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "CNAME: %s\n", rd[i].data);
-        if (0 == strcmp(rd[i].data, TEST_RECORD_NAME))
+        if (0 == strcmp(rd[i].data, TEST_RECORD_CNAME_SERVER))
         {
           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                    "%s correctly resolved to %s!\n", TEST_DOMAIN, rd[i].data);
+                    "%s correctly resolved to %s!\n", TEST_DOMAIN_PLUS, rd[i].data);
           ok = 0;
         }
       }
@@ -123,8 +135,55 @@ on_lookup_result_cname (void *cls, uint32_t rd_count,
   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 }
+
+static void
+on_lookup_result_dns (void *cls, uint32_t rd_count,
+                 const struct GNUNET_NAMESTORE_RecordData *rd)
+{
+  struct in_addr a;
+  int i;
+  char* addr;
+  
+  if (rd_count == 0)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Lookup failed, rp_filtering?\n");
+    ok = 2;
+  }
+  else
+  {
+    ok = 1;
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
+    for (i=0; i<rd_count; i++)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
+      if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
+      {
+        memcpy(&a, rd[i].data, sizeof(a));
+        addr = inet_ntoa(a);
+        GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
+        if (0 == strcmp(addr, TEST_IP_DNS))
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                    "%s correctly resolved to %s!\n", TEST_DOMAIN_DNS, addr);
+          ok = 0;
+        }
+      }
+      else
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
+      }
+    }
+  }
+
+  GNUNET_GNS_lookup (gns_handle, TEST_DOMAIN_PLUS, GNUNET_GNS_RECORD_TYPE_CNAME,
+                     GNUNET_YES,
+                     NULL,
+                     &on_lookup_result_cname, TEST_DOMAIN_PLUS);
+}
+
 static void
-on_lookup_result(void *cls, uint32_t rd_count,
+on_lookup_result_zkey (void *cls, uint32_t rd_count,
                  const struct GNUNET_NAMESTORE_RecordData *rd)
 {
   struct in_addr a;
@@ -149,10 +208,10 @@ on_lookup_result(void *cls, uint32_t rd_count,
         memcpy(&a, rd[i].data, sizeof(a));
         addr = inet_ntoa(a);
         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
-        if (0 == strcmp(addr, TEST_IP))
+        if (0 == strcmp(addr, TEST_IP_ZKEY))
         {
           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                    "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
+                    "%s correctly resolved to %s!\n", TEST_DOMAIN_ZKEY, addr);
           ok = 0;
         }
       }
@@ -163,10 +222,56 @@ on_lookup_result(void *cls, uint32_t rd_count,
     }
   }
 
-  GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_CNAME,
+  GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN_DNS, GNUNET_GNS_RECORD_TYPE_A,
                     GNUNET_YES,
                     NULL,
-                    &on_lookup_result_cname, TEST_DOMAIN);
+                    &on_lookup_result_dns, TEST_DOMAIN_DNS);
+}
+
+static void
+on_lookup_result_plus (void *cls, uint32_t rd_count,
+                 const struct GNUNET_NAMESTORE_RecordData *rd)
+{
+  struct in_addr a;
+  int i;
+  char* addr;
+  
+  if (rd_count == 0)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Lookup failed, rp_filtering?\n");
+    ok = 2;
+  }
+  else
+  {
+    ok = 1;
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
+    for (i=0; i<rd_count; i++)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
+      if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
+      {
+        memcpy(&a, rd[i].data, sizeof(a));
+        addr = inet_ntoa(a);
+        GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
+        if (0 == strcmp(addr, TEST_IP_PLUS))
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                    "%s correctly resolved to %s!\n", TEST_DOMAIN_PLUS, addr);
+          ok = 0;
+        }
+      }
+      else
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
+      }
+    }
+  }
+
+  GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN_ZKEY, GNUNET_GNS_RECORD_TYPE_A,
+                    GNUNET_YES,
+                    NULL,
+                    &on_lookup_result_zkey, TEST_DOMAIN_ZKEY);
 }
 
 
@@ -190,10 +295,10 @@ commence_testing (void *cls, int32_t success, const char *emsg)
     ok = 2;
   }
 
-  GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
+  GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN_PLUS, GNUNET_GNS_RECORD_TYPE_A,
                     GNUNET_YES,
                     NULL,
-                    &on_lookup_result, TEST_DOMAIN);
+                    &on_lookup_result_plus, TEST_DOMAIN_PLUS);
 }
 
 
@@ -231,6 +336,7 @@ do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 {
   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
+  struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
   char* alice_keyfile;
   
   cfg = _cfg;
@@ -261,8 +367,10 @@ do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
   
   GNUNET_free(alice_keyfile);
 
+  bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
+
   struct GNUNET_NAMESTORE_RecordData rd;
-  char* ip = TEST_IP;
+  char* ip = TEST_IP_PLUS;
   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
   rd.expiration_time = UINT64_MAX;
   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
@@ -273,23 +381,58 @@ do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 
   GNUNET_NAMESTORE_record_create (namestore_handle,
                                   alice_key,
-                                  TEST_RECORD_NAME,
+                                  TEST_RECORD_NAME_SERVER,
+                                  &rd,
+                                  NULL,
+                                  NULL);
+
+  rd.data_size = strlen (TEST_RECORD_CNAME_PLUS);
+  rd.data = TEST_RECORD_CNAME_PLUS;
+  rd.record_type = GNUNET_GNS_RECORD_TYPE_CNAME;
+
+  GNUNET_NAMESTORE_record_create (namestore_handle,
+                                  alice_key,
+                                  TEST_RECORD_NAME_PLUS,
+                                  &rd,
+                                  NULL,
+                                  NULL);
+
+  rd.data_size = strlen (TEST_RECORD_CNAME_ZKEY);
+  rd.data = TEST_RECORD_CNAME_ZKEY;
+  rd.record_type = GNUNET_GNS_RECORD_TYPE_CNAME;
+
+  GNUNET_NAMESTORE_record_create (namestore_handle,
+                                  alice_key,
+                                  TEST_RECORD_NAME_ZKEY,
                                   &rd,
                                   NULL,
                                   NULL);
 
-  rd.data_size = strlen (TEST_RECORD_NAME);
-  rd.data = TEST_RECORD_NAME;
+  rd.data_size = strlen (TEST_RECORD_CNAME_DNS);
+  rd.data = TEST_RECORD_CNAME_DNS;
   rd.record_type = GNUNET_GNS_RECORD_TYPE_CNAME;
 
   GNUNET_NAMESTORE_record_create (namestore_handle,
                                   alice_key,
-                                  TEST_RECORD_CNAME,
+                                  TEST_RECORD_NAME_DNS,
+                                  &rd,
+                                  NULL,
+                                  NULL);
+
+  GNUNET_assert(1 == inet_pton (AF_INET, TEST_IP_ZKEY, web));
+  rd.data_size = sizeof(struct in_addr);
+  rd.data = web;
+  rd.record_type = GNUNET_DNSPARSER_TYPE_A;
+  
+  GNUNET_NAMESTORE_record_create (namestore_handle,
+                                  bob_key,
+                                  TEST_RECORD_NAME_PLUS,
                                   &rd,
                                   &commence_testing,
                                   NULL);
   
   GNUNET_CRYPTO_rsa_key_free(alice_key);
+  GNUNET_CRYPTO_rsa_key_free(bob_key);
   GNUNET_free(web);
 
 }