Preparation for Reference Type

4 files changed, 101 insertions, 1 deletions

diff --git a/src/include/gnunet_gnsrecord_lib.h b/src/include/gnunet_gnsrecord_lib.h
index 41e23e1ab..9e430c2aa 100644
--- a/src/include/gnunet_gnsrecord_lib.h
+++ b/src/include/gnunet_gnsrecord_lib.h
@@ -146,6 +146,11 @@ extern "C" {
 #define GNUNET_GNSRECORD_TYPE_RECLAIM_ATTEST_ATTR 65554
 
 /**
+ * Record type for reclaim attestation references
+ */
+#define GNUNET_GNSRECORD_TYPE_RECLAIM_ATTEST_REF 65555
+
+/**
  * Flags that can be set for a record.
  */
 enum GNUNET_GNSRECORD_Flags
diff --git a/src/include/gnunet_protocols.h b/src/include/gnunet_protocols.h
index f1dc74462..f8d424359 100644
--- a/src/include/gnunet_protocols.h
+++ b/src/include/gnunet_protocols.h
@@ -2720,6 +2720,8 @@ extern "C" {
 
 #define GNUNET_MESSAGE_TYPE_RECLAIM_ATTESTATION_RESULT 979
 
+#define GNUNET_MESSAGE_TYPE_RECLAIM_REFERENCE_STORE 980
+
 /**************************************************
  *
  * ABD MESSAGE TYPES
diff --git a/src/include/gnunet_reclaim_attribute_lib.h b/src/include/gnunet_reclaim_attribute_lib.h
index 8476e77fc..cfdecae79 100644
--- a/src/include/gnunet_reclaim_attribute_lib.h
+++ b/src/include/gnunet_reclaim_attribute_lib.h
@@ -138,6 +138,34 @@ struct GNUNET_RECLAIM_ATTESTATION_Claim
 };
 
 /**
+ * A reference to an Attestatiom.
+ */
+struct GNUNET_RECLAIM_ATTESTATION_REFERENCE
+{
+  /**
+   * ID
+   */
+  uint64_t id;
+
+  /**
+   * Referenced ID of Attestation
+   */
+  uint64_t id_attest;
+
+  /**
+   * The name of the attribute/attestation reference value. Note "name" must never be individually
+   * free'd
+   */
+  const char *name;
+
+  /**
+   * The name of the attribute/attestation reference value. Note "name" must never be individually
+   * free'd
+   */
+  const char *reference_value;
+};
+
+/**
  * A list of GNUNET_RECLAIM_ATTRIBUTE_Claim structures.
  */
 struct GNUNET_RECLAIM_ATTRIBUTE_ClaimList
@@ -450,6 +478,51 @@ GNUNET_RECLAIM_ATTESTATION_number_to_typename (uint32_t type);
 uint32_t
 GNUNET_RECLAIM_ATTESTATION_typename_to_number (const char *typename);
 
+/**
+ * Create a new attestation reference.
+ *
+ * @param attr_name the referenced claim name
+ * @param ref_value the claim name in the attestation
+ * @return the new reference
+ */
+struct GNUNET_RECLAIM_ATTESTATION_REFERENCE *
+GNUNET_RECLAIM_ATTESTATION_reference_new (const char *attr_name,
+                                          const char *ref_value);
+
+
+/**
+ * Get required size for serialization buffer
+ *
+ * @param attr the reference to serialize
+ * @return the required buffer size
+ */
+size_t
+GNUNET_RECLAIM_ATTESTATION_REF_serialize_get_size (
+  const struct GNUNET_RECLAIM_ATTESTATION_REFERENCE *attr);
+
+/**
+ * Serialize a reference
+ *
+ * @param attr the reference to serialize
+ * @param result the serialized reference
+ * @return length of serialized data
+ */
+size_t
+GNUNET_RECLAIM_ATTESTATION_REF_serialize (
+  const struct GNUNET_RECLAIM_ATTESTATION_REFERENCE *attr,
+  char *result);
+
+/**
+ * Deserialize a reference
+ *
+ * @param data the serialized reference
+ * @param data_size the length of the serialized data
+ *
+ * @return a GNUNET_IDENTITY_PROVIDER_Attribute, must be free'd by caller
+ */
+struct GNUNET_RECLAIM_ATTESTATION_REFERENCE *
+GNUNET_RECLAIM_ATTESTATION_REF_deserialize (const char *data, size_t data_size);
+
 #if 0 /* keep Emacsens' auto-indent happy */
 {
 #endif
diff --git a/src/include/gnunet_reclaim_service.h b/src/include/gnunet_reclaim_service.h
index e7384fd06..eb6c1bc9e 100644
--- a/src/include/gnunet_reclaim_service.h
+++ b/src/include/gnunet_reclaim_service.h
@@ -117,7 +117,7 @@ typedef void (*GNUNET_RECLAIM_ContinuationWithStatus) (void *cls,
  */
 typedef void (*GNUNET_RECLAIM_AttributeResult) (
   void *cls, const struct GNUNET_CRYPTO_EcdsaPublicKey *identity,
-  const struct GNUNET_RECLAIM_ATTRIBUTE_Claim *attr, 
+  const struct GNUNET_RECLAIM_ATTRIBUTE_Claim *attr,
   const struct GNUNET_RECLAIM_ATTESTATION_Claim *attest);
 
 
@@ -242,6 +242,26 @@ GNUNET_RECLAIM_get_attributes_start (
   GNUNET_RECLAIM_AttributeResult proc, void *proc_cls,
   GNUNET_SCHEDULER_TaskCallback finish_cb, void *finish_cb_cls);
 
+/**
+   * Store an attestation reference.  If the reference is already present,
+   * it is replaced with the new reference.
+   *
+   * @param h handle to the re:claimID service
+   * @param pkey private key of the identity
+   * @param attr the reference value
+   * @param exp_interval the relative expiration interval for the reference
+   * @param cont continuation to call when done
+   * @param cont_cls closure for @a cont
+   * @return handle to abort the request
+   */
+struct GNUNET_RECLAIM_Operation *
+GNUNET_RECLAIM_attestation_reference_store (
+  struct GNUNET_RECLAIM_Handle *h,
+  const struct GNUNET_CRYPTO_EcdsaPrivateKey *pkey,
+  const struct GNUNET_RECLAIM_ATTESTATION_REFERENCE *attr,
+  const struct GNUNET_TIME_Relative *exp_interval,
+  GNUNET_RECLAIM_ContinuationWithStatus cont,
+  void *cont_cls);
 
 /**
  * Calls the record processor specified in #GNUNET_RECLAIM_get_attributes_start