[GNUnet-SVN] [gnunet] 134/171: -add api impl for revocation

[gnunet]

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martin-schanzenbach pushed a commit to branch master
in repository gnunet.

commit f12a22a2a9b6d71f0fc9d24940e77d84d6568da0
Author: Schanzenbach, Martin <address@hidden>
AuthorDate: Sat Oct 7 11:08:04 2017 +0200

    -add api impl for revocation
---
 .../gnunet-service-identity-provider.c             |   2 +-
 src/identity-provider/identity_provider.h          |   2 +-
 src/identity-provider/identity_provider_api.c      | 107 +++++++++++++++++++--
 src/include/gnunet_identity_provider_service.h     |   2 +-
 4 files changed, 104 insertions(+), 9 deletions(-)

diff --git a/src/identity-provider/gnunet-service-identity-provider.c 
b/src/identity-provider/gnunet-service-identity-provider.c
index b4cf154b4..f9d3f3f92 100644
--- a/src/identity-provider/gnunet-service-identity-provider.c
+++ b/src/identity-provider/gnunet-service-identity-provider.c
@@ -1768,7 +1768,7 @@ attr_store_cont (void *cls,
 {
   struct AttributeStoreHandle *as_handle = cls;
   struct GNUNET_MQ_Envelope *env;
-  struct AttributeStoreResponseMessage *acr_msg;
+  struct AttributeStoreResultMessage *acr_msg;
 
   if (GNUNET_SYSERR == success)
   {
diff --git a/src/identity-provider/identity_provider.h 
b/src/identity-provider/identity_provider.h
index cb0f1591d..be9fdc6f5 100644
--- a/src/identity-provider/identity_provider.h
+++ b/src/identity-provider/identity_provider.h
@@ -65,7 +65,7 @@ struct AttributeStoreMessage
 /**
  * Attribute store response message
  */
-struct AttributeStoreResponseMessage
+struct AttributeStoreResultMessage
 {
   /**
    * Message header
diff --git a/src/identity-provider/identity_provider_api.c 
b/src/identity-provider/identity_provider_api.c
index 97ecc691c..fb9926a2c 100644
--- a/src/identity-provider/identity_provider_api.c
+++ b/src/identity-provider/identity_provider_api.c
@@ -72,6 +72,11 @@ struct GNUNET_IDENTITY_PROVIDER_Operation
    * Attribute result callback
    */
   GNUNET_IDENTITY_PROVIDER_AttributeResult ar_cb;
+  
+  /**
+   * Revocation result callback
+   */
+  GNUNET_IDENTITY_PROVIDER_ContinuationWithStatus rvk_cb;
 
   /**
    * Ticket result callback
@@ -400,7 +405,7 @@ mq_error_handler (void *cls,
  */
 static void
 handle_attribute_store_response (void *cls,
-                             const struct AttributeStoreResponseMessage *msg)
+                             const struct AttributeStoreResultMessage *msg)
 {
   struct GNUNET_IDENTITY_PROVIDER_Handle *h = cls;
   struct GNUNET_IDENTITY_PROVIDER_Operation *op;
@@ -716,6 +721,48 @@ handle_ticket_result (void *cls,
   GNUNET_break (0);
 }
 
+/**
+ * Handle an incoming message of type
+ * #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_REVOKE_TICKET_RESULT
+ *
+ * @param cls
+ * @param msg the message we received
+ */
+static void
+handle_revoke_ticket_result (void *cls,
+                             const struct RevokeTicketResultMessage *msg)
+{
+  struct GNUNET_IDENTITY_PROVIDER_Handle *h = cls;
+  struct GNUNET_IDENTITY_PROVIDER_Operation *op;
+  uint32_t r_id = ntohl (msg->id);
+  int32_t success;
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Processing revocation result.\n");
+
+
+  for (op = h->op_head; NULL != op; op = op->next)
+    if (op->r_id == r_id)
+      break;
+  if (NULL == op)
+    return;
+  success = ntohl (msg->success);
+  {
+    if (NULL != op->rvk_cb)
+    {
+      op->rvk_cb (op->cls,
+                  success,
+                  NULL);
+    }
+    GNUNET_CONTAINER_DLL_remove (h->op_head,
+                                 h->op_tail,
+                                 op);
+    GNUNET_free (op);
+    return;
+  }
+  GNUNET_assert (0);
+}
+
 
 
 /**
@@ -729,7 +776,7 @@ reconnect (struct GNUNET_IDENTITY_PROVIDER_Handle *h)
   struct GNUNET_MQ_MessageHandler handlers[] = {
     GNUNET_MQ_hd_fixed_size (attribute_store_response,
                              
GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_STORE_RESPONSE,
-                             struct AttributeStoreResponseMessage,
+                             struct AttributeStoreResultMessage,
                              h),
     GNUNET_MQ_hd_var_size (attribute_result,
                            
GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_RESULT,
@@ -743,6 +790,10 @@ reconnect (struct GNUNET_IDENTITY_PROVIDER_Handle *h)
                            
GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_CONSUME_TICKET_RESULT,
                            struct ConsumeTicketResultMessage,
                            h),
+    GNUNET_MQ_hd_fixed_size (revoke_ticket_result,
+                             
GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_REVOKE_TICKET_RESULT,
+                             struct RevokeTicketResultMessage,
+                             h),
     GNUNET_MQ_handler_end ()
   };
   struct GNUNET_IDENTITY_PROVIDER_Operation *op;
@@ -1077,10 +1128,10 @@ GNUNET_IDENTITY_PROVIDER_ticket_issue (struct 
GNUNET_IDENTITY_PROVIDER_Handle *h
  */
 struct GNUNET_IDENTITY_PROVIDER_Operation *
 GNUNET_IDENTITY_PROVIDER_ticket_consume (struct 
GNUNET_IDENTITY_PROVIDER_Handle *h,
-                                            const struct 
GNUNET_CRYPTO_EcdsaPrivateKey *identity,
-                                            const struct 
GNUNET_IDENTITY_PROVIDER_Ticket *ticket,
-                                            
GNUNET_IDENTITY_PROVIDER_AttributeResult cb,
-                                            void *cb_cls)
+                                         const struct 
GNUNET_CRYPTO_EcdsaPrivateKey *identity,
+                                         const struct 
GNUNET_IDENTITY_PROVIDER_Ticket *ticket,
+                                         
GNUNET_IDENTITY_PROVIDER_AttributeResult cb,
+                                         void *cb_cls)
 {
   struct GNUNET_IDENTITY_PROVIDER_Operation *op;
   struct ConsumeTicketMessage *ctm;
@@ -1280,6 +1331,50 @@ GNUNET_IDENTITY_PROVIDER_ticket_iteration_stop (struct 
GNUNET_IDENTITY_PROVIDER_
   GNUNET_free (it);
 }
 
+/**
+ * Revoked an issued ticket. The relying party will be unable to retrieve
+ * updated attributes.
+ *
+ * @param id the identity provider to use
+ * @param identity the issuing identity
+ * @param ticket the ticket to revoke
+ * @param cb the callback
+ * @param cb_cls the callback closure
+ * @return handle to abort the operation
+ */
+struct GNUNET_IDENTITY_PROVIDER_Operation *
+GNUNET_IDENTITY_PROVIDER_ticket_revoke (struct GNUNET_IDENTITY_PROVIDER_Handle 
*h,
+                                        const struct 
GNUNET_CRYPTO_EcdsaPrivateKey *identity,
+                                        const struct 
GNUNET_IDENTITY_PROVIDER_Ticket *ticket,
+                                        
GNUNET_IDENTITY_PROVIDER_ContinuationWithStatus cb,
+                                        void *cb_cls)
+{
+  struct GNUNET_IDENTITY_PROVIDER_Operation *op;
+  struct GNUNET_MQ_Envelope *env;
+  struct RevokeTicketMessage *msg;
+  uint32_t rid;
+
+  rid = h->r_id_gen++;
+  op = GNUNET_new (struct GNUNET_IDENTITY_PROVIDER_Operation);
+  op->h = h;
+  op->rvk_cb = cb;
+  op->cls = cb_cls;
+  op->r_id = rid;
+  GNUNET_CONTAINER_DLL_insert_tail (h->op_head,
+                                    h->op_tail,
+                                    op);
+  env = GNUNET_MQ_msg (msg,
+                       GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_REVOKE_TICKET);
+  msg->id = htonl (rid);
+  msg->identity = *identity;
+  if (NULL == h->mq)
+    op->env = env;
+  else
+    GNUNET_MQ_send (h->mq,
+                    env);
+  return op;
+}
+
 
 
 /* end of identity_provider_api.c */
diff --git a/src/include/gnunet_identity_provider_service.h 
b/src/include/gnunet_identity_provider_service.h
index d1b437128..fa4d4536c 100644
--- a/src/include/gnunet_identity_provider_service.h
+++ b/src/include/gnunet_identity_provider_service.h
@@ -326,7 +326,7 @@ GNUNET_IDENTITY_PROVIDER_ticket_issue (struct 
GNUNET_IDENTITY_PROVIDER_Handle *i
                                        GNUNET_IDENTITY_PROVIDER_TicketCallback 
cb,
                                        void *cb_cls);
 
-/** TODO
+/**
  * Revoked an issued ticket. The relying party will be unable to retrieve
  * updated attributes.
  *

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