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[gnunet] branch master updated: RECLAIM: automatically purge dangling re
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From: |
gnunet |
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Subject: |
[gnunet] branch master updated: RECLAIM: automatically purge dangling references |
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Date: |
Sat, 26 Dec 2020 06:16:36 +0100 |
This is an automated email from the git hooks/post-receive script.
martin-schanzenbach pushed a commit to branch master
in repository gnunet.
The following commit(s) were added to refs/heads/master by this push:
new 75a3a90fb RECLAIM: automatically purge dangling references
75a3a90fb is described below
commit 75a3a90fb765da872383b8f85b2d4087186dc3db
Author: Martin Schanzenbach <schanzen@gnunet.org>
AuthorDate: Sat Dec 26 14:15:58 2020 +0900
RECLAIM: automatically purge dangling references
---
src/reclaim/gnunet-service-reclaim.c | 411 +++++++++++++++++++++++------------
1 file changed, 278 insertions(+), 133 deletions(-)
diff --git a/src/reclaim/gnunet-service-reclaim.c
b/src/reclaim/gnunet-service-reclaim.c
index 5614f05db..913b667b7 100644
--- a/src/reclaim/gnunet-service-reclaim.c
+++ b/src/reclaim/gnunet-service-reclaim.c
@@ -299,6 +299,16 @@ struct AttributeDeleteHandle
*/
struct TicketRecordsEntry *tickets_to_update_tail;
+ /**
+ * Existing attributes
+ */
+ struct GNUNET_RECLAIM_AttributeList *existing_attributes;
+
+ /**
+ * Existing credentials
+ */
+ struct GNUNET_RECLAIM_CredentialList *existing_credentials;
+
/**
* Attribute label
*/
@@ -490,6 +500,10 @@ cleanup_adh (struct AttributeDeleteHandle *adh)
GNUNET_free (adh->claim);
if (NULL != adh->credential)
GNUNET_free (adh->credential);
+ if (NULL != adh->existing_credentials)
+ GNUNET_RECLAIM_credential_list_destroy (adh->existing_credentials);
+ if (NULL != adh->existing_attributes)
+ GNUNET_RECLAIM_attribute_list_destroy (adh->existing_attributes);
while (NULL != (le = adh->tickets_to_update_head))
{
GNUNET_CONTAINER_DLL_remove (adh->tickets_to_update_head,
@@ -1301,7 +1315,7 @@ send_delete_response (struct AttributeDeleteHandle *adh,
int32_t success)
* @param rd record data
*/
static void
-ticket_iter (void *cls,
+consistency_iter (void *cls,
const struct GNUNET_IDENTITY_PrivateKey *zone,
const char *label,
unsigned int rd_count,
@@ -1309,26 +1323,42 @@ ticket_iter (void *cls,
{
struct AttributeDeleteHandle *adh = cls;
struct TicketRecordsEntry *le;
- int has_changed = GNUNET_NO;
+ struct GNUNET_RECLAIM_AttributeListEntry *ale;
+ struct GNUNET_RECLAIM_CredentialListEntry *cle;
+ int is_ticket = GNUNET_NO;
for (int i = 0; i < rd_count; i++)
{
- if (GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF != rd[i].record_type)
- continue;
- if (adh->claim != NULL)
- if (GNUNET_YES != GNUNET_RECLAIM_id_is_equal (rd[i].data,
- &adh->claim->id))
- continue;
- if (adh->credential != NULL)
- if (GNUNET_YES != GNUNET_RECLAIM_id_is_equal (rd[i].data,
- &adh->credential->id))
- continue;
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Attribute to delete found (%s)\n",
- adh->label);
- has_changed = GNUNET_YES;
- break;
+ switch (rd[i].record_type) {
+ case GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE:
+ ale = GNUNET_new (struct GNUNET_RECLAIM_AttributeListEntry);
+ GNUNET_RECLAIM_attribute_deserialize (rd[i].data,
+ rd[i].data_size,
+ &ale->attribute);
+ GNUNET_CONTAINER_DLL_insert (adh->existing_attributes->list_head,
+ adh->existing_attributes->list_tail,
+ ale);
+ break;
+ case GNUNET_GNSRECORD_TYPE_RECLAIM_CREDENTIAL:
+ cle = GNUNET_new (struct GNUNET_RECLAIM_CredentialListEntry);
+ cle->credential = GNUNET_RECLAIM_credential_deserialize (rd[i].data,
+
rd[i].data_size);
+ GNUNET_CONTAINER_DLL_insert (adh->existing_credentials->list_head,
+ adh->existing_credentials->list_tail,
+ cle);
+ break;
+ case GNUNET_GNSRECORD_TYPE_RECLAIM_TICKET:
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Ticket to delete found (%s)\n",
+ label);
+ is_ticket = GNUNET_YES;
+ break;
+ default:
+ break;
+ }
+ if (GNUNET_YES == is_ticket)
+ break;
}
- if (GNUNET_YES == has_changed)
+ if (GNUNET_YES == is_ticket)
{
le = GNUNET_new (struct TicketRecordsEntry);
le->data_size = GNUNET_GNSRECORD_records_get_size (rd_count, rd);
@@ -1384,15 +1414,12 @@ update_tickets (void *cls)
if (NULL == adh->tickets_to_update_head)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Finished updating tickets, success\n");
send_delete_response (adh, GNUNET_OK);
cleanup_adh (adh);
return;
}
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Updating %s\n",
- adh->tickets_to_update_head->label);
le = adh->tickets_to_update_head;
GNUNET_CONTAINER_DLL_remove (adh->tickets_to_update_head,
adh->tickets_to_update_tail,
@@ -1411,21 +1438,53 @@ update_tickets (void *cls)
return;
}
int j = 0;
- for (int i = 0; i < le->rd_count; i++)
+ int i = 0;
+ struct GNUNET_RECLAIM_AttributeListEntry *ale;
+ struct GNUNET_RECLAIM_CredentialListEntry *cle;
+ struct GNUNET_RECLAIM_Presentation *presentation;
+ for (i = 0; i < le->rd_count; i++)
{
- if (adh->claim != NULL)
- if ((GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF == rd[i].record_type)
- && (GNUNET_YES == GNUNET_RECLAIM_id_is_equal (rd[i].data,
- &adh->claim->id)))
- continue;
- if (adh->credential != NULL)
- if ((GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF == rd[i].record_type)
- && (GNUNET_YES == GNUNET_RECLAIM_id_is_equal (rd[i].data,
- &adh->credential->id)))
- continue;
- rd_new[j] = rd[i];
- j++;
+ switch (rd[i].record_type) {
+ case GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF:
+ for (ale = adh->existing_attributes->list_head; NULL != ale; ale =
ale->next) {
+ if (GNUNET_YES == GNUNET_RECLAIM_id_is_equal (rd[i].data,
+ &ale->attribute->id)) {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Found attribute %s, readding...\n",
+ ale->attribute->name);
+ rd_new[j] = rd[i];
+ j++;
+ break; //Found and added
+ }
+ }
+ break;
+ case GNUNET_GNSRECORD_TYPE_RECLAIM_PRESENTATION:
+ presentation = GNUNET_RECLAIM_presentation_deserialize (rd[i].data,
+
rd[i].data_size);
+ for (cle = adh->existing_credentials->list_head; NULL != cle; cle =
cle->next) {
+ if (GNUNET_YES == GNUNET_RECLAIM_id_is_equal
(&presentation->credential_id,
+ &cle->credential->id))
{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Found presentation for credential %s, readding...\n",
+ cle->credential->name);
+ rd_new[j] = rd[i];
+ j++;
+ break; //Found and added
+ }
+ }
+ GNUNET_free (presentation);
+ break;
+ case GNUNET_GNSRECORD_TYPE_RECLAIM_TICKET:
+ rd_new[j] = rd[i];
+ j++;
+ break; //Found and added
+ default:
+ GNUNET_break (0);
+ }
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Updating ticket with %d entries (%d before)...\n",
+ j, i);
adh->ns_qe = GNUNET_NAMESTORE_records_store (nsh,
&adh->identity,
le->label,
@@ -1438,6 +1497,90 @@ update_tickets (void *cls)
GNUNET_free (le);
}
+/**
+ * Delete all attributes which reference credentials
+ * that no longer exist
+ */
+static void
+purge_attributes (void *cls);;
+
+static void
+offending_attr_delete_cont (void *cls, int32_t success, const char *emsg)
+{
+ struct AttributeDeleteHandle *adh = cls;
+
+ adh->ns_qe = NULL;
+ if (GNUNET_SYSERR == success)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Error deleting attribute %s\n",
+ adh->label);
+ send_delete_response (adh, GNUNET_SYSERR);
+ cleanup_adh (adh);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Continuing consistency check...\n");
+ GNUNET_SCHEDULER_add_now (&purge_attributes, adh);
+}
+
+
+
+/**
+ * Delete all attributes which reference credentials
+ * that no longer exist
+ */
+static void
+purge_attributes (void *cls)
+{
+ struct AttributeDeleteHandle *adh = cls;
+ struct GNUNET_RECLAIM_AttributeListEntry *ale;
+ struct GNUNET_RECLAIM_CredentialListEntry *cle;
+
+ for (ale = adh->existing_attributes->list_head; NULL != ale; ale = ale->next)
+ {
+ if (GNUNET_YES ==
+ GNUNET_RECLAIM_id_is_zero (&ale->attribute->credential))
+ continue;
+
+ for (cle = adh->existing_credentials->list_head;
+ NULL != cle; cle = cle->next) {
+ if (GNUNET_YES !=
+ GNUNET_RECLAIM_id_is_equal (&cle->credential->id,
+ &ale->attribute->credential))
+ continue;
+ break;
+ }
+ if (NULL == cle) {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Found attribute with missing credential\n");
+ break;
+ }
+ }
+ if (NULL == ale) {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Attributes consistent, updating tickets.\n");
+ GNUNET_SCHEDULER_add_now (&update_tickets, adh);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Attributes inconsistent, deleting offending attribute.\n");
+ char *label
+ = GNUNET_STRINGS_data_to_string_alloc (&ale->attribute->id,
+ sizeof(ale->attribute->id));
+
+ adh->ns_qe = GNUNET_NAMESTORE_records_store (nsh,
+ &adh->identity,
+ label,
+ 0,
+ NULL,
+ &offending_attr_delete_cont,
+ adh);
+ GNUNET_CONTAINER_DLL_remove (adh->existing_attributes->list_head,
+ adh->existing_attributes->list_tail,
+ ale);
+ GNUNET_free (ale);
+ GNUNET_free (label);
+}
/**
* Done collecting affected tickets, start updating.
@@ -1445,11 +1588,11 @@ update_tickets (void *cls)
* @param cls our attribute deletion handle
*/
static void
-ticket_iter_fin (void *cls)
+consistency_iter_fin (void *cls)
{
struct AttributeDeleteHandle *adh = cls;
adh->ns_it = NULL;
- GNUNET_SCHEDULER_add_now (&update_tickets, adh);
+ GNUNET_SCHEDULER_add_now (&purge_attributes, adh);
}
@@ -1459,14 +1602,13 @@ ticket_iter_fin (void *cls)
* @param cls our attribute deletion handle
*/
static void
-ticket_iter_err (void *cls)
+consistency_iter_err (void *cls)
{
struct AttributeDeleteHandle *adh = cls;
adh->ns_it = NULL;
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Namestore error on delete %s\n",
- adh->label);
+ "Namestore error on consistency check\n");
send_delete_response (adh, GNUNET_SYSERR);
cleanup_adh (adh);
}
@@ -1479,17 +1621,20 @@ ticket_iter_err (void *cls)
* @param cls attribute deletion handle
*/
static void
-start_ticket_update (void *cls)
+start_consistency_update (void *cls)
{
struct AttributeDeleteHandle *adh = cls;
+ adh->existing_attributes = GNUNET_new (struct GNUNET_RECLAIM_AttributeList);
+ adh->existing_credentials = GNUNET_new (struct
GNUNET_RECLAIM_CredentialList);
+
adh->ns_it = GNUNET_NAMESTORE_zone_iteration_start (nsh,
&adh->identity,
- &ticket_iter_err,
+ &consistency_iter_err,
adh,
- &ticket_iter,
+ &consistency_iter,
adh,
- &ticket_iter_fin,
+ &consistency_iter_fin,
adh);
}
@@ -1517,7 +1662,7 @@ attr_delete_cont (void *cls, int32_t success, const char
*emsg)
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating tickets...\n");
- GNUNET_SCHEDULER_add_now (&start_ticket_update, adh);
+ GNUNET_SCHEDULER_add_now (&start_consistency_update, adh);
}
@@ -1586,12 +1731,12 @@ handle_attribute_delete_message (void *cls,
/**
- * Credential deleted callback
- *
- * @param cls our handle
- * @param success success status
- * @param emsg error message (NULL if success=GNUNET_OK)
- */
+ * Credential deleted callback
+ *
+ * @param cls our handle
+ * @param success success status
+ * @param emsg error message (NULL if success=GNUNET_OK)
+ */
static void
cred_delete_cont (void *cls, int32_t success, const char *emsg)
{
@@ -1608,7 +1753,7 @@ cred_delete_cont (void *cls, int32_t success, const char
*emsg)
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating tickets...\n");
- GNUNET_SCHEDULER_add_now (&start_ticket_update, adh);
+ GNUNET_SCHEDULER_add_now (&start_consistency_update, adh);
}
@@ -1642,7 +1787,7 @@ check_credential_delete_message (void *cls,
*/
static void
handle_credential_delete_message (void *cls,
- const struct AttributeDeleteMessage *dam)
+ const struct AttributeDeleteMessage *dam)
{
struct AttributeDeleteHandle *adh;
struct IdpClient *idp = cls;
@@ -1676,8 +1821,8 @@ handle_credential_delete_message (void *cls,
/*************************************************
-* Attrubute iteration
-*************************************************/
+ * Attrubute iteration
+ *************************************************/
/**
@@ -1860,8 +2005,8 @@ handle_iteration_next (void *cls,
/*************************************************
-* Credential iteration
-*************************************************/
+ * Credential iteration
+ *************************************************/
/**
@@ -2050,8 +2195,8 @@ handle_credential_iteration_next (void *cls,
/******************************************************
-* Ticket iteration
-******************************************************/
+ * Ticket iteration
+ ******************************************************/
/**
* Got a ticket. Return to client
@@ -2094,8 +2239,8 @@ ticket_iter_cb (void *cls, struct GNUNET_RECLAIM_Ticket
*ticket)
*/
static void
handle_ticket_iteration_start (
- void *cls,
- const struct TicketIterationStartMessage *tis_msg)
+ void *cls,
+ const struct TicketIterationStartMessage
*tis_msg)
{
struct IdpClient *client = cls;
struct TicketIteration *ti;
@@ -2267,76 +2412,76 @@ client_connect_cb (void *cls,
* Define "main" method using service macro.
*/
GNUNET_SERVICE_MAIN (
- "reclaim",
- GNUNET_SERVICE_OPTION_NONE,
- &run,
- &client_connect_cb,
- &client_disconnect_cb,
- NULL,
- GNUNET_MQ_hd_var_size (attribute_store_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_STORE,
- struct AttributeStoreMessage,
- NULL),
- GNUNET_MQ_hd_var_size (credential_store_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_STORE,
- struct AttributeStoreMessage,
- NULL),
- GNUNET_MQ_hd_var_size (attribute_delete_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_DELETE,
- struct AttributeDeleteMessage,
- NULL),
- GNUNET_MQ_hd_var_size (credential_delete_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_DELETE,
- struct AttributeDeleteMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (iteration_start,
-
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_ITERATION_START,
- struct AttributeIterationStartMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (iteration_next,
-
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_ITERATION_NEXT,
- struct AttributeIterationNextMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (iteration_stop,
-
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_ITERATION_STOP,
- struct AttributeIterationStopMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (credential_iteration_start,
-
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_ITERATION_START,
- struct CredentialIterationStartMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (credential_iteration_next,
-
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_ITERATION_NEXT,
- struct CredentialIterationNextMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (credential_iteration_stop,
-
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_ITERATION_STOP,
- struct CredentialIterationStopMessage,
- NULL),
-
- GNUNET_MQ_hd_var_size (issue_ticket_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_ISSUE_TICKET,
- struct IssueTicketMessage,
- NULL),
- GNUNET_MQ_hd_var_size (consume_ticket_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_CONSUME_TICKET,
- struct ConsumeTicketMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (ticket_iteration_start,
- GNUNET_MESSAGE_TYPE_RECLAIM_TICKET_ITERATION_START,
- struct TicketIterationStartMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (ticket_iteration_next,
- GNUNET_MESSAGE_TYPE_RECLAIM_TICKET_ITERATION_NEXT,
- struct TicketIterationNextMessage,
- NULL),
- GNUNET_MQ_hd_fixed_size (ticket_iteration_stop,
- GNUNET_MESSAGE_TYPE_RECLAIM_TICKET_ITERATION_STOP,
- struct TicketIterationStopMessage,
- NULL),
- GNUNET_MQ_hd_var_size (revoke_ticket_message,
- GNUNET_MESSAGE_TYPE_RECLAIM_REVOKE_TICKET,
- struct RevokeTicketMessage,
- NULL),
- GNUNET_MQ_handler_end ());
+ "reclaim",
+ GNUNET_SERVICE_OPTION_NONE,
+ &run,
+ &client_connect_cb,
+ &client_disconnect_cb,
+ NULL,
+ GNUNET_MQ_hd_var_size (attribute_store_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_STORE,
+ struct AttributeStoreMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (credential_store_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_STORE,
+ struct AttributeStoreMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (attribute_delete_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_DELETE,
+ struct AttributeDeleteMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (credential_delete_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_DELETE,
+ struct AttributeDeleteMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (iteration_start,
+
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_ITERATION_START,
+ struct
AttributeIterationStartMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (iteration_next,
+
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_ITERATION_NEXT,
+ struct
AttributeIterationNextMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (iteration_stop,
+
GNUNET_MESSAGE_TYPE_RECLAIM_ATTRIBUTE_ITERATION_STOP,
+ struct
AttributeIterationStopMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (credential_iteration_start,
+
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_ITERATION_START,
+ struct
CredentialIterationStartMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (credential_iteration_next,
+
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_ITERATION_NEXT,
+ struct
CredentialIterationNextMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (credential_iteration_stop,
+
GNUNET_MESSAGE_TYPE_RECLAIM_CREDENTIAL_ITERATION_STOP,
+ struct
CredentialIterationStopMessage,
+ NULL),
+
+ GNUNET_MQ_hd_var_size (issue_ticket_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_ISSUE_TICKET,
+ struct IssueTicketMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (consume_ticket_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_CONSUME_TICKET,
+ struct ConsumeTicketMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (ticket_iteration_start,
+
GNUNET_MESSAGE_TYPE_RECLAIM_TICKET_ITERATION_START,
+ struct
TicketIterationStartMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (ticket_iteration_next,
+
GNUNET_MESSAGE_TYPE_RECLAIM_TICKET_ITERATION_NEXT,
+ struct
TicketIterationNextMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (ticket_iteration_stop,
+
GNUNET_MESSAGE_TYPE_RECLAIM_TICKET_ITERATION_STOP,
+ struct
TicketIterationStopMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (revoke_ticket_message,
+
GNUNET_MESSAGE_TYPE_RECLAIM_REVOKE_TICKET,
+ struct RevokeTicketMessage,
+ NULL),
+ GNUNET_MQ_handler_end ());
/* end of gnunet-service-reclaim.c */
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