* @brief PSYCstore service
* @author Gabor X Toth
* @author Christian Grothoff
- *
- * The purpose of this service is to manage private keys that
- * represent the various egos/pseudonyms/identities of a GNUnet user.
- *
*/
+
+#include <inttypes.h>
+
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_constants.h"
}
-/**
+/**
* Send a result code back to the client.
*
- * @param client Client that should receive the result code.
- * @param result_code Code to transmit.
- * @param op_id Operation ID.
- * @param err_msg Error message to include (or NULL for none).
+ * @param client
+ * Client that should receive the result code.
+ * @param result_code
+ * Code to transmit.
+ * @param op_id
+ * Operation ID in network byte order.
+ * @param err_msg
+ * Error message to include (or NULL for none).
*/
static void
-send_result_code (struct GNUNET_SERVER_Client *client, uint32_t result_code,
- uint32_t op_id, const char *err_msg)
+send_result_code (struct GNUNET_SERVER_Client *client, uint64_t op_id,
+ int64_t result_code, const char *err_msg)
{
struct OperationResult *res;
- size_t err_len;
+ size_t err_size = 0;
- if (NULL == err_msg)
- err_len = 0;
- else
- err_len = strlen (err_msg) + 1;
- res = GNUNET_malloc (sizeof (struct OperationResult) + err_len);
+ if (NULL != err_msg)
+ err_size = strnlen (err_msg,
+ GNUNET_SERVER_MAX_MESSAGE_SIZE - sizeof (*res)) + 1;
+ res = GNUNET_malloc (sizeof (struct OperationResult) + err_size);
res->header.type = htons (GNUNET_MESSAGE_TYPE_PSYCSTORE_RESULT_CODE);
- res->header.size = htons (sizeof (struct OperationResult) + err_len);
- res->result_code = htonl (result_code);
+ res->header.size = htons (sizeof (struct OperationResult) + err_size);
+ res->result_code = GNUNET_htonll (result_code - INT64_MIN);
res->op_id = op_id;
- if (0 < err_len)
- memcpy (&res[1], err_msg, err_len);
+ if (0 < err_size)
+ {
+ memcpy (&res[1], err_msg, err_size);
+ ((char *) &res[1])[err_size - 1] = '\0';
+ }
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Sending result %d (%s) to client\n",
- (int) result_code,
- err_msg);
+ "Sending result to client: %" PRId64 " (%s)\n",
+ result_code, err_msg);
GNUNET_SERVER_notification_context_add (nc, client);
GNUNET_SERVER_notification_context_unicast (nc, client, &res->header,
GNUNET_NO);
}
+enum
+{
+ MEMBERSHIP_TEST_NOT_NEEDED = 0,
+ MEMBERSHIP_TEST_NEEDED = 1,
+ MEMBERSHIP_TEST_DONE = 2,
+} MessageMembershipTest;
+
+
struct SendClosure
{
struct GNUNET_SERVER_Client *client;
+
+ /**
+ * Channel's public key.
+ */
+ struct GNUNET_CRYPTO_EddsaPublicKey channel_key;
+
+ /**
+ * Slave's public key.
+ */
+ struct GNUNET_CRYPTO_EcdsaPublicKey slave_key;
+
+ /**
+ * Operation ID.
+ */
uint64_t op_id;
+
+ /**
+ * Membership test result.
+ */
+ int membership_test_result;
+
+ /**
+ * Do membership test with @a slave_key before returning fragment?
+ * @see enum MessageMembershipTest
+ */
+ uint8_t membership_test;
};
{
struct SendClosure *sc = cls;
struct FragmentResult *res;
+
+ if (MEMBERSHIP_TEST_NEEDED == sc->membership_test)
+ {
+ sc->membership_test = MEMBERSHIP_TEST_DONE;
+ sc->membership_test_result
+ = db->membership_test (db->cls, &sc->channel_key, &sc->slave_key,
+ GNUNET_ntohll (msg->message_id));
+ switch (sc->membership_test_result)
+ {
+ case GNUNET_YES:
+ break;
+
+ case GNUNET_NO:
+ case GNUNET_SYSERR:
+ return GNUNET_NO;
+ }
+ }
+
size_t msg_size = ntohs (msg->header.size);
res = GNUNET_malloc (sizeof (struct FragmentResult) + msg_size);
GNUNET_SERVER_notification_context_unicast (nc, sc->client, &res->header,
GNUNET_NO);
GNUNET_free (res);
- return GNUNET_OK;
+ return GNUNET_YES;
}
struct StateResult *res;
size_t name_size = strlen (name) + 1;
+ /* FIXME: split up value into 64k chunks */
+
res = GNUNET_malloc (sizeof (struct StateResult) + name_size + value_size);
res->header.type = htons (GNUNET_MESSAGE_TYPE_PSYCSTORE_RESULT_STATE);
res->header.size = htons (sizeof (struct StateResult) + name_size + value_size);
res->op_id = sc->op_id;
res->name_size = htons (name_size);
memcpy (&res[1], name, name_size);
- memcpy ((void *) &res[1] + name_size, value, value_size);
+ memcpy ((char *) &res[1] + name_size, value, value_size);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Sending state variable %s to client\n", name);
GNUNET_SERVER_notification_context_add (nc, sc->client);
(const struct MembershipStoreRequest *) msg;
int ret = db->membership_store (db->cls, &req->channel_key, &req->slave_key,
- ntohl (req->did_join),
+ req->did_join,
GNUNET_ntohll (req->announced_at),
GNUNET_ntohll (req->effective_since),
GNUNET_ntohll (req->group_generation));
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to store membership information!\n"));
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
_("Failed to test membership!\n"));
}
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to store fragment!\n"));
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *msg)
{
- const struct FragmentGetRequest *req
- = (const struct FragmentGetRequest *) msg;
- struct SendClosure sc = { .op_id = req->op_id, .client = client };
+ const struct FragmentGetRequest *
+ req = (const struct FragmentGetRequest *) msg;
+ struct SendClosure
+ sc = { .op_id = req->op_id, .client = client,
+ .channel_key = req->channel_key, .slave_key = req->slave_key,
+ .membership_test = req->do_membership_test };
+
+ int64_t ret;
+ uint64_t ret_frags = 0;
+ uint64_t first_fragment_id = GNUNET_ntohll (req->first_fragment_id);
+ uint64_t last_fragment_id = GNUNET_ntohll (req->last_fragment_id);
+ uint64_t limit = GNUNET_ntohll (req->fragment_limit);
+
+ if (0 == limit)
+ ret = db->fragment_get (db->cls, &req->channel_key,
+ first_fragment_id, last_fragment_id,
+ &ret_frags, &send_fragment, &sc);
+ else
+ ret = db->fragment_get_latest (db->cls, &req->channel_key, limit,
+ &ret_frags, &send_fragment, &sc);
- int ret = db->fragment_get (db->cls, &req->channel_key,
- GNUNET_ntohll (req->fragment_id),
- &send_fragment, &sc);
switch (ret)
{
case GNUNET_YES:
case GNUNET_NO:
+ if (MEMBERSHIP_TEST_DONE == sc.membership_test)
+ {
+ switch (sc.membership_test_result)
+ {
+ case GNUNET_YES:
+ break;
+
+ case GNUNET_NO:
+ ret = GNUNET_PSYCSTORE_MEMBERSHIP_TEST_FAILED;
+ break;
+
+ case GNUNET_SYSERR:
+ ret = GNUNET_SYSERR;
+ break;
+ }
+ }
break;
default:
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to get fragment!\n"));
}
-
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, (ret < 0) ? ret : ret_frags, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *msg)
{
- const struct MessageGetRequest *req = (const struct MessageGetRequest *) msg;
- struct SendClosure sc = { .op_id = req->op_id, .client = client };
+ const struct MessageGetRequest *
+ req = (const struct MessageGetRequest *) msg;
+ struct SendClosure
+ sc = { .op_id = req->op_id, .client = client,
+ .channel_key = req->channel_key, .slave_key = req->slave_key,
+ .membership_test = req->do_membership_test };
+
+ int64_t ret;
uint64_t ret_frags = 0;
- int64_t ret = db->message_get (db->cls, &req->channel_key,
- GNUNET_ntohll (req->message_id),
- &ret_frags, &send_fragment, &sc);
+ uint64_t first_message_id = GNUNET_ntohll (req->first_message_id);
+ uint64_t last_message_id = GNUNET_ntohll (req->last_message_id);
+ uint64_t limit = GNUNET_ntohll (req->message_limit);
+
+ if (0 == limit)
+ ret = db->message_get (db->cls, &req->channel_key,
+ first_message_id, last_message_id,
+ &ret_frags, &send_fragment, &sc);
+ else
+ ret = db->message_get_latest (db->cls, &req->channel_key, limit,
+ &ret_frags, &send_fragment, &sc);
+
switch (ret)
{
case GNUNET_YES:
case GNUNET_NO:
break;
default:
- ret_frags = ret;
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to get message!\n"));
}
- send_result_code (client, ret_frags, req->op_id, NULL);
+ send_result_code (client, req->op_id, (ret < 0) ? ret : ret_frags, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *msg)
{
- const struct MessageGetFragmentRequest *req =
- (const struct MessageGetFragmentRequest *) msg;
-
- struct SendClosure sc = { .op_id = req->op_id, .client = client };
+ const struct MessageGetFragmentRequest *
+ req = (const struct MessageGetFragmentRequest *) msg;
+ struct SendClosure
+ sc = { .op_id = req->op_id, .client = client,
+ .channel_key = req->channel_key, .slave_key = req->slave_key,
+ .membership_test = req->do_membership_test };
int ret = db->message_get_fragment (db->cls, &req->channel_key,
GNUNET_ntohll (req->message_id),
_("Failed to get message fragment!\n"));
}
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
static void
-handle_counters_get_master (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *msg)
+handle_counters_get (void *cls,
+ struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *msg)
{
const struct OperationRequest *req = (const struct OperationRequest *) msg;
- struct MasterCountersResult res = { {0} };
+ struct CountersResult res = { {0} };
- int ret = db->counters_get_master (db->cls, &req->channel_key,
- &res.fragment_id, &res.message_id,
- &res.group_generation);
+ int ret = db->counters_message_get (db->cls, &req->channel_key,
+ &res.max_fragment_id, &res.max_message_id,
+ &res.max_group_generation);
switch (ret)
{
- case GNUNET_YES:
+ case GNUNET_OK:
+ ret = db->counters_state_get (db->cls, &req->channel_key,
+ &res.max_state_message_id);
case GNUNET_NO:
break;
default:
_("Failed to get master counters!\n"));
}
- res.header.type
- = htons (GNUNET_MESSAGE_TYPE_PSYCSTORE_RESULT_COUNTERS_MASTER);
+ res.header.type = htons (GNUNET_MESSAGE_TYPE_PSYCSTORE_RESULT_COUNTERS);
res.header.size = htons (sizeof (res));
- res.result_code = htonl (ret);
+ res.result_code = htonl (ret - INT32_MIN);
res.op_id = req->op_id;
- res.fragment_id = GNUNET_htonll (res.fragment_id);
- res.message_id = GNUNET_htonll (res.message_id);
- res.group_generation = GNUNET_htonll (res.group_generation);
-
- GNUNET_SERVER_notification_context_add (nc, client);
- GNUNET_SERVER_notification_context_unicast (nc, client, &res.header,
- GNUNET_NO);
-
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-static void
-handle_counters_get_slave (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *msg)
-{
- const struct OperationRequest *req = (const struct OperationRequest *) msg;
- struct SlaveCountersResult res = { {0} };
-
- int ret = db->counters_get_slave (db->cls, &req->channel_key,
- &res.max_known_msg_id);
-
- switch (ret)
- {
- case GNUNET_YES:
- case GNUNET_NO:
- break;
- default:
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Failed to get slave counters!\n"));
- }
-
- res.header.type
- = htons (GNUNET_MESSAGE_TYPE_PSYCSTORE_RESULT_COUNTERS_SLAVE);
- res.header.size = htons (sizeof (res));
- res.result_code = htonl (ret);
- res.op_id = req->op_id;
- res.max_known_msg_id = GNUNET_htonll (res.max_known_msg_id);
+ res.max_fragment_id = GNUNET_htonll (res.max_fragment_id);
+ res.max_message_id = GNUNET_htonll (res.max_message_id);
+ res.max_group_generation = GNUNET_htonll (res.max_group_generation);
+ res.max_state_message_id = GNUNET_htonll (res.max_state_message_id);
GNUNET_SERVER_notification_context_add (nc, client);
GNUNET_SERVER_notification_context_unicast (nc, client, &res.header,
_("Failed to end modifying state!\n"));
}
}
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
_("Failed to end synchronizing state!\n"));
}
}
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to reset state!\n"));
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to reset state!\n"));
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
_("Failed to get state variable!\n"));
}
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
_("Failed to get state variable!\n"));
}
- send_result_code (client, ret, req->op_id, NULL);
+ send_result_code (client, req->op_id, ret, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
/**
- * Handle PSYCstore clients.
+ * Initialize the PSYCstore service.
*
- * @param cls closure
- * @param server the initialized server
- * @param c configuration to use
+ * @param cls Closure.
+ * @param server The initialized server.
+ * @param c Configuration to use.
*/
static void
-run (void *cls,
- struct GNUNET_SERVER_Handle *server,
+run (void *cls, struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *c)
{
static const struct GNUNET_SERVER_MessageHandler handlers[] = {
GNUNET_MESSAGE_TYPE_PSYCSTORE_MESSAGE_GET_FRAGMENT,
sizeof (struct MessageGetFragmentRequest) },
- { &handle_counters_get_master, NULL,
- GNUNET_MESSAGE_TYPE_PSYCSTORE_COUNTERS_GET_MASTER,
- sizeof (struct OperationRequest) },
-
- { &handle_counters_get_slave, NULL,
- GNUNET_MESSAGE_TYPE_PSYCSTORE_COUNTERS_GET_SLAVE,
+ { &handle_counters_get, NULL,
+ GNUNET_MESSAGE_TYPE_PSYCSTORE_COUNTERS_GET,
sizeof (struct OperationRequest) },
{ &handle_state_modify, NULL,
/**
- * The main function for the network size estimation service.
+ * The main function for the service.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
projects / oweals / gnunet.git / blobdiff