- GNUNET_MQ_destroy (nh->mq);
- GNUNET_free (nh->reg);
- GNUNET_free (nh);
-}
-
-
-
-/**
- * Handle to auto-configuration in progress.
- */
-struct GNUNET_NAT_AutoHandle
-{
-
- /**
- * Configuration we use.
- */
- const struct GNUNET_CONFIGURATION_Handle *cfg;
-
- /**
- * Message queue for communicating with the NAT service.
- */
- struct GNUNET_MQ_Handle *mq;
-
- /**
- * Function called with the result from the autoconfiguration.
- */
- GNUNET_NAT_AutoResultCallback arc;
-
- /**
- * Closure for @e arc.
- */
- void *arc_cls;
-
-};
-
-
-/**
- * Converts `enum GNUNET_NAT_StatusCode` to string
- *
- * @param err error code to resolve to a string
- * @return point to a static string containing the error code
- */
-const char *
-GNUNET_NAT_status2string (enum GNUNET_NAT_StatusCode err)
-{
- switch (err)
- {
- case GNUNET_NAT_ERROR_SUCCESS:
- return _ ("Operation Successful");
- case GNUNET_NAT_ERROR_IPC_FAILURE:
- return _ ("IPC failure");
- case GNUNET_NAT_ERROR_INTERNAL_NETWORK_ERROR:
- return _ ("Failure in network subsystem, check permissions.");
- case GNUNET_NAT_ERROR_TIMEOUT:
- return _ ("Encountered timeout while performing operation");
- case GNUNET_NAT_ERROR_NOT_ONLINE:
- return _ ("detected that we are offline");
- case GNUNET_NAT_ERROR_UPNPC_NOT_FOUND:
- return _ ("`upnpc` command not found");
- case GNUNET_NAT_ERROR_UPNPC_FAILED:
- return _ ("Failed to run `upnpc` command");
- case GNUNET_NAT_ERROR_UPNPC_TIMEOUT:
- return _ ("`upnpc' command took too long, process killed");
- case GNUNET_NAT_ERROR_UPNPC_PORTMAP_FAILED:
- return _ ("`upnpc' command failed to establish port mapping");
- case GNUNET_NAT_ERROR_EXTERNAL_IP_UTILITY_NOT_FOUND:
- return _ ("`external-ip' command not found");
- case GNUNET_NAT_ERROR_EXTERNAL_IP_UTILITY_FAILED:
- return _ ("Failed to run `external-ip` command");
- case GNUNET_NAT_ERROR_EXTERNAL_IP_UTILITY_OUTPUT_INVALID:
- return _ ("`external-ip' command output invalid");
- case GNUNET_NAT_ERROR_EXTERNAL_IP_ADDRESS_INVALID:
- return _ ("no valid address was returned by `external-ip'");
- case GNUNET_NAT_ERROR_NO_VALID_IF_IP_COMBO:
- return _ ("Could not determine interface with internal/local network address");
- case GNUNET_NAT_ERROR_HELPER_NAT_SERVER_NOT_FOUND:
- return _ ("No functioning gnunet-helper-nat-server installation found");
- case GNUNET_NAT_ERROR_NAT_TEST_START_FAILED:
- return _ ("NAT test could not be initialized");
- case GNUNET_NAT_ERROR_NAT_TEST_TIMEOUT:
- return _ ("NAT test timeout reached");
- case GNUNET_NAT_ERROR_NAT_REGISTER_FAILED:
- return _ ("could not register NAT");
- case GNUNET_NAT_ERROR_HELPER_NAT_CLIENT_NOT_FOUND:
- return _ ("No working gnunet-helper-nat-client installation found");
- default:
- return "unknown status code";
- }
-}
-
-
-/**
- * Check result from autoconfiguration attempt.
- *
- * @param cls the `struct GNUNET_NAT_AutoHandle`
- * @param res the result
- * @return #GNUNET_OK if @a res is well-formed (always for now)
- */
-static int
-check_auto_result (void *cls,
- const struct GNUNET_NAT_AutoconfigResultMessage *res)
-{
- return GNUNET_OK;
-}
-
-
-/**
- * Handle result from autoconfiguration attempt.
- *
- * @param cls the `struct GNUNET_NAT_AutoHandle`
- * @param res the result
- */
-static void
-handle_auto_result (void *cls,
- const struct GNUNET_NAT_AutoconfigResultMessage *res)
-{
- struct GNUNET_NAT_AutoHandle *ah = cls;
- size_t left;
- struct GNUNET_CONFIGURATION_Handle *cfg;
- enum GNUNET_NAT_Type type
- = (enum GNUNET_NAT_Type) ntohl (res->type);
- enum GNUNET_NAT_StatusCode status
- = (enum GNUNET_NAT_StatusCode) ntohl (res->status_code);
-
- left = ntohs (res->header.size) - sizeof (*res);
- cfg = GNUNET_CONFIGURATION_create ();
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_deserialize (cfg,
- (const char *) &res[1],
- left,
- GNUNET_NO))
- {
- GNUNET_break (0);
- ah->arc (ah->arc_cls,
- NULL,
- GNUNET_NAT_ERROR_IPC_FAILURE,
- type);
- }
- else
- {
- ah->arc (ah->arc_cls,
- cfg,
- status,
- type);
- }
- GNUNET_CONFIGURATION_destroy (cfg);
- GNUNET_NAT_autoconfig_cancel (ah);
-}
-
-
-/**
- * Handle queue errors by reporting autoconfiguration failure.
- *
- * @param cls the `struct GNUNET_NAT_AutoHandle *`
- * @param error details about the error
- */
-static void
-ah_error_handler (void *cls,
- enum GNUNET_MQ_Error error)
-{
- struct GNUNET_NAT_AutoHandle *ah = cls;
-
- ah->arc (ah->arc_cls,
- NULL,
- GNUNET_NAT_ERROR_IPC_FAILURE,
- GNUNET_NAT_TYPE_UNKNOWN);
- GNUNET_NAT_autoconfig_cancel (ah);
-}
-
-
-/**
- * Start auto-configuration routine. The transport adapters should
- * be stopped while this function is called.
- *
- * @param cfg initial configuration
- * @param cb function to call with autoconfiguration result
- * @param cb_cls closure for @a cb
- * @return handle to cancel operation
- */
-struct GNUNET_NAT_AutoHandle *
-GNUNET_NAT_autoconfig_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
- GNUNET_NAT_AutoResultCallback cb,
- void *cb_cls)
-{
- struct GNUNET_NAT_AutoHandle *ah = GNUNET_new (struct GNUNET_NAT_AutoHandle);
- struct GNUNET_MQ_MessageHandler handlers[] = {
- GNUNET_MQ_hd_var_size (auto_result,
- GNUNET_MESSAGE_TYPE_NAT_AUTO_CFG_RESULT,
- struct GNUNET_NAT_AutoconfigResultMessage,
- ah),
- GNUNET_MQ_handler_end ()
- };
- struct GNUNET_MQ_Envelope *env;
- struct GNUNET_NAT_AutoconfigRequestMessage *req;
- char *buf;
- size_t size;
-
- buf = GNUNET_CONFIGURATION_serialize (cfg,
- &size);
- if (size > GNUNET_SERVER_MAX_MESSAGE_SIZE - sizeof (*req))