lib, irmd, ipcpd: Add name querying to IPCPs

This adds the ability to query IPCPs if a name can be reached through
them, e.g. if a name is available in a DIF. This means that in the
shim-udp a DNS query is performed, in the shim-eth-llc an ARP-like
query has been added, in the local a check is done to see if the name
is registered, and in the normal currently no application is reachable
through it.

1 files changed, 4 insertions, 41 deletions

diff --git a/src/irmd/registry.c b/src/irmd/registry.c
index 9442f3db..07ec370c 100644
--- a/src/irmd/registry.c
+++ b/src/irmd/registry.c
@@ -20,15 +20,16 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include "registry.h"
-#include "utils.h"
-
 #define OUROBOROS_PREFIX "registry"
 
+#include <ouroboros/config.h>
 #include <ouroboros/errno.h>
 #include <ouroboros/logs.h>
 #include <ouroboros/irm_config.h>
 
+#include "registry.h"
+#include "utils.h"
+
 #include <stdlib.h>
 #include <stdbool.h>
 #include <string.h>
@@ -405,44 +406,6 @@ void registry_del_api(struct list_head * registry,
         return;
 }
 
-char * registry_get_dif_for_dst(struct list_head * registry,
-                                char *             dst_name)
-{
-        struct list_head * pos = NULL;
-        struct reg_entry * re =
-                registry_get_entry(registry, dst_name);
-
-        if (re != NULL) { /* local AP */
-                list_for_each(pos, &re->difs) {
-                        struct reg_dif  * rd =
-                                list_entry(pos, struct reg_dif, next);
-                        if (rd->type == IPCP_LOCAL)
-                                return rd->dif_name;
-                }
-
-                list_for_each(pos, &re->difs) {
-                        struct reg_dif * rd =
-                                list_entry(pos, struct reg_dif, next);
-                        if (rd->type == IPCP_NORMAL)
-                                return rd->dif_name;
-                }
-
-                list_for_each(pos, &re->difs) {
-                        struct reg_dif * rd =
-                                list_entry(pos, struct reg_dif, next);
-                        if (rd->type == IPCP_SHIM_UDP)
-                                return rd->dif_name;
-                }
-
-                LOG_DBG("Could not find DIF for %s.", dst_name);
-
-                return NULL;
-        } else {
-                LOG_DBG("No local ap %s found.", dst_name);
-                return NULL;
-        }
-}
-
 int registry_add_name_to_dif(struct list_head * registry,
                              char *             name,
                              char *             dif_name,