ipcpd: Revise internals of normal IPCP

This removes the RIB as a datastructure and CDAP as the protocol
between IPCPs. CDAP, the rib and related sources are deprecated. The
link-state protocol policy is udpated to use its own protocol based on
a simple broadcast strategy along a tree. The neighbors struct is
deprecated and moved to the library as a generic notifier component.

6 files changed, 12 insertions, 265 deletions

diff --git a/include/ouroboros/CMakeLists.txt b/include/ouroboros/CMakeLists.txt
index b6edac53..e94d5c6c 100644
--- a/include/ouroboros/CMakeLists.txt
+++ b/include/ouroboros/CMakeLists.txt
@@ -1,6 +1,5 @@
 set(HEADER_FILES
   cacep.h
-  cdap.h
   cdefs.h
   dev.h
   errno.h
@@ -8,7 +7,6 @@ set(HEADER_FILES
   fqueue.h
   ipcp.h
   irm.h
-  nsm.h
   proto.h
   qos.h)
 
diff --git a/include/ouroboros/cdap.h b/include/ouroboros/cdap.h
deleted file mode 100644
index 46ebca4b..00000000
--- a/include/ouroboros/cdap.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2017
- *
- * The Common Distributed Application Protocol
- *
- *    Dimitri Staessens <dimitri.staessens@ugent.be>
- *    Sander Vrijders   <sander.vrijders@ugent.be>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * version 2.1 as published by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., http://www.fsf.org/about/contact/.
- */
-
-#ifndef OUROBOROS_CDAP_H
-#define OUROBOROS_CDAP_H
-
-#include <ouroboros/cdefs.h>
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <unistd.h>
-
-#define F_SYNC 0x0001
-
-#define INVALID_CDAP_KEY -1
-#define CDAP_PROTO "CDAP"
-
-enum cdap_opcode {
-        CDAP_READ = 0,
-        CDAP_WRITE,
-        CDAP_START,
-        CDAP_STOP,
-        CDAP_CREATE,
-        CDAP_DELETE
-};
-
-struct cdap;
-
-typedef int32_t cdap_key_t;
-
-__BEGIN_DECLS
-
-struct cdap * cdap_create(void);
-
-int           cdap_destroy(struct cdap * instance);
-
-int           cdap_add_flow(struct cdap * instance,
-                            int           fd);
-
-int           cdap_del_flow(struct cdap * instance,
-                            int           fd);
-
-cdap_key_t *  cdap_request_send(struct cdap *    instance,
-                                enum cdap_opcode code,
-                                const char *     name,
-                                const void *     data,
-                                size_t           len,
-                                uint32_t         flags);
-
-int           cdap_reply_wait(struct cdap * instance,
-                              cdap_key_t    key,
-                              uint8_t **    data,
-                              size_t *      len);
-
-cdap_key_t    cdap_request_wait(struct cdap *      instance,
-                                enum cdap_opcode * opcode,
-                                char **            name,
-                                uint8_t **         data,
-                                size_t *           len,
-                                uint32_t *         flags);
-
-int           cdap_reply_send(struct cdap * instance,
-                              cdap_key_t    key,
-                              int           result,
-                              const void *  data,
-                              size_t        len);
-
-__END_DECLS
-
-#endif /* OUROBOROS_CDAP_H */
diff --git a/include/ouroboros/nsm.h b/include/ouroboros/notifier.h
index d89a2ee4..7a70f95f 100644
--- a/include/ouroboros/nsm.h
+++ b/include/ouroboros/notifier.h
@@ -1,7 +1,7 @@
 /*
  * Ouroboros - Copyright (C) 2016 - 2017
  *
- * The API to instruct the global Namespace Manager
+ * Notifier event system using callbacks
  *
  *    Dimitri Staessens <dimitri.staessens@ugent.be>
  *    Sander Vrijders   <sander.vrijders@ugent.be>
@@ -20,31 +20,21 @@
  * Foundation, Inc., http://www.fsf.org/about/contact/.
  */
 
-#ifndef OUROBOROS_NSM_H
-#define OUROBOROS_NSM_H
+#ifndef OUROBOROS_LIB_NOTIFIER_H
+#define OUROBOROS_LIB_NOTIFIER_H
 
-#include <ouroboros/cdefs.h>
+typedef void (* notifier_fn_t)(int          event,
+                               const void * o);
 
-#include <stdint.h>
-#include <unistd.h>
+int  notifier_init(void);
 
-__BEGIN_DECLS
+void notifier_fini(void);
 
-int    nsm_reg(char *  name,
-               char ** dafs,
-               size_t  dafs_size);
+void notifier_event(int          event,
+                    const void * o);
 
-int    nsm_unreg(char *  name,
-                 char ** dafs,
-                 size_t  dafs_size);
+int  notifier_reg(notifier_fn_t callback);
 
-/*
- * dafs is an out parameter
- * The amount of DAFs is returned
- */
-ssize_t nsm_resolve(char *  name,
-                    char ** dafs);
-
-__END_DECLS
+void notifier_unreg(notifier_fn_t callback);
 
-#endif
+#endif /* OUROBOROS_LIB_NOTIFIER_H */
diff --git a/include/ouroboros/rib.h b/include/ouroboros/rib.h
deleted file mode 100644
index 281a4f20..00000000
--- a/include/ouroboros/rib.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2017
- *
- * Resource Information Base
- *
- *    Dimitri Staessens <dimitri.staessens@ugent.be>
- *    Sander Vrijders   <sander.vrijders@ugent.be>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * version 2.1 as published by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., http://www.fsf.org/about/contact/.
- */
-
-#ifndef OUROBOROS_LIB_RIB_H
-#define OUROBOROS_LIB_RIB_H
-
-#include <sys/types.h>
-#include <stdint.h>
-#include <stdbool.h>
-
-#define RIB_ROOT ""
-
-#define PACK_HASH_ROOT  0x0001
-#define PACK_HASH_ALL   0x0002
-
-#define UNPACK_CREATE   0x0001
-
-int       rib_init(void);
-
-void      rib_fini(void);
-
-int       rib_add(const char * parent,
-                  const char * name);
-
-int       rib_del(char * path);
-
-ssize_t   rib_read(const char * path,
-                   void *       data,
-                   size_t       len);
-
-int       rib_write(const char * path,
-                    const void * data,
-                    size_t       len);
-
-int       rib_put(const char * path,
-                  void *       data,
-                  size_t       len);
-
-bool      rib_has(const char * path);
-
-ssize_t   rib_children(const char * path,
-                       char ***     children);
-
-char *    rib_path_append(char *       path,
-                          const char * name);
-
-char *    rib_name_gen(void * data,
-                       size_t len);
-
-ssize_t   rib_pack(const char * path,
-                   uint8_t **   buf,
-                   uint32_t     flags);
-
-int       rib_unpack(uint8_t * packed,
-                     size_t    len,
-                     uint32_t  flags);
-
-#endif /* OUROBOROS_LIB_RIB_H */
diff --git a/include/ouroboros/rqueue.h b/include/ouroboros/rqueue.h
deleted file mode 100644
index 601a4ab6..00000000
--- a/include/ouroboros/rqueue.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2017
- *
- * RIB event queues
- *
- *    Dimitri Staessens <dimitri.staessens@ugent.be>
- *    Sander Vrijders   <sander.vrijders@ugent.be>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * version 2.1 as published by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., http://www.fsf.org/about/contact/.
- */
-
-#ifndef OUROBOROS_RQUEUE_H
-#define OUROBOROS_RQUEUE_H
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <time.h>
-
-#define RO_READ    0x00000001
-#define RO_MODIFY  0x00000002
-#define RO_CREATE  0x00000004
-#define RO_DELETE  0x00000008
-#define RO_START   0x00000010
-#define RO_STOP    0x00000020
-
-#define RO_NO_OPS  0x00000000
-#define RO_ALL_OPS 0xFFFFFFFF
-
-struct ro_set;
-
-struct rqueue;
-
-typedef struct ro_set ro_set_t;
-typedef struct rqueue rqueue_t;
-
-ro_set_t *   ro_set_create(void);
-
-void         ro_set_destroy(ro_set_t * set);
-
-rqueue_t *   rqueue_create(void);
-
-int          rqueue_destroy(struct rqueue * rq);
-
-int          ro_set_zero(ro_set_t * set);
-
-int          ro_set_add(ro_set_t *   set,
-                        const char * path,
-                        int32_t      flags);
-
-int          ro_set_del(ro_set_t *   set,
-                        const char * path);
-
-int32_t      rqueue_next(rqueue_t * rq,
-                         char *     path);
-
-int          rib_event_wait(ro_set_t *              set,
-                            rqueue_t *              rq,
-                            const struct timespec * timeout);
-
-#endif /* OUROBOROS_RQUEUE_H */
diff --git a/include/ouroboros/wrap/ouroboros.i b/include/ouroboros/wrap/ouroboros.i
index ebda2453..db5e09f2 100644
--- a/include/ouroboros/wrap/ouroboros.i
+++ b/include/ouroboros/wrap/ouroboros.i
@@ -23,14 +23,12 @@
 %{
 #include "ouroboros/cdefs.h"
 #include "ouroboros/cacep.h"
-#include "ouroboros/cdap.h"
 #include "ouroboros/dev.h"
 #include "ouroboros/errno.h"
 #include "ouroboros/fccntl.h"
 #include "ouroboros/fqueue.h"
 #include "ouroboros/irm.h"
 #include "ouroboros/ipcp.h"
-#include "ouroboros/nsm.h"
 #include "ouroboros/qos.h"
 %}
 
@@ -38,12 +36,10 @@ typedef int pid_t;
 
 %include "ouroboros/cdefs.h"
 %include "ouroboros/cacep.h"
-%include "ouroboros/cdap.h"
 %include "ouroboros/dev.h"
 %include "ouroboros/errno.h"
 %include "ouroboros/fccntl.h"
 %include "ouroboros/fqueue.h"
 %include "ouroboros/irm.h"
 %include "ouroboros/ipcp.h"
-%include "ouroboros/nsm.h"
 %include "ouroboros/qos.h"