Commit IPMP changes

@@ -18,10 +18,11 @@
  *
  * CDDL HEADER END
  */
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2013 Nexenta Systems, Inc. All rights reserved.
  */
 #ifndef _LIBIPADM_H
 #define _LIBIPADM_H
 
 #ifdef  __cplusplus

@@ -34,10 +35,12 @@
 #include <netdb.h>
 #include <ifaddrs.h>
 #include <libnvpair.h>
 #include <netinet/tcp.h>
 #include <sys/stropts.h>
+#include <sys/list.h>
+#include <stddef.h>
 
 #define IPADM_AOBJ_USTRSIZ      32
 #define IPADM_AOBJSIZ           (LIFNAMSIZ + IPADM_AOBJ_USTRSIZ)
 #define MAXPROPVALLEN           512
 #define LOOPBACK_IF             "lo0"

@@ -189,16 +192,33 @@
         IFIS_FAILED,            /* Interface has failed. */
         IFIS_OFFLINE,           /* Interface has been offlined */
         IFIS_DISABLED           /* Interface has been disabled. */
 } ipadm_if_state_t;
 
+typedef list_t ipadm_ipmp_members_t;
+
+typedef struct {
+    list_node_t node;
+    char if_name[LIFNAMSIZ];
+} ipadm_ipmp_member_t;
+
+typedef enum {
+    IPADM_IF_CLASS_REGULAR,
+    IPADM_IF_CLASS_IPMP,
+    IPADM_IF_CLASS_VIRTUAL,
+    IPADM_IF_CLASS_UNKNOWN
+} ipadm_if_class_t;
+
 typedef struct ipadm_if_info_s {
         struct ipadm_if_info_s  *ifi_next;
         char                    ifi_name[LIFNAMSIZ];    /* interface name */
+        ipadm_if_class_t ifi_class; /* interface class */
         ipadm_if_state_t        ifi_state;              /* see above */
         uint_t                  ifi_cflags;             /* current flags */
         uint_t                  ifi_pflags;             /* persistent flags */
+        ipadm_ipmp_members_t    ifi_ipmp_cmembers; /* current IPMP group members */
+        ipadm_ipmp_members_t    ifi_ipmp_pmembers; /* persistent IPMP grp members */
 } ipadm_if_info_t;
 
 /* ipadm_if_info_t flags */
 #define IFIF_BROADCAST          0x00000001
 #define IFIF_MULTICAST          0x00000002

@@ -268,10 +288,14 @@
                             ipadm_if_info_t **, uint32_t, int64_t);
 extern void             ipadm_free_if_info(ipadm_if_info_t *);
 extern ipadm_status_t   ipadm_delete_if(ipadm_handle_t, const char *,
                             sa_family_t, uint32_t);
 extern void             ipadm_if_move(ipadm_handle_t, const char *);
+extern ipadm_status_t ipadm_add_ipmp_member(ipadm_handle_t, const char *,
+            const char *, uint32_t);
+extern ipadm_status_t ipadm_remove_ipmp_member(ipadm_handle_t, const char *,
+            const char *, uint32_t);
 
 /*
  * Address management functions
  */
 extern ipadm_status_t   ipadm_create_addr(ipadm_handle_t, ipadm_addrobj_t,