Commit IPMP changes

*** 18,27 ****
--- 18,28 ----
   *
   * 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
*** 34,43 ****
--- 35,46 ----
  #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"
*** 189,204 ****
--- 192,224 ----
          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
*** 268,277 ****
--- 288,301 ----
                              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,