include/inet/ip_ftable.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _INET_IP_FTABLE_H
  28 #define _INET_IP_FTABLE_H
  29
  30 #ifdef  __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 #ifdef  _KERNEL
  35
  36 #include <net/radix.h>
  37 #include <inet/common.h>
  38 #include <inet/ip.h>
  39
  40 struct rt_entry {
  41         struct  radix_node rt_nodes[2]; /* tree glue, and other values */
  42         /*
  43          * struct rt_entry must begin with a struct radix_node (or two!)
  44          * to a 'struct rt_entry *'
  45          */
  46         struct rt_sockaddr rt_dst;
  47         /*
  48          * multiple routes to same dest/mask via varying gate/ifp are stored
  49          * in the rt_irb bucket.
  50          */
  51         irb_t rt_irb;
  52 };
  53
  54 /*
  55  * vehicle for passing args through rn_walktree
  56  *
  57  * The comment below (and for other netstack_t references) refers
  58  * to the fact that we only do netstack_hold in particular cases,
  59  * such as the references from open endpoints (ill_t and conn_t's
  60  * pointers). Internally within IP we rely on IP's ability to cleanup e.g.
  61  * ire_t's when an ill goes away.
  62  */
  63 struct rtfuncarg {
  64         pfv_t rt_func;
  65         char *rt_arg;
  66         uint_t rt_match_flags;
  67         uint_t rt_ire_type;
  68         ill_t  *rt_ill;
  69         zoneid_t rt_zoneid;
  70         ip_stack_t *rt_ipst;    /* Does not have a netstack_hold */
  71 };
  72 int rtfunc(struct radix_node *, void *);
  73
  74 typedef struct rt_entry rt_t;
  75 typedef struct rtfuncarg rtf_t;
  76
  77 extern  void ire_delete_host_redirects(ipaddr_t, ip_stack_t *);
  78 extern irb_t    *ire_get_bucket(ire_t *);
  79 extern uint_t ifindex_lookup(const struct sockaddr *, zoneid_t);
  80 extern int ipfil_sendpkt(const struct sockaddr *, mblk_t *, uint_t, zoneid_t);
  81
  82 extern void  irb_refhold_rn(struct radix_node *);
  83 extern void  irb_refrele_rn(struct radix_node *);
  84
  85 #endif /* _KERNEL */
  86
  87 #ifdef  __cplusplus
  88 }
  89 #endif
  90
  91 #endif  /* _INET_IP_FTABLE_H */