Home | History | Annotate | Download | only in inet
      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 struct ts_label_s;
     78 extern	void ire_delete_host_redirects(ipaddr_t, ip_stack_t *);
     79 extern irb_t	*ire_get_bucket(ire_t *);
     80 extern uint_t ifindex_lookup(const struct sockaddr *, zoneid_t);
     81 extern int ipfil_sendpkt(const struct sockaddr *, mblk_t *, uint_t, zoneid_t);
     82 
     83 extern void  irb_refhold_rn(struct radix_node *);
     84 extern void  irb_refrele_rn(struct radix_node *);
     85 
     86 #endif /* _KERNEL */
     87 
     88 #ifdef	__cplusplus
     89 }
     90 #endif
     91 
     92 #endif	/* _INET_IP_FTABLE_H */
     93