ip_ftable.h revision 4972:b6da5df14183 
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 2007 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#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36#ifdef 	_KERNEL
37
38#include <net/radix.h>
39#include <inet/common.h>
40#include <inet/ip.h>
41
42struct rt_entry {
43	struct	radix_node rt_nodes[2];	/* tree glue, and other values */
44	/*
45	 * struct rt_entry must begin with a struct radix_node (or two!)
46	 * to a 'struct rt_entry *'
47	 */
48	struct rt_sockaddr rt_dst;
49	/*
50	 * multiple routes to same dest/mask via varying gate/ifp are stored
51	 * in the rt_irb bucket.
52	 */
53	irb_t rt_irb;
54};
55
56/*
57 * vehicle for passing args through rn_walktree
58 *
59 * The comment below (and for other netstack_t references) refers
60 * to the fact that we only do netstack_hold in particular cases,
61 * such as the references from open streams (ill_t and conn_t's
62 * pointers). Internally within IP we rely on IP's ability to cleanup e.g.
63 * ire_t's when an ill goes away.
64 */
65struct rtfuncarg {
66	pfv_t rt_func;
67	char *rt_arg;
68	uint_t rt_match_flags;
69	uint_t rt_ire_type;
70	ill_t  *rt_ill;
71	zoneid_t rt_zoneid;
72	ip_stack_t *rt_ipst;   	/* Does not have a netstack_hold */
73};
74int rtfunc(struct radix_node *, void *);
75
76typedef struct rt_entry rt_t;
77typedef struct rtfuncarg rtf_t;
78
79struct ts_label_s;
80extern	ire_t	*ire_ftable_lookup(ipaddr_t, ipaddr_t, ipaddr_t, int,
81    const ipif_t *, ire_t **, zoneid_t, uint32_t,
82    const struct ts_label_s *, int, ip_stack_t *);
83extern	ire_t *ire_lookup_multi(ipaddr_t, zoneid_t, ip_stack_t *);
84extern	ire_t *ipif_lookup_multi_ire(ipif_t *, ipaddr_t);
85extern	void ire_delete_host_redirects(ipaddr_t, ip_stack_t *);
86extern	ire_t *ire_ihandle_lookup_onlink(ire_t *);
87extern	ire_t *ire_forward(ipaddr_t, boolean_t *, ire_t *, ire_t *,
88    const struct ts_label_s *, ip_stack_t *);
89extern irb_t	*ire_get_bucket(ire_t *);
90extern uint_t ifindex_lookup(const struct sockaddr *, zoneid_t);
91extern int ipfil_sendpkt(const struct sockaddr *, mblk_t *, uint_t, zoneid_t);
92
93extern void  irb_refhold_rn(struct radix_node *);
94extern void  irb_refrele_rn(struct radix_node *);
95
96#endif /* _KERNEL */
97
98#ifdef	__cplusplus
99}
100#endif
101
102#endif	/* _INET_IP_FTABLE_H */
103