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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _INET_IP6_ASP_H
#define _INET_IP6_ASP_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <netinet/in.h>
#include <sys/types.h>
#include <inet/ip6.h>
/*
* The maximum size of the label, including NULL bytes following the
* label string. The implementation assumes that this value is 16.
*/
#define IP6_ASP_MAXLABELSIZE 16
typedef struct ip6_asp {
in6_addr_t ip6_asp_prefix;
in6_addr_t ip6_asp_mask;
/*
* ip6_asp_label must be on an 8 byte boundary because we cast
* them as (int64_t *) in order to compare them as two 64 bit
* integers rather than sixteen characters.
*/
union {
char iau_label_c[IP6_ASP_MAXLABELSIZE];
int64_t iau_label_i[IP6_ASP_MAXLABELSIZE / sizeof (int64_t)];
} ip6_asp_u;
uint32_t ip6_asp_precedence;
} ip6_asp_t;
#define ip6_asp_label ip6_asp_u.iau_label_c
#if defined(_SYSCALL32) && _LONG_LONG_ALIGNMENT_32 == 4
/*
* The ip6_asp structure as seen by a 64-bit kernel looking
* at a 32-bit process, where the 32-bit process uses 32-bit
* alignment for 64-bit quantities. Like i386 does :-)
*/
typedef struct ip6_asp32 {
in6_addr_t ip6_asp_prefix;
in6_addr_t ip6_asp_mask;
union {
char iau_label_c[IP6_ASP_MAXLABELSIZE];
int32_t iau_label_i[IP6_ASP_MAXLABELSIZE / sizeof (int32_t)];
} ip6_asp_u;
uint32_t ip6_asp_precedence;
} ip6_asp32_t;
#endif /* _SYSCALL32 && _LONG_LONG_ALIGNMENT_32 == 4 */
#define IP6_ASP_TABLE_REFHOLD(ipst) { \
ipst->ips_ip6_asp_refcnt++; \
ASSERT(ipst->ips_ip6_asp_refcnt != 0); \
}
#define IP6_ASP_TABLE_REFRELE(ipst) { \
mutex_enter(&ipst->ips_ip6_asp_lock); \
ASSERT(ipst->ips_ip6_asp_refcnt != 0); \
if (--ipst->ips_ip6_asp_refcnt == 0) { \
mutex_exit(&ipst->ips_ip6_asp_lock); \
ip6_asp_check_for_updates(ipst); \
} else { \
mutex_exit(&ipst->ips_ip6_asp_lock); \
} \
}
/*
* Structure used in the SIOCGDSTINFO request.
* Used to retrieve information about the given destination
* address, to be used by the caller to sort a list of
* potential destination addresses.
*/
struct dstinforeq {
in6_addr_t dir_daddr; /* destination address */
in6_addr_t dir_saddr; /* source address for daddr */
in6addr_scope_t dir_dscope; /* destination scope */
in6addr_scope_t dir_sscope; /* source scope */
t_uscalar_t dir_dmactype; /* dl_mac_type of output inf */
uint32_t dir_precedence; /* destination precedence */
uint8_t dir_dreachable : 1, /* is destination reachable? */
dir_sdeprecated : 1, /* is source deprecated? */
dir_labelmatch: 1, /* src and dst labels match? */
dir_padbits : 5;
};
#ifdef _KERNEL
typedef void (*aspfunc_t)(ipsq_t *, queue_t *, mblk_t *, void *);
extern void ip6_asp_free(ip_stack_t *);
extern void ip6_asp_init(ip_stack_t *);
extern boolean_t ip6_asp_can_lookup(ip_stack_t *);
extern void ip6_asp_table_refrele(ip_stack_t *);
extern char *ip6_asp_lookup(const in6_addr_t *, uint32_t *, ip_stack_t *);
extern void ip6_asp_replace(mblk_t *mp, ip6_asp_t *, size_t, boolean_t,
ip_stack_t *, model_t);
extern int ip6_asp_get(ip6_asp_t *, size_t, ip_stack_t *);
extern boolean_t ip6_asp_labelcmp(const char *, const char *);
extern void ip6_asp_pending_op(queue_t *, mblk_t *, aspfunc_t);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _INET_IP6_ASP_H */
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