1382ea4ffb
Now an interface name can be specified for nptv6 instance instead of ext_prefix. The module will track if_addr_ext events and when suitable IPv6 address will be added to specified interface, it will be configured as external prefix. When address disappears instance becomes unusable, i.e. it doesn't match any packets. Reviewed by: 0mp (manpages) Tested by: Dries Michiels <driesm dot michiels gmail com> MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D17765
69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 2016 Yandex LLC
|
|
* Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _IP_FW_NPTV6_H_
|
|
#define _IP_FW_NPTV6_H_
|
|
|
|
#include <netinet6/ip_fw_nptv6.h>
|
|
|
|
#ifdef _KERNEL
|
|
#define NPTV6STATS (sizeof(struct ipfw_nptv6_stats) / sizeof(uint64_t))
|
|
#define NPTV6STAT_ADD(c, f, v) \
|
|
counter_u64_add((c)->stats[ \
|
|
offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)], (v))
|
|
#define NPTV6STAT_INC(c, f) NPTV6STAT_ADD(c, f, 1)
|
|
#define NPTV6STAT_FETCH(c, f) \
|
|
counter_u64_fetch((c)->stats[ \
|
|
offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)])
|
|
|
|
struct nptv6_cfg {
|
|
struct named_object no;
|
|
|
|
struct in6_addr internal; /* Internal IPv6 prefix */
|
|
struct in6_addr external; /* External IPv6 prefix */
|
|
struct in6_addr mask; /* IPv6 prefix mask */
|
|
uint16_t adjustment; /* Checksum adjustment value */
|
|
uint8_t plen; /* Prefix length */
|
|
uint8_t flags; /* Flags for internal use */
|
|
#define NPTV6_READY 0x80
|
|
#define NPTV6_48PLEN 0x40
|
|
|
|
char if_name[IF_NAMESIZE];
|
|
char name[64]; /* Instance name */
|
|
counter_u64_t stats[NPTV6STATS]; /* Statistics counters */
|
|
};
|
|
#define NPTV6_FLAGSMASK (NPTV6_DYNAMIC_PREFIX)
|
|
|
|
int nptv6_init(struct ip_fw_chain *ch, int first);
|
|
void nptv6_uninit(struct ip_fw_chain *ch, int last);
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _IP_FW_NPTV6_H_ */
|
|
|