1 /*- 2 * Copyright (c) 2016 Yandex LLC 3 * Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #ifndef _IP_FW_NPTV6_H_ 31 #define _IP_FW_NPTV6_H_ 32 33 #include <netinet6/ip_fw_nptv6.h> 34 35 #ifdef _KERNEL 36 #define NPTV6STATS (sizeof(struct ipfw_nptv6_stats) / sizeof(uint64_t)) 37 #define NPTV6STAT_ADD(c, f, v) \ 38 counter_u64_add((c)->stats[ \ 39 offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)], (v)) 40 #define NPTV6STAT_INC(c, f) NPTV6STAT_ADD(c, f, 1) 41 #define NPTV6STAT_FETCH(c, f) \ 42 counter_u64_fetch((c)->stats[ \ 43 offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)]) 44 45 struct nptv6_cfg { 46 struct named_object no; 47 48 struct in6_addr internal; /* Internal IPv6 prefix */ 49 struct in6_addr external; /* External IPv6 prefix */ 50 struct in6_addr mask; /* IPv6 prefix mask */ 51 uint16_t adjustment; /* Checksum adjustment value */ 52 uint8_t plen; /* Prefix length */ 53 uint8_t flags; /* Flags for internal use */ 54 #define NPTV6_48PLEN 0x0001 55 char name[64]; /* Instance name */ 56 counter_u64_t stats[NPTV6STATS]; /* Statistics counters */ 57 }; 58 #define NPTV6_FLAGSMASK 0 59 60 int nptv6_init(struct ip_fw_chain *ch, int first); 61 void nptv6_uninit(struct ip_fw_chain *ch, int last); 62 #endif /* _KERNEL */ 63 64 #endif /* _IP_FW_NPTV6_H_ */ 65 66