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 28 #ifndef _IP_FW_NPTV6_H_ 29 #define _IP_FW_NPTV6_H_ 30 31 #include <netinet6/ip_fw_nptv6.h> 32 33 #ifdef _KERNEL 34 #define NPTV6STATS (sizeof(struct ipfw_nptv6_stats) / sizeof(uint64_t)) 35 #define NPTV6STAT_ADD(c, f, v) \ 36 counter_u64_add((c)->stats[ \ 37 offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)], (v)) 38 #define NPTV6STAT_INC(c, f) NPTV6STAT_ADD(c, f, 1) 39 #define NPTV6STAT_FETCH(c, f) \ 40 counter_u64_fetch((c)->stats[ \ 41 offsetof(struct ipfw_nptv6_stats, f) / sizeof(uint64_t)]) 42 43 struct nptv6_cfg { 44 struct named_object no; 45 46 struct in6_addr internal; /* Internal IPv6 prefix */ 47 struct in6_addr external; /* External IPv6 prefix */ 48 struct in6_addr mask; /* IPv6 prefix mask */ 49 uint16_t adjustment; /* Checksum adjustment value */ 50 uint8_t plen; /* Prefix length */ 51 uint8_t flags; /* Flags for internal use */ 52 #define NPTV6_READY 0x80 53 #define NPTV6_48PLEN 0x40 54 55 char if_name[IF_NAMESIZE]; 56 char name[64]; /* Instance name */ 57 counter_u64_t stats[NPTV6STATS]; /* Statistics counters */ 58 }; 59 #define NPTV6_FLAGSMASK (NPTV6_DYNAMIC_PREFIX) 60 61 int nptv6_init(struct ip_fw_chain *ch, int first); 62 void nptv6_uninit(struct ip_fw_chain *ch, int last); 63 #endif /* _KERNEL */ 64 65 #endif /* _IP_FW_NPTV6_H_ */ 66