1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5270710Shselasky * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6219820Sjeff * All rights reserved. 7219820Sjeff * 8219820Sjeff * Redistribution and use in source and binary forms, with or without 9219820Sjeff * modification, are permitted provided that the following conditions 10219820Sjeff * are met: 11219820Sjeff * 1. Redistributions of source code must retain the above copyright 12219820Sjeff * notice unmodified, this list of conditions, and the following 13219820Sjeff * disclaimer. 14219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 15219820Sjeff * notice, this list of conditions and the following disclaimer in the 16219820Sjeff * documentation and/or other materials provided with the distribution. 17219820Sjeff * 18219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28290045Shselasky * 29290045Shselasky * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/net/ipv6.h 331756 2018-03-30 02:04:46Z emaste $ 30219820Sjeff */ 31219820Sjeff#ifndef _LINUX_NET_IPV6_H_ 32219820Sjeff#define _LINUX_NET_IPV6_H_ 33219820Sjeff 34290335Shselasky#include <sys/types.h> 35290335Shselasky#include <netinet/in.h> 36290335Shselasky#include <linux/types.h> 37219820Sjeff 38328653Shselasky#define IPV6_DEFAULT_HOPLIMIT 64 39328653Shselasky 40328653Shselasky#define ipv6_addr_loopback(addr) IN6_IS_ADDR_LOOPBACK(addr) 41328653Shselasky#define ipv6_addr_any(addr) IN6_IS_ADDR_UNSPECIFIED(addr) 42328653Shselasky 43328653Shselasky#define ipv6_addr_copy(dst, src) \ 44219820Sjeff memcpy((dst), (src), sizeof(struct in6_addr)) 45219820Sjeff 46219820Sjeffstatic inline void 47219820Sjeffipv6_ib_mc_map(const struct in6_addr *addr, const unsigned char *broadcast, 48219820Sjeff char *buf) 49219820Sjeff{ 50219820Sjeff unsigned char scope; 51219820Sjeff 52219820Sjeff scope = broadcast[5] & 0xF; 53219820Sjeff buf[0] = 0; 54219820Sjeff buf[1] = 0xff; 55219820Sjeff buf[2] = 0xff; 56219820Sjeff buf[3] = 0xff; 57219820Sjeff buf[4] = 0xff; 58219820Sjeff buf[5] = 0x10 | scope; 59219820Sjeff buf[6] = 0x60; 60219820Sjeff buf[7] = 0x1b; 61219820Sjeff buf[8] = broadcast[8]; 62219820Sjeff buf[9] = broadcast[9]; 63219820Sjeff memcpy(&buf[10], &addr->s6_addr[6], 10); 64219820Sjeff} 65219820Sjeff 66331756Semastestatic inline void __ipv6_addr_set_half(__be32 *addr, __be32 wh, __be32 wl) 67270710Shselasky{ 68270710Shselasky#if BITS_PER_LONG == 64 69270710Shselasky#if defined(__BIG_ENDIAN) 70331756Semaste if (__builtin_constant_p(wh) && __builtin_constant_p(wl)) { 71331756Semaste *(__force u64 *)addr = ((__force u64)(wh) << 32 | (__force u64)(wl)); 72331756Semaste return; 73331756Semaste } 74270710Shselasky#elif defined(__LITTLE_ENDIAN) 75331756Semaste if (__builtin_constant_p(wl) && __builtin_constant_p(wh)) { 76331756Semaste *(__force u64 *)addr = ((__force u64)(wl) << 32 | (__force u64)(wh)); 77331756Semaste return; 78331756Semaste } 79270710Shselasky#endif 80270710Shselasky#endif 81331756Semaste addr[0] = wh; 82331756Semaste addr[1] = wl; 83270710Shselasky} 84270710Shselasky 85270710Shselaskystatic inline void ipv6_addr_set(struct in6_addr *addr, 86331756Semaste __be32 w1, __be32 w2, 87331756Semaste __be32 w3, __be32 w4) 88270710Shselasky{ 89331756Semaste __ipv6_addr_set_half(&addr->s6_addr32[0], w1, w2); 90331756Semaste __ipv6_addr_set_half(&addr->s6_addr32[2], w3, w4); 91270710Shselasky} 92270710Shselasky 93270710Shselaskystatic inline void ipv6_addr_set_v4mapped(const __be32 addr, 94270710Shselasky struct in6_addr *v4mapped) 95270710Shselasky{ 96270710Shselasky ipv6_addr_set(v4mapped, 97270710Shselasky 0, 0, 98270710Shselasky htonl(0x0000FFFF), 99270710Shselasky addr); 100270710Shselasky} 101270710Shselasky 102270710Shselaskystatic inline int ipv6_addr_v4mapped(const struct in6_addr *a) 103270710Shselasky{ 104270710Shselasky return ((a->s6_addr32[0] | a->s6_addr32[1] | 105270710Shselasky (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0); 106270710Shselasky} 107270710Shselasky 108270710Shselaskystatic inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2) 109270710Shselasky{ 110331756Semaste return memcmp(a1, a2, sizeof(struct in6_addr)); 111270710Shselasky} 112270710Shselasky 113270710Shselasky 114219820Sjeff#endif /* _LINUX_NET_IPV6_H_ */ 115