ConOpSys V2970
P004.07
ANVILEX control operating system
ConOpSys
Engine
Communication
LwIP
src
include
lwip
ip6_addr.h
Go to the documentation of this file.
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/**
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* @file
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*
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* IPv6 addresses.
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*/
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/*
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* Copyright (c) 2010 Inico Technologies Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Ivan Delamer <delamer@inicotech.com>
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*
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* Structs and macros for handling IPv6 addresses.
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*
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* Please coordinate changes and requests with Ivan Delamer
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* <delamer@inicotech.com>
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*/
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#ifndef LWIP_HDR_IP6_ADDR_H
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#define LWIP_HDR_IP6_ADDR_H
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#include "
lwip/opt.h
"
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#include "
def.h
"
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#if LWIP_IPV6
/* don't build if not configured for use in lwipopts.h */
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#include "
lwip/ip6_zone.h
"
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/** This is the aligned version of ip6_addr_t,
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used as local variable, on the stack, etc. */
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struct
ip6_addr {
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u32_t
addr[4];
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#if LWIP_IPV6_SCOPES
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u8_t
zone;
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#endif
/* LWIP_IPV6_SCOPES */
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};
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/** IPv6 address */
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typedef
struct
ip6_addr ip6_addr_t;
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/** Set an IPv6 partial address given by byte-parts */
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#define IP6_ADDR_PART(ip6addr, index, a,b,c,d) \
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(ip6addr)->addr[index] = PP_HTONL(LWIP_MAKEU32(a,b,c,d))
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/** Set a full IPv6 address by passing the 4 u32_t indices in network byte order
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(use PP_HTONL() for constants) */
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#define IP6_ADDR(ip6addr, idx0, idx1, idx2, idx3) do { \
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(ip6addr)->addr[0] = idx0; \
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(ip6addr)->addr[1] = idx1; \
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(ip6addr)->addr[2] = idx2; \
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(ip6addr)->addr[3] = idx3; \
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ip6_addr_clear_zone(ip6addr); } while(0)
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK1(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK2(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0])) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK3(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1]) >> 16) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK4(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1])) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK5(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2]) >> 16) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK6(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2])) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK7(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3]) >> 16) & 0xffff))
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/** Access address in 16-bit block */
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#define IP6_ADDR_BLOCK8(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3])) & 0xffff))
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/** Copy IPv6 address - faster than ip6_addr_set: no NULL check */
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#define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \
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(dest).addr[1] = (src).addr[1]; \
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(dest).addr[2] = (src).addr[2]; \
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(dest).addr[3] = (src).addr[3]; \
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ip6_addr_copy_zone((dest), (src)); }while(0)
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/** Safely copy one IPv6 address to another (src may be NULL) */
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#define ip6_addr_set(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : (src)->addr[0]; \
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(dest)->addr[1] = (src) == NULL ? 0 : (src)->addr[1]; \
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(dest)->addr[2] = (src) == NULL ? 0 : (src)->addr[2]; \
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(dest)->addr[3] = (src) == NULL ? 0 : (src)->addr[3]; \
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ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src)); }while(0)
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/** Copy packed IPv6 address to unpacked IPv6 address; zone is not set */
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#define ip6_addr_copy_from_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
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(dest).addr[1] = (src).addr[1]; \
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(dest).addr[2] = (src).addr[2]; \
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(dest).addr[3] = (src).addr[3]; \
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ip6_addr_clear_zone(&dest); }while(0)
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/** Copy unpacked IPv6 address to packed IPv6 address; zone is lost */
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#define ip6_addr_copy_to_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
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(dest).addr[1] = (src).addr[1]; \
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(dest).addr[2] = (src).addr[2]; \
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(dest).addr[3] = (src).addr[3]; }while(0)
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/** Set complete address to zero */
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#define ip6_addr_set_zero(ip6addr) do{(ip6addr)->addr[0] = 0; \
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(ip6addr)->addr[1] = 0; \
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(ip6addr)->addr[2] = 0; \
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(ip6addr)->addr[3] = 0; \
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ip6_addr_clear_zone(ip6addr);}while(0)
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/** Set address to ipv6 'any' (no need for lwip_htonl()) */
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#define ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr)
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/** Set address to ipv6 loopback address */
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#define ip6_addr_set_loopback(ip6addr) do{(ip6addr)->addr[0] = 0; \
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(ip6addr)->addr[1] = 0; \
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(ip6addr)->addr[2] = 0; \
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(ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
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ip6_addr_clear_zone(ip6addr);}while(0)
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/** Safely copy one IPv6 address to another and change byte order
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* from host- to network-order. */
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#define ip6_addr_set_hton(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : lwip_htonl((src)->addr[0]); \
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(dest)->addr[1] = (src) == NULL ? 0 : lwip_htonl((src)->addr[1]); \
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(dest)->addr[2] = (src) == NULL ? 0 : lwip_htonl((src)->addr[2]); \
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(dest)->addr[3] = (src) == NULL ? 0 : lwip_htonl((src)->addr[3]); \
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ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src));}while(0)
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/** Compare IPv6 networks, ignoring zone information. To be used sparingly! */
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#define ip6_addr_netcmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
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((addr1)->addr[1] == (addr2)->addr[1]))
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/**
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* Determine if two IPv6 address are on the same network.
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*
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* @param addr1 IPv6 address 1
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* @param addr2 IPv6 address 2
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* @return 1 if the network identifiers of both address match, 0 if not
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*/
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#define ip6_addr_netcmp(addr1, addr2) (ip6_addr_netcmp_zoneless((addr1), (addr2)) && \
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ip6_addr_cmp_zone((addr1), (addr2)))
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/* Exact-host comparison *after* ip6_addr_netcmp() succeeded, for efficiency. */
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#define ip6_addr_nethostcmp(addr1, addr2) (((addr1)->addr[2] == (addr2)->addr[2]) && \
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((addr1)->addr[3] == (addr2)->addr[3]))
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/** Compare IPv6 addresses, ignoring zone information. To be used sparingly! */
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#define ip6_addr_cmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
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((addr1)->addr[1] == (addr2)->addr[1]) && \
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((addr1)->addr[2] == (addr2)->addr[2]) && \
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((addr1)->addr[3] == (addr2)->addr[3]))
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/**
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* Determine if two IPv6 addresses are the same. In particular, the address
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* part of both must be the same, and the zone must be compatible.
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*
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* @param addr1 IPv6 address 1
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* @param addr2 IPv6 address 2
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* @return 1 if the addresses are considered equal, 0 if not
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*/
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#define ip6_addr_cmp(addr1, addr2) (ip6_addr_cmp_zoneless((addr1), (addr2)) && \
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ip6_addr_cmp_zone((addr1), (addr2)))
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/** Compare IPv6 address to packed address and zone */
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#define ip6_addr_cmp_packed(ip6addr, paddr, zone_idx) (((ip6addr)->addr[0] == (paddr)->addr[0]) && \
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((ip6addr)->addr[1] == (paddr)->addr[1]) && \
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((ip6addr)->addr[2] == (paddr)->addr[2]) && \
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((ip6addr)->addr[3] == (paddr)->addr[3]) && \
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ip6_addr_equals_zone((ip6addr), (zone_idx)))
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#define ip6_get_subnet_id(ip6addr) (lwip_htonl((ip6addr)->addr[2]) & 0x0000ffffUL)
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#define ip6_addr_isany_val(ip6addr) (((ip6addr).addr[0] == 0) && \
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((ip6addr).addr[1] == 0) && \
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((ip6addr).addr[2] == 0) && \
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((ip6addr).addr[3] == 0))
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#define ip6_addr_isany(ip6addr) (((ip6addr) == NULL) || ip6_addr_isany_val(*(ip6addr)))
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#define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \
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((ip6addr)->addr[1] == 0UL) && \
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((ip6addr)->addr[2] == 0UL) && \
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((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
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#define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))
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#define ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL))
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#define ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL))
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#define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))
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#define ip6_addr_isipv4mappedipv6(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL)))
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#define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))
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#define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))
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#define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))
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#define ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL))
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#define ip6_addr_multicast_scope(ip6addr) ((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xf)
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#define IP6_MULTICAST_SCOPE_RESERVED 0x0
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#define IP6_MULTICAST_SCOPE_RESERVED0 0x0
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#define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1
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#define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2
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#define IP6_MULTICAST_SCOPE_RESERVED3 0x3
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#define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4
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#define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5
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#define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8
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#define IP6_MULTICAST_SCOPE_GLOBAL 0xe
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#define IP6_MULTICAST_SCOPE_RESERVEDF 0xf
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#define ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff010000UL))
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#define ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff020000UL))
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#define ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff040000UL))
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#define ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff050000UL))
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#define ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff080000UL))
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#define ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff0e0000UL))
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/* Scoping note: while interface-local and link-local multicast addresses do
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* have a scope (i.e., they are meaningful only in the context of a particular
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* interface), the following functions are not assigning or comparing zone
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* indices. The reason for this is backward compatibility. Any call site that
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* produces a non-global multicast address must assign a multicast address as
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* appropriate itself. */
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#define ip6_addr_isallnodes_iflocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \
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((ip6addr)->addr[1] == 0UL) && \
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((ip6addr)->addr[2] == 0UL) && \
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((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
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#define ip6_addr_isallnodes_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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((ip6addr)->addr[1] == 0UL) && \
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((ip6addr)->addr[2] == 0UL) && \
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((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
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#define ip6_addr_set_allnodes_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
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(ip6addr)->addr[1] = 0; \
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(ip6addr)->addr[2] = 0; \
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(ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
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ip6_addr_clear_zone(ip6addr); }while(0)
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#define ip6_addr_isallrouters_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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((ip6addr)->addr[1] == 0UL) && \
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((ip6addr)->addr[2] == 0UL) && \
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((ip6addr)->addr[3] == PP_HTONL(0x00000002UL)))
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#define ip6_addr_set_allrouters_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
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(ip6addr)->addr[1] = 0; \
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(ip6addr)->addr[2] = 0; \
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(ip6addr)->addr[3] = PP_HTONL(0x00000002UL); \
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ip6_addr_clear_zone(ip6addr); }while(0)
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#define ip6_addr_issolicitednode(ip6addr) ( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
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(((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) )
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#define ip6_addr_set_solicitednode(ip6addr, if_id) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
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(ip6addr)->addr[1] = 0; \
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(ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \
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(ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id)); \
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ip6_addr_clear_zone(ip6addr); }while(0)
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#define ip6_addr_cmp_solicitednode(ip6addr, sn_addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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((ip6addr)->addr[1] == 0) && \
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((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
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((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3])))
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/* IPv6 address states. */
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#define IP6_ADDR_INVALID 0x00
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#define IP6_ADDR_TENTATIVE 0x08
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#define IP6_ADDR_TENTATIVE_1 0x09
/* 1 probe sent */
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#define IP6_ADDR_TENTATIVE_2 0x0a
/* 2 probes sent */
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#define IP6_ADDR_TENTATIVE_3 0x0b
/* 3 probes sent */
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#define IP6_ADDR_TENTATIVE_4 0x0c
/* 4 probes sent */
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#define IP6_ADDR_TENTATIVE_5 0x0d
/* 5 probes sent */
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#define IP6_ADDR_TENTATIVE_6 0x0e
/* 6 probes sent */
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#define IP6_ADDR_TENTATIVE_7 0x0f
/* 7 probes sent */
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#define IP6_ADDR_VALID 0x10
/* This bit marks an address as valid (preferred or deprecated) */
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#define IP6_ADDR_PREFERRED 0x30
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#define IP6_ADDR_DEPRECATED 0x10
/* Same as VALID (valid but not preferred) */
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#define IP6_ADDR_DUPLICATED 0x40
/* Failed DAD test, not valid */
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#define IP6_ADDR_TENTATIVE_COUNT_MASK 0x07
/* 1-7 probes sent */
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#define ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID)
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#define ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE)
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#define ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID)
/* Include valid, preferred, and deprecated. */
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#define ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED)
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#define ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED)
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#define ip6_addr_isduplicated(addr_state) (addr_state == IP6_ADDR_DUPLICATED)
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#if LWIP_IPV6_ADDRESS_LIFETIMES
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#define IP6_ADDR_LIFE_STATIC (0)
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#define IP6_ADDR_LIFE_INFINITE (0xffffffffUL)
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#define ip6_addr_life_isstatic(addr_life) ((addr_life) == IP6_ADDR_LIFE_STATIC)
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#define ip6_addr_life_isinfinite(addr_life) ((addr_life) == IP6_ADDR_LIFE_INFINITE)
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#endif
/* LWIP_IPV6_ADDRESS_LIFETIMES */
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#define ip6_addr_debug_print_parts(debug, a, b, c, d, e, f, g, h) \
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LWIP_DEBUGF(debug, ("%"
X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \
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a, b, c, d, e, f, g, h))
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#define ip6_addr_debug_print(debug, ipaddr) \
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ip6_addr_debug_print_parts(debug, \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0), \
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(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0))
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#define ip6_addr_debug_print_val(debug, ipaddr) \
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ip6_addr_debug_print_parts(debug, \
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IP6_ADDR_BLOCK1(&(ipaddr)), \
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IP6_ADDR_BLOCK2(&(ipaddr)), \
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IP6_ADDR_BLOCK3(&(ipaddr)), \
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IP6_ADDR_BLOCK4(&(ipaddr)), \
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IP6_ADDR_BLOCK5(&(ipaddr)), \
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IP6_ADDR_BLOCK6(&(ipaddr)), \
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IP6_ADDR_BLOCK7(&(ipaddr)), \
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IP6_ADDR_BLOCK8(&(ipaddr)))
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#define IP6ADDR_STRLEN_MAX 46
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int
ip6addr_aton(
const
char
*cp, ip6_addr_t *addr);
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/** returns ptr to static buffer; not reentrant! */
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char
*ip6addr_ntoa(
const
ip6_addr_t *addr);
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char
*ip6addr_ntoa_r(
const
ip6_addr_t *addr,
char
*buf,
int
buflen);
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#ifdef __cplusplus
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}
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#endif
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#endif
/* LWIP_IPV6 */
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#endif
/* LWIP_HDR_IP6_ADDR_H */
def.h
u32_t
uint32_t u32_t
Definition:
arch.h:129
u8_t
uint8_t u8_t
Definition:
arch.h:125
ip6_zone.h
opt.h
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