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-rw-r--r--lwip/src/include/lwip/ip6_addr.h352
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diff --git a/lwip/src/include/lwip/ip6_addr.h b/lwip/src/include/lwip/ip6_addr.h
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+++ b/lwip/src/include/lwip/ip6_addr.h
@@ -0,0 +1,352 @@
+/**
+ * @file
+ *
+ * IPv6 addresses.
+ */
+
+/*
+ * Copyright (c) 2010 Inico Technologies Ltd.
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Ivan Delamer <delamer@inicotech.com>
+ *
+ * Structs and macros for handling IPv6 addresses.
+ *
+ * Please coordinate changes and requests with Ivan Delamer
+ * <delamer@inicotech.com>
+ */
+#ifndef LWIP_HDR_IP6_ADDR_H
+#define LWIP_HDR_IP6_ADDR_H
+
+#include "lwip/opt.h"
+#include "def.h"
+
+#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/ip6_zone.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** This is the aligned version of ip6_addr_t,
+ used as local variable, on the stack, etc. */
+struct ip6_addr {
+ u32_t addr[4];
+#if LWIP_IPV6_SCOPES
+ u8_t zone;
+#endif /* LWIP_IPV6_SCOPES */
+};
+
+/** IPv6 address */
+typedef struct ip6_addr ip6_addr_t;
+
+/** Set an IPv6 partial address given by byte-parts */
+#define IP6_ADDR_PART(ip6addr, index, a,b,c,d) \
+ (ip6addr)->addr[index] = PP_HTONL(LWIP_MAKEU32(a,b,c,d))
+
+/** Set a full IPv6 address by passing the 4 u32_t indices in network byte order
+ (use PP_HTONL() for constants) */
+#define IP6_ADDR(ip6addr, idx0, idx1, idx2, idx3) do { \
+ (ip6addr)->addr[0] = idx0; \
+ (ip6addr)->addr[1] = idx1; \
+ (ip6addr)->addr[2] = idx2; \
+ (ip6addr)->addr[3] = idx3; \
+ ip6_addr_clear_zone(ip6addr); } while(0)
+
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK1(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK2(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0])) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK3(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1]) >> 16) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK4(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1])) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK5(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2]) >> 16) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK6(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2])) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK7(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3]) >> 16) & 0xffff))
+/** Access address in 16-bit block */
+#define IP6_ADDR_BLOCK8(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3])) & 0xffff))
+
+/** Copy IPv6 address - faster than ip6_addr_set: no NULL check */
+#define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \
+ (dest).addr[1] = (src).addr[1]; \
+ (dest).addr[2] = (src).addr[2]; \
+ (dest).addr[3] = (src).addr[3]; \
+ ip6_addr_copy_zone((dest), (src)); }while(0)
+/** Safely copy one IPv6 address to another (src may be NULL) */
+#define ip6_addr_set(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : (src)->addr[0]; \
+ (dest)->addr[1] = (src) == NULL ? 0 : (src)->addr[1]; \
+ (dest)->addr[2] = (src) == NULL ? 0 : (src)->addr[2]; \
+ (dest)->addr[3] = (src) == NULL ? 0 : (src)->addr[3]; \
+ ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src)); }while(0)
+
+/** Copy packed IPv6 address to unpacked IPv6 address; zone is not set */
+#define ip6_addr_copy_from_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
+ (dest).addr[1] = (src).addr[1]; \
+ (dest).addr[2] = (src).addr[2]; \
+ (dest).addr[3] = (src).addr[3]; \
+ ip6_addr_clear_zone(&dest); }while(0)
+
+/** Copy unpacked IPv6 address to packed IPv6 address; zone is lost */
+#define ip6_addr_copy_to_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
+ (dest).addr[1] = (src).addr[1]; \
+ (dest).addr[2] = (src).addr[2]; \
+ (dest).addr[3] = (src).addr[3]; }while(0)
+
+/** Set complete address to zero */
+#define ip6_addr_set_zero(ip6addr) do{(ip6addr)->addr[0] = 0; \
+ (ip6addr)->addr[1] = 0; \
+ (ip6addr)->addr[2] = 0; \
+ (ip6addr)->addr[3] = 0; \
+ ip6_addr_clear_zone(ip6addr);}while(0)
+
+/** Set address to ipv6 'any' (no need for lwip_htonl()) */
+#define ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr)
+/** Set address to ipv6 loopback address */
+#define ip6_addr_set_loopback(ip6addr) do{(ip6addr)->addr[0] = 0; \
+ (ip6addr)->addr[1] = 0; \
+ (ip6addr)->addr[2] = 0; \
+ (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
+ ip6_addr_clear_zone(ip6addr);}while(0)
+/** Safely copy one IPv6 address to another and change byte order
+ * from host- to network-order. */
+#define ip6_addr_set_hton(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : lwip_htonl((src)->addr[0]); \
+ (dest)->addr[1] = (src) == NULL ? 0 : lwip_htonl((src)->addr[1]); \
+ (dest)->addr[2] = (src) == NULL ? 0 : lwip_htonl((src)->addr[2]); \
+ (dest)->addr[3] = (src) == NULL ? 0 : lwip_htonl((src)->addr[3]); \
+ ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src));}while(0)
+
+
+/** Compare IPv6 networks, ignoring zone information. To be used sparingly! */
+#define ip6_addr_netcmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
+ ((addr1)->addr[1] == (addr2)->addr[1]))
+
+/**
+ * Determine if two IPv6 address are on the same network.
+ *
+ * @param addr1 IPv6 address 1
+ * @param addr2 IPv6 address 2
+ * @return 1 if the network identifiers of both address match, 0 if not
+ */
+#define ip6_addr_netcmp(addr1, addr2) (ip6_addr_netcmp_zoneless((addr1), (addr2)) && \
+ ip6_addr_cmp_zone((addr1), (addr2)))
+
+/* Exact-host comparison *after* ip6_addr_netcmp() succeeded, for efficiency. */
+#define ip6_addr_nethostcmp(addr1, addr2) (((addr1)->addr[2] == (addr2)->addr[2]) && \
+ ((addr1)->addr[3] == (addr2)->addr[3]))
+
+/** Compare IPv6 addresses, ignoring zone information. To be used sparingly! */
+#define ip6_addr_cmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
+ ((addr1)->addr[1] == (addr2)->addr[1]) && \
+ ((addr1)->addr[2] == (addr2)->addr[2]) && \
+ ((addr1)->addr[3] == (addr2)->addr[3]))
+/**
+ * Determine if two IPv6 addresses are the same. In particular, the address
+ * part of both must be the same, and the zone must be compatible.
+ *
+ * @param addr1 IPv6 address 1
+ * @param addr2 IPv6 address 2
+ * @return 1 if the addresses are considered equal, 0 if not
+ */
+#define ip6_addr_cmp(addr1, addr2) (ip6_addr_cmp_zoneless((addr1), (addr2)) && \
+ ip6_addr_cmp_zone((addr1), (addr2)))
+
+/** Compare IPv6 address to packed address and zone */
+#define ip6_addr_cmp_packed(ip6addr, paddr, zone_idx) (((ip6addr)->addr[0] == (paddr)->addr[0]) && \
+ ((ip6addr)->addr[1] == (paddr)->addr[1]) && \
+ ((ip6addr)->addr[2] == (paddr)->addr[2]) && \
+ ((ip6addr)->addr[3] == (paddr)->addr[3]) && \
+ ip6_addr_equals_zone((ip6addr), (zone_idx)))
+
+#define ip6_get_subnet_id(ip6addr) (lwip_htonl((ip6addr)->addr[2]) & 0x0000ffffUL)
+
+#define ip6_addr_isany_val(ip6addr) (((ip6addr).addr[0] == 0) && \
+ ((ip6addr).addr[1] == 0) && \
+ ((ip6addr).addr[2] == 0) && \
+ ((ip6addr).addr[3] == 0))
+#define ip6_addr_isany(ip6addr) (((ip6addr) == NULL) || ip6_addr_isany_val(*(ip6addr)))
+
+#define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \
+ ((ip6addr)->addr[1] == 0UL) && \
+ ((ip6addr)->addr[2] == 0UL) && \
+ ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
+
+#define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))
+
+#define ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL))
+
+#define ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL))
+
+#define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))
+
+#define ip6_addr_isipv4mappedipv6(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL)))
+
+#define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))
+#define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))
+#define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))
+#define ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL))
+#define ip6_addr_multicast_scope(ip6addr) ((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xf)
+#define IP6_MULTICAST_SCOPE_RESERVED 0x0
+#define IP6_MULTICAST_SCOPE_RESERVED0 0x0
+#define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1
+#define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2
+#define IP6_MULTICAST_SCOPE_RESERVED3 0x3
+#define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4
+#define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5
+#define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8
+#define IP6_MULTICAST_SCOPE_GLOBAL 0xe
+#define IP6_MULTICAST_SCOPE_RESERVEDF 0xf
+#define ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff010000UL))
+#define ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff020000UL))
+#define ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff040000UL))
+#define ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff050000UL))
+#define ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff080000UL))
+#define ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff0e0000UL))
+
+/* Scoping note: while interface-local and link-local multicast addresses do
+ * have a scope (i.e., they are meaningful only in the context of a particular
+ * interface), the following functions are not assigning or comparing zone
+ * indices. The reason for this is backward compatibility. Any call site that
+ * produces a non-global multicast address must assign a multicast address as
+ * appropriate itself. */
+
+#define ip6_addr_isallnodes_iflocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \
+ ((ip6addr)->addr[1] == 0UL) && \
+ ((ip6addr)->addr[2] == 0UL) && \
+ ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
+
+#define ip6_addr_isallnodes_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
+ ((ip6addr)->addr[1] == 0UL) && \
+ ((ip6addr)->addr[2] == 0UL) && \
+ ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
+#define ip6_addr_set_allnodes_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
+ (ip6addr)->addr[1] = 0; \
+ (ip6addr)->addr[2] = 0; \
+ (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
+ ip6_addr_clear_zone(ip6addr); }while(0)
+
+#define ip6_addr_isallrouters_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
+ ((ip6addr)->addr[1] == 0UL) && \
+ ((ip6addr)->addr[2] == 0UL) && \
+ ((ip6addr)->addr[3] == PP_HTONL(0x00000002UL)))
+#define ip6_addr_set_allrouters_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
+ (ip6addr)->addr[1] = 0; \
+ (ip6addr)->addr[2] = 0; \
+ (ip6addr)->addr[3] = PP_HTONL(0x00000002UL); \
+ ip6_addr_clear_zone(ip6addr); }while(0)
+
+#define ip6_addr_issolicitednode(ip6addr) ( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
+ ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
+ (((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) )
+
+#define ip6_addr_set_solicitednode(ip6addr, if_id) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
+ (ip6addr)->addr[1] = 0; \
+ (ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \
+ (ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id)); \
+ ip6_addr_clear_zone(ip6addr); }while(0)
+
+#define ip6_addr_cmp_solicitednode(ip6addr, sn_addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
+ ((ip6addr)->addr[1] == 0) && \
+ ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
+ ((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3])))
+
+/* IPv6 address states. */
+#define IP6_ADDR_INVALID 0x00
+#define IP6_ADDR_TENTATIVE 0x08
+#define IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */
+#define IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */
+#define IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */
+#define IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */
+#define IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */
+#define IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */
+#define IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */
+#define IP6_ADDR_VALID 0x10 /* This bit marks an address as valid (preferred or deprecated) */
+#define IP6_ADDR_PREFERRED 0x30
+#define IP6_ADDR_DEPRECATED 0x10 /* Same as VALID (valid but not preferred) */
+#define IP6_ADDR_DUPLICATED 0x40 /* Failed DAD test, not valid */
+
+#define IP6_ADDR_TENTATIVE_COUNT_MASK 0x07 /* 1-7 probes sent */
+
+#define ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID)
+#define ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE)
+#define ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */
+#define ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED)
+#define ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED)
+#define ip6_addr_isduplicated(addr_state) (addr_state == IP6_ADDR_DUPLICATED)
+
+#if LWIP_IPV6_ADDRESS_LIFETIMES
+#define IP6_ADDR_LIFE_STATIC (0)
+#define IP6_ADDR_LIFE_INFINITE (0xffffffffUL)
+#define ip6_addr_life_isstatic(addr_life) ((addr_life) == IP6_ADDR_LIFE_STATIC)
+#define ip6_addr_life_isinfinite(addr_life) ((addr_life) == IP6_ADDR_LIFE_INFINITE)
+#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */
+
+#define ip6_addr_debug_print_parts(debug, a, b, c, d, e, f, g, h) \
+ LWIP_DEBUGF(debug, ("%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \
+ a, b, c, d, e, f, g, h))
+#define ip6_addr_debug_print(debug, ipaddr) \
+ ip6_addr_debug_print_parts(debug, \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0), \
+ (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0))
+#define ip6_addr_debug_print_val(debug, ipaddr) \
+ ip6_addr_debug_print_parts(debug, \
+ IP6_ADDR_BLOCK1(&(ipaddr)), \
+ IP6_ADDR_BLOCK2(&(ipaddr)), \
+ IP6_ADDR_BLOCK3(&(ipaddr)), \
+ IP6_ADDR_BLOCK4(&(ipaddr)), \
+ IP6_ADDR_BLOCK5(&(ipaddr)), \
+ IP6_ADDR_BLOCK6(&(ipaddr)), \
+ IP6_ADDR_BLOCK7(&(ipaddr)), \
+ IP6_ADDR_BLOCK8(&(ipaddr)))
+
+#define IP6ADDR_STRLEN_MAX 46
+
+int ip6addr_aton(const char *cp, ip6_addr_t *addr);
+/** returns ptr to static buffer; not reentrant! */
+char *ip6addr_ntoa(const ip6_addr_t *addr);
+char *ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_IPV6 */
+
+#endif /* LWIP_HDR_IP6_ADDR_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 15:45:42 +0000