| /** |
| * @file |
| * ND6 protocol definitions |
| */ |
| |
| /* |
| * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| * 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: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| #ifndef LWIP_HDR_PROT_ND6_H |
| #define LWIP_HDR_PROT_ND6_H |
| |
| #include "lwip/arch.h" |
| #include "lwip/ip6_addr.h" |
| #include "lwip/prot/ip6.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** Neighbor solicitation message header. */ |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct ns_header { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t code); |
| PACK_STRUCT_FIELD(u16_t chksum); |
| PACK_STRUCT_FIELD(u32_t reserved); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); |
| /* Options follow. */ |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Neighbor advertisement message header. */ |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct na_header { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t code); |
| PACK_STRUCT_FIELD(u16_t chksum); |
| PACK_STRUCT_FLD_8(u8_t flags); |
| PACK_STRUCT_FLD_8(u8_t reserved[3]); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); |
| /* Options follow. */ |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| #define ND6_FLAG_ROUTER (0x80) |
| #define ND6_FLAG_SOLICITED (0x40) |
| #define ND6_FLAG_OVERRIDE (0x20) |
| |
| /** Router solicitation message header. */ |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct rs_header { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t code); |
| PACK_STRUCT_FIELD(u16_t chksum); |
| PACK_STRUCT_FIELD(u32_t reserved); |
| /* Options follow. */ |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Router advertisement message header. */ |
| #define ND6_RA_FLAG_MANAGED_ADDR_CONFIG (0x80) |
| #define ND6_RA_FLAG_OTHER_CONFIG (0x40) |
| #define ND6_RA_FLAG_HOME_AGENT (0x20) |
| #define ND6_RA_PREFERENCE_MASK (0x18) |
| #define ND6_RA_PREFERENCE_HIGH (0x08) |
| #define ND6_RA_PREFERENCE_MEDIUM (0x00) |
| #define ND6_RA_PREFERENCE_LOW (0x18) |
| #define ND6_RA_PREFERENCE_DISABLED (0x10) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct ra_header { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t code); |
| PACK_STRUCT_FIELD(u16_t chksum); |
| PACK_STRUCT_FLD_8(u8_t current_hop_limit); |
| PACK_STRUCT_FLD_8(u8_t flags); |
| PACK_STRUCT_FIELD(u16_t router_lifetime); |
| PACK_STRUCT_FIELD(u32_t reachable_time); |
| PACK_STRUCT_FIELD(u32_t retrans_timer); |
| /* Options follow. */ |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Redirect message header. */ |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct redirect_header { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t code); |
| PACK_STRUCT_FIELD(u16_t chksum); |
| PACK_STRUCT_FIELD(u32_t reserved); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t destination_address); |
| /* Options follow. */ |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Link-layer address option. */ |
| #define ND6_OPTION_TYPE_SOURCE_LLADDR (0x01) |
| #define ND6_OPTION_TYPE_TARGET_LLADDR (0x02) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct lladdr_option { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t length); |
| PACK_STRUCT_FLD_8(u8_t addr[NETIF_MAX_HWADDR_LEN]); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Prefix information option. */ |
| #define ND6_OPTION_TYPE_PREFIX_INFO (0x03) |
| #define ND6_PREFIX_FLAG_ON_LINK (0x80) |
| #define ND6_PREFIX_FLAG_AUTONOMOUS (0x40) |
| #define ND6_PREFIX_FLAG_ROUTER_ADDRESS (0x20) |
| #define ND6_PREFIX_FLAG_SITE_PREFIX (0x10) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct prefix_option { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t length); |
| PACK_STRUCT_FLD_8(u8_t prefix_length); |
| PACK_STRUCT_FLD_8(u8_t flags); |
| PACK_STRUCT_FIELD(u32_t valid_lifetime); |
| PACK_STRUCT_FIELD(u32_t preferred_lifetime); |
| PACK_STRUCT_FLD_8(u8_t reserved2[3]); |
| PACK_STRUCT_FLD_8(u8_t site_prefix_length); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t prefix); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Redirected header option. */ |
| #define ND6_OPTION_TYPE_REDIR_HDR (0x04) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct redirected_header_option { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t length); |
| PACK_STRUCT_FLD_8(u8_t reserved[6]); |
| /* Portion of redirected packet follows. */ |
| /* PACK_STRUCT_FLD_8(u8_t redirected[8]); */ |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** MTU option. */ |
| #define ND6_OPTION_TYPE_MTU (0x05) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct mtu_option { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t length); |
| PACK_STRUCT_FIELD(u16_t reserved); |
| PACK_STRUCT_FIELD(u32_t mtu); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Route information option. */ |
| #define ND6_OPTION_TYPE_ROUTE_INFO (24) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct route_option { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t length); |
| PACK_STRUCT_FLD_8(u8_t prefix_length); |
| PACK_STRUCT_FLD_8(u8_t preference); |
| PACK_STRUCT_FIELD(u32_t route_lifetime); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t prefix); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| /** Recursive DNS Server Option. */ |
| #define ND6_OPTION_TYPE_RDNSS (25) |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/bpstruct.h" |
| #endif |
| PACK_STRUCT_BEGIN |
| struct rdnss_option { |
| PACK_STRUCT_FLD_8(u8_t type); |
| PACK_STRUCT_FLD_8(u8_t length); |
| PACK_STRUCT_FIELD(u16_t reserved); |
| PACK_STRUCT_FIELD(u32_t lifetime); |
| PACK_STRUCT_FLD_S(ip6_addr_p_t rdnss_address[1]); |
| } PACK_STRUCT_STRUCT; |
| PACK_STRUCT_END |
| #ifdef PACK_STRUCT_USE_INCLUDES |
| # include "arch/epstruct.h" |
| #endif |
| |
| #define SIZEOF_RDNSS_OPTION_BASE 8 /* size without addresses */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* LWIP_HDR_PROT_ND6_H */ |