| /* |
| * 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_IP_H__ |
| #define __LWIP_IP_H__ |
| |
| #include "lwip/opt.h" |
| #include "lwip/def.h" |
| #include "lwip/pbuf.h" |
| #include "lwip/ip_addr.h" |
| |
| #include "lwip/err.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define IP_HLEN 40 |
| |
| #define IP_PROTO_ICMP 58 |
| #define IP_PROTO_UDP 17 |
| #define IP_PROTO_UDPLITE 136 |
| #define IP_PROTO_TCP 6 |
| |
| /* This is passed as the destination address to ip_output_if (not |
| to ip_output), meaning that an IP header already is constructed |
| in the pbuf. This is used when TCP retransmits. */ |
| #ifdef IP_HDRINCL |
| #undef IP_HDRINCL |
| #endif /* IP_HDRINCL */ |
| #define IP_HDRINCL NULL |
| |
| #if LWIP_NETIF_HWADDRHINT |
| #define IP_PCB_ADDRHINT ;u8_t addr_hint |
| #else |
| #define IP_PCB_ADDRHINT |
| #endif /* LWIP_NETIF_HWADDRHINT */ |
| |
| /* This is the common part of all PCB types. It needs to be at the |
| beginning of a PCB type definition. It is located here so that |
| changes to this common part are made in one location instead of |
| having to change all PCB structs. */ |
| #define IP_PCB struct ip_addr local_ip; \ |
| struct ip_addr remote_ip; \ |
| /* Socket options */ \ |
| u16_t so_options; \ |
| /* Type Of Service */ \ |
| u8_t tos; \ |
| /* Time To Live */ \ |
| u8_t ttl; \ |
| /* link layer address resolution hint */ \ |
| IP_PCB_ADDRHINT |
| |
| |
| /* The IPv6 header. */ |
| struct ip_hdr { |
| #if BYTE_ORDER == LITTLE_ENDIAN |
| u8_t tclass1:4, v:4; |
| u8_t flow1:4, tclass2:4; |
| #else |
| u8_t v:4, tclass1:4; |
| u8_t tclass2:8, flow1:4; |
| #endif |
| u16_t flow2; |
| u16_t len; /* payload length */ |
| u8_t nexthdr; /* next header */ |
| u8_t hoplim; /* hop limit (TTL) */ |
| struct ip_addr src, dest; /* source and destination IP addresses */ |
| }; |
| |
| #define IPH_PROTO(hdr) (iphdr->nexthdr) |
| |
| void ip_init(void); |
| |
| #include "lwip/netif.h" |
| |
| struct netif *ip_route(struct ip_addr *dest); |
| |
| void ip_input(struct pbuf *p, struct netif *inp); |
| |
| /* source and destination addresses in network byte order, please */ |
| err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, |
| u8_t ttl, u8_t proto); |
| |
| err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, |
| u8_t ttl, u8_t proto, |
| struct netif *netif); |
| |
| #define ip_current_netif() NULL |
| #define ip_current_header() NULL |
| |
| #if IP_DEBUG |
| void ip_debug_print(struct pbuf *p); |
| #endif /* IP_DEBUG */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __LWIP_IP_H__ */ |
| |
| |