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1734f29721
These libraries are used only inside tcpip.sys driver so move them close to it.
131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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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: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __LWIP_IP_H__
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#define __LWIP_IP_H__
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#include "lwip/opt.h"
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#include "lwip/def.h"
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#include "lwip/pbuf.h"
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#include "lwip/ip_addr.h"
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#include "lwip/err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define IP_HLEN 40
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#define IP_PROTO_ICMP 58
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#define IP_PROTO_UDP 17
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#define IP_PROTO_UDPLITE 136
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#define IP_PROTO_TCP 6
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/* This is passed as the destination address to ip_output_if (not
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to ip_output), meaning that an IP header already is constructed
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in the pbuf. This is used when TCP retransmits. */
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#ifdef IP_HDRINCL
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#undef IP_HDRINCL
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#endif /* IP_HDRINCL */
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#define IP_HDRINCL NULL
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#if LWIP_NETIF_HWADDRHINT
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#define IP_PCB_ADDRHINT ;u8_t addr_hint
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#else
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#define IP_PCB_ADDRHINT
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#endif /* LWIP_NETIF_HWADDRHINT */
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/* This is the common part of all PCB types. It needs to be at the
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beginning of a PCB type definition. It is located here so that
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changes to this common part are made in one location instead of
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having to change all PCB structs. */
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#define IP_PCB struct ip_addr local_ip; \
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struct ip_addr remote_ip; \
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/* Socket options */ \
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u16_t so_options; \
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/* Type Of Service */ \
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u8_t tos; \
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/* Time To Live */ \
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u8_t ttl; \
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/* link layer address resolution hint */ \
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IP_PCB_ADDRHINT
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/* The IPv6 header. */
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struct ip_hdr {
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#if BYTE_ORDER == LITTLE_ENDIAN
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u8_t tclass1:4, v:4;
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u8_t flow1:4, tclass2:4;
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#else
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u8_t v:4, tclass1:4;
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u8_t tclass2:8, flow1:4;
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#endif
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u16_t flow2;
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u16_t len; /* payload length */
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u8_t nexthdr; /* next header */
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u8_t hoplim; /* hop limit (TTL) */
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struct ip_addr src, dest; /* source and destination IP addresses */
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};
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#define IPH_PROTO(hdr) (iphdr->nexthdr)
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void ip_init(void);
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#include "lwip/netif.h"
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struct netif *ip_route(struct ip_addr *dest);
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void ip_input(struct pbuf *p, struct netif *inp);
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/* source and destination addresses in network byte order, please */
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err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
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u8_t ttl, u8_t proto);
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err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
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u8_t ttl, u8_t proto,
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struct netif *netif);
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#define ip_current_netif() NULL
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#define ip_current_header() NULL
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#if IP_DEBUG
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void ip_debug_print(struct pbuf *p);
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#endif /* IP_DEBUG */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LWIP_IP_H__ */
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