idinor Launcher / StrippedDownNetServices

This library is stripped down version of NetServices library. HTTP server and client function is NOT supported.

Dependents:   imu-daq-eth

lwip/include/netif/etharp.h@0:dcf3c92487ca, 2011-07-20 (annotated)

Committer:
idinor
Date:
Wed Jul 20 11:45:39 2011 +0000
Revision:
0:dcf3c92487ca

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


idinor

0:dcf3c92487ca


     1

/*





idinor

0:dcf3c92487ca


     2

 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.





idinor

0:dcf3c92487ca


     3

 * Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>





idinor

0:dcf3c92487ca


     4

 * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.





idinor

0:dcf3c92487ca


     5

 * All rights reserved. 





idinor

0:dcf3c92487ca


     6

 * 





idinor

0:dcf3c92487ca


     7

 * Redistribution and use in source and binary forms, with or without modification, 





idinor

0:dcf3c92487ca


     8

 * are permitted provided that the following conditions are met:





idinor

0:dcf3c92487ca


     9

 *





idinor

0:dcf3c92487ca


    10

 * 1. Redistributions of source code must retain the above copyright notice,





idinor

0:dcf3c92487ca


    11

 *    this list of conditions and the following disclaimer.





idinor

0:dcf3c92487ca


    12

 * 2. Redistributions in binary form must reproduce the above copyright notice,





idinor

0:dcf3c92487ca


    13

 *    this list of conditions and the following disclaimer in the documentation





idinor

0:dcf3c92487ca


    14

 *    and/or other materials provided with the distribution.





idinor

0:dcf3c92487ca


    15

 * 3. The name of the author may not be used to endorse or promote products





idinor

0:dcf3c92487ca


    16

 *    derived from this software without specific prior written permission. 





idinor

0:dcf3c92487ca


    17

 *





idinor

0:dcf3c92487ca


    18

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 





idinor

0:dcf3c92487ca


    19

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 





idinor

0:dcf3c92487ca


    20

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 





idinor

0:dcf3c92487ca


    21

 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 





idinor

0:dcf3c92487ca


    22

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 





idinor

0:dcf3c92487ca


    23

 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 





idinor

0:dcf3c92487ca


    24

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 





idinor

0:dcf3c92487ca


    25

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 





idinor

0:dcf3c92487ca


    26

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 





idinor

0:dcf3c92487ca


    27

 * OF SUCH DAMAGE.





idinor

0:dcf3c92487ca


    28

 *





idinor

0:dcf3c92487ca


    29

 * This file is part of the lwIP TCP/IP stack.





idinor

0:dcf3c92487ca


    30

 * 





idinor

0:dcf3c92487ca


    31

 * Author: Adam Dunkels <adam@sics.se>





idinor

0:dcf3c92487ca


    32

 *





idinor

0:dcf3c92487ca


    33

 */





idinor

0:dcf3c92487ca


    34







idinor

0:dcf3c92487ca


    35

#ifndef __NETIF_ETHARP_H__





idinor

0:dcf3c92487ca


    36

#define __NETIF_ETHARP_H__





idinor

0:dcf3c92487ca


    37







idinor

0:dcf3c92487ca


    38

#include "lwip/opt.h"





idinor

0:dcf3c92487ca


    39







idinor

0:dcf3c92487ca


    40

#if LWIP_ARP || LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */





idinor

0:dcf3c92487ca


    41







idinor

0:dcf3c92487ca


    42

#include "lwip/pbuf.h"





idinor

0:dcf3c92487ca


    43

#include "lwip/ip_addr.h"





idinor

0:dcf3c92487ca


    44

#include "lwip/netif.h"





idinor

0:dcf3c92487ca


    45

#include "lwip/ip.h"





idinor

0:dcf3c92487ca


    46







idinor

0:dcf3c92487ca


    47

#ifdef __cplusplus





idinor

0:dcf3c92487ca


    48

extern "C" {





idinor

0:dcf3c92487ca


    49

#endif





idinor

0:dcf3c92487ca


    50







idinor

0:dcf3c92487ca


    51

#ifndef ETHARP_HWADDR_LEN





idinor

0:dcf3c92487ca


    52

#define ETHARP_HWADDR_LEN     6





idinor

0:dcf3c92487ca


    53

#endif





idinor

0:dcf3c92487ca


    54







idinor

0:dcf3c92487ca


    55

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


    56

#  include "arch/bpstruct.h"





idinor

0:dcf3c92487ca


    57

#endif





idinor

0:dcf3c92487ca


    58

PACK_STRUCT_BEGIN





idinor

0:dcf3c92487ca


    59

struct eth_addr {





idinor

0:dcf3c92487ca


    60

  PACK_STRUCT_FIELD(u8_t addr[ETHARP_HWADDR_LEN]);





idinor

0:dcf3c92487ca


    61

} PACK_STRUCT_STRUCT;





idinor

0:dcf3c92487ca


    62

PACK_STRUCT_END





idinor

0:dcf3c92487ca


    63

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


    64

#  include "arch/epstruct.h"





idinor

0:dcf3c92487ca


    65

#endif





idinor

0:dcf3c92487ca


    66







idinor

0:dcf3c92487ca


    67

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


    68

#  include "arch/bpstruct.h"





idinor

0:dcf3c92487ca


    69

#endif





idinor

0:dcf3c92487ca


    70

PACK_STRUCT_BEGIN





idinor

0:dcf3c92487ca


    71

/* Ethernet header */





idinor

0:dcf3c92487ca


    72

struct eth_hdr {





idinor

0:dcf3c92487ca


    73

#if ETH_PAD_SIZE





idinor

0:dcf3c92487ca


    74

  PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);





idinor

0:dcf3c92487ca


    75

#endif





idinor

0:dcf3c92487ca


    76

  PACK_STRUCT_FIELD(struct eth_addr dest);





idinor

0:dcf3c92487ca


    77

  PACK_STRUCT_FIELD(struct eth_addr src);





idinor

0:dcf3c92487ca


    78

  PACK_STRUCT_FIELD(u16_t type);





idinor

0:dcf3c92487ca


    79

} PACK_STRUCT_STRUCT;





idinor

0:dcf3c92487ca


    80

PACK_STRUCT_END





idinor

0:dcf3c92487ca


    81

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


    82

#  include "arch/epstruct.h"





idinor

0:dcf3c92487ca


    83

#endif





idinor

0:dcf3c92487ca


    84







idinor

0:dcf3c92487ca


    85

#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)





idinor

0:dcf3c92487ca


    86







idinor

0:dcf3c92487ca


    87

#if ETHARP_SUPPORT_VLAN





idinor

0:dcf3c92487ca


    88







idinor

0:dcf3c92487ca


    89

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


    90

#  include "arch/bpstruct.h"





idinor

0:dcf3c92487ca


    91

#endif





idinor

0:dcf3c92487ca


    92

PACK_STRUCT_BEGIN





idinor

0:dcf3c92487ca


    93

/* VLAN header inserted between ethernet header and payload





idinor

0:dcf3c92487ca


    94

 * if 'type' in ethernet header is ETHTYPE_VLAN.





idinor

0:dcf3c92487ca


    95

 * See IEEE802.Q */





idinor

0:dcf3c92487ca


    96

struct eth_vlan_hdr {





idinor

0:dcf3c92487ca


    97

  PACK_STRUCT_FIELD(u16_t tpid);





idinor

0:dcf3c92487ca


    98

  PACK_STRUCT_FIELD(u16_t prio_vid);





idinor

0:dcf3c92487ca


    99

} PACK_STRUCT_STRUCT;





idinor

0:dcf3c92487ca


   100

PACK_STRUCT_END





idinor

0:dcf3c92487ca


   101

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


   102

#  include "arch/epstruct.h"





idinor

0:dcf3c92487ca


   103

#endif





idinor

0:dcf3c92487ca


   104







idinor

0:dcf3c92487ca


   105

#define SIZEOF_VLAN_HDR 4





idinor

0:dcf3c92487ca


   106

#define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF)





idinor

0:dcf3c92487ca


   107







idinor

0:dcf3c92487ca


   108

#endif /* ETHARP_SUPPORT_VLAN */





idinor

0:dcf3c92487ca


   109







idinor

0:dcf3c92487ca


   110

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


   111

#  include "arch/bpstruct.h"





idinor

0:dcf3c92487ca


   112

#endif





idinor

0:dcf3c92487ca


   113

PACK_STRUCT_BEGIN





idinor

0:dcf3c92487ca


   114

/* the ARP message, see RFC 826 ("Packet format") */





idinor

0:dcf3c92487ca


   115

struct etharp_hdr {





idinor

0:dcf3c92487ca


   116

  PACK_STRUCT_FIELD(u16_t hwtype);





idinor

0:dcf3c92487ca


   117

  PACK_STRUCT_FIELD(u16_t proto);





idinor

0:dcf3c92487ca


   118

  PACK_STRUCT_FIELD(u8_t  hwlen);





idinor

0:dcf3c92487ca


   119

  PACK_STRUCT_FIELD(u8_t  protolen);





idinor

0:dcf3c92487ca


   120

  PACK_STRUCT_FIELD(u16_t opcode);





idinor

0:dcf3c92487ca


   121

  PACK_STRUCT_FIELD(struct eth_addr shwaddr);





idinor

0:dcf3c92487ca


   122

  PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);





idinor

0:dcf3c92487ca


   123

  PACK_STRUCT_FIELD(struct eth_addr dhwaddr);





idinor

0:dcf3c92487ca


   124

  PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);





idinor

0:dcf3c92487ca


   125

} PACK_STRUCT_STRUCT;





idinor

0:dcf3c92487ca


   126

PACK_STRUCT_END





idinor

0:dcf3c92487ca


   127

#ifdef PACK_STRUCT_USE_INCLUDES





idinor

0:dcf3c92487ca


   128

#  include "arch/epstruct.h"





idinor

0:dcf3c92487ca


   129

#endif





idinor

0:dcf3c92487ca


   130







idinor

0:dcf3c92487ca


   131

#define SIZEOF_ETHARP_HDR 28





idinor

0:dcf3c92487ca


   132

#define SIZEOF_ETHARP_PACKET (SIZEOF_ETH_HDR + SIZEOF_ETHARP_HDR)





idinor

0:dcf3c92487ca


   133







idinor

0:dcf3c92487ca


   134

/* 5 seconds period */





idinor

0:dcf3c92487ca


   135

#define ARP_TMR_INTERVAL 5000





idinor

0:dcf3c92487ca


   136







idinor

0:dcf3c92487ca


   137

#define ETHTYPE_ARP       0x0806





idinor

0:dcf3c92487ca


   138

#define ETHTYPE_IP        0x0800





idinor

0:dcf3c92487ca


   139

#define ETHTYPE_VLAN      0x8100





idinor

0:dcf3c92487ca


   140

#define ETHTYPE_PPPOEDISC 0x8863  /* PPP Over Ethernet Discovery Stage */





idinor

0:dcf3c92487ca


   141

#define ETHTYPE_PPPOE     0x8864  /* PPP Over Ethernet Session Stage */





idinor

0:dcf3c92487ca


   142







idinor

0:dcf3c92487ca


   143

/* MEMCPY-like macro to copy to/from struct eth_addr's that are local variables





idinor

0:dcf3c92487ca


   144

 * or known to be 32-bit aligned within the protocol header. */





idinor

0:dcf3c92487ca


   145

#ifndef ETHADDR32_COPY





idinor

0:dcf3c92487ca


   146

#define ETHADDR32_COPY(src, dst)  SMEMCPY(src, dst, ETHARP_HWADDR_LEN)





idinor

0:dcf3c92487ca


   147

#endif





idinor

0:dcf3c92487ca


   148







idinor

0:dcf3c92487ca


   149

/* MEMCPY-like macro to copy to/from struct eth_addr's that are no local





idinor

0:dcf3c92487ca


   150

 * variables and known to be 16-bit aligned within the protocol header. */





idinor

0:dcf3c92487ca


   151

#ifndef ETHADDR16_COPY





idinor

0:dcf3c92487ca


   152

#define ETHADDR16_COPY(src, dst)  SMEMCPY(src, dst, ETHARP_HWADDR_LEN)





idinor

0:dcf3c92487ca


   153

#endif





idinor

0:dcf3c92487ca


   154







idinor

0:dcf3c92487ca


   155

#if LWIP_ARP /* don't build if not configured for use in lwipopts.h */





idinor

0:dcf3c92487ca


   156







idinor

0:dcf3c92487ca


   157

/* ARP message types (opcodes) */





idinor

0:dcf3c92487ca


   158

#define ARP_REQUEST 1





idinor

0:dcf3c92487ca


   159

#define ARP_REPLY   2





idinor

0:dcf3c92487ca


   160







idinor

0:dcf3c92487ca


   161

/* Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)





idinor

0:dcf3c92487ca


   162

 * to a filter function that returns the correct netif when using multiple





idinor

0:dcf3c92487ca


   163

 * netifs on one hardware interface where the netif's low-level receive





idinor

0:dcf3c92487ca


   164

 * routine cannot decide for the correct netif (e.g. when mapping multiple





idinor

0:dcf3c92487ca


   165

 * IP addresses to one hardware interface).





idinor

0:dcf3c92487ca


   166

 */





idinor

0:dcf3c92487ca


   167

#ifndef LWIP_ARP_FILTER_NETIF





idinor

0:dcf3c92487ca


   168

#define LWIP_ARP_FILTER_NETIF 0





idinor

0:dcf3c92487ca


   169

#endif





idinor

0:dcf3c92487ca


   170







idinor

0:dcf3c92487ca


   171

#if ARP_QUEUEING





idinor

0:dcf3c92487ca


   172

/* struct for queueing outgoing packets for unknown address





idinor

0:dcf3c92487ca


   173

  * defined here to be accessed by memp.h





idinor

0:dcf3c92487ca


   174

  */





idinor

0:dcf3c92487ca


   175

struct etharp_q_entry {





idinor

0:dcf3c92487ca


   176

  struct etharp_q_entry *next;





idinor

0:dcf3c92487ca


   177

  struct pbuf *p;





idinor

0:dcf3c92487ca


   178

};





idinor

0:dcf3c92487ca


   179

#endif /* ARP_QUEUEING */





idinor

0:dcf3c92487ca


   180







idinor

0:dcf3c92487ca


   181

#define etharp_init() /* Compatibility define, not init needed. */





idinor

0:dcf3c92487ca


   182

void etharp_tmr(void);





idinor

0:dcf3c92487ca


   183

s8_t etharp_find_addr(struct netif *netif, ip_addr_t *ipaddr,





idinor

0:dcf3c92487ca


   184

         struct eth_addr **eth_ret, ip_addr_t **ip_ret);





idinor

0:dcf3c92487ca


   185

err_t etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr);





idinor

0:dcf3c92487ca


   186

err_t etharp_query(struct netif *netif, ip_addr_t *ipaddr, struct pbuf *q);





idinor

0:dcf3c92487ca


   187

err_t etharp_request(struct netif *netif, ip_addr_t *ipaddr);





idinor

0:dcf3c92487ca


   188

/* For Ethernet network interfaces, we might want to send "gratuitous ARP";





idinor

0:dcf3c92487ca


   189

 *  this is an ARP packet sent by a node in order to spontaneously cause other





idinor

0:dcf3c92487ca


   190

 *  nodes to update an entry in their ARP cache.





idinor

0:dcf3c92487ca


   191

 *  From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */





idinor

0:dcf3c92487ca


   192

#define etharp_gratuitous(netif) etharp_request((netif), &(netif)->ip_addr)





idinor

0:dcf3c92487ca


   193







idinor

0:dcf3c92487ca


   194

#if ETHARP_SUPPORT_STATIC_ENTRIES





idinor

0:dcf3c92487ca


   195

err_t etharp_add_static_entry(ip_addr_t *ipaddr, struct eth_addr *ethaddr);





idinor

0:dcf3c92487ca


   196

err_t etharp_remove_static_entry(ip_addr_t *ipaddr);





idinor

0:dcf3c92487ca


   197

#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */





idinor

0:dcf3c92487ca


   198







idinor

0:dcf3c92487ca


   199

#if LWIP_AUTOIP





idinor

0:dcf3c92487ca


   200

err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,





idinor

0:dcf3c92487ca


   201

                 const struct eth_addr *ethdst_addr,





idinor

0:dcf3c92487ca


   202

                 const struct eth_addr *hwsrc_addr, const ip_addr_t *ipsrc_addr,





idinor

0:dcf3c92487ca


   203

                 const struct eth_addr *hwdst_addr, const ip_addr_t *ipdst_addr,





idinor

0:dcf3c92487ca


   204

                 const u16_t opcode);





idinor

0:dcf3c92487ca


   205

#endif /* LWIP_AUTOIP */





idinor

0:dcf3c92487ca


   206







idinor

0:dcf3c92487ca


   207

#endif /* LWIP_ARP */





idinor

0:dcf3c92487ca


   208







idinor

0:dcf3c92487ca


   209

err_t ethernet_input(struct pbuf *p, struct netif *netif);





idinor

0:dcf3c92487ca


   210







idinor

0:dcf3c92487ca


   211

#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETHARP_HWADDR_LEN) == 0)





idinor

0:dcf3c92487ca


   212







idinor

0:dcf3c92487ca


   213

extern const struct eth_addr ethbroadcast, ethzero;





idinor

0:dcf3c92487ca


   214







idinor

0:dcf3c92487ca


   215

#ifdef __cplusplus





idinor

0:dcf3c92487ca


   216

}





idinor

0:dcf3c92487ca


   217

#endif





idinor

0:dcf3c92487ca


   218







idinor

0:dcf3c92487ca


   219

#endif /* LWIP_ARP || LWIP_ETHERNET */





idinor

0:dcf3c92487ca


   220







idinor

0:dcf3c92487ca


   221

#endif /* __NETIF_ARP_H__ */