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Moved if_ether.h and if_arp.h to include/gpxe, for consistency with Linux
kernel. Removed obsolete struct arprequest from if_arp.h and put it in nic.c so that nic.c will still compile. ARP will very shortly be handled by net/arp.c instead.
This commit is contained in:
Michael Brown
parent
9f67ad9db0
commit
49f933fbc3
@ -24,6 +24,18 @@ Literature dealing with the network protocols:
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#include "background.h"
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#include "elf.h" /* FOR EM_CURRENT */
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struct arprequest {
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uint16_t hwtype;
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uint16_t protocol;
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uint8_t hwlen;
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uint8_t protolen;
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uint16_t opcode;
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uint8_t shwaddr[6];
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uint8_t sipaddr[4];
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uint8_t thwaddr[6];
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uint8_t tipaddr[4];
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} PACKED;
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struct arptable_t arptable[MAX_ARP];
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/* Put rom_info in .nocompress section so romprefix.S can write to it */
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struct rom_info rom __attribute__ ((section (".text16.nocompress"))) = {0,0};
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@ -427,7 +439,7 @@ static int await_arp(int ival, void *ptr,
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return 0;
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arpreply = (struct arprequest *)&nic.packet[ETH_HLEN];
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if (arpreply->opcode != htons(ARP_REPLY))
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if (arpreply->opcode != htons(ARPOP_REPLY))
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return 0;
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if (memcmp(arpreply->sipaddr, ptr, sizeof(in_addr)) != 0)
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return 0;
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@ -474,10 +486,10 @@ int ip_transmit(int len, const void *buf)
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break;
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if (i == ETH_ALEN) { /* Need to do arp request */
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arpreq.hwtype = htons(1);
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arpreq.protocol = htons(IP);
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arpreq.protocol = htons(ETH_P_IP);
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arpreq.hwlen = ETH_ALEN;
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arpreq.protolen = 4;
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arpreq.opcode = htons(ARP_REQUEST);
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arpreq.opcode = htons(ARPOP_REQUEST);
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memcpy(arpreq.shwaddr, arptable[ARP_CLIENT].node, ETH_ALEN);
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memcpy(arpreq.sipaddr, &arptable[ARP_CLIENT].ipaddr, sizeof(in_addr));
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memset(arpreq.thwaddr, 0, ETH_ALEN);
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@ -974,9 +986,9 @@ int await_reply(reply_t reply, int ival, void *ptr, long timeout)
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arpreply = (struct arprequest *)&nic.packet[ETH_HLEN];
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memcpy(&tmp, arpreply->tipaddr, sizeof(in_addr));
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if ((arpreply->opcode == htons(ARP_REQUEST)) &&
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if ((arpreply->opcode == htons(ARPOP_REQUEST)) &&
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(tmp == arptable[ARP_CLIENT].ipaddr.s_addr)) {
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arpreply->opcode = htons(ARP_REPLY);
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arpreply->opcode = htons(ARPOP_REPLY);
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memcpy(arpreply->tipaddr, arpreply->sipaddr, sizeof(in_addr));
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memcpy(arpreply->thwaddr, arpreply->shwaddr, ETH_ALEN);
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memcpy(arpreply->sipaddr, &arptable[ARP_CLIENT].ipaddr, sizeof(in_addr));
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@ -119,7 +119,7 @@
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#define NULL ((void *)0)
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#endif
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#include "if_ether.h"
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#include <gpxe/if_ether.h>
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enum {
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ARP_CLIENT, ARP_SERVER, ARP_GATEWAY,
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@ -144,7 +144,7 @@ enum {
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#define ENCAP_OPT
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#endif
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#include "if_arp.h"
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#include <gpxe/if_arp.h>
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#include "ip.h"
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#include "udp.h"
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#include "old_tcp.h"
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100
src/include/gpxe/if_arp.h
Normal file
100
src/include/gpxe/if_arp.h
Normal file
@ -0,0 +1,100 @@
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#ifndef _IF_ARP_H
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#define _IF_ARP_H
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/** @file
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*
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* Address Resolution Protocol constants and types
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*
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*/
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#include <stdint.h>
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/* ARP protocol HARDWARE identifiers. */
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#define ARPHRD_NETROM 0 /**< from KA9Q: NET/ROM pseudo */
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#define ARPHRD_ETHER 1 /**< Ethernet 10Mbps */
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#define ARPHRD_EETHER 2 /**< Experimental Ethernet */
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#define ARPHRD_AX25 3 /**< AX.25 Level 2 */
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#define ARPHRD_PRONET 4 /**< PROnet token ring */
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#define ARPHRD_CHAOS 5 /**< Chaosnet */
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#define ARPHRD_IEEE802 6 /**< IEEE 802.2 Ethernet/TR/TB */
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#define ARPHRD_ARCNET 7 /**< ARCnet */
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#define ARPHRD_APPLETLK 8 /**< APPLEtalk */
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#define ARPHRD_DLCI 15 /**< Frame Relay DLCI */
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#define ARPHRD_ATM 19 /**< ATM */
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#define ARPHRD_METRICOM 23 /**< Metricom STRIP (new IANA id) */
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#define ARPHRD_IEEE1394 24 /**< IEEE 1394 IPv4 - RFC 2734 */
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#define ARPHRD_EUI64 27 /**< EUI-64 */
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#define ARPHRD_INFINIBAND 32 /**< InfiniBand */
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/* ARP protocol opcodes. */
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#define ARPOP_REQUEST 1 /**< ARP request */
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#define ARPOP_REPLY 2 /**< ARP reply */
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#define ARPOP_RREQUEST 3 /**< RARP request */
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#define ARPOP_RREPLY 4 /**< RARP reply */
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#define ARPOP_InREQUEST 8 /**< InARP request */
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#define ARPOP_InREPLY 9 /**< InARP reply */
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#define ARPOP_NAK 10 /**< (ATM)ARP NAK */
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/**
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* An ARP header
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*
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* This contains only the fixed-size portions of an ARP header; for
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* other fields use the arp_{sender,target}_{ha,pa} family of
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* functions.
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*/
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struct arphdr {
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/** Link-layer protocol
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*
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* This is an ARPHRD_XXX constant
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*/
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uint16_t ar_hrd;
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/** Network-layer protocol
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*
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* This is, for Ethernet, an ETH_P_XXX constant.
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*/
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uint16_t ar_pro;
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/** Link-layer address length */
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uint8_t ar_hln;
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/** Network-layer address length */
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uint8_t ar_pln;
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/** ARP opcode */
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uint16_t ar_op;
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} __attribute__ (( packed ));
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/** ARP packet sender hardware address
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*
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* @v arphdr ARP header
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* @ret ar_sha Sender hardware address
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*/
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static inline void * arp_sender_ha ( struct arphdr *arphdr ) {
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return ( ( ( void * ) arphdr ) + sizeof ( *arphdr ) );
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}
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/** ARP packet sender protocol address
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*
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* @v arphdr ARP header
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* @ret ar_spa Sender protocol address
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*/
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static inline void * arp_sender_pa ( struct arphdr *arphdr ) {
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return ( arp_sender_ha ( arphdr ) + arphdr->ar_hln );
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}
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/** ARP packet target hardware address
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*
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* @v arphdr ARP header
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* @ret ar_tha Target hardware address
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*/
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static inline void * arp_target_ha ( struct arphdr *arphdr ) {
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return ( arp_sender_pa ( arphdr ) + arphdr->ar_pln );
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}
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/** ARP packet target protocol address
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*
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* @v arphdr ARP header
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* @ret ar_tpa Target protocol address
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*/
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static inline void * arp_target_pa ( struct arphdr *arphdr ) {
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return ( arp_target_ha ( arphdr ) + arphdr->ar_hln );
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}
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#endif /* _IF_ARP_H */
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@ -1,13 +1,7 @@
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#ifndef _IF_ETHER_H
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#define _IF_ETHER_H
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/*
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I'm moving towards the defined names in linux/if_ether.h for clarity.
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The confusion between 60/64 and 1514/1518 arose because the NS8390
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counts the 4 byte frame checksum in the incoming packet, but not
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in the outgoing packet. 60/1514 are the correct numbers for most
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if not all of the other NIC controllers.
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*/
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#include <stdint.h>
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#define ETH_ALEN 6 /* Size of Ethernet address */
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#define ETH_HLEN 14 /* Size of ethernet header */
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@ -24,4 +18,14 @@
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#define ETH_P_IPV6 0x86DD /* IPv6 over blueblook */
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#define ETH_P_SLOW 0x8809 /* Ethernet slow protocols */
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/** An Ethernet link-layer header */
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struct ethhdr {
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/** Destination MAC address */
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uint8_t h_dest[ETH_ALEN];
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/** Source MAC address */
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uint8_t h_source[ETH_ALEN];
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/** Protocol ID */
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uint16_t h_protocol;
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} __attribute__ ((packed));
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#endif /* _IF_ETHER_H */
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@ -1,23 +0,0 @@
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#ifndef _IF_ARP_H
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#define _IF_ARP_H
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#define ARP_REQUEST 1
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#define ARP_REPLY 2
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/*
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* A pity sipaddr and tipaddr are not longword aligned or we could use
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* in_addr. No, I don't want to use #pragma packed.
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*/
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struct arprequest {
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uint16_t hwtype;
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uint16_t protocol;
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uint8_t hwlen;
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uint8_t protolen;
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uint16_t opcode;
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uint8_t shwaddr[6];
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uint8_t sipaddr[4];
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uint8_t thwaddr[6];
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uint8_t tipaddr[4];
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} PACKED;
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#endif /* _IF_ARP_H */
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