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\ Hypervisor Software File: arp-h.fth
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id: @(#)arp-h.fth 1.1 04/09/07
copyright: Copyright 2004 Sun Microsystems, Inc. All Rights Reserved
copyright: Use is subject to license terms.
/w field >arp-hwtype \ Format of hardware address
/w field >arp-prtype \ Format of protocol address
/c field >arp-hwlen \ Length of hardware address
/c field >arp-prlen \ Length of protocol address
/w field >arp-op \ ARP Opcode
: >arp-sha ( pkt -- adr ) /arp-header + ;
: >arp-spa ( pkt -- adr ) /arp-header + if-addrlen@ + ;
: >arp-tha ( pkt -- adr ) /arp-header + if-addrlen@ + /ip-addr + ;
: >arp-tpa ( pkt -- adr ) /arp-header + if-addrlen@ 2* + /ip-addr + ;
/arp-header if-addrlen@ /ip-addr + 2* +
\ ARP cache entry structure
/ip-addr field >ae-ipaddr \ Protocol Address
MAX_HWADDR_LEN field >ae-hwaddr \ Hardware Address
dup aligned over - field >ae-pad \ For structure alignment
/queue-head field >ae-pktq \ Queue of pending packets
/timer field >ae-timer \ "Aging" timer entry
/l field >ae-state \ State of this entry
/l field >ae-attempts \ Number of retries so far
0 constant AE_FREE \ Entry is free
1 constant AE_PENDING \ Entry is awaiting address resolution
2 constant AE_RESOLVED \ Entry is valid
0 instance value arp-table \ ARP cache
d# 8 constant ARP_TABLE_SIZE \ Size of ARP cache
d# 4 constant ARP_MAX_RETRIES \ Maximum number of retries
d# 1000 constant ARP_RETRY_INTERVAL \ Minimum retry interval
d# 600000 constant ARP_ENTRY_TTL \ Lifetime of valid ARP cache entry
: ae-state@ ( adr -- state ) >ae-state l@ ;
: ae-state! ( state adr -- ) >ae-state l! ;
: index>arp-entry ( index -- adr ) /arp-entry * arp-table + ;
projects / OpenSPARC-T2-SAM / blob