Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / obp / obp / pkg / netinet / in-h.fth

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\ Hypervisor Software File: in-h.fth
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id: @(#)in-h.fth 1.1 04/09/07
purpose: IP layer constants and support routines
copyright: Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

\ Constants and structures defined by IANA, and other support routines.

headerless

\ Version numbers
d#  4  constant	IP_VERSION

\ Protocols
1      constant  IPPROTO_ICMP
d#  6  constant  IPPROTO_TCP
d# 17  constant  IPPROTO_UDP

\ Port numbers
d#   67  constant IPPORT_BOOTPS
d#   68  constant IPPORT_BOOTPC
d#   69  constant IPPORT_TFTP
d#   80  constant IPPORT_HTTP
d# 8080  constant IPPORT_HTTP_ALT

\ IPV4 address structure
d#  4  constant  /ip-addr

\ IPV4 special addresses
create inaddr-any            0 c,     0 c,     0 c,     0 c,
create inaddr-broadcast  h# ff c, h# ff c, h# ff c, h# ff c,

\ ntohw@, htonw!, ntohl@, and htonl! manage conversion of 16 and 32 bit
\ quantities between network and host byte order. 

: ntohw@ ( adr -- w )
   dup  ca1+ c@  swap c@  bwjoin
;

: htonw! ( w adr -- )
   >r  wbsplit  r@ c!  r> ca1+ c!
;

: ntohl@ ( adr -- l )
   dup  3 ca+ c@  swap dup 2 ca+ c@  swap dup ca1+ c@  swap c@ bljoin
;

: htonl! ( l adr -- )
   >r lbsplit  r@ c!  r@ ca1+ c!  r@ 2 ca+ c!  r> 3 ca+ c!
;

\ Other support functions.

: ip=   ( adr1 adr2 -- flag )  /ip-addr comp 0=  ;
: ip<>  ( adr1 adr2 -- flag )  /ip-addr comp 0<> ;

: copy-ip-addr ( src dst -- )  /ip-addr move ;

: ip=broadcast? ( ipaddr -- flag )
   dup inaddr-broadcast ip=  swap inaddr-any ip=  or
;

: inaddr-any? ( ipaddr -- flag )  inaddr-any ip= ;

: .ipaddr ( ipaddr -- )
   base @ >r  decimal
   /ip-addr 1- 0  do dup c@ (u.) type ." ."  ca1+ loop c@ (u.) type
   r> base !
;

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