#!/bin/sh
#
# Copyright (c) 2014 Juniper Networks, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# $FreeBSD$
#
#
# Convert a NIC driver to use the procdural API.
# It doesn't take care of all the # cases yet,
# but still does about 95% of work.
#
# Author: Sreekanth Rupavatharam
#
if [ $# -lt 1 ]
then
echo " $0 <driver source (e.g., if_em.c)>";
exit 1;
fi
# XXX - This needs to change if the data structure uses different name
__ifp__="ifp";
file=$1
rotateCursor() {
case $toggle
in
1)
printf " \\ "
printf "\b\b"
toggle="2"
;;
2)
printf " | "
printf "\b\b\b"
toggle="3"
;;
3)
printf " / "
printf "\b\b\b"
toggle="4"
;;
*)
printf " - "
printf "\b\b\b"
toggle="1"
;;
esac
}
handle_set() {
# Handle the case where $__ifp__->if_blah = XX;
line=$1
set=`echo $line| grep "$__ifp__->.* = "`
if [ ! -z "$set" ]
then
word=`echo $line | awk -F "if_" ' { print $2 }' | awk -F" =" '{ print $1 }'`
value=`echo $line | awk -F "=" '{ print $2 }' | sed -e 's/;//g'`
new=`echo if_set$word"\($__ifp__,"$value");"`
new=`echo $new | sed -e 's/&/\\\&/'`
old=`echo $line|sed -e 's/^[ ]*//'`
line=`echo $line| sed -e's/'$old'/'$new'/g'`
return 0
fi
return 1
}
handle_inc() {
line=$1
inc=`echo $line | grep "$__ifp__->.*++\|++$__ifp__->.*"`
if [ ! -z "$inc" ]
then
word=`echo $line | awk -F"if_" '{ print $2 }'|awk -F"\+" '{ print $1}'`
value=' 1';
old=`echo $line|sed -e 's/^[ ]*//'`
new=`echo if_inc$word"\($__ifp__,"$value");"`
new=`echo $new | sed -e 's/&/\\\&/'`
line=`echo $line| sed -e's/'$old'/'$new'/g'`
return 0;
fi
return 1;
}
handle_add() {
line=$1
add=`echo $line|grep "$__ifp__->.*+= "`
if [ ! -z "$add" ]
then
word=`echo $line | awk -F"if_" '{ print $2 }'|awk '{ print $1}'`
value=`echo $line | awk -F"=" '{ print $2}' | sed -e 's/;//g'`
new=`echo if_inc$word"\($__ifp__,$value);"`
new=`echo $new | sed -e 's/&/\\\&/'`
old=`echo $line|sed -e 's/^[ ]*//'`
line=`echo $line| sed -e's/'$old'/'$new'/g'`
return 0
fi
return 1;
}
handle_or() {
line=$1
or=`echo $line|grep "$__ifp__->.*|= "`
if [ ! -z "$or" ]
then
word=`echo $line | awk -F"if_" '{ print $2 }'|awk '{ print $1}'`
value=`echo $line | awk -F"=" '{ print $2}' | sed -e 's/;//g'`
new=`echo if_set${word}bit"($__ifp__,$value, 0);"`
new=`echo $new | sed -e 's/&/\\\&/'`
#line=`echo $line|sed -e 's/&/\\&/'`
old=`echo $line|sed -e 's/^[ ]*//'`
line=`echo $line| sed -e's/'$old'/'$new'/g'`
return 0;
fi
return 1;
}
handle_and() {
line=$1
or=`echo $line|grep "$__ifp__->.*&= "`
if [ ! -z "$or" ]
then
word=`echo $line | awk -F"if_" '{ print $2 }'|awk '{ print $1}'`
value=`echo $line | awk -F"=" '{ print $2}' | sed -e 's/;//g'`
value=`echo $value | sed -e's/~//g'`
new=`echo if_set${word}bit"\($__ifp__, 0,$value);"`
new=`echo $new | sed -e 's/&/\\\&/'`
old=`echo $line|sed -e 's/^[ ]*//'`
line=`echo $line| sed -e's/'$old'/'$new'/g'`
return 0;
fi
return 1;
}
handle_toggle() {
line=$1
if [ ! -z `echo $line | grep "\^="` ]
then
line=`echo $line | sed -e 's/'"$__ifp__"'->if_\(.*\) ^=\(.*\);/if_toggle\1('"$__ifp__"',\2);/g'`
return 0;
fi
return 1
}
# XXX - this needs updating
handle_misc() {
line=$1
get=`echo $line | grep "if_capabilities\|if_flags\|if_softc\|if_capenable\|if_mtu\|if_drv_flags"`
if [ ! -z "$get" ]
then
word=`echo $line |awk -F"$__ifp__->if_" '{ print $2 }' | \
sed -e's/[^a-zA-Z0-9_]/\@/'|awk -F"\@" '{ print $1}'`
old=`echo "$__ifp__->if_"${word}`
new=`echo "if_get"${word}"($__ifp__)"`
new=`echo $new | sed -e 's/&/\\\&/'`
line=`echo $line| sed -e's/'$old'/'$new'/g'`
return 0;
fi
return 1;
}
replace_str ()
{
line=$1
orig=$2
new=$3
line=`echo $line | sed -e 's/'"$orig"'\(.*\)/'"$new"'\1/g'`
return 0;
}
# Handle special cases which do not fall under regular patterns
handle_special ()
{
line=$1
replace_str $line "(\*$__ifp__->if_input)" "if_input"
replace_str $line "if_setinit" "if_setinitfn"
replace_str $line "if_setioctl" "if_setioctlfn"
replace_str $line "if_getdrv_flags" "if_getdrvflags"
replace_str $line "if_setdrv_flagsbit" "if_setdrvflagbits"
replace_str $line "if_setstart" "if_setstartfn"
replace_str $line "if_sethwassistbit" "if_sethwassistbits"
replace_str $line "ifmedia_init" "ifmedia_init_drv"
replace_str $line "IFQ_DRV_IS_EMPTY(&$__ifp__->if_snd)" "if_sendq_empty($__ifp__)"
replace_str $line "IFQ_DRV_PREPEND(&$__ifp__->if_snd" "if_sendq_prepend($__ifp__"
replace_str $line "IFQ_SET_READY(&ifp->if_snd)" "if_setsendqready($__ifp__)"
line=`echo $line | sed -e 's/IFQ_SET_MAXLEN(&'$__ifp__'->if_snd, \(.*\))/if_setsendqlen('$__ifp__', \1)/g'`
line=`echo $line | sed -e 's/IFQ_DRV_DEQUEUE(&'$__ifp__'->if_snd, \(.*\))/\1 = if_dequeue('$__ifp__')/g'`
return 0
}
if [ -e $file.tmp ]
then
rm $file.tmp
fi
IFS=
echo -n "Conversion for $file started, please wait: "
FAIL_PAT="XXX - DRVAPI"
count=0
cat $1 | while read -r line
do
count=`expr $count + 1`
rotateCursor
pat=`echo $line | grep "$__ifp__->"`
while [ "$pat" != "" ]
do
pat=`echo $line | grep "$__ifp__->"`
if [ ! -z `echo $pat | grep "$FAIL_PAT"` ]
then
break;
fi
handle_set $line
if [ $? != 0 ]
then
handle_inc $line
fi
if [ $? != 0 ]
then
handle_add $line
fi
if [ $? != 0 ]
then
handle_or $line
fi
if [ $? != 0 ]
then
handle_and $line
fi
if [ $? != 0 ]
then
handle_toggle $line
fi
if [ $? != 0 ]
then
handle_misc $line
fi
if [ $? != 0 ]
then
handle_special $line
fi
if [ ! -z `echo $line | grep "$__ifp__->"` ]
then
line=`echo $line | sed -e 's:$: \/* '${FAIL_PAT}' *\/:g'`
fi
done
line=`echo "$line" | sed -e 's:VLAN_CAPABILITIES('$__ifp__'):if_vlancap('$__ifp__'):g'`
# Replace the ifnet * with if_t
if [ ! -z `echo $line | grep "struct ifnet"` ]
then
line=`echo $line | sed -e 's/struct ifnet[ \t]*\*/if_t /g'`
fi
echo "$line" >> $file.tmp
done
echo ""
count=`grep $FAIL_PAT $file.tmp | wc -l`
if [ $count -gt 0 ]
then
echo "$count lines could not be converted to DRVAPI"
echo "Look for /* $FAIL_PAT */ in the converted file"
fi
echo "original $file has been moved to $file.orig"
mv $file $file.orig
mv $file.tmp $file
