cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

config3270.sh (2009B)

      1#!/bin/sh
      2#
      3# config3270 -- Autoconfigure /dev/3270/* and /etc/inittab
      4#
      5#       Usage:
      6#               config3270
      7#
      8#       Output:
      9#               /tmp/mkdev3270
     10#
     11#       Operation:
     12#               1. Run this script
     13#               2. Run the script it produces: /tmp/mkdev3270
     14#               3. Issue "telinit q" or reboot, as appropriate.
     15#
     16P=/proc/tty/driver/tty3270
     17ROOT=
     18D=$ROOT/dev
     19SUBD=3270
     20TTY=$SUBD/tty
     21TUB=$SUBD/tub
     22SCR=$ROOT/tmp/mkdev3270
     23SCRTMP=$SCR.a
     24GETTYLINE=:2345:respawn:/sbin/mingetty
     25INITTAB=$ROOT/etc/inittab
     26NINITTAB=$ROOT/etc/NEWinittab
     27OINITTAB=$ROOT/etc/OLDinittab
     28ADDNOTE=\\"# Additional mingettys for the 3270/tty* driver, tub3270 ---\\"
     29
     30if ! ls $P > /dev/null 2>&1; then
     31	modprobe tub3270 > /dev/null 2>&1
     32fi
     33ls $P > /dev/null 2>&1 || exit 1
     34
     35# Initialize two files, one for /dev/3270 commands and one
     36# to replace the /etc/inittab file (old one saved in OLDinittab)
     37echo "#!/bin/sh" > $SCR || exit 1
     38echo " " >> $SCR
     39echo "# Script built by /sbin/config3270" >> $SCR
     40if [ ! -d /dev/dasd ]; then
     41	echo rm -rf "$D/$SUBD/*" >> $SCR
     42fi
     43echo "grep -v $TTY $INITTAB > $NINITTAB" > $SCRTMP || exit 1
     44echo "echo $ADDNOTE >> $NINITTAB" >> $SCRTMP
     45if [ ! -d /dev/dasd ]; then
     46	echo mkdir -p $D/$SUBD >> $SCR
     47fi
     48
     49# Now query the tub3270 driver for 3270 device information
     50# and add appropriate mknod and mingetty lines to our files
     51echo what=config > $P
     52while read devno maj min;do
     53	if [ $min = 0 ]; then
     54		fsmaj=$maj
     55		if [ ! -d /dev/dasd ]; then
     56			echo mknod $D/$TUB c $fsmaj 0 >> $SCR
     57			echo chmod 666 $D/$TUB >> $SCR
     58		fi
     59	elif [ $maj = CONSOLE ]; then
     60		if [ ! -d /dev/dasd ]; then
     61			echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
     62		fi
     63	else
     64		if [ ! -d /dev/dasd ]; then
     65			echo mknod $D/$TTY$devno c $maj $min >>$SCR
     66			echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
     67		fi
     68		echo "echo t$min$GETTYLINE $TTY$devno >> $NINITTAB" >> $SCRTMP
     69	fi
     70done < $P
     71
     72echo mv $INITTAB $OINITTAB >> $SCRTMP || exit 1
     73echo mv $NINITTAB $INITTAB >> $SCRTMP
     74cat $SCRTMP >> $SCR
     75rm $SCRTMP
     76exit 0