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Documentation / s390 / config3270.sh




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Based on kernel version 3.16. Page generated on 2014-08-06 21:40 EST.

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	#
16	P=/proc/tty/driver/tty3270
17	ROOT=
18	D=$ROOT/dev
19	SUBD=3270
20	TTY=$SUBD/tty
21	TUB=$SUBD/tub
22	SCR=$ROOT/tmp/mkdev3270
23	SCRTMP=$SCR.a
24	GETTYLINE=:2345:respawn:/sbin/mingetty
25	INITTAB=$ROOT/etc/inittab
26	NINITTAB=$ROOT/etc/NEWinittab
27	OINITTAB=$ROOT/etc/OLDinittab
28	ADDNOTE=\\"# Additional mingettys for the 3270/tty* driver, tub3270 ---\\"
29	
30	if ! ls $P > /dev/null 2>&1; then
31		modprobe tub3270 > /dev/null 2>&1
32	fi
33	ls $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)
37	echo "#!/bin/sh" > $SCR || exit 1
38	echo " " >> $SCR
39	echo "# Script built by /sbin/config3270" >> $SCR
40	if [ ! -d /dev/dasd ]; then
41		echo rm -rf "$D/$SUBD/*" >> $SCR
42	fi
43	echo "grep -v $TTY $INITTAB > $NINITTAB" > $SCRTMP || exit 1
44	echo "echo $ADDNOTE >> $NINITTAB" >> $SCRTMP
45	if [ ! -d /dev/dasd ]; then
46		echo mkdir -p $D/$SUBD >> $SCR
47	fi
48	
49	# Now query the tub3270 driver for 3270 device information
50	# and add appropriate mknod and mingetty lines to our files
51	echo what=config > $P
52	while 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
70	done < $P
71	
72	echo mv $INITTAB $OINITTAB >> $SCRTMP || exit 1
73	echo mv $NINITTAB $INITTAB >> $SCRTMP
74	cat $SCRTMP >> $SCR
75	rm $SCRTMP
76	exit 0
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