minix3/commands/MAKEDEV/MAKEDEV.sh

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#!/bin/sh
#
# MAKEDEV 3.3 - Make special devices. Author: Kees J. Bot
# 3.4 - Rewritten to allow mtree line to be printed, Lionel A. Sambuc
# also use getopt for argument parsing
umask 077
MTREE=false
STD=false
RAMDISK=false
ECHO=
EXIT=0
# console => lp tty log
# boot => kmem mem null ram zero
RAMDISK_DEVICES="
boot
console
input
c0d0 c0d0p0 c0d0p0s0 c0d1 c0d1p0 c0d1p0s0
c0d2 c0d2p0 c0d2p0s0 c0d3 c0d3p0 c0d3p0s0
c0d4 c0d4p0 c0d4p0s0 c0d5 c0d5p0 c0d5p0s0
c0d6 c0d6p0 c0d6p0s0 c0d7 c0d7p0 c0d7p0s0
c1d0 c1d0p0 c1d0p0s0 c1d1 c1d1p0 c1d1p0s0
c1d2 c1d2p0 c1d2p0s0 c1d3 c1d3p0 c1d3p0s0
c1d4 c1d4p0 c1d4p0s0 c1d5 c1d5p0 c1d5p0s0
c1d6 c1d6p0 c1d6p0s0 c1d7 c1d7p0 c1d7p0s0
fd0 fd1 fd0p0 fd1p0
ttyc1 ttyc2 ttyc3 tty00 tty01 tty02 tty03
ttyp0 ttyp1 ttyp2 ttyp3 ttyp4 ttyp5 ttyp6 ttyp7 ttyp8 ttyp9
ttypa ttypb ttypc ttypd ttype ttypf
ttyq0 ttyq1 ttyq2 ttyq3 ttyq4 ttyq5 ttyq6 ttyq7 ttyq8 ttyq9
ttyqa ttyqb ttyqc ttyqd ttyqe ttyqf
"
#eth => ip tcp udp
STD_DEVICES="
${RAMDISK_DEVICES}
bmp085b1s77 bmp085b2s77 bmp085b3s77
eepromb1s50 eepromb1s51 eepromb1s52 eepromb1s53
eepromb1s54 eepromb1s55 eepromb1s56 eepromb1s57
eepromb2s50 eepromb2s51 eepromb2s52 eepromb2s53
eepromb2s54 eepromb2s55 eepromb2s56 eepromb2s57
eepromb3s50 eepromb3s51 eepromb3s52 eepromb3s53
eepromb3s54 eepromb3s55 eepromb3s56 eepromb3s57
eth fb0 fbd filter hello
i2c-1 i2c-2 i2c-3
klog random
sht21b1s40 sht21b2s40 sht21b3s40
tsl2550b1s39 tsl2550b2s39 tsl2550b3s39
uds
vnd0 vnd0p0 vnd0p0s0 vnd1 vnd1p0 vnd1p0s0
vnd2 vnd3 vnd4 vnd5 vnd6 vnd7
"
#makedev ${dev} $type ${major} ${minor} ${uname} ${gname} ${permissions} [link_target]
#When called for a link, major and minor are ignored
makedev()
{
# Check that all the arguments are there, we trust the caller to put
# values which make sens.
[ $# -eq 7 ] || [ $# -eq 8 ] || return 1;
local _dev=$1
local __type=$2
local _major=$3
local _minor=$4
local _uname=$5
local _gname=$6
local _mode=$7
case ${__type} in
b)_type=block;;
c) _type=char;;
l) _type=link; _target=$8;;
*) return 2;;
esac
if [ ${MTREE} = "yes" ]
then
if [ ${_type} = "link" ]
then
echo ./dev/${_dev} type=${_type} \
uname=${_uname} gname=${_gname} mode=${_mode} \
link=${_target}
else
echo ./dev/${_dev} type=${_type} \
uname=${_uname} gname=${_gname} mode=${_mode} \
device=native,${_major},${_minor}
fi
else
if [ ${_type} = "link" ]
then
${ECHO} ln -f ${_target} ${_dev}
else
${ECHO} mknod ${_dev} ${__type} ${_major} ${_minor}
${ECHO} chmod ${_mode} ${_dev}
${ECHO} chown ${_uname}:${_gname} ${_dev}
fi
fi
}
# no_return usage()
usage()
{
cat >&2 <<EOF
Usage: $0 [-n|-m] [-s|-r] key ...
-n: print the commands instead of executing them
-m: print mtree(8) line
-s: standard set of devices
-r: reduced for ramdisk set of devices
Where key is one of the following:
ram mem kmem null boot zero # One of these makes all these memory devices
fb0 # Make /dev/fb0
i2c-1 i2c-2 i2c-3 # Make /dev/i2c-[1-3]
tsl2550b{1,3}s39 # TSL2550 Ambient Light Sensors
sht21b{1,3}s40 # SHT21 Relative Humidity and Temperature Sensors
bmp085b{1,3}s77 # BMP085 Pressure and Temperature Sensors
fd0 fd1 ... # Floppy devices for drive 0, 1, ...
fd0p0 fd1p0 ... # Make floppy partitions fd0p[0-3], fd1p[0-3], ...
c0d0 c0d1 ... # Make disks c0d0, c0d1, ...
c0d0p0 c0d1p0 ... # Make partitions c0d0p[0-3], c0d1p[0-3], ...
c0d0p0s0 c0d1p0s0 ... # Subparts c0d0p[0-3]s[0-3], c0d1p[0-3]s[0-3], ...
c1d0(p0)(s0) # Likewise for controller 1
c0t0 c0t1 c1t0 ... # Make tape devices c0t0, c0t0n, c0t1, ...
console lp tty log # One of these makes all four
ttyc1 ... ttyc7 # Virtual consoles
tty00 ... tty03 # Make serial lines
ttyp0 ... ttyq0 ... # Make tty, pty pairs
eth ip tcp udp # One of these makes some TCP/IP devices
audio mixer # Make audio devices
klog # Make /dev/klog
random # Make /dev/random, /dev/urandom
uds # Make /dev/uds
filter # Make /dev/filter
fbd # Make /dev/fbd
hello # Make /dev/hello
video # Make /dev/video
vnd0 vnd0p0 vnd0p0s0 .. # Make vnode disks /dev/vnd[0-7] and (sub)partitions
input # Make /dev/kbdmux, /dev/kbd[0-3], idem /dev/mouse~
EOF
exit 1
}
# Parse options
while getopts "nmrs" arg
do
case "$arg" in
n)
ECHO=echo
;;
m)
MTREE=yes
;;
r)
RAMDISK=yes
;;
s)
STD=yes
;;
h|\?)
usage
;;
esac
done
if [ ${STD} = "yes" ]
then
DEVICES=${STD_DEVICES}
elif [ ${RAMDISK} = "yes" ]
then
DEVICES=${RAMDISK_DEVICES}
else
while [ $OPTIND -gt 1 ]
do
shift
OPTIND=$((${OPTIND} - 1))
done
while [ ! -z "$1" ]
do
DEVICES="${DEVICES} $1"
shift
done
fi
for dev in ${DEVICES}
do
# Reset the defaults
uname=root
gname=operator
permissions=600
case ${dev} in
c0*) major=3 ;;
c1*) major=8 ;;
c2*) major=10 ;;
c3*) major=12 ;;
vnd*) # Whole vnode disk devices.
disk=`expr ${dev} : '...\\(.\\)'`
major=`expr ${disk} + 56`
;;
esac
# The following is lexicographicaly ordered
case ${dev} in
audio|mixer)
# Audio devices.
makedev audio c 13 0 ${uname} ${gname} 666
makedev mixer c 13 1 ${uname} ${gname} 666
;;
bmp085b[1-3]s77)
# Weather Cape: temperature & pressure sensor
bus=`expr ${dev} : 'bmp085b\\(.*\\)s77'` #bus number
major=`expr ${bus} + 52`
makedev bmp085b${bus}s77 c ${major} 0 ${uname} ${gname} 444
;;
c[0-3]d[0-7])
# Whole disk devices.
disk=`expr ${dev} : '...\\(.\\)'`
minor=`expr ${disk} '*' 5`
makedev ${dev} b ${major} ${minor} ${uname} ${gname} ${permissions}
;;
c[0-3]d[0-7]p[0-3])
# Disk primary partitions.
prefix=`expr ${dev} : '\\(.*\\).'`
disk=`expr ${dev} : '...\\(.\\)'`
for p in 0 1 2 3
do
minor=`expr ${disk} '*' 5 + 1 + ${p}`
makedev ${prefix}${p} b ${major} ${minor} \
${uname} ${gname} ${permissions}
done
;;
c[0-3]d[0-7]p[0-3]s[0-3])
# Disk subpartition.
prefix=`expr ${dev} : '\\(.*\\)...'`
disk=`expr ${dev} : '...\\(.\\)'`
for p in 0 1 2 3
do
for s in 0 1 2 3
do
minor=`expr 128 + ${disk} '*' 16 + ${p} '*' 4 + ${s}`
makedev ${prefix}${p}s${s} b ${major} ${minor} \
${uname} ${gname} ${permissions}
done
done
;;
c[0-3]t[0-7]|c[0-3]t[0-7]n)
# Tape devices.
prefix=`expr ${dev} : '\\(....\\)'`
tape=`expr ${dev} : '...\\(.\\)'`
minor=`expr 64 + ${tape} '*' 2`
makedev ${prefix}n c ${major} ${minor} ${uname} ${gname} 660
makedev ${prefix} c ${major} `expr ${minor} + 1` ${uname} ${gname} 660
;;
console|lp|tty|log|video)
# Console, line printer, anonymous tty, diagnostics device, video.
makedev console c 4 0 ${uname} tty ${permissions}
makedev tty c 5 0 ${uname} ${gname} 666
makedev lp c 6 0 daemon daemon 200
makedev log c 4 15 ${uname} ${gname} 222
makedev video c 4 125 ${uname} ${gname} ${permissions}
;;
eepromb[1-3]s5[0-7])
# cat24c256 driver
bus=`expr ${dev} : 'eepromb\\(.*\\)s'`
# configurable part of slave addr
slave_low=`expr ${dev} : 'eepromb.s5\\(.*\\)'`
major=`expr ${bus} '*' 8 + ${slave_low} + 17`
makedev eepromb${bus}s5${slave_low} b ${major} 0 ${uname} ${gname} ${permissions}
;;
eth|ip|tcp|udp|eth0|ip0|tcp0|udp0)
# TCP/IP devices.
makedev ipstat c 7 0 ${uname} ${gname} 666
makedev eth0 c 7 1 ${uname} ${gname} ${permissions}
makedev ip0 c 7 2 ${uname} ${gname} ${permissions}
makedev tcp0 c 7 3 ${uname} ${gname} 666
makedev udp0 c 7 4 ${uname} ${gname} 666
# Default interface
makedev eth c 7 1 ${uname} ${gname} ${permissions}
makedev ip c 7 2 ${uname} ${gname} ${permissions}
makedev tcp c 7 3 ${uname} ${gname} 666
makedev udp c 7 4 ${uname} ${gname} 666
;;
fb0)
# Framebuffer driver
makedev ${dev} c 19 0 ${uname} ${gname} 644
;;
fbd)
# Faulty block device driver
makedev ${dev} b 14 0 ${uname} ${gname} ${permissions}
;;
fd[0-3])
# Floppy disk drive N has minor N.
minor=`expr ${dev} : '..\\(.\\)'`
makedev ${dev} b 2 ${minor} ${uname} ${gname} 666
;;
fd[0-3]p[0-3])
# Floppy disk partitions.
prefix=`expr ${dev} : '\\(.*\\).'`
drive=`expr ${dev} : '..\\(.\\)'`
for p in 0 1 2 3
do
minor=`expr 112 + ${drive} + ${p} '*' 4`
makedev ${prefix}${p} b 2 ${minor} \
${uname} ${gname} 666
done
;;
filter)
# Filter driver
makedev ${dev} b 11 0 ${uname} ${gname} ${permissions}
;;
hello)
# Hello driver
makedev ${dev} c 17 0 ${uname} ${gname} 644
;;
i2c-[1-3])
# i2c driver
bus=`expr ${dev} : '....\\(.*\\)'` # bus number
# least significant digit of major
major_low=`expr ${dev} : '....\\(.*\\)'`
major_low=`expr ${major_low} - 1`
makedev "i2c-${bus}" c 2${major_low} 0 ${uname} ${gname} ${permissions}
;;
input)
# Input server
makedev kbdmux c 64 0 ${uname} ${gname} ${permissions}
makedev mousemux c 64 64 ${uname} ${gname} ${permissions}
for n in 0 1 2 3
do
minor_keyboard=`expr ${n} + 1`
minor_mouse=`expr ${n} + 65`
makedev kbd${n} c 64 ${minor_keyboard} ${uname} ${gname} ${permissions}
makedev mouse${n} c 64 ${minor_mouse} ${uname} ${gname} ${permissions}
done
;;
klog)
# Logging device.
makedev ${dev} c 15 0 ${uname} ${gname} ${permissions}
;;
pc[0-3]|at[0-3]|qd[0-3]|ps[0-3]|pat[0-3]|qh[0-3]|PS[0-3])
# Obsolete density locked floppy disk drive n.
drive=`expr ${dev} : '.*\\(.\\)'`
minor=${drive}
for prefix in pc at qd ps pat qh PS
do
makedev ${prefix}${drive} b 2 ${minor} \
${uname} ${gname} 666
minor=`expr ${minor} + 4`
done
;;
ram|mem|kmem|null|boot|zero|imgrd)
# Memory devices.
makedev ram b 1 0 ${uname} kmem ${permissions}
makedev mem c 1 1 ${uname} kmem 640
makedev kmem c 1 2 ${uname} kmem 640
makedev null c 1 3 ${uname} kmem 666
makedev boot b 1 4 ${uname} kmem ${permissions}
makedev zero c 1 5 ${uname} kmem 644
makedev imgrd b 1 6 ${uname} kmem ${permissions}
for n in 0 1 2 3 4 5
do
minor=`expr ${n} + 7`
makedev ram${n} b 1 ${minor} ${uname} kmem ${permissions}
done
;;
random|urandom)
# Random data generator.
makedev random c 16 0 ${uname} ${gname} 644
makedev urandom c 16 0 ${uname} ${gname} 644
;;
sht21b[1-3]s40)
# Weather Cape: relative humidity & temperature sensor
bus=`expr ${dev} : 'sht21b\\(.*\\)s40'`
major=`expr ${bus} + 49`
makedev sht21b${bus}s40 c ${major} 0 ${uname} ${gname} 444
;;
tsl2550b[1-3]s39)
# Weather Cape: ambient light sensor
bus=`expr ${dev} : 'tsl2550b\\(.*\\)s39'`
major=`expr ${bus} + 46`
makedev tsl2550b${bus}s39 c ${major} 0 ${uname} ${gname} 444
;;
tty0[0-3])
# Serial lines.
line=`expr ${dev} : '.*\\(.\\)'`
minor=`expr ${line} + 16`
makedev ${dev} c 4 ${minor} ${uname} tty 666
;;
tty[p-s][0-9a-f]|pty[p-s][0-9a-f])
# Pseudo ttys.
dev=`expr ${dev} : '...\\(..\\)'`
group=`expr ${dev} : '\\(.\\)'`
group=`echo ${group} | tr 'pqrs' '0123'`
pty=`expr ${dev} : '.\\(.\\)'`
case ${pty} in
[a-f]) pty=1`/bin/echo ${pty} | tr 'abcdef' '012345'`
esac
minor_tty=`expr ${group} '*' 16 + ${pty} + 128`
minor_pty=`expr ${group} '*' 16 + ${pty} + 192`
makedev tty${dev} c 9 ${minor_tty} ${uname} tty 666
makedev pty${dev} c 9 ${minor_pty} ${uname} tty 666
;;
ttyc[1-7])
# Virtual consoles.
minor=`expr ${dev} : '....\\(.*\\)'`
makedev ${dev} c 4 ${minor} ${uname} tty ${permissions}
;;
uds)
# Unix domain sockets device
makedev ${dev} c 18 0 ${uname} ${gname} 666
;;
vnd[0-7])
# Whole vnode disk devices.
makedev ${dev} b ${major} 0 ${uname} ${gname} ${permissions}
;;
vnd[0-7]p[0-3])
# Vnode disk primary partitions.
prefix=`expr ${dev} : '\\(.*\\).'`
disk=`expr ${dev} : '...\\(.\\)'`
for p in 0 1 2 3
do
minor=`expr 1 + ${p}`
makedev ${prefix}${p} b ${major} ${minor} \
${uname} ${gname} ${permissions}
done
;;
vnd[0-7]p[0-3]s[0-3])
# Vnode disk subpartition.
prefix=`expr ${dev} : '\\(.*\\)...'`
disk=`expr ${dev} : '...\\(.\\)'`
for p in 0 1 2 3
do
for s in 0 1 2 3
do
minor=`expr 128 + ${p} '*' 4 + ${s}`
makedev ${prefix}${p}s${s} b ${major} ${minor} \
${uname} ${gname} ${permissions}
done
done
;;
*)
echo "$0: don't know about ${dev}" >&2
EXIT=1
esac
done
exit $EXIT