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https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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Remove all vestiges of /usr programs (awk, sed, grep...) from MAKEDEV.
MAKEDEV can now run (with /sbin/chown and /bin/chgrp, still) without any /usr. The default PATH for MAKEDEV is now "/sbin:/bin" to prevent against further spammage of /usr programs in MAKEDEV. In the event of an emergency, the variable "MAKEDEVPATH" can be used to replace PATH, but I don't know what that emergency could be. Let me know if you have any problems. I've tested it as well as I could, which basically means everything except for RocketPorts. Reviewed in principle by: peter
This commit is contained in:
Brian Feldman
parent
68567ff127
commit
1d1811b172
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=54814
213
etc/MAKEDEV
213
etc/MAKEDEV
@ -134,7 +134,11 @@
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# $FreeBSD$
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#
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PATH=/sbin:/bin/:/usr/bin:/usr/sbin:$PATH
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if [ -n "$MAKEDEVPATH" ]; then
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PATH="$MAKEDEVPATH"
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else
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PATH=/sbin:/bin
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fi
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umask 77
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# Usage: die exitcode msg
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@ -297,9 +301,12 @@ std)
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mknod stderr c 22 2; chmod 666 stderr
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mknod pci c 78 0; chmod 644 pci
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mkdir -p fd
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(cd fd && eval `echo "" | awk ' BEGIN { \
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for (i = 0; i < 64; i++) \
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printf("mknod %d c 22 %d;", i, i)}'`)
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(cd fd && i=0 &&
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while [ $i -lt 64 ]; do
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mknod $i c 22 $i
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i=$(($i + 1))
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done
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)
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chown -R root:wheel fd
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chmod 555 fd
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chmod 666 fd/*
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@ -607,13 +614,14 @@ xpt*)
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if [ -z "${units}" ]; then
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units=1
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fi
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eval `echo ${chr} ${units} ${name} |awk \
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'{ c=$1; n=$2; name=$3;} END {
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for (i = 0; i < n; i++)
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printf("rm -f %s%d r%s%d; mknod %s%d c %d %d; \
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chgrp operator %s%d;", \
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name, i, name, i, name, i, c, i, \
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name, i); }'`
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i=0
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while [ $i -lt $units ]; do
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dname=$name$i
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rm -rf $dname r$dname
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mknod $dname c $chr $i
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chown root:operator $dname
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i=$(($i + 1))
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done
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;;
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# CAM passthrough device
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pass*|uk*)
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@ -625,13 +633,14 @@ pass*|uk*)
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if [ -z "${units}" ]; then
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units=1
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fi
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eval `echo ${chr} ${units} ${name} |awk \
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'{ c=$1; n=$2; name=$3;} END {
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for (i = 0; i < n; i++)
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printf("rm -f %s%d r%s%d; mknod %s%d c %d %d; \
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chgrp operator %s%d;", \
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name, i, name, i, name, i, c, i, \
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name, i); }'`
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i=0
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while [ $i -lt $units ]; do
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dname=$name$i
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rm -rf $dname r$dname
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mknod $dname c $chr $i
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chown root:operator $dname
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i=$(($i + 1))
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done
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;;
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pty*)
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class=`expr $i : 'pty\(.*\)'`
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@ -648,21 +657,21 @@ pty*)
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# This still leaves [tuTU].
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*) echo bad unit for pty in: $i;;
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esac
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umask 0
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case $class in
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0|1|2|3|4|5|6|7)
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umask 0
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eval `echo $offset $name | awk ' { b=0+$1; n=$2 } END { \
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for (i = 0; i < 32; i++) {
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c = substr("0123456789abcdefghijklmnopqrstuv", i + 1, 1); \
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printf("mknod tty%s%s c 5 %d; \
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mknod pty%s%s c 6 %d;", \
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n, c, b+i, \
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n, c, b+i); \
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} \
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}'`
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umask 77
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i=0
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while [ $i -lt 32 ]; do
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# This was an awk substr() before.
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c=$(echo 0123456789abcdefghijklmnopqrstuv |
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dd bs=1 skip=$i count=1 2>/dev/null)
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mknod tty$name$c c 5 $(($offset + $i))
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mknod pty$name$c c 6 $(($offset + $i))
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i=$(($i + 1))
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done
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;;
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esac
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umask 77
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;;
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sa*)
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@ -742,21 +751,17 @@ acd*|cd*|mcd*|scd*)
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units=1
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fi
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if [ "${units}" -le 31 ]; then
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eval `echo ${chr} ${units} ${name} |awk \
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'{ c=$1; n=$2; name=$3;} END{
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for (i = 0; i < n; i++){
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printf("rm -f %s%d* r%s%d*; \
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mknod %s%da c %d %d; \
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mknod %s%dc c %d %d; \
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mknod r%s%da c %d %d; \
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mknod r%s%dc c %d %d; \
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chgrp operator %s%d* r%s%d*;",
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name, i, name, i,
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name, i, c, (i * 8),
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name, i, c, (i * 8) + 2,
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name, i, c, (i * 8),
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name, i, c, (i * 8) + 2,
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name, i, name, i); }}'`
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i=0
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while [ $i -lt $units ]; do
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dname=$name$i
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rm -rf ${dname}* r${dname}*
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mknod ${dname}a c $chr $(($i * 8))
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mknod ${dname}c c $chr $(($i * 8 + 2))
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mknod r${dname}a c $chr $(($i * 8))
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mknod r${dname}c c $chr $(($i * 8 + 2))
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chown root:operator ${dname}* r${dname}*
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i=$(($i + 1))
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done
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else
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echo "$i is invalid -- can't have more than 32 cd devices"
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fi
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@ -871,12 +876,14 @@ ugen*)
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echo $i - Invalid unit number
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fi
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if [ -z "${endpoint}" ]; then # ugen0 & ugen0.1 - ugen0.15
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eval `echo ${unit} | awk ' { u=0+$1 } END {
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printf("mknod ugen%d c 114 %d;", u, u*16+0);
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for (i = 1; i < 16; i++)
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printf("mknod ugen%d.%d c 114 %d;", u, i, u*16+i); }'`
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mknod ugen$unit c 114 $(($unit * 16))
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i=1
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while [ $i -lt 16 ]; do
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mknod ugen$unit.$i c 114 $(($unit * 16 + $i))
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i=$(($i + 1))
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done
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else
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minor=`expr $unit \* 16 + $endpoint`
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minor=$(($unit * 16 + $endpoint))
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mknod ugen$unit.$endpoint c 114 $minor
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fi
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;;
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@ -899,9 +906,11 @@ tw*)
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vty*)
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chr=12
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units=`expr $i : 'vty\(.*\)'`
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eval `echo ${chr} ${units} | awk ' { c=0+$1; n=0+$2 } END {
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for (i = 0; i < n; i++)
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printf("mknod ttyv%01x c %d %d;", i, c, i); }'`
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i=0
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while [ $i -lt $units ]; do
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mknod ttyv$(printf %01x $i) c $chr $i
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i=$(($i + 1))
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done
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ln -fs ttyv0 vga # XXX X still needs this pccons relic
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;;
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@ -910,7 +919,7 @@ bpf*)
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unit=0
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while [ $unit -le $nbpf ]; do
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mknod bpf$unit c 23 $unit
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unit=`expr $unit + 1`
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unit=$(($unit + 1))
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done
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;;
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@ -1002,7 +1011,7 @@ ttyA*)
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mknod ttyA$name c $major $minor
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mknod ttyiA$name c $major `expr $minor + 65536`
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mknod ttylA$name c $major `expr $minor + 131072`
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port=`expr $port + 1`
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port=$(($port + 1))
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done
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# For the user-mode control program, 'sicontrol'
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mknod si_control c 68 262144
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@ -1020,7 +1029,7 @@ cuaA*)
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mknod cuaiA$name c $major `expr $minor + 128 + 65536`
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mknod cualA$name c $major `expr $minor + 128 + 131072`
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chown uucp:dialer cuaA$name cuaiA$name cualA$name
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port=`expr $port + 1`
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port=$(($port + 1))
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done
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umask 77
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;;
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@ -1121,46 +1130,80 @@ cuaM?)
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ttyR?)
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major=81
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BOARD=1; MINOR=65536; Rnum=0
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MINOR=`expr $BOARD \* 65536`
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dmesg | grep ^RocketPort[0-4] > /tmp/rp_list
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controllers=`awk '{print $1}' < /tmp/rp_list`
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rm -f /dev/ttyR*; rm -f /dev/ttyiR*; rm -f /dev/ttylR*
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for i in $controllers;do
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ndevices=`grep ^$i /tmp/rp_list | sed -e 's/.* \([0-9]*\) ports/\1/'`
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BOARD=1; Rnum=0
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MINOR=$(($BOARD * 65536))
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controllers=$(
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dmesg | while read first rest; do
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case "\$first" in
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RocketPort[0-4])
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echo "\$first"
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;;
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esac
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done
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)
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rm -f /dev/ttyR* /dev/ttyiR* /dev/ttylR*
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for i in $controllers; do
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ndevices=$(
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dmesg | while read first bar ports rest; do
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case "\$first" in
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$i*)
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echo "\$ports"
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;;
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esac
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done
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)
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echo -n "Creating $ndevices devices for $i: "
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for dev in `jot $ndevices 0`;do
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dev=0
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while [ $dev -lt $ndevices ]; do
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mknod /dev/ttyR$Rnum c $major $MINOR
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mknod /dev/ttylR$Rnum c $major `expr $MINOR + 32`
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mknod /dev/ttyiR$Rnum c $major `expr $MINOR + 64`
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Rnum=`expr $Rnum + 1`
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MINOR=`expr $MINOR + 1`
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mknod /dev/ttylR$Rnum c $major $(($MINOR + 32))
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mknod /dev/ttyiR$Rnum c $major $(($MINOR + 64))
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Rnum=$(($Rnum + 1))
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MINOR=$(($MINOR + 1))
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dev=$(($dev + 1))
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done
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BOARD=`expr $BOARD + 1`
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MINOR=`expr $BOARD \* 65536`
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BOARD=$(($BOARD + 1))
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MINOR=$(($BOARD * 65536))
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echo " "
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done
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;;
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cuaR?)
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major=81
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BOARD=1; MINOR=65536; Rnum=0
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MINOR=`expr $BOARD \* 65536`
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dmesg | grep ^RocketPort[0-4] > /tmp/rp_list
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controllers=`awk '{print $1}' < /tmp/rp_list`
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rm -f /dev/cuaR*; rm -f /dev/cuaiR*; rm -f /dev/cualR*
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for i in $controllers;do
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ndevices=`grep ^$i /tmp/rp_list | sed -e 's/.* \([0-9]*\) ports/\1/'`
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BOARD=1; Rnum=0
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MINOR=$(($BOARD * 65536))
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controllers=$(
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dmesg | while read first rest; do
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case "\$first" in
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RocketPort[0-4])
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echo "\$first"
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;;
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esac
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done
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)
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rm -f /dev/cuaR* /dev/cuaiR* /dev/cualR*
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for i in $controllers; do
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ndevices=$(
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dmesg | while read first bar ports rest; do
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case "\$first" in
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$i*)
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echo "\$ports"
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;;
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esac
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done
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)
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echo -n "Creating $ndevices devices for $i: "
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for dev in `jot $ndevices 0`;do
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mknod /dev/cuaR$Rnum c $major `expr $MINOR + 128`
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mknod /dev/cualR$Rnum c $major `expr $MINOR + 128 + 32`
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mknod /dev/cuaiR$Rnum c $major `expr $MINOR + 128 + 64`
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Rnum=`expr $Rnum + 1`
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MINOR=`expr $MINOR + 1`
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dev=0
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while [ $dev -lt $ndevices ]; do
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mknod /dev/cuaR$Rnum c $major $(($MINOR + 128))
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mknod /dev/cualR$Rnum c $major $(($MINOR + 128 + 32))
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mknod /dev/cuaiR$Rnum c $major $(($MINOR + 128 + 64))
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Rnum=$(($Rnum + 1))
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MINOR=$(($MINOR + 1))
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dev=$(($dev + 1))
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done
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BOARD=`expr $BOARD + 1`
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MINOR=`expr $BOARD \* 65536`
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BOARD=$(($BOARD + 1))
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MINOR=$(($BOARD * 65536))
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echo " "
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done
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chown uucp:dialer /dev/cuaR*
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@ -1324,7 +1367,7 @@ tun*)
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while [ $unit -le $ntun ]; do
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mknod tun$unit c 52 $unit
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chown uucp:dialer tun$unit
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unit=`expr $unit + 1`
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unit=$(($unit + 1))
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done
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;;
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