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|
#!/bin/rc
mntgen -s slash /mnt
bind /root /mnt/broot
unmount /root
bind -q '#d' /fd
bind -q '#p' /proc
for(i in S f k æ t b m)
bind -qa '#'^$i /dev
# bind in an ip interface
for(i in I l^(0 1 2 3))
bind -qa '#'$i /net
# usualy better than 1970
cat '#r/rtc' >/dev/time >[2]/dev/null
# reparse variables
for(i in `{ls -Qp /env}){
switch($i){
case '*'* 'fn#'* e820 apm0 apid ifs path pid prompt status ?
# ignore these
case *
$i=`{echo $$i}
}
}
fn sigint {
status=interrupted
}
fn fatal {
echo $*
exit $"*
}
fn must {
$* || fatal $"*^': '^$status
}
fn ask {
echo -n $1
echo -n $2
if(! ~ $#3 0){
echo -n '['
echo -n $3
echo -n '] '
}
$1=`{dd -bs 64 -count 1 >[2]/dev/null}
if(~ $#$1 0)
$1=$3
if(~ $"$1 '!rc'){
rc -i
$1=()
}
if(~ $#$1 0)
ask $*
}
mt=()
fn main{
mp=()
while(~ $#mp 0){
if(~ $#nobootprompt 0){
echo
showlocaldevs
ask bootargs ' is (tcp, il, local!device)' $"bootargs
}
if not bootargs=$nobootprompt
nobootprompt=()
mn=`{echo $bootargs | awk -F! '{print $1}'}
ma=`{echo $bootargs | sed 's/[^!]*!?//'}
switch(m$"mn){
case $mt
mp=m$mn
mp=$$mp
}
}
# authentication agent
if(! test -f /srv/factotum){
x=(/boot/factotum -n -sfactotum)
if(~ $service cpu){
x=($x -S)
if(~ -k $ff)
x=($x -k)
}
if not
x=($x -u)
if(! ~ $#debugfactotum 0)
x=($x -p)
must $x
}
# config method
$mp(1) $ma
# load keys from secstore if $auth or $secstore is not empty
x=secstore
if(~ $#$x 0) x=auth
if(! ~ $#$x 0 && test -x /bin/auth/secstore && test -f /mnt/factotum/ctl){
x=(auth/secstore -G factotum -s^$$x)
if(~ $service cpu)
$x -n >/mnt/factotum/ctl
if(~ $status *readnvram* || ! ~ $service cpu)
$x >/mnt/factotum/ctl
}
# connect method
$mp(2) $ma
# insert cfs in the pipeline
if(test -x /bin/cfs){
if(~ $#bootdisk 1 && ~ $#cfs 0)
cfs=$bootdisk/cache
if(~ $#cfs 1 && ! ~ $cfs off && test -f $cfs){
x=(/bin/cfs -s -f $cfs)
if(~ -f $ff)
x=($x -r)
{$x </srv/boot &} | echo 0 >/srv/cfs
rm /srv/boot
mv /srv/cfs /srv/boot
}
}
# mount and change root in new enviroment and namespace
rfork ne
# mount root filesystem
if(~ $#rootdir 0)
rootdir=/root
must mount -c /srv/boot $rootdir
# compile init command
if(~ $#init 0){
init=/$cputype/init
if(~ $service cpu)
init=($init -c)
if not
init=($init -t)
if(~ -m $ff)
init=($init -m)
}
# remove enviroment variables
rm -f /env/^$mt /env/? /env/?? '/env/fn#'*
# remove part of our temporary root
/mnt/broot/$cputype/bin/unmount /$cputype/bin /bin
/mnt/broot/$cputype/bin/unmount /rc/bin /bin
/mnt/broot/$cputype/bin/unmount /
# create the name space, mount the root fs
/mnt/broot/$cputype/bin/bind / /
/mnt/broot/$cputype/bin/mount -ac '#s/boot' /
# remove the remaining temporary root
/mnt/broot/$cputype/bin/unmount /mnt/broot
exec $init
}
# keyboard and serial console
if(test -x /bin/aux/kbdfs){
a=$console(1)
if(! ~ $#a 0)
a=/dev/eia^$a
aux/kbdfs -q -s cons $a
}
# usb devices
if(test -x /bin/nusbrc && ! test -e /env/nousbrc)
nusbrc
# wait for devices to settle down
if(~ $#usbwait 1)
sleep $usbwait
if(~ $#usbwait 0)
sleep 2
. /rc/lib/net.rc
. /rc/lib/local.rc
# add partitions and binds
configlocal
# boot(8) command line arguments
ff=()
aa=()
while(! ~ $#* 0){
if(~ $1 -*){
if(~ $1 -u*){
if(~ $1 -u){
user=$2
shift
}
if not {
user=`{echo $1 | sed 's,^-u,,g'}
}
}
if not {
if(~ $1 -*f*)
ff=($ff -f)
if(~ $1 -*k*)
ff=($ff -k)
if(~ $1 -*m*)
ff=($ff -m)
}
shift
}
if not {
while(! ~ $#* 0){
aa=($aa $1)
shift
}
}
}
if(! ~ $#aa 0 && ~ $#bootargs 0 && ~ $#nobootprompt 0){
bootargs=$aa
nobootprompt=$aa
}
while(){
@{main}
# subshell doesnt wait on interrupts
while(~ $status interrupted){wait}
# cleanup so it can be restarted
nobootprompt=()
rm -f /srv/^(cfs boot slashn cs dns)
} </dev/cons
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