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78 lines
2.0 KiB
78 lines
2.0 KiB
#!/bin/sh |
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. /lib/dracut-lib |
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if getarg rdnetdebug ; then |
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exec >/tmp/netroot.$1.$$.out |
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exec 2>>/tmp/netroot.$1.$$.out |
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set -x |
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fi |
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# Huh? Empty $1? |
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[ -z "$1" ] && exit 1 |
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# Huh? No interface config? |
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[ ! -e /tmp/net.$1.up ] && exit 1 |
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# Only try to configure from one network interface at a time |
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# |
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if [ -z "$NETROOT_LOCKED" ] ; then |
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NETROOT_LOCKED=true |
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export NETROOT_LOCKED |
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exec flock -xo /tmp/netroot.lock -c "$0 $*" |
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exit 1 |
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fi |
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# There's no sense in doing something if no (net)root info is available |
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# or root is already there |
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[ -e /tmp/root.info ] || exit 1 |
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. /tmp/root.info |
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[ -d $NEWROOT/proc ] && exit 0 |
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[ -z "$netroot" ] && exit 1 |
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netif=$1 |
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# Figure out the handler for root=dhcp by recalling all netroot cmdline |
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# handlers |
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if [ "$netroot" = "dhcp" ] ; then |
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# Unset root so we can check later |
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unset root |
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# Load dhcp options |
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[ -e /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts |
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# Set netroot to new_root_path, so cmdline parsers don't call |
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netroot=$new_root_path |
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for f in ./cmdline/90*.sh; do |
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[ -f "$f" ] && . "$f"; |
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done |
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else |
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rootok="1" |
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fi |
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# Check: do we really know how to handle (net)root? |
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[ -z "$root" ] && die "No or empty root= argument" |
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[ -z "$rootok" ] && die "Don't know how to handle 'root=$root'" |
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handler=${netroot%%:*} |
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handler=${handler%%4} |
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handler="/sbin/${handler}root" |
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if [ -z "$netroot" ] || [ ! -e "$handler" ] ; then |
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die "No handler for netroot type '$netroot'" |
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fi |
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# Source netroot hooks before we start the handler |
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source_all netroot |
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# Run the handler; don't store the root, it may change from device to device |
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# XXX other variables to export? |
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if $handler $netif $netroot $NEWROOT; then |
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# Network rootfs mount successful |
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[ -f /tmp/dhclient.$netif.lease ] && cp /tmp/dhclient.$netif.lease /tmp/net.$netif.lease |
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[ -f /tmp/dhclient.$netif.dhcpopts ] && cp /tmp/dhclient.$netif.dhcpopts /tmp/net.$netif.dhcpopts |
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# Save used netif for later use |
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echo $netif > /tmp/net.bootdev |
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fi |
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exit 0
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