mirror of
https://github.com/dracutdevs/dracut.git
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74 lines
2.4 KiB
Bash
Executable File
74 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# ex: ts=8 sw=4 sts=4 et filetype=sh
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PATH=/usr/sbin:/usr/bin:/sbin:/bin
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command -v getarg >/dev/null || . /lib/dracut-lib.sh
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command -v setup_net >/dev/null || . /lib/net-lib.sh
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# Huh? Empty $1?
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[ -z "$1" ] && exit 1
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# [ ! -z $2 ] means this is for manually bringing up network
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# instead of real netroot; If It's called without $2, then there's
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# 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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[ -d $NEWROOT/proc ] && exit 0
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[ -z "$netroot" ] && exit 1
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# Set or override primary interface
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netif=$1
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[ -e "/tmp/net.bootdev" ] && read netif < /tmp/net.bootdev
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# Figure out the handler for root=dhcp by recalling all netroot cmdline
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# handlers when this is not called from manually network bringing up.
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if [ -z "$2" ]; then
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if [ "$netroot" = "dhcp" ] || [ "$netroot" = "dhcp6" ] ; then
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# Unset root so we can check later
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unset root
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# Load dhcp options
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[ -e /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts
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# If we have a specific bootdev with no dhcpoptions or empty root-path,
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# we die. Otherwise we just warn
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if [ -z "$new_root_path" ] ; then
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[ -n "$BOOTDEV" ] && die "No dhcp root-path received for '$BOOTDEV'"
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warn "No dhcp root-path received for '$BOOTDEV' trying other interfaces if available"
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exit 1
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fi
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# Set netroot to new_root_path, so cmdline parsers don't call
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netroot=$new_root_path
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# FIXME!
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for f in $hookdir/cmdline/90*.sh; do
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[ -f "$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=$(command -v ${handler}root)
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if [ -z "$netroot" ] || [ ! -e "$handler" ] ; then
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die "No handler for netroot type '$netroot'"
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fi
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fi
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# Source netroot hooks before we start the handler
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source_hook netroot $netif
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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 - save interface info for ifcfg etc.
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save_netinfo $netif
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fi
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exit 0
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