101 lines
3.2 KiB
Bash
Executable File
101 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
|
|
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
|
|
# ex: ts=8 sw=4 sts=4 et filetype=sh
|
|
|
|
PATH=/usr/sbin:/usr/bin:/sbin:/bin
|
|
command -v getarg >/dev/null || . /lib/dracut-lib.sh
|
|
command -v setup_net >/dev/null || . /lib/net-lib.sh
|
|
|
|
# Huh? Empty $1?
|
|
[ -z "$1" ] && exit 1
|
|
|
|
# [ ! -z $2 ] means this is for manually bringing up network
|
|
# instead of real netroot; If It's called without $2, then there's
|
|
# no sense in doing something if no (net)root info is available
|
|
# or root is already there
|
|
if [ -z "$2" ]; then
|
|
[ -d $NEWROOT/proc ] && exit 0
|
|
[ -z "$netroot" ] && exit 1
|
|
fi
|
|
|
|
# Let's see if we have to wait for other interfaces
|
|
# Note: exit works just fine, since the last interface to be
|
|
# online'd should see all files
|
|
all_ifaces_up || exit 1
|
|
|
|
# Set or override primary interface
|
|
netif=$1
|
|
[ -e "/tmp/net.bootdev" ] && read netif < /tmp/net.bootdev
|
|
|
|
if [ -e /tmp/net.$netif.manualup ]; then
|
|
rm -f /tmp/net.$netif.manualup
|
|
fi
|
|
|
|
# Figure out the handler for root=dhcp by recalling all netroot cmdline
|
|
# handlers when this is not called from manually network bringing up.
|
|
if [ -z "$2" ]; then
|
|
if [ "$netroot" = "dhcp" ] || [ "$netroot" = "dhcp6" ] ; then
|
|
# Unset root so we can check later
|
|
unset root
|
|
|
|
# Load dhcp options
|
|
[ -e /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts
|
|
|
|
# If we have a specific bootdev with no dhcpoptions or empty root-path,
|
|
# we die. Otherwise we just warn
|
|
if [ -z "$new_root_path" ] ; then
|
|
[ -n "$BOOTDEV" ] && die "No dhcp root-path received for '$BOOTDEV'"
|
|
warn "No dhcp root-path received for '$BOOTDEV' trying other interfaces if available"
|
|
exit 1
|
|
fi
|
|
|
|
# Set netroot to new_root_path, so cmdline parsers don't call
|
|
netroot=$new_root_path
|
|
|
|
# FIXME!
|
|
for f in $hookdir/cmdline/90*.sh; do
|
|
[ -f "$f" ] && . "$f";
|
|
done
|
|
else
|
|
rootok="1"
|
|
fi
|
|
|
|
# Check: do we really know how to handle (net)root?
|
|
[ -z "$root" ] && die "No or empty root= argument"
|
|
[ -z "$rootok" ] && die "Don't know how to handle 'root=$root'"
|
|
|
|
handler=${netroot%%:*}
|
|
handler=${handler%%4}
|
|
handler=$(command -v ${handler}root)
|
|
if [ -z "$netroot" ] || [ ! -e "$handler" ] ; then
|
|
die "No handler for netroot type '$netroot'"
|
|
fi
|
|
fi
|
|
|
|
# We're here, so we can assume that upping interfaces is now ok
|
|
setup_net $netif
|
|
|
|
# exit in case manually bring up network
|
|
[ -n "$2" ] && exit 0
|
|
|
|
# Source netroot hooks before we start the handler
|
|
source_hook netroot
|
|
|
|
# Run the handler; don't store the root, it may change from device to device
|
|
# XXX other variables to export?
|
|
if $handler $netif $netroot $NEWROOT; then
|
|
# Network rootfs mount successful
|
|
for iface in $IFACES ; do
|
|
[ -f /tmp/dhclient.$iface.lease ] && cp /tmp/dhclient.$iface.lease /tmp/net.$iface.lease
|
|
[ -f /tmp/dhclient.$iface.dhcpopts ] && cp /tmp/dhclient.$iface.dhcpopts /tmp/net.$iface.dhcpopts
|
|
done
|
|
|
|
# Save used netif for later use
|
|
[ ! -f /tmp/net.ifaces ] && echo $netif > /tmp/net.ifaces
|
|
else
|
|
warn "Mounting root via '$netif' failed"
|
|
# If we're trying with multiple interfaces, put that one down.
|
|
[ -z "$BOOTDEV" ] && ifdown $netif
|
|
fi
|
|
exit 0
|