140 lines
4.7 KiB
Bash
Executable File
140 lines
4.7 KiB
Bash
Executable File
#!/bin/sh
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#
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# Format:
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# ip=[dhcp|on|any]
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#
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# ip=<interface>:[dhcp|on|any][:[<mtu>][:<macaddr>]]
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#
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# ip=<client-IP-number>:<server-IP-number>:<gateway-IP-number>:<netmask>:<client-hostname>:<interface>:{dhcp|on|any|none|off}[:[<mtu>][:<macaddr>]]
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#
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# When supplying more than only ip= line, <interface> is mandatory and
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# bootdev= must contain the name of the primary interface to use for
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# routing,dns,dhcp-options,etc.
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#
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command -v getarg >/dev/null || . /lib/dracut-lib.sh
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if [ -n "$netroot" ] && [ -z "$(getarg ip=)" ] && [ -z "$(getarg BOOTIF=)" ]; then
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# No ip= argument(s) for netroot provided, defaulting to DHCP
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return;
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fi
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# Count ip= lines to decide whether we need bootdev= or not
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if [ -z "$NEEDBOOTDEV" ] ; then
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count=0
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for p in $(getargs ip=); do
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case "$p" in
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ibft)
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continue;;
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esac
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count=$(( $count + 1 ))
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done
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[ $count -gt 1 ] && NEEDBOOTDEV=1
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fi
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unset count
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# If needed, check if bootdev= contains anything usable
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BOOTDEV=$(getarg bootdev=)
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if [ -n "$NEEDBOOTDEV" ] && getargbool 1 rd.neednet; then
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#[ -z "$BOOTDEV" ] && warn "Please supply bootdev argument for multiple ip= lines"
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echo "rd.neednet=1" > /etc/cmdline.d/dracut-neednet.conf
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info "Multiple ip= arguments: assuming rd.neednet=1"
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else
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unset NEEDBOOTDEV
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fi
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# Check ip= lines
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# XXX Would be nice if we could errorcheck ip addresses here as well
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for p in $(getargs ip=); do
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ip_to_var $p
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# make first device specified the BOOTDEV
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if [ -n "$NEEDBOOTDEV" ] && [ -z "$BOOTDEV" ] && [ -n "$dev" ]; then
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BOOTDEV="$dev"
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info "Setting bootdev to '$BOOTDEV'"
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fi
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# skip ibft since we did it above
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[ "$autoconf" = "ibft" ] && continue
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# Empty autoconf defaults to 'dhcp'
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if [ -z "$autoconf" ] ; then
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warn "Empty autoconf values default to dhcp"
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autoconf="dhcp"
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fi
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# Error checking for autoconf in combination with other values
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for autoopt in $(str_replace "$autoconf" "," " "); do
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case $autoopt in
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error) die "Error parsing option 'ip=$p'";;
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bootp|rarp|both) die "Sorry, ip=$autoopt is currenty unsupported";;
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none|off)
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[ -z "$ip" ] && \
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die "For argument 'ip=$p'\nValue '$autoopt' without static configuration does not make sense"
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[ -z "$mask" ] && \
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die "Sorry, automatic calculation of netmask is not yet supported"
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;;
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auto6);;
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dhcp|dhcp6|on|any) \
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[ -n "$NEEDBOOTDEV" ] && [ -z "$dev" ] && \
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die "Sorry, 'ip=$p' does not make sense for multiple interface configurations"
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[ -n "$ip" ] && \
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die "For argument 'ip=$p'\nSorry, setting client-ip does not make sense for '$autoopt'"
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;;
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*) die "For argument 'ip=$p'\nSorry, unknown value '$autoopt'";;
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esac
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done
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if [ -n "$dev" ] ; then
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# We don't like duplicate device configs
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if [ -n "$IFACES" ] ; then
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for i in $IFACES ; do
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[ "$dev" = "$i" ] && die "For argument 'ip=$p'\nDuplication configurations for '$dev'"
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done
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fi
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# IFACES list for later use
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IFACES="$IFACES $dev"
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fi
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# Do we need to check for specific options?
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if [ -n "$NEEDDHCP" ] || [ -n "$DHCPORSERVER" ] ; then
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# Correct device? (Empty is ok as well)
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[ "$dev" = "$BOOTDEV" ] || continue
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# Server-ip is there?
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[ -n "$DHCPORSERVER" ] && [ -n "$srv" ] && continue
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# dhcp? (It's simpler to check for a set ip. Checks above ensure that if
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# ip is there, we're static
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[ -z "$ip" ] && continue
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# Not good!
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die "Server-ip or dhcp for netboot needed, but current arguments say otherwise"
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fi
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if str_starts "$dev" "enx" && [ ${#dev} -eq 15 ]; then
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printf -- "ifname=%s:%s:%s:%s:%s:%s:%s\n" \
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"$dev" \
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"${dev:3:2}" \
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"${dev:5:2}" \
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"${dev:7:2}" \
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"${dev:9:2}" \
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"${dev:11:2}" \
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"${dev:13:2}" >> /etc/cmdline.d/80-enx.conf
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fi
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done
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# put BOOTIF in IFACES to make sure it comes up
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if getargbool 1 "rd.bootif" && BOOTIF="$(getarg BOOTIF=)"; then
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BOOTDEV=$(fix_bootif $BOOTIF)
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IFACES="$BOOTDEV $IFACES"
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fi
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# This ensures that BOOTDEV is always first in IFACES
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if [ -n "$BOOTDEV" ] && [ -n "$IFACES" ] ; then
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IFACES="${IFACES%$BOOTDEV*} ${IFACES#*$BOOTDEV}"
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IFACES="$BOOTDEV $IFACES"
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fi
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# Store BOOTDEV and IFACES for later use
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[ -n "$BOOTDEV" ] && echo $BOOTDEV > /tmp/net.bootdev
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[ -n "$IFACES" ] && echo $IFACES > /tmp/net.ifaces
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