name : parse-ip-opts.sh #!/bin/sh # # Format: # ip=[dhcp|on|any] # # ip=<interface>:[dhcp|on|any][:[<mtu>][:<macaddr>]] # # ip=<client-IP-number>:<server-IP-number>:<gateway-IP-number>:<netmask>:<client-hostname>:<interface>:{dhcp|on|any|none|off}[:[<mtu>][:<macaddr>]] # # When supplying more than only ip= line, <interface> is mandatory and # bootdev= must contain the name of the primary interface to use for # routing,dns,dhcp-options,etc. # command -v getarg >/dev/null || . /lib/dracut-lib.sh if [ -n "$netroot" ] && [ -z "$(getarg ip=)" ] && [ -z "$(getarg BOOTIF=)" ]; then # No ip= argument(s) for netroot provided, defaulting to DHCP return; fi # Count ip= lines to decide whether we need bootdev= or not if [ -z "$NEEDBOOTDEV" ] ; then count=0 for p in $(getargs ip=); do case "$p" in ibft) continue;; esac count=$(( $count + 1 )) done [ $count -gt 1 ] && NEEDBOOTDEV=1 fi unset count # If needed, check if bootdev= contains anything usable BOOTDEV=$(getarg bootdev=) if [ -n "$NEEDBOOTDEV" ] && getargbool 1 rd.neednet; then #[ -z "$BOOTDEV" ] && warn "Please supply bootdev argument for multiple ip= lines" echo "rd.neednet=1" > /etc/cmdline.d/dracut-neednet.conf info "Multiple ip= arguments: assuming rd.neednet=1" else unset NEEDBOOTDEV fi # Check ip= lines # XXX Would be nice if we could errorcheck ip addresses here as well for p in $(getargs ip=); do ip_to_var $p # make first device specified the BOOTDEV if [ -n "$NEEDBOOTDEV" ] && [ -z "$BOOTDEV" ] && [ -n "$dev" ]; then BOOTDEV="$dev" info "Setting bootdev to '$BOOTDEV'" fi # skip ibft since we did it above [ "$autoconf" = "ibft" ] && continue # Empty autoconf defaults to 'dhcp' if [ -z "$autoconf" ] ; then warn "Empty autoconf values default to dhcp" autoconf="dhcp" fi # Error checking for autoconf in combination with other values for autoopt in $(str_replace "$autoconf" "," " "); do case $autoopt in error) die "Error parsing option 'ip=$p'";; bootp|rarp|both) die "Sorry, ip=$autoopt is currenty unsupported";; none|off) [ -z "$ip" ] && \ die "For argument 'ip=$p'\nValue '$autoopt' without static configuration does not make sense" [ -z "$mask" ] && \ die "Sorry, automatic calculation of netmask is not yet supported" ;; auto6);; either6);; dhcp|dhcp6|on|any) \ [ -n "$NEEDBOOTDEV" ] && [ -z "$dev" ] && \ die "Sorry, 'ip=$p' does not make sense for multiple interface configurations" [ -n "$ip" ] && \ die "For argument 'ip=$p'\nSorry, setting client-ip does not make sense for '$autoopt'" ;; *) die "For argument 'ip=$p'\nSorry, unknown value '$autoopt'";; esac done if [ -n "$dev" ] ; then # We don't like duplicate device configs if [ -n "$IFACES" ] ; then for i in $IFACES ; do [ "$dev" = "$i" ] && die "For argument 'ip=$p'\nDuplication configurations for '$dev'" done fi # IFACES list for later use IFACES="$IFACES $dev" # Interface should exist if [ ! -e "/sys/class/net/$dev" ]; then warn "Network interface '$dev' does not exist" fi fi # Do we need to check for specific options? if [ -n "$NEEDDHCP" ] || [ -n "$DHCPORSERVER" ] ; then # Correct device? (Empty is ok as well) [ "$dev" = "$BOOTDEV" ] || continue # Server-ip is there? [ -n "$DHCPORSERVER" ] && [ -n "$srv" ] && continue # dhcp? (It's simpler to check for a set ip. Checks above ensure that if # ip is there, we're static [ -z "$ip" ] && continue # Not good! die "Server-ip or dhcp for netboot needed, but current arguments say otherwise" fi if str_starts "$dev" "enx" && [ ${#dev} -eq 15 ]; then printf -- "ifname=%s:%s:%s:%s:%s:%s:%s\n" \ "$dev" \ "${dev:3:2}" \ "${dev:5:2}" \ "${dev:7:2}" \ "${dev:9:2}" \ "${dev:11:2}" \ "${dev:13:2}" >> /etc/cmdline.d/80-enx.conf fi done # put BOOTIF in IFACES to make sure it comes up if getargbool 1 "rd.bootif" && BOOTIF="$(getarg BOOTIF=)"; then BOOTDEV=$(fix_bootif $BOOTIF) IFACES="$BOOTDEV $IFACES" fi # This ensures that BOOTDEV is always first in IFACES if [ -n "$BOOTDEV" ] && [ -n "$IFACES" ] ; then IFACES="${IFACES%$BOOTDEV*} ${IFACES#*$BOOTDEV}" IFACES="$BOOTDEV $IFACES" fi # Store BOOTDEV and IFACES for later use [ -n "$BOOTDEV" ] && echo $BOOTDEV > /tmp/net.bootdev [ -n "$IFACES" ] && echo $IFACES > /tmp/net.ifaces