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484 lines
13 KiB
484 lines
13 KiB
#!/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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get_ip() { |
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local iface="$1" ip="" |
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ip=$(ip -o -f inet addr show $iface) |
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ip=${ip%%/*} |
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ip=${ip##* } |
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} |
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iface_for_remote_addr() { |
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set -- $(ip -o route get to $1) |
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echo $5 |
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} |
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iface_for_ip() { |
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set -- $(ip -o addr show to $1) |
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echo $2 |
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} |
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iface_for_mac() { |
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local interface="" mac="$(echo $1 | sed 'y/ABCDEF/abcdef/')" |
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for interface in /sys/class/net/*; do |
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if [ $(cat $interface/address) = "$mac" ]; then |
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echo ${interface##*/} |
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fi |
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done |
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} |
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# get the iface name for the given identifier - either a MAC, IP, or iface name |
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iface_name() { |
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case $1 in |
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??:??:??:??:??:??|??-??-??-??-??-??) iface_for_mac $1 ;; |
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*:*:*|*.*.*.*) iface_for_ip $1 ;; |
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*) echo $1 ;; |
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esac |
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} |
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# list the configured interfaces |
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configured_ifaces() { |
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local IFACES="" iface_id="" rv=1 |
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[ -e "/tmp/net.ifaces" ] && read IFACES < /tmp/net.ifaces |
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if { pidof udevd || pidof systemd-udevd; } > /dev/null; then |
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for iface_id in $IFACES; do |
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echo $(iface_name $iface_id) |
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rv=0 |
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done |
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else |
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warn "configured_ifaces called before udev is running" |
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echo $IFACES |
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[ -n "$IFACES" ] && rv=0 |
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fi |
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return $rv |
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} |
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all_ifaces_up() { |
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local iface="" IFACES="" |
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[ -e "/tmp/net.ifaces" ] && read IFACES < /tmp/net.ifaces |
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for iface in $IFACES; do |
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[ -e /tmp/net.$iface.up ] || return 1 |
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done |
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} |
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get_netroot_ip() { |
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local prefix="" server="" rest="" |
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splitsep "$1" ":" prefix server rest |
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case $server in |
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[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*) echo "$server"; return 0 ;; |
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esac |
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return 1 |
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} |
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ip_is_local() { |
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strstr "$(ip route get $1 2>/dev/null)" " via " |
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} |
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ifdown() { |
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local netif="$1" |
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# ip down/flush ensures that routing info goes away as well |
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ip link set $netif down |
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ip addr flush dev $netif |
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echo "#empty" > /etc/resolv.conf |
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rm -f -- /tmp/net.$netif.did-setup |
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# TODO: send "offline" uevent? |
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} |
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setup_net() { |
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local netif="$1" f="" gw_ip="" netroot_ip="" iface="" IFACES="" |
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[ -e /tmp/net.$netif.did-setup ] && return |
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[ -e "/tmp/net.ifaces" ] && read IFACES < /tmp/net.ifaces |
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[ -z "$IFACES" ] && IFACES="$netif" |
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# run the scripts written by ifup |
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[ -e /tmp/net.$netif.gw ] && . /tmp/net.$netif.gw |
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[ -e /tmp/net.$netif.hostname ] && . /tmp/net.$netif.hostname |
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[ -e /tmp/net.$netif.override ] && . /tmp/net.$netif.override |
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[ -e /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts |
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# set up resolv.conf |
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[ -e /tmp/net.$netif.resolv.conf ] && \ |
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cp -f /tmp/net.$netif.resolv.conf /etc/resolv.conf |
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# Handle STP Timeout: arping the default gateway. |
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# (or the root server, if a) it's local or b) there's no gateway.) |
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# Note: This assumes that if no router is present the |
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# root server is on the same subnet. |
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# Get DHCP-provided router IP, or the cmdline-provided "gw=" argument |
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[ -n "$new_routers" ] && gw_ip=${new_routers%%,*} |
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[ -n "$gw" ] && gw_ip=$gw |
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# Get the "netroot" IP (if there's an IP address in there) |
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netroot_ip=$(get_netroot_ip $netroot) |
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# try netroot if it's local (or there's no gateway) |
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if ip_is_local $netroot_ip || [ -z "$gw_ip" ]; then |
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dest="$netroot_ip" |
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else |
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dest="$gw_ip" |
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fi |
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unset layer2 |
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if [ -f /sys/class/net/$netif/device/layer2 ]; then |
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read layer2 < /sys/class/net/$netif/device/layer2 |
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fi |
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if [ "$layer2" != "0" ] && [ -n "$dest" ] && ! arping -q -f -w 60 -I $netif $dest ; then |
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info "Resolving $dest via ARP on $netif failed" |
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fi |
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unset layer2 |
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> /tmp/net.$netif.did-setup |
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} |
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save_netinfo() { |
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local netif="$1" IFACES="" f="" i="" |
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[ -e /tmp/net.ifaces ] && read IFACES < /tmp/net.ifaces |
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# Add $netif to the front of IFACES (if it's not there already). |
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set -- "$netif" |
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for i in $IFACES; do [ "$i" != "$netif" ] && set -- "$@" "$i"; done |
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IFACES="$*" |
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for i in $IFACES; do |
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for f in /tmp/dhclient.$i.*; do |
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[ -f $f ] && cp -f $f /tmp/net.${f#/tmp/dhclient.} |
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done |
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done |
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echo $IFACES > /tmp/.net.ifaces.new |
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mv /tmp/.net.ifaces.new /tmp/net.ifaces |
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} |
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set_ifname() { |
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local name="$1" mac="$2" num=-1 n="" |
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# if it's already set, return the existing name |
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for n in $(getargs ifname=); do |
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strstr "$n" "$mac" && echo ${n%%:*} && return |
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done |
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# otherwise, pick a new name and use that |
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while :; do |
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num=$(($num+1)); |
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[ -e /sys/class/net/$name$num ] && continue |
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for n in $(getargs ifname=); do |
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[ "$name$num" = "${n%%:*}" ] && continue 2 |
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done |
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break |
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done |
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echo "ifname=$name$num:$mac" >> /etc/cmdline.d/45-ifname.conf |
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echo "$name$num" |
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} |
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# pxelinux provides macaddr '-' separated, but we need ':' |
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fix_bootif() { |
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local macaddr=${1} |
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local IFS='-' |
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macaddr=$(for i in ${macaddr} ; do echo -n $i:; done) |
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macaddr=${macaddr%:} |
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# strip hardware type field from pxelinux |
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[ -n "${macaddr%??:??:??:??:??:??}" ] && macaddr=${macaddr#??:} |
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# return macaddr with lowercase alpha characters expected by udev |
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echo $macaddr | sed 'y/ABCDEF/abcdef/' |
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} |
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ibft_to_cmdline() { |
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local iface="" |
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modprobe -q iscsi_ibft |
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( |
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for iface in /sys/firmware/ibft/ethernet*; do |
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local mac="" dev="" |
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local dhcp="" ip="" gw="" mask="" hostname="" |
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[ -e ${iface}/mac ] || continue |
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mac=$(read a < ${iface}/mac; echo $a) |
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[ -z "$mac" ] && continue |
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dev=$(set_ifname ibft $mac) |
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[ -e /tmp/net.${dev}.has_ibft_config ] && continue |
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[ -e ${iface}/dhcp ] && dhcp=$(read a < ${iface}/dhcp; echo $a) |
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if [ -n "$dhcp" ]; then |
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echo "ip=$dev:dhcp" |
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elif [ -e ${iface}/ip-addr ]; then |
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[ -e ${iface}/ip-addr ] && ip=$(read a < ${iface}/ip-addr; echo $a) |
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# skip not assigned ip adresses |
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[ "$ip" = "0.0.0.0" ] && continue |
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[ -e ${iface}/gateway ] && gw=$(read a < ${iface}/gateway; echo $a) |
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[ -e ${iface}/subnet-mask ] && mask=$(read a < ${iface}/subnet-mask; echo $a) |
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[ -e ${iface}/hostname ] && hostname=$(read a < ${iface}/hostname; echo $a) |
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if [ -n "$ip" ] && [ -n "$mask" ]; then |
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echo "ip=$ip::$gw:$mask:$hostname:$dev:none" |
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else |
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warn "${iface} does not contain a valid iBFT configuration" |
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warn "ip-addr=$ip" |
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warn "gateway=$gw" |
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warn "subnet-mask=$mask" |
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warn "hostname=$hostname" |
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fi |
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else |
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info "${iface} does not contain a valid iBFT configuration" |
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ls -l ${iface} | vinfo |
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fi |
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if [ -e ${iface}/vlan ]; then |
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vlan=$(read a < ${iface}/vlan; echo $a) |
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if [ "$vlan" -ne "0" ]; then |
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case "$vlan" in |
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[0-9]*) |
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echo "vlan=$dev.$vlan:$dev" |
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;; |
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*) |
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echo "vlan=$vlan:$dev" |
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;; |
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esac |
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fi |
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fi |
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echo $mac > /tmp/net.${dev}.has_ibft_config |
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done |
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) >> /etc/cmdline.d/40-ibft.conf |
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} |
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parse_iscsi_root() |
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{ |
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local v |
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v=${1#iscsi:} |
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# extract authentication info |
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case "$v" in |
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*@*:*:*:*:*) |
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authinfo=${v%%@*} |
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v=${v#*@} |
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# allow empty authinfo to allow having an @ in iscsi_target_name like this: |
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# netroot=iscsi:@192.168.1.100::3260::iqn.2009-01.com.example:testdi@sk |
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if [ -n "$authinfo" ]; then |
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OLDIFS="$IFS" |
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IFS=: |
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set $authinfo |
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IFS="$OLDIFS" |
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if [ $# -gt 4 ]; then |
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warn "Wrong authentication info in iscsi: parameter!" |
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return 1 |
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fi |
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iscsi_username=$1 |
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iscsi_password=$2 |
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if [ $# -gt 2 ]; then |
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iscsi_in_username=$3 |
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iscsi_in_password=$4 |
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fi |
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fi |
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;; |
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esac |
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# extract target ip |
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case "$v" in |
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[[]*[]]:*) |
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iscsi_target_ip=${v#[[]} |
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iscsi_target_ip=${iscsi_target_ip%%[]]*} |
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v=${v#[[]$iscsi_target_ip[]]:} |
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;; |
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*) |
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iscsi_target_ip=${v%%[:]*} |
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v=${v#$iscsi_target_ip:} |
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;; |
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esac |
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# extract target name |
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case "$v" in |
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*:iqn.*) |
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iscsi_target_name=iqn.${v##*:iqn.} |
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v=${v%:iqn.*}: |
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;; |
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*:eui.*) |
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iscsi_target_name=iqn.${v##*:eui.} |
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v=${v%:iqn.*}: |
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;; |
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*:naa.*) |
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iscsi_target_name=iqn.${v##*:naa.} |
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v=${v%:iqn.*}: |
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;; |
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*) |
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warn "Invalid iscii target name, should begin with 'iqn.' or 'eui.' or 'naa.'" |
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return 1 |
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;; |
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esac |
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# parse the rest |
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OLDIFS="$IFS" |
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IFS=: |
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set $v |
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IFS="$OLDIFS" |
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iscsi_protocol=$1; shift # ignored |
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iscsi_target_port=$1; shift |
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if [ $# -eq 3 ]; then |
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iscsi_iface_name=$1; shift |
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fi |
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if [ $# -eq 2 ]; then |
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iscsi_netdev_name=$1; shift |
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fi |
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iscsi_lun=$1; shift |
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if [ $# -ne 0 ]; then |
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warn "Invalid parameter in iscsi: parameter!" |
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return 1 |
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fi |
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} |
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ip_to_var() { |
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local v=${1}: |
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local i |
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set -- |
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while [ -n "$v" ]; do |
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if [ "${v#\[*:*:*\]:}" != "$v" ]; then |
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# handle IPv6 address |
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i="${v%%\]:*}" |
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i="${i##\[}" |
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set -- "$@" "$i" |
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v=${v#\[$i\]:} |
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else |
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set -- "$@" "${v%%:*}" |
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v=${v#*:} |
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fi |
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done |
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unset ip srv gw mask hostname dev autoconf macaddr mtu |
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case $# in |
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0) autoconf="error" ;; |
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1) autoconf=$1 ;; |
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2) [ -n "$1" ] && dev=$1; [ -n "$2" ] && autoconf=$2 ;; |
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3) [ -n "$1" ] && dev=$1; [ -n "$2" ] && autoconf=$2; [ -n "$3" ] && mtu=$3 ;; |
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4) [ -n "$1" ] && dev=$1; [ -n "$2" ] && autoconf=$2; [ -n "$3" ] && mtu=$3; [ -n "$4" ] && macaddr=$4 ;; |
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*) [ -n "$1" ] && ip=$1; [ -n "$2" ] && srv=$2; [ -n "$3" ] && gw=$3; [ -n "$4" ] && mask=$4; |
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[ -n "$5" ] && hostname=$5; [ -n "$6" ] && dev=$6; [ -n "$7" ] && autoconf=$7; [ -n "$8" ] && mtu=$8; |
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if [ -n "${9}" -a -n "${10}" -a -n "${11}" -a -n "${12}" -a -n "${13}" -a -n "${14}" ]; then |
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macaddr="${9}:${10}:${11}:${12}:${13}:${14}" |
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fi |
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;; |
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esac |
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# ip=<ipv4-address> means anaconda-style static config argument cluster: |
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# ip=<ip> gateway=<gw> netmask=<nm> hostname=<host> mtu=<mtu> |
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# ksdevice={link|bootif|ibft|<MAC>|<ifname>} |
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if strstr "$autoconf" "*.*.*.*"; then |
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ip="$autoconf" |
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gw=$(getarg gateway=) |
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mask=$(getarg netmask=) |
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hostname=$(getarg hostname=) |
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dev=$(getarg ksdevice=) |
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autoconf="none" |
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mtu=$(getarg mtu=) |
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# handle special values for ksdevice |
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case "$dev" in |
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bootif|BOOTIF) dev=$(fix_bootif $(getarg BOOTIF=)) ;; |
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link) dev="" ;; # FIXME: do something useful with this |
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ibft) dev="" ;; # ignore - ibft is handled elsewhere |
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esac |
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fi |
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} |
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parse_ifname_opts() { |
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local IFS=: |
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set $1 |
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case $# in |
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7) |
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ifname_if=$1 |
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# udev requires MAC addresses to be lower case |
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ifname_mac=$(echo $2:$3:$4:$5:$6:$7 | sed 'y/ABCDEF/abcdef/') |
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;; |
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*) |
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die "Invalid arguments for ifname=" |
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;; |
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esac |
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case $ifname_if in |
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eth[0-9]|eth[0-9][0-9]|eth[0-9][0-9][0-9]|eth[0-9][0-9][0-9][0-9]) |
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warn "ifname=$ifname_if uses the kernel name space for interfaces" |
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warn "This can fail for multiple network interfaces and is discouraged!" |
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warn "Please use a custom name like \"netboot\" or \"bluesocket\"" |
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warn "or use biosdevname and no ifname= at all." |
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;; |
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esac |
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} |
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# some network driver need long time to initialize, wait before it's ready. |
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wait_for_if_link() { |
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local cnt=0 |
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local li |
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while [ $cnt -lt 600 ]; do |
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li=$(ip -o link show dev $1 2>/dev/null) |
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[ -n "$li" ] && return 0 |
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sleep 0.1 |
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cnt=$(($cnt+1)) |
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done |
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return 1 |
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} |
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wait_for_if_up() { |
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local cnt=0 |
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local li |
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while [ $cnt -lt 200 ]; do |
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li=$(ip -o link show up dev $1) |
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[ -n "$li" ] && [ -z "${li##*state UP*}" ] && return 0 |
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sleep 0.1 |
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cnt=$(($cnt+1)) |
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done |
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return 1 |
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} |
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wait_for_route_ok() { |
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local cnt=0 |
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while [ $cnt -lt 200 ]; do |
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li=$(ip route show) |
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[ -n "$li" ] && [ -z "${li##*$1*}" ] && return 0 |
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sleep 0.1 |
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cnt=$(($cnt+1)) |
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done |
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return 1 |
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} |
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wait_for_ipv6_auto() { |
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local cnt=0 |
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local li |
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while [ $cnt -lt 400 ]; do |
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li=$(ip -6 addr show dev $1) |
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strstr "$li" "dynamic" && return 0 |
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sleep 0.1 |
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cnt=$(($cnt+1)) |
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done |
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return 1 |
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} |
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linkup() { |
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wait_for_if_link $1 2>/dev/null\ |
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&& ip link set $1 up 2>/dev/null\ |
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&& wait_for_if_up $1 2>/dev/null |
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} |
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type hostname >/dev/null 2>&1 || \ |
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hostname() { |
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cat /proc/sys/kernel/hostname |
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} |
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iface_has_link() { |
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local interface="$1" flags="" |
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[ -n "$interface" ] || return 2 |
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interface="/sys/class/net/$interface" |
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[ -d "$interface" ] || return 2 |
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linkup "$1" |
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[ "$(cat $interface/carrier)" = 1 ] || return 1 |
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# XXX Do we need to reset the flags here? anaconda never bothered.. |
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} |
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find_iface_with_link() { |
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local iface_path="" iface="" |
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for iface_path in /sys/class/net/*; do |
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iface=${iface_path##*/} |
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str_starts "$iface" "lo" && continue |
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if iface_has_link $iface; then |
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echo "$iface" |
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return 0 |
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fi |
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done |
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return 1 |
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}
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