dracut/0015-40network-replace-dhclient-with-wickedd-dhcp-supplic.patch

From 0aa152e662d2197f92617da4ab813fcd9be6f90f Mon Sep 17 00:00:00 2001
From: Pavel Wieczorkiewicz <pwieczorkiewicz@suse.com>
Date: Mon, 7 Apr 2014 16:26:57 +0200
Subject: [PATCH] 40network: replace dhclient with wickedd-dhcp-supplicant

SLES12 is using wickedd, so we need to replace dhclient with
wickedd-dhcp-supplicant.

References: bnc#866771

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 modules.d/40network/dhclient-script.sh | 156 ---------------------------------
 modules.d/40network/dhclient.conf      |   3 -
 modules.d/40network/ifup.sh            |  97 ++++++++++++++++++--
 modules.d/40network/kill-dhclient.sh   |  17 ----
 modules.d/40network/module-setup.sh    |  14 +--
 5 files changed, 99 insertions(+), 188 deletions(-)
 delete mode 100755 modules.d/40network/dhclient-script.sh
 delete mode 100644 modules.d/40network/dhclient.conf
 delete mode 100755 modules.d/40network/kill-dhclient.sh

Index: dracut-041/modules.d/40network/dhclient-script.sh
===================================================================
--- dracut-041.orig/modules.d/40network/dhclient-script.sh	2015-03-17 12:02:54.894703848 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,154 +0,0 @@
-#!/bin/sh
-
-PATH=/usr/sbin:/usr/bin:/sbin:/bin
-
-type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
-type ip_to_var >/dev/null 2>&1 || . /lib/net-lib.sh
-
-# We already need a set netif here
-netif=$interface
-
-# Huh? Interface configured?
-[ -f "/tmp/net.$netif.up" ] && exit 0
-
-setup_interface() {
-    ip=$new_ip_address
-    mtu=$new_interface_mtu
-    mask=$new_subnet_mask
-    bcast=$new_broadcast_address
-    gw=${new_routers%%,*}
-    domain=$new_domain_name
-    search=$(printf -- "$new_domain_search")
-    namesrv=$new_domain_name_servers
-    hostname=$new_host_name
-    lease_time=$new_dhcp_lease_time
-
-    [ -f /tmp/net.$netif.override ] && . /tmp/net.$netif.override
-
-    # Taken from debian dhclient-script:
-    # The 576 MTU is only used for X.25 and dialup connections
-    # where the admin wants low latency.  Such a low MTU can cause
-    # problems with UDP traffic, among other things.  As such,
-    # disallow MTUs from 576 and below by default, so that broken
-    # MTUs are ignored, but higher stuff is allowed (1492, 1500, etc).
-    if [ -n "$mtu" ] && [ $mtu -gt 576 ] ; then
-        if ! ip link set $netif mtu $mtu ; then
-            ip link set $netif down
-            ip link set $netif mtu $mtu
-            linkup $netif
-        fi
-    fi
-
-    ip addr add $ip${mask:+/$mask} ${bcast:+broadcast $bcast} \
-        valid_lft ${lease_time} preferred_lft ${lease_time} \
-        dev $netif
-
-    [ -n "$gw" ] && echo ip route replace default via $gw dev $netif > /tmp/net.$netif.gw
-
-    [ -n "${search}${domain}" ] && echo "search $search $domain" > /tmp/net.$netif.resolv.conf
-    if  [ -n "$namesrv" ] ; then
-        for s in $namesrv; do
-            echo nameserver $s
-        done
-    fi >> /tmp/net.$netif.resolv.conf
-
-    # Note: hostname can be fqdn OR short hostname, so chop off any
-    # trailing domain name and explicity add any domain if set.
-    [ -n "$hostname" ] && echo "echo ${hostname%.$domain}${domain:+.$domain} > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname
-}
-
-setup_interface6() {
-    domain=$new_domain_name
-    search=$(printf -- "$new_domain_search")
-    namesrv=$new_domain_name_servers
-    hostname=$new_host_name
-    [ -n "$new_dhcp_lease_time" ] && lease_time=$new_dhcp_lease_time
-    [ -n "$new_max_life" ] && lease_time=$new_max_life
-    preferred_lft=$lease_time
-    [ -n "$new_preferred_life" ] && preferred_lft=$new_preferred_life
-
-    [ -f /tmp/net.$netif.override ] && . /tmp/net.$netif.override
-
-    ip -6 addr add ${new_ip6_address}/${new_ip6_prefixlen} \
-        dev ${netif} scope global \
-        ${lease_time:+valid_lft $lease_time} \
-        ${preferred_lft:+preferred_lft ${preferred_lft}}
-
-    [ -n "${search}${domain}" ] && echo "search $search $domain" > /tmp/net.$netif.resolv.conf
-    if  [ -n "$namesrv" ] ; then
-        for s in $namesrv; do
-            echo nameserver $s
-        done
-    fi >> /tmp/net.$netif.resolv.conf
-
-    # Note: hostname can be fqdn OR short hostname, so chop off any
-    # trailing domain name and explicity add any domain if set.
-    [ -n "$hostname" ] && echo "echo ${hostname%.$domain}${domain:+.$domain} > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname
-}
-
-case $reason in
-    PREINIT)
-        echo "dhcp: PREINIT $netif up"
-        linkup $netif
-        ;;
-
-    PREINIT6)
-        echo "dhcp: PREINIT $netif up"
-        linkup $netif
-        ;;
-
-    BOUND)
-        echo "dhcp: BOND setting $netif"
-        unset layer2
-        if [ -f /sys/class/net/$netif/device/layer2 ]; then
-            read layer2 < /sys/class/net/$netif/device/layer2
-        fi
-        if [ "$layer2" != "0" ]; then
-            if ! arping -q -D -c 2 -I $netif $new_ip_address ; then
-                warn "Duplicate address detected for $new_ip_address while doing dhcp. retrying"
-                exit 1
-            fi
-        fi
-        unset layer2
-        setup_interface
-        set | while read line; do
-            [ "${line#new_}" = "$line" ] && continue
-            echo "$line"
-        done >/tmp/dhclient.$netif.dhcpopts
-
-        {
-            echo '. /lib/net-lib.sh'
-            echo "setup_net $netif"
-            echo "source_hook initqueue/online $netif"
-            [ -e /tmp/net.$netif.manualup ] || echo "/sbin/netroot $netif"
-            echo "rm -f -- $hookdir/initqueue/setup_net_$netif.sh"
-        } > $hookdir/initqueue/setup_net_$netif.sh
-
-        echo "[ -f /tmp/net.$netif.did-setup ]" > $hookdir/initqueue/finished/dhclient-$netif.sh
-        >/tmp/net.$netif.up
-        ;;
-
-    BOUND6)
-        echo "dhcp: BOND6 setting $netif"
-        setup_interface6
-
-        set | while read line; do
-            [ "${line#new_}" = "$line" ] && continue
-            echo "$line"
-        done >/tmp/dhclient.$netif.dhcpopts
-
-        {
-            echo '. /lib/net-lib.sh'
-            echo "setup_net $netif"
-            echo "source_hook initqueue/online $netif"
-            [ -e /tmp/net.$netif.manualup ] || echo "/sbin/netroot $netif"
-            echo "rm -f -- $hookdir/initqueue/setup_net_$netif.sh"
-        } > $hookdir/initqueue/setup_net_$netif.sh
-
-        echo "[ -f /tmp/net.$netif.did-setup ]" > $hookdir/initqueue/finished/dhclient-$netif.sh
-        >/tmp/net.$netif.up
-        ;;
-    *) echo "dhcp: $reason";;
-esac
-
-exit 0
Index: dracut-041/modules.d/40network/dhclient.conf
===================================================================
--- dracut-041.orig/modules.d/40network/dhclient.conf	2015-01-31 12:54:52.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,3 +0,0 @@
-request subnet-mask, broadcast-address, time-offset, routers,
-        domain-name, domain-name-servers, domain-search, host-name,
-        root-path, interface-mtu;
Index: dracut-041/modules.d/40network/ifup.sh
===================================================================
--- dracut-041.orig/modules.d/40network/ifup.sh	2015-01-31 12:54:52.000000000 +0100
+++ dracut-041/modules.d/40network/ifup.sh	2015-03-17 12:27:22.361149708 +0100
@@ -86,21 +86,106 @@
         [ -e /tmp/net.$(cat /sys/class/net/$netif/address).did-setup ] && exit 0
 fi
 
+dhcp_apply() {
+    if [ -f /tmp/leaseinfo.${netif}.dhcp.ipv${1:1:1} ]; then
+        . /tmp/leaseinfo.${netif}.dhcp.ipv${1:1:1}
+    else
+        warn "DHCP failed";
+        return 1
+    fi
+
+    if [ -z "${IPADDR}" ] || [ -z "${INTERFACE}" ]; then
+           warn "Missing crucial DHCP variables"
+           return 1
+    fi
+
+    # Assign IP address
+    ip $1 addr add "$IPADDR" ${BROADCAST:+broadcast $BROADCAST} dev "$INTERFACE"
+
+    # Assign network route the interface is attached to
+    if [ -n "${NETWORK}" ]; then
+        ip $1 route add "$NETWORK"/"$PREFIXLEN" dev "$INTERFACE"
+    fi
+
+    # Assign provided routes
+    local r route=()
+    if [ -n "${ROUTES}" ]; then
+        for r in ${ROUTES}; do
+            route=(${r//,/ })
+            ip $1 route add "$route[0]"/"$route[1]" via "$route[2]" dev "$INTERFACE"
+        done
+    fi
+
+    # Assign provided routers
+    local g
+    if [ -n "${GATEWAYS}" ]; then
+        for g in ${GATEWAYS}; do
+            ip $1 route add default via "$g" dev "$INTERFACE" && break
+        done
+    fi
+
+    # Setup hostname
+    [ -n "${HOSTNAME}" ] && hostname "$HOSTNAME"
+
+    # If nameserver= has not been specified, use what dhcp provides
+    if [ ! -s /tmp/net.$netif.resolv.conf ]; then
+        if [ -n "${DNSDOMAIN}" ]; then
+            echo domain "${DNSDOMAIN}"
+        fi >> /tmp/net.$netif.resolv.conf
+
+        if [ -n "${DNSSEARCH}" ]; then
+            echo search "${DNSSEARCH}"
+        fi >> /tmp/net.$netif.resolv.conf
+
+        if  [ -n "${DNSSERVERS}" ] ; then
+            for s in ${DNSSERVERS}; do
+                echo nameserver "$s"
+            done
+        fi >> /tmp/net.$netif.resolv.conf
+    fi
+    [ -e /tmp/net.$netif.resolv.conf ] && \
+        cp -f /tmp/net.$netif.resolv.conf /etc/resolv.conf
+
+    info "DHCP is finished successfully"
+    return 0
+}
+
 # Run dhclient
 do_dhcp() {
     # dhclient-script will mark the netif up and generate the online
     # event for nfsroot
     # XXX add -V vendor class and option parsing per kernel
 
-    [ -e /tmp/dhclient.$netif.pid ] && return 0
+    [ -f /tmp/leaseinfo.${netif}.dhcp.ipv${1:1:1} ] && return 0
+
+    info "Preparation for DHCP transaction"
+
+    local dhclient=''
+    if [ "$1" = "-4" ] ; then
+        dhclient="wickedd-dhcp4"
+    elif [ "$1" = "-6" ] ; then
+        dhclient="wickedd-dhcp6"
+    fi
+
+    # Address changed
+    ip $1 addr flush dev "$netif"
 
     if ! iface_has_link $netif; then
-        echo "No carrier detected"
-        return 1
+        warn "No carrier detected"
+        warn "Trying to set $netif up..."
+        ip $1 link set dev "$netif" up
+        if ! iface_has_link $netif; then
+            warn "Failed..."
+            return 1
+        fi
     fi
+
     echo "Starting dhcp for interface $netif"
-    dhclient "$@" -1 -q -cf /etc/dhclient.conf -pf /tmp/dhclient.$netif.pid -lf /tmp/dhclient.$netif.lease $netif \
-        || echo "dhcp failed"
+    $dhclient --test $netif > /tmp/leaseinfo.${netif}.dhcp.ipv${1:1:1}
+    dhcp_apply $1 || return $?
+
+    echo $netif > /tmp/setup_net_${netif}.ok
+    return 0
 }
 
 load_ipv6() {
@@ -226,8 +311,6 @@
     fi
 fi
 
-# XXX need error handling like dhclient-script
-
 if [ -e /tmp/bridge.info ]; then
     . /tmp/bridge.info
 # start bridge if necessary
Index: dracut-041/modules.d/40network/kill-dhclient.sh
===================================================================
--- dracut-041.orig/modules.d/40network/kill-dhclient.sh	2015-03-17 12:02:54.906704510 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,15 +0,0 @@
-#!/bin/sh
-
-for f in /tmp/dhclient.*.pid; do
-    [ -e $f ] || continue
-    read PID < $f;
-    kill $PID >/dev/null 2>&1
-done
-
-sleep 0.1
-
-for f in /tmp/dhclient.*.pid; do
-    [ -e $f ] || continue
-    read PID < $f;
-    kill -9 $PID >/dev/null 2>&1
-done
Index: dracut-041/modules.d/40network/module-setup.sh
===================================================================
--- dracut-041.orig/modules.d/40network/module-setup.sh	2015-03-17 12:02:55.006710127 +0100
+++ dracut-041/modules.d/40network/module-setup.sh	2015-03-17 12:37:51.868466193 +0100
@@ -1,10 +1,13 @@
 #!/bin/bash
 
+WICKEDD_DHCP_PATH="/usr/lib/wicked/bin"
+WICKED_EXT_PATH="/etc/wicked/extensions"
+
 # called by dracut
 check() {
     local _program
 
-    require_binaries ip arping dhclient || return 1
+    require_binaries ip arping $WICKEDD_DHCP_PATH/wickedd-dhcp4 $WICKEDD_DHCP_PATH/wickedd-dhcp6 || return 1
 
     return 255
 }
@@ -71,17 +74,18 @@
 # called by dracut
 install() {
     local _arch _i _dir
-    inst_multiple ip arping dhclient sed
+    inst_multiple ip arping hostname sed
     inst_multiple -o ping ping6
     inst_multiple -o brctl
     inst_multiple -o teamd teamdctl teamnl
     inst_simple /etc/libnl/classid
+    inst_simple "$WICKEDD_DHCP_PATH/wickedd-dhcp4" "/usr/sbin/wickedd-dhcp4"
+    inst_simple "$WICKEDD_DHCP_PATH/wickedd-dhcp6" "/usr/sbin/wickedd-dhcp6"
+    inst_libdir_file "libwicked*.so.*"
+    inst_libdir_file "libdbus-1.so.*"
     inst_script "$moddir/ifup.sh" "/sbin/ifup"
     inst_script "$moddir/netroot.sh" "/sbin/netroot"
-    inst_script "$moddir/dhclient-script.sh" "/sbin/dhclient-script"
     inst_simple "$moddir/net-lib.sh" "/lib/net-lib.sh"
-    inst_simple -H "/etc/dhclient.conf"
-    cat "$moddir/dhclient.conf" >> "${initdir}/etc/dhclient.conf"
     inst_hook pre-udev 50 "$moddir/ifname-genrules.sh"
     inst_hook pre-udev 60 "$moddir/net-genrules.sh"
     inst_hook cmdline 91 "$moddir/dhcp-root.sh"
@@ -92,7 +96,6 @@
     inst_hook cmdline 97 "$moddir/parse-bridge.sh"
     inst_hook cmdline 98 "$moddir/parse-ip-opts.sh"
     inst_hook cmdline 99 "$moddir/parse-ifname.sh"
-    inst_hook cleanup 10 "$moddir/kill-dhclient.sh"
 
     _arch=$(uname -m)