From bad5f10d82d1ffb23749bb8267c041380fbab309 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 3 Feb 2017 12:22:45 +0100
Subject: [run-virt/dhcp-busybox] Get WINS server from upstream DHCP, pass on
 to VMs via local DHCPD

---
 .../data/opt/openslx/scripts/systemd-udhcpc++            |  2 +-
 .../data/opt/openslx/scripts/udhcpc-openslx              |  5 +++++
 .../data/opt/openslx/scripts/systemd-run_virt_env        | 16 +++++++++++++++-
 .../data/opt/openslx/vmchooser/config/udhcpd-nat1.conf   |  2 +-
 4 files changed, 22 insertions(+), 3 deletions(-)

(limited to 'core')

diff --git a/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc++ b/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc++
index 76c4fe95..2f8b878d 100755
--- a/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc++
+++ b/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc++
@@ -8,7 +8,7 @@ UDHCPC_OPTS=""
 
 mkdir -p /run/udhcpc || echo "Could not create '/run/udhcpc'."
 
-/opt/openslx/sbin/udhcpc $UDHCPC_OPTS -O domain -O nissrv -O nisdomain -O wpad -O search -t 8 -s /opt/openslx/scripts/udhcpc-openslx -i "$NET_IF" -p "/run/udhcpc/udhcpc.$NET_IF.pid"
+/opt/openslx/sbin/udhcpc $UDHCPC_OPTS -O domain -O nissrv -O nisdomain -O wpad -O search -O wins -t 8 -s /opt/openslx/scripts/udhcpc-openslx -i "$NET_IF" -p "/run/udhcpc/udhcpc.$NET_IF.pid"
 RET=$?
 
 if [ "$RET" != 0 ]; then
diff --git a/core/modules/dhcpc-busybox/data/opt/openslx/scripts/udhcpc-openslx b/core/modules/dhcpc-busybox/data/opt/openslx/scripts/udhcpc-openslx
index 776f3f3b..13de9ff4 100755
--- a/core/modules/dhcpc-busybox/data/opt/openslx/scripts/udhcpc-openslx
+++ b/core/modules/dhcpc-busybox/data/opt/openslx/scripts/udhcpc-openslx
@@ -147,6 +147,11 @@ case "$1" in
 				sed -i "/^SLX_NET_SEARCH=/d" /opt/openslx/config
 				echo "SLX_NET_SEARCH='$search'" >> /opt/openslx/config
 			fi
+			# Same for WINS servers
+			if [ -z "$SLX_NET_WINS" ] && [ -n "$wins" ]; then
+				sed -i "/^SLX_NET_WINS=/d" /opt/openslx/config
+				echo "SLX_NET_WINS='$wins'" >> /opt/openslx/config
+			fi
 			
 			# Only if network is not ready yet
 			if [ ! -e "/run/network/network-ready" ]; then
diff --git a/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env b/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env
index f53983ec..68afd189 100755
--- a/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env
+++ b/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env
@@ -172,16 +172,30 @@ for wait in 1 1 2 2 3 end; do
 	. /opt/openslx/config
 done
 
+getips () {
+	# Output in one line by using echo without quotes
+	echo $(nslookup "$1" 2>/dev/null | grep -A 3 '^Name:' | grep '^Address .*: ' | awk '{print $3}')
+}
+
 # read the DNS configuration and configure the udhcpd
 [ -z "${SLX_DNS}" ] && SLX_DNS="8.8.8.8 8.8.4.4"
 [ -z "${SLX_NET_DOMAIN}" ] && SLX_NET_DOMAIN="virtual.site"
 [ -z "${SLX_NET_SEARCH}" ] && SLX_NET_SEARCH="virtual.site"
-sed -i "s#%DNSSERVER%#${SLX_DNS}#;s#%DOMAIN%#${SLX_NET_DOMAIN}#;s#%SEARCH%#${SLX_NET_SEARCH}#" "${DHCP_NAT_CONF}"
+# WINS - if not supplied, try to get it from the search base of our ldap config
+if [ -z "${SLX_NET_WINS}" ]; then
+	DC=$(grep -m1 -i '^BASE\s*DC=' "/etc/ldap.conf" | grep -o -i 'DC=.*' | sed -r 's/\s*,\s*DC=/./gI;s/^\s*DC=//I')
+	[ -z "$DC" ] && DC=$(grep -m1 -i '^ldap_search_base\s*=\s*DC=' "/etc/sssd/sssd.conf" | grep -o -i 'DC=.*'  | sed -r 's/\s*,\s*DC=/./gI;s/^\s*DC=//I')
+	[ -n "$DC" ] && SLX_NET_WINS=$(getips "$DC")
+fi
+[ -z "${SLX_NET_WINS}" ] && SLX_NET_WINS=$(getips "$SLX_NET_DOMAIN")
+[ -z "${SLX_NET_WINS}" ] && SLX_NET_WINS="0.0.0.0"
+sed -i "s#%DNSSERVER%#${SLX_DNS}#;s#%DOMAIN%#${SLX_NET_DOMAIN}#;s#%SEARCH%#${SLX_NET_SEARCH}#;s#%WINS%#${SLX_NET_WINS}#" "${DHCP_NAT_CONF}"
 
 # Make sure the primary vm running (we most likely never run more than one at a time anyways) always gets the same ip
 echo "static_lease $(echo "$MACADDRPREFIX:$MACADDRSUFFIX" | sed 's/%VMID%/01/') 192.168.101.20" >> "${DHCP_NAT_CONF}"
 
 mkdir -p /var/lib/udhcpd
+# TODO: systemd
 udhcpd -S "${DHCP_NAT_CONF}"
 
 # creating and configuring vsw2
diff --git a/core/modules/run-virt/data/opt/openslx/vmchooser/config/udhcpd-nat1.conf b/core/modules/run-virt/data/opt/openslx/vmchooser/config/udhcpd-nat1.conf
index 95d8ebc0..27aa63c3 100644
--- a/core/modules/run-virt/data/opt/openslx/vmchooser/config/udhcpd-nat1.conf
+++ b/core/modules/run-virt/data/opt/openslx/vmchooser/config/udhcpd-nat1.conf
@@ -34,7 +34,7 @@ pidfile         /var/run/udhcpd-nat1.pid
 option  dns     %DNSSERVER%
 option  subnet  255.255.255.0
 option  router  192.168.101.1
-option  wins    192.168.101.10
+option  wins    %WINS%
 option  domain  %DOMAIN%
 option  search  %SEARCH%
 option  lprsrv  192.168.101.1
-- 
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