Merge pull request samba-team#6 from dl566/fix-issue2-configuration-sync

samba-issue5-v1:  add feature of configuration files sync based on ctdb fix issue samba-team#5

ctdb/.gitignore

@@ -5,7 +5,6 @@ config.status
 configure
 ctdb.pc
 publish*.sh
-push*.sh
 web/packages
 TAGS
 tags

ctdb/client/ctdb_client.c

@@ -4658,6 +4658,34 @@ int ctdb_ctrl_enablescript(struct ctdb_context *ctdb, struct timeval timeout, ui
 
 	return 0;
 }
+/*sync configuration*/
+int ctdb_ctrl_syncconfig(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, const char *script)
+{
+	int ret;
+	TDB_DATA data;
+	int32_t res;
+	char *ctdb_base="/etc/ctdb";
+	char cmdarray[256] = {'\0'};
+	sprintf(cmdarray, "%s/pushconfig %s", ctdb_base, script);
+	ret = system(cmdarray);
+	if(ret != 0)
+	{
+		DEBUG(DEBUG_ERR, (__location__ "pushconfig into registry.tdb failed. ret: %d\n", ret));
+		return -1;
+	}
+	data.dsize = strlen(script) + 1;
+	data.dptr  = discard_const(script);
+
+	ret = ctdb_control(ctdb, destnode, 0, 
+			   CTDB_CONTROL_SYNC_CONFIG, 0, data, 
+			   NULL, NULL, &res, &timeout, NULL);
+	if (ret != 0 || res != 0) {
+		DEBUG(DEBUG_ERR,(__location__ " ctdb_control for syncconfig failed\n"));
+		return -1;
+	}
+
+	return 0;
+}
 
 /* disable an eventscript
  */

ctdb/config/notify.d.syncconfig

@@ -0,0 +1,32 @@
+#!/bin/sh
+. /etc/ctdb/pull_config.sh
+
+update_config()
+{
+	if [ "x$1" == "xall" ] ; then
+		pull_smb
+		pull_dns
+		pull_nfs
+	fi
+
+	if [ "x$1" == "xsmb" ] ; then
+		pull_smb
+	fi
+
+	if [ "x$1" == "xdns" ] ; then
+		pull_dns
+	fi
+
+	if [ "x$1" == "xnfs" ] ; then
+		pull_nfs
+	fi
+}
+
+  case "$1" in
+      sync)
+	    update_config $2
+        ;;
+      healthy)
+	    update_config $2
+	  ;;
+  esac

ctdb/config/notify.sh

@@ -11,6 +11,13 @@ nd="${d}/notify.d"
 
 ok=true
 
+echo "begin to execute notify.sh"
+
+if [ ! -f "/var/run/ctdb/synclock" ] ; then
+	touch /var/run/ctdb/synclock > /dev/null 2>&1
+
+fi
+
 for i in "${nd}/"* ; do
     # Don't run files matching basename
     case "${i##*/}" in
@@ -21,6 +28,11 @@ for i in "${nd}/"* ; do
     [ -x "$i" ] || continue
 
     # Flag failures
+    if [ "x$2" != "x" ] ; then
+	flock -x -w 5 /var/run/ctdb/synclock -c "\"$i\" \"$1\" \"$2\"" || ok=false
+	 continue
+    fi
+
     "$i" "$1" || ok=false
 done
 

ctdb/config/pull_config.sh

@@ -0,0 +1,222 @@
+#!/bin/sh
+tmp_dir="/var/run/ctdb"
+cache_file="$tmp_dir/netcache.$$"
+
+reload_smb()
+{
+	service smb status >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		return 0
+	fi
+	smbcontrol smbd reload-config >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		echo "failed to reload smb service."
+		return 1
+	fi
+
+	return 0
+}
+
+reload_nfs()
+{
+	service nfs-ganesha status >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		return 0
+	fi
+
+	service nfs-ganesha reload >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		echo "failed to reload nfs service."
+		return 1
+	fi
+	return 0
+}
+
+reload_dns()
+{
+	service dnsmasq status >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		return 0
+	fi
+	service dnsmasq restart >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		echo "failed to reload dnsmasq service."
+		return 1
+	fi
+
+	return 0
+}
+pull_smb()
+{
+	tmp_smb_file="$tmp_dir/smb.conf.$$"
+	touch $tmp_smb_file >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		echo "failed to create temp file for pull smb config."
+		return 1
+	fi
+
+	echo "begin to....."
+	rm -f $cache_file >/dev/null 2>&1
+	content=$(net registry enumerate "HKLM\Software\Samba\smbconf")
+	if [ $? -ne 0 ] ||[  x"$content" == x ] ; then
+		echo "Failed to read smb configuration from registry.tdb."
+		return 1
+	fi
+	for service in ` net registry enumerate 'HKLM\Software\Samba\smbconf' |grep "Keyname"|awk -F= '{print $2}' |sed 's/^[ ]*//g'`
+	do
+		echo "service is $service"
+		echo "[$service]" >> $tmp_smb_file
+
+		net registry enumerate "HKLM\Software\Samba\smbconf\\$service" |grep "Valuename" |awk -F= '{print $2}'|sed 's/^[ ]*//g' > $cache_file 2>/dev/null
+
+		while read valuename
+		do
+			echo "valuename is $valuename"
+			value=$(net registry getvalueraw "HKLM\Software\Samba\smbconf\\$service" "$valuename")
+			if [ $? -eq 0 ] ; then
+				echo "$valuename = $value" >> $tmp_smb_file
+			fi
+		done < $cache_file
+
+	done
+
+	mv $tmp_smb_file /etc/samba/smb.conf
+	if [ $? -ne 0 ] ; then
+		echo "failed to override smb.conf."
+		rm -rf $tmp_smb_file >/dev/null 2>&1
+		rm -rf $cache_file >/dev/null 2>&1
+		return 1
+	fi
+	rm -rf $tmp_smb_file >/dev/null 2>&1
+	rm -rf $cache_file >/dev/null 2>&1
+	reload_smb
+	if [ $? -ne 0 ] ; then
+		return 1
+	fi
+	return 0
+}
+pull_nfs()
+{
+	tmp_nfs_file="$tmp_dir/gluster.ganesha.conf.$$"
+	touch $tmp_nfs_file >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		echo "failed to create temp for pull nfs config."
+		return 1
+	fi
+
+	rm -rf $cache_file >/dev/null 2>&1
+	content=$(net registry enumerate "HKLM\Software\nfs")
+	if [ $? -ne 0 ] ; then
+		echo "Failed to read nfs configuration from registry.tdb."
+		return 1
+	fi
+
+	for export_id in `net registry enumerate 'HKLM\Software\nfs' |grep "Keyname"|awk -F= '{print $2}' |sed 's/^[ ]*//g'`
+	do
+		echo "EXPORT" >> $tmp_nfs_file
+		echo "{"      >> $tmp_nfs_file
+		net registry enumerate "HKLM\Software\nfs\\$export_id" |grep "Valuename" |awk -F= '{print $2}'|sed 's/^[ ]*//g' > $cache_file 2>/dev/null
+		while read valuename
+		do
+			if [ x"$valuename" == x"Name" -o x"$valuename" == x"Hostname" -o x"$valuename" == x"Volume" ] ; then
+				continue
+			fi
+			value=$(net registry getvalueraw "HKLM\Software\nfs\\$export_id" "$valuename")
+			if [ $? -eq 0 ] ; then
+				echo " $valuename = $value" >> $tmp_nfs_file
+			fi
+		done < $cache_file
+
+		echo "FSAL {" >> $tmp_nfs_file
+
+		value=$(net registry getvalueraw "HKLM\Software\nfs\\$export_id" Name)
+		if [ $? -eq 0 ] ; then
+			echo "    Name = $value" >> $tmp_nfs_file
+		fi
+
+		value=$(net registry getvalueraw "HKLM\Software\nfs\\$export_id" Hostname)
+		if [ $? -eq 0 ] ; then
+			echo "    Hostname = $value" >> $tmp_nfs_file 
+		fi
+
+		value=$(net registry getvalueraw "HKLM\Software\nfs\\$export_id" Volume)
+		if [ $? -eq 0 ] ; then
+			echo "    Volume = $value" >> $tmp_nfs_file
+		fi
+		echo " }" >> $tmp_nfs_file
+		echo "}" >> $tmp_nfs_file
+	done
+
+	mv $tmp_nfs_file /etc/ganesha/gluster.ganesha.conf
+	if [ $? -ne 0 ] ; then
+		echo "Failed to override nfs configuration."
+		rm -rf $tmp_nfs_file >/dev/null 2>&1
+		rm -rf $cache_file >/dev/null 2>&1
+		return 1
+	fi
+
+	rm -rf $tmp_nfs_file >/dev/null 2>&1
+	rm -rf $cache_file >/dev/null 2>&1
+	reload_nfs
+	if [ $? -ne 0 ] ; then
+		return 1
+	fi
+
+	return 0
+
+}
+
+
+pull_dns()
+{
+	tmp_dns_file="$tmp_dir/zone.conf.$$"
+	touch $tmp_dns_file >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		echo "failed to create file $tmp_dns_file."
+		return 1
+	fi
+
+	rm -f $cache_file >/dev/null 2>&1
+	content=$(net registry enumerate "HKLM\Software\dns")
+	if [ $? -ne 0 ] ; then
+		echo "Failed to read dns configuration from registry.tdb."
+		return 1;
+
+	fi	
+
+	for zone in ` net registry enumerate 'HKLM\Software\dns' |grep "Keyname"|awk -F= '{print $2}' |sed 's/^[ ]*//g'`
+	do
+		echo "zone is $zone"
+		echo "zone $zone" >> $tmp_dns_file
+		net registry enumerate "HKLM\Software\dns\\$zone" |grep "Valuename" |awk -F= '{print $2}'|sed 's/^[ ]*//g' > $cache_file 2>/dev/null	
+
+		while read valuename
+		do
+			echo "valuename is $valuename"
+			value=$(net registry getvalueraw "HKLM\Software\dns\\$zone" "$valuename")
+			if [ $? -eq 0 ] ; then
+				echo " $valuename $value" >> $tmp_dns_file
+			fi
+		done < $cache_file
+
+
+		echo "end zone" >> $tmp_dns_file
+	done
+
+	mv $tmp_dns_file /etc/zone.conf
+	if [ $? -ne 0 ] ; then
+		echo "failed to override zone.conf."
+		rm -rf $tmp_dns_file >/dev/null 2>&1
+		rm -rf $cache_file >/dev/null 2>&1
+		return 1
+	fi
+	rm -rf $tmp_dns_file >/dev/null 2>&1
+	rm -rf $cache_file >/dev/null 2>&1
+	reload_dns
+	if [ $? -ne 0 ] ; then
+		return 1
+	fi
+
+	return 0
+}
+