userspace/rootfs_override: store information about dotconfig source

Store information about protocol, server IP and filename of retrived dotconfig.
Information is stored in:
-- /tmp/dot-config_proto
-- /tmp/dot-config_host
-- /tmp/dot-config_filename

When dotconfig is local don't store source information.
When web-interface changes dot-config, remove source information because after
changes configuration is stored locally.
This is going to be used by SNMP

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

userspace/rootfs_override/etc/init.d/S20dot-config

@@ -8,9 +8,13 @@
 # First, read dot-config to get the new location, if any.
 dotconfig=/wr/etc/dot-config
 tmpconfig=/tmp/dot-config
+tmpdir=/tmp
 
 if [ -f $dotconfig ]; then
     . $dotconfig
+    echo "local" > "$tmpdir"/dot-config_proto
+else
+    echo "no_config" > "$tmpdir"/dot-config_proto
 fi
 
 # Create /etc/resolv.conf, so we can use it. /etc is ramdisk anyways
@@ -33,6 +37,11 @@ if [ -n "$CONFIG_DOTCONF_URL" ]; then
     host=$(echo $URL | cut -d/ -f 3)
     filename=$(echo $URL | cut -d/ -f 4-)
 
+    # save proto, host and filename of dot-config, to be used by SNMPd
+    echo "$proto" > "$tmpdir"/dot-config_proto
+    echo "$host" > "$tmpdir"/dot-config_host
+    echo "$filename" > "$tmpdir"/dot-config_filename
+
     rm -f $tmpconfig
     case $proto in
 	http|ftp)

userspace/rootfs_override/var/www/functions.php

@@ -1282,7 +1282,8 @@ function safefilerewrite($dotconfig, $tmpdotconfig){
 
 function apply_kconfig(){
 	$dotconfigapp = "/usr/wr/bin/apply_dot-config";
-	shell_exec($dotconfigapp. " > /dev/null 2>&1 &");
+	/* So far all changes via web-interface are on local file. Notify apply_dot-config that changes are on local file */
+	shell_exec($dotconfigapp. " local_config > /dev/null 2>&1 &");
 }
 
 	

userspace/rootfs_override/wr/bin/apply_dot-config

@@ -6,6 +6,9 @@
 # require restarting running processes).  The script is called at
 # every boot by /etc/init.d/S20dot-config
 
+# When called with "local_config" parameter, files with information about
+# dotconfig source are removed (used by SNMP)
+
 # We create a temporary file in /tmp, to avoid wearing flash if not
 # needed. Then we replace the real file if different.
 
@@ -18,6 +21,14 @@ copy_conf() {
     done
 }
 
+#check if config is local
+if [ "$1" == "local_config" ]; then
+	# remove source information in case previous config was received from
+	# network
+	rm /tmp/dot-config_*
+	echo "local" > /tmp/dot-config_proto
+fi
+
 # Check and complain, but we need to edit some files even if unconfigured.
 if [ -f /wr/etc/dot-config ]; then
     . /wr/etc/dot-config