[1/3] Remove tabs and fix spacing: ipv6 scripts

The network-scripts are a mix of tabs and spaces (!!) as well as
completely inconsistent indentation (some 2, some 4).

This is a series of 3 patches to move the entire of network-scripts to
2-space indentation for consistency so I can develop on the codebase
without my brain bleeding. I don't feel strongly about 2 vs 4... 2 was
just most common in the first file I picked, so I used that.

This set is in 3 sets for easier reviewing and easier reverting if
necessary:

* 1/3 - ipv6 files
* 2/3 - network-functions - it needed it's own
* 3/3 - ifup/ifdown files

1 files changed, 62 insertions, 61 deletions

diff --git a/sysconfig/network-scripts/ifdown-ipv6 b/sysconfig/network-scripts/ifdown-ipv6
index f06f56dd..1452da0e 100755
--- a/sysconfig/network-scripts/ifdown-ipv6
+++ b/sysconfig/network-scripts/ifdown-ipv6
@@ -58,80 +58,81 @@ ipv6_test testonly || exit 0
 # Test device status
 ipv6_test_device_status $DEVICE
 if [ $? != 0 -a $? != 11 ]; then
-	# device doesn't exist or other problem occurs
-	exit 1
+    # device doesn't exist or other problem occurs
+    exit 1
 fi
 
 if [ ! "$IPV6_SET_SYCTL" = "no" ]; then
-  # Switch some sysctls to secure mode
-  /sbin/sysctl -e -w net.ipv6.conf.$SYSCTLDEVICE.forwarding=0 >/dev/null 2>&1
-  /sbin/sysctl -e -w net.ipv6.conf.$SYSCTLDEVICE.accept_ra=0 >/dev/null 2>&1
-  /sbin/sysctl -e -w net.ipv6.conf.$SYSCTLDEVICE.accept_redirects=0 >/dev/null 2>&1
+    # Switch some sysctls to secure mode
+    /sbin/sysctl -e -w net.ipv6.conf.$SYSCTLDEVICE.forwarding=0 >/dev/null 2>&1
+    /sbin/sysctl -e -w net.ipv6.conf.$SYSCTLDEVICE.accept_ra=0 >/dev/null 2>&1
+    /sbin/sysctl -e -w net.ipv6.conf.$SYSCTLDEVICE.accept_redirects=0 >/dev/null 2>&1
 fi
 /sbin/ip link set $DEVICE addrgenmode eui64 >/dev/null 2>&1
 
 # Test status of tun6to4 device
 ipv6_test_device_status tun6to4
 if [ $? = 0 -o $? = 11 ]; then
-	# Device exists
-	valid6to4config="yes"
-
-	if [ -z "$IPV6TO4_RELAY" ]; then
-		IPV6TO4_RELAY="192.88.99.1"
-	fi
-
-	# Get IPv4 address from interface
-	if [ -n "$IPV6TO4_IPV4ADDR" ]; then
-		# Take special configured from config file (precedence 1)
-		ipv4addr="$IPV6TO4_IPV4ADDR"
-
-		# Get IPv4 address from interface first
-		ipv4addrlocal="$(ipv6_get_ipv4addr_of_device $DEVICE)"
-		if [ -z "$ipv4addrlocal" ]; then
-			# Take configured from config file
-			ipv4addrlocal="$IPADDR"
-		fi
-	else
-		# Get IPv4 address from interface first (has precedence 2)
-		ipv4addr="$(ipv6_get_ipv4addr_of_device $DEVICE)"
-		if [ -z "$ipv4addr" ]; then
-			# Take configured from config file (precedence 3)
-			ipv4addr="$IPADDR"
-		fi
-		ipv4addrlocal="$ipv4addr"
-	fi
-
-	# Get local IPv4 address of dedicated tunnel
-	ipv4addr6to4local="$(ipv6_get_ipv4addr_of_tunnel tun6to4 local)"
-
-	if [ -z "$ipv4addrlocal" -o -z "$ipv4addr6to4local" ]; then
-		# no IPv4 addresses given, 6to4 sure not configured
-		valid6to4config="no"
-	else
-		# Check against configured 6to4 tunnel to see if this interface was used before
-		if [ "$ipv4addrlocal" != "$ipv4addr6to4local" ]; then
-			# IPv4 address of interface does't match local tunnel address, interface was not used for current 6to4 setup
-			valid6to4config="no"
-		fi
-	fi
-
+    # Device exists
+    valid6to4config="yes"
+
+    if [ -z "$IPV6TO4_RELAY" ]; then
+        IPV6TO4_RELAY="192.88.99.1"
+    fi
+
+    # Get IPv4 address from interface
+    if [ -n "$IPV6TO4_IPV4ADDR" ]; then
+        # Take special configured from config file (precedence 1)
+        ipv4addr="$IPV6TO4_IPV4ADDR"
+
+        # Get IPv4 address from interface first
+        ipv4addrlocal="$(ipv6_get_ipv4addr_of_device $DEVICE)"
+        if [ -z "$ipv4addrlocal" ]; then
+            # Take configured from config file
+            ipv4addrlocal="$IPADDR"
+        fi
+    else
+        # Get IPv4 address from interface first (has precedence 2)
+        ipv4addr="$(ipv6_get_ipv4addr_of_device $DEVICE)"
+        if [ -z "$ipv4addr" ]; then
+            # Take configured from config file (precedence 3)
+            ipv4addr="$IPADDR"
+        fi
+        ipv4addrlocal="$ipv4addr"
+    fi
+
+    # Get local IPv4 address of dedicated tunnel
+    ipv4addr6to4local="$(ipv6_get_ipv4addr_of_tunnel tun6to4 local)"
+
+    if [ -z "$ipv4addrlocal" -o -z "$ipv4addr6to4local" ]; then
+        # no IPv4 addresses given, 6to4 sure not configured
+        valid6to4config="no"
+    else
+        # Check against configured 6to4 tunnel to see if this interface was
+        # used before
+        if [ "$ipv4addrlocal" != "$ipv4addr6to4local" ]; then
+            # IPv4 address of interface does't match local tunnel address,
+            # interface was not used for current 6to4 setup
+            valid6to4config="no"
+        fi
+    fi
 fi
 
 # Shutdown of 6to4, if configured
 if [ "$valid6to4config" = "yes" ]; then
-	if [ -n "$IPV6TO4_ROUTING" ]; then
-		# Delete routes to local networks
-		for devsuf in $IPV6TO4_ROUTING; do
-			dev="${devsuf%%-*}"
-			ipv6_cleanup_6to4_device $dev
-		done
-	fi
-
-	# Delete all configured 6to4 address
-	ipv6_cleanup_6to4_tunnels tun6to4
-
-	# Control running radvd
-	ipv6_trigger_radvd down "$IPV6_RADVD_TRIGGER_ACTION" $IPV6_RADVD_PIDFILE
+    if [ -n "$IPV6TO4_ROUTING" ]; then
+        # Delete routes to local networks
+        for devsuf in $IPV6TO4_ROUTING; do
+            dev="${devsuf%%-*}"
+            ipv6_cleanup_6to4_device $dev
+        done
+    fi
+
+    # Delete all configured 6to4 address
+    ipv6_cleanup_6to4_tunnels tun6to4
+
+    # Control running radvd
+    ipv6_trigger_radvd down "$IPV6_RADVD_TRIGGER_ACTION" $IPV6_RADVD_PIDFILE
 fi
 
 # Delete all current configured IPv6 addresses on this interface