From 7875e0f5d6f1939ab87c5b98a20b55bd06f2dada Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Tue, 1 Oct 2013 20:50:04 +0200
Subject: vserver.functions: add magically localhost for netns

---
 vserver.functions | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'vserver.functions')

diff --git a/vserver.functions b/vserver.functions
index a75d717..8c25f74 100644
--- a/vserver.functions
+++ b/vserver.functions
@@ -47,6 +47,14 @@ function _netnsProcessSingleGateway() {
     _addInterfaceCmd IP_ROUTE default via "$gw" dev "$iface"
 }
 
+function _netnsAddLocalhost() {
+    if [ -r "${1}/nflags" ]; then
+        if grep -q '^~LBACK_REMAP$' "${1}/nflags"; then
+            INTERFACES=( "${INTERFACES[@]}" "127.0.0.1/8" "::1/128" )
+        fi
+    fi
+}
+
 function _netnsFilterNetnsUmount() {
     local args=( "$@" )
 
@@ -93,13 +101,18 @@ function _generateInterfaceOptions() {
     ret=$?
 
     # add commands for default route
+    local netns=0
     for net in "$VSERVER_DIR/netns/"*; do
         test   -d "$net"            || continue
         test ! -e "${net}/disabled" || continue
 
         _netnsProcessSingleGateway "$net"
+        netns=1
     done
 
+    # if using netns, automatically add localhost
+    [ "$netns" != "0" ] && _netnsAddLocalhost "$VSERVER_DIR"
+
     return $ret
 }
 
-- 
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