9 files changed, 61 insertions, 15 deletions
diff --git a/sysconfig/network-scripts/ifdown-post b/sysconfig/network-scripts/ifdown-post
index cb7ce8c1..bf1c0c18 100755
--- a/sysconfig/network-scripts/ifdown-post
+++ b/sysconfig/network-scripts/ifdown-post
@@ -4,7 +4,10 @@
 
 cd /etc/sysconfig/network-scripts
 
-. $1
+# These are currently unused.
+# CONFIG=$1
+# . network-functions
+# source_config
 
 # Notify programs that have requested notification
 ( cd /var/run/netreport || exit
diff --git a/sysconfig/network-scripts/ifdown-ppp b/sysconfig/network-scripts/ifdown-ppp
index f3226419..299fb8a9 100755
--- a/sysconfig/network-scripts/ifdown-ppp
+++ b/sysconfig/network-scripts/ifdown-ppp
@@ -3,7 +3,9 @@ PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
 cd /etc/sysconfig/network-scripts
 
-. $1
+CONFIG=$1
+. network-functions
+source_config
 
 if [ ! -f /var/run/ppp-$DEVICE.dev ]; then
     # ppp isn't running, or we didn't start it
diff --git a/sysconfig/network-scripts/ifdown-sl b/sysconfig/network-scripts/ifdown-sl
index cb3a8f12..ea9bae61 100755
--- a/sysconfig/network-scripts/ifdown-sl
+++ b/sysconfig/network-scripts/ifdown-sl
@@ -3,7 +3,9 @@ PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
 cd /etc/sysconfig/network-scripts
 
-. $1
+CONFIG=$1
+. network-functions
+source_config
 
 # signals ifup-sl not to persist
 rm -f /var/run/sl-$DEVICE.dev
diff --git a/sysconfig/network-scripts/ifup b/sysconfig/network-scripts/ifup
index ab1e6f7f..359ef3cb 100755
--- a/sysconfig/network-scripts/ifup
+++ b/sysconfig/network-scripts/ifup
@@ -3,6 +3,8 @@ PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
 cd /etc/sysconfig/network-scripts
 
+. network-functions
+
 CONFIG=$1
 
 [ -z "$CONFIG" ] && {
@@ -24,7 +26,7 @@ if [ $UID != 0 ]; then
     exit 1
 fi
 
-. $CONFIG
+source_config
 
 if [ "foo$2" = "fooboot" -a "${ONBOOT}" = "no" ]
 then
diff --git a/sysconfig/network-scripts/ifup-plip b/sysconfig/network-scripts/ifup-plip
index ea423944..6a341194 100755
--- a/sysconfig/network-scripts/ifup-plip
+++ b/sysconfig/network-scripts/ifup-plip
@@ -1,7 +1,9 @@
 #!/bin/sh
 PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
-. $1
+CONFIG=$1
+. network-functions
+source_config
 
 if [ "foo$2" = "fooboot" -a ${ONBOOT} = "no" ]
 then
diff --git a/sysconfig/network-scripts/ifup-post b/sysconfig/network-scripts/ifup-post
index 7f79930e..dd1f8389 100755
--- a/sysconfig/network-scripts/ifup-post
+++ b/sysconfig/network-scripts/ifup-post
@@ -2,7 +2,10 @@
 
 cd /etc/sysconfig/network-scripts
 
-. $1
+CONFIG=$1
+. network-functions
+
+source_config
 
 DEVICETYPE=`echo $DEVICE | sed "s/[0-9]*$//"`
 REALDEVICE=`echo $DEVICE | sed 's/:.*//g'`
@@ -15,11 +18,11 @@ fi
 /etc/sysconfig/network-scripts/ifup-routes ${DEVICE}
 
 if [ "$ISALIAS" = no ] ; then
+    allow_null_glob_expansion=foo
     for alias in /etc/sysconfig/network-scripts/ifcfg-${DEVICE}:* ; do
-	if [ -f $alias ] ; then
-	    /etc/sysconfig/network-scripts/ifup $alias
-	fi
+	/etc/sysconfig/network-scripts/ifup $alias
     done
+    unset allow_null_glob_expansion
 fi
 
 if [ `hostname` = '(none)' -o `hostname` = localhost -a ${DEVICE} != lo ]; then
diff --git a/sysconfig/network-scripts/ifup-ppp b/sysconfig/network-scripts/ifup-ppp
index 7b5cb377..9d09038f 100755
--- a/sysconfig/network-scripts/ifup-ppp
+++ b/sysconfig/network-scripts/ifup-ppp
@@ -1,6 +1,9 @@
 #!/bin/sh
 PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
+CONFIG=$1
+. network-functions
+
 # ifup-post for PPP is handled through /etc/ppp/ip-up
 
 if [ "$1" != daemon ] ; then
@@ -10,7 +13,7 @@ fi
 
 shift
 
-. $1
+source_config
 
 if [ -z "$DISCONNECTTIMEOUT" ]; then
   DISCONNECTTIMEOUT=2
@@ -67,6 +70,11 @@ if [ -n "${DEBUG}" ] ; then
   opts="$opts debug"
 fi
 
+CHATSCRIPT=/etc/sysconfig/network-scripts/chat-$DEVNAME
+[ -f $CHATSCRIPT ] || {
+  CHATSCRIPT=/etc/sysconfig/network-scripts/chat-$PARENTDEVNAME
+}
+
 while : ; do
   (logger -p daemon.info -t ifup-ppp \
     "pppd started for $DEVICE on $MODEMPORT at $LINESPEED" &)&
@@ -75,7 +83,7 @@ while : ; do
   /usr/sbin/pppd -detach $opts $MODEMPORT $LINESPEED \
     remotename $DEVICE ipparam $DEVICE \
     ${PPPOPTIONS} \
-    connect "/usr/sbin/chat ${DEBUG:+-v} -f /etc/sysconfig/network-scripts/chat-$DEVICE"
+    connect "/usr/sbin/chat ${DEBUG:+-v} -f $CHATSCRIPT"
 
   # exit if we're not supposed to persist or our lock file has disappeared 
   if [ "$PERSIST" != "yes" -o ! -f /var/run/ppp-$DEVICE.dev ]; then
diff --git a/sysconfig/network-scripts/ifup-sl b/sysconfig/network-scripts/ifup-sl
index aad0b051..c0ad24d5 100755
--- a/sysconfig/network-scripts/ifup-sl
+++ b/sysconfig/network-scripts/ifup-sl
@@ -3,14 +3,16 @@ PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
 # ifup-post can't be done for slip :-( Solution: use PPP
 
+# become a daemon in case we have to persist.
 if [ "$1" != daemon ] ; then
   $0 daemon $*&
   exit 0
 fi
-
 shift
 
-. $1
+CONFIG=$1
+. network-functions
+source_config
 
 if [ "foo$2" = "fooboot" -a ${ONBOOT} = "no" ]
 then
@@ -29,7 +31,11 @@ fi
   exit 1
 }
 
-[ -f /etc/sysconfig/network-scripts/dip-$DEVICE ] || {
+DIPSCRIPT=/etc/sysconfig/network-scripts/dip-$DEVNAME
+[ -f $DIPSCRIPT ] || {
+  DIPSCRIPT=/etc/sysconfig/network-scripts/dip-$PARENTDEVNAME
+}
+[ -f $DIPSCRIPT ] || {
   echo "/etc/sysconfig/network-scripts/dip-$DEVICE does not exist"
   echo "ifup-sl for $DEVICE exiting"
   logger -p daemon.info -t ifup-sl \
@@ -41,7 +47,7 @@ while : ; do
   echo > /var/run/sl-$DEVICE.dev
   (logger -p daemon.info -t ifup-sl \
     "dip started for $DEVICE on $MODEMPORT at $LINESPEED" &)&
-  doexec /usr/sbin/dip dip-$DEVICE /etc/sysconfig/network-scripts/dip-$DEVICE
+  doexec /usr/sbin/dip dip-$DEVICE $DIPSCRIPT
   if [ "$PERSIST" != "yes" -o ! -f /var/run/sl-$DEVICE.dev ] ; then
     exit 0
   fi
diff --git a/sysconfig/network-scripts/network-functions b/sysconfig/network-scripts/network-functions
new file mode 100644
index 00000000..f637c7ee
--- /dev/null
+++ b/sysconfig/network-scripts/network-functions
@@ -0,0 +1,18 @@
+# This is not a shell script; it provides functions to network scripts
+# that source it.
+
+source_config ()
+{
+    DEVNAME=`echo $CONFIG | sed 's/^ifcfg-//g'`
+
+    . $CONFIG
+    if echo $CONFIG | grep -q '[^g]-' ; then
+	PARENTCONFIG=`echo $CONFIG | sed 's/-[^-]*$//g'`
+	PARENTDEVNAME=`echo $PARENTCONFIG | sed 's/^ifcfg-//g'`
+	[ -f $PARENTCONFIG ] || {
+	    echo "Missing config file $PARENTCONFIG." >&2
+	    exit 1
+	}
+	. $PARENTCONFIG
+    fi
+}