--- /dev/null
+#!/bin/sh
+#
+# kinstall.sh -- install updated kernel PPP driver in Linux kernel source
+# Michael Callahan callahan@maths.ox.ac.uk 17 May 1995
+#
+# This script is complicated because we want to avoid installing a driver
+# in a kernel if it won't work in that kernel. This means two things:
+# 1) we check the version of the kernel and refuse to install if the
+# kernel is too old;
+# 2) we check that the files already in the kernel aren't more recent
+# than the one we're about to install.
+# If either 1) or 2) occurs then we exit with an error message and don't
+# touch anything.
+#
+# In addition, we have to edit the Makefile in the drivers/net
+# directory to add support for the ppp-comp compression option.
+#
+# Finally, we have to check that certain include file stubs in
+# /usr/include/net exist, or else pppd won't compile. Phew!
+
+LINUXSRC=/usr/src/linux
+
+if [ $# -gt 1 ]; then
+ echo usage: $0 [linux-source-directory]
+ exit 1
+fi
+
+if [ $# -eq 1 ]; then
+ LINUXSRC=$1
+fi
+
+#
+# Make sure we can find the kernel source
+
+LINUXMK=$LINUXSRC/Makefile
+
+if [ ! -r $LINUXMK -o ! -d $LINUXSRC/drivers ]; then
+ echo There appears to be no kernel source distribution in $LINUXSRC.
+ echo Give the top-level kernel source directory as the argument to
+ echo this script.
+ echo usage: $0 [linux-source-directory]
+ exit 1
+fi
+
+#
+# Check that the kernel source Makefile includes the
+# VERSION, PATCHLEVEL, SUBLEVEL version-numbering scheme
+# introduced in 1.0.1
+if [ `egrep '^VERSION|^PATCHLEVEL|^SUBLEVEL' $LINUXMK | wc -l` -ne 3 ]; then
+ echo You appear to have a very old kernel. You must upgrade.
+ echo It is recommended that you upgrade to the most recent 1.2.X kernel.
+ exit 1
+fi
+
+#
+# Set the VERSION, PATCHLEVEL, SUBLEVEL variables
+VERSION=`egrep '^VERSION' $LINUXMK | sed 's/[^0-9]//g'`
+PATCHLEVEL=`egrep '^PATCHLEVEL' $LINUXMK | sed 's/[^0-9]//g'`
+SUBLEVEL=`egrep '^SUBLEVEL' $LINUXMK | sed 's/[^0-9]//g'`
+
+KERNEL=$VERSION.$PATCHLEVEL.$SUBLEVEL
+
+#
+# Pass judgement on the kernel version
+if [ $VERSION -eq 1 ]; then
+ if [ $PATCHLEVEL -eq 0 -o $PATCHLEVEL -eq 1 -a $SUBLEVEL -lt 14 ]; then
+ echo You appear to be running $KERNEL. There is no support for
+ echo kernels predating 1.1.14. It is recommended that you upgrade
+ echo to the most recent 1.2.X kernel.
+ exit 1
+ fi
+ if [ $PATCHLEVEL -eq 1 ]; then
+ echo You appear to be running $KERNEL. It is recommended that you
+ echo upgrade to the most recent 1.2.X kernel.
+ echo However, installation will proceed.
+ fi
+fi
+
+echo
+echo Installing into kernel version $KERNEL in $LINUXSRC
+echo
+
+#
+# convenience function to exit if the last command failed
+
+function bombiffailed () {
+ STATUS=$?
+ if [ $STATUS -ne 0 ]; then
+ echo "=== kinstall.sh exiting with failure status $STATUS"
+ exit $STATUS
+ fi
+}
+
+#
+# convenience function to compare two files marked with ==FILEVERSION
+# version numbers; returns success if $1 is newer than $2
+
+function newer () {
+ if [ -r $1 ] && f1rev=`fgrep "==FILEVERSION " $1 | sed 's/[^0-9]//g'`; then
+ if [ -r $2 ] && f2rev=`fgrep "==FILEVERSION " $2 | sed 's/[^0-9]//g'`; then
+ if [ "$f1rev" != "" ]; then
+ # return true if f2rev is empty or f1rev => f2rev
+ [ "$f2rev" = "" ] || [ $f1rev -ge $f2rev ]
+ else
+ # f1rev is empty, so false
+ false
+ fi
+ else
+ true # no FILEVERSION in $2, so $1 is newer
+ fi
+ else
+ false # no FILEVERSION in $1, so not newer
+ fi
+}
+
+#
+# Change the USE_SKB_PROTOCOL for correct operation on 1.3.x
+function update_ppp () {
+ mv $LINUXSRC/drivers/net/ppp.c $LINUXSRC/drivers/net/ppp.c.in
+ if [ "$VERSION.$PATCHLEVEL" = "1.3" ]; then
+ sed 's/#define USE_SKB_PROTOCOL 0/#define USE_SKB_PROTOCOL 1/' <$LINUXSRC/drivers/net/ppp.c.in >$LINUXSRC/drivers/net/ppp.c
+ else
+ sed 's/#define USE_SKB_PROTOCOL 1/#define USE_SKB_PROTOCOL 0/' <$LINUXSRC/drivers/net/ppp.c.in >$LINUXSRC/drivers/net/ppp.c
+ fi
+ rm $LINUXSRC/drivers/net/ppp.c.in
+}
+
+#
+# Install the files.
+
+function installfile () {
+ BASE=`basename $1`
+ if newer $1 $BASE; then
+ echo $1 is newer than $BASE, skipping
+ return 0
+ fi
+ BACKUP=`echo $1 | sed 's/.c$/.old.c/;s/.h$/.old.h/'`
+ if [ -f $1 -a $BACKUP != $1 ]; then
+ echo Saving old $1 as `basename $BACKUP`
+ mv $1 $BACKUP
+ bombiffailed
+ fi
+ echo Installing new $1
+ cp $BASE $1
+ bombiffailed
+ touch $1
+ bombiffailed
+ if [ "$2" = "yes" ]; then
+ update_ppp
+ fi
+}
+
+if [ -f $LINUXSRC/drivers/net/ppp.h ]; then
+ echo Moving old $LINUXSRC/drivers/net/ppp.h file out of the way
+ mv $LINUXSRC/drivers/net/ppp.h $LINUXSRC/drivers/net/ppp.old.h
+ bombiffailed
+fi
+
+for FILE in $LINUXSRC/drivers/net/bsd_comp.c \
+ $LINUXSRC/include/linux/if_ppp.h \
+ $LINUXSRC/include/linux/if_pppvar.h \
+ $LINUXSRC/include/linux/ppp-comp.h \
+ $LINUXSRC/include/linux/ppp_defs.h
+ do
+ installfile $FILE no
+done
+
+installfile $LINUXSRC/drivers/net/ppp.c yes
+
+for FILE in if.h if_arp.h route.h
+ do
+ if [ ! -f $LINUXSRC/include/linux/$FILE ]; then
+ echo Installing new $1
+ cp $FILE $LINUXSRC/include/linux/$FILE
+ bombiffailed
+ touch $LINUXSRC/include/linux/$FILE
+ bombiffailed
+ fi
+done
+
+echo -n 'Adding BSD compression module to drivers makefile...'
+NETMK=$LINUXSRC/drivers/net/Makefile
+fgrep bsd_comp.o $NETMK >/dev/null
+if [ ! "$?" = "0" ]; then
+ echo -n '.'
+ rm -f $NETMK.orig $NETMK.rej
+ if [ "$VERSION.$PATCHLEVEL" = "1.2" ]; then
+ (cd $LINUXSRC; patch -p1 -f -F30 -s) <patch-1.2
+ if [ ! "$?" = "0" ]; then
+ touch $NETMK.rej
+ fi
+ else
+ if [ "$VERSION.$PATCHLEVEL" = "1.3" ]; then
+ (cd $LINUXSRC; patch -p1 -f -F30 -s) <patch-1.3
+ if [ ! "$?" = "0" ]; then
+ touch $NETMK.rej
+ fi
+ else
+ touch $NETMK.rej
+ fi
+ fi
+#
+ if [ -e $NETMK.rej ]; then
+ rm -f $NETMK.rej
+ if [ -e $NETMK.orig ]; then
+ mv $NETMK.orig $NETMK
+ fi
+ sed 's/ppp.o$/ppp.o bsd_comp.o/g' <$NETMK >$NETMK.temp
+ bombiffailed
+ echo -n '.'
+ mv $NETMK $NETMK.orig
+ bombiffailed
+ echo -n '.'
+ mv $NETMK.temp $NETMK
+ bombiffailed
+ fi
+#
+ if [ -e $NETMK.orig ]; then
+ mv $NETMK.orig $NETMK.old
+ fi
+else
+ echo -n '(already there--skipping)'
+fi
+echo
+
+#
+# install header stub files in /usr/include/net
+
+for FILE in if_ppp.h \
+ if_pppvar.h \
+ ppp-comp.h \
+ if.h \
+ if_arp.h \
+ route.h \
+ ppp_defs.h
+ do
+ if [ ! -f /usr/include/net/$FILE ]; then
+ echo Installing stub include file in /usr/include/net/$FILE
+ echo "#include <linux/$FILE>" > /usr/include/net/$FILE
+ bombiffailed
+ chown 0:0 /usr/include/net/$FILE
+ bombiffailed
+ chmod 444 /usr/include/net/$FILE
+ bombiffailed
+ touch /usr/include/net/$FILE
+ bombiffailed
+ fi
+done
+
+for FILE in ip.h \
+ tcp.h
+ do
+ if [ ! -f /usr/include/netinet/$FILE ]; then
+ echo Installing stub include file in /usr/include/netinet/$FILE
+ if [ ! -f $LINUXSRC/include/linux/$FILE ]; then
+ echo "#include \"$LINUXSRC/net/inet/$FILE\"" >/usr/include/netinet/$FILE
+ else
+ echo "#include <linux/$FILE>" > /usr/include/netinet/$FILE
+ fi
+ chown 0:0 /usr/include/netinet/$FILE
+ bombiffailed
+ chmod 444 /usr/include/netinet/$FILE
+ bombiffailed
+ touch /usr/include/netinet/$FILE
+ bombiffailed
+ fi
+done
+
+echo "Kernel driver files installation done."
+exit 0
projects / ppp.git / blobdiff