|  | #! /bin/sh | 
|  | # Script to apply kernel patches. | 
|  | #   usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ] | 
|  | #     The source directory defaults to /usr/src/linux, and the patch | 
|  | #     directory defaults to the current directory. | 
|  | # e.g. | 
|  | #   scripts/patch-kernel . .. | 
|  | #      Update the kernel tree in the current directory using patches in the | 
|  | #      directory above to the latest Linus kernel | 
|  | #   scripts/patch-kernel . .. -ac | 
|  | #      Get the latest Linux kernel and patch it with the latest ac patch | 
|  | #   scripts/patch-kernel . .. 2.4.9 | 
|  | #      Gets standard kernel 2.4.9 | 
|  | #   scripts/patch-kernel . .. 2.4.9 -ac | 
|  | #      Gets 2.4.9 with latest ac patches | 
|  | #   scripts/patch-kernel . .. 2.4.9 -ac11 | 
|  | #      Gets 2.4.9 with ac patch ac11 | 
|  | #   Note: It uses the patches relative to the Linus kernels, not the | 
|  | #   ac to ac relative patches | 
|  | # | 
|  | # It determines the current kernel version from the top-level Makefile. | 
|  | # It then looks for patches for the next sublevel in the patch directory. | 
|  | # This is applied using "patch -p1 -s" from within the kernel directory. | 
|  | # A check is then made for "*.rej" files to see if the patch was | 
|  | # successful.  If it is, then all of the "*.orig" files are removed. | 
|  | # | 
|  | #       Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995. | 
|  | # | 
|  | # Added support for handling multiple types of compression. What includes | 
|  | # gzip, bzip, bzip2, zip, compress, and plaintext. | 
|  | # | 
|  | #       Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997. | 
|  | # | 
|  | # Added ability to stop at a given version number | 
|  | # Put the full version number (i.e. 2.3.31) as the last parameter | 
|  | #       Dave Gilbert <linux@treblig.org>, 11th December 1999. | 
|  |  | 
|  | # Fixed previous patch so that if we are already at the correct version | 
|  | # not to patch up. | 
|  | # | 
|  | # Added -ac option, use -ac or -ac9 (say) to stop at a particular version | 
|  | #       Dave Gilbert <linux@treblig.org>, 29th September 2001. | 
|  | # | 
|  | # Add support for (use of) EXTRAVERSION (to support 2.6.8.x, e.g.); | 
|  | # update usage message; | 
|  | # fix some whitespace damage; | 
|  | # be smarter about stopping when current version is larger than requested; | 
|  | #	Randy Dunlap <rdunlap@xenotime.net>, 2004-AUG-18. | 
|  | # | 
|  | # Add better support for (non-incremental) 2.6.x.y patches; | 
|  | # If an ending version number if not specified, the script automatically | 
|  | # increments the SUBLEVEL (x in 2.6.x.y) until no more patch files are found; | 
|  | # however, EXTRAVERSION (y in 2.6.x.y) is never automatically incremented | 
|  | # but must be specified fully. | 
|  | # | 
|  | # patch-kernel does not normally support reverse patching, but does so when | 
|  | # applying EXTRAVERSION (x.y) patches, so that moving from 2.6.11.y to 2.6.11.z | 
|  | # is easy and handled by the script (reverse 2.6.11.y and apply 2.6.11.z). | 
|  | #	Randy Dunlap <rdunlap@xenotime.net>, 2005-APR-08. | 
|  |  | 
|  | PNAME=patch-kernel | 
|  |  | 
|  | # Set directories from arguments, or use defaults. | 
|  | sourcedir=${1-/usr/src/linux} | 
|  | patchdir=${2-.} | 
|  | stopvers=${3-default} | 
|  |  | 
|  | if [ "$1" == -h -o "$1" == --help -o ! -r "$sourcedir/Makefile" ]; then | 
|  | cat << USAGE | 
|  | usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ] | 
|  | source directory defaults to /usr/src/linux, | 
|  | patch directory defaults to the current directory, | 
|  | stopversion defaults to <all in patchdir>. | 
|  | USAGE | 
|  | exit 1 | 
|  | fi | 
|  |  | 
|  | # See if we have any -ac options | 
|  | for PARM in $* | 
|  | do | 
|  | case $PARM in | 
|  | -ac*) | 
|  | gotac=$PARM; | 
|  |  | 
|  | esac; | 
|  | done | 
|  |  | 
|  | # --------------------------------------------------------------------------- | 
|  | # arg1 is filename | 
|  | noFile () { | 
|  | echo "cannot find patch file: ${patch}" | 
|  | exit 1 | 
|  | } | 
|  |  | 
|  | # --------------------------------------------------------------------------- | 
|  | backwards () { | 
|  | echo "$PNAME does not support reverse patching" | 
|  | exit 1 | 
|  | } | 
|  |  | 
|  | # --------------------------------------------------------------------------- | 
|  | # Find a file, first parameter is basename of file | 
|  | # it tries many compression mechanisms and sets variables to say how to get it | 
|  | findFile () { | 
|  | filebase=$1; | 
|  |  | 
|  | if [ -r ${filebase}.gz ]; then | 
|  | ext=".gz" | 
|  | name="gzip" | 
|  | uncomp="gunzip -dc" | 
|  | elif [ -r ${filebase}.bz  ]; then | 
|  | ext=".bz" | 
|  | name="bzip" | 
|  | uncomp="bunzip -dc" | 
|  | elif [ -r ${filebase}.bz2 ]; then | 
|  | ext=".bz2" | 
|  | name="bzip2" | 
|  | uncomp="bunzip2 -dc" | 
|  | elif [ -r ${filebase}.zip ]; then | 
|  | ext=".zip" | 
|  | name="zip" | 
|  | uncomp="unzip -d" | 
|  | elif [ -r ${filebase}.Z ]; then | 
|  | ext=".Z" | 
|  | name="uncompress" | 
|  | uncomp="uncompress -c" | 
|  | elif [ -r ${filebase} ]; then | 
|  | ext="" | 
|  | name="plaintext" | 
|  | uncomp="cat" | 
|  | else | 
|  | return 1; | 
|  | fi | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | # --------------------------------------------------------------------------- | 
|  | # Apply a patch and check it goes in cleanly | 
|  | # First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension | 
|  |  | 
|  | applyPatch () { | 
|  | echo -n "Applying $1 (${name})... " | 
|  | if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir | 
|  | then | 
|  | echo "done." | 
|  | else | 
|  | echo "failed.  Clean up yourself." | 
|  | return 1; | 
|  | fi | 
|  | if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ] | 
|  | then | 
|  | echo "Aborting.  Reject files found." | 
|  | return 1; | 
|  | fi | 
|  | # Remove backup files | 
|  | find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | # --------------------------------------------------------------------------- | 
|  | # arg1 is patch filename | 
|  | reversePatch () { | 
|  | echo -n "Reversing $1 (${name}) ... " | 
|  | if $uncomp ${patchdir}/"$1"${ext} | patch -p1 -Rs -N -E -d $sourcedir | 
|  | then | 
|  | echo "done." | 
|  | else | 
|  | echo "failed.  Clean it up." | 
|  | exit 1 | 
|  | fi | 
|  | if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ] | 
|  | then | 
|  | echo "Aborting.  Reject files found." | 
|  | return 1 | 
|  | fi | 
|  | # Remove backup files | 
|  | find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \; | 
|  |  | 
|  | return 0 | 
|  | } | 
|  |  | 
|  | # set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION | 
|  | TMPFILE=`mktemp .tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; } | 
|  | grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE | 
|  | tr -d [:blank:] < $TMPFILE > $TMPFILE.1 | 
|  | source $TMPFILE.1 | 
|  | rm -f $TMPFILE* | 
|  | if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ] | 
|  | then | 
|  | echo "unable to determine current kernel version" >&2 | 
|  | exit 1 | 
|  | fi | 
|  |  | 
|  | NAME=`grep ^NAME $sourcedir/Makefile` | 
|  | NAME=${NAME##*=} | 
|  |  | 
|  | echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)" | 
|  |  | 
|  | # strip EXTRAVERSION to just a number (drop leading '.' and trailing additions) | 
|  | EXTRAVER= | 
|  | if [ x$EXTRAVERSION != "x" ] | 
|  | then | 
|  | if [ ${EXTRAVERSION:0:1} == "." ]; then | 
|  | EXTRAVER=${EXTRAVERSION:1} | 
|  | else | 
|  | EXTRAVER=$EXTRAVERSION | 
|  | fi | 
|  | EXTRAVER=${EXTRAVER%%[[:punct:]]*} | 
|  | #echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER" | 
|  | fi | 
|  |  | 
|  | #echo "stopvers=$stopvers" | 
|  | if [ $stopvers != "default" ]; then | 
|  | STOPSUBLEVEL=`echo $stopvers | cut -d. -f3` | 
|  | STOPEXTRA=`echo $stopvers | cut -d. -f4` | 
|  | #echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL/, STOPEXTRA=/$STOPEXTRA/" | 
|  | else | 
|  | STOPSUBLEVEL=9999 | 
|  | STOPEXTRA=9999 | 
|  | fi | 
|  |  | 
|  | # This all assumes a 2.6.x[.y] kernel tree. | 
|  | # Don't allow backwards/reverse patching. | 
|  | if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then | 
|  | backwards | 
|  | fi | 
|  |  | 
|  | if [ x$EXTRAVER != "x" ]; then | 
|  | CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER" | 
|  | else | 
|  | CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" | 
|  | fi | 
|  |  | 
|  | if [ x$EXTRAVER != "x" ]; then | 
|  | echo "backing up to: $VERSION.$PATCHLEVEL.$SUBLEVEL" | 
|  | patch="patch-${CURRENTFULLVERSION}" | 
|  | findFile $patchdir/${patch} || noFile ${patch} | 
|  | reversePatch ${patch} || exit 1 | 
|  | fi | 
|  |  | 
|  | # now current is 2.6.x, with no EXTRA applied, | 
|  | # so update to target SUBLEVEL (2.6.SUBLEVEL) | 
|  | # and then to target EXTRAVER (2.6.SUB.EXTRAVER) if requested. | 
|  | # If not ending sublevel is specified, it is incremented until | 
|  | # no further sublevels are found. | 
|  |  | 
|  | if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then | 
|  | while :				# incrementing SUBLEVEL (s in v.p.s) | 
|  | do | 
|  | CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" | 
|  | EXTRAVER= | 
|  | if [ $stopvers == $CURRENTFULLVERSION ]; then | 
|  | echo "Stopping at $CURRENTFULLVERSION base as requested." | 
|  | break | 
|  | fi | 
|  |  | 
|  | SUBLEVEL=$((SUBLEVEL + 1)) | 
|  | FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" | 
|  | #echo "#___ trying $FULLVERSION ___" | 
|  |  | 
|  | if [ $((SUBLEVEL)) -gt $((STOPSUBLEVEL)) ]; then | 
|  | echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)" | 
|  | exit 1 | 
|  | fi | 
|  |  | 
|  | patch=patch-$FULLVERSION | 
|  | # See if the file exists and find extension | 
|  | findFile $patchdir/${patch} || noFile ${patch} | 
|  |  | 
|  | # Apply the patch and check all is OK | 
|  | applyPatch $patch || break | 
|  | done | 
|  | #echo "#___sublevel all done" | 
|  | fi | 
|  |  | 
|  | # There is no incremental searching for extraversion... | 
|  | if [ "$STOPEXTRA" != "" ]; then | 
|  | while :				# just to allow break | 
|  | do | 
|  | # apply STOPEXTRA directly (not incrementally) (x in v.p.s.x) | 
|  | FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$STOPEXTRA" | 
|  | #echo "#... trying $FULLVERSION ..." | 
|  | patch=patch-$FULLVERSION | 
|  |  | 
|  | # See if the file exists and find extension | 
|  | findFile $patchdir/${patch} || noFile ${patch} | 
|  |  | 
|  | # Apply the patch and check all is OK | 
|  | applyPatch $patch || break | 
|  | #echo "#___extraver all done" | 
|  | break | 
|  | done | 
|  | fi | 
|  |  | 
|  | if [ x$gotac != x ]; then | 
|  | # Out great user wants the -ac patches | 
|  | # They could have done -ac (get latest) or -acxx where xx=version they want | 
|  | if [ $gotac == "-ac" ]; then | 
|  | # They want the latest version | 
|  | HIGHESTPATCH=0 | 
|  | for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.* | 
|  | do | 
|  | ACVALUE=`echo $PATCHNAMES | sed -e 's/^.*patch-[0-9.]*-ac\([0-9]*\).*/\1/'` | 
|  | # Check it is actually a recognised patch type | 
|  | findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} || break | 
|  |  | 
|  | if [ $ACVALUE -gt $HIGHESTPATCH ]; then | 
|  | HIGHESTPATCH=$ACVALUE | 
|  | fi | 
|  | done | 
|  |  | 
|  | if [ $HIGHESTPATCH -ne 0 ]; then | 
|  | findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} || break | 
|  | applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} | 
|  | else | 
|  | echo "No -ac patches found" | 
|  | fi | 
|  | else | 
|  | # They want an exact version | 
|  | findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} || { | 
|  | echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION.  Hohum." | 
|  | exit 1 | 
|  | } | 
|  | applyPatch patch-${CURRENTFULLVERSION}${gotac} | 
|  | fi | 
|  | fi |