Date: Fri, 8 Jan 2016 16:37:22 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r293425 - head/sys/boot/efi/boot1 Message-ID: <201601081637.u08GbM7S002548@repo.freebsd.org>
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Author: emaste Date: Fri Jan 8 16:37:22 2016 New Revision: 293425 URL: https://svnweb.freebsd.org/changeset/base/293425 Log: Add safety belt for boot1.efi file size Reviewed by: smh Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D4833 Modified: head/sys/boot/efi/boot1/Makefile head/sys/boot/efi/boot1/generate-fat.sh Modified: head/sys/boot/efi/boot1/Makefile ============================================================================== --- head/sys/boot/efi/boot1/Makefile Fri Jan 8 16:25:11 2016 (r293424) +++ head/sys/boot/efi/boot1/Makefile Fri Jan 8 16:37:22 2016 (r293425) @@ -79,8 +79,15 @@ boot1.o: ${.CURDIR}/../../common/ufsread # created by generate-fat.sh .include "${.CURDIR}/Makefile.fat" +BOOT1_MAXSIZE?= 131072 boot1.efifat: boot1.efi + @set -- `ls -l boot1.efi`; \ + x=$$(($$5-${BOOT1_MAXSIZE})); \ + if [ $$x -ge 0 ]; then \ + echo "boot1 $$x bytes too large; regenerate FAT templates?" >&2 ;\ + exit 1; \ + fi echo ${.OBJDIR} uudecode ${.CURDIR}/fat-${MACHINE}.tmpl.bz2.uu mv fat-${MACHINE}.tmpl.bz2 ${.TARGET}.bz2 Modified: head/sys/boot/efi/boot1/generate-fat.sh ============================================================================== --- head/sys/boot/efi/boot1/generate-fat.sh Fri Jan 8 16:25:11 2016 (r293424) +++ head/sys/boot/efi/boot1/generate-fat.sh Fri Jan 8 16:37:22 2016 (r293425) @@ -55,9 +55,20 @@ BOOT1_OFFSET=$(hd $OUTPUT_FILE | grep 'B # Convert to number of blocks BOOT1_OFFSET=$(echo 0x$BOOT1_OFFSET | awk '{printf("%x\n",$1/512);}') +# Record maximum boot1 size in bytes +case $BOOT1_SIZE in +*k) + BOOT1_MAXSIZE=$(expr ${BOOT1_SIZE%k} '*' 1024) + ;; +*) + BOOT1_MAXSIZE=$BOOT1_SIZE + ;; +esac + echo '# This file autogenerated by generate-fat.sh - DO NOT EDIT' > Makefile.fat echo '# $FreeBSD$' >> Makefile.fat echo "BOOT1_OFFSET=0x$BOOT1_OFFSET" >> Makefile.fat +echo "BOOT1_MAXSIZE=$BOOT1_MAXSIZE" >> Makefile.fat bzip2 $OUTPUT_FILE echo 'FAT template boot filesystem created by generate-fat.sh' > $OUTPUT_FILE.bz2.uu
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