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新建脚本 CoreDisplay-patcher.command 内容如下：
#!/bin/sh thiscommand=$0 # change for debug purposes CoreDisplayLocation="/System/Library/Frameworks/CoreDisplay.framework/Versions/A/CoreDisplay" # for development # CoreDisplayLocation="/Users/<user>/Desktop/CoreDisplay" # Current CoreDisplay md5 Checksum CoreDisplayCurrent="$(md5 -q $CoreDisplayLocation)" # Current CoreDisplay md5 Checksum of the '(__DATA,__data)' section exported by otool # This makes it possible to detect a patch regardless of the signing certificate oToolCoreDisplayCurrent="$(otool -t $CoreDisplayLocation |tail -n +2 |md5 -q)" # md5 checksum of '(__DATA,__data)' section exported by otool from unpatched CoreDisplays # for future use of detecting a false patch, where the executible's checksum is changed by codesigning but not the actual code. oToolCoreDisplayUnpatched=( 49cd8062ed1c8f610b71e9a3231cf804 '10.12 16A254g' 1 8e1030235b90d6ab0644bd7a1b6f9cdb '10.12 16A284a' 1 f4c6e84ffa97e06624e5504edd87bf7d '10.12 16A284a' 1 # I don't know why these two are different 4cba52b41ceee7bc658020c9e58780a3 '10.12 16A294a' 1 d41d8cd98f00b204e9800998ecf8427e '10.12 16A313a' 1 aa7607dd72a2a4ca70ce094a2fc39cce '10.12 ' 1 # Sierra 10.12 release 172b7e2fe2e45e99b078e69684dd3c10 '10.12.1' 2 9c717568024daa81c364a839f09a1bfd '10.12.2 and 10.12.3' 3 b7e8464b101f343012ba28cbd2db5ee8 '10.12.4 16E195' 3 54a5a1adfb1225411bacf5c3ee0b4d9a '10.12.5 16F73' 3 9a653ffdfb5e1bcfaa71412000d0b111 '10.12.6 16G29' 3 5f51331dce01f1ced84643f6c996e324 '10.13.2 (17C88) and 10.13.3 (17D47)' 4 6e04ad9d1f2bf43dc01ed92a0ba4b8ac '10.13.4 (17E199)' 4 a273850d90c3cdf39f17ad63ed43203a '10.13.5 (17F77)' 4 714a9e14ccc64b0cf4bef2f083087d8e '10.14.2 (18C54)' 5 176fcc0d47bcdfb463357c3864bf9bd1 '10.14.4 (18E226)' 5 814fe7a8695f6583d821b5665f6df71a '10.14.5 (18F132)' 5 105051509e563ba96f190ed78a52feb9 '10.14.6 (18G87)' 5 ) # md5 checksum of '(__DATA,__data)' section exported by otool from patched CoreDisplays oToolCoreDisplayPatched=( 4e469fbf1c36d96fc25fb931c6670649 '10.12 16A254g' b6ee4943c2fce505faceb568e1c8f4b1 '10.12 16A284a' 82f97933a3ae90d47054316fa8259f6c '10.12 16A284a' 1371f71ca7949cfbe01ede8e8b52e61d '10.12 16A294a' f9c185d9e4c4ba12d5ecf41483055e39 '10.12 16A313a' eb27b5d68e9fb15aa65ea0153637eae2 '10.12 ' # Sierra 10.12 release cf8373138af4671a561c1a4d6cdba771 '10.12.1' e9d7a42b6613a45a69a41e8099d0e369 '10.12.2 and 10.12.3' ec01e0df5f71699c77bf2650a1c84f4f '10.12.4 16E195' 8b876f14be2bf7b1bfd3f89341bce0f6 '10.12.5 16F73' 6708362921f852600e59e68c3e811eda '10.12.6 16G29' a337a6a85264817d78a90122ebbc2723 '10.13.2 (17C88) and 10.13.3 (17D47)' 11882f5e04a525da6701777c814c920a '10.13.4 (17E199)' b5dd02fe05903d7c39791afc642f9b2b '10.13.5 (17F77)' 2d71736504e14882b2eb5e994859ec09 '10.14.2 (18C54)' 2d71736504e14882b2eb5e994859ec09 '10.14.4 (18E226)' 2d71736504e14882b2eb5e994859ec09 '10.14.5 (18F132)' 2d71736504e14882b2eb5e994859ec09 '10.14.6 (18G87)' ) function makeExit { printf "Closing...\n" exit } function askExit { read -p "Do you want to continue? [Y/n] " -n 1 -r echo if [[ ! $REPLY =~ ^[Yy]$ ]]; then makeExit fi } function SIPInfo { printf "Google for 'MacOS System Integrity Protection' to get more info on the subject.\n" } function help { printf "Using this script without input will patch CoreDisplay if a supported version can be found.\n" printf "Supported arguments:\n" printf "patch [v1-v3]\t patch on a specific version\n" printf "\t\t eg. $(basename $thiscommand) patch v2\n" printf "unpatch\t\t undo patch\n" printf "status\t\t Shows you if you have an known or unknown patch\n" printf "md5\t\t gives all your md5 hashes\n" printf "help\t\t show this help message\n" } function testSIP { if hash csrutil 2>/dev/null; then if [[ "$(csrutil status | head -n 1)" == *"status: enabled (Custom Configuration)"* ]]; then printf "SIP might or might not be disabled\n" printf "This script might or might not be working\n" printf "Check \"\$ csrutil status\"\n" SIPInfo askExit elif [[ "$(csrutil status | head -n 1)" == *"status: enabled"* ]]; then printf "SIP is enabled, this script will only work if SIP is disabled\n" if [[ -z $1 ]]; then makeExit fi elif [[ "$(csrutil status | head -n 1)" == *"status: disabled"* ]]; then printf "SIP looks to be disabled, all good!\n" fi fi } function CoreDisplayPatch { testSIP case "$1" in 1) printf "Patching CoreDisplay with patch version 1\n" sudo perl -i.bak -pe '$before = qr"\xB8\x01\x00\x00\x00\xF6\xC1\x01\x0F\x85\x05\x04\x00\x00"s;s/$before/\x31\xC0\x90\x90\x90\x0F\x1F\x00\xE9\x06\x04\x00\x00\x90/g' $CoreDisplayLocation sudo touch /System/Library/Extensions printf "Re-signing $CoreDisplayLocation\n" sudo codesign -f -s - $CoreDisplayLocation ;; 2) printf "Patching CoreDisplay with patch version 2\n" sudo perl -i.bak -pe '$before = qr"\xB8\x01\x00\x00\x00\xF6\xC1\x01\x0F\x85\x96\x04\x00\x00"s;s/$before/\x31\xC0\x90\x90\x90\x90\x90\x90\xE9\x97\x04\x00\x00\x90/g' $CoreDisplayLocation sudo touch /System/Library/Extensions printf "Re-signing $CoreDisplayLocation\n" sudo codesign -f -s - $CoreDisplayLocation ;; 3) printf "Patching CoreDisplay with patch version 3\n" sudo perl -i.bak -pe '$before = qr"\xB8\x01\x00\x00\x00\xF6\xC1\x01\x0F\x85\xAD\x04\x00\x00"s;s/$before/\x31\xC0\x90\x90\x90\x90\x90\x90\xE9\xAE\x04\x00\x00\x90/g' $CoreDisplayLocation sudo touch /System/Library/Extensions printf "Re-signing $CoreDisplayLocation\n" sudo codesign -f -s - $CoreDisplayLocation ;; 4) printf "Patching CoreDisplay with patch version 4\n" sudo perl -i.bak -pe '$oldtest1 = qr"\xE8\x37\x02\x00\x00\xBB\xE6\x02\x00\xE0\x85\xC0\x0F\x85\x9C\x00\x00\x00"s;$newtest1 = "\xE8\x37\x02\x00\x00\xBB\xE6\x02\x00\xE0\x31\xC0\x0F\x85\x9C\x00\x00\x00"; $oldtest2 = qr"\xE8\x65\x00\x00\x00\x85\xC0\xBB\xE6\x02\x00\xE0\x0F\x85\xCA\xFE\xFF\xFF"s;$newtest2 = "\xE8\x65\x00\x00\x00\x31\xC0\xBB\xE6\x02\x00\xE0\x0F\x85\xCA\xFE\xFF\xFF";s/$oldtest1/$newtest1/g;s/$oldtest2/$newtest2/g' $CoreDisplayLocation sudo touch /System/Library/Extensions printf "Re-signing $CoreDisplayLocation\n" sudo codesign -f -s - $CoreDisplayLocation printf "Running 'sudo update_dyld_shared_cache' (Might need a re-run after reboot) - CAN TAKE A WHILE (Maybe even 10/30 minutes)" sudo update_dyld_shared_cache ;; # Version 5 is an experimental patch for Mojave 10.14.1 and 10.14.2 from https://github.com/Floris497/mac-pixel-clock-patch-V2/issues/280. 5) printf "Patching CoreDisplay with patch version 5\n" sudo perl -i.bak -pe '$before = qr"\xBB\x01\x00\x00\x00\xA8\x01\x0F\x85"s;s/$before/\x31\xDB\x90\x90\x90\x90\x90\x90\xE9/g' $CoreDisplayLocation sudo touch /System/Library/Extensions printf "Re-signing $CoreDisplayLocation\n" sudo codesign -f -s - $CoreDisplayLocation sudo update_dyld_shared_cache ;; *) printf "This patch does not exist, make sure you used the right patch identfier\n" exit ;; esac } function CoreDisplayUnpatch { testSIP if [[ -f "$CoreDisplayLocation.bak" ]]; then printf "Moving backup file back in place\n" sudo mv $CoreDisplayLocation.bak $CoreDisplayLocation else printf "No backup found, the patch has either not been applied, or the backup file has been deleted." fi } function CoreDisplayPrintAllMD5 { echo "---- BEGINNING MD5 HASH SUMS ---- version: $(sw_vers -productVersion) build:$(sw_vers -buildVersion)" echo printf " otool CoreDisplay: $(otool -t $CoreDisplayLocation |tail -n +2 |md5 -q)\n" if [[ -f "$CoreDisplayLocation.bak" ]]; then printf " otool CoreDisplay.bak: $(otool -t $CoreDisplayLocation.bak |tail -n +2 |md5 -q)\n" else printf " otool CoreDisplay.bak: NO FILE (this is okay)\n" fi printf " CoreDisplay: $(md5 -q $CoreDisplayLocation)\n" if [[ -f "$CoreDisplayLocation.bak" ]]; then printf " CoreDisplay.bak: $(md5 -q $CoreDisplayLocation.bak)\n" else printf " CoreDisplay.bak: NO FILE (this is okay)\n" fi echo echo "---- ENDING MD5 HASH SUMS -------" } function testCoreDisplayPatch { if [[ ! -f "$CoreDisplayLocation.bak" ]]; then echo "Patch failed to run" elif [[ $(otool -t $CoreDisplayLocation.bak |tail -n +2 |md5 -q) != $(otool -t $CoreDisplayLocation |tail -n +2 |md5 -q) ]]; then echo "The code of CoreDisplay changed, the patch was probably successful." else echo "The code is still the same. Patch seemed to run, but was probably for the wrong version." echo "If you are running a new OS, run $thiscommand md5 and ask the maintainer of this script to add support for your system." fi } function test { if [[ ! -z $1 && $1 == "status" ]]; then testSIP "Don't Exit" # Just checking patch status, can do it even if SIP is enabled else testSIP fi printf "\n" nothingWasFound=true; for ((i=0; i < ${#CoreDisplayUnpatched[@]}; i+=3)); do if [[ $CoreDisplayCurrent == ${CoreDisplayUnpatched[$i]} ]]; then printf "Detected unpatched CoreDisplay on OS X %s.\n" "${CoreDisplayUnpatched[$i+1]}" nothingWasFound=false if [[ ! -z $1 ]]; then if [[ $1 == "patch" ]]; then CoreDisplayPatch ${CoreDisplayUnpatched[$i+2]} makeExit fi fi fi done for ((i=0; i < ${#oToolCoreDisplayUnpatched[@]}; i+=3)); do if [[ $oToolCoreDisplayCurrent == ${oToolCoreDisplayUnpatched[$i]} ]]; then printf "(otool) Detected unpatched CoreDisplay on OS X %s.\n" "${oToolCoreDisplayUnpatched[$i+1]}" nothingWasFound=false if [[ ! -z $1 ]]; then if [[ $1 == "patch" ]]; then CoreDisplayPatch ${oToolCoreDisplayUnpatched[$i+2]} makeExit fi fi fi done for ((i=0; i < ${#CoreDisplayPatched[@]}; i+=2)); do if [[ $CoreDisplayCurrent == ${CoreDisplayPatched[$i]} ]]; then printf "Detected patched CoreDisplay on OS X %s.\n" "${CoreDisplayPatched[$i+1]}" nothingWasFound=false fi done for ((i=0; i < ${#oToolCoreDisplayPatched[@]}; i+=2)); do if [[ $oToolCoreDisplayCurrent == ${oToolCoreDisplayPatched[$i]} ]]; then printf "(otool) Detected patched CoreDisplay on OS X %s.\n" "${oToolCoreDisplayPatched[$i+1]}" nothingWasFound=false fi done if $nothingWasFound; then echo "Unknown version of CoreDisplay found." CoreDisplayPrintAllMD5 fi } function options { if [[ $1 == "patch" ]]; then #test if there is a backup file if [[ -f "$CoreDisplayLocation.bak" ]]; then printf "A backup file already exists - If you force this patch on an already patched version you will lose your original backup!\n" printf "Be careful: Having no working version of CoreDisplay requires you to reinstall the OS.\n" printf "It might be wise to undo the patch before trying to redo it using: $thiscommand unpatch\n" askExit fi if [[ -z $2 ]]; then printf "Did not specify patch version\n" makeExit fi case "$2" in v1) CoreDisplayPatch 1;; v2) CoreDisplayPatch 2;; v3) CoreDisplayPatch 3;; v4) CoreDisplayPatch 4;; v5) CoreDisplayPatch 5;; *) CoreDisplayPatch 0;; esac testCoreDisplayPatch exit elif [[ $1 == 'unpatch' ]] || [[ $1 == 'depatch' ]]; then if [[ ! -f "$CoreDisplayLocation.bak" ]]; then printf "There is no backup file, we cannot undo the patch. The patch might have not even been applied.\n" makeExit fi CoreDisplayUnpatch elif [[ $1 == 'test' ]] || [[ $1 == 'status' ]]; then test 'status' exit elif [[ $1 == 'md5' ]]; then CoreDisplayPrintAllMD5 exit elif [[ $1 == 'help' ]] || [[ $1 == '-h' ]] || [[ $1 == '--help' ]]; then help exit elif [[ -z $1 ]]; then test "patch" exit else printf "Option is not valid\n" printf "\n" help exit fi } # Run the script options $1 $2
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