From 5e6a75585366e1d0a375f83a3e215b8d0e948cde Mon Sep 17 00:00:00 2001
From: Nebula <me@itsnebula.net>
Date: Wed, 9 Nov 2022 09:21:49 -0500
Subject: [PATCH] add kernelcache back

---
 palera1n.sh | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/palera1n.sh b/palera1n.sh
index 949aaa6..1b79483 100755
--- a/palera1n.sh
+++ b/palera1n.sh
@@ -417,6 +417,78 @@ if [ ! -f blobs/"$deviceid"-"$version".shsh2 ]; then
         if [[ ! "$@" == *"--semi-tethered"* ]]; then
             "$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "/usr/sbin/nvram auto-boot=false"
         fi
+        
+        cd work
+        echo "[*] Downloading BuildManifest"
+        ipswurl=$(_beta_url)
+        "$dir"/pzb -g AssetData/boot/BuildManifest.plist "$ipswurl"
+
+        echo "[*] Getting apticket.der from device"
+        has_active=$("$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "ls /mnt6/active" 2> /dev/null)
+        if [ ! "$has_active" = "/mnt6/active" ]; then
+            echo "[!] Active file does not exist! Please use SSH to create it"
+            echo "    /mnt6/active should contain the name of the UUID in /mnt6"
+            echo "    When done, type reboot in the SSH session, then rerun the script"
+            echo "    ssh root@localhost -p 2222"
+            exit
+        fi
+        active=$("$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "cat /mnt6/active" 2> /dev/null)
+        "$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "cat /mnt6/$active/System/Library/Caches/apticket.der" > apticket.der
+
+        echo "[*] Downloading kernelcache"
+        "$dir"/pzb -g AssetData/boot/"$(awk "/""$cpid""/{x=1}x&&/kernelcache.release/{print;exit}" BuildManifest.plist | grep '<string>' | cut -d\> -f2 | cut -d\< -f1 | sed 's/release/development/')" "$ipswurl"
+
+        echo "[*] Patching kernelcache"
+        cd ..
+        modelwithoutap=$(echo "$model" | sed 's/ap//')
+        bpatchfile=$(find ../patches -name "$modelwithoutap".bpatch)
+        "$dir"/img4 -i work/kernelcache.development.* -o work/kernelcache -M work/apticket.der -T rkrn -P "$bpatchfile" `if [ "$os" = 'Linux' ]; then echo "-J"; fi`
+
+        echo "[*] Placing patched kernelcache"
+        cat work/kernelcache | "$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "cat > /mnt6/$active/System/Library/Caches/com.apple.kernelcaches/kernelcachd"
+
+        rm -rf work
+        mkdir work
+    else
+        cd work
+        echo "[*] Downloading BuildManifest"
+        "$dir"/pzb -g BuildManifest.plist "$ipswurl"
+
+        echo "[*] Getting apticket.der from device"
+        has_active=$("$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "ls /mnt6/active" 2> /dev/null)
+        if [ ! "$has_active" = "/mnt6/active" ]; then
+            echo "[!] Active file does not exist! Please use SSH to create it"
+            echo "    /mnt6/active should contain the name of the UUID in /mnt6"
+            echo "    When done, type reboot in the SSH session, then rerun the script"
+            echo "    ssh root@localhost -p 2222"
+            exit
+        fi
+        active=$("$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "cat /mnt6/active" 2> /dev/null)
+        "$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "cat /mnt6/$active/System/Library/Caches/apticket.der" > apticket.der
+
+        echo "[*] Downloading kernelcache"
+        "$dir"/pzb -g "$(awk "/""$cpid""/{x=1}x&&/kernelcache.release/{print;exit}" BuildManifest.plist | grep '<string>' | cut -d\> -f2 | cut -d\< -f1)" "$ipswurl"
+        
+        echo "[*] Patching kernelcache"
+        cd ..
+        if [[ "$deviceid" == "iPhone8"* ]] || [[ "$deviceid" == "iPad6"* ]] then
+            python3 -m pyimg4 im4p extract -i work/"$(awk "/""$model""/{x=1}x&&/kernelcache.release/{print;exit}" work/BuildManifest.plist | grep '<string>' | cut -d\> -f2 | cut -d\< -f1)" -o work/kcache.raw --extra work/kpp.bin
+        else
+            python3 -m pyimg4 im4p extract -i work/"$(awk "/""$model""/{x=1}x&&/kernelcache.release/{print;exit}" work/BuildManifest.plist | grep '<string>' | cut -d\> -f2 | cut -d\< -f1)" -o work/kcache.raw
+        fi
+        "$dir"/Kernel64Patcher work/kcache.raw work/kcache.patched -a -o
+        if [[ "$deviceid" == *'iPhone8'* ]] || [[ "$deviceid" == *'iPad6'* ]] && [[ ! $1 == *"--tweaks"* ]]; then
+            python3 -m pyimg4 im4p create -i work/kcache.patched -o work/kcache.im4p --extra work/kpp.bin -f rkrn --lzss
+        elif [[ ! $1 == *"--tweaks"* ]]; then
+            python3 -m pyimg4 im4p create -i work/kcache.patched -o work/kcache.im4p -f rkrn --lzss
+        fi
+        "$dir"/img4 -i work/kcache.im4p -o work/kernelcache -M work/apticket.der -T rkrn `if [ "$os" = 'Linux' ]; then echo "-J"; fi`
+
+        echo "[*] Placing patched kernelcache"
+        cat work/kernelcache | "$dir"/sshpass -p 'alpine' ssh -o StrictHostKeyChecking=no -p2222 root@localhost "cat > /mnt6/$active/System/Library/Caches/com.apple.kernelcaches/kernelcachd"
+
+        rm -rf work
+        mkdir work
     fi
 
     sleep 2