Custom IPSW restore option, optional Linux args

- add restore custom ipsw option for 3gs and touch 2. there is also a warning to proceed with caution when doing so since legacy ios kit will never add support for tethered boots, downgrades, and jailbreaks (everything in legacy ios kit has to be untethered)
- add optional arguments `--disable-sudoloop` and `--disable-usbmuxd` for linux. (i dont recommend enabling any of these since default behavior should work fine in most cases, maybe only `--disable-usbmuxd` will be useful in case, idk)
- by default, legacy ios kit stops the usbmuxd service and starts up `sudo usbmuxd -pz`. `--disable-usbmuxd` disables this
 - by default, legacy ios kit runs some tools as root like irecovery and idevicerestore among others. `--disable-sudoloop` disables this

restore.sh

@@ -34,7 +34,9 @@ clean() {
     rm -rf "$(dirname "$0")/tmp/"* "$(dirname "$0")/iP"*/ "$(dirname "$0")/tmp/"
     if [[ $device_sudoloop == 1 ]]; then
         sudo rm -rf /tmp/futurerestore /tmp/*.json "$(dirname "$0")/tmp/"* "$(dirname "$0")/iP"*/ "$(dirname "$0")/tmp/"
-        sudo systemctl restart usbmuxd
+        if [[ -z $device_disable_usbmuxd ]]; then
+            sudo systemctl restart usbmuxd
+        fi
     fi
 }
 
@@ -61,6 +63,8 @@ Usage: ./restore.sh [Options]
 List of options:
     --debug                   For script debugging (set -x and debug mode)
     --disable-bbupdate        Disable baseband update
+    --disable-sudoloop        Disable running tools as root for Linux
+    --disable-usbmuxd         Disable running usbmuxd as root for Linux
     --entry-device            Enable manual device and ECID entry
     --help                    Display this help message
     --no-color                Disable colors for script output
@@ -179,7 +183,9 @@ set_tool_paths() {
             fi
         fi
 
-        device_sudoloop=1 # Run some tools as root for device detection if set to 1. (for Linux)
+        if [[ -z $device_disable_sudoloop ]]; then
+            device_sudoloop=1 # Run some tools as root for device detection if set to 1. (for Linux)
+        fi
         # sudoloop check
         if [[ $(uname -m) == "x86_64" && -e ../resources/sudoloop && $device_sudoloop != 1 ]]; then
             local opt
@@ -205,9 +211,11 @@ set_tool_paths() {
             irecovery="sudo "
             irecovery2="sudo "
             sudo chmod +x $dir/*
-            sudo systemctl stop usbmuxd
-            sudo usbmuxd -pz
-            usbmuxd_pid=$!
+            if [[ -z $device_disable_usbmuxd ]]; then
+                sudo systemctl stop usbmuxd
+                sudo usbmuxd -pz
+                usbmuxd_pid=$!
+            fi
         fi
 
     elif [[ $OSTYPE == "darwin"* ]]; then
@@ -2294,8 +2302,9 @@ restore_idevicerestore() {
         print "* Windows users may encounter errors like \"Unable to send APTicket\" or \"Unable to send iBEC\" in the restore process."
         print "* Follow the troubleshoting link for steps to attempt fixing this issue."
         print "* Troubleshooting link: https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Troubleshooting#windows"
-    elif [[ $platform == "linux" && $device_target_vers == "4"* ]]; then
-        print "* For device activation on Linux, go to: Other Utilities -> Attempt Activation"
+    fi
+    if [[ $device_target_vers == "4"* ]]; then
+        print "* For device activation, go to: Other Utilities -> Attempt Activation"
     fi
     print "* Please read the \"Troubleshooting\" wiki page in GitHub before opening any issue!"
     print "* Your problem may have already been addressed within the wiki page."
@@ -2390,8 +2399,8 @@ restore_latest() {
         print "* Your problem may have already been addressed within the wiki page."
         print "* If opening an issue in GitHub, please provide a FULL log/output. Otherwise, your issue may be dismissed."
     fi
-    if [[ $platform == "linux" && $device_target_vers == "4"* ]]; then
-        print "* For device activation on Linux, go to: Other Utilities -> Attempt Activation"
+    if [[ $device_target_vers == "4"* ]]; then
+        print "* For device activation, go to: Other Utilities -> Attempt Activation"
     fi
 }
 
@@ -2475,7 +2484,7 @@ restore_prepare() {
                     print "* Go to: Other Utilities -> Install alloc8 Exploit"
                 fi
                 if [[ $device_target_vers == "3"* ]]; then
-                    print "* For device activation on Linux, go to: Other Utilities -> Attempt Activation"
+                    print "* For device activation, go to: Other Utilities -> Attempt Activation"
                 fi
             fi
         ;;
@@ -3149,6 +3158,9 @@ menu_restore() {
                 menu_items+=("iPhoneOS 3.1.3")
             ;;
         esac
+        case $device_type in
+            iPhone2,1 | iPod2,1 ) menu_items+=("Other (Custom IPSW)");;
+        esac
         menu_items+=("Latest iOS ($device_latest_vers)" "Other (use SHSH blobs)" "Go Back")
         menu_print_info
         if [[ $1 == "ipsw" ]]; then
@@ -3164,6 +3176,7 @@ menu_restore() {
         case $selected in
             "" ) :;;
             "Go Back" ) back=1;;
+            "Other (Custom IPSW)" ) mode="customipsw";;
             * ) menu_ipsw "$selected" "$1";;
         esac
     done
@@ -3478,9 +3491,11 @@ menu_ipsw_browse() {
         pause
         return
     fi
-    ipsw_verify "$newpath" "$device_target_build"
-    if [[ -n $versionc && $? != 0 ]]; then
-        return
+    if [[ $1 != "custom" ]]; then
+        ipsw_verify "$newpath" "$device_target_build"
+        if [[ -n $versionc && $? != 0 ]]; then
+            return
+        fi
     fi
     ipsw_path="$newpath"
 }
@@ -3623,6 +3638,31 @@ device_dumpbaseband() {
     log "Dumping baseband done: $baseband"
 }
 
+restore_customipsw() {
+    print "* You are about to restore with a custom IPSW."
+    print "* Note that this might only work on old bootrom devices."
+    print "* Also note that Legacy iOS Kit does not support tethered booting."
+    print "* Legacy iOS Kit will not support tethered boots, downgrades, and jailbreaks."
+    print "* Proceed with caution when restoring to custom IPSWs not made with Legacy iOS Kit."
+    if [[ $device_newbr == 1 ]]; then
+        warn "Your device is a new bootrom model and custom IPSWs might not be compatible."
+        print "* For iPhone 3GS, after restoring you will need to go to Other Utilities -> Install alloc8 Exploit"
+    fi
+    pause
+    menu_ipsw_browse custom
+    if [[ -z $ipsw_path ]]; then
+        error "No IPSW selected, cannot continue."
+    fi
+    device_enter_mode pwnDFU
+    ipsw_extract
+    log "Running idevicerestore with command: $idevicerestore -ce \"$ipsw_path.ipsw\""
+    $idevicerestore -ce "$ipsw_path.ipsw"
+    log "Restoring done!"
+    if [[ $device_target_vers == "4"* ]]; then
+        print "* For device activation, go to: Other Utilities -> Attempt Activation"
+    fi
+}
+
 main() {
     clear
     print " *** Legacy iOS Kit ***"
@@ -3689,6 +3729,7 @@ main() {
             "alloc8" ) device_alloc8;;
             "jailbreak" ) device_jailbreakrd;;
             "baseband" ) device_dumpbaseband;;
+            "customipsw" ) restore_customipsw;;
             * ) :;;
         esac
 
@@ -3713,6 +3754,8 @@ for i in "$@"; do
         "--jailbreak" ) ipsw_jailbreak=1;;
         "--memory" ) ipsw_memory=1;;
         "--disable-bbupdate" ) de_bbupdate=1; device_disable_bbupdate=1;;
+        "--disable-sudoloop" ) device_disable_sudoloop=1;;
+        "--disable-usbmuxd" ) device_disable_usbmuxd=1;;
     esac
 done