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oem-factory-reset : Prompt user for any connected block device, give storage size and loop until none is connected to exit loop.

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Warn user if connected usb block device is less then 128mb, since creating LUKS container of less then 8mb might cause issues.

Signed-off-by: Thierry Laurion <insurgo@riseup.net>
This commit is contained in:
Thierry Laurion 2023-11-09 17:01:35 -05:00
parent 23c967f26d
commit e924a8afca
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GPG Key ID: E7B4A71658E36A93
1 changed files with 50 additions and 13 deletions
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63
initrd/bin/oem-factory-reset
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@ -326,12 +326,6 @@ prompt_insert_to_be_wiped_thumb_drive() {
die "Error displaying warning about having only desired to be wiped thumb drive inserted"
}
#list blkid devices (removing partition numbers)
list_blkid_devices() {
TRACE "Under oem-factory-reset:list_blkid_devices"
blkid | cut -d: -f1 | sed 's/[0-9]$//'
}
#export master key and subkeys to thumbdrive's private LUKS contained partition
export_master_key_subkeys_and_revocation_key_to_private_LUKS_container() {
TRACE "Under oem-factory-reset:export_master_key_subkeys_and_revocation_key_to_private_LUKS_container"
@ -422,16 +416,59 @@ export_public_key_to_thumbdrive_public_partition() {
wipe_thumb_drive_and_copy_gpg_key_material() {
TRACE "Under oem-factory-reset:wipe_thumb_drive_and_copy_gpg_key_material"
prompt_disconnect_external_USB_storage_device
actual_devices=$(list_blkid_devices)
#enable usb storage
enable_usb
enable_usb_storage
prompt_insert_to_be_wiped_thumb_drive
new_devices=$(list_blkid_devices)
thumb_drive=$(echo "$new_devices" | grep -v "$actual_devices" | uniq)
if [ -z "$thumb_drive" ]; then
whiptail_error_die "No new thumb drive detected! Aborting."
fi
#loop until user chooses a disk
thumb_drive=""
while [ -z "$thumb_drive" ]; do
prompt_insert_to_be_wiped_thumb_drive
#list usb storage devices
list_usb_storage disks >/tmp/usb_disk_list
if [ $(cat /tmp/usb_disk_list | wc -l) -gt 0 ]; then
file_selector "/tmp/usb_disk_list" "Select USB device to partition"
if [ "$FILE" == "" ]; then
#No USB storage device selected
warn "No USB storage device selected!"
else
# Obtain size of thumb drive to be wiped with fdisk
disk_size_bytes="$(blockdev --getsize64 "$FILE")"
#Convert disk size to GB
thumb_drive_size_mb=$((disk_size_bytes / 1024 / 1024))
thumb_drive_size_gb=$((thumb_drive_size_mb / 1024 ))
#if thumb_drive_size_gb is 0, then disk size is less than 1GB
thumb_drive_size_message=""
if [ "$thumb_drive_size_gb" -eq 0 ]; then
thumb_drive_size_message="$thumb_drive_size_mb MB"
if [ "$thumb_drive_size_mb" -lt 128 ]; then
warn "Thumb drive size is less than 128MB!"
warn "LUKS container needs to be at least 8mb!"
warn "If the next operation fails, try with a bigger thumb drive"
fi
else
thumb_drive_size_message="$thumb_drive_size_gb GB"
fi
# confirm with user size of thumb drive to be wiped
whiptail --title "Confirm thumb drive to be wiped" --yesno "Are you sure you want to wipe the following thumb drive?\n\n$FILE\n\nSize: $thumb_drive_size_message" 0 0
if [ $? -ne 0 ]; then
warn "Thumb drive wipe aborted by user!"
continue
fi
#User chose and confirmed a thumb drive and its size to be wiped
thumb_drive=$FILE
fi
else
#No USB storage device detected
warn "No USB storage device detected! Aborting OEM Factory Reset / Re-Ownership"
sleep 3
die "No USB storage device detected! User decided to not wipe any thumb drive"
fi
done
select_luks_container_size_percent
#Wipe thumb drive with a LUKS container of size $(cat /tmp/luks_container_size_percent)
prepare_thumb_drive --device "$thumb_drive" --percentage "$(cat /tmp/luks_container_size_percent)" --pass "${ADMIN_PIN}"