#!/bin/sh

# Detects all Microsoft OSes on a collection of partitions.

. /usr/share/os-prober/common.sh

partition="$1"

mpoint="$2"

type="$3"

# This file is for UEFI platform only

if [ ! -d /sys/firmware/efi ] || [ -f /var/lib/partman/ignore_uefi ]; then

	debug "Not on UEFI platform"

	exit 1

fi

# Weed out stuff that doesn't apply to us

case "$type" in

	vfat) debug "$1 is a FAT32 partition" ;;

	msdos) debug "$1 is a FAT16 partition" ;;

	fat) debug "$1 is a FAT partition (mounted by GRUB)" ;;

	*) debug "$1 is $type partition: exiting"; exit 1 ;;

esac

if type udevadm > /dev/null 2>&1; then

	udevinfo () {

		udevadm info "$@"

	}

fi

if type udevinfo > /dev/null 2>&1; then

	# Skip virtual devices

	if udevinfo -q path -n $partition | grep -q /virtual/; then

		debug "$1 is virtual device: exiting"

		exit 1

	fi

	eval "$(udevinfo -q property -n "$partition" | grep -E '^ID_PART_ENTRY_(TYPE|SCHEME)=')"

	debug "$partition partition scheme is $ID_PART_ENTRY_SCHEME"

	debug "$partition partition type is $ID_PART_ENTRY_TYPE"

	if [ -z "$ID_PART_ENTRY_TYPE" -o -z "$ID_PART_ENTRY_SCHEME" -o \

		\( "$ID_PART_ENTRY_SCHEME" != gpt -a "$ID_PART_ENTRY_SCHEME" != msdos \) -o \

		\( "$ID_PART_ENTRY_SCHEME" = gpt -a "$ID_PART_ENTRY_TYPE" != c12a7328-f81f-11d2-ba4b-00a0c93ec93b \) -o \

		\( "$ID_PART_ENTRY_SCHEME" = msdos -a "$ID_PART_ENTRY_TYPE" != 0xef \) ]; then

		debug "$partition is not a ESP partition: exiting"

		exit 1

	fi

else

	debug "udevinfo and udevadm missing - cannot check partition type"

fi

efi=$(item_in_dir efi "$mpoint")

if [ -z "$efi" ]; then

	debug "$mpoint does not have /EFI directory: exiting"

	exit 1

fi

ret=1

for test in /usr/libexec/os-probes/mounted/efi/*; do

	debug "running subtest $test"

	if [ -f "$test" ] && [ -x "$test" ]; then

		# we need results of subtest in stdout

		orig_fd_res=$fd_result

		export fd_result=1

		entry=$("$test" "$mpoint/$efi")

		export fd_result=$orig_fd_res

		if [ -n "$entry" ]; then

			debug "bootloader $entry found by subtest $test"

			ret=0

			result "${partition}@/$efi/${entry}:efi"

		fi

	fi

done

exit $ret