cloud-email/cryptography - python cryptography

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author	Paul Kehrer <paul.l.kehrer@gmail.com>	2015-08-09 23:10:43 -0500
committer	Paul Kehrer <paul.l.kehrer@gmail.com>	2015-08-09 23:10:43 -0500
commit	7fef5348dc332b48e009b82efb35fe490bf06414 (patch)
tree	28a14701d02c71e7c14c96059deabfe61f9b7385 /src/_cffi_src/commoncrypto
parent	77f9caf69aea851631badebc6bbd098a468b1adf (diff)
download	cryptography-7fef5348dc332b48e009b82efb35fe490bf06414.tar.gz cryptography-7fef5348dc332b48e009b82efb35fe490bf06414.tar.bz2 cryptography-7fef5348dc332b48e009b82efb35fe490bf06414.zip

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#
# Copyright (C) 2011 OpenWrt.org
#

. /lib/functions/system.sh
. /lib/ar71xx.sh

PART_NAME=firmware
RAMFS_COPY_DATA='/lib/ar71xx.sh /etc/fw_env.config /var/lock/fw_printenv.lock'
RAMFS_COPY_BIN='nandwrite fw_printenv fw_setenv'

CI_BLKSZ=65536
CI_LDADR=0x80060000

PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=0

platform_find_partitions() {
	local first dev size erasesize name
	while read dev size erasesize name; do
		name=${name#'"'}; name=${name%'"'}
		case "$name" in
			vmlinux.bin.l7|vmlinux|kernel|linux|linux.bin|rootfs|filesystem)
				if [ -z "$first" ]; then
					first="$name"
				else
					echo "$erasesize:$first:$name"
					break
				fi
			;;
		esac
	done < /proc/mtd
}

platform_find_kernelpart() {
	local part
	for part in "${1%:*}" "${1#*:}"; do
		case "$part" in
			vmlinux.bin.l7|vmlinux|kernel|linux|linux.bin)
				echo "$part"
				break
			;;
		esac
	done
}

platform_find_rootfspart() {
	local part
	for part in "${1%:*}" "${1#*:}"; do
		[ "$part" != "$2" ] && echo "$part" && break
	done
}

platform_do_upgrade_combined() {
	local partitions=$(platform_find_partitions)
	local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
	local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
	local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
	local kern_blocks=$(($kern_length / $CI_BLKSZ))
	local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))

	if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
	   [ ${kern_blocks:-0} -gt 0 ] && \
	   [ ${root_blocks:-0} -gt 0 ] && \
	   [ ${erase_size:-0} -gt 0 ];
	then
		local rootfspart=$(platform_find_rootfspart "$partitions" "$kernelpart")
		local append=""
		[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"

		if [ "$PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD" -ne 1 ]; then
		    ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
		      dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \
			    mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions
		elif [ -n "$rootfspart" ]; then
		    dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | \
			    mtd write - $kernelpart
		    dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \
			    mtd -r $append write - $rootfspart
		fi
	fi
	PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD=0
}

tplink_get_image_hwid() {
	get_image "$@" | dd bs=4 count=1 skip=16 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}

tplink_get_image_mid() {
	get_image "$@" | dd bs=4 count=1 skip=17 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}

tplink_get_image_boot_size() {
	get_image "$@" | dd bs=4 count=1 skip=37 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}

tplink_pharos_check_support_list() {
	local image="$1"
	local offset="$2"
	local model="$3"
	local trargs="$4"

	# Here $image is given to dd directly instead of using get_image;
	# otherwise the skip will take almost a second (as dd can't seek)
	dd if="$image" bs=1 skip=$offset count=1024 2>/dev/null | tr -d "$trargs" | (
		while IFS= read -r line; do
			[ "$line" = "$model" ] && exit 0
		done

		exit 1
	)
}

tplink_pharos_check_image() {
	local image_magic="$(get_magic_long "$1")"
	local board_magic="$2"
	[ "$image_magic" != "$board_magic" ] && {
		echo "Invalid image magic '$image_magic'. Expected '$board_magic'."
		return 1
	}

	local model_string="$3"
	local trargs="$4"

	# New images have the support list at 7802888, old ones at 1511432
	tplink_pharos_check_support_list "$1" 7802888 "$model_string" "$trargs" || \
	tplink_pharos_check_support_list "$1" 1511432 "$model_string" "$trargs" || {
		echo "Unsupported image (model not in support-list)"
		return 1
	}

	return 0
}

seama_get_type_magic() {
	get_image "$@" | dd bs=1 count=4 skip=53 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}

wrgg_get_image_magic() {
	get_image "$@" | dd bs=4 count=1 skip=8 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}

cybertan_get_image_magic() {
	get_image "$@" | dd bs=8 count=1 skip=0  2>/dev/null | hexdump -v -n 8 -e '1/1 "%02x"'
}

cybertan_check_image() {
	local magic="$(cybertan_get_image_magic "$1")"
	local fw_magic="$(cybertan_get_hw_magic)"

	[ "$fw_magic" != "$magic" ] && {
		echo "Invalid image, ID mismatch, got:$magic, but need:$fw_magic"
		return 1
	}

	return 0
}

platform_do_upgrade_compex() {
	local fw_file=$1
	local fw_part=$PART_NAME
	local fw_mtd=$(find_mtd_part $fw_part)
	local fw_length=0x$(dd if="$fw_file" bs=2 skip=1 count=4 2>/dev/null)
	local fw_blocks=$(($fw_length / 65536))

	if [ -n "$fw_mtd" ] &&  [ ${fw_blocks:-0} -gt 0 ]; then
		local append=""
		[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"

		sync
		dd if="$fw_file" bs=64k skip=1 count=$fw_blocks 2>/dev/null | \
			mtd $append write - "$fw_part"
	fi
}

alfa_check_image() {
	local magic_long="$(get_magic_long "$1")"
	local fw_part_size=$(mtd_get_part_size firmware)

	case "$magic_long" in
	"27051956")
		[ "$fw_part_size" != "16318464" ] && {
			echo "Invalid image magic \"$magic_long\" for $fw_part_size bytes"
			return 1
		}
		;;
	"68737173")
		[ "$fw_part_size" != "7929856" ] && {
			echo "Invalid image magic \"$magic_long\" for $fw_part_size bytes"
			return 1
		}
		;;


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