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#!/bin/sh
grep \^CONFIG_TARGET_ .config | head -n3 > tmp/.diffconfig.head
grep \^CONFIG_TARGET_DEVICE_ .config >> tmp/.diffconfig.head
grep '^CONFIG_ALL=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_ALL_KMODS=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_ALL_NONSHARED=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_DEVEL=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_TOOLCHAINOPTS=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_BUSYBOX_CUSTOM=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_TARGET_PER_DEVICE_ROOTFS=y' .config >> tmp/.diffconfig.head
./scripts/config/conf --defconfig=tmp/.diffconfig.head -w tmp/.diffconfig.stage1 Config.in >/dev/null
./scripts/kconfig.pl '>+' tmp/.diffconfig.stage1 .config >> tmp/.diffconfig.head
./scripts/config/conf --defconfig=tmp/.diffconfig.head -w tmp/.diffconfig.stage2 Config.in >/dev/null
./scripts/kconfig.pl '>' tmp/.diffconfig.stage2 .config >> tmp/.diffconfig.head
cat tmp/.diffconfig.head
rm -f tmp/.diffconfig tmp/.diffconfig.head
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-26 22:16:41 +0000
or */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

import abc

import six

from cryptography import utils
from cryptography.exceptions import AlreadyFinalized
from cryptography.hazmat.bindings._padding import lib


@six.add_metaclass(abc.ABCMeta)
class PaddingContext(object):
    @abc.abstractmethod
    def update(self, data):
        """
        Pads the provided bytes and returns any available data as bytes.
        """

    @abc.abstractmethod
    def finalize(self):
        """
        Finalize the padding, returns bytes.
        """


def _byte_padding_check(block_size):
    if not (0 <= block_size <= 2040):
        raise ValueError("block_size must be in range(0, 2041).")

    if block_size % 8 != 0:
        raise ValueError("block_size must be a multiple of 8.")


def _byte_padding_update(buffer_, data, block_size):
    if buffer_ is None:
        raise AlreadyFinalized("Context was already finalized.")

    if not isinstance(data, bytes):
        raise TypeError("data must be bytes.")

    buffer_ += data

    finished_blocks = len(buffer_) // (block_size // 8)

    result = buffer_[:finished_blocks * (block_size // 8)]
    buffer_ = buffer_[finished_blocks * (block_size // 8):]

    return buffer_, result


def _byte_padding_pad(buffer_, block_size, paddingfn):
    if buffer_ is None:
        raise AlreadyFinalized("Context was already finalized.")

    pad_size = block_size // 8 - len(buffer_)
    return buffer_ + paddingfn(pad_size)


def _byte_unpadding_update(buffer_, data, block_size):
    if buffer_ is None:
        raise AlreadyFinalized("Context was already finalized.")

    if not isinstance(data, bytes):
        raise TypeError("data must be bytes.")

    buffer_ += data

    finished_blocks = max(len(buffer_) // (block_size // 8) - 1, 0)

    result = buffer_[:finished_blocks * (block_size // 8)]
    buffer_ = buffer_[finished_blocks * (block_size // 8):]

    return buffer_, result


def _byte_unpadding_check(buffer_, block_size, checkfn):
    if buffer_ is None:
        raise AlreadyFinalized("Context was already finalized.")

    if len(buffer_) != block_size // 8:
        raise ValueError("Invalid padding bytes.")

    valid = checkfn(buffer_, block_size // 8)

    if not valid:
        raise ValueError("Invalid padding bytes.")

    pad_size = six.indexbytes(buffer_, -1)
    return buffer_[:-pad_size]


class PKCS7(object):
    def __init__(self, block_size):
        _byte_padding_check(block_size)
        self.block_size = block_size

    def padder(self):
        return _PKCS7PaddingContext(self.block_size)

    def unpadder(self):
        return _PKCS7UnpaddingContext(self.block_size)


@utils.register_interface(PaddingContext)
class _PKCS7PaddingContext(object):
    def __init__(self, block_size):
        self.block_size = block_size
        # TODO: more copies than necessary, we should use zero-buffer (#193)
        self._buffer = b""

    def update(self, data):
        self._buffer, result = _byte_padding_update(
            self._buffer, data, self.block_size)
        return result

    def _padding(self, size):
        return six.int2byte(size) * size

    def finalize(self):
        result = _byte_padding_pad(
            self._buffer, self.block_size, self._padding)
        self._buffer = None
        return result


@utils.register_interface(PaddingContext)
class _PKCS7UnpaddingContext(object):
    def __init__(self, block_size):
        self.block_size = block_size
        # TODO: more copies than necessary, we should use zero-buffer (#193)
        self._buffer = b""

    def update(self, data):
        self._buffer, result = _byte_unpadding_update(
            self._buffer, data, self.block_size)
        return result

    def finalize(self):
        result = _byte_unpadding_check(
            self._buffer, self.block_size,
            lib.Cryptography_check_pkcs7_padding)
        self._buffer = None
        return result


class ANSIX923(object):
    def __init__(self, block_size):
        _byte_padding_check(block_size)
        self.block_size = block_size

    def padder(self):
        return _ANSIX923PaddingContext(self.block_size)

    def unpadder(self):
        return _ANSIX923UnpaddingContext(self.block_size)


@utils.register_interface(PaddingContext)
class _ANSIX923PaddingContext(object):
    def __init__(self, block_size):
        self.block_size = block_size
        # TODO: more copies than necessary, we should use zero-buffer (#193)
        self._buffer = b""

    def update(self, data):
        self._buffer, result = _byte_padding_update(
            self._buffer, data, self.block_size)
        return result

    def _padding(self, size):
        return six.int2byte(0) * (size - 1) + six.int2byte(size)

    def finalize(self):
        result = _byte_padding_pad(
            self._buffer, self.block_size, self._padding)
        self._buffer = None
        return result


@utils.register_interface(PaddingContext)
class _ANSIX923UnpaddingContext(object):
    def __init__(self, block_size):
        self.block_size = block_size
        # TODO: more copies than necessary, we should use zero-buffer (#193)
        self._buffer = b""

    def update(self, data):
        self._buffer, result = _byte_unpadding_update(
            self._buffer, data, self.block_size)
        return result

    def finalize(self):
        result = _byte_unpadding_check(
            self._buffer, self.block_size,
            lib.Cryptography_check_ansix923_padding)
        self._buffer = None
        return result
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-26 22:16:41 +0000