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![Mike Salvatore](/assets/img/avatar_default.png)
Add KUnit tests to test AppArmor unpacking of userspace policies. AppArmor uses a serialized binary format for loading policies. To find policy format documentation see Documentation/admin-guide/LSM/apparmor.rst. In order to write the tests against the policy unpacking code, some static functions needed to be exposed for testing purposes. One of the goals of this patch is to establish a pattern for which testing these kinds of functions should be done in the future. Signed-off-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Mike Salvatore <mike.salvatore@canonical.com> Acked-by: John Johansen <john.johansen@canonical.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
86 lines
2.8 KiB
Text
86 lines
2.8 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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config SECURITY_APPARMOR
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bool "AppArmor support"
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depends on SECURITY && NET
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select AUDIT
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select SECURITY_PATH
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select SECURITYFS
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select SECURITY_NETWORK
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select ZLIB_INFLATE
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select ZLIB_DEFLATE
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default n
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help
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This enables the AppArmor security module.
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Required userspace tools (if they are not included in your
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distribution) and further information may be found at
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http://apparmor.wiki.kernel.org
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If you are unsure how to answer this question, answer N.
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config SECURITY_APPARMOR_HASH
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bool "Enable introspection of sha1 hashes for loaded profiles"
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depends on SECURITY_APPARMOR
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select CRYPTO
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select CRYPTO_SHA1
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default y
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help
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This option selects whether introspection of loaded policy
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is available to userspace via the apparmor filesystem.
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config SECURITY_APPARMOR_HASH_DEFAULT
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bool "Enable policy hash introspection by default"
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depends on SECURITY_APPARMOR_HASH
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default y
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help
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This option selects whether sha1 hashing of loaded policy
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is enabled by default. The generation of sha1 hashes for
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loaded policy provide system administrators a quick way
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to verify that policy in the kernel matches what is expected,
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however it can slow down policy load on some devices. In
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these cases policy hashing can be disabled by default and
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enabled only if needed.
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config SECURITY_APPARMOR_DEBUG
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bool "Build AppArmor with debug code"
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depends on SECURITY_APPARMOR
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default n
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help
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Build apparmor with debugging logic in apparmor. Not all
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debugging logic will necessarily be enabled. A submenu will
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provide fine grained control of the debug options that are
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available.
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config SECURITY_APPARMOR_DEBUG_ASSERTS
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bool "Build AppArmor with debugging asserts"
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depends on SECURITY_APPARMOR_DEBUG
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default y
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help
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Enable code assertions made with AA_BUG. These are primarily
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function entry preconditions but also exist at other key
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points. If the assert is triggered it will trigger a WARN
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message.
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config SECURITY_APPARMOR_DEBUG_MESSAGES
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bool "Debug messages enabled by default"
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depends on SECURITY_APPARMOR_DEBUG
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default n
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help
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Set the default value of the apparmor.debug kernel parameter.
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When enabled, various debug messages will be logged to
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the kernel message buffer.
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config SECURITY_APPARMOR_KUNIT_TEST
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bool "Build KUnit tests for policy_unpack.c"
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depends on KUNIT && SECURITY_APPARMOR
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help
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This builds the AppArmor KUnit tests.
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KUnit tests run during boot and output the results to the debug log
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in TAP format (http://testanything.org/). Only useful for kernel devs
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running KUnit test harness and are not for inclusion into a
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production build.
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For more information on KUnit and unit tests in general please refer
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to the KUnit documentation in Documentation/dev-tools/kunit/.
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If unsure, say N.
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