alistair23-linux/security/apparmor/Kconfig
Linus Torvalds 79e178a57d + Features
- increase left match history buffer size to provide inproved conflict
     resolution in overlapping execution rules.
   - switch buffer allocation to use a memory pool and GFP_KERNEL
     where possible.
   - add compression of policy blobs to reduce memory usage.
 + Cleanups
   - fix spelling mistake "immutible" -> "immutable"
 + Bug fixes
   - fix unsigned len comparison in update_for_len macro
   - fix sparse warning for type-casting of current->real_cred
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Merge tag 'apparmor-pr-2019-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor

Pull apparmor updates from John Johansen:
 "Features:

   - increase left match history buffer size to provide improved
     conflict resolution in overlapping execution rules.

   - switch buffer allocation to use a memory pool and GFP_KERNEL where
     possible.

   - add compression of policy blobs to reduce memory usage.

  Cleanups:

   - fix spelling mistake "immutible" -> "immutable"

  Bug fixes:

   - fix unsigned len comparison in update_for_len macro

   - fix sparse warning for type-casting of current->real_cred"

* tag 'apparmor-pr-2019-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
  apparmor: make it so work buffers can be allocated from atomic context
  apparmor: reduce rcu_read_lock scope for aa_file_perm mediation
  apparmor: fix wrong buffer allocation in aa_new_mount
  apparmor: fix unsigned len comparison with less than zero
  apparmor: increase left match history buffer size
  apparmor: Switch to GFP_KERNEL where possible
  apparmor: Use a memory pool instead per-CPU caches
  apparmor: Force type-casting of current->real_cred
  apparmor: fix spelling mistake "immutible" -> "immutable"
  apparmor: fix blob compression when ns is forced on a policy load
  apparmor: fix missing ZLIB defines
  apparmor: fix blob compression build failure on ppc
  apparmor: Initial implementation of raw policy blob compression
2019-12-03 12:51:35 -08:00

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# SPDX-License-Identifier: GPL-2.0-only
config SECURITY_APPARMOR
bool "AppArmor support"
depends on SECURITY && NET
select AUDIT
select SECURITY_PATH
select SECURITYFS
select SECURITY_NETWORK
select ZLIB_INFLATE
select ZLIB_DEFLATE
default n
help
This enables the AppArmor security module.
Required userspace tools (if they are not included in your
distribution) and further information may be found at
http://apparmor.wiki.kernel.org
If you are unsure how to answer this question, answer N.
config SECURITY_APPARMOR_HASH
bool "Enable introspection of sha1 hashes for loaded profiles"
depends on SECURITY_APPARMOR
select CRYPTO
select CRYPTO_SHA1
default y
help
This option selects whether introspection of loaded policy
is available to userspace via the apparmor filesystem.
config SECURITY_APPARMOR_HASH_DEFAULT
bool "Enable policy hash introspection by default"
depends on SECURITY_APPARMOR_HASH
default y
help
This option selects whether sha1 hashing of loaded policy
is enabled by default. The generation of sha1 hashes for
loaded policy provide system administrators a quick way
to verify that policy in the kernel matches what is expected,
however it can slow down policy load on some devices. In
these cases policy hashing can be disabled by default and
enabled only if needed.
config SECURITY_APPARMOR_DEBUG
bool "Build AppArmor with debug code"
depends on SECURITY_APPARMOR
default n
help
Build apparmor with debugging logic in apparmor. Not all
debugging logic will necessarily be enabled. A submenu will
provide fine grained control of the debug options that are
available.
config SECURITY_APPARMOR_DEBUG_ASSERTS
bool "Build AppArmor with debugging asserts"
depends on SECURITY_APPARMOR_DEBUG
default y
help
Enable code assertions made with AA_BUG. These are primarily
function entry preconditions but also exist at other key
points. If the assert is triggered it will trigger a WARN
message.
config SECURITY_APPARMOR_DEBUG_MESSAGES
bool "Debug messages enabled by default"
depends on SECURITY_APPARMOR_DEBUG
default n
help
Set the default value of the apparmor.debug kernel parameter.
When enabled, various debug messages will be logged to
the kernel message buffer.