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authorRoberto Sassu <roberto.sassu@huawei.com>2021-05-14 17:27:50 +0200
committerMimi Zohar <zohar@linux.ibm.com>2021-06-01 18:30:51 +0200
commit1434c6a1d32a3a1a77f58a03197b802b1724c740 (patch)
tree4e4efa5559777a540a9b768c818a87af424947af /Documentation/ABI/testing/evm
parentevm: Allow setxattr() and setattr() for unmodified metadata (diff)
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linux-1434c6a1d32a3a1a77f58a03197b802b1724c740.zip
evm: Deprecate EVM_ALLOW_METADATA_WRITES
This patch deprecates the usage of EVM_ALLOW_METADATA_WRITES, as it is no longer necessary. All the issues that prevent the usage of EVM portable signatures just with a public key loaded have been solved. This flag will remain available for a short time to ensure that users are able to use EVM without it. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'Documentation/ABI/testing/evm')
-rw-r--r--Documentation/ABI/testing/evm10
1 files changed, 8 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/evm b/Documentation/ABI/testing/evm
index 2243b72e4110..553fd8a33e56 100644
--- a/Documentation/ABI/testing/evm
+++ b/Documentation/ABI/testing/evm
@@ -24,7 +24,7 @@ Description:
1 Enable digital signature validation
2 Permit modification of EVM-protected metadata at
runtime. Not supported if HMAC validation and
- creation is enabled.
+ creation is enabled (deprecated).
31 Disable further runtime modification of EVM policy
=== ==================================================
@@ -47,7 +47,13 @@ Description:
will enable digital signature validation, permit
modification of EVM-protected metadata and
- disable all further modification of policy
+ disable all further modification of policy. This option is now
+ deprecated in favor of::
+
+ echo 0x80000002 ><securityfs>/evm
+
+ as the outstanding issues that prevent the usage of EVM portable
+ signatures have been solved.
Echoing a value is additive, the new value is added to the
existing initialization flags.