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authorNayna Jain <nayna@linux.ibm.com>2019-10-30 23:31:31 -0400
committerMichael Ellerman <mpe@ellerman.id.au>2019-11-12 12:25:50 +1100
commit2434f7d2d488c3301ae81f1031e1c66c6f076fb7 (patch)
treeaa7a3fe1afeffd5f6c08cb78228a82d1da56e018 /certs/blacklist.c
parente14555e3d0e9edfad0a6840c0152f71aba97e793 (diff)
certs: Add wrapper function to check blacklisted binary hash
The -EKEYREJECTED error returned by existing is_hash_blacklisted() is misleading when called for checking against blacklisted hash of a binary. This patch adds a wrapper function is_binary_blacklisted() to return -EPERM error if binary is blacklisted. Signed-off-by: Nayna Jain <nayna@linux.ibm.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1572492694-6520-7-git-send-email-zohar@linux.ibm.com
Diffstat (limited to 'certs/blacklist.c')
-rw-r--r--certs/blacklist.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/certs/blacklist.c b/certs/blacklist.c
index ec00bf337eb6..6514f9ebc943 100644
--- a/certs/blacklist.c
+++ b/certs/blacklist.c
@@ -135,6 +135,15 @@ int is_hash_blacklisted(const u8 *hash, size_t hash_len, const char *type)
}
EXPORT_SYMBOL_GPL(is_hash_blacklisted);
+int is_binary_blacklisted(const u8 *hash, size_t hash_len)
+{
+ if (is_hash_blacklisted(hash, hash_len, "bin") == -EKEYREJECTED)
+ return -EPERM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(is_binary_blacklisted);
+
/*
* Initialise the blacklist
*/

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