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Message-Id: <20191023001818.3684-2-nramas@linux.microsoft.com>
Date: Tue, 22 Oct 2019 17:18:13 -0700
From: Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
To: zohar@...ux.ibm.com, dhowells@...hat.com, casey@...aufler-ca.com,
sashal@...nel.org, jamorris@...ux.microsoft.com,
linux-security-module@...r.kernel.org,
linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
keyrings@...r.kernel.org
Cc: nramas@...ux.microsoft.com
Subject: [PATCH v1 1/6] KEYS: Helper function to check if the given keyring is builtin_trusted_keys
Helper function to check if the given keyring is
the builtin_trusted_keys keyring.
This function is used by ima to determine if a key is
added to the builtin_trusted_keys keyring.
Signed-off-by: Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
---
certs/system_keyring.c | 5 +++++
include/keys/system_keyring.h | 2 ++
2 files changed, 7 insertions(+)
diff --git a/certs/system_keyring.c b/certs/system_keyring.c
index 1eba08a1af82..5533c7f92fef 100644
--- a/certs/system_keyring.c
+++ b/certs/system_keyring.c
@@ -283,3 +283,8 @@ void __init set_platform_trusted_keys(struct key *keyring)
platform_trusted_keys = keyring;
}
#endif
+
+inline bool is_builtin_trusted_keyring(struct key *keyring)
+{
+ return (keyring == builtin_trusted_keys);
+}
diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
index c1a96fdf598b..2bc0aaa07f05 100644
--- a/include/keys/system_keyring.h
+++ b/include/keys/system_keyring.h
@@ -66,4 +66,6 @@ static inline void set_platform_trusted_keys(struct key *keyring)
}
#endif
+extern bool is_builtin_trusted_keyring(struct key *keyring);
+
#endif /* _KEYS_SYSTEM_KEYRING_H */
--
2.17.1
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