[PATCH RFC 5/8] keys: Add new verification type (VERIFYING_CLAVIS_SIGNATURE)

Eric Snowberg
2024-03-11T16:19:48Z

Add a new verification type called VERIFYING_CLAVIS_SIGNATURE. This new
usage will be used for validating keys added to the new clavis lsm keyring.
This will be introduced in a follow-on patch.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
---
crypto/asymmetric_keys/asymmetric_type.c | 1 +
crypto/asymmetric_keys/pkcs7_verify.c | 1 +
include/linux/verification.h | 1 +
3 files changed, 3 insertions(+)

diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c
index a5da8ccd353e..7fdc006f18d6 100644
--- a/crypto/asymmetric_keys/asymmetric_type.c
+++ b/crypto/asymmetric_keys/asymmetric_type.c
@@ -25,6 +25,7 @@ const char *const key_being_used_for[NR__KEY_BEING_USED_FOR] = {
[VERIFYING_KEY_SIGNATURE] = "key sig",
[VERIFYING_KEY_SELF_SIGNATURE] = "key self sig",
[VERIFYING_UNSPECIFIED_SIGNATURE] = "unspec sig",
+ [VERIFYING_CLAVIS_SIGNATURE] = "clavis sig",
};
EXPORT_SYMBOL_GPL(key_being_used_for);

diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index f0d4ff3c20a8..1dc80e68ce96 100644
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -428,6 +428,7 @@ int pkcs7_verify(struct pkcs7_message *pkcs7,
}
/* Authattr presence checked in parser */
break;
+ case VERIFYING_CLAVIS_SIGNATURE:
case VERIFYING_UNSPECIFIED_SIGNATURE:
if (pkcs7->data_type != OID_data) {
pr_warn("Invalid unspecified sig (not pkcs7-data)\n");
diff --git a/include/linux/verification.h b/include/linux/verification.h
index cb2d47f28091..970f748b5cc9 100644
--- a/include/linux/verification.h
+++ b/include/linux/verification.h
@@ -36,6 +36,7 @@ enum key_being_used_for {
VERIFYING_KEY_SIGNATURE,
VERIFYING_KEY_SELF_SIGNATURE,
VERIFYING_UNSPECIFIED_SIGNATURE,
+ VERIFYING_CLAVIS_SIGNATURE,
NR__KEY_BEING_USED_FOR
};
extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];
--
2.39.3