Merge tag 'tpmdd-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:

 - Restrict linking of keys to .ima and .evm keyrings based on
   digitalSignature attribute in the certificate

 - PowerVM: load machine owner keys into the .machine [1] keyring

 - PowerVM: load module signing keys into the secondary trusted keyring
   (keys blessed by the vendor)

 - tpm_tis_spi: half-duplex transfer mode

 - tpm_tis: retry corrupted transfers

 - Apply revocation list (.mokx) to an all system keyrings (e.g.
   .machine keyring)

Link: https://blogs.oracle.com/linux/post/the-machine-keyring [1]

* tag 'tpmdd-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  certs: Reference revocation list for all keyrings
  tpm/tpm_tis_synquacer: Use module_platform_driver macro to simplify the code
  tpm: remove redundant variable len
  tpm_tis: Resend command to recover from data transfer errors
  tpm_tis: Use responseRetry to recover from data transfer errors
  tpm_tis: Move CRC check to generic send routine
  tpm_tis_spi: Add hardware wait polling
  KEYS: Replace all non-returning strlcpy with strscpy
  integrity: PowerVM support for loading third party code signing keys
  integrity: PowerVM machine keyring enablement
  integrity: check whether imputed trust is enabled
  integrity: remove global variable from machine_keyring.c
  integrity: ignore keys failing CA restrictions on non-UEFI platform
  integrity: PowerVM support for loading CA keys on machine keyring
  integrity: Enforce digitalSignature usage in the ima and evm keyrings
  KEYS: DigitalSignature link restriction
  tpm_tis: Revert "tpm_tis: Disable interrupts on ThinkPad T490s"

2 files changed, 26 insertions, 0 deletions

diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index 8fadd561c50e..462f8a34cdf8 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -78,6 +78,10 @@ extern int restrict_link_by_ca(struct key *dest_keyring,
 			       const struct key_type *type,
 			       const union key_payload *payload,
 			       struct key *trust_keyring);
+int restrict_link_by_digsig(struct key *dest_keyring,
+			    const struct key_type *type,
+			    const union key_payload *payload,
+			    struct key *trust_keyring);
 #else
 static inline int restrict_link_by_ca(struct key *dest_keyring,
 				      const struct key_type *type,
@@ -86,6 +90,14 @@ static inline int restrict_link_by_ca(struct key *dest_keyring,
 {
 	return 0;
 }
+
+static inline int restrict_link_by_digsig(struct key *dest_keyring,
+					  const struct key_type *type,
+					  const union key_payload *payload,
+					  struct key *trust_keyring)
+{
+	return 0;
+}
 #endif
 
 extern int query_asymmetric_key(const struct kernel_pkey_params *,
diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
index 91e080efb918..8365adf842ef 100644
--- a/include/keys/system_keyring.h
+++ b/include/keys/system_keyring.h
@@ -23,10 +23,15 @@ extern int restrict_link_by_builtin_trusted(struct key *keyring,
 					    const struct key_type *type,
 					    const union key_payload *payload,
 					    struct key *restriction_key);
+int restrict_link_by_digsig_builtin(struct key *dest_keyring,
+				    const struct key_type *type,
+				    const union key_payload *payload,
+				    struct key *restriction_key);
 extern __init int load_module_cert(struct key *keyring);
 
 #else
 #define restrict_link_by_builtin_trusted restrict_link_reject
+#define restrict_link_by_digsig_builtin restrict_link_reject
 
 static inline __init int load_module_cert(struct key *keyring)
 {
@@ -41,8 +46,17 @@ extern int restrict_link_by_builtin_and_secondary_trusted(
 	const struct key_type *type,
 	const union key_payload *payload,
 	struct key *restriction_key);
+int restrict_link_by_digsig_builtin_and_secondary(struct key *keyring,
+						  const struct key_type *type,
+						  const union key_payload *payload,
+						  struct key *restriction_key);
+void __init add_to_secondary_keyring(const char *source, const void *data, size_t len);
 #else
 #define restrict_link_by_builtin_and_secondary_trusted restrict_link_by_builtin_trusted
+#define restrict_link_by_digsig_builtin_and_secondary restrict_link_by_digsig_builtin
+static inline void __init add_to_secondary_keyring(const char *source, const void *data, size_t len)
+{
+}
 #endif
 
 #ifdef CONFIG_INTEGRITY_MACHINE_KEYRING