tty: serial: mpc52xx_uart: move static declarations up.grafted

Avoid a compilation error so that they're not used before being
declared.

Fixes: 4d105880666a ("tty: serial: mpc52xx_uart: add bounds check for psc_num array index")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609260356.tJWbd1WU-lkp@intel.com/
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260927203501.14105-1-rosenp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

18 files changed, 818 insertions, 0 deletions

diff --git a/include/keys/asymmetric-parser.h b/include/keys/asymmetric-parser.h
new file mode 100644
index 000000000..516a3f511
--- /dev/null
+++ b/include/keys/asymmetric-parser.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Asymmetric public-key cryptography data parser
+ *
+ * See Documentation/crypto/asymmetric-keys.rst
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_ASYMMETRIC_PARSER_H
+#define _KEYS_ASYMMETRIC_PARSER_H
+
+struct key_preparsed_payload;
+
+/*
+ * Key data parser.  Called during key instantiation.
+ */
+struct asymmetric_key_parser {
+	struct list_head	link;
+	struct module		*owner;
+	const char		*name;
+
+	/* Attempt to parse a key from the data blob passed to add_key() or
+	 * keyctl_instantiate().  Should also generate a proposed description
+	 * that the caller can optionally use for the key.
+	 *
+	 * Return EBADMSG if not recognised.
+	 */
+	int (*parse)(struct key_preparsed_payload *prep);
+};
+
+extern int register_asymmetric_key_parser(struct asymmetric_key_parser *);
+extern void unregister_asymmetric_key_parser(struct asymmetric_key_parser *);
+
+#endif /* _KEYS_ASYMMETRIC_PARSER_H */
diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
new file mode 100644
index 000000000..d55171f64
--- /dev/null
+++ b/include/keys/asymmetric-subtype.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Asymmetric public-key cryptography key subtype
+ *
+ * See Documentation/crypto/asymmetric-keys.rst
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_ASYMMETRIC_SUBTYPE_H
+#define _KEYS_ASYMMETRIC_SUBTYPE_H
+
+#include <linux/seq_file.h>
+#include <keys/asymmetric-type.h>
+
+struct kernel_pkey_query;
+struct kernel_pkey_params;
+struct public_key_signature;
+
+/*
+ * Keys of this type declare a subtype that indicates the handlers and
+ * capabilities.
+ */
+struct asymmetric_key_subtype {
+	struct module		*owner;
+	const char		*name;
+	unsigned short		name_len;	/* length of name */
+
+	/* Describe a key of this subtype for /proc/keys */
+	void (*describe)(const struct key *key, struct seq_file *m);
+
+	/* Destroy a key of this subtype */
+	void (*destroy)(void *payload_crypto, void *payload_auth);
+
+	int (*query)(const struct kernel_pkey_params *params,
+		     struct kernel_pkey_query *info);
+
+	/* Encrypt/decrypt/sign data */
+	int (*eds_op)(struct kernel_pkey_params *params,
+		      const void *in, void *out);
+
+	/* Verify the signature on a key of this subtype (optional) */
+	int (*verify_signature)(const struct key *key,
+				const struct public_key_signature *sig);
+};
+
+/**
+ * asymmetric_key_subtype - Get the subtype from an asymmetric key
+ * @key: The key of interest.
+ *
+ * Retrieves and returns the subtype pointer of the asymmetric key from the
+ * type-specific data attached to the key.
+ */
+static inline
+struct asymmetric_key_subtype *asymmetric_key_subtype(const struct key *key)
+{
+	return key->payload.data[asym_subtype];
+}
+
+#endif /* _KEYS_ASYMMETRIC_SUBTYPE_H */
diff --git a/include/keys/asymmetric-type.h b/include/keys/asymmetric-type.h
new file mode 100644
index 000000000..1b91c8f98
--- /dev/null
+++ b/include/keys/asymmetric-type.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Asymmetric Public-key cryptography key type interface
+ *
+ * See Documentation/crypto/asymmetric-keys.rst
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_ASYMMETRIC_TYPE_H
+#define _KEYS_ASYMMETRIC_TYPE_H
+
+#include <linux/key-type.h>
+#include <linux/verification.h>
+
+extern struct key_type key_type_asymmetric;
+
+/*
+ * The key payload is four words.  The asymmetric-type key uses them as
+ * follows:
+ */
+enum asymmetric_payload_bits {
+	asym_crypto,		/* The data representing the key */
+	asym_subtype,		/* Pointer to an asymmetric_key_subtype struct */
+	asym_key_ids,		/* Pointer to an asymmetric_key_ids struct */
+	asym_auth		/* The key's authorisation (signature, parent key ID) */
+};
+
+/*
+ * Identifiers for an asymmetric key ID.  We have three ways of looking up a
+ * key derived from an X.509 certificate:
+ *
+ * (1) Serial Number & Issuer.  Non-optional.  This is the only valid way to
+ *     map a PKCS#7 signature to an X.509 certificate.
+ *
+ * (2) Issuer & Subject Unique IDs.  Optional.  These were the original way to
+ *     match X.509 certificates, but have fallen into disuse in favour of (3).
+ *
+ * (3) Auth & Subject Key Identifiers.  Optional.  SKIDs are only provided on
+ *     CA keys that are intended to sign other keys, so don't appear in end
+ *     user certificates unless forced.
+ *
+ * We could also support an PGP key identifier, which is just a SHA1 sum of the
+ * public key and certain parameters, but since we don't support PGP keys at
+ * the moment, we shall ignore those.
+ *
+ * What we actually do is provide a place where binary identifiers can be
+ * stashed and then compare against them when checking for an id match.
+ */
+struct asymmetric_key_id {
+	unsigned short	len;
+	unsigned char	data[] __counted_by(len);
+};
+
+struct asymmetric_key_ids {
+	void		*id[3];
+};
+
+extern bool asymmetric_key_id_same(const struct asymmetric_key_id *kid1,
+				   const struct asymmetric_key_id *kid2);
+
+extern bool asymmetric_key_id_partial(const struct asymmetric_key_id *kid1,
+				      const struct asymmetric_key_id *kid2);
+
+extern struct asymmetric_key_id *asymmetric_key_generate_id(const void *val_1,
+							    size_t len_1,
+							    const void *val_2,
+							    size_t len_2);
+static inline
+const struct asymmetric_key_ids *asymmetric_key_ids(const struct key *key)
+{
+	return key->payload.data[asym_key_ids];
+}
+
+static inline
+const struct public_key *asymmetric_key_public_key(const struct key *key)
+{
+	return key->payload.data[asym_crypto];
+}
+
+extern struct key *find_asymmetric_key(struct key *keyring,
+				       const struct asymmetric_key_id *id_0,
+				       const struct asymmetric_key_id *id_1,
+				       const struct asymmetric_key_id *id_2,
+				       bool partial);
+
+int x509_load_certificate_list(const u8 cert_list[], const unsigned long list_size,
+			       const struct key *keyring);
+
+/*
+ * The payload is at the discretion of the subtype.
+ */
+
+#endif /* _KEYS_ASYMMETRIC_TYPE_H */
diff --git a/include/keys/big_key-type.h b/include/keys/big_key-type.h
new file mode 100644
index 000000000..988d90d77
--- /dev/null
+++ b/include/keys/big_key-type.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Big capacity key type.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_BIG_KEY_TYPE_H
+#define _KEYS_BIG_KEY_TYPE_H
+
+#include <linux/key-type.h>
+
+extern struct key_type key_type_big_key;
+
+extern int big_key_preparse(struct key_preparsed_payload *prep);
+extern void big_key_free_preparse(struct key_preparsed_payload *prep);
+extern void big_key_revoke(struct key *key);
+extern void big_key_destroy(struct key *key);
+extern void big_key_describe(const struct key *big_key, struct seq_file *m);
+extern long big_key_read(const struct key *key, char *buffer, size_t buflen);
+extern int big_key_update(struct key *key, struct key_preparsed_payload *prep);
+
+#endif /* _KEYS_BIG_KEY_TYPE_H */
diff --git a/include/keys/ceph-type.h b/include/keys/ceph-type.h
new file mode 100644
index 000000000..aa6d3e050
--- /dev/null
+++ b/include/keys/ceph-type.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _KEYS_CEPH_TYPE_H
+#define _KEYS_CEPH_TYPE_H
+
+#include <linux/key.h>
+
+extern struct key_type key_type_ceph;
+
+#endif
diff --git a/include/keys/dns_resolver-type.h b/include/keys/dns_resolver-type.h
new file mode 100644
index 000000000..1b89088a2
--- /dev/null
+++ b/include/keys/dns_resolver-type.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* DNS resolver key type
+ *
+ * Copyright (C) 2010 Wang Lei. All Rights Reserved.
+ * Written by Wang Lei (wang840925@gmail.com)
+ */
+
+#ifndef _KEYS_DNS_RESOLVER_TYPE_H
+#define _KEYS_DNS_RESOLVER_TYPE_H
+
+#include <linux/key-type.h>
+
+extern struct key_type key_type_dns_resolver;
+
+#endif /* _KEYS_DNS_RESOLVER_TYPE_H */
diff --git a/include/keys/encrypted-type.h b/include/keys/encrypted-type.h
new file mode 100644
index 000000000..abfcbe020
--- /dev/null
+++ b/include/keys/encrypted-type.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2010 IBM Corporation
+ * Copyright (C) 2010 Politecnico di Torino, Italy
+ *                    TORSEC group -- https://security.polito.it
+ *
+ * Authors:
+ * Mimi Zohar <zohar@us.ibm.com>
+ * Roberto Sassu <roberto.sassu@polito.it>
+ */
+
+#ifndef _KEYS_ENCRYPTED_TYPE_H
+#define _KEYS_ENCRYPTED_TYPE_H
+
+#include <linux/key.h>
+#include <linux/rcupdate.h>
+
+struct encrypted_key_payload {
+	struct rcu_head rcu;
+	char *format;		/* datablob: format */
+	char *master_desc;	/* datablob: master key name */
+	char *datalen;		/* datablob: decrypted key length */
+	u8 *iv;			/* datablob: iv */
+	u8 *encrypted_data;	/* datablob: encrypted data */
+	unsigned short datablob_len;	/* length of datablob */
+	unsigned short decrypted_datalen;	/* decrypted data length */
+	unsigned short payload_datalen;		/* payload data length */
+	unsigned short encrypted_key_format;	/* encrypted key format */
+	u8 *decrypted_data;	/* decrypted data */
+	u8 payload_data[];	/* payload data + datablob + hmac */
+};
+
+extern struct key_type key_type_encrypted;
+
+#endif /* _KEYS_ENCRYPTED_TYPE_H */
diff --git a/include/keys/keyring-type.h b/include/keys/keyring-type.h
new file mode 100644
index 000000000..1dc83862f
--- /dev/null
+++ b/include/keys/keyring-type.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Keyring key type
+ *
+ * Copyright (C) 2008, 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_KEYRING_TYPE_H
+#define _KEYS_KEYRING_TYPE_H
+
+#include <linux/key.h>
+#include <linux/assoc_array.h>
+
+#endif /* _KEYS_KEYRING_TYPE_H */
diff --git a/include/keys/request_key_auth-type.h b/include/keys/request_key_auth-type.h
new file mode 100644
index 000000000..01e42ee5f
--- /dev/null
+++ b/include/keys/request_key_auth-type.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* request_key authorisation token key type
+ *
+ * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_REQUEST_KEY_AUTH_TYPE_H
+#define _KEYS_REQUEST_KEY_AUTH_TYPE_H
+
+#include <linux/key.h>
+#include <linux/refcount.h>
+
+/*
+ * Authorisation record for request_key().
+ */
+struct request_key_auth {
+	struct rcu_head		rcu;
+	refcount_t		usage;
+	struct key		*target_key;
+	struct key		*dest_keyring;
+	const struct cred	*cred;
+	void			*callout_info;
+	size_t			callout_len;
+	pid_t			pid;
+	char			op[8];
+} __randomize_layout;
+
+static inline struct request_key_auth *get_request_key_auth(const struct key *key)
+{
+	return key->payload.data[0];
+}
+
+
+#endif /* _KEYS_REQUEST_KEY_AUTH_TYPE_H */
diff --git a/include/keys/rxrpc-type.h b/include/keys/rxrpc-type.h
new file mode 100644
index 000000000..0ddbe197a
--- /dev/null
+++ b/include/keys/rxrpc-type.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* RxRPC key type
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_RXRPC_TYPE_H
+#define _KEYS_RXRPC_TYPE_H
+
+#include <linux/key.h>
+#include <crypto/krb5.h>
+
+/*
+ * key type for AF_RXRPC keys
+ */
+extern struct key_type key_type_rxrpc;
+
+extern struct key *rxrpc_get_null_key(const char *);
+
+/*
+ * RxRPC key for Kerberos IV (type-2 security)
+ */
+struct rxkad_key {
+	u32	vice_id;
+	u32	start;			/* time at which ticket starts */
+	u32	expiry;			/* time at which ticket expires */
+	u32	kvno;			/* key version number */
+	u8	primary_flag;		/* T if key for primary cell for this user */
+	u16	ticket_len;		/* length of ticket[] */
+	u8	session_key[8];		/* DES session key */
+	u8	ticket[];		/* the encrypted ticket */
+};
+
+/*
+ * RxRPC key for YFS-RxGK (type-6 security)
+ */
+struct rxgk_key {
+	s64		begintime;	/* Time at which the ticket starts */
+	s64		endtime;	/* Time at which the ticket ends */
+	u64		lifetime;	/* Maximum lifespan of a connection (seconds) */
+	u64		bytelife;	/* Maximum number of bytes on a connection */
+	unsigned int	enctype;	/* Encoding type */
+	s8		level;		/* Negotiated security RXRPC_SECURITY_PLAIN/AUTH/ENCRYPT */
+	struct krb5_buffer key;		/* Master key, K0 */
+	struct krb5_buffer ticket;	/* Ticket to be passed to server */
+	u8		_key[];		/* Key storage */
+};
+
+/*
+ * list of tokens attached to an rxrpc key
+ */
+struct rxrpc_key_token {
+	u16	security_index;		/* RxRPC header security index */
+	bool	no_leak_key;		/* Don't copy the key to userspace */
+	struct rxrpc_key_token *next;	/* the next token in the list */
+	union {
+		struct rxkad_key *kad;
+		struct rxgk_key *rxgk;
+	};
+};
+
+/*
+ * structure of raw payloads passed to add_key() or instantiate key
+ */
+struct rxrpc_key_data_v1 {
+	u16		security_index;
+	u16		ticket_length;
+	u32		expiry;			/* time_t */
+	u32		kvno;
+	u8		session_key[8];
+	u8		ticket[];
+};
+
+/*
+ * AF_RXRPC key payload derived from XDR format
+ * - based on openafs-1.4.10/src/auth/afs_token.xg
+ */
+#define AFSTOKEN_LENGTH_MAX		16384	/* max payload size */
+#define AFSTOKEN_STRING_MAX		256	/* max small string length */
+#define AFSTOKEN_DATA_MAX		64	/* max small data length */
+#define AFSTOKEN_CELL_MAX		64	/* max cellname length */
+#define AFSTOKEN_MAX			8	/* max tokens per payload */
+#define AFSTOKEN_BDATALN_MAX		16384	/* max big data length */
+#define AFSTOKEN_RK_TIX_MAX		12000	/* max RxKAD ticket size */
+#define AFSTOKEN_GK_KEY_MAX		64	/* max GSSAPI key size */
+#define AFSTOKEN_GK_TOKEN_MAX		16384	/* max GSSAPI token size */
+
+/*
+ * Truncate a time64_t to the range from 1970 to 2106 as in the network
+ * protocol.
+ */
+static inline u32 rxrpc_time64_to_u32(time64_t time)
+{
+	if (time < 0)
+		return 0;
+
+	if (time > UINT_MAX)
+		return UINT_MAX;
+
+	return (u32)time;
+}
+
+/*
+ * Extend u32 back to time64_t using the same 1970-2106 range.
+ */
+static inline time64_t rxrpc_u32_to_time64(u32 time)
+{
+	return (time64_t)time;
+}
+
+#endif /* _KEYS_RXRPC_TYPE_H */
diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
new file mode 100644
index 000000000..a6c2897bc
--- /dev/null
+++ b/include/keys/system_keyring.h
@@ -0,0 +1,133 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* System keyring containing trusted public keys.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_SYSTEM_KEYRING_H
+#define _KEYS_SYSTEM_KEYRING_H
+
+#include <linux/key.h>
+
+enum blacklist_hash_type {
+	/* TBSCertificate hash */
+	BLACKLIST_HASH_X509_TBS = 1,
+	/* Raw data hash */
+	BLACKLIST_HASH_BINARY = 2,
+};
+
+#ifdef CONFIG_SYSTEM_TRUSTED_KEYRING
+
+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)
+{
+	return 0;
+}
+
+#endif
+
+#ifdef CONFIG_SECONDARY_TRUSTED_KEYRING
+extern int restrict_link_by_builtin_and_secondary_trusted(
+	struct key *keyring,
+	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
+extern int restrict_link_by_builtin_secondary_and_machine(
+	struct key *dest_keyring,
+	const struct key_type *type,
+	const union key_payload *payload,
+	struct key *restrict_key);
+extern void __init set_machine_trusted_keys(struct key *keyring);
+#else
+#define restrict_link_by_builtin_secondary_and_machine restrict_link_by_builtin_trusted
+static inline void __init set_machine_trusted_keys(struct key *keyring)
+{
+}
+#endif
+
+#ifdef CONFIG_SYSTEM_BLACKLIST_KEYRING
+extern int mark_hash_blacklisted(const u8 *hash, size_t hash_len,
+			       enum blacklist_hash_type hash_type);
+extern int is_hash_blacklisted(const u8 *hash, size_t hash_len,
+			       enum blacklist_hash_type hash_type);
+extern int is_binary_blacklisted(const u8 *hash, size_t hash_len);
+#else
+static inline int is_hash_blacklisted(const u8 *hash, size_t hash_len,
+				      enum blacklist_hash_type hash_type)
+{
+	return 0;
+}
+
+static inline int is_binary_blacklisted(const u8 *hash, size_t hash_len)
+{
+	return 0;
+}
+#endif
+
+struct pkcs7_message;
+#ifdef CONFIG_SYSTEM_REVOCATION_LIST
+extern int add_key_to_revocation_list(const char *data, size_t size);
+extern int is_key_on_revocation_list(struct pkcs7_message *pkcs7);
+#else
+static inline int add_key_to_revocation_list(const char *data, size_t size)
+{
+	return 0;
+}
+static inline int is_key_on_revocation_list(struct pkcs7_message *pkcs7)
+{
+	return -ENOKEY;
+}
+#endif
+
+#ifdef CONFIG_IMA_BLACKLIST_KEYRING
+extern struct key *ima_blacklist_keyring;
+
+static inline struct key *get_ima_blacklist_keyring(void)
+{
+	return ima_blacklist_keyring;
+}
+#else
+static inline struct key *get_ima_blacklist_keyring(void)
+{
+	return NULL;
+}
+#endif /* CONFIG_IMA_BLACKLIST_KEYRING */
+
+#if defined(CONFIG_INTEGRITY_PLATFORM_KEYRING) && \
+	defined(CONFIG_SYSTEM_TRUSTED_KEYRING)
+extern void __init set_platform_trusted_keys(struct key *keyring);
+#else
+static inline void set_platform_trusted_keys(struct key *keyring)
+{
+}
+#endif
+
+#endif /* _KEYS_SYSTEM_KEYRING_H */
diff --git a/include/keys/trusted-type.h b/include/keys/trusted-type.h
new file mode 100644
index 000000000..9f9940482
--- /dev/null
+++ b/include/keys/trusted-type.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2010 IBM Corporation
+ * Author: David Safford <safford@us.ibm.com>
+ */
+
+#ifndef _KEYS_TRUSTED_TYPE_H
+#define _KEYS_TRUSTED_TYPE_H
+
+#include <linux/key.h>
+#include <linux/rcupdate.h>
+#include <linux/tpm.h>
+
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) "trusted_key: " fmt
+
+#define MIN_KEY_SIZE			32
+#define MAX_KEY_SIZE			128
+#if IS_ENABLED(CONFIG_TRUSTED_KEYS_PKWM)
+#define MAX_BLOB_SIZE			1152
+#else
+#define MAX_BLOB_SIZE                   512
+#endif
+#define MAX_PCRINFO_SIZE		64
+#define MAX_DIGEST_SIZE			64
+
+struct trusted_key_payload {
+	struct rcu_head rcu;
+	unsigned int key_len;
+	unsigned int blob_len;
+	unsigned char migratable;
+	unsigned char old_format;
+	unsigned char key[MAX_KEY_SIZE + 1];
+	unsigned char blob[MAX_BLOB_SIZE];
+};
+
+struct trusted_key_options {
+	uint16_t keytype;
+	uint32_t keyhandle;
+	unsigned char keyauth[TPM_DIGEST_SIZE];
+	uint32_t blobauth_len;
+	unsigned char blobauth[TPM_DIGEST_SIZE];
+	uint32_t pcrinfo_len;
+	unsigned char pcrinfo[MAX_PCRINFO_SIZE];
+	int pcrlock;
+	uint32_t hash;
+	uint32_t policydigest_len;
+	unsigned char policydigest[MAX_DIGEST_SIZE];
+	uint32_t policyhandle;
+	void *private;
+};
+
+struct trusted_key_ops {
+	/*
+	 * flag to indicate if trusted key implementation supports migration
+	 * or not.
+	 */
+	unsigned char migratable;
+
+	/* Initialize key interface. */
+	int (*init)(void);
+
+	/* Seal a key. */
+	int (*seal)(struct trusted_key_payload *p, char *datablob);
+
+	/* Unseal a key. */
+	int (*unseal)(struct trusted_key_payload *p, char *datablob);
+
+	/* Optional: Get a randomized key. */
+	int (*get_random)(unsigned char *key, size_t key_len);
+
+	/* Exit key interface. */
+	void (*exit)(void);
+};
+
+struct trusted_key_source {
+	char *name;
+	struct trusted_key_ops *ops;
+};
+
+extern struct key_type key_type_trusted;
+
+#ifdef CONFIG_TRUSTED_KEYS_DEBUG
+extern bool trusted_debug;
+
+static inline void dump_payload(struct trusted_key_payload *p)
+{
+	if (!trusted_debug)
+		return;
+
+	pr_debug("key_len %d\n", p->key_len);
+	print_hex_dump_debug("key ", DUMP_PREFIX_NONE,
+			     16, 1, p->key, p->key_len, 0);
+	pr_debug("bloblen %d\n", p->blob_len);
+	print_hex_dump_debug("blob ", DUMP_PREFIX_NONE,
+			     16, 1, p->blob, p->blob_len, 0);
+	pr_debug("migratable %d\n", p->migratable);
+}
+#else
+static inline void dump_payload(struct trusted_key_payload *p)
+{
+}
+#endif
+
+#endif /* _KEYS_TRUSTED_TYPE_H */
diff --git a/include/keys/trusted_caam.h b/include/keys/trusted_caam.h
new file mode 100644
index 000000000..73fe2f32f
--- /dev/null
+++ b/include/keys/trusted_caam.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 Pengutronix, Ahmad Fatoum <kernel@pengutronix.de>
+ */
+
+#ifndef __CAAM_TRUSTED_KEY_H
+#define __CAAM_TRUSTED_KEY_H
+
+extern struct trusted_key_ops trusted_key_caam_ops;
+
+#endif
diff --git a/include/keys/trusted_dcp.h b/include/keys/trusted_dcp.h
new file mode 100644
index 000000000..9aaa42075
--- /dev/null
+++ b/include/keys/trusted_dcp.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 sigma star gmbh
+ */
+
+#ifndef TRUSTED_DCP_H
+#define TRUSTED_DCP_H
+
+extern struct trusted_key_ops dcp_trusted_key_ops;
+
+#endif
diff --git a/include/keys/trusted_pkwm.h b/include/keys/trusted_pkwm.h
new file mode 100644
index 000000000..4035b9776
--- /dev/null
+++ b/include/keys/trusted_pkwm.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PKWM_TRUSTED_KEY_H
+#define __PKWM_TRUSTED_KEY_H
+
+#include <keys/trusted-type.h>
+#include <linux/bitops.h>
+#include <linux/printk.h>
+
+extern struct trusted_key_ops pkwm_trusted_key_ops;
+
+struct trusted_pkwm_options {
+	u16 wrap_flags;
+};
+
+static inline void dump_options(struct trusted_key_options *o)
+{
+	const struct trusted_pkwm_options *pkwm;
+	bool sb_audit_or_enforce_bit;
+	bool sb_enforce_bit;
+
+	pkwm = o->private;
+	sb_audit_or_enforce_bit = pkwm->wrap_flags & BIT(0);
+	sb_enforce_bit = pkwm->wrap_flags & BIT(1);
+
+	if (sb_audit_or_enforce_bit)
+		pr_debug("secure boot mode required: audit or enforce");
+	else if (sb_enforce_bit)
+		pr_debug("secure boot mode required: enforce");
+	else
+		pr_debug("secure boot mode required: disabled");
+}
+
+#endif
diff --git a/include/keys/trusted_tee.h b/include/keys/trusted_tee.h
new file mode 100644
index 000000000..151be25a9
--- /dev/null
+++ b/include/keys/trusted_tee.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019-2021 Linaro Ltd.
+ *
+ * Author:
+ * Sumit Garg <sumit.garg@linaro.org>
+ */
+
+#ifndef __TEE_TRUSTED_KEY_H
+#define __TEE_TRUSTED_KEY_H
+
+#include <keys/trusted-type.h>
+
+extern struct trusted_key_ops trusted_key_tee_ops;
+
+#endif
diff --git a/include/keys/trusted_tpm.h b/include/keys/trusted_tpm.h
new file mode 100644
index 000000000..3a0fa3bc8
--- /dev/null
+++ b/include/keys/trusted_tpm.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TRUSTED_TPM_H
+#define __TRUSTED_TPM_H
+
+#include <keys/trusted-type.h>
+
+extern struct trusted_key_ops trusted_key_tpm_ops;
+
+int tpm2_seal_trusted(struct tpm_chip *chip,
+		      struct trusted_key_payload *payload,
+		      struct trusted_key_options *options);
+int tpm2_unseal_trusted(struct tpm_chip *chip,
+			struct trusted_key_payload *payload,
+			struct trusted_key_options *options);
+
+#endif
diff --git a/include/keys/user-type.h b/include/keys/user-type.h
new file mode 100644
index 000000000..386c31432
--- /dev/null
+++ b/include/keys/user-type.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* user-type.h: User-defined key type
+ *
+ * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _KEYS_USER_TYPE_H
+#define _KEYS_USER_TYPE_H
+
+#include <linux/key.h>
+#include <linux/rcupdate.h>
+
+#ifdef CONFIG_KEYS
+
+/*****************************************************************************/
+/*
+ * the payload for a key of type "user" or "logon"
+ * - once filled in and attached to a key:
+ *   - the payload struct is invariant may not be changed, only replaced
+ *   - the payload must be read with RCU procedures or with the key semaphore
+ *     held
+ *   - the payload may only be replaced with the key semaphore write-locked
+ * - the key's data length is the size of the actual data, not including the
+ *   payload wrapper
+ */
+struct user_key_payload {
+	struct rcu_head	rcu;		/* RCU destructor */
+	unsigned short	datalen;	/* length of this data */
+	char		data[] __aligned(__alignof__(u64)); /* actual data */
+};
+
+extern struct key_type key_type_user;
+extern struct key_type key_type_logon;
+
+struct key_preparsed_payload;
+
+extern int user_preparse(struct key_preparsed_payload *prep);
+extern void user_free_preparse(struct key_preparsed_payload *prep);
+extern int user_update(struct key *key, struct key_preparsed_payload *prep);
+extern void user_revoke(struct key *key);
+extern void user_destroy(struct key *key);
+extern void user_describe(const struct key *user, struct seq_file *m);
+extern long user_read(const struct key *key, char *buffer, size_t buflen);
+
+static inline const struct user_key_payload *user_key_payload_rcu(const struct key *key)
+{
+	return (struct user_key_payload *)dereference_key_rcu(key);
+}
+
+static inline struct user_key_payload *user_key_payload_locked(const struct key *key)
+{
+	return (struct user_key_payload *)dereference_key_locked((struct key *)key);
+}
+
+#endif /* CONFIG_KEYS */
+
+#endif /* _KEYS_USER_TYPE_H */