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9c69898783
Encrypted keys are encrypted/decrypted using either a trusted or user-defined key type, which is referred to as the 'master' key. The master key may be of type trusted iff the trusted key is builtin or both the trusted key and encrypted keys are built as modules. This patch resolves the build dependency problem. - Use "masterkey-$(CONFIG_TRUSTED_KEYS)-$(CONFIG_ENCRYPTED_KEYS)" construct to encapsulate the above logic. (Suggested by Dimtry Kasatkin.) - Fixing the encrypted-keys Makefile, results in a module name change from encrypted.ko to encrypted-keys.ko. - Add module dependency for request_trusted_key() definition Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
#ifndef __ENCRYPTED_KEY_H
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#define __ENCRYPTED_KEY_H
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#define ENCRYPTED_DEBUG 0
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#if defined(CONFIG_TRUSTED_KEYS) || \
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(defined(CONFIG_TRUSTED_KEYS_MODULE) && defined(CONFIG_ENCRYPTED_KEYS_MODULE))
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extern struct key *request_trusted_key(const char *trusted_desc,
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u8 **master_key, size_t *master_keylen);
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#else
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static inline struct key *request_trusted_key(const char *trusted_desc,
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u8 **master_key,
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size_t *master_keylen)
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{
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return ERR_PTR(-EOPNOTSUPP);
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}
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#endif
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#if ENCRYPTED_DEBUG
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static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
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{
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print_hex_dump(KERN_ERR, "master key: ", DUMP_PREFIX_NONE, 32, 1,
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master_key, master_keylen, 0);
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}
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static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
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{
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print_hex_dump(KERN_ERR, "decrypted data: ", DUMP_PREFIX_NONE, 32, 1,
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epayload->decrypted_data,
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epayload->decrypted_datalen, 0);
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}
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static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
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unsigned int encrypted_datalen)
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{
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print_hex_dump(KERN_ERR, "encrypted data: ", DUMP_PREFIX_NONE, 32, 1,
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epayload->encrypted_data, encrypted_datalen, 0);
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}
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static inline void dump_hmac(const char *str, const u8 *digest,
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unsigned int hmac_size)
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{
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if (str)
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pr_info("encrypted_key: %s", str);
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print_hex_dump(KERN_ERR, "hmac: ", DUMP_PREFIX_NONE, 32, 1, digest,
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hmac_size, 0);
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}
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#else
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static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
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{
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}
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static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
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{
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}
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static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
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unsigned int encrypted_datalen)
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{
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}
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static inline void dump_hmac(const char *str, const u8 *digest,
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unsigned int hmac_size)
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{
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}
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#endif
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#endif
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