1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ENCRYPTED_KEY_H
3 #define __ENCRYPTED_KEY_H
4
5 #define ENCRYPTED_DEBUG 0
6 #if defined(CONFIG_TRUSTED_KEYS) || \
7 (defined(CONFIG_TRUSTED_KEYS_MODULE) && defined(CONFIG_ENCRYPTED_KEYS_MODULE))
8 extern struct key *request_trusted_key(const char *trusted_desc,
9 const u8 **master_key, size_t *master_keylen);
10 #else
11 static inline struct key *request_trusted_key(const char *trusted_desc,
12 const u8 **master_key,
13 size_t *master_keylen)
14 {
15 return ERR_PTR(-EOPNOTSUPP);
16 }
17 #endif
18
19 #if ENCRYPTED_DEBUG
20 static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
21 {
22 print_hex_dump(KERN_ERR, "master key: ", DUMP_PREFIX_NONE, 32, 1,
23 master_key, master_keylen, 0);
24 }
25
26 static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
27 {
28 print_hex_dump(KERN_ERR, "decrypted data: ", DUMP_PREFIX_NONE, 32, 1,
29 epayload->decrypted_data,
30 epayload->decrypted_datalen, 0);
31 }
32
33 static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
34 unsigned int encrypted_datalen)
35 {
36 print_hex_dump(KERN_ERR, "encrypted data: ", DUMP_PREFIX_NONE, 32, 1,
37 epayload->encrypted_data, encrypted_datalen, 0);
38 }
39
40 static inline void dump_hmac(const char *str, const u8 *digest,
41 unsigned int hmac_size)
42 {
43 if (str)
44 pr_info("encrypted_key: %s", str);
45 print_hex_dump(KERN_ERR, "hmac: ", DUMP_PREFIX_NONE, 32, 1, digest,
46 hmac_size, 0);
47 }
48 #else
49 static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
50 {
51 }
52
53 static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
54 {
55 }
56
57 static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
58 unsigned int encrypted_datalen)
59 {
60 }
61
62 static inline void dump_hmac(const char *str, const u8 *digest,
63 unsigned int hmac_size)
64 {
65 }
66 #endif
67 #endif
68
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