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70025f84 DH |
1 | /* keyctl kernel bits |
2 | * | |
3 | * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public Licence | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the Licence, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #ifndef __LINUX_KEYCTL_H | |
13 | #define __LINUX_KEYCTL_H | |
14 | ||
15 | #include <uapi/linux/keyctl.h> | |
16 | ||
17 | struct kernel_pkey_query { | |
18 | __u32 supported_ops; /* Which ops are supported */ | |
19 | __u32 key_size; /* Size of the key in bits */ | |
20 | __u16 max_data_size; /* Maximum size of raw data to sign in bytes */ | |
21 | __u16 max_sig_size; /* Maximum size of signature in bytes */ | |
22 | __u16 max_enc_size; /* Maximum size of encrypted blob in bytes */ | |
23 | __u16 max_dec_size; /* Maximum size of decrypted blob in bytes */ | |
24 | }; | |
25 | ||
26 | enum kernel_pkey_operation { | |
27 | kernel_pkey_encrypt, | |
28 | kernel_pkey_decrypt, | |
29 | kernel_pkey_sign, | |
30 | kernel_pkey_verify, | |
31 | }; | |
32 | ||
33 | struct kernel_pkey_params { | |
34 | struct key *key; | |
35 | const char *encoding; /* Encoding (eg. "oaep" or "raw" for none) */ | |
36 | const char *hash_algo; /* Digest algorithm used (eg. "sha1") or NULL if N/A */ | |
37 | char *info; /* Modified info string to be released later */ | |
38 | __u32 in_len; /* Input data size */ | |
39 | union { | |
40 | __u32 out_len; /* Output buffer size (enc/dec/sign) */ | |
41 | __u32 in2_len; /* 2nd input data size (verify) */ | |
42 | }; | |
43 | enum kernel_pkey_operation op : 8; | |
44 | }; | |
45 | ||
46 | #endif /* __LINUX_KEYCTL_H */ |