| David Howells | 70025f8 | 2018-10-09 17:46:51 +0100 | [diff] [blame] | 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 */ |