/* SPDX-License-Identifier: GPL-2.0-or-later */ /* keyctl kernel bits * * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #ifndef __LINUX_KEYCTL_H #define __LINUX_KEYCTL_H #include <uapi/linux/keyctl.h> struct kernel_pkey_query { __u32 supported_ops; /* Which ops are supported */ __u32 key_size; /* Size of the key in bits */ __u16 max_data_size; /* Maximum size of raw data to sign in bytes */ __u16 max_sig_size; /* Maximum size of signature in bytes */ __u16 max_enc_size; /* Maximum size of encrypted blob in bytes */ __u16 max_dec_size; /* Maximum size of decrypted blob in bytes */ }; enum kernel_pkey_operation { kernel_pkey_encrypt, kernel_pkey_decrypt, kernel_pkey_sign, kernel_pkey_verify, }; struct kernel_pkey_params { struct key *key; const char *encoding; /* Encoding (eg. "oaep" or "raw" for none) */ const char *hash_algo; /* Digest algorithm used (eg. "sha1") or NULL if N/A */ char *info; /* Modified info string to be released later */ __u32 in_len; /* Input data size */ union { __u32 out_len; /* Output buffer size (enc/dec/sign) */ __u32 in2_len; /* 2nd input data size (verify) */ }; enum kernel_pkey_operation op : 8; }; #endif /* __LINUX_KEYCTL_H */