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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /include/keys/asymmetric-subtype.h |
Initial import
Diffstat (limited to 'include/keys/asymmetric-subtype.h')
-rw-r--r-- | include/keys/asymmetric-subtype.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h new file mode 100644 index 000000000..4b840e822 --- /dev/null +++ b/include/keys/asymmetric-subtype.h @@ -0,0 +1,55 @@ +/* Asymmetric public-key cryptography key subtype + * + * See Documentation/security/asymmetric-keys.txt + * + * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _KEYS_ASYMMETRIC_SUBTYPE_H +#define _KEYS_ASYMMETRIC_SUBTYPE_H + +#include <linux/seq_file.h> +#include <keys/asymmetric-type.h> + +struct public_key_signature; + +/* + * Keys of this type declare a subtype that indicates the handlers and + * capabilities. + */ +struct asymmetric_key_subtype { + struct module *owner; + const char *name; + unsigned short name_len; /* length of name */ + + /* Describe a key of this subtype for /proc/keys */ + void (*describe)(const struct key *key, struct seq_file *m); + + /* Destroy a key of this subtype */ + void (*destroy)(void *payload); + + /* Verify the signature on a key of this subtype (optional) */ + int (*verify_signature)(const struct key *key, + const struct public_key_signature *sig); +}; + +/** + * asymmetric_key_subtype - Get the subtype from an asymmetric key + * @key: The key of interest. + * + * Retrieves and returns the subtype pointer of the asymmetric key from the + * type-specific data attached to the key. + */ +static inline +struct asymmetric_key_subtype *asymmetric_key_subtype(const struct key *key) +{ + return key->type_data.p[0]; +} + +#endif /* _KEYS_ASYMMETRIC_SUBTYPE_H */ |