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| author | Roberto Sassu <roberto.sassu@polito.it> | 2011-06-27 13:45:45 +0200 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-06-27 09:11:21 -0400 |
| commit | 1252cc3b232e582e887623dc5f70979418caaaa2 (patch) | |
| tree | bd3a266d7c53ce46a37a7907d7a2b6c8bcb8a6ae /fs/ecryptfs/ecryptfs_kernel.h | |
| parent | 79a73d188726b473ca3bf483244bc96096831905 (diff) | |
| download | linux-1252cc3b232e582e887623dc5f70979418caaaa2.tar.bz2 | |
eCryptfs: added support for the encrypted key type
The function ecryptfs_keyring_auth_tok_for_sig() has been modified in order
to search keys of both 'user' and 'encrypted' types.
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Acked-by: Gianluca Ramunno <ramunno@polito.it>
Acked-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ecryptfs/ecryptfs_kernel.h')
| -rw-r--r-- | fs/ecryptfs/ecryptfs_kernel.h | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index bb8ec5d4301c..b36c5572b3f3 100644 --- a/fs/ecryptfs/ecryptfs_kernel.h +++ b/fs/ecryptfs/ecryptfs_kernel.h @@ -29,6 +29,7 @@ #define ECRYPTFS_KERNEL_H #include <keys/user-type.h> +#include <keys/encrypted-type.h> #include <linux/fs.h> #include <linux/fs_stack.h> #include <linux/namei.h> @@ -78,11 +79,47 @@ struct ecryptfs_page_crypt_context { } param; }; +#if defined(CONFIG_ENCRYPTED_KEYS) || defined(CONFIG_ENCRYPTED_KEYS_MODULE) +static inline struct ecryptfs_auth_tok * +ecryptfs_get_encrypted_key_payload_data(struct key *key) +{ + if (key->type == &key_type_encrypted) + return (struct ecryptfs_auth_tok *) + (&((struct encrypted_key_payload *)key->payload.data)->payload_data); + else + return NULL; +} + +static inline struct key *ecryptfs_get_encrypted_key(char *sig) +{ + return request_key(&key_type_encrypted, sig, NULL); +} + +#else +static inline struct ecryptfs_auth_tok * +ecryptfs_get_encrypted_key_payload_data(struct key *key) +{ + return NULL; +} + +static inline struct key *ecryptfs_get_encrypted_key(char *sig) +{ + return ERR_PTR(-ENOKEY); +} + +#endif /* CONFIG_ENCRYPTED_KEYS */ + static inline struct ecryptfs_auth_tok * ecryptfs_get_key_payload_data(struct key *key) { - return (struct ecryptfs_auth_tok *) - (((struct user_key_payload*)key->payload.data)->data); + struct ecryptfs_auth_tok *auth_tok; + + auth_tok = ecryptfs_get_encrypted_key_payload_data(key); + if (!auth_tok) + return (struct ecryptfs_auth_tok *) + (((struct user_key_payload *)key->payload.data)->data); + else + return auth_tok; } #define ECRYPTFS_MAX_KEYSET_SIZE 1024 |