From 146aa8b1453bd8f1ff2304ffb71b4ee0eb9acdcc Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 21 Oct 2015 14:04:48 +0100 Subject: KEYS: Merge the type-specific data with the payload data Merge the type-specific data with the payload data into one four-word chunk as it seems pointless to keep them separate. Use user_key_payload() for accessing the payloads of overloaded user-defined keys. Signed-off-by: David Howells cc: linux-cifs@vger.kernel.org cc: ecryptfs@vger.kernel.org cc: linux-ext4@vger.kernel.org cc: linux-f2fs-devel@lists.sourceforge.net cc: linux-nfs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: linux-ima-devel@lists.sourceforge.net --- include/keys/asymmetric-subtype.h | 2 +- include/keys/asymmetric-type.h | 15 +++++++++++++++ include/keys/user-type.h | 8 ++++++++ 3 files changed, 24 insertions(+), 1 deletion(-) (limited to 'include/keys') diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h index 4b840e822209..4915d40d3c3c 100644 --- a/include/keys/asymmetric-subtype.h +++ b/include/keys/asymmetric-subtype.h @@ -49,7 +49,7 @@ struct asymmetric_key_subtype { static inline struct asymmetric_key_subtype *asymmetric_key_subtype(const struct key *key) { - return key->type_data.p[0]; + return key->payload.data[asym_subtype]; } #endif /* _KEYS_ASYMMETRIC_SUBTYPE_H */ diff --git a/include/keys/asymmetric-type.h b/include/keys/asymmetric-type.h index c0754abb2f56..59c1df9cf922 100644 --- a/include/keys/asymmetric-type.h +++ b/include/keys/asymmetric-type.h @@ -18,6 +18,16 @@ extern struct key_type key_type_asymmetric; +/* + * The key payload is four words. The asymmetric-type key uses them as + * follows: + */ +enum asymmetric_payload_bits { + asym_crypto, + asym_subtype, + asym_key_ids, +}; + /* * Identifiers for an asymmetric key ID. We have three ways of looking up a * key derived from an X.509 certificate: @@ -58,6 +68,11 @@ extern struct asymmetric_key_id *asymmetric_key_generate_id(const void *val_1, size_t len_1, const void *val_2, size_t len_2); +static inline +const struct asymmetric_key_ids *asymmetric_key_ids(const struct key *key) +{ + return key->payload.data[asym_key_ids]; +} /* * The payload is at the discretion of the subtype. diff --git a/include/keys/user-type.h b/include/keys/user-type.h index cebefb069c44..c56fef40f53e 100644 --- a/include/keys/user-type.h +++ b/include/keys/user-type.h @@ -15,6 +15,8 @@ #include #include +#ifdef CONFIG_KEYS + /*****************************************************************************/ /* * the payload for a key of type "user" or "logon" @@ -46,5 +48,11 @@ extern void user_describe(const struct key *user, struct seq_file *m); extern long user_read(const struct key *key, char __user *buffer, size_t buflen); +static inline const struct user_key_payload *user_key_payload(const struct key *key) +{ + return (struct user_key_payload *)rcu_dereference_key(key); +} + +#endif /* CONFIG_KEYS */ #endif /* _KEYS_USER_TYPE_H */ -- cgit