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tipc: add new AEAD key structure for user API 

The new structure 'tipc_aead_key' is added to the 'tipc.h' for user to
be able to transfer a key to TIPC in kernel. Netlink will be used for
this purpose in the later commits.

Acked-by: Ying Xue <ying.xue@windreiver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tuong Lien 2019-11-08 12:05:10 +07:00 committed by David S. Miller
parent 4cbf8ac2fe
commit 134bdac397
1 changed files with 21 additions and 0 deletions
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21
include/uapi/linux/tipc.h
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@ -233,6 +233,27 @@ struct tipc_sioc_nodeid_req {
char node_id[TIPC_NODEID_LEN];
};
/*
* TIPC Crypto, AEAD
*/
#define TIPC_AEAD_ALG_NAME (32)
struct tipc_aead_key {
char alg_name[TIPC_AEAD_ALG_NAME];
unsigned int keylen; /* in bytes */
char key[];
};
#define TIPC_AEAD_KEYLEN_MIN (16 + 4)
#define TIPC_AEAD_KEYLEN_MAX (32 + 4)
#define TIPC_AEAD_KEY_SIZE_MAX (sizeof(struct tipc_aead_key) + \
TIPC_AEAD_KEYLEN_MAX)
static inline int tipc_aead_key_size(struct tipc_aead_key *key)
{
return sizeof(*key) + key->keylen;
}
/* The macros and functions below are deprecated:
*/