tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[CRYPTO] aead: Add top-level givencrypt/givdecrypt calls
This patch finally makes the givencrypt/givdecrypt operations available
to users by adding crypto_aead_givencrypt and crypto_aead_givdecrypt.
A suite of helpers to allocate and fill in the request is also available.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+67
+67
include/crypto/aead.h
+67
include/crypto/aead.h
···
15
15
16
16
#include <linux/crypto.h>
17
17
#include <linux/kernel.h>
18
+
#include <linux/slab.h>
18
19
19
20
/**
20
21
* struct aead_givcrypt_request - AEAD request with IV generation
···
34
33
struct aead_givcrypt_request *req)
35
34
{
36
35
return crypto_aead_reqtfm(&req->areq);
36
+
}
37
+
38
+
static inline int crypto_aead_givencrypt(struct aead_givcrypt_request *req)
39
+
{
40
+
struct aead_tfm *crt = crypto_aead_crt(aead_givcrypt_reqtfm(req));
41
+
return crt->givencrypt(req);
42
+
};
43
+
44
+
static inline int crypto_aead_givdecrypt(struct aead_givcrypt_request *req)
45
+
{
46
+
struct aead_tfm *crt = crypto_aead_crt(aead_givcrypt_reqtfm(req));
47
+
return crt->givdecrypt(req);
48
+
};
49
+
50
+
static inline void aead_givcrypt_set_tfm(struct aead_givcrypt_request *req,
51
+
struct crypto_aead *tfm)
52
+
{
53
+
req->areq.base.tfm = crypto_aead_tfm(tfm);
54
+
}
55
+
56
+
static inline struct aead_givcrypt_request *aead_givcrypt_alloc(
57
+
struct crypto_aead *tfm, gfp_t gfp)
58
+
{
59
+
struct aead_givcrypt_request *req;
60
+
61
+
req = kmalloc(sizeof(struct aead_givcrypt_request) +
62
+
crypto_aead_reqsize(tfm), gfp);
63
+
64
+
if (likely(req))
65
+
aead_givcrypt_set_tfm(req, tfm);
66
+
67
+
return req;
68
+
}
69
+
70
+
static inline void aead_givcrypt_free(struct aead_givcrypt_request *req)
71
+
{
72
+
kfree(req);
73
+
}
74
+
75
+
static inline void aead_givcrypt_set_callback(
76
+
struct aead_givcrypt_request *req, u32 flags,
77
+
crypto_completion_t complete, void *data)
78
+
{
79
+
aead_request_set_callback(&req->areq, flags, complete, data);
80
+
}
81
+
82
+
static inline void aead_givcrypt_set_crypt(struct aead_givcrypt_request *req,
83
+
struct scatterlist *src,
84
+
struct scatterlist *dst,
85
+
unsigned int nbytes, void *iv)
86
+
{
87
+
aead_request_set_crypt(&req->areq, src, dst, nbytes, iv);
88
+
}
89
+
90
+
static inline void aead_givcrypt_set_assoc(struct aead_givcrypt_request *req,
91
+
struct scatterlist *assoc,
92
+
unsigned int assoclen)
93
+
{
94
+
aead_request_set_assoc(&req->areq, assoc, assoclen);
95
+
}
96
+
97
+
static inline void aead_givcrypt_set_giv(struct aead_givcrypt_request *req,
98
+
u8 *giv, u64 seq)
99
+
{
100
+
req->giv = giv;
101
+
req->seq = seq;
37
102
}
38
103
39
104
#endif /* _CRYPTO_AEAD_H */