diff options
Diffstat (limited to 'security/apparmor/crypto.c')
-rw-r--r-- | security/apparmor/crypto.c | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/security/apparmor/crypto.c b/security/apparmor/crypto.c index d6222ba4e919..532471d0b3a0 100644 --- a/security/apparmor/crypto.c +++ b/security/apparmor/crypto.c | |||
@@ -15,14 +15,14 @@ | |||
15 | * it should be. | 15 | * it should be. |
16 | */ | 16 | */ |
17 | 17 | ||
18 | #include <linux/crypto.h> | 18 | #include <crypto/hash.h> |
19 | 19 | ||
20 | #include "include/apparmor.h" | 20 | #include "include/apparmor.h" |
21 | #include "include/crypto.h" | 21 | #include "include/crypto.h" |
22 | 22 | ||
23 | static unsigned int apparmor_hash_size; | 23 | static unsigned int apparmor_hash_size; |
24 | 24 | ||
25 | static struct crypto_hash *apparmor_tfm; | 25 | static struct crypto_shash *apparmor_tfm; |
26 | 26 | ||
27 | unsigned int aa_hash_size(void) | 27 | unsigned int aa_hash_size(void) |
28 | { | 28 | { |
@@ -32,35 +32,33 @@ unsigned int aa_hash_size(void) | |||
32 | int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start, | 32 | int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start, |
33 | size_t len) | 33 | size_t len) |
34 | { | 34 | { |
35 | struct scatterlist sg[2]; | 35 | struct { |
36 | struct hash_desc desc = { | 36 | struct shash_desc shash; |
37 | .tfm = apparmor_tfm, | 37 | char ctx[crypto_shash_descsize(apparmor_tfm)]; |
38 | .flags = 0 | 38 | } desc; |
39 | }; | ||
40 | int error = -ENOMEM; | 39 | int error = -ENOMEM; |
41 | u32 le32_version = cpu_to_le32(version); | 40 | u32 le32_version = cpu_to_le32(version); |
42 | 41 | ||
43 | if (!apparmor_tfm) | 42 | if (!apparmor_tfm) |
44 | return 0; | 43 | return 0; |
45 | 44 | ||
46 | sg_init_table(sg, 2); | ||
47 | sg_set_buf(&sg[0], &le32_version, 4); | ||
48 | sg_set_buf(&sg[1], (u8 *) start, len); | ||
49 | |||
50 | profile->hash = kzalloc(apparmor_hash_size, GFP_KERNEL); | 45 | profile->hash = kzalloc(apparmor_hash_size, GFP_KERNEL); |
51 | if (!profile->hash) | 46 | if (!profile->hash) |
52 | goto fail; | 47 | goto fail; |
53 | 48 | ||
54 | error = crypto_hash_init(&desc); | 49 | desc.shash.tfm = apparmor_tfm; |
50 | desc.shash.flags = 0; | ||
51 | |||
52 | error = crypto_shash_init(&desc.shash); | ||
55 | if (error) | 53 | if (error) |
56 | goto fail; | 54 | goto fail; |
57 | error = crypto_hash_update(&desc, &sg[0], 4); | 55 | error = crypto_shash_update(&desc.shash, (u8 *) &le32_version, 4); |
58 | if (error) | 56 | if (error) |
59 | goto fail; | 57 | goto fail; |
60 | error = crypto_hash_update(&desc, &sg[1], len); | 58 | error = crypto_shash_update(&desc.shash, (u8 *) start, len); |
61 | if (error) | 59 | if (error) |
62 | goto fail; | 60 | goto fail; |
63 | error = crypto_hash_final(&desc, profile->hash); | 61 | error = crypto_shash_final(&desc.shash, profile->hash); |
64 | if (error) | 62 | if (error) |
65 | goto fail; | 63 | goto fail; |
66 | 64 | ||
@@ -75,19 +73,19 @@ fail: | |||
75 | 73 | ||
76 | static int __init init_profile_hash(void) | 74 | static int __init init_profile_hash(void) |
77 | { | 75 | { |
78 | struct crypto_hash *tfm; | 76 | struct crypto_shash *tfm; |
79 | 77 | ||
80 | if (!apparmor_initialized) | 78 | if (!apparmor_initialized) |
81 | return 0; | 79 | return 0; |
82 | 80 | ||
83 | tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC); | 81 | tfm = crypto_alloc_shash("sha1", 0, CRYPTO_ALG_ASYNC); |
84 | if (IS_ERR(tfm)) { | 82 | if (IS_ERR(tfm)) { |
85 | int error = PTR_ERR(tfm); | 83 | int error = PTR_ERR(tfm); |
86 | AA_ERROR("failed to setup profile sha1 hashing: %d\n", error); | 84 | AA_ERROR("failed to setup profile sha1 hashing: %d\n", error); |
87 | return error; | 85 | return error; |
88 | } | 86 | } |
89 | apparmor_tfm = tfm; | 87 | apparmor_tfm = tfm; |
90 | apparmor_hash_size = crypto_hash_digestsize(apparmor_tfm); | 88 | apparmor_hash_size = crypto_shash_digestsize(apparmor_tfm); |
91 | 89 | ||
92 | aa_info_message("AppArmor sha1 policy hashing enabled"); | 90 | aa_info_message("AppArmor sha1 policy hashing enabled"); |
93 | 91 | ||