From: Eric Biggers <ebigg...@google.com>
Update the filesystem encryption kernel code to use the new names for
the UAPI constants rather than the old names.
Signed-off-by: Eric Biggers <ebigg...@google.com>
---
fs/crypto/fname.c | 4 ++--
fs/crypto/fscrypt_private.h | 4 ++--
fs/crypto/keyinfo.c | 36 +++++++++++++++++-------------------
fs/crypto/policy.c | 14 +++++++-------
include/linux/fscrypt.h | 8 ++++----
5 files changed, 32 insertions(+), 34 deletions(-)
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 2878289b3ed2..c91bcef65b9f 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -46,7 +46,7 @@ static int fname_encrypt(struct inode *inode,
int res = 0;
char iv[FS_CRYPTO_BLOCK_SIZE];
struct scatterlist sg;
- int padding = 4 << (ci->ci_flags & FS_POLICY_FLAGS_PAD_MASK);
+ int padding = 4 << (ci->ci_flags & FSCRYPT_POLICY_FLAGS_PAD_MASK);
unsigned int lim;
unsigned int cryptlen;
@@ -217,7 +217,7 @@ u32 fscrypt_fname_encrypted_size(const struct inode *inode,
u32 ilen)
struct fscrypt_info *ci = inode->i_crypt_info;
if (ci)
- padding = 4 << (ci->ci_flags & FS_POLICY_FLAGS_PAD_MASK);
+ padding = 4 << (ci->ci_flags & FSCRYPT_POLICY_FLAGS_PAD_MASK);
ilen = max(ilen, (u32)FS_CRYPTO_BLOCK_SIZE);
return round_up(ilen, padding);
}
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index a180981ee6d7..5cb80a2d39ea 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -43,7 +43,7 @@ struct fscrypt_context {
u8 contents_encryption_mode;
u8 filenames_encryption_mode;
u8 flags;
- u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+ u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
} __packed;
@@ -59,7 +59,7 @@ struct fscrypt_info {
u8 ci_flags;
struct crypto_skcipher *ci_ctfm;
struct crypto_cipher *ci_essiv_tfm;
- u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
+ u8 ci_master_key[FSCRYPT_KEY_DESCRIPTOR_SIZE];
};
typedef enum {
diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index 7aed93bcfb82..ac41f646e7b7 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -38,7 +38,7 @@ static void derive_crypt_complete(struct crypto_async_request
*req, int rc)
*/
static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE],
const struct fscrypt_key *source_key,
- u8 derived_raw_key[FS_MAX_KEY_SIZE])
+ u8 derived_raw_key[FSCRYPT_MAX_KEY_SIZE])
{
int res = 0;
struct skcipher_request *req = NULL;
@@ -91,7 +91,7 @@ static int validate_user_key(struct fscrypt_info *crypt_info,
int res;
description = kasprintf(GFP_NOFS, "%s%*phN", prefix,
- FS_KEY_DESCRIPTOR_SIZE,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE,
ctx->master_key_descriptor);
if (!description)
return -ENOMEM;
@@ -121,7 +121,8 @@ static int validate_user_key(struct fscrypt_info
*crypt_info,
master_key = (struct fscrypt_key *)ukp->data;
BUILD_BUG_ON(FS_AES_128_ECB_KEY_SIZE != FS_KEY_DERIVATION_NONCE_SIZE);
- if (master_key->size < min_keysize || master_key->size > FS_MAX_KEY_SIZE
+ if (master_key->size < min_keysize ||
+ master_key->size > FSCRYPT_MAX_KEY_SIZE
|| master_key->size % AES_BLOCK_SIZE != 0) {
printk_once(KERN_WARNING
"%s: key size incorrect: %d\n",
@@ -140,14 +141,10 @@ static const struct {
const char *cipher_str;
int keysize;
} available_modes[] = {
- [FS_ENCRYPTION_MODE_AES_256_XTS] = { "xts(aes)",
- FS_AES_256_XTS_KEY_SIZE },
- [FS_ENCRYPTION_MODE_AES_256_CTS] = { "cts(cbc(aes))",
- FS_AES_256_CTS_KEY_SIZE },
- [FS_ENCRYPTION_MODE_AES_128_CBC] = { "cbc(aes)",
- FS_AES_128_CBC_KEY_SIZE },
- [FS_ENCRYPTION_MODE_AES_128_CTS] = { "cts(cbc(aes))",
- FS_AES_128_CTS_KEY_SIZE },
+ [FSCRYPT_MODE_AES_256_XTS] = { "xts(aes)", FS_AES_256_XTS_KEY_SIZE },
+ [FSCRYPT_MODE_AES_256_CTS] = { "cts(cbc(aes))", FS_AES_256_CTS_KEY_SIZE
},
+ [FSCRYPT_MODE_AES_128_CBC] = { "cbc(aes)", FS_AES_128_CBC_KEY_SIZE },
+ [FSCRYPT_MODE_AES_128_CTS] = { "cts(cbc(aes))", FS_AES_128_CTS_KEY_SIZE
},
};
static int determine_cipher_type(struct fscrypt_info *ci, struct inode *inode,
@@ -278,9 +275,10 @@ int fscrypt_get_encryption_info(struct inode *inode)
/* Fake up a context for an unencrypted directory */
memset(&ctx, 0, sizeof(ctx));
ctx.format = FS_ENCRYPTION_CONTEXT_FORMAT_V1;
- ctx.contents_encryption_mode = FS_ENCRYPTION_MODE_AES_256_XTS;
- ctx.filenames_encryption_mode = FS_ENCRYPTION_MODE_AES_256_CTS;
- memset(ctx.master_key_descriptor, 0x42, FS_KEY_DESCRIPTOR_SIZE);
+ ctx.contents_encryption_mode = FSCRYPT_MODE_AES_256_XTS;
+ ctx.filenames_encryption_mode = FSCRYPT_MODE_AES_256_CTS;
+ memset(ctx.master_key_descriptor, 0x42,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
} else if (res != sizeof(ctx)) {
return -EINVAL;
}
@@ -288,7 +286,7 @@ int fscrypt_get_encryption_info(struct inode *inode)
if (ctx.format != FS_ENCRYPTION_CONTEXT_FORMAT_V1)
return -EINVAL;
- if (ctx.flags & ~FS_POLICY_FLAGS_VALID)
+ if (ctx.flags & ~FSCRYPT_POLICY_FLAGS_VALID)
return -EINVAL;
crypt_info = kmem_cache_alloc(fscrypt_info_cachep, GFP_NOFS);
@@ -312,12 +310,12 @@ int fscrypt_get_encryption_info(struct inode *inode)
* crypto API as part of key derivation.
*/
res = -ENOMEM;
- raw_key = kmalloc(FS_MAX_KEY_SIZE, GFP_NOFS);
+ raw_key = kmalloc(FSCRYPT_MAX_KEY_SIZE, GFP_NOFS);
if (!raw_key)
goto out;
- res = validate_user_key(crypt_info, &ctx, raw_key, FS_KEY_DESC_PREFIX,
- keysize);
+ res = validate_user_key(crypt_info, &ctx, raw_key,
+ FSCRYPT_KEY_DESC_PREFIX, keysize);
if (res && inode->i_sb->s_cop->key_prefix) {
int res2 = validate_user_key(crypt_info, &ctx, raw_key,
inode->i_sb->s_cop->key_prefix,
@@ -349,7 +347,7 @@ int fscrypt_get_encryption_info(struct inode *inode)
goto out;
if (S_ISREG(inode->i_mode) &&
- crypt_info->ci_data_mode == FS_ENCRYPTION_MODE_AES_128_CBC) {
+ crypt_info->ci_data_mode == FSCRYPT_MODE_AES_128_CBC) {
res = init_essiv_generator(crypt_info, raw_key, keysize);
if (res) {
pr_debug("%s: error %d (inode %lu) allocating essiv
tfm\n",
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index 6a63b8a0d46c..19332a6fd52d 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -21,7 +21,7 @@ static bool is_encryption_context_consistent_with_policy(
const struct fscrypt_policy *policy)
{
return memcmp(ctx->master_key_descriptor, policy->master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+ FSCRYPT_KEY_DESCRIPTOR_SIZE) == 0 &&
(ctx->flags == policy->flags) &&
(ctx->contents_encryption_mode ==
policy->contents_encryption_mode) &&
@@ -36,13 +36,13 @@ static int create_encryption_context_from_policy(struct
inode *inode,
ctx.format = FS_ENCRYPTION_CONTEXT_FORMAT_V1;
memcpy(ctx.master_key_descriptor, policy->master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE);
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
if (!fscrypt_valid_enc_modes(policy->contents_encryption_mode,
policy->filenames_encryption_mode))
return -EINVAL;
- if (policy->flags & ~FS_POLICY_FLAGS_VALID)
+ if (policy->flags & ~FSCRYPT_POLICY_FLAGS_VALID)
return -EINVAL;
ctx.contents_encryption_mode = policy->contents_encryption_mode;
@@ -125,7 +125,7 @@ int fscrypt_ioctl_get_policy(struct file *filp, void __user
*arg)
policy.filenames_encryption_mode = ctx.filenames_encryption_mode;
policy.flags = ctx.flags;
memcpy(policy.master_key_descriptor, ctx.master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE);
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
if (copy_to_user(arg, &policy, sizeof(policy)))
return -EFAULT;
@@ -199,7 +199,7 @@ int fscrypt_has_permitted_context(struct inode *parent,
struct inode *child)
if (parent_ci && child_ci) {
return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+ FSCRYPT_KEY_DESCRIPTOR_SIZE) == 0 &&
(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
(parent_ci->ci_filename_mode ==
child_ci->ci_filename_mode) &&
@@ -216,7 +216,7 @@ int fscrypt_has_permitted_context(struct inode *parent,
struct inode *child)
return memcmp(parent_ctx.master_key_descriptor,
child_ctx.master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+ FSCRYPT_KEY_DESCRIPTOR_SIZE) == 0 &&
(parent_ctx.contents_encryption_mode ==
child_ctx.contents_encryption_mode) &&
(parent_ctx.filenames_encryption_mode ==
@@ -254,7 +254,7 @@ int fscrypt_inherit_context(struct inode *parent, struct
inode *child,
ctx.filenames_encryption_mode = ci->ci_filename_mode;
ctx.flags = ci->ci_flags;
memcpy(ctx.master_key_descriptor, ci->ci_master_key,
- FS_KEY_DESCRIPTOR_SIZE);
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
get_random_bytes(ctx.nonce, FS_KEY_DERIVATION_NONCE_SIZE);
BUILD_BUG_ON(sizeof(ctx) != FSCRYPT_SET_CONTEXT_MAX_SIZE);
res = parent->i_sb->s_cop->set_context(child, &ctx,
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index f7aa7d62e235..671ce57e4673 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -99,12 +99,12 @@ static inline bool fscrypt_dummy_context_enabled(struct
inode *inode)
static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
u32 filenames_mode)
{
- if (contents_mode == FS_ENCRYPTION_MODE_AES_128_CBC &&
- filenames_mode == FS_ENCRYPTION_MODE_AES_128_CTS)
+ if (contents_mode == FSCRYPT_MODE_AES_128_CBC &&
+ filenames_mode == FSCRYPT_MODE_AES_128_CTS)
return true;
- if (contents_mode == FS_ENCRYPTION_MODE_AES_256_XTS &&
- filenames_mode == FS_ENCRYPTION_MODE_AES_256_CTS)
+ if (contents_mode == FSCRYPT_MODE_AES_256_XTS &&
+ filenames_mode == FSCRYPT_MODE_AES_256_CTS)
return true;
return false;
--
2.15.0.rc0.271.g36b669edcc-goog
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