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| author | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2010-02-11 00:02:32 -0600 |
|---|---|---|
| committer | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2010-03-23 12:31:35 -0500 |
| commit | f4e60e6b303bc46cdc477d3174dbf9cb5dd013aa (patch) | |
| tree | 36abefd614efd86f97ac812f57c86a583c7e484a /fs/ecryptfs/crypto.c | |
| parent | 1984c23f9e0cdb432d90a85ecf88b424d36878fc (diff) | |
| download | kernel_samsung_crespo-f4e60e6b303bc46cdc477d3174dbf9cb5dd013aa.zip kernel_samsung_crespo-f4e60e6b303bc46cdc477d3174dbf9cb5dd013aa.tar.gz kernel_samsung_crespo-f4e60e6b303bc46cdc477d3174dbf9cb5dd013aa.tar.bz2 | |
eCryptfs: Strip metadata in xattr flag in encrypted view
The ecryptfs_encrypted_view mount option provides a unified way of
viewing encrypted eCryptfs files. If the metadata is stored in a xattr,
the metadata is moved to the file header when the file is read inside
the eCryptfs mount. Because of this, we should strip the
ECRYPTFS_METADATA_IN_XATTR flag from the header's flag section. This
allows eCryptfs to treat the file as an eCryptfs file with a header
at the front.
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ecryptfs/crypto.c')
| -rw-r--r-- | fs/ecryptfs/crypto.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index 4d9db0e..fad5bf6 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1107,9 +1107,9 @@ static void write_ecryptfs_marker(char *page_virt, size_t *written) (*written) = MAGIC_ECRYPTFS_MARKER_SIZE_BYTES; } -static void -write_ecryptfs_flags(char *page_virt, struct ecryptfs_crypt_stat *crypt_stat, - size_t *written) +void ecryptfs_write_crypt_stat_flags(char *page_virt, + struct ecryptfs_crypt_stat *crypt_stat, + size_t *written) { u32 flags = 0; int i; @@ -1290,7 +1290,8 @@ static int ecryptfs_write_headers_virt(char *page_virt, size_t max, offset = ECRYPTFS_FILE_SIZE_BYTES; write_ecryptfs_marker((page_virt + offset), &written); offset += written; - write_ecryptfs_flags((page_virt + offset), crypt_stat, &written); + ecryptfs_write_crypt_stat_flags((page_virt + offset), crypt_stat, + &written); offset += written; ecryptfs_write_header_metadata((page_virt + offset), crypt_stat, &written); |