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authorTyler Hicks <tyhicks@canonical.com>2012-01-14 16:46:46 +0100
committerTyler Hicks <tyhicks@canonical.com>2012-01-25 14:43:40 -0600
commit48399c0b0e6172888a2e2e36df1595ab1e049ba8 (patch)
tree7fb94f7ce80de13fd419e69322d9e6b157a49f91 /fs/ecryptfs/ecryptfs_kernel.h
parent7f133504249afa48618becac546ce3c35c9f0185 (diff)
downloadtalos-obmc-linux-48399c0b0e6172888a2e2e36df1595ab1e049ba8.tar.gz
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eCryptfs: Replace miscdev read/write magic numbers
ecryptfs_miscdev_read() and ecryptfs_miscdev_write() contained many magic numbers for specifying packet header field sizes and offsets. This patch defines those values and replaces the magic values. Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Diffstat (limited to 'fs/ecryptfs/ecryptfs_kernel.h')
-rw-r--r--fs/ecryptfs/ecryptfs_kernel.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index a9f29b12fbf2..a2362df58ae8 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -151,6 +151,11 @@ ecryptfs_get_key_payload_data(struct key *key)
* dentry name */
#define ECRYPTFS_TAG_73_PACKET_TYPE 0x49 /* FEK-encrypted filename as
* metadata */
+#define ECRYPTFS_MIN_PKT_LEN_SIZE 1 /* Min size to specify packet length */
+#define ECRYPTFS_MAX_PKT_LEN_SIZE 2 /* Pass at least this many bytes to
+ * ecryptfs_parse_packet_length() and
+ * ecryptfs_write_packet_length()
+ */
/* Constraint: ECRYPTFS_FILENAME_MIN_RANDOM_PREPEND_BYTES >=
* ECRYPTFS_MAX_IV_BYTES */
#define ECRYPTFS_FILENAME_MIN_RANDOM_PREPEND_BYTES 16
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