eCryptfs: Replace miscdev read/write magic numbers
Tyler Hicks authored

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: default avatarTyler Hicks <tyhicks@canonical.com>
48399c0b