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| author |   Eric Biggers <ebiggers@google.com> | 2020-03-14 13:50:50 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2020-03-19 21:56:59 -0700 |
| commit | 7ec9f3b47aba0fe715bf3472ed80e91c37970363 (patch) | |
| tree | 8175e5cac24808734fb7fd7350590c2b58dc089d /fs/ext4 | |
| parent | fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl (diff) | |
| download | wireguard-linux-7ec9f3b47aba0fe715bf3472ed80e91c37970363.tar.xz wireguard-linux-7ec9f3b47aba0fe715bf3472ed80e91c37970363.zip | |
ext4: wire up FS_IOC_GET_ENCRYPTION_NONCE
This new ioctl retrieves a file's encryption nonce, which is useful for
testing. See the corresponding fs/crypto/ patch for more details.
Link: https://lore.kernel.org/r/20200314205052.93294-3-ebiggers@kernel.org
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ioctl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index a0ec750018dd..0c1d1720cf1a 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -1210,6 +1210,11 @@ resizefs_out: return -EOPNOTSUPP; return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); + case FS_IOC_GET_ENCRYPTION_NONCE: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_get_nonce(filp, (void __user *)arg); + case EXT4_IOC_CLEAR_ES_CACHE: { if (!inode_owner_or_capable(inode)) @@ -1370,6 +1375,7 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case FS_IOC_REMOVE_ENCRYPTION_KEY: case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: case FS_IOC_GET_ENCRYPTION_KEY_STATUS: + case FS_IOC_GET_ENCRYPTION_NONCE: case EXT4_IOC_SHUTDOWN: case FS_IOC_GETFSMAP: case FS_IOC_ENABLE_VERITY: |