From: Eric Biggers <ebiggers@xxxxxxxxxx>
This new ioctl retrieves a file's encryption nonce, which is useful for
testing. See the corresponding fs/crypto/ patch for more details.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
fs/f2fs/file.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 0d4da644df3bc..351762f778405 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2423,6 +2423,14 @@ static int f2fs_ioc_get_encryption_key_status(struct file *filp,
return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
}
+static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
+}
+
static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
@@ -3437,6 +3445,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
return f2fs_ioc_get_encryption_key_status(filp, arg);
+ case FS_IOC_GET_ENCRYPTION_NONCE:
+ return f2fs_ioc_get_encryption_nonce(filp, arg);
case F2FS_IOC_GARBAGE_COLLECT:
return f2fs_ioc_gc(filp, arg);
case F2FS_IOC_GARBAGE_COLLECT_RANGE:
@@ -3611,6 +3621,7 @@ long f2fs_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 F2FS_IOC_GARBAGE_COLLECT:
case F2FS_IOC_GARBAGE_COLLECT_RANGE:
case F2FS_IOC_WRITE_CHECKPOINT:
--
2.25.1
