From: Eric Biggers <ebigg...@google.com>
Wire up the new ioctls for adding and removing fscrypt keys to/from the
filesystem, and the new ioctl for retrieving v2 encryption policies.
The key removal ioctls also required making UBIFS use
fscrypt_drop_inode().
For more details see Documentation/filesystems/fscrypt.rst and the
fscrypt patches that added the implementation of these ioctls.
Reviewed-by: Theodore Ts'o <ty...@mit.edu>
Signed-off-by: Eric Biggers <ebigg...@google.com>
---
fs/ubifs/ioctl.c | 20 ++++++++++++++++++++
fs/ubifs/super.c | 11 +++++++++++
2 files changed, 31 insertions(+)
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index 034ad14710d14a..5dc5abca11c704 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -185,6 +185,21 @@ long ubifs_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
case FS_IOC_GET_ENCRYPTION_POLICY:
return fscrypt_ioctl_get_policy(file, (void __user *)arg);
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ return fscrypt_ioctl_get_policy_ex(file, (void __user *)arg);
+
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ return fscrypt_ioctl_add_key(file, (void __user *)arg);
+
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ return fscrypt_ioctl_remove_key(file, (void __user *)arg);
+
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ return fscrypt_ioctl_remove_key_all_users(file,
+ (void __user *)arg);
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ return fscrypt_ioctl_get_key_status(file, (void __user *)arg);
+
default:
return -ENOTTY;
}
@@ -202,6 +217,11 @@ long ubifs_compat_ioctl(struct file *file, unsigned int
cmd, unsigned long arg)
break;
case FS_IOC_SET_ENCRYPTION_POLICY:
case FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
break;
default:
return -ENOIOCTLCMD;
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 2c0803b0ac3aa2..3ad6620f14fb81 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -318,6 +318,16 @@ static int ubifs_write_inode(struct inode *inode, struct
writeback_control *wbc)
return err;
}
+static int ubifs_drop_inode(struct inode *inode)
+{
+ int drop = generic_drop_inode(inode);
+
+ if (!drop)
+ drop = fscrypt_drop_inode(inode);
+
+ return drop;
+}
+
static void ubifs_evict_inode(struct inode *inode)
{
int err;
@@ -1990,6 +2000,7 @@ const struct super_operations ubifs_super_operations = {
.free_inode = ubifs_free_inode,
.put_super = ubifs_put_super,
.write_inode = ubifs_write_inode,
+ .drop_inode = ubifs_drop_inode,
.evict_inode = ubifs_evict_inode,
.statfs = ubifs_statfs,
.dirty_inode = ubifs_dirty_inode,
--
2.22.0.770.g0f2c4a37fd-goog
