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.
FS_IOC_REMOVE_ENCRYPTION_KEY also required making UBIFS use
fscrypt_drop_inode().
For more details see Documentation/filesystems/fscrypt.rst, as well as
the fscrypt patches that added the implementation of these ioctls.
Signed-off-by: Eric Biggers <ebigg...@google.com>
---
fs/ubifs/ioctl.c | 23 +++++++++++++++++------
fs/ubifs/super.c | 11 +++++++++++
2 files changed, 28 insertions(+), 6 deletions(-)
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index 82e4e6a30b044..3c640a7e937f4 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -205,13 +205,20 @@ long ubifs_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
return -EOPNOTSUPP;
#endif
}
- case FS_IOC_GET_ENCRYPTION_POLICY: {
-#ifdef CONFIG_FS_ENCRYPTION
+ case FS_IOC_GET_ENCRYPTION_POLICY:
return fscrypt_ioctl_get_policy(file, (void __user *)arg);
-#else
- return -EOPNOTSUPP;
-#endif
- }
+
+ 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, (const void __user *)arg);
+
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ return fscrypt_ioctl_get_key_status(file, (void __user *)arg);
default:
return -ENOTTY;
@@ -230,6 +237,10 @@ 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_GET_ENCRYPTION_KEY_STATUS:
break;
default:
return -ENOIOCTLCMD;
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 8dc2818fdd849..cd4a3e2be2043 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -334,6 +334,16 @@ 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;
@@ -1982,6 +1992,7 @@ const struct super_operations ubifs_super_operations = {
.destroy_inode = ubifs_destroy_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,
--
2.21.0
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