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| author | Eric Biggers <ebiggers@google.com> | 2019-08-04 19:35:48 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2019-08-12 19:18:50 -0700 |
| commit | 29b3692e6dbf82266ec3c2764c236f8708d7fc89 (patch) | |
| tree | 984c157afd0e2d1491c7aab26c9e13b8934ea905 | |
| parent | 5ab7189a31bad40e4b44020cae6e56c8074721a1 (diff) | |
| download | blackbird-op-linux-29b3692e6dbf82266ec3c2764c236f8708d7fc89.tar.gz blackbird-op-linux-29b3692e6dbf82266ec3c2764c236f8708d7fc89.zip | |
ext4: wire up new fscrypt ioctls
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 ext4_drop_inode() call
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 <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
| -rw-r--r-- | fs/ext4/ioctl.c | 30 | ||||
| -rw-r--r-- | fs/ext4/super.c | 3 |
2 files changed, 33 insertions, 0 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 442f7ef873fc..fe5a4b13f939 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -1115,6 +1115,31 @@ resizefs_out: case EXT4_IOC_GET_ENCRYPTION_POLICY: return fscrypt_ioctl_get_policy(filp, (void __user *)arg); + case FS_IOC_GET_ENCRYPTION_POLICY_EX: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg); + + case FS_IOC_ADD_ENCRYPTION_KEY: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_add_key(filp, (void __user *)arg); + + case FS_IOC_REMOVE_ENCRYPTION_KEY: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_remove_key(filp, (void __user *)arg); + + case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_remove_key_all_users(filp, + (void __user *)arg); + case FS_IOC_GET_ENCRYPTION_KEY_STATUS: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); + case EXT4_IOC_FSGETXATTR: { struct fsxattr fa; @@ -1231,6 +1256,11 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case EXT4_IOC_SET_ENCRYPTION_POLICY: case EXT4_IOC_GET_ENCRYPTION_PWSALT: case EXT4_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: case EXT4_IOC_SHUTDOWN: case FS_IOC_GETFSMAP: break; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 4079605d437a..757819139b8f 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1107,6 +1107,9 @@ static int ext4_drop_inode(struct inode *inode) { int drop = generic_drop_inode(inode); + if (!drop) + drop = fscrypt_drop_inode(inode); + trace_ext4_drop_inode(inode, drop); return drop; } |
