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Date: Tue, 2 Apr 2019 08:45:59 -0700 From: Eric Biggers <ebiggers@...nel.org> To: linux-fscrypt@...r.kernel.org Cc: linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, linux-mtd@...ts.infradead.org, linux-api@...r.kernel.org, linux-crypto@...r.kernel.org, keyrings@...r.kernel.org, Paul Crowley <paulcrowley@...gle.com>, Satya Tangirala <satyat@...gle.com> Subject: [PATCH v4 16/17] ubifs: wire up new fscrypt ioctls From: Eric Biggers <ebiggers@...gle.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 <ebiggers@...gle.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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