Linux-Fsdevel Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Eric Biggers <ebiggers@kernel.org>
To: Jeff Layton <jlayton@kernel.org>
Cc: ceph-devel@vger.kernel.org, linux-fscrypt@vger.kernel.org,
	linux-fsdevel@vger.kernel.org
Subject: Re: [RFC PATCH v3 06/16] ceph: add fscrypt ioctls
Date: Mon, 14 Sep 2020 17:45:22 -0700	[thread overview]
Message-ID: <20200915004522.GF899@sol.localdomain> (raw)
In-Reply-To: <20200914191707.380444-7-jlayton@kernel.org>

On Mon, Sep 14, 2020 at 03:16:57PM -0400, Jeff Layton wrote:
> Boilerplate ioctls for controlling encryption.
> 
> Signed-off-by: Jeff Layton <jlayton@kernel.org>
> ---
>  fs/ceph/ioctl.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
> index 6e061bf62ad4..381e44b2d60a 100644
> --- a/fs/ceph/ioctl.c
> +++ b/fs/ceph/ioctl.c
> @@ -6,6 +6,7 @@
>  #include "mds_client.h"
>  #include "ioctl.h"
>  #include <linux/ceph/striper.h>
> +#include <linux/fscrypt.h>
>  
>  /*
>   * ioctls
> @@ -289,6 +290,30 @@ long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
>  
>  	case CEPH_IOC_SYNCIO:
>  		return ceph_ioctl_syncio(file);
> +
> +	case FS_IOC_SET_ENCRYPTION_POLICY:
> +		return fscrypt_ioctl_set_policy(file, (const void __user *)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);
> +
> +	case FS_IOC_GET_ENCRYPTION_NONCE:
> +		return fscrypt_ioctl_get_nonce(file, (void __user *)arg);

Will you be implementing an encryption feature flag for ceph, similar to what
ext4 and f2fs have?  E.g., ext4 doesn't allow these ioctls unless the filesystem
was formatted with '-O encrypt' (or 'tune2fs -O encrypt' was run later).  There
would be various problems if we didn't do that; for example, old versions of
e2fsck would consider encrypted directories to be corrupted.

- Eric

  reply	other threads:[~2020-09-15  0:45 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-14 19:16 [RFC PATCH v3 00/16] ceph+fscrypt: context, filename and symlink support Jeff Layton
2020-09-14 19:16 ` [RFC PATCH v3 01/16] vfs: export new_inode_pseudo Jeff Layton
2020-09-14 23:33   ` Eric Biggers
2020-09-23  3:41   ` Al Viro
2020-09-23 11:19     ` Jeff Layton
2020-09-14 19:16 ` [RFC PATCH v3 02/16] fscrypt: export fscrypt_base64_encode and fscrypt_base64_decode Jeff Layton
2020-09-14 23:44   ` Eric Biggers
2020-09-14 19:16 ` [RFC PATCH v3 03/16] fscrypt: export fscrypt_d_revalidate Jeff Layton
2020-09-15  0:04   ` Eric Biggers
2020-09-14 19:16 ` [RFC PATCH v3 04/16] fscrypt: add fscrypt_context_for_new_inode Jeff Layton
2020-09-15  0:15   ` Eric Biggers
2020-09-14 19:16 ` [RFC PATCH v3 05/16] fscrypt: make fscrypt_fname_disk_to_usr return whether result is nokey name Jeff Layton
2020-09-15  0:23   ` Eric Biggers
2020-09-14 19:16 ` [RFC PATCH v3 06/16] ceph: add fscrypt ioctls Jeff Layton
2020-09-15  0:45   ` Eric Biggers [this message]
2020-09-15 12:08     ` Jeff Layton
2020-09-14 19:16 ` [RFC PATCH v3 07/16] ceph: crypto context handling for ceph Jeff Layton
2020-09-15  1:00   ` Eric Biggers
2020-09-14 19:16 ` [RFC PATCH v3 08/16] ceph: implement -o test_dummy_encryption mount option Jeff Layton
2020-09-15  1:23   ` Eric Biggers
2020-09-16 12:49     ` Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 09/16] ceph: preallocate inode for ops that may create one Jeff Layton
2020-09-15  1:30   ` Eric Biggers
2020-09-16 12:41     ` Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 10/16] ceph: add routine to create context prior to RPC Jeff Layton
2020-09-15  1:37   ` Eric Biggers
2020-09-16 12:18     ` Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 11/16] ceph: make ceph_msdc_build_path use ref-walk Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 12/16] ceph: add encrypted fname handling to ceph_mdsc_build_path Jeff Layton
2020-09-15  1:41   ` Eric Biggers
2020-09-16 12:30     ` Jeff Layton
2020-09-16 17:36       ` Eric Biggers
2020-09-16 18:04         ` Jeff Layton
2020-09-16 18:42           ` Eric Biggers
2020-09-14 19:17 ` [RFC PATCH v3 13/16] ceph: make d_revalidate call fscrypt revalidator for encrypted dentries Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 14/16] ceph: add support to readdir for encrypted filenames Jeff Layton
2020-09-15  1:57   ` Eric Biggers
2020-09-15 13:27     ` Jeff Layton
2020-09-15 20:40       ` Eric Biggers
2020-09-16 12:16         ` Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 15/16] ceph: add fscrypt support to ceph_fill_trace Jeff Layton
2020-09-14 19:17 ` [RFC PATCH v3 16/16] ceph: create symlinks with encrypted and base64-encoded targets Jeff Layton
2020-09-15  2:07   ` Eric Biggers
2020-09-15 14:05     ` Jeff Layton
2020-09-15 20:49       ` Eric Biggers
2020-09-16 12:15         ` Jeff Layton
2020-09-15  2:13 ` [RFC PATCH v3 00/16] ceph+fscrypt: context, filename and symlink support Eric Biggers
2020-09-15 13:38   ` Jeff Layton

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200915004522.GF899@sol.localdomain \
    --to=ebiggers@kernel.org \
    --cc=ceph-devel@vger.kernel.org \
    --cc=jlayton@kernel.org \
    --cc=linux-fscrypt@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --subject='Re: [RFC PATCH v3 06/16] ceph: add fscrypt ioctls' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).