2020-01-28 19:26:00

by Eric Biggers

Subject: [man-pages PATCH v2] statx.2: document STATX_ATTR_VERITY

From: Eric Biggers <[email protected]>

Document the verity attribute for statx(), which was added in
Linux 5.5.

For more context, see the fs-verity documentation:
https://www.kernel.org/doc/html/latest/filesystems/fsverity.html

Signed-off-by: Eric Biggers <[email protected]>
---
man2/statx.2 | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/man2/statx.2 b/man2/statx.2
index d2f1b07b8..d015ee73d 100644
--- a/man2/statx.2
+++ b/man2/statx.2
@@ -461,6 +461,11 @@ See
.TP
.B STATX_ATTR_ENCRYPTED
A key is required for the file to be encrypted by the filesystem.
+.TP
+.B STATX_ATTR_VERITY
+Since Linux 5.5: the file has fs-verity enabled. It cannot be written to, and
+all reads from it will be verified against a cryptographic hash that covers the
+entire file, e.g. via a Merkle tree.
.SH RETURN VALUE
On success, zero is returned.
On error, \-1 is returned, and
--
2.25.0.341.g760bfbb309-goog

2020-02-24 20:51:09

by Eric Biggers

Subject: Re: [man-pages PATCH v2] statx.2: document STATX_ATTR_VERITY

On Tue, Jan 28, 2020 at 11:24:49AM -0800, Eric Biggers wrote:
> From: Eric Biggers <[email protected]>
>
> Document the verity attribute for statx(), which was added in
> Linux 5.5.
>
> For more context, see the fs-verity documentation:
> https://www.kernel.org/doc/html/latest/filesystems/fsverity.html
>
> Signed-off-by: Eric Biggers <[email protected]>
> ---
> man2/statx.2 | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/man2/statx.2 b/man2/statx.2
> index d2f1b07b8..d015ee73d 100644
> --- a/man2/statx.2
> +++ b/man2/statx.2
> @@ -461,6 +461,11 @@ See
> .TP
> .B STATX_ATTR_ENCRYPTED
> A key is required for the file to be encrypted by the filesystem.
> +.TP
> +.B STATX_ATTR_VERITY
> +Since Linux 5.5: the file has fs-verity enabled. It cannot be written to, and
> +all reads from it will be verified against a cryptographic hash that covers the
> +entire file, e.g. via a Merkle tree.
> .SH RETURN VALUE
> On success, zero is returned.
> On error, \-1 is returned, and
> --
> 2.25.0.341.g760bfbb309-goog
>

Ping? Michael, can you apply this man-pages patch?

- Eric

2020-03-12 08:27:22

by Michael Kerrisk (man-pages)

Subject: Re: [man-pages PATCH v2] statx.2: document STATX_ATTR_VERITY

Hello Eric,

On 1/28/20 8:24 PM, Eric Biggers wrote:
> From: Eric Biggers <[email protected]>
>
> Document the verity attribute for statx(), which was added in
> Linux 5.5.
>
> For more context, see the fs-verity documentation:
> https://www.kernel.org/doc/html/latest/filesystems/fsverity.html

Thanks for the patch! Applied.

Cheers,

Michael

> Signed-off-by: Eric Biggers <[email protected]>
> ---
> man2/statx.2 | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/man2/statx.2 b/man2/statx.2
> index d2f1b07b8..d015ee73d 100644
> --- a/man2/statx.2
> +++ b/man2/statx.2
> @@ -461,6 +461,11 @@ See
> .TP
> .B STATX_ATTR_ENCRYPTED
> A key is required for the file to be encrypted by the filesystem.
> +.TP
> +.B STATX_ATTR_VERITY
> +Since Linux 5.5: the file has fs-verity enabled. It cannot be written to, and
> +all reads from it will be verified against a cryptographic hash that covers the
> +entire file, e.g. via a Merkle tree.
> .SH RETURN VALUE
> On success, zero is returned.
> On error, \-1 is returned, and
>


--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/