From: Roberto Sassu <roberto.sassu@huaweicloud.com>
To: Jarkko Sakkinen <jarkko@kernel.org>
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
martin.lau@linux.dev, song@kernel.org, yhs@fb.com,
john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
haoluo@google.com, jolsa@kernel.org, mykolal@fb.com,
dhowells@redhat.com, rostedt@goodmis.org, mingo@redhat.com,
paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com,
shuah@kernel.org, bpf@vger.kernel.org, keyrings@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
deso@posteo.net, memxor@gmail.com,
Roberto Sassu <roberto.sassu@huawei.com>
Subject: Re: [PATCH v16 05/12] KEYS: Move KEY_LOOKUP_ to include/linux/key.h and define KEY_LOOKUP_ALL
Date: Tue, 06 Sep 2022 09:08:23 +0200 [thread overview]
Message-ID: <394ed3b5f96afd3cf39e99675be1a32c89c8080d.camel@huaweicloud.com> (raw)
In-Reply-To: <YxZsbLIAcR4/bScc@kernel.org>
On Tue, 2022-09-06 at 00:38 +0300, Jarkko Sakkinen wrote:
> On Mon, Sep 05, 2022 at 04:33:11PM +0200, Roberto Sassu wrote:
> > From: Roberto Sassu <roberto.sassu@huawei.com>
> >
> > In preparation for the patch that introduces the
> > bpf_lookup_user_key() eBPF
> > kfunc, move KEY_LOOKUP_ definitions to include/linux/key.h, to be
> > able to
> > validate the kfunc parameters. Add them to enum key_lookup_flag, so
> > that
> > all the current ones and the ones defined in the future are
> > automatically
> > exported through BTF and available to eBPF programs.
> >
> > Also, add KEY_LOOKUP_ALL to the enum, to facilitate checking
> > whether a
> > variable contains only defined flags.
> >
> > Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
> > Reviewed-by: KP Singh <kpsingh@kernel.org>
> > Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
>
> You should remove ack if there is any substantial change.
Yes, sorry. I thought you were fine with the change due to:
https://lore.kernel.org/bpf/YxF4H9MTDj+PnJ+V@kernel.org/
>
> > ---
> > include/linux/key.h | 6 ++++++
> > security/keys/internal.h | 2 --
> > 2 files changed, 6 insertions(+), 2 deletions(-)
> >
> > diff --git a/include/linux/key.h b/include/linux/key.h
> > index 7febc4881363..d84171f90cbd 100644
> > --- a/include/linux/key.h
> > +++ b/include/linux/key.h
> > @@ -88,6 +88,12 @@ enum key_need_perm {
> > KEY_DEFER_PERM_CHECK, /* Special: permission check is
> > deferred */
> > };
> >
> > +enum key_lookup_flag {
> > + KEY_LOOKUP_CREATE = 0x01, /* Create special keyrings if they
> > don't exist */
> > + KEY_LOOKUP_PARTIAL = 0x02, /* Permit partially constructed
> > keys to be found */
> > + KEY_LOOKUP_ALL = (KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL), /*
> > OR of previous flags */
>
> Drop the comments (should be reviewed separately + out of context).
The same style is used for many definitions in include/linux/key.h
No problem to remove them, please just let me know where they should
be. Often, eBPF maintainers asked me to add a description to the code
to explain how new definitions should be used.
Thanks
Roberto
next prev parent reply other threads:[~2022-09-06 7:09 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-05 14:33 [PATCH v16 00/12] bpf: Add kfuncs for PKCS#7 signature verification Roberto Sassu
2022-09-05 14:33 ` [PATCH v16 01/12] bpf: Allow kfuncs to be used in LSM programs Roberto Sassu
2022-09-06 2:28 ` Kumar Kartikeya Dwivedi
2022-09-05 14:33 ` [PATCH v16 02/12] bpf: Move dynptr type check to is_dynptr_type_expected() Roberto Sassu
2022-09-06 2:32 ` Kumar Kartikeya Dwivedi
2022-09-05 14:33 ` [PATCH v16 03/12] btf: Allow dynamic pointer parameters in kfuncs Roberto Sassu
2022-09-06 2:33 ` Kumar Kartikeya Dwivedi
2022-09-05 14:33 ` [PATCH v16 04/12] bpf: Export bpf_dynptr_get_size() Roberto Sassu
2022-09-06 2:33 ` Kumar Kartikeya Dwivedi
2022-09-06 3:06 ` Hou Tao
2022-09-05 14:33 ` [PATCH v16 05/12] KEYS: Move KEY_LOOKUP_ to include/linux/key.h and define KEY_LOOKUP_ALL Roberto Sassu
2022-09-05 21:38 ` Jarkko Sakkinen
2022-09-06 7:08 ` Roberto Sassu [this message]
2022-09-06 10:37 ` Jarkko Sakkinen
2022-09-06 11:04 ` Roberto Sassu
2022-09-06 11:43 ` Jarkko Sakkinen
2022-09-06 12:15 ` [PATCH v17 " Roberto Sassu
2022-09-06 12:26 ` Jarkko Sakkinen
2022-09-06 12:28 ` Roberto Sassu
2022-09-05 14:33 ` [PATCH v16 06/12] bpf: Add bpf_lookup_*_key() and bpf_key_put() kfuncs Roberto Sassu
2022-09-06 2:43 ` Kumar Kartikeya Dwivedi
2022-09-06 8:00 ` Roberto Sassu
2022-09-06 18:45 ` Alexei Starovoitov
2022-09-07 6:59 ` Roberto Sassu
2022-09-05 14:33 ` [PATCH v16 07/12] bpf: Add bpf_verify_pkcs7_signature() kfunc Roberto Sassu
2022-09-06 2:57 ` Kumar Kartikeya Dwivedi
2022-09-06 8:07 ` Roberto Sassu
2022-09-07 2:28 ` Kumar Kartikeya Dwivedi
2022-09-07 12:19 ` Roberto Sassu
2022-09-07 13:55 ` Kumar Kartikeya Dwivedi
2022-09-05 14:33 ` [PATCH v16 08/12] selftests/bpf: Compile kernel with everything as built-in Roberto Sassu
2022-09-06 3:01 ` Kumar Kartikeya Dwivedi
2022-09-05 14:33 ` [PATCH v16 09/12] selftests/bpf: Add verifier tests for bpf_lookup_*_key() and bpf_key_put() Roberto Sassu
2022-09-06 3:03 ` Kumar Kartikeya Dwivedi
2022-09-05 14:33 ` [PATCH v16 10/12] selftests/bpf: Add additional tests for bpf_lookup_*_key() Roberto Sassu
2022-09-05 14:33 ` [PATCH v16 11/12] selftests/bpf: Add test for bpf_verify_pkcs7_signature() kfunc Roberto Sassu
2022-09-05 14:33 ` [PATCH v16 12/12] selftests/bpf: Add tests for dynamic pointers parameters in kfuncs Roberto Sassu
2022-09-06 3:15 ` Kumar Kartikeya Dwivedi
2022-09-06 8:30 ` Roberto Sassu
2022-09-07 2:34 ` Kumar Kartikeya Dwivedi
2022-09-07 14:59 ` [PATCH v17 " Roberto Sassu
2022-09-07 16:02 ` Kumar Kartikeya Dwivedi
2022-09-05 19:26 ` [PATCH v16 00/12] bpf: Add kfuncs for PKCS#7 signature verification Kumar Kartikeya Dwivedi
2022-09-06 7:35 ` Roberto Sassu
2022-09-07 14:49 ` Roberto Sassu
2022-09-07 14:57 ` Kumar Kartikeya Dwivedi
2022-09-07 15:09 ` Roberto Sassu
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