From: Roberto Sassu <roberto.sassu@huawei.com>
To: "zohar@linux.ibm.com" <zohar@linux.ibm.com>,
"shuah@kernel.org" <shuah@kernel.org>,
"ast@kernel.org" <ast@kernel.org>,
"daniel@iogearbox.net" <daniel@iogearbox.net>,
"andrii@kernel.org" <andrii@kernel.org>,
"kpsingh@kernel.org" <kpsingh@kernel.org>,
"revest@chromium.org" <revest@chromium.org>
Cc: "linux-integrity@vger.kernel.org"
<linux-integrity@vger.kernel.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
"linux-kselftest@vger.kernel.org"
<linux-kselftest@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v2 0/6] bpf-lsm: Extend interoperability with IMA
Date: Fri, 18 Feb 2022 15:01:57 +0000 [thread overview]
Message-ID: <4513acbef98840199ff62124601cf455@huawei.com> (raw)
In-Reply-To: <20220215124042.186506-1-roberto.sassu@huawei.com>
> From: Roberto Sassu
> Sent: Tuesday, February 15, 2022 1:41 PM
> Extend the interoperability with IMA, to give wider flexibility for the
> implementation of integrity-focused LSMs based on eBPF.
>
> Patch 1 fixes some style issues.
>
> Patches 2-4 gives the ability to eBPF-based LSMs to take advantage of the
> measurement capability of IMA without needing to setup a policy in IMA
> (those LSMs might implement the policy capability themselves).
>
> Patches 5-6 allows eBPF-based LSMs to evaluate files read by the kernel.
Hi everyone
I published the new DIGLIM eBPF, that takes advantage of
the new features introduced with this patch set:
https://github.com/robertosassu/diglim-ebpf
the eBPF program is in ebpf/diglim_kern.c
If you could have a look and give me some comments
or suggestions, it would be very appreciated!
Thanks
Roberto
HUAWEI TECHNOLOGIES Duesseldorf GmbH, HRB 56063
Managing Director: Li Peng, Zhong Ronghua
> Changelog
>
> v1:
> - Modify ima_file_hash() only and allow the usage of the function with the
> modified behavior by eBPF-based LSMs through the new function
> bpf_ima_file_hash() (suggested by Mimi)
> - Make bpf_lsm_kernel_read_file() sleepable so that bpf_ima_inode_hash()
> and bpf_ima_file_hash() can be called inside the implementation of
> eBPF-based LSMs for this hook
>
> Roberto Sassu (6):
> ima: Fix documentation-related warnings in ima_main.c
> ima: Always return a file measurement in ima_file_hash()
> bpf-lsm: Introduce new helper bpf_ima_file_hash()
> selftests/bpf: Add test for bpf_ima_file_hash()
> bpf-lsm: Make bpf_lsm_kernel_read_file() as sleepable
> selftests/bpf: Add test for bpf_lsm_kernel_read_file()
>
> include/uapi/linux/bpf.h | 11 +++++
> kernel/bpf/bpf_lsm.c | 21 +++++++++
> security/integrity/ima/ima_main.c | 47 ++++++++++++-------
> tools/include/uapi/linux/bpf.h | 11 +++++
> tools/testing/selftests/bpf/ima_setup.sh | 2 +
> .../selftests/bpf/prog_tests/test_ima.c | 30 ++++++++++--
> tools/testing/selftests/bpf/progs/ima.c | 34 ++++++++++++--
> 7 files changed, 132 insertions(+), 24 deletions(-)
>
> --
> 2.32.0
next prev parent reply other threads:[~2022-02-18 15:02 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 12:40 [PATCH v2 0/6] bpf-lsm: Extend interoperability with IMA Roberto Sassu
2022-02-15 12:40 ` [PATCH v2 1/6] ima: Fix documentation-related warnings in ima_main.c Roberto Sassu
2022-02-15 15:46 ` Shuah Khan
2022-02-15 15:58 ` Roberto Sassu
2022-02-15 12:40 ` [PATCH v2 2/6] ima: Always return a file measurement in ima_file_hash() Roberto Sassu
2022-02-15 12:40 ` [PATCH v2 3/6] bpf-lsm: Introduce new helper bpf_ima_file_hash() Roberto Sassu
2022-02-15 17:02 ` Yonghong Song
2022-02-15 17:04 ` Roberto Sassu
2022-02-15 12:40 ` [PATCH v2 4/6] selftests/bpf: Add test for bpf_ima_file_hash() Roberto Sassu
2022-02-15 16:00 ` Shuah Khan
2022-02-15 12:40 ` [PATCH v2 5/6] bpf-lsm: Make bpf_lsm_kernel_read_file() as sleepable Roberto Sassu
2022-02-15 12:40 ` [PATCH v2 6/6] selftests/bpf: Add test for bpf_lsm_kernel_read_file() Roberto Sassu
2022-02-15 16:11 ` Shuah Khan
2022-02-15 16:20 ` Roberto Sassu
2022-02-18 15:01 ` Roberto Sassu [this message]
2022-02-25 0:22 ` [PATCH v2 0/6] bpf-lsm: Extend interoperability with IMA Mimi Zohar
2022-02-25 8:41 ` Roberto Sassu
2022-02-25 19:11 ` Mimi Zohar
2022-02-26 8:07 ` Greg Kroah-Hartman
2022-02-27 17:46 ` Mimi Zohar
2022-02-28 9:07 ` Roberto Sassu
2022-02-28 9:12 ` Roberto Sassu
2022-02-28 10:43 ` Greg Kroah-Hartman
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