[PATCH v11 00/12] Network support for Landlock

[Mickaël Salaün]

On 19/06/2023 16:28, Konstantin Meskhidze (A) wrote:
> 
> 
> 6/6/2023 12:40 PM, Mickaël Salaün пишет:
>>
>> On 06/06/2023 11:10, Konstantin Meskhidze (A) wrote:
>>>
>>>
>>> 6/5/2023 6:02 PM, Mickaël Salaün пишет:
>>>> Hi Konstantin,
>>>>
>>>> The kernel code looks good. I found some issues in tests and
>>>> documentation, and I'm still reviewing the whole patches. In the
>>>> meantime, I've pushed it in -next, we'll see how it goes.
>>>>
>>>> We need to have this new code covered by syzkaller. I'll work on that
>>>> unless you want to.
>>>>
>>>> Regards,
>>>>      Mickaël
>>>>
>>>      Hi, Mickaël!
>>>      I have never set up syzkaller. Do you have a syzkaller scenario for
>>> Landlock code? I need some hints. I will give it a shot.
>>
>> You can get a look at https://github.com/google/syzkaller/pull/3423 or
>> other Landlock-related PR.
>>
>> The setup might be a bit challenging though, but it will be a good
>> investment for future kernel changes.
> 
>     Thanks. I will handle it. Can you give me a hand with some tips if I
> have issues with syzkaller setup?

Yes, you can Cc me and send emails to syzkaller at googlegroups.com: 
https://groups.google.com/g/syzkaller




>>
>>
>>>
>>>     Regards,
>>>        Konstantin.
>>>>
>>>> On 15/05/2023 18:13, Konstantin Meskhidze wrote:
>>>>> Hi,
>>>>> This is a new V11 patch related to Landlock LSM network confinement.
>>>>> It is based on the landlock's -next branch on top of v6.2-rc3+ kernel version:
>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/log/?h=next
>>>>>
>>>>> It brings refactoring of previous patch version V10.
>>>>> Mostly there are fixes of logic and typos, refactoring some selftests.
>>>>>
>>>>> All test were run in QEMU evironment and compiled with
>>>>>     -static flag.
>>>>>     1. network_test: 36/36 tests passed.
>>>>>     2. base_test: 7/7 tests passed.
>>>>>     3. fs_test: 78/78 tests passed.
>>>>>     4. ptrace_test: 8/8 tests passed.
>>>>>
>>>>> Previous versions:
>>>>> v10: https://lore.kernel.org/linux-security-module/20230323085226.1432550-1-konstantin.meskhidze@huawei.com/
>>>>> v9: https://lore.kernel.org/linux-security-module/20230116085818.165539-1-konstantin.meskhidze@huawei.com/
>>>>> v8: https://lore.kernel.org/linux-security-module/20221021152644.155136-1-konstantin.meskhidze@huawei.com/
>>>>> v7: https://lore.kernel.org/linux-security-module/20220829170401.834298-1-konstantin.meskhidze@huawei.com/
>>>>> v6: https://lore.kernel.org/linux-security-module/20220621082313.3330667-1-konstantin.meskhidze@huawei.com/
>>>>> v5: https://lore.kernel.org/linux-security-module/20220516152038.39594-1-konstantin.meskhidze@huawei.com
>>>>> v4: https://lore.kernel.org/linux-security-module/20220309134459.6448-1-konstantin.meskhidze@huawei.com/
>>>>> v3: https://lore.kernel.org/linux-security-module/20220124080215.265538-1-konstantin.meskhidze@huawei.com/
>>>>> v2: https://lore.kernel.org/linux-security-module/20211228115212.703084-1-konstantin.meskhidze@huawei.com/
>>>>> v1: https://lore.kernel.org/linux-security-module/20211210072123.386713-1-konstantin.meskhidze@huawei.com/
>>>>>
>>>>> Konstantin Meskhidze (11):
>>>>>      landlock: Make ruleset's access masks more generic
>>>>>      landlock: Refactor landlock_find_rule/insert_rule
>>>>>      landlock: Refactor merge/inherit_ruleset functions
>>>>>      landlock: Move and rename layer helpers
>>>>>      landlock: Refactor layer helpers
>>>>>      landlock: Refactor landlock_add_rule() syscall
>>>>>      landlock: Add network rules and TCP hooks support
>>>>>      selftests/landlock: Share enforce_ruleset()
>>>>>      selftests/landlock: Add 11 new test suites dedicated to network
>>>>>      samples/landlock: Add network demo
>>>>>      landlock: Document Landlock's network support
>>>>>
>>>>> Mickaël Salaün (1):
>>>>>      landlock: Allow filesystem layout changes for domains without such
>>>>>        rule type
>>>>>
>>>>>     Documentation/userspace-api/landlock.rst     |   89 +-
>>>>>     include/uapi/linux/landlock.h                |   48 +
>>>>>     samples/landlock/sandboxer.c                 |  128 +-
>>>>>     security/landlock/Kconfig                    |    1 +
>>>>>     security/landlock/Makefile                   |    2 +
>>>>>     security/landlock/fs.c                       |  232 +--
>>>>>     security/landlock/limits.h                   |    7 +-
>>>>>     security/landlock/net.c                      |  174 +++
>>>>>     security/landlock/net.h                      |   26 +
>>>>>     security/landlock/ruleset.c                  |  405 +++++-
>>>>>     security/landlock/ruleset.h                  |  185 ++-
>>>>>     security/landlock/setup.c                    |    2 +
>>>>>     security/landlock/syscalls.c                 |  163 ++-
>>>>>     tools/testing/selftests/landlock/base_test.c |    2 +-
>>>>>     tools/testing/selftests/landlock/common.h    |   10 +
>>>>>     tools/testing/selftests/landlock/config      |    4 +
>>>>>     tools/testing/selftests/landlock/fs_test.c   |   74 +-
>>>>>     tools/testing/selftests/landlock/net_test.c  | 1317 ++++++++++++++++++
>>>>>     18 files changed, 2520 insertions(+), 349 deletions(-)
>>>>>     create mode 100644 security/landlock/net.c
>>>>>     create mode 100644 security/landlock/net.h
>>>>>     create mode 100644 tools/testing/selftests/landlock/net_test.c
>>>>>
>>>>> --
>>>>> 2.25.1
>>>>>
>>>> .
>> .