[v11,00/12] Network support for Landlock

Message

Konstantin Meskhidze (A) May 15, 2023, 4:13 p.m. UTC

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/[e-mail]/
v9: https://lore.kernel.org/linux-security-module/[e-mail]/
v8: https://lore.kernel.org/linux-security-module/[e-mail]/
v7: https://lore.kernel.org/linux-security-module/[e-mail]/
v6: https://lore.kernel.org/linux-security-module/[e-mail]/
v5: https://lore.kernel.org/linux-security-module/[e-mail]
v4: https://lore.kernel.org/linux-security-module/[e-mail]/
v3: https://lore.kernel.org/linux-security-module/[e-mail]/
v2: https://lore.kernel.org/linux-security-module/[e-mail]/
v1: https://lore.kernel.org/linux-security-module/[e-mail]/

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

Comments

Mickaël Salaün June 5, 2023, 3:02 p.m. UTC | #1

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


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/[e-mail]/
> v9: https://lore.kernel.org/linux-security-module/[e-mail]/
> v8: https://lore.kernel.org/linux-security-module/[e-mail]/
> v7: https://lore.kernel.org/linux-security-module/[e-mail]/
> v6: https://lore.kernel.org/linux-security-module/[e-mail]/
> v5: https://lore.kernel.org/linux-security-module/[e-mail]
> v4: https://lore.kernel.org/linux-security-module/[e-mail]/
> v3: https://lore.kernel.org/linux-security-module/[e-mail]/
> v2: https://lore.kernel.org/linux-security-module/[e-mail]/
> v1: https://lore.kernel.org/linux-security-module/[e-mail]/
> 
> 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
>

Konstantin Meskhidze (A) June 6, 2023, 9:10 a.m. UTC | #2

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.

  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/[e-mail]/
>> v9: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v8: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v7: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v6: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v5: https://lore.kernel.org/linux-security-module/[e-mail]
>> v4: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v3: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v2: https://lore.kernel.org/linux-security-module/[e-mail]/
>> v1: https://lore.kernel.org/linux-security-module/[e-mail]/
>> 
>> 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
>> 
> .

Mickaël Salaün June 6, 2023, 9:40 a.m. UTC | #3

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.


> 
>    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/[e-mail]/
>>> v9: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v8: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v7: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v6: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v5: https://lore.kernel.org/linux-security-module/[e-mail]
>>> v4: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v3: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v2: https://lore.kernel.org/linux-security-module/[e-mail]/
>>> v1: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>
>>> 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
>>>
>> .

Konstantin Meskhidze (A) June 19, 2023, 2:28 p.m. UTC | #4

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?
> 
> 
>> 
>>    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/[e-mail]/
>>>> v9: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v8: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v7: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v6: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v5: https://lore.kernel.org/linux-security-module/[e-mail]
>>>> v4: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v3: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v2: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>> v1: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>
>>>> 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
>>>>
>>> .
> .

Mickaël Salaün June 19, 2023, 6:23 p.m. UTC | #5

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 [e-mail]: 
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/[e-mail]/
>>>>> v9: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v8: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v7: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v6: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v5: https://lore.kernel.org/linux-security-module/[e-mail]
>>>>> v4: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v3: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v2: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>> v1: https://lore.kernel.org/linux-security-module/[e-mail]/
>>>>>
>>>>> 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
>>>>>
>>>> .
>> .