6/6/2023 12:40 PM, Mickaël Salaün пишет:

On 06/06/2023 11:10, Konstantin Meskhidze (A) wrote:

quoted

6/5/2023 6:02 PM, Mickaël Salaün пишет:

quoted

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?

quoted

   Regards,
      Konstantin.

quoted

On 15/05/2023 18:13, Konstantin Meskhidze wrote:

quoted

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/ (local)
v9: https://lore.kernel.org/linux-security-module/20230116085818.165539-1-konstantin.meskhidze@huawei.com/ (local)
v8: https://lore.kernel.org/linux-security-module/20221021152644.155136-1-konstantin.meskhidze@huawei.com/ (local)
v7: https://lore.kernel.org/linux-security-module/20220829170401.834298-1-konstantin.meskhidze@huawei.com/ (local)
v6: https://lore.kernel.org/linux-security-module/20220621082313.3330667-1-konstantin.meskhidze@huawei.com/ (local)
v5: https://lore.kernel.org/linux-security-module/20220516152038.39594-1-konstantin.meskhidze@huawei.com (local)
v4: https://lore.kernel.org/linux-security-module/20220309134459.6448-1-konstantin.meskhidze@huawei.com/ (local)
v3: https://lore.kernel.org/linux-security-module/20220124080215.265538-1-konstantin.meskhidze@huawei.com/ (local)
v2: https://lore.kernel.org/linux-security-module/20211228115212.703084-1-konstantin.meskhidze@huawei.com/ (local)
v1: https://lore.kernel.org/linux-security-module/20211210072123.386713-1-konstantin.meskhidze@huawei.com/ (local)

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

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2.25.1

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