Hi, This is a new V9 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 V8. Mostly there are fixes of logic and typos, adding new tests. All test were run in QEMU evironment and compiled with -static flag. 1. network_test: 32/32 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: v8: https://lore.kernel.org/linux-security-module/20221021152644.155136-1-konstantin.meskhidze@xxxxxxxxxx/ v7: https://lore.kernel.org/linux-security-module/20220829170401.834298-1-konstantin.meskhidze@xxxxxxxxxx/ v6: https://lore.kernel.org/linux-security-module/20220621082313.3330667-1-konstantin.meskhidze@xxxxxxxxxx/ v5: https://lore.kernel.org/linux-security-module/20220516152038.39594-1-konstantin.meskhidze@xxxxxxxxxx v4: https://lore.kernel.org/linux-security-module/20220309134459.6448-1-konstantin.meskhidze@xxxxxxxxxx/ v3: https://lore.kernel.org/linux-security-module/20220124080215.265538-1-konstantin.meskhidze@xxxxxxxxxx/ v2: https://lore.kernel.org/linux-security-module/20211228115212.703084-1-konstantin.meskhidze@xxxxxxxxxx/ v1: https://lore.kernel.org/linux-security-module/20211210072123.386713-1-konstantin.meskhidze@xxxxxxxxxx/ 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 umask_layers() and init_layer_masks() landlock: Refactor _unmask_layers() and _init_layer_masks() landlock: Refactor landlock_add_rule() syscall landlock: Add network rules and TCP hooks support selftests/landlock: Share enforce_ruleset() selftests/landlock: Add 10 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 | 72 +- include/uapi/linux/landlock.h | 49 + samples/landlock/sandboxer.c | 131 +- security/landlock/Kconfig | 1 + security/landlock/Makefile | 2 + security/landlock/fs.c | 255 ++-- security/landlock/limits.h | 7 +- security/landlock/net.c | 200 +++ security/landlock/net.h | 26 + security/landlock/ruleset.c | 409 +++++-- security/landlock/ruleset.h | 185 ++- security/landlock/setup.c | 2 + security/landlock/syscalls.c | 165 ++- 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 | 75 +- tools/testing/selftests/landlock/net_test.c | 1157 ++++++++++++++++++ 18 files changed, 2398 insertions(+), 354 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
