Hi, This is a new V8 patch related to Landlock LSM network confinement. It is based on the landlock's -next branch on top of v6.1-rc1 kernel version: https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/log/?h=next It brings refactoring of previous patch version V7. Mostly there are minor fixes of logic and typos. All test were run in QEMU evironment and compiled with -static flag. 1. network_test: 18/18 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: 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 (12): landlock: Make ruleset's access masks more generic landlock: Refactor landlock_find_rule/insert_rule landlock: Refactor merge/inherit_ruleset functions landlock: Move unmask_layers() and init_layer_masks() landlock: Refactor unmask_layers() and init_layer_masks() landlock: Refactor landlock_add_rule() syscall landlock: Add network rules support landlock: Implement TCP network hooks 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 Documentation/userspace-api/landlock.rst | 72 +- include/uapi/linux/landlock.h | 49 ++ samples/landlock/sandboxer.c | 129 ++- security/landlock/Kconfig | 1 + security/landlock/Makefile | 2 + security/landlock/fs.c | 168 +--- security/landlock/limits.h | 7 +- security/landlock/net.c | 164 ++++ security/landlock/net.h | 26 + security/landlock/ruleset.c | 412 ++++++++-- security/landlock/ruleset.h | 176 +++- 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 | 75 +- tools/testing/selftests/landlock/net_test.c | 823 +++++++++++++++++++ 18 files changed, 1972 insertions(+), 313 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
