Hi, This is a new V7 patch related to Landlock LSM network confinement. It is based on the landlock's -next branch on top of v5.19 kernel version: https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/log/?h=next It brings refactoring of previous patch version V6 and based on Mickaёl's two commits in -tmp-net branch: https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/commit/?id=8f4104b3dc59e7f110c9b83cdf034d010a2d006f https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/commit/?id=7d6cf40a6f81adf607ad3cc17aaa11e256beeea4 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: 61/61 tests passed. 4. ptrace_test: 8/8 tests passed. LCOV - code coverage report: Hit Total Coverage Lines: 952 1010 94.2 % Functions: 79 82 96.3 % Previous versions: 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 (18): landlock: rename access mask landlock: refactor landlock_find_rule/insert_rule landlock: refactor merge/inherit_ruleset functions landlock: move helper functions landlock: refactor helper functions landlock: refactor landlock_add_rule syscall landlock: user space API network support landlock: add network rules support landlock: implement TCP network hooks seltests/landlock: move helper function seltests/landlock: add tests for bind() hooks seltests/landlock: add tests for connect() hooks seltests/landlock: add AF_UNSPEC family test seltests/landlock: add rules overlapping test seltests/landlock: add ruleset expanding test seltests/landlock: add invalid input data test samples/landlock: add network demo landlock: Document Landlock's network support Documentation/userspace-api/landlock.rst | 84 ++- include/uapi/linux/landlock.h | 49 ++ samples/landlock/sandboxer.c | 123 ++- security/landlock/Kconfig | 1 + security/landlock/Makefile | 2 + security/landlock/fs.c | 144 +--- security/landlock/limits.h | 7 +- security/landlock/net.c | 161 ++++ security/landlock/net.h | 26 + security/landlock/ruleset.c | 369 +++++++-- security/landlock/ruleset.h | 136 +++- security/landlock/setup.c | 2 + security/landlock/syscalls.c | 168 +++-- tools/testing/selftests/landlock/common.h | 10 + tools/testing/selftests/landlock/config | 4 + tools/testing/selftests/landlock/fs_test.c | 10 - tools/testing/selftests/landlock/net_test.c | 786 ++++++++++++++++++++ 17 files changed, 1796 insertions(+), 286 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
