Hi, This is a new V6 patch related to Landlock LSM network confinement. It is based on the latest landlock-wip branch on top of v5.19-rc2: https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/log/?h=landlock-wip It brings refactoring of previous patch version V5: - Fixes some logic errors and typos. - Adds additional FIXTURE_VARIANT and FIXTURE_VARIANT_ADD helpers to support both ip4 and ip6 families and shorten seltests' code. - Makes TCP sockets confinement support optional in sandboxer demo. - Formats the code with clang-format-14 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: 59/59 tests passed. 4. ptrace_test: 8/8 tests passed. Still have issue with base_test were compiled without -static flag (landlock-wip branch without network support) 1. base_test: 6/7 tests passed. Error: # RUN global.inconsistent_attr ... # base_test.c:54:inconsistent_attr:Expected ENOMSG (42) == errno (22) # inconsistent_attr: Test terminated by assertion # FAIL global.inconsistent_attr not ok 1 global.inconsistent_attr LCOV - code coverage report: Hit Total Coverage Lines: 952 1010 94.3 % Functions: 79 82 96.3 % Previous versions: 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 (17): landlock: renames access mask landlock: refactors landlock_find/insert_rule landlock: refactors merge and inherit functions landlock: moves helper functions landlock: refactors helper functions landlock: refactors landlock_add_rule syscall landlock: user space API network support landlock: adds support network rules landlock: implements TCP network hooks seltests/landlock: moves helper function seltests/landlock: adds tests for bind() hooks seltests/landlock: adds tests for connect() hooks seltests/landlock: adds AF_UNSPEC family test seltests/landlock: adds rules overlapping test seltests/landlock: adds ruleset expanding test seltests/landlock: adds invalid input data test samples/landlock: adds network demo include/uapi/linux/landlock.h | 49 ++ samples/landlock/sandboxer.c | 118 ++- security/landlock/Kconfig | 1 + security/landlock/Makefile | 2 + security/landlock/fs.c | 162 +--- security/landlock/limits.h | 8 +- security/landlock/net.c | 155 ++++ security/landlock/net.h | 26 + security/landlock/ruleset.c | 448 +++++++++-- security/landlock/ruleset.h | 91 ++- 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 | 774 ++++++++++++++++++++ 16 files changed, 1737 insertions(+), 291 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
