On Mon, Aug 22, 2022 at 07:46:59PM +0800, Xiu Jianfeng wrote: > +TEST_F_FORK(layout1, unhandled_chmod) > +{ > + const struct rule rules[] = { > + { > + .path = file2_s3d1, > + .access = LANDLOCK_ACCESS_FS_READ_FILE | > + LANDLOCK_ACCESS_FS_WRITE_FILE, > + }, > + { > + .path = file3_s3d1, > + .access = LANDLOCK_ACCESS_FS_READ_FILE | > + LANDLOCK_ACCESS_FS_WRITE_FILE, > + }, > + {}, > + }; > + const int ruleset_fd = > + create_ruleset(_metadata, ACCESS_RW, rules); > + > + ASSERT_LE(0, ruleset_fd); > + enforce_ruleset(_metadata, ruleset_fd); > + ASSERT_EQ(0, close(ruleset_fd)); > + > + ASSERT_EQ(0, test_chmod(file2_s3d1)); > + ASSERT_EQ(0, test_fchmod(file2_s3d1)); > + ASSERT_EQ(0, test_chmod(file3_s3d1)); > + ASSERT_EQ(0, test_chmod(dir_s3d1)); > +} I missed it in the previous mail: There are also the chown variants lchown() and fchownat(), as well as the chmod variant fchmodat(), which might be interesting to test, especially the symlink scenarios. fchmodat() has a AT_SYMLINK_NOFOLLOW flag which does the chmod equivalent to lchown(). --