diff options
| -rw-r--r-- | kernel/sysctl-test.c | 49 | ||||
| -rw-r--r-- | lib/test_sysctl.c | 66 |
2 files changed, 66 insertions, 49 deletions
diff --git a/kernel/sysctl-test.c b/kernel/sysctl-test.c index eb2842bd0557..92f94ea28957 100644 --- a/kernel/sysctl-test.c +++ b/kernel/sysctl-test.c @@ -367,54 +367,6 @@ static void sysctl_test_api_dointvec_write_single_greater_int_max( KUNIT_EXPECT_EQ(test, 0, *((int *)table.data)); } -/* - * Test that registering an invalid extra value is not allowed. - */ -static void sysctl_test_register_sysctl_sz_invalid_extra_value( - struct kunit *test) -{ - unsigned char data = 0; - const struct ctl_table table_foo[] = { - { - .procname = "foo", - .data = &data, - .maxlen = sizeof(u8), - .mode = 0644, - .proc_handler = proc_dou8vec_minmax, - .extra1 = SYSCTL_FOUR, - .extra2 = SYSCTL_ONE_THOUSAND, - }, - }; - - const struct ctl_table table_bar[] = { - { - .procname = "bar", - .data = &data, - .maxlen = sizeof(u8), - .mode = 0644, - .proc_handler = proc_dou8vec_minmax, - .extra1 = SYSCTL_NEG_ONE, - .extra2 = SYSCTL_ONE_HUNDRED, - }, - }; - - const struct ctl_table table_qux[] = { - { - .procname = "qux", - .data = &data, - .maxlen = sizeof(u8), - .mode = 0644, - .proc_handler = proc_dou8vec_minmax, - .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_TWO_HUNDRED, - }, - }; - - KUNIT_EXPECT_NULL(test, register_sysctl("foo", table_foo)); - KUNIT_EXPECT_NULL(test, register_sysctl("foo", table_bar)); - KUNIT_EXPECT_NOT_NULL(test, register_sysctl("foo", table_qux)); -} - static struct kunit_case sysctl_test_cases[] = { KUNIT_CASE(sysctl_test_api_dointvec_null_tbl_data), KUNIT_CASE(sysctl_test_api_dointvec_table_maxlen_unset), @@ -426,7 +378,6 @@ static struct kunit_case sysctl_test_cases[] = { KUNIT_CASE(sysctl_test_dointvec_write_happy_single_negative), KUNIT_CASE(sysctl_test_api_dointvec_write_single_less_int_min), KUNIT_CASE(sysctl_test_api_dointvec_write_single_greater_int_max), - KUNIT_CASE(sysctl_test_register_sysctl_sz_invalid_extra_value), {} }; diff --git a/lib/test_sysctl.c b/lib/test_sysctl.c index 4249e0cc8aaf..54a22e4b1346 100644 --- a/lib/test_sysctl.c +++ b/lib/test_sysctl.c @@ -37,6 +37,7 @@ static struct { struct ctl_table_header *test_h_mnterror; struct ctl_table_header *empty_add; struct ctl_table_header *empty; + struct ctl_table_header *test_u8; } sysctl_test_headers; struct test_sysctl_data { @@ -239,6 +240,65 @@ static int test_sysctl_run_register_empty(void) return 0; } +static const struct ctl_table table_u8_over[] = { + { + .procname = "u8_over", + .data = &test_data.uint_0001, + .maxlen = sizeof(u8), + .mode = 0644, + .proc_handler = proc_dou8vec_minmax, + .extra1 = SYSCTL_FOUR, + .extra2 = SYSCTL_ONE_THOUSAND, + }, +}; + +static const struct ctl_table table_u8_under[] = { + { + .procname = "u8_under", + .data = &test_data.uint_0001, + .maxlen = sizeof(u8), + .mode = 0644, + .proc_handler = proc_dou8vec_minmax, + .extra1 = SYSCTL_NEG_ONE, + .extra2 = SYSCTL_ONE_HUNDRED, + }, +}; + +static const struct ctl_table table_u8_valid[] = { + { + .procname = "u8_valid", + .data = &test_data.uint_0001, + .maxlen = sizeof(u8), + .mode = 0644, + .proc_handler = proc_dou8vec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_TWO_HUNDRED, + }, +}; + +static int test_sysctl_register_u8_extra(void) +{ + /* should fail because it's over */ + sysctl_test_headers.test_u8 + = register_sysctl("debug/test_sysctl", table_u8_over); + if (sysctl_test_headers.test_u8) + return -ENOMEM; + + /* should fail because it's under */ + sysctl_test_headers.test_u8 + = register_sysctl("debug/test_sysctl", table_u8_under); + if (sysctl_test_headers.test_u8) + return -ENOMEM; + + /* should not fail because it's valid */ + sysctl_test_headers.test_u8 + = register_sysctl("debug/test_sysctl", table_u8_valid); + if (!sysctl_test_headers.test_u8) + return -ENOMEM; + + return 0; +} + static int __init test_sysctl_init(void) { int err; @@ -256,6 +316,10 @@ static int __init test_sysctl_init(void) goto out; err = test_sysctl_run_register_empty(); + if (err) + goto out; + + err = test_sysctl_register_u8_extra(); out: return err; @@ -275,6 +339,8 @@ static void __exit test_sysctl_exit(void) unregister_sysctl_table(sysctl_test_headers.empty); if (sysctl_test_headers.empty_add) unregister_sysctl_table(sysctl_test_headers.empty_add); + if (sysctl_test_headers.test_u8) + unregister_sysctl_table(sysctl_test_headers.test_u8); } module_exit(test_sysctl_exit); |