[LTP] [PATCH v2 4/5] {delete, finit, init}_module0[1-3]: Skip on SecureBoot

Martin Doucha mdoucha@suse.cz
Tue Jul 25 13:10:53 CEST 2023


Hi,
Reviewed-by: Martin Doucha <mdoucha@suse.cz>

On 21. 07. 23 11:15, Petr Vorel wrote:
> Enabled SecureBoot requires signed modules (regardless lockdown state).
> 
> Signed-off-by: Petr Vorel <pvorel@suse.cz>
> ---
>   testcases/kernel/syscalls/delete_module/delete_module01.c | 3 ++-
>   testcases/kernel/syscalls/delete_module/delete_module03.c | 3 ++-
>   testcases/kernel/syscalls/finit_module/finit_module01.c   | 3 ++-
>   testcases/kernel/syscalls/finit_module/finit_module02.c   | 8 +++++---
>   testcases/kernel/syscalls/init_module/init_module01.c     | 3 ++-
>   testcases/kernel/syscalls/init_module/init_module02.c     | 7 ++++---
>   6 files changed, 17 insertions(+), 10 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/delete_module/delete_module01.c b/testcases/kernel/syscalls/delete_module/delete_module01.c
> index 6ecd2cad1..90d8b5289 100644
> --- a/testcases/kernel/syscalls/delete_module/delete_module01.c
> +++ b/testcases/kernel/syscalls/delete_module/delete_module01.c
> @@ -50,8 +50,9 @@ static void cleanup(void)
>   
>   static struct tst_test test = {
>   	.needs_root = 1,
> -	/* lockdown requires signed modules */
> +	/* lockdown and SecureBoot requires signed modules */
>   	.skip_in_lockdown = 1,
> +	.skip_in_secureboot = 1,
>   	.cleanup = cleanup,
>   	.test_all = do_delete_module,
>   };
> diff --git a/testcases/kernel/syscalls/delete_module/delete_module03.c b/testcases/kernel/syscalls/delete_module/delete_module03.c
> index 863d36188..7e92fc2af 100644
> --- a/testcases/kernel/syscalls/delete_module/delete_module03.c
> +++ b/testcases/kernel/syscalls/delete_module/delete_module03.c
> @@ -72,8 +72,9 @@ static void cleanup(void)
>   
>   static struct tst_test test = {
>   	.needs_root = 1,
> -	/* lockdown requires signed modules */
> +	/* lockdown and SecureBoot requires signed modules */
>   	.skip_in_lockdown = 1,
> +	.skip_in_secureboot = 1,
>   	.setup = setup,
>   	.cleanup = cleanup,
>   	.test_all = do_delete_module,
> diff --git a/testcases/kernel/syscalls/finit_module/finit_module01.c b/testcases/kernel/syscalls/finit_module/finit_module01.c
> index f960b2e40..1929c30fa 100644
> --- a/testcases/kernel/syscalls/finit_module/finit_module01.c
> +++ b/testcases/kernel/syscalls/finit_module/finit_module01.c
> @@ -49,6 +49,7 @@ static struct tst_test test = {
>   	.setup = setup,
>   	.cleanup = cleanup,
>   	.needs_root = 1,
> -	/* lockdown requires signed modules */
> +	/* lockdown and SecureBoot requires signed modules */
>   	.skip_in_lockdown = 1,
> +	.skip_in_secureboot = 1,
>   };
> diff --git a/testcases/kernel/syscalls/finit_module/finit_module02.c b/testcases/kernel/syscalls/finit_module/finit_module02.c
> index a7434de7d..af4feb76b 100644
> --- a/testcases/kernel/syscalls/finit_module/finit_module02.c
> +++ b/testcases/kernel/syscalls/finit_module/finit_module02.c
> @@ -25,7 +25,7 @@
>   static char *mod_path;
>   
>   static int fd, fd_zero, fd_invalid = -1, fd_dir;
> -static int kernel_lockdown;
> +static int kernel_lockdown, secure_boot;
>   
>   static struct tst_cap cap_req = TST_CAP(TST_CAP_REQ, CAP_SYS_MODULE);
>   static struct tst_cap cap_drop = TST_CAP(TST_CAP_DROP, CAP_SYS_MODULE);
> @@ -84,6 +84,8 @@ static void setup(void)
>   	tst_module_exists(MODULE_NAME, &mod_path);
>   
>   	kernel_lockdown = tst_lockdown_enabled();
> +	secure_boot = tst_secureboot_enabled();
> +
>   	SAFE_MKDIR(TEST_DIR, 0700);
>   	fd_dir = SAFE_OPEN(TEST_DIR, O_DIRECTORY);
>   
> @@ -102,8 +104,8 @@ static void run(unsigned int n)
>   {
>   	struct tcase *tc = &tcases[n];
>   
> -	if (tc->skip_in_lockdown && kernel_lockdown) {
> -		tst_res(TCONF, "Kernel is locked down, skipping %s", tc->name);
> +	if (tc->skip_in_lockdown && (kernel_lockdown || secure_boot)) {
> +		tst_res(TCONF, "Cannot load unsigned modules, skipping %s", tc->name);
>   		return;
>   	}
>   
> diff --git a/testcases/kernel/syscalls/init_module/init_module01.c b/testcases/kernel/syscalls/init_module/init_module01.c
> index 79e567cd6..26ff0b93b 100644
> --- a/testcases/kernel/syscalls/init_module/init_module01.c
> +++ b/testcases/kernel/syscalls/init_module/init_module01.c
> @@ -53,6 +53,7 @@ static struct tst_test test = {
>   	.setup = setup,
>   	.cleanup = cleanup,
>   	.needs_root = 1,
> -	/* lockdown requires signed modules */
> +	/* lockdown and SecureBoot requires signed modules */
>   	.skip_in_lockdown = 1,
> +	.skip_in_secureboot = 1,
>   };
> diff --git a/testcases/kernel/syscalls/init_module/init_module02.c b/testcases/kernel/syscalls/init_module/init_module02.c
> index ad6569a06..15a482664 100644
> --- a/testcases/kernel/syscalls/init_module/init_module02.c
> +++ b/testcases/kernel/syscalls/init_module/init_module02.c
> @@ -22,7 +22,7 @@
>   #define MODULE_NAME	"init_module.ko"
>   
>   static unsigned long size, zero_size;
> -static int kernel_lockdown;
> +static int kernel_lockdown, secure_boot;
>   static void *buf, *faulty_buf, *null_buf;
>   
>   static struct tst_cap cap_req = TST_CAP(TST_CAP_REQ, CAP_SYS_MODULE);
> @@ -54,6 +54,7 @@ static void setup(void)
>   	tst_module_exists(MODULE_NAME, NULL);
>   
>   	kernel_lockdown = tst_lockdown_enabled();
> +	secure_boot = tst_secureboot_enabled();
>   	fd = SAFE_OPEN(MODULE_NAME, O_RDONLY|O_CLOEXEC);
>   	SAFE_FSTAT(fd, &sb);
>   	size = sb.st_size;
> @@ -67,8 +68,8 @@ static void run(unsigned int n)
>   {
>   	struct tcase *tc = &tcases[n];
>   
> -	if (tc->skip_in_lockdown && kernel_lockdown) {
> -		tst_res(TCONF, "Kernel is locked down, skipping %s", tc->name);
> +	if (tc->skip_in_lockdown && (kernel_lockdown || secure_boot)) {
> +		tst_res(TCONF, "Cannot load unsigned modules, skipping %s", tc->name);
>   		return;
>   	}
>   

-- 
Martin Doucha   mdoucha@suse.cz
SW Quality Engineer
SUSE LINUX, s.r.o.
CORSO IIa
Krizikova 148/34
186 00 Prague 8
Czech Republic



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