[LTP] [PATCH v2 2/2] syscalls/setrlimit03.c: Cleanup && Convert to new API
Xiao Yang
yangx.jy@cn.fujitsu.com
Thu Oct 19 07:12:37 CEST 2017
Hi Cyril,
Could you help me review this patch? Thanks a lot.
Thanks,
Xiao Yang
On 2017/10/10 9:52, Xiao Yang wrote:
> 1) take use of safe macros
> 2) add a test for EINVAL
>
> Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
> ---
> testcases/kernel/syscalls/setrlimit/setrlimit03.c | 143 ++++++++--------------
> 1 file changed, 53 insertions(+), 90 deletions(-)
>
> diff --git a/testcases/kernel/syscalls/setrlimit/setrlimit03.c b/testcases/kernel/syscalls/setrlimit/setrlimit03.c
> index e0beb17..d551c90 100644
> --- a/testcases/kernel/syscalls/setrlimit/setrlimit03.c
> +++ b/testcases/kernel/syscalls/setrlimit/setrlimit03.c
> @@ -1,116 +1,79 @@
> /*
> + * Copyright (c) International Business Machines Corp., 2001
> + * Copyright (c) 2017 Xiao Yang <yangx.jy@cn.fujitsu.com>
> *
> - * Copyright (c) International Business Machines Corp., 2001
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
> + * the GNU General Public License for more details.
> *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
> - * the GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> */
>
> /*
> - * NAME
> - * setrlimit03.c
> - *
> * DESCRIPTION
> - * Test for EPERM when the super-user tries to increase RLIMIT_NOFILE
> - * beyond the system limit.
> - *
> - * USAGE: <for command-line>
> - * setrlimit03 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
> - * where, -c n : Run n copies concurrently.
> - * -e : Turn on errno logging.
> - * -i n : Execute test n times.
> - * -I x : Execute test for x seconds.
> - * -P x : Pause for x seconds between iterations.
> - * -t : Turn on syscall timing.
> - *
> - * HISTORY
> - * 07/2001 Ported by Wayne Boyer
> - *
> - * RESTRICTIONS
> - * Must run test as root.
> + * 1) Test for EPERM when the super-user tries to increase RLIMIT_NOFILE
> + * beyond the system limit.
> + * 2) Test for EINVAL when rlim->rlim_cur is greater than rlim->rlim_max.
> */
> +
> +#include <errno.h>
> #include <sys/time.h>
> #include <sys/resource.h>
> -#include <unistd.h>
> -#include <errno.h>
> -#include "test.h"
> #include <linux/fs.h>
> -
> -char *TCID = "setrlimit03";
> -int TST_TOTAL = 1;
> +#include "tst_test.h"
>
> #if !defined(NR_OPEN)
> -//Taken from definition in /usr/include/linux/fs.h
> -#define NR_OPEN (1024*1024)
> +// Taken from definition in /usr/include/linux/fs.h
> +# define NR_OPEN (1024*1024)
> #endif
>
> -void setup();
> -void cleanup();
> -
> -int main(int ac, char **av)
> -{
> - int lc;
> - struct rlimit rlim;
> -
> - tst_parse_opts(ac, av, NULL, NULL);
> -
> - setup();
> -
> - for (lc = 0; TEST_LOOPING(lc); lc++) {
> +static struct rlimit rlim1, rlim2;
>
> - tst_count = 0;
> +static struct tcase {
> + struct rlimit *rlimt;
> + int exp_err;
> +} tcases[] = {
> + {&rlim1, EPERM},
> + {&rlim2, EINVAL}
> +};
>
> - if (getrlimit(RLIMIT_NOFILE, &rlim) != 0)
> - tst_brkm(TFAIL, cleanup, "getrlimit failed, "
> - "errno = %d", errno);
> - rlim.rlim_max = NR_OPEN + 1;
> -
> - TEST(setrlimit(RLIMIT_NOFILE, &rlim));
> -
> - if (TEST_RETURN != -1) {
> - tst_resm(TFAIL, "call succeeded unexpectedly");
> - continue;
> - }
> +static void verify_setrlimit(unsigned int n)
> +{
> + struct tcase *tc = &tcases[n];
>
> - if (TEST_ERRNO != EPERM) {
> - tst_resm(TFAIL, "Expected EPERM, got %d", TEST_ERRNO);
> - } else {
> - tst_resm(TPASS, "got expected EPERM error");
> - }
> + TEST(setrlimit(RLIMIT_NOFILE, tc->rlimt));
> + if (TEST_RETURN != -1) {
> + tst_res(TFAIL, "call succeeded unexpectedly");
> + return;
> }
> - cleanup();
> - tst_exit();
>
> + if (TEST_ERRNO != tc->exp_err) {
> + tst_res(TFAIL | TTERRNO, "setrlimit() should fail with %s, got",
> + tst_strerrno(tc->exp_err));
> + } else {
> + tst_res(TPASS | TTERRNO, "setrlimit() failed as expected");
> + }
> }
>
> -/*
> - * setup() - performs all ONE TIME setup for this test.
> - */
> -void setup(void)
> +static void setup(void)
> {
> - tst_require_root();
> -
> - tst_sig(FORK, DEF_HANDLER, cleanup);
> -
> - TEST_PAUSE;
> + SAFE_GETRLIMIT(RLIMIT_NOFILE, &rlim1);
> + rlim2.rlim_max = rlim1.rlim_cur;
> + rlim2.rlim_cur = rlim1.rlim_max + 1;
> + rlim1.rlim_max = NR_OPEN + 1;
> }
>
> -/*
> - * cleanup() - performs all ONE TIME cleanup for this test at
> - * completion or premature exit.
> - */
> -void cleanup(void)
> -{
> -
> -}
> +static struct tst_test test = {
> + .setup = setup,
> + .tcnt = ARRAY_SIZE(tcases),
> + .test = verify_setrlimit,
> + .needs_root = 1
> +};
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