android13/external/ltp/testcases/kernel/syscalls/capset/capset03.c

52 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2019 FUJITSU LIMITED. All rights reserved.
* Author: Yang Xu <xuyang2018.jy@cn.fujitsu.com
*
* capset() fails with errno set or EPERM if the new_Inheritable is
* not a subset of old_Inheritable and old_Permitted without CAP_SETPCAP.
*/
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include "tst_test.h"
#include "lapi/syscalls.h"
#include <linux/capability.h>
#define CAP1 (1 << CAP_KILL)
#define CAP2 (CAP1 | 1 << CAP_NET_RAW)
static struct __user_cap_header_struct *header;
static struct __user_cap_data_struct *data;
static void verify_capset(void)
{
tst_res(TINFO, "Test bad value data(when pI is not old pP or old pI without CAP_SETPCAP)");
data[0].inheritable = CAP2;
TST_EXP_FAIL(tst_syscall(__NR_capset, header, data), EPERM, "capset()");
}
static void setup(void)
{
header->version = 0x20080522;
data[0].effective = CAP1;
data[0].permitted = CAP1;
data[0].inheritable = CAP1;
TEST(tst_syscall(__NR_capset, header, data));
if (TST_RET == -1)
tst_brk(TBROK | TTERRNO, "capset data failed");
}
static struct tst_test test = {
.setup = setup,
.test_all = verify_capset,
.needs_root = 1,
.bufs = (struct tst_buffers []) {
{&header, .size = sizeof(*header)},
{&data, .size = 2 * sizeof(*data)},
{},
}
};