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/*
* Check decoding of setns syscall.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016-2024 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#include <stdio.h>
#include <unistd.h>
static const char *errstr;
static long
k_setns(const int fd, const unsigned int flags)
{
const kernel_ulong_t fill = (kernel_ulong_t) 0x0defaced00000000ULL;
const kernel_ulong_t bad = (kernel_ulong_t) 0xbadc0dedbadc0dedULL;
const kernel_ulong_t arg1 = fill | (unsigned int) fd;
const kernel_ulong_t arg2 = fill | flags;
const long rc = syscall(__NR_setns,
arg1, arg2, bad, bad, bad, bad);
errstr = sprintrc(rc);
return rc;
}
int
main(void)
{
static const int bogus_fd = 0xdeadc0de;
static const struct strval32 nstypes[] = {
{ 0, "0" },
{ 0x00000080U, "CLONE_NEWTIME" },
{ 0x00020000U, "CLONE_NEWNS" },
{ 0x02000000U, "CLONE_NEWCGROUP" },
{ 0x04000000U, "CLONE_NEWUTS" },
{ 0x08000000U, "CLONE_NEWIPC" },
{ 0x10000000U, "CLONE_NEWUSER" },
{ 0x20000000U, "CLONE_NEWPID" },
{ 0x40000000U, "CLONE_NEWNET" },
{ 0x81fdff7fU, "0x81fdff7f /* CLONE_NEW??? */" },
{ -1U,
"CLONE_NEWTIME|CLONE_NEWNS|CLONE_NEWCGROUP|CLONE_NEWUTS|"
"CLONE_NEWIPC|CLONE_NEWUSER|CLONE_NEWPID|CLONE_NEWNET|"
"0x81fdff7f" },
};
for (unsigned int i = 0; i < ARRAY_SIZE(nstypes); ++i) {
k_setns(bogus_fd, nstypes[i].val);
printf("setns(%d, %s) = %s\n",
bogus_fd, nstypes[i].str, errstr);
}
puts("+++ exited with 0 +++");
return 0;
}
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