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/*
* Check decoding of ioprio_get and ioprio_set syscalls.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#include "pidns.h"
#if defined(__NR_ioprio_get) && defined(__NR_ioprio_set)
# include <stdio.h>
# include <unistd.h>
enum {
IOPRIO_CLASS_NONE,
IOPRIO_CLASS_RT,
IOPRIO_CLASS_BE,
IOPRIO_CLASS_IDLE
};
# include "xlat.h"
# include "xlat/ioprio_class.h"
int
main(void)
{
PIDNS_TEST_INIT;
static const kernel_ulong_t bogus_which =
(kernel_ulong_t) 0xdeadfacefa57beefULL;
static const kernel_ulong_t bogus_who =
(kernel_ulong_t) 0xbadc0dedda7a1057ULL;
static const kernel_ulong_t bogus_ioprio =
(kernel_ulong_t) 0xdec0ded1facefeedULL;
const int pid = getpid();
const int pgid = getpgid(0);
# if !XLAT_RAW
static const char * const bogus_ioprio_str =
"IOPRIO_PRIO_VALUE(0x7d677 /* IOPRIO_CLASS_??? */, 7917)";
# endif
long rc;
const char *errstr;
rc = syscall(__NR_ioprio_get, bogus_which, bogus_who);
errstr = sprintrc(rc);
pidns_print_leader();
# if XLAT_RAW
printf("ioprio_get(%#x, %d) = %s\n",
(int) bogus_which, (int) bogus_who, errstr);
# else /* XLAT_ABBREV || XLAT_VERBOSE */
printf("ioprio_get(%#x /* IOPRIO_WHO_??? */, %d) = %s\n",
(int) bogus_which, (int) bogus_who, errstr);
# endif
rc = syscall(__NR_ioprio_get, 1, pid);
errstr = sprintrc(rc);
pidns_print_leader();
printf("ioprio_get(");
# if XLAT_RAW
printf("0x1, ");
# elif XLAT_VERBOSE
printf("0x1 /* IOPRIO_WHO_PROCESS */, ");
# else /* XLAT_ABBREV */
printf("IOPRIO_WHO_PROCESS, ");
# endif
printf("%d%s) = %s", pid, pidns_pid2str(PT_TGID), errstr);
# if !XLAT_RAW
if (rc >= 0) {
printf(" (IOPRIO_PRIO_VALUE(");
printxval(ioprio_class, (unsigned int) rc >> 13,
"IOPRIO_CLASS_???");
printf(", %u))", (unsigned int) rc & 0x1fff);
}
# endif
puts("");
rc = syscall(__NR_ioprio_set, 2, pgid, 8191);
errstr = sprintrc(rc);
pidns_print_leader();
printf("ioprio_set(");
# if XLAT_RAW
printf("%#x", 2);
# elif XLAT_VERBOSE
printf("%#x /* IOPRIO_WHO_PGRP */", 2);
# else /* XLAT_ABBREV */
printf("IOPRIO_WHO_PGRP");
# endif
printf(", %d%s", pgid, pidns_pid2str(PT_PGID));
# if XLAT_RAW
printf(", 8191)");
# elif XLAT_VERBOSE
printf(", 8191 /* IOPRIO_PRIO_VALUE(0 /* IOPRIO_CLASS_NONE */, 8191) */)");
# else /* XLAT_ABBREV */
printf(", IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 8191))");
# endif
printf(" = %s\n", errstr);
rc = syscall(__NR_ioprio_set, bogus_which, bogus_who, bogus_ioprio);
errstr = sprintrc(rc);
pidns_print_leader();
# if XLAT_RAW
printf("ioprio_set(%#x, %d, %d) = %s\n",
(int) bogus_which, (int) bogus_who, (int) bogus_ioprio,
errstr);
# elif XLAT_VERBOSE
printf("ioprio_set(%#x /* IOPRIO_WHO_??? */, %d, %d /* %s */) = %s\n",
(int) bogus_which, (int) bogus_who, (int) bogus_ioprio,
bogus_ioprio_str, errstr);
# else /* XLAT_ABBREV */
printf("ioprio_set(%#x /* IOPRIO_WHO_??? */, %d, %s) = %s\n",
(int) bogus_which, (int) bogus_who, bogus_ioprio_str,
errstr);
# endif
pidns_print_leader();
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_ioprio_get && __NR_ioprio_set");
#endif
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