103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* Check decoding of ioprio_get and ioprio_set syscalls.
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*
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* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#if defined(__NR_ioprio_get) && defined(__NR_ioprio_set)
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# include <stdio.h>
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# include <unistd.h>
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enum {
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IOPRIO_CLASS_NONE,
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IOPRIO_CLASS_RT,
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IOPRIO_CLASS_BE,
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IOPRIO_CLASS_IDLE
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};
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# include "xlat.h"
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# include "xlat/ioprio_class.h"
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void
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print_ioprio(unsigned long val)
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{
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printf(" (IOPRIO_PRIO_VALUE(");
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printxval(ioprio_class, val >> 13, "IOPRIO_CLASS_???");
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printf(", %d))", (int) (val & 0x1fff));
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}
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int
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main(void)
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{
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static const kernel_ulong_t bogus_which =
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(kernel_ulong_t) 0xdeadfacefa57beefULL;
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static const kernel_ulong_t bogus_who =
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(kernel_ulong_t) 0xbadc0dedda7a1057ULL;
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static const kernel_ulong_t bogus_ioprio =
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(kernel_ulong_t) 0xdec0ded1facefeedULL;
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static const char * const bogus_ioprio_str =
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"IOPRIO_PRIO_VALUE(0x7d677 /* IOPRIO_CLASS_??? */, 7917)";
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long rc;
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rc = syscall(__NR_ioprio_get, bogus_which, bogus_who);
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printf("ioprio_get(%#x /* IOPRIO_WHO_??? */, %d) = %s\n",
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(int) bogus_which, (int) bogus_who, sprintrc(rc));
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rc = syscall(__NR_ioprio_get, 1, 0);
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printf("ioprio_get(IOPRIO_WHO_PROCESS, 0) = %s", sprintrc(rc));
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if (rc >= -1)
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print_ioprio(rc);
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puts("");
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rc = syscall(__NR_ioprio_set, 2, 0, 8191);
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printf("ioprio_set(IOPRIO_WHO_PGRP, 0, "
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"IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 8191)) = %s\n",
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sprintrc(rc));
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rc = syscall(__NR_ioprio_set, bogus_which, bogus_who, bogus_ioprio);
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printf("ioprio_set(%#x /* IOPRIO_WHO_??? */, %d, %s) = %s\n",
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(int) bogus_which, (int) bogus_who, bogus_ioprio_str,
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sprintrc(rc));
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_ioprio_get && __NR_ioprio_set");
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#endif
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