116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
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* Check decoding of delete_module syscall.
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*
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* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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* Copyright (c) 2016-2017 The strace developers.
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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_delete_module)
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# include <fcntl.h>
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# include <stdio.h>
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# include <unistd.h>
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# include "init_delete_module.h"
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int
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main(void)
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{
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static const struct {
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kernel_ulong_t val;
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const char *str;
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unsigned int val_prefix, val_suffix;
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} flags[] = {
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{ ARG_STR(0), 0, 0 },
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{ F8ILL_KULONG_MASK | O_NONBLOCK, "O_NONBLOCK", 0, 0 },
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{ (kernel_ulong_t) 0xbadc0dedfacef157ULL & ~(O_NONBLOCK | O_TRUNC),
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" /* O_??? */", 0xfacef157U & ~(O_NONBLOCK | O_TRUNC), 0},
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{ (kernel_ulong_t) (0xfacef157deade71cULL & ~O_NONBLOCK) | O_TRUNC,
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"O_TRUNC", 0, 0xdeade71c & ~(O_NONBLOCK | O_TRUNC)},
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{ -1LL, "O_NONBLOCK|O_TRUNC", 0, -1U & ~(O_NONBLOCK | O_TRUNC)},
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};
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long rc;
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char *bogus_param1 = tail_alloc(PARAM1_LEN);
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char *bogus_param2 = tail_alloc(PARAM2_LEN);
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const char *errstr;
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fill_memory_ex(bogus_param1, PARAM1_LEN, PARAM1_BASE, PARAM1_LEN);
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fill_memory_ex(bogus_param2, PARAM2_LEN, PARAM2_BASE, PARAM2_LEN);
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rc = syscall(__NR_delete_module, NULL, F8ILL_KULONG_MASK);
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printf("delete_module(NULL, 0) = %s\n", sprintrc(rc));
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rc = syscall(__NR_delete_module, bogus_param1, flags[0].val);
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errstr = sprintrc(rc);
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printf("delete_module(\"");
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print_str(PARAM1_BASE, MAX_STRLEN, false);
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printf("\"..., %s) = %s\n", flags[0].str, errstr);
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bogus_param1[PARAM1_LEN - 1] = '\0';
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rc = syscall(__NR_delete_module, bogus_param1, flags[1].val);
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errstr = sprintrc(rc);
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printf("delete_module(\"");
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print_str(PARAM1_BASE, MAX_STRLEN, false);
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printf("\", %s) = %s\n", flags[1].str, errstr);
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rc = syscall(__NR_delete_module, bogus_param2 + PARAM2_LEN,
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flags[2].val);
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printf("delete_module(%p, %#x%s) = %s\n",
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bogus_param2 + PARAM2_LEN, flags[2].val_prefix,
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flags[2].str, sprintrc(rc));
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rc = syscall(__NR_delete_module, bogus_param2, flags[3].val);
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printf("delete_module(%p, %s|%#x) = %s\n",
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bogus_param2, flags[3].str, flags[3].val_suffix, sprintrc(rc));
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bogus_param2[PARAM2_LEN - 1] = '\0';
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rc = syscall(__NR_delete_module, bogus_param2, flags[4].val);
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errstr = sprintrc(rc);
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printf("delete_module(\"");
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print_str(PARAM2_BASE, PARAM2_LEN - 1, true);
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printf("\", %s|%#x) = %s\n", flags[4].str, flags[4].val_suffix, errstr);
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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_delete_module");
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#endif
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