121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*
|
|
* Check decoding of finit_module syscall.
|
|
*
|
|
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
|
|
* Copyright (c) 2016-2017 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "tests.h"
|
|
|
|
#include <asm/unistd.h>
|
|
#include "scno.h"
|
|
|
|
#if defined(__NR_finit_module)
|
|
|
|
# include <stdio.h>
|
|
# include <unistd.h>
|
|
|
|
# include "init_delete_module.h"
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
static const kernel_ulong_t bogus_fd =
|
|
(kernel_ulong_t) 0xdeb0d1edbeeff00dULL;
|
|
|
|
static const struct {
|
|
kernel_ulong_t val;
|
|
const char *str;
|
|
} flags[] = {
|
|
{ ARG_STR(0) },
|
|
{ (kernel_ulong_t) 0xffffffff00000002ULL,
|
|
"MODULE_INIT_IGNORE_VERMAGIC" },
|
|
{ (kernel_ulong_t) 0xbadc0deddefaced0ULL,
|
|
"0xdefaced0 /* MODULE_INIT_??? */" },
|
|
{ (kernel_ulong_t) 0xfacef157dec0ded1ULL,
|
|
"MODULE_INIT_IGNORE_MODVERSIONS|0xdec0ded0" },
|
|
{ -1LL, "MODULE_INIT_IGNORE_MODVERSIONS|"
|
|
"MODULE_INIT_IGNORE_VERMAGIC|0xfffffffc" },
|
|
};
|
|
|
|
long rc;
|
|
char *bogus_param1 = tail_alloc(PARAM1_LEN);
|
|
char *bogus_param2 = tail_alloc(PARAM2_LEN);
|
|
const char *errstr;
|
|
|
|
fill_memory_ex(bogus_param1, PARAM1_LEN, PARAM1_BASE, PARAM1_LEN);
|
|
fill_memory_ex(bogus_param2, PARAM2_LEN, PARAM2_BASE, PARAM2_LEN);
|
|
|
|
rc = syscall(__NR_finit_module, F8ILL_KULONG_MASK, NULL,
|
|
F8ILL_KULONG_MASK);
|
|
printf("finit_module(0, NULL, 0) = %s\n", sprintrc(rc));
|
|
|
|
rc = syscall(__NR_finit_module, bogus_fd, bogus_param1, flags[0].val);
|
|
errstr = sprintrc(rc);
|
|
|
|
printf("finit_module(%d, \"", (int) bogus_fd);
|
|
print_str(PARAM1_BASE, MAX_STRLEN, false);
|
|
printf("\"..., %s) = %s\n", flags[0].str, errstr);
|
|
|
|
bogus_param1[PARAM1_LEN - 1] = '\0';
|
|
|
|
rc = syscall(__NR_finit_module, bogus_fd, bogus_param1, flags[1].val);
|
|
errstr = sprintrc(rc);
|
|
|
|
printf("finit_module(%d, \"", (int) bogus_fd);
|
|
print_str(PARAM1_BASE, MAX_STRLEN, false);
|
|
printf("\", %s) = %s\n", flags[1].str, errstr);
|
|
|
|
rc = syscall(__NR_finit_module, bogus_fd, bogus_param2 + PARAM2_LEN,
|
|
flags[2].val);
|
|
printf("finit_module(%d, %p, %s) = %s\n",
|
|
(int) bogus_fd, bogus_param2 + PARAM2_LEN, flags[2].str,
|
|
sprintrc(rc));
|
|
|
|
rc = syscall(__NR_finit_module, bogus_fd, bogus_param2, flags[3].val);
|
|
printf("finit_module(%d, %p, %s) = %s\n",
|
|
(int) bogus_fd, bogus_param2, flags[3].str, sprintrc(rc));
|
|
|
|
bogus_param2[PARAM2_LEN - 1] = '\0';
|
|
|
|
rc = syscall(__NR_finit_module, bogus_fd, bogus_param2, flags[4].val);
|
|
errstr = sprintrc(rc);
|
|
|
|
printf("finit_module(%d, \"", (int) bogus_fd);
|
|
print_str(PARAM2_BASE, PARAM2_LEN - 1, true);
|
|
printf("\", %s) = %s\n", flags[4].str, errstr);
|
|
|
|
puts("+++ exited with 0 +++");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
SKIP_MAIN_UNDEFINED("__NR_finit_module");
|
|
|
|
#endif
|