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/*
* Check decoding of finit_module syscall.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016-2022 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.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|"
"MODULE_INIT_COMPRESSED_FILE|0xfffffff8" },
};
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
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