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/*
* Check decoding of delete_module syscall.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#if defined(__NR_delete_module)
# include <stdio.h>
# include <unistd.h>
# include "kernel_fcntl.h"
# include "init_delete_module.h"
int
main(void)
{
static const struct {
kernel_ulong_t val;
const char *str;
unsigned int val_prefix, val_suffix;
} flags[] = {
{ ARG_STR(0), 0, 0 },
{ F8ILL_KULONG_MASK | O_NONBLOCK, "O_NONBLOCK", 0, 0 },
{ (kernel_ulong_t) 0xbadc0dedfacef157ULL & ~(O_NONBLOCK | O_TRUNC),
" /* O_??? */", 0xfacef157U & ~(O_NONBLOCK | O_TRUNC), 0},
{ (kernel_ulong_t) (0xfacef157deade71cULL & ~O_NONBLOCK) | O_TRUNC,
"O_TRUNC", 0, 0xdeade71c & ~(O_NONBLOCK | O_TRUNC)},
{ -1LL, "O_NONBLOCK|O_TRUNC", 0, -1U & ~(O_NONBLOCK | O_TRUNC)},
};
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_delete_module, NULL, F8ILL_KULONG_MASK);
printf("delete_module(NULL, 0) = %s\n", sprintrc(rc));
rc = syscall(__NR_delete_module, bogus_param1, flags[0].val);
errstr = sprintrc(rc);
printf("delete_module(\"");
print_str(PARAM1_BASE, MAX_STRLEN, false);
printf("\"..., %s) = %s\n", flags[0].str, errstr);
bogus_param1[PARAM1_LEN - 1] = '\0';
rc = syscall(__NR_delete_module, bogus_param1, flags[1].val);
errstr = sprintrc(rc);
printf("delete_module(\"");
print_str(PARAM1_BASE, MAX_STRLEN, false);
printf("\", %s) = %s\n", flags[1].str, errstr);
rc = syscall(__NR_delete_module, bogus_param2 + PARAM2_LEN,
flags[2].val);
printf("delete_module(%p, %#x%s) = %s\n",
bogus_param2 + PARAM2_LEN, flags[2].val_prefix,
flags[2].str, sprintrc(rc));
rc = syscall(__NR_delete_module, bogus_param2, flags[3].val);
printf("delete_module(%p, %s|%#x) = %s\n",
bogus_param2, flags[3].str, flags[3].val_suffix, sprintrc(rc));
bogus_param2[PARAM2_LEN - 1] = '\0';
rc = syscall(__NR_delete_module, bogus_param2, flags[4].val);
errstr = sprintrc(rc);
printf("delete_module(\"");
print_str(PARAM2_BASE, PARAM2_LEN - 1, true);
printf("\", %s|%#x) = %s\n", flags[4].str, flags[4].val_suffix, errstr);
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_delete_module");
#endif
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