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/*
* Check decoding of pkey_mprotect 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"
#include <stdio.h>
#include <unistd.h>
#include <sys/mman.h>
static const char *
sprintptr(kernel_ulong_t ptr)
{
static char buf[sizeof(ptr) * 2 + sizeof("0x")];
if (ptr)
snprintf(buf, sizeof(buf), "%#llx", (unsigned long long) ptr);
else
return "NULL";
return buf;
}
int
main(void)
{
static const kernel_ulong_t ptrs[] = {
0,
(kernel_ulong_t) 0xfacebeef00000000ULL,
(kernel_ulong_t) 0xbadc0dedda7a1057ULL,
};
static const kernel_ulong_t sizes[] = {
0,
(kernel_ulong_t) 0xfacebeef00000000ULL,
(kernel_ulong_t) 0xfedcba9876543210ULL,
(kernel_ulong_t) 0x123456789abcdef0ULL,
(kernel_ulong_t) 0xbadc0dedda7a1057ULL,
};
static const struct {
kernel_ulong_t val;
const char *str;
} prots[] = {
{ ARG_STR(PROT_READ) },
/* For now, only 0x0300001f are used */
{ (kernel_ulong_t) 0xdeadfeed00ca7500ULL,
sizeof(kernel_ulong_t) > sizeof(int) ?
"0xdeadfeed00ca7500 /* PROT_??? */" :
"0xca7500 /* PROT_??? */" },
{ ARG_STR(PROT_READ|PROT_WRITE|0xface00) },
};
static const kernel_ulong_t pkeys[] = {
0,
-1LL,
(kernel_ulong_t) 0xface1e55,
(kernel_ulong_t) 0xbadc0ded00000001,
};
for (unsigned int i = 0;
i < ARRAY_SIZE(ptrs); ++i) {
for (unsigned int j = 0;
j < ARRAY_SIZE(sizes); ++j) {
for (unsigned int k = 0;
k < ARRAY_SIZE(prots); ++k) {
for (unsigned int l = 0;
l < ARRAY_SIZE(pkeys); ++l) {
long rc = syscall(__NR_pkey_mprotect,
ptrs[i], sizes[j],
prots[k].val, pkeys[l]);
printf("pkey_mprotect(%s, %llu, %s, %d)"
" = %s\n",
sprintptr(ptrs[i]),
(unsigned long long) sizes[j],
prots[k].str, (int) pkeys[l],
sprintrc(rc));
}
}
}
}
puts("+++ exited with 0 +++");
return 0;
}
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