1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* Check decoding of pkey_alloc syscall.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016-2019 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#ifdef __NR_pkey_alloc
# include <stdio.h>
# include <unistd.h>
int
main(void)
{
static const kernel_ulong_t flags[] = {
0,
(kernel_ulong_t) 0xbadc0ded00000000ULL,
(kernel_ulong_t) 0xffff0000eeee1111ULL,
(kernel_ulong_t) 0x123456789abcdef0ULL,
};
static const struct {
kernel_ulong_t val;
const char *str;
} rights[] = {
{ (kernel_ulong_t) 0xbadc0ded00000002ULL,
sizeof(kernel_ulong_t) > sizeof(int) ?
"PKEY_DISABLE_WRITE|0xbadc0ded00000000" :
"PKEY_DISABLE_WRITE" },
{ 0xdec0ded, "PKEY_DISABLE_ACCESS|PKEY_DISABLE_EXECUTE|"
"0xdec0de8" },
{ 0x7, "PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE|"
"PKEY_DISABLE_EXECUTE" },
{ ARG_STR(0) },
{ 0xbadc0de8, "0xbadc0de8 /* PKEY_??? */" },
};
long rc;
unsigned int i;
unsigned int j;
for (i = 0; i < ARRAY_SIZE(flags); i++) {
for (j = 0; j < ARRAY_SIZE(rights); j++) {
rc = syscall(__NR_pkey_alloc, flags[i], rights[j].val);
printf("pkey_alloc(%#llx, %s) = %s\n",
(unsigned long long) flags[i], rights[j].str,
sprintrc(rc));
}
}
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_pkey_alloc");
#endif
|
