1 /*
2  * Check decoding of pkey_alloc syscall.
3  *
4  * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5  * Copyright (c) 2016-2018 The strace developers.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. The name of the author may not be used to endorse or promote products
17  *    derived from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include "tests.h"
32 #include <asm/unistd.h>
33 #include "scno.h"
34 
35 #ifdef __NR_pkey_alloc
36 
37 # include <stdio.h>
38 # include <unistd.h>
39 
40 int
41 main(void)
42 {
43 	static const kernel_ulong_t flags[] = {
44 		0,
45 		(kernel_ulong_t) 0xbadc0ded00000000ULL,
46 		(kernel_ulong_t) 0xffff0000eeee1111ULL,
47 		(kernel_ulong_t) 0x123456789abcdef0ULL,
48 	};
49 	static const struct {
50 		kernel_ulong_t val;
51 		const char *str;
52 	} rights[] = {
53 		{ (kernel_ulong_t) 0xbadc0ded00000002ULL,
54 			sizeof(kernel_ulong_t) > sizeof(int) ?
55 			"PKEY_DISABLE_WRITE|0xbadc0ded00000000" :
56 			"PKEY_DISABLE_WRITE" },
57 		{ 0xdec0ded, "PKEY_DISABLE_ACCESS|PKEY_DISABLE_EXECUTE|"
58 				"0xdec0de8" },
59 		{ 0x7, "PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE|"
60 				"PKEY_DISABLE_EXECUTE" },
61 		{ ARG_STR(0) },
62 		{ 0xbadc0de8, "0xbadc0de8 /* PKEY_??? */" },
63 	};
64 
65 	long rc;
66 	unsigned int i;
67 	unsigned int j;
68 
69 	for (i = 0; i < ARRAY_SIZE(flags); i++) {
70 		for (j = 0; j < ARRAY_SIZE(rights); j++) {
71 			rc = syscall(__NR_pkey_alloc, flags[i], rights[j].val);
72 			printf("pkey_alloc(%#llx, %s) = %s\n",
73 			       (unsigned long long) flags[i], rights[j].str,
74 			       sprintrc(rc));
75 		}
76 	}
77 
78 	puts("+++ exited with 0 +++");
79 
80 	return 0;
81 }
82 
83 #else
84 
85 SKIP_MAIN_UNDEFINED("__NR_pkey_alloc");
86 
87 #endif
88