1/*
2 * Check decoding of request_key syscall.
3 *
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5 * Copyright (c) 2016-2017 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
33#include <asm/unistd.h>
34
35#ifdef __NR_request_key
36
37# include <inttypes.h>
38# include <stdio.h>
39# include <unistd.h>
40
41void
42print_val_str(const void *ptr, const char *str)
43{
44	if (str)
45		printf("%s, ", str);
46	else
47		printf("%p, ", ptr);
48}
49
50void
51do_request_key(const char *type, const char *type_str, const char *desc,
52	const char *desc_str, const char *info, const char *info_str,
53	int32_t keyring, const char *keyring_str)
54{
55	long rc = syscall(__NR_request_key, type, desc, info, keyring);
56	const char *errstr = sprintrc(rc);
57	printf("request_key(");
58	print_val_str(type, type_str);
59	print_val_str(desc, desc_str);
60	print_val_str(info, info_str);
61	if (keyring_str)
62		printf("%s", keyring_str);
63	else
64		printf("%d", keyring);
65	printf(") = %s\n", errstr);
66}
67
68int
69main(void)
70{
71	static const char unterminated1[] = { '\1', '\2', '\3', '\4', '\5' };
72	static const char unterminated2[] = { '\6', '\7', '\10', '\11', '\12' };
73	static const char unterminated3[] = { '\16', '\17', '\20', '\21', '\22' };
74
75	char *bogus_type = tail_memdup(unterminated1, sizeof(unterminated1));
76	char *bogus_desc = tail_memdup(unterminated2, sizeof(unterminated2));
77	char *bogus_info = tail_memdup(unterminated3, sizeof(unterminated3));
78
79	unsigned i;
80	unsigned j;
81	unsigned k;
82	unsigned l;
83
84	struct {
85		const char *type;
86		const char *str;
87	} types[] = {
88		{ ARG_STR(NULL) },
89		{ bogus_type + sizeof(unterminated1), NULL },
90		{ bogus_type, NULL },
91		{ ARG_STR("\20\21\22\23\24") },
92		{ ARG_STR("user") },
93	};
94
95	struct {
96		const char *desc;
97		const char *str;
98	} descs[] = {
99		{ ARG_STR(NULL) },
100		{ bogus_desc + sizeof(unterminated2), NULL },
101		{ bogus_desc, NULL },
102		{ ARG_STR("\25\26\27\30\31") },
103		{ ARG_STR("desc") },
104		{ "overly long description", _STR("overly long ") "..." },
105	};
106
107	struct {
108		const char *info;
109		const char *str;
110	} infos[] = {
111		{ ARG_STR(NULL) },
112		{ bogus_info + sizeof(unterminated3), NULL },
113		{ bogus_info, NULL },
114		{ ARG_STR("\32\33\34\35\36") },
115		{ ARG_STR("info") },
116		{ "overly long info", _STR("overly long ") "..." },
117	};
118
119	struct {
120		uint32_t keyring;
121		const char *str;
122	} keyrings[] = {
123		{ ARG_STR(0) },
124		{ ARG_STR(1234567890) },
125		{ ARG_STR(-1234567890) },
126		{ -1, "KEY_SPEC_THREAD_KEYRING" },
127	};
128
129	for (i = 0; i < ARRAY_SIZE(types); i++)
130		for (j = 0; j < ARRAY_SIZE(descs); j++)
131			for (k = 0; k < ARRAY_SIZE(infos); k++)
132				for (l = 0; l < ARRAY_SIZE(keyrings); l++)
133					do_request_key(
134						types[i].type, types[i].str,
135						descs[j].desc, descs[j].str,
136						infos[k].info, infos[k].str,
137						keyrings[l].keyring,
138						keyrings[l].str);
139
140	puts("+++ exited with 0 +++");
141
142	return 0;
143}
144
145#else
146
147SKIP_MAIN_UNDEFINED("__NR_request_key");
148
149#endif
150