1 /*
2 * Check decoding of request_key syscall.
3 *
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31
32 #include <asm/unistd.h>
33
34 #ifdef __NR_request_key
35
36 # include <inttypes.h>
37 # include <stdio.h>
38 # include <unistd.h>
39
40 void
print_val_str(const void * ptr,const char * str)41 print_val_str(const void *ptr, const char *str)
42 {
43 if (str)
44 printf("%s, ", str);
45 else
46 printf("%p, ", ptr);
47 }
48
49 void
do_request_key(const char * type,const char * type_str,const char * desc,const char * desc_str,const char * info,const char * info_str,int32_t keyring,const char * keyring_str)50 do_request_key(const char *type, const char *type_str, const char *desc,
51 const char *desc_str, const char *info, const char *info_str,
52 int32_t keyring, const char *keyring_str)
53 {
54 long rc = syscall(__NR_request_key, type, desc, info, keyring);
55 const char *errstr = sprintrc(rc);
56 printf("request_key(");
57 print_val_str(type, type_str);
58 print_val_str(desc, desc_str);
59 print_val_str(info, info_str);
60 if (keyring_str)
61 printf("%s", keyring_str);
62 else
63 printf("%d", keyring);
64 printf(") = %s\n", errstr);
65 }
66
67 int
main(void)68 main(void)
69 {
70 static const char unterminated1[] = { '\1', '\2', '\3', '\4', '\5' };
71 static const char unterminated2[] = { '\6', '\7', '\10', '\11', '\12' };
72 static const char unterminated3[] =
73 { '\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
147 SKIP_MAIN_UNDEFINED("__NR_request_key");
148
149 #endif
150