1 /* 2 * Check decoding of request_key syscall. 3 * 4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr (at) 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 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 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 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[] = { '\16', '\17', '\20', '\21', '\22' }; 73 74 char *bogus_type = tail_memdup(unterminated1, sizeof(unterminated1)); 75 char *bogus_desc = tail_memdup(unterminated2, sizeof(unterminated2)); 76 char *bogus_info = tail_memdup(unterminated3, sizeof(unterminated3)); 77 78 unsigned i; 79 unsigned j; 80 unsigned k; 81 unsigned l; 82 83 struct { 84 const char *type; 85 const char *str; 86 } types[] = { 87 { ARG_STR(NULL) }, 88 { bogus_type + sizeof(unterminated1), NULL }, 89 { bogus_type, NULL }, 90 { ARG_STR("\20\21\22\23\24") }, 91 { ARG_STR("user") }, 92 }; 93 94 struct { 95 const char *desc; 96 const char *str; 97 } descs[] = { 98 { ARG_STR(NULL) }, 99 { bogus_desc + sizeof(unterminated2), NULL }, 100 { bogus_desc, NULL }, 101 { ARG_STR("\25\26\27\30\31") }, 102 { ARG_STR("desc") }, 103 { "overly long description", _STR("overly long ") "..." }, 104 }; 105 106 struct { 107 const char *info; 108 const char *str; 109 } infos[] = { 110 { ARG_STR(NULL) }, 111 { bogus_info + sizeof(unterminated3), NULL }, 112 { bogus_info, NULL }, 113 { ARG_STR("\32\33\34\35\36") }, 114 { ARG_STR("info") }, 115 { "overly long info", _STR("overly long ") "..." }, 116 }; 117 118 struct { 119 uint32_t keyring; 120 const char *str; 121 } keyrings[] = { 122 { ARG_STR(0) }, 123 { ARG_STR(1234567890) }, 124 { ARG_STR(-1234567890) }, 125 { -1, "KEY_SPEC_THREAD_KEYRING" }, 126 }; 127 128 for (i = 0; i < ARRAY_SIZE(types); i++) 129 for (j = 0; j < ARRAY_SIZE(descs); j++) 130 for (k = 0; k < ARRAY_SIZE(infos); k++) 131 for (l = 0; l < ARRAY_SIZE(keyrings); l++) 132 do_request_key( 133 types[i].type, types[i].str, 134 descs[j].desc, descs[j].str, 135 infos[k].info, infos[k].str, 136 keyrings[l].keyring, 137 keyrings[l].str); 138 139 puts("+++ exited with 0 +++"); 140 141 return 0; 142 } 143 144 #else 145 146 SKIP_MAIN_UNDEFINED("__NR_request_key"); 147 148 #endif 149
