1 /* 2 * Check decoding of request_key syscall. 3 * 4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr (at) 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 41 void 42 print_val_str(const void *ptr, const char *str) 43 { 44 if (str) 45 printf("%s, ", str); 46 else 47 printf("%p, ", ptr); 48 } 49 50 void 51 do_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 68 int 69 main(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 146 147 SKIP_MAIN_UNDEFINED("__NR_request_key"); 148 149 #endif 150
