1 /* 2 * Check decoding of add_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 #include <asm/unistd.h> 32 #include "scno.h" 33 34 #ifdef __NR_add_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_add_key(const char *type, const char *type_str, const char *desc, 51 const char *desc_str, const char *payload, const char *payload_str, 52 size_t plen, int32_t keyring, const char *keyring_str) 53 { 54 long rc = syscall(__NR_add_key, type, desc, payload, plen, keyring); 55 const char *errstr = sprintrc(rc); 56 printf("add_key("); 57 print_val_str(type, type_str); 58 print_val_str(desc, desc_str); 59 print_val_str(payload, payload_str); 60 printf("%zu, ", plen); 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[] = 74 { '\16', '\17', '\20', '\21', '\22' }; 75 76 char *bogus_type = tail_memdup(unterminated1, sizeof(unterminated1)); 77 char *bogus_desc = tail_memdup(unterminated2, sizeof(unterminated2)); 78 char *bogus_payload = tail_memdup(unterminated3, sizeof(unterminated3)); 79 80 unsigned i; 81 unsigned j; 82 unsigned k; 83 unsigned l; 84 85 struct { 86 const char *type; 87 const char *str; 88 } types[] = { 89 { ARG_STR(NULL) }, 90 { bogus_type + sizeof(unterminated1), NULL }, 91 { bogus_type, NULL }, 92 { ARG_STR("\20\21\22\23\24") }, 93 { ARG_STR("user") }, 94 }; 95 96 struct { 97 const char *desc; 98 const char *str; 99 } descs[] = { 100 { ARG_STR(NULL) }, 101 { bogus_desc + sizeof(unterminated2), NULL }, 102 { bogus_desc, NULL }, 103 { ARG_STR("\25\26\27\30\31") }, 104 { ARG_STR("desc") }, 105 { "overly long description", _STR("overly long ") "..." }, 106 }; 107 108 struct { 109 const char *pload; 110 const char *str; 111 size_t plen; 112 } payloads[] = { 113 { ARG_STR(NULL), 0 }, 114 { bogus_payload + sizeof(unterminated3), NULL, 115 (size_t) 0xdeadbeefbadc0dedULL }, 116 { bogus_payload, _STR(""), 0 }, 117 { bogus_payload, _STR("\16\17\20\21\22"), 5 }, 118 { bogus_payload, NULL, 10 }, 119 { "overly long payload", _STR("overly long ") "...", 15 }, 120 }; 121 122 struct { 123 uint32_t keyring; 124 const char *str; 125 } keyrings[] = { 126 { ARG_STR(0) }, 127 { ARG_STR(1234567890) }, 128 { ARG_STR(-1234567890) }, 129 { -1, "KEY_SPEC_THREAD_KEYRING" }, 130 }; 131 132 for (i = 0; i < ARRAY_SIZE(types); i++) 133 for (j = 0; j < ARRAY_SIZE(descs); j++) 134 for (k = 0; k < ARRAY_SIZE(payloads); k++) 135 for (l = 0; l < ARRAY_SIZE(keyrings); l++) 136 do_add_key(types[i].type, types[i].str, 137 descs[j].desc, descs[j].str, 138 payloads[k].pload, 139 payloads[k].str, 140 payloads[k].plen, 141 keyrings[l].keyring, 142 keyrings[l].str); 143 144 puts("+++ exited with 0 +++"); 145 146 return 0; 147 } 148 149 #else 150 151 SKIP_MAIN_UNDEFINED("__NR_add_key"); 152 153 #endif 154