1 /* $NetBSD: file.c,v 1.1 2007/11/09 21:18:25 plunky Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Iain Hibbert 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 <sys/cdefs.h> 31 __RCSID("$NetBSD: file.c,v 1.1 2007/11/09 21:18:25 plunky Exp $"); 32 33 #include <sys/stat.h> 34 #include <prop/proplib.h> 35 36 #include <bluetooth.h> 37 #include <stdbool.h> 38 #include <string.h> 39 40 #include "btkey.h" 41 42 static const char *key_file = "/var/db/bthcid.keys"; 43 44 /* 45 * List keys file. 46 */ 47 bool 48 list_file(void) 49 { 50 prop_dictionary_t db, dev; 51 prop_object_iterator_t iter; 52 prop_dictionary_keysym_t sym; 53 prop_object_t dat; 54 bdaddr_t bdaddr; 55 bool rv = false; 56 57 db = prop_dictionary_internalize_from_file(key_file); 58 if (db == NULL) 59 return false; 60 61 dev = prop_dictionary_get(db, bt_ntoa(&laddr, NULL)); 62 if (prop_object_type(dev) != PROP_TYPE_DICTIONARY) 63 goto done; 64 65 iter = prop_dictionary_iterator(dev); 66 if (iter == NULL) 67 goto done; 68 69 while ((sym = prop_object_iterator_next(iter)) != NULL) { 70 memset(&bdaddr, 0, sizeof(bdaddr)); 71 bt_aton(prop_dictionary_keysym_cstring_nocopy(sym), &bdaddr); 72 if (bdaddr_any(&bdaddr)) 73 continue; 74 75 dat = prop_dictionary_get_keysym(dev, sym); 76 if (prop_data_size(dat) != HCI_KEY_SIZE) 77 continue; 78 79 printf("\n"); 80 print_addr("bdaddr", &bdaddr); 81 print_key("file key", prop_data_data_nocopy(dat)); 82 } 83 84 prop_object_iterator_release(iter); 85 rv = true; 86 87 done: 88 prop_object_release(db); 89 return rv; 90 } 91 92 /* 93 * Read from keys file. 94 */ 95 bool 96 read_file(void) 97 { 98 prop_dictionary_t db, dev; 99 prop_object_t dat; 100 bool rv = false; 101 102 db = prop_dictionary_internalize_from_file(key_file); 103 if (db == NULL) 104 return false; 105 106 dev = prop_dictionary_get(db, bt_ntoa(&laddr, NULL)); 107 if (prop_object_type(dev) != PROP_TYPE_DICTIONARY) 108 goto done; 109 110 dat = prop_dictionary_get(dev, bt_ntoa(&raddr, NULL)); 111 if (prop_data_size(dat) != HCI_KEY_SIZE) 112 goto done; 113 114 memcpy(key, prop_data_data_nocopy(dat), HCI_KEY_SIZE); 115 rv = true; 116 117 done: 118 prop_object_release(db); 119 return rv; 120 } 121 122 /* 123 * Write to keys file. 124 */ 125 bool 126 write_file(void) 127 { 128 prop_dictionary_t db, dev; 129 prop_data_t dat; 130 mode_t mode; 131 bool rv = false; 132 133 db = prop_dictionary_internalize_from_file(key_file); 134 if (db == NULL) { 135 db = prop_dictionary_create(); 136 if (db == NULL) 137 return false; 138 } 139 140 dev = prop_dictionary_get(db, bt_ntoa(&laddr, NULL)); 141 if (dev == NULL) { 142 dev = prop_dictionary_create(); 143 if (dev == NULL) 144 goto done; 145 146 rv = prop_dictionary_set(db, bt_ntoa(&laddr, NULL), dev); 147 prop_object_release(dev); 148 if (rv == false) 149 goto done; 150 } 151 152 dat = prop_data_create_data_nocopy(key, HCI_KEY_SIZE); 153 if (dat == NULL) 154 goto done; 155 156 rv = prop_dictionary_set(dev, bt_ntoa(&raddr, NULL), dat); 157 prop_object_release(dat); 158 if (rv == false) 159 goto done; 160 161 mode = umask(S_IRWXG | S_IRWXO); 162 rv = prop_dictionary_externalize_to_file(db, key_file); 163 umask(mode); 164 165 done: 166 prop_object_release(db); 167 return rv; 168 } 169 170 /* 171 * Clear from keys file. 172 */ 173 bool 174 clear_file(void) 175 { 176 prop_dictionary_t db, dev; 177 prop_data_t dat; 178 mode_t mode; 179 bool rv = false; 180 181 db = prop_dictionary_internalize_from_file(key_file); 182 if (db == NULL) 183 return false; 184 185 dev = prop_dictionary_get(db, bt_ntoa(&laddr, NULL)); 186 if (dev == NULL) 187 goto done; 188 189 dat = prop_dictionary_get(dev, bt_ntoa(&raddr, NULL)); 190 if (prop_data_size(dat) != HCI_KEY_SIZE) 191 goto done; 192 193 prop_dictionary_remove(dev, bt_ntoa(&raddr, NULL)); 194 195 mode = umask(S_IRWXG | S_IRWXO); 196 rv = prop_dictionary_externalize_to_file(db, key_file); 197 umask(mode); 198 199 done: 200 prop_object_release(db); 201 return rv; 202 } 203