1 /* $NetBSD: db.c,v 1.4 2007/08/17 17:59:16 pavel Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Iain Hibbert for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __RCSID("$NetBSD: db.c,v 1.4 2007/08/17 17:59:16 pavel Exp $"); 36 37 #include <bluetooth.h> 38 #include <err.h> 39 #include <stdlib.h> 40 #include <stdbool.h> 41 42 #include <prop/proplib.h> 43 44 #include <dev/bluetooth/btdev.h> 45 #include <dev/bluetooth/bthidev.h> 46 #include <dev/bluetooth/btsco.h> 47 48 #include "btdevctl.h" 49 50 #define BTDEVCTL_PLIST "/var/db/btdevctl.plist" 51 #define BTDEVCTL_VERSION 2 52 53 static prop_dictionary_t db = NULL; 54 static bool db_flush = true; /* write db on set */ 55 56 static void db_update0(void); 57 static void db_update1(void); 58 59 /* 60 * lookup laddr/raddr/service in database and return dictionary 61 */ 62 prop_dictionary_t 63 db_get(bdaddr_t *laddr, bdaddr_t *raddr, const char *service) 64 { 65 prop_dictionary_t ldev, rdev, dev; 66 prop_object_t obj; 67 68 if (db == NULL) { 69 db = prop_dictionary_internalize_from_file(BTDEVCTL_PLIST); 70 if (db == NULL) { 71 db = prop_dictionary_create(); 72 if (db == NULL) 73 err(EXIT_FAILURE, "prop_dictionary_create"); 74 75 return NULL; 76 } else { 77 obj = prop_dictionary_get(db, "btdevctl-version"); 78 switch(prop_number_integer_value(obj)) { 79 case 0: db_update0(); 80 case 1: db_update1(); 81 case BTDEVCTL_VERSION: 82 break; 83 84 default: 85 errx(EXIT_FAILURE, "unknown btdevctl-version"); 86 } 87 } 88 } 89 90 ldev = prop_dictionary_get(db, bt_ntoa(laddr, NULL)); 91 if (prop_object_type(ldev) != PROP_TYPE_DICTIONARY) 92 return NULL; 93 94 rdev = prop_dictionary_get(ldev, bt_ntoa(raddr, NULL)); 95 if (prop_object_type(rdev) != PROP_TYPE_DICTIONARY) 96 return NULL; 97 98 dev = prop_dictionary_get(rdev, service); 99 if (prop_object_type(dev) != PROP_TYPE_DICTIONARY) 100 return NULL; 101 102 return dev; 103 } 104 105 /* 106 * store dictionary in database at laddr/raddr/service 107 */ 108 int 109 db_set(prop_dictionary_t dev, bdaddr_t *laddr, bdaddr_t *raddr, const char *service) 110 { 111 prop_dictionary_t ldev, rdev; 112 prop_number_t version; 113 114 ldev = prop_dictionary_get(db, bt_ntoa(laddr, NULL)); 115 if (ldev == NULL) { 116 ldev = prop_dictionary_create(); 117 if (ldev == NULL) 118 return 0; 119 120 if (!prop_dictionary_set(db, bt_ntoa(laddr, NULL), ldev)) 121 return 0; 122 123 prop_object_release(ldev); 124 } 125 126 rdev = prop_dictionary_get(ldev, bt_ntoa(raddr, NULL)); 127 if (rdev == NULL) { 128 rdev = prop_dictionary_create(); 129 if (rdev == NULL) 130 return 0; 131 132 if (!prop_dictionary_set(ldev, bt_ntoa(raddr, NULL), rdev)) 133 return 0; 134 135 prop_object_release(rdev); 136 } 137 138 if (!prop_dictionary_set(rdev, service, dev)) 139 return 0; 140 141 if (db_flush == true) { 142 version = prop_number_create_integer(BTDEVCTL_VERSION); 143 if (version == NULL) 144 err(EXIT_FAILURE, "prop_number_create_integer"); 145 146 if (!prop_dictionary_set(db, "btdevctl-version", version)) 147 err(EXIT_FAILURE, "prop_dictionary_set"); 148 149 prop_object_release(version); 150 151 if (!prop_dictionary_externalize_to_file(db, BTDEVCTL_PLIST)) 152 warn("%s", BTDEVCTL_PLIST); 153 } 154 155 return 1; 156 } 157 158 /* 159 * update database from version 0. This was a flat file using 160 * btdevN as an index, and local-bdaddr and remote-bdaddr stored 161 * as data objects. Step through and add them to the new dictionary. 162 * We have to generate the service, but only HID, HF and HSET 163 * were supported, so thats not too difficult. 164 */ 165 static void 166 db_update0(void) 167 { 168 prop_dictionary_t old, dev; 169 prop_dictionary_keysym_t key; 170 prop_object_iterator_t iter; 171 prop_object_t obj; 172 bdaddr_t laddr, raddr; 173 const char *service; 174 175 db_flush = false; /* no write on set */ 176 old = db; 177 178 db = prop_dictionary_create(); 179 if (db == NULL) 180 err(EXIT_FAILURE, "prop_dictionary_create"); 181 182 iter = prop_dictionary_iterator(old); 183 if (iter == NULL) 184 err(EXIT_FAILURE, "prop_dictionary_iterator"); 185 186 while ((key = prop_object_iterator_next(iter)) != NULL) { 187 dev = prop_dictionary_get_keysym(old, key); 188 if (prop_object_type(dev) != PROP_TYPE_DICTIONARY) 189 errx(EXIT_FAILURE, "invalid device dictionary"); 190 191 obj = prop_dictionary_get(dev, BTDEVladdr); 192 if (prop_data_size(obj) != sizeof(laddr)) 193 errx(EXIT_FAILURE, "invalid %s", BTDEVladdr); 194 195 bdaddr_copy(&laddr, prop_data_data_nocopy(obj)); 196 prop_dictionary_remove(dev, BTDEVladdr); 197 198 obj = prop_dictionary_get(dev, BTDEVraddr); 199 if (prop_data_size(obj) != sizeof(raddr)) 200 errx(EXIT_FAILURE, "invalid %s", BTDEVraddr); 201 202 bdaddr_copy(&raddr, prop_data_data_nocopy(obj)); 203 prop_dictionary_remove(dev, BTDEVraddr); 204 205 obj = prop_dictionary_get(dev, BTDEVtype); 206 if (prop_string_equals_cstring(obj, "bthidev")) 207 service = "HID"; 208 else if (prop_string_equals_cstring(obj, "btsco")) { 209 obj = prop_dictionary_get(dev, BTSCOlisten); 210 if (prop_bool_true(obj)) 211 service = "HF"; 212 else 213 service = "HSET"; 214 } else 215 errx(EXIT_FAILURE, "invalid %s", BTDEVtype); 216 217 if (!db_set(dev, &laddr, &raddr, service)) 218 err(EXIT_FAILURE, "service store failed"); 219 } 220 221 prop_object_iterator_release(iter); 222 prop_object_release(old); 223 224 db_flush = true; /* write on set */ 225 } 226 227 /* 228 * update database from version 1. Link Mode capability was added. 229 * By default, we request authentication for HIDs, and encryption 230 * is enabled for keyboards. 231 */ 232 static void 233 db_update1(void) 234 { 235 prop_dictionary_t ldev, rdev, srv; 236 prop_object_iterator_t iter0, iter1; 237 prop_dictionary_keysym_t key; 238 prop_object_t obj; 239 bdaddr_t bdaddr; 240 241 iter0 = prop_dictionary_iterator(db); 242 if (iter0 == NULL) 243 err(EXIT_FAILURE, "prop_dictionary_iterator"); 244 245 while ((key = prop_object_iterator_next(iter0)) != NULL) { 246 ldev = prop_dictionary_get_keysym(db, key); 247 if (prop_object_type(ldev) != PROP_TYPE_DICTIONARY 248 || !bt_aton(prop_dictionary_keysym_cstring_nocopy(key), &bdaddr)) 249 continue; 250 251 iter1 = prop_dictionary_iterator(ldev); 252 if (iter1 == NULL) 253 err(EXIT_FAILURE, "prop_dictionary_iterator"); 254 255 while ((key = prop_object_iterator_next(iter1)) != NULL) { 256 rdev = prop_dictionary_get_keysym(ldev, key); 257 if (prop_object_type(rdev) != PROP_TYPE_DICTIONARY 258 || !bt_aton(prop_dictionary_keysym_cstring_nocopy(key), &bdaddr)) 259 continue; 260 261 srv = prop_dictionary_get(rdev, "HID"); 262 if (prop_object_type(srv) != PROP_TYPE_DICTIONARY) 263 continue; 264 265 obj = prop_dictionary_get(srv, BTHIDEVdescriptor); 266 if (prop_object_type(obj) != PROP_TYPE_DATA) 267 continue; 268 269 obj = prop_string_create_cstring_nocopy(hid_mode(obj)); 270 if (obj == NULL || !prop_dictionary_set(srv, BTDEVmode, obj)) 271 err(EXIT_FAILURE, "Cannot set %s", BTDEVmode); 272 273 prop_object_release(obj); 274 } 275 276 prop_object_iterator_release(iter1); 277 } 278 279 prop_object_iterator_release(iter0); 280 } 281