1 /*- 2 * provider.c 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 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 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: provider.c,v 1.5 2004/01/13 01:54:39 max Exp $ 31 * $FreeBSD$ 32 */ 33 34 #include <sys/queue.h> 35 #define L2CAP_SOCKET_CHECKED 36 #include <bluetooth.h> 37 #include <string.h> 38 #include <stdlib.h> 39 #include "profile.h" 40 #include "provider.h" 41 42 static TAILQ_HEAD(, provider) providers = TAILQ_HEAD_INITIALIZER(providers); 43 static uint32_t change_state = 0; 44 static uint32_t handle = 0; 45 46 /* 47 * Register Service Discovery provider. 48 * Should not be called more the once. 49 */ 50 51 int32_t 52 provider_register_sd(int32_t fd) 53 { 54 extern profile_t sd_profile_descriptor; 55 extern profile_t bgd_profile_descriptor; 56 57 provider_p sd = calloc(1, sizeof(*sd)); 58 provider_p bgd = calloc(1, sizeof(*bgd)); 59 60 if (sd == NULL || bgd == NULL) { 61 if (sd != NULL) 62 free(sd); 63 64 if (bgd != NULL) 65 free(bgd); 66 67 return (-1); 68 } 69 70 sd->profile = &sd_profile_descriptor; 71 bgd->handle = 0; 72 sd->fd = fd; 73 TAILQ_INSERT_HEAD(&providers, sd, provider_next); 74 75 bgd->profile = &bgd_profile_descriptor; 76 bgd->handle = 1; 77 sd->fd = fd; 78 TAILQ_INSERT_AFTER(&providers, sd, bgd, provider_next); 79 80 change_state ++; 81 82 return (0); 83 } 84 85 /* 86 * Register new provider for a given profile, bdaddr and session. 87 */ 88 89 provider_p 90 provider_register(profile_p const profile, bdaddr_p const bdaddr, int32_t fd, 91 uint8_t const *data, uint32_t datalen) 92 { 93 provider_p provider = calloc(1, sizeof(*provider)); 94 95 if (provider != NULL) { 96 provider->data = malloc(datalen); 97 if (provider->data != NULL) { 98 provider->profile = profile; 99 memcpy(provider->data, data, datalen); 100 101 /* 102 * Record handles 0x0 and 0x1 are reserved 103 * for SDP itself 104 */ 105 106 if (++ handle <= 1) 107 handle = 2; 108 109 provider->handle = handle; 110 111 memcpy(&provider->bdaddr, bdaddr, 112 sizeof(provider->bdaddr)); 113 provider->fd = fd; 114 115 TAILQ_INSERT_TAIL(&providers, provider, provider_next); 116 change_state ++; 117 } else { 118 free(provider); 119 provider = NULL; 120 } 121 } 122 123 return (provider); 124 } 125 126 /* 127 * Unregister provider 128 */ 129 130 void 131 provider_unregister(provider_p provider) 132 { 133 TAILQ_REMOVE(&providers, provider, provider_next); 134 if (provider->data != NULL) 135 free(provider->data); 136 free(provider); 137 change_state ++; 138 } 139 140 /* 141 * Update provider data 142 */ 143 144 int32_t 145 provider_update(provider_p provider, uint8_t const *data, uint32_t datalen) 146 { 147 uint8_t *new_data = (uint8_t *) realloc(provider->data, datalen); 148 149 if (new_data == NULL) 150 return (-1); 151 152 memcpy(new_data, data, datalen); 153 provider->data = new_data; 154 155 return (0); 156 } 157 158 /* 159 * Get a provider for given record handle 160 */ 161 162 provider_p 163 provider_by_handle(uint32_t handle) 164 { 165 provider_p provider = NULL; 166 167 TAILQ_FOREACH(provider, &providers, provider_next) 168 if (provider->handle == handle) 169 break; 170 171 return (provider); 172 } 173 174 /* 175 * Cursor access 176 */ 177 178 provider_p 179 provider_get_first(void) 180 { 181 return (TAILQ_FIRST(&providers)); 182 } 183 184 provider_p 185 provider_get_next(provider_p provider) 186 { 187 return (TAILQ_NEXT(provider, provider_next)); 188 } 189 190 /* 191 * Return change state 192 */ 193 194 uint32_t 195 provider_get_change_state(void) 196 { 197 return (change_state); 198 } 199 200