1 /*- 2 * scr.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: scr.c,v 1.1 2004/01/13 01:54:39 max Exp $ 31 */ 32 33 #include <sys/queue.h> 34 #define L2CAP_SOCKET_CHECKED 35 #include <bluetooth.h> 36 #include <errno.h> 37 #include <sdp.h> 38 #include <string.h> 39 #include "profile.h" 40 #include "provider.h" 41 #include "server.h" 42 43 /* 44 * Prepare Service Change response 45 */ 46 47 int32_t 48 server_prepare_service_change_response(server_p srv, int32_t fd) 49 { 50 uint8_t const *req = srv->req + sizeof(sdp_pdu_t); 51 uint8_t const *req_end = req + ((sdp_pdu_p)(srv->req))->len; 52 uint8_t *rsp = srv->fdidx[fd].rsp; 53 54 provider_t *provider = NULL; 55 uint32_t handle; 56 57 /* 58 * Minimal Service Change Request 59 * 60 * value32 - handle 4 bytes 61 */ 62 63 if (!srv->fdidx[fd].control || 64 !srv->fdidx[fd].priv || req_end - req < 4) 65 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 66 67 /* Get handle */ 68 SDP_GET32(handle, req); 69 70 /* Lookup provider */ 71 provider = provider_by_handle(handle); 72 if (provider == NULL || provider->fd != fd) 73 return (SDP_ERROR_CODE_INVALID_SERVICE_RECORD_HANDLE); 74 75 /* Validate user data */ 76 if (req_end - req < provider->profile->dsize || 77 provider->profile->valid == NULL || 78 (provider->profile->valid)(req, req_end - req) == 0) 79 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 80 81 /* Update provider */ 82 if (provider_update(provider, req, req_end - req) < 0) 83 return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES); 84 85 SDP_PUT16(0, rsp); 86 87 /* Set reply size */ 88 srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t); 89 srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp; 90 srv->fdidx[fd].rsp_cs = 0; 91 92 return (0); 93 } 94 95