1 /* 2 * srr.c 3 * 4 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id: srr.c,v 1.1 2004/01/13 01:54:39 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #include <sys/queue.h> 33 #include <sys/uio.h> 34 #include <netinet/in.h> 35 #include <arpa/inet.h> 36 #include <assert.h> 37 #include <bluetooth.h> 38 #include <errno.h> 39 #include <sdp.h> 40 #include <string.h> 41 #include "profile.h" 42 #include "provider.h" 43 #include "server.h" 44 45 /* 46 * Prepare Service Register response 47 */ 48 49 int32_t 50 server_prepare_service_register_response(server_p srv, int32_t fd) 51 { 52 uint8_t const *req = srv->req + sizeof(sdp_pdu_t); 53 uint8_t const *req_end = req + ((sdp_pdu_p)(srv->req))->len; 54 uint8_t *rsp = srv->fdidx[fd].rsp; 55 56 profile_t *profile = NULL; 57 provider_t *provider = NULL; 58 bdaddr_t *bdaddr = NULL; 59 int32_t uuid; 60 61 /* 62 * Minimal Service Register Request 63 * 64 * value16 - uuid 2 bytes 65 * bdaddr - BD_ADDR 6 bytes 66 */ 67 68 if (!srv->fdidx[fd].control || 69 !srv->fdidx[fd].priv || req_end - req < 8) 70 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 71 72 /* Get ServiceClass UUID */ 73 SDP_GET16(uuid, req); 74 75 /* Get BD_ADDR */ 76 bdaddr = (bdaddr_p) req; 77 req += sizeof(*bdaddr); 78 79 /* Lookup profile descriptror */ 80 profile = profile_get_descriptor(uuid); 81 if (profile == NULL) 82 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 83 84 /* Validate user data */ 85 if (req_end - req < profile->dsize || 86 profile->valid == NULL || 87 (profile->valid)(req, req_end - req) == 0) 88 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 89 90 /* Register provider */ 91 provider = provider_register(profile, bdaddr, fd, req, req_end - req); 92 if (provider == NULL) 93 return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES); 94 95 SDP_PUT16(0, rsp); 96 SDP_PUT32(provider->handle, rsp); 97 98 /* Set reply size */ 99 srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t); 100 srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp; 101 srv->fdidx[fd].rsp_cs = 0; 102 103 return (0); 104 } 105 106 /* 107 * Send Service Register Response 108 */ 109 110 int32_t 111 server_send_service_register_response(server_p srv, int32_t fd) 112 { 113 struct iovec iov[2]; 114 sdp_pdu_t pdu; 115 int32_t size; 116 117 assert(srv->fdidx[fd].rsp_size < srv->fdidx[fd].rsp_limit); 118 119 pdu.pid = SDP_PDU_ERROR_RESPONSE; 120 pdu.tid = ((sdp_pdu_p)(srv->req))->tid; 121 pdu.len = htons(srv->fdidx[fd].rsp_size); 122 123 iov[0].iov_base = &pdu; 124 iov[0].iov_len = sizeof(pdu); 125 126 iov[1].iov_base = srv->fdidx[fd].rsp; 127 iov[1].iov_len = srv->fdidx[fd].rsp_size; 128 129 do { 130 size = writev(fd, (struct iovec const *) &iov, sizeof(iov)/sizeof(iov[0])); 131 } while (size < 0 && errno == EINTR); 132 133 srv->fdidx[fd].rsp_cs = 0; 134 srv->fdidx[fd].rsp_size = 0; 135 srv->fdidx[fd].rsp_limit = 0; 136 137 return ((size < 0)? errno : 0); 138 } 139 140