1 /*- 2 * srr.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: srr.c,v 1.1 2004/01/13 01:54:39 max Exp $ 31 */ 32 33 #include <sys/queue.h> 34 #include <sys/uio.h> 35 #include <netinet/in.h> 36 #include <arpa/inet.h> 37 #include <assert.h> 38 #define L2CAP_SOCKET_CHECKED 39 #include <bluetooth.h> 40 #include <errno.h> 41 #include <sdp.h> 42 #include <string.h> 43 #include "profile.h" 44 #include "provider.h" 45 #include "server.h" 46 47 /* 48 * Prepare Service Register response 49 */ 50 51 int32_t 52 server_prepare_service_register_response(server_p srv, int32_t fd) 53 { 54 uint8_t const *req = srv->req + sizeof(sdp_pdu_t); 55 uint8_t const *req_end = req + ((sdp_pdu_p)(srv->req))->len; 56 uint8_t *rsp = srv->fdidx[fd].rsp; 57 58 profile_t *profile = NULL; 59 provider_t *provider = NULL; 60 bdaddr_t *bdaddr = NULL; 61 int32_t uuid; 62 63 /* 64 * Minimal Service Register Request 65 * 66 * value16 - uuid 2 bytes 67 * bdaddr - BD_ADDR 6 bytes 68 */ 69 70 if (!srv->fdidx[fd].control || 71 !srv->fdidx[fd].priv || req_end - req < 8) 72 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 73 74 /* Get ServiceClass UUID */ 75 SDP_GET16(uuid, req); 76 77 /* Get BD_ADDR */ 78 bdaddr = (bdaddr_p) req; 79 req += sizeof(*bdaddr); 80 81 /* Lookup profile descriptror */ 82 profile = profile_get_descriptor(uuid); 83 if (profile == NULL) 84 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 85 86 /* Validate user data */ 87 if (req_end - req < profile->dsize || 88 profile->valid == NULL || 89 (profile->valid)(req, req_end - req) == 0) 90 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX); 91 92 /* Register provider */ 93 provider = provider_register(profile, bdaddr, fd, req, req_end - req); 94 if (provider == NULL) 95 return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES); 96 97 SDP_PUT16(0, rsp); 98 SDP_PUT32(provider->handle, rsp); 99 100 /* Set reply size */ 101 srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t); 102 srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp; 103 srv->fdidx[fd].rsp_cs = 0; 104 105 return (0); 106 } 107 108 /* 109 * Send Service Register Response 110 */ 111 112 int32_t 113 server_send_service_register_response(server_p srv, int32_t fd) 114 { 115 struct iovec iov[2]; 116 sdp_pdu_t pdu; 117 int32_t size; 118 119 assert(srv->fdidx[fd].rsp_size < srv->fdidx[fd].rsp_limit); 120 121 pdu.pid = SDP_PDU_ERROR_RESPONSE; 122 pdu.tid = ((sdp_pdu_p)(srv->req))->tid; 123 pdu.len = htons(srv->fdidx[fd].rsp_size); 124 125 iov[0].iov_base = &pdu; 126 iov[0].iov_len = sizeof(pdu); 127 128 iov[1].iov_base = srv->fdidx[fd].rsp; 129 iov[1].iov_len = srv->fdidx[fd].rsp_size; 130 131 do { 132 size = writev(fd, (struct iovec const *) &iov, sizeof(iov)/sizeof(iov[0])); 133 } while (size < 0 && errno == EINTR); 134 135 srv->fdidx[fd].rsp_cs = 0; 136 srv->fdidx[fd].rsp_size = 0; 137 srv->fdidx[fd].rsp_limit = 0; 138 139 return ((size < 0)? errno : 0); 140 } 141 142