4 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
28 * $Id: ssar.c,v 1.4 2004/01/12 22:54:31 max Exp $
32 #include <sys/queue.h>
33 #include <bluetooth.h>
41 int32_t server_prepare_attr_list(provider_p const provider,
42 uint8_t const *req, uint8_t const * const req_end,
43 uint8_t *rsp, uint8_t const * const rsp_end);
46 * Prepare SDP Service Search Attribute Response
50 server_prepare_service_search_attribute_response(server_p srv, int32_t fd)
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 uint8_t const *rsp_end = rsp + NG_L2CAP_MTU_MAXIMUM;
57 uint8_t const *sspptr = NULL, *aidptr = NULL;
60 provider_t *provider = NULL;
61 int32_t type, rsp_limit, ssplen, aidlen, cslen, cs, uuid;
64 * Minimal Service Search Attribute Request request
67 * uuid16 value16 - 3 bytes ServiceSearchPattern
68 * value16 - 2 bytes MaximumAttributeByteCount
70 * uint16 value16 - 3 bytes AttributeIDList
71 * value8 - 1 byte ContinuationState
74 if (req_end - req < 13)
75 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
77 /* Get size of ServiceSearchPattern */
82 SDP_GET8(ssplen, req);
86 SDP_GET16(ssplen, req);
90 SDP_GET32(ssplen, req);
94 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
99 /* Get MaximumAttributeByteCount */
100 if (req + 2 > req_end)
101 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
103 SDP_GET16(rsp_limit, req);
105 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
107 /* Get size of AttributeIDList */
108 if (req + 1 > req_end)
109 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
115 if (req + 1 > req_end)
116 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
118 SDP_GET8(aidlen, req);
122 if (req + 2 > req_end)
123 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
125 SDP_GET16(aidlen, req);
129 if (req + 4 > req_end)
130 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
132 SDP_GET32(aidlen, req);
136 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
141 /* Get ContinuationState */
142 if (req + 1 > req_end)
143 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
145 SDP_GET8(cslen, req);
147 if (cslen != 2 || req_end - req != 2)
148 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
154 /* Process the request. First, check continuation state */
155 if (srv->fdidx[fd].rsp_cs != cs)
156 return (SDP_ERROR_CODE_INVALID_CONTINUATION_STATE);
157 if (srv->fdidx[fd].rsp_size > 0)
161 * Service Search Attribute Response format
163 * value16 - 2 bytes AttributeListByteCount (not incl.)
164 * seq8 len16 - 3 bytes
165 * attr list - 3+ bytes AttributeLists
172 SDP_GET8(type, sspptr);
176 case SDP_DATA_UUID16:
178 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
180 SDP_GET16(uuid, sspptr);
184 case SDP_DATA_UUID32: /* XXX FIXME */
185 case SDP_DATA_UUID128: /* XXX FIXME */
187 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
191 for (provider = provider_get_first();
193 provider = provider_get_next(provider)) {
194 if (!provider_match_bdaddr(provider, &srv->req_sa.l2cap_bdaddr))
197 if (provider->profile->uuid != uuid &&
198 SDP_SERVICE_CLASS_PUBLIC_BROWSE_GROUP != uuid)
201 cs = server_prepare_attr_list(provider,
202 aidptr, aidptr + aidlen, ptr, rsp_end);
204 return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES);
210 /* Set reply size (not counting PDU header and continuation state) */
211 srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t) - 2;
212 if (srv->fdidx[fd].rsp_limit > rsp_limit)
213 srv->fdidx[fd].rsp_limit = rsp_limit;
215 srv->fdidx[fd].rsp_size = ptr - rsp;
216 srv->fdidx[fd].rsp_cs = 0;
218 /* Fix AttributeLists sequence header */
220 SDP_PUT8(SDP_DATA_SEQ16, ptr);
221 SDP_PUT16(srv->fdidx[fd].rsp_size - 3, ptr);