usr.sbin/sdpd/scr.c

   1 /* $NetBSD: scr.c,v 1.1 2006/06/19 15:44:56 gdamore Exp $ */
   2 /* $DragonFly: src/usr.sbin/sdpd/scr.c,v 1.1 2008/01/06 21:51:30 hasso Exp $ */
   3
   4 /*
   5  * scr.c
   6  *
   7  * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  * $Id: scr.c,v 1.2 2007/11/30 07:39:37 griffin Exp $
  32  * $FreeBSD: src/usr.sbin/bluetooth/sdpd/scr.c,v 1.2 2005/12/06 17:56:36 emax Exp $
  33  */
  34
  35 #include <sys/queue.h>
  36 #include <bluetooth.h>
  37 #include <errno.h>
  38 #include <sdp.h>
  39 #include <string.h>
  40 #include "profile.h"
  41 #include "provider.h"
  42 #include "server.h"
  43
  44 /*
  45  * Prepare Service Change response
  46  */
  47
  48 int32_t
  49 server_prepare_service_change_response(server_p srv, int32_t fd)
  50 {
  51         uint8_t const   *req = srv->req + sizeof(sdp_pdu_t);
  52         uint8_t const   *req_end = req + ((sdp_pdu_p)(srv->req))->len;
  53         uint8_t         *rsp = srv->fdidx[fd].rsp;
  54
  55         provider_t      *provider = NULL;
  56         uint32_t         handle;
  57
  58         /*
  59          * Minimal Service Change Request
  60          *
  61          * value32      - handle 4 bytes
  62          */
  63
  64         if (!srv->fdidx[fd].control ||
  65             !srv->fdidx[fd].priv || req_end - req < 4)
  66                 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
  67
  68         /* Get handle */
  69         SDP_GET32(handle, req);
  70
  71         /* Lookup provider */
  72         provider = provider_by_handle(handle);
  73         if (provider == NULL || provider->fd != fd)
  74                 return (SDP_ERROR_CODE_INVALID_SERVICE_RECORD_HANDLE);
  75
  76         /* Validate user data */
  77         if (req_end - req < provider->profile->dsize ||
  78             provider->profile->valid == NULL ||
  79             (provider->profile->valid)(req, req_end - req) == 0)
  80                 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
  81
  82         /* Update provider */
  83         if (provider_update(provider, req, req_end - req) < 0)
  84                 return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES);
  85
  86         SDP_PUT16(0, rsp);
  87
  88         /* Set reply size */
  89         srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t);
  90         srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp;
  91         srv->fdidx[fd].rsp_cs = 0;
  92
  93         return (0);
  94 }