freebsd-dev/usr.sbin/bluetooth/sdpd/srr.c
2015-04-07 16:48:23 +00:00

141 lines
3.9 KiB
C

/*
* srr.c
*
* Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: srr.c,v 1.1 2004/01/13 01:54:39 max Exp $
* $FreeBSD$
*/
#include <sys/queue.h>
#include <sys/uio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <assert.h>
#define L2CAP_SOCKET_CHECKED
#include <bluetooth.h>
#include <errno.h>
#include <sdp.h>
#include <string.h>
#include "profile.h"
#include "provider.h"
#include "server.h"
/*
* Prepare Service Register response
*/
int32_t
server_prepare_service_register_response(server_p srv, int32_t fd)
{
uint8_t const *req = srv->req + sizeof(sdp_pdu_t);
uint8_t const *req_end = req + ((sdp_pdu_p)(srv->req))->len;
uint8_t *rsp = srv->fdidx[fd].rsp;
profile_t *profile = NULL;
provider_t *provider = NULL;
bdaddr_t *bdaddr = NULL;
int32_t uuid;
/*
* Minimal Service Register Request
*
* value16 - uuid 2 bytes
* bdaddr - BD_ADDR 6 bytes
*/
if (!srv->fdidx[fd].control ||
!srv->fdidx[fd].priv || req_end - req < 8)
return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
/* Get ServiceClass UUID */
SDP_GET16(uuid, req);
/* Get BD_ADDR */
bdaddr = (bdaddr_p) req;
req += sizeof(*bdaddr);
/* Lookup profile descriptror */
profile = profile_get_descriptor(uuid);
if (profile == NULL)
return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
/* Validate user data */
if (req_end - req < profile->dsize ||
profile->valid == NULL ||
(profile->valid)(req, req_end - req) == 0)
return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
/* Register provider */
provider = provider_register(profile, bdaddr, fd, req, req_end - req);
if (provider == NULL)
return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES);
SDP_PUT16(0, rsp);
SDP_PUT32(provider->handle, rsp);
/* Set reply size */
srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t);
srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp;
srv->fdidx[fd].rsp_cs = 0;
return (0);
}
/*
* Send Service Register Response
*/
int32_t
server_send_service_register_response(server_p srv, int32_t fd)
{
struct iovec iov[2];
sdp_pdu_t pdu;
int32_t size;
assert(srv->fdidx[fd].rsp_size < srv->fdidx[fd].rsp_limit);
pdu.pid = SDP_PDU_ERROR_RESPONSE;
pdu.tid = ((sdp_pdu_p)(srv->req))->tid;
pdu.len = htons(srv->fdidx[fd].rsp_size);
iov[0].iov_base = &pdu;
iov[0].iov_len = sizeof(pdu);
iov[1].iov_base = srv->fdidx[fd].rsp;
iov[1].iov_len = srv->fdidx[fd].rsp_size;
do {
size = writev(fd, (struct iovec const *) &iov, sizeof(iov)/sizeof(iov[0]));
} while (size < 0 && errno == EINTR);
srv->fdidx[fd].rsp_cs = 0;
srv->fdidx[fd].rsp_size = 0;
srv->fdidx[fd].rsp_limit = 0;
return ((size < 0)? errno : 0);
}