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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/sdp.h>
#include "att.h"
const char *att_ecode2str(uint8_t status)
{
switch (status) {
case ATT_ECODE_INVALID_HANDLE:
return "Invalid handle";
case ATT_ECODE_READ_NOT_PERM:
return "Atribute can't be read";
case ATT_ECODE_WRITE_NOT_PERM:
return "Attribute can't be written";
case ATT_ECODE_INVALID_PDU:
return "Attribute PDU was invalid";
case ATT_ECODE_INSUFF_AUTHEN:
return "Attribute requires authentication before read/write";
case ATT_ECODE_REQ_NOT_SUPP:
return "Server doesn't support the request received";
case ATT_ECODE_INVALID_OFFSET:
return "Offset past the end of the attribute";
case ATT_ECODE_INSUFF_AUTHO:
return "Attribute requires authorization before read/write";
case ATT_ECODE_PREP_QUEUE_FULL:
return "Too many prepare writes have been queued";
case ATT_ECODE_ATTR_NOT_FOUND:
return "No attribute found within the given range";
case ATT_ECODE_ATTR_NOT_LONG:
return "Attribute can't be read/written using Read Blob Req";
case ATT_ECODE_INSUFF_ENCR_KEY_SIZE:
return "Encryption Key Size is insufficient";
case ATT_ECODE_INVAL_ATTR_VALUE_LEN:
return "Attribute value length is invalid";
case ATT_ECODE_UNLIKELY:
return "Request attribute has encountered an unlikely error";
case ATT_ECODE_INSUFF_ENC:
return "Encryption required before read/write";
case ATT_ECODE_UNSUPP_GRP_SIZE:
return "Attribute type is not a supported grouping attribute";
case ATT_ECODE_INSUFF_RESOURCES:
return "Insufficient Resources to complete the request";
case ATT_ECODE_IO:
return "Internal application error: I/O";
default:
return "Unexpected error code";
}
}
void att_data_list_free(struct att_data_list *list)
{
int i;
for (i = 0; i < list->num; i++)
free(list->data[i]);
free(list->data);
free(list);
}
uint16_t att_read_by_grp_type_encode(uint16_t start, uint16_t end, uuid_t *uuid,
uint8_t *pdu, int len)
{
uint16_t *p16;
/* FIXME: UUID128 is not supported */
if (!uuid)
return 0;
if (uuid->type != SDP_UUID16)
return 0;
if (len < 7)
return 0;
pdu[0] = ATT_OP_READ_BY_GROUP_REQ;
p16 = (void *) &pdu[1];
*p16 = htobs(start);
p16++;
*p16 = htobs(end);
p16++;
*p16 = htobs(uuid->value.uuid16);
return 7;
}
struct att_data_list *att_read_by_grp_type_decode(const uint8_t *pdu, int len)
{
struct att_data_list *list;
const uint8_t *ptr;
int i;
if (pdu[0] != ATT_OP_READ_BY_GROUP_RESP)
return NULL;
list = malloc(sizeof(struct att_data_list));
list->len = pdu[1];
list->num = len / list->len;
list->data = malloc(sizeof(uint8_t *) * list->num);
ptr = &pdu[2];
for (i = 0; i < list->num; i++) {
list->data[i] = malloc(sizeof(uint8_t) * list->len);
memcpy(list->data[i], ptr, list->len);
ptr += list->len;
}
return list;
}
uint16_t att_find_by_type_encode(uint16_t start, uint16_t end, uuid_t *uuid,
uint8_t *pdu, int len)
{
return 0;
}
uint16_t att_read_by_type_encode(uint16_t start, uint16_t end, uuid_t *uuid,
uint8_t *pdu, int len)
{
uint16_t *p16;
/* FIXME: UUID128 is not supported */
if (!uuid)
return 0;
if (uuid->type != SDP_UUID16)
return 0;
if (len < 7)
return 0;
pdu[0] = ATT_OP_READ_BY_TYPE_REQ;
p16 = (void *) &pdu[1];
*p16 = htobs(start);
p16++;
*p16 = htobs(end);
p16++;
*p16 = htobs(uuid->value.uuid16);
return 7;
}
struct att_data_list *add_read_by_type_decode(const uint8_t *pdu, int len)
{
struct att_data_list *list;
const uint8_t *ptr;
int i;
if (pdu[0] != ATT_OP_READ_BY_TYPE_RESP)
return NULL;
list = malloc(sizeof(struct att_data_list));
list->len = pdu[1];
list->num = len / list->len;
list->data = malloc(sizeof(uint8_t *) * list->num);
ptr = &pdu[2];
for (i = 0; i < list->num; i++) {
list->data[i] = malloc(sizeof(uint8_t) * list->len);
memcpy(list->data[i], ptr, list->len);
ptr += list->len;
}
return list;
}
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