Geert Linders
f8ce70470c
* Use BACNET_OBJECT_TYPE for all object type variables.
* Fix ICC "mixing enumerated type" warnings for assignments and parameters.
* Network Port: Use enums for state structs and remove erroneous bounds checks copy-pasted from IP_Subnet_Prefix setter.
* Fix ICC "unreachable statement" warnings.
* Fix ICC "unused variable" warnings when printing is disabled.
* Fix ICC "mixing enumerated type" warnings for struct initializers { 0 } by ensuring the first member is an integer type.
* Send_GetEvent_Global: Return 0 (invalid TSM invoke ID) instead of -1 = 255 (technically valid invoke ID) on failure.
* Fix ICC "pointless comparison" warnings.
* Fix wrong import in objects.c (memset being used).
* Fix signedness warnings and inconsistencies. Include -1 = 255 check in cov_address_get().
* Add some guards for BACAPP_LIGHTING_COMMAND to avoid errors/warnings.
* RPM test fixes
* Address requested changes. (#38)
126 lines
4.5 KiB
C
126 lines
4.5 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2008 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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#include <stddef.h>
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#include <stdint.h>
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#include <errno.h>
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#include <string.h>
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#include "bacnet/config.h"
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#include "bacnet/bacdef.h"
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#include "bacnet/bacdcode.h"
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#include "bacnet/npdu.h"
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#include "bacnet/apdu.h"
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#include "bacnet/dcc.h"
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#include "bacnet/rpm.h"
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/* some demo stuff needed */
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#include "bacnet/basic/object/device.h"
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#include "bacnet/datalink/datalink.h"
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#include "bacnet/basic/binding/address.h"
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#include "bacnet/basic/tsm/tsm.h"
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#include "bacnet/basic/services.h"
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/** @file s_rpm.c Send Read Property Multiple request. */
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/** Sends a Read Property Multiple request.
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* @ingroup DSRPM
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*
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* @param pdu [out] Buffer to build the outgoing message into
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* @param max_pdu [in] Length of the pdu buffer.
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* @param device_id [in] ID of the destination device
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* @param read_access_data [in] Ptr to structure with the linked list of
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* properties to be read.
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* @return invoke id of outgoing message, or 0 if device is not bound or no tsm
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* available
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*/
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uint8_t Send_Read_Property_Multiple_Request(uint8_t *pdu,
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size_t max_pdu,
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uint32_t device_id, /* destination device */
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BACNET_READ_ACCESS_DATA *read_access_data)
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{
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BACNET_ADDRESS dest;
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BACNET_ADDRESS my_address;
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unsigned max_apdu = 0;
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uint8_t invoke_id = 0;
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bool status = false;
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int len = 0;
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int pdu_len = 0;
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#if PRINT_ENABLED
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int bytes_sent = 0;
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#endif
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BACNET_NPDU_DATA npdu_data;
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if (!dcc_communication_enabled()) {
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return 0;
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}
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/* is the device bound? */
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status = address_get_by_device(device_id, &max_apdu, &dest);
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/* is there a tsm available? */
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if (status) {
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invoke_id = tsm_next_free_invokeID();
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}
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if (invoke_id) {
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/* encode the NPDU portion of the packet */
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datalink_get_my_address(&my_address);
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npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
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pdu_len = npdu_encode_pdu(&pdu[0], &dest, &my_address, &npdu_data);
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/* encode the APDU portion of the packet */
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len = rpm_encode_apdu(
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&pdu[pdu_len], max_pdu - pdu_len, invoke_id, read_access_data);
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if (len <= 0) {
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return 0;
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}
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pdu_len += len;
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/* is it small enough for the destination to receive?
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note: if there is a bottleneck router in between
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us and the destination, we won't know unless
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we have a way to check for that and update the
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max_apdu in the address binding table. */
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if ((unsigned)pdu_len < max_apdu) {
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tsm_set_confirmed_unsegmented_transaction(
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invoke_id, &dest, &npdu_data, &pdu[0], (uint16_t)pdu_len);
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#if PRINT_ENABLED
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bytes_sent =
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#endif
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datalink_send_pdu(&dest, &npdu_data, &pdu[0], pdu_len);
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#if PRINT_ENABLED
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if (bytes_sent <= 0)
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fprintf(stderr,
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"Failed to Send ReadPropertyMultiple Request (%s)!\n",
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strerror(errno));
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#endif
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} else {
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tsm_free_invoke_id(invoke_id);
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invoke_id = 0;
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#if PRINT_ENABLED
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fprintf(stderr,
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"Failed to Send ReadPropertyMultiple Request "
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"(exceeds destination maximum APDU)!\n");
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#endif
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}
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}
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return invoke_id;
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}
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