vasyl-tkhir
117 lines
2.6 KiB
C
117 lines
2.6 KiB
C
/*
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Copyright (C) 2012 Andriy Sukhynyuk, Vasyl Tkhir, Andriy Ivasiv
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "portthread.h"
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ROUTER_PORT* find_snet(
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MSGBOX_ID id) {
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ROUTER_PORT *port = head;
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while (port != NULL) {
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if (port->port_id == id)
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return port;
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port = port->next;
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}
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return NULL;
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}
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ROUTER_PORT* find_dnet(
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uint16_t net,
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BACNET_ADDRESS *addr) {
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ROUTER_PORT *port = head;
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DNET *dnet;
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// for broadcast messages no search is needed
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if (net == BACNET_BROADCAST_NETWORK)
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return port;
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while(port != NULL) {
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// check if DNET is directly connected to the router
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if (net == port->route_info.net)
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return port;
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// else search router ports DNET list
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else if (port->route_info.dnets) {
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dnet = port->route_info.dnets;
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while (dnet != NULL) {
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if (net == dnet->net) {
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if (addr) {
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memmove(&addr->len, &dnet->mac_len, 1);
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memmove(&addr->adr[0], &dnet->mac[0], MAX_MAC_LEN);
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}
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return port;
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}
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dnet = dnet->next;
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}
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}
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port = port->next;
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}
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return NULL;
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}
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void add_dnet(
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RT_ENTRY *route_info,
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uint16_t net,
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BACNET_ADDRESS addr) {
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DNET *dnet = route_info->dnets;
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DNET *tmp;
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if (dnet == NULL) {
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route_info->dnets = (DNET*)malloc(sizeof(DNET));
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memmove(&route_info->dnets->mac_len, &addr.len, 1);
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memmove(&route_info->dnets->mac[0], &addr.adr[0], MAX_MAC_LEN);
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route_info->dnets->net = net;
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route_info->dnets->state = true;
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route_info->dnets->next = NULL;
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} else {
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while (dnet != NULL) {
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if (dnet->net == net) // make sure NETs are not repeated
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return;
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tmp = dnet;
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dnet = dnet->next;
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}
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dnet = (DNET*)malloc(sizeof(DNET));
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memmove(&dnet->mac_len, &addr.len, 1);
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memmove(&dnet->mac[0], &addr.adr[0], MAX_MAC_LEN);
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dnet->net = net;
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dnet->state = true;
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dnet->next = NULL;
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tmp->next = dnet;
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}
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}
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void cleanup_dnets(
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DNET *dnets) {
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DNET *dnet = dnets;
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while(dnet != NULL) {
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dnet = dnet->next;
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free(dnets);
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dnets = dnet;
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}
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}
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