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Added I-Am-Router-To-Network demo. Untested.

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This commit is contained in:
skarg
2008-08-20 22:17:43 +00:00
parent 2e6dc739a6
commit 5c6f263a16
6 changed files with 175 additions and 64 deletions
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bacnet-stack/Makefile
+8 -4
View File
@@ -1,5 +1,6 @@
all: library readprop writeprop readfile writefile reinit server dcc \
whohas whois whoisrouter ucov timesync epics mstpcap
whohas whois ucov timesync epics mstpcap \
whoisrouter iamrouter
@echo "utilities are in the bin directory"
clean: lib/Makefile\
@@ -72,9 +73,12 @@ ucov: demo/ucov/Makefile
whois: demo/whois/Makefile
( cd demo/whois ; make ; cp bacwi ../../bin )
whoisrouter: demo/whoisrouter/Makefile
( cd demo/whoisrouter ; make ; cp bacwir ../../bin )
mstpcap: demo/mstpcap/Makefile
( cd demo/mstpcap ; make clean all; cp mstpcap ../../bin )
whoisrouter: demo/whoisrouter/Makefile
( cd demo/whoisrouter ; make ; cp bacwir ../../bin )
iamrouter: demo/iamrouter/Makefile
( cd demo/iamrouter ; make ; cp baciamr ../../bin )
bacnet-stack/demo/handler/s_router.c
+148 -13
View File
@@ -41,8 +41,24 @@
#include "handlers.h"
#include "txbuf.h"
/* find a specific device, or use -1 for limit if you want unlimited */
void Send_WhoIsRouterToNetwork(
static void npdu_encode_npdu_network(
BACNET_NPDU_DATA * npdu_data,
BACNET_NETWORK_MESSAGE_TYPE network_message_type,
BACNET_MESSAGE_PRIORITY priority)
{
if (npdu_data) {
npdu_data->data_expecting_reply = false;
npdu_data->protocol_version = BACNET_PROTOCOL_VERSION;
npdu_data->network_layer_message = true; /* false if APDU */
npdu_data->network_message_type = network_message_type; /* optional */
npdu_data->vendor_id = 0; /* optional, if net message type is > 0x80 */
npdu_data->priority = priority;
npdu_data->hop_count = 255;
}
}
/* find a specific router, or use -1 for limit if you want unlimited */
void Send_Who_Is_Router_To_Network(
int dnet)
{
int len = 0;
@@ -51,14 +67,9 @@ void Send_WhoIsRouterToNetwork(
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
/* encode the NPDU portion of the packet */
npdu_data.data_expecting_reply = false;
npdu_data.protocol_version = BACNET_PROTOCOL_VERSION;
npdu_data.network_layer_message = true; /* false if APDU */
npdu_data.network_message_type = NETWORK_MESSAGE_WHO_IS_ROUTER_TO_NETWORK;
npdu_data.vendor_id = 0; /* optional, if net message type is > 0x80 */
npdu_data.priority = MESSAGE_PRIORITY_NORMAL;
npdu_data.hop_count = 0;
npdu_encode_npdu_network(&npdu_data,
NETWORK_MESSAGE_WHO_IS_ROUTER_TO_NETWORK,
MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], NULL, NULL, &npdu_data);
/* encode the optional DNET portion of the packet */
@@ -66,14 +77,14 @@ void Send_WhoIsRouterToNetwork(
len = encode_unsigned16(&Handler_Transmit_Buffer[pdu_len], dnet);
pdu_len += len;
#if PRINT_ENABLED
fprintf(stderr, "Send Who-Is-Router-To-Network Request to %u\n",dnet);
fprintf(stderr, "Send Who-Is-Router-To-Network message to %u\n",dnet);
#endif
} else {
#if PRINT_ENABLED
fprintf(stderr, "Send Who-Is-Router-To-Network Request\n");
fprintf(stderr, "Send Who-Is-Router-To-Network message\n");
#endif
}
/* Who-Is-Router-To-Network is a global broadcast */
/* Who-Is-Router-To-Network may be unicast or broadcast */
datalink_get_broadcast_address(&dest);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data, &Handler_Transmit_Buffer[0],
@@ -84,3 +95,127 @@ void Send_WhoIsRouterToNetwork(
strerror(errno));
#endif
}
/* pDNET_list: list of networks for which I am a router,
terminated with -1 */
void Send_I_Am_Router_To_Network(
const int *pDNET_list)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
uint16_t dnet = 0;
npdu_encode_npdu_network(&npdu_data,
NETWORK_MESSAGE_I_AM_ROUTER_TO_NETWORK,
MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], NULL, NULL, &npdu_data);
/* encode the optional DNET list portion of the packet */
#if PRINT_ENABLED
fprintf(stderr, "Send I-Am-Router-To-Network message to:\n");
#endif
while ((*pDNET_list) != -1) {
dnet = (*pDNET_list);
len = encode_unsigned16(&Handler_Transmit_Buffer[pdu_len], dnet);
pdu_len += len;
pDNET_list++;
#if PRINT_ENABLED
fprintf(stderr, "%u\n",dnet);
#endif
}
/* I-Am-Router-To-Network shall always be transmitted with
a broadcast MAC address. */
datalink_get_broadcast_address(&dest);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to send I-Am-Router-To-Network message (%s)!\n",
strerror(errno));
#endif
}
/* */
void Send_Initialize_Routing_Table(
BACNET_ROUTER_PORT *router_port_list)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
uint8_t number_of_ports = 0;
BACNET_ROUTER_PORT *router_port;
unsigned i = 0; /* counter */
npdu_encode_npdu_network(&npdu_data,
NETWORK_MESSAGE_INIT_RT_TABLE,
MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], NULL, NULL, &npdu_data);
/* encode the optional port_info list portion of the packet */
router_port = router_port_list;
while (router_port) {
number_of_ports++;
router_port = router_port->next;
}
Handler_Transmit_Buffer[pdu_len++] = number_of_ports;
if (number_of_ports) {
router_port = router_port_list;
while (router_port) {
len = encode_unsigned16(
&Handler_Transmit_Buffer[pdu_len],
router_port->dnet);
pdu_len += len;
Handler_Transmit_Buffer[pdu_len++] = router_port->id;
Handler_Transmit_Buffer[pdu_len++] = router_port->info_len;
for (i = 0; i < router_port->info_len; i++) {
Handler_Transmit_Buffer[pdu_len++] = router_port->info[i];
}
router_port = router_port->next;
}
}
/* Init Routing Table shall always be transmitted with
a broadcast MAC address. */
datalink_get_broadcast_address(&dest);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to send Initialize-Routing-Table message (%s)!\n",
strerror(errno));
#endif
}
/* */
void Send_Initialize_Routing_Table_Ack(
const int *port_info)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
uint16_t dnet = 0;
npdu_encode_npdu_network(&npdu_data,
NETWORK_MESSAGE_INIT_RT_TABLE_ACK,
MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], NULL, NULL, &npdu_data);
/* encode the optional DNET list portion of the packet */
datalink_get_broadcast_address(&dest);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send I-Am-Router-To-Network message (%s)!\n",
strerror(errno));
#endif
}
bacnet-stack/demo/whoisrouter/main.c
+2 -41
View File
@@ -1,6 +1,6 @@
/**************************************************************************
*
* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
* Copyright (C) 2008 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
@@ -102,44 +102,6 @@ static void Init_Service_Handlers(
apdu_set_reject_handler(MyRejectHandler);
}
static void print_address_cache(
void)
{
int i, j;
BACNET_ADDRESS address;
uint32_t device_id = 0;
unsigned max_apdu = 0;
printf("%-7s %-14s %-4s %-5s %-14s\n", "Device", "MAC", "APDU", "SNET",
"SADR");
printf("------- -------------- ---- ----- --------------\n");
for (i = 0; i < MAX_ADDRESS_CACHE; i++) {
if (address_get_by_index(i, &device_id, &max_apdu, &address)) {
printf("%7u ", device_id);
for (j = 0; j < 7; j++) {
if (j < address.mac_len) {
printf("%02X", address.mac[j]);
} else {
printf(" ");
}
}
printf(" %4hu ", max_apdu);
printf("%5hu ", address.net);
if (address.net) {
for (j = 0; j < 7; j++) {
if (j < address.len) {
printf("%02X", address.adr[j]);
} else {
printf(" ");
}
printf(" ");
}
}
printf("\n");
}
}
}
static void Init_DataLink(
void)
{
@@ -274,7 +236,7 @@ int main(int argc, char *argv[]) {
last_seconds = time(NULL);
timeout_seconds = apdu_timeout() / 1000;
/* send the request */
Send_WhoIsRouterToNetwork(Target_Router_Network);
Send_Who_Is_Router_To_Network(Target_Router_Network);
/* loop forever */
for (;;) {
/* increment timer - exit if timed out */
@@ -300,7 +262,6 @@ int main(int argc, char *argv[]) {
/* keep track of time for next check */
last_seconds = current_seconds;
}
print_address_cache();
return 0;
}
bacnet-stack/include/client.h
+2 -2
View File
@@ -108,9 +108,9 @@ extern "C" {
int fileStartPosition,
BACNET_OCTET_STRING * fileData);
void Send_WhoIsRouterToNetwork(
void Send_Who_Is_Router_To_Network(
int dnet);
#ifdef __cplusplus
}
#endif /* __cplusplus */
bacnet-stack/include/npdu.h
+10
View File
@@ -52,6 +52,16 @@ typedef struct bacnet_npdu_data_t {
uint8_t hop_count;
} BACNET_NPDU_DATA;
/* Port Info structure used by Routers */
struct router_port_t;
typedef struct router_port_t {
uint16_t dnet;
uint8_t id;
uint8_t info[256]; /* size could be 1-255 */
uint8_t info_len;
struct router_port_t *next; /* linked list */
} BACNET_ROUTER_PORT;
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
bacnet-stack/src/npdu.c
+5 -4
View File
@@ -182,7 +182,7 @@ int npdu_encode_pdu(
/* destined for a remote network, i.e., if DNET is present. */
/* This is a one-octet field that is initialized to a value of 0xff. */
if (dest && dest->net) {
npdu[len] = 0xFF;
npdu[len] = npdu_data->hop_count;
len++;
}
if (npdu_data->network_layer_message) {
@@ -243,7 +243,7 @@ void npdu_encode_npdu_data(
npdu_data->network_message_type = NETWORK_MESSAGE_INVALID; /* optional */
npdu_data->vendor_id = 0; /* optional, if net message type is > 0x80 */
npdu_data->priority = priority;
npdu_data->hop_count = 0;
npdu_data->hop_count = 255;
}
}
@@ -349,10 +349,11 @@ int npdu_decode(
/* The Hop Count field shall be present only if the message is */
/* destined for a remote network, i.e., if DNET is present. */
/* This is a one-octet field that is initialized to a value of 0xff. */
if (dest_net)
if (dest_net) {
npdu_data->hop_count = npdu[len++];
else
} else {
npdu_data->hop_count = 0;
}
/* Indicates that the NSDU conveys a network layer message. */
/* Message Type field is present. */
if (npdu_data->network_layer_message) {