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experimental command-line tool for sending raw (hex) frames to a select mbus unit

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This commit is contained in:
Robert Johansson 2012-10-23 21:34:38 +09:00
parent 8fb44554c5
commit ad6297cb05
2 changed files with 203 additions and 1 deletions
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7
bin/Makefile.am
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@ -17,7 +17,7 @@ bin_PROGRAMS = mbus-tcp-scan mbus-tcp-request-data mbus-tcp-request-data-multi
mbus-tcp-select-secondary mbus-tcp-scan-secondary \
mbus-serial-scan mbus-serial-request-data mbus-serial-request-data-multi-reply \
mbus-serial-select-secondary mbus-serial-scan-secondary \
mbus-serial-switch-baudrate
mbus-serial-switch-baudrate mbus-tcp-raw-send
# tcp
mbus_tcp_scan_LDFLAGS = -L$(top_builddir)/mbus
@ -40,6 +40,11 @@ mbus_tcp_scan_secondary_LDFLAGS = -L$(top_builddir)/mbus
mbus_tcp_scan_secondary_LDADD = -lmbus -lm
mbus_tcp_scan_secondary_SOURCES = mbus-tcp-scan-secondary.c
mbus_tcp_raw_send_LDFLAGS = -L$(top_builddir)/mbus
mbus_tcp_raw_send_LDADD = -lmbus -lm
mbus_tcp_raw_send_SOURCES = mbus-tcp-raw-send.c
# serial
mbus_serial_scan_LDFLAGS = -L$(top_builddir)/mbus
mbus_serial_scan_LDADD = -lmbus -lm

197
bin/mbus-tcp-raw-send.c Normal file
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@ -0,0 +1,197 @@
//------------------------------------------------------------------------------
// Copyright (C) 2012, Robert Johansson, Raditex AB
// All rights reserved.
//
// rSCADA
// http://www.rSCADA.se
// info@rscada.se
//
//------------------------------------------------------------------------------
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <mbus/mbus.h>
static int debug = 0;
//------------------------------------------------------------------------------
// Execution starts here:
//------------------------------------------------------------------------------
int
main(int argc, char **argv)
{
mbus_frame reply, request;
mbus_frame_data reply_data;
mbus_handle *handle = NULL;
char *host, *addr_str, matching_addr[16], *file = NULL;
int port, address, fd, len, i, result;
u_char raw_buff[4096], buff[4096], *ptr, *endptr;
memset((void *)&reply, 0, sizeof(mbus_frame));
memset((void *)&reply_data, 0, sizeof(mbus_frame_data));
if (argc == 4)
{
host = argv[1];
port = atoi(argv[2]);
addr_str = argv[3];
debug = 0;
}
else if (argc == 5 && strcmp(argv[1], "-d") == 0)
{
host = argv[2];
port = atoi(argv[3]);
addr_str = argv[4];
debug = 1;
}
else if (argc == 5)
{
host = argv[1];
port = atoi(argv[2]);
addr_str = argv[3];
file = argv[4];
debug = 0;
}
else if (argc == 6 && strcmp(argv[1], "-d") == 0)
{
host = argv[2];
port = atoi(argv[3]);
addr_str = argv[4];
file = argv[5];
debug = 1;
}
else
{
fprintf(stderr, "usage: %s [-d] host port mbus-address [file]\n", argv[0]);
fprintf(stderr, " optional flag -d for debug printout\n");
fprintf(stderr, " optional argument file for file. if omitted read from stdin\n");
return 0;
}
if (debug)
{
mbus_register_send_event(&mbus_dump_send_event);
mbus_register_recv_event(&mbus_dump_recv_event);
}
if ((handle = mbus_context_tcp(host, port)) == NULL)
{
fprintf(stderr, "Could not initialize M-Bus context: %s\n", mbus_error_str());
return 1;
}
if (mbus_connect(handle) == -1)
{
fprintf(stderr, "Failed to setup connection to M-bus gateway\n");
return 1;
}
if (strlen(addr_str) == 16)
{
// secondary addressing
int ret;
ret = mbus_select_secondary_address(handle, addr_str);
if (ret == MBUS_PROBE_COLLISION)
{
fprintf(stderr, "%s: Error: The address mask [%s] matches more than one device.\n", __PRETTY_FUNCTION__, addr_str);
return 1;
}
else if (ret == MBUS_PROBE_NOTHING)
{
fprintf(stderr, "%s: Error: The selected secondary address does not match any device [%s].\n", __PRETTY_FUNCTION__, addr_str);
return 1;
}
else if (ret == MBUS_PROBE_ERROR)
{
fprintf(stderr, "%s: Error: Failed to select secondary address [%s].\n", __PRETTY_FUNCTION__, addr_str);
return 1;
}
address = 253;
}
else
{
// primary addressing
address = atoi(addr_str);
}
//
// read hex data from file or stdin
//
if (file != NULL)
{
if ((fd = open(file, O_RDONLY, 0)) == -1)
{
fprintf(stderr, "%s: failed to open '%s'\n", __PRETTY_FUNCTION__, file);
return 1;
}
}
else
{
fd = 0; // stdin
}
memset(raw_buff, 0, sizeof(raw_buff));
len = read(fd, raw_buff, sizeof(raw_buff));
close(fd);
ptr = 0;
endptr = raw_buff;
for (i = 0; i < sizeof(buff)-1; i++)
{
ptr = endptr;
buff[i] = (u_char)strtol(ptr, (char **)&endptr, 16);
// abort at non hex value
if (ptr == endptr)
break;
}
//
// attempt to parse the input data
//
result = mbus_parse(&request, buff, i);
if (result < 0)
{
fprintf(stderr, "mbus_parse: %s\n", mbus_error_str());
return 1;
}
else if (result > 0)
{
fprintf(stderr, "mbus_parse: need %d more bytes\n", result);
return 1;
}
//
// send the request
//
if (mbus_send_frame(handle, &request) == -1)
{
fprintf(stderr, "Failed to send mbus frame: %s\n", mbus_error_str());
return 1;
}
//
// this should be option:
//
if (mbus_recv_frame(handle, &reply) != MBUS_RECV_RESULT_OK)
{
fprintf(stderr, "Failed to receive M-Bus response frame: %s\n", mbus_error_str());
return 1;
}
mbus_disconnect(handle);
mbus_context_free(handle);
return 0;
}