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nuttx-apps/wireless/ieee802154/i8sak/i8sak_main.c

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/****************************************************************************
* apps/wireless/ieee802154/i8sak/i8sak_main.c
* IEEE 802.15.4 Swiss Army Knife
*
* Copyright (C) 2014-2015, 2017 Gregory Nutt. All rights reserved.
* Copyright (C) 2014-2015 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* This app can be used to control an IEEE 802.15.4 device from command line.
* Example valid ieee802154 packets:
*
* Beacon request, seq number 01:
* xx xx 01
*
* Simple data packet
* from long address xx to long address yy, pan id pp for src and dest
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <nuttx/fs/ioctl.h>
#include <nuttx/wireless/ieee802154/ieee802154_ioctl.h>
#include <nuttx/wireless/ieee802154/ieee802154_mac.h>
#include "wireless/ieee802154.h"
/****************************************************************************
* Private Types
****************************************************************************/
struct i8_command_s
{
FAR const char *name;
uint8_t noptions;
CODE void *handler;
};
/* Generic form of a command handler */
typedef void (*cmd0_t)(FAR const char *devname);
typedef void (*cmd1_t)(FAR const char *devname, FAR const char *arg1);
typedef void (*cmd2_t)(FAR const char *devname, FAR const char *arg1,
FAR const char *arg2);
typedef void (*cmd3_t)(FAR const char *devname, FAR const char *arg1,
FAR const char *arg2, FAR const char *arg3);
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static int i8_tx(int fd);
static int i8_parse_payload(FAR const char *str);
static void i8_tx_cmd(FAR const char *devname, FAR const char *payload);
static void i8_sniffer_cmd(FAR const char *devname);
static void i8_blaster_cmd(FAR const char *devname, FAR const char *period_ms,
FAR const char *payload);
static int i8_sniffer_daemon(int argc, FAR char *argv[]);
static int i8_blaster_daemon(int argc, FAR char *argv[]);
/****************************************************************************
* Private Data
****************************************************************************/
static const struct i8_command_s g_i8_commands[] =
{
{"help", 0, (CODE void *)NULL},
{"tx", 1, (CODE void *)i8_tx_cmd},
{"sniffer", 0, (CODE void *)i8_sniffer_cmd},
{"blaster", 2, (CODE void *)i8_blaster_cmd},
};
#define NCOMMANDS (sizeof(g_i8_commands) / sizeof(struct i8_command_s))
uint8_t g_handle = 0;
uint8_t g_txframe[IEEE802154_MAX_MAC_PAYLOAD_SIZE];
uint16_t g_txframe_len;
int g_blaster_period = 0;
bool g_sniffer_daemon_started = false;
bool g_blaster_daemon_started = false;
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name : i8_sniffer_cmd
*
* Description :
* Starts a thread to run the sniffer in the background
****************************************************************************/
static void i8_sniffer_cmd(FAR const char *devname)
{
int ret;
FAR const char *sniffer_argv[2];
printf("i8sak: Starting sniffer_daemon\n");
if (g_sniffer_daemon_started)
{
printf("i8sak: sniffer_daemon already running\n");
return;
}
sniffer_argv[0] = devname;
sniffer_argv[1] = NULL;
ret = task_create("sniffer_daemon", CONFIG_IEEE802154_I8SAK_PRIORITY,
CONFIG_IEEE802154_I8SAK_STACKSIZE, i8_sniffer_daemon,
(FAR char * const *)sniffer_argv);
if (ret < 0)
{
fprintf(stderr, "ERROR: Failed to start sniffer_daemon\n", errno);
return;
}
printf("i8sak: sniffer_daemon started\n");
}
/****************************************************************************
* Name : i8_sniffer_daemon
*
* Description :
* Sniff for frames (Promiscuous mode)
****************************************************************************/
static int i8_sniffer_daemon(int argc, FAR char *argv[])
{
int ret, fd, i;
struct mac802154dev_rxframe_s rx;
fd = open(argv[1], O_RDWR);
if (fd < 0)
{
printf("cannot open %s, errno=%d\n", argv[1], errno);
ret = errno;
return ret;
}
printf("Listening...\n");
g_sniffer_daemon_started = true;
/* Enable promiscuous mode */
ret = ieee802154_setpromisc(fd, true);
/* Make sure receiver is always on while idle */
ret = ieee802154_setrxonidle(fd, true);
while(1)
{
ret = read(fd, &rx, sizeof(struct mac802154dev_rxframe_s));
if (ret < 0)
{
fprintf(stderr, "ERROR: read failed: %d\n", errno);
goto done;
}
printf("Frame Received:\n");
for (i = 0; i < rx.length; i++)
{
printf("%02X", rx.payload[i]);
}
printf(" \n");
fflush(stdout);
}
done:
/* Turn receiver off when idle */
ret = ieee802154_setrxonidle(fd, false);
/* Disable promiscuous mode */
ret = ieee802154_setpromisc(fd, false);
printf("sniffer_daemon: closing");
close(fd);
g_sniffer_daemon_started = false;
return OK;
}
/****************************************************************************
* Name : i8_blaster_cmd
*
* Description :
* Starts a thread to send continuous packets at a fixed interval
****************************************************************************/
static void i8_blaster_cmd(FAR const char *devname, FAR const char *period_ms,
FAR const char *payload)
{
int ret;
FAR const char *blaster_argv[2];
printf("i8sak: Starting blaster_daemon\n");
if (g_blaster_daemon_started)
{
printf("i8sak: blaster_daemon already running\n");
return;
}
blaster_argv[0] = devname;
blaster_argv[1] = NULL;
g_blaster_period = atoi(period_ms);
ret = i8_parse_payload(payload);
if (ret < 0)
{
fprintf(stderr, "ERROR:invalid hex payload\n", ret);
return;
}
ret = task_create("blaster_daemon", CONFIG_IEEE802154_I8SAK_PRIORITY,
CONFIG_IEEE802154_I8SAK_STACKSIZE, i8_blaster_daemon,
(FAR char * const *)blaster_argv);
if (ret < 0)
{
fprintf(stderr, "ERROR: Failed to start blaster_daemon", errno);
return;
}
printf("i8sak: blaster_daemon started\n");
}
/****************************************************************************
* Name : i8_blaster_daemon
*
* Description :
* Continuously transmit a packet
****************************************************************************/
static int i8_blaster_daemon(int argc, FAR char *argv[])
{
int ret, fd;
fd = open(argv[1], O_RDWR);
if (fd < 0)
{
fprintf(stderr, "ERROR:cannot open %s, errno=%d\n", argv[1], errno);
ret = errno;
return ret;
}
printf("blaster_daemon: starting\n");
g_blaster_daemon_started = true;
while(1)
{
ret = i8_tx(fd);
if (ret < 0)
{
goto done;
}
ret = usleep(g_blaster_period*1000L);
if (ret < 0)
{
goto done;
}
}
done:
printf("blaster_daemon: closing\n");
close(fd);
g_blaster_daemon_started = false;
return OK;
}
/****************************************************************************
* Name : i8_tx_cmd
*
* Description :
* Transmit a data frame.
****************************************************************************/
static void i8_tx_cmd(FAR const char *devname, FAR const char *str)
{
int ret, fd;
int i = 0;
ret = i8_parse_payload(str);
if (ret < 0)
{
fprintf(stderr, "ERROR:invalid hex payload\n", ret);
return;
}
for (i = 0; i < g_txframe_len; i++)
{
printf("%02X", g_txframe[i]);
}
fflush(stdout);
/* Open device */
fd = open(devname, O_RDWR);
if (fd < 0)
{
fprintf(stderr, "ERROR:cannot open %s, errno=%d\n", devname, errno);
return;
}
ret = i8_tx(fd);
if (ret < 0)
{
fprintf(stderr, "ERROR:Failed to transmit packet.\n", ret);
}
close(fd);
}
/****************************************************************************
* Name : i8_parse_payload
*
* Description :
* Parse string to get payload
****************************************************************************/
static int i8_parse_payload(FAR const char *str)
{
int str_len;
int i = 0;
str_len = strlen(str);
/* Each byte is represented by 2 chars */
g_txframe_len = str_len >> 1;
/* Check if the number of chars is a multiple of 2 and that the number of
* bytes does not exceed the max MAC frame payload supported */
if ((str_len & 1) || (g_txframe_len > IEEE802154_MAX_MAC_PAYLOAD_SIZE))
{
return -EINVAL;
}
/* Decode hex packet */
while (str_len > 0)
{
int dat;
if (sscanf(str, "%2x", &dat) == 1)
{
g_txframe[i++] = dat;
str += 2;
str_len -= 2;
}
else
{
return -EINVAL;
}
}
return OK;
}
/****************************************************************************
* Name : i8_tx
*
* Description :
* Transmit a data frame.
****************************************************************************/
static int i8_tx(int fd)
{
int ret;
struct mac802154dev_txframe_s tx;
/* Set an application defined handle */
tx.meta.msdu_handle = g_handle++;
/* This is a normal transaction, no special handling */
tx.meta.msdu_flags.ack_tx = 0;
tx.meta.msdu_flags.gts_tx = 0;
tx.meta.msdu_flags.indirect_tx = 0;
tx.meta.ranging = IEEE802154_NON_RANGING;
tx.meta.src_addrmode = IEEE802154_ADDRMODE_EXTENDED;
tx.meta.dest_addr.mode = IEEE802154_ADDRMODE_SHORT;
tx.meta.dest_addr.saddr = 0xFADE;
/* Each byte is represented by 2 chars */
tx.length = g_txframe_len;
tx.payload = &g_txframe[0];
ret = write(fd, &tx, sizeof(struct mac802154dev_txframe_s));
if (ret == OK)
{
printf(" Tx OK\n");
}
else
{
printf(" write: errno=%d\n",errno);
}
return ret;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: i8_showusage
*
* Description:
* Show program usage.
*
****************************************************************************/
int i8_showusage(FAR const char *progname, int exitcode)
{
fprintf(stderr, "Usage:\n", progname);
fprintf(stderr, "\t%s <op> <command> [OPTIONS]\n", progname);
fprintf(stderr, "\nWhere supported commands and [OPTIONS] appear below\n");
fprintf(stderr, "\t%s tx <devname> <hex payload>\n", progname);
fprintf(stderr, "\t%s sniffer <devname>\n", progname);
fprintf(stderr, "\t%s blaster <devname> <period (ms)> <hex payload>\n", progname);
exit(exitcode);
}
/****************************************************************************
* i8_main
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int i8_main(int argc, char *argv[])
#endif
{
FAR const char *cmdname;
FAR const char *devname;
FAR const struct i8_command_s *i8cmd;
int i;
if (argc < 2)
{
fprintf(stderr, "ERROR: Missing command\n");
i8_showusage(argv[0], EXIT_FAILURE);
}
if (argc < 3)
{
fprintf(stderr, "ERROR: Missing devname\n");
i8_showusage(argv[0], EXIT_FAILURE);
}
cmdname = argv[1];
devname = argv[2];
/* Find the command in the g_i8_command[] list */
i8cmd = NULL;
for (i = 0; i < NCOMMANDS; i++)
{
FAR const struct i8_command_s *cmd = &g_i8_commands[i];
if (strcmp(cmdname, cmd->name) == 0)
{
i8cmd = cmd;
break;
}
}
if (i8cmd == NULL)
{
fprintf(stderr, "ERROR: Unsupported command: %s\n", cmdname);
i8_showusage(argv[0], EXIT_FAILURE);
}
if (i8cmd->noptions + 1 < argc)
{
fprintf(stderr, "ERROR: Garbage at end of command ignored\n");
}
else if (i8cmd->noptions + 1 > argc)
{
fprintf(stderr, "ERROR: Missing required command options: %s\n",
cmdname);
i8_showusage(argv[0], EXIT_FAILURE);
}
/* Special case the help command which has no arguments, no handler,
* and does not need a socket.
*/
if (i8cmd->handler == NULL)
{
i8_showusage(argv[0], EXIT_SUCCESS);
}
/* Dispatch the command handling */
switch (i8cmd->noptions)
{
case 0:
((cmd0_t)i8cmd->handler)(devname);
break;
case 1:
((cmd1_t)i8cmd->handler)(devname, argv[3]);
break;
case 2:
((cmd2_t)i8cmd->handler)(devname, argv[3], argv[4]);
break;
case 3:
((cmd3_t)i8cmd->handler)(devname, argv[3], argv[4], argv[5]);
break;
default:
fprintf(stderr, "ERROR: Too many arguments: %s\n",
cmdname);
i8_showusage(argv[0], EXIT_FAILURE);
}
return EXIT_SUCCESS;
}
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