wireless/ieee802154: i8sak adds sniffing functionality back in
This commit is contained in:
Anthony Merlino
parent
a6ef54cf0c
commit
84dc6ddcd7
@ -20,5 +20,13 @@ config IEEE802154_I8SAK_PROGNAME
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This is the name of the program that will be use when the NSH ELF
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program is installed.
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config IEEE802154_I8SAK_PRIORITY
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int "i8sak task priority"
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default 100
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config IEEE802154_I8SAK_STACKSIZE
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int "i8sak stack size"
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default 2048
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endif
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@ -73,7 +73,8 @@
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* Private Function Prototypes
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****************************************************************************/
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static int tx(int fd, FAR const char *str, int verbose);
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static int tx(FAR const char *devname, FAR const char *str, int verbose);
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static int start_sniffer_daemon(FAR const char *devname);
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/****************************************************************************
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* Private Data
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@ -81,6 +82,9 @@ static int tx(int fd, FAR const char *str, int verbose);
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uint8_t g_handle = 0;
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uint8_t g_txframe[IEEE802154_MAX_MAC_PAYLOAD_SIZE];
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static int sniffer_daemon(int argc, FAR char *argv[]);
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bool g_sniffer_daemon_started = false;
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/****************************************************************************
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* Public Data
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@ -90,6 +94,112 @@ uint8_t g_txframe[IEEE802154_MAX_MAC_PAYLOAD_SIZE];
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name : start_sniff
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*
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* Description :
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* Starts a thread to run the sniffer in the background
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****************************************************************************/
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static int start_sniffer_daemon(FAR const char *devname)
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{
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int ret;
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FAR const char *sniffer_argv[2];
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printf("i8sak: Starting sniffer_daemon\n");
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if (g_sniffer_daemon_started)
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{
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printf("i8sak: sniffer_daemon already running\n");
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return EXIT_SUCCESS;
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}
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sniffer_argv[0] = devname;
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sniffer_argv[1] = NULL;
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ret = task_create("sniffer_daemon", CONFIG_IEEE802154_I8SAK_PRIORITY,
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CONFIG_IEEE802154_I8SAK_STACKSIZE, sniffer_daemon,
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(FAR char * const *)sniffer_argv);
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if (ret < 0)
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{
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int errcode = errno;
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printf("i8sak: ERROR: Failed to start sniffer_daemon: %d\n",
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errcode);
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return EXIT_FAILURE;
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}
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g_sniffer_daemon_started = true;
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printf("i8sak: sniffer_daemon started\n");
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return OK;
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}
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/****************************************************************************
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* Name : sniffer_daemon
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*
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* Description :
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* Sniff for frames (Promiscuous mode)
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****************************************************************************/
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static int sniffer_daemon(int argc, FAR char *argv[])
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{
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int ret, fd, i;
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struct mac802154dev_rxframe_s rx;
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fd = open(argv[1], O_RDWR);
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if (fd < 0)
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{
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printf("cannot open %s, errno=%d\n", argv[1], errno);
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ret = errno;
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return ret;
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}
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printf("Listening...\n");
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/* Enable promiscuous mode */
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ret = ieee802154_setpromisc(fd, true);
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/* Make sure receiver is always on while idle */
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ret = ieee802154_setrxonidle(fd, true);
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while(1)
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{
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ret = read(fd, &rx, sizeof(struct mac802154dev_rxframe_s));
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if (ret < 0)
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{
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printf("sniffer_daemon: read failed: %d\n", errno);
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goto errout;
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}
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printf("Frame Received:\n");
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for (i = 0; i < rx.length; i++)
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{
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printf("%02X", rx.payload[i]);
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}
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printf("\n");
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fflush(stdout);
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}
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errout:
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/* Turn receiver off when idle */
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ret = ieee802154_setrxonidle(fd, false);
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/* Disable promiscuous mode */
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ret = ieee802154_setpromisc(fd, false);
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printf("sniffer_daemon: closing");
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close(fd);
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g_sniffer_daemon_started = false;
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return OK;
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}
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/****************************************************************************
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* Name : tx
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*
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@ -97,12 +207,22 @@ uint8_t g_txframe[IEEE802154_MAX_MAC_PAYLOAD_SIZE];
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* Transmit a data frame.
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****************************************************************************/
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static int tx(int fd, FAR const char *str, int verbose)
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static int tx(FAR const char *devname, FAR const char *str, int verbose)
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{
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struct mac802154dev_txframe_s tx;
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int ret, str_len;
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int ret, str_len, fd;
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int i = 0;
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/* Open device */
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fd = open(devname, O_RDWR);
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if (fd < 0)
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{
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printf("cannot open %s, errno=%d\n", devname, errno);
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ret = errno;
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return ret;
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}
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/* Set an application defined handle */
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tx.meta.msdu_handle = g_handle++;
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@ -116,6 +236,8 @@ static int tx(int fd, FAR const char *str, int verbose)
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tx.meta.ranging = IEEE802154_NON_RANGING;
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tx.meta.src_addr_mode = IEEE802154_ADDRMODE_EXTENDED;
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tx.meta.dest_addr.mode = IEEE802154_ADDRMODE_SHORT;
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tx.meta.dest_addr.saddr = 0xFADE;
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str_len = strlen(str);
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@ -128,7 +250,7 @@ static int tx(int fd, FAR const char *str, int verbose)
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if ((str_len & 1) || (tx.length > IEEE802154_MAX_MAC_PAYLOAD_SIZE))
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{
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goto data_error;
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goto error;
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}
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/* Decode hex packet */
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@ -144,7 +266,7 @@ static int tx(int fd, FAR const char *str, int verbose)
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}
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else
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{
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goto data_error;
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goto error;
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}
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}
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@ -173,11 +295,13 @@ static int tx(int fd, FAR const char *str, int verbose)
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printf(" write: errno=%d\n",errno);
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}
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close(fd);
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return ret;
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data_error:
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error:
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printf("data error\n");
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return ERROR;;
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close(fd);
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return ERROR;
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}
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/****************************************************************************
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@ -190,7 +314,8 @@ data_error:
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int usage(void)
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{
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printf("i8 <device> <op> [<args>]\n"
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printf("i8 <devname> <op> [<args>]\n"
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" sniffer Listen for packets\n"
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" tx <hexpacket> Transmit a data frame\n"
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);
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@ -207,48 +332,33 @@ int main(int argc, FAR char *argv[])
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int i8_main(int argc, char *argv[])
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#endif
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{
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unsigned long arg = 0;
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int fd;
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FAR const char *devname;
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FAR const char *cmdname;
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int ret = OK;
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if (argc < 3)
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{
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printf("ERROR: Missing argument\n");
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return usage();
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}
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if (argc >= 4)
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{
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arg = atol(argv[3]);
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}
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/* Open device */
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fd = open(argv[1], O_RDWR);
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if (fd < 0)
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{
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printf("cannot open %s, errno=%d\n", argv[1], errno);
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ret = errno;
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goto exit;
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}
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devname = argv[1];
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cmdname = argv[2];
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/* Get mode */
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if (!strcmp(argv[2], "tx"))
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if (!strcmp(cmdname, "tx"))
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{
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ret = tx(fd, argv[3], TRUE);
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if (ret < 0)
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{
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goto error;
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ret = tx(devname, argv[3], TRUE);
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}
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else if(!strcmp(argv[2], "sniffer"))
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{
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ret = start_sniffer_daemon(devname);
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}
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else
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{
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usage:
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ret = usage();
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}
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error:
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close(fd);
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exit:
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return ret;
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}
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