/*====================================================================*
*
* Copyright (c) 2013 Qualcomm Atheros, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted (subject to the limitations
* in the disclaimer below) provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of Qualcomm Atheros nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* GRANTED BY THIS LICENSE. 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.
*
*--------------------------------------------------------------------*/
/*====================================================================*
*
* efbu.c - Ethernet Frame Blast Utility;
*
* transmit an IP broadcast frame of maximum length at maximum rate
* for a given period of time in seconds;
*
*
*--------------------------------------------------------------------*/
/*====================================================================*
* system header files;
*--------------------------------------------------------------------*/
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <time.h>
#include <sys/time.h>
/*====================================================================*
* custom header files;
*--------------------------------------------------------------------*/
#include "../tools/getoptv.h"
#include "../tools/putoptv.h"
#include "../tools/error.h"
#include "../tools/memory.h"
#include "../tools/number.h"
#include "../tools/symbol.h"
#include "../tools/flags.h"
#include "../ether/channel.h"
/*====================================================================*
* custom source files;
*--------------------------------------------------------------------*/
#ifndef MAKEFILE
#include "../tools/getoptv.c"
#include "../tools/putoptv.c"
#include "../tools/version.c"
#include "../tools/error.c"
#include "../tools/basespec.c"
#include "../tools/uintspec.c"
#include "../tools/hexencode.c"
#include "../tools/hexdump.c"
#include "../tools/todigit.c"
#endif
#ifndef MAKEFILE
#include "../ether/openchannel.c"
#include "../ether/closechannel.c"
#include "../ether/readpacket.c"
#include "../ether/sendpacket.c"
#include "../ether/channel.c"
#endif
/*====================================================================*
* program contants;
*--------------------------------------------------------------------*/
#define EFBU_VLAN_TAG 0
#define EFBU_INTERFACE "PLC"
#define EFBU_ETHERTYPE ETH_P_802_2
#define EFBU_BINARY 0xAA
#define EFBU_TIMER 1000
#define EFBU_PAUSE 50
#ifndef ETHER_CRC_LEN
#define ETHER_CRC_LEN 4
#endif
#if defined (WIN32)
#define SLEEP(milliseconds) Sleep(milliseconds)
#else
#define SLEEP(milliseconds) usleep(1000*(milliseconds))
#endif
/*====================================================================*
*
* void function (struct channel * channel, void * memory, unsigned extent, unsigned timer, unsigned pause);
*
* transmit an IP broadcast frame of given length at maximum rate
* for a given period of time in seconds;
*
*
*--------------------------------------------------------------------*/
static void function (struct channel * channel, void * memory, ssize_t extent, byte binary, unsigned timer, unsigned pause)
{
#if EFBU_VLAN_TAG
struct ether_header
{
uint8_t ether_dhost [ETH_ALEN];
uint8_t ether_shost [ETH_ALEN];
uint32_t ether_vlan;
uint16_t ether_type;
}
__attribute__ ((__packed__)) * frame = (struct ether_header *)(memory);
#else
struct ether_header * frame = (struct ether_header *)(memory);
#endif
struct timeval ts;
struct timeval tc;
unsigned since;
memset (memory, binary, extent);
if (extent > (ETHER_MAX_LEN - ETHER_CRC_LEN))
{
extent = ETHER_MAX_LEN - ETHER_CRC_LEN;
}
memcpy (frame->ether_dhost, channel->peer, sizeof (frame->ether_dhost));
memcpy (frame->ether_shost, channel->host, sizeof (frame->ether_shost));
#if EFBU_VLAN_TAG
frame->ether_vlan = htonl (0x8100A000);
#endif
frame->ether_type = htons (channel->type);
if (gettimeofday (&ts, NULL) == -1)
{
error (1, errno, CANT_START_TIMER);
}
for (since = 0; since < timer; since = (tc.tv_sec - ts.tv_sec) * 1000 + ((tc.tv_usec - ts.tv_usec) / 1000))
{
sendpacket (channel, memory, extent);
if (gettimeofday (&tc, NULL) == -1)
{
error (1, errno, CANT_RESET_TIMER);
}
SLEEP (pause);
}
return;
}
/*====================================================================*
*
* int main (int argc, char const * argv []);
*
*
*
*--------------------------------------------------------------------*/
int main (int argc, char const * argv [])
{
extern struct channel channel;
static char const * optv [] =
{
"b:d:e:hi:p:t:v",
"",
"Ethernet Frame Blast Utility",
"b n\tbinary byte value is (n) [" LITERAL (EFBU_BINARY) "]",
"d x\treplace destination address with (x)",
"e x\tethertype is (x) [" LITERAL (EFBU_ETHERTYPE) "]",
"h\treplace source address with host address",
#if defined (WINPCAP) || defined (LIBPCAP)
"i n\thost interface is (n) [" LITERAL (CHANNEL_ETHNUMBER) "]",
#else
"i s\thost interface is (s) [" LITERAL (CHANNEL_ETHDEVICE) "]",
#endif
"t n\ttransmit for (n) milliseconds [" LITERAL (EFBU_TIMER) "]",
"p n\tpause (n) milliseconds between frames [" LITERAL (EFBU_PAUSE) "]",
"v\tverbose messages",
(char const *) (0)
};
byte buffer [ETHER_MAX_LEN];
byte binary = EFBU_BINARY;
unsigned timer = EFBU_TIMER;
unsigned pause = EFBU_PAUSE;
signed c;
if (getenv (EFBU_INTERFACE))
{
#if defined (WINPCAP) || defined (LIBPCAP)
channel.ifindex = atoi (getenv (EFBU_INTERFACE));
#else
channel.ifname = strdup (getenv (EFBU_INTERFACE));
#endif
}
optind = 1;
memset (channel.peer, 0xFF, sizeof (channel.peer));
memset (channel.host, 0xFF, sizeof (channel.host));
channel.type = EFBU_ETHERTYPE;
while ((c = getoptv (argc, argv, optv)) != -1)
{
switch (c)
{
case 'b':
binary = (uint8_t)(uintspec (optarg, 0, 255));
break;
case 'd':
_setbits (channel.flags, CHANNEL_UPDATE_TARGET);
if (!hexencode (channel.peer, sizeof (channel.peer), optarg))
{
error (1, errno, "%s", optarg);
}
break;
case 'e':
channel.type = (uint16_t)(basespec (optarg, 16, sizeof (channel.type)));
break;
case 'h':
_setbits (channel.flags, CHANNEL_UPDATE_SOURCE);
break;
case 'i':
#if defined (WINPCAP) || defined (LIBPCAP)
channel.ifindex = atoi (optarg);
#else
channel.ifname = optarg;
#endif
break;
case 'p':
pause = (unsigned)(uintspec (optarg, 0, UINT_MAX));
break;
case 'q':
_setbits (channel.flags, CHANNEL_SILENCE);
break;
case 't':
timer = (unsigned)(uintspec (optarg, 0, UINT_MAX));
break;
case 'v':
_setbits (channel.flags, CHANNEL_VERBOSE);
break;
default:
break;
}
}
argc -= optind;
argv += optind;
if (argc)
{
error (1, ECANCELED, ERROR_TOOMANY);
}
openchannel (&channel);
function (&channel, buffer, sizeof (buffer), binary, timer, pause);
closechannel (&channel);
return (0);
}