/*====================================================================* * * 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 #include #include #include #include /*====================================================================* * 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 "../tools/permissions.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" #include "../tools/desuid.c" #endif #ifndef MAKEFILE #include "../ether/initchannel.c" #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; initchannel (&channel); desuid (); 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); }