/*====================================================================* * * 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. * *--------------------------------------------------------------------*/ /*====================================================================* * * efru.c - Ethernet Frame Read Utility * * print message header and/or full message content on stdout for * each HomePlugAV or Atheros Vendor Specific message received by * the host; * * this program receives raw ethernet frames and so requires root * privileges; if you install it using "chmod 555" and "chown * root:root" then you must login as root to run it; otherwise, you * can install it using "chmod 4555" and "chown root:root" so that * anyone can run it; the program will refuse to run until you get * thing right; * * Contributor(s): * Charles Maier * *--------------------------------------------------------------------*/ /*====================================================================* * system header files; *--------------------------------------------------------------------*/ #include #include #include #include #include #include #include #include #include #ifdef __linux__ #include #include #include #include #endif /*====================================================================* * custom header files; *--------------------------------------------------------------------*/ #include "../tools/getoptv.h" #include "../tools/putoptv.h" #include "../tools/memory.h" #include "../tools/number.h" #include "../tools/types.h" #include "../tools/flags.h" #include "../tools/error.h" #include "../tools/permissions.h" #include "../ether/channel.h" #include "../plc/plc.h" #include "../mme/mme.h" /*====================================================================* * custom source files; *--------------------------------------------------------------------*/ #ifndef MAKEFILE #include "../tools/getoptv.c" #include "../tools/putoptv.c" #include "../tools/version.c" #include "../tools/hexdump.c" #include "../tools/basespec.c" #include "../tools/uintspec.c" #include "../tools/todigit.c" #include "../tools/error.c" #include "../tools/desuid.c" #endif #ifndef MAKEFILE #include "../ether/channel.c" #include "../ether/initchannel.c" #include "../ether/openchannel.c" #include "../ether/closechannel.c" #include "../ether/sendpacket.c" #include "../ether/readpacket.c" #endif /*====================================================================* * program constants; *--------------------------------------------------------------------*/ #define EFRU_VERBOSE (1 << 0) #define EFRU_SILENCE (1 << 1) #define EFRU_INTERFACE "PLC" #define EFRU_ETHERTYPE ETH_P_802_2 /*====================================================================* * * int main (int argc, char * argv[]); * * *--------------------------------------------------------------------*/ int main (int argc, char const * argv []) { extern struct channel channel; struct message message; static char const * optv [] = { "e:i:qt:v", PUTOPTV_S_DIVINE, "Qualcomm Atheros Ethernet Frame Read Utility", "e x\tethertype is (x) [" LITERAL (EFRU_ETHERTYPE) "]", #if defined (WINPCAP) || defined (LIBPCAP) "i n\thost interface is (s) [" LITERAL (CHANNEL_ETHNUMBER) "]", #else "i s\thost interface is (n) [" LITERAL (CHANNEL_ETHDEVICE) "]", #endif "q\tsuppress normal output", "t n\tread timeout is (n) milliseconds [" LITERAL (CHANNEL_FOREVER) "]", "v\tverbose messages on stdout", (char const *) (0) }; flag_t flags = (flag_t)(0); signed length; signed c; initchannel (&channel); desuid (); if (getenv (EFRU_INTERFACE)) { #if defined (WINPCAP) || defined (LIBPCAP) channel.ifindex = atoi (getenv (EFRU_INTERFACE)); #else channel.ifname = strdup (getenv (EFRU_INTERFACE)); #endif } optind = 1; channel.type = EFRU_ETHERTYPE; channel.timeout = CHANNEL_FOREVER; while ((c = getoptv (argc, argv, optv)) != -1) { switch (c) { case 'e': channel.type = (uint16_t)(basespec (optarg, 16, sizeof (channel.type))); break; case 'i': #if defined (WIN32) channel.ifindex = atoi (optarg); #else channel.ifname = optarg; #endif break; case 'q': _setbits (flags, EFRU_SILENCE); break; case 't': channel.timeout = (signed)(uintspec (optarg, 0, UINT_MAX)); break; case 'v': _setbits (flags, EFRU_VERBOSE); break; default: break; } } argc -= optind; argv += optind; if (argc) { error (1, ECANCELED, ERROR_TOOMANY); } openchannel (&channel); while ((length = readpacket (&channel, &message, sizeof (message))) >= 0) { hexdump (&message, 0, length, stdout); } closechannel (&channel); return (0); }