    /*====================================================================*
     *
     *   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.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   ampID.c - Atheros Powerline Device Identity
     *
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*"
     *   system header files;
     *--------------------------------------------------------------------*/

    #include <unistd.h>
    #include <stdlib.h>
    #include <limits.h>
    #include <string.h>
    #include <ctype.h>

    /*====================================================================*
     *   custom header files;
     *--------------------------------------------------------------------*/

    #include "../tools/getoptv.h"
    #include "../tools/putoptv.h"
    #include "../tools/memory.h"
    #include "../tools/number.h"
    #include "../tools/symbol.h"
    #include "../tools/types.h"
    #include "../tools/flags.h"
    #include "../tools/files.h"
    #include "../tools/error.h"
    #include "../plc/plc.h"
    #include "../ram/nvram.h"
    #include "../ram/sdram.h"
    #include "../nvm/nvm.h"
    #include "../pib/pib.h"
    #include "../mme/mme.h"

    /*====================================================================*
     *   custom source files;
     *--------------------------------------------------------------------*/

    #ifndef MAKEFILE
    #include "../tools/getoptv.c"
    #include "../tools/putoptv.c"
    #include "../tools/version.c"
    #include "../tools/uintspec.c"
    #include "../tools/hexencode.c"
    #include "../tools/hexdecode.c"
    #include "../tools/todigit.c"
    #include "../tools/hexdump.c"
    #include "../tools/hexout.c"
    #include "../tools/error.c"
    #include "../tools/synonym.c"
    #endif

    #ifndef MAKEFILE
    #include "../mme/EthernetHeader.c"
    #include "../mme/QualcommHeader.c"
    #include "../mme/UnwantedMessage.c"
    #include "../plc/Display.c"
    #include "../plc/Devices.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

    #ifndef MAKEFILE
    #include "../mme/MMECode.c"
    #endif

    /*====================================================================*
     *   program constants;
     *--------------------------------------------------------------------*/

    #define INT6KID_DAK 0
    #define INT6KID_NMK 1
    #define INT6KID_MAC 2
    #define INT6KID_MFG 3
    #define INT6KID_USR 4
    #define INT6KID_NET 5

    /*====================================================================*
     *
     *   void ReadKey1 (struct channel * channel, unsigned c, int key);
     *
     *   read the first block of the PIB from a device then echo one of
     *   several parameters on stdout as a string; program output can be
     *   used in scripts to define variables or compare strings;
     *
     *   this function is an abridged version of ReadParameters(); it reads only
     *   the first 1024 bytes of the PIB then stops; most parameters of
     *   general interest occur in that block;
     *
     *
     *--------------------------------------------------------------------*/

    static void ReadKey1 (struct channel * channel, unsigned c, int key)

    {
    	struct message message;
    	static signed count = 0;
    	signed packetsize;

    #ifndef __GNUC__
    #pragma pack (push,1)
    #endif

    	struct __packed vs_rd_mod_request
    	{
    		struct ethernet_hdr ethernet;
    		struct qualcomm_hdr qualcomm;
    		uint8_t MODULEID;
    		uint8_t RESERVED;
    		uint16_t MLENGTH;
    		uint32_t MOFFSET;
    		uint8_t DAK [16];
    	}
    	* request = (struct vs_rd_mod_request *)(&message);
    	struct __packed vs_rd_mod_confirm
    	{
    		struct ethernet_hdr ethernet;
    		struct qualcomm_hdr qualcomm;
    		uint8_t MSTATUS;
    		uint8_t RESERVED1 [3];
    		uint8_t MODULEID;
    		uint8_t RESERVED2;
    		uint16_t MLENGTH;
    		uint32_t MOFFSET;
    		uint32_t MCHKSUM;
    		struct simple_pib pib;
    	}
    	* confirm = (struct vs_rd_mod_confirm *)(&message);

    #ifndef __GNUC__
    #pragma pack (pop)
    #endif

    	memset (&message, 0, sizeof (message));
    	EthernetHeader (&request->ethernet, channel->peer, channel->host, channel->type);
    	QualcommHeader (&request->qualcomm, 0, (VS_RD_MOD | MMTYPE_REQ));
    	request->MODULEID = VS_MODULE_PIB;
    	request->MLENGTH = HTOLE16 (PLC_RECORD_SIZE);
    	request->MOFFSET = HTOLE32 (0);
    	if (sendpacket (channel, &message, (ETHER_MIN_LEN - ETHER_CRC_LEN)) < 0)
    	{
    		error (1, errno, CHANNEL_CANTSEND);
    	}
    	while ((packetsize = readpacket (channel, &message, sizeof (message))) > 0)
    	{
    		if (UnwantedMessage (&message, packetsize, 0, (VS_RD_MOD | MMTYPE_CNF)))
    		{
    			continue;
    		}
    		if (confirm->MSTATUS)
    		{
    			error (0, 0, "%s (%0X): ", MMECode (confirm->qualcomm.MMTYPE, confirm->MSTATUS), confirm->MSTATUS);
    			continue;
    		}
    		if (count++ > 0)
    		{
    			putc (c, stdout);
    		}
    		if (key == INT6KID_MAC)
    		{
    			hexout (confirm->pib.MAC, sizeof (confirm->pib.MAC), HEX_EXTENDER, 0, stdout);
    			continue;
    		}
    		if (key == INT6KID_DAK)
    		{
    			hexout (confirm->pib.DAK, sizeof (confirm->pib.DAK), HEX_EXTENDER, 0, stdout);
    			continue;
    		}
    		if (key == INT6KID_NMK)
    		{
    			hexout (confirm->pib.NMK, sizeof (confirm->pib.NMK), HEX_EXTENDER, 0, stdout);
    			continue;
    		}
    		if (key == INT6KID_MFG)
    		{
    			confirm->pib.MFG [PIB_HFID_LEN - 1] = (char)(0);
    			printf ("%s", confirm->pib.MFG);
    			continue;
    		}
    		if (key == INT6KID_USR)
    		{
    			confirm->pib.USR [PIB_HFID_LEN - 1] = (char)(0);
    			printf ("%s", confirm->pib.USR);
    			continue;
    		}
    		if (key == INT6KID_NET)
    		{
    			confirm->pib.NET [PIB_HFID_LEN - 1] = (char)(0);
    			printf ("%s", confirm->pib.NET);
    			continue;
    		}
    	}
    	if (packetsize < 0)
    	{
    		error (1, errno, CHANNEL_CANTREAD);
    	}
    	return;
    }

    /*====================================================================*
     *
     *   int main (int argc, char const * argv []);
     *
     *
     *
     *--------------------------------------------------------------------*/

    int main (int argc, char const * argv [])

    {
    	extern struct channel channel;
    	static char const * optv [] =
    	{
    		"Ac:Dei:MnNqSUv",
    		"device",
    		"Qualcomm Atheros Powerline Device Identity",
    		"A\tEthernet address (MAC)",
    		"c c\tcharacter delimiter is (c)",
    		"D\tDevice Access Key (DAK)",
    		"e\tredirect stderr to stdout",

    #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

    		"M\tNetwork Membership Key (NMK)",
    		"n\tappend newline on output",
    		"N\tnetwork HFID",
    		"q\tquiet mode",
    		"S\tmanufacturer HFID",
    		"U\tuser HFID",
    		"v\tverbose mode",
    		(char const *) (0)
    	};
    	signed newline = '\n';
    	signed key = INT6KID_DAK;
    	flag_t flags = (flag_t)(0);
    	signed c;
    	if (getenv (PLCDEVICE))
    	{

    #if defined (WINPCAP) || defined (LIBPCAP)

    		channel.ifindex = atoi (getenv (PLCDEVICE));

    #else

    		channel.ifname = strdup (getenv (PLCDEVICE));

    #endif

    	}
    	optind = 1;
    	while ((c = getoptv (argc, argv, optv)) != -1)
    	{
    		switch (c)
    		{
    		case 'A':
    			key = INT6KID_MAC;
    			break;
    		case 'c':
    			newline = * optarg;
    			break;
    		case 'D':
    			key = INT6KID_DAK;
    			break;
    		case 'e':
    			dup2 (STDOUT_FILENO, STDERR_FILENO);
    			break;
    		case 'i':

    #if defined (WINPCAP) || defined (LIBPCAP)

    			channel.ifindex = atoi (optarg);

    #else

    			channel.ifname = optarg;

    #endif

    			break;
    		case 'M':
    			key = INT6KID_NMK;
    			break;
    		case 'n':
    			_setbits (flags, PLC_NEWLINE);
    			break;
    		case 'N':
    			key = INT6KID_NET;
    			break;
    		case 'q':
    			_setbits (channel.flags, CHANNEL_SILENCE);
    			_setbits (flags, PLC_SILENCE);
    			break;
    		case 'S':
    			key = INT6KID_MFG;
    			break;
    		case 'U':
    			key = INT6KID_USR;
    			break;
    		case 'v':
    			_setbits (channel.flags, CHANNEL_VERBOSE);
    			_setbits (flags, PLC_VERBOSE);
    			break;
    		default:
    			break;
    		}
    	}
    	argc -= optind;
    	argv += optind;
    	openchannel (&channel);
    	if (!argc)
    	{
    		ReadKey1 (&channel, newline, key);
    		if (_anyset (flags, PLC_NEWLINE))
    		{
    			putc (newline, stdout);
    		}
    	}
    	while ((argc) && (* argv))
    	{
    		if (!hexencode (channel.peer, sizeof (channel.peer), synonym (* argv, devices, SIZEOF (devices))))
    		{
    			error (1, errno, PLC_BAD_MAC, * argv);
    		}
    		ReadKey1 (&channel, newline, key);
    		if (_anyset (flags, PLC_NEWLINE))
    		{
    			putc (newline, stdout);
    		}
    		argv++;
    		argc--;
    	}
    	closechannel (&channel);
    	return (0);
    }

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