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			coqos_man.c
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/*====================================================================*
 *
 *   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 &quot;AS IS&quot; 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.  
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   coqos_man.c - Manage MCSMA streams
 *
 *
 *   Contributor(s):
 *	Bill Wike &lt;bill.wike@qca.qualcomm.com&gt;
 *	Nathaniel Houghton &lt;nhoughto@qca.qualcomm.com&gt;
 *      Charles Maier &lt;cmaier@qca.qualcomm.com&gt;
 *
 *--------------------------------------------------------------------*/

/*====================================================================*&quot;
 *   system header files;
 *--------------------------------------------------------------------*/

#include &lt;unistd.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;stdint.h&gt;
#include &lt;limits.h&gt;

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

#include &quot;../tools/getoptv.h&quot;
#include &quot;../tools/putoptv.h&quot;
#include &quot;../tools/memory.h&quot;
#include &quot;../tools/number.h&quot;
#include &quot;../tools/symbol.h&quot;
#include &quot;../tools/types.h&quot;
#include &quot;../tools/flags.h&quot;
#include &quot;../tools/files.h&quot;
#include &quot;../tools/error.h&quot;
#include &quot;../plc/plc.h&quot;
#include &quot;../plc/coqos.h&quot;

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

#ifndef MAKEFILE
#include &quot;../tools/getoptv.c&quot;
#include &quot;../tools/putoptv.c&quot;
#include &quot;../tools/version.c&quot;
#include &quot;../tools/uintspec.c&quot;
#include &quot;../tools/hexdump.c&quot;
#include &quot;../tools/hexencode.c&quot;
#include &quot;../tools/hexdecode.c&quot;
#include &quot;../tools/todigit.c&quot;
#include &quot;../tools/typename.c&quot;
#include &quot;../tools/error.c&quot;
#include &quot;../tools/synonym.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../plc/Request.c&quot;
#include &quot;../plc/Confirm.c&quot;
#include &quot;../plc/Failure.c&quot;
#include &quot;../plc/Display.c&quot;
#include &quot;../plc/ReadMME.c&quot;
#include &quot;../plc/SendMME.c&quot;
#include &quot;../plc/Devices.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../ether/openchannel.c&quot;
#include &quot;../ether/closechannel.c&quot;
#include &quot;../ether/readpacket.c&quot;
#include &quot;../ether/sendpacket.c&quot;
#include &quot;../ether/channel.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../mme/MMECode.c&quot;
#include &quot;../mme/EthernetHeader.c&quot;
#include &quot;../mme/QualcommHeader.c&quot;
#include &quot;../mme/UnwantedMessage.c&quot;
#endif

/*====================================================================*
 *
 *   signed con_man (struct plc * plc, uint16_t TOT_BW_USED);
 *
 *
 *
 *   Contributor(s):
 *	Bill Wike &lt;bill.wike@qca.qualcomm.com&gt;
 *
 *--------------------------------------------------------------------*/

signed con_man (struct plc * plc, uint16_t TOT_BW_USED)

{
	struct channel * channel = (struct channel *)(plc-&gt;channel);
	struct message * message = (struct message *)(plc-&gt;message);

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

	struct __packed vs_con_info_req
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t REQ_TYPE;
		uint32_t RSVD;
		uint16_t CSPEC_VER;
		uint16_t CID;
		uint16_t TOT_BW_USED;
	}
	* request = (struct vs_con_info_req *)(message);
	struct __packed vs_con_info_cnf
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t REQ_TYPE;
		uint8_t MSTATUS;
		uint16_t ERR_REC_CODE;
		uint32_t RSVD;
		uint8_t NUM_CONN;
		struct conn_info CONN_INFO [64];
	}
	* confirm = (struct vs_con_info_cnf *)(message);
	struct conn_info * conn_info =(struct conn_info*)(confirm-&gt;CONN_INFO);
	struct vs_con_info_cnf *indicate = (struct vs_con_info_cnf *)(message);
	struct __packed vs_mod_conn_req
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint32_t REQ_ID;
		uint32_t RSVD;
		uint16_t CID;
		uint8_t MOD_CTRL;
	}
	* mc_request = (struct vs_mod_conn_req *)(message);
	struct __packed vs_mod_conn_cnf
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint32_t REQ_ID;
		uint8_t MSTATUS;
		uint16_t ERR_REC_CODE;
		uint32_t RSVD;
	}
	* mc_confirm = (struct vs_mod_conn_cnf *)(message);

#ifndef __GNUC__
#pragma pack (pop)
#endif

	int i;
	int bwused;
	int lowest;
	uint16_t lowcid;
	while (1)
	{
		Request (plc, &quot;COQOS connection information (requesting bandwidth notification)&quot;);
		memset (message, 0, sizeof (* message));
		EthernetHeader (&amp;request-&gt;ethernet, channel-&gt;peer, channel-&gt;host, channel-&gt;type);
		QualcommHeader (&amp;request-&gt;qualcomm, 0, (VS_CONN_INFO | MMTYPE_REQ));
		plc-&gt;packetsize = (ETHER_MIN_LEN - ETHER_CRC_LEN);
		request-&gt;REQ_TYPE = 0x04;
		request-&gt;CID = 0x00;
		request-&gt;CSPEC_VER = 0x01;
		request-&gt;TOT_BW_USED = TOT_BW_USED;
		if (SendMME (plc) &lt;= 0)
		{
			error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
			return (-1);
		}
		while (ReadMME (plc, 0, (VS_CONN_INFO | MMTYPE_CNF)) &lt;= 0);
		if (confirm-&gt;MSTATUS)
		{
			Failure (plc, &quot;Could not set up bandwidth notification.&quot;);
		}
		else
		{
			Confirm (plc, &quot;Set up bandwidth monitoring.&quot;);
			break;
		}
		sleep (1);
	}
	while (1)
	{

/*
 * Wait for indications saying too much bandwidth is
 * in use.
 */

		while (ReadMME (plc, 0, (VS_CONN_INFO | MMTYPE_IND)) &lt;= 0)
		{
			continue;
		}
		if (indicate-&gt;MSTATUS)
		{
			Failure (plc, &quot;Connection Info Indicate error&quot;);
			continue;
		}
		printf (&quot;Number of Connections: %d\n&quot;, indicate-&gt;NUM_CONN);
		conn_info = (struct conn_info *)(confirm-&gt;CONN_INFO);
		bwused = 0;
		lowest = conn_info-&gt;CONN_COQOS_PRIO;
		lowcid = conn_info-&gt;CID;
		for (i = 0; i &lt; indicate-&gt;NUM_CONN; i++)
		{
			bwused += conn_info-&gt;BW_USED;
			if (conn_info-&gt;CONN_COQOS_PRIO &lt; lowest)
			{
				lowest = conn_info-&gt;CONN_COQOS_PRIO;
				lowcid = conn_info-&gt;CID;
			}
			conn_info++;
		}
		printf (&quot;Total bandwidth used: %d\n&quot;, bwused);
		if (bwused &lt;= TOT_BW_USED)
		{
			continue;
		}
		printf (&quot;Bandwidth limit exceeded dropping: %04X\n&quot;, lowcid);
		Request (plc, &quot;COQOS Modify Connection (suspend)&quot;);
		memset (message, 0, sizeof (* message));
		EthernetHeader (&amp;request-&gt;ethernet, channel-&gt;peer, channel-&gt;host, channel-&gt;type);
		QualcommHeader (&amp;request-&gt;qualcomm, 0, (VS_CONN_MOD | MMTYPE_REQ));
		plc-&gt;packetsize = (ETHER_MIN_LEN - ETHER_CRC_LEN);
		mc_request-&gt;MOD_CTRL = 0x00;
		mc_request-&gt;CID = lowcid;
		if (SendMME (plc) &lt;= 0)
		{
			error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
			return (-1);
		}
		while (ReadMME (plc, 0, (VS_CONN_MOD | MMTYPE_CNF)) &lt;= 0);
		if (mc_confirm-&gt;MSTATUS)
		{
			Failure (plc, &quot;Could not suspend stream.&quot;);
			continue;
		}
		printf (&quot;Connection ID: %04X suspended\n&quot;, lowcid);
		sleep (5);

/* flush out old data */

		while (ReadMME (plc, 0, (VS_CONN_INFO | MMTYPE_IND)) &gt; 0);
	}
	return (0);
}

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

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

{
	extern struct channel channel;
	static char const * optv [] =
	{
		&quot;ei:qv&quot;,
		&quot;limit [device] [...]&quot;,
		&quot;CoQos Stream Utility&quot;,
		&quot;e\tredirect stderr to stdout&quot;,

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

		&quot;i n\thost interface is (n) [&quot; LITERAL (CHANNEL_ETHNUMBER) &quot;]&quot;,

#else

		&quot;i s\thost interface is (s) [&quot; LITERAL (CHANNEL_ETHDEVICE) &quot;]&quot;,

#endif

		&quot;q\tquiet mode&quot;,
		&quot;v\tverbose mode&quot;,
		(char const *) (0)
	};

#include &quot;../plc/plc.c&quot;

	uint16_t limit;
	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 '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 'q':
			_setbits (channel.flags, CHANNEL_SILENCE);
			_setbits (plc.flags, PLC_SILENCE);
			break;
		case 'v':
			_setbits (channel.flags, CHANNEL_VERBOSE);
			_setbits (plc.flags, PLC_VERBOSE);
			break;
		default:
			break;
		}
	}
	argc -= optind;
	argv += optind;
	if (!argc)
	{
		error (1, ECANCELED, &quot;No limit given&quot;);
	}
	limit = (uint16_t)(uintspec (* argv++, 10, 90000));
	argc--;
	openchannel (&amp;channel);
	if (!(plc.message = malloc (sizeof (* plc.message))))
	{
		error (1, errno, PLC_NOMEMORY);
	}
	if (!argc)
	{
		con_man (&amp;plc, limit);
	}
	while ((argc) &amp;&amp; (* argv))
	{
		if (!hexencode (channel.peer, sizeof (channel.peer), synonym (* argv, devices, SIZEOF (devices))))
		{
			error (1, errno, PLC_BAD_MAC, * argv);
		}
		con_man (&amp;plc, limit);
		argc--;
		argv++;
	}
	free (plc.message);
	closechannel (&amp;channel);
	exit (0);
}


</pre>
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