/*
 * Mausezahn - A fast versatile traffic generator
 * Copyright (C) 2008-2010 Herbert Haas
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 2 as published by the 
 * Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT 
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with 
 * this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html
 * 
*/



#include "mz.h"
#include "cli.h"
#include "mops.h"



int launch_bpdu (struct cli_def *cli, const char *command, char *argv[], int argc)
{
	int conf=0;
	struct mops_ext_bpdu * pd;
	
	if ( (strncmp(argv[argc-1],"?",2)==0) || (argc>1) ) {
		cli_print(cli, "Launch a(nother) BPDU process:\n");
		cli_print(cli, "<CR>        Per default a TCN-BPDU is sent.\r");
		cli_print(cli, "conf        Use this keyword to emit configuration BPDUs\r");
		cli_print(cli, "            (with this host as root bridge)\n");
		return CLI_OK;
	}

	if (argc==1) {
		if (mz_strcmp(argv[0], "conf", 1)==0) conf=1;
	}
	
	if ((clipkt = mops_alloc_packet(mp_head)) == NULL) { // Problem, memory full?
		cli_print(cli, "Cannot allocate additional memory!\n");
		return CLI_OK;
	}
	
	strncpy (clipkt->packet_name, "sysBPDU", 7);
	// OK, created a new packet
	cli_print(cli, "Allocated new packet %s at slot %i",clipkt->packet_name, clipkt->id);
	mops_set_defaults(clipkt);
	if (mops_ext_add_pdesc (clipkt, MOPS_BPDU))
		cli_print(cli, "Cannot configure BPDU parameters!?\n");
	else  {
		clipkt->use_ETHER = 1;
		clipkt->use_SNAP  = 1;
		clipkt->count = 0;
		clipkt->ndelay.tv_sec  = 2;
		clipkt->ndelay.tv_nsec = 0;
		pd = clipkt->p_desc;
		if (conf) 
			pd->bpdu_type = 0x00;
		else
			pd->bpdu_type = 0x80;
		mops_set_conf(clipkt);
		if (mops_tx_simple (clipkt)) {
			cli_print(cli, "Cannot create sending process.\r");
		}
	}
	
   return CLI_OK;
}



int launch_synflood (struct cli_def *cli, const char *command, char *argv[], int argc)
{
	u_int8_t IP[4];
	int valid_ip=0, valid_port=0;
	
	if ( (strncmp(argv[argc-1],"?",2)==0) || (argc>2) || (argc==0)) {
		cli_print(cli, "Launch a(nother) TCP SYN-Flood process:\n");
		cli_print(cli, "<dst-ip-addr>            At least you must specify the destination IP address\r");
		cli_print(cli, "<dst-ip-addr> <port-nr>  Optionally specify the destination port (default: range from 1-1023)\n");
		return CLI_OK;
	}

	if (mops_pdesc_ip (IP, argv[0])==0) { // check if format is really an IP address
		valid_ip=1;
	} else {
		cli_print(cli, "Invalid IP address\n");
		return CLI_OK;
	}
	
	if (argc==2) {
		if (mz_strisnum(argv[1])==0) {
			cli_print(cli, "Invalid port number\n");
			return CLI_OK;
		}
		valid_port = (int) str2int(argv[1]);
		if (valid_port>65535) {
			cli_print(cli, "Invalid port number\n");
			return CLI_OK;
		}
	}
	
	
	if ((clipkt = mops_alloc_packet(mp_head)) == NULL) { // Problem, memory full?
		cli_print(cli, "Cannot allocate additional memory!\n");
		return CLI_OK;
	}
	
	strncpy (clipkt->packet_name, "sysFlood_TCPSYN", 15);
	// OK, created a new packet
	cli_print(cli, "Allocated new packet %s at slot %i",clipkt->packet_name, clipkt->id);
	mops_set_defaults(clipkt);
	clipkt->use_ETHER = 1;
	clipkt->use_IP  = 1;
	clipkt->use_TCP  = 1;
	clipkt->ip_proto = 6;
	clipkt->count = 0;
	clipkt->ip_dst = str2ip32(argv[0]);
	clipkt->ip_src_israndom=1;
	if (valid_port) {
		clipkt->dp = valid_port;
	} else {
		clipkt->dp_isrange=1;
		clipkt->dp_start=1;
		clipkt->dp_stop=1023;
	}
	clipkt->ndelay.tv_sec  = 0;
	clipkt->ndelay.tv_nsec = 0;
	mops_set_conf(clipkt);
	mops_tcp_add_option (clipkt,64,0,0,0,0);
	if (mops_tx_simple (clipkt)) {
		cli_print(cli, "Cannot create sending process.\r");
	}

	return CLI_OK;
}
on value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;</td><td class='right'>2017-02-03 14:18:39 -0800</td></tr>
<tr><th>committer</th><td>Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;</td><td class='right'>2017-02-04 00:11:08 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/netfilter?h=nds-private-remove&amp;id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>6e978b22efa1db9f6e71b24440b5f1d93e968ee3</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/netfilter?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>c666f7a26b860674848949e39a610222b0723f89</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/netfilter?h=nds-private-remove&amp;id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>net/netfilter</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/netfilter?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>3c223c19aea85d3dda1416c187915f4a30b04b1f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/netfilter?h=nds-private-remove&amp;id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3&amp;id2=3c223c19aea85d3dda1416c187915f4a30b04b1f'>diff</a>)</td></tr></table>
<div class='commit-subject'>cpufreq: intel_pstate: Disable energy efficiency optimization</div><div class='commit-msg'>Some Kabylake desktop processors may not reach max turbo when running in
HWP mode, even if running under sustained 100% utilization.

This occurs when the HWP.EPP (Energy Performance Preference) is set to
"balance_power" (0x80) -- the default on most systems.

It occurs because the platform BIOS may erroneously enable an
energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not
recommended to be enabled on this SKU.

On the failing systems, this BIOS issue was not discovered when the
desktop motherboard was tested with Windows, because the BIOS also
neglects to provide the ACPI/CPPC table, that Windows requires to enable
HWP, and so Windows runs in legacy P-state mode, where this setting has
no effect.

Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and
so it runs in HWP mode, exposing this incorrect BIOS configuration.

There are several ways to address this problem.

First, Linux can also run in legacy P-state mode on this system.
As intel_pstate is how Linux enables HWP, booting with
"intel_pstate=disable"
will run in acpi-cpufreq/ondemand legacy p-state mode.

Or second, the "performance" governor can be used with intel_pstate,
which will modify HWP.EPP to 0.

Or third, starting in 4.10, the
/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
attribute in can be updated from "balance_power" to "performance".

Or fourth, apply this patch, which fixes the erroneous setting of
MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default
configuration to function as designed.

Signed-off-by: Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;
Reviewed-by: Len Brown &lt;len.brown@intel.com&gt;
Cc: 4.6+ &lt;stable@vger.kernel.org&gt; # 4.6+
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>Diffstat</a> (limited to 'net/netfilter')</div><table summary='diffstat' class='diffstat'>