mirror of
https://github.com/proski/madwifi
synced 2024-11-22 06:21:47 +03:00
afadc9b41d
You can override: - slottime - ctstimeout - acktimeout acktimeout and ctstimeout will be selected from the first available of: 1) the explicitly specified override value [if present] 2) a value derived from an explicitly specified slottime [if present] 3) the HALs default behavior / standard settings for the PHY mode Setting the distance is shorthand for updating the slottime, and both cts and ack timeout values based upon the usual equations for air propagation, speed of light, etc..etc.. git-svn-id: http://madwifi-project.org/svn/madwifi/trunk@3508 0192ed92-7a03-0410-a25b-9323aeb14dbd
127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*-
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* Copyright (c) 2002-2004 Gunter Burchardt, Local-Web AG
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id$
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*/
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/*
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* Simple Atheros-specific tool to inspect and set atheros specific values
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* athctrl [-i interface] [-d distance]
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* (default interface is wifi0).
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*/
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#include <sys/types.h>
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#include <sys/file.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <err.h>
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#include <net/if.h>
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static int
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setsysctrl(const char *dev, const char *control , u_long value)
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{
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char buffer[256];
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FILE * fd;
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snprintf(buffer, sizeof(buffer), "/proc/sys/dev/%s/%s", dev, control);
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fd = fopen(buffer, "w");
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if (fd != NULL) {
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fprintf(fd, "%li", value);
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fclose(fd);
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} else
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fprintf(stderr, "Could not open %s for writing!\n", buffer);
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return 0;
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}
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static void usage(void)
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{
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fprintf(stderr,
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"Atheros driver control\n"
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"Copyright (c) 2002-2004 Gunter Burchardt, Local-Web AG\n"
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"\n"
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"usage: athctrl [-i interface] [-d distance]\n"
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"\n"
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"options:\n"
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" -h show this usage\n"
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" -i interface (default interface is wifi0)\n"
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" -d specify the maximum distance of a sta or the distance\n"
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" of the master\n");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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char device[IFNAMSIZ + 1];
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int distance = -1;
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int c;
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strncpy(device, "wifi0", sizeof (device));
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for (;;) {
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c = getopt(argc, argv, "d:i:h");
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if (c < 0)
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break;
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switch (c) {
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case 'h':
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usage();
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break;
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case 'd':
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distance = atoi(optarg);
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break;
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case 'i':
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strncpy(device, optarg, sizeof (device));
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break;
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default:
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usage();
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break;
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}
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}
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if (distance >= 0) {
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printf("Setting distance on interface %s to %i meters\n",
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device, distance);
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setsysctrl(device, "distance", distance);
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} else
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usage();
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return 0;
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}
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