419 lines
12 KiB
C
419 lines
12 KiB
C
/*
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* Copyright (C) 1996
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* Michael Smith. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Michael Smith AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Michael Smith OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id: wlconfig.c,v 1.6 1997/10/27 12:23:08 charnier Exp $";
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#endif /* not lint */
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/*
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* wlconfig.c
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*
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* utility to read out and change various WAVELAN parameters.
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* Currently supports NWID and IRQ values.
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*
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* The NWID is used by 2 or more wavelan controllers to determine
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* if packets should be received or not. It is a filter that
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* is roughly analogous to the "channel" setting with a garage
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* door controller. Two companies side by side with wavelan devices
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* that could actually hear each other can use different NWIDs
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* and ignore packets. In truth however, the air space is shared,
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* and the NWID is a virtual filter.
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*
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* In the current set of wavelan drivers, ioctls changed only
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* the runtime radio modem registers which act in a manner analogous
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* to an ethernet transceiver. The ioctls do not change the
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* stored nvram PSA (or parameter storage area). At boot, the PSA
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* values are stored in the radio modem. Thus when the
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* system reboots it will restore the wavelan NWID to the value
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* stored in the PSA. The NCR/ATT dos utilities must be used to
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* change the initial NWID values in the PSA. The wlconfig utility
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* may be used to set a different NWID at runtime; this is only
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* permitted while the interface is up and running.
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*
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* By contrast, the IRQ value can only be changed while the
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* Wavelan card is down and unconfigured, and it will remain
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* disabled after an IRQ change until reboot.
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*
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*/
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <machine/if_wl_wavelan.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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extern struct ether_addr *ether_aton(char *a);
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <limits.h>
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/* translate IRQ bit to number */
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/* array for maping irq numbers to values for the irq parameter register */
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static int irqvals[16] = {
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0, 0, 0, 0x01, 0x02, 0x04, 0, 0x08, 0, 0, 0x10, 0x20, 0x40, 0, 0, 0x80
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};
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/* cache */
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static int w_sigitems; /* count of valid items */
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static struct w_sigcache wsc[MAXCACHEITEMS];
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int
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wlirq(int irqval)
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{
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int irq;
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for(irq = 0; irq < 16; irq++)
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if(irqvals[irq] == irqval)
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return(irq);
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return 0;
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}
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char *compat_type[] = {
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"PC-AT 915MHz",
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"PC-MC 915MHz",
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"PC-AT 2.4GHz",
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"PC-MC 2.4GHz",
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"PCCARD or 1/2 size AT, 915MHz or 2.4GHz"
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};
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char *subband[] = {
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"915MHz/see WaveModem",
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"2425MHz",
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"2460MHz",
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"2484MHz",
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"2430.5MHz"
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};
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/*
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** print_psa
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**
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** Given a pointer to a PSA structure, print it out
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*/
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void
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print_psa(u_char *psa, int currnwid)
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{
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int nwid;
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/*
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** Work out what sort of board we have
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*/
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if (psa[0] == 0x14) {
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printf("Board type : Microchannel\n");
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} else {
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if (psa[1] == 0) {
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printf("Board type : PCCARD\n");
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} else {
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printf("Board type : ISA");
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if ((psa[4] == 0) &&
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(psa[5] == 0) &&
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(psa[6] == 0))
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printf(" (DEC OEM)");
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printf("\n");
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printf("Base address options : 0x300, 0x%02x0, 0x%02x0, 0x%02x0\n",
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(int)psa[1], (int)psa[2], (int)psa[3]);
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printf("Waitstates : %d\n",psa[7] & 0xf);
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printf("Bus mode : %s\n",(psa[7] & 0x10) ? "EISA" : "ISA");
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printf("IRQ : %d\n",wlirq(psa[8]));
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}
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}
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printf("Default MAC address : %02x:%02x:%02x:%02x:%02x:%02x\n",
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psa[0x10],psa[0x11],psa[0x12],psa[0x13],psa[0x14],psa[0x15]);
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printf("Soft MAC address : %02x:%02x:%02x:%02x:%02x:%02x\n",
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psa[0x16],psa[0x17],psa[0x18],psa[0x19],psa[0x1a],psa[0x1b]);
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printf("Current MAC address : %s\n",(psa[0x1c] & 0x1) ? "Soft" : "Default");
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printf("Adapter compatability : ");
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if (psa[0x1d] < 5) {
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printf("%s\n",compat_type[psa[0x1d]]);
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} else {
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printf("unknown\n");
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}
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printf("Threshold preset : %d\n",psa[0x1e]);
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printf("Call code required : %s\n",(psa[0x1f] & 0x1) ? "YES" : "NO");
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if (psa[0x1f] & 0x1)
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printf("Call code : 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
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psa[0x30],psa[0x31],psa[0x32],psa[0x33],psa[0x34],psa[0x35],psa[0x36],psa[0x37]);
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printf("Subband : %s\n",subband[psa[0x20] & 0xf]);
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printf("Quality threshold : %d\n",psa[0x21]);
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printf("Hardware version : %d (%s)\n",psa[0x22],psa[0x22] ? "Rel3" : "Rel1/Rel2");
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printf("Network ID enable : %s\n",(psa[0x25] & 0x1) ? "YES" : "NO");
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if (psa[0x25] & 0x1) {
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nwid = (psa[0x23] << 8) + psa[0x24];
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printf("NWID : 0x%04x\n",nwid);
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if (nwid != currnwid) {
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printf("Current NWID : 0x%04x\n",currnwid);
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}
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}
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printf("Datalink security : %s\n",(psa[0x26] & 0x1) ? "YES" : "NO");
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if (psa[0x26] & 0x1) {
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printf("Encryption key : ");
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if (psa[0x27] == 0) {
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printf("DENIED\n");
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} else {
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printf("0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
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psa[0x27],psa[0x28],psa[0x29],psa[0x2a],psa[0x2b],psa[0x2c],psa[0x2d],psa[0x2e]);
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}
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}
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printf("Databus width : %d (%s)\n",
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(psa[0x2f] & 0x1) ? 16 : 8, (psa[0x2f] & 0x80) ? "fixed" : "variable");
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printf("Configuration state : %sconfigured\n",(psa[0x38] & 0x1) ? "" : "un");
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printf("CRC-16 : 0x%02x%02x\n",psa[0x3e],psa[0x3d]);
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printf("CRC status : ");
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switch(psa[0x3f]) {
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case 0xaa:
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printf("OK\n");
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break;
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case 0x55:
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printf("BAD\n");
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break;
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default:
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printf("Error\n");
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break;
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}
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}
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static void
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usage()
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{
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fprintf(stderr,"usage: wlconfig ifname [param value ...]\n");
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exit(1);
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}
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void
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get_cache(int sd, struct ifreq *ifr)
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{
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/* get the cache count */
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if (ioctl(sd, SIOCGWLCITEM, (caddr_t)ifr))
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err(1, "SIOCGWLCITEM - get cache count");
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w_sigitems = (int) ifr->ifr_data;
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ifr->ifr_data = (caddr_t) &wsc;
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/* get the cache */
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if (ioctl(sd, SIOCGWLCACHE, (caddr_t)ifr))
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err(1, "SIOCGWLCACHE - get cache count");
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}
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static int
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scale_value(int value, int max)
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{
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double dmax = (double) max;
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if (value > max)
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return(100);
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return((value/dmax) * 100);
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}
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static void
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dump_cache(int rawFlag)
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{
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int i;
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int signal, silence, quality;
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if (rawFlag)
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printf("signal range 0..63: silence 0..63: quality 0..15\n");
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else
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printf("signal range 0..100: silence 0..100: quality 0..100\n");
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/* after you read it, loop through structure,i.e. wsc
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* print each item:
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*/
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for(i = 0; i < w_sigitems; i++) {
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printf("[%d:%d]>\n", i+1, w_sigitems);
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printf("\tip: %d.%d.%d.%d,",((wsc[i].ipsrc >> 0) & 0xff),
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((wsc[i].ipsrc >> 8) & 0xff),
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((wsc[i].ipsrc >> 16) & 0xff),
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((wsc[i].ipsrc >> 24) & 0xff));
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printf(" mac: %02x:%02x:%02x:%02x:%02x:%02x\n",
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wsc[i].macsrc[0]&0xff,
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wsc[i].macsrc[1]&0xff,
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wsc[i].macsrc[2]&0xff,
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wsc[i].macsrc[3]&0xff,
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wsc[i].macsrc[4]&0xff,
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wsc[i].macsrc[5]&0xff);
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if (rawFlag) {
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signal = wsc[i].signal;
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silence = wsc[i].silence;
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quality = wsc[i].quality;
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}
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else {
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signal = scale_value(wsc[i].signal, 63);
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silence = scale_value(wsc[i].silence, 63);
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quality = scale_value(wsc[i].quality, 15);
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}
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printf("\tsignal: %d, silence: %d, quality: %d, ",
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signal,
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silence,
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quality);
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printf("snr: %d\n", signal - silence);
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}
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}
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#define raw_cache() dump_cache(1)
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#define scale_cache() dump_cache(0)
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int
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main(int argc, char *argv[])
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{
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int sd;
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struct ifreq ifr;
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u_char psabuf[0x40];
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int val, argind, i;
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char *cp, *param, *value;
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struct ether_addr *ea;
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int work = 0;
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int currnwid;
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if ((argc < 2) || (argc % 2))
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usage();
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/* get a socket */
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sd = socket(AF_INET, SOCK_DGRAM, 0);
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if (sd < 0)
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err(1,"socket");
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strncpy(ifr.ifr_name, argv[1], sizeof(ifr.ifr_name));
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ifr.ifr_addr.sa_family = AF_INET;
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/* get the PSA */
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ifr.ifr_data = (caddr_t)psabuf;
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if (ioctl(sd, SIOCGWLPSA, (caddr_t)&ifr))
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err(1,"get PSA");
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/* get the current NWID */
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if (ioctl(sd, SIOCGWLCNWID, (caddr_t)&ifr))
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err(1,"get NWID");
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currnwid = (int)ifr.ifr_data;
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/* just dump and exit? */
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if (argc == 2) {
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print_psa(psabuf, currnwid);
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exit(0);
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}
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/* loop reading arg pairs */
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for (argind = 2; argind < argc; argind += 2) {
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param = argv[argind];
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value = argv[argind+1];
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/* What to do? */
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if (!strcasecmp(param,"currnwid")) { /* set current NWID */
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val = strtol(value,&cp,0);
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if ((val < 0) || (val > 0xffff) || (cp == value))
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errx(1,"bad NWID '%s'",value);
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ifr.ifr_data = (caddr_t)val;
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if (ioctl(sd, SIOCSWLCNWID, (caddr_t)&ifr))
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err(1,"set NWID (interface not up?)");
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continue ;
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}
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if (!strcasecmp(param,"irq")) {
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val = strtol(value,&cp,0);
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val = irqvals[val];
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if ((val == 0) || (cp == value))
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errx(1,"bad IRQ '%s'",value);
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psabuf[WLPSA_IRQNO] = (u_char)val;
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work = 1;
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continue;
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}
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if (!strcasecmp(param,"mac")) {
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if ((ea = ether_aton(value)) == NULL)
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errx(1,"bad ethernet address '%s'",value);
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for (i = 0; i < 6; i++)
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psabuf[WLPSA_LOCALMAC + i] = ea->octet[i];
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work = 1;
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continue;
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}
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if (!strcasecmp(param,"macsel")) {
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if (!strcasecmp(value,"local")) {
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psabuf[WLPSA_MACSEL] |= 0x1;
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work = 1;
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continue;
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}
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if (!strcasecmp(value,"universal")) {
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psabuf[WLPSA_MACSEL] &= ~0x1;
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work = 1;
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continue;
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}
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errx(1,"bad macsel value '%s'",value);
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}
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if (!strcasecmp(param,"nwid")) {
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val = strtol(value,&cp,0);
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if ((val < 0) || (val > 0xffff) || (cp == value))
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errx(1,"bad NWID '%s'",value);
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psabuf[WLPSA_NWID] = (val >> 8) & 0xff;
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psabuf[WLPSA_NWID+1] = val & 0xff;
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work = 1;
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continue;
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}
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if (!strcasecmp(param,"cache")) {
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/* raw cache dump
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*/
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if (!strcasecmp(value,"raw")) {
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get_cache(sd, &ifr);
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raw_cache();
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continue;
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}
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/* scaled cache dump
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*/
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else if (!strcasecmp(value,"scale")) {
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get_cache(sd, &ifr);
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scale_cache();
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continue;
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}
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/* zero out cache
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*/
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else if (!strcasecmp(value,"zero")) {
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if (ioctl(sd, SIOCDWLCACHE, (caddr_t)&ifr))
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err(1,"zero cache");
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continue;
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}
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errx(1,"unknown value '%s'", value);
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}
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errx(1,"unknown parameter '%s'",param);
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}
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if (work) {
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ifr.ifr_data = (caddr_t)psabuf;
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if (ioctl(sd, SIOCSWLPSA, (caddr_t)&ifr))
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err(1,"set PSA");
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}
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return(0);
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}
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