mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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246d20838f
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@637 3c298f89-4303-0410-b956-a3cf2f4a3e73
560 lines
14 KiB
C
560 lines
14 KiB
C
/*
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* wlcompat.c
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*
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* Copyright (C) 2005 Mike Baker,
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* Felix Fietkau <nbd@vd-s.ath.cx>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Id$
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/if_arp.h>
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#include <asm/uaccess.h>
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#include <linux/wireless.h>
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#include <net/iw_handler.h>
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#include <wlioctl.h>
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static struct net_device *dev;
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char buf[WLC_IOCTL_MAXLEN];
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/* The frequency of each channel in MHz */
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const long channel_frequency[] = {
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2412, 2417, 2422, 2427, 2432, 2437, 2442,
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2447, 2452, 2457, 2462, 2467, 2472, 2484
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};
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#define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
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static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
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{
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mm_segment_t old_fs = get_fs();
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struct ifreq ifr;
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int ret;
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wl_ioctl_t ioc;
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ioc.cmd = cmd;
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ioc.buf = buf;
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ioc.len = len;
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strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
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ifr.ifr_data = (caddr_t) &ioc;
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set_fs(KERNEL_DS);
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ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
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set_fs (old_fs);
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return ret;
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}
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static int wlcompat_ioctl_getiwrange(struct net_device *dev,
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char *extra)
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{
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int i, k;
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struct iw_range *range;
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range = (struct iw_range *) extra;
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range->we_version_compiled = WIRELESS_EXT;
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range->we_version_source = WIRELESS_EXT;
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range->min_nwid = range->max_nwid = 0;
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range->num_channels = NUM_CHANNELS;
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k = 0;
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for (i = 0; i < NUM_CHANNELS; i++) {
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range->freq[k].i = i + 1;
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range->freq[k].m = channel_frequency[i] * 100000;
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range->freq[k].e = 1;
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k++;
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if (k >= IW_MAX_FREQUENCIES)
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break;
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}
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range->num_frequency = k;
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range->sensitivity = 3;
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/* nbd: don't know what this means, but other drivers set it this way */
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range->pmp_flags = IW_POWER_PERIOD;
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range->pmt_flags = IW_POWER_TIMEOUT;
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range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
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range->min_pmp = 0;
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range->max_pmp = 65535000;
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range->min_pmt = 0;
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range->max_pmt = 65535 * 1000;
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range->min_rts = 0;
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if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
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range->max_rts = 2347;
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range->min_frag = 256;
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if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
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range->max_frag = 2346;
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range->txpower_capa = IW_TXPOW_MWATT;
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return 0;
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}
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static int wlcompat_set_scan(struct net_device *dev,
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struct iw_request_info *info,
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union iwreq_data *wrqu,
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char *extra)
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{
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int ap = 0, oldap = 0;
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wl_scan_params_t params;
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memset(¶ms, 0, sizeof(params));
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/* use defaults (same parameters as wl scan) */
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memset(¶ms.bssid, 0xff, sizeof(params.bssid));
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params.bss_type = DOT11_BSSTYPE_ANY;
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params.scan_type = -1;
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params.nprobes = -1;
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params.active_time = -1;
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params.passive_time = -1;
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params.home_time = -1;
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/* can only scan in STA mode */
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wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
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if (oldap > 0)
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wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
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if (wl_ioctl(dev, WLC_SCAN, ¶ms, 64) < 0)
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return -EINVAL;
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if (oldap > 0)
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wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
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return 0;
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}
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static int wlcompat_get_scan(struct net_device *dev,
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struct iw_request_info *info,
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union iwreq_data *wrqu,
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char *extra)
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{
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wl_scan_results_t *results = (wl_scan_results_t *) buf;
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wl_bss_info_t *bss_info;
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char *info_ptr;
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char *current_ev = extra;
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char *current_val;
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char *end_buf = extra + IW_SCAN_MAX_DATA;
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struct iw_event iwe;
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int i, j;
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if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
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return -EAGAIN;
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bss_info = &(results->bss_info[0]);
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info_ptr = (char *) bss_info;
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for (i = 0; i < results->count; i++) {
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/* send the cell address (must be sent first) */
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iwe.cmd = SIOCGIWAP;
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iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
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memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
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current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
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/* send the ESSID */
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iwe.cmd = SIOCGIWESSID;
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iwe.u.data.length = bss_info->SSID_len;
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if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
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iwe.u.data.length = IW_ESSID_MAX_SIZE;
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iwe.u.data.flags = 1;
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current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
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/* send frequency/channel info */
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iwe.cmd = SIOCGIWFREQ;
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iwe.u.freq.e = 0;
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iwe.u.freq.m = bss_info->channel;
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current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
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/* add quality statistics */
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iwe.cmd = IWEVQUAL;
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iwe.u.qual.level = bss_info->RSSI;
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iwe.u.qual.noise = bss_info->phy_noise;
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iwe.u.qual.qual = 0;
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current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
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/* send rate information */
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iwe.cmd = SIOCGIWRATE;
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current_val = current_ev + IW_EV_LCP_LEN;
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iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
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for(j = 0 ; j < bss_info->rateset.count ; j++) {
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iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
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current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
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}
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if((current_val - current_ev) > IW_EV_LCP_LEN)
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current_ev = current_val;
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info_ptr += sizeof(wl_bss_info_t);
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if (bss_info->ie_length % 4)
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info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
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else
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info_ptr += bss_info->ie_length;
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bss_info = (wl_bss_info_t *) info_ptr;
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}
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wrqu->data.length = (current_ev - extra);
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wrqu->data.flags = 0;
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return 0;
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}
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static int wlcompat_ioctl(struct net_device *dev,
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struct iw_request_info *info,
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union iwreq_data *wrqu,
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char *extra)
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{
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switch (info->cmd) {
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case SIOCGIWNAME:
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strcpy(wrqu->name, "IEEE 802.11-DS");
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break;
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case SIOCGIWFREQ:
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{
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channel_info_t ci;
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if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
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return -EINVAL;
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wrqu->freq.m = ci.target_channel;
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wrqu->freq.e = 0;
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break;
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}
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case SIOCSIWFREQ:
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{
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if (wrqu->freq.e == 1) {
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int channel = 0;
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int f = wrqu->freq.m / 100000;
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while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
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channel++;
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if (channel == NUM_CHANNELS) // channel not found
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return -EINVAL;
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wrqu->freq.e = 0;
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wrqu->freq.m = channel + 1;
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}
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if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
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if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
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return -EINVAL;
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} else {
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return -EINVAL;
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}
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break;
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}
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case SIOCGIWAP:
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{
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wrqu->ap_addr.sa_family = ARPHRD_ETHER;
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if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
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return -EINVAL;
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break;
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}
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case SIOCGIWESSID:
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{
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wlc_ssid_t ssid;
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if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
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return -EINVAL;
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wrqu->essid.flags = wrqu->data.flags = 1;
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wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
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memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
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break;
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}
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case SIOCSIWESSID:
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{
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wlc_ssid_t ssid;
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memset(&ssid, 0, sizeof(ssid));
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ssid.SSID_len = strlen(extra);
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if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
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ssid.SSID_len = WLC_ESSID_MAX_SIZE;
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memcpy(ssid.SSID, extra, ssid.SSID_len);
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if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
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return -EINVAL;
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break;
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}
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case SIOCGIWRTS:
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{
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if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
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return -EINVAL;
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break;
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}
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case SIOCSIWRTS:
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{
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if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
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return -EINVAL;
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break;
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}
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case SIOCGIWFRAG:
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{
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if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
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return -EINVAL;
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break;
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}
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case SIOCSIWFRAG:
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{
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if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
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return -EINVAL;
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break;
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}
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case SIOCGIWTXPOW:
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{
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wrqu->txpower.value = 0;
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if (wl_ioctl(dev,WLC_GET_TXPWR, &(wrqu->txpower.value), sizeof(int)) < 0)
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return -EINVAL;
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wrqu->txpower.fixed = 0;
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wrqu->txpower.disabled = 0;
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wrqu->txpower.flags = IW_TXPOW_MWATT;
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break;
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}
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case SIOCSIWTXPOW:
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{
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if (wrqu->txpower.flags != IW_TXPOW_MWATT)
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return -EINVAL;
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if (wl_ioctl(dev, WLC_SET_TXPWR, &wrqu->txpower.value, sizeof(int)) < 0)
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return -EINVAL;
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}
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case SIOCGIWENCODE:
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{
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int val = 0;
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if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
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return -EINVAL;
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if (val > 0) {
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wrqu->data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
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} else {
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wrqu->data.flags = IW_ENCODE_DISABLED;
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}
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break;
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}
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case SIOCGIWRANGE:
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{
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return wlcompat_ioctl_getiwrange(dev, extra);
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break;
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}
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case SIOCSIWMODE:
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{
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int ap = -1, infra = -1, passive = 0, wet = 0;
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switch (wrqu->mode) {
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case IW_MODE_MONITOR:
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passive = 1;
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break;
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case IW_MODE_ADHOC:
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infra = 0;
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ap = 0;
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break;
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case IW_MODE_MASTER:
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infra = 1;
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ap = 1;
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break;
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case IW_MODE_INFRA:
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infra = 1;
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ap = 0;
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break;
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case IW_MODE_REPEAT:
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infra = 1;
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ap = 0;
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wet = 1;
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break;
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default:
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return -EINVAL;
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}
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if (wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)) < 0)
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return -EINVAL;
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if (wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)) < 0)
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return -EINVAL;
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if (wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)) < 0)
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return -EINVAL;
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if (ap >= 0)
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if (wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)) < 0)
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return -EINVAL;
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if (infra >= 0)
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if (wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)) < 0)
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return -EINVAL;
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break;
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}
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case SIOCGIWMODE:
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{
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int ap, infra, wet, passive;
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if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
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return -EINVAL;
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if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
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return -EINVAL;
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if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
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return -EINVAL;
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if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
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return -EINVAL;
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if (passive) {
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wrqu->mode = IW_MODE_MONITOR;
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} else if (!infra) {
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wrqu->mode = IW_MODE_ADHOC;
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} else {
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if (ap) {
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wrqu->mode = IW_MODE_MASTER;
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} else {
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if (wet) {
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wrqu->mode = IW_MODE_REPEAT;
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} else {
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wrqu->mode = IW_MODE_INFRA;
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}
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}
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}
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break;
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}
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default:
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{
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return -EINVAL;
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}
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}
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return 0;
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}
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static const iw_handler wlcompat_handler[] = {
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NULL, /* SIOCSIWCOMMIT */
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wlcompat_ioctl, /* SIOCGIWNAME */
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NULL, /* SIOCSIWNWID */
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NULL, /* SIOCGIWNWID */
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wlcompat_ioctl, /* SIOCSIWFREQ */
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wlcompat_ioctl, /* SIOCGIWFREQ */
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wlcompat_ioctl, /* SIOCSIWMODE */
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wlcompat_ioctl, /* SIOCGIWMODE */
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NULL, /* SIOCSIWSENS */
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NULL, /* SIOCGIWSENS */
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NULL, /* SIOCSIWRANGE, unused */
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wlcompat_ioctl, /* SIOCGIWRANGE */
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NULL, /* SIOCSIWPRIV */
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NULL, /* SIOCGIWPRIV */
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NULL, /* SIOCSIWSTATS */
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NULL, /* SIOCGIWSTATS */
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iw_handler_set_spy, /* SIOCSIWSPY */
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iw_handler_get_spy, /* SIOCGIWSPY */
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iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
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iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
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NULL, /* SIOCSIWAP */
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wlcompat_ioctl, /* SIOCGIWAP */
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NULL, /* -- hole -- */
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NULL, /* SIOCGIWAPLIST */
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wlcompat_set_scan, /* SIOCSIWSCAN */
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wlcompat_get_scan, /* SIOCGIWSCAN */
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wlcompat_ioctl, /* SIOCSIWESSID */
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wlcompat_ioctl, /* SIOCGIWESSID */
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NULL, /* SIOCSIWNICKN */
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NULL, /* SIOCGIWNICKN */
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NULL, /* -- hole -- */
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NULL, /* -- hole -- */
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NULL, /* SIOCSIWRATE */
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NULL, /* SIOCGIWRATE */
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wlcompat_ioctl, /* SIOCSIWRTS */
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wlcompat_ioctl, /* SIOCGIWRTS */
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wlcompat_ioctl, /* SIOCSIWFRAG */
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|
wlcompat_ioctl, /* SIOCGIWFRAG */
|
|
wlcompat_ioctl, /* SIOCSIWTXPOW */
|
|
wlcompat_ioctl, /* SIOCGIWTXPOW */
|
|
NULL, /* SIOCSIWRETRY */
|
|
NULL, /* SIOCGIWRETRY */
|
|
NULL, /* SIOCSIWENCODE */
|
|
wlcompat_ioctl, /* SIOCGIWENCODE */
|
|
};
|
|
|
|
static const struct iw_handler_def wlcompat_handler_def =
|
|
{
|
|
.standard = (iw_handler *) wlcompat_handler,
|
|
.num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
|
|
.private = NULL,
|
|
.num_private = 0,
|
|
.private_args = NULL,
|
|
.num_private_args = 0,
|
|
};
|
|
|
|
#ifdef DEBUG
|
|
static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
|
|
void print_buffer(int len, unsigned char *buf) {
|
|
int x;
|
|
if (buf != NULL) {
|
|
for (x=0;x<len && x<180 ;x++) {
|
|
if ((x % 4) == 0)
|
|
printk(" ");
|
|
printk("%02X",buf[x]);
|
|
}
|
|
} else {
|
|
printk(" NULL");
|
|
}
|
|
printk("\n");
|
|
|
|
}
|
|
static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
|
|
int ret = 0;
|
|
printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
|
|
if (cmd==SIOCDEVPRIVATE) {
|
|
wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
|
|
unsigned char *buf = ioc->buf;
|
|
printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
|
|
printk(" send: ->");
|
|
print_buffer(ioc->len, buf);
|
|
ret = old_ioctl(dev,ifr,cmd);
|
|
printk(" recv: ->");
|
|
print_buffer(ioc->len, buf);
|
|
printk(" ret: %d\n", ret);
|
|
} else {
|
|
ret = old_ioctl(dev,ifr,cmd);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static int __init wlcompat_init()
|
|
{
|
|
dev = dev_get_by_name("eth1");
|
|
#ifdef DEBUG
|
|
old_ioctl = dev->do_ioctl;
|
|
dev->do_ioctl = new_ioctl;
|
|
#endif
|
|
dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
|
|
return 0;
|
|
}
|
|
|
|
static void __exit wlcompat_exit()
|
|
{
|
|
dev->wireless_handlers = NULL;
|
|
#ifdef DEBUG
|
|
dev->do_ioctl = old_ioctl;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
EXPORT_NO_SYMBOLS;
|
|
MODULE_AUTHOR("openwrt.org");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(wlcompat_init);
|
|
module_exit(wlcompat_exit);
|