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openwrt/package/wlcompat/src/wlcompat.c

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/*
* wlcompat.c
*
* Copyright (C) 2005 Mike Baker
* Copyright (C) 2005-2007 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id$
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <net/iw_handler.h>
#include <asm/uaccess.h>
#include <typedefs.h>
#include <bcmutils.h>
#include <wlioctl.h>
static struct net_device *dev;
static struct iw_statistics wstats;
#ifndef DEBUG
static int random = 1;
#endif
static int last_mode = -1;
static int scan_cur = 0;
char buf[WLC_IOCTL_MAXLEN];
/* The frequency of each channel in MHz */
const long channel_frequency[] = {
2412, 2417, 2422, 2427, 2432, 2437, 2442,
2447, 2452, 2457, 2462, 2467, 2472, 2484
};
#define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
#define SCAN_RETRY_MAX 5
#define RNG_POLL_FREQ 1
typedef struct internal_wsec_key {
uint8 index; // 0x00
uint8 unknown_1; // 0x01
uint8 type; // 0x02
uint8 unknown_2[7]; // 0x03
uint8 len; // 0x0a
uint8 pad[3];
char data[32]; // 0x0e
} wkey;
#ifdef DEBUG
void print_buffer(int len, unsigned char *buf);
#endif
static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
{
mm_segment_t old_fs = get_fs();
struct ifreq ifr;
int ret;
wl_ioctl_t ioc;
ioc.cmd = cmd;
ioc.buf = buf;
ioc.len = len;
strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
ifr.ifr_data = (caddr_t) &ioc;
set_fs(KERNEL_DS);
ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
set_fs (old_fs);
return ret;
}
static int
wl_iovar_getbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
{
int err;
uint namelen;
uint iolen;
namelen = strlen(iovar) + 1; /* length of iovar name plus null */
iolen = namelen + paramlen;
/* check for overflow */
if (iolen > buflen)
return (BCME_BUFTOOSHORT);
memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
memcpy((int8*)bufptr + namelen, param, paramlen);
err = wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen);
return (err);
}
static int
wl_iovar_setbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
{
uint namelen;
uint iolen;
namelen = strlen(iovar) + 1; /* length of iovar name plus null */
iolen = namelen + paramlen;
/* check for overflow */
if (iolen > buflen)
return (BCME_BUFTOOSHORT);
memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
memcpy((int8*)bufptr + namelen, param, paramlen);
return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen);
}
static int
wl_iovar_set(struct net_device *dev, char *iovar, void *param, int paramlen)
{
char smbuf[WLC_IOCTL_SMLEN];
return wl_iovar_setbuf(dev, iovar, param, paramlen, smbuf, sizeof(smbuf));
}
static int
wl_iovar_get(struct net_device *dev, char *iovar, void *bufptr, int buflen)
{
char smbuf[WLC_IOCTL_SMLEN];
int ret;
/* use the return buffer if it is bigger than what we have on the stack */
if (buflen > sizeof(smbuf)) {
ret = wl_iovar_getbuf(dev, iovar, NULL, 0, bufptr, buflen);
} else {
ret = wl_iovar_getbuf(dev, iovar, NULL, 0, smbuf, sizeof(smbuf));
if (ret == 0)
memcpy(bufptr, smbuf, buflen);
}
return ret;
}
#ifdef notyet
/*
* format a bsscfg indexed iovar buffer
*/
static int
wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen,
int *plen)
{
char *prefix = "bsscfg:";
int8* p;
uint prefixlen;
uint namelen;
uint iolen;
prefixlen = strlen(prefix); /* length of bsscfg prefix */
namelen = strlen(iovar) + 1; /* length of iovar name + null */
iolen = prefixlen + namelen + sizeof(int) + paramlen;
/* check for overflow */
if (buflen < 0 || iolen > (uint)buflen) {
*plen = 0;
return BCME_BUFTOOSHORT;
}
p = (int8*)bufptr;
/* copy prefix, no null */
memcpy(p, prefix, prefixlen);
p += prefixlen;
/* copy iovar name including null */
memcpy(p, iovar, namelen);
p += namelen;
/* bss config index as first param */
memcpy(p, &bssidx, sizeof(int32));
p += sizeof(int32);
/* parameter buffer follows */
if (paramlen)
memcpy(p, param, paramlen);
*plen = iolen;
return 0;
}
/*
* set named & bss indexed driver variable to buffer value
*/
static int
wl_bssiovar_setbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
int buflen)
{
int err;
int iolen;
err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
if (err)
return err;
return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen);
}
/*
* get named & bss indexed driver variable buffer value
*/
static int
wl_bssiovar_getbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
int buflen)
{
int err;
int iolen;
err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
if (err)
return err;
return wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen);
}
/*
* set named & bss indexed driver variable to buffer value
*/
static int
wl_bssiovar_set(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen)
{
char smbuf[WLC_IOCTL_SMLEN];
return wl_bssiovar_setbuf(dev, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
}
/*
* get named & bss indexed driver variable buffer value
*/
static int
wl_bssiovar_get(struct net_device *dev, char *iovar, int bssidx, void *outbuf, int len)
{
char smbuf[WLC_IOCTL_SMLEN];
int err;
/* use the return buffer if it is bigger than what we have on the stack */
if (len > (int)sizeof(smbuf)) {
err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, outbuf, len);
} else {
memset(smbuf, 0, sizeof(smbuf));
err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
if (err == 0)
memcpy(outbuf, smbuf, len);
}
return err;
}
#endif
int get_primary_key(struct net_device *dev)
{
int key, val;
for (key = val = 0; (key < 4) && (val == 0); key++) {
val = key;
if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
return -EINVAL;
}
return key;
}
static int wlcompat_ioctl_getiwrange(struct net_device *dev,
char *extra)
{
int i, k;
struct iw_range *range;
range = (struct iw_range *) extra;
memset(extra, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = WIRELESS_EXT;
range->min_nwid = range->max_nwid = 0;
range->num_channels = NUM_CHANNELS;
k = 0;
for (i = 0; i < NUM_CHANNELS; i++) {
range->freq[k].i = i + 1;
range->freq[k].m = channel_frequency[i] * 100000;
range->freq[k].e = 1;
k++;
if (k >= IW_MAX_FREQUENCIES)
break;
}
range->num_frequency = k;
range->sensitivity = 3;
/* nbd: don't know what this means, but other drivers set it this way */
range->pmp_flags = IW_POWER_PERIOD;
range->pmt_flags = IW_POWER_TIMEOUT;
range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
range->min_pmp = 0;
range->max_pmp = 65535000;
range->min_pmt = 0;
range->max_pmt = 65535 * 1000;
range->max_qual.qual = 0;
range->max_qual.level = 0;
range->max_qual.noise = 0;
range->min_rts = 0;
if (wl_iovar_get(dev, "rtsthresh", &range->max_rts, sizeof(int)) < 0)
range->max_rts = 2347;
range->min_frag = 256;
if (wl_iovar_get(dev, "fragthresh", &range->max_frag, sizeof(int)) < 0)
range->max_frag = 2346;
range->txpower_capa = IW_TXPOW_DBM;
return 0;
}
static int wlcompat_set_scan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
int ap = 0;
wl_scan_params_t params;
memset(&params, 0, sizeof(params));
/* use defaults (same parameters as wl scan) */
memset(&params.bssid, 0xff, sizeof(params.bssid));
params.bss_type = DOT11_BSSTYPE_ANY;
params.scan_type = -1;
params.nprobes = -1;
params.active_time = -1;
params.passive_time = -1;
params.home_time = -1;
/* can only scan in STA mode */
wl_ioctl(dev, WLC_GET_AP, &last_mode, sizeof(last_mode));
if (last_mode > 0) {
/* switch to ap mode, scan result query will switch back */
wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
/* wait 250 msec after mode change */
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(250));
}
scan_cur = SCAN_RETRY_MAX;
while (scan_cur-- && (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)) {
/* sometimes the driver takes a few tries... */
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(250));
}
if (!scan_cur)
return -EINVAL;
scan_cur = 0;
/* wait at least 2 seconds for results */
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(2000));
return 0;
}
struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
{
struct wl_bss_info *bss_info = (struct wl_bss_info *) buf;
get_pktcnt_t pkt;
unsigned int rssi, noise, ap;
memset(&wstats, 0, sizeof(wstats));
memset(&pkt, 0, sizeof(pkt));
memset(buf, 0, sizeof(buf));
bss_info->version = 0x2000;
wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
rssi = 0;
if ((wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap) {
if (wl_ioctl(dev, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
noise = 0;
} else {
// somehow the structure doesn't fit here
rssi = buf[82];
noise = buf[84];
}
rssi = (rssi == 0 ? 1 : rssi);
wstats.qual.updated = 0x10;
if (rssi <= 1)
wstats.qual.updated |= 0x20;
if (noise <= 1)
wstats.qual.updated |= 0x40;
if ((wstats.qual.updated & 0x60) == 0x60)
return NULL;
wstats.qual.level = rssi;
wstats.qual.noise = noise;
wstats.discard.misc = pkt.rx_bad_pkt;
wstats.discard.retries = pkt.tx_bad_pkt;
return &wstats;
}
static int wlcompat_get_scan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
wl_scan_results_t *results = (wl_scan_results_t *) buf;
wl_bss_info_t *bss_info;
char *info_ptr;
char *current_ev = extra;
char *current_val;
char *end_buf = extra + IW_SCAN_MAX_DATA;
struct iw_event iwe;
int i, j;
int rssi, noise;
memset(buf, 0, WLC_IOCTL_MAXLEN);
results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
return -EAGAIN;
if ((results->count <= 0) && (scan_cur++ < SCAN_RETRY_MAX))
return -EAGAIN;
bss_info = &(results->bss_info[0]);
info_ptr = (char *) bss_info;
for (i = 0; i < results->count; i++) {
/* send the cell address (must be sent first) */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
/* send the ESSID */
iwe.cmd = SIOCGIWESSID;
iwe.u.data.length = bss_info->SSID_len;
if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
iwe.u.data.length = IW_ESSID_MAX_SIZE;
iwe.u.data.flags = 1;
current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
/* send mode */
if (bss_info->capability & (DOT11_CAP_ESS | DOT11_CAP_IBSS)) {
iwe.cmd = SIOCGIWMODE;
if (bss_info->capability & DOT11_CAP_ESS)
iwe.u.mode = IW_MODE_MASTER;
else if (bss_info->capability & DOT11_CAP_IBSS)
iwe.u.mode = IW_MODE_ADHOC;
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
}
/* send frequency/channel info */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.e = 0;
iwe.u.freq.m = bss_info->chanspec & WL_CHANSPEC_CHAN_MASK;
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
/* add quality statistics */
iwe.cmd = IWEVQUAL;
iwe.u.qual.qual = 0;
iwe.u.qual.level = bss_info->RSSI;
iwe.u.qual.noise = bss_info->phy_noise;
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
/* send encryption capability */
iwe.cmd = SIOCGIWENCODE;
iwe.u.data.pointer = NULL;
iwe.u.data.length = 0;
if (bss_info->capability & DOT11_CAP_PRIVACY)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, NULL);
/* send rate information */
iwe.cmd = SIOCGIWRATE;
current_val = current_ev + IW_EV_LCP_LEN;
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
for(j = 0 ; j < bss_info->rateset.count ; j++) {
iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
}
if((current_val - current_ev) > IW_EV_LCP_LEN)
current_ev = current_val;
info_ptr += sizeof(wl_bss_info_t);
if (bss_info->ie_length % 4)
info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
else
info_ptr += bss_info->ie_length;
bss_info = (wl_bss_info_t *) info_ptr;
}
wrqu->data.length = (current_ev - extra);
wrqu->data.flags = 0;
if (last_mode > 0)
/* switch back to ap mode */
wl_ioctl(dev, WLC_SET_AP, &last_mode, sizeof(last_mode));
return 0;
}
static int wlcompat_ioctl(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
switch (info->cmd) {
case SIOCGIWNAME:
strcpy(wrqu->name, "IEEE 802.11-DS");
break;
case SIOCGIWFREQ:
{
channel_info_t ci;
if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
return -EINVAL;
wrqu->freq.m = ci.target_channel;
wrqu->freq.e = 0;
break;
}
case SIOCSIWFREQ:
{
if (wrqu->freq.m == -1) {
wrqu->freq.m = 0;
if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
return -EINVAL;
} else {
if (wrqu->freq.e == 1) {
int channel = 0;
int f = wrqu->freq.m / 100000;
while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
channel++;
if (channel == NUM_CHANNELS) // channel not found
return -EINVAL;
wrqu->freq.e = 0;
wrqu->freq.m = channel + 1;
}
if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
return -EINVAL;
} else {
return -EINVAL;
}
}
break;
}
case SIOCSIWAP:
{
int ap = 0;
int infra = 0;
rw_reg_t reg;
memset(&reg, 0, sizeof(reg));
if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
return -EINVAL;
if (!infra)
wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
return -EINVAL;
break;
}
case SIOCGIWAP:
{
wrqu->ap_addr.sa_family = ARPHRD_ETHER;
if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
return -EINVAL;
break;
}
case SIOCGIWESSID:
{
wlc_ssid_t ssid;
if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
return -EINVAL;
wrqu->essid.flags = wrqu->data.flags = 1;
wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
break;
}
case SIOCSIWESSID:
{
wlc_ssid_t ssid;
memset(&ssid, 0, sizeof(ssid));
ssid.SSID_len = strlen(extra);
if (ssid.SSID_len > 32)
ssid.SSID_len = 32;
memcpy(ssid.SSID, extra, ssid.SSID_len);
if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
return -EINVAL;
break;
}
case SIOCGIWRTS:
{
if (wl_iovar_get(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCSIWRTS:
{
if (wl_iovar_set(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCGIWFRAG:
{
if (wl_iovar_get(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCSIWFRAG:
{
if (wl_iovar_set(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCGIWTXPOW:
{
int radio, override;
wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
if (wl_iovar_get(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
return -EINVAL;
override = (wrqu->txpower.value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE;
wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
if (!override && (wrqu->txpower.value > 76))
wrqu->txpower.value = 76;
wrqu->txpower.value /= 4;
wrqu->txpower.fixed = 0;
wrqu->txpower.disabled = radio;
wrqu->txpower.flags = IW_TXPOW_DBM;
break;
}
case SIOCSIWTXPOW:
{
/* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
int radio = wrqu->txpower.disabled;
wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
int value;
if (wl_iovar_get(dev, "qtxpower", &value, sizeof(int)) < 0)
return -EINVAL;
value &= WL_TXPWR_OVERRIDE;
wrqu->txpower.value *= 4;
wrqu->txpower.value |= value;
if (wrqu->txpower.flags != IW_TXPOW_DBM)
return -EINVAL;
if (wrqu->txpower.value > 0)
if (wl_iovar_set(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
return -EINVAL;
}
break;
}
case SIOCSIWENCODE:
{
int val = 0, wep = 1, wrestrict = 1;
int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
if (index < 0)
index = get_primary_key(dev);
if (wrqu->data.flags & IW_ENCODE_DISABLED) {
wep = 0;
if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
return -EINVAL;
return 0;
}
if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
return -EINVAL;
if (wrqu->data.flags & IW_ENCODE_OPEN)
wrestrict = 0;
if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
wl_wsec_key_t key;
memset(&key, 0, sizeof(key));
key.flags = WL_PRIMARY_KEY;
key.len = wrqu->data.length;
key.index = index;
memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
return -EINVAL;
}
if (index >= 0)
wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
if (wrestrict >= 0)
wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
break;
}
case SIOCGIWENCODE:
{
int val;
int key = get_primary_key(dev);
int *info_addr;
wkey *wep_key;
if (wl_ioctl(dev, WLC_GET_WSEC, &val, sizeof(val)) < 0)
return -EINVAL;
if (!(val & WEP_ENABLED)) {
wrqu->data.flags = IW_ENCODE_DISABLED;
break;
}
key = get_primary_key(dev);
wrqu->data.flags = IW_ENCODE_ENABLED;
/* the driver apparently doesn't allow us to read the wep key */
wrqu->data.flags |= IW_ENCODE_NOKEY;
break;
}
case SIOCGIWRANGE:
{
return wlcompat_ioctl_getiwrange(dev, extra);
break;
}
case SIOCSIWMODE:
{
int ap = -1, infra = -1, passive = 0, wet = 0;
switch (wrqu->mode) {
case IW_MODE_MONITOR:
passive = 1;
break;
case IW_MODE_ADHOC:
infra = 0;
ap = 0;
break;
case IW_MODE_MASTER:
infra = 1;
ap = 1;
break;
case IW_MODE_INFRA:
infra = 1;
ap = 0;
break;
case IW_MODE_REPEAT:
infra = 1;
ap = 0;
wet = 1;
break;
default:
return -EINVAL;
}
wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
if (ap >= 0)
wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
if (infra >= 0)
wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
break;
}
case SIOCGIWMODE:
{
int ap, infra, wet, passive;
if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
return -EINVAL;
if (passive) {
wrqu->mode = IW_MODE_MONITOR;
} else if (!infra) {
wrqu->mode = IW_MODE_ADHOC;
} else {
if (ap) {
wrqu->mode = IW_MODE_MASTER;
} else {
if (wet) {
wrqu->mode = IW_MODE_REPEAT;
} else {
wrqu->mode = IW_MODE_INFRA;
}
}
}
break;
}
default:
return -EINVAL;
break;
}
return 0;
}
static const iw_handler wlcompat_handler[] = {
NULL, /* SIOCSIWCOMMIT */
wlcompat_ioctl, /* SIOCGIWNAME */
NULL, /* SIOCSIWNWID */
NULL, /* SIOCGIWNWID */
wlcompat_ioctl, /* SIOCSIWFREQ */
wlcompat_ioctl, /* SIOCGIWFREQ */
wlcompat_ioctl, /* SIOCSIWMODE */
wlcompat_ioctl, /* SIOCGIWMODE */
NULL, /* SIOCSIWSENS */
NULL, /* SIOCGIWSENS */
NULL, /* SIOCSIWRANGE, unused */
wlcompat_ioctl, /* SIOCGIWRANGE */
NULL, /* SIOCSIWPRIV */
NULL, /* SIOCGIWPRIV */
NULL, /* SIOCSIWSTATS */
NULL, /* SIOCGIWSTATS */
iw_handler_set_spy, /* SIOCSIWSPY */
iw_handler_get_spy, /* SIOCGIWSPY */
iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
wlcompat_ioctl, /* SIOCSIWAP */
wlcompat_ioctl, /* SIOCGIWAP */
NULL, /* -- hole -- */
NULL, /* SIOCGIWAPLIST */
wlcompat_set_scan, /* SIOCSIWSCAN */
wlcompat_get_scan, /* SIOCGIWSCAN */
wlcompat_ioctl, /* SIOCSIWESSID */
wlcompat_ioctl, /* SIOCGIWESSID */
NULL, /* SIOCSIWNICKN */
NULL, /* SIOCGIWNICKN */
NULL, /* -- hole -- */
NULL, /* -- hole -- */
NULL, /* SIOCSIWRATE */
NULL, /* SIOCGIWRATE */
wlcompat_ioctl, /* SIOCSIWRTS */
wlcompat_ioctl, /* SIOCGIWRTS */
wlcompat_ioctl, /* SIOCSIWFRAG */
wlcompat_ioctl, /* SIOCGIWFRAG */
wlcompat_ioctl, /* SIOCSIWTXPOW */
wlcompat_ioctl, /* SIOCGIWTXPOW */
NULL, /* SIOCSIWRETRY */
NULL, /* SIOCGIWRETRY */
wlcompat_ioctl, /* 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),
};
#ifdef DEBUG
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");
}
#endif
static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
int ret = 0;
struct iwreq *iwr = (struct iwreq *) ifr;
struct iw_request_info info;
#ifdef DEBUG
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
#endif
{
ret = old_ioctl(dev,ifr,cmd);
}
return ret;
}
#ifndef DEBUG
static struct timer_list rng_timer;
static spinlock_t rng_lock = SPIN_LOCK_UNLOCKED;
static void rng_timer_tick(unsigned long n)
{
struct net_device *dev = (struct net_device *) n;
unsigned long flags;
u16 data[4];
int i, ret;
ret = 0;
spin_lock_irqsave(&rng_lock, flags);
for (i = 0; i < 3; i++) {
ret |= wl_iovar_get(dev, "rand", &data[i], sizeof(u16));
}
spin_unlock_irqrestore(&rng_lock, flags);
if (!ret)
batch_entropy_store(*((u32 *) &data[0]), *((u32 *) &data[2]), (jiffies % 255));
mod_timer(&rng_timer, jiffies + (HZ/RNG_POLL_FREQ));
}
#endif
static int __init wlcompat_init()
{
int found = 0, i;
char devname[4] = "wl0";
while (!found && (dev = dev_get_by_name(devname))) {
if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
found = 1;
devname[2]++;
}
if (!found) {
printk("No Broadcom devices found.\n");
return -ENODEV;
}
old_ioctl = dev->do_ioctl;
dev->do_ioctl = new_ioctl;
dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
dev->get_wireless_stats = wlcompat_get_wireless_stats;
#ifndef DEBUG
if (random) {
init_timer(&rng_timer);
rng_timer.function = rng_timer_tick;
rng_timer.data = (unsigned long) dev;
rng_timer_tick((unsigned long) dev);
}
#endif
#ifdef DEBUG
printk("broadcom driver private data: 0x%08x\n", dev->priv);
#endif
return 0;
}
static void __exit wlcompat_exit()
{
#ifndef DEBUG
if (random)
del_timer(&rng_timer);
#endif
dev->get_wireless_stats = NULL;
dev->wireless_handlers = NULL;
dev->do_ioctl = old_ioctl;
return;
}
EXPORT_NO_SYMBOLS;
MODULE_AUTHOR("openwrt.org");
MODULE_LICENSE("GPL");
#ifndef DEBUG
module_param(random, int, 0);
#endif
module_init(wlcompat_init);
module_exit(wlcompat_exit);
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