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// insert header here
// mbm. gpl.
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/if_arp.h>
#include <asm/uaccess.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <wlioctl.h>
#define DEBUG
static struct net_device *dev;
/* 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]) )
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 wlcompat_ioctl_getiwrange(struct net_device *dev,
char *extra)
{
int i, k;
struct iw_range *range;
range = (struct iw_range *) extra;
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_rts = 0;
if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
range->max_rts = 2347;
range->min_frag = 256;
if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
range->max_frag = 2346;
range->min_pmp = 0;
range->max_pmp = 65535000;
range->min_pmt = 0;
range->max_pmt = 65535 * 1000;
range->txpower_capa = IW_TXPOW_MWATT;
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.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 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 > WLC_ESSID_MAX_SIZE)
ssid.SSID_len = WLC_ESSID_MAX_SIZE;
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_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCSIWRTS:
{
if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCGIWFRAG:
{
if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCSIWFRAG:
{
if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCGIWTXPOW:
{
wrqu->txpower.value = 0;
if (wl_ioctl(dev,WLC_GET_TXPWR, &(wrqu->txpower.value), sizeof(int)) < 0)
return -EINVAL;
wrqu->txpower.fixed = 0;
wrqu->txpower.disabled = 0;
wrqu->txpower.flags = IW_TXPOW_MWATT;
break;
}
case SIOCSIWTXPOW:
{
if (wrqu->txpower.flags != IW_TXPOW_MWATT)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_TXPWR, &wrqu->txpower.value, sizeof(int)) < 0)
return -EINVAL;
}
case SIOCGIWENCODE:
{
wrqu->data.flags = IW_ENCODE_DISABLED;
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;
}
if (wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)) < 0)
return -EINVAL;
if (ap >= 0)
if (wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)) < 0)
return -EINVAL;
if (infra >= 0)
if (wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)) < 0)
return -EINVAL;
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;
}
}
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 */
NULL, /* SIOCSIWAP */
wlcompat_ioctl, /* SIOCGIWAP */
NULL, /* -- hole -- */
NULL, /* SIOCGIWAPLIST */
NULL, /* -- hole -- */
NULL, /* -- hole -- */
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 */
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);
static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
int ret = old_ioctl(dev,ifr,cmd);
printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
if (cmd==SIOCDEVPRIVATE) {
int x;
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(" ->");
for (x=0;x<ioc->len && x<128 ;x++) {
printk("%02X",buf[x]);
}
printk("\n");
}
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);
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