package/openwrt/wlcompat.c

   1 // insert header here
   2 // mbm. gpl.
   3
   4 #include <linux/config.h>
   5 #include <linux/module.h>
   6 #include <linux/init.h>
   7 #include <linux/if_arp.h>
   8 #include <asm/uaccess.h>
   9 #include <linux/wireless.h>
  10
  11 #include <net/iw_handler.h>
  12 #include <wlioctl.h>
  13
  14 #define DEBUG
  15
  16 static struct net_device *dev;
  17
  18 /* The frequency of each channel in MHz */
  19 const long channel_frequency[] = {
  20         2412, 2417, 2422, 2427, 2432, 2437, 2442,
  21         2447, 2452, 2457, 2462, 2467, 2472, 2484
  22 };
  23 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
  24
  25 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
  26 {
  27         mm_segment_t old_fs = get_fs();
  28         struct ifreq ifr;
  29         int ret;
  30         wl_ioctl_t ioc;
  31         ioc.cmd = cmd;
  32         ioc.buf = buf;
  33         ioc.len = len;
  34         strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
  35         ifr.ifr_data = (caddr_t) &ioc;
  36         set_fs(KERNEL_DS);
  37         ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
  38         set_fs (old_fs);
  39         return ret;
  40 }
  41
  42 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
  43                                     char *extra)
  44 {
  45         int i, k;
  46         struct iw_range *range;
  47
  48         range = (struct iw_range *) extra;
  49
  50         range->we_version_compiled = WIRELESS_EXT;
  51         range->we_version_source = WIRELESS_EXT;
  52
  53         range->min_nwid = range->max_nwid = 0;
  54
  55         range->num_channels = NUM_CHANNELS;
  56         k = 0;
  57         for (i = 0; i < NUM_CHANNELS; i++) {
  58                 range->freq[k].i = i + 1;
  59                 range->freq[k].m = channel_frequency[i] * 100000;
  60                 range->freq[k].e = 1;
  61                 k++;
  62                 if (k >= IW_MAX_FREQUENCIES)
  63                         break;
  64         }
  65         range->num_frequency = k;
  66         range->sensitivity = 3;
  67
  68         /* nbd: don't know what this means, but other drivers set it this way */
  69         range->pmp_flags = IW_POWER_PERIOD;
  70         range->pmt_flags = IW_POWER_TIMEOUT;
  71         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
  72
  73         range->min_rts = 0;
  74         range->max_rts = 2347;
  75         range->min_frag = 256;
  76         range->max_frag = 2346;
  77
  78         range->min_pmp = 0;
  79         range->max_pmp = 65535000;
  80         range->min_pmt = 0;
  81         range->max_pmt = 65535 * 1000;
  82
  83         range->txpower_capa = IW_TXPOW_MWATT;
  84
  85         return 0;
  86 }
  87
  88 static int wlcompat_ioctl(struct net_device *dev,
  89                          struct iw_request_info *info,
  90                          union iwreq_data *wrqu,
  91                          char *extra)
  92 {
  93         int err = 0;
  94
  95         switch (info->cmd) {
  96                 case SIOCGIWNAME:
  97                         strcpy(wrqu->name, "IEEE 802.11-DS");
  98                         break;
  99                 case SIOCGIWFREQ:
 100                 {
 101                         channel_info_t ci;
 102                         wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci));
 103                         wrqu->freq.m = ci.target_channel;
 104                         wrqu->freq.e = 0;
 105                         break;
 106                 }
 107                 case SIOCGIWAP:
 108                 {
 109                         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 110                         wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6);
 111                         break;
 112                 }
 113                 case SIOCGIWESSID:
 114                 {
 115                         wlc_ssid_t ssid;
 116                         wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t));
 117                         wrqu->essid.flags = wrqu->data.flags = 1;
 118                         wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
 119                         memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
 120                         break;
 121                 }
 122                 case SIOCGIWRTS:
 123                 {
 124                         wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int));
 125                         break;
 126                 }
 127                 case SIOCGIWFRAG:
 128                 {
 129                         wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int));
 130                         break;
 131                 }
 132                 case SIOCGIWTXPOW:
 133                 {
 134                         wrqu->txpower.value = 0;
 135                         wl_ioctl(dev,WLC_GET_TXPWR, &(wrqu->txpower.value), sizeof(int));
 136                         wrqu->txpower.fixed = 0;
 137                         wrqu->txpower.disabled = 0;
 138                         wrqu->txpower.flags = IW_TXPOW_MWATT;
 139                         break;
 140                 }
 141                 case SIOCGIWENCODE:
 142                 {
 143                         wrqu->data.flags = IW_ENCODE_DISABLED;
 144                         break;
 145                 }
 146                 case SIOCGIWRANGE:
 147                 {
 148                         err = wlcompat_ioctl_getiwrange(dev, extra);
 149                         break;
 150                 }
 151         }
 152
 153         return err;
 154 }
 155
 156 static const iw_handler  wlcompat_handler[] = {
 157         NULL,                   /* SIOCSIWCOMMIT */
 158         wlcompat_ioctl,         /* SIOCGIWNAME */
 159         NULL,                   /* SIOCSIWNWID */
 160         NULL,                   /* SIOCGIWNWID */
 161         NULL,                   /* SIOCSIWFREQ */
 162         wlcompat_ioctl,         /* SIOCGIWFREQ */
 163         NULL,                   /* SIOCSIWMODE */
 164         NULL,                   /* SIOCGIWMODE */
 165         NULL,                   /* SIOCSIWSENS */
 166         NULL,                   /* SIOCGIWSENS */
 167         NULL,                   /* SIOCSIWRANGE */
 168         wlcompat_ioctl,         /* SIOCGIWRANGE */
 169         NULL,                   /* SIOCSIWPRIV */
 170         NULL,                   /* SIOCGIWPRIV */
 171         NULL,                   /* SIOCSIWSTATS */
 172         NULL,                   /* SIOCGIWSTATS */
 173         iw_handler_set_spy,     /* SIOCSIWSPY */
 174         iw_handler_get_spy,     /* SIOCGIWSPY */
 175         iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
 176         iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
 177         NULL,                   /* SIOCSIWAP */
 178         wlcompat_ioctl,         /* SIOCGIWAP */
 179         NULL,                   /* -- hole -- */
 180         NULL,                   /* SIOCGIWAPLIST */
 181         NULL,                   /* -- hole -- */
 182         NULL,                   /* -- hole -- */
 183         NULL,                   /* SIOCSIWESSID */
 184         wlcompat_ioctl,         /* SIOCGIWESSID */
 185         NULL,                   /* SIOCSIWNICKN */
 186         NULL,                   /* SIOCGIWNICKN */
 187         NULL,                   /* -- hole -- */
 188         NULL,                   /* -- hole -- */
 189         NULL,                   /* SIOCSIWRATE */
 190         NULL,                   /* SIOCGIWRATE */
 191         NULL,                   /* SIOCSIWRTS */
 192         wlcompat_ioctl,         /* SIOCGIWRTS */
 193         NULL,                   /* SIOCSIWFRAG */
 194         wlcompat_ioctl,         /* SIOCGIWFRAG */
 195         NULL,                   /* SIOCSIWTXPOW */
 196         wlcompat_ioctl,         /* SIOCGIWTXPOW */
 197         NULL,                   /* SIOCSIWRETRY */
 198         NULL,                   /* SIOCGIWRETRY */
 199         NULL,                   /* SIOCSIWENCODE */
 200         wlcompat_ioctl,         /* SIOCGIWENCODE */
 201 };
 202
 203 static const struct iw_handler_def      wlcompat_handler_def =
 204 {
 205         .standard       = (iw_handler *) wlcompat_handler,
 206         .num_standard   = sizeof(wlcompat_handler)/sizeof(iw_handler),
 207         .private        = NULL,
 208         .num_private    = 0,
 209         .private_args   = NULL,
 210         .num_private_args = 0,
 211 };
 212
 213 #ifdef DEBUG
 214 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
 215 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
 216         int ret = old_ioctl(dev,ifr,cmd);
 217         printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
 218         if (cmd==SIOCDEVPRIVATE) {
 219                 int x;
 220                 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
 221                 unsigned char *buf = ioc->buf;
 222                 printk("   cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
 223                 printk("   ->");
 224                 for (x=0;x<ioc->len && x<128 ;x++) {
 225                         printk("%02X",buf[x]);
 226                 }
 227                 printk("\n");
 228         }
 229         return ret;
 230 }
 231 #endif
 232
 233 static int __init wlcompat_init()
 234 {
 235         dev = dev_get_by_name("eth1");
 236 #ifdef DEBUG
 237         old_ioctl = dev->do_ioctl;
 238         dev->do_ioctl = new_ioctl;
 239 #endif
 240         dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
 241         return 0;
 242 }
 243
 244 static void __exit wlcompat_exit()
 245 {
 246         dev->wireless_handlers = NULL;
 247 #ifdef DEBUG
 248         dev->do_ioctl = old_ioctl;
 249 #endif
 250         return;
 251 }
 252
 253 EXPORT_NO_SYMBOLS;
 254 MODULE_AUTHOR("openwrt.org");
 255 MODULE_LICENSE("GPL");
 256
 257 module_init(wlcompat_init);
 258 module_exit(wlcompat_exit);