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0001 // SPDX-License-Identifier: GPL-2.0
0002 /* ioctl() (mostly Linux Wireless Extensions) routines for Host AP driver */
0003 
0004 #include <linux/slab.h>
0005 #include <linux/types.h>
0006 #include <linux/sched/signal.h>
0007 #include <linux/ethtool.h>
0008 #include <linux/if_arp.h>
0009 #include <linux/module.h>
0010 #include <linux/etherdevice.h>
0011 #include <net/lib80211.h>
0012 
0013 #include "hostap_wlan.h"
0014 #include "hostap.h"
0015 #include "hostap_ap.h"
0016 
0017 static struct iw_statistics *hostap_get_wireless_stats(struct net_device *dev)
0018 {
0019     struct hostap_interface *iface;
0020     local_info_t *local;
0021     struct iw_statistics *wstats;
0022 
0023     iface = netdev_priv(dev);
0024     local = iface->local;
0025 
0026     /* Why are we doing that ? Jean II */
0027     if (iface->type != HOSTAP_INTERFACE_MAIN)
0028         return NULL;
0029 
0030     wstats = &local->wstats;
0031 
0032     wstats->status = 0;
0033     wstats->discard.code =
0034         local->comm_tallies.rx_discards_wep_undecryptable;
0035     wstats->discard.misc =
0036         local->comm_tallies.rx_fcs_errors +
0037         local->comm_tallies.rx_discards_no_buffer +
0038         local->comm_tallies.tx_discards_wrong_sa;
0039 
0040     wstats->discard.retries =
0041         local->comm_tallies.tx_retry_limit_exceeded;
0042     wstats->discard.fragment =
0043         local->comm_tallies.rx_message_in_bad_msg_fragments;
0044 
0045     if (local->iw_mode != IW_MODE_MASTER &&
0046         local->iw_mode != IW_MODE_REPEAT) {
0047 
0048         if (prism2_update_comms_qual(dev) == 0)
0049             wstats->qual.updated = IW_QUAL_ALL_UPDATED |
0050                 IW_QUAL_DBM;
0051 
0052         wstats->qual.qual = local->comms_qual;
0053         wstats->qual.level = local->avg_signal;
0054         wstats->qual.noise = local->avg_noise;
0055     } else {
0056         wstats->qual.qual = 0;
0057         wstats->qual.level = 0;
0058         wstats->qual.noise = 0;
0059         wstats->qual.updated = IW_QUAL_ALL_INVALID;
0060     }
0061 
0062     return wstats;
0063 }
0064 
0065 
0066 static int prism2_get_datarates(struct net_device *dev, u8 *rates)
0067 {
0068     struct hostap_interface *iface;
0069     local_info_t *local;
0070     u8 buf[12];
0071     int len;
0072     u16 val;
0073 
0074     iface = netdev_priv(dev);
0075     local = iface->local;
0076 
0077     len = local->func->get_rid(dev, HFA384X_RID_SUPPORTEDDATARATES, buf,
0078                    sizeof(buf), 0);
0079     if (len < 2)
0080         return 0;
0081 
0082     val = le16_to_cpu(*(__le16 *) buf); /* string length */
0083 
0084     if (len - 2 < val || val > 10)
0085         return 0;
0086 
0087     memcpy(rates, buf + 2, val);
0088     return val;
0089 }
0090 
0091 
0092 static int prism2_get_name(struct net_device *dev,
0093                struct iw_request_info *info,
0094                char *name, char *extra)
0095 {
0096     u8 rates[10];
0097     int len, i, over2 = 0;
0098 
0099     len = prism2_get_datarates(dev, rates);
0100 
0101     for (i = 0; i < len; i++) {
0102         if (rates[i] == 0x0b || rates[i] == 0x16) {
0103             over2 = 1;
0104             break;
0105         }
0106     }
0107 
0108     strcpy(name, over2 ? "IEEE 802.11b" : "IEEE 802.11-DS");
0109 
0110     return 0;
0111 }
0112 
0113 
0114 static int prism2_ioctl_siwencode(struct net_device *dev,
0115                   struct iw_request_info *info,
0116                   struct iw_point *erq, char *keybuf)
0117 {
0118     struct hostap_interface *iface;
0119     local_info_t *local;
0120     int i;
0121     struct lib80211_crypt_data **crypt;
0122 
0123     iface = netdev_priv(dev);
0124     local = iface->local;
0125 
0126     i = erq->flags & IW_ENCODE_INDEX;
0127     if (i < 1 || i > 4)
0128         i = local->crypt_info.tx_keyidx;
0129     else
0130         i--;
0131     if (i < 0 || i >= WEP_KEYS)
0132         return -EINVAL;
0133 
0134     crypt = &local->crypt_info.crypt[i];
0135 
0136     if (erq->flags & IW_ENCODE_DISABLED) {
0137         if (*crypt)
0138             lib80211_crypt_delayed_deinit(&local->crypt_info, crypt);
0139         goto done;
0140     }
0141 
0142     if (*crypt != NULL && (*crypt)->ops != NULL &&
0143         strcmp((*crypt)->ops->name, "WEP") != 0) {
0144         /* changing to use WEP; deinit previously used algorithm */
0145         lib80211_crypt_delayed_deinit(&local->crypt_info, crypt);
0146     }
0147 
0148     if (*crypt == NULL) {
0149         struct lib80211_crypt_data *new_crypt;
0150 
0151         /* take WEP into use */
0152         new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
0153                 GFP_KERNEL);
0154         if (new_crypt == NULL)
0155             return -ENOMEM;
0156         new_crypt->ops = lib80211_get_crypto_ops("WEP");
0157         if (!new_crypt->ops) {
0158             request_module("lib80211_crypt_wep");
0159             new_crypt->ops = lib80211_get_crypto_ops("WEP");
0160         }
0161         if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
0162             new_crypt->priv = new_crypt->ops->init(i);
0163         if (!new_crypt->ops || !new_crypt->priv) {
0164             kfree(new_crypt);
0165             new_crypt = NULL;
0166 
0167             printk(KERN_WARNING "%s: could not initialize WEP: "
0168                    "load module hostap_crypt_wep.o\n",
0169                    dev->name);
0170             return -EOPNOTSUPP;
0171         }
0172         *crypt = new_crypt;
0173     }
0174 
0175     if (erq->length > 0) {
0176         int len = erq->length <= 5 ? 5 : 13;
0177         int first = 1, j;
0178         if (len > erq->length)
0179             memset(keybuf + erq->length, 0, len - erq->length);
0180         (*crypt)->ops->set_key(keybuf, len, NULL, (*crypt)->priv);
0181         for (j = 0; j < WEP_KEYS; j++) {
0182             if (j != i && local->crypt_info.crypt[j]) {
0183                 first = 0;
0184                 break;
0185             }
0186         }
0187         if (first)
0188             local->crypt_info.tx_keyidx = i;
0189     } else {
0190         /* No key data - just set the default TX key index */
0191         local->crypt_info.tx_keyidx = i;
0192     }
0193 
0194  done:
0195     local->open_wep = erq->flags & IW_ENCODE_OPEN;
0196 
0197     if (hostap_set_encryption(local)) {
0198         printk(KERN_DEBUG "%s: set_encryption failed\n", dev->name);
0199         return -EINVAL;
0200     }
0201 
0202     /* Do not reset port0 if card is in Managed mode since resetting will
0203      * generate new IEEE 802.11 authentication which may end up in looping
0204      * with IEEE 802.1X. Prism2 documentation seem to require port reset
0205      * after WEP configuration. However, keys are apparently changed at
0206      * least in Managed mode. */
0207     if (local->iw_mode != IW_MODE_INFRA && local->func->reset_port(dev)) {
0208         printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
0209         return -EINVAL;
0210     }
0211 
0212     return 0;
0213 }
0214 
0215 
0216 static int prism2_ioctl_giwencode(struct net_device *dev,
0217                   struct iw_request_info *info,
0218                   struct iw_point *erq, char *key)
0219 {
0220     struct hostap_interface *iface;
0221     local_info_t *local;
0222     int i, len;
0223     u16 val;
0224     struct lib80211_crypt_data *crypt;
0225 
0226     iface = netdev_priv(dev);
0227     local = iface->local;
0228 
0229     i = erq->flags & IW_ENCODE_INDEX;
0230     if (i < 1 || i > 4)
0231         i = local->crypt_info.tx_keyidx;
0232     else
0233         i--;
0234     if (i < 0 || i >= WEP_KEYS)
0235         return -EINVAL;
0236 
0237     crypt = local->crypt_info.crypt[i];
0238     erq->flags = i + 1;
0239 
0240     if (crypt == NULL || crypt->ops == NULL) {
0241         erq->length = 0;
0242         erq->flags |= IW_ENCODE_DISABLED;
0243         return 0;
0244     }
0245 
0246     if (strcmp(crypt->ops->name, "WEP") != 0) {
0247         /* only WEP is supported with wireless extensions, so just
0248          * report that encryption is used */
0249         erq->length = 0;
0250         erq->flags |= IW_ENCODE_ENABLED;
0251         return 0;
0252     }
0253 
0254     /* Reads from HFA384X_RID_CNFDEFAULTKEY* return bogus values, so show
0255      * the keys from driver buffer */
0256     len = crypt->ops->get_key(key, WEP_KEY_LEN, NULL, crypt->priv);
0257     erq->length = (len >= 0 ? len : 0);
0258 
0259     if (local->func->get_rid(dev, HFA384X_RID_CNFWEPFLAGS, &val, 2, 1) < 0)
0260     {
0261         printk("CNFWEPFLAGS reading failed\n");
0262         return -EOPNOTSUPP;
0263     }
0264     le16_to_cpus(&val);
0265     if (val & HFA384X_WEPFLAGS_PRIVACYINVOKED)
0266         erq->flags |= IW_ENCODE_ENABLED;
0267     else
0268         erq->flags |= IW_ENCODE_DISABLED;
0269     if (val & HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED)
0270         erq->flags |= IW_ENCODE_RESTRICTED;
0271     else
0272         erq->flags |= IW_ENCODE_OPEN;
0273 
0274     return 0;
0275 }
0276 
0277 
0278 static int hostap_set_rate(struct net_device *dev)
0279 {
0280     struct hostap_interface *iface;
0281     local_info_t *local;
0282     int ret, basic_rates;
0283 
0284     iface = netdev_priv(dev);
0285     local = iface->local;
0286 
0287     basic_rates = local->basic_rates & local->tx_rate_control;
0288     if (!basic_rates || basic_rates != local->basic_rates) {
0289         printk(KERN_INFO "%s: updating basic rate set automatically "
0290                "to match with the new supported rate set\n",
0291                dev->name);
0292         if (!basic_rates)
0293             basic_rates = local->tx_rate_control;
0294 
0295         local->basic_rates = basic_rates;
0296         if (hostap_set_word(dev, HFA384X_RID_CNFBASICRATES,
0297                     basic_rates))
0298             printk(KERN_WARNING "%s: failed to set "
0299                    "cnfBasicRates\n", dev->name);
0300     }
0301 
0302     ret = (hostap_set_word(dev, HFA384X_RID_TXRATECONTROL,
0303                    local->tx_rate_control) ||
0304            hostap_set_word(dev, HFA384X_RID_CNFSUPPORTEDRATES,
0305                    local->tx_rate_control) ||
0306            local->func->reset_port(dev));
0307 
0308     if (ret) {
0309         printk(KERN_WARNING "%s: TXRateControl/cnfSupportedRates "
0310                "setting to 0x%x failed\n",
0311                dev->name, local->tx_rate_control);
0312     }
0313 
0314     /* Update TX rate configuration for all STAs based on new operational
0315      * rate set. */
0316     hostap_update_rates(local);
0317 
0318     return ret;
0319 }
0320 
0321 
0322 static int prism2_ioctl_siwrate(struct net_device *dev,
0323                 struct iw_request_info *info,
0324                 struct iw_param *rrq, char *extra)
0325 {
0326     struct hostap_interface *iface;
0327     local_info_t *local;
0328 
0329     iface = netdev_priv(dev);
0330     local = iface->local;
0331 
0332     if (rrq->fixed) {
0333         switch (rrq->value) {
0334         case 11000000:
0335             local->tx_rate_control = HFA384X_RATES_11MBPS;
0336             break;
0337         case 5500000:
0338             local->tx_rate_control = HFA384X_RATES_5MBPS;
0339             break;
0340         case 2000000:
0341             local->tx_rate_control = HFA384X_RATES_2MBPS;
0342             break;
0343         case 1000000:
0344             local->tx_rate_control = HFA384X_RATES_1MBPS;
0345             break;
0346         default:
0347             local->tx_rate_control = HFA384X_RATES_1MBPS |
0348                 HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS |
0349                 HFA384X_RATES_11MBPS;
0350             break;
0351         }
0352     } else {
0353         switch (rrq->value) {
0354         case 11000000:
0355             local->tx_rate_control = HFA384X_RATES_1MBPS |
0356                 HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS |
0357                 HFA384X_RATES_11MBPS;
0358             break;
0359         case 5500000:
0360             local->tx_rate_control = HFA384X_RATES_1MBPS |
0361                 HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS;
0362             break;
0363         case 2000000:
0364             local->tx_rate_control = HFA384X_RATES_1MBPS |
0365                 HFA384X_RATES_2MBPS;
0366             break;
0367         case 1000000:
0368             local->tx_rate_control = HFA384X_RATES_1MBPS;
0369             break;
0370         default:
0371             local->tx_rate_control = HFA384X_RATES_1MBPS |
0372                 HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS |
0373                 HFA384X_RATES_11MBPS;
0374             break;
0375         }
0376     }
0377 
0378     return hostap_set_rate(dev);
0379 }
0380 
0381 
0382 static int prism2_ioctl_giwrate(struct net_device *dev,
0383                 struct iw_request_info *info,
0384                 struct iw_param *rrq, char *extra)
0385 {
0386     u16 val;
0387     struct hostap_interface *iface;
0388     local_info_t *local;
0389     int ret = 0;
0390 
0391     iface = netdev_priv(dev);
0392     local = iface->local;
0393 
0394     if (local->func->get_rid(dev, HFA384X_RID_TXRATECONTROL, &val, 2, 1) <
0395         0)
0396         return -EINVAL;
0397 
0398     if ((val & 0x1) && (val > 1))
0399         rrq->fixed = 0;
0400     else
0401         rrq->fixed = 1;
0402 
0403     if (local->iw_mode == IW_MODE_MASTER && local->ap != NULL &&
0404         !local->fw_tx_rate_control) {
0405         /* HFA384X_RID_CURRENTTXRATE seems to always be 2 Mbps in
0406          * Host AP mode, so use the recorded TX rate of the last sent
0407          * frame */
0408         rrq->value = local->ap->last_tx_rate > 0 ?
0409             local->ap->last_tx_rate * 100000 : 11000000;
0410         return 0;
0411     }
0412 
0413     if (local->func->get_rid(dev, HFA384X_RID_CURRENTTXRATE, &val, 2, 1) <
0414         0)
0415         return -EINVAL;
0416 
0417     switch (val) {
0418     case HFA384X_RATES_1MBPS:
0419         rrq->value = 1000000;
0420         break;
0421     case HFA384X_RATES_2MBPS:
0422         rrq->value = 2000000;
0423         break;
0424     case HFA384X_RATES_5MBPS:
0425         rrq->value = 5500000;
0426         break;
0427     case HFA384X_RATES_11MBPS:
0428         rrq->value = 11000000;
0429         break;
0430     default:
0431         /* should not happen */
0432         rrq->value = 11000000;
0433         ret = -EINVAL;
0434         break;
0435     }
0436 
0437     return ret;
0438 }
0439 
0440 
0441 static int prism2_ioctl_siwsens(struct net_device *dev,
0442                 struct iw_request_info *info,
0443                 struct iw_param *sens, char *extra)
0444 {
0445     struct hostap_interface *iface;
0446     local_info_t *local;
0447 
0448     iface = netdev_priv(dev);
0449     local = iface->local;
0450 
0451     /* Set the desired AP density */
0452     if (sens->value < 1 || sens->value > 3)
0453         return -EINVAL;
0454 
0455     if (hostap_set_word(dev, HFA384X_RID_CNFSYSTEMSCALE, sens->value) ||
0456         local->func->reset_port(dev))
0457         return -EINVAL;
0458 
0459     return 0;
0460 }
0461 
0462 static int prism2_ioctl_giwsens(struct net_device *dev,
0463                 struct iw_request_info *info,
0464                 struct iw_param *sens, char *extra)
0465 {
0466     struct hostap_interface *iface;
0467     local_info_t *local;
0468     __le16 val;
0469 
0470     iface = netdev_priv(dev);
0471     local = iface->local;
0472 
0473     /* Get the current AP density */
0474     if (local->func->get_rid(dev, HFA384X_RID_CNFSYSTEMSCALE, &val, 2, 1) <
0475         0)
0476         return -EINVAL;
0477 
0478     sens->value = le16_to_cpu(val);
0479     sens->fixed = 1;
0480 
0481     return 0;
0482 }
0483 
0484 
0485 /* Deprecated in new wireless extension API */
0486 static int prism2_ioctl_giwaplist(struct net_device *dev,
0487                   struct iw_request_info *info,
0488                   struct iw_point *data, char *extra)
0489 {
0490     struct hostap_interface *iface;
0491     local_info_t *local;
0492     struct sockaddr *addr;
0493     struct iw_quality *qual;
0494 
0495     iface = netdev_priv(dev);
0496     local = iface->local;
0497 
0498     if (local->iw_mode != IW_MODE_MASTER) {
0499         printk(KERN_DEBUG "SIOCGIWAPLIST is currently only supported "
0500                "in Host AP mode\n");
0501         data->length = 0;
0502         return -EOPNOTSUPP;
0503     }
0504 
0505     addr = kmalloc_array(IW_MAX_AP, sizeof(struct sockaddr), GFP_KERNEL);
0506     qual = kmalloc_array(IW_MAX_AP, sizeof(struct iw_quality), GFP_KERNEL);
0507     if (addr == NULL || qual == NULL) {
0508         kfree(addr);
0509         kfree(qual);
0510         data->length = 0;
0511         return -ENOMEM;
0512     }
0513 
0514     data->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_AP, 1);
0515 
0516     memcpy(extra, addr, sizeof(struct sockaddr) * data->length);
0517     data->flags = 1; /* has quality information */
0518     memcpy(extra + sizeof(struct sockaddr) * data->length, qual,
0519            sizeof(struct iw_quality) * data->length);
0520 
0521     kfree(addr);
0522     kfree(qual);
0523     return 0;
0524 }
0525 
0526 
0527 static int prism2_ioctl_siwrts(struct net_device *dev,
0528                    struct iw_request_info *info,
0529                    struct iw_param *rts, char *extra)
0530 {
0531     struct hostap_interface *iface;
0532     local_info_t *local;
0533     __le16 val;
0534 
0535     iface = netdev_priv(dev);
0536     local = iface->local;
0537 
0538     if (rts->disabled)
0539         val = cpu_to_le16(2347);
0540     else if (rts->value < 0 || rts->value > 2347)
0541         return -EINVAL;
0542     else
0543         val = cpu_to_le16(rts->value);
0544 
0545     if (local->func->set_rid(dev, HFA384X_RID_RTSTHRESHOLD, &val, 2) ||
0546         local->func->reset_port(dev))
0547         return -EINVAL;
0548 
0549     local->rts_threshold = rts->value;
0550 
0551     return 0;
0552 }
0553 
0554 static int prism2_ioctl_giwrts(struct net_device *dev,
0555                    struct iw_request_info *info,
0556                    struct iw_param *rts, char *extra)
0557 {
0558     struct hostap_interface *iface;
0559     local_info_t *local;
0560     __le16 val;
0561 
0562     iface = netdev_priv(dev);
0563     local = iface->local;
0564 
0565     if (local->func->get_rid(dev, HFA384X_RID_RTSTHRESHOLD, &val, 2, 1) <
0566         0)
0567         return -EINVAL;
0568 
0569     rts->value = le16_to_cpu(val);
0570     rts->disabled = (rts->value == 2347);
0571     rts->fixed = 1;
0572 
0573     return 0;
0574 }
0575 
0576 
0577 static int prism2_ioctl_siwfrag(struct net_device *dev,
0578                 struct iw_request_info *info,
0579                 struct iw_param *rts, char *extra)
0580 {
0581     struct hostap_interface *iface;
0582     local_info_t *local;
0583     __le16 val;
0584 
0585     iface = netdev_priv(dev);
0586     local = iface->local;
0587 
0588     if (rts->disabled)
0589         val = cpu_to_le16(2346);
0590     else if (rts->value < 256 || rts->value > 2346)
0591         return -EINVAL;
0592     else
0593         val = cpu_to_le16(rts->value & ~0x1); /* even numbers only */
0594 
0595     local->fragm_threshold = rts->value & ~0x1;
0596     if (local->func->set_rid(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD, &val,
0597                  2)
0598         || local->func->reset_port(dev))
0599         return -EINVAL;
0600 
0601     return 0;
0602 }
0603 
0604 static int prism2_ioctl_giwfrag(struct net_device *dev,
0605                 struct iw_request_info *info,
0606                 struct iw_param *rts, char *extra)
0607 {
0608     struct hostap_interface *iface;
0609     local_info_t *local;
0610     __le16 val;
0611 
0612     iface = netdev_priv(dev);
0613     local = iface->local;
0614 
0615     if (local->func->get_rid(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD,
0616                  &val, 2, 1) < 0)
0617         return -EINVAL;
0618 
0619     rts->value = le16_to_cpu(val);
0620     rts->disabled = (rts->value == 2346);
0621     rts->fixed = 1;
0622 
0623     return 0;
0624 }
0625 
0626 
0627 #ifndef PRISM2_NO_STATION_MODES
0628 static int hostap_join_ap(struct net_device *dev)
0629 {
0630     struct hostap_interface *iface;
0631     local_info_t *local;
0632     struct hfa384x_join_request req;
0633     unsigned long flags;
0634     int i;
0635     struct hfa384x_hostscan_result *entry;
0636 
0637     iface = netdev_priv(dev);
0638     local = iface->local;
0639 
0640     memcpy(req.bssid, local->preferred_ap, ETH_ALEN);
0641     req.channel = 0;
0642 
0643     spin_lock_irqsave(&local->lock, flags);
0644     for (i = 0; i < local->last_scan_results_count; i++) {
0645         if (!local->last_scan_results)
0646             break;
0647         entry = &local->last_scan_results[i];
0648         if (ether_addr_equal(local->preferred_ap, entry->bssid)) {
0649             req.channel = entry->chid;
0650             break;
0651         }
0652     }
0653     spin_unlock_irqrestore(&local->lock, flags);
0654 
0655     if (local->func->set_rid(dev, HFA384X_RID_JOINREQUEST, &req,
0656                  sizeof(req))) {
0657         printk(KERN_DEBUG "%s: JoinRequest %pM failed\n",
0658                dev->name, local->preferred_ap);
0659         return -1;
0660     }
0661 
0662     printk(KERN_DEBUG "%s: Trying to join BSSID %pM\n",
0663            dev->name, local->preferred_ap);
0664 
0665     return 0;
0666 }
0667 #endif /* PRISM2_NO_STATION_MODES */
0668 
0669 
0670 static int prism2_ioctl_siwap(struct net_device *dev,
0671                   struct iw_request_info *info,
0672                   struct sockaddr *ap_addr, char *extra)
0673 {
0674 #ifdef PRISM2_NO_STATION_MODES
0675     return -EOPNOTSUPP;
0676 #else /* PRISM2_NO_STATION_MODES */
0677     struct hostap_interface *iface;
0678     local_info_t *local;
0679 
0680     iface = netdev_priv(dev);
0681     local = iface->local;
0682 
0683     memcpy(local->preferred_ap, &ap_addr->sa_data, ETH_ALEN);
0684 
0685     if (local->host_roaming == 1 && local->iw_mode == IW_MODE_INFRA) {
0686         struct hfa384x_scan_request scan_req;
0687         memset(&scan_req, 0, sizeof(scan_req));
0688         scan_req.channel_list = cpu_to_le16(0x3fff);
0689         scan_req.txrate = cpu_to_le16(HFA384X_RATES_1MBPS);
0690         if (local->func->set_rid(dev, HFA384X_RID_SCANREQUEST,
0691                      &scan_req, sizeof(scan_req))) {
0692             printk(KERN_DEBUG "%s: ScanResults request failed - "
0693                    "preferred AP delayed to next unsolicited "
0694                    "scan\n", dev->name);
0695         }
0696     } else if (local->host_roaming == 2 &&
0697            local->iw_mode == IW_MODE_INFRA) {
0698         if (hostap_join_ap(dev))
0699             return -EINVAL;
0700     } else {
0701         printk(KERN_DEBUG "%s: Preferred AP (SIOCSIWAP) is used only "
0702                "in Managed mode when host_roaming is enabled\n",
0703                dev->name);
0704     }
0705 
0706     return 0;
0707 #endif /* PRISM2_NO_STATION_MODES */
0708 }
0709 
0710 static int prism2_ioctl_giwap(struct net_device *dev,
0711                   struct iw_request_info *info,
0712                   struct sockaddr *ap_addr, char *extra)
0713 {
0714     struct hostap_interface *iface;
0715     local_info_t *local;
0716 
0717     iface = netdev_priv(dev);
0718     local = iface->local;
0719 
0720     ap_addr->sa_family = ARPHRD_ETHER;
0721     switch (iface->type) {
0722     case HOSTAP_INTERFACE_AP:
0723         memcpy(&ap_addr->sa_data, dev->dev_addr, ETH_ALEN);
0724         break;
0725     case HOSTAP_INTERFACE_STA:
0726         memcpy(&ap_addr->sa_data, local->assoc_ap_addr, ETH_ALEN);
0727         break;
0728     case HOSTAP_INTERFACE_WDS:
0729         memcpy(&ap_addr->sa_data, iface->u.wds.remote_addr, ETH_ALEN);
0730         break;
0731     default:
0732         if (local->func->get_rid(dev, HFA384X_RID_CURRENTBSSID,
0733                      &ap_addr->sa_data, ETH_ALEN, 1) < 0)
0734             return -EOPNOTSUPP;
0735 
0736         /* local->bssid is also updated in LinkStatus handler when in
0737          * station mode */
0738         memcpy(local->bssid, &ap_addr->sa_data, ETH_ALEN);
0739         break;
0740     }
0741 
0742     return 0;
0743 }
0744 
0745 
0746 static int prism2_ioctl_siwnickn(struct net_device *dev,
0747                  struct iw_request_info *info,
0748                  struct iw_point *data, char *nickname)
0749 {
0750     struct hostap_interface *iface;
0751     local_info_t *local;
0752 
0753     iface = netdev_priv(dev);
0754     local = iface->local;
0755 
0756     memset(local->name, 0, sizeof(local->name));
0757     memcpy(local->name, nickname, data->length);
0758     local->name_set = 1;
0759 
0760     if (hostap_set_string(dev, HFA384X_RID_CNFOWNNAME, local->name) ||
0761         local->func->reset_port(dev))
0762         return -EINVAL;
0763 
0764     return 0;
0765 }
0766 
0767 static int prism2_ioctl_giwnickn(struct net_device *dev,
0768                  struct iw_request_info *info,
0769                  struct iw_point *data, char *nickname)
0770 {
0771     struct hostap_interface *iface;
0772     local_info_t *local;
0773     int len;
0774     char name[MAX_NAME_LEN + 3];
0775     u16 val;
0776 
0777     iface = netdev_priv(dev);
0778     local = iface->local;
0779 
0780     len = local->func->get_rid(dev, HFA384X_RID_CNFOWNNAME,
0781                    &name, MAX_NAME_LEN + 2, 0);
0782     val = le16_to_cpu(*(__le16 *) name);
0783     if (len > MAX_NAME_LEN + 2 || len < 0 || val > MAX_NAME_LEN)
0784         return -EOPNOTSUPP;
0785 
0786     name[val + 2] = '\0';
0787     data->length = val + 1;
0788     memcpy(nickname, name + 2, val + 1);
0789 
0790     return 0;
0791 }
0792 
0793 
0794 static int prism2_ioctl_siwfreq(struct net_device *dev,
0795                 struct iw_request_info *info,
0796                 struct iw_freq *freq, char *extra)
0797 {
0798     struct hostap_interface *iface;
0799     local_info_t *local;
0800 
0801     iface = netdev_priv(dev);
0802     local = iface->local;
0803 
0804     /* freq => chan. */
0805     if (freq->e == 1 &&
0806         freq->m / 100000 >= freq_list[0] &&
0807         freq->m / 100000 <= freq_list[FREQ_COUNT - 1]) {
0808         int ch;
0809         int fr = freq->m / 100000;
0810         for (ch = 0; ch < FREQ_COUNT; ch++) {
0811             if (fr == freq_list[ch]) {
0812                 freq->e = 0;
0813                 freq->m = ch + 1;
0814                 break;
0815             }
0816         }
0817     }
0818 
0819     if (freq->e != 0 || freq->m < 1 || freq->m > FREQ_COUNT ||
0820         !(local->channel_mask & (1 << (freq->m - 1))))
0821         return -EINVAL;
0822 
0823     local->channel = freq->m; /* channel is used in prism2_setup_rids() */
0824     if (hostap_set_word(dev, HFA384X_RID_CNFOWNCHANNEL, local->channel) ||
0825         local->func->reset_port(dev))
0826         return -EINVAL;
0827 
0828     return 0;
0829 }
0830 
0831 static int prism2_ioctl_giwfreq(struct net_device *dev,
0832                 struct iw_request_info *info,
0833                 struct iw_freq *freq, char *extra)
0834 {
0835     struct hostap_interface *iface;
0836     local_info_t *local;
0837     u16 val;
0838 
0839     iface = netdev_priv(dev);
0840     local = iface->local;
0841 
0842     if (local->func->get_rid(dev, HFA384X_RID_CURRENTCHANNEL, &val, 2, 1) <
0843         0)
0844         return -EINVAL;
0845 
0846     le16_to_cpus(&val);
0847     if (val < 1 || val > FREQ_COUNT)
0848         return -EINVAL;
0849 
0850     freq->m = freq_list[val - 1] * 100000;
0851     freq->e = 1;
0852 
0853     return 0;
0854 }
0855 
0856 
0857 static void hostap_monitor_set_type(local_info_t *local)
0858 {
0859     struct net_device *dev = local->ddev;
0860 
0861     if (dev == NULL)
0862         return;
0863 
0864     if (local->monitor_type == PRISM2_MONITOR_PRISM ||
0865         local->monitor_type == PRISM2_MONITOR_CAPHDR) {
0866         dev->type = ARPHRD_IEEE80211_PRISM;
0867     } else if (local->monitor_type == PRISM2_MONITOR_RADIOTAP) {
0868         dev->type = ARPHRD_IEEE80211_RADIOTAP;
0869     } else {
0870         dev->type = ARPHRD_IEEE80211;
0871     }
0872 }
0873 
0874 
0875 static int prism2_ioctl_siwessid(struct net_device *dev,
0876                  struct iw_request_info *info,
0877                  struct iw_point *data, char *ssid)
0878 {
0879     struct hostap_interface *iface;
0880     local_info_t *local;
0881 
0882     iface = netdev_priv(dev);
0883     local = iface->local;
0884 
0885     if (iface->type == HOSTAP_INTERFACE_WDS)
0886         return -EOPNOTSUPP;
0887 
0888     if (data->flags == 0)
0889         ssid[0] = '\0'; /* ANY */
0890 
0891     if (local->iw_mode == IW_MODE_MASTER && ssid[0] == '\0') {
0892         /* Setting SSID to empty string seems to kill the card in
0893          * Host AP mode */
0894         printk(KERN_DEBUG "%s: Host AP mode does not support "
0895                "'Any' essid\n", dev->name);
0896         return -EINVAL;
0897     }
0898 
0899     memcpy(local->essid, ssid, data->length);
0900     local->essid[data->length] = '\0';
0901 
0902     if ((!local->fw_ap &&
0903          hostap_set_string(dev, HFA384X_RID_CNFDESIREDSSID, local->essid))
0904         || hostap_set_string(dev, HFA384X_RID_CNFOWNSSID, local->essid) ||
0905         local->func->reset_port(dev))
0906         return -EINVAL;
0907 
0908     return 0;
0909 }
0910 
0911 static int prism2_ioctl_giwessid(struct net_device *dev,
0912                  struct iw_request_info *info,
0913                  struct iw_point *data, char *essid)
0914 {
0915     struct hostap_interface *iface;
0916     local_info_t *local;
0917     u16 val;
0918 
0919     iface = netdev_priv(dev);
0920     local = iface->local;
0921 
0922     if (iface->type == HOSTAP_INTERFACE_WDS)
0923         return -EOPNOTSUPP;
0924 
0925     data->flags = 1; /* active */
0926     if (local->iw_mode == IW_MODE_MASTER) {
0927         data->length = strlen(local->essid);
0928         memcpy(essid, local->essid, IW_ESSID_MAX_SIZE);
0929     } else {
0930         int len;
0931         char ssid[MAX_SSID_LEN + 2];
0932         memset(ssid, 0, sizeof(ssid));
0933         len = local->func->get_rid(dev, HFA384X_RID_CURRENTSSID,
0934                        &ssid, MAX_SSID_LEN + 2, 0);
0935         val = le16_to_cpu(*(__le16 *) ssid);
0936         if (len > MAX_SSID_LEN + 2 || len < 0 || val > MAX_SSID_LEN) {
0937             return -EOPNOTSUPP;
0938         }
0939         data->length = val;
0940         memcpy(essid, ssid + 2, IW_ESSID_MAX_SIZE);
0941     }
0942 
0943     return 0;
0944 }
0945 
0946 
0947 static int prism2_ioctl_giwrange(struct net_device *dev,
0948                  struct iw_request_info *info,
0949                  struct iw_point *data, char *extra)
0950 {
0951     struct hostap_interface *iface;
0952     local_info_t *local;
0953     struct iw_range *range = (struct iw_range *) extra;
0954     u8 rates[10];
0955     u16 val;
0956     int i, len, over2;
0957 
0958     iface = netdev_priv(dev);
0959     local = iface->local;
0960 
0961     data->length = sizeof(struct iw_range);
0962     memset(range, 0, sizeof(struct iw_range));
0963 
0964     /* TODO: could fill num_txpower and txpower array with
0965      * something; however, there are 128 different values.. */
0966 
0967     range->txpower_capa = IW_TXPOW_DBM;
0968 
0969     if (local->iw_mode == IW_MODE_INFRA || local->iw_mode == IW_MODE_ADHOC)
0970     {
0971         range->min_pmp = 1 * 1024;
0972         range->max_pmp = 65535 * 1024;
0973         range->min_pmt = 1 * 1024;
0974         range->max_pmt = 1000 * 1024;
0975         range->pmp_flags = IW_POWER_PERIOD;
0976         range->pmt_flags = IW_POWER_TIMEOUT;
0977         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT |
0978             IW_POWER_UNICAST_R | IW_POWER_ALL_R;
0979     }
0980 
0981     range->we_version_compiled = WIRELESS_EXT;
0982     range->we_version_source = 18;
0983 
0984     range->retry_capa = IW_RETRY_LIMIT;
0985     range->retry_flags = IW_RETRY_LIMIT;
0986     range->min_retry = 0;
0987     range->max_retry = 255;
0988 
0989     range->num_channels = FREQ_COUNT;
0990 
0991     val = 0;
0992     for (i = 0; i < FREQ_COUNT; i++) {
0993         if (local->channel_mask & (1 << i)) {
0994             range->freq[val].i = i + 1;
0995             range->freq[val].m = freq_list[i] * 100000;
0996             range->freq[val].e = 1;
0997             val++;
0998         }
0999         if (val == IW_MAX_FREQUENCIES)
1000             break;
1001     }
1002     range->num_frequency = val;
1003 
1004     if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
1005         range->max_qual.qual = 70; /* what is correct max? This was not
1006                         * documented exactly. At least
1007                         * 69 has been observed. */
1008         range->max_qual.level = 0; /* dB */
1009         range->max_qual.noise = 0; /* dB */
1010 
1011         /* What would be suitable values for "average/typical" qual? */
1012         range->avg_qual.qual = 20;
1013         range->avg_qual.level = -60;
1014         range->avg_qual.noise = -95;
1015     } else {
1016         range->max_qual.qual = 92; /* 0 .. 92 */
1017         range->max_qual.level = 154; /* 27 .. 154 */
1018         range->max_qual.noise = 154; /* 27 .. 154 */
1019     }
1020     range->sensitivity = 3;
1021 
1022     range->max_encoding_tokens = WEP_KEYS;
1023     range->num_encoding_sizes = 2;
1024     range->encoding_size[0] = 5;
1025     range->encoding_size[1] = 13;
1026 
1027     over2 = 0;
1028     len = prism2_get_datarates(dev, rates);
1029     range->num_bitrates = 0;
1030     for (i = 0; i < len; i++) {
1031         if (range->num_bitrates < IW_MAX_BITRATES) {
1032             range->bitrate[range->num_bitrates] =
1033                 rates[i] * 500000;
1034             range->num_bitrates++;
1035         }
1036         if (rates[i] == 0x0b || rates[i] == 0x16)
1037             over2 = 1;
1038     }
1039     /* estimated maximum TCP throughput values (bps) */
1040     range->throughput = over2 ? 5500000 : 1500000;
1041 
1042     range->min_rts = 0;
1043     range->max_rts = 2347;
1044     range->min_frag = 256;
1045     range->max_frag = 2346;
1046 
1047     /* Event capability (kernel + driver) */
1048     range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
1049                 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
1050                 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
1051                 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
1052     range->event_capa[1] = IW_EVENT_CAPA_K_1;
1053     range->event_capa[4] = (IW_EVENT_CAPA_MASK(IWEVTXDROP) |
1054                 IW_EVENT_CAPA_MASK(IWEVCUSTOM) |
1055                 IW_EVENT_CAPA_MASK(IWEVREGISTERED) |
1056                 IW_EVENT_CAPA_MASK(IWEVEXPIRED));
1057 
1058     range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
1059         IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
1060 
1061     if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1))
1062         range->scan_capa = IW_SCAN_CAPA_ESSID;
1063 
1064     return 0;
1065 }
1066 
1067 
1068 static int hostap_monitor_mode_enable(local_info_t *local)
1069 {
1070     struct net_device *dev = local->dev;
1071 
1072     printk(KERN_DEBUG "Enabling monitor mode\n");
1073     hostap_monitor_set_type(local);
1074 
1075     if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
1076                 HFA384X_PORTTYPE_PSEUDO_IBSS)) {
1077         printk(KERN_DEBUG "Port type setting for monitor mode "
1078                "failed\n");
1079         return -EOPNOTSUPP;
1080     }
1081 
1082     /* Host decrypt is needed to get the IV and ICV fields;
1083      * however, monitor mode seems to remove WEP flag from frame
1084      * control field */
1085     if (hostap_set_word(dev, HFA384X_RID_CNFWEPFLAGS,
1086                 HFA384X_WEPFLAGS_HOSTENCRYPT |
1087                 HFA384X_WEPFLAGS_HOSTDECRYPT)) {
1088         printk(KERN_DEBUG "WEP flags setting failed\n");
1089         return -EOPNOTSUPP;
1090     }
1091 
1092     if (local->func->reset_port(dev) ||
1093         local->func->cmd(dev, HFA384X_CMDCODE_TEST |
1094                  (HFA384X_TEST_MONITOR << 8),
1095                  0, NULL, NULL)) {
1096         printk(KERN_DEBUG "Setting monitor mode failed\n");
1097         return -EOPNOTSUPP;
1098     }
1099 
1100     return 0;
1101 }
1102 
1103 
1104 static int hostap_monitor_mode_disable(local_info_t *local)
1105 {
1106     struct net_device *dev = local->ddev;
1107 
1108     if (dev == NULL)
1109         return -1;
1110 
1111     printk(KERN_DEBUG "%s: Disabling monitor mode\n", dev->name);
1112     dev->type = ARPHRD_ETHER;
1113 
1114     if (local->func->cmd(dev, HFA384X_CMDCODE_TEST |
1115                  (HFA384X_TEST_STOP << 8),
1116                  0, NULL, NULL))
1117         return -1;
1118     return hostap_set_encryption(local);
1119 }
1120 
1121 
1122 static int prism2_ioctl_siwmode(struct net_device *dev,
1123                 struct iw_request_info *info,
1124                 __u32 *mode, char *extra)
1125 {
1126     struct hostap_interface *iface;
1127     local_info_t *local;
1128     int double_reset = 0;
1129 
1130     iface = netdev_priv(dev);
1131     local = iface->local;
1132 
1133     if (*mode != IW_MODE_ADHOC && *mode != IW_MODE_INFRA &&
1134         *mode != IW_MODE_MASTER && *mode != IW_MODE_REPEAT &&
1135         *mode != IW_MODE_MONITOR)
1136         return -EOPNOTSUPP;
1137 
1138 #ifdef PRISM2_NO_STATION_MODES
1139     if (*mode == IW_MODE_ADHOC || *mode == IW_MODE_INFRA)
1140         return -EOPNOTSUPP;
1141 #endif /* PRISM2_NO_STATION_MODES */
1142 
1143     if (*mode == local->iw_mode)
1144         return 0;
1145 
1146     if (*mode == IW_MODE_MASTER && local->essid[0] == '\0') {
1147         printk(KERN_WARNING "%s: empty SSID not allowed in Master "
1148                "mode\n", dev->name);
1149         return -EINVAL;
1150     }
1151 
1152     if (local->iw_mode == IW_MODE_MONITOR)
1153         hostap_monitor_mode_disable(local);
1154 
1155     if ((local->iw_mode == IW_MODE_ADHOC ||
1156          local->iw_mode == IW_MODE_MONITOR) && *mode == IW_MODE_MASTER) {
1157         /* There seems to be a firmware bug in at least STA f/w v1.5.6
1158          * that leaves beacon frames to use IBSS type when moving from
1159          * IBSS to Host AP mode. Doing double Port0 reset seems to be
1160          * enough to workaround this. */
1161         double_reset = 1;
1162     }
1163 
1164     printk(KERN_DEBUG "prism2: %s: operating mode changed "
1165            "%d -> %d\n", dev->name, local->iw_mode, *mode);
1166     local->iw_mode = *mode;
1167 
1168     if (local->iw_mode == IW_MODE_MONITOR)
1169         hostap_monitor_mode_enable(local);
1170     else if (local->iw_mode == IW_MODE_MASTER && !local->host_encrypt &&
1171          !local->fw_encrypt_ok) {
1172         printk(KERN_DEBUG "%s: defaulting to host-based encryption as "
1173                "a workaround for firmware bug in Host AP mode WEP\n",
1174                dev->name);
1175         local->host_encrypt = 1;
1176     }
1177 
1178     if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
1179                 hostap_get_porttype(local)))
1180         return -EOPNOTSUPP;
1181 
1182     if (local->func->reset_port(dev))
1183         return -EINVAL;
1184     if (double_reset && local->func->reset_port(dev))
1185         return -EINVAL;
1186 
1187     if (local->iw_mode != IW_MODE_INFRA && local->iw_mode != IW_MODE_ADHOC)
1188     {
1189         /* netif_carrier is used only in client modes for now, so make
1190          * sure carrier is on when moving to non-client modes. */
1191         netif_carrier_on(local->dev);
1192         netif_carrier_on(local->ddev);
1193     }
1194     return 0;
1195 }
1196 
1197 
1198 static int prism2_ioctl_giwmode(struct net_device *dev,
1199                 struct iw_request_info *info,
1200                 __u32 *mode, char *extra)
1201 {
1202     struct hostap_interface *iface;
1203     local_info_t *local;
1204 
1205     iface = netdev_priv(dev);
1206     local = iface->local;
1207 
1208     switch (iface->type) {
1209     case HOSTAP_INTERFACE_STA:
1210         *mode = IW_MODE_INFRA;
1211         break;
1212     case HOSTAP_INTERFACE_WDS:
1213         *mode = IW_MODE_REPEAT;
1214         break;
1215     default:
1216         *mode = local->iw_mode;
1217         break;
1218     }
1219     return 0;
1220 }
1221 
1222 
1223 static int prism2_ioctl_siwpower(struct net_device *dev,
1224                  struct iw_request_info *info,
1225                  struct iw_param *wrq, char *extra)
1226 {
1227 #ifdef PRISM2_NO_STATION_MODES
1228     return -EOPNOTSUPP;
1229 #else /* PRISM2_NO_STATION_MODES */
1230     int ret = 0;
1231 
1232     if (wrq->disabled)
1233         return hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 0);
1234 
1235     switch (wrq->flags & IW_POWER_MODE) {
1236     case IW_POWER_UNICAST_R:
1237         ret = hostap_set_word(dev, HFA384X_RID_CNFMULTICASTRECEIVE, 0);
1238         if (ret)
1239             return ret;
1240         ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
1241         if (ret)
1242             return ret;
1243         break;
1244     case IW_POWER_ALL_R:
1245         ret = hostap_set_word(dev, HFA384X_RID_CNFMULTICASTRECEIVE, 1);
1246         if (ret)
1247             return ret;
1248         ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
1249         if (ret)
1250             return ret;
1251         break;
1252     case IW_POWER_ON:
1253         break;
1254     default:
1255         return -EINVAL;
1256     }
1257 
1258     if (wrq->flags & IW_POWER_TIMEOUT) {
1259         ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
1260         if (ret)
1261             return ret;
1262         ret = hostap_set_word(dev, HFA384X_RID_CNFPMHOLDOVERDURATION,
1263                       wrq->value / 1024);
1264         if (ret)
1265             return ret;
1266     }
1267     if (wrq->flags & IW_POWER_PERIOD) {
1268         ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
1269         if (ret)
1270             return ret;
1271         ret = hostap_set_word(dev, HFA384X_RID_CNFMAXSLEEPDURATION,
1272                       wrq->value / 1024);
1273         if (ret)
1274             return ret;
1275     }
1276 
1277     return ret;
1278 #endif /* PRISM2_NO_STATION_MODES */
1279 }
1280 
1281 
1282 static int prism2_ioctl_giwpower(struct net_device *dev,
1283                  struct iw_request_info *info,
1284                  struct iw_param *rrq, char *extra)
1285 {
1286 #ifdef PRISM2_NO_STATION_MODES
1287     return -EOPNOTSUPP;
1288 #else /* PRISM2_NO_STATION_MODES */
1289     struct hostap_interface *iface;
1290     local_info_t *local;
1291     __le16 enable, mcast;
1292 
1293     iface = netdev_priv(dev);
1294     local = iface->local;
1295 
1296     if (local->func->get_rid(dev, HFA384X_RID_CNFPMENABLED, &enable, 2, 1)
1297         < 0)
1298         return -EINVAL;
1299 
1300     if (!le16_to_cpu(enable)) {
1301         rrq->disabled = 1;
1302         return 0;
1303     }
1304 
1305     rrq->disabled = 0;
1306 
1307     if ((rrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
1308         __le16 timeout;
1309         if (local->func->get_rid(dev,
1310                      HFA384X_RID_CNFPMHOLDOVERDURATION,
1311                      &timeout, 2, 1) < 0)
1312             return -EINVAL;
1313 
1314         rrq->flags = IW_POWER_TIMEOUT;
1315         rrq->value = le16_to_cpu(timeout) * 1024;
1316     } else {
1317         __le16 period;
1318         if (local->func->get_rid(dev, HFA384X_RID_CNFMAXSLEEPDURATION,
1319                      &period, 2, 1) < 0)
1320             return -EINVAL;
1321 
1322         rrq->flags = IW_POWER_PERIOD;
1323         rrq->value = le16_to_cpu(period) * 1024;
1324     }
1325 
1326     if (local->func->get_rid(dev, HFA384X_RID_CNFMULTICASTRECEIVE, &mcast,
1327                  2, 1) < 0)
1328         return -EINVAL;
1329 
1330     if (le16_to_cpu(mcast))
1331         rrq->flags |= IW_POWER_ALL_R;
1332     else
1333         rrq->flags |= IW_POWER_UNICAST_R;
1334 
1335     return 0;
1336 #endif /* PRISM2_NO_STATION_MODES */
1337 }
1338 
1339 
1340 static int prism2_ioctl_siwretry(struct net_device *dev,
1341                  struct iw_request_info *info,
1342                  struct iw_param *rrq, char *extra)
1343 {
1344     struct hostap_interface *iface;
1345     local_info_t *local;
1346 
1347     iface = netdev_priv(dev);
1348     local = iface->local;
1349 
1350     if (rrq->disabled)
1351         return -EINVAL;
1352 
1353     /* setting retry limits is not supported with the current station
1354      * firmware code; simulate this with alternative retry count for now */
1355     if (rrq->flags == IW_RETRY_LIMIT) {
1356         if (rrq->value < 0) {
1357             /* disable manual retry count setting and use firmware
1358              * defaults */
1359             local->manual_retry_count = -1;
1360             local->tx_control &= ~HFA384X_TX_CTRL_ALT_RTRY;
1361         } else {
1362             if (hostap_set_word(dev, HFA384X_RID_CNFALTRETRYCOUNT,
1363                         rrq->value)) {
1364                 printk(KERN_DEBUG "%s: Alternate retry count "
1365                        "setting to %d failed\n",
1366                        dev->name, rrq->value);
1367                 return -EOPNOTSUPP;
1368             }
1369 
1370             local->manual_retry_count = rrq->value;
1371             local->tx_control |= HFA384X_TX_CTRL_ALT_RTRY;
1372         }
1373         return 0;
1374     }
1375 
1376     return -EOPNOTSUPP;
1377 
1378 #if 0
1379     /* what could be done, if firmware would support this.. */
1380 
1381     if (rrq->flags & IW_RETRY_LIMIT) {
1382         if (rrq->flags & IW_RETRY_LONG)
1383             HFA384X_RID_LONGRETRYLIMIT = rrq->value;
1384         else if (rrq->flags & IW_RETRY_SHORT)
1385             HFA384X_RID_SHORTRETRYLIMIT = rrq->value;
1386         else {
1387             HFA384X_RID_LONGRETRYLIMIT = rrq->value;
1388             HFA384X_RID_SHORTRETRYLIMIT = rrq->value;
1389         }
1390 
1391     }
1392 
1393     if (rrq->flags & IW_RETRY_LIFETIME) {
1394         HFA384X_RID_MAXTRANSMITLIFETIME = rrq->value / 1024;
1395     }
1396 
1397     return 0;
1398 #endif /* 0 */
1399 }
1400 
1401 static int prism2_ioctl_giwretry(struct net_device *dev,
1402                  struct iw_request_info *info,
1403                  struct iw_param *rrq, char *extra)
1404 {
1405     struct hostap_interface *iface;
1406     local_info_t *local;
1407     __le16 shortretry, longretry, lifetime, altretry;
1408 
1409     iface = netdev_priv(dev);
1410     local = iface->local;
1411 
1412     if (local->func->get_rid(dev, HFA384X_RID_SHORTRETRYLIMIT, &shortretry,
1413                  2, 1) < 0 ||
1414         local->func->get_rid(dev, HFA384X_RID_LONGRETRYLIMIT, &longretry,
1415                  2, 1) < 0 ||
1416         local->func->get_rid(dev, HFA384X_RID_MAXTRANSMITLIFETIME,
1417                  &lifetime, 2, 1) < 0)
1418         return -EINVAL;
1419 
1420     rrq->disabled = 0;
1421 
1422     if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
1423         rrq->flags = IW_RETRY_LIFETIME;
1424         rrq->value = le16_to_cpu(lifetime) * 1024;
1425     } else {
1426         if (local->manual_retry_count >= 0) {
1427             rrq->flags = IW_RETRY_LIMIT;
1428             if (local->func->get_rid(dev,
1429                          HFA384X_RID_CNFALTRETRYCOUNT,
1430                          &altretry, 2, 1) >= 0)
1431                 rrq->value = le16_to_cpu(altretry);
1432             else
1433                 rrq->value = local->manual_retry_count;
1434         } else if ((rrq->flags & IW_RETRY_LONG)) {
1435             rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1436             rrq->value = le16_to_cpu(longretry);
1437         } else {
1438             rrq->flags = IW_RETRY_LIMIT;
1439             rrq->value = le16_to_cpu(shortretry);
1440             if (shortretry != longretry)
1441                 rrq->flags |= IW_RETRY_SHORT;
1442         }
1443     }
1444     return 0;
1445 }
1446 
1447 
1448 /* Note! This TX power controlling is experimental and should not be used in
1449  * production use. It just sets raw power register and does not use any kind of
1450  * feedback information from the measured TX power (CR58). This is now
1451  * commented out to make sure that it is not used by accident. TX power
1452  * configuration will be enabled again after proper algorithm using feedback
1453  * has been implemented. */
1454 
1455 #ifdef RAW_TXPOWER_SETTING
1456 /* Map HFA386x's CR31 to and from dBm with some sort of ad hoc mapping..
1457  * This version assumes following mapping:
1458  * CR31 is 7-bit value with -64 to +63 range.
1459  * -64 is mapped into +20dBm and +63 into -43dBm.
1460  * This is certainly not an exact mapping for every card, but at least
1461  * increasing dBm value should correspond to increasing TX power.
1462  */
1463 
1464 static int prism2_txpower_hfa386x_to_dBm(u16 val)
1465 {
1466     signed char tmp;
1467 
1468     if (val > 255)
1469         val = 255;
1470 
1471     tmp = val;
1472     tmp >>= 2;
1473 
1474     return -12 - tmp;
1475 }
1476 
1477 static u16 prism2_txpower_dBm_to_hfa386x(int val)
1478 {
1479     signed char tmp;
1480 
1481     if (val > 20)
1482         return 128;
1483     else if (val < -43)
1484         return 127;
1485 
1486     tmp = val;
1487     tmp = -12 - tmp;
1488     tmp <<= 2;
1489 
1490     return (unsigned char) tmp;
1491 }
1492 #endif /* RAW_TXPOWER_SETTING */
1493 
1494 
1495 static int prism2_ioctl_siwtxpow(struct net_device *dev,
1496                  struct iw_request_info *info,
1497                  struct iw_param *rrq, char *extra)
1498 {
1499     struct hostap_interface *iface;
1500     local_info_t *local;
1501 #ifdef RAW_TXPOWER_SETTING
1502     char *tmp;
1503 #endif
1504     u16 val;
1505     int ret = 0;
1506 
1507     iface = netdev_priv(dev);
1508     local = iface->local;
1509 
1510     if (rrq->disabled) {
1511         if (local->txpower_type != PRISM2_TXPOWER_OFF) {
1512             val = 0xff; /* use all standby and sleep modes */
1513             ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
1514                            HFA386X_CR_A_D_TEST_MODES2,
1515                            &val, NULL);
1516             printk(KERN_DEBUG "%s: Turning radio off: %s\n",
1517                    dev->name, ret ? "failed" : "OK");
1518             local->txpower_type = PRISM2_TXPOWER_OFF;
1519         }
1520         return (ret ? -EOPNOTSUPP : 0);
1521     }
1522 
1523     if (local->txpower_type == PRISM2_TXPOWER_OFF) {
1524         val = 0; /* disable all standby and sleep modes */
1525         ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
1526                        HFA386X_CR_A_D_TEST_MODES2, &val, NULL);
1527         printk(KERN_DEBUG "%s: Turning radio on: %s\n",
1528                dev->name, ret ? "failed" : "OK");
1529         local->txpower_type = PRISM2_TXPOWER_UNKNOWN;
1530     }
1531 
1532 #ifdef RAW_TXPOWER_SETTING
1533     if (!rrq->fixed && local->txpower_type != PRISM2_TXPOWER_AUTO) {
1534         printk(KERN_DEBUG "Setting ALC on\n");
1535         val = HFA384X_TEST_CFG_BIT_ALC;
1536         local->func->cmd(dev, HFA384X_CMDCODE_TEST |
1537                  (HFA384X_TEST_CFG_BITS << 8), 1, &val, NULL);
1538         local->txpower_type = PRISM2_TXPOWER_AUTO;
1539         return 0;
1540     }
1541 
1542     if (local->txpower_type != PRISM2_TXPOWER_FIXED) {
1543         printk(KERN_DEBUG "Setting ALC off\n");
1544         val = HFA384X_TEST_CFG_BIT_ALC;
1545         local->func->cmd(dev, HFA384X_CMDCODE_TEST |
1546                  (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL);
1547             local->txpower_type = PRISM2_TXPOWER_FIXED;
1548     }
1549 
1550     if (rrq->flags == IW_TXPOW_DBM)
1551         tmp = "dBm";
1552     else if (rrq->flags == IW_TXPOW_MWATT)
1553         tmp = "mW";
1554     else
1555         tmp = "UNKNOWN";
1556     printk(KERN_DEBUG "Setting TX power to %d %s\n", rrq->value, tmp);
1557 
1558     if (rrq->flags != IW_TXPOW_DBM) {
1559         printk("SIOCSIWTXPOW with mW is not supported; use dBm\n");
1560         return -EOPNOTSUPP;
1561     }
1562 
1563     local->txpower = rrq->value;
1564     val = prism2_txpower_dBm_to_hfa386x(local->txpower);
1565     if (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
1566                  HFA386X_CR_MANUAL_TX_POWER, &val, NULL))
1567         ret = -EOPNOTSUPP;
1568 #else /* RAW_TXPOWER_SETTING */
1569     if (rrq->fixed)
1570         ret = -EOPNOTSUPP;
1571 #endif /* RAW_TXPOWER_SETTING */
1572 
1573     return ret;
1574 }
1575 
1576 static int prism2_ioctl_giwtxpow(struct net_device *dev,
1577                  struct iw_request_info *info,
1578                  struct iw_param *rrq, char *extra)
1579 {
1580 #ifdef RAW_TXPOWER_SETTING
1581     struct hostap_interface *iface;
1582     local_info_t *local;
1583     u16 resp0;
1584 
1585     iface = netdev_priv(dev);
1586     local = iface->local;
1587 
1588     rrq->flags = IW_TXPOW_DBM;
1589     rrq->disabled = 0;
1590     rrq->fixed = 0;
1591 
1592     if (local->txpower_type == PRISM2_TXPOWER_AUTO) {
1593         if (local->func->cmd(dev, HFA384X_CMDCODE_READMIF,
1594                      HFA386X_CR_MANUAL_TX_POWER,
1595                      NULL, &resp0) == 0) {
1596             rrq->value = prism2_txpower_hfa386x_to_dBm(resp0);
1597         } else {
1598             /* Could not get real txpower; guess 15 dBm */
1599             rrq->value = 15;
1600         }
1601     } else if (local->txpower_type == PRISM2_TXPOWER_OFF) {
1602         rrq->value = 0;
1603         rrq->disabled = 1;
1604     } else if (local->txpower_type == PRISM2_TXPOWER_FIXED) {
1605         rrq->value = local->txpower;
1606         rrq->fixed = 1;
1607     } else {
1608         printk("SIOCGIWTXPOW - unknown txpower_type=%d\n",
1609                local->txpower_type);
1610     }
1611     return 0;
1612 #else /* RAW_TXPOWER_SETTING */
1613     return -EOPNOTSUPP;
1614 #endif /* RAW_TXPOWER_SETTING */
1615 }
1616 
1617 
1618 #ifndef PRISM2_NO_STATION_MODES
1619 
1620 /* HostScan request works with and without host_roaming mode. In addition, it
1621  * does not break current association. However, it requires newer station
1622  * firmware version (>= 1.3.1) than scan request. */
1623 static int prism2_request_hostscan(struct net_device *dev,
1624                    u8 *ssid, u8 ssid_len)
1625 {
1626     struct hostap_interface *iface;
1627     local_info_t *local;
1628     struct hfa384x_hostscan_request scan_req;
1629 
1630     iface = netdev_priv(dev);
1631     local = iface->local;
1632 
1633     memset(&scan_req, 0, sizeof(scan_req));
1634     scan_req.channel_list = cpu_to_le16(local->channel_mask &
1635                         local->scan_channel_mask);
1636     scan_req.txrate = cpu_to_le16(HFA384X_RATES_1MBPS);
1637     if (ssid) {
1638         if (ssid_len > 32)
1639             return -EINVAL;
1640         scan_req.target_ssid_len = cpu_to_le16(ssid_len);
1641         memcpy(scan_req.target_ssid, ssid, ssid_len);
1642     }
1643 
1644     if (local->func->set_rid(dev, HFA384X_RID_HOSTSCAN, &scan_req,
1645                  sizeof(scan_req))) {
1646         printk(KERN_DEBUG "%s: HOSTSCAN failed\n", dev->name);
1647         return -EINVAL;
1648     }
1649     return 0;
1650 }
1651 
1652 
1653 static int prism2_request_scan(struct net_device *dev)
1654 {
1655     struct hostap_interface *iface;
1656     local_info_t *local;
1657     struct hfa384x_scan_request scan_req;
1658     int ret = 0;
1659 
1660     iface = netdev_priv(dev);
1661     local = iface->local;
1662 
1663     memset(&scan_req, 0, sizeof(scan_req));
1664     scan_req.channel_list = cpu_to_le16(local->channel_mask &
1665                         local->scan_channel_mask);
1666     scan_req.txrate = cpu_to_le16(HFA384X_RATES_1MBPS);
1667 
1668     /* FIX:
1669      * It seems to be enough to set roaming mode for a short moment to
1670      * host-based and then setup scanrequest data and return the mode to
1671      * firmware-based.
1672      *
1673      * Master mode would need to drop to Managed mode for a short while
1674      * to make scanning work.. Or sweep through the different channels and
1675      * use passive scan based on beacons. */
1676 
1677     if (!local->host_roaming)
1678         hostap_set_word(dev, HFA384X_RID_CNFROAMINGMODE,
1679                 HFA384X_ROAMING_HOST);
1680 
1681     if (local->func->set_rid(dev, HFA384X_RID_SCANREQUEST, &scan_req,
1682                  sizeof(scan_req))) {
1683         printk(KERN_DEBUG "SCANREQUEST failed\n");
1684         ret = -EINVAL;
1685     }
1686 
1687     if (!local->host_roaming)
1688         hostap_set_word(dev, HFA384X_RID_CNFROAMINGMODE,
1689                 HFA384X_ROAMING_FIRMWARE);
1690 
1691     return ret;
1692 }
1693 
1694 #else /* !PRISM2_NO_STATION_MODES */
1695 
1696 static inline int prism2_request_hostscan(struct net_device *dev,
1697                       u8 *ssid, u8 ssid_len)
1698 {
1699     return -EOPNOTSUPP;
1700 }
1701 
1702 
1703 static inline int prism2_request_scan(struct net_device *dev)
1704 {
1705     return -EOPNOTSUPP;
1706 }
1707 
1708 #endif /* !PRISM2_NO_STATION_MODES */
1709 
1710 
1711 static int prism2_ioctl_siwscan(struct net_device *dev,
1712                 struct iw_request_info *info,
1713                 struct iw_point *data, char *extra)
1714 {
1715     struct hostap_interface *iface;
1716     local_info_t *local;
1717     int ret;
1718     u8 *ssid = NULL, ssid_len = 0;
1719     struct iw_scan_req *req = (struct iw_scan_req *) extra;
1720 
1721     iface = netdev_priv(dev);
1722     local = iface->local;
1723 
1724     if (data->length < sizeof(struct iw_scan_req))
1725         req = NULL;
1726 
1727     if (local->iw_mode == IW_MODE_MASTER) {
1728         /* In master mode, we just return the results of our local
1729          * tables, so we don't need to start anything...
1730          * Jean II */
1731         data->length = 0;
1732         return 0;
1733     }
1734 
1735     if (!local->dev_enabled)
1736         return -ENETDOWN;
1737 
1738     if (req && data->flags & IW_SCAN_THIS_ESSID) {
1739         ssid = req->essid;
1740         ssid_len = req->essid_len;
1741 
1742         if (ssid_len &&
1743             ((local->iw_mode != IW_MODE_INFRA &&
1744               local->iw_mode != IW_MODE_ADHOC) ||
1745              (local->sta_fw_ver < PRISM2_FW_VER(1,3,1))))
1746             return -EOPNOTSUPP;
1747     }
1748 
1749     if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1))
1750         ret = prism2_request_hostscan(dev, ssid, ssid_len);
1751     else
1752         ret = prism2_request_scan(dev);
1753 
1754     if (ret == 0)
1755         local->scan_timestamp = jiffies;
1756 
1757     /* Could inquire F101, F103 or wait for SIOCGIWSCAN and read RID */
1758 
1759     return ret;
1760 }
1761 
1762 
1763 #ifndef PRISM2_NO_STATION_MODES
1764 static char * __prism2_translate_scan(local_info_t *local,
1765                       struct iw_request_info *info,
1766                       struct hfa384x_hostscan_result *scan,
1767                       struct hostap_bss_info *bss,
1768                       char *current_ev, char *end_buf)
1769 {
1770     int i, chan;
1771     struct iw_event iwe;
1772     char *current_val;
1773     u16 capabilities;
1774     u8 *pos;
1775     u8 *ssid, *bssid;
1776     size_t ssid_len;
1777     char *buf;
1778 
1779     if (bss) {
1780         ssid = bss->ssid;
1781         ssid_len = bss->ssid_len;
1782         bssid = bss->bssid;
1783     } else {
1784         ssid = scan->ssid;
1785         ssid_len = le16_to_cpu(scan->ssid_len);
1786         bssid = scan->bssid;
1787     }
1788     if (ssid_len > 32)
1789         ssid_len = 32;
1790 
1791     /* First entry *MUST* be the AP MAC address */
1792     memset(&iwe, 0, sizeof(iwe));
1793     iwe.cmd = SIOCGIWAP;
1794     iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1795     memcpy(iwe.u.ap_addr.sa_data, bssid, ETH_ALEN);
1796     current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
1797                       IW_EV_ADDR_LEN);
1798 
1799     /* Other entries will be displayed in the order we give them */
1800 
1801     memset(&iwe, 0, sizeof(iwe));
1802     iwe.cmd = SIOCGIWESSID;
1803     iwe.u.data.length = ssid_len;
1804     iwe.u.data.flags = 1;
1805     current_ev = iwe_stream_add_point(info, current_ev, end_buf,
1806                       &iwe, ssid);
1807 
1808     memset(&iwe, 0, sizeof(iwe));
1809     iwe.cmd = SIOCGIWMODE;
1810     if (bss) {
1811         capabilities = bss->capab_info;
1812     } else {
1813         capabilities = le16_to_cpu(scan->capability);
1814     }
1815     if (capabilities & (WLAN_CAPABILITY_ESS |
1816                 WLAN_CAPABILITY_IBSS)) {
1817         if (capabilities & WLAN_CAPABILITY_ESS)
1818             iwe.u.mode = IW_MODE_MASTER;
1819         else
1820             iwe.u.mode = IW_MODE_ADHOC;
1821         current_ev = iwe_stream_add_event(info, current_ev, end_buf,
1822                           &iwe, IW_EV_UINT_LEN);
1823     }
1824 
1825     memset(&iwe, 0, sizeof(iwe));
1826     iwe.cmd = SIOCGIWFREQ;
1827     if (scan) {
1828         chan = le16_to_cpu(scan->chid);
1829     } else if (bss) {
1830         chan = bss->chan;
1831     } else {
1832         chan = 0;
1833     }
1834 
1835     if (chan > 0) {
1836         iwe.u.freq.m = freq_list[chan - 1] * 100000;
1837         iwe.u.freq.e = 1;
1838         current_ev = iwe_stream_add_event(info, current_ev, end_buf,
1839                           &iwe, IW_EV_FREQ_LEN);
1840     }
1841 
1842     if (scan) {
1843         memset(&iwe, 0, sizeof(iwe));
1844         iwe.cmd = IWEVQUAL;
1845         if (local->last_scan_type == PRISM2_HOSTSCAN) {
1846             iwe.u.qual.level = le16_to_cpu(scan->sl);
1847             iwe.u.qual.noise = le16_to_cpu(scan->anl);
1848         } else {
1849             iwe.u.qual.level =
1850                 HFA384X_LEVEL_TO_dBm(le16_to_cpu(scan->sl));
1851             iwe.u.qual.noise =
1852                 HFA384X_LEVEL_TO_dBm(le16_to_cpu(scan->anl));
1853         }
1854         iwe.u.qual.updated = IW_QUAL_LEVEL_UPDATED
1855             | IW_QUAL_NOISE_UPDATED
1856             | IW_QUAL_QUAL_INVALID
1857             | IW_QUAL_DBM;
1858         current_ev = iwe_stream_add_event(info, current_ev, end_buf,
1859                           &iwe, IW_EV_QUAL_LEN);
1860     }
1861 
1862     memset(&iwe, 0, sizeof(iwe));
1863     iwe.cmd = SIOCGIWENCODE;
1864     if (capabilities & WLAN_CAPABILITY_PRIVACY)
1865         iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1866     else
1867         iwe.u.data.flags = IW_ENCODE_DISABLED;
1868     iwe.u.data.length = 0;
1869     current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, "");
1870 
1871     /* TODO: add SuppRates into BSS table */
1872     if (scan) {
1873         memset(&iwe, 0, sizeof(iwe));
1874         iwe.cmd = SIOCGIWRATE;
1875         current_val = current_ev + iwe_stream_lcp_len(info);
1876         pos = scan->sup_rates;
1877         for (i = 0; i < sizeof(scan->sup_rates); i++) {
1878             if (pos[i] == 0)
1879                 break;
1880             /* Bit rate given in 500 kb/s units (+ 0x80) */
1881             iwe.u.bitrate.value = ((pos[i] & 0x7f) * 500000);
1882             current_val = iwe_stream_add_value(
1883                 info, current_ev, current_val, end_buf, &iwe,
1884                 IW_EV_PARAM_LEN);
1885         }
1886         /* Check if we added any event */
1887         if ((current_val - current_ev) > iwe_stream_lcp_len(info))
1888             current_ev = current_val;
1889     }
1890 
1891     /* TODO: add BeaconInt,resp_rate,atim into BSS table */
1892     buf = kmalloc(MAX_WPA_IE_LEN * 2 + 30, GFP_ATOMIC);
1893     if (buf && scan) {
1894         memset(&iwe, 0, sizeof(iwe));
1895         iwe.cmd = IWEVCUSTOM;
1896         sprintf(buf, "bcn_int=%d", le16_to_cpu(scan->beacon_interval));
1897         iwe.u.data.length = strlen(buf);
1898         current_ev = iwe_stream_add_point(info, current_ev, end_buf,
1899                           &iwe, buf);
1900 
1901         memset(&iwe, 0, sizeof(iwe));
1902         iwe.cmd = IWEVCUSTOM;
1903         sprintf(buf, "resp_rate=%d", le16_to_cpu(scan->rate));
1904         iwe.u.data.length = strlen(buf);
1905         current_ev = iwe_stream_add_point(info, current_ev, end_buf,
1906                           &iwe, buf);
1907 
1908         if (local->last_scan_type == PRISM2_HOSTSCAN &&
1909             (capabilities & WLAN_CAPABILITY_IBSS)) {
1910             memset(&iwe, 0, sizeof(iwe));
1911             iwe.cmd = IWEVCUSTOM;
1912             sprintf(buf, "atim=%d", le16_to_cpu(scan->atim));
1913             iwe.u.data.length = strlen(buf);
1914             current_ev = iwe_stream_add_point(info, current_ev,
1915                               end_buf, &iwe, buf);
1916         }
1917     }
1918     kfree(buf);
1919 
1920     if (bss && bss->wpa_ie_len > 0 && bss->wpa_ie_len <= MAX_WPA_IE_LEN) {
1921         memset(&iwe, 0, sizeof(iwe));
1922         iwe.cmd = IWEVGENIE;
1923         iwe.u.data.length = bss->wpa_ie_len;
1924         current_ev = iwe_stream_add_point(info, current_ev, end_buf,
1925                           &iwe, bss->wpa_ie);
1926     }
1927 
1928     if (bss && bss->rsn_ie_len > 0 && bss->rsn_ie_len <= MAX_WPA_IE_LEN) {
1929         memset(&iwe, 0, sizeof(iwe));
1930         iwe.cmd = IWEVGENIE;
1931         iwe.u.data.length = bss->rsn_ie_len;
1932         current_ev = iwe_stream_add_point(info, current_ev, end_buf,
1933                           &iwe, bss->rsn_ie);
1934     }
1935 
1936     return current_ev;
1937 }
1938 
1939 
1940 /* Translate scan data returned from the card to a card independent
1941  * format that the Wireless Tools will understand - Jean II */
1942 static inline int prism2_translate_scan(local_info_t *local,
1943                     struct iw_request_info *info,
1944                     char *buffer, int buflen)
1945 {
1946     struct hfa384x_hostscan_result *scan;
1947     int entry;
1948     char *current_ev = buffer;
1949     char *end_buf = buffer + buflen;
1950     struct list_head *ptr;
1951 
1952     spin_lock_bh(&local->lock);
1953 
1954     list_for_each(ptr, &local->bss_list) {
1955         struct hostap_bss_info *bss;
1956         bss = list_entry(ptr, struct hostap_bss_info, list);
1957         bss->included = 0;
1958     }
1959 
1960     for (entry = 0; entry < local->last_scan_results_count; entry++) {
1961         int found = 0;
1962         scan = &local->last_scan_results[entry];
1963 
1964         /* Report every SSID if the AP is using multiple SSIDs. If no
1965          * BSS record is found (e.g., when WPA mode is disabled),
1966          * report the AP once. */
1967         list_for_each(ptr, &local->bss_list) {
1968             struct hostap_bss_info *bss;
1969             bss = list_entry(ptr, struct hostap_bss_info, list);
1970             if (ether_addr_equal(bss->bssid, scan->bssid)) {
1971                 bss->included = 1;
1972                 current_ev = __prism2_translate_scan(
1973                     local, info, scan, bss, current_ev,
1974                     end_buf);
1975                 found++;
1976             }
1977         }
1978         if (!found) {
1979             current_ev = __prism2_translate_scan(
1980                 local, info, scan, NULL, current_ev, end_buf);
1981         }
1982         /* Check if there is space for one more entry */
1983         if ((end_buf - current_ev) <= IW_EV_ADDR_LEN) {
1984             /* Ask user space to try again with a bigger buffer */
1985             spin_unlock_bh(&local->lock);
1986             return -E2BIG;
1987         }
1988     }
1989 
1990     /* Prism2 firmware has limits (32 at least in some versions) for number
1991      * of BSSes in scan results. Extend this limit by using local BSS list.
1992      */
1993     list_for_each(ptr, &local->bss_list) {
1994         struct hostap_bss_info *bss;
1995         bss = list_entry(ptr, struct hostap_bss_info, list);
1996         if (bss->included)
1997             continue;
1998         current_ev = __prism2_translate_scan(local, info, NULL, bss,
1999                              current_ev, end_buf);
2000         /* Check if there is space for one more entry */
2001         if ((end_buf - current_ev) <= IW_EV_ADDR_LEN) {
2002             /* Ask user space to try again with a bigger buffer */
2003             spin_unlock_bh(&local->lock);
2004             return -E2BIG;
2005         }
2006     }
2007 
2008     spin_unlock_bh(&local->lock);
2009 
2010     return current_ev - buffer;
2011 }
2012 #endif /* PRISM2_NO_STATION_MODES */
2013 
2014 
2015 static inline int prism2_ioctl_giwscan_sta(struct net_device *dev,
2016                        struct iw_request_info *info,
2017                        struct iw_point *data, char *extra)
2018 {
2019 #ifdef PRISM2_NO_STATION_MODES
2020     return -EOPNOTSUPP;
2021 #else /* PRISM2_NO_STATION_MODES */
2022     struct hostap_interface *iface;
2023     local_info_t *local;
2024     int res;
2025 
2026     iface = netdev_priv(dev);
2027     local = iface->local;
2028 
2029     /* Wait until the scan is finished. We can probably do better
2030      * than that - Jean II */
2031     if (local->scan_timestamp &&
2032         time_before(jiffies, local->scan_timestamp + 3 * HZ)) {
2033         /* Important note : we don't want to block the caller
2034          * until results are ready for various reasons.
2035          * First, managing wait queues is complex and racy
2036          * (there may be multiple simultaneous callers).
2037          * Second, we grab some rtnetlink lock before coming
2038          * here (in dev_ioctl()).
2039          * Third, the caller can wait on the Wireless Event
2040          * - Jean II */
2041         return -EAGAIN;
2042     }
2043     local->scan_timestamp = 0;
2044 
2045     res = prism2_translate_scan(local, info, extra, data->length);
2046 
2047     if (res >= 0) {
2048         data->length = res;
2049         return 0;
2050     } else {
2051         data->length = 0;
2052         return res;
2053     }
2054 #endif /* PRISM2_NO_STATION_MODES */
2055 }
2056 
2057 
2058 static int prism2_ioctl_giwscan(struct net_device *dev,
2059                 struct iw_request_info *info,
2060                 struct iw_point *data, char *extra)
2061 {
2062     struct hostap_interface *iface;
2063     local_info_t *local;
2064     int res;
2065 
2066     iface = netdev_priv(dev);
2067     local = iface->local;
2068 
2069     if (local->iw_mode == IW_MODE_MASTER) {
2070         /* In MASTER mode, it doesn't make sense to go around
2071          * scanning the frequencies and make the stations we serve
2072          * wait when what the user is really interested about is the
2073          * list of stations and access points we are talking to.
2074          * So, just extract results from our cache...
2075          * Jean II */
2076 
2077         /* Translate to WE format */
2078         res = prism2_ap_translate_scan(dev, info, extra);
2079         if (res >= 0) {
2080             printk(KERN_DEBUG "Scan result translation succeeded "
2081                    "(length=%d)\n", res);
2082             data->length = res;
2083             return 0;
2084         } else {
2085             printk(KERN_DEBUG
2086                    "Scan result translation failed (res=%d)\n",
2087                    res);
2088             data->length = 0;
2089             return res;
2090         }
2091     } else {
2092         /* Station mode */
2093         return prism2_ioctl_giwscan_sta(dev, info, data, extra);
2094     }
2095 }
2096 
2097 
2098 static const struct iw_priv_args prism2_priv[] = {
2099     { PRISM2_IOCTL_MONITOR,
2100       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "monitor" },
2101     { PRISM2_IOCTL_READMIF,
2102       IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
2103       IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "readmif" },
2104     { PRISM2_IOCTL_WRITEMIF,
2105       IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 2, 0, "writemif" },
2106     { PRISM2_IOCTL_RESET,
2107       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "reset" },
2108     { PRISM2_IOCTL_INQUIRE,
2109       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "inquire" },
2110     { PRISM2_IOCTL_SET_RID_WORD,
2111       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_rid_word" },
2112     { PRISM2_IOCTL_MACCMD,
2113       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "maccmd" },
2114     { PRISM2_IOCTL_WDS_ADD,
2115       IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "wds_add" },
2116     { PRISM2_IOCTL_WDS_DEL,
2117       IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "wds_del" },
2118     { PRISM2_IOCTL_ADDMAC,
2119       IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "addmac" },
2120     { PRISM2_IOCTL_DELMAC,
2121       IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "delmac" },
2122     { PRISM2_IOCTL_KICKMAC,
2123       IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "kickmac" },
2124     /* --- raw access to sub-ioctls --- */
2125     { PRISM2_IOCTL_PRISM2_PARAM,
2126       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "prism2_param" },
2127     { PRISM2_IOCTL_GET_PRISM2_PARAM,
2128       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
2129       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getprism2_param" },
2130     /* --- sub-ioctls handlers --- */
2131     { PRISM2_IOCTL_PRISM2_PARAM,
2132       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "" },
2133     { PRISM2_IOCTL_GET_PRISM2_PARAM,
2134       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "" },
2135     /* --- sub-ioctls definitions --- */
2136     { PRISM2_PARAM_TXRATECTRL,
2137       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "txratectrl" },
2138     { PRISM2_PARAM_TXRATECTRL,
2139       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gettxratectrl" },
2140     { PRISM2_PARAM_BEACON_INT,
2141       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "beacon_int" },
2142     { PRISM2_PARAM_BEACON_INT,
2143       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbeacon_int" },
2144 #ifndef PRISM2_NO_STATION_MODES
2145     { PRISM2_PARAM_PSEUDO_IBSS,
2146       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "pseudo_ibss" },
2147     { PRISM2_PARAM_PSEUDO_IBSS,
2148       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getpseudo_ibss" },
2149 #endif /* PRISM2_NO_STATION_MODES */
2150     { PRISM2_PARAM_ALC,
2151       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "alc" },
2152     { PRISM2_PARAM_ALC,
2153       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getalc" },
2154     { PRISM2_PARAM_DUMP,
2155       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "dump" },
2156     { PRISM2_PARAM_DUMP,
2157       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdump" },
2158     { PRISM2_PARAM_OTHER_AP_POLICY,
2159       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "other_ap_policy" },
2160     { PRISM2_PARAM_OTHER_AP_POLICY,
2161       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getother_ap_pol" },
2162     { PRISM2_PARAM_AP_MAX_INACTIVITY,
2163       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "max_inactivity" },
2164     { PRISM2_PARAM_AP_MAX_INACTIVITY,
2165       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmax_inactivi" },
2166     { PRISM2_PARAM_AP_BRIDGE_PACKETS,
2167       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bridge_packets" },
2168     { PRISM2_PARAM_AP_BRIDGE_PACKETS,
2169       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbridge_packe" },
2170     { PRISM2_PARAM_DTIM_PERIOD,
2171       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "dtim_period" },
2172     { PRISM2_PARAM_DTIM_PERIOD,
2173       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdtim_period" },
2174     { PRISM2_PARAM_AP_NULLFUNC_ACK,
2175       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "nullfunc_ack" },
2176     { PRISM2_PARAM_AP_NULLFUNC_ACK,
2177       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getnullfunc_ack" },
2178     { PRISM2_PARAM_MAX_WDS,
2179       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "max_wds" },
2180     { PRISM2_PARAM_MAX_WDS,
2181       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmax_wds" },
2182     { PRISM2_PARAM_AP_AUTOM_AP_WDS,
2183       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "autom_ap_wds" },
2184     { PRISM2_PARAM_AP_AUTOM_AP_WDS,
2185       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getautom_ap_wds" },
2186     { PRISM2_PARAM_AP_AUTH_ALGS,
2187       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ap_auth_algs" },
2188     { PRISM2_PARAM_AP_AUTH_ALGS,
2189       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getap_auth_algs" },
2190     { PRISM2_PARAM_MONITOR_ALLOW_FCSERR,
2191       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "allow_fcserr" },
2192     { PRISM2_PARAM_MONITOR_ALLOW_FCSERR,
2193       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getallow_fcserr" },
2194     { PRISM2_PARAM_HOST_ENCRYPT,
2195       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_encrypt" },
2196     { PRISM2_PARAM_HOST_ENCRYPT,
2197       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_encrypt" },
2198     { PRISM2_PARAM_HOST_DECRYPT,
2199       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_decrypt" },
2200     { PRISM2_PARAM_HOST_DECRYPT,
2201       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_decrypt" },
2202 #ifndef PRISM2_NO_STATION_MODES
2203     { PRISM2_PARAM_HOST_ROAMING,
2204       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_roaming" },
2205     { PRISM2_PARAM_HOST_ROAMING,
2206       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_roaming" },
2207 #endif /* PRISM2_NO_STATION_MODES */
2208     { PRISM2_PARAM_BCRX_STA_KEY,
2209       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bcrx_sta_key" },
2210     { PRISM2_PARAM_BCRX_STA_KEY,
2211       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbcrx_sta_key" },
2212     { PRISM2_PARAM_IEEE_802_1X,
2213       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ieee_802_1x" },
2214     { PRISM2_PARAM_IEEE_802_1X,
2215       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getieee_802_1x" },
2216     { PRISM2_PARAM_ANTSEL_TX,
2217       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "antsel_tx" },
2218     { PRISM2_PARAM_ANTSEL_TX,
2219       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getantsel_tx" },
2220     { PRISM2_PARAM_ANTSEL_RX,
2221       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "antsel_rx" },
2222     { PRISM2_PARAM_ANTSEL_RX,
2223       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getantsel_rx" },
2224     { PRISM2_PARAM_MONITOR_TYPE,
2225       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "monitor_type" },
2226     { PRISM2_PARAM_MONITOR_TYPE,
2227       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmonitor_type" },
2228     { PRISM2_PARAM_WDS_TYPE,
2229       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wds_type" },
2230     { PRISM2_PARAM_WDS_TYPE,
2231       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getwds_type" },
2232     { PRISM2_PARAM_HOSTSCAN,
2233       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostscan" },
2234     { PRISM2_PARAM_HOSTSCAN,
2235       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostscan" },
2236     { PRISM2_PARAM_AP_SCAN,
2237       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ap_scan" },
2238     { PRISM2_PARAM_AP_SCAN,
2239       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getap_scan" },
2240     { PRISM2_PARAM_ENH_SEC,
2241       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "enh_sec" },
2242     { PRISM2_PARAM_ENH_SEC,
2243       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getenh_sec" },
2244 #ifdef PRISM2_IO_DEBUG
2245     { PRISM2_PARAM_IO_DEBUG,
2246       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "io_debug" },
2247     { PRISM2_PARAM_IO_DEBUG,
2248       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getio_debug" },
2249 #endif /* PRISM2_IO_DEBUG */
2250     { PRISM2_PARAM_BASIC_RATES,
2251       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "basic_rates" },
2252     { PRISM2_PARAM_BASIC_RATES,
2253       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbasic_rates" },
2254     { PRISM2_PARAM_OPER_RATES,
2255       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "oper_rates" },
2256     { PRISM2_PARAM_OPER_RATES,
2257       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getoper_rates" },
2258     { PRISM2_PARAM_HOSTAPD,
2259       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostapd" },
2260     { PRISM2_PARAM_HOSTAPD,
2261       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostapd" },
2262     { PRISM2_PARAM_HOSTAPD_STA,
2263       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostapd_sta" },
2264     { PRISM2_PARAM_HOSTAPD_STA,
2265       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostapd_sta" },
2266     { PRISM2_PARAM_WPA,
2267       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wpa" },
2268     { PRISM2_PARAM_WPA,
2269       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getwpa" },
2270     { PRISM2_PARAM_PRIVACY_INVOKED,
2271       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "privacy_invoked" },
2272     { PRISM2_PARAM_PRIVACY_INVOKED,
2273       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getprivacy_invo" },
2274     { PRISM2_PARAM_TKIP_COUNTERMEASURES,
2275       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "tkip_countermea" },
2276     { PRISM2_PARAM_TKIP_COUNTERMEASURES,
2277       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gettkip_counter" },
2278     { PRISM2_PARAM_DROP_UNENCRYPTED,
2279       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "drop_unencrypte" },
2280     { PRISM2_PARAM_DROP_UNENCRYPTED,
2281       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdrop_unencry" },
2282     { PRISM2_PARAM_SCAN_CHANNEL_MASK,
2283       IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "scan_channels" },
2284     { PRISM2_PARAM_SCAN_CHANNEL_MASK,
2285       0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getscan_channel" },
2286 };
2287 
2288 
2289 static int prism2_ioctl_priv_inquire(struct net_device *dev, int *i)
2290 {
2291     struct hostap_interface *iface;
2292     local_info_t *local;
2293 
2294     iface = netdev_priv(dev);
2295     local = iface->local;
2296 
2297     if (local->func->cmd(dev, HFA384X_CMDCODE_INQUIRE, *i, NULL, NULL))
2298         return -EOPNOTSUPP;
2299 
2300     return 0;
2301 }
2302 
2303 
2304 static int prism2_ioctl_priv_prism2_param(struct net_device *dev,
2305                       struct iw_request_info *info,
2306                       void *wrqu, char *extra)
2307 {
2308     struct hostap_interface *iface;
2309     local_info_t *local;
2310     int *i = (int *) extra;
2311     int param = *i;
2312     int value = *(i + 1);
2313     int ret = 0;
2314     u16 val;
2315 
2316     iface = netdev_priv(dev);
2317     local = iface->local;
2318 
2319     switch (param) {
2320     case PRISM2_PARAM_TXRATECTRL:
2321         local->fw_tx_rate_control = value;
2322         break;
2323 
2324     case PRISM2_PARAM_BEACON_INT:
2325         if (hostap_set_word(dev, HFA384X_RID_CNFBEACONINT, value) ||
2326             local->func->reset_port(dev))
2327             ret = -EINVAL;
2328         else
2329             local->beacon_int = value;
2330         break;
2331 
2332 #ifndef PRISM2_NO_STATION_MODES
2333     case PRISM2_PARAM_PSEUDO_IBSS:
2334         if (value == local->pseudo_adhoc)
2335             break;
2336 
2337         if (value != 0 && value != 1) {
2338             ret = -EINVAL;
2339             break;
2340         }
2341 
2342         printk(KERN_DEBUG "prism2: %s: pseudo IBSS change %d -> %d\n",
2343                dev->name, local->pseudo_adhoc, value);
2344         local->pseudo_adhoc = value;
2345         if (local->iw_mode != IW_MODE_ADHOC)
2346             break;
2347 
2348         if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
2349                     hostap_get_porttype(local))) {
2350             ret = -EOPNOTSUPP;
2351             break;
2352         }
2353 
2354         if (local->func->reset_port(dev))
2355             ret = -EINVAL;
2356         break;
2357 #endif /* PRISM2_NO_STATION_MODES */
2358 
2359     case PRISM2_PARAM_ALC:
2360         printk(KERN_DEBUG "%s: %s ALC\n", dev->name,
2361                value == 0 ? "Disabling" : "Enabling");
2362         val = HFA384X_TEST_CFG_BIT_ALC;
2363         local->func->cmd(dev, HFA384X_CMDCODE_TEST |
2364                  (HFA384X_TEST_CFG_BITS << 8),
2365                  value == 0 ? 0 : 1, &val, NULL);
2366         break;
2367 
2368     case PRISM2_PARAM_DUMP:
2369         local->frame_dump = value;
2370         break;
2371 
2372     case PRISM2_PARAM_OTHER_AP_POLICY:
2373         if (value < 0 || value > 3) {
2374             ret = -EINVAL;
2375             break;
2376         }
2377         if (local->ap != NULL)
2378             local->ap->ap_policy = value;
2379         break;
2380 
2381     case PRISM2_PARAM_AP_MAX_INACTIVITY:
2382         if (value < 0 || value > 7 * 24 * 60 * 60) {
2383             ret = -EINVAL;
2384             break;
2385         }
2386         if (local->ap != NULL)
2387             local->ap->max_inactivity = value * HZ;
2388         break;
2389 
2390     case PRISM2_PARAM_AP_BRIDGE_PACKETS:
2391         if (local->ap != NULL)
2392             local->ap->bridge_packets = value;
2393         break;
2394 
2395     case PRISM2_PARAM_DTIM_PERIOD:
2396         if (value < 0 || value > 65535) {
2397             ret = -EINVAL;
2398             break;
2399         }
2400         if (hostap_set_word(dev, HFA384X_RID_CNFOWNDTIMPERIOD, value)
2401             || local->func->reset_port(dev))
2402             ret = -EINVAL;
2403         else
2404             local->dtim_period = value;
2405         break;
2406 
2407     case PRISM2_PARAM_AP_NULLFUNC_ACK:
2408         if (local->ap != NULL)
2409             local->ap->nullfunc_ack = value;
2410         break;
2411 
2412     case PRISM2_PARAM_MAX_WDS:
2413         local->wds_max_connections = value;
2414         break;
2415 
2416     case PRISM2_PARAM_AP_AUTOM_AP_WDS:
2417         if (local->ap != NULL) {
2418             if (!local->ap->autom_ap_wds && value) {
2419                 /* add WDS link to all APs in STA table */
2420                 hostap_add_wds_links(local);
2421             }
2422             local->ap->autom_ap_wds = value;
2423         }
2424         break;
2425 
2426     case PRISM2_PARAM_AP_AUTH_ALGS:
2427         local->auth_algs = value;
2428         if (hostap_set_auth_algs(local))
2429             ret = -EINVAL;
2430         break;
2431 
2432     case PRISM2_PARAM_MONITOR_ALLOW_FCSERR:
2433         local->monitor_allow_fcserr = value;
2434         break;
2435 
2436     case PRISM2_PARAM_HOST_ENCRYPT:
2437         local->host_encrypt = value;
2438         if (hostap_set_encryption(local) ||
2439             local->func->reset_port(dev))
2440             ret = -EINVAL;
2441         break;
2442 
2443     case PRISM2_PARAM_HOST_DECRYPT:
2444         local->host_decrypt = value;
2445         if (hostap_set_encryption(local) ||
2446             local->func->reset_port(dev))
2447             ret = -EINVAL;
2448         break;
2449 
2450 #ifndef PRISM2_NO_STATION_MODES
2451     case PRISM2_PARAM_HOST_ROAMING:
2452         if (value < 0 || value > 2) {
2453             ret = -EINVAL;
2454             break;
2455         }
2456         local->host_roaming = value;
2457         if (hostap_set_roaming(local) || local->func->reset_port(dev))
2458             ret = -EINVAL;
2459         break;
2460 #endif /* PRISM2_NO_STATION_MODES */
2461 
2462     case PRISM2_PARAM_BCRX_STA_KEY:
2463         local->bcrx_sta_key = value;
2464         break;
2465 
2466     case PRISM2_PARAM_IEEE_802_1X:
2467         local->ieee_802_1x = value;
2468         break;
2469 
2470     case PRISM2_PARAM_ANTSEL_TX:
2471         if (value < 0 || value > HOSTAP_ANTSEL_HIGH) {
2472             ret = -EINVAL;
2473             break;
2474         }
2475         local->antsel_tx = value;
2476         hostap_set_antsel(local);
2477         break;
2478 
2479     case PRISM2_PARAM_ANTSEL_RX:
2480         if (value < 0 || value > HOSTAP_ANTSEL_HIGH) {
2481             ret = -EINVAL;
2482             break;
2483         }
2484         local->antsel_rx = value;
2485         hostap_set_antsel(local);
2486         break;
2487 
2488     case PRISM2_PARAM_MONITOR_TYPE:
2489         if (value != PRISM2_MONITOR_80211 &&
2490             value != PRISM2_MONITOR_CAPHDR &&
2491             value != PRISM2_MONITOR_PRISM &&
2492             value != PRISM2_MONITOR_RADIOTAP) {
2493             ret = -EINVAL;
2494             break;
2495         }
2496         local->monitor_type = value;
2497         if (local->iw_mode == IW_MODE_MONITOR)
2498             hostap_monitor_set_type(local);
2499         break;
2500 
2501     case PRISM2_PARAM_WDS_TYPE:
2502         local->wds_type = value;
2503         break;
2504 
2505     case PRISM2_PARAM_HOSTSCAN:
2506     {
2507         struct hfa384x_hostscan_request scan_req;
2508         u16 rate;
2509 
2510         memset(&scan_req, 0, sizeof(scan_req));
2511         scan_req.channel_list = cpu_to_le16(0x3fff);
2512         switch (value) {
2513         case 1: rate = HFA384X_RATES_1MBPS; break;
2514         case 2: rate = HFA384X_RATES_2MBPS; break;
2515         case 3: rate = HFA384X_RATES_5MBPS; break;
2516         case 4: rate = HFA384X_RATES_11MBPS; break;
2517         default: rate = HFA384X_RATES_1MBPS; break;
2518         }
2519         scan_req.txrate = cpu_to_le16(rate);
2520         /* leave SSID empty to accept all SSIDs */
2521 
2522         if (local->iw_mode == IW_MODE_MASTER) {
2523             if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
2524                         HFA384X_PORTTYPE_BSS) ||
2525                 local->func->reset_port(dev))
2526                 printk(KERN_DEBUG "Leaving Host AP mode "
2527                        "for HostScan failed\n");
2528         }
2529 
2530         if (local->func->set_rid(dev, HFA384X_RID_HOSTSCAN, &scan_req,
2531                      sizeof(scan_req))) {
2532             printk(KERN_DEBUG "HOSTSCAN failed\n");
2533             ret = -EINVAL;
2534         }
2535         if (local->iw_mode == IW_MODE_MASTER) {
2536             wait_queue_entry_t __wait;
2537             init_waitqueue_entry(&__wait, current);
2538             add_wait_queue(&local->hostscan_wq, &__wait);
2539             set_current_state(TASK_INTERRUPTIBLE);
2540             schedule_timeout(HZ);
2541             if (signal_pending(current))
2542                 ret = -EINTR;
2543             set_current_state(TASK_RUNNING);
2544             remove_wait_queue(&local->hostscan_wq, &__wait);
2545 
2546             if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
2547                         HFA384X_PORTTYPE_HOSTAP) ||
2548                 local->func->reset_port(dev))
2549                 printk(KERN_DEBUG "Returning to Host AP mode "
2550                        "after HostScan failed\n");
2551         }
2552         break;
2553     }
2554 
2555     case PRISM2_PARAM_AP_SCAN:
2556         local->passive_scan_interval = value;
2557         if (timer_pending(&local->passive_scan_timer))
2558             del_timer(&local->passive_scan_timer);
2559         if (value > 0 && value < INT_MAX / HZ) {
2560             local->passive_scan_timer.expires = jiffies +
2561                 local->passive_scan_interval * HZ;
2562             add_timer(&local->passive_scan_timer);
2563         }
2564         break;
2565 
2566     case PRISM2_PARAM_ENH_SEC:
2567         if (value < 0 || value > 3) {
2568             ret = -EINVAL;
2569             break;
2570         }
2571         local->enh_sec = value;
2572         if (hostap_set_word(dev, HFA384X_RID_CNFENHSECURITY,
2573                     local->enh_sec) ||
2574             local->func->reset_port(dev)) {
2575             printk(KERN_INFO "%s: cnfEnhSecurity requires STA f/w "
2576                    "1.6.3 or newer\n", dev->name);
2577             ret = -EOPNOTSUPP;
2578         }
2579         break;
2580 
2581 #ifdef PRISM2_IO_DEBUG
2582     case PRISM2_PARAM_IO_DEBUG:
2583         local->io_debug_enabled = value;
2584         break;
2585 #endif /* PRISM2_IO_DEBUG */
2586 
2587     case PRISM2_PARAM_BASIC_RATES:
2588         if ((value & local->tx_rate_control) != value || value == 0) {
2589             printk(KERN_INFO "%s: invalid basic rate set - basic "
2590                    "rates must be in supported rate set\n",
2591                    dev->name);
2592             ret = -EINVAL;
2593             break;
2594         }
2595         local->basic_rates = value;
2596         if (hostap_set_word(dev, HFA384X_RID_CNFBASICRATES,
2597                     local->basic_rates) ||
2598             local->func->reset_port(dev))
2599             ret = -EINVAL;
2600         break;
2601 
2602     case PRISM2_PARAM_OPER_RATES:
2603         local->tx_rate_control = value;
2604         if (hostap_set_rate(dev))
2605             ret = -EINVAL;
2606         break;
2607 
2608     case PRISM2_PARAM_HOSTAPD:
2609         ret = hostap_set_hostapd(local, value, 1);
2610         break;
2611 
2612     case PRISM2_PARAM_HOSTAPD_STA:
2613         ret = hostap_set_hostapd_sta(local, value, 1);
2614         break;
2615 
2616     case PRISM2_PARAM_WPA:
2617         local->wpa = value;
2618         if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
2619             ret = -EOPNOTSUPP;
2620         else if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE,
2621                      value ? 1 : 0))
2622             ret = -EINVAL;
2623         break;
2624 
2625     case PRISM2_PARAM_PRIVACY_INVOKED:
2626         local->privacy_invoked = value;
2627         if (hostap_set_encryption(local) ||
2628             local->func->reset_port(dev))
2629             ret = -EINVAL;
2630         break;
2631 
2632     case PRISM2_PARAM_TKIP_COUNTERMEASURES:
2633         local->tkip_countermeasures = value;
2634         break;
2635 
2636     case PRISM2_PARAM_DROP_UNENCRYPTED:
2637         local->drop_unencrypted = value;
2638         break;
2639 
2640     case PRISM2_PARAM_SCAN_CHANNEL_MASK:
2641         local->scan_channel_mask = value;
2642         break;
2643 
2644     default:
2645         printk(KERN_DEBUG "%s: prism2_param: unknown param %d\n",
2646                dev->name, param);
2647         ret = -EOPNOTSUPP;
2648         break;
2649     }
2650 
2651     return ret;
2652 }
2653 
2654 
2655 static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev,
2656                           struct iw_request_info *info,
2657                           void *wrqu, char *extra)
2658 {
2659     struct hostap_interface *iface;
2660     local_info_t *local;
2661     int *param = (int *) extra;
2662     int ret = 0;
2663 
2664     iface = netdev_priv(dev);
2665     local = iface->local;
2666 
2667     switch (*param) {
2668     case PRISM2_PARAM_TXRATECTRL:
2669         *param = local->fw_tx_rate_control;
2670         break;
2671 
2672     case PRISM2_PARAM_BEACON_INT:
2673         *param = local->beacon_int;
2674         break;
2675 
2676     case PRISM2_PARAM_PSEUDO_IBSS:
2677         *param = local->pseudo_adhoc;
2678         break;
2679 
2680     case PRISM2_PARAM_ALC:
2681         ret = -EOPNOTSUPP; /* FIX */
2682         break;
2683 
2684     case PRISM2_PARAM_DUMP:
2685         *param = local->frame_dump;
2686         break;
2687 
2688     case PRISM2_PARAM_OTHER_AP_POLICY:
2689         if (local->ap != NULL)
2690             *param = local->ap->ap_policy;
2691         else
2692             ret = -EOPNOTSUPP;
2693         break;
2694 
2695     case PRISM2_PARAM_AP_MAX_INACTIVITY:
2696         if (local->ap != NULL)
2697             *param = local->ap->max_inactivity / HZ;
2698         else
2699             ret = -EOPNOTSUPP;
2700         break;
2701 
2702     case PRISM2_PARAM_AP_BRIDGE_PACKETS:
2703         if (local->ap != NULL)
2704             *param = local->ap->bridge_packets;
2705         else
2706             ret = -EOPNOTSUPP;
2707         break;
2708 
2709     case PRISM2_PARAM_DTIM_PERIOD:
2710         *param = local->dtim_period;
2711         break;
2712 
2713     case PRISM2_PARAM_AP_NULLFUNC_ACK:
2714         if (local->ap != NULL)
2715             *param = local->ap->nullfunc_ack;
2716         else
2717             ret = -EOPNOTSUPP;
2718         break;
2719 
2720     case PRISM2_PARAM_MAX_WDS:
2721         *param = local->wds_max_connections;
2722         break;
2723 
2724     case PRISM2_PARAM_AP_AUTOM_AP_WDS:
2725         if (local->ap != NULL)
2726             *param = local->ap->autom_ap_wds;
2727         else
2728             ret = -EOPNOTSUPP;
2729         break;
2730 
2731     case PRISM2_PARAM_AP_AUTH_ALGS:
2732         *param = local->auth_algs;
2733         break;
2734 
2735     case PRISM2_PARAM_MONITOR_ALLOW_FCSERR:
2736         *param = local->monitor_allow_fcserr;
2737         break;
2738 
2739     case PRISM2_PARAM_HOST_ENCRYPT:
2740         *param = local->host_encrypt;
2741         break;
2742 
2743     case PRISM2_PARAM_HOST_DECRYPT:
2744         *param = local->host_decrypt;
2745         break;
2746 
2747     case PRISM2_PARAM_HOST_ROAMING:
2748         *param = local->host_roaming;
2749         break;
2750 
2751     case PRISM2_PARAM_BCRX_STA_KEY:
2752         *param = local->bcrx_sta_key;
2753         break;
2754 
2755     case PRISM2_PARAM_IEEE_802_1X:
2756         *param = local->ieee_802_1x;
2757         break;
2758 
2759     case PRISM2_PARAM_ANTSEL_TX:
2760         *param = local->antsel_tx;
2761         break;
2762 
2763     case PRISM2_PARAM_ANTSEL_RX:
2764         *param = local->antsel_rx;
2765         break;
2766 
2767     case PRISM2_PARAM_MONITOR_TYPE:
2768         *param = local->monitor_type;
2769         break;
2770 
2771     case PRISM2_PARAM_WDS_TYPE:
2772         *param = local->wds_type;
2773         break;
2774 
2775     case PRISM2_PARAM_HOSTSCAN:
2776         ret = -EOPNOTSUPP;
2777         break;
2778 
2779     case PRISM2_PARAM_AP_SCAN:
2780         *param = local->passive_scan_interval;
2781         break;
2782 
2783     case PRISM2_PARAM_ENH_SEC:
2784         *param = local->enh_sec;
2785         break;
2786 
2787 #ifdef PRISM2_IO_DEBUG
2788     case PRISM2_PARAM_IO_DEBUG:
2789         *param = local->io_debug_enabled;
2790         break;
2791 #endif /* PRISM2_IO_DEBUG */
2792 
2793     case PRISM2_PARAM_BASIC_RATES:
2794         *param = local->basic_rates;
2795         break;
2796 
2797     case PRISM2_PARAM_OPER_RATES:
2798         *param = local->tx_rate_control;
2799         break;
2800 
2801     case PRISM2_PARAM_HOSTAPD:
2802         *param = local->hostapd;
2803         break;
2804 
2805     case PRISM2_PARAM_HOSTAPD_STA:
2806         *param = local->hostapd_sta;
2807         break;
2808 
2809     case PRISM2_PARAM_WPA:
2810         if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
2811             ret = -EOPNOTSUPP;
2812         *param = local->wpa;
2813         break;
2814 
2815     case PRISM2_PARAM_PRIVACY_INVOKED:
2816         *param = local->privacy_invoked;
2817         break;
2818 
2819     case PRISM2_PARAM_TKIP_COUNTERMEASURES:
2820         *param = local->tkip_countermeasures;
2821         break;
2822 
2823     case PRISM2_PARAM_DROP_UNENCRYPTED:
2824         *param = local->drop_unencrypted;
2825         break;
2826 
2827     case PRISM2_PARAM_SCAN_CHANNEL_MASK:
2828         *param = local->scan_channel_mask;
2829         break;
2830 
2831     default:
2832         printk(KERN_DEBUG "%s: get_prism2_param: unknown param %d\n",
2833                dev->name, *param);
2834         ret = -EOPNOTSUPP;
2835         break;
2836     }
2837 
2838     return ret;
2839 }
2840 
2841 
2842 static int prism2_ioctl_priv_readmif(struct net_device *dev,
2843                      struct iw_request_info *info,
2844                      void *wrqu, char *extra)
2845 {
2846     struct hostap_interface *iface;
2847     local_info_t *local;
2848     u16 resp0;
2849 
2850     iface = netdev_priv(dev);
2851     local = iface->local;
2852 
2853     if (local->func->cmd(dev, HFA384X_CMDCODE_READMIF, *extra, NULL,
2854                  &resp0))
2855         return -EOPNOTSUPP;
2856     else
2857         *extra = resp0;
2858 
2859     return 0;
2860 }
2861 
2862 
2863 static int prism2_ioctl_priv_writemif(struct net_device *dev,
2864                       struct iw_request_info *info,
2865                       void *wrqu, char *extra)
2866 {
2867     struct hostap_interface *iface;
2868     local_info_t *local;
2869     u16 cr, val;
2870 
2871     iface = netdev_priv(dev);
2872     local = iface->local;
2873 
2874     cr = *extra;
2875     val = *(extra + 1);
2876     if (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, cr, &val, NULL))
2877         return -EOPNOTSUPP;
2878 
2879     return 0;
2880 }
2881 
2882 
2883 static int prism2_ioctl_priv_monitor(struct net_device *dev, int *i)
2884 {
2885     struct hostap_interface *iface;
2886     local_info_t *local;
2887     int ret = 0;
2888     u32 mode;
2889 
2890     iface = netdev_priv(dev);
2891     local = iface->local;
2892 
2893     printk(KERN_DEBUG "%s: process %d (%s) used deprecated iwpriv monitor "
2894            "- update software to use iwconfig mode monitor\n",
2895            dev->name, task_pid_nr(current), current->comm);
2896 
2897     /* Backward compatibility code - this can be removed at some point */
2898 
2899     if (*i == 0) {
2900         /* Disable monitor mode - old mode was not saved, so go to
2901          * Master mode */
2902         mode = IW_MODE_MASTER;
2903         ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL);
2904     } else if (*i == 1) {
2905         /* netlink socket mode is not supported anymore since it did
2906          * not separate different devices from each other and was not
2907          * best method for delivering large amount of packets to
2908          * user space */
2909         ret = -EOPNOTSUPP;
2910     } else if (*i == 2 || *i == 3) {
2911         switch (*i) {
2912         case 2:
2913             local->monitor_type = PRISM2_MONITOR_80211;
2914             break;
2915         case 3:
2916             local->monitor_type = PRISM2_MONITOR_PRISM;
2917             break;
2918         }
2919         mode = IW_MODE_MONITOR;
2920         ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL);
2921         hostap_monitor_mode_enable(local);
2922     } else
2923         ret = -EINVAL;
2924 
2925     return ret;
2926 }
2927 
2928 
2929 static int prism2_ioctl_priv_reset(struct net_device *dev, int *i)
2930 {
2931     struct hostap_interface *iface;
2932     local_info_t *local;
2933 
2934     iface = netdev_priv(dev);
2935     local = iface->local;
2936 
2937     printk(KERN_DEBUG "%s: manual reset request(%d)\n", dev->name, *i);
2938     switch (*i) {
2939     case 0:
2940         /* Disable and enable card */
2941         local->func->hw_shutdown(dev, 1);
2942         local->func->hw_config(dev, 0);
2943         break;
2944 
2945     case 1:
2946         /* COR sreset */
2947         local->func->hw_reset(dev);
2948         break;
2949 
2950     case 2:
2951         /* Disable and enable port 0 */
2952         local->func->reset_port(dev);
2953         break;
2954 
2955     case 3:
2956         prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
2957         if (local->func->cmd(dev, HFA384X_CMDCODE_DISABLE, 0, NULL,
2958                      NULL))
2959             return -EINVAL;
2960         break;
2961 
2962     case 4:
2963         if (local->func->cmd(dev, HFA384X_CMDCODE_ENABLE, 0, NULL,
2964                      NULL))
2965             return -EINVAL;
2966         break;
2967 
2968     default:
2969         printk(KERN_DEBUG "Unknown reset request %d\n", *i);
2970         return -EOPNOTSUPP;
2971     }
2972 
2973     return 0;
2974 }
2975 
2976 
2977 static int prism2_ioctl_priv_set_rid_word(struct net_device *dev, int *i)
2978 {
2979     int rid = *i;
2980     int value = *(i + 1);
2981 
2982     printk(KERN_DEBUG "%s: Set RID[0x%X] = %d\n", dev->name, rid, value);
2983 
2984     if (hostap_set_word(dev, rid, value))
2985         return -EINVAL;
2986 
2987     return 0;
2988 }
2989 
2990 
2991 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
2992 static int ap_mac_cmd_ioctl(local_info_t *local, int *cmd)
2993 {
2994     int ret = 0;
2995 
2996     switch (*cmd) {
2997     case AP_MAC_CMD_POLICY_OPEN:
2998         local->ap->mac_restrictions.policy = MAC_POLICY_OPEN;
2999         break;
3000     case AP_MAC_CMD_POLICY_ALLOW:
3001         local->ap->mac_restrictions.policy = MAC_POLICY_ALLOW;
3002         break;
3003     case AP_MAC_CMD_POLICY_DENY:
3004         local->ap->mac_restrictions.policy = MAC_POLICY_DENY;
3005         break;
3006     case AP_MAC_CMD_FLUSH:
3007         ap_control_flush_macs(&local->ap->mac_restrictions);
3008         break;
3009     case AP_MAC_CMD_KICKALL:
3010         ap_control_kickall(local->ap);
3011         hostap_deauth_all_stas(local->dev, local->ap, 0);
3012         break;
3013     default:
3014         ret = -EOPNOTSUPP;
3015         break;
3016     }
3017 
3018     return ret;
3019 }
3020 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
3021 
3022 
3023 #ifdef PRISM2_DOWNLOAD_SUPPORT
3024 static int prism2_ioctl_priv_download(local_info_t *local, struct iw_point *p)
3025 {
3026     struct prism2_download_param *param;
3027     int ret = 0;
3028 
3029     if (p->length < sizeof(struct prism2_download_param) ||
3030         p->length > 1024 || !p->pointer)
3031         return -EINVAL;
3032 
3033     param = memdup_user(p->pointer, p->length);
3034     if (IS_ERR(param)) {
3035         return PTR_ERR(param);
3036     }
3037 
3038     if (p->length < sizeof(struct prism2_download_param) +
3039         param->num_areas * sizeof(struct prism2_download_area)) {
3040         ret = -EINVAL;
3041         goto out;
3042     }
3043 
3044     ret = local->func->download(local, param);
3045 
3046  out:
3047     kfree(param);
3048     return ret;
3049 }
3050 #endif /* PRISM2_DOWNLOAD_SUPPORT */
3051 
3052 
3053 static int prism2_set_genericelement(struct net_device *dev, u8 *elem,
3054                      size_t len)
3055 {
3056     struct hostap_interface *iface = netdev_priv(dev);
3057     local_info_t *local = iface->local;
3058     u8 *buf;
3059 
3060     /*
3061      * Add 16-bit length in the beginning of the buffer because Prism2 RID
3062      * includes it.
3063      */
3064     buf = kmalloc(len + 2, GFP_KERNEL);
3065     if (buf == NULL)
3066         return -ENOMEM;
3067 
3068     *((__le16 *) buf) = cpu_to_le16(len);
3069     memcpy(buf + 2, elem, len);
3070 
3071     kfree(local->generic_elem);
3072     local->generic_elem = buf;
3073     local->generic_elem_len = len + 2;
3074 
3075     return local->func->set_rid(local->dev, HFA384X_RID_GENERICELEMENT,
3076                     buf, len + 2);
3077 }
3078 
3079 
3080 static int prism2_ioctl_siwauth(struct net_device *dev,
3081                 struct iw_request_info *info,
3082                 struct iw_param *data, char *extra)
3083 {
3084     struct hostap_interface *iface = netdev_priv(dev);
3085     local_info_t *local = iface->local;
3086 
3087     switch (data->flags & IW_AUTH_INDEX) {
3088     case IW_AUTH_WPA_VERSION:
3089     case IW_AUTH_CIPHER_PAIRWISE:
3090     case IW_AUTH_CIPHER_GROUP:
3091     case IW_AUTH_KEY_MGMT:
3092         /*
3093          * Host AP driver does not use these parameters and allows
3094          * wpa_supplicant to control them internally.
3095          */
3096         break;
3097     case IW_AUTH_TKIP_COUNTERMEASURES:
3098         local->tkip_countermeasures = data->value;
3099         break;
3100     case IW_AUTH_DROP_UNENCRYPTED:
3101         local->drop_unencrypted = data->value;
3102         break;
3103     case IW_AUTH_80211_AUTH_ALG:
3104         local->auth_algs = data->value;
3105         break;
3106     case IW_AUTH_WPA_ENABLED:
3107         if (data->value == 0) {
3108             local->wpa = 0;
3109             if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
3110                 break;
3111             prism2_set_genericelement(dev, "", 0);
3112             local->host_roaming = 0;
3113             local->privacy_invoked = 0;
3114             if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE,
3115                         0) ||
3116                 hostap_set_roaming(local) ||
3117                 hostap_set_encryption(local) ||
3118                 local->func->reset_port(dev))
3119                 return -EINVAL;
3120             break;
3121         }
3122         if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
3123             return -EOPNOTSUPP;
3124         local->host_roaming = 2;
3125         local->privacy_invoked = 1;
3126         local->wpa = 1;
3127         if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, 1) ||
3128             hostap_set_roaming(local) ||
3129             hostap_set_encryption(local) ||
3130             local->func->reset_port(dev))
3131             return -EINVAL;
3132         break;
3133     case IW_AUTH_RX_UNENCRYPTED_EAPOL:
3134         local->ieee_802_1x = data->value;
3135         break;
3136     case IW_AUTH_PRIVACY_INVOKED:
3137         local->privacy_invoked = data->value;
3138         break;
3139     default:
3140         return -EOPNOTSUPP;
3141     }
3142     return 0;
3143 }
3144 
3145 
3146 static int prism2_ioctl_giwauth(struct net_device *dev,
3147                 struct iw_request_info *info,
3148                 struct iw_param *data, char *extra)
3149 {
3150     struct hostap_interface *iface = netdev_priv(dev);
3151     local_info_t *local = iface->local;
3152 
3153     switch (data->flags & IW_AUTH_INDEX) {
3154     case IW_AUTH_WPA_VERSION:
3155     case IW_AUTH_CIPHER_PAIRWISE:
3156     case IW_AUTH_CIPHER_GROUP:
3157     case IW_AUTH_KEY_MGMT:
3158         /*
3159          * Host AP driver does not use these parameters and allows
3160          * wpa_supplicant to control them internally.
3161          */
3162         return -EOPNOTSUPP;
3163     case IW_AUTH_TKIP_COUNTERMEASURES:
3164         data->value = local->tkip_countermeasures;
3165         break;
3166     case IW_AUTH_DROP_UNENCRYPTED:
3167         data->value = local->drop_unencrypted;
3168         break;
3169     case IW_AUTH_80211_AUTH_ALG:
3170         data->value = local->auth_algs;
3171         break;
3172     case IW_AUTH_WPA_ENABLED:
3173         data->value = local->wpa;
3174         break;
3175     case IW_AUTH_RX_UNENCRYPTED_EAPOL:
3176         data->value = local->ieee_802_1x;
3177         break;
3178     default:
3179         return -EOPNOTSUPP;
3180     }
3181     return 0;
3182 }
3183 
3184 
3185 static int prism2_ioctl_siwencodeext(struct net_device *dev,
3186                      struct iw_request_info *info,
3187                      struct iw_point *erq, char *extra)
3188 {
3189     struct hostap_interface *iface = netdev_priv(dev);
3190     local_info_t *local = iface->local;
3191     struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
3192     int i, ret = 0;
3193     struct lib80211_crypto_ops *ops;
3194     struct lib80211_crypt_data **crypt;
3195     void *sta_ptr;
3196     u8 *addr;
3197     const char *alg, *module;
3198 
3199     i = erq->flags & IW_ENCODE_INDEX;
3200     if (i > WEP_KEYS)
3201         return -EINVAL;
3202     if (i < 1 || i > WEP_KEYS)
3203         i = local->crypt_info.tx_keyidx;
3204     else
3205         i--;
3206     if (i < 0 || i >= WEP_KEYS)
3207         return -EINVAL;
3208 
3209     addr = ext->addr.sa_data;
3210     if (is_broadcast_ether_addr(addr)) {
3211         sta_ptr = NULL;
3212         crypt = &local->crypt_info.crypt[i];
3213     } else {
3214         if (i != 0)
3215             return -EINVAL;
3216         sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt);
3217         if (sta_ptr == NULL) {
3218             if (local->iw_mode == IW_MODE_INFRA) {
3219                 /*
3220                  * TODO: add STA entry for the current AP so
3221                  * that unicast key can be used. For now, this
3222                  * is emulated by using default key idx 0.
3223                  */
3224                 i = 0;
3225                 crypt = &local->crypt_info.crypt[i];
3226             } else
3227                 return -EINVAL;
3228         }
3229     }
3230 
3231     if ((erq->flags & IW_ENCODE_DISABLED) ||
3232         ext->alg == IW_ENCODE_ALG_NONE) {
3233         if (*crypt)
3234             lib80211_crypt_delayed_deinit(&local->crypt_info, crypt);
3235         goto done;
3236     }
3237 
3238     switch (ext->alg) {
3239     case IW_ENCODE_ALG_WEP:
3240         alg = "WEP";
3241         module = "lib80211_crypt_wep";
3242         break;
3243     case IW_ENCODE_ALG_TKIP:
3244         alg = "TKIP";
3245         module = "lib80211_crypt_tkip";
3246         break;
3247     case IW_ENCODE_ALG_CCMP:
3248         alg = "CCMP";
3249         module = "lib80211_crypt_ccmp";
3250         break;
3251     default:
3252         printk(KERN_DEBUG "%s: unsupported algorithm %d\n",
3253                local->dev->name, ext->alg);
3254         ret = -EOPNOTSUPP;
3255         goto done;
3256     }
3257 
3258     ops = lib80211_get_crypto_ops(alg);
3259     if (ops == NULL) {
3260         request_module(module);
3261         ops = lib80211_get_crypto_ops(alg);
3262     }
3263     if (ops == NULL) {
3264         printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
3265                local->dev->name, alg);
3266         ret = -EOPNOTSUPP;
3267         goto done;
3268     }
3269 
3270     if (sta_ptr || ext->alg != IW_ENCODE_ALG_WEP) {
3271         /*
3272          * Per station encryption and other than WEP algorithms
3273          * require host-based encryption, so force them on
3274          * automatically.
3275          */
3276         local->host_decrypt = local->host_encrypt = 1;
3277     }
3278 
3279     if (*crypt == NULL || (*crypt)->ops != ops) {
3280         struct lib80211_crypt_data *new_crypt;
3281 
3282         lib80211_crypt_delayed_deinit(&local->crypt_info, crypt);
3283 
3284         new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
3285                 GFP_KERNEL);
3286         if (new_crypt == NULL) {
3287             ret = -ENOMEM;
3288             goto done;
3289         }
3290         new_crypt->ops = ops;
3291         if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
3292             new_crypt->priv = new_crypt->ops->init(i);
3293         if (new_crypt->priv == NULL) {
3294             kfree(new_crypt);
3295             ret = -EINVAL;
3296             goto done;
3297         }
3298 
3299         *crypt = new_crypt;
3300     }
3301 
3302     /*
3303      * TODO: if ext_flags does not have IW_ENCODE_EXT_RX_SEQ_VALID, the
3304      * existing seq# should not be changed.
3305      * TODO: if ext_flags has IW_ENCODE_EXT_TX_SEQ_VALID, next TX seq#
3306      * should be changed to something else than zero.
3307      */
3308     if ((!(ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) || ext->key_len > 0)
3309         && (*crypt)->ops->set_key &&
3310         (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
3311                    (*crypt)->priv) < 0) {
3312         printk(KERN_DEBUG "%s: key setting failed\n",
3313                local->dev->name);
3314         ret = -EINVAL;
3315         goto done;
3316     }
3317 
3318     if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
3319         if (!sta_ptr)
3320             local->crypt_info.tx_keyidx = i;
3321     }
3322 
3323 
3324     if (sta_ptr == NULL && ext->key_len > 0) {
3325         int first = 1, j;
3326         for (j = 0; j < WEP_KEYS; j++) {
3327             if (j != i && local->crypt_info.crypt[j]) {
3328                 first = 0;
3329                 break;
3330             }
3331         }
3332         if (first)
3333             local->crypt_info.tx_keyidx = i;
3334     }
3335 
3336  done:
3337     if (sta_ptr)
3338         hostap_handle_sta_release(sta_ptr);
3339 
3340     local->open_wep = erq->flags & IW_ENCODE_OPEN;
3341 
3342     /*
3343      * Do not reset port0 if card is in Managed mode since resetting will
3344      * generate new IEEE 802.11 authentication which may end up in looping
3345      * with IEEE 802.1X. Prism2 documentation seem to require port reset
3346      * after WEP configuration. However, keys are apparently changed at
3347      * least in Managed mode.
3348      */
3349     if (ret == 0 &&
3350         (hostap_set_encryption(local) ||
3351          (local->iw_mode != IW_MODE_INFRA &&
3352           local->func->reset_port(local->dev))))
3353         ret = -EINVAL;
3354 
3355     return ret;
3356 }
3357 
3358 
3359 static int prism2_ioctl_giwencodeext(struct net_device *dev,
3360                      struct iw_request_info *info,
3361                      struct iw_point *erq, char *extra)
3362 {
3363     struct hostap_interface *iface = netdev_priv(dev);
3364     local_info_t *local = iface->local;
3365     struct lib80211_crypt_data **crypt;
3366     void *sta_ptr;
3367     int max_key_len, i;
3368     struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
3369     u8 *addr;
3370 
3371     max_key_len = erq->length - sizeof(*ext);
3372     if (max_key_len < 0)
3373         return -EINVAL;
3374 
3375     i = erq->flags & IW_ENCODE_INDEX;
3376     if (i < 1 || i > WEP_KEYS)
3377         i = local->crypt_info.tx_keyidx;
3378     else
3379         i--;
3380 
3381     addr = ext->addr.sa_data;
3382     if (is_broadcast_ether_addr(addr)) {
3383         sta_ptr = NULL;
3384         crypt = &local->crypt_info.crypt[i];
3385     } else {
3386         i = 0;
3387         sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt);
3388         if (sta_ptr == NULL)
3389             return -EINVAL;
3390     }
3391     erq->flags = i + 1;
3392     memset(ext, 0, sizeof(*ext));
3393 
3394     if (*crypt == NULL || (*crypt)->ops == NULL) {
3395         ext->alg = IW_ENCODE_ALG_NONE;
3396         ext->key_len = 0;
3397         erq->flags |= IW_ENCODE_DISABLED;
3398     } else {
3399         if (strcmp((*crypt)->ops->name, "WEP") == 0)
3400             ext->alg = IW_ENCODE_ALG_WEP;
3401         else if (strcmp((*crypt)->ops->name, "TKIP") == 0)
3402             ext->alg = IW_ENCODE_ALG_TKIP;
3403         else if (strcmp((*crypt)->ops->name, "CCMP") == 0)
3404             ext->alg = IW_ENCODE_ALG_CCMP;
3405         else
3406             return -EINVAL;
3407 
3408         if ((*crypt)->ops->get_key) {
3409             ext->key_len =
3410                 (*crypt)->ops->get_key(ext->key,
3411                                max_key_len,
3412                                ext->tx_seq,
3413                                (*crypt)->priv);
3414             if (ext->key_len &&
3415                 (ext->alg == IW_ENCODE_ALG_TKIP ||
3416                  ext->alg == IW_ENCODE_ALG_CCMP))
3417                 ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
3418         }
3419     }
3420 
3421     if (sta_ptr)
3422         hostap_handle_sta_release(sta_ptr);
3423 
3424     return 0;
3425 }
3426 
3427 
3428 static int prism2_ioctl_set_encryption(local_info_t *local,
3429                        struct prism2_hostapd_param *param,
3430                        int param_len)
3431 {
3432     int ret = 0;
3433     struct lib80211_crypto_ops *ops;
3434     struct lib80211_crypt_data **crypt;
3435     void *sta_ptr;
3436 
3437     param->u.crypt.err = 0;
3438     param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0';
3439 
3440     if (param_len !=
3441         (int) ((char *) param->u.crypt.key - (char *) param) +
3442         param->u.crypt.key_len)
3443         return -EINVAL;
3444 
3445     if (is_broadcast_ether_addr(param->sta_addr)) {
3446         if (param->u.crypt.idx >= WEP_KEYS)
3447             return -EINVAL;
3448         sta_ptr = NULL;
3449         crypt = &local->crypt_info.crypt[param->u.crypt.idx];
3450     } else {
3451         if (param->u.crypt.idx)
3452             return -EINVAL;
3453         sta_ptr = ap_crypt_get_ptrs(
3454             local->ap, param->sta_addr,
3455             (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_PERMANENT),
3456             &crypt);
3457 
3458         if (sta_ptr == NULL) {
3459             param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
3460             return -EINVAL;
3461         }
3462     }
3463 
3464     if (strcmp(param->u.crypt.alg, "none") == 0) {
3465         if (crypt)
3466             lib80211_crypt_delayed_deinit(&local->crypt_info, crypt);
3467         goto done;
3468     }
3469 
3470     ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3471     if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
3472         request_module("lib80211_crypt_wep");
3473         ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3474     } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
3475         request_module("lib80211_crypt_tkip");
3476         ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3477     } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
3478         request_module("lib80211_crypt_ccmp");
3479         ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3480     }
3481     if (ops == NULL) {
3482         printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
3483                local->dev->name, param->u.crypt.alg);
3484         param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ALG;
3485         ret = -EINVAL;
3486         goto done;
3487     }
3488 
3489     /* station based encryption and other than WEP algorithms require
3490      * host-based encryption, so force them on automatically */
3491     local->host_decrypt = local->host_encrypt = 1;
3492 
3493     if (*crypt == NULL || (*crypt)->ops != ops) {
3494         struct lib80211_crypt_data *new_crypt;
3495 
3496         lib80211_crypt_delayed_deinit(&local->crypt_info, crypt);
3497 
3498         new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
3499                 GFP_KERNEL);
3500         if (new_crypt == NULL) {
3501             ret = -ENOMEM;
3502             goto done;
3503         }
3504         new_crypt->ops = ops;
3505         new_crypt->priv = new_crypt->ops->init(param->u.crypt.idx);
3506         if (new_crypt->priv == NULL) {
3507             kfree(new_crypt);
3508             param->u.crypt.err =
3509                 HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED;
3510             ret = -EINVAL;
3511             goto done;
3512         }
3513 
3514         *crypt = new_crypt;
3515     }
3516 
3517     if ((!(param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) ||
3518          param->u.crypt.key_len > 0) && (*crypt)->ops->set_key &&
3519         (*crypt)->ops->set_key(param->u.crypt.key,
3520                    param->u.crypt.key_len, param->u.crypt.seq,
3521                    (*crypt)->priv) < 0) {
3522         printk(KERN_DEBUG "%s: key setting failed\n",
3523                local->dev->name);
3524         param->u.crypt.err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
3525         ret = -EINVAL;
3526         goto done;
3527     }
3528 
3529     if (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) {
3530         if (!sta_ptr)
3531             local->crypt_info.tx_keyidx = param->u.crypt.idx;
3532         else if (param->u.crypt.idx) {
3533             printk(KERN_DEBUG "%s: TX key idx setting failed\n",
3534                    local->dev->name);
3535             param->u.crypt.err =
3536                 HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED;
3537             ret = -EINVAL;
3538             goto done;
3539         }
3540     }
3541 
3542  done:
3543     if (sta_ptr)
3544         hostap_handle_sta_release(sta_ptr);
3545 
3546     /* Do not reset port0 if card is in Managed mode since resetting will
3547      * generate new IEEE 802.11 authentication which may end up in looping
3548      * with IEEE 802.1X. Prism2 documentation seem to require port reset
3549      * after WEP configuration. However, keys are apparently changed at
3550      * least in Managed mode. */
3551     if (ret == 0 &&
3552         (hostap_set_encryption(local) ||
3553          (local->iw_mode != IW_MODE_INFRA &&
3554           local->func->reset_port(local->dev)))) {
3555         param->u.crypt.err = HOSTAP_CRYPT_ERR_CARD_CONF_FAILED;
3556         return -EINVAL;
3557     }
3558 
3559     return ret;
3560 }
3561 
3562 
3563 static int prism2_ioctl_get_encryption(local_info_t *local,
3564                        struct prism2_hostapd_param *param,
3565                        int param_len)
3566 {
3567     struct lib80211_crypt_data **crypt;
3568     void *sta_ptr;
3569     int max_key_len;
3570 
3571     param->u.crypt.err = 0;
3572 
3573     max_key_len = param_len -
3574         (int) ((char *) param->u.crypt.key - (char *) param);
3575     if (max_key_len < 0)
3576         return -EINVAL;
3577 
3578     if (is_broadcast_ether_addr(param->sta_addr)) {
3579         sta_ptr = NULL;
3580         if (param->u.crypt.idx >= WEP_KEYS)
3581             param->u.crypt.idx = local->crypt_info.tx_keyidx;
3582         crypt = &local->crypt_info.crypt[param->u.crypt.idx];
3583     } else {
3584         param->u.crypt.idx = 0;
3585         sta_ptr = ap_crypt_get_ptrs(local->ap, param->sta_addr, 0,
3586                         &crypt);
3587 
3588         if (sta_ptr == NULL) {
3589             param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
3590             return -EINVAL;
3591         }
3592     }
3593 
3594     if (*crypt == NULL || (*crypt)->ops == NULL) {
3595         memcpy(param->u.crypt.alg, "none", 5);
3596         param->u.crypt.key_len = 0;
3597         param->u.crypt.idx = 0xff;
3598     } else {
3599         strncpy(param->u.crypt.alg, (*crypt)->ops->name,
3600             HOSTAP_CRYPT_ALG_NAME_LEN);
3601         param->u.crypt.key_len = 0;
3602 
3603         memset(param->u.crypt.seq, 0, 8);
3604         if ((*crypt)->ops->get_key) {
3605             param->u.crypt.key_len =
3606                 (*crypt)->ops->get_key(param->u.crypt.key,
3607                                max_key_len,
3608                                param->u.crypt.seq,
3609                                (*crypt)->priv);
3610         }
3611     }
3612 
3613     if (sta_ptr)
3614         hostap_handle_sta_release(sta_ptr);
3615 
3616     return 0;
3617 }
3618 
3619 
3620 static int prism2_ioctl_get_rid(local_info_t *local,
3621                 struct prism2_hostapd_param *param,
3622                 int param_len)
3623 {
3624     int max_len, res;
3625 
3626     max_len = param_len - PRISM2_HOSTAPD_RID_HDR_LEN;
3627     if (max_len < 0)
3628         return -EINVAL;
3629 
3630     res = local->func->get_rid(local->dev, param->u.rid.rid,
3631                    param->u.rid.data, param->u.rid.len, 0);
3632     if (res >= 0) {
3633         param->u.rid.len = res;
3634         return 0;
3635     }
3636 
3637     return res;
3638 }
3639 
3640 
3641 static int prism2_ioctl_set_rid(local_info_t *local,
3642                 struct prism2_hostapd_param *param,
3643                 int param_len)
3644 {
3645     int max_len;
3646 
3647     max_len = param_len - PRISM2_HOSTAPD_RID_HDR_LEN;
3648     if (max_len < 0 || max_len < param->u.rid.len)
3649         return -EINVAL;
3650 
3651     return local->func->set_rid(local->dev, param->u.rid.rid,
3652                     param->u.rid.data, param->u.rid.len);
3653 }
3654 
3655 
3656 static int prism2_ioctl_set_assoc_ap_addr(local_info_t *local,
3657                       struct prism2_hostapd_param *param,
3658                       int param_len)
3659 {
3660     printk(KERN_DEBUG "%ssta: associated as client with AP %pM\n",
3661            local->dev->name, param->sta_addr);
3662     memcpy(local->assoc_ap_addr, param->sta_addr, ETH_ALEN);
3663     return 0;
3664 }
3665 
3666 
3667 static int prism2_ioctl_siwgenie(struct net_device *dev,
3668                  struct iw_request_info *info,
3669                  struct iw_point *data, char *extra)
3670 {
3671     return prism2_set_genericelement(dev, extra, data->length);
3672 }
3673 
3674 
3675 static int prism2_ioctl_giwgenie(struct net_device *dev,
3676                  struct iw_request_info *info,
3677                  struct iw_point *data, char *extra)
3678 {
3679     struct hostap_interface *iface = netdev_priv(dev);
3680     local_info_t *local = iface->local;
3681     int len = local->generic_elem_len - 2;
3682 
3683     if (len <= 0 || local->generic_elem == NULL) {
3684         data->length = 0;
3685         return 0;
3686     }
3687 
3688     if (data->length < len)
3689         return -E2BIG;
3690 
3691     data->length = len;
3692     memcpy(extra, local->generic_elem + 2, len);
3693 
3694     return 0;
3695 }
3696 
3697 
3698 static int prism2_ioctl_set_generic_element(local_info_t *local,
3699                         struct prism2_hostapd_param *param,
3700                         int param_len)
3701 {
3702     int max_len, len;
3703 
3704     len = param->u.generic_elem.len;
3705     max_len = param_len - PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
3706     if (max_len < 0 || max_len < len)
3707         return -EINVAL;
3708 
3709     return prism2_set_genericelement(local->dev,
3710                      param->u.generic_elem.data, len);
3711 }
3712 
3713 
3714 static int prism2_ioctl_siwmlme(struct net_device *dev,
3715                 struct iw_request_info *info,
3716                 struct iw_point *data, char *extra)
3717 {
3718     struct hostap_interface *iface = netdev_priv(dev);
3719     local_info_t *local = iface->local;
3720     struct iw_mlme *mlme = (struct iw_mlme *) extra;
3721     __le16 reason;
3722 
3723     reason = cpu_to_le16(mlme->reason_code);
3724 
3725     switch (mlme->cmd) {
3726     case IW_MLME_DEAUTH:
3727         return prism2_sta_send_mgmt(local, mlme->addr.sa_data,
3728                         IEEE80211_STYPE_DEAUTH,
3729                         (u8 *) &reason, 2);
3730     case IW_MLME_DISASSOC:
3731         return prism2_sta_send_mgmt(local, mlme->addr.sa_data,
3732                         IEEE80211_STYPE_DISASSOC,
3733                         (u8 *) &reason, 2);
3734     default:
3735         return -EOPNOTSUPP;
3736     }
3737 }
3738 
3739 
3740 static int prism2_ioctl_mlme(local_info_t *local,
3741                  struct prism2_hostapd_param *param)
3742 {
3743     __le16 reason;
3744 
3745     reason = cpu_to_le16(param->u.mlme.reason_code);
3746     switch (param->u.mlme.cmd) {
3747     case MLME_STA_DEAUTH:
3748         return prism2_sta_send_mgmt(local, param->sta_addr,
3749                         IEEE80211_STYPE_DEAUTH,
3750                         (u8 *) &reason, 2);
3751     case MLME_STA_DISASSOC:
3752         return prism2_sta_send_mgmt(local, param->sta_addr,
3753                         IEEE80211_STYPE_DISASSOC,
3754                         (u8 *) &reason, 2);
3755     default:
3756         return -EOPNOTSUPP;
3757     }
3758 }
3759 
3760 
3761 static int prism2_ioctl_scan_req(local_info_t *local,
3762                  struct prism2_hostapd_param *param)
3763 {
3764 #ifndef PRISM2_NO_STATION_MODES
3765     if ((local->iw_mode != IW_MODE_INFRA &&
3766          local->iw_mode != IW_MODE_ADHOC) ||
3767         (local->sta_fw_ver < PRISM2_FW_VER(1,3,1)))
3768         return -EOPNOTSUPP;
3769 
3770     if (!local->dev_enabled)
3771         return -ENETDOWN;
3772 
3773     return prism2_request_hostscan(local->dev, param->u.scan_req.ssid,
3774                        param->u.scan_req.ssid_len);
3775 #else /* PRISM2_NO_STATION_MODES */
3776     return -EOPNOTSUPP;
3777 #endif /* PRISM2_NO_STATION_MODES */
3778 }
3779 
3780 
3781 static int prism2_ioctl_priv_hostapd(local_info_t *local, struct iw_point *p)
3782 {
3783     struct prism2_hostapd_param *param;
3784     int ret = 0;
3785     int ap_ioctl = 0;
3786 
3787     if (p->length < sizeof(struct prism2_hostapd_param) ||
3788         p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
3789         return -EINVAL;
3790 
3791     param = memdup_user(p->pointer, p->length);
3792     if (IS_ERR(param)) {
3793         return PTR_ERR(param);
3794     }
3795 
3796     switch (param->cmd) {
3797     case PRISM2_SET_ENCRYPTION:
3798         ret = prism2_ioctl_set_encryption(local, param, p->length);
3799         break;
3800     case PRISM2_GET_ENCRYPTION:
3801         ret = prism2_ioctl_get_encryption(local, param, p->length);
3802         break;
3803     case PRISM2_HOSTAPD_GET_RID:
3804         ret = prism2_ioctl_get_rid(local, param, p->length);
3805         break;
3806     case PRISM2_HOSTAPD_SET_RID:
3807         ret = prism2_ioctl_set_rid(local, param, p->length);
3808         break;
3809     case PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR:
3810         ret = prism2_ioctl_set_assoc_ap_addr(local, param, p->length);
3811         break;
3812     case PRISM2_HOSTAPD_SET_GENERIC_ELEMENT:
3813         ret = prism2_ioctl_set_generic_element(local, param,
3814                                p->length);
3815         break;
3816     case PRISM2_HOSTAPD_MLME:
3817         ret = prism2_ioctl_mlme(local, param);
3818         break;
3819     case PRISM2_HOSTAPD_SCAN_REQ:
3820         ret = prism2_ioctl_scan_req(local, param);
3821         break;
3822     default:
3823         ret = prism2_hostapd(local->ap, param);
3824         ap_ioctl = 1;
3825         break;
3826     }
3827 
3828     if (ret == 1 || !ap_ioctl) {
3829         if (copy_to_user(p->pointer, param, p->length)) {
3830             ret = -EFAULT;
3831             goto out;
3832         } else if (ap_ioctl)
3833             ret = 0;
3834     }
3835 
3836  out:
3837     kfree(param);
3838     return ret;
3839 }
3840 
3841 
3842 static void prism2_get_drvinfo(struct net_device *dev,
3843                    struct ethtool_drvinfo *info)
3844 {
3845     struct hostap_interface *iface;
3846     local_info_t *local;
3847 
3848     iface = netdev_priv(dev);
3849     local = iface->local;
3850 
3851     strlcpy(info->driver, "hostap", sizeof(info->driver));
3852     snprintf(info->fw_version, sizeof(info->fw_version),
3853          "%d.%d.%d", (local->sta_fw_ver >> 16) & 0xff,
3854          (local->sta_fw_ver >> 8) & 0xff,
3855          local->sta_fw_ver & 0xff);
3856 }
3857 
3858 const struct ethtool_ops prism2_ethtool_ops = {
3859     .get_drvinfo = prism2_get_drvinfo
3860 };
3861 
3862 
3863 /* Structures to export the Wireless Handlers */
3864 
3865 static const iw_handler prism2_handler[] =
3866 {
3867     (iw_handler) NULL,              /* SIOCSIWCOMMIT */
3868     (iw_handler) prism2_get_name,           /* SIOCGIWNAME */
3869     (iw_handler) NULL,              /* SIOCSIWNWID */
3870     (iw_handler) NULL,              /* SIOCGIWNWID */
3871     (iw_handler) prism2_ioctl_siwfreq,      /* SIOCSIWFREQ */
3872     (iw_handler) prism2_ioctl_giwfreq,      /* SIOCGIWFREQ */
3873     (iw_handler) prism2_ioctl_siwmode,      /* SIOCSIWMODE */
3874     (iw_handler) prism2_ioctl_giwmode,      /* SIOCGIWMODE */
3875     (iw_handler) prism2_ioctl_siwsens,      /* SIOCSIWSENS */
3876     (iw_handler) prism2_ioctl_giwsens,      /* SIOCGIWSENS */
3877     (iw_handler) NULL /* not used */,       /* SIOCSIWRANGE */
3878     (iw_handler) prism2_ioctl_giwrange,     /* SIOCGIWRANGE */
3879     (iw_handler) NULL /* not used */,       /* SIOCSIWPRIV */
3880     (iw_handler) NULL /* kernel code */,        /* SIOCGIWPRIV */
3881     (iw_handler) NULL /* not used */,       /* SIOCSIWSTATS */
3882     (iw_handler) NULL /* kernel code */,        /* SIOCGIWSTATS */
3883     iw_handler_set_spy,             /* SIOCSIWSPY */
3884     iw_handler_get_spy,             /* SIOCGIWSPY */
3885     iw_handler_set_thrspy,              /* SIOCSIWTHRSPY */
3886     iw_handler_get_thrspy,              /* SIOCGIWTHRSPY */
3887     (iw_handler) prism2_ioctl_siwap,        /* SIOCSIWAP */
3888     (iw_handler) prism2_ioctl_giwap,        /* SIOCGIWAP */
3889     (iw_handler) prism2_ioctl_siwmlme,      /* SIOCSIWMLME */
3890     (iw_handler) prism2_ioctl_giwaplist,        /* SIOCGIWAPLIST */
3891     (iw_handler) prism2_ioctl_siwscan,      /* SIOCSIWSCAN */
3892     (iw_handler) prism2_ioctl_giwscan,      /* SIOCGIWSCAN */
3893     (iw_handler) prism2_ioctl_siwessid,     /* SIOCSIWESSID */
3894     (iw_handler) prism2_ioctl_giwessid,     /* SIOCGIWESSID */
3895     (iw_handler) prism2_ioctl_siwnickn,     /* SIOCSIWNICKN */
3896     (iw_handler) prism2_ioctl_giwnickn,     /* SIOCGIWNICKN */
3897     (iw_handler) NULL,              /* -- hole -- */
3898     (iw_handler) NULL,              /* -- hole -- */
3899     (iw_handler) prism2_ioctl_siwrate,      /* SIOCSIWRATE */
3900     (iw_handler) prism2_ioctl_giwrate,      /* SIOCGIWRATE */
3901     (iw_handler) prism2_ioctl_siwrts,       /* SIOCSIWRTS */
3902     (iw_handler) prism2_ioctl_giwrts,       /* SIOCGIWRTS */
3903     (iw_handler) prism2_ioctl_siwfrag,      /* SIOCSIWFRAG */
3904     (iw_handler) prism2_ioctl_giwfrag,      /* SIOCGIWFRAG */
3905     (iw_handler) prism2_ioctl_siwtxpow,     /* SIOCSIWTXPOW */
3906     (iw_handler) prism2_ioctl_giwtxpow,     /* SIOCGIWTXPOW */
3907     (iw_handler) prism2_ioctl_siwretry,     /* SIOCSIWRETRY */
3908     (iw_handler) prism2_ioctl_giwretry,     /* SIOCGIWRETRY */
3909     (iw_handler) prism2_ioctl_siwencode,        /* SIOCSIWENCODE */
3910     (iw_handler) prism2_ioctl_giwencode,        /* SIOCGIWENCODE */
3911     (iw_handler) prism2_ioctl_siwpower,     /* SIOCSIWPOWER */
3912     (iw_handler) prism2_ioctl_giwpower,     /* SIOCGIWPOWER */
3913     (iw_handler) NULL,              /* -- hole -- */
3914     (iw_handler) NULL,              /* -- hole -- */
3915     (iw_handler) prism2_ioctl_siwgenie,     /* SIOCSIWGENIE */
3916     (iw_handler) prism2_ioctl_giwgenie,     /* SIOCGIWGENIE */
3917     (iw_handler) prism2_ioctl_siwauth,      /* SIOCSIWAUTH */
3918     (iw_handler) prism2_ioctl_giwauth,      /* SIOCGIWAUTH */
3919     (iw_handler) prism2_ioctl_siwencodeext,     /* SIOCSIWENCODEEXT */
3920     (iw_handler) prism2_ioctl_giwencodeext,     /* SIOCGIWENCODEEXT */
3921     (iw_handler) NULL,              /* SIOCSIWPMKSA */
3922     (iw_handler) NULL,              /* -- hole -- */
3923 };
3924 
3925 static const iw_handler prism2_private_handler[] =
3926 {                           /* SIOCIWFIRSTPRIV + */
3927     (iw_handler) prism2_ioctl_priv_prism2_param,    /* 0 */
3928     (iw_handler) prism2_ioctl_priv_get_prism2_param, /* 1 */
3929     (iw_handler) prism2_ioctl_priv_writemif,    /* 2 */
3930     (iw_handler) prism2_ioctl_priv_readmif,     /* 3 */
3931 };
3932 
3933 const struct iw_handler_def hostap_iw_handler_def =
3934 {
3935     .num_standard   = ARRAY_SIZE(prism2_handler),
3936     .num_private    = ARRAY_SIZE(prism2_private_handler),
3937     .num_private_args = ARRAY_SIZE(prism2_priv),
3938     .standard   = (iw_handler *) prism2_handler,
3939     .private    = (iw_handler *) prism2_private_handler,
3940     .private_args   = (struct iw_priv_args *) prism2_priv,
3941     .get_wireless_stats = hostap_get_wireless_stats,
3942 };
3943 
3944 /* Private ioctls (iwpriv) that have not yet been converted
3945  * into new wireless extensions API */
3946 int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3947 {
3948     struct iwreq *wrq = (struct iwreq *) ifr;
3949     struct hostap_interface *iface;
3950     local_info_t *local;
3951     int ret = 0;
3952 
3953     iface = netdev_priv(dev);
3954     local = iface->local;
3955 
3956     switch (cmd) {
3957     case PRISM2_IOCTL_INQUIRE:
3958         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3959         else ret = prism2_ioctl_priv_inquire(dev, (int *) wrq->u.name);
3960         break;
3961 
3962     case PRISM2_IOCTL_MONITOR:
3963         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3964         else ret = prism2_ioctl_priv_monitor(dev, (int *) wrq->u.name);
3965         break;
3966 
3967     case PRISM2_IOCTL_RESET:
3968         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3969         else ret = prism2_ioctl_priv_reset(dev, (int *) wrq->u.name);
3970         break;
3971 
3972     case PRISM2_IOCTL_WDS_ADD:
3973         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3974         else ret = prism2_wds_add(local, wrq->u.ap_addr.sa_data, 1);
3975         break;
3976 
3977     case PRISM2_IOCTL_WDS_DEL:
3978         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3979         else ret = prism2_wds_del(local, wrq->u.ap_addr.sa_data, 1, 0);
3980         break;
3981 
3982     case PRISM2_IOCTL_SET_RID_WORD:
3983         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3984         else ret = prism2_ioctl_priv_set_rid_word(dev,
3985                               (int *) wrq->u.name);
3986         break;
3987 
3988 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
3989     case PRISM2_IOCTL_MACCMD:
3990         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3991         else ret = ap_mac_cmd_ioctl(local, (int *) wrq->u.name);
3992         break;
3993 
3994     case PRISM2_IOCTL_ADDMAC:
3995         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
3996         else ret = ap_control_add_mac(&local->ap->mac_restrictions,
3997                           wrq->u.ap_addr.sa_data);
3998         break;
3999     case PRISM2_IOCTL_DELMAC:
4000         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
4001         else ret = ap_control_del_mac(&local->ap->mac_restrictions,
4002                           wrq->u.ap_addr.sa_data);
4003         break;
4004     case PRISM2_IOCTL_KICKMAC:
4005         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
4006         else ret = ap_control_kick_mac(local->ap, local->dev,
4007                            wrq->u.ap_addr.sa_data);
4008         break;
4009 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
4010     default:
4011         ret = -EOPNOTSUPP;
4012         break;
4013     }
4014 
4015     return ret;
4016 }
4017 
4018 /* Private ioctls that are not used with iwpriv;
4019  * in SIOCDEVPRIVATE range */
4020 int hostap_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
4021               void __user *data, int cmd)
4022 {
4023     struct iwreq *wrq = (struct iwreq *)ifr;
4024     struct hostap_interface *iface;
4025     local_info_t *local;
4026     int ret = 0;
4027 
4028     iface = netdev_priv(dev);
4029     local = iface->local;
4030 
4031     if (in_compat_syscall()) /* not implemented yet */
4032         return -EOPNOTSUPP;
4033 
4034     switch (cmd) {
4035 #ifdef PRISM2_DOWNLOAD_SUPPORT
4036     case PRISM2_IOCTL_DOWNLOAD:
4037         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
4038         else ret = prism2_ioctl_priv_download(local, &wrq->u.data);
4039         break;
4040 #endif /* PRISM2_DOWNLOAD_SUPPORT */
4041 
4042     case PRISM2_IOCTL_HOSTAPD:
4043         if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
4044         else ret = prism2_ioctl_priv_hostapd(local, &wrq->u.data);
4045         break;
4046 
4047     default:
4048         ret = -EOPNOTSUPP;
4049         break;
4050     }
4051 
4052     return ret;
4053 }
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