--- /dev/null
+/* IEEE 802.11 SoftMAC layer
+ * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
+ *
+ * Mostly extracted from the rtl8180-sa2400 driver for the
+ * in-kernel generic ieee802.11 stack.
+ *
+ * Some pieces of code might be stolen from ipw2100 driver
+ * copyright of who own it's copyright ;-)
+ *
+ * PS wx handler mostly stolen from hostap, copyright who
+ * own it's copyright ;-)
+ *
+ * released under the GPL
+ */
+
+
+#include <linux/etherdevice.h>
+
+#include "ieee80211.h"
+#include "dot11d.h"
+/* FIXME: add A freqs */
+
+const long ieee80211_wlan_frequencies[] = {
+ 2412, 2417, 2422, 2427,
+ 2432, 2437, 2442, 2447,
+ 2452, 2457, 2462, 2467,
+ 2472, 2484
+};
+EXPORT_SYMBOL(ieee80211_wlan_frequencies);
+
+int ieee80211_wx_set_freq(struct ieee80211_device *ieee, struct iw_request_info *a,
+ union iwreq_data *wrqu, char *b)
+{
+ int ret;
+ struct iw_freq *fwrq = & wrqu->freq;
+
+ down(&ieee->wx_sem);
+
+ if (ieee->iw_mode == IW_MODE_INFRA) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ /* if setting by freq convert to channel */
+ if (fwrq->e == 1) {
+ if ((fwrq->m >= (int) 2.412e8 &&
+ fwrq->m <= (int) 2.487e8)) {
+ int f = fwrq->m / 100000;
+ int c = 0;
+
+ while ((c < 14) && (f != ieee80211_wlan_frequencies[c]))
+ c++;
+
+ /* hack to fall through */
+ fwrq->e = 0;
+ fwrq->m = c + 1;
+ }
+ }
+
+ if (fwrq->e > 0 || fwrq->m > 14 || fwrq->m < 1 ){
+ ret = -EOPNOTSUPP;
+ goto out;
+
+ }else { /* Set the channel */
+
+ if (!(GET_DOT11D_INFO(ieee)->channel_map)[fwrq->m]) {
+ ret = -EINVAL;
+ goto out;
+ }
+ ieee->current_network.channel = fwrq->m;
+ ieee->set_chan(ieee->dev, ieee->current_network.channel);
+
+ if(ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
+ if(ieee->state == IEEE80211_LINKED){
+
+ ieee80211_stop_send_beacons(ieee);
+ ieee80211_start_send_beacons(ieee);
+ }
+ }
+
+ ret = 0;
+out:
+ up(&ieee->wx_sem);
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_freq);
+
+int ieee80211_wx_get_freq(struct ieee80211_device *ieee,
+ struct iw_request_info *a,
+ union iwreq_data *wrqu, char *b)
+{
+ struct iw_freq *fwrq = & wrqu->freq;
+
+ if (ieee->current_network.channel == 0)
+ return -1;
+ //NM 0.7.0 will not accept channel any more.
+ fwrq->m = ieee80211_wlan_frequencies[ieee->current_network.channel-1] * 100000;
+ fwrq->e = 1;
+// fwrq->m = ieee->current_network.channel;
+// fwrq->e = 0;
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_get_freq);
+
+int ieee80211_wx_get_wap(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ unsigned long flags;
+
+ wrqu->ap_addr.sa_family = ARPHRD_ETHER;
+
+ if (ieee->iw_mode == IW_MODE_MONITOR)
+ return -1;
+
+ /* We want avoid to give to the user inconsistent infos*/
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (ieee->state != IEEE80211_LINKED &&
+ ieee->state != IEEE80211_LINKED_SCANNING &&
+ ieee->wap_set == 0)
+
+ eth_zero_addr(wrqu->ap_addr.sa_data);
+ else
+ memcpy(wrqu->ap_addr.sa_data,
+ ieee->current_network.bssid, ETH_ALEN);
+
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_get_wap);
+
+int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *awrq,
+ char *extra)
+{
+
+ int ret = 0;
+ unsigned long flags;
+
+ short ifup = ieee->proto_started;//dev->flags & IFF_UP;
+ struct sockaddr *temp = (struct sockaddr *)awrq;
+
+ ieee->sync_scan_hurryup = 1;
+
+ down(&ieee->wx_sem);
+ /* use ifconfig hw ether */
+ if (ieee->iw_mode == IW_MODE_MASTER) {
+ ret = -1;
+ goto out;
+ }
+
+ if (temp->sa_family != ARPHRD_ETHER) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (ifup)
+ ieee80211_stop_protocol(ieee);
+
+ /* just to avoid to give inconsistent infos in the
+ * get wx method. not really needed otherwise
+ */
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
+ ieee->wap_set = !is_zero_ether_addr(temp->sa_data);
+
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+ if (ifup)
+ ieee80211_start_protocol(ieee);
+out:
+ up(&ieee->wx_sem);
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_wap);
+
+ int ieee80211_wx_get_essid(struct ieee80211_device *ieee, struct iw_request_info *a,union iwreq_data *wrqu,char *b)
+{
+ int len, ret = 0;
+ unsigned long flags;
+
+ if (ieee->iw_mode == IW_MODE_MONITOR)
+ return -1;
+
+ /* We want avoid to give to the user inconsistent infos*/
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (ieee->current_network.ssid[0] == '\0' ||
+ ieee->current_network.ssid_len == 0){
+ ret = -1;
+ goto out;
+ }
+
+ if (ieee->state != IEEE80211_LINKED &&
+ ieee->state != IEEE80211_LINKED_SCANNING &&
+ ieee->ssid_set == 0){
+ ret = -1;
+ goto out;
+ }
+ len = ieee->current_network.ssid_len;
+ wrqu->essid.length = len;
+ strncpy(b, ieee->current_network.ssid, len);
+ wrqu->essid.flags = 1;
+
+out:
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+ return ret;
+
+}
+EXPORT_SYMBOL(ieee80211_wx_get_essid);
+
+int ieee80211_wx_set_rate(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+
+ u32 target_rate = wrqu->bitrate.value;
+
+ ieee->rate = target_rate/100000;
+ //FIXME: we might want to limit rate also in management protocols.
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_rate);
+
+int ieee80211_wx_get_rate(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ u32 tmp_rate;
+ tmp_rate = TxCountToDataRate(ieee, ieee->softmac_stats.CurrentShowTxate);
+
+ wrqu->bitrate.value = tmp_rate * 500000;
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_get_rate);
+
+int ieee80211_wx_set_rts(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ if (wrqu->rts.disabled || !wrqu->rts.fixed)
+ ieee->rts = DEFAULT_RTS_THRESHOLD;
+ else
+ {
+ if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
+ wrqu->rts.value > MAX_RTS_THRESHOLD)
+ return -EINVAL;
+ ieee->rts = wrqu->rts.value;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_rts);
+
+int ieee80211_wx_get_rts(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ wrqu->rts.value = ieee->rts;
+ wrqu->rts.fixed = 0; /* no auto select */
+ wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_get_rts);
+
+int ieee80211_wx_set_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
+ union iwreq_data *wrqu, char *b)
+{
+
+ ieee->sync_scan_hurryup = 1;
+
+ down(&ieee->wx_sem);
+
+ if (wrqu->mode == ieee->iw_mode)
+ goto out;
+
+ if (wrqu->mode == IW_MODE_MONITOR){
+
+ ieee->dev->type = ARPHRD_IEEE80211;
+ }else{
+ ieee->dev->type = ARPHRD_ETHER;
+ }
+
+ if (!ieee->proto_started){
+ ieee->iw_mode = wrqu->mode;
+ }else{
+ ieee80211_stop_protocol(ieee);
+ ieee->iw_mode = wrqu->mode;
+ ieee80211_start_protocol(ieee);
+ }
+
+out:
+ up(&ieee->wx_sem);
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_mode);
+
+void ieee80211_wx_sync_scan_wq(struct work_struct *work)
+{
+ struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wx_sync_scan_wq);
+ short chan;
+ HT_EXTCHNL_OFFSET chan_offset=0;
+ HT_CHANNEL_WIDTH bandwidth=0;
+ int b40M = 0;
+ static int count;
+ chan = ieee->current_network.channel;
+ netif_carrier_off(ieee->dev);
+
+ if (ieee->data_hard_stop)
+ ieee->data_hard_stop(ieee->dev);
+
+ ieee80211_stop_send_beacons(ieee);
+
+ ieee->state = IEEE80211_LINKED_SCANNING;
+ ieee->link_change(ieee->dev);
+ ieee->InitialGainHandler(ieee->dev, IG_Backup);
+ if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT && ieee->pHTInfo->bCurBW40MHz) {
+ b40M = 1;
+ chan_offset = ieee->pHTInfo->CurSTAExtChnlOffset;
+ bandwidth = (HT_CHANNEL_WIDTH)ieee->pHTInfo->bCurBW40MHz;
+ printk("Scan in 40M, force to 20M first:%d, %d\n", chan_offset, bandwidth);
+ ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
+ }
+ ieee80211_start_scan_syncro(ieee);
+ if (b40M) {
+ printk("Scan in 20M, back to 40M\n");
+ if (chan_offset == HT_EXTCHNL_OFFSET_UPPER)
+ ieee->set_chan(ieee->dev, chan + 2);
+ else if (chan_offset == HT_EXTCHNL_OFFSET_LOWER)
+ ieee->set_chan(ieee->dev, chan - 2);
+ else
+ ieee->set_chan(ieee->dev, chan);
+ ieee->SetBWModeHandler(ieee->dev, bandwidth, chan_offset);
+ } else {
+ ieee->set_chan(ieee->dev, chan);
+ }
+
+ ieee->InitialGainHandler(ieee->dev, IG_Restore);
+ ieee->state = IEEE80211_LINKED;
+ ieee->link_change(ieee->dev);
+ // To prevent the immediately calling watch_dog after scan.
+ if (ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
+ {
+ ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
+ ieee->LinkDetectInfo.NumRecvDataInPeriod= 1;
+ }
+ if (ieee->data_hard_resume)
+ ieee->data_hard_resume(ieee->dev);
+
+ if(ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
+ ieee80211_start_send_beacons(ieee);
+
+ netif_carrier_on(ieee->dev);
+ count = 0;
+ up(&ieee->wx_sem);
+
+}
+
+int ieee80211_wx_set_scan(struct ieee80211_device *ieee, struct iw_request_info *a,
+ union iwreq_data *wrqu, char *b)
+{
+ int ret = 0;
+
+ down(&ieee->wx_sem);
+
+ if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)) {
+ ret = -1;
+ goto out;
+ }
+
+ if (ieee->state == IEEE80211_LINKED) {
+ queue_work(ieee->wq, &ieee->wx_sync_scan_wq);
+ /* intentionally forget to up sem */
+ return 0;
+ }
+
+out:
+ up(&ieee->wx_sem);
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_scan);
+
+int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
+ struct iw_request_info *a,
+ union iwreq_data *wrqu, char *extra)
+{
+
+ int ret=0,len;
+ short proto_started;
+ unsigned long flags;
+
+ ieee->sync_scan_hurryup = 1;
+ down(&ieee->wx_sem);
+
+ proto_started = ieee->proto_started;
+
+ if (wrqu->essid.length > IW_ESSID_MAX_SIZE) {
+ ret= -E2BIG;
+ goto out;
+ }
+
+ if (ieee->iw_mode == IW_MODE_MONITOR) {
+ ret= -1;
+ goto out;
+ }
+
+ if(proto_started)
+ ieee80211_stop_protocol(ieee);
+
+
+ /* this is just to be sure that the GET wx callback
+ * has consisten infos. not needed otherwise
+ */
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (wrqu->essid.flags && wrqu->essid.length) {
+ //first flush current network.ssid
+ len = ((wrqu->essid.length-1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length-1) : IW_ESSID_MAX_SIZE;
+ strncpy(ieee->current_network.ssid, extra, len+1);
+ ieee->current_network.ssid_len = len+1;
+ ieee->ssid_set = 1;
+ }
+ else{
+ ieee->ssid_set = 0;
+ ieee->current_network.ssid[0] = '\0';
+ ieee->current_network.ssid_len = 0;
+ }
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+ if (proto_started)
+ ieee80211_start_protocol(ieee);
+out:
+ up(&ieee->wx_sem);
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_essid);
+
+ int ieee80211_wx_get_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
+ union iwreq_data *wrqu, char *b)
+{
+
+ wrqu->mode = ieee->iw_mode;
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_get_mode);
+
+ int ieee80211_wx_set_rawtx(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+
+ int *parms = (int *)extra;
+ int enable = (parms[0] > 0);
+ short prev = ieee->raw_tx;
+
+ down(&ieee->wx_sem);
+
+ if(enable)
+ ieee->raw_tx = 1;
+ else
+ ieee->raw_tx = 0;
+
+ printk(KERN_INFO"raw TX is %s\n",
+ ieee->raw_tx ? "enabled" : "disabled");
+
+ if (ieee->iw_mode == IW_MODE_MONITOR)
+ {
+ if (prev == 0 && ieee->raw_tx) {
+ if (ieee->data_hard_resume)
+ ieee->data_hard_resume(ieee->dev);
+
+ netif_carrier_on(ieee->dev);
+ }
+
+ if(prev && ieee->raw_tx == 1)
+ netif_carrier_off(ieee->dev);
+ }
+
+ up(&ieee->wx_sem);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_set_rawtx);
+
+int ieee80211_wx_get_name(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ strlcpy(wrqu->name, "802.11", IFNAMSIZ);
+ if (ieee->modulation & IEEE80211_CCK_MODULATION) {
+ strlcat(wrqu->name, "b", IFNAMSIZ);
+ if (ieee->modulation & IEEE80211_OFDM_MODULATION)
+ strlcat(wrqu->name, "/g", IFNAMSIZ);
+ } else if (ieee->modulation & IEEE80211_OFDM_MODULATION) {
+ strlcat(wrqu->name, "g", IFNAMSIZ);
+ }
+
+ if (ieee->mode & (IEEE_N_24G | IEEE_N_5G))
+ strlcat(wrqu->name, "/n", IFNAMSIZ);
+
+ if ((ieee->state == IEEE80211_LINKED) ||
+ (ieee->state == IEEE80211_LINKED_SCANNING))
+ strlcat(wrqu->name, " linked", IFNAMSIZ);
+ else if (ieee->state != IEEE80211_NOLINK)
+ strlcat(wrqu->name, " link..", IFNAMSIZ);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_wx_get_name);
+
+/* this is mostly stolen from hostap */
+int ieee80211_wx_set_power(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ int ret = 0;
+ down(&ieee->wx_sem);
+
+ if (wrqu->power.disabled) {
+ ieee->ps = IEEE80211_PS_DISABLED;
+ goto exit;
+ }
+ if (wrqu->power.flags & IW_POWER_TIMEOUT) {
+ //ieee->ps_period = wrqu->power.value / 1000;
+ ieee->ps_timeout = wrqu->power.value / 1000;
+ }
+
+ if (wrqu->power.flags & IW_POWER_PERIOD) {
+
+ //ieee->ps_timeout = wrqu->power.value / 1000;
+ ieee->ps_period = wrqu->power.value / 1000;
+ //wrq->value / 1024;
+
+ }
+ switch (wrqu->power.flags & IW_POWER_MODE) {
+ case IW_POWER_UNICAST_R:
+ ieee->ps = IEEE80211_PS_UNICAST;
+ break;
+ case IW_POWER_MULTICAST_R:
+ ieee->ps = IEEE80211_PS_MBCAST;
+ break;
+ case IW_POWER_ALL_R:
+ ieee->ps = IEEE80211_PS_UNICAST | IEEE80211_PS_MBCAST;
+ break;
+
+ case IW_POWER_ON:
+ // ieee->ps = IEEE80211_PS_DISABLED;
+ break;
+
+ default:
+ ret = -EINVAL;
+ goto exit;
+
+ }
+exit:
+ up(&ieee->wx_sem);
+ return ret;
+
+}
+EXPORT_SYMBOL(ieee80211_wx_set_power);
+
+/* this is stolen from hostap */
+int ieee80211_wx_get_power(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ down(&ieee->wx_sem);
+
+ if (ieee->ps == IEEE80211_PS_DISABLED) {
+ wrqu->power.disabled = 1;
+ goto exit;
+ }
+
+ wrqu->power.disabled = 0;
+
+ if ((wrqu->power.flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
+ wrqu->power.flags = IW_POWER_TIMEOUT;
+ wrqu->power.value = ieee->ps_timeout * 1000;
+ } else {
+// ret = -EOPNOTSUPP;
+// goto exit;
+ wrqu->power.flags = IW_POWER_PERIOD;
+ wrqu->power.value = ieee->ps_period * 1000;
+//ieee->current_network.dtim_period * ieee->current_network.beacon_interval * 1024;
+ }
+
+ if ((ieee->ps & (IEEE80211_PS_MBCAST | IEEE80211_PS_UNICAST)) == (IEEE80211_PS_MBCAST | IEEE80211_PS_UNICAST))
+ wrqu->power.flags |= IW_POWER_ALL_R;
+ else if (ieee->ps & IEEE80211_PS_MBCAST)
+ wrqu->power.flags |= IW_POWER_MULTICAST_R;
+ else
+ wrqu->power.flags |= IW_POWER_UNICAST_R;
+
+exit:
+ up(&ieee->wx_sem);
+ return 0;
+
+}
+EXPORT_SYMBOL(ieee80211_wx_get_power);
Code Review / kvmfornfv.git / blobdiff