struct cfg80211_internal_bss *bss;
bss = container_of(ref, struct cfg80211_internal_bss, ref);
+ if (bss->pub.free_priv)
+ bss->pub.free_priv(&bss->pub);
kfree(bss);
}
/* must hold dev->bss_lock! */
+void cfg80211_bss_age(struct cfg80211_registered_device *dev,
+ unsigned long age_secs)
+{
+ struct cfg80211_internal_bss *bss;
+ unsigned long age_jiffies = msecs_to_jiffies(age_secs * MSEC_PER_SEC);
+
+ list_for_each_entry(bss, &dev->bss_list, list) {
+ bss->ts -= age_jiffies;
+ }
+}
+
+/* must hold dev->bss_lock! */
void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
{
struct cfg80211_internal_bss *bss, *tmp;
bool expired = false;
list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
- if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
+ if (bss->hold ||
+ !time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
continue;
list_del(&bss->list);
rb_erase(&bss->rbn, &dev->bss_tree);
{
const u8 *ssidie;
- if (compare_ether_addr(a->bssid, bssid))
+ if (bssid && compare_ether_addr(a->bssid, bssid))
return false;
+ if (!ssid)
+ return true;
+
ssidie = find_ie(WLAN_EID_SSID,
a->information_elements,
a->len_information_elements);
struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
const u8 *bssid,
- const u8 *ssid, size_t ssid_len)
+ const u8 *ssid, size_t ssid_len,
+ u16 capa_mask, u16 capa_val)
{
struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
struct cfg80211_internal_bss *bss, *res = NULL;
spin_lock_bh(&dev->bss_lock);
list_for_each_entry(bss, &dev->bss_list, list) {
+ if ((bss->pub.capability & capa_mask) != capa_val)
+ continue;
if (channel && bss->pub.channel != channel)
continue;
if (is_bss(&bss->pub, bssid, ssid, ssid_len)) {
found->pub.beacon_interval = res->pub.beacon_interval;
found->pub.tsf = res->pub.tsf;
found->pub.signal = res->pub.signal;
- found->pub.signal_type = res->pub.signal_type;
found->pub.capability = res->pub.capability;
found->ts = res->ts;
kref_put(&res->ref, bss_release);
cfg80211_inform_bss_frame(struct wiphy *wiphy,
struct ieee80211_channel *channel,
struct ieee80211_mgmt *mgmt, size_t len,
- s32 signal, enum cfg80211_signal_type sigtype,
- gfp_t gfp)
+ s32 signal, gfp_t gfp)
{
struct cfg80211_internal_bss *res;
size_t ielen = len - offsetof(struct ieee80211_mgmt,
bool overwrite;
size_t privsz = wiphy->bss_priv_size;
- if (WARN_ON(sigtype == NL80211_BSS_SIGNAL_UNSPEC &&
+ if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC &&
(signal < 0 || signal > 100)))
return NULL;
memcpy(res->pub.bssid, mgmt->bssid, ETH_ALEN);
res->pub.channel = channel;
- res->pub.signal_type = sigtype;
res->pub.signal = signal;
res->pub.tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
res->pub.beacon_interval = le16_to_cpu(mgmt->u.probe_resp.beacon_int);
if (!res)
return NULL;
+ if (res->pub.capability & WLAN_CAPABILITY_ESS)
+ regulatory_hint_found_beacon(wiphy, channel, gfp);
+
/* cfg80211_bss_update gives us a referenced result */
return &res->pub;
}
}
EXPORT_SYMBOL(cfg80211_put_bss);
+void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
+{
+ struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
+ struct cfg80211_internal_bss *bss;
+
+ if (WARN_ON(!pub))
+ return;
+
+ bss = container_of(pub, struct cfg80211_internal_bss, pub);
+
+ spin_lock_bh(&dev->bss_lock);
+
+ list_del(&bss->list);
+ rb_erase(&bss->rbn, &dev->bss_tree);
+
+ spin_unlock_bh(&dev->bss_lock);
+
+ kref_put(&bss->ref, bss_release);
+}
+EXPORT_SYMBOL(cfg80211_unlink_bss);
+
+void cfg80211_hold_bss(struct cfg80211_bss *pub)
+{
+ struct cfg80211_internal_bss *bss;
+
+ if (!pub)
+ return;
+
+ bss = container_of(pub, struct cfg80211_internal_bss, pub);
+ bss->hold = true;
+}
+EXPORT_SYMBOL(cfg80211_hold_bss);
+
+void cfg80211_unhold_bss(struct cfg80211_bss *pub)
+{
+ struct cfg80211_internal_bss *bss;
+
+ if (!pub)
+ return;
+
+ bss = container_of(pub, struct cfg80211_internal_bss, pub);
+ bss->hold = false;
+}
+EXPORT_SYMBOL(cfg80211_unhold_bss);
+
#ifdef CONFIG_WIRELESS_EXT
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
}
}
+static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
+{
+ unsigned long end = jiffies;
+
+ if (end >= start)
+ return jiffies_to_msecs(end - start);
+
+ return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
+}
static char *
-ieee80211_bss(struct iw_request_info *info,
- struct cfg80211_internal_bss *bss,
- char *current_ev, char *end_buf)
+ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
+ struct cfg80211_internal_bss *bss, char *current_ev,
+ char *end_buf)
{
struct iw_event iwe;
u8 *buf, *cfg, *p;
u8 *ie = bss->pub.information_elements;
- int rem = bss->pub.len_information_elements, i;
+ int rem = bss->pub.len_information_elements, i, sig;
bool ismesh = false;
memset(&iwe, 0, sizeof(iwe));
current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
IW_EV_FREQ_LEN);
- if (bss->pub.signal_type != CFG80211_SIGNAL_TYPE_NONE) {
+ if (wiphy->signal_type != CFG80211_SIGNAL_TYPE_NONE) {
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = IW_QUAL_LEVEL_UPDATED |
IW_QUAL_NOISE_INVALID |
- IW_QUAL_QUAL_INVALID;
- switch (bss->pub.signal_type) {
+ IW_QUAL_QUAL_UPDATED;
+ switch (wiphy->signal_type) {
case CFG80211_SIGNAL_TYPE_MBM:
- iwe.u.qual.level = bss->pub.signal / 100;
+ sig = bss->pub.signal / 100;
+ iwe.u.qual.level = sig;
iwe.u.qual.updated |= IW_QUAL_DBM;
+ if (sig < -110) /* rather bad */
+ sig = -110;
+ else if (sig > -40) /* perfect */
+ sig = -40;
+ /* will give a range of 0 .. 70 */
+ iwe.u.qual.qual = sig + 110;
break;
case CFG80211_SIGNAL_TYPE_UNSPEC:
iwe.u.qual.level = bss->pub.signal;
+ /* will give range 0 .. 100 */
+ iwe.u.qual.qual = bss->pub.signal;
break;
default:
/* not reached */
&iwe, buf);
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = IWEVCUSTOM;
- sprintf(buf, " Last beacon: %dms ago",
- jiffies_to_msecs(jiffies - bss->ts));
+ sprintf(buf, " Last beacon: %ums ago",
+ elapsed_jiffies_msecs(bss->ts));
iwe.u.data.length = strlen(buf);
current_ev = iwe_stream_add_point(info, current_ev,
end_buf, &iwe, buf);
spin_unlock_bh(&dev->bss_lock);
return -E2BIG;
}
- current_ev = ieee80211_bss(info, bss,
- current_ev, end_buf);
+ current_ev = ieee80211_bss(&dev->wiphy, info, bss,
+ current_ev, end_buf);
}
spin_unlock_bh(&dev->bss_lock);
return current_ev - buf;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff