This patch set implements support for configuring basic rates for ibss network when joining/creating one. First two patches are basically patch proposed by Johannes Berg on linux-wireless posting list split in two. These implement interface to nl80211 to do actual configuration from user space. Last patch impelents removal of the BSS information from the cfg80211 when leaving the IBSS and there is no other active STA's.
Teemu Paasikivi (3):
mac80211: Set basic rates while joining ibss network
mac80211: Set changed basic rates flag
mac80211: remove BSS from cfg80211 list when leaving IBSS
include/net/cfg80211.h | 2 +
net/mac80211/ibss.c | 30 ++++++++++++++++++++++++++-
net/mac80211/ieee80211_i.h | 2 +
net/wireless/nl80211.c | 49 ++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 82 insertions(+), 1 deletions(-)
On Mon, 2010-06-14 at 12:55 +0300, Teemu Paasikivi wrote:
> Remove BSS from cfg80211 BSS list if we are only member in IBSS when
> leaving it.
Thanks, looks good.
Acked-by: Johannes Berg <[email protected]>
Remove BSS from cfg80211 BSS list if we are only member in IBSS when
leaving it.
Signed-off-by: Teemu Paasikivi <[email protected]>
---
net/mac80211/ibss.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index ff91265..59e46ee 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -968,6 +968,31 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
{
struct sk_buff *skb;
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct ieee80211_local *local = sdata->local;
+ struct cfg80211_bss *cbss;
+ u16 capability;
+ int active_ibss = 0;
+
+ active_ibss = ieee80211_sta_active_ibss(sdata);
+
+ if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
+ capability = WLAN_CAPABILITY_IBSS;
+
+ if (ifibss->privacy)
+ capability |= WLAN_CAPABILITY_PRIVACY;
+
+ cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->channel,
+ ifibss->bssid, ifibss->ssid,
+ ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+ WLAN_CAPABILITY_PRIVACY,
+ capability);
+
+ if (cbss) {
+ cfg80211_unlink_bss(local->hw.wiphy, cbss);
+ cfg80211_put_bss(cbss);
+ }
+ }
del_timer_sync(&sdata->u.ibss.timer);
clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
--
1.5.6.3
This patch adds support to nl80211 and mac80211 to set basic rates when
joining/creating ibss network.
Original patch was posted by Johannes Berg on the linux-wireless posting list.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Teemu Paasikivi <[email protected]>
---
include/net/cfg80211.h | 2 +
net/mac80211/ibss.c | 4 ++-
net/mac80211/ieee80211_i.h | 2 +
net/wireless/nl80211.c | 49 ++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 56 insertions(+), 1 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 22ab9d8..64374f4 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -810,6 +810,7 @@ struct cfg80211_disassoc_request {
* @beacon_interval: beacon interval to use
* @privacy: this is a protected network, keys will be configured
* after joining
+ * @basic_rates: bitmap of basic rates to use when creating the IBSS
*/
struct cfg80211_ibss_params {
u8 *ssid;
@@ -818,6 +819,7 @@ struct cfg80211_ibss_params {
u8 *ie;
u8 ssid_len, ie_len;
u16 beacon_interval;
+ u32 basic_rates;
bool channel_fixed;
bool privacy;
};
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index d7a96ce..8be5a96 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -172,6 +172,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
rcu_assign_pointer(ifibss->presp, skb);
sdata->vif.bss_conf.beacon_int = beacon_int;
+ sdata->vif.bss_conf.basic_rates = basic_rates;
bss_change = BSS_CHANGED_BEACON_INT;
bss_change |= ieee80211_reset_erp_info(sdata);
bss_change |= BSS_CHANGED_BSSID;
@@ -529,7 +530,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
sdata->drop_unencrypted = 0;
__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
- ifibss->channel, 3, /* first two are basic */
+ ifibss->channel, ifibss->basic_rates,
capability, 0);
}
@@ -910,6 +911,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.fixed_bssid = false;
sdata->u.ibss.privacy = params->privacy;
+ sdata->u.ibss.basic_rates = params->basic_rates;
sdata->vif.bss_conf.beacon_int = params->beacon_interval;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 4d3883e..fde058b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -393,6 +393,8 @@ struct ieee80211_if_ibss {
unsigned long request;
unsigned long last_scan_completed;
+ u32 basic_rates;
+
bool timer_running;
bool fixed_bssid;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 90ab3c8..324b4a5 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3955,6 +3955,55 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
}
}
+ if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
+ u8 *rates =
+ nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+ int n_rates =
+ nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+ struct ieee80211_supported_band *sband =
+ wiphy->bands[ibss.channel->band];
+ int i, j;
+
+ if (n_rates == 0) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < n_rates; i++) {
+ int rate = (rates[i] & 0x7f) * 5;
+ bool found = false;
+
+ for (j = 0; j < sband->n_bitrates; j++) {
+ if (sband->bitrates[j].bitrate == rate) {
+ found = true;
+ ibss.basic_rates |= BIT(j);
+ break;
+ }
+ }
+ if (!found) {
+ err = -EINVAL;
+ goto out;
+ }
+ }
+ } else {
+ /*
+ * If no rates were explicitly configured,
+ * use the mandatory rate set for 11b or
+ * 11a for maximum compatibility.
+ */
+ struct ieee80211_supported_band *sband =
+ wiphy->bands[ibss.channel->band];
+ int j;
+ u32 flag = ibss.channel->band == IEEE80211_BAND_5GHZ ?
+ IEEE80211_RATE_MANDATORY_A :
+ IEEE80211_RATE_MANDATORY_B;
+
+ for (j = 0; j < sband->n_bitrates; j++) {
+ if (sband->bitrates[j].flags & flag)
+ ibss.basic_rates |= BIT(j);
+ }
+ }
+
err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
out:
--
1.5.6.3
Add changed basic rates flag to bss_changed while joinig ibss network.
This patch is split from the patch containing support for setting basic
rates when creating ibss network. Original patch was posted by Johannes
Berg on the linux-wireless posting list.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Teemu Paasikivi <[email protected]>
---
net/mac80211/ibss.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 8be5a96..ff91265 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -178,6 +178,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
bss_change |= BSS_CHANGED_BSSID;
bss_change |= BSS_CHANGED_BEACON;
bss_change |= BSS_CHANGED_BEACON_ENABLED;
+ bss_change |= BSS_CHANGED_BASIC_RATES;
bss_change |= BSS_CHANGED_IBSS;
sdata->vif.bss_conf.ibss_joined = true;
ieee80211_bss_info_change_notify(sdata, bss_change);
--
1.5.6.3