This patch enables mac80211 to support the PS challenged mode when
used in master mode.
A new attribute, NL80211_ATTR_WIPHY_AP_PS_CHALLENGED, was added to
nl80211_attrs; also a new member (ap_ps_challenged) was added to
struct wiphy; and nl80211_send_wiphy() was adjusted accordingly.
User space applications (like hostapd) should check the
NL80211_ATTR_WIPHY_AP_PS_CHALLENGED
attribute and display a proper message, if it is set, to inform the
users.
Signed-off-by: Rami Rosen <ramirose@xxxxxxxxx>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 7982734..dbe15e0 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -256,6 +256,9 @@ enum nl80211_commands {
* supported interface types, each a flag attribute with the number
* of the interface mode.
*
+ * @NL80211_ATTR_WIPHY_AP_PS_CHALLENGED: indicates that the wiphy support
+ * for PS is not full.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -316,6 +319,8 @@ enum nl80211_attrs {
NL80211_ATTR_WIPHY_TXQ_PARAMS,
+ NL80211_ATTR_WIPHY_AP_PS_CHALLENGED,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -329,6 +334,7 @@ enum nl80211_attrs {
#define NL80211_ATTR_HT_CAPABILITY NL80211_ATTR_HT_CAPABILITY
#define NL80211_ATTR_BSS_BASIC_RATES NL80211_ATTR_BSS_BASIC_RATES
#define NL80211_ATTR_WIPHY_TXQ_PARAMS NL80211_ATTR_WIPHY_TXQ_PARAMS
+#define NL80211_ATTR_WIPHY_AP_PS_CHALLENGED NL80211_ATTR_WIPHY_AP_PS_CHALLENGED
#define NL80211_MAX_SUPP_RATES 32
#define NL80211_MAX_SUPP_REG_RULES 32
diff --git a/include/net/wireless.h b/include/net/wireless.h
index aedefa5..c7ec68b 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -198,6 +198,8 @@ struct wiphy {
u16 interface_modes;
bool fw_handles_regulatory;
+ /* enable AP (master mode) when the AP is without proper power saving mode */
+ bool ap_ps_challenged;
/* If multiple wiphys are registered and you're handed e.g.
* a regular netdev with assigned ieee80211_ptr, you won't
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 00121ce..73098fe 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -149,6 +149,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg,
u32 pid, u32 seq, int flags,
}
nla_nest_end(msg, nl_modes);
+ if (dev->wiphy.ap_ps_challenged)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_WIPHY_AP_PS_CHALLENGED);
nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
if (!nl_bands)
--
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