From ca1accae4543d5df82a2021d6b01032f2ebb436c Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 26 Apr 2010 23:07:44 +0000
Subject: [PATCH] mac80211: add ap isolate support

SVN-Revision: 21178
---
 .../patches/800-cfg80211_ap_isolate.patch     | 66 +++++++++++++++++++
 .../patches/801-mac80211_ap_isolate.patch     | 16 +++++
 .../patches/802-mac80211_cfg_fix.patch        | 23 +++++++
 3 files changed, 105 insertions(+)
 create mode 100644 package/mac80211/patches/800-cfg80211_ap_isolate.patch
 create mode 100644 package/mac80211/patches/801-mac80211_ap_isolate.patch
 create mode 100644 package/mac80211/patches/802-mac80211_cfg_fix.patch

diff --git a/package/mac80211/patches/800-cfg80211_ap_isolate.patch b/package/mac80211/patches/800-cfg80211_ap_isolate.patch
new file mode 100644
index 0000000000..c9a241ace4
--- /dev/null
+++ b/package/mac80211/patches/800-cfg80211_ap_isolate.patch
@@ -0,0 +1,66 @@
+--- a/include/linux/nl80211.h
++++ b/include/linux/nl80211.h
+@@ -709,6 +709,9 @@ enum nl80211_commands {
+  *	NL80211_CMD_AUTHENTICATE, NL80211_CMD_DEAUTHENTICATE,
+  *	NL80211_CMD_DISASSOCIATE.
+  *
++ * @NL80211_ATTR_AP_ISOLATE: (AP mode) Do not forward traffic between stations
++ *	connected to this BSS.
++ *
+  * @NL80211_ATTR_MAX: highest attribute number currently defined
+  * @__NL80211_ATTR_AFTER_LAST: internal use
+  */
+@@ -864,6 +867,8 @@ enum nl80211_attrs {
+ 
+ 	NL80211_ATTR_LOCAL_STATE_CHANGE,
+ 
++	NL80211_ATTR_AP_ISOLATE,
++
+ 	/* add attributes here, update the policy in nl80211.c */
+ 
+ 	__NL80211_ATTR_AFTER_LAST,
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -512,6 +512,7 @@ struct mpath_info {
+  * @basic_rates: basic rates in IEEE 802.11 format
+  *	(or NULL for no change)
+  * @basic_rates_len: number of basic rates
++ * @ap_isolate: do not forward packets between connected stations
+  */
+ struct bss_parameters {
+ 	int use_cts_prot;
+@@ -519,6 +520,7 @@ struct bss_parameters {
+ 	int use_short_slot_time;
+ 	u8 *basic_rates;
+ 	u8 basic_rates_len;
++	int ap_isolate;
+ };
+ 
+ struct mesh_config {
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -154,6 +154,7 @@ static const struct nla_policy nl80211_p
+ 	[NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
+ 	[NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
+ 	[NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
++	[NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
+ };
+ 
+ /* policy for the attributes */
+@@ -2449,6 +2450,7 @@ static int nl80211_set_bss(struct sk_buf
+ 	params.use_cts_prot = -1;
+ 	params.use_short_preamble = -1;
+ 	params.use_short_slot_time = -1;
++	params.ap_isolate = -1;
+ 
+ 	if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
+ 		params.use_cts_prot =
+@@ -2465,6 +2467,8 @@ static int nl80211_set_bss(struct sk_buf
+ 		params.basic_rates_len =
+ 			nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+ 	}
++	if (info->attrs[NL80211_ATTR_AP_ISOLATE])
++		params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
+ 
+ 	rtnl_lock();
+ 
diff --git a/package/mac80211/patches/801-mac80211_ap_isolate.patch b/package/mac80211/patches/801-mac80211_ap_isolate.patch
new file mode 100644
index 0000000000..9bcf1029dc
--- /dev/null
+++ b/package/mac80211/patches/801-mac80211_ap_isolate.patch
@@ -0,0 +1,16 @@
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -1115,6 +1115,13 @@ static int ieee80211_change_bss(struct w
+ 		changed |= BSS_CHANGED_BASIC_RATES;
+ 	}
+ 
++	if (params->ap_isolate >= 0) {
++		if (params->ap_isolate)
++			sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
++		else
++			sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
++	}
++
+ 	ieee80211_bss_info_change_notify(sdata, changed);
+ 
+ 	return 0;
diff --git a/package/mac80211/patches/802-mac80211_cfg_fix.patch b/package/mac80211/patches/802-mac80211_cfg_fix.patch
new file mode 100644
index 0000000000..0ed0b6bd46
--- /dev/null
+++ b/package/mac80211/patches/802-mac80211_cfg_fix.patch
@@ -0,0 +1,23 @@
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -97,9 +97,6 @@ static int ieee80211_change_iface(struct
+ 					    params->mesh_id_len,
+ 					    params->mesh_id);
+ 
+-	if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
+-		return 0;
+-
+ 	if (type == NL80211_IFTYPE_AP_VLAN &&
+ 	    params && params->use_4addr == 0)
+ 		rcu_assign_pointer(sdata->u.vlan.sta, NULL);
+@@ -107,7 +104,9 @@ static int ieee80211_change_iface(struct
+ 		 params && params->use_4addr >= 0)
+ 		sdata->u.mgd.use_4addr = params->use_4addr;
+ 
+-	sdata->u.mntr_flags = *flags;
++	if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
++		sdata->u.mntr_flags = *flags;
++
+ 	return 0;
+ }
+