cfg80211: add ap isolation support

This is used to configure APs to not bridge traffic between connected stations.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 2ea3ede..f8750f9 100644 (file)
--- 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,

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5a4efe5..f6b29bf 100644 (file)
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -511,6 +511,7 @@ 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;
@@ -518,6 +519,7 @@ struct bss_parameters {
        int use_short_slot_time;
        u8 *basic_rates;
        u8 basic_rates_len;
+       int ap_isolate;
 };
 
 struct mesh_config {

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index df5505b..c27bef8 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -151,6 +151,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
        [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 */
@@ -2441,6 +2442,7 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
        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 =
@@ -2457,6 +2459,8 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
                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();