17 files changed, 95 insertions, 3 deletions

diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c
index 3333d4596b8..c6a55cd12db 100644
--- a/drivers/net/wireless/adm8211.c
+++ b/drivers/net/wireless/adm8211.c
@@ -1884,6 +1884,7 @@ static int __devinit adm8211_probe(struct pci_dev *pdev,
         dev->extra_tx_headroom = sizeof(struct adm8211_tx_hdr);
         /* dev->flags = IEEE80211_HW_RX_INCLUDES_FCS in promisc mode */
         dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
+        dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
 
         dev->channel_change_time = 1000;
         dev->max_signal = 100;    /* FIXME: find better value */
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 7989ab5c2bb..85260c39aa2 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -485,6 +485,12 @@ ath5k_pci_probe(struct pci_dev *pdev,
         hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
                     IEEE80211_HW_SIGNAL_DBM |
                     IEEE80211_HW_NOISE_DBM;
+
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_ADHOC) |
+                BIT(NL80211_IFTYPE_MESH_POINT);
+
         hw->extra_tx_headroom = 2;
         hw->channel_change_time = 5000;
         sc = hw->priv;
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index dc45eef3289..39a4a70d013 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1482,6 +1482,11 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 IEEE80211_HW_SIGNAL_DBM |
                 IEEE80211_HW_NOISE_DBM;
 
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_AP) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_ADHOC);
+
         SET_IEEE80211_DEV(hw, &pdev->dev);
         pci_set_drvdata(pdev, hw);
 
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 63bafc2f3f0..2d915c1a82a 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4569,6 +4569,13 @@ static int b43_wireless_init(struct ssb_device *dev)
                     IEEE80211_HW_SIGNAL_DBM |
                     IEEE80211_HW_NOISE_DBM;
 
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_AP) |
+                BIT(NL80211_IFTYPE_MESH_POINT) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_WDS) |
+                BIT(NL80211_IFTYPE_ADHOC);
+
         hw->queues = b43_modparam_qos ? 4 : 1;
         SET_IEEE80211_DEV(hw, dev->dev);
         if (is_valid_ether_addr(sprom->et1mac))
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 1cb77db5c29..68f63f5093a 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3704,6 +3704,11 @@ static int b43legacy_wireless_init(struct ssb_device *dev)
         hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
                     IEEE80211_HW_SIGNAL_DBM |
                     IEEE80211_HW_NOISE_DBM;
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_AP) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_WDS) |
+                BIT(NL80211_IFTYPE_ADHOC);
         hw->queues = 1; /* FIXME: hardware has more queues */
         SET_IEEE80211_DEV(hw, dev->dev);
         if (is_valid_ether_addr(sprom->et1mac))
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index fbf75a62958..0a511ef8e35 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -819,6 +819,10 @@ int iwl_setup_mac(struct iwl_priv *priv)
         /* Tell mac80211 our characteristics */
         hw->flags = IEEE80211_HW_SIGNAL_DBM |
                     IEEE80211_HW_NOISE_DBM;
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_AP) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_ADHOC);
         /* Default value; 4 EDCA QOS priorities */
         hw->queues = 4;
         /* queues to support 11n aggregation */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index a622fc33590..cee3045f160 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -7888,6 +7888,11 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
         hw->flags = IEEE80211_HW_SIGNAL_DBM |
                     IEEE80211_HW_NOISE_DBM;
 
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_AP) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_ADHOC);
+
         /* 4 EDCA QOS priorities */
         hw->queues = 4;
 
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 732429d4912..6ba50f087f7 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -447,6 +447,9 @@ static int __init init_mac80211_hwsim(void)
 
                 hw->channel_change_time = 1;
                 hw->queues = 4;
+                hw->wiphy->interface_modes =
+                        BIT(NL80211_IFTYPE_STATION) |
+                        BIT(NL80211_IFTYPE_AP);
                 hw->ampdu_queues = 1;
 
                 memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels));
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 17e06bbc996..6da98e6e6a9 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -1072,6 +1072,9 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */
                      IEEE80211_HW_RX_INCLUDES_FCS |
                      IEEE80211_HW_SIGNAL_UNSPEC;
+
+        dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
         dev->channel_change_time = 1000;        /* TODO: find actual value */
         dev->max_signal = 127;
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 369b0b2d864..2f3bfc60688 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1052,6 +1052,11 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
          */
         rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf);
 
+        rt2x00dev->hw->wiphy->interface_modes =
+            BIT(NL80211_IFTYPE_AP) |
+            BIT(NL80211_IFTYPE_STATION) |
+            BIT(NL80211_IFTYPE_ADHOC);
+
         /*
          * Let the driver probe the device to detect the capabilities.
          */
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index 060a2650535..8a42bfa6d4f 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -1184,6 +1184,8 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
                 dev->max_signal = 65;
         }
 
+        dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
         if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
                 printk(KERN_INFO "rtl8187: inconsistency between id with OEM"
                        " info!\n");
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 4d7b98b0503..e019102b228 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -937,6 +937,11 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
         hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
                     IEEE80211_HW_SIGNAL_DB;
 
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_MESH_POINT) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_ADHOC);
+
         hw->max_signal = 100;
         hw->queues = 1;
         hw->extra_tx_headroom = sizeof(struct zd_ctrlset);
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 0c1147de3ec..5e51f4e7600 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -210,6 +210,10 @@ enum nl80211_commands {
  * @NL80211_ATTR_HT_CAPABILITY: HT Capability information element (from
  *      association request when used with NL80211_CMD_NEW_STATION)
  *
+ * @NL80211_ATTR_SUPPORTED_IFTYPES: nested attribute containing all
+ *      supported interface types, each a flag attribute with the number
+ *      of the interface mode.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -259,6 +263,8 @@ enum nl80211_attrs {
 
         NL80211_ATTR_HT_CAPABILITY,
 
+        NL80211_ATTR_SUPPORTED_IFTYPES,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,
diff --git a/include/net/wireless.h b/include/net/wireless.h
index 9324f8dd183..1dc8ec3daa2 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -185,6 +185,9 @@ struct wiphy {
         /* permanent MAC address */
         u8 perm_addr[ETH_ALEN];
 
+        /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
+        u16 interface_modes;
+
         /* If multiple wiphys are registered and you're handed e.g.
          * a regular netdev with assigned ieee80211_ptr, you won't
          * know whether it points to a wiphy your driver has registered
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 638b75f36e2..396cfb2d0f4 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1675,6 +1675,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
                 }
         }
 
+        /* if low-level driver supports AP, we also support VLAN */
+        if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP))
+                local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN);
+
+        /* mac80211 always supports monitor */
+        local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
+
         result = wiphy_register(local->hw.wiphy);
         if (result < 0)
                 return result;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index f1da0b93bc5..7e995ac06a0 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1,7 +1,7 @@
 /*
  * This is the linux wireless configuration interface.
  *
- * Copyright 2006, 2007         Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2008          Johannes Berg <johannes@sipsolutions.net>
  */
 
 #include <linux/if.h>
@@ -259,6 +259,13 @@ int wiphy_register(struct wiphy *wiphy)
         struct ieee80211_supported_band *sband;
         bool have_band = false;
         int i;
+        u16 ifmodes = wiphy->interface_modes;
+
+        /* sanity check ifmodes */
+        WARN_ON(!ifmodes);
+        ifmodes &= ((1 << __NL80211_IFTYPE_AFTER_LAST) - 1) & ~1;
+        if (WARN_ON(ifmodes != wiphy->interface_modes))
+                wiphy->interface_modes = ifmodes;
 
         /* sanity check supported bands/channels */
         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4d6c02afd6f..77880ba8b61 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -113,10 +113,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         struct nlattr *nl_bands, *nl_band;
         struct nlattr *nl_freqs, *nl_freq;
         struct nlattr *nl_rates, *nl_rate;
+        struct nlattr *nl_modes;
         enum ieee80211_band band;
         struct ieee80211_channel *chan;
         struct ieee80211_rate *rate;
         int i;
+        u16 ifmodes = dev->wiphy.interface_modes;
 
         hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
         if (!hdr)
@@ -125,6 +127,20 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
         NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
 
+        nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
+        if (!nl_modes)
+                goto nla_put_failure;
+
+        i = 0;
+        while (ifmodes) {
+                if (ifmodes & 1)
+                        NLA_PUT_FLAG(msg, i);
+                ifmodes >>= 1;
+                i++;
+        }
+
+        nla_nest_end(msg, nl_modes);
+
         nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
         if (!nl_bands)
                 goto nla_put_failure;
@@ -415,7 +431,8 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
         ifindex = dev->ifindex;
         dev_put(dev);
 
-        if (!drv->ops->change_virtual_intf) {
+        if (!drv->ops->change_virtual_intf ||
+            !(drv->wiphy.interface_modes & (1 << type))) {
                 err = -EOPNOTSUPP;
                 goto unlock;
         }
@@ -462,7 +479,8 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
         if (IS_ERR(drv))
                 return PTR_ERR(drv);
 
-        if (!drv->ops->add_virtual_intf) {
+        if (!drv->ops->add_virtual_intf ||
+            !(drv->wiphy.interface_modes & (1 << type))) {
                 err = -EOPNOTSUPP;
                 goto unlock;
         }