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authorJavier Cardona <javier@cozybit.com>2011-04-07 15:08:34 -0700
committerJohn W. Linville <linville@tuxdriver.com>2011-04-12 16:57:39 -0400
commitc93b5e717ec47b57abfe0229360bc11e77520984 (patch)
tree1e6f703c3c1b1c2e55b759b4e992ef04e81f973e /net/wireless
parent96b78dff0321d881ef27d858a462c476e0444619 (diff)
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nl80211: New notification to discover mesh peer candidates.
Notify userspace when a beacon/presp is received from a suitable mesh peer candidate for whom no sta information exists. Userspace can then decide to create a sta info for the candidate. If userspace is not ready to authenticate the peer right away, it can create the sta info with the authenticated flag unset and set it later. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/mesh.c14
-rw-r--r--net/wireless/nl80211.c38
-rw-r--r--net/wireless/nl80211.h4
3 files changed, 56 insertions, 0 deletions
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index e0226e8..5c11608 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -1,5 +1,6 @@
#include <linux/ieee80211.h>
#include <net/cfg80211.h>
+#include "nl80211.h"
#include "core.h"
/* Default values, timeouts in ms */
@@ -110,6 +111,19 @@ int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
return err;
}
+void cfg80211_notify_new_peer_candidate(struct net_device *dev,
+ const u8 *macaddr, const u8* ie, u8 ie_len, gfp_t gfp)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
+ return;
+
+ nl80211_send_new_peer_candidate(wiphy_to_dev(wdev->wiphy), dev,
+ macaddr, ie, ie_len, gfp);
+}
+EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
+
static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
struct net_device *dev)
{
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f4cb8ef..58f501a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5818,6 +5818,44 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
nlmsg_free(msg);
}
+void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev,
+ const u8 *macaddr, const u8* ie, u8 ie_len,
+ gfp_t gfp)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
+ if (ie_len && ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *addr,
enum nl80211_key_type key_type, int key_id,
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index dcac5cd..f2af695 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -50,6 +50,10 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
struct net_device *netdev, u16 reason,
const u8 *ie, size_t ie_len, bool from_ap);
+void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev,
+ const u8 *macaddr, const u8* ie, u8 ie_len,
+ gfp_t gfp);
void
nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *addr,