mac80211: mesh data structures and first mesh changes
Includes integration in struct sta_info of mesh peer link elements, previously
on their own mesh peer link table.
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 790c32f..6b50b6c 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -26,6 +26,9 @@
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
#include "wme.h"
/* privid for wiphys to determine whether they belong to us or not */
@@ -146,6 +149,26 @@
}
EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
+#ifdef CONFIG_MAC80211_MESH
+int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+{
+ int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
+ /* 7.1.3.5a.2 */
+ switch (ae) {
+ case 0:
+ return 5;
+ case 1:
+ return 11;
+ case 2:
+ return 17;
+ case 3:
+ return 23;
+ default:
+ return 5;
+ }
+}
+#endif
+
void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
@@ -395,3 +418,31 @@
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+
+#ifdef CONFIG_MAC80211_MESH
+/**
+ * ieee80211_new_mesh_header - create a new mesh header
+ * @meshhdr: uninitialized mesh header
+ * @sdata: mesh interface to be used
+ *
+ * Return the header length.
+ */
+int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
+ struct ieee80211_sub_if_data *sdata)
+{
+ meshhdr->flags = 0;
+ meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
+
+ meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++;
+ meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1];
+ meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2];
+
+ if (sdata->u.sta.mesh_seqnum[0] == 0) {
+ sdata->u.sta.mesh_seqnum[1]++;
+ if (sdata->u.sta.mesh_seqnum[1] == 0)
+ sdata->u.sta.mesh_seqnum[2]++;
+ }
+
+ return 5;
+}
+#endif