NFS: Don't use GFP_KERNEL in rpcsec_gss downcalls

[safe/jmp/linux-2.6] / net / mac80211 / mesh.h

diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 536d5c0..85562c5 100644 (file)
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 open80211s Ltd.
+ * Copyright (c) 2008, 2009 open80211s Ltd.
  * Authors:    Luis Carlos Cobo <luisca@cozybit.com>
  *             Javier Cardona <javier@cozybit.com>
  *
@@ -26,7 +26,7 @@
  *
  * @MESH_PATH_ACTIVE: the mesh path can be used for forwarding
  * @MESH_PATH_RESOLVING: the discovery process is running for this mesh path
- * @MESH_PATH_DSN_VALID: the mesh path contains a valid destination sequence
+ * @MESH_PATH_SN_VALID: the mesh path contains a valid destination sequence
  *     number
  * @MESH_PATH_FIXED: the mesh path has been manually set and should not be
  *     modified
@@ -38,7 +38,7 @@
 enum mesh_path_flags {
        MESH_PATH_ACTIVE =      BIT(0),
        MESH_PATH_RESOLVING =   BIT(1),
-       MESH_PATH_DSN_VALID =   BIT(2),
+       MESH_PATH_SN_VALID =    BIT(2),
        MESH_PATH_FIXED =       BIT(3),
        MESH_PATH_RESOLVED =    BIT(4),
 };
@@ -53,11 +53,13 @@ enum mesh_path_flags {
  * to grow.
  * @MESH_WORK_GROW_MPP_TABLE: the mesh portals table is full and needs to
  * grow
+ * @MESH_WORK_ROOT: the mesh root station needs to send a frame
  */
 enum mesh_deferred_task_flags {
        MESH_WORK_HOUSEKEEPING,
        MESH_WORK_GROW_MPATH_TABLE,
        MESH_WORK_GROW_MPP_TABLE,
+       MESH_WORK_ROOT,
 };
 
 /**
@@ -70,7 +72,7 @@ enum mesh_deferred_task_flags {
  * @timer: mesh path discovery timer
  * @frame_queue: pending queue for frames sent to this destination while the
  *     path is unresolved
- * @dsn: destination sequence number of the destination
+ * @sn: target sequence number
  * @metric: current metric to this destination
  * @hop_count: hops to destination
  * @exp_time: in jiffies, when the path will expire or when it expired
@@ -94,7 +96,7 @@ struct mesh_path {
        struct timer_list timer;
        struct sk_buff_head frame_queue;
        struct rcu_head rcu;
-       u32 dsn;
+       u32 sn;
        u32 metric;
        u8 hop_count;
        unsigned long exp_time;
@@ -186,8 +188,9 @@ struct mesh_rmc {
  */
 #define MESH_PREQ_MIN_INT      10
 #define MESH_DIAM_TRAVERSAL_TIME 50
-/* Paths will be refreshed if they are closer than PATH_REFRESH_TIME to their
- * expiration
+/* A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds before
+ * timing out.  This way it will remain ACTIVE and no data frames will be
+ * unnecesarily held in the pending queue.
  */
 #define MESH_PATH_REFRESH_TIME                 1000
 #define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME)
@@ -208,11 +211,17 @@ struct mesh_rmc {
 /* Pending ANA approval */
 #define MESH_PLINK_CATEGORY    30
 #define MESH_PATH_SEL_CATEGORY 32
+#define MESH_PATH_SEL_ACTION   0
+
+/* PERR reason codes */
+#define PEER_RCODE_UNSPECIFIED  11
+#define PERR_RCODE_NO_ROUTE     12
+#define PERR_RCODE_DEST_UNREACH 13
 
 /* Public interfaces */
 /* Various */
 int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc,
-               char *da, char *sa);
+                                 const u8 *da, const u8 *sa);
 int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
                struct ieee80211_sub_if_data *sdata, char *addr4,
                char *addr5, char *addr6);
@@ -234,6 +243,7 @@ ieee80211_rx_result
 ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
+void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh);
 
 /* Mesh paths */
 int mesh_nexthop_lookup(struct sk_buff *skb,
@@ -274,8 +284,8 @@ void mesh_mpp_table_grow(void);
 u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata,
                struct mesh_table *tbl);
 /* Mesh paths */
-int mesh_path_error_tx(u8 *dest, __le32 dest_dsn, u8 *ra,
-               struct ieee80211_sub_if_data *sdata);
+int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, __le16 target_rcode,
+                      const u8 *ra, struct ieee80211_sub_if_data *sdata);
 void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta);
 void mesh_path_flush_pending(struct mesh_path *mpath);
 void mesh_path_tx_pending(struct mesh_path *mpath);
@@ -288,6 +298,7 @@ void mesh_path_discard_frame(struct sk_buff *skb,
                struct ieee80211_sub_if_data *sdata);
 void mesh_path_quiesce(struct ieee80211_sub_if_data *sdata);
 void mesh_path_restart(struct ieee80211_sub_if_data *sdata);
+void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata);
 
 extern int mesh_paths_generation;