/* Keep the mean chain length below this constant */
#define MEAN_CHAIN_LEN 2
-#define MPATH_EXPIRED(mpath) ((mpath->flags & MESH_PATH_ACTIVE) && \
- time_after(jiffies, mpath->exp_time) && \
- !(mpath->flags & MESH_PATH_FIXED))
+static inline bool mpath_expired(struct mesh_path *mpath)
+{
+ return (mpath->flags & MESH_PATH_ACTIVE) &&
+ time_after(jiffies, mpath->exp_time) &&
+ !(mpath->flags & MESH_PATH_FIXED);
+}
struct mpath_node {
struct hlist_node list;
return -ENOMEM;
}
-static u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata,
+static u32 mesh_table_hash(const u8 *addr, struct ieee80211_sub_if_data *sdata,
struct mesh_table *tbl)
{
/* Use last four bytes of hw addr and interface index as hash index */
- return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex, tbl->hash_rnd)
- & tbl->hash_mask;
+ return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex,
+ tbl->hash_rnd) & tbl->hash_mask;
}
hdr = (struct ieee80211_hdr *) skb->data;
memcpy(hdr->addr1, sta->sta.addr, ETH_ALEN);
memcpy(hdr->addr2, mpath->sdata->vif.addr, ETH_ALEN);
+ ieee80211_mps_set_frame_flags(sta->sdata, sta, hdr);
}
spin_unlock_irqrestore(&mpath->frame_queue.lock, flags);
}
-static struct mesh_path *mpath_lookup(struct mesh_table *tbl, u8 *dst,
- struct ieee80211_sub_if_data *sdata)
+static struct mesh_path *mpath_lookup(struct mesh_table *tbl, const u8 *dst,
+ struct ieee80211_sub_if_data *sdata)
{
struct mesh_path *mpath;
struct hlist_node *n;
mpath = node->mpath;
if (mpath->sdata == sdata &&
ether_addr_equal(dst, mpath->dst)) {
- if (MPATH_EXPIRED(mpath)) {
+ if (mpath_expired(mpath)) {
spin_lock_bh(&mpath->state_lock);
mpath->flags &= ~MESH_PATH_ACTIVE;
spin_unlock_bh(&mpath->state_lock);
/**
* mesh_path_lookup - look up a path in the mesh path table
- * @dst: hardware address (ETH_ALEN length) of destination
* @sdata: local subif
+ * @dst: hardware address (ETH_ALEN length) of destination
*
* Returns: pointer to the mesh path structure, or NULL if not found
*
* Locking: must be called within a read rcu section.
*/
-struct mesh_path *mesh_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata)
+struct mesh_path *
+mesh_path_lookup(struct ieee80211_sub_if_data *sdata, const u8 *dst)
{
return mpath_lookup(rcu_dereference(mesh_paths), dst, sdata);
}
-struct mesh_path *mpp_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata)
+struct mesh_path *
+mpp_path_lookup(struct ieee80211_sub_if_data *sdata, const u8 *dst)
{
return mpath_lookup(rcu_dereference(mpp_paths), dst, sdata);
}
*
* Locking: must be called within a read rcu section.
*/
-struct mesh_path *mesh_path_lookup_by_idx(int idx, struct ieee80211_sub_if_data *sdata)
+struct mesh_path *
+mesh_path_lookup_by_idx(struct ieee80211_sub_if_data *sdata, int idx)
{
struct mesh_table *tbl = rcu_dereference(mesh_paths);
struct mpath_node *node;
if (sdata && node->mpath->sdata != sdata)
continue;
if (j++ == idx) {
- if (MPATH_EXPIRED(node->mpath)) {
+ if (mpath_expired(node->mpath)) {
spin_lock_bh(&node->mpath->state_lock);
node->mpath->flags &= ~MESH_PATH_ACTIVE;
spin_unlock_bh(&node->mpath->state_lock);
spin_lock_bh(&tbl->gates_lock);
hlist_add_head_rcu(&new_gate->list, tbl->known_gates);
spin_unlock_bh(&tbl->gates_lock);
- rcu_read_unlock();
mpath_dbg(mpath->sdata,
"Mesh path: Recorded new gate: %pM. %d known gates\n",
mpath->dst, mpath->sdata->u.mesh.num_gates);
- return 0;
+ err = 0;
err_rcu:
rcu_read_unlock();
return err;
* @tbl: table which holds our list of known gates
* @mpath: gate mpath
*
- * Returns: 0 on success
- *
* Locking: must be called inside rcu_read_lock() section
*/
-static int mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath)
+static void mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath)
{
struct mpath_node *gate;
struct hlist_node *p, *q;
- hlist_for_each_entry_safe(gate, p, q, tbl->known_gates, list)
- if (gate->mpath == mpath) {
- spin_lock_bh(&tbl->gates_lock);
- hlist_del_rcu(&gate->list);
- kfree_rcu(gate, rcu);
- spin_unlock_bh(&tbl->gates_lock);
- mpath->sdata->u.mesh.num_gates--;
- mpath->is_gate = false;
- mpath_dbg(mpath->sdata,
- "Mesh path: Deleted gate: %pM. %d known gates\n",
- mpath->dst, mpath->sdata->u.mesh.num_gates);
- break;
- }
-
- return 0;
+ hlist_for_each_entry_safe(gate, p, q, tbl->known_gates, list) {
+ if (gate->mpath != mpath)
+ continue;
+ spin_lock_bh(&tbl->gates_lock);
+ hlist_del_rcu(&gate->list);
+ kfree_rcu(gate, rcu);
+ spin_unlock_bh(&tbl->gates_lock);
+ mpath->sdata->u.mesh.num_gates--;
+ mpath->is_gate = false;
+ mpath_dbg(mpath->sdata,
+ "Mesh path: Deleted gate: %pM. %d known gates\n",
+ mpath->dst, mpath->sdata->u.mesh.num_gates);
+ break;
+ }
}
/**
/**
* mesh_path_add - allocate and add a new path to the mesh path table
- * @addr: destination address of the path (ETH_ALEN length)
+ * @dst: destination address of the path (ETH_ALEN length)
* @sdata: local subif
*
* Returns: 0 on success
*
* State: the initial state of the new path is set to 0
*/
-int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
+int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct ieee80211_local *local = sdata->local;
write_unlock_bh(&pathtbl_resize_lock);
}
-int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
+int mpp_path_add(struct ieee80211_sub_if_data *sdata,
+ const u8 *dst, const u8 *mpp)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct ieee80211_local *local = sdata->local;
mpath->flags &= ~MESH_PATH_ACTIVE;
++mpath->sn;
spin_unlock_bh(&mpath->state_lock);
- mesh_path_error_tx(sdata->u.mesh.mshcfg.element_ttl,
- mpath->dst, cpu_to_le32(mpath->sn),
- reason, bcast, sdata);
+ mesh_path_error_tx(sdata,
+ sdata->u.mesh.mshcfg.element_ttl,
+ mpath->dst, cpu_to_le32(mpath->sn),
+ reason, bcast);
}
}
rcu_read_unlock();
*
* Returns: 0 if successful
*/
-int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
+int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr)
{
struct mesh_table *tbl;
struct mesh_path *mpath;
*
* Locking: the function must me called within a rcu_read_lock region
*/
-void mesh_path_discard_frame(struct sk_buff *skb,
- struct ieee80211_sub_if_data *sdata)
+void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
{
kfree_skb(skb);
sdata->u.mesh.mshstats.dropped_frames_no_route++;
struct sk_buff *skb;
while ((skb = skb_dequeue(&mpath->frame_queue)) != NULL)
- mesh_path_discard_frame(skb, mpath->sdata);
+ mesh_path_discard_frame(mpath->sdata, skb);
}
/**
if ((!(mpath->flags & MESH_PATH_RESOLVING)) &&
(!(mpath->flags & MESH_PATH_FIXED)) &&
time_after(jiffies, mpath->exp_time + MESH_PATH_EXPIRE))
- mesh_path_del(mpath->dst, mpath->sdata);
+ mesh_path_del(mpath->sdata, mpath->dst);
}
rcu_read_unlock();
}
projects / karo-tx-linux.git / blobdiff