#include "mesh.h"
+#ifdef CONFIG_MAC80211_VERBOSE_MHWMP_DEBUG
+#define mhwmp_dbg(fmt, args...) printk(KERN_DEBUG "Mesh HWMP: " fmt, ##args)
+#else
+#define mhwmp_dbg(fmt, args...) do { (void)(0); } while (0)
+#endif
+
#define TEST_FRAME_LEN 8192
#define MAX_METRIC 0xffffffff
#define ARITH_SHIFT 8
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
- mgmt->u.action.u.mesh_action.action_code = action;
+ mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION;
switch (action) {
case MPATH_PREQ:
+ mhwmp_dbg("sending PREQ to %pM\n", dst);
ie_len = 37;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREQ;
break;
case MPATH_PREP:
+ mhwmp_dbg("sending PREP to %pM\n", dst);
ie_len = 31;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREP;
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
- mgmt->u.action.u.mesh_action.action_code = MPATH_PERR;
+ mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION;
ie_len = 12;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PERR;
* @hwmp_ie: hwmp information element (PREP or PREQ)
*
* This function updates the path routing information to the originator and the
- * transmitter of a HWMP PREQ or PREP fram.
+ * transmitter of a HWMP PREQ or PREP frame.
*
* Returns: metric to frame originator or 0 if the frame should not be further
* processed
*/
static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
- u8 *hwmp_ie)
+ u8 *hwmp_ie, enum mpath_frame_type action)
{
struct ieee80211_local *local = sdata->local;
struct mesh_path *mpath;
unsigned long orig_lifetime, exp_time;
u32 last_hop_metric, new_metric;
bool process = true;
- u8 action = mgmt->u.action.u.mesh_action.action_code;
rcu_read_lock();
sta = sta_info_get(local, mgmt->sa);
orig_dsn = PREQ_IE_ORIG_DSN(preq_elem);
dst_flags = PREQ_IE_DST_F(preq_elem);
+ mhwmp_dbg("received PREQ from %pM\n", orig_addr);
+
if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
+ mhwmp_dbg("PREQ is for us\n");
forward = false;
reply = true;
metric = 0;
if (reply) {
lifetime = PREQ_IE_LIFETIME(preq_elem);
ttl = ifmsh->mshcfg.dot11MeshTTL;
- if (ttl != 0)
+ if (ttl != 0) {
+ mhwmp_dbg("replying to the PREQ\n");
mesh_path_sel_frame_tx(MPATH_PREP, 0, dst_addr,
cpu_to_le32(dst_dsn), 0, orig_addr,
cpu_to_le32(orig_dsn), mgmt->sa, 0, ttl,
cpu_to_le32(lifetime), cpu_to_le32(metric),
0, sdata);
- else
+ } else
ifmsh->mshstats.dropped_frames_ttl++;
}
ifmsh->mshstats.dropped_frames_ttl++;
return;
}
+ mhwmp_dbg("forwarding the PREQ from %pM\n", orig_addr);
--ttl;
flags = PREQ_IE_FLAGS(preq_elem);
preq_id = PREQ_IE_PREQ_ID(preq_elem);
u8 next_hop[ETH_ALEN];
u32 dst_dsn, orig_dsn, lifetime;
+ mhwmp_dbg("received PREP from %pM\n", PREP_IE_ORIG_ADDR(prep_elem));
+
/* Note that we divert from the draft nomenclature and denominate
* destination to what the draft refers to as origininator. So in this
* function destnation refers to the final destination of the PREP,
ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
len - baselen, &elems);
- switch (mgmt->u.action.u.mesh_action.action_code) {
- case MPATH_PREQ:
- if (!elems.preq || elems.preq_len != 37)
+ if (elems.preq) {
+ if (elems.preq_len != 37)
/* Right now we support just 1 destination and no AE */
return;
- last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq);
- if (!last_hop_metric)
- return;
- hwmp_preq_frame_process(sdata, mgmt, elems.preq, last_hop_metric);
- break;
- case MPATH_PREP:
- if (!elems.prep || elems.prep_len != 31)
+ last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq,
+ MPATH_PREQ);
+ if (last_hop_metric)
+ hwmp_preq_frame_process(sdata, mgmt, elems.preq,
+ last_hop_metric);
+ }
+ if (elems.prep) {
+ if (elems.prep_len != 31)
/* Right now we support no AE */
return;
- last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep);
- if (!last_hop_metric)
- return;
- hwmp_prep_frame_process(sdata, mgmt, elems.prep, last_hop_metric);
- break;
- case MPATH_PERR:
- if (!elems.perr || elems.perr_len != 12)
+ last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep,
+ MPATH_PREP);
+ if (last_hop_metric)
+ hwmp_prep_frame_process(sdata, mgmt, elems.prep,
+ last_hop_metric);
+ }
+ if (elems.perr) {
+ if (elems.perr_len != 12)
/* Right now we support only one destination per PERR */
return;
hwmp_perr_frame_process(sdata, mgmt, elems.perr);
- default:
- return;
}
}
preq_node = kmalloc(sizeof(struct mesh_preq_queue), GFP_ATOMIC);
if (!preq_node) {
- printk(KERN_DEBUG "Mesh HWMP: could not allocate PREQ node\n");
+ mhwmp_dbg("could not allocate PREQ node\n");
return;
}
spin_unlock(&ifmsh->mesh_preq_queue_lock);
kfree(preq_node);
if (printk_ratelimit())
- printk(KERN_DEBUG "Mesh HWMP: PREQ node queue full\n");
+ mhwmp_dbg("PREQ node queue full\n");
return;
}
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