mac80211: update peer link management IE and action frames
Update the length and format of the peer link management action frames.
Signed-off-by: Rui Paulo <rpaulo@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Reviewed-by: Andrey Yurovsky <andrey@cozybit.com>
Tested-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 4188752..8a54bc8 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -18,9 +18,8 @@
#define mpl_dbg(fmt, args...) do { (void)(0); } while (0)
#endif
-#define PLINK_GET_FRAME_SUBTYPE(p) (p)
-#define PLINK_GET_LLID(p) (p + 1)
-#define PLINK_GET_PLID(p) (p + 3)
+#define PLINK_GET_LLID(p) (p + 4)
+#define PLINK_GET_PLID(p) (p + 6)
#define mod_plink_timer(s, t) (mod_timer(&s->plink_timer, \
jiffies + HZ * t / 1000))
@@ -154,6 +153,7 @@
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
bool include_plid = false;
+ static const u8 meshpeeringproto[] = { 0x00, 0x0F, 0xAC, 0x2A };
u8 *pos;
int ie_len;
@@ -171,7 +171,7 @@
memcpy(mgmt->da, da, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
- mgmt->u.action.category = PLINK_CATEGORY;
+ mgmt->u.action.category = MESH_PLINK_CATEGORY;
mgmt->u.action.u.plink_action.action_code = action;
if (action == PLINK_CLOSE)
@@ -189,18 +189,18 @@
/* Add Peer Link Management element */
switch (action) {
case PLINK_OPEN:
- ie_len = 3;
+ ie_len = 6;
break;
case PLINK_CONFIRM:
- ie_len = 5;
+ ie_len = 8;
include_plid = true;
break;
case PLINK_CLOSE:
default:
if (!plid)
- ie_len = 5;
+ ie_len = 8;
else {
- ie_len = 7;
+ ie_len = 10;
include_plid = true;
}
break;
@@ -209,7 +209,8 @@
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PEER_LINK;
*pos++ = ie_len;
- *pos++ = action;
+ memcpy(pos, meshpeeringproto, sizeof(meshpeeringproto));
+ pos += 4;
memcpy(pos, &llid, 2);
if (include_plid) {
pos += 2;
@@ -419,12 +420,13 @@
return;
}
- ftype = *((u8 *)PLINK_GET_FRAME_SUBTYPE(elems.peer_link));
+ ftype = mgmt->u.action.u.plink_action.action_code;
ie_len = elems.peer_link_len;
- if ((ftype == PLINK_OPEN && ie_len != 3) ||
- (ftype == PLINK_CONFIRM && ie_len != 5) ||
- (ftype == PLINK_CLOSE && ie_len != 5 && ie_len != 7)) {
- mpl_dbg("Mesh plink: incorrect plink ie length\n");
+ if ((ftype == PLINK_OPEN && ie_len != 6) ||
+ (ftype == PLINK_CONFIRM && ie_len != 8) ||
+ (ftype == PLINK_CLOSE && ie_len != 8 && ie_len != 10)) {
+ mpl_dbg("Mesh plink: incorrect plink ie length %d %d\n",
+ ftype, ie_len);
return;
}
@@ -436,7 +438,7 @@
* from the point of view of this host.
*/
memcpy(&plid, PLINK_GET_LLID(elems.peer_link), 2);
- if (ftype == PLINK_CONFIRM || (ftype == PLINK_CLOSE && ie_len == 7))
+ if (ftype == PLINK_CONFIRM || (ftype == PLINK_CLOSE && ie_len == 10))
memcpy(&llid, PLINK_GET_PLID(elems.peer_link), 2);
rcu_read_lock();