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mac80211: update peer link management IE and action frames

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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>
This commit is contained in:
Rui Paulo 2009-11-09 23:46:43 +00:00 committed by John W. Linville
parent 23c7a29cd0
commit 0938393f02
4 changed files with 20 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
net/mac80211/mesh.c
View file

@ -553,7 +553,7 @@ static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
struct ieee80211_rx_status *rx_status)
{
switch (mgmt->u.action.category) {
case PLINK_CATEGORY:
case MESH_PLINK_CATEGORY:
mesh_rx_plink_frame(sdata, mgmt, len, rx_status);
break;
case MESH_PATH_SEL_CATEGORY:

2
net/mac80211/mesh.h
View file

@ -206,7 +206,7 @@ struct mesh_rmc {
#define MESH_MAX_MPATHS 1024
/* Pending ANA approval */
#define PLINK_CATEGORY 30
#define MESH_PLINK_CATEGORY 30
#define MESH_PATH_SEL_CATEGORY 32
/* Public interfaces */

32
net/mac80211/mesh_plink.c
View file

@ -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 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
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 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
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 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
/* 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 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
* 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();

2
net/mac80211/rx.c
View file

@ -507,7 +507,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
if (ieee80211_is_action(hdr->frame_control)) {
mgmt = (struct ieee80211_mgmt *)hdr;
if (mgmt->u.action.category != PLINK_CATEGORY)
if (mgmt->u.action.category != MESH_PLINK_CATEGORY)
return RX_DROP_MONITOR;
return RX_CONTINUE;
}