mac80211: use 4-byte mesh sequence number
This follows the new 802.11s/D2.0 draft.
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 594a335..f76bc26 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*/
+#include <asm/unaligned.h>
#include "ieee80211_i.h"
#include "mesh.h"
@@ -167,8 +168,8 @@
struct rmc_entry *p, *n;
/* Don't care about endianness since only match matters */
- memcpy(&seqnum, mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
- idx = mesh_hdr->seqnum[0] & rmc->idx_mask;
+ memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
+ idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask;
list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) {
++entries;
if (time_after(jiffies, p->exp_time) ||
@@ -393,16 +394,8 @@
{
meshhdr->flags = 0;
meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
-
- meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++;
- meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1];
- meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2];
-
- if (sdata->u.sta.mesh_seqnum[0] == 0) {
- sdata->u.sta.mesh_seqnum[1]++;
- if (sdata->u.sta.mesh_seqnum[1] == 0)
- sdata->u.sta.mesh_seqnum[2]++;
- }
+ put_unaligned(cpu_to_le32(sdata->u.sta.mesh_seqnum), &meshhdr->seqnum);
+ sdata->u.sta.mesh_seqnum++;
return 5;
}