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* mac80211: Consolidate hash kfree-ing in mesh.c.Pavel Emelyanov2008-05-221-6/+9
| | | | | | | | There are already two places, that kfree the mesh_table and its buckets. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Merge error paths in mesh_table_grow().Pavel Emelyanov2008-05-221-12/+4
| | | | | | | | | This is the first (of two) clean ups after the fixes above. The err variable is not even required after this cleaning. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Prepare mesh_table_grow to failing copy_node callback.Pavel Emelyanov2008-05-221-2/+13
| | | | | | | | | | | | The mesh_path_node_copy() performs kmalloc() and thus - may fail (well, it does not now, but I'm fixing this right now). Its caller - the mesh_table_grow() - isn't prepared for such a trick yet. This preparation is just flush the new hash and make copy_node() return an int value. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix incorrect mesh header lengthLuis Carlos Cobo2008-05-131-1/+1
| | | | | | | | This should have been updated at the same time we were transitioning from 3 byte to 4 byte mesh sequence number. Pointed out by Johannes Berg. Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use 4-byte mesh sequence numberLuis Carlos Cobo2008-05-011-12/+5
| | | | | | | 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>
* Revert "mac80211: use a struct for bss->mesh_config"John W. Linville2008-04-081-0/+4
| | | | | | | | | | | | This reverts commit 6c4711b4697d93424e4b1f76a9929ba844d714a5. That patch breaks mesh config comparison between beacons/probe reponses, so every beacon from a mesh network would be added as a new bss. Since the comparison has to be performed for every received beacon I believe it is best to save the mesh config in a format easy to compare, rather than do a bunch of unaligned accesses to compare field by field. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use a struct for bss->mesh_configLuis Carlos Cobo2008-04-011-4/+0
| | | | | | | | This allows cleaner code when accesing bss->mesh_config components. Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add PLINK_ prefix and kernel doc to enum plink_stateLuis Carlos Cobo2008-03-061-3/+3
| | | | | | Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move comment to better locationLuis Carlos Cobo2008-03-061-5/+5
| | | | | | Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: RCU-ify STA info structure accessJohannes Berg2008-03-061-3/+2
| | | | | | | | | | | | | | | This makes access to the STA hash table/list use RCU to protect against freeing of items. However, it's not a true RCU, the copy step is missing: whenever somebody changes a STA item it is simply updated. This is an existing race condition that is now somewhat understandable. This patch also fixes the race key freeing vs. STA destruction by making sure that sta_info_destroy() is always called under RTNL and frees the key. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: clean up mesh codeJohannes Berg2008-03-061-0/+67
| | | | | | | Various cleanups, reducing the #ifdef mess and other things. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: support functions for meshLuis Carlos Cobo2008-03-061-0/+383
The two important features coded in mesh.c are: Recently Multicast Cache: in on-demand HWMP, multicast traffic is retransmitted by every receiving node. Even though a mesh TTL counter avoids infinite loops, it is also necessary to avoid traffic explosion by keeping a cache of multicast mesh frame that have been received recently. With this feature, maximum number of retransmissions of a multicast frame for the case of N nodes within the range of each other would be N. Without it, the maximum number of retransmissions would be in the order of N^(MESH_TTL - 1). Code to support mesh tables. Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>