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Subjectpull request: wireless-2.6 2008-04-30
David,

Here is another volley of fixes for 2.6.26. It all seems fairly
straight-forward.

Thanks,

John

---

Individual patches are available here:

http://www.kernel.org/pub/linux/kernel/people/linville/wireless-2.6/

---

The following changes since commit 809917903127804c2b2ac76342ab0f29f4b394d3:
Pavel Emelyanov (1):
ipv6: Compilation fix for compat MCAST_MSFILTER sockopts.

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master

Harvey Harrison (1):
mac80211: incorrect shift direction

Holger Schurig (1):
libertas: fix use-before-check violation

Johannes Berg (3):
mac80211: assign conf.beacon_control for mesh
mac80211: don't allow invalid WDS peer addresses
mac80211: insert WDS peer after adding interface

Luis Carlos Cobo (1):
mac80211: use 4-byte mesh sequence number

Michael Buesch (1):
b43: Fix dual-PHY devices

drivers/net/wireless/b43/main.c | 8 ++++++
drivers/net/wireless/libertas/scan.c | 3 +-
include/linux/ieee80211.h | 2 +-
net/mac80211/ieee80211_i.h | 2 +-
net/mac80211/main.c | 47 +++++++++++++++++++++-------------
net/mac80211/mesh.c | 17 +++--------
net/mac80211/mesh.h | 2 +-
net/mac80211/tkip.c | 6 +---
8 files changed, 49 insertions(+), 38 deletions(-)

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 94a0cde..1e95c4f 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4326,6 +4326,14 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
err = -EOPNOTSUPP;
goto err_powerdown;
}
+ if (1 /* disable A-PHY */) {
+ /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
+ if (dev->phy.type != B43_PHYTYPE_N) {
+ have_2ghz_phy = 1;
+ have_5ghz_phy = 0;
+ }
+ }
+
dev->phy.gmode = have_2ghz_phy;
tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
b43_wireless_core_reset(dev, tmp);
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index e72c97a..7234669 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -298,7 +298,8 @@ static int lbs_do_scan(struct lbs_private *priv, uint8_t bsstype,
uint8_t *tlv; /* pointer into our current, growing TLV storage area */

lbs_deb_enter_args(LBS_DEB_SCAN, "bsstype %d, chanlist[].chan %d, chan_count %d",
- bsstype, chan_list[0].channumber, chan_count);
+ bsstype, chan_list ? chan_list[0].channumber : -1,
+ chan_count);

/* create the fixed part for scan command */
scan_cmd = kzalloc(MAX_SCAN_CFG_ALLOC, GFP_KERNEL);
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 529f301..0b5e03e 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -113,7 +113,7 @@ struct ieee80211_hdr {
struct ieee80211s_hdr {
u8 flags;
u8 ttl;
- u8 seqnum[3];
+ __le32 seqnum;
u8 eaddr1[6];
u8 eaddr2[6];
u8 eaddr3[6];
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 8e53ce7..c7314bf 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -354,7 +354,7 @@ struct ieee80211_if_sta {
int preq_queue_len;
struct mesh_stats mshstats;
struct mesh_config mshcfg;
- u8 mesh_seqnum[3];
+ u32 mesh_seqnum;
bool accepting_plinks;
#endif
u16 aid;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index e9a9789..9ad4e36 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -255,22 +255,8 @@ static int ieee80211_open(struct net_device *dev)

switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_WDS:
- if (is_zero_ether_addr(sdata->u.wds.remote_addr))
+ if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
return -ENOLINK;
-
- /* Create STA entry for the WDS peer */
- sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
- GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
-
- sta->flags |= WLAN_STA_AUTHORIZED;
-
- res = sta_info_insert(sta);
- if (res) {
- /* STA has been freed */
- return res;
- }
break;
case IEEE80211_IF_TYPE_VLAN:
if (!sdata->u.vlan.ap)
@@ -337,10 +323,8 @@ static int ieee80211_open(struct net_device *dev)
conf.type = sdata->vif.type;
conf.mac_addr = dev->dev_addr;
res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res && !local->open_count && local->ops->stop)
- local->ops->stop(local_to_hw(local));
if (res)
- return res;
+ goto err_stop;

ieee80211_if_config(dev);
ieee80211_reset_erp_info(dev);
@@ -353,9 +337,29 @@ static int ieee80211_open(struct net_device *dev)
netif_carrier_on(dev);
}

+ if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
+ /* Create STA entry for the WDS peer */
+ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+ GFP_KERNEL);
+ if (!sta) {
+ res = -ENOMEM;
+ goto err_del_interface;
+ }
+
+ sta->flags |= WLAN_STA_AUTHORIZED;
+
+ res = sta_info_insert(sta);
+ if (res) {
+ /* STA has been freed */
+ goto err_del_interface;
+ }
+ }
+
if (local->open_count == 0) {
res = dev_open(local->mdev);
WARN_ON(res);
+ if (res)
+ goto err_del_interface;
tasklet_enable(&local->tx_pending_tasklet);
tasklet_enable(&local->tasklet);
}
@@ -390,6 +394,12 @@ static int ieee80211_open(struct net_device *dev)
netif_start_queue(dev);

return 0;
+ err_del_interface:
+ local->ops->remove_interface(local_to_hw(local), &conf);
+ err_stop:
+ if (!local->open_count && local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+ return res;
}

static int ieee80211_stop(struct net_device *dev)
@@ -975,6 +985,7 @@ static int __ieee80211_if_config(struct net_device *dev,
conf.ssid_len = sdata->u.sta.ssid_len;
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
conf.beacon = beacon;
+ conf.beacon_control = control;
ieee80211_start_mesh(dev);
} else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
conf.ssid = sdata->u.ap.ssid;
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 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
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 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
{
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;
}
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 742003d..9f8cb76 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -139,7 +139,7 @@ struct rmc_entry {

struct mesh_rmc {
struct rmc_entry bucket[RMC_BUCKETS];
- u8 idx_mask;
+ u32 idx_mask;
};


diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index dddbfd6..09093da 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -230,10 +230,8 @@ void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,

iv16 = data[hdr_len] << 8;
iv16 += data[hdr_len + 2];
- iv32 = data[hdr_len + 4] +
- (data[hdr_len + 5] >> 8) +
- (data[hdr_len + 6] >> 16) +
- (data[hdr_len + 7] >> 24);
+ iv32 = data[hdr_len + 4] | (data[hdr_len + 5] << 8) |
+ (data[hdr_len + 6] << 16) | (data[hdr_len + 7] << 24);

#ifdef CONFIG_TKIP_DEBUG
printk(KERN_DEBUG "TKIP encrypt: iv16 = 0x%04x, iv32 = 0x%08x\n",
--
John W. Linville
linville@tuxdriver.com

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