cfg80211: rework key operation

This reworks the key operation in cfg80211, and now only
allows, from userspace, configuring keys (via nl80211)
after the connection has been established (in managed
mode), the IBSS been joined (in IBSS mode), at any time
(in AP[_VLAN] modes) or never for all the other modes.

In order to do shared key authentication correctly, it
is now possible to give a WEP key to the AUTH command.
To configure static WEP keys, these are given to the
CONNECT or IBSS_JOIN command directly, for a userspace
SME it is assumed it will configure it properly after
the connection has been established.

Since mac80211 used to check the default key in IBSS
mode to see whether or not the network is protected,
it needs an update in that area, as well as an update
to make use of the WEP key passed to auth() for shared
key authentication.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 48e0913c2209..b043b78dd2c3 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -569,6 +569,9 @@ enum nl80211_commands {
  *
  * @NL80211_ATTR_KEY: key information in a nested attribute with
  *      %NL80211_KEY_* sub-attributes
+ * @NL80211_ATTR_KEYS: array of keys for static WEP keys for connect()
+ *      and join_ibss(), key information is in a nested attribute each
+ *      with %NL80211_KEY_* sub-attributes
  *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
@@ -696,6 +699,7 @@ enum nl80211_attrs {
         NL80211_ATTR_PREV_BSSID,
 
         NL80211_ATTR_KEY,
+        NL80211_ATTR_KEYS,
 
         /* add attributes here, update the policy in nl80211.c */
 
@@ -726,6 +730,7 @@ enum nl80211_attrs {
 #define NL80211_ATTR_WPA_VERSIONS NL80211_ATTR_WPA_VERSIONS
 #define NL80211_ATTR_AKM_SUITES NL80211_ATTR_AKM_SUITES
 #define NL80211_ATTR_KEY NL80211_ATTR_KEY
+#define NL80211_ATTR_KEYS NL80211_ATTR_KEYS
 
 #define NL80211_MAX_SUPP_RATES                  32
 #define NL80211_MAX_SUPP_REG_RULES              32