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cfg80211: allow changing station capabilities for unassociated stations 

Currently, cfg80211 rejects capability updates for existing entries
and as a result it's impossible to update entries that were added
unassociated, but that is necessary to go through the full station
states from userspace, adding a station before authentication etc.

Fix this by allowing updates to capabilities for stations that the
driver (or mac80211) assigned unassociated state. Drivers setting
the full station state support flag must use the new station type
for proper operation.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ayala Beker 2015-09-21 15:49:53 +03:00 committed by Johannes Berg
parent d0a77c6569
commit 47edb11b52
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/net/cfg80211.h
View File

@ -858,6 +858,8 @@ struct station_del_parameters {
/** /**
* enum cfg80211_station_type - the type of station being modified * enum cfg80211_station_type - the type of station being modified
* @CFG80211_STA_AP_CLIENT: client of an AP interface * @CFG80211_STA_AP_CLIENT: client of an AP interface
* @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still
* unassociated (update properties for this type of client is permitted)
* @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
* the AP MLME in the device * the AP MLME in the device
* @CFG80211_STA_AP_STA: AP station on managed interface * @CFG80211_STA_AP_STA: AP station on managed interface
@ -873,6 +875,7 @@ struct station_del_parameters {
*/ */
enum cfg80211_station_type { enum cfg80211_station_type {
CFG80211_STA_AP_CLIENT, CFG80211_STA_AP_CLIENT,
CFG80211_STA_AP_CLIENT_UNASSOC,
CFG80211_STA_AP_MLME_CLIENT, CFG80211_STA_AP_MLME_CLIENT,
CFG80211_STA_AP_STA, CFG80211_STA_AP_STA,
CFG80211_STA_IBSS, CFG80211_STA_IBSS,

7
net/wireless/nl80211.c
View File

@ -4009,7 +4009,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
} }
if (statype != CFG80211_STA_TDLS_PEER_SETUP) { if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
/* reject other things that can't change */ /* reject other things that can't change */
if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
return -EINVAL; return -EINVAL;
@ -4021,7 +4022,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
return -EINVAL; return -EINVAL;
} }
if (statype != CFG80211_STA_AP_CLIENT) { if (statype != CFG80211_STA_AP_CLIENT &&
statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
if (params->vlan) if (params->vlan)
return -EINVAL; return -EINVAL;
} }
@ -4033,6 +4035,7 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
return -EOPNOTSUPP; return -EOPNOTSUPP;
break; break;
case CFG80211_STA_AP_CLIENT: case CFG80211_STA_AP_CLIENT:
case CFG80211_STA_AP_CLIENT_UNASSOC:
/* accept only the listed bits */ /* accept only the listed bits */
if (params->sta_flags_mask & if (params->sta_flags_mask &
~(BIT(NL80211_STA_FLAG_AUTHORIZED) | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |