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cfg80211/mac80211: support reporting wakeup reason

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When waking up from WoWLAN, it is useful to know
what triggered the wakeup. Support reporting the
wakeup reason(s) in cfg80211 (and a pass-through
in mac80211) to allow userspace to know.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-01-22 12:34:29 +01:00
parent 3b144658bc
commit cd8f7cb4e6
6 changed files with 226 additions and 0 deletions
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31
include/uapi/linux/nl80211.h
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@@ -513,6 +513,12 @@
* command with the %NL80211_ATTR_WOWLAN_TRIGGERS attribute. For
* more background information, see
* http://wireless.kernel.org/en/users/Documentation/WoWLAN.
* The @NL80211_CMD_SET_WOWLAN command can also be used as a notification
* from the driver reporting the wakeup reason. In this case, the
* @NL80211_ATTR_WOWLAN_TRIGGERS attribute will contain the reason
* for the wakeup, if it was caused by wireless. If it is not present
* in the wakeup notification, the wireless device didn't cause the
* wakeup but reports that it was woken up.
*
* @NL80211_CMD_SET_REKEY_OFFLOAD: This command is used give the driver
* the necessary information for supporting GTK rekey offload. This
@@ -2947,6 +2953,10 @@ struct nl80211_wowlan_pattern_support {
*
* In %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, it is a binary attribute
* carrying a &struct nl80211_wowlan_pattern_support.
*
* When reporting wakeup. it is a u32 attribute containing the 0-based
* index of the pattern that caused the wakeup, in the patterns passed
* to the kernel when configuring.
* @NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED: Not a real trigger, and cannot be
* used when setting, used only to indicate that GTK rekeying is supported
* by the device (flag)
@@ -2957,8 +2967,25 @@ struct nl80211_wowlan_pattern_support {
* @NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE: wake up on 4-way handshake (flag)
* @NL80211_WOWLAN_TRIG_RFKILL_RELEASE: wake up when rfkill is released
* (on devices that have rfkill in the device) (flag)
* @NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211: For wakeup reporting only, contains
* the 802.11 packet that caused the wakeup, e.g. a deauth frame. The frame
* may be truncated, the @NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN
* attribute contains the original length.
* @NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN: Original length of the 802.11
* packet, may be bigger than the @NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211
* attribute if the packet was truncated somewhere.
* @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023: For wakeup reporting only, contains the
* 802.11 packet that caused the wakeup, e.g. a magic packet. The frame may
* be truncated, the @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN attribute
* contains the original length.
* @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN: Original length of the 802.3
* packet, may be bigger than the @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023
* attribute if the packet was truncated somewhere.
* @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
* @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
*
* These nested attributes are used to configure the wakeup triggers and
* to report the wakeup reason(s).
*/
enum nl80211_wowlan_triggers {
__NL80211_WOWLAN_TRIG_INVALID,
@@ -2971,6 +2998,10 @@ enum nl80211_wowlan_triggers {
NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST,
NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE,
NL80211_WOWLAN_TRIG_RFKILL_RELEASE,
NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211,
NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN,
NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023,
NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN,
/* keep last */
NUM_NL80211_WOWLAN_TRIG,