wifi: add wifi_utils_get_wowlan()

4 files changed, 58 insertions, 0 deletions

diff --git a/src/platform/wifi/wifi-utils-nl80211.c b/src/platform/wifi/wifi-utils-nl80211.c
index 6da4a5737a..cc4e9bcc4a 100644
--- a/src/platform/wifi/wifi-utils-nl80211.c
+++ b/src/platform/wifi/wifi-utils-nl80211.c
@@ -604,6 +604,43 @@ nla_put_failure:
 }
 #endif
 
+struct nl80211_wowlan_info {
+	gboolean enabled;
+};
+
+static int
+nl80211_wowlan_handler (struct nl_msg *msg, void *arg)
+{
+	struct nlattr *tb[NL80211_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data (nlmsg_hdr (msg));
+	struct nl80211_wowlan_info *info = arg;
+
+	info->enabled = FALSE;
+
+	if (nla_parse (tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		       genlmsg_attrlen (gnlh, 0), NULL) < 0)
+		return NL_SKIP;
+
+	if (tb[NL80211_ATTR_WOWLAN_TRIGGERS])
+		info->enabled = TRUE;
+
+	return NL_SKIP;
+}
+
+static gboolean
+wifi_nl80211_get_wowlan (WifiData *data)
+{
+	WifiDataNl80211 *nl80211 = (WifiDataNl80211 *) data;
+	struct nl_msg *msg;
+	struct nl80211_wowlan_info info;
+
+	msg = nl80211_alloc_msg (nl80211, NL80211_CMD_GET_WOWLAN, 0);
+
+	nl80211_send_and_recv (nl80211, msg, nl80211_wowlan_handler, &info);
+
+	return info.enabled;
+}
+
 struct nl80211_device_info {
 	guint32 *freqs;
 	int num_freqs;
@@ -612,6 +649,7 @@ struct nl80211_device_info {
 	gboolean can_scan_ssid;
 	gboolean supported;
 	gboolean success;
+	gboolean can_wowlan;
 };
 
 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
@@ -770,6 +808,9 @@ static int nl80211_wiphy_info_handler (struct nl_msg *msg, void *arg)
 		}
 	}
 
+	if (tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED])
+		info->can_wowlan = TRUE;
+
 	info->success = TRUE;
 
 	return NL_SKIP;
@@ -860,6 +901,9 @@ wifi_nl80211_init (const char *iface, int ifindex)
 	nl80211->num_freqs = device_info.num_freqs;
 	nl80211->parent.caps = device_info.caps;
 
+	if (device_info.can_wowlan)
+		nl80211->parent.get_wowlan = wifi_nl80211_get_wowlan;
+
 	nm_log_info (LOGD_HW | LOGD_WIFI,
 	             "(%s): using nl80211 for WiFi device control",
 	             nl80211->parent.iface);
diff --git a/src/platform/wifi/wifi-utils-private.h b/src/platform/wifi/wifi-utils-private.h
index 769e25298e..e7601752d0 100644
--- a/src/platform/wifi/wifi-utils-private.h
+++ b/src/platform/wifi/wifi-utils-private.h
@@ -56,6 +56,8 @@ struct WifiData {
 
 	void (*deinit) (WifiData *data);
 
+	gboolean (*get_wowlan) (WifiData *data);
+
 	/* OLPC Mesh-only functions */
 
 	guint32 (*get_mesh_channel) (WifiData *data);
diff --git a/src/platform/wifi/wifi-utils.c b/src/platform/wifi/wifi-utils.c
index 2902d0c8b0..ff48027528 100644
--- a/src/platform/wifi/wifi-utils.c
+++ b/src/platform/wifi/wifi-utils.c
@@ -143,6 +143,15 @@ wifi_utils_get_qual (WifiData *data)
 	return data->get_qual (data);
 }
 
+gboolean
+wifi_utils_get_wowlan (WifiData *data)
+{
+	g_return_val_if_fail (data != NULL, 0);
+	if (!data->get_wowlan)
+		return FALSE;
+	return data->get_wowlan (data);
+}
+
 void
 wifi_utils_deinit (WifiData *data)
 {
diff --git a/src/platform/wifi/wifi-utils.h b/src/platform/wifi/wifi-utils.h
index fa9dc14c61..455e075f5a 100644
--- a/src/platform/wifi/wifi-utils.h
+++ b/src/platform/wifi/wifi-utils.h
@@ -62,6 +62,9 @@ int wifi_utils_get_qual (WifiData *data);
 /* Tells the driver DHCP or SLAAC is running */
 gboolean wifi_utils_indicate_addressing_running (WifiData *data, gboolean running);
 
+/* Returns true if WoWLAN is enabled on device */
+gboolean wifi_utils_get_wowlan (WifiData *data);
+
 
 /* OLPC Mesh-only functions */
 guint32 wifi_utils_get_mesh_channel (WifiData *data);