Enable joining of IBSS (AdHoc) networks

plugins/newwifi.c

Index: plugins/newwifi.c
diff --git a/plugins/newwifi.c b/plugins/newwifi.c
index 7ebc3b691cc941c2a27c9fc4cbb24f325c3254af..8dcdad3582e77c40f223212e9514790b532041f7 100644
--- a/plugins/newwifi.c
+++ b/plugins/newwifi.c
@@ -203,6 +203,14 @@ struct supplicant_scan_request {
 #define	MAX_SSID_LEN	32		/* 802.11 SSID length (octets) */
 
 /*
+ * Supplicant network modes
+ */
+#define SUPPLICANT_NETWORK_MODE_MANAGED 0
+#define SUPPLICANT_NETWORK_MODE_ADHOC 1
+#define SUPPLICANT_NETWORK_MODE_HOSTAP 2
+#define SUPPLICANT_NETWORK_MODE_DEFAULT SUPPLICANT_NETWORK_MODE_MANAGED
+
+/*
  * Per-bss state collected from supplicant scan results.
  */
 struct supplicant_result {
@@ -869,6 +877,34 @@ static void append_wep(DBusMessageIter *dict,
 	    DBUS_TYPE_UINT32, &key_index);
 }
 
+static void append_mode(DBusMessageIter *dict, struct connman_network *network)
+{
+	dbus_int32_t mode_val = SUPPLICANT_NETWORK_MODE_DEFAULT;
+	const char *mode_str = connman_network_get_string(network, "WiFi.Mode");
+
+	if (g_ascii_strcasecmp(mode_str, "managed") == 0)
+		mode_val = SUPPLICANT_NETWORK_MODE_MANAGED;
+	else if (g_ascii_strcasecmp(mode_str, "adhoc") == 0) {
+		/*
+		 * NB: wpa_supplicant does not use scan results for
+		 * configuring IBSS so we need to manually select the
+		 * frequency.
+		 */
+		dbus_int32_t frequency =
+			connman_network_get_uint16(network, "Frequency");
+
+		if (frequency != 0)
+			connman_dbus_dict_append_variant(dict, "frequency",
+							 DBUS_TYPE_INT32,
+							 &frequency);
+		mode_val = SUPPLICANT_NETWORK_MODE_ADHOC;
+	} else if (g_ascii_strcasecmp(mode_str, "hostap") == 0)
+		mode_val = SUPPLICANT_NETWORK_MODE_HOSTAP;
+
+	connman_dbus_dict_append_variant(dict, "mode",
+					 DBUS_TYPE_INT32, &mode_val);
+}
+
 /*
  * Append properties for the specified network to a dbus message.
  */
@@ -910,6 +946,8 @@ static void append_network_properties(struct supplicant_task *task,
 		    DBUS_TYPE_STRING, &key_mgmt);
 	}
 
+	append_mode(&dict, network);
+
 	dbus_message_iter_close_container(array, &dict);
 }