huawei: ignore ^NDISSTAT unsolicited messages

These messages give us information about the current connection status in the
NDIS interface. We already have other means to know this status, so we just
ignore the unsolicited message for now.

E.g.:
    ^NDISSTAT: 1,,,"IPV4"

1 files changed, 8 insertions, 0 deletions

diff --git a/plugins/huawei/mm-broadband-modem-huawei.c b/plugins/huawei/mm-broadband-modem-huawei.c
index 4a964d87..d9895246 100644
--- a/plugins/huawei/mm-broadband-modem-huawei.c
+++ b/plugins/huawei/mm-broadband-modem-huawei.c
@@ -86,6 +86,7 @@ struct _MMBroadbandModemHuaweiPrivate {
     GRegex *srvst_regex;
     GRegex *stin_regex;
     GRegex *hcsq_regex;
+    GRegex *ndisstat_regex;
 
     NdisdupSupport ndisdup_support;
 };
@@ -2173,6 +2174,10 @@ set_ignored_unsolicited_events_handlers (MMBroadbandModemHuawei *self)
             ports[i],
             self->priv->hcsq_regex,
             NULL, NULL, NULL);
+        mm_at_serial_port_add_unsolicited_msg_handler (
+            ports[i],
+            self->priv->ndisstat_regex,
+            NULL, NULL, NULL);
     }
 }
 
@@ -2242,6 +2247,8 @@ mm_broadband_modem_huawei_init (MMBroadbandModemHuawei *self)
                                           G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
     self->priv->hcsq_regex = g_regex_new ("\\r\\n\\^HCSQ:.+\\r+\\n",
                                           G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
+    self->priv->ndisstat_regex = g_regex_new ("\\r\\n\\^NDISSTAT:.+\\r+\\n",
+                                              G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
 
     self->priv->ndisdup_support = NDISDUP_SUPPORT_UNKNOWN;
 }
@@ -2262,6 +2269,7 @@ finalize (GObject *object)
     g_regex_unref (self->priv->srvst_regex);
     g_regex_unref (self->priv->stin_regex);
     g_regex_unref (self->priv->hcsq_regex);
+    g_regex_unref (self->priv->ndisstat_regex);
 
     G_OBJECT_CLASS (mm_broadband_modem_huawei_parent_class)->finalize (object);
 }