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-rw-r--r--src/plugins/gbp/gbp_scanner.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/src/plugins/gbp/gbp_scanner.c b/src/plugins/gbp/gbp_scanner.c
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+++ b/src/plugins/gbp/gbp_scanner.c
@@ -0,0 +1,104 @@
+/*
+ * gbp.h : Group Based Policy
+ *
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <plugins/gbp/gbp_scanner.h>
+#include <plugins/gbp/gbp_endpoint.h>
+#include <plugins/gbp/gbp_vxlan.h>
+
+vlib_log_class_t gs_logger;
+
+#define GBP_SCANNER_DBG(...) \
+ vlib_log_debug (gs_logger, __VA_ARGS__);
+
+static uword
+gbp_scanner (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
+{
+ uword event_type, *event_data = 0;
+ bool enabled = 0, do_scan = 0;
+
+ while (1)
+ {
+ do_scan = 0;
+
+ if (enabled)
+ {
+ /* scan every 'inactive threshold' seconds */
+ vlib_process_wait_for_event_or_clock (vm,
+ gbp_endpoint_scan_threshold
+ ());
+ }
+ else
+ vlib_process_wait_for_event (vm);
+
+ event_type = vlib_process_get_events (vm, &event_data);
+ vec_reset_length (event_data);
+
+ switch (event_type)
+ {
+ case ~0:
+ /* timer expired */
+ do_scan = 1;
+ break;
+
+ case GBP_ENDPOINT_SCAN_START:
+ enabled = 1;
+ break;
+
+ case GBP_ENDPOINT_SCAN_STOP:
+ enabled = 0;
+ break;
+
+ default:
+ ASSERT (0);
+ }
+
+ if (do_scan)
+ {
+ GBP_SCANNER_DBG ("start");
+ gbp_endpoint_scan (vm);
+ GBP_SCANNER_DBG ("stop");
+ }
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (gbp_scanner_node) = {
+ .function = gbp_scanner,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "gbp-scanner",
+};
+/* *INDENT-ON* */
+
+
+static clib_error_t *
+gbp_scanner_init (vlib_main_t * vm)
+{
+ gs_logger = vlib_log_register_class ("gbp", "scan");
+
+ return (NULL);
+}
+
+VLIB_INIT_FUNCTION (gbp_scanner_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */