bpf_trace_filter: plugin for BPF Trace Filtering

Change-Id: I342de0a375b783725aa2b621c1c70bc8bf646450 Signed-off-by: Mohammed Hawari <mohammed@hawari.fr> Type: improvement
2023-06-09 16:50:56 +02:00
parent 52fa5f21b9
commit ccd3070958
15 changed files with 405 additions and 0 deletions
@@ -0,0 +1,40 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2023 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.
+ *------------------------------------------------------------------
+ */
+
+#ifndef _BPF_TRACE_FILTER_H_
+#define _BPF_TRACE_FILTER_H_
+#include <vlib/vlib.h>
+#include <pcap.h>
+typedef struct
+{
+  pcap_t *pcap;
+  u16 msg_id_base;
+  u8 prog_set;
+  struct bpf_program prog;
+} bpf_trace_filter_main_t;
+
+extern bpf_trace_filter_main_t bpf_trace_filter_main;
+clib_error_t *bpf_trace_filter_set_unset (const char *bpf_expr, u8 is_del);
+#endif /* _BPF_TRACE_FILTER_H_ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */