5be4b869a4
BPF filter w/o optimization can take x2 - x3 more instructions, causing significant slow down in fast path. Enable pcap optimization by default via cli and introduce api v2 with pcap optimization control, keep v1 for a while as it exists in previous release already. Intriduce bpf filter cli dump, similar to tcpdump -d. Also fix memleak, function name typo, cli pcap format hint and add related tests. Type: improvement Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru> Change-Id: I92b2b519e92326f1b8e1a4dda6a3e3edc52f87ad
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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*------------------------------------------------------------------
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* Copyright (c) 2023 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*------------------------------------------------------------------
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*/
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#ifndef _BPF_TRACE_FILTER_H_
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#define _BPF_TRACE_FILTER_H_
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#include <vlib/vlib.h>
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#include <pcap.h>
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typedef struct
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{
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pcap_t *pcap;
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u16 msg_id_base;
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u8 prog_set;
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struct bpf_program prog;
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} bpf_trace_filter_main_t;
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extern bpf_trace_filter_main_t bpf_trace_filter_main;
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clib_error_t *bpf_trace_filter_set_unset (const char *bpf_expr, u8 is_del,
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u8 optimize);
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u8 *format_bpf_trace_filter (u8 *s, va_list *a);
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#endif /* _BPF_TRACE_FILTER_H_ */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/ |