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
97 lines
2.7 KiB
C
97 lines
2.7 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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#include <vlib/vlib.h>
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#include <bpf_trace_filter/bpf_trace_filter.h>
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#include <vlibapi/api.h>
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#include <vlibmemory/api.h>
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/* define message IDs */
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#include <bpf_trace_filter/bpf_trace_filter.api_enum.h>
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#include <bpf_trace_filter/bpf_trace_filter.api_types.h>
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#define REPLY_MSG_ID_BASE (bm->msg_id_base)
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#include <vlibapi/api_helper_macros.h>
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static void
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vl_api_bpf_trace_filter_set_t_handler (vl_api_bpf_trace_filter_set_t *mp)
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{
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bpf_trace_filter_main_t *bm = &bpf_trace_filter_main;
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vl_api_bpf_trace_filter_set_reply_t *rmp;
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clib_error_t *err = 0;
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int rv = 0;
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u8 is_del = !mp->is_add;
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char *bpf_expr;
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bpf_expr = vl_api_from_api_to_new_c_string (&mp->filter);
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err = bpf_trace_filter_set_unset (bpf_expr, is_del, 0);
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if (err)
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{
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rv = -1;
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clib_error_report (err);
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}
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vec_free (bpf_expr);
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REPLY_MACRO (VL_API_BPF_TRACE_FILTER_SET_REPLY);
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}
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static void
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vl_api_bpf_trace_filter_set_v2_t_handler (vl_api_bpf_trace_filter_set_v2_t *mp)
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{
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bpf_trace_filter_main_t *bm = &bpf_trace_filter_main;
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vl_api_bpf_trace_filter_set_v2_reply_t *rmp;
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clib_error_t *err = 0;
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int rv = 0;
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u8 is_del = !mp->is_add;
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u8 optimize = !!mp->optimize;
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char *bpf_expr;
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bpf_expr = vl_api_from_api_to_new_c_string (&mp->filter);
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err = bpf_trace_filter_set_unset (bpf_expr, is_del, optimize);
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if (err)
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{
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rv = -1;
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clib_error_report (err);
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}
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vec_free (bpf_expr);
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REPLY_MACRO (VL_API_BPF_TRACE_FILTER_SET_V2_REPLY);
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}
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#include <bpf_trace_filter/bpf_trace_filter.api.c>
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static clib_error_t *
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bpf_trace_filter_plugin_api_hookup (vlib_main_t *vm)
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{
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bpf_trace_filter_main_t *bm = &bpf_trace_filter_main;
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/* ask for a correctly-sized block of API message decode slots */
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bm->msg_id_base = setup_message_id_table ();
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return 0;
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}
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VLIB_API_INIT_FUNCTION (bpf_trace_filter_plugin_api_hookup);
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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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*/ |