blob: 1f1c38fd6e6517c5a0ba8b8e476b83cfc7cf4e7e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* pcap_classify.h - Use the classifier to decide if a packet is captured
*
* Copyright (c) 2021 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 <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/classify/vnet_classify.h>
#include <vnet/classify/trace_classify.h>
/** @file pcap_classify.h
* Use the vpp classifier to decide whether to capture packets
*/
/** @brief vnet_is_packet_pcaped
* @param vlib_buffer_t *b - packet to capture
* @return 0 => no capture, 1 => capture
*/
static_always_inline int
vnet_is_packet_pcaped (vnet_pcap_t *pp, vlib_buffer_t *b, u32 sw_if_index)
{
const u32 pcap_sw_if_index = pp->pcap_sw_if_index;
const u32 filter_classify_table_index = pp->filter_classify_table_index;
if (pcap_sw_if_index != 0)
{
if (~0 == sw_if_index)
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
if (pcap_sw_if_index != sw_if_index)
return 0; /* wrong interface, skip */
}
if (filter_classify_table_index != ~0 &&
vnet_is_packet_traced_inline (b, filter_classify_table_index,
0 /* full classify */) != 1)
return 0; /* not matching the filter, skip */
return 1; /* success */
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
