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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* 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.
*/
#ifndef __GBP_CLASSIFY_H__
#define __GBP_CLASSIFY_H__
#include <plugins/gbp/gbp.h>
#include <vnet/ethernet/arp_packet.h>
typedef enum gbp_src_classify_type_t_
{
GBP_SRC_CLASSIFY_NULL,
GBP_SRC_CLASSIFY_PORT,
GBP_SRC_CLASSIFY_LPM,
GBP_SRC_CLASSIFY_LPM_ANON,
GBP_SRC_N_CLASSIFY
#define GBP_SRC_N_CLASSIFY GBP_SRC_N_CLASSIFY
} gbp_src_classify_type_t;
/**
* Grouping of global data for the GBP source EPG classification feature
*/
typedef struct gbp_src_classify_main_t_
{
/**
* Next nodes for L2 output features
*/
u32 l2_input_feat_next[GBP_SRC_N_CLASSIFY][32];
} gbp_src_classify_main_t;
extern gbp_src_classify_main_t gbp_src_classify_main;
enum gbp_classify_get_ip_way
{
GBP_CLASSIFY_GET_IP_SRC = 0,
GBP_CLASSIFY_GET_IP_DST = 1
};
static_always_inline dpo_proto_t
gbp_classify_get_ip_address (const ethernet_header_t * eh0,
const ip4_address_t ** ip4,
const ip6_address_t ** ip6,
const enum gbp_classify_get_ip_way way)
{
u16 etype = clib_net_to_host_u16 (eh0->type);
const void *l3h0 = eh0 + 1;
if (ETHERNET_TYPE_VLAN == etype)
{
const ethernet_vlan_header_t *vh0 =
(ethernet_vlan_header_t *) (eh0 + 1);
etype = clib_net_to_host_u16 (vh0->type);
l3h0 = vh0 + 1;
}
switch (etype)
{
case ETHERNET_TYPE_IP4:
*ip4 = &(&((const ip4_header_t *) l3h0)->src_address)[way];
return DPO_PROTO_IP4;
case ETHERNET_TYPE_IP6:
*ip6 = &(&((const ip6_header_t *) l3h0)->src_address)[way];
return DPO_PROTO_IP6;
case ETHERNET_TYPE_ARP:
*ip4 = &((ethernet_arp_header_t *) l3h0)->ip4_over_ethernet[way].ip4;
return DPO_PROTO_IP4;
}
return DPO_PROTO_NONE;
}
#endif
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
