aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/ipfix-export/flow_report_classify.h
blob: 0533b450122a47bae65707bbf5e91c1abb37f986 (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
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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/*
 * Copyright (c) 2015 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 __included_flow_report_classify_h__
#define __included_flow_report_classify_h__

#define foreach_ipfix_ip4_field                                             \
_(ip->src_address.as_u32, ((u32[]){0xFFFFFFFF}), sourceIPv4Address, 4)      \
_(ip->dst_address.as_u32, ((u32[]){0xFFFFFFFF}), destinationIPv4Address, 4) \
_(ip->protocol, ((u8[]){0xFF}), protocolIdentifier, 1)

#define foreach_ipfix_ip6_field                                             \
_(ip6->src_address.as_u8,                                                   \
  ((u32[]){0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}),                   \
  sourceIPv6Address, 16)                                                    \
_(ip6->dst_address.as_u8,                                                   \
  ((u32[]){0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}),                   \
  destinationIPv6Address, 16)                                               \
_(ip6->protocol, ((u8[]){0xFF}), protocolIdentifier, 1)

#define foreach_ipfix_tcpudp_field                                          \
_(tcpudp->src_port, ((u16[]){0xFFFF}), sourceTransportPort, 2)              \
_(tcpudp->dst_port, ((u16[]){0xFFFF}), destinationTransportPort, 2)

#define foreach_ipfix_tcp_field                                             \
_(tcpudp->src_port, ((u16[]){0xFFFF}), tcpSourcePort, 2)                    \
_(tcpudp->dst_port, ((u16[]){0xFFFF}), tcpDestinationPort, 2)

#define foreach_ipfix_udp_field                                             \
_(tcpudp->src_port, ((u16[]){0xFFFF}), udpSourcePort, 2)                    \
_(tcpudp->dst_port, ((u16[]){0xFFFF}), udpDestinationPort, 2)

#define foreach_ipfix_transport_protocol_field                              \
  switch (transport_protocol) {                                             \
    case 255:                                                               \
      foreach_ipfix_tcpudp_field;                                           \
      break;                                                                \
    case 6:                                                                 \
      foreach_ipfix_tcp_field;                                              \
      break;                                                                \
    case 17:                                                                \
      foreach_ipfix_udp_field;                                              \
      break;                                                                \
  }

#define foreach_ipfix_field                                                 \
  if (ip_version == 4) {                                                    \
    ip = (ip4_header_t *)ip_start;                                          \
    tcpudp = (tcpudp_header_t *)(ip+1);                                     \
    foreach_ipfix_ip4_field;                                                \
  } else {                                                                  \
    ip6 = (ip6_header_t *)ip_start;                                         \
    tcpudp = (tcpudp_header_t *)(ip6+1);                                    \
    foreach_ipfix_ip6_field;                                                \
  }                                                                         \
  foreach_ipfix_transport_protocol_field

typedef struct
{
  u32 classify_table_index;
  u8 ip_version;
  u8 transport_protocol;
} ipfix_classify_table_t;

typedef struct
{
  u32 domain_id;
  u16 src_port;
  ipfix_classify_table_t *tables;
} flow_report_classify_main_t;

extern flow_report_classify_main_t flow_report_classify_main;

static_always_inline u8
ipfix_classify_table_index_valid (u32 index)
{
  flow_report_classify_main_t *fcm = &flow_report_classify_main;
  return index < vec_len (fcm->tables) &&
    fcm->tables[index].classify_table_index != ~0;
}

static_always_inline ipfix_classify_table_t *
ipfix_classify_add_table (void)
{
  flow_report_classify_main_t *fcm = &flow_report_classify_main;
  u32 i;
  for (i = 0; i < vec_len (fcm->tables); i++)
    if (!ipfix_classify_table_index_valid (i))
      return &fcm->tables[i];
  u32 index = vec_len (fcm->tables);
  vec_validate (fcm->tables, index);
  return &fcm->tables[index];
}

static_always_inline void
ipfix_classify_delete_table (u32 index)
{
  flow_report_classify_main_t *fcm = &flow_report_classify_main;
  ASSERT (index < vec_len (fcm->tables));
  ASSERT (fcm->tables[index].classify_table_index != ~0);
  fcm->tables[index].classify_table_index = ~0;
}

u8 *ipfix_classify_template_rewrite (flow_report_main_t * frm,
				     flow_report_t * fr,
				     ip4_address_t * collector_address,
				     ip4_address_t * src_address,
				     u16 collector_port);

vlib_frame_t *ipfix_classify_send_flows (flow_report_main_t * frm,
					 flow_report_t * fr,
					 vlib_frame_t * f,
					 u32 * to_next, u32 node_index);

#endif /* __included_flow_report_classify_h__ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */