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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* ethernet/arp.c: IP v4 ARP node
*
* Copyright (c) 2010 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_ethernet_arp_packet_h
#define included_ethernet_arp_packet_h
#define foreach_ethernet_arp_hardware_type \
_ (0, reserved) \
_ (1, ethernet) \
_ (2, experimental_ethernet) \
_ (3, ax_25) \
_ (4, proteon_pronet_token_ring) \
_ (5, chaos) \
_ (6, ieee_802) \
_ (7, arcnet) \
_ (8, hyperchannel) \
_ (9, lanstar) \
_ (10, autonet) \
_ (11, localtalk) \
_ (12, localnet) \
_ (13, ultra_link) \
_ (14, smds) \
_ (15, frame_relay) \
_ (16, atm) \
_ (17, hdlc) \
_ (18, fibre_channel) \
_ (19, atm19) \
_ (20, serial_line) \
_ (21, atm21) \
_ (22, mil_std_188_220) \
_ (23, metricom) \
_ (24, ieee_1394) \
_ (25, mapos) \
_ (26, twinaxial) \
_ (27, eui_64) \
_ (28, hiparp) \
_ (29, iso_7816_3) \
_ (30, arpsec) \
_ (31, ipsec_tunnel) \
_ (32, infiniband) \
_ (33, cai) \
_ (34, wiegand) \
_ (35, pure_ip) \
_ (36, hw_exp1) \
_ (256, hw_exp2)
#define foreach_ethernet_arp_opcode \
_ (reserved) \
_ (request) \
_ (reply) \
_ (reverse_request) \
_ (reverse_reply) \
_ (drarp_request) \
_ (drarp_reply) \
_ (drarp_error) \
_ (inarp_request) \
_ (inarp_reply) \
_ (arp_nak) \
_ (mars_request) \
_ (mars_multi) \
_ (mars_mserv) \
_ (mars_join) \
_ (mars_leave) \
_ (mars_nak) \
_ (mars_unserv) \
_ (mars_sjoin) \
_ (mars_sleave) \
_ (mars_grouplist_request) \
_ (mars_grouplist_reply) \
_ (mars_redirect_map) \
_ (mapos_unarp) \
_ (exp1) \
_ (exp2)
typedef enum
{
#define _(n,f) ETHERNET_ARP_HARDWARE_TYPE_##f = (n),
foreach_ethernet_arp_hardware_type
#undef _
} ethernet_arp_hardware_type_t;
typedef enum
{
#define _(f) ETHERNET_ARP_OPCODE_##f,
foreach_ethernet_arp_opcode
#undef _
ETHERNET_ARP_N_OPCODE,
} ethernet_arp_opcode_t;
typedef enum
{
IP4_ARP_NEXT_DROP,
IP4_ARP_N_NEXT,
} ip4_arp_next_t;
typedef enum
{
IP4_ARP_ERROR_DROP,
IP4_ARP_ERROR_REQUEST_SENT,
IP4_ARP_ERROR_NON_ARP_ADJ,
IP4_ARP_ERROR_REPLICATE_DROP,
IP4_ARP_ERROR_REPLICATE_FAIL,
IP4_ARP_ERROR_NO_SOURCE_ADDRESS,
} ip4_arp_error_t;
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
u8 ethernet[6];
ip4_address_t ip4;
}) ethernet_arp_ip4_over_ethernet_address_t;
/* *INDENT-ON* */
typedef struct
{
u16 l2_type;
u16 l3_type;
u8 n_l2_address_bytes;
u8 n_l3_address_bytes;
u16 opcode;
union
{
ethernet_arp_ip4_over_ethernet_address_t ip4_over_ethernet[2];
/* Others... */
u8 data[0];
};
} ethernet_arp_header_t;
typedef enum ethernet_arp_entry_flags_t_
{
ETHERNET_ARP_IP4_ENTRY_FLAG_STATIC = (1 << 0),
ETHERNET_ARP_IP4_ENTRY_FLAG_DYNAMIC = (1 << 1),
ETHERNET_ARP_IP4_ENTRY_FLAG_NO_FIB_ENTRY = (1 << 2),
} __attribute__ ((packed)) ethernet_arp_entry_flags_t;
typedef struct
{
u32 sw_if_index;
ip4_address_t ip4_address;
u8 ethernet_address[6];
ethernet_arp_entry_flags_t flags;
u64 cpu_time_last_updated;
/**
* The index of the adj-fib entry created
*/
fib_node_index_t fib_entry_index;
} ethernet_arp_ip4_entry_t;
ethernet_arp_ip4_entry_t *ip4_neighbor_entries (u32 sw_if_index);
u8 *format_ethernet_arp_ip4_entry (u8 * s, va_list * va);
void send_ip4_garp (vlib_main_t * vm, vnet_hw_interface_t * hi);
#endif /* included_ethernet_arp_packet_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
