Line data Source code
1 : /*
2 : * Copyright (c) 2016 Cisco and/or its affiliates.
3 : * Licensed under the Apache License, Version 2.0 (the "License");
4 : * you may not use this file except in compliance with the License.
5 : * You may obtain a copy of the License at:
6 : *
7 : * http://www.apache.org/licenses/LICENSE-2.0
8 : *
9 : * Unless required by applicable law or agreed to in writing, software
10 : * distributed under the License is distributed on an "AS IS" BASIS,
11 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 : * See the License for the specific language governing permissions and
13 : * limitations under the License.
14 : */
15 : /*
16 : *------------------------------------------------------------------
17 : * nsh_md2_ioam_export.c - ioam export API / debug CLI handling
18 : *------------------------------------------------------------------
19 : */
20 :
21 : #include <vnet/vnet.h>
22 : #include <vnet/plugin/plugin.h>
23 : #include <ioam/export-common/ioam_export.h>
24 :
25 : #include <vlibapi/api.h>
26 : #include <vlibmemory/api.h>
27 :
28 : #include <nsh/nsh.h>
29 : #include <nsh/nsh-md2-ioam/nsh_md2_ioam.h>
30 :
31 :
32 : ioam_export_main_t nsh_md2_ioam_export_main;
33 :
34 :
35 : extern vlib_node_registration_t nsh_md2_ioam_export_node;
36 : extern void nsh_md2_set_next_ioam_export_override (uword next);
37 : /* Action function shared between message handler and debug CLI */
38 : int
39 0 : nsh_md2_ioam_export_enable_disable (ioam_export_main_t * em,
40 : u8 is_disable,
41 : ip4_address_t * collector_address,
42 : ip4_address_t * src_address)
43 : {
44 0 : vlib_main_t *vm = em->vlib_main;
45 0 : u32 node_index = nsh_md2_ioam_export_node.index;
46 0 : vlib_node_t *nsh_input_node = NULL;
47 :
48 0 : if (is_disable == 0)
49 : {
50 0 : if (em->my_hbh_slot == ~0)
51 : {
52 : /* Hook this export node to nsh-input */
53 0 : nsh_input_node = vlib_get_node_by_name (vm, (u8 *) "nsh-input");
54 0 : if (!nsh_input_node)
55 : {
56 : /* node does not exist give up */
57 0 : return (-1);
58 : }
59 0 : em->my_hbh_slot =
60 0 : vlib_node_add_next (vm, nsh_input_node->index, node_index);
61 : }
62 0 : if (1 == ioam_export_header_create (em, collector_address, src_address))
63 : {
64 0 : ioam_export_thread_buffer_init (em, vm);
65 0 : nsh_md2_set_next_ioam_export_override (em->my_hbh_slot);
66 : /* Turn on the export buffer check process */
67 0 : vlib_process_signal_event (vm, em->export_process_node_index, 1, 0);
68 :
69 : }
70 : else
71 : {
72 0 : return (-2);
73 : }
74 : }
75 : else
76 : {
77 0 : nsh_md2_set_next_ioam_export_override (0); // VXLAN_GPE_DECAP_IOAM_V4_NEXT_POP
78 0 : ioam_export_header_cleanup (em, collector_address, src_address);
79 0 : ioam_export_thread_buffer_free (em);
80 : /* Turn off the export buffer check process */
81 0 : vlib_process_signal_event (vm, em->export_process_node_index, 2, 0);
82 :
83 : }
84 :
85 0 : return 0;
86 : }
87 :
88 :
89 :
90 : static clib_error_t *
91 0 : set_nsh_md2_ioam_export_ipfix_command_fn (vlib_main_t * vm,
92 : unformat_input_t * input,
93 : vlib_cli_command_t * cmd)
94 : {
95 0 : ioam_export_main_t *em = &nsh_md2_ioam_export_main;
96 : ip4_address_t collector, src;
97 0 : u8 is_disable = 0;
98 :
99 0 : collector.as_u32 = 0;
100 0 : src.as_u32 = 0;
101 :
102 0 : while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
103 : {
104 0 : if (unformat (input, "collector %U", unformat_ip4_address, &collector))
105 : ;
106 0 : else if (unformat (input, "src %U", unformat_ip4_address, &src))
107 : ;
108 0 : else if (unformat (input, "disable"))
109 0 : is_disable = 1;
110 : else
111 0 : break;
112 : }
113 :
114 0 : if (collector.as_u32 == 0)
115 0 : return clib_error_return (0, "collector address required");
116 :
117 0 : if (src.as_u32 == 0)
118 0 : return clib_error_return (0, "src address required");
119 :
120 0 : em->ipfix_collector.as_u32 = collector.as_u32;
121 0 : em->src_address.as_u32 = src.as_u32;
122 :
123 0 : vlib_cli_output (vm, "Collector %U, src address %U",
124 : format_ip4_address, &em->ipfix_collector,
125 : format_ip4_address, &em->src_address);
126 :
127 : /* Turn on the export timer process */
128 : // vlib_process_signal_event (vm, flow_report_process_node.index,
129 : //1, 0);
130 0 : if (0 !=
131 0 : nsh_md2_ioam_export_enable_disable (em, is_disable, &collector, &src))
132 : {
133 0 : return clib_error_return (0, "Unable to set ioam nsh-md2 export");
134 : }
135 :
136 0 : return 0;
137 : }
138 :
139 : /* *INDENT-OFF* */
140 58901 : VLIB_CLI_COMMAND (set_nsh_md2_ioam_ipfix_command, static) =
141 : {
142 : .path = "set nsh-md2-ioam export ipfix",
143 : .short_help = "set nsh-md2-ioam export ipfix collector <ip4-address> src <ip4-address>",
144 : .function = set_nsh_md2_ioam_export_ipfix_command_fn,
145 : };
146 : /* *INDENT-ON* */
147 :
148 :
149 : #define IPFIX_NSH_MD2_IOAM_EXPORT_ID 274 // TODO: Move this to ioam/ioam_export.h
150 : static clib_error_t *
151 575 : nsh_md2_ioam_export_init (vlib_main_t * vm)
152 : {
153 575 : ioam_export_main_t *em = &nsh_md2_ioam_export_main;
154 575 : clib_error_t *error = 0;
155 :
156 575 : em->set_id = IPFIX_NSH_MD2_IOAM_EXPORT_ID;
157 575 : em->unix_time_0 = (u32) time (0); /* Store starting time */
158 575 : em->vlib_time_0 = vlib_time_now (vm);
159 :
160 575 : em->my_hbh_slot = ~0;
161 575 : em->vlib_main = vm;
162 575 : em->vnet_main = vnet_get_main ();
163 575 : ioam_export_reset_next_node (em);
164 :
165 575 : return error;
166 : }
167 :
168 2303 : VLIB_INIT_FUNCTION (nsh_md2_ioam_export_init);
169 :
170 :
171 : /*
172 : * fd.io coding-style-patch-verification: ON
173 : *
174 : * Local Variables:
175 : * eval: (c-set-style "gnu")
176 : * End:
177 : */
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