ioam_export.c revision 0fa66d61
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 * 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#include <vnet/ip/ip6_hop_by_hop.h>
28#include <vnet/format_fns.h>
29
30/* define message IDs */
31#include <ioam/export/ioam_export.api_enum.h>
32#include <ioam/export/ioam_export.api_types.h>
33
34#define REPLY_MSG_ID_BASE sm->msg_id_base
35#include <vlibapi/api_helper_macros.h>
36
37ioam_export_main_t ioam_export_main;
38
39extern vlib_node_registration_t export_node;
40
41/* Action function shared between message handler and debug CLI */
42
43int
44ioam_export_ip6_enable_disable (ioam_export_main_t * em,
45				u8 is_disable,
46				ip4_address_t * collector_address,
47				ip4_address_t * src_address)
48{
49  vlib_main_t *vm = em->vlib_main;
50
51  if (is_disable == 0)
52    {
53      if (1 == ioam_export_header_create (em, collector_address, src_address))
54	{
55	  ioam_export_thread_buffer_init (em, vm);
56	  ip6_hbh_set_next_override (em->my_hbh_slot);
57	  /* Turn on the export buffer check process */
58	  vlib_process_signal_event (vm, em->export_process_node_index, 1, 0);
59
60	}
61      else
62	{
63	  return (-2);
64	}
65    }
66  else
67    {
68      ip6_hbh_set_next_override (IP6_LOOKUP_NEXT_POP_HOP_BY_HOP);
69      ioam_export_header_cleanup (em, collector_address, src_address);
70      ioam_export_thread_buffer_free (em);
71      /* Turn off the export buffer check process */
72      vlib_process_signal_event (vm, em->export_process_node_index, 2, 0);
73
74    }
75
76  return 0;
77}
78
79/* API message handler */
80static void vl_api_ioam_export_ip6_enable_disable_t_handler
81  (vl_api_ioam_export_ip6_enable_disable_t * mp)
82{
83  vl_api_ioam_export_ip6_enable_disable_reply_t *rmp;
84  ioam_export_main_t *sm = &ioam_export_main;
85  int rv;
86
87  rv = ioam_export_ip6_enable_disable (sm, (int) (mp->is_disable),
88				       (ip4_address_t *)
89				       mp->collector_address,
90				       (ip4_address_t *) mp->src_address);
91
92  REPLY_MACRO (VL_API_IOAM_EXPORT_IP6_ENABLE_DISABLE_REPLY);
93}
94
95static clib_error_t *
96set_ioam_export_ipfix_command_fn (vlib_main_t * vm,
97				  unformat_input_t * input,
98				  vlib_cli_command_t * cmd)
99{
100  ioam_export_main_t *em = &ioam_export_main;
101  ip4_address_t collector, src;
102  u8 is_disable = 0;
103
104  collector.as_u32 = 0;
105  src.as_u32 = 0;
106
107  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
108    {
109      if (unformat (input, "collector %U", unformat_ip4_address, &collector))
110	;
111      else if (unformat (input, "src %U", unformat_ip4_address, &src))
112	;
113      else if (unformat (input, "disable"))
114	is_disable = 1;
115      else
116	break;
117    }
118
119  if (collector.as_u32 == 0)
120    return clib_error_return (0, "collector address required");
121
122  if (src.as_u32 == 0)
123    return clib_error_return (0, "src address required");
124
125  em->ipfix_collector.as_u32 = collector.as_u32;
126  em->src_address.as_u32 = src.as_u32;
127
128  vlib_cli_output (vm, "Collector %U, src address %U",
129		   format_ip4_address, &em->ipfix_collector,
130		   format_ip4_address, &em->src_address);
131
132  /* Turn on the export timer process */
133  // vlib_process_signal_event (vm, flow_report_process_node.index,
134  //1, 0);
135  ioam_export_ip6_enable_disable (em, is_disable, &collector, &src);
136
137  return 0;
138}
139
140/* *INDENT-OFF* */
141VLIB_CLI_COMMAND (set_ipfix_command, static) =
142{
143.path = "set ioam export ipfix",.short_help =
144    "set ioam export ipfix collector <ip4-address> src <ip4-address>",.
145    function = set_ioam_export_ipfix_command_fn,};
146/* *INDENT-ON* */
147
148#include <ioam/export/ioam_export.api.c>
149static clib_error_t *
150ioam_export_init (vlib_main_t * vm)
151{
152  ioam_export_main_t *em = &ioam_export_main;
153  u32 node_index = export_node.index;
154  vlib_node_t *ip6_hbyh_node = NULL;
155
156  em->vlib_main = vm;
157  em->vnet_main = vnet_get_main ();
158  em->set_id = IPFIX_IOAM_EXPORT_ID;
159  ioam_export_reset_next_node (em);
160
161  /* Ask for a correctly-sized block of API message decode slots */
162  em->msg_id_base = setup_message_id_table ();
163
164  em->unix_time_0 = (u32) time (0);	/* Store starting time */
165  em->vlib_time_0 = vlib_time_now (vm);
166
167  /* Hook this export node to ip6-hop-by-hop */
168  ip6_hbyh_node = vlib_get_node_by_name (vm, (u8 *) "ip6-hop-by-hop");
169  em->my_hbh_slot = vlib_node_add_next (vm, ip6_hbyh_node->index, node_index);
170
171  return 0;
172}
173
174VLIB_INIT_FUNCTION (ioam_export_init);
175
176/*
177 * fd.io coding-style-patch-verification: ON
178 *
179 * Local Variables:
180 * eval: (c-set-style "gnu")
181 * End:
182 */
183