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/*
* Copyright (c) 2016 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.
*/
/*
*------------------------------------------------------------------
* nsh_md2_ioam_export.c - ioam export API / debug CLI handling
*------------------------------------------------------------------
*/
#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <ioam/export-common/ioam_export.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <nsh/nsh.h>
#include <nsh/nsh-md2-ioam/nsh_md2_ioam.h>
ioam_export_main_t nsh_md2_ioam_export_main;
extern vlib_node_registration_t nsh_md2_ioam_export_node;
extern void nsh_md2_set_next_ioam_export_override (uword next);
/* Action function shared between message handler and debug CLI */
int
nsh_md2_ioam_export_enable_disable (ioam_export_main_t * em,
u8 is_disable,
ip4_address_t * collector_address,
ip4_address_t * src_address)
{
vlib_main_t *vm = em->vlib_main;
u32 node_index = nsh_md2_ioam_export_node.index;
vlib_node_t *nsh_input_node = NULL;
if (is_disable == 0)
{
if (em->my_hbh_slot == ~0)
{
/* Hook this export node to nsh-input */
nsh_input_node = vlib_get_node_by_name (vm, (u8 *) "nsh-input");
if (!nsh_input_node)
{
/* node does not exist give up */
return (-1);
}
em->my_hbh_slot =
vlib_node_add_next (vm, nsh_input_node->index, node_index);
}
if (1 == ioam_export_header_create (em, collector_address, src_address))
{
ioam_export_thread_buffer_init (em, vm);
nsh_md2_set_next_ioam_export_override (em->my_hbh_slot);
/* Turn on the export buffer check process */
vlib_process_signal_event (vm, em->export_process_node_index, 1, 0);
}
else
{
return (-2);
}
}
else
{
nsh_md2_set_next_ioam_export_override (0); // VXLAN_GPE_DECAP_IOAM_V4_NEXT_POP
ioam_export_header_cleanup (em, collector_address, src_address);
ioam_export_thread_buffer_free (em);
/* Turn off the export buffer check process */
vlib_process_signal_event (vm, em->export_process_node_index, 2, 0);
}
return 0;
}
static clib_error_t *
set_nsh_md2_ioam_export_ipfix_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
ioam_export_main_t *em = &nsh_md2_ioam_export_main;
ip4_address_t collector, src;
u8 is_disable = 0;
collector.as_u32 = 0;
src.as_u32 = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "collector %U", unformat_ip4_address, &collector))
;
else if (unformat (input, "src %U", unformat_ip4_address, &src))
;
else if (unformat (input, "disable"))
is_disable = 1;
else
break;
}
if (collector.as_u32 == 0)
return clib_error_return (0, "collector address required");
if (src.as_u32 == 0)
return clib_error_return (0, "src address required");
em->ipfix_collector.as_u32 = collector.as_u32;
em->src_address.as_u32 = src.as_u32;
vlib_cli_output (vm, "Collector %U, src address %U",
format_ip4_address, &em->ipfix_collector,
format_ip4_address, &em->src_address);
/* Turn on the export timer process */
// vlib_process_signal_event (vm, flow_report_process_node.index,
//1, 0);
if (0 !=
nsh_md2_ioam_export_enable_disable (em, is_disable, &collector, &src))
{
return clib_error_return (0, "Unable to set ioam nsh-md2 export");
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_nsh_md2_ioam_ipfix_command, static) =
{
.path = "set nsh-md2-ioam export ipfix",
.short_help = "set nsh-md2-ioam export ipfix collector <ip4-address> src <ip4-address>",
.function = set_nsh_md2_ioam_export_ipfix_command_fn,
};
/* *INDENT-ON* */
#define IPFIX_NSH_MD2_IOAM_EXPORT_ID 274 // TODO: Move this to ioam/ioam_export.h
static clib_error_t *
nsh_md2_ioam_export_init (vlib_main_t * vm)
{
ioam_export_main_t *em = &nsh_md2_ioam_export_main;
clib_error_t *error = 0;
em->set_id = IPFIX_NSH_MD2_IOAM_EXPORT_ID;
em->unix_time_0 = (u32) time (0); /* Store starting time */
em->vlib_time_0 = vlib_time_now (vm);
em->my_hbh_slot = ~0;
em->vlib_main = vm;
em->vnet_main = vnet_get_main ();
ioam_export_reset_next_node (em);
return error;
}
VLIB_INIT_FUNCTION (nsh_md2_ioam_export_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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