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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.
*/
#include <vlib/vlib.h>
#include <vppinfra/error.h>
#include <vnet/feature/feature.h>
#include <vnet/span/span.h>
int
span_add_delete_entry (vlib_main_t * vm,
u32 src_sw_if_index, u32 dst_sw_if_index, u8 is_add)
{
span_main_t *sm = &span_main;
if ((src_sw_if_index == ~0) || (dst_sw_if_index == ~0 && is_add)
|| (src_sw_if_index == dst_sw_if_index))
return VNET_API_ERROR_INVALID_INTERFACE;
vnet_sw_interface_t *sw =
vnet_get_sw_interface (sm->vnet_main, src_sw_if_index);
vec_validate_aligned (sm->dst_by_src_sw_if_index, sw->sw_if_index,
CLIB_CACHE_LINE_BYTES);
sm->dst_by_src_sw_if_index[sw->sw_if_index] = is_add ? dst_sw_if_index : 0;
vnet_feature_enable_disable ("device-input", "span-input",
sw->sw_if_index, is_add, 0, 0);
return 0;
}
static clib_error_t *
set_interface_span_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
span_main_t *sm = &span_main;
u32 src_sw_if_index = ~0;
u32 dst_sw_if_index = ~0;
u8 is_add = 1;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%U", unformat_vnet_sw_interface,
sm->vnet_main, &src_sw_if_index))
;
else if (unformat (input, "destination %U", unformat_vnet_sw_interface,
sm->vnet_main, &dst_sw_if_index))
;
else if (unformat (input, "disable"))
is_add = 0;
else
break;
}
int rv =
span_add_delete_entry (vm, src_sw_if_index, dst_sw_if_index, is_add);
if (rv == VNET_API_ERROR_INVALID_INTERFACE)
return clib_error_return (0, "Invalid interface");
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_interface_span_command, static) = {
.path = "set interface span",
.short_help = "set interface span <if-name> [disable | destination <if-name>]",
.function = set_interface_span_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
show_interfaces_span_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
span_main_t *sm = &span_main;
vnet_main_t *vnm = &vnet_main;
u32 src_sw_if_index = 0, *dst_sw_if_index;
u8 header = 1;
vec_foreach (dst_sw_if_index, sm->dst_by_src_sw_if_index)
{
if (*dst_sw_if_index > 0) // && *dst_sw_if_index != ~0)
{
if (header)
{
vlib_cli_output (vm,
"SPAN source interface to destination interface table");
header = 0;
}
vlib_cli_output (vm, "%32U => %-32U",
format_vnet_sw_if_index_name, vnm, src_sw_if_index,
format_vnet_sw_if_index_name, vnm, *dst_sw_if_index);
}
src_sw_if_index++;
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_interfaces_span_command, static) = {
.path = "show interfaces span",
.short_help = "Shows SPAN mirror table",
.function = show_interfaces_span_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
span_init (vlib_main_t * vm)
{
span_main_t *sm = &span_main;
sm->vlib_main = vm;
sm->vnet_main = vnet_get_main ();
return 0;
}
VLIB_INIT_FUNCTION (span_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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