/*
* oddbuf.c - awkward chained buffer geometry test tool
*
* Copyright (c) 2019 by 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 <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <oddbuf/oddbuf.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vpp/app/version.h>
#include <stdbool.h>
/* define message IDs */
#include <oddbuf/oddbuf.api_enum.h>
#include <oddbuf/oddbuf.api_types.h>
#define REPLY_MSG_ID_BASE omp->msg_id_base
#include <vlibapi/api_helper_macros.h>
oddbuf_main_t oddbuf_main;
/* Action function shared between message handler and debug CLI */
int
oddbuf_enable_disable (oddbuf_main_t * omp, u32 sw_if_index,
int enable_disable)
{
vnet_sw_interface_t *sw;
int rv = 0;
/* Utterly wrong? */
if (pool_is_free_index (omp->vnet_main->interface_main.sw_interfaces,
sw_if_index))
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
/* Not a physical port? */
sw = vnet_get_sw_interface (omp->vnet_main, sw_if_index);
if (sw->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
vnet_feature_enable_disable ("device-input", "oddbuf",
sw_if_index, enable_disable, 0, 0);
return rv;
}
static clib_error_t *
oddbuf_enable_disable_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
oddbuf_main_t *omp = &oddbuf_main;
u32 sw_if_index = ~0;
int enable_disable = 1;
int rv;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "disable"))
enable_disable = 0;
else if (unformat (input, "%U", unformat_vnet_sw_interface,
omp->vnet_main, &sw_if_index))
;
else
break;
}
if (sw_if_index == ~0)
return clib_error_return (0, "Please specify an interface...");
rv = oddbuf_enable_disable (omp, sw_if_index, enable_disable);
switch (rv)
{
case 0:
break;
case VNET_API_ERROR_INVALID_SW_IF_INDEX:
return clib_error_return
(0, "Invalid interface, only works on physical ports");
break;
case VNET_API_ERROR_UNIMPLEMENTED:
return clib_error_return (0,
"Device driver doesn't support redirection");
break;
default:
return clib_error_return (0, "oddbuf_enable_disable returned %d", rv);
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (oddbuf_enable_disable_command, static) =
{
.path = "oddbuf enable-disable",
.short_help =
"oddbuf enable-disable <interface-name> [disable]",
.function = oddbuf_enable_disable_command_fn,
};
/* *INDENT-ON* */
/* API message handler */
static void vl_api_oddbuf_enable_disable_t_handler
(vl_api_oddbuf_enable_disable_t * mp)
{
vl_api_oddbuf_enable_disable_reply_t *rmp;
oddbuf_main_t *omp = &oddbuf_main;
u32 sw_if_index;
int rv;
VALIDATE_SW_IF_INDEX (mp);
sw_if_index = clib_net_to_host_u32 (mp->sw_if_index);
rv = oddbuf_enable_disable (omp, sw_if_index, (int) (mp->enable_disable));
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_ODDBUF_ENABLE_DISABLE_REPLY);
}
#include <oddbuf/oddbuf.api.c>
static clib_error_t *
oddbuf_init (vlib_main_t * vm)
{
oddbuf_main_t *om = &oddbuf_main;
clib_error_t *error = 0;
om->vlib_main = vm;
om->vnet_main = vnet_get_main ();
/* Ask for a correctly-sized block of API message decode slots */
om->msg_id_base = setup_message_id_table ();
/* Basic setup */
om->n_to_copy = 1;
om->second_chunk_offset = 1;
om->first_chunk_offset = 0;
return error;
}
VLIB_INIT_FUNCTION (oddbuf_init);
/* *INDENT-OFF* */
VNET_FEATURE_INIT (oddbuf, static) =
{
.arc_name = "device-input",
.node_name = "oddbuf",
.runs_before = VNET_FEATURES ("ethernet-input"),
};
/* *INDENT-ON */
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () =
{
.version = VPP_BUILD_VER,
.description = "Awkward chained buffer geometry generator",
.default_disabled = 1,
};
/* *INDENT-ON* */
static clib_error_t *
oddbuf_config_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
oddbuf_main_t *omp = &oddbuf_main;
unformat_input_t _line_input, *line_input = &_line_input;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "n_to_copy %d", &omp->n_to_copy))
;
else if (unformat (line_input, "offset %d", &omp->second_chunk_offset))
;
else if (unformat (line_input, "first_offset %d",
&omp->first_chunk_offset))
;
else
break;
}
unformat_free (line_input);
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (oddbuf_config_command, static) =
{
.path = "oddbuf configure",
.short_help =
"oddbuf configure n_to_copy <nn> offset <nn> first_offset <nn>",
.function = oddbuf_config_command_fn,
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/