/*
* flowprobe.c - skeleton vpp-api-test plug-in
*
* Copyright (c) <current-year> <your-organization>
* 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 <vat/vat.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vppinfra/error.h>
#include <flowprobe/flowprobe.h>
#define __plugin_msg_base flowprobe_test_main.msg_id_base
#include <vlibapi/vat_helper_macros.h>
/**
* @file vpp_api_test plugin
*/
uword unformat_sw_if_index (unformat_input_t * input, va_list * args);
/* Declare message IDs */
#include <flowprobe/flowprobe_msg_enum.h>
/* define message structures */
#define vl_typedefs
#include <flowprobe/flowprobe_all_api_h.h>
#undef vl_typedefs
/* declare message handlers for each api */
#define vl_endianfun /* define message structures */
#include <flowprobe/flowprobe_all_api_h.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...)
#define vl_printfun
#include <flowprobe/flowprobe_all_api_h.h>
#undef vl_printfun
/* Get the API version number. */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <flowprobe/flowprobe_all_api_h.h>
#undef vl_api_version
typedef struct
{
/** API message ID base */
u16 msg_id_base;
/** vat_main_t pointer */
vat_main_t *vat_main;
} flowprobe_test_main_t;
flowprobe_test_main_t flowprobe_test_main;
#define foreach_standard_reply_retval_handler \
_(flowprobe_tx_interface_add_del_reply) \
_(flowprobe_params_reply)
#define _(n) \
static void vl_api_##n##_t_handler \
(vl_api_##n##_t * mp) \
{ \
vat_main_t * vam = flowprobe_test_main.vat_main; \
i32 retval = ntohl(mp->retval); \
if (vam->async_mode) { \
vam->async_errors += (retval < 0); \
} else { \
vam->retval = retval; \
vam->result_ready = 1; \
} \
}
foreach_standard_reply_retval_handler;
#undef _
/*
* Table of message reply handlers, must include boilerplate handlers
* we just generated
*/
#define foreach_vpe_api_reply_msg \
_(FLOWPROBE_TX_INTERFACE_ADD_DEL_REPLY, \
flowprobe_tx_interface_add_del_reply) \
_(FLOWPROBE_PARAMS_REPLY, flowprobe_params_reply)
static int
api_flowprobe_tx_interface_add_del (vat_main_t * vam)
{
unformat_input_t *i = vam->input;
int enable_disable = 1;
u8 which = FLOW_VARIANT_IP4;
u32 sw_if_index = ~0;
vl_api_flowprobe_tx_interface_add_del_t *mp;
int ret;
/* Parse args required to build the message */
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
if (unformat (i, "%U", unformat_sw_if_index, vam, &sw_if_index))
;
else if (unformat (i, "sw_if_index %d", &sw_if_index))
;
else if (unformat (i, "disable"))
enable_disable = 0;
else if (unformat (i, "ip4"))
which = FLOW_VARIANT_IP4;
else if (unformat (i, "ip6"))
which = FLOW_VARIANT_IP6;
else if (unformat (i, "l2"))
which = FLOW_VARIANT_L2;
else
break;
}
if (sw_if_index == ~0)
{
errmsg ("missing interface name / explicit sw_if_index number \n");
return -99;
}
/* Construct the API message */
M (FLOWPROBE_TX_INTERFACE_ADD_DEL, mp);
mp->sw_if_index = ntohl (sw_if_index);
mp->is_add = enable_disable;
mp->which = which;
/* send it... */
S (mp);
/* Wait for a reply... */
W (ret);
return ret;
}
static int
api_flowprobe_params (vat_main_t * vam)
{
unformat_input_t *i = vam->input;
u8 record_l2 = 0, record_l3 = 0, record_l4 = 0;
u32 active_timer = ~0;
u32 passive_timer = ~0;
vl_api_flowprobe_params_t *mp;
int ret;
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
if (unformat (i, "active %d", &active_timer))
;
else if (unformat (i, "passive %d", &passive_timer))
;
else if (unformat (i, "record"))
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
if (unformat (i, "l2"))
record_l2 = 1;
else if (unformat (i, "l3"))
record_l3 = 1;
else if (unformat (i, "l4"))
record_l4 = 1;
else
break;
}
else
break;
}
if (passive_timer > 0 && active_timer > passive_timer)
{
errmsg ("Passive timer has to be greater than active one...\n");
return -99;
}
/* Construct the API message */
M (FLOWPROBE_PARAMS, mp);
mp->record_l2 = record_l2;
mp->record_l3 = record_l3;
mp->record_l4 = record_l4;
mp->active_timer = ntohl (active_timer);
mp->passive_timer = ntohl (passive_timer);
/* send it... */
S (mp);
/* Wait for a reply... */
W (ret);
return ret;
}
/*
* List of messages that the api test plugin sends,
* and that the data plane plugin processes
*/
#define foreach_vpe_api_msg \
_(flowprobe_tx_interface_add_del, "<intfc> [disable]") \
_(flowprobe_params, "record <[l2] [l3] [l4]> [active <timer> passive <timer>]")
static void
flowprobe_vat_api_hookup (vat_main_t * vam)
{
flowprobe_test_main_t *sm = &flowprobe_test_main;
/* Hook up handlers for replies from the data plane plug-in */
#define _(N,n) \
vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
#n, \
vl_api_##n##_t_handler, \
vl_noop_handler, \
vl_api_##n##_t_endian, \
vl_api_##n##_t_print, \
sizeof(vl_api_##n##_t), 1);
foreach_vpe_api_reply_msg;
#undef _
/* API messages we can send */
#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
foreach_vpe_api_msg;
#undef _
/* Help strings */
#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
foreach_vpe_api_msg;
#undef _
}
clib_error_t *
vat_plugin_register (vat_main_t * vam)
{
flowprobe_test_main_t *sm = &flowprobe_test_main;
u8 *name;
sm->vat_main = vam;
/* Ask the vpp engine for the first assigned message-id */
name = format (0, "flowprobe_%08x%c", api_version, 0);
sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
/* Don't attempt to hook up API messages if the data plane plugin is AWOL */
if (sm->msg_id_base != (u16) ~ 0)
flowprobe_vat_api_hookup (vam);
vec_free (name);
return 0;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
